From 51d07566045787b99219d809639c8724506fc78a Mon Sep 17 00:00:00 2001 From: Rhyland Klein <rklein@nvidia.com> Date: Tue, 25 Jan 2011 11:10:06 -0800 Subject: bq20z75: Add support for charge properties Adding support for charge properties for gas gauge. Also ensuring that battery mode is correct now for energy as well as charge properties by setting it on the fly. I also added 2 functions to power_supply.h to help identify the units for specific properties more easily by power supplies. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/bq20z75.c | 98 +++++++++++++++++++++++++++++++++++++++----- include/linux/power_supply.h | 44 ++++++++++++++++++++ 2 files changed, 131 insertions(+), 11 deletions(-) diff --git a/drivers/power/bq20z75.c b/drivers/power/bq20z75.c index 492da27e1a47..4141775e5ff6 100644 --- a/drivers/power/bq20z75.c +++ b/drivers/power/bq20z75.c @@ -38,11 +38,22 @@ enum { REG_CYCLE_COUNT, REG_SERIAL_NUMBER, REG_REMAINING_CAPACITY, + REG_REMAINING_CAPACITY_CHARGE, REG_FULL_CHARGE_CAPACITY, + REG_FULL_CHARGE_CAPACITY_CHARGE, REG_DESIGN_CAPACITY, + REG_DESIGN_CAPACITY_CHARGE, REG_DESIGN_VOLTAGE, }; +/* Battery Mode defines */ +#define BATTERY_MODE_OFFSET 0x03 +#define BATTERY_MODE_MASK 0x8000 +enum bq20z75_battery_mode { + BATTERY_MODE_AMPS, + BATTERY_MODE_WATTS +}; + /* manufacturer access defines */ #define MANUFACTURER_ACCESS_STATUS 0x0006 #define MANUFACTURER_ACCESS_SLEEP 0x0011 @@ -78,8 +89,12 @@ static const struct bq20z75_device_data { BQ20Z75_DATA(POWER_SUPPLY_PROP_CAPACITY, 0x0E, 0, 100), [REG_REMAINING_CAPACITY] = BQ20Z75_DATA(POWER_SUPPLY_PROP_ENERGY_NOW, 0x0F, 0, 65535), + [REG_REMAINING_CAPACITY_CHARGE] = + BQ20Z75_DATA(POWER_SUPPLY_PROP_CHARGE_NOW, 0x0F, 0, 65535), [REG_FULL_CHARGE_CAPACITY] = BQ20Z75_DATA(POWER_SUPPLY_PROP_ENERGY_FULL, 0x10, 0, 65535), + [REG_FULL_CHARGE_CAPACITY_CHARGE] = + BQ20Z75_DATA(POWER_SUPPLY_PROP_CHARGE_FULL, 0x10, 0, 65535), [REG_TIME_TO_EMPTY] = BQ20Z75_DATA(POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, 0x12, 0, 65535), @@ -93,6 +108,9 @@ static const struct bq20z75_device_data { [REG_DESIGN_CAPACITY] = BQ20Z75_DATA(POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, 0x18, 0, 65535), + [REG_DESIGN_CAPACITY_CHARGE] = + BQ20Z75_DATA(POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 0x18, 0, + 65535), [REG_DESIGN_VOLTAGE] = BQ20Z75_DATA(POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, 0x19, 0, 65535), @@ -117,6 +135,9 @@ static enum power_supply_property bq20z75_properties[] = { POWER_SUPPLY_PROP_ENERGY_NOW, POWER_SUPPLY_PROP_ENERGY_FULL, POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, + POWER_SUPPLY_PROP_CHARGE_NOW, + POWER_SUPPLY_PROP_CHARGE_FULL, + POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, }; struct bq20z75_info { @@ -260,6 +281,9 @@ static void bq20z75_unit_adjustment(struct i2c_client *client, case POWER_SUPPLY_PROP_VOLTAGE_NOW: case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: case POWER_SUPPLY_PROP_CURRENT_NOW: + case POWER_SUPPLY_PROP_CHARGE_NOW: + case POWER_SUPPLY_PROP_CHARGE_FULL: + case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: val->intval *= BASE_UNIT_CONVERSION; break; @@ -281,11 +305,44 @@ static void bq20z75_unit_adjustment(struct i2c_client *client, } } +static enum bq20z75_battery_mode +bq20z75_set_battery_mode(struct i2c_client *client, + enum bq20z75_battery_mode mode) +{ + int ret, original_val; + + original_val = bq20z75_read_word_data(client, BATTERY_MODE_OFFSET); + if (original_val < 0) + return original_val; + + if ((original_val & BATTERY_MODE_MASK) == mode) + return mode; + + if (mode == BATTERY_MODE_AMPS) + ret = original_val & ~BATTERY_MODE_MASK; + else + ret = original_val | BATTERY_MODE_MASK; + + ret = bq20z75_write_word_data(client, BATTERY_MODE_OFFSET, ret); + if (ret < 0) + return ret; + + return original_val & BATTERY_MODE_MASK; +} + static int bq20z75_get_battery_capacity(struct i2c_client *client, int reg_offset, enum power_supply_property psp, union power_supply_propval *val) { s32 ret; + enum bq20z75_battery_mode mode = BATTERY_MODE_WATTS; + + if (power_supply_is_amp_property(psp)) + mode = BATTERY_MODE_AMPS; + + mode = bq20z75_set_battery_mode(client, mode); + if (mode < 0) + return mode; ret = bq20z75_read_word_data(client, bq20z75_data[reg_offset].addr); if (ret < 0) @@ -298,6 +355,10 @@ static int bq20z75_get_battery_capacity(struct i2c_client *client, } else val->intval = ret; + ret = bq20z75_set_battery_mode(client, mode); + if (ret < 0) + return ret; + return 0; } @@ -318,11 +379,25 @@ static int bq20z75_get_battery_serial_number(struct i2c_client *client, return 0; } +static int bq20z75_get_property_index(struct i2c_client *client, + enum power_supply_property psp) +{ + int count; + for (count = 0; count < ARRAY_SIZE(bq20z75_data); count++) + if (psp == bq20z75_data[count].psp) + return count; + + dev_warn(&client->dev, + "%s: Invalid Property - %d\n", __func__, psp); + + return -EINVAL; +} + static int bq20z75_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { - int count; + int ps_index; int ret; struct bq20z75_info *bq20z75_device = container_of(psy, struct bq20z75_info, power_supply); @@ -343,13 +418,15 @@ static int bq20z75_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_ENERGY_NOW: case POWER_SUPPLY_PROP_ENERGY_FULL: case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: + case POWER_SUPPLY_PROP_CHARGE_NOW: + case POWER_SUPPLY_PROP_CHARGE_FULL: + case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: case POWER_SUPPLY_PROP_CAPACITY: - for (count = 0; count < ARRAY_SIZE(bq20z75_data); count++) { - if (psp == bq20z75_data[count].psp) - break; - } + ps_index = bq20z75_get_property_index(client, psp); + if (ps_index < 0) + return ps_index; - ret = bq20z75_get_battery_capacity(client, count, psp, val); + ret = bq20z75_get_battery_capacity(client, ps_index, psp, val); if (ret) return ret; @@ -369,12 +446,11 @@ static int bq20z75_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG: case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: - for (count = 0; count < ARRAY_SIZE(bq20z75_data); count++) { - if (psp == bq20z75_data[count].psp) - break; - } + ps_index = bq20z75_get_property_index(client, psp); + if (ps_index < 0) + return ps_index; - ret = bq20z75_get_battery_property(client, count, psp, val); + ret = bq20z75_get_battery_property(client, ps_index, psp, val); if (ret) return ret; diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 7d7325685c42..e3419fc5541e 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -213,4 +213,48 @@ extern void power_supply_unregister(struct power_supply *psy); /* For APM emulation, think legacy userspace. */ extern struct class *power_supply_class; +static inline bool power_supply_is_amp_property(enum power_supply_property psp) +{ + switch (psp) { + case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: + case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN: + case POWER_SUPPLY_PROP_CHARGE_FULL: + case POWER_SUPPLY_PROP_CHARGE_EMPTY: + case POWER_SUPPLY_PROP_CHARGE_NOW: + case POWER_SUPPLY_PROP_CHARGE_AVG: + case POWER_SUPPLY_PROP_CHARGE_COUNTER: + case POWER_SUPPLY_PROP_CURRENT_MAX: + case POWER_SUPPLY_PROP_CURRENT_NOW: + case POWER_SUPPLY_PROP_CURRENT_AVG: + return 1; + default: + break; + } + + return 0; +} + +static inline bool power_supply_is_watt_property(enum power_supply_property psp) +{ + switch (psp) { + case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: + case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN: + case POWER_SUPPLY_PROP_ENERGY_FULL: + case POWER_SUPPLY_PROP_ENERGY_EMPTY: + case POWER_SUPPLY_PROP_ENERGY_NOW: + case POWER_SUPPLY_PROP_ENERGY_AVG: + case POWER_SUPPLY_PROP_VOLTAGE_MAX: + case POWER_SUPPLY_PROP_VOLTAGE_MIN: + case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: + case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + case POWER_SUPPLY_PROP_VOLTAGE_AVG: + return 1; + default: + break; + } + + return 0; +} + #endif /* __LINUX_POWER_SUPPLY_H__ */ -- cgit v1.2.3 From 0b9536c957095eb1497828aa51b34ac695f67eae Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick <anarsoul@gmail.com> Date: Fri, 7 Jan 2011 16:28:16 +0000 Subject: leds: Add ability to blink via simple trigger As blink API is now available, it's possible to add ability to blink via simple trigger. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/leds/led-triggers.c | 20 ++++++++++++++++++++ include/linux/leds.h | 3 +++ 2 files changed, 23 insertions(+) diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index c41eb6180c9c..4bebae733349 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -231,6 +231,26 @@ void led_trigger_event(struct led_trigger *trigger, } EXPORT_SYMBOL_GPL(led_trigger_event); +void led_trigger_blink(struct led_trigger *trigger, + unsigned long *delay_on, + unsigned long *delay_off) +{ + struct list_head *entry; + + if (!trigger) + return; + + read_lock(&trigger->leddev_list_lock); + list_for_each(entry, &trigger->led_cdevs) { + struct led_classdev *led_cdev; + + led_cdev = list_entry(entry, struct led_classdev, trig_list); + led_blink_set(led_cdev, delay_on, delay_off); + } + read_unlock(&trigger->leddev_list_lock); +} +EXPORT_SYMBOL_GPL(led_trigger_blink); + void led_trigger_register_simple(const char *name, struct led_trigger **tp) { struct led_trigger *trigger; diff --git a/include/linux/leds.h b/include/linux/leds.h index 0f19df9e37b0..ffd5c3d91193 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -145,6 +145,9 @@ extern void led_trigger_register_simple(const char *name, extern void led_trigger_unregister_simple(struct led_trigger *trigger); extern void led_trigger_event(struct led_trigger *trigger, enum led_brightness event); +extern void led_trigger_blink(struct led_trigger *trigger, + unsigned long *delay_on, + unsigned long *delay_off); #else -- cgit v1.2.3 From 6501f728c56f831626d52b236023e556bca37f51 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick <anarsoul@gmail.com> Date: Fri, 7 Jan 2011 18:28:17 +0200 Subject: power_supply: Add new LED trigger charging-blink-solid-full Add new trigger to power_supply LEDs. It will blink when battery is charging, and stay solid when battery is charged. It's usefull to indicate battery state when there's only one LED available. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/power_supply_leds.c | 19 +++++++++++++++++++ include/linux/power_supply.h | 2 ++ 2 files changed, 21 insertions(+) diff --git a/drivers/power/power_supply_leds.c b/drivers/power/power_supply_leds.c index 031a554837f7..da25eb94e5c6 100644 --- a/drivers/power/power_supply_leds.c +++ b/drivers/power/power_supply_leds.c @@ -21,6 +21,8 @@ static void power_supply_update_bat_leds(struct power_supply *psy) { union power_supply_propval status; + unsigned long delay_on = 0; + unsigned long delay_off = 0; if (psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &status)) return; @@ -32,16 +34,22 @@ static void power_supply_update_bat_leds(struct power_supply *psy) led_trigger_event(psy->charging_full_trig, LED_FULL); led_trigger_event(psy->charging_trig, LED_OFF); led_trigger_event(psy->full_trig, LED_FULL); + led_trigger_event(psy->charging_blink_full_solid_trig, + LED_FULL); break; case POWER_SUPPLY_STATUS_CHARGING: led_trigger_event(psy->charging_full_trig, LED_FULL); led_trigger_event(psy->charging_trig, LED_FULL); led_trigger_event(psy->full_trig, LED_OFF); + led_trigger_blink(psy->charging_blink_full_solid_trig, + &delay_on, &delay_off); break; default: led_trigger_event(psy->charging_full_trig, LED_OFF); led_trigger_event(psy->charging_trig, LED_OFF); led_trigger_event(psy->full_trig, LED_OFF); + led_trigger_event(psy->charging_blink_full_solid_trig, + LED_OFF); break; } } @@ -64,15 +72,24 @@ static int power_supply_create_bat_triggers(struct power_supply *psy) if (!psy->full_trig_name) goto full_failed; + psy->charging_blink_full_solid_trig_name = kasprintf(GFP_KERNEL, + "%s-charging-blink-full-solid", psy->name); + if (!psy->charging_blink_full_solid_trig_name) + goto charging_blink_full_solid_failed; + led_trigger_register_simple(psy->charging_full_trig_name, &psy->charging_full_trig); led_trigger_register_simple(psy->charging_trig_name, &psy->charging_trig); led_trigger_register_simple(psy->full_trig_name, &psy->full_trig); + led_trigger_register_simple(psy->charging_blink_full_solid_trig_name, + &psy->charging_blink_full_solid_trig); goto success; +charging_blink_full_solid_failed: + kfree(psy->full_trig_name); full_failed: kfree(psy->charging_trig_name); charging_failed: @@ -88,6 +105,8 @@ static void power_supply_remove_bat_triggers(struct power_supply *psy) led_trigger_unregister_simple(psy->charging_full_trig); led_trigger_unregister_simple(psy->charging_trig); led_trigger_unregister_simple(psy->full_trig); + led_trigger_unregister_simple(psy->charging_blink_full_solid_trig); + kfree(psy->charging_blink_full_solid_trig_name); kfree(psy->full_trig_name); kfree(psy->charging_trig_name); kfree(psy->charging_full_trig_name); diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index e3419fc5541e..20f23fef63cc 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -173,6 +173,8 @@ struct power_supply { char *full_trig_name; struct led_trigger *online_trig; char *online_trig_name; + struct led_trigger *charging_blink_full_solid_trig; + char *charging_blink_full_solid_trig_name; #endif }; -- cgit v1.2.3 From 6f9524e9e118929f1de02840dffe858f99685aea Mon Sep 17 00:00:00 2001 From: Lukas Czerner <lczerner@redhat.com> Date: Mon, 21 Feb 2011 20:16:21 -0500 Subject: ext4: update ext4 documentation Add documentation for mount options and ioctls to Documentation/filesystem/ext4.txt, which has not been udpated for some time. Also add for ext4 sysfs tunables to the Documentation/ABI/testing/sysfs-fs-ext4 file, and fix a few typographical errors in that file. https://bugzilla.kernel.org/show_bug.cgi?id=9423 Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- Documentation/ABI/testing/sysfs-fs-ext4 | 13 +- Documentation/filesystems/ext4.txt | 207 +++++++++++++++++++++++++++++++- 2 files changed, 216 insertions(+), 4 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-fs-ext4 b/Documentation/ABI/testing/sysfs-fs-ext4 index 5fb709997d96..f22ac0872ae8 100644 --- a/Documentation/ABI/testing/sysfs-fs-ext4 +++ b/Documentation/ABI/testing/sysfs-fs-ext4 @@ -48,7 +48,7 @@ Description: will have its blocks allocated out of its own unique preallocation pool. -What: /sys/fs/ext4/<disk>/inode_readahead +What: /sys/fs/ext4/<disk>/inode_readahead_blks Date: March 2008 Contact: "Theodore Ts'o" <tytso@mit.edu> Description: @@ -85,7 +85,14 @@ Date: June 2008 Contact: "Theodore Ts'o" <tytso@mit.edu> Description: Tuning parameter which (if non-zero) controls the goal - inode used by the inode allocator in p0reference to - all other allocation hueristics. This is intended for + inode used by the inode allocator in preference to + all other allocation heuristics. This is intended for debugging use only, and should be 0 on production systems. + +What: /sys/fs/ext4/<disk>/max_writeback_mb_bump +Date: September 2009 +Contact: "Theodore Ts'o" <tytso@mit.edu> +Description: + The maximum number of megabytes the writeback code will + try to write out before move on to another inode. diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 6ab9442d7eeb..6b050464a90d 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt @@ -367,12 +367,47 @@ init_itable=n The lazy itable init code will wait n times the minimizes the impact on the systme performance while file system's inode table is being initialized. -discard Controls whether ext4 should issue discard/TRIM +discard Controls whether ext4 should issue discard/TRIM nodiscard(*) commands to the underlying block device when blocks are freed. This is useful for SSD devices and sparse/thinly-provisioned LUNs, but it is off by default until sufficient testing has been done. +nouid32 Disables 32-bit UIDs and GIDs. This is for + interoperability with older kernels which only + store and expect 16-bit values. + +resize Allows to resize filesystem to the end of the last + existing block group, further resize has to be done + with resize2fs either online, or offline. It can be + used only with conjunction with remount. + +block_validity This options allows to enables/disables the in-kernel +noblock_validity facility for tracking filesystem metadata blocks + within internal data structures. This allows multi- + block allocator and other routines to quickly locate + extents which might overlap with filesystem metadata + blocks. This option is intended for debugging + purposes and since it negatively affects the + performance, it is off by default. + +dioread_lock Controls whether or not ext4 should use the DIO read +dioread_nolock locking. If the dioread_nolock option is specified + ext4 will allocate uninitialized extent before buffer + write and convert the extent to initialized after IO + completes. This approach allows ext4 code to avoid + using inode mutex, which improves scalability on high + speed storages. However this does not work with nobh + option and the mount will fail. Nor does it work with + data journaling and dioread_nolock option will be + ignored with kernel warning. Note that dioread_nolock + code path is only used for extent-based files. + Because of the restrictions this options comprises + it is off by default (e.g. dioread_lock). + +i_version Enable 64-bit inode version support. This option is + off by default. + Data Mode ========= There are 3 different data modes: @@ -400,6 +435,176 @@ needs to be read from and written to disk at the same time where it outperforms all others modes. Currently ext4 does not have delayed allocation support if this data journalling mode is selected. +/proc entries +============= + +Information about mounted ext4 file systems can be found in +/proc/fs/ext4. Each mounted filesystem will have a directory in +/proc/fs/ext4 based on its device name (i.e., /proc/fs/ext4/hdc or +/proc/fs/ext4/dm-0). The files in each per-device directory are shown +in table below. + +Files in /proc/fs/ext4/<devname> +.............................................................................. + File Content + mb_groups details of multiblock allocator buddy cache of free blocks +.............................................................................. + +/sys entries +============ + +Information about mounted ext4 file systems can be found in +/sys/fs/ext4. Each mounted filesystem will have a directory in +/sys/fs/ext4 based on its device name (i.e., /sys/fs/ext4/hdc or +/sys/fs/ext4/dm-0). The files in each per-device directory are shown +in table below. + +Files in /sys/fs/ext4/<devname> +(see also Documentation/ABI/testing/sysfs-fs-ext4) +.............................................................................. + File Content + + delayed_allocation_blocks This file is read-only and shows the number of + blocks that are dirty in the page cache, but + which do not have their location in the + filesystem allocated yet. + + inode_goal Tuning parameter which (if non-zero) controls + the goal inode used by the inode allocator in + preference to all other allocation heuristics. + This is intended for debugging use only, and + should be 0 on production systems. + + inode_readahead_blks Tuning parameter which controls the maximum + number of inode table blocks that ext4's inode + table readahead algorithm will pre-read into + the buffer cache + + lifetime_write_kbytes This file is read-only and shows the number of + kilobytes of data that have been written to this + filesystem since it was created. + + max_writeback_mb_bump The maximum number of megabytes the writeback + code will try to write out before move on to + another inode. + + mb_group_prealloc The multiblock allocator will round up allocation + requests to a multiple of this tuning parameter if + the stripe size is not set in the ext4 superblock + + mb_max_to_scan The maximum number of extents the multiblock + allocator will search to find the best extent + + mb_min_to_scan The minimum number of extents the multiblock + allocator will search to find the best extent + + mb_order2_req Tuning parameter which controls the minimum size + for requests (as a power of 2) where the buddy + cache is used + + mb_stats Controls whether the multiblock allocator should + collect statistics, which are shown during the + unmount. 1 means to collect statistics, 0 means + not to collect statistics + + mb_stream_req Files which have fewer blocks than this tunable + parameter will have their blocks allocated out + of a block group specific preallocation pool, so + that small files are packed closely together. + Each large file will have its blocks allocated + out of its own unique preallocation pool. + + session_write_kbytes This file is read-only and shows the number of + kilobytes of data that have been written to this + filesystem since it was mounted. +.............................................................................. + +Ioctls +====== + +There is some Ext4 specific functionality which can be accessed by applications +through the system call interfaces. The list of all Ext4 specific ioctls are +shown in the table below. + +Table of Ext4 specific ioctls +.............................................................................. + Ioctl Description + EXT4_IOC_GETFLAGS Get additional attributes associated with inode. + The ioctl argument is an integer bitfield, with + bit values described in ext4.h. This ioctl is an + alias for FS_IOC_GETFLAGS. + + EXT4_IOC_SETFLAGS Set additional attributes associated with inode. + The ioctl argument is an integer bitfield, with + bit values described in ext4.h. This ioctl is an + alias for FS_IOC_SETFLAGS. + + EXT4_IOC_GETVERSION + EXT4_IOC_GETVERSION_OLD + Get the inode i_generation number stored for + each inode. The i_generation number is normally + changed only when new inode is created and it is + particularly useful for network filesystems. The + '_OLD' version of this ioctl is an alias for + FS_IOC_GETVERSION. + + EXT4_IOC_SETVERSION + EXT4_IOC_SETVERSION_OLD + Set the inode i_generation number stored for + each inode. The '_OLD' version of this ioctl + is an alias for FS_IOC_SETVERSION. + + EXT4_IOC_GROUP_EXTEND This ioctl has the same purpose as the resize + mount option. It allows to resize filesystem + to the end of the last existing block group, + further resize has to be done with resize2fs, + either online, or offline. The argument points + to the unsigned logn number representing the + filesystem new block count. + + EXT4_IOC_MOVE_EXT Move the block extents from orig_fd (the one + this ioctl is pointing to) to the donor_fd (the + one specified in move_extent structure passed + as an argument to this ioctl). Then, exchange + inode metadata between orig_fd and donor_fd. + This is especially useful for online + defragmentation, because the allocator has the + opportunity to allocate moved blocks better, + ideally into one contiguous extent. + + EXT4_IOC_GROUP_ADD Add a new group descriptor to an existing or + new group descriptor block. The new group + descriptor is described by ext4_new_group_input + structure, which is passed as an argument to + this ioctl. This is especially useful in + conjunction with EXT4_IOC_GROUP_EXTEND, + which allows online resize of the filesystem + to the end of the last existing block group. + Those two ioctls combined is used in userspace + online resize tool (e.g. resize2fs). + + EXT4_IOC_MIGRATE This ioctl operates on the filesystem itself. + It converts (migrates) ext3 indirect block mapped + inode to ext4 extent mapped inode by walking + through indirect block mapping of the original + inode and converting contiguous block ranges + into ext4 extents of the temporary inode. Then, + inodes are swapped. This ioctl might help, when + migrating from ext3 to ext4 filesystem, however + suggestion is to create fresh ext4 filesystem + and copy data from the backup. Note, that + filesystem has to support extents for this ioctl + to work. + + EXT4_IOC_ALLOC_DA_BLKS Force all of the delay allocated blocks to be + allocated to preserve application-expected ext3 + behaviour. Note that this will also start + triggering a write of the data blocks, but this + behaviour may change in the future as it is + not necessary and has been done this way only + for sake of simplicity. +.............................................................................. + References ========== -- cgit v1.2.3 From da488945f4bf4096f4ab6091938469bd8822cfec Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Mon, 21 Feb 2011 20:39:58 -0500 Subject: ext4: fix compile warnings with EXT4FS_DEBUG enabled Compile 2.6.38-rc1 with turning EXT4FS_DEBUG on, we get following compile warnings. This patch fixes them. CC fs/ext4/hash.o CC fs/ext4/resize.o fs/ext4/resize.c: In function 'setup_new_group_blocks': fs/ext4/resize.c:233:2: warning: format '%#04llx' expects type 'long long unsigned int', but argument 3 has type 'long unsigned int' fs/ext4/resize.c:251:2: warning: format '%#04llx' expects type 'long long unsigned int', but argument 3 has type 'long unsigned int' CC fs/ext4/extents.o CC fs/ext4/ext4_jbd2.o CC fs/ext4/migrate.o Reported-by: Akira Fujita <a-fujita@rs.jp.nec.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/resize.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 3ecc6e45d2f9..66fec4ee76fa 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -230,7 +230,7 @@ static int setup_new_group_blocks(struct super_block *sb, } /* Zero out all of the reserved backup group descriptor table blocks */ - ext4_debug("clear inode table blocks %#04llx -> %#04llx\n", + ext4_debug("clear inode table blocks %#04llx -> %#04lx\n", block, sbi->s_itb_per_group); err = sb_issue_zeroout(sb, gdblocks + start + 1, reserved_gdb, GFP_NOFS); @@ -248,7 +248,7 @@ static int setup_new_group_blocks(struct super_block *sb, /* Zero out all of the inode table blocks */ block = input->inode_table; - ext4_debug("clear inode table blocks %#04llx -> %#04llx\n", + ext4_debug("clear inode table blocks %#04llx -> %#04lx\n", block, sbi->s_itb_per_group); err = sb_issue_zeroout(sb, block, sbi->s_itb_per_group, GFP_NOFS); if (err) -- cgit v1.2.3 From 7dc576158d7e5cdff3349f78598fdb4080536342 Mon Sep 17 00:00:00 2001 From: Peter Huewe <peterhuewe@gmx.de> Date: Mon, 21 Feb 2011 21:01:42 -0500 Subject: ext4: Fix sparse warning: Using plain integer as NULL pointer This patch fixes the warning "Using plain integer as NULL pointer", generated by sparse, by replacing the offending 0s with NULL. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/extents.c | 8 ++++---- fs/ext4/ialloc.c | 2 +- fs/ext4/inode.c | 18 +++++++++--------- fs/ext4/migrate.c | 10 +++++----- fs/ext4/page-io.c | 4 ++-- fs/ext4/super.c | 2 +- fs/ext4/xattr.c | 2 +- 7 files changed, 23 insertions(+), 23 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index ccce8a7e94ed..d16f6b5a140b 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -1034,7 +1034,7 @@ cleanup: for (i = 0; i < depth; i++) { if (!ablocks[i]) continue; - ext4_free_blocks(handle, inode, 0, ablocks[i], 1, + ext4_free_blocks(handle, inode, NULL, ablocks[i], 1, EXT4_FREE_BLOCKS_METADATA); } } @@ -2059,7 +2059,7 @@ static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode, if (err) return err; ext_debug("index is empty, remove it, free block %llu\n", leaf); - ext4_free_blocks(handle, inode, 0, leaf, 1, + ext4_free_blocks(handle, inode, NULL, leaf, 1, EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET); return err; } @@ -2156,7 +2156,7 @@ static int ext4_remove_blocks(handle_t *handle, struct inode *inode, num = le32_to_cpu(ex->ee_block) + ee_len - from; start = ext4_ext_pblock(ex) + ee_len - num; ext_debug("free last %u blocks starting %llu\n", num, start); - ext4_free_blocks(handle, inode, 0, start, num, flags); + ext4_free_blocks(handle, inode, NULL, start, num, flags); } else if (from == le32_to_cpu(ex->ee_block) && to <= le32_to_cpu(ex->ee_block) + ee_len - 1) { printk(KERN_INFO "strange request: removal %u-%u from %u:%u\n", @@ -3485,7 +3485,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, /* not a good idea to call discard here directly, * but otherwise we'd need to call it every free() */ ext4_discard_preallocations(inode); - ext4_free_blocks(handle, inode, 0, ext4_ext_pblock(&newex), + ext4_free_blocks(handle, inode, NULL, ext4_ext_pblock(&newex), ext4_ext_get_actual_len(&newex), 0); goto out2; } diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index eb9097aec6f0..2fd3b0e41787 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -649,7 +649,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent, *group = parent_group + flex_size; if (*group > ngroups) *group = 0; - return find_group_orlov(sb, parent, group, mode, 0); + return find_group_orlov(sb, parent, group, mode, NULL); } /* diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 9f7f9e49914f..c6c6b7fcb455 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -720,7 +720,7 @@ allocated: return ret; failed_out: for (i = 0; i < index; i++) - ext4_free_blocks(handle, inode, 0, new_blocks[i], 1, 0); + ext4_free_blocks(handle, inode, NULL, new_blocks[i], 1, 0); return ret; } @@ -823,20 +823,20 @@ static int ext4_alloc_branch(handle_t *handle, struct inode *inode, return err; failed: /* Allocation failed, free what we already allocated */ - ext4_free_blocks(handle, inode, 0, new_blocks[0], 1, 0); + ext4_free_blocks(handle, inode, NULL, new_blocks[0], 1, 0); for (i = 1; i <= n ; i++) { /* * branch[i].bh is newly allocated, so there is no * need to revoke the block, which is why we don't * need to set EXT4_FREE_BLOCKS_METADATA. */ - ext4_free_blocks(handle, inode, 0, new_blocks[i], 1, + ext4_free_blocks(handle, inode, NULL, new_blocks[i], 1, EXT4_FREE_BLOCKS_FORGET); } for (i = n+1; i < indirect_blks; i++) - ext4_free_blocks(handle, inode, 0, new_blocks[i], 1, 0); + ext4_free_blocks(handle, inode, NULL, new_blocks[i], 1, 0); - ext4_free_blocks(handle, inode, 0, new_blocks[i], num, 0); + ext4_free_blocks(handle, inode, NULL, new_blocks[i], num, 0); return err; } @@ -924,7 +924,7 @@ err_out: ext4_free_blocks(handle, inode, where[i].bh, 0, 1, EXT4_FREE_BLOCKS_FORGET); } - ext4_free_blocks(handle, inode, 0, le32_to_cpu(where[num].key), + ext4_free_blocks(handle, inode, NULL, le32_to_cpu(where[num].key), blks, 0); return err; @@ -4228,7 +4228,7 @@ static int ext4_clear_blocks(handle_t *handle, struct inode *inode, for (p = first; p < last; p++) *p = 0; - ext4_free_blocks(handle, inode, 0, block_to_free, count, flags); + ext4_free_blocks(handle, inode, NULL, block_to_free, count, flags); return 0; } @@ -4416,7 +4416,7 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode, * transaction where the data blocks are * actually freed. */ - ext4_free_blocks(handle, inode, 0, nr, 1, + ext4_free_blocks(handle, inode, NULL, nr, 1, EXT4_FREE_BLOCKS_METADATA| EXT4_FREE_BLOCKS_FORGET); @@ -4875,7 +4875,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) return inode; ei = EXT4_I(inode); - iloc.bh = 0; + iloc.bh = NULL; ret = __ext4_get_inode_loc(inode, &iloc, 0); if (ret < 0) diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c index b0a126f23c20..d1bafa57f483 100644 --- a/fs/ext4/migrate.c +++ b/fs/ext4/migrate.c @@ -263,7 +263,7 @@ static int free_dind_blocks(handle_t *handle, for (i = 0; i < max_entries; i++) { if (tmp_idata[i]) { extend_credit_for_blkdel(handle, inode); - ext4_free_blocks(handle, inode, 0, + ext4_free_blocks(handle, inode, NULL, le32_to_cpu(tmp_idata[i]), 1, EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET); @@ -271,7 +271,7 @@ static int free_dind_blocks(handle_t *handle, } put_bh(bh); extend_credit_for_blkdel(handle, inode); - ext4_free_blocks(handle, inode, 0, le32_to_cpu(i_data), 1, + ext4_free_blocks(handle, inode, NULL, le32_to_cpu(i_data), 1, EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET); return 0; @@ -302,7 +302,7 @@ static int free_tind_blocks(handle_t *handle, } put_bh(bh); extend_credit_for_blkdel(handle, inode); - ext4_free_blocks(handle, inode, 0, le32_to_cpu(i_data), 1, + ext4_free_blocks(handle, inode, NULL, le32_to_cpu(i_data), 1, EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET); return 0; @@ -315,7 +315,7 @@ static int free_ind_block(handle_t *handle, struct inode *inode, __le32 *i_data) /* ei->i_data[EXT4_IND_BLOCK] */ if (i_data[0]) { extend_credit_for_blkdel(handle, inode); - ext4_free_blocks(handle, inode, 0, + ext4_free_blocks(handle, inode, NULL, le32_to_cpu(i_data[0]), 1, EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET); @@ -428,7 +428,7 @@ static int free_ext_idx(handle_t *handle, struct inode *inode, } put_bh(bh); extend_credit_for_blkdel(handle, inode); - ext4_free_blocks(handle, inode, 0, block, 1, + ext4_free_blocks(handle, inode, NULL, block, 1, EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET); return retval; } diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index 955cc309142f..68d92a8f71d7 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -279,9 +279,9 @@ void ext4_io_submit(struct ext4_io_submit *io) BUG_ON(bio_flagged(io->io_bio, BIO_EOPNOTSUPP)); bio_put(io->io_bio); } - io->io_bio = 0; + io->io_bio = NULL; io->io_op = 0; - io->io_end = 0; + io->io_end = NULL; } static int io_submit_init(struct ext4_io_submit *io, diff --git a/fs/ext4/super.c b/fs/ext4/super.c index f6a318f836b2..ef83457fd4ea 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1451,7 +1451,7 @@ static int parse_options(char *options, struct super_block *sb, * Initialize args struct so we know whether arg was * found; some options take optional arguments. */ - args[0].to = args[0].from = 0; + args[0].to = args[0].from = NULL; token = match_token(p, tokens, args); switch (token) { case Opt_bsd_df: diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index fc32176eee39..f4c03af05d69 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -833,7 +833,7 @@ inserted: new_bh = sb_getblk(sb, block); if (!new_bh) { getblk_failed: - ext4_free_blocks(handle, inode, 0, block, 1, + ext4_free_blocks(handle, inode, NULL, block, 1, EXT4_FREE_BLOCKS_METADATA); error = -EIO; goto cleanup; -- cgit v1.2.3 From 5dbd571d875d73e087c1eeb3d840cfc653a97422 Mon Sep 17 00:00:00 2001 From: "Alexander V. Lukyanov" <lav@netis.ru> Date: Mon, 21 Feb 2011 21:33:21 -0500 Subject: ext4: allow inode_readahead_blks=0 (linux-2.6.37) I cannot disable inode-read-ahead feature of ext4 (on 2.6.37): # echo 0 > /sys/fs/ext4/sda2/inode_readahead_blks bash: echo: write error: Invalid argument On a server with lots of small files and random access this read-ahead makes performance worse, and I'd like to disable it. I work around this problem by using value of 1, but it still reads an extra block. This patch fixes the problem by checking for zero explicitly. Signed-off-by: Alexander V. Lukyanov <lav@netis.ru> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index ef83457fd4ea..a1ac24b6a758 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1771,7 +1771,7 @@ set_qf_format: return 0; if (option < 0 || option > (1 << 30)) return 0; - if (!is_power_of_2(option)) { + if (option && !is_power_of_2(option)) { ext4_msg(sb, KERN_ERR, "EXT4-fs: inode_readahead_blks" " must be a power of 2"); @@ -2412,7 +2412,7 @@ static ssize_t inode_readahead_blks_store(struct ext4_attr *a, if (parse_strtoul(buf, 0x40000000, &t)) return -EINVAL; - if (!is_power_of_2(t)) + if (t && !is_power_of_2(t)) return -EINVAL; sbi->s_inode_readahead_blks = t; -- cgit v1.2.3 From f722e17fdb2c97bbec2563636dd88489cdb1428b Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Sat, 8 Jan 2011 19:12:26 +0100 Subject: power_supply: Ignore -ENODATA errors when generating uevents Sometimes a driver can not report a meaningful value for a certain property and returns -ENODATA. Currently when generating a uevent and a property return -ENODATA it is treated as an error an no uevent is generated at all. This is not an desirable behavior. This patch adds a special case for -ENODATA and ignores properties which return this error code when generating the uevent. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/power_supply_sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c index cd1f90754a3a..605514afc29f 100644 --- a/drivers/power/power_supply_sysfs.c +++ b/drivers/power/power_supply_sysfs.c @@ -270,7 +270,7 @@ int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env) attr = &power_supply_attrs[psy->properties[j]]; ret = power_supply_show_property(dev, attr, prop_buf); - if (ret == -ENODEV) { + if (ret == -ENODEV || ret == -ENODATA) { /* When a battery is absent, we expect -ENODEV. Don't abort; send the uevent with at least the the PRESENT=0 property */ ret = 0; -- cgit v1.2.3 From 97774672573ac4355bd12cf84b202555c1131b69 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Mon, 21 Feb 2011 15:34:19 +0100 Subject: power_supply: Initialize changed_work before calling device_add Calling device_add causes an inital uevent for that device to be generated. The power_supply uevent function calls the drivers get_property function, which might causes the driver to update its state, which again might causes the driver to call power_supply_changed(). Since the power_supplys changed_work has not been initialized at this point the behavior is undefined and can result in an OOPS. This patch fixes the issue by initializing the power_supplys changed_work prior to adding the power_supplys device to the device tree. Reported-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/power_supply_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index 970f7335d3a7..329b46b2327d 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -171,6 +171,8 @@ int power_supply_register(struct device *parent, struct power_supply *psy) dev_set_drvdata(dev, psy); psy->dev = dev; + INIT_WORK(&psy->changed_work, power_supply_changed_work); + rc = kobject_set_name(&dev->kobj, "%s", psy->name); if (rc) goto kobject_set_name_failed; @@ -179,8 +181,6 @@ int power_supply_register(struct device *parent, struct power_supply *psy) if (rc) goto device_add_failed; - INIT_WORK(&psy->changed_work, power_supply_changed_work); - rc = power_supply_create_triggers(psy); if (rc) goto create_triggers_failed; -- cgit v1.2.3 From 5661f334e8a53848552c8763f3bd63d0672b2e7b Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Mon, 24 May 2010 20:36:52 +0200 Subject: bq27x00: Add type property This patch adds the type property to the bq27x00 battery driver. All bq27x00 are lithium ion batteries. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index eff0273d4030..bb043f93cead 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -78,6 +78,7 @@ static enum power_supply_property bq27x00_battery_props[] = { POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, + POWER_SUPPLY_PROP_TECHNOLOGY, }; /* @@ -277,6 +278,9 @@ static int bq27x00_battery_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW: ret = bq27x00_battery_time(di, BQ27x00_REG_TTF, val); break; + case POWER_SUPPLY_PROP_TECHNOLOGY: + val->intval = POWER_SUPPLY_TECHNOLOGY_LION; + break; default: return -EINVAL; } -- cgit v1.2.3 From 0e9f30497e88600ba52013665270f543bb94f0d8 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Mon, 24 May 2010 20:20:57 +0200 Subject: bq27x00: Improve temperature property precession This patch improves the precession of the temperature property of the bq27x00 driver. By dividing before multiplying the current code effectively cuts of the last decimal digit. This patch fixes it by multiplying before dividing. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index bb043f93cead..4f7465999c86 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -109,7 +109,7 @@ static int bq27x00_battery_temperature(struct bq27x00_device_info *di) if (di->chip == BQ27500) return temp - 2731; else - return ((temp >> 2) - 273) * 10; + return ((temp * 5) - 5463) / 2; } /* -- cgit v1.2.3 From a2e5118c370e78c3841606e7edc7677c986325fa Mon Sep 17 00:00:00 2001 From: Pali Rohár <pali.rohar@gmail.com> Date: Mon, 24 May 2010 20:52:13 +0200 Subject: bq27x00: Fix CURRENT_NOW property MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit According to the bq27000 datasheet the current should be calculated by the following formula: current = AI * 3570 / 20 This patch adjust the drivers code accordingly. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 4f7465999c86..1b06134e0ae8 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -44,6 +44,8 @@ #define BQ27500_FLAG_DSC BIT(0) #define BQ27500_FLAG_FC BIT(9) +#define BQ27000_RS 20 /* Resistor sense */ + /* If the system has several batteries we need a different name for each * of them... */ @@ -149,7 +151,7 @@ static int bq27x00_battery_current(struct bq27x00_device_info *di) if (di->chip == BQ27500) { /* bq27500 returns signed value */ - curr = (int)(s16)curr; + curr = (int)((s16)curr) * 1000; } else { ret = bq27x00_read(BQ27x00_REG_FLAGS, &flags, 0, di); if (ret < 0) { @@ -160,9 +162,10 @@ static int bq27x00_battery_current(struct bq27x00_device_info *di) dev_dbg(di->dev, "negative current!\n"); curr = -curr; } + curr = curr * 3570 / BQ27000_RS; } - return curr * 1000; + return curr; } /* -- cgit v1.2.3 From 3413b4ea250ff0b4142a154a2764e33979957e8b Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Mon, 24 May 2010 21:57:33 +0200 Subject: bq27x00: Return -ENODEV for properties if the battery is not present This patch changes get_property callback of the bq27x00 battery to return -ENODEV for properties other then the PROP_PRESENT if the battery is not present. The power subsystem core expects a driver to behave that way. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 1b06134e0ae8..9f16666dc466 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -252,16 +252,21 @@ static int bq27x00_battery_get_property(struct power_supply *psy, { int ret = 0; struct bq27x00_device_info *di = to_bq27x00_device_info(psy); + int voltage = bq27x00_battery_voltage(di); + + if (psp != POWER_SUPPLY_PROP_PRESENT && voltage <= 0) + return -ENODEV; switch (psp) { case POWER_SUPPLY_PROP_STATUS: ret = bq27x00_battery_status(di, val); break; case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = voltage; + break; case POWER_SUPPLY_PROP_PRESENT: - val->intval = bq27x00_battery_voltage(di); if (psp == POWER_SUPPLY_PROP_PRESENT) - val->intval = val->intval <= 0 ? 0 : 1; + val->intval = voltage <= 0 ? 0 : 1; break; case POWER_SUPPLY_PROP_CURRENT_NOW: val->intval = bq27x00_battery_current(di); -- cgit v1.2.3 From a40402ef0bf3b6e53a7dfd396e9487eb2f613e19 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Mon, 24 May 2010 19:37:58 +0200 Subject: bq27x00: Prepare code for addition of bq27000 platform driver This patch simplifies the drivers data structure and moves code to be shared by the bq27000 and bq27200/bq27500 init functions into a common function. This patch has no functional changes, it only moves code around. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 86 +++++++++++++++++++---------------------- 1 file changed, 39 insertions(+), 47 deletions(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 9f16666dc466..def951d8fc2b 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -54,8 +54,8 @@ static DEFINE_MUTEX(battery_mutex); struct bq27x00_device_info; struct bq27x00_access_methods { - int (*read)(u8 reg, int *rt_value, int b_single, - struct bq27x00_device_info *di); + int (*read)(struct bq27x00_device_info *, u8 reg, int *rt_value, + bool single); }; enum bq27x00_chip { BQ27000, BQ27500 }; @@ -63,11 +63,11 @@ enum bq27x00_chip { BQ27000, BQ27500 }; struct bq27x00_device_info { struct device *dev; int id; - struct bq27x00_access_methods *bus; - struct power_supply bat; enum bq27x00_chip chip; - struct i2c_client *client; + struct power_supply bat; + + struct bq27x00_access_methods bus; }; static enum power_supply_property bq27x00_battery_props[] = { @@ -87,10 +87,10 @@ static enum power_supply_property bq27x00_battery_props[] = { * Common code for BQ27x00 devices */ -static int bq27x00_read(u8 reg, int *rt_value, int b_single, - struct bq27x00_device_info *di) +static inline int bq27x00_read(struct bq27x00_device_info *di, u8 reg, + int *rt_value, bool single) { - return di->bus->read(reg, rt_value, b_single, di); + return di->bus.read(di, reg, rt_value, single); } /* @@ -102,7 +102,7 @@ static int bq27x00_battery_temperature(struct bq27x00_device_info *di) int ret; int temp = 0; - ret = bq27x00_read(BQ27x00_REG_TEMP, &temp, 0, di); + ret = bq27x00_read(di, BQ27x00_REG_TEMP, &temp, false); if (ret) { dev_err(di->dev, "error reading temperature\n"); return ret; @@ -123,7 +123,7 @@ static int bq27x00_battery_voltage(struct bq27x00_device_info *di) int ret; int volt = 0; - ret = bq27x00_read(BQ27x00_REG_VOLT, &volt, 0, di); + ret = bq27x00_read(di, BQ27x00_REG_VOLT, &volt, false); if (ret) { dev_err(di->dev, "error reading voltage\n"); return ret; @@ -143,7 +143,7 @@ static int bq27x00_battery_current(struct bq27x00_device_info *di) int curr = 0; int flags = 0; - ret = bq27x00_read(BQ27x00_REG_AI, &curr, 0, di); + ret = bq27x00_read(di, BQ27x00_REG_AI, &curr, false); if (ret) { dev_err(di->dev, "error reading current\n"); return 0; @@ -153,7 +153,7 @@ static int bq27x00_battery_current(struct bq27x00_device_info *di) /* bq27500 returns signed value */ curr = (int)((s16)curr) * 1000; } else { - ret = bq27x00_read(BQ27x00_REG_FLAGS, &flags, 0, di); + ret = bq27x00_read(di, BQ27x00_REG_FLAGS, &flags, false); if (ret < 0) { dev_err(di->dev, "error reading flags\n"); return 0; @@ -178,9 +178,9 @@ static int bq27x00_battery_rsoc(struct bq27x00_device_info *di) int rsoc = 0; if (di->chip == BQ27500) - ret = bq27x00_read(BQ27500_REG_SOC, &rsoc, 0, di); + ret = bq27x00_read(di, BQ27500_REG_SOC, &rsoc, false); else - ret = bq27x00_read(BQ27000_REG_RSOC, &rsoc, 1, di); + ret = bq27x00_read(di, BQ27000_REG_RSOC, &rsoc, true); if (ret) { dev_err(di->dev, "error reading relative State-of-Charge\n"); return ret; @@ -196,7 +196,7 @@ static int bq27x00_battery_status(struct bq27x00_device_info *di, int status; int ret; - ret = bq27x00_read(BQ27x00_REG_FLAGS, &flags, 0, di); + ret = bq27x00_read(di, BQ27x00_REG_FLAGS, &flags, false); if (ret < 0) { dev_err(di->dev, "error reading flags\n"); return ret; @@ -230,7 +230,7 @@ static int bq27x00_battery_time(struct bq27x00_device_info *di, int reg, int tval = 0; int ret; - ret = bq27x00_read(reg, &tval, 0, di); + ret = bq27x00_read(di, reg, &tval, false); if (ret) { dev_err(di->dev, "error reading register %02x\n", reg); return ret; @@ -296,23 +296,35 @@ static int bq27x00_battery_get_property(struct power_supply *psy, return ret; } -static void bq27x00_powersupply_init(struct bq27x00_device_info *di) +static int bq27x00_powersupply_init(struct bq27x00_device_info *di) { + int ret; + di->bat.type = POWER_SUPPLY_TYPE_BATTERY; di->bat.properties = bq27x00_battery_props; di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props); di->bat.get_property = bq27x00_battery_get_property; di->bat.external_power_changed = NULL; + + ret = power_supply_register(di->dev, &di->bat); + if (ret) { + dev_err(di->dev, "failed to register battery: %d\n", ret); + return ret; + } + + dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION); + + return 0; } /* * i2c specific code */ -static int bq27x00_read_i2c(u8 reg, int *rt_value, int b_single, - struct bq27x00_device_info *di) +static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, + int *rt_value, bool single) { - struct i2c_client *client = di->client; + struct i2c_client *client = to_i2c_client(di->dev); struct i2c_msg msg[1]; unsigned char data[2]; int err; @@ -329,7 +341,7 @@ static int bq27x00_read_i2c(u8 reg, int *rt_value, int b_single, err = i2c_transfer(client->adapter, msg, 1); if (err >= 0) { - if (!b_single) + if (!single) msg->len = 2; else msg->len = 1; @@ -337,7 +349,7 @@ static int bq27x00_read_i2c(u8 reg, int *rt_value, int b_single, msg->flags = I2C_M_RD; err = i2c_transfer(client->adapter, msg, 1); if (err >= 0) { - if (!b_single) + if (!single) *rt_value = get_unaligned_le16(data); else *rt_value = data[0]; @@ -353,7 +365,6 @@ static int bq27x00_battery_probe(struct i2c_client *client, { char *name; struct bq27x00_device_info *di; - struct bq27x00_access_methods *bus; int num; int retval = 0; @@ -380,38 +391,20 @@ static int bq27x00_battery_probe(struct i2c_client *client, retval = -ENOMEM; goto batt_failed_2; } + di->id = num; + di->dev = &client->dev; di->chip = id->driver_data; + di->bat.name = name; + di->bus.read = &bq27x00_read_i2c; - bus = kzalloc(sizeof(*bus), GFP_KERNEL); - if (!bus) { - dev_err(&client->dev, "failed to allocate access method " - "data\n"); - retval = -ENOMEM; + if (bq27x00_powersupply_init(di)) goto batt_failed_3; - } i2c_set_clientdata(client, di); - di->dev = &client->dev; - di->bat.name = name; - bus->read = &bq27x00_read_i2c; - di->bus = bus; - di->client = client; - - bq27x00_powersupply_init(di); - - retval = power_supply_register(&client->dev, &di->bat); - if (retval) { - dev_err(&client->dev, "failed to register battery\n"); - goto batt_failed_4; - } - - dev_info(&client->dev, "support ver. %s enabled\n", DRIVER_VERSION); return 0; -batt_failed_4: - kfree(bus); batt_failed_3: kfree(di); batt_failed_2: @@ -430,7 +423,6 @@ static int bq27x00_battery_remove(struct i2c_client *client) power_supply_unregister(&di->bat); - kfree(di->bus); kfree(di->bat.name); mutex_lock(&battery_mutex); -- cgit v1.2.3 From 7fb7ba588c0f276609609565b21fcc853284a9a0 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Mon, 24 May 2010 19:55:27 +0200 Subject: bq27x00: Add bq27000 support This patch adds support for the bq27000 battery to the bq27x00 driver. The bq27000 is similar to the bq27200 except that it uses the HDQ bus instead of I2C to communicate with the host system. The driver is implemented as a platform driver. The driver expects to be provided with a read callback function through its platform data. The read function is assumed to do the lowlevel HDQ handling and read out the value of a certain register. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/Kconfig | 14 +++ drivers/power/bq27x00_battery.c | 184 +++++++++++++++++++++++++++++++--- include/linux/power/bq27x00_battery.h | 19 ++++ 3 files changed, 202 insertions(+), 15 deletions(-) create mode 100644 include/linux/power/bq27x00_battery.h diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 61bf5d724139..52a462fc6b84 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -117,10 +117,24 @@ config BATTERY_BQ20Z75 config BATTERY_BQ27x00 tristate "BQ27x00 battery driver" + help + Say Y here to enable support for batteries with BQ27x00 (I2C/HDQ) chips. + +config BATTERY_BQ27X00_I2C + bool "BQ27200/BQ27500 support" + depends on BATTERY_BQ27x00 depends on I2C + default y help Say Y here to enable support for batteries with BQ27x00 (I2C) chips. +config BATTERY_BQ27X00_PLATFORM + bool "BQ27000 support" + depends on BATTERY_BQ27x00 + default y + help + Say Y here to enable support for batteries with BQ27000 (HDQ) chips. + config BATTERY_DA9030 tristate "DA9030 battery driver" depends on PMIC_DA903X diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index def951d8fc2b..44bc76be0780 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -3,6 +3,7 @@ * * Copyright (C) 2008 Rodolfo Giometti <giometti@linux.it> * Copyright (C) 2008 Eurotech S.p.A. <info@eurotech.it> + * Copyright (C) 2010-2011 Lars-Peter Clausen <lars@metafoo.de> * * Based on a previous work by Copyright (C) 2008 Texas Instruments, Inc. * @@ -27,6 +28,8 @@ #include <linux/slab.h> #include <asm/unaligned.h> +#include <linux/power/bq27x00_battery.h> + #define DRIVER_VERSION "1.1.0" #define BQ27x00_REG_TEMP 0x06 @@ -46,12 +49,6 @@ #define BQ27000_RS 20 /* Resistor sense */ -/* If the system has several batteries we need a different name for each - * of them... - */ -static DEFINE_IDR(battery_id); -static DEFINE_MUTEX(battery_mutex); - struct bq27x00_device_info; struct bq27x00_access_methods { int (*read)(struct bq27x00_device_info *, u8 reg, int *rt_value, @@ -317,9 +314,15 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di) return 0; } -/* - * i2c specific code + +/* i2c specific code */ +#ifdef CONFIG_BATTERY_BQ27X00_I2C + +/* If the system has several batteries we need a different name for each + * of them... */ +static DEFINE_IDR(battery_id); +static DEFINE_MUTEX(battery_mutex); static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, int *rt_value, bool single) @@ -434,10 +437,6 @@ static int bq27x00_battery_remove(struct i2c_client *client) return 0; } -/* - * Module stuff - */ - static const struct i2c_device_id bq27x00_id[] = { { "bq27200", BQ27000 }, /* bq27200 is same as bq27000, but with i2c */ { "bq27500", BQ27500 }, @@ -453,13 +452,167 @@ static struct i2c_driver bq27x00_battery_driver = { .id_table = bq27x00_id, }; +static inline int bq27x00_battery_i2c_init(void) +{ + int ret = i2c_add_driver(&bq27x00_battery_driver); + if (ret) + printk(KERN_ERR "Unable to register BQ27x00 i2c driver\n"); + + return ret; +} + +static inline void bq27x00_battery_i2c_exit(void) +{ + i2c_del_driver(&bq27x00_battery_driver); +} + +#else + +static inline int bq27x00_battery_i2c_init(void) { return 0; } +static inline void bq27x00_battery_i2c_exit(void) {}; + +#endif + +/* platform specific code */ +#ifdef CONFIG_BATTERY_BQ27X00_PLATFORM + +static int bq27000_read_platform(struct bq27x00_device_info *di, u8 reg, + int *rt_value, bool single) +{ + struct device *dev = di->dev; + struct bq27000_platform_data *pdata = dev->platform_data; + unsigned int timeout = 3; + int upper, lower; + int temp; + + if (!single) { + /* Make sure the value has not changed in between reading the + * lower and the upper part */ + upper = pdata->read(dev, reg + 1); + do { + temp = upper; + if (upper < 0) + return upper; + + lower = pdata->read(dev, reg); + if (lower < 0) + return lower; + + upper = pdata->read(dev, reg + 1); + } while (temp != upper && --timeout); + + if (timeout == 0) + return -EIO; + + *rt_value = (upper << 8) | lower; + } else { + lower = pdata->read(dev, reg); + if (lower < 0) + return lower; + *rt_value = lower; + } + return 0; +} + +static int __devinit bq27000_battery_probe(struct platform_device *pdev) +{ + struct bq27x00_device_info *di; + struct bq27000_platform_data *pdata = pdev->dev.platform_data; + int ret; + + if (!pdata) { + dev_err(&pdev->dev, "no platform_data supplied\n"); + return -EINVAL; + } + + if (!pdata->read) { + dev_err(&pdev->dev, "no hdq read callback supplied\n"); + return -EINVAL; + } + + di = kzalloc(sizeof(*di), GFP_KERNEL); + if (!di) { + dev_err(&pdev->dev, "failed to allocate device info data\n"); + return -ENOMEM; + } + + platform_set_drvdata(pdev, di); + + di->dev = &pdev->dev; + di->chip = BQ27000; + + di->bat.name = pdata->name ?: dev_name(&pdev->dev); + di->bus.read = &bq27000_read_platform; + + ret = bq27x00_powersupply_init(di); + if (ret) + goto err_free; + + return 0; + +err_free: + platform_set_drvdata(pdev, NULL); + kfree(di); + + return ret; +} + +static int __devexit bq27000_battery_remove(struct platform_device *pdev) +{ + struct bq27x00_device_info *di = platform_get_drvdata(pdev); + + power_supply_unregister(&di->bat); + platform_set_drvdata(pdev, NULL); + kfree(di); + + return 0; +} + +static struct platform_driver bq27000_battery_driver = { + .probe = bq27000_battery_probe, + .remove = __devexit_p(bq27000_battery_remove), + .driver = { + .name = "bq27000-battery", + .owner = THIS_MODULE, + }, +}; + +static inline int bq27x00_battery_platform_init(void) +{ + int ret = platform_driver_register(&bq27000_battery_driver); + if (ret) + printk(KERN_ERR "Unable to register BQ27000 platform driver\n"); + + return ret; +} + +static inline void bq27x00_battery_platform_exit(void) +{ + platform_driver_unregister(&bq27000_battery_driver); +} + +#else + +static inline int bq27x00_battery_platform_init(void) { return 0; } +static inline void bq27x00_battery_platform_exit(void) {}; + +#endif + +/* + * Module stuff + */ + static int __init bq27x00_battery_init(void) { int ret; - ret = i2c_add_driver(&bq27x00_battery_driver); + ret = bq27x00_battery_i2c_init(); + if (ret) + return ret; + + ret = bq27x00_battery_platform_init(); if (ret) - printk(KERN_ERR "Unable to register BQ27x00 driver\n"); + bq27x00_battery_i2c_exit(); return ret; } @@ -467,7 +620,8 @@ module_init(bq27x00_battery_init); static void __exit bq27x00_battery_exit(void) { - i2c_del_driver(&bq27x00_battery_driver); + bq27x00_battery_platform_exit(); + bq27x00_battery_i2c_exit(); } module_exit(bq27x00_battery_exit); diff --git a/include/linux/power/bq27x00_battery.h b/include/linux/power/bq27x00_battery.h new file mode 100644 index 000000000000..a857f719bf40 --- /dev/null +++ b/include/linux/power/bq27x00_battery.h @@ -0,0 +1,19 @@ +#ifndef __LINUX_BQ27X00_BATTERY_H__ +#define __LINUX_BQ27X00_BATTERY_H__ + +/** + * struct bq27000_plaform_data - Platform data for bq27000 devices + * @name: Name of the battery. If NULL the driver will fallback to "bq27000". + * @read: HDQ read callback. + * This function should provide access to the HDQ bus the battery is + * connected to. + * The first parameter is a pointer to the battery device, the second the + * register to be read. The return value should either be the content of + * the passed register or an error value. + */ +struct bq27000_platform_data { + const char *name; + int (*read)(struct device *dev, unsigned int); +}; + +#endif -- cgit v1.2.3 From 297a533b3e621be520d44d8baf3bb72ce15c4110 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Fri, 7 Jan 2011 20:12:47 +0100 Subject: bq27x00: Cache battery registers This patch adds a register cache to the bq27x00 battery driver. Usually multiple, if not all, power_supply properties are queried at once, for example when an uevent is generated. Since some registers are used by multiple properties caching the registers should reduce the number of reads. The cache is valid for 5 seconds this roughly matches the internal update interval of the current register for the bq27000/bq27200. Fast changing properties(*_NOW) which can be obtained by reading a single register are not cached. It will also be used in the follow up patch to check if the battery status has been changed since the last update to emit power_supply_changed events. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 271 ++++++++++++++++++++++------------------ 1 file changed, 150 insertions(+), 121 deletions(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 44bc76be0780..dbe3fcb3b0ba 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -51,17 +51,30 @@ struct bq27x00_device_info; struct bq27x00_access_methods { - int (*read)(struct bq27x00_device_info *, u8 reg, int *rt_value, - bool single); + int (*read)(struct bq27x00_device_info *di, u8 reg, bool single); }; enum bq27x00_chip { BQ27000, BQ27500 }; +struct bq27x00_reg_cache { + int temperature; + int time_to_empty; + int time_to_empty_avg; + int time_to_full; + int capacity; + int flags; + + int current_now; +}; + struct bq27x00_device_info { struct device *dev; int id; enum bq27x00_chip chip; + struct bq27x00_reg_cache cache; + unsigned long last_update; + struct power_supply bat; struct bq27x00_access_methods bus; @@ -85,48 +98,93 @@ static enum power_supply_property bq27x00_battery_props[] = { */ static inline int bq27x00_read(struct bq27x00_device_info *di, u8 reg, - int *rt_value, bool single) + bool single) { - return di->bus.read(di, reg, rt_value, single); + return di->bus.read(di, reg, single); } /* - * Return the battery temperature in tenths of degree Celsius + * Return the battery Relative State-of-Charge * Or < 0 if something fails. */ -static int bq27x00_battery_temperature(struct bq27x00_device_info *di) +static int bq27x00_battery_read_rsoc(struct bq27x00_device_info *di) { - int ret; - int temp = 0; - - ret = bq27x00_read(di, BQ27x00_REG_TEMP, &temp, false); - if (ret) { - dev_err(di->dev, "error reading temperature\n"); - return ret; - } + int rsoc; if (di->chip == BQ27500) - return temp - 2731; + rsoc = bq27x00_read(di, BQ27500_REG_SOC, false); else - return ((temp * 5) - 5463) / 2; + rsoc = bq27x00_read(di, BQ27000_REG_RSOC, true); + + if (rsoc < 0) + dev_err(di->dev, "error reading relative State-of-Charge\n"); + + return rsoc; } /* - * Return the battery Voltage in milivolts - * Or < 0 if something fails. + * Read a time register. + * Return < 0 if something fails. */ -static int bq27x00_battery_voltage(struct bq27x00_device_info *di) +static int bq27x00_battery_read_time(struct bq27x00_device_info *di, u8 reg) { - int ret; - int volt = 0; + int tval; - ret = bq27x00_read(di, BQ27x00_REG_VOLT, &volt, false); - if (ret) { - dev_err(di->dev, "error reading voltage\n"); - return ret; + tval = bq27x00_read(di, reg, false); + if (tval < 0) { + dev_err(di->dev, "error reading register %02x: %d\n", reg, tval); + return tval; } - return volt * 1000; + if (tval == 65535) + return -ENODATA; + + return tval * 60; +} + +static void bq27x00_update(struct bq27x00_device_info *di) +{ + struct bq27x00_reg_cache cache = {0, }; + bool is_bq27500 = di->chip == BQ27500; + + cache.flags = bq27x00_read(di, BQ27x00_REG_FLAGS, is_bq27500); + if (cache.flags >= 0) { + cache.capacity = bq27x00_battery_read_rsoc(di); + cache.temperature = bq27x00_read(di, BQ27x00_REG_TEMP, false); + cache.time_to_empty = bq27x00_battery_read_time(di, BQ27x00_REG_TTE); + cache.time_to_empty_avg = bq27x00_battery_read_time(di, BQ27x00_REG_TTECP); + cache.time_to_full = bq27x00_battery_read_time(di, BQ27x00_REG_TTF); + + if (!is_bq27500) + cache.current_now = bq27x00_read(di, BQ27x00_REG_AI, false); + } + + /* Ignore current_now which is a snapshot of the current battery state + * and is likely to be different even between two consecutive reads */ + if (memcmp(&di->cache, &cache, sizeof(cache) - sizeof(int)) != 0) { + di->cache = cache; + power_supply_changed(&di->bat); + } + + di->last_update = jiffies; +} + +/* + * Return the battery temperature in tenths of degree Celsius + * Or < 0 if something fails. + */ +static int bq27x00_battery_temperature(struct bq27x00_device_info *di, + union power_supply_propval *val) +{ + if (di->cache.temperature < 0) + return di->cache.temperature; + + if (di->chip == BQ27500) + val->intval = di->cache.temperature - 2731; + else + val->intval = ((di->cache.temperature * 5) - 5463) / 2; + + return 0; } /* @@ -134,109 +192,84 @@ static int bq27x00_battery_voltage(struct bq27x00_device_info *di) * Note that current can be negative signed as well * Or 0 if something fails. */ -static int bq27x00_battery_current(struct bq27x00_device_info *di) +static int bq27x00_battery_current(struct bq27x00_device_info *di, + union power_supply_propval *val) { - int ret; - int curr = 0; - int flags = 0; + int curr; - ret = bq27x00_read(di, BQ27x00_REG_AI, &curr, false); - if (ret) { - dev_err(di->dev, "error reading current\n"); - return 0; - } + if (di->chip == BQ27500) + curr = bq27x00_read(di, BQ27x00_REG_AI, false); + else + curr = di->cache.current_now; + + if (curr < 0) + return curr; if (di->chip == BQ27500) { /* bq27500 returns signed value */ - curr = (int)((s16)curr) * 1000; + val->intval = (int)((s16)curr) * 1000; } else { - ret = bq27x00_read(di, BQ27x00_REG_FLAGS, &flags, false); - if (ret < 0) { - dev_err(di->dev, "error reading flags\n"); - return 0; - } - if (flags & BQ27000_FLAG_CHGS) { + if (di->cache.flags & BQ27000_FLAG_CHGS) { dev_dbg(di->dev, "negative current!\n"); curr = -curr; } - curr = curr * 3570 / BQ27000_RS; - } - - return curr; -} - -/* - * Return the battery Relative State-of-Charge - * Or < 0 if something fails. - */ -static int bq27x00_battery_rsoc(struct bq27x00_device_info *di) -{ - int ret; - int rsoc = 0; - if (di->chip == BQ27500) - ret = bq27x00_read(di, BQ27500_REG_SOC, &rsoc, false); - else - ret = bq27x00_read(di, BQ27000_REG_RSOC, &rsoc, true); - if (ret) { - dev_err(di->dev, "error reading relative State-of-Charge\n"); - return ret; + val->intval = curr * 3570 / BQ27000_RS; } - return rsoc; + return 0; } static int bq27x00_battery_status(struct bq27x00_device_info *di, - union power_supply_propval *val) + union power_supply_propval *val) { - int flags = 0; int status; - int ret; - - ret = bq27x00_read(di, BQ27x00_REG_FLAGS, &flags, false); - if (ret < 0) { - dev_err(di->dev, "error reading flags\n"); - return ret; - } if (di->chip == BQ27500) { - if (flags & BQ27500_FLAG_FC) + if (di->cache.flags & BQ27500_FLAG_FC) status = POWER_SUPPLY_STATUS_FULL; - else if (flags & BQ27500_FLAG_DSC) + else if (di->cache.flags & BQ27500_FLAG_DSC) status = POWER_SUPPLY_STATUS_DISCHARGING; else status = POWER_SUPPLY_STATUS_CHARGING; } else { - if (flags & BQ27000_FLAG_CHGS) + if (di->cache.flags & BQ27000_FLAG_CHGS) status = POWER_SUPPLY_STATUS_CHARGING; else status = POWER_SUPPLY_STATUS_DISCHARGING; } val->intval = status; + return 0; } /* - * Read a time register. - * Return < 0 if something fails. + * Return the battery Voltage in milivolts + * Or < 0 if something fails. */ -static int bq27x00_battery_time(struct bq27x00_device_info *di, int reg, - union power_supply_propval *val) +static int bq27x00_battery_voltage(struct bq27x00_device_info *di, + union power_supply_propval *val) { - int tval = 0; - int ret; + int volt; - ret = bq27x00_read(di, reg, &tval, false); - if (ret) { - dev_err(di->dev, "error reading register %02x\n", reg); - return ret; - } + volt = bq27x00_read(di, BQ27x00_REG_VOLT, false); + if (volt < 0) + return volt; - if (tval == 65535) - return -ENODATA; + val->intval = volt * 1000; + + return 0; +} + +static int bq27x00_simple_value(int value, + union power_supply_propval *val) +{ + if (value < 0) + return value; + + val->intval = value; - val->intval = tval * 60; return 0; } @@ -249,9 +282,11 @@ static int bq27x00_battery_get_property(struct power_supply *psy, { int ret = 0; struct bq27x00_device_info *di = to_bq27x00_device_info(psy); - int voltage = bq27x00_battery_voltage(di); - if (psp != POWER_SUPPLY_PROP_PRESENT && voltage <= 0) + if (time_is_before_jiffies(di->last_update + 5 * HZ)) + bq27x00_update(di); + + if (psp != POWER_SUPPLY_PROP_PRESENT && di->cache.flags < 0) return -ENODEV; switch (psp) { @@ -259,29 +294,28 @@ static int bq27x00_battery_get_property(struct power_supply *psy, ret = bq27x00_battery_status(di, val); break; case POWER_SUPPLY_PROP_VOLTAGE_NOW: - val->intval = voltage; + ret = bq27x00_battery_voltage(di, val); break; case POWER_SUPPLY_PROP_PRESENT: - if (psp == POWER_SUPPLY_PROP_PRESENT) - val->intval = voltage <= 0 ? 0 : 1; + val->intval = di->cache.flags < 0 ? 0 : 1; break; case POWER_SUPPLY_PROP_CURRENT_NOW: - val->intval = bq27x00_battery_current(di); + ret = bq27x00_battery_current(di, val); break; case POWER_SUPPLY_PROP_CAPACITY: - val->intval = bq27x00_battery_rsoc(di); + ret = bq27x00_simple_value(di->cache.capacity, val); break; case POWER_SUPPLY_PROP_TEMP: - val->intval = bq27x00_battery_temperature(di); + ret = bq27x00_battery_temperature(di, val); break; case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW: - ret = bq27x00_battery_time(di, BQ27x00_REG_TTE, val); + ret = bq27x00_simple_value(di->cache.time_to_empty, val); break; case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: - ret = bq27x00_battery_time(di, BQ27x00_REG_TTECP, val); + ret = bq27x00_simple_value(di->cache.time_to_empty_avg, val); break; case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW: - ret = bq27x00_battery_time(di, BQ27x00_REG_TTF, val); + ret = bq27x00_simple_value(di->cache.time_to_full, val); break; case POWER_SUPPLY_PROP_TECHNOLOGY: val->intval = POWER_SUPPLY_TECHNOLOGY_LION; @@ -311,6 +345,8 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di) dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION); + bq27x00_update(di); + return 0; } @@ -324,13 +360,12 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di) static DEFINE_IDR(battery_id); static DEFINE_MUTEX(battery_mutex); -static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, - int *rt_value, bool single) +static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, bool single) { struct i2c_client *client = to_i2c_client(di->dev); struct i2c_msg msg[1]; unsigned char data[2]; - int err; + int ret; if (!client->adapter) return -ENODEV; @@ -341,26 +376,24 @@ static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, msg->buf = data; data[0] = reg; - err = i2c_transfer(client->adapter, msg, 1); + ret = i2c_transfer(client->adapter, msg, 1); - if (err >= 0) { + if (ret >= 0) { if (!single) msg->len = 2; else msg->len = 1; msg->flags = I2C_M_RD; - err = i2c_transfer(client->adapter, msg, 1); - if (err >= 0) { + ret = i2c_transfer(client->adapter, msg, 1); + if (ret >= 0) { if (!single) - *rt_value = get_unaligned_le16(data); + ret = get_unaligned_le16(data); else - *rt_value = data[0]; - - return 0; + ret = data[0]; } } - return err; + return ret; } static int bq27x00_battery_probe(struct i2c_client *client, @@ -477,7 +510,7 @@ static inline void bq27x00_battery_i2c_exit(void) {}; #ifdef CONFIG_BATTERY_BQ27X00_PLATFORM static int bq27000_read_platform(struct bq27x00_device_info *di, u8 reg, - int *rt_value, bool single) + bool single) { struct device *dev = di->dev; struct bq27000_platform_data *pdata = dev->platform_data; @@ -504,14 +537,10 @@ static int bq27000_read_platform(struct bq27x00_device_info *di, u8 reg, if (timeout == 0) return -EIO; - *rt_value = (upper << 8) | lower; - } else { - lower = pdata->read(dev, reg); - if (lower < 0) - return lower; - *rt_value = lower; + return (upper << 8) | lower; } - return 0; + + return pdata->read(dev, reg); } static int __devinit bq27000_battery_probe(struct platform_device *pdev) -- cgit v1.2.3 From 740b755a3b3433f5ee5f9ef54de5d1b4c08223cc Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Fri, 7 Jan 2011 20:14:53 +0100 Subject: bq27x00: Poll battery state This patch adds support for polling the battery state and generating a power_supply_changed() event if it has changed. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 58 +++++++++++++++++++++++++++++++++++++---- 1 file changed, 53 insertions(+), 5 deletions(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index dbe3fcb3b0ba..25350fcbadb3 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -74,10 +74,13 @@ struct bq27x00_device_info { struct bq27x00_reg_cache cache; unsigned long last_update; + struct delayed_work work; struct power_supply bat; struct bq27x00_access_methods bus; + + struct mutex lock; }; static enum power_supply_property bq27x00_battery_props[] = { @@ -93,6 +96,11 @@ static enum power_supply_property bq27x00_battery_props[] = { POWER_SUPPLY_PROP_TECHNOLOGY, }; +static unsigned int poll_interval = 360; +module_param(poll_interval, uint, 0644); +MODULE_PARM_DESC(poll_interval, "battery poll interval in seconds - " \ + "0 disables polling"); + /* * Common code for BQ27x00 devices */ @@ -169,6 +177,21 @@ static void bq27x00_update(struct bq27x00_device_info *di) di->last_update = jiffies; } +static void bq27x00_battery_poll(struct work_struct *work) +{ + struct bq27x00_device_info *di = + container_of(work, struct bq27x00_device_info, work.work); + + bq27x00_update(di); + + if (poll_interval > 0) { + /* The timer does not have to be accurate. */ + set_timer_slack(&di->work.timer, poll_interval * HZ / 4); + schedule_delayed_work(&di->work, poll_interval * HZ); + } +} + + /* * Return the battery temperature in tenths of degree Celsius * Or < 0 if something fails. @@ -283,8 +306,12 @@ static int bq27x00_battery_get_property(struct power_supply *psy, int ret = 0; struct bq27x00_device_info *di = to_bq27x00_device_info(psy); - if (time_is_before_jiffies(di->last_update + 5 * HZ)) - bq27x00_update(di); + mutex_lock(&di->lock); + if (time_is_before_jiffies(di->last_update + 5 * HZ)) { + cancel_delayed_work_sync(&di->work); + bq27x00_battery_poll(&di->work.work); + } + mutex_unlock(&di->lock); if (psp != POWER_SUPPLY_PROP_PRESENT && di->cache.flags < 0) return -ENODEV; @@ -327,6 +354,14 @@ static int bq27x00_battery_get_property(struct power_supply *psy, return ret; } +static void bq27x00_external_power_changed(struct power_supply *psy) +{ + struct bq27x00_device_info *di = to_bq27x00_device_info(psy); + + cancel_delayed_work_sync(&di->work); + schedule_delayed_work(&di->work, 0); +} + static int bq27x00_powersupply_init(struct bq27x00_device_info *di) { int ret; @@ -335,7 +370,10 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di) di->bat.properties = bq27x00_battery_props; di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props); di->bat.get_property = bq27x00_battery_get_property; - di->bat.external_power_changed = NULL; + di->bat.external_power_changed = bq27x00_external_power_changed; + + INIT_DELAYED_WORK(&di->work, bq27x00_battery_poll); + mutex_init(&di->lock); ret = power_supply_register(di->dev, &di->bat); if (ret) { @@ -350,6 +388,15 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di) return 0; } +static void bq27x00_powersupply_unregister(struct bq27x00_device_info *di) +{ + cancel_delayed_work_sync(&di->work); + + power_supply_unregister(&di->bat); + + mutex_destroy(&di->lock); +} + /* i2c specific code */ #ifdef CONFIG_BATTERY_BQ27X00_I2C @@ -457,7 +504,7 @@ static int bq27x00_battery_remove(struct i2c_client *client) { struct bq27x00_device_info *di = i2c_get_clientdata(client); - power_supply_unregister(&di->bat); + bq27x00_powersupply_unregister(di); kfree(di->bat.name); @@ -590,7 +637,8 @@ static int __devexit bq27000_battery_remove(struct platform_device *pdev) { struct bq27x00_device_info *di = platform_get_drvdata(pdev); - power_supply_unregister(&di->bat); + bq27x00_powersupply_unregister(di); + platform_set_drvdata(pdev, NULL); kfree(di); -- cgit v1.2.3 From 631c17ee5daf0ca73688cb5e5216fc0e3e340483 Mon Sep 17 00:00:00 2001 From: Pali Rohár <pali.rohar@gmail.com> Date: Tue, 1 Feb 2011 00:08:02 +0100 Subject: bq27x00: Add new properties MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch add support for reporting properties POWER_SUPPLY_PROP_CHARGE_NOW, POWER_SUPPLY_PROP_CHARGE_FULL, POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, POWER_SUPPLY_PROP_CHARGE_COUNTER, POWER_SUPPLY_PROP_ENERGY_NOW in module bq27x00_battery. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 152 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 151 insertions(+), 1 deletion(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 25350fcbadb3..a1bd1ff753b3 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -16,6 +16,13 @@ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. * */ + +/* + * Datasheets: + * http://focus.ti.com/docs/prod/folders/print/bq27000.html + * http://focus.ti.com/docs/prod/folders/print/bq27500.html + */ + #include <linux/module.h> #include <linux/param.h> #include <linux/jiffies.h> @@ -30,7 +37,7 @@ #include <linux/power/bq27x00_battery.h> -#define DRIVER_VERSION "1.1.0" +#define DRIVER_VERSION "1.2.0" #define BQ27x00_REG_TEMP 0x06 #define BQ27x00_REG_VOLT 0x08 @@ -39,11 +46,17 @@ #define BQ27x00_REG_TTE 0x16 #define BQ27x00_REG_TTF 0x18 #define BQ27x00_REG_TTECP 0x26 +#define BQ27x00_REG_NAC 0x0C /* Nominal available capaciy */ +#define BQ27x00_REG_LMD 0x12 /* Last measured discharge */ +#define BQ27x00_REG_CYCT 0x2A /* Cycle count total */ +#define BQ27x00_REG_AE 0x22 /* Available enery */ #define BQ27000_REG_RSOC 0x0B /* Relative State-of-Charge */ +#define BQ27000_REG_ILMD 0x76 /* Initial last measured discharge */ #define BQ27000_FLAG_CHGS BIT(7) #define BQ27500_REG_SOC 0x2c +#define BQ27500_REG_DCAP 0x3C /* Design capacity */ #define BQ27500_FLAG_DSC BIT(0) #define BQ27500_FLAG_FC BIT(9) @@ -61,6 +74,8 @@ struct bq27x00_reg_cache { int time_to_empty; int time_to_empty_avg; int time_to_full; + int charge_full; + int charge_counter; int capacity; int flags; @@ -73,6 +88,8 @@ struct bq27x00_device_info { enum bq27x00_chip chip; struct bq27x00_reg_cache cache; + int charge_design_full; + unsigned long last_update; struct delayed_work work; @@ -94,6 +111,11 @@ static enum power_supply_property bq27x00_battery_props[] = { POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_CHARGE_FULL, + POWER_SUPPLY_PROP_CHARGE_NOW, + POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, + POWER_SUPPLY_PROP_CHARGE_COUNTER, + POWER_SUPPLY_PROP_ENERGY_NOW, }; static unsigned int poll_interval = 360; @@ -130,6 +152,87 @@ static int bq27x00_battery_read_rsoc(struct bq27x00_device_info *di) return rsoc; } +/* + * Return a battery charge value in µAh + * Or < 0 if something fails. + */ +static int bq27x00_battery_read_charge(struct bq27x00_device_info *di, u8 reg) +{ + int charge; + + charge = bq27x00_read(di, reg, false); + if (charge < 0) { + dev_err(di->dev, "error reading nominal available capacity\n"); + return charge; + } + + if (di->chip == BQ27500) + charge *= 1000; + else + charge = charge * 3570 / BQ27000_RS; + + return charge; +} + +/* + * Return the battery Nominal available capaciy in µAh + * Or < 0 if something fails. + */ +static inline int bq27x00_battery_read_nac(struct bq27x00_device_info *di) +{ + return bq27x00_battery_read_charge(di, BQ27x00_REG_NAC); +} + +/* + * Return the battery Last measured discharge in µAh + * Or < 0 if something fails. + */ +static inline int bq27x00_battery_read_lmd(struct bq27x00_device_info *di) +{ + return bq27x00_battery_read_charge(di, BQ27x00_REG_LMD); +} + +/* + * Return the battery Initial last measured discharge in µAh + * Or < 0 if something fails. + */ +static int bq27x00_battery_read_ilmd(struct bq27x00_device_info *di) +{ + int ilmd; + + if (di->chip == BQ27500) + ilmd = bq27x00_read(di, BQ27500_REG_DCAP, false); + else + ilmd = bq27x00_read(di, BQ27000_REG_ILMD, true); + + if (ilmd < 0) { + dev_err(di->dev, "error reading initial last measured discharge\n"); + return ilmd; + } + + if (di->chip == BQ27500) + ilmd *= 1000; + else + ilmd = ilmd * 256 * 3570 / BQ27000_RS; + + return ilmd; +} + +/* + * Return the battery Cycle count total + * Or < 0 if something fails. + */ +static int bq27x00_battery_read_cyct(struct bq27x00_device_info *di) +{ + int cyct; + + cyct = bq27x00_read(di, BQ27x00_REG_CYCT, false); + if (cyct < 0) + dev_err(di->dev, "error reading cycle count total\n"); + + return cyct; +} + /* * Read a time register. * Return < 0 if something fails. @@ -162,9 +265,15 @@ static void bq27x00_update(struct bq27x00_device_info *di) cache.time_to_empty = bq27x00_battery_read_time(di, BQ27x00_REG_TTE); cache.time_to_empty_avg = bq27x00_battery_read_time(di, BQ27x00_REG_TTECP); cache.time_to_full = bq27x00_battery_read_time(di, BQ27x00_REG_TTF); + cache.charge_full = bq27x00_battery_read_lmd(di); + cache.charge_counter = bq27x00_battery_read_cyct(di); if (!is_bq27500) cache.current_now = bq27x00_read(di, BQ27x00_REG_AI, false); + + /* We only have to read charge design full once */ + if (di->charge_design_full <= 0) + di->charge_design_full = bq27x00_battery_read_ilmd(di); } /* Ignore current_now which is a snapshot of the current battery state @@ -285,6 +394,32 @@ static int bq27x00_battery_voltage(struct bq27x00_device_info *di, return 0; } +/* + * Return the battery Available energy in µWh + * Or < 0 if something fails. + */ +static int bq27x00_battery_energy(struct bq27x00_device_info *di, + union power_supply_propval *val) +{ + int ae; + + ae = bq27x00_read(di, BQ27x00_REG_AE, false); + if (ae < 0) { + dev_err(di->dev, "error reading available energy\n"); + return ae; + } + + if (di->chip == BQ27500) + ae *= 1000; + else + ae = ae * 29200 / BQ27000_RS; + + val->intval = ae; + + return 0; +} + + static int bq27x00_simple_value(int value, union power_supply_propval *val) { @@ -347,6 +482,21 @@ static int bq27x00_battery_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_TECHNOLOGY: val->intval = POWER_SUPPLY_TECHNOLOGY_LION; break; + case POWER_SUPPLY_PROP_CHARGE_NOW: + ret = bq27x00_simple_value(bq27x00_battery_read_nac(di), val); + break; + case POWER_SUPPLY_PROP_CHARGE_FULL: + ret = bq27x00_simple_value(di->cache.charge_full, val); + break; + case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: + ret = bq27x00_simple_value(di->charge_design_full, val); + break; + case POWER_SUPPLY_PROP_CHARGE_COUNTER: + ret = bq27x00_simple_value(di->cache.charge_counter, val); + break; + case POWER_SUPPLY_PROP_ENERGY_NOW: + ret = bq27x00_battery_energy(di, val); + break; default: return -EINVAL; } -- cgit v1.2.3 From fd9b958c5525024204e7e2c48fe5eae560d171bd Mon Sep 17 00:00:00 2001 From: Pali Rohár <pali.rohar@gmail.com> Date: Tue, 1 Feb 2011 00:10:41 +0100 Subject: bq27x00: Add MODULE_DEVICE_TABLE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds MODULE_DEVICE_TABLE for module bq27x00_battery. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Tested-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index a1bd1ff753b3..0e99d02dea33 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -672,6 +672,7 @@ static const struct i2c_device_id bq27x00_id[] = { { "bq27500", BQ27500 }, {}, }; +MODULE_DEVICE_TABLE(i2c, bq27x00_id); static struct i2c_driver bq27x00_battery_driver = { .driver = { -- cgit v1.2.3 From c1b9ab67e7c7021be9d0db6345d6ccc5d70248f1 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Sat, 18 Sep 2010 17:31:16 +0200 Subject: bq27x00: Give more specific reports on battery status The current code only reports whether the battery is charging or discharging. But the battery also reports whether it is fully charged, furthermore by look at if the battery is supplied we can tell whether it is discharging or not charging. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Rodolfo Giometti <giometti@linux.it> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 0e99d02dea33..003be5f1c785 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -54,6 +54,7 @@ #define BQ27000_REG_RSOC 0x0B /* Relative State-of-Charge */ #define BQ27000_REG_ILMD 0x76 /* Initial last measured discharge */ #define BQ27000_FLAG_CHGS BIT(7) +#define BQ27000_FLAG_FC BIT(5) #define BQ27500_REG_SOC 0x2c #define BQ27500_REG_DCAP 0x3C /* Design capacity */ @@ -365,8 +366,12 @@ static int bq27x00_battery_status(struct bq27x00_device_info *di, else status = POWER_SUPPLY_STATUS_CHARGING; } else { - if (di->cache.flags & BQ27000_FLAG_CHGS) + if (di->cache.flags & BQ27000_FLAG_FC) + status = POWER_SUPPLY_STATUS_FULL; + else if (di->cache.flags & BQ27000_FLAG_CHGS) status = POWER_SUPPLY_STATUS_CHARGING; + else if (power_supply_am_i_supplied(&di->bat)) + status = POWER_SUPPLY_STATUS_NOT_CHARGING; else status = POWER_SUPPLY_STATUS_DISCHARGING; } -- cgit v1.2.3 From bf7d4140450f6dbc019a8831223e08d778f90dd7 Mon Sep 17 00:00:00 2001 From: Pali Rohár <pali.rohar@gmail.com> Date: Tue, 1 Feb 2011 00:23:13 +0100 Subject: bq27x00: Minor cleanups MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * Consistently use uppercase for hexadecimal values. * Clarify/fix the unit of functions return value in its comment. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 003be5f1c785..b44555f1b633 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -56,7 +56,7 @@ #define BQ27000_FLAG_CHGS BIT(7) #define BQ27000_FLAG_FC BIT(5) -#define BQ27500_REG_SOC 0x2c +#define BQ27500_REG_SOC 0x2C #define BQ27500_REG_DCAP 0x3C /* Design capacity */ #define BQ27500_FLAG_DSC BIT(0) #define BQ27500_FLAG_FC BIT(9) @@ -321,7 +321,7 @@ static int bq27x00_battery_temperature(struct bq27x00_device_info *di, } /* - * Return the battery average current + * Return the battery average current in µA * Note that current can be negative signed as well * Or 0 if something fails. */ -- cgit v1.2.3 From 2ec523a8238a117b082ca6b0cef3b9ae812364f9 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Wed, 2 Feb 2011 19:35:07 +0100 Subject: bq27x00: Cleanup bq27x00_i2c_read Some minor stylistic cleanups. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com> --- drivers/power/bq27x00_battery.c | 45 ++++++++++++++++++++++------------------- 1 file changed, 24 insertions(+), 21 deletions(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index b44555f1b633..740a0ac29dd1 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -565,36 +565,39 @@ static DEFINE_MUTEX(battery_mutex); static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, bool single) { struct i2c_client *client = to_i2c_client(di->dev); - struct i2c_msg msg[1]; + struct i2c_msg msg; unsigned char data[2]; int ret; if (!client->adapter) return -ENODEV; - msg->addr = client->addr; - msg->flags = 0; - msg->len = 1; - msg->buf = data; + msg.addr = client->addr; + msg.flags = 0; + msg.len = 1; + msg.buf = data; data[0] = reg; - ret = i2c_transfer(client->adapter, msg, 1); + ret = i2c_transfer(client->adapter, &msg, 1); + + if (ret < 0) + return ret; + + if (single) + msg.len = 1; + else + msg.len = 2; + + msg.flags = I2C_M_RD; + ret = i2c_transfer(client->adapter, &msg, 1); + if (ret < 0) + return ret; + + if (!single) + ret = get_unaligned_le16(data); + else + ret = data[0]; - if (ret >= 0) { - if (!single) - msg->len = 2; - else - msg->len = 1; - - msg->flags = I2C_M_RD; - ret = i2c_transfer(client->adapter, msg, 1); - if (ret >= 0) { - if (!single) - ret = get_unaligned_le16(data); - else - ret = data[0]; - } - } return ret; } -- cgit v1.2.3 From 9e912f452931b3da9d13d716a381ba0d5fb74ced Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas <notasas@gmail.com> Date: Tue, 15 Feb 2011 23:27:35 +0200 Subject: bq27x00: Use single i2c_transfer call for property read Doing this by using 2 calls sometimes results in unexpected values being returned on OMAP3 i2c controller. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> --- drivers/power/bq27x00_battery.c | 27 +++++++++++---------------- 1 file changed, 11 insertions(+), 16 deletions(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 740a0ac29dd1..59e68dbd028b 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -565,31 +565,26 @@ static DEFINE_MUTEX(battery_mutex); static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, bool single) { struct i2c_client *client = to_i2c_client(di->dev); - struct i2c_msg msg; + struct i2c_msg msg[2]; unsigned char data[2]; int ret; if (!client->adapter) return -ENODEV; - msg.addr = client->addr; - msg.flags = 0; - msg.len = 1; - msg.buf = data; - - data[0] = reg; - ret = i2c_transfer(client->adapter, &msg, 1); - - if (ret < 0) - return ret; - + msg[0].addr = client->addr; + msg[0].flags = 0; + msg[0].buf = ® + msg[0].len = sizeof(reg); + msg[1].addr = client->addr; + msg[1].flags = I2C_M_RD; + msg[1].buf = data; if (single) - msg.len = 1; + msg[1].len = 1; else - msg.len = 2; + msg[1].len = 2; - msg.flags = I2C_M_RD; - ret = i2c_transfer(client->adapter, &msg, 1); + ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg)); if (ret < 0) return ret; -- cgit v1.2.3 From 0b75a840120b1e647e32342e9cc46631410088d5 Mon Sep 17 00:00:00 2001 From: Lukas Czerner <lczerner@redhat.com> Date: Wed, 23 Feb 2011 12:22:49 -0500 Subject: ext4: mark file-local functions and variables as static Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/mballoc.c | 3 ++- fs/ext4/super.c | 6 +++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index d1fe09aea73d..ae4d7f5edbbf 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -4753,7 +4753,8 @@ static int ext4_trim_extent(struct super_block *sb, int start, int count, * bitmap. Then issue a TRIM command on this extent and free the extent in * the group buddy bitmap. This is done until whole group is scanned. */ -ext4_grpblk_t ext4_trim_all_free(struct super_block *sb, struct ext4_buddy *e4b, +static ext4_grpblk_t +ext4_trim_all_free(struct super_block *sb, struct ext4_buddy *e4b, ext4_grpblk_t start, ext4_grpblk_t max, ext4_grpblk_t minblocks) { void *bitmap; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index a1ac24b6a758..1539cf559784 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -54,9 +54,9 @@ static struct proc_dir_entry *ext4_proc_root; static struct kset *ext4_kset; -struct ext4_lazy_init *ext4_li_info; -struct mutex ext4_li_mtx; -struct ext4_features *ext4_feat; +static struct ext4_lazy_init *ext4_li_info; +static struct mutex ext4_li_mtx; +static struct ext4_features *ext4_feat; static int ext4_load_journal(struct super_block *, struct ext4_super_block *, unsigned long journal_devnum); -- cgit v1.2.3 From 4143179218960a70d821a425e3c23ce44aa93dee Mon Sep 17 00:00:00 2001 From: Lukas Czerner <lczerner@redhat.com> Date: Wed, 23 Feb 2011 12:42:32 -0500 Subject: ext4: check if device support discard in FITRIM ioctl For a device that does not support discard, the FITRIM ioctl returns -EOPNOTSUPP when blkdev_issue_discard() returns this error code, which is how the user is informed that the device does not support discard. If there are no suitable free extents to be trimmed, then FITRIM will return success even though the device does not support discard, which could confuse the user. So check explicitly if the device supports discard and return an error code at the beginning of the FITRIM ioctl processing. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/ioctl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index eb3bc2fe647e..25ba7c79d289 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -334,12 +334,16 @@ mext_out: case FITRIM: { struct super_block *sb = inode->i_sb; + struct request_queue *q = bdev_get_queue(sb->s_bdev); struct fstrim_range range; int ret = 0; if (!capable(CAP_SYS_ADMIN)) return -EPERM; + if (!blk_queue_discard(q)) + return -EOPNOTSUPP; + if (copy_from_user(&range, (struct fstrim_range *)arg, sizeof(range))) return -EFAULT; -- cgit v1.2.3 From 5c2ed62fd447e2c696e222dcf71d1322bbbc58d4 Mon Sep 17 00:00:00 2001 From: Lukas Czerner <lczerner@redhat.com> Date: Wed, 23 Feb 2011 17:49:51 -0500 Subject: ext4: Adjust minlen with discard_granularity in the FITRIM ioctl Discard granularity tells us the minimum size of extent that can be discarded by the device. If the user supplies a minimum extent that should be discarded (range.minlen) which is smaller than the discard granularity, increase minlen to the discard granularity, since there's no point submitting trim requests that the device will reject anyway. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/ioctl.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 25ba7c79d289..c052c9f0f3a1 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -348,6 +348,8 @@ mext_out: sizeof(range))) return -EFAULT; + range.minlen = max((unsigned int)range.minlen, + q->limits.discard_granularity); ret = ext4_trim_fs(sb, &range); if (ret < 0) return ret; -- cgit v1.2.3 From ea6633369458992241599c9d9ebadffaeddec164 Mon Sep 17 00:00:00 2001 From: Eric Sandeen <sandeen@redhat.com> Date: Wed, 23 Feb 2011 17:51:51 -0500 Subject: ext4: enable acls and user_xattr by default There's no good reason to require the extra step of providing a mount option for acl or user_xattr once the feature is configured on; no other filesystem that I know of requires this. Userspace patches have set these options in default mount options, and this patch makes them default in the kernel. At some point we can start to deprecate the options, perhaps. For now I've removed default mount option checks in show_options() to be explicit about what's set, since it's changing the default, but I'm open to alternatives if desired. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/super.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 1539cf559784..a665d2fb70c1 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -997,13 +997,10 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs) if (test_opt(sb, OLDALLOC)) seq_puts(seq, ",oldalloc"); #ifdef CONFIG_EXT4_FS_XATTR - if (test_opt(sb, XATTR_USER) && - !(def_mount_opts & EXT4_DEFM_XATTR_USER)) + if (test_opt(sb, XATTR_USER)) seq_puts(seq, ",user_xattr"); - if (!test_opt(sb, XATTR_USER) && - (def_mount_opts & EXT4_DEFM_XATTR_USER)) { + if (!test_opt(sb, XATTR_USER)) seq_puts(seq, ",nouser_xattr"); - } #endif #ifdef CONFIG_EXT4_FS_POSIX_ACL if (test_opt(sb, POSIX_ACL) && !(def_mount_opts & EXT4_DEFM_ACL)) @@ -3095,13 +3092,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) } if (def_mount_opts & EXT4_DEFM_UID16) set_opt(sb, NO_UID32); + /* xattr user namespace & acls are now defaulted on */ #ifdef CONFIG_EXT4_FS_XATTR - if (def_mount_opts & EXT4_DEFM_XATTR_USER) - set_opt(sb, XATTR_USER); + set_opt(sb, XATTR_USER); #endif #ifdef CONFIG_EXT4_FS_POSIX_ACL - if (def_mount_opts & EXT4_DEFM_ACL) - set_opt(sb, POSIX_ACL); + set_opt(sb, POSIX_ACL); #endif if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA) set_opt(sb, JOURNAL_DATA); -- cgit v1.2.3 From 84b775a354f640736176b5d966408fc5d5da6665 Mon Sep 17 00:00:00 2001 From: Coly Li <i@coly.li> Date: Thu, 24 Feb 2011 12:51:59 -0500 Subject: ext4: code cleanup in mb_find_buddy() Current code calculate max no matter whether order is zero, it's unnecessary. This cleanup patch sets max to "1 << (e4b->bd_blkbits + 3)" only when order == 0. Signed-off-by: Coly Li <bosong.ly@taobao.com> Cc: Alex Tomas <alex@clusterfs.com> Cc: Theodore Tso <tytso@google.com> --- fs/ext4/mballoc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index ae4d7f5edbbf..1791dd4207d5 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -432,9 +432,10 @@ static void *mb_find_buddy(struct ext4_buddy *e4b, int order, int *max) } /* at order 0 we see each particular block */ - *max = 1 << (e4b->bd_blkbits + 3); - if (order == 0) + if (order == 0) { + *max = 1 << (e4b->bd_blkbits + 3); return EXT4_MB_BITMAP(e4b); + } bb = EXT4_MB_BUDDY(e4b) + EXT4_SB(e4b->bd_sb)->s_mb_offsets[order]; *max = EXT4_SB(e4b->bd_sb)->s_mb_maxs[order]; -- cgit v1.2.3 From 235772da3e2adb1f4d71f27ec5475093dd38b2ac Mon Sep 17 00:00:00 2001 From: Coly Li <i@coly.li> Date: Thu, 24 Feb 2011 13:24:18 -0500 Subject: ext4: remove unncessary call mb_find_buddy() in debugging code In __mb_check_buddy(), look at the code below: 591 fstart = -1; 592 buddy = mb_find_buddy(e4b, 0, &max); 593 for (i = 0; i < max; i++) { 594 if (!mb_test_bit(i, buddy)) { 595 MB_CHECK_ASSERT(i >= e4b->bd_info->bb_first_free); 596 if (fstart == -1) { 597 fragments++; 598 fstart = i; 599 } 600 continue; 601 } 602 fstart = -1; 603 /* check used bits only */ 604 for (j = 0; j < e4b->bd_blkbits + 1; j++) { 605 buddy2 = mb_find_buddy(e4b, j, &max2); 606 k = i >> j; 607 MB_CHECK_ASSERT(k < max2); 608 MB_CHECK_ASSERT(mb_test_bit(k, buddy2)); 609 } 610 } 611 MB_CHECK_ASSERT(!EXT4_MB_GRP_NEED_INIT(e4b->bd_info)); 612 MB_CHECK_ASSERT(e4b->bd_info->bb_fragments == fragments); 613 614 grp = ext4_get_group_info(sb, e4b->bd_group); 615 buddy = mb_find_buddy(e4b, 0, &max); On line 592, buddy is fetched by mb_find_buddy() with order 0, between line 593 to line 615, buddy is not changed, therefore there is no need to fetch buddy again from mb_find_buddy() with order 0 again. We can safely remove the second mb_find_buddy() on line 615. Signed-off-by: Coly Li <bosong.ly@taobao.com> Cc: Alex Tomas <alex@clusterfs.com> Cc: Theodore Tso <tytso@google.com> --- fs/ext4/mballoc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 1791dd4207d5..7de0e2824436 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -617,7 +617,6 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file, MB_CHECK_ASSERT(e4b->bd_info->bb_fragments == fragments); grp = ext4_get_group_info(sb, e4b->bd_group); - buddy = mb_find_buddy(e4b, 0, &max); list_for_each(cur, &grp->bb_prealloc_list) { ext4_group_t groupnr; struct ext4_prealloc_space *pa; -- cgit v1.2.3 From 7c786059293335412f99732c6f4c2a886eab25c2 Mon Sep 17 00:00:00 2001 From: Coly Li <i@coly.li> Date: Thu, 24 Feb 2011 13:24:25 -0500 Subject: mballoc: add comments to ext4_mb_mark_free_simple() This patch adds comments to ext4_mb_mark_free_simple to make it more understandable. Signed-off-by: Coly Li <bosong.ly@taobao.com> Cc: Alex Tomas <alex@clusterfs.com> Cc: Theodore Tso <tytso@google.com> --- fs/ext4/mballoc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 7de0e2824436..b5235c8a2e78 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -635,7 +635,12 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file, #define mb_check_buddy(e4b) #endif -/* FIXME!! need more doc */ +/* + * Divide blocks started from @first with length @len into + * smaller chunks with power of 2 blocks. + * Clear the bits in bitmap which the blocks of the chunk(s) covered, + * then increase bb_counters[] for corresponded chunk size. + */ static void ext4_mb_mark_free_simple(struct super_block *sb, void *buddy, ext4_grpblk_t first, ext4_grpblk_t len, struct ext4_group_info *grp) -- cgit v1.2.3 From 58696f3ab2b23fd6519189875fafdb5d1281eb54 Mon Sep 17 00:00:00 2001 From: Coly Li <i@coly.li> Date: Thu, 24 Feb 2011 14:10:00 -0500 Subject: ext4: clarify description of ac_g_ex in struct ext4_allocation_context Signed-off-by: Coly Li <bosong.ly@taobao.com> Cc: Alex Tomas <alex@clusterfs.com> Cc: Theodore Tso <tytso@google.com> --- fs/ext4/mballoc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h index b619322c76f0..22bd4d7f289b 100644 --- a/fs/ext4/mballoc.h +++ b/fs/ext4/mballoc.h @@ -169,7 +169,7 @@ struct ext4_allocation_context { /* original request */ struct ext4_free_extent ac_o_ex; - /* goal request (after normalization) */ + /* goal request (normalized ac_o_ex) */ struct ext4_free_extent ac_g_ex; /* the best found extent */ -- cgit v1.2.3 From 5a54b2f199fdf19533f96c3e285b70c6729e1e4a Mon Sep 17 00:00:00 2001 From: Coly Li <colyli@gmail.com> Date: Thu, 24 Feb 2011 14:10:05 -0500 Subject: ext4: mballoc: don't replace the current preallocation group unnecessarily In ext4_mb_check_group_pa(), the current preallocation space is replaced with a new preallocation space when the two have the same distance from the goal block. This doesn't actually gain us anything, so change things so that the function only switches to the new preallocation group if its distance from the goal block is strictly smaller than the current preallocaiton group's distance from the goal block. Signed-off-by: Coly Li <bosong.ly@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/mballoc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index b5235c8a2e78..66bee7274d6a 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -3213,7 +3213,7 @@ ext4_mb_check_group_pa(ext4_fsblk_t goal_block, cur_distance = abs(goal_block - cpa->pa_pstart); new_distance = abs(goal_block - pa->pa_pstart); - if (cur_distance < new_distance) + if (cur_distance <= new_distance) return cpa; /* drop the previous reference */ -- cgit v1.2.3 From e0fd9b90765f604374c42de8ac59d6584afce264 Mon Sep 17 00:00:00 2001 From: Curt Wohlgemuth <curtw@google.com> Date: Sat, 26 Feb 2011 12:25:52 -0500 Subject: ext4: mark multi-page IO complete on mapping failure In mpage_da_map_and_submit(), if we have a delayed block allocation failure from ext4_map_blocks(), we need to mark the IO as complete, by setting mpd->io_done = 1; Otherwise, we could end up submitting the pages in an outer loop; since they are unlocked on mapping failure in ext4_da_block_invalidatepages(), this will cause a bug check in mpage_da_submit_io(). I tested this by injected failures into ext4_map_blocks(). Without this patch, a simple fsstress run will bug check; with the patch, it works fine. Signed-off-by: Curt Wohlgemuth <curtw@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index c6c6b7fcb455..fd369dbce6af 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2314,6 +2314,9 @@ static void mpage_da_map_and_submit(struct mpage_da_data *mpd) /* invalidate all the pages */ ext4_da_block_invalidatepages(mpd, next, mpd->b_size >> mpd->inode->i_blkbits); + + /* Mark this page range as having been completed */ + mpd->io_done = 1; return; } BUG_ON(blks == 0); -- cgit v1.2.3 From c7f5938adce6727b9d17785f289c1146bd88d678 Mon Sep 17 00:00:00 2001 From: Curt Wohlgemuth <curtw@google.com> Date: Sat, 26 Feb 2011 12:27:52 -0500 Subject: ext4: fix ext4_da_block_invalidatepages() to handle page range properly If ext4_da_block_invalidatepages() is called because of a failure from ext4_map_blocks() in mpage_da_map_and_submit(), it's supposed to clean up -- including unlock -- all the pages in the mpd structure. But these values may not match up, even on a system in which block size == page size: mpd->b_blocknr != mpd->first_page mpd->b_size != (mpd->next_page - mpd->first_page) ext4_da_block_invalidatepages() has been using b_blocknr and b_size; this patch changes it to use first_page and next_page. Tested: I injected a small number (5%) of failures in ext4_map_blocks() in the case that the flags contain EXT4_GET_BLOCKS_DELALLOC_RESERVE, and ran fsstress on this kernel. Without this patch, I got hung tasks every time. With this patch, I see no hangs in many runs of fsstress. Signed-off-by: Curt Wohlgemuth <curtw@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index fd369dbce6af..e878c3a7aaf0 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2165,8 +2165,7 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd, return ret; } -static void ext4_da_block_invalidatepages(struct mpage_da_data *mpd, - sector_t logical, long blk_cnt) +static void ext4_da_block_invalidatepages(struct mpage_da_data *mpd) { int nr_pages, i; pgoff_t index, end; @@ -2174,9 +2173,8 @@ static void ext4_da_block_invalidatepages(struct mpage_da_data *mpd, struct inode *inode = mpd->inode; struct address_space *mapping = inode->i_mapping; - index = logical >> (PAGE_CACHE_SHIFT - inode->i_blkbits); - end = (logical + blk_cnt - 1) >> - (PAGE_CACHE_SHIFT - inode->i_blkbits); + index = mpd->first_page; + end = mpd->next_page - 1; while (index <= end) { nr_pages = pagevec_lookup(&pvec, mapping, index, PAGEVEC_SIZE); if (nr_pages == 0) @@ -2312,8 +2310,7 @@ static void mpage_da_map_and_submit(struct mpage_da_data *mpd) ext4_print_free_blocks(mpd->inode); } /* invalidate all the pages */ - ext4_da_block_invalidatepages(mpd, next, - mpd->b_size >> mpd->inode->i_blkbits); + ext4_da_block_invalidatepages(mpd); /* Mark this page range as having been completed */ mpd->io_done = 1; -- cgit v1.2.3 From 6fd7a46781999c32f423025767e43b349b967d57 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Sat, 26 Feb 2011 13:53:09 -0500 Subject: ext4: enable mblk_io_submit by default Now that we've fixed the file corruption bug in commit d50bdd5aa55, it's time to enable mblk_io_submit by default. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/super.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index a665d2fb70c1..33c398785e53 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1038,8 +1038,8 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs) !(def_mount_opts & EXT4_DEFM_NODELALLOC)) seq_puts(seq, ",nodelalloc"); - if (test_opt(sb, MBLK_IO_SUBMIT)) - seq_puts(seq, ",mblk_io_submit"); + if (!test_opt(sb, MBLK_IO_SUBMIT)) + seq_puts(seq, ",nomblk_io_submit"); if (sbi->s_stripe) seq_printf(seq, ",stripe=%lu", sbi->s_stripe); /* @@ -3099,6 +3099,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) #ifdef CONFIG_EXT4_FS_POSIX_ACL set_opt(sb, POSIX_ACL); #endif + set_opt(sb, MBLK_IO_SUBMIT); if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA) set_opt(sb, JOURNAL_DATA); else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED) -- cgit v1.2.3 From 8eb9e5ce211de1b98bc84e93258b7db0860a103c Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Sat, 26 Feb 2011 14:07:31 -0500 Subject: ext4: fold __mpage_da_writepage() into write_cache_pages_da() Fold the __mpage_da_writepage() function into write_cache_pages_da(). This will give us opportunities to clean up and simplify the resulting code. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 206 +++++++++++++++++++++++++------------------------------- 1 file changed, 91 insertions(+), 115 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index e878c3a7aaf0..fcd08ca0643b 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2437,102 +2437,6 @@ static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh) return (buffer_delay(bh) || buffer_unwritten(bh)) && buffer_dirty(bh); } -/* - * __mpage_da_writepage - finds extent of pages and blocks - * - * @page: page to consider - * @wbc: not used, we just follow rules - * @data: context - * - * The function finds extents of pages and scan them for all blocks. - */ -static int __mpage_da_writepage(struct page *page, - struct writeback_control *wbc, - struct mpage_da_data *mpd) -{ - struct inode *inode = mpd->inode; - struct buffer_head *bh, *head; - sector_t logical; - - /* - * Can we merge this page to current extent? - */ - if (mpd->next_page != page->index) { - /* - * Nope, we can't. So, we map non-allocated blocks - * and start IO on them - */ - if (mpd->next_page != mpd->first_page) { - mpage_da_map_and_submit(mpd); - /* - * skip rest of the page in the page_vec - */ - redirty_page_for_writepage(wbc, page); - unlock_page(page); - return MPAGE_DA_EXTENT_TAIL; - } - - /* - * Start next extent of pages ... - */ - mpd->first_page = page->index; - - /* - * ... and blocks - */ - mpd->b_size = 0; - mpd->b_state = 0; - mpd->b_blocknr = 0; - } - - mpd->next_page = page->index + 1; - logical = (sector_t) page->index << - (PAGE_CACHE_SHIFT - inode->i_blkbits); - - if (!page_has_buffers(page)) { - mpage_add_bh_to_extent(mpd, logical, PAGE_CACHE_SIZE, - (1 << BH_Dirty) | (1 << BH_Uptodate)); - if (mpd->io_done) - return MPAGE_DA_EXTENT_TAIL; - } else { - /* - * Page with regular buffer heads, just add all dirty ones - */ - head = page_buffers(page); - bh = head; - do { - BUG_ON(buffer_locked(bh)); - /* - * We need to try to allocate - * unmapped blocks in the same page. - * Otherwise we won't make progress - * with the page in ext4_writepage - */ - if (ext4_bh_delay_or_unwritten(NULL, bh)) { - mpage_add_bh_to_extent(mpd, logical, - bh->b_size, - bh->b_state); - if (mpd->io_done) - return MPAGE_DA_EXTENT_TAIL; - } else if (buffer_dirty(bh) && (buffer_mapped(bh))) { - /* - * mapped dirty buffer. We need to update - * the b_state because we look at - * b_state in mpage_da_map_blocks. We don't - * update b_size because if we find an - * unmapped buffer_head later we need to - * use the b_state flag of that buffer_head. - */ - if (mpd->b_size == 0) - mpd->b_state = bh->b_state & BH_FLAGS; - } - logical++; - } while ((bh = bh->b_this_page) != head); - } - - return 0; -} - /* * This is a special get_blocks_t callback which is used by * ext4_da_write_begin(). It will either return mapped block or @@ -2811,18 +2715,17 @@ static int ext4_da_writepages_trans_blocks(struct inode *inode) /* * write_cache_pages_da - walk the list of dirty pages of the given - * address space and call the callback function (which usually writes - * the pages). - * - * This is a forked version of write_cache_pages(). Differences: - * Range cyclic is ignored. - * no_nrwrite_index_update is always presumed true + * address space and accumulate pages that need writing, and call + * mpage_da_map_and_submit to map the pages and then write them. */ static int write_cache_pages_da(struct address_space *mapping, struct writeback_control *wbc, struct mpage_da_data *mpd, pgoff_t *done_index) { + struct inode *inode = mpd->inode; + struct buffer_head *bh, *head; + sector_t logical; int ret = 0; int done = 0; struct pagevec pvec; @@ -2899,17 +2802,90 @@ continue_unlock: if (!clear_page_dirty_for_io(page)) goto continue_unlock; - ret = __mpage_da_writepage(page, wbc, mpd); - if (unlikely(ret)) { - if (ret == AOP_WRITEPAGE_ACTIVATE) { + /* BEGIN __mpage_da_writepage */ + + /* + * Can we merge this page to current extent? + */ + if (mpd->next_page != page->index) { + /* + * Nope, we can't. So, we map + * non-allocated blocks and start IO + * on them + */ + if (mpd->next_page != mpd->first_page) { + mpage_da_map_and_submit(mpd); + /* + * skip rest of the page in the page_vec + */ + redirty_page_for_writepage(wbc, page); unlock_page(page); - ret = 0; - } else { - done = 1; - break; + ret = MPAGE_DA_EXTENT_TAIL; + goto out; } + + /* + * Start next extent of pages and blocks + */ + mpd->first_page = page->index; + mpd->b_size = 0; + mpd->b_state = 0; + mpd->b_blocknr = 0; + } + + mpd->next_page = page->index + 1; + logical = (sector_t) page->index << + (PAGE_CACHE_SHIFT - inode->i_blkbits); + + if (!page_has_buffers(page)) { + mpage_add_bh_to_extent(mpd, logical, PAGE_CACHE_SIZE, + (1 << BH_Dirty) | (1 << BH_Uptodate)); + if (mpd->io_done) { + ret = MPAGE_DA_EXTENT_TAIL; + goto out; + } + } else { + /* + * Page with regular buffer heads, just add all dirty ones + */ + head = page_buffers(page); + bh = head; + do { + BUG_ON(buffer_locked(bh)); + /* + * We need to try to allocate + * unmapped blocks in the same page. + * Otherwise we won't make progress + * with the page in ext4_writepage + */ + if (ext4_bh_delay_or_unwritten(NULL, bh)) { + mpage_add_bh_to_extent(mpd, logical, + bh->b_size, + bh->b_state); + if (mpd->io_done) { + ret = MPAGE_DA_EXTENT_TAIL; + goto out; + } + } else if (buffer_dirty(bh) && (buffer_mapped(bh))) { + /* + * mapped dirty buffer. We need to update + * the b_state because we look at + * b_state in mpage_da_map_blocks. We don't + * update b_size because if we find an + * unmapped buffer_head later we need to + * use the b_state flag of that buffer_head. + */ + if (mpd->b_size == 0) + mpd->b_state = bh->b_state & BH_FLAGS; + } + logical++; + } while ((bh = bh->b_this_page) != head); } + ret = 0; + + /* END __mpage_da_writepage */ + if (nr_to_write > 0) { nr_to_write--; if (nr_to_write == 0 && @@ -2933,6 +2909,10 @@ continue_unlock: cond_resched(); } return ret; +out: + pagevec_release(&pvec); + cond_resched(); + return ret; } @@ -3059,13 +3039,9 @@ retry: } /* - * Now call __mpage_da_writepage to find the next + * Now call write_cache_pages_da() to find the next * contiguous region of logical blocks that need - * blocks to be allocated by ext4. We don't actually - * submit the blocks for I/O here, even though - * write_cache_pages thinks it will, and will set the - * pages as clean for write before calling - * __mpage_da_writepage(). + * blocks to be allocated by ext4 and submit them. */ mpd.b_size = 0; mpd.b_state = 0; -- cgit v1.2.3 From 4f01b02c8c4e4111bd1adbcafb5741e8e991f5fd Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Sat, 26 Feb 2011 14:07:37 -0500 Subject: ext4: simple cleanups to write_cache_pages_da() Eliminate duplicate code, unneeded variables, etc., to make it easier to understand the code. No behavioral changes were made in this patch. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 115 +++++++++++++++++++++++--------------------------------- 1 file changed, 48 insertions(+), 67 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index fcd08ca0643b..1e718e87f466 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2723,17 +2723,14 @@ static int write_cache_pages_da(struct address_space *mapping, struct mpage_da_data *mpd, pgoff_t *done_index) { - struct inode *inode = mpd->inode; - struct buffer_head *bh, *head; - sector_t logical; - int ret = 0; - int done = 0; - struct pagevec pvec; - unsigned nr_pages; - pgoff_t index; - pgoff_t end; /* Inclusive */ - long nr_to_write = wbc->nr_to_write; - int tag; + struct buffer_head *bh, *head; + struct inode *inode = mpd->inode; + struct pagevec pvec; + unsigned int nr_pages; + sector_t logical; + pgoff_t index, end; + long nr_to_write = wbc->nr_to_write; + int i, tag, ret = 0; pagevec_init(&pvec, 0); index = wbc->range_start >> PAGE_CACHE_SHIFT; @@ -2745,13 +2742,11 @@ static int write_cache_pages_da(struct address_space *mapping, tag = PAGECACHE_TAG_DIRTY; *done_index = index; - while (!done && (index <= end)) { - int i; - + while (index <= end) { nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, tag, min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1); if (nr_pages == 0) - break; + return 0; for (i = 0; i < nr_pages; i++) { struct page *page = pvec.pages[i]; @@ -2763,47 +2758,37 @@ static int write_cache_pages_da(struct address_space *mapping, * mapping. However, page->index will not change * because we have a reference on the page. */ - if (page->index > end) { - done = 1; - break; - } + if (page->index > end) + goto out; *done_index = page->index + 1; lock_page(page); /* - * Page truncated or invalidated. We can freely skip it - * then, even for data integrity operations: the page - * has disappeared concurrently, so there could be no - * real expectation of this data interity operation - * even if there is now a new, dirty page at the same - * pagecache address. + * If the page is no longer dirty, or its + * mapping no longer corresponds to inode we + * are writing (which means it has been + * truncated or invalidated), or the page is + * already under writeback and we are not + * doing a data integrity writeback, skip the page */ - if (unlikely(page->mapping != mapping)) { -continue_unlock: + if (!PageDirty(page) || + (PageWriteback(page) && + (wbc->sync_mode == WB_SYNC_NONE)) || + unlikely(page->mapping != mapping)) { + continue_unlock: unlock_page(page); continue; } - if (!PageDirty(page)) { - /* someone wrote it for us */ - goto continue_unlock; - } - - if (PageWriteback(page)) { - if (wbc->sync_mode != WB_SYNC_NONE) - wait_on_page_writeback(page); - else - goto continue_unlock; - } + if (PageWriteback(page)) + wait_on_page_writeback(page); BUG_ON(PageWriteback(page)); if (!clear_page_dirty_for_io(page)) goto continue_unlock; - /* BEGIN __mpage_da_writepage */ - /* * Can we merge this page to current extent? */ @@ -2820,8 +2805,7 @@ continue_unlock: */ redirty_page_for_writepage(wbc, page); unlock_page(page); - ret = MPAGE_DA_EXTENT_TAIL; - goto out; + goto ret_extent_tail; } /* @@ -2838,15 +2822,15 @@ continue_unlock: (PAGE_CACHE_SHIFT - inode->i_blkbits); if (!page_has_buffers(page)) { - mpage_add_bh_to_extent(mpd, logical, PAGE_CACHE_SIZE, + mpage_add_bh_to_extent(mpd, logical, + PAGE_CACHE_SIZE, (1 << BH_Dirty) | (1 << BH_Uptodate)); - if (mpd->io_done) { - ret = MPAGE_DA_EXTENT_TAIL; - goto out; - } + if (mpd->io_done) + goto ret_extent_tail; } else { /* - * Page with regular buffer heads, just add all dirty ones + * Page with regular buffer heads, + * just add all dirty ones */ head = page_buffers(page); bh = head; @@ -2862,18 +2846,19 @@ continue_unlock: mpage_add_bh_to_extent(mpd, logical, bh->b_size, bh->b_state); - if (mpd->io_done) { - ret = MPAGE_DA_EXTENT_TAIL; - goto out; - } + if (mpd->io_done) + goto ret_extent_tail; } else if (buffer_dirty(bh) && (buffer_mapped(bh))) { /* - * mapped dirty buffer. We need to update - * the b_state because we look at - * b_state in mpage_da_map_blocks. We don't - * update b_size because if we find an - * unmapped buffer_head later we need to - * use the b_state flag of that buffer_head. + * mapped dirty buffer. We need + * to update the b_state + * because we look at b_state + * in mpage_da_map_blocks. We + * don't update b_size because + * if we find an unmapped + * buffer_head later we need to + * use the b_state flag of that + * buffer_head. */ if (mpd->b_size == 0) mpd->b_state = bh->b_state & BH_FLAGS; @@ -2882,14 +2867,10 @@ continue_unlock: } while ((bh = bh->b_this_page) != head); } - ret = 0; - - /* END __mpage_da_writepage */ - if (nr_to_write > 0) { nr_to_write--; if (nr_to_write == 0 && - wbc->sync_mode == WB_SYNC_NONE) { + wbc->sync_mode == WB_SYNC_NONE) /* * We stop writing back only if we are * not doing integrity sync. In case of @@ -2900,15 +2881,15 @@ continue_unlock: * pages, but have not synced all of the * old dirty pages. */ - done = 1; - break; - } + goto out; } } pagevec_release(&pvec); cond_resched(); } - return ret; + return 0; +ret_extent_tail: + ret = MPAGE_DA_EXTENT_TAIL; out: pagevec_release(&pvec); cond_resched(); -- cgit v1.2.3 From 9749895644a817cfd28a535bc3ae60e4267bdc50 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Sat, 26 Feb 2011 14:08:01 -0500 Subject: ext4: clear the dirty bit for a page in writeback at the last minute Move when we call clear_page_dirty_for_io() to just before we actually write the page. This simplifies the code somewhat, and avoids marking pages as clean and then needing to remark them as dirty later. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 28 +++++++++++----------------- 1 file changed, 11 insertions(+), 17 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 1e718e87f466..ae6e2f43d873 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2060,7 +2060,7 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd, if (nr_pages == 0) break; for (i = 0; i < nr_pages; i++) { - int commit_write = 0, redirty_page = 0; + int commit_write = 0, skip_page = 0; struct page *page = pvec.pages[i]; index = page->index; @@ -2086,14 +2086,12 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd, * If the page does not have buffers (for * whatever reason), try to create them using * __block_write_begin. If this fails, - * redirty the page and move on. + * skip the page and move on. */ if (!page_has_buffers(page)) { if (__block_write_begin(page, 0, len, noalloc_get_block_write)) { - redirty_page: - redirty_page_for_writepage(mpd->wbc, - page); + skip_page: unlock_page(page); continue; } @@ -2104,7 +2102,7 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd, block_start = 0; do { if (!bh) - goto redirty_page; + goto skip_page; if (map && (cur_logical >= map->m_lblk) && (cur_logical <= (map->m_lblk + (map->m_len - 1)))) { @@ -2120,22 +2118,23 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd, clear_buffer_unwritten(bh); } - /* redirty page if block allocation undone */ + /* skip page if block allocation undone */ if (buffer_delay(bh) || buffer_unwritten(bh)) - redirty_page = 1; + skip_page = 1; bh = bh->b_this_page; block_start += bh->b_size; cur_logical++; pblock++; } while (bh != page_bufs); - if (redirty_page) - goto redirty_page; + if (skip_page) + goto skip_page; if (commit_write) /* mark the buffer_heads as dirty & uptodate */ block_commit_write(page, 0, len); + clear_page_dirty_for_io(page); /* * Delalloc doesn't support data journalling, * but eventually maybe we'll lift this @@ -2277,9 +2276,8 @@ static void mpage_da_map_and_submit(struct mpage_da_data *mpd) err = blks; /* * If get block returns EAGAIN or ENOSPC and there - * appears to be free blocks we will call - * ext4_writepage() for all of the pages which will - * just redirty the pages. + * appears to be free blocks we will just let + * mpage_da_submit_io() unlock all of the pages. */ if (err == -EAGAIN) goto submit_io; @@ -2777,7 +2775,6 @@ static int write_cache_pages_da(struct address_space *mapping, (PageWriteback(page) && (wbc->sync_mode == WB_SYNC_NONE)) || unlikely(page->mapping != mapping)) { - continue_unlock: unlock_page(page); continue; } @@ -2786,8 +2783,6 @@ static int write_cache_pages_da(struct address_space *mapping, wait_on_page_writeback(page); BUG_ON(PageWriteback(page)); - if (!clear_page_dirty_for_io(page)) - goto continue_unlock; /* * Can we merge this page to current extent? @@ -2803,7 +2798,6 @@ static int write_cache_pages_da(struct address_space *mapping, /* * skip rest of the page in the page_vec */ - redirty_page_for_writepage(wbc, page); unlock_page(page); goto ret_extent_tail; } -- cgit v1.2.3 From ee6ecbcc5d73672217fdea420d182ecb0cdf310c Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Sat, 26 Feb 2011 14:08:11 -0500 Subject: ext4: remove page_skipped hackery in ext4_da_writepages() Because the ext4 page writeback codepath had been prematurely calling clear_page_dirty_for_io(), if it turned out that a particular page couldn't be written out during a particular pass of write_cache_pages_da(), the page would have to get redirtied by calling redirty_pages_for_writeback(). Not only was this wasted work, but redirty_page_for_writeback() would increment wbc->pages_skipped to signal to writeback_sb_inodes() that buffers were locked, and that it should skip this inode until later. Since this signal was incorrect in ext4's case --- which was caused by ext4's historically incorrect use of write_cache_pages() --- ext4_da_writepages() saved and restored wbc->skipped_pages to avoid confusing writeback_sb_inodes(). Now that we've fixed ext4 to call clear_page_dirty_for_io() right before initiating the page I/O, we can nuke the page_skipped save/restore hackery, and breathe a sigh of relief. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index ae6e2f43d873..617c9cbba182 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2900,7 +2900,6 @@ static int ext4_da_writepages(struct address_space *mapping, struct mpage_da_data mpd; struct inode *inode = mapping->host; int pages_written = 0; - long pages_skipped; unsigned int max_pages; int range_cyclic, cycled = 1, io_done = 0; int needed_blocks, ret = 0; @@ -2986,8 +2985,6 @@ static int ext4_da_writepages(struct address_space *mapping, mpd.wbc = wbc; mpd.inode = mapping->host; - pages_skipped = wbc->pages_skipped; - retry: if (wbc->sync_mode == WB_SYNC_ALL) tag_pages_for_writeback(mapping, index, end); @@ -3047,7 +3044,6 @@ retry: * and try again */ jbd2_journal_force_commit_nested(sbi->s_journal); - wbc->pages_skipped = pages_skipped; ret = 0; } else if (ret == MPAGE_DA_EXTENT_TAIL) { /* @@ -3055,7 +3051,6 @@ retry: * rest of the pages */ pages_written += mpd.pages_written; - wbc->pages_skipped = pages_skipped; ret = 0; io_done = 1; } else if (wbc->nr_to_write) @@ -3073,11 +3068,6 @@ retry: wbc->range_end = mapping->writeback_index - 1; goto retry; } - if (pages_skipped != wbc->pages_skipped) - ext4_msg(inode->i_sb, KERN_CRIT, - "This should not happen leaving %s " - "with nr_to_write = %ld ret = %d", - __func__, wbc->nr_to_write, ret); /* Update index */ wbc->range_cyclic = range_cyclic; -- cgit v1.2.3 From 78aaced3408141bb7c836f2db0ca435790399da5 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Sat, 26 Feb 2011 14:09:14 -0500 Subject: ext4: don't lock the next page in write_cache_pages if not needed If we have accumulated a contiguous region of memory to be written out, and the next page can added to this region, don't bother locking (and then unlocking the page) before writing out the memory. In the unlikely event that the next page was being written back by some other CPU, we can also skip waiting that page to finish writeback. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 27 ++++++++++----------------- 1 file changed, 10 insertions(+), 17 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 617c9cbba182..c2e6af338234 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2761,6 +2761,16 @@ static int write_cache_pages_da(struct address_space *mapping, *done_index = page->index + 1; + /* + * If we can't merge this page, and we have + * accumulated an contiguous region, write it + */ + if ((mpd->next_page != page->index) && + (mpd->next_page != mpd->first_page)) { + mpage_da_map_and_submit(mpd); + goto ret_extent_tail; + } + lock_page(page); /* @@ -2784,24 +2794,7 @@ static int write_cache_pages_da(struct address_space *mapping, BUG_ON(PageWriteback(page)); - /* - * Can we merge this page to current extent? - */ if (mpd->next_page != page->index) { - /* - * Nope, we can't. So, we map - * non-allocated blocks and start IO - * on them - */ - if (mpd->next_page != mpd->first_page) { - mpage_da_map_and_submit(mpd); - /* - * skip rest of the page in the page_vec - */ - unlock_page(page); - goto ret_extent_tail; - } - /* * Start next extent of pages and blocks */ -- cgit v1.2.3 From 168fc0223c0e944957b1f31d88c2334fc904baf1 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Sat, 26 Feb 2011 14:09:20 -0500 Subject: ext4: move setup of the mpd structure to write_cache_pages_da() Move the initialization of all of the fields of the mpd structure to write_cache_pages_da(). This simplifies the code considerably. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 29 +++++++---------------------- 1 file changed, 7 insertions(+), 22 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index c2e6af338234..dcc2287433b6 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2714,7 +2714,8 @@ static int ext4_da_writepages_trans_blocks(struct inode *inode) /* * write_cache_pages_da - walk the list of dirty pages of the given * address space and accumulate pages that need writing, and call - * mpage_da_map_and_submit to map the pages and then write them. + * mpage_da_map_and_submit to map a single contiguous memory region + * and then write them. */ static int write_cache_pages_da(struct address_space *mapping, struct writeback_control *wbc, @@ -2722,7 +2723,7 @@ static int write_cache_pages_da(struct address_space *mapping, pgoff_t *done_index) { struct buffer_head *bh, *head; - struct inode *inode = mpd->inode; + struct inode *inode = mapping->host; struct pagevec pvec; unsigned int nr_pages; sector_t logical; @@ -2730,6 +2731,9 @@ static int write_cache_pages_da(struct address_space *mapping, long nr_to_write = wbc->nr_to_write; int i, tag, ret = 0; + memset(mpd, 0, sizeof(struct mpage_da_data)); + mpd->wbc = wbc; + mpd->inode = inode; pagevec_init(&pvec, 0); index = wbc->range_start >> PAGE_CACHE_SHIFT; end = wbc->range_end >> PAGE_CACHE_SHIFT; @@ -2794,16 +2798,8 @@ static int write_cache_pages_da(struct address_space *mapping, BUG_ON(PageWriteback(page)); - if (mpd->next_page != page->index) { - /* - * Start next extent of pages and blocks - */ + if (mpd->next_page != page->index) mpd->first_page = page->index; - mpd->b_size = 0; - mpd->b_state = 0; - mpd->b_blocknr = 0; - } - mpd->next_page = page->index + 1; logical = (sector_t) page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits); @@ -2975,9 +2971,6 @@ static int ext4_da_writepages(struct address_space *mapping, wbc->nr_to_write = desired_nr_to_write; } - mpd.wbc = wbc; - mpd.inode = mapping->host; - retry: if (wbc->sync_mode == WB_SYNC_ALL) tag_pages_for_writeback(mapping, index, end); @@ -3008,14 +3001,6 @@ retry: * contiguous region of logical blocks that need * blocks to be allocated by ext4 and submit them. */ - mpd.b_size = 0; - mpd.b_state = 0; - mpd.b_blocknr = 0; - mpd.first_page = 0; - mpd.next_page = 0; - mpd.io_done = 0; - mpd.pages_written = 0; - mpd.retval = 0; ret = write_cache_pages_da(mapping, wbc, &mpd, &done_index); /* * If we have a contiguous extent of pages and we -- cgit v1.2.3 From a54aa76108619e5d8290b49081c2aaaeff5be9a2 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Sun, 27 Feb 2011 16:43:24 -0500 Subject: ext4: don't leave PageWriteback set after memory failure In ext4_bio_write_page(), if the memory allocation for the struct ext4_io_page fails, it returns with the page's PageWriteback flag set. This will end up causing the page not to skip writeback in WB_SYNC_NONE mode, and in WB_SYNC_ALL mode (i.e., on a sync, fsync, or umount) the writeback daemon will get stuck forever on the wait_on_page_writeback() function in write_cache_pages_da(). Or, if journalling is enabled and the file gets deleted, it the journal thread can get stuck in journal_finish_inode_data_buffers() call to filemap_fdatawait(). Another place where things can get hung up is in truncate_inode_pages(), called out of ext4_evict_inode(). Fix this by not setting PageWriteback until after we have successfully allocated the struct ext4_io_page. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/page-io.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index 68d92a8f71d7..d5c391ffad7a 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -381,8 +381,6 @@ int ext4_bio_write_page(struct ext4_io_submit *io, BUG_ON(!PageLocked(page)); BUG_ON(PageWriteback(page)); - set_page_writeback(page); - ClearPageError(page); io_page = kmem_cache_alloc(io_page_cachep, GFP_NOFS); if (!io_page) { @@ -393,6 +391,8 @@ int ext4_bio_write_page(struct ext4_io_submit *io, io_page->p_page = page; atomic_set(&io_page->p_count, 1); get_page(page); + set_page_writeback(page); + ClearPageError(page); for (bh = head = page_buffers(page), block_start = 0; bh != head || !block_start; -- cgit v1.2.3 From 4dd89fc6251a6bda2c18e71e7d266e983806579d Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Sun, 27 Feb 2011 17:23:47 -0500 Subject: ext4: suppress verbose debugging information if malloc-debug is off If CONFIG_EXT4_DEBUG is enabled, then if a block allocation fails due to disk being full, a verbose debugging message is printed, even if the malloc-debug switch has not been enabled. Suppress the debugging message so that nothing is printed unless malloc-debug has been turned on. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/mballoc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 66bee7274d6a..2f6f0dd08fca 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -3912,7 +3912,8 @@ static void ext4_mb_show_ac(struct ext4_allocation_context *ac) struct super_block *sb = ac->ac_sb; ext4_group_t ngroups, i; - if (EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED) + if (!mb_enable_debug || + (EXT4_SB(sb)->s_mount_flags & EXT4_MF_FS_ABORTED)) return; printk(KERN_ERR "EXT4-fs: Can't allocate:" -- cgit v1.2.3 From 6d9c85eb700bd3ac59e63bb9de463dea1aca084c Mon Sep 17 00:00:00 2001 From: Yongqiang Yang <xiaoqiangnk@gmail.com> Date: Sun, 27 Feb 2011 17:25:47 -0500 Subject: ext4: make FIEMAP and delayed allocation play well together Fix the FIEMAP ioctl so that it returns all of the page ranges which are still subject to delayed allocation. We were missing some cases if the file was sparse. Reported by Chris Mason <chris.mason@oracle.com>: >We've had reports on btrfs that cp is giving us files full of zeros >instead of actually copying them. It was tracked down to a bug with >the btrfs fiemap implementation where it was returning holes for >delalloc ranges. > >Newer versions of cp are trusting fiemap to tell it where the holes >are, which does seem like a pretty neat trick. > >I decided to give xfs and ext4 a shot with a few tests cases too, xfs >passed with all the ones btrfs was getting wrong, and ext4 got the basic >delalloc case right. >$ mkfs.ext4 /dev/xxx >$ mount /dev/xxx /mnt >$ dd if=/dev/zero of=/mnt/foo bs=1M count=1 >$ fiemap-test foo >ext: 0 logical: [ 0.. 255] phys: 0.. 255 >flags: 0x007 tot: 256 > >Horray! But once we throw a hole in, things go bad: >$ mkfs.ext4 /dev/xxx >$ mount /dev/xxx /mnt >$ dd if=/dev/zero of=/mnt/foo bs=1M count=1 seek=1 >$ fiemap-test foo >< no output > > >We've got a delalloc extent after the hole and ext4 fiemap didn't find >it. If I run sync to kick the delalloc out: >$sync >$ fiemap-test foo >ext: 0 logical: [ 256.. 511] phys: 34048.. 34303 >flags: 0x001 tot: 256 > >fiemap-test is sitting in my /usr/local/bin, and I have no idea how it >got there. It's full of pretty comments so I know it isn't mine, but >you can grab it here: > >http://oss.oracle.com/~mason/fiemap-test.c > >xfsqa has a fiemap program too. After Fix, test results are as follows: ext: 0 logical: [ 256.. 511] phys: 0.. 255 flags: 0x007 tot: 256 ext: 0 logical: [ 256.. 511] phys: 33280.. 33535 flags: 0x001 tot: 256 $ mkfs.ext4 /dev/xxx $ mount /dev/xxx /mnt $ dd if=/dev/zero of=/mnt/foo bs=1M count=1 seek=1 $ sync $ dd if=/dev/zero of=/mnt/foo bs=1M count=1 seek=3 $ dd if=/dev/zero of=/mnt/foo bs=1M count=1 seek=5 $ fiemap-test foo ext: 0 logical: [ 256.. 511] phys: 33280.. 33535 flags: 0x000 tot: 256 ext: 1 logical: [ 768.. 1023] phys: 0.. 255 flags: 0x006 tot: 256 ext: 2 logical: [ 1280.. 1535] phys: 0.. 255 flags: 0x007 tot: 256 Tested-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/extents.c | 187 ++++++++++++++++++++++++++++++++++++++++++------------ 1 file changed, 148 insertions(+), 39 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index d16f6b5a140b..9ea1bc64ca6d 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3775,6 +3775,7 @@ int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset, } return ret > 0 ? ret2 : ret; } + /* * Callback function called for each extent to gather FIEMAP information. */ @@ -3782,38 +3783,162 @@ static int ext4_ext_fiemap_cb(struct inode *inode, struct ext4_ext_path *path, struct ext4_ext_cache *newex, struct ext4_extent *ex, void *data) { - struct fiemap_extent_info *fieinfo = data; - unsigned char blksize_bits = inode->i_sb->s_blocksize_bits; __u64 logical; __u64 physical; __u64 length; + loff_t size; __u32 flags = 0; - int error; + int ret = 0; + struct fiemap_extent_info *fieinfo = data; + unsigned char blksize_bits; - logical = (__u64)newex->ec_block << blksize_bits; + blksize_bits = inode->i_sb->s_blocksize_bits; + logical = (__u64)newex->ec_block << blksize_bits; if (newex->ec_start == 0) { - pgoff_t offset; - struct page *page; + /* + * No extent in extent-tree contains block @newex->ec_start, + * then the block may stay in 1)a hole or 2)delayed-extent. + * + * Holes or delayed-extents are processed as follows. + * 1. lookup dirty pages with specified range in pagecache. + * If no page is got, then there is no delayed-extent and + * return with EXT_CONTINUE. + * 2. find the 1st mapped buffer, + * 3. check if the mapped buffer is both in the request range + * and a delayed buffer. If not, there is no delayed-extent, + * then return. + * 4. a delayed-extent is found, the extent will be collected. + */ + ext4_lblk_t end = 0; + pgoff_t last_offset; + pgoff_t offset; + pgoff_t index; + struct page **pages = NULL; struct buffer_head *bh = NULL; + struct buffer_head *head = NULL; + unsigned int nr_pages = PAGE_SIZE / sizeof(struct page *); + + pages = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (pages == NULL) + return -ENOMEM; offset = logical >> PAGE_SHIFT; - page = find_get_page(inode->i_mapping, offset); - if (!page || !page_has_buffers(page)) - return EXT_CONTINUE; +repeat: + last_offset = offset; + head = NULL; + ret = find_get_pages_tag(inode->i_mapping, &offset, + PAGECACHE_TAG_DIRTY, nr_pages, pages); + + if (!(flags & FIEMAP_EXTENT_DELALLOC)) { + /* First time, try to find a mapped buffer. */ + if (ret == 0) { +out: + for (index = 0; index < ret; index++) + page_cache_release(pages[index]); + /* just a hole. */ + kfree(pages); + return EXT_CONTINUE; + } - bh = page_buffers(page); + /* Try to find the 1st mapped buffer. */ + end = ((__u64)pages[0]->index << PAGE_SHIFT) >> + blksize_bits; + if (!page_has_buffers(pages[0])) + goto out; + head = page_buffers(pages[0]); + if (!head) + goto out; - if (!bh) - return EXT_CONTINUE; + bh = head; + do { + if (buffer_mapped(bh)) { + /* get the 1st mapped buffer. */ + if (end > newex->ec_block + + newex->ec_len) + /* The buffer is out of + * the request range. + */ + goto out; + goto found_mapped_buffer; + } + bh = bh->b_this_page; + end++; + } while (bh != head); - if (buffer_delay(bh)) { - flags |= FIEMAP_EXTENT_DELALLOC; - page_cache_release(page); + /* No mapped buffer found. */ + goto out; } else { - page_cache_release(page); - return EXT_CONTINUE; + /*Find contiguous delayed buffers. */ + if (ret > 0 && pages[0]->index == last_offset) + head = page_buffers(pages[0]); + bh = head; + } + +found_mapped_buffer: + if (bh != NULL && buffer_delay(bh)) { + /* 1st or contiguous delayed buffer found. */ + if (!(flags & FIEMAP_EXTENT_DELALLOC)) { + /* + * 1st delayed buffer found, record + * the start of extent. + */ + flags |= FIEMAP_EXTENT_DELALLOC; + newex->ec_block = end; + logical = (__u64)end << blksize_bits; + } + /* Find contiguous delayed buffers. */ + do { + if (!buffer_delay(bh)) + goto found_delayed_extent; + bh = bh->b_this_page; + end++; + } while (bh != head); + + for (index = 1; index < ret; index++) { + if (!page_has_buffers(pages[index])) { + bh = NULL; + break; + } + head = page_buffers(pages[index]); + if (!head) { + bh = NULL; + break; + } + if (pages[index]->index != + pages[0]->index + index) { + /* Blocks are not contiguous. */ + bh = NULL; + break; + } + bh = head; + do { + if (!buffer_delay(bh)) + /* Delayed-extent ends. */ + goto found_delayed_extent; + bh = bh->b_this_page; + end++; + } while (bh != head); + } + } else if (!(flags & FIEMAP_EXTENT_DELALLOC)) + /* a hole found. */ + goto out; + +found_delayed_extent: + newex->ec_len = min(end - newex->ec_block, + (ext4_lblk_t)EXT_INIT_MAX_LEN); + if (ret == nr_pages && bh != NULL && + newex->ec_len < EXT_INIT_MAX_LEN && + buffer_delay(bh)) { + /* Have not collected an extent and continue. */ + for (index = 0; index < ret; index++) + page_cache_release(pages[index]); + goto repeat; } + + for (index = 0; index < ret; index++) + page_cache_release(pages[index]); + kfree(pages); } physical = (__u64)newex->ec_start << blksize_bits; @@ -3822,32 +3947,16 @@ static int ext4_ext_fiemap_cb(struct inode *inode, struct ext4_ext_path *path, if (ex && ext4_ext_is_uninitialized(ex)) flags |= FIEMAP_EXTENT_UNWRITTEN; - /* - * If this extent reaches EXT_MAX_BLOCK, it must be last. - * - * Or if ext4_ext_next_allocated_block is EXT_MAX_BLOCK, - * this also indicates no more allocated blocks. - * - * XXX this might miss a single-block extent at EXT_MAX_BLOCK - */ - if (ext4_ext_next_allocated_block(path) == EXT_MAX_BLOCK || - newex->ec_block + newex->ec_len - 1 == EXT_MAX_BLOCK) { - loff_t size = i_size_read(inode); - loff_t bs = EXT4_BLOCK_SIZE(inode->i_sb); - + size = i_size_read(inode); + if (logical + length >= size) flags |= FIEMAP_EXTENT_LAST; - if ((flags & FIEMAP_EXTENT_DELALLOC) && - logical+length > size) - length = (size - logical + bs - 1) & ~(bs-1); - } - error = fiemap_fill_next_extent(fieinfo, logical, physical, + ret = fiemap_fill_next_extent(fieinfo, logical, physical, length, flags); - if (error < 0) - return error; - if (error == 1) + if (ret < 0) + return ret; + if (ret == 1) return EXT_BREAK; - return EXT_CONTINUE; } -- cgit v1.2.3 From 32a9bb57d7c1fd04ae0f72b8f671501f000a0e9f Mon Sep 17 00:00:00 2001 From: Manish Katiyar <mkatiyar@gmail.com> Date: Sun, 27 Feb 2011 20:42:06 -0500 Subject: ext4: fix missing iput of root inode for some mount error paths This assures that the root inode is not leaked, and that sb->s_root is NULL, which will prevent generic_shutdown_super() from doing extra work, including call sync_filesystem, which ultimately results in ext4_sync_fs() getting called with an uninitialized struct super, which is the cause of the crash noted in Kernel Bugzilla #26752. https://bugzilla.kernel.org/show_bug.cgi?id=26752 Signed-off-by: Manish Katiyar <mkatiyar@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/super.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 33c398785e53..bd6e86aa82aa 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3521,17 +3521,16 @@ no_journal: if (IS_ERR(root)) { ext4_msg(sb, KERN_ERR, "get root inode failed"); ret = PTR_ERR(root); + root = NULL; goto failed_mount4; } if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { - iput(root); ext4_msg(sb, KERN_ERR, "corrupt root inode, run e2fsck"); goto failed_mount4; } sb->s_root = d_alloc_root(root); if (!sb->s_root) { ext4_msg(sb, KERN_ERR, "get root dentry failed"); - iput(root); ret = -ENOMEM; goto failed_mount4; } @@ -3647,6 +3646,8 @@ cantfind_ext4: goto failed_mount; failed_mount4: + iput(root); + sb->s_root = NULL; ext4_msg(sb, KERN_ERR, "mount failed"); destroy_workqueue(EXT4_SB(sb)->dio_unwritten_wq); failed_mount_wq: -- cgit v1.2.3 From 8e8eaabefee3ff645b9551ee32c6c54c7d80ad19 Mon Sep 17 00:00:00 2001 From: Amir Goldstein <amir73il@gmail.com> Date: Sun, 27 Feb 2011 23:32:12 -0500 Subject: ext4: use the nblocks arg to ext4_truncate_restart_trans() nblocks is passed into ext4_truncate_restart_trans() from ext4_ext_truncate_extend_restart() with a value different from the default blocks_for_truncate(), but is being ignored. The two other calls to ext4_truncate_restart_trans() already pass the default value, which is then being recalculated inside the function. Fix the problem by using the passed argument. Signed-off-by: Amir Goldstein <amir73il@users.sf.net> --- fs/ext4/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index dcc2287433b6..67e7a3caf9ed 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -173,7 +173,7 @@ int ext4_truncate_restart_trans(handle_t *handle, struct inode *inode, BUG_ON(EXT4_JOURNAL(inode) == NULL); jbd_debug(2, "restarting handle %p\n", handle); up_write(&EXT4_I(inode)->i_data_sem); - ret = ext4_journal_restart(handle, blocks_for_truncate(inode)); + ret = ext4_journal_restart(handle, nblocks); down_write(&EXT4_I(inode)->i_data_sem); ext4_discard_preallocations(inode); -- cgit v1.2.3 From d39195c33bb1b5fdcb0f416e8a0b34bfdb07a027 Mon Sep 17 00:00:00 2001 From: Amir Goldstein <amir73il@gmail.com> Date: Mon, 28 Feb 2011 00:53:45 -0500 Subject: ext4: skip orphan cleanup if fs has unknown ROCOMPAT features Orphan cleanup is currently executed even if the file system has some number of unknown ROCOMPAT features, which deletes inodes and frees blocks, which could be very bad for some RO_COMPAT features, especially the SNAPSHOT feature. This patch skips the orphan cleanup if it contains readonly compatible features not known by this ext4 implementation, which would prevent the fs from being mounted (or remounted) readwrite. Signed-off-by: Amir Goldstein <amir73il@users.sf.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/super.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index bd6e86aa82aa..9eaec22aa088 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -75,6 +75,7 @@ static void ext4_write_super(struct super_block *sb); static int ext4_freeze(struct super_block *sb); static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data); +static int ext4_feature_set_ok(struct super_block *sb, int readonly); static void ext4_destroy_lazyinit_thread(void); static void ext4_unregister_li_request(struct super_block *sb); static void ext4_clear_request_list(void); @@ -2117,6 +2118,13 @@ static void ext4_orphan_cleanup(struct super_block *sb, return; } + /* Check if feature set would not allow a r/w mount */ + if (!ext4_feature_set_ok(sb, 0)) { + ext4_msg(sb, KERN_INFO, "Skipping orphan cleanup due to " + "unknown ROCOMPAT features"); + return; + } + if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) { if (es->s_last_orphan) jbd_debug(1, "Errors on filesystem, " -- cgit v1.2.3 From d6ccc442b12102414c1343f0adacaa8a1aaa516c Mon Sep 17 00:00:00 2001 From: Heikki Krogerus <heikki.krogerus@nokia.com> Date: Fri, 25 Feb 2011 13:56:36 +0200 Subject: twl4030_charger: Make the driver atomic notifier safe This queues work from the otg notification where the i2c operations can be safely made. Needed for atomic otg notifiers. Signed-off-by: Heikki Krogerus <heikki.krogerus@nokia.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/twl4030_charger.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c index ff1f42398a2e..92c16e1677bd 100644 --- a/drivers/power/twl4030_charger.c +++ b/drivers/power/twl4030_charger.c @@ -71,8 +71,11 @@ struct twl4030_bci { struct power_supply usb; struct otg_transceiver *transceiver; struct notifier_block otg_nb; + struct work_struct work; int irq_chg; int irq_bci; + + unsigned long event; }; /* @@ -258,14 +261,11 @@ static irqreturn_t twl4030_bci_interrupt(int irq, void *arg) return IRQ_HANDLED; } -static int twl4030_bci_usb_ncb(struct notifier_block *nb, unsigned long val, - void *priv) +static void twl4030_bci_usb_work(struct work_struct *data) { - struct twl4030_bci *bci = container_of(nb, struct twl4030_bci, otg_nb); + struct twl4030_bci *bci = container_of(data, struct twl4030_bci, work); - dev_dbg(bci->dev, "OTG notify %lu\n", val); - - switch (val) { + switch (bci->event) { case USB_EVENT_VBUS: case USB_EVENT_CHARGER: twl4030_charger_enable_usb(bci, true); @@ -274,6 +274,17 @@ static int twl4030_bci_usb_ncb(struct notifier_block *nb, unsigned long val, twl4030_charger_enable_usb(bci, false); break; } +} + +static int twl4030_bci_usb_ncb(struct notifier_block *nb, unsigned long val, + void *priv) +{ + struct twl4030_bci *bci = container_of(nb, struct twl4030_bci, otg_nb); + + dev_dbg(bci->dev, "OTG notify %lu\n", val); + + bci->event = val; + schedule_work(&bci->work); return NOTIFY_OK; } @@ -466,6 +477,8 @@ static int __init twl4030_bci_probe(struct platform_device *pdev) goto fail_bci_irq; } + INIT_WORK(&bci->work, twl4030_bci_usb_work); + bci->transceiver = otg_get_transceiver(); if (bci->transceiver != NULL) { bci->otg_nb.notifier_call = twl4030_bci_usb_ncb; -- cgit v1.2.3 From b616844310a6c8a4ab405d3436bbb6e53cfd852f Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Mon, 28 Feb 2011 13:12:38 -0500 Subject: ext4: optimize ext4_bio_write_page() when no extent conversion is needed If no extent conversion is required, wake up any processes waiting for the page's writeback to be complete and free the ext4_io_end structure directly in ext4_end_bio() instead of dropping it on the linked list (which requires taking a spinlock to queue and dequeue the io_end structure), and waiting for the workqueue to do this work. This removes an extra scheduling delay before process waiting for an fsync() to complete gets woken up, and it also reduces the CPU overhead for a random write workload. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/page-io.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index d5c391ffad7a..0cfd03e19d7d 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -259,6 +259,11 @@ static void ext4_end_bio(struct bio *bio, int error) bi_sector >> (inode->i_blkbits - 9)); } + if (!(io_end->flag & EXT4_IO_END_UNWRITTEN)) { + ext4_free_io_end(io_end); + return; + } + /* Add the io_end to per-inode completed io list*/ spin_lock_irqsave(&EXT4_I(inode)->i_completed_io_lock, flags); list_add_tail(&io_end->list, &EXT4_I(inode)->i_completed_io_list); -- cgit v1.2.3 From bb879101606dd7235d8f4ecd0f707b63281d0838 Mon Sep 17 00:00:00 2001 From: Rhyland Klein <rklein@nvidia.com> Date: Mon, 28 Feb 2011 16:55:28 -0800 Subject: bq20z75: Add optional battery detect gpio Adding support for an optional gpio for battery detection. This is passed in through the i2c platform data. It also accepts another field, battery_detect_present to signify the gpio state which means the battery is present, either 0 (low) or 1 (high). Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/bq20z75.c | 160 ++++++++++++++++++++++++++++++++++-------- include/linux/power/bq20z75.h | 37 ++++++++++ 2 files changed, 166 insertions(+), 31 deletions(-) create mode 100644 include/linux/power/bq20z75.h diff --git a/drivers/power/bq20z75.c b/drivers/power/bq20z75.c index 4141775e5ff6..a51e98d74d34 100644 --- a/drivers/power/bq20z75.c +++ b/drivers/power/bq20z75.c @@ -25,6 +25,10 @@ #include <linux/power_supply.h> #include <linux/i2c.h> #include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/gpio.h> + +#include <linux/power/bq20z75.h> enum { REG_MANUFACTURER_DATA, @@ -141,8 +145,13 @@ static enum power_supply_property bq20z75_properties[] = { }; struct bq20z75_info { - struct i2c_client *client; - struct power_supply power_supply; + struct i2c_client *client; + struct power_supply power_supply; + struct bq20z75_platform_data *pdata; + bool is_present; + bool gpio_detect; + bool enable_detection; + int irq; }; static int bq20z75_read_word_data(struct i2c_client *client, u8 address) @@ -179,6 +188,18 @@ static int bq20z75_get_battery_presence_and_health( union power_supply_propval *val) { s32 ret; + struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client); + + if (psp == POWER_SUPPLY_PROP_PRESENT && + bq20z75_device->gpio_detect) { + ret = gpio_get_value( + bq20z75_device->pdata->battery_detect); + if (ret == bq20z75_device->pdata->battery_detect_present) + val->intval = 1; + else + val->intval = 0; + return ret; + } /* Write to ManufacturerAccess with * ManufacturerAccess command and then @@ -192,8 +213,11 @@ static int bq20z75_get_battery_presence_and_health( ret = bq20z75_read_word_data(client, bq20z75_data[REG_MANUFACTURER_DATA].addr); - if (ret < 0) + if (ret < 0) { + if (psp == POWER_SUPPLY_PROP_PRESENT) + val->intval = 0; /* battery removed */ return ret; + } if (ret < bq20z75_data[REG_MANUFACTURER_DATA].min_value || ret > bq20z75_data[REG_MANUFACTURER_DATA].max_value) { @@ -397,8 +421,7 @@ static int bq20z75_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { - int ps_index; - int ret; + int ret = 0; struct bq20z75_info *bq20z75_device = container_of(psy, struct bq20z75_info, power_supply); struct i2c_client *client = bq20z75_device->client; @@ -407,8 +430,6 @@ static int bq20z75_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_PRESENT: case POWER_SUPPLY_PROP_HEALTH: ret = bq20z75_get_battery_presence_and_health(client, psp, val); - if (ret) - return ret; break; case POWER_SUPPLY_PROP_TECHNOLOGY: @@ -422,20 +443,15 @@ static int bq20z75_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_CHARGE_FULL: case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: case POWER_SUPPLY_PROP_CAPACITY: - ps_index = bq20z75_get_property_index(client, psp); - if (ps_index < 0) - return ps_index; - - ret = bq20z75_get_battery_capacity(client, ps_index, psp, val); - if (ret) - return ret; + ret = bq20z75_get_property_index(client, psp); + if (ret < 0) + break; + ret = bq20z75_get_battery_capacity(client, ret, psp, val); break; case POWER_SUPPLY_PROP_SERIAL_NUMBER: ret = bq20z75_get_battery_serial_number(client, val); - if (ret) - return ret; break; case POWER_SUPPLY_PROP_STATUS: @@ -446,14 +462,11 @@ static int bq20z75_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG: case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: - ps_index = bq20z75_get_property_index(client, psp); - if (ps_index < 0) - return ps_index; - - ret = bq20z75_get_battery_property(client, ps_index, psp, val); - if (ret) - return ret; + ret = bq20z75_get_property_index(client, psp); + if (ret < 0) + break; + ret = bq20z75_get_battery_property(client, ret, psp, val); break; default: @@ -462,26 +475,51 @@ static int bq20z75_get_property(struct power_supply *psy, return -EINVAL; } - /* Convert units to match requirements for power supply class */ - bq20z75_unit_adjustment(client, psp, val); + if (!bq20z75_device->enable_detection) + goto done; + + if (!bq20z75_device->gpio_detect && + bq20z75_device->is_present != (ret >= 0)) { + bq20z75_device->is_present = (ret >= 0); + power_supply_changed(&bq20z75_device->power_supply); + } + +done: + if (!ret) { + /* Convert units to match requirements for power supply class */ + bq20z75_unit_adjustment(client, psp, val); + } dev_dbg(&client->dev, "%s: property = %d, value = %d\n", __func__, psp, val->intval); - return 0; + return ret; } -static int bq20z75_probe(struct i2c_client *client, +static irqreturn_t bq20z75_irq(int irq, void *devid) +{ + struct power_supply *battery = devid; + + power_supply_changed(battery); + + return IRQ_HANDLED; +} + +static int __devinit bq20z75_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct bq20z75_info *bq20z75_device; + struct bq20z75_platform_data *pdata = client->dev.platform_data; int rc; + int irq; bq20z75_device = kzalloc(sizeof(struct bq20z75_info), GFP_KERNEL); if (!bq20z75_device) return -ENOMEM; bq20z75_device->client = client; + bq20z75_device->enable_detection = false; + bq20z75_device->gpio_detect = false; bq20z75_device->power_supply.name = "battery"; bq20z75_device->power_supply.type = POWER_SUPPLY_TYPE_BATTERY; bq20z75_device->power_supply.properties = bq20z75_properties; @@ -489,26 +527,86 @@ static int bq20z75_probe(struct i2c_client *client, ARRAY_SIZE(bq20z75_properties); bq20z75_device->power_supply.get_property = bq20z75_get_property; + if (pdata) { + bq20z75_device->gpio_detect = + gpio_is_valid(pdata->battery_detect); + bq20z75_device->pdata = pdata; + } + i2c_set_clientdata(client, bq20z75_device); + if (!bq20z75_device->gpio_detect) + goto skip_gpio; + + rc = gpio_request(pdata->battery_detect, dev_name(&client->dev)); + if (rc) { + dev_warn(&client->dev, "Failed to request gpio: %d\n", rc); + bq20z75_device->gpio_detect = false; + goto skip_gpio; + } + + rc = gpio_direction_input(pdata->battery_detect); + if (rc) { + dev_warn(&client->dev, "Failed to get gpio as input: %d\n", rc); + gpio_free(pdata->battery_detect); + bq20z75_device->gpio_detect = false; + goto skip_gpio; + } + + irq = gpio_to_irq(pdata->battery_detect); + if (irq <= 0) { + dev_warn(&client->dev, "Failed to get gpio as irq: %d\n", irq); + gpio_free(pdata->battery_detect); + bq20z75_device->gpio_detect = false; + goto skip_gpio; + } + + rc = request_irq(irq, bq20z75_irq, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, + dev_name(&client->dev), &bq20z75_device->power_supply); + if (rc) { + dev_warn(&client->dev, "Failed to request irq: %d\n", rc); + gpio_free(pdata->battery_detect); + bq20z75_device->gpio_detect = false; + goto skip_gpio; + } + + bq20z75_device->irq = irq; + +skip_gpio: + rc = power_supply_register(&client->dev, &bq20z75_device->power_supply); if (rc) { dev_err(&client->dev, "%s: Failed to register power supply\n", __func__); - kfree(bq20z75_device); - return rc; + goto exit_psupply; } dev_info(&client->dev, "%s: battery gas gauge device registered\n", client->name); return 0; + +exit_psupply: + if (bq20z75_device->irq) + free_irq(bq20z75_device->irq, &bq20z75_device->power_supply); + if (bq20z75_device->gpio_detect) + gpio_free(pdata->battery_detect); + + kfree(bq20z75_device); + + return rc; } -static int bq20z75_remove(struct i2c_client *client) +static int __devexit bq20z75_remove(struct i2c_client *client) { struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client); + if (bq20z75_device->irq) + free_irq(bq20z75_device->irq, &bq20z75_device->power_supply); + if (bq20z75_device->gpio_detect) + gpio_free(bq20z75_device->pdata->battery_detect); + power_supply_unregister(&bq20z75_device->power_supply); kfree(bq20z75_device); bq20z75_device = NULL; @@ -544,7 +642,7 @@ static const struct i2c_device_id bq20z75_id[] = { static struct i2c_driver bq20z75_battery_driver = { .probe = bq20z75_probe, - .remove = bq20z75_remove, + .remove = __devexit_p(bq20z75_remove), .suspend = bq20z75_suspend, .resume = bq20z75_resume, .id_table = bq20z75_id, diff --git a/include/linux/power/bq20z75.h b/include/linux/power/bq20z75.h new file mode 100644 index 000000000000..0e1b8a26a9b1 --- /dev/null +++ b/include/linux/power/bq20z75.h @@ -0,0 +1,37 @@ +/* + * Gas Gauge driver for TI's BQ20Z75 + * + * Copyright (c) 2010, NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __LINUX_POWER_BQ20Z75_H_ +#define __LINUX_POWER_BQ20Z75_H_ + +#include <linux/power_supply.h> +#include <linux/types.h> + +/** + * struct bq20z75_platform_data - platform data for bq20z75 devices + * @battery_detect: GPIO which is used to detect battery presence + * @battery_detect_present: gpio state when battery is present (0 / 1) + */ +struct bq20z75_platform_data { + int battery_detect; + int battery_detect_present; +}; + +#endif -- cgit v1.2.3 From ff28fcef1bedcfbdf49500fee1573dc2f3eedb22 Mon Sep 17 00:00:00 2001 From: Rhyland Klein <rklein@nvidia.com> Date: Mon, 28 Feb 2011 16:55:29 -0800 Subject: bq20z75: Add i2c retry mechanism With the support of platform data, now adding support for option i2c retries on read/write failures. Ths is specified through the optional platform data. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/bq20z75.c | 37 +++++++++++++++++++++++++++++++------ include/linux/power/bq20z75.h | 2 ++ 2 files changed, 33 insertions(+), 6 deletions(-) diff --git a/drivers/power/bq20z75.c b/drivers/power/bq20z75.c index a51e98d74d34..e82d10e25e8c 100644 --- a/drivers/power/bq20z75.c +++ b/drivers/power/bq20z75.c @@ -156,30 +156,55 @@ struct bq20z75_info { static int bq20z75_read_word_data(struct i2c_client *client, u8 address) { - s32 ret; + struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client); + s32 ret = 0; + int retries = 1; + + if (bq20z75_device->pdata) + retries = max(bq20z75_device->pdata->i2c_retry_count + 1, 1); + + while (retries > 0) { + ret = i2c_smbus_read_word_data(client, address); + if (ret >= 0) + break; + retries--; + } - ret = i2c_smbus_read_word_data(client, address); if (ret < 0) { - dev_err(&client->dev, + dev_warn(&client->dev, "%s: i2c read at address 0x%x failed\n", __func__, address); return ret; } + return le16_to_cpu(ret); } static int bq20z75_write_word_data(struct i2c_client *client, u8 address, u16 value) { - s32 ret; + struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client); + s32 ret = 0; + int retries = 1; + + if (bq20z75_device->pdata) + retries = max(bq20z75_device->pdata->i2c_retry_count + 1, 1); + + while (retries > 0) { + ret = i2c_smbus_write_word_data(client, address, + le16_to_cpu(value)); + if (ret >= 0) + break; + retries--; + } - ret = i2c_smbus_write_word_data(client, address, le16_to_cpu(value)); if (ret < 0) { - dev_err(&client->dev, + dev_warn(&client->dev, "%s: i2c write to address 0x%x failed\n", __func__, address); return ret; } + return 0; } diff --git a/include/linux/power/bq20z75.h b/include/linux/power/bq20z75.h index 0e1b8a26a9b1..b0843b68af92 100644 --- a/include/linux/power/bq20z75.h +++ b/include/linux/power/bq20z75.h @@ -28,10 +28,12 @@ * struct bq20z75_platform_data - platform data for bq20z75 devices * @battery_detect: GPIO which is used to detect battery presence * @battery_detect_present: gpio state when battery is present (0 / 1) + * @i2c_retry_count: # of times to retry on i2c IO failure */ struct bq20z75_platform_data { int battery_detect; int battery_detect_present; + int i2c_retry_count; }; #endif -- cgit v1.2.3 From 35c9d267665230cf44445be616d491d3763a5cd3 Mon Sep 17 00:00:00 2001 From: Rhyland Klein <rklein@nvidia.com> Date: Mon, 28 Feb 2011 16:55:31 -0800 Subject: power_supply: Update power_supply_is_watt_property Update the power_supply_is_watt_property function to include POWER_NOW. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- include/linux/power_supply.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 20f23fef63cc..204c18dfdc9e 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -251,6 +251,7 @@ static inline bool power_supply_is_watt_property(enum power_supply_property psp) case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: case POWER_SUPPLY_PROP_VOLTAGE_NOW: case POWER_SUPPLY_PROP_VOLTAGE_AVG: + case POWER_SUPPLY_PROP_POWER_NOW: return 1; default: break; -- cgit v1.2.3 From f3da0dee31689130a06f12f06575c7a5b62421ad Mon Sep 17 00:00:00 2001 From: Axel Lin <axel.lin@gmail.com> Date: Tue, 1 Mar 2011 17:22:33 +0800 Subject: bq20z75: Add MODULE_DEVICE_TABLE The device table is required to load modules based on modaliases. After adding the MODULE_DEVICE_TABLE, below entry will be added to modules.alias: alias i2c:bq20z75 bq20z75 Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/bq20z75.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/power/bq20z75.c b/drivers/power/bq20z75.c index e82d10e25e8c..8018e8cc7a74 100644 --- a/drivers/power/bq20z75.c +++ b/drivers/power/bq20z75.c @@ -664,6 +664,7 @@ static const struct i2c_device_id bq20z75_id[] = { { "bq20z75", 0 }, {} }; +MODULE_DEVICE_TABLE(i2c, bq20z75_id); static struct i2c_driver bq20z75_battery_driver = { .probe = bq20z75_probe, -- cgit v1.2.3 From 84ab16f54bbde67c8c2aabc36b034c91044935cb Mon Sep 17 00:00:00 2001 From: Axel Lin <axel.lin@gmail.com> Date: Tue, 1 Mar 2011 17:23:34 +0800 Subject: ds2782_battery: Add MODULE_DEVICE_TABLE The device table is required to load modules based on modaliases. After adding the MODULE_DEVICE_TABLE, below entries will be added to modules.alias: alias i2c:ds2786 ds2782_battery alias i2c:ds2782 ds2782_battery Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/ds2782_battery.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/power/ds2782_battery.c b/drivers/power/ds2782_battery.c index 6957e8af6449..4d2dc4fa2888 100644 --- a/drivers/power/ds2782_battery.c +++ b/drivers/power/ds2782_battery.c @@ -393,6 +393,7 @@ static const struct i2c_device_id ds278x_id[] = { {"ds2786", DS2786}, {}, }; +MODULE_DEVICE_TABLE(i2c, ds278x_id); static struct i2c_driver ds278x_battery_driver = { .driver = { -- cgit v1.2.3 From dcbc9169ed3ce7cd12328fec8b9eb9f7b91ce130 Mon Sep 17 00:00:00 2001 From: Axel Lin <axel.lin@gmail.com> Date: Tue, 1 Mar 2011 17:24:34 +0800 Subject: z2_battery: Add MODULE_DEVICE_TABLE The device table is required to load modules based on modaliases. After adding the MODULE_DEVICE_TABLE, below entry will be added to modules.alias: alias i2c:aer915 z2_battery Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/z2_battery.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/power/z2_battery.c b/drivers/power/z2_battery.c index e5ed52d71937..81304c0bb9d3 100644 --- a/drivers/power/z2_battery.c +++ b/drivers/power/z2_battery.c @@ -293,6 +293,7 @@ static const struct i2c_device_id z2_batt_id[] = { { "aer915", 0 }, { } }; +MODULE_DEVICE_TABLE(i2c, z2_batt_id); static struct i2c_driver z2_batt_driver = { .driver = { -- cgit v1.2.3 From 198868f35de99e7197829314076e5465c37e4cc5 Mon Sep 17 00:00:00 2001 From: Mingming Cao <cmm@us.ibm.com> Date: Sat, 5 Mar 2011 11:52:45 -0500 Subject: ext4: Use single thread to perform DIO unwritten convertion While running ext4 testing on multiple core, we found there are per cpu ext4-dio-unwritten threads processing conversion from unwritten extents to written for IOs completed from async direct IO patch. Per filesystem is enough, we don't need per cpu threads to work on conversion. Signed-off-by: Mingming Cao <cmm@us.ibm.com> --- fs/ext4/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9eaec22aa088..b357c2700d72 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3514,7 +3514,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) percpu_counter_set(&sbi->s_dirtyblocks_counter, 0); no_journal: - EXT4_SB(sb)->dio_unwritten_wq = create_workqueue("ext4-dio-unwritten"); + EXT4_SB(sb)->dio_unwritten_wq = create_singlethread_workqueue("ext4-dio-unwritten"); if (!EXT4_SB(sb)->dio_unwritten_wq) { printk(KERN_ERR "EXT4-fs: failed to create DIO workqueue\n"); goto failed_mount_wq; -- cgit v1.2.3 From 26525618863afcc4aab8b2a83451d37c6f513460 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 5 Nov 2010 09:56:33 +0100 Subject: drbd: only reset online-verify start sector if verify completed For network hickups during online-verify, on the next verify triggered, we by default want to resume where it left off. After any replication link interruption, there will be a (possibly empty) resync. Do not reset online-verify start sector if some resync completed, that would defeats the purpose. Only reset the start sector once a verify run is completed. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_worker.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index e027446590d3..6cfc5417da8e 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -782,6 +782,7 @@ int drbd_resync_finished(struct drbd_conf *mdev) union drbd_state os, ns; struct drbd_work *w; char *khelper_cmd = NULL; + int verify_done = 0; /* Remove all elements from the resync LRU. Since future actions * might set bits in the (main) bitmap, then the entries in the @@ -818,6 +819,8 @@ int drbd_resync_finished(struct drbd_conf *mdev) spin_lock_irq(&mdev->req_lock); os = mdev->state; + verify_done = (os.conn == C_VERIFY_S || os.conn == C_VERIFY_T); + /* This protects us against multiple calls (that can happen in the presence of application IO), and against connectivity loss just before we arrive here. */ if (os.conn <= C_CONNECTED) @@ -827,8 +830,7 @@ int drbd_resync_finished(struct drbd_conf *mdev) ns.conn = C_CONNECTED; dev_info(DEV, "%s done (total %lu sec; paused %lu sec; %lu K/sec)\n", - (os.conn == C_VERIFY_S || os.conn == C_VERIFY_T) ? - "Online verify " : "Resync", + verify_done ? "Online verify " : "Resync", dt + mdev->rs_paused, mdev->rs_paused, dbdt); n_oos = drbd_bm_total_weight(mdev); @@ -905,7 +907,8 @@ out: mdev->rs_total = 0; mdev->rs_failed = 0; mdev->rs_paused = 0; - mdev->ov_start_sector = 0; + if (verify_done) + mdev->ov_start_sector = 0; drbd_md_sync(mdev); -- cgit v1.2.3 From 30b743a2d532af39c9ed13c85d5473f6f620f6c8 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 5 Nov 2010 09:39:06 +0100 Subject: drbd: improve online-verify progress tracking For a partial (resumed) online-verify, initialize rs_total not to total bits, but to number of bits to check in this run, to match the meaning rs_total has for actual resync. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 23 ++++++++++++----------- drivers/block/drbd/drbd_proc.c | 11 ++++++----- drivers/block/drbd/drbd_receiver.c | 3 ++- 3 files changed, 20 insertions(+), 17 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 8a43ce0edeed..a1a2cb1eadf1 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -961,6 +961,10 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state /* helper for __drbd_set_state */ static void set_ov_position(struct drbd_conf *mdev, enum drbd_conns cs) { + if (mdev->agreed_pro_version < 90) + mdev->ov_start_sector = 0; + mdev->rs_total = drbd_bm_bits(mdev); + mdev->ov_position = 0; if (cs == C_VERIFY_T) { /* starting online verify from an arbitrary position * does not fit well into the existing protocol. @@ -970,11 +974,15 @@ static void set_ov_position(struct drbd_conf *mdev, enum drbd_conns cs) mdev->ov_start_sector = ~(sector_t)0; } else { unsigned long bit = BM_SECT_TO_BIT(mdev->ov_start_sector); - if (bit >= mdev->rs_total) + if (bit >= mdev->rs_total) { mdev->ov_start_sector = BM_BIT_TO_SECT(mdev->rs_total - 1); + mdev->rs_total = 1; + } else + mdev->rs_total -= bit; mdev->ov_position = mdev->ov_start_sector; } + mdev->ov_left = mdev->rs_total; } static void drbd_resume_al(struct drbd_conf *mdev) @@ -1081,7 +1089,7 @@ int __drbd_set_state(struct drbd_conf *mdev, if ((os.conn == C_VERIFY_S || os.conn == C_VERIFY_T) && ns.conn < C_CONNECTED) { mdev->ov_start_sector = - BM_BIT_TO_SECT(mdev->rs_total - mdev->ov_left); + BM_BIT_TO_SECT(drbd_bm_bits(mdev) - mdev->ov_left); dev_info(DEV, "Online Verify reached sector %llu\n", (unsigned long long)mdev->ov_start_sector); } @@ -1106,14 +1114,7 @@ int __drbd_set_state(struct drbd_conf *mdev, unsigned long now = jiffies; int i; - mdev->ov_position = 0; - mdev->rs_total = drbd_bm_bits(mdev); - if (mdev->agreed_pro_version >= 90) - set_ov_position(mdev, ns.conn); - else - mdev->ov_start_sector = 0; - mdev->ov_left = mdev->rs_total - - BM_SECT_TO_BIT(mdev->ov_position); + set_ov_position(mdev, ns.conn); mdev->rs_start = now; mdev->rs_last_events = 0; mdev->rs_last_sect_ev = 0; @@ -1121,7 +1122,7 @@ int __drbd_set_state(struct drbd_conf *mdev, mdev->ov_last_oos_start = 0; for (i = 0; i < DRBD_SYNC_MARKS; i++) { - mdev->rs_mark_left[i] = mdev->rs_total; + mdev->rs_mark_left[i] = mdev->ov_left; mdev->rs_mark_time[i] = now; } diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 7e6ac307e2de..0b20aa837022 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -239,12 +239,13 @@ static int drbd_seq_show(struct seq_file *seq, void *v) mdev->state.conn == C_SYNC_TARGET) drbd_syncer_progress(mdev, seq); - if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T) + if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T) { + unsigned long bm_bits = drbd_bm_bits(mdev); seq_printf(seq, "\t%3d%% %lu/%lu\n", - (int)((mdev->rs_total-mdev->ov_left) / - (mdev->rs_total/100+1)), - mdev->rs_total - mdev->ov_left, - mdev->rs_total); + (int)((bm_bits-mdev->ov_left) / + (bm_bits/100+1)), + bm_bits - mdev->ov_left, bm_bits); + } if (proc_details >= 1 && get_ldev_if_state(mdev, D_FAILED)) { lc_seq_printf_stats(seq, mdev->resync); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 8e68be939deb..88856a7f42a0 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -2005,7 +2005,8 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un mdev->agreed_pro_version >= 90) { mdev->ov_start_sector = sector; mdev->ov_position = sector; - mdev->ov_left = mdev->rs_total - BM_SECT_TO_BIT(sector); + mdev->ov_left = drbd_bm_bits(mdev) - BM_SECT_TO_BIT(sector); + mdev->rs_total = mdev->ov_left; dev_info(DEV, "Online Verify start sector: %llu\n", (unsigned long long)sector); } -- cgit v1.2.3 From de228bba676e1f76e5e5f9444e51bb2db003cefb Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 5 Nov 2010 09:43:15 +0100 Subject: drbd: initialize online-verify progress tracking on verify target For partial (resumed) online verify, initialize the resync step marks once we know what the online verify start sector is. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 88856a7f42a0..3b95eef07546 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -2003,10 +2003,16 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un case P_OV_REQUEST: if (mdev->ov_start_sector == ~(sector_t)0 && mdev->agreed_pro_version >= 90) { + unsigned long now = jiffies; + int i; mdev->ov_start_sector = sector; mdev->ov_position = sector; mdev->ov_left = drbd_bm_bits(mdev) - BM_SECT_TO_BIT(sector); mdev->rs_total = mdev->ov_left; + for (i = 0; i < DRBD_SYNC_MARKS; i++) { + mdev->rs_mark_left[i] = mdev->ov_left; + mdev->rs_mark_time[i] = now; + } dev_info(DEV, "Online Verify start sector: %llu\n", (unsigned long long)sector); } -- cgit v1.2.3 From c6ea14dfa391da58e309d0d5041564b3d9dbb82f Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 5 Nov 2010 09:23:37 +0100 Subject: drbd: factor out advancement of resync marks for progress reporting This is in preparation to unify progress reporting of online-verify and resync requests. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 30 +++++++++++++++++------------- 1 file changed, 17 insertions(+), 13 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index aca302492ff2..b3f18545b469 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -919,6 +919,22 @@ static void drbd_try_clear_on_disk_bm(struct drbd_conf *mdev, sector_t sector, } } +void drbd_advance_rs_marks(struct drbd_conf *mdev, unsigned long still_to_go) +{ + unsigned long now = jiffies; + unsigned long last = mdev->rs_mark_time[mdev->rs_last_mark]; + int next = (mdev->rs_last_mark + 1) % DRBD_SYNC_MARKS; + if (time_after_eq(now, last + DRBD_SYNC_MARK_STEP)) { + if (mdev->rs_mark_left[mdev->rs_last_mark] != still_to_go && + mdev->state.conn != C_PAUSED_SYNC_T && + mdev->state.conn != C_PAUSED_SYNC_S) { + mdev->rs_mark_time[next] = now; + mdev->rs_mark_left[next] = still_to_go; + mdev->rs_last_mark = next; + } + } +} + /* clear the bit corresponding to the piece of storage in question: * size byte of data starting from sector. Only clear a bits of the affected * one ore more _aligned_ BM_BLOCK_SIZE blocks. @@ -969,19 +985,7 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size, */ count = drbd_bm_clear_bits(mdev, sbnr, ebnr); if (count && get_ldev(mdev)) { - unsigned long now = jiffies; - unsigned long last = mdev->rs_mark_time[mdev->rs_last_mark]; - int next = (mdev->rs_last_mark + 1) % DRBD_SYNC_MARKS; - if (time_after_eq(now, last + DRBD_SYNC_MARK_STEP)) { - unsigned long tw = drbd_bm_total_weight(mdev); - if (mdev->rs_mark_left[mdev->rs_last_mark] != tw && - mdev->state.conn != C_PAUSED_SYNC_T && - mdev->state.conn != C_PAUSED_SYNC_S) { - mdev->rs_mark_time[next] = now; - mdev->rs_mark_left[next] = tw; - mdev->rs_last_mark = next; - } - } + drbd_advance_rs_marks(mdev, drbd_bm_total_weight(mdev)); spin_lock_irqsave(&mdev->al_lock, flags); drbd_try_clear_on_disk_bm(mdev, sector, count, TRUE); spin_unlock_irqrestore(&mdev->al_lock, flags); -- cgit v1.2.3 From ea5442aff68c559c951373739201721185191748 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 5 Nov 2010 09:48:01 +0100 Subject: drbd: advance progress step marks for online-verify Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 1 + drivers/block/drbd/drbd_receiver.c | 8 +++++++- drivers/block/drbd/drbd_worker.c | 8 +++++++- 3 files changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index b0bd27dfc1e8..6cba131011d5 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1619,6 +1619,7 @@ extern int drbd_rs_del_all(struct drbd_conf *mdev); extern void drbd_rs_failed_io(struct drbd_conf *mdev, sector_t sector, int size); extern int drbd_al_read_log(struct drbd_conf *mdev, struct drbd_backing_dev *); +extern void drbd_advance_rs_marks(struct drbd_conf *mdev, unsigned long still_to_go); extern void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size, const char *file, const unsigned int line); #define drbd_set_in_sync(mdev, sector, size) \ diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 3b95eef07546..10db70a23376 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -4340,7 +4340,13 @@ static int got_OVResult(struct drbd_conf *mdev, struct p_header80 *h) drbd_rs_complete_io(mdev, sector); dec_rs_pending(mdev); - if (--mdev->ov_left == 0) { + --mdev->ov_left; + + /* let's advance progress step marks only for every other megabyte */ + if ((mdev->ov_left & 0x200) == 0x200) + drbd_advance_rs_marks(mdev, mdev->ov_left); + + if (mdev->ov_left == 0) { w = kmalloc(sizeof(*w), GFP_NOIO); if (w) { w->cb = w_ov_finished; diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 6cfc5417da8e..a050eb0d93ba 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1185,7 +1185,13 @@ int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel) drbd_free_ee(mdev, e); - if (--mdev->ov_left == 0) { + --mdev->ov_left; + + /* let's advance progress step marks only for every other megabyte */ + if ((mdev->ov_left & 0x200) == 0x200) + drbd_advance_rs_marks(mdev, mdev->ov_left); + + if (mdev->ov_left == 0) { ov_oos_print(mdev); drbd_resync_finished(mdev); } -- cgit v1.2.3 From 439d595379f87ec95249da21122eb085866f8ba9 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 5 Nov 2010 09:52:46 +0100 Subject: drbd: show progress bar and ETA for online-verify Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 5 +++- drivers/block/drbd/drbd_proc.c | 52 ++++++++++++++++++++++++++++++++---------- 2 files changed, 44 insertions(+), 13 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 6cba131011d5..7131bf2af6ae 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -2157,7 +2157,10 @@ static inline void drbd_get_syncer_progress(struct drbd_conf *mdev, * units of BM_BLOCK_SIZE. * for the percentage, we don't care. */ - *bits_left = drbd_bm_total_weight(mdev) - mdev->rs_failed; + if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T) + *bits_left = mdev->ov_left; + else + *bits_left = drbd_bm_total_weight(mdev) - mdev->rs_failed; /* >> 10 to prevent overflow, * +1 to prevent division by zero */ if (*bits_left > mdev->rs_total) { diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 0b20aa837022..0ec6f4b6a4a8 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -45,6 +45,19 @@ const struct file_operations drbd_proc_fops = { .release = single_release, }; +void seq_printf_with_thousands_grouping(struct seq_file *seq, long v) +{ + /* v is in kB/sec. We don't expect TiByte/sec yet. */ + if (unlikely(v >= 1000000)) { + /* cool: > GiByte/s */ + seq_printf(seq, "%ld,", v / 1000000); + v /= 1000000; + seq_printf(seq, "%03ld,%03ld", v/1000, v % 1000); + } else if (likely(v >= 1000)) + seq_printf(seq, "%ld,%03ld", v/1000, v % 1000); + else + seq_printf(seq, "%ld", v); +} /*lge * progress bars shamelessly adapted from driver/md/md.c @@ -94,6 +107,7 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) /* Rolling marks. last_mark+1 may just now be modified. last_mark+2 is * at least (DRBD_SYNC_MARKS-2)*DRBD_SYNC_MARK_STEP old, and has at * least DRBD_SYNC_MARK_STEP time before it will be modified. */ + /* ------------------------ ~18s average ------------------------ */ i = (mdev->rs_last_mark + 2) % DRBD_SYNC_MARKS; dt = (jiffies - mdev->rs_mark_time[i]) / HZ; if (dt > (DRBD_SYNC_MARK_STEP * DRBD_SYNC_MARKS)) @@ -107,14 +121,29 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) seq_printf(seq, "finish: %lu:%02lu:%02lu", rt / 3600, (rt % 3600) / 60, rt % 60); - /* current speed average over (SYNC_MARKS * SYNC_MARK_STEP) jiffies */ dbdt = Bit2KB(db/dt); - if (dbdt > 1000) - seq_printf(seq, " speed: %ld,%03ld", - dbdt/1000, dbdt % 1000); - else - seq_printf(seq, " speed: %ld", dbdt); + seq_printf(seq, " speed: "); + seq_printf_with_thousands_grouping(seq, dbdt); + seq_printf(seq, " ("); + /* ------------------------- ~3s average ------------------------ */ + if (proc_details >= 1) { + /* this is what drbd_rs_should_slow_down() uses */ + i = (mdev->rs_last_mark + DRBD_SYNC_MARKS-1) % DRBD_SYNC_MARKS; + dt = (jiffies - mdev->rs_mark_time[i]) / HZ; + if (dt > (DRBD_SYNC_MARK_STEP * DRBD_SYNC_MARKS)) + stalled = 1; + + if (!dt) + dt++; + db = mdev->rs_mark_left[i] - rs_left; + rt = (dt * (rs_left / (db/100+1)))/100; /* seconds */ + + dbdt = Bit2KB(db/dt); + seq_printf_with_thousands_grouping(seq, dbdt); + seq_printf(seq, " -- "); + } + /* --------------------- long term average ---------------------- */ /* mean speed since syncer started * we do account for PausedSync periods */ dt = (jiffies - mdev->rs_start - mdev->rs_paused) / HZ; @@ -122,11 +151,8 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) dt = 1; db = mdev->rs_total - rs_left; dbdt = Bit2KB(db/dt); - if (dbdt > 1000) - seq_printf(seq, " (%ld,%03ld)", - dbdt/1000, dbdt % 1000); - else - seq_printf(seq, " (%ld)", dbdt); + seq_printf_with_thousands_grouping(seq, dbdt); + seq_printf(seq, ")"); if (mdev->state.conn == C_SYNC_TARGET) { if (mdev->c_sync_rate > 1000) @@ -236,7 +262,9 @@ static int drbd_seq_show(struct seq_file *seq, void *v) Bit2KB(drbd_bm_total_weight(mdev))); } if (mdev->state.conn == C_SYNC_SOURCE || - mdev->state.conn == C_SYNC_TARGET) + mdev->state.conn == C_SYNC_TARGET || + mdev->state.conn == C_VERIFY_S || + mdev->state.conn == C_VERIFY_T) drbd_syncer_progress(mdev, seq); if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T) { -- cgit v1.2.3 From 9bd28d3c90c80c7ec46085de281b38f67331da41 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 5 Nov 2010 09:55:18 +0100 Subject: drbd: factor out drbd_rs_controller_reset Preparation patch to be able to use the auto-throttling resync controller for online-verify requests as well. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 1 + drivers/block/drbd/drbd_worker.c | 19 ++++++++++++------- 2 files changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 7131bf2af6ae..85207b275e41 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1499,6 +1499,7 @@ extern int drbd_resync_finished(struct drbd_conf *mdev); extern int drbd_md_sync_page_io(struct drbd_conf *mdev, struct drbd_backing_dev *bdev, sector_t sector, int rw); extern void drbd_ov_oos_found(struct drbd_conf*, sector_t, int); +extern void drbd_rs_controller_reset(struct drbd_conf *mdev); static inline void ov_oos_print(struct drbd_conf *mdev) { diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index a050eb0d93ba..971e9b3b13ba 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1439,6 +1439,17 @@ int drbd_alter_sa(struct drbd_conf *mdev, int na) return retcode; } +void drbd_rs_controller_reset(struct drbd_conf *mdev) +{ + atomic_set(&mdev->rs_sect_in, 0); + atomic_set(&mdev->rs_sect_ev, 0); + mdev->rs_in_flight = 0; + mdev->rs_planed = 0; + spin_lock(&mdev->peer_seq_lock); + fifo_set(&mdev->rs_plan_s, 0); + spin_unlock(&mdev->peer_seq_lock); +} + /** * drbd_start_resync() - Start the resync process * @mdev: DRBD device. @@ -1556,13 +1567,7 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) drbd_resync_finished(mdev); } - atomic_set(&mdev->rs_sect_in, 0); - atomic_set(&mdev->rs_sect_ev, 0); - mdev->rs_in_flight = 0; - mdev->rs_planed = 0; - spin_lock(&mdev->peer_seq_lock); - fifo_set(&mdev->rs_plan_s, 0); - spin_unlock(&mdev->peer_seq_lock); + drbd_rs_controller_reset(mdev); /* ns.conn may already be != mdev->state.conn, * we may have been paused in between, or become paused until * the timer triggers. -- cgit v1.2.3 From e65f440d474d7d6a6fd8a2c844e851d8c96ed9c5 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 5 Nov 2010 10:04:07 +0100 Subject: drbd: factor out drbd_rs_number_requests Preparation patch to be able to use the auto-throttling resync controller for online-verify requests as well. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_worker.c | 61 +++++++++++++++++++--------------------- 1 file changed, 29 insertions(+), 32 deletions(-) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 971e9b3b13ba..6d111c8515f7 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -492,6 +492,32 @@ int drbd_rs_controller(struct drbd_conf *mdev) return req_sect; } +int drbd_rs_number_requests(struct drbd_conf *mdev) +{ + int number; + if (mdev->rs_plan_s.size) { /* mdev->sync_conf.c_plan_ahead */ + number = drbd_rs_controller(mdev) >> (BM_BLOCK_SHIFT - 9); + mdev->c_sync_rate = number * HZ * (BM_BLOCK_SIZE / 1024) / SLEEP_TIME; + } else { + mdev->c_sync_rate = mdev->sync_conf.rate; + number = SLEEP_TIME * mdev->c_sync_rate / ((BM_BLOCK_SIZE / 1024) * HZ); + } + + /* Throttle resync on lower level disk activity, which may also be + * caused by application IO on Primary/SyncTarget. + * Keep this after the call to drbd_rs_controller, as that assumes + * to be called as precisely as possible every SLEEP_TIME, + * and would be confused otherwise. */ + if (number && drbd_rs_should_slow_down(mdev)) { + mdev->c_sync_rate = 1; + number = 0; + } + + /* ignore the amount of pending requests, the resync controller should + * throttle down to incoming reply rate soon enough anyways. */ + return number; +} + int w_make_resync_request(struct drbd_conf *mdev, struct drbd_work *w, int cancel) { @@ -499,7 +525,7 @@ int w_make_resync_request(struct drbd_conf *mdev, sector_t sector; const sector_t capacity = drbd_get_capacity(mdev->this_bdev); int max_segment_size; - int number, rollback_i, size, pe, mx; + int number, rollback_i, size; int align, queued, sndbuf; int i = 0; @@ -537,39 +563,10 @@ int w_make_resync_request(struct drbd_conf *mdev, mdev->agreed_pro_version < 94 ? queue_max_segment_size(mdev->rq_queue) : mdev->agreed_pro_version < 95 ? DRBD_MAX_SIZE_H80_PACKET : DRBD_MAX_SEGMENT_SIZE; - if (mdev->rs_plan_s.size) { /* mdev->sync_conf.c_plan_ahead */ - number = drbd_rs_controller(mdev) >> (BM_BLOCK_SHIFT - 9); - mdev->c_sync_rate = number * HZ * (BM_BLOCK_SIZE / 1024) / SLEEP_TIME; - } else { - mdev->c_sync_rate = mdev->sync_conf.rate; - number = SLEEP_TIME * mdev->c_sync_rate / ((BM_BLOCK_SIZE / 1024) * HZ); - } - - /* Throttle resync on lower level disk activity, which may also be - * caused by application IO on Primary/SyncTarget. - * Keep this after the call to drbd_rs_controller, as that assumes - * to be called as precisely as possible every SLEEP_TIME, - * and would be confused otherwise. */ - if (drbd_rs_should_slow_down(mdev)) + number = drbd_rs_number_requests(mdev); + if (number == 0) goto requeue; - mutex_lock(&mdev->data.mutex); - if (mdev->data.socket) - mx = mdev->data.socket->sk->sk_rcvbuf / sizeof(struct p_block_req); - else - mx = 1; - mutex_unlock(&mdev->data.mutex); - - /* For resync rates >160MB/sec, allow more pending RS requests */ - if (number > mx) - mx = number; - - /* Limit the number of pending RS requests to no more than the peer's receive buffer */ - pe = atomic_read(&mdev->rs_pending_cnt); - if ((pe + number) > mx) { - number = mx - pe; - } - for (i = 0; i < number; i++) { /* Stop generating RS requests, when half of the send buffer is filled */ mutex_lock(&mdev->data.mutex); -- cgit v1.2.3 From 2649f0809f55e4df98c333a2b85c6fc8fee04804 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 5 Nov 2010 10:05:47 +0100 Subject: drbd: use the resync controller for online-verify requests as well Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 2 ++ drivers/block/drbd/drbd_proc.c | 3 ++- drivers/block/drbd/drbd_receiver.c | 10 ++++++++-- drivers/block/drbd/drbd_worker.c | 8 ++------ 4 files changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index a1a2cb1eadf1..6afb81f807bd 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1126,6 +1126,8 @@ int __drbd_set_state(struct drbd_conf *mdev, mdev->rs_mark_time[i] = now; } + drbd_rs_controller_reset(mdev); + if (ns.conn == C_VERIFY_S) { dev_info(DEV, "Starting Online Verify from sector %llu\n", (unsigned long long)mdev->ov_position); diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 0ec6f4b6a4a8..fab3fde3477b 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -154,7 +154,8 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) seq_printf_with_thousands_grouping(seq, dbdt); seq_printf(seq, ")"); - if (mdev->state.conn == C_SYNC_TARGET) { + if (mdev->state.conn == C_SYNC_TARGET || + mdev->state.conn == C_VERIFY_S) { if (mdev->c_sync_rate > 1000) seq_printf(seq, " want: %d,%03d", mdev->c_sync_rate / 1000, mdev->c_sync_rate % 1000); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 10db70a23376..1c56af03c38b 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1883,8 +1883,12 @@ int drbd_rs_should_slow_down(struct drbd_conf *mdev) /* sync speed average over the last 2*DRBD_SYNC_MARK_STEP, * approx. */ - i = (mdev->rs_last_mark + DRBD_SYNC_MARKS-2) % DRBD_SYNC_MARKS; - rs_left = drbd_bm_total_weight(mdev) - mdev->rs_failed; + i = (mdev->rs_last_mark + DRBD_SYNC_MARKS-1) % DRBD_SYNC_MARKS; + + if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T) + rs_left = mdev->ov_left; + else + rs_left = drbd_bm_total_weight(mdev) - mdev->rs_failed; dt = ((long)jiffies - (long)mdev->rs_mark_time[i]) / HZ; if (!dt) @@ -1992,6 +1996,8 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un D_ASSERT(mdev->agreed_pro_version >= 89); e->w.cb = w_e_end_csum_rs_req; } else if (cmd == P_OV_REPLY) { + /* track progress, we may need to throttle */ + atomic_add(size >> 9, &mdev->rs_sect_in); e->w.cb = w_e_end_ov_reply; dec_rs_pending(mdev); /* drbd_rs_begin_io done when we sent this request, diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 6d111c8515f7..af805efc94d7 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -708,11 +708,7 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca return 0; } - number = SLEEP_TIME*mdev->sync_conf.rate / ((BM_BLOCK_SIZE/1024)*HZ); - if (atomic_read(&mdev->rs_pending_cnt) > number) - goto requeue; - - number -= atomic_read(&mdev->rs_pending_cnt); + number = drbd_rs_number_requests(mdev); sector = mdev->ov_position; for (i = 0; i < number; i++) { @@ -741,11 +737,11 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca mdev->ov_position = sector; requeue: + mdev->rs_in_flight += (i << (BM_BLOCK_SHIFT - 9)); mod_timer(&mdev->resync_timer, jiffies + SLEEP_TIME); return 1; } - int w_ov_finished(struct drbd_conf *mdev, struct drbd_work *w, int cancel) { kfree(w); -- cgit v1.2.3 From 18edc0b9d7dac2f74117a0bdb98f2e705eb74d82 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Tue, 9 Nov 2010 14:12:10 +0100 Subject: drbd: fix potential wrap of 32bit oos:%lu display in /proc/drbd When converting bits (4k resolution, still) to kB, we shift left. If it was a large number of bits on a 32bit box (>= 4 TiB storage), we may wrap the 32bit unsigned long base type, resulting in incorrect display. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_proc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index fab3fde3477b..07368b75392a 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -259,8 +259,9 @@ static int drbd_seq_show(struct seq_file *seq, void *v) mdev->epochs, write_ordering_chars[mdev->write_ordering] ); - seq_printf(seq, " oos:%lu\n", - Bit2KB(drbd_bm_total_weight(mdev))); + seq_printf(seq, " oos:%llu\n", + Bit2KB((unsigned long long) + drbd_bm_total_weight(mdev))); } if (mdev->state.conn == C_SYNC_SOURCE || mdev->state.conn == C_SYNC_TARGET || -- cgit v1.2.3 From 5f9915bbb8e0975ce99f893c29b8e89100b33399 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Tue, 9 Nov 2010 14:15:24 +0100 Subject: drbd: further converge progress display of resync and online-verify Show progressbar and ETA always, with proc_details >= 1 also show the current sector position for both resync and online-verify on both nodes. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_proc.c | 46 ++++++++++++++++++++++---------------- drivers/block/drbd/drbd_receiver.c | 4 ++++ 2 files changed, 31 insertions(+), 19 deletions(-) diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 07368b75392a..329b66a91e44 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -84,7 +84,12 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) seq_printf(seq, "."); seq_printf(seq, "] "); - seq_printf(seq, "sync'ed:%3u.%u%% ", res / 10, res % 10); + if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T) + seq_printf(seq, "verified:"); + else + seq_printf(seq, "sync'ed:"); + seq_printf(seq, "%3u.%u%% ", res / 10, res % 10); + /* if more than 1 GB display in MB */ if (mdev->rs_total > 0x100000L) seq_printf(seq, "(%lu/%lu)M\n\t", @@ -130,14 +135,9 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) /* this is what drbd_rs_should_slow_down() uses */ i = (mdev->rs_last_mark + DRBD_SYNC_MARKS-1) % DRBD_SYNC_MARKS; dt = (jiffies - mdev->rs_mark_time[i]) / HZ; - if (dt > (DRBD_SYNC_MARK_STEP * DRBD_SYNC_MARKS)) - stalled = 1; - if (!dt) dt++; db = mdev->rs_mark_left[i] - rs_left; - rt = (dt * (rs_left / (db/100+1)))/100; /* seconds */ - dbdt = Bit2KB(db/dt); seq_printf_with_thousands_grouping(seq, dbdt); seq_printf(seq, " -- "); @@ -156,13 +156,29 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) if (mdev->state.conn == C_SYNC_TARGET || mdev->state.conn == C_VERIFY_S) { - if (mdev->c_sync_rate > 1000) - seq_printf(seq, " want: %d,%03d", - mdev->c_sync_rate / 1000, mdev->c_sync_rate % 1000); - else - seq_printf(seq, " want: %d", mdev->c_sync_rate); + seq_printf(seq, " want: "); + seq_printf_with_thousands_grouping(seq, mdev->c_sync_rate); } seq_printf(seq, " K/sec%s\n", stalled ? " (stalled)" : ""); + + if (proc_details >= 1) { + /* 64 bit: + * we convert to sectors in the display below. */ + u64 bm_bits = drbd_bm_bits(mdev); + u64 bit_pos; + if (mdev->state.conn == C_VERIFY_S || + mdev->state.conn == C_VERIFY_T) + bit_pos = bm_bits - mdev->ov_left; + else + bit_pos = mdev->bm_resync_fo; + /* Total sectors may be slightly off for oddly + * sized devices. So what. */ + seq_printf(seq, + "\t%3d%% sector pos: %llu/%llu\n", + (int)(bit_pos / (bm_bits/100+1)), + (unsigned long long) BM_BIT_TO_SECT(bit_pos), + (unsigned long long) BM_BIT_TO_SECT(bm_bits)); + } } static void resync_dump_detail(struct seq_file *seq, struct lc_element *e) @@ -269,14 +285,6 @@ static int drbd_seq_show(struct seq_file *seq, void *v) mdev->state.conn == C_VERIFY_T) drbd_syncer_progress(mdev, seq); - if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T) { - unsigned long bm_bits = drbd_bm_bits(mdev); - seq_printf(seq, "\t%3d%% %lu/%lu\n", - (int)((bm_bits-mdev->ov_left) / - (bm_bits/100+1)), - bm_bits - mdev->ov_left, bm_bits); - } - if (proc_details >= 1 && get_ldev_if_state(mdev, D_FAILED)) { lc_seq_printf_stats(seq, mdev->resync); lc_seq_printf_stats(seq, mdev->act_log); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 1c56af03c38b..d0e19a242af4 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1974,6 +1974,8 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un case P_RS_DATA_REQUEST: e->w.cb = w_e_end_rsdata_req; fault_type = DRBD_FAULT_RS_RD; + /* used in the sector offset progress display */ + mdev->bm_resync_fo = BM_SECT_TO_BIT(sector); break; case P_OV_REPLY: @@ -1995,6 +1997,8 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un if (cmd == P_CSUM_RS_REQUEST) { D_ASSERT(mdev->agreed_pro_version >= 89); e->w.cb = w_e_end_csum_rs_req; + /* used in the sector offset progress display */ + mdev->bm_resync_fo = BM_SECT_TO_BIT(sector); } else if (cmd == P_OV_REPLY) { /* track progress, we may need to throttle */ atomic_add(size >> 9, &mdev->rs_sect_in); -- cgit v1.2.3 From 470be44ab1841f3261a4d758450a42e6b79e9551 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 10 Nov 2010 10:36:52 +0100 Subject: drbd: detect modification of in-flight buffers With data-integrity digest enabled, double-check on the sending side for modifications by upper layers of buffers under write back, so we can tell it appart from corruption on the "wire". Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 28 +++++++++++++++++++++++++++- drivers/block/drbd/drbd_receiver.c | 3 ++- 2 files changed, 29 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 6afb81f807bd..451fc36a85cb 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2537,10 +2537,36 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req) ok = drbd_send(mdev, mdev->data.socket, dgb, dgs, 0); } if (ok) { - if (mdev->net_conf->wire_protocol == DRBD_PROT_A) + /* For protocol A, we have to memcpy the payload into + * socket buffers, as we may complete right away + * as soon as we handed it over to tcp, at which point the data + * pages may become invalid. + * + * For data-integrity enabled, we copy it as well, so we can be + * sure that even if the bio pages may still be modified, it + * won't change the data on the wire, thus if the digest checks + * out ok after sending on this side, but does not fit on the + * receiving side, we sure have detected corruption elsewhere. + */ + if (mdev->net_conf->wire_protocol == DRBD_PROT_A || dgs) ok = _drbd_send_bio(mdev, req->master_bio); else ok = _drbd_send_zc_bio(mdev, req->master_bio); + + /* double check digest, sometimes buffers have been modified in flight. */ + if (dgs > 0 && dgs <= 64) { + /* 64 byte, 512 bit, is the larges digest size + * currently supported in kernel crypto. */ + unsigned char digest[64]; + drbd_csum_bio(mdev, mdev->integrity_w_tfm, req->master_bio, digest); + if (memcmp(mdev->int_dig_out, digest, dgs)) { + dev_warn(DEV, + "Digest mismatch, buffer modified by upper layers during write: %llus +%u\n", + (unsigned long long)req->sector, req->size); + } + } /* else if (dgs > 64) { + ... Be noisy about digest too large ... + } */ } drbd_put_data_sock(mdev); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index d0e19a242af4..ca213c6e5f9d 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1281,7 +1281,8 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __ if (dgs) { drbd_csum_ee(mdev, mdev->integrity_r_tfm, e, dig_vv); if (memcmp(dig_in, dig_vv, dgs)) { - dev_err(DEV, "Digest integrity check FAILED.\n"); + dev_err(DEV, "Digest integrity check FAILED: %llus +%u\n", + (unsigned long long)sector, data_size); drbd_bcast_ee(mdev, "digest failed", dgs, dig_in, dig_vv, e); drbd_free_ee(mdev, e); -- cgit v1.2.3 From 3129b1b9aed15bbebde1b2a5719434273feb295d Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 11 Nov 2010 10:47:05 +0100 Subject: drbd: debug: limit nelink-broadcast of request on digest mismatch to 32k We used to be limited to 32k requests, but have increased that limit to 128k now. This part of the code can only deal with 32k, it would scramble arbitrary pages for larger requests. As it is used for debugging only anyways, it is ok to simply truncate the dumped data here. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 8cbfaa687d72..dad559810ed6 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2398,10 +2398,11 @@ void drbd_bcast_ee(struct drbd_conf *mdev, tl = tl_add_int(tl, T_ee_sector, &e->sector); tl = tl_add_int(tl, T_ee_block_id, &e->block_id); + /* dump the first 32k */ + len = min_t(unsigned, e->size, 32 << 10); put_unaligned(T_ee_data, tl++); - put_unaligned(e->size, tl++); + put_unaligned(len, tl++); - len = e->size; page = e->pages; page_chain_for_each(page) { void *d = kmap_atomic(page, KM_USER0); @@ -2410,6 +2411,8 @@ void drbd_bcast_ee(struct drbd_conf *mdev, kunmap_atomic(d, KM_USER0); tl = (unsigned short*)((char*)tl + l); len -= l; + if (len == 0) + break; } put_unaligned(TT_END, tl++); /* Close the tag list */ -- cgit v1.2.3 From 1816a2b47afae838e53a177d5d166cc7be97d6b5 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 11 Nov 2010 15:19:07 +0100 Subject: drbd: properly use max_hw_sectors to limit the our bio size To ease tracking of bios in some hash tables, we want it to not cross certain boundaries (128k, used to be 32k). We limit the maximum bio size using queue parameters. Historically some defines and variables we use there have been named max_segment_size, which was misguided. Rename them to max_bio_size, and use [blk_]queue_max_hw_sectors where appropriate. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 8 ++++---- drivers/block/drbd/drbd_int.h | 4 ++-- drivers/block/drbd/drbd_main.c | 6 +++--- drivers/block/drbd/drbd_nl.c | 27 +++++++++++++-------------- drivers/block/drbd/drbd_receiver.c | 18 +++++++++--------- drivers/block/drbd/drbd_req.c | 8 ++++---- drivers/block/drbd/drbd_worker.c | 12 ++++++------ 7 files changed, 41 insertions(+), 42 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index b3f18545b469..b4adb58c7472 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -952,7 +952,7 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size, int wake_up = 0; unsigned long flags; - if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_SEGMENT_SIZE) { + if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) { dev_err(DEV, "drbd_set_in_sync: sector=%llus size=%d nonsense!\n", (unsigned long long)sector, size); return; @@ -1002,7 +1002,7 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size, /* * this is intended to set one request worth of data out of sync. * affects at least 1 bit, - * and at most 1+DRBD_MAX_SEGMENT_SIZE/BM_BLOCK_SIZE bits. + * and at most 1+DRBD_MAX_BIO_SIZE/BM_BLOCK_SIZE bits. * * called by tl_clear and drbd_send_dblock (==drbd_make_request). * so this can be _any_ process. @@ -1015,7 +1015,7 @@ void __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size, unsigned int enr, count; struct lc_element *e; - if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_SEGMENT_SIZE) { + if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) { dev_err(DEV, "sector: %llus, size: %d\n", (unsigned long long)sector, size); return; @@ -1387,7 +1387,7 @@ void drbd_rs_failed_io(struct drbd_conf *mdev, sector_t sector, int size) sector_t esector, nr_sectors; int wake_up = 0; - if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_SEGMENT_SIZE) { + if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) { dev_err(DEV, "drbd_rs_failed_io: sector=%llus size=%d nonsense!\n", (unsigned long long)sector, size); return; diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 85207b275e41..bcba2742cfba 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -512,7 +512,7 @@ struct p_sizes { u64 d_size; /* size of disk */ u64 u_size; /* user requested size */ u64 c_size; /* current exported size */ - u32 max_segment_size; /* Maximal size of a BIO */ + u32 max_bio_size; /* Maximal size of a BIO */ u16 queue_order_type; /* not yet implemented in DRBD*/ u16 dds_flags; /* use enum dds_flags here. */ } __packed; @@ -1398,7 +1398,7 @@ struct bm_extent { * With a value of 8 all IO in one 128K block make it to the same slot of the * hash table. */ #define HT_SHIFT 8 -#define DRBD_MAX_SEGMENT_SIZE (1U<<(9+HT_SHIFT)) +#define DRBD_MAX_BIO_SIZE (1U<<(9+HT_SHIFT)) #define DRBD_MAX_SIZE_H80_PACKET (1 << 15) /* The old header only allows packets up to 32Kib data */ diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 451fc36a85cb..9d9c2ed31e9a 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1924,7 +1924,7 @@ int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags fl p.d_size = cpu_to_be64(d_size); p.u_size = cpu_to_be64(u_size); p.c_size = cpu_to_be64(trigger_reply ? 0 : drbd_get_capacity(mdev->this_bdev)); - p.max_segment_size = cpu_to_be32(queue_max_segment_size(mdev->rq_queue)); + p.max_bio_size = cpu_to_be32(queue_max_hw_sectors(mdev->rq_queue) << 9); p.queue_order_type = cpu_to_be16(q_order_type); p.dds_flags = cpu_to_be16(flags); @@ -2952,7 +2952,7 @@ static void drbd_destroy_mempools(void) static int drbd_create_mempools(void) { struct page *page; - const int number = (DRBD_MAX_SEGMENT_SIZE/PAGE_SIZE) * minor_count; + const int number = (DRBD_MAX_BIO_SIZE/PAGE_SIZE) * minor_count; int i; /* prepare our caches and mempools */ @@ -3218,7 +3218,7 @@ struct drbd_conf *drbd_new_device(unsigned int minor) q->backing_dev_info.congested_data = mdev; blk_queue_make_request(q, drbd_make_request_26); - blk_queue_max_segment_size(q, DRBD_MAX_SEGMENT_SIZE); + blk_queue_max_hw_sectors(q, DRBD_MAX_BIO_SIZE >> 9); blk_queue_bounce_limit(q, BLK_BOUNCE_ANY); blk_queue_merge_bvec(q, drbd_merge_bvec); q->queue_lock = &mdev->req_lock; diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index dad559810ed6..9e27d82a9a19 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -765,22 +765,21 @@ static int drbd_check_al_size(struct drbd_conf *mdev) return 0; } -void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_seg_s) __must_hold(local) +void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_bio_size) __must_hold(local) { struct request_queue * const q = mdev->rq_queue; struct request_queue * const b = mdev->ldev->backing_bdev->bd_disk->queue; int max_segments = mdev->ldev->dc.max_bio_bvecs; + int max_hw_sectors = min(queue_max_hw_sectors(b), max_bio_size >> 9); - max_seg_s = min(queue_max_sectors(b) * queue_logical_block_size(b), max_seg_s); - - blk_queue_max_hw_sectors(q, max_seg_s >> 9); - blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS); - blk_queue_max_segment_size(q, max_seg_s); blk_queue_logical_block_size(q, 512); - blk_queue_segment_boundary(q, PAGE_SIZE-1); - blk_stack_limits(&q->limits, &b->limits, 0); + blk_queue_max_hw_sectors(q, max_hw_sectors); + /* This is the workaround for "bio would need to, but cannot, be split" */ + blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS); + blk_queue_segment_boundary(q, PAGE_CACHE_SIZE-1); + blk_queue_stack_limits(q, b); - dev_info(DEV, "max_segment_size ( = BIO size ) = %u\n", queue_max_segment_size(q)); + dev_info(DEV, "max BIO size = %u\n", queue_max_hw_sectors(q) << 9); if (q->backing_dev_info.ra_pages != b->backing_dev_info.ra_pages) { dev_info(DEV, "Adjusting my ra_pages to backing device's (%lu -> %lu)\n", @@ -858,7 +857,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp struct block_device *bdev; struct lru_cache *resync_lru = NULL; union drbd_state ns, os; - unsigned int max_seg_s; + unsigned int max_bio_size; int rv; int cp_discovered = 0; int logical_block_size; @@ -1109,20 +1108,20 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp mdev->read_cnt = 0; mdev->writ_cnt = 0; - max_seg_s = DRBD_MAX_SEGMENT_SIZE; + max_bio_size = DRBD_MAX_BIO_SIZE; if (mdev->state.conn == C_CONNECTED) { /* We are Primary, Connected, and now attach a new local * backing store. We must not increase the user visible maximum * bio size on this device to something the peer may not be * able to handle. */ if (mdev->agreed_pro_version < 94) - max_seg_s = queue_max_segment_size(mdev->rq_queue); + max_bio_size = queue_max_hw_sectors(mdev->rq_queue) << 9; else if (mdev->agreed_pro_version == 94) - max_seg_s = DRBD_MAX_SIZE_H80_PACKET; + max_bio_size = DRBD_MAX_SIZE_H80_PACKET; /* else: drbd 8.3.9 and later, stay with default */ } - drbd_setup_queue_param(mdev, max_seg_s); + drbd_setup_queue_param(mdev, max_bio_size); /* If I am currently not R_PRIMARY, * but meta data primary indicator is set, diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index ca213c6e5f9d..79e7b57006b1 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -277,7 +277,7 @@ static void drbd_pp_free(struct drbd_conf *mdev, struct page *page, int is_net) atomic_t *a = is_net ? &mdev->pp_in_use_by_net : &mdev->pp_in_use; int i; - if (drbd_pp_vacant > (DRBD_MAX_SEGMENT_SIZE/PAGE_SIZE)*minor_count) + if (drbd_pp_vacant > (DRBD_MAX_BIO_SIZE/PAGE_SIZE)*minor_count) i = page_chain_free(page); else { struct page *tmp; @@ -1240,7 +1240,7 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __ data_size -= dgs; ERR_IF(data_size & 0x1ff) return NULL; - ERR_IF(data_size > DRBD_MAX_SEGMENT_SIZE) return NULL; + ERR_IF(data_size > DRBD_MAX_BIO_SIZE) return NULL; /* even though we trust out peer, * we sometimes have to double check. */ @@ -1917,7 +1917,7 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un sector = be64_to_cpu(p->sector); size = be32_to_cpu(p->blksize); - if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_SEGMENT_SIZE) { + if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) { dev_err(DEV, "%s:%d: sector: %llus, size: %u\n", __FILE__, __LINE__, (unsigned long long)sector, size); return FALSE; @@ -2897,7 +2897,7 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned { struct p_sizes *p = &mdev->data.rbuf.sizes; enum determine_dev_size dd = unchanged; - unsigned int max_seg_s; + unsigned int max_bio_size; sector_t p_size, p_usize, my_usize; int ldsc = 0; /* local disk size changed */ enum dds_flags ddsf; @@ -2970,14 +2970,14 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned } if (mdev->agreed_pro_version < 94) - max_seg_s = be32_to_cpu(p->max_segment_size); + max_bio_size = be32_to_cpu(p->max_bio_size); else if (mdev->agreed_pro_version == 94) - max_seg_s = DRBD_MAX_SIZE_H80_PACKET; + max_bio_size = DRBD_MAX_SIZE_H80_PACKET; else /* drbd 8.3.8 onwards */ - max_seg_s = DRBD_MAX_SEGMENT_SIZE; + max_bio_size = DRBD_MAX_BIO_SIZE; - if (max_seg_s != queue_max_segment_size(mdev->rq_queue)) - drbd_setup_queue_param(mdev, max_seg_s); + if (max_bio_size != queue_max_hw_sectors(mdev->rq_queue) << 9) + drbd_setup_queue_param(mdev, max_bio_size); drbd_setup_order_type(mdev, be16_to_cpu(p->queue_order_type)); put_ldev(mdev); diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index ad3fc6228f27..08f53ce9b88f 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1047,7 +1047,7 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio) /* can this bio be split generically? * Maybe add our own split-arbitrary-bios function. */ - if (bio->bi_vcnt != 1 || bio->bi_idx != 0 || bio->bi_size > DRBD_MAX_SEGMENT_SIZE) { + if (bio->bi_vcnt != 1 || bio->bi_idx != 0 || bio->bi_size > DRBD_MAX_BIO_SIZE) { /* rather error out here than BUG in bio_split */ dev_err(DEV, "bio would need to, but cannot, be split: " "(vcnt=%u,idx=%u,size=%u,sector=%llu)\n", @@ -1098,7 +1098,7 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio) } /* This is called by bio_add_page(). With this function we reduce - * the number of BIOs that span over multiple DRBD_MAX_SEGMENT_SIZEs + * the number of BIOs that span over multiple DRBD_MAX_BIO_SIZEs * units (was AL_EXTENTs). * * we do the calculation within the lower 32bit of the byte offsets, @@ -1118,8 +1118,8 @@ int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct unsigned int bio_size = bvm->bi_size; int limit, backing_limit; - limit = DRBD_MAX_SEGMENT_SIZE - - ((bio_offset & (DRBD_MAX_SEGMENT_SIZE-1)) + bio_size); + limit = DRBD_MAX_BIO_SIZE + - ((bio_offset & (DRBD_MAX_BIO_SIZE-1)) + bio_size); if (limit < 0) limit = 0; if (bio_size == 0) { diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index af805efc94d7..782d87237cb4 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -524,7 +524,7 @@ int w_make_resync_request(struct drbd_conf *mdev, unsigned long bit; sector_t sector; const sector_t capacity = drbd_get_capacity(mdev->this_bdev); - int max_segment_size; + int max_bio_size; int number, rollback_i, size; int align, queued, sndbuf; int i = 0; @@ -559,9 +559,9 @@ int w_make_resync_request(struct drbd_conf *mdev, /* starting with drbd 8.3.8, we can handle multi-bio EEs, * if it should be necessary */ - max_segment_size = - mdev->agreed_pro_version < 94 ? queue_max_segment_size(mdev->rq_queue) : - mdev->agreed_pro_version < 95 ? DRBD_MAX_SIZE_H80_PACKET : DRBD_MAX_SEGMENT_SIZE; + max_bio_size = + mdev->agreed_pro_version < 94 ? queue_max_hw_sectors(mdev->rq_queue) << 9 : + mdev->agreed_pro_version < 95 ? DRBD_MAX_SIZE_H80_PACKET : DRBD_MAX_BIO_SIZE; number = drbd_rs_number_requests(mdev); if (number == 0) @@ -605,7 +605,7 @@ next_sector: goto next_sector; } -#if DRBD_MAX_SEGMENT_SIZE > BM_BLOCK_SIZE +#if DRBD_MAX_BIO_SIZE > BM_BLOCK_SIZE /* try to find some adjacent bits. * we stop if we have already the maximum req size. * @@ -615,7 +615,7 @@ next_sector: align = 1; rollback_i = i; for (;;) { - if (size + BM_BLOCK_SIZE > max_segment_size) + if (size + BM_BLOCK_SIZE > max_bio_size) break; /* Be always aligned */ -- cgit v1.2.3 From 4896e8c1b8fb7e46a65a6676e271fc047a260a3e Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 11 Nov 2010 22:41:04 +0100 Subject: drbd: restore compatibility with 32bit kernels With commit drbd: further converge progress display of resync and online-verify accidentally an u64/u64 div was introduced, causing an unresolvable symbol __udivdi3 to be reference. Actually for that division, 32bit are still suficient for now, so we can revert to unsigned long instead. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_proc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 329b66a91e44..49d817cfe865 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -164,8 +164,8 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) if (proc_details >= 1) { /* 64 bit: * we convert to sectors in the display below. */ - u64 bm_bits = drbd_bm_bits(mdev); - u64 bit_pos; + unsigned long bm_bits = drbd_bm_bits(mdev); + unsigned long bit_pos; if (mdev->state.conn == C_VERIFY_S || mdev->state.conn == C_VERIFY_T) bit_pos = bm_bits - mdev->ov_left; @@ -176,8 +176,8 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) seq_printf(seq, "\t%3d%% sector pos: %llu/%llu\n", (int)(bit_pos / (bm_bits/100+1)), - (unsigned long long) BM_BIT_TO_SECT(bit_pos), - (unsigned long long) BM_BIT_TO_SECT(bm_bits)); + (unsigned long long)bit_pos * BM_SECT_PER_BIT, + (unsigned long long)bm_bits * BM_SECT_PER_BIT); } } -- cgit v1.2.3 From 688593c5a82068aea64df0b836793dfbbaa646d7 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 17 Nov 2010 22:25:03 +0100 Subject: drbd: Renamed write_flags_to_bio() to wire_flags_to_bio() Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 79e7b57006b1..f3052d871d31 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1612,15 +1612,15 @@ static int drbd_wait_peer_seq(struct drbd_conf *mdev, const u32 packet_seq) return ret; } -static unsigned long write_flags_to_bio(struct drbd_conf *mdev, u32 dpf) +/* see also bio_flags_to_wire() + * DRBD_REQ_*, because we need to semantically map the flags to data packet + * flags and back. We may replicate to other kernel versions. */ +static unsigned long wire_flags_to_bio(struct drbd_conf *mdev, u32 dpf) { - if (mdev->agreed_pro_version >= 95) - return (dpf & DP_RW_SYNC ? REQ_SYNC : 0) | - (dpf & DP_FUA ? REQ_FUA : 0) | - (dpf & DP_FLUSH ? REQ_FUA : 0) | - (dpf & DP_DISCARD ? REQ_DISCARD : 0); - else - return dpf & DP_RW_SYNC ? REQ_SYNC : 0; + return (dpf & DP_RW_SYNC ? REQ_SYNC : 0) | + (dpf & DP_FUA ? REQ_FUA : 0) | + (dpf & DP_FLUSH ? REQ_FLUSH : 0) | + (dpf & DP_DISCARD ? REQ_DISCARD : 0); } /* mirrored write */ @@ -1660,18 +1660,18 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned e->w.cb = e_end_block; + dp_flags = be32_to_cpu(p->dp_flags); + rw |= wire_flags_to_bio(mdev, dp_flags); + + if (dp_flags & DP_MAY_SET_IN_SYNC) + e->flags |= EE_MAY_SET_IN_SYNC; + spin_lock(&mdev->epoch_lock); e->epoch = mdev->current_epoch; atomic_inc(&e->epoch->epoch_size); atomic_inc(&e->epoch->active); spin_unlock(&mdev->epoch_lock); - dp_flags = be32_to_cpu(p->dp_flags); - rw |= write_flags_to_bio(mdev, dp_flags); - - if (dp_flags & DP_MAY_SET_IN_SYNC) - e->flags |= EE_MAY_SET_IN_SYNC; - /* I'm the receiver, I do hold a net_cnt reference. */ if (!mdev->net_conf->two_primaries) { spin_lock_irq(&mdev->req_lock); -- cgit v1.2.3 From 759fbdfba66e620aceb3e73167e6003d1b8b0b0b Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Tue, 26 Oct 2010 16:02:27 +0200 Subject: drbd: Track the numbers of sectors in flight Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 1 + drivers/block/drbd/drbd_main.c | 1 + drivers/block/drbd/drbd_req.c | 13 ++++++++++++- drivers/block/drbd/drbd_req.h | 12 +++++++----- 4 files changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index bcba2742cfba..c804e44b9455 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1102,6 +1102,7 @@ struct drbd_conf { struct fifo_buffer rs_plan_s; /* correction values of resync planer */ int rs_in_flight; /* resync sectors in flight (to proxy, in proxy and from proxy) */ int rs_planed; /* resync sectors already planed */ + atomic_t ap_in_flight; /* App sectors in flight (waiting for ack) */ }; static inline struct drbd_conf *minor_to_mdev(unsigned int minor) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 9d9c2ed31e9a..e81d009dd061 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2799,6 +2799,7 @@ void drbd_init_set_defaults(struct drbd_conf *mdev) atomic_set(&mdev->pp_in_use_by_net, 0); atomic_set(&mdev->rs_sect_in, 0); atomic_set(&mdev->rs_sect_ev, 0); + atomic_set(&mdev->ap_in_flight, 0); mutex_init(&mdev->md_io_mutex); mutex_init(&mdev->data.mutex); diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 08f53ce9b88f..5c60d77d447c 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -558,6 +558,9 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, case handed_over_to_network: /* assert something? */ + if (bio_data_dir(req->master_bio) == WRITE) + atomic_add(req->size>>9, &mdev->ap_in_flight); + if (bio_data_dir(req->master_bio) == WRITE && mdev->net_conf->wire_protocol == DRBD_PROT_A) { /* this is what is dangerous about protocol A: @@ -591,6 +594,9 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, dec_ap_pending(mdev); req->rq_state &= ~(RQ_NET_OK|RQ_NET_PENDING); req->rq_state |= RQ_NET_DONE; + if (req->rq_state & RQ_NET_SENT && req->rq_state & RQ_WRITE) + atomic_sub(req->size>>9, &mdev->ap_in_flight); + /* if it is still queued, we may not complete it here. * it will be canceled soon. */ if (!(req->rq_state & RQ_NET_QUEUED)) @@ -628,14 +634,17 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, req->rq_state |= RQ_NET_OK; D_ASSERT(req->rq_state & RQ_NET_PENDING); dec_ap_pending(mdev); + atomic_sub(req->size>>9, &mdev->ap_in_flight); req->rq_state &= ~RQ_NET_PENDING; _req_may_be_done_not_susp(req, m); break; case neg_acked: /* assert something? */ - if (req->rq_state & RQ_NET_PENDING) + if (req->rq_state & RQ_NET_PENDING) { dec_ap_pending(mdev); + atomic_sub(req->size>>9, &mdev->ap_in_flight); + } req->rq_state &= ~(RQ_NET_OK|RQ_NET_PENDING); req->rq_state |= RQ_NET_DONE; @@ -692,6 +701,8 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, } D_ASSERT(req->rq_state & RQ_NET_SENT); req->rq_state |= RQ_NET_DONE; + if (mdev->net_conf->wire_protocol == DRBD_PROT_A) + atomic_sub(req->size>>9, &mdev->ap_in_flight); _req_may_be_done(req, m); /* Allowed while state.susp */ break; diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index ab2bd09d54b4..69d350fe7c1e 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -338,19 +338,21 @@ static inline int _req_mod(struct drbd_request *req, enum drbd_req_event what) return rv; } -/* completion of master bio is outside of spinlock. - * If you need it irqsave, do it your self! - * Which means: don't use from bio endio callback. */ +/* completion of master bio is outside of our spinlock. + * We still may or may not be inside some irqs disabled section + * of the lower level driver completion callback, so we need to + * spin_lock_irqsave here. */ static inline int req_mod(struct drbd_request *req, enum drbd_req_event what) { + unsigned long flags; struct drbd_conf *mdev = req->mdev; struct bio_and_error m; int rv; - spin_lock_irq(&mdev->req_lock); + spin_lock_irqsave(&mdev->req_lock, flags); rv = __req_mod(req, what, &m); - spin_unlock_irq(&mdev->req_lock); + spin_unlock_irqrestore(&mdev->req_lock, flags); if (m.bio) complete_master_bio(mdev, &m); -- cgit v1.2.3 From 422028b1ca4c07995af82a18abced022ff4c296c Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Wed, 27 Oct 2010 11:12:07 +0200 Subject: drbd: New configuration parameters for dealing with network congestion net { on_congestion {block|pull-ahead|disconnect}; congestion-fill {sectors}; congestion-extents {al-extents}; } Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 7 +++++++ include/linux/drbd.h | 7 +++++++ include/linux/drbd_limits.h | 9 +++++++++ include/linux/drbd_nl.h | 3 +++ 4 files changed, 26 insertions(+) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 9e27d82a9a19..f969d8717e23 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1323,6 +1323,8 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, new_conf->wire_protocol = DRBD_PROT_C; new_conf->ping_timeo = DRBD_PING_TIMEO_DEF; new_conf->rr_conflict = DRBD_RR_CONFLICT_DEF; + new_conf->on_congestion = DRBD_ON_CONGESTION_DEF; + new_conf->cong_extents = DRBD_CONG_EXTENTS_DEF; if (!net_conf_from_tags(mdev, nlp->tag_list, new_conf)) { retcode = ERR_MANDATORY_TAG; @@ -1344,6 +1346,11 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, } } + if (new_conf->on_congestion != OC_BLOCK && new_conf->wire_protocol != DRBD_PROT_A) { + retcode = ERR_CONG_NOT_PROTO_A; + goto fail; + } + if (mdev->state.role == R_PRIMARY && new_conf->want_lose) { retcode = ERR_DISCARD; goto fail; diff --git a/include/linux/drbd.h b/include/linux/drbd.h index ef44c7a0638c..03a08baabf11 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -96,6 +96,12 @@ enum drbd_on_no_data { OND_SUSPEND_IO }; +enum drbd_on_congestion { + OC_BLOCK, + OC_PULL_AHEAD, + OC_DISCONNECT, +}; + /* KEEP the order, do not delete or insert. Only append. */ enum drbd_ret_codes { ERR_CODE_BASE = 100, @@ -146,6 +152,7 @@ enum drbd_ret_codes { ERR_PERM = 152, ERR_NEED_APV_93 = 153, ERR_STONITH_AND_PROT_A = 154, + ERR_CONG_NOT_PROTO_A = 155, /* insert new ones above this line */ AFTER_LAST_ERR_CODE diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h index 4ac33f34b77e..abf418724e52 100644 --- a/include/linux/drbd_limits.h +++ b/include/linux/drbd_limits.h @@ -129,6 +129,7 @@ #define DRBD_AFTER_SB_2P_DEF ASB_DISCONNECT #define DRBD_RR_CONFLICT_DEF ASB_DISCONNECT #define DRBD_ON_NO_DATA_DEF OND_IO_ERROR +#define DRBD_ON_CONGESTION_DEF OC_BLOCK #define DRBD_MAX_BIO_BVECS_MIN 0 #define DRBD_MAX_BIO_BVECS_MAX 128 @@ -154,5 +155,13 @@ #define DRBD_C_MIN_RATE_MAX (4 << 20) #define DRBD_C_MIN_RATE_DEF 4096 +#define DRBD_CONG_FILL_MIN 0 +#define DRBD_CONG_FILL_MAX (10<<21) /* 10GByte in sectors */ +#define DRBD_CONG_FILL_DEF 0 + +#define DRBD_CONG_EXTENTS_MIN DRBD_AL_EXTENTS_MIN +#define DRBD_CONG_EXTENTS_MAX DRBD_AL_EXTENTS_MAX +#define DRBD_CONG_EXTENTS_DEF DRBD_AL_EXTENTS_DEF + #undef RANGE #endif diff --git a/include/linux/drbd_nl.h b/include/linux/drbd_nl.h index ade91107c9a5..8cde3945d1f7 100644 --- a/include/linux/drbd_nl.h +++ b/include/linux/drbd_nl.h @@ -56,6 +56,9 @@ NL_PACKET(net_conf, 5, NL_INTEGER( 39, T_MAY_IGNORE, rr_conflict) NL_INTEGER( 40, T_MAY_IGNORE, ping_timeo) NL_INTEGER( 67, T_MAY_IGNORE, rcvbuf_size) + NL_INTEGER( 81, T_MAY_IGNORE, on_congestion) + NL_INTEGER( 82, T_MAY_IGNORE, cong_fill) + NL_INTEGER( 83, T_MAY_IGNORE, cong_extents) /* 59 addr_family was available in GIT, never released */ NL_BIT( 60, T_MANDATORY, mind_af) NL_BIT( 27, T_MAY_IGNORE, want_lose) -- cgit v1.2.3 From 67531718d8f1259f01ab84c2aa25f7b03c7afd46 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Wed, 27 Oct 2010 12:21:30 +0200 Subject: drbd: Implemented two new connection states Ahead/Behind In this connection mode, the ahead node no longer replicates application IO. The behind's disk becomes out dated. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 2 ++ drivers/block/drbd/drbd_main.c | 12 ++++++++++-- drivers/block/drbd/drbd_receiver.c | 3 +++ drivers/block/drbd/drbd_req.c | 23 +++++++++++++++++++++++ drivers/block/drbd/drbd_strings.c | 4 +++- include/linux/drbd.h | 4 ++++ 6 files changed, 45 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index c804e44b9455..21b7439438cd 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -2217,6 +2217,8 @@ static inline int drbd_state_is_stable(union drbd_state s) case C_VERIFY_T: case C_PAUSED_SYNC_S: case C_PAUSED_SYNC_T: + case C_AHEAD: + case C_BEHIND: /* maybe stable, look at the disk state */ break; diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index e81d009dd061..46f27d6c0b21 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -871,16 +871,19 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state if (ns.conn >= C_CONNECTED && ((ns.disk == D_CONSISTENT || ns.disk == D_OUTDATED) || - (ns.disk == D_NEGOTIATING && ns.conn == C_WF_BITMAP_T))) { + (ns.disk == D_NEGOTIATING && ns.conn == C_WF_BITMAP_T) || + ns.conn >= C_AHEAD)) { switch (ns.conn) { case C_WF_BITMAP_T: case C_PAUSED_SYNC_T: + case C_BEHIND: ns.disk = D_OUTDATED; break; case C_CONNECTED: case C_WF_BITMAP_S: case C_SYNC_SOURCE: case C_PAUSED_SYNC_S: + case C_AHEAD: ns.disk = D_UP_TO_DATE; break; case C_SYNC_TARGET: @@ -893,16 +896,18 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state } if (ns.conn >= C_CONNECTED && - (ns.pdsk == D_CONSISTENT || ns.pdsk == D_OUTDATED)) { + (ns.pdsk == D_CONSISTENT || ns.pdsk == D_OUTDATED || ns.conn >= C_AHEAD)) { switch (ns.conn) { case C_CONNECTED: case C_WF_BITMAP_T: case C_PAUSED_SYNC_T: case C_SYNC_TARGET: + case C_BEHIND: ns.pdsk = D_UP_TO_DATE; break; case C_WF_BITMAP_S: case C_PAUSED_SYNC_S: + case C_AHEAD: /* remap any consistent state to D_OUTDATED, * but disallow "upgrade" of not even consistent states. */ @@ -1374,6 +1379,9 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, if (os.conn == C_WF_REPORT_PARAMS && ns.conn >= C_CONNECTED) drbd_send_state(mdev); + if (os.conn != C_AHEAD && ns.conn == C_AHEAD) + drbd_send_state(mdev); + /* We are in the progress to start a full sync... */ if ((os.conn != C_STARTING_SYNC_T && ns.conn == C_STARTING_SYNC_T) || (os.conn != C_STARTING_SYNC_S && ns.conn == C_STARTING_SYNC_S)) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index f3052d871d31..b19e8b2c4ce5 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3179,6 +3179,9 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned if (ns.conn == C_WF_REPORT_PARAMS) ns.conn = C_CONNECTED; + if (peer_state.conn == C_AHEAD) + ns.conn = C_BEHIND; + if (mdev->p_uuid && peer_state.disk >= D_NEGOTIATING && get_ldev_if_state(mdev, D_NEGOTIATING)) { int cr; /* consider resync */ diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 5c60d77d447c..60288fb3c4d7 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -948,6 +948,29 @@ allocate_barrier: ? queue_for_net_write : queue_for_net_read); } + + if (remote && mdev->net_conf->on_congestion != OC_BLOCK) { + int congested = 0; + + if (mdev->net_conf->cong_fill && + atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) { + dev_info(DEV, "Congestion-fill threshold reached\n"); + congested = 1; + } + + if (mdev->act_log->used >= mdev->net_conf->cong_extents) { + dev_info(DEV, "Congestion-extents threshold reached\n"); + congested = 1; + } + + if (congested) { + if (mdev->net_conf->on_congestion == OC_PULL_AHEAD) + _drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL); + else /*mdev->net_conf->on_congestion == OC_DISCONNECT */ + _drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL); + } + } + spin_unlock_irq(&mdev->req_lock); kfree(b); /* if someone else has beaten us to it... */ diff --git a/drivers/block/drbd/drbd_strings.c b/drivers/block/drbd/drbd_strings.c index 85179e1fb50a..5b970adc3b6f 100644 --- a/drivers/block/drbd/drbd_strings.c +++ b/drivers/block/drbd/drbd_strings.c @@ -48,6 +48,8 @@ static const char *drbd_conn_s_names[] = { [C_PAUSED_SYNC_T] = "PausedSyncT", [C_VERIFY_S] = "VerifyS", [C_VERIFY_T] = "VerifyT", + [C_AHEAD] = "Ahead", + [C_BEHIND] = "Behind", }; static const char *drbd_role_s_names[] = { @@ -92,7 +94,7 @@ static const char *drbd_state_sw_errors[] = { const char *drbd_conn_str(enum drbd_conns s) { /* enums are unsigned... */ - return s > C_PAUSED_SYNC_T ? "TOO_LARGE" : drbd_conn_s_names[s]; + return s > C_BEHIND ? "TOO_LARGE" : drbd_conn_s_names[s]; } const char *drbd_role_str(enum drbd_role s) diff --git a/include/linux/drbd.h b/include/linux/drbd.h index 03a08baabf11..23f31be6f00d 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -206,6 +206,10 @@ enum drbd_conns { C_VERIFY_T, C_PAUSED_SYNC_S, C_PAUSED_SYNC_T, + + C_AHEAD, + C_BEHIND, + C_MASK = 31 }; -- cgit v1.2.3 From 73a01a18b9c28a0fab1131ece5b0a9bc00a879b8 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Wed, 27 Oct 2010 14:33:00 +0200 Subject: drbd: New packet for Ahead/Behind mode: P_OUT_OF_SYNC Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 10 +++++---- drivers/block/drbd/drbd_int.h | 14 +++++++++++- drivers/block/drbd/drbd_main.c | 10 +++++++++ drivers/block/drbd/drbd_receiver.c | 10 +++++++++ drivers/block/drbd/drbd_req.c | 44 +++++++++++++++++++++++++++----------- drivers/block/drbd/drbd_req.h | 4 +++- drivers/block/drbd/drbd_worker.c | 16 ++++++++++++++ include/linux/drbd.h | 2 +- 8 files changed, 91 insertions(+), 19 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index b4adb58c7472..33f6cc537d08 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -1007,22 +1007,22 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size, * called by tl_clear and drbd_send_dblock (==drbd_make_request). * so this can be _any_ process. */ -void __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size, +int __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size, const char *file, const unsigned int line) { unsigned long sbnr, ebnr, lbnr, flags; sector_t esector, nr_sectors; - unsigned int enr, count; + unsigned int enr, count = 0; struct lc_element *e; if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) { dev_err(DEV, "sector: %llus, size: %d\n", (unsigned long long)sector, size); - return; + return 0; } if (!get_ldev(mdev)) - return; /* no disk, no metadata, no bitmap to set bits in */ + return 0; /* no disk, no metadata, no bitmap to set bits in */ nr_sectors = drbd_get_capacity(mdev->this_bdev); esector = sector + (size >> 9) - 1; @@ -1052,6 +1052,8 @@ void __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size, out: put_ldev(mdev); + + return count; } static diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 21b7439438cd..471331236826 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -212,6 +212,7 @@ enum drbd_packets { /* P_CKPT_FENCE_REQ = 0x25, * currently reserved for protocol D */ /* P_CKPT_DISABLE_REQ = 0x26, * currently reserved for protocol D */ P_DELAY_PROBE = 0x27, /* is used on BOTH sockets */ + P_OUT_OF_SYNC = 0x28, /* Mark as out of sync (Outrunning), data socket */ P_MAX_CMD = 0x28, P_MAY_IGNORE = 0x100, /* Flag to test if (cmd > P_MAY_IGNORE) ... */ @@ -269,6 +270,7 @@ static inline const char *cmdname(enum drbd_packets cmd) [P_RS_IS_IN_SYNC] = "CsumRSIsInSync", [P_COMPRESSED_BITMAP] = "CBitmap", [P_DELAY_PROBE] = "DelayProbe", + [P_OUT_OF_SYNC] = "OutOfSync", [P_MAX_CMD] = NULL, }; @@ -550,6 +552,13 @@ struct p_discard { u32 pad; } __packed; +struct p_block_desc { + struct p_header80 head; + u64 sector; + u32 blksize; + u32 pad; /* to multiple of 8 Byte */ +} __packed; + /* Valid values for the encoding field. * Bump proto version when changing this. */ enum drbd_bitmap_code { @@ -647,6 +656,7 @@ union p_polymorph { struct p_block_req block_req; struct p_delay_probe93 delay_probe93; struct p_rs_uuid rs_uuid; + struct p_block_desc block_desc; } __packed; /**********************************************************************/ @@ -1221,6 +1231,7 @@ extern int drbd_send_ack_dp(struct drbd_conf *mdev, enum drbd_packets cmd, struct p_data *dp, int data_size); extern int drbd_send_ack_ex(struct drbd_conf *mdev, enum drbd_packets cmd, sector_t sector, int blksize, u64 block_id); +extern int drbd_send_oos(struct drbd_conf *mdev, struct drbd_request *req); extern int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd, struct drbd_epoch_entry *e); extern int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req); @@ -1534,6 +1545,7 @@ extern int w_send_read_req(struct drbd_conf *, struct drbd_work *, int); extern int w_prev_work_done(struct drbd_conf *, struct drbd_work *, int); extern int w_e_reissue(struct drbd_conf *, struct drbd_work *, int); extern int w_restart_disk_io(struct drbd_conf *, struct drbd_work *, int); +extern int w_send_oos(struct drbd_conf *, struct drbd_work *, int); extern void resync_timer_fn(unsigned long data); @@ -1626,7 +1638,7 @@ extern void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size, const char *file, const unsigned int line); #define drbd_set_in_sync(mdev, sector, size) \ __drbd_set_in_sync(mdev, sector, size, __FILE__, __LINE__) -extern void __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, +extern int __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size, const char *file, const unsigned int line); #define drbd_set_out_of_sync(mdev, sector, size) \ __drbd_set_out_of_sync(mdev, sector, size, __FILE__, __LINE__) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 46f27d6c0b21..0dc93f43a476 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2634,6 +2634,16 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd, return ok; } +int drbd_send_oos(struct drbd_conf *mdev, struct drbd_request *req) +{ + struct p_block_desc p; + + p.sector = cpu_to_be64(req->sector); + p.blksize = cpu_to_be32(req->size); + + return drbd_send_cmd(mdev, USE_DATA_SOCKET, P_OUT_OF_SYNC, &p.head, sizeof(p)); +} + /* drbd_send distinguishes two cases: diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index b19e8b2c4ce5..04a08e7541cc 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3562,6 +3562,15 @@ static int receive_UnplugRemote(struct drbd_conf *mdev, enum drbd_packets cmd, u return TRUE; } +static int receive_out_of_sync(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size) +{ + struct p_block_desc *p = &mdev->data.rbuf.block_desc; + + drbd_set_out_of_sync(mdev, be64_to_cpu(p->sector), be32_to_cpu(p->blksize)); + + return TRUE; +} + typedef int (*drbd_cmd_handler_f)(struct drbd_conf *, enum drbd_packets cmd, unsigned int to_receive); struct data_cmd { @@ -3592,6 +3601,7 @@ static struct data_cmd drbd_cmd_handler[] = { [P_OV_REPLY] = { 1, sizeof(struct p_block_req), receive_DataRequest }, [P_CSUM_RS_REQUEST] = { 1, sizeof(struct p_block_req), receive_DataRequest }, [P_DELAY_PROBE] = { 0, sizeof(struct p_delay_probe93), receive_skip }, + [P_OUT_OF_SYNC] = { 0, sizeof(struct p_block_desc), receive_out_of_sync }, /* anything missing from this table is in * the asender_tbl, see get_asender_cmd */ [P_MAX_CMD] = { 0, 0, NULL }, diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 60288fb3c4d7..a8d1ff2bda27 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -142,7 +142,7 @@ static void _about_to_complete_local_write(struct drbd_conf *mdev, /* before we can signal completion to the upper layers, * we may need to close the current epoch */ - if (mdev->state.conn >= C_CONNECTED && + if (mdev->state.conn >= C_CONNECTED && mdev->state.conn < C_AHEAD && req->epoch == mdev->newest_tle->br_number) queue_barrier(mdev); @@ -545,6 +545,14 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, break; + case queue_for_send_oos: + req->rq_state |= RQ_NET_QUEUED; + req->w.cb = w_send_oos; + drbd_queue_work(&mdev->data.work, &req->w); + break; + + case oos_handed_to_network: + /* actually the same */ case send_canceled: /* treat it the same */ case send_failed: @@ -756,7 +764,7 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio) const sector_t sector = bio->bi_sector; struct drbd_tl_epoch *b = NULL; struct drbd_request *req; - int local, remote; + int local, remote, send_oos = 0; int err = -EIO; int ret = 0; @@ -820,8 +828,11 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio) } remote = remote && (mdev->state.pdsk == D_UP_TO_DATE || - (mdev->state.pdsk == D_INCONSISTENT && - mdev->state.conn >= C_CONNECTED)); + (mdev->state.pdsk >= D_INCONSISTENT && + mdev->state.conn >= C_CONNECTED && + mdev->state.conn < C_AHEAD)); + send_oos = (rw == WRITE && mdev->state.conn == C_AHEAD && + mdev->state.pdsk >= D_INCONSISTENT); if (!(local || remote) && !is_susp(mdev->state)) { if (__ratelimit(&drbd_ratelimit_state)) @@ -835,7 +846,7 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio) * but there is a race between testing the bit and pointer outside the * spinlock, and grabbing the spinlock. * if we lost that race, we retry. */ - if (rw == WRITE && remote && + if (rw == WRITE && (remote || send_oos) && mdev->unused_spare_tle == NULL && test_bit(CREATE_BARRIER, &mdev->flags)) { allocate_barrier: @@ -860,11 +871,15 @@ allocate_barrier: goto fail_free_complete; } - if (remote) { + if (remote || send_oos) { remote = (mdev->state.pdsk == D_UP_TO_DATE || - (mdev->state.pdsk == D_INCONSISTENT && - mdev->state.conn >= C_CONNECTED)); - if (!remote) + (mdev->state.pdsk >= D_INCONSISTENT && + mdev->state.conn >= C_CONNECTED && + mdev->state.conn < C_AHEAD)); + send_oos = (rw == WRITE && mdev->state.conn == C_AHEAD && + mdev->state.pdsk >= D_INCONSISTENT); + + if (!(remote || send_oos)) dev_warn(DEV, "lost connection while grabbing the req_lock!\n"); if (!(local || remote)) { dev_err(DEV, "IO ERROR: neither local nor remote disk\n"); @@ -877,7 +892,7 @@ allocate_barrier: mdev->unused_spare_tle = b; b = NULL; } - if (rw == WRITE && remote && + if (rw == WRITE && (remote || send_oos) && mdev->unused_spare_tle == NULL && test_bit(CREATE_BARRIER, &mdev->flags)) { /* someone closed the current epoch @@ -900,7 +915,7 @@ allocate_barrier: * barrier packet. To get the write ordering right, we only have to * make sure that, if this is a write request and it triggered a * barrier packet, this request is queued within the same spinlock. */ - if (remote && mdev->unused_spare_tle && + if ((remote || send_oos) && mdev->unused_spare_tle && test_and_clear_bit(CREATE_BARRIER, &mdev->flags)) { _tl_add_barrier(mdev, mdev->unused_spare_tle); mdev->unused_spare_tle = NULL; @@ -948,8 +963,11 @@ allocate_barrier: ? queue_for_net_write : queue_for_net_read); } + if (send_oos && drbd_set_out_of_sync(mdev, sector, size)) + _req_mod(req, queue_for_send_oos); - if (remote && mdev->net_conf->on_congestion != OC_BLOCK) { + if (remote && + mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) { int congested = 0; if (mdev->net_conf->cong_fill && @@ -964,6 +982,8 @@ allocate_barrier: } if (congested) { + queue_barrier(mdev); + if (mdev->net_conf->on_congestion == OC_PULL_AHEAD) _drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL); else /*mdev->net_conf->on_congestion == OC_DISCONNECT */ diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index 69d350fe7c1e..40d3dcd8fc81 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -82,14 +82,16 @@ enum drbd_req_event { to_be_submitted, /* XXX yes, now I am inconsistent... - * these two are not "events" but "actions" + * these are not "events" but "actions" * oh, well... */ queue_for_net_write, queue_for_net_read, + queue_for_send_oos, send_canceled, send_failed, handed_over_to_network, + oos_handed_to_network, connection_lost_while_pending, read_retry_remote_canceled, recv_acked_by_peer, diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 782d87237cb4..67499077c482 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1237,6 +1237,22 @@ int w_send_write_hint(struct drbd_conf *mdev, struct drbd_work *w, int cancel) return drbd_send_short_cmd(mdev, P_UNPLUG_REMOTE); } +int w_send_oos(struct drbd_conf *mdev, struct drbd_work *w, int cancel) +{ + struct drbd_request *req = container_of(w, struct drbd_request, w); + int ok; + + if (unlikely(cancel)) { + req_mod(req, send_canceled); + return 1; + } + + ok = drbd_send_oos(mdev, req); + req_mod(req, oos_handed_to_network); + + return ok; +} + /** * w_send_dblock() - Worker callback to send a P_DATA packet in order to mirror a write request * @mdev: DRBD device. diff --git a/include/linux/drbd.h b/include/linux/drbd.h index 23f31be6f00d..41da654cc0b1 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -56,7 +56,7 @@ extern const char *drbd_buildtag(void); #define REL_VERSION "8.3.9" #define API_VERSION 88 #define PRO_VERSION_MIN 86 -#define PRO_VERSION_MAX 95 +#define PRO_VERSION_MAX 96 enum drbd_io_error_p { -- cgit v1.2.3 From c4752ef1284519c3baa1c3b19df34a80b4905245 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Wed, 27 Oct 2010 17:32:36 +0200 Subject: drbd: When proxy's buffer drained off go into regular resync mode Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 4 +++- drivers/block/drbd/drbd_main.c | 1 + drivers/block/drbd/drbd_receiver.c | 9 +++++++++ drivers/block/drbd/drbd_worker.c | 10 +++++++++- 4 files changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 471331236826..da02cce374c9 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -973,7 +973,8 @@ struct drbd_conf { struct drbd_work resync_work, unplug_work, go_diskless, - md_sync_work; + md_sync_work, + start_resync_work; struct timer_list resync_timer; struct timer_list md_sync_timer; #ifdef DRBD_DEBUG_MD_SYNC @@ -1546,6 +1547,7 @@ extern int w_prev_work_done(struct drbd_conf *, struct drbd_work *, int); extern int w_e_reissue(struct drbd_conf *, struct drbd_work *, int); extern int w_restart_disk_io(struct drbd_conf *, struct drbd_work *, int); extern int w_send_oos(struct drbd_conf *, struct drbd_work *, int); +extern int w_start_resync(struct drbd_conf *, struct drbd_work *, int); extern void resync_timer_fn(unsigned long data); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 0dc93f43a476..f49505cf8d0f 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2846,6 +2846,7 @@ void drbd_init_set_defaults(struct drbd_conf *mdev) INIT_LIST_HEAD(&mdev->unplug_work.list); INIT_LIST_HEAD(&mdev->go_diskless.list); INIT_LIST_HEAD(&mdev->md_sync_work.list); + INIT_LIST_HEAD(&mdev->start_resync_work.list); INIT_LIST_HEAD(&mdev->bm_io_work.w.list); mdev->resync_work.cb = w_resync_inactive; diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 04a08e7541cc..ee9238e59327 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3279,6 +3279,7 @@ static int receive_sync_uuid(struct drbd_conf *mdev, enum drbd_packets cmd, unsi wait_event(mdev->misc_wait, mdev->state.conn == C_WF_SYNC_UUID || + mdev->state.conn == C_BEHIND || mdev->state.conn < C_CONNECTED || mdev->state.disk < D_NEGOTIATING); @@ -4338,6 +4339,14 @@ static int got_BarrierAck(struct drbd_conf *mdev, struct p_header80 *h) tl_release(mdev, p->barrier, be32_to_cpu(p->set_size)); + if (mdev->state.conn == C_AHEAD && + atomic_read(&mdev->ap_in_flight) == 0 && + list_empty(&mdev->start_resync_work.list)) { + struct drbd_work *w = &mdev->start_resync_work; + w->cb = w_start_resync; + drbd_queue_work_front(&mdev->data.work, w); + } + return TRUE; } diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 67499077c482..c9e7cb7c788a 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -742,6 +742,14 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca return 1; } + +int w_start_resync(struct drbd_conf *mdev, struct drbd_work *w, int cancel) +{ + drbd_start_resync(mdev, C_SYNC_SOURCE); + + return 1; +} + int w_ov_finished(struct drbd_conf *mdev, struct drbd_work *w, int cancel) { kfree(w); @@ -1472,7 +1480,7 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) union drbd_state ns; int r; - if (mdev->state.conn >= C_SYNC_SOURCE) { + if (mdev->state.conn >= C_SYNC_SOURCE && mdev->state.conn < C_AHEAD) { dev_err(DEV, "Resync already running!\n"); return; } -- cgit v1.2.3 From 59817f4fab6a165ba83ce399464ba38432db8233 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Fri, 29 Oct 2010 12:44:20 +0200 Subject: drbd: Do not cleanup resync LRU for the Ahead/Behind SyncSource/SyncTarget transitions This one should be replaced with moving this cleanup to the 'right' position. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_worker.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index c9e7cb7c788a..982d68432a0f 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1485,8 +1485,13 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) return; } - /* In case a previous resync run was aborted by an IO error/detach on the peer. */ - drbd_rs_cancel_all(mdev); + if (mdev->state.conn < C_AHEAD) { + /* In case a previous resync run was aborted by an IO error/detach on the peer. */ + drbd_rs_cancel_all(mdev); + /* This should be done when we abort the resync. We definitely do not + want to have this for connections going back and forth between + Ahead/Behind and SyncSource/SyncTarget */ + } if (side == C_SYNC_TARGET) { /* Since application IO was locked out during C_WF_BITMAP_T and -- cgit v1.2.3 From e3555d8545976703938d1b59e2db509426dbe02c Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Sun, 7 Nov 2010 15:56:29 +0100 Subject: drbd: Implemented priority inheritance for resync requests We only issue resync requests if there is no significant application IO going on. = Application IO has higher priority than resnyc IO. If application IO can not be started because the resync process locked an resync_lru entry, start the IO operations necessary to release the lock ASAP. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 4 ++-- drivers/block/drbd/drbd_int.h | 3 ++- drivers/block/drbd/drbd_receiver.c | 22 ++++++++++++++++++---- drivers/block/drbd/drbd_worker.c | 18 +++++------------- 4 files changed, 27 insertions(+), 20 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index 33f6cc537d08..28f85d950781 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -182,6 +182,7 @@ static struct lc_element *_al_get(struct drbd_conf *mdev, unsigned int enr) if (unlikely(tmp != NULL)) { struct bm_extent *bm_ext = lc_entry(tmp, struct bm_extent, lce); if (test_bit(BME_NO_WRITES, &bm_ext->flags)) { + set_bit(BME_PRIORITY, &bm_ext->flags); spin_unlock_irq(&mdev->al_lock); return NULL; } @@ -1297,8 +1298,7 @@ void drbd_rs_complete_io(struct drbd_conf *mdev, sector_t sector) } if (lc_put(mdev->resync, &bm_ext->lce) == 0) { - clear_bit(BME_LOCKED, &bm_ext->flags); - clear_bit(BME_NO_WRITES, &bm_ext->flags); + bm_ext->flags = 0; /* clear BME_LOCKED, BME_NO_WRITES and BME_PRIORITY */ mdev->resync_locked--; wake_up(&mdev->al_wait); } diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index da02cce374c9..366873d661b8 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1326,6 +1326,7 @@ struct bm_extent { #define BME_NO_WRITES 0 /* bm_extent.flags: no more requests on this one! */ #define BME_LOCKED 1 /* bm_extent.flags: syncer active on this one. */ +#define BME_PRIORITY 2 /* finish resync IO on this extent ASAP! App IO waiting! */ /* drbd_bitmap.c */ /* @@ -1552,7 +1553,7 @@ extern int w_start_resync(struct drbd_conf *, struct drbd_work *, int); extern void resync_timer_fn(unsigned long data); /* drbd_receiver.c */ -extern int drbd_rs_should_slow_down(struct drbd_conf *mdev); +extern int drbd_rs_should_slow_down(struct drbd_conf *mdev, sector_t sector); extern int drbd_submit_ee(struct drbd_conf *mdev, struct drbd_epoch_entry *e, const unsigned rw, const int fault_type); extern int drbd_release_ee(struct drbd_conf *mdev, struct list_head *list); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index ee9238e59327..0630a2e122d3 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1862,10 +1862,11 @@ out_interrupted: * The current sync rate used here uses only the most recent two step marks, * to have a short time average so we can react faster. */ -int drbd_rs_should_slow_down(struct drbd_conf *mdev) +int drbd_rs_should_slow_down(struct drbd_conf *mdev, sector_t sector) { struct gendisk *disk = mdev->ldev->backing_bdev->bd_contains->bd_disk; unsigned long db, dt, dbdt; + struct lc_element *tmp; int curr_events; int throttle = 0; @@ -1873,9 +1874,22 @@ int drbd_rs_should_slow_down(struct drbd_conf *mdev) if (mdev->sync_conf.c_min_rate == 0) return 0; + spin_lock_irq(&mdev->al_lock); + tmp = lc_find(mdev->resync, BM_SECT_TO_EXT(sector)); + if (tmp) { + struct bm_extent *bm_ext = lc_entry(tmp, struct bm_extent, lce); + if (test_bit(BME_PRIORITY, &bm_ext->flags)) { + spin_unlock_irq(&mdev->al_lock); + return 0; + } + /* Do not slow down if app IO is already waiting for this extent */ + } + spin_unlock_irq(&mdev->al_lock); + curr_events = (int)part_stat_read(&disk->part0, sectors[0]) + (int)part_stat_read(&disk->part0, sectors[1]) - atomic_read(&mdev->rs_sect_ev); + if (!mdev->rs_last_events || curr_events - mdev->rs_last_events > 64) { unsigned long rs_left; int i; @@ -2060,9 +2074,9 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un * we would also throttle its application reads. * In that case, throttling is done on the SyncTarget only. */ - if (mdev->state.peer != R_PRIMARY && drbd_rs_should_slow_down(mdev)) - msleep(100); - if (drbd_rs_begin_io(mdev, e->sector)) + if (mdev->state.peer != R_PRIMARY && drbd_rs_should_slow_down(mdev, sector)) + schedule_timeout_uninterruptible(HZ/10); + if (drbd_rs_begin_io(mdev, sector)) goto out_free_e; submit_for_resync: diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 982d68432a0f..4008130f2b2c 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -355,7 +355,7 @@ static int read_for_csum(struct drbd_conf *mdev, sector_t sector, int size) if (!get_ldev(mdev)) return -EIO; - if (drbd_rs_should_slow_down(mdev)) + if (drbd_rs_should_slow_down(mdev, sector)) goto defer; /* GFP_TRY, because if there is no memory available right now, this may @@ -503,16 +503,6 @@ int drbd_rs_number_requests(struct drbd_conf *mdev) number = SLEEP_TIME * mdev->c_sync_rate / ((BM_BLOCK_SIZE / 1024) * HZ); } - /* Throttle resync on lower level disk activity, which may also be - * caused by application IO on Primary/SyncTarget. - * Keep this after the call to drbd_rs_controller, as that assumes - * to be called as precisely as possible every SLEEP_TIME, - * and would be confused otherwise. */ - if (number && drbd_rs_should_slow_down(mdev)) { - mdev->c_sync_rate = 1; - number = 0; - } - /* ignore the amount of pending requests, the resync controller should * throttle down to incoming reply rate soon enough anyways. */ return number; @@ -594,7 +584,8 @@ next_sector: sector = BM_BIT_TO_SECT(bit); - if (drbd_try_rs_begin_io(mdev, sector)) { + if (drbd_rs_should_slow_down(mdev, sector) || + drbd_try_rs_begin_io(mdev, sector)) { mdev->bm_resync_fo = bit; goto requeue; } @@ -719,7 +710,8 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca size = BM_BLOCK_SIZE; - if (drbd_try_rs_begin_io(mdev, sector)) { + if (drbd_rs_should_slow_down(mdev, sector) || + drbd_try_rs_begin_io(mdev, sector)) { mdev->ov_position = sector; goto requeue; } -- cgit v1.2.3 From 9d77a5fee9d2a1ea4cd9a841d27b107df5913b33 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Sun, 7 Nov 2010 18:02:56 +0100 Subject: drbd: Make some functions static Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 1 - drivers/block/drbd/drbd_worker.c | 10 ++++++---- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 366873d661b8..77ac6765fd57 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1540,7 +1540,6 @@ extern int w_ov_finished(struct drbd_conf *, struct drbd_work *, int); extern int w_resync_inactive(struct drbd_conf *, struct drbd_work *, int); extern int w_resume_next_sg(struct drbd_conf *, struct drbd_work *, int); extern int w_send_write_hint(struct drbd_conf *, struct drbd_work *, int); -extern int w_make_resync_request(struct drbd_conf *, struct drbd_work *, int); extern int w_send_dblock(struct drbd_conf *, struct drbd_work *, int); extern int w_send_barrier(struct drbd_conf *, struct drbd_work *, int); extern int w_send_read_req(struct drbd_conf *, struct drbd_work *, int); diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 4008130f2b2c..ab5cff502f5b 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -39,6 +39,8 @@ #include "drbd_req.h" static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int cancel); +static int w_make_resync_request(struct drbd_conf *mdev, + struct drbd_work *w, int cancel); @@ -438,7 +440,7 @@ static void fifo_add_val(struct fifo_buffer *fb, int value) fb->values[i] += value; } -int drbd_rs_controller(struct drbd_conf *mdev) +static int drbd_rs_controller(struct drbd_conf *mdev) { unsigned int sect_in; /* Number of sectors that came in since the last turn */ unsigned int want; /* The number of sectors we want in the proxy */ @@ -492,7 +494,7 @@ int drbd_rs_controller(struct drbd_conf *mdev) return req_sect; } -int drbd_rs_number_requests(struct drbd_conf *mdev) +static int drbd_rs_number_requests(struct drbd_conf *mdev) { int number; if (mdev->rs_plan_s.size) { /* mdev->sync_conf.c_plan_ahead */ @@ -508,8 +510,8 @@ int drbd_rs_number_requests(struct drbd_conf *mdev) return number; } -int w_make_resync_request(struct drbd_conf *mdev, - struct drbd_work *w, int cancel) +static int w_make_resync_request(struct drbd_conf *mdev, + struct drbd_work *w, int cancel) { unsigned long bit; sector_t sector; -- cgit v1.2.3 From f91ab6282df251d28aa4ad1bd85194ebe0a0115b Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Tue, 9 Nov 2010 13:59:41 +0100 Subject: drbd: Implemented side-stepping in drbd_res_begin_io() Before: drbd_rs_begin_io() locked app-IO out of an RS extent, and waited then until all previous app-IO in that area finished. (But not only until the disk-IO was finished but until the barrier/epoch ack came in for that == round trip time latency ++) After: As soon as a new app-IO waits wants to start new IO on that RS extent, drbd_rs_begin_io() steps aside (clearing the BME_NO_WRITES flag again). It retries after 100ms. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index 28f85d950781..5570d9bdc863 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -176,14 +176,17 @@ static struct lc_element *_al_get(struct drbd_conf *mdev, unsigned int enr) struct lc_element *al_ext; struct lc_element *tmp; unsigned long al_flags = 0; + int wake; spin_lock_irq(&mdev->al_lock); tmp = lc_find(mdev->resync, enr/AL_EXT_PER_BM_SECT); if (unlikely(tmp != NULL)) { struct bm_extent *bm_ext = lc_entry(tmp, struct bm_extent, lce); if (test_bit(BME_NO_WRITES, &bm_ext->flags)) { - set_bit(BME_PRIORITY, &bm_ext->flags); + wake = !test_and_set_bit(BME_PRIORITY, &bm_ext->flags); spin_unlock_irq(&mdev->al_lock); + if (wake) + wake_up(&mdev->al_wait); return NULL; } } @@ -1135,7 +1138,10 @@ int drbd_rs_begin_io(struct drbd_conf *mdev, sector_t sector) unsigned int enr = BM_SECT_TO_EXT(sector); struct bm_extent *bm_ext; int i, sig; + int sa = 200; /* Step aside 200 times, then grab the extent and let app-IO wait. + 200 times -> 20 seconds. */ +retry: sig = wait_event_interruptible(mdev->al_wait, (bm_ext = _bme_get(mdev, enr))); if (sig) @@ -1146,16 +1152,24 @@ int drbd_rs_begin_io(struct drbd_conf *mdev, sector_t sector) for (i = 0; i < AL_EXT_PER_BM_SECT; i++) { sig = wait_event_interruptible(mdev->al_wait, - !_is_in_al(mdev, enr * AL_EXT_PER_BM_SECT + i)); - if (sig) { + !_is_in_al(mdev, enr * AL_EXT_PER_BM_SECT + i) || + (test_bit(BME_PRIORITY, &bm_ext->flags) && sa)); + + if (sig || (test_bit(BME_PRIORITY, &bm_ext->flags) && sa)) { spin_lock_irq(&mdev->al_lock); if (lc_put(mdev->resync, &bm_ext->lce) == 0) { - clear_bit(BME_NO_WRITES, &bm_ext->flags); + bm_ext->flags = 0; /* clears BME_NO_WRITES and eventually BME_PRIORITY */ mdev->resync_locked--; wake_up(&mdev->al_wait); } spin_unlock_irq(&mdev->al_lock); - return -EINTR; + if (sig) + return -EINTR; + if (schedule_timeout_interruptible(HZ/10)) + return -EINTR; + if (--sa == 0) + dev_warn(DEV,"drbd_rs_begin_io() no longer stepping aside.\n"); + goto retry; } } set_bit(BME_LOCKED, &bm_ext->flags); -- cgit v1.2.3 From aeda1cd6a58009ef21b6d9c09b1a3ded726c2d10 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Tue, 9 Nov 2010 17:45:06 +0100 Subject: drbd: Begin to account BIO processing time before inc_ap_bio() Since inc_ap_bio() might sleep already Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_req.c | 12 ++++++++---- drivers/block/drbd/drbd_req.h | 1 - 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index a8d1ff2bda27..eff0fbf69dd4 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -757,7 +757,7 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr); } -static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio) +static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time) { const int rw = bio_rw(bio); const int size = bio->bi_size; @@ -778,6 +778,7 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio) bio_endio(bio, -ENOMEM); return 0; } + req->start_time = start_time; local = get_ldev(mdev); if (!local) { @@ -1076,12 +1077,15 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio) { unsigned int s_enr, e_enr; struct drbd_conf *mdev = (struct drbd_conf *) q->queuedata; + unsigned long start_time; if (drbd_fail_request_early(mdev, bio_data_dir(bio) & WRITE)) { bio_endio(bio, -EPERM); return 0; } + start_time = jiffies; + /* * what we "blindly" assume: */ @@ -1096,7 +1100,7 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio) if (likely(s_enr == e_enr)) { inc_ap_bio(mdev, 1); - return drbd_make_request_common(mdev, bio); + return drbd_make_request_common(mdev, bio, start_time); } /* can this bio be split generically? @@ -1138,10 +1142,10 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio) D_ASSERT(e_enr == s_enr + 1); - while (drbd_make_request_common(mdev, &bp->bio1)) + while (drbd_make_request_common(mdev, &bp->bio1, start_time)) inc_ap_bio(mdev, 1); - while (drbd_make_request_common(mdev, &bp->bio2)) + while (drbd_make_request_common(mdev, &bp->bio2, start_time)) inc_ap_bio(mdev, 1); dec_ap_bio(mdev); diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index 40d3dcd8fc81..077c47b1e9d7 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -291,7 +291,6 @@ static inline struct drbd_request *drbd_req_new(struct drbd_conf *mdev, req->epoch = 0; req->sector = bio_src->bi_sector; req->size = bio_src->bi_size; - req->start_time = jiffies; INIT_HLIST_NODE(&req->colision); INIT_LIST_HEAD(&req->tl_requests); INIT_LIST_HEAD(&req->w.list); -- cgit v1.2.3 From 127b317844e7cc0458743b604998bece95eab030 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Tue, 16 Nov 2010 10:07:53 +0100 Subject: drbd: use test_and_set_bit() to decide if bm_io_work should be queued Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index f49505cf8d0f..843b90966920 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -3772,6 +3772,7 @@ static int w_bitmap_io(struct drbd_conf *mdev, struct drbd_work *w, int unused) drbd_bm_unlock(mdev); clear_bit(BITMAP_IO, &mdev->flags); + smp_mb__after_clear_bit(); wake_up(&mdev->misc_wait); if (work->done) @@ -3850,11 +3851,8 @@ void drbd_queue_bitmap_io(struct drbd_conf *mdev, set_bit(BITMAP_IO, &mdev->flags); if (atomic_read(&mdev->ap_bio_cnt) == 0) { - if (list_empty(&mdev->bm_io_work.w.list)) { - set_bit(BITMAP_IO_QUEUED, &mdev->flags); + if (!test_and_set_bit(BITMAP_IO_QUEUED, &mdev->flags)) drbd_queue_work(&mdev->data.work, &mdev->bm_io_work.w); - } else - dev_err(DEV, "FIXME avoided double queuing bm_io_work\n"); } } -- cgit v1.2.3 From 8869d683b7491467fd39fcbe79756fce3e6f35e7 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Wed, 17 Nov 2010 18:24:19 +0100 Subject: drbd: Fixed inc_ap_bio() The condition must be checked after perpare_to_wait(). The old implementaion could loose wakeup events. Never observed in real life. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 31 ++++++++++++++----------------- 1 file changed, 14 insertions(+), 17 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 77ac6765fd57..9a944604939f 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -2309,15 +2309,21 @@ static inline int __inc_ap_bio_cond(struct drbd_conf *mdev) return 1; } -/* I'd like to use wait_event_lock_irq, - * but I'm not sure when it got introduced, - * and not sure when it has 3 or 4 arguments */ -static inline void inc_ap_bio(struct drbd_conf *mdev, int count) +static inline int _inc_ap_bio_cond(struct drbd_conf *mdev, int count) { - /* compare with after_state_ch, - * os.conn != C_WF_BITMAP_S && ns.conn == C_WF_BITMAP_S */ - DEFINE_WAIT(wait); + int rv = 0; + + spin_lock_irq(&mdev->req_lock); + rv = __inc_ap_bio_cond(mdev); + if (rv) + atomic_add(count, &mdev->ap_bio_cnt); + spin_unlock_irq(&mdev->req_lock); + + return rv; +} +static inline void inc_ap_bio(struct drbd_conf *mdev, int count) +{ /* we wait here * as long as the device is suspended * until the bitmap is no longer on the fly during connection @@ -2326,16 +2332,7 @@ static inline void inc_ap_bio(struct drbd_conf *mdev, int count) * to avoid races with the reconnect code, * we need to atomic_inc within the spinlock. */ - spin_lock_irq(&mdev->req_lock); - while (!__inc_ap_bio_cond(mdev)) { - prepare_to_wait(&mdev->misc_wait, &wait, TASK_UNINTERRUPTIBLE); - spin_unlock_irq(&mdev->req_lock); - schedule(); - finish_wait(&mdev->misc_wait, &wait); - spin_lock_irq(&mdev->req_lock); - } - atomic_add(count, &mdev->ap_bio_cnt); - spin_unlock_irq(&mdev->req_lock); + wait_event(mdev->misc_wait, _inc_ap_bio_cond(mdev, count)); } static inline void dec_ap_bio(struct drbd_conf *mdev) -- cgit v1.2.3 From 22afd7ee94c1c5857323b677267ba8bace09bcef Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Tue, 16 Nov 2010 15:30:44 +0100 Subject: drbd: Fixed race condition in drbd_queue_bitmap_io May only test for ap_bio_cnt == 0 under req_lock. It can increase only under req_lock. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 843b90966920..975dc5a66549 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -3849,11 +3849,13 @@ void drbd_queue_bitmap_io(struct drbd_conf *mdev, mdev->bm_io_work.done = done; mdev->bm_io_work.why = why; + spin_lock_irq(&mdev->req_lock); set_bit(BITMAP_IO, &mdev->flags); if (atomic_read(&mdev->ap_bio_cnt) == 0) { if (!test_and_set_bit(BITMAP_IO_QUEUED, &mdev->flags)) drbd_queue_work(&mdev->data.work, &mdev->bm_io_work.w); } + spin_unlock_irq(&mdev->req_lock); } /** -- cgit v1.2.3 From ab17b68f4579b460753a416b0afc4446381d876f Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Wed, 17 Nov 2010 16:54:36 +0100 Subject: drbd: Improvements in sanitize_state() The relevant change is that the state change to C_FW_BITMAP_S should implicitly change pdsk to C_CONSISTENT. (Think of it as C_OUTDATED, only without the guarantee that the peer has the outdated written to its meta data) At that opportunity I restructured the switch statement so that it gets evaluated every time. (Has declarative character) Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 144 +++++++++++++++++++++++++---------------- 1 file changed, 89 insertions(+), 55 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 975dc5a66549..74a6d55259af 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -817,6 +817,7 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state union drbd_state ns, const char **warn_sync_abort) { enum drbd_fencing_p fp; + enum drbd_disk_state disk_min, disk_max, pdsk_min, pdsk_max; fp = FP_DONT_CARE; if (get_ldev(mdev)) { @@ -869,61 +870,6 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state ns.conn = C_CONNECTED; } - if (ns.conn >= C_CONNECTED && - ((ns.disk == D_CONSISTENT || ns.disk == D_OUTDATED) || - (ns.disk == D_NEGOTIATING && ns.conn == C_WF_BITMAP_T) || - ns.conn >= C_AHEAD)) { - switch (ns.conn) { - case C_WF_BITMAP_T: - case C_PAUSED_SYNC_T: - case C_BEHIND: - ns.disk = D_OUTDATED; - break; - case C_CONNECTED: - case C_WF_BITMAP_S: - case C_SYNC_SOURCE: - case C_PAUSED_SYNC_S: - case C_AHEAD: - ns.disk = D_UP_TO_DATE; - break; - case C_SYNC_TARGET: - ns.disk = D_INCONSISTENT; - dev_warn(DEV, "Implicitly set disk state Inconsistent!\n"); - break; - } - if (os.disk == D_OUTDATED && ns.disk == D_UP_TO_DATE) - dev_warn(DEV, "Implicitly set disk from Outdated to UpToDate\n"); - } - - if (ns.conn >= C_CONNECTED && - (ns.pdsk == D_CONSISTENT || ns.pdsk == D_OUTDATED || ns.conn >= C_AHEAD)) { - switch (ns.conn) { - case C_CONNECTED: - case C_WF_BITMAP_T: - case C_PAUSED_SYNC_T: - case C_SYNC_TARGET: - case C_BEHIND: - ns.pdsk = D_UP_TO_DATE; - break; - case C_WF_BITMAP_S: - case C_PAUSED_SYNC_S: - case C_AHEAD: - /* remap any consistent state to D_OUTDATED, - * but disallow "upgrade" of not even consistent states. - */ - ns.pdsk = - (D_DISKLESS < os.pdsk && os.pdsk < D_OUTDATED) - ? os.pdsk : D_OUTDATED; - break; - case C_SYNC_SOURCE: - ns.pdsk = D_INCONSISTENT; - dev_warn(DEV, "Implicitly set pdsk Inconsistent!\n"); - break; - } - if (os.pdsk == D_OUTDATED && ns.pdsk == D_UP_TO_DATE) - dev_warn(DEV, "Implicitly set pdsk from Outdated to UpToDate\n"); - } - /* Connection breaks down before we finished "Negotiating" */ if (ns.conn < C_CONNECTED && ns.disk == D_NEGOTIATING && get_ldev_if_state(mdev, D_NEGOTIATING)) { @@ -938,6 +884,94 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state put_ldev(mdev); } + /* D_CONSISTENT and D_OUTDATED vanish when we get connected */ + if (ns.conn >= C_CONNECTED && ns.conn < C_AHEAD) { + if (ns.disk == D_CONSISTENT || ns.disk == D_OUTDATED) + ns.disk = D_UP_TO_DATE; + if (ns.pdsk == D_CONSISTENT || ns.pdsk == D_OUTDATED) + ns.pdsk = D_UP_TO_DATE; + } + + /* Implications of the connection stat on the disk states */ + disk_min = D_DISKLESS; + disk_max = D_UP_TO_DATE; + pdsk_min = D_INCONSISTENT; + pdsk_max = D_UNKNOWN; + switch ((enum drbd_conns)ns.conn) { + case C_WF_BITMAP_T: + case C_PAUSED_SYNC_T: + case C_STARTING_SYNC_T: + case C_WF_SYNC_UUID: + case C_BEHIND: + disk_min = D_INCONSISTENT; + disk_max = D_OUTDATED; + pdsk_min = D_UP_TO_DATE; + pdsk_max = D_UP_TO_DATE; + break; + case C_VERIFY_S: + case C_VERIFY_T: + disk_min = D_UP_TO_DATE; + disk_max = D_UP_TO_DATE; + pdsk_min = D_UP_TO_DATE; + pdsk_max = D_UP_TO_DATE; + break; + case C_CONNECTED: + disk_min = D_DISKLESS; + disk_max = D_UP_TO_DATE; + pdsk_min = D_DISKLESS; + pdsk_max = D_UP_TO_DATE; + break; + case C_WF_BITMAP_S: + case C_PAUSED_SYNC_S: + case C_STARTING_SYNC_S: + case C_AHEAD: + disk_min = D_UP_TO_DATE; + disk_max = D_UP_TO_DATE; + pdsk_min = D_INCONSISTENT; + pdsk_max = D_CONSISTENT; /* D_OUTDATED would be nice. But explicit outdate necessary*/ + break; + case C_SYNC_TARGET: + disk_min = D_INCONSISTENT; + disk_max = D_INCONSISTENT; + pdsk_min = D_UP_TO_DATE; + pdsk_max = D_UP_TO_DATE; + break; + case C_SYNC_SOURCE: + disk_min = D_UP_TO_DATE; + disk_max = D_UP_TO_DATE; + pdsk_min = D_INCONSISTENT; + pdsk_max = D_INCONSISTENT; + break; + case C_STANDALONE: + case C_DISCONNECTING: + case C_UNCONNECTED: + case C_TIMEOUT: + case C_BROKEN_PIPE: + case C_NETWORK_FAILURE: + case C_PROTOCOL_ERROR: + case C_TEAR_DOWN: + case C_WF_CONNECTION: + case C_WF_REPORT_PARAMS: + case C_MASK: + break; + } + if (ns.disk > disk_max) + ns.disk = disk_max; + + if (ns.disk < disk_min) { + dev_warn(DEV, "Implicitly set disk from %s to %s\n", + drbd_disk_str(ns.disk), drbd_disk_str(disk_min)); + ns.disk = disk_min; + } + if (ns.pdsk > pdsk_max) + ns.pdsk = pdsk_max; + + if (ns.pdsk < pdsk_min) { + dev_warn(DEV, "Implicitly set pdsk from %s to %s\n", + drbd_disk_str(ns.pdsk), drbd_disk_str(pdsk_min)); + ns.pdsk = pdsk_min; + } + if (fp == FP_STONITH && (ns.role == R_PRIMARY && ns.conn < C_CONNECTED && ns.pdsk > D_OUTDATED) && !(os.role == R_PRIMARY && os.conn < C_CONNECTED && os.pdsk > D_OUTDATED)) -- cgit v1.2.3 From 3719094ec2dec411b3151f10048316d787e086f9 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Wed, 10 Nov 2010 12:08:37 +0100 Subject: drbd: Starting with protocol 96 we can allow app-IO while receiving the bitmap * C_STARTING_SYNC_S, C_STARTING_SYNC_T In these states the bitmap gets written to disk. Locking out of app-IO is done by using the drbd_queue_bitmap_io() and drbd_bitmap_io() functions these days. It is no longer necessary to lock out app-IO based on the connection state. App-IO that may come in after the BITMAP_IO flag got cleared before the state transition to C_SYNC_(SOURCE|TARGET) does not get mirrored, sets a bit in the local bitmap, that is already set, therefore changes nothing. * C_WF_BITMAP_S In this state we send updates (P_OUT_OF_SYNC packets). With that we make sure they have the same number of bits when going into the C_SYNC_(SOURCE|TARGET) connection state. * C_UNCONNECTED: The receiver starts, no need to lock out IO. * C_DISCONNECTING: in drbd_disconnect() we had a wait_event() to wait until ap_bio_cnt reaches 0. Removed that. * C_TIMEOUT, C_BROKEN_PIPE, C_NETWORK_FAILURE C_PROTOCOL_ERROR, C_TEAR_DOWN: Same as C_DISCONNECTING * C_WF_REPORT_PARAMS: IO still possible since that is still like C_WF_CONNECTION. And we do not need to send barriers in C_WF_BITMAP_S connection state. Allow concurrent accesses to the bitmap when receiving the bitmap. Everything gets ORed anyways. A drbd_free_tl_hash() is in after_state_chg_work(). At that point all the work items of the last connections must have been processed. Introduced a call to drbd_free_tl_hash() into drbd_free_mdev() for paranoia reasons. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 19 ++++++++++++------- drivers/block/drbd/drbd_main.c | 1 + drivers/block/drbd/drbd_receiver.c | 13 ++----------- drivers/block/drbd/drbd_req.c | 37 ++++++++++++++++++++++++------------- 4 files changed, 39 insertions(+), 31 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 9a944604939f..38bbaba8bd89 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -2213,8 +2213,9 @@ static inline int drbd_get_max_buffers(struct drbd_conf *mdev) return mxb; } -static inline int drbd_state_is_stable(union drbd_state s) +static inline int drbd_state_is_stable(struct drbd_conf *mdev) { + union drbd_state s = mdev->state; /* DO NOT add a default clause, we want the compiler to warn us * for any newly introduced state we may have forgotten to add here */ @@ -2233,11 +2234,7 @@ static inline int drbd_state_is_stable(union drbd_state s) case C_PAUSED_SYNC_T: case C_AHEAD: case C_BEHIND: - /* maybe stable, look at the disk state */ - break; - - /* no new io accepted during tansitional states - * like handshake or teardown */ + /* transitional states, IO allowed */ case C_DISCONNECTING: case C_UNCONNECTED: case C_TIMEOUT: @@ -2248,7 +2245,15 @@ static inline int drbd_state_is_stable(union drbd_state s) case C_WF_REPORT_PARAMS: case C_STARTING_SYNC_S: case C_STARTING_SYNC_T: + break; + + /* Allow IO in BM exchange states with new protocols */ case C_WF_BITMAP_S: + if (mdev->agreed_pro_version < 96) + return 0; + break; + + /* no new io accepted in these states */ case C_WF_BITMAP_T: case C_WF_SYNC_UUID: case C_MASK: @@ -2297,7 +2302,7 @@ static inline int __inc_ap_bio_cond(struct drbd_conf *mdev) * to start during "stable" states. */ /* no new io accepted when attaching or detaching the disk */ - if (!drbd_state_is_stable(mdev->state)) + if (!drbd_state_is_stable(mdev)) return 0; /* since some older kernels don't have atomic_add_unless, diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 74a6d55259af..14afbd4e53a5 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -3334,6 +3334,7 @@ void drbd_free_mdev(struct drbd_conf *mdev) put_disk(mdev->vdisk); blk_cleanup_queue(mdev->rq_queue); free_cpumask_var(mdev->cpu_mask); + drbd_free_tl_hash(mdev); kfree(mdev); } diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 0630a2e122d3..f4aba9f894ba 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3468,9 +3468,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne int ok = FALSE; struct p_header80 *h = &mdev->data.rbuf.header.h80; - wait_event(mdev->misc_wait, !atomic_read(&mdev->ap_bio_cnt)); - - drbd_bm_lock(mdev, "receive bitmap"); + /* drbd_bm_lock(mdev, "receive bitmap"); By intention no bm_lock */ /* maybe we should use some per thread scratch page, * and allocate that during initial device creation? */ @@ -3542,7 +3540,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne ok = TRUE; out: - drbd_bm_unlock(mdev); + /* drbd_bm_unlock(mdev); by intention no lock */ if (ok && mdev->state.conn == C_WF_BITMAP_S) drbd_start_resync(mdev, C_SYNC_SOURCE); free_page((unsigned long) buffer); @@ -3804,13 +3802,6 @@ static void drbd_disconnect(struct drbd_conf *mdev) if (os.conn == C_DISCONNECTING) { wait_event(mdev->net_cnt_wait, atomic_read(&mdev->net_cnt) == 0); - if (!is_susp(mdev->state)) { - /* we must not free the tl_hash - * while application io is still on the fly */ - wait_event(mdev->misc_wait, !atomic_read(&mdev->ap_bio_cnt)); - drbd_free_tl_hash(mdev); - } - crypto_free_hash(mdev->cram_hmac_tfm); mdev->cram_hmac_tfm = NULL; diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index eff0fbf69dd4..4cb8247d83c9 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -142,7 +142,7 @@ static void _about_to_complete_local_write(struct drbd_conf *mdev, /* before we can signal completion to the upper layers, * we may need to close the current epoch */ - if (mdev->state.conn >= C_CONNECTED && mdev->state.conn < C_AHEAD && + if (mdev->state.conn >= C_WF_BITMAP_T && mdev->state.conn < C_AHEAD && req->epoch == mdev->newest_tle->br_number) queue_barrier(mdev); @@ -757,6 +757,23 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr); } +static int drbd_should_do_remote(struct drbd_conf *mdev) +{ + union drbd_state s = mdev->state; + + return s.pdsk == D_UP_TO_DATE || + (s.pdsk >= D_INCONSISTENT && + s.conn >= C_WF_BITMAP_T && + s.conn < C_AHEAD); +} +static int drbd_should_send_oos(struct drbd_conf *mdev) +{ + union drbd_state s = mdev->state; + + return s.pdsk >= D_INCONSISTENT && + (s.conn == C_AHEAD || s.conn == C_WF_BITMAP_S); +} + static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time) { const int rw = bio_rw(bio); @@ -828,12 +845,9 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, uns drbd_al_begin_io(mdev, sector); } - remote = remote && (mdev->state.pdsk == D_UP_TO_DATE || - (mdev->state.pdsk >= D_INCONSISTENT && - mdev->state.conn >= C_CONNECTED && - mdev->state.conn < C_AHEAD)); - send_oos = (rw == WRITE && mdev->state.conn == C_AHEAD && - mdev->state.pdsk >= D_INCONSISTENT); + remote = remote && drbd_should_do_remote(mdev); + send_oos = rw == WRITE && drbd_should_send_oos(mdev); + D_ASSERT(!(remote && send_oos)); if (!(local || remote) && !is_susp(mdev->state)) { if (__ratelimit(&drbd_ratelimit_state)) @@ -873,12 +887,9 @@ allocate_barrier: } if (remote || send_oos) { - remote = (mdev->state.pdsk == D_UP_TO_DATE || - (mdev->state.pdsk >= D_INCONSISTENT && - mdev->state.conn >= C_CONNECTED && - mdev->state.conn < C_AHEAD)); - send_oos = (rw == WRITE && mdev->state.conn == C_AHEAD && - mdev->state.pdsk >= D_INCONSISTENT); + remote = drbd_should_do_remote(mdev); + send_oos = rw == WRITE && drbd_should_send_oos(mdev); + D_ASSERT(!(remote && send_oos)); if (!(remote || send_oos)) dev_warn(DEV, "lost connection while grabbing the req_lock!\n"); -- cgit v1.2.3 From 1fc80cf37810d6b00cac27a219b8ecab2010adac Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 22 Nov 2010 14:18:47 +0100 Subject: drbd: Becoming sync target may not happen out of < C_WF_REPORT_PARAMS This patch is acutally a necessary addendum to the patch "fix for spurious full sync (becoming sync target looked like invalidate)" Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 14afbd4e53a5..8b8a38dc6492 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -800,6 +800,10 @@ static int is_valid_state_transition(struct drbd_conf *mdev, os.conn < C_CONNECTED) rv = SS_NEED_CONNECTION; + if ((ns.conn == C_SYNC_TARGET || ns.conn == C_SYNC_SOURCE) + && os.conn < C_WF_REPORT_PARAMS) + rv = SS_NEED_CONNECTION; /* No NetworkFailure -> SyncTarget etc... */ + return rv; } -- cgit v1.2.3 From c507f46f26661d4d0dc95a1b1271df5855ab4602 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 22 Nov 2010 15:49:17 +0100 Subject: drbd: Removed 20 seconds upper bound for side-stepping Given low-enough network bandwidth combined with a IO pattern that hammers onto a single RS-extent, side-stepping might be necessary for much longer times. Changed the code to print a single informal message after 20 seconds, but it keeps on stepping aside forever. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index 5570d9bdc863..4a1b199f4ae7 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -1153,7 +1153,7 @@ retry: for (i = 0; i < AL_EXT_PER_BM_SECT; i++) { sig = wait_event_interruptible(mdev->al_wait, !_is_in_al(mdev, enr * AL_EXT_PER_BM_SECT + i) || - (test_bit(BME_PRIORITY, &bm_ext->flags) && sa)); + test_bit(BME_PRIORITY, &bm_ext->flags)); if (sig || (test_bit(BME_PRIORITY, &bm_ext->flags) && sa)) { spin_lock_irq(&mdev->al_lock); @@ -1167,8 +1167,9 @@ retry: return -EINTR; if (schedule_timeout_interruptible(HZ/10)) return -EINTR; - if (--sa == 0) - dev_warn(DEV,"drbd_rs_begin_io() no longer stepping aside.\n"); + if (sa && --sa == 0) + dev_warn(DEV,"drbd_rs_begin_io() stepped aside for 20sec." + "Resync stalled?\n"); goto retry; } } -- cgit v1.2.3 From 3da127fa887e5187ede702b835770634d705f8b2 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 24 Nov 2010 10:33:02 +0100 Subject: drbd: increase module count on /proc/drbd access If someone holds /proc/drbd open, previously rmmod would "succeed" in starting the unload, but then block on remove_proc_entry, leading to a situation where the lsmod does not show drbd anymore, but /proc/drbd being still there (but no longer accessible). I'd rather have rmmod fail up front in this case. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_proc.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 49d817cfe865..efba62cd2e58 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -34,6 +34,7 @@ #include "drbd_int.h" static int drbd_proc_open(struct inode *inode, struct file *file); +static int drbd_proc_release(struct inode *inode, struct file *file); struct proc_dir_entry *drbd_proc; @@ -42,7 +43,7 @@ const struct file_operations drbd_proc_fops = { .open = drbd_proc_open, .read = seq_read, .llseek = seq_lseek, - .release = single_release, + .release = drbd_proc_release, }; void seq_printf_with_thousands_grouping(struct seq_file *seq, long v) @@ -304,7 +305,15 @@ static int drbd_seq_show(struct seq_file *seq, void *v) static int drbd_proc_open(struct inode *inode, struct file *file) { - return single_open(file, drbd_seq_show, PDE(inode)->data); + if (try_module_get(THIS_MODULE)) + return single_open(file, drbd_seq_show, PDE(inode)->data); + return -ENODEV; +} + +static int drbd_proc_release(struct inode *inode, struct file *file) +{ + module_put(THIS_MODULE); + return single_release(inode, file); } /* PROC FS stuff end */ -- cgit v1.2.3 From 17a93f3007c13003c739a19d0814cb5c2d21daba Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 24 Nov 2010 10:37:35 +0100 Subject: drbd: remove /proc/drbd before unregistering from netlink There still exists a (theoretical) race on module unload, where /proc/drbd may still exist, but the netlink callback has been unregistered already, allowing drbdsetup to shout without listeners, and get no reply. Reorder remove_proc_entry and unregister of netlink callback. drbdsetup first checks for existence of the proc entry, and if that is missing, won't even try to contact the module. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 8b8a38dc6492..150ed16d26ef 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -3174,11 +3174,20 @@ static void drbd_cleanup(void) unregister_reboot_notifier(&drbd_notifier); + /* first remove proc, + * drbdsetup uses it's presence to detect + * whether DRBD is loaded. + * If we would get stuck in proc removal, + * but have netlink already deregistered, + * some drbdsetup commands may wait forever + * for an answer. + */ + if (drbd_proc) + remove_proc_entry("drbd", NULL); + drbd_nl_cleanup(); if (minor_table) { - if (drbd_proc) - remove_proc_entry("drbd", NULL); i = minor_count; while (i--) drbd_delete_device(i); -- cgit v1.2.3 From 3e3a7766c2e6995ac98e7855017abc3544d54e08 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 24 Nov 2010 10:41:45 +0100 Subject: drbd: use kzalloc and memset(,0,) to start with clean buffers in drbd_nl Make sure we start with clean buffers to not accidentally send garbage back to userspace. Note: has not been observed; but just in case. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index f969d8717e23..80a389d24cdd 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2211,7 +2211,7 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms reply_size += cm->reply_body_size; /* allocation not in the IO path, cqueue thread context */ - cn_reply = kmalloc(reply_size, GFP_KERNEL); + cn_reply = kzalloc(reply_size, GFP_KERNEL); if (!cn_reply) { retcode = ERR_NOMEM; goto fail; @@ -2382,7 +2382,7 @@ void drbd_bcast_ee(struct drbd_conf *mdev, /* receiver thread context, which is not in the writeout path (of this node), * but may be in the writeout path of the _other_ node. * GFP_NOIO to avoid potential "distributed deadlock". */ - cn_reply = kmalloc( + cn_reply = kzalloc( sizeof(struct cn_msg)+ sizeof(struct drbd_nl_cfg_reply)+ sizeof(struct dump_ee_tag_len_struct)+ @@ -2517,6 +2517,7 @@ void drbd_nl_send_reply(struct cn_msg *req, int ret_code) (struct drbd_nl_cfg_reply *)cn_reply->data; int rr; + memset(buffer, 0, sizeof(buffer)); cn_reply->id = req->id; cn_reply->seq = req->seq; -- cgit v1.2.3 From 42ff269d1022a86be4f526cf674998c47b7ab856 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 24 Nov 2010 10:11:14 +0100 Subject: drbd: add packet_type 27 (return_code_only) to netlink api In case we ever should add an other packet type, we must not reuse 27, as that currently used for "empty" return code only replies. Document it as such. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 6 ++++-- include/linux/drbd_nl.h | 6 +++++- include/linux/drbd_tag_magic.h | 1 + 3 files changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 80a389d24cdd..6a6dde6c51c6 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2195,7 +2195,8 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms goto fail; } - if (nlp->packet_type >= P_nl_after_last_packet) { + if (nlp->packet_type >= P_nl_after_last_packet || + nlp->packet_type == P_return_code_only) { retcode = ERR_PACKET_NR; goto fail; } @@ -2219,7 +2220,7 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms reply = (struct drbd_nl_cfg_reply *) cn_reply->data; reply->packet_type = - cm->reply_body_size ? nlp->packet_type : P_nl_after_last_packet; + cm->reply_body_size ? nlp->packet_type : P_return_code_only; reply->minor = nlp->drbd_minor; reply->ret_code = NO_ERROR; /* Might by modified by cm->function. */ /* reply->tag_list; might be modified by cm->function. */ @@ -2525,6 +2526,7 @@ void drbd_nl_send_reply(struct cn_msg *req, int ret_code) cn_reply->len = sizeof(struct drbd_nl_cfg_reply); cn_reply->flags = 0; + reply->packet_type = P_return_code_only; reply->minor = ((struct drbd_nl_cfg_req *)req->data)->drbd_minor; reply->ret_code = ret_code; diff --git a/include/linux/drbd_nl.h b/include/linux/drbd_nl.h index 8cde3945d1f7..6fc614b06c4d 100644 --- a/include/linux/drbd_nl.h +++ b/include/linux/drbd_nl.h @@ -146,9 +146,13 @@ NL_PACKET(new_c_uuid, 26, NL_BIT( 63, T_MANDATORY, clear_bm) ) +#ifdef NL_RESPONSE +NL_RESPONSE(return_code_only, 27) +#endif + #undef NL_PACKET #undef NL_INTEGER #undef NL_INT64 #undef NL_BIT #undef NL_STRING - +#undef NL_RESPONSE diff --git a/include/linux/drbd_tag_magic.h b/include/linux/drbd_tag_magic.h index fcdff8410e99..f14a165e82dc 100644 --- a/include/linux/drbd_tag_magic.h +++ b/include/linux/drbd_tag_magic.h @@ -7,6 +7,7 @@ /* declare packet_type enums */ enum packet_types { #define NL_PACKET(name, number, fields) P_ ## name = number, +#define NL_RESPONSE(name, number) P_ ## name = number, #define NL_INTEGER(pn, pr, member) #define NL_INT64(pn, pr, member) #define NL_BIT(pn, pr, member) -- cgit v1.2.3 From 2561b9c1f1d63077c41903fc6ad58dc9ec47248b Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Fri, 3 Dec 2010 15:22:48 +0100 Subject: drbd: --force option for disconnect As the network connection can be lost at any time, a --force option for disconnect is just a matter of completeness. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 15 +++++++++++++++ include/linux/drbd_nl.h | 4 +++- 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 6a6dde6c51c6..cd0459f0403f 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1531,6 +1531,21 @@ static int drbd_nl_disconnect(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl struct drbd_nl_cfg_reply *reply) { int retcode; + struct disconnect dc; + + memset(&dc, 0, sizeof(struct disconnect)); + if (!disconnect_from_tags(mdev, nlp->tag_list, &dc)) { + retcode = ERR_MANDATORY_TAG; + goto fail; + } + + if (dc.force) { + spin_lock_irq(&mdev->req_lock); + if (mdev->state.conn >= C_WF_CONNECTION) + _drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), CS_HARD, NULL); + spin_unlock_irq(&mdev->req_lock); + goto done; + } retcode = _drbd_request_state(mdev, NS(conn, C_DISCONNECTING), CS_ORDERED); diff --git a/include/linux/drbd_nl.h b/include/linux/drbd_nl.h index 6fc614b06c4d..ab6159e4fcf0 100644 --- a/include/linux/drbd_nl.h +++ b/include/linux/drbd_nl.h @@ -69,7 +69,9 @@ NL_PACKET(net_conf, 5, NL_BIT( 70, T_MANDATORY, dry_run) ) -NL_PACKET(disconnect, 6, ) +NL_PACKET(disconnect, 6, + NL_BIT( 84, T_MAY_IGNORE, force) +) NL_PACKET(resize, 7, NL_INT64( 29, T_MAY_IGNORE, resize_size) -- cgit v1.2.3 From 09b9e7979378fe070784de20e50bb1d42aa643ab Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Fri, 3 Dec 2010 16:04:24 +0100 Subject: drbd: Implemented the before-resync-source handler Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_worker.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index ab5cff502f5b..e201f6f82c0e 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1499,6 +1499,20 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); return; } + } else /* C_SYNC_SOURCE */ { + r = drbd_khelper(mdev, "before-resync-source"); + r = (r >> 8) & 0xff; + if (r > 0) { + if (r == 3) { + dev_info(DEV, "before-resync-source handler returned %d, " + "ignoring. Old userland tools?", r); + } else { + dev_info(DEV, "before-resync-source handler returned %d, " + "dropping connection.\n", r); + drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); + return; + } + } } drbd_state_lock(mdev); -- cgit v1.2.3 From 8a3c104438be4986a77f332009b695fcac48f620 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Sun, 5 Dec 2010 14:11:14 +0100 Subject: drbd: fix regression, we need to close drbd epochs during normal operation commit e2041475e6ddb081734d161f6421977323f5a9b9 drbd: Starting with protocol 96 we can allow app-IO while receiving the bitmap Contained a bad chunk that tried to optimize away drbd barriers during bitmap exchange, but accidentally dropped them for normal mode as well. Impact: depending on activity log size and access pattern, activity log extents may not be recycled in time, causeing IO to block indefinetely. Fix: skip drbd barriers only if there is no connection to send them on, or the request being completed has not been on the network at all. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_req.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 4cb8247d83c9..de5fe70f2b42 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -140,9 +140,14 @@ static void _about_to_complete_local_write(struct drbd_conf *mdev, struct hlist_node *n; struct hlist_head *slot; - /* before we can signal completion to the upper layers, - * we may need to close the current epoch */ - if (mdev->state.conn >= C_WF_BITMAP_T && mdev->state.conn < C_AHEAD && + /* Before we can signal completion to the upper layers, + * we may need to close the current epoch. + * We can skip this, if this request has not even been sent, because we + * did not have a fully established connection yet/anymore, during + * bitmap exchange, or while we are C_AHEAD due to congestion policy. + */ + if (mdev->state.conn >= C_CONNECTED && + (s & RQ_NET_SENT) != 0 && req->epoch == mdev->newest_tle->br_number) queue_barrier(mdev); -- cgit v1.2.3 From 7e458c32da946bd4f6aea476b61b79575578f834 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Wed, 8 Dec 2010 19:02:09 +0100 Subject: drbd: Removed an unnecessary #undef Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index f4aba9f894ba..f8cd3f230d84 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -2963,7 +2963,6 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned } put_ldev(mdev); } -#undef min_not_zero ddsf = be16_to_cpu(p->dds_flags); if (get_ldev(mdev)) { -- cgit v1.2.3 From 220df4d006ed561b8fd4fbd8c01c6c28d6143653 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 9 Dec 2010 15:21:02 +0100 Subject: drbd: fix incomplete error message Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index f8cd3f230d84..55fee1a6c647 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -2499,7 +2499,7 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol return C_MASK; } if (hg == -1001) { - dev_alert(DEV, "To resolve this both sides have to support at least protocol\n"); + dev_alert(DEV, "To resolve this both sides have to support at least protocol 91\n"); return C_MASK; } -- cgit v1.2.3 From cab2f74b45127a78b9a2980f54ca16cc9f45ddac Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Thu, 9 Dec 2010 16:08:46 +0100 Subject: drbd: Make sure that drbd_send() has sent the right number of bytes Reviewed-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> --- drivers/block/drbd/drbd_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 150ed16d26ef..50b6841d135b 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2580,7 +2580,7 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req) if (ok && dgs) { dgb = mdev->int_dig_out; drbd_csum_bio(mdev, mdev->integrity_w_tfm, req->master_bio, dgb); - ok = drbd_send(mdev, mdev->data.socket, dgb, dgs, 0); + ok = dgs == drbd_send(mdev, mdev->data.socket, dgb, dgs, 0); } if (ok) { /* For protocol A, we have to memcpy the payload into @@ -2662,7 +2662,7 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd, if (ok && dgs) { dgb = mdev->int_dig_out; drbd_csum_ee(mdev, mdev->integrity_w_tfm, e, dgb); - ok = drbd_send(mdev, mdev->data.socket, dgb, dgs, 0); + ok = dgs == drbd_send(mdev, mdev->data.socket, dgb, dgs, 0); } if (ok) ok = _drbd_send_zc_ee(mdev, e); -- cgit v1.2.3 From 96756784a6250c7d9878671ef3386b93b0c576d4 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Thu, 9 Dec 2010 16:23:43 +0100 Subject: drbd: Remove left-over prototype Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 38bbaba8bd89..3268d201025b 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1236,8 +1236,6 @@ extern int drbd_send_oos(struct drbd_conf *mdev, struct drbd_request *req); extern int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd, struct drbd_epoch_entry *e); extern int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req); -extern int _drbd_send_barrier(struct drbd_conf *mdev, - struct drbd_tl_epoch *barrier); extern int drbd_send_drequest(struct drbd_conf *mdev, int cmd, sector_t sector, int size, u64 block_id); extern int drbd_send_drequest_csum(struct drbd_conf *mdev, -- cgit v1.2.3 From 2f58dcfc85b6800efd938f755e6c5f9979f4aa5c Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Mon, 13 Dec 2010 17:48:19 +0100 Subject: drbd: Rename drbd_make_request_26 to drbd_make_request Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 2 +- drivers/block/drbd/drbd_main.c | 2 +- drivers/block/drbd/drbd_req.c | 6 +++--- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 3268d201025b..7514cf7a958c 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1479,7 +1479,7 @@ extern void drbd_free_mdev(struct drbd_conf *mdev); extern int proc_details; /* drbd_req */ -extern int drbd_make_request_26(struct request_queue *q, struct bio *bio); +extern int drbd_make_request(struct request_queue *q, struct bio *bio); extern int drbd_read_remote(struct drbd_conf *mdev, struct drbd_request *req); extern int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct bio_vec *bvec); extern int is_valid_ar_handle(struct drbd_request *, sector_t); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 50b6841d135b..7d60527c3b5a 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -3284,7 +3284,7 @@ struct drbd_conf *drbd_new_device(unsigned int minor) q->backing_dev_info.congested_fn = drbd_congested; q->backing_dev_info.congested_data = mdev; - blk_queue_make_request(q, drbd_make_request_26); + blk_queue_make_request(q, drbd_make_request); blk_queue_max_hw_sectors(q, DRBD_MAX_BIO_SIZE >> 9); blk_queue_bounce_limit(q, BLK_BOUNCE_ANY); blk_queue_merge_bvec(q, drbd_merge_bvec); diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index de5fe70f2b42..079213d93490 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -884,7 +884,7 @@ allocate_barrier: if (is_susp(mdev->state)) { /* If we got suspended, use the retry mechanism of generic_make_request() to restart processing of this - bio. In the next call to drbd_make_request_26 + bio. In the next call to drbd_make_request we sleep in inc_ap_bio() */ ret = 1; spin_unlock_irq(&mdev->req_lock); @@ -1089,7 +1089,7 @@ static int drbd_fail_request_early(struct drbd_conf *mdev, int is_write) return 0; } -int drbd_make_request_26(struct request_queue *q, struct bio *bio) +int drbd_make_request(struct request_queue *q, struct bio *bio) { unsigned int s_enr, e_enr; struct drbd_conf *mdev = (struct drbd_conf *) q->queuedata; @@ -1182,7 +1182,7 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio) * As long as the BIO is empty we have to allow at least one bvec, * regardless of size and offset. so the resulting bio may still * cross extent boundaries. those are dealt with (bio_split) in - * drbd_make_request_26. + * drbd_make_request. */ int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct bio_vec *bvec) { -- cgit v1.2.3 From 662d91a23a8e8451ca47c08d5cff710fd080fd3a Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Tue, 7 Dec 2010 03:01:41 +0100 Subject: drbd: Get rid of unnecessary macros (1) This macro doesn't save much code, but makes things a lot harder to read. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 71 ++++++++++++++++++++++++------------------ 1 file changed, 40 insertions(+), 31 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 7d60527c3b5a..f43e2aa354a6 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -674,21 +674,6 @@ void print_st_err(struct drbd_conf *mdev, } -#define drbd_peer_str drbd_role_str -#define drbd_pdsk_str drbd_disk_str - -#define drbd_susp_str(A) ((A) ? "1" : "0") -#define drbd_aftr_isp_str(A) ((A) ? "1" : "0") -#define drbd_peer_isp_str(A) ((A) ? "1" : "0") -#define drbd_user_isp_str(A) ((A) ? "1" : "0") - -#define PSC(A) \ - ({ if (ns.A != os.A) { \ - pbp += sprintf(pbp, #A "( %s -> %s ) ", \ - drbd_##A##_str(os.A), \ - drbd_##A##_str(ns.A)); \ - } }) - /** * is_valid_state() - Returns an SS_ error code if ns is not valid * @mdev: DRBD device. @@ -1084,22 +1069,46 @@ int __drbd_set_state(struct drbd_conf *mdev, dev_warn(DEV, "%s aborted.\n", warn_sync_abort); { - char *pbp, pb[300]; - pbp = pb; - *pbp = 0; - PSC(role); - PSC(peer); - PSC(conn); - PSC(disk); - PSC(pdsk); - if (is_susp(ns) != is_susp(os)) - pbp += sprintf(pbp, "susp( %s -> %s ) ", - drbd_susp_str(is_susp(os)), - drbd_susp_str(is_susp(ns))); - PSC(aftr_isp); - PSC(peer_isp); - PSC(user_isp); - dev_info(DEV, "%s\n", pb); + char *pbp, pb[300]; + pbp = pb; + *pbp = 0; + if (ns.role != os.role) + pbp += sprintf(pbp, "role( %s -> %s ) ", + drbd_role_str(os.role), + drbd_role_str(ns.role)); + if (ns.peer != os.peer) + pbp += sprintf(pbp, "peer( %s -> %s ) ", + drbd_role_str(os.peer), + drbd_role_str(ns.peer)); + if (ns.conn != os.conn) + pbp += sprintf(pbp, "conn( %s -> %s ) ", + drbd_conn_str(os.conn), + drbd_conn_str(ns.conn)); + if (ns.disk != os.disk) + pbp += sprintf(pbp, "disk( %s -> %s ) ", + drbd_disk_str(os.disk), + drbd_disk_str(ns.disk)); + if (ns.pdsk != os.pdsk) + pbp += sprintf(pbp, "pdsk( %s -> %s ) ", + drbd_disk_str(os.pdsk), + drbd_disk_str(ns.pdsk)); + if (is_susp(ns) != is_susp(os)) + pbp += sprintf(pbp, "susp( %d -> %d ) ", + is_susp(os), + is_susp(ns)); + if (ns.aftr_isp != os.aftr_isp) + pbp += sprintf(pbp, "aftr_isp( %d -> %d ) ", + os.aftr_isp, + ns.aftr_isp); + if (ns.peer_isp != os.peer_isp) + pbp += sprintf(pbp, "peer_isp( %d -> %d ) ", + os.peer_isp, + ns.peer_isp); + if (ns.user_isp != os.user_isp) + pbp += sprintf(pbp, "user_isp( %d -> %d ) ", + os.user_isp, + ns.user_isp); + dev_info(DEV, "%s\n", pb); } /* solve the race between becoming unconfigured, -- cgit v1.2.3 From 0cf9d27e38447efe5e5edce155a66a782a5aac4a Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Tue, 7 Dec 2010 10:43:29 +0100 Subject: drbd: Get rid of unnecessary macros (2) The FAULT_ACTIVE macro just wraps the drbd_insert_fault macro for no apparent reason. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 4 ++-- drivers/block/drbd/drbd_bitmap.c | 4 ++-- drivers/block/drbd/drbd_int.h | 9 ++++----- drivers/block/drbd/drbd_receiver.c | 4 ++-- drivers/block/drbd/drbd_req.c | 6 +++--- drivers/block/drbd/drbd_wrappers.h | 2 +- 6 files changed, 14 insertions(+), 15 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index 4a1b199f4ae7..2e8a95ce79b1 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -92,7 +92,7 @@ static int _drbd_md_sync_page_io(struct drbd_conf *mdev, bio->bi_end_io = drbd_md_io_complete; bio->bi_rw = rw; - if (FAULT_ACTIVE(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD)) + if (drbd_insert_fault(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD)) bio_endio(bio, -EIO); else submit_bio(rw, bio); @@ -685,7 +685,7 @@ void drbd_al_to_on_disk_bm(struct drbd_conf *mdev) for (i = 0; i < nr_elements; i++) { if (bios[i] == NULL) break; - if (FAULT_ACTIVE(mdev, DRBD_FAULT_MD_WR)) { + if (drbd_insert_fault(mdev, DRBD_FAULT_MD_WR)) { bios[i]->bi_rw = WRITE; bio_endio(bios[i], -EIO); } else { diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 0645ca829a94..5dafbabe9617 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -502,7 +502,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) D_ASSERT(b->bm_pages != NULL); npages = b->bm_pages; } else { - if (FAULT_ACTIVE(mdev, DRBD_FAULT_BM_ALLOC)) + if (drbd_insert_fault(mdev, DRBD_FAULT_BM_ALLOC)) npages = NULL; else npages = bm_realloc_pages(b, want); @@ -768,7 +768,7 @@ static void bm_page_io_async(struct drbd_conf *mdev, struct drbd_bitmap *b, int bio->bi_private = b; bio->bi_end_io = bm_async_io_complete; - if (FAULT_ACTIVE(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD)) { + if (drbd_insert_fault(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD)) { bio->bi_rw |= rw; bio_endio(bio, -EIO); } else { diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 7514cf7a958c..c81710a42111 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -137,20 +137,19 @@ enum { DRBD_FAULT_MAX, }; -#ifdef CONFIG_DRBD_FAULT_INJECTION extern unsigned int _drbd_insert_fault(struct drbd_conf *mdev, unsigned int type); + static inline int drbd_insert_fault(struct drbd_conf *mdev, unsigned int type) { +#ifdef CONFIG_DRBD_FAULT_INJECTION return fault_rate && (enable_faults & (1<<type)) && _drbd_insert_fault(mdev, type); -} -#define FAULT_ACTIVE(_m, _t) (drbd_insert_fault((_m), (_t))) - #else -#define FAULT_ACTIVE(_m, _t) (0) + return 0; #endif +} /* integer division, round _UP_ to the next integer */ #define div_ceil(A, B) ((A)/(B) + ((A)%(B) ? 1 : 0)) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 55fee1a6c647..d34d093278c7 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -319,7 +319,7 @@ struct drbd_epoch_entry *drbd_alloc_ee(struct drbd_conf *mdev, struct page *page; unsigned nr_pages = (data_size + PAGE_SIZE -1) >> PAGE_SHIFT; - if (FAULT_ACTIVE(mdev, DRBD_FAULT_AL_EE)) + if (drbd_insert_fault(mdev, DRBD_FAULT_AL_EE)) return NULL; e = mempool_alloc(drbd_ee_mempool, gfp_mask & ~__GFP_HIGHMEM); @@ -1264,7 +1264,7 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __ unsigned len = min_t(int, ds, PAGE_SIZE); data = kmap(page); rr = drbd_recv(mdev, data, len); - if (FAULT_ACTIVE(mdev, DRBD_FAULT_RECEIVE)) { + if (drbd_insert_fault(mdev, DRBD_FAULT_RECEIVE)) { dev_err(DEV, "Fault injection: Corrupting data on receive\n"); data[0] = data[0] ^ (unsigned long)-1; } diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 079213d93490..53e7cc506456 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1020,9 +1020,9 @@ allocate_barrier: * stable storage, and this is a WRITE, we may not even submit * this bio. */ if (get_ldev(mdev)) { - if (FAULT_ACTIVE(mdev, rw == WRITE ? DRBD_FAULT_DT_WR - : rw == READ ? DRBD_FAULT_DT_RD - : DRBD_FAULT_DT_RA)) + if (drbd_insert_fault(mdev, rw == WRITE ? DRBD_FAULT_DT_WR + : rw == READ ? DRBD_FAULT_DT_RD + : DRBD_FAULT_DT_RA)) bio_endio(req->private_bio, -EIO); else generic_make_request(req->private_bio); diff --git a/drivers/block/drbd/drbd_wrappers.h b/drivers/block/drbd/drbd_wrappers.h index 53586fa5ae1b..151f1a37478f 100644 --- a/drivers/block/drbd/drbd_wrappers.h +++ b/drivers/block/drbd/drbd_wrappers.h @@ -39,7 +39,7 @@ static inline void drbd_generic_make_request(struct drbd_conf *mdev, return; } - if (FAULT_ACTIVE(mdev, fault_type)) + if (drbd_insert_fault(mdev, fault_type)) bio_endio(bio, -EIO); else generic_make_request(bio); -- cgit v1.2.3 From 116676ca621a862a8124969772f4dd61c8b40eee Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Wed, 8 Dec 2010 13:33:11 +0100 Subject: drbd: Rename enum drbd_ret_codes to enum drbd_ret_code Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 2 +- drivers/block/drbd/drbd_nl.c | 4 ++-- include/linux/drbd.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index f43e2aa354a6..8d69e3a1b3c2 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -3570,7 +3570,7 @@ void drbd_md_sync(struct drbd_conf *mdev) * @mdev: DRBD device. * @bdev: Device from which the meta data should be read in. * - * Return 0 (NO_ERROR) on success, and an enum drbd_ret_codes in case + * Return 0 (NO_ERROR) on success, and an enum drbd_ret_code in case * something goes wrong. Currently only: ERR_IO_MD_DISK, ERR_MD_INVALID. */ int drbd_md_read(struct drbd_conf *mdev, struct drbd_backing_dev *bdev) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index cd0459f0403f..fe336592e538 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -849,7 +849,7 @@ static void drbd_suspend_al(struct drbd_conf *mdev) static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, struct drbd_nl_cfg_reply *reply) { - enum drbd_ret_codes retcode; + enum drbd_ret_code retcode; enum determine_dev_size dd; sector_t max_possible_sectors; sector_t min_md_device_sectors; @@ -1278,7 +1278,7 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, struct drbd_nl_cfg_reply *reply) { int i, ns; - enum drbd_ret_codes retcode; + enum drbd_ret_code retcode; struct net_conf *new_conf = NULL; struct crypto_hash *tfm = NULL; struct crypto_hash *integrity_w_tfm = NULL; diff --git a/include/linux/drbd.h b/include/linux/drbd.h index 41da654cc0b1..d92f989036c9 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -103,7 +103,7 @@ enum drbd_on_congestion { }; /* KEEP the order, do not delete or insert. Only append. */ -enum drbd_ret_codes { +enum drbd_ret_code { ERR_CODE_BASE = 100, NO_ERROR = 101, ERR_LOCAL_ADDR = 102, -- cgit v1.2.3 From c8b325632f0e5ffdaeca3d1f3be77c9399316a40 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Wed, 8 Dec 2010 01:06:16 +0100 Subject: drbd: Rename enum drbd_state_ret_codes to enum drbd_state_rv Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 5 +++-- drivers/block/drbd/drbd_strings.c | 2 +- include/linux/drbd.h | 4 ++-- 3 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 8d69e3a1b3c2..cddf311b7429 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -510,8 +510,9 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state int drbd_send_state_req(struct drbd_conf *, union drbd_state, union drbd_state); -static enum drbd_state_ret_codes _req_st_cond(struct drbd_conf *mdev, - union drbd_state mask, union drbd_state val) +static enum drbd_state_rv +_req_st_cond(struct drbd_conf *mdev, union drbd_state mask, + union drbd_state val) { union drbd_state os, ns; unsigned long flags; diff --git a/drivers/block/drbd/drbd_strings.c b/drivers/block/drbd/drbd_strings.c index 5b970adc3b6f..c44a2a602772 100644 --- a/drivers/block/drbd/drbd_strings.c +++ b/drivers/block/drbd/drbd_strings.c @@ -107,7 +107,7 @@ const char *drbd_disk_str(enum drbd_disk_state s) return s > D_UP_TO_DATE ? "TOO_LARGE" : drbd_disk_s_names[s]; } -const char *drbd_set_st_err_str(enum drbd_state_ret_codes err) +const char *drbd_set_st_err_str(enum drbd_state_rv err) { return err <= SS_AFTER_LAST_ERROR ? "TOO_SMALL" : err > SS_TWO_PRIMARIES ? "TOO_LARGE" diff --git a/include/linux/drbd.h b/include/linux/drbd.h index d92f989036c9..d10431fab004 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -270,7 +270,7 @@ union drbd_state { unsigned int i; }; -enum drbd_state_ret_codes { +enum drbd_state_rv { SS_CW_NO_NEED = 4, SS_CW_SUCCESS = 3, SS_NOTHING_TO_DO = 2, @@ -301,7 +301,7 @@ enum drbd_state_ret_codes { extern const char *drbd_conn_str(enum drbd_conns); extern const char *drbd_role_str(enum drbd_role); extern const char *drbd_disk_str(enum drbd_disk_state); -extern const char *drbd_set_st_err_str(enum drbd_state_ret_codes); +extern const char *drbd_set_st_err_str(enum drbd_state_rv); #define SHARED_SECRET_MAX 64 -- cgit v1.2.3 From bf885f8a6772fb48409dd505a09d974a5e621f22 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Wed, 8 Dec 2010 00:39:32 +0100 Subject: drbd: Be more explicit about functions that return an enum drbd_state_rv Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 32 ++++++++++++--------- drivers/block/drbd/drbd_main.c | 59 +++++++++++++++++++++----------------- drivers/block/drbd/drbd_nl.c | 29 ++++++++++--------- drivers/block/drbd/drbd_receiver.c | 2 +- 4 files changed, 67 insertions(+), 55 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index c81710a42111..749607a494e6 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1174,14 +1174,19 @@ enum dds_flags { }; extern void drbd_init_set_defaults(struct drbd_conf *mdev); -extern int drbd_change_state(struct drbd_conf *mdev, enum chg_state_flags f, - union drbd_state mask, union drbd_state val); +extern enum drbd_state_rv drbd_change_state(struct drbd_conf *mdev, + enum chg_state_flags f, + union drbd_state mask, + union drbd_state val); extern void drbd_force_state(struct drbd_conf *, union drbd_state, union drbd_state); -extern int _drbd_request_state(struct drbd_conf *, union drbd_state, - union drbd_state, enum chg_state_flags); -extern int __drbd_set_state(struct drbd_conf *, union drbd_state, - enum chg_state_flags, struct completion *done); +extern enum drbd_state_rv _drbd_request_state(struct drbd_conf *, + union drbd_state, + union drbd_state, + enum chg_state_flags); +extern enum drbd_state_rv __drbd_set_state(struct drbd_conf *, union drbd_state, + enum chg_state_flags, + struct completion *done); extern void print_st_err(struct drbd_conf *, union drbd_state, union drbd_state, int); extern int drbd_thread_start(struct drbd_thread *thi); @@ -1245,7 +1250,7 @@ extern int drbd_send_ov_request(struct drbd_conf *mdev,sector_t sector,int size) extern int drbd_send_bitmap(struct drbd_conf *mdev); extern int _drbd_send_bitmap(struct drbd_conf *mdev); -extern int drbd_send_sr_reply(struct drbd_conf *mdev, int retcode); +extern int drbd_send_sr_reply(struct drbd_conf *mdev, enum drbd_state_rv retcode); extern void drbd_free_bc(struct drbd_backing_dev *ldev); extern void drbd_mdev_cleanup(struct drbd_conf *mdev); @@ -1493,8 +1498,9 @@ enum determine_dev_size { dev_size_error = -1, unchanged = 0, shrunk = 1, grew = extern enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *, enum dds_flags) __must_hold(local); extern void resync_after_online_grow(struct drbd_conf *); extern void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int) __must_hold(local); -extern int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, - int force); +extern enum drbd_state_rv drbd_set_role(struct drbd_conf *mdev, + enum drbd_role new_role, + int force); extern enum drbd_disk_state drbd_try_outdate_peer(struct drbd_conf *mdev); extern void drbd_try_outdate_peer_async(struct drbd_conf *mdev); extern int drbd_khelper(struct drbd_conf *mdev, char *cmd); @@ -1761,11 +1767,11 @@ static inline void drbd_state_unlock(struct drbd_conf *mdev) wake_up(&mdev->misc_wait); } -static inline int _drbd_set_state(struct drbd_conf *mdev, - union drbd_state ns, enum chg_state_flags flags, - struct completion *done) +static inline enum drbd_state_rv +_drbd_set_state(struct drbd_conf *mdev, union drbd_state ns, + enum chg_state_flags flags, struct completion *done) { - int rv; + enum drbd_state_rv rv; read_lock(&global_state_lock); rv = __drbd_set_state(mdev, ns, flags, done); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index cddf311b7429..a101dceb2d49 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -473,12 +473,13 @@ static int cl_wide_st_chg(struct drbd_conf *mdev, (os.conn == C_CONNECTED && ns.conn == C_VERIFY_S); } -int drbd_change_state(struct drbd_conf *mdev, enum chg_state_flags f, - union drbd_state mask, union drbd_state val) +enum drbd_state_rv +drbd_change_state(struct drbd_conf *mdev, enum chg_state_flags f, + union drbd_state mask, union drbd_state val) { unsigned long flags; union drbd_state os, ns; - int rv; + enum drbd_state_rv rv; spin_lock_irqsave(&mdev->req_lock, flags); os = mdev->state; @@ -502,9 +503,10 @@ void drbd_force_state(struct drbd_conf *mdev, drbd_change_state(mdev, CS_HARD, mask, val); } -static int is_valid_state(struct drbd_conf *mdev, union drbd_state ns); -static int is_valid_state_transition(struct drbd_conf *, - union drbd_state, union drbd_state); +static enum drbd_state_rv is_valid_state(struct drbd_conf *, union drbd_state); +static enum drbd_state_rv is_valid_state_transition(struct drbd_conf *, + union drbd_state, + union drbd_state); static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state os, union drbd_state ns, const char **warn_sync_abort); int drbd_send_state_req(struct drbd_conf *, @@ -516,7 +518,7 @@ _req_st_cond(struct drbd_conf *mdev, union drbd_state mask, { union drbd_state os, ns; unsigned long flags; - int rv; + enum drbd_state_rv rv; if (test_and_clear_bit(CL_ST_CHG_SUCCESS, &mdev->flags)) return SS_CW_SUCCESS; @@ -537,7 +539,7 @@ _req_st_cond(struct drbd_conf *mdev, union drbd_state mask, if (rv == SS_SUCCESS) { rv = is_valid_state_transition(mdev, ns, os); if (rv == SS_SUCCESS) - rv = 0; /* cont waiting, otherwise fail. */ + rv = SS_UNKNOWN_ERROR; /* cont waiting, otherwise fail. */ } } spin_unlock_irqrestore(&mdev->req_lock, flags); @@ -555,14 +557,14 @@ _req_st_cond(struct drbd_conf *mdev, union drbd_state mask, * Should not be called directly, use drbd_request_state() or * _drbd_request_state(). */ -static int drbd_req_state(struct drbd_conf *mdev, - union drbd_state mask, union drbd_state val, - enum chg_state_flags f) +static enum drbd_state_rv +drbd_req_state(struct drbd_conf *mdev, union drbd_state mask, + union drbd_state val, enum chg_state_flags f) { struct completion done; unsigned long flags; union drbd_state os, ns; - int rv; + enum drbd_state_rv rv; init_completion(&done); @@ -637,10 +639,11 @@ abort: * Cousin of drbd_request_state(), useful with the CS_WAIT_COMPLETE * flag, or when logging of failed state change requests is not desired. */ -int _drbd_request_state(struct drbd_conf *mdev, union drbd_state mask, - union drbd_state val, enum chg_state_flags f) +enum drbd_state_rv +_drbd_request_state(struct drbd_conf *mdev, union drbd_state mask, + union drbd_state val, enum chg_state_flags f) { - int rv; + enum drbd_state_rv rv; wait_event(mdev->state_wait, (rv = drbd_req_state(mdev, mask, val, f)) != SS_IN_TRANSIENT_STATE); @@ -664,8 +667,8 @@ static void print_st(struct drbd_conf *mdev, char *name, union drbd_state ns) ); } -void print_st_err(struct drbd_conf *mdev, - union drbd_state os, union drbd_state ns, int err) +void print_st_err(struct drbd_conf *mdev, union drbd_state os, + union drbd_state ns, enum drbd_state_rv err) { if (err == SS_IN_TRANSIENT_STATE) return; @@ -680,12 +683,13 @@ void print_st_err(struct drbd_conf *mdev, * @mdev: DRBD device. * @ns: State to consider. */ -static int is_valid_state(struct drbd_conf *mdev, union drbd_state ns) +static enum drbd_state_rv +is_valid_state(struct drbd_conf *mdev, union drbd_state ns) { /* See drbd_state_sw_errors in drbd_strings.c */ enum drbd_fencing_p fp; - int rv = SS_SUCCESS; + enum drbd_state_rv rv = SS_SUCCESS; fp = FP_DONT_CARE; if (get_ldev(mdev)) { @@ -748,10 +752,11 @@ static int is_valid_state(struct drbd_conf *mdev, union drbd_state ns) * @ns: new state. * @os: old state. */ -static int is_valid_state_transition(struct drbd_conf *mdev, - union drbd_state ns, union drbd_state os) +static enum drbd_state_rv +is_valid_state_transition(struct drbd_conf *mdev, union drbd_state ns, + union drbd_state os) { - int rv = SS_SUCCESS; + enum drbd_state_rv rv = SS_SUCCESS; if ((ns.conn == C_STARTING_SYNC_T || ns.conn == C_STARTING_SYNC_S) && os.conn > C_CONNECTED) @@ -1029,12 +1034,12 @@ static void drbd_resume_al(struct drbd_conf *mdev) * * Caller needs to hold req_lock, and global_state_lock. Do not call directly. */ -int __drbd_set_state(struct drbd_conf *mdev, - union drbd_state ns, enum chg_state_flags flags, - struct completion *done) +enum drbd_state_rv +__drbd_set_state(struct drbd_conf *mdev, union drbd_state ns, + enum chg_state_flags flags, struct completion *done) { union drbd_state os; - int rv = SS_SUCCESS; + enum drbd_state_rv rv = SS_SUCCESS; const char *warn_sync_abort = NULL; struct after_state_chg_work *ascw; @@ -2031,7 +2036,7 @@ int drbd_send_state_req(struct drbd_conf *mdev, (struct p_header80 *)&p, sizeof(p)); } -int drbd_send_sr_reply(struct drbd_conf *mdev, int retcode) +int drbd_send_sr_reply(struct drbd_conf *mdev, enum drbd_state_rv retcode) { struct p_req_state_reply p; diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index fe336592e538..7a2faf6d48e2 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -288,10 +288,11 @@ void drbd_try_outdate_peer_async(struct drbd_conf *mdev) dev_err(DEV, "out of mem, failed to invoke fence-peer helper\n"); } -int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) +enum drbd_state_rv +drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) { const int max_tries = 4; - int r = 0; + enum drbd_state_rv rv = SS_UNKNOWN_ERROR; int try = 0; int forced = 0; union drbd_state mask, val; @@ -306,17 +307,17 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) val.i = 0; val.role = new_role; while (try++ < max_tries) { - r = _drbd_request_state(mdev, mask, val, CS_WAIT_COMPLETE); + rv = _drbd_request_state(mdev, mask, val, CS_WAIT_COMPLETE); /* in case we first succeeded to outdate, * but now suddenly could establish a connection */ - if (r == SS_CW_FAILED_BY_PEER && mask.pdsk != 0) { + if (rv == SS_CW_FAILED_BY_PEER && mask.pdsk != 0) { val.pdsk = 0; mask.pdsk = 0; continue; } - if (r == SS_NO_UP_TO_DATE_DISK && force && + if (rv == SS_NO_UP_TO_DATE_DISK && force && (mdev->state.disk < D_UP_TO_DATE && mdev->state.disk >= D_INCONSISTENT)) { mask.disk = D_MASK; @@ -325,7 +326,7 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) continue; } - if (r == SS_NO_UP_TO_DATE_DISK && + if (rv == SS_NO_UP_TO_DATE_DISK && mdev->state.disk == D_CONSISTENT && mask.pdsk == 0) { D_ASSERT(mdev->state.pdsk == D_UNKNOWN); nps = drbd_try_outdate_peer(mdev); @@ -341,9 +342,9 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) continue; } - if (r == SS_NOTHING_TO_DO) + if (rv == SS_NOTHING_TO_DO) goto fail; - if (r == SS_PRIMARY_NOP && mask.pdsk == 0) { + if (rv == SS_PRIMARY_NOP && mask.pdsk == 0) { nps = drbd_try_outdate_peer(mdev); if (force && nps > D_OUTDATED) { @@ -356,7 +357,7 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) continue; } - if (r == SS_TWO_PRIMARIES) { + if (rv == SS_TWO_PRIMARIES) { /* Maybe the peer is detected as dead very soon... retry at most once more in this case. */ __set_current_state(TASK_INTERRUPTIBLE); @@ -365,16 +366,16 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) try = max_tries - 1; continue; } - if (r < SS_SUCCESS) { - r = _drbd_request_state(mdev, mask, val, + if (rv < SS_SUCCESS) { + rv = _drbd_request_state(mdev, mask, val, CS_VERBOSE + CS_WAIT_COMPLETE); - if (r < SS_SUCCESS) + if (rv < SS_SUCCESS) goto fail; } break; } - if (r < SS_SUCCESS) + if (rv < SS_SUCCESS) goto fail; if (forced) @@ -423,7 +424,7 @@ int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) kobject_uevent(&disk_to_dev(mdev->vdisk)->kobj, KOBJ_CHANGE); fail: mutex_unlock(&mdev->state_mutex); - return r; + return rv; } static struct drbd_conf *ensure_mdev(int minor, int create) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index d34d093278c7..c116cbdc9dca 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3112,7 +3112,7 @@ static int receive_req_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsi { struct p_req_state *p = &mdev->data.rbuf.req_state; union drbd_state mask, val; - int rv; + enum drbd_state_rv rv; mask.i = be32_to_cpu(p->mask); val.i = be32_to_cpu(p->val); -- cgit v1.2.3 From bb4379464efeb4624757e2cc0bf9207a309c1075 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Thu, 9 Dec 2010 14:02:35 +0100 Subject: drbd: Another small enum drbd_state_rv cleanup Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index c116cbdc9dca..8088744d0ec1 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -2209,12 +2209,14 @@ static int drbd_asb_recover_1p(struct drbd_conf *mdev) __must_hold(local) case ASB_CALL_HELPER: hg = drbd_asb_recover_0p(mdev); if (hg == -1 && mdev->state.role == R_PRIMARY) { - self = drbd_set_role(mdev, R_SECONDARY, 0); + enum drbd_state_rv rv2; + + drbd_set_role(mdev, R_SECONDARY, 0); /* drbd_change_state() does not sleep while in SS_IN_TRANSIENT_STATE, * we might be here in C_WF_REPORT_PARAMS which is transient. * we do not need to wait for the after state change work either. */ - self = drbd_change_state(mdev, CS_VERBOSE, NS(role, R_SECONDARY)); - if (self != SS_SUCCESS) { + rv2 = drbd_change_state(mdev, CS_VERBOSE, NS(role, R_SECONDARY)); + if (rv2 != SS_SUCCESS) { drbd_khelper(mdev, "pri-lost-after-sb"); } else { dev_warn(DEV, "Successfully gave up primary role.\n"); @@ -2252,11 +2254,13 @@ static int drbd_asb_recover_2p(struct drbd_conf *mdev) __must_hold(local) case ASB_CALL_HELPER: hg = drbd_asb_recover_0p(mdev); if (hg == -1) { + enum drbd_state_rv rv2; + /* drbd_change_state() does not sleep while in SS_IN_TRANSIENT_STATE, * we might be here in C_WF_REPORT_PARAMS which is transient. * we do not need to wait for the after state change work either. */ - self = drbd_change_state(mdev, CS_VERBOSE, NS(role, R_SECONDARY)); - if (self != SS_SUCCESS) { + rv2 = drbd_change_state(mdev, CS_VERBOSE, NS(role, R_SECONDARY)); + if (rv2 != SS_SUCCESS) { drbd_khelper(mdev, "pri-lost-after-sb"); } else { dev_warn(DEV, "Successfully gave up primary role.\n"); -- cgit v1.2.3 From 6184ea2145609b4ad63b141bf1f8124135ff4949 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Thu, 9 Dec 2010 14:23:27 +0100 Subject: drbd: This code is dead now Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 8088744d0ec1..00dcb1172ca8 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -2179,10 +2179,7 @@ static int drbd_asb_recover_0p(struct drbd_conf *mdev) __must_hold(local) static int drbd_asb_recover_1p(struct drbd_conf *mdev) __must_hold(local) { - int self, peer, hg, rv = -100; - - self = mdev->ldev->md.uuid[UI_BITMAP] & 1; - peer = mdev->p_uuid[UI_BITMAP] & 1; + int hg, rv = -100; switch (mdev->net_conf->after_sb_1p) { case ASB_DISCARD_YOUNGER_PRI: @@ -2231,10 +2228,7 @@ static int drbd_asb_recover_1p(struct drbd_conf *mdev) __must_hold(local) static int drbd_asb_recover_2p(struct drbd_conf *mdev) __must_hold(local) { - int self, peer, hg, rv = -100; - - self = mdev->ldev->md.uuid[UI_BITMAP] & 1; - peer = mdev->p_uuid[UI_BITMAP] & 1; + int hg, rv = -100; switch (mdev->net_conf->after_sb_2p) { case ASB_DISCARD_YOUNGER_PRI: -- cgit v1.2.3 From 81e84650c200de0695372461964dd960365696db Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Thu, 9 Dec 2010 15:03:57 +0100 Subject: drbd: Use the standard bool, true, and false keywords Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 8 +-- drivers/block/drbd/drbd_bitmap.c | 4 +- drivers/block/drbd/drbd_int.h | 13 +--- drivers/block/drbd/drbd_main.c | 30 ++++----- drivers/block/drbd/drbd_nl.c | 4 +- drivers/block/drbd/drbd_receiver.c | 128 ++++++++++++++++++------------------- drivers/block/drbd/drbd_req.c | 4 +- drivers/block/drbd/drbd_worker.c | 4 +- 8 files changed, 94 insertions(+), 101 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index 2e8a95ce79b1..e3f0f4d31d75 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -338,7 +338,7 @@ w_al_write_transaction(struct drbd_conf *mdev, struct drbd_work *w, int unused) + mdev->ldev->md.al_offset + mdev->al_tr_pos; if (!drbd_md_sync_page_io(mdev, mdev->ldev, sector, WRITE)) - drbd_chk_io_error(mdev, 1, TRUE); + drbd_chk_io_error(mdev, 1, true); if (++mdev->al_tr_pos > div_ceil(mdev->act_log->nr_elements, AL_EXTENTS_PT)) @@ -528,7 +528,7 @@ static void atodb_endio(struct bio *bio, int error) if (!error && !uptodate) error = -EIO; - drbd_chk_io_error(mdev, error, TRUE); + drbd_chk_io_error(mdev, error, true); if (error && wc->error == 0) wc->error = error; @@ -991,7 +991,7 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size, if (count && get_ldev(mdev)) { drbd_advance_rs_marks(mdev, drbd_bm_total_weight(mdev)); spin_lock_irqsave(&mdev->al_lock, flags); - drbd_try_clear_on_disk_bm(mdev, sector, count, TRUE); + drbd_try_clear_on_disk_bm(mdev, sector, count, true); spin_unlock_irqrestore(&mdev->al_lock, flags); /* just wake_up unconditional now, various lc_chaged(), @@ -1441,7 +1441,7 @@ void drbd_rs_failed_io(struct drbd_conf *mdev, sector_t sector, int size) mdev->rs_failed += count; if (get_ldev(mdev)) { - drbd_try_clear_on_disk_bm(mdev, sector, count, FALSE); + drbd_try_clear_on_disk_bm(mdev, sector, count, false); put_ldev(mdev); } diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 5dafbabe9617..9390e9526786 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -844,7 +844,7 @@ static int bm_rw(struct drbd_conf *mdev, int rw) __must_hold(local) if (test_bit(BM_MD_IO_ERROR, &b->bm_flags)) { dev_alert(DEV, "we had at least one MD IO ERROR during bitmap IO\n"); - drbd_chk_io_error(mdev, 1, TRUE); + drbd_chk_io_error(mdev, 1, true); err = -EIO; } @@ -916,7 +916,7 @@ int drbd_bm_write_sect(struct drbd_conf *mdev, unsigned long enr) __must_hold(lo dev_err(DEV, "IO ERROR writing bitmap sector %lu " "(meta-disk sector %llus)\n", enr, (unsigned long long)on_disk_sector); - drbd_chk_io_error(mdev, 1, TRUE); + drbd_chk_io_error(mdev, 1, true); for (i = 0; i < AL_EXT_PER_BM_SECT; i++) drbd_bm_ALe_set_all(mdev, enr*AL_EXT_PER_BM_SECT+i); } diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 749607a494e6..0855934e19d0 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -72,13 +72,6 @@ extern int fault_devs; extern char usermode_helper[]; -#ifndef TRUE -#define TRUE 1 -#endif -#ifndef FALSE -#define FALSE 0 -#endif - /* I don't remember why XCPU ... * This is used to wake the asender, * and to interrupt sending the sending task @@ -2002,17 +1995,17 @@ static inline int drbd_send_ping_ack(struct drbd_conf *mdev) static inline void drbd_thread_stop(struct drbd_thread *thi) { - _drbd_thread_stop(thi, FALSE, TRUE); + _drbd_thread_stop(thi, false, true); } static inline void drbd_thread_stop_nowait(struct drbd_thread *thi) { - _drbd_thread_stop(thi, FALSE, FALSE); + _drbd_thread_stop(thi, false, false); } static inline void drbd_thread_restart_nowait(struct drbd_thread *thi) { - _drbd_thread_stop(thi, TRUE, FALSE); + _drbd_thread_stop(thi, true, false); } /* counts how many answer packets packets we expect from our peer, diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index a101dceb2d49..7eb447d20cce 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -456,7 +456,7 @@ void tl_restart(struct drbd_conf *mdev, enum drbd_req_event what) } /** - * cl_wide_st_chg() - TRUE if the state change is a cluster wide one + * cl_wide_st_chg() - true if the state change is a cluster wide one * @mdev: DRBD device. * @os: old (current) state. * @ns: new (wanted) state. @@ -1623,7 +1623,7 @@ int drbd_thread_start(struct drbd_thread *thi) if (!try_module_get(THIS_MODULE)) { dev_err(DEV, "Failed to get module reference in drbd_thread_start\n"); spin_unlock_irqrestore(&thi->t_lock, flags); - return FALSE; + return false; } init_completion(&thi->stop); @@ -1640,7 +1640,7 @@ int drbd_thread_start(struct drbd_thread *thi) dev_err(DEV, "Couldn't start thread\n"); module_put(THIS_MODULE); - return FALSE; + return false; } spin_lock_irqsave(&thi->t_lock, flags); thi->task = nt; @@ -1660,7 +1660,7 @@ int drbd_thread_start(struct drbd_thread *thi) break; } - return TRUE; + return true; } @@ -1758,8 +1758,8 @@ int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock, { int sent, ok; - ERR_IF(!h) return FALSE; - ERR_IF(!size) return FALSE; + ERR_IF(!h) return false; + ERR_IF(!size) return false; h->magic = BE_DRBD_MAGIC; h->command = cpu_to_be16(cmd); @@ -2196,14 +2196,14 @@ int _drbd_send_bitmap(struct drbd_conf *mdev) struct p_header80 *p; int ret; - ERR_IF(!mdev->bitmap) return FALSE; + ERR_IF(!mdev->bitmap) return false; /* maybe we should use some per thread scratch page, * and allocate that during initial device creation? */ p = (struct p_header80 *) __get_free_page(GFP_NOIO); if (!p) { dev_err(DEV, "failed to allocate one page buffer in %s\n", __func__); - return FALSE; + return false; } if (get_ldev(mdev)) { @@ -2256,7 +2256,7 @@ int drbd_send_b_ack(struct drbd_conf *mdev, u32 barrier_nr, u32 set_size) p.set_size = cpu_to_be32(set_size); if (mdev->state.conn < C_CONNECTED) - return FALSE; + return false; ok = drbd_send_cmd(mdev, USE_META_SOCKET, P_BARRIER_ACK, (struct p_header80 *)&p, sizeof(p)); return ok; @@ -2284,7 +2284,7 @@ static int _drbd_send_ack(struct drbd_conf *mdev, enum drbd_packets cmd, p.seq_num = cpu_to_be32(atomic_add_return(1, &mdev->packet_seq)); if (!mdev->meta.socket || mdev->state.conn < C_CONNECTED) - return FALSE; + return false; ok = drbd_send_cmd(mdev, USE_META_SOCKET, cmd, (struct p_header80 *)&p, sizeof(p)); return ok; @@ -2390,8 +2390,8 @@ int drbd_send_ov_request(struct drbd_conf *mdev, sector_t sector, int size) } /* called on sndtimeo - * returns FALSE if we should retry, - * TRUE if we think connection is dead + * returns false if we should retry, + * true if we think connection is dead */ static int we_should_drop_the_connection(struct drbd_conf *mdev, struct socket *sock) { @@ -2404,7 +2404,7 @@ static int we_should_drop_the_connection(struct drbd_conf *mdev, struct socket * || mdev->state.conn < C_CONNECTED; if (drop_it) - return TRUE; + return true; drop_it = !--mdev->ko_count; if (!drop_it) { @@ -3283,7 +3283,7 @@ struct drbd_conf *drbd_new_device(unsigned int minor) goto out_no_disk; mdev->vdisk = disk; - set_disk_ro(disk, TRUE); + set_disk_ro(disk, true); disk->queue = q; disk->major = DRBD_MAJOR; @@ -3560,7 +3560,7 @@ void drbd_md_sync(struct drbd_conf *mdev) if (!drbd_md_sync_page_io(mdev, mdev->ldev, sector, WRITE)) { /* this was a try anyways ... */ dev_err(DEV, "meta data update failed!\n"); - drbd_chk_io_error(mdev, 1, TRUE); + drbd_chk_io_error(mdev, 1, true); } /* Update mdev->ldev->md.la_size_sect, diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 7a2faf6d48e2..9e94c348c42c 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -385,7 +385,7 @@ drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) wait_event(mdev->misc_wait, atomic_read(&mdev->ap_pending_cnt) == 0); if (new_role == R_SECONDARY) { - set_disk_ro(mdev->vdisk, TRUE); + set_disk_ro(mdev->vdisk, true); if (get_ldev(mdev)) { mdev->ldev->md.uuid[UI_CURRENT] &= ~(u64)1; put_ldev(mdev); @@ -395,7 +395,7 @@ drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) mdev->net_conf->want_lose = 0; put_net_conf(mdev); } - set_disk_ro(mdev->vdisk, FALSE); + set_disk_ro(mdev->vdisk, false); if (get_ldev(mdev)) { if (((mdev->state.conn < C_CONNECTED || mdev->state.pdsk <= D_FAILED) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 00dcb1172ca8..732aacb46a32 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -725,16 +725,16 @@ static int drbd_socket_okay(struct drbd_conf *mdev, struct socket **sock) char tb[4]; if (!*sock) - return FALSE; + return false; rr = drbd_recv_short(mdev, *sock, tb, 4, MSG_DONTWAIT | MSG_PEEK); if (rr > 0 || rr == -EAGAIN) { - return TRUE; + return true; } else { sock_release(*sock); *sock = NULL; - return FALSE; + return false; } } @@ -933,7 +933,7 @@ static int drbd_recv_header(struct drbd_conf *mdev, enum drbd_packets *cmd, unsi r = drbd_recv(mdev, h, sizeof(*h)); if (unlikely(r != sizeof(*h))) { dev_err(DEV, "short read expecting header on sock: r=%d\n", r); - return FALSE; + return false; } if (likely(h->h80.magic == BE_DRBD_MAGIC)) { @@ -947,11 +947,11 @@ static int drbd_recv_header(struct drbd_conf *mdev, enum drbd_packets *cmd, unsi be32_to_cpu(h->h80.magic), be16_to_cpu(h->h80.command), be16_to_cpu(h->h80.length)); - return FALSE; + return false; } mdev->last_received = jiffies; - return TRUE; + return true; } static void drbd_flush(struct drbd_conf *mdev) @@ -1160,7 +1160,7 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign switch (mdev->write_ordering) { case WO_none: if (rv == FE_RECYCLED) - return TRUE; + return true; /* receiver context, in the writeout path of the other node. * avoid potential distributed deadlock */ @@ -1188,10 +1188,10 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign D_ASSERT(atomic_read(&epoch->active) == 0); D_ASSERT(epoch->flags == 0); - return TRUE; + return true; default: dev_err(DEV, "Strangeness in mdev->write_ordering %d\n", mdev->write_ordering); - return FALSE; + return false; } epoch->flags = 0; @@ -1209,7 +1209,7 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign } spin_unlock(&mdev->epoch_lock); - return TRUE; + return true; } /* used from receive_RSDataReply (recv_resync_read) @@ -1303,7 +1303,7 @@ static int drbd_drain_block(struct drbd_conf *mdev, int data_size) void *data; if (!data_size) - return TRUE; + return true; page = drbd_pp_alloc(mdev, 1, 1); @@ -1426,7 +1426,7 @@ static int recv_resync_read(struct drbd_conf *mdev, sector_t sector, int data_si atomic_add(data_size >> 9, &mdev->rs_sect_ev); if (drbd_submit_ee(mdev, e, WRITE, DRBD_FAULT_RS_WR) == 0) - return TRUE; + return true; /* drbd_submit_ee currently fails for one reason only: * not being able to allocate enough bios. @@ -1438,7 +1438,7 @@ static int recv_resync_read(struct drbd_conf *mdev, sector_t sector, int data_si drbd_free_ee(mdev, e); fail: put_ldev(mdev); - return FALSE; + return false; } static int receive_DataReply(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size) @@ -1455,7 +1455,7 @@ static int receive_DataReply(struct drbd_conf *mdev, enum drbd_packets cmd, unsi spin_unlock_irq(&mdev->req_lock); if (unlikely(!req)) { dev_err(DEV, "Got a corrupt block_id/sector pair(1).\n"); - return FALSE; + return false; } /* hlist_del(&req->colision) is done in _req_may_be_done, to avoid @@ -1655,7 +1655,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned e = read_in_block(mdev, p->block_id, sector, data_size); if (!e) { put_ldev(mdev); - return FALSE; + return false; } e->w.cb = e_end_block; @@ -1774,7 +1774,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned put_ldev(mdev); wake_asender(mdev); finish_wait(&mdev->misc_wait, &wait); - return TRUE; + return true; } if (signal_pending(current)) { @@ -1830,7 +1830,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned } if (drbd_submit_ee(mdev, e, rw, DRBD_FAULT_DT_WR) == 0) - return TRUE; + return true; /* drbd_submit_ee currently fails for one reason only: * not being able to allocate enough bios. @@ -1848,7 +1848,7 @@ out_interrupted: * receive a barrier... atomic_inc(&mdev->epoch_size); */ put_ldev(mdev); drbd_free_ee(mdev, e); - return FALSE; + return false; } /* We may throttle resync, if the lower device seems to be busy, @@ -1934,12 +1934,12 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) { dev_err(DEV, "%s:%d: sector: %llus, size: %u\n", __FILE__, __LINE__, (unsigned long long)sector, size); - return FALSE; + return false; } if (sector + (size>>9) > capacity) { dev_err(DEV, "%s:%d: sector: %llus, size: %u\n", __FILE__, __LINE__, (unsigned long long)sector, size); - return FALSE; + return false; } if (!get_ldev_if_state(mdev, D_UP_TO_DATE)) { @@ -1976,7 +1976,7 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un e = drbd_alloc_ee(mdev, p->block_id, sector, size, GFP_NOIO); if (!e) { put_ldev(mdev); - return FALSE; + return false; } switch (cmd) { @@ -2089,7 +2089,7 @@ submit: spin_unlock_irq(&mdev->req_lock); if (drbd_submit_ee(mdev, e, READ, fault_type) == 0) - return TRUE; + return true; /* drbd_submit_ee currently fails for one reason only: * not being able to allocate enough bios. @@ -2102,7 +2102,7 @@ submit: out_free_e: put_ldev(mdev); drbd_free_ee(mdev, e); - return FALSE; + return false; } static int drbd_asb_recover_0p(struct drbd_conf *mdev) __must_hold(local) @@ -2690,7 +2690,7 @@ static int receive_protocol(struct drbd_conf *mdev, enum drbd_packets cmd, unsig unsigned char *my_alg = mdev->net_conf->integrity_alg; if (drbd_recv(mdev, p_integrity_alg, data_size) != data_size) - return FALSE; + return false; p_integrity_alg[SHARED_SECRET_MAX-1] = 0; if (strcmp(p_integrity_alg, my_alg)) { @@ -2701,11 +2701,11 @@ static int receive_protocol(struct drbd_conf *mdev, enum drbd_packets cmd, unsig my_alg[0] ? my_alg : (unsigned char *)"<not-used>"); } - return TRUE; + return true; disconnect: drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); - return FALSE; + return false; } /* helper function @@ -2737,7 +2737,7 @@ struct crypto_hash *drbd_crypto_alloc_digest_safe(const struct drbd_conf *mdev, static int receive_SyncParam(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int packet_size) { - int ok = TRUE; + int ok = true; struct p_rs_param_95 *p = &mdev->data.rbuf.rs_param_95; unsigned int header_size, data_size, exp_max_sz; struct crypto_hash *verify_tfm = NULL; @@ -2755,7 +2755,7 @@ static int receive_SyncParam(struct drbd_conf *mdev, enum drbd_packets cmd, unsi if (packet_size > exp_max_sz) { dev_err(DEV, "SyncParam packet too long: received %u, expected <= %u bytes\n", packet_size, exp_max_sz); - return FALSE; + return false; } if (apv <= 88) { @@ -2775,7 +2775,7 @@ static int receive_SyncParam(struct drbd_conf *mdev, enum drbd_packets cmd, unsi memset(p->verify_alg, 0, 2 * SHARED_SECRET_MAX); if (drbd_recv(mdev, &p->head.payload, header_size) != header_size) - return FALSE; + return false; mdev->sync_conf.rate = be32_to_cpu(p->rate); @@ -2785,11 +2785,11 @@ static int receive_SyncParam(struct drbd_conf *mdev, enum drbd_packets cmd, unsi dev_err(DEV, "verify-alg too long, " "peer wants %u, accepting only %u byte\n", data_size, SHARED_SECRET_MAX); - return FALSE; + return false; } if (drbd_recv(mdev, p->verify_alg, data_size) != data_size) - return FALSE; + return false; /* we expect NUL terminated string */ /* but just in case someone tries to be evil */ @@ -2883,7 +2883,7 @@ disconnect: /* but free the verify_tfm again, if csums_tfm did not work out */ crypto_free_hash(verify_tfm); drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); - return FALSE; + return false; } static void drbd_setup_order_type(struct drbd_conf *mdev, int peer) @@ -2920,7 +2920,7 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned if (p_size == 0 && mdev->state.disk == D_DISKLESS) { dev_err(DEV, "some backing storage is needed\n"); drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); - return FALSE; + return false; } /* just store the peer's disk size for now. @@ -2957,7 +2957,7 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); mdev->ldev->dc.disk_size = my_usize; put_ldev(mdev); - return FALSE; + return false; } put_ldev(mdev); } @@ -2967,7 +2967,7 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned dd = drbd_determin_dev_size(mdev, ddsf); put_ldev(mdev); if (dd == dev_size_error) - return FALSE; + return false; drbd_md_sync(mdev); } else { /* I am diskless, need to accept the peer's size. */ @@ -3014,7 +3014,7 @@ static int receive_sizes(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned } } - return TRUE; + return true; } static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size) @@ -3038,7 +3038,7 @@ static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned dev_err(DEV, "Can only connect to data with current UUID=%016llX\n", (unsigned long long)mdev->ed_uuid); drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); - return FALSE; + return false; } if (get_ldev(mdev)) { @@ -3073,7 +3073,7 @@ static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned if (mdev->state.conn >= C_CONNECTED && mdev->state.disk < D_INCONSISTENT) drbd_set_ed_uuid(mdev, p_uuid[UI_CURRENT]); - return TRUE; + return true; } /** @@ -3118,7 +3118,7 @@ static int receive_req_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsi if (test_bit(DISCARD_CONCURRENT, &mdev->flags) && test_bit(CLUSTER_ST_CHANGE, &mdev->flags)) { drbd_send_sr_reply(mdev, SS_CONCURRENT_ST_CHG); - return TRUE; + return true; } mask = convert_state(mask); @@ -3129,7 +3129,7 @@ static int receive_req_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsi drbd_send_sr_reply(mdev, rv); drbd_md_sync(mdev); - return TRUE; + return true; } static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size) @@ -3174,7 +3174,7 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned peer_state.conn == C_CONNECTED) { if (drbd_bm_total_weight(mdev) <= mdev->rs_failed) drbd_resync_finished(mdev); - return TRUE; + return true; } } @@ -3227,10 +3227,10 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned real_peer_disk = D_DISKLESS; } else { if (test_and_clear_bit(CONN_DRY_RUN, &mdev->flags)) - return FALSE; + return false; D_ASSERT(os.conn == C_WF_REPORT_PARAMS); drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); - return FALSE; + return false; } } } @@ -3255,7 +3255,7 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned drbd_uuid_new_current(mdev); clear_bit(NEW_CUR_UUID, &mdev->flags); drbd_force_state(mdev, NS2(conn, C_PROTOCOL_ERROR, susp, 0)); - return FALSE; + return false; } rv = _drbd_set_state(mdev, ns, cs_flags, NULL); ns = mdev->state; @@ -3263,7 +3263,7 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned if (rv < SS_SUCCESS) { drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); - return FALSE; + return false; } if (os.conn > C_WF_REPORT_PARAMS) { @@ -3281,7 +3281,7 @@ static int receive_state(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned drbd_md_sync(mdev); /* update connected indicator, la_size, ... */ - return TRUE; + return true; } static int receive_sync_uuid(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size) @@ -3308,7 +3308,7 @@ static int receive_sync_uuid(struct drbd_conf *mdev, enum drbd_packets cmd, unsi } else dev_err(DEV, "Ignoring SyncUUID packet!\n"); - return TRUE; + return true; } enum receive_bitmap_ret { OK, DONE, FAILED }; @@ -3462,7 +3462,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne struct bm_xfer_ctx c; void *buffer; enum receive_bitmap_ret ret; - int ok = FALSE; + int ok = false; struct p_header80 *h = &mdev->data.rbuf.header.h80; /* drbd_bm_lock(mdev, "receive bitmap"); By intention no bm_lock */ @@ -3535,7 +3535,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne drbd_conn_str(mdev->state.conn)); } - ok = TRUE; + ok = true; out: /* drbd_bm_unlock(mdev); by intention no lock */ if (ok && mdev->state.conn == C_WF_BITMAP_S) @@ -3569,7 +3569,7 @@ static int receive_UnplugRemote(struct drbd_conf *mdev, enum drbd_packets cmd, u * with the data requests being unplugged */ drbd_tcp_quickack(mdev->data.socket); - return TRUE; + return true; } static int receive_out_of_sync(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size) @@ -3578,7 +3578,7 @@ static int receive_out_of_sync(struct drbd_conf *mdev, enum drbd_packets cmd, un drbd_set_out_of_sync(mdev, be64_to_cpu(p->sector), be32_to_cpu(p->blksize)); - return TRUE; + return true; } typedef int (*drbd_cmd_handler_f)(struct drbd_conf *, enum drbd_packets cmd, unsigned int to_receive); @@ -4147,7 +4147,7 @@ static int got_RqSReply(struct drbd_conf *mdev, struct p_header80 *h) } wake_up(&mdev->state_wait); - return TRUE; + return true; } static int got_Ping(struct drbd_conf *mdev, struct p_header80 *h) @@ -4163,7 +4163,7 @@ static int got_PingAck(struct drbd_conf *mdev, struct p_header80 *h) if (!test_and_set_bit(GOT_PING_ACK, &mdev->flags)) wake_up(&mdev->misc_wait); - return TRUE; + return true; } static int got_IsInSync(struct drbd_conf *mdev, struct p_header80 *h) @@ -4186,7 +4186,7 @@ static int got_IsInSync(struct drbd_conf *mdev, struct p_header80 *h) dec_rs_pending(mdev); atomic_add(blksize >> 9, &mdev->rs_sect_in); - return TRUE; + return true; } /* when we receive the ACK for a write request, @@ -4230,14 +4230,14 @@ static int validate_req_change_req_state(struct drbd_conf *mdev, if (unlikely(!req)) { spin_unlock_irq(&mdev->req_lock); dev_err(DEV, "%s: got a corrupt block_id/sector pair\n", func); - return FALSE; + return false; } __req_mod(req, what, &m); spin_unlock_irq(&mdev->req_lock); if (m.bio) complete_master_bio(mdev, &m); - return TRUE; + return true; } static int got_BlockAck(struct drbd_conf *mdev, struct p_header80 *h) @@ -4252,7 +4252,7 @@ static int got_BlockAck(struct drbd_conf *mdev, struct p_header80 *h) if (is_syncer_block_id(p->block_id)) { drbd_set_in_sync(mdev, sector, blksize); dec_rs_pending(mdev); - return TRUE; + return true; } switch (be16_to_cpu(h->command)) { case P_RS_WRITE_ACK: @@ -4273,7 +4273,7 @@ static int got_BlockAck(struct drbd_conf *mdev, struct p_header80 *h) break; default: D_ASSERT(0); - return FALSE; + return false; } return validate_req_change_req_state(mdev, p->block_id, sector, @@ -4294,7 +4294,7 @@ static int got_NegAck(struct drbd_conf *mdev, struct p_header80 *h) int size = be32_to_cpu(p->blksize); dec_rs_pending(mdev); drbd_rs_failed_io(mdev, sector, size); - return TRUE; + return true; } return validate_req_change_req_state(mdev, p->block_id, sector, _ack_id_to_req, __func__ , neg_acked); @@ -4332,7 +4332,7 @@ static int got_NegRSDReply(struct drbd_conf *mdev, struct p_header80 *h) put_ldev(mdev); } - return TRUE; + return true; } static int got_BarrierAck(struct drbd_conf *mdev, struct p_header80 *h) @@ -4349,7 +4349,7 @@ static int got_BarrierAck(struct drbd_conf *mdev, struct p_header80 *h) drbd_queue_work_front(&mdev->data.work, w); } - return TRUE; + return true; } static int got_OVResult(struct drbd_conf *mdev, struct p_header80 *h) @@ -4370,7 +4370,7 @@ static int got_OVResult(struct drbd_conf *mdev, struct p_header80 *h) ov_oos_print(mdev); if (!get_ldev(mdev)) - return TRUE; + return true; drbd_rs_complete_io(mdev, sector); dec_rs_pending(mdev); @@ -4393,12 +4393,12 @@ static int got_OVResult(struct drbd_conf *mdev, struct p_header80 *h) } } put_ldev(mdev); - return TRUE; + return true; } static int got_skip(struct drbd_conf *mdev, struct p_header80 *h) { - return TRUE; + return true; } struct asender_cmd { diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 53e7cc506456..528909090df7 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -445,7 +445,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, req->rq_state |= RQ_LOCAL_COMPLETED; req->rq_state &= ~RQ_LOCAL_PENDING; - __drbd_chk_io_error(mdev, FALSE); + __drbd_chk_io_error(mdev, false); _req_may_be_done_not_susp(req, m); put_ldev(mdev); break; @@ -466,7 +466,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, D_ASSERT(!(req->rq_state & RQ_NET_MASK)); - __drbd_chk_io_error(mdev, FALSE); + __drbd_chk_io_error(mdev, false); put_ldev(mdev); /* no point in retrying if there is no good remote data, diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index e201f6f82c0e..9fe3e890da0f 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -96,7 +96,7 @@ void drbd_endio_read_sec_final(struct drbd_epoch_entry *e) __releases(local) if (list_empty(&mdev->read_ee)) wake_up(&mdev->ee_wait); if (test_bit(__EE_WAS_ERROR, &e->flags)) - __drbd_chk_io_error(mdev, FALSE); + __drbd_chk_io_error(mdev, false); spin_unlock_irqrestore(&mdev->req_lock, flags); drbd_queue_work(&mdev->data.work, &e->w); @@ -139,7 +139,7 @@ static void drbd_endio_write_sec_final(struct drbd_epoch_entry *e) __releases(lo : list_empty(&mdev->active_ee); if (test_bit(__EE_WAS_ERROR, &e->flags)) - __drbd_chk_io_error(mdev, FALSE); + __drbd_chk_io_error(mdev, false); spin_unlock_irqrestore(&mdev->req_lock, flags); if (is_syncer_req) -- cgit v1.2.3 From f2024e7ce29f4287395ce879364cd68c7ac226f2 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Fri, 10 Dec 2010 13:44:05 +0100 Subject: drbd: drbd_nl_disk_conf: Avoid a compiler warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Warning: comparison between ‘enum drbd_ret_code’ and ‘enum drbd_state_rv’ Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 9e94c348c42c..ada5483f7e56 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -859,7 +859,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp struct lru_cache *resync_lru = NULL; union drbd_state ns, os; unsigned int max_bio_size; - int rv; + enum drbd_state_rv rv; int cp_discovered = 0; int logical_block_size; @@ -1005,9 +1005,10 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp /* and for any other previously queued work */ drbd_flush_workqueue(mdev); - retcode = _drbd_request_state(mdev, NS(disk, D_ATTACHING), CS_VERBOSE); + rv = _drbd_request_state(mdev, NS(disk, D_ATTACHING), CS_VERBOSE); + retcode = rv; /* FIXME: Type mismatch. */ drbd_resume_io(mdev); - if (retcode < SS_SUCCESS) + if (rv < SS_SUCCESS) goto fail; if (!get_ldev_if_state(mdev, D_ATTACHING)) -- cgit v1.2.3 From 4114be815f9811da42a21dc2f7ff552833660595 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Fri, 10 Dec 2010 17:09:10 +0100 Subject: drbd: receive_bitmap: Fix the wrong return value Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 732aacb46a32..44b102d41b4a 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3499,7 +3499,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne goto out; if (data_size <= (sizeof(*p) - sizeof(p->head))) { dev_err(DEV, "ReportCBitmap packet too small (l:%u)\n", data_size); - return FAILED; + return false; } ret = decode_bitmap_c(mdev, p, &c); } else { -- cgit v1.2.3 From de1f8e4a0af3c2d0dff9f6341fead4b509941282 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Fri, 10 Dec 2010 21:04:00 +0100 Subject: drbd: receive_bitmap: Avoid casting enum drbd_state_rv to int Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 44b102d41b4a..2a604e7b7a01 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3522,12 +3522,14 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne INFO_bm_xfer_stats(mdev, "receive", &c); if (mdev->state.conn == C_WF_BITMAP_T) { + enum drbd_state_rv rv; + ok = !drbd_send_bitmap(mdev); if (!ok) goto out; /* Omit CS_ORDERED with this state transition to avoid deadlocks. */ - ok = _drbd_request_state(mdev, NS(conn, C_WF_SYNC_UUID), CS_VERBOSE); - D_ASSERT(ok == SS_SUCCESS); + rv = _drbd_request_state(mdev, NS(conn, C_WF_SYNC_UUID), CS_VERBOSE); + D_ASSERT(rv == SS_SUCCESS); } else if (mdev->state.conn != C_WF_BITMAP_S) { /* admin may have requested C_DISCONNECTING, * other threads may have noticed network errors */ -- cgit v1.2.3 From 78fcbdae224469cb48767fa29ca41f1d5890e57c Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Fri, 10 Dec 2010 22:18:27 +0100 Subject: drbd: receive_bitmap: Missing free_page() on error path Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 2a604e7b7a01..f217d351d77c 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3499,7 +3499,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne goto out; if (data_size <= (sizeof(*p) - sizeof(p->head))) { dev_err(DEV, "ReportCBitmap packet too small (l:%u)\n", data_size); - return false; + goto out; } ret = decode_bitmap_c(mdev, p, &c); } else { -- cgit v1.2.3 From f70af118e3f3638698ac08959a41b9f9fe7237c8 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Sat, 11 Dec 2010 18:51:50 +0100 Subject: drbd: send_bitmap_rle_or_plain: Get rid of ugly and useless enum Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 7eb447d20cce..7c72595b7ff0 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2140,9 +2140,15 @@ int fill_bitmap_rle_bits(struct drbd_conf *mdev, return len; } -enum { OK, FAILED, DONE } +/** + * send_bitmap_rle_or_plain + * + * Return 0 when done, 1 when another iteration is needed, and a negative error + * code upon failure. + */ +static int send_bitmap_rle_or_plain(struct drbd_conf *mdev, - struct p_header80 *h, struct bm_xfer_ctx *c) + struct p_header80 *h, struct bm_xfer_ctx *c) { struct p_compressed_bm *p = (void*)h; unsigned long num_words; @@ -2152,7 +2158,7 @@ send_bitmap_rle_or_plain(struct drbd_conf *mdev, len = fill_bitmap_rle_bits(mdev, p, c); if (len < 0) - return FAILED; + return -EIO; if (len) { DCBP_set_code(p, RLE_VLI_Bits); @@ -2182,11 +2188,14 @@ send_bitmap_rle_or_plain(struct drbd_conf *mdev, if (c->bit_offset > c->bm_bits) c->bit_offset = c->bm_bits; } - ok = ok ? ((len == 0) ? DONE : OK) : FAILED; - - if (ok == DONE) - INFO_bm_xfer_stats(mdev, "send", c); - return ok; + if (ok) { + if (len == 0) { + INFO_bm_xfer_stats(mdev, "send", c); + return 0; + } else + return 1; + } + return -EIO; } /* See the comment at receive_bitmap() */ @@ -2194,7 +2203,7 @@ int _drbd_send_bitmap(struct drbd_conf *mdev) { struct bm_xfer_ctx c; struct p_header80 *p; - int ret; + int err; ERR_IF(!mdev->bitmap) return false; @@ -2229,11 +2238,11 @@ int _drbd_send_bitmap(struct drbd_conf *mdev) }; do { - ret = send_bitmap_rle_or_plain(mdev, p, &c); - } while (ret == OK); + err = send_bitmap_rle_or_plain(mdev, p, &c); + } while (err > 0); free_page((unsigned long) p); - return (ret == DONE); + return err == 0; } int drbd_send_bitmap(struct drbd_conf *mdev) -- cgit v1.2.3 From 2c46407d241f4b0e5b87959aae8f50f41fdd2a3a Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Sat, 11 Dec 2010 21:53:12 +0100 Subject: drbd: receive_bitmap_plain: Get rid of ugly and useless enum Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 73 ++++++++++++++++++++++++-------------- 1 file changed, 47 insertions(+), 26 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index f217d351d77c..be7fc67eeeca 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3311,23 +3311,32 @@ static int receive_sync_uuid(struct drbd_conf *mdev, enum drbd_packets cmd, unsi return true; } -enum receive_bitmap_ret { OK, DONE, FAILED }; - -static enum receive_bitmap_ret +/** + * receive_bitmap_plain + * + * Return 0 when done, 1 when another iteration is needed, and a negative error + * code upon failure. + */ +static int receive_bitmap_plain(struct drbd_conf *mdev, unsigned int data_size, unsigned long *buffer, struct bm_xfer_ctx *c) { unsigned num_words = min_t(size_t, BM_PACKET_WORDS, c->bm_words - c->word_offset); unsigned want = num_words * sizeof(long); + int err; if (want != data_size) { dev_err(DEV, "%s:want (%u) != data_size (%u)\n", __func__, want, data_size); - return FAILED; + return -EIO; } if (want == 0) - return DONE; - if (drbd_recv(mdev, buffer, want) != want) - return FAILED; + return 0; + err = drbd_recv(mdev, buffer, want); + if (err != want) { + if (err >= 0) + err = -EIO; + return err; + } drbd_bm_merge_lel(mdev, c->word_offset, num_words, buffer); @@ -3336,10 +3345,16 @@ receive_bitmap_plain(struct drbd_conf *mdev, unsigned int data_size, if (c->bit_offset > c->bm_bits) c->bit_offset = c->bm_bits; - return OK; + return 1; } -static enum receive_bitmap_ret +/** + * recv_bm_rle_bits + * + * Return 0 when done, 1 when another iteration is needed, and a negative error + * code upon failure. + */ +static int recv_bm_rle_bits(struct drbd_conf *mdev, struct p_compressed_bm *p, struct bm_xfer_ctx *c) @@ -3359,18 +3374,18 @@ recv_bm_rle_bits(struct drbd_conf *mdev, bits = bitstream_get_bits(&bs, &look_ahead, 64); if (bits < 0) - return FAILED; + return -EIO; for (have = bits; have > 0; s += rl, toggle = !toggle) { bits = vli_decode_bits(&rl, look_ahead); if (bits <= 0) - return FAILED; + return -EIO; if (toggle) { e = s + rl -1; if (e >= c->bm_bits) { dev_err(DEV, "bitmap overflow (e:%lu) while decoding bm RLE packet\n", e); - return FAILED; + return -EIO; } _drbd_bm_set_bits(mdev, s, e); } @@ -3380,14 +3395,14 @@ recv_bm_rle_bits(struct drbd_conf *mdev, have, bits, look_ahead, (unsigned int)(bs.cur.b - p->code), (unsigned int)bs.buf_len); - return FAILED; + return -EIO; } look_ahead >>= bits; have -= bits; bits = bitstream_get_bits(&bs, &tmp, 64 - have); if (bits < 0) - return FAILED; + return -EIO; look_ahead |= tmp << have; have += bits; } @@ -3395,10 +3410,16 @@ recv_bm_rle_bits(struct drbd_conf *mdev, c->bit_offset = s; bm_xfer_ctx_bit_to_word_offset(c); - return (s == c->bm_bits) ? DONE : OK; + return (s != c->bm_bits); } -static enum receive_bitmap_ret +/** + * decode_bitmap_c + * + * Return 0 when done, 1 when another iteration is needed, and a negative error + * code upon failure. + */ +static int decode_bitmap_c(struct drbd_conf *mdev, struct p_compressed_bm *p, struct bm_xfer_ctx *c) @@ -3412,7 +3433,7 @@ decode_bitmap_c(struct drbd_conf *mdev, dev_err(DEV, "receive_bitmap_c: unknown encoding %u\n", p->encoding); drbd_force_state(mdev, NS(conn, C_PROTOCOL_ERROR)); - return FAILED; + return -EIO; } void INFO_bm_xfer_stats(struct drbd_conf *mdev, @@ -3461,7 +3482,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne { struct bm_xfer_ctx c; void *buffer; - enum receive_bitmap_ret ret; + int err; int ok = false; struct p_header80 *h = &mdev->data.rbuf.header.h80; @@ -3480,9 +3501,9 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne .bm_words = drbd_bm_words(mdev), }; - do { + for(;;) { if (cmd == P_BITMAP) { - ret = receive_bitmap_plain(mdev, data_size, buffer, &c); + err = receive_bitmap_plain(mdev, data_size, buffer, &c); } else if (cmd == P_COMPRESSED_BITMAP) { /* MAYBE: sanity check that we speak proto >= 90, * and the feature is enabled! */ @@ -3501,7 +3522,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne dev_err(DEV, "ReportCBitmap packet too small (l:%u)\n", data_size); goto out; } - ret = decode_bitmap_c(mdev, p, &c); + err = decode_bitmap_c(mdev, p, &c); } else { dev_warn(DEV, "receive_bitmap: cmd neither ReportBitMap nor ReportCBitMap (is 0x%x)", cmd); goto out; @@ -3510,14 +3531,14 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne c.packets[cmd == P_BITMAP]++; c.bytes[cmd == P_BITMAP] += sizeof(struct p_header80) + data_size; - if (ret != OK) + if (err <= 0) { + if (err < 0) + goto out; break; - + } if (!drbd_recv_header(mdev, &cmd, &data_size)) goto out; - } while (ret == OK); - if (ret == FAILED) - goto out; + } INFO_bm_xfer_stats(mdev, "receive", &c); -- cgit v1.2.3 From 24dccabb390412d04435e11cfb535df51def7b2d Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Sun, 12 Dec 2010 17:45:41 +0100 Subject: drbd: Fix: drbd_bitmap_io does not return an enum determine_dev_size I guess bitmap I/O errors are supposed to cause drbd_determin_dev_size to return dev_size_error. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index ada5483f7e56..2f0724982143 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -643,11 +643,17 @@ enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev, enum dds_ || prev_size != mdev->ldev->md.md_size_sect; if (la_size_changed || md_moved) { + int err; + drbd_al_shrink(mdev); /* All extents inactive. */ dev_info(DEV, "Writing the whole bitmap, %s\n", la_size_changed && md_moved ? "size changed and md moved" : la_size_changed ? "size changed" : "md moved"); - rv = drbd_bitmap_io(mdev, &drbd_bm_write, "size changed"); /* does drbd_resume_io() ! */ + err = drbd_bitmap_io(mdev, &drbd_bm_write, "size changed"); /* does drbd_resume_io() ! */ + if (err) { + rv = dev_size_error; + goto out; + } drbd_md_mark_dirty(mdev); } -- cgit v1.2.3 From 1b881ef77537f1077482f9946a6a99b4e2dd54b2 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Mon, 13 Dec 2010 18:03:38 +0100 Subject: drbd: Rename __inc_ap_bio_cond to may_inc_ap_bio The old name is confusing: the function does not increment anything. Also rename _inc_ap_bio_cond to inc_ap_bio_cond: there is no need for an underscore. Finally, make it clear that these functions return boolean values. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 22 +++++++++++----------- drivers/block/drbd/drbd_main.c | 2 +- 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 0855934e19d0..f6da48bb8c70 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -2284,14 +2284,14 @@ static inline int is_susp(union drbd_state s) return s.susp || s.susp_nod || s.susp_fen; } -static inline int __inc_ap_bio_cond(struct drbd_conf *mdev) +static inline bool may_inc_ap_bio(struct drbd_conf *mdev) { int mxb = drbd_get_max_buffers(mdev); if (is_susp(mdev->state)) - return 0; + return false; if (test_bit(SUSPEND_IO, &mdev->flags)) - return 0; + return false; /* to avoid potential deadlock or bitmap corruption, * in various places, we only allow new application io @@ -2299,23 +2299,23 @@ static inline int __inc_ap_bio_cond(struct drbd_conf *mdev) /* no new io accepted when attaching or detaching the disk */ if (!drbd_state_is_stable(mdev)) - return 0; + return false; /* since some older kernels don't have atomic_add_unless, * and we are within the spinlock anyways, we have this workaround. */ if (atomic_read(&mdev->ap_bio_cnt) > mxb) - return 0; + return false; if (test_bit(BITMAP_IO, &mdev->flags)) - return 0; - return 1; + return false; + return true; } -static inline int _inc_ap_bio_cond(struct drbd_conf *mdev, int count) +static inline bool inc_ap_bio_cond(struct drbd_conf *mdev, int count) { - int rv = 0; + bool rv = false; spin_lock_irq(&mdev->req_lock); - rv = __inc_ap_bio_cond(mdev); + rv = may_inc_ap_bio(mdev); if (rv) atomic_add(count, &mdev->ap_bio_cnt); spin_unlock_irq(&mdev->req_lock); @@ -2333,7 +2333,7 @@ static inline void inc_ap_bio(struct drbd_conf *mdev, int count) * to avoid races with the reconnect code, * we need to atomic_inc within the spinlock. */ - wait_event(mdev->misc_wait, _inc_ap_bio_cond(mdev, count)); + wait_event(mdev->misc_wait, inc_ap_bio_cond(mdev, count)); } static inline void dec_ap_bio(struct drbd_conf *mdev) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 7c72595b7ff0..67fffad213ec 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -3239,7 +3239,7 @@ static int drbd_congested(void *congested_data, int bdi_bits) char reason = '-'; int r = 0; - if (!__inc_ap_bio_cond(mdev)) { + if (!may_inc_ap_bio(mdev)) { /* DRBD has frozen IO */ r = bdi_bits; reason = 'd'; -- cgit v1.2.3 From 7777a8ba1fc980e5edfe492ebf5a1676497b8db2 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 15 Dec 2010 23:21:39 +0100 Subject: drbd: bitmap: don't count unused bits (fix non-terminating resync) We trusted the on-disk bitmap to have unused bits cleared. In case that is not true for whatever reason, and we take a code path where the unused bits don't get cleared elsewhere (bm_clear_surplus is not called), we may miscount the bits, and get confused during resync, waiting for bits to get cleared that we don't even use: the resync process would not terminate. Fix this by masking out unused bits in __bm_count_bits. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_bitmap.c | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 9390e9526786..c5361487cf47 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -376,9 +376,16 @@ static unsigned long __bm_count_bits(struct drbd_bitmap *b, const int swap_endia unsigned long *p_addr, *bm, offset = 0; unsigned long bits = 0; unsigned long i, do_now; + unsigned long words; - while (offset < b->bm_words) { - i = do_now = min_t(size_t, b->bm_words-offset, LWPP); + /* due to 64bit alignment, the last long on a 32bit arch + * may be not used at all. The last used long will likely + * be only partially used, always. Don't count those bits, + * but mask them out. */ + words = (b->bm_bits + BITS_PER_LONG - 1) >> LN2_BPL; + + while (offset < words) { + i = do_now = min_t(size_t, words-offset, LWPP); p_addr = __bm_map_paddr(b, offset, KM_USER0); bm = p_addr + MLPP(offset); while (i--) { @@ -388,8 +395,20 @@ static unsigned long __bm_count_bits(struct drbd_bitmap *b, const int swap_endia #endif bits += hweight_long(*bm++); } - __bm_unmap(p_addr, KM_USER0); offset += do_now; + if (offset == words) { + /* last word may only be partially used, + * see also bm_clear_surplus. */ + i = (1UL << (b->bm_bits & (BITS_PER_LONG-1))) -1; + if (i) { + bits -= hweight_long(p_addr[do_now-1] & ~i); + p_addr[do_now-1] &= i; + } + /* 32bit arch, may have an unused padding long */ + if (words != b->bm_words) + p_addr[do_now] = 0; + } + __bm_unmap(p_addr, KM_USER0); cond_resched(); } -- cgit v1.2.3 From 95a0f10cddbf93ce89c175ac1c53dad2d20ad309 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 15 Dec 2010 08:59:09 +0100 Subject: drbd: store in-core bitmap little endian, regardless of architecture Our on-disk bitmap is a little endian bitstream. Up to now, we have stored the in-core copy of that in native endian, applying byte order conversion when necessary. Instead, keep the bitmap pages little endian, as they are read from disk, and use the generic_*_le_bit family of functions. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_bitmap.c | 166 ++++++++++++++++++++------------------- 1 file changed, 84 insertions(+), 82 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index c5361487cf47..8d959ed6c2cc 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -30,6 +30,7 @@ #include <asm/kmap_types.h> #include "drbd_int.h" + /* OPAQUE outside this file! * interface defined in drbd_int.h @@ -154,6 +155,14 @@ void drbd_bm_unlock(struct drbd_conf *mdev) mutex_unlock(&b->bm_change); } +static unsigned int bm_bit_to_page_idx(struct drbd_bitmap *b, u64 bitnr) +{ + /* page_nr = (bitnr/8) >> PAGE_SHIFT; */ + unsigned int page_nr = bitnr >> (PAGE_SHIFT + 3); + BUG_ON(page_nr >= b->bm_number_of_pages); + return page_nr; +} + /* word offset to long pointer */ static unsigned long *__bm_map_paddr(struct drbd_bitmap *b, unsigned long offset, const enum km_type km) { @@ -168,6 +177,17 @@ static unsigned long *__bm_map_paddr(struct drbd_bitmap *b, unsigned long offset return (unsigned long *) kmap_atomic(page, km); } +static unsigned long *__bm_map_pidx(struct drbd_bitmap *b, unsigned int idx, const enum km_type km) +{ + struct page *page = b->bm_pages[idx]; + return (unsigned long *) kmap_atomic(page, km); +} + +static unsigned long *bm_map_pidx(struct drbd_bitmap *b, unsigned int idx) +{ + return __bm_map_pidx(b, idx, KM_IRQ1); +} + static unsigned long * bm_map_paddr(struct drbd_bitmap *b, unsigned long offset) { return __bm_map_paddr(b, offset, KM_IRQ1); @@ -329,22 +349,42 @@ void drbd_bm_cleanup(struct drbd_conf *mdev) * this masks out the remaining bits. * Returns the number of bits cleared. */ +#define BITS_PER_PAGE (1UL << (PAGE_SHIFT + 3)) +#define BITS_PER_PAGE_MASK (BITS_PER_PAGE - 1) +#define BITS_PER_LONG_MASK (BITS_PER_LONG - 1) static int bm_clear_surplus(struct drbd_bitmap *b) { - const unsigned long mask = (1UL << (b->bm_bits & (BITS_PER_LONG-1))) - 1; - size_t w = b->bm_bits >> LN2_BPL; - int cleared = 0; + unsigned long mask; unsigned long *p_addr, *bm; + int tmp; + int cleared = 0; - p_addr = bm_map_paddr(b, w); - bm = p_addr + MLPP(w); - if (w < b->bm_words) { + /* number of bits modulo bits per page */ + tmp = (b->bm_bits & BITS_PER_PAGE_MASK); + /* mask the used bits of the word containing the last bit */ + mask = (1UL << (tmp & BITS_PER_LONG_MASK)) -1; + /* bitmap is always stored little endian, + * on disk and in core memory alike */ + mask = cpu_to_lel(mask); + + /* because of the "extra long to catch oob access" we allocate in + * drbd_bm_resize, bm_number_of_pages -1 is not necessarily the page + * containing the last _relevant_ bitmap word */ + p_addr = bm_map_pidx(b, bm_bit_to_page_idx(b, b->bm_bits - 1)); + bm = p_addr + (tmp/BITS_PER_LONG); + if (mask) { + /* If mask != 0, we are not exactly aligned, so bm now points + * to the long containing the last bit. + * If mask == 0, bm already points to the word immediately + * after the last (long word aligned) bit. */ cleared = hweight_long(*bm & ~mask); *bm &= mask; - w++; bm++; + bm++; } - if (w < b->bm_words) { + if (BITS_PER_LONG == 32 && ((bm - p_addr) & 1) == 1) { + /* on a 32bit arch, we may need to zero out + * a padding long to align with a 64bit remote */ cleared += hweight_long(*bm); *bm = 0; } @@ -354,24 +394,41 @@ static int bm_clear_surplus(struct drbd_bitmap *b) static void bm_set_surplus(struct drbd_bitmap *b) { - const unsigned long mask = (1UL << (b->bm_bits & (BITS_PER_LONG-1))) - 1; - size_t w = b->bm_bits >> LN2_BPL; + unsigned long mask; unsigned long *p_addr, *bm; - - p_addr = bm_map_paddr(b, w); - bm = p_addr + MLPP(w); - if (w < b->bm_words) { + int tmp; + + /* number of bits modulo bits per page */ + tmp = (b->bm_bits & BITS_PER_PAGE_MASK); + /* mask the used bits of the word containing the last bit */ + mask = (1UL << (tmp & BITS_PER_LONG_MASK)) -1; + /* bitmap is always stored little endian, + * on disk and in core memory alike */ + mask = cpu_to_lel(mask); + + /* because of the "extra long to catch oob access" we allocate in + * drbd_bm_resize, bm_number_of_pages -1 is not necessarily the page + * containing the last _relevant_ bitmap word */ + p_addr = bm_map_pidx(b, bm_bit_to_page_idx(b, b->bm_bits - 1)); + bm = p_addr + (tmp/BITS_PER_LONG); + if (mask) { + /* If mask != 0, we are not exactly aligned, so bm now points + * to the long containing the last bit. + * If mask == 0, bm already points to the word immediately + * after the last (long word aligned) bit. */ *bm |= ~mask; - bm++; w++; + bm++; } - if (w < b->bm_words) { - *bm = ~(0UL); + if (BITS_PER_LONG == 32 && ((bm - p_addr) & 1) == 1) { + /* on a 32bit arch, we may need to zero out + * a padding long to align with a 64bit remote */ + *bm = ~0UL; } bm_unmap(p_addr); } -static unsigned long __bm_count_bits(struct drbd_bitmap *b, const int swap_endian) +static unsigned long bm_count_bits(struct drbd_bitmap *b) { unsigned long *p_addr, *bm, offset = 0; unsigned long bits = 0; @@ -389,10 +446,6 @@ static unsigned long __bm_count_bits(struct drbd_bitmap *b, const int swap_endia p_addr = __bm_map_paddr(b, offset, KM_USER0); bm = p_addr + MLPP(offset); while (i--) { -#ifndef __LITTLE_ENDIAN - if (swap_endian) - *bm = lel_to_cpu(*bm); -#endif bits += hweight_long(*bm++); } offset += do_now; @@ -415,16 +468,6 @@ static unsigned long __bm_count_bits(struct drbd_bitmap *b, const int swap_endia return bits; } -static unsigned long bm_count_bits(struct drbd_bitmap *b) -{ - return __bm_count_bits(b, 0); -} - -static unsigned long bm_count_bits_swap_endian(struct drbd_bitmap *b) -{ - return __bm_count_bits(b, 1); -} - /* offset and len in long words.*/ static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len) { @@ -662,7 +705,7 @@ void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, size_t number, offset += do_now; while (do_now--) { bits = hweight_long(*bm); - word = *bm | lel_to_cpu(*buffer++); + word = *bm | *buffer++; *bm++ = word; b->bm_set += hweight_long(word) - bits; } @@ -709,7 +752,7 @@ void drbd_bm_get_lel(struct drbd_conf *mdev, size_t offset, size_t number, bm = p_addr + MLPP(offset); offset += do_now; while (do_now--) - *buffer++ = cpu_to_lel(*bm++); + *buffer++ = *bm++; bm_unmap(p_addr); } } @@ -795,39 +838,6 @@ static void bm_page_io_async(struct drbd_conf *mdev, struct drbd_bitmap *b, int } } -# if defined(__LITTLE_ENDIAN) - /* nothing to do, on disk == in memory */ -# define bm_cpu_to_lel(x) ((void)0) -# else -static void bm_cpu_to_lel(struct drbd_bitmap *b) -{ - /* need to cpu_to_lel all the pages ... - * this may be optimized by using - * cpu_to_lel(-1) == -1 and cpu_to_lel(0) == 0; - * the following is still not optimal, but better than nothing */ - unsigned int i; - unsigned long *p_addr, *bm; - if (b->bm_set == 0) { - /* no page at all; avoid swap if all is 0 */ - i = b->bm_number_of_pages; - } else if (b->bm_set == b->bm_bits) { - /* only the last page */ - i = b->bm_number_of_pages - 1; - } else { - /* all pages */ - i = 0; - } - for (; i < b->bm_number_of_pages; i++) { - p_addr = kmap_atomic(b->bm_pages[i], KM_USER0); - for (bm = p_addr; bm < p_addr + PAGE_SIZE/sizeof(long); bm++) - *bm = cpu_to_lel(*bm); - kunmap_atomic(p_addr, KM_USER0); - } -} -# endif -/* lel_to_cpu == cpu_to_lel */ -# define bm_lel_to_cpu(x) bm_cpu_to_lel(x) - /* * bm_rw: read/write the whole bitmap from/to its on disk location. */ @@ -847,10 +857,6 @@ static int bm_rw(struct drbd_conf *mdev, int rw) __must_hold(local) bm_words = drbd_bm_words(mdev); num_pages = (bm_words*sizeof(long) + PAGE_SIZE-1) >> PAGE_SHIFT; - /* on disk bitmap is little endian */ - if (rw == WRITE) - bm_cpu_to_lel(b); - now = jiffies; atomic_set(&b->bm_async_io, num_pages); __clear_bit(BM_MD_IO_ERROR, &b->bm_flags); @@ -869,13 +875,9 @@ static int bm_rw(struct drbd_conf *mdev, int rw) __must_hold(local) now = jiffies; if (rw == WRITE) { - /* swap back endianness */ - bm_lel_to_cpu(b); - /* flush bitmap to stable storage */ drbd_md_flush(mdev); } else /* rw == READ */ { - /* just read, if necessary adjust endianness */ - b->bm_set = bm_count_bits_swap_endian(b); + b->bm_set = bm_count_bits(b); dev_info(DEV, "recounting of set bits took additional %lu jiffies\n", jiffies - now); } @@ -969,9 +971,9 @@ static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo, p_addr = __bm_map_paddr(b, offset, km); if (find_zero_bit) - i = find_next_zero_bit(p_addr, PAGE_SIZE*8, bm_fo & BPP_MASK); + i = generic_find_next_zero_le_bit(p_addr, PAGE_SIZE*8, bm_fo & BPP_MASK); else - i = find_next_bit(p_addr, PAGE_SIZE*8, bm_fo & BPP_MASK); + i = generic_find_next_le_bit(p_addr, PAGE_SIZE*8, bm_fo & BPP_MASK); __bm_unmap(p_addr, km); if (i < PAGE_SIZE*8) { @@ -1064,9 +1066,9 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s, last_page_nr = page_nr; } if (val) - c += (0 == __test_and_set_bit(bitnr & BPP_MASK, p_addr)); + c += (0 == generic___test_and_set_le_bit(bitnr & BPP_MASK, p_addr)); else - c -= (0 != __test_and_clear_bit(bitnr & BPP_MASK, p_addr)); + c -= (0 != generic___test_and_clear_le_bit(bitnr & BPP_MASK, p_addr)); } if (p_addr) __bm_unmap(p_addr, km); @@ -1211,7 +1213,7 @@ int drbd_bm_test_bit(struct drbd_conf *mdev, const unsigned long bitnr) if (bitnr < b->bm_bits) { unsigned long offset = bitnr>>LN2_BPL; p_addr = bm_map_paddr(b, offset); - i = test_bit(bitnr & BPP_MASK, p_addr) ? 1 : 0; + i = generic_test_le_bit(bitnr & BPP_MASK, p_addr) ? 1 : 0; bm_unmap(p_addr); } else if (bitnr == b->bm_bits) { i = -1; @@ -1255,7 +1257,7 @@ int drbd_bm_count_bits(struct drbd_conf *mdev, const unsigned long s, const unsi ERR_IF (bitnr >= b->bm_bits) { dev_err(DEV, "bitnr=%lu bm_bits=%lu\n", bitnr, b->bm_bits); } else { - c += (0 != test_bit(bitnr - (page_nr << (PAGE_SHIFT+3)), p_addr)); + c += (0 != generic_test_le_bit(bitnr - (page_nr << (PAGE_SHIFT+3)), p_addr)); } } if (p_addr) -- cgit v1.2.3 From 19f843aa08e2d8f87a09b4c2edc43b00638423a8 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 15 Dec 2010 08:59:11 +0100 Subject: drbd: bitmap keep track of changes vs on-disk bitmap When we set or clear bits in a bitmap page, also set a flag in the page->private pointer. This allows us to skip writes of unchanged pages. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 132 +++---------- drivers/block/drbd/drbd_bitmap.c | 409 +++++++++++++++++++++++++++++---------- drivers/block/drbd/drbd_int.h | 7 +- drivers/block/drbd/drbd_main.c | 27 ++- drivers/block/drbd/drbd_nl.c | 11 +- drivers/block/drbd/drbd_worker.c | 7 +- 6 files changed, 373 insertions(+), 220 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index e3f0f4d31d75..090fc2ce0df4 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -262,6 +262,33 @@ void drbd_al_complete_io(struct drbd_conf *mdev, sector_t sector) spin_unlock_irqrestore(&mdev->al_lock, flags); } +#if (PAGE_SHIFT + 3) < (AL_EXTENT_SHIFT - BM_BLOCK_SHIFT) +/* Currently BM_BLOCK_SHIFT, BM_EXT_SHIFT and AL_EXTENT_SHIFT + * are still coupled, or assume too much about their relation. + * Code below will not work if this is violated. + * Will be cleaned up with some followup patch. + */ +# error FIXME +#endif + +static unsigned int al_extent_to_bm_page(unsigned int al_enr) +{ + return al_enr >> + /* bit to page */ + ((PAGE_SHIFT + 3) - + /* al extent number to bit */ + (AL_EXTENT_SHIFT - BM_BLOCK_SHIFT)); +} + +static unsigned int rs_extent_to_bm_page(unsigned int rs_enr) +{ + return rs_enr >> + /* bit to page */ + ((PAGE_SHIFT + 3) - + /* al extent number to bit */ + (BM_EXT_SHIFT - BM_BLOCK_SHIFT)); +} + int w_al_write_transaction(struct drbd_conf *mdev, struct drbd_work *w, int unused) { @@ -289,7 +316,7 @@ w_al_write_transaction(struct drbd_conf *mdev, struct drbd_work *w, int unused) * For now, we must not write the transaction, * if we cannot write out the bitmap of the evicted extent. */ if (mdev->state.conn < C_CONNECTED && evicted != LC_FREE) - drbd_bm_write_sect(mdev, evicted/AL_EXT_PER_BM_SECT); + drbd_bm_write_page(mdev, al_extent_to_bm_page(evicted)); /* The bitmap write may have failed, causing a state change. */ if (mdev->state.disk < D_INCONSISTENT) { @@ -635,105 +662,6 @@ out_bio_put: return err; } -/** - * drbd_al_to_on_disk_bm() - * Writes bitmap parts covered by active AL extents - * @mdev: DRBD device. - * - * Called when we detach (unconfigure) local storage, - * or when we go from R_PRIMARY to R_SECONDARY role. - */ -void drbd_al_to_on_disk_bm(struct drbd_conf *mdev) -{ - int i, nr_elements; - unsigned int enr; - struct bio **bios; - struct drbd_atodb_wait wc; - - ERR_IF (!get_ldev_if_state(mdev, D_ATTACHING)) - return; /* sorry, I don't have any act_log etc... */ - - wait_event(mdev->al_wait, lc_try_lock(mdev->act_log)); - - nr_elements = mdev->act_log->nr_elements; - - /* GFP_KERNEL, we are not in anyone's write-out path */ - bios = kzalloc(sizeof(struct bio *) * nr_elements, GFP_KERNEL); - if (!bios) - goto submit_one_by_one; - - atomic_set(&wc.count, 0); - init_completion(&wc.io_done); - wc.mdev = mdev; - wc.error = 0; - - for (i = 0; i < nr_elements; i++) { - enr = lc_element_by_index(mdev->act_log, i)->lc_number; - if (enr == LC_FREE) - continue; - /* next statement also does atomic_inc wc.count and local_cnt */ - if (atodb_prepare_unless_covered(mdev, bios, - enr/AL_EXT_PER_BM_SECT, - &wc)) - goto free_bios_submit_one_by_one; - } - - /* unnecessary optimization? */ - lc_unlock(mdev->act_log); - wake_up(&mdev->al_wait); - - /* all prepared, submit them */ - for (i = 0; i < nr_elements; i++) { - if (bios[i] == NULL) - break; - if (drbd_insert_fault(mdev, DRBD_FAULT_MD_WR)) { - bios[i]->bi_rw = WRITE; - bio_endio(bios[i], -EIO); - } else { - submit_bio(WRITE, bios[i]); - } - } - - /* always (try to) flush bitmap to stable storage */ - drbd_md_flush(mdev); - - /* In case we did not submit a single IO do not wait for - * them to complete. ( Because we would wait forever here. ) - * - * In case we had IOs and they are already complete, there - * is not point in waiting anyways. - * Therefore this if () ... */ - if (atomic_read(&wc.count)) - wait_for_completion(&wc.io_done); - - put_ldev(mdev); - - kfree(bios); - return; - - free_bios_submit_one_by_one: - /* free everything by calling the endio callback directly. */ - for (i = 0; i < nr_elements && bios[i]; i++) - bio_endio(bios[i], 0); - - kfree(bios); - - submit_one_by_one: - dev_warn(DEV, "Using the slow drbd_al_to_on_disk_bm()\n"); - - for (i = 0; i < mdev->act_log->nr_elements; i++) { - enr = lc_element_by_index(mdev->act_log, i)->lc_number; - if (enr == LC_FREE) - continue; - /* Really slow: if we have al-extents 16..19 active, - * sector 4 will be written four times! Synchronous! */ - drbd_bm_write_sect(mdev, enr/AL_EXT_PER_BM_SECT); - } - - lc_unlock(mdev->act_log); - wake_up(&mdev->al_wait); - put_ldev(mdev); -} - /** * drbd_al_apply_to_bm() - Sets the bitmap to diry(1) where covered ba active AL extents * @mdev: DRBD device. @@ -813,7 +741,7 @@ static int w_update_odbm(struct drbd_conf *mdev, struct drbd_work *w, int unused return 1; } - drbd_bm_write_sect(mdev, udw->enr); + drbd_bm_write_page(mdev, rs_extent_to_bm_page(udw->enr)); put_ldev(mdev); kfree(udw); @@ -893,7 +821,6 @@ static void drbd_try_clear_on_disk_bm(struct drbd_conf *mdev, sector_t sector, dev_warn(DEV, "Kicking resync_lru element enr=%u " "out with rs_failed=%d\n", ext->lce.lc_number, ext->rs_failed); - set_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags); } ext->rs_left = rs_left; ext->rs_failed = success ? 0 : count; @@ -912,7 +839,6 @@ static void drbd_try_clear_on_disk_bm(struct drbd_conf *mdev, sector_t sector, drbd_queue_work_front(&mdev->data.work, &udw->w); } else { dev_warn(DEV, "Could not kmalloc an udw\n"); - set_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags); } } } else { diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 8d959ed6c2cc..72cd41a96ef9 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -70,8 +70,7 @@ struct drbd_bitmap { sector_t bm_dev_capacity; struct mutex bm_change; /* serializes resize operations */ - atomic_t bm_async_io; - wait_queue_head_t bm_io_wait; + wait_queue_head_t bm_io_wait; /* used to serialize IO of single pages */ unsigned long bm_flags; @@ -82,7 +81,7 @@ struct drbd_bitmap { /* definition of bits in bm_flags */ #define BM_LOCKED 0 -#define BM_MD_IO_ERROR 1 +// #define BM_MD_IO_ERROR 1 unused now. #define BM_P_VMALLOCED 2 static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s, @@ -155,26 +154,117 @@ void drbd_bm_unlock(struct drbd_conf *mdev) mutex_unlock(&b->bm_change); } -static unsigned int bm_bit_to_page_idx(struct drbd_bitmap *b, u64 bitnr) +/* we store some "meta" info about our pages in page->private */ +/* at a granularity of 4k storage per bitmap bit: + * one peta byte storage: 1<<50 byte, 1<<38 * 4k storage blocks + * 1<<38 bits, + * 1<<23 4k bitmap pages. + * Use 24 bits as page index, covers 2 peta byte storage + * at a granularity of 4k per bit. + * Used to report the failed page idx on io error from the endio handlers. + */ +#define BM_PAGE_IDX_MASK ((1UL<<24)-1) +/* this page is currently read in, or written back */ +#define BM_PAGE_IO_LOCK 31 +/* if there has been an IO error for this page */ +#define BM_PAGE_IO_ERROR 30 +/* this is to be able to intelligently skip disk IO, + * set if bits have been set since last IO. */ +#define BM_PAGE_NEED_WRITEOUT 29 +/* to mark for lazy writeout once syncer cleared all clearable bits, + * we if bits have been cleared since last IO. */ +#define BM_PAGE_LAZY_WRITEOUT 28 + +/* store_page_idx uses non-atomic assingment. It is only used directly after + * allocating the page. All other bm_set_page_* and bm_clear_page_* need to + * use atomic bit manipulation, as set_out_of_sync (and therefore bitmap + * changes) may happen from various contexts, and wait_on_bit/wake_up_bit + * requires it all to be atomic as well. */ +static void bm_store_page_idx(struct page *page, unsigned long idx) { - /* page_nr = (bitnr/8) >> PAGE_SHIFT; */ - unsigned int page_nr = bitnr >> (PAGE_SHIFT + 3); - BUG_ON(page_nr >= b->bm_number_of_pages); - return page_nr; + BUG_ON(0 != (idx & ~BM_PAGE_IDX_MASK)); + page_private(page) |= idx; } -/* word offset to long pointer */ -static unsigned long *__bm_map_paddr(struct drbd_bitmap *b, unsigned long offset, const enum km_type km) +static unsigned long bm_page_to_idx(struct page *page) { - struct page *page; - unsigned long page_nr; + return page_private(page) & BM_PAGE_IDX_MASK; +} + +/* As is very unlikely that the same page is under IO from more than one + * context, we can get away with a bit per page and one wait queue per bitmap. + */ +static void bm_page_lock_io(struct drbd_conf *mdev, int page_nr) +{ + struct drbd_bitmap *b = mdev->bitmap; + void *addr = &page_private(b->bm_pages[page_nr]); + wait_event(b->bm_io_wait, !test_and_set_bit(BM_PAGE_IO_LOCK, addr)); +} + +static void bm_page_unlock_io(struct drbd_conf *mdev, int page_nr) +{ + struct drbd_bitmap *b = mdev->bitmap; + void *addr = &page_private(b->bm_pages[page_nr]); + clear_bit(BM_PAGE_IO_LOCK, addr); + smp_mb__after_clear_bit(); + wake_up(&mdev->bitmap->bm_io_wait); +} + +/* set _before_ submit_io, so it may be reset due to being changed + * while this page is in flight... will get submitted later again */ +static void bm_set_page_unchanged(struct page *page) +{ + /* use cmpxchg? */ + clear_bit(BM_PAGE_NEED_WRITEOUT, &page_private(page)); + clear_bit(BM_PAGE_LAZY_WRITEOUT, &page_private(page)); +} + +static void bm_set_page_need_writeout(struct page *page) +{ + set_bit(BM_PAGE_NEED_WRITEOUT, &page_private(page)); +} + +static int bm_test_page_unchanged(struct page *page) +{ + volatile const unsigned long *addr = &page_private(page); + return (*addr & ((1UL<<BM_PAGE_NEED_WRITEOUT)|(1UL<<BM_PAGE_LAZY_WRITEOUT))) == 0; +} +static void bm_set_page_io_err(struct page *page) +{ + set_bit(BM_PAGE_IO_ERROR, &page_private(page)); +} + +static void bm_clear_page_io_err(struct page *page) +{ + clear_bit(BM_PAGE_IO_ERROR, &page_private(page)); +} + +static void bm_set_page_lazy_writeout(struct page *page) +{ + set_bit(BM_PAGE_LAZY_WRITEOUT, &page_private(page)); +} + +static int bm_test_page_lazy_writeout(struct page *page) +{ + return test_bit(BM_PAGE_LAZY_WRITEOUT, &page_private(page)); +} + +/* on a 32bit box, this would allow for exactly (2<<38) bits. */ +static unsigned int bm_word_to_page_idx(struct drbd_bitmap *b, unsigned long long_nr) +{ /* page_nr = (word*sizeof(long)) >> PAGE_SHIFT; */ - page_nr = offset >> (PAGE_SHIFT - LN2_BPL + 3); + unsigned int page_nr = long_nr >> (PAGE_SHIFT - LN2_BPL + 3); BUG_ON(page_nr >= b->bm_number_of_pages); - page = b->bm_pages[page_nr]; + return page_nr; +} - return (unsigned long *) kmap_atomic(page, km); +static unsigned int bm_bit_to_page_idx(struct drbd_bitmap *b, u64 bitnr) +{ + /* page_nr = (bitnr/8) >> PAGE_SHIFT; */ + unsigned int page_nr = bitnr >> (PAGE_SHIFT + 3); + BUG_ON(page_nr >= b->bm_number_of_pages); + return page_nr; } static unsigned long *__bm_map_pidx(struct drbd_bitmap *b, unsigned int idx, const enum km_type km) @@ -188,11 +278,6 @@ static unsigned long *bm_map_pidx(struct drbd_bitmap *b, unsigned int idx) return __bm_map_pidx(b, idx, KM_IRQ1); } -static unsigned long * bm_map_paddr(struct drbd_bitmap *b, unsigned long offset) -{ - return __bm_map_paddr(b, offset, KM_IRQ1); -} - static void __bm_unmap(unsigned long *p_addr, const enum km_type km) { kunmap_atomic(p_addr, km); @@ -222,6 +307,7 @@ static void bm_unmap(unsigned long *p_addr) * to be able to report device specific. */ + static void bm_free_pages(struct page **pages, unsigned long number) { unsigned long i; @@ -289,6 +375,9 @@ static struct page **bm_realloc_pages(struct drbd_bitmap *b, unsigned long want) bm_vk_free(new_pages, vmalloced); return NULL; } + /* we want to know which page it is + * from the endio handlers */ + bm_store_page_idx(page, i); new_pages[i] = page; } } else { @@ -443,7 +532,7 @@ static unsigned long bm_count_bits(struct drbd_bitmap *b) while (offset < words) { i = do_now = min_t(size_t, words-offset, LWPP); - p_addr = __bm_map_paddr(b, offset, KM_USER0); + p_addr = __bm_map_pidx(b, bm_word_to_page_idx(b, offset), KM_USER0); bm = p_addr + MLPP(offset); while (i--) { bits += hweight_long(*bm++); @@ -472,6 +561,7 @@ static unsigned long bm_count_bits(struct drbd_bitmap *b) static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len) { unsigned long *p_addr, *bm; + unsigned int idx; size_t do_now, end; #define BM_SECTORS_PER_BIT (BM_BLOCK_SIZE/512) @@ -485,7 +575,8 @@ static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len) while (offset < end) { do_now = min_t(size_t, ALIGN(offset + 1, LWPP), end) - offset; - p_addr = bm_map_paddr(b, offset); + idx = bm_word_to_page_idx(b, offset); + p_addr = bm_map_pidx(b, idx); bm = p_addr + MLPP(offset); if (bm+do_now > p_addr + LWPP) { printk(KERN_ALERT "drbd: BUG BUG BUG! p_addr:%p bm:%p do_now:%d\n", @@ -494,6 +585,7 @@ static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len) } memset(bm, c, do_now * sizeof(long)); bm_unmap(p_addr); + bm_set_page_need_writeout(b->bm_pages[idx]); offset += do_now; } } @@ -604,7 +696,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) bm_free_pages(opages + want, have - want); } - p_addr = bm_map_paddr(b, words); + p_addr = bm_map_pidx(b, bm_word_to_page_idx(b, words)); bm = p_addr + MLPP(words); *bm = DRBD_MAGIC; bm_unmap(p_addr); @@ -616,7 +708,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) bm_vk_free(opages, opages_vmalloced); if (!growing) b->bm_set = bm_count_bits(b); - dev_info(DEV, "resync bitmap: bits=%lu words=%lu\n", bits, words); + dev_info(DEV, "resync bitmap: bits=%lu words=%lu pages=%lu\n", bits, words, want); out: drbd_bm_unlock(mdev); @@ -686,6 +778,7 @@ void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, size_t number, struct drbd_bitmap *b = mdev->bitmap; unsigned long *p_addr, *bm; unsigned long word, bits; + unsigned int idx; size_t end, do_now; end = offset + number; @@ -700,7 +793,8 @@ void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, size_t number, spin_lock_irq(&b->bm_lock); while (offset < end) { do_now = min_t(size_t, ALIGN(offset+1, LWPP), end) - offset; - p_addr = bm_map_paddr(b, offset); + idx = bm_word_to_page_idx(b, offset); + p_addr = bm_map_pidx(b, idx); bm = p_addr + MLPP(offset); offset += do_now; while (do_now--) { @@ -710,6 +804,7 @@ void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, size_t number, b->bm_set += hweight_long(word) - bits; } bm_unmap(p_addr); + bm_set_page_need_writeout(b->bm_pages[idx]); } /* with 32bit <-> 64bit cross-platform connect * this is only correct for current usage, @@ -748,7 +843,7 @@ void drbd_bm_get_lel(struct drbd_conf *mdev, size_t offset, size_t number, else { while (offset < end) { do_now = min_t(size_t, ALIGN(offset+1, LWPP), end) - offset; - p_addr = bm_map_paddr(b, offset); + p_addr = bm_map_pidx(b, bm_word_to_page_idx(b, offset)); bm = p_addr + MLPP(offset); offset += do_now; while (do_now--) @@ -786,9 +881,22 @@ void drbd_bm_clear_all(struct drbd_conf *mdev) spin_unlock_irq(&b->bm_lock); } +struct bm_aio_ctx { + struct drbd_conf *mdev; + atomic_t in_flight; + wait_queue_head_t io_wait; + unsigned flags; +#define BM_AIO_COPY_PAGES 1 + int error; +}; + +/* bv_page may be a copy, or may be the original */ static void bm_async_io_complete(struct bio *bio, int error) { - struct drbd_bitmap *b = bio->bi_private; + struct bm_aio_ctx *ctx = bio->bi_private; + struct drbd_conf *mdev = ctx->mdev; + struct drbd_bitmap *b = mdev->bitmap; + unsigned int idx = bm_page_to_idx(bio->bi_io_vec[0].bv_page); int uptodate = bio_flagged(bio, BIO_UPTODATE); @@ -799,35 +907,79 @@ static void bm_async_io_complete(struct bio *bio, int error) if (!error && !uptodate) error = -EIO; + if (!bm_test_page_unchanged(b->bm_pages[idx])) + dev_info(DEV, "bitmap page idx %u changed during IO!\n", idx); + if (error) { - /* doh. what now? - * for now, set all bits, and flag MD_IO_ERROR */ - __set_bit(BM_MD_IO_ERROR, &b->bm_flags); + /* ctx error will hold the completed-last non-zero error code, + * in case error codes differ. */ + ctx->error = error; + bm_set_page_io_err(b->bm_pages[idx]); + /* Not identical to on disk version of it. + * Is BM_PAGE_IO_ERROR enough? */ + if (__ratelimit(&drbd_ratelimit_state)) + dev_err(DEV, "IO ERROR %d on bitmap page idx %u\n", + error, idx); + } else { + bm_clear_page_io_err(b->bm_pages[idx]); + dynamic_dev_dbg(DEV, "bitmap page idx %u completed\n", idx); } - if (atomic_dec_and_test(&b->bm_async_io)) - wake_up(&b->bm_io_wait); + + bm_page_unlock_io(mdev, idx); + + /* FIXME give back to page pool */ + if (ctx->flags & BM_AIO_COPY_PAGES) + put_page(bio->bi_io_vec[0].bv_page); bio_put(bio); + + if (atomic_dec_and_test(&ctx->in_flight)) + wake_up(&ctx->io_wait); } -static void bm_page_io_async(struct drbd_conf *mdev, struct drbd_bitmap *b, int page_nr, int rw) __must_hold(local) +static void bm_page_io_async(struct bm_aio_ctx *ctx, int page_nr, int rw) __must_hold(local) { /* we are process context. we always get a bio */ struct bio *bio = bio_alloc(GFP_KERNEL, 1); + struct drbd_conf *mdev = ctx->mdev; + struct drbd_bitmap *b = mdev->bitmap; + struct page *page; unsigned int len; + sector_t on_disk_sector = mdev->ldev->md.md_offset + mdev->ldev->md.bm_offset; on_disk_sector += ((sector_t)page_nr) << (PAGE_SHIFT-9); /* this might happen with very small - * flexible external meta data device */ + * flexible external meta data device, + * or with PAGE_SIZE > 4k */ len = min_t(unsigned int, PAGE_SIZE, (drbd_md_last_sector(mdev->ldev) - on_disk_sector + 1)<<9); + /* serialize IO on this page */ + bm_page_lock_io(mdev, page_nr); + /* before memcpy and submit, + * so it can be redirtied any time */ + bm_set_page_unchanged(b->bm_pages[page_nr]); + + if (ctx->flags & BM_AIO_COPY_PAGES) { + /* FIXME alloc_page is good enough for now, but actually needs + * to use pre-allocated page pool */ + void *src, *dest; + page = alloc_page(__GFP_HIGHMEM|__GFP_WAIT); + dest = kmap_atomic(page, KM_USER0); + src = kmap_atomic(b->bm_pages[page_nr], KM_USER1); + memcpy(dest, src, PAGE_SIZE); + kunmap_atomic(src, KM_USER1); + kunmap_atomic(dest, KM_USER0); + bm_store_page_idx(page, page_nr); + } else + page = b->bm_pages[page_nr]; + bio->bi_bdev = mdev->ldev->md_bdev; bio->bi_sector = on_disk_sector; - bio_add_page(bio, b->bm_pages[page_nr], len, 0); - bio->bi_private = b; + bio_add_page(bio, page, len, 0); + bio->bi_private = ctx; bio->bi_end_io = bm_async_io_complete; if (drbd_insert_fault(mdev, (rw & WRITE) ? DRBD_FAULT_MD_WR : DRBD_FAULT_MD_RD)) { @@ -841,36 +993,72 @@ static void bm_page_io_async(struct drbd_conf *mdev, struct drbd_bitmap *b, int /* * bm_rw: read/write the whole bitmap from/to its on disk location. */ -static int bm_rw(struct drbd_conf *mdev, int rw) __must_hold(local) +static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_idx) __must_hold(local) { + struct bm_aio_ctx ctx = + { .flags = lazy_writeout_upper_idx ? BM_AIO_COPY_PAGES : 0 }; struct drbd_bitmap *b = mdev->bitmap; - /* sector_t sector; */ - int bm_words, num_pages, i; + int last_page, i, count = 0; unsigned long now; char ppb[10]; int err = 0; - WARN_ON(!bm_is_locked(b)); - - /* no spinlock here, the drbd_bm_lock should be enough! */ + /* + * We are protected against bitmap disappearing/resizing by holding an + * ldev reference (caller must have called get_ldev()). + * For read/write, we are protected against changes to the bitmap by + * the bitmap lock (see drbd_bitmap_io). + * For lazy writeout, we don't care for ongoing changes to the bitmap, + * as we submit copies of pages anyways. + */ + if (!ctx.flags) + WARN_ON(!bm_is_locked(b)); - bm_words = drbd_bm_words(mdev); - num_pages = (bm_words*sizeof(long) + PAGE_SIZE-1) >> PAGE_SHIFT; + /* because of the "extra long to catch oob access" we allocate in + * drbd_bm_resize, bm_number_of_pages -1 is not necessarily the page + * containing the last _relevant_ bitmap word */ + last_page = bm_word_to_page_idx(b, b->bm_words - 1); now = jiffies; - atomic_set(&b->bm_async_io, num_pages); - __clear_bit(BM_MD_IO_ERROR, &b->bm_flags); + ctx.mdev = mdev; + atomic_set(&ctx.in_flight, 1); /* one extra ref */ + init_waitqueue_head(&ctx.io_wait); + ctx.error = 0; /* let the layers below us try to merge these bios... */ - for (i = 0; i < num_pages; i++) - bm_page_io_async(mdev, b, i, rw); + for (i = 0; i <= last_page; i++) { + /* ignore completely unchanged pages */ + if (lazy_writeout_upper_idx && i == lazy_writeout_upper_idx) + break; + if (rw & WRITE) { + if (bm_test_page_unchanged(b->bm_pages[i])) { + dynamic_dev_dbg(DEV, "skipped bm write for idx %u\n", i); + continue; + } + /* during lazy writeout, + * ignore those pages not marked for lazy writeout. */ + if (lazy_writeout_upper_idx && + !bm_test_page_lazy_writeout(b->bm_pages[i])) { + dynamic_dev_dbg(DEV, "skipped bm lazy write for idx %u\n", i); + continue; + } + } + atomic_inc(&ctx.in_flight); + bm_page_io_async(&ctx, i, rw); + ++count; + cond_resched(); + } - wait_event(b->bm_io_wait, atomic_read(&b->bm_async_io) == 0); + atomic_dec(&ctx.in_flight); /* drop the extra ref */ + wait_event(ctx.io_wait, atomic_read(&ctx.in_flight) == 0); + dev_info(DEV, "bitmap %s of %u pages took %lu jiffies\n", + rw == WRITE ? "WRITE" : "READ", + count, jiffies - now); - if (test_bit(BM_MD_IO_ERROR, &b->bm_flags)) { + if (ctx.error) { dev_alert(DEV, "we had at least one MD IO ERROR during bitmap IO\n"); drbd_chk_io_error(mdev, 1, true); - err = -EIO; + err = -EIO; /* ctx.error ? */ } now = jiffies; @@ -895,55 +1083,63 @@ static int bm_rw(struct drbd_conf *mdev, int rw) __must_hold(local) */ int drbd_bm_read(struct drbd_conf *mdev) __must_hold(local) { - return bm_rw(mdev, READ); + return bm_rw(mdev, READ, 0); } /** * drbd_bm_write() - Write the whole bitmap to its on disk location. * @mdev: DRBD device. + * + * Will only write pages that have changed since last IO. */ int drbd_bm_write(struct drbd_conf *mdev) __must_hold(local) { - return bm_rw(mdev, WRITE); + return bm_rw(mdev, WRITE, 0); } /** - * drbd_bm_write_sect: Writes a 512 (MD_SECTOR_SIZE) byte piece of the bitmap + * drbd_bm_lazy_write_out() - Write bitmap pages 0 to @upper_idx-1, if they have changed. * @mdev: DRBD device. - * @enr: Extent number in the resync lru (happens to be sector offset) + * @upper_idx: 0: write all changed pages; +ve: page index to stop scanning for changed pages + */ +int drbd_bm_write_lazy(struct drbd_conf *mdev, unsigned upper_idx) __must_hold(local) +{ + return bm_rw(mdev, WRITE, upper_idx); +} + + +/** + * drbd_bm_write_page: Writes a PAGE_SIZE aligned piece of bitmap + * @mdev: DRBD device. + * @idx: bitmap page index * - * The BM_EXT_SIZE is on purpose exactly the amount of the bitmap covered - * by a single sector write. Therefore enr == sector offset from the - * start of the bitmap. + * We don't want to special case on logical_block_size of the underlaying + * device, so we submit PAGE_SIZE aligned pieces containing the requested enr. + * Note that on "most" systems, PAGE_SIZE is 4k. */ -int drbd_bm_write_sect(struct drbd_conf *mdev, unsigned long enr) __must_hold(local) +int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(local) { - sector_t on_disk_sector = enr + mdev->ldev->md.md_offset - + mdev->ldev->md.bm_offset; - int bm_words, num_words, offset; - int err = 0; + struct bm_aio_ctx ctx = { .flags = BM_AIO_COPY_PAGES, }; - mutex_lock(&mdev->md_io_mutex); - bm_words = drbd_bm_words(mdev); - offset = S2W(enr); /* word offset into bitmap */ - num_words = min(S2W(1), bm_words - offset); - if (num_words < S2W(1)) - memset(page_address(mdev->md_io_page), 0, MD_SECTOR_SIZE); - drbd_bm_get_lel(mdev, offset, num_words, - page_address(mdev->md_io_page)); - if (!drbd_md_sync_page_io(mdev, mdev->ldev, on_disk_sector, WRITE)) { - int i; - err = -EIO; - dev_err(DEV, "IO ERROR writing bitmap sector %lu " - "(meta-disk sector %llus)\n", - enr, (unsigned long long)on_disk_sector); - drbd_chk_io_error(mdev, 1, true); - for (i = 0; i < AL_EXT_PER_BM_SECT; i++) - drbd_bm_ALe_set_all(mdev, enr*AL_EXT_PER_BM_SECT+i); + if (bm_test_page_unchanged(mdev->bitmap->bm_pages[idx])) { + dev_info(DEV, "skipped bm page write for idx %u\n", idx); + return 0; } + + ctx.mdev = mdev; + atomic_set(&ctx.in_flight, 1); + init_waitqueue_head(&ctx.io_wait); + + bm_page_io_async(&ctx, idx, WRITE_SYNC); + wait_event(ctx.io_wait, atomic_read(&ctx.in_flight) == 0); + + if (ctx.error) + drbd_chk_io_error(mdev, 1, true); + /* that should force detach, so the in memory bitmap will be + * gone in a moment as well. */ + mdev->bm_writ_cnt++; - mutex_unlock(&mdev->md_io_mutex); - return err; + return ctx.error; } /* NOTE @@ -965,10 +1161,9 @@ static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo, dev_err(DEV, "bm_fo=%lu bm_bits=%lu\n", bm_fo, b->bm_bits); } else { while (bm_fo < b->bm_bits) { - unsigned long offset; - bit_offset = bm_fo & ~BPP_MASK; /* bit offset of the page */ - offset = bit_offset >> LN2_BPL; /* word offset of the page */ - p_addr = __bm_map_paddr(b, offset, km); + /* bit offset of the first bit in the page */ + bit_offset = bm_fo & ~BPP_MASK; + p_addr = __bm_map_pidx(b, bm_bit_to_page_idx(b, bm_fo), km); if (find_zero_bit) i = generic_find_next_zero_le_bit(p_addr, PAGE_SIZE*8, bm_fo & BPP_MASK); @@ -1048,8 +1243,9 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s, struct drbd_bitmap *b = mdev->bitmap; unsigned long *p_addr = NULL; unsigned long bitnr; - unsigned long last_page_nr = -1UL; + unsigned int last_page_nr = -1U; int c = 0; + int changed_total = 0; if (e >= b->bm_bits) { dev_err(DEV, "ASSERT FAILED: bit_s=%lu bit_e=%lu bm_bits=%lu\n", @@ -1057,12 +1253,17 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s, e = b->bm_bits ? b->bm_bits -1 : 0; } for (bitnr = s; bitnr <= e; bitnr++) { - unsigned long offset = bitnr>>LN2_BPL; - unsigned long page_nr = offset >> (PAGE_SHIFT - LN2_BPL + 3); + unsigned int page_nr = bm_bit_to_page_idx(b, bitnr); if (page_nr != last_page_nr) { if (p_addr) __bm_unmap(p_addr, km); - p_addr = __bm_map_paddr(b, offset, km); + if (c < 0) + bm_set_page_lazy_writeout(b->bm_pages[last_page_nr]); + else if (c > 0) + bm_set_page_need_writeout(b->bm_pages[last_page_nr]); + changed_total += c; + c = 0; + p_addr = __bm_map_pidx(b, page_nr, km); last_page_nr = page_nr; } if (val) @@ -1072,8 +1273,13 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s, } if (p_addr) __bm_unmap(p_addr, km); - b->bm_set += c; - return c; + if (c < 0) + bm_set_page_lazy_writeout(b->bm_pages[last_page_nr]); + else if (c > 0) + bm_set_page_need_writeout(b->bm_pages[last_page_nr]); + changed_total += c; + b->bm_set += changed_total; + return changed_total; } /* returns number of bits actually changed. @@ -1211,8 +1417,7 @@ int drbd_bm_test_bit(struct drbd_conf *mdev, const unsigned long bitnr) if (bm_is_locked(b)) bm_print_lock_info(mdev); if (bitnr < b->bm_bits) { - unsigned long offset = bitnr>>LN2_BPL; - p_addr = bm_map_paddr(b, offset); + p_addr = bm_map_pidx(b, bm_bit_to_page_idx(b, bitnr)); i = generic_test_le_bit(bitnr & BPP_MASK, p_addr) ? 1 : 0; bm_unmap(p_addr); } else if (bitnr == b->bm_bits) { @@ -1231,10 +1436,10 @@ int drbd_bm_count_bits(struct drbd_conf *mdev, const unsigned long s, const unsi { unsigned long flags; struct drbd_bitmap *b = mdev->bitmap; - unsigned long *p_addr = NULL, page_nr = -1; + unsigned long *p_addr = NULL; unsigned long bitnr; + unsigned int page_nr = -1U; int c = 0; - size_t w; /* If this is called without a bitmap, that is a bug. But just to be * robust in case we screwed up elsewhere, in that case pretend there @@ -1247,12 +1452,12 @@ int drbd_bm_count_bits(struct drbd_conf *mdev, const unsigned long s, const unsi if (bm_is_locked(b)) bm_print_lock_info(mdev); for (bitnr = s; bitnr <= e; bitnr++) { - w = bitnr >> LN2_BPL; - if (page_nr != w >> (PAGE_SHIFT - LN2_BPL + 3)) { - page_nr = w >> (PAGE_SHIFT - LN2_BPL + 3); + unsigned int idx = bm_bit_to_page_idx(b, bitnr); + if (page_nr != idx) { + page_nr = idx; if (p_addr) bm_unmap(p_addr); - p_addr = bm_map_paddr(b, w); + p_addr = bm_map_pidx(b, idx); } ERR_IF (bitnr >= b->bm_bits) { dev_err(DEV, "bitnr=%lu bm_bits=%lu\n", bitnr, b->bm_bits); @@ -1300,7 +1505,7 @@ int drbd_bm_e_weight(struct drbd_conf *mdev, unsigned long enr) count = 0; if (s < b->bm_words) { int n = e-s; - p_addr = bm_map_paddr(b, s); + p_addr = bm_map_pidx(b, bm_word_to_page_idx(b, s)); bm = p_addr + MLPP(s); while (n--) count += hweight_long(*bm++); @@ -1335,7 +1540,7 @@ unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev, unsigned long al_enr) count = 0; if (s < b->bm_words) { i = do_now = e-s; - p_addr = bm_map_paddr(b, s); + p_addr = bm_map_pidx(b, bm_word_to_page_idx(b, s)); bm = p_addr + MLPP(s); while (i--) { count += hweight_long(*bm); diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index f6da48bb8c70..74cc50a21822 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -833,7 +833,7 @@ enum { CRASHED_PRIMARY, /* This node was a crashed primary. * Gets cleared when the state.conn * goes into C_CONNECTED state. */ - WRITE_BM_AFTER_RESYNC, /* A kmalloc() during resync failed */ + NO_BARRIER_SUPP, /* underlying block device doesn't implement barriers */ CONSIDER_RESYNC, MD_NO_FUA, /* Users wants us to not use FUA/FLUSH on meta data dev */ @@ -1428,7 +1428,7 @@ extern void _drbd_bm_set_bits(struct drbd_conf *mdev, const unsigned long s, const unsigned long e); extern int drbd_bm_test_bit(struct drbd_conf *mdev, unsigned long bitnr); extern int drbd_bm_e_weight(struct drbd_conf *mdev, unsigned long enr); -extern int drbd_bm_write_sect(struct drbd_conf *mdev, unsigned long enr) __must_hold(local); +extern int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(local); extern int drbd_bm_read(struct drbd_conf *mdev) __must_hold(local); extern int drbd_bm_write(struct drbd_conf *mdev) __must_hold(local); extern unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev, @@ -1446,7 +1446,7 @@ extern int drbd_bm_rs_done(struct drbd_conf *mdev); /* for receive_bitmap */ extern void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, size_t number, unsigned long *buffer); -/* for _drbd_send_bitmap and drbd_bm_write_sect */ +/* for _drbd_send_bitmap */ extern void drbd_bm_get_lel(struct drbd_conf *mdev, size_t offset, size_t number, unsigned long *buffer); @@ -1641,7 +1641,6 @@ extern int __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, #define drbd_set_out_of_sync(mdev, sector, size) \ __drbd_set_out_of_sync(mdev, sector, size, __FILE__, __LINE__) extern void drbd_al_apply_to_bm(struct drbd_conf *mdev); -extern void drbd_al_to_on_disk_bm(struct drbd_conf *mdev); extern void drbd_al_shrink(struct drbd_conf *mdev); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 67fffad213ec..57ed7181742d 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1289,6 +1289,26 @@ static void abw_start_sync(struct drbd_conf *mdev, int rv) } } +int drbd_bitmap_io_from_worker(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), char *why) +{ + int rv; + + D_ASSERT(current == mdev->worker.task); + + /* open coded non-blocking drbd_suspend_io(mdev); */ + set_bit(SUSPEND_IO, &mdev->flags); + if (!is_susp(mdev->state)) + D_ASSERT(atomic_read(&mdev->ap_bio_cnt) == 0); + + drbd_bm_lock(mdev, why); + rv = io_fn(mdev); + drbd_bm_unlock(mdev); + + drbd_resume_io(mdev); + + return rv; +} + /** * after_state_ch() - Perform after state change actions that may sleep * @mdev: DRBD device. @@ -1404,7 +1424,12 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, /* D_DISKLESS Peer becomes secondary */ if (os.peer == R_PRIMARY && ns.peer == R_SECONDARY) - drbd_al_to_on_disk_bm(mdev); + drbd_bitmap_io_from_worker(mdev, &drbd_bm_write, "demote diskless peer"); + put_ldev(mdev); + } + + if (os.role == R_PRIMARY && ns.role == R_SECONDARY && get_ldev(mdev)) { + drbd_bitmap_io_from_worker(mdev, &drbd_bm_write, "demote"); put_ldev(mdev); } diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 2f0724982143..77dc022eaf6b 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -407,10 +407,8 @@ drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) } } - if ((new_role == R_SECONDARY) && get_ldev(mdev)) { - drbd_al_to_on_disk_bm(mdev); - put_ldev(mdev); - } + /* writeout of activity log covered areas of the bitmap + * to stable storage done in after state change already */ if (mdev->state.conn >= C_WF_REPORT_PARAMS) { /* if this was forced, we should consider sync */ @@ -1174,7 +1172,10 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp if (cp_discovered) { drbd_al_apply_to_bm(mdev); - drbd_al_to_on_disk_bm(mdev); + if (drbd_bitmap_io(mdev, &drbd_bm_write, "crashed primary apply AL")) { + retcode = ERR_IO_MD_DISK; + goto force_diskless_dec; + } } if (_drbd_bm_total_weight(mdev) == drbd_bm_bits(mdev)) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 9fe3e890da0f..d17f2ed777ce 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -907,10 +907,8 @@ out: drbd_md_sync(mdev); - if (test_and_clear_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags)) { - dev_info(DEV, "Writing the whole bitmap\n"); - drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL, "write from resync_finished"); - } + dev_info(DEV, "Writing changed bitmap pages\n"); + drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL, "write from resync_finished"); if (khelper_cmd) drbd_khelper(mdev, khelper_cmd); @@ -1127,7 +1125,6 @@ void drbd_ov_oos_found(struct drbd_conf *mdev, sector_t sector, int size) mdev->ov_last_oos_size = size>>9; } drbd_set_out_of_sync(mdev, sector, size); - set_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags); } int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel) -- cgit v1.2.3 From 4b0715f09655e76ca24c35a9e25e7c464c2f7346 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Tue, 14 Dec 2010 15:13:04 +0100 Subject: drbd: allow petabyte storage on 64bit arch Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_bitmap.c | 170 ++++++++++++++++++++++++--------------- drivers/block/drbd/drbd_int.h | 41 ++++++---- drivers/block/drbd/drbd_nl.c | 8 +- drivers/block/drbd/drbd_proc.c | 6 +- drivers/block/drbd/drbd_worker.c | 2 +- 5 files changed, 142 insertions(+), 85 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 72cd41a96ef9..0e31e573af72 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -37,10 +37,46 @@ * convention: * function name drbd_bm_... => used elsewhere, "public". * function name bm_... => internal to implementation, "private". + */ + - * Note that since find_first_bit returns int, at the current granularity of - * the bitmap (4KB per byte), this implementation "only" supports up to - * 1<<(32+12) == 16 TB... +/* + * LIMITATIONS: + * We want to support >= peta byte of backend storage, while for now still using + * a granularity of one bit per 4KiB of storage. + * 1 << 50 bytes backend storage (1 PiB) + * 1 << (50 - 12) bits needed + * 38 --> we need u64 to index and count bits + * 1 << (38 - 3) bitmap bytes needed + * 35 --> we still need u64 to index and count bytes + * (that's 32 GiB of bitmap for 1 PiB storage) + * 1 << (35 - 2) 32bit longs needed + * 33 --> we'd even need u64 to index and count 32bit long words. + * 1 << (35 - 3) 64bit longs needed + * 32 --> we could get away with a 32bit unsigned int to index and count + * 64bit long words, but I rather stay with unsigned long for now. + * We probably should neither count nor point to bytes or long words + * directly, but either by bitnumber, or by page index and offset. + * 1 << (35 - 12) + * 22 --> we need that much 4KiB pages of bitmap. + * 1 << (22 + 3) --> on a 64bit arch, + * we need 32 MiB to store the array of page pointers. + * + * Because I'm lazy, and because the resulting patch was too large, too ugly + * and still incomplete, on 32bit we still "only" support 16 TiB (minus some), + * (1 << 32) bits * 4k storage. + * + + * bitmap storage and IO: + * Bitmap is stored little endian on disk, and is kept little endian in + * core memory. Currently we still hold the full bitmap in core as long + * as we are "attached" to a local disk, which at 32 GiB for 1PiB storage + * seems excessive. + * + * We plan to reduce the amount of in-core bitmap pages by pageing them in + * and out against their on-disk location as necessary, but need to make + * sure we don't cause too much meta data IO, and must not deadlock in + * tight memory situations. This needs some more work. */ /* @@ -56,13 +92,9 @@ struct drbd_bitmap { struct page **bm_pages; spinlock_t bm_lock; - /* WARNING unsigned long bm_*: - * 32bit number of bit offset is just enough for 512 MB bitmap. - * it will blow up if we make the bitmap bigger... - * not that it makes much sense to have a bitmap that large, - * rather change the granularity to 16k or 64k or something. - * (that implies other problems, however...) - */ + + /* see LIMITATIONS: above */ + unsigned long bm_set; /* nr of set bits; THINK maybe atomic_t? */ unsigned long bm_bits; size_t bm_words; @@ -517,43 +549,39 @@ static void bm_set_surplus(struct drbd_bitmap *b) bm_unmap(p_addr); } +/* you better not modify the bitmap while this is running, + * or its results will be stale */ static unsigned long bm_count_bits(struct drbd_bitmap *b) { - unsigned long *p_addr, *bm, offset = 0; + unsigned long *p_addr; unsigned long bits = 0; - unsigned long i, do_now; - unsigned long words; - - /* due to 64bit alignment, the last long on a 32bit arch - * may be not used at all. The last used long will likely - * be only partially used, always. Don't count those bits, - * but mask them out. */ - words = (b->bm_bits + BITS_PER_LONG - 1) >> LN2_BPL; - - while (offset < words) { - i = do_now = min_t(size_t, words-offset, LWPP); - p_addr = __bm_map_pidx(b, bm_word_to_page_idx(b, offset), KM_USER0); - bm = p_addr + MLPP(offset); - while (i--) { - bits += hweight_long(*bm++); - } - offset += do_now; - if (offset == words) { - /* last word may only be partially used, - * see also bm_clear_surplus. */ - i = (1UL << (b->bm_bits & (BITS_PER_LONG-1))) -1; - if (i) { - bits -= hweight_long(p_addr[do_now-1] & ~i); - p_addr[do_now-1] &= i; - } - /* 32bit arch, may have an unused padding long */ - if (words != b->bm_words) - p_addr[do_now] = 0; - } + unsigned long mask = (1UL << (b->bm_bits & BITS_PER_LONG_MASK)) -1; + int idx, last_page, i, last_word; + + /* because of the "extra long to catch oob access" we allocate in + * drbd_bm_resize, bm_number_of_pages -1 is not necessarily the page + * containing the last _relevant_ bitmap word */ + last_page = bm_bit_to_page_idx(b, b->bm_bits-1); + + /* all but last page */ + for (idx = 0; idx < last_page; idx++) { + p_addr = __bm_map_pidx(b, idx, KM_USER0); + for (i = 0; i < LWPP; i++) + bits += hweight_long(p_addr[i]); __bm_unmap(p_addr, KM_USER0); cond_resched(); } - + /* last (or only) page */ + last_word = ((b->bm_bits - 1) & BITS_PER_PAGE_MASK) >> LN2_BPL; + p_addr = __bm_map_pidx(b, idx, KM_USER0); + for (i = 0; i < last_word; i++) + bits += hweight_long(p_addr[i]); + p_addr[last_word] &= cpu_to_lel(mask); + bits += hweight_long(p_addr[last_word]); + /* 32bit arch, may have an unused padding long */ + if (BITS_PER_LONG == 32 && (last_word & 1) == 0) + p_addr[last_word+1] = 0; + __bm_unmap(p_addr, KM_USER0); return bits; } @@ -564,8 +592,6 @@ static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len) unsigned int idx; size_t do_now, end; -#define BM_SECTORS_PER_BIT (BM_BLOCK_SIZE/512) - end = offset + len; if (end > b->bm_words) { @@ -645,8 +671,14 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) words = ALIGN(bits, 64) >> LN2_BPL; if (get_ldev(mdev)) { - D_ASSERT((u64)bits <= (((u64)mdev->ldev->md.md_size_sect-MD_BM_OFFSET) << 12)); + u64 bits_on_disk = ((u64)mdev->ldev->md.md_size_sect-MD_BM_OFFSET) << 12; put_ldev(mdev); + if (bits > bits_on_disk) { + dev_info(DEV, "bits = %lu\n", bits); + dev_info(DEV, "bits_on_disk = %llu\n", bits_on_disk); + err = -ENOSPC; + goto out; + } } /* one extra long to catch off by one errors */ @@ -1113,9 +1145,12 @@ int drbd_bm_write_lazy(struct drbd_conf *mdev, unsigned upper_idx) __must_hold(l * @mdev: DRBD device. * @idx: bitmap page index * - * We don't want to special case on logical_block_size of the underlaying - * device, so we submit PAGE_SIZE aligned pieces containing the requested enr. + * We don't want to special case on logical_block_size of the backend device, + * so we submit PAGE_SIZE aligned pieces. * Note that on "most" systems, PAGE_SIZE is 4k. + * + * In case this becomes an issue on systems with larger PAGE_SIZE, + * we may want to change this again to write 4k aligned 4k pieces. */ int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(local) { @@ -1144,52 +1179,57 @@ int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(loc /* NOTE * find_first_bit returns int, we return unsigned long. - * should not make much difference anyways, but ... + * For this to work on 32bit arch with bitnumbers > (1<<32), + * we'd need to return u64, and get a whole lot of other places + * fixed where we still use unsigned long. * * this returns a bit number, NOT a sector! */ -#define BPP_MASK ((1UL << (PAGE_SHIFT+3)) - 1) static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo, const int find_zero_bit, const enum km_type km) { struct drbd_bitmap *b = mdev->bitmap; - unsigned long i = -1UL; unsigned long *p_addr; - unsigned long bit_offset; /* bit offset of the mapped page. */ + unsigned long bit_offset; + unsigned i; + if (bm_fo > b->bm_bits) { dev_err(DEV, "bm_fo=%lu bm_bits=%lu\n", bm_fo, b->bm_bits); + bm_fo = DRBD_END_OF_BITMAP; } else { while (bm_fo < b->bm_bits) { /* bit offset of the first bit in the page */ - bit_offset = bm_fo & ~BPP_MASK; + bit_offset = bm_fo & ~BITS_PER_PAGE_MASK; p_addr = __bm_map_pidx(b, bm_bit_to_page_idx(b, bm_fo), km); if (find_zero_bit) - i = generic_find_next_zero_le_bit(p_addr, PAGE_SIZE*8, bm_fo & BPP_MASK); + i = generic_find_next_zero_le_bit(p_addr, + PAGE_SIZE*8, bm_fo & BITS_PER_PAGE_MASK); else - i = generic_find_next_le_bit(p_addr, PAGE_SIZE*8, bm_fo & BPP_MASK); + i = generic_find_next_le_bit(p_addr, + PAGE_SIZE*8, bm_fo & BITS_PER_PAGE_MASK); __bm_unmap(p_addr, km); if (i < PAGE_SIZE*8) { - i = bit_offset + i; - if (i >= b->bm_bits) + bm_fo = bit_offset + i; + if (bm_fo >= b->bm_bits) break; goto found; } bm_fo = bit_offset + PAGE_SIZE*8; } - i = -1UL; + bm_fo = DRBD_END_OF_BITMAP; } found: - return i; + return bm_fo; } static unsigned long bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo, const int find_zero_bit) { struct drbd_bitmap *b = mdev->bitmap; - unsigned long i = -1UL; + unsigned long i = DRBD_END_OF_BITMAP; ERR_IF(!b) return i; ERR_IF(!b->bm_pages) return i; @@ -1267,9 +1307,9 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s, last_page_nr = page_nr; } if (val) - c += (0 == generic___test_and_set_le_bit(bitnr & BPP_MASK, p_addr)); + c += (0 == generic___test_and_set_le_bit(bitnr & BITS_PER_PAGE_MASK, p_addr)); else - c -= (0 != generic___test_and_clear_le_bit(bitnr & BPP_MASK, p_addr)); + c -= (0 != generic___test_and_clear_le_bit(bitnr & BITS_PER_PAGE_MASK, p_addr)); } if (p_addr) __bm_unmap(p_addr, km); @@ -1418,7 +1458,7 @@ int drbd_bm_test_bit(struct drbd_conf *mdev, const unsigned long bitnr) bm_print_lock_info(mdev); if (bitnr < b->bm_bits) { p_addr = bm_map_pidx(b, bm_bit_to_page_idx(b, bitnr)); - i = generic_test_le_bit(bitnr & BPP_MASK, p_addr) ? 1 : 0; + i = generic_test_le_bit(bitnr & BITS_PER_PAGE_MASK, p_addr) ? 1 : 0; bm_unmap(p_addr); } else if (bitnr == b->bm_bits) { i = -1; @@ -1517,13 +1557,15 @@ int drbd_bm_e_weight(struct drbd_conf *mdev, unsigned long enr) return count; } -/* set all bits covered by the AL-extent al_enr */ +/* Set all bits covered by the AL-extent al_enr. + * Returns number of bits changed. */ unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev, unsigned long al_enr) { struct drbd_bitmap *b = mdev->bitmap; unsigned long *p_addr, *bm; unsigned long weight; - int count, s, e, i, do_now; + unsigned long s, e; + int count, i, do_now; ERR_IF(!b) return 0; ERR_IF(!b->bm_pages) return 0; @@ -1552,7 +1594,7 @@ unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev, unsigned long al_enr) if (e == b->bm_words) b->bm_set -= bm_clear_surplus(b); } else { - dev_err(DEV, "start offset (%d) too large in drbd_bm_ALe_set_all\n", s); + dev_err(DEV, "start offset (%lu) too large in drbd_bm_ALe_set_all\n", s); } weight = b->bm_set - weight; spin_unlock_irq(&b->bm_lock); diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 74cc50a21822..5a2d0ec72b34 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1003,9 +1003,9 @@ struct drbd_conf { struct hlist_head *tl_hash; unsigned int tl_hash_s; - /* blocks to sync in this run [unit BM_BLOCK_SIZE] */ + /* blocks to resync in this run [unit BM_BLOCK_SIZE] */ unsigned long rs_total; - /* number of sync IOs that failed in this run */ + /* number of resync blocks that failed in this run */ unsigned long rs_failed; /* Syncer's start time [unit jiffies] */ unsigned long rs_start; @@ -1399,7 +1399,9 @@ struct bm_extent { * you should use 64bit OS for that much storage, anyways. */ #define DRBD_MAX_SECTORS_FLEX BM_BIT_TO_SECT(0xffff7fff) #else -#define DRBD_MAX_SECTORS_FLEX BM_BIT_TO_SECT(0x1LU << 32) +/* we allow up to 1 PiB now on 64bit architecture with "flexible" meta data */ +#define DRBD_MAX_SECTORS_FLEX (1UL << 51) +/* corresponds to (1UL << 38) bits right now. */ #endif #endif @@ -1419,11 +1421,15 @@ extern int drbd_bm_resize(struct drbd_conf *mdev, sector_t sectors, int set_new extern void drbd_bm_cleanup(struct drbd_conf *mdev); extern void drbd_bm_set_all(struct drbd_conf *mdev); extern void drbd_bm_clear_all(struct drbd_conf *mdev); +/* set/clear/test only a few bits at a time */ extern int drbd_bm_set_bits( struct drbd_conf *mdev, unsigned long s, unsigned long e); extern int drbd_bm_clear_bits( struct drbd_conf *mdev, unsigned long s, unsigned long e); -/* bm_set_bits variant for use while holding drbd_bm_lock */ +extern int drbd_bm_count_bits( + struct drbd_conf *mdev, const unsigned long s, const unsigned long e); +/* bm_set_bits variant for use while holding drbd_bm_lock, + * may process the whole bitmap in one go */ extern void _drbd_bm_set_bits(struct drbd_conf *mdev, const unsigned long s, const unsigned long e); extern int drbd_bm_test_bit(struct drbd_conf *mdev, unsigned long bitnr); @@ -1436,6 +1442,8 @@ extern unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev, extern size_t drbd_bm_words(struct drbd_conf *mdev); extern unsigned long drbd_bm_bits(struct drbd_conf *mdev); extern sector_t drbd_bm_capacity(struct drbd_conf *mdev); + +#define DRBD_END_OF_BITMAP (~(unsigned long)0) extern unsigned long drbd_bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo); /* bm_find_next variants for use while you hold drbd_bm_lock() */ extern unsigned long _drbd_bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo); @@ -1452,8 +1460,6 @@ extern void drbd_bm_get_lel(struct drbd_conf *mdev, size_t offset, extern void drbd_bm_lock(struct drbd_conf *mdev, char *why); extern void drbd_bm_unlock(struct drbd_conf *mdev); - -extern int drbd_bm_count_bits(struct drbd_conf *mdev, const unsigned long s, const unsigned long e); /* drbd_main.c */ extern struct kmem_cache *drbd_request_cache; @@ -2158,10 +2164,8 @@ extern int _get_ldev_if_state(struct drbd_conf *mdev, enum drbd_disk_state mins) static inline void drbd_get_syncer_progress(struct drbd_conf *mdev, unsigned long *bits_left, unsigned int *per_mil_done) { - /* - * this is to break it at compile time when we change that - * (we may feel 4TB maximum storage per drbd is not enough) - */ + /* this is to break it at compile time when we change that, in case we + * want to support more than (1<<32) bits on a 32bit arch. */ typecheck(unsigned long, mdev->rs_total); /* note: both rs_total and rs_left are in bits, i.e. in @@ -2186,10 +2190,19 @@ static inline void drbd_get_syncer_progress(struct drbd_conf *mdev, *bits_left, mdev->rs_total, mdev->rs_failed); *per_mil_done = 0; } else { - /* make sure the calculation happens in long context */ - unsigned long tmp = 1000UL - - (*bits_left >> 10)*1000UL - / ((mdev->rs_total >> 10) + 1UL); + /* Make sure the division happens in long context. + * We allow up to one petabyte storage right now, + * at a granularity of 4k per bit that is 2**38 bits. + * After shift right and multiplication by 1000, + * this should still fit easily into a 32bit long, + * so we don't need a 64bit division on 32bit arch. + * Note: currently we don't support such large bitmaps on 32bit + * arch anyways, but no harm done to be prepared for it here. + */ + unsigned int shift = mdev->rs_total >= (1ULL << 32) ? 16 : 10; + unsigned long left = *bits_left >> shift; + unsigned long total = 1UL + (mdev->rs_total >> shift); + unsigned long tmp = 1000UL - left * 1000UL/total; *per_mil_done = tmp; } } diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 77dc022eaf6b..a46bc0287e21 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -527,17 +527,19 @@ static void drbd_md_set_sector_offsets(struct drbd_conf *mdev, } } +/* input size is expected to be in KB */ char *ppsize(char *buf, unsigned long long size) { - /* Needs 9 bytes at max. */ + /* Needs 9 bytes at max including trailing NUL: + * -1ULL ==> "16384 EB" */ static char units[] = { 'K', 'M', 'G', 'T', 'P', 'E' }; int base = 0; - while (size >= 10000) { + while (size >= 10000 && base < sizeof(units)-1) { /* shift + round */ size = (size >> 10) + !!(size & (1<<9)); base++; } - sprintf(buf, "%lu %cB", (long)size, units[base]); + sprintf(buf, "%u %cB", (unsigned)size, units[base]); return buf; } diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index efba62cd2e58..2959cdfb77f5 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -91,9 +91,9 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq) seq_printf(seq, "sync'ed:"); seq_printf(seq, "%3u.%u%% ", res / 10, res % 10); - /* if more than 1 GB display in MB */ - if (mdev->rs_total > 0x100000L) - seq_printf(seq, "(%lu/%lu)M\n\t", + /* if more than a few GB, display in MB */ + if (mdev->rs_total > (4UL << (30 - BM_BLOCK_SHIFT))) + seq_printf(seq, "(%lu/%lu)M", (unsigned long) Bit2KB(rs_left >> 10), (unsigned long) Bit2KB(mdev->rs_total >> 10)); else diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index d17f2ed777ce..be46084c254e 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -577,7 +577,7 @@ next_sector: size = BM_BLOCK_SIZE; bit = drbd_bm_find_next(mdev, mdev->bm_resync_fo); - if (bit == -1UL) { + if (bit == DRBD_END_OF_BITMAP) { mdev->bm_resync_fo = drbd_bm_bits(mdev); mdev->resync_work.cb = w_resync_inactive; put_ldev(mdev); -- cgit v1.2.3 From 6850c4421481139dc2cf982358e79c833a50d73c Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 16 Dec 2010 00:32:38 +0100 Subject: drbd: get rid of unused debug code Long time ago, we had paranoia code in the bitmap that allocated one extra word, assigned a magic value, and checked on every occasion that the magic value was still unchanged. That debug code is unused, the extra long word complicates code a bit. Get rid of it. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_bitmap.c | 39 +++++++++------------------------------ 1 file changed, 9 insertions(+), 30 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 0e31e573af72..09d208b858e7 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -488,10 +488,7 @@ static int bm_clear_surplus(struct drbd_bitmap *b) * on disk and in core memory alike */ mask = cpu_to_lel(mask); - /* because of the "extra long to catch oob access" we allocate in - * drbd_bm_resize, bm_number_of_pages -1 is not necessarily the page - * containing the last _relevant_ bitmap word */ - p_addr = bm_map_pidx(b, bm_bit_to_page_idx(b, b->bm_bits - 1)); + p_addr = bm_map_pidx(b, b->bm_number_of_pages - 1); bm = p_addr + (tmp/BITS_PER_LONG); if (mask) { /* If mask != 0, we are not exactly aligned, so bm now points @@ -527,10 +524,7 @@ static void bm_set_surplus(struct drbd_bitmap *b) * on disk and in core memory alike */ mask = cpu_to_lel(mask); - /* because of the "extra long to catch oob access" we allocate in - * drbd_bm_resize, bm_number_of_pages -1 is not necessarily the page - * containing the last _relevant_ bitmap word */ - p_addr = bm_map_pidx(b, bm_bit_to_page_idx(b, b->bm_bits - 1)); + p_addr = bm_map_pidx(b, b->bm_number_of_pages - 1); bm = p_addr + (tmp/BITS_PER_LONG); if (mask) { /* If mask != 0, we are not exactly aligned, so bm now points @@ -556,15 +550,10 @@ static unsigned long bm_count_bits(struct drbd_bitmap *b) unsigned long *p_addr; unsigned long bits = 0; unsigned long mask = (1UL << (b->bm_bits & BITS_PER_LONG_MASK)) -1; - int idx, last_page, i, last_word; - - /* because of the "extra long to catch oob access" we allocate in - * drbd_bm_resize, bm_number_of_pages -1 is not necessarily the page - * containing the last _relevant_ bitmap word */ - last_page = bm_bit_to_page_idx(b, b->bm_bits-1); + int idx, i, last_word; /* all but last page */ - for (idx = 0; idx < last_page; idx++) { + for (idx = 0; idx < b->bm_number_of_pages - 1; idx++) { p_addr = __bm_map_pidx(b, idx, KM_USER0); for (i = 0; i < LWPP; i++) bits += hweight_long(p_addr[i]); @@ -627,7 +616,7 @@ static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len) int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) { struct drbd_bitmap *b = mdev->bitmap; - unsigned long bits, words, owords, obits, *p_addr, *bm; + unsigned long bits, words, owords, obits; unsigned long want, have, onpages; /* number of pages */ struct page **npages, **opages = NULL; int err = 0, growing; @@ -681,8 +670,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) } } - /* one extra long to catch off by one errors */ - want = ALIGN((words+1)*sizeof(long), PAGE_SIZE) >> PAGE_SHIFT; + want = ALIGN(words*sizeof(long), PAGE_SIZE) >> PAGE_SHIFT; have = b->bm_number_of_pages; if (want == have) { D_ASSERT(b->bm_pages != NULL); @@ -728,11 +716,6 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) bm_free_pages(opages + want, have - want); } - p_addr = bm_map_pidx(b, bm_word_to_page_idx(b, words)); - bm = p_addr + MLPP(words); - *bm = DRBD_MAGIC; - bm_unmap(p_addr); - (void)bm_clear_surplus(b); spin_unlock_irq(&b->bm_lock); @@ -845,7 +828,6 @@ void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, size_t number, */ if (end == b->bm_words) b->bm_set -= bm_clear_surplus(b); - spin_unlock_irq(&b->bm_lock); } @@ -1030,7 +1012,7 @@ static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_id struct bm_aio_ctx ctx = { .flags = lazy_writeout_upper_idx ? BM_AIO_COPY_PAGES : 0 }; struct drbd_bitmap *b = mdev->bitmap; - int last_page, i, count = 0; + int num_pages, i, count = 0; unsigned long now; char ppb[10]; int err = 0; @@ -1046,10 +1028,7 @@ static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_id if (!ctx.flags) WARN_ON(!bm_is_locked(b)); - /* because of the "extra long to catch oob access" we allocate in - * drbd_bm_resize, bm_number_of_pages -1 is not necessarily the page - * containing the last _relevant_ bitmap word */ - last_page = bm_word_to_page_idx(b, b->bm_words - 1); + num_pages = b->bm_number_of_pages; now = jiffies; ctx.mdev = mdev; @@ -1058,7 +1037,7 @@ static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_id ctx.error = 0; /* let the layers below us try to merge these bios... */ - for (i = 0; i <= last_page; i++) { + for (i = 0; i < num_pages; i++) { /* ignore completely unchanged pages */ if (lazy_writeout_upper_idx && i == lazy_writeout_upper_idx) break; -- cgit v1.2.3 From 84e7c0f7d123d64d97e1f789ad2f23a72fe8981f Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 16 Dec 2010 00:37:57 +0100 Subject: drbd: Removed a reference to debug macros removed long time ago Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_bitmap.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 09d208b858e7..423dede45844 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -596,9 +596,8 @@ static void bm_memset(struct drbd_bitmap *b, size_t offset, int c, size_t len) if (bm+do_now > p_addr + LWPP) { printk(KERN_ALERT "drbd: BUG BUG BUG! p_addr:%p bm:%p do_now:%d\n", p_addr, bm, (int)do_now); - break; /* breaks to after catch_oob_access_end() only! */ - } - memset(bm, c, do_now * sizeof(long)); + } else + memset(bm, c, do_now * sizeof(long)); bm_unmap(p_addr); bm_set_page_need_writeout(b->bm_pages[idx]); offset += do_now; -- cgit v1.2.3 From 02851e9f00d78dbc8ded0aacbf9bf3b631d627b3 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 16 Dec 2010 14:47:39 +0100 Subject: drbd: move bitmap write from resync_finished to after_state_change We must not call it directly from resync_finished, as we may be in either receiver or worker context there. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 14 ++++++++++---- drivers/block/drbd/drbd_worker.c | 3 --- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 57ed7181742d..c6c7e3e6dc23 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1548,6 +1548,9 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, if (os.disk < D_UP_TO_DATE && os.conn >= C_SYNC_SOURCE && ns.conn == C_CONNECTED) drbd_send_state(mdev); + if (os.conn > C_CONNECTED && ns.conn == C_CONNECTED) + drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL, "write from resync_finished"); + /* free tl_hash if we Got thawed and are C_STANDALONE */ if (ns.conn == C_STANDALONE && !is_susp(ns) && mdev->tl_hash) drbd_free_tl_hash(mdev); @@ -3860,13 +3863,16 @@ int drbd_bmio_clear_n_write(struct drbd_conf *mdev) static int w_bitmap_io(struct drbd_conf *mdev, struct drbd_work *w, int unused) { struct bm_io_work *work = container_of(w, struct bm_io_work, w); - int rv; + int rv = -EIO; D_ASSERT(atomic_read(&mdev->ap_bio_cnt) == 0); - drbd_bm_lock(mdev, work->why); - rv = work->io_fn(mdev); - drbd_bm_unlock(mdev); + if (get_ldev(mdev)) { + drbd_bm_lock(mdev, work->why); + rv = work->io_fn(mdev); + drbd_bm_unlock(mdev); + put_ldev(mdev); + } clear_bit(BITMAP_IO, &mdev->flags); smp_mb__after_clear_bit(); diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index be46084c254e..2374454cdf17 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -907,9 +907,6 @@ out: drbd_md_sync(mdev); - dev_info(DEV, "Writing changed bitmap pages\n"); - drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL, "write from resync_finished"); - if (khelper_cmd) drbd_khelper(mdev, khelper_cmd); -- cgit v1.2.3 From 2265b473aecc1a6fe1f84a0ee272ba39806c2a8a Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 16 Dec 2010 15:41:26 +0100 Subject: drbd: fix potential dereference of NULL pointer If drbd used to have crypto digest algorithms configured, then is being unconfigured (but not unloaded), it frees the algorithms, but does not reset the config. If it then is reconfigured to use the very same algorithm, it "forgot" to re-allocate the algorithms, thinking that the config has not changed in that aspect. It will then Oops on the first attempt to actually use those algorithms. Fix this by resetting the config to defaults after cleanup. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index c6c7e3e6dc23..4da6f11cc82e 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -3020,6 +3020,8 @@ void drbd_mdev_cleanup(struct drbd_conf *mdev) D_ASSERT(list_empty(&mdev->resync_work.list)); D_ASSERT(list_empty(&mdev->unplug_work.list)); D_ASSERT(list_empty(&mdev->go_diskless.list)); + + drbd_set_defaults(mdev); } -- cgit v1.2.3 From c88d65e2231dbae4b7cd0ad7b2a919857a1be171 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 20 Dec 2010 15:29:28 +0100 Subject: drbd: Documenting drbd_should_do_remote() and drbd_should_send_oos() Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_req.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 528909090df7..889175110c91 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -762,7 +762,7 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr); } -static int drbd_should_do_remote(struct drbd_conf *mdev) +static bool drbd_should_do_remote(struct drbd_conf *mdev) { union drbd_state s = mdev->state; @@ -770,13 +770,17 @@ static int drbd_should_do_remote(struct drbd_conf *mdev) (s.pdsk >= D_INCONSISTENT && s.conn >= C_WF_BITMAP_T && s.conn < C_AHEAD); + /* Before proto 96 that was >= CONNECTED instead of >= C_WF_BITMAP_T. + That is equivalent since before 96 IO was frozen in the C_WF_BITMAP* + states. */ } -static int drbd_should_send_oos(struct drbd_conf *mdev) +static bool drbd_should_send_oos(struct drbd_conf *mdev) { union drbd_state s = mdev->state; - return s.pdsk >= D_INCONSISTENT && - (s.conn == C_AHEAD || s.conn == C_WF_BITMAP_S); + return s.conn == C_AHEAD || s.conn == C_WF_BITMAP_S; + /* pdsk = D_INCONSISTENT as a consequence. Protocol 96 check not necessary + since we enter state C_AHEAD only if proto >= 96 */ } static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time) -- cgit v1.2.3 From f735e3635430c6d1c319664d82b34376e3f9aa17 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 17 Dec 2010 21:06:18 +0100 Subject: drbd: add debugging assert to make sure the protocol is clean We expect to only receive the recently introduced "set out of sync" packets in specific states. If we receive them in different states, that may confuse the resync process to the point where it won't terminate, or think it made negative progress. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index be7fc67eeeca..f0a0f66fbe68 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3599,6 +3599,16 @@ static int receive_out_of_sync(struct drbd_conf *mdev, enum drbd_packets cmd, un { struct p_block_desc *p = &mdev->data.rbuf.block_desc; + switch (mdev->state.conn) { + case C_WF_SYNC_UUID: + case C_WF_BITMAP_T: + case C_BEHIND: + break; + default: + dev_err(DEV, "ASSERT FAILED cstate = %s, expected: WFSyncUUID|WFBitMapT|Behind\n", + drbd_conn_str(mdev->state.conn)); + } + drbd_set_out_of_sync(mdev, be64_to_cpu(p->sector), be32_to_cpu(p->blksize)); return true; -- cgit v1.2.3 From 5a22db8968a69bec835d1ed9a96ab3381719e0c0 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 17 Dec 2010 21:14:23 +0100 Subject: drbd: serialize sending of resync uuid with pending w_send_oos To improve the latency of IO requests during bitmap exchange, we recently allowed writes while waiting for the bitmap, sending "set out-of-sync" information packets for any newly dirtied bits. We have to make sure that the new resync-uuid does not overtake these "set oos" packets. Once the resync-uuid is received, the sync target starts the resync process, and expects the bitmap to only be cleared, not re-set. If we use this protocol extension, we queue the generation and sending of the resync-uuid on the worker, which naturally serializes with all previously queued packets. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 2 +- drivers/block/drbd/drbd_main.c | 22 +++++++++++++++++++--- drivers/block/drbd/drbd_worker.c | 27 ++++++++++++++------------- 3 files changed, 34 insertions(+), 17 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 5a2d0ec72b34..ec06e744be42 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1204,7 +1204,7 @@ extern int drbd_send(struct drbd_conf *mdev, struct socket *sock, extern int drbd_send_protocol(struct drbd_conf *mdev); extern int drbd_send_uuids(struct drbd_conf *mdev); extern int drbd_send_uuids_skip_initial_sync(struct drbd_conf *mdev); -extern int drbd_send_sync_uuid(struct drbd_conf *mdev, u64 val); +extern int drbd_gen_and_send_sync_uuid(struct drbd_conf *mdev); extern int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags flags); extern int _drbd_send_state(struct drbd_conf *mdev); extern int drbd_send_state(struct drbd_conf *mdev); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 4da6f11cc82e..2190064d59bd 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1387,6 +1387,17 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, spin_unlock_irq(&mdev->req_lock); } + /* Became sync source. With protocol >= 96, we still need to send out + * the sync uuid now. Need to do that before any drbd_send_state, or + * the other side may go "paused sync" before receiving the sync uuids, + * which is unexpected. */ + if ((os.conn != C_SYNC_SOURCE && os.conn != C_PAUSED_SYNC_S) && + (ns.conn == C_SYNC_SOURCE || ns.conn == C_PAUSED_SYNC_S) && + mdev->agreed_pro_version >= 96 && get_ldev(mdev)) { + drbd_gen_and_send_sync_uuid(mdev); + put_ldev(mdev); + } + /* Do not change the order of the if above and the two below... */ if (os.pdsk == D_DISKLESS && ns.pdsk > D_DISKLESS) { /* attach on the peer */ drbd_send_uuids(mdev); @@ -1980,12 +1991,17 @@ int drbd_send_uuids_skip_initial_sync(struct drbd_conf *mdev) return _drbd_send_uuids(mdev, 8); } - -int drbd_send_sync_uuid(struct drbd_conf *mdev, u64 val) +int drbd_gen_and_send_sync_uuid(struct drbd_conf *mdev) { struct p_rs_uuid p; + u64 uuid; + + D_ASSERT(mdev->state.disk == D_UP_TO_DATE); - p.uuid = cpu_to_be64(val); + get_random_bytes(&uuid, sizeof(u64)); + drbd_uuid_set(mdev, UI_BITMAP, uuid); + drbd_md_sync(mdev); + p.uuid = cpu_to_be64(uuid); return drbd_send_cmd(mdev, USE_DATA_SOCKET, P_SYNC_UUID, (struct p_header80 *)&p, sizeof(p)); diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 2374454cdf17..3df37e65c118 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1516,18 +1516,6 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) return; } - if (side == C_SYNC_TARGET) { - mdev->bm_resync_fo = 0; - } else /* side == C_SYNC_SOURCE */ { - u64 uuid; - - get_random_bytes(&uuid, sizeof(u64)); - drbd_uuid_set(mdev, UI_BITMAP, uuid); - drbd_send_sync_uuid(mdev, uuid); - - D_ASSERT(mdev->state.disk == D_UP_TO_DATE); - } - write_lock_irq(&global_state_lock); ns = mdev->state; @@ -1565,7 +1553,19 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) _drbd_pause_after(mdev); } write_unlock_irq(&global_state_lock); - put_ldev(mdev); + + if (side == C_SYNC_TARGET) + mdev->bm_resync_fo = 0; + + /* Since protocol 96, we must serialize drbd_gen_and_send_sync_uuid + * with w_send_oos, or the sync target will get confused as to + * how much bits to resync. We cannot do that always, because for an + * empty resync and protocol < 95, we need to do it here, as we call + * drbd_resync_finished from here in that case. + * We drbd_gen_and_send_sync_uuid here for protocol < 96, + * and from after_state_ch otherwise. */ + if (side == C_SYNC_SOURCE && mdev->agreed_pro_version < 96) + drbd_gen_and_send_sync_uuid(mdev); if (r == SS_SUCCESS) { dev_info(DEV, "Began resync as %s (will sync %lu KB [%lu bits set]).\n", @@ -1601,6 +1601,7 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) drbd_md_sync(mdev); } + put_ldev(mdev); drbd_state_unlock(mdev); } -- cgit v1.2.3 From 7648cdfe52daf0ca4fa9489879dea9e089b0dfe1 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 17 Dec 2010 23:58:41 +0100 Subject: drbd: be less noisy with some log messages We expect changes to a bitmap page in drbd_bm_write_page, that's why we submit a copy page. If a page changes during global writeout, that would be unexpected, and reason to warn, though. Also, often page writeout can be skipped (on activity log transactions during normal operation, for example), no need to log that everytime. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_bitmap.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 423dede45844..314a3632303b 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -920,8 +920,9 @@ static void bm_async_io_complete(struct bio *bio, int error) if (!error && !uptodate) error = -EIO; - if (!bm_test_page_unchanged(b->bm_pages[idx])) - dev_info(DEV, "bitmap page idx %u changed during IO!\n", idx); + if ((ctx->flags & BM_AIO_COPY_PAGES) == 0 && + !bm_test_page_unchanged(b->bm_pages[idx])) + dev_warn(DEV, "bitmap page idx %u changed during IO!\n", idx); if (error) { /* ctx error will hold the completed-last non-zero error code, @@ -1135,7 +1136,7 @@ int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(loc struct bm_aio_ctx ctx = { .flags = BM_AIO_COPY_PAGES, }; if (bm_test_page_unchanged(mdev->bitmap->bm_pages[idx])) { - dev_info(DEV, "skipped bm page write for idx %u\n", idx); + dynamic_dev_dbg(DEV, "skipped bm page write for idx %u\n", idx); return 0; } -- cgit v1.2.3 From 418e0a927d520f9c8e875ea75abee35d93a0f1b3 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Sat, 18 Dec 2010 13:36:54 +0100 Subject: drbd: spelling fix in log message Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 2190064d59bd..f529c25e1ad5 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1351,7 +1351,7 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, if (ns.conn == C_CONNECTED) what = resend, nsm.susp_nod = 0; else /* ns.conn > C_CONNECTED */ - dev_err(DEV, "Unexpected Resynd going on!\n"); + dev_err(DEV, "Unexpected Resync going on!\n"); } if (os.disk == D_ATTACHING && ns.disk > D_ATTACHING) -- cgit v1.2.3 From 06d33e968d2c58143a7aaafa8963cf6a58099467 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Sat, 18 Dec 2010 17:00:59 +0100 Subject: drbd: improve on bitmap write out timing Even though we now track the need for bitmap writeout per bitmap page, there is no need to trigger the writeout while a resync is going on. Once the resync is finished (or aborted), we trigger bitmap writeout anyways. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index f529c25e1ad5..755297a15633 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1439,7 +1439,11 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, put_ldev(mdev); } - if (os.role == R_PRIMARY && ns.role == R_SECONDARY && get_ldev(mdev)) { + /* Write out all changed bits on demote. + * Though, no need to da that just yet + * if there is a resync going on still */ + if (os.role == R_PRIMARY && ns.role == R_SECONDARY && + mdev->state.conn <= C_CONNECTED && get_ldev(mdev)) { drbd_bitmap_io_from_worker(mdev, &drbd_bm_write, "demote"); put_ldev(mdev); } @@ -1559,7 +1563,7 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, if (os.disk < D_UP_TO_DATE && os.conn >= C_SYNC_SOURCE && ns.conn == C_CONNECTED) drbd_send_state(mdev); - if (os.conn > C_CONNECTED && ns.conn == C_CONNECTED) + if (os.conn > C_CONNECTED && ns.conn <= C_CONNECTED) drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL, "write from resync_finished"); /* free tl_hash if we Got thawed and are C_STANDALONE */ -- cgit v1.2.3 From 725a97e43ee945cc813fffd9e628e50d703b973b Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Sun, 19 Dec 2010 11:29:55 +0100 Subject: drbd: fix potential access of on-stack wait_queue_head_t after return I run into something declaring itself as "spinlock deadlock", BUG: spinlock lockup on CPU#1, kjournald/27816, ffff88000ad6bca0 Pid: 27816, comm: kjournald Tainted: G W 2.6.34.6 #2 Call Trace: <IRQ> [<ffffffff811ba0aa>] do_raw_spin_lock+0x11e/0x14d [<ffffffff81340fde>] _raw_spin_lock_irqsave+0x6a/0x81 [<ffffffff8103b694>] ? __wake_up+0x22/0x50 [<ffffffff8103b694>] __wake_up+0x22/0x50 [<ffffffffa07ff661>] bm_async_io_complete+0x258/0x299 [drbd] but the call traces do not fit at all, all other cpus are cpu_idle. I think it may be this race: drbd_bm_write_page wait_queue_head_t io_wait; atomic_t in_flight; bm_async_io submit_bio bm_async_io_complete if (atomic_dec_and_test(in_flight)) wait_event(io_wait, atomic_read(in_flight) == 0) return wake_up(io_wait) The wake_up now accesses the wait_queue_head_t spinlock, which is no longer valid, since the stack frame of drbd_bm_write_page has been clobbered now. Fix this by using struct completion, which does both the condition test as well as the wake_up inside its spinlock, so this race cannot happen. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_bitmap.c | 38 ++++++++++++++++++++++---------------- 1 file changed, 22 insertions(+), 16 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 314a3632303b..25428bc28476 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -897,7 +897,7 @@ void drbd_bm_clear_all(struct drbd_conf *mdev) struct bm_aio_ctx { struct drbd_conf *mdev; atomic_t in_flight; - wait_queue_head_t io_wait; + struct completion done; unsigned flags; #define BM_AIO_COPY_PAGES 1 int error; @@ -948,7 +948,7 @@ static void bm_async_io_complete(struct bio *bio, int error) bio_put(bio); if (atomic_dec_and_test(&ctx->in_flight)) - wake_up(&ctx->io_wait); + complete(&ctx->done); } static void bm_page_io_async(struct bm_aio_ctx *ctx, int page_nr, int rw) __must_hold(local) @@ -1009,8 +1009,12 @@ static void bm_page_io_async(struct bm_aio_ctx *ctx, int page_nr, int rw) __must */ static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_idx) __must_hold(local) { - struct bm_aio_ctx ctx = - { .flags = lazy_writeout_upper_idx ? BM_AIO_COPY_PAGES : 0 }; + struct bm_aio_ctx ctx = { + .mdev = mdev, + .in_flight = ATOMIC_INIT(1), + .done = COMPLETION_INITIALIZER_ONSTACK(ctx.done), + .flags = lazy_writeout_upper_idx ? BM_AIO_COPY_PAGES : 0, + }; struct drbd_bitmap *b = mdev->bitmap; int num_pages, i, count = 0; unsigned long now; @@ -1031,10 +1035,6 @@ static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_id num_pages = b->bm_number_of_pages; now = jiffies; - ctx.mdev = mdev; - atomic_set(&ctx.in_flight, 1); /* one extra ref */ - init_waitqueue_head(&ctx.io_wait); - ctx.error = 0; /* let the layers below us try to merge these bios... */ for (i = 0; i < num_pages; i++) { @@ -1060,8 +1060,13 @@ static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_id cond_resched(); } - atomic_dec(&ctx.in_flight); /* drop the extra ref */ - wait_event(ctx.io_wait, atomic_read(&ctx.in_flight) == 0); + /* + * We initialize ctx.in_flight to one to make sure bm_async_io_complete + * will not complete() early, and decrement / test it here. If there + * are still some bios in flight, we need to wait for them here. + */ + if (!atomic_dec_and_test(&ctx.in_flight)) + wait_for_completion(&ctx.done); dev_info(DEV, "bitmap %s of %u pages took %lu jiffies\n", rw == WRITE ? "WRITE" : "READ", count, jiffies - now); @@ -1133,19 +1138,20 @@ int drbd_bm_write_lazy(struct drbd_conf *mdev, unsigned upper_idx) __must_hold(l */ int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(local) { - struct bm_aio_ctx ctx = { .flags = BM_AIO_COPY_PAGES, }; + struct bm_aio_ctx ctx = { + .mdev = mdev, + .in_flight = ATOMIC_INIT(1), + .done = COMPLETION_INITIALIZER_ONSTACK(ctx.done), + .flags = BM_AIO_COPY_PAGES, + }; if (bm_test_page_unchanged(mdev->bitmap->bm_pages[idx])) { dynamic_dev_dbg(DEV, "skipped bm page write for idx %u\n", idx); return 0; } - ctx.mdev = mdev; - atomic_set(&ctx.in_flight, 1); - init_waitqueue_head(&ctx.io_wait); - bm_page_io_async(&ctx, idx, WRITE_SYNC); - wait_event(ctx.io_wait, atomic_read(&ctx.in_flight) == 0); + wait_for_completion(&ctx.done); if (ctx.error) drbd_chk_io_error(mdev, 1, true); -- cgit v1.2.3 From 3f98688afc2ce0138fc88e272bdd128e1e0b0976 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 20 Dec 2010 14:48:20 +0100 Subject: drbd: There might be a resync after unfreezing IO due to no disk [Bugz 332] When on-no-data-accessible is set to suspend-io, also consider that a Primary, SyncTarget node losses its connection. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 755297a15633..9bd53cf2cdb2 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1347,16 +1347,14 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, nsm.i = -1; if (ns.susp_nod) { - if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED) { - if (ns.conn == C_CONNECTED) - what = resend, nsm.susp_nod = 0; - else /* ns.conn > C_CONNECTED */ - dev_err(DEV, "Unexpected Resync going on!\n"); - } + if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED) + what = resend; if (os.disk == D_ATTACHING && ns.disk > D_ATTACHING) - what = restart_frozen_disk_io, nsm.susp_nod = 0; + what = restart_frozen_disk_io; + if (what != nothing) + nsm.susp_nod = 0; } if (ns.susp_fen) { -- cgit v1.2.3 From 071942727824bab03b1a3f6b6eeb5b269697b333 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Mon, 20 Dec 2010 15:38:07 +0100 Subject: drbd: ratelimit io error messages Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_worker.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 3df37e65c118..7bfeb79e7105 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -165,14 +165,15 @@ void drbd_endio_sec(struct bio *bio, int error) int uptodate = bio_flagged(bio, BIO_UPTODATE); int is_write = bio_data_dir(bio) == WRITE; - if (error) + if (error && __ratelimit(&drbd_ratelimit_state)) dev_warn(DEV, "%s: error=%d s=%llus\n", is_write ? "write" : "read", error, (unsigned long long)e->sector); if (!error && !uptodate) { - dev_warn(DEV, "%s: setting error to -EIO s=%llus\n", - is_write ? "write" : "read", - (unsigned long long)e->sector); + if (__ratelimit(&drbd_ratelimit_state)) + dev_warn(DEV, "%s: setting error to -EIO s=%llus\n", + is_write ? "write" : "read", + (unsigned long long)e->sector); /* strange behavior of some lower level drivers... * fail the request by clearing the uptodate flag, * but do not return any error?! */ -- cgit v1.2.3 From 617049aa7d753e8c821ac77126ab90e9f1b66d6d Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Wed, 22 Dec 2010 12:48:31 +0100 Subject: drbd: Fixed an issue with AHEAD -> SYNC_SOURCE transitions Create a new barrier when leaving the AHEAD mode. Otherwise we trigger the assertion in req_mod(, barrier_acked) D_ASSERT(req->rq_state & RQ_NET_SENT); The new barrier is created by recycling the newest existing one. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 9bd53cf2cdb2..90050ab7adf3 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -335,6 +335,24 @@ bail: drbd_force_state(mdev, NS(conn, C_PROTOCOL_ERROR)); } + +/* In C_AHEAD mode only out_of_sync packets are sent for requests. Detach + * those requests from the newsest barrier when changing to an other cstate. + * + * That headless list vanishes when the last request finished its write or + * send out_of_sync packet. */ +static void tl_forget(struct drbd_conf *mdev) +{ + struct drbd_tl_epoch *b; + + if (test_bit(CREATE_BARRIER, &mdev->flags)) + return; + + b = mdev->newest_tle; + list_del(&b->requests); + _tl_add_barrier(mdev, b); +} + /** * _tl_restart() - Walks the transfer log, and applies an action to all requests * @mdev: DRBD device. @@ -1242,6 +1260,9 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns, if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED) drbd_resume_al(mdev); + if (os.conn == C_AHEAD && ns.conn != C_AHEAD) + tl_forget(mdev); + ascw = kmalloc(sizeof(*ascw), GFP_ATOMIC); if (ascw) { ascw->os = os; -- cgit v1.2.3 From d612d309e4c8401ad94c531678b59c4a8b7c41ce Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 27 Dec 2010 10:53:28 +0100 Subject: drbd: No longer answer P_RS_DATA_REQUEST packets when in C_AHEAD mode When the sync source node replies to a P_RS_DATA_REQUEST packet when it is already in ahead mode. I.e. those two packets crossed each other on the wire, that may lead to diverging bitmaps. This never happens in a well-tuned-system. In a well-tuned- system the resync controller has reduced the resync speed to zero long before we got into ahead-mode. But we have to be prepared for the not-well-tuned-system of course as well. Because -> diverging bitmaps = non terminating resync. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 3 ++- drivers/block/drbd/drbd_receiver.c | 12 +++++++++++- drivers/block/drbd/drbd_worker.c | 4 +++- 3 files changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index ec06e744be42..a529285b0cd3 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -205,8 +205,9 @@ enum drbd_packets { /* P_CKPT_DISABLE_REQ = 0x26, * currently reserved for protocol D */ P_DELAY_PROBE = 0x27, /* is used on BOTH sockets */ P_OUT_OF_SYNC = 0x28, /* Mark as out of sync (Outrunning), data socket */ + P_RS_CANCEL = 0x29, /* meta: Used to cancel RS_DATA_REQUEST packet by SyncSource */ - P_MAX_CMD = 0x28, + P_MAX_CMD = 0x2A, P_MAY_IGNORE = 0x100, /* Flag to test if (cmd > P_MAY_IGNORE) ... */ P_MAX_OPT_CMD = 0x101, diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index f0a0f66fbe68..bf865bd83414 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -4361,7 +4361,16 @@ static int got_NegRSDReply(struct drbd_conf *mdev, struct p_header80 *h) if (get_ldev_if_state(mdev, D_FAILED)) { drbd_rs_complete_io(mdev, sector); - drbd_rs_failed_io(mdev, sector, size); + switch (be16_to_cpu(h->command)) { + case P_NEG_RS_DREPLY: + drbd_rs_failed_io(mdev, sector, size); + case P_RS_CANCEL: + break; + default: + D_ASSERT(0); + put_ldev(mdev); + return false; + } put_ldev(mdev); } @@ -4459,6 +4468,7 @@ static struct asender_cmd *get_asender_cmd(int cmd) [P_STATE_CHG_REPLY] = { sizeof(struct p_req_state_reply), got_RqSReply }, [P_RS_IS_IN_SYNC] = { sizeof(struct p_block_ack), got_IsInSync }, [P_DELAY_PROBE] = { sizeof(struct p_delay_probe93), got_skip }, + [P_RS_CANCEL] = { sizeof(struct p_block_ack), got_NegRSDReply}, [P_MAX_CMD] = { 0, NULL }, }; if (cmd > P_MAX_CMD || asender_tbl[cmd].process == NULL) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 7bfeb79e7105..1d7510ebaa43 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -988,7 +988,9 @@ int w_e_end_rsdata_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel) put_ldev(mdev); } - if (likely((e->flags & EE_WAS_ERROR) == 0)) { + if (mdev->state.conn == C_AHEAD) { + ok = drbd_send_ack(mdev, P_RS_CANCEL, e); + } else if (likely((e->flags & EE_WAS_ERROR) == 0)) { if (likely(mdev->state.pdsk >= D_INCONSISTENT)) { inc_rs_pending(mdev); ok = drbd_send_block(mdev, P_RS_DATA_REPLY, e); -- cgit v1.2.3 From da0a78161d2b2da4819a1f05a38bb1dcbe02d951 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Thu, 23 Dec 2010 14:24:33 +0100 Subject: drbd: Be more careful with SyncSource -> Ahead transitions We may not get from SyncSource to Ahead if we have sent some P_RS_DATA_REPLY packets to the peer and are waiting for P_WRITE_ACK. Again, this is not relevant for proper tuned systems, but makes sure that the not-tuned system does not get diverging bitmaps. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 3 ++- drivers/block/drbd/drbd_req.c | 8 +++++++- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index bf865bd83414..fd0957f9c230 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -4385,10 +4385,11 @@ static int got_BarrierAck(struct drbd_conf *mdev, struct p_header80 *h) if (mdev->state.conn == C_AHEAD && atomic_read(&mdev->ap_in_flight) == 0 && + atomic_read(&mdev->rs_pending_cnt) == 0 && list_empty(&mdev->start_resync_work.list)) { struct drbd_work *w = &mdev->start_resync_work; w->cb = w_start_resync; - drbd_queue_work_front(&mdev->data.work, w); + drbd_queue_work(&mdev->data.work, w); } return true; diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 889175110c91..a3f6b04ebaba 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1002,7 +1002,13 @@ allocate_barrier: congested = 1; } - if (congested) { + if (congested && atomic_read(&mdev->rs_pending_cnt) == 0) { + /* rs_pending_cnt must be zero, otherwise the two peers + might get different bitmaps. With sane configurations + the resync stalls long before we might want to go into + AHEAD mode. + We could force the resync into PAUSE mode here if + rs_pending_cnt is > 0 ... */ queue_barrier(mdev); if (mdev->net_conf->on_congestion == OC_PULL_AHEAD) -- cgit v1.2.3 From 794abb753e29e85949b3719dbc2ab6a98711a47e Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 27 Dec 2010 11:51:23 +0100 Subject: drbd: Cleaned up the resync timer logic Besides removed a few lines of code, this moves the inspection of the state from before the queuing process to after the queuing. I.e. more closely to the actual invocation of the work. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 2 +- drivers/block/drbd/drbd_main.c | 2 +- drivers/block/drbd/drbd_worker.c | 48 +++++++++------------------------------- 3 files changed, 13 insertions(+), 39 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index a529285b0cd3..dc11b7070ba9 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1540,7 +1540,7 @@ extern int w_e_end_csum_rs_req(struct drbd_conf *, struct drbd_work *, int); extern int w_e_end_ov_reply(struct drbd_conf *, struct drbd_work *, int); extern int w_e_end_ov_req(struct drbd_conf *, struct drbd_work *, int); extern int w_ov_finished(struct drbd_conf *, struct drbd_work *, int); -extern int w_resync_inactive(struct drbd_conf *, struct drbd_work *, int); +extern int w_resync_timer(struct drbd_conf *, struct drbd_work *, int); extern int w_resume_next_sg(struct drbd_conf *, struct drbd_work *, int); extern int w_send_write_hint(struct drbd_conf *, struct drbd_work *, int); extern int w_send_dblock(struct drbd_conf *, struct drbd_work *, int); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 90050ab7adf3..4074d6699307 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2978,7 +2978,7 @@ void drbd_init_set_defaults(struct drbd_conf *mdev) INIT_LIST_HEAD(&mdev->start_resync_work.list); INIT_LIST_HEAD(&mdev->bm_io_work.w.list); - mdev->resync_work.cb = w_resync_inactive; + mdev->resync_work.cb = w_resync_timer; mdev->unplug_work.cb = w_send_write_hint; mdev->go_diskless.cb = w_go_diskless; mdev->md_sync_work.cb = w_md_sync; diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 1d7510ebaa43..147f76b26810 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -253,13 +253,6 @@ int w_read_retry_remote(struct drbd_conf *mdev, struct drbd_work *w, int cancel) return w_send_read_req(mdev, w, 0); } -int w_resync_inactive(struct drbd_conf *mdev, struct drbd_work *w, int cancel) -{ - ERR_IF(cancel) return 1; - dev_err(DEV, "resync inactive, but callback triggered??\n"); - return 1; /* Simply ignore this! */ -} - void drbd_csum_ee(struct drbd_conf *mdev, struct crypto_hash *tfm, struct drbd_epoch_entry *e, void *digest) { struct hash_desc desc; @@ -389,26 +382,25 @@ defer: return -EAGAIN; } -void resync_timer_fn(unsigned long data) +int w_resync_timer(struct drbd_conf *mdev, struct drbd_work *w, int cancel) { - struct drbd_conf *mdev = (struct drbd_conf *) data; - int queue; - - queue = 1; switch (mdev->state.conn) { case C_VERIFY_S: - mdev->resync_work.cb = w_make_ov_request; + w_make_ov_request(mdev, w, cancel); break; case C_SYNC_TARGET: - mdev->resync_work.cb = w_make_resync_request; + w_make_resync_request(mdev, w, cancel); break; - default: - queue = 0; - mdev->resync_work.cb = w_resync_inactive; } - /* harmless race: list_empty outside data.work.q_lock */ - if (list_empty(&mdev->resync_work.list) && queue) + return 1; +} + +void resync_timer_fn(unsigned long data) +{ + struct drbd_conf *mdev = (struct drbd_conf *) data; + + if (list_empty(&mdev->resync_work.list)) drbd_queue_work(&mdev->data.work, &mdev->resync_work); } @@ -525,15 +517,6 @@ static int w_make_resync_request(struct drbd_conf *mdev, if (unlikely(cancel)) return 1; - if (unlikely(mdev->state.conn < C_CONNECTED)) { - dev_err(DEV, "Confused in w_make_resync_request()! cstate < Connected"); - return 0; - } - - if (mdev->state.conn != C_SYNC_TARGET) - dev_err(DEV, "%s in w_make_resync_request\n", - drbd_conn_str(mdev->state.conn)); - if (mdev->rs_total == 0) { /* empty resync? */ drbd_resync_finished(mdev); @@ -546,7 +529,6 @@ static int w_make_resync_request(struct drbd_conf *mdev, to continue resync with a broken disk makes no sense at all */ dev_err(DEV, "Disk broke down during resync!\n"); - mdev->resync_work.cb = w_resync_inactive; return 1; } @@ -580,7 +562,6 @@ next_sector: if (bit == DRBD_END_OF_BITMAP) { mdev->bm_resync_fo = drbd_bm_bits(mdev); - mdev->resync_work.cb = w_resync_inactive; put_ldev(mdev); return 1; } @@ -676,7 +657,6 @@ next_sector: * resync data block, and the last bit is cleared. * until then resync "work" is "inactive" ... */ - mdev->resync_work.cb = w_resync_inactive; put_ldev(mdev); return 1; } @@ -697,17 +677,11 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca if (unlikely(cancel)) return 1; - if (unlikely(mdev->state.conn < C_CONNECTED)) { - dev_err(DEV, "Confused in w_make_ov_request()! cstate < Connected"); - return 0; - } - number = drbd_rs_number_requests(mdev); sector = mdev->ov_position; for (i = 0; i < number; i++) { if (sector >= capacity) { - mdev->resync_work.cb = w_resync_inactive; return 1; } -- cgit v1.2.3 From 110a204a354a5a69f99ed0bc8e6d779e6a94d410 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Mon, 3 Jan 2011 15:47:08 +0100 Subject: drbd: Remove useless / wrong comments Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index dc11b7070ba9..84b4575fdf43 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -680,13 +680,6 @@ static inline enum drbd_thread_state get_t_state(struct drbd_thread *thi) return thi->t_state; } - -/* - * Having this as the first member of a struct provides sort of "inheritance". - * "derived" structs can be "drbd_queue_work()"ed. - * The callback should know and cast back to the descendant struct. - * drbd_request and drbd_epoch_entry are descendants of drbd_work. - */ struct drbd_work; typedef int (*drbd_work_cb)(struct drbd_conf *, struct drbd_work *, int cancel); struct drbd_work { @@ -715,9 +708,6 @@ struct drbd_request { * starting a new epoch... */ - /* up to here, the struct layout is identical to drbd_epoch_entry; - * we might be able to use that to our advantage... */ - struct list_head tl_requests; /* ring list in the transfer log */ struct bio *master_bio; /* master bio pointer */ unsigned long rq_state; /* see comments above _req_mod() */ -- cgit v1.2.3 From 2b8a90b55533c66258a1ff0fb27b8cffa95665c4 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 10 Jan 2011 11:15:17 +0100 Subject: drbd: Corrected off-by-one error in DRBD_MINOR_COUNT_MAX Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 7 ++++--- include/linux/drbd_limits.h | 3 ++- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 4074d6699307..da98bff7c333 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -85,7 +85,8 @@ MODULE_AUTHOR("Philipp Reisner <phil@linbit.com>, " MODULE_DESCRIPTION("drbd - Distributed Replicated Block Device v" REL_VERSION); MODULE_VERSION(REL_VERSION); MODULE_LICENSE("GPL"); -MODULE_PARM_DESC(minor_count, "Maximum number of drbd devices (1-255)"); +MODULE_PARM_DESC(minor_count, "Maximum number of drbd devices (" + __stringify(DRBD_MINOR_COUNT_MIN) "-" __stringify(DRBD_MINOR_COUNT_MAX) ")"); MODULE_ALIAS_BLOCKDEV_MAJOR(DRBD_MAJOR); #include <linux/moduleparam.h> @@ -115,7 +116,7 @@ module_param(fault_devs, int, 0644); #endif /* module parameter, defined */ -unsigned int minor_count = 32; +unsigned int minor_count = DRBD_MINOR_COUNT_DEF; int disable_sendpage; int allow_oos; unsigned int cn_idx = CN_IDX_DRBD; @@ -3456,7 +3457,7 @@ int __init drbd_init(void) return -EINVAL; } - if (1 > minor_count || minor_count > 255) { + if (minor_count < DRBD_MINOR_COUNT_MIN || minor_count > DRBD_MINOR_COUNT_MAX) { printk(KERN_ERR "drbd: invalid minor_count (%d)\n", minor_count); #ifdef MODULE diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h index abf418724e52..bb264a5732de 100644 --- a/include/linux/drbd_limits.h +++ b/include/linux/drbd_limits.h @@ -16,7 +16,8 @@ #define DEBUG_RANGE_CHECK 0 #define DRBD_MINOR_COUNT_MIN 1 -#define DRBD_MINOR_COUNT_MAX 255 +#define DRBD_MINOR_COUNT_MAX 256 +#define DRBD_MINOR_COUNT_DEF 32 #define DRBD_DIALOG_REFRESH_MIN 0 #define DRBD_DIALOG_REFRESH_MAX 600 -- cgit v1.2.3 From 4a23f2649698272abcd9e0c9a992d65739f32792 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Tue, 11 Jan 2011 17:42:17 +0100 Subject: drbd: Do not full sync if a P_SYNC_UUID packet gets lost See also commit from 2009-08-15 "drbd_uuid_compare(): Do not full sync in case a P_SYNC_UUID packet gets lost." We saw cases where the History UUIDs where not as expected. So the detection of the special case did not trigger. With the sync UUID no longer being a random number, but deducible from the previous bitmap UUID, the detection of this special case becomes more reliable. The SyncUUID now is the previous bitmap UUID + 0x1000000000000. Rule 5a: Cs = H1p & H1p + Offset = Bp Connection was lost before SyncUUID Packet came through. Corrent (peer) UUIDs: Bp = H1p H1p = H2p H2p = 0 Become Sync target. Rule 7a: Cp = H1s & H1s + Offset = Bs Connection was lost before SyncUUID Packet came through. Correct (own) UUIDs: Bs = H1s H1s = H2s H2s = 0 Become Sync source. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 1 + drivers/block/drbd/drbd_main.c | 2 +- drivers/block/drbd/drbd_receiver.c | 35 +++++++++++++++++++++-------------- 3 files changed, 23 insertions(+), 15 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 84b4575fdf43..3c8eecd9666d 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -97,6 +97,7 @@ extern char usermode_helper[]; #define ID_SYNCER (-1ULL) #define ID_VACANT 0 #define is_syncer_block_id(id) ((id) == ID_SYNCER) +#define UUID_NEW_BM_OFFSET ((u64)0x0001000000000000ULL) struct drbd_conf; diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index da98bff7c333..b3b6d3190f65 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2022,7 +2022,7 @@ int drbd_gen_and_send_sync_uuid(struct drbd_conf *mdev) D_ASSERT(mdev->state.disk == D_UP_TO_DATE); - get_random_bytes(&uuid, sizeof(u64)); + uuid = mdev->ldev->md.uuid[UI_BITMAP] + UUID_NEW_BM_OFFSET; drbd_uuid_set(mdev, UI_BITMAP, uuid); drbd_md_sync(mdev); p.uuid = cpu_to_be64(uuid); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index fd0957f9c230..7991183749e3 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -2293,6 +2293,8 @@ static void drbd_uuid_dump(struct drbd_conf *mdev, char *text, u64 *uuid, -2 C_SYNC_TARGET set BitMap -100 after split brain, disconnect -1000 unrelated data +-1091 requires proto 91 +-1096 requires proto 96 */ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(local) { @@ -2322,7 +2324,7 @@ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(l if (mdev->p_uuid[UI_BITMAP] == (u64)0 && mdev->ldev->md.uuid[UI_BITMAP] != (u64)0) { if (mdev->agreed_pro_version < 91) - return -1001; + return -1091; if ((mdev->ldev->md.uuid[UI_BITMAP] & ~((u64)1)) == (mdev->p_uuid[UI_HISTORY_START] & ~((u64)1)) && (mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1)) == (mdev->p_uuid[UI_HISTORY_START + 1] & ~((u64)1))) { @@ -2343,7 +2345,7 @@ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(l if (mdev->ldev->md.uuid[UI_BITMAP] == (u64)0 && mdev->p_uuid[UI_BITMAP] != (u64)0) { if (mdev->agreed_pro_version < 91) - return -1001; + return -1091; if ((mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1)) == (mdev->p_uuid[UI_BITMAP] & ~((u64)1)) && (mdev->ldev->md.uuid[UI_HISTORY_START + 1] & ~((u64)1)) == (mdev->p_uuid[UI_HISTORY_START] & ~((u64)1))) { @@ -2388,17 +2390,22 @@ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(l *rule_nr = 51; peer = mdev->p_uuid[UI_HISTORY_START] & ~((u64)1); if (self == peer) { - self = mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1); - peer = mdev->p_uuid[UI_HISTORY_START + 1] & ~((u64)1); - if (self == peer) { + if (mdev->agreed_pro_version < 96 ? + (mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1)) == + (mdev->p_uuid[UI_HISTORY_START + 1] & ~((u64)1)) : + peer + UUID_NEW_BM_OFFSET == (mdev->p_uuid[UI_BITMAP] & ~((u64)1))) { /* The last P_SYNC_UUID did not get though. Undo the last start of resync as sync source modifications of the peer's UUIDs. */ if (mdev->agreed_pro_version < 91) - return -1001; + return -1091; mdev->p_uuid[UI_BITMAP] = mdev->p_uuid[UI_HISTORY_START]; mdev->p_uuid[UI_HISTORY_START] = mdev->p_uuid[UI_HISTORY_START + 1]; + + dev_info(DEV, "Did not got last syncUUID packet, corrected:\n"); + drbd_uuid_dump(mdev, "peer", mdev->p_uuid, mdev->p_uuid[UI_SIZE], mdev->p_uuid[UI_FLAGS]); + return -1; } } @@ -2420,20 +2427,20 @@ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(l *rule_nr = 71; self = mdev->ldev->md.uuid[UI_HISTORY_START] & ~((u64)1); if (self == peer) { - self = mdev->ldev->md.uuid[UI_HISTORY_START + 1] & ~((u64)1); - peer = mdev->p_uuid[UI_HISTORY_START] & ~((u64)1); - if (self == peer) { + if (mdev->agreed_pro_version < 96 ? + (mdev->ldev->md.uuid[UI_HISTORY_START + 1] & ~((u64)1)) == + (mdev->p_uuid[UI_HISTORY_START] & ~((u64)1)) : + self + UUID_NEW_BM_OFFSET == (mdev->ldev->md.uuid[UI_BITMAP] & ~((u64)1))) { /* The last P_SYNC_UUID did not get though. Undo the last start of resync as sync source modifications of our UUIDs. */ if (mdev->agreed_pro_version < 91) - return -1001; + return -1091; _drbd_uuid_set(mdev, UI_BITMAP, mdev->ldev->md.uuid[UI_HISTORY_START]); _drbd_uuid_set(mdev, UI_HISTORY_START, mdev->ldev->md.uuid[UI_HISTORY_START + 1]); - dev_info(DEV, "Undid last start of resync:\n"); - + dev_info(DEV, "Last syncUUID did not get through, corrected:\n"); drbd_uuid_dump(mdev, "self", mdev->ldev->md.uuid, mdev->state.disk >= D_NEGOTIATING ? drbd_bm_total_weight(mdev) : 0, 0); @@ -2496,8 +2503,8 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol dev_alert(DEV, "Unrelated data, aborting!\n"); return C_MASK; } - if (hg == -1001) { - dev_alert(DEV, "To resolve this both sides have to support at least protocol 91\n"); + if (hg < -1000) { + dev_alert(DEV, "To resolve this both sides have to support at least protocol %d\n", -hg - 1000); return C_MASK; } -- cgit v1.2.3 From 71c78cfba232de8f61a4b1bbb6e876424d133407 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Fri, 14 Jan 2011 19:20:34 +0100 Subject: drbd: Nothing should stop SyncSource -> Ahead transitions Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_req.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index a3f6b04ebaba..6f9d1bfcca58 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1002,7 +1002,7 @@ allocate_barrier: congested = 1; } - if (congested && atomic_read(&mdev->rs_pending_cnt) == 0) { + if (congested) { /* rs_pending_cnt must be zero, otherwise the two peers might get different bitmaps. With sane configurations the resync stalls long before we might want to go into -- cgit v1.2.3 From 370a43e7982dd497822097e0ae6022947ac2e7d4 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Fri, 14 Jan 2011 16:03:11 +0100 Subject: drbd: Work on the Ahead -> SyncSource transition The test if rs_pending_cnt == 0 was too weak. Using Test for unacked_cnt == 0 instead. Moved that into the worker. Since unacked_cnt gets already increased when an P_RS_DATA_REQ comes in. Also using a timer to make Ahead -> SyncSource -> Ahead cycles slower... Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 3 +++ drivers/block/drbd/drbd_main.c | 4 ++++ drivers/block/drbd/drbd_receiver.c | 8 +++----- drivers/block/drbd/drbd_worker.c | 16 +++++++++++++++- 4 files changed, 25 insertions(+), 6 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 3c8eecd9666d..cfe7fff459e3 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -850,6 +850,7 @@ enum { GOT_PING_ACK, /* set when we receive a ping_ack packet, misc wait gets woken */ NEW_CUR_UUID, /* Create new current UUID when thawing IO */ AL_SUSPENDED, /* Activity logging is currently suspended. */ + AHEAD_TO_SYNC_SOURCE, /* Ahead -> SyncSource queued */ }; struct drbd_bitmap; /* opaque for drbd_conf */ @@ -961,6 +962,7 @@ struct drbd_conf { start_resync_work; struct timer_list resync_timer; struct timer_list md_sync_timer; + struct timer_list start_resync_timer; #ifdef DRBD_DEBUG_MD_SYNC struct { unsigned int line; @@ -1544,6 +1546,7 @@ extern int w_send_oos(struct drbd_conf *, struct drbd_work *, int); extern int w_start_resync(struct drbd_conf *, struct drbd_work *, int); extern void resync_timer_fn(unsigned long data); +extern void start_resync_timer_fn(unsigned long data); /* drbd_receiver.c */ extern int drbd_rs_should_slow_down(struct drbd_conf *mdev, sector_t sector); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index b3b6d3190f65..8ec7c65988be 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2984,12 +2984,16 @@ void drbd_init_set_defaults(struct drbd_conf *mdev) mdev->go_diskless.cb = w_go_diskless; mdev->md_sync_work.cb = w_md_sync; mdev->bm_io_work.w.cb = w_bitmap_io; + mdev->start_resync_work.cb = w_start_resync; init_timer(&mdev->resync_timer); init_timer(&mdev->md_sync_timer); + init_timer(&mdev->start_resync_timer); mdev->resync_timer.function = resync_timer_fn; mdev->resync_timer.data = (unsigned long) mdev; mdev->md_sync_timer.function = md_sync_timer_fn; mdev->md_sync_timer.data = (unsigned long) mdev; + mdev->start_resync_timer.function = start_resync_timer_fn; + mdev->start_resync_timer.data = (unsigned long) mdev; init_waitqueue_head(&mdev->misc_wait); init_waitqueue_head(&mdev->state_wait); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 7991183749e3..18cb8b609fe4 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -4392,11 +4392,9 @@ static int got_BarrierAck(struct drbd_conf *mdev, struct p_header80 *h) if (mdev->state.conn == C_AHEAD && atomic_read(&mdev->ap_in_flight) == 0 && - atomic_read(&mdev->rs_pending_cnt) == 0 && - list_empty(&mdev->start_resync_work.list)) { - struct drbd_work *w = &mdev->start_resync_work; - w->cb = w_start_resync; - drbd_queue_work(&mdev->data.work, w); + !test_and_set_bit(AHEAD_TO_SYNC_SOURCE, &mdev->current_epoch->flags)) { + mdev->start_resync_timer.expires = jiffies + HZ; + add_timer(&mdev->start_resync_timer); } return true; diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 147f76b26810..3a95b701b5d0 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -712,10 +712,24 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca } +void start_resync_timer_fn(unsigned long data) +{ + struct drbd_conf *mdev = (struct drbd_conf *) data; + + drbd_queue_work(&mdev->data.work, &mdev->start_resync_work); +} + int w_start_resync(struct drbd_conf *mdev, struct drbd_work *w, int cancel) { - drbd_start_resync(mdev, C_SYNC_SOURCE); + if (atomic_read(&mdev->unacked_cnt) || atomic_read(&mdev->rs_pending_cnt)) { + dev_warn(DEV, "w_start_resync later...\n"); + mdev->start_resync_timer.expires = jiffies + HZ/10; + add_timer(&mdev->start_resync_timer); + return 1; + } + drbd_start_resync(mdev, C_SYNC_SOURCE); + clear_bit(AHEAD_TO_SYNC_SOURCE, &mdev->current_epoch->flags); return 1; } -- cgit v1.2.3 From 148efa165e9464927887b03c83a52c33b80b4431 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Sat, 15 Jan 2011 00:21:15 +0100 Subject: drbd: Do not drop net config if sending in drbd_send_protocol() fails Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 2 +- drivers/block/drbd/drbd_receiver.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 8ec7c65988be..1061b9fff2b0 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1967,7 +1967,7 @@ int drbd_send_protocol(struct drbd_conf *mdev) else { dev_err(DEV, "--dry-run is not supported by peer"); kfree(p); - return 0; + return -1; } } p->conn_flags = cpu_to_be32(cf); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 18cb8b609fe4..fb8e86153fd0 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -906,7 +906,7 @@ retry: put_ldev(mdev); } - if (!drbd_send_protocol(mdev)) + if (drbd_send_protocol(mdev) == -1) return -1; drbd_send_sync_param(mdev, &mdev->sync_conf); drbd_send_sizes(mdev, 0, 0); -- cgit v1.2.3 From 94f2b05f03fbc605f83ae501682c85ff4535bb6d Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 17 Jan 2011 15:14:26 +0100 Subject: drbd: Killed an assert that is no longer valid The point is that drbd_disconnect() can be called with a cstate of WFConnection. That happens if the user issues "drbdsetup disconnect" while the drbd_connect() function executes. Then drbdd_init() will call drbdd(), which in turn will return without receiving any packets. Then drbdd_init() will end up calling drbd_disconnect() with a cstate of WFConnection. Bottom line: This assertion is wrong as it is, and we do not see value in fixing it. => Removing it. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index fb8e86153fd0..2207d2886f84 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3763,9 +3763,6 @@ static void drbd_disconnect(struct drbd_conf *mdev) if (mdev->state.conn == C_STANDALONE) return; - if (mdev->state.conn >= C_WF_CONNECTION) - dev_err(DEV, "ASSERT FAILED cstate = %s, expected < WFConnection\n", - drbd_conn_str(mdev->state.conn)); /* asender does not clean up anything. it must not interfere, either */ drbd_thread_stop(&mdev->asender); -- cgit v1.2.3 From 2deb8336d04106f215c21ad1b029e78d12033d02 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 17 Jan 2011 18:39:18 +0100 Subject: drbd: Fixed P_NEG_ACK processing for protocol A and B Protocol A has no P_WRITE_ACKs, but has P_NEG_ACKs. The master bio might already be completed, therefore the request is no longer in the collision hash. => Do not try to validate block_id as request In Protocol B we might already have got a P_RECV_ACK but then get a P_NEG_ACK after wards. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 45 ++++++++++++++++++++++++++++---------- 1 file changed, 33 insertions(+), 12 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 2207d2886f84..a7f5b6d134e3 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1633,9 +1633,6 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned u32 dp_flags; if (!get_ldev(mdev)) { - if (__ratelimit(&drbd_ratelimit_state)) - dev_err(DEV, "Can not write mirrored data block " - "to local disk.\n"); spin_lock(&mdev->peer_seq_lock); if (mdev->peer_seq+1 == be32_to_cpu(p->seq_num)) mdev->peer_seq++; @@ -4247,8 +4244,6 @@ static struct drbd_request *_ack_id_to_req(struct drbd_conf *mdev, return req; } } - dev_err(DEV, "_ack_id_to_req: failed to find req %p, sector %llus in list\n", - (void *)(unsigned long)id, (unsigned long long)sector); return NULL; } @@ -4266,7 +4261,9 @@ static int validate_req_change_req_state(struct drbd_conf *mdev, req = validator(mdev, id, sector); if (unlikely(!req)) { spin_unlock_irq(&mdev->req_lock); - dev_err(DEV, "%s: got a corrupt block_id/sector pair\n", func); + + dev_err(DEV, "%s: failed to find req %p, sector %llus\n", func, + (void *)(unsigned long)id, (unsigned long long)sector); return false; } __req_mod(req, what, &m); @@ -4321,20 +4318,44 @@ static int got_NegAck(struct drbd_conf *mdev, struct p_header80 *h) { struct p_block_ack *p = (struct p_block_ack *)h; sector_t sector = be64_to_cpu(p->sector); - - if (__ratelimit(&drbd_ratelimit_state)) - dev_warn(DEV, "Got NegAck packet. Peer is in troubles?\n"); + int size = be32_to_cpu(p->blksize); + struct drbd_request *req; + struct bio_and_error m; update_peer_seq(mdev, be32_to_cpu(p->seq_num)); if (is_syncer_block_id(p->block_id)) { - int size = be32_to_cpu(p->blksize); dec_rs_pending(mdev); drbd_rs_failed_io(mdev, sector, size); return true; } - return validate_req_change_req_state(mdev, p->block_id, sector, - _ack_id_to_req, __func__ , neg_acked); + + spin_lock_irq(&mdev->req_lock); + req = _ack_id_to_req(mdev, p->block_id, sector); + if (!req) { + spin_unlock_irq(&mdev->req_lock); + if (mdev->net_conf->wire_protocol == DRBD_PROT_A || + mdev->net_conf->wire_protocol == DRBD_PROT_B) { + /* Protocol A has no P_WRITE_ACKs, but has P_NEG_ACKs. + The master bio might already be completed, therefore the + request is no longer in the collision hash. + => Do not try to validate block_id as request. */ + /* In Protocol B we might already have got a P_RECV_ACK + but then get a P_NEG_ACK after wards. */ + drbd_set_out_of_sync(mdev, sector, size); + return true; + } else { + dev_err(DEV, "%s: failed to find req %p, sector %llus\n", __func__, + (void *)(unsigned long)p->block_id, (unsigned long long)sector); + return false; + } + } + __req_mod(req, neg_acked, &m); + spin_unlock_irq(&mdev->req_lock); + + if (m.bio) + complete_master_bio(mdev, &m); + return true; } static int got_NegDReply(struct drbd_conf *mdev, struct p_header80 *h) -- cgit v1.2.3 From 6a35c45f890dc18c5527ac501b308058118f20e7 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Mon, 17 Jan 2011 20:27:30 +0100 Subject: drbd: Ensure that an epoch contains only requests of one kind The assert in drbd_req.c:755 forces us to have only requests of one kind in an epoch. The two kinds we distinguish here are: local-only or mirrored. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 7 ++++++- drivers/block/drbd/drbd_req.c | 29 ++++------------------------- drivers/block/drbd/drbd_req.h | 18 ++++++++++++++++++ 3 files changed, 28 insertions(+), 26 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 1061b9fff2b0..34ee8e44a751 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1261,9 +1261,14 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns, if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED) drbd_resume_al(mdev); - if (os.conn == C_AHEAD && ns.conn != C_AHEAD) + /* Start a new epoch in case we start to mirror write requests */ + if (!drbd_should_do_remote(os) && drbd_should_do_remote(ns)) tl_forget(mdev); + /* Do not add local-only requests to an epoch with mirrored requests */ + if (drbd_should_do_remote(os) && !drbd_should_do_remote(ns)) + set_bit(CREATE_BARRIER, &mdev->flags); + ascw = kmalloc(sizeof(*ascw), GFP_ATOMIC); if (ascw) { ascw->os = os; diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 6f9d1bfcca58..336937a14d3f 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -762,27 +762,6 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr); } -static bool drbd_should_do_remote(struct drbd_conf *mdev) -{ - union drbd_state s = mdev->state; - - return s.pdsk == D_UP_TO_DATE || - (s.pdsk >= D_INCONSISTENT && - s.conn >= C_WF_BITMAP_T && - s.conn < C_AHEAD); - /* Before proto 96 that was >= CONNECTED instead of >= C_WF_BITMAP_T. - That is equivalent since before 96 IO was frozen in the C_WF_BITMAP* - states. */ -} -static bool drbd_should_send_oos(struct drbd_conf *mdev) -{ - union drbd_state s = mdev->state; - - return s.conn == C_AHEAD || s.conn == C_WF_BITMAP_S; - /* pdsk = D_INCONSISTENT as a consequence. Protocol 96 check not necessary - since we enter state C_AHEAD only if proto >= 96 */ -} - static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time) { const int rw = bio_rw(bio); @@ -854,8 +833,8 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, uns drbd_al_begin_io(mdev, sector); } - remote = remote && drbd_should_do_remote(mdev); - send_oos = rw == WRITE && drbd_should_send_oos(mdev); + remote = remote && drbd_should_do_remote(mdev->state); + send_oos = rw == WRITE && drbd_should_send_oos(mdev->state); D_ASSERT(!(remote && send_oos)); if (!(local || remote) && !is_susp(mdev->state)) { @@ -896,8 +875,8 @@ allocate_barrier: } if (remote || send_oos) { - remote = drbd_should_do_remote(mdev); - send_oos = rw == WRITE && drbd_should_send_oos(mdev); + remote = drbd_should_do_remote(mdev->state); + send_oos = rw == WRITE && drbd_should_send_oos(mdev->state); D_ASSERT(!(remote && send_oos)); if (!(remote || send_oos)) diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index 077c47b1e9d7..32c1f2a31266 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -360,4 +360,22 @@ static inline int req_mod(struct drbd_request *req, return rv; } + +static inline bool drbd_should_do_remote(union drbd_state s) +{ + return s.pdsk == D_UP_TO_DATE || + (s.pdsk >= D_INCONSISTENT && + s.conn >= C_WF_BITMAP_T && + s.conn < C_AHEAD); + /* Before proto 96 that was >= CONNECTED instead of >= C_WF_BITMAP_T. + That is equivalent since before 96 IO was frozen in the C_WF_BITMAP* + states. */ +} +static inline bool drbd_should_send_oos(union drbd_state s) +{ + return s.conn == C_AHEAD || s.conn == C_WF_BITMAP_S; + /* pdsk = D_INCONSISTENT as a consequence. Protocol 96 check not necessary + since we enter state C_AHEAD only if proto >= 96 */ +} + #endif -- cgit v1.2.3 From 20ee639024e3d33111df0e343050b218c656bf16 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Tue, 18 Jan 2011 15:28:59 +0100 Subject: drbd: cleaned up __set_current_state() followed by schedule_timeout() calls Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 3 +-- drivers/block/drbd/drbd_receiver.c | 9 +++------ drivers/block/drbd/drbd_worker.c | 3 +-- 3 files changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index a46bc0287e21..42e16e4edfa3 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -360,8 +360,7 @@ drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) if (rv == SS_TWO_PRIMARIES) { /* Maybe the peer is detected as dead very soon... retry at most once more in this case. */ - __set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout((mdev->net_conf->ping_timeo+1)*HZ/10); + schedule_timeout_interruptible((mdev->net_conf->ping_timeo+1)*HZ/10); if (try < max_tries) try = max_tries - 1; continue; diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index a7f5b6d134e3..3ccc6c33a330 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -768,8 +768,7 @@ static int drbd_connect(struct drbd_conf *mdev) if (s || ++try >= 3) break; /* give the other side time to call bind() & listen() */ - __set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(HZ / 10); + schedule_timeout_interruptible(HZ / 10); } if (s) { @@ -788,8 +787,7 @@ static int drbd_connect(struct drbd_conf *mdev) } if (sock && msock) { - __set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(HZ / 10); + schedule_timeout_interruptible(HZ / 10); ok = drbd_socket_okay(mdev, &sock); ok = drbd_socket_okay(mdev, &msock) && ok; if (ok) @@ -4142,8 +4140,7 @@ int drbdd_init(struct drbd_thread *thi) h = drbd_connect(mdev); if (h == 0) { drbd_disconnect(mdev); - __set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(HZ); + schedule_timeout_interruptible(HZ); } if (h == -1) { dev_warn(DEV, "Discarding network configuration.\n"); diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 3a95b701b5d0..7b3d4dc4af84 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -777,8 +777,7 @@ int drbd_resync_finished(struct drbd_conf *mdev) * queue (or even the read operations for those packets * is not finished by now). Retry in 100ms. */ - __set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(HZ / 10); + schedule_timeout_interruptible(HZ / 10); w = kmalloc(sizeof(struct drbd_work), GFP_ATOMIC); if (w) { w->cb = w_resync_finished; -- cgit v1.2.3 From 6c922ed543bee1bc6685ade07be59f3fa49a7288 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Wed, 12 Jan 2011 11:51:13 +0100 Subject: drbd: only generate and send a new sync uuid after a successful state change Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_worker.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 7b3d4dc4af84..ec42e04bb517 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1544,24 +1544,23 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) } write_unlock_irq(&global_state_lock); - if (side == C_SYNC_TARGET) - mdev->bm_resync_fo = 0; - - /* Since protocol 96, we must serialize drbd_gen_and_send_sync_uuid - * with w_send_oos, or the sync target will get confused as to - * how much bits to resync. We cannot do that always, because for an - * empty resync and protocol < 95, we need to do it here, as we call - * drbd_resync_finished from here in that case. - * We drbd_gen_and_send_sync_uuid here for protocol < 96, - * and from after_state_ch otherwise. */ - if (side == C_SYNC_SOURCE && mdev->agreed_pro_version < 96) - drbd_gen_and_send_sync_uuid(mdev); - if (r == SS_SUCCESS) { dev_info(DEV, "Began resync as %s (will sync %lu KB [%lu bits set]).\n", drbd_conn_str(ns.conn), (unsigned long) mdev->rs_total << (BM_BLOCK_SHIFT-10), (unsigned long) mdev->rs_total); + if (side == C_SYNC_TARGET) + mdev->bm_resync_fo = 0; + + /* Since protocol 96, we must serialize drbd_gen_and_send_sync_uuid + * with w_send_oos, or the sync target will get confused as to + * how much bits to resync. We cannot do that always, because for an + * empty resync and protocol < 95, we need to do it here, as we call + * drbd_resync_finished from here in that case. + * We drbd_gen_and_send_sync_uuid here for protocol < 96, + * and from after_state_ch otherwise. */ + if (side == C_SYNC_SOURCE && mdev->agreed_pro_version < 96) + drbd_gen_and_send_sync_uuid(mdev); if (mdev->agreed_pro_version < 95 && mdev->rs_total == 0) { /* This still has a race (about when exactly the peers -- cgit v1.2.3 From 194bfb32dba8345a7e0f83e9b1ee965e14d4b679 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Tue, 18 Jan 2011 10:38:01 +0100 Subject: drbd: serialize admin requests for new resync with pending bitmap io Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 42e16e4edfa3..434b621f76a9 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1873,6 +1873,10 @@ static int drbd_nl_invalidate(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl { int retcode; + /* If there is still bitmap IO pending, probably because of a previous + * resync just being finished, wait for it before requesting a new resync. */ + wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags)); + retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T), CS_ORDERED); if (retcode < SS_SUCCESS && retcode != SS_NEED_CONNECTION) @@ -1908,6 +1912,10 @@ static int drbd_nl_invalidate_peer(struct drbd_conf *mdev, struct drbd_nl_cfg_re { int retcode; + /* If there is still bitmap IO pending, probably because of a previous + * resync just being finished, wait for it before requesting a new resync. */ + wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags)); + retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S), CS_ORDERED); if (retcode < SS_SUCCESS) { @@ -1916,7 +1924,6 @@ static int drbd_nl_invalidate_peer(struct drbd_conf *mdev, struct drbd_nl_cfg_re into a full resync. */ retcode = drbd_request_state(mdev, NS(pdsk, D_INCONSISTENT)); if (retcode >= SS_SUCCESS) { - /* open coded drbd_bitmap_io() */ if (drbd_bitmap_io(mdev, &drbd_bmio_set_susp_al, "set_n_write from invalidate_peer")) retcode = ERR_IO_MD_DISK; -- cgit v1.2.3 From 54b956abef2c1ab339fd01792e69e4a921a5e487 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 20 Jan 2011 10:47:53 +0100 Subject: drbd: don't pointlessly queue bitmap send, if we lost connection This is a minor optimization and cleanup, and also considerably reduces some harmless (but noisy) race with the connection cleanup code. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 34ee8e44a751..1caced08a73e 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1428,8 +1428,13 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, drbd_send_uuids(mdev); drbd_send_state(mdev); } - if (os.conn != C_WF_BITMAP_S && ns.conn == C_WF_BITMAP_S) - drbd_queue_bitmap_io(mdev, &drbd_send_bitmap, NULL, "send_bitmap (WFBitMapS)"); + /* No point in queuing send_bitmap if we don't have a connection + * anymore, so check also the _current_ state, not only the new state + * at the time this work was queued. */ + if (os.conn != C_WF_BITMAP_S && ns.conn == C_WF_BITMAP_S && + mdev->state.conn == C_WF_BITMAP_S) + drbd_queue_bitmap_io(mdev, &drbd_send_bitmap, NULL, + "send_bitmap (WFBitMapS)"); /* Lost contact to peer's copy of the data */ if ((os.pdsk >= D_INCONSISTENT && -- cgit v1.2.3 From 79a30d2d71f7be862de93228fe9b919ef664af52 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 20 Jan 2011 10:32:05 +0100 Subject: drbd: queue bitmap writeout more intelligently The "lazy writeout" of cleared bitmap pages happens during resync, and should happen again once the resync finishes cleanly, or is aborted. If resync finished cleanly, or was aborted because of peer disk failure, we trigger the writeout from worker context in the after state change work. If resync was aborted because of connection failure, we should not immediately trigger bitmap writeout, but rather postpone the writeout to after the connection cleanup happened. We now do it in the receiver context from drbd_disconnect(). If resync was aborted because of local disk failure, well, there is nothing to write to anymore. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 12 +++++++++++- drivers/block/drbd/drbd_receiver.c | 1 + 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 1caced08a73e..e0be4077d564 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1593,8 +1593,18 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, if (os.disk < D_UP_TO_DATE && os.conn >= C_SYNC_SOURCE && ns.conn == C_CONNECTED) drbd_send_state(mdev); - if (os.conn > C_CONNECTED && ns.conn <= C_CONNECTED) + /* This triggers bitmap writeout of potentially still unwritten pages + * if the resync finished cleanly, or aborted because of peer disk + * failure. Resync aborted because of connection failure does bitmap + * writeout from drbd_disconnect. + * For resync aborted because of local disk failure, we cannot do + * any bitmap writeout anymore. + */ + if (os.conn > C_CONNECTED && ns.conn == C_CONNECTED && + mdev->state.conn == C_CONNECTED && get_ldev(mdev)) { drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL, "write from resync_finished"); + put_ldev(mdev); + } /* free tl_hash if we Got thawed and are C_STANDALONE */ if (ns.conn == C_STANDALONE && !is_susp(ns) && mdev->tl_hash) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 3ccc6c33a330..432fe8f6b5d2 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3811,6 +3811,7 @@ static void drbd_disconnect(struct drbd_conf *mdev) fp = FP_DONT_CARE; if (get_ldev(mdev)) { + drbd_bitmap_io(mdev, &drbd_bm_write, "write from disconnect"); fp = mdev->ldev->dc.fencing; put_ldev(mdev); } -- cgit v1.2.3 From cd88d030d41a9b0100fd5fee872024e6ebc8b276 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Thu, 20 Jan 2011 11:46:41 +0100 Subject: drbd: Provide hints with the error message when clearing the sync pause flag When the user clears the sync-pause flag, and sync stays in pause state, give hints to the user, why it still is in pause state. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 12 ++++++++++-- include/linux/drbd.h | 2 ++ 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 434b621f76a9..ffe3a97fef9b 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1952,9 +1952,17 @@ static int drbd_nl_resume_sync(struct drbd_conf *mdev, struct drbd_nl_cfg_req *n struct drbd_nl_cfg_reply *reply) { int retcode = NO_ERROR; + union drbd_state s; - if (drbd_request_state(mdev, NS(user_isp, 0)) == SS_NOTHING_TO_DO) - retcode = ERR_PAUSE_IS_CLEAR; + if (drbd_request_state(mdev, NS(user_isp, 0)) == SS_NOTHING_TO_DO) { + s = mdev->state; + if (s.conn == C_PAUSED_SYNC_S || s.conn == C_PAUSED_SYNC_T) { + retcode = s.aftr_isp ? ERR_PIC_AFTER_DEP : + s.peer_isp ? ERR_PIC_PEER_DEP : ERR_PAUSE_IS_CLEAR; + } else { + retcode = ERR_PAUSE_IS_CLEAR; + } + } reply->ret_code = retcode; return 0; diff --git a/include/linux/drbd.h b/include/linux/drbd.h index d10431fab004..ba5c785d3f7d 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -153,6 +153,8 @@ enum drbd_ret_code { ERR_NEED_APV_93 = 153, ERR_STONITH_AND_PROT_A = 154, ERR_CONG_NOT_PROTO_A = 155, + ERR_PIC_AFTER_DEP = 156, + ERR_PIC_PEER_DEP = 157, /* insert new ones above this line */ AFTER_LAST_ERR_CODE -- cgit v1.2.3 From d07c9c10e5620c632aae9cac2b609033398f6139 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Thu, 20 Jan 2011 16:49:33 +0100 Subject: drbd: We can not process BIOs with a size of 0 Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 432fe8f6b5d2..e9354931eace 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1237,6 +1237,7 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __ data_size -= dgs; + ERR_IF(data_size == 0) return NULL; ERR_IF(data_size & 0x1ff) return NULL; ERR_IF(data_size > DRBD_MAX_BIO_SIZE) return NULL; -- cgit v1.2.3 From 62b0da3a244ac33d25a77861ef1cc0080103f2ff Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Thu, 20 Jan 2011 13:25:21 +0100 Subject: drbd: log UUIDs whenever they change All decisions about sync, sync direction, and wether or not to allow a connect or attach are based on our set of UUIDs to tag a data generation. Log changes to the UUIDs whenever they occur, logging "new current UUID P:Q:R:S" is more useful than "Creating new current UUID". Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 6 ++-- drivers/block/drbd/drbd_main.c | 71 ++++++++++++++++++-------------------- drivers/block/drbd/drbd_nl.c | 1 + drivers/block/drbd/drbd_receiver.c | 11 ++++-- drivers/block/drbd/drbd_worker.c | 20 ++++++----- 5 files changed, 58 insertions(+), 51 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index cfe7fff459e3..0a9059eb94db 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1240,11 +1240,11 @@ extern int _drbd_send_bitmap(struct drbd_conf *mdev); extern int drbd_send_sr_reply(struct drbd_conf *mdev, enum drbd_state_rv retcode); extern void drbd_free_bc(struct drbd_backing_dev *ldev); extern void drbd_mdev_cleanup(struct drbd_conf *mdev); +void drbd_print_uuids(struct drbd_conf *mdev, const char *text); /* drbd_meta-data.c (still in drbd_main.c) */ extern void drbd_md_sync(struct drbd_conf *mdev); extern int drbd_md_read(struct drbd_conf *mdev, struct drbd_backing_dev *bdev); -/* maybe define them below as inline? */ extern void drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local); extern void _drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local); extern void drbd_uuid_new_current(struct drbd_conf *mdev) __must_hold(local); @@ -2360,9 +2360,11 @@ static inline void dec_ap_bio(struct drbd_conf *mdev) } } -static inline void drbd_set_ed_uuid(struct drbd_conf *mdev, u64 val) +static inline int drbd_set_ed_uuid(struct drbd_conf *mdev, u64 val) { + int changed = mdev->ed_uuid != val; mdev->ed_uuid = val; + return changed; } static inline int seq_cmp(u32 a, u32 b) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index e0be4077d564..b68332a0e73e 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1159,6 +1159,10 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns, atomic_inc(&mdev->local_cnt); mdev->state = ns; + + if (os.disk == D_ATTACHING && ns.disk >= D_NEGOTIATING) + drbd_print_uuids(mdev, "attached to UUIDs"); + wake_up(&mdev->misc_wait); wake_up(&mdev->state_wait); @@ -2035,6 +2039,24 @@ int drbd_send_uuids_skip_initial_sync(struct drbd_conf *mdev) return _drbd_send_uuids(mdev, 8); } +void drbd_print_uuids(struct drbd_conf *mdev, const char *text) +{ + if (get_ldev_if_state(mdev, D_NEGOTIATING)) { + u64 *uuid = mdev->ldev->md.uuid; + dev_info(DEV, "%s %016llX:%016llX:%016llX:%016llX\n", + text, + (unsigned long long)uuid[UI_CURRENT], + (unsigned long long)uuid[UI_BITMAP], + (unsigned long long)uuid[UI_HISTORY_START], + (unsigned long long)uuid[UI_HISTORY_END]); + put_ldev(mdev); + } else { + dev_info(DEV, "%s effective data uuid: %016llX\n", + text, + (unsigned long long)mdev->ed_uuid); + } +} + int drbd_gen_and_send_sync_uuid(struct drbd_conf *mdev) { struct p_rs_uuid p; @@ -2044,6 +2066,7 @@ int drbd_gen_and_send_sync_uuid(struct drbd_conf *mdev) uuid = mdev->ldev->md.uuid[UI_BITMAP] + UUID_NEW_BM_OFFSET; drbd_uuid_set(mdev, UI_BITMAP, uuid); + drbd_print_uuids(mdev, "updated sync UUID"); drbd_md_sync(mdev); p.uuid = cpu_to_be64(uuid); @@ -3749,28 +3772,6 @@ int drbd_md_read(struct drbd_conf *mdev, struct drbd_backing_dev *bdev) return rv; } -static void debug_drbd_uuid(struct drbd_conf *mdev, enum drbd_uuid_index index) -{ - static char *uuid_str[UI_EXTENDED_SIZE] = { - [UI_CURRENT] = "CURRENT", - [UI_BITMAP] = "BITMAP", - [UI_HISTORY_START] = "HISTORY_START", - [UI_HISTORY_END] = "HISTORY_END", - [UI_SIZE] = "SIZE", - [UI_FLAGS] = "FLAGS", - }; - - if (index >= UI_EXTENDED_SIZE) { - dev_warn(DEV, " uuid_index >= EXTENDED_SIZE\n"); - return; - } - - dynamic_dev_dbg(DEV, " uuid[%s] now %016llX\n", - uuid_str[index], - (unsigned long long)mdev->ldev->md.uuid[index]); -} - - /** * drbd_md_mark_dirty() - Mark meta data super block as dirty * @mdev: DRBD device. @@ -3800,10 +3801,8 @@ static void drbd_uuid_move_history(struct drbd_conf *mdev) __must_hold(local) { int i; - for (i = UI_HISTORY_START; i < UI_HISTORY_END; i++) { + for (i = UI_HISTORY_START; i < UI_HISTORY_END; i++) mdev->ldev->md.uuid[i+1] = mdev->ldev->md.uuid[i]; - debug_drbd_uuid(mdev, i+1); - } } void _drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local) @@ -3818,7 +3817,6 @@ void _drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local) } mdev->ldev->md.uuid[idx] = val; - debug_drbd_uuid(mdev, idx); drbd_md_mark_dirty(mdev); } @@ -3828,7 +3826,6 @@ void drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local) if (mdev->ldev->md.uuid[idx]) { drbd_uuid_move_history(mdev); mdev->ldev->md.uuid[UI_HISTORY_START] = mdev->ldev->md.uuid[idx]; - debug_drbd_uuid(mdev, UI_HISTORY_START); } _drbd_uuid_set(mdev, idx, val); } @@ -3843,14 +3840,16 @@ void drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local) void drbd_uuid_new_current(struct drbd_conf *mdev) __must_hold(local) { u64 val; + unsigned long long bm_uuid = mdev->ldev->md.uuid[UI_BITMAP]; + + if (bm_uuid) + dev_warn(DEV, "bm UUID was already set: %llX\n", bm_uuid); - dev_info(DEV, "Creating new current UUID\n"); - D_ASSERT(mdev->ldev->md.uuid[UI_BITMAP] == 0); mdev->ldev->md.uuid[UI_BITMAP] = mdev->ldev->md.uuid[UI_CURRENT]; - debug_drbd_uuid(mdev, UI_BITMAP); get_random_bytes(&val, sizeof(u64)); _drbd_uuid_set(mdev, UI_CURRENT, val); + drbd_print_uuids(mdev, "new current UUID"); /* get it to stable storage _now_ */ drbd_md_sync(mdev); } @@ -3864,16 +3863,12 @@ void drbd_uuid_set_bm(struct drbd_conf *mdev, u64 val) __must_hold(local) drbd_uuid_move_history(mdev); mdev->ldev->md.uuid[UI_HISTORY_START] = mdev->ldev->md.uuid[UI_BITMAP]; mdev->ldev->md.uuid[UI_BITMAP] = 0; - debug_drbd_uuid(mdev, UI_HISTORY_START); - debug_drbd_uuid(mdev, UI_BITMAP); } else { - if (mdev->ldev->md.uuid[UI_BITMAP]) - dev_warn(DEV, "bm UUID already set"); - - mdev->ldev->md.uuid[UI_BITMAP] = val; - mdev->ldev->md.uuid[UI_BITMAP] &= ~((u64)1); + unsigned long long bm_uuid = mdev->ldev->md.uuid[UI_BITMAP]; + if (bm_uuid) + dev_warn(DEV, "bm UUID was already set: %llX\n", bm_uuid); - debug_drbd_uuid(mdev, UI_BITMAP); + mdev->ldev->md.uuid[UI_BITMAP] = val & ~((u64)1); } drbd_md_mark_dirty(mdev); } diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index ffe3a97fef9b..ce6f2fe80852 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2151,6 +2151,7 @@ static int drbd_nl_new_c_uuid(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl if (skip_initial_sync) { drbd_send_uuids_skip_initial_sync(mdev); _drbd_uuid_set(mdev, UI_BITMAP, 0); + drbd_print_uuids(mdev, "cleared bitmap UUID"); spin_lock_irq(&mdev->req_lock); _drbd_set_state(_NS2(mdev, disk, D_UP_TO_DATE, pdsk, D_UP_TO_DATE), CS_VERBOSE, NULL); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index e9354931eace..e5686a81f42c 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3024,7 +3024,7 @@ static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned { struct p_uuids *p = &mdev->data.rbuf.uuids; u64 *p_uuid; - int i; + int i, updated_uuids = 0; p_uuid = kmalloc(sizeof(u64)*UI_EXTENDED_SIZE, GFP_NOIO); @@ -3059,13 +3059,14 @@ static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned _drbd_set_state(_NS2(mdev, disk, D_UP_TO_DATE, pdsk, D_UP_TO_DATE), CS_VERBOSE, NULL); drbd_md_sync(mdev); + updated_uuids = 1; } put_ldev(mdev); } else if (mdev->state.disk < D_INCONSISTENT && mdev->state.role == R_PRIMARY) { /* I am a diskless primary, the peer just created a new current UUID for me. */ - drbd_set_ed_uuid(mdev, p_uuid[UI_CURRENT]); + updated_uuids = drbd_set_ed_uuid(mdev, p_uuid[UI_CURRENT]); } /* Before we test for the disk state, we should wait until an eventually @@ -3074,7 +3075,10 @@ static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned new disk state... */ wait_event(mdev->misc_wait, !test_bit(CLUSTER_ST_CHANGE, &mdev->flags)); if (mdev->state.conn >= C_CONNECTED && mdev->state.disk < D_INCONSISTENT) - drbd_set_ed_uuid(mdev, p_uuid[UI_CURRENT]); + updated_uuids |= drbd_set_ed_uuid(mdev, p_uuid[UI_CURRENT]); + + if (updated_uuids) + drbd_print_uuids(mdev, "receiver updated UUIDs to"); return true; } @@ -3305,6 +3309,7 @@ static int receive_sync_uuid(struct drbd_conf *mdev, enum drbd_packets cmd, unsi _drbd_uuid_set(mdev, UI_CURRENT, be64_to_cpu(p->uuid)); _drbd_uuid_set(mdev, UI_BITMAP, 0UL); + drbd_print_uuids(mdev, "updated sync uuid"); drbd_start_resync(mdev, C_SYNC_TARGET); put_ldev(mdev); diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index ec42e04bb517..ff0eb308ee4a 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -871,14 +871,18 @@ int drbd_resync_finished(struct drbd_conf *mdev) } } - drbd_uuid_set_bm(mdev, 0UL); - - if (mdev->p_uuid) { - /* Now the two UUID sets are equal, update what we - * know of the peer. */ - int i; - for (i = UI_CURRENT ; i <= UI_HISTORY_END ; i++) - mdev->p_uuid[i] = mdev->ldev->md.uuid[i]; + if (!(os.conn == C_VERIFY_S || os.conn == C_VERIFY_T)) { + /* for verify runs, we don't update uuids here, + * so there would be nothing to report. */ + drbd_uuid_set_bm(mdev, 0UL); + drbd_print_uuids(mdev, "updated UUIDs"); + if (mdev->p_uuid) { + /* Now the two UUID sets are equal, update what we + * know of the peer. */ + int i; + for (i = UI_CURRENT ; i <= UI_HISTORY_END ; i++) + mdev->p_uuid[i] = mdev->ldev->md.uuid[i]; + } } } -- cgit v1.2.3 From 20ceb2b22edaf51e59e76087efdc71a16a2858de Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 21 Jan 2011 10:56:44 +0100 Subject: drbd: describe bitmap locking for bulk operation in finer detail Now that we do no longer in-place endian-swap the bitmap, we allow selected bitmap operations (testing bits, sometimes even settting bits) during some bulk operations. This caused us to hit a lot of FIXME asserts similar to FIXME asender in drbd_bm_count_bits, bitmap locked for 'write from resync_finished' by worker Which now is nonsense: looking at the bitmap is perfectly legal as long as it is not being resized. This cosmetic patch defines some flags to describe expectations in finer detail, so the asserts in e.g. bm_change_bits_to() can be skipped if appropriate. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_bitmap.c | 48 +++++++++++++------------------ drivers/block/drbd/drbd_int.h | 36 ++++++++++++++++++++--- drivers/block/drbd/drbd_main.c | 58 +++++++++++++++++++++++++------------- drivers/block/drbd/drbd_nl.c | 19 +++++++++---- drivers/block/drbd/drbd_receiver.c | 17 +++++++---- 5 files changed, 115 insertions(+), 63 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 25428bc28476..b62dd5f26c5d 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -104,26 +104,16 @@ struct drbd_bitmap { wait_queue_head_t bm_io_wait; /* used to serialize IO of single pages */ - unsigned long bm_flags; + enum bm_flag bm_flags; /* debugging aid, in case we are still racy somewhere */ char *bm_why; struct task_struct *bm_task; }; -/* definition of bits in bm_flags */ -#define BM_LOCKED 0 -// #define BM_MD_IO_ERROR 1 unused now. -#define BM_P_VMALLOCED 2 - static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s, unsigned long e, int val, const enum km_type km); -static int bm_is_locked(struct drbd_bitmap *b) -{ - return test_bit(BM_LOCKED, &b->bm_flags); -} - #define bm_print_lock_info(m) __bm_print_lock_info(m, __func__) static void __bm_print_lock_info(struct drbd_conf *mdev, const char *func) { @@ -140,7 +130,7 @@ static void __bm_print_lock_info(struct drbd_conf *mdev, const char *func) b->bm_task == mdev->worker.task ? "worker" : "?"); } -void drbd_bm_lock(struct drbd_conf *mdev, char *why) +void drbd_bm_lock(struct drbd_conf *mdev, char *why, enum bm_flag flags) { struct drbd_bitmap *b = mdev->bitmap; int trylock_failed; @@ -163,8 +153,9 @@ void drbd_bm_lock(struct drbd_conf *mdev, char *why) b->bm_task == mdev->worker.task ? "worker" : "?"); mutex_lock(&b->bm_change); } - if (__test_and_set_bit(BM_LOCKED, &b->bm_flags)) + if (BM_LOCKED_MASK & b->bm_flags) dev_err(DEV, "FIXME bitmap already locked in bm_lock\n"); + b->bm_flags |= flags & BM_LOCKED_MASK; b->bm_why = why; b->bm_task = current; @@ -178,9 +169,10 @@ void drbd_bm_unlock(struct drbd_conf *mdev) return; } - if (!__test_and_clear_bit(BM_LOCKED, &mdev->bitmap->bm_flags)) + if (!(BM_LOCKED_MASK & mdev->bitmap->bm_flags)) dev_err(DEV, "FIXME bitmap not locked in bm_unlock\n"); + b->bm_flags &= ~BM_LOCKED_MASK; b->bm_why = NULL; b->bm_task = NULL; mutex_unlock(&b->bm_change); @@ -421,9 +413,9 @@ static struct page **bm_realloc_pages(struct drbd_bitmap *b, unsigned long want) } if (vmalloced) - set_bit(BM_P_VMALLOCED, &b->bm_flags); + b->bm_flags |= BM_P_VMALLOCED; else - clear_bit(BM_P_VMALLOCED, &b->bm_flags); + b->bm_flags &= ~BM_P_VMALLOCED; return new_pages; } @@ -460,7 +452,7 @@ void drbd_bm_cleanup(struct drbd_conf *mdev) { ERR_IF (!mdev->bitmap) return; bm_free_pages(mdev->bitmap->bm_pages, mdev->bitmap->bm_number_of_pages); - bm_vk_free(mdev->bitmap->bm_pages, test_bit(BM_P_VMALLOCED, &mdev->bitmap->bm_flags)); + bm_vk_free(mdev->bitmap->bm_pages, (BM_P_VMALLOCED & mdev->bitmap->bm_flags)); kfree(mdev->bitmap); mdev->bitmap = NULL; } @@ -623,7 +615,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) ERR_IF(!b) return -ENOMEM; - drbd_bm_lock(mdev, "resize"); + drbd_bm_lock(mdev, "resize", BM_LOCKED_MASK); dev_info(DEV, "drbd_bm_resize called with capacity == %llu\n", (unsigned long long)capacity); @@ -631,7 +623,7 @@ int drbd_bm_resize(struct drbd_conf *mdev, sector_t capacity, int set_new_bits) if (capacity == b->bm_dev_capacity) goto out; - opages_vmalloced = test_bit(BM_P_VMALLOCED, &b->bm_flags); + opages_vmalloced = (BM_P_VMALLOCED & b->bm_flags); if (capacity == 0) { spin_lock_irq(&b->bm_lock); @@ -1030,7 +1022,7 @@ static int bm_rw(struct drbd_conf *mdev, int rw, unsigned lazy_writeout_upper_id * as we submit copies of pages anyways. */ if (!ctx.flags) - WARN_ON(!bm_is_locked(b)); + WARN_ON(!(BM_LOCKED_MASK & b->bm_flags)); num_pages = b->bm_number_of_pages; @@ -1220,7 +1212,7 @@ static unsigned long bm_find_next(struct drbd_conf *mdev, ERR_IF(!b->bm_pages) return i; spin_lock_irq(&b->bm_lock); - if (bm_is_locked(b)) + if (BM_DONT_TEST & b->bm_flags) bm_print_lock_info(mdev); i = __bm_find_next(mdev, bm_fo, find_zero_bit, KM_IRQ1); @@ -1246,13 +1238,13 @@ unsigned long drbd_bm_find_next_zero(struct drbd_conf *mdev, unsigned long bm_fo * you must take drbd_bm_lock() first */ unsigned long _drbd_bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo) { - /* WARN_ON(!bm_is_locked(mdev)); */ + /* WARN_ON(!(BM_DONT_SET & mdev->b->bm_flags)); */ return __bm_find_next(mdev, bm_fo, 0, KM_USER1); } unsigned long _drbd_bm_find_next_zero(struct drbd_conf *mdev, unsigned long bm_fo) { - /* WARN_ON(!bm_is_locked(mdev)); */ + /* WARN_ON(!(BM_DONT_SET & mdev->b->bm_flags)); */ return __bm_find_next(mdev, bm_fo, 1, KM_USER1); } @@ -1322,7 +1314,7 @@ static int bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s, ERR_IF(!b->bm_pages) return 0; spin_lock_irqsave(&b->bm_lock, flags); - if (bm_is_locked(b)) + if ((val ? BM_DONT_SET : BM_DONT_CLEAR) & b->bm_flags) bm_print_lock_info(mdev); c = __bm_change_bits_to(mdev, s, e, val, KM_IRQ1); @@ -1439,7 +1431,7 @@ int drbd_bm_test_bit(struct drbd_conf *mdev, const unsigned long bitnr) ERR_IF(!b->bm_pages) return 0; spin_lock_irqsave(&b->bm_lock, flags); - if (bm_is_locked(b)) + if (BM_DONT_TEST & b->bm_flags) bm_print_lock_info(mdev); if (bitnr < b->bm_bits) { p_addr = bm_map_pidx(b, bm_bit_to_page_idx(b, bitnr)); @@ -1474,7 +1466,7 @@ int drbd_bm_count_bits(struct drbd_conf *mdev, const unsigned long s, const unsi ERR_IF(!b->bm_pages) return 1; spin_lock_irqsave(&b->bm_lock, flags); - if (bm_is_locked(b)) + if (BM_DONT_TEST & b->bm_flags) bm_print_lock_info(mdev); for (bitnr = s; bitnr <= e; bitnr++) { unsigned int idx = bm_bit_to_page_idx(b, bitnr); @@ -1522,7 +1514,7 @@ int drbd_bm_e_weight(struct drbd_conf *mdev, unsigned long enr) ERR_IF(!b->bm_pages) return 0; spin_lock_irqsave(&b->bm_lock, flags); - if (bm_is_locked(b)) + if (BM_DONT_TEST & b->bm_flags) bm_print_lock_info(mdev); s = S2W(enr); @@ -1555,7 +1547,7 @@ unsigned long drbd_bm_ALe_set_all(struct drbd_conf *mdev, unsigned long al_enr) ERR_IF(!b->bm_pages) return 0; spin_lock_irq(&b->bm_lock); - if (bm_is_locked(b)) + if (BM_DONT_SET & b->bm_flags) bm_print_lock_info(mdev); weight = b->bm_set; diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 0a9059eb94db..267d9897ca8c 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -855,6 +855,32 @@ enum { struct drbd_bitmap; /* opaque for drbd_conf */ +/* definition of bits in bm_flags to be used in drbd_bm_lock + * and drbd_bitmap_io and friends. */ +enum bm_flag { + /* do we need to kfree, or vfree bm_pages? */ + BM_P_VMALLOCED = 0x10000, /* internal use only, will be masked out */ + + /* currently locked for bulk operation */ + BM_LOCKED_MASK = 0x7, + + /* in detail, that is: */ + BM_DONT_CLEAR = 0x1, + BM_DONT_SET = 0x2, + BM_DONT_TEST = 0x4, + + /* (test bit, count bit) allowed (common case) */ + BM_LOCKED_TEST_ALLOWED = 0x3, + + /* testing bits, as well as setting new bits allowed, but clearing bits + * would be unexpected. Used during bitmap receive. Setting new bits + * requires sending of "out-of-sync" information, though. */ + BM_LOCKED_SET_ALLOWED = 0x1, + + /* clear is not expected while bitmap is locked for bulk operation */ +}; + + /* TODO sort members for performance * MAYBE group them further */ @@ -920,6 +946,7 @@ struct drbd_md_io { struct bm_io_work { struct drbd_work w; char *why; + enum bm_flag flags; int (*io_fn)(struct drbd_conf *mdev); void (*done)(struct drbd_conf *mdev, int rv); }; @@ -1242,7 +1269,6 @@ extern void drbd_free_bc(struct drbd_backing_dev *ldev); extern void drbd_mdev_cleanup(struct drbd_conf *mdev); void drbd_print_uuids(struct drbd_conf *mdev, const char *text); -/* drbd_meta-data.c (still in drbd_main.c) */ extern void drbd_md_sync(struct drbd_conf *mdev); extern int drbd_md_read(struct drbd_conf *mdev, struct drbd_backing_dev *bdev); extern void drbd_uuid_set(struct drbd_conf *mdev, int idx, u64 val) __must_hold(local); @@ -1263,10 +1289,12 @@ extern void drbd_md_mark_dirty_(struct drbd_conf *mdev, extern void drbd_queue_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), void (*done)(struct drbd_conf *, int), - char *why); + char *why, enum bm_flag flags); +extern int drbd_bitmap_io(struct drbd_conf *mdev, + int (*io_fn)(struct drbd_conf *), + char *why, enum bm_flag flags); extern int drbd_bmio_set_n_write(struct drbd_conf *mdev); extern int drbd_bmio_clear_n_write(struct drbd_conf *mdev); -extern int drbd_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), char *why); extern void drbd_go_diskless(struct drbd_conf *mdev); extern void drbd_ldev_destroy(struct drbd_conf *mdev); @@ -1452,7 +1480,7 @@ extern void drbd_bm_merge_lel(struct drbd_conf *mdev, size_t offset, extern void drbd_bm_get_lel(struct drbd_conf *mdev, size_t offset, size_t number, unsigned long *buffer); -extern void drbd_bm_lock(struct drbd_conf *mdev, char *why); +extern void drbd_bm_lock(struct drbd_conf *mdev, char *why, enum bm_flag flags); extern void drbd_bm_unlock(struct drbd_conf *mdev); /* drbd_main.c */ diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index b68332a0e73e..a9e9b496e73b 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1320,7 +1320,9 @@ static void abw_start_sync(struct drbd_conf *mdev, int rv) } } -int drbd_bitmap_io_from_worker(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), char *why) +int drbd_bitmap_io_from_worker(struct drbd_conf *mdev, + int (*io_fn)(struct drbd_conf *), + char *why, enum bm_flag flags) { int rv; @@ -1328,10 +1330,8 @@ int drbd_bitmap_io_from_worker(struct drbd_conf *mdev, int (*io_fn)(struct drbd_ /* open coded non-blocking drbd_suspend_io(mdev); */ set_bit(SUSPEND_IO, &mdev->flags); - if (!is_susp(mdev->state)) - D_ASSERT(atomic_read(&mdev->ap_bio_cnt) == 0); - drbd_bm_lock(mdev, why); + drbd_bm_lock(mdev, why, flags); rv = io_fn(mdev); drbd_bm_unlock(mdev); @@ -1438,7 +1438,8 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, if (os.conn != C_WF_BITMAP_S && ns.conn == C_WF_BITMAP_S && mdev->state.conn == C_WF_BITMAP_S) drbd_queue_bitmap_io(mdev, &drbd_send_bitmap, NULL, - "send_bitmap (WFBitMapS)"); + "send_bitmap (WFBitMapS)", + BM_LOCKED_TEST_ALLOWED); /* Lost contact to peer's copy of the data */ if ((os.pdsk >= D_INCONSISTENT && @@ -1469,7 +1470,11 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, /* D_DISKLESS Peer becomes secondary */ if (os.peer == R_PRIMARY && ns.peer == R_SECONDARY) - drbd_bitmap_io_from_worker(mdev, &drbd_bm_write, "demote diskless peer"); + /* We may still be Primary ourselves. + * No harm done if the bitmap still changes, + * redirtied pages will follow later. */ + drbd_bitmap_io_from_worker(mdev, &drbd_bm_write, + "demote diskless peer", BM_LOCKED_SET_ALLOWED); put_ldev(mdev); } @@ -1478,7 +1483,10 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, * if there is a resync going on still */ if (os.role == R_PRIMARY && ns.role == R_SECONDARY && mdev->state.conn <= C_CONNECTED && get_ldev(mdev)) { - drbd_bitmap_io_from_worker(mdev, &drbd_bm_write, "demote"); + /* No changes to the bitmap expected this time, so assert that, + * even though no harm was done if it did change. */ + drbd_bitmap_io_from_worker(mdev, &drbd_bm_write, + "demote", BM_LOCKED_TEST_ALLOWED); put_ldev(mdev); } @@ -1512,12 +1520,17 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, /* We are in the progress to start a full sync... */ if ((os.conn != C_STARTING_SYNC_T && ns.conn == C_STARTING_SYNC_T) || (os.conn != C_STARTING_SYNC_S && ns.conn == C_STARTING_SYNC_S)) - drbd_queue_bitmap_io(mdev, &drbd_bmio_set_n_write, &abw_start_sync, "set_n_write from StartingSync"); + /* no other bitmap changes expected during this phase */ + drbd_queue_bitmap_io(mdev, + &drbd_bmio_set_n_write, &abw_start_sync, + "set_n_write from StartingSync", BM_LOCKED_TEST_ALLOWED); /* We are invalidating our self... */ if (os.conn < C_CONNECTED && ns.conn < C_CONNECTED && os.disk > D_INCONSISTENT && ns.disk == D_INCONSISTENT) - drbd_queue_bitmap_io(mdev, &drbd_bmio_set_n_write, NULL, "set_n_write from invalidate"); + /* other bitmap operation expected during this phase */ + drbd_queue_bitmap_io(mdev, &drbd_bmio_set_n_write, NULL, + "set_n_write from invalidate", BM_LOCKED_MASK); /* first half of local IO error, failure to attach, * or administrative detach */ @@ -1599,14 +1612,14 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, /* This triggers bitmap writeout of potentially still unwritten pages * if the resync finished cleanly, or aborted because of peer disk - * failure. Resync aborted because of connection failure does bitmap - * writeout from drbd_disconnect. + * failure, or because of connection loss. * For resync aborted because of local disk failure, we cannot do * any bitmap writeout anymore. + * No harm done if some bits change during this phase. */ - if (os.conn > C_CONNECTED && ns.conn == C_CONNECTED && - mdev->state.conn == C_CONNECTED && get_ldev(mdev)) { - drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL, "write from resync_finished"); + if (os.conn > C_CONNECTED && ns.conn <= C_CONNECTED && get_ldev(mdev)) { + drbd_queue_bitmap_io(mdev, &drbd_bm_write, NULL, + "write from resync_finished", BM_LOCKED_SET_ALLOWED); put_ldev(mdev); } @@ -3929,7 +3942,7 @@ static int w_bitmap_io(struct drbd_conf *mdev, struct drbd_work *w, int unused) D_ASSERT(atomic_read(&mdev->ap_bio_cnt) == 0); if (get_ldev(mdev)) { - drbd_bm_lock(mdev, work->why); + drbd_bm_lock(mdev, work->why, work->flags); rv = work->io_fn(mdev); drbd_bm_unlock(mdev); put_ldev(mdev); @@ -3944,6 +3957,7 @@ static int w_bitmap_io(struct drbd_conf *mdev, struct drbd_work *w, int unused) clear_bit(BITMAP_IO_QUEUED, &mdev->flags); work->why = NULL; + work->flags = 0; return 1; } @@ -3998,7 +4012,7 @@ void drbd_go_diskless(struct drbd_conf *mdev) void drbd_queue_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), void (*done)(struct drbd_conf *, int), - char *why) + char *why, enum bm_flag flags) { D_ASSERT(current == mdev->worker.task); @@ -4012,6 +4026,7 @@ void drbd_queue_bitmap_io(struct drbd_conf *mdev, mdev->bm_io_work.io_fn = io_fn; mdev->bm_io_work.done = done; mdev->bm_io_work.why = why; + mdev->bm_io_work.flags = flags; spin_lock_irq(&mdev->req_lock); set_bit(BITMAP_IO, &mdev->flags); @@ -4031,19 +4046,22 @@ void drbd_queue_bitmap_io(struct drbd_conf *mdev, * freezes application IO while that the actual IO operations runs. This * functions MAY NOT be called from worker context. */ -int drbd_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), char *why) +int drbd_bitmap_io(struct drbd_conf *mdev, int (*io_fn)(struct drbd_conf *), + char *why, enum bm_flag flags) { int rv; D_ASSERT(current != mdev->worker.task); - drbd_suspend_io(mdev); + if ((flags & BM_LOCKED_SET_ALLOWED) == 0) + drbd_suspend_io(mdev); - drbd_bm_lock(mdev, why); + drbd_bm_lock(mdev, why, flags); rv = io_fn(mdev); drbd_bm_unlock(mdev); - drbd_resume_io(mdev); + if ((flags & BM_LOCKED_SET_ALLOWED) == 0) + drbd_resume_io(mdev); return rv; } diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index ce6f2fe80852..bc0bcb964603 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -648,7 +648,9 @@ enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev, enum dds_ dev_info(DEV, "Writing the whole bitmap, %s\n", la_size_changed && md_moved ? "size changed and md moved" : la_size_changed ? "size changed" : "md moved"); - err = drbd_bitmap_io(mdev, &drbd_bm_write, "size changed"); /* does drbd_resume_io() ! */ + /* next line implicitly does drbd_suspend_io()+drbd_resume_io() */ + err = drbd_bitmap_io(mdev, &drbd_bm_write, + "size changed", BM_LOCKED_MASK); if (err) { rv = dev_size_error; goto out; @@ -1160,12 +1162,14 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp if (drbd_md_test_flag(mdev->ldev, MDF_FULL_SYNC)) { dev_info(DEV, "Assuming that all blocks are out of sync " "(aka FullSync)\n"); - if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write, "set_n_write from attaching")) { + if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write, + "set_n_write from attaching", BM_LOCKED_MASK)) { retcode = ERR_IO_MD_DISK; goto force_diskless_dec; } } else { - if (drbd_bitmap_io(mdev, &drbd_bm_read, "read from attaching") < 0) { + if (drbd_bitmap_io(mdev, &drbd_bm_read, + "read from attaching", BM_LOCKED_MASK) < 0) { retcode = ERR_IO_MD_DISK; goto force_diskless_dec; } @@ -1173,7 +1177,8 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp if (cp_discovered) { drbd_al_apply_to_bm(mdev); - if (drbd_bitmap_io(mdev, &drbd_bm_write, "crashed primary apply AL")) { + if (drbd_bitmap_io(mdev, &drbd_bm_write, + "crashed primary apply AL", BM_LOCKED_MASK)) { retcode = ERR_IO_MD_DISK; goto force_diskless_dec; } @@ -1925,7 +1930,8 @@ static int drbd_nl_invalidate_peer(struct drbd_conf *mdev, struct drbd_nl_cfg_re retcode = drbd_request_state(mdev, NS(pdsk, D_INCONSISTENT)); if (retcode >= SS_SUCCESS) { if (drbd_bitmap_io(mdev, &drbd_bmio_set_susp_al, - "set_n_write from invalidate_peer")) + "set_n_write from invalidate_peer", + BM_LOCKED_SET_ALLOWED)) retcode = ERR_IO_MD_DISK; } } else @@ -2143,7 +2149,8 @@ static int drbd_nl_new_c_uuid(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl drbd_uuid_new_current(mdev); /* New current, previous to UI_BITMAP */ if (args.clear_bm) { - err = drbd_bitmap_io(mdev, &drbd_bmio_clear_n_write, "clear_n_write from new_c_uuid"); + err = drbd_bitmap_io(mdev, &drbd_bmio_clear_n_write, + "clear_n_write from new_c_uuid", BM_LOCKED_MASK); if (err) { dev_err(DEV, "Writing bitmap failed with %d\n",err); retcode = ERR_IO_MD_DISK; diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index e5686a81f42c..e13134f83fae 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -2599,7 +2599,8 @@ static enum drbd_conns drbd_sync_handshake(struct drbd_conf *mdev, enum drbd_rol if (abs(hg) >= 2) { dev_info(DEV, "Writing the whole bitmap, full sync required after drbd_sync_handshake.\n"); - if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write, "set_n_write from sync_handshake")) + if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write, "set_n_write from sync_handshake", + BM_LOCKED_SET_ALLOWED)) return C_MASK; } @@ -3053,7 +3054,8 @@ static int receive_uuids(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned if (skip_initial_sync) { dev_info(DEV, "Accepted new current UUID, preparing to skip initial sync\n"); drbd_bitmap_io(mdev, &drbd_bmio_clear_n_write, - "clear_n_write from receive_uuids"); + "clear_n_write from receive_uuids", + BM_LOCKED_TEST_ALLOWED); _drbd_uuid_set(mdev, UI_CURRENT, p_uuid[UI_CURRENT]); _drbd_uuid_set(mdev, UI_BITMAP, 0); _drbd_set_state(_NS2(mdev, disk, D_UP_TO_DATE, pdsk, D_UP_TO_DATE), @@ -3494,7 +3496,9 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne int ok = false; struct p_header80 *h = &mdev->data.rbuf.header.h80; - /* drbd_bm_lock(mdev, "receive bitmap"); By intention no bm_lock */ + drbd_bm_lock(mdev, "receive bitmap", BM_LOCKED_SET_ALLOWED); + /* you are supposed to send additional out-of-sync information + * if you actually set bits during this phase */ /* maybe we should use some per thread scratch page, * and allocate that during initial device creation? */ @@ -3568,7 +3572,7 @@ static int receive_bitmap(struct drbd_conf *mdev, enum drbd_packets cmd, unsigne ok = true; out: - /* drbd_bm_unlock(mdev); by intention no lock */ + drbd_bm_unlock(mdev); if (ok && mdev->state.conn == C_WF_BITMAP_S) drbd_start_resync(mdev, C_SYNC_SOURCE); free_page((unsigned long) buffer); @@ -3817,7 +3821,6 @@ static void drbd_disconnect(struct drbd_conf *mdev) fp = FP_DONT_CARE; if (get_ldev(mdev)) { - drbd_bitmap_io(mdev, &drbd_bm_write, "write from disconnect"); fp = mdev->ldev->dc.fencing; put_ldev(mdev); } @@ -3846,6 +3849,10 @@ static void drbd_disconnect(struct drbd_conf *mdev) drbd_request_state(mdev, NS(conn, C_STANDALONE)); } + /* serialize with bitmap writeout triggered by the state change, + * if any. */ + wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags)); + /* tcp_close and release of sendpage pages can be deferred. I don't * want to use SO_LINGER, because apparently it can be deferred for * more than 20 seconds (longest time I checked). -- cgit v1.2.3 From 0ddc5549f88dfc4a4c919693e9a86095e89e080b Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 21 Jan 2011 12:35:15 +0100 Subject: drbd: silence some noisy log messages during disconnect If we fail to send the information that we lost our disk, we have no connection, and no disk: no access to data anymore. That is either expected (deconfiguration), or there will be so much noise in the logs that "Sending state failed" is not useful at all. Drop it. If the reason for a shorter than expected receive was a signal, which we sent because we already decided to disconnect, these additional log messages are confusing and useless. This patch follows this pattern: - dev_warn(DEV, "short read expecting header on sock: r=%d\n", r); + if (!signal_pending(current)) + dev_warn(DEV, "short read expecting header on sock: r=%d\n", r); Also make them all dev_warn for consistency. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 6 ++--- drivers/block/drbd/drbd_receiver.c | 45 ++++++++++++++++++++++++-------------- 2 files changed, 31 insertions(+), 20 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index a9e9b496e73b..c3760f33d52c 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1585,8 +1585,6 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, if (drbd_send_state(mdev)) dev_warn(DEV, "Notified peer that I'm now diskless.\n"); - else - dev_err(DEV, "Sending state for being diskless failed\n"); /* corresponding get_ldev in __drbd_set_state * this may finaly trigger drbd_ldev_destroy. */ put_ldev(mdev); @@ -1868,8 +1866,8 @@ int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock, sent = drbd_send(mdev, sock, h, size, msg_flags); ok = (sent == size); - if (!ok) - dev_err(DEV, "short sent %s size=%d sent=%d\n", + if (!ok && !signal_pending(current)) + dev_warn(DEV, "short sent %s size=%d sent=%d\n", cmdname(cmd), (int)size, sent); return ok; } diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index e13134f83fae..a56b107e01eb 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -930,7 +930,8 @@ static int drbd_recv_header(struct drbd_conf *mdev, enum drbd_packets *cmd, unsi r = drbd_recv(mdev, h, sizeof(*h)); if (unlikely(r != sizeof(*h))) { - dev_err(DEV, "short read expecting header on sock: r=%d\n", r); + if (!signal_pending(current)) + dev_warn(DEV, "short read expecting header on sock: r=%d\n", r); return false; } @@ -1229,8 +1230,10 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __ if (dgs) { rr = drbd_recv(mdev, dig_in, dgs); if (rr != dgs) { - dev_warn(DEV, "short read receiving data digest: read %d expected %d\n", - rr, dgs); + if (!signal_pending(current)) + dev_warn(DEV, + "short read receiving data digest: read %d expected %d\n", + rr, dgs); return NULL; } } @@ -1270,8 +1273,9 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __ kunmap(page); if (rr != len) { drbd_free_ee(mdev, e); - dev_warn(DEV, "short read receiving data: read %d expected %d\n", - rr, len); + if (!signal_pending(current)) + dev_warn(DEV, "short read receiving data: read %d expected %d\n", + rr, len); return NULL; } ds -= rr; @@ -1311,8 +1315,10 @@ static int drbd_drain_block(struct drbd_conf *mdev, int data_size) rr = drbd_recv(mdev, data, min_t(int, data_size, PAGE_SIZE)); if (rr != min_t(int, data_size, PAGE_SIZE)) { rv = 0; - dev_warn(DEV, "short read receiving data: read %d expected %d\n", - rr, min_t(int, data_size, PAGE_SIZE)); + if (!signal_pending(current)) + dev_warn(DEV, + "short read receiving data: read %d expected %d\n", + rr, min_t(int, data_size, PAGE_SIZE)); break; } data_size -= rr; @@ -1337,8 +1343,10 @@ static int recv_dless_read(struct drbd_conf *mdev, struct drbd_request *req, if (dgs) { rr = drbd_recv(mdev, dig_in, dgs); if (rr != dgs) { - dev_warn(DEV, "short read receiving data reply digest: read %d expected %d\n", - rr, dgs); + if (!signal_pending(current)) + dev_warn(DEV, + "short read receiving data reply digest: read %d expected %d\n", + rr, dgs); return 0; } } @@ -1359,9 +1367,10 @@ static int recv_dless_read(struct drbd_conf *mdev, struct drbd_request *req, expect); kunmap(bvec->bv_page); if (rr != expect) { - dev_warn(DEV, "short read receiving data reply: " - "read %d expected %d\n", - rr, expect); + if (!signal_pending(current)) + dev_warn(DEV, "short read receiving data reply: " + "read %d expected %d\n", + rr, expect); return 0; } data_size -= rr; @@ -3696,7 +3705,8 @@ static void drbdd(struct drbd_conf *mdev) if (shs) { rv = drbd_recv(mdev, &header->h80.payload, shs); if (unlikely(rv != shs)) { - dev_err(DEV, "short read while reading sub header: rv=%d\n", rv); + if (!signal_pending(current)) + dev_warn(DEV, "short read while reading sub header: rv=%d\n", rv); goto err_out; } } @@ -3953,7 +3963,8 @@ static int drbd_do_handshake(struct drbd_conf *mdev) rv = drbd_recv(mdev, &p->head.payload, expect); if (rv != expect) { - dev_err(DEV, "short read receiving handshake packet: l=%u\n", rv); + if (!signal_pending(current)) + dev_warn(DEV, "short read receiving handshake packet: l=%u\n", rv); return 0; } @@ -4055,7 +4066,8 @@ static int drbd_do_auth(struct drbd_conf *mdev) rv = drbd_recv(mdev, peers_ch, length); if (rv != length) { - dev_err(DEV, "short read AuthChallenge: l=%u\n", rv); + if (!signal_pending(current)) + dev_warn(DEV, "short read AuthChallenge: l=%u\n", rv); rv = 0; goto fail; } @@ -4102,7 +4114,8 @@ static int drbd_do_auth(struct drbd_conf *mdev) rv = drbd_recv(mdev, response , resp_size); if (rv != resp_size) { - dev_err(DEV, "short read receiving AuthResponse: l=%u\n", rv); + if (!signal_pending(current)) + dev_warn(DEV, "short read receiving AuthResponse: l=%u\n", rv); rv = 0; goto fail; } -- cgit v1.2.3 From e636db5b956950b8b9bfbeb766a637f84bae1e3b Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 21 Jan 2011 17:10:37 +0100 Subject: drbd: fix potential imbalance of ap_in_flight When we receive a barrier ack, we walk the ring list of drbd requests in the transfer log of the respective epoch, do some housekeeping, and free those objects. We tried to keep epochs of mirrored and unmirrored drbd requests separate, and assert that no local-only requests are present in a barrier_acked epoch. It turns out that this has quite a number of corner cases and would add bloated code without functional benefit. We now revert the (insufficient) commits drbd: Fixed an issue with AHEAD -> SYNC_SOURCE transitions drbd: Ensure that an epoch contains only requests of one kind and instead fix the processing of barrier acks to cope with a mix of local-only and mirrored requests. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_main.c | 25 ------------------------- drivers/block/drbd/drbd_req.c | 9 +++++---- 2 files changed, 5 insertions(+), 29 deletions(-) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index c3760f33d52c..9043772de400 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -337,23 +337,6 @@ bail: } -/* In C_AHEAD mode only out_of_sync packets are sent for requests. Detach - * those requests from the newsest barrier when changing to an other cstate. - * - * That headless list vanishes when the last request finished its write or - * send out_of_sync packet. */ -static void tl_forget(struct drbd_conf *mdev) -{ - struct drbd_tl_epoch *b; - - if (test_bit(CREATE_BARRIER, &mdev->flags)) - return; - - b = mdev->newest_tle; - list_del(&b->requests); - _tl_add_barrier(mdev, b); -} - /** * _tl_restart() - Walks the transfer log, and applies an action to all requests * @mdev: DRBD device. @@ -1265,14 +1248,6 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns, if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED) drbd_resume_al(mdev); - /* Start a new epoch in case we start to mirror write requests */ - if (!drbd_should_do_remote(os) && drbd_should_do_remote(ns)) - tl_forget(mdev); - - /* Do not add local-only requests to an epoch with mirrored requests */ - if (drbd_should_do_remote(os) && !drbd_should_do_remote(ns)) - set_bit(CREATE_BARRIER, &mdev->flags); - ascw = kmalloc(sizeof(*ascw), GFP_ATOMIC); if (ascw) { ascw->os = os; diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 336937a14d3f..c28be4e5e57c 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -712,10 +712,11 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, dev_err(DEV, "FIXME (barrier_acked but pending)\n"); list_move(&req->tl_requests, &mdev->out_of_sequence_requests); } - D_ASSERT(req->rq_state & RQ_NET_SENT); - req->rq_state |= RQ_NET_DONE; - if (mdev->net_conf->wire_protocol == DRBD_PROT_A) - atomic_sub(req->size>>9, &mdev->ap_in_flight); + if ((req->rq_state & RQ_NET_MASK) != 0) { + req->rq_state |= RQ_NET_DONE; + if (mdev->net_conf->wire_protocol == DRBD_PROT_A) + atomic_sub(req->size>>9, &mdev->ap_in_flight); + } _req_may_be_done(req, m); /* Allowed while state.susp */ break; -- cgit v1.2.3 From 873b0d5f98ab70e4df7a62b2ef0305373f88f330 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Fri, 21 Jan 2011 22:53:48 +0100 Subject: drbd: serialize admin requests for new verify run with pending bitmap io This is an addendum to drbd: serialize admin requests for new resync with pending bitmap io It avoids a race that could trigger "FIXME" assert log messages. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_nl.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index bc0bcb964603..87aaa7fc4d27 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2106,6 +2106,11 @@ static int drbd_nl_start_ov(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, reply->ret_code = ERR_MANDATORY_TAG; return 0; } + + /* If there is still bitmap IO pending, e.g. previous resync or verify + * just being finished, wait for it before requesting a new resync. */ + wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags)); + /* w_make_ov_request expects position to be aligned */ mdev->ov_start_sector = args.start_sector & ~BM_SECT_PER_BIT; reply->ret_code = drbd_request_state(mdev,NS(conn,C_VERIFY_S)); -- cgit v1.2.3 From 039312b6481e2928f3be19fee94c83327d93e4c7 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Fri, 21 Jan 2011 14:13:22 +0100 Subject: drbd: Removed left over, now wrong comments Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_req.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index c28be4e5e57c..94fd5a2be559 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -983,13 +983,7 @@ allocate_barrier: } if (congested) { - /* rs_pending_cnt must be zero, otherwise the two peers - might get different bitmaps. With sane configurations - the resync stalls long before we might want to go into - AHEAD mode. - We could force the resync into PAUSE mode here if - rs_pending_cnt is > 0 ... */ - queue_barrier(mdev); + queue_barrier(mdev); /* last barrier, after mirrored writes */ if (mdev->net_conf->on_congestion == OC_PULL_AHEAD) _drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL); -- cgit v1.2.3 From 10f6d9926cd17afff9dc03c967706419798b4929 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Mon, 24 Jan 2011 14:47:09 +0100 Subject: drbd: don't BUG_ON, if bio_add_page of a single page to an empty bio fails Just deal with it more gracefully, if we fail to add even a single page to an empty bio. We used to BUG_ON() there, but it has been observed in some Xen deployment, so we need to handle that case more robustly now. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 45 +++++++++++++++++++++++++------------- drivers/block/drbd/drbd_worker.c | 7 +++--- 2 files changed, 34 insertions(+), 18 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index a56b107e01eb..9e9fc3413137 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1073,6 +1073,16 @@ void drbd_bump_write_ordering(struct drbd_conf *mdev, enum write_ordering_e wo) * @mdev: DRBD device. * @e: epoch entry * @rw: flag field, see bio->bi_rw + * + * May spread the pages to multiple bios, + * depending on bio_add_page restrictions. + * + * Returns 0 if all bios have been submitted, + * -ENOMEM if we could not allocate enough bios, + * -ENOSPC (any better suggestion?) if we have not been able to bio_add_page a + * single page to an empty bio (which should never happen and likely indicates + * that the lower level IO stack is in some way broken). This has been observed + * on certain Xen deployments. */ /* TODO allocate from our own bio_set. */ int drbd_submit_ee(struct drbd_conf *mdev, struct drbd_epoch_entry *e, @@ -1085,6 +1095,7 @@ int drbd_submit_ee(struct drbd_conf *mdev, struct drbd_epoch_entry *e, unsigned ds = e->size; unsigned n_bios = 0; unsigned nr_pages = (ds + PAGE_SIZE -1) >> PAGE_SHIFT; + int err = -ENOMEM; /* In most cases, we will only need one bio. But in case the lower * level restrictions happen to be different at this offset on this @@ -1110,8 +1121,17 @@ next_bio: page_chain_for_each(page) { unsigned len = min_t(unsigned, ds, PAGE_SIZE); if (!bio_add_page(bio, page, len, 0)) { - /* a single page must always be possible! */ - BUG_ON(bio->bi_vcnt == 0); + /* A single page must always be possible! + * But in case it fails anyways, + * we deal with it, and complain (below). */ + if (bio->bi_vcnt == 0) { + dev_err(DEV, + "bio_add_page failed for len=%u, " + "bi_vcnt=0 (bi_sector=%llu)\n", + len, (unsigned long long)bio->bi_sector); + err = -ENOSPC; + goto fail; + } goto next_bio; } ds -= len; @@ -1137,7 +1157,7 @@ fail: bios = bios->bi_next; bio_put(bio); } - return -ENOMEM; + return err; } static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned int data_size) @@ -1436,9 +1456,8 @@ static int recv_resync_read(struct drbd_conf *mdev, sector_t sector, int data_si if (drbd_submit_ee(mdev, e, WRITE, DRBD_FAULT_RS_WR) == 0) return true; - /* drbd_submit_ee currently fails for one reason only: - * not being able to allocate enough bios. - * Is dropping the connection going to help? */ + /* don't care for the reason here */ + dev_err(DEV, "submit failed, triggering re-connect\n"); spin_lock_irq(&mdev->req_lock); list_del(&e->w.list); spin_unlock_irq(&mdev->req_lock); @@ -1837,9 +1856,8 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned if (drbd_submit_ee(mdev, e, rw, DRBD_FAULT_DT_WR) == 0) return true; - /* drbd_submit_ee currently fails for one reason only: - * not being able to allocate enough bios. - * Is dropping the connection going to help? */ + /* don't care for the reason here */ + dev_err(DEV, "submit failed, triggering re-connect\n"); spin_lock_irq(&mdev->req_lock); list_del(&e->w.list); hlist_del_init(&e->colision); @@ -1848,9 +1866,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned drbd_al_complete_io(mdev, e->sector); out_interrupted: - /* yes, the epoch_size now is imbalanced. - * but we drop the connection anyways, so we don't have a chance to - * receive a barrier... atomic_inc(&mdev->epoch_size); */ + drbd_may_finish_epoch(mdev, e->epoch, EV_PUT + EV_CLEANUP); put_ldev(mdev); drbd_free_ee(mdev, e); return false; @@ -2096,9 +2112,8 @@ submit: if (drbd_submit_ee(mdev, e, READ, fault_type) == 0) return true; - /* drbd_submit_ee currently fails for one reason only: - * not being able to allocate enough bios. - * Is dropping the connection going to help? */ + /* don't care for the reason here */ + dev_err(DEV, "submit failed, triggering re-connect\n"); spin_lock_irq(&mdev->req_lock); list_del(&e->w.list); spin_unlock_irq(&mdev->req_lock); diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index ff0eb308ee4a..cfd324b9f95b 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -369,9 +369,10 @@ static int read_for_csum(struct drbd_conf *mdev, sector_t sector, int size) if (drbd_submit_ee(mdev, e, READ, DRBD_FAULT_RS_RD) == 0) return 0; - /* drbd_submit_ee currently fails for one reason only: - * not being able to allocate enough bios. - * Is dropping the connection going to help? */ + /* If it failed because of ENOMEM, retry should help. If it failed + * because bio_add_page failed (probably broken lower level driver), + * retry may or may not help. + * If it does not, you may need to force disconnect. */ spin_lock_irq(&mdev->req_lock); list_del(&e->w.list); spin_unlock_irq(&mdev->req_lock); -- cgit v1.2.3 From e99dc367b3aafb1ce2d5d92e94834d07b299e1d7 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Mon, 24 Jan 2011 14:58:39 +0100 Subject: drbd: kill dead code This code became obsolete and unused last December with drbd: bitmap keep track of changes vs on-disk bitmap Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 93 ---------------------------------------- 1 file changed, 93 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index 090fc2ce0df4..a6050791401b 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -569,99 +569,6 @@ static void atodb_endio(struct bio *bio, int error) put_ldev(mdev); } -/* sector to word */ -#define S2W(s) ((s)<<(BM_EXT_SHIFT-BM_BLOCK_SHIFT-LN2_BPL)) - -/* activity log to on disk bitmap -- prepare bio unless that sector - * is already covered by previously prepared bios */ -static int atodb_prepare_unless_covered(struct drbd_conf *mdev, - struct bio **bios, - unsigned int enr, - struct drbd_atodb_wait *wc) __must_hold(local) -{ - struct bio *bio; - struct page *page; - sector_t on_disk_sector; - unsigned int page_offset = PAGE_SIZE; - int offset; - int i = 0; - int err = -ENOMEM; - - /* We always write aligned, full 4k blocks, - * so we can ignore the logical_block_size (for now) */ - enr &= ~7U; - on_disk_sector = enr + mdev->ldev->md.md_offset - + mdev->ldev->md.bm_offset; - - D_ASSERT(!(on_disk_sector & 7U)); - - /* Check if that enr is already covered by an already created bio. - * Caution, bios[] is not NULL terminated, - * but only initialized to all NULL. - * For completely scattered activity log, - * the last invocation iterates over all bios, - * and finds the last NULL entry. - */ - while ((bio = bios[i])) { - if (bio->bi_sector == on_disk_sector) - return 0; - i++; - } - /* bios[i] == NULL, the next not yet used slot */ - - /* GFP_KERNEL, we are not in the write-out path */ - bio = bio_alloc(GFP_KERNEL, 1); - if (bio == NULL) - return -ENOMEM; - - if (i > 0) { - const struct bio_vec *prev_bv = bios[i-1]->bi_io_vec; - page_offset = prev_bv->bv_offset + prev_bv->bv_len; - page = prev_bv->bv_page; - } - if (page_offset == PAGE_SIZE) { - page = alloc_page(__GFP_HIGHMEM); - if (page == NULL) - goto out_bio_put; - page_offset = 0; - } else { - get_page(page); - } - - offset = S2W(enr); - drbd_bm_get_lel(mdev, offset, - min_t(size_t, S2W(8), drbd_bm_words(mdev) - offset), - kmap(page) + page_offset); - kunmap(page); - - bio->bi_private = wc; - bio->bi_end_io = atodb_endio; - bio->bi_bdev = mdev->ldev->md_bdev; - bio->bi_sector = on_disk_sector; - - if (bio_add_page(bio, page, 4096, page_offset) != 4096) - goto out_put_page; - - atomic_inc(&wc->count); - /* we already know that we may do this... - * get_ldev_if_state(mdev,D_ATTACHING); - * just get the extra reference, so that the local_cnt reflects - * the number of pending IO requests DRBD at its backing device. - */ - atomic_inc(&mdev->local_cnt); - - bios[i] = bio; - - return 0; - -out_put_page: - err = -EINVAL; - put_page(page); -out_bio_put: - bio_put(bio); - return err; -} - /** * drbd_al_apply_to_bm() - Sets the bitmap to diry(1) where covered ba active AL extents * @mdev: DRBD device. -- cgit v1.2.3 From fdda6544ad4d3284246e717b7108f7f497b45295 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg <lars.ellenberg@linbit.com> Date: Mon, 24 Jan 2011 15:11:01 +0100 Subject: drbd: improve log message if received sector offset exceeds local capacity Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 9e9fc3413137..3d62ac7cdc4a 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1267,7 +1267,8 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __ /* even though we trust out peer, * we sometimes have to double check. */ if (sector + (data_size>>9) > capacity) { - dev_err(DEV, "capacity: %llus < sector: %llus + size: %u\n", + dev_err(DEV, "request from peer beyond end of local disk: " + "capacity: %llus < sector: %llus + size: %u\n", (unsigned long long)capacity, (unsigned long long)sector, data_size); return NULL; -- cgit v1.2.3 From c5a91619793d444e5103ec5841045bf878718398 Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher <agruen@linbit.com> Date: Tue, 25 Jan 2011 17:33:38 +0100 Subject: drbd: Remove unused function atodb_endio() Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_actlog.c | 27 --------------------------- drivers/block/drbd/drbd_worker.c | 15 ++++++--------- include/linux/drbd.h | 2 +- 3 files changed, 7 insertions(+), 37 deletions(-) diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index a6050791401b..2a1642bc451d 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -542,33 +542,6 @@ cancel: return 1; } -static void atodb_endio(struct bio *bio, int error) -{ - struct drbd_atodb_wait *wc = bio->bi_private; - struct drbd_conf *mdev = wc->mdev; - struct page *page; - int uptodate = bio_flagged(bio, BIO_UPTODATE); - - /* strange behavior of some lower level drivers... - * fail the request by clearing the uptodate flag, - * but do not return any error?! */ - if (!error && !uptodate) - error = -EIO; - - drbd_chk_io_error(mdev, error, true); - if (error && wc->error == 0) - wc->error = error; - - if (atomic_dec_and_test(&wc->count)) - complete(&wc->io_done); - - page = bio->bi_io_vec[0].bv_page; - put_page(page); - bio_put(bio); - mdev->bm_writ_cnt++; - put_ldev(mdev); -} - /** * drbd_al_apply_to_bm() - Sets the bitmap to diry(1) where covered ba active AL extents * @mdev: DRBD device. diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index cfd324b9f95b..3d70d8d015d9 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -44,15 +44,12 @@ static int w_make_resync_request(struct drbd_conf *mdev, -/* defined here: - drbd_md_io_complete - drbd_endio_sec - drbd_endio_pri - - * more endio handlers: - atodb_endio in drbd_actlog.c - drbd_bm_async_io_complete in drbd_bitmap.c - +/* endio handlers: + * drbd_md_io_complete (defined here) + * drbd_endio_pri (defined here) + * drbd_endio_sec (defined here) + * bm_async_io_complete (defined in drbd_bitmap.c) + * * For all these callbacks, note the following: * The callbacks will be called in irq context by the IDE drivers, * and in Softirqs/Tasklets/BH context by the SCSI drivers. diff --git a/include/linux/drbd.h b/include/linux/drbd.h index ba5c785d3f7d..d18d673ebc78 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -53,7 +53,7 @@ extern const char *drbd_buildtag(void); -#define REL_VERSION "8.3.9" +#define REL_VERSION "8.3.10" #define API_VERSION 88 #define PRO_VERSION_MIN 86 #define PRO_VERSION_MAX 96 -- cgit v1.2.3 From 7fde2be93080c028c20078a2d6abec8a95891192 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Tue, 1 Mar 2011 11:08:28 +0100 Subject: drbd: Implemented real timeout checking for request processing time Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_int.h | 1 + drivers/block/drbd/drbd_main.c | 3 +++ drivers/block/drbd/drbd_receiver.c | 3 +++ drivers/block/drbd/drbd_req.c | 39 ++++++++++++++++++++++++++++++++++++++ drivers/block/drbd/drbd_req.h | 1 + 5 files changed, 47 insertions(+) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 267d9897ca8c..81030d8d654b 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -990,6 +990,7 @@ struct drbd_conf { struct timer_list resync_timer; struct timer_list md_sync_timer; struct timer_list start_resync_timer; + struct timer_list request_timer; #ifdef DRBD_DEBUG_MD_SYNC struct { unsigned int line; diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 9043772de400..dfc85f32d317 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -3017,12 +3017,15 @@ void drbd_init_set_defaults(struct drbd_conf *mdev) init_timer(&mdev->resync_timer); init_timer(&mdev->md_sync_timer); init_timer(&mdev->start_resync_timer); + init_timer(&mdev->request_timer); mdev->resync_timer.function = resync_timer_fn; mdev->resync_timer.data = (unsigned long) mdev; mdev->md_sync_timer.function = md_sync_timer_fn; mdev->md_sync_timer.data = (unsigned long) mdev; mdev->start_resync_timer.function = start_resync_timer_fn; mdev->start_resync_timer.data = (unsigned long) mdev; + mdev->request_timer.function = request_timer_fn; + mdev->request_timer.data = (unsigned long) mdev; init_waitqueue_head(&mdev->misc_wait); init_waitqueue_head(&mdev->state_wait); diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 3d62ac7cdc4a..fe1564c7d8b6 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -912,6 +912,7 @@ retry: drbd_send_state(mdev); clear_bit(USE_DEGR_WFC_T, &mdev->flags); clear_bit(RESIZE_PENDING, &mdev->flags); + mod_timer(&mdev->request_timer, jiffies + HZ); /* just start it here. */ return 1; @@ -3822,6 +3823,8 @@ static void drbd_disconnect(struct drbd_conf *mdev) atomic_set(&mdev->rs_pending_cnt, 0); wake_up(&mdev->misc_wait); + del_timer(&mdev->request_timer); + /* make sure syncer is stopped and w_resume_next_sg queued */ del_timer_sync(&mdev->resync_timer); resync_timer_fn((unsigned long)mdev); diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 94fd5a2be559..c2cc28a55907 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1194,3 +1194,42 @@ int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct } return limit; } + +void request_timer_fn(unsigned long data) +{ + struct drbd_conf *mdev = (struct drbd_conf *) data; + struct drbd_request *req; /* oldest request */ + struct list_head *le; + unsigned long et = 0; /* effective timeout = ko_count * timeout */ + + if (get_net_conf(mdev)) { + et = mdev->net_conf->timeout*HZ/10 * mdev->net_conf->ko_count; + put_net_conf(mdev); + } + if (!et || mdev->state.conn < C_WF_REPORT_PARAMS) + return; /* Recurring timer stopped */ + + spin_lock_irq(&mdev->req_lock); + le = &mdev->oldest_tle->requests; + if (list_empty(le)) { + spin_unlock_irq(&mdev->req_lock); + mod_timer(&mdev->request_timer, jiffies + et); + return; + } + + le = le->prev; + req = list_entry(le, struct drbd_request, tl_requests); + if (time_is_before_eq_jiffies(req->start_time + et)) { + if (req->rq_state & RQ_NET_PENDING) { + dev_warn(DEV, "Remote failed to finish a request within ko-count * timeout\n"); + _drbd_set_state(_NS(mdev, conn, C_TIMEOUT), CS_VERBOSE, NULL); + } else { + dev_warn(DEV, "Local backing block device frozen?\n"); + mod_timer(&mdev->request_timer, jiffies + et); + } + } else { + mod_timer(&mdev->request_timer, req->start_time + et); + } + + spin_unlock_irq(&mdev->req_lock); +} diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index 32c1f2a31266..32e2c3e6a813 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -322,6 +322,7 @@ extern int __req_mod(struct drbd_request *req, enum drbd_req_event what, struct bio_and_error *m); extern void complete_master_bio(struct drbd_conf *mdev, struct bio_and_error *m); +extern void request_timer_fn(unsigned long data); /* use this if you don't want to deal with calling complete_master_bio() * outside the spinlock, e.g. when walking some list on cleanup. */ -- cgit v1.2.3 From 8f21420ebd5ca5a751e2f606b49b0acd2a2af314 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Tue, 1 Mar 2011 15:52:35 +0100 Subject: drbd: Fixed handling of read errors on a 'VerifyT' node Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_worker.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 3d70d8d015d9..7db29080f363 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1081,25 +1081,27 @@ int w_e_end_ov_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel) if (unlikely(cancel)) goto out; - if (unlikely((e->flags & EE_WAS_ERROR) != 0)) - goto out; - digest_size = crypto_hash_digestsize(mdev->verify_tfm); - /* FIXME if this allocation fails, online verify will not terminate! */ digest = kmalloc(digest_size, GFP_NOIO); - if (digest) { - drbd_csum_ee(mdev, mdev->verify_tfm, e, digest); - inc_rs_pending(mdev); - ok = drbd_send_drequest_csum(mdev, e->sector, e->size, - digest, digest_size, P_OV_REPLY); - if (!ok) - dec_rs_pending(mdev); - kfree(digest); + if (!digest) { + ok = 0; /* terminate the connection in case the allocation failed */ + goto out; } + if (likely(!(e->flags & EE_WAS_ERROR))) + drbd_csum_ee(mdev, mdev->verify_tfm, e, digest); + else + memset(digest, 0, digest_size); + + inc_rs_pending(mdev); + ok = drbd_send_drequest_csum(mdev, e->sector, e->size, + digest, digest_size, P_OV_REPLY); + if (!ok) + dec_rs_pending(mdev); + kfree(digest); + out: drbd_free_ee(mdev, e); - dec_unacked(mdev); return ok; -- cgit v1.2.3 From 7961243b7bdd62d72b47eb2c0bee776c51a8a8e2 Mon Sep 17 00:00:00 2001 From: Philipp Reisner <philipp.reisner@linbit.com> Date: Wed, 2 Mar 2011 23:14:44 +0100 Subject: drbd: Fixed handling of read errors on a 'VerifyS' node Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_worker.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 7db29080f363..f7e6c92f8d03 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1151,10 +1151,6 @@ int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel) eq = !memcmp(digest, di->digest, digest_size); kfree(digest); } - } else { - ok = drbd_send_ack(mdev, P_NEG_RS_DREPLY, e); - if (__ratelimit(&drbd_ratelimit_state)) - dev_err(DEV, "Sending NegDReply. I guess it gets messy.\n"); } dec_unacked(mdev); -- cgit v1.2.3 From 03567812d81dd87a810b2bd1e804f4001de03da5 Mon Sep 17 00:00:00 2001 From: Or Gerlitz <ogerlitz@voltaire.com> Date: Thu, 13 Jan 2011 10:43:40 +0100 Subject: drbd: drop code present under #ifdef which is relevant to 2.6.28 and below Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_req.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index c2cc28a55907..5c0c8be1bb0a 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1127,11 +1127,7 @@ int drbd_make_request(struct request_queue *q, struct bio *bio) const int sps = 1 << HT_SHIFT; /* sectors per slot */ const int mask = sps - 1; const sector_t first_sectors = sps - (sect & mask); - bp = bio_split(bio, -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) - bio_split_pool, -#endif - first_sectors); + bp = bio_split(bio, first_sectors); /* we need to get a "reference count" (ap_bio_cnt) * to avoid races with the disconnect/reconnect/suspend code. -- cgit v1.2.3 From 4d42942cff0785d8a153bafcd62b6870726cd5f1 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Date: Tue, 11 Jan 2011 14:33:35 +0300 Subject: mtd: make MTD_CONCAT support mandatory Move mtdconcat to be an integral part of the mtd core. It's a tiny bit of code, which bears 'say Y if you don't know what to do' note in the Kconfig. OTOH there are several ugly ifdefs depending on the MTD_CONCAT. So, making MTD_CONCAT support mandatory will allow us to clean up code a lot. Kconfig entry is changed to be a bool defaulting to Y, so all code pieces depending on it, will have MTD_CONCAT Kconfig symbol and CONFIG_MTD_CONCAT define. This will be removed in one of next patches. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/Kconfig | 3 ++- drivers/mtd/Makefile | 3 +-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 77414702cb00..c800247c04fb 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -34,7 +34,8 @@ config MTD_TESTS various checks and verifications when loaded. config MTD_CONCAT - tristate "MTD concatenating support" + bool + default y help Support for concatenating several MTD devices into a single (virtual) one. This allows you to have -for example- a JFFS(2) diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index d4e7f25b1ebb..eff3dd53cc05 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -4,11 +4,10 @@ # Core functionality. obj-$(CONFIG_MTD) += mtd.o -mtd-y := mtdcore.o mtdsuper.o +mtd-y := mtdcore.o mtdsuper.o mtdconcat.o mtd-$(CONFIG_MTD_PARTITIONS) += mtdpart.o mtd-$(CONFIG_MTD_OF_PARTS) += ofpart.o -obj-$(CONFIG_MTD_CONCAT) += mtdconcat.o obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o obj-$(CONFIG_MTD_AFS_PARTS) += afs.o -- cgit v1.2.3 From e1d6ee722285278b427007fc3fa4421a0c1b3b3c Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Date: Tue, 11 Jan 2011 14:33:36 +0300 Subject: mtd: drop MTD_CONCAT dependencies from Kconfig As MTD_CONCAT is becoming a part of mtd core, it's no longer necessary to depend on it in Kconfig scripts. Drop such references. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/maps/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 5d37d315fa98..803072a71ed7 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -114,7 +114,7 @@ config MTD_SUN_UFLASH config MTD_SC520CDP tristate "CFI Flash device mapped on AMD SC520 CDP" - depends on X86 && MTD_CFI && MTD_CONCAT + depends on X86 && MTD_CFI help The SC520 CDP board has two banks of CFI-compliant chips and one Dual-in-line JEDEC chip. This 'mapping' driver supports that @@ -262,7 +262,7 @@ config MTD_BCM963XX config MTD_DILNETPC tristate "CFI Flash device mapped on DIL/Net PC" - depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN + depends on X86 && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN help MTD map driver for SSV DIL/Net PC Boards "DNP" and "ADNP". For details, see <http://www.ssv-embedded.de/ssv/pc104/p169.htm> -- cgit v1.2.3 From a8adc3f01b9a757a0d290b2987af6b998697399f Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Date: Tue, 11 Jan 2011 14:33:37 +0300 Subject: mtd: drop CONFIG_MTD_CONCAT ifdefs As MTD_CONCAT is becoming a part of mtd core, it's now meaningless to to check for it in ifdefs. Drop such references from MTD code. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/maps/ceiva.c | 6 ------ drivers/mtd/maps/integrator-flash.c | 10 ---------- drivers/mtd/maps/physmap.c | 8 -------- drivers/mtd/maps/physmap_of.c | 8 -------- drivers/mtd/maps/sa1100-flash.c | 8 -------- 5 files changed, 40 deletions(-) diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c index c09f4f57093e..e5f645b775ad 100644 --- a/drivers/mtd/maps/ceiva.c +++ b/drivers/mtd/maps/ceiva.c @@ -194,16 +194,10 @@ static int __init clps_setup_mtd(struct clps_info *clps, int nr, struct mtd_info * We detected multiple devices. Concatenate * them together. */ -#ifdef CONFIG_MTD_CONCAT *rmtd = mtd_concat_create(subdev, found, "clps flash"); if (*rmtd == NULL) ret = -ENXIO; -#else - printk(KERN_ERR "clps flash: multiple devices " - "found but MTD concat support disabled.\n"); - ret = -ENXIO; -#endif } } diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c index 2aac41bde8b3..e22ff5adbbf4 100644 --- a/drivers/mtd/maps/integrator-flash.c +++ b/drivers/mtd/maps/integrator-flash.c @@ -202,7 +202,6 @@ static int armflash_probe(struct platform_device *dev) if (info->nr_subdev == 1) info->mtd = info->subdev[0].mtd; else if (info->nr_subdev > 1) { -#ifdef CONFIG_MTD_CONCAT struct mtd_info *cdev[info->nr_subdev]; /* @@ -215,11 +214,6 @@ static int armflash_probe(struct platform_device *dev) dev_name(&dev->dev)); if (info->mtd == NULL) err = -ENXIO; -#else - printk(KERN_ERR "armflash: multiple devices found but " - "MTD concat support disabled.\n"); - err = -ENXIO; -#endif } if (err < 0) @@ -244,10 +238,8 @@ static int armflash_probe(struct platform_device *dev) cleanup: if (info->mtd) { del_mtd_partitions(info->mtd); -#ifdef CONFIG_MTD_CONCAT if (info->mtd != info->subdev[0].mtd) mtd_concat_destroy(info->mtd); -#endif } kfree(info->parts); subdev_err: @@ -272,10 +264,8 @@ static int armflash_remove(struct platform_device *dev) if (info) { if (info->mtd) { del_mtd_partitions(info->mtd); -#ifdef CONFIG_MTD_CONCAT if (info->mtd != info->subdev[0].mtd) mtd_concat_destroy(info->mtd); -#endif } kfree(info->parts); diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 4c18b98a3110..7522df4f71f1 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -59,10 +59,8 @@ static int physmap_flash_remove(struct platform_device *dev) #else del_mtd_device(info->cmtd); #endif -#ifdef CONFIG_MTD_CONCAT if (info->cmtd != info->mtd[0]) mtd_concat_destroy(info->cmtd); -#endif } for (i = 0; i < MAX_RESOURCES; i++) { @@ -159,15 +157,9 @@ static int physmap_flash_probe(struct platform_device *dev) /* * We detected multiple devices. Concatenate them together. */ -#ifdef CONFIG_MTD_CONCAT info->cmtd = mtd_concat_create(info->mtd, devices_found, dev_name(&dev->dev)); if (info->cmtd == NULL) err = -ENXIO; -#else - printk(KERN_ERR "physmap-flash: multiple devices " - "found but MTD concat support disabled.\n"); - err = -ENXIO; -#endif } if (err) goto err_out; diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index 8506578e6a35..c85be8312488 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -104,12 +104,10 @@ static int of_flash_remove(struct platform_device *dev) return 0; dev_set_drvdata(&dev->dev, NULL); -#ifdef CONFIG_MTD_CONCAT if (info->cmtd != info->list[0].mtd) { del_mtd_device(info->cmtd); mtd_concat_destroy(info->cmtd); } -#endif if (info->cmtd) { if (OF_FLASH_PARTS(info)) { @@ -334,16 +332,10 @@ static int __devinit of_flash_probe(struct platform_device *dev, /* * We detected multiple devices. Concatenate them together. */ -#ifdef CONFIG_MTD_CONCAT info->cmtd = mtd_concat_create(mtd_list, info->list_size, dev_name(&dev->dev)); if (info->cmtd == NULL) err = -ENXIO; -#else - printk(KERN_ERR "physmap_of: multiple devices " - "found but MTD concat support disabled.\n"); - err = -ENXIO; -#endif } if (err) goto err_out; diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c index f3af87e08ecd..da875908ea8e 100644 --- a/drivers/mtd/maps/sa1100-flash.c +++ b/drivers/mtd/maps/sa1100-flash.c @@ -232,10 +232,8 @@ static void sa1100_destroy(struct sa_info *info, struct flash_platform_data *pla else del_mtd_partitions(info->mtd); #endif -#ifdef CONFIG_MTD_CONCAT if (info->mtd != info->subdev[0].mtd) mtd_concat_destroy(info->mtd); -#endif } kfree(info->parts); @@ -321,7 +319,6 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat) info->mtd = info->subdev[0].mtd; ret = 0; } else if (info->num_subdev > 1) { -#ifdef CONFIG_MTD_CONCAT struct mtd_info *cdev[nr]; /* * We detected multiple devices. Concatenate them together. @@ -333,11 +330,6 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat) plat->name); if (info->mtd == NULL) ret = -ENXIO; -#else - printk(KERN_ERR "SA1100 flash: multiple devices " - "found but MTD concat support disabled.\n"); - ret = -ENXIO; -#endif } if (ret == 0) -- cgit v1.2.3 From 06f2ae3c91ea04b0d640e0dd9cf69a265f5ecda6 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Date: Tue, 11 Jan 2011 14:33:38 +0300 Subject: CRIS: stop checking for MTD_CONCAT As MTD_CONCAT support is becoming an integral part of MTD core, there is no need for it's special treatment. So stop checking for MTD_CONCAT availability. Acked by Jesper Nilsson <jesper.nilsson@axis.com> for merging this via the MTD tree. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- arch/cris/Kconfig | 1 - arch/cris/arch-v10/drivers/axisflashmap.c | 6 ------ arch/cris/arch-v32/drivers/Kconfig | 1 - arch/cris/arch-v32/drivers/axisflashmap.c | 6 ------ 4 files changed, 14 deletions(-) diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig index 0a7a4c11d8b1..82985032233a 100644 --- a/arch/cris/Kconfig +++ b/arch/cris/Kconfig @@ -275,7 +275,6 @@ config ETRAX_AXISFLASHMAP select MTD_CHAR select MTD_BLOCK select MTD_PARTITIONS - select MTD_CONCAT select MTD_COMPLEX_MAPPINGS help This option enables MTD mapping of flash devices. Needed to use diff --git a/arch/cris/arch-v10/drivers/axisflashmap.c b/arch/cris/arch-v10/drivers/axisflashmap.c index b2079703af7e..ed708e19d09e 100644 --- a/arch/cris/arch-v10/drivers/axisflashmap.c +++ b/arch/cris/arch-v10/drivers/axisflashmap.c @@ -234,7 +234,6 @@ static struct mtd_info *flash_probe(void) } if (mtd_cse0 && mtd_cse1) { -#ifdef CONFIG_MTD_CONCAT struct mtd_info *mtds[] = { mtd_cse0, mtd_cse1 }; /* Since the concatenation layer adds a small overhead we @@ -246,11 +245,6 @@ static struct mtd_info *flash_probe(void) */ mtd_cse = mtd_concat_create(mtds, ARRAY_SIZE(mtds), "cse0+cse1"); -#else - printk(KERN_ERR "%s and %s: Cannot concatenate due to kernel " - "(mis)configuration!\n", map_cse0.name, map_cse1.name); - mtd_cse = NULL; -#endif if (!mtd_cse) { printk(KERN_ERR "%s and %s: Concatenation failed!\n", map_cse0.name, map_cse1.name); diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig index a2dd740c5907..1633b120aa81 100644 --- a/arch/cris/arch-v32/drivers/Kconfig +++ b/arch/cris/arch-v32/drivers/Kconfig @@ -406,7 +406,6 @@ config ETRAX_AXISFLASHMAP select MTD_CHAR select MTD_BLOCK select MTD_PARTITIONS - select MTD_CONCAT select MTD_COMPLEX_MAPPINGS help This option enables MTD mapping of flash devices. Needed to use diff --git a/arch/cris/arch-v32/drivers/axisflashmap.c b/arch/cris/arch-v32/drivers/axisflashmap.c index 51e1e85df96d..3d751250271b 100644 --- a/arch/cris/arch-v32/drivers/axisflashmap.c +++ b/arch/cris/arch-v32/drivers/axisflashmap.c @@ -275,7 +275,6 @@ static struct mtd_info *flash_probe(void) } if (count > 1) { -#ifdef CONFIG_MTD_CONCAT /* Since the concatenation layer adds a small overhead we * could try to figure out if the chips in cse0 and cse1 are * identical and reprobe the whole cse0+cse1 window. But since @@ -284,11 +283,6 @@ static struct mtd_info *flash_probe(void) * complicating the probing procedure. */ mtd_total = mtd_concat_create(mtds, count, "cse0+cse1"); -#else - printk(KERN_ERR "%s and %s: Cannot concatenate due to kernel " - "(mis)configuration!\n", map_cse0.name, map_cse1.name); - mtd_toal = NULL; -#endif if (!mtd_total) { printk(KERN_ERR "%s and %s: Concatenation failed!\n", map_cse0.name, map_cse1.name); -- cgit v1.2.3 From f53fdebcc3e1e5d15ffd0b1204d5944b4ceb8a07 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Date: Tue, 11 Jan 2011 14:33:39 +0300 Subject: mtd: drop MTD_CONCAT from Kconfig entirely As there are no more dependencies on MTD_CONCAT or CONFIG_MTD_CONCAT, drop this entry from Kconfig entirely. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/Kconfig | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index c800247c04fb..23088b3372d0 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -33,15 +33,6 @@ config MTD_TESTS should normally be compiled as kernel modules. The modules perform various checks and verifications when loaded. -config MTD_CONCAT - bool - default y - help - Support for concatenating several MTD devices into a single - (virtual) one. This allows you to have -for example- a JFFS(2) - file system spanning multiple physical flash chips. If unsure, - say 'Y'. - config MTD_PARTITIONS bool "MTD partitioning support" help -- cgit v1.2.3 From 83025c824fce44b6d007b9bbc506c4189fb89da1 Mon Sep 17 00:00:00 2001 From: Jamie Iles <jamie@jamieiles.com> Date: Tue, 11 Jan 2011 12:43:49 +0000 Subject: mtd: mpc5121_nfc: don't treat NULL clk as an error clk_get() returns a struct clk cookie to the driver and some platforms may return NULL if they only support a single clock. clk_get() has only failed if it returns a ERR_PTR() encoded pointer. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/mpc5121_nfc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 469e649c911c..ddaf0011aa88 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -29,6 +29,7 @@ #include <linux/clk.h> #include <linux/gfp.h> #include <linux/delay.h> +#include <linux/err.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> @@ -758,9 +759,9 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op, /* Enable NFC clock */ prv->clk = clk_get(dev, "nfc_clk"); - if (!prv->clk) { + if (IS_ERR(prv->clk)) { dev_err(dev, "Unable to acquire NFC clock!\n"); - retval = -ENODEV; + retval = PTR_ERR(prv->clk); goto error; } -- cgit v1.2.3 From ca91facf6babe548b5386993bb2820b7dc9b743d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten <hartleys@visionengravers.com> Date: Tue, 11 Jan 2011 18:37:25 -0600 Subject: mtd: local symbols should be static The three backing_dev_info symbols are only used in this file and should be static. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/mtdcore.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 527cebf58da4..da69bc8a5a7d 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -43,7 +43,7 @@ * backing device capabilities for non-mappable devices (such as NAND flash) * - permits private mappings, copies are taken of the data */ -struct backing_dev_info mtd_bdi_unmappable = { +static struct backing_dev_info mtd_bdi_unmappable = { .capabilities = BDI_CAP_MAP_COPY, }; @@ -52,7 +52,7 @@ struct backing_dev_info mtd_bdi_unmappable = { * - permits private mappings, copies are taken of the data * - permits non-writable shared mappings */ -struct backing_dev_info mtd_bdi_ro_mappable = { +static struct backing_dev_info mtd_bdi_ro_mappable = { .capabilities = (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT | BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP), }; @@ -62,7 +62,7 @@ struct backing_dev_info mtd_bdi_ro_mappable = { * - permits private mappings, copies are taken of the data * - permits non-writable shared mappings */ -struct backing_dev_info mtd_bdi_rw_mappable = { +static struct backing_dev_info mtd_bdi_rw_mappable = { .capabilities = (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT | BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP), -- cgit v1.2.3 From 7f53f12f02b0b60af373a07fcac62b578381308e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten <hartleys@visionengravers.com> Date: Tue, 11 Jan 2011 18:46:10 -0600 Subject: mtd: mtd_blkdevs: local symbols should be static The function blktrans_dev_release and blktrans_dev_put are only used locally in this file and should be static. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/mtd_blkdevs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index e0a2373bf0e2..344ac1037ee7 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -40,7 +40,7 @@ static LIST_HEAD(blktrans_majors); static DEFINE_MUTEX(blktrans_ref_mutex); -void blktrans_dev_release(struct kref *kref) +static void blktrans_dev_release(struct kref *kref) { struct mtd_blktrans_dev *dev = container_of(kref, struct mtd_blktrans_dev, ref); @@ -67,7 +67,7 @@ unlock: return dev; } -void blktrans_dev_put(struct mtd_blktrans_dev *dev) +static void blktrans_dev_put(struct mtd_blktrans_dev *dev) { mutex_lock(&blktrans_ref_mutex); kref_put(&dev->ref, blktrans_dev_release); -- cgit v1.2.3 From cbc6c5e73dfa598b1fa5e67cef28096186e2a7cd Mon Sep 17 00:00:00 2001 From: Hong Xu <hong.xu@atmel.com> Date: Tue, 18 Jan 2011 14:36:05 +0800 Subject: mtd: atmel_nand: Add DMA support to access Nandflash Some SAM9 chips have the ability to perform DMA between CPU and SMC controller. This patch adds DMA support for SAM9RL, SAM9G45, SSAM9G46,AM9M10, SAM9M11. Signed-off-by: Hong Xu <hong.xu@atmel.com> Tested-by: Ryan Mallon <ryan@bluewatersys.com> Acked-by: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/atmel_nand.c | 166 +++++++++++++++++++++++++++++++++++++++--- 1 file changed, 157 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index ccce0f03b5dc..6fae04b3fc6d 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -48,6 +48,9 @@ #define no_ecc 0 #endif +static int use_dma = 1; +module_param(use_dma, int, 0); + static int on_flash_bbt = 0; module_param(on_flash_bbt, int, 0); @@ -89,11 +92,20 @@ struct atmel_nand_host { struct nand_chip nand_chip; struct mtd_info mtd; void __iomem *io_base; + dma_addr_t io_phys; struct atmel_nand_data *board; struct device *dev; void __iomem *ecc; + + struct completion comp; + struct dma_chan *dma_chan; }; +static int cpu_has_dma(void) +{ + return cpu_is_at91sam9rl() || cpu_is_at91sam9g45(); +} + /* * Enable NAND. */ @@ -150,7 +162,7 @@ static int atmel_nand_device_ready(struct mtd_info *mtd) /* * Minimal-overhead PIO for data access. */ -static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len) +static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len) { struct nand_chip *nand_chip = mtd->priv; @@ -164,7 +176,7 @@ static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len) __raw_readsw(nand_chip->IO_ADDR_R, buf, len / 2); } -static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len) +static void atmel_write_buf8(struct mtd_info *mtd, const u8 *buf, int len) { struct nand_chip *nand_chip = mtd->priv; @@ -178,6 +190,121 @@ static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len) __raw_writesw(nand_chip->IO_ADDR_W, buf, len / 2); } +static void dma_complete_func(void *completion) +{ + complete(completion); +} + +static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len, + int is_read) +{ + struct dma_device *dma_dev; + enum dma_ctrl_flags flags; + dma_addr_t dma_src_addr, dma_dst_addr, phys_addr; + struct dma_async_tx_descriptor *tx = NULL; + dma_cookie_t cookie; + struct nand_chip *chip = mtd->priv; + struct atmel_nand_host *host = chip->priv; + void *p = buf; + int err = -EIO; + enum dma_data_direction dir = is_read ? DMA_FROM_DEVICE : DMA_TO_DEVICE; + + if (buf >= high_memory) { + struct page *pg; + + if (((size_t)buf & PAGE_MASK) != + ((size_t)(buf + len - 1) & PAGE_MASK)) { + dev_warn(host->dev, "Buffer not fit in one page\n"); + goto err_buf; + } + + pg = vmalloc_to_page(buf); + if (pg == 0) { + dev_err(host->dev, "Failed to vmalloc_to_page\n"); + goto err_buf; + } + p = page_address(pg) + ((size_t)buf & ~PAGE_MASK); + } + + dma_dev = host->dma_chan->device; + + flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP | + DMA_COMPL_SKIP_DEST_UNMAP; + + phys_addr = dma_map_single(dma_dev->dev, p, len, dir); + if (dma_mapping_error(dma_dev->dev, phys_addr)) { + dev_err(host->dev, "Failed to dma_map_single\n"); + goto err_buf; + } + + if (is_read) { + dma_src_addr = host->io_phys; + dma_dst_addr = phys_addr; + } else { + dma_src_addr = phys_addr; + dma_dst_addr = host->io_phys; + } + + tx = dma_dev->device_prep_dma_memcpy(host->dma_chan, dma_dst_addr, + dma_src_addr, len, flags); + if (!tx) { + dev_err(host->dev, "Failed to prepare DMA memcpy\n"); + goto err_dma; + } + + init_completion(&host->comp); + tx->callback = dma_complete_func; + tx->callback_param = &host->comp; + + cookie = tx->tx_submit(tx); + if (dma_submit_error(cookie)) { + dev_err(host->dev, "Failed to do DMA tx_submit\n"); + goto err_dma; + } + + dma_async_issue_pending(host->dma_chan); + wait_for_completion(&host->comp); + + err = 0; + +err_dma: + dma_unmap_single(dma_dev->dev, phys_addr, len, dir); +err_buf: + if (err != 0) + dev_warn(host->dev, "Fall back to CPU I/O\n"); + return err; +} + +static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len) +{ + struct nand_chip *chip = mtd->priv; + struct atmel_nand_host *host = chip->priv; + + if (use_dma && len >= mtd->oobsize) + if (atmel_nand_dma_op(mtd, buf, len, 1) == 0) + return; + + if (host->board->bus_width_16) + atmel_read_buf16(mtd, buf, len); + else + atmel_read_buf8(mtd, buf, len); +} + +static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len) +{ + struct nand_chip *chip = mtd->priv; + struct atmel_nand_host *host = chip->priv; + + if (use_dma && len >= mtd->oobsize) + if (atmel_nand_dma_op(mtd, (void *)buf, len, 0) == 0) + return; + + if (host->board->bus_width_16) + atmel_write_buf16(mtd, buf, len); + else + atmel_write_buf8(mtd, buf, len); +} + /* * Calculate HW ECC * @@ -398,6 +525,8 @@ static int __init atmel_nand_probe(struct platform_device *pdev) return -ENOMEM; } + host->io_phys = (dma_addr_t)mem->start; + host->io_base = ioremap(mem->start, mem->end - mem->start + 1); if (host->io_base == NULL) { printk(KERN_ERR "atmel_nand: ioremap failed\n"); @@ -448,14 +577,11 @@ static int __init atmel_nand_probe(struct platform_device *pdev) nand_chip->chip_delay = 20; /* 20us command delay time */ - if (host->board->bus_width_16) { /* 16-bit bus width */ + if (host->board->bus_width_16) /* 16-bit bus width */ nand_chip->options |= NAND_BUSWIDTH_16; - nand_chip->read_buf = atmel_read_buf16; - nand_chip->write_buf = atmel_write_buf16; - } else { - nand_chip->read_buf = atmel_read_buf; - nand_chip->write_buf = atmel_write_buf; - } + + nand_chip->read_buf = atmel_read_buf; + nand_chip->write_buf = atmel_write_buf; platform_set_drvdata(pdev, host); atmel_nand_enable(host); @@ -473,6 +599,22 @@ static int __init atmel_nand_probe(struct platform_device *pdev) nand_chip->options |= NAND_USE_FLASH_BBT; } + if (cpu_has_dma() && use_dma) { + dma_cap_mask_t mask; + + dma_cap_zero(mask); + dma_cap_set(DMA_MEMCPY, mask); + host->dma_chan = dma_request_channel(mask, 0, NULL); + if (!host->dma_chan) { + dev_err(host->dev, "Failed to request DMA channel\n"); + use_dma = 0; + } + } + if (use_dma) + dev_info(host->dev, "Using DMA for NAND access.\n"); + else + dev_info(host->dev, "No DMA support for NAND access.\n"); + /* first scan to find the device and get the page size */ if (nand_scan_ident(mtd, 1, NULL)) { res = -ENXIO; @@ -555,6 +697,8 @@ err_scan_ident: err_no_card: atmel_nand_disable(host); platform_set_drvdata(pdev, NULL); + if (host->dma_chan) + dma_release_channel(host->dma_chan); if (host->ecc) iounmap(host->ecc); err_ecc_ioremap: @@ -578,6 +722,10 @@ static int __exit atmel_nand_remove(struct platform_device *pdev) if (host->ecc) iounmap(host->ecc); + + if (host->dma_chan) + dma_release_channel(host->dma_chan); + iounmap(host->io_base); kfree(host); -- cgit v1.2.3 From 771df61949cf2d6ae9ff07e209c80693cdbc9302 Mon Sep 17 00:00:00 2001 From: Holger Brunck <holger.brunck@keymile.com> Date: Mon, 24 Jan 2011 17:45:42 +0100 Subject: mtd: adapt writebufsize calculation for concat If different chips with different writebufsize are concatenated, the writebufsize from the concat device has to be taken from the device with the largest writebuffer. This writebufsize is used later on in the UBI layer for the min I/O size. Signed-off-by: Holger Brunck <holger.brunck@keymile.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/mtdconcat.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index 5f5777bd3f75..5060e608ea5d 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -750,6 +750,7 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to c struct mtd_concat *concat; uint32_t max_erasesize, curr_erasesize; int num_erase_region; + int max_writebufsize = 0; printk(KERN_NOTICE "Concatenating MTD devices:\n"); for (i = 0; i < num_devs; i++) @@ -776,7 +777,12 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to c concat->mtd.size = subdev[0]->size; concat->mtd.erasesize = subdev[0]->erasesize; concat->mtd.writesize = subdev[0]->writesize; - concat->mtd.writebufsize = subdev[0]->writebufsize; + + for (i = 0; i < num_devs; i++) + if (max_writebufsize < subdev[i]->writebufsize) + max_writebufsize = subdev[i]->writebufsize; + concat->mtd.writebufsize = max_writebufsize; + concat->mtd.subpage_sft = subdev[0]->subpage_sft; concat->mtd.oobsize = subdev[0]->oobsize; concat->mtd.oobavail = subdev[0]->oobavail; -- cgit v1.2.3 From 37a23c20181aaddb8019f0a57bcda334412b89f8 Mon Sep 17 00:00:00 2001 From: Gabor Juhos <juhosg@openwrt.org> Date: Tue, 25 Jan 2011 11:20:26 +0100 Subject: mtd: m25p80: add support for the EON EN25F32 chip Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/devices/m25p80.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index e4eba6cc1b2e..8d83a8b31670 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -655,7 +655,8 @@ static const struct spi_device_id m25p_ids[] = { { "at26df161a", INFO(0x1f4601, 0, 64 * 1024, 32, SECT_4K) }, { "at26df321", INFO(0x1f4700, 0, 64 * 1024, 64, SECT_4K) }, - /* EON -- en25pxx */ + /* EON -- en25xxx */ + { "en25f32", INFO(0x1c3116, 0, 64 * 1024, 64, SECT_4K) }, { "en25p32", INFO(0x1c2016, 0, 64 * 1024, 64, 0) }, { "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) }, -- cgit v1.2.3 From 07be303d22ac7e067b8a7172a4043ebe32b74b33 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Date: Wed, 2 Feb 2011 08:53:55 +0200 Subject: mtd: mtdram: initialize writebufsize field Set the 'mtd->writebufsize' field to 64 to mimic modern CFI flashes. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/devices/mtdram.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/devices/mtdram.c b/drivers/mtd/devices/mtdram.c index 26a6e809013d..1483e18971ce 100644 --- a/drivers/mtd/devices/mtdram.c +++ b/drivers/mtd/devices/mtdram.c @@ -121,6 +121,7 @@ int mtdram_init_device(struct mtd_info *mtd, void *mapped_address, mtd->flags = MTD_CAP_RAM; mtd->size = size; mtd->writesize = 1; + mtd->writebufsize = 64; /* Mimic CFI NOR flashes */ mtd->erasesize = MTDRAM_ERASE_SIZE; mtd->priv = mapped_address; -- cgit v1.2.3 From f17f12ce9dd6ec0a8e1f415ecdbaebfce0207464 Mon Sep 17 00:00:00 2001 From: Mathias Krause <minipli@googlemail.com> Date: Sun, 30 Jan 2011 10:31:48 +0100 Subject: mtd: phram: fix memory leak Commit 4f678a58 (mtd: fix memory leaks in phram_setup) missed two cases where the memory allocated for name would be leaked. This commit frees the memory when register_device() fails and on unregister_devices(). Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/devices/phram.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index 52393282eaf1..8d28fa02a5a2 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -117,6 +117,7 @@ static void unregister_devices(void) list_for_each_entry_safe(this, safe, &phram_list, list) { del_mtd_device(&this->mtd); iounmap(this->mtd.priv); + kfree(this->mtd.name); kfree(this); } } @@ -275,6 +276,8 @@ static int phram_setup(const char *val, struct kernel_param *kp) ret = register_device(name, start, len); if (!ret) pr_info("%s device: %#x at %#x\n", name, len, start); + else + kfree(name); return ret; } -- cgit v1.2.3 From 3ee7451a023dd197fcfc1ba46dcce6d8ec5e1b78 Mon Sep 17 00:00:00 2001 From: Julia Lawall <julia@diku.dk> Date: Wed, 2 Feb 2011 18:13:36 +0100 Subject: mtd: ts5500_flash: avoid calling map_destroy on NULL map_destroy dereferences its argument. The call is furthermore only reachable when this argument is NULL. Thus the call is dropped. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression *x; @@ *if (x == NULL) { ... * map_destroy(x); ... return ...; } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/maps/ts5500_flash.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/mtd/maps/ts5500_flash.c b/drivers/mtd/maps/ts5500_flash.c index e2147bf11c88..e02dfa9d4ddd 100644 --- a/drivers/mtd/maps/ts5500_flash.c +++ b/drivers/mtd/maps/ts5500_flash.c @@ -94,7 +94,6 @@ static int __init init_ts5500_map(void) return 0; err1: - map_destroy(mymtd); iounmap(ts5500_map.virt); err2: return rc; -- cgit v1.2.3 From 7b7e905ec2ec511e06279181ca95a892db21e292 Mon Sep 17 00:00:00 2001 From: Roman Tereshonkov <roman.tereshonkov@nokia.com> Date: Thu, 3 Feb 2011 13:45:56 +0200 Subject: mtd: tests: print correct values The ebcnt and pgcnt variable initialization is moved before printk which uses them. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/tests/mtd_subpagetest.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c index 11204e8aab5f..334eae53a3db 100644 --- a/drivers/mtd/tests/mtd_subpagetest.c +++ b/drivers/mtd/tests/mtd_subpagetest.c @@ -394,6 +394,11 @@ static int __init mtd_subpagetest_init(void) } subpgsize = mtd->writesize >> mtd->subpage_sft; + tmp = mtd->size; + do_div(tmp, mtd->erasesize); + ebcnt = tmp; + pgcnt = mtd->erasesize / mtd->writesize; + printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, " "page size %u, subpage size %u, count of eraseblocks %u, " "pages per eraseblock %u, OOB size %u\n", @@ -413,11 +418,6 @@ static int __init mtd_subpagetest_init(void) goto out; } - tmp = mtd->size; - do_div(tmp, mtd->erasesize); - ebcnt = tmp; - pgcnt = mtd->erasesize / mtd->writesize; - err = scan_for_bad_eraseblocks(); if (err) goto out; -- cgit v1.2.3 From 7912a5e7f37512d8d105785046137435b70347ce Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev <kernel@fomichev.me> Date: Mon, 7 Feb 2011 23:48:25 +0300 Subject: mtd: nand: fix pointer NULL pointer dereferencing In 'verify_bbt_descr()', first check the "bd" pointer, then dereference it. Comments amended by Artem. Signed-off-by: Stanislav Fomichev <kernel@fomichev.me> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/nand_bbt.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 6ebd869993aa..a1e8b30078d9 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -1101,12 +1101,16 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td) static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd) { struct nand_chip *this = mtd->priv; - u32 pattern_len = bd->len; - u32 bits = bd->options & NAND_BBT_NRBITS_MSK; + u32 pattern_len; + u32 bits; u32 table_size; if (!bd) return; + + pattern_len = bd->len; + bits = bd->options & NAND_BBT_NRBITS_MSK; + BUG_ON((this->options & NAND_USE_FLASH_BBT_NO_OOB) && !(this->options & NAND_USE_FLASH_BBT)); BUG_ON(!bits); -- cgit v1.2.3 From b085058fe556328443f982d892c9657b3aff9d4a Mon Sep 17 00:00:00 2001 From: Adrian Hunter <adrian.hunter@nokia.com> Date: Tue, 8 Feb 2011 12:02:38 +0200 Subject: mtd: OneNAND: return read error for 4KiB page read When reading using the 4KiB page read function, I/O errors could be ignored if more than 1 page was read at a time. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/onenand/onenand_base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index bac41caa8df7..38e6d76bcc0e 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1132,6 +1132,8 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from, onenand_update_bufferram(mtd, from, !ret); if (ret == -EBADMSG) ret = 0; + if (ret) + break; } this->read_bufferram(mtd, ONENAND_DATARAM, buf, column, thislen); -- cgit v1.2.3 From e6da85685b2dec1e69e58366c22d1f883d6da575 Mon Sep 17 00:00:00 2001 From: Roman Tereshonkov <roman.tereshonkov@nokia.com> Date: Tue, 8 Feb 2011 12:02:42 +0200 Subject: mtd: onenand_base: onenand_verify bugfix for writepage non-aligned address In onenand_verify function the address can be writepage non-aligned. When a page is read for comparing the right offset should be used for "this->verify_buf" to get the right matching with compared "buf" buffer. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/onenand/onenand_base.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 38e6d76bcc0e..4205b9423b89 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1648,11 +1648,10 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, int ret = 0; int thislen, column; + column = addr & (this->writesize - 1); + while (len != 0) { - thislen = min_t(int, this->writesize, len); - column = addr & (this->writesize - 1); - if (column + thislen > this->writesize) - thislen = this->writesize - column; + thislen = min_t(int, this->writesize - column, len); this->command(mtd, ONENAND_CMD_READ, addr, this->writesize); @@ -1666,12 +1665,13 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, this->read_bufferram(mtd, ONENAND_DATARAM, this->verify_buf, 0, mtd->writesize); - if (memcmp(buf, this->verify_buf, thislen)) + if (memcmp(buf, this->verify_buf + column, thislen)) return -EBADMSG; len -= thislen; buf += thislen; addr += thislen; + column = 0; } return 0; -- cgit v1.2.3 From fc7fe7691c6bbd5f8f51a87e759770975c648410 Mon Sep 17 00:00:00 2001 From: Adrian Hunter <adrian.hunter@nokia.com> Date: Tue, 8 Feb 2011 12:02:39 +0200 Subject: mtd: tests: add count parameter to mtd_speedtest By default mtd_speedtest uses all the eraseblocks of the MTD partition being tested. For large partitions a smaller number is sufficient and makes running the test quicker. For that reason, add a parameter 'count' to specify the maximum number of eraseblocks to use for testing. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/tests/mtd_speedtest.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c index 161feeb7b8b9..9bd986ef3b53 100644 --- a/drivers/mtd/tests/mtd_speedtest.c +++ b/drivers/mtd/tests/mtd_speedtest.c @@ -16,7 +16,7 @@ * * Test read and write speed of a MTD device. * - * Author: Adrian Hunter <ext-adrian.hunter@nokia.com> + * Author: Adrian Hunter <adrian.hunter@nokia.com> */ #include <linux/init.h> @@ -33,6 +33,11 @@ static int dev; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); +static int count; +module_param(count, int, S_IRUGO); +MODULE_PARM_DESC(count, "Maximum number of eraseblocks to use " + "(0 means use all)"); + static struct mtd_info *mtd; static unsigned char *iobuf; static unsigned char *bbt; @@ -326,7 +331,10 @@ static int __init mtd_speedtest_init(void) printk(KERN_INFO "\n"); printk(KERN_INFO "=================================================\n"); - printk(PRINT_PREF "MTD device: %d\n", dev); + if (count) + printk(PRINT_PREF "MTD device: %d count: %d\n", dev, count); + else + printk(PRINT_PREF "MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); if (IS_ERR(mtd)) { @@ -353,6 +361,9 @@ static int __init mtd_speedtest_init(void) (unsigned long long)mtd->size, mtd->erasesize, pgsize, ebcnt, pgcnt, mtd->oobsize); + if (count > 0 && count < ebcnt) + ebcnt = count; + err = -ENOMEM; iobuf = kmalloc(mtd->erasesize, GFP_KERNEL); if (!iobuf) { -- cgit v1.2.3 From 4085bcc682e1276ab4ac2da9866daadf944d7167 Mon Sep 17 00:00:00 2001 From: Roman Tereshonkov <roman.tereshonkov@nokia.com> Date: Tue, 8 Feb 2011 12:02:40 +0200 Subject: mtd: tests: add multiblock erase test to the mtd_speedtest New multiblock erase speed test is added to mtd_speedtest. It consists of 2-, 4-, 8-, 16-, 32- and 64-blocks at once multiblock erase tests. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/tests/mtd_speedtest.c | 59 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 57 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c index 9bd986ef3b53..3ce6fce75e07 100644 --- a/drivers/mtd/tests/mtd_speedtest.c +++ b/drivers/mtd/tests/mtd_speedtest.c @@ -94,6 +94,33 @@ static int erase_eraseblock(int ebnum) return 0; } +static int multiblock_erase(int ebnum, int blocks) +{ + int err; + struct erase_info ei; + loff_t addr = ebnum * mtd->erasesize; + + memset(&ei, 0, sizeof(struct erase_info)); + ei.mtd = mtd; + ei.addr = addr; + ei.len = mtd->erasesize * blocks; + + err = mtd->erase(mtd, &ei); + if (err) { + printk(PRINT_PREF "error %d while erasing EB %d, blocks %d\n", + err, ebnum, blocks); + return err; + } + + if (ei.state == MTD_ERASE_FAILED) { + printk(PRINT_PREF "some erase error occurred at EB %d," + "blocks %d\n", ebnum, blocks); + return -EIO; + } + + return 0; +} + static int erase_whole_device(void) { int err; @@ -292,7 +319,10 @@ static long calc_speed(void) ms = (finish.tv_sec - start.tv_sec) * 1000 + (finish.tv_usec - start.tv_usec) / 1000; k = goodebcnt * mtd->erasesize / 1024; - speed = (k * 1000) / ms; + if (ms) + speed = (k * 1000) / ms; + else + speed = 0; return speed; } @@ -325,7 +355,7 @@ out: static int __init mtd_speedtest_init(void) { - int err, i; + int err, i, blocks, j, k; long speed; uint64_t tmp; @@ -495,6 +525,31 @@ static int __init mtd_speedtest_init(void) speed = calc_speed(); printk(PRINT_PREF "erase speed is %ld KiB/s\n", speed); + /* Multi-block erase all eraseblocks */ + for (k = 1; k < 7; k++) { + blocks = 1 << k; + printk(PRINT_PREF "Testing %dx multi-block erase speed\n", + blocks); + start_timing(); + for (i = 0; i < ebcnt; ) { + for (j = 0; j < blocks && (i + j) < ebcnt; j++) + if (bbt[i + j]) + break; + if (j < 1) { + i++; + continue; + } + err = multiblock_erase(i, j); + if (err) + goto out; + cond_resched(); + i += j; + } + stop_timing(); + speed = calc_speed(); + printk(PRINT_PREF "%dx multi-block erase speed is %ld KiB/s\n", + blocks, speed); + } printk(PRINT_PREF "finished\n"); out: kfree(iobuf); -- cgit v1.2.3 From d8f90b2c9d521500bcd4a1ecdcdb283bfdd2186f Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Date: Wed, 9 Feb 2011 17:00:33 +0900 Subject: mtd: m25p80: add support for M25PX64 Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/devices/m25p80.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 8d83a8b31670..3fb981d4bb51 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -729,6 +729,8 @@ static const struct spi_device_id m25p_ids[] = { { "m25pe80", INFO(0x208014, 0, 64 * 1024, 16, 0) }, { "m25pe16", INFO(0x208015, 0, 64 * 1024, 32, SECT_4K) }, + { "m25px64", INFO(0x207117, 0, 64 * 1024, 128, 0) }, + /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */ { "w25x10", INFO(0xef3011, 0, 64 * 1024, 2, SECT_4K) }, { "w25x20", INFO(0xef3012, 0, 64 * 1024, 4, SECT_4K) }, -- cgit v1.2.3 From 13ce77f46c79a3839e4c2ff9722c9416c165f498 Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin <agust@denx.de> Date: Thu, 10 Feb 2011 16:01:46 +0100 Subject: mtd: cfi: fix writebufsize initialization When initializing mtd->writebufsize, we must take into account possible flash chip interleaving. Wrong writebufsize initialization caused UBIFS recovery issues resulting in unmountable UBIFS file system on NOR flash partitions. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/chips/cfi_cmdset_0001.c | 2 +- drivers/mtd/chips/cfi_cmdset_0002.c | 2 +- drivers/mtd/chips/cfi_cmdset_0020.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index 4aaa88f8ab5f..092aef11120c 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -455,7 +455,7 @@ struct mtd_info *cfi_cmdset_0001(struct map_info *map, int primary) mtd->flags = MTD_CAP_NORFLASH; mtd->name = map->name; mtd->writesize = 1; - mtd->writebufsize = 1 << cfi->cfiq->MaxBufWriteSize; + mtd->writebufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize; mtd->reboot_notifier.notifier_call = cfi_intelext_reboot; diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index f072fcfde04e..7e9c4e9c274a 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -440,7 +440,7 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary) mtd->flags = MTD_CAP_NORFLASH; mtd->name = map->name; mtd->writesize = 1; - mtd->writebufsize = 1 << cfi->cfiq->MaxBufWriteSize; + mtd->writebufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize; DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): write buffer size %d\n", __func__, mtd->writebufsize); diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c index c04b7658abe9..ed56ad3884fb 100644 --- a/drivers/mtd/chips/cfi_cmdset_0020.c +++ b/drivers/mtd/chips/cfi_cmdset_0020.c @@ -238,7 +238,7 @@ static struct mtd_info *cfi_staa_setup(struct map_info *map) mtd->resume = cfi_staa_resume; mtd->flags = MTD_CAP_NORFLASH & ~MTD_BIT_WRITEABLE; mtd->writesize = 8; /* FIXME: Should be 0 for STMicro flashes w/out ECC */ - mtd->writebufsize = 1 << cfi->cfiq->MaxBufWriteSize; + mtd->writebufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize; map->fldrv = &cfi_staa_chipdrv; __module_get(THIS_MODULE); mtd->name = map->name; -- cgit v1.2.3 From c7519dbf6f4b4408229d279d799c938ffdd06f21 Mon Sep 17 00:00:00 2001 From: Jarkko Lavinen <jarkko.lavinen@nokia.com> Date: Mon, 14 Feb 2011 16:16:09 +0200 Subject: mtd_blkdevs: Add background processing support Add a new background method into mtd_blktrans_ops, add background support into mtd_blktrans_thread(), and add mtd_blktrans_cease_background(). If the mtd blktrans dev has the background support, the thread will call background function when the request queue becomes empty. The background operation may run as long as needs to until mtd_blktrans_cease_background() tells to stop. Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com> Tested-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/mtd_blkdevs.c | 26 ++++++++++++++++++++++++++ include/linux/mtd/blktrans.h | 2 ++ 2 files changed, 28 insertions(+) diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 344ac1037ee7..e0b5f6442171 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -119,11 +119,22 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr, } } +int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev) +{ + if (kthread_should_stop()) + return 1; + + return !elv_queue_empty(dev->rq); +} +EXPORT_SYMBOL_GPL(mtd_blktrans_cease_background); + static int mtd_blktrans_thread(void *arg) { struct mtd_blktrans_dev *dev = arg; + struct mtd_blktrans_ops *tr = dev->tr; struct request_queue *rq = dev->rq; struct request *req = NULL; + int background_done = 0; spin_lock_irq(rq->queue_lock); @@ -131,6 +142,19 @@ static int mtd_blktrans_thread(void *arg) int res; if (!req && !(req = blk_fetch_request(rq))) { + if (tr->background && !background_done) { + spin_unlock_irq(rq->queue_lock); + mutex_lock(&dev->lock); + tr->background(dev); + mutex_unlock(&dev->lock); + spin_lock_irq(rq->queue_lock); + /* + * Do background processing just once per idle + * period. + */ + background_done = 1; + continue; + } set_current_state(TASK_INTERRUPTIBLE); if (kthread_should_stop()) @@ -152,6 +176,8 @@ static int mtd_blktrans_thread(void *arg) if (!__blk_end_request_cur(req, res)) req = NULL; + + background_done = 0; } if (req) diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h index 26529ebd59cc..66bec4bf2b0a 100644 --- a/include/linux/mtd/blktrans.h +++ b/include/linux/mtd/blktrans.h @@ -62,6 +62,7 @@ struct mtd_blktrans_ops { unsigned long block, char *buffer); int (*discard)(struct mtd_blktrans_dev *dev, unsigned long block, unsigned nr_blocks); + void (*background)(struct mtd_blktrans_dev *dev); /* Block layer ioctls */ int (*getgeo)(struct mtd_blktrans_dev *dev, struct hd_geometry *geo); @@ -85,6 +86,7 @@ extern int register_mtd_blktrans(struct mtd_blktrans_ops *tr); extern int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr); extern int add_mtd_blktrans_dev(struct mtd_blktrans_dev *dev); extern int del_mtd_blktrans_dev(struct mtd_blktrans_dev *dev); +extern int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev); #endif /* __MTD_TRANS_H__ */ -- cgit v1.2.3 From 115ee88c15b55859a8b59c5dccb3882bbd47e542 Mon Sep 17 00:00:00 2001 From: Jarkko Lavinen <jarkko.lavinen@nokia.com> Date: Mon, 14 Feb 2011 16:16:10 +0200 Subject: mtd_blkdevs: Set the maximum discards size Set max_discard_sectors to UINT_MAX. Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com> Tested-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/mtd_blkdevs.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index e0b5f6442171..650511304030 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -405,9 +405,10 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) new->rq->queuedata = new; blk_queue_logical_block_size(new->rq, tr->blksize); - if (tr->discard) - queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, - new->rq); + if (tr->discard) { + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, new->rq); + new->rq->limits.max_discard_sectors = UINT_MAX; + } gd->queue = new->rq; -- cgit v1.2.3 From a321590246202f2598aca2f4ef63b992e8fc97ef Mon Sep 17 00:00:00 2001 From: Jarkko Lavinen <jarkko.lavinen@nokia.com> Date: Mon, 14 Feb 2011 16:16:11 +0200 Subject: mtd: Add mtdswap block driver Add a driver for allowing an mtd device to be used as a block device for swapping. The block device is volatile, and the mapping of swapped pages is not stored on flash. Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com> Tested-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/Kconfig | 18 + drivers/mtd/Makefile | 1 + drivers/mtd/mtdswap.c | 1593 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1612 insertions(+) create mode 100644 drivers/mtd/mtdswap.c diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 23088b3372d0..5fe01d556657 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -325,6 +325,24 @@ config MTD_OOPS To use, add console=ttyMTDx to the kernel command line, where x is the MTD device number to use. +config MTD_SWAP + tristate "Swap on MTD device support" + depends on MTD && SWAP + select MTD_BLKDEVS + help + Provides volatile block device driver on top of mtd partition + suitable for swapping. The mapping of written blocks is not saved. + The driver provides wear leveling by storing erase counter into the + OOB. + +config MTD_SWAP_STRICT + bool "Strict erase error handling" + depends on MTD_SWAP + help + Enables strict tolerance on failed erasures, marking erase blocks bad + right after the first failed operation. With non-strict mode the + erase operation is retried. + source "drivers/mtd/chips/Kconfig" source "drivers/mtd/maps/Kconfig" diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index eff3dd53cc05..d578095fb255 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_RFD_FTL) += rfd_ftl.o obj-$(CONFIG_SSFDC) += ssfdc.o obj-$(CONFIG_SM_FTL) += sm_ftl.o obj-$(CONFIG_MTD_OOPS) += mtdoops.o +obj-$(CONFIG_MTD_SWAP) += mtdswap.o nftl-objs := nftlcore.o nftlmount.o inftl-objs := inftlcore.o inftlmount.o diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c new file mode 100644 index 000000000000..57e6cc30bc42 --- /dev/null +++ b/drivers/mtd/mtdswap.c @@ -0,0 +1,1593 @@ +/* + * Swap block device support for MTDs + * Turns an MTD device into a swap device with block wear leveling + * + * Copyright © 2007,2011 Nokia Corporation. All rights reserved. + * + * Authors: Jarkko Lavinen <jarkko.lavinen@nokia.com> + * + * Based on Richard Purdie's earlier implementation in 2007. Background + * support and lock-less operation written by Adrian Hunter. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/blktrans.h> +#include <linux/rbtree.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/vmalloc.h> +#include <linux/genhd.h> +#include <linux/swap.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include <linux/device.h> +#include <linux/math64.h> + +#define MTDSWAP_PREFIX "mtdswap" + +/* + * The number of free eraseblocks when GC should stop + */ +#define CLEAN_BLOCK_THRESHOLD 20 + +/* + * Number of free eraseblocks below which GC can also collect low frag + * blocks. + */ +#define LOW_FRAG_GC_TRESHOLD 5 + +/* + * Wear level cost amortization. We want to do wear leveling on the background + * without disturbing gc too much. This is made by defining max GC frequency. + * Frequency value 6 means 1/6 of the GC passes will pick an erase block based + * on the biggest wear difference rather than the biggest dirtiness. + * + * The lower freq2 should be chosen so that it makes sure the maximum erase + * difference will decrease even if a malicious application is deliberately + * trying to make erase differences large. + */ +#define MAX_ERASE_DIFF 4000 +#define COLLECT_NONDIRTY_BASE MAX_ERASE_DIFF +#define COLLECT_NONDIRTY_FREQ1 6 +#define COLLECT_NONDIRTY_FREQ2 4 + +#define PAGE_UNDEF UINT_MAX +#define BLOCK_UNDEF UINT_MAX +#define BLOCK_ERROR (UINT_MAX - 1) +#define BLOCK_MAX (UINT_MAX - 2) + +#define EBLOCK_BAD (1 << 0) +#define EBLOCK_NOMAGIC (1 << 1) +#define EBLOCK_BITFLIP (1 << 2) +#define EBLOCK_FAILED (1 << 3) +#define EBLOCK_READERR (1 << 4) +#define EBLOCK_IDX_SHIFT 5 + +struct swap_eb { + struct rb_node rb; + struct rb_root *root; + + unsigned int flags; + unsigned int active_count; + unsigned int erase_count; + unsigned int pad; /* speeds up pointer decremtnt */ +}; + +#define MTDSWAP_ECNT_MIN(rbroot) (rb_entry(rb_first(rbroot), struct swap_eb, \ + rb)->erase_count) +#define MTDSWAP_ECNT_MAX(rbroot) (rb_entry(rb_last(rbroot), struct swap_eb, \ + rb)->erase_count) + +struct mtdswap_tree { + struct rb_root root; + unsigned int count; +}; + +enum { + MTDSWAP_CLEAN, + MTDSWAP_USED, + MTDSWAP_LOWFRAG, + MTDSWAP_HIFRAG, + MTDSWAP_DIRTY, + MTDSWAP_BITFLIP, + MTDSWAP_FAILING, + MTDSWAP_TREE_CNT, +}; + +struct mtdswap_dev { + struct mtd_blktrans_dev *mbd_dev; + struct mtd_info *mtd; + struct device *dev; + + unsigned int *page_data; + unsigned int *revmap; + + unsigned int eblks; + unsigned int spare_eblks; + unsigned int pages_per_eblk; + unsigned int max_erase_count; + struct swap_eb *eb_data; + + struct mtdswap_tree trees[MTDSWAP_TREE_CNT]; + + unsigned long long sect_read_count; + unsigned long long sect_write_count; + unsigned long long mtd_write_count; + unsigned long long mtd_read_count; + unsigned long long discard_count; + unsigned long long discard_page_count; + + unsigned int curr_write_pos; + struct swap_eb *curr_write; + + char *page_buf; + char *oob_buf; + + struct dentry *debugfs_root; +}; + +struct mtdswap_oobdata { + __le16 magic; + __le32 count; +} __attribute__((packed)); + +#define MTDSWAP_MAGIC_CLEAN 0x2095 +#define MTDSWAP_MAGIC_DIRTY (MTDSWAP_MAGIC_CLEAN + 1) +#define MTDSWAP_TYPE_CLEAN 0 +#define MTDSWAP_TYPE_DIRTY 1 +#define MTDSWAP_OOBSIZE sizeof(struct mtdswap_oobdata) + +#define MTDSWAP_ERASE_RETRIES 3 /* Before marking erase block bad */ +#define MTDSWAP_IO_RETRIES 3 + +#ifdef CONFIG_MTD_SWAP_STRICT +#define MTDSWAP_STRICT 1 +#else +#define MTDSWAP_STRICT 0 +#endif + +enum { + MTDSWAP_SCANNED_CLEAN, + MTDSWAP_SCANNED_DIRTY, + MTDSWAP_SCANNED_BITFLIP, + MTDSWAP_SCANNED_BAD, +}; + +/* + * In the worst case mtdswap_writesect() has allocated the last clean + * page from the current block and is then pre-empted by the GC + * thread. The thread can consume a full erase block when moving a + * block. + */ +#define MIN_SPARE_EBLOCKS 2 +#define MIN_ERASE_BLOCKS (MIN_SPARE_EBLOCKS + 1) + +#define TREE_ROOT(d, name) (&d->trees[MTDSWAP_ ## name].root) +#define TREE_EMPTY(d, name) (TREE_ROOT(d, name)->rb_node == NULL) +#define TREE_NONEMPTY(d, name) (!TREE_EMPTY(d, name)) +#define TREE_COUNT(d, name) (d->trees[MTDSWAP_ ## name].count) + +#define MTDSWAP_MBD_TO_MTDSWAP(dev) ((struct mtdswap_dev *)dev->priv) + +static char partitions[128] = ""; +module_param_string(partitions, partitions, sizeof(partitions), 0444); +MODULE_PARM_DESC(partitions, "MTD partition numbers to use as swap " + "partitions=\"1,3,5\""); + +static unsigned int spare_eblocks = 10; +module_param(spare_eblocks, uint, 0444); +MODULE_PARM_DESC(spare_eblocks, "Percentage of spare erase blocks for " + "garbage collection (default 10%)"); + +static bool header; /* false */ +module_param(header, bool, 0444); +MODULE_PARM_DESC(header, + "Include builtin swap header (default 0, without header)"); + +static int mtdswap_gc(struct mtdswap_dev *d, unsigned int background); + +static loff_t mtdswap_eb_offset(struct mtdswap_dev *d, struct swap_eb *eb) +{ + return (loff_t)(eb - d->eb_data) * d->mtd->erasesize; +} + +static void mtdswap_eb_detach(struct mtdswap_dev *d, struct swap_eb *eb) +{ + unsigned int oldidx; + struct mtdswap_tree *tp; + + if (eb->root) { + tp = container_of(eb->root, struct mtdswap_tree, root); + oldidx = tp - &d->trees[0]; + + d->trees[oldidx].count--; + rb_erase(&eb->rb, eb->root); + } +} + +static void __mtdswap_rb_add(struct rb_root *root, struct swap_eb *eb) +{ + struct rb_node **p, *parent = NULL; + struct swap_eb *cur; + + p = &root->rb_node; + while (*p) { + parent = *p; + cur = rb_entry(parent, struct swap_eb, rb); + if (eb->erase_count > cur->erase_count) + p = &(*p)->rb_right; + else + p = &(*p)->rb_left; + } + + rb_link_node(&eb->rb, parent, p); + rb_insert_color(&eb->rb, root); +} + +static void mtdswap_rb_add(struct mtdswap_dev *d, struct swap_eb *eb, int idx) +{ + struct rb_root *root; + + if (eb->root == &d->trees[idx].root) + return; + + mtdswap_eb_detach(d, eb); + root = &d->trees[idx].root; + __mtdswap_rb_add(root, eb); + eb->root = root; + d->trees[idx].count++; +} + +static struct rb_node *mtdswap_rb_index(struct rb_root *root, unsigned int idx) +{ + struct rb_node *p; + unsigned int i; + + p = rb_first(root); + i = 0; + while (i < idx && p) { + p = rb_next(p); + i++; + } + + return p; +} + +static int mtdswap_handle_badblock(struct mtdswap_dev *d, struct swap_eb *eb) +{ + int ret; + loff_t offset; + + d->spare_eblks--; + eb->flags |= EBLOCK_BAD; + mtdswap_eb_detach(d, eb); + eb->root = NULL; + + /* badblocks not supported */ + if (!d->mtd->block_markbad) + return 1; + + offset = mtdswap_eb_offset(d, eb); + dev_warn(d->dev, "Marking bad block at %08llx\n", offset); + ret = d->mtd->block_markbad(d->mtd, offset); + + if (ret) { + dev_warn(d->dev, "Mark block bad failed for block at %08llx " + "error %d\n", offset, ret); + return ret; + } + + return 1; + +} + +static int mtdswap_handle_write_error(struct mtdswap_dev *d, struct swap_eb *eb) +{ + unsigned int marked = eb->flags & EBLOCK_FAILED; + struct swap_eb *curr_write = d->curr_write; + + eb->flags |= EBLOCK_FAILED; + if (curr_write == eb) { + d->curr_write = NULL; + + if (!marked && d->curr_write_pos != 0) { + mtdswap_rb_add(d, eb, MTDSWAP_FAILING); + return 0; + } + } + + return mtdswap_handle_badblock(d, eb); +} + +static int mtdswap_read_oob(struct mtdswap_dev *d, loff_t from, + struct mtd_oob_ops *ops) +{ + int ret = d->mtd->read_oob(d->mtd, from, ops); + + if (ret == -EUCLEAN) + return ret; + + if (ret) { + dev_warn(d->dev, "Read OOB failed %d for block at %08llx\n", + ret, from); + return ret; + } + + if (ops->oobretlen < ops->ooblen) { + dev_warn(d->dev, "Read OOB return short read (%zd bytes not " + "%d) for block at %08llx\n", + ops->oobretlen, ops->ooblen, from); + return -EIO; + } + + return 0; +} + +static int mtdswap_read_markers(struct mtdswap_dev *d, struct swap_eb *eb) +{ + struct mtdswap_oobdata *data, *data2; + int ret; + loff_t offset; + struct mtd_oob_ops ops; + + offset = mtdswap_eb_offset(d, eb); + + /* Check first if the block is bad. */ + if (d->mtd->block_isbad && d->mtd->block_isbad(d->mtd, offset)) + return MTDSWAP_SCANNED_BAD; + + ops.ooblen = 2 * d->mtd->ecclayout->oobavail; + ops.oobbuf = d->oob_buf; + ops.ooboffs = 0; + ops.datbuf = NULL; + ops.mode = MTD_OOB_AUTO; + + ret = mtdswap_read_oob(d, offset, &ops); + + if (ret && ret != -EUCLEAN) + return ret; + + data = (struct mtdswap_oobdata *)d->oob_buf; + data2 = (struct mtdswap_oobdata *) + (d->oob_buf + d->mtd->ecclayout->oobavail); + + if (le16_to_cpu(data->magic) == MTDSWAP_MAGIC_CLEAN) { + eb->erase_count = le32_to_cpu(data->count); + if (ret == -EUCLEAN) + ret = MTDSWAP_SCANNED_BITFLIP; + else { + if (le16_to_cpu(data2->magic) == MTDSWAP_MAGIC_DIRTY) + ret = MTDSWAP_SCANNED_DIRTY; + else + ret = MTDSWAP_SCANNED_CLEAN; + } + } else { + eb->flags |= EBLOCK_NOMAGIC; + ret = MTDSWAP_SCANNED_DIRTY; + } + + return ret; +} + +static int mtdswap_write_marker(struct mtdswap_dev *d, struct swap_eb *eb, + u16 marker) +{ + struct mtdswap_oobdata n; + int ret; + loff_t offset; + struct mtd_oob_ops ops; + + ops.ooboffs = 0; + ops.oobbuf = (uint8_t *)&n; + ops.mode = MTD_OOB_AUTO; + ops.datbuf = NULL; + + if (marker == MTDSWAP_TYPE_CLEAN) { + n.magic = cpu_to_le16(MTDSWAP_MAGIC_CLEAN); + n.count = cpu_to_le32(eb->erase_count); + ops.ooblen = MTDSWAP_OOBSIZE; + offset = mtdswap_eb_offset(d, eb); + } else { + n.magic = cpu_to_le16(MTDSWAP_MAGIC_DIRTY); + ops.ooblen = sizeof(n.magic); + offset = mtdswap_eb_offset(d, eb) + d->mtd->writesize; + } + + ret = d->mtd->write_oob(d->mtd, offset , &ops); + + if (ret) { + dev_warn(d->dev, "Write OOB failed for block at %08llx " + "error %d\n", offset, ret); + if (ret == -EIO || ret == -EBADMSG) + mtdswap_handle_write_error(d, eb); + return ret; + } + + if (ops.oobretlen != ops.ooblen) { + dev_warn(d->dev, "Short OOB write for block at %08llx: " + "%zd not %d\n", + offset, ops.oobretlen, ops.ooblen); + return ret; + } + + return 0; +} + +/* + * Are there any erase blocks without MAGIC_CLEAN header, presumably + * because power was cut off after erase but before header write? We + * need to guestimate the erase count. + */ +static void mtdswap_check_counts(struct mtdswap_dev *d) +{ + struct rb_root hist_root = RB_ROOT; + struct rb_node *medrb; + struct swap_eb *eb; + unsigned int i, cnt, median; + + cnt = 0; + for (i = 0; i < d->eblks; i++) { + eb = d->eb_data + i; + + if (eb->flags & (EBLOCK_NOMAGIC | EBLOCK_BAD | EBLOCK_READERR)) + continue; + + __mtdswap_rb_add(&hist_root, eb); + cnt++; + } + + if (cnt == 0) + return; + + medrb = mtdswap_rb_index(&hist_root, cnt / 2); + median = rb_entry(medrb, struct swap_eb, rb)->erase_count; + + d->max_erase_count = MTDSWAP_ECNT_MAX(&hist_root); + + for (i = 0; i < d->eblks; i++) { + eb = d->eb_data + i; + + if (eb->flags & (EBLOCK_NOMAGIC | EBLOCK_READERR)) + eb->erase_count = median; + + if (eb->flags & (EBLOCK_NOMAGIC | EBLOCK_BAD | EBLOCK_READERR)) + continue; + + rb_erase(&eb->rb, &hist_root); + } +} + +static void mtdswap_scan_eblks(struct mtdswap_dev *d) +{ + int status; + unsigned int i, idx; + struct swap_eb *eb; + + for (i = 0; i < d->eblks; i++) { + eb = d->eb_data + i; + + status = mtdswap_read_markers(d, eb); + if (status < 0) + eb->flags |= EBLOCK_READERR; + else if (status == MTDSWAP_SCANNED_BAD) { + eb->flags |= EBLOCK_BAD; + continue; + } + + switch (status) { + case MTDSWAP_SCANNED_CLEAN: + idx = MTDSWAP_CLEAN; + break; + case MTDSWAP_SCANNED_DIRTY: + case MTDSWAP_SCANNED_BITFLIP: + idx = MTDSWAP_DIRTY; + break; + default: + idx = MTDSWAP_FAILING; + } + + eb->flags |= (idx << EBLOCK_IDX_SHIFT); + } + + mtdswap_check_counts(d); + + for (i = 0; i < d->eblks; i++) { + eb = d->eb_data + i; + + if (eb->flags & EBLOCK_BAD) + continue; + + idx = eb->flags >> EBLOCK_IDX_SHIFT; + mtdswap_rb_add(d, eb, idx); + } +} + +/* + * Place eblk into a tree corresponding to its number of active blocks + * it contains. + */ +static void mtdswap_store_eb(struct mtdswap_dev *d, struct swap_eb *eb) +{ + unsigned int weight = eb->active_count; + unsigned int maxweight = d->pages_per_eblk; + + if (eb == d->curr_write) + return; + + if (eb->flags & EBLOCK_BITFLIP) + mtdswap_rb_add(d, eb, MTDSWAP_BITFLIP); + else if (eb->flags & (EBLOCK_READERR | EBLOCK_FAILED)) + mtdswap_rb_add(d, eb, MTDSWAP_FAILING); + if (weight == maxweight) + mtdswap_rb_add(d, eb, MTDSWAP_USED); + else if (weight == 0) + mtdswap_rb_add(d, eb, MTDSWAP_DIRTY); + else if (weight > (maxweight/2)) + mtdswap_rb_add(d, eb, MTDSWAP_LOWFRAG); + else + mtdswap_rb_add(d, eb, MTDSWAP_HIFRAG); +} + + +static void mtdswap_erase_callback(struct erase_info *done) +{ + wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv; + wake_up(wait_q); +} + +static int mtdswap_erase_block(struct mtdswap_dev *d, struct swap_eb *eb) +{ + struct mtd_info *mtd = d->mtd; + struct erase_info erase; + wait_queue_head_t wq; + unsigned int retries = 0; + int ret; + + eb->erase_count++; + if (eb->erase_count > d->max_erase_count) + d->max_erase_count = eb->erase_count; + +retry: + init_waitqueue_head(&wq); + memset(&erase, 0, sizeof(struct erase_info)); + + erase.mtd = mtd; + erase.callback = mtdswap_erase_callback; + erase.addr = mtdswap_eb_offset(d, eb); + erase.len = mtd->erasesize; + erase.priv = (u_long)&wq; + + ret = mtd->erase(mtd, &erase); + if (ret) { + if (retries++ < MTDSWAP_ERASE_RETRIES && !MTDSWAP_STRICT) { + dev_warn(d->dev, + "erase of erase block %#llx on %s failed", + erase.addr, mtd->name); + yield(); + goto retry; + } + + dev_err(d->dev, "Cannot erase erase block %#llx on %s\n", + erase.addr, mtd->name); + + mtdswap_handle_badblock(d, eb); + return -EIO; + } + + ret = wait_event_interruptible(wq, erase.state == MTD_ERASE_DONE || + erase.state == MTD_ERASE_FAILED); + if (ret) { + dev_err(d->dev, "Interrupted erase block %#llx erassure on %s", + erase.addr, mtd->name); + return -EINTR; + } + + if (erase.state == MTD_ERASE_FAILED) { + if (retries++ < MTDSWAP_ERASE_RETRIES) { + dev_warn(d->dev, + "erase of erase block %#llx on %s failed", + erase.addr, mtd->name); + yield(); + goto retry; + } + + mtdswap_handle_badblock(d, eb); + return -EIO; + } + + return 0; +} + +static int mtdswap_map_free_block(struct mtdswap_dev *d, unsigned int page, + unsigned int *block) +{ + int ret; + struct swap_eb *old_eb = d->curr_write; + struct rb_root *clean_root; + struct swap_eb *eb; + + if (old_eb == NULL || d->curr_write_pos >= d->pages_per_eblk) { + do { + if (TREE_EMPTY(d, CLEAN)) + return -ENOSPC; + + clean_root = TREE_ROOT(d, CLEAN); + eb = rb_entry(rb_first(clean_root), struct swap_eb, rb); + rb_erase(&eb->rb, clean_root); + eb->root = NULL; + TREE_COUNT(d, CLEAN)--; + + ret = mtdswap_write_marker(d, eb, MTDSWAP_TYPE_DIRTY); + } while (ret == -EIO || ret == -EBADMSG); + + if (ret) + return ret; + + d->curr_write_pos = 0; + d->curr_write = eb; + if (old_eb) + mtdswap_store_eb(d, old_eb); + } + + *block = (d->curr_write - d->eb_data) * d->pages_per_eblk + + d->curr_write_pos; + + d->curr_write->active_count++; + d->revmap[*block] = page; + d->curr_write_pos++; + + return 0; +} + +static unsigned int mtdswap_free_page_cnt(struct mtdswap_dev *d) +{ + return TREE_COUNT(d, CLEAN) * d->pages_per_eblk + + d->pages_per_eblk - d->curr_write_pos; +} + +static unsigned int mtdswap_enough_free_pages(struct mtdswap_dev *d) +{ + return mtdswap_free_page_cnt(d) > d->pages_per_eblk; +} + +static int mtdswap_write_block(struct mtdswap_dev *d, char *buf, + unsigned int page, unsigned int *bp, int gc_context) +{ + struct mtd_info *mtd = d->mtd; + struct swap_eb *eb; + size_t retlen; + loff_t writepos; + int ret; + +retry: + if (!gc_context) + while (!mtdswap_enough_free_pages(d)) + if (mtdswap_gc(d, 0) > 0) + return -ENOSPC; + + ret = mtdswap_map_free_block(d, page, bp); + eb = d->eb_data + (*bp / d->pages_per_eblk); + + if (ret == -EIO || ret == -EBADMSG) { + d->curr_write = NULL; + eb->active_count--; + d->revmap[*bp] = PAGE_UNDEF; + goto retry; + } + + if (ret < 0) + return ret; + + writepos = (loff_t)*bp << PAGE_SHIFT; + ret = mtd->write(mtd, writepos, PAGE_SIZE, &retlen, buf); + if (ret == -EIO || ret == -EBADMSG) { + d->curr_write_pos--; + eb->active_count--; + d->revmap[*bp] = PAGE_UNDEF; + mtdswap_handle_write_error(d, eb); + goto retry; + } + + if (ret < 0) { + dev_err(d->dev, "Write to MTD device failed: %d (%d written)", + ret, retlen); + goto err; + } + + if (retlen != PAGE_SIZE) { + dev_err(d->dev, "Short write to MTD device: %d written", + retlen); + ret = -EIO; + goto err; + } + + return ret; + +err: + d->curr_write_pos--; + eb->active_count--; + d->revmap[*bp] = PAGE_UNDEF; + + return ret; +} + +static int mtdswap_move_block(struct mtdswap_dev *d, unsigned int oldblock, + unsigned int *newblock) +{ + struct mtd_info *mtd = d->mtd; + struct swap_eb *eb, *oldeb; + int ret; + size_t retlen; + unsigned int page, retries; + loff_t readpos; + + page = d->revmap[oldblock]; + readpos = (loff_t) oldblock << PAGE_SHIFT; + retries = 0; + +retry: + ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, d->page_buf); + + if (ret < 0 && ret != -EUCLEAN) { + oldeb = d->eb_data + oldblock / d->pages_per_eblk; + oldeb->flags |= EBLOCK_READERR; + + dev_err(d->dev, "Read Error: %d (block %u)\n", ret, + oldblock); + retries++; + if (retries < MTDSWAP_IO_RETRIES) + goto retry; + + goto read_error; + } + + if (retlen != PAGE_SIZE) { + dev_err(d->dev, "Short read: %d (block %u)\n", retlen, + oldblock); + ret = -EIO; + goto read_error; + } + + ret = mtdswap_write_block(d, d->page_buf, page, newblock, 1); + if (ret < 0) { + d->page_data[page] = BLOCK_ERROR; + dev_err(d->dev, "Write error: %d\n", ret); + return ret; + } + + eb = d->eb_data + *newblock / d->pages_per_eblk; + d->page_data[page] = *newblock; + d->revmap[oldblock] = PAGE_UNDEF; + eb = d->eb_data + oldblock / d->pages_per_eblk; + eb->active_count--; + + return 0; + +read_error: + d->page_data[page] = BLOCK_ERROR; + d->revmap[oldblock] = PAGE_UNDEF; + return ret; +} + +static int mtdswap_gc_eblock(struct mtdswap_dev *d, struct swap_eb *eb) +{ + unsigned int i, block, eblk_base, newblock; + int ret, errcode; + + errcode = 0; + eblk_base = (eb - d->eb_data) * d->pages_per_eblk; + + for (i = 0; i < d->pages_per_eblk; i++) { + if (d->spare_eblks < MIN_SPARE_EBLOCKS) + return -ENOSPC; + + block = eblk_base + i; + if (d->revmap[block] == PAGE_UNDEF) + continue; + + ret = mtdswap_move_block(d, block, &newblock); + if (ret < 0 && !errcode) + errcode = ret; + } + + return errcode; +} + +static int __mtdswap_choose_gc_tree(struct mtdswap_dev *d) +{ + int idx, stopat; + + if (TREE_COUNT(d, CLEAN) < LOW_FRAG_GC_TRESHOLD) + stopat = MTDSWAP_LOWFRAG; + else + stopat = MTDSWAP_HIFRAG; + + for (idx = MTDSWAP_BITFLIP; idx >= stopat; idx--) + if (d->trees[idx].root.rb_node != NULL) + return idx; + + return -1; +} + +static int mtdswap_wlfreq(unsigned int maxdiff) +{ + unsigned int h, x, y, dist, base; + + /* + * Calculate linear ramp down from f1 to f2 when maxdiff goes from + * MAX_ERASE_DIFF to MAX_ERASE_DIFF + COLLECT_NONDIRTY_BASE. Similar + * to triangle with height f1 - f1 and width COLLECT_NONDIRTY_BASE. + */ + + dist = maxdiff - MAX_ERASE_DIFF; + if (dist > COLLECT_NONDIRTY_BASE) + dist = COLLECT_NONDIRTY_BASE; + + /* + * Modelling the slop as right angular triangle with base + * COLLECT_NONDIRTY_BASE and height freq1 - freq2. The ratio y/x is + * equal to the ratio h/base. + */ + h = COLLECT_NONDIRTY_FREQ1 - COLLECT_NONDIRTY_FREQ2; + base = COLLECT_NONDIRTY_BASE; + + x = dist - base; + y = (x * h + base / 2) / base; + + return COLLECT_NONDIRTY_FREQ2 + y; +} + +static int mtdswap_choose_wl_tree(struct mtdswap_dev *d) +{ + static unsigned int pick_cnt; + unsigned int i, idx, wear, max; + struct rb_root *root; + + max = 0; + for (i = 0; i <= MTDSWAP_DIRTY; i++) { + root = &d->trees[i].root; + if (root->rb_node == NULL) + continue; + + wear = d->max_erase_count - MTDSWAP_ECNT_MIN(root); + if (wear > max) { + max = wear; + idx = i; + } + } + + if (max > MAX_ERASE_DIFF && pick_cnt >= mtdswap_wlfreq(max) - 1) { + pick_cnt = 0; + return idx; + } + + pick_cnt++; + return -1; +} + +static int mtdswap_choose_gc_tree(struct mtdswap_dev *d, + unsigned int background) +{ + int idx; + + if (TREE_NONEMPTY(d, FAILING) && + (background || (TREE_EMPTY(d, CLEAN) && TREE_EMPTY(d, DIRTY)))) + return MTDSWAP_FAILING; + + idx = mtdswap_choose_wl_tree(d); + if (idx >= MTDSWAP_CLEAN) + return idx; + + return __mtdswap_choose_gc_tree(d); +} + +static struct swap_eb *mtdswap_pick_gc_eblk(struct mtdswap_dev *d, + unsigned int background) +{ + struct rb_root *rp = NULL; + struct swap_eb *eb = NULL; + int idx; + + if (background && TREE_COUNT(d, CLEAN) > CLEAN_BLOCK_THRESHOLD && + TREE_EMPTY(d, DIRTY) && TREE_EMPTY(d, FAILING)) + return NULL; + + idx = mtdswap_choose_gc_tree(d, background); + if (idx < 0) + return NULL; + + rp = &d->trees[idx].root; + eb = rb_entry(rb_first(rp), struct swap_eb, rb); + + rb_erase(&eb->rb, rp); + eb->root = NULL; + d->trees[idx].count--; + return eb; +} + +static unsigned int mtdswap_test_patt(unsigned int i) +{ + return i % 2 ? 0x55555555 : 0xAAAAAAAA; +} + +static unsigned int mtdswap_eblk_passes(struct mtdswap_dev *d, + struct swap_eb *eb) +{ + struct mtd_info *mtd = d->mtd; + unsigned int test, i, j, patt, mtd_pages; + loff_t base, pos; + unsigned int *p1 = (unsigned int *)d->page_buf; + unsigned char *p2 = (unsigned char *)d->oob_buf; + struct mtd_oob_ops ops; + int ret; + + ops.mode = MTD_OOB_AUTO; + ops.len = mtd->writesize; + ops.ooblen = mtd->ecclayout->oobavail; + ops.ooboffs = 0; + ops.datbuf = d->page_buf; + ops.oobbuf = d->oob_buf; + base = mtdswap_eb_offset(d, eb); + mtd_pages = d->pages_per_eblk * PAGE_SIZE / mtd->writesize; + + for (test = 0; test < 2; test++) { + pos = base; + for (i = 0; i < mtd_pages; i++) { + patt = mtdswap_test_patt(test + i); + memset(d->page_buf, patt, mtd->writesize); + memset(d->oob_buf, patt, mtd->ecclayout->oobavail); + ret = mtd->write_oob(mtd, pos, &ops); + if (ret) + goto error; + + pos += mtd->writesize; + } + + pos = base; + for (i = 0; i < mtd_pages; i++) { + ret = mtd->read_oob(mtd, pos, &ops); + if (ret) + goto error; + + patt = mtdswap_test_patt(test + i); + for (j = 0; j < mtd->writesize/sizeof(int); j++) + if (p1[j] != patt) + goto error; + + for (j = 0; j < mtd->ecclayout->oobavail; j++) + if (p2[j] != (unsigned char)patt) + goto error; + + pos += mtd->writesize; + } + + ret = mtdswap_erase_block(d, eb); + if (ret) + goto error; + } + + eb->flags &= ~EBLOCK_READERR; + return 1; + +error: + mtdswap_handle_badblock(d, eb); + return 0; +} + +static int mtdswap_gc(struct mtdswap_dev *d, unsigned int background) +{ + struct swap_eb *eb; + int ret; + + if (d->spare_eblks < MIN_SPARE_EBLOCKS) + return 1; + + eb = mtdswap_pick_gc_eblk(d, background); + if (!eb) + return 1; + + ret = mtdswap_gc_eblock(d, eb); + if (ret == -ENOSPC) + return 1; + + if (eb->flags & EBLOCK_FAILED) { + mtdswap_handle_badblock(d, eb); + return 0; + } + + eb->flags &= ~EBLOCK_BITFLIP; + ret = mtdswap_erase_block(d, eb); + if ((eb->flags & EBLOCK_READERR) && + (ret || !mtdswap_eblk_passes(d, eb))) + return 0; + + if (ret == 0) + ret = mtdswap_write_marker(d, eb, MTDSWAP_TYPE_CLEAN); + + if (ret == 0) + mtdswap_rb_add(d, eb, MTDSWAP_CLEAN); + else if (ret != -EIO && ret != -EBADMSG) + mtdswap_rb_add(d, eb, MTDSWAP_DIRTY); + + return 0; +} + +static void mtdswap_background(struct mtd_blktrans_dev *dev) +{ + struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev); + int ret; + + while (1) { + ret = mtdswap_gc(d, 1); + if (ret || mtd_blktrans_cease_background(dev)) + return; + } +} + +static void mtdswap_cleanup(struct mtdswap_dev *d) +{ + vfree(d->eb_data); + vfree(d->revmap); + vfree(d->page_data); + kfree(d->oob_buf); + kfree(d->page_buf); +} + +static int mtdswap_flush(struct mtd_blktrans_dev *dev) +{ + struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev); + + if (d->mtd->sync) + d->mtd->sync(d->mtd); + return 0; +} + +static unsigned int mtdswap_badblocks(struct mtd_info *mtd, uint64_t size) +{ + loff_t offset; + unsigned int badcnt; + + badcnt = 0; + + if (mtd->block_isbad) + for (offset = 0; offset < size; offset += mtd->erasesize) + if (mtd->block_isbad(mtd, offset)) + badcnt++; + + return badcnt; +} + +static int mtdswap_writesect(struct mtd_blktrans_dev *dev, + unsigned long page, char *buf) +{ + struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev); + unsigned int newblock, mapped; + struct swap_eb *eb; + int ret; + + d->sect_write_count++; + + if (d->spare_eblks < MIN_SPARE_EBLOCKS) + return -ENOSPC; + + if (header) { + /* Ignore writes to the header page */ + if (unlikely(page == 0)) + return 0; + + page--; + } + + mapped = d->page_data[page]; + if (mapped <= BLOCK_MAX) { + eb = d->eb_data + (mapped / d->pages_per_eblk); + eb->active_count--; + mtdswap_store_eb(d, eb); + d->page_data[page] = BLOCK_UNDEF; + d->revmap[mapped] = PAGE_UNDEF; + } + + ret = mtdswap_write_block(d, buf, page, &newblock, 0); + d->mtd_write_count++; + + if (ret < 0) + return ret; + + eb = d->eb_data + (newblock / d->pages_per_eblk); + d->page_data[page] = newblock; + + return 0; +} + +/* Provide a dummy swap header for the kernel */ +static int mtdswap_auto_header(struct mtdswap_dev *d, char *buf) +{ + union swap_header *hd = (union swap_header *)(buf); + + memset(buf, 0, PAGE_SIZE - 10); + + hd->info.version = 1; + hd->info.last_page = d->mbd_dev->size - 1; + hd->info.nr_badpages = 0; + + memcpy(buf + PAGE_SIZE - 10, "SWAPSPACE2", 10); + + return 0; +} + +static int mtdswap_readsect(struct mtd_blktrans_dev *dev, + unsigned long page, char *buf) +{ + struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev); + struct mtd_info *mtd = d->mtd; + unsigned int realblock, retries; + loff_t readpos; + struct swap_eb *eb; + size_t retlen; + int ret; + + d->sect_read_count++; + + if (header) { + if (unlikely(page == 0)) + return mtdswap_auto_header(d, buf); + + page--; + } + + realblock = d->page_data[page]; + if (realblock > BLOCK_MAX) { + memset(buf, 0x0, PAGE_SIZE); + if (realblock == BLOCK_UNDEF) + return 0; + else + return -EIO; + } + + eb = d->eb_data + (realblock / d->pages_per_eblk); + BUG_ON(d->revmap[realblock] == PAGE_UNDEF); + + readpos = (loff_t)realblock << PAGE_SHIFT; + retries = 0; + +retry: + ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, buf); + + d->mtd_read_count++; + if (ret == -EUCLEAN) { + eb->flags |= EBLOCK_BITFLIP; + mtdswap_rb_add(d, eb, MTDSWAP_BITFLIP); + ret = 0; + } + + if (ret < 0) { + dev_err(d->dev, "Read error %d\n", ret); + eb->flags |= EBLOCK_READERR; + mtdswap_rb_add(d, eb, MTDSWAP_FAILING); + retries++; + if (retries < MTDSWAP_IO_RETRIES) + goto retry; + + return ret; + } + + if (retlen != PAGE_SIZE) { + dev_err(d->dev, "Short read %d\n", retlen); + return -EIO; + } + + return 0; +} + +static int mtdswap_discard(struct mtd_blktrans_dev *dev, unsigned long first, + unsigned nr_pages) +{ + struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev); + unsigned long page; + struct swap_eb *eb; + unsigned int mapped; + + d->discard_count++; + + for (page = first; page < first + nr_pages; page++) { + mapped = d->page_data[page]; + if (mapped <= BLOCK_MAX) { + eb = d->eb_data + (mapped / d->pages_per_eblk); + eb->active_count--; + mtdswap_store_eb(d, eb); + d->page_data[page] = BLOCK_UNDEF; + d->revmap[mapped] = PAGE_UNDEF; + d->discard_page_count++; + } else if (mapped == BLOCK_ERROR) { + d->page_data[page] = BLOCK_UNDEF; + d->discard_page_count++; + } + } + + return 0; +} + +static int mtdswap_show(struct seq_file *s, void *data) +{ + struct mtdswap_dev *d = (struct mtdswap_dev *) s->private; + unsigned long sum; + unsigned int count[MTDSWAP_TREE_CNT]; + unsigned int min[MTDSWAP_TREE_CNT]; + unsigned int max[MTDSWAP_TREE_CNT]; + unsigned int i, cw = 0, cwp = 0, cwecount = 0, bb_cnt, mapped, pages; + uint64_t use_size; + char *name[] = {"clean", "used", "low", "high", "dirty", "bitflip", + "failing"}; + + mutex_lock(&d->mbd_dev->lock); + + for (i = 0; i < MTDSWAP_TREE_CNT; i++) { + struct rb_root *root = &d->trees[i].root; + + if (root->rb_node) { + count[i] = d->trees[i].count; + min[i] = rb_entry(rb_first(root), struct swap_eb, + rb)->erase_count; + max[i] = rb_entry(rb_last(root), struct swap_eb, + rb)->erase_count; + } else + count[i] = 0; + } + + if (d->curr_write) { + cw = 1; + cwp = d->curr_write_pos; + cwecount = d->curr_write->erase_count; + } + + sum = 0; + for (i = 0; i < d->eblks; i++) + sum += d->eb_data[i].erase_count; + + use_size = (uint64_t)d->eblks * d->mtd->erasesize; + bb_cnt = mtdswap_badblocks(d->mtd, use_size); + + mapped = 0; + pages = d->mbd_dev->size; + for (i = 0; i < pages; i++) + if (d->page_data[i] != BLOCK_UNDEF) + mapped++; + + mutex_unlock(&d->mbd_dev->lock); + + for (i = 0; i < MTDSWAP_TREE_CNT; i++) { + if (!count[i]) + continue; + + if (min[i] != max[i]) + seq_printf(s, "%s:\t%5d erase blocks, erased min %d, " + "max %d times\n", + name[i], count[i], min[i], max[i]); + else + seq_printf(s, "%s:\t%5d erase blocks, all erased %d " + "times\n", name[i], count[i], min[i]); + } + + if (bb_cnt) + seq_printf(s, "bad:\t%5u erase blocks\n", bb_cnt); + + if (cw) + seq_printf(s, "current erase block: %u pages used, %u free, " + "erased %u times\n", + cwp, d->pages_per_eblk - cwp, cwecount); + + seq_printf(s, "total erasures: %lu\n", sum); + + seq_printf(s, "\n"); + + seq_printf(s, "mtdswap_readsect count: %llu\n", d->sect_read_count); + seq_printf(s, "mtdswap_writesect count: %llu\n", d->sect_write_count); + seq_printf(s, "mtdswap_discard count: %llu\n", d->discard_count); + seq_printf(s, "mtd read count: %llu\n", d->mtd_read_count); + seq_printf(s, "mtd write count: %llu\n", d->mtd_write_count); + seq_printf(s, "discarded pages count: %llu\n", d->discard_page_count); + + seq_printf(s, "\n"); + seq_printf(s, "total pages: %lu\n", pages); + seq_printf(s, "pages mapped: %u\n", mapped); + + return 0; +} + +static int mtdswap_open(struct inode *inode, struct file *file) +{ + return single_open(file, mtdswap_show, inode->i_private); +} + +static const struct file_operations mtdswap_fops = { + .open = mtdswap_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int mtdswap_add_debugfs(struct mtdswap_dev *d) +{ + struct gendisk *gd = d->mbd_dev->disk; + struct device *dev = disk_to_dev(gd); + + struct dentry *root; + struct dentry *dent; + + root = debugfs_create_dir(gd->disk_name, NULL); + if (IS_ERR(root)) + return 0; + + if (!root) { + dev_err(dev, "failed to initialize debugfs\n"); + return -1; + } + + d->debugfs_root = root; + + dent = debugfs_create_file("stats", S_IRUSR, root, d, + &mtdswap_fops); + if (!dent) { + dev_err(d->dev, "debugfs_create_file failed\n"); + debugfs_remove_recursive(root); + d->debugfs_root = NULL; + return -1; + } + + return 0; +} + +static int mtdswap_init(struct mtdswap_dev *d, unsigned int eblocks, + unsigned int spare_cnt) +{ + struct mtd_info *mtd = d->mbd_dev->mtd; + unsigned int i, eblk_bytes, pages, blocks; + int ret = -ENOMEM; + + d->mtd = mtd; + d->eblks = eblocks; + d->spare_eblks = spare_cnt; + d->pages_per_eblk = mtd->erasesize >> PAGE_SHIFT; + + pages = d->mbd_dev->size; + blocks = eblocks * d->pages_per_eblk; + + for (i = 0; i < MTDSWAP_TREE_CNT; i++) + d->trees[i].root = RB_ROOT; + + d->page_data = vmalloc(sizeof(int)*pages); + if (!d->page_data) + goto page_data_fail; + + d->revmap = vmalloc(sizeof(int)*blocks); + if (!d->revmap) + goto revmap_fail; + + eblk_bytes = sizeof(struct swap_eb)*d->eblks; + d->eb_data = vmalloc(eblk_bytes); + if (!d->eb_data) + goto eb_data_fail; + + memset(d->eb_data, 0, eblk_bytes); + for (i = 0; i < pages; i++) + d->page_data[i] = BLOCK_UNDEF; + + for (i = 0; i < blocks; i++) + d->revmap[i] = PAGE_UNDEF; + + d->page_buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!d->page_buf) + goto page_buf_fail; + + d->oob_buf = kmalloc(2 * mtd->ecclayout->oobavail, GFP_KERNEL); + if (!d->oob_buf) + goto oob_buf_fail; + + mtdswap_scan_eblks(d); + + return 0; + +oob_buf_fail: + kfree(d->page_buf); +page_buf_fail: + vfree(d->eb_data); +eb_data_fail: + vfree(d->revmap); +revmap_fail: + vfree(d->page_data); +page_data_fail: + printk(KERN_ERR "%s: init failed (%d)\n", MTDSWAP_PREFIX, ret); + return ret; +} + +static void mtdswap_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) +{ + struct mtdswap_dev *d; + struct mtd_blktrans_dev *mbd_dev; + char *parts; + char *this_opt; + unsigned long part; + unsigned int eblocks, eavailable, bad_blocks, spare_cnt; + uint64_t swap_size, use_size, size_limit; + struct nand_ecclayout *oinfo; + int ret; + + parts = &partitions[0]; + if (!*parts) + return; + + while ((this_opt = strsep(&parts, ",")) != NULL) { + if (strict_strtoul(this_opt, 0, &part) < 0) + return; + + if (mtd->index == part) + break; + } + + if (mtd->index != part) + return; + + if (mtd->erasesize < PAGE_SIZE || mtd->erasesize % PAGE_SIZE) { + printk(KERN_ERR "%s: Erase size %u not multiple of PAGE_SIZE " + "%lu\n", MTDSWAP_PREFIX, mtd->erasesize, PAGE_SIZE); + return; + } + + if (PAGE_SIZE % mtd->writesize || mtd->writesize > PAGE_SIZE) { + printk(KERN_ERR "%s: PAGE_SIZE %lu not multiple of write size" + " %u\n", MTDSWAP_PREFIX, PAGE_SIZE, mtd->writesize); + return; + } + + oinfo = mtd->ecclayout; + if (!mtd->oobsize || !oinfo || oinfo->oobavail < MTDSWAP_OOBSIZE) { + printk(KERN_ERR "%s: Not enough free bytes in OOB, " + "%d available, %u needed.\n", + MTDSWAP_PREFIX, oinfo->oobavail, MTDSWAP_OOBSIZE); + return; + } + + if (spare_eblocks > 100) + spare_eblocks = 100; + + use_size = mtd->size; + size_limit = (uint64_t) BLOCK_MAX * PAGE_SIZE; + + if (mtd->size > size_limit) { + printk(KERN_WARNING "%s: Device too large. Limiting size to " + "%llu bytes\n", MTDSWAP_PREFIX, size_limit); + use_size = size_limit; + } + + eblocks = mtd_div_by_eb(use_size, mtd); + use_size = eblocks * mtd->erasesize; + bad_blocks = mtdswap_badblocks(mtd, use_size); + eavailable = eblocks - bad_blocks; + + if (eavailable < MIN_ERASE_BLOCKS) { + printk(KERN_ERR "%s: Not enough erase blocks. %u available, " + "%d needed\n", MTDSWAP_PREFIX, eavailable, + MIN_ERASE_BLOCKS); + return; + } + + spare_cnt = div_u64((uint64_t)eavailable * spare_eblocks, 100); + + if (spare_cnt < MIN_SPARE_EBLOCKS) + spare_cnt = MIN_SPARE_EBLOCKS; + + if (spare_cnt > eavailable - 1) + spare_cnt = eavailable - 1; + + swap_size = (uint64_t)(eavailable - spare_cnt) * mtd->erasesize + + (header ? PAGE_SIZE : 0); + + printk(KERN_INFO "%s: Enabling MTD swap on device %lu, size %llu KB, " + "%u spare, %u bad blocks\n", + MTDSWAP_PREFIX, part, swap_size / 1024, spare_cnt, bad_blocks); + + d = kzalloc(sizeof(struct mtdswap_dev), GFP_KERNEL); + if (!d) + return; + + mbd_dev = kzalloc(sizeof(struct mtd_blktrans_dev), GFP_KERNEL); + if (!mbd_dev) { + kfree(d); + return; + } + + d->mbd_dev = mbd_dev; + mbd_dev->priv = d; + + mbd_dev->mtd = mtd; + mbd_dev->devnum = mtd->index; + mbd_dev->size = swap_size >> PAGE_SHIFT; + mbd_dev->tr = tr; + + if (!(mtd->flags & MTD_WRITEABLE)) + mbd_dev->readonly = 1; + + if (mtdswap_init(d, eblocks, spare_cnt) < 0) + goto init_failed; + + if (add_mtd_blktrans_dev(mbd_dev) < 0) + goto cleanup; + + d->dev = disk_to_dev(mbd_dev->disk); + + ret = mtdswap_add_debugfs(d); + if (ret < 0) + goto debugfs_failed; + + return; + +debugfs_failed: + del_mtd_blktrans_dev(mbd_dev); + +cleanup: + mtdswap_cleanup(d); + +init_failed: + kfree(mbd_dev); + kfree(d); +} + +static void mtdswap_remove_dev(struct mtd_blktrans_dev *dev) +{ + struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev); + + debugfs_remove_recursive(d->debugfs_root); + del_mtd_blktrans_dev(dev); + mtdswap_cleanup(d); + kfree(d); +} + +static struct mtd_blktrans_ops mtdswap_ops = { + .name = "mtdswap", + .major = 0, + .part_bits = 0, + .blksize = PAGE_SIZE, + .flush = mtdswap_flush, + .readsect = mtdswap_readsect, + .writesect = mtdswap_writesect, + .discard = mtdswap_discard, + .background = mtdswap_background, + .add_mtd = mtdswap_add_mtd, + .remove_dev = mtdswap_remove_dev, + .owner = THIS_MODULE, +}; + +static int __init mtdswap_modinit(void) +{ + return register_mtd_blktrans(&mtdswap_ops); +} + +static void __exit mtdswap_modexit(void) +{ + deregister_mtd_blktrans(&mtdswap_ops); +} + +module_init(mtdswap_modinit); +module_exit(mtdswap_modexit); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jarkko Lavinen <jarkko.lavinen@nokia.com>"); +MODULE_DESCRIPTION("Block device access to an MTD suitable for using as " + "swap space"); -- cgit v1.2.3 From dcfb81d61da1367e52f7f7e3ceff0d0044c3c7ee Mon Sep 17 00:00:00 2001 From: David Griego <dgriego@mvista.com> Date: Tue, 30 Nov 2010 15:32:05 +0530 Subject: mtd: NOR flash driver for OMAP-L137/AM17x OMAP-L137/AM17x has limited number of dedicated EMIFA address pins, enough to interface directly to an SDRAM. If a device such as an asynchronous flash needs to be attached to the EMIFA, then either GPIO pins or a chip select may be used to control the flash device's upper address lines. This patch adds support for the NOR flash on the OMAP-L137/ AM17x user interface daughter board using the latch-addr-flash MTD mapping driver which allows flashes to be partially physically addressed. The upper address lines are set by a board specific code which is a separate patch. Signed-off-by: David Griego <dgriego@mvista.com> Signed-off-by: Aleksey Makarov <amakarov@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Savinay Dharmappa <savinay.dharmappa@ti.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/maps/Kconfig | 9 ++ drivers/mtd/maps/Makefile | 1 + drivers/mtd/maps/latch-addr-flash.c | 272 +++++++++++++++++++++++++++++++++++ include/linux/mtd/latch-addr-flash.h | 29 ++++ 4 files changed, 311 insertions(+) create mode 100644 drivers/mtd/maps/latch-addr-flash.c create mode 100644 include/linux/mtd/latch-addr-flash.h diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 803072a71ed7..44b1f46458ca 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -552,4 +552,13 @@ config MTD_PISMO When built as a module, it will be called pismo.ko +config MTD_LATCH_ADDR + tristate "Latch-assisted Flash Chip Support" + depends on MTD_COMPLEX_MAPPINGS + help + Map driver which allows flashes to be partially physically addressed + and have the upper address lines set by a board specific code. + + If compiled as a module, it will be called latch-addr-flash. + endmenu diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index c7869c7a6b18..08533bd5cba7 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -59,3 +59,4 @@ obj-$(CONFIG_MTD_RBTX4939) += rbtx4939-flash.o obj-$(CONFIG_MTD_VMU) += vmu-flash.o obj-$(CONFIG_MTD_GPIO_ADDR) += gpio-addr-flash.o obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-flash.o +obj-$(CONFIG_MTD_LATCH_ADDR) += latch-addr-flash.o diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c new file mode 100644 index 000000000000..ee2548085334 --- /dev/null +++ b/drivers/mtd/maps/latch-addr-flash.c @@ -0,0 +1,272 @@ +/* + * Interface for NOR flash driver whose high address lines are latched + * + * Copyright © 2000 Nicolas Pitre <nico@cam.org> + * Copyright © 2005-2008 Analog Devices Inc. + * Copyright © 2008 MontaVista Software, Inc. <source@mvista.com> + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/platform_device.h> +#include <linux/mtd/latch-addr-flash.h> +#include <linux/slab.h> + +#define DRIVER_NAME "latch-addr-flash" + +struct latch_addr_flash_info { + struct mtd_info *mtd; + struct map_info map; + struct resource *res; + + void (*set_window)(unsigned long offset, void *data); + void *data; + + /* cache; could be found out of res */ + unsigned long win_mask; + + int nr_parts; + struct mtd_partition *parts; + + spinlock_t lock; +}; + +static map_word lf_read(struct map_info *map, unsigned long ofs) +{ + struct latch_addr_flash_info *info; + map_word datum; + + info = (struct latch_addr_flash_info *)map->map_priv_1; + + spin_lock(&info->lock); + + info->set_window(ofs, info->data); + datum = inline_map_read(map, info->win_mask & ofs); + + spin_unlock(&info->lock); + + return datum; +} + +static void lf_write(struct map_info *map, map_word datum, unsigned long ofs) +{ + struct latch_addr_flash_info *info; + + info = (struct latch_addr_flash_info *)map->map_priv_1; + + spin_lock(&info->lock); + + info->set_window(ofs, info->data); + inline_map_write(map, datum, info->win_mask & ofs); + + spin_unlock(&info->lock); +} + +static void lf_copy_from(struct map_info *map, void *to, + unsigned long from, ssize_t len) +{ + struct latch_addr_flash_info *info = + (struct latch_addr_flash_info *) map->map_priv_1; + unsigned n; + + while (len > 0) { + n = info->win_mask + 1 - (from & info->win_mask); + if (n > len) + n = len; + + spin_lock(&info->lock); + + info->set_window(from, info->data); + memcpy_fromio(to, map->virt + (from & info->win_mask), n); + + spin_unlock(&info->lock); + + to += n; + from += n; + len -= n; + } +} + +static char *rom_probe_types[] = { "cfi_probe", NULL }; + +static char *part_probe_types[] = { "cmdlinepart", NULL }; + +static int latch_addr_flash_remove(struct platform_device *dev) +{ + struct latch_addr_flash_info *info; + struct latch_addr_flash_data *latch_addr_data; + + info = platform_get_drvdata(dev); + if (info == NULL) + return 0; + platform_set_drvdata(dev, NULL); + + latch_addr_data = dev->dev.platform_data; + + if (info->mtd != NULL) { + if (mtd_has_partitions()) { + if (info->nr_parts) { + del_mtd_partitions(info->mtd); + kfree(info->parts); + } else if (latch_addr_data->nr_parts) { + del_mtd_partitions(info->mtd); + } else { + del_mtd_device(info->mtd); + } + } else { + del_mtd_device(info->mtd); + } + map_destroy(info->mtd); + } + + if (info->map.virt != NULL) + iounmap(info->map.virt); + + if (info->res != NULL) + release_mem_region(info->res->start, resource_size(info->res)); + + kfree(info); + + if (latch_addr_data->done) + latch_addr_data->done(latch_addr_data->data); + + return 0; +} + +static int __devinit latch_addr_flash_probe(struct platform_device *dev) +{ + struct latch_addr_flash_data *latch_addr_data; + struct latch_addr_flash_info *info; + resource_size_t win_base = dev->resource->start; + resource_size_t win_size = resource_size(dev->resource); + char **probe_type; + int chipsel; + int err; + + latch_addr_data = dev->dev.platform_data; + if (latch_addr_data == NULL) + return -ENODEV; + + pr_notice("latch-addr platform flash device: %#llx byte " + "window at %#.8llx\n", + (unsigned long long)win_size, (unsigned long long)win_base); + + chipsel = dev->id; + + if (latch_addr_data->init) { + err = latch_addr_data->init(latch_addr_data->data, chipsel); + if (err != 0) + return err; + } + + info = kzalloc(sizeof(struct latch_addr_flash_info), GFP_KERNEL); + if (info == NULL) { + err = -ENOMEM; + goto done; + } + + platform_set_drvdata(dev, info); + + info->res = request_mem_region(win_base, win_size, DRIVER_NAME); + if (info->res == NULL) { + dev_err(&dev->dev, "Could not reserve memory region\n"); + err = -EBUSY; + goto free_info; + } + + info->map.name = DRIVER_NAME; + info->map.size = latch_addr_data->size; + info->map.bankwidth = latch_addr_data->width; + + info->map.phys = NO_XIP; + info->map.virt = ioremap(win_base, win_size); + if (!info->map.virt) { + err = -ENOMEM; + goto free_res; + } + + info->map.map_priv_1 = (unsigned long)info; + + info->map.read = lf_read; + info->map.copy_from = lf_copy_from; + info->map.write = lf_write; + info->set_window = latch_addr_data->set_window; + info->data = latch_addr_data->data; + info->win_mask = win_size - 1; + + spin_lock_init(&info->lock); + + for (probe_type = rom_probe_types; !info->mtd && *probe_type; + probe_type++) + info->mtd = do_map_probe(*probe_type, &info->map); + + if (info->mtd == NULL) { + dev_err(&dev->dev, "map_probe failed\n"); + err = -ENODEV; + goto iounmap; + } + info->mtd->owner = THIS_MODULE; + + if (mtd_has_partitions()) { + + err = parse_mtd_partitions(info->mtd, + (const char **)part_probe_types, + &info->parts, 0); + if (err > 0) { + add_mtd_partitions(info->mtd, info->parts, err); + return 0; + } + if (latch_addr_data->nr_parts) { + pr_notice("Using latch-addr-flash partition information\n"); + add_mtd_partitions(info->mtd, latch_addr_data->parts, + latch_addr_data->nr_parts); + return 0; + } + } + add_mtd_device(info->mtd); + return 0; + +iounmap: + iounmap(info->map.virt); +free_res: + release_mem_region(info->res->start, resource_size(info->res)); +free_info: + kfree(info); +done: + if (latch_addr_data->done) + latch_addr_data->done(latch_addr_data->data); + return err; +} + +static struct platform_driver latch_addr_flash_driver = { + .probe = latch_addr_flash_probe, + .remove = __devexit_p(latch_addr_flash_remove), + .driver = { + .name = DRIVER_NAME, + }, +}; + +static int __init latch_addr_flash_init(void) +{ + return platform_driver_register(&latch_addr_flash_driver); +} +module_init(latch_addr_flash_init); + +static void __exit latch_addr_flash_exit(void) +{ + platform_driver_unregister(&latch_addr_flash_driver); +} +module_exit(latch_addr_flash_exit); + +MODULE_AUTHOR("David Griego <dgriego@mvista.com>"); +MODULE_DESCRIPTION("MTD map driver for flashes addressed physically with upper " + "address lines being set board specifically"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mtd/latch-addr-flash.h b/include/linux/mtd/latch-addr-flash.h new file mode 100644 index 000000000000..e94b8e128074 --- /dev/null +++ b/include/linux/mtd/latch-addr-flash.h @@ -0,0 +1,29 @@ +/* + * Interface for NOR flash driver whose high address lines are latched + * + * Copyright © 2008 MontaVista Software, Inc. <source@mvista.com> + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ +#ifndef __LATCH_ADDR_FLASH__ +#define __LATCH_ADDR_FLASH__ + +struct map_info; +struct mtd_partition; + +struct latch_addr_flash_data { + unsigned int width; + unsigned int size; + + int (*init)(void *data, int cs); + void (*done)(void *data); + void (*set_window)(unsigned long offset, void *data); + void *data; + + unsigned int nr_parts; + struct mtd_partition *parts; +}; + +#endif -- cgit v1.2.3 From b3dcfd35244e1cb8dc8dfa5c05013b133dbb437a Mon Sep 17 00:00:00 2001 From: Roman Tereshonkov <roman.tereshonkov@nokia.com> Date: Thu, 17 Feb 2011 13:44:41 +0200 Subject: mtd: onenand: add new option to control initial onenand unlocking A new option ONENAND_SKIP_INITIAL_UNLOCKING is added. This allows to disable initial onenand unlocking when the driver is initialized. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/onenand/onenand_base.c | 3 ++- include/linux/mtd/onenand.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 4205b9423b89..56a8b2005bda 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -4085,7 +4085,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) mtd->writebufsize = mtd->writesize; /* Unlock whole block */ - this->unlock_all(mtd); + if (!(this->options & ONENAND_SKIP_INITIAL_UNLOCKING)) + this->unlock_all(mtd); ret = this->scan_bbt(mtd); if ((!FLEXONENAND(this)) || ret) diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index ae418e41d8f5..52b6f187bf49 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -198,6 +198,7 @@ struct onenand_chip { #define ONENAND_SKIP_UNLOCK_CHECK (0x0100) #define ONENAND_PAGEBUF_ALLOC (0x1000) #define ONENAND_OOBBUF_ALLOC (0x2000) +#define ONENAND_SKIP_INITIAL_UNLOCKING (0x4000) #define ONENAND_IS_4KB_PAGE(this) \ (this->options & ONENAND_HAS_4KB_PAGE) -- cgit v1.2.3 From c93ff6bf16523d33e991a1fadde1b8d63eb7cd2c Mon Sep 17 00:00:00 2001 From: Roman Tereshonkov <roman.tereshonkov@nokia.com> Date: Thu, 17 Feb 2011 13:44:42 +0200 Subject: mtd: omap: add new variable to platform data to control onenand unlocking New variable skip_initial_unlocking is added to the omap_onenand_platform_data. This is used to inform the onenand driver to skip onenand unlocking when it is initialized. Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- arch/arm/plat-omap/include/plat/onenand.h | 1 + drivers/mtd/onenand/omap2.c | 7 +++++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/arm/plat-omap/include/plat/onenand.h b/arch/arm/plat-omap/include/plat/onenand.h index affe87e9ece7..1b430d5fdd54 100644 --- a/arch/arm/plat-omap/include/plat/onenand.h +++ b/arch/arm/plat-omap/include/plat/onenand.h @@ -24,6 +24,7 @@ struct omap_onenand_platform_data { int dma_channel; u8 flags; u8 regulator_can_sleep; + u8 skip_initial_unlocking; }; #define ONENAND_MAX_PARTITIONS 8 diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index c849cacf4b2f..ea32c2fc4622 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -631,6 +631,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) { struct omap_onenand_platform_data *pdata; struct omap2_onenand *c; + struct onenand_chip *this; int r; pdata = pdev->dev.platform_data; @@ -728,9 +729,8 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) c->mtd.dev.parent = &pdev->dev; + this = &c->onenand; if (c->dma_channel >= 0) { - struct onenand_chip *this = &c->onenand; - this->wait = omap2_onenand_wait; if (cpu_is_omap34xx()) { this->read_bufferram = omap3_onenand_read_bufferram; @@ -751,6 +751,9 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) c->onenand.disable = omap2_onenand_disable; } + if (pdata->skip_initial_unlocking) + this->options |= ONENAND_SKIP_INITIAL_UNLOCKING; + if ((r = onenand_scan(&c->mtd, 1)) < 0) goto err_release_regulator; -- cgit v1.2.3 From 775adc3d44c8076d3e475fabebb61c08421c4421 Mon Sep 17 00:00:00 2001 From: Jason Liu <r64343@freescale.com> Date: Fri, 25 Feb 2011 13:06:18 +0800 Subject: mtd: nand: fix a typo in a commentary Signed-off-by: Jason Liu <r64343@freescale.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/nand_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index a9c6ce745767..da7604050347 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2377,7 +2377,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, return -EINVAL; } - /* Do not allow reads past end of device */ + /* Do not allow write past end of device */ if (unlikely(to >= mtd->size || ops->ooboffs + ops->ooblen > ((mtd->size >> chip->page_shift) - -- cgit v1.2.3 From bea9312839c51853a2837336405c829b0bf18f88 Mon Sep 17 00:00:00 2001 From: Tracey Dent <tdent48227@gmail.com> Date: Sat, 26 Feb 2011 11:15:13 -0500 Subject: jffs2: remove a trailing white space in commentaries Signed-off-by: Tracey Dent <tdent48227@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- fs/jffs2/xattr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c index 4f9cc0482949..3e93cdd19005 100644 --- a/fs/jffs2/xattr.c +++ b/fs/jffs2/xattr.c @@ -31,7 +31,7 @@ * is used to release xattr name/value pair and detach from c->xattrindex. * reclaim_xattr_datum(c) * is used to reclaim xattr name/value pairs on the xattr name/value pair cache when - * memory usage by cache is over c->xdatum_mem_threshold. Currently, this threshold + * memory usage by cache is over c->xdatum_mem_threshold. Currently, this threshold * is hard coded as 32KiB. * do_verify_xattr_datum(c, xd) * is used to load the xdatum informations without name/value pair from the medium. -- cgit v1.2.3 From 74f1b7244e502c5a98906a5dcc5ec389aacd25e6 Mon Sep 17 00:00:00 2001 From: John Ogness <john.ogness@linutronix.de> Date: Mon, 28 Feb 2011 13:12:46 +0100 Subject: mtd: omap3: nand: report corrected ecc errors The number of corrected ECC errors should be reported since other MTD systems make use of this information (such as UBI data scrubbing). Signed-off-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/omap2.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 28af71c61834..d7a4e2550b13 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -517,6 +517,8 @@ static void gen_true_ecc(u8 *ecc_buf) * * This function compares two ECC's and indicates if there is an error. * If the error can be corrected it will be corrected to the buffer. + * If there is no error, %0 is returned. If there is an error but it + * was corrected, %1 is returned. Otherwise, %-1 is returned. */ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ u8 *ecc_data2, /* read from register */ @@ -622,7 +624,7 @@ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ page_data[find_byte] ^= (1 << find_bit); - return 0; + return 1; default: if (isEccFF) { if (ecc_data2[0] == 0 && @@ -643,8 +645,11 @@ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ * @calc_ecc: ecc read from HW ECC registers * * Compares the ecc read from nand spare area with ECC registers values - * and if ECC's mismached, it will call 'omap_compare_ecc' for error detection - * and correction. + * and if ECC's mismatched, it will call 'omap_compare_ecc' for error + * detection and correction. If there are no errors, %0 is returned. If + * there were errors and all of the errors were corrected, the number of + * corrected errors is returned. If uncorrectable errors exist, %-1 is + * returned. */ static int omap_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) @@ -652,6 +657,7 @@ static int omap_correct_data(struct mtd_info *mtd, u_char *dat, struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, mtd); int blockCnt = 0, i = 0, ret = 0; + int stat = 0; /* Ex NAND_ECC_HW12_2048 */ if ((info->nand.ecc.mode == NAND_ECC_HW) && @@ -665,12 +671,14 @@ static int omap_correct_data(struct mtd_info *mtd, u_char *dat, ret = omap_compare_ecc(read_ecc, calc_ecc, dat); if (ret < 0) return ret; + /* keep track of the number of corrected errors */ + stat += ret; } read_ecc += 3; calc_ecc += 3; dat += 512; } - return 0; + return stat; } /** -- cgit v1.2.3 From 5d9d9936209e589569a97985285b3282310cf2db Mon Sep 17 00:00:00 2001 From: Baruch Siach <baruch@tkos.co.il> Date: Wed, 2 Mar 2011 16:47:55 +0200 Subject: mtd: mxc_nand: fix read past buffer end Signed-off-by: Baruch Siach <baruch@tkos.co.il> Acked-by: Sascha hauer <s.hauer@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/mxc_nand.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index ef932ba55a0b..6cd78ed439a7 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -641,9 +641,9 @@ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) n = min(n, len); - memcpy(buf, host->data_buf + col, len); + memcpy(buf, host->data_buf + col, n); - host->buf_start += len; + host->buf_start += n; } /* Used by the upper layer to verify the data in NAND Flash -- cgit v1.2.3 From e70727e442eb61581f836a9a0ca0c3b70d8a3ff2 Mon Sep 17 00:00:00 2001 From: David Lambert <dave@lambsys.com> Date: Mon, 7 Mar 2011 12:00:46 +0200 Subject: mtd: speedtest: fix integer overflow 32-bit integers used in 'calc_speed()' may overflow and lead to incorrect results. Use 64-bit integers instead. Signed-off-by: David Lambert <dave@lambsys.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/tests/mtd_speedtest.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c index 3ce6fce75e07..627d4e2466a3 100644 --- a/drivers/mtd/tests/mtd_speedtest.c +++ b/drivers/mtd/tests/mtd_speedtest.c @@ -314,16 +314,16 @@ static inline void stop_timing(void) static long calc_speed(void) { - long ms, k, speed; + uint64_t k; + long ms; ms = (finish.tv_sec - start.tv_sec) * 1000 + (finish.tv_usec - start.tv_usec) / 1000; - k = goodebcnt * mtd->erasesize / 1024; - if (ms) - speed = (k * 1000) / ms; - else - speed = 0; - return speed; + if (ms == 0) + return 0; + k = goodebcnt * (mtd->erasesize / 1024) * 1000; + do_div(k, ms); + return k; } static int scan_for_bad_eraseblocks(void) -- cgit v1.2.3 From e353a20afaee1e3e67fc4fa663a76c68a4c1fb74 Mon Sep 17 00:00:00 2001 From: Lei Wen <leiwen@marvell.com> Date: Thu, 3 Mar 2011 11:08:30 +0800 Subject: mtd: pxa3xx_nand: make scan procedure more clear The previous probe function is some kind of big part. This patch seperate the resource allocation to keep the probe process more clear than before. Signed-off-by: Lei Wen <leiwen@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/pxa3xx_nand.c | 99 +++++++++++++++++++++++------------------- 1 file changed, 55 insertions(+), 44 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index ea2c288df3f6..f44044381360 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -126,6 +126,7 @@ struct pxa3xx_nand_info { unsigned int buf_start; unsigned int buf_count; + struct mtd_info *mtd; /* DMA information */ int drcmr_dat; int drcmr_cmd; @@ -1044,34 +1045,27 @@ static void pxa3xx_nand_init_mtd(struct mtd_info *mtd, this->chip_delay = 25; } -static int pxa3xx_nand_probe(struct platform_device *pdev) +static +struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev) { - struct pxa3xx_nand_platform_data *pdata; + struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; struct pxa3xx_nand_info *info; - struct nand_chip *this; struct mtd_info *mtd; struct resource *r; - int ret = 0, irq; - - pdata = pdev->dev.platform_data; - - if (!pdata) { - dev_err(&pdev->dev, "no platform data defined\n"); - return -ENODEV; - } + int ret, irq; mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct pxa3xx_nand_info), GFP_KERNEL); if (!mtd) { dev_err(&pdev->dev, "failed to allocate memory\n"); - return -ENOMEM; + return NULL; } info = (struct pxa3xx_nand_info *)(&mtd[1]); info->pdev = pdev; - this = &info->nand_chip; mtd->priv = info; + info->mtd = mtd; mtd->owner = THIS_MODULE; info->clk = clk_get(&pdev->dev, NULL); @@ -1149,31 +1143,9 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) } pxa3xx_nand_init_mtd(mtd, info); + platform_set_drvdata(pdev, info); - platform_set_drvdata(pdev, mtd); - - if (nand_scan(mtd, 1)) { - dev_err(&pdev->dev, "failed to scan nand\n"); - ret = -ENXIO; - goto fail_free_irq; - } - -#ifdef CONFIG_MTD_PARTITIONS - if (mtd_has_cmdlinepart()) { - static const char *probes[] = { "cmdlinepart", NULL }; - struct mtd_partition *parts; - int nr_parts; - - nr_parts = parse_mtd_partitions(mtd, probes, &parts, 0); - - if (nr_parts) - return add_mtd_partitions(mtd, parts, nr_parts); - } - - return add_mtd_partitions(mtd, pdata->parts, pdata->nr_parts); -#else - return 0; -#endif + return info; fail_free_irq: free_irq(irq, info); @@ -1193,13 +1165,13 @@ fail_put_clk: clk_put(info->clk); fail_free_mtd: kfree(mtd); - return ret; + return NULL; } static int pxa3xx_nand_remove(struct platform_device *pdev) { - struct mtd_info *mtd = platform_get_drvdata(pdev); - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); + struct mtd_info *mtd = info->mtd; struct resource *r; int irq; @@ -1230,11 +1202,50 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) return 0; } +static int pxa3xx_nand_probe(struct platform_device *pdev) +{ + struct pxa3xx_nand_platform_data *pdata; + struct pxa3xx_nand_info *info; + + pdata = pdev->dev.platform_data; + if (!pdata) { + dev_err(&pdev->dev, "no platform data defined\n"); + return -ENODEV; + } + + info = alloc_nand_resource(pdev); + if (info == NULL) + return -ENOMEM; + + if (nand_scan(info->mtd, 1)) { + dev_err(&pdev->dev, "failed to scan nand\n"); + pxa3xx_nand_remove(pdev); + return -ENODEV; + } + +#ifdef CONFIG_MTD_PARTITIONS + if (mtd_has_cmdlinepart()) { + const char *probes[] = { "cmdlinepart", NULL }; + struct mtd_partition *parts; + int nr_parts; + + nr_parts = parse_mtd_partitions(info->mtd, probes, &parts, 0); + + if (nr_parts) + return add_mtd_partitions(mtd, parts, nr_parts); + } + + return add_mtd_partitions(mtd, pdata->parts, pdata->nr_parts); +#else + return 0; +#endif +} + #ifdef CONFIG_PM static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state) { - struct mtd_info *mtd = (struct mtd_info *)platform_get_drvdata(pdev); - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); + struct mtd_info *mtd = info->mtd; if (info->state != STATE_READY) { dev_err(&pdev->dev, "driver busy, state = %d\n", info->state); @@ -1246,8 +1257,8 @@ static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state) static int pxa3xx_nand_resume(struct platform_device *pdev) { - struct mtd_info *mtd = (struct mtd_info *)platform_get_drvdata(pdev); - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); + struct mtd_info *mtd = info->mtd; nand_writel(info, NDTR0CS0, info->ndtr0cs0); nand_writel(info, NDTR1CS0, info->ndtr1cs0); -- cgit v1.2.3 From f8155a404db95656f1519b28fdb96cb68f8b2364 Mon Sep 17 00:00:00 2001 From: Lei Wen <leiwen@marvell.com> Date: Mon, 28 Feb 2011 10:32:11 +0800 Subject: mtd: pxa3xx_nand: rework irq logic Enable all irq when we start the nand controller, and put all the transaction logic in the pxa3xx_nand_irq. By doing this way, we could dramatically increase the performance by avoid unnecessary delay. Signed-off-by: Lei Wen <leiwen@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/pxa3xx_nand.c | 399 +++++++++++++++++++---------------------- 1 file changed, 187 insertions(+), 212 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index f44044381360..3264b1d5a638 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -27,6 +27,7 @@ #include <plat/pxa3xx_nand.h> #define CHIP_DELAY_TIMEOUT (2 * HZ/10) +#define NAND_STOP_DELAY (2 * HZ/50) /* registers and bit definitions */ #define NDCR (0x00) /* Control register */ @@ -52,16 +53,18 @@ #define NDCR_ND_MODE (0x3 << 21) #define NDCR_NAND_MODE (0x0) #define NDCR_CLR_PG_CNT (0x1 << 20) -#define NDCR_CLR_ECC (0x1 << 19) +#define NDCR_STOP_ON_UNCOR (0x1 << 19) #define NDCR_RD_ID_CNT_MASK (0x7 << 16) #define NDCR_RD_ID_CNT(x) (((x) << 16) & NDCR_RD_ID_CNT_MASK) #define NDCR_RA_START (0x1 << 15) #define NDCR_PG_PER_BLK (0x1 << 14) #define NDCR_ND_ARB_EN (0x1 << 12) +#define NDCR_INT_MASK (0xFFF) #define NDSR_MASK (0xfff) -#define NDSR_RDY (0x1 << 11) +#define NDSR_RDY (0x1 << 12) +#define NDSR_FLASH_RDY (0x1 << 11) #define NDSR_CS0_PAGED (0x1 << 10) #define NDSR_CS1_PAGED (0x1 << 9) #define NDSR_CS0_CMDD (0x1 << 8) @@ -104,13 +107,15 @@ enum { }; enum { - STATE_READY = 0, + STATE_IDLE = 0, STATE_CMD_HANDLE, STATE_DMA_READING, STATE_DMA_WRITING, STATE_DMA_DONE, STATE_PIO_READING, STATE_PIO_WRITING, + STATE_CMD_DONE, + STATE_READY, }; struct pxa3xx_nand_info { @@ -292,7 +297,48 @@ static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info) } } -static int prepare_read_prog_cmd(struct pxa3xx_nand_info *info, +/** + * NOTE: it is a must to set ND_RUN firstly, then write + * command buffer, otherwise, it does not work. + * We enable all the interrupt at the same time, and + * let pxa3xx_nand_irq to handle all logic. + */ +static void pxa3xx_nand_start(struct pxa3xx_nand_info *info) +{ + uint32_t ndcr; + + ndcr = info->reg_ndcr; + ndcr |= info->use_ecc ? NDCR_ECC_EN : 0; + ndcr |= info->use_dma ? NDCR_DMA_EN : 0; + ndcr |= NDCR_ND_RUN; + + /* clear status bits and run */ + nand_writel(info, NDCR, 0); + nand_writel(info, NDSR, NDSR_MASK); + nand_writel(info, NDCR, ndcr); +} + +static void pxa3xx_nand_stop(struct pxa3xx_nand_info *info) +{ + uint32_t ndcr; + int timeout = NAND_STOP_DELAY; + + /* wait RUN bit in NDCR become 0 */ + ndcr = nand_readl(info, NDCR); + while ((ndcr & NDCR_ND_RUN) && (timeout-- > 0)) { + ndcr = nand_readl(info, NDCR); + udelay(1); + } + + if (timeout <= 0) { + ndcr &= ~NDCR_ND_RUN; + nand_writel(info, NDCR, ndcr); + } + /* clear status bits */ + nand_writel(info, NDSR, NDSR_MASK); +} + +static void prepare_read_prog_cmd(struct pxa3xx_nand_info *info, uint16_t cmd, int column, int page_addr) { const struct pxa3xx_nand_cmdset *cmdset = info->cmdset; @@ -319,21 +365,18 @@ static int prepare_read_prog_cmd(struct pxa3xx_nand_info *info, if (cmd == cmdset->program) info->ndcb0 |= NDCB0_CMD_TYPE(1) | NDCB0_AUTO_RS; - - return 0; } -static int prepare_erase_cmd(struct pxa3xx_nand_info *info, +static void prepare_erase_cmd(struct pxa3xx_nand_info *info, uint16_t cmd, int page_addr) { info->ndcb0 = cmd | ((cmd & 0xff00) ? NDCB0_DBC : 0); info->ndcb0 |= NDCB0_CMD_TYPE(2) | NDCB0_AUTO_RS | NDCB0_ADDR_CYC(3); info->ndcb1 = page_addr; info->ndcb2 = 0; - return 0; } -static int prepare_other_cmd(struct pxa3xx_nand_info *info, uint16_t cmd) +static void prepare_other_cmd(struct pxa3xx_nand_info *info, uint16_t cmd) { const struct pxa3xx_nand_cmdset *cmdset = info->cmdset; @@ -343,7 +386,7 @@ static int prepare_other_cmd(struct pxa3xx_nand_info *info, uint16_t cmd) info->oob_size = 0; if (cmd == cmdset->read_id) { - info->ndcb0 |= NDCB0_CMD_TYPE(3); + info->ndcb0 |= NDCB0_CMD_TYPE(3) | NDCB0_ADDR_CYC(1); info->data_size = 8; } else if (cmd == cmdset->read_status) { info->ndcb0 |= NDCB0_CMD_TYPE(4); @@ -352,9 +395,7 @@ static int prepare_other_cmd(struct pxa3xx_nand_info *info, uint16_t cmd) cmd == cmdset->unlock) { info->ndcb0 |= NDCB0_CMD_TYPE(5); } else - return -EINVAL; - - return 0; + BUG(); } static void enable_int(struct pxa3xx_nand_info *info, uint32_t int_mask) @@ -402,10 +443,8 @@ static int write_cmd(struct pxa3xx_nand_info *info) return 0; } -static int handle_data_pio(struct pxa3xx_nand_info *info) +static void handle_data_pio(struct pxa3xx_nand_info *info) { - int ret, timeout = CHIP_DELAY_TIMEOUT; - switch (info->state) { case STATE_PIO_WRITING: __raw_writesl(info->mmio_base + NDDB, info->data_buff, @@ -413,14 +452,6 @@ static int handle_data_pio(struct pxa3xx_nand_info *info) if (info->oob_size > 0) __raw_writesl(info->mmio_base + NDDB, info->oob_buff, DIV_ROUND_UP(info->oob_size, 4)); - - enable_int(info, NDSR_CS0_BBD | NDSR_CS0_CMDD); - - ret = wait_for_completion_timeout(&info->cmd_complete, timeout); - if (!ret) { - printk(KERN_ERR "program command time out\n"); - return -1; - } break; case STATE_PIO_READING: __raw_readsl(info->mmio_base + NDDB, info->data_buff, @@ -432,14 +463,11 @@ static int handle_data_pio(struct pxa3xx_nand_info *info) default: printk(KERN_ERR "%s: invalid state %d\n", __func__, info->state); - return -EINVAL; + BUG(); } - - info->state = STATE_READY; - return 0; } -static void start_data_dma(struct pxa3xx_nand_info *info, int dir_out) +static void start_data_dma(struct pxa3xx_nand_info *info) { struct pxa_dma_desc *desc = info->data_desc; int dma_len = ALIGN(info->data_size + info->oob_size, 32); @@ -447,14 +475,21 @@ static void start_data_dma(struct pxa3xx_nand_info *info, int dir_out) desc->ddadr = DDADR_STOP; desc->dcmd = DCMD_ENDIRQEN | DCMD_WIDTH4 | DCMD_BURST32 | dma_len; - if (dir_out) { + switch (info->state) { + case STATE_DMA_WRITING: desc->dsadr = info->data_buff_phys; desc->dtadr = info->mmio_phys + NDDB; desc->dcmd |= DCMD_INCSRCADDR | DCMD_FLOWTRG; - } else { + break; + case STATE_DMA_READING: desc->dtadr = info->data_buff_phys; desc->dsadr = info->mmio_phys + NDDB; desc->dcmd |= DCMD_INCTRGADDR | DCMD_FLOWSRC; + break; + default: + printk(KERN_ERR "%s: invalid state %d\n", __func__, + info->state); + BUG(); } DRCMR(info->drcmr_dat) = DRCMR_MAPVLD | info->data_dma_ch; @@ -472,93 +507,60 @@ static void pxa3xx_nand_data_dma_irq(int channel, void *data) if (dcsr & DCSR_BUSERR) { info->retcode = ERR_DMABUSERR; - complete(&info->cmd_complete); } - if (info->state == STATE_DMA_WRITING) { - info->state = STATE_DMA_DONE; - enable_int(info, NDSR_CS0_BBD | NDSR_CS0_CMDD); - } else { - info->state = STATE_READY; - complete(&info->cmd_complete); - } + info->state = STATE_DMA_DONE; + enable_int(info, NDCR_INT_MASK); + nand_writel(info, NDSR, NDSR_WRDREQ | NDSR_RDDREQ); } static irqreturn_t pxa3xx_nand_irq(int irq, void *devid) { struct pxa3xx_nand_info *info = devid; - unsigned int status; + unsigned int status, is_completed = 0; status = nand_readl(info, NDSR); - if (status & (NDSR_RDDREQ | NDSR_DBERR | NDSR_SBERR)) { - if (status & NDSR_DBERR) - info->retcode = ERR_DBERR; - else if (status & NDSR_SBERR) - info->retcode = ERR_SBERR; - - disable_int(info, NDSR_RDDREQ | NDSR_DBERR | NDSR_SBERR); - - if (info->use_dma) { - info->state = STATE_DMA_READING; - start_data_dma(info, 0); - } else { - info->state = STATE_PIO_READING; - complete(&info->cmd_complete); - } - } else if (status & NDSR_WRDREQ) { - disable_int(info, NDSR_WRDREQ); + if (status & NDSR_DBERR) + info->retcode = ERR_DBERR; + if (status & NDSR_SBERR) + info->retcode = ERR_SBERR; + if (status & (NDSR_RDDREQ | NDSR_WRDREQ)) { + /* whether use dma to transfer data */ if (info->use_dma) { - info->state = STATE_DMA_WRITING; - start_data_dma(info, 1); + disable_int(info, NDCR_INT_MASK); + info->state = (status & NDSR_RDDREQ) ? + STATE_DMA_READING : STATE_DMA_WRITING; + start_data_dma(info); + goto NORMAL_IRQ_EXIT; } else { - info->state = STATE_PIO_WRITING; - complete(&info->cmd_complete); + info->state = (status & NDSR_RDDREQ) ? + STATE_PIO_READING : STATE_PIO_WRITING; + handle_data_pio(info); } - } else if (status & (NDSR_CS0_BBD | NDSR_CS0_CMDD)) { - if (status & NDSR_CS0_BBD) - info->retcode = ERR_BBERR; - - disable_int(info, NDSR_CS0_BBD | NDSR_CS0_CMDD); - info->state = STATE_READY; - complete(&info->cmd_complete); } - nand_writel(info, NDSR, status); - return IRQ_HANDLED; -} - -static int pxa3xx_nand_do_cmd(struct pxa3xx_nand_info *info, uint32_t event) -{ - uint32_t ndcr; - int ret, timeout = CHIP_DELAY_TIMEOUT; - - if (write_cmd(info)) { - info->retcode = ERR_SENDCMD; - goto fail_stop; + if (status & NDSR_CS0_CMDD) { + info->state = STATE_CMD_DONE; + is_completed = 1; } + if (status & NDSR_FLASH_RDY) + info->state = STATE_READY; - info->state = STATE_CMD_HANDLE; - - enable_int(info, event); - - ret = wait_for_completion_timeout(&info->cmd_complete, timeout); - if (!ret) { - printk(KERN_ERR "command execution timed out\n"); - info->retcode = ERR_SENDCMD; - goto fail_stop; + if (status & NDSR_WRCMDREQ) { + nand_writel(info, NDSR, NDSR_WRCMDREQ); + status &= ~NDSR_WRCMDREQ; + info->state = STATE_CMD_HANDLE; + nand_writel(info, NDCB0, info->ndcb0); + nand_writel(info, NDCB0, info->ndcb1); + nand_writel(info, NDCB0, info->ndcb2); } - if (info->use_dma == 0 && info->data_size > 0) - if (handle_data_pio(info)) - goto fail_stop; - - return 0; - -fail_stop: - ndcr = nand_readl(info, NDCR); - nand_writel(info, NDCR, ndcr & ~NDCR_ND_RUN); - udelay(10); - return -ETIMEDOUT; + /* clear NDSR to let the controller exit the IRQ */ + nand_writel(info, NDSR, status); + if (is_completed) + complete(&info->cmd_complete); +NORMAL_IRQ_EXIT: + return IRQ_HANDLED; } static int pxa3xx_nand_dev_ready(struct mtd_info *mtd) @@ -580,14 +582,13 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, { struct pxa3xx_nand_info *info = mtd->priv; const struct pxa3xx_nand_cmdset *cmdset = info->cmdset; - int ret; + int ret, exec_cmd = 0; info->use_dma = (use_dma) ? 1 : 0; info->use_ecc = 0; info->data_size = 0; - info->state = STATE_READY; - - init_completion(&info->cmd_complete); + info->state = 0; + info->retcode = ERR_NONE; switch (command) { case NAND_CMD_READOOB: @@ -596,36 +597,18 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, info->buf_start = mtd->writesize + column; memset(info->data_buff, 0xFF, info->buf_count); - if (prepare_read_prog_cmd(info, cmdset->read1, column, page_addr)) - break; - - pxa3xx_nand_do_cmd(info, NDSR_RDDREQ | NDSR_DBERR | NDSR_SBERR); - - /* We only are OOB, so if the data has error, does not matter */ - if (info->retcode == ERR_DBERR) - info->retcode = ERR_NONE; + prepare_read_prog_cmd(info, cmdset->read1, column, page_addr); + exec_cmd = 1; break; case NAND_CMD_READ0: info->use_ecc = 1; - info->retcode = ERR_NONE; info->buf_start = column; info->buf_count = mtd->writesize + mtd->oobsize; memset(info->data_buff, 0xFF, info->buf_count); - if (prepare_read_prog_cmd(info, cmdset->read1, column, page_addr)) - break; - - pxa3xx_nand_do_cmd(info, NDSR_RDDREQ | NDSR_DBERR | NDSR_SBERR); - - if (info->retcode == ERR_DBERR) { - /* for blank page (all 0xff), HW will calculate its ECC as - * 0, which is different from the ECC information within - * OOB, ignore such double bit errors - */ - if (is_buf_blank(info->data_buff, mtd->writesize)) - info->retcode = ERR_NONE; - } + prepare_read_prog_cmd(info, cmdset->read1, column, page_addr); + exec_cmd = 1; break; case NAND_CMD_SEQIN: info->buf_start = column; @@ -639,17 +622,13 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, case NAND_CMD_PAGEPROG: info->use_ecc = (info->seqin_column >= mtd->writesize) ? 0 : 1; - if (prepare_read_prog_cmd(info, cmdset->program, - info->seqin_column, info->seqin_page_addr)) - break; - - pxa3xx_nand_do_cmd(info, NDSR_WRDREQ); + prepare_read_prog_cmd(info, cmdset->program, + info->seqin_column, info->seqin_page_addr); + exec_cmd = 1; break; case NAND_CMD_ERASE1: - if (prepare_erase_cmd(info, cmdset->erase, page_addr)) - break; - - pxa3xx_nand_do_cmd(info, NDSR_CS0_BBD | NDSR_CS0_CMDD); + prepare_erase_cmd(info, cmdset->erase, page_addr); + exec_cmd = 1; break; case NAND_CMD_ERASE2: break; @@ -660,40 +639,69 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, info->buf_count = (command == NAND_CMD_READID) ? info->read_id_bytes : 1; - if (prepare_other_cmd(info, (command == NAND_CMD_READID) ? - cmdset->read_id : cmdset->read_status)) - break; - - pxa3xx_nand_do_cmd(info, NDSR_RDDREQ); + prepare_other_cmd(info, (command == NAND_CMD_READID) ? + cmdset->read_id : cmdset->read_status); + exec_cmd = 1; break; case NAND_CMD_RESET: - if (prepare_other_cmd(info, cmdset->reset)) - break; - - ret = pxa3xx_nand_do_cmd(info, NDSR_CS0_CMDD); - if (ret == 0) { - int timeout = 2; - uint32_t ndcr; - - while (timeout--) { - if (nand_readl(info, NDSR) & NDSR_RDY) - break; - msleep(10); - } - - ndcr = nand_readl(info, NDCR); - nand_writel(info, NDCR, ndcr & ~NDCR_ND_RUN); - } + prepare_other_cmd(info, cmdset->reset); + exec_cmd = 1; break; default: printk(KERN_ERR "non-supported command.\n"); break; } - if (info->retcode == ERR_DBERR) { - printk(KERN_ERR "double bit error @ page %08x\n", page_addr); - info->retcode = ERR_NONE; + if (exec_cmd) { + init_completion(&info->cmd_complete); + pxa3xx_nand_start(info); + + ret = wait_for_completion_timeout(&info->cmd_complete, + CHIP_DELAY_TIMEOUT); + if (!ret) { + printk(KERN_ERR "Wait time out!!!\n"); + /* Stop State Machine for next command cycle */ + pxa3xx_nand_stop(info); + } + info->state = STATE_IDLE; + } +} + +static void pxa3xx_nand_write_page_hwecc(struct mtd_info *mtd, + struct nand_chip *chip, const uint8_t *buf) +{ + chip->write_buf(mtd, buf, mtd->writesize); + chip->write_buf(mtd, chip->oob_poi, mtd->oobsize); +} + +static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, + struct nand_chip *chip, uint8_t *buf, int page) +{ + struct pxa3xx_nand_info *info = mtd->priv; + + chip->read_buf(mtd, buf, mtd->writesize); + chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); + + if (info->retcode == ERR_SBERR) { + switch (info->use_ecc) { + case 1: + mtd->ecc_stats.corrected++; + break; + case 0: + default: + break; + } + } else if (info->retcode == ERR_DBERR) { + /* + * for blank page (all 0xff), HW will calculate its ECC as + * 0, which is different from the ECC information within + * OOB, ignore such double bit errors + */ + if (is_buf_blank(buf, mtd->writesize)) + mtd->ecc_stats.failed++; } + + return 0; } static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd) @@ -770,47 +778,13 @@ static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) return 0; } -static void pxa3xx_nand_ecc_hwctl(struct mtd_info *mtd, int mode) -{ - return; -} - -static int pxa3xx_nand_ecc_calculate(struct mtd_info *mtd, - const uint8_t *dat, uint8_t *ecc_code) -{ - return 0; -} - -static int pxa3xx_nand_ecc_correct(struct mtd_info *mtd, - uint8_t *dat, uint8_t *read_ecc, uint8_t *calc_ecc) -{ - struct pxa3xx_nand_info *info = mtd->priv; - /* - * Any error include ERR_SEND_CMD, ERR_DBERR, ERR_BUSERR, we - * consider it as a ecc error which will tell the caller the - * read fail We have distinguish all the errors, but the - * nand_read_ecc only check this function return value - * - * Corrected (single-bit) errors must also be noted. - */ - if (info->retcode == ERR_SBERR) - return 1; - else if (info->retcode != ERR_NONE) - return -1; - - return 0; -} - static int __readid(struct pxa3xx_nand_info *info, uint32_t *id) { const struct pxa3xx_nand_cmdset *cmdset = info->cmdset; uint32_t ndcr; uint8_t id_buff[8]; - if (prepare_other_cmd(info, cmdset->read_id)) { - printk(KERN_ERR "failed to prepare command\n"); - return -EINVAL; - } + prepare_other_cmd(info, cmdset->read_id); /* Send command */ if (write_cmd(info)) @@ -836,7 +810,7 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info, { struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; - uint32_t ndcr = 0x00000FFF; /* disable all interrupts */ + uint32_t ndcr = 0x0; /* enable all interrupts */ if (f->page_size != 2048 && f->page_size != 512) return -EINVAL; @@ -888,11 +862,12 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) info->reg_ndcr = ndcr; info->cmdset = &default_cmdset; - if (__readid(info, &id)) + pxa3xx_nand_cmdfunc(info->mtd, NAND_CMD_READID, 0, 0); + id = *((uint16_t *)(info->data_buff)); + if (id == 0) return -ENODEV; /* Lookup the flash id */ - id = (id >> 8) & 0xff; /* device id is byte 2 */ for (i = 0; nand_flash_ids[i].name != NULL; i++) { if (id == nand_flash_ids[i].id) { type = &nand_flash_ids[i]; @@ -935,8 +910,8 @@ static int pxa3xx_nand_detect_flash(struct pxa3xx_nand_info *info, /* we use default timing to detect id */ f = DEFAULT_FLASH_TYPE; pxa3xx_nand_config_flash(info, f); - if (__readid(info, &id)) - goto fail_detect; + pxa3xx_nand_cmdfunc(info->mtd, NAND_CMD_READID, 0, 0); + id = *((uint16_t *)(info->data_buff)); for (i=0; i<ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1; i++) { /* we first choose the flash definition from platfrom */ @@ -954,7 +929,6 @@ static int pxa3xx_nand_detect_flash(struct pxa3xx_nand_info *info, dev_warn(&info->pdev->dev, "failed to detect configured nand flash; found %04x instead of\n", id); -fail_detect: return -ENODEV; } @@ -1025,6 +999,8 @@ static void pxa3xx_nand_init_mtd(struct mtd_info *mtd, this->select_chip = pxa3xx_nand_select_chip; this->dev_ready = pxa3xx_nand_dev_ready; this->cmdfunc = pxa3xx_nand_cmdfunc; + this->ecc.read_page = pxa3xx_nand_read_page_hwecc; + this->ecc.write_page = pxa3xx_nand_write_page_hwecc; this->read_word = pxa3xx_nand_read_word; this->read_byte = pxa3xx_nand_read_byte; this->read_buf = pxa3xx_nand_read_buf; @@ -1032,9 +1008,6 @@ static void pxa3xx_nand_init_mtd(struct mtd_info *mtd, this->verify_buf = pxa3xx_nand_verify_buf; this->ecc.mode = NAND_ECC_HW; - this->ecc.hwctl = pxa3xx_nand_ecc_hwctl; - this->ecc.calculate = pxa3xx_nand_ecc_calculate; - this->ecc.correct = pxa3xx_nand_ecc_correct; this->ecc.size = info->page_size; if (info->page_size == 2048) @@ -1177,10 +1150,6 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); - del_mtd_device(mtd); -#ifdef CONFIG_MTD_PARTITIONS - del_mtd_partitions(mtd); -#endif irq = platform_get_irq(pdev, 0); if (irq >= 0) free_irq(irq, info); @@ -1198,7 +1167,13 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) clk_disable(info->clk); clk_put(info->clk); - kfree(mtd); + if (mtd) { + del_mtd_device(mtd); +#ifdef CONFIG_MTD_PARTITIONS + del_mtd_partitions(mtd); +#endif + kfree(mtd); + } return 0; } @@ -1232,10 +1207,10 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) nr_parts = parse_mtd_partitions(info->mtd, probes, &parts, 0); if (nr_parts) - return add_mtd_partitions(mtd, parts, nr_parts); + return add_mtd_partitions(info->mtd, parts, nr_parts); } - return add_mtd_partitions(mtd, pdata->parts, pdata->nr_parts); + return add_mtd_partitions(info->mtd, pdata->parts, pdata->nr_parts); #else return 0; #endif @@ -1247,7 +1222,7 @@ static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state) struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); struct mtd_info *mtd = info->mtd; - if (info->state != STATE_READY) { + if (info->state) { dev_err(&pdev->dev, "driver busy, state = %d\n", info->state); return -EAGAIN; } -- cgit v1.2.3 From 38caf7f68e6b4ad84094095887a490e3fa2ec501 Mon Sep 17 00:00:00 2001 From: Lei Wen <leiwen@marvell.com> Date: Mon, 28 Feb 2011 10:32:12 +0800 Subject: mtd: pxa3xx_nand: discard wait_for_event,write_cmd,__readid function Since we have rework the irq process, we don't need additional delay in wait_for_event. Also write_cmd and __readid is also discarded for the same reason. Signed-off-by: Lei Wen <leiwen@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/pxa3xx_nand.c | 77 +----------------------------------------- 1 file changed, 1 insertion(+), 76 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 3264b1d5a638..be0aa44ada42 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -258,25 +258,6 @@ static void pxa3xx_nand_set_timing(struct pxa3xx_nand_info *info, nand_writel(info, NDTR1CS0, ndtr1); } -#define WAIT_EVENT_TIMEOUT 10 - -static int wait_for_event(struct pxa3xx_nand_info *info, uint32_t event) -{ - int timeout = WAIT_EVENT_TIMEOUT; - uint32_t ndsr; - - while (timeout--) { - ndsr = nand_readl(info, NDSR) & NDSR_MASK; - if (ndsr & event) { - nand_writel(info, NDSR, ndsr); - return 0; - } - udelay(10); - } - - return -ETIMEDOUT; -} - static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info) { int oob_enable = info->reg_ndcr & NDCR_SPARE_EN; @@ -414,35 +395,6 @@ static void disable_int(struct pxa3xx_nand_info *info, uint32_t int_mask) nand_writel(info, NDCR, ndcr | int_mask); } -/* NOTE: it is a must to set ND_RUN firstly, then write command buffer - * otherwise, it does not work - */ -static int write_cmd(struct pxa3xx_nand_info *info) -{ - uint32_t ndcr; - - /* clear status bits and run */ - nand_writel(info, NDSR, NDSR_MASK); - - ndcr = info->reg_ndcr; - - ndcr |= info->use_ecc ? NDCR_ECC_EN : 0; - ndcr |= info->use_dma ? NDCR_DMA_EN : 0; - ndcr |= NDCR_ND_RUN; - - nand_writel(info, NDCR, ndcr); - - if (wait_for_event(info, NDSR_WRCMDREQ)) { - printk(KERN_ERR "timed out writing command\n"); - return -ETIMEDOUT; - } - - nand_writel(info, NDCB0, info->ndcb0); - nand_writel(info, NDCB0, info->ndcb1); - nand_writel(info, NDCB0, info->ndcb2); - return 0; -} - static void handle_data_pio(struct pxa3xx_nand_info *info) { switch (info->state) { @@ -778,33 +730,6 @@ static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) return 0; } -static int __readid(struct pxa3xx_nand_info *info, uint32_t *id) -{ - const struct pxa3xx_nand_cmdset *cmdset = info->cmdset; - uint32_t ndcr; - uint8_t id_buff[8]; - - prepare_other_cmd(info, cmdset->read_id); - - /* Send command */ - if (write_cmd(info)) - goto fail_timeout; - - /* Wait for CMDDM(command done successfully) */ - if (wait_for_event(info, NDSR_RDDREQ)) - goto fail_timeout; - - __raw_readsl(info->mmio_base + NDDB, id_buff, 2); - *id = id_buff[0] | (id_buff[1] << 8); - return 0; - -fail_timeout: - ndcr = nand_readl(info, NDCR); - nand_writel(info, NDCR, ndcr & ~NDCR_ND_RUN); - udelay(10); - return -ETIMEDOUT; -} - static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info, const struct pxa3xx_nand_flash *f) { @@ -857,7 +782,7 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) page_per_block = ndcr & NDCR_PG_PER_BLK ? 64 : 32; info->page_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512; - /* set info fields needed to __readid */ + /* set info fields needed to read id */ info->read_id_bytes = (info->page_size == 2048) ? 4 : 2; info->reg_ndcr = ndcr; info->cmdset = &default_cmdset; -- cgit v1.2.3 From 4eb2da8994042d68e84e31138788429a102da2ea Mon Sep 17 00:00:00 2001 From: Lei Wen <leiwen@marvell.com> Date: Mon, 28 Feb 2011 10:32:13 +0800 Subject: mtd: pxa3xx_nand: unify prepare command Make the interface simpler which could make both debug and enhancement easier. Signed-off-by: Lei Wen <leiwen@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/pxa3xx_nand.c | 249 +++++++++++++++++++++++------------------ 1 file changed, 139 insertions(+), 110 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index be0aa44ada42..de0a2a25eb01 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -28,6 +28,7 @@ #define CHIP_DELAY_TIMEOUT (2 * HZ/10) #define NAND_STOP_DELAY (2 * HZ/50) +#define PAGE_CHUNK_SIZE (2048) /* registers and bit definitions */ #define NDCR (0x00) /* Control register */ @@ -77,6 +78,7 @@ #define NDSR_RDDREQ (0x1 << 1) #define NDSR_WRCMDREQ (0x1) +#define NDCB0_ST_ROW_EN (0x1 << 26) #define NDCB0_AUTO_RS (0x1 << 25) #define NDCB0_CSEL (0x1 << 24) #define NDCB0_CMD_TYPE_MASK (0x7 << 21) @@ -319,66 +321,6 @@ static void pxa3xx_nand_stop(struct pxa3xx_nand_info *info) nand_writel(info, NDSR, NDSR_MASK); } -static void prepare_read_prog_cmd(struct pxa3xx_nand_info *info, - uint16_t cmd, int column, int page_addr) -{ - const struct pxa3xx_nand_cmdset *cmdset = info->cmdset; - pxa3xx_set_datasize(info); - - /* generate values for NDCBx registers */ - info->ndcb0 = cmd | ((cmd & 0xff00) ? NDCB0_DBC : 0); - info->ndcb1 = 0; - info->ndcb2 = 0; - info->ndcb0 |= NDCB0_ADDR_CYC(info->row_addr_cycles + info->col_addr_cycles); - - if (info->col_addr_cycles == 2) { - /* large block, 2 cycles for column address - * row address starts from 3rd cycle - */ - info->ndcb1 |= page_addr << 16; - if (info->row_addr_cycles == 3) - info->ndcb2 = (page_addr >> 16) & 0xff; - } else - /* small block, 1 cycles for column address - * row address starts from 2nd cycle - */ - info->ndcb1 = page_addr << 8; - - if (cmd == cmdset->program) - info->ndcb0 |= NDCB0_CMD_TYPE(1) | NDCB0_AUTO_RS; -} - -static void prepare_erase_cmd(struct pxa3xx_nand_info *info, - uint16_t cmd, int page_addr) -{ - info->ndcb0 = cmd | ((cmd & 0xff00) ? NDCB0_DBC : 0); - info->ndcb0 |= NDCB0_CMD_TYPE(2) | NDCB0_AUTO_RS | NDCB0_ADDR_CYC(3); - info->ndcb1 = page_addr; - info->ndcb2 = 0; -} - -static void prepare_other_cmd(struct pxa3xx_nand_info *info, uint16_t cmd) -{ - const struct pxa3xx_nand_cmdset *cmdset = info->cmdset; - - info->ndcb0 = cmd | ((cmd & 0xff00) ? NDCB0_DBC : 0); - info->ndcb1 = 0; - info->ndcb2 = 0; - - info->oob_size = 0; - if (cmd == cmdset->read_id) { - info->ndcb0 |= NDCB0_CMD_TYPE(3) | NDCB0_ADDR_CYC(1); - info->data_size = 8; - } else if (cmd == cmdset->read_status) { - info->ndcb0 |= NDCB0_CMD_TYPE(4); - info->data_size = 8; - } else if (cmd == cmdset->reset || cmd == cmdset->lock || - cmd == cmdset->unlock) { - info->ndcb0 |= NDCB0_CMD_TYPE(5); - } else - BUG(); -} - static void enable_int(struct pxa3xx_nand_info *info, uint32_t int_mask) { uint32_t ndcr; @@ -529,81 +471,167 @@ static inline int is_buf_blank(uint8_t *buf, size_t len) return 1; } -static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, - int column, int page_addr) +static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, + uint16_t column, int page_addr) { - struct pxa3xx_nand_info *info = mtd->priv; - const struct pxa3xx_nand_cmdset *cmdset = info->cmdset; - int ret, exec_cmd = 0; + uint16_t cmd; + int addr_cycle, exec_cmd, ndcb0; + struct mtd_info *mtd = info->mtd; + + ndcb0 = 0; + addr_cycle = 0; + exec_cmd = 1; - info->use_dma = (use_dma) ? 1 : 0; - info->use_ecc = 0; - info->data_size = 0; - info->state = 0; - info->retcode = ERR_NONE; + /* reset data and oob column point to handle data */ + info->buf_start = 0; + info->buf_count = 0; + info->oob_size = 0; + info->use_ecc = 0; + info->retcode = ERR_NONE; switch (command) { + case NAND_CMD_READ0: + case NAND_CMD_PAGEPROG: + info->use_ecc = 1; case NAND_CMD_READOOB: - /* disable HW ECC to get all the OOB data */ - info->buf_count = mtd->writesize + mtd->oobsize; - info->buf_start = mtd->writesize + column; - memset(info->data_buff, 0xFF, info->buf_count); - - prepare_read_prog_cmd(info, cmdset->read1, column, page_addr); - exec_cmd = 1; + pxa3xx_set_datasize(info); + break; + case NAND_CMD_SEQIN: + exec_cmd = 0; + break; + default: + info->ndcb1 = 0; + info->ndcb2 = 0; break; + } + + info->ndcb0 = ndcb0; + addr_cycle = NDCB0_ADDR_CYC(info->row_addr_cycles + + info->col_addr_cycles); + switch (command) { + case NAND_CMD_READOOB: case NAND_CMD_READ0: - info->use_ecc = 1; - info->buf_start = column; - info->buf_count = mtd->writesize + mtd->oobsize; - memset(info->data_buff, 0xFF, info->buf_count); + cmd = info->cmdset->read1; + if (command == NAND_CMD_READOOB) + info->buf_start = mtd->writesize + column; + else + info->buf_start = column; + + if (unlikely(info->page_size < PAGE_CHUNK_SIZE)) + info->ndcb0 |= NDCB0_CMD_TYPE(0) + | addr_cycle + | (cmd & NDCB0_CMD1_MASK); + else + info->ndcb0 |= NDCB0_CMD_TYPE(0) + | NDCB0_DBC + | addr_cycle + | cmd; - prepare_read_prog_cmd(info, cmdset->read1, column, page_addr); - exec_cmd = 1; - break; case NAND_CMD_SEQIN: - info->buf_start = column; + /* small page addr setting */ + if (unlikely(info->page_size < PAGE_CHUNK_SIZE)) { + info->ndcb1 = ((page_addr & 0xFFFFFF) << 8) + | (column & 0xFF); + + info->ndcb2 = 0; + } else { + info->ndcb1 = ((page_addr & 0xFFFF) << 16) + | (column & 0xFFFF); + + if (page_addr & 0xFF0000) + info->ndcb2 = (page_addr & 0xFF0000) >> 16; + else + info->ndcb2 = 0; + } + info->buf_count = mtd->writesize + mtd->oobsize; - memset(info->data_buff, 0xff, info->buf_count); + memset(info->data_buff, 0xFF, info->buf_count); - /* save column/page_addr for next CMD_PAGEPROG */ - info->seqin_column = column; - info->seqin_page_addr = page_addr; break; + case NAND_CMD_PAGEPROG: - info->use_ecc = (info->seqin_column >= mtd->writesize) ? 0 : 1; + if (is_buf_blank(info->data_buff, + (mtd->writesize + mtd->oobsize))) { + exec_cmd = 0; + break; + } - prepare_read_prog_cmd(info, cmdset->program, - info->seqin_column, info->seqin_page_addr); - exec_cmd = 1; - break; - case NAND_CMD_ERASE1: - prepare_erase_cmd(info, cmdset->erase, page_addr); - exec_cmd = 1; - break; - case NAND_CMD_ERASE2: + cmd = info->cmdset->program; + info->ndcb0 |= NDCB0_CMD_TYPE(0x1) + | NDCB0_AUTO_RS + | NDCB0_ST_ROW_EN + | NDCB0_DBC + | cmd + | addr_cycle; break; + case NAND_CMD_READID: + cmd = info->cmdset->read_id; + info->buf_count = info->read_id_bytes; + info->ndcb0 |= NDCB0_CMD_TYPE(3) + | NDCB0_ADDR_CYC(1) + | cmd; + + info->data_size = 8; + break; case NAND_CMD_STATUS: - info->use_dma = 0; /* force PIO read */ - info->buf_start = 0; - info->buf_count = (command == NAND_CMD_READID) ? - info->read_id_bytes : 1; - - prepare_other_cmd(info, (command == NAND_CMD_READID) ? - cmdset->read_id : cmdset->read_status); - exec_cmd = 1; + cmd = info->cmdset->read_status; + info->buf_count = 1; + info->ndcb0 |= NDCB0_CMD_TYPE(4) + | NDCB0_ADDR_CYC(1) + | cmd; + + info->data_size = 8; + break; + + case NAND_CMD_ERASE1: + cmd = info->cmdset->erase; + info->ndcb0 |= NDCB0_CMD_TYPE(2) + | NDCB0_AUTO_RS + | NDCB0_ADDR_CYC(3) + | NDCB0_DBC + | cmd; + info->ndcb1 = page_addr; + info->ndcb2 = 0; + break; case NAND_CMD_RESET: - prepare_other_cmd(info, cmdset->reset); - exec_cmd = 1; + cmd = info->cmdset->reset; + info->ndcb0 |= NDCB0_CMD_TYPE(5) + | cmd; + + break; + + case NAND_CMD_ERASE2: + exec_cmd = 0; break; + default: - printk(KERN_ERR "non-supported command.\n"); + exec_cmd = 0; + printk(KERN_ERR "pxa3xx-nand: non-supported" + " command %x\n", command); break; } + return exec_cmd; +} + +static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, + int column, int page_addr) +{ + struct pxa3xx_nand_info *info = mtd->priv; + int ret, exec_cmd; + + /* + * if this is a x16 device ,then convert the input + * "byte" address into a "word" address appropriate + * for indexing a word-oriented device + */ + if (info->reg_ndcr & NDCR_DWIDTH_M) + column /= 2; + + exec_cmd = prepare_command_pool(info, command, column, page_addr); if (exec_cmd) { init_completion(&info->cmd_complete); pxa3xx_nand_start(info); @@ -919,6 +947,7 @@ static void pxa3xx_nand_init_mtd(struct mtd_info *mtd, struct nand_chip *this = &info->nand_chip; this->options = (info->reg_ndcr & NDCR_DWIDTH_C) ? NAND_BUSWIDTH_16: 0; + this->options |= NAND_NO_AUTOINCR; this->waitfunc = pxa3xx_nand_waitfunc; this->select_chip = pxa3xx_nand_select_chip; -- cgit v1.2.3 From 401e67e225f350757e11e39392dcc6a0fddcea63 Mon Sep 17 00:00:00 2001 From: Lei Wen <leiwen@marvell.com> Date: Mon, 28 Feb 2011 10:32:14 +0800 Subject: mtd: pxa3xx_nand: mtd scan id process could be defined by driver itself Different NAND driver may require its unique detection. For pxa3xx_nand, it use its self id database to get the necessary info. Signed-off-by: Lei Wen <leiwen@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/pxa3xx_nand.c | 216 +++++++++++++++++++++++------------------ 1 file changed, 123 insertions(+), 93 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index de0a2a25eb01..bb50cf2b11c4 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -123,6 +123,7 @@ enum { struct pxa3xx_nand_info { struct nand_chip nand_chip; + struct nand_hw_control controller; struct platform_device *pdev; struct pxa3xx_nand_cmdset *cmdset; @@ -157,6 +158,7 @@ struct pxa3xx_nand_info { int use_ecc; /* use HW ECC ? */ int use_dma; /* use DMA ? */ + int is_ready; unsigned int page_size; /* page size of attached chip */ unsigned int data_size; /* data size in FIFO */ @@ -223,6 +225,8 @@ static struct pxa3xx_nand_flash builtin_flash_types[] = { /* Define a default flash type setting serve as flash detecting only */ #define DEFAULT_FLASH_TYPE (&builtin_flash_types[0]) +const char *mtd_names[] = {"pxa3xx_nand-0", NULL}; + #define NDTR0_tCH(c) (min((c), 7) << 19) #define NDTR0_tCS(c) (min((c), 7) << 16) #define NDTR0_tWH(c) (min((c), 7) << 11) @@ -437,8 +441,10 @@ static irqreturn_t pxa3xx_nand_irq(int irq, void *devid) info->state = STATE_CMD_DONE; is_completed = 1; } - if (status & NDSR_FLASH_RDY) + if (status & NDSR_FLASH_RDY) { + info->is_ready = 1; info->state = STATE_READY; + } if (status & NDSR_WRCMDREQ) { nand_writel(info, NDSR, NDSR_WRCMDREQ); @@ -483,10 +489,11 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, exec_cmd = 1; /* reset data and oob column point to handle data */ - info->buf_start = 0; - info->buf_count = 0; + info->buf_start = 0; + info->buf_count = 0; info->oob_size = 0; info->use_ecc = 0; + info->is_ready = 0; info->retcode = ERR_NONE; switch (command) { @@ -849,42 +856,6 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) return 0; } -static int pxa3xx_nand_detect_flash(struct pxa3xx_nand_info *info, - const struct pxa3xx_nand_platform_data *pdata) -{ - const struct pxa3xx_nand_flash *f; - uint32_t id = -1; - int i; - - if (pdata->keep_config) - if (pxa3xx_nand_detect_config(info) == 0) - return 0; - - /* we use default timing to detect id */ - f = DEFAULT_FLASH_TYPE; - pxa3xx_nand_config_flash(info, f); - pxa3xx_nand_cmdfunc(info->mtd, NAND_CMD_READID, 0, 0); - id = *((uint16_t *)(info->data_buff)); - - for (i=0; i<ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1; i++) { - /* we first choose the flash definition from platfrom */ - if (i < pdata->num_flash) - f = pdata->flash + i; - else - f = &builtin_flash_types[i - pdata->num_flash + 1]; - if (f->chip_id == id) { - dev_info(&info->pdev->dev, "detect chip id: 0x%x\n", id); - pxa3xx_nand_config_flash(info, f); - return 0; - } - } - - dev_warn(&info->pdev->dev, - "failed to detect configured nand flash; found %04x instead of\n", - id); - return -ENODEV; -} - /* the maximum possible buffer size for large page with OOB data * is: 2048 + 64 = 2112 bytes, allocate a page here for both the * data buffer and the DMA descriptor @@ -926,57 +897,110 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info) return 0; } -static struct nand_ecclayout hw_smallpage_ecclayout = { - .eccbytes = 6, - .eccpos = {8, 9, 10, 11, 12, 13 }, - .oobfree = { {2, 6} } -}; +static int pxa3xx_nand_sensing(struct pxa3xx_nand_info *info) +{ + struct mtd_info *mtd = info->mtd; + struct nand_chip *chip = mtd->priv; -static struct nand_ecclayout hw_largepage_ecclayout = { - .eccbytes = 24, - .eccpos = { - 40, 41, 42, 43, 44, 45, 46, 47, - 48, 49, 50, 51, 52, 53, 54, 55, - 56, 57, 58, 59, 60, 61, 62, 63}, - .oobfree = { {2, 38} } -}; + /* use the common timing to make a try */ + pxa3xx_nand_config_flash(info, &builtin_flash_types[0]); + chip->cmdfunc(mtd, NAND_CMD_RESET, 0, 0); + if (info->is_ready) + return 1; + else + return 0; +} -static void pxa3xx_nand_init_mtd(struct mtd_info *mtd, - struct pxa3xx_nand_info *info) +static int pxa3xx_nand_scan(struct mtd_info *mtd) { - struct nand_chip *this = &info->nand_chip; - - this->options = (info->reg_ndcr & NDCR_DWIDTH_C) ? NAND_BUSWIDTH_16: 0; - this->options |= NAND_NO_AUTOINCR; - - this->waitfunc = pxa3xx_nand_waitfunc; - this->select_chip = pxa3xx_nand_select_chip; - this->dev_ready = pxa3xx_nand_dev_ready; - this->cmdfunc = pxa3xx_nand_cmdfunc; - this->ecc.read_page = pxa3xx_nand_read_page_hwecc; - this->ecc.write_page = pxa3xx_nand_write_page_hwecc; - this->read_word = pxa3xx_nand_read_word; - this->read_byte = pxa3xx_nand_read_byte; - this->read_buf = pxa3xx_nand_read_buf; - this->write_buf = pxa3xx_nand_write_buf; - this->verify_buf = pxa3xx_nand_verify_buf; - - this->ecc.mode = NAND_ECC_HW; - this->ecc.size = info->page_size; - - if (info->page_size == 2048) - this->ecc.layout = &hw_largepage_ecclayout; - else - this->ecc.layout = &hw_smallpage_ecclayout; + struct pxa3xx_nand_info *info = mtd->priv; + struct platform_device *pdev = info->pdev; + struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; + const struct pxa3xx_nand_flash *f = NULL; + struct nand_chip *chip = mtd->priv; + uint32_t id = -1; + int i, ret, num; + + if (pdata->keep_config && !pxa3xx_nand_detect_config(info)) + return 0; + + ret = pxa3xx_nand_sensing(info); + if (!ret) { + kfree(mtd); + info->mtd = NULL; + printk(KERN_INFO "There is no nand chip on cs 0!\n"); + + return -EINVAL; + } + + chip->cmdfunc(mtd, NAND_CMD_READID, 0, 0); + id = *((uint16_t *)(info->data_buff)); + if (id != 0) + printk(KERN_INFO "Detect a flash id %x\n", id); + else { + kfree(mtd); + info->mtd = NULL; + printk(KERN_WARNING "Read out ID 0, potential timing set wrong!!\n"); + + return -EINVAL; + } + + num = ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1; + for (i = 0; i < num; i++) { + if (i < pdata->num_flash) + f = pdata->flash + i; + else + f = &builtin_flash_types[i - pdata->num_flash + 1]; + + /* find the chip in default list */ + if (f->chip_id == id) { + pxa3xx_nand_config_flash(info, f); + mtd->writesize = f->page_size; + mtd->writesize_shift = ffs(mtd->writesize) - 1; + mtd->writesize_mask = (1 << mtd->writesize_shift) - 1; + mtd->oobsize = mtd->writesize / 32; + mtd->erasesize = f->page_size * f->page_per_block; + mtd->erasesize_shift = ffs(mtd->erasesize) - 1; + mtd->erasesize_mask = (1 << mtd->erasesize_shift) - 1; + + mtd->name = mtd_names[0]; + break; + } + } + + if (i >= (ARRAY_SIZE(builtin_flash_types) + pdata->num_flash)) { + kfree(mtd); + info->mtd = NULL; + printk(KERN_ERR "ERROR!! flash not defined!!!\n"); + + return -EINVAL; + } + + chip->ecc.mode = NAND_ECC_HW; + chip->ecc.size = f->page_size; + chip->chipsize = (uint64_t)f->num_blocks * f->page_per_block + * f->page_size; + mtd->size = chip->chipsize; + + /* Calculate the address shift from the page size */ + chip->page_shift = ffs(mtd->writesize) - 1; + chip->pagemask = mtd_div_by_ws(chip->chipsize, mtd) - 1; + chip->numchips = 1; + chip->phys_erase_shift = ffs(mtd->erasesize) - 1; + chip->bbt_erase_shift = chip->phys_erase_shift; + + chip->options = (f->flash_width == 16) ? NAND_BUSWIDTH_16 : 0; + chip->options |= NAND_NO_AUTOINCR; + chip->options |= NAND_NO_READRDY; - this->chip_delay = 25; + return nand_scan_tail(mtd); } static struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev) { - struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; struct pxa3xx_nand_info *info; + struct nand_chip *chip; struct mtd_info *mtd; struct resource *r; int ret, irq; @@ -989,12 +1013,27 @@ struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev) } info = (struct pxa3xx_nand_info *)(&mtd[1]); + chip = (struct nand_chip *)(&mtd[1]); info->pdev = pdev; - - mtd->priv = info; info->mtd = mtd; + mtd->priv = info; mtd->owner = THIS_MODULE; + chip->ecc.read_page = pxa3xx_nand_read_page_hwecc; + chip->ecc.write_page = pxa3xx_nand_write_page_hwecc; + chip->controller = &info->controller; + chip->waitfunc = pxa3xx_nand_waitfunc; + chip->select_chip = pxa3xx_nand_select_chip; + chip->dev_ready = pxa3xx_nand_dev_ready; + chip->cmdfunc = pxa3xx_nand_cmdfunc; + chip->read_word = pxa3xx_nand_read_word; + chip->read_byte = pxa3xx_nand_read_byte; + chip->read_buf = pxa3xx_nand_read_buf; + chip->write_buf = pxa3xx_nand_write_buf; + chip->verify_buf = pxa3xx_nand_verify_buf; + + spin_lock_init(&chip->controller->lock); + init_waitqueue_head(&chip->controller->wq); info->clk = clk_get(&pdev->dev, NULL); if (IS_ERR(info->clk)) { dev_err(&pdev->dev, "failed to get nand clock\n"); @@ -1062,21 +1101,12 @@ struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev) goto fail_free_buf; } - ret = pxa3xx_nand_detect_flash(info, pdata); - if (ret) { - dev_err(&pdev->dev, "failed to detect flash\n"); - ret = -ENODEV; - goto fail_free_irq; - } - - pxa3xx_nand_init_mtd(mtd, info); platform_set_drvdata(pdev, info); return info; -fail_free_irq: - free_irq(irq, info); fail_free_buf: + free_irq(irq, info); if (use_dma) { pxa_free_dma(info->data_dma_ch); dma_free_coherent(&pdev->dev, info->data_buff_size, @@ -1146,7 +1176,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) if (info == NULL) return -ENOMEM; - if (nand_scan(info->mtd, 1)) { + if (pxa3xx_nand_scan(info->mtd)) { dev_err(&pdev->dev, "failed to scan nand\n"); pxa3xx_nand_remove(pdev); return -ENODEV; -- cgit v1.2.3 From 4332c116869ceca58638beabd9e9a5d7db4cef83 Mon Sep 17 00:00:00 2001 From: Lei Wen <leiwen@marvell.com> Date: Thu, 3 Mar 2011 11:27:01 +0800 Subject: mtd: pxa3xx_nand: clean the keep configure code Use nand_scan_ident to unify the need of mtd member initilization for both normal detection and keep configuration method. Signed-off-by: Lei Wen <leiwen@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- arch/arm/plat-pxa/include/plat/pxa3xx_nand.h | 2 +- drivers/mtd/nand/pxa3xx_nand.c | 103 +++++++++------------------ 2 files changed, 36 insertions(+), 69 deletions(-) diff --git a/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h b/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h index 01a8448e471c..442301fe48b4 100644 --- a/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h +++ b/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h @@ -30,6 +30,7 @@ struct pxa3xx_nand_cmdset { }; struct pxa3xx_nand_flash { + char *name; uint32_t chip_id; unsigned int page_per_block; /* Pages per block (PG_PER_BLK) */ unsigned int page_size; /* Page size in bytes (PAGE_SZ) */ @@ -37,7 +38,6 @@ struct pxa3xx_nand_flash { unsigned int dfc_width; /* Width of flash controller(DWIDTH_C) */ unsigned int num_blocks; /* Number of physical blocks in Flash */ - struct pxa3xx_nand_cmdset *cmdset; /* NAND command set */ struct pxa3xx_nand_timing *timing; /* NAND Flash timing */ }; diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index bb50cf2b11c4..ab7f4c33ced6 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -211,15 +211,15 @@ static struct pxa3xx_nand_timing timing[] = { }; static struct pxa3xx_nand_flash builtin_flash_types[] = { - { 0, 0, 2048, 8, 8, 0, &default_cmdset, &timing[0] }, - { 0x46ec, 32, 512, 16, 16, 4096, &default_cmdset, &timing[1] }, - { 0xdaec, 64, 2048, 8, 8, 2048, &default_cmdset, &timing[1] }, - { 0xd7ec, 128, 4096, 8, 8, 8192, &default_cmdset, &timing[1] }, - { 0xa12c, 64, 2048, 8, 8, 1024, &default_cmdset, &timing[2] }, - { 0xb12c, 64, 2048, 16, 16, 1024, &default_cmdset, &timing[2] }, - { 0xdc2c, 64, 2048, 8, 8, 4096, &default_cmdset, &timing[2] }, - { 0xcc2c, 64, 2048, 16, 16, 4096, &default_cmdset, &timing[2] }, - { 0xba20, 64, 2048, 16, 16, 2048, &default_cmdset, &timing[3] }, +{ "DEFAULT FLASH", 0, 0, 2048, 8, 8, 0, &timing[0] }, +{ "64MiB 16-bit", 0x46ec, 32, 512, 16, 16, 4096, &timing[1] }, +{ "256MiB 8-bit", 0xdaec, 64, 2048, 8, 8, 2048, &timing[1] }, +{ "4GiB 8-bit", 0xd7ec, 128, 4096, 8, 8, 8192, &timing[1] }, +{ "128MiB 8-bit", 0xa12c, 64, 2048, 8, 8, 1024, &timing[2] }, +{ "128MiB 16-bit", 0xb12c, 64, 2048, 16, 16, 1024, &timing[2] }, +{ "512MiB 8-bit", 0xdc2c, 64, 2048, 8, 8, 4096, &timing[2] }, +{ "512MiB 16-bit", 0xcc2c, 64, 2048, 16, 16, 4096, &timing[2] }, +{ "256MiB 16-bit", 0xba20, 64, 2048, 16, 16, 2048, &timing[3] }, }; /* Define a default flash type setting serve as flash detecting only */ @@ -779,9 +779,8 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info, return -EINVAL; /* calculate flash information */ - info->cmdset = f->cmdset; + info->cmdset = &default_cmdset; info->page_size = f->page_size; - info->oob_buff = info->data_buff + f->page_size; info->read_id_bytes = (f->page_size == 2048) ? 4 : 2; /* calculate addressing information */ @@ -811,45 +810,12 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info, static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) { uint32_t ndcr = nand_readl(info, NDCR); - struct nand_flash_dev *type = NULL; - uint32_t id = -1, page_per_block, num_blocks; - int i; - - page_per_block = ndcr & NDCR_PG_PER_BLK ? 64 : 32; info->page_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512; /* set info fields needed to read id */ info->read_id_bytes = (info->page_size == 2048) ? 4 : 2; info->reg_ndcr = ndcr; info->cmdset = &default_cmdset; - pxa3xx_nand_cmdfunc(info->mtd, NAND_CMD_READID, 0, 0); - id = *((uint16_t *)(info->data_buff)); - if (id == 0) - return -ENODEV; - - /* Lookup the flash id */ - for (i = 0; nand_flash_ids[i].name != NULL; i++) { - if (id == nand_flash_ids[i].id) { - type = &nand_flash_ids[i]; - break; - } - } - - if (!type) - return -ENODEV; - - /* fill the missing flash information */ - i = __ffs(page_per_block * info->page_size); - num_blocks = type->chipsize << (20 - i); - - /* calculate addressing information */ - info->col_addr_cycles = (info->page_size == 2048) ? 2 : 1; - - if (num_blocks * page_per_block > 65536) - info->row_addr_cycles = 3; - else - info->row_addr_cycles = 2; - info->ndtr0cs0 = nand_readl(info, NDTR0CS0); info->ndtr1cs0 = nand_readl(info, NDTR1CS0); @@ -916,13 +882,15 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) struct pxa3xx_nand_info *info = mtd->priv; struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; + struct nand_flash_dev pxa3xx_flash_ids[2] = { {NULL,}, {NULL,} }; const struct pxa3xx_nand_flash *f = NULL; struct nand_chip *chip = mtd->priv; uint32_t id = -1; + uint64_t chipsize; int i, ret, num; if (pdata->keep_config && !pxa3xx_nand_detect_config(info)) - return 0; + goto KEEP_CONFIG; ret = pxa3xx_nand_sensing(info); if (!ret) { @@ -953,22 +921,11 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) f = &builtin_flash_types[i - pdata->num_flash + 1]; /* find the chip in default list */ - if (f->chip_id == id) { - pxa3xx_nand_config_flash(info, f); - mtd->writesize = f->page_size; - mtd->writesize_shift = ffs(mtd->writesize) - 1; - mtd->writesize_mask = (1 << mtd->writesize_shift) - 1; - mtd->oobsize = mtd->writesize / 32; - mtd->erasesize = f->page_size * f->page_per_block; - mtd->erasesize_shift = ffs(mtd->erasesize) - 1; - mtd->erasesize_mask = (1 << mtd->erasesize_shift) - 1; - - mtd->name = mtd_names[0]; + if (f->chip_id == id) break; - } } - if (i >= (ARRAY_SIZE(builtin_flash_types) + pdata->num_flash)) { + if (i >= (ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1)) { kfree(mtd); info->mtd = NULL; printk(KERN_ERR "ERROR!! flash not defined!!!\n"); @@ -976,18 +933,28 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) return -EINVAL; } + pxa3xx_nand_config_flash(info, f); + pxa3xx_flash_ids[0].name = f->name; + pxa3xx_flash_ids[0].id = (f->chip_id >> 8) & 0xffff; + pxa3xx_flash_ids[0].pagesize = f->page_size; + chipsize = (uint64_t)f->num_blocks * f->page_per_block * f->page_size; + pxa3xx_flash_ids[0].chipsize = chipsize >> 20; + pxa3xx_flash_ids[0].erasesize = f->page_size * f->page_per_block; + if (f->flash_width == 16) + pxa3xx_flash_ids[0].options = NAND_BUSWIDTH_16; +KEEP_CONFIG: + if (nand_scan_ident(mtd, 1, pxa3xx_flash_ids)) + return -ENODEV; + /* calculate addressing information */ + info->col_addr_cycles = (mtd->writesize >= 2048) ? 2 : 1; + info->oob_buff = info->data_buff + mtd->writesize; + if ((mtd->size >> chip->page_shift) > 65536) + info->row_addr_cycles = 3; + else + info->row_addr_cycles = 2; + mtd->name = mtd_names[0]; chip->ecc.mode = NAND_ECC_HW; chip->ecc.size = f->page_size; - chip->chipsize = (uint64_t)f->num_blocks * f->page_per_block - * f->page_size; - mtd->size = chip->chipsize; - - /* Calculate the address shift from the page size */ - chip->page_shift = ffs(mtd->writesize) - 1; - chip->pagemask = mtd_div_by_ws(chip->chipsize, mtd) - 1; - chip->numchips = 1; - chip->phys_erase_shift = ffs(mtd->erasesize) - 1; - chip->bbt_erase_shift = chip->phys_erase_shift; chip->options = (f->flash_width == 16) ? NAND_BUSWIDTH_16 : 0; chip->options |= NAND_NO_AUTOINCR; -- cgit v1.2.3 From f43272c482661bc88347bba237976eecfc1dbf5b Mon Sep 17 00:00:00 2001 From: Sandeep Paulraj <s-paulraj@ti.com> Date: Mon, 7 Mar 2011 13:50:44 -0500 Subject: mtd: DaVinci: Removed header file that is not required The DaVinci NAND driver was including the mach-types.h header file. This prevented the DaVinci NAND driver from getting used in a DSP only device. The linux port on c6x devices can make use of the same driver and does not define a corresponding header file. This header file was required in the driver because earlier there was code dependent on a machine_* check. This piece of code has now been factored out and is in arch/arm/mach-davinci/aemif.c Thus removing the header file is harmless Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/davinci_nand.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index a90fde3ede28..aff3468867ac 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -37,9 +37,6 @@ #include <mach/nand.h> #include <mach/aemif.h> -#include <asm/mach-types.h> - - /* * This is a device driver for the NAND flash controller found on the * various DaVinci family chips. It handles up to four SoC chipselects, -- cgit v1.2.3 From 2c1c5f199482356c00f70b6f2f368c3455d1230c Mon Sep 17 00:00:00 2001 From: Baruch Siach <baruch@tkos.co.il> Date: Wed, 9 Mar 2011 16:12:20 +0200 Subject: mtd: mxc_nand: fix OOB corruption when page size > 2KiB When page size is 4KiB, ecc.total is set to 8*9, and this causes nand_write_page_hwecc() to read past the initialized part of the eccpos array, which corrupts chip->oob_poi with bogus values from ecc_calc. Fix this by creating a proper nand_ecclayout for 4KiB flashes. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/mxc_nand.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 6cd78ed439a7..b7d5a5b9a543 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -211,6 +211,31 @@ static struct nand_ecclayout nandv2_hw_eccoob_largepage = { } }; +/* OOB description for 4096 byte pages with 128 byte OOB */ +static struct nand_ecclayout nandv2_hw_eccoob_4k = { + .eccbytes = 8 * 9, + .eccpos = { + 7, 8, 9, 10, 11, 12, 13, 14, 15, + 23, 24, 25, 26, 27, 28, 29, 30, 31, + 39, 40, 41, 42, 43, 44, 45, 46, 47, + 55, 56, 57, 58, 59, 60, 61, 62, 63, + 71, 72, 73, 74, 75, 76, 77, 78, 79, + 87, 88, 89, 90, 91, 92, 93, 94, 95, + 103, 104, 105, 106, 107, 108, 109, 110, 111, + 119, 120, 121, 122, 123, 124, 125, 126, 127, + }, + .oobfree = { + {.offset = 2, .length = 4}, + {.offset = 16, .length = 7}, + {.offset = 32, .length = 7}, + {.offset = 48, .length = 7}, + {.offset = 64, .length = 7}, + {.offset = 80, .length = 7}, + {.offset = 96, .length = 7}, + {.offset = 112, .length = 7}, + } +}; + #ifdef CONFIG_MTD_PARTITIONS static const char *part_probes[] = { "RedBoot", "cmdlinepart", NULL }; #endif @@ -1186,6 +1211,8 @@ static int __init mxcnd_probe(struct platform_device *pdev) if (mtd->writesize == 2048) this->ecc.layout = oob_largepage; + if (nfc_is_v21() && mtd->writesize == 4096) + this->ecc.layout = &nandv2_hw_eccoob_4k; /* second phase scan */ if (nand_scan_tail(mtd)) { -- cgit v1.2.3 From 437aa565e2656776a7104aaacd792fe789ea8b2d Mon Sep 17 00:00:00 2001 From: Ivan Djelic <ivan.djelic@parrot.com> Date: Fri, 11 Mar 2011 11:05:32 +0100 Subject: lib: add shared BCH ECC library MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is a new software BCH encoding/decoding library, similar to the shared Reed-Solomon library. Binary BCH (Bose-Chaudhuri-Hocquenghem) codes are widely used to correct errors in NAND flash devices requiring more than 1-bit ecc correction; they are generally better suited for NAND flash than RS codes because NAND bit errors do not occur in bursts. Latest SLC NAND devices typically require at least 4-bit ecc protection per 512 bytes block. This library provides software encoding/decoding, but may also be used with ASIC/SoC hardware BCH engines to perform error correction. It is being currently used for this purpose on an OMAP3630 board (4bit/8bit HW BCH). It has also been used to decode raw dumps of NAND devices with on-die BCH ecc engines (e.g. Micron 4bit ecc SLC devices). Latest NAND devices (including SLC) can exhibit high error rates (typically a dozen or more bitflips per hour during stress tests); in order to minimize the performance impact of error correction, this library implements recently developed algorithms for fast polynomial root finding (see bch.c header for details) instead of the traditional exhaustive Chien root search; a few performance figures are provided below: Platform: arm926ejs @ 468 MHz, 32 KiB icache, 16 KiB dcache BCH ecc : 4-bit per 512 bytes Encoding average throughput: 250 Mbits/s Error correction time (compared with Chien search): average worst average (Chien) worst (Chien) ---------------------------------------------------------- 1 bit 8.5 µs 11 µs 200 µs 383 µs 2 bit 9.7 µs 12.5 µs 477 µs 728 µs 3 bit 18.1 µs 20.6 µs 758 µs 1010 µs 4 bit 19.5 µs 23 µs 1028 µs 1280 µs In the above figures, "worst" is meant in terms of error pattern, not in terms of cache miss / page faults effects (not taken into account here). The library has been extensively tested on the following platforms: x86, x86_64, arm926ejs, omap3630, qemu-ppc64, qemu-mips. Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- include/linux/bch.h | 79 +++ lib/Kconfig | 39 ++ lib/Makefile | 1 + lib/bch.c | 1368 +++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 1487 insertions(+) create mode 100644 include/linux/bch.h create mode 100644 lib/bch.c diff --git a/include/linux/bch.h b/include/linux/bch.h new file mode 100644 index 000000000000..295b4ef153bb --- /dev/null +++ b/include/linux/bch.h @@ -0,0 +1,79 @@ +/* + * Generic binary BCH encoding/decoding library + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 51 + * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright © 2011 Parrot S.A. + * + * Author: Ivan Djelic <ivan.djelic@parrot.com> + * + * Description: + * + * This library provides runtime configurable encoding/decoding of binary + * Bose-Chaudhuri-Hocquenghem (BCH) codes. +*/ +#ifndef _BCH_H +#define _BCH_H + +#include <linux/types.h> + +/** + * struct bch_control - BCH control structure + * @m: Galois field order + * @n: maximum codeword size in bits (= 2^m-1) + * @t: error correction capability in bits + * @ecc_bits: ecc exact size in bits, i.e. generator polynomial degree (<=m*t) + * @ecc_bytes: ecc max size (m*t bits) in bytes + * @a_pow_tab: Galois field GF(2^m) exponentiation lookup table + * @a_log_tab: Galois field GF(2^m) log lookup table + * @mod8_tab: remainder generator polynomial lookup tables + * @ecc_buf: ecc parity words buffer + * @ecc_buf2: ecc parity words buffer + * @xi_tab: GF(2^m) base for solving degree 2 polynomial roots + * @syn: syndrome buffer + * @cache: log-based polynomial representation buffer + * @elp: error locator polynomial + * @poly_2t: temporary polynomials of degree 2t + */ +struct bch_control { + unsigned int m; + unsigned int n; + unsigned int t; + unsigned int ecc_bits; + unsigned int ecc_bytes; +/* private: */ + uint16_t *a_pow_tab; + uint16_t *a_log_tab; + uint32_t *mod8_tab; + uint32_t *ecc_buf; + uint32_t *ecc_buf2; + unsigned int *xi_tab; + unsigned int *syn; + int *cache; + struct gf_poly *elp; + struct gf_poly *poly_2t[4]; +}; + +struct bch_control *init_bch(int m, int t, unsigned int prim_poly); + +void free_bch(struct bch_control *bch); + +void encode_bch(struct bch_control *bch, const uint8_t *data, + unsigned int len, uint8_t *ecc); + +int decode_bch(struct bch_control *bch, const uint8_t *data, unsigned int len, + const uint8_t *recv_ecc, const uint8_t *calc_ecc, + const unsigned int *syn, unsigned int *errloc); + +#endif /* _BCH_H */ diff --git a/lib/Kconfig b/lib/Kconfig index 0ee67e08ad3e..b9fef78ed04f 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -154,6 +154,45 @@ config REED_SOLOMON_ENC16 config REED_SOLOMON_DEC16 boolean +# +# BCH support is selected if needed +# +config BCH + tristate + +config BCH_CONST_PARAMS + boolean + help + Drivers may select this option to force specific constant + values for parameters 'm' (Galois field order) and 't' + (error correction capability). Those specific values must + be set by declaring default values for symbols BCH_CONST_M + and BCH_CONST_T. + Doing so will enable extra compiler optimizations, + improving encoding and decoding performance up to 2x for + usual (m,t) values (typically such that m*t < 200). + When this option is selected, the BCH library supports + only a single (m,t) configuration. This is mainly useful + for NAND flash board drivers requiring known, fixed BCH + parameters. + +config BCH_CONST_M + int + range 5 15 + help + Constant value for Galois field order 'm'. If 'k' is the + number of data bits to protect, 'm' should be chosen such + that (k + m*t) <= 2**m - 1. + Drivers should declare a default value for this symbol if + they select option BCH_CONST_PARAMS. + +config BCH_CONST_T + int + help + Constant value for error correction capability in bits 't'. + Drivers should declare a default value for this symbol if + they select option BCH_CONST_PARAMS. + # # Textsearch support is select'ed if needed # diff --git a/lib/Makefile b/lib/Makefile index cbb774f7d41d..0544c814d827 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -67,6 +67,7 @@ obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/ obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/ obj-$(CONFIG_REED_SOLOMON) += reed_solomon/ +obj-$(CONFIG_BCH) += bch.o obj-$(CONFIG_LZO_COMPRESS) += lzo/ obj-$(CONFIG_LZO_DECOMPRESS) += lzo/ obj-$(CONFIG_XZ_DEC) += xz/ diff --git a/lib/bch.c b/lib/bch.c new file mode 100644 index 000000000000..bc89dfe4d1b3 --- /dev/null +++ b/lib/bch.c @@ -0,0 +1,1368 @@ +/* + * Generic binary BCH encoding/decoding library + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 51 + * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright © 2011 Parrot S.A. + * + * Author: Ivan Djelic <ivan.djelic@parrot.com> + * + * Description: + * + * This library provides runtime configurable encoding/decoding of binary + * Bose-Chaudhuri-Hocquenghem (BCH) codes. + * + * Call init_bch to get a pointer to a newly allocated bch_control structure for + * the given m (Galois field order), t (error correction capability) and + * (optional) primitive polynomial parameters. + * + * Call encode_bch to compute and store ecc parity bytes to a given buffer. + * Call decode_bch to detect and locate errors in received data. + * + * On systems supporting hw BCH features, intermediate results may be provided + * to decode_bch in order to skip certain steps. See decode_bch() documentation + * for details. + * + * Option CONFIG_BCH_CONST_PARAMS can be used to force fixed values of + * parameters m and t; thus allowing extra compiler optimizations and providing + * better (up to 2x) encoding performance. Using this option makes sense when + * (m,t) are fixed and known in advance, e.g. when using BCH error correction + * on a particular NAND flash device. + * + * Algorithmic details: + * + * Encoding is performed by processing 32 input bits in parallel, using 4 + * remainder lookup tables. + * + * The final stage of decoding involves the following internal steps: + * a. Syndrome computation + * b. Error locator polynomial computation using Berlekamp-Massey algorithm + * c. Error locator root finding (by far the most expensive step) + * + * In this implementation, step c is not performed using the usual Chien search. + * Instead, an alternative approach described in [1] is used. It consists in + * factoring the error locator polynomial using the Berlekamp Trace algorithm + * (BTA) down to a certain degree (4), after which ad hoc low-degree polynomial + * solving techniques [2] are used. The resulting algorithm, called BTZ, yields + * much better performance than Chien search for usual (m,t) values (typically + * m >= 13, t < 32, see [1]). + * + * [1] B. Biswas, V. Herbert. Efficient root finding of polynomials over fields + * of characteristic 2, in: Western European Workshop on Research in Cryptology + * - WEWoRC 2009, Graz, Austria, LNCS, Springer, July 2009, to appear. + * [2] [Zin96] V.A. Zinoviev. On the solution of equations of degree 10 over + * finite fields GF(2^q). In Rapport de recherche INRIA no 2829, 1996. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/bitops.h> +#include <asm/byteorder.h> +#include <linux/bch.h> + +#if defined(CONFIG_BCH_CONST_PARAMS) +#define GF_M(_p) (CONFIG_BCH_CONST_M) +#define GF_T(_p) (CONFIG_BCH_CONST_T) +#define GF_N(_p) ((1 << (CONFIG_BCH_CONST_M))-1) +#else +#define GF_M(_p) ((_p)->m) +#define GF_T(_p) ((_p)->t) +#define GF_N(_p) ((_p)->n) +#endif + +#define BCH_ECC_WORDS(_p) DIV_ROUND_UP(GF_M(_p)*GF_T(_p), 32) +#define BCH_ECC_BYTES(_p) DIV_ROUND_UP(GF_M(_p)*GF_T(_p), 8) + +#ifndef dbg +#define dbg(_fmt, args...) do {} while (0) +#endif + +/* + * represent a polynomial over GF(2^m) + */ +struct gf_poly { + unsigned int deg; /* polynomial degree */ + unsigned int c[0]; /* polynomial terms */ +}; + +/* given its degree, compute a polynomial size in bytes */ +#define GF_POLY_SZ(_d) (sizeof(struct gf_poly)+((_d)+1)*sizeof(unsigned int)) + +/* polynomial of degree 1 */ +struct gf_poly_deg1 { + struct gf_poly poly; + unsigned int c[2]; +}; + +/* + * same as encode_bch(), but process input data one byte at a time + */ +static void encode_bch_unaligned(struct bch_control *bch, + const unsigned char *data, unsigned int len, + uint32_t *ecc) +{ + int i; + const uint32_t *p; + const int l = BCH_ECC_WORDS(bch)-1; + + while (len--) { + p = bch->mod8_tab + (l+1)*(((ecc[0] >> 24)^(*data++)) & 0xff); + + for (i = 0; i < l; i++) + ecc[i] = ((ecc[i] << 8)|(ecc[i+1] >> 24))^(*p++); + + ecc[l] = (ecc[l] << 8)^(*p); + } +} + +/* + * convert ecc bytes to aligned, zero-padded 32-bit ecc words + */ +static void load_ecc8(struct bch_control *bch, uint32_t *dst, + const uint8_t *src) +{ + uint8_t pad[4] = {0, 0, 0, 0}; + unsigned int i, nwords = BCH_ECC_WORDS(bch)-1; + + for (i = 0; i < nwords; i++, src += 4) + dst[i] = (src[0] << 24)|(src[1] << 16)|(src[2] << 8)|src[3]; + + memcpy(pad, src, BCH_ECC_BYTES(bch)-4*nwords); + dst[nwords] = (pad[0] << 24)|(pad[1] << 16)|(pad[2] << 8)|pad[3]; +} + +/* + * convert 32-bit ecc words to ecc bytes + */ +static void store_ecc8(struct bch_control *bch, uint8_t *dst, + const uint32_t *src) +{ + uint8_t pad[4]; + unsigned int i, nwords = BCH_ECC_WORDS(bch)-1; + + for (i = 0; i < nwords; i++) { + *dst++ = (src[i] >> 24); + *dst++ = (src[i] >> 16) & 0xff; + *dst++ = (src[i] >> 8) & 0xff; + *dst++ = (src[i] >> 0) & 0xff; + } + pad[0] = (src[nwords] >> 24); + pad[1] = (src[nwords] >> 16) & 0xff; + pad[2] = (src[nwords] >> 8) & 0xff; + pad[3] = (src[nwords] >> 0) & 0xff; + memcpy(dst, pad, BCH_ECC_BYTES(bch)-4*nwords); +} + +/** + * encode_bch - calculate BCH ecc parity of data + * @bch: BCH control structure + * @data: data to encode + * @len: data length in bytes + * @ecc: ecc parity data, must be initialized by caller + * + * The @ecc parity array is used both as input and output parameter, in order to + * allow incremental computations. It should be of the size indicated by member + * @ecc_bytes of @bch, and should be initialized to 0 before the first call. + * + * The exact number of computed ecc parity bits is given by member @ecc_bits of + * @bch; it may be less than m*t for large values of t. + */ +void encode_bch(struct bch_control *bch, const uint8_t *data, + unsigned int len, uint8_t *ecc) +{ + const unsigned int l = BCH_ECC_WORDS(bch)-1; + unsigned int i, mlen; + unsigned long m; + uint32_t w, r[l+1]; + const uint32_t * const tab0 = bch->mod8_tab; + const uint32_t * const tab1 = tab0 + 256*(l+1); + const uint32_t * const tab2 = tab1 + 256*(l+1); + const uint32_t * const tab3 = tab2 + 256*(l+1); + const uint32_t *pdata, *p0, *p1, *p2, *p3; + + if (ecc) { + /* load ecc parity bytes into internal 32-bit buffer */ + load_ecc8(bch, bch->ecc_buf, ecc); + } else { + memset(bch->ecc_buf, 0, sizeof(r)); + } + + /* process first unaligned data bytes */ + m = ((unsigned long)data) & 3; + if (m) { + mlen = (len < (4-m)) ? len : 4-m; + encode_bch_unaligned(bch, data, mlen, bch->ecc_buf); + data += mlen; + len -= mlen; + } + + /* process 32-bit aligned data words */ + pdata = (uint32_t *)data; + mlen = len/4; + data += 4*mlen; + len -= 4*mlen; + memcpy(r, bch->ecc_buf, sizeof(r)); + + /* + * split each 32-bit word into 4 polynomials of weight 8 as follows: + * + * 31 ...24 23 ...16 15 ... 8 7 ... 0 + * xxxxxxxx yyyyyyyy zzzzzzzz tttttttt + * tttttttt mod g = r0 (precomputed) + * zzzzzzzz 00000000 mod g = r1 (precomputed) + * yyyyyyyy 00000000 00000000 mod g = r2 (precomputed) + * xxxxxxxx 00000000 00000000 00000000 mod g = r3 (precomputed) + * xxxxxxxx yyyyyyyy zzzzzzzz tttttttt mod g = r0^r1^r2^r3 + */ + while (mlen--) { + /* input data is read in big-endian format */ + w = r[0]^cpu_to_be32(*pdata++); + p0 = tab0 + (l+1)*((w >> 0) & 0xff); + p1 = tab1 + (l+1)*((w >> 8) & 0xff); + p2 = tab2 + (l+1)*((w >> 16) & 0xff); + p3 = tab3 + (l+1)*((w >> 24) & 0xff); + + for (i = 0; i < l; i++) + r[i] = r[i+1]^p0[i]^p1[i]^p2[i]^p3[i]; + + r[l] = p0[l]^p1[l]^p2[l]^p3[l]; + } + memcpy(bch->ecc_buf, r, sizeof(r)); + + /* process last unaligned bytes */ + if (len) + encode_bch_unaligned(bch, data, len, bch->ecc_buf); + + /* store ecc parity bytes into original parity buffer */ + if (ecc) + store_ecc8(bch, ecc, bch->ecc_buf); +} +EXPORT_SYMBOL_GPL(encode_bch); + +static inline int modulo(struct bch_control *bch, unsigned int v) +{ + const unsigned int n = GF_N(bch); + while (v >= n) { + v -= n; + v = (v & n) + (v >> GF_M(bch)); + } + return v; +} + +/* + * shorter and faster modulo function, only works when v < 2N. + */ +static inline int mod_s(struct bch_control *bch, unsigned int v) +{ + const unsigned int n = GF_N(bch); + return (v < n) ? v : v-n; +} + +static inline int deg(unsigned int poly) +{ + /* polynomial degree is the most-significant bit index */ + return fls(poly)-1; +} + +static inline int parity(unsigned int x) +{ + /* + * public domain code snippet, lifted from + * http://www-graphics.stanford.edu/~seander/bithacks.html + */ + x ^= x >> 1; + x ^= x >> 2; + x = (x & 0x11111111U) * 0x11111111U; + return (x >> 28) & 1; +} + +/* Galois field basic operations: multiply, divide, inverse, etc. */ + +static inline unsigned int gf_mul(struct bch_control *bch, unsigned int a, + unsigned int b) +{ + return (a && b) ? bch->a_pow_tab[mod_s(bch, bch->a_log_tab[a]+ + bch->a_log_tab[b])] : 0; +} + +static inline unsigned int gf_sqr(struct bch_control *bch, unsigned int a) +{ + return a ? bch->a_pow_tab[mod_s(bch, 2*bch->a_log_tab[a])] : 0; +} + +static inline unsigned int gf_div(struct bch_control *bch, unsigned int a, + unsigned int b) +{ + return a ? bch->a_pow_tab[mod_s(bch, bch->a_log_tab[a]+ + GF_N(bch)-bch->a_log_tab[b])] : 0; +} + +static inline unsigned int gf_inv(struct bch_control *bch, unsigned int a) +{ + return bch->a_pow_tab[GF_N(bch)-bch->a_log_tab[a]]; +} + +static inline unsigned int a_pow(struct bch_control *bch, int i) +{ + return bch->a_pow_tab[modulo(bch, i)]; +} + +static inline int a_log(struct bch_control *bch, unsigned int x) +{ + return bch->a_log_tab[x]; +} + +static inline int a_ilog(struct bch_control *bch, unsigned int x) +{ + return mod_s(bch, GF_N(bch)-bch->a_log_tab[x]); +} + +/* + * compute 2t syndromes of ecc polynomial, i.e. ecc(a^j) for j=1..2t + */ +static void compute_syndromes(struct bch_control *bch, uint32_t *ecc, + unsigned int *syn) +{ + int i, j, s; + unsigned int m; + uint32_t poly; + const int t = GF_T(bch); + + s = bch->ecc_bits; + + /* make sure extra bits in last ecc word are cleared */ + m = ((unsigned int)s) & 31; + if (m) + ecc[s/32] &= ~((1u << (32-m))-1); + memset(syn, 0, 2*t*sizeof(*syn)); + + /* compute v(a^j) for j=1 .. 2t-1 */ + do { + poly = *ecc++; + s -= 32; + while (poly) { + i = deg(poly); + for (j = 0; j < 2*t; j += 2) + syn[j] ^= a_pow(bch, (j+1)*(i+s)); + + poly ^= (1 << i); + } + } while (s > 0); + + /* v(a^(2j)) = v(a^j)^2 */ + for (j = 0; j < t; j++) + syn[2*j+1] = gf_sqr(bch, syn[j]); +} + +static void gf_poly_copy(struct gf_poly *dst, struct gf_poly *src) +{ + memcpy(dst, src, GF_POLY_SZ(src->deg)); +} + +static int compute_error_locator_polynomial(struct bch_control *bch, + const unsigned int *syn) +{ + const unsigned int t = GF_T(bch); + const unsigned int n = GF_N(bch); + unsigned int i, j, tmp, l, pd = 1, d = syn[0]; + struct gf_poly *elp = bch->elp; + struct gf_poly *pelp = bch->poly_2t[0]; + struct gf_poly *elp_copy = bch->poly_2t[1]; + int k, pp = -1; + + memset(pelp, 0, GF_POLY_SZ(2*t)); + memset(elp, 0, GF_POLY_SZ(2*t)); + + pelp->deg = 0; + pelp->c[0] = 1; + elp->deg = 0; + elp->c[0] = 1; + + /* use simplified binary Berlekamp-Massey algorithm */ + for (i = 0; (i < t) && (elp->deg <= t); i++) { + if (d) { + k = 2*i-pp; + gf_poly_copy(elp_copy, elp); + /* e[i+1](X) = e[i](X)+di*dp^-1*X^2(i-p)*e[p](X) */ + tmp = a_log(bch, d)+n-a_log(bch, pd); + for (j = 0; j <= pelp->deg; j++) { + if (pelp->c[j]) { + l = a_log(bch, pelp->c[j]); + elp->c[j+k] ^= a_pow(bch, tmp+l); + } + } + /* compute l[i+1] = max(l[i]->c[l[p]+2*(i-p]) */ + tmp = pelp->deg+k; + if (tmp > elp->deg) { + elp->deg = tmp; + gf_poly_copy(pelp, elp_copy); + pd = d; + pp = 2*i; + } + } + /* di+1 = S(2i+3)+elp[i+1].1*S(2i+2)+...+elp[i+1].lS(2i+3-l) */ + if (i < t-1) { + d = syn[2*i+2]; + for (j = 1; j <= elp->deg; j++) + d ^= gf_mul(bch, elp->c[j], syn[2*i+2-j]); + } + } + dbg("elp=%s\n", gf_poly_str(elp)); + return (elp->deg > t) ? -1 : (int)elp->deg; +} + +/* + * solve a m x m linear system in GF(2) with an expected number of solutions, + * and return the number of found solutions + */ +static int solve_linear_system(struct bch_control *bch, unsigned int *rows, + unsigned int *sol, int nsol) +{ + const int m = GF_M(bch); + unsigned int tmp, mask; + int rem, c, r, p, k, param[m]; + + k = 0; + mask = 1 << m; + + /* Gaussian elimination */ + for (c = 0; c < m; c++) { + rem = 0; + p = c-k; + /* find suitable row for elimination */ + for (r = p; r < m; r++) { + if (rows[r] & mask) { + if (r != p) { + tmp = rows[r]; + rows[r] = rows[p]; + rows[p] = tmp; + } + rem = r+1; + break; + } + } + if (rem) { + /* perform elimination on remaining rows */ + tmp = rows[p]; + for (r = rem; r < m; r++) { + if (rows[r] & mask) + rows[r] ^= tmp; + } + } else { + /* elimination not needed, store defective row index */ + param[k++] = c; + } + mask >>= 1; + } + /* rewrite system, inserting fake parameter rows */ + if (k > 0) { + p = k; + for (r = m-1; r >= 0; r--) { + if ((r > m-1-k) && rows[r]) + /* system has no solution */ + return 0; + + rows[r] = (p && (r == param[p-1])) ? + p--, 1u << (m-r) : rows[r-p]; + } + } + + if (nsol != (1 << k)) + /* unexpected number of solutions */ + return 0; + + for (p = 0; p < nsol; p++) { + /* set parameters for p-th solution */ + for (c = 0; c < k; c++) + rows[param[c]] = (rows[param[c]] & ~1)|((p >> c) & 1); + + /* compute unique solution */ + tmp = 0; + for (r = m-1; r >= 0; r--) { + mask = rows[r] & (tmp|1); + tmp |= parity(mask) << (m-r); + } + sol[p] = tmp >> 1; + } + return nsol; +} + +/* + * this function builds and solves a linear system for finding roots of a degree + * 4 affine monic polynomial X^4+aX^2+bX+c over GF(2^m). + */ +static int find_affine4_roots(struct bch_control *bch, unsigned int a, + unsigned int b, unsigned int c, + unsigned int *roots) +{ + int i, j, k; + const int m = GF_M(bch); + unsigned int mask = 0xff, t, rows[16] = {0,}; + + j = a_log(bch, b); + k = a_log(bch, a); + rows[0] = c; + + /* buid linear system to solve X^4+aX^2+bX+c = 0 */ + for (i = 0; i < m; i++) { + rows[i+1] = bch->a_pow_tab[4*i]^ + (a ? bch->a_pow_tab[mod_s(bch, k)] : 0)^ + (b ? bch->a_pow_tab[mod_s(bch, j)] : 0); + j++; + k += 2; + } + /* + * transpose 16x16 matrix before passing it to linear solver + * warning: this code assumes m < 16 + */ + for (j = 8; j != 0; j >>= 1, mask ^= (mask << j)) { + for (k = 0; k < 16; k = (k+j+1) & ~j) { + t = ((rows[k] >> j)^rows[k+j]) & mask; + rows[k] ^= (t << j); + rows[k+j] ^= t; + } + } + return solve_linear_system(bch, rows, roots, 4); +} + +/* + * compute root r of a degree 1 polynomial over GF(2^m) (returned as log(1/r)) + */ +static int find_poly_deg1_roots(struct bch_control *bch, struct gf_poly *poly, + unsigned int *roots) +{ + int n = 0; + + if (poly->c[0]) + /* poly[X] = bX+c with c!=0, root=c/b */ + roots[n++] = mod_s(bch, GF_N(bch)-bch->a_log_tab[poly->c[0]]+ + bch->a_log_tab[poly->c[1]]); + return n; +} + +/* + * compute roots of a degree 2 polynomial over GF(2^m) + */ +static int find_poly_deg2_roots(struct bch_control *bch, struct gf_poly *poly, + unsigned int *roots) +{ + int n = 0, i, l0, l1, l2; + unsigned int u, v, r; + + if (poly->c[0] && poly->c[1]) { + + l0 = bch->a_log_tab[poly->c[0]]; + l1 = bch->a_log_tab[poly->c[1]]; + l2 = bch->a_log_tab[poly->c[2]]; + + /* using z=a/bX, transform aX^2+bX+c into z^2+z+u (u=ac/b^2) */ + u = a_pow(bch, l0+l2+2*(GF_N(bch)-l1)); + /* + * let u = sum(li.a^i) i=0..m-1; then compute r = sum(li.xi): + * r^2+r = sum(li.(xi^2+xi)) = sum(li.(a^i+Tr(a^i).a^k)) = + * u + sum(li.Tr(a^i).a^k) = u+a^k.Tr(sum(li.a^i)) = u+a^k.Tr(u) + * i.e. r and r+1 are roots iff Tr(u)=0 + */ + r = 0; + v = u; + while (v) { + i = deg(v); + r ^= bch->xi_tab[i]; + v ^= (1 << i); + } + /* verify root */ + if ((gf_sqr(bch, r)^r) == u) { + /* reverse z=a/bX transformation and compute log(1/r) */ + roots[n++] = modulo(bch, 2*GF_N(bch)-l1- + bch->a_log_tab[r]+l2); + roots[n++] = modulo(bch, 2*GF_N(bch)-l1- + bch->a_log_tab[r^1]+l2); + } + } + return n; +} + +/* + * compute roots of a degree 3 polynomial over GF(2^m) + */ +static int find_poly_deg3_roots(struct bch_control *bch, struct gf_poly *poly, + unsigned int *roots) +{ + int i, n = 0; + unsigned int a, b, c, a2, b2, c2, e3, tmp[4]; + + if (poly->c[0]) { + /* transform polynomial into monic X^3 + a2X^2 + b2X + c2 */ + e3 = poly->c[3]; + c2 = gf_div(bch, poly->c[0], e3); + b2 = gf_div(bch, poly->c[1], e3); + a2 = gf_div(bch, poly->c[2], e3); + + /* (X+a2)(X^3+a2X^2+b2X+c2) = X^4+aX^2+bX+c (affine) */ + c = gf_mul(bch, a2, c2); /* c = a2c2 */ + b = gf_mul(bch, a2, b2)^c2; /* b = a2b2 + c2 */ + a = gf_sqr(bch, a2)^b2; /* a = a2^2 + b2 */ + + /* find the 4 roots of this affine polynomial */ + if (find_affine4_roots(bch, a, b, c, tmp) == 4) { + /* remove a2 from final list of roots */ + for (i = 0; i < 4; i++) { + if (tmp[i] != a2) + roots[n++] = a_ilog(bch, tmp[i]); + } + } + } + return n; +} + +/* + * compute roots of a degree 4 polynomial over GF(2^m) + */ +static int find_poly_deg4_roots(struct bch_control *bch, struct gf_poly *poly, + unsigned int *roots) +{ + int i, l, n = 0; + unsigned int a, b, c, d, e = 0, f, a2, b2, c2, e4; + + if (poly->c[0] == 0) + return 0; + + /* transform polynomial into monic X^4 + aX^3 + bX^2 + cX + d */ + e4 = poly->c[4]; + d = gf_div(bch, poly->c[0], e4); + c = gf_div(bch, poly->c[1], e4); + b = gf_div(bch, poly->c[2], e4); + a = gf_div(bch, poly->c[3], e4); + + /* use Y=1/X transformation to get an affine polynomial */ + if (a) { + /* first, eliminate cX by using z=X+e with ae^2+c=0 */ + if (c) { + /* compute e such that e^2 = c/a */ + f = gf_div(bch, c, a); + l = a_log(bch, f); + l += (l & 1) ? GF_N(bch) : 0; + e = a_pow(bch, l/2); + /* + * use transformation z=X+e: + * z^4+e^4 + a(z^3+ez^2+e^2z+e^3) + b(z^2+e^2) +cz+ce+d + * z^4 + az^3 + (ae+b)z^2 + (ae^2+c)z+e^4+be^2+ae^3+ce+d + * z^4 + az^3 + (ae+b)z^2 + e^4+be^2+d + * z^4 + az^3 + b'z^2 + d' + */ + d = a_pow(bch, 2*l)^gf_mul(bch, b, f)^d; + b = gf_mul(bch, a, e)^b; + } + /* now, use Y=1/X to get Y^4 + b/dY^2 + a/dY + 1/d */ + if (d == 0) + /* assume all roots have multiplicity 1 */ + return 0; + + c2 = gf_inv(bch, d); + b2 = gf_div(bch, a, d); + a2 = gf_div(bch, b, d); + } else { + /* polynomial is already affine */ + c2 = d; + b2 = c; + a2 = b; + } + /* find the 4 roots of this affine polynomial */ + if (find_affine4_roots(bch, a2, b2, c2, roots) == 4) { + for (i = 0; i < 4; i++) { + /* post-process roots (reverse transformations) */ + f = a ? gf_inv(bch, roots[i]) : roots[i]; + roots[i] = a_ilog(bch, f^e); + } + n = 4; + } + return n; +} + +/* + * build monic, log-based representation of a polynomial + */ +static void gf_poly_logrep(struct bch_control *bch, + const struct gf_poly *a, int *rep) +{ + int i, d = a->deg, l = GF_N(bch)-a_log(bch, a->c[a->deg]); + + /* represent 0 values with -1; warning, rep[d] is not set to 1 */ + for (i = 0; i < d; i++) + rep[i] = a->c[i] ? mod_s(bch, a_log(bch, a->c[i])+l) : -1; +} + +/* + * compute polynomial Euclidean division remainder in GF(2^m)[X] + */ +static void gf_poly_mod(struct bch_control *bch, struct gf_poly *a, + const struct gf_poly *b, int *rep) +{ + int la, p, m; + unsigned int i, j, *c = a->c; + const unsigned int d = b->deg; + + if (a->deg < d) + return; + + /* reuse or compute log representation of denominator */ + if (!rep) { + rep = bch->cache; + gf_poly_logrep(bch, b, rep); + } + + for (j = a->deg; j >= d; j--) { + if (c[j]) { + la = a_log(bch, c[j]); + p = j-d; + for (i = 0; i < d; i++, p++) { + m = rep[i]; + if (m >= 0) + c[p] ^= bch->a_pow_tab[mod_s(bch, + m+la)]; + } + } + } + a->deg = d-1; + while (!c[a->deg] && a->deg) + a->deg--; +} + +/* + * compute polynomial Euclidean division quotient in GF(2^m)[X] + */ +static void gf_poly_div(struct bch_control *bch, struct gf_poly *a, + const struct gf_poly *b, struct gf_poly *q) +{ + if (a->deg >= b->deg) { + q->deg = a->deg-b->deg; + /* compute a mod b (modifies a) */ + gf_poly_mod(bch, a, b, NULL); + /* quotient is stored in upper part of polynomial a */ + memcpy(q->c, &a->c[b->deg], (1+q->deg)*sizeof(unsigned int)); + } else { + q->deg = 0; + q->c[0] = 0; + } +} + +/* + * compute polynomial GCD (Greatest Common Divisor) in GF(2^m)[X] + */ +static struct gf_poly *gf_poly_gcd(struct bch_control *bch, struct gf_poly *a, + struct gf_poly *b) +{ + struct gf_poly *tmp; + + dbg("gcd(%s,%s)=", gf_poly_str(a), gf_poly_str(b)); + + if (a->deg < b->deg) { + tmp = b; + b = a; + a = tmp; + } + + while (b->deg > 0) { + gf_poly_mod(bch, a, b, NULL); + tmp = b; + b = a; + a = tmp; + } + + dbg("%s\n", gf_poly_str(a)); + + return a; +} + +/* + * Given a polynomial f and an integer k, compute Tr(a^kX) mod f + * This is used in Berlekamp Trace algorithm for splitting polynomials + */ +static void compute_trace_bk_mod(struct bch_control *bch, int k, + const struct gf_poly *f, struct gf_poly *z, + struct gf_poly *out) +{ + const int m = GF_M(bch); + int i, j; + + /* z contains z^2j mod f */ + z->deg = 1; + z->c[0] = 0; + z->c[1] = bch->a_pow_tab[k]; + + out->deg = 0; + memset(out, 0, GF_POLY_SZ(f->deg)); + + /* compute f log representation only once */ + gf_poly_logrep(bch, f, bch->cache); + + for (i = 0; i < m; i++) { + /* add a^(k*2^i)(z^(2^i) mod f) and compute (z^(2^i) mod f)^2 */ + for (j = z->deg; j >= 0; j--) { + out->c[j] ^= z->c[j]; + z->c[2*j] = gf_sqr(bch, z->c[j]); + z->c[2*j+1] = 0; + } + if (z->deg > out->deg) + out->deg = z->deg; + + if (i < m-1) { + z->deg *= 2; + /* z^(2(i+1)) mod f = (z^(2^i) mod f)^2 mod f */ + gf_poly_mod(bch, z, f, bch->cache); + } + } + while (!out->c[out->deg] && out->deg) + out->deg--; + + dbg("Tr(a^%d.X) mod f = %s\n", k, gf_poly_str(out)); +} + +/* + * factor a polynomial using Berlekamp Trace algorithm (BTA) + */ +static void factor_polynomial(struct bch_control *bch, int k, struct gf_poly *f, + struct gf_poly **g, struct gf_poly **h) +{ + struct gf_poly *f2 = bch->poly_2t[0]; + struct gf_poly *q = bch->poly_2t[1]; + struct gf_poly *tk = bch->poly_2t[2]; + struct gf_poly *z = bch->poly_2t[3]; + struct gf_poly *gcd; + + dbg("factoring %s...\n", gf_poly_str(f)); + + *g = f; + *h = NULL; + + /* tk = Tr(a^k.X) mod f */ + compute_trace_bk_mod(bch, k, f, z, tk); + + if (tk->deg > 0) { + /* compute g = gcd(f, tk) (destructive operation) */ + gf_poly_copy(f2, f); + gcd = gf_poly_gcd(bch, f2, tk); + if (gcd->deg < f->deg) { + /* compute h=f/gcd(f,tk); this will modify f and q */ + gf_poly_div(bch, f, gcd, q); + /* store g and h in-place (clobbering f) */ + *h = &((struct gf_poly_deg1 *)f)[gcd->deg].poly; + gf_poly_copy(*g, gcd); + gf_poly_copy(*h, q); + } + } +} + +/* + * find roots of a polynomial, using BTZ algorithm; see the beginning of this + * file for details + */ +static int find_poly_roots(struct bch_control *bch, unsigned int k, + struct gf_poly *poly, unsigned int *roots) +{ + int cnt; + struct gf_poly *f1, *f2; + + switch (poly->deg) { + /* handle low degree polynomials with ad hoc techniques */ + case 1: + cnt = find_poly_deg1_roots(bch, poly, roots); + break; + case 2: + cnt = find_poly_deg2_roots(bch, poly, roots); + break; + case 3: + cnt = find_poly_deg3_roots(bch, poly, roots); + break; + case 4: + cnt = find_poly_deg4_roots(bch, poly, roots); + break; + default: + /* factor polynomial using Berlekamp Trace Algorithm (BTA) */ + cnt = 0; + if (poly->deg && (k <= GF_M(bch))) { + factor_polynomial(bch, k, poly, &f1, &f2); + if (f1) + cnt += find_poly_roots(bch, k+1, f1, roots); + if (f2) + cnt += find_poly_roots(bch, k+1, f2, roots+cnt); + } + break; + } + return cnt; +} + +#if defined(USE_CHIEN_SEARCH) +/* + * exhaustive root search (Chien) implementation - not used, included only for + * reference/comparison tests + */ +static int chien_search(struct bch_control *bch, unsigned int len, + struct gf_poly *p, unsigned int *roots) +{ + int m; + unsigned int i, j, syn, syn0, count = 0; + const unsigned int k = 8*len+bch->ecc_bits; + + /* use a log-based representation of polynomial */ + gf_poly_logrep(bch, p, bch->cache); + bch->cache[p->deg] = 0; + syn0 = gf_div(bch, p->c[0], p->c[p->deg]); + + for (i = GF_N(bch)-k+1; i <= GF_N(bch); i++) { + /* compute elp(a^i) */ + for (j = 1, syn = syn0; j <= p->deg; j++) { + m = bch->cache[j]; + if (m >= 0) + syn ^= a_pow(bch, m+j*i); + } + if (syn == 0) { + roots[count++] = GF_N(bch)-i; + if (count == p->deg) + break; + } + } + return (count == p->deg) ? count : 0; +} +#define find_poly_roots(_p, _k, _elp, _loc) chien_search(_p, len, _elp, _loc) +#endif /* USE_CHIEN_SEARCH */ + +/** + * decode_bch - decode received codeword and find bit error locations + * @bch: BCH control structure + * @data: received data, ignored if @calc_ecc is provided + * @len: data length in bytes, must always be provided + * @recv_ecc: received ecc, if NULL then assume it was XORed in @calc_ecc + * @calc_ecc: calculated ecc, if NULL then calc_ecc is computed from @data + * @syn: hw computed syndrome data (if NULL, syndrome is calculated) + * @errloc: output array of error locations + * + * Returns: + * The number of errors found, or -EBADMSG if decoding failed, or -EINVAL if + * invalid parameters were provided + * + * Depending on the available hw BCH support and the need to compute @calc_ecc + * separately (using encode_bch()), this function should be called with one of + * the following parameter configurations - + * + * by providing @data and @recv_ecc only: + * decode_bch(@bch, @data, @len, @recv_ecc, NULL, NULL, @errloc) + * + * by providing @recv_ecc and @calc_ecc: + * decode_bch(@bch, NULL, @len, @recv_ecc, @calc_ecc, NULL, @errloc) + * + * by providing ecc = recv_ecc XOR calc_ecc: + * decode_bch(@bch, NULL, @len, NULL, ecc, NULL, @errloc) + * + * by providing syndrome results @syn: + * decode_bch(@bch, NULL, @len, NULL, NULL, @syn, @errloc) + * + * Once decode_bch() has successfully returned with a positive value, error + * locations returned in array @errloc should be interpreted as follows - + * + * if (errloc[n] >= 8*len), then n-th error is located in ecc (no need for + * data correction) + * + * if (errloc[n] < 8*len), then n-th error is located in data and can be + * corrected with statement data[errloc[n]/8] ^= 1 << (errloc[n] % 8); + * + * Note that this function does not perform any data correction by itself, it + * merely indicates error locations. + */ +int decode_bch(struct bch_control *bch, const uint8_t *data, unsigned int len, + const uint8_t *recv_ecc, const uint8_t *calc_ecc, + const unsigned int *syn, unsigned int *errloc) +{ + const unsigned int ecc_words = BCH_ECC_WORDS(bch); + unsigned int nbits; + int i, err, nroots; + uint32_t sum; + + /* sanity check: make sure data length can be handled */ + if (8*len > (bch->n-bch->ecc_bits)) + return -EINVAL; + + /* if caller does not provide syndromes, compute them */ + if (!syn) { + if (!calc_ecc) { + /* compute received data ecc into an internal buffer */ + if (!data || !recv_ecc) + return -EINVAL; + encode_bch(bch, data, len, NULL); + } else { + /* load provided calculated ecc */ + load_ecc8(bch, bch->ecc_buf, calc_ecc); + } + /* load received ecc or assume it was XORed in calc_ecc */ + if (recv_ecc) { + load_ecc8(bch, bch->ecc_buf2, recv_ecc); + /* XOR received and calculated ecc */ + for (i = 0, sum = 0; i < (int)ecc_words; i++) { + bch->ecc_buf[i] ^= bch->ecc_buf2[i]; + sum |= bch->ecc_buf[i]; + } + if (!sum) + /* no error found */ + return 0; + } + compute_syndromes(bch, bch->ecc_buf, bch->syn); + syn = bch->syn; + } + + err = compute_error_locator_polynomial(bch, syn); + if (err > 0) { + nroots = find_poly_roots(bch, 1, bch->elp, errloc); + if (err != nroots) + err = -1; + } + if (err > 0) { + /* post-process raw error locations for easier correction */ + nbits = (len*8)+bch->ecc_bits; + for (i = 0; i < err; i++) { + if (errloc[i] >= nbits) { + err = -1; + break; + } + errloc[i] = nbits-1-errloc[i]; + errloc[i] = (errloc[i] & ~7)|(7-(errloc[i] & 7)); + } + } + return (err >= 0) ? err : -EBADMSG; +} +EXPORT_SYMBOL_GPL(decode_bch); + +/* + * generate Galois field lookup tables + */ +static int build_gf_tables(struct bch_control *bch, unsigned int poly) +{ + unsigned int i, x = 1; + const unsigned int k = 1 << deg(poly); + + /* primitive polynomial must be of degree m */ + if (k != (1u << GF_M(bch))) + return -1; + + for (i = 0; i < GF_N(bch); i++) { + bch->a_pow_tab[i] = x; + bch->a_log_tab[x] = i; + if (i && (x == 1)) + /* polynomial is not primitive (a^i=1 with 0<i<2^m-1) */ + return -1; + x <<= 1; + if (x & k) + x ^= poly; + } + bch->a_pow_tab[GF_N(bch)] = 1; + bch->a_log_tab[0] = 0; + + return 0; +} + +/* + * compute generator polynomial remainder tables for fast encoding + */ +static void build_mod8_tables(struct bch_control *bch, const uint32_t *g) +{ + int i, j, b, d; + uint32_t data, hi, lo, *tab; + const int l = BCH_ECC_WORDS(bch); + const int plen = DIV_ROUND_UP(bch->ecc_bits+1, 32); + const int ecclen = DIV_ROUND_UP(bch->ecc_bits, 32); + + memset(bch->mod8_tab, 0, 4*256*l*sizeof(*bch->mod8_tab)); + + for (i = 0; i < 256; i++) { + /* p(X)=i is a small polynomial of weight <= 8 */ + for (b = 0; b < 4; b++) { + /* we want to compute (p(X).X^(8*b+deg(g))) mod g(X) */ + tab = bch->mod8_tab + (b*256+i)*l; + data = i << (8*b); + while (data) { + d = deg(data); + /* subtract X^d.g(X) from p(X).X^(8*b+deg(g)) */ + data ^= g[0] >> (31-d); + for (j = 0; j < ecclen; j++) { + hi = (d < 31) ? g[j] << (d+1) : 0; + lo = (j+1 < plen) ? + g[j+1] >> (31-d) : 0; + tab[j] ^= hi|lo; + } + } + } + } +} + +/* + * build a base for factoring degree 2 polynomials + */ +static int build_deg2_base(struct bch_control *bch) +{ + const int m = GF_M(bch); + int i, j, r; + unsigned int sum, x, y, remaining, ak = 0, xi[m]; + + /* find k s.t. Tr(a^k) = 1 and 0 <= k < m */ + for (i = 0; i < m; i++) { + for (j = 0, sum = 0; j < m; j++) + sum ^= a_pow(bch, i*(1 << j)); + + if (sum) { + ak = bch->a_pow_tab[i]; + break; + } + } + /* find xi, i=0..m-1 such that xi^2+xi = a^i+Tr(a^i).a^k */ + remaining = m; + memset(xi, 0, sizeof(xi)); + + for (x = 0; (x <= GF_N(bch)) && remaining; x++) { + y = gf_sqr(bch, x)^x; + for (i = 0; i < 2; i++) { + r = a_log(bch, y); + if (y && (r < m) && !xi[r]) { + bch->xi_tab[r] = x; + xi[r] = 1; + remaining--; + dbg("x%d = %x\n", r, x); + break; + } + y ^= ak; + } + } + /* should not happen but check anyway */ + return remaining ? -1 : 0; +} + +static void *bch_alloc(size_t size, int *err) +{ + void *ptr; + + ptr = kmalloc(size, GFP_KERNEL); + if (ptr == NULL) + *err = 1; + return ptr; +} + +/* + * compute generator polynomial for given (m,t) parameters. + */ +static uint32_t *compute_generator_polynomial(struct bch_control *bch) +{ + const unsigned int m = GF_M(bch); + const unsigned int t = GF_T(bch); + int n, err = 0; + unsigned int i, j, nbits, r, word, *roots; + struct gf_poly *g; + uint32_t *genpoly; + + g = bch_alloc(GF_POLY_SZ(m*t), &err); + roots = bch_alloc((bch->n+1)*sizeof(*roots), &err); + genpoly = bch_alloc(DIV_ROUND_UP(m*t+1, 32)*sizeof(*genpoly), &err); + + if (err) { + kfree(genpoly); + genpoly = NULL; + goto finish; + } + + /* enumerate all roots of g(X) */ + memset(roots , 0, (bch->n+1)*sizeof(*roots)); + for (i = 0; i < t; i++) { + for (j = 0, r = 2*i+1; j < m; j++) { + roots[r] = 1; + r = mod_s(bch, 2*r); + } + } + /* build generator polynomial g(X) */ + g->deg = 0; + g->c[0] = 1; + for (i = 0; i < GF_N(bch); i++) { + if (roots[i]) { + /* multiply g(X) by (X+root) */ + r = bch->a_pow_tab[i]; + g->c[g->deg+1] = 1; + for (j = g->deg; j > 0; j--) + g->c[j] = gf_mul(bch, g->c[j], r)^g->c[j-1]; + + g->c[0] = gf_mul(bch, g->c[0], r); + g->deg++; + } + } + /* store left-justified binary representation of g(X) */ + n = g->deg+1; + i = 0; + + while (n > 0) { + nbits = (n > 32) ? 32 : n; + for (j = 0, word = 0; j < nbits; j++) { + if (g->c[n-1-j]) + word |= 1u << (31-j); + } + genpoly[i++] = word; + n -= nbits; + } + bch->ecc_bits = g->deg; + +finish: + kfree(g); + kfree(roots); + + return genpoly; +} + +/** + * init_bch - initialize a BCH encoder/decoder + * @m: Galois field order, should be in the range 5-15 + * @t: maximum error correction capability, in bits + * @prim_poly: user-provided primitive polynomial (or 0 to use default) + * + * Returns: + * a newly allocated BCH control structure if successful, NULL otherwise + * + * This initialization can take some time, as lookup tables are built for fast + * encoding/decoding; make sure not to call this function from a time critical + * path. Usually, init_bch() should be called on module/driver init and + * free_bch() should be called to release memory on exit. + * + * You may provide your own primitive polynomial of degree @m in argument + * @prim_poly, or let init_bch() use its default polynomial. + * + * Once init_bch() has successfully returned a pointer to a newly allocated + * BCH control structure, ecc length in bytes is given by member @ecc_bytes of + * the structure. + */ +struct bch_control *init_bch(int m, int t, unsigned int prim_poly) +{ + int err = 0; + unsigned int i, words; + uint32_t *genpoly; + struct bch_control *bch = NULL; + + const int min_m = 5; + const int max_m = 15; + + /* default primitive polynomials */ + static const unsigned int prim_poly_tab[] = { + 0x25, 0x43, 0x83, 0x11d, 0x211, 0x409, 0x805, 0x1053, 0x201b, + 0x402b, 0x8003, + }; + +#if defined(CONFIG_BCH_CONST_PARAMS) + if ((m != (CONFIG_BCH_CONST_M)) || (t != (CONFIG_BCH_CONST_T))) { + printk(KERN_ERR "bch encoder/decoder was configured to support " + "parameters m=%d, t=%d only!\n", + CONFIG_BCH_CONST_M, CONFIG_BCH_CONST_T); + goto fail; + } +#endif + if ((m < min_m) || (m > max_m)) + /* + * values of m greater than 15 are not currently supported; + * supporting m > 15 would require changing table base type + * (uint16_t) and a small patch in matrix transposition + */ + goto fail; + + /* sanity checks */ + if ((t < 1) || (m*t >= ((1 << m)-1))) + /* invalid t value */ + goto fail; + + /* select a primitive polynomial for generating GF(2^m) */ + if (prim_poly == 0) + prim_poly = prim_poly_tab[m-min_m]; + + bch = kzalloc(sizeof(*bch), GFP_KERNEL); + if (bch == NULL) + goto fail; + + bch->m = m; + bch->t = t; + bch->n = (1 << m)-1; + words = DIV_ROUND_UP(m*t, 32); + bch->ecc_bytes = DIV_ROUND_UP(m*t, 8); + bch->a_pow_tab = bch_alloc((1+bch->n)*sizeof(*bch->a_pow_tab), &err); + bch->a_log_tab = bch_alloc((1+bch->n)*sizeof(*bch->a_log_tab), &err); + bch->mod8_tab = bch_alloc(words*1024*sizeof(*bch->mod8_tab), &err); + bch->ecc_buf = bch_alloc(words*sizeof(*bch->ecc_buf), &err); + bch->ecc_buf2 = bch_alloc(words*sizeof(*bch->ecc_buf2), &err); + bch->xi_tab = bch_alloc(m*sizeof(*bch->xi_tab), &err); + bch->syn = bch_alloc(2*t*sizeof(*bch->syn), &err); + bch->cache = bch_alloc(2*t*sizeof(*bch->cache), &err); + bch->elp = bch_alloc((t+1)*sizeof(struct gf_poly_deg1), &err); + + for (i = 0; i < ARRAY_SIZE(bch->poly_2t); i++) + bch->poly_2t[i] = bch_alloc(GF_POLY_SZ(2*t), &err); + + if (err) + goto fail; + + err = build_gf_tables(bch, prim_poly); + if (err) + goto fail; + + /* use generator polynomial for computing encoding tables */ + genpoly = compute_generator_polynomial(bch); + if (genpoly == NULL) + goto fail; + + build_mod8_tables(bch, genpoly); + kfree(genpoly); + + err = build_deg2_base(bch); + if (err) + goto fail; + + return bch; + +fail: + free_bch(bch); + return NULL; +} +EXPORT_SYMBOL_GPL(init_bch); + +/** + * free_bch - free the BCH control structure + * @bch: BCH control structure to release + */ +void free_bch(struct bch_control *bch) +{ + unsigned int i; + + if (bch) { + kfree(bch->a_pow_tab); + kfree(bch->a_log_tab); + kfree(bch->mod8_tab); + kfree(bch->ecc_buf); + kfree(bch->ecc_buf2); + kfree(bch->xi_tab); + kfree(bch->syn); + kfree(bch->cache); + kfree(bch->elp); + + for (i = 0; i < ARRAY_SIZE(bch->poly_2t); i++) + kfree(bch->poly_2t[i]); + + kfree(bch); + } +} +EXPORT_SYMBOL_GPL(free_bch); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ivan Djelic <ivan.djelic@parrot.com>"); +MODULE_DESCRIPTION("Binary BCH encoder/decoder"); -- cgit v1.2.3 From 1065cda8a1a57d0d3bfccdce1a655a84439d24e0 Mon Sep 17 00:00:00 2001 From: Steffen Sledz <sledz@dresearch.de> Date: Thu, 10 Mar 2011 09:05:12 +0100 Subject: mtd: cfi: add support for AMIC flashes (e.g. A29L160AT) Signed-off-by: Steffen Sledz <sledz@dresearch.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/chips/cfi_cmdset_0002.c | 1 + include/linux/mtd/cfi.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 7e9c4e9c274a..f9a5331e9445 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -349,6 +349,7 @@ static struct cfi_fixup cfi_fixup_table[] = { { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri }, #ifdef AMD_BOOTLOC_BUG { CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock }, + { CFI_MFR_AMIC, CFI_ID_ANY, fixup_amd_bootblock }, { CFI_MFR_MACRONIX, CFI_ID_ANY, fixup_amd_bootblock }, #endif { CFI_MFR_AMD, 0x0050, fixup_use_secsi }, diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index a9baee6864af..0d823f2dd667 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -535,6 +535,7 @@ struct cfi_fixup { #define CFI_MFR_CONTINUATION 0x007F #define CFI_MFR_AMD 0x0001 +#define CFI_MFR_AMIC 0x0037 #define CFI_MFR_ATMEL 0x001F #define CFI_MFR_EON 0x001C #define CFI_MFR_FUJITSU 0x0004 -- cgit v1.2.3 From 629286b9561982e90a6d49893a1c641e71b6a2a3 Mon Sep 17 00:00:00 2001 From: Xiaochen Wang <wangxiaochen0@gmail.com> Date: Thu, 10 Mar 2011 22:31:39 +0800 Subject: mtd: sm_rtl: check kmalloc return value Because malloc/kzalloc may fail, we should check kmalloc/kzalloc return value in sm_create_sysfs_attributes(), mtd/sm_rtl.c and do error handling. Meanwhile, we should check sm_create_sysfs_attributes return value. Signed-off-by: Xiaochen Wang <wangxiaochen0@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/sm_ftl.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index 67822cf6c025..6405a95dc5bd 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -64,12 +64,16 @@ struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl) SM_SMALL_PAGE - SM_CIS_VENDOR_OFFSET); char *vendor = kmalloc(vendor_len, GFP_KERNEL); + if (!vendor) + goto error1; memcpy(vendor, ftl->cis_buffer + SM_CIS_VENDOR_OFFSET, vendor_len); vendor[vendor_len] = 0; /* Initialize sysfs attributes */ vendor_attribute = kzalloc(sizeof(struct sm_sysfs_attribute), GFP_KERNEL); + if (!vendor_attribute) + goto error2; sysfs_attr_init(&vendor_attribute->dev_attr.attr); @@ -83,12 +87,24 @@ struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl) /* Create array of pointers to the attributes */ attributes = kzalloc(sizeof(struct attribute *) * (NUM_ATTRIBUTES + 1), GFP_KERNEL); + if (!attributes) + goto error3; attributes[0] = &vendor_attribute->dev_attr.attr; /* Finally create the attribute group */ attr_group = kzalloc(sizeof(struct attribute_group), GFP_KERNEL); + if (!attr_group) + goto error4; attr_group->attrs = attributes; return attr_group; +error4: + kfree(attributes); +error3: + kfree(vendor_attribute); +error2: + kfree(vendor); +error1: + return NULL; } void sm_delete_sysfs_attributes(struct sm_ftl *ftl) @@ -1178,6 +1194,8 @@ static void sm_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) } ftl->disk_attributes = sm_create_sysfs_attributes(ftl); + if (!ftl->disk_attributes) + goto error6; trans->disk_attributes = ftl->disk_attributes; sm_printk("Found %d MiB xD/SmartMedia FTL on mtd%d", -- cgit v1.2.3 From 89d8d32060de17c23f761df74799c7c07b79dd01 Mon Sep 17 00:00:00 2001 From: David Woodhouse <David.Woodhouse@intel.com> Date: Fri, 11 Mar 2011 15:17:41 +0000 Subject: mtd: fix printf format warnings, mostly lack of %zd for size_t, in mtdswap Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/mtdswap.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c index 57e6cc30bc42..a65594fee4a3 100644 --- a/drivers/mtd/mtdswap.c +++ b/drivers/mtd/mtdswap.c @@ -331,7 +331,7 @@ static int mtdswap_read_oob(struct mtdswap_dev *d, loff_t from, if (ops->oobretlen < ops->ooblen) { dev_warn(d->dev, "Read OOB return short read (%zd bytes not " - "%d) for block at %08llx\n", + "%zd) for block at %08llx\n", ops->oobretlen, ops->ooblen, from); return -EIO; } @@ -421,7 +421,7 @@ static int mtdswap_write_marker(struct mtdswap_dev *d, struct swap_eb *eb, if (ops.oobretlen != ops.ooblen) { dev_warn(d->dev, "Short OOB write for block at %08llx: " - "%zd not %d\n", + "%zd not %zd\n", offset, ops.oobretlen, ops.ooblen); return ret; } @@ -705,13 +705,13 @@ retry: } if (ret < 0) { - dev_err(d->dev, "Write to MTD device failed: %d (%d written)", + dev_err(d->dev, "Write to MTD device failed: %d (%zd written)", ret, retlen); goto err; } if (retlen != PAGE_SIZE) { - dev_err(d->dev, "Short write to MTD device: %d written", + dev_err(d->dev, "Short write to MTD device: %zd written", retlen); ret = -EIO; goto err; @@ -758,7 +758,7 @@ retry: } if (retlen != PAGE_SIZE) { - dev_err(d->dev, "Short read: %d (block %u)\n", retlen, + dev_err(d->dev, "Short read: %zd (block %u)\n", retlen, oldblock); ret = -EIO; goto read_error; @@ -1188,7 +1188,7 @@ retry: } if (retlen != PAGE_SIZE) { - dev_err(d->dev, "Short read %d\n", retlen); + dev_err(d->dev, "Short read %zd\n", retlen); return -EIO; } @@ -1304,7 +1304,7 @@ static int mtdswap_show(struct seq_file *s, void *data) seq_printf(s, "discarded pages count: %llu\n", d->discard_page_count); seq_printf(s, "\n"); - seq_printf(s, "total pages: %lu\n", pages); + seq_printf(s, "total pages: %u\n", pages); seq_printf(s, "pages mapped: %u\n", mapped); return 0; @@ -1458,7 +1458,7 @@ static void mtdswap_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) oinfo = mtd->ecclayout; if (!mtd->oobsize || !oinfo || oinfo->oobavail < MTDSWAP_OOBSIZE) { printk(KERN_ERR "%s: Not enough free bytes in OOB, " - "%d available, %u needed.\n", + "%d available, %lu needed.\n", MTDSWAP_PREFIX, oinfo->oobavail, MTDSWAP_OOBSIZE); return; } -- cgit v1.2.3 From 193bd40026443835e1b96c79d5efe559d01509ae Mon Sep 17 00:00:00 2001 From: Ivan Djelic <ivan.djelic@parrot.com> Date: Fri, 11 Mar 2011 11:05:33 +0100 Subject: mtd: nand: add software BCH ECC support This patch adds software BCH ECC support to mtd, in order to handle recent NAND device ecc requirements (4 bits or more). It does so by adding a new ecc mode (NAND_ECC_SOFT_BCH) for use by board drivers, and a new Kconfig option to enable BCH support. It relies on the generic BCH library introduced in a previous patch. When a board driver uses mode NAND_ECC_SOFT_BCH, it should also set fields chip->ecc.size and chip->ecc.bytes to select BCH ecc data size and required error correction capability. See nand_bch_init() documentation for details. It has been tested on the following platforms using mtd-utils, UBI and UBIFS: x86 (with nandsim), arm926ejs. Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/Kconfig | 15 +++ drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/nand_base.c | 40 ++++++- drivers/mtd/nand/nand_bch.c | 243 +++++++++++++++++++++++++++++++++++++++++++ include/linux/mtd/nand.h | 3 + include/linux/mtd/nand_bch.h | 72 +++++++++++++ 6 files changed, 373 insertions(+), 1 deletion(-) create mode 100644 drivers/mtd/nand/nand_bch.c create mode 100644 include/linux/mtd/nand_bch.h diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index c89592239bc7..78205ac2b10f 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -31,6 +31,21 @@ config MTD_NAND_VERIFY_WRITE device thinks the write was successful, a bit could have been flipped accidentally due to device wear or something else. +config MTD_NAND_BCH + tristate + select BCH + depends on MTD_NAND_ECC_BCH + default MTD_NAND + +config MTD_NAND_ECC_BCH + bool "Support software BCH ECC" + default n + help + This enables support for software BCH error correction. Binary BCH + codes are more powerful and cpu intensive than traditional Hamming + ECC codes. They are used with NAND devices requiring more than 1 bit + of error correction. + config MTD_SM_COMMON tristate default n diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 8ad6faec72cb..5745d831168e 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_MTD_NAND) += nand.o obj-$(CONFIG_MTD_NAND_ECC) += nand_ecc.o +obj-$(CONFIG_MTD_NAND_BCH) += nand_bch.o obj-$(CONFIG_MTD_NAND_IDS) += nand_ids.o obj-$(CONFIG_MTD_SM_COMMON) += sm_common.o diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index da7604050347..85cfc061d41c 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -42,6 +42,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> #include <linux/mtd/nand_ecc.h> +#include <linux/mtd/nand_bch.h> #include <linux/interrupt.h> #include <linux/bitops.h> #include <linux/leds.h> @@ -3248,7 +3249,7 @@ int nand_scan_tail(struct mtd_info *mtd) /* * If no default placement scheme is given, select an appropriate one */ - if (!chip->ecc.layout) { + if (!chip->ecc.layout && (chip->ecc.mode != NAND_ECC_SOFT_BCH)) { switch (mtd->oobsize) { case 8: chip->ecc.layout = &nand_oob_8; @@ -3351,6 +3352,40 @@ int nand_scan_tail(struct mtd_info *mtd) chip->ecc.bytes = 3; break; + case NAND_ECC_SOFT_BCH: + if (!mtd_nand_has_bch()) { + printk(KERN_WARNING "CONFIG_MTD_ECC_BCH not enabled\n"); + BUG(); + } + chip->ecc.calculate = nand_bch_calculate_ecc; + chip->ecc.correct = nand_bch_correct_data; + chip->ecc.read_page = nand_read_page_swecc; + chip->ecc.read_subpage = nand_read_subpage; + chip->ecc.write_page = nand_write_page_swecc; + chip->ecc.read_page_raw = nand_read_page_raw; + chip->ecc.write_page_raw = nand_write_page_raw; + chip->ecc.read_oob = nand_read_oob_std; + chip->ecc.write_oob = nand_write_oob_std; + /* + * Board driver should supply ecc.size and ecc.bytes values to + * select how many bits are correctable; see nand_bch_init() + * for details. + * Otherwise, default to 4 bits for large page devices + */ + if (!chip->ecc.size && (mtd->oobsize >= 64)) { + chip->ecc.size = 512; + chip->ecc.bytes = 7; + } + chip->ecc.priv = nand_bch_init(mtd, + chip->ecc.size, + chip->ecc.bytes, + &chip->ecc.layout); + if (!chip->ecc.priv) { + printk(KERN_WARNING "BCH ECC initialization failed!\n"); + BUG(); + } + break; + case NAND_ECC_NONE: printk(KERN_WARNING "NAND_ECC_NONE selected by board driver. " "This is not recommended !!\n"); @@ -3501,6 +3536,9 @@ void nand_release(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; + if (chip->ecc.mode == NAND_ECC_SOFT_BCH) + nand_bch_free((struct nand_bch_control *)chip->ecc.priv); + #ifdef CONFIG_MTD_PARTITIONS /* Deregister partitions */ del_mtd_partitions(mtd); diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c new file mode 100644 index 000000000000..0f931e757116 --- /dev/null +++ b/drivers/mtd/nand/nand_bch.c @@ -0,0 +1,243 @@ +/* + * This file provides ECC correction for more than 1 bit per block of data, + * using binary BCH codes. It relies on the generic BCH library lib/bch.c. + * + * Copyright © 2011 Ivan Djelic <ivan.djelic@parrot.com> + * + * This file is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 or (at your option) any + * later version. + * + * This file is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this file; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/bitops.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/nand_bch.h> +#include <linux/bch.h> + +/** + * struct nand_bch_control - private NAND BCH control structure + * @bch: BCH control structure + * @ecclayout: private ecc layout for this BCH configuration + * @errloc: error location array + * @eccmask: XOR ecc mask, allows erased pages to be decoded as valid + */ +struct nand_bch_control { + struct bch_control *bch; + struct nand_ecclayout ecclayout; + unsigned int *errloc; + unsigned char *eccmask; +}; + +/** + * nand_bch_calculate_ecc - [NAND Interface] Calculate ECC for data block + * @mtd: MTD block structure + * @buf: input buffer with raw data + * @code: output buffer with ECC + */ +int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf, + unsigned char *code) +{ + const struct nand_chip *chip = mtd->priv; + struct nand_bch_control *nbc = chip->ecc.priv; + unsigned int i; + + memset(code, 0, chip->ecc.bytes); + encode_bch(nbc->bch, buf, chip->ecc.size, code); + + /* apply mask so that an erased page is a valid codeword */ + for (i = 0; i < chip->ecc.bytes; i++) + code[i] ^= nbc->eccmask[i]; + + return 0; +} +EXPORT_SYMBOL(nand_bch_calculate_ecc); + +/** + * nand_bch_correct_data - [NAND Interface] Detect and correct bit error(s) + * @mtd: MTD block structure + * @buf: raw data read from the chip + * @read_ecc: ECC from the chip + * @calc_ecc: the ECC calculated from raw data + * + * Detect and correct bit errors for a data byte block + */ +int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf, + unsigned char *read_ecc, unsigned char *calc_ecc) +{ + const struct nand_chip *chip = mtd->priv; + struct nand_bch_control *nbc = chip->ecc.priv; + unsigned int *errloc = nbc->errloc; + int i, count; + + count = decode_bch(nbc->bch, NULL, chip->ecc.size, read_ecc, calc_ecc, + NULL, errloc); + if (count > 0) { + for (i = 0; i < count; i++) { + if (errloc[i] < (chip->ecc.size*8)) + /* error is located in data, correct it */ + buf[errloc[i] >> 3] ^= (1 << (errloc[i] & 7)); + /* else error in ecc, no action needed */ + + DEBUG(MTD_DEBUG_LEVEL0, "%s: corrected bitflip %u\n", + __func__, errloc[i]); + } + } else if (count < 0) { + printk(KERN_ERR "ecc unrecoverable error\n"); + count = -1; + } + return count; +} +EXPORT_SYMBOL(nand_bch_correct_data); + +/** + * nand_bch_init - [NAND Interface] Initialize NAND BCH error correction + * @mtd: MTD block structure + * @eccsize: ecc block size in bytes + * @eccbytes: ecc length in bytes + * @ecclayout: output default layout + * + * Returns: + * a pointer to a new NAND BCH control structure, or NULL upon failure + * + * Initialize NAND BCH error correction. Parameters @eccsize and @eccbytes + * are used to compute BCH parameters m (Galois field order) and t (error + * correction capability). @eccbytes should be equal to the number of bytes + * required to store m*t bits, where m is such that 2^m-1 > @eccsize*8. + * + * Example: to configure 4 bit correction per 512 bytes, you should pass + * @eccsize = 512 (thus, m=13 is the smallest integer such that 2^m-1 > 512*8) + * @eccbytes = 7 (7 bytes are required to store m*t = 13*4 = 52 bits) + */ +struct nand_bch_control * +nand_bch_init(struct mtd_info *mtd, unsigned int eccsize, unsigned int eccbytes, + struct nand_ecclayout **ecclayout) +{ + unsigned int m, t, eccsteps, i; + struct nand_ecclayout *layout; + struct nand_bch_control *nbc = NULL; + unsigned char *erased_page; + + if (!eccsize || !eccbytes) { + printk(KERN_WARNING "ecc parameters not supplied\n"); + goto fail; + } + + m = fls(1+8*eccsize); + t = (eccbytes*8)/m; + + nbc = kzalloc(sizeof(*nbc), GFP_KERNEL); + if (!nbc) + goto fail; + + nbc->bch = init_bch(m, t, 0); + if (!nbc->bch) + goto fail; + + /* verify that eccbytes has the expected value */ + if (nbc->bch->ecc_bytes != eccbytes) { + printk(KERN_WARNING "invalid eccbytes %u, should be %u\n", + eccbytes, nbc->bch->ecc_bytes); + goto fail; + } + + eccsteps = mtd->writesize/eccsize; + + /* if no ecc placement scheme was provided, build one */ + if (!*ecclayout) { + + /* handle large page devices only */ + if (mtd->oobsize < 64) { + printk(KERN_WARNING "must provide an oob scheme for " + "oobsize %d\n", mtd->oobsize); + goto fail; + } + + layout = &nbc->ecclayout; + layout->eccbytes = eccsteps*eccbytes; + + /* reserve 2 bytes for bad block marker */ + if (layout->eccbytes+2 > mtd->oobsize) { + printk(KERN_WARNING "no suitable oob scheme available " + "for oobsize %d eccbytes %u\n", mtd->oobsize, + eccbytes); + goto fail; + } + /* put ecc bytes at oob tail */ + for (i = 0; i < layout->eccbytes; i++) + layout->eccpos[i] = mtd->oobsize-layout->eccbytes+i; + + layout->oobfree[0].offset = 2; + layout->oobfree[0].length = mtd->oobsize-2-layout->eccbytes; + + *ecclayout = layout; + } + + /* sanity checks */ + if (8*(eccsize+eccbytes) >= (1 << m)) { + printk(KERN_WARNING "eccsize %u is too large\n", eccsize); + goto fail; + } + if ((*ecclayout)->eccbytes != (eccsteps*eccbytes)) { + printk(KERN_WARNING "invalid ecc layout\n"); + goto fail; + } + + nbc->eccmask = kmalloc(eccbytes, GFP_KERNEL); + nbc->errloc = kmalloc(t*sizeof(*nbc->errloc), GFP_KERNEL); + if (!nbc->eccmask || !nbc->errloc) + goto fail; + /* + * compute and store the inverted ecc of an erased ecc block + */ + erased_page = kmalloc(eccsize, GFP_KERNEL); + if (!erased_page) + goto fail; + + memset(erased_page, 0xff, eccsize); + memset(nbc->eccmask, 0, eccbytes); + encode_bch(nbc->bch, erased_page, eccsize, nbc->eccmask); + kfree(erased_page); + + for (i = 0; i < eccbytes; i++) + nbc->eccmask[i] ^= 0xff; + + return nbc; +fail: + nand_bch_free(nbc); + return NULL; +} +EXPORT_SYMBOL(nand_bch_init); + +/** + * nand_bch_free - [NAND Interface] Release NAND BCH ECC resources + * @nbc: NAND BCH control structure + */ +void nand_bch_free(struct nand_bch_control *nbc) +{ + if (nbc) { + free_bch(nbc->bch); + kfree(nbc->errloc); + kfree(nbc->eccmask); + kfree(nbc); + } +} +EXPORT_SYMBOL(nand_bch_free); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ivan Djelic <ivan.djelic@parrot.com>"); +MODULE_DESCRIPTION("NAND software BCH ECC support"); diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 1f489b247a29..ae67ef56a8f5 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -140,6 +140,7 @@ typedef enum { NAND_ECC_HW, NAND_ECC_HW_SYNDROME, NAND_ECC_HW_OOB_FIRST, + NAND_ECC_SOFT_BCH, } nand_ecc_modes_t; /* @@ -339,6 +340,7 @@ struct nand_hw_control { * @prepad: padding information for syndrome based ecc generators * @postpad: padding information for syndrome based ecc generators * @layout: ECC layout control struct pointer + * @priv: pointer to private ecc control data * @hwctl: function to control hardware ecc generator. Must only * be provided if an hardware ECC is available * @calculate: function for ecc calculation or readback from ecc hardware @@ -362,6 +364,7 @@ struct nand_ecc_ctrl { int prepad; int postpad; struct nand_ecclayout *layout; + void *priv; void (*hwctl)(struct mtd_info *mtd, int mode); int (*calculate)(struct mtd_info *mtd, const uint8_t *dat, uint8_t *ecc_code); diff --git a/include/linux/mtd/nand_bch.h b/include/linux/mtd/nand_bch.h new file mode 100644 index 000000000000..74acf5367556 --- /dev/null +++ b/include/linux/mtd/nand_bch.h @@ -0,0 +1,72 @@ +/* + * Copyright © 2011 Ivan Djelic <ivan.djelic@parrot.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This file is the header for the NAND BCH ECC implementation. + */ + +#ifndef __MTD_NAND_BCH_H__ +#define __MTD_NAND_BCH_H__ + +struct mtd_info; +struct nand_bch_control; + +#if defined(CONFIG_MTD_NAND_ECC_BCH) + +static inline int mtd_nand_has_bch(void) { return 1; } + +/* + * Calculate BCH ecc code + */ +int nand_bch_calculate_ecc(struct mtd_info *mtd, const u_char *dat, + u_char *ecc_code); + +/* + * Detect and correct bit errors + */ +int nand_bch_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, + u_char *calc_ecc); +/* + * Initialize BCH encoder/decoder + */ +struct nand_bch_control * +nand_bch_init(struct mtd_info *mtd, unsigned int eccsize, + unsigned int eccbytes, struct nand_ecclayout **ecclayout); +/* + * Release BCH encoder/decoder resources + */ +void nand_bch_free(struct nand_bch_control *nbc); + +#else /* !CONFIG_MTD_NAND_ECC_BCH */ + +static inline int mtd_nand_has_bch(void) { return 0; } + +static inline int +nand_bch_calculate_ecc(struct mtd_info *mtd, const u_char *dat, + u_char *ecc_code) +{ + return -1; +} + +static inline int +nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf, + unsigned char *read_ecc, unsigned char *calc_ecc) +{ + return -1; +} + +static inline struct nand_bch_control * +nand_bch_init(struct mtd_info *mtd, unsigned int eccsize, + unsigned int eccbytes, struct nand_ecclayout **ecclayout) +{ + return NULL; +} + +static inline void nand_bch_free(struct nand_bch_control *nbc) {} + +#endif /* CONFIG_MTD_NAND_ECC_BCH */ + +#endif /* __MTD_NAND_BCH_H__ */ -- cgit v1.2.3 From fc2ff592b5b41f3f32e790dd124eeb3bc80706c8 Mon Sep 17 00:00:00 2001 From: Ivan Djelic <ivan.djelic@parrot.com> Date: Fri, 11 Mar 2011 11:05:34 +0100 Subject: mtd: nand: enable software BCH ECC in nand simulator This patch adds option 'bch' to nandsim, which can be used to enable software BCH ECC (introduced in previous patches) and select BCH error correction capability. Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> --- drivers/mtd/nand/nandsim.c | 43 ++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 42 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index a5aa99f014ba..213181be0d9a 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -34,6 +34,7 @@ #include <linux/string.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> +#include <linux/mtd/nand_bch.h> #include <linux/mtd/partitions.h> #include <linux/delay.h> #include <linux/list.h> @@ -108,6 +109,7 @@ static unsigned int rptwear = 0; static unsigned int overridesize = 0; static char *cache_file = NULL; static unsigned int bbt; +static unsigned int bch; module_param(first_id_byte, uint, 0400); module_param(second_id_byte, uint, 0400); @@ -132,6 +134,7 @@ module_param(rptwear, uint, 0400); module_param(overridesize, uint, 0400); module_param(cache_file, charp, 0400); module_param(bbt, uint, 0400); +module_param(bch, uint, 0400); MODULE_PARM_DESC(first_id_byte, "The first byte returned by NAND Flash 'read ID' command (manufacturer ID)"); MODULE_PARM_DESC(second_id_byte, "The second byte returned by NAND Flash 'read ID' command (chip ID)"); @@ -165,6 +168,8 @@ MODULE_PARM_DESC(overridesize, "Specifies the NAND Flash size overriding the I " e.g. 5 means a size of 32 erase blocks"); MODULE_PARM_DESC(cache_file, "File to use to cache nand pages instead of memory"); MODULE_PARM_DESC(bbt, "0 OOB, 1 BBT with marker in OOB, 2 BBT with marker in data area"); +MODULE_PARM_DESC(bch, "Enable BCH ecc and set how many bits should " + "be correctable in 512-byte blocks"); /* The largest possible page size */ #define NS_LARGEST_PAGE_SIZE 4096 @@ -2309,7 +2314,43 @@ static int __init ns_init_module(void) if ((retval = parse_gravepages()) != 0) goto error; - if ((retval = nand_scan(nsmtd, 1)) != 0) { + retval = nand_scan_ident(nsmtd, 1, NULL); + if (retval) { + NS_ERR("cannot scan NAND Simulator device\n"); + if (retval > 0) + retval = -ENXIO; + goto error; + } + + if (bch) { + unsigned int eccsteps, eccbytes; + if (!mtd_nand_has_bch()) { + NS_ERR("BCH ECC support is disabled\n"); + retval = -EINVAL; + goto error; + } + /* use 512-byte ecc blocks */ + eccsteps = nsmtd->writesize/512; + eccbytes = (bch*13+7)/8; + /* do not bother supporting small page devices */ + if ((nsmtd->oobsize < 64) || !eccsteps) { + NS_ERR("bch not available on small page devices\n"); + retval = -EINVAL; + goto error; + } + if ((eccbytes*eccsteps+2) > nsmtd->oobsize) { + NS_ERR("invalid bch value %u\n", bch); + retval = -EINVAL; + goto error; + } + chip->ecc.mode = NAND_ECC_SOFT_BCH; + chip->ecc.size = 512; + chip->ecc.bytes = eccbytes; + NS_INFO("using %u-bit/%u bytes BCH ECC\n", bch, chip->ecc.size); + } + + retval = nand_scan_tail(nsmtd); + if (retval) { NS_ERR("can't register NAND Simulator\n"); if (retval > 0) retval = -ENXIO; -- cgit v1.2.3 From 957c2ec558caff09a3bdf333871fc617830f063d Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com> Date: Fri, 11 Mar 2011 20:06:09 +0100 Subject: cciss: export resettable host attribute This attribute, requested by Redhat, allows kexec-tools to know whether the controller can honor the reset_devices kernel parameter and actually reset the controller. For kdump to work properly it is necessary that the reset_devices parameter be honored. This attribute enables kexec-tools to warn the user if they attempt to designate a non-resettable controller as the dump device. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- .../ABI/testing/sysfs-bus-pci-devices-cciss | 12 +++++++ drivers/block/cciss.c | 39 ++++++++++++++++++++++ 2 files changed, 51 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss b/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss index 4f29e5f1ebfa..f5bb0a3bb8c0 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss +++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss @@ -59,3 +59,15 @@ Kernel Version: 2.6.31 Contact: iss_storagedev@hp.com Description: Displays the usage count (number of opens) of logical drive Y of controller X. + +Where: /sys/bus/pci/devices/<dev>/ccissX/resettable +Date: February 2011 +Kernel Version: 2.6.38 +Contact: iss_storagedev@hp.com +Description: Value of 1 indicates the controller can honor the reset_devices + kernel parameter. Value of 0 indicates reset_devices cannot be + honored. This is to allow, for example, kexec tools to be able + to warn the user if they designate an unresettable device as + a dump device, as kdump requires resetting the device in order + to work reliably. + diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 35658f445fca..eeed7aeb0b83 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -556,6 +556,44 @@ static void __devinit cciss_procinit(ctlr_info_t *h) #define to_hba(n) container_of(n, struct ctlr_info, dev) #define to_drv(n) container_of(n, drive_info_struct, dev) +/* List of controllers which cannot be reset on kexec with reset_devices */ +static u32 unresettable_controller[] = { + 0x324a103C, /* Smart Array P712m */ + 0x324b103C, /* SmartArray P711m */ + 0x3223103C, /* Smart Array P800 */ + 0x3234103C, /* Smart Array P400 */ + 0x3235103C, /* Smart Array P400i */ + 0x3211103C, /* Smart Array E200i */ + 0x3212103C, /* Smart Array E200 */ + 0x3213103C, /* Smart Array E200i */ + 0x3214103C, /* Smart Array E200i */ + 0x3215103C, /* Smart Array E200i */ + 0x3237103C, /* Smart Array E500 */ + 0x323D103C, /* Smart Array P700m */ + 0x409C0E11, /* Smart Array 6400 */ + 0x409D0E11, /* Smart Array 6400 EM */ +}; + +static int ctlr_is_resettable(struct ctlr_info *h) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(unresettable_controller); i++) + if (unresettable_controller[i] == h->board_id) + return 0; + return 1; +} + +static ssize_t host_show_resettable(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ctlr_info *h = to_hba(dev); + + return snprintf(buf, 20, "%d\n", ctlr_is_resettable(h)); +} +static DEVICE_ATTR(resettable, S_IRUGO, host_show_resettable, NULL); + static ssize_t host_store_rescan(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -741,6 +779,7 @@ static DEVICE_ATTR(usage_count, S_IRUGO, cciss_show_usage_count, NULL); static struct attribute *cciss_host_attrs[] = { &dev_attr_rescan.attr, + &dev_attr_resettable.attr, NULL }; -- cgit v1.2.3 From 978eb516a4e1a1b47163518d6f5d5e81ab27a583 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com> Date: Fri, 11 Mar 2011 20:07:38 +0100 Subject: cciss: Add missing allocation in scsi_cmd_stack_setup and corresponding deallocation This bit got lost somewhere along the way. Without this, panic. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Cc: stable@kernel.org Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/block/cciss_scsi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index 727d0225b7d0..3bfbde8b4013 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -226,6 +226,13 @@ scsi_cmd_stack_setup(ctlr_info_t *h, struct cciss_scsi_adapter_data_t *sa) return -ENOMEM; } + stk->elem = kmalloc(sizeof(stk->elem[0]) * stk->nelems, GFP_KERNEL); + if (!stk->elem) { + pci_free_consistent(h->pdev, size, stk->pool, + stk->cmd_pool_handle); + return -1; + } + for (i=0; i<CMD_STACK_SIZE; i++) { stk->elem[i] = &stk->pool[i]; stk->elem[i]->busaddr = (__u32) (stk->cmd_pool_handle + @@ -255,6 +262,8 @@ scsi_cmd_stack_free(ctlr_info_t *h) pci_free_consistent(h->pdev, size, stk->pool, stk->cmd_pool_handle); stk->pool = NULL; cciss_free_sg_chain_blocks(sa->cmd_sg_list, CMD_STACK_SIZE); + kfree(stk->elem); + stk->elem = NULL; } #if 0 -- cgit v1.2.3 From 4a765046553a88e4ec80ad84d2131b9e69ab4ab0 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com> Date: Sat, 12 Mar 2011 10:02:11 +0100 Subject: cciss: hoist tag masking out of loop In process_nonindexed_cmd, hoist figuring of masked tag out of loop since it is the same throughout. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/block/cciss.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index eeed7aeb0b83..0a296c1eff4f 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -3433,14 +3433,12 @@ static inline u32 process_indexed_cmd(ctlr_info_t *h, u32 raw_tag) /* process completion of a non-indexed command */ static inline u32 process_nonindexed_cmd(ctlr_info_t *h, u32 raw_tag) { - u32 tag; CommandList_struct *c = NULL; __u32 busaddr_masked, tag_masked; - tag = cciss_tag_discard_error_bits(raw_tag); + tag_masked = cciss_tag_discard_error_bits(raw_tag); list_for_each_entry(c, &h->cmpQ, list) { busaddr_masked = cciss_tag_discard_error_bits(c->busaddr); - tag_masked = cciss_tag_discard_error_bits(tag); if (busaddr_masked == tag_masked) { finish_cmd(h, c, raw_tag); return next_command(h); -- cgit v1.2.3 From 0498cc2a9e81de97674adde8ced8a1462a397013 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com> Date: Sat, 12 Mar 2011 10:02:16 +0100 Subject: cciss: Inform controller we are using 32-bit tags. Controller will DMA only 32-bits of the tag per command on completion if it knows we are only using 32-bit tags. Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/block/cciss.c | 25 +++++++++++++++---------- drivers/block/cciss_cmd.h | 1 + 2 files changed, 16 insertions(+), 10 deletions(-) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 0a296c1eff4f..27b04a32b0c5 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -231,7 +231,7 @@ static const struct block_device_operations cciss_fops = { */ static void set_performant_mode(ctlr_info_t *h, CommandList_struct *c) { - if (likely(h->transMethod == CFGTBL_Trans_Performant)) + if (likely(h->transMethod & CFGTBL_Trans_Performant)) c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1); } @@ -3175,10 +3175,13 @@ static inline u32 cciss_tag_to_index(u32 tag) return tag >> DIRECT_LOOKUP_SHIFT; } -static inline u32 cciss_tag_discard_error_bits(u32 tag) +static inline u32 cciss_tag_discard_error_bits(ctlr_info_t *h, u32 tag) { -#define CCISS_ERROR_BITS 0x03 - return tag & ~CCISS_ERROR_BITS; +#define CCISS_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1) +#define CCISS_SIMPLE_ERROR_BITS 0x03 + if (likely(h->transMethod & CFGTBL_Trans_Performant)) + return tag & ~CCISS_PERF_ERROR_BITS; + return tag & ~CCISS_SIMPLE_ERROR_BITS; } static inline void cciss_mark_tag_indexed(u32 *tag) @@ -3398,7 +3401,7 @@ static inline u32 next_command(ctlr_info_t *h) { u32 a; - if (unlikely(h->transMethod != CFGTBL_Trans_Performant)) + if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) return h->access.command_completed(h); if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) { @@ -3436,9 +3439,9 @@ static inline u32 process_nonindexed_cmd(ctlr_info_t *h, u32 raw_tag) CommandList_struct *c = NULL; __u32 busaddr_masked, tag_masked; - tag_masked = cciss_tag_discard_error_bits(raw_tag); + tag_masked = cciss_tag_discard_error_bits(h, raw_tag); list_for_each_entry(c, &h->cmpQ, list) { - busaddr_masked = cciss_tag_discard_error_bits(c->busaddr); + busaddr_masked = cciss_tag_discard_error_bits(h, c->busaddr); if (busaddr_masked == tag_masked) { finish_cmd(h, c, raw_tag); return next_command(h); @@ -3790,7 +3793,8 @@ static void __devinit cciss_wait_for_mode_change_ack(ctlr_info_t *h) } } -static __devinit void cciss_enter_performant_mode(ctlr_info_t *h) +static __devinit void cciss_enter_performant_mode(ctlr_info_t *h, + u32 use_short_tags) { /* This is a bit complicated. There are 8 registers on * the controller which we write to to tell it 8 different @@ -3845,7 +3849,7 @@ static __devinit void cciss_enter_performant_mode(ctlr_info_t *h) writel(0, &h->transtable->RepQCtrAddrHigh32); writel(h->reply_pool_dhandle, &h->transtable->RepQAddr0Low32); writel(0, &h->transtable->RepQAddr0High32); - writel(CFGTBL_Trans_Performant, + writel(CFGTBL_Trans_Performant | use_short_tags, &(h->cfgtable->HostWrite.TransportRequest)); writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); @@ -3892,7 +3896,8 @@ static void __devinit cciss_put_controller_into_performant_mode(ctlr_info_t *h) if ((h->reply_pool == NULL) || (h->blockFetchTable == NULL)) goto clean_up; - cciss_enter_performant_mode(h); + cciss_enter_performant_mode(h, + trans_support & CFGTBL_Trans_use_short_tags); /* Change the access methods to the performant access methods */ h->access = SA5_performant_access; diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h index 35463d2f0ee7..cd441bef031f 100644 --- a/drivers/block/cciss_cmd.h +++ b/drivers/block/cciss_cmd.h @@ -56,6 +56,7 @@ #define CFGTBL_Trans_Simple 0x00000002l #define CFGTBL_Trans_Performant 0x00000004l +#define CFGTBL_Trans_use_short_tags 0x20000000l #define CFGTBL_BusType_Ultra2 0x00000001l #define CFGTBL_BusType_Ultra3 0x00000002l -- cgit v1.2.3 From 16011131ced8bdb317e1bf03324ca78a27fa0a1c Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com> Date: Sat, 12 Mar 2011 10:02:21 +0100 Subject: cciss: Mask off error bits of c->busaddr in cmd_special_free when calling pci_free_consistent Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/block/cciss.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 27b04a32b0c5..f21116cb8b82 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -193,7 +193,7 @@ static int __devinit cciss_find_cfg_addrs(struct pci_dev *pdev, u64 *cfg_offset); static int __devinit cciss_pci_find_memory_BAR(struct pci_dev *pdev, unsigned long *memory_bar); - +static inline u32 cciss_tag_discard_error_bits(ctlr_info_t *h, u32 tag); /* performant mode helper functions */ static void calc_bucket_map(int *bucket, int num_buckets, int nsgs, @@ -1012,8 +1012,8 @@ static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c) temp64.val32.upper = c->ErrDesc.Addr.upper; pci_free_consistent(h->pdev, sizeof(ErrorInfo_struct), c->err_info, (dma_addr_t) temp64.val); - pci_free_consistent(h->pdev, sizeof(CommandList_struct), - c, (dma_addr_t) c->busaddr); + pci_free_consistent(h->pdev, sizeof(CommandList_struct), c, + (dma_addr_t) cciss_tag_discard_error_bits(h, (u32) c->busaddr)); } static inline ctlr_info_t *get_host(struct gendisk *disk) -- cgit v1.2.3 From fcab1c112ade881d884cd7b8161f7543194d12e1 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com> Date: Sat, 12 Mar 2011 10:02:24 +0100 Subject: cciss: remove unnecessary casts Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/block/cciss.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index f21116cb8b82..25267e92ce31 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1529,8 +1529,7 @@ static int cciss_bigpassthru(ctlr_info_t *h, void __user *argp) return -EINVAL; if (!capable(CAP_SYS_RAWIO)) return -EPERM; - ioc = (BIG_IOCTL_Command_struct *) - kmalloc(sizeof(*ioc), GFP_KERNEL); + ioc = kmalloc(sizeof(*ioc), GFP_KERNEL); if (!ioc) { status = -ENOMEM; goto cleanup1; -- cgit v1.2.3 From 6d9a4f9e21486fa83526a9a9fdf88b9b2cdfd299 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com> Date: Sat, 12 Mar 2011 10:02:30 +0100 Subject: cciss: fix missed command status value CMD_UNABORTABLE and fix a nearby typo, "do" that should have been "due" Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/block/cciss.c | 11 +++++++++++ drivers/block/cciss_scsi.c | 13 +++++++++++-- 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 25267e92ce31..9bf13988f1a2 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -2691,6 +2691,10 @@ static int process_sendcmd_error(ctlr_info_t *h, CommandList_struct *c) c->Request.CDB[0]); return_status = IO_NEEDS_RETRY; break; + case CMD_UNABORTABLE: + dev_warn(&h->pdev->dev, "cmd unabortable\n"); + return_status = IO_ERROR; + break; default: dev_warn(&h->pdev->dev, "cmd 0x%02x returned " "unknown status %x\n", c->Request.CDB[0], @@ -3141,6 +3145,13 @@ static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd, (cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC) ? DID_PASSTHROUGH : DID_ERROR); break; + case CMD_UNABORTABLE: + dev_warn(&h->pdev->dev, "cmd %p unabortable\n", cmd); + rq->errors = make_status_bytes(SAM_STAT_GOOD, + cmd->err_info->CommandStatus, DRIVER_OK, + cmd->rq->cmd_type == REQ_TYPE_BLOCK_PC ? + DID_PASSTHROUGH : DID_ERROR); + break; default: dev_warn(&h->pdev->dev, "cmd %p returned " "unknown status %x\n", cmd, diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index 3bfbde8b4013..8fa2a2e90b9f 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -833,13 +833,18 @@ static void complete_scsi_command(CommandList_struct *c, int timeout, break; case CMD_UNSOLICITED_ABORT: cmd->result = DID_ABORT << 16; - dev_warn(&h->pdev->dev, "%p aborted do to an " + dev_warn(&h->pdev->dev, "%p aborted due to an " "unsolicited abort\n", c); break; case CMD_TIMEOUT: cmd->result = DID_TIME_OUT << 16; dev_warn(&h->pdev->dev, "%p timedout\n", c); break; + case CMD_UNABORTABLE: + cmd->result = DID_ERROR << 16; + dev_warn(&h->pdev->dev, "c %p command " + "unabortable\n", c); + break; default: cmd->result = DID_ERROR << 16; dev_warn(&h->pdev->dev, @@ -1016,11 +1021,15 @@ cciss_scsi_interpret_error(ctlr_info_t *h, CommandList_struct *c) break; case CMD_UNSOLICITED_ABORT: dev_warn(&h->pdev->dev, - "%p aborted do to an unsolicited abort\n", c); + "%p aborted due to an unsolicited abort\n", c); break; case CMD_TIMEOUT: dev_warn(&h->pdev->dev, "%p timedout\n", c); break; + case CMD_UNABORTABLE: + dev_warn(&h->pdev->dev, + "%p unabortable\n", c); + break; default: dev_warn(&h->pdev->dev, "%p returned unknown status %x\n", -- cgit v1.2.3 From b66538014f7eae121afa99ca18488fd67536a1bf Mon Sep 17 00:00:00 2001 From: Jens Axboe <jaxboe@fusionio.com> Date: Sat, 12 Mar 2011 13:47:51 +0100 Subject: Revert "cciss: Add missing allocation in scsi_cmd_stack_setup and corresponding deallocation" This reverts commit 978eb516a4e1a1b47163518d6f5d5e81ab27a583. The commit was broken, relying on other changes that have not been committed yet. Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/block/cciss_scsi.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index 8fa2a2e90b9f..df793803f5ae 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -226,13 +226,6 @@ scsi_cmd_stack_setup(ctlr_info_t *h, struct cciss_scsi_adapter_data_t *sa) return -ENOMEM; } - stk->elem = kmalloc(sizeof(stk->elem[0]) * stk->nelems, GFP_KERNEL); - if (!stk->elem) { - pci_free_consistent(h->pdev, size, stk->pool, - stk->cmd_pool_handle); - return -1; - } - for (i=0; i<CMD_STACK_SIZE; i++) { stk->elem[i] = &stk->pool[i]; stk->elem[i]->busaddr = (__u32) (stk->cmd_pool_handle + @@ -262,8 +255,6 @@ scsi_cmd_stack_free(ctlr_info_t *h) pci_free_consistent(h->pdev, size, stk->pool, stk->cmd_pool_handle); stk->pool = NULL; cciss_free_sg_chain_blocks(sa->cmd_sg_list, CMD_STACK_SIZE); - kfree(stk->elem); - stk->elem = NULL; } #if 0 -- cgit v1.2.3 From f8d878ddbb3c08bc2f876975df674484208536ac Mon Sep 17 00:00:00 2001 From: Heiko Stuebner <heiko@sntech.de> Date: Mon, 14 Mar 2011 21:12:39 +0100 Subject: s3c_adc_battery: Fix method names when PM not set s3c_adc_battery declares wrong method names when CONFIG_PM is not set. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/s3c_adc_battery.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/power/s3c_adc_battery.c b/drivers/power/s3c_adc_battery.c index 4255f2358b13..d36c289aaef5 100644 --- a/drivers/power/s3c_adc_battery.c +++ b/drivers/power/s3c_adc_battery.c @@ -406,8 +406,8 @@ static int s3c_adc_bat_resume(struct platform_device *pdev) return 0; } #else -#define s3c_adc_battery_suspend NULL -#define s3c_adc_battery_resume NULL +#define s3c_adc_bat_suspend NULL +#define s3c_adc_bat_resume NULL #endif static struct platform_driver s3c_adc_bat_driver = { -- cgit v1.2.3 From a223246f7280422f77c15b71455fe3362d3604b4 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick <anarsoul@gmail.com> Date: Fri, 11 Mar 2011 15:09:32 +0200 Subject: z2_battery: Fix count of properties PROP_STATUS property was not counted, as result VOLTAGE_MIN property is missing in sysfs. Fix it. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Acked-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/z2_battery.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/power/z2_battery.c b/drivers/power/z2_battery.c index 81304c0bb9d3..2a9ab89f83b8 100644 --- a/drivers/power/z2_battery.c +++ b/drivers/power/z2_battery.c @@ -134,6 +134,8 @@ static int z2_batt_ps_init(struct z2_charger *charger, int props) enum power_supply_property *prop; struct z2_battery_info *info = charger->info; + if (info->charge_gpio >= 0) + props++; /* POWER_SUPPLY_PROP_STATUS */ if (info->batt_tech >= 0) props++; /* POWER_SUPPLY_PROP_TECHNOLOGY */ if (info->batt_I2C_reg >= 0) -- cgit v1.2.3 From a7d9ace4eb3a6a3c3fcb12fb05510c1893808263 Mon Sep 17 00:00:00 2001 From: Rhyland Klein <rklein@nvidia.com> Date: Wed, 9 Mar 2011 16:18:02 -0800 Subject: bq20z75: Fix issues with present and suspend There are a few issues found around the battery not being present. If the battery isn't present, then a few undesirable things happen. The first was excessive reporting of failed properties. This was fixed by instead returning ENODATA for all properties other than PRESENT if the battery isn't present. That way the callers can identify the difference between a failure and the battery not being there. The next issue was in the suspend logic. It was found that if the battery wasn't present, then it would return a failure, preventing the system from going into suspend. If there is no battery present, the io is expected to fail, so in that case, we shouldn't return the failure and just acknowledge that it was expected. I also found that when a gpio was used, i didn't maintain the internal is_present state properly. I added a set of that to fix that. Lastly, the code to see io's fail and figure out that the battery isn't present when not using a gpio had a problem. In that code, it looked for the read to fail and if it did, then handled it. The problem is that in function to get the property, it first writes a value and that write can fail, causing the code to never reach the logic after the read. Fix is to move the logic till after the write. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/bq20z75.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-) diff --git a/drivers/power/bq20z75.c b/drivers/power/bq20z75.c index 8018e8cc7a74..5615c92bef66 100644 --- a/drivers/power/bq20z75.c +++ b/drivers/power/bq20z75.c @@ -171,7 +171,7 @@ static int bq20z75_read_word_data(struct i2c_client *client, u8 address) } if (ret < 0) { - dev_warn(&client->dev, + dev_dbg(&client->dev, "%s: i2c read at address 0x%x failed\n", __func__, address); return ret; @@ -199,7 +199,7 @@ static int bq20z75_write_word_data(struct i2c_client *client, u8 address, } if (ret < 0) { - dev_warn(&client->dev, + dev_dbg(&client->dev, "%s: i2c write to address 0x%x failed\n", __func__, address); return ret; @@ -223,6 +223,7 @@ static int bq20z75_get_battery_presence_and_health( val->intval = 1; else val->intval = 0; + bq20z75_device->is_present = val->intval; return ret; } @@ -232,18 +233,17 @@ static int bq20z75_get_battery_presence_and_health( ret = bq20z75_write_word_data(client, bq20z75_data[REG_MANUFACTURER_DATA].addr, MANUFACTURER_ACCESS_STATUS); - if (ret < 0) - return ret; - - - ret = bq20z75_read_word_data(client, - bq20z75_data[REG_MANUFACTURER_DATA].addr); if (ret < 0) { if (psp == POWER_SUPPLY_PROP_PRESENT) val->intval = 0; /* battery removed */ return ret; } + ret = bq20z75_read_word_data(client, + bq20z75_data[REG_MANUFACTURER_DATA].addr); + if (ret < 0) + return ret; + if (ret < bq20z75_data[REG_MANUFACTURER_DATA].min_value || ret > bq20z75_data[REG_MANUFACTURER_DATA].max_value) { val->intval = 0; @@ -455,6 +455,8 @@ static int bq20z75_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_PRESENT: case POWER_SUPPLY_PROP_HEALTH: ret = bq20z75_get_battery_presence_and_health(client, psp, val); + if (psp == POWER_SUPPLY_PROP_PRESENT) + return 0; break; case POWER_SUPPLY_PROP_TECHNOLOGY: @@ -516,9 +518,16 @@ done: } dev_dbg(&client->dev, - "%s: property = %d, value = %d\n", __func__, psp, val->intval); + "%s: property = %d, value = %x\n", __func__, psp, val->intval); + + if (ret && bq20z75_device->is_present) + return ret; + + /* battery not present, so return NODATA for properties */ + if (ret) + return -ENODATA; - return ret; + return 0; } static irqreturn_t bq20z75_irq(int irq, void *devid) @@ -643,13 +652,14 @@ static int __devexit bq20z75_remove(struct i2c_client *client) static int bq20z75_suspend(struct i2c_client *client, pm_message_t state) { + struct bq20z75_info *bq20z75_device = i2c_get_clientdata(client); s32 ret; /* write to manufacturer access with sleep command */ ret = bq20z75_write_word_data(client, bq20z75_data[REG_MANUFACTURER_DATA].addr, MANUFACTURER_ACCESS_SLEEP); - if (ret < 0) + if (bq20z75_device->is_present && ret < 0) return ret; return 0; -- cgit v1.2.3 From 909a78b320b31ca9709d7ea5f602ec1bd2015192 Mon Sep 17 00:00:00 2001 From: Benson Leung <bleung@chromium.org> Date: Sun, 27 Feb 2011 17:41:48 -0800 Subject: bq20z75: Fix time and temp units MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Corrected temperature and time to empty/full conversions. Temperature is in 0.1°C, time is in seconds. Corrected units in comment. "Convert to µWh." Signed-off-by: Benson Leung <bleung@chromium.org> Acked-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> --- drivers/power/bq20z75.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/power/bq20z75.c b/drivers/power/bq20z75.c index 5615c92bef66..506585e31a5b 100644 --- a/drivers/power/bq20z75.c +++ b/drivers/power/bq20z75.c @@ -318,12 +318,15 @@ static void bq20z75_unit_adjustment(struct i2c_client *client, { #define BASE_UNIT_CONVERSION 1000 #define BATTERY_MODE_CAP_MULT_WATT (10 * BASE_UNIT_CONVERSION) -#define TIME_UNIT_CONVERSION 600 -#define TEMP_KELVIN_TO_CELCIUS 2731 +#define TIME_UNIT_CONVERSION 60 +#define TEMP_KELVIN_TO_CELSIUS 2731 switch (psp) { case POWER_SUPPLY_PROP_ENERGY_NOW: case POWER_SUPPLY_PROP_ENERGY_FULL: case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: + /* bq20z75 provides energy in units of 10mWh. + * Convert to µWh + */ val->intval *= BATTERY_MODE_CAP_MULT_WATT; break; @@ -337,14 +340,17 @@ static void bq20z75_unit_adjustment(struct i2c_client *client, break; case POWER_SUPPLY_PROP_TEMP: - /* bq20z75 provides battery tempreture in 0.1°K - * so convert it to 0.1°C */ - val->intval -= TEMP_KELVIN_TO_CELCIUS; - val->intval *= 10; + /* bq20z75 provides battery temperature in 0.1K + * so convert it to 0.1°C + */ + val->intval -= TEMP_KELVIN_TO_CELSIUS; break; case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG: + /* bq20z75 provides time to empty and time to full in minutes. + * Convert to seconds + */ val->intval *= TIME_UNIT_CONVERSION; break; -- cgit v1.2.3 From 688f869ce3bdc892daa993534dc6df18c95df931 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Wed, 16 Mar 2011 17:16:31 -0400 Subject: ext4: Initialize fsync transaction ids in ext4_new_inode() When allocating a new inode, we need to make sure i_sync_tid and i_datasync_tid are initialized. Otherwise, one or both of these two values could be left initialized to zero, which could potentially result in BUG_ON in jbd2_journal_commit_transaction. (This could happen by having journal->commit_request getting set to zero, which could wake up the kjournald process even though there is no running transaction, which then causes a BUG_ON via the J_ASSERT(j_ruinning_transaction != NULL) statement. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/ialloc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 2fd3b0e41787..a679a482c986 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -1054,6 +1054,11 @@ got: } } + if (ext4_handle_valid(handle)) { + ei->i_sync_tid = handle->h_transaction->t_tid; + ei->i_datasync_tid = handle->h_transaction->t_tid; + } + err = ext4_mark_inode_dirty(handle, inode); if (err) { ext4_std_error(sb, err); -- cgit v1.2.3 From f0ff1357ce391265edbf844792da7da9a694f4bd Mon Sep 17 00:00:00 2001 From: Stephen Rothwell <sfr@canb.auug.org.au> Date: Thu, 17 Mar 2011 15:02:51 +0100 Subject: drbd: need include for bitops functions declarations Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/block/drbd/drbd_bitmap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index b62dd5f26c5d..f0ae63d2df65 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -28,6 +28,9 @@ #include <linux/drbd.h> #include <linux/slab.h> #include <asm/kmap_types.h> + +#include <asm-generic/bitops/le.h> + #include "drbd_int.h" -- cgit v1.2.3 From 36133869c4b5b70e6acf6ff7ce25df526a6d5cae Mon Sep 17 00:00:00 2001 From: Aaro Koskinen <aaro.koskinen@nokia.com> Date: Fri, 18 Mar 2011 16:53:19 -0700 Subject: arm: mach-omap2: devices: fix omap3_l3_init() return value Fix the return value for the successful case. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> --- arch/arm/mach-omap2/devices.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c index 0d2d6a9c303c..d478f53f9084 100644 --- a/arch/arm/mach-omap2/devices.c +++ b/arch/arm/mach-omap2/devices.c @@ -65,7 +65,7 @@ static int __init omap3_l3_init(void) WARN(IS_ERR(od), "could not build omap_device for %s\n", oh_name); - return PTR_ERR(od); + return IS_ERR(od) ? PTR_ERR(od) : 0; } postcore_initcall(omap3_l3_init); -- cgit v1.2.3 From 18a81019b851dae83f7df3e72064de706788ff25 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen <aaro.koskinen@nokia.com> Date: Fri, 18 Mar 2011 16:53:20 -0700 Subject: arm: mach-omap2: omap_l3_smx: fix irq handler setup The handler function may be called from the point it is registered. Since the handler inspects IRQ numbers, we must set them up before registration. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> --- arch/arm/mach-omap2/omap_l3_smx.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c index 265bff3acb9e..5f2da7565b68 100644 --- a/arch/arm/mach-omap2/omap_l3_smx.c +++ b/arch/arm/mach-omap2/omap_l3_smx.c @@ -226,7 +226,6 @@ static int __init omap3_l3_probe(struct platform_device *pdev) struct omap3_l3 *l3; struct resource *res; int ret; - int irq; l3 = kzalloc(sizeof(*l3), GFP_KERNEL); if (!l3) { @@ -249,18 +248,17 @@ static int __init omap3_l3_probe(struct platform_device *pdev) goto err2; } - irq = platform_get_irq(pdev, 0); - ret = request_irq(irq, omap3_l3_app_irq, + l3->debug_irq = platform_get_irq(pdev, 0); + ret = request_irq(l3->debug_irq, omap3_l3_app_irq, IRQF_DISABLED | IRQF_TRIGGER_RISING, "l3-debug-irq", l3); if (ret) { dev_err(&pdev->dev, "couldn't request debug irq\n"); goto err3; } - l3->debug_irq = irq; - irq = platform_get_irq(pdev, 1); - ret = request_irq(irq, omap3_l3_app_irq, + l3->app_irq = platform_get_irq(pdev, 1); + ret = request_irq(l3->app_irq, omap3_l3_app_irq, IRQF_DISABLED | IRQF_TRIGGER_RISING, "l3-app-irq", l3); @@ -269,7 +267,6 @@ static int __init omap3_l3_probe(struct platform_device *pdev) goto err4; } - l3->app_irq = irq; goto err0; err4: -- cgit v1.2.3 From 8b8e2ef328c3378c74fb4347f66df8e58feeaf46 Mon Sep 17 00:00:00 2001 From: David Anders <x0132446@ti.com> Date: Fri, 18 Mar 2011 16:53:20 -0700 Subject: OMAP4: PandaBoard: remove unused power regulators the pandaboard does not use the VUSIM or VAUX1 power regulators on the TWL6030 and are left floating. if the VUSIM and VAUX1 power regulators are initilized, noise on the unloaded regulators generates an overcurrent interrupt causing the system to power down. this patch removes the initialization of the unused power regulators of VUSIM and VAUX1. Signed-off-by: David Anders <x0132446@ti.com> Acked-by: Andy Green <andy.green@linaro.org> Acked-by: Anand Gadiyar <gadiyar@ti.com> Tested-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> --- arch/arm/mach-omap2/board-omap4panda.c | 28 ---------------------------- 1 file changed, 28 deletions(-) diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c index 1dd4401e6466..80b8860bc595 100644 --- a/arch/arm/mach-omap2/board-omap4panda.c +++ b/arch/arm/mach-omap2/board-omap4panda.c @@ -280,19 +280,6 @@ static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers) return 0; } -static struct regulator_init_data omap4_panda_vaux1 = { - .constraints = { - .min_uV = 1000000, - .max_uV = 3000000, - .apply_uV = true, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE - | REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, -}; - static struct regulator_init_data omap4_panda_vaux2 = { .constraints = { .min_uV = 1200000, @@ -348,19 +335,6 @@ static struct regulator_init_data omap4_panda_vpp = { }, }; -static struct regulator_init_data omap4_panda_vusim = { - .constraints = { - .min_uV = 1200000, - .max_uV = 2900000, - .apply_uV = true, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE - | REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, -}; - static struct regulator_init_data omap4_panda_vana = { .constraints = { .min_uV = 2100000, @@ -413,12 +387,10 @@ static struct twl4030_platform_data omap4_panda_twldata = { /* Regulators */ .vmmc = &omap4_panda_vmmc, .vpp = &omap4_panda_vpp, - .vusim = &omap4_panda_vusim, .vana = &omap4_panda_vana, .vcxio = &omap4_panda_vcxio, .vdac = &omap4_panda_vdac, .vusb = &omap4_panda_vusb, - .vaux1 = &omap4_panda_vaux1, .vaux2 = &omap4_panda_vaux2, .vaux3 = &omap4_panda_vaux3, .usb = &omap4_usbphy_data, -- cgit v1.2.3 From 77aded2f523c6540f71b1f549373dd8046329a6b Mon Sep 17 00:00:00 2001 From: Balaji T K <balajitk@ti.com> Date: Fri, 18 Mar 2011 16:53:20 -0700 Subject: ARM: OMAP2+: Fix warnings for GPMC interrupt Commit db97eb7dfe13f6c04f0a0e77c32e2691f563ab8b (omap: gpmc: enable irq mode in gpmc) enabled interrupts for GPMC (General Purpose Memory Controller). However, looks like this patch only works on omap3. Fix the issues to avoid warnings on omap4 during the boot. GPMC: number of chip select is 8, CS0 to CS7. One less IRQ allocated throws below warning at boot: [ 0.429290] Trying to install type control for IRQ409 [ 0.429290] Trying to set irq flags for IRQ409 Resolve following warning messages in boot when irq chip is not set: [ 0.429229] Trying to install interrupt handler for IRQ402 [ 0.429229] Trying to install interrupt handler for IRQ403 [ 0.429229] Trying to install interrupt handler for IRQ404 [ 0.429260] Trying to install interrupt handler for IRQ405 [ 0.429260] Trying to install interrupt handler for IRQ406 [ 0.429260] Trying to install interrupt handler for IRQ407 [ 0.429290] Trying to install interrupt handler for IRQ408 Resolve following warning in OMAP4: [ 0.429290] gpmc: irq-20 could not claim: err -22 Signed-off-by: Balaji T K <balajitk@ti.com> [tony@atomide.com: combined patches into one, updated comments] Signed-off-by: Tony Lindgren <tony@atomide.com> --- arch/arm/mach-omap2/gpmc.c | 13 ++++++++----- arch/arm/plat-omap/include/plat/irqs.h | 2 +- 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 674174365f78..493505c3b2f5 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -693,6 +693,7 @@ static int __init gpmc_init(void) { u32 l, irq; int cs, ret = -EINVAL; + int gpmc_irq; char *ck = NULL; if (cpu_is_omap24xx()) { @@ -701,12 +702,15 @@ static int __init gpmc_init(void) l = OMAP2420_GPMC_BASE; else l = OMAP34XX_GPMC_BASE; + gpmc_irq = INT_34XX_GPMC_IRQ; } else if (cpu_is_omap34xx()) { ck = "gpmc_fck"; l = OMAP34XX_GPMC_BASE; + gpmc_irq = INT_34XX_GPMC_IRQ; } else if (cpu_is_omap44xx()) { ck = "gpmc_ck"; l = OMAP44XX_GPMC_BASE; + gpmc_irq = OMAP44XX_IRQ_GPMC; } if (WARN_ON(!ck)) @@ -739,16 +743,17 @@ static int __init gpmc_init(void) /* initalize the irq_chained */ irq = OMAP_GPMC_IRQ_BASE; for (cs = 0; cs < GPMC_CS_NUM; cs++) { - set_irq_handler(irq, handle_simple_irq); + set_irq_chip_and_handler(irq, &dummy_irq_chip, + handle_simple_irq); set_irq_flags(irq, IRQF_VALID); irq++; } - ret = request_irq(INT_34XX_GPMC_IRQ, + ret = request_irq(gpmc_irq, gpmc_handle_irq, IRQF_SHARED, "gpmc", gpmc_base); if (ret) pr_err("gpmc: irq-%d could not claim: err %d\n", - INT_34XX_GPMC_IRQ, ret); + gpmc_irq, ret); return ret; } postcore_initcall(gpmc_init); @@ -757,8 +762,6 @@ static irqreturn_t gpmc_handle_irq(int irq, void *dev) { u8 cs; - if (irq != INT_34XX_GPMC_IRQ) - return IRQ_HANDLED; /* check cs to invoke the irq */ cs = ((gpmc_read_reg(GPMC_PREFETCH_CONFIG1)) >> CS_NUM_SHIFT) & 0x7; if (OMAP_GPMC_IRQ_BASE+cs <= OMAP_GPMC_IRQ_END) diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h index d77928370463..5a25098ea7ea 100644 --- a/arch/arm/plat-omap/include/plat/irqs.h +++ b/arch/arm/plat-omap/include/plat/irqs.h @@ -416,7 +416,7 @@ /* GPMC related */ #define OMAP_GPMC_IRQ_BASE (TWL_IRQ_END) -#define OMAP_GPMC_NR_IRQS 7 +#define OMAP_GPMC_NR_IRQS 8 #define OMAP_GPMC_IRQ_END (OMAP_GPMC_IRQ_BASE + OMAP_GPMC_NR_IRQS) -- cgit v1.2.3 From 4fa8eebb045a6d798011f3935a38dd29de30e6c9 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen <ohad@wizery.com> Date: Fri, 18 Mar 2011 16:53:21 -0700 Subject: hwspinlock: depend on OMAP4 Currently only OMAP4 supports hwspinlocks, so don't bother asking anyone else. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Tony Lindgren <tony@atomide.com> --- drivers/hwspinlock/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hwspinlock/Kconfig b/drivers/hwspinlock/Kconfig index eb4af28f8567..1f29bab6b3e5 100644 --- a/drivers/hwspinlock/Kconfig +++ b/drivers/hwspinlock/Kconfig @@ -4,6 +4,7 @@ config HWSPINLOCK tristate "Generic Hardware Spinlock framework" + depends on ARCH_OMAP4 help Say y here to support the generic hardware spinlock framework. You only need to enable this if you have hardware spinlock module -- cgit v1.2.3 From fc66c5210ec2539e800e87d7b3a985323c7be96e Mon Sep 17 00:00:00 2001 From: Stephane Eranian <eranian@google.com> Date: Sat, 19 Mar 2011 18:20:05 +0100 Subject: perf, x86: Fix Intel fixed counters base initialization The following patch solves the problems introduced by Robert's commit 41bf498 and reported by Arun Sharma. This commit gets rid of the base + index notation for reading and writing PMU msrs. The problem is that for fixed counters, the new calculation for the base did not take into account the fixed counter indexes, thus all fixed counters were read/written from fixed counter 0. Although all fixed counters share the same config MSR, they each have their own counter register. Without: $ task -e unhalted_core_cycles -e instructions_retired -e baclears noploop 1 noploop for 1 seconds 242202299 unhalted_core_cycles (0.00% scaling, ena=1000790892, run=1000790892) 2389685946 instructions_retired (0.00% scaling, ena=1000790892, run=1000790892) 49473 baclears (0.00% scaling, ena=1000790892, run=1000790892) With: $ task -e unhalted_core_cycles -e instructions_retired -e baclears noploop 1 noploop for 1 seconds 2392703238 unhalted_core_cycles (0.00% scaling, ena=1000840809, run=1000840809) 2389793744 instructions_retired (0.00% scaling, ena=1000840809, run=1000840809) 47863 baclears (0.00% scaling, ena=1000840809, run=1000840809) Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: ming.m.lin@intel.com Cc: robert.richter@amd.com Cc: asharma@fb.com Cc: perfmon2-devel@lists.sf.net LKML-Reference: <20110319172005.GB4978@quad> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/cpu/perf_event.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index e8dbe179587f..ec46eea0c4ed 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -912,7 +912,7 @@ static inline void x86_assign_hw_event(struct perf_event *event, hwc->event_base = 0; } else if (hwc->idx >= X86_PMC_IDX_FIXED) { hwc->config_base = MSR_ARCH_PERFMON_FIXED_CTR_CTRL; - hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0; + hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0 + (hwc->idx - X86_PMC_IDX_FIXED); } else { hwc->config_base = x86_pmu_config_addr(hwc->idx); hwc->event_base = x86_pmu_event_addr(hwc->idx); -- cgit v1.2.3 From 16addf954d3954a72fd56abc02ffcba3c18529a1 Mon Sep 17 00:00:00 2001 From: Randy Dunlap <randy.dunlap@oracle.com> Date: Fri, 18 Mar 2011 09:34:53 -0700 Subject: sched: Fix yield_to kernel-doc Add missing function parameters for yield_to(): Warning(kernel/sched.c:5470): No description found for parameter 'p' Warning(kernel/sched.c:5470): No description found for parameter 'preempt' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20110318093453.8f7489a4.randy.dunlap@oracle.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- kernel/sched.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/sched.c b/kernel/sched.c index 58d66ea7d200..052120d67706 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5467,6 +5467,8 @@ EXPORT_SYMBOL(yield); * yield_to - yield the current processor to another thread in * your thread group, or accelerate that thread toward the * processor it's on. + * @p: target task + * @preempt: whether task preemption is allowed or not * * It's the caller's job to ensure that the target task struct * can't go away on us before we can do any checks. -- cgit v1.2.3 From b74ad5ae14def5e81ad0be3dddb96e485b861b1b Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu, 17 Mar 2011 22:33:33 +0000 Subject: drm: Fix use-after-free in drm_gem_vm_close() As we may release the last reference, we need to store the device in a local variable in order to unlock afterwards. [ 60.140768] BUG: unable to handle kernel paging request at 6b6b6b9f [ 60.140973] IP: [<c1536d11>] __mutex_unlock_slowpath+0x5a/0x111 [ 60.141014] *pdpt = 0000000024a54001 *pde = 0000000000000000 [ 60.141014] Oops: 0002 [#1] PREEMPT SMP [ 60.141014] last sysfs file: /sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0/voltage_now [ 60.141014] Modules linked in: uvcvideo ath9k pegasus ath9k_common ath9k_hw hid_egalax ath3k joydev asus_laptop sparse_keymap battery input_polldev [ 60.141014] [ 60.141014] Pid: 771, comm: meego-ux-daemon Not tainted 2.6.37.2-7.1 #1 EXOPC EXOPG06411/EXOPG06411 [ 60.141014] EIP: 0060:[<c1536d11>] EFLAGS: 00010046 CPU: 0 [ 60.141014] EIP is at __mutex_unlock_slowpath+0x5a/0x111 [ 60.141014] EAX: 00000100 EBX: 6b6b6b9b ECX: e9b4a1b0 EDX: e4a4e580 [ 60.141014] ESI: db162558 EDI: 00000246 EBP: e480be50 ESP: e480be44 [ 60.141014] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 60.141014] Process meego-ux-daemon (pid: 771, ti=e480a000 task=e9b4a1b0 task.ti=e480a000) [ 60.141014] Stack: [ 60.141014] e4a4e580 db162558 f5a2f838 e480be58 c1536dd0 e480be68 c125ab1b db162558 [ 60.141014] db1624e0 e480be78 c10ba071 db162558 f760241c e480be94 c10bb0bc 000155fe [ 60.141014] f760241c f5a2f838 f5a2f8c8 00000000 e480bea4 c1037c24 00000000 f5a2f838 [ 60.141014] Call Trace: [ 60.141014] [<c1536dd0>] ? mutex_unlock+0x8/0xa [ 60.141014] [<c125ab1b>] ? drm_gem_vm_close+0x39/0x3d [ 60.141014] [<c10ba071>] ? remove_vma+0x2d/0x58 [ 60.141014] [<c10bb0bc>] ? exit_mmap+0x126/0x13f [ 60.141014] [<c1037c24>] ? mmput+0x37/0x9a [ 60.141014] [<c10d450d>] ? exec_mmap+0x178/0x19c [ 60.141014] [<c1537f85>] ? _raw_spin_unlock+0x1d/0x36 [ 60.141014] [<c10d4eb0>] ? flush_old_exec+0x42/0x75 [ 60.141014] [<c1104442>] ? load_elf_binary+0x32a/0x922 [ 60.141014] [<c10d3f76>] ? search_binary_handler+0x200/0x2ea [ 60.141014] [<c10d3ecf>] ? search_binary_handler+0x159/0x2ea [ 60.141014] [<c1104118>] ? load_elf_binary+0x0/0x922 [ 60.141014] [<c10d56b2>] ? do_execve+0x1ff/0x2e6 [ 60.141014] [<c100970e>] ? sys_execve+0x2d/0x55 [ 60.141014] [<c1002a5a>] ? ptregs_execve+0x12/0x18 [ 60.141014] [<c10029dc>] ? sysenter_do_call+0x12/0x3c [ 60.141014] [<c1530000>] ? init_centaur+0x9c/0x1ba [ 60.141014] Code: c1 00 75 0f ba 38 01 00 00 b8 8c 3a 6c c1 e8 cc 2e b0 ff 9c 58 8d 74 26 00 89 c7 fa 90 8d 74 26 00 e8 d2 b4 b2 ff b8 00 01 00 00 <f0> 66 0f c1 43 04 38 e0 74 07 f3 90 8a 43 04 eb f5 83 3d 64 ef [ 60.141014] EIP: [<c1536d11>] __mutex_unlock_slowpath+0x5a/0x111 SS:ESP 0068:e480be44 [ 60.141014] CR2: 000000006b6b6b9f Reported-by: Rusty Lynch <rusty.lynch@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> --- drivers/gpu/drm/drm_gem.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 57ce27c9a747..74e4ff578017 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -499,11 +499,12 @@ EXPORT_SYMBOL(drm_gem_vm_open); void drm_gem_vm_close(struct vm_area_struct *vma) { struct drm_gem_object *obj = vma->vm_private_data; + struct drm_device *dev = obj->dev; - mutex_lock(&obj->dev->struct_mutex); + mutex_lock(&dev->struct_mutex); drm_vm_close_locked(vma); drm_gem_object_unreference(obj); - mutex_unlock(&obj->dev->struct_mutex); + mutex_unlock(&dev->struct_mutex); } EXPORT_SYMBOL(drm_gem_vm_close); -- cgit v1.2.3 From 19b01b5fbf0b78930b3b06ee6080539c17b5d1fd Mon Sep 17 00:00:00 2001 From: Ilija Hadzic <ihadzic@research.bell-labs.com> Date: Fri, 18 Mar 2011 16:58:04 -0500 Subject: drm/kernel: vblank wait on crtc > 1 Below is a patch against drm-next branch of 2.6.38-rc8+ kernel that adds the capability to wait on vblank events for CRTCs that are greater than 1 and thus cannot be represented with primary/secondary flags in the legacy interface. It was discussed on the dri-devel list in these two threads: http://lists.freedesktop.org/archives/dri-devel/2011-March/009009.html http://lists.freedesktop.org/archives/dri-devel/2011-March/009025.html This patch extends the interface to drm_wait_vblank ioctl so that crtc>1 can be represented. It also adds a new capability to drm_getcap ioctl so that the user space can check whether the new interface to drm_wait_vblank is supported (and fall back to the legacy interface if not) Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com> Reviewed-by: Mario Kleiner <mario.kleiner at tuebingen.mpg.de> Acked-by: Mario Kleiner <mario.kleiner at tuebingen.mpg.de> Reviewed-by: Alex Deucher <alexdeucher@gmail.com> Tested-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com> --- drivers/gpu/drm/drm_ioctl.c | 3 +++ drivers/gpu/drm/drm_irq.c | 15 ++++++++++----- include/drm/drm.h | 3 +++ 3 files changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 7f6912a16761..3617b4c4bb57 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -280,6 +280,9 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv) if (dev->driver->dumb_create) req->value = 1; break; + case DRM_CAP_HIGH_CRTC: + req->value = 1; + break; default: return -EINVAL; } diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index a34ef97d3c81..741457bd1c46 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -1125,7 +1125,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data, { union drm_wait_vblank *vblwait = data; int ret = 0; - unsigned int flags, seq, crtc; + unsigned int flags, seq, crtc, high_crtc; if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled)) return -EINVAL; @@ -1134,16 +1134,21 @@ int drm_wait_vblank(struct drm_device *dev, void *data, return -EINVAL; if (vblwait->request.type & - ~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK)) { + ~(_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK | + _DRM_VBLANK_HIGH_CRTC_MASK)) { DRM_ERROR("Unsupported type value 0x%x, supported mask 0x%x\n", vblwait->request.type, - (_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK)); + (_DRM_VBLANK_TYPES_MASK | _DRM_VBLANK_FLAGS_MASK | + _DRM_VBLANK_HIGH_CRTC_MASK)); return -EINVAL; } flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK; - crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0; - + high_crtc = (vblwait->request.type & _DRM_VBLANK_HIGH_CRTC_MASK); + if (high_crtc) + crtc = high_crtc >> _DRM_VBLANK_HIGH_CRTC_SHIFT; + else + crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0; if (crtc >= dev->num_crtcs) return -EINVAL; diff --git a/include/drm/drm.h b/include/drm/drm.h index 9ac431396176..99cd07433fab 100644 --- a/include/drm/drm.h +++ b/include/drm/drm.h @@ -469,6 +469,8 @@ enum drm_vblank_seq_type { _DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ _DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking, unsupported */ }; +#define _DRM_VBLANK_HIGH_CRTC_SHIFT 16 +#define _DRM_VBLANK_HIGH_CRTC_MASK 0x001F0000 #define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE) #define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \ @@ -753,6 +755,7 @@ struct drm_event_vblank { }; #define DRM_CAP_DUMB_BUFFER 0x1 +#define DRM_CAP_HIGH_CRTC 0x2 /* typedef area */ #ifndef __KERNEL__ -- cgit v1.2.3 From fb3b06c8a1fd1a80298f13b738ab38ef8c73baff Mon Sep 17 00:00:00 2001 From: Dave Airlie <airlied@redhat.com> Date: Tue, 8 Feb 2011 13:55:21 +1000 Subject: drm: check for modesetting on modeset ioctls Noticed this while working on some other things, helps if we check for modeset enabled on modesetting ioctls. Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> --- drivers/gpu/drm/drm_crtc.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 4c95b5fd9df3..799e1490cf24 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1073,6 +1073,9 @@ int drm_mode_getresources(struct drm_device *dev, void *data, uint32_t __user *encoder_id; struct drm_mode_group *mode_group; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); /* @@ -1244,6 +1247,9 @@ int drm_mode_getcrtc(struct drm_device *dev, struct drm_mode_object *obj; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, crtc_resp->crtc_id, @@ -1312,6 +1318,9 @@ int drm_mode_getconnector(struct drm_device *dev, void *data, uint64_t __user *prop_values; uint32_t __user *encoder_ptr; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); @@ -1431,6 +1440,9 @@ int drm_mode_getencoder(struct drm_device *dev, void *data, struct drm_encoder *encoder; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, enc_resp->encoder_id, DRM_MODE_OBJECT_ENCODER); @@ -1486,6 +1498,9 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, int ret = 0; int i; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, crtc_req->crtc_id, DRM_MODE_OBJECT_CRTC); @@ -1603,6 +1618,9 @@ int drm_mode_cursor_ioctl(struct drm_device *dev, struct drm_crtc *crtc; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + if (!req->flags) { DRM_ERROR("no operation set\n"); return -EINVAL; @@ -1667,6 +1685,9 @@ int drm_mode_addfb(struct drm_device *dev, struct drm_framebuffer *fb; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + if ((config->min_width > r->width) || (r->width > config->max_width)) { DRM_ERROR("mode new framebuffer width not within limits\n"); return -EINVAL; @@ -1724,6 +1745,9 @@ int drm_mode_rmfb(struct drm_device *dev, int ret = 0; int found = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB); /* TODO check that we realy get a framebuffer back. */ @@ -1780,6 +1804,9 @@ int drm_mode_getfb(struct drm_device *dev, struct drm_framebuffer *fb; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); if (!obj) { @@ -1813,6 +1840,9 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev, int num_clips; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); if (!obj) { @@ -1996,6 +2026,9 @@ int drm_mode_attachmode_ioctl(struct drm_device *dev, struct drm_mode_modeinfo *umode = &mode_cmd->mode; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); @@ -2042,6 +2075,9 @@ int drm_mode_detachmode_ioctl(struct drm_device *dev, struct drm_mode_modeinfo *umode = &mode_cmd->mode; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); @@ -2211,6 +2247,9 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev, uint64_t __user *values_ptr; uint32_t __user *blob_length_ptr; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); if (!obj) { @@ -2333,6 +2372,9 @@ int drm_mode_getblob_ioctl(struct drm_device *dev, int ret = 0; void *blob_ptr; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); if (!obj) { @@ -2393,6 +2435,9 @@ int drm_mode_connector_property_set_ioctl(struct drm_device *dev, int ret = -EINVAL; int i; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR); @@ -2509,6 +2554,9 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev, int size; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) { @@ -2560,6 +2608,9 @@ int drm_mode_gamma_get_ioctl(struct drm_device *dev, int size; int ret = 0; + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + mutex_lock(&dev->mode_config.mutex); obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) { -- cgit v1.2.3 From c2cc7028e41c76e44b6e247c4b495c7523b23c87 Mon Sep 17 00:00:00 2001 From: Amir Goldstein <amir73il@gmail.com> Date: Sun, 20 Mar 2011 20:08:48 -0400 Subject: jbd2: add the b_cow_tid field to journal_head struct The b_cow_tid field will be used by the ext4 snapshots code to store the transaction id when the buffer was last cowed. Merging this patch to mainline will allow users to test ext4 snapshots as a standalone module, without the need to patch and install a development kernel. On 64bit machines this field uses fills in a padding "hole" and does not increase the size of the struct. On a 32bit machine this patch increases the size of the struct from 60 to 64 bytes. Signed-off-by: Amir Goldstein <amir73il@users.sf.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- include/linux/journal-head.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h index 525aac3c97df..44e95d0a721f 100644 --- a/include/linux/journal-head.h +++ b/include/linux/journal-head.h @@ -40,6 +40,13 @@ struct journal_head { */ unsigned b_modified; + /* + * This feild tracks the last transaction id in which this buffer + * has been cowed + * [jbd_lock_bh_state()] + */ + unsigned b_cow_tid; + /* * Copy of the buffer data frozen for writing to the log. * [jbd_lock_bh_state()] -- cgit v1.2.3 From 93737456d68ddcb86232f669b83da673dd12e351 Mon Sep 17 00:00:00 2001 From: Amir Goldstein <amir73il@gmail.com> Date: Sun, 20 Mar 2011 21:13:43 -0400 Subject: jbd2: add COW fields to struct jbd2_journal_handle Add fields needed for the copy-on-write ext4 development work. The h_cowing flag is used by ext4 snapshots code to mark the task in COWING state. The h_XXX_credits fields are used to track buffer credits usage (accounted by COW and non-COW operations). The h_cow_XXX fields are used as per task debugging counters. Merging this commit into mainline will allow users to test ext4 snapshots as a standalone module, without the need to patch and install a development kernel. Signed-off-by: Amir Goldstein <amir73il@users.sf.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- include/linux/jbd2.h | 28 +++++++++++++++++++++++++--- 1 file changed, 25 insertions(+), 3 deletions(-) diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 27e79c27ba08..a32dcaec04e1 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -432,13 +432,35 @@ struct jbd2_journal_handle int h_err; /* Flags [no locking] */ - unsigned int h_sync: 1; /* sync-on-close */ - unsigned int h_jdata: 1; /* force data journaling */ - unsigned int h_aborted: 1; /* fatal error on handle */ + unsigned int h_sync:1; /* sync-on-close */ + unsigned int h_jdata:1; /* force data journaling */ + unsigned int h_aborted:1; /* fatal error on handle */ + unsigned int h_cowing:1; /* COWing block to snapshot */ + + /* Number of buffers requested by user: + * (before adding the COW credits factor) */ + unsigned int h_base_credits:14; + + /* Number of buffers the user is allowed to dirty: + * (counts only buffers dirtied when !h_cowing) */ + unsigned int h_user_credits:14; + #ifdef CONFIG_DEBUG_LOCK_ALLOC struct lockdep_map h_lockdep_map; #endif + +#ifdef CONFIG_JBD2_DEBUG + /* COW debugging counters: */ + unsigned int h_cow_moved; /* blocks moved to snapshot */ + unsigned int h_cow_copied; /* blocks copied to snapshot */ + unsigned int h_cow_ok_jh; /* blocks already COWed during current + transaction */ + unsigned int h_cow_ok_bitmap; /* blocks not set in COW bitmap */ + unsigned int h_cow_ok_mapped;/* blocks already mapped in snapshot */ + unsigned int h_cow_bitmaps; /* COW bitmaps created */ + unsigned int h_cow_excluded; /* blocks set in exclude bitmap */ +#endif }; -- cgit v1.2.3 From ef6078930263bfcdcfe4dddb2cd85254b4cf4f5c Mon Sep 17 00:00:00 2001 From: Amir Goldstein <amir73il@gmail.com> Date: Sun, 20 Mar 2011 21:18:44 -0400 Subject: ext4: handle errors in ext4_rename Checking return code from ext4_journal_get_write_access() is important with snapshots, because this function invokes COW, so may return new errors, such as ENOSPC. We move the call to ext4_journal_get_write_access earlier in the function, to simplify error handling in the case that this function returns returns an error. Signed-off-by: Amir Goldstein <amir73il@users.sf.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/namei.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 5485390d32c5..ad87584aa8d2 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2409,6 +2409,10 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, if (!new_inode && new_dir != old_dir && EXT4_DIR_LINK_MAX(new_dir)) goto end_rename; + BUFFER_TRACE(dir_bh, "get_write_access"); + retval = ext4_journal_get_write_access(handle, dir_bh); + if (retval) + goto end_rename; } if (!new_bh) { retval = ext4_add_entry(handle, new_dentry, old_inode); @@ -2416,7 +2420,9 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, goto end_rename; } else { BUFFER_TRACE(new_bh, "get write access"); - ext4_journal_get_write_access(handle, new_bh); + retval = ext4_journal_get_write_access(handle, new_bh); + if (retval) + goto end_rename; new_de->inode = cpu_to_le32(old_inode->i_ino); if (EXT4_HAS_INCOMPAT_FEATURE(new_dir->i_sb, EXT4_FEATURE_INCOMPAT_FILETYPE)) @@ -2477,8 +2483,6 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, old_dir->i_ctime = old_dir->i_mtime = ext4_current_time(old_dir); ext4_update_dx_flag(old_dir); if (dir_bh) { - BUFFER_TRACE(dir_bh, "get_write_access"); - ext4_journal_get_write_access(handle, dir_bh); PARENT_INO(dir_bh->b_data, new_dir->i_sb->s_blocksize) = cpu_to_le32(new_dir->i_ino); BUFFER_TRACE(dir_bh, "call ext4_handle_dirty_metadata"); -- cgit v1.2.3 From 537a03103c67c4688b1e8e6671ad119aec5e2efb Mon Sep 17 00:00:00 2001 From: Amir Goldstein <amir73il@gmail.com> Date: Sun, 20 Mar 2011 22:57:02 -0400 Subject: ext4: unify the ext4_handle_release_buffer() api There are two wrapper functions which do exactly the same thing: ext4_journal_release_buffer(), and ext4_handle_release_buffer(). In addition, ext4_xattr_block_set() calls jbd2_journal_release_buffer() directly. Unify all of the code to use ext4_handle_release_buffer(), and get rid of ext4_journal_release_buffer(). Signed-off-by: Amir Goldstein <amir73il@users.sf.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/ext4_jbd2.h | 7 ------- fs/ext4/resize.c | 8 ++++---- fs/ext4/xattr.c | 2 +- 3 files changed, 5 insertions(+), 12 deletions(-) diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h index d8b992e658c1..e25e99bf7ee1 100644 --- a/fs/ext4/ext4_jbd2.h +++ b/fs/ext4/ext4_jbd2.h @@ -202,13 +202,6 @@ static inline int ext4_handle_has_enough_credits(handle_t *handle, int needed) return 1; } -static inline void ext4_journal_release_buffer(handle_t *handle, - struct buffer_head *bh) -{ - if (ext4_handle_valid(handle)) - jbd2_journal_release_buffer(handle, bh); -} - static inline handle_t *ext4_journal_start(struct inode *inode, int nblocks) { return ext4_journal_start_sb(inode->i_sb, nblocks); diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 66fec4ee76fa..80bbc9c60c24 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -499,12 +499,12 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, return err; exit_inode: - /* ext4_journal_release_buffer(handle, iloc.bh); */ + /* ext4_handle_release_buffer(handle, iloc.bh); */ brelse(iloc.bh); exit_dindj: - /* ext4_journal_release_buffer(handle, dind); */ + /* ext4_handle_release_buffer(handle, dind); */ exit_sbh: - /* ext4_journal_release_buffer(handle, EXT4_SB(sb)->s_sbh); */ + /* ext4_handle_release_buffer(handle, EXT4_SB(sb)->s_sbh); */ exit_dind: brelse(dind); exit_bh: @@ -586,7 +586,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode, /* int j; for (j = 0; j < i; j++) - ext4_journal_release_buffer(handle, primary[j]); + ext4_handle_release_buffer(handle, primary[j]); */ goto exit_bh; } diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index f4c03af05d69..b545ca1c459c 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -735,7 +735,7 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode, int offset = (char *)s->here - bs->bh->b_data; unlock_buffer(bs->bh); - jbd2_journal_release_buffer(handle, bs->bh); + ext4_handle_release_buffer(handle, bs->bh); if (ce) { mb_cache_entry_release(ce); ce = NULL; -- cgit v1.2.3 From d67d1218344009970ba0deb7eb15a3984518ddd0 Mon Sep 17 00:00:00 2001 From: Amir Goldstein <amir73il@gmail.com> Date: Sun, 20 Mar 2011 22:59:02 -0400 Subject: ext4: handle errors in ext4_clear_blocks() Checking return code from ext4_journal_get_write_access() is important with snapshots, because this function invokes COW, so may return new errors, such as ENOSPC. ext4_clear_blocks() now returns < 0 for fatal errors, in which case, ext4_free_data() is aborted. Signed-off-by: Amir Goldstein <amir73il@users.sf.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 46 ++++++++++++++++++++++++++-------------------- 1 file changed, 26 insertions(+), 20 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 67e7a3caf9ed..fc8c0ce84315 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4096,6 +4096,9 @@ no_top: * * We release `count' blocks on disk, but (last - first) may be greater * than `count' because there can be holes in there. + * + * Return 0 on success, 1 on invalid block range + * and < 0 on fatal error. */ static int ext4_clear_blocks(handle_t *handle, struct inode *inode, struct buffer_head *bh, @@ -4122,25 +4125,21 @@ static int ext4_clear_blocks(handle_t *handle, struct inode *inode, if (bh) { BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata"); err = ext4_handle_dirty_metadata(handle, inode, bh); - if (unlikely(err)) { - ext4_std_error(inode->i_sb, err); - return 1; - } + if (unlikely(err)) + goto out_err; } err = ext4_mark_inode_dirty(handle, inode); - if (unlikely(err)) { - ext4_std_error(inode->i_sb, err); - return 1; - } + if (unlikely(err)) + goto out_err; err = ext4_truncate_restart_trans(handle, inode, blocks_for_truncate(inode)); - if (unlikely(err)) { - ext4_std_error(inode->i_sb, err); - return 1; - } + if (unlikely(err)) + goto out_err; if (bh) { BUFFER_TRACE(bh, "retaking write access"); - ext4_journal_get_write_access(handle, bh); + err = ext4_journal_get_write_access(handle, bh); + if (unlikely(err)) + goto out_err; } } @@ -4149,6 +4148,9 @@ static int ext4_clear_blocks(handle_t *handle, struct inode *inode, ext4_free_blocks(handle, inode, NULL, block_to_free, count, flags); return 0; +out_err: + ext4_std_error(inode->i_sb, err); + return err; } /** @@ -4182,7 +4184,7 @@ static void ext4_free_data(handle_t *handle, struct inode *inode, ext4_fsblk_t nr; /* Current block # */ __le32 *p; /* Pointer into inode/ind for current block */ - int err; + int err = 0; if (this_bh) { /* For indirect block */ BUFFER_TRACE(this_bh, "get_write_access"); @@ -4204,9 +4206,10 @@ static void ext4_free_data(handle_t *handle, struct inode *inode, } else if (nr == block_to_free + count) { count++; } else { - if (ext4_clear_blocks(handle, inode, this_bh, - block_to_free, count, - block_to_free_p, p)) + err = ext4_clear_blocks(handle, inode, this_bh, + block_to_free, count, + block_to_free_p, p); + if (err) break; block_to_free = nr; block_to_free_p = p; @@ -4215,9 +4218,12 @@ static void ext4_free_data(handle_t *handle, struct inode *inode, } } - if (count > 0) - ext4_clear_blocks(handle, inode, this_bh, block_to_free, - count, block_to_free_p, p); + if (!err && count > 0) + err = ext4_clear_blocks(handle, inode, this_bh, block_to_free, + count, block_to_free_p, p); + if (err < 0) + /* fatal error */ + return; if (this_bh) { BUFFER_TRACE(this_bh, "call ext4_handle_dirty_metadata"); -- cgit v1.2.3 From a56e69c28ad0782a99f3f196e93d57ba5a7e2324 Mon Sep 17 00:00:00 2001 From: Tao Ma <boyu.mt@taobao.com> Date: Sun, 20 Mar 2011 23:16:58 -0400 Subject: ext4: add FITRIM to compat_ioctl. FITRIM isn't added in compat_ioctl. So a 32 bit program can't be executed in a 64 bit platform. Add it in the compat_ioctl. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/ioctl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index c052c9f0f3a1..bb424de9953b 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -427,6 +427,7 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return err; } case EXT4_IOC_MOVE_EXT: + case FITRIM: break; default: return -ENOIOCTLCMD; -- cgit v1.2.3 From 8b8bae901ce23addbdcdb54fa1696fb2d049feb5 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rjw@sisk.pl> Date: Sat, 5 Mar 2011 13:21:51 +0100 Subject: PCI/ACPI: Report ASPM support to BIOS if not disabled from command line MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We need to distinguish the situation in which ASPM support is disabled from the command line or through .config from the situation in which it is disabled, because the hardware or BIOS can't handle it. In the former case we should not report ASPM support to the BIOS through ACPI _OSC, but in the latter case we should do that. Introduce pcie_aspm_support_enabled() that can be used by acpi_pci_root_add() to determine whether or not it should report ASPM support to the BIOS through _OSC. Cc: stable@kernel.org References: https://bugzilla.kernel.org/show_bug.cgi?id=29722 References: https://bugzilla.kernel.org/show_bug.cgi?id=20232 Reported-and-tested-by: Ortwin Glück <odi@odi.ch> Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Tested-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> --- drivers/acpi/pci_root.c | 2 +- drivers/pci/pcie/aspm.c | 7 +++++++ include/linux/pci.h | 7 +++---- 3 files changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 85249395623b..c7358dd68b31 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -564,7 +564,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device) /* Indicate support for various _OSC capabilities. */ if (pci_ext_cfg_avail(root->bus->self)) flags |= OSC_EXT_PCI_CONFIG_SUPPORT; - if (pcie_aspm_enabled()) + if (pcie_aspm_support_enabled()) flags |= OSC_ACTIVE_STATE_PWR_SUPPORT | OSC_CLOCK_PWR_CAPABILITY_SUPPORT; if (pci_msi_enabled()) diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 3188cd96b338..bbdb4fd85b9c 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -69,6 +69,7 @@ struct pcie_link_state { }; static int aspm_disabled, aspm_force, aspm_clear_state; +static bool aspm_support_enabled = true; static DEFINE_MUTEX(aspm_lock); static LIST_HEAD(link_list); @@ -896,6 +897,7 @@ static int __init pcie_aspm_disable(char *str) { if (!strcmp(str, "off")) { aspm_disabled = 1; + aspm_support_enabled = false; printk(KERN_INFO "PCIe ASPM is disabled\n"); } else if (!strcmp(str, "force")) { aspm_force = 1; @@ -930,3 +932,8 @@ int pcie_aspm_enabled(void) } EXPORT_SYMBOL(pcie_aspm_enabled); +bool pcie_aspm_support_enabled(void) +{ + return aspm_support_enabled; +} +EXPORT_SYMBOL(pcie_aspm_support_enabled); diff --git a/include/linux/pci.h b/include/linux/pci.h index 16c9f2e61977..96f70d7e058d 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1002,12 +1002,11 @@ extern bool pcie_ports_auto; #endif #ifndef CONFIG_PCIEASPM -static inline int pcie_aspm_enabled(void) -{ - return 0; -} +static inline int pcie_aspm_enabled(void) { return 0; } +static inline bool pcie_aspm_support_enabled(void) { return false; } #else extern int pcie_aspm_enabled(void); +extern bool pcie_aspm_support_enabled(void); #endif #ifdef CONFIG_PCIEAER -- cgit v1.2.3 From 1a680b7c325882188865f05b9a88d32f75f26495 Mon Sep 17 00:00:00 2001 From: Naga Chumbalkar <nagananda.chumbalkar@hp.com> Date: Mon, 21 Mar 2011 03:29:08 +0000 Subject: PCI: PCIe links may not get configured for ASPM under POWERSAVE mode v3 -> v2: Moved ASPM enabling logic to pci_set_power_state() v2 -> v1: Preserved the logic in pci_raw_set_power_state() : Added ASPM enabling logic after scanning Root Bridge : http://marc.info/?l=linux-pci&m=130046996216391&w=2 v1 : http://marc.info/?l=linux-pci&m=130013164703283&w=2 The assumption made in commit 41cd766b065970ff6f6c89dd1cf55fa706c84a3d (PCI: Don't enable aspm before drivers have had a chance to veto it) that pci_enable_device() will result in re-configuring ASPM when aspm_policy is POWERSAVE is no longer valid. This is due to commit 97c145f7c87453cec90e91238fba5fe2c1561b32 (PCI: read current power state at enable time) which resets dev->current_state to D0. Due to this the call to pcie_aspm_pm_state_change() is never made. Note the equality check (below) that returns early: ./drivers/pci/pci.c: pci_raw_set_pci_power_state() 546 /* Check if we're already there */ 547 if (dev->current_state == state) 548 return 0; Therefore OSPM never configures the PCIe links for ASPM to turn them "on". Fix it by configuring ASPM from the pci_enable_device() code path. This also allows a driver such as the e1000e networking driver a chance to disable ASPM (L0s, L1), if need be, prior to enabling the device. A driver may perform this action if the device is known to mis-behave wrt ASPM. Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> --- drivers/pci/pci.c | 6 ++++++ drivers/pci/pcie/aspm.c | 22 ++++++++++++++++++++++ include/linux/pci-aspm.h | 4 ++++ 3 files changed, 32 insertions(+) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index b714d787bddd..2472e7177b4b 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -740,6 +740,12 @@ int pci_set_power_state(struct pci_dev *dev, pci_power_t state) if (!__pci_complete_power_transition(dev, state)) error = 0; + /* + * When aspm_policy is "powersave" this call ensures + * that ASPM is configured. + */ + if (!error && dev->bus->self) + pcie_aspm_powersave_config_link(dev->bus->self); return error; } diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index bbdb4fd85b9c..e61b82e611c2 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -708,6 +708,28 @@ void pcie_aspm_pm_state_change(struct pci_dev *pdev) up_read(&pci_bus_sem); } +void pcie_aspm_powersave_config_link(struct pci_dev *pdev) +{ + struct pcie_link_state *link = pdev->link_state; + + if (aspm_disabled || !pci_is_pcie(pdev) || !link) + return; + + if (aspm_policy != POLICY_POWERSAVE) + return; + + if ((pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT) && + (pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)) + return; + + down_read(&pci_bus_sem); + mutex_lock(&aspm_lock); + pcie_config_aspm_path(link); + pcie_set_clkpm(link, policy_to_clkpm_state(link)); + mutex_unlock(&aspm_lock); + up_read(&pci_bus_sem); +} + /* * pci_disable_link_state - disable pci device's link state, so the link will * never enter specific states diff --git a/include/linux/pci-aspm.h b/include/linux/pci-aspm.h index ce6810512c66..67cb3ae38016 100644 --- a/include/linux/pci-aspm.h +++ b/include/linux/pci-aspm.h @@ -26,6 +26,7 @@ extern void pcie_aspm_init_link_state(struct pci_dev *pdev); extern void pcie_aspm_exit_link_state(struct pci_dev *pdev); extern void pcie_aspm_pm_state_change(struct pci_dev *pdev); +extern void pcie_aspm_powersave_config_link(struct pci_dev *pdev); extern void pci_disable_link_state(struct pci_dev *pdev, int state); extern void pcie_clear_aspm(void); extern void pcie_no_aspm(void); @@ -39,6 +40,9 @@ static inline void pcie_aspm_exit_link_state(struct pci_dev *pdev) static inline void pcie_aspm_pm_state_change(struct pci_dev *pdev) { } +static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev) +{ +} static inline void pci_disable_link_state(struct pci_dev *pdev, int state) { } -- cgit v1.2.3 From bbfa306a1e5d9618231aa0de3d52a8eb1219d0c3 Mon Sep 17 00:00:00 2001 From: Naga Chumbalkar <nagananda.chumbalkar@hp.com> Date: Mon, 21 Mar 2011 03:29:14 +0000 Subject: PCI: Changing ASPM policy, via /sys, to POWERSAVE could cause NMIs v3 -> v2: Modified the text that describes the problem v2 -> v1: Returned -EPERM v1 : http://marc.info/?l=linux-pci&m=130013194803727&w=2 For servers whose hardware cannot handle ASPM the BIOS ought to set the FADT bit shown below: In Sec 5.2.9.3 (IA-PC Boot Arch. Flags) of ACPI4.0a Specification, please see Table 5-11: PCIe ASPM Controls: If set, indicates to OSPM that it must not enable OPSM ASPM control on this platform. However there are shipping servers whose BIOS did not set this bit. (An example is the HP ProLiant DL385 G6. A Maintenance BIOS will fix that). For such servers even if a call is made via pci_no_aspm(), based on _OSC support in the BIOS, it may be too late because the ASPM code may have already allocated and filled its "link_list". So if a user sets the ASPM "policy" to "powersave" via /sys then pcie_aspm_set_policy() will run through the "link_list" and re-configure ASPM policy on devices that advertise ASPM L0s/L1 capability: # echo powersave > /sys/module/pcie_aspm/parameters/policy # cat /sys/module/pcie_aspm/parameters/policy default performance [powersave] That can cause NMIs since the hardware doesn't play well with ASPM: [ 1651.906015] NMI: PCI system error (SERR) for reason b1 on CPU 0. [ 1651.906015] Dazed and confused, but trying to continue Ideally, the BIOS should have set that FADT bit in the first place but we could be more robust - especially given the fact that Windows doesn't cause NMIs in the above scenario. There should be a sanity check to not allow a user to modify ASPM policy when aspm_disabled is set. Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> --- drivers/pci/pcie/aspm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index e61b82e611c2..eee09f756ec9 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -770,6 +770,8 @@ static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp) int i; struct pcie_link_state *link; + if (aspm_disabled) + return -EPERM; for (i = 0; i < ARRAY_SIZE(policy_str); i++) if (!strncmp(val, policy_str[i], strlen(policy_str[i]))) break; @@ -824,6 +826,8 @@ static ssize_t link_state_store(struct device *dev, struct pcie_link_state *link, *root = pdev->link_state->root; u32 val = buf[0] - '0', state = 0; + if (aspm_disabled) + return -EPERM; if (n < 1 || val > 3) return -EINVAL; -- cgit v1.2.3 From eca67315e0e0d5fd91264d79c88694006dbc7d31 Mon Sep 17 00:00:00 2001 From: Naga Chumbalkar <nagananda.chumbalkar@hp.com> Date: Mon, 21 Mar 2011 03:29:20 +0000 Subject: PCI: Disable ASPM when _OSC control is not granted for PCIe services v3 -> v2: Added text to describe the problem v2 -> v1: Split this patch from v1 v1 : Part of: http://marc.info/?l=linux-pci&m=130042212003242&w=2 Disable ASPM when no _OSC control for PCIe services is granted by the BIOS. This is to protect systems with a buggy BIOS that did not set the ACPI FADT "ASPM Controls" bit even though the underlying HW can't do ASPM. To turn "on" ASPM the minimum the BIOS needs to do: 1. Clear the ACPI FADT "ASPM Controls" bit. 2. Support _OSC appropriately There is no _OSC Control bit for ASPM. However, we expect the BIOS to support _OSC for a Root Bridge that originates a PCIe hierarchy. If this is not the case - we are better off not enabling ASPM on that server. Commit 852972acff8f10f3a15679be2059bb94916cba5d (ACPI: Disable ASPM if the Platform won't provide _OSC control for PCIe) describes the above scenario. To quote verbatim from there: [The PCI SIG documentation for the _OSC OS/firmware handshaking interface states: "If the _OSC control method is absent from the scope of a host bridge device, then the operating system must not enable or attempt to use any features defined in this section for the hierarchy originated by the host bridge." The obvious interpretation of this is that the OS should not attempt to use PCIe hotplug, PME or AER - however, the specification also notes that an _OSC method is *required* for PCIe hierarchies, and experimental validation with An Alternative OS indicates that it doesn't use any PCIe functionality if the _OSC method is missing. That arguably means we shouldn't be using MSI or extended config space, but right now our problems seem to be limited to vendors being surprised when ASPM gets enabled on machines when other OSs refuse to do so. So, for now, let's just disable ASPM if the _OSC method doesn't exist or refuses to hand over PCIe capability control.] Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> --- drivers/acpi/pci_root.c | 9 +++++++-- drivers/pci/pcie/portdrv_core.c | 5 +---- 2 files changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index c7358dd68b31..f911a2f8cc34 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -32,6 +32,7 @@ #include <linux/pm_runtime.h> #include <linux/pci.h> #include <linux/pci-acpi.h> +#include <linux/pci-aspm.h> #include <linux/acpi.h> #include <linux/slab.h> #include <acpi/acpi_bus.h> @@ -591,12 +592,16 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device) status = acpi_pci_osc_control_set(device->handle, &flags, OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); - if (ACPI_SUCCESS(status)) + if (ACPI_SUCCESS(status)) { dev_info(root->bus->bridge, "ACPI _OSC control (0x%02x) granted\n", flags); - else + } else { dev_dbg(root->bus->bridge, "ACPI _OSC request failed (code %d)\n", status); + printk(KERN_INFO "Unable to assume _OSC PCIe control. " + "Disabling ASPM\n"); + pcie_no_aspm(); + } } pci_acpi_add_bus_pm_notifier(device, root->bus); diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 5130d0d22390..595654a1a6a6 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -15,7 +15,6 @@ #include <linux/slab.h> #include <linux/pcieport_if.h> #include <linux/aer.h> -#include <linux/pci-aspm.h> #include "../pci.h" #include "portdrv.h" @@ -356,10 +355,8 @@ int pcie_port_device_register(struct pci_dev *dev) /* Get and check PCI Express port services */ capabilities = get_port_device_capability(dev); - if (!capabilities) { - pcie_no_aspm(); + if (!capabilities) return 0; - } pci_set_master(dev); /* -- cgit v1.2.3 From 9011cd250e26d9159943895adf29453af1b93298 Mon Sep 17 00:00:00 2001 From: Tõnu Samuel <tonu@jes.ee> Date: Sat, 12 Mar 2011 11:29:25 +0200 Subject: zd1211rw: TrendNet TEW-509UB id added MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Tõnu Samuel <tonu@jes.ee> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/zd1211rw/zd_usb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index 81e80489a052..58236e6d0921 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c @@ -60,6 +60,7 @@ static struct usb_device_id usb_ids[] = { { USB_DEVICE(0x157e, 0x300a), .driver_info = DEVICE_ZD1211 }, { USB_DEVICE(0x157e, 0x300b), .driver_info = DEVICE_ZD1211 }, { USB_DEVICE(0x157e, 0x3204), .driver_info = DEVICE_ZD1211 }, + { USB_DEVICE(0x157e, 0x3207), .driver_info = DEVICE_ZD1211 }, { USB_DEVICE(0x1740, 0x2000), .driver_info = DEVICE_ZD1211 }, { USB_DEVICE(0x6891, 0xa727), .driver_info = DEVICE_ZD1211 }, /* ZD1211B */ -- cgit v1.2.3 From f8a22a2b165c79a46e275097fcadab7fd151c504 Mon Sep 17 00:00:00 2001 From: Dan Carpenter <error27@gmail.com> Date: Tue, 15 Mar 2011 10:01:58 +0300 Subject: iwlwifi: missing unlock on error path We should unlock here instead of returning -EINVAL directly. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/iwlwifi/iwl-agn.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 581dc9f10273..321b18b59135 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -3009,14 +3009,17 @@ static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw *hw) mutex_lock(&priv->mutex); - if (!priv->_agn.offchan_tx_skb) - return -EINVAL; + if (!priv->_agn.offchan_tx_skb) { + ret = -EINVAL; + goto unlock; + } priv->_agn.offchan_tx_skb = NULL; ret = iwl_scan_cancel_timeout(priv, 200); if (ret) ret = -EIO; +unlock: mutex_unlock(&priv->mutex); return ret; -- cgit v1.2.3 From 3bf184a7e96ff21965fa524260f60af8ab4d9133 Mon Sep 17 00:00:00 2001 From: Joe Gunn <armadefuego@yahoo.com> Date: Tue, 15 Mar 2011 08:41:19 -0700 Subject: orinoco: Maintain lock until entry removed from list Removing an entry from the scan_list should be performed while holding the lock. Signed-off-by: Joseph J. Gunn <armadefuego@yahoo.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/orinoco/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c index f3d396e7544b..62c6b2b37dbe 100644 --- a/drivers/net/wireless/orinoco/main.c +++ b/drivers/net/wireless/orinoco/main.c @@ -1376,13 +1376,13 @@ static void orinoco_process_scan_results(struct work_struct *work) spin_lock_irqsave(&priv->scan_lock, flags); list_for_each_entry_safe(sd, temp, &priv->scan_list, list) { - spin_unlock_irqrestore(&priv->scan_lock, flags); buf = sd->buf; len = sd->len; type = sd->type; list_del(&sd->list); + spin_unlock_irqrestore(&priv->scan_lock, flags); kfree(sd); if (len > 0) { -- cgit v1.2.3 From 2cea5b3c0ce976eae78bdaa192223f952185045c Mon Sep 17 00:00:00 2001 From: Peter Lemenkov <lemenkov@gmail.com> Date: Wed, 16 Mar 2011 17:12:15 +0300 Subject: rt2x00: Add rt2870 device id Add ID for Asus USB-N11 Wi-FI adapter. Tested by me. Signed-off-by: Peter Lemenkov <lemenkov@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/rt2x00/rt2800usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index f1a92144996f..12f5b2f940e4 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -719,6 +719,7 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x0b05, 0x1732), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x0b05, 0x1742), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x0b05, 0x1784), USB_DEVICE_DATA(&rt2800usb_ops) }, + { USB_DEVICE(0x1761, 0x0b05), USB_DEVICE_DATA(&rt2800usb_ops) }, /* AzureWave */ { USB_DEVICE(0x13d3, 0x3247), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x13d3, 0x3273), USB_DEVICE_DATA(&rt2800usb_ops) }, @@ -913,7 +914,6 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x0b05, 0x1760), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x0b05, 0x1761), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x0b05, 0x1790), USB_DEVICE_DATA(&rt2800usb_ops) }, - { USB_DEVICE(0x1761, 0x0b05), USB_DEVICE_DATA(&rt2800usb_ops) }, /* AzureWave */ { USB_DEVICE(0x13d3, 0x3262), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x13d3, 0x3284), USB_DEVICE_DATA(&rt2800usb_ops) }, -- cgit v1.2.3 From 7a2a75bcc2a54c9b87c8b3831c5369717fcf513d Mon Sep 17 00:00:00 2001 From: Peter Lemenkov <lemenkov@gmail.com> Date: Wed, 16 Mar 2011 17:12:16 +0300 Subject: rt2x00: Add Planex Communications, Inc. RT8070 Add Planex Communications, Inc. RT8070 under CONFIG_RT2800USB_UNKNOWN Signed-off-by: Peter Lemenkov <lemenkov@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/rt2x00/rt2800usb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 12f5b2f940e4..1f73cfaad962 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -961,6 +961,7 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x1d4d, 0x0010), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x1d4d, 0x0011), USB_DEVICE_DATA(&rt2800usb_ops) }, /* Planex */ + { USB_DEVICE(0x2019, 0x5201), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x2019, 0xab24), USB_DEVICE_DATA(&rt2800usb_ops) }, /* Qcom */ { USB_DEVICE(0x18e8, 0x6259), USB_DEVICE_DATA(&rt2800usb_ops) }, -- cgit v1.2.3 From 9a74597235e54c16c31da62835e2e9285c631044 Mon Sep 17 00:00:00 2001 From: Peter Lemenkov <lemenkov@gmail.com> Date: Wed, 16 Mar 2011 17:12:17 +0300 Subject: rt2x00: Add 2L Central Europe BV 8070 Add 2L Central Europe BV 8070 under CONFIG_RT2800USB_UNKNOWN Signed-off-by: Peter Lemenkov <lemenkov@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/rt2x00/rt2800usb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 1f73cfaad962..38adae9c0e0b 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -937,6 +937,8 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x07d1, 0x3c13), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x07d1, 0x3c15), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x07d1, 0x3c17), USB_DEVICE_DATA(&rt2800usb_ops) }, + /* Edimax */ + { USB_DEVICE(0x7392, 0x4085), USB_DEVICE_DATA(&rt2800usb_ops) }, /* Encore */ { USB_DEVICE(0x203d, 0x14a1), USB_DEVICE_DATA(&rt2800usb_ops) }, /* Gemtek */ -- cgit v1.2.3 From 5da201a4c86aac6c46a071c5c8255601090b65b2 Mon Sep 17 00:00:00 2001 From: Peter Lemenkov <lemenkov@gmail.com> Date: Wed, 16 Mar 2011 17:12:18 +0300 Subject: rt2x00: Add unknown Toshiba device Add unknown Toshiba device, mentioned in rt3572sta sources, under CONFIG_RT2800USB_UNKNOWN Signed-off-by: Peter Lemenkov <lemenkov@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/rt2x00/rt2800usb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 38adae9c0e0b..4e368657a83c 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -975,6 +975,8 @@ static struct usb_device_id rt2800usb_device_table[] = { /* Sweex */ { USB_DEVICE(0x177f, 0x0153), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x177f, 0x0313), USB_DEVICE_DATA(&rt2800usb_ops) }, + /* Toshiba */ + { USB_DEVICE(0x0930, 0x0a07), USB_DEVICE_DATA(&rt2800usb_ops) }, /* Zyxel */ { USB_DEVICE(0x0586, 0x341a), USB_DEVICE_DATA(&rt2800usb_ops) }, #endif -- cgit v1.2.3 From 6e9d592f02f657361168c94e22d9602cad71a09c Mon Sep 17 00:00:00 2001 From: Ilia Mirkin <imirkin@alum.mit.edu> Date: Thu, 17 Mar 2011 14:08:57 -0400 Subject: rtlwifi: Fix memset argument order These were found using the following semantic match: // <smpl> @@expression E1; type T;@@ * memset(E1, ... * sizeof(T) * ..., ...); // </smpl> Also take this opportunity to remove the unnecessary void* casts. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/rtlwifi/efuse.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/drivers/net/wireless/rtlwifi/efuse.c b/drivers/net/wireless/rtlwifi/efuse.c index 4f92cba6810a..f74a8701c67d 100644 --- a/drivers/net/wireless/rtlwifi/efuse.c +++ b/drivers/net/wireless/rtlwifi/efuse.c @@ -410,8 +410,8 @@ bool efuse_shadow_update(struct ieee80211_hw *hw) if (!efuse_shadow_update_chk(hw)) { efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]); - memcpy((void *)&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0], - (void *)&rtlefuse->efuse_map[EFUSE_INIT_MAP][0], + memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0], + &rtlefuse->efuse_map[EFUSE_INIT_MAP][0], rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]); RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD, @@ -446,9 +446,9 @@ bool efuse_shadow_update(struct ieee80211_hw *hw) if (word_en != 0x0F) { u8 tmpdata[8]; - memcpy((void *)tmpdata, - (void *)(&rtlefuse-> - efuse_map[EFUSE_MODIFY_MAP][base]), 8); + memcpy(tmpdata, + &rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base], + 8); RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_LOUD, ("U-efuse\n"), tmpdata, 8); @@ -465,8 +465,8 @@ bool efuse_shadow_update(struct ieee80211_hw *hw) efuse_power_switch(hw, true, false); efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]); - memcpy((void *)&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0], - (void *)&rtlefuse->efuse_map[EFUSE_INIT_MAP][0], + memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0], + &rtlefuse->efuse_map[EFUSE_INIT_MAP][0], rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]); RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD, ("<---\n")); @@ -479,13 +479,12 @@ void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw) struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); if (rtlefuse->autoload_failflag == true) { - memset((void *)(&rtlefuse->efuse_map[EFUSE_INIT_MAP][0]), 128, - 0xFF); + memset(&rtlefuse->efuse_map[EFUSE_INIT_MAP][0], 0xFF, 128); } else efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]); - memcpy((void *)&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0], - (void *)&rtlefuse->efuse_map[EFUSE_INIT_MAP][0], + memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0], + &rtlefuse->efuse_map[EFUSE_INIT_MAP][0], rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]); } @@ -694,8 +693,8 @@ static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset, u8 *data) if (offset > 15) return false; - memset((void *)data, PGPKT_DATA_SIZE * sizeof(u8), 0xff); - memset((void *)tmpdata, PGPKT_DATA_SIZE * sizeof(u8), 0xff); + memset(data, 0xff, PGPKT_DATA_SIZE * sizeof(u8)); + memset(tmpdata, 0xff, PGPKT_DATA_SIZE * sizeof(u8)); while (bcontinual && (efuse_addr < EFUSE_MAX_SIZE)) { if (readstate & PG_STATE_HEADER) { @@ -862,7 +861,7 @@ static void efuse_write_data_case2(struct ieee80211_hw *hw, u16 *efuse_addr, tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en); - memset((void *)originaldata, 8 * sizeof(u8), 0xff); + memset(originaldata, 0xff, 8 * sizeof(u8)); if (efuse_pg_packet_read(hw, tmp_pkt.offset, originaldata)) { badworden = efuse_word_enable_data_write(hw, @@ -917,7 +916,7 @@ static int efuse_pg_packet_write(struct ieee80211_hw *hw, target_pkt.offset = offset; target_pkt.word_en = word_en; - memset((void *)target_pkt.data, 8 * sizeof(u8), 0xFF); + memset(target_pkt.data, 0xFF, 8 * sizeof(u8)); efuse_word_enable_data_read(word_en, data, target_pkt.data); target_word_cnts = efuse_calculate_word_cnts(target_pkt.word_en); @@ -1022,7 +1021,7 @@ static u8 efuse_word_enable_data_write(struct ieee80211_hw *hw, u8 badworden = 0x0F; u8 tmpdata[8]; - memset((void *)tmpdata, PGPKT_DATA_SIZE, 0xff); + memset(tmpdata, 0xff, PGPKT_DATA_SIZE); RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD, ("word_en = %x efuse_addr=%x\n", word_en, efuse_addr)); -- cgit v1.2.3 From 858022aa6fad90ec86c567cbf54682a61dd39a01 Mon Sep 17 00:00:00 2001 From: Randy Dunlap <randy.dunlap@oracle.com> Date: Fri, 18 Mar 2011 09:33:02 -0700 Subject: wireless: fix 80211 kernel-doc warnings Fix many of each of these warnings: Warning(include/net/cfg80211.h:519): No description found for parameter 'rxrate' Warning(include/net/mac80211.h:1163): bad line: Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- include/net/cfg80211.h | 3 ++- include/net/mac80211.h | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 60f7876b6da8..b2b9d28cb4ab 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -486,7 +486,8 @@ struct rate_info { * @plink_state: mesh peer link state * @signal: signal strength of last received packet in dBm * @signal_avg: signal strength average in dBm - * @txrate: current unicast bitrate to this station + * @txrate: current unicast bitrate from this station + * @rxrate: current unicast bitrate to this station * @rx_packets: packets received from this station * @tx_packets: packets transmitted to this station * @tx_retries: cumulative retry counts diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 8650e7bf2ed0..cefe1b37c493 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1160,7 +1160,7 @@ enum ieee80211_hw_flags { * @napi_weight: weight used for NAPI polling. You must specify an * appropriate value here if a napi_poll operation is provided * by your driver. - + * * @max_rx_aggregation_subframes: maximum buffer size (number of * sub-frames) to be used for A-MPDU block ack receiver * aggregation. -- cgit v1.2.3 From 61e1b0b00c793ad5a32fe2181c9f77115fed5dc4 Mon Sep 17 00:00:00 2001 From: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Date: Mon, 21 Mar 2011 18:27:21 +0530 Subject: ath9k: Fix kernel panic in AR2427 Kernel panic occurs just after AR2427 establishes connection with AP. Unless aggregation is enabled we don't initialize the TID structure. Thus accesing the elements of the TID structure when aggregation is disabled, leads to NULL pointer dereferencing. [ 191.320358] Call Trace: [ 191.320364] [<fd250ea7>] ? ath9k_tx+0xa7/0x200 [ath9k] [ 191.320376] [<fd1ec7fc>] ? __ieee80211_tx+0x5c/0x1e0 [mac80211] [ 191.320386] [<fd1edd2b>] ? ieee80211_tx+0x7b/0x90 [mac80211] [ 191.320395] [<fd1edddd>] ? ieee80211_xmit+0x9d/0x1d0 [mac80211] [ 191.320401] [<c014218f>] ? wake_up_state+0xf/0x20 [ 191.320405] [<c015dbc8>] ? signal_wake_up+0x28/0x40 [ 191.320410] [<c012a578>] ? default_spin_lock_flags+0x8/0x10 [ 191.320420] [<fd1ee308>] ? ieee80211_subif_start_xmit+0x2e8/0x7c0 [mac80211] [ 191.320425] [<c058f905>] ? do_page_fault+0x295/0x3a0 [ 191.320431] [<c04c4a3d>] ? dev_hard_start_xmit+0x1ad/0x210 [ 191.320436] [<c04d96b5>] ? sch_direct_xmit+0x105/0x170 [ 191.320445] [<fd1f161a>] ? get_sta_flags+0x2a/0x40 [mac80211] [ 191.320449] [<c04c780f>] ? dev_queue_xmit+0x37f/0x4b0 [ 191.320452] [<c04d75b0>] ? eth_header+0x0/0xb0 [ 191.320456] [<c04cc479>] ? neigh_resolve_output+0xe9/0x310 [ 191.320461] [<c053d295>] ? ip6_output_finish+0xa5/0x110 [ 191.320464] [<c053e354>] ? ip6_output2+0x134/0x250 [ 191.320468] [<c053f7dd>] ? ip6_output+0x6d/0x100 [ 191.320471] [<c0559665>] ? mld_sendpack+0x395/0x3e0 [ 191.320475] [<c0557f81>] ? add_grhead+0x31/0xa0 [ 191.320478] [<c055a83c>] ? mld_send_cr+0x1bc/0x2b0 [ 191.320482] [<c01535d9>] ? irq_exit+0x39/0x70 [ 191.320485] [<c055a940>] ? mld_ifc_timer_expire+0x10/0x40 [ 191.320489] [<c015b92e>] ? run_timer_softirq+0x13e/0x2c0 [ 191.320493] [<c0103a30>] ? common_interrupt+0x30/0x40 [ 191.320498] [<c055a930>] ? mld_ifc_timer_expire+0x0/0x40 [ 191.320502] [<c0153358>] ? __do_softirq+0x98/0x1b0 [ 191.320506] [<c01534b5>] ? do_softirq+0x45/0x50 [ 191.320509] [<c0153605>] ? irq_exit+0x65/0x70 [ 191.320513] [<c05917dc>] ? smp_apic_timer_interrupt+0x5c/0x8b [ 191.320516] [<c0103df1>] ? apic_timer_interrupt+0x31/0x40 [ 191.320521] [<c016007b>] ? k_getrusage+0x12b/0x2f0 [ 191.320525] [<c039e384>] ? acpi_idle_enter_simple+0x117/0x148 [ 191.320529] [<c04a20da>] ? cpuidle_idle_call+0x7a/0x100 [ 191.320532] [<c01021d4>] ? cpu_idle+0x94/0xd0 [ 191.320536] [<c057ab88>] ? rest_init+0x58/0x60 [ 191.320541] [<c07a58ec>] ? start_kernel+0x351/0x357 [ 191.320544] [<c07a53c7>] ? unknown_bootoption+0x0/0x19e [ 191.320548] [<c07a50aa>] ? i386_start_kernel+0xaa/0xb1 [ 191.320550] Code: 03 66 3d 00 03 0f 84 7c 02 00 00 83 c3 18 0f b6 03 8b 4d e0 89 c3 83 e3 0f 6b c3 48 89 5d d8 8d 04 06 8d 50 0c 89 55 d0 8b 40 20 <8b> 00 3b 01 0f 85 8e 02 00 00 f6 47 20 40 0f 84 29 ff ff ff 8b [ 191.320634] EIP: [<fd2586d4>] ath_tx_start+0x474/0x770 [ath9k] SS:ESP 0068:c0761a90 [ 191.320642] CR2: 0000000000000000 [ 191.320647] ---[ end trace 9296ef23b9076ece ]--- [ 191.320650] Kernel panic - not syncing: Fatal exception in interrupt Cc: stable@kernel.org Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/ath/ath9k/xmit.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index ef22096d40c9..26734e53b37f 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1725,8 +1725,8 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf, u8 tidno; spin_lock_bh(&txctl->txq->axq_lock); - - if (ieee80211_is_data_qos(hdr->frame_control) && txctl->an) { + if ((sc->sc_flags & SC_OP_TXAGGR) && txctl->an && + ieee80211_is_data_qos(hdr->frame_control)) { tidno = ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK; tid = ATH_AN_2_TID(txctl->an, tidno); -- cgit v1.2.3 From 8bc8aecdc5e26cfda12dbd6867af4aa67836da6a Mon Sep 17 00:00:00 2001 From: Felix Fietkau <nbd@openwrt.org> Date: Mon, 21 Mar 2011 20:01:00 +0100 Subject: mac80211: initialize sta->last_rx in sta_info_alloc This field is used to determine the inactivity time. When in AP mode, hostapd uses it for kicking out inactive clients after a while. Without this patch, hostapd immediately deauthenticates a new client if it checks the inactivity time before the client sends its first data frame. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com> --- net/mac80211/sta_info.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 5a11078827ab..d0311a322ddd 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -243,6 +243,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, memcpy(sta->sta.addr, addr, ETH_ALEN); sta->local = local; sta->sdata = sdata; + sta->last_rx = jiffies; ewma_init(&sta->avg_signal, 1024, 8); -- cgit v1.2.3 From 21149d611ecd0faf60f4ef94aa2bf8ed872f92bf Mon Sep 17 00:00:00 2001 From: Robin Dong <sanbai@taobao.com> Date: Mon, 21 Mar 2011 20:39:22 -0400 Subject: ext4: add missing space in printk's in __ext4_grp_locked_error() When we do performence-testing on ext4 filesystem, we observed a warning like this: EXT4-fs error (device sda7): ext4_mb_generate_buddy:718: group 259825901 blocks in bitmap, 26057 in gd instead, it should be "group 2598, 25901 blocks in bitmap, 26057 in gd" Reviewed-by: Coly Li <bosong.ly@taobao.com> Cc: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Robin Dong <sanbai@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index b357c2700d72..ccfa6865ea59 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -595,7 +595,7 @@ __acquires(bitlock) vaf.fmt = fmt; vaf.va = &args; - printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u", + printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u, ", sb->s_id, function, line, grp); if (ino) printk(KERN_CONT "inode %lu: ", ino); -- cgit v1.2.3 From b31268ac793fd300da66b9c28bbf0a200339ab96 Mon Sep 17 00:00:00 2001 From: Trond Myklebust <Trond.Myklebust@netapp.com> Date: Mon, 21 Mar 2011 17:02:00 -0400 Subject: FS: Use stable writes when not doing a bulk flush If we're only doing a single write, and there are no other unstable writes being queued up, we might want to just flip to using a stable write RPC call. Reviewed-by: NeilBrown <neilb@suse.de> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/pagelist.c | 3 +++ fs/nfs/write.c | 16 +++++++++++++--- include/linux/nfs_fs.h | 2 ++ include/linux/nfs_page.h | 1 + 4 files changed, 19 insertions(+), 3 deletions(-) diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 23e794410669..fd85618149a1 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -223,6 +223,7 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc, desc->pg_count = 0; desc->pg_bsize = bsize; desc->pg_base = 0; + desc->pg_moreio = 0; desc->pg_inode = inode; desc->pg_doio = doio; desc->pg_ioflags = io_flags; @@ -335,9 +336,11 @@ int nfs_pageio_add_request(struct nfs_pageio_descriptor *desc, struct nfs_page *req) { while (!nfs_pageio_do_add_request(desc, req)) { + desc->pg_moreio = 1; nfs_pageio_doio(desc); if (desc->pg_error < 0) return 0; + desc->pg_moreio = 0; } return 1; } diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 47a3ad63e0d5..4d686ee53244 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -179,8 +179,8 @@ static int wb_priority(struct writeback_control *wbc) if (wbc->for_reclaim) return FLUSH_HIGHPRI | FLUSH_STABLE; if (wbc->for_kupdate || wbc->for_background) - return FLUSH_LOWPRI; - return 0; + return FLUSH_LOWPRI | FLUSH_COND_STABLE; + return FLUSH_COND_STABLE; } /* @@ -863,7 +863,7 @@ static int nfs_write_rpcsetup(struct nfs_page *req, data->args.context = get_nfs_open_context(req->wb_context); data->args.lock_context = req->wb_lock_context; data->args.stable = NFS_UNSTABLE; - if (how & FLUSH_STABLE) { + if (how & (FLUSH_STABLE | FLUSH_COND_STABLE)) { data->args.stable = NFS_DATA_SYNC; if (!nfs_need_commit(NFS_I(inode))) data->args.stable = NFS_FILE_SYNC; @@ -912,6 +912,12 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc) nfs_list_remove_request(req); + if ((desc->pg_ioflags & FLUSH_COND_STABLE) && + (desc->pg_moreio || NFS_I(desc->pg_inode)->ncommit || + desc->pg_count > wsize)) + desc->pg_ioflags &= ~FLUSH_COND_STABLE; + + nbytes = desc->pg_count; do { size_t len = min(nbytes, wsize); @@ -1002,6 +1008,10 @@ static int nfs_flush_one(struct nfs_pageio_descriptor *desc) if ((!lseg) && list_is_singular(&data->pages)) lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW); + if ((desc->pg_ioflags & FLUSH_COND_STABLE) && + (desc->pg_moreio || NFS_I(desc->pg_inode)->ncommit)) + desc->pg_ioflags &= ~FLUSH_COND_STABLE; + /* Set up the argument struct */ ret = nfs_write_rpcsetup(req, data, &nfs_write_full_ops, desc->pg_count, 0, lseg, desc->pg_ioflags); out: diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index f88522b10a38..cb2add401f25 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -33,6 +33,8 @@ #define FLUSH_STABLE 4 /* commit to stable storage */ #define FLUSH_LOWPRI 8 /* low priority background flush */ #define FLUSH_HIGHPRI 16 /* high priority memory reclaim flush */ +#define FLUSH_COND_STABLE 32 /* conditional stable write - only stable + * if everything fits in one RPC */ #ifdef __KERNEL__ diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 90907ada6d52..92d54c81f51e 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -57,6 +57,7 @@ struct nfs_pageio_descriptor { size_t pg_count; size_t pg_bsize; unsigned int pg_base; + char pg_moreio; struct inode *pg_inode; int (*pg_doio)(struct nfs_pageio_descriptor *); -- cgit v1.2.3 From b8413f98f997bb3ed7327e6d7117e7e91ce010c3 Mon Sep 17 00:00:00 2001 From: Trond Myklebust <Trond.Myklebust@netapp.com> Date: Mon, 21 Mar 2011 15:37:01 -0400 Subject: NFS: Fix a hang/infinite loop in nfs_wb_page() When one of the two waits in nfs_commit_inode() is interrupted, it returns a non-negative value, which causes nfs_wb_page() to think that the operation was successful causing it to busy-loop rather than exiting. It also causes nfs_file_fsync() to incorrectly report the file as being successfully committed to disk. This patch fixes both problems by ensuring that we return an error if the attempts to wait fail. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org --- fs/nfs/write.c | 31 +++++++++++++++++++------------ 1 file changed, 19 insertions(+), 12 deletions(-) diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 4d686ee53244..55a8c3671233 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1261,13 +1261,17 @@ void nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data) #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) static int nfs_commit_set_lock(struct nfs_inode *nfsi, int may_wait) { + int ret; + if (!test_and_set_bit(NFS_INO_COMMIT, &nfsi->flags)) return 1; - if (may_wait && !out_of_line_wait_on_bit_lock(&nfsi->flags, - NFS_INO_COMMIT, nfs_wait_bit_killable, - TASK_KILLABLE)) - return 1; - return 0; + if (!may_wait) + return 0; + ret = out_of_line_wait_on_bit_lock(&nfsi->flags, + NFS_INO_COMMIT, + nfs_wait_bit_killable, + TASK_KILLABLE); + return (ret < 0) ? ret : 1; } static void nfs_commit_clear_lock(struct nfs_inode *nfsi) @@ -1443,9 +1447,10 @@ int nfs_commit_inode(struct inode *inode, int how) { LIST_HEAD(head); int may_wait = how & FLUSH_SYNC; - int res = 0; + int res; - if (!nfs_commit_set_lock(NFS_I(inode), may_wait)) + res = nfs_commit_set_lock(NFS_I(inode), may_wait); + if (res <= 0) goto out_mark_dirty; spin_lock(&inode->i_lock); res = nfs_scan_commit(inode, &head, 0, 0); @@ -1454,12 +1459,14 @@ int nfs_commit_inode(struct inode *inode, int how) int error = nfs_commit_list(inode, &head, how); if (error < 0) return error; - if (may_wait) - wait_on_bit(&NFS_I(inode)->flags, NFS_INO_COMMIT, - nfs_wait_bit_killable, - TASK_KILLABLE); - else + if (!may_wait) goto out_mark_dirty; + error = wait_on_bit(&NFS_I(inode)->flags, + NFS_INO_COMMIT, + nfs_wait_bit_killable, + TASK_KILLABLE); + if (error < 0) + return error; } else nfs_commit_clear_lock(NFS_I(inode)); return res; -- cgit v1.2.3 From 4596fe07679ff0fae904515691ea747467614871 Mon Sep 17 00:00:00 2001 From: Eric Sandeen <sandeen@redhat.com> Date: Mon, 21 Mar 2011 21:25:13 -0400 Subject: ext4: don't kfree uninitialized s_group_info members We can call kfree on uninitialized members of the s_group_info array on an the error path. We can avoid this by kzalloc'ing the array. This doesn't entirely solve the oops on mount if we fail down this path; failed_mount4: frees the sbi, for one, which gets referenced later in the failed mount paths - I haven't worked that out yet. https://bugzilla.kernel.org/show_bug.cgi?id=30872 Reported-by: Eugene A. Shatokhin <dame_eugene@mail.ru> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/mballoc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 2f6f0dd08fca..cdc84953f1d4 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2386,7 +2386,7 @@ static int ext4_mb_init_backend(struct super_block *sb) /* An 8TB filesystem with 64-bit pointers requires a 4096 byte * kmalloc. A 128kb malloc should suffice for a 256TB filesystem. * So a two level scheme suffices for now. */ - sbi->s_group_info = kmalloc(array_size, GFP_KERNEL); + sbi->s_group_info = kzalloc(array_size, GFP_KERNEL); if (sbi->s_group_info == NULL) { printk(KERN_ERR "EXT4-fs: can't allocate buddy meta group\n"); return -ENOMEM; -- cgit v1.2.3 From 0562e0bad483d10e9651fbb8f21dc3d0bad57374 Mon Sep 17 00:00:00 2001 From: Jiaying Zhang <jiayingz@google.com> Date: Mon, 21 Mar 2011 21:38:05 -0400 Subject: ext4: add more tracepoints and use dev_t in the trace buffer - Add more ext4 tracepoints. - Change ext4 tracepoints to use dev_t field with MAJOR/MINOR macros so that we can save 4 bytes in the ring buffer on some platforms. - Add sync_mode to ext4_da_writepages, ext4_da_write_pages, and ext4_da_writepages_result tracepoints. Also remove for_reclaim field from ext4_da_writepages since it is usually not very useful. Signed-off-by: Jiaying Zhang <jiayingz@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/balloc.c | 3 + fs/ext4/extents.c | 13 +- fs/ext4/fsync.c | 14 +- fs/ext4/ialloc.c | 1 + fs/ext4/inode.c | 24 +- fs/ext4/namei.c | 3 + include/trace/events/ext4.h | 775 +++++++++++++++++++++++++++++++++----------- include/trace/events/jbd2.h | 78 ++--- 8 files changed, 658 insertions(+), 253 deletions(-) diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index adf96b822781..97b970e7dd13 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -21,6 +21,8 @@ #include "ext4_jbd2.h" #include "mballoc.h" +#include <trace/events/ext4.h> + /* * balloc.c contains the blocks allocation and deallocation routines */ @@ -342,6 +344,7 @@ ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group) * We do it here so the bitmap uptodate bit * get set with buffer lock held. */ + trace_ext4_read_block_bitmap_load(sb, block_group); set_bitmap_uptodate(bh); if (bh_submit_read(bh) < 0) { put_bh(bh); diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 9ea1bc64ca6d..f46f6e3c02d7 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -44,6 +44,8 @@ #include "ext4_jbd2.h" #include "ext4_extents.h" +#include <trace/events/ext4.h> + static int ext4_ext_truncate_extend_restart(handle_t *handle, struct inode *inode, int needed) @@ -664,6 +666,8 @@ ext4_ext_find_extent(struct inode *inode, ext4_lblk_t block, if (unlikely(!bh)) goto err; if (!bh_uptodate_or_lock(bh)) { + trace_ext4_ext_load_extent(inode, block, + path[ppos].p_block); if (bh_submit_read(bh) < 0) { put_bh(bh); goto err; @@ -3297,7 +3301,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, struct ext4_ext_path *path = NULL; struct ext4_extent_header *eh; struct ext4_extent newex, *ex; - ext4_fsblk_t newblock; + ext4_fsblk_t newblock = 0; int err = 0, depth, ret; unsigned int allocated = 0; struct ext4_allocation_request ar; @@ -3305,6 +3309,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, ext_debug("blocks %u/%u requested for inode %lu\n", map->m_lblk, map->m_len, inode->i_ino); + trace_ext4_ext_map_blocks_enter(inode, map->m_lblk, map->m_len, flags); /* check in cache */ if (ext4_ext_in_cache(inode, map->m_lblk, &newex)) { @@ -3525,6 +3530,8 @@ out2: ext4_ext_drop_refs(path); kfree(path); } + trace_ext4_ext_map_blocks_exit(inode, map->m_lblk, + newblock, map->m_len, err ? err : allocated); return err ? err : allocated; } @@ -3658,6 +3665,7 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len) if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) return -EOPNOTSUPP; + trace_ext4_fallocate_enter(inode, offset, len, mode); map.m_lblk = offset >> blkbits; /* * We can't just convert len to max_blocks because @@ -3673,6 +3681,7 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len) ret = inode_newsize_ok(inode, (len + offset)); if (ret) { mutex_unlock(&inode->i_mutex); + trace_ext4_fallocate_exit(inode, offset, max_blocks, ret); return ret; } retry: @@ -3717,6 +3726,8 @@ retry: goto retry; } mutex_unlock(&inode->i_mutex); + trace_ext4_fallocate_exit(inode, offset, max_blocks, + ret > 0 ? ret2 : ret); return ret > 0 ? ret2 : ret; } diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c index 7829b287822a..7f74019d6d77 100644 --- a/fs/ext4/fsync.c +++ b/fs/ext4/fsync.c @@ -164,20 +164,20 @@ int ext4_sync_file(struct file *file, int datasync) J_ASSERT(ext4_journal_current_handle() == NULL); - trace_ext4_sync_file(file, datasync); + trace_ext4_sync_file_enter(file, datasync); if (inode->i_sb->s_flags & MS_RDONLY) return 0; ret = ext4_flush_completed_IO(inode); if (ret < 0) - return ret; + goto out; if (!journal) { ret = generic_file_fsync(file, datasync); if (!ret && !list_empty(&inode->i_dentry)) ext4_sync_parent(inode); - return ret; + goto out; } /* @@ -194,8 +194,10 @@ int ext4_sync_file(struct file *file, int datasync) * (they were dirtied by commit). But that's OK - the blocks are * safe in-journal, which is all fsync() needs to ensure. */ - if (ext4_should_journal_data(inode)) - return ext4_force_commit(inode->i_sb); + if (ext4_should_journal_data(inode)) { + ret = ext4_force_commit(inode->i_sb); + goto out; + } commit_tid = datasync ? ei->i_datasync_tid : ei->i_sync_tid; if (jbd2_log_start_commit(journal, commit_tid)) { @@ -215,5 +217,7 @@ int ext4_sync_file(struct file *file, int datasync) ret = jbd2_log_wait_commit(journal, commit_tid); } else if (journal->j_flags & JBD2_BARRIER) blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL); + out: + trace_ext4_sync_file_exit(inode, ret); return ret; } diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index a679a482c986..254e6b98b5b4 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -152,6 +152,7 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group) * We do it here so the bitmap uptodate bit * get set with buffer lock held. */ + trace_ext4_load_inode_bitmap(sb, block_group); set_bitmap_uptodate(bh); if (bh_submit_read(bh) < 0) { put_bh(bh); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index fc8c0ce84315..f44307a21136 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -973,6 +973,7 @@ static int ext4_ind_map_blocks(handle_t *handle, struct inode *inode, int count = 0; ext4_fsblk_t first_block = 0; + trace_ext4_ind_map_blocks_enter(inode, map->m_lblk, map->m_len, flags); J_ASSERT(!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))); J_ASSERT(handle != NULL || (flags & EXT4_GET_BLOCKS_CREATE) == 0); depth = ext4_block_to_path(inode, map->m_lblk, offsets, @@ -1058,6 +1059,8 @@ cleanup: partial--; } out: + trace_ext4_ind_map_blocks_exit(inode, map->m_lblk, + map->m_pblk, map->m_len, err); return err; } @@ -3379,6 +3382,7 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block) static int ext4_readpage(struct file *file, struct page *page) { + trace_ext4_readpage(page); return mpage_readpage(page, ext4_get_block); } @@ -3413,6 +3417,8 @@ static void ext4_invalidatepage(struct page *page, unsigned long offset) { journal_t *journal = EXT4_JOURNAL(page->mapping->host); + trace_ext4_invalidatepage(page, offset); + /* * free any io_end structure allocated for buffers to be discarded */ @@ -3434,6 +3440,8 @@ static int ext4_releasepage(struct page *page, gfp_t wait) { journal_t *journal = EXT4_JOURNAL(page->mapping->host); + trace_ext4_releasepage(page); + WARN_ON(PageChecked(page)); if (!page_has_buffers(page)) return 0; @@ -3792,11 +3800,16 @@ static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb, { struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; + ssize_t ret; + trace_ext4_direct_IO_enter(inode, offset, iov_length(iov, nr_segs), rw); if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) - return ext4_ext_direct_IO(rw, iocb, iov, offset, nr_segs); - - return ext4_ind_direct_IO(rw, iocb, iov, offset, nr_segs); + ret = ext4_ext_direct_IO(rw, iocb, iov, offset, nr_segs); + else + ret = ext4_ind_direct_IO(rw, iocb, iov, offset, nr_segs); + trace_ext4_direct_IO_exit(inode, offset, + iov_length(iov, nr_segs), rw, ret); + return ret; } /* @@ -4425,6 +4438,8 @@ void ext4_truncate(struct inode *inode) ext4_lblk_t last_block; unsigned blocksize = inode->i_sb->s_blocksize; + trace_ext4_truncate_enter(inode); + if (!ext4_can_truncate(inode)) return; @@ -4435,6 +4450,7 @@ void ext4_truncate(struct inode *inode) if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) { ext4_ext_truncate(inode); + trace_ext4_truncate_exit(inode); return; } @@ -4564,6 +4580,7 @@ out_stop: ext4_orphan_del(handle, inode); ext4_journal_stop(handle); + trace_ext4_truncate_exit(inode); } /* @@ -4695,6 +4712,7 @@ make_io: * has in-inode xattrs, or we don't have this inode in memory. * Read the block from disk. */ + trace_ext4_load_inode(inode); get_bh(bh); bh->b_end_io = end_buffer_read_sync; submit_bh(READ_META, bh); diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index ad87584aa8d2..f9f83878843a 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -40,6 +40,7 @@ #include "xattr.h" #include "acl.h" +#include <trace/events/ext4.h> /* * define how far ahead to read directories while searching them. */ @@ -2183,6 +2184,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry) struct ext4_dir_entry_2 *de; handle_t *handle; + trace_ext4_unlink_enter(dir, dentry); /* Initialize quotas before so that eventual writes go * in separate transaction */ dquot_initialize(dir); @@ -2228,6 +2230,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry) end_unlink: ext4_journal_stop(handle); brelse(bh); + trace_ext4_unlink_exit(dentry, retval); return retval; } diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index e5e345fb2a5c..e09592d2f916 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -21,8 +21,7 @@ TRACE_EVENT(ext4_free_inode, TP_ARGS(inode), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( umode_t, mode ) __field( uid_t, uid ) @@ -31,8 +30,7 @@ TRACE_EVENT(ext4_free_inode, ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->mode = inode->i_mode; __entry->uid = inode->i_uid; @@ -41,9 +39,9 @@ TRACE_EVENT(ext4_free_inode, ), TP_printk("dev %d,%d ino %lu mode 0%o uid %u gid %u blocks %llu", - __entry->dev_major, __entry->dev_minor, - (unsigned long) __entry->ino, __entry->mode, - __entry->uid, __entry->gid, + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->mode, __entry->uid, __entry->gid, (unsigned long long) __entry->blocks) ); @@ -53,21 +51,19 @@ TRACE_EVENT(ext4_request_inode, TP_ARGS(dir, mode), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, dir ) __field( umode_t, mode ) ), TP_fast_assign( - __entry->dev_major = MAJOR(dir->i_sb->s_dev); - __entry->dev_minor = MINOR(dir->i_sb->s_dev); + __entry->dev = dir->i_sb->s_dev; __entry->dir = dir->i_ino; __entry->mode = mode; ), TP_printk("dev %d,%d dir %lu mode 0%o", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->dir, __entry->mode) ); @@ -77,23 +73,21 @@ TRACE_EVENT(ext4_allocate_inode, TP_ARGS(inode, dir, mode), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( ino_t, dir ) __field( umode_t, mode ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->dir = dir->i_ino; __entry->mode = mode; ), TP_printk("dev %d,%d ino %lu dir %lu mode 0%o", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, (unsigned long) __entry->dir, __entry->mode) ); @@ -104,21 +98,19 @@ TRACE_EVENT(ext4_evict_inode, TP_ARGS(inode), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( int, nlink ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->nlink = inode->i_nlink; ), TP_printk("dev %d,%d ino %lu nlink %d", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->nlink) ); @@ -128,21 +120,19 @@ TRACE_EVENT(ext4_drop_inode, TP_ARGS(inode, drop), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( int, drop ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->drop = drop; ), TP_printk("dev %d,%d ino %lu drop %d", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->drop) ); @@ -152,21 +142,19 @@ TRACE_EVENT(ext4_mark_inode_dirty, TP_ARGS(inode, IP), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field(unsigned long, ip ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->ip = IP; ), TP_printk("dev %d,%d ino %lu caller %pF", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, (void *)__entry->ip) ); @@ -176,21 +164,19 @@ TRACE_EVENT(ext4_begin_ordered_truncate, TP_ARGS(inode, new_size), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( loff_t, new_size ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->new_size = new_size; ), TP_printk("dev %d,%d ino %lu new_size %lld", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, (long long) __entry->new_size) ); @@ -203,8 +189,7 @@ DECLARE_EVENT_CLASS(ext4__write_begin, TP_ARGS(inode, pos, len, flags), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( loff_t, pos ) __field( unsigned int, len ) @@ -212,8 +197,7 @@ DECLARE_EVENT_CLASS(ext4__write_begin, ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->pos = pos; __entry->len = len; @@ -221,7 +205,7 @@ DECLARE_EVENT_CLASS(ext4__write_begin, ), TP_printk("dev %d,%d ino %lu pos %llu len %u flags %u", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->pos, __entry->len, __entry->flags) ); @@ -249,8 +233,7 @@ DECLARE_EVENT_CLASS(ext4__write_end, TP_ARGS(inode, pos, len, copied), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( loff_t, pos ) __field( unsigned int, len ) @@ -258,8 +241,7 @@ DECLARE_EVENT_CLASS(ext4__write_end, ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->pos = pos; __entry->len = len; @@ -267,9 +249,9 @@ DECLARE_EVENT_CLASS(ext4__write_end, ), TP_printk("dev %d,%d ino %lu pos %llu len %u copied %u", - __entry->dev_major, __entry->dev_minor, - (unsigned long) __entry->ino, __entry->pos, - __entry->len, __entry->copied) + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->pos, __entry->len, __entry->copied) ); DEFINE_EVENT(ext4__write_end, ext4_ordered_write_end, @@ -310,22 +292,20 @@ TRACE_EVENT(ext4_writepage, TP_ARGS(inode, page), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( pgoff_t, index ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->index = page->index; ), TP_printk("dev %d,%d ino %lu page_index %lu", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->index) ); @@ -335,43 +315,39 @@ TRACE_EVENT(ext4_da_writepages, TP_ARGS(inode, wbc), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( long, nr_to_write ) __field( long, pages_skipped ) __field( loff_t, range_start ) __field( loff_t, range_end ) + __field( int, sync_mode ) __field( char, for_kupdate ) - __field( char, for_reclaim ) __field( char, range_cyclic ) __field( pgoff_t, writeback_index ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->nr_to_write = wbc->nr_to_write; __entry->pages_skipped = wbc->pages_skipped; __entry->range_start = wbc->range_start; __entry->range_end = wbc->range_end; + __entry->sync_mode = wbc->sync_mode; __entry->for_kupdate = wbc->for_kupdate; - __entry->for_reclaim = wbc->for_reclaim; __entry->range_cyclic = wbc->range_cyclic; __entry->writeback_index = inode->i_mapping->writeback_index; ), TP_printk("dev %d,%d ino %lu nr_to_write %ld pages_skipped %ld " - "range_start %llu range_end %llu " - "for_kupdate %d for_reclaim %d " - "range_cyclic %d writeback_index %lu", - __entry->dev_major, __entry->dev_minor, + "range_start %llu range_end %llu sync_mode %d" + "for_kupdate %d range_cyclic %d writeback_index %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->nr_to_write, __entry->pages_skipped, __entry->range_start, - __entry->range_end, - __entry->for_kupdate, __entry->for_reclaim, - __entry->range_cyclic, + __entry->range_end, __entry->sync_mode, + __entry->for_kupdate, __entry->range_cyclic, (unsigned long) __entry->writeback_index) ); @@ -381,8 +357,7 @@ TRACE_EVENT(ext4_da_write_pages, TP_ARGS(inode, mpd), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( __u64, b_blocknr ) __field( __u32, b_size ) @@ -390,11 +365,11 @@ TRACE_EVENT(ext4_da_write_pages, __field( unsigned long, first_page ) __field( int, io_done ) __field( int, pages_written ) + __field( int, sync_mode ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->b_blocknr = mpd->b_blocknr; __entry->b_size = mpd->b_size; @@ -402,14 +377,18 @@ TRACE_EVENT(ext4_da_write_pages, __entry->first_page = mpd->first_page; __entry->io_done = mpd->io_done; __entry->pages_written = mpd->pages_written; + __entry->sync_mode = mpd->wbc->sync_mode; ), - TP_printk("dev %d,%d ino %lu b_blocknr %llu b_size %u b_state 0x%04x first_page %lu io_done %d pages_written %d", - __entry->dev_major, __entry->dev_minor, + TP_printk("dev %d,%d ino %lu b_blocknr %llu b_size %u b_state 0x%04x " + "first_page %lu io_done %d pages_written %d sync_mode %d", + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->b_blocknr, __entry->b_size, __entry->b_state, __entry->first_page, - __entry->io_done, __entry->pages_written) + __entry->io_done, __entry->pages_written, + __entry->sync_mode + ) ); TRACE_EVENT(ext4_da_writepages_result, @@ -419,35 +398,100 @@ TRACE_EVENT(ext4_da_writepages_result, TP_ARGS(inode, wbc, ret, pages_written), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( int, ret ) __field( int, pages_written ) __field( long, pages_skipped ) + __field( int, sync_mode ) __field( char, more_io ) __field( pgoff_t, writeback_index ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->ret = ret; __entry->pages_written = pages_written; __entry->pages_skipped = wbc->pages_skipped; + __entry->sync_mode = wbc->sync_mode; __entry->more_io = wbc->more_io; __entry->writeback_index = inode->i_mapping->writeback_index; ), - TP_printk("dev %d,%d ino %lu ret %d pages_written %d pages_skipped %ld more_io %d writeback_index %lu", - __entry->dev_major, __entry->dev_minor, + TP_printk("dev %d,%d ino %lu ret %d pages_written %d pages_skipped %ld " + " more_io %d sync_mode %d writeback_index %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->ret, __entry->pages_written, __entry->pages_skipped, - __entry->more_io, + __entry->more_io, __entry->sync_mode, (unsigned long) __entry->writeback_index) ); +DECLARE_EVENT_CLASS(ext4__page_op, + TP_PROTO(struct page *page), + + TP_ARGS(page), + + TP_STRUCT__entry( + __field( pgoff_t, index ) + __field( ino_t, ino ) + __field( dev_t, dev ) + + ), + + TP_fast_assign( + __entry->index = page->index; + __entry->ino = page->mapping->host->i_ino; + __entry->dev = page->mapping->host->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %lu page_index %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->index) +); + +DEFINE_EVENT(ext4__page_op, ext4_readpage, + + TP_PROTO(struct page *page), + + TP_ARGS(page) +); + +DEFINE_EVENT(ext4__page_op, ext4_releasepage, + + TP_PROTO(struct page *page), + + TP_ARGS(page) +); + +TRACE_EVENT(ext4_invalidatepage, + TP_PROTO(struct page *page, unsigned long offset), + + TP_ARGS(page, offset), + + TP_STRUCT__entry( + __field( pgoff_t, index ) + __field( unsigned long, offset ) + __field( ino_t, ino ) + __field( dev_t, dev ) + + ), + + TP_fast_assign( + __entry->index = page->index; + __entry->offset = offset; + __entry->ino = page->mapping->host->i_ino; + __entry->dev = page->mapping->host->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %lu page_index %lu offset %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->index, __entry->offset) +); + TRACE_EVENT(ext4_discard_blocks, TP_PROTO(struct super_block *sb, unsigned long long blk, unsigned long long count), @@ -455,22 +499,20 @@ TRACE_EVENT(ext4_discard_blocks, TP_ARGS(sb, blk, count), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( __u64, blk ) __field( __u64, count ) ), TP_fast_assign( - __entry->dev_major = MAJOR(sb->s_dev); - __entry->dev_minor = MINOR(sb->s_dev); + __entry->dev = sb->s_dev; __entry->blk = blk; __entry->count = count; ), TP_printk("dev %d,%d blk %llu count %llu", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->blk, __entry->count) ); @@ -481,8 +523,7 @@ DECLARE_EVENT_CLASS(ext4__mb_new_pa, TP_ARGS(ac, pa), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( __u64, pa_pstart ) __field( __u32, pa_len ) @@ -491,8 +532,7 @@ DECLARE_EVENT_CLASS(ext4__mb_new_pa, ), TP_fast_assign( - __entry->dev_major = MAJOR(ac->ac_sb->s_dev); - __entry->dev_minor = MINOR(ac->ac_sb->s_dev); + __entry->dev = ac->ac_sb->s_dev; __entry->ino = ac->ac_inode->i_ino; __entry->pa_pstart = pa->pa_pstart; __entry->pa_len = pa->pa_len; @@ -500,9 +540,9 @@ DECLARE_EVENT_CLASS(ext4__mb_new_pa, ), TP_printk("dev %d,%d ino %lu pstart %llu len %u lstart %llu", - __entry->dev_major, __entry->dev_minor, - (unsigned long) __entry->ino, __entry->pa_pstart, - __entry->pa_len, __entry->pa_lstart) + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->pa_pstart, __entry->pa_len, __entry->pa_lstart) ); DEFINE_EVENT(ext4__mb_new_pa, ext4_mb_new_inode_pa, @@ -530,8 +570,7 @@ TRACE_EVENT(ext4_mb_release_inode_pa, TP_ARGS(sb, inode, pa, block, count), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( __u64, block ) __field( __u32, count ) @@ -539,16 +578,16 @@ TRACE_EVENT(ext4_mb_release_inode_pa, ), TP_fast_assign( - __entry->dev_major = MAJOR(sb->s_dev); - __entry->dev_minor = MINOR(sb->s_dev); + __entry->dev = sb->s_dev; __entry->ino = inode->i_ino; __entry->block = block; __entry->count = count; ), TP_printk("dev %d,%d ino %lu block %llu count %u", - __entry->dev_major, __entry->dev_minor, - (unsigned long) __entry->ino, __entry->block, __entry->count) + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->block, __entry->count) ); TRACE_EVENT(ext4_mb_release_group_pa, @@ -558,22 +597,20 @@ TRACE_EVENT(ext4_mb_release_group_pa, TP_ARGS(sb, pa), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( __u64, pa_pstart ) __field( __u32, pa_len ) ), TP_fast_assign( - __entry->dev_major = MAJOR(sb->s_dev); - __entry->dev_minor = MINOR(sb->s_dev); + __entry->dev = sb->s_dev; __entry->pa_pstart = pa->pa_pstart; __entry->pa_len = pa->pa_len; ), TP_printk("dev %d,%d pstart %llu len %u", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->pa_pstart, __entry->pa_len) ); @@ -583,20 +620,18 @@ TRACE_EVENT(ext4_discard_preallocations, TP_ARGS(inode), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; ), TP_printk("dev %d,%d ino %lu", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino) ); @@ -606,20 +641,19 @@ TRACE_EVENT(ext4_mb_discard_preallocations, TP_ARGS(sb, needed), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( int, needed ) ), TP_fast_assign( - __entry->dev_major = MAJOR(sb->s_dev); - __entry->dev_minor = MINOR(sb->s_dev); + __entry->dev = sb->s_dev; __entry->needed = needed; ), TP_printk("dev %d,%d needed %d", - __entry->dev_major, __entry->dev_minor, __entry->needed) + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->needed) ); TRACE_EVENT(ext4_request_blocks, @@ -628,8 +662,7 @@ TRACE_EVENT(ext4_request_blocks, TP_ARGS(ar), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( unsigned int, flags ) __field( unsigned int, len ) @@ -642,8 +675,7 @@ TRACE_EVENT(ext4_request_blocks, ), TP_fast_assign( - __entry->dev_major = MAJOR(ar->inode->i_sb->s_dev); - __entry->dev_minor = MINOR(ar->inode->i_sb->s_dev); + __entry->dev = ar->inode->i_sb->s_dev; __entry->ino = ar->inode->i_ino; __entry->flags = ar->flags; __entry->len = ar->len; @@ -655,8 +687,9 @@ TRACE_EVENT(ext4_request_blocks, __entry->pright = ar->pright; ), - TP_printk("dev %d,%d ino %lu flags %u len %u lblk %llu goal %llu lleft %llu lright %llu pleft %llu pright %llu ", - __entry->dev_major, __entry->dev_minor, + TP_printk("dev %d,%d ino %lu flags %u len %u lblk %llu goal %llu " + "lleft %llu lright %llu pleft %llu pright %llu ", + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->flags, __entry->len, (unsigned long long) __entry->logical, @@ -673,8 +706,7 @@ TRACE_EVENT(ext4_allocate_blocks, TP_ARGS(ar, block), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( __u64, block ) __field( unsigned int, flags ) @@ -688,8 +720,7 @@ TRACE_EVENT(ext4_allocate_blocks, ), TP_fast_assign( - __entry->dev_major = MAJOR(ar->inode->i_sb->s_dev); - __entry->dev_minor = MINOR(ar->inode->i_sb->s_dev); + __entry->dev = ar->inode->i_sb->s_dev; __entry->ino = ar->inode->i_ino; __entry->block = block; __entry->flags = ar->flags; @@ -702,10 +733,11 @@ TRACE_EVENT(ext4_allocate_blocks, __entry->pright = ar->pright; ), - TP_printk("dev %d,%d ino %lu flags %u len %u block %llu lblk %llu goal %llu lleft %llu lright %llu pleft %llu pright %llu ", - __entry->dev_major, __entry->dev_minor, - (unsigned long) __entry->ino, __entry->flags, - __entry->len, __entry->block, + TP_printk("dev %d,%d ino %lu flags %u len %u block %llu lblk %llu " + "goal %llu lleft %llu lright %llu pleft %llu pright %llu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->flags, __entry->len, __entry->block, (unsigned long long) __entry->logical, (unsigned long long) __entry->goal, (unsigned long long) __entry->lleft, @@ -721,8 +753,7 @@ TRACE_EVENT(ext4_free_blocks, TP_ARGS(inode, block, count, flags), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( umode_t, mode ) __field( __u64, block ) @@ -731,8 +762,7 @@ TRACE_EVENT(ext4_free_blocks, ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->mode = inode->i_mode; __entry->block = block; @@ -741,20 +771,19 @@ TRACE_EVENT(ext4_free_blocks, ), TP_printk("dev %d,%d ino %lu mode 0%o block %llu count %lu flags %d", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->mode, __entry->block, __entry->count, __entry->flags) ); -TRACE_EVENT(ext4_sync_file, +TRACE_EVENT(ext4_sync_file_enter, TP_PROTO(struct file *file, int datasync), TP_ARGS(file, datasync), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( ino_t, parent ) __field( int, datasync ) @@ -763,39 +792,60 @@ TRACE_EVENT(ext4_sync_file, TP_fast_assign( struct dentry *dentry = file->f_path.dentry; - __entry->dev_major = MAJOR(dentry->d_inode->i_sb->s_dev); - __entry->dev_minor = MINOR(dentry->d_inode->i_sb->s_dev); + __entry->dev = dentry->d_inode->i_sb->s_dev; __entry->ino = dentry->d_inode->i_ino; __entry->datasync = datasync; __entry->parent = dentry->d_parent->d_inode->i_ino; ), TP_printk("dev %d,%d ino %ld parent %ld datasync %d ", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, (unsigned long) __entry->parent, __entry->datasync) ); +TRACE_EVENT(ext4_sync_file_exit, + TP_PROTO(struct inode *inode, int ret), + + TP_ARGS(inode, ret), + + TP_STRUCT__entry( + __field( int, ret ) + __field( ino_t, ino ) + __field( dev_t, dev ) + ), + + TP_fast_assign( + __entry->ret = ret; + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %ld ret %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->ret) +); + TRACE_EVENT(ext4_sync_fs, TP_PROTO(struct super_block *sb, int wait), TP_ARGS(sb, wait), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( int, wait ) ), TP_fast_assign( - __entry->dev_major = MAJOR(sb->s_dev); - __entry->dev_minor = MINOR(sb->s_dev); + __entry->dev = sb->s_dev; __entry->wait = wait; ), - TP_printk("dev %d,%d wait %d", __entry->dev_major, - __entry->dev_minor, __entry->wait) + TP_printk("dev %d,%d wait %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->wait) ); TRACE_EVENT(ext4_alloc_da_blocks, @@ -804,23 +854,21 @@ TRACE_EVENT(ext4_alloc_da_blocks, TP_ARGS(inode), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( unsigned int, data_blocks ) __field( unsigned int, meta_blocks ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->data_blocks = EXT4_I(inode)->i_reserved_data_blocks; __entry->meta_blocks = EXT4_I(inode)->i_reserved_meta_blocks; ), TP_printk("dev %d,%d ino %lu data_blocks %u meta_blocks %u", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->data_blocks, __entry->meta_blocks) ); @@ -831,8 +879,7 @@ TRACE_EVENT(ext4_mballoc_alloc, TP_ARGS(ac), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( __u16, found ) __field( __u16, groups ) @@ -855,8 +902,7 @@ TRACE_EVENT(ext4_mballoc_alloc, ), TP_fast_assign( - __entry->dev_major = MAJOR(ac->ac_inode->i_sb->s_dev); - __entry->dev_minor = MINOR(ac->ac_inode->i_sb->s_dev); + __entry->dev = ac->ac_inode->i_sb->s_dev; __entry->ino = ac->ac_inode->i_ino; __entry->found = ac->ac_found; __entry->flags = ac->ac_flags; @@ -881,7 +927,7 @@ TRACE_EVENT(ext4_mballoc_alloc, TP_printk("dev %d,%d inode %lu orig %u/%d/%u@%u goal %u/%d/%u@%u " "result %u/%d/%u@%u blks %u grps %u cr %u flags 0x%04x " "tail %u broken %u", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->orig_group, __entry->orig_start, __entry->orig_len, __entry->orig_logical, @@ -900,8 +946,7 @@ TRACE_EVENT(ext4_mballoc_prealloc, TP_ARGS(ac), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( __u32, orig_logical ) __field( int, orig_start ) @@ -914,8 +959,7 @@ TRACE_EVENT(ext4_mballoc_prealloc, ), TP_fast_assign( - __entry->dev_major = MAJOR(ac->ac_inode->i_sb->s_dev); - __entry->dev_minor = MINOR(ac->ac_inode->i_sb->s_dev); + __entry->dev = ac->ac_inode->i_sb->s_dev; __entry->ino = ac->ac_inode->i_ino; __entry->orig_logical = ac->ac_o_ex.fe_logical; __entry->orig_start = ac->ac_o_ex.fe_start; @@ -928,7 +972,7 @@ TRACE_EVENT(ext4_mballoc_prealloc, ), TP_printk("dev %d,%d inode %lu orig %u/%d/%u@%u result %u/%d/%u@%u", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->orig_group, __entry->orig_start, __entry->orig_len, __entry->orig_logical, @@ -946,8 +990,7 @@ DECLARE_EVENT_CLASS(ext4__mballoc, TP_ARGS(sb, inode, group, start, len), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( int, result_start ) __field( __u32, result_group ) @@ -955,8 +998,7 @@ DECLARE_EVENT_CLASS(ext4__mballoc, ), TP_fast_assign( - __entry->dev_major = MAJOR(sb->s_dev); - __entry->dev_minor = MINOR(sb->s_dev); + __entry->dev = sb->s_dev; __entry->ino = inode ? inode->i_ino : 0; __entry->result_start = start; __entry->result_group = group; @@ -964,7 +1006,7 @@ DECLARE_EVENT_CLASS(ext4__mballoc, ), TP_printk("dev %d,%d inode %lu extent %u/%d/%u ", - __entry->dev_major, __entry->dev_minor, + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->result_group, __entry->result_start, __entry->result_len) @@ -998,8 +1040,7 @@ TRACE_EVENT(ext4_forget, TP_ARGS(inode, is_metadata, block), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( umode_t, mode ) __field( int, is_metadata ) @@ -1007,8 +1048,7 @@ TRACE_EVENT(ext4_forget, ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->mode = inode->i_mode; __entry->is_metadata = is_metadata; @@ -1016,9 +1056,9 @@ TRACE_EVENT(ext4_forget, ), TP_printk("dev %d,%d ino %lu mode 0%o is_metadata %d block %llu", - __entry->dev_major, __entry->dev_minor, - (unsigned long) __entry->ino, __entry->mode, - __entry->is_metadata, __entry->block) + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->mode, __entry->is_metadata, __entry->block) ); TRACE_EVENT(ext4_da_update_reserve_space, @@ -1027,8 +1067,7 @@ TRACE_EVENT(ext4_da_update_reserve_space, TP_ARGS(inode, used_blocks), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( umode_t, mode ) __field( __u64, i_blocks ) @@ -1039,8 +1078,7 @@ TRACE_EVENT(ext4_da_update_reserve_space, ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->mode = inode->i_mode; __entry->i_blocks = inode->i_blocks; @@ -1050,10 +1088,12 @@ TRACE_EVENT(ext4_da_update_reserve_space, __entry->allocated_meta_blocks = EXT4_I(inode)->i_allocated_meta_blocks; ), - TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu used_blocks %d reserved_data_blocks %d reserved_meta_blocks %d allocated_meta_blocks %d", - __entry->dev_major, __entry->dev_minor, - (unsigned long) __entry->ino, __entry->mode, - (unsigned long long) __entry->i_blocks, + TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu used_blocks %d " + "reserved_data_blocks %d reserved_meta_blocks %d " + "allocated_meta_blocks %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->mode, (unsigned long long) __entry->i_blocks, __entry->used_blocks, __entry->reserved_data_blocks, __entry->reserved_meta_blocks, __entry->allocated_meta_blocks) ); @@ -1064,8 +1104,7 @@ TRACE_EVENT(ext4_da_reserve_space, TP_ARGS(inode, md_needed), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( umode_t, mode ) __field( __u64, i_blocks ) @@ -1075,8 +1114,7 @@ TRACE_EVENT(ext4_da_reserve_space, ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->mode = inode->i_mode; __entry->i_blocks = inode->i_blocks; @@ -1085,8 +1123,9 @@ TRACE_EVENT(ext4_da_reserve_space, __entry->reserved_meta_blocks = EXT4_I(inode)->i_reserved_meta_blocks; ), - TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu md_needed %d reserved_data_blocks %d reserved_meta_blocks %d", - __entry->dev_major, __entry->dev_minor, + TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu md_needed %d " + "reserved_data_blocks %d reserved_meta_blocks %d", + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->mode, (unsigned long long) __entry->i_blocks, __entry->md_needed, __entry->reserved_data_blocks, @@ -1099,8 +1138,7 @@ TRACE_EVENT(ext4_da_release_space, TP_ARGS(inode, freed_blocks), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) __field( umode_t, mode ) __field( __u64, i_blocks ) @@ -1111,8 +1149,7 @@ TRACE_EVENT(ext4_da_release_space, ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; __entry->mode = inode->i_mode; __entry->i_blocks = inode->i_blocks; @@ -1122,8 +1159,10 @@ TRACE_EVENT(ext4_da_release_space, __entry->allocated_meta_blocks = EXT4_I(inode)->i_allocated_meta_blocks; ), - TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu freed_blocks %d reserved_data_blocks %d reserved_meta_blocks %d allocated_meta_blocks %d", - __entry->dev_major, __entry->dev_minor, + TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu freed_blocks %d " + "reserved_data_blocks %d reserved_meta_blocks %d " + "allocated_meta_blocks %d", + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->mode, (unsigned long long) __entry->i_blocks, __entry->freed_blocks, __entry->reserved_data_blocks, @@ -1136,20 +1175,19 @@ DECLARE_EVENT_CLASS(ext4__bitmap_load, TP_ARGS(sb, group), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( __u32, group ) ), TP_fast_assign( - __entry->dev_major = MAJOR(sb->s_dev); - __entry->dev_minor = MINOR(sb->s_dev); + __entry->dev = sb->s_dev; __entry->group = group; ), TP_printk("dev %d,%d group %u", - __entry->dev_major, __entry->dev_minor, __entry->group) + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->group) ); DEFINE_EVENT(ext4__bitmap_load, ext4_mb_bitmap_load, @@ -1166,6 +1204,349 @@ DEFINE_EVENT(ext4__bitmap_load, ext4_mb_buddy_bitmap_load, TP_ARGS(sb, group) ); +DEFINE_EVENT(ext4__bitmap_load, ext4_read_block_bitmap_load, + + TP_PROTO(struct super_block *sb, unsigned long group), + + TP_ARGS(sb, group) +); + +DEFINE_EVENT(ext4__bitmap_load, ext4_load_inode_bitmap, + + TP_PROTO(struct super_block *sb, unsigned long group), + + TP_ARGS(sb, group) +); + +TRACE_EVENT(ext4_direct_IO_enter, + TP_PROTO(struct inode *inode, loff_t offset, unsigned long len, int rw), + + TP_ARGS(inode, offset, len, rw), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( loff_t, pos ) + __field( unsigned long, len ) + __field( int, rw ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->pos = offset; + __entry->len = len; + __entry->rw = rw; + ), + + TP_printk("dev %d,%d ino %lu pos %llu len %lu rw %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long long) __entry->pos, __entry->len, __entry->rw) +); + +TRACE_EVENT(ext4_direct_IO_exit, + TP_PROTO(struct inode *inode, loff_t offset, unsigned long len, int rw, int ret), + + TP_ARGS(inode, offset, len, rw, ret), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( loff_t, pos ) + __field( unsigned long, len ) + __field( int, rw ) + __field( int, ret ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->pos = offset; + __entry->len = len; + __entry->rw = rw; + __entry->ret = ret; + ), + + TP_printk("dev %d,%d ino %lu pos %llu len %lu rw %d ret %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long long) __entry->pos, __entry->len, + __entry->rw, __entry->ret) +); + +TRACE_EVENT(ext4_fallocate_enter, + TP_PROTO(struct inode *inode, loff_t offset, loff_t len, int mode), + + TP_ARGS(inode, offset, len, mode), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( loff_t, pos ) + __field( loff_t, len ) + __field( int, mode ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->pos = offset; + __entry->len = len; + __entry->mode = mode; + ), + + TP_printk("dev %d,%d ino %ld pos %llu len %llu mode %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long long) __entry->pos, + (unsigned long long) __entry->len, __entry->mode) +); + +TRACE_EVENT(ext4_fallocate_exit, + TP_PROTO(struct inode *inode, loff_t offset, unsigned int max_blocks, int ret), + + TP_ARGS(inode, offset, max_blocks, ret), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( loff_t, pos ) + __field( unsigned, blocks ) + __field( int, ret ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->pos = offset; + __entry->blocks = max_blocks; + __entry->ret = ret; + ), + + TP_printk("dev %d,%d ino %ld pos %llu blocks %d ret %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long long) __entry->pos, __entry->blocks, + __entry->ret) +); + +TRACE_EVENT(ext4_unlink_enter, + TP_PROTO(struct inode *parent, struct dentry *dentry), + + TP_ARGS(parent, dentry), + + TP_STRUCT__entry( + __field( ino_t, parent ) + __field( ino_t, ino ) + __field( loff_t, size ) + __field( dev_t, dev ) + ), + + TP_fast_assign( + __entry->parent = parent->i_ino; + __entry->ino = dentry->d_inode->i_ino; + __entry->size = dentry->d_inode->i_size; + __entry->dev = dentry->d_inode->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %ld size %lld parent %ld", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, __entry->size, + (unsigned long) __entry->parent) +); + +TRACE_EVENT(ext4_unlink_exit, + TP_PROTO(struct dentry *dentry, int ret), + + TP_ARGS(dentry, ret), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( int, ret ) + ), + + TP_fast_assign( + __entry->ino = dentry->d_inode->i_ino; + __entry->dev = dentry->d_inode->i_sb->s_dev; + __entry->ret = ret; + ), + + TP_printk("dev %d,%d ino %ld ret %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->ret) +); + +DECLARE_EVENT_CLASS(ext4__truncate, + TP_PROTO(struct inode *inode), + + TP_ARGS(inode), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( blkcnt_t, blocks ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->blocks = inode->i_blocks; + ), + + TP_printk("dev %d,%d ino %lu blocks %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, (unsigned long) __entry->blocks) +); + +DEFINE_EVENT(ext4__truncate, ext4_truncate_enter, + + TP_PROTO(struct inode *inode), + + TP_ARGS(inode) +); + +DEFINE_EVENT(ext4__truncate, ext4_truncate_exit, + + TP_PROTO(struct inode *inode), + + TP_ARGS(inode) +); + +DECLARE_EVENT_CLASS(ext4__map_blocks_enter, + TP_PROTO(struct inode *inode, ext4_lblk_t lblk, + unsigned len, unsigned flags), + + TP_ARGS(inode, lblk, len, flags), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( ext4_lblk_t, lblk ) + __field( unsigned, len ) + __field( unsigned, flags ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->lblk = lblk; + __entry->len = len; + __entry->flags = flags; + ), + + TP_printk("dev %d,%d ino %lu lblk %u len %u flags %u", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned) __entry->lblk, __entry->len, __entry->flags) +); + +DEFINE_EVENT(ext4__map_blocks_enter, ext4_ext_map_blocks_enter, + TP_PROTO(struct inode *inode, ext4_lblk_t lblk, + unsigned len, unsigned flags), + + TP_ARGS(inode, lblk, len, flags) +); + +DEFINE_EVENT(ext4__map_blocks_enter, ext4_ind_map_blocks_enter, + TP_PROTO(struct inode *inode, ext4_lblk_t lblk, + unsigned len, unsigned flags), + + TP_ARGS(inode, lblk, len, flags) +); + +DECLARE_EVENT_CLASS(ext4__map_blocks_exit, + TP_PROTO(struct inode *inode, ext4_lblk_t lblk, + ext4_fsblk_t pblk, unsigned len, int ret), + + TP_ARGS(inode, lblk, pblk, len, ret), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( ext4_lblk_t, lblk ) + __field( ext4_fsblk_t, pblk ) + __field( unsigned, len ) + __field( int, ret ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->lblk = lblk; + __entry->pblk = pblk; + __entry->len = len; + __entry->ret = ret; + ), + + TP_printk("dev %d,%d ino %lu lblk %u pblk %llu len %u ret %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned) __entry->lblk, (unsigned long long) __entry->pblk, + __entry->len, __entry->ret) +); + +DEFINE_EVENT(ext4__map_blocks_exit, ext4_ext_map_blocks_exit, + TP_PROTO(struct inode *inode, ext4_lblk_t lblk, + ext4_fsblk_t pblk, unsigned len, int ret), + + TP_ARGS(inode, lblk, pblk, len, ret) +); + +DEFINE_EVENT(ext4__map_blocks_exit, ext4_ind_map_blocks_exit, + TP_PROTO(struct inode *inode, ext4_lblk_t lblk, + ext4_fsblk_t pblk, unsigned len, int ret), + + TP_ARGS(inode, lblk, pblk, len, ret) +); + +TRACE_EVENT(ext4_ext_load_extent, + TP_PROTO(struct inode *inode, ext4_lblk_t lblk, ext4_fsblk_t pblk), + + TP_ARGS(inode, lblk, pblk), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( ext4_lblk_t, lblk ) + __field( ext4_fsblk_t, pblk ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->lblk = lblk; + __entry->pblk = pblk; + ), + + TP_printk("dev %d,%d ino %lu lblk %u pblk %llu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned) __entry->lblk, (unsigned long long) __entry->pblk) +); + +TRACE_EVENT(ext4_load_inode, + TP_PROTO(struct inode *inode), + + TP_ARGS(inode), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %ld", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino) +); + #endif /* _TRACE_EXT4_H */ /* This part must be outside protection */ diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h index 7447ea9305b5..bf16545cc977 100644 --- a/include/trace/events/jbd2.h +++ b/include/trace/events/jbd2.h @@ -17,19 +17,17 @@ TRACE_EVENT(jbd2_checkpoint, TP_ARGS(journal, result), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( int, result ) ), TP_fast_assign( - __entry->dev_major = MAJOR(journal->j_fs_dev->bd_dev); - __entry->dev_minor = MINOR(journal->j_fs_dev->bd_dev); + __entry->dev = journal->j_fs_dev->bd_dev; __entry->result = result; ), - TP_printk("dev %d,%d result %d", - __entry->dev_major, __entry->dev_minor, __entry->result) + TP_printk("dev %s result %d", + jbd2_dev_to_name(__entry->dev), __entry->result) ); DECLARE_EVENT_CLASS(jbd2_commit, @@ -39,22 +37,20 @@ DECLARE_EVENT_CLASS(jbd2_commit, TP_ARGS(journal, commit_transaction), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( char, sync_commit ) __field( int, transaction ) ), TP_fast_assign( - __entry->dev_major = MAJOR(journal->j_fs_dev->bd_dev); - __entry->dev_minor = MINOR(journal->j_fs_dev->bd_dev); + __entry->dev = journal->j_fs_dev->bd_dev; __entry->sync_commit = commit_transaction->t_synchronous_commit; __entry->transaction = commit_transaction->t_tid; ), - TP_printk("dev %d,%d transaction %d sync %d", - __entry->dev_major, __entry->dev_minor, - __entry->transaction, __entry->sync_commit) + TP_printk("dev %s transaction %d sync %d", + jbd2_dev_to_name(__entry->dev), __entry->transaction, + __entry->sync_commit) ); DEFINE_EVENT(jbd2_commit, jbd2_start_commit, @@ -91,24 +87,22 @@ TRACE_EVENT(jbd2_end_commit, TP_ARGS(journal, commit_transaction), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( char, sync_commit ) __field( int, transaction ) __field( int, head ) ), TP_fast_assign( - __entry->dev_major = MAJOR(journal->j_fs_dev->bd_dev); - __entry->dev_minor = MINOR(journal->j_fs_dev->bd_dev); + __entry->dev = journal->j_fs_dev->bd_dev; __entry->sync_commit = commit_transaction->t_synchronous_commit; __entry->transaction = commit_transaction->t_tid; __entry->head = journal->j_tail_sequence; ), - TP_printk("dev %d,%d transaction %d sync %d head %d", - __entry->dev_major, __entry->dev_minor, - __entry->transaction, __entry->sync_commit, __entry->head) + TP_printk("dev %s transaction %d sync %d head %d", + jbd2_dev_to_name(__entry->dev), __entry->transaction, + __entry->sync_commit, __entry->head) ); TRACE_EVENT(jbd2_submit_inode_data, @@ -117,20 +111,17 @@ TRACE_EVENT(jbd2_submit_inode_data, TP_ARGS(inode), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( ino_t, ino ) ), TP_fast_assign( - __entry->dev_major = MAJOR(inode->i_sb->s_dev); - __entry->dev_minor = MINOR(inode->i_sb->s_dev); + __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; ), - TP_printk("dev %d,%d ino %lu", - __entry->dev_major, __entry->dev_minor, - (unsigned long) __entry->ino) + TP_printk("dev %s ino %lu", + jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino) ); TRACE_EVENT(jbd2_run_stats, @@ -140,8 +131,7 @@ TRACE_EVENT(jbd2_run_stats, TP_ARGS(dev, tid, stats), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( unsigned long, tid ) __field( unsigned long, wait ) __field( unsigned long, running ) @@ -154,8 +144,7 @@ TRACE_EVENT(jbd2_run_stats, ), TP_fast_assign( - __entry->dev_major = MAJOR(dev); - __entry->dev_minor = MINOR(dev); + __entry->dev = dev; __entry->tid = tid; __entry->wait = stats->rs_wait; __entry->running = stats->rs_running; @@ -167,9 +156,9 @@ TRACE_EVENT(jbd2_run_stats, __entry->blocks_logged = stats->rs_blocks_logged; ), - TP_printk("dev %d,%d tid %lu wait %u running %u locked %u flushing %u " + TP_printk("dev %s tid %lu wait %u running %u locked %u flushing %u " "logging %u handle_count %u blocks %u blocks_logged %u", - __entry->dev_major, __entry->dev_minor, __entry->tid, + jbd2_dev_to_name(__entry->dev), __entry->tid, jiffies_to_msecs(__entry->wait), jiffies_to_msecs(__entry->running), jiffies_to_msecs(__entry->locked), @@ -186,8 +175,7 @@ TRACE_EVENT(jbd2_checkpoint_stats, TP_ARGS(dev, tid, stats), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( unsigned long, tid ) __field( unsigned long, chp_time ) __field( __u32, forced_to_close ) @@ -196,8 +184,7 @@ TRACE_EVENT(jbd2_checkpoint_stats, ), TP_fast_assign( - __entry->dev_major = MAJOR(dev); - __entry->dev_minor = MINOR(dev); + __entry->dev = dev; __entry->tid = tid; __entry->chp_time = stats->cs_chp_time; __entry->forced_to_close= stats->cs_forced_to_close; @@ -205,9 +192,9 @@ TRACE_EVENT(jbd2_checkpoint_stats, __entry->dropped = stats->cs_dropped; ), - TP_printk("dev %d,%d tid %lu chp_time %u forced_to_close %u " + TP_printk("dev %s tid %lu chp_time %u forced_to_close %u " "written %u dropped %u", - __entry->dev_major, __entry->dev_minor, __entry->tid, + jbd2_dev_to_name(__entry->dev), __entry->tid, jiffies_to_msecs(__entry->chp_time), __entry->forced_to_close, __entry->written, __entry->dropped) ); @@ -220,8 +207,7 @@ TRACE_EVENT(jbd2_cleanup_journal_tail, TP_ARGS(journal, first_tid, block_nr, freed), TP_STRUCT__entry( - __field( int, dev_major ) - __field( int, dev_minor ) + __field( dev_t, dev ) __field( tid_t, tail_sequence ) __field( tid_t, first_tid ) __field(unsigned long, block_nr ) @@ -229,18 +215,16 @@ TRACE_EVENT(jbd2_cleanup_journal_tail, ), TP_fast_assign( - __entry->dev_major = MAJOR(journal->j_fs_dev->bd_dev); - __entry->dev_minor = MINOR(journal->j_fs_dev->bd_dev); + __entry->dev = journal->j_fs_dev->bd_dev; __entry->tail_sequence = journal->j_tail_sequence; __entry->first_tid = first_tid; __entry->block_nr = block_nr; __entry->freed = freed; ), - TP_printk("dev %d,%d from %u to %u offset %lu freed %lu", - __entry->dev_major, __entry->dev_minor, - __entry->tail_sequence, __entry->first_tid, - __entry->block_nr, __entry->freed) + TP_printk("dev %s from %u to %u offset %lu freed %lu", + jbd2_dev_to_name(__entry->dev), __entry->tail_sequence, + __entry->first_tid, __entry->block_nr, __entry->freed) ); #endif /* _TRACE_JBD2_H */ -- cgit v1.2.3 From 27660515a21bf913e3208ded3f27abd0529fae0e Mon Sep 17 00:00:00 2001 From: Michał Mirosław <mirq-linux@rere.qmqm.pl> Date: Fri, 18 Mar 2011 16:56:34 +0000 Subject: net: implement dev_disable_lro() hw_features compatibility MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Implement compatibility with new hw_features for dev_disable_lro(). This is a transition path - dev_disable_lro() should be later integrated into netdev_fix_features() after all drivers are converted. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net> --- include/linux/ethtool.h | 3 +++ net/core/dev.c | 19 +++++++++++-------- net/core/ethtool.c | 2 +- 3 files changed, 15 insertions(+), 9 deletions(-) diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index b297f288f6eb..ae757bcf1280 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -648,6 +648,9 @@ enum ethtool_sfeatures_retval_bits { #include <linux/rculist.h> +/* needed by dev_disable_lro() */ +extern int __ethtool_set_flags(struct net_device *dev, u32 flags); + struct ethtool_rx_ntuple_flow_spec_container { struct ethtool_rx_ntuple_flow_spec fs; struct list_head list; diff --git a/net/core/dev.c b/net/core/dev.c index 0b88eba97dab..f453370131a0 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1353,14 +1353,17 @@ EXPORT_SYMBOL(dev_close); */ void dev_disable_lro(struct net_device *dev) { - if (dev->ethtool_ops && dev->ethtool_ops->get_flags && - dev->ethtool_ops->set_flags) { - u32 flags = dev->ethtool_ops->get_flags(dev); - if (flags & ETH_FLAG_LRO) { - flags &= ~ETH_FLAG_LRO; - dev->ethtool_ops->set_flags(dev, flags); - } - } + u32 flags; + + if (dev->ethtool_ops && dev->ethtool_ops->get_flags) + flags = dev->ethtool_ops->get_flags(dev); + else + flags = ethtool_op_get_flags(dev); + + if (!(flags & ETH_FLAG_LRO)) + return; + + __ethtool_set_flags(dev, flags & ~ETH_FLAG_LRO); WARN_ON(dev->features & NETIF_F_LRO); } EXPORT_SYMBOL(dev_disable_lro); diff --git a/net/core/ethtool.c b/net/core/ethtool.c index a1086fb0c0c7..24bd57493c0d 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -513,7 +513,7 @@ static int ethtool_set_one_feature(struct net_device *dev, } } -static int __ethtool_set_flags(struct net_device *dev, u32 data) +int __ethtool_set_flags(struct net_device *dev, u32 data) { u32 changed; -- cgit v1.2.3 From 3c0f3c605b2572c740f66ea39fe2d125399b20aa Mon Sep 17 00:00:00 2001 From: Marc Zyngier <marc.zyngier@arm.com> Date: Fri, 18 Mar 2011 03:53:58 +0000 Subject: NET: smsc95xx: don't use stack for async writes to the device The set_multicast operation performs asynchronous writes to the device, with some addresses pointing to the stack. Bad things may happen, and this is trapped CONFIG_DMA_API_DEBUG: [ 5.237762] WARNING: at /build/buildd/linux-linaro-omap-2.6.38/lib/dma-debug.c:867 check_for_stack+0xd4/0x100() [ 5.237792] ehci-omap ehci-omap.0: DMA-API: device driver maps memory fromstack [addr=d9c77dec] [ 5.237792] Modules linked in: smsc95xx(+) usbnet twl6030_usb twl4030_pwrbutton leds_gpio omap_wdt omap2_mcspi [ 5.237854] [<c006d618>] (unwind_backtrace+0x0/0xf8) from [<c00a6a14>] (warn_slowpath_common+0x54/0x64) [ 5.237884] [<c00a6a14>] (warn_slowpath_common+0x54/0x64) from [<c00a6ab8>] (warn_slowpath_fmt+0x30/0x40) [ 5.237915] [<c00a6ab8>] (warn_slowpath_fmt+0x30/0x40) from [<c034e9d8>] (check_for_stack+0xd4/0x100) [ 5.237915] [<c034e9d8>] (check_for_stack+0xd4/0x100) from [<c034fea8>] (debug_dma_map_page+0xb4/0xdc) [ 5.237976] [<c034fea8>] (debug_dma_map_page+0xb4/0xdc) from [<c04242f0>] (map_urb_for_dma+0x26c/0x304) [ 5.237976] [<c04242f0>] (map_urb_for_dma+0x26c/0x304) from [<c0424594>] (usb_hcd_submit_urb+0x78/0x19c) [ 5.238037] [<c0424594>] (usb_hcd_submit_urb+0x78/0x19c) from [<bf049c5c>] (smsc95xx_write_reg_async+0xb4/0x130 [smsc95xx]) [ 5.238067] [<bf049c5c>] (smsc95xx_write_reg_async+0xb4/0x130 [smsc95xx]) from [<bf049dd4>] (smsc95xx_set_multicast+0xfc/0x148 [smsc95xx]) [ 5.238098] [<bf049dd4>] (smsc95xx_set_multicast+0xfc/0x148 [smsc95xx]) from [<bf04a118>] (smsc95xx_reset+0x2f8/0x68c [smsc95xx]) [ 5.238128] [<bf04a118>] (smsc95xx_reset+0x2f8/0x68c [smsc95xx]) from [<bf04a8cc>] (smsc95xx_bind+0xcc/0x188 [smsc95xx]) [ 5.238159] [<bf04a8cc>] (smsc95xx_bind+0xcc/0x188 [smsc95xx]) from [<bf03ef1c>] (usbnet_probe+0x204/0x4c4 [usbnet]) [ 5.238220] [<bf03ef1c>] (usbnet_probe+0x204/0x4c4 [usbnet]) from [<c0429078>] (usb_probe_interface+0xe4/0x1c4) [ 5.238250] [<c0429078>] (usb_probe_interface+0xe4/0x1c4) from [<c03a8770>] (really_probe+0x64/0x160) [ 5.238250] [<c03a8770>] (really_probe+0x64/0x160) from [<c03a8a30>] (driver_probe_device+0x48/0x60) [ 5.238281] [<c03a8a30>] (driver_probe_device+0x48/0x60) from [<c03a8ad4>] (__driver_attach+0x8c/0x90) [ 5.238311] [<c03a8ad4>] (__driver_attach+0x8c/0x90) from [<c03a7b24>] (bus_for_each_dev+0x50/0x7c) [ 5.238311] [<c03a7b24>] (bus_for_each_dev+0x50/0x7c) from [<c03a82ec>] (bus_add_driver+0x190/0x250) [ 5.238311] [<c03a82ec>] (bus_add_driver+0x190/0x250) from [<c03a8cf8>] (driver_register+0x78/0x13c) [ 5.238433] [<c03a8cf8>] (driver_register+0x78/0x13c) from [<c0428040>] (usb_register_driver+0x78/0x13c) [ 5.238464] [<c0428040>] (usb_register_driver+0x78/0x13c) from [<c005b680>] (do_one_initcall+0x34/0x188) [ 5.238494] [<c005b680>] (do_one_initcall+0x34/0x188) from [<c00e11f0>] (sys_init_module+0xb0/0x1c0) [ 5.238525] [<c00e11f0>] (sys_init_module+0xb0/0x1c0) from [<c0065c40>] (ret_fast_syscall+0x0/0x30) Move the two offenders to the private structure which is kmalloc-ed, and thus safe. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/usb/smsc95xx.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index bc86f4b6ecc2..727874d9deb6 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -49,6 +49,8 @@ struct smsc95xx_priv { u32 mac_cr; + u32 hash_hi; + u32 hash_lo; spinlock_t mac_cr_lock; bool use_tx_csum; bool use_rx_csum; @@ -370,10 +372,11 @@ static void smsc95xx_set_multicast(struct net_device *netdev) { struct usbnet *dev = netdev_priv(netdev); struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]); - u32 hash_hi = 0; - u32 hash_lo = 0; unsigned long flags; + pdata->hash_hi = 0; + pdata->hash_lo = 0; + spin_lock_irqsave(&pdata->mac_cr_lock, flags); if (dev->net->flags & IFF_PROMISC) { @@ -394,13 +397,13 @@ static void smsc95xx_set_multicast(struct net_device *netdev) u32 bitnum = smsc95xx_hash(ha->addr); u32 mask = 0x01 << (bitnum & 0x1F); if (bitnum & 0x20) - hash_hi |= mask; + pdata->hash_hi |= mask; else - hash_lo |= mask; + pdata->hash_lo |= mask; } netif_dbg(dev, drv, dev->net, "HASHH=0x%08X, HASHL=0x%08X\n", - hash_hi, hash_lo); + pdata->hash_hi, pdata->hash_lo); } else { netif_dbg(dev, drv, dev->net, "receive own packets only\n"); pdata->mac_cr &= @@ -410,8 +413,8 @@ static void smsc95xx_set_multicast(struct net_device *netdev) spin_unlock_irqrestore(&pdata->mac_cr_lock, flags); /* Initiate async writes, as we can't wait for completion here */ - smsc95xx_write_reg_async(dev, HASHH, &hash_hi); - smsc95xx_write_reg_async(dev, HASHL, &hash_lo); + smsc95xx_write_reg_async(dev, HASHH, &pdata->hash_hi); + smsc95xx_write_reg_async(dev, HASHL, &pdata->hash_lo); smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr); } -- cgit v1.2.3 From 74cb3c108bc0f599a4eb40980db8580cfba725c9 Mon Sep 17 00:00:00 2001 From: Julian Anastasov <ja@ssi.bg> Date: Sat, 19 Mar 2011 12:13:46 +0000 Subject: ipv4: match prefsrc when deleting routes fib_table_delete forgets to match the routes by prefsrc. Callers can specify known IP in fc_prefsrc and we should remove the exact route. This is needed for cases when same local or broadcast addresses are used in different subnets and the routes differ only in prefsrc. All callers that do not provide fc_prefsrc will ignore the route prefsrc as before and will delete the first occurence. That is how the ip route del default magic works. Current callers are: - ip_rt_ioctl where rtentry_to_fib_config provides fc_prefsrc only when the provided device name matches IP label with colon. - inet_rtm_delroute where RTA_PREFSRC is optional too - fib_magic which deals with routes when deleting addresses and where the fc_prefsrc is always set with the primary IP for the concerned IFA. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/fib_trie.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index 3d28a35c2e1a..ac87a49ad50b 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1665,6 +1665,8 @@ int fib_table_delete(struct fib_table *tb, struct fib_config *cfg) if ((!cfg->fc_type || fa->fa_type == cfg->fc_type) && (cfg->fc_scope == RT_SCOPE_NOWHERE || fa->fa_scope == cfg->fc_scope) && + (!cfg->fc_prefsrc || + fi->fib_prefsrc == cfg->fc_prefsrc) && (!cfg->fc_protocol || fi->fib_protocol == cfg->fc_protocol) && fib_nh_match(cfg, fi) == 0) { -- cgit v1.2.3 From e6abbaa2725a43cf5d26c4c2a5dc6c0f6029ea19 Mon Sep 17 00:00:00 2001 From: Julian Anastasov <ja@ssi.bg> Date: Sat, 19 Mar 2011 12:13:49 +0000 Subject: ipv4: fix route deletion for IPs on many subnets Alex Sidorenko reported for problems with local routes left after IP addresses are deleted. It happens when same IPs are used in more than one subnet for the device. Fix fib_del_ifaddr to restrict the checks for duplicate local and broadcast addresses only to the IFAs that use our primary IFA or another primary IFA with same address. And we expect the prefsrc to be matched when the routes are deleted because it is possible they to differ only by prefsrc. This patch prevents local and broadcast routes to be leaked until their primary IP is deleted finally from the box. As the secondary address promotion needs to delete the routes for all secondaries that used the old primary IFA, add option to ignore these secondaries from the checks and to assume they are already deleted, so that we can safely delete the route while these IFAs are still on the device list. Reported-by: Alex Sidorenko <alexandre.sidorenko@hp.com> Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net> --- include/net/route.h | 1 + net/ipv4/fib_frontend.c | 101 +++++++++++++++++++++++++++++++++++++++++------- 2 files changed, 89 insertions(+), 13 deletions(-) diff --git a/include/net/route.h b/include/net/route.h index 30d6cae3841a..dc102445ec47 100644 --- a/include/net/route.h +++ b/include/net/route.h @@ -207,6 +207,7 @@ extern int ip_rt_dump(struct sk_buff *skb, struct netlink_callback *cb); struct in_ifaddr; extern void fib_add_ifaddr(struct in_ifaddr *); +extern void fib_del_ifaddr(struct in_ifaddr *, struct in_ifaddr *); static inline void ip_rt_put(struct rtable * rt) { diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index a373a259253c..02c3ba61884a 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -722,12 +722,17 @@ void fib_add_ifaddr(struct in_ifaddr *ifa) } } -static void fib_del_ifaddr(struct in_ifaddr *ifa) +/* Delete primary or secondary address. + * Optionally, on secondary address promotion consider the addresses + * from subnet iprim as deleted, even if they are in device list. + * In this case the secondary ifa can be in device list. + */ +void fib_del_ifaddr(struct in_ifaddr *ifa, struct in_ifaddr *iprim) { struct in_device *in_dev = ifa->ifa_dev; struct net_device *dev = in_dev->dev; struct in_ifaddr *ifa1; - struct in_ifaddr *prim = ifa; + struct in_ifaddr *prim = ifa, *prim1 = NULL; __be32 brd = ifa->ifa_address | ~ifa->ifa_mask; __be32 any = ifa->ifa_address & ifa->ifa_mask; #define LOCAL_OK 1 @@ -735,17 +740,26 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa) #define BRD0_OK 4 #define BRD1_OK 8 unsigned ok = 0; + int subnet = 0; /* Primary network */ + int gone = 1; /* Address is missing */ + int same_prefsrc = 0; /* Another primary with same IP */ - if (!(ifa->ifa_flags & IFA_F_SECONDARY)) - fib_magic(RTM_DELROUTE, - dev->flags & IFF_LOOPBACK ? RTN_LOCAL : RTN_UNICAST, - any, ifa->ifa_prefixlen, prim); - else { + if (ifa->ifa_flags & IFA_F_SECONDARY) { prim = inet_ifa_byprefix(in_dev, any, ifa->ifa_mask); if (prim == NULL) { printk(KERN_WARNING "fib_del_ifaddr: bug: prim == NULL\n"); return; } + if (iprim && iprim != prim) { + printk(KERN_WARNING "fib_del_ifaddr: bug: iprim != prim\n"); + return; + } + } else if (!ipv4_is_zeronet(any) && + (any != ifa->ifa_local || ifa->ifa_prefixlen < 32)) { + fib_magic(RTM_DELROUTE, + dev->flags & IFF_LOOPBACK ? RTN_LOCAL : RTN_UNICAST, + any, ifa->ifa_prefixlen, prim); + subnet = 1; } /* Deletion is more complicated than add. @@ -755,6 +769,49 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa) */ for (ifa1 = in_dev->ifa_list; ifa1; ifa1 = ifa1->ifa_next) { + if (ifa1 == ifa) { + /* promotion, keep the IP */ + gone = 0; + continue; + } + /* Ignore IFAs from our subnet */ + if (iprim && ifa1->ifa_mask == iprim->ifa_mask && + inet_ifa_match(ifa1->ifa_address, iprim)) + continue; + + /* Ignore ifa1 if it uses different primary IP (prefsrc) */ + if (ifa1->ifa_flags & IFA_F_SECONDARY) { + /* Another address from our subnet? */ + if (ifa1->ifa_mask == prim->ifa_mask && + inet_ifa_match(ifa1->ifa_address, prim)) + prim1 = prim; + else { + /* We reached the secondaries, so + * same_prefsrc should be determined. + */ + if (!same_prefsrc) + continue; + /* Search new prim1 if ifa1 is not + * using the current prim1 + */ + if (!prim1 || + ifa1->ifa_mask != prim1->ifa_mask || + !inet_ifa_match(ifa1->ifa_address, prim1)) + prim1 = inet_ifa_byprefix(in_dev, + ifa1->ifa_address, + ifa1->ifa_mask); + if (!prim1) + continue; + if (prim1->ifa_local != prim->ifa_local) + continue; + } + } else { + if (prim->ifa_local != ifa1->ifa_local) + continue; + prim1 = ifa1; + if (prim != prim1) + same_prefsrc = 1; + } if (ifa->ifa_local == ifa1->ifa_local) ok |= LOCAL_OK; if (ifa->ifa_broadcast == ifa1->ifa_broadcast) @@ -763,19 +820,37 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa) ok |= BRD1_OK; if (any == ifa1->ifa_broadcast) ok |= BRD0_OK; + /* primary has network specific broadcasts */ + if (prim1 == ifa1 && ifa1->ifa_prefixlen < 31) { + __be32 brd1 = ifa1->ifa_address | ~ifa1->ifa_mask; + __be32 any1 = ifa1->ifa_address & ifa1->ifa_mask; + + if (!ipv4_is_zeronet(any1)) { + if (ifa->ifa_broadcast == brd1 || + ifa->ifa_broadcast == any1) + ok |= BRD_OK; + if (brd == brd1 || brd == any1) + ok |= BRD1_OK; + if (any == brd1 || any == any1) + ok |= BRD0_OK; + } + } } if (!(ok & BRD_OK)) fib_magic(RTM_DELROUTE, RTN_BROADCAST, ifa->ifa_broadcast, 32, prim); - if (!(ok & BRD1_OK)) - fib_magic(RTM_DELROUTE, RTN_BROADCAST, brd, 32, prim); - if (!(ok & BRD0_OK)) - fib_magic(RTM_DELROUTE, RTN_BROADCAST, any, 32, prim); + if (subnet && ifa->ifa_prefixlen < 31) { + if (!(ok & BRD1_OK)) + fib_magic(RTM_DELROUTE, RTN_BROADCAST, brd, 32, prim); + if (!(ok & BRD0_OK)) + fib_magic(RTM_DELROUTE, RTN_BROADCAST, any, 32, prim); + } if (!(ok & LOCAL_OK)) { fib_magic(RTM_DELROUTE, RTN_LOCAL, ifa->ifa_local, 32, prim); /* Check, that this local address finally disappeared. */ - if (inet_addr_type(dev_net(dev), ifa->ifa_local) != RTN_LOCAL) { + if (gone && + inet_addr_type(dev_net(dev), ifa->ifa_local) != RTN_LOCAL) { /* And the last, but not the least thing. * We must flush stray FIB entries. * @@ -896,7 +971,7 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, rt_cache_flush(dev_net(dev), -1); break; case NETDEV_DOWN: - fib_del_ifaddr(ifa); + fib_del_ifaddr(ifa, NULL); fib_update_nh_saddrs(dev); if (ifa->ifa_dev->ifa_list == NULL) { /* Last address was deleted from this interface. -- cgit v1.2.3 From 2d230e2b2c3111cf4a11619f60dcd158ae84e3ab Mon Sep 17 00:00:00 2001 From: Julian Anastasov <ja@ssi.bg> Date: Sat, 19 Mar 2011 12:13:52 +0000 Subject: ipv4: remove the routes on secondary promotion The secondary address promotion relies on fib_sync_down_addr to remove all routes created for the secondary addresses when the old primary address is deleted. It does not happen for cases when the primary address is also in another subnet. Fix that by deleting local and broadcast routes for all secondaries while they are on device list and by faking that all addresses from this subnet are to be deleted. It relies on fib_del_ifaddr being able to ignore the IPs from the concerned subnet while checking for duplication. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/devinet.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 6d85800daeb7..2523001f4c9a 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -345,6 +345,17 @@ static void __inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap, } } + /* On promotion all secondaries from subnet are changing + * the primary IP, we must remove all their routes silently + * and later to add them back with new prefsrc. Do this + * while all addresses are on the device list. + */ + for (ifa = promote; ifa; ifa = ifa->ifa_next) { + if (ifa1->ifa_mask == ifa->ifa_mask && + inet_ifa_match(ifa1->ifa_address, ifa)) + fib_del_ifaddr(ifa, ifa1); + } + /* 2. Unlink it */ *ifap = ifa1->ifa_next; -- cgit v1.2.3 From 04024b937a6e9b7d4320b5853557cea3930d528c Mon Sep 17 00:00:00 2001 From: Julian Anastasov <ja@ssi.bg> Date: Sat, 19 Mar 2011 12:13:54 +0000 Subject: ipv4: optimize route adding on secondary promotion Optimize the calling of fib_add_ifaddr for all secondary addresses after the promoted one to start from their place, not from the new place of the promoted secondary. It will save some CPU cycles because we are sure the promoted secondary was first for the subnet and all next secondaries do not change their place. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/devinet.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 2523001f4c9a..d5a4553bebc3 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -375,6 +375,7 @@ static void __inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap, blocking_notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa1); if (promote) { + struct in_ifaddr *next_sec = promote->ifa_next; if (prev_prom) { prev_prom->ifa_next = promote->ifa_next; @@ -386,7 +387,7 @@ static void __inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap, rtmsg_ifa(RTM_NEWADDR, promote, nlh, pid); blocking_notifier_call_chain(&inetaddr_chain, NETDEV_UP, promote); - for (ifa = promote->ifa_next; ifa; ifa = ifa->ifa_next) { + for (ifa = next_sec; ifa; ifa = ifa->ifa_next) { if (ifa1->ifa_mask != ifa->ifa_mask || !inet_ifa_match(ifa1->ifa_address, ifa)) continue; -- cgit v1.2.3 From cbb84c4cc1ad0ab8faaffd899ccc9b14a88c91be Mon Sep 17 00:00:00 2001 From: Rakib Mullick <rakib.mullick@gmail.com> Date: Tue, 22 Mar 2011 15:24:54 +0600 Subject: x86, mpparse: Move check_slot into CONFIG_X86_IO_APIC context When CONFIG_X86_MPPARSE=y and CONFIG_X86_IO_APIC=n, then we get the following warning: arch/x86/kernel/mpparse.c:723: warning: 'check_slot' defined but not used So, put check_slot into CONFIG_X86_IO_APIC context. Its only called from CONFIG_X86_IO_APIC=y context. Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> LKML-Reference: <AANLkTinsUfGc=NG_GeH_B+zFVu+DXJzZbJKdQLscqfuH@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/mpparse.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 6f789a887c06..5a532ce646bf 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -714,10 +714,6 @@ static void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) *nr_m_spare += 1; } } -#else /* CONFIG_X86_IO_APIC */ -static -inline void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {} -#endif /* CONFIG_X86_IO_APIC */ static int check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length, int count) @@ -731,6 +727,10 @@ check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length, int count) return ret; } +#else /* CONFIG_X86_IO_APIC */ +static +inline void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {} +#endif /* CONFIG_X86_IO_APIC */ static int __init replace_intsrc_all(struct mpc_table *mpc, unsigned long mpc_new_phys, -- cgit v1.2.3 From 1106b6997df7d0c0487e21fd9c9dd2ce3d4a52db Mon Sep 17 00:00:00 2001 From: Jiri Olsa <jolsa@redhat.com> Date: Wed, 16 Feb 2011 17:35:34 +0100 Subject: tracing: Fix set_ftrace_filter probe function display If one or more function probes (like traceon) are enabled, and there's no other function filter, the first probe func is skipped (which one depends on the position in the hash). $ echo sys_open:traceon sys_close:traceon > ./set_ftrace_filter $ cat set_ftrace_filter #### all functions enabled #### sys_close:traceon:unlimited $ The reason was, that in the case of no other function filter, the func_pos was not properly updated before calling t_hash_start. Signed-off-by: Jiri Olsa <jolsa@redhat.com> LKML-Reference: <1297874134-7008-1-git-send-email-jolsa@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- kernel/trace/ftrace.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 888b611897d3..c075f4ea6b94 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1467,7 +1467,7 @@ t_next(struct seq_file *m, void *v, loff_t *pos) return t_hash_next(m, pos); (*pos)++; - iter->pos = *pos; + iter->pos = iter->func_pos = *pos; if (iter->flags & FTRACE_ITER_PRINTALL) return t_hash_start(m, pos); @@ -1502,7 +1502,6 @@ t_next(struct seq_file *m, void *v, loff_t *pos) if (!rec) return t_hash_start(m, pos); - iter->func_pos = *pos; iter->func = rec; return iter; -- cgit v1.2.3 From 246408dcd5dfeef2df437ccb0ef4d6ee87805f58 Mon Sep 17 00:00:00 2001 From: Trond Myklebust <Trond.Myklebust@netapp.com> Date: Tue, 22 Mar 2011 18:40:10 -0400 Subject: SUNRPC: Never reuse the socket port after an xs_close() If we call xs_close(), we're in one of two situations: - Autoclose, which means we don't expect to resend a request - bind+connect failed, which probably means the port is in use Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org --- net/sunrpc/xprtsock.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index be96d429b475..1e336a06d3e6 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -710,6 +710,8 @@ static void xs_reset_transport(struct sock_xprt *transport) if (sk == NULL) return; + transport->srcport = 0; + write_lock_bh(&sk->sk_callback_lock); transport->inet = NULL; transport->sock = NULL; -- cgit v1.2.3 From 4667058b772857069378aa8f417203156e315e82 Mon Sep 17 00:00:00 2001 From: Gusev Vitaliy <gusev.vitaliy@nexenta.com> Date: Wed, 23 Mar 2011 00:40:25 +0300 Subject: nfs4: Fix NULL dereference at d_alloc_and_lookup() d_alloc_and_lookup() calls i_op->lookup method due to rootfh changes his fsid. During mount i_op of NFS root inode is set to nfs_mountpoint_inode_operations, if rpc_ops->getroot() and rpc_ops->getattr() return different fsid. After that nfs_follow_remote_path() raised oops: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [< (null)>] (null) stack trace: d_alloc_and_lookup+0x4c/0x74 do_lookup+0x1e3/0x280 link_path_walk+0x12e/0xab0 nfs4_remote_get_sb+0x56/0x2c0 [nfs] path_walk+0x67/0xe0 vfs_path_lookup+0x8e/0x100 nfs_follow_remote_path+0x16f/0x3e0 [nfs] nfs4_try_mount+0x6f/0xd0 [nfs] nfs_get_sb+0x269/0x400 [nfs] vfs_kern_mount+0x8a/0x1f0 do_kern_mount+0x52/0x130 do_mount+0x20a/0x260 sys_mount+0x90/0xe0 system_call_fastpath+0x16/0x1b So just refresh fsid, as RFC3530 doesn't specify behavior in case of rootfh changes fsid. Signed-off-by: Vitaliy Gusev <gusev.vitaliy@nexenta.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/getroot.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c index b5ffe8fa291f..79796521cfdc 100644 --- a/fs/nfs/getroot.c +++ b/fs/nfs/getroot.c @@ -199,6 +199,10 @@ struct dentry *nfs4_get_root(struct super_block *sb, struct nfs_fh *mntfh) goto out; } + if (fattr->valid & NFS_ATTR_FATTR_FSID && + !nfs_fsid_equal(&server->fsid, &fattr->fsid)) + memcpy(&server->fsid, &fattr->fsid, sizeof(server->fsid)); + inode = nfs_fhget(sb, mntfh, fattr); if (IS_ERR(inode)) { dprintk("nfs_get_root: get root inode failed\n"); -- cgit v1.2.3 From 51e816564db151f7f08c739ad69b9d1dbd166663 Mon Sep 17 00:00:00 2001 From: Jesper Juhl <jj@chaosbits.net> Date: Mon, 21 Mar 2011 20:35:49 +0100 Subject: Remove pointless memset in nfsacl_encode() Remove pointless memset() in nfsacl_encode(). Thanks to Trond Myklebust <Trond.Myklebust@netapp.com> for pointing out that it is not needed since posix_acl_init() will set everything regardless.. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs_common/nfsacl.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/nfs_common/nfsacl.c b/fs/nfs_common/nfsacl.c index 84c27d69d421..ec0f277be7f5 100644 --- a/fs/nfs_common/nfsacl.c +++ b/fs/nfs_common/nfsacl.c @@ -117,7 +117,6 @@ int nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode, * invoked in contexts where a memory allocation failure is * fatal. Fortunately this fake ACL is small enough to * construct on the stack. */ - memset(acl2, 0, sizeof(acl2)); posix_acl_init(acl2, 4); /* Insert entries in canonical order: other orders seem -- cgit v1.2.3 From d88d6b05fee3cc78e5b0273eb58c31201dcc6b76 Mon Sep 17 00:00:00 2001 From: Steve Hodgson <shodgson@solarflare.com> Date: Tue, 22 Mar 2011 19:46:43 +0000 Subject: sfc: Siena: Disable write-combining when SR-IOV is enabled If SR-IOV is enabled by firmware, even if it is not enabled in the PCI capability, TX pushes using write-combining may be corrupted. We want to know whether it is enabled before mapping the NIC registers, and even if PCI extended capabilities are not accessible. Therefore, we look for the MSI capability, which is removed if SR-IOV is enabled. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> --- drivers/net/sfc/efx.c | 18 ++++++++++++++++-- drivers/net/sfc/workarounds.h | 2 ++ 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index b8bd936374f2..d890679e4c4d 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -1054,6 +1054,7 @@ static int efx_init_io(struct efx_nic *efx) { struct pci_dev *pci_dev = efx->pci_dev; dma_addr_t dma_mask = efx->type->max_dma_mask; + bool use_wc; int rc; netif_dbg(efx, probe, efx->net_dev, "initialising I/O\n"); @@ -1104,8 +1105,21 @@ static int efx_init_io(struct efx_nic *efx) rc = -EIO; goto fail3; } - efx->membase = ioremap_wc(efx->membase_phys, - efx->type->mem_map_size); + + /* bug22643: If SR-IOV is enabled then tx push over a write combined + * mapping is unsafe. We need to disable write combining in this case. + * MSI is unsupported when SR-IOV is enabled, and the firmware will + * have removed the MSI capability. So write combining is safe if + * there is an MSI capability. + */ + use_wc = (!EFX_WORKAROUND_22643(efx) || + pci_find_capability(pci_dev, PCI_CAP_ID_MSI)); + if (use_wc) + efx->membase = ioremap_wc(efx->membase_phys, + efx->type->mem_map_size); + else + efx->membase = ioremap_nocache(efx->membase_phys, + efx->type->mem_map_size); if (!efx->membase) { netif_err(efx, probe, efx->net_dev, "could not map memory BAR at %llx+%x\n", diff --git a/drivers/net/sfc/workarounds.h b/drivers/net/sfc/workarounds.h index e4dd3a7f304b..99ff11400cef 100644 --- a/drivers/net/sfc/workarounds.h +++ b/drivers/net/sfc/workarounds.h @@ -38,6 +38,8 @@ #define EFX_WORKAROUND_15783 EFX_WORKAROUND_ALWAYS /* Legacy interrupt storm when interrupt fifo fills */ #define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA +/* Write combining and sriov=enabled are incompatible */ +#define EFX_WORKAROUND_22643 EFX_WORKAROUND_SIENA /* Spurious parity errors in TSORT buffers */ #define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A -- cgit v1.2.3 From 9c7a4f9ce651383c73dfdff3d7e21d5f9572c4ec Mon Sep 17 00:00:00 2001 From: Florian Westphal <fw@strlen.de> Date: Tue, 22 Mar 2011 19:17:36 -0700 Subject: ipv6: ip6_route_output does not modify sk parameter, so make it const This avoids explicit cast to avoid 'discards qualifiers' compiler warning in a netfilter patch that i've been working on. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net> --- include/net/ip6_route.h | 2 +- net/ipv6/route.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 642a80bb42cf..c850e5fb967c 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -70,7 +70,7 @@ static inline struct inet_peer *rt6_get_peer(struct rt6_info *rt) extern void ip6_route_input(struct sk_buff *skb); extern struct dst_entry * ip6_route_output(struct net *net, - struct sock *sk, + const struct sock *sk, struct flowi6 *fl6); extern int ip6_route_init(void); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 6814c8722fa7..843406f14d7b 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -854,7 +854,7 @@ static struct rt6_info *ip6_pol_route_output(struct net *net, struct fib6_table return ip6_pol_route(net, table, fl6->flowi6_oif, fl6, flags); } -struct dst_entry * ip6_route_output(struct net *net, struct sock *sk, +struct dst_entry * ip6_route_output(struct net *net, const struct sock *sk, struct flowi6 *fl6) { int flags = 0; -- cgit v1.2.3 From 6a1fef6d000944911df0f160f366111daa10740a Mon Sep 17 00:00:00 2001 From: Sriram <srk@ti.com> Date: Tue, 22 Mar 2011 02:31:03 +0000 Subject: net: davinci_emac:Fix translation logic for buffer descriptor With recent changes to the driver(switch to new cpdma layer), the support for buffer descriptor address translation logic is broken. This affects platforms where the physical address of the descriptors as seen by the DMA engine is different from the physical address. Original Patch adding translation logic support: Commit: ad021ae8862209864dc8ebd3b7d3a55ce84b9ea2 Signed-off-by: Sriramakrishnan A G <srk@ti.com> Tested-By: Sekhar Nori <nsekhar@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/davinci_cpdma.c | 11 ++++++++--- drivers/net/davinci_cpdma.h | 1 + drivers/net/davinci_emac.c | 5 ++++- include/linux/davinci_emac.h | 1 + 4 files changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/net/davinci_cpdma.c b/drivers/net/davinci_cpdma.c index e92b2b6cd8c4..ae47f23ba930 100644 --- a/drivers/net/davinci_cpdma.c +++ b/drivers/net/davinci_cpdma.c @@ -76,6 +76,7 @@ struct cpdma_desc { struct cpdma_desc_pool { u32 phys; + u32 hw_addr; void __iomem *iomap; /* ioremap map */ void *cpumap; /* dma_alloc map */ int desc_size, mem_size; @@ -137,7 +138,8 @@ struct cpdma_chan { * abstract out these details */ static struct cpdma_desc_pool * -cpdma_desc_pool_create(struct device *dev, u32 phys, int size, int align) +cpdma_desc_pool_create(struct device *dev, u32 phys, u32 hw_addr, + int size, int align) { int bitmap_size; struct cpdma_desc_pool *pool; @@ -161,10 +163,12 @@ cpdma_desc_pool_create(struct device *dev, u32 phys, int size, int align) if (phys) { pool->phys = phys; pool->iomap = ioremap(phys, size); + pool->hw_addr = hw_addr; } else { pool->cpumap = dma_alloc_coherent(dev, size, &pool->phys, GFP_KERNEL); pool->iomap = (void __force __iomem *)pool->cpumap; + pool->hw_addr = pool->phys; } if (pool->iomap) @@ -201,14 +205,14 @@ static inline dma_addr_t desc_phys(struct cpdma_desc_pool *pool, { if (!desc) return 0; - return pool->phys + (__force dma_addr_t)desc - + return pool->hw_addr + (__force dma_addr_t)desc - (__force dma_addr_t)pool->iomap; } static inline struct cpdma_desc __iomem * desc_from_phys(struct cpdma_desc_pool *pool, dma_addr_t dma) { - return dma ? pool->iomap + dma - pool->phys : NULL; + return dma ? pool->iomap + dma - pool->hw_addr : NULL; } static struct cpdma_desc __iomem * @@ -260,6 +264,7 @@ struct cpdma_ctlr *cpdma_ctlr_create(struct cpdma_params *params) ctlr->pool = cpdma_desc_pool_create(ctlr->dev, ctlr->params.desc_mem_phys, + ctlr->params.desc_hw_addr, ctlr->params.desc_mem_size, ctlr->params.desc_align); if (!ctlr->pool) { diff --git a/drivers/net/davinci_cpdma.h b/drivers/net/davinci_cpdma.h index 868e50ebde45..afa19a0c0d81 100644 --- a/drivers/net/davinci_cpdma.h +++ b/drivers/net/davinci_cpdma.h @@ -33,6 +33,7 @@ struct cpdma_params { bool has_soft_reset; int min_packet_size; u32 desc_mem_phys; + u32 desc_hw_addr; int desc_mem_size; int desc_align; diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 082d6ea69920..baca6bfcb089 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -1854,10 +1854,13 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev) dma_params.rxcp = priv->emac_base + 0x660; dma_params.num_chan = EMAC_MAX_TXRX_CHANNELS; dma_params.min_packet_size = EMAC_DEF_MIN_ETHPKTSIZE; - dma_params.desc_mem_phys = hw_ram_addr; + dma_params.desc_hw_addr = hw_ram_addr; dma_params.desc_mem_size = pdata->ctrl_ram_size; dma_params.desc_align = 16; + dma_params.desc_mem_phys = pdata->no_bd_ram ? 0 : + (u32 __force)res->start + pdata->ctrl_ram_offset; + priv->dma = cpdma_ctlr_create(&dma_params); if (!priv->dma) { dev_err(emac_dev, "DaVinci EMAC: Error initializing DMA\n"); diff --git a/include/linux/davinci_emac.h b/include/linux/davinci_emac.h index 5dd428532f79..542888504994 100644 --- a/include/linux/davinci_emac.h +++ b/include/linux/davinci_emac.h @@ -36,6 +36,7 @@ struct emac_platform_data { u8 rmii_en; u8 version; + bool no_bd_ram; void (*interrupt_enable) (void); void (*interrupt_disable) (void); }; -- cgit v1.2.3 From a7bff75b087e7a355838a32efe61707cfa73c194 Mon Sep 17 00:00:00 2001 From: Linus Lüssing <linus.luessing@web.de> Date: Tue, 22 Mar 2011 11:40:32 +0000 Subject: bridge: Fix possibly wrong MLD queries' ethernet source address MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The ipv6_dev_get_saddr() is currently called with an uninitialized destination address. Although in tests it usually seemed to nevertheless always fetch the right source address, there seems to be a possible race condition. Therefore this commit changes this, first setting the destination address and only after that fetching the source address. Reported-by: Jan Beulich <JBeulich@novell.com> Signed-off-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/bridge/br_multicast.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 030a002ff8ee..f61eb2eff3fd 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -445,9 +445,9 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br, ip6h->payload_len = htons(8 + sizeof(*mldq)); ip6h->nexthdr = IPPROTO_HOPOPTS; ip6h->hop_limit = 1; + ipv6_addr_set(&ip6h->daddr, htonl(0xff020000), 0, 0, htonl(1)); ipv6_dev_get_saddr(dev_net(br->dev), br->dev, &ip6h->daddr, 0, &ip6h->saddr); - ipv6_addr_set(&ip6h->daddr, htonl(0xff020000), 0, 0, htonl(1)); ipv6_eth_mc_map(&ip6h->daddr, eth->h_dest); hopopt = (u8 *)(ip6h + 1); -- cgit v1.2.3 From 67d4120a1793138bc9f4a6eb61d0fc5298ed97e0 Mon Sep 17 00:00:00 2001 From: Yuchung Cheng <ycheng@google.com> Date: Mon, 14 Mar 2011 10:57:03 +0000 Subject: tcp: avoid cwnd moderation in undo In the current undo logic, cwnd is moderated after it was restored to the value prior entering fast-recovery. It was moderated first in tcp_try_undo_recovery then again in tcp_complete_cwr. Since the undo indicates recovery was false, these moderations are not necessary. If the undo is triggered when most of the outstanding data have been acknowledged, the (restored) cwnd is falsely pulled down to a small value. This patch removes these cwnd moderations if cwnd is undone a) during fast-recovery b) by receiving DSACKs past fast-recovery Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/tcp_input.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index da782e7ab16d..e72af7e31d1c 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2659,7 +2659,7 @@ static void DBGUNDO(struct sock *sk, const char *msg) #define DBGUNDO(x...) do { } while (0) #endif -static void tcp_undo_cwr(struct sock *sk, const int undo) +static void tcp_undo_cwr(struct sock *sk, const int undo_ssthresh) { struct tcp_sock *tp = tcp_sk(sk); @@ -2671,14 +2671,13 @@ static void tcp_undo_cwr(struct sock *sk, const int undo) else tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh << 1); - if (undo && tp->prior_ssthresh > tp->snd_ssthresh) { + if (undo_ssthresh && tp->prior_ssthresh > tp->snd_ssthresh) { tp->snd_ssthresh = tp->prior_ssthresh; TCP_ECN_withdraw_cwr(tp); } } else { tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh); } - tcp_moderate_cwnd(tp); tp->snd_cwnd_stamp = tcp_time_stamp; } @@ -2822,8 +2821,11 @@ static int tcp_try_undo_loss(struct sock *sk) static inline void tcp_complete_cwr(struct sock *sk) { struct tcp_sock *tp = tcp_sk(sk); - tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh); - tp->snd_cwnd_stamp = tcp_time_stamp; + /* Do not moderate cwnd if it's already undone in cwr or recovery */ + if (tp->undo_marker && tp->snd_cwnd > tp->snd_ssthresh) { + tp->snd_cwnd = tp->snd_ssthresh; + tp->snd_cwnd_stamp = tcp_time_stamp; + } tcp_ca_event(sk, CA_EVENT_COMPLETE_CWR); } -- cgit v1.2.3 From f6152737a95bd6c22f0c664b20831aefd48085a8 Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@davemloft.net> Date: Tue, 22 Mar 2011 19:37:11 -0700 Subject: tcp: Make undo_ssthresh arg to tcp_undo_cwr() a bool. Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/tcp_input.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index e72af7e31d1c..bef9f04c22ba 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2659,7 +2659,7 @@ static void DBGUNDO(struct sock *sk, const char *msg) #define DBGUNDO(x...) do { } while (0) #endif -static void tcp_undo_cwr(struct sock *sk, const int undo_ssthresh) +static void tcp_undo_cwr(struct sock *sk, const bool undo_ssthresh) { struct tcp_sock *tp = tcp_sk(sk); @@ -2698,7 +2698,7 @@ static int tcp_try_undo_recovery(struct sock *sk) * or our original transmission succeeded. */ DBGUNDO(sk, inet_csk(sk)->icsk_ca_state == TCP_CA_Loss ? "loss" : "retrans"); - tcp_undo_cwr(sk, 1); + tcp_undo_cwr(sk, true); if (inet_csk(sk)->icsk_ca_state == TCP_CA_Loss) mib_idx = LINUX_MIB_TCPLOSSUNDO; else @@ -2725,7 +2725,7 @@ static void tcp_try_undo_dsack(struct sock *sk) if (tp->undo_marker && !tp->undo_retrans) { DBGUNDO(sk, "D-SACK"); - tcp_undo_cwr(sk, 1); + tcp_undo_cwr(sk, true); tp->undo_marker = 0; NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPDSACKUNDO); } @@ -2778,7 +2778,7 @@ static int tcp_try_undo_partial(struct sock *sk, int acked) tcp_update_reordering(sk, tcp_fackets_out(tp) + acked, 1); DBGUNDO(sk, "Hoe"); - tcp_undo_cwr(sk, 0); + tcp_undo_cwr(sk, false); NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPPARTIALUNDO); /* So... Do not make Hoe's retransmit yet. @@ -2807,7 +2807,7 @@ static int tcp_try_undo_loss(struct sock *sk) DBGUNDO(sk, "partial loss"); tp->lost_out = 0; - tcp_undo_cwr(sk, 1); + tcp_undo_cwr(sk, true); NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPLOSSUNDO); inet_csk(sk)->icsk_retransmits = 0; tp->undo_marker = 0; @@ -3496,7 +3496,7 @@ static void tcp_undo_spur_to_response(struct sock *sk, int flag) if (flag & FLAG_ECE) tcp_ratehalving_spur_to_response(sk); else - tcp_undo_cwr(sk, 1); + tcp_undo_cwr(sk, true); } /* F-RTO spurious RTO detection algorithm (RFC4138) -- cgit v1.2.3 From 64146f8b2af1ba77fe3c21d9d6d7213b9bb72b40 Mon Sep 17 00:00:00 2001 From: Alex Deucher <alexdeucher@gmail.com> Date: Tue, 22 Mar 2011 01:46:12 -0400 Subject: drm/radeon/kms: prefer legacy pll algo for tv-out ntsc seems to work fine with either algo, some pal TVs seem pickier. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=30832 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> --- drivers/gpu/drm/radeon/atombios_crtc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 3cd3234ba0af..10e41af6b026 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -957,7 +957,11 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode /* adjust pixel clock as needed */ adjusted_clock = atombios_adjust_pll(crtc, mode, pll, ss_enabled, &ss); - if (ASIC_IS_AVIVO(rdev)) + if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)) + /* TV seems to prefer the legacy algo on some boards */ + radeon_compute_pll_legacy(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div, + &ref_div, &post_div); + else if (ASIC_IS_AVIVO(rdev)) radeon_compute_pll_avivo(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div, &ref_div, &post_div); else -- cgit v1.2.3 From 762237bb714b0cd93ce2405ccc891fadb405c26e Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu, 17 Mar 2011 07:20:20 +0000 Subject: drm/i915: Remove surplus POSTING_READs before wait_for_vblank ... as wait_for_vblank (and friends) will do a flush of the MMIO writes anyway. References: https://bugs.freedesktop.org/show_bug.cgi?id=34601 Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> --- drivers/gpu/drm/i915/intel_display.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3106c0dc8389..3bc6ab56cf8b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1518,7 +1518,6 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, val = I915_READ(reg); val |= PIPECONF_ENABLE; I915_WRITE(reg, val); - POSTING_READ(reg); intel_wait_for_vblank(dev_priv->dev, pipe); } @@ -1554,7 +1553,6 @@ static void intel_disable_pipe(struct drm_i915_private *dev_priv, val = I915_READ(reg); val &= ~PIPECONF_ENABLE; I915_WRITE(reg, val); - POSTING_READ(reg); intel_wait_for_pipe_off(dev_priv->dev, pipe); } @@ -1579,7 +1577,6 @@ static void intel_enable_plane(struct drm_i915_private *dev_priv, val = I915_READ(reg); val |= DISPLAY_PLANE_ENABLE; I915_WRITE(reg, val); - POSTING_READ(reg); intel_wait_for_vblank(dev_priv->dev, pipe); } @@ -1612,7 +1609,6 @@ static void intel_disable_plane(struct drm_i915_private *dev_priv, val = I915_READ(reg); val &= ~DISPLAY_PLANE_ENABLE; I915_WRITE(reg, val); - POSTING_READ(reg); intel_flush_display_plane(dev_priv, plane); intel_wait_for_vblank(dev_priv->dev, pipe); } @@ -1769,7 +1765,6 @@ static void g4x_enable_fbc(struct drm_crtc *crtc, unsigned long interval) return; I915_WRITE(DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN); - POSTING_READ(DPFC_CONTROL); intel_wait_for_vblank(dev, intel_crtc->pipe); } @@ -1861,7 +1856,6 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval) return; I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl & ~DPFC_CTL_EN); - POSTING_READ(ILK_DPFC_CONTROL); intel_wait_for_vblank(dev, intel_crtc->pipe); } @@ -5777,7 +5771,6 @@ static void intel_increase_pllclock(struct drm_crtc *crtc) dpll &= ~DISPLAY_RATE_SELECT_FPA1; I915_WRITE(dpll_reg, dpll); - POSTING_READ(dpll_reg); intel_wait_for_vblank(dev, pipe); dpll = I915_READ(dpll_reg); @@ -5821,7 +5814,6 @@ static void intel_decrease_pllclock(struct drm_crtc *crtc) dpll |= DISPLAY_RATE_SELECT_FPA1; I915_WRITE(dpll_reg, dpll); - dpll = I915_READ(dpll_reg); intel_wait_for_vblank(dev, pipe); dpll = I915_READ(dpll_reg); if (!(dpll & DISPLAY_RATE_SELECT_FPA1)) -- cgit v1.2.3 From 00d70b15125030391d17baab2c2f70f93b3339a6 Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu, 17 Mar 2011 07:18:29 +0000 Subject: drm/i915: skip redundant operations whilst enabling pipes and planes If the pipe or plane is already enabled, then we do not need to enable it again and can skip the delay. Similarly if it is already disabled when we want to disable it, we can also skip it. This fixes a regression from b24e717988, which caused the LVDS output on one PineView machine to become corrupt after changing orientation several times. References: https://bugs.freedesktop.org/show_bug.cgi?id=34601 Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Keith Packard <keithp@keithp.com> Tested-by: mengmeng.meng@intel.com --- drivers/gpu/drm/i915/intel_display.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3bc6ab56cf8b..841f0397288b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1516,8 +1516,10 @@ static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, reg = PIPECONF(pipe); val = I915_READ(reg); - val |= PIPECONF_ENABLE; - I915_WRITE(reg, val); + if (val & PIPECONF_ENABLE) + return; + + I915_WRITE(reg, val | PIPECONF_ENABLE); intel_wait_for_vblank(dev_priv->dev, pipe); } @@ -1551,8 +1553,10 @@ static void intel_disable_pipe(struct drm_i915_private *dev_priv, reg = PIPECONF(pipe); val = I915_READ(reg); - val &= ~PIPECONF_ENABLE; - I915_WRITE(reg, val); + if ((val & PIPECONF_ENABLE) == 0) + return; + + I915_WRITE(reg, val & ~PIPECONF_ENABLE); intel_wait_for_pipe_off(dev_priv->dev, pipe); } @@ -1575,8 +1579,10 @@ static void intel_enable_plane(struct drm_i915_private *dev_priv, reg = DSPCNTR(plane); val = I915_READ(reg); - val |= DISPLAY_PLANE_ENABLE; - I915_WRITE(reg, val); + if (val & DISPLAY_PLANE_ENABLE) + return; + + I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE); intel_wait_for_vblank(dev_priv->dev, pipe); } @@ -1607,8 +1613,10 @@ static void intel_disable_plane(struct drm_i915_private *dev_priv, reg = DSPCNTR(plane); val = I915_READ(reg); - val &= ~DISPLAY_PLANE_ENABLE; - I915_WRITE(reg, val); + if ((val & DISPLAY_PLANE_ENABLE) == 0) + return; + + I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE); intel_flush_display_plane(dev_priv, plane); intel_wait_for_vblank(dev_priv->dev, pipe); } -- cgit v1.2.3 From 09bfa51773c1e90f13000dc2fc0c4b84047009bc Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> Date: Thu, 17 Mar 2011 13:45:12 +0000 Subject: drm/i915: Prevent racy removal of request from client list When i915_gem_retire_requests_ring calls i915_gem_request_remove_from_client, the client_list for that request may already be removed in i915_gem_release. So we may call twice list_del(&request->client_list), resulting in an oops like this report: [126167.230394] BUG: unable to handle kernel paging request at 00100104 [126167.230699] IP: [<f8c2ce44>] i915_gem_retire_requests_ring+0xd4/0x240 [i915] [126167.231042] *pdpt = 00000000314c1001 *pde = 0000000000000000 [126167.231314] Oops: 0002 [#1] SMP [126167.231471] last sysfs file: /sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT1/current_now [126167.231901] Modules linked in: snd_seq_dummy nls_utf8 isofs btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs exportfs reiserfs cryptd aes_i586 aes_generic binfmt_misc vboxnetadp vboxnetflt vboxdrv parport_pc ppdev snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep arc4 snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq uvcvideo videodev snd_timer snd_seq_device joydev iwlagn iwlcore mac80211 snd cfg80211 soundcore i915 drm_kms_helper snd_page_alloc psmouse drm serio_raw i2c_algo_bit video lp parport usbhid hid sky2 sdhci_pci ahci sdhci libahci [126167.232018] [126167.232018] Pid: 1101, comm: Xorg Not tainted 2.6.38-6-generic-pae #34-Ubuntu Gateway MC7833U / [126167.232018] EIP: 0060:[<f8c2ce44>] EFLAGS: 00213246 CPU: 0 [126167.232018] EIP is at i915_gem_retire_requests_ring+0xd4/0x240 [i915] [126167.232018] EAX: 00200200 EBX: f1ac25b0 ECX: 00000040 EDX: 00100100 [126167.232018] ESI: f1a2801c EDI: e87fc060 EBP: ef4d7dd8 ESP: ef4d7db0 [126167.232018] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [126167.232018] Process Xorg (pid: 1101, ti=ef4d6000 task=f1ba6500 task.ti=ef4d6000) [126167.232018] Stack: [126167.232018] f1a28000 f1a2809c f1a28094 0058bd97 f1aa2400 f1a2801c 0058bd7b 0058bd85 [126167.232018] f1a2801c f1a28000 ef4d7e38 f8c2e995 ef4d7e30 ef4d7e60 c14d1ebc f6b3a040 [126167.232018] f1522cc0 000000db 00000000 f1ba6500 ffffffa1 00000000 00000001 f1a29214 [126167.232018] Call Trace: Unfortunately the call trace reported was cut, but looking at debug symbols the crash is at __list_del, when probably list_del is called twice on the same request->client_list, as the dereferenced value is LIST_POISON1 + 4, and by looking more at the debug symbols before list_del call it should have being called by i915_gem_request_remove_from_client And as I can see in the code, it seems we indeed have the possibility to remove a request->client_list twice, which would cause the above, because we do list_del(&request->client_list) on both i915_gem_request_remove_from_client and i915_gem_release As Chris Wilson pointed out, it's indeed the case: "(...) I had thought that the actual insertion/deletion was serialised under the struct mutex and the intention of the spinlock was to protect the unlocked list traversal during throttling. However, I missed that i915_gem_release() is also called without struct mutex and so we do need the double check for i915_gem_request_remove_from_client()." This change does the required check to avoid the duplicate remove of request->client_list. Bugzilla: http://bugs.launchpad.net/bugs/733780 Cc: stable@kernel.org # 2.6.38 Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> --- drivers/gpu/drm/i915/i915_gem.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index c4c2855d002d..d4bf061dbaf1 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1796,8 +1796,10 @@ i915_gem_request_remove_from_client(struct drm_i915_gem_request *request) return; spin_lock(&file_priv->mm.lock); - list_del(&request->client_list); - request->file_priv = NULL; + if (request->file_priv) { + list_del(&request->client_list); + request->file_priv = NULL; + } spin_unlock(&file_priv->mm.lock); } -- cgit v1.2.3 From 7ccb4a53eb03c9196646ca0c2a97558313e886f1 Mon Sep 17 00:00:00 2001 From: Yuanhan Liu <yuanhan.liu@intel.com> Date: Fri, 18 Mar 2011 07:37:35 +0000 Subject: drm/i915: Re-enable self-refresh A broken implementation of is_pot() prevented the detection of when a singular pipe was enabled. Eric Anholt pointed out the existence of is_power_of_2() so use that instead of our broken code! Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=35402 Signed-off-by: Yuanhan Liu <yuanhan.liu@intel.com> Tested-by: xunx.fang@intel.com Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> --- drivers/gpu/drm/i915/intel_display.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 841f0397288b..49c07231302c 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3885,10 +3885,7 @@ static bool g4x_compute_srwm(struct drm_device *dev, display, cursor); } -static inline bool single_plane_enabled(unsigned int mask) -{ - return mask && (mask & -mask) == 0; -} +#define single_plane_enabled(mask) is_power_of_2(mask) static void g4x_update_wm(struct drm_device *dev) { -- cgit v1.2.3 From 29c5a587284195278e233eec5c2234c24fb2c204 Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu, 17 Mar 2011 15:23:22 +0000 Subject: drm/i915: Fix tiling corruption from pipelined fencing ... even though it was disabled. A mistake in the handling of fence reuse caused us to skip the vital delay of waiting for the object to finish rendering before changing the register. This resulted in us changing the fence register whilst the bo was active and so causing the blits to complete using the wrong stride or even the wrong tiling. (Visually the effect is that small blocks of the screen look like they have been interlaced). The fix is to wait for the GPU to finish using the memory region pointed to by the fence before changing it. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=34584 Cc: Andy Whitcroft <apw@canonical.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> [Note for 2.6.38-stable, we need to reintroduce the interruptible passing] Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Tested-by: Dave Airlie <airlied@linux.ie> --- drivers/gpu/drm/i915/i915_gem.c | 44 ++++++++++++++++------------------------- 1 file changed, 17 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index d4bf061dbaf1..c5dfb59e13d3 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2581,8 +2581,23 @@ i915_gem_object_get_fence(struct drm_i915_gem_object *obj, reg = &dev_priv->fence_regs[obj->fence_reg]; list_move_tail(®->lru_list, &dev_priv->mm.fence_list); - if (!obj->fenced_gpu_access && !obj->last_fenced_seqno) - pipelined = NULL; + if (obj->tiling_changed) { + ret = i915_gem_object_flush_fence(obj, pipelined); + if (ret) + return ret; + + if (!obj->fenced_gpu_access && !obj->last_fenced_seqno) + pipelined = NULL; + + if (pipelined) { + reg->setup_seqno = + i915_gem_next_request_seqno(pipelined); + obj->last_fenced_seqno = reg->setup_seqno; + obj->last_fenced_ring = pipelined; + } + + goto update; + } if (!pipelined) { if (reg->setup_seqno) { @@ -2601,31 +2616,6 @@ i915_gem_object_get_fence(struct drm_i915_gem_object *obj, ret = i915_gem_object_flush_fence(obj, pipelined); if (ret) return ret; - } else if (obj->tiling_changed) { - if (obj->fenced_gpu_access) { - if (obj->base.write_domain & I915_GEM_GPU_DOMAINS) { - ret = i915_gem_flush_ring(obj->ring, - 0, obj->base.write_domain); - if (ret) - return ret; - } - - obj->fenced_gpu_access = false; - } - } - - if (!obj->fenced_gpu_access && !obj->last_fenced_seqno) - pipelined = NULL; - BUG_ON(!pipelined && reg->setup_seqno); - - if (obj->tiling_changed) { - if (pipelined) { - reg->setup_seqno = - i915_gem_next_request_seqno(pipelined); - obj->last_fenced_seqno = reg->setup_seqno; - obj->last_fenced_ring = pipelined; - } - goto update; } return 0; -- cgit v1.2.3 From 69ac43b05eef4b8555e84ad51ceb6c58b5a3bc75 Mon Sep 17 00:00:00 2001 From: Chen Liu <chenliu@asset.uwaterloo.ca> Date: Wed, 23 Mar 2011 10:14:58 +0100 Subject: [S390] early: Fix possible overlapping data buffer This patch fixed bugzilla #12965: https://bugzilla.kernel.org/show_bug.cgi?id=12965 The original code contains some inproper use of sprintf function where a buffer is used both as input string as well as output string. It should remember the written bytes in the previous and use that as the offset for later writing. Also replace sprintf with snprintf. Signed-off-by: Chen Liu <chenliu@asset.uwaterloo.ca> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/kernel/early.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 3b7e7dddc324..668138ee85d9 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -94,6 +94,7 @@ static noinline __init void create_kernel_nss(void) unsigned int sinitrd_pfn, einitrd_pfn; #endif int response; + int hlen; size_t len; char *savesys_ptr; char defsys_cmd[DEFSYS_CMD_SIZE]; @@ -124,22 +125,24 @@ static noinline __init void create_kernel_nss(void) end_pfn = PFN_UP(__pa(&_end)); min_size = end_pfn << 2; - sprintf(defsys_cmd, "DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X", - kernel_nss_name, stext_pfn - 1, stext_pfn, eshared_pfn - 1, - eshared_pfn, end_pfn); + hlen = snprintf(defsys_cmd, DEFSYS_CMD_SIZE, + "DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X", + kernel_nss_name, stext_pfn - 1, stext_pfn, + eshared_pfn - 1, eshared_pfn, end_pfn); #ifdef CONFIG_BLK_DEV_INITRD if (INITRD_START && INITRD_SIZE) { sinitrd_pfn = PFN_DOWN(__pa(INITRD_START)); einitrd_pfn = PFN_UP(__pa(INITRD_START + INITRD_SIZE)); min_size = einitrd_pfn << 2; - sprintf(defsys_cmd, "%s EW %.5X-%.5X", defsys_cmd, - sinitrd_pfn, einitrd_pfn); + hlen += snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen, + " EW %.5X-%.5X", sinitrd_pfn, einitrd_pfn); } #endif - sprintf(defsys_cmd, "%s EW MINSIZE=%.7iK PARMREGS=0-13", - defsys_cmd, min_size); + snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen, + " EW MINSIZE=%.7iK PARMREGS=0-13", min_size); + defsys_cmd[DEFSYS_CMD_SIZE - 1] = '\0'; sprintf(savesys_cmd, "SAVESYS %s \n IPL %s", kernel_nss_name, kernel_nss_name); -- cgit v1.2.3 From 894e491e427ae40af62b871e05f9a3f80bbddb6c Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:14:59 +0100 Subject: [S390] early: limit savesys cmd string handling Use snprintf() here as well so we won't have to deal with this again. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/kernel/early.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 668138ee85d9..068f8465c4ee 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -143,8 +143,9 @@ static noinline __init void create_kernel_nss(void) snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen, " EW MINSIZE=%.7iK PARMREGS=0-13", min_size); defsys_cmd[DEFSYS_CMD_SIZE - 1] = '\0'; - sprintf(savesys_cmd, "SAVESYS %s \n IPL %s", - kernel_nss_name, kernel_nss_name); + snprintf(savesys_cmd, SAVESYS_CMD_SIZE, "SAVESYS %s \n IPL %s", + kernel_nss_name, kernel_nss_name); + savesys_cmd[SAVESYS_CMD_SIZE - 1] = '\0'; __cpcmd(defsys_cmd, NULL, 0, &response); -- cgit v1.2.3 From 984e8486c155cf53c255e2b501de91b39a049613 Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:15:00 +0100 Subject: [S390] oprofile: disable hw sampling for CONFIG_32BIT Doesn't work and build for CONFIG_32BIT. So disable it. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/oprofile/Makefile | 3 ++- arch/s390/oprofile/init.c | 15 +++++++++++++-- 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/arch/s390/oprofile/Makefile b/arch/s390/oprofile/Makefile index d698cddcfbdd..524c4b615821 100644 --- a/arch/s390/oprofile/Makefile +++ b/arch/s390/oprofile/Makefile @@ -6,4 +6,5 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \ oprofilefs.o oprofile_stats.o \ timer_int.o ) -oprofile-y := $(DRIVER_OBJS) init.o backtrace.o hwsampler.o +oprofile-y := $(DRIVER_OBJS) init.o backtrace.o +oprofile-$(CONFIG_64BIT) += hwsampler.o diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index 16c76def4a9d..c63d7e58352b 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -18,6 +18,11 @@ #include <linux/fs.h> #include "../../../drivers/oprofile/oprof.h" + +extern void s390_backtrace(struct pt_regs * const regs, unsigned int depth); + +#ifdef CONFIG_64BIT + #include "hwsampler.h" #define DEFAULT_INTERVAL 4096 @@ -37,8 +42,6 @@ static int hwsampler_running; /* start_mutex must be held to change */ static struct oprofile_operations timer_ops; -extern void s390_backtrace(struct pt_regs * const regs, unsigned int depth); - static int oprofile_hwsampler_start(void) { int retval; @@ -172,14 +175,22 @@ static void oprofile_hwsampler_exit(void) hwsampler_shutdown(); } +#endif /* CONFIG_64BIT */ + int __init oprofile_arch_init(struct oprofile_operations *ops) { ops->backtrace = s390_backtrace; +#ifdef CONFIG_64BIT return oprofile_hwsampler_init(ops); +#else + return -ENODEV; +#endif } void oprofile_arch_exit(void) { +#ifdef CONFIG_64BIT oprofile_hwsampler_exit(); +#endif } -- cgit v1.2.3 From 737fd5f1f64271999b791cbe76f1f720f10e8bb8 Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:15:55 +0100 Subject: [S390] wire up sys_name_to_handle_at Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/include/asm/unistd.h | 3 ++- arch/s390/kernel/compat_wrapper.S | 9 +++++++++ arch/s390/kernel/syscalls.S | 1 + 3 files changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 1049ef27c15e..80f27c9f7202 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -272,7 +272,8 @@ #define __NR_fanotify_init 332 #define __NR_fanotify_mark 333 #define __NR_prlimit64 334 -#define NR_syscalls 335 +#define __NR_name_to_handle_at 335 +#define NR_syscalls 336 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 8e60fb23b90d..364ed14406bb 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1877,3 +1877,12 @@ sys_prlimit64_wrapper: llgtr %r4,%r4 # const struct rlimit64 __user * llgtr %r5,%r5 # struct rlimit64 __user * jg sys_prlimit64 # branch to system call + + .globl sys_name_to_handle_at_wrapper +sys_name_to_handle_at_wrapper: + lgfr %r2,%r2 # int + llgtr %r3,%r3 # const char __user * + llgtr %r4,%r4 # struct file_handle __user * + llgtr %r5,%r5 # int __user * + lgfr %r6,%r6 # int + jg sys_name_to_handle_at diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index a8fee1b14395..1230c6e75a84 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -343,3 +343,4 @@ SYSCALL(sys_perf_event_open,sys_perf_event_open,sys_perf_event_open_wrapper) SYSCALL(sys_fanotify_init,sys_fanotify_init,sys_fanotify_init_wrapper) SYSCALL(sys_fanotify_mark,sys_fanotify_mark,sys_fanotify_mark_wrapper) SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper) +SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */ -- cgit v1.2.3 From 5069496ec40946da413646f9cd5dcb28d9b3324f Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:15:56 +0100 Subject: [S390] wire up sys_open_by_handle_at Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/include/asm/unistd.h | 3 ++- arch/s390/kernel/compat_wrapper.S | 7 +++++++ arch/s390/kernel/syscalls.S | 1 + 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 80f27c9f7202..65f11efdd94c 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -273,7 +273,8 @@ #define __NR_fanotify_mark 333 #define __NR_prlimit64 334 #define __NR_name_to_handle_at 335 -#define NR_syscalls 336 +#define __NR_open_by_handle_at 336 +#define NR_syscalls 337 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 364ed14406bb..03918128bb45 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1886,3 +1886,10 @@ sys_name_to_handle_at_wrapper: llgtr %r5,%r5 # int __user * lgfr %r6,%r6 # int jg sys_name_to_handle_at + + .globl compat_sys_open_by_handle_at_wrapper +compat_sys_open_by_handle_at_wrapper: + lgfr %r2,%r2 # int + llgtr %r3,%r3 # struct file_handle __user * + lgfr %r4,%r4 # int + jg compat_sys_open_by_handle_at diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 1230c6e75a84..958744cdcaba 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -344,3 +344,4 @@ SYSCALL(sys_fanotify_init,sys_fanotify_init,sys_fanotify_init_wrapper) SYSCALL(sys_fanotify_mark,sys_fanotify_mark,sys_fanotify_mark_wrapper) SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper) SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */ +SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper) -- cgit v1.2.3 From 26e8a33989183e81d6692aec1a77dffa266b91a2 Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:15:57 +0100 Subject: [S390] wire up sys_clock_adjtime Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/include/asm/unistd.h | 3 ++- arch/s390/kernel/compat_wrapper.S | 6 ++++++ arch/s390/kernel/syscalls.S | 1 + 3 files changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 65f11efdd94c..e00373061fc9 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -274,7 +274,8 @@ #define __NR_prlimit64 334 #define __NR_name_to_handle_at 335 #define __NR_open_by_handle_at 336 -#define NR_syscalls 337 +#define __NR_clock_adjtime 337 +#define NR_syscalls 338 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 03918128bb45..494db7f7c23c 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1893,3 +1893,9 @@ compat_sys_open_by_handle_at_wrapper: llgtr %r3,%r3 # struct file_handle __user * lgfr %r4,%r4 # int jg compat_sys_open_by_handle_at + + .globl compat_sys_clock_adjtime_wrapper +compat_sys_clock_adjtime_wrapper: + lgfr %r2,%r2 # clockid_t (int) + llgtr %r3,%r3 # struct compat_timex __user * + jg compat_sys_clock_adjtime diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 958744cdcaba..8ff300208d2d 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -345,3 +345,4 @@ SYSCALL(sys_fanotify_mark,sys_fanotify_mark,sys_fanotify_mark_wrapper) SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper) SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */ SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper) +SYSCALL(sys_clock_adjtime,sys_clock_adjtime,compat_sys_clock_adjtime_wrapper) -- cgit v1.2.3 From d0d2e31af691ed3dbb4e556bf939b86ef745e6a3 Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:15:58 +0100 Subject: [S390] wire up sys_syncfs Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/include/asm/unistd.h | 3 ++- arch/s390/kernel/compat_wrapper.S | 5 +++++ arch/s390/kernel/syscalls.S | 1 + 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index e00373061fc9..e82152572377 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -275,7 +275,8 @@ #define __NR_name_to_handle_at 335 #define __NR_open_by_handle_at 336 #define __NR_clock_adjtime 337 -#define NR_syscalls 338 +#define __NR_syncfs 338 +#define NR_syscalls 339 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 494db7f7c23c..1dc96ea08fa8 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1899,3 +1899,8 @@ compat_sys_clock_adjtime_wrapper: lgfr %r2,%r2 # clockid_t (int) llgtr %r3,%r3 # struct compat_timex __user * jg compat_sys_clock_adjtime + + .globl sys_syncfs_wrapper +sys_syncfs_wrapper: + lgfr %r2,%r2 # int + jg sys_syncfs diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 8ff300208d2d..9c65fd4ddce0 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -346,3 +346,4 @@ SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper) SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */ SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper) SYSCALL(sys_clock_adjtime,sys_clock_adjtime,compat_sys_clock_adjtime_wrapper) +SYSCALL(sys_syncfs,sys_syncfs,sys_syncfs_wrapper) -- cgit v1.2.3 From 71189284e61fd818547430186f524c1db54fb7c7 Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:15:59 +0100 Subject: [S390] setup: simplify setup_resources() Simplify setup_resources() and make it more generic. That way it is easier to add additional resources. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/kernel/setup.c | 80 ++++++++++++++++++++---------------------------- 1 file changed, 34 insertions(+), 46 deletions(-) diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 6f6350826c81..455345104c8c 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -102,16 +102,6 @@ EXPORT_SYMBOL(lowcore_ptr); #include <asm/setup.h> -static struct resource code_resource = { - .name = "Kernel code", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, -}; - -static struct resource data_resource = { - .name = "Kernel data", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, -}; - /* * condev= and conmode= setup parameter. */ @@ -436,11 +426,25 @@ setup_lowcore(void) lowcore_ptr[0] = lc; } -static void __init -setup_resources(void) +static struct resource code_resource = { + .name = "Kernel code", + .flags = IORESOURCE_BUSY | IORESOURCE_MEM, +}; + +static struct resource data_resource = { + .name = "Kernel data", + .flags = IORESOURCE_BUSY | IORESOURCE_MEM, +}; + +static struct resource __initdata *standard_resources[] = { + &code_resource, + &data_resource, +}; + +static void __init setup_resources(void) { - struct resource *res, *sub_res; - int i; + struct resource *res, *std_res, *sub_res; + int i, j; code_resource.start = (unsigned long) &_text; code_resource.end = (unsigned long) &_etext - 1; @@ -450,7 +454,7 @@ setup_resources(void) for (i = 0; i < MEMORY_CHUNKS; i++) { if (!memory_chunk[i].size) continue; - res = alloc_bootmem_low(sizeof(struct resource)); + res = alloc_bootmem_low(sizeof(*res)); res->flags = IORESOURCE_BUSY | IORESOURCE_MEM; switch (memory_chunk[i].type) { case CHUNK_READ_WRITE: @@ -464,40 +468,24 @@ setup_resources(void) res->name = "reserved"; } res->start = memory_chunk[i].addr; - res->end = memory_chunk[i].addr + memory_chunk[i].size - 1; + res->end = res->start + memory_chunk[i].size - 1; request_resource(&iomem_resource, res); - if (code_resource.start >= res->start && - code_resource.start <= res->end && - code_resource.end > res->end) { - sub_res = alloc_bootmem_low(sizeof(struct resource)); - memcpy(sub_res, &code_resource, - sizeof(struct resource)); - sub_res->end = res->end; - code_resource.start = res->end + 1; - request_resource(res, sub_res); - } - - if (code_resource.start >= res->start && - code_resource.start <= res->end && - code_resource.end <= res->end) - request_resource(res, &code_resource); - - if (data_resource.start >= res->start && - data_resource.start <= res->end && - data_resource.end > res->end) { - sub_res = alloc_bootmem_low(sizeof(struct resource)); - memcpy(sub_res, &data_resource, - sizeof(struct resource)); - sub_res->end = res->end; - data_resource.start = res->end + 1; - request_resource(res, sub_res); + for (j = 0; j < ARRAY_SIZE(standard_resources); j++) { + std_res = standard_resources[j]; + if (std_res->start < res->start || + std_res->start > res->end) + continue; + if (std_res->end > res->end) { + sub_res = alloc_bootmem_low(sizeof(*sub_res)); + *sub_res = *std_res; + sub_res->end = res->end; + std_res->start = res->end + 1; + request_resource(res, sub_res); + } else { + request_resource(res, std_res); + } } - - if (data_resource.start >= res->start && - data_resource.start <= res->end && - data_resource.end <= res->end) - request_resource(res, &data_resource); } } -- cgit v1.2.3 From 4cc69531f91dfa1668af5e9d8efe9e3bc7b64548 Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:16:00 +0100 Subject: [S390] setup: register bss section as resource Make kernel bss section visible via /proc/iomem like on other architectures. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/kernel/setup.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 455345104c8c..ed183c2c6168 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -436,9 +436,15 @@ static struct resource data_resource = { .flags = IORESOURCE_BUSY | IORESOURCE_MEM, }; +static struct resource bss_resource = { + .name = "Kernel bss", + .flags = IORESOURCE_BUSY | IORESOURCE_MEM, +}; + static struct resource __initdata *standard_resources[] = { &code_resource, &data_resource, + &bss_resource, }; static void __init setup_resources(void) @@ -450,6 +456,8 @@ static void __init setup_resources(void) code_resource.end = (unsigned long) &_etext - 1; data_resource.start = (unsigned long) &_etext; data_resource.end = (unsigned long) &_edata - 1; + bss_resource.start = (unsigned long) &__bss_start; + bss_resource.end = (unsigned long) &__bss_stop - 1; for (i = 0; i < MEMORY_CHUNKS; i++) { if (!memory_chunk[i].size) -- cgit v1.2.3 From 9a26513eb67ec4b2cb1744834076afad21b68aac Mon Sep 17 00:00:00 2001 From: Jan Glauber <jang@linux.vnet.ibm.com> Date: Wed, 23 Mar 2011 10:16:01 +0100 Subject: [S390] qdio: prevent handling of buffers if count is zero Exit do_QDIO early if the buffer count is zero to prevent side effects in the following functions. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- drivers/s390/cio/qdio_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 5640c89cd9de..479c665e9e7c 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -1508,7 +1508,8 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags, if (irq_ptr->state != QDIO_IRQ_STATE_ACTIVE) return -EBUSY; - + if (!count) + return 0; if (callflags & QDIO_FLAG_SYNC_INPUT) return handle_inbound(irq_ptr->input_qs[q_nr], callflags, bufnr, count); -- cgit v1.2.3 From 3bda058b0c39fc72188116d2fd71af08dd0fe5b0 Mon Sep 17 00:00:00 2001 From: Sebastian Ott <sebott@linux.vnet.ibm.com> Date: Wed, 23 Mar 2011 10:16:02 +0100 Subject: [S390] ccw_driver: remove duplicate members Remove the owner and name members of struct ccw_driver and convert all drivers to store this data in the embedded struct device_driver. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/include/asm/ccwdev.h | 4 ---- drivers/s390/block/dasd_eckd.c | 6 ++++-- drivers/s390/block/dasd_fba.c | 6 ++++-- drivers/s390/char/con3215.c | 6 ++++-- drivers/s390/char/raw3270.c | 6 ++++-- drivers/s390/char/tape_34xx.c | 6 ++++-- drivers/s390/char/tape_3590.c | 6 ++++-- drivers/s390/char/vmur.c | 6 ++++-- drivers/s390/cio/device.c | 6 ++---- drivers/s390/net/claw.c | 6 ++++-- drivers/s390/net/ctcm_main.c | 6 ++++-- drivers/s390/net/lcs.c | 6 ++++-- drivers/s390/net/qeth_core_main.c | 4 +++- drivers/s390/scsi/zfcp_ccw.c | 6 ++++-- 14 files changed, 49 insertions(+), 31 deletions(-) diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index ff6f62e0ec3e..623f2fb71774 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -112,7 +112,6 @@ enum uc_todo { /** * struct ccw driver - device driver for channel attached devices - * @owner: owning module * @ids: ids supported by this driver * @probe: function called on probe * @remove: function called on remove @@ -128,10 +127,8 @@ enum uc_todo { * @restore: callback for restoring after hibernation * @uc_handler: callback for unit check handler * @driver: embedded device driver structure - * @name: device driver name */ struct ccw_driver { - struct module *owner; struct ccw_device_id *ids; int (*probe) (struct ccw_device *); void (*remove) (struct ccw_device *); @@ -147,7 +144,6 @@ struct ccw_driver { int (*restore)(struct ccw_device *); enum uc_todo (*uc_handler) (struct ccw_device *, struct irb *); struct device_driver driver; - char *name; }; extern struct ccw_device *get_ccwdev_by_busid(struct ccw_driver *cdrv, diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 379d8592bc6e..459f2cbe80fc 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -3982,8 +3982,10 @@ out_err: } static struct ccw_driver dasd_eckd_driver = { - .name = "dasd-eckd", - .owner = THIS_MODULE, + .driver = { + .name = "dasd-eckd", + .owner = THIS_MODULE, + }, .ids = dasd_eckd_ids, .probe = dasd_eckd_probe, .remove = dasd_generic_remove, diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index be89b3a893da..4b71b1164868 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -65,8 +65,10 @@ dasd_fba_set_online(struct ccw_device *cdev) } static struct ccw_driver dasd_fba_driver = { - .name = "dasd-fba", - .owner = THIS_MODULE, + .driver = { + .name = "dasd-fba", + .owner = THIS_MODULE, + }, .ids = dasd_fba_ids, .probe = dasd_fba_probe, .remove = dasd_generic_remove, diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 3fb4335d491d..694464c65fcd 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -764,8 +764,10 @@ static struct ccw_device_id raw3215_id[] = { }; static struct ccw_driver raw3215_ccw_driver = { - .name = "3215", - .owner = THIS_MODULE, + .driver = { + .name = "3215", + .owner = THIS_MODULE, + }, .ids = raw3215_id, .probe = &raw3215_probe, .remove = &raw3215_remove, diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index 96ba2fd1c8ad..4c023761946f 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -1388,8 +1388,10 @@ static struct ccw_device_id raw3270_id[] = { }; static struct ccw_driver raw3270_ccw_driver = { - .name = "3270", - .owner = THIS_MODULE, + .driver = { + .name = "3270", + .owner = THIS_MODULE, + }, .ids = raw3270_id, .probe = &raw3270_probe, .remove = &raw3270_remove, diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c index c26511171ffe..9eff2df70ddb 100644 --- a/drivers/s390/char/tape_34xx.c +++ b/drivers/s390/char/tape_34xx.c @@ -1320,8 +1320,10 @@ tape_34xx_online(struct ccw_device *cdev) } static struct ccw_driver tape_34xx_driver = { - .name = "tape_34xx", - .owner = THIS_MODULE, + .driver = { + .name = "tape_34xx", + .owner = THIS_MODULE, + }, .ids = tape_34xx_ids, .probe = tape_generic_probe, .remove = tape_generic_remove, diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index de2e99e0a71b..b98dcbd16711 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -1761,8 +1761,10 @@ tape_3590_online(struct ccw_device *cdev) } static struct ccw_driver tape_3590_driver = { - .name = "tape_3590", - .owner = THIS_MODULE, + .driver = { + .name = "tape_3590", + .owner = THIS_MODULE, + }, .ids = tape_3590_ids, .probe = tape_generic_probe, .remove = tape_generic_remove, diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index caef1757341d..f6b00c3df425 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -64,8 +64,10 @@ static int ur_set_offline(struct ccw_device *cdev); static int ur_pm_suspend(struct ccw_device *cdev); static struct ccw_driver ur_driver = { - .name = "vmur", - .owner = THIS_MODULE, + .driver = { + .name = "vmur", + .owner = THIS_MODULE, + }, .ids = ur_ids, .probe = ur_probe, .remove = ur_remove, diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index e50b12163afe..334459eb23c8 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -547,7 +547,7 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr, if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0) return -EAGAIN; - if (cdev->drv && !try_module_get(cdev->drv->owner)) { + if (cdev->drv && !try_module_get(cdev->drv->driver.owner)) { atomic_set(&cdev->private->onoff, 0); return -EINVAL; } @@ -573,7 +573,7 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr, } out: if (cdev->drv) - module_put(cdev->drv->owner); + module_put(cdev->drv->driver.owner); atomic_set(&cdev->private->onoff, 0); return (ret < 0) ? ret : count; } @@ -1993,8 +1993,6 @@ int ccw_driver_register(struct ccw_driver *cdriver) struct device_driver *drv = &cdriver->driver; drv->bus = &ccw_bus_type; - drv->name = cdriver->name; - drv->owner = cdriver->owner; return driver_register(drv); } diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c index ce3a5c13ce0b..2e2d2dfe78db 100644 --- a/drivers/s390/net/claw.c +++ b/drivers/s390/net/claw.c @@ -282,8 +282,10 @@ static struct ccw_device_id claw_ids[] = { MODULE_DEVICE_TABLE(ccw, claw_ids); static struct ccw_driver claw_ccw_driver = { - .owner = THIS_MODULE, - .name = "claw", + .driver = { + .owner = THIS_MODULE, + .name = "claw", + }, .ids = claw_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index 4c2845985927..97fd4800ab12 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -1764,8 +1764,10 @@ static struct ccw_device_id ctcm_ids[] = { MODULE_DEVICE_TABLE(ccw, ctcm_ids); static struct ccw_driver ctcm_ccw_driver = { - .owner = THIS_MODULE, - .name = "ctcm", + .driver = { + .owner = THIS_MODULE, + .name = "ctcm", + }, .ids = ctcm_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 30b2a820e670..f59429c3bc30 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -2396,8 +2396,10 @@ static struct ccw_device_id lcs_ids[] = { MODULE_DEVICE_TABLE(ccw, lcs_ids); static struct ccw_driver lcs_ccw_driver = { - .owner = THIS_MODULE, - .name = "lcs", + .driver = { + .owner = THIS_MODULE, + .name = "lcs", + }, .ids = lcs_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 25eef304bd47..150b2cd99ba8 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -3902,7 +3902,9 @@ static struct ccw_device_id qeth_ids[] = { MODULE_DEVICE_TABLE(ccw, qeth_ids); static struct ccw_driver qeth_ccw_driver = { - .name = "qeth", + .driver = { + .name = "qeth", + }, .ids = qeth_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index 4f7852dd30c7..e8b7cee62046 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -251,8 +251,10 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev) } struct ccw_driver zfcp_ccw_driver = { - .owner = THIS_MODULE, - .name = "zfcp", + .driver = { + .owner = THIS_MODULE, + .name = "zfcp", + }, .ids = zfcp_ccw_device_id, .probe = zfcp_ccw_probe, .remove = zfcp_ccw_remove, -- cgit v1.2.3 From d5ab5276baf9fd8b581cfbf41b10b6d4eae55960 Mon Sep 17 00:00:00 2001 From: Sebastian Ott <sebott@linux.vnet.ibm.com> Date: Wed, 23 Mar 2011 10:16:03 +0100 Subject: [S390] ccw_bus_type: make it static Make ccw_bus_type static. ccw_device drivers have to use ccw_driver_register. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- drivers/s390/cio/device.c | 5 ++--- drivers/s390/cio/device.h | 1 - 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 334459eb23c8..df14c51f6532 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -127,7 +127,7 @@ static int ccw_uevent(struct device *dev, struct kobj_uevent_env *env) return ret; } -struct bus_type ccw_bus_type; +static struct bus_type ccw_bus_type; static void io_subchannel_irq(struct subchannel *); static int io_subchannel_probe(struct subchannel *); @@ -1970,7 +1970,7 @@ static const struct dev_pm_ops ccw_pm_ops = { .restore = ccw_device_pm_restore, }; -struct bus_type ccw_bus_type = { +static struct bus_type ccw_bus_type = { .name = "ccw", .match = ccw_bus_match, .uevent = ccw_uevent, @@ -2110,5 +2110,4 @@ EXPORT_SYMBOL(ccw_device_set_offline); EXPORT_SYMBOL(ccw_driver_register); EXPORT_SYMBOL(ccw_driver_unregister); EXPORT_SYMBOL(get_ccwdev_by_busid); -EXPORT_SYMBOL(ccw_bus_type); EXPORT_SYMBOL_GPL(ccw_device_get_subchannel_id); diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h index 379de2d1ec49..7e297c7bb5ff 100644 --- a/drivers/s390/cio/device.h +++ b/drivers/s390/cio/device.h @@ -133,7 +133,6 @@ void ccw_device_set_notoper(struct ccw_device *cdev); /* qdio needs this. */ void ccw_device_set_timeout(struct ccw_device *, int); extern struct subchannel_id ccw_device_get_subchannel_id(struct ccw_device *); -extern struct bus_type ccw_bus_type; /* Channel measurement facility related */ void retry_set_schib(struct ccw_device *cdev); -- cgit v1.2.3 From 3c190c51f55eab691e5d096747262d2653e67de1 Mon Sep 17 00:00:00 2001 From: Sebastian Ott <sebott@linux.vnet.ibm.com> Date: Wed, 23 Mar 2011 10:16:04 +0100 Subject: [S390] ccwgroup_driver: remove duplicate members Remove the owner and name members of struct ccwgroup_driver and convert all drivers to store this data in the embedded struct device_driver. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/include/asm/ccwgroup.h | 4 ---- drivers/s390/cio/ccwgroup.c | 6 ++---- drivers/s390/net/claw.c | 6 ++++-- drivers/s390/net/ctcm_main.c | 6 ++++-- drivers/s390/net/lcs.c | 6 ++++-- drivers/s390/net/qeth_core_main.c | 6 ++++-- 6 files changed, 18 insertions(+), 16 deletions(-) diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index c79c1e787b86..f2ea2c56a7e1 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -29,8 +29,6 @@ struct ccwgroup_device { /** * struct ccwgroup_driver - driver for ccw group devices - * @owner: driver owner - * @name: driver name * @max_slaves: maximum number of slave devices * @driver_id: unique id * @probe: function called on probe @@ -46,8 +44,6 @@ struct ccwgroup_device { * @driver: embedded driver structure */ struct ccwgroup_driver { - struct module *owner; - char *name; int max_slaves; unsigned long driver_id; diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 2864581d8ecb..5c567414c4bb 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -428,7 +428,7 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const gdev = to_ccwgroupdev(dev); gdrv = to_ccwgroupdrv(dev->driver); - if (!try_module_get(gdrv->owner)) + if (!try_module_get(gdrv->driver.owner)) return -EINVAL; ret = strict_strtoul(buf, 0, &value); @@ -442,7 +442,7 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const else ret = -EINVAL; out: - module_put(gdrv->owner); + module_put(gdrv->driver.owner); return (ret == 0) ? count : ret; } @@ -616,8 +616,6 @@ int ccwgroup_driver_register(struct ccwgroup_driver *cdriver) { /* register our new driver with the core */ cdriver->driver.bus = &ccwgroup_bus_type; - cdriver->driver.name = cdriver->name; - cdriver->driver.owner = cdriver->owner; return driver_register(&cdriver->driver); } diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c index 2e2d2dfe78db..9feb62febb3d 100644 --- a/drivers/s390/net/claw.c +++ b/drivers/s390/net/claw.c @@ -264,8 +264,10 @@ static struct device *claw_root_dev; /* ccwgroup table */ static struct ccwgroup_driver claw_group_driver = { - .owner = THIS_MODULE, - .name = "claw", + .driver = { + .owner = THIS_MODULE, + .name = "claw", + }, .max_slaves = 2, .driver_id = 0xC3D3C1E6, .probe = claw_probe, diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index 97fd4800ab12..c189296763a4 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -1774,8 +1774,10 @@ static struct ccw_driver ctcm_ccw_driver = { }; static struct ccwgroup_driver ctcm_group_driver = { - .owner = THIS_MODULE, - .name = CTC_DRIVER_NAME, + .driver = { + .owner = THIS_MODULE, + .name = CTC_DRIVER_NAME, + }, .max_slaves = 2, .driver_id = 0xC3E3C3D4, /* CTCM */ .probe = ctcm_probe_device, diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index f59429c3bc30..7fbc4adbb6d5 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -2409,8 +2409,10 @@ static struct ccw_driver lcs_ccw_driver = { * LCS ccwgroup driver registration */ static struct ccwgroup_driver lcs_group_driver = { - .owner = THIS_MODULE, - .name = "lcs", + .driver = { + .owner = THIS_MODULE, + .name = "lcs", + }, .max_slaves = 2, .driver_id = 0xD3C3E2, .probe = lcs_probe_device, diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 150b2cd99ba8..10a3a3b4dd3e 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -4430,8 +4430,10 @@ static int qeth_core_restore(struct ccwgroup_device *gdev) } static struct ccwgroup_driver qeth_core_ccwgroup_driver = { - .owner = THIS_MODULE, - .name = "qeth", + .driver = { + .owner = THIS_MODULE, + .name = "qeth", + }, .driver_id = 0xD8C5E3C8, .probe = qeth_core_probe_device, .remove = qeth_core_remove_device, -- cgit v1.2.3 From a2c9dbe8dbb8591ae6fd142e562813cd95d06609 Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:16:05 +0100 Subject: [S390] xchg/cmpxchg: move to own header file Move xchg() and cmpxchg() functions to own header file like some other architectures have done. With this we make sure that system.h now really looks like a place where everything is gathered that doesn't fit anywhere else. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/include/asm/cmpxchg.h | 205 ++++++++++++++++++++++++++++++++++++++++ arch/s390/include/asm/system.h | 196 +------------------------------------- 2 files changed, 206 insertions(+), 195 deletions(-) create mode 100644 arch/s390/include/asm/cmpxchg.h diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h new file mode 100644 index 000000000000..4052df9030cb --- /dev/null +++ b/arch/s390/include/asm/cmpxchg.h @@ -0,0 +1,205 @@ +/* + * Copyright IBM Corp. 1999, 2011 + * + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>, + */ + +#ifndef __ASM_CMPXCHG_H +#define __ASM_CMPXCHG_H + +#include <linux/types.h> + +extern void __xchg_called_with_bad_pointer(void); + +static inline unsigned long __xchg(unsigned long x, void *ptr, int size) +{ + unsigned long addr, old; + int shift; + + switch (size) { + case 1: + addr = (unsigned long) ptr; + shift = (3 ^ (addr & 3)) << 3; + addr ^= addr & 3; + asm volatile( + " l %0,%4\n" + "0: lr 0,%0\n" + " nr 0,%3\n" + " or 0,%2\n" + " cs %0,0,%4\n" + " jl 0b\n" + : "=&d" (old), "=Q" (*(int *) addr) + : "d" (x << shift), "d" (~(255 << shift)), + "Q" (*(int *) addr) : "memory", "cc", "0"); + return old >> shift; + case 2: + addr = (unsigned long) ptr; + shift = (2 ^ (addr & 2)) << 3; + addr ^= addr & 2; + asm volatile( + " l %0,%4\n" + "0: lr 0,%0\n" + " nr 0,%3\n" + " or 0,%2\n" + " cs %0,0,%4\n" + " jl 0b\n" + : "=&d" (old), "=Q" (*(int *) addr) + : "d" (x << shift), "d" (~(65535 << shift)), + "Q" (*(int *) addr) : "memory", "cc", "0"); + return old >> shift; + case 4: + asm volatile( + " l %0,%3\n" + "0: cs %0,%2,%3\n" + " jl 0b\n" + : "=&d" (old), "=Q" (*(int *) ptr) + : "d" (x), "Q" (*(int *) ptr) + : "memory", "cc"); + return old; +#ifdef CONFIG_64BIT + case 8: + asm volatile( + " lg %0,%3\n" + "0: csg %0,%2,%3\n" + " jl 0b\n" + : "=&d" (old), "=m" (*(long *) ptr) + : "d" (x), "Q" (*(long *) ptr) + : "memory", "cc"); + return old; +#endif /* CONFIG_64BIT */ + } + __xchg_called_with_bad_pointer(); + return x; +} + +#define xchg(ptr, x) \ +({ \ + __typeof__(*(ptr)) __ret; \ + __ret = (__typeof__(*(ptr))) \ + __xchg((unsigned long)(x), (void *)(ptr), sizeof(*(ptr)));\ + __ret; \ +}) + +/* + * Atomic compare and exchange. Compare OLD with MEM, if identical, + * store NEW in MEM. Return the initial value in MEM. Success is + * indicated by comparing RETURN with OLD. + */ + +#define __HAVE_ARCH_CMPXCHG + +extern void __cmpxchg_called_with_bad_pointer(void); + +static inline unsigned long __cmpxchg(void *ptr, unsigned long old, + unsigned long new, int size) +{ + unsigned long addr, prev, tmp; + int shift; + + switch (size) { + case 1: + addr = (unsigned long) ptr; + shift = (3 ^ (addr & 3)) << 3; + addr ^= addr & 3; + asm volatile( + " l %0,%2\n" + "0: nr %0,%5\n" + " lr %1,%0\n" + " or %0,%3\n" + " or %1,%4\n" + " cs %0,%1,%2\n" + " jnl 1f\n" + " xr %1,%0\n" + " nr %1,%5\n" + " jnz 0b\n" + "1:" + : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr) + : "d" (old << shift), "d" (new << shift), + "d" (~(255 << shift)), "Q" (*(int *) ptr) + : "memory", "cc"); + return prev >> shift; + case 2: + addr = (unsigned long) ptr; + shift = (2 ^ (addr & 2)) << 3; + addr ^= addr & 2; + asm volatile( + " l %0,%2\n" + "0: nr %0,%5\n" + " lr %1,%0\n" + " or %0,%3\n" + " or %1,%4\n" + " cs %0,%1,%2\n" + " jnl 1f\n" + " xr %1,%0\n" + " nr %1,%5\n" + " jnz 0b\n" + "1:" + : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr) + : "d" (old << shift), "d" (new << shift), + "d" (~(65535 << shift)), "Q" (*(int *) ptr) + : "memory", "cc"); + return prev >> shift; + case 4: + asm volatile( + " cs %0,%3,%1\n" + : "=&d" (prev), "=Q" (*(int *) ptr) + : "0" (old), "d" (new), "Q" (*(int *) ptr) + : "memory", "cc"); + return prev; +#ifdef CONFIG_64BIT + case 8: + asm volatile( + " csg %0,%3,%1\n" + : "=&d" (prev), "=Q" (*(long *) ptr) + : "0" (old), "d" (new), "Q" (*(long *) ptr) + : "memory", "cc"); + return prev; +#endif /* CONFIG_64BIT */ + } + __cmpxchg_called_with_bad_pointer(); + return old; +} + +#define cmpxchg(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ + (unsigned long)(n), sizeof(*(ptr)))) + +#include <asm-generic/cmpxchg-local.h> + +static inline unsigned long __cmpxchg_local(void *ptr, + unsigned long old, + unsigned long new, int size) +{ + switch (size) { + case 1: + case 2: + case 4: +#ifdef CONFIG_64BIT + case 8: +#endif + return __cmpxchg(ptr, old, new, size); + default: + return __cmpxchg_local_generic(ptr, old, new, size); + } + + return old; +} + +/* + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make + * them available. + */ +#define cmpxchg_local(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ + (unsigned long)(n), sizeof(*(ptr)))) +#ifdef CONFIG_64BIT +#define cmpxchg64_local(ptr, o, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg_local((ptr), (o), (n)); \ +}) +#else +#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) +#endif + +#endif /* __ASM_CMPXCHG_H */ diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h index 8f8d759f6a7b..d382629a0172 100644 --- a/arch/s390/include/asm/system.h +++ b/arch/s390/include/asm/system.h @@ -14,6 +14,7 @@ #include <asm/setup.h> #include <asm/processor.h> #include <asm/lowcore.h> +#include <asm/cmpxchg.h> #ifdef __KERNEL__ @@ -120,161 +121,6 @@ extern int memcpy_real(void *, void *, size_t); #define nop() asm volatile("nop") -#define xchg(ptr,x) \ -({ \ - __typeof__(*(ptr)) __ret; \ - __ret = (__typeof__(*(ptr))) \ - __xchg((unsigned long)(x), (void *)(ptr),sizeof(*(ptr))); \ - __ret; \ -}) - -extern void __xchg_called_with_bad_pointer(void); - -static inline unsigned long __xchg(unsigned long x, void * ptr, int size) -{ - unsigned long addr, old; - int shift; - - switch (size) { - case 1: - addr = (unsigned long) ptr; - shift = (3 ^ (addr & 3)) << 3; - addr ^= addr & 3; - asm volatile( - " l %0,%4\n" - "0: lr 0,%0\n" - " nr 0,%3\n" - " or 0,%2\n" - " cs %0,0,%4\n" - " jl 0b\n" - : "=&d" (old), "=Q" (*(int *) addr) - : "d" (x << shift), "d" (~(255 << shift)), - "Q" (*(int *) addr) : "memory", "cc", "0"); - return old >> shift; - case 2: - addr = (unsigned long) ptr; - shift = (2 ^ (addr & 2)) << 3; - addr ^= addr & 2; - asm volatile( - " l %0,%4\n" - "0: lr 0,%0\n" - " nr 0,%3\n" - " or 0,%2\n" - " cs %0,0,%4\n" - " jl 0b\n" - : "=&d" (old), "=Q" (*(int *) addr) - : "d" (x << shift), "d" (~(65535 << shift)), - "Q" (*(int *) addr) : "memory", "cc", "0"); - return old >> shift; - case 4: - asm volatile( - " l %0,%3\n" - "0: cs %0,%2,%3\n" - " jl 0b\n" - : "=&d" (old), "=Q" (*(int *) ptr) - : "d" (x), "Q" (*(int *) ptr) - : "memory", "cc"); - return old; -#ifdef __s390x__ - case 8: - asm volatile( - " lg %0,%3\n" - "0: csg %0,%2,%3\n" - " jl 0b\n" - : "=&d" (old), "=m" (*(long *) ptr) - : "d" (x), "Q" (*(long *) ptr) - : "memory", "cc"); - return old; -#endif /* __s390x__ */ - } - __xchg_called_with_bad_pointer(); - return x; -} - -/* - * Atomic compare and exchange. Compare OLD with MEM, if identical, - * store NEW in MEM. Return the initial value in MEM. Success is - * indicated by comparing RETURN with OLD. - */ - -#define __HAVE_ARCH_CMPXCHG 1 - -#define cmpxchg(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) - -extern void __cmpxchg_called_with_bad_pointer(void); - -static inline unsigned long -__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) -{ - unsigned long addr, prev, tmp; - int shift; - - switch (size) { - case 1: - addr = (unsigned long) ptr; - shift = (3 ^ (addr & 3)) << 3; - addr ^= addr & 3; - asm volatile( - " l %0,%2\n" - "0: nr %0,%5\n" - " lr %1,%0\n" - " or %0,%3\n" - " or %1,%4\n" - " cs %0,%1,%2\n" - " jnl 1f\n" - " xr %1,%0\n" - " nr %1,%5\n" - " jnz 0b\n" - "1:" - : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr) - : "d" (old << shift), "d" (new << shift), - "d" (~(255 << shift)), "Q" (*(int *) ptr) - : "memory", "cc"); - return prev >> shift; - case 2: - addr = (unsigned long) ptr; - shift = (2 ^ (addr & 2)) << 3; - addr ^= addr & 2; - asm volatile( - " l %0,%2\n" - "0: nr %0,%5\n" - " lr %1,%0\n" - " or %0,%3\n" - " or %1,%4\n" - " cs %0,%1,%2\n" - " jnl 1f\n" - " xr %1,%0\n" - " nr %1,%5\n" - " jnz 0b\n" - "1:" - : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr) - : "d" (old << shift), "d" (new << shift), - "d" (~(65535 << shift)), "Q" (*(int *) ptr) - : "memory", "cc"); - return prev >> shift; - case 4: - asm volatile( - " cs %0,%3,%1\n" - : "=&d" (prev), "=Q" (*(int *) ptr) - : "0" (old), "d" (new), "Q" (*(int *) ptr) - : "memory", "cc"); - return prev; -#ifdef __s390x__ - case 8: - asm volatile( - " csg %0,%3,%1\n" - : "=&d" (prev), "=Q" (*(long *) ptr) - : "0" (old), "d" (new), "Q" (*(long *) ptr) - : "memory", "cc"); - return prev; -#endif /* __s390x__ */ - } - __cmpxchg_called_with_bad_pointer(); - return old; -} - /* * Force strict CPU ordering. * And yes, this is required on UP too when we're talking @@ -353,46 +199,6 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) __ctl_load(__dummy, cr, cr); \ }) -#include <linux/irqflags.h> - -#include <asm-generic/cmpxchg-local.h> - -static inline unsigned long __cmpxchg_local(volatile void *ptr, - unsigned long old, - unsigned long new, int size) -{ - switch (size) { - case 1: - case 2: - case 4: -#ifdef __s390x__ - case 8: -#endif - return __cmpxchg(ptr, old, new, size); - default: - return __cmpxchg_local_generic(ptr, old, new, size); - } - - return old; -} - -/* - * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make - * them available. - */ -#define cmpxchg_local(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) -#ifdef __s390x__ -#define cmpxchg64_local(ptr, o, n) \ - ({ \ - BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg_local((ptr), (o), (n)); \ - }) -#else -#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) -#endif - /* * Use to set psw mask except for the first byte which * won't be changed by this function. -- cgit v1.2.3 From 54eaae3028e6b09de0bd2232a8176fc0d0a2397a Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Wed, 23 Mar 2011 10:16:06 +0100 Subject: [S390] cmpxchg: implement cmpxchg64() We have a cmpxchg64_local() implementation but strange enough the SMP capable variant cmpxchg64() is missing. So implement it. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/include/asm/cmpxchg.h | 38 +++++++++++++++++++++++++++++--------- 1 file changed, 29 insertions(+), 9 deletions(-) diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h index 4052df9030cb..7488e52efa97 100644 --- a/arch/s390/include/asm/cmpxchg.h +++ b/arch/s390/include/asm/cmpxchg.h @@ -164,6 +164,33 @@ static inline unsigned long __cmpxchg(void *ptr, unsigned long old, ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ (unsigned long)(n), sizeof(*(ptr)))) +#ifdef CONFIG_64BIT +#define cmpxchg64(ptr, o, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg((ptr), (o), (n)); \ +}) +#else /* CONFIG_64BIT */ +static inline unsigned long long __cmpxchg64(void *ptr, + unsigned long long old, + unsigned long long new) +{ + register_pair rp_old = {.pair = old}; + register_pair rp_new = {.pair = new}; + + asm volatile( + " cds %0,%2,%1" + : "+&d" (rp_old), "=Q" (ptr) + : "d" (rp_new), "Q" (ptr) + : "cc"); + return rp_old.pair; +} +#define cmpxchg64(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg64((ptr), \ + (unsigned long long)(o), \ + (unsigned long long)(n))) +#endif /* CONFIG_64BIT */ + #include <asm-generic/cmpxchg-local.h> static inline unsigned long __cmpxchg_local(void *ptr, @@ -192,14 +219,7 @@ static inline unsigned long __cmpxchg_local(void *ptr, #define cmpxchg_local(ptr, o, n) \ ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ (unsigned long)(n), sizeof(*(ptr)))) -#ifdef CONFIG_64BIT -#define cmpxchg64_local(ptr, o, n) \ -({ \ - BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg_local((ptr), (o), (n)); \ -}) -#else -#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) -#endif + +#define cmpxchg64_local(ptr, o, n) cmpxchg64((ptr), (o), (n)) #endif /* __ASM_CMPXCHG_H */ -- cgit v1.2.3 From 48898b038b69ef4801f0e059026c8f6920684677 Mon Sep 17 00:00:00 2001 From: Takashi Iwai <tiwai@suse.de> Date: Fri, 18 Mar 2011 09:06:49 +0000 Subject: drm/i915/dp: Correct the order of deletion for ghost eDP devices The order of the calls does matter indeed. Swapping the call order of intel_dp_destroy() and intel_dp_encoder_destroy() fixes the problem. This is because i2c_del_adapter unregisters the device which parent is intel_connector, and connectors are removed in intel_dp_destroy(). Thus intel_dp_encoder_destroy() must be called before intel_dp_destroy(). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=24822 Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Keith Packard <keithp@keithp.com> --- drivers/gpu/drm/i915/intel_dp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index d29e33f815d7..0daefca5cbb8 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1957,9 +1957,9 @@ intel_dp_init(struct drm_device *dev, int output_reg) DP_NO_AUX_HANDSHAKE_LINK_TRAINING; } else { /* if this fails, presume the device is a ghost */ - DRM_ERROR("failed to retrieve link info\n"); - intel_dp_destroy(&intel_connector->base); + DRM_INFO("failed to retrieve link info, disabling eDP\n"); intel_dp_encoder_destroy(&intel_dp->base.base); + intel_dp_destroy(&intel_connector->base); return; } } -- cgit v1.2.3 From e281fcaa287fb39ce26d9aa33a716c2a7bb8484e Mon Sep 17 00:00:00 2001 From: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Fri, 18 Mar 2011 10:32:07 -0700 Subject: drm/i915: report correct render clock frequencies on SNB Fix up the debug file to report the right frequencies. On SNB, we program the PCU with a frequency ratio, which is multiplied by 100MHz on the CPU side. But GFX only runs at half that, so report it as such to avoid confusion. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Keith Packard <keithp@keithp.com> --- drivers/gpu/drm/i915/i915_debugfs.c | 8 ++++---- drivers/gpu/drm/i915/intel_display.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 09e0327fc6ce..87c8e29465e3 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -892,7 +892,7 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused) seq_printf(m, "Render p-state limit: %d\n", rp_state_limits & 0xff); seq_printf(m, "CAGF: %dMHz\n", ((rpstat & GEN6_CAGF_MASK) >> - GEN6_CAGF_SHIFT) * 100); + GEN6_CAGF_SHIFT) * 50); seq_printf(m, "RP CUR UP EI: %dus\n", rpupei & GEN6_CURICONT_MASK); seq_printf(m, "RP CUR UP: %dus\n", rpcurup & @@ -908,15 +908,15 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused) max_freq = (rp_state_cap & 0xff0000) >> 16; seq_printf(m, "Lowest (RPN) frequency: %dMHz\n", - max_freq * 100); + max_freq * 50); max_freq = (rp_state_cap & 0xff00) >> 8; seq_printf(m, "Nominal (RP1) frequency: %dMHz\n", - max_freq * 100); + max_freq * 50); max_freq = rp_state_cap & 0xff; seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n", - max_freq * 100); + max_freq * 50); __gen6_gt_force_wake_put(dev_priv); } else { diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 49c07231302c..432fc04c6bff 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6930,7 +6930,7 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv) DRM_ERROR("timeout waiting for pcode mailbox to finish\n"); if (pcu_mbox & (1<<31)) { /* OC supported */ max_freq = pcu_mbox & 0xff; - DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 100); + DRM_DEBUG_DRIVER("overclocking supported, adjusting frequency max to %dMHz\n", pcu_mbox * 50); } /* In units of 100MHz */ -- cgit v1.2.3 From ed0291fd16f6349ef43d3f25a4626c2f7baf568b Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Sat, 19 Mar 2011 08:21:45 +0000 Subject: drm/i915: Fix computation of pitch for dumb bo creator Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> --- drivers/gpu/drm/i915/i915_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index c5dfb59e13d3..0b99c30bb19c 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -224,7 +224,7 @@ i915_gem_dumb_create(struct drm_file *file, struct drm_mode_create_dumb *args) { /* have to work out size/pitch and return them */ - args->pitch = ALIGN(args->width & ((args->bpp + 1) / 8), 64); + args->pitch = ALIGN(args->width * ((args->bpp + 7) / 8), 64); args->size = args->pitch * args->height; return i915_gem_create(file, dev, args->size, &args->handle); -- cgit v1.2.3 From d4aeee776017b6da6dcd12f453cd82a3c951a0dc Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Mon, 14 Mar 2011 15:11:24 +0000 Subject: drm/i915: Disable pagefaults along execbuffer relocation fast path Along the fast path for relocation handling, we attempt to copy directly from the user data structures whilst holding our mutex. This causes lockdep to warn about circular lock dependencies if we need to pagefault the user pages. [Since when handling a page fault on a mmapped bo, we need to acquire the struct mutex whilst already holding the mm semaphore, it is then verboten to acquire the mm semaphore when already holding the struct mutex. The likelihood of the user passing in the relocations contained in a GTT mmaped bo is low, but conceivable for extreme pathology.] In order to force the mm to return EFAULT rather than handle the pagefault, we therefore need to disable pagefaults across the relocation fast path. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> --- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 7ff7f933ddf1..20a4cc5b818f 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -367,6 +367,10 @@ i915_gem_execbuffer_relocate_entry(struct drm_i915_gem_object *obj, uint32_t __iomem *reloc_entry; void __iomem *reloc_page; + /* We can't wait for rendering with pagefaults disabled */ + if (obj->active && in_atomic()) + return -EFAULT; + ret = i915_gem_object_set_to_gtt_domain(obj, 1); if (ret) return ret; @@ -440,15 +444,24 @@ i915_gem_execbuffer_relocate(struct drm_device *dev, struct list_head *objects) { struct drm_i915_gem_object *obj; - int ret; - + int ret = 0; + + /* This is the fast path and we cannot handle a pagefault whilst + * holding the struct mutex lest the user pass in the relocations + * contained within a mmaped bo. For in such a case we, the page + * fault handler would call i915_gem_fault() and we would try to + * acquire the struct mutex again. Obviously this is bad and so + * lockdep complains vehemently. + */ + pagefault_disable(); list_for_each_entry(obj, objects, exec_list) { ret = i915_gem_execbuffer_relocate_object(obj, eb); if (ret) - return ret; + break; } + pagefault_enable(); - return 0; + return ret; } static int -- cgit v1.2.3 From 36d527deadf7d0c302e3452dde39465e74a65a08 Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Sat, 19 Mar 2011 22:26:49 +0000 Subject: drm/i915: Restore missing command flush before interrupt on BLT ring We always skipped flushing the BLT ring if the request flush did not include the RENDER domain. However, this neglects that we try to flush the COMMAND domain after every batch and before the breadcrumb interrupt (to make sure the batch is indeed completed prior to the interrupt firing and so insuring CPU coherency). As a result of the missing flush, incoherency did indeed creep in, most notable when using lots of command buffers and so potentially rewritting an active command buffer (i.e. the GPU was still executing from it even though the following interrupt had already fired and the request/buffer retired). As all ring->flush routines now have the same preconditions, de-duplicate and move those checks up into i915_gem_flush_ring(). Fixes gem_linear_blit. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=35284 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Tested-by: mengmeng.meng@intel.com --- drivers/gpu/drm/i915/i915_gem.c | 7 +- drivers/gpu/drm/i915/intel_ringbuffer.c | 109 ++++++++++++++------------------ 2 files changed, 55 insertions(+), 61 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 0b99c30bb19c..edd6098743b2 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2219,13 +2219,18 @@ i915_gem_flush_ring(struct intel_ring_buffer *ring, { int ret; + if (((invalidate_domains | flush_domains) & I915_GEM_GPU_DOMAINS) == 0) + return 0; + trace_i915_gem_ring_flush(ring, invalidate_domains, flush_domains); ret = ring->flush(ring, invalidate_domains, flush_domains); if (ret) return ret; - i915_gem_process_flushing_list(ring, flush_domains); + if (flush_domains & I915_GEM_GPU_DOMAINS) + i915_gem_process_flushing_list(ring, flush_domains); + return 0; } diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 789c47801ba8..e9e6f71418a4 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -65,62 +65,60 @@ render_ring_flush(struct intel_ring_buffer *ring, u32 cmd; int ret; - if ((invalidate_domains | flush_domains) & I915_GEM_GPU_DOMAINS) { + /* + * read/write caches: + * + * I915_GEM_DOMAIN_RENDER is always invalidated, but is + * only flushed if MI_NO_WRITE_FLUSH is unset. On 965, it is + * also flushed at 2d versus 3d pipeline switches. + * + * read-only caches: + * + * I915_GEM_DOMAIN_SAMPLER is flushed on pre-965 if + * MI_READ_FLUSH is set, and is always flushed on 965. + * + * I915_GEM_DOMAIN_COMMAND may not exist? + * + * I915_GEM_DOMAIN_INSTRUCTION, which exists on 965, is + * invalidated when MI_EXE_FLUSH is set. + * + * I915_GEM_DOMAIN_VERTEX, which exists on 965, is + * invalidated with every MI_FLUSH. + * + * TLBs: + * + * On 965, TLBs associated with I915_GEM_DOMAIN_COMMAND + * and I915_GEM_DOMAIN_CPU in are invalidated at PTE write and + * I915_GEM_DOMAIN_RENDER and I915_GEM_DOMAIN_SAMPLER + * are flushed at any MI_FLUSH. + */ + + cmd = MI_FLUSH | MI_NO_WRITE_FLUSH; + if ((invalidate_domains|flush_domains) & + I915_GEM_DOMAIN_RENDER) + cmd &= ~MI_NO_WRITE_FLUSH; + if (INTEL_INFO(dev)->gen < 4) { /* - * read/write caches: - * - * I915_GEM_DOMAIN_RENDER is always invalidated, but is - * only flushed if MI_NO_WRITE_FLUSH is unset. On 965, it is - * also flushed at 2d versus 3d pipeline switches. - * - * read-only caches: - * - * I915_GEM_DOMAIN_SAMPLER is flushed on pre-965 if - * MI_READ_FLUSH is set, and is always flushed on 965. - * - * I915_GEM_DOMAIN_COMMAND may not exist? - * - * I915_GEM_DOMAIN_INSTRUCTION, which exists on 965, is - * invalidated when MI_EXE_FLUSH is set. - * - * I915_GEM_DOMAIN_VERTEX, which exists on 965, is - * invalidated with every MI_FLUSH. - * - * TLBs: - * - * On 965, TLBs associated with I915_GEM_DOMAIN_COMMAND - * and I915_GEM_DOMAIN_CPU in are invalidated at PTE write and - * I915_GEM_DOMAIN_RENDER and I915_GEM_DOMAIN_SAMPLER - * are flushed at any MI_FLUSH. + * On the 965, the sampler cache always gets flushed + * and this bit is reserved. */ + if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER) + cmd |= MI_READ_FLUSH; + } + if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION) + cmd |= MI_EXE_FLUSH; - cmd = MI_FLUSH | MI_NO_WRITE_FLUSH; - if ((invalidate_domains|flush_domains) & - I915_GEM_DOMAIN_RENDER) - cmd &= ~MI_NO_WRITE_FLUSH; - if (INTEL_INFO(dev)->gen < 4) { - /* - * On the 965, the sampler cache always gets flushed - * and this bit is reserved. - */ - if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER) - cmd |= MI_READ_FLUSH; - } - if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION) - cmd |= MI_EXE_FLUSH; - - if (invalidate_domains & I915_GEM_DOMAIN_COMMAND && - (IS_G4X(dev) || IS_GEN5(dev))) - cmd |= MI_INVALIDATE_ISP; + if (invalidate_domains & I915_GEM_DOMAIN_COMMAND && + (IS_G4X(dev) || IS_GEN5(dev))) + cmd |= MI_INVALIDATE_ISP; - ret = intel_ring_begin(ring, 2); - if (ret) - return ret; + ret = intel_ring_begin(ring, 2); + if (ret) + return ret; - intel_ring_emit(ring, cmd); - intel_ring_emit(ring, MI_NOOP); - intel_ring_advance(ring); - } + intel_ring_emit(ring, cmd); + intel_ring_emit(ring, MI_NOOP); + intel_ring_advance(ring); return 0; } @@ -568,9 +566,6 @@ bsd_ring_flush(struct intel_ring_buffer *ring, { int ret; - if ((flush_domains & I915_GEM_DOMAIN_RENDER) == 0) - return 0; - ret = intel_ring_begin(ring, 2); if (ret) return ret; @@ -1056,9 +1051,6 @@ static int gen6_ring_flush(struct intel_ring_buffer *ring, uint32_t cmd; int ret; - if (((invalidate | flush) & I915_GEM_GPU_DOMAINS) == 0) - return 0; - ret = intel_ring_begin(ring, 4); if (ret) return ret; @@ -1230,9 +1222,6 @@ static int blt_ring_flush(struct intel_ring_buffer *ring, uint32_t cmd; int ret; - if (((invalidate | flush) & I915_GEM_DOMAIN_RENDER) == 0) - return 0; - ret = blt_ring_begin(ring, 4); if (ret) return ret; -- cgit v1.2.3 From 26e12f894317bf0221fed40bef6f937538a78c0b Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Sun, 20 Mar 2011 11:20:19 +0000 Subject: drm/i915: Fix use after free within tracepoint Detected by scripts/coccinelle/free/kfree.cocci. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Keith Packard <keithp@keithp.com> --- drivers/gpu/drm/i915/i915_gem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index edd6098743b2..c9bdaf208a91 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3603,6 +3603,8 @@ static void i915_gem_free_object_tail(struct drm_i915_gem_object *obj) return; } + trace_i915_gem_object_destroy(obj); + if (obj->base.map_list.map) i915_gem_free_mmap_offset(obj); @@ -3612,8 +3614,6 @@ static void i915_gem_free_object_tail(struct drm_i915_gem_object *obj) kfree(obj->page_cpu_valid); kfree(obj->bit_17); kfree(obj); - - trace_i915_gem_object_destroy(obj); } void i915_gem_free_object(struct drm_gem_object *gem_obj) -- cgit v1.2.3 From f6e47884e7f588094bf7b824c839a9ee33f2aa55 Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Sun, 20 Mar 2011 21:09:12 +0000 Subject: drm/i915: Avoid unmapping pages from a NULL address space Found by gem_stress. As we perform retirement from a workqueue, it is possible for us to free and unbind objects after the last close on the device, and so after the address space has been torn down and reset to NULL: BUG: unable to handle kernel NULL pointer dereference at 00000054 IP: [<c1295a20>] mutex_lock+0xf/0x27 *pde = 00000000 Oops: 0002 [#1] SMP last sysfs file: /sys/module/vt/parameters/default_utf8 Pid: 5, comm: kworker/u:0 Not tainted 2.6.38+ #214 EIP: 0060:[<c1295a20>] EFLAGS: 00010206 CPU: 1 EIP is at mutex_lock+0xf/0x27 EAX: 00000054 EBX: 00000054 ECX: 00000000 EDX: 00012fff ESI: 00000028 EDI: 00000000 EBP: f706fe20 ESP: f706fe18 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Process kworker/u:0 (pid: 5, ti=f706e000 task=f7060d00 task.ti=f706e000) Stack: f5aa3c60 00000000 f706fe74 c107e7df 00000246 dea55380 00000054 f5aa3c60 f706fe44 00000061 f70b4000 c13fff84 00000008 f706fe54 00000000 00000000 00012f00 00012fff 00000028 c109e575 f6b36700 00100000 00000000 f706fe90 Call Trace: [<c107e7df>] unmap_mapping_range+0x7d/0x1e6 [<c109e575>] ? mntput_no_expire+0x52/0xb6 [<c11c12f6>] i915_gem_release_mmap+0x49/0x58 [<c11c3449>] i915_gem_object_unbind+0x4c/0x125 [<c11c353f>] i915_gem_free_object_tail+0x1d/0xdb [<c11c55a2>] i915_gem_free_object+0x3d/0x41 [<c11a6be2>] ? drm_gem_object_free+0x0/0x27 [<c11a6c07>] drm_gem_object_free+0x25/0x27 [<c113c3ca>] kref_put+0x39/0x42 [<c11c0a59>] drm_gem_object_unreference+0x16/0x18 [<c11c0b15>] i915_gem_object_move_to_inactive+0xba/0xbe [<c11c0c87>] i915_gem_retire_requests_ring+0x16e/0x1a5 [<c11c3645>] i915_gem_retire_requests+0x48/0x63 [<c11c36ac>] i915_gem_retire_work_handler+0x4c/0x117 [<c10385d1>] process_one_work+0x140/0x21b [<c103734c>] ? __need_more_worker+0x13/0x2a [<c10373b1>] ? need_to_create_worker+0x1c/0x35 [<c11c3660>] ? i915_gem_retire_work_handler+0x0/0x117 [<c1038faf>] worker_thread+0xd4/0x14b [<c1038edb>] ? worker_thread+0x0/0x14b [<c103be1b>] kthread+0x68/0x6d [<c103bdb3>] ? kthread+0x0/0x6d [<c12970f6>] kernel_thread_helper+0x6/0x10 Code: 00 e8 98 fe ff ff 5d c3 55 89 e5 3e 8d 74 26 00 ba 01 00 00 00 e8 84 fe ff ff 5d c3 55 89 e5 53 8d 64 24 fc 3e 8d 74 26 00 89 c3 <f0> ff 08 79 05 e8 ab ff ff ff 89 e0 25 00 e0 ff ff 89 43 10 58 EIP: [<c1295a20>] mutex_lock+0xf/0x27 SS:ESP 0068:f706fe18 CR2: 0000000000000054 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Keith Packard <keithp@keithp.com> --- drivers/gpu/drm/i915/i915_gem.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index c9bdaf208a91..7ce3f353af33 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1356,9 +1356,10 @@ i915_gem_release_mmap(struct drm_i915_gem_object *obj) if (!obj->fault_mappable) return; - unmap_mapping_range(obj->base.dev->dev_mapping, - (loff_t)obj->base.map_list.hash.key<<PAGE_SHIFT, - obj->base.size, 1); + if (obj->base.dev->dev_mapping) + unmap_mapping_range(obj->base.dev->dev_mapping, + (loff_t)obj->base.map_list.hash.key<<PAGE_SHIFT, + obj->base.size, 1); obj->fault_mappable = false; } -- cgit v1.2.3 From ce2d17ca7f85dcade62cd608601a0d52ccdaf0e6 Mon Sep 17 00:00:00 2001 From: Akihiro Nagai <akihiro.nagai.hw@hitachi.com> Date: Wed, 23 Mar 2011 16:29:39 +0900 Subject: perf top: Fix uninitialized 'counter' variable builtin-top.c has an uninitialized variable. gcc(version 4.5.1) warns about it and it results in build failure: builtin-top.c: In function 'display_thread': builtin-top.c:518:9: error: 'counter' may be used uninitialized This situation can indeed trigger, if the getline() call in prompt_integer() fails. Signed-off-by: Akihiro Nagai <akihiro.nagai.hw@hitachi.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20110323072939.11638.50173.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- tools/perf/builtin-top.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 70f1075cc5b0..676b4fb0070f 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -515,7 +515,9 @@ static void handle_keypress(struct perf_session *session, int c) break; case 'E': if (top.evlist->nr_entries > 1) { - int counter; + /* Select 0 as the default event: */ + int counter = 0; + fprintf(stderr, "\nAvailable events:"); list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) -- cgit v1.2.3 From e815f0a84fc9a98e5cc3ef0b520122e5e18520e7 Mon Sep 17 00:00:00 2001 From: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Date: Mon, 21 Mar 2011 20:24:47 +0100 Subject: sched.h: Fix a typo ("its") MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The sentence uses the possessive pronoun, which is spelled without an apostrophe. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Cc: Jiri Kosina <trivial@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <1300735487-2406-1-git-send-email-j.neuschaefer@gmx.net> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- include/linux/sched.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index c15936fe998b..e89f1292c301 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -516,7 +516,7 @@ struct thread_group_cputimer { struct autogroup; /* - * NOTE! "signal_struct" does not have it's own + * NOTE! "signal_struct" does not have its own * locking, because a shared signal_struct always * implies a shared sighand_struct, so locking * sighand_struct is always a proper superset of -- cgit v1.2.3 From 20dd67407160eac577656cd2f8ee9a1fead960b8 Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Date: Wed, 23 Mar 2011 13:17:23 +0200 Subject: sched: Remove unused 'rq' variable and cpu_rq() call from alloc_fair_sched_group() Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20110323111722.GA4244@swordfish.minsk.epam.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- kernel/sched.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index 052120d67706..a361e20ec2cd 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -8443,7 +8443,6 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent) { struct cfs_rq *cfs_rq; struct sched_entity *se; - struct rq *rq; int i; tg->cfs_rq = kzalloc(sizeof(cfs_rq) * nr_cpu_ids, GFP_KERNEL); @@ -8456,8 +8455,6 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent) tg->shares = NICE_0_LOAD; for_each_possible_cpu(i) { - rq = cpu_rq(i); - cfs_rq = kzalloc_node(sizeof(struct cfs_rq), GFP_KERNEL, cpu_to_node(i)); if (!cfs_rq) -- cgit v1.2.3 From dec2960827c85253d76938dbfa909df3be34958b Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Date: Wed, 23 Mar 2011 14:38:28 +0200 Subject: lockdep: Remove unused 'factor' variable from lockdep_stats_show() Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20110323123828.GB4244@swordfish.minsk.epam.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- kernel/lockdep_proc.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c index 1969d2fc4b36..71edd2f60c02 100644 --- a/kernel/lockdep_proc.c +++ b/kernel/lockdep_proc.c @@ -225,7 +225,7 @@ static int lockdep_stats_show(struct seq_file *m, void *v) nr_irq_read_safe = 0, nr_irq_read_unsafe = 0, nr_softirq_read_safe = 0, nr_softirq_read_unsafe = 0, nr_hardirq_read_safe = 0, nr_hardirq_read_unsafe = 0, - sum_forward_deps = 0, factor = 0; + sum_forward_deps = 0; list_for_each_entry(class, &all_lock_classes, lock_entry) { @@ -283,13 +283,6 @@ static int lockdep_stats_show(struct seq_file *m, void *v) nr_hardirq_unsafe * nr_hardirq_safe + nr_list_entries); - /* - * Estimated factor between direct and indirect - * dependencies: - */ - if (nr_list_entries) - factor = sum_forward_deps / nr_list_entries; - #ifdef CONFIG_PROVE_LOCKING seq_printf(m, " dependency chains: %11lu [max: %lu]\n", nr_lock_chains, MAX_LOCKDEP_CHAINS); -- cgit v1.2.3 From 1232d6132a986125f6a687ab9b61a4330e319270 Mon Sep 17 00:00:00 2001 From: Borislav Petkov <borislav.petkov@amd.com> Date: Tue, 22 Mar 2011 18:46:18 +0100 Subject: sched, doc: Update sched-design-CFS.txt Correct ->dequeue_tree() thinko into sched_class->dequeue_task and drop all references to ->task_new() since it is obviously gone. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1300815978-16618-1-git-send-email-bp@amd64.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- Documentation/scheduler/sched-design-CFS.txt | 7 +------ kernel/sched_idletask.c | 2 -- kernel/sched_stoptask.c | 2 -- 3 files changed, 1 insertion(+), 10 deletions(-) diff --git a/Documentation/scheduler/sched-design-CFS.txt b/Documentation/scheduler/sched-design-CFS.txt index 8239ebbcddce..99961993257a 100644 --- a/Documentation/scheduler/sched-design-CFS.txt +++ b/Documentation/scheduler/sched-design-CFS.txt @@ -164,7 +164,7 @@ This is the (partial) list of the hooks: It puts the scheduling entity (task) into the red-black tree and increments the nr_running variable. - - dequeue_tree(...) + - dequeue_task(...) When a task is no longer runnable, this function is called to keep the corresponding scheduling entity out of the red-black tree. It decrements @@ -195,11 +195,6 @@ This is the (partial) list of the hooks: This function is mostly called from time tick functions; it might lead to process switch. This drives the running preemption. - - task_new(...) - - The core scheduler gives the scheduling module an opportunity to manage new - task startup. The CFS scheduling module uses it for group scheduling, while - the scheduling module for a real-time task does not use it. diff --git a/kernel/sched_idletask.c b/kernel/sched_idletask.c index c82f26c1b7c3..a776a6396427 100644 --- a/kernel/sched_idletask.c +++ b/kernel/sched_idletask.c @@ -94,6 +94,4 @@ static const struct sched_class idle_sched_class = { .prio_changed = prio_changed_idle, .switched_to = switched_to_idle, - - /* no .task_new for idle tasks */ }; diff --git a/kernel/sched_stoptask.c b/kernel/sched_stoptask.c index 84ec9bcf82d9..1ba2bd40fdac 100644 --- a/kernel/sched_stoptask.c +++ b/kernel/sched_stoptask.c @@ -102,6 +102,4 @@ static const struct sched_class stop_sched_class = { .prio_changed = prio_changed_stop, .switched_to = switched_to_stop, - - /* no .task_new for stop tasks */ }; -- cgit v1.2.3 From 68cacd29167b1926d237bd1b153aa2a990201729 Mon Sep 17 00:00:00 2001 From: Stephane Eranian <eranian@google.com> Date: Wed, 23 Mar 2011 16:03:06 +0100 Subject: perf_events: Fix stale ->cgrp pointer in update_cgrp_time_from_cpuctx() This patch solves a stale pointer problem in update_cgrp_time_from_cpuctx(). The cpuctx->cgrp was not cleared on all possible event exit paths, including: close() perf_release() perf_release_kernel() list_del_event() This patch fixes list_del_event() to clear cpuctx->cgrp when there are no cgroup events left in the context. [ This second version makes the code compile when CONFIG_CGROUP_PERF is not enabled. We unconditionally define perf_cpu_context->cgrp. ] Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: perfmon2-devel@lists.sf.net Cc: paulus@samba.org Cc: davem@davemloft.net LKML-Reference: <20110323150306.GA1580@quad> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- include/linux/perf_event.h | 2 -- kernel/perf_event.c | 12 +++++++++++- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index f495c0147240..311b4dc785a1 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -938,9 +938,7 @@ struct perf_cpu_context { struct list_head rotation_list; int jiffies_interval; struct pmu *active_pmu; -#ifdef CONFIG_CGROUP_PERF struct perf_cgroup *cgrp; -#endif }; struct perf_output_handle { diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 3472bb1a070c..0c714226ae0c 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -941,6 +941,7 @@ static void perf_group_attach(struct perf_event *event) static void list_del_event(struct perf_event *event, struct perf_event_context *ctx) { + struct perf_cpu_context *cpuctx; /* * We can have double detach due to exit/hot-unplug + close. */ @@ -949,8 +950,17 @@ list_del_event(struct perf_event *event, struct perf_event_context *ctx) event->attach_state &= ~PERF_ATTACH_CONTEXT; - if (is_cgroup_event(event)) + if (is_cgroup_event(event)) { ctx->nr_cgroups--; + cpuctx = __get_cpu_context(ctx); + /* + * if there are no more cgroup events + * then cler cgrp to avoid stale pointer + * in update_cgrp_time_from_cpuctx() + */ + if (!ctx->nr_cgroups) + cpuctx->cgrp = NULL; + } ctx->nr_events--; if (event->attr.inherit_stat) -- cgit v1.2.3 From 877a55979c189c590e819a61cbbe2b7947875f17 Mon Sep 17 00:00:00 2001 From: John Hughes <john@Calva.COM> Date: Wed, 4 Nov 2009 19:01:22 +0100 Subject: [SCSI] ses: show devices for enclosures with no page 7 enclosure page 7 gives us the "pretty" names of the enclosure slots. Without a page 7, we can still use the enclosure code as long as we make up numeric names for the slots. Unfortunately, the current code fails to add any devices because the check for page 10 is in the wrong place if we have no page 7. Fix it so that devices show up even if the enclosure has no page 7. Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/ses.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 7f5a6a86f820..3b00e907b917 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -390,9 +390,9 @@ static void ses_enclosure_data_process(struct enclosure_device *edev, len = (desc_ptr[2] << 8) + desc_ptr[3]; /* skip past overall descriptor */ desc_ptr += len + 4; - if (ses_dev->page10) - addl_desc_ptr = ses_dev->page10 + 8; } + if (ses_dev->page10) + addl_desc_ptr = ses_dev->page10 + 8; type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11]; components = 0; for (i = 0; i < types; i++, type_ptr += 4) { -- cgit v1.2.3 From 523f3c80bc41d663d5b35c0cd6ce0fad7f3e7188 Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov <segoon@openwall.com> Date: Fri, 4 Feb 2011 15:24:14 +0300 Subject: [SCSI] scsi_transport_iscsi: make priv_sess file writeable only by root Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/scsi_transport_iscsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index b4218390941e..3fd16d7212de 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1917,7 +1917,7 @@ store_priv_session_##field(struct device *dev, \ #define iscsi_priv_session_rw_attr(field, format) \ iscsi_priv_session_attr_show(field, format) \ iscsi_priv_session_attr_store(field) \ -static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO | S_IWUGO, \ +static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO | S_IWUSR, \ show_priv_session_##field, \ store_priv_session_##field) iscsi_priv_session_rw_attr(recovery_tmo, "%d"); -- cgit v1.2.3 From 463b8977ecebf8cf590c33191d43ea0b059381c6 Mon Sep 17 00:00:00 2001 From: HighPoint Linux Team <linux@highpoint-tech.com> Date: Wed, 23 Feb 2011 16:28:44 +0800 Subject: [SCSI] mvsas: Add support for HighPoint RR27xx series HBA This patch is to add support for HighPoint RR27xx SAS/SATA HBA which is based on Marvell 88SE9480 chipset. Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/mvsas/mv_init.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index 19ad34f381a5..938d045e4180 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -663,6 +663,13 @@ static struct pci_device_id __devinitdata mvs_pci_table[] = { { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 }, { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 }, { PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 }, + { PCI_VDEVICE(TTI, 0x2710), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2720), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2721), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2722), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2740), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2744), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2760), chip_9480 }, { } /* terminate list */ }; -- cgit v1.2.3 From d1e12de804f9d8ad114786ca7c2ce593cba79891 Mon Sep 17 00:00:00 2001 From: "Krishnasamy, Somasundaram" <Somasundaram.Krishnasamy@lsi.com> Date: Mon, 28 Feb 2011 18:13:22 -0500 Subject: [SCSI] ses: Avoid kernel panic when lun 0 is not mapped During device discovery, scsi mid layer sends INQUIRY command to LUN 0. If the LUN 0 is not mapped to host, it creates a temporary scsi_device with LUN id 0 and sends REPORT_LUNS command to it. After the REPORT_LUNS succeeds, it walks through the LUN table and adds each LUN found to sysfs. At the end of REPORT_LUNS lun table scan, it will delete the temporary scsi_device of LUN 0. When scsi devices are added to sysfs, it calls add_dev function of all the registered class interfaces. If ses driver has been registered, ses_intf_add() of ses module will be called. This function calls scsi_device_enclosure() to check the inquiry data for EncServ bit. Since inquiry was not allocated for temporary LUN 0 scsi_device, it will cause NULL pointer exception. To fix the problem, sdev->inquiry is checked for NULL before reading it. Signed-off-by: Somasundaram Krishnasamy <Somasundaram.Krishnasamy@lsi.com> Signed-off-by: Babu Moger <babu.moger@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- include/scsi/scsi_device.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index f171c65dc5a8..2d3ec5094685 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -462,7 +462,7 @@ static inline int scsi_device_qas(struct scsi_device *sdev) } static inline int scsi_device_enclosure(struct scsi_device *sdev) { - return sdev->inquiry[6] & (1<<6); + return sdev->inquiry ? (sdev->inquiry[6] & (1<<6)) : 1; } static inline int scsi_device_protection(struct scsi_device *sdev) -- cgit v1.2.3 From 5a6f133eea2d0b4f8f75367b803fef0f03acf268 Mon Sep 17 00:00:00 2001 From: James Smart <james.smart@emulex.com> Date: Fri, 11 Mar 2011 16:05:35 -0500 Subject: [SCSI] lpfc 8.3.22: Add new mailbox command and new BSG fix - Add new Queue Create Mailbox version support - Make lpfc_bsg_wake_mbox_wait routine check the mailboxes job reference before using it. Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/lpfc/lpfc_bsg.c | 18 ++-- drivers/scsi/lpfc/lpfc_hw4.h | 101 +++++++++++++------ drivers/scsi/lpfc/lpfc_sli.c | 228 ++++++++++++++++++++++++++++--------------- 3 files changed, 229 insertions(+), 118 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c index 0dd43bb91618..5a4a2f36ae6d 100644 --- a/drivers/scsi/lpfc/lpfc_bsg.c +++ b/drivers/scsi/lpfc/lpfc_bsg.c @@ -2479,16 +2479,18 @@ lpfc_bsg_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) from = (uint8_t *)dd_data->context_un.mbox.mb; job = dd_data->context_un.mbox.set_job; - size = job->reply_payload.payload_len; - job->reply->reply_payload_rcv_len = - sg_copy_from_buffer(job->reply_payload.sg_list, - job->reply_payload.sg_cnt, - from, size); - job->reply->result = 0; + if (job) { + size = job->reply_payload.payload_len; + job->reply->reply_payload_rcv_len = + sg_copy_from_buffer(job->reply_payload.sg_list, + job->reply_payload.sg_cnt, + from, size); + job->reply->result = 0; + job->dd_data = NULL; + job->job_done(job); + } dd_data->context_un.mbox.set_job = NULL; - job->dd_data = NULL; - job->job_done(job); /* need to hold the lock until we call job done to hold off * the timeout handler returning to the midlayer while * we are stillprocessing the job diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index c7178d60c7bf..b42b6994fd94 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -711,21 +711,27 @@ struct lpfc_sli4_cfg_mhdr { union lpfc_sli4_cfg_shdr { struct { uint32_t word6; -#define lpfc_mbox_hdr_opcode_SHIFT 0 -#define lpfc_mbox_hdr_opcode_MASK 0x000000FF -#define lpfc_mbox_hdr_opcode_WORD word6 -#define lpfc_mbox_hdr_subsystem_SHIFT 8 -#define lpfc_mbox_hdr_subsystem_MASK 0x000000FF -#define lpfc_mbox_hdr_subsystem_WORD word6 -#define lpfc_mbox_hdr_port_number_SHIFT 16 -#define lpfc_mbox_hdr_port_number_MASK 0x000000FF -#define lpfc_mbox_hdr_port_number_WORD word6 -#define lpfc_mbox_hdr_domain_SHIFT 24 -#define lpfc_mbox_hdr_domain_MASK 0x000000FF -#define lpfc_mbox_hdr_domain_WORD word6 +#define lpfc_mbox_hdr_opcode_SHIFT 0 +#define lpfc_mbox_hdr_opcode_MASK 0x000000FF +#define lpfc_mbox_hdr_opcode_WORD word6 +#define lpfc_mbox_hdr_subsystem_SHIFT 8 +#define lpfc_mbox_hdr_subsystem_MASK 0x000000FF +#define lpfc_mbox_hdr_subsystem_WORD word6 +#define lpfc_mbox_hdr_port_number_SHIFT 16 +#define lpfc_mbox_hdr_port_number_MASK 0x000000FF +#define lpfc_mbox_hdr_port_number_WORD word6 +#define lpfc_mbox_hdr_domain_SHIFT 24 +#define lpfc_mbox_hdr_domain_MASK 0x000000FF +#define lpfc_mbox_hdr_domain_WORD word6 uint32_t timeout; uint32_t request_length; - uint32_t reserved9; + uint32_t word9; +#define lpfc_mbox_hdr_version_SHIFT 0 +#define lpfc_mbox_hdr_version_MASK 0x000000FF +#define lpfc_mbox_hdr_version_WORD word9 +#define LPFC_Q_CREATE_VERSION_2 2 +#define LPFC_Q_CREATE_VERSION_1 1 +#define LPFC_Q_CREATE_VERSION_0 0 } request; struct { uint32_t word6; @@ -917,9 +923,12 @@ struct cq_context { #define LPFC_CQ_CNT_512 0x1 #define LPFC_CQ_CNT_1024 0x2 uint32_t word1; -#define lpfc_cq_eq_id_SHIFT 22 +#define lpfc_cq_eq_id_SHIFT 22 /* Version 0 Only */ #define lpfc_cq_eq_id_MASK 0x000000FF #define lpfc_cq_eq_id_WORD word1 +#define lpfc_cq_eq_id_2_SHIFT 0 /* Version 2 Only */ +#define lpfc_cq_eq_id_2_MASK 0x0000FFFF +#define lpfc_cq_eq_id_2_WORD word1 uint32_t reserved0; uint32_t reserved1; }; @@ -929,6 +938,9 @@ struct lpfc_mbx_cq_create { union { struct { uint32_t word0; +#define lpfc_mbx_cq_create_page_size_SHIFT 16 /* Version 2 Only */ +#define lpfc_mbx_cq_create_page_size_MASK 0x000000FF +#define lpfc_mbx_cq_create_page_size_WORD word0 #define lpfc_mbx_cq_create_num_pages_SHIFT 0 #define lpfc_mbx_cq_create_num_pages_MASK 0x0000FFFF #define lpfc_mbx_cq_create_num_pages_WORD word0 @@ -969,7 +981,7 @@ struct wq_context { struct lpfc_mbx_wq_create { struct mbox_header header; union { - struct { + struct { /* Version 0 Request */ uint32_t word0; #define lpfc_mbx_wq_create_num_pages_SHIFT 0 #define lpfc_mbx_wq_create_num_pages_MASK 0x0000FFFF @@ -979,6 +991,23 @@ struct lpfc_mbx_wq_create { #define lpfc_mbx_wq_create_cq_id_WORD word0 struct dma_address page[LPFC_MAX_WQ_PAGE]; } request; + struct { /* Version 1 Request */ + uint32_t word0; /* Word 0 is the same as in v0 */ + uint32_t word1; +#define lpfc_mbx_wq_create_page_size_SHIFT 0 +#define lpfc_mbx_wq_create_page_size_MASK 0x000000FF +#define lpfc_mbx_wq_create_page_size_WORD word1 +#define lpfc_mbx_wq_create_wqe_size_SHIFT 8 +#define lpfc_mbx_wq_create_wqe_size_MASK 0x0000000F +#define lpfc_mbx_wq_create_wqe_size_WORD word1 +#define LPFC_WQ_WQE_SIZE_64 0x5 +#define LPFC_WQ_WQE_SIZE_128 0x6 +#define lpfc_mbx_wq_create_wqe_count_SHIFT 16 +#define lpfc_mbx_wq_create_wqe_count_MASK 0x0000FFFF +#define lpfc_mbx_wq_create_wqe_count_WORD word1 + uint32_t word2; + struct dma_address page[LPFC_MAX_WQ_PAGE-1]; + } request_1; struct { uint32_t word0; #define lpfc_mbx_wq_create_q_id_SHIFT 0 @@ -1007,13 +1036,22 @@ struct lpfc_mbx_wq_destroy { #define LPFC_DATA_BUF_SIZE 2048 struct rq_context { uint32_t word0; -#define lpfc_rq_context_rq_size_SHIFT 16 -#define lpfc_rq_context_rq_size_MASK 0x0000000F -#define lpfc_rq_context_rq_size_WORD word0 +#define lpfc_rq_context_rqe_count_SHIFT 16 /* Version 0 Only */ +#define lpfc_rq_context_rqe_count_MASK 0x0000000F +#define lpfc_rq_context_rqe_count_WORD word0 #define LPFC_RQ_RING_SIZE_512 9 /* 512 entries */ #define LPFC_RQ_RING_SIZE_1024 10 /* 1024 entries */ #define LPFC_RQ_RING_SIZE_2048 11 /* 2048 entries */ #define LPFC_RQ_RING_SIZE_4096 12 /* 4096 entries */ +#define lpfc_rq_context_rqe_count_1_SHIFT 16 /* Version 1 Only */ +#define lpfc_rq_context_rqe_count_1_MASK 0x0000FFFF +#define lpfc_rq_context_rqe_count_1_WORD word0 +#define lpfc_rq_context_rqe_size_SHIFT 8 /* Version 1 Only */ +#define lpfc_rq_context_rqe_size_MASK 0x0000000F +#define lpfc_rq_context_rqe_size_WORD word0 +#define lpfc_rq_context_page_size_SHIFT 0 /* Version 1 Only */ +#define lpfc_rq_context_page_size_MASK 0x000000FF +#define lpfc_rq_context_page_size_WORD word0 uint32_t reserved1; uint32_t word2; #define lpfc_rq_context_cq_id_SHIFT 16 @@ -1022,7 +1060,7 @@ struct rq_context { #define lpfc_rq_context_buf_size_SHIFT 0 #define lpfc_rq_context_buf_size_MASK 0x0000FFFF #define lpfc_rq_context_buf_size_WORD word2 - uint32_t reserved3; + uint32_t buffer_size; /* Version 1 Only */ }; struct lpfc_mbx_rq_create { @@ -1062,16 +1100,16 @@ struct lpfc_mbx_rq_destroy { struct mq_context { uint32_t word0; -#define lpfc_mq_context_cq_id_SHIFT 22 +#define lpfc_mq_context_cq_id_SHIFT 22 /* Version 0 Only */ #define lpfc_mq_context_cq_id_MASK 0x000003FF #define lpfc_mq_context_cq_id_WORD word0 -#define lpfc_mq_context_count_SHIFT 16 -#define lpfc_mq_context_count_MASK 0x0000000F -#define lpfc_mq_context_count_WORD word0 -#define LPFC_MQ_CNT_16 0x5 -#define LPFC_MQ_CNT_32 0x6 -#define LPFC_MQ_CNT_64 0x7 -#define LPFC_MQ_CNT_128 0x8 +#define lpfc_mq_context_ring_size_SHIFT 16 +#define lpfc_mq_context_ring_size_MASK 0x0000000F +#define lpfc_mq_context_ring_size_WORD word0 +#define LPFC_MQ_RING_SIZE_16 0x5 +#define LPFC_MQ_RING_SIZE_32 0x6 +#define LPFC_MQ_RING_SIZE_64 0x7 +#define LPFC_MQ_RING_SIZE_128 0x8 uint32_t word1; #define lpfc_mq_context_valid_SHIFT 31 #define lpfc_mq_context_valid_MASK 0x00000001 @@ -1105,9 +1143,12 @@ struct lpfc_mbx_mq_create_ext { union { struct { uint32_t word0; -#define lpfc_mbx_mq_create_ext_num_pages_SHIFT 0 -#define lpfc_mbx_mq_create_ext_num_pages_MASK 0x0000FFFF -#define lpfc_mbx_mq_create_ext_num_pages_WORD word0 +#define lpfc_mbx_mq_create_ext_num_pages_SHIFT 0 +#define lpfc_mbx_mq_create_ext_num_pages_MASK 0x0000FFFF +#define lpfc_mbx_mq_create_ext_num_pages_WORD word0 +#define lpfc_mbx_mq_create_ext_cq_id_SHIFT 16 /* Version 1 Only */ +#define lpfc_mbx_mq_create_ext_cq_id_MASK 0x0000FFFF +#define lpfc_mbx_mq_create_ext_cq_id_WORD word0 uint32_t async_evt_bmap; #define lpfc_mbx_mq_create_ext_async_evt_link_SHIFT LPFC_TRAILER_CODE_LINK #define lpfc_mbx_mq_create_ext_async_evt_link_MASK 0x00000001 diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 2ee0374a9908..84234a4c54ce 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -10403,7 +10403,6 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, if (!phba->sli4_hba.pc_sli4_params.supported) hw_page_size = SLI4_PAGE_SIZE; - mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) return -ENOMEM; @@ -10413,11 +10412,22 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, LPFC_MBOX_OPCODE_CQ_CREATE, length, LPFC_SLI4_MBX_EMBED); cq_create = &mbox->u.mqe.un.cq_create; + shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr; bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request, cq->page_count); bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1); bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1); - bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id); + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.cqv); + if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) { + bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, + (PAGE_SIZE/SLI4_PAGE_SIZE)); + bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context, + eq->queue_id); + } else { + bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, + eq->queue_id); + } switch (cq->entry_count) { default: lpfc_printf_log(phba, KERN_ERR, LOG_SLI, @@ -10449,7 +10459,6 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); /* The IOCTL status is embedded in the mailbox subheader. */ - shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr; shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); if (shdr_status || shdr_add_status || rc) { @@ -10515,20 +10524,20 @@ lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq, bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1); switch (mq->entry_count) { case 16: - bf_set(lpfc_mq_context_count, &mq_create->u.request.context, - LPFC_MQ_CNT_16); + bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context, + LPFC_MQ_RING_SIZE_16); break; case 32: - bf_set(lpfc_mq_context_count, &mq_create->u.request.context, - LPFC_MQ_CNT_32); + bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context, + LPFC_MQ_RING_SIZE_32); break; case 64: - bf_set(lpfc_mq_context_count, &mq_create->u.request.context, - LPFC_MQ_CNT_64); + bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context, + LPFC_MQ_RING_SIZE_64); break; case 128: - bf_set(lpfc_mq_context_count, &mq_create->u.request.context, - LPFC_MQ_CNT_128); + bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context, + LPFC_MQ_RING_SIZE_128); break; } list_for_each_entry(dmabuf, &mq->page_list, list) { @@ -10586,6 +10595,7 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, length, LPFC_SLI4_MBX_EMBED); mq_create_ext = &mbox->u.mqe.un.mq_create_ext; + shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr; bf_set(lpfc_mbx_mq_create_ext_num_pages, &mq_create_ext->u.request, mq->page_count); bf_set(lpfc_mbx_mq_create_ext_async_evt_link, @@ -10598,9 +10608,15 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, &mq_create_ext->u.request, 1); bf_set(lpfc_mbx_mq_create_ext_async_evt_sli, &mq_create_ext->u.request, 1); - bf_set(lpfc_mq_context_cq_id, - &mq_create_ext->u.request.context, cq->queue_id); bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1); + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.mqv); + if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1) + bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request, + cq->queue_id); + else + bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context, + cq->queue_id); switch (mq->entry_count) { default: lpfc_printf_log(phba, KERN_ERR, LOG_SLI, @@ -10610,20 +10626,24 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, return -EINVAL; /* otherwise default to smallest count (drop through) */ case 16: - bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, - LPFC_MQ_CNT_16); + bf_set(lpfc_mq_context_ring_size, + &mq_create_ext->u.request.context, + LPFC_MQ_RING_SIZE_16); break; case 32: - bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, - LPFC_MQ_CNT_32); + bf_set(lpfc_mq_context_ring_size, + &mq_create_ext->u.request.context, + LPFC_MQ_RING_SIZE_32); break; case 64: - bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, - LPFC_MQ_CNT_64); + bf_set(lpfc_mq_context_ring_size, + &mq_create_ext->u.request.context, + LPFC_MQ_RING_SIZE_64); break; case 128: - bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, - LPFC_MQ_CNT_128); + bf_set(lpfc_mq_context_ring_size, + &mq_create_ext->u.request.context, + LPFC_MQ_RING_SIZE_128); break; } list_for_each_entry(dmabuf, &mq->page_list, list) { @@ -10634,7 +10654,6 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, putPaddrHigh(dmabuf->phys); } rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); - shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr; mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create_ext->u.response); if (rc != MBX_SUCCESS) { @@ -10711,6 +10730,7 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq, uint32_t shdr_status, shdr_add_status; union lpfc_sli4_cfg_shdr *shdr; uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; + struct dma_address *page; if (!phba->sli4_hba.pc_sli4_params.supported) hw_page_size = SLI4_PAGE_SIZE; @@ -10724,20 +10744,42 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq, LPFC_MBOX_OPCODE_FCOE_WQ_CREATE, length, LPFC_SLI4_MBX_EMBED); wq_create = &mbox->u.mqe.un.wq_create; + shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr; bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request, wq->page_count); bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request, cq->queue_id); + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.wqv); + if (phba->sli4_hba.pc_sli4_params.wqv == LPFC_Q_CREATE_VERSION_1) { + bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1, + wq->entry_count); + switch (wq->entry_size) { + default: + case 64: + bf_set(lpfc_mbx_wq_create_wqe_size, + &wq_create->u.request_1, + LPFC_WQ_WQE_SIZE_64); + break; + case 128: + bf_set(lpfc_mbx_wq_create_wqe_size, + &wq_create->u.request_1, + LPFC_WQ_WQE_SIZE_128); + break; + } + bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1, + (PAGE_SIZE/SLI4_PAGE_SIZE)); + page = wq_create->u.request_1.page; + } else { + page = wq_create->u.request.page; + } list_for_each_entry(dmabuf, &wq->page_list, list) { memset(dmabuf->virt, 0, hw_page_size); - wq_create->u.request.page[dmabuf->buffer_tag].addr_lo = - putPaddrLow(dmabuf->phys); - wq_create->u.request.page[dmabuf->buffer_tag].addr_hi = - putPaddrHigh(dmabuf->phys); + page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys); + page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys); } rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); /* The IOCTL status is embedded in the mailbox subheader. */ - shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr; shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); if (shdr_status || shdr_add_status || rc) { @@ -10815,37 +10857,51 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length, LPFC_SLI4_MBX_EMBED); rq_create = &mbox->u.mqe.un.rq_create; - switch (hrq->entry_count) { - default: - lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "2535 Unsupported RQ count. (%d)\n", - hrq->entry_count); - if (hrq->entry_count < 512) - return -EINVAL; - /* otherwise default to smallest count (drop through) */ - case 512: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_512); - break; - case 1024: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_1024); - break; - case 2048: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_2048); - break; - case 4096: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_4096); - break; + shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.rqv); + if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) { + bf_set(lpfc_rq_context_rqe_count_1, + &rq_create->u.request.context, + hrq->entry_count); + rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE; + } else { + switch (hrq->entry_count) { + default: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2535 Unsupported RQ count. (%d)\n", + hrq->entry_count); + if (hrq->entry_count < 512) + return -EINVAL; + /* otherwise default to smallest count (drop through) */ + case 512: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_512); + break; + case 1024: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_1024); + break; + case 2048: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_2048); + break; + case 4096: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_4096); + break; + } + bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, + LPFC_HDR_BUF_SIZE); } bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, cq->queue_id); bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, hrq->page_count); - bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, - LPFC_HDR_BUF_SIZE); list_for_each_entry(dmabuf, &hrq->page_list, list) { memset(dmabuf->virt, 0, hw_page_size); rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = @@ -10855,7 +10911,6 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, } rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); /* The IOCTL status is embedded in the mailbox subheader. */ - shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); if (shdr_status || shdr_add_status || rc) { @@ -10881,37 +10936,50 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length, LPFC_SLI4_MBX_EMBED); - switch (drq->entry_count) { - default: - lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "2536 Unsupported RQ count. (%d)\n", - drq->entry_count); - if (drq->entry_count < 512) - return -EINVAL; - /* otherwise default to smallest count (drop through) */ - case 512: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_512); - break; - case 1024: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_1024); - break; - case 2048: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_2048); - break; - case 4096: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_4096); - break; + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.rqv); + if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) { + bf_set(lpfc_rq_context_rqe_count_1, + &rq_create->u.request.context, + hrq->entry_count); + rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE; + } else { + switch (drq->entry_count) { + default: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2536 Unsupported RQ count. (%d)\n", + drq->entry_count); + if (drq->entry_count < 512) + return -EINVAL; + /* otherwise default to smallest count (drop through) */ + case 512: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_512); + break; + case 1024: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_1024); + break; + case 2048: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_2048); + break; + case 4096: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_4096); + break; + } + bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, + LPFC_DATA_BUF_SIZE); } bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, cq->queue_id); bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, drq->page_count); - bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, - LPFC_DATA_BUF_SIZE); list_for_each_entry(dmabuf, &drq->page_list, list) { rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys); -- cgit v1.2.3 From 7f86059ac016d8662e5fbfab4875529510977b47 Mon Sep 17 00:00:00 2001 From: James Smart <james.smart@emulex.com> Date: Fri, 11 Mar 2011 16:05:52 -0500 Subject: [SCSI] lpfc 8.3.22: T10-DIF corrections T10-DIF corrections - Add selective reset jump table entry - Split T10-DIF BDEs that cross 4K boundary Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/lpfc/lpfc.h | 2 ++ drivers/scsi/lpfc/lpfc_attr.c | 4 ++-- drivers/scsi/lpfc/lpfc_crtn.h | 4 ++-- drivers/scsi/lpfc/lpfc_hw.h | 11 +++++++++++ drivers/scsi/lpfc/lpfc_init.c | 1 + drivers/scsi/lpfc/lpfc_scsi.c | 41 ++++++++++++++++++++++++++++++----------- 6 files changed, 48 insertions(+), 15 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index b64c6da870d3..d9869f417d4f 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -539,6 +539,8 @@ struct lpfc_hba { (struct lpfc_hba *, uint32_t); int (*lpfc_hba_down_link) (struct lpfc_hba *, uint32_t); + int (*lpfc_selective_reset) + (struct lpfc_hba *); /* SLI4 specific HBA data structure */ struct lpfc_sli4_hba sli4_hba; diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index e7c020df12fa..427c046e8209 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -685,7 +685,7 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) * -EIO reset not configured or error posting the event * zero for success **/ -static int +int lpfc_selective_reset(struct lpfc_hba *phba) { struct completion online_compl; @@ -746,7 +746,7 @@ lpfc_issue_reset(struct device *dev, struct device_attribute *attr, int status = -EINVAL; if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) - status = lpfc_selective_reset(phba); + status = phba->lpfc_selective_reset(phba); if (status == 0) return strlen(buf); diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 3d40023f4804..60281d875184 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -254,8 +254,8 @@ uint16_t lpfc_sli_next_iotag(struct lpfc_hba *, struct lpfc_iocbq *); void lpfc_sli_cancel_iocbs(struct lpfc_hba *, struct list_head *, uint32_t, uint32_t); void lpfc_sli_wake_mbox_wait(struct lpfc_hba *, LPFC_MBOXQ_t *); - -void lpfc_reset_barrier(struct lpfc_hba * phba); +int lpfc_selective_reset(struct lpfc_hba *); +void lpfc_reset_barrier(struct lpfc_hba *); int lpfc_sli_brdready(struct lpfc_hba *, uint32_t); int lpfc_sli_brdkill(struct lpfc_hba *); int lpfc_sli_brdreset(struct lpfc_hba *); diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 94ae37c5111a..057ab82bf399 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -1713,6 +1713,17 @@ struct lpfc_pde6 { #define pde6_apptagval_WORD word2 }; +struct lpfc_pde7 { + uint32_t word0; +#define pde7_type_SHIFT 24 +#define pde7_type_MASK 0x000000ff +#define pde7_type_WORD word0 +#define pde7_rsvd0_SHIFT 0 +#define pde7_rsvd0_MASK 0x00ffffff +#define pde7_rsvd0_WORD word0 + uint32_t addrHigh; + uint32_t addrLow; +}; /* Structure for MB Command LOAD_SM and DOWN_LOAD */ diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 35665cfb5689..29aab9432af9 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4474,6 +4474,7 @@ lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) { phba->lpfc_hba_init_link = lpfc_hba_init_link; phba->lpfc_hba_down_link = lpfc_hba_down_link; + phba->lpfc_selective_reset = lpfc_selective_reset; switch (dev_grp) { case LPFC_PCI_DEV_LP: phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index bf34178b80bf..e3a1d295e4dc 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1514,10 +1514,11 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, struct scatterlist *sgpe = NULL; /* s/g prot entry */ struct lpfc_pde5 *pde5 = NULL; struct lpfc_pde6 *pde6 = NULL; - struct ulp_bde64 *prot_bde = NULL; + struct lpfc_pde7 *pde7 = NULL; dma_addr_t dataphysaddr, protphysaddr; unsigned short curr_data = 0, curr_prot = 0; - unsigned int split_offset, protgroup_len; + unsigned int split_offset; + unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; unsigned int protgrp_blks, protgrp_bytes; unsigned int remainder, subtotal; int status; @@ -1585,23 +1586,33 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, bpl++; /* setup the first BDE that points to protection buffer */ - prot_bde = (struct ulp_bde64 *) bpl; - protphysaddr = sg_dma_address(sgpe); - prot_bde->addrHigh = le32_to_cpu(putPaddrLow(protphysaddr)); - prot_bde->addrLow = le32_to_cpu(putPaddrHigh(protphysaddr)); - protgroup_len = sg_dma_len(sgpe); + protphysaddr = sg_dma_address(sgpe) + protgroup_offset; + protgroup_len = sg_dma_len(sgpe) - protgroup_offset; /* must be integer multiple of the DIF block length */ BUG_ON(protgroup_len % 8); + pde7 = (struct lpfc_pde7 *) bpl; + memset(pde7, 0, sizeof(struct lpfc_pde7)); + bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR); + + pde7->addrHigh = le32_to_cpu(putPaddrLow(protphysaddr)); + pde7->addrLow = le32_to_cpu(putPaddrHigh(protphysaddr)); + protgrp_blks = protgroup_len / 8; protgrp_bytes = protgrp_blks * blksize; - prot_bde->tus.f.bdeSize = protgroup_len; - prot_bde->tus.f.bdeFlags = LPFC_PDE7_DESCRIPTOR; - prot_bde->tus.w = le32_to_cpu(bpl->tus.w); + /* check if this pde is crossing the 4K boundary; if so split */ + if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) { + protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff); + protgroup_offset += protgroup_remainder; + protgrp_blks = protgroup_remainder / 8; + protgrp_bytes = protgroup_remainder * blksize; + } else { + protgroup_offset = 0; + curr_prot++; + } - curr_prot++; num_bde++; /* setup BDE's for data blocks associated with DIF data */ @@ -1653,6 +1664,13 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, } + if (protgroup_offset) { + /* update the reference tag */ + reftag += protgrp_blks; + bpl++; + continue; + } + /* are we done ? */ if (curr_prot == protcnt) { alldone = 1; @@ -1675,6 +1693,7 @@ out: return num_bde; } + /* * Given a SCSI command that supports DIF, determine composition of protection * groups involved in setting up buffer lists -- cgit v1.2.3 From 9940b97bb30d7435c881418c809ed652eb329583 Mon Sep 17 00:00:00 2001 From: James Smart <james.smart@emulex.com> Date: Fri, 11 Mar 2011 16:06:12 -0500 Subject: [SCSI] lpfc 8.3.22: Add support for PCI Adapter Failure Periodically poll adapter registers to detect pci adapter failure (reads return -1). On failure, take port offline, set error indicators and wake up worker threads. Threads will take adapter offline. Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/lpfc/lpfc.h | 25 ++++-- drivers/scsi/lpfc/lpfc_attr.c | 10 ++- drivers/scsi/lpfc/lpfc_bsg.c | 16 +++- drivers/scsi/lpfc/lpfc_els.c | 3 +- drivers/scsi/lpfc/lpfc_hw.h | 2 +- drivers/scsi/lpfc/lpfc_init.c | 38 ++++++--- drivers/scsi/lpfc/lpfc_sli.c | 184 +++++++++++++++++++++++++++++++----------- 7 files changed, 207 insertions(+), 71 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index d9869f417d4f..60e98a62f308 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -897,7 +897,18 @@ lpfc_worker_wake_up(struct lpfc_hba *phba) return; } -static inline void +static inline int +lpfc_readl(void __iomem *addr, uint32_t *data) +{ + uint32_t temp; + temp = readl(addr); + if (temp == 0xffffffff) + return -EIO; + *data = temp; + return 0; +} + +static inline int lpfc_sli_read_hs(struct lpfc_hba *phba) { /* @@ -906,15 +917,17 @@ lpfc_sli_read_hs(struct lpfc_hba *phba) */ phba->sli.slistat.err_attn_event++; - /* Save status info */ - phba->work_hs = readl(phba->HSregaddr); - phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); - phba->work_status[1] = readl(phba->MBslimaddr + 0xac); + /* Save status info and check for unplug error */ + if (lpfc_readl(phba->HSregaddr, &phba->work_hs) || + lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) || + lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) { + return -EIO; + } /* Clear chip Host Attention error bit */ writel(HA_ERATT, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ phba->pport->stopped = 1; - return; + return 0; } diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 427c046e8209..4e0faa00b96f 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -1224,7 +1224,10 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr, if (val & ENABLE_FCP_RING_POLLING) { if ((val & DISABLE_FCP_RING_INT) && !(old_val & DISABLE_FCP_RING_INT)) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + spin_unlock_irq(&phba->hbalock); + return -EINVAL; + } creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -1242,7 +1245,10 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr, spin_unlock_irq(&phba->hbalock); del_timer(&phba->fcp_poll_timer); spin_lock_irq(&phba->hbalock); - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + spin_unlock_irq(&phba->hbalock); + return -EINVAL; + } creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c index 5a4a2f36ae6d..d9b91b3f942f 100644 --- a/drivers/scsi/lpfc/lpfc_bsg.c +++ b/drivers/scsi/lpfc/lpfc_bsg.c @@ -348,7 +348,10 @@ lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) dd_data->context_un.iocb.bmp = bmp; if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + rc = -EIO ; + goto free_cmdiocbq; + } creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -599,7 +602,10 @@ lpfc_bsg_rport_els(struct fc_bsg_job *job) dd_data->context_un.iocb.ndlp = ndlp; if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + rc = -EIO; + goto linkdown_err; + } creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -613,6 +619,7 @@ lpfc_bsg_rport_els(struct fc_bsg_job *job) else rc = -EIO; +linkdown_err: pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, job->request_payload.sg_cnt, DMA_TO_DEVICE); pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, @@ -1357,7 +1364,10 @@ lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, dd_data->context_un.iocb.ndlp = ndlp; if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + rc = -IOCB_ERROR; + goto issue_ct_rsp_exit; + } creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 8e28edf9801e..735028fedda5 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -89,7 +89,8 @@ lpfc_els_chk_latt(struct lpfc_vport *vport) return 0; /* Read the HBA Host Attention Register */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return 1; if (!(ha_copy & HA_LATT)) return 0; diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 057ab82bf399..c3a0e62de491 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -1344,7 +1344,7 @@ typedef struct { /* FireFly BIU registers */ #define HS_FFER1 0x80000000 /* Bit 31 */ #define HS_CRIT_TEMP 0x00000100 /* Bit 8 */ #define HS_FFERM 0xFF000100 /* Mask for error bits 31:24 and 8 */ - +#define UNPLUG_ERR 0x00000001 /* Indicate pci hot unplug */ /* Host Control Register */ #define HC_REG_OFFSET 12 /* Byte offset from register base address */ diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 29aab9432af9..d5d07a890b67 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -507,7 +507,10 @@ lpfc_config_port_post(struct lpfc_hba *phba) phba->hba_flag &= ~HBA_ERATT_HANDLED; /* Enable appropriate host interrupts */ - status = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &status)) { + spin_unlock_irq(&phba->hbalock); + return -EIO; + } status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; if (psli->num_rings > 0) status |= HC_R0INT_ENA; @@ -1222,7 +1225,10 @@ lpfc_handle_deferred_eratt(struct lpfc_hba *phba) /* Wait for the ER1 bit to clear.*/ while (phba->work_hs & HS_FFER1) { msleep(100); - phba->work_hs = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { + phba->work_hs = UNPLUG_ERR ; + break; + } /* If driver is unloading let the worker thread continue */ if (phba->pport->load_flag & FC_UNLOADING) { phba->work_hs = 0; @@ -5386,13 +5392,16 @@ lpfc_sli4_post_status_check(struct lpfc_hba *phba) int i, port_error = 0; uint32_t if_type; + memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); + memset(®_data, 0, sizeof(reg_data)); if (!phba->sli4_hba.PSMPHRregaddr) return -ENODEV; /* Wait up to 30 seconds for the SLI Port POST done and ready */ for (i = 0; i < 3000; i++) { - portsmphr_reg.word0 = readl(phba->sli4_hba.PSMPHRregaddr); - if (bf_get(lpfc_port_smphr_perr, &portsmphr_reg)) { + if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, + &portsmphr_reg.word0) || + (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { /* Port has a fatal POST error, break out */ port_error = -ENODEV; break; @@ -5473,9 +5482,9 @@ lpfc_sli4_post_status_check(struct lpfc_hba *phba) break; case LPFC_SLI_INTF_IF_TYPE_2: /* Final checks. The port status should be clean. */ - reg_data.word0 = - readl(phba->sli4_hba.u.if_type2.STATUSregaddr); - if (bf_get(lpfc_sliport_status_err, ®_data)) { + if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, + ®_data.word0) || + bf_get(lpfc_sliport_status_err, ®_data)) { phba->work_status[0] = readl(phba->sli4_hba.u.if_type2. ERR1regaddr); @@ -6761,9 +6770,11 @@ lpfc_pci_function_reset(struct lpfc_hba *phba) * the loop again. */ for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { - reg_data.word0 = - readl(phba->sli4_hba.u.if_type2. - STATUSregaddr); + if (lpfc_readl(phba->sli4_hba.u.if_type2. + STATUSregaddr, ®_data.word0)) { + rc = -ENODEV; + break; + } if (bf_get(lpfc_sliport_status_rdy, ®_data)) break; if (bf_get(lpfc_sliport_status_rn, ®_data)) { @@ -6784,8 +6795,11 @@ lpfc_pci_function_reset(struct lpfc_hba *phba) } /* Detect any port errors. */ - reg_data.word0 = readl(phba->sli4_hba.u.if_type2. - STATUSregaddr); + if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, + ®_data.word0)) { + rc = -ENODEV; + break; + } if ((bf_get(lpfc_sliport_status_err, ®_data)) || (rdy_chk >= 1000)) { phba->work_status[0] = readl( diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 84234a4c54ce..3218c184be6f 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -3477,7 +3477,8 @@ lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) int retval = 0; /* Read the HBA Host Status Register */ - status = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &status)) + return 1; /* * Check status register every 100ms for 5 retries, then every @@ -3502,7 +3503,10 @@ lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) lpfc_sli_brdrestart(phba); } /* Read the HBA Host Status Register */ - status = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &status)) { + retval = 1; + break; + } } /* Check to see if any errors occurred during init */ @@ -3584,7 +3588,7 @@ void lpfc_reset_barrier(struct lpfc_hba *phba) uint32_t __iomem *resp_buf; uint32_t __iomem *mbox_buf; volatile uint32_t mbox; - uint32_t hc_copy; + uint32_t hc_copy, ha_copy, resp_data; int i; uint8_t hdrtype; @@ -3601,12 +3605,15 @@ void lpfc_reset_barrier(struct lpfc_hba *phba) resp_buf = phba->MBslimaddr; /* Disable the error attention */ - hc_copy = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &hc_copy)) + return; writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); readl(phba->HCregaddr); /* flush */ phba->link_flag |= LS_IGNORE_ERATT; - if (readl(phba->HAregaddr) & HA_ERATT) { + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return; + if (ha_copy & HA_ERATT) { /* Clear Chip error bit */ writel(HA_ERATT, phba->HAregaddr); phba->pport->stopped = 1; @@ -3620,11 +3627,18 @@ void lpfc_reset_barrier(struct lpfc_hba *phba) mbox_buf = phba->MBslimaddr; writel(mbox, mbox_buf); - for (i = 0; - readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) - mdelay(1); - - if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { + for (i = 0; i < 50; i++) { + if (lpfc_readl((resp_buf + 1), &resp_data)) + return; + if (resp_data != ~(BARRIER_TEST_PATTERN)) + mdelay(1); + else + break; + } + resp_data = 0; + if (lpfc_readl((resp_buf + 1), &resp_data)) + return; + if (resp_data != ~(BARRIER_TEST_PATTERN)) { if (phba->sli.sli_flag & LPFC_SLI_ACTIVE || phba->pport->stopped) goto restore_hc; @@ -3633,13 +3647,26 @@ void lpfc_reset_barrier(struct lpfc_hba *phba) } ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; - for (i = 0; readl(resp_buf) != mbox && i < 500; i++) - mdelay(1); + resp_data = 0; + for (i = 0; i < 500; i++) { + if (lpfc_readl(resp_buf, &resp_data)) + return; + if (resp_data != mbox) + mdelay(1); + else + break; + } clear_errat: - while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) - mdelay(1); + while (++i < 500) { + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return; + if (!(ha_copy & HA_ERATT)) + mdelay(1); + else + break; + } if (readl(phba->HAregaddr) & HA_ERATT) { writel(HA_ERATT, phba->HAregaddr); @@ -3686,7 +3713,11 @@ lpfc_sli_brdkill(struct lpfc_hba *phba) /* Disable the error attention */ spin_lock_irq(&phba->hbalock); - status = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &status)) { + spin_unlock_irq(&phba->hbalock); + mempool_free(pmb, phba->mbox_mem_pool); + return 1; + } status &= ~HC_ERINT_ENA; writel(status, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -3720,11 +3751,12 @@ lpfc_sli_brdkill(struct lpfc_hba *phba) * 3 seconds we still set HBA_ERROR state because the status of the * board is now undefined. */ - ha_copy = readl(phba->HAregaddr); - + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return 1; while ((i++ < 30) && !(ha_copy & HA_ERATT)) { mdelay(100); - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return 1; } del_timer_sync(&psli->mbox_tmo); @@ -4018,7 +4050,8 @@ lpfc_sli_chipset_init(struct lpfc_hba *phba) uint32_t status, i = 0; /* Read the HBA Host Status Register */ - status = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &status)) + return -EIO; /* Check status register to see what current state is */ i = 0; @@ -4073,7 +4106,8 @@ lpfc_sli_chipset_init(struct lpfc_hba *phba) lpfc_sli_brdrestart(phba); } /* Read the HBA Host Status Register */ - status = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &status)) + return -EIO; } /* Check to see if any errors occurred during init */ @@ -5136,7 +5170,7 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, MAILBOX_t *mb; struct lpfc_sli *psli = &phba->sli; uint32_t status, evtctr; - uint32_t ha_copy; + uint32_t ha_copy, hc_copy; int i; unsigned long timeout; unsigned long drvr_flag = 0; @@ -5202,15 +5236,17 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, goto out_not_finished; } - if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && - !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { - spin_unlock_irqrestore(&phba->hbalock, drvr_flag); - lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, + if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) { + if (lpfc_readl(phba->HCregaddr, &hc_copy) || + !(hc_copy & HC_MBINT_ENA)) { + spin_unlock_irqrestore(&phba->hbalock, drvr_flag); + lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, "(%d):2528 Mailbox command x%x cannot " "issue Data: x%x x%x\n", pmbox->vport ? pmbox->vport->vpi : 0, pmbox->u.mb.mbxCommand, psli->sli_flag, flag); - goto out_not_finished; + goto out_not_finished; + } } if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { @@ -5408,11 +5444,19 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, word0 = le32_to_cpu(word0); } else { /* First read mbox status word */ - word0 = readl(phba->MBslimaddr); + if (lpfc_readl(phba->MBslimaddr, &word0)) { + spin_unlock_irqrestore(&phba->hbalock, + drvr_flag); + goto out_not_finished; + } } /* Read the HBA Host Attention Register */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) { + spin_unlock_irqrestore(&phba->hbalock, + drvr_flag); + goto out_not_finished; + } timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mb->mbxCommand) * 1000) + jiffies; @@ -5463,7 +5507,11 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, word0 = readl(phba->MBslimaddr); } /* Read the HBA Host Attention Register */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) { + spin_unlock_irqrestore(&phba->hbalock, + drvr_flag); + goto out_not_finished; + } } if (psli->sli_flag & LPFC_SLI_ACTIVE) { @@ -8194,7 +8242,8 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, piocb->iocb_flag &= ~LPFC_IO_WAKE; if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) + return IOCB_ERROR; creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -8236,7 +8285,8 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, } if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) + return IOCB_ERROR; creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -8387,10 +8437,13 @@ lpfc_sli_eratt_read(struct lpfc_hba *phba) uint32_t ha_copy; /* Read chip Host Attention (HA) register */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + goto unplug_err; + if (ha_copy & HA_ERATT) { /* Read host status register to retrieve error event */ - lpfc_sli_read_hs(phba); + if (lpfc_sli_read_hs(phba)) + goto unplug_err; /* Check if there is a deferred error condition is active */ if ((HS_FFER1 & phba->work_hs) && @@ -8409,6 +8462,15 @@ lpfc_sli_eratt_read(struct lpfc_hba *phba) return 1; } return 0; + +unplug_err: + /* Set the driver HS work bitmap */ + phba->work_hs |= UNPLUG_ERR; + /* Set the driver HA work bitmap */ + phba->work_ha |= HA_ERATT; + /* Indicate polling handles this ERATT */ + phba->hba_flag |= HBA_ERATT_HANDLED; + return 1; } /** @@ -8436,8 +8498,15 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba) if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); switch (if_type) { case LPFC_SLI_INTF_IF_TYPE_0: - uerr_sta_lo = readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); - uerr_sta_hi = readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); + if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr, + &uerr_sta_lo) || + lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr, + &uerr_sta_hi)) { + phba->work_hs |= UNPLUG_ERR; + phba->work_ha |= HA_ERATT; + phba->hba_flag |= HBA_ERATT_HANDLED; + return 1; + } if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) || (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, @@ -8456,9 +8525,15 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba) } break; case LPFC_SLI_INTF_IF_TYPE_2: - portstat_reg.word0 = - readl(phba->sli4_hba.u.if_type2.STATUSregaddr); - portsmphr = readl(phba->sli4_hba.PSMPHRregaddr); + if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, + &portstat_reg.word0) || + lpfc_readl(phba->sli4_hba.PSMPHRregaddr, + &portsmphr)){ + phba->work_hs |= UNPLUG_ERR; + phba->work_ha |= HA_ERATT; + phba->hba_flag |= HBA_ERATT_HANDLED; + return 1; + } if (bf_get(lpfc_sliport_status_err, &portstat_reg)) { phba->work_status[0] = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); @@ -8639,7 +8714,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) return IRQ_NONE; /* Need to read HA REG for slow-path events */ spin_lock_irqsave(&phba->hbalock, iflag); - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + goto unplug_error; /* If somebody is waiting to handle an eratt don't process it * here. The brdkill function will do this. */ @@ -8665,7 +8741,9 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) } /* Clear up only attention source related to slow-path */ - hc_copy = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &hc_copy)) + goto unplug_error; + writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA), phba->HCregaddr); @@ -8688,7 +8766,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) */ spin_lock_irqsave(&phba->hbalock, iflag); phba->sli.sli_flag &= ~LPFC_PROCESS_LA; - control = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &control)) + goto unplug_error; control &= ~HC_LAINT_ENA; writel(control, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -8708,7 +8787,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) status >>= (4*LPFC_ELS_RING); if (status & HA_RXMASK) { spin_lock_irqsave(&phba->hbalock, iflag); - control = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &control)) + goto unplug_error; lpfc_debugfs_slow_ring_trc(phba, "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", @@ -8741,7 +8821,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) } spin_lock_irqsave(&phba->hbalock, iflag); if (work_ha_copy & HA_ERATT) { - lpfc_sli_read_hs(phba); + if (lpfc_sli_read_hs(phba)) + goto unplug_error; /* * Check if there is a deferred error condition * is active @@ -8872,6 +8953,9 @@ send_current_mbox: lpfc_worker_wake_up(phba); } return IRQ_HANDLED; +unplug_error: + spin_unlock_irqrestore(&phba->hbalock, iflag); + return IRQ_HANDLED; } /* lpfc_sli_sp_intr_handler */ @@ -8919,7 +9003,8 @@ lpfc_sli_fp_intr_handler(int irq, void *dev_id) if (lpfc_intr_state_check(phba)) return IRQ_NONE; /* Need to read HA REG for FCP ring and other ring events */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return IRQ_HANDLED; /* Clear up only attention source related to fast-path */ spin_lock_irqsave(&phba->hbalock, iflag); /* @@ -9004,7 +9089,11 @@ lpfc_sli_intr_handler(int irq, void *dev_id) return IRQ_NONE; spin_lock(&phba->hbalock); - phba->ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) { + spin_unlock(&phba->hbalock); + return IRQ_HANDLED; + } + if (unlikely(!phba->ha_copy)) { spin_unlock(&phba->hbalock); return IRQ_NONE; @@ -9026,7 +9115,10 @@ lpfc_sli_intr_handler(int irq, void *dev_id) } /* Clear attention sources except link and error attentions */ - hc_copy = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &hc_copy)) { + spin_unlock(&phba->hbalock); + return IRQ_HANDLED; + } writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA), phba->HCregaddr); -- cgit v1.2.3 From 546fc854d0faa76358d1deffd2c4f6b8598bf5f2 Mon Sep 17 00:00:00 2001 From: James Smart <james.smart@emulex.com> Date: Fri, 11 Mar 2011 16:06:29 -0500 Subject: [SCSI] lpfc 8.3.22: FC Discovery fixes FC Discovery fixes - In lpfc_sli4_bpl2sgl byte swapping the SGL in word2. - In lpfc_sli4_iocb2wqe byteswap the data for CMD_GEN_REQUEST64_CR type WQE. - In lpfc_sli4_seq_abort_acc do not set the oxid into the iocb's xritag field. - In lpfc_sli4_seq_abort_acc check the return value of lpfc_sli_issue_iocb. - Inprove messages in this area. Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/lpfc/lpfc_hw.h | 2 +- drivers/scsi/lpfc/lpfc_hw4.h | 12 +++++- drivers/scsi/lpfc/lpfc_sli.c | 99 ++++++++++++++++++++++++++++++-------------- 3 files changed, 81 insertions(+), 32 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index c3a0e62de491..95f11ed79463 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -3632,7 +3632,7 @@ typedef struct _IOCB { /* IOCB structure */ ASYNCSTAT_FIELDS asyncstat; /* async_status iocb */ QUE_XRI64_CX_FIELDS quexri64cx; /* que_xri64_cx fields */ struct rcv_seq64 rcvseq64; /* RCV_SEQ64 and RCV_CONT64 */ - struct sli4_bls_acc bls_acc; /* UNSOL ABTS BLS_ACC params */ + struct sli4_bls_rsp bls_rsp; /* UNSOL ABTS BLS_RSP params */ uint32_t ulpWord[IOCB_WORD_SZ - 2]; /* generic 6 'words' */ } un; union { diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index b42b6994fd94..8433ac0d9fb4 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -215,7 +215,7 @@ struct lpfc_sli4_flags { #define lpfc_fip_flag_WORD word0 }; -struct sli4_bls_acc { +struct sli4_bls_rsp { uint32_t word0_rsvd; /* Word0 must be reserved */ uint32_t word1; #define lpfc_abts_orig_SHIFT 0 @@ -231,6 +231,16 @@ struct sli4_bls_acc { #define lpfc_abts_oxid_MASK 0x0000FFFF #define lpfc_abts_oxid_WORD word2 uint32_t word3; +#define lpfc_vndr_code_SHIFT 0 +#define lpfc_vndr_code_MASK 0x000000FF +#define lpfc_vndr_code_WORD word3 +#define lpfc_rsn_expln_SHIFT 8 +#define lpfc_rsn_expln_MASK 0x000000FF +#define lpfc_rsn_expln_WORD word3 +#define lpfc_rsn_code_SHIFT 16 +#define lpfc_rsn_code_MASK 0x000000FF +#define lpfc_rsn_code_WORD word3 + uint32_t word4; uint32_t word5_rsvd; /* Word5 must be reserved */ }; diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 3218c184be6f..cca5f2d78a54 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -6311,7 +6311,6 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, bf_set(lpfc_sli4_sge_last, sgl, 1); else bf_set(lpfc_sli4_sge_last, sgl, 0); - sgl->word2 = cpu_to_le32(sgl->word2); /* swap the size field back to the cpu so we * can assign it to the sgl. */ @@ -6331,6 +6330,7 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, bf_set(lpfc_sli4_sge_offset, sgl, offset); offset += bde.tus.f.bdeSize; } + sgl->word2 = cpu_to_le32(sgl->word2); bpl++; sgl++; } @@ -6576,9 +6576,9 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize / sizeof(struct ulp_bde64); for (i = 0; i < numBdes; i++) { - if (bpl[i].tus.f.bdeFlags != BUFF_TYPE_BDE_64) - break; bde.tus.w = le32_to_cpu(bpl[i].tus.w); + if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64) + break; xmit_len += bde.tus.f.bdeSize; } /* word3 iocb=IO_TAG wqe=request_payload_len */ @@ -6668,15 +6668,15 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, xritag = 0; break; case CMD_XMIT_BLS_RSP64_CX: - /* As BLS ABTS-ACC WQE is very different from other WQEs, + /* As BLS ABTS RSP WQE is very different from other WQEs, * we re-construct this WQE here based on information in * iocbq from scratch. */ memset(wqe, 0, sizeof(union lpfc_wqe)); /* OX_ID is invariable to who sent ABTS to CT exchange */ bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp, - bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc)); - if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) == + bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp)); + if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) == LPFC_ABTS_UNSOL_INT) { /* ABTS sent by initiator to CT exchange, the * RX_ID field will be filled with the newly @@ -6690,7 +6690,7 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, * RX_ID from ABTS. */ bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp, - bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc)); + bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp)); } bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff); bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1); @@ -6701,6 +6701,15 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, LPFC_WQE_LENLOC_NONE); /* Overwrite the pre-set comnd type with OTHER_COMMAND */ command_type = OTHER_COMMAND; + if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) { + bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp, + bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp)); + bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp, + bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp)); + bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp, + bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp)); + } + break; case CMD_XRI_ABORTED_CX: case CMD_CREATE_XRI_CR: /* Do we expect to use this? */ @@ -6749,7 +6758,8 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, if (piocb->sli4_xritag == NO_XRI) { if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || - piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) + piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN || + piocb->iocb.ulpCommand == CMD_XMIT_BLS_RSP64_CX) sglq = NULL; else { if (pring->txq_cnt) { @@ -11740,6 +11750,7 @@ lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) static char *rctl_names[] = FC_RCTL_NAMES_INIT; char *type_names[] = FC_TYPE_NAMES_INIT; struct fc_vft_header *fc_vft_hdr; + uint32_t *header = (uint32_t *) fc_hdr; switch (fc_hdr->fh_r_ctl) { case FC_RCTL_DD_UNCAT: /* uncategorized information */ @@ -11788,10 +11799,15 @@ lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) default: goto drop; } + lpfc_printf_log(phba, KERN_INFO, LOG_ELS, - "2538 Received frame rctl:%s type:%s\n", + "2538 Received frame rctl:%s type:%s " + "Frame Data:%08x %08x %08x %08x %08x %08x\n", rctl_names[fc_hdr->fh_r_ctl], - type_names[fc_hdr->fh_type]); + type_names[fc_hdr->fh_type], + be32_to_cpu(header[0]), be32_to_cpu(header[1]), + be32_to_cpu(header[2]), be32_to_cpu(header[3]), + be32_to_cpu(header[4]), be32_to_cpu(header[5])); return 0; drop: lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, @@ -12088,17 +12104,17 @@ lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport, } /** - * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler + * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler * @phba: Pointer to HBA context object. * @cmd_iocbq: pointer to the command iocbq structure. * @rsp_iocbq: pointer to the response iocbq structure. * - * This function handles the sequence abort accept iocb command complete + * This function handles the sequence abort response iocb command complete * event. It properly releases the memory allocated to the sequence abort * accept iocb. **/ static void -lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba, +lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmd_iocbq, struct lpfc_iocbq *rsp_iocbq) { @@ -12107,15 +12123,15 @@ lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba, } /** - * lpfc_sli4_seq_abort_acc - Accept sequence abort + * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort * @phba: Pointer to HBA context object. * @fc_hdr: pointer to a FC frame header. * - * This function sends a basic accept to a previous unsol sequence abort + * This function sends a basic response to a previous unsol sequence abort * event after aborting the sequence handling. **/ static void -lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, +lpfc_sli4_seq_abort_rsp(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) { struct lpfc_iocbq *ctiocb = NULL; @@ -12123,6 +12139,7 @@ lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, uint16_t oxid, rxid; uint32_t sid, fctl; IOCB_t *icmd; + int rc; if (!lpfc_is_link_up(phba)) return; @@ -12143,7 +12160,7 @@ lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, + phba->sli4_hba.max_cfg_param.xri_base)) lpfc_set_rrq_active(phba, ndlp, rxid, oxid, 0); - /* Allocate buffer for acc iocb */ + /* Allocate buffer for rsp iocb */ ctiocb = lpfc_sli_get_iocbq(phba); if (!ctiocb) return; @@ -12168,32 +12185,54 @@ lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, ctiocb->iocb_cmpl = NULL; ctiocb->vport = phba->pport; - ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl; + ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl; + ctiocb->sli4_xritag = NO_XRI; + + /* If the oxid maps to the FCP XRI range or if it is out of range, + * send a BLS_RJT. The driver no longer has that exchange. + * Override the IOCB for a BA_RJT. + */ + if (oxid > (phba->sli4_hba.max_cfg_param.max_xri + + phba->sli4_hba.max_cfg_param.xri_base) || + oxid > (lpfc_sli4_get_els_iocb_cnt(phba) + + phba->sli4_hba.max_cfg_param.xri_base)) { + icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT; + bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0); + bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID); + bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE); + } if (fctl & FC_FC_EX_CTX) { /* ABTS sent by responder to CT exchange, construction * of BA_ACC will use OX_ID from ABTS for the XRI_TAG * field and RX_ID from ABTS for RX_ID field. */ - bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP); - bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid); - ctiocb->sli4_xritag = oxid; + bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP); + bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid); } else { /* ABTS sent by initiator to CT exchange, construction * of BA_ACC will need to allocate a new XRI as for the * XRI_TAG and RX_ID fields. */ - bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT); - bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI); - ctiocb->sli4_xritag = NO_XRI; + bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT); + bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, NO_XRI); } - bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid); + bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid); - /* Xmit CT abts accept on exchange <xid> */ + /* Xmit CT abts response on exchange <xid> */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, - "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n", - CMD_XMIT_BLS_RSP64_CX, phba->link_state); - lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); + "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n", + icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state); + + rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); + if (rc == IOCB_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_ELS, + "2925 Failed to issue CT ABTS RSP x%x on " + "xri x%x, Data x%x\n", + icmd->un.xseq64.w5.hcsw.Rctl, oxid, + phba->link_state); + lpfc_sli_release_iocbq(phba, ctiocb); + } } /** @@ -12241,7 +12280,7 @@ lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport, lpfc_in_buf_free(phba, &dmabuf->dbuf); } /* Send basic accept (BA_ACC) to the abort requester */ - lpfc_sli4_seq_abort_acc(phba, &fc_hdr); + lpfc_sli4_seq_abort_rsp(phba, &fc_hdr); } /** -- cgit v1.2.3 From 792581de597c78ee353b6e2a06490f0ef576032e Mon Sep 17 00:00:00 2001 From: James Smart <james.smart@emulex.com> Date: Fri, 11 Mar 2011 16:06:44 -0500 Subject: [SCSI] lpfc 8.3.22: Update Copyright Dates Update Copyright Dates Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/lpfc/Makefile | 2 +- drivers/scsi/lpfc/lpfc_bsg.c | 2 +- drivers/scsi/lpfc/lpfc_crtn.h | 2 +- drivers/scsi/lpfc/lpfc_init.c | 2 +- drivers/scsi/lpfc/lpfc_scsi.c | 2 +- drivers/scsi/lpfc/lpfc_sli.c | 2 +- drivers/scsi/lpfc/lpfc_sli4.h | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/lpfc/Makefile b/drivers/scsi/lpfc/Makefile index 14de249917f8..88928f00aa2d 100644 --- a/drivers/scsi/lpfc/Makefile +++ b/drivers/scsi/lpfc/Makefile @@ -1,7 +1,7 @@ #/******************************************************************* # * This file is part of the Emulex Linux Device Driver for * # * Fibre Channel Host Bus Adapters. * -# * Copyright (C) 2004-2006 Emulex. All rights reserved. * +# * Copyright (C) 2004-2011 Emulex. All rights reserved. * # * EMULEX and SLI are trademarks of Emulex. * # * www.emulex.com * # * * diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c index d9b91b3f942f..793b9f1131fb 100644 --- a/drivers/scsi/lpfc/lpfc_bsg.c +++ b/drivers/scsi/lpfc/lpfc_bsg.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2009-2010 Emulex. All rights reserved. * + * Copyright (C) 2009-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 60281d875184..f0b332f4eedb 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2010 Emulex. All rights reserved. * + * Copyright (C) 2004-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index d5d07a890b67..e6ebe516cfbb 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2010 Emulex. All rights reserved. * + * Copyright (C) 2004-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index e3a1d295e4dc..2b962b020cfb 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2009 Emulex. All rights reserved. * + * Copyright (C) 2004-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index cca5f2d78a54..4746dcd756dd 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2009 Emulex. All rights reserved. * + * Copyright (C) 2004-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 595056b89608..1a3cbf88f2ce 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2009 Emulex. All rights reserved. * + * Copyright (C) 2009-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * -- cgit v1.2.3 From 4b3203052494ea7b0a445ace676cd2013917c807 Mon Sep 17 00:00:00 2001 From: James Smart <james.smart@emulex.com> Date: Fri, 11 Mar 2011 16:06:58 -0500 Subject: [SCSI] lpfc 8.3.22: Update driver version to 8.3.22 Update driver version to 8.3.22 Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/lpfc/lpfc_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h index 0a4d376dbca5..2404d1d65563 100644 --- a/drivers/scsi/lpfc/lpfc_version.h +++ b/drivers/scsi/lpfc/lpfc_version.h @@ -18,7 +18,7 @@ * included with this package. * *******************************************************************/ -#define LPFC_DRIVER_VERSION "8.3.21" +#define LPFC_DRIVER_VERSION "8.3.22" #define LPFC_DRIVER_NAME "lpfc" #define LPFC_SP_DRIVER_HANDLER_NAME "lpfc:sp" #define LPFC_FP_DRIVER_HANDLER_NAME "lpfc:fp" -- cgit v1.2.3 From 8fc1858a42663248d5b362edc313786e0be7a639 Mon Sep 17 00:00:00 2001 From: Roland Dreier <rolandd@cisco.com> Date: Mon, 14 Mar 2011 04:05:55 -0700 Subject: [SCSI] target: Fix memory leak on error path in pscsi_alloc_task If allocation of pt->pscsi_cdb fails, we need to free the just-allocated pt or else it will be leaked. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_pscsi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 5a9d2ba4b609..3031ef8261ef 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -816,6 +816,7 @@ pscsi_alloc_task(struct se_cmd *cmd) if (!(pt->pscsi_cdb)) { printk(KERN_ERR "pSCSI: Unable to allocate extended" " pt->pscsi_cdb\n"); + kfree(pt); return NULL; } } else -- cgit v1.2.3 From 6d1802539d218e24492c651bd0687ebfe7e14831 Mon Sep 17 00:00:00 2001 From: Jesper Juhl <jj@chaosbits.net> Date: Mon, 14 Mar 2011 04:05:56 -0700 Subject: [SCSI] target: Fix match_strdup() memory leaks match_strdup() dynamically allocates memory and it is the responsabillity of the caller to free that memory. The following three cases: drivers/target/target_core_file.c:fd_set_configfs_dev_params() drivers/target/target_core_iblock.c:iblock_set_configfs_dev_params() drivers/target/target_core_configfs.c:target_core_dev_pr_store_attr_res_aptpl_metadata() should be kfree()'ing the allocated memory once it is no longer needed. It also makes sure to return -ENOMEM if the memory allocation in match_strdup() should fail. For target_core_configfs.c, this patch adds kfree()'s around Opt_initiator_fabric, Opt_initiator_node, Opt_initiator_sid, Opt_sa_res_key, Opt_target_fabric, and Opt_target_node for the Persistent Reservations Activate Persistence across Target Power Loss (APTPL=1) token parsing. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_configfs.c | 33 +++++++++++++++++++++++++++++++-- drivers/target/target_core_file.c | 13 ++++++++++++- drivers/target/target_core_iblock.c | 13 +++++++++---- 3 files changed, 52 insertions(+), 7 deletions(-) diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index caf8dc18ee0a..c9254d7ad18a 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -1451,8 +1451,8 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( size_t count) { struct se_device *dev; - unsigned char *i_fabric, *t_fabric, *i_port = NULL, *t_port = NULL; - unsigned char *isid = NULL; + unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL; + unsigned char *t_fabric = NULL, *t_port = NULL; char *orig, *ptr, *arg_p, *opts; substring_t args[MAX_OPT_ARGS]; unsigned long long tmp_ll; @@ -1488,9 +1488,17 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( switch (token) { case Opt_initiator_fabric: i_fabric = match_strdup(&args[0]); + if (!i_fabric) { + ret = -ENOMEM; + goto out; + } break; case Opt_initiator_node: i_port = match_strdup(&args[0]); + if (!i_port) { + ret = -ENOMEM; + goto out; + } if (strlen(i_port) > PR_APTPL_MAX_IPORT_LEN) { printk(KERN_ERR "APTPL metadata initiator_node=" " exceeds PR_APTPL_MAX_IPORT_LEN: %d\n", @@ -1501,6 +1509,10 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( break; case Opt_initiator_sid: isid = match_strdup(&args[0]); + if (!isid) { + ret = -ENOMEM; + goto out; + } if (strlen(isid) > PR_REG_ISID_LEN) { printk(KERN_ERR "APTPL metadata initiator_isid" "= exceeds PR_REG_ISID_LEN: %d\n", @@ -1511,6 +1523,10 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( break; case Opt_sa_res_key: arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + goto out; + } ret = strict_strtoull(arg_p, 0, &tmp_ll); if (ret < 0) { printk(KERN_ERR "strict_strtoull() failed for" @@ -1547,9 +1563,17 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( */ case Opt_target_fabric: t_fabric = match_strdup(&args[0]); + if (!t_fabric) { + ret = -ENOMEM; + goto out; + } break; case Opt_target_node: t_port = match_strdup(&args[0]); + if (!t_port) { + ret = -ENOMEM; + goto out; + } if (strlen(t_port) > PR_APTPL_MAX_TPORT_LEN) { printk(KERN_ERR "APTPL metadata target_node=" " exceeds PR_APTPL_MAX_TPORT_LEN: %d\n", @@ -1592,6 +1616,11 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( i_port, isid, mapped_lun, t_port, tpgt, target_lun, res_holder, all_tg_pt, type); out: + kfree(i_fabric); + kfree(i_port); + kfree(isid); + kfree(t_fabric); + kfree(t_port); kfree(orig); return (ret == 0) ? count : ret; } diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 190ca8ac2498..7850c6ae06e4 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -536,15 +536,26 @@ static ssize_t fd_set_configfs_dev_params( token = match_token(ptr, tokens, args); switch (token) { case Opt_fd_dev_name: + arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + break; + } snprintf(fd_dev->fd_dev_name, FD_MAX_DEV_NAME, - "%s", match_strdup(&args[0])); + "%s", arg_p); + kfree(arg_p); printk(KERN_INFO "FILEIO: Referencing Path: %s\n", fd_dev->fd_dev_name); fd_dev->fbd_flags |= FBDF_HAS_PATH; break; case Opt_fd_dev_size: arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + break; + } ret = strict_strtoull(arg_p, 0, &fd_dev->fd_dev_size); + kfree(arg_p); if (ret < 0) { printk(KERN_ERR "strict_strtoull() failed for" " fd_dev_size=\n"); diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 3df570db0e4f..96d98cc8f85b 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -468,7 +468,7 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba, const char *page, ssize_t count) { struct iblock_dev *ib_dev = se_dev->se_dev_su_ptr; - char *orig, *ptr, *opts; + char *orig, *ptr, *arg_p, *opts; substring_t args[MAX_OPT_ARGS]; int ret = 0, arg, token; @@ -491,9 +491,14 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba, ret = -EEXIST; goto out; } - - ret = snprintf(ib_dev->ibd_udev_path, SE_UDEV_PATH_LEN, - "%s", match_strdup(&args[0])); + arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + break; + } + snprintf(ib_dev->ibd_udev_path, SE_UDEV_PATH_LEN, + "%s", arg_p); + kfree(arg_p); printk(KERN_INFO "IBLOCK: Referencing UDEV path: %s\n", ib_dev->ibd_udev_path); ib_dev->ibd_flags |= IBDF_HAS_UDEV_PATH; -- cgit v1.2.3 From 10635c8b71957449b4c53c5f6b9210cc1a7d984d Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab@linux-iscsi.org> Date: Mon, 14 Mar 2011 04:05:57 -0700 Subject: [SCSI] target: tcm_mod_builder.py generated Makefile cleanups This patch converts the tcm_mod_builder.py generation script to create a new drivers/target/$TCM_FABRIC_MOD/Makefile and update drivers/target/Makefile, instead of creating+updating a 'Kbuild' filename. It also removes the remaining EXTRA_CFLAGS includes from tcm_mod_build_kbuild(), and converts fabric module generated .c code to us ""-style includes for $FABRIC_MOD_[base,fabric].h Reported-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- Documentation/target/tcm_mod_builder.py | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py index dbeb8a0d7175..89af6c7a7c8f 100755 --- a/Documentation/target/tcm_mod_builder.py +++ b/Documentation/target/tcm_mod_builder.py @@ -239,8 +239,8 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "#include <target/target_core_configfs.h>\n" buf += "#include <target/target_core_base.h>\n" buf += "#include <target/configfs_macros.h>\n\n" - buf += "#include <" + fabric_mod_name + "_base.h>\n" - buf += "#include <" + fabric_mod_name + "_fabric.h>\n\n" + buf += "#include \"" + fabric_mod_name + "_base.h\"\n" + buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n" buf += "/* Local pointer to allocated TCM configfs fabric module */\n" buf += "struct target_fabric_configfs *" + fabric_mod_name + "_fabric_configfs;\n\n" @@ -583,9 +583,9 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "#include <target/target_core_fabric_lib.h>\n" buf += "#include <target/target_core_device.h>\n" buf += "#include <target/target_core_tpg.h>\n" - buf += "#include <target/target_core_configfs.h>\n" - buf += "#include <" + fabric_mod_name + "_base.h>\n" - buf += "#include <" + fabric_mod_name + "_fabric.h>\n\n" + buf += "#include <target/target_core_configfs.h>\n\n" + buf += "#include \"" + fabric_mod_name + "_base.h\"\n" + buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n" buf += "int " + fabric_mod_name + "_check_true(struct se_portal_group *se_tpg)\n" buf += "{\n" @@ -973,14 +973,13 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name): def tcm_mod_build_kbuild(fabric_mod_dir_var, fabric_mod_name): buf = "" - f = fabric_mod_dir_var + "/Kbuild" + f = fabric_mod_dir_var + "/Makefile" print "Writing file: " + f p = open(f, 'w') if not p: tcm_mod_err("Unable to open file: " + f) - buf = "EXTRA_CFLAGS += -I$(srctree)/drivers/target/ -I$(srctree)/include/ -I$(srctree)/drivers/scsi/ -I$(srctree)/include/scsi/ -I$(srctree)/drivers/target/" + fabric_mod_name + "\n\n" buf += fabric_mod_name + "-objs := " + fabric_mod_name + "_fabric.o \\\n" buf += " " + fabric_mod_name + "_configfs.o\n" buf += "obj-$(CONFIG_" + fabric_mod_name.upper() + ") += " + fabric_mod_name + ".o\n" @@ -1018,7 +1017,7 @@ def tcm_mod_build_kconfig(fabric_mod_dir_var, fabric_mod_name): def tcm_mod_add_kbuild(tcm_dir, fabric_mod_name): buf = "obj-$(CONFIG_" + fabric_mod_name.upper() + ") += " + fabric_mod_name.lower() + "/\n" - kbuild = tcm_dir + "/drivers/target/Kbuild" + kbuild = tcm_dir + "/drivers/target/Makefile" f = open(kbuild, 'a') f.write(buf) @@ -1064,7 +1063,7 @@ def main(modname, proto_ident): tcm_mod_build_kbuild(fabric_mod_dir, fabric_mod_name) tcm_mod_build_kconfig(fabric_mod_dir, fabric_mod_name) - input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Kbuild..? [yes,no]: ") + input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Makefile..? [yes,no]: ") if input == "yes" or input == "y": tcm_mod_add_kbuild(tcm_dir, fabric_mod_name) -- cgit v1.2.3 From 5e8de4f3199446f5eeb371312da20534ebfe9979 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig <hch@lst.de> Date: Mon, 14 Mar 2011 04:05:58 -0700 Subject: [SCSI] target: remove EXTRA_CFLAGS Add the current directory is superflous in general, and no includes in drivers/scsi are needed either. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/Makefile | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/target/Makefile b/drivers/target/Makefile index 973bb190ef57..050ee6569b2b 100644 --- a/drivers/target/Makefile +++ b/drivers/target/Makefile @@ -1,4 +1,3 @@ -EXTRA_CFLAGS += -I$(srctree)/drivers/target/ -I$(srctree)/drivers/scsi/ target_core_mod-y := target_core_configfs.o \ target_core_device.o \ -- cgit v1.2.3 From 613640e4e1b5358ce880d16f10ecc2550b32b250 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab@linux-iscsi.org> Date: Mon, 14 Mar 2011 04:05:59 -0700 Subject: [SCSI] target: Convert backend ->create_virtdevice() call to return ERR_PTR This patch converts the target_core_store_dev_enable() -> struct se_subsystem_api->create_virtdevice() call to return proper ERR_PTR values back up to configfs logic during backend dependent struct se_device ENABLE exception conditions. Along with the change to target_core_configfs.c, this includes converting IBLOCK, FILEIO, pSCSI, and RAMDISK_* backend subsystem plugins to obtain upper level PTR_ERR return codes (where available), and return via ERR_PTR during a *_create_virtdev() failure. Reported-by: Fubo Chen <fubo.chen@gmail.com> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_configfs.c | 4 +++- drivers/target/target_core_file.c | 13 +++++++++---- drivers/target/target_core_iblock.c | 15 ++++++++------- drivers/target/target_core_pscsi.c | 18 +++++++++--------- drivers/target/target_core_rd.c | 8 +++++--- 5 files changed, 34 insertions(+), 24 deletions(-) diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index c9254d7ad18a..9721ef28335c 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -1827,7 +1827,9 @@ static ssize_t target_core_store_dev_enable( return -EINVAL; dev = t->create_virtdevice(hba, se_dev, se_dev->se_dev_su_ptr); - if (!(dev) || IS_ERR(dev)) + if (IS_ERR(dev)) + return PTR_ERR(dev); + else if (!dev) return -EINVAL; se_dev->se_dev_ptr = dev; diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 7850c6ae06e4..03fa40f72ef7 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -134,7 +134,7 @@ static struct se_device *fd_create_virtdevice( mm_segment_t old_fs; struct file *file; struct inode *inode = NULL; - int dev_flags = 0, flags; + int dev_flags = 0, flags, ret = -EINVAL; memset(&dev_limits, 0, sizeof(struct se_dev_limits)); @@ -146,6 +146,7 @@ static struct se_device *fd_create_virtdevice( if (IS_ERR(dev_p)) { printk(KERN_ERR "getname(%s) failed: %lu\n", fd_dev->fd_dev_name, IS_ERR(dev_p)); + ret = PTR_ERR(dev_p); goto fail; } #if 0 @@ -165,8 +166,12 @@ static struct se_device *fd_create_virtdevice( flags |= O_SYNC; file = filp_open(dev_p, flags, 0600); - - if (IS_ERR(file) || !file || !file->f_dentry) { + if (IS_ERR(file)) { + printk(KERN_ERR "filp_open(%s) failed\n", dev_p); + ret = PTR_ERR(file); + goto fail; + } + if (!file || !file->f_dentry) { printk(KERN_ERR "filp_open(%s) failed\n", dev_p); goto fail; } @@ -241,7 +246,7 @@ fail: fd_dev->fd_file = NULL; } putname(dev_p); - return NULL; + return ERR_PTR(ret); } /* fd_free_device(): (Part of se_subsystem_api_t template) diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 96d98cc8f85b..0f4a50935a86 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -129,10 +129,11 @@ static struct se_device *iblock_create_virtdevice( struct request_queue *q; struct queue_limits *limits; u32 dev_flags = 0; + int ret = -EINVAL; if (!(ib_dev)) { printk(KERN_ERR "Unable to locate struct iblock_dev parameter\n"); - return 0; + return ERR_PTR(ret); } memset(&dev_limits, 0, sizeof(struct se_dev_limits)); /* @@ -141,7 +142,7 @@ static struct se_device *iblock_create_virtdevice( ib_dev->ibd_bio_set = bioset_create(32, 64); if (!(ib_dev->ibd_bio_set)) { printk(KERN_ERR "IBLOCK: Unable to create bioset()\n"); - return 0; + return ERR_PTR(-ENOMEM); } printk(KERN_INFO "IBLOCK: Created bio_set()\n"); /* @@ -153,8 +154,10 @@ static struct se_device *iblock_create_virtdevice( bd = blkdev_get_by_path(ib_dev->ibd_udev_path, FMODE_WRITE|FMODE_READ|FMODE_EXCL, ib_dev); - if (IS_ERR(bd)) + if (IS_ERR(bd)) { + ret = PTR_ERR(bd); goto failed; + } /* * Setup the local scope queue_limits from struct request_queue->limits * to pass into transport_add_device_to_core_hba() as struct se_dev_limits. @@ -184,9 +187,7 @@ static struct se_device *iblock_create_virtdevice( * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM * in ATA and we need to set TPE=1 */ - if (blk_queue_discard(bdev_get_queue(bd))) { - struct request_queue *q = bdev_get_queue(bd); - + if (blk_queue_discard(q)) { DEV_ATTRIB(dev)->max_unmap_lba_count = q->limits.max_discard_sectors; /* @@ -212,7 +213,7 @@ failed: ib_dev->ibd_bd = NULL; ib_dev->ibd_major = 0; ib_dev->ibd_minor = 0; - return NULL; + return ERR_PTR(ret); } static void iblock_free_device(void *p) diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 3031ef8261ef..51fd309388fc 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -555,7 +555,7 @@ static struct se_device *pscsi_create_virtdevice( if (!(pdv)) { printk(KERN_ERR "Unable to locate struct pscsi_dev_virt" " parameter\n"); - return NULL; + return ERR_PTR(-EINVAL); } /* * If not running in PHV_LLD_SCSI_HOST_NO mode, locate the @@ -565,7 +565,7 @@ static struct se_device *pscsi_create_virtdevice( if (phv->phv_mode == PHV_LLD_SCSI_HOST_NO) { printk(KERN_ERR "pSCSI: Unable to locate struct" " Scsi_Host for PHV_LLD_SCSI_HOST_NO\n"); - return NULL; + return ERR_PTR(-ENODEV); } /* * For the newer PHV_VIRUTAL_HOST_ID struct scsi_device @@ -574,7 +574,7 @@ static struct se_device *pscsi_create_virtdevice( if (!(se_dev->su_dev_flags & SDF_USING_UDEV_PATH)) { printk(KERN_ERR "pSCSI: udev_path attribute has not" " been set before ENABLE=1\n"); - return NULL; + return ERR_PTR(-EINVAL); } /* * If no scsi_host_id= was passed for PHV_VIRUTAL_HOST_ID, @@ -587,12 +587,12 @@ static struct se_device *pscsi_create_virtdevice( printk(KERN_ERR "pSCSI: Unable to set hba_mode" " with active devices\n"); spin_unlock(&hba->device_lock); - return NULL; + return ERR_PTR(-EEXIST); } spin_unlock(&hba->device_lock); if (pscsi_pmode_enable_hba(hba, 1) != 1) - return NULL; + return ERR_PTR(-ENODEV); legacy_mode_enable = 1; hba->hba_flags |= HBA_FLAGS_PSCSI_MODE; @@ -602,14 +602,14 @@ static struct se_device *pscsi_create_virtdevice( if (!(sh)) { printk(KERN_ERR "pSCSI: Unable to locate" " pdv_host_id: %d\n", pdv->pdv_host_id); - return NULL; + return ERR_PTR(-ENODEV); } } } else { if (phv->phv_mode == PHV_VIRUTAL_HOST_ID) { printk(KERN_ERR "pSCSI: PHV_VIRUTAL_HOST_ID set while" " struct Scsi_Host exists\n"); - return NULL; + return ERR_PTR(-EEXIST); } } @@ -644,7 +644,7 @@ static struct se_device *pscsi_create_virtdevice( hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE; } pdv->pdv_sd = NULL; - return NULL; + return ERR_PTR(-ENODEV); } return dev; } @@ -660,7 +660,7 @@ static struct se_device *pscsi_create_virtdevice( hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE; } - return NULL; + return ERR_PTR(-ENODEV); } /* pscsi_free_device(): (Part of se_subsystem_api_t template) diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 8dc6d74c1d40..f36094f0596a 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -253,13 +253,15 @@ static struct se_device *rd_create_virtdevice( struct se_dev_limits dev_limits; struct rd_dev *rd_dev = p; struct rd_host *rd_host = hba->hba_ptr; - int dev_flags = 0; + int dev_flags = 0, ret = -EINVAL; char prod[16], rev[4]; memset(&dev_limits, 0, sizeof(struct se_dev_limits)); - if (rd_build_device_space(rd_dev) < 0) + if (rd_build_device_space(rd_dev) < 0) { + ret = -ENOMEM; goto fail; + } snprintf(prod, 16, "RAMDISK-%s", (rd_dev->rd_direct) ? "DR" : "MCP"); snprintf(rev, 4, "%s", (rd_dev->rd_direct) ? RD_DR_VERSION : @@ -292,7 +294,7 @@ static struct se_device *rd_create_virtdevice( fail: rd_release_device_space(rd_dev); - return NULL; + return ERR_PTR(ret); } static struct se_device *rd_DIRECT_create_virtdevice( -- cgit v1.2.3 From 05aea6e7e497ab418239ae54fe5966d52cbd8550 Mon Sep 17 00:00:00 2001 From: Fubo Chen <fubo.chen@gmail.com> Date: Mon, 14 Mar 2011 04:06:00 -0700 Subject: [SCSI] target: Remove unnecessary hba_dev_list walk and se_clear_dev_ports legacy code This patch removes a legacy struct se_hba->hba_dev_list -> se_release_device_for_hba() list walk in core_delete_hba(), which is no longer required while using configfs VFS level parent/child struct config_group dependency referencing. The reason is because any struct se_hba->hba_dev_list-> struct se_device members are going to have to be released via: rmdir /sys/kernel/config/target/core/$HBA/* before rmdir release of struct se_hba via target_core_configfs.c: target_core_call_delhbafromtarget() -> core_delete_hba() rmdir /sys/kernel/config/target/core/$HBA to release struct se_hba in core_delete_hba(). This patch also removes the legacy se_clear_dev_ports() function, which is left-over pre-configfs shutdown logic for when se_free_virtual_device() was responsible for walking struct se_device->dev_sep_list and calling core_dev_del_lun() for each individual active struct se_port->se_lun. The reason this can be removed is because all struct se_device->dev_sep_list -> struct se_port communication is done via configfs symlinks, which means that an target fabric module's endpoints containg active struct se_port(s) will have to be released via target_core_fabric_configfs.c: target_fabric_port_unlink() via: unlink /sys/kernel/config/target/$FABRIC_MOD/$ENDPOINT/tpgt_$TPGT/lun/lun_$LUN_ID/<symlink> before rmdir release of struct se_device in target_core_configfs.c: target_core_drop_subdev() -> se_free_virtual_device() can happen via: rmdir /sys/kernel/config/target/core/$HBA/* to release struct se_subsystem_dev in target_core_drop_subdev() Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Reported-by: Fubo Chen <fubo.chen@gmail.com> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_device.c | 39 ++----------------------------------- drivers/target/target_core_hba.c | 15 ++------------ 2 files changed, 4 insertions(+), 50 deletions(-) diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 350ed401544e..9e182bd245f0 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -779,49 +779,14 @@ void se_release_vpd_for_dev(struct se_device *dev) return; } -/* - * Called with struct se_hba->device_lock held. - */ -void se_clear_dev_ports(struct se_device *dev) -{ - struct se_hba *hba = dev->se_hba; - struct se_lun *lun; - struct se_portal_group *tpg; - struct se_port *sep, *sep_tmp; - - spin_lock(&dev->se_port_lock); - list_for_each_entry_safe(sep, sep_tmp, &dev->dev_sep_list, sep_list) { - spin_unlock(&dev->se_port_lock); - spin_unlock(&hba->device_lock); - - lun = sep->sep_lun; - tpg = sep->sep_tpg; - spin_lock(&lun->lun_sep_lock); - if (lun->lun_se_dev == NULL) { - spin_unlock(&lun->lun_sep_lock); - continue; - } - spin_unlock(&lun->lun_sep_lock); - - core_dev_del_lun(tpg, lun->unpacked_lun); - - spin_lock(&hba->device_lock); - spin_lock(&dev->se_port_lock); - } - spin_unlock(&dev->se_port_lock); - - return; -} - /* se_free_virtual_device(): * * Used for IBLOCK, RAMDISK, and FILEIO Transport Drivers. */ int se_free_virtual_device(struct se_device *dev, struct se_hba *hba) { - spin_lock(&hba->device_lock); - se_clear_dev_ports(dev); - spin_unlock(&hba->device_lock); + if (!list_empty(&dev->dev_sep_list)) + dump_stack(); core_alua_free_lu_gp_mem(dev); se_release_device_for_hba(dev); diff --git a/drivers/target/target_core_hba.c b/drivers/target/target_core_hba.c index 6ec51cbc018e..0b8f8da89019 100644 --- a/drivers/target/target_core_hba.c +++ b/drivers/target/target_core_hba.c @@ -151,19 +151,8 @@ out_free_hba: int core_delete_hba(struct se_hba *hba) { - struct se_device *dev, *dev_tmp; - - spin_lock(&hba->device_lock); - list_for_each_entry_safe(dev, dev_tmp, &hba->hba_dev_list, dev_list) { - - se_clear_dev_ports(dev); - spin_unlock(&hba->device_lock); - - se_release_device_for_hba(dev); - - spin_lock(&hba->device_lock); - } - spin_unlock(&hba->device_lock); + if (!list_empty(&hba->hba_dev_list)) + dump_stack(); hba->transport->detach_hba(hba); -- cgit v1.2.3 From 5dd7ed2e811d5cd12f31fb7f0c5ad0107d494a12 Mon Sep 17 00:00:00 2001 From: Dan Carpenter <error27@gmail.com> Date: Mon, 14 Mar 2011 04:06:01 -0700 Subject: [SCSI] target: Minor sparse warning fixes and annotations This patch addresses the majority of sparse warnings and adds proper locking annotations. It also fixes the dubious one-bit signed bitfield, for which the signed one-bit types can be 0 or -1 which can cause a problem if someone ever checks if (foo->lu_gp_assoc == 1). The current code is fine because everyone just checks zero vs non-zero. But Sparse complains about it so lets change it. The warnings look like this: include/target/target_core_base.h:228:26: error: dubious one-bit signed bitfield Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Fubo Chen <fubo.chen@gmail.com> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_device.c | 1 + drivers/target/target_core_fabric_lib.c | 1 + drivers/target/target_core_pscsi.c | 3 +++ drivers/target/target_core_rd.h | 2 -- drivers/target/target_core_transport.c | 4 +--- include/target/target_core_base.h | 14 +++++++------- include/target/target_core_fabric_ops.h | 2 +- include/target/target_core_transport.h | 4 ++++ 8 files changed, 18 insertions(+), 13 deletions(-) diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 9e182bd245f0..3fb8e32506ed 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -589,6 +589,7 @@ static void core_export_port( * Called with struct se_device->se_port_lock spinlock held. */ static void core_release_port(struct se_device *dev, struct se_port *port) + __releases(&dev->se_port_lock) __acquires(&dev->se_port_lock) { /* * Wait for any port reference for PR ALL_TG_PT=1 operation diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c index a3c695adabec..d57ad672677f 100644 --- a/drivers/target/target_core_fabric_lib.c +++ b/drivers/target/target_core_fabric_lib.c @@ -34,6 +34,7 @@ #include <target/target_core_base.h> #include <target/target_core_device.h> #include <target/target_core_transport.h> +#include <target/target_core_fabric_lib.h> #include <target/target_core_fabric_ops.h> #include <target/target_core_configfs.h> diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 51fd309388fc..7ff6a35f26ac 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -441,6 +441,7 @@ static struct se_device *pscsi_create_type_disk( struct pscsi_dev_virt *pdv, struct se_subsystem_dev *se_dev, struct se_hba *hba) + __releases(sh->host_lock) { struct se_device *dev; struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)pdv->pdv_se_hba->hba_ptr; @@ -488,6 +489,7 @@ static struct se_device *pscsi_create_type_rom( struct pscsi_dev_virt *pdv, struct se_subsystem_dev *se_dev, struct se_hba *hba) + __releases(sh->host_lock) { struct se_device *dev; struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)pdv->pdv_se_hba->hba_ptr; @@ -522,6 +524,7 @@ static struct se_device *pscsi_create_type_other( struct pscsi_dev_virt *pdv, struct se_subsystem_dev *se_dev, struct se_hba *hba) + __releases(sh->host_lock) { struct se_device *dev; struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)pdv->pdv_se_hba->hba_ptr; diff --git a/drivers/target/target_core_rd.h b/drivers/target/target_core_rd.h index 13badfbaf9c0..3ea19e29d8ec 100644 --- a/drivers/target/target_core_rd.h +++ b/drivers/target/target_core_rd.h @@ -14,8 +14,6 @@ #define RD_BLOCKSIZE 512 #define RD_MAX_SECTORS 1024 -extern struct kmem_cache *se_mem_cache; - /* Used in target_core_init_configfs() for virtual LUN 0 access */ int __init rd_module_init(void); void rd_module_exit(void); diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index ff9ace01e27a..80df4056f9f1 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -227,8 +227,6 @@ static void transport_remove_cmd_from_queue(struct se_cmd *cmd, static int transport_set_sense_codes(struct se_cmd *cmd, u8 asc, u8 ascq); static void transport_stop_all_task_timers(struct se_cmd *cmd); -int transport_emulate_control_cdb(struct se_task *task); - int init_se_global(void) { struct se_global *global; @@ -4395,7 +4393,7 @@ out: return -1; } -extern u32 transport_calc_sg_num( +u32 transport_calc_sg_num( struct se_task *task, struct se_mem *in_se_mem, u32 task_offset) diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 0828b6c8610a..bc93b7819eba 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -239,7 +239,7 @@ struct t10_alua_lu_gp { } ____cacheline_aligned; struct t10_alua_lu_gp_member { - int lu_gp_assoc:1; + bool lu_gp_assoc; atomic_t lu_gp_mem_ref_cnt; spinlock_t lu_gp_mem_lock; struct t10_alua_lu_gp *lu_gp; @@ -271,7 +271,7 @@ struct t10_alua_tg_pt_gp { } ____cacheline_aligned; struct t10_alua_tg_pt_gp_member { - int tg_pt_gp_assoc:1; + bool tg_pt_gp_assoc; atomic_t tg_pt_gp_mem_ref_cnt; spinlock_t tg_pt_gp_mem_lock; struct t10_alua_tg_pt_gp *tg_pt_gp; @@ -336,7 +336,7 @@ struct t10_pr_registration { int pr_res_type; int pr_res_scope; /* Used for fabric initiator WWPNs using a ISID */ - int isid_present_at_reg:1; + bool isid_present_at_reg; u32 pr_res_mapped_lun; u32 pr_aptpl_target_lun; u32 pr_res_generation; @@ -418,7 +418,7 @@ struct se_transport_task { unsigned long long t_task_lba; int t_tasks_failed; int t_tasks_fua; - int t_tasks_bidi:1; + bool t_tasks_bidi; u32 t_task_cdbs; u32 t_tasks_check; u32 t_tasks_no; @@ -470,7 +470,7 @@ struct se_task { u8 task_flags; int task_error_status; int task_state_flags; - int task_padded_sg:1; + bool task_padded_sg; unsigned long long task_lba; u32 task_no; u32 task_sectors; @@ -583,7 +583,7 @@ struct se_ua { struct se_node_acl { char initiatorname[TRANSPORT_IQN_LEN]; /* Used to signal demo mode created ACL, disabled by default */ - int dynamic_node_acl:1; + bool dynamic_node_acl; u32 queue_depth; u32 acl_index; u64 num_cmds; @@ -632,7 +632,7 @@ struct se_lun_acl { } ____cacheline_aligned; struct se_dev_entry { - int def_pr_registered:1; + bool def_pr_registered; /* See transport_lunflags_table */ u32 lun_flags; u32 deve_cmds; diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h index f3ac12b019c2..5eb8b1ae59d1 100644 --- a/include/target/target_core_fabric_ops.h +++ b/include/target/target_core_fabric_ops.h @@ -8,7 +8,7 @@ struct target_core_fabric_ops { * for scatterlist chaining using transport_do_task_sg_link(), * disabled by default */ - int task_sg_chaining:1; + bool task_sg_chaining; char *(*get_fabric_name)(void); u8 (*get_fabric_proto_ident)(struct se_portal_group *); char *(*tpg_get_wwn)(struct se_portal_group *); diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h index 2e8ec51f0615..59aa464f6ee2 100644 --- a/include/target/target_core_transport.h +++ b/include/target/target_core_transport.h @@ -109,6 +109,8 @@ struct se_mem; struct se_subsystem_api; +extern struct kmem_cache *se_mem_cache; + extern int init_se_global(void); extern void release_se_global(void); extern void init_scsi_index_table(void); @@ -190,6 +192,8 @@ extern void transport_generic_process_write(struct se_cmd *); extern int transport_generic_do_tmr(struct se_cmd *); /* From target_core_alua.c */ extern int core_alua_check_nonop_delay(struct se_cmd *); +/* From target_core_cdb.c */ +extern int transport_emulate_control_cdb(struct se_task *); /* * Each se_transport_task_t can have N number of possible struct se_task's -- cgit v1.2.3 From 35ce9e26d7e0674892f77a9172c898dfcba50064 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab@linux-iscsi.org> Date: Mon, 14 Mar 2011 04:06:02 -0700 Subject: [SCSI] target: Remove spurious double cast from structure macro accessors Reported-by: Fubo Chen <fubo.chen@gmail.com> Cc: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- include/target/target_core_base.h | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index bc93b7819eba..b3a62e451313 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -494,8 +494,8 @@ struct se_task { struct list_head t_state_list; } ____cacheline_aligned; -#define TASK_CMD(task) ((struct se_cmd *)task->task_se_cmd) -#define TASK_DEV(task) ((struct se_device *)task->se_dev) +#define TASK_CMD(task) ((task)->task_se_cmd) +#define TASK_DEV(task) ((task)->se_dev) struct se_cmd { /* SAM response code being sent to initiator */ @@ -551,8 +551,8 @@ struct se_cmd { void (*transport_complete_callback)(struct se_cmd *); } ____cacheline_aligned; -#define T_TASK(cmd) ((struct se_transport_task *)(cmd->t_task)) -#define CMD_TFO(cmd) ((struct target_core_fabric_ops *)cmd->se_tfo) +#define T_TASK(cmd) ((cmd)->t_task) +#define CMD_TFO(cmd) ((cmd)->se_tfo) struct se_tmr_req { /* Task Management function to be preformed */ @@ -615,8 +615,8 @@ struct se_session { struct list_head sess_acl_list; } ____cacheline_aligned; -#define SE_SESS(cmd) ((struct se_session *)(cmd)->se_sess) -#define SE_NODE_ACL(sess) ((struct se_node_acl *)(sess)->se_node_acl) +#define SE_SESS(cmd) ((cmd)->se_sess) +#define SE_NODE_ACL(sess) ((sess)->se_node_acl) struct se_device; struct se_transform_info; @@ -803,8 +803,8 @@ struct se_device { struct list_head g_se_dev_list; } ____cacheline_aligned; -#define SE_DEV(cmd) ((struct se_device *)(cmd)->se_lun->lun_se_dev) -#define SU_DEV(dev) ((struct se_subsystem_dev *)(dev)->se_sub_dev) +#define SE_DEV(cmd) ((cmd)->se_lun->lun_se_dev) +#define SU_DEV(dev) ((dev)->se_sub_dev) #define DEV_ATTRIB(dev) (&(dev)->se_sub_dev->se_dev_attrib) #define DEV_T10_WWN(dev) (&(dev)->se_sub_dev->t10_wwn) @@ -832,7 +832,7 @@ struct se_hba { struct se_subsystem_api *transport; } ____cacheline_aligned; -#define SE_HBA(d) ((struct se_hba *)(d)->se_hba) +#define SE_HBA(dev) ((dev)->se_hba) struct se_lun { /* See transport_lun_status_table */ @@ -852,7 +852,7 @@ struct se_lun { struct se_port *lun_sep; } ____cacheline_aligned; -#define SE_LUN(c) ((struct se_lun *)(c)->se_lun) +#define SE_LUN(cmd) ((cmd)->se_lun) struct scsi_port_stats { u64 cmd_pdus; @@ -919,7 +919,7 @@ struct se_portal_group { struct config_group tpg_param_group; } ____cacheline_aligned; -#define TPG_TFO(se_tpg) ((struct target_core_fabric_ops *)(se_tpg)->se_tpg_tfo) +#define TPG_TFO(se_tpg) ((se_tpg)->se_tpg_tfo) struct se_wwn { struct target_fabric_configfs *wwn_tf; -- cgit v1.2.3 From 065f97161b2da30b13000b1d9f64adff7e01e270 Mon Sep 17 00:00:00 2001 From: Dan Carpenter <error27@gmail.com> Date: Mon, 14 Mar 2011 04:06:03 -0700 Subject: [SCSI] target: Convert rd_build_device_space() to use errno This patch converts rd_build_device_space() to return errno usage for failures in rd_create_virtdevice(). Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_rd.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index f36094f0596a..7837dd365a9d 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -150,7 +150,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev) if (rd_dev->rd_page_count <= 0) { printk(KERN_ERR "Illegal page count: %u for Ramdisk device\n", rd_dev->rd_page_count); - return -1; + return -EINVAL; } total_sg_needed = rd_dev->rd_page_count; @@ -160,7 +160,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev) if (!(sg_table)) { printk(KERN_ERR "Unable to allocate memory for Ramdisk" " scatterlist tables\n"); - return -1; + return -ENOMEM; } rd_dev->sg_table_array = sg_table; @@ -175,7 +175,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev) if (!(sg)) { printk(KERN_ERR "Unable to allocate scatterlist array" " for struct rd_dev\n"); - return -1; + return -ENOMEM; } sg_init_table((struct scatterlist *)&sg[0], sg_per_table); @@ -191,7 +191,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev) if (!(pg)) { printk(KERN_ERR "Unable to allocate scatterlist" " pages for struct rd_dev_sg_table\n"); - return -1; + return -ENOMEM; } sg_assign_page(&sg[j], pg); sg[j].length = PAGE_SIZE; @@ -253,15 +253,14 @@ static struct se_device *rd_create_virtdevice( struct se_dev_limits dev_limits; struct rd_dev *rd_dev = p; struct rd_host *rd_host = hba->hba_ptr; - int dev_flags = 0, ret = -EINVAL; + int dev_flags = 0, ret; char prod[16], rev[4]; memset(&dev_limits, 0, sizeof(struct se_dev_limits)); - if (rd_build_device_space(rd_dev) < 0) { - ret = -ENOMEM; + ret = rd_build_device_space(rd_dev); + if (ret < 0) goto fail; - } snprintf(prod, 16, "RAMDISK-%s", (rd_dev->rd_direct) ? "DR" : "MCP"); snprintf(rev, 4, "%s", (rd_dev->rd_direct) ? RD_DR_VERSION : -- cgit v1.2.3 From 5c6cd613196558ba50ba97268b6d225c8d2f56d6 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab@linux-iscsi.org> Date: Mon, 14 Mar 2011 04:06:04 -0700 Subject: [SCSI] target: Convert TMR REQ/RSP definitions to target namespace This patch changes include/target/target_core_tmr.h code to use target specific 'TMR_*' prefixed definitions for fabric independent SCSI Task Management Request/Request naming in include/scsi/scsi.h definitions for mainline target code. Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_transport.c | 19 +++++-------- include/target/target_core_tmr.h | 52 ++++++++++++++-------------------- 2 files changed, 29 insertions(+), 42 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 80df4056f9f1..20ab27cb3e45 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -5832,31 +5832,26 @@ int transport_generic_do_tmr(struct se_cmd *cmd) int ret; switch (tmr->function) { - case ABORT_TASK: + case TMR_ABORT_TASK: ref_cmd = tmr->ref_cmd; tmr->response = TMR_FUNCTION_REJECTED; break; - case ABORT_TASK_SET: - case CLEAR_ACA: - case CLEAR_TASK_SET: + case TMR_ABORT_TASK_SET: + case TMR_CLEAR_ACA: + case TMR_CLEAR_TASK_SET: tmr->response = TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED; break; - case LUN_RESET: + case TMR_LUN_RESET: ret = core_tmr_lun_reset(dev, tmr, NULL, NULL); tmr->response = (!ret) ? TMR_FUNCTION_COMPLETE : TMR_FUNCTION_REJECTED; break; -#if 0 - case TARGET_WARM_RESET: - transport_generic_host_reset(dev->se_hba); + case TMR_TARGET_WARM_RESET: tmr->response = TMR_FUNCTION_REJECTED; break; - case TARGET_COLD_RESET: - transport_generic_host_reset(dev->se_hba); - transport_generic_cold_reset(dev->se_hba); + case TMR_TARGET_COLD_RESET: tmr->response = TMR_FUNCTION_REJECTED; break; -#endif default: printk(KERN_ERR "Uknown TMR function: 0x%02x.\n", tmr->function); diff --git a/include/target/target_core_tmr.h b/include/target/target_core_tmr.h index 6c8248bc2c66..bd5596807478 100644 --- a/include/target/target_core_tmr.h +++ b/include/target/target_core_tmr.h @@ -1,37 +1,29 @@ #ifndef TARGET_CORE_TMR_H #define TARGET_CORE_TMR_H -/* task management function values */ -#ifdef ABORT_TASK -#undef ABORT_TASK -#endif /* ABORT_TASK */ -#define ABORT_TASK 1 -#ifdef ABORT_TASK_SET -#undef ABORT_TASK_SET -#endif /* ABORT_TASK_SET */ -#define ABORT_TASK_SET 2 -#ifdef CLEAR_ACA -#undef CLEAR_ACA -#endif /* CLEAR_ACA */ -#define CLEAR_ACA 3 -#ifdef CLEAR_TASK_SET -#undef CLEAR_TASK_SET -#endif /* CLEAR_TASK_SET */ -#define CLEAR_TASK_SET 4 -#define LUN_RESET 5 -#define TARGET_WARM_RESET 6 -#define TARGET_COLD_RESET 7 -#define TASK_REASSIGN 8 +/* fabric independent task management function values */ +enum tcm_tmreq_table { + TMR_ABORT_TASK = 1, + TMR_ABORT_TASK_SET = 2, + TMR_CLEAR_ACA = 3, + TMR_CLEAR_TASK_SET = 4, + TMR_LUN_RESET = 5, + TMR_TARGET_WARM_RESET = 6, + TMR_TARGET_COLD_RESET = 7, + TMR_FABRIC_TMR = 255, +}; -/* task management response values */ -#define TMR_FUNCTION_COMPLETE 0 -#define TMR_TASK_DOES_NOT_EXIST 1 -#define TMR_LUN_DOES_NOT_EXIST 2 -#define TMR_TASK_STILL_ALLEGIANT 3 -#define TMR_TASK_FAILOVER_NOT_SUPPORTED 4 -#define TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED 5 -#define TMR_FUNCTION_AUTHORIZATION_FAILED 6 -#define TMR_FUNCTION_REJECTED 255 +/* fabric independent task management response values */ +enum tcm_tmrsp_table { + TMR_FUNCTION_COMPLETE = 0, + TMR_TASK_DOES_NOT_EXIST = 1, + TMR_LUN_DOES_NOT_EXIST = 2, + TMR_TASK_STILL_ALLEGIANT = 3, + TMR_TASK_FAILOVER_NOT_SUPPORTED = 4, + TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5, + TMR_FUNCTION_AUTHORIZATION_FAILED = 6, + TMR_FUNCTION_REJECTED = 255, +}; extern struct kmem_cache *se_tmr_req_cache; -- cgit v1.2.3 From 872105689eeccbcd77377d6a29f69bba3b0cbe3b Mon Sep 17 00:00:00 2001 From: Jesper Juhl <jj@chaosbits.net> Date: Mon, 14 Mar 2011 04:06:05 -0700 Subject: [SCSI] target: Avoid mem leak and needless work in transport_generic_get_mem In drivers/target/target_core_transport.c::transport_generic_get_mem() there are a few potential memory leaks in the error paths. This patch makes sure that we free previously allocated memory when other allocations fail. It also moves some work (INIT_LIST_HEAD() and assignment to se_mem->se_len) below all the allocations so that if something fails we don't do the work at all. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_transport.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 20ab27cb3e45..67d4286cf244 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -4357,11 +4357,9 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size) printk(KERN_ERR "Unable to allocate struct se_mem\n"); goto out; } - INIT_LIST_HEAD(&se_mem->se_list); - se_mem->se_len = (length > dma_size) ? dma_size : length; /* #warning FIXME Allocate contigous pages for struct se_mem elements */ - se_mem->se_page = (struct page *) alloc_pages(GFP_KERNEL, 0); + se_mem->se_page = alloc_pages(GFP_KERNEL, 0); if (!(se_mem->se_page)) { printk(KERN_ERR "alloc_pages() failed\n"); goto out; @@ -4372,6 +4370,8 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size) printk(KERN_ERR "kmap_atomic() failed\n"); goto out; } + INIT_LIST_HEAD(&se_mem->se_list); + se_mem->se_len = (length > dma_size) ? dma_size : length; memset(buf, 0, se_mem->se_len); kunmap_atomic(buf, KM_IRQ0); @@ -4390,6 +4390,9 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size) return 0; out: + if (se_mem) + __free_pages(se_mem->se_page, 0); + kmem_cache_free(se_mem_cache, se_mem); return -1; } -- cgit v1.2.3 From 12a18bdc27f81ba9d0a08a2462a49d339fff8b2d Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab@linux-iscsi.org> Date: Mon, 14 Mar 2011 04:06:06 -0700 Subject: [SCSI] target: Fix bogus return in transport_add_device_to_core_hba failure path This patch removes a bogus conditional+return check within the failure path of transport_add_device_to_core_hba(). This breakage was introduced during the v4 conversion to remove struct se_cmd passthrough ops for INQUIRY / READ_CAPCITY during struct se_device creation and registration process. Reported-by: Julia Lawall <julia@diku.dk> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_transport.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 67d4286cf244..bf6aa8a9f1d8 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1620,7 +1620,7 @@ struct se_device *transport_add_device_to_core_hba( const char *inquiry_prod, const char *inquiry_rev) { - int ret = 0, force_pt; + int force_pt; struct se_device *dev; dev = kzalloc(sizeof(struct se_device), GFP_KERNEL); @@ -1737,9 +1737,8 @@ struct se_device *transport_add_device_to_core_hba( } scsi_dump_inquiry(dev); + return dev; out: - if (!ret) - return dev; kthread_stop(dev->process_thread); spin_lock(&hba->device_lock); -- cgit v1.2.3 From f45934e08c9640faa5d960633eaf840c29ea33a8 Mon Sep 17 00:00:00 2001 From: Fubo Chen <fubo.chen@gmail.com> Date: Mon, 14 Mar 2011 04:06:07 -0700 Subject: [SCSI] tcm_mod_builder.py: Fix generated *_drop_nodeacl() handler This patch adds the missing core_tpg_del_initiator_node_acl() call required by fabric modules for struct se_node_acl->acl_group context shutdown via target_core_fabric_configfs.c:target_fabric_nacl_base_release() -> struct target_core_fabric_ops->fabric_drop_nodeacl() for tcm_mod_builder.py generated $FABRIC_MOD_configfs.c skeleton code. Signed-off-by: Fubo Chen <fubo.chen@gmail.com> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- Documentation/target/tcm_mod_builder.py | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py index 89af6c7a7c8f..7ef9b843d529 100755 --- a/Documentation/target/tcm_mod_builder.py +++ b/Documentation/target/tcm_mod_builder.py @@ -289,6 +289,7 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "{\n" buf += " struct " + fabric_mod_name + "_nacl *nacl = container_of(se_acl,\n" buf += " struct " + fabric_mod_name + "_nacl, se_node_acl);\n" + buf += " core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);\n" buf += " kfree(nacl);\n" buf += "}\n\n" -- cgit v1.2.3 From 58c3e6477f3840df7d9b346627420bc7b246cdc8 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab@linux-iscsi.org> Date: Mon, 14 Mar 2011 04:06:08 -0700 Subject: [SCSI] target: Fix FILEIO fd_buffered_io= token typo This patch fixes a token typo for the TCM/FILEIO match_table_t used for toggling O_SYNC usage for individual struct file backend access. Reported-by: Christophe Fergeau <cfergeau@gmail.com> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 03fa40f72ef7..02f553aef43d 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -514,7 +514,7 @@ enum { static match_table_t tokens = { {Opt_fd_dev_name, "fd_dev_name=%s"}, {Opt_fd_dev_size, "fd_dev_size=%s"}, - {Opt_fd_buffered_io, "fd_buffered_id=%d"}, + {Opt_fd_buffered_io, "fd_buffered_io=%d"}, {Opt_err, NULL} }; -- cgit v1.2.3 From 54550fabfecdb71e0deb51999cca7d28bb4299ed Mon Sep 17 00:00:00 2001 From: Axel Lin <axel.lin@gmail.com> Date: Mon, 14 Mar 2011 04:06:09 -0700 Subject: [SCSI] target: Add __init/__exit annotation for target_core_[init,exit]_configfs This patch fixes the follownig section mismatch warning: WARNING: vmlinux.o(.text+0x21617a): Section mismatch in reference from the function target_core_init_configfs() to the function .init.text:rd_module_init() The function target_core_init_configfs() references the function __init rd_module_init(). This is often because target_core_init_configfs() lacks a __init annotation or the annotation of rd_module_init is wrong. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/target_core_configfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 9721ef28335c..a38fec4acceb 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -3075,7 +3075,7 @@ static struct config_item_type target_core_cit = { /* Stop functions for struct config_item_type target_core_hba_cit */ -static int target_core_init_configfs(void) +static int __init target_core_init_configfs(void) { struct config_group *target_cg, *hba_cg = NULL, *alua_cg = NULL; struct config_group *lu_gp_cg = NULL; @@ -3207,7 +3207,7 @@ out_global: return -1; } -static void target_core_exit_configfs(void) +static void __exit target_core_exit_configfs(void) { struct configfs_subsystem *subsys; struct config_group *hba_cg, *alua_cg, *lu_gp_cg; -- cgit v1.2.3 From 15fb48cc40be170423fe8ddd17666aa6175315e3 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab@linux-iscsi.org> Date: Mon, 14 Mar 2011 04:06:10 -0700 Subject: [SCSI] target: update version to v4.0.0-rc7-ml Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- include/target/target_core_base.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index b3a62e451313..79f2e0a30dc8 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -9,7 +9,7 @@ #include <net/sock.h> #include <net/tcp.h> -#define TARGET_CORE_MOD_VERSION "v4.0.0-rc6" +#define TARGET_CORE_MOD_VERSION "v4.0.0-rc7-ml" #define SHUTDOWN_SIGS (sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGABRT)) /* Used by transport_generic_allocate_iovecs() */ -- cgit v1.2.3 From 12d233842987d9972957419e427987b94f7bd7b4 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab@linux-iscsi.org> Date: Mon, 14 Mar 2011 04:06:11 -0700 Subject: [SCSI] target: add initial statistics This patch adds a target_core_mib.c statistics conversion for backend context struct se_subsystem_dev + struct se_device config_group based statistics in target_core_device.c using CONFIGFS_EATTR() based struct config_item_types from target_core_stat.c code. The conversion from backend /proc/scsi_target/mib/ context output to configfs default groups+attributes include scsi_dev, scsi_lu, and scsi_tgt_dev output from within individual: /sys/kernel/config/target/core/$HBA/DEV/ The legacy procfs output now appear as individual configfs attributes under: *) $HBA/$DEV/statistics/scsi_dev: |-- indx |-- inst |-- ports `-- role *) $HBA/$DEV/statistics/scsi_lu: |-- creation_time |-- dev |-- dev_type |-- full_stat |-- hs_num_cmds |-- indx |-- inst |-- lu_name |-- lun |-- num_cmds |-- prod |-- read_mbytes |-- resets |-- rev |-- state_bit |-- status |-- vend `-- write_mbytes *) $HBA/$DEV/statistics/scsi_tgt_dev: |-- indx |-- inst |-- non_access_lus |-- num_lus |-- resets `-- status The conversion from backend /proc/scsi_target/mib/ context output to configfs default groups+attributes include scsi_port, scsi_tgt_port and scsi_transport output from within individual: /sys/kernel/config/target/fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/ The legacy procfs output now appear as individual configfs attributes under: *) fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/scsi_port |-- busy_count |-- dev |-- indx |-- inst `-- role *) fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/scsi_tgt_port |-- dev |-- hs_in_cmds |-- in_cmds |-- indx |-- inst |-- name |-- port_index |-- read_mbytes `-- write_mbytes *) fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/scsi_transport |-- dev_name |-- device |-- indx `-- inst The conversion from backend /proc/scsi_target/mib/ context output to configfs default groups+attributes include scsi_att_intr_port and scsi_auth_intr output from within individual: /sys/kernel/config/target/fabric/$WWN/tpgt_$TPGT/acls/$INITIATOR_WWN/lun_$LUN_ID/statistics/ The legacy procfs output now appear as individual configfs attributes under: *) acls/$INITIATOR_WWN/lun_$LUN_ID/statistics/scsi_att_intr_port |-- dev |-- indx |-- inst |-- port |-- port_auth_indx `-- port_ident *) acls/$INITIATOR_WWN/lun_$LUN_ID/statistics/scsi_auth_intr |-- att_count |-- creation_time |-- dev |-- dev_or_port |-- hs_num_cmds |-- indx |-- inst |-- intr_name |-- map_indx |-- num_cmds |-- port |-- read_mbytes |-- row_status `-- write_mbytes Also, this includes adding struct target_fabric_configfs_template-> tfc_wwn_fabric_stats_cit and ->tfc_tpg_nacl_stat_cit respectively for use during target_core_fabric_configfs.c:target_fabric_setup_cits() Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/Makefile | 3 +- drivers/target/target_core_configfs.c | 76 +- drivers/target/target_core_fabric_configfs.c | 209 ++- drivers/target/target_core_stat.c | 1810 ++++++++++++++++++++++++++ drivers/target/target_core_stat.h | 8 + include/target/target_core_base.h | 35 +- include/target/target_core_configfs.h | 4 + 7 files changed, 2127 insertions(+), 18 deletions(-) create mode 100644 drivers/target/target_core_stat.c create mode 100644 drivers/target/target_core_stat.h diff --git a/drivers/target/Makefile b/drivers/target/Makefile index 050ee6569b2b..4f3cb788f06a 100644 --- a/drivers/target/Makefile +++ b/drivers/target/Makefile @@ -12,7 +12,8 @@ target_core_mod-y := target_core_configfs.o \ target_core_transport.o \ target_core_cdb.o \ target_core_ua.o \ - target_core_rd.o + target_core_rd.o \ + target_core_stat.o obj-$(CONFIG_TARGET_CORE) += target_core_mod.o diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index a38fec4acceb..a5f44a6e6e1d 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -3,8 +3,8 @@ * * This file contains ConfigFS logic for the Generic Target Engine project. * - * Copyright (c) 2008-2010 Rising Tide Systems - * Copyright (c) 2008-2010 Linux-iSCSI.org + * Copyright (c) 2008-2011 Rising Tide Systems + * Copyright (c) 2008-2011 Linux-iSCSI.org * * Nicholas A. Bellinger <nab@kernel.org> * @@ -50,6 +50,7 @@ #include "target_core_hba.h" #include "target_core_pr.h" #include "target_core_rd.h" +#include "target_core_stat.h" static struct list_head g_tf_list; static struct mutex g_tf_lock; @@ -2709,6 +2710,34 @@ static struct config_item_type target_core_alua_cit = { /* End functions for struct config_item_type target_core_alua_cit */ +/* Start functions for struct config_item_type target_core_stat_cit */ + +static struct config_group *target_core_stat_mkdir( + struct config_group *group, + const char *name) +{ + return ERR_PTR(-ENOSYS); +} + +static void target_core_stat_rmdir( + struct config_group *group, + struct config_item *item) +{ + return; +} + +static struct configfs_group_operations target_core_stat_group_ops = { + .make_group = &target_core_stat_mkdir, + .drop_item = &target_core_stat_rmdir, +}; + +static struct config_item_type target_core_stat_cit = { + .ct_group_ops = &target_core_stat_group_ops, + .ct_owner = THIS_MODULE, +}; + +/* End functions for struct config_item_type target_core_stat_cit */ + /* Start functions for struct config_item_type target_core_hba_cit */ static struct config_group *target_core_make_subdev( @@ -2721,10 +2750,12 @@ static struct config_group *target_core_make_subdev( struct config_item *hba_ci = &group->cg_item; struct se_hba *hba = item_to_hba(hba_ci); struct config_group *dev_cg = NULL, *tg_pt_gp_cg = NULL; + struct config_group *dev_stat_grp = NULL; + int errno = -ENOMEM, ret; - if (mutex_lock_interruptible(&hba->hba_access_mutex)) - return NULL; - + ret = mutex_lock_interruptible(&hba->hba_access_mutex); + if (ret) + return ERR_PTR(ret); /* * Locate the struct se_subsystem_api from parent's struct se_hba. */ @@ -2754,7 +2785,7 @@ static struct config_group *target_core_make_subdev( se_dev->se_dev_hba = hba; dev_cg = &se_dev->se_dev_group; - dev_cg->default_groups = kzalloc(sizeof(struct config_group) * 6, + dev_cg->default_groups = kzalloc(sizeof(struct config_group) * 7, GFP_KERNEL); if (!(dev_cg->default_groups)) goto out; @@ -2786,13 +2817,17 @@ static struct config_group *target_core_make_subdev( &target_core_dev_wwn_cit); config_group_init_type_name(&se_dev->t10_alua.alua_tg_pt_gps_group, "alua", &target_core_alua_tg_pt_gps_cit); + config_group_init_type_name(&se_dev->dev_stat_grps.stat_group, + "statistics", &target_core_stat_cit); + dev_cg->default_groups[0] = &se_dev->se_dev_attrib.da_group; dev_cg->default_groups[1] = &se_dev->se_dev_pr_group; dev_cg->default_groups[2] = &se_dev->t10_wwn.t10_wwn_group; dev_cg->default_groups[3] = &se_dev->t10_alua.alua_tg_pt_gps_group; - dev_cg->default_groups[4] = NULL; + dev_cg->default_groups[4] = &se_dev->dev_stat_grps.stat_group; + dev_cg->default_groups[5] = NULL; /* - * Add core/$HBA/$DEV/alua/tg_pt_gps/default_tg_pt_gp + * Add core/$HBA/$DEV/alua/default_tg_pt_gp */ tg_pt_gp = core_alua_allocate_tg_pt_gp(se_dev, "default_tg_pt_gp", 1); if (!(tg_pt_gp)) @@ -2812,6 +2847,17 @@ static struct config_group *target_core_make_subdev( tg_pt_gp_cg->default_groups[0] = &tg_pt_gp->tg_pt_gp_group; tg_pt_gp_cg->default_groups[1] = NULL; T10_ALUA(se_dev)->default_tg_pt_gp = tg_pt_gp; + /* + * Add core/$HBA/$DEV/statistics/ default groups + */ + dev_stat_grp = &DEV_STAT_GRP(se_dev)->stat_group; + dev_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 4, + GFP_KERNEL); + if (!dev_stat_grp->default_groups) { + printk(KERN_ERR "Unable to allocate dev_stat_grp->default_groups\n"); + goto out; + } + target_stat_setup_dev_default_groups(se_dev); printk(KERN_INFO "Target_Core_ConfigFS: Allocated struct se_subsystem_dev:" " %p se_dev_su_ptr: %p\n", se_dev, se_dev->se_dev_su_ptr); @@ -2823,6 +2869,8 @@ out: core_alua_free_tg_pt_gp(T10_ALUA(se_dev)->default_tg_pt_gp); T10_ALUA(se_dev)->default_tg_pt_gp = NULL; } + if (dev_stat_grp) + kfree(dev_stat_grp->default_groups); if (tg_pt_gp_cg) kfree(tg_pt_gp_cg->default_groups); if (dev_cg) @@ -2832,7 +2880,7 @@ out: kfree(se_dev); unlock: mutex_unlock(&hba->hba_access_mutex); - return NULL; + return ERR_PTR(errno); } static void target_core_drop_subdev( @@ -2844,7 +2892,7 @@ static void target_core_drop_subdev( struct se_hba *hba; struct se_subsystem_api *t; struct config_item *df_item; - struct config_group *dev_cg, *tg_pt_gp_cg; + struct config_group *dev_cg, *tg_pt_gp_cg, *dev_stat_grp; int i; hba = item_to_hba(&se_dev->se_dev_hba->hba_group.cg_item); @@ -2856,6 +2904,14 @@ static void target_core_drop_subdev( list_del(&se_dev->g_se_dev_list); spin_unlock(&se_global->g_device_lock); + dev_stat_grp = &DEV_STAT_GRP(se_dev)->stat_group; + for (i = 0; dev_stat_grp->default_groups[i]; i++) { + df_item = &dev_stat_grp->default_groups[i]->cg_item; + dev_stat_grp->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(dev_stat_grp->default_groups); + tg_pt_gp_cg = &T10_ALUA(se_dev)->alua_tg_pt_gps_group; for (i = 0; tg_pt_gp_cg->default_groups[i]; i++) { df_item = &tg_pt_gp_cg->default_groups[i]->cg_item; diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index b65d1c8e7740..07ab5a3bb8e8 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -4,10 +4,10 @@ * This file contains generic fabric module configfs infrastructure for * TCM v4.x code * - * Copyright (c) 2010 Rising Tide Systems - * Copyright (c) 2010 Linux-iSCSI.org + * Copyright (c) 2010,2011 Rising Tide Systems + * Copyright (c) 2010,2011 Linux-iSCSI.org * - * Copyright (c) 2010 Nicholas A. Bellinger <nab@linux-iscsi.org> + * Copyright (c) Nicholas A. Bellinger <nab@linux-iscsi.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -48,6 +48,7 @@ #include "target_core_alua.h" #include "target_core_hba.h" #include "target_core_pr.h" +#include "target_core_stat.h" #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ @@ -241,6 +242,32 @@ TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, /* End of tfc_tpg_mappedlun_cit */ +/* Start of tfc_tpg_mappedlun_port_cit */ + +static struct config_group *target_core_mappedlun_stat_mkdir( + struct config_group *group, + const char *name) +{ + return ERR_PTR(-ENOSYS); +} + +static void target_core_mappedlun_stat_rmdir( + struct config_group *group, + struct config_item *item) +{ + return; +} + +static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { + .make_group = target_core_mappedlun_stat_mkdir, + .drop_item = target_core_mappedlun_stat_rmdir, +}; + +TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, + NULL); + +/* End of tfc_tpg_mappedlun_port_cit */ + /* Start of tfc_tpg_nacl_attrib_cit */ CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); @@ -294,6 +321,7 @@ static struct config_group *target_fabric_make_mappedlun( struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; struct se_lun_acl *lacl; struct config_item *acl_ci; + struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; char *buf; unsigned long mapped_lun; int ret = 0; @@ -330,15 +358,42 @@ static struct config_group *target_fabric_make_mappedlun( lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun, config_item_name(acl_ci), &ret); - if (!(lacl)) + if (!(lacl)) { + ret = -EINVAL; goto out; + } + + lacl_cg = &lacl->se_lun_group; + lacl_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, + GFP_KERNEL); + if (!lacl_cg->default_groups) { + printk(KERN_ERR "Unable to allocate lacl_cg->default_groups\n"); + ret = -ENOMEM; + goto out; + } config_group_init_type_name(&lacl->se_lun_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit); + config_group_init_type_name(&lacl->ml_stat_grps.stat_group, + "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit); + lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; + lacl_cg->default_groups[1] = NULL; + + ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group; + ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, + GFP_KERNEL); + if (!ml_stat_grp->default_groups) { + printk(KERN_ERR "Unable to allocate ml_stat_grp->default_groups\n"); + ret = -ENOMEM; + goto out; + } + target_stat_setup_mappedlun_default_groups(lacl); kfree(buf); return &lacl->se_lun_group; out: + if (lacl_cg) + kfree(lacl_cg->default_groups); kfree(buf); return ERR_PTR(ret); } @@ -347,6 +402,28 @@ static void target_fabric_drop_mappedlun( struct config_group *group, struct config_item *item) { + struct se_lun_acl *lacl = container_of(to_config_group(item), + struct se_lun_acl, se_lun_group); + struct config_item *df_item; + struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; + int i; + + ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group; + for (i = 0; ml_stat_grp->default_groups[i]; i++) { + df_item = &ml_stat_grp->default_groups[i]->cg_item; + ml_stat_grp->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(ml_stat_grp->default_groups); + + lacl_cg = &lacl->se_lun_group; + for (i = 0; lacl_cg->default_groups[i]; i++) { + df_item = &lacl_cg->default_groups[i]->cg_item; + lacl_cg->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(lacl_cg->default_groups); + config_item_put(item); } @@ -376,6 +453,15 @@ TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops, /* End of tfc_tpg_nacl_base_cit */ +/* Start of tfc_node_fabric_stats_cit */ +/* + * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group + * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] + */ +TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); + +/* End of tfc_wwn_fabric_stats_cit */ + /* Start of tfc_tpg_nacl_cit */ static struct config_group *target_fabric_make_nodeacl( @@ -402,7 +488,8 @@ static struct config_group *target_fabric_make_nodeacl( nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; nacl_cg->default_groups[2] = &se_nacl->acl_param_group; - nacl_cg->default_groups[3] = NULL; + nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; + nacl_cg->default_groups[4] = NULL; config_group_init_type_name(&se_nacl->acl_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit); @@ -412,6 +499,9 @@ static struct config_group *target_fabric_make_nodeacl( &TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit); config_group_init_type_name(&se_nacl->acl_param_group, "param", &TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit); + config_group_init_type_name(&se_nacl->acl_fabric_stat_group, + "fabric_statistics", + &TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit); return &se_nacl->acl_group; } @@ -758,6 +848,31 @@ TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_at /* End of tfc_tpg_port_cit */ +/* Start of tfc_tpg_port_stat_cit */ + +static struct config_group *target_core_port_stat_mkdir( + struct config_group *group, + const char *name) +{ + return ERR_PTR(-ENOSYS); +} + +static void target_core_port_stat_rmdir( + struct config_group *group, + struct config_item *item) +{ + return; +} + +static struct configfs_group_operations target_fabric_port_stat_group_ops = { + .make_group = target_core_port_stat_mkdir, + .drop_item = target_core_port_stat_rmdir, +}; + +TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); + +/* End of tfc_tpg_port_stat_cit */ + /* Start of tfc_tpg_lun_cit */ static struct config_group *target_fabric_make_lun( @@ -768,7 +883,9 @@ static struct config_group *target_fabric_make_lun( struct se_portal_group *se_tpg = container_of(group, struct se_portal_group, tpg_lun_group); struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; + struct config_group *lun_cg = NULL, *port_stat_grp = NULL; unsigned long unpacked_lun; + int errno; if (strstr(name, "lun_") != name) { printk(KERN_ERR "Unable to locate \'_\" in" @@ -782,16 +899,64 @@ static struct config_group *target_fabric_make_lun( if (!(lun)) return ERR_PTR(-EINVAL); + lun_cg = &lun->lun_group; + lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, + GFP_KERNEL); + if (!lun_cg->default_groups) { + printk(KERN_ERR "Unable to allocate lun_cg->default_groups\n"); + return ERR_PTR(-ENOMEM); + } + config_group_init_type_name(&lun->lun_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_port_cit); + config_group_init_type_name(&lun->port_stat_grps.stat_group, + "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit); + lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; + lun_cg->default_groups[1] = NULL; + + port_stat_grp = &PORT_STAT_GRP(lun)->stat_group; + port_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, + GFP_KERNEL); + if (!port_stat_grp->default_groups) { + printk(KERN_ERR "Unable to allocate port_stat_grp->default_groups\n"); + errno = -ENOMEM; + goto out; + } + target_stat_setup_port_default_groups(lun); return &lun->lun_group; +out: + if (lun_cg) + kfree(lun_cg->default_groups); + return ERR_PTR(errno); } static void target_fabric_drop_lun( struct config_group *group, struct config_item *item) { + struct se_lun *lun = container_of(to_config_group(item), + struct se_lun, lun_group); + struct config_item *df_item; + struct config_group *lun_cg, *port_stat_grp; + int i; + + port_stat_grp = &PORT_STAT_GRP(lun)->stat_group; + for (i = 0; port_stat_grp->default_groups[i]; i++) { + df_item = &port_stat_grp->default_groups[i]->cg_item; + port_stat_grp->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(port_stat_grp->default_groups); + + lun_cg = &lun->lun_group; + for (i = 0; lun_cg->default_groups[i]; i++) { + df_item = &lun_cg->default_groups[i]->cg_item; + lun_cg->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(lun_cg->default_groups); + config_item_put(item); } @@ -946,6 +1111,15 @@ TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, /* End of tfc_tpg_cit */ +/* Start of tfc_wwn_fabric_stats_cit */ +/* + * This is used as a placeholder for struct se_wwn->fabric_stat_group + * to allow fabrics access to ->fabric_stat_group->default_groups[] + */ +TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); + +/* End of tfc_wwn_fabric_stats_cit */ + /* Start of tfc_wwn_cit */ static struct config_group *target_fabric_make_wwn( @@ -966,8 +1140,17 @@ static struct config_group *target_fabric_make_wwn( return ERR_PTR(-EINVAL); wwn->wwn_tf = tf; + /* + * Setup default groups from pre-allocated wwn->wwn_default_groups + */ + wwn->wwn_group.default_groups = wwn->wwn_default_groups; + wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; + wwn->wwn_group.default_groups[1] = NULL; + config_group_init_type_name(&wwn->wwn_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_cit); + config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", + &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit); return &wwn->wwn_group; } @@ -976,6 +1159,18 @@ static void target_fabric_drop_wwn( struct config_group *group, struct config_item *item) { + struct se_wwn *wwn = container_of(to_config_group(item), + struct se_wwn, wwn_group); + struct config_item *df_item; + struct config_group *cg = &wwn->wwn_group; + int i; + + for (i = 0; cg->default_groups[i]; i++) { + df_item = &cg->default_groups[i]->cg_item; + cg->default_groups[i] = NULL; + config_item_put(df_item); + } + config_item_put(item); } @@ -1015,9 +1210,11 @@ int target_fabric_setup_cits(struct target_fabric_configfs *tf) { target_fabric_setup_discovery_cit(tf); target_fabric_setup_wwn_cit(tf); + target_fabric_setup_wwn_fabric_stats_cit(tf); target_fabric_setup_tpg_cit(tf); target_fabric_setup_tpg_base_cit(tf); target_fabric_setup_tpg_port_cit(tf); + target_fabric_setup_tpg_port_stat_cit(tf); target_fabric_setup_tpg_lun_cit(tf); target_fabric_setup_tpg_np_cit(tf); target_fabric_setup_tpg_np_base_cit(tf); @@ -1028,7 +1225,9 @@ int target_fabric_setup_cits(struct target_fabric_configfs *tf) target_fabric_setup_tpg_nacl_attrib_cit(tf); target_fabric_setup_tpg_nacl_auth_cit(tf); target_fabric_setup_tpg_nacl_param_cit(tf); + target_fabric_setup_tpg_nacl_stat_cit(tf); target_fabric_setup_tpg_mappedlun_cit(tf); + target_fabric_setup_tpg_mappedlun_stat_cit(tf); return 0; } diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c new file mode 100644 index 000000000000..5e3a067a7475 --- /dev/null +++ b/drivers/target/target_core_stat.c @@ -0,0 +1,1810 @@ +/******************************************************************************* + * Filename: target_core_stat.c + * + * Copyright (c) 2011 Rising Tide Systems + * Copyright (c) 2011 Linux-iSCSI.org + * + * Modern ConfigFS group context specific statistics based on original + * target_core_mib.c code + * + * Copyright (c) 2006-2007 SBE, Inc. All Rights Reserved. + * + * Nicholas A. Bellinger <nab@linux-iscsi.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + ******************************************************************************/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/timer.h> +#include <linux/string.h> +#include <linux/version.h> +#include <generated/utsrelease.h> +#include <linux/utsname.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/blkdev.h> +#include <linux/configfs.h> +#include <scsi/scsi.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> + +#include <target/target_core_base.h> +#include <target/target_core_transport.h> +#include <target/target_core_fabric_ops.h> +#include <target/target_core_configfs.h> +#include <target/configfs_macros.h> + +#include "target_core_hba.h" + +#ifndef INITIAL_JIFFIES +#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ)) +#endif + +#define NONE "None" +#define ISPRINT(a) ((a >= ' ') && (a <= '~')) + +#define SCSI_LU_INDEX 1 +#define LU_COUNT 1 + +/* + * SCSI Device Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_dev, se_dev_stat_grps); +#define DEV_STAT_SCSI_DEV_ATTR(_name, _mode) \ +static struct target_stat_scsi_dev_attribute \ + target_stat_scsi_dev_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_dev_show_attr_##_name, \ + target_stat_scsi_dev_store_attr_##_name); + +#define DEV_STAT_SCSI_DEV_ATTR_RO(_name) \ +static struct target_stat_scsi_dev_attribute \ + target_stat_scsi_dev_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_dev_show_attr_##_name); + +static ssize_t target_stat_scsi_dev_show_attr_inst( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_hba *hba = se_subdev->se_dev_hba; + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); +} +DEV_STAT_SCSI_DEV_ATTR_RO(inst); + +static ssize_t target_stat_scsi_dev_show_attr_indx( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); +} +DEV_STAT_SCSI_DEV_ATTR_RO(indx); + +static ssize_t target_stat_scsi_dev_show_attr_role( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "Target\n"); +} +DEV_STAT_SCSI_DEV_ATTR_RO(role); + +static ssize_t target_stat_scsi_dev_show_attr_ports( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_port_count); +} +DEV_STAT_SCSI_DEV_ATTR_RO(ports); + +CONFIGFS_EATTR_OPS(target_stat_scsi_dev, se_dev_stat_grps, scsi_dev_group); + +static struct configfs_attribute *target_stat_scsi_dev_attrs[] = { + &target_stat_scsi_dev_inst.attr, + &target_stat_scsi_dev_indx.attr, + &target_stat_scsi_dev_role.attr, + &target_stat_scsi_dev_ports.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_dev_attrib_ops = { + .show_attribute = target_stat_scsi_dev_attr_show, + .store_attribute = target_stat_scsi_dev_attr_store, +}; + +static struct config_item_type target_stat_scsi_dev_cit = { + .ct_item_ops = &target_stat_scsi_dev_attrib_ops, + .ct_attrs = target_stat_scsi_dev_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Target Device Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_dev, se_dev_stat_grps); +#define DEV_STAT_SCSI_TGT_DEV_ATTR(_name, _mode) \ +static struct target_stat_scsi_tgt_dev_attribute \ + target_stat_scsi_tgt_dev_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_tgt_dev_show_attr_##_name, \ + target_stat_scsi_tgt_dev_store_attr_##_name); + +#define DEV_STAT_SCSI_TGT_DEV_ATTR_RO(_name) \ +static struct target_stat_scsi_tgt_dev_attribute \ + target_stat_scsi_tgt_dev_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_tgt_dev_show_attr_##_name); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_inst( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_hba *hba = se_subdev->se_dev_hba; + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(inst); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_indx( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(indx); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_num_lus( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", LU_COUNT); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(num_lus); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_status( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + char status[16]; + + if (!dev) + return -ENODEV; + + switch (dev->dev_status) { + case TRANSPORT_DEVICE_ACTIVATED: + strcpy(status, "activated"); + break; + case TRANSPORT_DEVICE_DEACTIVATED: + strcpy(status, "deactivated"); + break; + case TRANSPORT_DEVICE_SHUTDOWN: + strcpy(status, "shutdown"); + break; + case TRANSPORT_DEVICE_OFFLINE_ACTIVATED: + case TRANSPORT_DEVICE_OFFLINE_DEACTIVATED: + strcpy(status, "offline"); + break; + default: + sprintf(status, "unknown(%d)", dev->dev_status); + break; + } + + return snprintf(page, PAGE_SIZE, "%s\n", status); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(status); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_non_access_lus( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + int non_accessible_lus; + + if (!dev) + return -ENODEV; + + switch (dev->dev_status) { + case TRANSPORT_DEVICE_ACTIVATED: + non_accessible_lus = 0; + break; + case TRANSPORT_DEVICE_DEACTIVATED: + case TRANSPORT_DEVICE_SHUTDOWN: + case TRANSPORT_DEVICE_OFFLINE_ACTIVATED: + case TRANSPORT_DEVICE_OFFLINE_DEACTIVATED: + default: + non_accessible_lus = 1; + break; + } + + return snprintf(page, PAGE_SIZE, "%u\n", non_accessible_lus); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(non_access_lus); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_resets( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(resets); + + +CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_dev, se_dev_stat_grps, scsi_tgt_dev_group); + +static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = { + &target_stat_scsi_tgt_dev_inst.attr, + &target_stat_scsi_tgt_dev_indx.attr, + &target_stat_scsi_tgt_dev_num_lus.attr, + &target_stat_scsi_tgt_dev_status.attr, + &target_stat_scsi_tgt_dev_non_access_lus.attr, + &target_stat_scsi_tgt_dev_resets.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_tgt_dev_attrib_ops = { + .show_attribute = target_stat_scsi_tgt_dev_attr_show, + .store_attribute = target_stat_scsi_tgt_dev_attr_store, +}; + +static struct config_item_type target_stat_scsi_tgt_dev_cit = { + .ct_item_ops = &target_stat_scsi_tgt_dev_attrib_ops, + .ct_attrs = target_stat_scsi_tgt_dev_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Logical Unit Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_lu, se_dev_stat_grps); +#define DEV_STAT_SCSI_LU_ATTR(_name, _mode) \ +static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_lu_show_attr_##_name, \ + target_stat_scsi_lu_store_attr_##_name); + +#define DEV_STAT_SCSI_LU_ATTR_RO(_name) \ +static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_lu_show_attr_##_name); + +static ssize_t target_stat_scsi_lu_show_attr_inst( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_hba *hba = se_subdev->se_dev_hba; + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); +} +DEV_STAT_SCSI_LU_ATTR_RO(inst); + +static ssize_t target_stat_scsi_lu_show_attr_dev( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); +} +DEV_STAT_SCSI_LU_ATTR_RO(dev); + +static ssize_t target_stat_scsi_lu_show_attr_indx( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", SCSI_LU_INDEX); +} +DEV_STAT_SCSI_LU_ATTR_RO(indx); + +static ssize_t target_stat_scsi_lu_show_attr_lun( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + /* FIXME: scsiLuDefaultLun */ + return snprintf(page, PAGE_SIZE, "%llu\n", (unsigned long long)0); +} +DEV_STAT_SCSI_LU_ATTR_RO(lun); + +static ssize_t target_stat_scsi_lu_show_attr_lu_name( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + /* scsiLuWwnName */ + return snprintf(page, PAGE_SIZE, "%s\n", + (strlen(DEV_T10_WWN(dev)->unit_serial)) ? + (char *)&DEV_T10_WWN(dev)->unit_serial[0] : "None"); +} +DEV_STAT_SCSI_LU_ATTR_RO(lu_name); + +static ssize_t target_stat_scsi_lu_show_attr_vend( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + int j; + char str[28]; + + if (!dev) + return -ENODEV; + /* scsiLuVendorId */ + memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28); + for (j = 0; j < 8; j++) + str[j] = ISPRINT(DEV_T10_WWN(dev)->vendor[j]) ? + DEV_T10_WWN(dev)->vendor[j] : 0x20; + str[8] = 0; + return snprintf(page, PAGE_SIZE, "%s\n", str); +} +DEV_STAT_SCSI_LU_ATTR_RO(vend); + +static ssize_t target_stat_scsi_lu_show_attr_prod( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + int j; + char str[28]; + + if (!dev) + return -ENODEV; + + /* scsiLuProductId */ + memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28); + for (j = 0; j < 16; j++) + str[j] = ISPRINT(DEV_T10_WWN(dev)->model[j]) ? + DEV_T10_WWN(dev)->model[j] : 0x20; + str[16] = 0; + return snprintf(page, PAGE_SIZE, "%s\n", str); +} +DEV_STAT_SCSI_LU_ATTR_RO(prod); + +static ssize_t target_stat_scsi_lu_show_attr_rev( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + int j; + char str[28]; + + if (!dev) + return -ENODEV; + + /* scsiLuRevisionId */ + memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28); + for (j = 0; j < 4; j++) + str[j] = ISPRINT(DEV_T10_WWN(dev)->revision[j]) ? + DEV_T10_WWN(dev)->revision[j] : 0x20; + str[4] = 0; + return snprintf(page, PAGE_SIZE, "%s\n", str); +} +DEV_STAT_SCSI_LU_ATTR_RO(rev); + +static ssize_t target_stat_scsi_lu_show_attr_dev_type( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuPeripheralType */ + return snprintf(page, PAGE_SIZE, "%u\n", + TRANSPORT(dev)->get_device_type(dev)); +} +DEV_STAT_SCSI_LU_ATTR_RO(dev_type); + +static ssize_t target_stat_scsi_lu_show_attr_status( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuStatus */ + return snprintf(page, PAGE_SIZE, "%s\n", + (dev->dev_status == TRANSPORT_DEVICE_ACTIVATED) ? + "available" : "notavailable"); +} +DEV_STAT_SCSI_LU_ATTR_RO(status); + +static ssize_t target_stat_scsi_lu_show_attr_state_bit( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuState */ + return snprintf(page, PAGE_SIZE, "exposed\n"); +} +DEV_STAT_SCSI_LU_ATTR_RO(state_bit); + +static ssize_t target_stat_scsi_lu_show_attr_num_cmds( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuNumCommands */ + return snprintf(page, PAGE_SIZE, "%llu\n", + (unsigned long long)dev->num_cmds); +} +DEV_STAT_SCSI_LU_ATTR_RO(num_cmds); + +static ssize_t target_stat_scsi_lu_show_attr_read_mbytes( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuReadMegaBytes */ + return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->read_bytes >> 20)); +} +DEV_STAT_SCSI_LU_ATTR_RO(read_mbytes); + +static ssize_t target_stat_scsi_lu_show_attr_write_mbytes( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuWrittenMegaBytes */ + return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->write_bytes >> 20)); +} +DEV_STAT_SCSI_LU_ATTR_RO(write_mbytes); + +static ssize_t target_stat_scsi_lu_show_attr_resets( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuInResets */ + return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets); +} +DEV_STAT_SCSI_LU_ATTR_RO(resets); + +static ssize_t target_stat_scsi_lu_show_attr_full_stat( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* FIXME: scsiLuOutTaskSetFullStatus */ + return snprintf(page, PAGE_SIZE, "%u\n", 0); +} +DEV_STAT_SCSI_LU_ATTR_RO(full_stat); + +static ssize_t target_stat_scsi_lu_show_attr_hs_num_cmds( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* FIXME: scsiLuHSInCommands */ + return snprintf(page, PAGE_SIZE, "%u\n", 0); +} +DEV_STAT_SCSI_LU_ATTR_RO(hs_num_cmds); + +static ssize_t target_stat_scsi_lu_show_attr_creation_time( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuCreationTime */ + return snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)dev->creation_time - + INITIAL_JIFFIES) * 100 / HZ)); +} +DEV_STAT_SCSI_LU_ATTR_RO(creation_time); + +CONFIGFS_EATTR_OPS(target_stat_scsi_lu, se_dev_stat_grps, scsi_lu_group); + +static struct configfs_attribute *target_stat_scsi_lu_attrs[] = { + &target_stat_scsi_lu_inst.attr, + &target_stat_scsi_lu_dev.attr, + &target_stat_scsi_lu_indx.attr, + &target_stat_scsi_lu_lun.attr, + &target_stat_scsi_lu_lu_name.attr, + &target_stat_scsi_lu_vend.attr, + &target_stat_scsi_lu_prod.attr, + &target_stat_scsi_lu_rev.attr, + &target_stat_scsi_lu_dev_type.attr, + &target_stat_scsi_lu_status.attr, + &target_stat_scsi_lu_state_bit.attr, + &target_stat_scsi_lu_num_cmds.attr, + &target_stat_scsi_lu_read_mbytes.attr, + &target_stat_scsi_lu_write_mbytes.attr, + &target_stat_scsi_lu_resets.attr, + &target_stat_scsi_lu_full_stat.attr, + &target_stat_scsi_lu_hs_num_cmds.attr, + &target_stat_scsi_lu_creation_time.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_lu_attrib_ops = { + .show_attribute = target_stat_scsi_lu_attr_show, + .store_attribute = target_stat_scsi_lu_attr_store, +}; + +static struct config_item_type target_stat_scsi_lu_cit = { + .ct_item_ops = &target_stat_scsi_lu_attrib_ops, + .ct_attrs = target_stat_scsi_lu_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * Called from target_core_configfs.c:target_core_make_subdev() to setup + * the target statistics groups + configfs CITs located in target_core_stat.c + */ +void target_stat_setup_dev_default_groups(struct se_subsystem_dev *se_subdev) +{ + struct config_group *dev_stat_grp = &DEV_STAT_GRP(se_subdev)->stat_group; + + config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_dev_group, + "scsi_dev", &target_stat_scsi_dev_cit); + config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_tgt_dev_group, + "scsi_tgt_dev", &target_stat_scsi_tgt_dev_cit); + config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_lu_group, + "scsi_lu", &target_stat_scsi_lu_cit); + + dev_stat_grp->default_groups[0] = &DEV_STAT_GRP(se_subdev)->scsi_dev_group; + dev_stat_grp->default_groups[1] = &DEV_STAT_GRP(se_subdev)->scsi_tgt_dev_group; + dev_stat_grp->default_groups[2] = &DEV_STAT_GRP(se_subdev)->scsi_lu_group; + dev_stat_grp->default_groups[3] = NULL; +} + +/* + * SCSI Port Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_port, se_port_stat_grps); +#define DEV_STAT_SCSI_PORT_ATTR(_name, _mode) \ +static struct target_stat_scsi_port_attribute \ + target_stat_scsi_port_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_port_show_attr_##_name, \ + target_stat_scsi_port_store_attr_##_name); + +#define DEV_STAT_SCSI_PORT_ATTR_RO(_name) \ +static struct target_stat_scsi_port_attribute \ + target_stat_scsi_port_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_port_show_attr_##_name); + +static ssize_t target_stat_scsi_port_show_attr_inst( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_device *dev = lun->lun_se_dev; + struct se_hba *hba; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + hba = dev->se_hba; + ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(inst); + +static ssize_t target_stat_scsi_port_show_attr_dev( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_device *dev = lun->lun_se_dev; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(dev); + +static ssize_t target_stat_scsi_port_show_attr_indx( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(indx); + +static ssize_t target_stat_scsi_port_show_attr_role( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + ssize_t ret; + + if (!dev) + return -ENODEV; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(role); + +static ssize_t target_stat_scsi_port_show_attr_busy_count( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + /* FIXME: scsiPortBusyStatuses */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(busy_count); + +CONFIGFS_EATTR_OPS(target_stat_scsi_port, se_port_stat_grps, scsi_port_group); + +static struct configfs_attribute *target_stat_scsi_port_attrs[] = { + &target_stat_scsi_port_inst.attr, + &target_stat_scsi_port_dev.attr, + &target_stat_scsi_port_indx.attr, + &target_stat_scsi_port_role.attr, + &target_stat_scsi_port_busy_count.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_port_attrib_ops = { + .show_attribute = target_stat_scsi_port_attr_show, + .store_attribute = target_stat_scsi_port_attr_store, +}; + +static struct config_item_type target_stat_scsi_port_cit = { + .ct_item_ops = &target_stat_scsi_port_attrib_ops, + .ct_attrs = target_stat_scsi_port_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Target Port Table + */ +CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_port, se_port_stat_grps); +#define DEV_STAT_SCSI_TGT_PORT_ATTR(_name, _mode) \ +static struct target_stat_scsi_tgt_port_attribute \ + target_stat_scsi_tgt_port_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_tgt_port_show_attr_##_name, \ + target_stat_scsi_tgt_port_store_attr_##_name); + +#define DEV_STAT_SCSI_TGT_PORT_ATTR_RO(_name) \ +static struct target_stat_scsi_tgt_port_attribute \ + target_stat_scsi_tgt_port_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_tgt_port_show_attr_##_name); + +static ssize_t target_stat_scsi_tgt_port_show_attr_inst( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + struct se_hba *hba; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + hba = dev->se_hba; + ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(inst); + +static ssize_t target_stat_scsi_tgt_port_show_attr_dev( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(dev); + +static ssize_t target_stat_scsi_tgt_port_show_attr_indx( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(indx); + +static ssize_t target_stat_scsi_tgt_port_show_attr_name( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n", + TPG_TFO(tpg)->get_fabric_name(), sep->sep_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(name); + +static ssize_t target_stat_scsi_tgt_port_show_attr_port_index( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%s%s%d\n", + TPG_TFO(tpg)->tpg_get_wwn(tpg), "+t+", + TPG_TFO(tpg)->tpg_get_tag(tpg)); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(port_index); + +static ssize_t target_stat_scsi_tgt_port_show_attr_in_cmds( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%llu\n", sep->sep_stats.cmd_pdus); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(in_cmds); + +static ssize_t target_stat_scsi_tgt_port_show_attr_write_mbytes( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(sep->sep_stats.rx_data_octets >> 20)); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(write_mbytes); + +static ssize_t target_stat_scsi_tgt_port_show_attr_read_mbytes( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(sep->sep_stats.tx_data_octets >> 20)); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(read_mbytes); + +static ssize_t target_stat_scsi_tgt_port_show_attr_hs_in_cmds( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + /* FIXME: scsiTgtPortHsInCommands */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(hs_in_cmds); + +CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_port, se_port_stat_grps, + scsi_tgt_port_group); + +static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = { + &target_stat_scsi_tgt_port_inst.attr, + &target_stat_scsi_tgt_port_dev.attr, + &target_stat_scsi_tgt_port_indx.attr, + &target_stat_scsi_tgt_port_name.attr, + &target_stat_scsi_tgt_port_port_index.attr, + &target_stat_scsi_tgt_port_in_cmds.attr, + &target_stat_scsi_tgt_port_write_mbytes.attr, + &target_stat_scsi_tgt_port_read_mbytes.attr, + &target_stat_scsi_tgt_port_hs_in_cmds.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_tgt_port_attrib_ops = { + .show_attribute = target_stat_scsi_tgt_port_attr_show, + .store_attribute = target_stat_scsi_tgt_port_attr_store, +}; + +static struct config_item_type target_stat_scsi_tgt_port_cit = { + .ct_item_ops = &target_stat_scsi_tgt_port_attrib_ops, + .ct_attrs = target_stat_scsi_tgt_port_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Transport Table +o */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_transport, se_port_stat_grps); +#define DEV_STAT_SCSI_TRANSPORT_ATTR(_name, _mode) \ +static struct target_stat_scsi_transport_attribute \ + target_stat_scsi_transport_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_transport_show_attr_##_name, \ + target_stat_scsi_transport_store_attr_##_name); + +#define DEV_STAT_SCSI_TRANSPORT_ATTR_RO(_name) \ +static struct target_stat_scsi_transport_attribute \ + target_stat_scsi_transport_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_transport_show_attr_##_name); + +static ssize_t target_stat_scsi_transport_show_attr_inst( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + struct se_hba *hba; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + + hba = dev->se_hba; + ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TRANSPORT_ATTR_RO(inst); + +static ssize_t target_stat_scsi_transport_show_attr_device( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + /* scsiTransportType */ + ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n", + TPG_TFO(tpg)->get_fabric_name()); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TRANSPORT_ATTR_RO(device); + +static ssize_t target_stat_scsi_transport_show_attr_indx( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + ret = snprintf(page, PAGE_SIZE, "%u\n", + TPG_TFO(tpg)->tpg_get_inst_index(tpg)); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TRANSPORT_ATTR_RO(indx); + +static ssize_t target_stat_scsi_transport_show_attr_dev_name( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + struct se_portal_group *tpg; + struct t10_wwn *wwn; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + wwn = DEV_T10_WWN(dev); + /* scsiTransportDevName */ + ret = snprintf(page, PAGE_SIZE, "%s+%s\n", + TPG_TFO(tpg)->tpg_get_wwn(tpg), + (strlen(wwn->unit_serial)) ? wwn->unit_serial : + wwn->vendor); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TRANSPORT_ATTR_RO(dev_name); + +CONFIGFS_EATTR_OPS(target_stat_scsi_transport, se_port_stat_grps, + scsi_transport_group); + +static struct configfs_attribute *target_stat_scsi_transport_attrs[] = { + &target_stat_scsi_transport_inst.attr, + &target_stat_scsi_transport_device.attr, + &target_stat_scsi_transport_indx.attr, + &target_stat_scsi_transport_dev_name.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_transport_attrib_ops = { + .show_attribute = target_stat_scsi_transport_attr_show, + .store_attribute = target_stat_scsi_transport_attr_store, +}; + +static struct config_item_type target_stat_scsi_transport_cit = { + .ct_item_ops = &target_stat_scsi_transport_attrib_ops, + .ct_attrs = target_stat_scsi_transport_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * Called from target_core_fabric_configfs.c:target_fabric_make_lun() to setup + * the target port statistics groups + configfs CITs located in target_core_stat.c + */ +void target_stat_setup_port_default_groups(struct se_lun *lun) +{ + struct config_group *port_stat_grp = &PORT_STAT_GRP(lun)->stat_group; + + config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_port_group, + "scsi_port", &target_stat_scsi_port_cit); + config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_tgt_port_group, + "scsi_tgt_port", &target_stat_scsi_tgt_port_cit); + config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_transport_group, + "scsi_transport", &target_stat_scsi_transport_cit); + + port_stat_grp->default_groups[0] = &PORT_STAT_GRP(lun)->scsi_port_group; + port_stat_grp->default_groups[1] = &PORT_STAT_GRP(lun)->scsi_tgt_port_group; + port_stat_grp->default_groups[2] = &PORT_STAT_GRP(lun)->scsi_transport_group; + port_stat_grp->default_groups[3] = NULL; +} + +/* + * SCSI Authorized Initiator Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_auth_intr, se_ml_stat_grps); +#define DEV_STAT_SCSI_AUTH_INTR_ATTR(_name, _mode) \ +static struct target_stat_scsi_auth_intr_attribute \ + target_stat_scsi_auth_intr_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_auth_intr_show_attr_##_name, \ + target_stat_scsi_auth_intr_store_attr_##_name); + +#define DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(_name) \ +static struct target_stat_scsi_auth_intr_attribute \ + target_stat_scsi_auth_intr_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_auth_intr_show_attr_##_name); + +static ssize_t target_stat_scsi_auth_intr_show_attr_inst( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiInstIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + TPG_TFO(tpg)->tpg_get_inst_index(tpg)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(inst); + +static ssize_t target_stat_scsi_auth_intr_show_attr_dev( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_lun *lun; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + lun = deve->se_lun; + /* scsiDeviceIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev); + +static ssize_t target_stat_scsi_auth_intr_show_attr_port( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiAuthIntrTgtPortIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", TPG_TFO(tpg)->tpg_get_tag(tpg)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(port); + +static ssize_t target_stat_scsi_auth_intr_show_attr_indx( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(indx); + +static ssize_t target_stat_scsi_auth_intr_show_attr_dev_or_port( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrDevOrPort */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 1); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev_or_port); + +static ssize_t target_stat_scsi_auth_intr_show_attr_intr_name( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrName */ + ret = snprintf(page, PAGE_SIZE, "%s\n", nacl->initiatorname); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(intr_name); + +static ssize_t target_stat_scsi_auth_intr_show_attr_map_indx( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* FIXME: scsiAuthIntrLunMapIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(map_indx); + +static ssize_t target_stat_scsi_auth_intr_show_attr_att_count( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrAttachedTimes */ + ret = snprintf(page, PAGE_SIZE, "%u\n", deve->attach_count); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(att_count); + +static ssize_t target_stat_scsi_auth_intr_show_attr_num_cmds( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrOutCommands */ + ret = snprintf(page, PAGE_SIZE, "%u\n", deve->total_cmds); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(num_cmds); + +static ssize_t target_stat_scsi_auth_intr_show_attr_read_mbytes( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrReadMegaBytes */ + ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->read_bytes >> 20)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(read_mbytes); + +static ssize_t target_stat_scsi_auth_intr_show_attr_write_mbytes( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrWrittenMegaBytes */ + ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->write_bytes >> 20)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(write_mbytes); + +static ssize_t target_stat_scsi_auth_intr_show_attr_hs_num_cmds( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* FIXME: scsiAuthIntrHSOutCommands */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(hs_num_cmds); + +static ssize_t target_stat_scsi_auth_intr_show_attr_creation_time( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrLastCreation */ + ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)deve->creation_time - + INITIAL_JIFFIES) * 100 / HZ)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(creation_time); + +static ssize_t target_stat_scsi_auth_intr_show_attr_row_status( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* FIXME: scsiAuthIntrRowStatus */ + ret = snprintf(page, PAGE_SIZE, "Ready\n"); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(row_status); + +CONFIGFS_EATTR_OPS(target_stat_scsi_auth_intr, se_ml_stat_grps, + scsi_auth_intr_group); + +static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = { + &target_stat_scsi_auth_intr_inst.attr, + &target_stat_scsi_auth_intr_dev.attr, + &target_stat_scsi_auth_intr_port.attr, + &target_stat_scsi_auth_intr_indx.attr, + &target_stat_scsi_auth_intr_dev_or_port.attr, + &target_stat_scsi_auth_intr_intr_name.attr, + &target_stat_scsi_auth_intr_map_indx.attr, + &target_stat_scsi_auth_intr_att_count.attr, + &target_stat_scsi_auth_intr_num_cmds.attr, + &target_stat_scsi_auth_intr_read_mbytes.attr, + &target_stat_scsi_auth_intr_write_mbytes.attr, + &target_stat_scsi_auth_intr_hs_num_cmds.attr, + &target_stat_scsi_auth_intr_creation_time.attr, + &target_stat_scsi_auth_intr_row_status.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_auth_intr_attrib_ops = { + .show_attribute = target_stat_scsi_auth_intr_attr_show, + .store_attribute = target_stat_scsi_auth_intr_attr_store, +}; + +static struct config_item_type target_stat_scsi_auth_intr_cit = { + .ct_item_ops = &target_stat_scsi_auth_intr_attrib_ops, + .ct_attrs = target_stat_scsi_auth_intr_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Attached Initiator Port Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_att_intr_port, se_ml_stat_grps); +#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR(_name, _mode) \ +static struct target_stat_scsi_att_intr_port_attribute \ + target_stat_scsi_att_intr_port_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_att_intr_port_show_attr_##_name, \ + target_stat_scsi_att_intr_port_store_attr_##_name); + +#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(_name) \ +static struct target_stat_scsi_att_intr_port_attribute \ + target_stat_scsi_att_intr_port_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_att_intr_port_show_attr_##_name); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_inst( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiInstIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + TPG_TFO(tpg)->tpg_get_inst_index(tpg)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(inst); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_dev( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_lun *lun; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + lun = deve->se_lun; + /* scsiDeviceIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(dev); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_port( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiPortIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", TPG_TFO(tpg)->tpg_get_tag(tpg)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_indx( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_session *se_sess; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->nacl_sess_lock); + se_sess = nacl->nacl_sess; + if (!se_sess) { + spin_unlock_irq(&nacl->nacl_sess_lock); + return -ENODEV; + } + + tpg = nacl->se_tpg; + /* scsiAttIntrPortIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + TPG_TFO(tpg)->sess_get_index(se_sess)); + spin_unlock_irq(&nacl->nacl_sess_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(indx); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_port_auth_indx( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAttIntrPortAuthIntrIdx */ + ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_auth_indx); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_port_ident( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_session *se_sess; + struct se_portal_group *tpg; + ssize_t ret; + unsigned char buf[64]; + + spin_lock_irq(&nacl->nacl_sess_lock); + se_sess = nacl->nacl_sess; + if (!se_sess) { + spin_unlock_irq(&nacl->nacl_sess_lock); + return -ENODEV; + } + + tpg = nacl->se_tpg; + /* scsiAttIntrPortName+scsiAttIntrPortIdentifier */ + memset(buf, 0, 64); + if (TPG_TFO(tpg)->sess_get_initiator_sid != NULL) + TPG_TFO(tpg)->sess_get_initiator_sid(se_sess, + (unsigned char *)&buf[0], 64); + + ret = snprintf(page, PAGE_SIZE, "%s+i+%s\n", nacl->initiatorname, buf); + spin_unlock_irq(&nacl->nacl_sess_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_ident); + +CONFIGFS_EATTR_OPS(target_stat_scsi_att_intr_port, se_ml_stat_grps, + scsi_att_intr_port_group); + +static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = { + &target_stat_scsi_att_intr_port_inst.attr, + &target_stat_scsi_att_intr_port_dev.attr, + &target_stat_scsi_att_intr_port_port.attr, + &target_stat_scsi_att_intr_port_indx.attr, + &target_stat_scsi_att_intr_port_port_auth_indx.attr, + &target_stat_scsi_att_intr_port_port_ident.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_att_intr_port_attrib_ops = { + .show_attribute = target_stat_scsi_att_intr_port_attr_show, + .store_attribute = target_stat_scsi_att_intr_port_attr_store, +}; + +static struct config_item_type target_stat_scsi_att_intr_port_cit = { + .ct_item_ops = &target_stat_scsi_att_intr_port_attrib_ops, + .ct_attrs = target_stat_scsi_ath_intr_port_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * Called from target_core_fabric_configfs.c:target_fabric_make_mappedlun() to setup + * the target MappedLUN statistics groups + configfs CITs located in target_core_stat.c + */ +void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *lacl) +{ + struct config_group *ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group; + + config_group_init_type_name(&ML_STAT_GRPS(lacl)->scsi_auth_intr_group, + "scsi_auth_intr", &target_stat_scsi_auth_intr_cit); + config_group_init_type_name(&ML_STAT_GRPS(lacl)->scsi_att_intr_port_group, + "scsi_att_intr_port", &target_stat_scsi_att_intr_port_cit); + + ml_stat_grp->default_groups[0] = &ML_STAT_GRPS(lacl)->scsi_auth_intr_group; + ml_stat_grp->default_groups[1] = &ML_STAT_GRPS(lacl)->scsi_att_intr_port_group; + ml_stat_grp->default_groups[2] = NULL; +} diff --git a/drivers/target/target_core_stat.h b/drivers/target/target_core_stat.h new file mode 100644 index 000000000000..86c252f9ea47 --- /dev/null +++ b/drivers/target/target_core_stat.h @@ -0,0 +1,8 @@ +#ifndef TARGET_CORE_STAT_H +#define TARGET_CORE_STAT_H + +extern void target_stat_setup_dev_default_groups(struct se_subsystem_dev *); +extern void target_stat_setup_port_default_groups(struct se_lun *); +extern void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *); + +#endif /*** TARGET_CORE_STAT_H ***/ diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 79f2e0a30dc8..c15ed5026fb5 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -601,7 +601,8 @@ struct se_node_acl { struct config_group acl_attrib_group; struct config_group acl_auth_group; struct config_group acl_param_group; - struct config_group *acl_default_groups[4]; + struct config_group acl_fabric_stat_group; + struct config_group *acl_default_groups[5]; struct list_head acl_list; struct list_head acl_sess_list; } ____cacheline_aligned; @@ -622,6 +623,12 @@ struct se_device; struct se_transform_info; struct scatterlist; +struct se_ml_stat_grps { + struct config_group stat_group; + struct config_group scsi_auth_intr_group; + struct config_group scsi_att_intr_port_group; +}; + struct se_lun_acl { char initiatorname[TRANSPORT_IQN_LEN]; u32 mapped_lun; @@ -629,8 +636,11 @@ struct se_lun_acl { struct se_lun *se_lun; struct list_head lacl_list; struct config_group se_lun_group; + struct se_ml_stat_grps ml_stat_grps; } ____cacheline_aligned; +#define ML_STAT_GRPS(lacl) (&(lacl)->ml_stat_grps) + struct se_dev_entry { bool def_pr_registered; /* See transport_lunflags_table */ @@ -693,6 +703,13 @@ struct se_dev_attrib { struct config_group da_group; } ____cacheline_aligned; +struct se_dev_stat_grps { + struct config_group stat_group; + struct config_group scsi_dev_group; + struct config_group scsi_tgt_dev_group; + struct config_group scsi_lu_group; +}; + struct se_subsystem_dev { /* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */ #define SE_DEV_ALIAS_LEN 512 @@ -716,11 +733,14 @@ struct se_subsystem_dev { struct config_group se_dev_group; /* For T10 Reservations */ struct config_group se_dev_pr_group; + /* For target_core_stat.c groups */ + struct se_dev_stat_grps dev_stat_grps; } ____cacheline_aligned; #define T10_ALUA(su_dev) (&(su_dev)->t10_alua) #define T10_RES(su_dev) (&(su_dev)->t10_reservation) #define T10_PR_OPS(su_dev) (&(su_dev)->t10_reservation.pr_ops) +#define DEV_STAT_GRP(dev) (&(dev)->dev_stat_grps) struct se_device { /* Set to 1 if thread is NOT sleeping on thread_sem */ @@ -834,6 +854,13 @@ struct se_hba { #define SE_HBA(dev) ((dev)->se_hba) +struct se_port_stat_grps { + struct config_group stat_group; + struct config_group scsi_port_group; + struct config_group scsi_tgt_port_group; + struct config_group scsi_transport_group; +}; + struct se_lun { /* See transport_lun_status_table */ enum transport_lun_status_table lun_status; @@ -848,11 +875,13 @@ struct se_lun { struct list_head lun_cmd_list; struct list_head lun_acl_list; struct se_device *lun_se_dev; + struct se_port *lun_sep; struct config_group lun_group; - struct se_port *lun_sep; + struct se_port_stat_grps port_stat_grps; } ____cacheline_aligned; #define SE_LUN(cmd) ((cmd)->se_lun) +#define PORT_STAT_GRP(lun) (&(lun)->port_stat_grps) struct scsi_port_stats { u64 cmd_pdus; @@ -924,6 +953,8 @@ struct se_portal_group { struct se_wwn { struct target_fabric_configfs *wwn_tf; struct config_group wwn_group; + struct config_group *wwn_default_groups[2]; + struct config_group fabric_stat_group; } ____cacheline_aligned; struct se_global { diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h index 40e6e740527c..612509592ffd 100644 --- a/include/target/target_core_configfs.h +++ b/include/target/target_core_configfs.h @@ -14,10 +14,12 @@ extern void target_fabric_configfs_deregister(struct target_fabric_configfs *); struct target_fabric_configfs_template { struct config_item_type tfc_discovery_cit; struct config_item_type tfc_wwn_cit; + struct config_item_type tfc_wwn_fabric_stats_cit; struct config_item_type tfc_tpg_cit; struct config_item_type tfc_tpg_base_cit; struct config_item_type tfc_tpg_lun_cit; struct config_item_type tfc_tpg_port_cit; + struct config_item_type tfc_tpg_port_stat_cit; struct config_item_type tfc_tpg_np_cit; struct config_item_type tfc_tpg_np_base_cit; struct config_item_type tfc_tpg_attrib_cit; @@ -27,7 +29,9 @@ struct target_fabric_configfs_template { struct config_item_type tfc_tpg_nacl_attrib_cit; struct config_item_type tfc_tpg_nacl_auth_cit; struct config_item_type tfc_tpg_nacl_param_cit; + struct config_item_type tfc_tpg_nacl_stat_cit; struct config_item_type tfc_tpg_mappedlun_cit; + struct config_item_type tfc_tpg_mappedlun_stat_cit; }; struct target_fabric_configfs { -- cgit v1.2.3 From 0a2385cea9a715e11df10fce1f1442d933008a40 Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" <kashyap.desai@lsi.com> Date: Tue, 15 Mar 2011 20:04:26 +0530 Subject: [SCSI] mpt2sas : Added customer specific display support Added Vendor specific branding message support. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/mpt2sas/mpt2sas_base.c | 49 +++++++++++++++++++++++++++++++++++++ drivers/scsi/mpt2sas/mpt2sas_base.h | 20 +++++++++++++++ 2 files changed, 69 insertions(+) diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index e8a6f1cf1e4b..5e001ffd4c13 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -1747,6 +1747,54 @@ _base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc) } } +/** + * _base_display_hp_branding - Display branding string + * @ioc: per adapter object + * + * Return nothing. + */ +static void +_base_display_hp_branding(struct MPT2SAS_ADAPTER *ioc) +{ + if (ioc->pdev->subsystem_vendor != MPT2SAS_HP_3PAR_SSVID) + return; + + switch (ioc->pdev->device) { + case MPI2_MFGPAGE_DEVID_SAS2004: + switch (ioc->pdev->subsystem_device) { + case MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING); + break; + default: + break; + } + case MPI2_MFGPAGE_DEVID_SAS2308_2: + switch (ioc->pdev->subsystem_device) { + case MPT2SAS_HP_2_4_INTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_2_4_INTERNAL_BRANDING); + break; + case MPT2SAS_HP_2_4_EXTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_2_4_EXTERNAL_BRANDING); + break; + case MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING); + break; + case MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING); + break; + default: + break; + } + default: + break; + } +} + /** * _base_display_ioc_capabilities - Disply IOC's capabilities. * @ioc: per adapter object @@ -1778,6 +1826,7 @@ _base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc) _base_display_dell_branding(ioc); _base_display_intel_branding(ioc); + _base_display_hp_branding(ioc); printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name); diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index a3f8aa9baea4..500328245f61 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -168,6 +168,26 @@ #define MPT2SAS_INTEL_RMS2LL080_SSDID 0x350E #define MPT2SAS_INTEL_RMS2LL040_SSDID 0x350F + +/* + * HP HBA branding + */ +#define MPT2SAS_HP_3PAR_SSVID 0x1590 +#define MPT2SAS_HP_2_4_INTERNAL_BRANDING "HP H220 Host Bus Adapter" +#define MPT2SAS_HP_2_4_EXTERNAL_BRANDING "HP H221 Host Bus Adapter" +#define MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING "HP H222 Host Bus Adapter" +#define MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING "HP H220i Host Bus Adapter" +#define MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING "HP H210i Host Bus Adapter" + +/* + * HO HBA SSDIDs + */ +#define MPT2SAS_HP_2_4_INTERNAL_SSDID 0x0041 +#define MPT2SAS_HP_2_4_EXTERNAL_SSDID 0x0042 +#define MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID 0x0043 +#define MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID 0x0044 +#define MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID 0x0046 + /* * per target private data */ -- cgit v1.2.3 From e8b12f0fb8352237525961f14ec933e915848840 Mon Sep 17 00:00:00 2001 From: Mahesh Rajashekhara <Mahesh_Rajashekhara@pmc-sierra.com> Date: Thu, 17 Mar 2011 02:10:32 -0700 Subject: [SCSI] aacraid: Add new code for PMC-Sierra's SRC based controller family Added new hardware device 0x28b interface for PMC-Sierra's SRC based controller family. - new src.c file for 0x28b specific functions - new XPORT header required - sync. command interface: doorbell bits shifted (SRC_ODR_SHIFT, SRC_IDR_SHIFT) - async. Interface: different inbound queue handling, no outbound I2O queue available, using doorbell ("PmDoorBellResponseSent") and response buffer on the host ("host_rrq") for status - changed AIF (adapter initiated FIBs) interface: "DoorBellAifPending" bit to inform about pending AIF, "AifRequest" command to read AIF, "NoMoreAifDataAvailable" to mark the end of the AIFs Signed-off-by: Mahesh Rajashekhara <aacraid@pmc-sierra.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/aacraid/Makefile | 2 +- drivers/scsi/aacraid/aachba.c | 7 +- drivers/scsi/aacraid/aacraid.h | 106 ++++++- drivers/scsi/aacraid/commctrl.c | 3 +- drivers/scsi/aacraid/comminit.c | 58 +++- drivers/scsi/aacraid/commsup.c | 41 ++- drivers/scsi/aacraid/dpcsup.c | 85 +++++- drivers/scsi/aacraid/linit.c | 15 +- drivers/scsi/aacraid/nark.c | 3 +- drivers/scsi/aacraid/rkt.c | 3 +- drivers/scsi/aacraid/rx.c | 33 ++- drivers/scsi/aacraid/sa.c | 7 +- drivers/scsi/aacraid/src.c | 594 ++++++++++++++++++++++++++++++++++++++++ 13 files changed, 898 insertions(+), 59 deletions(-) create mode 100644 drivers/scsi/aacraid/src.c diff --git a/drivers/scsi/aacraid/Makefile b/drivers/scsi/aacraid/Makefile index 92df4d6b6147..1bd9fd18f7f3 100644 --- a/drivers/scsi/aacraid/Makefile +++ b/drivers/scsi/aacraid/Makefile @@ -3,6 +3,6 @@ obj-$(CONFIG_SCSI_AACRAID) := aacraid.o aacraid-objs := linit.o aachba.o commctrl.o comminit.o commsup.o \ - dpcsup.o rx.o sa.o rkt.o nark.o + dpcsup.o rx.o sa.o rkt.o nark.o src.o ccflags-y := -Idrivers/scsi diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 7df2dd1d2c6f..118ce83a737c 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -1486,7 +1487,9 @@ int aac_get_adapter_info(struct aac_dev* dev) dev->a_ops.adapter_write = aac_write_block; } dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT; - if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) { + if (dev->adapter_info.options & AAC_OPT_NEW_COMM_TYPE1) + dev->adapter_info.options |= AAC_OPT_NEW_COMM; + if (!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) { /* * Worst case size that could cause sg overflow when * we break up SG elements that are larger than 64KB. diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 4dbcc055ac78..29ab00016b78 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -12,7 +12,7 @@ *----------------------------------------------------------------------------*/ #ifndef AAC_DRIVER_BUILD -# define AAC_DRIVER_BUILD 26400 +# define AAC_DRIVER_BUILD 28000 # define AAC_DRIVER_BRANCH "-ms" #endif #define MAXIMUM_NUM_CONTAINERS 32 @@ -277,6 +277,16 @@ enum aac_queue_types { #define FsaNormal 1 +/* transport FIB header (PMC) */ +struct aac_fib_xporthdr { + u64 HostAddress; /* FIB host address w/o xport header */ + u32 Size; /* FIB size excluding xport header */ + u32 Handle; /* driver handle to reference the FIB */ + u64 Reserved[2]; +}; + +#define ALIGN32 32 + /* * Define the FIB. The FIB is the where all the requested data and * command information are put to the application on the FSA adapter. @@ -394,7 +404,9 @@ enum fib_xfer_state { AdapterMicroFib = (1<<17), BIOSFibPath = (1<<18), FastResponseCapable = (1<<19), - ApiFib = (1<<20) // Its an API Fib. + ApiFib = (1<<20), /* Its an API Fib */ + /* PMC NEW COMM: There is no more AIF data pending */ + NoMoreAifDataAvailable = (1<<21) }; /* @@ -404,6 +416,7 @@ enum fib_xfer_state { #define ADAPTER_INIT_STRUCT_REVISION 3 #define ADAPTER_INIT_STRUCT_REVISION_4 4 // rocket science +#define ADAPTER_INIT_STRUCT_REVISION_6 6 /* PMC src */ struct aac_init { @@ -428,9 +441,15 @@ struct aac_init #define INITFLAGS_NEW_COMM_SUPPORTED 0x00000001 #define INITFLAGS_DRIVER_USES_UTC_TIME 0x00000010 #define INITFLAGS_DRIVER_SUPPORTS_PM 0x00000020 +#define INITFLAGS_NEW_COMM_TYPE1_SUPPORTED 0x00000041 __le32 MaxIoCommands; /* max outstanding commands */ __le32 MaxIoSize; /* largest I/O command */ __le32 MaxFibSize; /* largest FIB to adapter */ + /* ADAPTER_INIT_STRUCT_REVISION_5 begins here */ + __le32 MaxNumAif; /* max number of aif */ + /* ADAPTER_INIT_STRUCT_REVISION_6 begins here */ + __le32 HostRRQ_AddrLow; + __le32 HostRRQ_AddrHigh; /* Host RRQ (response queue) for SRC */ }; enum aac_log_level { @@ -685,7 +704,7 @@ struct rx_inbound { #define OutboundDoorbellReg MUnit.ODR struct rx_registers { - struct rx_mu_registers MUnit; /* 1300h - 1344h */ + struct rx_mu_registers MUnit; /* 1300h - 1347h */ __le32 reserved1[2]; /* 1348h - 134ch */ struct rx_inbound IndexRegs; }; @@ -703,7 +722,7 @@ struct rx_registers { #define rkt_inbound rx_inbound struct rkt_registers { - struct rkt_mu_registers MUnit; /* 1300h - 1344h */ + struct rkt_mu_registers MUnit; /* 1300h - 1347h */ __le32 reserved1[1006]; /* 1348h - 22fch */ struct rkt_inbound IndexRegs; /* 2300h - */ }; @@ -713,6 +732,44 @@ struct rkt_registers { #define rkt_writeb(AEP, CSR, value) writeb(value, &((AEP)->regs.rkt->CSR)) #define rkt_writel(AEP, CSR, value) writel(value, &((AEP)->regs.rkt->CSR)) +/* + * PMC SRC message unit registers + */ + +#define src_inbound rx_inbound + +struct src_mu_registers { + /* PCI*| Name */ + __le32 reserved0[8]; /* 00h | Reserved */ + __le32 IDR; /* 20h | Inbound Doorbell Register */ + __le32 IISR; /* 24h | Inbound Int. Status Register */ + __le32 reserved1[3]; /* 28h | Reserved */ + __le32 OIMR; /* 34h | Outbound Int. Mask Register */ + __le32 reserved2[25]; /* 38h | Reserved */ + __le32 ODR_R; /* 9ch | Outbound Doorbell Read */ + __le32 ODR_C; /* a0h | Outbound Doorbell Clear */ + __le32 reserved3[6]; /* a4h | Reserved */ + __le32 OMR; /* bch | Outbound Message Register */ + __le32 IQ_L; /* c0h | Inbound Queue (Low address) */ + __le32 IQ_H; /* c4h | Inbound Queue (High address) */ +}; + +struct src_registers { + struct src_mu_registers MUnit; /* 00h - c7h */ + __le32 reserved1[130790]; /* c8h - 7fc5fh */ + struct src_inbound IndexRegs; /* 7fc60h */ +}; + +#define src_readb(AEP, CSR) readb(&((AEP)->regs.src.bar0->CSR)) +#define src_readl(AEP, CSR) readl(&((AEP)->regs.src.bar0->CSR)) +#define src_writeb(AEP, CSR, value) writeb(value, \ + &((AEP)->regs.src.bar0->CSR)) +#define src_writel(AEP, CSR, value) writel(value, \ + &((AEP)->regs.src.bar0->CSR)) + +#define SRC_ODR_SHIFT 12 +#define SRC_IDR_SHIFT 9 + typedef void (*fib_callback)(void *ctxt, struct fib *fibctx); struct aac_fib_context { @@ -879,6 +936,7 @@ struct aac_supplement_adapter_info #define AAC_OPTION_MU_RESET cpu_to_le32(0x00000001) #define AAC_OPTION_IGNORE_RESET cpu_to_le32(0x00000002) #define AAC_OPTION_POWER_MANAGEMENT cpu_to_le32(0x00000004) +#define AAC_OPTION_DOORBELL_RESET cpu_to_le32(0x00004000) #define AAC_SIS_VERSION_V3 3 #define AAC_SIS_SLOT_UNKNOWN 0xFF @@ -940,6 +998,7 @@ struct aac_bus_info_response { #define AAC_OPT_SUPPLEMENT_ADAPTER_INFO cpu_to_le32(1<<16) #define AAC_OPT_NEW_COMM cpu_to_le32(1<<17) #define AAC_OPT_NEW_COMM_64 cpu_to_le32(1<<18) +#define AAC_OPT_NEW_COMM_TYPE1 cpu_to_le32(1<<28) struct aac_dev { @@ -952,6 +1011,7 @@ struct aac_dev */ unsigned max_fib_size; unsigned sg_tablesize; + unsigned max_num_aif; /* * Map for 128 fib objects (64k) @@ -980,10 +1040,21 @@ struct aac_dev struct adapter_ops a_ops; unsigned long fsrev; /* Main driver's revision number */ - unsigned base_size; /* Size of mapped in region */ + unsigned long dbg_base; /* address of UART + * debug buffer */ + + unsigned base_size, dbg_size; /* Size of + * mapped in region */ + struct aac_init *init; /* Holds initialization info to communicate with adapter */ dma_addr_t init_pa; /* Holds physical address of the init struct */ + u32 *host_rrq; /* response queue + * if AAC_COMM_MESSAGE_TYPE1 */ + + dma_addr_t host_rrq_pa; /* phys. address */ + u32 host_rrq_idx; /* index into rrq buffer */ + struct pci_dev *pdev; /* Our PCI interface */ void * printfbuf; /* pointer to buffer used for printf's from the adapter */ void * comm_addr; /* Base address of Comm area */ @@ -1003,14 +1074,20 @@ struct aac_dev */ #ifndef AAC_MIN_FOOTPRINT_SIZE # define AAC_MIN_FOOTPRINT_SIZE 8192 +# define AAC_MIN_SRC_BAR0_SIZE 0x400000 +# define AAC_MIN_SRC_BAR1_SIZE 0x800 #endif union { struct sa_registers __iomem *sa; struct rx_registers __iomem *rx; struct rkt_registers __iomem *rkt; + struct { + struct src_registers __iomem *bar0; + char __iomem *bar1; + } src; } regs; - volatile void __iomem *base; + volatile void __iomem *base, *dbg_base_mapped; volatile struct rx_inbound __iomem *IndexRegs; u32 OIMR; /* Mask Register Cache */ /* @@ -1031,9 +1108,8 @@ struct aac_dev u8 comm_interface; # define AAC_COMM_PRODUCER 0 # define AAC_COMM_MESSAGE 1 - /* macro side-effects BEWARE */ -# define raw_io_interface \ - init->InitStructRevision==cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4) +# define AAC_COMM_MESSAGE_TYPE1 3 + u8 raw_io_interface; u8 raw_io_64; u8 printf_enabled; u8 in_reset; @@ -1789,6 +1865,10 @@ extern struct aac_common aac_config; #define DoorBellAdapterNormCmdNotFull (1<<3) /* Adapter -> Host */ #define DoorBellAdapterNormRespNotFull (1<<4) /* Adapter -> Host */ #define DoorBellPrintfReady (1<<5) /* Adapter -> Host */ +#define DoorBellAifPending (1<<6) /* Adapter -> Host */ + +/* PMC specific outbound doorbell bits */ +#define PmDoorBellResponseSent (1<<1) /* Adapter -> Host */ /* * For FIB communication, we need all of the following things @@ -1831,6 +1911,9 @@ extern struct aac_common aac_config; #define AifReqAPIJobUpdate 109 /* Update a job report from the API */ #define AifReqAPIJobFinish 110 /* Finish a job from the API */ +/* PMC NEW COMM: Request the event data */ +#define AifReqEvent 200 + /* * Adapter Initiated FIB command structures. Start with the adapter * initiated FIBs that really come from the adapter, and get responded @@ -1886,10 +1969,13 @@ int aac_rx_init(struct aac_dev *dev); int aac_rkt_init(struct aac_dev *dev); int aac_nark_init(struct aac_dev *dev); int aac_sa_init(struct aac_dev *dev); +int aac_src_init(struct aac_dev *dev); int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw_fib, int wait, struct fib * fibptr, unsigned long *nonotify); unsigned int aac_response_normal(struct aac_queue * q); unsigned int aac_command_normal(struct aac_queue * q); -unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index); +unsigned int aac_intr_normal(struct aac_dev *dev, u32 Index, + int isAif, int isFastResponse, + struct hw_fib *aif_fib); int aac_reset_adapter(struct aac_dev * dev, int forced); int aac_check_health(struct aac_dev * dev); int aac_command_thread(void *data); diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index 645ddd9d9b9e..8a0b33033177 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index a7261486ccd4..7ac8fdb5577b 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -52,12 +53,16 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co unsigned long size, align; const unsigned long fibsize = 4096; const unsigned long printfbufsiz = 256; + unsigned long host_rrq_size = 0; struct aac_init *init; dma_addr_t phys; unsigned long aac_max_hostphysmempages; - size = fibsize + sizeof(struct aac_init) + commsize + commalign + printfbufsiz; - + if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) + host_rrq_size = (dev->scsi_host_ptr->can_queue + + AAC_NUM_MGT_FIB) * sizeof(u32); + size = fibsize + sizeof(struct aac_init) + commsize + + commalign + printfbufsiz + host_rrq_size; base = pci_alloc_consistent(dev->pdev, size, &phys); @@ -70,8 +75,14 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co dev->comm_phys = phys; dev->comm_size = size; - dev->init = (struct aac_init *)(base + fibsize); - dev->init_pa = phys + fibsize; + if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { + dev->host_rrq = (u32 *)(base + fibsize); + dev->host_rrq_pa = phys + fibsize; + memset(dev->host_rrq, 0, host_rrq_size); + } + + dev->init = (struct aac_init *)(base + fibsize + host_rrq_size); + dev->init_pa = phys + fibsize + host_rrq_size; init = dev->init; @@ -106,8 +117,13 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co init->InitFlags = 0; if (dev->comm_interface == AAC_COMM_MESSAGE) { - init->InitFlags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); + init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n")); + } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { + init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6); + init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_TYPE1_SUPPORTED); + dprintk((KERN_WARNING + "aacraid: New Comm Interface type1 enabled\n")); } init->InitFlags |= cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME | INITFLAGS_DRIVER_SUPPORTS_PM); @@ -115,11 +131,18 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); init->MaxFibSize = cpu_to_le32(dev->max_fib_size); + init->MaxNumAif = cpu_to_le32(dev->max_num_aif); + init->HostRRQ_AddrHigh = (u32)((u64)dev->host_rrq_pa >> 32); + init->HostRRQ_AddrLow = (u32)(dev->host_rrq_pa & 0xffffffff); + + /* * Increment the base address by the amount already used */ - base = base + fibsize + sizeof(struct aac_init); - phys = (dma_addr_t)((ulong)phys + fibsize + sizeof(struct aac_init)); + base = base + fibsize + host_rrq_size + sizeof(struct aac_init); + phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size + + sizeof(struct aac_init)); + /* * Align the beginning of Headers to commalign */ @@ -314,15 +337,22 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) - sizeof(struct aac_write) + sizeof(struct sgentry)) / sizeof(struct sgentry); dev->comm_interface = AAC_COMM_PRODUCER; - dev->raw_io_64 = 0; + dev->raw_io_interface = dev->raw_io_64 = 0; + if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) && (status[0] == 0x00000001)) { if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64)) dev->raw_io_64 = 1; - if (dev->a_ops.adapter_comm && - (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM))) - dev->comm_interface = AAC_COMM_MESSAGE; + if (dev->a_ops.adapter_comm) { + if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1)) { + dev->comm_interface = AAC_COMM_MESSAGE_TYPE1; + dev->raw_io_interface = 1; + } else if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM)) { + dev->comm_interface = AAC_COMM_MESSAGE; + dev->raw_io_interface = 1; + } + } if ((dev->comm_interface == AAC_COMM_MESSAGE) && (status[2] > dev->base_size)) { aac_adapter_ioremap(dev, 0); @@ -350,10 +380,12 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) * status[3] & 0xFFFF maximum number FIBs outstanding */ host->max_sectors = (status[1] >> 16) << 1; - dev->max_fib_size = status[1] & 0xFFFF; + /* Multiple of 32 for PMC */ + dev->max_fib_size = status[1] & 0xFFE0; host->sg_tablesize = status[2] >> 16; dev->sg_tablesize = status[2] & 0xFFFF; host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB; + dev->max_num_aif = status[4] & 0xFFFF; /* * NOTE: * All these overrides are based on a fixed internal diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 060ac4bd5a14..dd7ad3ba2dad 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -63,9 +64,11 @@ static int fib_map_alloc(struct aac_dev *dev) "allocate hardware fibs pci_alloc_consistent(%p, %d * (%d + %d), %p)\n", dev->pdev, dev->max_fib_size, dev->scsi_host_ptr->can_queue, AAC_NUM_MGT_FIB, &dev->hw_fib_pa)); - if((dev->hw_fib_va = pci_alloc_consistent(dev->pdev, dev->max_fib_size - * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB), - &dev->hw_fib_pa))==NULL) + dev->hw_fib_va = pci_alloc_consistent(dev->pdev, + (dev->max_fib_size + sizeof(struct aac_fib_xporthdr)) + * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) + (ALIGN32 - 1), + &dev->hw_fib_pa); + if (dev->hw_fib_va == NULL) return -ENOMEM; return 0; } @@ -110,9 +113,22 @@ int aac_fib_setup(struct aac_dev * dev) if (i<0) return -ENOMEM; + /* 32 byte alignment for PMC */ + hw_fib_pa = (dev->hw_fib_pa + (ALIGN32 - 1)) & ~(ALIGN32 - 1); + dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va + + (hw_fib_pa - dev->hw_fib_pa)); + dev->hw_fib_pa = hw_fib_pa; + memset(dev->hw_fib_va, 0, + (dev->max_fib_size + sizeof(struct aac_fib_xporthdr)) * + (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)); + + /* add Xport header */ + dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va + + sizeof(struct aac_fib_xporthdr)); + dev->hw_fib_pa += sizeof(struct aac_fib_xporthdr); + hw_fib = dev->hw_fib_va; hw_fib_pa = dev->hw_fib_pa; - memset(hw_fib, 0, dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)); /* * Initialise the fibs */ @@ -129,8 +145,10 @@ int aac_fib_setup(struct aac_dev * dev) hw_fib->header.XferState = cpu_to_le32(0xffffffff); hw_fib->header.SenderSize = cpu_to_le16(dev->max_fib_size); fibptr->hw_fib_pa = hw_fib_pa; - hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + dev->max_fib_size); - hw_fib_pa = hw_fib_pa + dev->max_fib_size; + hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + + dev->max_fib_size + sizeof(struct aac_fib_xporthdr)); + hw_fib_pa = hw_fib_pa + + dev->max_fib_size + sizeof(struct aac_fib_xporthdr); } /* * Add the fib chain to the free list @@ -664,9 +682,14 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) unsigned long nointr = 0; unsigned long qflags; + if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { + kfree(hw_fib); + return 0; + } + if (hw_fib->header.XferState == 0) { if (dev->comm_interface == AAC_COMM_MESSAGE) - kfree (hw_fib); + kfree(hw_fib); return 0; } /* @@ -674,7 +697,7 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) */ if (hw_fib->header.StructType != FIB_MAGIC) { if (dev->comm_interface == AAC_COMM_MESSAGE) - kfree (hw_fib); + kfree(hw_fib); return -EINVAL; } /* diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c index 9c7408fe8c7d..f0c66a80ad13 100644 --- a/drivers/scsi/aacraid/dpcsup.c +++ b/drivers/scsi/aacraid/dpcsup.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -228,6 +229,48 @@ unsigned int aac_command_normal(struct aac_queue *q) return 0; } +/* + * + * aac_aif_callback + * @context: the context set in the fib - here it is scsi cmd + * @fibptr: pointer to the fib + * + * Handles the AIFs - new method (SRC) + * + */ + +static void aac_aif_callback(void *context, struct fib * fibptr) +{ + struct fib *fibctx; + struct aac_dev *dev; + struct aac_aifcmd *cmd; + int status; + + fibctx = (struct fib *)context; + BUG_ON(fibptr == NULL); + dev = fibptr->dev; + + if (fibptr->hw_fib_va->header.XferState & + cpu_to_le32(NoMoreAifDataAvailable)) { + aac_fib_complete(fibptr); + aac_fib_free(fibptr); + return; + } + + aac_intr_normal(dev, 0, 1, 0, fibptr->hw_fib_va); + + aac_fib_init(fibctx); + cmd = (struct aac_aifcmd *) fib_data(fibctx); + cmd->command = cpu_to_le32(AifReqEvent); + + status = aac_fib_send(AifRequest, + fibctx, + sizeof(struct hw_fib)-sizeof(struct aac_fibhdr), + FsaNormal, + 0, 1, + (fib_callback)aac_aif_callback, fibctx); +} + /** * aac_intr_normal - Handle command replies @@ -238,19 +281,17 @@ unsigned int aac_command_normal(struct aac_queue *q) * know there is a response on our normal priority queue. We will pull off * all QE there are and wake up all the waiters before exiting. */ - -unsigned int aac_intr_normal(struct aac_dev * dev, u32 index) +unsigned int aac_intr_normal(struct aac_dev *dev, u32 index, + int isAif, int isFastResponse, struct hw_fib *aif_fib) { unsigned long mflags; dprintk((KERN_INFO "aac_intr_normal(%p,%x)\n", dev, index)); - if ((index & 0x00000002L)) { + if (isAif == 1) { /* AIF - common */ struct hw_fib * hw_fib; struct fib * fib; struct aac_queue *q = &dev->queues->queue[HostNormCmdQueue]; unsigned long flags; - if (index == 0xFFFFFFFEL) /* Special Case */ - return 0; /* Do nothing */ /* * Allocate a FIB. For non queued stuff we can just use * the stack so we are happy. We need a fib object in order to @@ -263,8 +304,13 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index) kfree (fib); return 1; } - memcpy(hw_fib, (struct hw_fib *)(((uintptr_t)(dev->regs.sa)) + - (index & ~0x00000002L)), sizeof(struct hw_fib)); + if (aif_fib != NULL) { + memcpy(hw_fib, aif_fib, sizeof(struct hw_fib)); + } else { + memcpy(hw_fib, + (struct hw_fib *)(((uintptr_t)(dev->regs.sa)) + + index), sizeof(struct hw_fib)); + } INIT_LIST_HEAD(&fib->fiblink); fib->type = FSAFS_NTC_FIB_CONTEXT; fib->size = sizeof(struct fib); @@ -277,9 +323,26 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index) wake_up_interruptible(&q->cmdready); spin_unlock_irqrestore(q->lock, flags); return 1; + } else if (isAif == 2) { /* AIF - new (SRC) */ + struct fib *fibctx; + struct aac_aifcmd *cmd; + + fibctx = aac_fib_alloc(dev); + if (!fibctx) + return 1; + aac_fib_init(fibctx); + + cmd = (struct aac_aifcmd *) fib_data(fibctx); + cmd->command = cpu_to_le32(AifReqEvent); + + return aac_fib_send(AifRequest, + fibctx, + sizeof(struct hw_fib)-sizeof(struct aac_fibhdr), + FsaNormal, + 0, 1, + (fib_callback)aac_aif_callback, fibctx); } else { - int fast = index & 0x01; - struct fib * fib = &dev->fibs[index >> 2]; + struct fib *fib = &dev->fibs[index]; struct hw_fib * hwfib = fib->hw_fib_va; /* @@ -298,7 +361,7 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index) return 0; } - if (fast) { + if (isFastResponse) { /* * Doctor the fib */ diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 2c93d9496d62..4ff26521d75f 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -54,7 +55,7 @@ #include "aacraid.h" -#define AAC_DRIVER_VERSION "1.1-5" +#define AAC_DRIVER_VERSION "1.1-7" #ifndef AAC_DRIVER_BRANCH #define AAC_DRIVER_BRANCH "" #endif @@ -161,6 +162,7 @@ static const struct pci_device_id aac_pci_tbl[] __devinitdata = { { 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */ { 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */ { 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */ + { 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Catch All */ { 0,} }; MODULE_DEVICE_TABLE(pci, aac_pci_tbl); @@ -235,7 +237,8 @@ static struct aac_driver_ident aac_drivers[] = { { aac_rx_init, "aacraid", "Legend ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */ { aac_rx_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Catch All */ { aac_rkt_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Rocket Catch All */ - { aac_nark_init, "aacraid", "ADAPTEC ", "RAID ", 2 } /* Adaptec NEMER/ARK Catch All */ + { aac_nark_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec NEMER/ARK Catch All */ + { aac_src_init, "aacraid", "ADAPTEC ", "RAID ", 2 } /* Adaptec PMC Catch All */ }; /** @@ -653,8 +656,10 @@ static int aac_eh_reset(struct scsi_cmnd* cmd) * This adapter needs a blind reset, only do so for Adapters that * support a register, instead of a commanded, reset. */ - if ((aac->supplement_adapter_info.SupportedOptions2 & - AAC_OPTION_MU_RESET) && + if (((aac->supplement_adapter_info.SupportedOptions2 & + AAC_OPTION_MU_RESET) || + (aac->supplement_adapter_info.SupportedOptions2 & + AAC_OPTION_DOORBELL_RESET)) && aac_check_reset && ((aac_check_reset != 1) || !(aac->supplement_adapter_info.SupportedOptions2 & diff --git a/drivers/scsi/aacraid/nark.c b/drivers/scsi/aacraid/nark.c index c55f7c862f0e..f397d21a0c06 100644 --- a/drivers/scsi/aacraid/nark.c +++ b/drivers/scsi/aacraid/nark.c @@ -4,7 +4,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2006-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c index 16d8db550027..be44de92429a 100644 --- a/drivers/scsi/aacraid/rkt.c +++ b/drivers/scsi/aacraid/rkt.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c index 84d77fd86e5b..ce530f113fdb 100644 --- a/drivers/scsi/aacraid/rx.c +++ b/drivers/scsi/aacraid/rx.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -84,15 +85,35 @@ static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id) static irqreturn_t aac_rx_intr_message(int irq, void *dev_id) { + int isAif, isFastResponse, isSpecial; struct aac_dev *dev = dev_id; u32 Index = rx_readl(dev, MUnit.OutboundQueue); if (unlikely(Index == 0xFFFFFFFFL)) Index = rx_readl(dev, MUnit.OutboundQueue); if (likely(Index != 0xFFFFFFFFL)) { do { - if (unlikely(aac_intr_normal(dev, Index))) { - rx_writel(dev, MUnit.OutboundQueue, Index); - rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespReady); + isAif = isFastResponse = isSpecial = 0; + if (Index & 0x00000002L) { + isAif = 1; + if (Index == 0xFFFFFFFEL) + isSpecial = 1; + Index &= ~0x00000002L; + } else { + if (Index & 0x00000001L) + isFastResponse = 1; + Index >>= 2; + } + if (!isSpecial) { + if (unlikely(aac_intr_normal(dev, + Index, isAif, + isFastResponse, NULL))) { + rx_writel(dev, + MUnit.OutboundQueue, + Index); + rx_writel(dev, + MUnit.ODR, + DoorBellAdapterNormRespReady); + } } Index = rx_readl(dev, MUnit.OutboundQueue); } while (Index != 0xFFFFFFFFL); @@ -631,6 +652,10 @@ int _aac_rx_init(struct aac_dev *dev) name, instance); goto error_iounmap; } + dev->dbg_base = dev->scsi_host_ptr->base; + dev->dbg_base_mapped = dev->base; + dev->dbg_size = dev->base_size; + aac_adapter_enable_int(dev); /* * Tell the adapter that all is configured, and it can diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c index 622c21c68e65..e5d4457121ea 100644 --- a/drivers/scsi/aacraid/sa.c +++ b/drivers/scsi/aacraid/sa.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -391,6 +392,10 @@ int aac_sa_init(struct aac_dev *dev) name, instance); goto error_iounmap; } + dev->dbg_base = dev->scsi_host_ptr->base; + dev->dbg_base_mapped = dev->base; + dev->dbg_size = dev->base_size; + aac_adapter_enable_int(dev); /* diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c new file mode 100644 index 000000000000..c20494660603 --- /dev/null +++ b/drivers/scsi/aacraid/src.c @@ -0,0 +1,594 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Module Name: + * src.c + * + * Abstract: Hardware Device Interface for PMC SRC based controllers + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/spinlock.h> +#include <linux/slab.h> +#include <linux/blkdev.h> +#include <linux/delay.h> +#include <linux/version.h> +#include <linux/completion.h> +#include <linux/time.h> +#include <linux/interrupt.h> +#include <scsi/scsi_host.h> + +#include "aacraid.h" + +static irqreturn_t aac_src_intr_message(int irq, void *dev_id) +{ + struct aac_dev *dev = dev_id; + unsigned long bellbits, bellbits_shifted; + int our_interrupt = 0; + int isFastResponse; + u32 index, handle; + + bellbits = src_readl(dev, MUnit.ODR_R); + if (bellbits & PmDoorBellResponseSent) { + bellbits = PmDoorBellResponseSent; + /* handle async. status */ + our_interrupt = 1; + index = dev->host_rrq_idx; + if (dev->host_rrq[index] == 0) { + u32 old_index = index; + /* adjust index */ + do { + index++; + if (index == dev->scsi_host_ptr->can_queue + + AAC_NUM_MGT_FIB) + index = 0; + if (dev->host_rrq[index] != 0) + break; + } while (index != old_index); + dev->host_rrq_idx = index; + } + for (;;) { + isFastResponse = 0; + /* remove toggle bit (31) */ + handle = (dev->host_rrq[index] & 0x7fffffff); + /* check fast response bit (30) */ + if (handle & 0x40000000) + isFastResponse = 1; + handle &= 0x0000ffff; + if (handle == 0) + break; + + aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL); + + dev->host_rrq[index++] = 0; + if (index == dev->scsi_host_ptr->can_queue + + AAC_NUM_MGT_FIB) + index = 0; + dev->host_rrq_idx = index; + } + } else { + bellbits_shifted = (bellbits >> SRC_ODR_SHIFT); + if (bellbits_shifted & DoorBellAifPending) { + our_interrupt = 1; + /* handle AIF */ + aac_intr_normal(dev, 0, 2, 0, NULL); + } + } + + if (our_interrupt) { + src_writel(dev, MUnit.ODR_C, bellbits); + return IRQ_HANDLED; + } + return IRQ_NONE; +} + +/** + * aac_src_disable_interrupt - Disable interrupts + * @dev: Adapter + */ + +static void aac_src_disable_interrupt(struct aac_dev *dev) +{ + src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); +} + +/** + * aac_src_enable_interrupt_message - Enable interrupts + * @dev: Adapter + */ + +static void aac_src_enable_interrupt_message(struct aac_dev *dev) +{ + src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8); +} + +/** + * src_sync_cmd - send a command and wait + * @dev: Adapter + * @command: Command to execute + * @p1: first parameter + * @ret: adapter status + * + * This routine will send a synchronous command to the adapter and wait + * for its completion. + */ + +static int src_sync_cmd(struct aac_dev *dev, u32 command, + u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, + u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4) +{ + unsigned long start; + int ok; + + /* + * Write the command into Mailbox 0 + */ + writel(command, &dev->IndexRegs->Mailbox[0]); + /* + * Write the parameters into Mailboxes 1 - 6 + */ + writel(p1, &dev->IndexRegs->Mailbox[1]); + writel(p2, &dev->IndexRegs->Mailbox[2]); + writel(p3, &dev->IndexRegs->Mailbox[3]); + writel(p4, &dev->IndexRegs->Mailbox[4]); + + /* + * Clear the synch command doorbell to start on a clean slate. + */ + src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); + + /* + * Disable doorbell interrupts + */ + src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); + + /* + * Force the completion of the mask register write before issuing + * the interrupt. + */ + src_readl(dev, MUnit.OIMR); + + /* + * Signal that there is a new synch command + */ + src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT); + + ok = 0; + start = jiffies; + + /* + * Wait up to 30 seconds + */ + while (time_before(jiffies, start+30*HZ)) { + /* Delay 5 microseconds to let Mon960 get info. */ + udelay(5); + + /* Mon960 will set doorbell0 bit + * when it has completed the command + */ + if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) { + /* Clear the doorbell */ + src_writel(dev, + MUnit.ODR_C, + OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); + ok = 1; + break; + } + + /* Yield the processor in case we are slow */ + msleep(1); + } + if (unlikely(ok != 1)) { + /* Restore interrupt mask even though we timed out */ + aac_adapter_enable_int(dev); + return -ETIMEDOUT; + } + + /* Pull the synch status from Mailbox 0 */ + if (status) + *status = readl(&dev->IndexRegs->Mailbox[0]); + if (r1) + *r1 = readl(&dev->IndexRegs->Mailbox[1]); + if (r2) + *r2 = readl(&dev->IndexRegs->Mailbox[2]); + if (r3) + *r3 = readl(&dev->IndexRegs->Mailbox[3]); + if (r4) + *r4 = readl(&dev->IndexRegs->Mailbox[4]); + + /* Clear the synch command doorbell */ + src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); + + /* Restore interrupt mask */ + aac_adapter_enable_int(dev); + return 0; + +} + +/** + * aac_src_interrupt_adapter - interrupt adapter + * @dev: Adapter + * + * Send an interrupt to the i960 and breakpoint it. + */ + +static void aac_src_interrupt_adapter(struct aac_dev *dev) +{ + src_sync_cmd(dev, BREAKPOINT_REQUEST, + 0, 0, 0, 0, 0, 0, + NULL, NULL, NULL, NULL, NULL); +} + +/** + * aac_src_notify_adapter - send an event to the adapter + * @dev: Adapter + * @event: Event to send + * + * Notify the i960 that something it probably cares about has + * happened. + */ + +static void aac_src_notify_adapter(struct aac_dev *dev, u32 event) +{ + switch (event) { + + case AdapNormCmdQue: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_1 << SRC_ODR_SHIFT); + break; + case HostNormRespNotFull: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_4 << SRC_ODR_SHIFT); + break; + case AdapNormRespQue: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_2 << SRC_ODR_SHIFT); + break; + case HostNormCmdNotFull: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_3 << SRC_ODR_SHIFT); + break; + case FastIo: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_6 << SRC_ODR_SHIFT); + break; + case AdapPrintfDone: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_5 << SRC_ODR_SHIFT); + break; + default: + BUG(); + break; + } +} + +/** + * aac_src_start_adapter - activate adapter + * @dev: Adapter + * + * Start up processing on an i960 based AAC adapter + */ + +static void aac_src_start_adapter(struct aac_dev *dev) +{ + struct aac_init *init; + + init = dev->init; + init->HostElapsedSeconds = cpu_to_le32(get_seconds()); + + /* We can only use a 32 bit address here */ + src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa, + 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); +} + +/** + * aac_src_check_health + * @dev: device to check if healthy + * + * Will attempt to determine if the specified adapter is alive and + * capable of handling requests, returning 0 if alive. + */ +static int aac_src_check_health(struct aac_dev *dev) +{ + u32 status = src_readl(dev, MUnit.OMR); + + /* + * Check to see if the board failed any self tests. + */ + if (unlikely(status & SELF_TEST_FAILED)) + return -1; + + /* + * Check to see if the board panic'd. + */ + if (unlikely(status & KERNEL_PANIC)) + return (status >> 16) & 0xFF; + /* + * Wait for the adapter to be up and running. + */ + if (unlikely(!(status & KERNEL_UP_AND_RUNNING))) + return -3; + /* + * Everything is OK + */ + return 0; +} + +/** + * aac_src_deliver_message + * @fib: fib to issue + * + * Will send a fib, returning 0 if successful. + */ +static int aac_src_deliver_message(struct fib *fib) +{ + struct aac_dev *dev = fib->dev; + struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue]; + unsigned long qflags; + u32 fibsize; + u64 address; + struct aac_fib_xporthdr *pFibX; + + spin_lock_irqsave(q->lock, qflags); + q->numpending++; + spin_unlock_irqrestore(q->lock, qflags); + + /* Calculate the amount to the fibsize bits */ + fibsize = (sizeof(struct aac_fib_xporthdr) + + fib->hw_fib_va->header.Size + 127) / 128 - 1; + if (fibsize > (ALIGN32 - 1)) + fibsize = ALIGN32 - 1; + + /* Fill XPORT header */ + pFibX = (struct aac_fib_xporthdr *) + ((unsigned char *)fib->hw_fib_va - + sizeof(struct aac_fib_xporthdr)); + pFibX->Handle = fib->hw_fib_va->header.SenderData + 1; + pFibX->HostAddress = fib->hw_fib_pa; + pFibX->Size = fib->hw_fib_va->header.Size; + address = fib->hw_fib_pa - (u64)sizeof(struct aac_fib_xporthdr); + + src_writel(dev, MUnit.IQ_H, (u32)(address >> 32)); + src_writel(dev, MUnit.IQ_L, (u32)(address & 0xffffffff) + fibsize); + return 0; +} + +/** + * aac_src_ioremap + * @size: mapping resize request + * + */ +static int aac_src_ioremap(struct aac_dev *dev, u32 size) +{ + if (!size) { + iounmap(dev->regs.src.bar0); + dev->regs.src.bar0 = NULL; + iounmap(dev->base); + dev->base = NULL; + return 0; + } + dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2), + AAC_MIN_SRC_BAR1_SIZE); + dev->base = NULL; + if (dev->regs.src.bar1 == NULL) + return -1; + dev->base = dev->regs.src.bar0 = ioremap(dev->scsi_host_ptr->base, + size); + if (dev->base == NULL) { + iounmap(dev->regs.src.bar1); + dev->regs.src.bar1 = NULL; + return -1; + } + dev->IndexRegs = &((struct src_registers __iomem *) + dev->base)->IndexRegs; + return 0; +} + +static int aac_src_restart_adapter(struct aac_dev *dev, int bled) +{ + u32 var, reset_mask; + + if (bled >= 0) { + if (bled) + printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n", + dev->name, dev->id, bled); + bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS, + 0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL); + if (bled || (var != 0x00000001)) + bled = -EINVAL; + if (dev->supplement_adapter_info.SupportedOptions2 & + AAC_OPTION_DOORBELL_RESET) { + src_writel(dev, MUnit.IDR, reset_mask); + msleep(5000); /* Delay 5 seconds */ + } + } + + if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC) + return -ENODEV; + + if (startup_timeout < 300) + startup_timeout = 300; + + return 0; +} + +/** + * aac_src_select_comm - Select communications method + * @dev: Adapter + * @comm: communications method + */ +int aac_src_select_comm(struct aac_dev *dev, int comm) +{ + switch (comm) { + case AAC_COMM_MESSAGE: + dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; + dev->a_ops.adapter_intr = aac_src_intr_message; + dev->a_ops.adapter_deliver = aac_src_deliver_message; + break; + default: + return 1; + } + return 0; +} + +/** + * aac_src_init - initialize an Cardinal Frey Bar card + * @dev: device to configure + * + */ + +int aac_src_init(struct aac_dev *dev) +{ + unsigned long start; + unsigned long status; + int restart = 0; + int instance = dev->id; + const char *name = dev->name; + + dev->a_ops.adapter_ioremap = aac_src_ioremap; + dev->a_ops.adapter_comm = aac_src_select_comm; + + dev->base_size = AAC_MIN_SRC_BAR0_SIZE; + if (aac_adapter_ioremap(dev, dev->base_size)) { + printk(KERN_WARNING "%s: unable to map adapter.\n", name); + goto error_iounmap; + } + + /* Failure to reset here is an option ... */ + dev->a_ops.adapter_sync_cmd = src_sync_cmd; + dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; + if ((aac_reset_devices || reset_devices) && + !aac_src_restart_adapter(dev, 0)) + ++restart; + /* + * Check to see if the board panic'd while booting. + */ + status = src_readl(dev, MUnit.OMR); + if (status & KERNEL_PANIC) { + if (aac_src_restart_adapter(dev, aac_src_check_health(dev))) + goto error_iounmap; + ++restart; + } + /* + * Check to see if the board failed any self tests. + */ + status = src_readl(dev, MUnit.OMR); + if (status & SELF_TEST_FAILED) { + printk(KERN_ERR "%s%d: adapter self-test failed.\n", + dev->name, instance); + goto error_iounmap; + } + /* + * Check to see if the monitor panic'd while booting. + */ + if (status & MONITOR_PANIC) { + printk(KERN_ERR "%s%d: adapter monitor panic.\n", + dev->name, instance); + goto error_iounmap; + } + start = jiffies; + /* + * Wait for the adapter to be up and running. Wait up to 3 minutes + */ + while (!((status = src_readl(dev, MUnit.OMR)) & + KERNEL_UP_AND_RUNNING)) { + if ((restart && + (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || + time_after(jiffies, start+HZ*startup_timeout)) { + printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", + dev->name, instance, status); + goto error_iounmap; + } + if (!restart && + ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || + time_after(jiffies, start + HZ * + ((startup_timeout > 60) + ? (startup_timeout - 60) + : (startup_timeout / 2))))) { + if (likely(!aac_src_restart_adapter(dev, + aac_src_check_health(dev)))) + start = jiffies; + ++restart; + } + msleep(1); + } + if (restart && aac_commit) + aac_commit = 1; + /* + * Fill in the common function dispatch table. + */ + dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; + dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; + dev->a_ops.adapter_notify = aac_src_notify_adapter; + dev->a_ops.adapter_sync_cmd = src_sync_cmd; + dev->a_ops.adapter_check_health = aac_src_check_health; + dev->a_ops.adapter_restart = aac_src_restart_adapter; + + /* + * First clear out all interrupts. Then enable the one's that we + * can handle. + */ + aac_adapter_comm(dev, AAC_COMM_MESSAGE); + aac_adapter_disable_int(dev); + src_writel(dev, MUnit.ODR_C, 0xffffffff); + aac_adapter_enable_int(dev); + + if (aac_init_adapter(dev) == NULL) + goto error_iounmap; + if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1) + goto error_iounmap; + + dev->msi = aac_msi && !pci_enable_msi(dev->pdev); + + if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, + IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) { + + if (dev->msi) + pci_disable_msi(dev->pdev); + + printk(KERN_ERR "%s%d: Interrupt unavailable.\n", + name, instance); + goto error_iounmap; + } + dev->dbg_base = pci_resource_start(dev->pdev, 2); + dev->dbg_base_mapped = dev->regs.src.bar1; + dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE; + + aac_adapter_enable_int(dev); + /* + * Tell the adapter that all is configured, and it can + * start accepting requests + */ + aac_src_start_adapter(dev); + + return 0; + +error_iounmap: + + return -1; +} -- cgit v1.2.3 From 70c7c88a1a65ca683eb7f3fe3ce79c72f29d845e Mon Sep 17 00:00:00 2001 From: Mike Christie <michaelc@cs.wisc.edu> Date: Thu, 17 Mar 2011 16:22:17 -0500 Subject: [SCSI] libiscsi_tcp: use kmap in xmit path The xmit path can sleep with a page kmapped in the network xmit code while it waits for space to open up, so we have to use kmap instead of kmap atomic in that path. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/libiscsi_tcp.c | 15 +++++++++++++-- include/scsi/libiscsi_tcp.h | 1 + 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c index 8eeb39ffa37f..e98ae33f1295 100644 --- a/drivers/scsi/libiscsi_tcp.c +++ b/drivers/scsi/libiscsi_tcp.c @@ -132,14 +132,25 @@ static void iscsi_tcp_segment_map(struct iscsi_segment *segment, int recv) if (page_count(sg_page(sg)) >= 1 && !recv) return; - segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0); + if (recv) { + segment->atomic_mapped = true; + segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0); + } else { + segment->atomic_mapped = false; + /* the xmit path can sleep with the page mapped so use kmap */ + segment->sg_mapped = kmap(sg_page(sg)); + } + segment->data = segment->sg_mapped + sg->offset + segment->sg_offset; } void iscsi_tcp_segment_unmap(struct iscsi_segment *segment) { if (segment->sg_mapped) { - kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0); + if (segment->atomic_mapped) + kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0); + else + kunmap(sg_page(segment->sg)); segment->sg_mapped = NULL; segment->data = NULL; } diff --git a/include/scsi/libiscsi_tcp.h b/include/scsi/libiscsi_tcp.h index 741ae7ed4394..e6b9fd2eea34 100644 --- a/include/scsi/libiscsi_tcp.h +++ b/include/scsi/libiscsi_tcp.h @@ -47,6 +47,7 @@ struct iscsi_segment { struct scatterlist *sg; void *sg_mapped; unsigned int sg_offset; + bool atomic_mapped; iscsi_segment_done_fn_t *done; }; -- cgit v1.2.3 From 839900c69d5b8a07a4df8e9bd9d1e59a5c556811 Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi <bprakash@broadcom.com> Date: Thu, 17 Mar 2011 17:13:26 -0700 Subject: [SCSI] bnx2fc: Avoid holding cq_lock when iounmap() is called With kernel debugging enabled, holding cq_lock when calling bnx2fc_free_session_resc() which calls iounmap() leads to a warning stack trace [INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected]. iounmap() grabs a HARDIRQ-unsafe vmlist lock, so holding spin_lock_bh(cq_lock) when calling iounmap() will trigger the LOCKDEP warning. Since cq_lock is required only to guard against deletion, hold the lock just before freeing the cq. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/bnx2fc/bnx2fc_tgt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc_tgt.c b/drivers/scsi/bnx2fc/bnx2fc_tgt.c index 7ea93af60260..7cc05e4e82d5 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_tgt.c +++ b/drivers/scsi/bnx2fc/bnx2fc_tgt.c @@ -304,10 +304,8 @@ static void bnx2fc_upload_session(struct fcoe_port *port, " not sent to FW\n"); /* Free session resources */ - spin_lock_bh(&tgt->cq_lock); bnx2fc_free_session_resc(hba, tgt); bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id); - spin_unlock_bh(&tgt->cq_lock); } static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt, @@ -830,11 +828,13 @@ static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba, tgt->rq = NULL; } /* Free CQ */ + spin_lock_bh(&tgt->cq_lock); if (tgt->cq) { dma_free_coherent(&hba->pcidev->dev, tgt->cq_mem_size, tgt->cq, tgt->cq_dma); tgt->cq = NULL; } + spin_unlock_bh(&tgt->cq_lock); /* Free SQ */ if (tgt->sq) { dma_free_coherent(&hba->pcidev->dev, tgt->sq_mem_size, -- cgit v1.2.3 From 6702ca1dffbc864497b6f2c68543aad9bbf0bcee Mon Sep 17 00:00:00 2001 From: Nithin Sujir <nsujir@broadcom.com> Date: Thu, 17 Mar 2011 17:13:27 -0700 Subject: [SCSI] bnx2fc: Remove rtnl_trylock/restart_syscall checks Call rtnl_lock instead of rtnl_trylock & restart_syscall. This is bnx2fc counterpart of fcoe fixes, here is the reference: https://lists.open-fcoe.org/pipermail/devel/2011-March/011199.html Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index e476e8753079..13271a43cd35 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -1432,8 +1432,7 @@ static int bnx2fc_destroy(struct net_device *netdev) struct net_device *phys_dev; int rc = 0; - if (!rtnl_trylock()) - return restart_syscall(); + rtnl_lock(); mutex_lock(&bnx2fc_dev_lock); #ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE @@ -1805,10 +1804,7 @@ static int bnx2fc_disable(struct net_device *netdev) struct ethtool_drvinfo drvinfo; int rc = 0; - if (!rtnl_trylock()) { - printk(KERN_ERR PFX "retrying for rtnl_lock\n"); - return -EIO; - } + rtnl_lock(); mutex_lock(&bnx2fc_dev_lock); @@ -1867,10 +1863,7 @@ static int bnx2fc_enable(struct net_device *netdev) struct ethtool_drvinfo drvinfo; int rc = 0; - if (!rtnl_trylock()) { - printk(KERN_ERR PFX "retrying for rtnl_lock\n"); - return -EIO; - } + rtnl_lock(); BNX2FC_MISC_DBG("Entered %s\n", __func__); mutex_lock(&bnx2fc_dev_lock); @@ -1942,10 +1935,8 @@ static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode) return -EIO; } - if (!rtnl_trylock()) { - printk(KERN_ERR "trying for rtnl_lock\n"); - return -EIO; - } + rtnl_lock(); + mutex_lock(&bnx2fc_dev_lock); #ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE -- cgit v1.2.3 From 0ea5c27583e1cc164bba7ca29fe48a225f52d19b Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi <bprakash@broadcom.com> Date: Thu, 17 Mar 2011 17:13:29 -0700 Subject: [SCSI] bnx2fc: common free list for cleanup commands Cleanup commands are issued to the firmware to cleanup any stuck ios that are supposed to be implicitly aborted. In the worst case we can have all scsi ios filling up the free_list and we may not be able to allocate cleanup tasks. So the driver has to reserve free_list entries to be able to allocate the cleanup tasks. This reserve free_list common to all cpus is allocated as one additional entry in the per cpu free_lists. In bnx2fc_cmd_alloc(), there is a related fix to use get_cpu() for the free_list_index. This will prevent using the wrong index if the CPU is preempted. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/bnx2fc/bnx2fc.h | 15 ++++---- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 +- drivers/scsi/bnx2fc/bnx2fc_io.c | 73 +++++++++++++++++++++++++-------------- 3 files changed, 58 insertions(+), 32 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index df2fc09ba479..464d71ea31aa 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -84,7 +84,9 @@ #define BNX2FC_NUM_MAX_SESS 128 #define BNX2FC_NUM_MAX_SESS_LOG (ilog2(BNX2FC_NUM_MAX_SESS)) -#define BNX2FC_MAX_OUTSTANDING_CMNDS 4096 +#define BNX2FC_MAX_OUTSTANDING_CMNDS 2048 +#define BNX2FC_CAN_QUEUE BNX2FC_MAX_OUTSTANDING_CMNDS +#define BNX2FC_ELSTM_XIDS BNX2FC_CAN_QUEUE #define BNX2FC_MIN_PAYLOAD 256 #define BNX2FC_MAX_PAYLOAD 2048 @@ -98,7 +100,8 @@ #define BNX2FC_CONFQ_WQE_SIZE (sizeof(struct fcoe_confqe)) #define BNX2FC_5771X_DB_PAGE_SIZE 128 -#define BNX2FC_MAX_TASKS BNX2FC_MAX_OUTSTANDING_CMNDS +#define BNX2FC_MAX_TASKS \ + (BNX2FC_MAX_OUTSTANDING_CMNDS + BNX2FC_ELSTM_XIDS) #define BNX2FC_TASK_SIZE 128 #define BNX2FC_TASKS_PER_PAGE (PAGE_SIZE/BNX2FC_TASK_SIZE) #define BNX2FC_TASK_CTX_ARR_SZ (BNX2FC_MAX_TASKS/BNX2FC_TASKS_PER_PAGE) @@ -112,10 +115,10 @@ #define BNX2FC_WRITE (1 << 0) #define BNX2FC_MIN_XID 0 -#define BNX2FC_MAX_XID (BNX2FC_MAX_OUTSTANDING_CMNDS - 1) -#define FCOE_MIN_XID (BNX2FC_MAX_OUTSTANDING_CMNDS) -#define FCOE_MAX_XID \ - (BNX2FC_MAX_OUTSTANDING_CMNDS + (nr_cpu_ids * 256)) +#define BNX2FC_MAX_XID \ + (BNX2FC_MAX_OUTSTANDING_CMNDS + BNX2FC_ELSTM_XIDS - 1) +#define FCOE_MIN_XID (BNX2FC_MAX_XID + 1) +#define FCOE_MAX_XID (FCOE_MIN_XID + 4095) #define BNX2FC_MAX_LUN 0xFFFF #define BNX2FC_MAX_FCP_TGT 256 #define BNX2FC_MAX_CMD_LEN 16 diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 13271a43cd35..90cd632eed91 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2497,7 +2497,7 @@ static struct scsi_host_template bnx2fc_shost_template = { .change_queue_type = fc_change_queue_type, .this_id = -1, .cmd_per_lun = 3, - .can_queue = (BNX2FC_MAX_OUTSTANDING_CMNDS/2), + .can_queue = BNX2FC_CAN_QUEUE, .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, .max_sectors = 512, diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c index 0f1dd23730db..d3fc302c241a 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_io.c +++ b/drivers/scsi/bnx2fc/bnx2fc_io.c @@ -11,6 +11,9 @@ */ #include "bnx2fc.h" + +#define RESERVE_FREE_LIST_INDEX num_possible_cpus() + static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len, int bd_index); static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req); @@ -242,8 +245,9 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba, u32 mem_size; u16 xid; int i; - int num_ios; + int num_ios, num_pri_ios; size_t bd_tbl_sz; + int arr_sz = num_possible_cpus() + 1; if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) { printk(KERN_ERR PFX "cmd_mgr_alloc: Invalid min_xid 0x%x \ @@ -263,14 +267,14 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba, } cmgr->free_list = kzalloc(sizeof(*cmgr->free_list) * - num_possible_cpus(), GFP_KERNEL); + arr_sz, GFP_KERNEL); if (!cmgr->free_list) { printk(KERN_ERR PFX "failed to alloc free_list\n"); goto mem_err; } cmgr->free_list_lock = kzalloc(sizeof(*cmgr->free_list_lock) * - num_possible_cpus(), GFP_KERNEL); + arr_sz, GFP_KERNEL); if (!cmgr->free_list_lock) { printk(KERN_ERR PFX "failed to alloc free_list_lock\n"); goto mem_err; @@ -279,13 +283,18 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba, cmgr->hba = hba; cmgr->cmds = (struct bnx2fc_cmd **)(cmgr + 1); - for (i = 0; i < num_possible_cpus(); i++) { + for (i = 0; i < arr_sz; i++) { INIT_LIST_HEAD(&cmgr->free_list[i]); spin_lock_init(&cmgr->free_list_lock[i]); } - /* Pre-allocated pool of bnx2fc_cmds */ + /* + * Pre-allocated pool of bnx2fc_cmds. + * Last entry in the free list array is the free list + * of slow path requests. + */ xid = BNX2FC_MIN_XID; + num_pri_ios = num_ios - BNX2FC_ELSTM_XIDS; for (i = 0; i < num_ios; i++) { io_req = kzalloc(sizeof(*io_req), GFP_KERNEL); @@ -298,11 +307,13 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba, INIT_DELAYED_WORK(&io_req->timeout_work, bnx2fc_cmd_timeout); io_req->xid = xid++; - if (io_req->xid >= BNX2FC_MAX_OUTSTANDING_CMNDS) - printk(KERN_ERR PFX "ERROR allocating xids - 0x%x\n", - io_req->xid); - list_add_tail(&io_req->link, - &cmgr->free_list[io_req->xid % num_possible_cpus()]); + if (i < num_pri_ios) + list_add_tail(&io_req->link, + &cmgr->free_list[io_req->xid % + num_possible_cpus()]); + else + list_add_tail(&io_req->link, + &cmgr->free_list[num_possible_cpus()]); io_req++; } @@ -389,7 +400,7 @@ free_cmd_pool: if (!cmgr->free_list) goto free_cmgr; - for (i = 0; i < num_possible_cpus(); i++) { + for (i = 0; i < num_possible_cpus() + 1; i++) { struct list_head *list; struct list_head *tmp; @@ -413,6 +424,7 @@ struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type) struct bnx2fc_cmd *io_req; struct list_head *listp; struct io_bdt *bd_tbl; + int index = RESERVE_FREE_LIST_INDEX; u32 max_sqes; u16 xid; @@ -432,26 +444,26 @@ struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type) * NOTE: Free list insertions and deletions are protected with * cmgr lock */ - spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); - if ((list_empty(&(cmd_mgr->free_list[smp_processor_id()]))) || + spin_lock_bh(&cmd_mgr->free_list_lock[index]); + if ((list_empty(&(cmd_mgr->free_list[index]))) || (tgt->num_active_ios.counter >= max_sqes)) { BNX2FC_TGT_DBG(tgt, "No free els_tm cmds available " "ios(%d):sqes(%d)\n", tgt->num_active_ios.counter, tgt->max_sqes); - if (list_empty(&(cmd_mgr->free_list[smp_processor_id()]))) + if (list_empty(&(cmd_mgr->free_list[index]))) printk(KERN_ERR PFX "elstm_alloc: list_empty\n"); - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); return NULL; } listp = (struct list_head *) - cmd_mgr->free_list[smp_processor_id()].next; + cmd_mgr->free_list[index].next; list_del_init(listp); io_req = (struct bnx2fc_cmd *) listp; xid = io_req->xid; cmd_mgr->cmds[xid] = io_req; atomic_inc(&tgt->num_active_ios); - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); INIT_LIST_HEAD(&io_req->link); @@ -479,27 +491,30 @@ static struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt) struct io_bdt *bd_tbl; u32 max_sqes; u16 xid; + int index = get_cpu(); max_sqes = BNX2FC_SCSI_MAX_SQES; /* * NOTE: Free list insertions and deletions are protected with * cmgr lock */ - spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); - if ((list_empty(&cmd_mgr->free_list[smp_processor_id()])) || + spin_lock_bh(&cmd_mgr->free_list_lock[index]); + if ((list_empty(&cmd_mgr->free_list[index])) || (tgt->num_active_ios.counter >= max_sqes)) { - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); + put_cpu(); return NULL; } listp = (struct list_head *) - cmd_mgr->free_list[smp_processor_id()].next; + cmd_mgr->free_list[index].next; list_del_init(listp); io_req = (struct bnx2fc_cmd *) listp; xid = io_req->xid; cmd_mgr->cmds[xid] = io_req; atomic_inc(&tgt->num_active_ios); - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); + put_cpu(); INIT_LIST_HEAD(&io_req->link); @@ -522,8 +537,15 @@ void bnx2fc_cmd_release(struct kref *ref) struct bnx2fc_cmd *io_req = container_of(ref, struct bnx2fc_cmd, refcount); struct bnx2fc_cmd_mgr *cmd_mgr = io_req->cmd_mgr; + int index; + + if (io_req->cmd_type == BNX2FC_SCSI_CMD) + index = io_req->xid % num_possible_cpus(); + else + index = RESERVE_FREE_LIST_INDEX; - spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + + spin_lock_bh(&cmd_mgr->free_list_lock[index]); if (io_req->cmd_type != BNX2FC_SCSI_CMD) bnx2fc_free_mp_resc(io_req); cmd_mgr->cmds[io_req->xid] = NULL; @@ -531,9 +553,10 @@ void bnx2fc_cmd_release(struct kref *ref) list_del_init(&io_req->link); /* Add it to the free list */ list_add(&io_req->link, - &cmd_mgr->free_list[smp_processor_id()]); + &cmd_mgr->free_list[index]); atomic_dec(&io_req->tgt->num_active_ios); - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); + } static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req) -- cgit v1.2.3 From 686959736a8543265930c8d777a73b052bc57f87 Mon Sep 17 00:00:00 2001 From: Nithin Sujir <nsujir@broadcom.com> Date: Thu, 17 Mar 2011 17:13:31 -0700 Subject: [SCSI] bnx2fc: Call bnx2fc_return_rqe and bnx2fc_get_next_rqe with tgt lock held tgt lock is needed during - bnx2fc_return_rqe to protect the rq_prod_idx. bnx2fc_get_next_rqe to protect rq_cons_idx Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/bnx2fc/bnx2fc_hwi.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c index 4f4096836742..3de1ce73bdd3 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c +++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c @@ -590,7 +590,10 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ; + spin_lock_bh(&tgt->tgt_lock); rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq); + spin_unlock_bh(&tgt->tgt_lock); + if (rq_data) { buf = rq_data; } else { @@ -603,8 +606,10 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) } for (i = 0; i < num_rq; i++) { + spin_lock_bh(&tgt->tgt_lock); rq_data = (unsigned char *) bnx2fc_get_next_rqe(tgt, 1); + spin_unlock_bh(&tgt->tgt_lock); len = BNX2FC_RQ_BUF_SZ; memcpy(buf1, rq_data, len); buf1 += len; @@ -615,13 +620,15 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) if (buf != rq_data) kfree(buf); + spin_lock_bh(&tgt->tgt_lock); bnx2fc_return_rqe(tgt, num_rq); + spin_unlock_bh(&tgt->tgt_lock); break; case FCOE_ERROR_DETECTION_CQE_TYPE: /* - *In case of error reporting CQE a single RQ entry - * is consumes. + * In case of error reporting CQE a single RQ entry + * is consumed. */ spin_lock_bh(&tgt->tgt_lock); num_rq = 1; @@ -705,6 +712,7 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) *In case of warning reporting CQE a single RQ entry * is consumes. */ + spin_lock_bh(&tgt->tgt_lock); num_rq = 1; err_entry = (struct fcoe_err_report_entry *) bnx2fc_get_next_rqe(tgt, 1); @@ -717,6 +725,7 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) err_entry->tx_buf_off, err_entry->rx_buf_off); bnx2fc_return_rqe(tgt, 1); + spin_unlock_bh(&tgt->tgt_lock); break; default: -- cgit v1.2.3 From 26ce67c3df46a8253e3bbf3eb87cc6782f6a6c91 Mon Sep 17 00:00:00 2001 From: Michael Chan <mchan@broadcom.com> Date: Thu, 17 Mar 2011 17:13:32 -0700 Subject: [SCSI] bnx2fc: Remove network bonding checking bnx2fc only operates on bnx2x hardware devices and not master bonding devices, so there is no need to check for bonding. Even if the bnx2x device is "enslaved" into a bonding device, FCoE is unaffected as it has its own MAC address and queues. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 90cd632eed91..0eec4e092554 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -1095,13 +1095,6 @@ static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba) struct netdev_hw_addr *ha; int sel_san_mac = 0; - /* Do not support for bonding device */ - if ((netdev->priv_flags & IFF_MASTER_ALB) || - (netdev->priv_flags & IFF_SLAVE_INACTIVE) || - (netdev->priv_flags & IFF_MASTER_8023AD)) { - return -EOPNOTSUPP; - } - /* setup Source MAC Address */ rcu_read_lock(); for_each_dev_addr(physdev, ha) { -- cgit v1.2.3 From 1294bfe60960c89a0c875cffb90c3bacf1d675d2 Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi <bprakash@broadcom.com> Date: Thu, 17 Mar 2011 17:13:34 -0700 Subject: [SCSI] bnx2fc: Fix MTU issue by using static MTU bnx2x now uses seperate MTUs for networking and FCoE. FCoE MTU is fixed to 2500 and bnx2fc now needs to match this logic by using FCOE_MTU instead of netdev->mtu. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/bnx2fc/bnx2fc.h | 5 ++++- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 35 +---------------------------------- drivers/scsi/bnx2fc/bnx2fc_hwi.c | 2 +- 3 files changed, 6 insertions(+), 36 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index 464d71ea31aa..d869a4ce7eac 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -89,6 +89,10 @@ #define BNX2FC_ELSTM_XIDS BNX2FC_CAN_QUEUE #define BNX2FC_MIN_PAYLOAD 256 #define BNX2FC_MAX_PAYLOAD 2048 +#define BNX2FC_MFS \ + (BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header)) +#define BNX2FC_MINI_JUMBO_MTU 2500 + #define BNX2FC_RQ_BUF_SZ 256 #define BNX2FC_RQ_BUF_LOG_SZ (ilog2(BNX2FC_RQ_BUF_SZ)) @@ -128,7 +132,6 @@ #define BNX2FC_WAIT_CNT 120 #define BNX2FC_FW_TIMEOUT (3 * HZ) - #define PORT_MAX 2 #define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status) diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 0eec4e092554..aab55e24cb7b 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -661,31 +661,6 @@ static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev) return 0; } -static int bnx2fc_mfs_update(struct fc_lport *lport) -{ - struct fcoe_port *port = lport_priv(lport); - struct bnx2fc_hba *hba = port->priv; - struct net_device *netdev = hba->netdev; - u32 mfs; - u32 max_mfs; - - mfs = netdev->mtu - (sizeof(struct fcoe_hdr) + - sizeof(struct fcoe_crc_eof)); - max_mfs = BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header); - BNX2FC_HBA_DBG(lport, "mfs = %d, max_mfs = %d\n", mfs, max_mfs); - if (mfs > max_mfs) - mfs = max_mfs; - - /* Adjust mfs to be a multiple of 256 bytes */ - mfs = (((mfs - sizeof(struct fc_frame_header)) / BNX2FC_MIN_PAYLOAD) * - BNX2FC_MIN_PAYLOAD); - mfs = mfs + sizeof(struct fc_frame_header); - - BNX2FC_HBA_DBG(lport, "Set MFS = %d\n", mfs); - if (fc_set_mfs(lport, mfs)) - return -EINVAL; - return 0; -} static void bnx2fc_link_speed_update(struct fc_lport *lport) { struct fcoe_port *port = lport_priv(lport); @@ -754,7 +729,7 @@ static int bnx2fc_net_config(struct fc_lport *lport) !hba->phys_dev->ethtool_ops->get_pauseparam) return -EOPNOTSUPP; - if (bnx2fc_mfs_update(lport)) + if (fc_set_mfs(lport, BNX2FC_MFS)) return -EINVAL; skb_queue_head_init(&port->fcoe_pending_queue); @@ -825,14 +800,6 @@ static void bnx2fc_indicate_netevent(void *context, unsigned long event) if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) printk(KERN_ERR "indicate_netevent: "\ "adapter is not UP!!\n"); - /* fall thru to update mfs if MTU has changed */ - case NETDEV_CHANGEMTU: - BNX2FC_HBA_DBG(lport, "NETDEV_CHANGEMTU event\n"); - bnx2fc_mfs_update(lport); - mutex_lock(&lport->lp_mutex); - list_for_each_entry(vport, &lport->vports, list) - bnx2fc_mfs_update(vport); - mutex_unlock(&lport->lp_mutex); break; case NETDEV_DOWN: diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c index 3de1ce73bdd3..1b680e288c56 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c +++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c @@ -87,7 +87,7 @@ int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba) fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma; fcoe_init1.task_list_pbl_addr_hi = (u32) ((u64) hba->task_ctx_bd_dma >> 32); - fcoe_init1.mtu = hba->netdev->mtu; + fcoe_init1.mtu = BNX2FC_MINI_JUMBO_MTU; fcoe_init1.flags = (PAGE_SHIFT << FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT); -- cgit v1.2.3 From c94460fd29a9893eb677d2e0831a247a185c7a22 Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi <bprakash@broadcom.com> Date: Thu, 17 Mar 2011 17:13:35 -0700 Subject: [SCSI] bnx2fc: Remove unnecessary module state checks The check for module state MODULE_STATE_LIVE is no longer required for LLDs, as libfcoe transport takes care of it. Reference: http://marc.info/?l=linux-scsi&m=129989565903046&w=2 Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 23 ----------------------- 1 file changed, 23 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index aab55e24cb7b..38a00fe10bd7 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -1395,12 +1395,6 @@ static int bnx2fc_destroy(struct net_device *netdev) rtnl_lock(); mutex_lock(&bnx2fc_dev_lock); -#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE - if (THIS_MODULE->state != MODULE_STATE_LIVE) { - rc = -ENODEV; - goto netdev_err; - } -#endif /* obtain physical netdev */ if (netdev->priv_flags & IFF_802_1Q_VLAN) phys_dev = vlan_dev_real_dev(netdev); @@ -1768,11 +1762,6 @@ static int bnx2fc_disable(struct net_device *netdev) mutex_lock(&bnx2fc_dev_lock); - if (THIS_MODULE->state != MODULE_STATE_LIVE) { - rc = -ENODEV; - goto nodev; - } - /* obtain physical netdev */ if (netdev->priv_flags & IFF_802_1Q_VLAN) phys_dev = vlan_dev_real_dev(netdev); @@ -1828,11 +1817,6 @@ static int bnx2fc_enable(struct net_device *netdev) BNX2FC_MISC_DBG("Entered %s\n", __func__); mutex_lock(&bnx2fc_dev_lock); - if (THIS_MODULE->state != MODULE_STATE_LIVE) { - rc = -ENODEV; - goto nodev; - } - /* obtain physical netdev */ if (netdev->priv_flags & IFF_802_1Q_VLAN) phys_dev = vlan_dev_real_dev(netdev); @@ -1899,13 +1883,6 @@ static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode) mutex_lock(&bnx2fc_dev_lock); -#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE - if (THIS_MODULE->state != MODULE_STATE_LIVE) { - rc = -ENODEV; - goto mod_err; - } -#endif - if (!try_module_get(THIS_MODULE)) { rc = -EINVAL; goto mod_err; -- cgit v1.2.3 From d9f7f37b90e7b0180961cb6567ae423ac3757db8 Mon Sep 17 00:00:00 2001 From: Nithin Sujir <nsujir@broadcom.com> Date: Thu, 17 Mar 2011 17:13:37 -0700 Subject: [SCSI] bnx2fc: Bump version to 1.0.1 Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/bnx2fc/bnx2fc.h | 2 +- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index d869a4ce7eac..b6d350ac4288 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -62,7 +62,7 @@ #include "bnx2fc_constants.h" #define BNX2FC_NAME "bnx2fc" -#define BNX2FC_VERSION "1.0.0" +#define BNX2FC_VERSION "1.0.1" #define PFX "bnx2fc: " diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 38a00fe10bd7..2056890b437a 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -21,7 +21,7 @@ DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu); #define DRV_MODULE_NAME "bnx2fc" #define DRV_MODULE_VERSION BNX2FC_VERSION -#define DRV_MODULE_RELDATE "Jan 25, 2011" +#define DRV_MODULE_RELDATE "Mar 17, 2011" static char version[] __devinitdata = -- cgit v1.2.3 From 8c3adc796f32fa4878ec843f8960717ba377e024 Mon Sep 17 00:00:00 2001 From: James Bottomley <James.Bottomley@suse.de> Date: Fri, 18 Mar 2011 11:24:23 -0400 Subject: [SCSI] ses: add subenclosure support There have been many complaints that an enclosure with subenclosures isn't attached to by the ses driver. Until now, though, no-one had been willing to provide access to one. Subenclosures are added simply by flattening the tree (i.e. all subenclosure devices show up under the one main device). This may have consequences if the naming is only unique per subenclosure, but that's a bug for another day. The tested array had no page 7, so no device naming at all. It also only had the disk devices on one of its subenclosures (all the others had power, fans, temperature and various sensors), so testing of this is fairly rudimentary. Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/ses.c | 44 +++++++++++++++++++++++++------------------- 1 file changed, 25 insertions(+), 19 deletions(-) diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 3b00e907b917..eb7a3e85304f 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -35,9 +35,11 @@ struct ses_device { unsigned char *page1; + unsigned char *page1_types; unsigned char *page2; unsigned char *page10; short page1_len; + short page1_num_types; short page2_len; short page10_len; }; @@ -110,12 +112,12 @@ static int ses_set_page2_descriptor(struct enclosure_device *edev, int i, j, count = 0, descriptor = ecomp->number; struct scsi_device *sdev = to_scsi_device(edev->edev.parent); struct ses_device *ses_dev = edev->scratch; - unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11]; + unsigned char *type_ptr = ses_dev->page1_types; unsigned char *desc_ptr = ses_dev->page2 + 8; /* Clear everything */ memset(desc_ptr, 0, ses_dev->page2_len - 8); - for (i = 0; i < ses_dev->page1[10]; i++, type_ptr += 4) { + for (i = 0; i < ses_dev->page1_num_types; i++, type_ptr += 4) { for (j = 0; j < type_ptr[1]; j++) { desc_ptr += 4; if (type_ptr[0] != ENCLOSURE_COMPONENT_DEVICE && @@ -140,12 +142,12 @@ static unsigned char *ses_get_page2_descriptor(struct enclosure_device *edev, int i, j, count = 0, descriptor = ecomp->number; struct scsi_device *sdev = to_scsi_device(edev->edev.parent); struct ses_device *ses_dev = edev->scratch; - unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11]; + unsigned char *type_ptr = ses_dev->page1_types; unsigned char *desc_ptr = ses_dev->page2 + 8; ses_recv_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len); - for (i = 0; i < ses_dev->page1[10]; i++, type_ptr += 4) { + for (i = 0; i < ses_dev->page1_num_types; i++, type_ptr += 4) { for (j = 0; j < type_ptr[1]; j++) { desc_ptr += 4; if (type_ptr[0] != ENCLOSURE_COMPONENT_DEVICE && @@ -358,7 +360,7 @@ static void ses_enclosure_data_process(struct enclosure_device *edev, unsigned char *buf = NULL, *type_ptr, *desc_ptr, *addl_desc_ptr = NULL; int i, j, page7_len, len, components; struct ses_device *ses_dev = edev->scratch; - int types = ses_dev->page1[10]; + int types = ses_dev->page1_num_types; unsigned char *hdr_buf = kzalloc(INIT_ALLOC_SIZE, GFP_KERNEL); if (!hdr_buf) @@ -393,7 +395,7 @@ static void ses_enclosure_data_process(struct enclosure_device *edev, } if (ses_dev->page10) addl_desc_ptr = ses_dev->page10 + 8; - type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11]; + type_ptr = ses_dev->page1_types; components = 0; for (i = 0; i < types; i++, type_ptr += 4) { for (j = 0; j < type_ptr[1]; j++) { @@ -503,6 +505,7 @@ static int ses_intf_add(struct device *cdev, u32 result; int i, types, len, components = 0; int err = -ENOMEM; + int num_enclosures; struct enclosure_device *edev; struct ses_component *scomp = NULL; @@ -530,16 +533,6 @@ static int ses_intf_add(struct device *cdev, if (result) goto recv_failed; - if (hdr_buf[1] != 0) { - /* FIXME: need subenclosure support; I've just never - * seen a device with subenclosures and it makes the - * traversal routines more complex */ - sdev_printk(KERN_ERR, sdev, - "FIXME driver has no support for subenclosures (%d)\n", - hdr_buf[1]); - goto err_free; - } - len = (hdr_buf[2] << 8) + hdr_buf[3] + 4; buf = kzalloc(len, GFP_KERNEL); if (!buf) @@ -549,11 +542,24 @@ static int ses_intf_add(struct device *cdev, if (result) goto recv_failed; - types = buf[10]; + types = 0; - type_ptr = buf + 12 + buf[11]; + /* we always have one main enclosure and the rest are referred + * to as secondary subenclosures */ + num_enclosures = buf[1] + 1; - for (i = 0; i < types; i++, type_ptr += 4) { + /* begin at the enclosure descriptor */ + type_ptr = buf + 8; + /* skip all the enclosure descriptors */ + for (i = 0; i < num_enclosures && type_ptr < buf + len; i++) { + types += type_ptr[2]; + type_ptr += type_ptr[3] + 4; + } + + ses_dev->page1_types = type_ptr; + ses_dev->page1_num_types = types; + + for (i = 0; i < types && type_ptr < buf + len; i++, type_ptr += 4) { if (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE || type_ptr[0] == ENCLOSURE_COMPONENT_ARRAY_DEVICE) components += type_ptr[1]; -- cgit v1.2.3 From 9640de2099a3c7936b65bf3a45e67a324de950c8 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Date: Mon, 21 Mar 2011 03:34:24 -0700 Subject: [SCSI] qla4xxx: cleanup qla4xxx_initialize_ddb_list() Remove process all aen code from qla4xxx_initialize_ddb_list() as DPC activities should be done in DPC only. Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_init.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 1629c48c35ef..22fc57e2bc05 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -1013,13 +1013,6 @@ static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha) if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR) return status; - /* - * Targets can come online after the inital discovery, so processing - * the aens here will catch them. - */ - if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) - qla4xxx_process_aen(ha, PROCESS_ALL_AENS); - return status; } -- cgit v1.2.3 From 99b53bf50cc4711a3c82dfc704911ff738a41758 Mon Sep 17 00:00:00 2001 From: Prasanna Mumbai <prasanna.mumbai@qlogic.com> Date: Mon, 21 Mar 2011 03:34:25 -0700 Subject: [SCSI] qla4xxx: Do not send mbox command if FW is in failed state FW is not able to process mbox command if FW state is failed. This will cause mbox command to timeout and adapter reset. We have separate function to detect FW failed state and do adapter reset. So to avoid mbox command timeout, do not process mbox command in case of FW state failed. Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Prasanna Mumbai <prasanna.mumbai@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_mbx.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index f65626aec7c1..47b259190b5a 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -32,6 +32,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, u_long wait_count; uint32_t intr_status; unsigned long flags = 0; + uint32_t dev_state; /* Make sure that pointers are valid */ if (!mbx_cmd || !mbx_sts) { @@ -40,12 +41,23 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, return status; } - if (is_qla8022(ha) && - test_bit(AF_FW_RECOVERY, &ha->flags)) { - DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: prematurely " - "completing mbx cmd as firmware recovery detected\n", - ha->host_no, __func__)); - return status; + if (is_qla8022(ha)) { + if (test_bit(AF_FW_RECOVERY, &ha->flags)) { + DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: " + "prematurely completing mbx cmd as firmware " + "recovery detected\n", ha->host_no, __func__)); + return status; + } + /* Do not send any mbx cmd if h/w is in failed state*/ + qla4_8xxx_idc_lock(ha); + dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); + qla4_8xxx_idc_unlock(ha); + if (dev_state == QLA82XX_DEV_FAILED) { + ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: H/W is in " + "failed state, do not send any mailbox commands\n", + ha->host_no, __func__); + return status; + } } if ((is_aer_supported(ha)) && -- cgit v1.2.3 From f9880e76fd15795b5917b20f54eeca764b0f3ccb Mon Sep 17 00:00:00 2001 From: Prasanna Mumbai <prasanna.mumbai@qlogic.com> Date: Mon, 21 Mar 2011 03:34:26 -0700 Subject: [SCSI] qla4xxx: Do not retry ISP82XX initialization if H/W state is failed Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Prasanna Mumbai <prasanna.mumbai@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_os.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 967836ef5ab2..409b20d62ef5 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1630,6 +1630,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, uint8_t init_retry_count = 0; char buf[34]; struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; + uint32_t dev_state; if (pci_enable_device(pdev)) return -1; @@ -1713,6 +1714,18 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST); while ((!test_bit(AF_ONLINE, &ha->flags)) && init_retry_count++ < MAX_INIT_RETRIES) { + + if (is_qla8022(ha)) { + qla4_8xxx_idc_lock(ha); + dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); + qla4_8xxx_idc_unlock(ha); + if (dev_state == QLA82XX_DEV_FAILED) { + ql4_printk(KERN_WARNING, ha, "%s: don't retry " + "initialize adapter. H/W is in failed state\n", + __func__); + break; + } + } DEBUG2(printk("scsi: %s: retrying adapter initialization " "(%d)\n", __func__, init_retry_count)); -- cgit v1.2.3 From 7edd9a7b28f57d8a5bcdb1a0def2aa09d1dd49d4 Mon Sep 17 00:00:00 2001 From: Karen Higgins <karen.higgins@qlogic.com> Date: Mon, 21 Mar 2011 03:34:27 -0700 Subject: [SCSI] qla4xxx: cleanup DDB relogin logic during initialization Driver has capability to add device dynamically and present them to OS, driver no longer need to wait for DDBs to come online during driver initialization. Driver still issues a relogin for DDBs that are not online, but no longer wait for DDB to come online. Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Karen Higgins <karen.higgins@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_def.h | 5 -- drivers/scsi/qla4xxx/ql4_glbl.h | 1 - drivers/scsi/qla4xxx/ql4_init.c | 183 +++++++--------------------------------- drivers/scsi/qla4xxx/ql4_isr.c | 29 +------ drivers/scsi/qla4xxx/ql4_mbx.c | 3 - drivers/scsi/qla4xxx/ql4_os.c | 4 - 6 files changed, 33 insertions(+), 192 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index 2fc0045b1a52..b46d0dc9a48e 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -233,9 +233,6 @@ struct ddb_entry { unsigned long flags; /* DDB Flags */ - unsigned long dev_scan_wait_to_start_relogin; - unsigned long dev_scan_wait_to_complete_relogin; - uint16_t fw_ddb_index; /* DDB firmware index */ uint16_t options; uint32_t fw_ddb_device_state; /* F/W Device State -- see ql4_fw.h */ @@ -479,7 +476,6 @@ struct scsi_qla_host { uint32_t timer_active; /* Recovery Timers */ - uint32_t discovery_wait; atomic_t check_relogin_timeouts; uint32_t retry_reset_ha_cnt; uint32_t isp_reset_timer; /* reset test timer */ @@ -765,6 +761,5 @@ static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a) /* Defines for process_aen() */ #define PROCESS_ALL_AENS 0 #define FLUSH_DDB_CHANGED_AENS 1 -#define RELOGIN_DDB_CHANGED_AENS 2 #endif /*_QLA4XXX_H */ diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h index 8fad99b7eef4..cc53e3fbd78c 100644 --- a/drivers/scsi/qla4xxx/ql4_glbl.h +++ b/drivers/scsi/qla4xxx/ql4_glbl.h @@ -136,7 +136,6 @@ void qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha); void qla4_8xxx_set_drv_active(struct scsi_qla_host *ha); extern int ql4xextended_error_logging; -extern int ql4xdiscoverywait; extern int ql4xdontresethba; extern int ql4xenablemsix; diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 22fc57e2bc05..bf1c30b17a82 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -723,13 +723,38 @@ int qla4_is_relogin_allowed(struct scsi_qla_host *ha, uint32_t conn_err) return relogin; } +static void qla4xxx_flush_AENS(struct scsi_qla_host *ha) +{ + unsigned long wtime; + + /* Flush the 0x8014 AEN from the firmware as a result of + * Auto connect. We are basically doing get_firmware_ddb() + * to determine whether we need to log back in or not. + * Trying to do a set ddb before we have processed 0x8014 + * will result in another set_ddb() for the same ddb. In other + * words there will be stale entries in the aen_q. + */ + wtime = jiffies + (2 * HZ); + do { + if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) + if (ha->firmware_state & (BIT_2 | BIT_0)) + return; + + if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) + qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); + + msleep(1000); + } while (!time_after_eq(jiffies, wtime)); +} + /** - * qla4xxx_configure_ddbs - builds driver ddb list + * qla4xxx_build_ddb_list - builds driver ddb list * @ha: Pointer to host adapter structure. * * This routine searches for all valid firmware ddb entries and builds * an internal ddb list. Ddbs that are considered valid are those with * a device state of SESSION_ACTIVE. + * A relogin (set_ddb) is issued for DDBs that are not online. **/ static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha) { @@ -744,6 +769,8 @@ static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha) uint32_t ipv6_device; uint32_t new_tgt; + qla4xxx_flush_AENS(ha); + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (fw_ddb_entry == NULL) { @@ -847,144 +874,6 @@ exit_build_ddb_list_no_free: return status; } -struct qla4_relog_scan { - int halt_wait; - uint32_t conn_err; - uint32_t fw_ddb_index; - uint32_t next_fw_ddb_index; - uint32_t fw_ddb_device_state; -}; - -static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs) -{ - struct ddb_entry *ddb_entry; - - if (qla4_is_relogin_allowed(ha, rs->conn_err)) { - /* We either have a device that is in - * the process of relogging in or a - * device that is waiting to be - * relogged in */ - rs->halt_wait = 0; - - ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, - rs->fw_ddb_index); - if (ddb_entry == NULL) - return QLA_ERROR; - - if (ddb_entry->dev_scan_wait_to_start_relogin != 0 - && time_after_eq(jiffies, - ddb_entry-> - dev_scan_wait_to_start_relogin)) - { - ddb_entry->dev_scan_wait_to_start_relogin = 0; - qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0); - } - } - return QLA_SUCCESS; -} - -static int qla4_scan_for_relogin(struct scsi_qla_host *ha, - struct qla4_relog_scan *rs) -{ - int error; - - /* scan for relogins - * ----------------- */ - for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES; - rs->fw_ddb_index = rs->next_fw_ddb_index) { - if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0, - NULL, &rs->next_fw_ddb_index, - &rs->fw_ddb_device_state, - &rs->conn_err, NULL, NULL) - == QLA_ERROR) - return QLA_ERROR; - - if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS) - rs->halt_wait = 0; - - if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED || - rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) { - error = qla4_test_rdy(ha, rs); - if (error) - return error; - } - - /* We know we've reached the last device when - * next_fw_ddb_index is 0 */ - if (rs->next_fw_ddb_index == 0) - break; - } - return QLA_SUCCESS; -} - -/** - * qla4xxx_devices_ready - wait for target devices to be logged in - * @ha: pointer to adapter structure - * - * This routine waits up to ql4xdiscoverywait seconds - * F/W database during driver load time. - **/ -static int qla4xxx_devices_ready(struct scsi_qla_host *ha) -{ - int error; - unsigned long discovery_wtime; - struct qla4_relog_scan rs; - - discovery_wtime = jiffies + (ql4xdiscoverywait * HZ); - - DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait)); - do { - /* poll for AEN. */ - qla4xxx_get_firmware_state(ha); - if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) { - /* Set time-between-relogin timer */ - qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS); - } - - /* if no relogins active or needed, halt discvery wait */ - rs.halt_wait = 1; - - error = qla4_scan_for_relogin(ha, &rs); - - if (rs.halt_wait) { - DEBUG2(printk("scsi%ld: %s: Delay halted. Devices " - "Ready.\n", ha->host_no, __func__)); - return QLA_SUCCESS; - } - - msleep(2000); - } while (!time_after_eq(jiffies, discovery_wtime)); - - DEBUG3(qla4xxx_get_conn_event_log(ha)); - - return QLA_SUCCESS; -} - -static void qla4xxx_flush_AENS(struct scsi_qla_host *ha) -{ - unsigned long wtime; - - /* Flush the 0x8014 AEN from the firmware as a result of - * Auto connect. We are basically doing get_firmware_ddb() - * to determine whether we need to log back in or not. - * Trying to do a set ddb before we have processed 0x8014 - * will result in another set_ddb() for the same ddb. In other - * words there will be stale entries in the aen_q. - */ - wtime = jiffies + (2 * HZ); - do { - if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) - if (ha->firmware_state & (BIT_2 | BIT_0)) - return; - - if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) - qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); - - msleep(1000); - } while (!time_after_eq(jiffies, wtime)); - -} - static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha) { uint16_t fw_ddb_index; @@ -996,22 +885,12 @@ static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha) for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++) ha->fw_ddb_index_map[fw_ddb_index] = - (struct ddb_entry *)INVALID_ENTRY; + (struct ddb_entry *)INVALID_ENTRY; ha->tot_ddbs = 0; - qla4xxx_flush_AENS(ha); - - /* Wait for an AEN */ - qla4xxx_devices_ready(ha); - - /* - * First perform device discovery for active - * fw ddb indexes and build - * ddb list. - */ - if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR) - return status; + /* Perform device discovery and build ddb list. */ + status = qla4xxx_build_ddb_list(ha); return status; } diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c index 03e028e6e809..2ef1a986f5c0 100644 --- a/drivers/scsi/qla4xxx/ql4_isr.c +++ b/drivers/scsi/qla4xxx/ql4_isr.c @@ -1008,34 +1008,9 @@ void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen) mbox_sts[0], mbox_sts[2], mbox_sts[3])); break; - } else if (process_aen == RELOGIN_DDB_CHANGED_AENS) { - /* for use during init time, we only want to - * relogin non-active ddbs */ - struct ddb_entry *ddb_entry; - - ddb_entry = - /* FIXME: name length? */ - qla4xxx_lookup_ddb_by_fw_index(ha, - mbox_sts[2]); - if (!ddb_entry) - break; - - ddb_entry->dev_scan_wait_to_complete_relogin = - 0; - ddb_entry->dev_scan_wait_to_start_relogin = - jiffies + - ((ddb_entry->default_time2wait + - 4) * HZ); - - DEBUG2(printk("scsi%ld: ddb [%d] initiate" - " RELOGIN after %d seconds\n", - ha->host_no, - ddb_entry->fw_ddb_index, - ddb_entry->default_time2wait + - 4)); - break; } - + case PROCESS_ALL_AENS: + default: if (mbox_sts[1] == 0) { /* Global DB change. */ qla4xxx_reinitialize_ddb_list(ha); } else if (mbox_sts[1] == 1) { /* Specific device. */ diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 47b259190b5a..379df2bde9db 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -407,9 +407,6 @@ qla4xxx_update_local_ifcb(struct scsi_qla_host *ha, /*memcpy(ha->alias, init_fw_cb->Alias, min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/ - /* Save Command Line Paramater info */ - ha->discovery_wait = ql4xdiscoverywait; - if (ha->acb_version == ACB_SUPPORTED) { ha->ipv6_options = init_fw_cb->ipv6_opts; ha->ipv6_addl_options = init_fw_cb->ipv6_addtl_opts; diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 409b20d62ef5..1d5c6fbbfaae 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -29,10 +29,6 @@ static struct kmem_cache *srb_cachep; /* * Module parameter information and variables */ -int ql4xdiscoverywait = 60; -module_param(ql4xdiscoverywait, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(ql4xdiscoverywait, "Discovery wait time"); - int ql4xdontresethba = 0; module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql4xdontresethba, -- cgit v1.2.3 From 58da51dcfc13b2222ce8565e308852aef001f5d2 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Date: Mon, 21 Mar 2011 03:34:28 -0700 Subject: [SCSI] qla4xxx: remove unused ddb flag DF_NO_RELOGIN Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_def.h | 2 -- drivers/scsi/qla4xxx/ql4_init.c | 2 -- 2 files changed, 4 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index b46d0dc9a48e..7aa60ee485e1 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -286,8 +286,6 @@ struct ddb_entry { * DDB flags. */ #define DF_RELOGIN 0 /* Relogin to device */ -#define DF_NO_RELOGIN 1 /* Do not relogin if IOCTL - * logged it out */ #define DF_ISNS_DISCOVERED 2 /* Device was discovered via iSNS */ #define DF_FO_MASKED 3 diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index bf1c30b17a82..8b5453a60444 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -1445,7 +1445,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, atomic_set(&ddb_entry->relogin_retry_count, 0); atomic_set(&ddb_entry->relogin_timer, 0); clear_bit(DF_RELOGIN, &ddb_entry->flags); - clear_bit(DF_NO_RELOGIN, &ddb_entry->flags); iscsi_unblock_session(ddb_entry->sess); iscsi_session_event(ddb_entry->sess, ISCSI_KEVENT_CREATE_SESSION); @@ -1470,7 +1469,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, */ if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED && !test_bit(DF_RELOGIN, &ddb_entry->flags) && - !test_bit(DF_NO_RELOGIN, &ddb_entry->flags) && qla4_is_relogin_allowed(ha, conn_err)) { /* * This triggers a relogin. After the relogin_timer -- cgit v1.2.3 From 7eece5a084264c1bff908b0d6a1b176b39dd272f Mon Sep 17 00:00:00 2001 From: Karen Higgins <karen.higgins@qlogic.com> Date: Mon, 21 Mar 2011 03:34:29 -0700 Subject: [SCSI] qla4xxx: Prevent other port reinitialization during remove_adapter remove ha flag AF_HBA_GOING_AWAY and added flag AF_HA_REMOVAL to mark the other ISP-4xxx port to indicate that the driver is being removed, so that the other port will not re-initialize while in the process of removing the ha due to driver unload or hba hotplug. Signed-off-by: Karen Higgins <karen.higgins@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_def.h | 5 +++- drivers/scsi/qla4xxx/ql4_isr.c | 2 +- drivers/scsi/qla4xxx/ql4_mbx.c | 2 +- drivers/scsi/qla4xxx/ql4_os.c | 53 +++++++++++++++++++++++++++++++----------- 4 files changed, 46 insertions(+), 16 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index 7aa60ee485e1..c1f8d1b150f7 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -53,6 +53,9 @@ #define PCI_DEVICE_ID_QLOGIC_ISP8022 0x8022 #endif +#define ISP4XXX_PCI_FN_1 0x1 +#define ISP4XXX_PCI_FN_2 0x3 + #define QLA_SUCCESS 0 #define QLA_ERROR 1 @@ -371,7 +374,7 @@ struct scsi_qla_host { #define AF_LINK_UP 8 /* 0x00000100 */ #define AF_IRQ_ATTACHED 10 /* 0x00000400 */ #define AF_DISABLE_ACB_COMPLETE 11 /* 0x00000800 */ -#define AF_HBA_GOING_AWAY 12 /* 0x00001000 */ +#define AF_HA_REMOVAL 12 /* 0x00001000 */ #define AF_INTx_ENABLED 15 /* 0x00008000 */ #define AF_MSI_ENABLED 16 /* 0x00010000 */ #define AF_MSIX_ENABLED 17 /* 0x00020000 */ diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c index 2ef1a986f5c0..2f40ac761cd4 100644 --- a/drivers/scsi/qla4xxx/ql4_isr.c +++ b/drivers/scsi/qla4xxx/ql4_isr.c @@ -801,7 +801,7 @@ irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id) &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); - if (!test_bit(AF_HBA_GOING_AWAY, &ha->flags)) + if (!test_bit(AF_HA_REMOVAL, &ha->flags)) set_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); break; diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 379df2bde9db..199fa643cdad 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -151,7 +151,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, if (test_bit(AF_IRQ_ATTACHED, &ha->flags) && test_bit(AF_INTERRUPTS_ON, &ha->flags) && test_bit(AF_ONLINE, &ha->flags) && - !test_bit(AF_HBA_GOING_AWAY, &ha->flags)) { + !test_bit(AF_HA_REMOVAL, &ha->flags)) { /* Do not poll for completion. Use completion queue */ set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags); wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ); diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 1d5c6fbbfaae..f80b702730ad 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -749,12 +749,6 @@ static void qla4xxx_timer(struct scsi_qla_host *ha) if (!pci_channel_offline(ha->pdev)) pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); - if (test_bit(AF_HBA_GOING_AWAY, &ha->flags)) { - DEBUG2(ql4_printk(KERN_INFO, ha, "%s exited. HBA GOING AWAY\n", - __func__)); - return; - } - if (is_qla8022(ha)) { qla4_8xxx_watchdog(ha); } @@ -1063,7 +1057,6 @@ void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) /* Disable the board */ ql4_printk(KERN_INFO, ha, "Disabling the board\n"); - set_bit(AF_HBA_GOING_AWAY, &ha->flags); qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); qla4xxx_mark_all_devices_missing(ha); @@ -1255,11 +1248,6 @@ static void qla4xxx_do_dpc(struct work_struct *work) goto do_dpc_exit; } - /* HBA is in the process of being permanently disabled. - * Don't process anything */ - if (test_bit(AF_HBA_GOING_AWAY, &ha->flags)) - return; - if (is_qla8022(ha)) { if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { qla4_8xxx_idc_lock(ha); @@ -1823,6 +1811,44 @@ probe_disable_device: return ret; } +/** + * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize + * @ha: pointer to adapter structure + * + * Mark the other ISP-4xxx port to indicate that the driver is being removed, + * so that the other port will not re-initialize while in the process of + * removing the ha due to driver unload or hba hotplug. + **/ +static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) +{ + struct scsi_qla_host *other_ha = NULL; + struct pci_dev *other_pdev = NULL; + int fn = ISP4XXX_PCI_FN_2; + + /*iscsi function numbers for ISP4xxx is 1 and 3*/ + if (PCI_FUNC(ha->pdev->devfn) & BIT_1) + fn = ISP4XXX_PCI_FN_1; + + other_pdev = + pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), + ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), + fn)); + + /* Get other_ha if other_pdev is valid and state is enable*/ + if (other_pdev) { + if (atomic_read(&other_pdev->enable_cnt)) { + other_ha = pci_get_drvdata(other_pdev); + if (other_ha) { + set_bit(AF_HA_REMOVAL, &other_ha->flags); + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " + "Prevent %s reinit\n", __func__, + dev_name(&other_ha->pdev->dev))); + } + } + pci_dev_put(other_pdev); + } +} + /** * qla4xxx_remove_adapter - calback function to remove adapter. * @pci_dev: PCI device pointer @@ -1833,7 +1859,8 @@ static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) ha = pci_get_drvdata(pdev); - set_bit(AF_HBA_GOING_AWAY, &ha->flags); + if (!is_qla8022(ha)) + qla4xxx_prevent_other_port_reinit(ha); /* remove devs from iscsi_sessions to scsi_devices */ qla4xxx_free_ddb_list(ha); -- cgit v1.2.3 From fc7657c9d98c250c9fd212348e6e156c73885cc4 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Date: Mon, 21 Mar 2011 03:34:30 -0700 Subject: [SCSI] qla4xxx: cleanup function qla4xxx_process_ddb_changed We don't need to check ddb old state we can take action based on ddb new state. Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_init.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 8b5453a60444..bbb2e903d38a 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -1409,7 +1409,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, uint32_t state, uint32_t conn_err) { struct ddb_entry * ddb_entry; - uint32_t old_fw_ddb_device_state; /* check for out of range index */ if (fw_ddb_index >= MAX_DDB_ENTRIES) @@ -1425,22 +1424,14 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, } /* Device already exists in our database. */ - old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for " "index [%d]\n", ha->host_no, __func__, ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); - if (old_fw_ddb_device_state == state && - state == DDB_DS_SESSION_ACTIVE) { - if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { - atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); - iscsi_unblock_session(ddb_entry->sess); - } - return QLA_SUCCESS; - } ddb_entry->fw_ddb_device_state = state; /* Device is back online. */ - if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { + if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) && + (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) { atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); atomic_set(&ddb_entry->relogin_retry_count, 0); atomic_set(&ddb_entry->relogin_timer, 0); @@ -1452,7 +1443,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, * Change the lun state to READY in case the lun TIMEOUT before * the device came back. */ - } else { + } else if (ddb_entry->fw_ddb_device_state != DDB_DS_SESSION_ACTIVE) { /* Device went away, mark device missing */ if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s mark missing " -- cgit v1.2.3 From 8bb4033d2b91e055a32e905e10a7034a4b077b7a Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Date: Mon, 21 Mar 2011 03:34:31 -0700 Subject: [SCSI] qla4xxx: Add support for ql4xmaxqdepth command line parameter This provides the flexibility to modify the qdepth based on different target devices to make the best use of system resources. Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_os.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index f80b702730ad..df46e5d8f74e 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -51,6 +51,11 @@ MODULE_PARM_DESC(ql4xenablemsix, " 2 = enable MSI interrupt mechanism."); #define QL4_DEF_QDEPTH 32 +static int ql4xmaxqdepth = QL4_DEF_QDEPTH; +module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(ql4xmaxqdepth, + "Maximum queue depth to report for target devices.\n" + " Default: 32."); /* * SCSI host template entry points @@ -1904,10 +1909,15 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) { struct iscsi_cls_session *sess = starget_to_session(sdev->sdev_target); struct ddb_entry *ddb = sess->dd_data; + int queue_depth = QL4_DEF_QDEPTH; sdev->hostdata = ddb; sdev->tagged_supported = 1; - scsi_activate_tcq(sdev, QL4_DEF_QDEPTH); + + if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) + queue_depth = ql4xmaxqdepth; + + scsi_activate_tcq(sdev, queue_depth); return 0; } -- cgit v1.2.3 From 3038727c8391ab1f3e5f5cf764f9f74164e6b47a Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Date: Mon, 21 Mar 2011 03:34:32 -0700 Subject: [SCSI] qla4xxx: add support for ql4xsess_recovery_tmo cmd line param Target Session Recovery Timeout Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_os.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index df46e5d8f74e..b7bc69900de8 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -57,6 +57,12 @@ MODULE_PARM_DESC(ql4xmaxqdepth, "Maximum queue depth to report for target devices.\n" " Default: 32."); +static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; +module_param(ql4xsess_recovery_tmo, int, S_IRUGO); +MODULE_PARM_DESC(ql4xsess_recovery_tmo, + "Target Session Recovery Timeout.\n" + " Default: 30 sec."); + /* * SCSI host template entry points */ @@ -166,7 +172,7 @@ static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session) DEBUG2(printk("scsi%ld: %s: ddb [%d] session recovery timeout " "of (%d) secs exhausted, marking device DEAD.\n", ha->host_no, __func__, ddb_entry->fw_ddb_index, - QL4_SESS_RECOVERY_TMO)); + ddb_entry->sess->recovery_tmo)); } } @@ -296,7 +302,7 @@ int qla4xxx_add_sess(struct ddb_entry *ddb_entry) { int err; - ddb_entry->sess->recovery_tmo = QL4_SESS_RECOVERY_TMO; + ddb_entry->sess->recovery_tmo = ql4xsess_recovery_tmo; err = iscsi_add_session(ddb_entry->sess, ddb_entry->fw_ddb_index); if (err) { -- cgit v1.2.3 From 2d7924e6be8b994f718429001457e677a2159445 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Date: Mon, 21 Mar 2011 03:34:33 -0700 Subject: [SCSI] qla4xxx: added new function qla4xxx_relogin_all_devices Move relogin to all devices code from do_dpc to new fuction qla4xxx_relogin_all_devices() Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_os.c | 54 ++++++++++++++++++------------------------- 1 file changed, 23 insertions(+), 31 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index b7bc69900de8..a4acb0dd7beb 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1218,6 +1218,27 @@ recover_ha_init_adapter: return status; } +static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) +{ + struct ddb_entry *ddb_entry, *dtemp; + + list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) { + if ((atomic_read(&ddb_entry->state) == DDB_STATE_MISSING) || + (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD)) { + if (ddb_entry->fw_ddb_device_state == + DDB_DS_SESSION_ACTIVE) { + atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); + ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" + " marked ONLINE\n", ha->host_no, __func__, + ddb_entry->fw_ddb_index); + + iscsi_unblock_session(ddb_entry->sess); + } else + qla4xxx_relogin_device(ha, ddb_entry); + } + } +} + void qla4xxx_wake_dpc(struct scsi_qla_host *ha) { if (ha->dpc_thread && @@ -1326,13 +1347,7 @@ dpc_post_reset_ha: if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { if (!test_bit(AF_LINK_UP, &ha->flags)) { /* ---- link down? --- */ - list_for_each_entry_safe(ddb_entry, dtemp, - &ha->ddb_list, list) { - if (atomic_read(&ddb_entry->state) == - DDB_STATE_ONLINE) - qla4xxx_mark_device_missing(ha, - ddb_entry); - } + qla4xxx_mark_all_devices_missing(ha); } else { /* ---- link up? --- * * F/W will auto login to all devices ONLY ONCE after @@ -1341,30 +1356,7 @@ dpc_post_reset_ha: * manually relogin to devices when recovering from * connection failures, logouts, expired KATO, etc. */ - list_for_each_entry_safe(ddb_entry, dtemp, - &ha->ddb_list, list) { - if ((atomic_read(&ddb_entry->state) == - DDB_STATE_MISSING) || - (atomic_read(&ddb_entry->state) == - DDB_STATE_DEAD)) { - if (ddb_entry->fw_ddb_device_state == - DDB_DS_SESSION_ACTIVE) { - atomic_set(&ddb_entry->state, - DDB_STATE_ONLINE); - ql4_printk(KERN_INFO, ha, - "scsi%ld: %s: ddb[%d]" - " marked ONLINE\n", - ha->host_no, __func__, - ddb_entry->fw_ddb_index); - - iscsi_unblock_session( - ddb_entry->sess); - } else - qla4xxx_relogin_device( - ha, ddb_entry); - } - - } + qla4xxx_relogin_all_devices(ha); } } -- cgit v1.2.3 From d32cee3c2d742784ec6ac0b4ca5732e98b17bc5c Mon Sep 17 00:00:00 2001 From: Prasanna Mumbai <prasanna.mumbai@qlogic.com> Date: Mon, 21 Mar 2011 03:34:35 -0700 Subject: [SCSI] qla4xxx: masking required bits of add_fw_options during initialization Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Prasanna Mumbai <prasanna.mumbai@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_fw.h | 1 + drivers/scsi/qla4xxx/ql4_mbx.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h index c1985792f034..31e2bf97198c 100644 --- a/drivers/scsi/qla4xxx/ql4_fw.h +++ b/drivers/scsi/qla4xxx/ql4_fw.h @@ -455,6 +455,7 @@ struct addr_ctrl_blk { uint8_t res0; /* 07 */ uint16_t eth_mtu_size; /* 08-09 */ uint16_t add_fw_options; /* 0A-0B */ +#define SERIALIZE_TASK_MGMT 0x0400 uint8_t hb_interval; /* 0C */ uint8_t inst_num; /* 0D */ diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 199fa643cdad..f9d81c8372c3 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -476,6 +476,11 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha) init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE); + /* Set bit for "serialize task mgmt" all other bits need to be zero */ + init_fw_cb->add_fw_options = 0; + init_fw_cb->add_fw_options |= + __constant_cpu_to_le16(SERIALIZE_TASK_MGMT); + if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) != QLA_SUCCESS) { DEBUG2(printk(KERN_WARNING -- cgit v1.2.3 From 2dcb0a61041a003f439bbd38005b6e454c368be0 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Date: Mon, 21 Mar 2011 03:34:36 -0700 Subject: [SCSI] qla4xxx: Update driver version to 5.02.00-k6 Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h index 8475b308e01b..603155769407 100644 --- a/drivers/scsi/qla4xxx/ql4_version.h +++ b/drivers/scsi/qla4xxx/ql4_version.h @@ -5,4 +5,4 @@ * See LICENSE.qla4xxx for copyright and licensing details. */ -#define QLA4XXX_DRIVER_VERSION "5.02.00-k5" +#define QLA4XXX_DRIVER_VERSION "5.02.00-k6" -- cgit v1.2.3 From fee787129d4d6a5e967a69ea3dea3e38ba556b3d Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi <bprakash@broadcom.com> Date: Mon, 21 Mar 2011 18:51:13 -0700 Subject: [SCSI] bnx2fc: IO completion not processed due to missed wakeup Driver does not detect a new CQE (completion queue entry) if a thread receives the wakup when it is in TASK_RUNNING state. Fix is to set the state to TASK_INTERRUPTIBLE while holding the fp_work_lock. Also, Use __set_current_task() since it is now set inside a spinlock with synchronization. Two other related optimizations: 1. After we exit the while (!kthread_should_stop()) loop, use __set_current_state() since synchronization is no longer needed. 2. Remove set_current_state(TASK_RUNNING) after schedule() since it should always be TASK_RUNNING after schedule(). Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 2056890b437a..e2e647509a73 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -437,17 +437,16 @@ static int bnx2fc_l2_rcv_thread(void *arg) set_current_state(TASK_INTERRUPTIBLE); while (!kthread_should_stop()) { schedule(); - set_current_state(TASK_RUNNING); spin_lock_bh(&bg->fcoe_rx_list.lock); while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) { spin_unlock_bh(&bg->fcoe_rx_list.lock); bnx2fc_recv_frame(skb); spin_lock_bh(&bg->fcoe_rx_list.lock); } + __set_current_state(TASK_INTERRUPTIBLE); spin_unlock_bh(&bg->fcoe_rx_list.lock); - set_current_state(TASK_INTERRUPTIBLE); } - set_current_state(TASK_RUNNING); + __set_current_state(TASK_RUNNING); return 0; } @@ -569,7 +568,6 @@ int bnx2fc_percpu_io_thread(void *arg) set_current_state(TASK_INTERRUPTIBLE); while (!kthread_should_stop()) { schedule(); - set_current_state(TASK_RUNNING); spin_lock_bh(&p->fp_work_lock); while (!list_empty(&p->work_list)) { list_splice_init(&p->work_list, &work_list); @@ -583,10 +581,10 @@ int bnx2fc_percpu_io_thread(void *arg) spin_lock_bh(&p->fp_work_lock); } + __set_current_state(TASK_INTERRUPTIBLE); spin_unlock_bh(&p->fp_work_lock); - set_current_state(TASK_INTERRUPTIBLE); } - set_current_state(TASK_RUNNING); + __set_current_state(TASK_RUNNING); return 0; } -- cgit v1.2.3 From 3dea642afd9187728d119fce5c82a7ed9faa9b6a Mon Sep 17 00:00:00 2001 From: James Bottomley <James.Bottomley@suse.de> Date: Wed, 23 Mar 2011 09:58:28 -0500 Subject: [SCSI] Revert "[SCSI] Retrieve the Caching mode page" This reverts commit 24d720b726c1a85f1962831ac30ad4d2ef8276b1. Previously we thought there was little possibility that devices would crash with this, but some have been found. Reported-by: Alan Stern <stern@rowland.harvard.edu> Cc: Luben Tuikov <ltuikov@yahoo.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/sd.c | 63 ++++++++++++++----------------------------------------- 1 file changed, 16 insertions(+), 47 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 7ff61d76b4c5..b61ebec6bca7 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2027,14 +2027,10 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer) int old_rcd = sdkp->RCD; int old_dpofua = sdkp->DPOFUA; - if (sdp->skip_ms_page_8) { - if (sdp->type == TYPE_RBC) - goto defaults; - else { - modepage = 0x3F; - dbd = 0; - } - } else if (sdp->type == TYPE_RBC) { + if (sdp->skip_ms_page_8) + goto defaults; + + if (sdp->type == TYPE_RBC) { modepage = 6; dbd = 8; } else { @@ -2062,11 +2058,13 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer) */ if (len < 3) goto bad_sense; - else if (len > SD_BUF_SIZE) { - sd_printk(KERN_NOTICE, sdkp, "Truncating mode parameter " - "data from %d to %d bytes\n", len, SD_BUF_SIZE); - len = SD_BUF_SIZE; - } + if (len > 20) + len = 20; + + /* Take headers and block descriptors into account */ + len += data.header_length + data.block_descriptor_length; + if (len > SD_BUF_SIZE) + goto bad_sense; /* Get the data */ res = sd_do_mode_sense(sdp, dbd, modepage, buffer, len, &data, &sshdr); @@ -2074,45 +2072,16 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer) if (scsi_status_is_good(res)) { int offset = data.header_length + data.block_descriptor_length; - while (offset < len) { - u8 page_code = buffer[offset] & 0x3F; - u8 spf = buffer[offset] & 0x40; - - if (page_code == 8 || page_code == 6) { - /* We're interested only in the first 3 bytes. - */ - if (len - offset <= 2) { - sd_printk(KERN_ERR, sdkp, "Incomplete " - "mode parameter data\n"); - goto defaults; - } else { - modepage = page_code; - goto Page_found; - } - } else { - /* Go to the next page */ - if (spf && len - offset > 3) - offset += 4 + (buffer[offset+2] << 8) + - buffer[offset+3]; - else if (!spf && len - offset > 1) - offset += 2 + buffer[offset+1]; - else { - sd_printk(KERN_ERR, sdkp, "Incomplete " - "mode parameter data\n"); - goto defaults; - } - } + if (offset >= SD_BUF_SIZE - 2) { + sd_printk(KERN_ERR, sdkp, "Malformed MODE SENSE response\n"); + goto defaults; } - if (modepage == 0x3F) { - sd_printk(KERN_ERR, sdkp, "No Caching mode page " - "present\n"); - goto defaults; - } else if ((buffer[offset] & 0x3f) != modepage) { + if ((buffer[offset] & 0x3f) != modepage) { sd_printk(KERN_ERR, sdkp, "Got wrong page\n"); goto defaults; } - Page_found: + if (modepage == 8) { sdkp->WCE = ((buffer[offset + 2] & 0x04) != 0); sdkp->RCD = ((buffer[offset + 2] & 0x01) != 0); -- cgit v1.2.3 From 5fa8b573134108a333a317378998a9f1299c4dd6 Mon Sep 17 00:00:00 2001 From: Sarang Radke <sarang.radke@qlogic.com> Date: Wed, 23 Mar 2011 08:07:33 -0700 Subject: [SCSI] qla4xxx: Use polling mode for disable interrupt mailbox completion Disable Interrupt MBX completion will disable the interrupt on successful completion. Fixed the bug where driver was waiting for Interrupt to come in for its completion. Now driver will poll for disable interrupt MBX completion. Signed-off-by: Sarang Radke <sarang.radke@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/scsi/qla4xxx/ql4_nx.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c index 3d5ef2df4134..35381cb0936e 100644 --- a/drivers/scsi/qla4xxx/ql4_nx.c +++ b/drivers/scsi/qla4xxx/ql4_nx.c @@ -2304,14 +2304,13 @@ qla4_8xxx_enable_intrs(struct scsi_qla_host *ha) void qla4_8xxx_disable_intrs(struct scsi_qla_host *ha) { - if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) + if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags)) qla4_8xxx_mbx_intr_disable(ha); spin_lock_irq(&ha->hardware_lock); /* BIT 10 - set */ qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400); spin_unlock_irq(&ha->hardware_lock); - clear_bit(AF_INTERRUPTS_ON, &ha->flags); } struct ql4_init_msix_entry { -- cgit v1.2.3 From 6de9843dab3f2a1d4d66d80aa9e5782f80977d20 Mon Sep 17 00:00:00 2001 From: Feng Tang <feng.tang@intel.com> Date: Wed, 23 Mar 2011 14:05:03 -0400 Subject: ext4: remove redundant set_buffer_mapped() in ext4_da_get_block_prep() The map_bh() call will have already set the buffer_head to mapped. Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/inode.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index f44307a21136..dec10e2115e0 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2502,7 +2502,6 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock, * for partial write. */ set_buffer_new(bh); - set_buffer_mapped(bh); } return 0; } -- cgit v1.2.3 From 65922cb5ced76ba7182e955d4aada96f93446b1a Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Date: Wed, 23 Mar 2011 14:08:27 -0400 Subject: ext4: unused variables cleanup in fs/ext4/extents.c ext4 extents cleanup: . remove unused `*ex' from check_eofblocks_fl . remove unused `*eh' from ext4_ext_map_blocks Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/extents.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index f46f6e3c02d7..1763d1ab9ea9 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3112,14 +3112,13 @@ static int check_eofblocks_fl(handle_t *handle, struct inode *inode, { int i, depth; struct ext4_extent_header *eh; - struct ext4_extent *ex, *last_ex; + struct ext4_extent *last_ex; if (!ext4_test_inode_flag(inode, EXT4_INODE_EOFBLOCKS)) return 0; depth = ext_depth(inode); eh = path[depth].p_hdr; - ex = path[depth].p_ext; if (unlikely(!eh->eh_entries)) { EXT4_ERROR_INODE(inode, "eh->eh_entries == 0 and " @@ -3299,7 +3298,6 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, struct ext4_map_blocks *map, int flags) { struct ext4_ext_path *path = NULL; - struct ext4_extent_header *eh; struct ext4_extent newex, *ex; ext4_fsblk_t newblock = 0; int err = 0, depth, ret; @@ -3357,7 +3355,6 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, err = -EIO; goto out2; } - eh = path[depth].p_hdr; ex = path[depth].p_ext; if (ex) { -- cgit v1.2.3 From 3703b2c5d041a68095cdd22380c23ce27d449ad7 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger <nab@linux-iscsi.org> Date: Fri, 18 Mar 2011 15:39:17 -0700 Subject: [SCSI] tcm_loop: Add multi-fabric Linux/SCSI LLD fabric module This patch adds the TCM_Loop Linux/SCSI LLD fabric module for accessing TCM device backstores as locally accessable SCSI LUNs in virtual SAS, FC, and iSCSI Target ports using the generic fabric TransportID and Target Port WWN naming handlers from TCM's target_core_fabric_lib.c The TCM_Loop module uses the generic fabric configfs infratructure provided by target_core_fabric_configfs.c and adds a module dependent attribute for the creation/release of the virtual I_T Nexus connected the TCM_Loop Target and Initiator Ports. TCM_Loop can also be used with scsi-generic and BSG drivers so that STGT userspace fabric modules, QEMU-KVM and other hypervisor SCSI passthrough support can access TCM device backstore and control CDB emulation. For more information please see: http://linux-iscsi.org/wiki/Tcm_loop [jejb: fixed up checkpatch stuff] Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de> --- drivers/target/Kconfig | 2 + drivers/target/Makefile | 3 + drivers/target/loopback/Kconfig | 11 + drivers/target/loopback/Makefile | 1 + drivers/target/loopback/tcm_loop.c | 1579 ++++++++++++++++++++++++++++++++++++ drivers/target/loopback/tcm_loop.h | 77 ++ 6 files changed, 1673 insertions(+) create mode 100644 drivers/target/loopback/Kconfig create mode 100644 drivers/target/loopback/Makefile create mode 100644 drivers/target/loopback/tcm_loop.c create mode 100644 drivers/target/loopback/tcm_loop.h diff --git a/drivers/target/Kconfig b/drivers/target/Kconfig index 2fac3be209ac..9ef2dbbfa62b 100644 --- a/drivers/target/Kconfig +++ b/drivers/target/Kconfig @@ -29,4 +29,6 @@ config TCM_PSCSI Say Y here to enable the TCM/pSCSI subsystem plugin for non-buffered passthrough access to Linux/SCSI device +source "drivers/target/loopback/Kconfig" + endif diff --git a/drivers/target/Makefile b/drivers/target/Makefile index 4f3cb788f06a..1178bbfc68fe 100644 --- a/drivers/target/Makefile +++ b/drivers/target/Makefile @@ -21,3 +21,6 @@ obj-$(CONFIG_TARGET_CORE) += target_core_mod.o obj-$(CONFIG_TCM_IBLOCK) += target_core_iblock.o obj-$(CONFIG_TCM_FILEIO) += target_core_file.o obj-$(CONFIG_TCM_PSCSI) += target_core_pscsi.o + +# Fabric modules +obj-$(CONFIG_LOOPBACK_TARGET) += loopback/ diff --git a/drivers/target/loopback/Kconfig b/drivers/target/loopback/Kconfig new file mode 100644 index 000000000000..57dcbc2d711b --- /dev/null +++ b/drivers/target/loopback/Kconfig @@ -0,0 +1,11 @@ +config LOOPBACK_TARGET + tristate "TCM Virtual SAS target and Linux/SCSI LDD fabric loopback module" + help + Say Y here to enable the TCM Virtual SAS target and Linux/SCSI LLD + fabric loopback module. + +config LOOPBACK_TARGET_CDB_DEBUG + bool "TCM loopback fabric module CDB debug code" + depends on LOOPBACK_TARGET + help + Say Y here to enable the TCM loopback fabric module CDB debug code diff --git a/drivers/target/loopback/Makefile b/drivers/target/loopback/Makefile new file mode 100644 index 000000000000..6abebdf95659 --- /dev/null +++ b/drivers/target/loopback/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_LOOPBACK_TARGET) += tcm_loop.o diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c new file mode 100644 index 000000000000..aed4e464d31c --- /dev/null +++ b/drivers/target/loopback/tcm_loop.c @@ -0,0 +1,1579 @@ +/******************************************************************************* + * + * This file contains the Linux/SCSI LLD virtual SCSI initiator driver + * for emulated SAS initiator ports + * + * © Copyright 2011 RisingTide Systems LLC. + * + * Licensed to the Linux Foundation under the General Public License (GPL) version 2. + * + * Author: Nicholas A. Bellinger <nab@risingtidesystems.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + ****************************************************************************/ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/configfs.h> +#include <scsi/scsi.h> +#include <scsi/scsi_tcq.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/libsas.h> /* For TASK_ATTR_* */ + +#include <target/target_core_base.h> +#include <target/target_core_transport.h> +#include <target/target_core_fabric_ops.h> +#include <target/target_core_fabric_configfs.h> +#include <target/target_core_fabric_lib.h> +#include <target/target_core_configfs.h> +#include <target/target_core_device.h> +#include <target/target_core_tpg.h> +#include <target/target_core_tmr.h> + +#include "tcm_loop.h" + +#define to_tcm_loop_hba(hba) container_of(hba, struct tcm_loop_hba, dev) + +/* Local pointer to allocated TCM configfs fabric module */ +static struct target_fabric_configfs *tcm_loop_fabric_configfs; + +static struct kmem_cache *tcm_loop_cmd_cache; + +static int tcm_loop_hba_no_cnt; + +/* + * Allocate a tcm_loop cmd descriptor from target_core_mod code + * + * Can be called from interrupt context in tcm_loop_queuecommand() below + */ +static struct se_cmd *tcm_loop_allocate_core_cmd( + struct tcm_loop_hba *tl_hba, + struct se_portal_group *se_tpg, + struct scsi_cmnd *sc) +{ + struct se_cmd *se_cmd; + struct se_session *se_sess; + struct tcm_loop_nexus *tl_nexus = tl_hba->tl_nexus; + struct tcm_loop_cmd *tl_cmd; + int sam_task_attr; + + if (!tl_nexus) { + scmd_printk(KERN_ERR, sc, "TCM_Loop I_T Nexus" + " does not exist\n"); + set_host_byte(sc, DID_ERROR); + return NULL; + } + se_sess = tl_nexus->se_sess; + + tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_ATOMIC); + if (!tl_cmd) { + printk(KERN_ERR "Unable to allocate struct tcm_loop_cmd\n"); + set_host_byte(sc, DID_ERROR); + return NULL; + } + se_cmd = &tl_cmd->tl_se_cmd; + /* + * Save the pointer to struct scsi_cmnd *sc + */ + tl_cmd->sc = sc; + /* + * Locate the SAM Task Attr from struct scsi_cmnd * + */ + if (sc->device->tagged_supported) { + switch (sc->tag) { + case HEAD_OF_QUEUE_TAG: + sam_task_attr = TASK_ATTR_HOQ; + break; + case ORDERED_QUEUE_TAG: + sam_task_attr = TASK_ATTR_ORDERED; + break; + default: + sam_task_attr = TASK_ATTR_SIMPLE; + break; + } + } else + sam_task_attr = TASK_ATTR_SIMPLE; + + /* + * Initialize struct se_cmd descriptor from target_core_mod infrastructure + */ + transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, + scsi_bufflen(sc), sc->sc_data_direction, sam_task_attr, + &tl_cmd->tl_sense_buf[0]); + + /* + * Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi + */ + if (scsi_bidi_cmnd(sc)) + T_TASK(se_cmd)->t_tasks_bidi = 1; + /* + * Locate the struct se_lun pointer and attach it to struct se_cmd + */ + if (transport_get_lun_for_cmd(se_cmd, NULL, tl_cmd->sc->device->lun) < 0) { + kmem_cache_free(tcm_loop_cmd_cache, tl_cmd); + set_host_byte(sc, DID_NO_CONNECT); + return NULL; + } + + transport_device_setup_cmd(se_cmd); + return se_cmd; +} + +/* + * Called by struct target_core_fabric_ops->new_cmd_map() + * + * Always called in process context. A non zero return value + * here will signal to handle an exception based on the return code. + */ +static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + struct scsi_cmnd *sc = tl_cmd->sc; + void *mem_ptr, *mem_bidi_ptr = NULL; + u32 sg_no_bidi = 0; + int ret; + /* + * Allocate the necessary tasks to complete the received CDB+data + */ + ret = transport_generic_allocate_tasks(se_cmd, tl_cmd->sc->cmnd); + if (ret == -1) { + /* Out of Resources */ + return PYX_TRANSPORT_LU_COMM_FAILURE; + } else if (ret == -2) { + /* + * Handle case for SAM_STAT_RESERVATION_CONFLICT + */ + if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT) + return PYX_TRANSPORT_RESERVATION_CONFLICT; + /* + * Otherwise, return SAM_STAT_CHECK_CONDITION and return + * sense data. + */ + return PYX_TRANSPORT_USE_SENSE_REASON; + } + /* + * Setup the struct scatterlist memory from the received + * struct scsi_cmnd. + */ + if (scsi_sg_count(sc)) { + se_cmd->se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM; + mem_ptr = (void *)scsi_sglist(sc); + /* + * For BIDI commands, pass in the extra READ buffer + * to transport_generic_map_mem_to_cmd() below.. + */ + if (T_TASK(se_cmd)->t_tasks_bidi) { + struct scsi_data_buffer *sdb = scsi_in(sc); + + mem_bidi_ptr = (void *)sdb->table.sgl; + sg_no_bidi = sdb->table.nents; + } + } else { + /* + * Used for DMA_NONE + */ + mem_ptr = NULL; + } + /* + * Map the SG memory into struct se_mem->page linked list using the same + * physical memory at sg->page_link. + */ + ret = transport_generic_map_mem_to_cmd(se_cmd, mem_ptr, + scsi_sg_count(sc), mem_bidi_ptr, sg_no_bidi); + if (ret < 0) + return PYX_TRANSPORT_LU_COMM_FAILURE; + + return 0; +} + +/* + * Called from struct target_core_fabric_ops->check_stop_free() + */ +static void tcm_loop_check_stop_free(struct se_cmd *se_cmd) +{ + /* + * Do not release struct se_cmd's containing a valid TMR + * pointer. These will be released directly in tcm_loop_device_reset() + * with transport_generic_free_cmd(). + */ + if (se_cmd->se_tmr_req) + return; + /* + * Release the struct se_cmd, which will make a callback to release + * struct tcm_loop_cmd * in tcm_loop_deallocate_core_cmd() + */ + transport_generic_free_cmd(se_cmd, 0, 1, 0); +} + +/* + * Called from struct target_core_fabric_ops->release_cmd_to_pool() + */ +static void tcm_loop_deallocate_core_cmd(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + + kmem_cache_free(tcm_loop_cmd_cache, tl_cmd); +} + +static int tcm_loop_proc_info(struct Scsi_Host *host, char *buffer, + char **start, off_t offset, + int length, int inout) +{ + return sprintf(buffer, "tcm_loop_proc_info()\n"); +} + +static int tcm_loop_driver_probe(struct device *); +static int tcm_loop_driver_remove(struct device *); + +static int pseudo_lld_bus_match(struct device *dev, + struct device_driver *dev_driver) +{ + return 1; +} + +static struct bus_type tcm_loop_lld_bus = { + .name = "tcm_loop_bus", + .match = pseudo_lld_bus_match, + .probe = tcm_loop_driver_probe, + .remove = tcm_loop_driver_remove, +}; + +static struct device_driver tcm_loop_driverfs = { + .name = "tcm_loop", + .bus = &tcm_loop_lld_bus, +}; +/* + * Used with root_device_register() in tcm_loop_alloc_core_bus() below + */ +struct device *tcm_loop_primary; + +/* + * Copied from drivers/scsi/libfc/fc_fcp.c:fc_change_queue_depth() and + * drivers/scsi/libiscsi.c:iscsi_change_queue_depth() + */ +static int tcm_loop_change_queue_depth( + struct scsi_device *sdev, + int depth, + int reason) +{ + switch (reason) { + case SCSI_QDEPTH_DEFAULT: + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + break; + case SCSI_QDEPTH_QFULL: + scsi_track_queue_full(sdev, depth); + break; + case SCSI_QDEPTH_RAMP_UP: + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + break; + default: + return -EOPNOTSUPP; + } + return sdev->queue_depth; +} + +/* + * Main entry point from struct scsi_host_template for incoming SCSI CDB+Data + * from Linux/SCSI subsystem for SCSI low level device drivers (LLDs) + */ +static int tcm_loop_queuecommand( + struct Scsi_Host *sh, + struct scsi_cmnd *sc) +{ + struct se_cmd *se_cmd; + struct se_portal_group *se_tpg; + struct tcm_loop_hba *tl_hba; + struct tcm_loop_tpg *tl_tpg; + + TL_CDB_DEBUG("tcm_loop_queuecommand() %d:%d:%d:%d got CDB: 0x%02x" + " scsi_buf_len: %u\n", sc->device->host->host_no, + sc->device->id, sc->device->channel, sc->device->lun, + sc->cmnd[0], scsi_bufflen(sc)); + /* + * Locate the tcm_loop_hba_t pointer + */ + tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host); + tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; + se_tpg = &tl_tpg->tl_se_tpg; + /* + * Determine the SAM Task Attribute and allocate tl_cmd and + * tl_cmd->tl_se_cmd from TCM infrastructure + */ + se_cmd = tcm_loop_allocate_core_cmd(tl_hba, se_tpg, sc); + if (!se_cmd) { + sc->scsi_done(sc); + return 0; + } + /* + * Queue up the newly allocated to be processed in TCM thread context. + */ + transport_generic_handle_cdb_map(se_cmd); + return 0; +} + +/* + * Called from SCSI EH process context to issue a LUN_RESET TMR + * to struct scsi_device + */ +static int tcm_loop_device_reset(struct scsi_cmnd *sc) +{ + struct se_cmd *se_cmd = NULL; + struct se_portal_group *se_tpg; + struct se_session *se_sess; + struct tcm_loop_cmd *tl_cmd = NULL; + struct tcm_loop_hba *tl_hba; + struct tcm_loop_nexus *tl_nexus; + struct tcm_loop_tmr *tl_tmr = NULL; + struct tcm_loop_tpg *tl_tpg; + int ret = FAILED; + /* + * Locate the tcm_loop_hba_t pointer + */ + tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host); + /* + * Locate the tl_nexus and se_sess pointers + */ + tl_nexus = tl_hba->tl_nexus; + if (!tl_nexus) { + printk(KERN_ERR "Unable to perform device reset without" + " active I_T Nexus\n"); + return FAILED; + } + se_sess = tl_nexus->se_sess; + /* + * Locate the tl_tpg and se_tpg pointers from TargetID in sc->device->id + */ + tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; + se_tpg = &tl_tpg->tl_se_tpg; + + tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_KERNEL); + if (!tl_cmd) { + printk(KERN_ERR "Unable to allocate memory for tl_cmd\n"); + return FAILED; + } + + tl_tmr = kzalloc(sizeof(struct tcm_loop_tmr), GFP_KERNEL); + if (!tl_tmr) { + printk(KERN_ERR "Unable to allocate memory for tl_tmr\n"); + goto release; + } + init_waitqueue_head(&tl_tmr->tl_tmr_wait); + + se_cmd = &tl_cmd->tl_se_cmd; + /* + * Initialize struct se_cmd descriptor from target_core_mod infrastructure + */ + transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, 0, + DMA_NONE, TASK_ATTR_SIMPLE, + &tl_cmd->tl_sense_buf[0]); + /* + * Allocate the LUN_RESET TMR + */ + se_cmd->se_tmr_req = core_tmr_alloc_req(se_cmd, (void *)tl_tmr, + TMR_LUN_RESET); + if (!se_cmd->se_tmr_req) + goto release; + /* + * Locate the underlying TCM struct se_lun from sc->device->lun + */ + if (transport_get_lun_for_tmr(se_cmd, sc->device->lun) < 0) + goto release; + /* + * Queue the TMR to TCM Core and sleep waiting for tcm_loop_queue_tm_rsp() + * to wake us up. + */ + transport_generic_handle_tmr(se_cmd); + wait_event(tl_tmr->tl_tmr_wait, atomic_read(&tl_tmr->tmr_complete)); + /* + * The TMR LUN_RESET has completed, check the response status and + * then release allocations. + */ + ret = (se_cmd->se_tmr_req->response == TMR_FUNCTION_COMPLETE) ? + SUCCESS : FAILED; +release: + if (se_cmd) + transport_generic_free_cmd(se_cmd, 1, 1, 0); + else + kmem_cache_free(tcm_loop_cmd_cache, tl_cmd); + kfree(tl_tmr); + return ret; +} + +static int tcm_loop_slave_alloc(struct scsi_device *sd) +{ + set_bit(QUEUE_FLAG_BIDI, &sd->request_queue->queue_flags); + return 0; +} + +static int tcm_loop_slave_configure(struct scsi_device *sd) +{ + return 0; +} + +static struct scsi_host_template tcm_loop_driver_template = { + .proc_info = tcm_loop_proc_info, + .proc_name = "tcm_loopback", + .name = "TCM_Loopback", + .queuecommand = tcm_loop_queuecommand, + .change_queue_depth = tcm_loop_change_queue_depth, + .eh_device_reset_handler = tcm_loop_device_reset, + .can_queue = TL_SCSI_CAN_QUEUE, + .this_id = -1, + .sg_tablesize = TL_SCSI_SG_TABLESIZE, + .cmd_per_lun = TL_SCSI_CMD_PER_LUN, + .max_sectors = TL_SCSI_MAX_SECTORS, + .use_clustering = DISABLE_CLUSTERING, + .slave_alloc = tcm_loop_slave_alloc, + .slave_configure = tcm_loop_slave_configure, + .module = THIS_MODULE, +}; + +static int tcm_loop_driver_probe(struct device *dev) +{ + struct tcm_loop_hba *tl_hba; + struct Scsi_Host *sh; + int error; + + tl_hba = to_tcm_loop_hba(dev); + + sh = scsi_host_alloc(&tcm_loop_driver_template, + sizeof(struct tcm_loop_hba)); + if (!sh) { + printk(KERN_ERR "Unable to allocate struct scsi_host\n"); + return -ENODEV; + } + tl_hba->sh = sh; + + /* + * Assign the struct tcm_loop_hba pointer to struct Scsi_Host->hostdata + */ + *((struct tcm_loop_hba **)sh->hostdata) = tl_hba; + /* + * Setup single ID, Channel and LUN for now.. + */ + sh->max_id = 2; + sh->max_lun = 0; + sh->max_channel = 0; + sh->max_cmd_len = TL_SCSI_MAX_CMD_LEN; + + error = scsi_add_host(sh, &tl_hba->dev); + if (error) { + printk(KERN_ERR "%s: scsi_add_host failed\n", __func__); + scsi_host_put(sh); + return -ENODEV; + } + return 0; +} + +static int tcm_loop_driver_remove(struct device *dev) +{ + struct tcm_loop_hba *tl_hba; + struct Scsi_Host *sh; + + tl_hba = to_tcm_loop_hba(dev); + sh = tl_hba->sh; + + scsi_remove_host(sh); + scsi_host_put(sh); + return 0; +} + +static void tcm_loop_release_adapter(struct device *dev) +{ + struct tcm_loop_hba *tl_hba = to_tcm_loop_hba(dev); + + kfree(tl_hba); +} + +/* + * Called from tcm_loop_make_scsi_hba() in tcm_loop_configfs.c + */ +static int tcm_loop_setup_hba_bus(struct tcm_loop_hba *tl_hba, int tcm_loop_host_id) +{ + int ret; + + tl_hba->dev.bus = &tcm_loop_lld_bus; + tl_hba->dev.parent = tcm_loop_primary; + tl_hba->dev.release = &tcm_loop_release_adapter; + dev_set_name(&tl_hba->dev, "tcm_loop_adapter_%d", tcm_loop_host_id); + + ret = device_register(&tl_hba->dev); + if (ret) { + printk(KERN_ERR "device_register() failed for" + " tl_hba->dev: %d\n", ret); + return -ENODEV; + } + + return 0; +} + +/* + * Called from tcm_loop_fabric_init() in tcl_loop_fabric.c to load the emulated + * tcm_loop SCSI bus. + */ +static int tcm_loop_alloc_core_bus(void) +{ + int ret; + + tcm_loop_primary = root_device_register("tcm_loop_0"); + if (IS_ERR(tcm_loop_primary)) { + printk(KERN_ERR "Unable to allocate tcm_loop_primary\n"); + return PTR_ERR(tcm_loop_primary); + } + + ret = bus_register(&tcm_loop_lld_bus); + if (ret) { + printk(KERN_ERR "bus_register() failed for tcm_loop_lld_bus\n"); + goto dev_unreg; + } + + ret = driver_register(&tcm_loop_driverfs); + if (ret) { + printk(KERN_ERR "driver_register() failed for" + "tcm_loop_driverfs\n"); + goto bus_unreg; + } + + printk(KERN_INFO "Initialized TCM Loop Core Bus\n"); + return ret; + +bus_unreg: + bus_unregister(&tcm_loop_lld_bus); +dev_unreg: + root_device_unregister(tcm_loop_primary); + return ret; +} + +static void tcm_loop_release_core_bus(void) +{ + driver_unregister(&tcm_loop_driverfs); + bus_unregister(&tcm_loop_lld_bus); + root_device_unregister(tcm_loop_primary); + + printk(KERN_INFO "Releasing TCM Loop Core BUS\n"); +} + +static char *tcm_loop_get_fabric_name(void) +{ + return "loopback"; +} + +static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + /* + * tl_proto_id is set at tcm_loop_configfs.c:tcm_loop_make_scsi_hba() + * time based on the protocol dependent prefix of the passed configfs group. + * + * Based upon tl_proto_id, TCM_Loop emulates the requested fabric + * ProtocolID using target_core_fabric_lib.c symbols. + */ + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return sas_get_fabric_proto_ident(se_tpg); + case SCSI_PROTOCOL_FCP: + return fc_get_fabric_proto_ident(se_tpg); + case SCSI_PROTOCOL_ISCSI: + return iscsi_get_fabric_proto_ident(se_tpg); + default: + printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using" + " SAS emulation\n", tl_hba->tl_proto_id); + break; + } + + return sas_get_fabric_proto_ident(se_tpg); +} + +static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + /* + * Return the passed NAA identifier for the SAS Target Port + */ + return &tl_tpg->tl_hba->tl_wwn_address[0]; +} + +static u16 tcm_loop_get_tag(struct se_portal_group *se_tpg) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + /* + * This Tag is used when forming SCSI Name identifier in EVPD=1 0x83 + * to represent the SCSI Target Port. + */ + return tl_tpg->tl_tpgt; +} + +static u32 tcm_loop_get_default_depth(struct se_portal_group *se_tpg) +{ + return 1; +} + +static u32 tcm_loop_get_pr_transport_id( + struct se_portal_group *se_tpg, + struct se_node_acl *se_nacl, + struct t10_pr_registration *pr_reg, + int *format_code, + unsigned char *buf) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg, + format_code, buf); + case SCSI_PROTOCOL_FCP: + return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg, + format_code, buf); + case SCSI_PROTOCOL_ISCSI: + return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg, + format_code, buf); + default: + printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using" + " SAS emulation\n", tl_hba->tl_proto_id); + break; + } + + return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg, + format_code, buf); +} + +static u32 tcm_loop_get_pr_transport_id_len( + struct se_portal_group *se_tpg, + struct se_node_acl *se_nacl, + struct t10_pr_registration *pr_reg, + int *format_code) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, + format_code); + case SCSI_PROTOCOL_FCP: + return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, + format_code); + case SCSI_PROTOCOL_ISCSI: + return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, + format_code); + default: + printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using" + " SAS emulation\n", tl_hba->tl_proto_id); + break; + } + + return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, + format_code); +} + +/* + * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above + * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations. + */ +static char *tcm_loop_parse_pr_out_transport_id( + struct se_portal_group *se_tpg, + const char *buf, + u32 *out_tid_len, + char **port_nexus_ptr) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, + port_nexus_ptr); + case SCSI_PROTOCOL_FCP: + return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, + port_nexus_ptr); + case SCSI_PROTOCOL_ISCSI: + return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, + port_nexus_ptr); + default: + printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using" + " SAS emulation\n", tl_hba->tl_proto_id); + break; + } + + return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, + port_nexus_ptr); +} + +/* + * Returning (1) here allows for target_core_mod struct se_node_acl to be generated + * based upon the incoming fabric dependent SCSI Initiator Port + */ +static int tcm_loop_check_demo_mode(struct se_portal_group *se_tpg) +{ + return 1; +} + +static int tcm_loop_check_demo_mode_cache(struct se_portal_group *se_tpg) +{ + return 0; +} + +/* + * Allow I_T Nexus full READ-WRITE access without explict Initiator Node ACLs for + * local virtual Linux/SCSI LLD passthrough into VM hypervisor guest + */ +static int tcm_loop_check_demo_mode_write_protect(struct se_portal_group *se_tpg) +{ + return 0; +} + +/* + * Because TCM_Loop does not use explict ACLs and MappedLUNs, this will + * never be called for TCM_Loop by target_core_fabric_configfs.c code. + * It has been added here as a nop for target_fabric_tf_ops_check() + */ +static int tcm_loop_check_prod_mode_write_protect(struct se_portal_group *se_tpg) +{ + return 0; +} + +static struct se_node_acl *tcm_loop_tpg_alloc_fabric_acl( + struct se_portal_group *se_tpg) +{ + struct tcm_loop_nacl *tl_nacl; + + tl_nacl = kzalloc(sizeof(struct tcm_loop_nacl), GFP_KERNEL); + if (!tl_nacl) { + printk(KERN_ERR "Unable to allocate struct tcm_loop_nacl\n"); + return NULL; + } + + return &tl_nacl->se_node_acl; +} + +static void tcm_loop_tpg_release_fabric_acl( + struct se_portal_group *se_tpg, + struct se_node_acl *se_nacl) +{ + struct tcm_loop_nacl *tl_nacl = container_of(se_nacl, + struct tcm_loop_nacl, se_node_acl); + + kfree(tl_nacl); +} + +static u32 tcm_loop_get_inst_index(struct se_portal_group *se_tpg) +{ + return 1; +} + +static void tcm_loop_new_cmd_failure(struct se_cmd *se_cmd) +{ + /* + * Since TCM_loop is already passing struct scatterlist data from + * struct scsi_cmnd, no more Linux/SCSI failure dependent state need + * to be handled here. + */ + return; +} + +static int tcm_loop_is_state_remove(struct se_cmd *se_cmd) +{ + /* + * Assume struct scsi_cmnd is not in remove state.. + */ + return 0; +} + +static int tcm_loop_sess_logged_in(struct se_session *se_sess) +{ + /* + * Assume that TL Nexus is always active + */ + return 1; +} + +static u32 tcm_loop_sess_get_index(struct se_session *se_sess) +{ + return 1; +} + +static void tcm_loop_set_default_node_attributes(struct se_node_acl *se_acl) +{ + return; +} + +static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd) +{ + return 1; +} + +static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + + return tl_cmd->sc_cmd_state; +} + +static int tcm_loop_shutdown_session(struct se_session *se_sess) +{ + return 0; +} + +static void tcm_loop_close_session(struct se_session *se_sess) +{ + return; +}; + +static void tcm_loop_stop_session( + struct se_session *se_sess, + int sess_sleep, + int conn_sleep) +{ + return; +} + +static void tcm_loop_fall_back_to_erl0(struct se_session *se_sess) +{ + return; +} + +static int tcm_loop_write_pending(struct se_cmd *se_cmd) +{ + /* + * Since Linux/SCSI has already sent down a struct scsi_cmnd + * sc->sc_data_direction of DMA_TO_DEVICE with struct scatterlist array + * memory, and memory has already been mapped to struct se_cmd->t_mem_list + * format with transport_generic_map_mem_to_cmd(). + * + * We now tell TCM to add this WRITE CDB directly into the TCM storage + * object execution queue. + */ + transport_generic_process_write(se_cmd); + return 0; +} + +static int tcm_loop_write_pending_status(struct se_cmd *se_cmd) +{ + return 0; +} + +static int tcm_loop_queue_data_in(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + struct scsi_cmnd *sc = tl_cmd->sc; + + TL_CDB_DEBUG("tcm_loop_queue_data_in() called for scsi_cmnd: %p" + " cdb: 0x%02x\n", sc, sc->cmnd[0]); + + sc->result = SAM_STAT_GOOD; + set_host_byte(sc, DID_OK); + sc->scsi_done(sc); + return 0; +} + +static int tcm_loop_queue_status(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + struct scsi_cmnd *sc = tl_cmd->sc; + + TL_CDB_DEBUG("tcm_loop_queue_status() called for scsi_cmnd: %p" + " cdb: 0x%02x\n", sc, sc->cmnd[0]); + + if (se_cmd->sense_buffer && + ((se_cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) || + (se_cmd->se_cmd_flags & SCF_EMULATED_TASK_SENSE))) { + + memcpy((void *)sc->sense_buffer, (void *)se_cmd->sense_buffer, + SCSI_SENSE_BUFFERSIZE); + sc->result = SAM_STAT_CHECK_CONDITION; + set_driver_byte(sc, DRIVER_SENSE); + } else + sc->result = se_cmd->scsi_status; + + set_host_byte(sc, DID_OK); + sc->scsi_done(sc); + return 0; +} + +static int tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd) +{ + struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; + struct tcm_loop_tmr *tl_tmr = se_tmr->fabric_tmr_ptr; + /* + * The SCSI EH thread will be sleeping on se_tmr->tl_tmr_wait, go ahead + * and wake up the wait_queue_head_t in tcm_loop_device_reset() + */ + atomic_set(&tl_tmr->tmr_complete, 1); + wake_up(&tl_tmr->tl_tmr_wait); + return 0; +} + +static u16 tcm_loop_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length) +{ + return 0; +} + +static u16 tcm_loop_get_fabric_sense_len(void) +{ + return 0; +} + +static u64 tcm_loop_pack_lun(unsigned int lun) +{ + u64 result; + + /* LSB of lun into byte 1 big-endian */ + result = ((lun & 0xff) << 8); + /* use flat space addressing method */ + result |= 0x40 | ((lun >> 8) & 0x3f); + + return cpu_to_le64(result); +} + +static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba) +{ + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return "SAS"; + case SCSI_PROTOCOL_FCP: + return "FCP"; + case SCSI_PROTOCOL_ISCSI: + return "iSCSI"; + default: + break; + } + + return "Unknown"; +} + +/* Start items for tcm_loop_port_cit */ + +static int tcm_loop_port_link( + struct se_portal_group *se_tpg, + struct se_lun *lun) +{ + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + + atomic_inc(&tl_tpg->tl_tpg_port_count); + smp_mb__after_atomic_inc(); + /* + * Add Linux/SCSI struct scsi_device by HCTL + */ + scsi_add_device(tl_hba->sh, 0, tl_tpg->tl_tpgt, lun->unpacked_lun); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Port Link Successful\n"); + return 0; +} + +static void tcm_loop_port_unlink( + struct se_portal_group *se_tpg, + struct se_lun *se_lun) +{ + struct scsi_device *sd; + struct tcm_loop_hba *tl_hba; + struct tcm_loop_tpg *tl_tpg; + + tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); + tl_hba = tl_tpg->tl_hba; + + sd = scsi_device_lookup(tl_hba->sh, 0, tl_tpg->tl_tpgt, + se_lun->unpacked_lun); + if (!sd) { + printk(KERN_ERR "Unable to locate struct scsi_device for %d:%d:" + "%d\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun); + return; + } + /* + * Remove Linux/SCSI struct scsi_device by HCTL + */ + scsi_remove_device(sd); + scsi_device_put(sd); + + atomic_dec(&tl_tpg->tl_tpg_port_count); + smp_mb__after_atomic_dec(); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Port Unlink Successful\n"); +} + +/* End items for tcm_loop_port_cit */ + +/* Start items for tcm_loop_nexus_cit */ + +static int tcm_loop_make_nexus( + struct tcm_loop_tpg *tl_tpg, + const char *name) +{ + struct se_portal_group *se_tpg; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + struct tcm_loop_nexus *tl_nexus; + + if (tl_tpg->tl_hba->tl_nexus) { + printk(KERN_INFO "tl_tpg->tl_hba->tl_nexus already exists\n"); + return -EEXIST; + } + se_tpg = &tl_tpg->tl_se_tpg; + + tl_nexus = kzalloc(sizeof(struct tcm_loop_nexus), GFP_KERNEL); + if (!tl_nexus) { + printk(KERN_ERR "Unable to allocate struct tcm_loop_nexus\n"); + return -ENOMEM; + } + /* + * Initialize the struct se_session pointer + */ + tl_nexus->se_sess = transport_init_session(); + if (!tl_nexus->se_sess) + goto out; + /* + * Since we are running in 'demo mode' this call with generate a + * struct se_node_acl for the tcm_loop struct se_portal_group with the SCSI + * Initiator port name of the passed configfs group 'name'. + */ + tl_nexus->se_sess->se_node_acl = core_tpg_check_initiator_node_acl( + se_tpg, (unsigned char *)name); + if (!tl_nexus->se_sess->se_node_acl) { + transport_free_session(tl_nexus->se_sess); + goto out; + } + /* + * Now, register the SAS I_T Nexus as active with the call to + * transport_register_session() + */ + __transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl, + tl_nexus->se_sess, (void *)tl_nexus); + tl_tpg->tl_hba->tl_nexus = tl_nexus; + printk(KERN_INFO "TCM_Loop_ConfigFS: Established I_T Nexus to emulated" + " %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba), + name); + return 0; + +out: + kfree(tl_nexus); + return -ENOMEM; +} + +static int tcm_loop_drop_nexus( + struct tcm_loop_tpg *tpg) +{ + struct se_session *se_sess; + struct tcm_loop_nexus *tl_nexus; + struct tcm_loop_hba *tl_hba = tpg->tl_hba; + + tl_nexus = tpg->tl_hba->tl_nexus; + if (!tl_nexus) + return -ENODEV; + + se_sess = tl_nexus->se_sess; + if (!se_sess) + return -ENODEV; + + if (atomic_read(&tpg->tl_tpg_port_count)) { + printk(KERN_ERR "Unable to remove TCM_Loop I_T Nexus with" + " active TPG port count: %d\n", + atomic_read(&tpg->tl_tpg_port_count)); + return -EPERM; + } + + printk(KERN_INFO "TCM_Loop_ConfigFS: Removing I_T Nexus to emulated" + " %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba), + tl_nexus->se_sess->se_node_acl->initiatorname); + /* + * Release the SCSI I_T Nexus to the emulated SAS Target Port + */ + transport_deregister_session(tl_nexus->se_sess); + tpg->tl_hba->tl_nexus = NULL; + kfree(tl_nexus); + return 0; +} + +/* End items for tcm_loop_nexus_cit */ + +static ssize_t tcm_loop_tpg_show_nexus( + struct se_portal_group *se_tpg, + char *page) +{ + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + struct tcm_loop_nexus *tl_nexus; + ssize_t ret; + + tl_nexus = tl_tpg->tl_hba->tl_nexus; + if (!tl_nexus) + return -ENODEV; + + ret = snprintf(page, PAGE_SIZE, "%s\n", + tl_nexus->se_sess->se_node_acl->initiatorname); + + return ret; +} + +static ssize_t tcm_loop_tpg_store_nexus( + struct se_portal_group *se_tpg, + const char *page, + size_t count) +{ + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + unsigned char i_port[TL_WWN_ADDR_LEN], *ptr, *port_ptr; + int ret; + /* + * Shutdown the active I_T nexus if 'NULL' is passed.. + */ + if (!strncmp(page, "NULL", 4)) { + ret = tcm_loop_drop_nexus(tl_tpg); + return (!ret) ? count : ret; + } + /* + * Otherwise make sure the passed virtual Initiator port WWN matches + * the fabric protocol_id set in tcm_loop_make_scsi_hba(), and call + * tcm_loop_make_nexus() + */ + if (strlen(page) > TL_WWN_ADDR_LEN) { + printk(KERN_ERR "Emulated NAA Sas Address: %s, exceeds" + " max: %d\n", page, TL_WWN_ADDR_LEN); + return -EINVAL; + } + snprintf(&i_port[0], TL_WWN_ADDR_LEN, "%s", page); + + ptr = strstr(i_port, "naa."); + if (ptr) { + if (tl_hba->tl_proto_id != SCSI_PROTOCOL_SAS) { + printk(KERN_ERR "Passed SAS Initiator Port %s does not" + " match target port protoid: %s\n", i_port, + tcm_loop_dump_proto_id(tl_hba)); + return -EINVAL; + } + port_ptr = &i_port[0]; + goto check_newline; + } + ptr = strstr(i_port, "fc."); + if (ptr) { + if (tl_hba->tl_proto_id != SCSI_PROTOCOL_FCP) { + printk(KERN_ERR "Passed FCP Initiator Port %s does not" + " match target port protoid: %s\n", i_port, + tcm_loop_dump_proto_id(tl_hba)); + return -EINVAL; + } + port_ptr = &i_port[3]; /* Skip over "fc." */ + goto check_newline; + } + ptr = strstr(i_port, "iqn."); + if (ptr) { + if (tl_hba->tl_proto_id != SCSI_PROTOCOL_ISCSI) { + printk(KERN_ERR "Passed iSCSI Initiator Port %s does not" + " match target port protoid: %s\n", i_port, + tcm_loop_dump_proto_id(tl_hba)); + return -EINVAL; + } + port_ptr = &i_port[0]; + goto check_newline; + } + printk(KERN_ERR "Unable to locate prefix for emulated Initiator Port:" + " %s\n", i_port); + return -EINVAL; + /* + * Clear any trailing newline for the NAA WWN + */ +check_newline: + if (i_port[strlen(i_port)-1] == '\n') + i_port[strlen(i_port)-1] = '\0'; + + ret = tcm_loop_make_nexus(tl_tpg, port_ptr); + if (ret < 0) + return ret; + + return count; +} + +TF_TPG_BASE_ATTR(tcm_loop, nexus, S_IRUGO | S_IWUSR); + +static struct configfs_attribute *tcm_loop_tpg_attrs[] = { + &tcm_loop_tpg_nexus.attr, + NULL, +}; + +/* Start items for tcm_loop_naa_cit */ + +struct se_portal_group *tcm_loop_make_naa_tpg( + struct se_wwn *wwn, + struct config_group *group, + const char *name) +{ + struct tcm_loop_hba *tl_hba = container_of(wwn, + struct tcm_loop_hba, tl_hba_wwn); + struct tcm_loop_tpg *tl_tpg; + char *tpgt_str, *end_ptr; + int ret; + unsigned short int tpgt; + + tpgt_str = strstr(name, "tpgt_"); + if (!tpgt_str) { + printk(KERN_ERR "Unable to locate \"tpgt_#\" directory" + " group\n"); + return ERR_PTR(-EINVAL); + } + tpgt_str += 5; /* Skip ahead of "tpgt_" */ + tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0); + + if (tpgt > TL_TPGS_PER_HBA) { + printk(KERN_ERR "Passed tpgt: %hu exceeds TL_TPGS_PER_HBA:" + " %u\n", tpgt, TL_TPGS_PER_HBA); + return ERR_PTR(-EINVAL); + } + tl_tpg = &tl_hba->tl_hba_tpgs[tpgt]; + tl_tpg->tl_hba = tl_hba; + tl_tpg->tl_tpgt = tpgt; + /* + * Register the tl_tpg as a emulated SAS TCM Target Endpoint + */ + ret = core_tpg_register(&tcm_loop_fabric_configfs->tf_ops, + wwn, &tl_tpg->tl_se_tpg, (void *)tl_tpg, + TRANSPORT_TPG_TYPE_NORMAL); + if (ret < 0) + return ERR_PTR(-ENOMEM); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Allocated Emulated %s" + " Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba), + config_item_name(&wwn->wwn_group.cg_item), tpgt); + + return &tl_tpg->tl_se_tpg; +} + +void tcm_loop_drop_naa_tpg( + struct se_portal_group *se_tpg) +{ + struct se_wwn *wwn = se_tpg->se_tpg_wwn; + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + struct tcm_loop_hba *tl_hba; + unsigned short tpgt; + + tl_hba = tl_tpg->tl_hba; + tpgt = tl_tpg->tl_tpgt; + /* + * Release the I_T Nexus for the Virtual SAS link if present + */ + tcm_loop_drop_nexus(tl_tpg); + /* + * Deregister the tl_tpg as a emulated SAS TCM Target Endpoint + */ + core_tpg_deregister(se_tpg); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Deallocated Emulated %s" + " Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba), + config_item_name(&wwn->wwn_group.cg_item), tpgt); +} + +/* End items for tcm_loop_naa_cit */ + +/* Start items for tcm_loop_cit */ + +struct se_wwn *tcm_loop_make_scsi_hba( + struct target_fabric_configfs *tf, + struct config_group *group, + const char *name) +{ + struct tcm_loop_hba *tl_hba; + struct Scsi_Host *sh; + char *ptr; + int ret, off = 0; + + tl_hba = kzalloc(sizeof(struct tcm_loop_hba), GFP_KERNEL); + if (!tl_hba) { + printk(KERN_ERR "Unable to allocate struct tcm_loop_hba\n"); + return ERR_PTR(-ENOMEM); + } + /* + * Determine the emulated Protocol Identifier and Target Port Name + * based on the incoming configfs directory name. + */ + ptr = strstr(name, "naa."); + if (ptr) { + tl_hba->tl_proto_id = SCSI_PROTOCOL_SAS; + goto check_len; + } + ptr = strstr(name, "fc."); + if (ptr) { + tl_hba->tl_proto_id = SCSI_PROTOCOL_FCP; + off = 3; /* Skip over "fc." */ + goto check_len; + } + ptr = strstr(name, "iqn."); + if (ptr) { + tl_hba->tl_proto_id = SCSI_PROTOCOL_ISCSI; + goto check_len; + } + + printk(KERN_ERR "Unable to locate prefix for emulated Target Port:" + " %s\n", name); + return ERR_PTR(-EINVAL); + +check_len: + if (strlen(name) > TL_WWN_ADDR_LEN) { + printk(KERN_ERR "Emulated NAA %s Address: %s, exceeds" + " max: %d\n", name, tcm_loop_dump_proto_id(tl_hba), + TL_WWN_ADDR_LEN); + kfree(tl_hba); + return ERR_PTR(-EINVAL); + } + snprintf(&tl_hba->tl_wwn_address[0], TL_WWN_ADDR_LEN, "%s", &name[off]); + + /* + * Call device_register(tl_hba->dev) to register the emulated + * Linux/SCSI LLD of type struct Scsi_Host at tl_hba->sh after + * device_register() callbacks in tcm_loop_driver_probe() + */ + ret = tcm_loop_setup_hba_bus(tl_hba, tcm_loop_hba_no_cnt); + if (ret) + goto out; + + sh = tl_hba->sh; + tcm_loop_hba_no_cnt++; + printk(KERN_INFO "TCM_Loop_ConfigFS: Allocated emulated Target" + " %s Address: %s at Linux/SCSI Host ID: %d\n", + tcm_loop_dump_proto_id(tl_hba), name, sh->host_no); + + return &tl_hba->tl_hba_wwn; +out: + kfree(tl_hba); + return ERR_PTR(ret); +} + +void tcm_loop_drop_scsi_hba( + struct se_wwn *wwn) +{ + struct tcm_loop_hba *tl_hba = container_of(wwn, + struct tcm_loop_hba, tl_hba_wwn); + int host_no = tl_hba->sh->host_no; + /* + * Call device_unregister() on the original tl_hba->dev. + * tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will + * release *tl_hba; + */ + device_unregister(&tl_hba->dev); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Deallocated emulated Target" + " SAS Address: %s at Linux/SCSI Host ID: %d\n", + config_item_name(&wwn->wwn_group.cg_item), host_no); +} + +/* Start items for tcm_loop_cit */ +static ssize_t tcm_loop_wwn_show_attr_version( + struct target_fabric_configfs *tf, + char *page) +{ + return sprintf(page, "TCM Loopback Fabric module %s\n", TCM_LOOP_VERSION); +} + +TF_WWN_ATTR_RO(tcm_loop, version); + +static struct configfs_attribute *tcm_loop_wwn_attrs[] = { + &tcm_loop_wwn_version.attr, + NULL, +}; + +/* End items for tcm_loop_cit */ + +static int tcm_loop_register_configfs(void) +{ + struct target_fabric_configfs *fabric; + struct config_group *tf_cg; + int ret; + /* + * Set the TCM Loop HBA counter to zero + */ + tcm_loop_hba_no_cnt = 0; + /* + * Register the top level struct config_item_type with TCM core + */ + fabric = target_fabric_configfs_init(THIS_MODULE, "loopback"); + if (!fabric) { + printk(KERN_ERR "tcm_loop_register_configfs() failed!\n"); + return -1; + } + /* + * Setup the fabric API of function pointers used by target_core_mod + */ + fabric->tf_ops.get_fabric_name = &tcm_loop_get_fabric_name; + fabric->tf_ops.get_fabric_proto_ident = &tcm_loop_get_fabric_proto_ident; + fabric->tf_ops.tpg_get_wwn = &tcm_loop_get_endpoint_wwn; + fabric->tf_ops.tpg_get_tag = &tcm_loop_get_tag; + fabric->tf_ops.tpg_get_default_depth = &tcm_loop_get_default_depth; + fabric->tf_ops.tpg_get_pr_transport_id = &tcm_loop_get_pr_transport_id; + fabric->tf_ops.tpg_get_pr_transport_id_len = + &tcm_loop_get_pr_transport_id_len; + fabric->tf_ops.tpg_parse_pr_out_transport_id = + &tcm_loop_parse_pr_out_transport_id; + fabric->tf_ops.tpg_check_demo_mode = &tcm_loop_check_demo_mode; + fabric->tf_ops.tpg_check_demo_mode_cache = + &tcm_loop_check_demo_mode_cache; + fabric->tf_ops.tpg_check_demo_mode_write_protect = + &tcm_loop_check_demo_mode_write_protect; + fabric->tf_ops.tpg_check_prod_mode_write_protect = + &tcm_loop_check_prod_mode_write_protect; + /* + * The TCM loopback fabric module runs in demo-mode to a local + * virtual SCSI device, so fabric dependent initator ACLs are + * not required. + */ + fabric->tf_ops.tpg_alloc_fabric_acl = &tcm_loop_tpg_alloc_fabric_acl; + fabric->tf_ops.tpg_release_fabric_acl = + &tcm_loop_tpg_release_fabric_acl; + fabric->tf_ops.tpg_get_inst_index = &tcm_loop_get_inst_index; + /* + * Since tcm_loop is mapping physical memory from Linux/SCSI + * struct scatterlist arrays for each struct scsi_cmnd I/O, + * we do not need TCM to allocate a iovec array for + * virtual memory address mappings + */ + fabric->tf_ops.alloc_cmd_iovecs = NULL; + /* + * Used for setting up remaining TCM resources in process context + */ + fabric->tf_ops.new_cmd_map = &tcm_loop_new_cmd_map; + fabric->tf_ops.check_stop_free = &tcm_loop_check_stop_free; + fabric->tf_ops.release_cmd_to_pool = &tcm_loop_deallocate_core_cmd; + fabric->tf_ops.release_cmd_direct = &tcm_loop_deallocate_core_cmd; + fabric->tf_ops.shutdown_session = &tcm_loop_shutdown_session; + fabric->tf_ops.close_session = &tcm_loop_close_session; + fabric->tf_ops.stop_session = &tcm_loop_stop_session; + fabric->tf_ops.fall_back_to_erl0 = &tcm_loop_fall_back_to_erl0; + fabric->tf_ops.sess_logged_in = &tcm_loop_sess_logged_in; + fabric->tf_ops.sess_get_index = &tcm_loop_sess_get_index; + fabric->tf_ops.sess_get_initiator_sid = NULL; + fabric->tf_ops.write_pending = &tcm_loop_write_pending; + fabric->tf_ops.write_pending_status = &tcm_loop_write_pending_status; + /* + * Not used for TCM loopback + */ + fabric->tf_ops.set_default_node_attributes = + &tcm_loop_set_default_node_attributes; + fabric->tf_ops.get_task_tag = &tcm_loop_get_task_tag; + fabric->tf_ops.get_cmd_state = &tcm_loop_get_cmd_state; + fabric->tf_ops.new_cmd_failure = &tcm_loop_new_cmd_failure; + fabric->tf_ops.queue_data_in = &tcm_loop_queue_data_in; + fabric->tf_ops.queue_status = &tcm_loop_queue_status; + fabric->tf_ops.queue_tm_rsp = &tcm_loop_queue_tm_rsp; + fabric->tf_ops.set_fabric_sense_len = &tcm_loop_set_fabric_sense_len; + fabric->tf_ops.get_fabric_sense_len = &tcm_loop_get_fabric_sense_len; + fabric->tf_ops.is_state_remove = &tcm_loop_is_state_remove; + fabric->tf_ops.pack_lun = &tcm_loop_pack_lun; + + tf_cg = &fabric->tf_group; + /* + * Setup function pointers for generic logic in target_core_fabric_configfs.c + */ + fabric->tf_ops.fabric_make_wwn = &tcm_loop_make_scsi_hba; + fabric->tf_ops.fabric_drop_wwn = &tcm_loop_drop_scsi_hba; + fabric->tf_ops.fabric_make_tpg = &tcm_loop_make_naa_tpg; + fabric->tf_ops.fabric_drop_tpg = &tcm_loop_drop_naa_tpg; + /* + * fabric_post_link() and fabric_pre_unlink() are used for + * registration and release of TCM Loop Virtual SCSI LUNs. + */ + fabric->tf_ops.fabric_post_link = &tcm_loop_port_link; + fabric->tf_ops.fabric_pre_unlink = &tcm_loop_port_unlink; + fabric->tf_ops.fabric_make_np = NULL; + fabric->tf_ops.fabric_drop_np = NULL; + /* + * Setup default attribute lists for various fabric->tf_cit_tmpl + */ + TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_loop_wwn_attrs; + TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_loop_tpg_attrs; + TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; + /* + * Once fabric->tf_ops has been setup, now register the fabric for + * use within TCM + */ + ret = target_fabric_configfs_register(fabric); + if (ret < 0) { + printk(KERN_ERR "target_fabric_configfs_register() for" + " TCM_Loop failed!\n"); + target_fabric_configfs_free(fabric); + return -1; + } + /* + * Setup our local pointer to *fabric. + */ + tcm_loop_fabric_configfs = fabric; + printk(KERN_INFO "TCM_LOOP[0] - Set fabric ->" + " tcm_loop_fabric_configfs\n"); + return 0; +} + +static void tcm_loop_deregister_configfs(void) +{ + if (!tcm_loop_fabric_configfs) + return; + + target_fabric_configfs_deregister(tcm_loop_fabric_configfs); + tcm_loop_fabric_configfs = NULL; + printk(KERN_INFO "TCM_LOOP[0] - Cleared" + " tcm_loop_fabric_configfs\n"); +} + +static int __init tcm_loop_fabric_init(void) +{ + int ret; + + tcm_loop_cmd_cache = kmem_cache_create("tcm_loop_cmd_cache", + sizeof(struct tcm_loop_cmd), + __alignof__(struct tcm_loop_cmd), + 0, NULL); + if (!tcm_loop_cmd_cache) { + printk(KERN_ERR "kmem_cache_create() for" + " tcm_loop_cmd_cache failed\n"); + return -ENOMEM; + } + + ret = tcm_loop_alloc_core_bus(); + if (ret) + return ret; + + ret = tcm_loop_register_configfs(); + if (ret) { + tcm_loop_release_core_bus(); + return ret; + } + + return 0; +} + +static void __exit tcm_loop_fabric_exit(void) +{ + tcm_loop_deregister_configfs(); + tcm_loop_release_core_bus(); + kmem_cache_destroy(tcm_loop_cmd_cache); +} + +MODULE_DESCRIPTION("TCM loopback virtual Linux/SCSI fabric module"); +MODULE_AUTHOR("Nicholas A. Bellinger <nab@risingtidesystems.com>"); +MODULE_LICENSE("GPL"); +module_init(tcm_loop_fabric_init); +module_exit(tcm_loop_fabric_exit); diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h new file mode 100644 index 000000000000..7e9f7ab45548 --- /dev/null +++ b/drivers/target/loopback/tcm_loop.h @@ -0,0 +1,77 @@ +#define TCM_LOOP_VERSION "v2.1-rc1" +#define TL_WWN_ADDR_LEN 256 +#define TL_TPGS_PER_HBA 32 +/* + * Defaults for struct scsi_host_template tcm_loop_driver_template + * + * We use large can_queue and cmd_per_lun here and let TCM enforce + * the underlying se_device_t->queue_depth. + */ +#define TL_SCSI_CAN_QUEUE 1024 +#define TL_SCSI_CMD_PER_LUN 1024 +#define TL_SCSI_MAX_SECTORS 1024 +#define TL_SCSI_SG_TABLESIZE 256 +/* + * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len + */ +#define TL_SCSI_MAX_CMD_LEN 32 + +#ifdef CONFIG_LOOPBACK_TARGET_CDB_DEBUG +# define TL_CDB_DEBUG(x...) printk(KERN_INFO x) +#else +# define TL_CDB_DEBUG(x...) +#endif + +struct tcm_loop_cmd { + /* State of Linux/SCSI CDB+Data descriptor */ + u32 sc_cmd_state; + /* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */ + struct scsi_cmnd *sc; + struct list_head *tl_cmd_list; + /* The TCM I/O descriptor that is accessed via container_of() */ + struct se_cmd tl_se_cmd; + /* Sense buffer that will be mapped into outgoing status */ + unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER]; +}; + +struct tcm_loop_tmr { + atomic_t tmr_complete; + wait_queue_head_t tl_tmr_wait; +}; + +struct tcm_loop_nexus { + int it_nexus_active; + /* + * Pointer to Linux/SCSI HBA from linux/include/scsi_host.h + */ + struct scsi_host *sh; + /* + * Pointer to TCM session for I_T Nexus + */ + struct se_session *se_sess; +}; + +struct tcm_loop_nacl { + struct se_node_acl se_node_acl; +}; + +struct tcm_loop_tpg { + unsigned short tl_tpgt; + atomic_t tl_tpg_port_count; + struct se_portal_group tl_se_tpg; + struct tcm_loop_hba *tl_hba; +}; + +struct tcm_loop_hba { + u8 tl_proto_id; + unsigned char tl_wwn_address[TL_WWN_ADDR_LEN]; + struct se_hba_s *se_hba; + struct se_lun *tl_hba_lun; + struct se_port *tl_hba_lun_sep; + struct se_device_s *se_dev_hba_ptr; + struct tcm_loop_nexus *tl_nexus; + struct device dev; + struct Scsi_Host *sh; + struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA]; + struct se_wwn tl_hba_wwn; +}; -- cgit v1.2.3 From e47c085afb3d16cbc6a4bfb10a3b074bb7c58998 Mon Sep 17 00:00:00 2001 From: Trond Myklebust <Trond.Myklebust@netapp.com> Date: Wed, 23 Mar 2011 08:43:09 -0400 Subject: NFS: Ensure that we update the readdir filp->f_pos correctly If we're doing a search by readdir cookie, we need to ensure that the resulting f_pos is updated. To do so, we need to update the desc->current_index, in the same way that we do in the search by file offset case. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/dir.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 2c3eb33b904d..c5c71cb62fbd 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -290,7 +290,6 @@ int nfs_readdir_search_for_pos(struct nfs_cache_array *array, nfs_readdir_descri if (diff >= array->size) { if (array->eof_index >= 0) goto out_eof; - desc->current_index += array->size; return -EAGAIN; } @@ -311,6 +310,7 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des for (i = 0; i < array->size; i++) { if (array->array[i].cookie == *desc->dir_cookie) { + desc->file->f_pos = desc->current_index + i; desc->cache_entry_index = i; return 0; } @@ -342,6 +342,7 @@ int nfs_readdir_search_array(nfs_readdir_descriptor_t *desc) if (status == -EAGAIN) { desc->last_cookie = array->last_cookie; + desc->current_index += array->size; desc->page_index++; } nfs_readdir_release_array(desc->page); -- cgit v1.2.3 From 480c2006ebb44ae03165695db7b3e38c04e0d102 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker <bjschuma@netapp.com> Date: Wed, 23 Mar 2011 14:48:29 -0400 Subject: NFS: Create nfs_open_dir_context nfs_opendir() created a context that held much more information than we need for a readdir. This patch introduces a slimmed-down nfs_open_dir_context that contains only the cookie and the cred used for RPC operations. The new context will eventually be used to help detect readdir loops. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/dir.c | 54 +++++++++++++++++++++++++++++++++++++++++++------- fs/nfs/inode.c | 1 - include/linux/nfs_fs.h | 3 +++ 3 files changed, 50 insertions(+), 8 deletions(-) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index c5c71cb62fbd..cda73814f666 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -44,6 +44,7 @@ /* #define NFS_DEBUG_VERBOSE 1 */ static int nfs_opendir(struct inode *, struct file *); +static int nfs_closedir(struct inode *, struct file *); static int nfs_readdir(struct file *, void *, filldir_t); static struct dentry *nfs_lookup(struct inode *, struct dentry *, struct nameidata *); static int nfs_create(struct inode *, struct dentry *, int, struct nameidata *); @@ -64,7 +65,7 @@ const struct file_operations nfs_dir_operations = { .read = generic_read_dir, .readdir = nfs_readdir, .open = nfs_opendir, - .release = nfs_release, + .release = nfs_closedir, .fsync = nfs_fsync_dir, }; @@ -133,13 +134,33 @@ const struct inode_operations nfs4_dir_inode_operations = { #endif /* CONFIG_NFS_V4 */ +static struct nfs_open_dir_context *alloc_nfs_open_dir_context(struct rpc_cred *cred) +{ + struct nfs_open_dir_context *ctx; + ctx = kmalloc(sizeof(*ctx), GFP_KERNEL); + if (ctx != NULL) { + ctx->dir_cookie = 0; + ctx->cred = get_rpccred(cred); + } else + ctx = ERR_PTR(-ENOMEM); + return ctx; +} + +static void put_nfs_open_dir_context(struct nfs_open_dir_context *ctx) +{ + put_rpccred(ctx->cred); + kfree(ctx); +} + /* * Open file */ static int nfs_opendir(struct inode *inode, struct file *filp) { - int res; + int res = 0; + struct nfs_open_dir_context *ctx; + struct rpc_cred *cred; dfprintk(FILE, "NFS: open dir(%s/%s)\n", filp->f_path.dentry->d_parent->d_name.name, @@ -147,8 +168,15 @@ nfs_opendir(struct inode *inode, struct file *filp) nfs_inc_stats(inode, NFSIOS_VFSOPEN); - /* Call generic open code in order to cache credentials */ - res = nfs_open(inode, filp); + cred = rpc_lookup_cred(); + if (IS_ERR(cred)) + return PTR_ERR(cred); + ctx = alloc_nfs_open_dir_context(cred); + if (IS_ERR(ctx)) { + res = PTR_ERR(ctx); + goto out; + } + filp->private_data = ctx; if (filp->f_path.dentry == filp->f_path.mnt->mnt_root) { /* This is a mountpoint, so d_revalidate will never * have been called, so we need to refresh the @@ -156,9 +184,18 @@ nfs_opendir(struct inode *inode, struct file *filp) */ __nfs_revalidate_inode(NFS_SERVER(inode), inode); } +out: + put_rpccred(cred); return res; } +static int +nfs_closedir(struct inode *inode, struct file *filp) +{ + put_nfs_open_dir_context(filp->private_data); + return 0; +} + struct nfs_cache_array_entry { u64 cookie; u64 ino; @@ -355,7 +392,8 @@ static int nfs_readdir_xdr_filler(struct page **pages, nfs_readdir_descriptor_t *desc, struct nfs_entry *entry, struct file *file, struct inode *inode) { - struct rpc_cred *cred = nfs_file_cred(file); + struct nfs_open_dir_context *ctx = file->private_data; + struct rpc_cred *cred = ctx->cred; unsigned long timestamp, gencount; int error; @@ -786,6 +824,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir) struct inode *inode = dentry->d_inode; nfs_readdir_descriptor_t my_desc, *desc = &my_desc; + struct nfs_open_dir_context *dir_ctx = filp->private_data; int res; dfprintk(FILE, "NFS: readdir(%s/%s) starting at cookie %llu\n", @@ -802,7 +841,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir) memset(desc, 0, sizeof(*desc)); desc->file = filp; - desc->dir_cookie = &nfs_file_open_context(filp)->dir_cookie; + desc->dir_cookie = &dir_ctx->dir_cookie; desc->decode = NFS_PROTO(inode)->decode_dirent; desc->plus = NFS_USE_READDIRPLUS(inode); @@ -854,6 +893,7 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin) { struct dentry *dentry = filp->f_path.dentry; struct inode *inode = dentry->d_inode; + struct nfs_open_dir_context *dir_ctx = filp->private_data; dfprintk(FILE, "NFS: llseek dir(%s/%s, %lld, %d)\n", dentry->d_parent->d_name.name, @@ -873,7 +913,7 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin) } if (offset != filp->f_pos) { filp->f_pos = offset; - nfs_file_open_context(filp)->dir_cookie = 0; + dir_ctx->dir_cookie = 0; } out: mutex_unlock(&inode->i_mutex); diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 2f8e61816d75..477a2e512b39 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -639,7 +639,6 @@ struct nfs_open_context *alloc_nfs_open_context(struct path *path, struct rpc_cr ctx->mode = f_mode; ctx->flags = 0; ctx->error = 0; - ctx->dir_cookie = 0; nfs_init_lock_context(&ctx->lock_context); ctx->lock_context.open_context = ctx; INIT_LIST_HEAD(&ctx->list); diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index cb2add401f25..4b851a02f7f3 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -95,7 +95,10 @@ struct nfs_open_context { int error; struct list_head list; +}; +struct nfs_open_dir_context { + struct rpc_cred *cred; __u64 dir_cookie; }; -- cgit v1.2.3 From 8ef2ce3e16d9bec6cf015207c1c82a5b864046ac Mon Sep 17 00:00:00 2001 From: Bryan Schumaker <bjschuma@netapp.com> Date: Wed, 23 Mar 2011 15:04:31 -0400 Subject: NFS: Detect loops in a readdir due to bad cookies Some filesystems (such as ext4) can return the same cookie value for multiple files. If we try to start a readdir with one of these cookies, the server will return the first file found with a cookie of the same value. This can cause the client to enter an infinite loop. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/dir.c | 28 +++++++++++++++++++++++++++- include/linux/nfs_fs.h | 2 ++ 2 files changed, 29 insertions(+), 1 deletion(-) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index cda73814f666..db87a7d1109b 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -139,7 +139,9 @@ static struct nfs_open_dir_context *alloc_nfs_open_dir_context(struct rpc_cred * struct nfs_open_dir_context *ctx; ctx = kmalloc(sizeof(*ctx), GFP_KERNEL); if (ctx != NULL) { + ctx->duped = 0; ctx->dir_cookie = 0; + ctx->dup_cookie = 0; ctx->cred = get_rpccred(cred); } else ctx = ERR_PTR(-ENOMEM); @@ -321,6 +323,7 @@ int nfs_readdir_search_for_pos(struct nfs_cache_array *array, nfs_readdir_descri { loff_t diff = desc->file->f_pos - desc->current_index; unsigned int index; + struct nfs_open_dir_context *ctx = desc->file->private_data; if (diff < 0) goto out_eof; @@ -333,6 +336,7 @@ int nfs_readdir_search_for_pos(struct nfs_cache_array *array, nfs_readdir_descri index = (unsigned int)diff; *desc->dir_cookie = array->array[index].cookie; desc->cache_entry_index = index; + ctx->duped = 0; return 0; out_eof: desc->eof = 1; @@ -343,11 +347,18 @@ static int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_descriptor_t *desc) { int i; + loff_t new_pos; int status = -EAGAIN; + struct nfs_open_dir_context *ctx = desc->file->private_data; for (i = 0; i < array->size; i++) { if (array->array[i].cookie == *desc->dir_cookie) { - desc->file->f_pos = desc->current_index + i; + new_pos = desc->current_index + i; + if (new_pos < desc->file->f_pos) { + ctx->dup_cookie = *desc->dir_cookie; + ctx->duped = 1; + } + desc->file->f_pos = new_pos; desc->cache_entry_index = i; return 0; } @@ -732,6 +743,20 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc, void *dirent, int i = 0; int res = 0; struct nfs_cache_array *array = NULL; + struct nfs_open_dir_context *ctx = file->private_data; + + if (ctx->duped != 0 && ctx->dup_cookie == *desc->dir_cookie) { + if (printk_ratelimit()) { + pr_notice("NFS: directory %s/%s contains a readdir loop. " + "Please contact your server vendor. " + "Offending cookie: %llu\n", + file->f_dentry->d_parent->d_name.name, + file->f_dentry->d_name.name, + *desc->dir_cookie); + } + res = -ELOOP; + goto out; + } array = nfs_readdir_get_array(desc->page); if (IS_ERR(array)) { @@ -914,6 +939,7 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin) if (offset != filp->f_pos) { filp->f_pos = offset; dir_ctx->dir_cookie = 0; + dir_ctx->duped = 0; } out: mutex_unlock(&inode->i_mutex); diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 4b851a02f7f3..4179c368844b 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -100,6 +100,8 @@ struct nfs_open_context { struct nfs_open_dir_context { struct rpc_cred *cred; __u64 dir_cookie; + __u64 dup_cookie; + int duped; }; /* -- cgit v1.2.3 From 406b6f974dae76a5b795d5c251d11c979a4e509b Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@davemloft.net> Date: Tue, 22 Mar 2011 21:56:23 -0700 Subject: ipv4: Fallback to FIB local table in __ip_dev_find(). In commit 9435eb1cf0b76b323019cebf8d16762a50a12a19 ("ipv4: Implement __ip_dev_find using new interface address hash.") we reimplemented __ip_dev_find() so that it doesn't have to do a full FIB table lookup. Instead, it consults a hash table of addresses configured to interfaces. This works identically to the old code in all except one case, and that is for loopback subnets. The old code would match the loopback device for any IP address that falls within a subnet configured to the loopback device. Handle this corner case by doing the FIB lookup. We could implement this via inet_addr_onlink() but: 1) Someone could configure many addresses to loopback and inet_addr_onlink() is a simple list traversal. 2) We know the old code works. Reported-by: Julian Anastasov <ja@ssi.bg> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/devinet.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index d5a4553bebc3..5345b0bee6df 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -64,6 +64,8 @@ #include <net/rtnetlink.h> #include <net/net_namespace.h> +#include "fib_lookup.h" + static struct ipv4_devconf ipv4_devconf = { .data = { [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1, @@ -151,6 +153,20 @@ struct net_device *__ip_dev_find(struct net *net, __be32 addr, bool devref) break; } } + if (!result) { + struct flowi4 fl4 = { .daddr = addr }; + struct fib_result res = { 0 }; + struct fib_table *local; + + /* Fallback to FIB local table so that communication + * over loopback subnets work. + */ + local = fib_get_table(net, RT_TABLE_LOCAL); + if (local && + !fib_table_lookup(local, &fl4, &res, FIB_LOOKUP_NOREF) && + res.type == RTN_LOCAL) + result = FIB_RES_DEV(res); + } if (result && devref) dev_hold(result); rcu_read_unlock(); -- cgit v1.2.3 From eb49a97363f020c1d7eef8bcd93865726b1fa11d Mon Sep 17 00:00:00 2001 From: Eric Dumazet <eric.dumazet@gmail.com> Date: Wed, 23 Mar 2011 12:18:15 -0700 Subject: ipv4: fix ip_rt_update_pmtu() commit 2c8cec5c10bc (Cache learned PMTU information in inetpeer) added an extra inet_putpeer() call in ip_rt_update_pmtu(). This results in various problems, since we can free one inetpeer, while it is still in use. Ref: http://www.spinics.net/lists/netdev/msg159121.html Reported-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/route.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 870b5182ddd8..34921b0d3f8e 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1593,8 +1593,6 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu) rt->rt_peer_genid = rt_peer_genid(); } check_peer_pmtu(dst, peer); - - inet_putpeer(peer); } } -- cgit v1.2.3 From be36cacdddcc119ef7b33ae0b91631c3535a75ca Mon Sep 17 00:00:00 2001 From: Johannes Berg <johannes.berg@intel.com> Date: Tue, 22 Mar 2011 11:00:37 +0100 Subject: iwlagn: fix error in command waiting Clearly a mistake, since pointers won't suddenly change their value... Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index 2003c1d4295f..08ccb9496f76 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -2265,7 +2265,7 @@ signed long iwlagn_wait_notification(struct iwl_priv *priv, int ret; ret = wait_event_timeout(priv->_agn.notif_waitq, - &wait_entry->triggered, + wait_entry->triggered, timeout); spin_lock_bh(&priv->_agn.notif_wait_lock); -- cgit v1.2.3 From a3ad38e87eead6ce748c6e4eec0571ce53b5a0c2 Mon Sep 17 00:00:00 2001 From: "armadefuego@gmail.com" <armadefuego@gmail.com> Date: Tue, 22 Mar 2011 09:49:15 -0700 Subject: orinoco: Clear dangling pointer on hardware busy On hardware busy the scan request pointer should be cleared, as higher levels will release. This avoids a crash when that pointer is erroneously used later. Signed-off-by: Joseph J. Gunn <armadefuego@yahoo.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/orinoco/cfg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/orinoco/cfg.c b/drivers/net/wireless/orinoco/cfg.c index 09fae2f0ea08..736bbb9bd1d0 100644 --- a/drivers/net/wireless/orinoco/cfg.c +++ b/drivers/net/wireless/orinoco/cfg.c @@ -153,6 +153,9 @@ static int orinoco_scan(struct wiphy *wiphy, struct net_device *dev, priv->scan_request = request; err = orinoco_hw_trigger_scan(priv, request->ssids); + /* On error the we aren't processing the request */ + if (err) + priv->scan_request = NULL; return err; } -- cgit v1.2.3 From 19b9675069cb06ae17d1595ac517d475d75e6bb9 Mon Sep 17 00:00:00 2001 From: Senthil Balasubramanian <senthilkumar@atheros.com> Date: Wed, 23 Mar 2011 23:07:21 +0530 Subject: ath9k: Fix kernel panic caused by invalid rate index access. With the recent tx status optimization in mac80211, we bail out as and and when invalid rate index is found. So the behavior of resetting rate idx to -1 and count to 0 has changed for the rate indexes that were not part of the driver's retry series. This has resulted in ath9k using incorrect rate table index which caused the system to panic. Ideally ath9k need to loop only for the indexes that were part of the retry series and so simply use hw->max_rates as the loop counter. Pasted the stack trace of the panic issue for reference. [ 754.093192] BUG: unable to handle kernel paging request at ffff88046a9025b0 [ 754.093256] IP: [<ffffffffa02eac49>] ath_tx_status+0x209/0x2f0 [ath9k] [ 754.094888] Call Trace: [ 754.094903] <IRQ> [ 754.094928] [<ffffffffa051f883>] ieee80211_tx_status+0x203/0x9e0 [mac80211] [ 754.094975] [<ffffffffa053e305>] ? __ieee80211_wake_queue+0x125/0x140 [mac80211] [ 754.095017] [<ffffffffa02e66c9>] ath_tx_complete_buf+0x1b9/0x370 [ath9k] [ 754.095054] [<ffffffffa02e6fcf>] ath_tx_complete_aggr+0x51f/0xb50 [ath9k] [ 754.095098] [<ffffffffa05382a3>] ? ieee80211_prepare_and_rx_handle+0x173/0xab0 [mac80211] [ 754.095148] [<ffffffff81350e62>] ? _raw_spin_unlock_irqrestore+0x32/0x40 [ 754.095186] [<ffffffffa02e9735>] ath_tx_tasklet+0x365/0x4b0 [ath9k] [ 754.095224] [<ffffffff8107a2a2>] ? clockevents_program_event+0x62/0xa0 [ 754.095261] [<ffffffffa02e2628>] ath9k_tasklet+0x168/0x1c0 [ath9k] [ 754.095298] [<ffffffff8105599b>] tasklet_action+0x6b/0xe0 [ 754.095331] [<ffffffff81056278>] __do_softirq+0x98/0x120 [ 754.095361] [<ffffffff8100cd5c>] call_softirq+0x1c/0x30 [ 754.095393] [<ffffffff8100efb5>] do_softirq+0x65/0xa0 [ 754.095423] [<ffffffff810563fd>] irq_exit+0x8d/0x90 [ 754.095453] [<ffffffff8100ebc1>] do_IRQ+0x61/0xe0 [ 754.095482] [<ffffffff81351413>] ret_from_intr+0x0/0x15 [ 754.095513] <EOI> [ 754.095531] [<ffffffff81014375>] ? native_sched_clock+0x15/0x70 [ 754.096475] [<ffffffffa02bcfa6>] ? acpi_idle_enter_bm+0x24d/0x285 [processor] [ 754.096475] [<ffffffffa02bcf9f>] ? acpi_idle_enter_bm+0x246/0x285 [processor] [ 754.096475] [<ffffffff8127fab2>] cpuidle_idle_call+0x82/0x100 [ 754.096475] [<ffffffff8100a236>] cpu_idle+0xa6/0xf0 [ 754.096475] [<ffffffff81339bc1>] rest_init+0x91/0xa0 [ 754.096475] [<ffffffff814efccd>] start_kernel+0x3fd/0x408 [ 754.096475] [<ffffffff814ef347>] x86_64_start_reservations+0x132/0x136 [ 754.096475] [<ffffffff814ef451>] x86_64_start_kernel+0x106/0x115 [ 754.096475] RIP [<ffffffffa02eac49>] ath_tx_status+0x209/0x2f0 [ath9k] Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/ath/ath9k/rc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 960d717ca7c2..a3241cd089b1 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -1328,7 +1328,7 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, hdr = (struct ieee80211_hdr *)skb->data; fc = hdr->frame_control; - for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + for (i = 0; i < sc->hw->max_rates; i++) { struct ieee80211_tx_rate *rate = &tx_info->status.rates[i]; if (!rate->count) break; -- cgit v1.2.3 From d78f4b3e2c4dfb9487624f7157af04ab4260e189 Mon Sep 17 00:00:00 2001 From: Senthil Balasubramanian <senthilkumar@atheros.com> Date: Wed, 23 Mar 2011 23:07:22 +0530 Subject: ath9k: Fix TX queue stuck issue. commit 86271e460a66003dc1f4cbfd845adafb790b7587 introduced a regression that caused mac80211 queues in stopped state. ath_drain_all_txq is called in driver flush which would reset the stopped flag and the mac80211 queues were never started after that. iperf traffic is completely stalled due to this issue. Restart the mac80211 queues in driver flush only if the txqs were drained. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/ath/ath9k/main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 115f162c617a..524825720a09 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2160,6 +2160,8 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop) if (!ath_drain_all_txq(sc, false)) ath_reset(sc, false); + ieee80211_wake_queues(hw); + out: ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0); mutex_unlock(&sc->mutex); -- cgit v1.2.3 From 3b9038912828384e38d82409c281124631c8533b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 00:24:11 +0100 Subject: genirq; Remove the last leftovers of the old sparse irq code All users converted. Get rid of it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- include/linux/irqdesc.h | 7 ------- kernel/irq/irqdesc.c | 14 -------------- 2 files changed, 21 deletions(-) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 00218371518b..0b30662bc36c 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -100,13 +100,6 @@ struct irq_desc { extern struct irq_desc irq_desc[NR_IRQS]; #endif -/* Will be removed once the last users in power and sh are gone */ -extern struct irq_desc *irq_to_desc_alloc_node(unsigned int irq, int node); -static inline struct irq_desc *move_irq_desc(struct irq_desc *desc, int node) -{ - return desc; -} - #ifdef CONFIG_GENERIC_HARDIRQS static inline struct irq_data *irq_desc_get_irq_data(struct irq_desc *desc) diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index dbccc799407f..6fb014f172f7 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -198,15 +198,6 @@ err: return -ENOMEM; } -struct irq_desc * __ref irq_to_desc_alloc_node(unsigned int irq, int node) -{ - int res = irq_alloc_descs(irq, irq, 1, node); - - if (res == -EEXIST || res == irq) - return irq_to_desc(irq); - return NULL; -} - static int irq_expand_nr_irqs(unsigned int nr) { if (nr > IRQ_BITMAP_BITS) @@ -283,11 +274,6 @@ struct irq_desc *irq_to_desc(unsigned int irq) return (irq < NR_IRQS) ? irq_desc + irq : NULL; } -struct irq_desc *irq_to_desc_alloc_node(unsigned int irq, int node) -{ - return irq_to_desc(irq); -} - static void free_desc(unsigned int irq) { dynamic_irq_cleanup(irq); -- cgit v1.2.3 From d3e17deb1790ee2123e9d11420be6411d1768b47 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Tue, 22 Mar 2011 17:08:15 +0100 Subject: genirq: Provide a lockdep helper Some irq chips need to call genirq functions for nested chips from their callbacks. That upsets lockdep. So they need to set a different lock class for those nested chips. Provide a helper function to avoid open access to irq_desc. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- include/linux/irqdesc.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 0b30662bc36c..1595f9176b43 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -191,6 +191,15 @@ static inline void __set_irq_handler_unlocked(int irq, desc->handle_irq = handler; } +static inline void +irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class) +{ + struct irq_desc *desc = irq_to_desc(irq); + + if (desc) + lockdep_set_class(&desc->lock, class); +} + #ifdef CONFIG_IRQ_PREFLOW_FASTEOI static inline void __irq_set_preflow_handler(unsigned int irq, irq_preflow_handler_t handler) -- cgit v1.2.3 From a2e8461a2ce5e8140b7374eb68af0d09e36e07ff Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 13:10:31 +0100 Subject: genirq: Provide locked setter for chip, handler, name Some irq_set_type() callbacks need to change the chip and the handler when the trigger mode changes. We have already a (misnomed) setter function for the handler which can be called from irq_set_type(). Provide one which allows to set chip and name as well. Put the misnomed function under the COMPAT switch and provide a replacement. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- include/linux/irqdesc.h | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 1595f9176b43..15e6c3905f41 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -171,25 +171,44 @@ static inline int irq_has_action(unsigned int irq) return desc->action != NULL; } -#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT -static inline int irq_balancing_disabled(unsigned int irq) +/* caller has locked the irq_desc and both params are valid */ +static inline void __irq_set_handler_locked(unsigned int irq, + irq_flow_handler_t handler) { struct irq_desc *desc; desc = irq_to_desc(irq); - return desc->status & IRQ_NO_BALANCING_MASK; + desc->handle_irq = handler; } -#endif /* caller has locked the irq_desc and both params are valid */ +static inline void +__irq_set_chip_handler_name_locked(unsigned int irq, struct irq_chip *chip, + irq_flow_handler_t handler, const char *name) +{ + struct irq_desc *desc; + + desc = irq_to_desc(irq); + irq_desc_get_irq_data(desc)->chip = chip; + desc->handle_irq = handler; + desc->name = name; +} + +#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT static inline void __set_irq_handler_unlocked(int irq, irq_flow_handler_t handler) +{ + __irq_set_handler_locked(irq, handler); +} + +static inline int irq_balancing_disabled(unsigned int irq) { struct irq_desc *desc; desc = irq_to_desc(irq); - desc->handle_irq = handler; + return desc->status & IRQ_NO_BALANCING_MASK; } +#endif static inline void irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class) -- cgit v1.2.3 From b6055006b26de15aaa66870809b3d63b334737ce Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:37:23 +0000 Subject: mlx4_en: going out of range of TX rings when reporting stats Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/en_port.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/mlx4/en_port.c b/drivers/net/mlx4/en_port.c index 7f5a3221e0c1..a2b0bc4ada5d 100644 --- a/drivers/net/mlx4/en_port.c +++ b/drivers/net/mlx4/en_port.c @@ -206,7 +206,7 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset) } stats->tx_packets = 0; stats->tx_bytes = 0; - for (i = 0; i <= priv->tx_ring_num; i++) { + for (i = 0; i < priv->tx_ring_num; i++) { stats->tx_packets += priv->tx_ring[i].packets; stats->tx_bytes += priv->tx_ring[i].bytes; } -- cgit v1.2.3 From 39f17b44aaaa6bc47ded0bbb17fc617ec6cf08bb Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:37:28 +0000 Subject: mlx4_en: moderation parameters are not reseted. Instead of reseting the module parameters each ifup or mtu change, they are being set once at device initialization Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/en_netdev.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c index 897f576b8b17..56627c26d918 100644 --- a/drivers/net/mlx4/en_netdev.c +++ b/drivers/net/mlx4/en_netdev.c @@ -801,7 +801,6 @@ static int mlx4_en_open(struct net_device *dev) priv->rx_ring[i].packets = 0; } - mlx4_en_set_default_moderation(priv); err = mlx4_en_start_port(dev); if (err) en_err(priv, "Failed starting port:%d\n", priv->port); @@ -932,7 +931,6 @@ static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) en_dbg(DRV, priv, "Change MTU called with card down!?\n"); } else { mlx4_en_stop_port(dev); - mlx4_en_set_default_moderation(priv); err = mlx4_en_start_port(dev); if (err) { en_err(priv, "Failed restarting port:%d\n", @@ -1080,6 +1078,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); priv->registered = 1; + mlx4_en_set_default_moderation(priv); queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); return 0; -- cgit v1.2.3 From 46afd0fb01d62ee217f142ab9c26054304ab7454 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:37:36 +0000 Subject: mlx4_en: optimize adaptive moderation algorithm for better latency Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/en_netdev.c | 18 +++++------------- drivers/net/mlx4/mlx4_en.h | 1 + 2 files changed, 6 insertions(+), 13 deletions(-) diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c index 56627c26d918..b1180dd5e173 100644 --- a/drivers/net/mlx4/en_netdev.c +++ b/drivers/net/mlx4/en_netdev.c @@ -417,7 +417,6 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) unsigned long avg_pkt_size; unsigned long rx_packets; unsigned long rx_bytes; - unsigned long rx_byte_diff; unsigned long tx_packets; unsigned long tx_pkt_diff; unsigned long rx_pkt_diff; @@ -441,25 +440,20 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) rx_pkt_diff = ((unsigned long) (rx_packets - priv->last_moder_packets)); packets = max(tx_pkt_diff, rx_pkt_diff); - rx_byte_diff = rx_bytes - priv->last_moder_bytes; - rx_byte_diff = rx_byte_diff ? rx_byte_diff : 1; rate = packets * HZ / period; avg_pkt_size = packets ? ((unsigned long) (rx_bytes - priv->last_moder_bytes)) / packets : 0; /* Apply auto-moderation only when packet rate exceeds a rate that * it matters */ - if (rate > MLX4_EN_RX_RATE_THRESH) { + if (rate > MLX4_EN_RX_RATE_THRESH && avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) { /* If tx and rx packet rates are not balanced, assume that * traffic is mainly BW bound and apply maximum moderation. * Otherwise, moderate according to packet rate */ - if (2 * tx_pkt_diff > 3 * rx_pkt_diff && - rx_pkt_diff / rx_byte_diff < - MLX4_EN_SMALL_PKT_SIZE) - moder_time = priv->rx_usecs_low; - else if (2 * rx_pkt_diff > 3 * tx_pkt_diff) + if (2 * tx_pkt_diff > 3 * rx_pkt_diff || + 2 * rx_pkt_diff > 3 * tx_pkt_diff) { moder_time = priv->rx_usecs_high; - else { + } else { if (rate < priv->pkt_rate_low) moder_time = priv->rx_usecs_low; else if (rate > priv->pkt_rate_high) @@ -471,9 +465,7 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) priv->rx_usecs_low; } } else { - /* When packet rate is low, use default moderation rather than - * 0 to prevent interrupt storms if traffic suddenly increases */ - moder_time = priv->rx_usecs; + moder_time = priv->rx_usecs_low; } en_dbg(INTR, priv, "tx rate:%lu rx_rate:%lu\n", diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h index dfed6a07c2d7..5387c4e9f295 100644 --- a/drivers/net/mlx4/mlx4_en.h +++ b/drivers/net/mlx4/mlx4_en.h @@ -124,6 +124,7 @@ enum { #define MLX4_EN_RX_SIZE_THRESH 1024 #define MLX4_EN_RX_RATE_THRESH (1000000 / MLX4_EN_RX_COAL_TIME_HIGH) #define MLX4_EN_SAMPLE_INTERVAL 0 +#define MLX4_EN_AVG_PKT_SMALL 256 #define MLX4_EN_AUTO_CONF 0xffff -- cgit v1.2.3 From 908222655b38005483d64385e06341a38647fdf1 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:37:41 +0000 Subject: mlx4_en: bringing link up when registering netdevice Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/en_netdev.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c index b1180dd5e173..5727bf5ad452 100644 --- a/drivers/net/mlx4/en_netdev.c +++ b/drivers/net/mlx4/en_netdev.c @@ -1069,6 +1069,23 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num); en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); + /* Configure port */ + err = mlx4_SET_PORT_general(mdev->dev, priv->port, + MLX4_EN_MIN_MTU, + 0, 0, 0, 0); + if (err) { + en_err(priv, "Failed setting port general configurations " + "for port %d, with error %d\n", priv->port, err); + goto out; + } + + /* Init port */ + en_warn(priv, "Initializing port\n"); + err = mlx4_INIT_PORT(mdev->dev, priv->port); + if (err) { + en_err(priv, "Failed Initializing port\n"); + goto out; + } priv->registered = 1; mlx4_en_set_default_moderation(priv); queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); -- cgit v1.2.3 From 0b7ca5a928e2271bbc225e9e1ac1f22e9fbee54f Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:37:47 +0000 Subject: mlx4: Changing interrupt scheme Adding a pool of MSI-X vectors and EQs that can be used explicitly by mlx4_core customers (mlx4_ib, mlx4_en). The consumers will assign their own names to the interrupt vectors. Those vectors are not opened at mlx4 device initialization, opened by demand. Changed the max number of possible EQs according to the new scheme, no longer relies on on number of cores. The new functionality is exposed through mlx4_assign_eq() and mlx4_release_eq(). Customers that do not use the new API will get completion vectors as before. Signed-off-by: Markuze Alex <markuze@mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/cq.c | 2 +- drivers/net/mlx4/eq.c | 107 +++++++++++++++++++++++++++++++++++++++++--- drivers/net/mlx4/main.c | 20 +++++++-- drivers/net/mlx4/mlx4.h | 6 +++ drivers/net/mlx4/profile.c | 4 +- include/linux/mlx4/device.h | 8 ++++ 6 files changed, 134 insertions(+), 13 deletions(-) diff --git a/drivers/net/mlx4/cq.c b/drivers/net/mlx4/cq.c index 7cd34e9c7c7e..bd8ef9f2fa71 100644 --- a/drivers/net/mlx4/cq.c +++ b/drivers/net/mlx4/cq.c @@ -198,7 +198,7 @@ int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt, u64 mtt_addr; int err; - if (vector >= dev->caps.num_comp_vectors) + if (vector > dev->caps.num_comp_vectors + dev->caps.comp_pool) return -EINVAL; cq->vector = vector; diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c index 552d0fce6f67..506cfd0372ec 100644 --- a/drivers/net/mlx4/eq.c +++ b/drivers/net/mlx4/eq.c @@ -42,7 +42,7 @@ #include "fw.h" enum { - MLX4_IRQNAME_SIZE = 64 + MLX4_IRQNAME_SIZE = 32 }; enum { @@ -317,8 +317,8 @@ static int mlx4_num_eq_uar(struct mlx4_dev *dev) * we need to map, take the difference of highest index and * the lowest index we'll use and add 1. */ - return (dev->caps.num_comp_vectors + 1 + dev->caps.reserved_eqs) / 4 - - dev->caps.reserved_eqs / 4 + 1; + return (dev->caps.num_comp_vectors + 1 + dev->caps.reserved_eqs + + dev->caps.comp_pool)/4 - dev->caps.reserved_eqs/4 + 1; } static void __iomem *mlx4_get_eq_uar(struct mlx4_dev *dev, struct mlx4_eq *eq) @@ -496,16 +496,32 @@ static void mlx4_free_eq(struct mlx4_dev *dev, static void mlx4_free_irqs(struct mlx4_dev *dev) { struct mlx4_eq_table *eq_table = &mlx4_priv(dev)->eq_table; - int i; + struct mlx4_priv *priv = mlx4_priv(dev); + int i, vec; if (eq_table->have_irq) free_irq(dev->pdev->irq, dev); + for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i) if (eq_table->eq[i].have_irq) { free_irq(eq_table->eq[i].irq, eq_table->eq + i); eq_table->eq[i].have_irq = 0; } + for (i = 0; i < dev->caps.comp_pool; i++) { + /* + * Freeing the assigned irq's + * all bits should be 0, but we need to validate + */ + if (priv->msix_ctl.pool_bm & 1ULL << i) { + /* NO need protecting*/ + vec = dev->caps.num_comp_vectors + 1 + i; + free_irq(priv->eq_table.eq[vec].irq, + &priv->eq_table.eq[vec]); + } + } + + kfree(eq_table->irq_names); } @@ -578,7 +594,8 @@ int mlx4_init_eq_table(struct mlx4_dev *dev) (priv->eq_table.inta_pin < 32 ? 4 : 0); priv->eq_table.irq_names = - kmalloc(MLX4_IRQNAME_SIZE * (dev->caps.num_comp_vectors + 1), + kmalloc(MLX4_IRQNAME_SIZE * (dev->caps.num_comp_vectors + 1 + + dev->caps.comp_pool), GFP_KERNEL); if (!priv->eq_table.irq_names) { err = -ENOMEM; @@ -601,6 +618,22 @@ int mlx4_init_eq_table(struct mlx4_dev *dev) if (err) goto err_out_comp; + /*if additional completion vectors poolsize is 0 this loop will not run*/ + for (i = dev->caps.num_comp_vectors + 1; + i < dev->caps.num_comp_vectors + dev->caps.comp_pool + 1; ++i) { + + err = mlx4_create_eq(dev, dev->caps.num_cqs - + dev->caps.reserved_cqs + + MLX4_NUM_SPARE_EQE, + (dev->flags & MLX4_FLAG_MSI_X) ? i : 0, + &priv->eq_table.eq[i]); + if (err) { + --i; + goto err_out_unmap; + } + } + + if (dev->flags & MLX4_FLAG_MSI_X) { const char *eq_name; @@ -686,7 +719,7 @@ void mlx4_cleanup_eq_table(struct mlx4_dev *dev) mlx4_free_irqs(dev); - for (i = 0; i < dev->caps.num_comp_vectors + 1; ++i) + for (i = 0; i < dev->caps.num_comp_vectors + dev->caps.comp_pool + 1; ++i) mlx4_free_eq(dev, &priv->eq_table.eq[i]); mlx4_unmap_clr_int(dev); @@ -743,3 +776,65 @@ int mlx4_test_interrupts(struct mlx4_dev *dev) return err; } EXPORT_SYMBOL(mlx4_test_interrupts); + +int mlx4_assign_eq(struct mlx4_dev *dev, char* name, int * vector) +{ + + struct mlx4_priv *priv = mlx4_priv(dev); + int vec = 0, err = 0, i; + + spin_lock(&priv->msix_ctl.pool_lock); + for (i = 0; !vec && i < dev->caps.comp_pool; i++) { + if (~priv->msix_ctl.pool_bm & 1ULL << i) { + priv->msix_ctl.pool_bm |= 1ULL << i; + vec = dev->caps.num_comp_vectors + 1 + i; + snprintf(priv->eq_table.irq_names + + vec * MLX4_IRQNAME_SIZE, + MLX4_IRQNAME_SIZE, "%s", name); + err = request_irq(priv->eq_table.eq[vec].irq, + mlx4_msi_x_interrupt, 0, + &priv->eq_table.irq_names[vec<<5], + priv->eq_table.eq + vec); + if (err) { + /*zero out bit by fliping it*/ + priv->msix_ctl.pool_bm ^= 1 << i; + vec = 0; + continue; + /*we dont want to break here*/ + } + eq_set_ci(&priv->eq_table.eq[vec], 1); + } + } + spin_unlock(&priv->msix_ctl.pool_lock); + + if (vec) { + *vector = vec; + } else { + *vector = 0; + err = (i == dev->caps.comp_pool) ? -ENOSPC : err; + } + return err; +} +EXPORT_SYMBOL(mlx4_assign_eq); + +void mlx4_release_eq(struct mlx4_dev *dev, int vec) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + /*bm index*/ + int i = vec - dev->caps.num_comp_vectors - 1; + + if (likely(i >= 0)) { + /*sanity check , making sure were not trying to free irq's + Belonging to a legacy EQ*/ + spin_lock(&priv->msix_ctl.pool_lock); + if (priv->msix_ctl.pool_bm & 1ULL << i) { + free_irq(priv->eq_table.eq[vec].irq, + &priv->eq_table.eq[vec]); + priv->msix_ctl.pool_bm &= ~(1ULL << i); + } + spin_unlock(&priv->msix_ctl.pool_lock); + } + +} +EXPORT_SYMBOL(mlx4_release_eq); + diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index 2765a3ce9c24..517ca34f5b37 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -969,13 +969,15 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); struct msix_entry *entries; - int nreq; + int nreq = min_t(int, dev->caps.num_ports * + min_t(int, num_online_cpus() + 1, MAX_MSIX_P_PORT) + + MSIX_LEGACY_SZ, MAX_MSIX); int err; int i; if (msi_x) { nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs, - num_possible_cpus() + 1); + nreq); entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL); if (!entries) goto no_msi; @@ -998,7 +1000,15 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) goto no_msi; } - dev->caps.num_comp_vectors = nreq - 1; + if (nreq < + MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) { + /*Working in legacy mode , all EQ's shared*/ + dev->caps.comp_pool = 0; + dev->caps.num_comp_vectors = nreq - 1; + } else { + dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ; + dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1; + } for (i = 0; i < nreq; ++i) priv->eq_table.eq[i].irq = entries[i].vector; @@ -1010,6 +1020,7 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) no_msi: dev->caps.num_comp_vectors = 1; + dev->caps.comp_pool = 0; for (i = 0; i < 2; ++i) priv->eq_table.eq[i].irq = dev->pdev->irq; @@ -1151,6 +1162,9 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) if (err) goto err_close; + priv->msix_ctl.pool_bm = 0; + spin_lock_init(&priv->msix_ctl.pool_lock); + mlx4_enable_msi_x(dev); err = mlx4_setup_hca(dev); diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index 0da5bb7285b4..67ee8dacae79 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -282,6 +282,11 @@ struct mlx4_sense { struct delayed_work sense_poll; }; +struct mlx4_msix_ctl { + u64 pool_bm; + spinlock_t pool_lock; +}; + struct mlx4_priv { struct mlx4_dev dev; @@ -313,6 +318,7 @@ struct mlx4_priv { struct mlx4_port_info port[MLX4_MAX_PORTS + 1]; struct mlx4_sense sense; struct mutex port_mutex; + struct mlx4_msix_ctl msix_ctl; }; static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev) diff --git a/drivers/net/mlx4/profile.c b/drivers/net/mlx4/profile.c index e749f82865fe..b967647d0c76 100644 --- a/drivers/net/mlx4/profile.c +++ b/drivers/net/mlx4/profile.c @@ -107,9 +107,7 @@ u64 mlx4_make_profile(struct mlx4_dev *dev, profile[MLX4_RES_AUXC].num = request->num_qp; profile[MLX4_RES_SRQ].num = request->num_srq; profile[MLX4_RES_CQ].num = request->num_cq; - profile[MLX4_RES_EQ].num = min_t(unsigned, dev_cap->max_eqs, - dev_cap->reserved_eqs + - num_possible_cpus() + 1); + profile[MLX4_RES_EQ].num = min_t(unsigned, dev_cap->max_eqs, MAX_MSIX); profile[MLX4_RES_DMPT].num = request->num_mpt; profile[MLX4_RES_CMPT].num = MLX4_NUM_CMPTS; profile[MLX4_RES_MTT].num = request->num_mtt; diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 049214642036..78380823d827 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -39,6 +39,11 @@ #include <asm/atomic.h> +#define MAX_MSIX_P_PORT 17 +#define MAX_MSIX 64 +#define MSIX_LEGACY_SZ 4 +#define MIN_MSIX_P_PORT 5 + enum { MLX4_FLAG_MSI_X = 1 << 0, MLX4_FLAG_OLD_PORT_CMDS = 1 << 1, @@ -223,6 +228,7 @@ struct mlx4_caps { int num_eqs; int reserved_eqs; int num_comp_vectors; + int comp_pool; int num_mpts; int num_mtt_segs; int mtts_per_seg; @@ -526,5 +532,7 @@ void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr, int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr); int mlx4_SYNC_TPT(struct mlx4_dev *dev); int mlx4_test_interrupts(struct mlx4_dev *dev); +int mlx4_assign_eq(struct mlx4_dev *dev, char* name , int* vector); +void mlx4_release_eq(struct mlx4_dev *dev, int vec); #endif /* MLX4_DEVICE_H */ -- cgit v1.2.3 From 1fb9876e9bf895ea4127ff17180f1b2ab37771b6 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:37:52 +0000 Subject: mlx4_en: using new mlx4 interrupt scheme Each RX ring will have its own interrupt vector, and TX rings will share one (we mostly use polling for TX completions). The vectors are assigned first time device is opened, and its name includes the interface name and ring number. Signed-off-by: Markuze Alex <markuze@mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/en_cq.c | 38 +++++++++++++++++++++++++++++++------- drivers/net/mlx4/en_ethtool.c | 2 +- drivers/net/mlx4/en_main.c | 20 +++++++++++--------- drivers/net/mlx4/en_netdev.c | 18 ++++++++++++++---- drivers/net/mlx4/mlx4_en.h | 7 +++++-- 5 files changed, 62 insertions(+), 23 deletions(-) diff --git a/drivers/net/mlx4/en_cq.c b/drivers/net/mlx4/en_cq.c index 21786ad4455e..ec4b6d047fe0 100644 --- a/drivers/net/mlx4/en_cq.c +++ b/drivers/net/mlx4/en_cq.c @@ -51,13 +51,10 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv, int err; cq->size = entries; - if (mode == RX) { + if (mode == RX) cq->buf_size = cq->size * sizeof(struct mlx4_cqe); - cq->vector = ring % mdev->dev->caps.num_comp_vectors; - } else { + else cq->buf_size = sizeof(struct mlx4_cqe); - cq->vector = 0; - } cq->ring = ring; cq->is_tx = mode; @@ -80,7 +77,8 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv, int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq) { struct mlx4_en_dev *mdev = priv->mdev; - int err; + int err = 0; + char name[25]; cq->dev = mdev->pndev[priv->port]; cq->mcq.set_ci_db = cq->wqres.db.db; @@ -89,6 +87,29 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq) *cq->mcq.arm_db = 0; memset(cq->buf, 0, cq->buf_size); + if (cq->is_tx == RX) { + if (mdev->dev->caps.comp_pool) { + if (!cq->vector) { + sprintf(name , "%s-rx-%d", priv->dev->name, cq->ring); + if (mlx4_assign_eq(mdev->dev, name, &cq->vector)) { + cq->vector = (cq->ring + 1 + priv->port) % + mdev->dev->caps.num_comp_vectors; + mlx4_warn(mdev, "Failed Assigning an EQ to " + "%s_rx-%d ,Falling back to legacy EQ's\n", + priv->dev->name, cq->ring); + } + } + } else { + cq->vector = (cq->ring + 1 + priv->port) % + mdev->dev->caps.num_comp_vectors; + } + } else { + if (!cq->vector || !mdev->dev->caps.comp_pool) { + /*Fallback to legacy pool in case of error*/ + cq->vector = 0; + } + } + if (!cq->is_tx) cq->size = priv->rx_ring[cq->ring].actual_size; @@ -112,12 +133,15 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq) return 0; } -void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq) +void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, + bool reserve_vectors) { struct mlx4_en_dev *mdev = priv->mdev; mlx4_en_unmap_buffer(&cq->wqres.buf); mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size); + if (priv->mdev->dev->caps.comp_pool && cq->vector && !reserve_vectors) + mlx4_release_eq(priv->mdev->dev, cq->vector); cq->buf_size = 0; cq->buf = NULL; } diff --git a/drivers/net/mlx4/en_ethtool.c b/drivers/net/mlx4/en_ethtool.c index 056152b3ff58..8cfe8586ed2d 100644 --- a/drivers/net/mlx4/en_ethtool.c +++ b/drivers/net/mlx4/en_ethtool.c @@ -388,7 +388,7 @@ static int mlx4_en_set_ringparam(struct net_device *dev, mlx4_en_stop_port(dev); } - mlx4_en_free_resources(priv); + mlx4_en_free_resources(priv, true); priv->prof->tx_ring_size = tx_size; priv->prof->rx_ring_size = rx_size; diff --git a/drivers/net/mlx4/en_main.c b/drivers/net/mlx4/en_main.c index 1ff6ca6466ed..29aaa4303991 100644 --- a/drivers/net/mlx4/en_main.c +++ b/drivers/net/mlx4/en_main.c @@ -241,16 +241,18 @@ static void *mlx4_en_add(struct mlx4_dev *dev) mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) mdev->port_cnt++; - /* If we did not receive an explicit number of Rx rings, default to - * the number of completion vectors populated by the mlx4_core */ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) { - mlx4_info(mdev, "Using %d tx rings for port:%d\n", - mdev->profile.prof[i].tx_ring_num, i); - mdev->profile.prof[i].rx_ring_num = min_t(int, - roundup_pow_of_two(dev->caps.num_comp_vectors), - MAX_RX_RINGS); - mlx4_info(mdev, "Defaulting to %d rx rings for port:%d\n", - mdev->profile.prof[i].rx_ring_num, i); + if (!dev->caps.comp_pool) { + mdev->profile.prof[i].rx_ring_num = + rounddown_pow_of_two(max_t(int, MIN_RX_RINGS, + min_t(int, + dev->caps.num_comp_vectors, + MAX_RX_RINGS))); + } else { + mdev->profile.prof[i].rx_ring_num = rounddown_pow_of_two( + min_t(int, dev->caps.comp_pool/ + dev->caps.num_ports - 1 , MAX_MSIX_P_PORT - 1)); + } } /* Create our own workqueue for reset/multicast tasks diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c index 5727bf5ad452..f6ed315b4b89 100644 --- a/drivers/net/mlx4/en_netdev.c +++ b/drivers/net/mlx4/en_netdev.c @@ -557,6 +557,7 @@ int mlx4_en_start_port(struct net_device *dev) int err = 0; int i; int j; + char name[32]; if (priv->port_up) { en_dbg(DRV, priv, "start port called while port already up\n"); @@ -601,10 +602,19 @@ int mlx4_en_start_port(struct net_device *dev) goto cq_err; } + if (mdev->dev->caps.comp_pool && !priv->tx_vector) { + sprintf(name , "%s-tx", priv->dev->name); + if (mlx4_assign_eq(mdev->dev , name, &priv->tx_vector)) { + mlx4_warn(mdev, "Failed Assigning an EQ to " + "%s_tx ,Falling back to legacy " + "EQ's\n", priv->dev->name); + } + } /* Configure tx cq's and rings */ for (i = 0; i < priv->tx_ring_num; i++) { /* Configure cq */ cq = &priv->tx_cq[i]; + cq->vector = priv->tx_vector; err = mlx4_en_activate_cq(priv, cq); if (err) { en_err(priv, "Failed allocating Tx CQ\n"); @@ -819,7 +829,7 @@ static int mlx4_en_close(struct net_device *dev) return 0; } -void mlx4_en_free_resources(struct mlx4_en_priv *priv) +void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors) { int i; @@ -827,14 +837,14 @@ void mlx4_en_free_resources(struct mlx4_en_priv *priv) if (priv->tx_ring[i].tx_info) mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); if (priv->tx_cq[i].buf) - mlx4_en_destroy_cq(priv, &priv->tx_cq[i]); + mlx4_en_destroy_cq(priv, &priv->tx_cq[i], reserve_vectors); } for (i = 0; i < priv->rx_ring_num; i++) { if (priv->rx_ring[i].rx_info) mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]); if (priv->rx_cq[i].buf) - mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); + mlx4_en_destroy_cq(priv, &priv->rx_cq[i], reserve_vectors); } } @@ -896,7 +906,7 @@ void mlx4_en_destroy_netdev(struct net_device *dev) mdev->pndev[priv->port] = NULL; mutex_unlock(&mdev->state_lock); - mlx4_en_free_resources(priv); + mlx4_en_free_resources(priv, false); free_netdev(dev); } diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h index 5387c4e9f295..2db245fcd84b 100644 --- a/drivers/net/mlx4/mlx4_en.h +++ b/drivers/net/mlx4/mlx4_en.h @@ -62,6 +62,7 @@ #define MLX4_EN_PAGE_SHIFT 12 #define MLX4_EN_PAGE_SIZE (1 << MLX4_EN_PAGE_SHIFT) #define MAX_RX_RINGS 16 +#define MIN_RX_RINGS 4 #define TXBB_SIZE 64 #define HEADROOM (2048 / TXBB_SIZE + 1) #define STAMP_STRIDE 64 @@ -462,6 +463,7 @@ struct mlx4_en_priv { u16 log_rx_info; struct mlx4_en_tx_ring tx_ring[MAX_TX_RINGS]; + int tx_vector; struct mlx4_en_rx_ring rx_ring[MAX_RX_RINGS]; struct mlx4_en_cq tx_cq[MAX_TX_RINGS]; struct mlx4_en_cq rx_cq[MAX_RX_RINGS]; @@ -487,12 +489,13 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, int mlx4_en_start_port(struct net_device *dev); void mlx4_en_stop_port(struct net_device *dev); -void mlx4_en_free_resources(struct mlx4_en_priv *priv); +void mlx4_en_free_resources(struct mlx4_en_priv *priv, bool reserve_vectors); int mlx4_en_alloc_resources(struct mlx4_en_priv *priv); int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, int entries, int ring, enum cq_type mode); -void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); +void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, + bool reserve_vectors); int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); -- cgit v1.2.3 From 14c07b1358ede1664652bb9b28d9ace5fe6f7f92 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:37:59 +0000 Subject: mlx4: Wake on LAN support The driver queries the FW for WOL support. Ethtool get/set_wol is implemented accordingly. Only magic packets are supported at the time. Signed-off-by: Igor Yarovinsky <igory@mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/en_ethtool.c | 62 +++++++++++++++++++++++++++++++++++++++++-- drivers/net/mlx4/fw.c | 20 ++++++++++++++ drivers/net/mlx4/fw.h | 1 + drivers/net/mlx4/main.c | 1 + drivers/net/mlx4/mlx4_en.h | 7 +++++ include/linux/mlx4/device.h | 4 +++ 6 files changed, 93 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx4/en_ethtool.c b/drivers/net/mlx4/en_ethtool.c index 8cfe8586ed2d..c1f351f6ae57 100644 --- a/drivers/net/mlx4/en_ethtool.c +++ b/drivers/net/mlx4/en_ethtool.c @@ -131,8 +131,65 @@ static void mlx4_en_set_msglevel(struct net_device *dev, u32 val) static void mlx4_en_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) { - wol->supported = 0; - wol->wolopts = 0; + struct mlx4_en_priv *priv = netdev_priv(netdev); + int err = 0; + u64 config = 0; + + if (!priv->mdev->dev->caps.wol) { + wol->supported = 0; + wol->wolopts = 0; + return; + } + + err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); + if (err) { + en_err(priv, "Failed to get WoL information\n"); + return; + } + + if (config & MLX4_EN_WOL_MAGIC) + wol->supported = WAKE_MAGIC; + else + wol->supported = 0; + + if (config & MLX4_EN_WOL_ENABLED) + wol->wolopts = WAKE_MAGIC; + else + wol->wolopts = 0; +} + +static int mlx4_en_set_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct mlx4_en_priv *priv = netdev_priv(netdev); + u64 config = 0; + int err = 0; + + if (!priv->mdev->dev->caps.wol) + return -EOPNOTSUPP; + + if (wol->supported & ~WAKE_MAGIC) + return -EINVAL; + + err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); + if (err) { + en_err(priv, "Failed to get WoL info, unable to modify\n"); + return err; + } + + if (wol->wolopts & WAKE_MAGIC) { + config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED | + MLX4_EN_WOL_MAGIC; + } else { + config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC); + config |= MLX4_EN_WOL_DO_MODIFY; + } + + err = mlx4_wol_write(priv->mdev->dev, config, priv->port); + if (err) + en_err(priv, "Failed to set WoL information\n"); + + return err; } static int mlx4_en_get_sset_count(struct net_device *dev, int sset) @@ -442,6 +499,7 @@ const struct ethtool_ops mlx4_en_ethtool_ops = { .get_ethtool_stats = mlx4_en_get_ethtool_stats, .self_test = mlx4_en_self_test, .get_wol = mlx4_en_get_wol, + .set_wol = mlx4_en_set_wol, .get_msglevel = mlx4_en_get_msglevel, .set_msglevel = mlx4_en_set_msglevel, .get_coalesce = mlx4_en_get_coalesce, diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c index 5de1db897835..fd1c51b6197a 100644 --- a/drivers/net/mlx4/fw.c +++ b/drivers/net/mlx4/fw.c @@ -276,6 +276,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev_cap->udp_rss = field & 0x1; MLX4_GET(field, outbox, QUERY_DEV_CAP_ETH_UC_LOOPBACK_OFFSET); dev_cap->loopback_support = field & 0x1; + dev_cap->wol = field & 0x40; MLX4_GET(dev_cap->flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET); MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET); dev_cap->reserved_uars = field >> 4; @@ -908,3 +909,22 @@ int mlx4_NOP(struct mlx4_dev *dev) /* Input modifier of 0x1f means "finish as soon as possible." */ return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, 100); } + +#define MLX4_WOL_SETUP_MODE (5 << 28) +int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port) +{ + u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8; + + return mlx4_cmd_imm(dev, 0, config, in_mod, 0x3, + MLX4_CMD_MOD_STAT_CFG, MLX4_CMD_TIME_CLASS_A); +} +EXPORT_SYMBOL_GPL(mlx4_wol_read); + +int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port) +{ + u32 in_mod = MLX4_WOL_SETUP_MODE | port << 8; + + return mlx4_cmd(dev, config, in_mod, 0x1, MLX4_CMD_MOD_STAT_CFG, + MLX4_CMD_TIME_CLASS_A); +} +EXPORT_SYMBOL_GPL(mlx4_wol_write); diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h index 65cc72eb899d..f7b9cc2d1b2a 100644 --- a/drivers/net/mlx4/fw.h +++ b/drivers/net/mlx4/fw.h @@ -80,6 +80,7 @@ struct mlx4_dev_cap { u16 stat_rate_support; int udp_rss; int loopback_support; + int wol; u32 flags; int reserved_uars; int uar_size; diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index 517ca34f5b37..42d4fb477870 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -227,6 +227,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev->caps.stat_rate_support = dev_cap->stat_rate_support; dev->caps.udp_rss = dev_cap->udp_rss; dev->caps.loopback_support = dev_cap->loopback_support; + dev->caps.wol = dev_cap->wol; dev->caps.max_gso_sz = dev_cap->max_gso_sz; dev->caps.log_num_macs = log_num_mac; diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h index 2db245fcd84b..07aea8d0beeb 100644 --- a/drivers/net/mlx4/mlx4_en.h +++ b/drivers/net/mlx4/mlx4_en.h @@ -479,6 +479,13 @@ struct mlx4_en_priv { int mc_addrs_cnt; struct mlx4_en_stat_out_mbox hw_stats; int vids[128]; + bool wol; +}; + +enum mlx4_en_wol { + MLX4_EN_WOL_MAGIC = (1ULL << 61), + MLX4_EN_WOL_ENABLED = (1ULL << 62), + MLX4_EN_WOL_DO_MODIFY = (1ULL << 63), }; diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 78380823d827..2460356d2c72 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -251,6 +251,7 @@ struct mlx4_caps { u16 stat_rate_support; int udp_rss; int loopback_support; + int wol; u8 port_width_cap[MLX4_MAX_PORTS + 1]; int max_gso_sz; int reserved_qps_cnt[MLX4_NUM_QP_REGION]; @@ -535,4 +536,7 @@ int mlx4_test_interrupts(struct mlx4_dev *dev); int mlx4_assign_eq(struct mlx4_dev *dev, char* name , int* vector); void mlx4_release_eq(struct mlx4_dev *dev, int vec); +int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port); +int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port); + #endif /* MLX4_DEVICE_H */ -- cgit v1.2.3 From 725c89997e03d71b09ea3c17c997da0712b9d835 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:38:07 +0000 Subject: mlx4_en: Reporting HW revision in ethtool -i HW revision is derived from device ID and rev id. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/infiniband/hw/mlx4/main.c | 1 - drivers/net/mlx4/en_ethtool.c | 15 ++++++++++++++- drivers/net/mlx4/main.c | 2 ++ drivers/net/mlx4/mlx4_en.h | 3 +++ include/linux/mlx4/device.h | 2 +- 5 files changed, 20 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index c7a6213c6996..66e3eecfd0db 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -721,7 +721,6 @@ static int init_node_data(struct mlx4_ib_dev *dev) if (err) goto out; - dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); out: diff --git a/drivers/net/mlx4/en_ethtool.c b/drivers/net/mlx4/en_ethtool.c index c1f351f6ae57..62ace6c72b42 100644 --- a/drivers/net/mlx4/en_ethtool.c +++ b/drivers/net/mlx4/en_ethtool.c @@ -45,7 +45,20 @@ mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; - sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id); + switch (mdev->dev->rev_id) { + case 0xa0: + if (dev->dev_id >= MLX4_EN_CX3_LOW_ID && dev->dev_id <= MLX4_EN_CX3_HIGH_ID) + sprintf(drvinfo->driver, DRV_NAME " (%s_CX-3)", mdev->dev->board_id); + else + sprintf(drvinfo->driver, DRV_NAME " (%s_CX)", mdev->dev->board_id); + break; + case 0xb0: + sprintf(drvinfo->driver, DRV_NAME " (%s_CX-2)", mdev->dev->board_id); + break; + default: + sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id); + break; + } strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32); sprintf(drvinfo->fw_version, "%d.%d.%d", (u16) (mdev->dev->caps.fw_ver >> 32), diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index 42d4fb477870..5bebb8800ab2 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -1139,6 +1139,8 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) INIT_LIST_HEAD(&priv->pgdir_list); mutex_init(&priv->pgdir_mutex); + pci_read_config_byte(pdev, PCI_REVISION_ID, &dev->rev_id); + /* * Now reset the HCA before we touch the PCI capabilities or * attempt a firmware command, since a boot ROM may have left diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h index 07aea8d0beeb..ad4df66750bc 100644 --- a/drivers/net/mlx4/mlx4_en.h +++ b/drivers/net/mlx4/mlx4_en.h @@ -216,6 +216,9 @@ struct mlx4_en_tx_desc { #define MLX4_EN_USE_SRQ 0x01000000 +#define MLX4_EN_CX3_LOW_ID 0x1000 +#define MLX4_EN_CX3_HIGH_ID 0x1005 + struct mlx4_en_rx_alloc { struct page *page; u16 offset; diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 2460356d2c72..fe2a3a3f046c 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -422,7 +422,7 @@ struct mlx4_dev { unsigned long flags; struct mlx4_caps caps; struct radix_tree_root qp_table_tree; - u32 rev_id; + u8 rev_id; char board_id[MLX4_BOARD_ID_LEN]; }; -- cgit v1.2.3 From 0345584e0b8be3735a950d17c7e463db20c6ce27 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:38:17 +0000 Subject: mlx4: generalization of multicast steering. The same packet steering mechanism would be used both for IB and Ethernet, Both multicasts and unicasts. This commit prepares the general infrastructure for this. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/infiniband/hw/mlx4/main.c | 10 ++-- drivers/net/mlx4/en_main.c | 2 +- drivers/net/mlx4/fw.c | 2 + drivers/net/mlx4/fw.h | 2 + drivers/net/mlx4/main.c | 2 + drivers/net/mlx4/mcg.c | 113 ++++++++++++++++++++++++++------------ include/linux/mlx4/device.h | 14 ++++- 7 files changed, 102 insertions(+), 43 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 66e3eecfd0db..fbe1973f77b0 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -625,7 +625,7 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, !!(mqp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK), - MLX4_PROTOCOL_IB); + MLX4_PROT_IB_IPV6); if (err) return err; @@ -636,7 +636,7 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) return 0; err_add: - mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, MLX4_PROTOCOL_IB); + mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw, MLX4_PROT_IB_IPV6); return err; } @@ -666,7 +666,7 @@ static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) struct mlx4_ib_gid_entry *ge; err = mlx4_multicast_detach(mdev->dev, - &mqp->mqp, gid->raw, MLX4_PROTOCOL_IB); + &mqp->mqp, gid->raw, MLX4_PROT_IB_IPV6); if (err) return err; @@ -953,7 +953,7 @@ static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event mlx4_foreach_ib_transport_port(port, ibdev->dev) { oldnd = iboe->netdevs[port - 1]; iboe->netdevs[port - 1] = - mlx4_get_protocol_dev(ibdev->dev, MLX4_PROTOCOL_EN, port); + mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port); if (oldnd != iboe->netdevs[port - 1]) { if (iboe->netdevs[port - 1]) netdev_added(ibdev, port); @@ -1206,7 +1206,7 @@ static struct mlx4_interface mlx4_ib_interface = { .add = mlx4_ib_add, .remove = mlx4_ib_remove, .event = mlx4_ib_event, - .protocol = MLX4_PROTOCOL_IB + .protocol = MLX4_PROT_IB_IPV6 }; static int __init mlx4_ib_init(void) diff --git a/drivers/net/mlx4/en_main.c b/drivers/net/mlx4/en_main.c index 29aaa4303991..9317b61a75b8 100644 --- a/drivers/net/mlx4/en_main.c +++ b/drivers/net/mlx4/en_main.c @@ -296,7 +296,7 @@ static struct mlx4_interface mlx4_en_interface = { .remove = mlx4_en_remove, .event = mlx4_en_event, .get_dev = mlx4_en_get_netdev, - .protocol = MLX4_PROTOCOL_EN, + .protocol = MLX4_PROT_ETH, }; static int __init mlx4_en_init(void) diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c index fd1c51b6197a..7813913b6d0f 100644 --- a/drivers/net/mlx4/fw.c +++ b/drivers/net/mlx4/fw.c @@ -274,6 +274,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev_cap->stat_rate_support = stat_rate; MLX4_GET(field, outbox, QUERY_DEV_CAP_UDP_RSS_OFFSET); dev_cap->udp_rss = field & 0x1; + dev_cap->vep_uc_steering = field & 0x2; + dev_cap->vep_mc_steering = field & 0x4; MLX4_GET(field, outbox, QUERY_DEV_CAP_ETH_UC_LOOPBACK_OFFSET); dev_cap->loopback_support = field & 0x1; dev_cap->wol = field & 0x40; diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h index f7b9cc2d1b2a..88003ebc6185 100644 --- a/drivers/net/mlx4/fw.h +++ b/drivers/net/mlx4/fw.h @@ -80,6 +80,8 @@ struct mlx4_dev_cap { u16 stat_rate_support; int udp_rss; int loopback_support; + int vep_uc_steering; + int vep_mc_steering; int wol; u32 flags; int reserved_uars; diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index 5bebb8800ab2..da0da281d830 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -227,6 +227,8 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev->caps.stat_rate_support = dev_cap->stat_rate_support; dev->caps.udp_rss = dev_cap->udp_rss; dev->caps.loopback_support = dev_cap->loopback_support; + dev->caps.vep_uc_steering = dev_cap->vep_uc_steering; + dev->caps.vep_mc_steering = dev_cap->vep_mc_steering; dev->caps.wol = dev_cap->wol; dev->caps.max_gso_sz = dev_cap->max_gso_sz; diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c index 79cf42db2ea9..b103ad23bd84 100644 --- a/drivers/net/mlx4/mcg.c +++ b/drivers/net/mlx4/mcg.c @@ -32,6 +32,7 @@ */ #include <linux/string.h> +#include <linux/etherdevice.h> #include <linux/mlx4/cmd.h> @@ -50,28 +51,28 @@ struct mlx4_mgm { static const u8 zero_gid[16]; /* automatically initialized to 0 */ -static int mlx4_READ_MCG(struct mlx4_dev *dev, int index, - struct mlx4_cmd_mailbox *mailbox) +static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index, + struct mlx4_cmd_mailbox *mailbox) { return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG, MLX4_CMD_TIME_CLASS_A); } -static int mlx4_WRITE_MCG(struct mlx4_dev *dev, int index, - struct mlx4_cmd_mailbox *mailbox) +static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index, + struct mlx4_cmd_mailbox *mailbox) { return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A); } -static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, - u16 *hash) +static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, + u16 *hash, u8 op_mod) { u64 imm; int err; - err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, 0, MLX4_CMD_MGID_HASH, - MLX4_CMD_TIME_CLASS_A); + err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod, + MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A); if (!err) *hash = imm; @@ -94,15 +95,17 @@ static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox * If no AMGM exists for given gid, *index = -1, *prev = index of last * entry in hash chain and *mgm holds end of hash chain. */ -static int find_mgm(struct mlx4_dev *dev, - u8 *gid, enum mlx4_protocol protocol, - struct mlx4_cmd_mailbox *mgm_mailbox, - u16 *hash, int *prev, int *index) +static int find_entry(struct mlx4_dev *dev, u8 port, + u8 *gid, enum mlx4_protocol prot, + enum mlx4_steer_type steer, + struct mlx4_cmd_mailbox *mgm_mailbox, + u16 *hash, int *prev, int *index) { struct mlx4_cmd_mailbox *mailbox; struct mlx4_mgm *mgm = mgm_mailbox->buf; u8 *mgid; int err; + u8 op_mod = (prot == MLX4_PROT_ETH) ? !!(dev->caps.vep_mc_steering) : 0; mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) @@ -111,7 +114,7 @@ static int find_mgm(struct mlx4_dev *dev, memcpy(mgid, gid, 16); - err = mlx4_MGID_HASH(dev, mailbox, hash); + err = mlx4_GID_HASH(dev, mailbox, hash, op_mod); mlx4_free_cmd_mailbox(dev, mailbox); if (err) return err; @@ -123,11 +126,11 @@ static int find_mgm(struct mlx4_dev *dev, *prev = -1; do { - err = mlx4_READ_MCG(dev, *index, mgm_mailbox); + err = mlx4_READ_ENTRY(dev, *index, mgm_mailbox); if (err) return err; - if (!memcmp(mgm->gid, zero_gid, 16)) { + if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) { if (*index != *hash) { mlx4_err(dev, "Found zero MGID in AMGM.\n"); err = -EINVAL; @@ -136,7 +139,7 @@ static int find_mgm(struct mlx4_dev *dev, } if (!memcmp(mgm->gid, gid, 16) && - be32_to_cpu(mgm->members_count) >> 30 == protocol) + be32_to_cpu(mgm->members_count) >> 30 == prot) return err; *prev = *index; @@ -147,8 +150,9 @@ static int find_mgm(struct mlx4_dev *dev, return err; } -int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], - int block_mcast_loopback, enum mlx4_protocol protocol) +int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], + int block_mcast_loopback, enum mlx4_protocol prot, + enum mlx4_steer_type steer) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_cmd_mailbox *mailbox; @@ -159,6 +163,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], int link = 0; int i; int err; + u8 port = gid[5]; mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) @@ -166,13 +171,13 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], mgm = mailbox->buf; mutex_lock(&priv->mcg_table.mutex); - - err = find_mgm(dev, gid, protocol, mailbox, &hash, &prev, &index); + err = find_entry(dev, port, gid, prot, steer, + mailbox, &hash, &prev, &index); if (err) goto out; if (index != -1) { - if (!memcmp(mgm->gid, zero_gid, 16)) + if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) memcpy(mgm->gid, gid, 16); } else { link = 1; @@ -209,22 +214,22 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], else mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK); - mgm->members_count = cpu_to_be32(members_count | (u32) protocol << 30); + mgm->members_count = cpu_to_be32(members_count | (u32) prot << 30); - err = mlx4_WRITE_MCG(dev, index, mailbox); + err = mlx4_WRITE_ENTRY(dev, index, mailbox); if (err) goto out; if (!link) goto out; - err = mlx4_READ_MCG(dev, prev, mailbox); + err = mlx4_READ_ENTRY(dev, prev, mailbox); if (err) goto out; mgm->next_gid_index = cpu_to_be32(index << 6); - err = mlx4_WRITE_MCG(dev, prev, mailbox); + err = mlx4_WRITE_ENTRY(dev, prev, mailbox); if (err) goto out; @@ -242,10 +247,9 @@ out: mlx4_free_cmd_mailbox(dev, mailbox); return err; } -EXPORT_SYMBOL_GPL(mlx4_multicast_attach); -int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], - enum mlx4_protocol protocol) +int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], + enum mlx4_protocol prot, enum mlx4_steer_type steer) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_cmd_mailbox *mailbox; @@ -255,6 +259,7 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], int prev, index; int i, loc; int err; + u8 port = gid[5]; mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) @@ -263,7 +268,8 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], mutex_lock(&priv->mcg_table.mutex); - err = find_mgm(dev, gid, protocol, mailbox, &hash, &prev, &index); + err = find_entry(dev, port, gid, prot, steer, + mailbox, &hash, &prev, &index); if (err) goto out; @@ -285,12 +291,12 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], } - mgm->members_count = cpu_to_be32(--members_count | (u32) protocol << 30); + mgm->members_count = cpu_to_be32(--members_count | (u32) prot << 30); mgm->qp[loc] = mgm->qp[i - 1]; mgm->qp[i - 1] = 0; if (i != 1) { - err = mlx4_WRITE_MCG(dev, index, mailbox); + err = mlx4_WRITE_ENTRY(dev, index, mailbox); goto out; } @@ -298,13 +304,13 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], /* Remove entry from MGM */ int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6; if (amgm_index) { - err = mlx4_READ_MCG(dev, amgm_index, mailbox); + err = mlx4_READ_ENTRY(dev, amgm_index, mailbox); if (err) goto out; } else memset(mgm->gid, 0, 16); - err = mlx4_WRITE_MCG(dev, index, mailbox); + err = mlx4_WRITE_ENTRY(dev, index, mailbox); if (err) goto out; @@ -319,13 +325,13 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], } else { /* Remove entry from AMGM */ int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6; - err = mlx4_READ_MCG(dev, prev, mailbox); + err = mlx4_READ_ENTRY(dev, prev, mailbox); if (err) goto out; mgm->next_gid_index = cpu_to_be32(cur_next_index << 6); - err = mlx4_WRITE_MCG(dev, prev, mailbox); + err = mlx4_WRITE_ENTRY(dev, prev, mailbox); if (err) goto out; @@ -343,6 +349,43 @@ out: mlx4_free_cmd_mailbox(dev, mailbox); return err; } + + +int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], + int block_mcast_loopback, enum mlx4_protocol prot) +{ + enum mlx4_steer_type steer; + + steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER; + + if (prot == MLX4_PROT_ETH && !dev->caps.vep_mc_steering) + return 0; + + if (prot == MLX4_PROT_ETH) + gid[7] |= (steer << 1); + + return mlx4_qp_attach_common(dev, qp, gid, + block_mcast_loopback, prot, + steer); +} +EXPORT_SYMBOL_GPL(mlx4_multicast_attach); + +int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], + enum mlx4_protocol prot) +{ + enum mlx4_steer_type steer; + + steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER; + + if (prot == MLX4_PROT_ETH && !dev->caps.vep_mc_steering) + return 0; + + if (prot == MLX4_PROT_ETH) { + gid[7] |= (steer << 1); + } + + return mlx4_qp_detach_common(dev, qp, gid, prot, steer); +} EXPORT_SYMBOL_GPL(mlx4_multicast_detach); int mlx4_init_mcg_table(struct mlx4_dev *dev) diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index fe2a3a3f046c..ebda939b9fc3 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -150,8 +150,10 @@ enum { }; enum mlx4_protocol { - MLX4_PROTOCOL_IB, - MLX4_PROTOCOL_EN, + MLX4_PROT_IB_IPV6 = 0, + MLX4_PROT_ETH, + MLX4_PROT_IB_IPV4, + MLX4_PROT_FCOE }; enum { @@ -178,6 +180,12 @@ enum mlx4_special_vlan_idx { MLX4_VLAN_REGULAR }; +enum mlx4_steer_type { + MLX4_MC_STEER = 0, + MLX4_UC_STEER, + MLX4_NUM_STEERS +}; + enum { MLX4_NUM_FEXCH = 64 * 1024, }; @@ -251,6 +259,8 @@ struct mlx4_caps { u16 stat_rate_support; int udp_rss; int loopback_support; + int vep_uc_steering; + int vep_mc_steering; int wol; u8 port_width_cap[MLX4_MAX_PORTS + 1]; int max_gso_sz; -- cgit v1.2.3 From b12d93d63c3217f0ec923ff938b12a744e242ffa Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:38:24 +0000 Subject: mlx4: Add support for promiscuous mode in the new steering model. For Ethernet mode only, When we want to register QP as promiscuous, it must be added to all the existing steering entries and also to the default one. The promiscuous QP might also be on of "real" QPs, which means we need to monitor every entry to avoid duplicates and ensure we close an entry when all it has is promiscuous QPs. Same mechanism both for unicast and multicast. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/main.c | 63 +++++- drivers/net/mlx4/mcg.c | 535 +++++++++++++++++++++++++++++++++++++++++++++++- drivers/net/mlx4/mlx4.h | 33 +++ 3 files changed, 620 insertions(+), 11 deletions(-) diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index da0da281d830..c8e276138f81 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -1063,6 +1063,59 @@ static void mlx4_cleanup_port_info(struct mlx4_port_info *info) device_remove_file(&info->dev->pdev->dev, &info->port_attr); } +static int mlx4_init_steering(struct mlx4_dev *dev) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + int num_entries = dev->caps.num_ports; + int i, j; + + priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL); + if (!priv->steer) + return -ENOMEM; + + for (i = 0; i < num_entries; i++) { + for (j = 0; j < MLX4_NUM_STEERS; j++) { + INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]); + INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]); + } + INIT_LIST_HEAD(&priv->steer[i].high_prios); + } + return 0; +} + +static void mlx4_clear_steering(struct mlx4_dev *dev) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + struct mlx4_steer_index *entry, *tmp_entry; + struct mlx4_promisc_qp *pqp, *tmp_pqp; + int num_entries = dev->caps.num_ports; + int i, j; + + for (i = 0; i < num_entries; i++) { + for (j = 0; j < MLX4_NUM_STEERS; j++) { + list_for_each_entry_safe(pqp, tmp_pqp, + &priv->steer[i].promisc_qps[j], + list) { + list_del(&pqp->list); + kfree(pqp); + } + list_for_each_entry_safe(entry, tmp_entry, + &priv->steer[i].steer_entries[j], + list) { + list_del(&entry->list); + list_for_each_entry_safe(pqp, tmp_pqp, + &entry->duplicates, + list) { + list_del(&pqp->list); + kfree(pqp); + } + kfree(entry); + } + } + } + kfree(priv->steer); +} + static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) { struct mlx4_priv *priv; @@ -1172,6 +1225,10 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) mlx4_enable_msi_x(dev); + err = mlx4_init_steering(dev); + if (err) + goto err_free_eq; + err = mlx4_setup_hca(dev); if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) { dev->flags &= ~MLX4_FLAG_MSI_X; @@ -1180,7 +1237,7 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) } if (err) - goto err_free_eq; + goto err_steer; for (port = 1; port <= dev->caps.num_ports; port++) { err = mlx4_init_port_info(dev, port); @@ -1213,6 +1270,9 @@ err_port: mlx4_cleanup_pd_table(dev); mlx4_cleanup_uar_table(dev); +err_steer: + mlx4_clear_steering(dev); + err_free_eq: mlx4_free_eq_table(dev); @@ -1272,6 +1332,7 @@ static void mlx4_remove_one(struct pci_dev *pdev) iounmap(priv->kar); mlx4_uar_free(dev, &priv->driver_uar); mlx4_cleanup_uar_table(dev); + mlx4_clear_steering(dev); mlx4_free_eq_table(dev); mlx4_close_hca(dev); mlx4_cmd_cleanup(dev); diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c index b103ad23bd84..e71372aa9cc4 100644 --- a/drivers/net/mlx4/mcg.c +++ b/drivers/net/mlx4/mcg.c @@ -41,14 +41,6 @@ #define MGM_QPN_MASK 0x00FFFFFF #define MGM_BLCK_LB_BIT 30 -struct mlx4_mgm { - __be32 next_gid_index; - __be32 members_count; - u32 reserved[2]; - u8 gid[16]; - __be32 qp[MLX4_QP_PER_MGM]; -}; - static const u8 zero_gid[16]; /* automatically initialized to 0 */ static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index, @@ -65,6 +57,16 @@ static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index, MLX4_CMD_TIME_CLASS_A); } +static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 vep_num, u8 port, u8 steer, + struct mlx4_cmd_mailbox *mailbox) +{ + u32 in_mod; + + in_mod = (u32) vep_num << 24 | (u32) port << 16 | steer << 1; + return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1, + MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A); +} + static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, u16 *hash, u8 op_mod) { @@ -80,6 +82,457 @@ static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox, return err; } +static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 pf_num, + enum mlx4_steer_type steer, + u32 qpn) +{ + struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[pf_num]; + struct mlx4_promisc_qp *pqp; + + list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) { + if (pqp->qpn == qpn) + return pqp; + } + /* not found */ + return NULL; +} + +/* + * Add new entry to steering data structure. + * All promisc QPs should be added as well + */ +static int new_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port, + enum mlx4_steer_type steer, + unsigned int index, u32 qpn) +{ + struct mlx4_steer *s_steer; + struct mlx4_cmd_mailbox *mailbox; + struct mlx4_mgm *mgm; + u32 members_count; + struct mlx4_steer_index *new_entry; + struct mlx4_promisc_qp *pqp; + struct mlx4_promisc_qp *dqp; + u32 prot; + int err; + u8 pf_num; + + pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); + s_steer = &mlx4_priv(dev)->steer[pf_num]; + new_entry = kzalloc(sizeof *new_entry, GFP_KERNEL); + if (!new_entry) + return -ENOMEM; + + INIT_LIST_HEAD(&new_entry->duplicates); + new_entry->index = index; + list_add_tail(&new_entry->list, &s_steer->steer_entries[steer]); + + /* If the given qpn is also a promisc qp, + * it should be inserted to duplicates list + */ + pqp = get_promisc_qp(dev, pf_num, steer, qpn); + if (pqp) { + dqp = kmalloc(sizeof *dqp, GFP_KERNEL); + if (!dqp) { + err = -ENOMEM; + goto out_alloc; + } + dqp->qpn = qpn; + list_add_tail(&dqp->list, &new_entry->duplicates); + } + + /* if no promisc qps for this vep, we are done */ + if (list_empty(&s_steer->promisc_qps[steer])) + return 0; + + /* now need to add all the promisc qps to the new + * steering entry, as they should also receive the packets + * destined to this address */ + mailbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(mailbox)) { + err = -ENOMEM; + goto out_alloc; + } + mgm = mailbox->buf; + + err = mlx4_READ_ENTRY(dev, index, mailbox); + if (err) + goto out_mailbox; + + members_count = be32_to_cpu(mgm->members_count) & 0xffffff; + prot = be32_to_cpu(mgm->members_count) >> 30; + list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) { + /* don't add already existing qpn */ + if (pqp->qpn == qpn) + continue; + if (members_count == MLX4_QP_PER_MGM) { + /* out of space */ + err = -ENOMEM; + goto out_mailbox; + } + + /* add the qpn */ + mgm->qp[members_count++] = cpu_to_be32(pqp->qpn & MGM_QPN_MASK); + } + /* update the qps count and update the entry with all the promisc qps*/ + mgm->members_count = cpu_to_be32(members_count | (prot << 30)); + err = mlx4_WRITE_ENTRY(dev, index, mailbox); + +out_mailbox: + mlx4_free_cmd_mailbox(dev, mailbox); + if (!err) + return 0; +out_alloc: + if (dqp) { + list_del(&dqp->list); + kfree(&dqp); + } + list_del(&new_entry->list); + kfree(new_entry); + return err; +} + +/* update the data structures with existing steering entry */ +static int existing_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port, + enum mlx4_steer_type steer, + unsigned int index, u32 qpn) +{ + struct mlx4_steer *s_steer; + struct mlx4_steer_index *tmp_entry, *entry = NULL; + struct mlx4_promisc_qp *pqp; + struct mlx4_promisc_qp *dqp; + u8 pf_num; + + pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); + s_steer = &mlx4_priv(dev)->steer[pf_num]; + + pqp = get_promisc_qp(dev, pf_num, steer, qpn); + if (!pqp) + return 0; /* nothing to do */ + + list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) { + if (tmp_entry->index == index) { + entry = tmp_entry; + break; + } + } + if (unlikely(!entry)) { + mlx4_warn(dev, "Steering entry at index %x is not registered\n", index); + return -EINVAL; + } + + /* the given qpn is listed as a promisc qpn + * we need to add it as a duplicate to this entry + * for future refernce */ + list_for_each_entry(dqp, &entry->duplicates, list) { + if (qpn == dqp->qpn) + return 0; /* qp is already duplicated */ + } + + /* add the qp as a duplicate on this index */ + dqp = kmalloc(sizeof *dqp, GFP_KERNEL); + if (!dqp) + return -ENOMEM; + dqp->qpn = qpn; + list_add_tail(&dqp->list, &entry->duplicates); + + return 0; +} + +/* Check whether a qpn is a duplicate on steering entry + * If so, it should not be removed from mgm */ +static bool check_duplicate_entry(struct mlx4_dev *dev, u8 vep_num, u8 port, + enum mlx4_steer_type steer, + unsigned int index, u32 qpn) +{ + struct mlx4_steer *s_steer; + struct mlx4_steer_index *tmp_entry, *entry = NULL; + struct mlx4_promisc_qp *dqp, *tmp_dqp; + u8 pf_num; + + pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); + s_steer = &mlx4_priv(dev)->steer[pf_num]; + + /* if qp is not promisc, it cannot be duplicated */ + if (!get_promisc_qp(dev, pf_num, steer, qpn)) + return false; + + /* The qp is promisc qp so it is a duplicate on this index + * Find the index entry, and remove the duplicate */ + list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) { + if (tmp_entry->index == index) { + entry = tmp_entry; + break; + } + } + if (unlikely(!entry)) { + mlx4_warn(dev, "Steering entry for index %x is not registered\n", index); + return false; + } + list_for_each_entry_safe(dqp, tmp_dqp, &entry->duplicates, list) { + if (dqp->qpn == qpn) { + list_del(&dqp->list); + kfree(dqp); + } + } + return true; +} + +/* I a steering entry contains only promisc QPs, it can be removed. */ +static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port, + enum mlx4_steer_type steer, + unsigned int index, u32 tqpn) +{ + struct mlx4_steer *s_steer; + struct mlx4_cmd_mailbox *mailbox; + struct mlx4_mgm *mgm; + struct mlx4_steer_index *entry = NULL, *tmp_entry; + u32 qpn; + u32 members_count; + bool ret = false; + int i; + u8 pf_num; + + pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); + s_steer = &mlx4_priv(dev)->steer[pf_num]; + + mailbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(mailbox)) + return false; + mgm = mailbox->buf; + + if (mlx4_READ_ENTRY(dev, index, mailbox)) + goto out; + members_count = be32_to_cpu(mgm->members_count) & 0xffffff; + for (i = 0; i < members_count; i++) { + qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK; + if (!get_promisc_qp(dev, pf_num, steer, qpn) && qpn != tqpn) { + /* the qp is not promisc, the entry can't be removed */ + goto out; + } + } + /* All the qps currently registered for this entry are promiscuous, + * Checking for duplicates */ + ret = true; + list_for_each_entry_safe(entry, tmp_entry, &s_steer->steer_entries[steer], list) { + if (entry->index == index) { + if (list_empty(&entry->duplicates)) { + list_del(&entry->list); + kfree(entry); + } else { + /* This entry contains duplicates so it shouldn't be removed */ + ret = false; + goto out; + } + } + } + +out: + mlx4_free_cmd_mailbox(dev, mailbox); + return ret; +} + +static int add_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port, + enum mlx4_steer_type steer, u32 qpn) +{ + struct mlx4_steer *s_steer; + struct mlx4_cmd_mailbox *mailbox; + struct mlx4_mgm *mgm; + struct mlx4_steer_index *entry; + struct mlx4_promisc_qp *pqp; + struct mlx4_promisc_qp *dqp; + u32 members_count; + u32 prot; + int i; + bool found; + int last_index; + int err; + u8 pf_num; + struct mlx4_priv *priv = mlx4_priv(dev); + pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); + s_steer = &mlx4_priv(dev)->steer[pf_num]; + + mutex_lock(&priv->mcg_table.mutex); + + if (get_promisc_qp(dev, pf_num, steer, qpn)) { + err = 0; /* Noting to do, already exists */ + goto out_mutex; + } + + pqp = kmalloc(sizeof *pqp, GFP_KERNEL); + if (!pqp) { + err = -ENOMEM; + goto out_mutex; + } + pqp->qpn = qpn; + + mailbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(mailbox)) { + err = -ENOMEM; + goto out_alloc; + } + mgm = mailbox->buf; + + /* the promisc qp needs to be added for each one of the steering + * entries, if it already exists, needs to be added as a duplicate + * for this entry */ + list_for_each_entry(entry, &s_steer->steer_entries[steer], list) { + err = mlx4_READ_ENTRY(dev, entry->index, mailbox); + if (err) + goto out_mailbox; + + members_count = be32_to_cpu(mgm->members_count) & 0xffffff; + prot = be32_to_cpu(mgm->members_count) >> 30; + found = false; + for (i = 0; i < members_count; i++) { + if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) { + /* Entry already exists, add to duplicates */ + dqp = kmalloc(sizeof *dqp, GFP_KERNEL); + if (!dqp) + goto out_mailbox; + dqp->qpn = qpn; + list_add_tail(&dqp->list, &entry->duplicates); + found = true; + } + } + if (!found) { + /* Need to add the qpn to mgm */ + if (members_count == MLX4_QP_PER_MGM) { + /* entry is full */ + err = -ENOMEM; + goto out_mailbox; + } + mgm->qp[members_count++] = cpu_to_be32(qpn & MGM_QPN_MASK); + mgm->members_count = cpu_to_be32(members_count | (prot << 30)); + err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox); + if (err) + goto out_mailbox; + } + last_index = entry->index; + } + + /* add the new qpn to list of promisc qps */ + list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]); + /* now need to add all the promisc qps to default entry */ + memset(mgm, 0, sizeof *mgm); + members_count = 0; + list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list) + mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK); + mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30); + + err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox); + if (err) + goto out_list; + + mlx4_free_cmd_mailbox(dev, mailbox); + mutex_unlock(&priv->mcg_table.mutex); + return 0; + +out_list: + list_del(&pqp->list); +out_mailbox: + mlx4_free_cmd_mailbox(dev, mailbox); +out_alloc: + kfree(pqp); +out_mutex: + mutex_unlock(&priv->mcg_table.mutex); + return err; +} + +static int remove_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port, + enum mlx4_steer_type steer, u32 qpn) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + struct mlx4_steer *s_steer; + struct mlx4_cmd_mailbox *mailbox; + struct mlx4_mgm *mgm; + struct mlx4_steer_index *entry; + struct mlx4_promisc_qp *pqp; + struct mlx4_promisc_qp *dqp; + u32 members_count; + bool found; + bool back_to_list = false; + int loc, i; + int err; + u8 pf_num; + + pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1); + s_steer = &mlx4_priv(dev)->steer[pf_num]; + mutex_lock(&priv->mcg_table.mutex); + + pqp = get_promisc_qp(dev, pf_num, steer, qpn); + if (unlikely(!pqp)) { + mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn); + /* nothing to do */ + err = 0; + goto out_mutex; + } + + /*remove from list of promisc qps */ + list_del(&pqp->list); + kfree(pqp); + + /* set the default entry not to include the removed one */ + mailbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(mailbox)) { + err = -ENOMEM; + back_to_list = true; + goto out_list; + } + mgm = mailbox->buf; + members_count = 0; + list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list) + mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK); + mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30); + + err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox); + if (err) + goto out_mailbox; + + /* remove the qp from all the steering entries*/ + list_for_each_entry(entry, &s_steer->steer_entries[steer], list) { + found = false; + list_for_each_entry(dqp, &entry->duplicates, list) { + if (dqp->qpn == qpn) { + found = true; + break; + } + } + if (found) { + /* a duplicate, no need to change the mgm, + * only update the duplicates list */ + list_del(&dqp->list); + kfree(dqp); + } else { + err = mlx4_READ_ENTRY(dev, entry->index, mailbox); + if (err) + goto out_mailbox; + members_count = be32_to_cpu(mgm->members_count) & 0xffffff; + for (loc = -1, i = 0; i < members_count; ++i) + if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) + loc = i; + + mgm->members_count = cpu_to_be32(--members_count | + (MLX4_PROT_ETH << 30)); + mgm->qp[loc] = mgm->qp[i - 1]; + mgm->qp[i - 1] = 0; + + err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox); + if (err) + goto out_mailbox; + } + + } + +out_mailbox: + mlx4_free_cmd_mailbox(dev, mailbox); +out_list: + if (back_to_list) + list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]); +out_mutex: + mutex_unlock(&priv->mcg_table.mutex); + return err; +} + /* * Caller must hold MCG table semaphore. gid and mgm parameters must * be properly aligned for command interface. @@ -164,6 +617,7 @@ int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], int i; int err; u8 port = gid[5]; + u8 new_entry = 0; mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) @@ -177,8 +631,10 @@ int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], goto out; if (index != -1) { - if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) + if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) { + new_entry = 1; memcpy(mgm->gid, gid, 16); + } } else { link = 1; @@ -234,6 +690,14 @@ int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], goto out; out: + if (prot == MLX4_PROT_ETH) { + /* manage the steering entry for promisc mode */ + if (new_entry) + new_steering_entry(dev, 0, port, steer, index, qp->qpn); + else + existing_steering_entry(dev, 0, port, steer, + index, qp->qpn); + } if (err && link && index != -1) { if (index < dev->caps.num_mgms) mlx4_warn(dev, "Got AMGM index %d < %d", @@ -260,6 +724,7 @@ int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], int i, loc; int err; u8 port = gid[5]; + bool removed_entry = false; mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) @@ -279,6 +744,11 @@ int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], goto out; } + /* if this pq is also a promisc qp, it shouldn't be removed */ + if (prot == MLX4_PROT_ETH && + check_duplicate_entry(dev, 0, port, steer, index, qp->qpn)) + goto out; + members_count = be32_to_cpu(mgm->members_count) & 0xffffff; for (loc = -1, i = 0; i < members_count; ++i) if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) @@ -295,11 +765,16 @@ int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], mgm->qp[loc] = mgm->qp[i - 1]; mgm->qp[i - 1] = 0; - if (i != 1) { + if (prot == MLX4_PROT_ETH) + removed_entry = can_remove_steering_entry(dev, 0, port, steer, index, qp->qpn); + if (i != 1 && (prot != MLX4_PROT_ETH || !removed_entry)) { err = mlx4_WRITE_ENTRY(dev, index, mailbox); goto out; } + /* We are going to delete the entry, members count should be 0 */ + mgm->members_count = cpu_to_be32((u32) prot << 30); + if (prev == -1) { /* Remove entry from MGM */ int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6; @@ -388,6 +863,46 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], } EXPORT_SYMBOL_GPL(mlx4_multicast_detach); + +int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port) +{ + if (!dev->caps.vep_mc_steering) + return 0; + + + return add_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn); +} +EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_add); + +int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port) +{ + if (!dev->caps.vep_mc_steering) + return 0; + + + return remove_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn); +} +EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_remove); + +int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port) +{ + if (!dev->caps.vep_mc_steering) + return 0; + + + return add_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn); +} +EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_add); + +int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port) +{ + if (!dev->caps.vep_mc_steering) + return 0; + + return remove_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn); +} +EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_remove); + int mlx4_init_mcg_table(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index 67ee8dacae79..1513a91b4bd4 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -162,6 +162,27 @@ struct mlx4_fw { u8 catas_bar; }; +#define MGM_QPN_MASK 0x00FFFFFF +#define MGM_BLCK_LB_BIT 30 + +struct mlx4_promisc_qp { + struct list_head list; + u32 qpn; +}; + +struct mlx4_steer_index { + struct list_head list; + unsigned int index; + struct list_head duplicates; +}; + +struct mlx4_mgm { + __be32 next_gid_index; + __be32 members_count; + u32 reserved[2]; + u8 gid[16]; + __be32 qp[MLX4_QP_PER_MGM]; +}; struct mlx4_cmd { struct pci_pool *pool; void __iomem *hcr; @@ -287,6 +308,12 @@ struct mlx4_msix_ctl { spinlock_t pool_lock; }; +struct mlx4_steer { + struct list_head promisc_qps[MLX4_NUM_STEERS]; + struct list_head steer_entries[MLX4_NUM_STEERS]; + struct list_head high_prios; +}; + struct mlx4_priv { struct mlx4_dev dev; @@ -319,6 +346,7 @@ struct mlx4_priv { struct mlx4_sense sense; struct mutex port_mutex; struct mlx4_msix_ctl msix_ctl; + struct mlx4_steer *steer; }; static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev) @@ -409,4 +437,9 @@ void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table); int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port); int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps); +int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], + enum mlx4_protocol prot, enum mlx4_steer_type steer); +int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], + int block_mcast_loopback, enum mlx4_protocol prot, + enum mlx4_steer_type steer); #endif /* MLX4_H */ -- cgit v1.2.3 From 1679200f91da6a054b06954c9bd3eeed29b6731f Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:38:31 +0000 Subject: mlx4_en: Enabling new steering The mlx4_en module now uses the new steering mechanism. The RX packets are now steered through the MCG table instead of Mac table for unicast, and default entry for multicast. The feature is enabled through INIT_HCA Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/en_netdev.c | 133 +++++++++++++++++++++++++++------- drivers/net/mlx4/en_port.c | 11 ++- drivers/net/mlx4/en_port.h | 19 +++-- drivers/net/mlx4/en_rx.c | 11 +-- drivers/net/mlx4/fw.c | 3 + drivers/net/mlx4/mlx4.h | 6 ++ drivers/net/mlx4/mlx4_en.h | 1 + drivers/net/mlx4/port.c | 165 +++++++++++++++++++++++++++++++++++++++---- include/linux/mlx4/device.h | 12 +++- 9 files changed, 300 insertions(+), 61 deletions(-) diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c index f6ed315b4b89..08e680100db8 100644 --- a/drivers/net/mlx4/en_netdev.c +++ b/drivers/net/mlx4/en_netdev.c @@ -156,9 +156,8 @@ static void mlx4_en_do_set_mac(struct work_struct *work) mutex_lock(&mdev->state_lock); if (priv->port_up) { /* Remove old MAC and insert the new one */ - mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index); - err = mlx4_register_mac(mdev->dev, priv->port, - priv->mac, &priv->mac_index); + err = mlx4_replace_mac(mdev->dev, priv->port, + priv->base_qpn, priv->mac, 0); if (err) en_err(priv, "Failed changing HW MAC address\n"); } else @@ -214,6 +213,7 @@ static void mlx4_en_do_set_multicast(struct work_struct *work) struct mlx4_en_dev *mdev = priv->mdev; struct net_device *dev = priv->dev; u64 mcast_addr = 0; + u8 mc_list[16] = {0}; int err; mutex_lock(&mdev->state_lock); @@ -239,8 +239,12 @@ static void mlx4_en_do_set_multicast(struct work_struct *work) priv->flags |= MLX4_EN_FLAG_PROMISC; /* Enable promiscouos mode */ - err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, - priv->base_qpn, 1); + if (!mdev->dev->caps.vep_uc_steering) + err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, + priv->base_qpn, 1); + else + err = mlx4_unicast_promisc_add(mdev->dev, priv->base_qpn, + priv->port); if (err) en_err(priv, "Failed enabling " "promiscous mode\n"); @@ -252,10 +256,21 @@ static void mlx4_en_do_set_multicast(struct work_struct *work) en_err(priv, "Failed disabling " "multicast filter\n"); - /* Disable port VLAN filter */ - err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, NULL); - if (err) - en_err(priv, "Failed disabling VLAN filter\n"); + /* Add the default qp number as multicast promisc */ + if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { + err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, + priv->port); + if (err) + en_err(priv, "Failed entering multicast promisc mode\n"); + priv->flags |= MLX4_EN_FLAG_MC_PROMISC; + } + + if (priv->vlgrp) { + /* Disable port VLAN filter */ + err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, NULL); + if (err) + en_err(priv, "Failed disabling VLAN filter\n"); + } } goto out; } @@ -270,11 +285,24 @@ static void mlx4_en_do_set_multicast(struct work_struct *work) priv->flags &= ~MLX4_EN_FLAG_PROMISC; /* Disable promiscouos mode */ - err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, - priv->base_qpn, 0); + if (!mdev->dev->caps.vep_uc_steering) + err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, + priv->base_qpn, 0); + else + err = mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn, + priv->port); if (err) en_err(priv, "Failed disabling promiscous mode\n"); + /* Disable Multicast promisc */ + if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { + err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, + priv->port); + if (err) + en_err(priv, "Failed disabling multicast promiscous mode\n"); + priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; + } + /* Enable port VLAN filter */ err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp); if (err) @@ -287,14 +315,38 @@ static void mlx4_en_do_set_multicast(struct work_struct *work) 0, MLX4_MCAST_DISABLE); if (err) en_err(priv, "Failed disabling multicast filter\n"); + + /* Add the default qp number as multicast promisc */ + if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { + err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, + priv->port); + if (err) + en_err(priv, "Failed entering multicast promisc mode\n"); + priv->flags |= MLX4_EN_FLAG_MC_PROMISC; + } } else { int i; + /* Disable Multicast promisc */ + if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { + err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, + priv->port); + if (err) + en_err(priv, "Failed disabling multicast promiscous mode\n"); + priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; + } err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 0, MLX4_MCAST_DISABLE); if (err) en_err(priv, "Failed disabling multicast filter\n"); + /* Detach our qp from all the multicast addresses */ + for (i = 0; i < priv->mc_addrs_cnt; i++) { + memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); + mc_list[5] = priv->port; + mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, + mc_list, MLX4_PROT_ETH); + } /* Flush mcast filter and init it with broadcast address */ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST, 1, MLX4_MCAST_CONFIG); @@ -307,6 +359,10 @@ static void mlx4_en_do_set_multicast(struct work_struct *work) for (i = 0; i < priv->mc_addrs_cnt; i++) { mcast_addr = mlx4_en_mac_to_u64(priv->mc_addrs + i * ETH_ALEN); + memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); + mc_list[5] = priv->port; + mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, + mc_list, 0, MLX4_PROT_ETH); mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, mcast_addr, 0, MLX4_MCAST_CONFIG); } @@ -314,8 +370,6 @@ static void mlx4_en_do_set_multicast(struct work_struct *work) 0, MLX4_MCAST_ENABLE); if (err) en_err(priv, "Failed enabling multicast filter\n"); - - mlx4_en_clear_list(dev); } out: mutex_unlock(&mdev->state_lock); @@ -557,6 +611,7 @@ int mlx4_en_start_port(struct net_device *dev) int err = 0; int i; int j; + u8 mc_list[16] = {0}; char name[32]; if (priv->port_up) { @@ -596,10 +651,20 @@ int mlx4_en_start_port(struct net_device *dev) ++rx_index; } + /* Set port mac number */ + en_dbg(DRV, priv, "Setting mac for port %d\n", priv->port); + err = mlx4_register_mac(mdev->dev, priv->port, + priv->mac, &priv->base_qpn, 0); + if (err) { + en_err(priv, "Failed setting port mac\n"); + goto cq_err; + } + mdev->mac_removed[priv->port] = 0; + err = mlx4_en_config_rss_steer(priv); if (err) { en_err(priv, "Failed configuring rss steering\n"); - goto cq_err; + goto mac_err; } if (mdev->dev->caps.comp_pool && !priv->tx_vector) { @@ -661,24 +726,22 @@ int mlx4_en_start_port(struct net_device *dev) en_err(priv, "Failed setting default qp numbers\n"); goto tx_err; } - /* Set port mac number */ - en_dbg(DRV, priv, "Setting mac for port %d\n", priv->port); - err = mlx4_register_mac(mdev->dev, priv->port, - priv->mac, &priv->mac_index); - if (err) { - en_err(priv, "Failed setting port mac\n"); - goto tx_err; - } - mdev->mac_removed[priv->port] = 0; /* Init port */ en_dbg(HW, priv, "Initializing port\n"); err = mlx4_INIT_PORT(mdev->dev, priv->port); if (err) { en_err(priv, "Failed Initializing port\n"); - goto mac_err; + goto tx_err; } + /* Attach rx QP to bradcast address */ + memset(&mc_list[10], 0xff, ETH_ALEN); + mc_list[5] = priv->port; + if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list, + 0, MLX4_PROT_ETH)) + mlx4_warn(mdev, "Failed Attaching Broadcast\n"); + /* Schedule multicast task to populate multicast list */ queue_work(mdev->workqueue, &priv->mcast_task); @@ -686,8 +749,6 @@ int mlx4_en_start_port(struct net_device *dev) netif_tx_start_all_queues(dev); return 0; -mac_err: - mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index); tx_err: while (tx_index--) { mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]); @@ -695,6 +756,8 @@ tx_err: } mlx4_en_release_rss_steer(priv); +mac_err: + mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn); cq_err: while (rx_index--) mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); @@ -710,6 +773,7 @@ void mlx4_en_stop_port(struct net_device *dev) struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; int i; + u8 mc_list[16] = {0}; if (!priv->port_up) { en_dbg(DRV, priv, "stop port called while port already down\n"); @@ -724,8 +788,23 @@ void mlx4_en_stop_port(struct net_device *dev) /* Set port as not active */ priv->port_up = false; + /* Detach All multicasts */ + memset(&mc_list[10], 0xff, ETH_ALEN); + mc_list[5] = priv->port; + mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, + MLX4_PROT_ETH); + for (i = 0; i < priv->mc_addrs_cnt; i++) { + memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); + mc_list[5] = priv->port; + mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, + mc_list, MLX4_PROT_ETH); + } + mlx4_en_clear_list(dev); + /* Flush multicast filter */ + mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); + /* Unregister Mac address for the port */ - mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index); + mlx4_unregister_mac(mdev->dev, priv->port, priv->base_qpn); mdev->mac_removed[priv->port] = 1; /* Free TX Rings */ diff --git a/drivers/net/mlx4/en_port.c b/drivers/net/mlx4/en_port.c index a2b0bc4ada5d..f2a4f5dd313d 100644 --- a/drivers/net/mlx4/en_port.c +++ b/drivers/net/mlx4/en_port.c @@ -119,6 +119,10 @@ int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn, struct mlx4_set_port_rqp_calc_context *context; int err; u32 in_mod; + u32 m_promisc = (dev->caps.vep_mc_steering) ? MCAST_DIRECT : MCAST_DEFAULT; + + if (dev->caps.vep_mc_steering && dev->caps.vep_uc_steering) + return 0; mailbox = mlx4_alloc_cmd_mailbox(dev); if (IS_ERR(mailbox)) @@ -127,8 +131,11 @@ int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn, memset(context, 0, sizeof *context); context->base_qpn = cpu_to_be32(base_qpn); - context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_EN_SHIFT | base_qpn); - context->mcast = cpu_to_be32(1 << SET_PORT_PROMISC_MODE_SHIFT | base_qpn); + context->n_mac = 0x7; + context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_SHIFT | + base_qpn); + context->mcast = cpu_to_be32(m_promisc << SET_PORT_MC_PROMISC_SHIFT | + base_qpn); context->intra_no_vlan = 0; context->no_vlan = MLX4_NO_VLAN_IDX; context->intra_vlan_miss = 0; diff --git a/drivers/net/mlx4/en_port.h b/drivers/net/mlx4/en_port.h index 092e814b1981..e3d73e41c567 100644 --- a/drivers/net/mlx4/en_port.h +++ b/drivers/net/mlx4/en_port.h @@ -36,8 +36,8 @@ #define SET_PORT_GEN_ALL_VALID 0x7 -#define SET_PORT_PROMISC_EN_SHIFT 31 -#define SET_PORT_PROMISC_MODE_SHIFT 30 +#define SET_PORT_PROMISC_SHIFT 31 +#define SET_PORT_MC_PROMISC_SHIFT 30 enum { MLX4_CMD_SET_VLAN_FLTR = 0x47, @@ -45,6 +45,12 @@ enum { MLX4_CMD_DUMP_ETH_STATS = 0x49, }; +enum { + MCAST_DIRECT_ONLY = 0, + MCAST_DIRECT = 1, + MCAST_DEFAULT = 2 +}; + struct mlx4_set_port_general_context { u8 reserved[3]; u8 flags; @@ -60,14 +66,17 @@ struct mlx4_set_port_general_context { struct mlx4_set_port_rqp_calc_context { __be32 base_qpn; - __be32 flags; - u8 reserved[3]; + u8 rererved; + u8 n_mac; + u8 n_vlan; + u8 n_prio; + u8 reserved2[3]; u8 mac_miss; u8 intra_no_vlan; u8 no_vlan; u8 intra_vlan_miss; u8 vlan_miss; - u8 reserved2[3]; + u8 reserved3[3]; u8 no_vlan_prio; __be32 promisc; __be32 mcast; diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c index 570f2508fb30..05998ee297c9 100644 --- a/drivers/net/mlx4/en_rx.c +++ b/drivers/net/mlx4/en_rx.c @@ -845,16 +845,10 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv) } /* Configure RSS indirection qp */ - err = mlx4_qp_reserve_range(mdev->dev, 1, 1, &priv->base_qpn); - if (err) { - en_err(priv, "Failed to reserve range for RSS " - "indirection qp\n"); - goto rss_err; - } err = mlx4_qp_alloc(mdev->dev, priv->base_qpn, &rss_map->indir_qp); if (err) { en_err(priv, "Failed to allocate RSS indirection QP\n"); - goto reserve_err; + goto rss_err; } rss_map->indir_qp.event = mlx4_en_sqp_event; mlx4_en_fill_qp_context(priv, 0, 0, 0, 1, priv->base_qpn, @@ -881,8 +875,6 @@ indir_err: MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp); mlx4_qp_remove(mdev->dev, &rss_map->indir_qp); mlx4_qp_free(mdev->dev, &rss_map->indir_qp); -reserve_err: - mlx4_qp_release_range(mdev->dev, priv->base_qpn, 1); rss_err: for (i = 0; i < good_qps; i++) { mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i], @@ -904,7 +896,6 @@ void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv) MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->indir_qp); mlx4_qp_remove(mdev->dev, &rss_map->indir_qp); mlx4_qp_free(mdev->dev, &rss_map->indir_qp); - mlx4_qp_release_range(mdev->dev, priv->base_qpn, 1); for (i = 0; i < priv->rx_ring_num; i++) { mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i], diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c index 7813913b6d0f..67a209ba939d 100644 --- a/drivers/net/mlx4/fw.c +++ b/drivers/net/mlx4/fw.c @@ -740,6 +740,7 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param) #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00) #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12) #define INIT_HCA_LOG_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16) +#define INIT_HCA_UC_STEERING_OFFSET (INIT_HCA_MCAST_OFFSET + 0x18) #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b) #define INIT_HCA_TPT_OFFSET 0x0f0 #define INIT_HCA_DMPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00) @@ -800,6 +801,8 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param) MLX4_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET); MLX4_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET); MLX4_PUT(inbox, param->log_mc_hash_sz, INIT_HCA_LOG_MC_HASH_SZ_OFFSET); + if (dev->caps.vep_mc_steering) + MLX4_PUT(inbox, (u8) (1 << 3), INIT_HCA_UC_STEERING_OFFSET); MLX4_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET); /* TPT attributes */ diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index 1513a91b4bd4..d8bb4418581b 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -286,6 +286,10 @@ struct mlx4_vlan_table { int max; }; +struct mlx4_mac_entry { + u64 mac; +}; + struct mlx4_port_info { struct mlx4_dev *dev; int port; @@ -293,7 +297,9 @@ struct mlx4_port_info { struct device_attribute port_attr; enum mlx4_port_type tmp_type; struct mlx4_mac_table mac_table; + struct radix_tree_root mac_tree; struct mlx4_vlan_table vlan_table; + int base_qpn; }; struct mlx4_sense { diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h index ad4df66750bc..5a2c56023668 100644 --- a/drivers/net/mlx4/mlx4_en.h +++ b/drivers/net/mlx4/mlx4_en.h @@ -458,6 +458,7 @@ struct mlx4_en_priv { struct mlx4_en_rss_map rss_map; u32 flags; #define MLX4_EN_FLAG_PROMISC 0x1 +#define MLX4_EN_FLAG_MC_PROMISC 0x2 u32 tx_ring_num; u32 rx_ring_num; u32 rx_skb_size; diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c index 451339559bdc..eca7d8596f87 100644 --- a/drivers/net/mlx4/port.c +++ b/drivers/net/mlx4/port.c @@ -90,12 +90,79 @@ static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port, return err; } -int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index) +static int mlx4_uc_steer_add(struct mlx4_dev *dev, u8 port, + u64 mac, int *qpn, u8 reserve) { - struct mlx4_mac_table *table = &mlx4_priv(dev)->port[port].mac_table; + struct mlx4_qp qp; + u8 gid[16] = {0}; + int err; + + if (reserve) { + err = mlx4_qp_reserve_range(dev, 1, 1, qpn); + if (err) { + mlx4_err(dev, "Failed to reserve qp for mac registration\n"); + return err; + } + } + qp.qpn = *qpn; + + mac &= 0xffffffffffffULL; + mac = cpu_to_be64(mac << 16); + memcpy(&gid[10], &mac, ETH_ALEN); + gid[5] = port; + gid[7] = MLX4_UC_STEER << 1; + + err = mlx4_qp_attach_common(dev, &qp, gid, 0, + MLX4_PROT_ETH, MLX4_UC_STEER); + if (err && reserve) + mlx4_qp_release_range(dev, *qpn, 1); + + return err; +} + +static void mlx4_uc_steer_release(struct mlx4_dev *dev, u8 port, + u64 mac, int qpn, u8 free) +{ + struct mlx4_qp qp; + u8 gid[16] = {0}; + + qp.qpn = qpn; + mac &= 0xffffffffffffULL; + mac = cpu_to_be64(mac << 16); + memcpy(&gid[10], &mac, ETH_ALEN); + gid[5] = port; + gid[7] = MLX4_UC_STEER << 1; + + mlx4_qp_detach_common(dev, &qp, gid, MLX4_PROT_ETH, MLX4_UC_STEER); + if (free) + mlx4_qp_release_range(dev, qpn, 1); +} + +int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn, u8 wrap) +{ + struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; + struct mlx4_mac_table *table = &info->mac_table; + struct mlx4_mac_entry *entry; int i, err = 0; int free = -1; + if (dev->caps.vep_uc_steering) { + err = mlx4_uc_steer_add(dev, port, mac, qpn, 1); + if (!err) { + entry = kmalloc(sizeof *entry, GFP_KERNEL); + if (!entry) { + mlx4_uc_steer_release(dev, port, mac, *qpn, 1); + return -ENOMEM; + } + entry->mac = mac; + err = radix_tree_insert(&info->mac_tree, *qpn, entry); + if (err) { + mlx4_uc_steer_release(dev, port, mac, *qpn, 1); + return err; + } + } else + return err; + } mlx4_dbg(dev, "Registering MAC: 0x%llx\n", (unsigned long long) mac); mutex_lock(&table->mutex); for (i = 0; i < MLX4_MAX_MAC_NUM - 1; i++) { @@ -106,7 +173,6 @@ int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index) if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) { /* MAC already registered, increase refernce count */ - *index = i; ++table->refs[i]; goto out; } @@ -137,7 +203,8 @@ int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index) goto out; } - *index = free; + if (!dev->caps.vep_uc_steering) + *qpn = info->base_qpn + free; ++table->total; out: mutex_unlock(&table->mutex); @@ -145,20 +212,52 @@ out: } EXPORT_SYMBOL_GPL(mlx4_register_mac); -void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index) +static int validate_index(struct mlx4_dev *dev, + struct mlx4_mac_table *table, int index) { - struct mlx4_mac_table *table = &mlx4_priv(dev)->port[port].mac_table; + int err = 0; - mutex_lock(&table->mutex); - if (!table->refs[index]) { - mlx4_warn(dev, "No MAC entry for index %d\n", index); - goto out; + if (index < 0 || index >= table->max || !table->entries[index]) { + mlx4_warn(dev, "No valid Mac entry for the given index\n"); + err = -EINVAL; } - if (--table->refs[index]) { - mlx4_warn(dev, "Have more references for index %d," - "no need to modify MAC table\n", index); - goto out; + return err; +} + +static int find_index(struct mlx4_dev *dev, + struct mlx4_mac_table *table, u64 mac) +{ + int i; + for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { + if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) + return i; } + /* Mac not found */ + return -EINVAL; +} + +void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn) +{ + struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; + struct mlx4_mac_table *table = &info->mac_table; + int index = qpn - info->base_qpn; + struct mlx4_mac_entry *entry; + + if (dev->caps.vep_uc_steering) { + entry = radix_tree_lookup(&info->mac_tree, qpn); + if (entry) { + mlx4_uc_steer_release(dev, port, entry->mac, qpn, 1); + radix_tree_delete(&info->mac_tree, qpn); + index = find_index(dev, table, entry->mac); + kfree(entry); + } + } + + mutex_lock(&table->mutex); + + if (validate_index(dev, table, index)) + goto out; + table->entries[index] = 0; mlx4_set_port_mac_table(dev, port, table->entries); --table->total; @@ -167,6 +266,44 @@ out: } EXPORT_SYMBOL_GPL(mlx4_unregister_mac); +int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac, u8 wrap) +{ + struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; + struct mlx4_mac_table *table = &info->mac_table; + int index = qpn - info->base_qpn; + struct mlx4_mac_entry *entry; + int err; + + if (dev->caps.vep_uc_steering) { + entry = radix_tree_lookup(&info->mac_tree, qpn); + if (!entry) + return -EINVAL; + index = find_index(dev, table, entry->mac); + mlx4_uc_steer_release(dev, port, entry->mac, qpn, 0); + entry->mac = new_mac; + err = mlx4_uc_steer_add(dev, port, entry->mac, &qpn, 0); + if (err || index < 0) + return err; + } + + mutex_lock(&table->mutex); + + err = validate_index(dev, table, index); + if (err) + goto out; + + table->entries[index] = cpu_to_be64(new_mac | MLX4_MAC_VALID); + + err = mlx4_set_port_mac_table(dev, port, table->entries); + if (unlikely(err)) { + mlx4_err(dev, "Failed adding MAC: 0x%llx\n", (unsigned long long) new_mac); + table->entries[index] = 0; + } +out: + mutex_unlock(&table->mutex); + return err; +} +EXPORT_SYMBOL_GPL(mlx4_replace_mac); static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port, __be32 *entries) { diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index ebda939b9fc3..56fa5e1cd6d4 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -525,9 +525,15 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], int block_mcast_loopback, enum mlx4_protocol protocol); int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], enum mlx4_protocol protocol); - -int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index); -void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index); +int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port); +int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port); +int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port); +int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port); +int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode); + +int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn, u8 wrap); +void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn); +int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac, u8 wrap); int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx); int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index); -- cgit v1.2.3 From c1b43dca137f2154845122417fba86d4bae67182 Mon Sep 17 00:00:00 2001 From: Eli Cohen <eli@mellanox.co.il> Date: Tue, 22 Mar 2011 22:38:41 +0000 Subject: mlx4: Add blue flame support for kernel consumers Using blue flame can improve latency by allowing the HW to more efficiently access the WQE. This patch presents two functions that are used to allocate or release HW resources for using blue flame; the caller need to supply a struct mlx4_bf object when allocating resources. Consumers that make use of this API should post doorbells to the UAR object pointed by the initialized struct mlx4_bf; Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/main.c | 31 +++++++++++++++ drivers/net/mlx4/mlx4.h | 3 ++ drivers/net/mlx4/pd.c | 94 +++++++++++++++++++++++++++++++++++++++++++++ include/linux/mlx4/device.h | 13 +++++++ include/linux/mlx4/qp.h | 1 + 5 files changed, 142 insertions(+) diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index c8e276138f81..05c5671749aa 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -39,6 +39,7 @@ #include <linux/pci.h> #include <linux/dma-mapping.h> #include <linux/slab.h> +#include <linux/io-mapping.h> #include <linux/mlx4/device.h> #include <linux/mlx4/doorbell.h> @@ -721,8 +722,31 @@ static void mlx4_free_icms(struct mlx4_dev *dev) mlx4_free_icm(dev, priv->fw.aux_icm, 0); } +static int map_bf_area(struct mlx4_dev *dev) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + resource_size_t bf_start; + resource_size_t bf_len; + int err = 0; + + bf_start = pci_resource_start(dev->pdev, 2) + (dev->caps.num_uars << PAGE_SHIFT); + bf_len = pci_resource_len(dev->pdev, 2) - (dev->caps.num_uars << PAGE_SHIFT); + priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len); + if (!priv->bf_mapping) + err = -ENOMEM; + + return err; +} + +static void unmap_bf_area(struct mlx4_dev *dev) +{ + if (mlx4_priv(dev)->bf_mapping) + io_mapping_free(mlx4_priv(dev)->bf_mapping); +} + static void mlx4_close_hca(struct mlx4_dev *dev) { + unmap_bf_area(dev); mlx4_CLOSE_HCA(dev, 0); mlx4_free_icms(dev); mlx4_UNMAP_FA(dev); @@ -775,6 +799,9 @@ static int mlx4_init_hca(struct mlx4_dev *dev) goto err_stop_fw; } + if (map_bf_area(dev)) + mlx4_dbg(dev, "Failed to map blue flame area\n"); + init_hca.log_uar_sz = ilog2(dev->caps.num_uars); err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size); @@ -805,6 +832,7 @@ err_free_icm: mlx4_free_icms(dev); err_stop_fw: + unmap_bf_area(dev); mlx4_UNMAP_FA(dev); mlx4_free_icm(dev, priv->fw.fw_icm, 0); @@ -1196,6 +1224,9 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) pci_read_config_byte(pdev, PCI_REVISION_ID, &dev->rev_id); + INIT_LIST_HEAD(&priv->bf_list); + mutex_init(&priv->bf_mutex); + /* * Now reset the HCA before we touch the PCI capabilities or * attempt a firmware command, since a boot ROM may have left diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index d8bb4418581b..bc9a21657a4f 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -353,6 +353,9 @@ struct mlx4_priv { struct mutex port_mutex; struct mlx4_msix_ctl msix_ctl; struct mlx4_steer *steer; + struct list_head bf_list; + struct mutex bf_mutex; + struct io_mapping *bf_mapping; }; static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev) diff --git a/drivers/net/mlx4/pd.c b/drivers/net/mlx4/pd.c index c4988d6bd5b2..5210a0f31413 100644 --- a/drivers/net/mlx4/pd.c +++ b/drivers/net/mlx4/pd.c @@ -32,6 +32,7 @@ */ #include <linux/errno.h> +#include <linux/io-mapping.h> #include <asm/page.h> @@ -77,6 +78,7 @@ int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar) return -ENOMEM; uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index; + uar->map = NULL; return 0; } @@ -88,6 +90,98 @@ void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar) } EXPORT_SYMBOL_GPL(mlx4_uar_free); +int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + struct mlx4_uar *uar; + int err = 0; + int idx; + + if (!priv->bf_mapping) + return -ENOMEM; + + mutex_lock(&priv->bf_mutex); + if (!list_empty(&priv->bf_list)) + uar = list_entry(priv->bf_list.next, struct mlx4_uar, bf_list); + else { + uar = kmalloc(sizeof *uar, GFP_KERNEL); + if (!uar) { + err = -ENOMEM; + goto out; + } + err = mlx4_uar_alloc(dev, uar); + if (err) + goto free_kmalloc; + + uar->map = ioremap(uar->pfn << PAGE_SHIFT, PAGE_SIZE); + if (!uar->map) { + err = -ENOMEM; + goto free_uar; + } + + uar->bf_map = io_mapping_map_wc(priv->bf_mapping, uar->index << PAGE_SHIFT); + if (!uar->bf_map) { + err = -ENOMEM; + goto unamp_uar; + } + uar->free_bf_bmap = 0; + list_add(&uar->bf_list, &priv->bf_list); + } + + bf->uar = uar; + idx = ffz(uar->free_bf_bmap); + uar->free_bf_bmap |= 1 << idx; + bf->uar = uar; + bf->offset = 0; + bf->buf_size = dev->caps.bf_reg_size / 2; + bf->reg = uar->bf_map + idx * dev->caps.bf_reg_size; + if (uar->free_bf_bmap == (1 << dev->caps.bf_regs_per_page) - 1) + list_del_init(&uar->bf_list); + + goto out; + +unamp_uar: + bf->uar = NULL; + iounmap(uar->map); + +free_uar: + mlx4_uar_free(dev, uar); + +free_kmalloc: + kfree(uar); + +out: + mutex_unlock(&priv->bf_mutex); + return err; +} +EXPORT_SYMBOL_GPL(mlx4_bf_alloc); + +void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + int idx; + + if (!bf->uar || !bf->uar->bf_map) + return; + + mutex_lock(&priv->bf_mutex); + idx = (bf->reg - bf->uar->bf_map) / dev->caps.bf_reg_size; + bf->uar->free_bf_bmap &= ~(1 << idx); + if (!bf->uar->free_bf_bmap) { + if (!list_empty(&bf->uar->bf_list)) + list_del(&bf->uar->bf_list); + + io_mapping_unmap(bf->uar->bf_map); + iounmap(bf->uar->map); + mlx4_uar_free(dev, bf->uar); + kfree(bf->uar); + } else if (list_empty(&bf->uar->bf_list)) + list_add(&bf->uar->bf_list, &priv->bf_list); + + mutex_unlock(&priv->bf_mutex); +} +EXPORT_SYMBOL_GPL(mlx4_bf_free); + int mlx4_init_uar_table(struct mlx4_dev *dev) { if (dev->caps.num_uars <= 128) { diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 56fa5e1cd6d4..8985768e2c0d 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -351,6 +351,17 @@ struct mlx4_fmr { struct mlx4_uar { unsigned long pfn; int index; + struct list_head bf_list; + unsigned free_bf_bmap; + void __iomem *map; + void __iomem *bf_map; +}; + +struct mlx4_bf { + unsigned long offset; + int buf_size; + struct mlx4_uar *uar; + void __iomem *reg; }; struct mlx4_cq { @@ -478,6 +489,8 @@ void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn); int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar); void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar); +int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf); +void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf); int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift, struct mlx4_mtt *mtt); diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h index 0eeb2a1a867c..9e9eb21056ca 100644 --- a/include/linux/mlx4/qp.h +++ b/include/linux/mlx4/qp.h @@ -303,6 +303,7 @@ struct mlx4_wqe_data_seg { enum { MLX4_INLINE_ALIGN = 64, + MLX4_INLINE_SEG = 1 << 31, }; struct mlx4_wqe_inline_seg { -- cgit v1.2.3 From 42d1e017e2f040c3e3d62b6cfa3a26351a865d04 Mon Sep 17 00:00:00 2001 From: Eli Cohen <eli@mellanox.co.il> Date: Tue, 22 Mar 2011 22:38:45 +0000 Subject: mlx4_core: maintain available field in bitmap allocator Add mlx4_bitmap_avail() to give the number of available resources. We want to use this as a hint to whether to allocate a resources or not. This patch is introduced to be used with allocation blue flame registers. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/alloc.c | 13 +++++++++++++ drivers/net/mlx4/mlx4.h | 2 ++ 2 files changed, 15 insertions(+) diff --git a/drivers/net/mlx4/alloc.c b/drivers/net/mlx4/alloc.c index 3a4277f6fac4..116cae334dad 100644 --- a/drivers/net/mlx4/alloc.c +++ b/drivers/net/mlx4/alloc.c @@ -62,6 +62,9 @@ u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap) } else obj = -1; + if (obj != -1) + --bitmap->avail; + spin_unlock(&bitmap->lock); return obj; @@ -101,11 +104,19 @@ u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align) } else obj = -1; + if (obj != -1) + bitmap->avail -= cnt; + spin_unlock(&bitmap->lock); return obj; } +u32 mlx4_bitmap_avail(struct mlx4_bitmap *bitmap) +{ + return bitmap->avail; +} + void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt) { obj &= bitmap->max + bitmap->reserved_top - 1; @@ -115,6 +126,7 @@ void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt) bitmap->last = min(bitmap->last, obj); bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top) & bitmap->mask; + bitmap->avail += cnt; spin_unlock(&bitmap->lock); } @@ -130,6 +142,7 @@ int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask, bitmap->max = num - reserved_top; bitmap->mask = mask; bitmap->reserved_top = reserved_top; + bitmap->avail = num - reserved_top - reserved_bot; spin_lock_init(&bitmap->lock); bitmap->table = kzalloc(BITS_TO_LONGS(bitmap->max) * sizeof (long), GFP_KERNEL); diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index bc9a21657a4f..c1e0e5f1bcdb 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -105,6 +105,7 @@ struct mlx4_bitmap { u32 max; u32 reserved_top; u32 mask; + u32 avail; spinlock_t lock; unsigned long *table; }; @@ -371,6 +372,7 @@ u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap); void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj); u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align); void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt); +u32 mlx4_bitmap_avail(struct mlx4_bitmap *bitmap); int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask, u32 reserved_bot, u32 resetrved_top); void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap); -- cgit v1.2.3 From 9ace5e0176f165f04537497143506621d33a0139 Mon Sep 17 00:00:00 2001 From: Eli Cohen <eli@mellanox.co.il> Date: Tue, 22 Mar 2011 22:38:48 +0000 Subject: mlx4_core: reserve UARs for userspace consumers Do not allow a kernel consumer to allocate a UAR to serve for blue flame if the number of available UARs gets below MLX4_NUM_RESERVED_UARS (currently 8). This will allow userspace apps to open a device file and run things like ibv_devinfo. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/pd.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/mlx4/pd.c b/drivers/net/mlx4/pd.c index 5210a0f31413..1286b886dcea 100644 --- a/drivers/net/mlx4/pd.c +++ b/drivers/net/mlx4/pd.c @@ -39,6 +39,10 @@ #include "mlx4.h" #include "icm.h" +enum { + MLX4_NUM_RESERVED_UARS = 8 +}; + int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn) { struct mlx4_priv *priv = mlx4_priv(dev); @@ -104,6 +108,10 @@ int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf) if (!list_empty(&priv->bf_list)) uar = list_entry(priv->bf_list.next, struct mlx4_uar, bf_list); else { + if (mlx4_bitmap_avail(&priv->uar_table.bitmap) < MLX4_NUM_RESERVED_UARS) { + err = -ENOMEM; + goto out; + } uar = kmalloc(sizeof *uar, GFP_KERNEL); if (!uar) { err = -ENOMEM; -- cgit v1.2.3 From 87a5c3896f9cf3b7f374af95b342d1089989327a Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:38:52 +0000 Subject: mlx4_en: Using blue flame support Doorbell is used according to usage of BlueFlame. For Blue Flame to work in Ethernet mode QP number should have 0 at bits 6,7. Allocating range of QPs accordingly. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/en_netdev.c | 10 +++++- drivers/net/mlx4/en_tx.c | 72 ++++++++++++++++++++++++++++++++------------ drivers/net/mlx4/mlx4_en.h | 4 ++- 3 files changed, 64 insertions(+), 22 deletions(-) diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c index 08e680100db8..5762ebde4455 100644 --- a/drivers/net/mlx4/en_netdev.c +++ b/drivers/net/mlx4/en_netdev.c @@ -931,6 +931,13 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) { struct mlx4_en_port_profile *prof = priv->prof; int i; + int base_tx_qpn, err; + + err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &base_tx_qpn); + if (err) { + en_err(priv, "failed reserving range for TX rings\n"); + return err; + } /* Create tx Rings */ for (i = 0; i < priv->tx_ring_num; i++) { @@ -938,7 +945,7 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) prof->tx_ring_size, i, TX)) goto err; - if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], + if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], base_tx_qpn + i, prof->tx_ring_size, TXBB_SIZE)) goto err; } @@ -958,6 +965,7 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) err: en_err(priv, "Failed to allocate NIC resources\n"); + mlx4_qp_release_range(priv->mdev->dev, base_tx_qpn, priv->tx_ring_num); return -ENOMEM; } diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c index a680cd4a5ab6..01feb8fd42ad 100644 --- a/drivers/net/mlx4/en_tx.c +++ b/drivers/net/mlx4/en_tx.c @@ -44,6 +44,7 @@ enum { MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */ + MAX_BF = 256, }; static int inline_thold __read_mostly = MAX_INLINE; @@ -52,7 +53,7 @@ module_param_named(inline_thold, inline_thold, int, 0444); MODULE_PARM_DESC(inline_thold, "threshold for using inline data"); int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, - struct mlx4_en_tx_ring *ring, u32 size, + struct mlx4_en_tx_ring *ring, int qpn, u32 size, u16 stride) { struct mlx4_en_dev *mdev = priv->mdev; @@ -103,23 +104,25 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, "buf_size:%d dma:%llx\n", ring, ring->buf, ring->size, ring->buf_size, (unsigned long long) ring->wqres.buf.direct.map); - err = mlx4_qp_reserve_range(mdev->dev, 1, 1, &ring->qpn); - if (err) { - en_err(priv, "Failed reserving qp for tx ring.\n"); - goto err_map; - } - + ring->qpn = qpn; err = mlx4_qp_alloc(mdev->dev, ring->qpn, &ring->qp); if (err) { en_err(priv, "Failed allocating qp %d\n", ring->qpn); - goto err_reserve; + goto err_map; } ring->qp.event = mlx4_en_sqp_event; + err = mlx4_bf_alloc(mdev->dev, &ring->bf); + if (err) { + en_dbg(DRV, priv, "working without blueflame (%d)", err); + ring->bf.uar = &mdev->priv_uar; + ring->bf.uar->map = mdev->uar_map; + ring->bf_enabled = false; + } else + ring->bf_enabled = true; + return 0; -err_reserve: - mlx4_qp_release_range(mdev->dev, ring->qpn, 1); err_map: mlx4_en_unmap_buffer(&ring->wqres.buf); err_hwq_res: @@ -139,6 +142,8 @@ void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_dev *mdev = priv->mdev; en_dbg(DRV, priv, "Destroying tx ring, qpn: %d\n", ring->qpn); + if (ring->bf_enabled) + mlx4_bf_free(mdev->dev, &ring->bf); mlx4_qp_remove(mdev->dev, &ring->qp); mlx4_qp_free(mdev->dev, &ring->qp); mlx4_qp_release_range(mdev->dev, ring->qpn, 1); @@ -171,6 +176,8 @@ int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv, mlx4_en_fill_qp_context(priv, ring->size, ring->stride, 1, 0, ring->qpn, ring->cqn, &ring->context); + if (ring->bf_enabled) + ring->context.usr_page = cpu_to_be32(ring->bf.uar->index); err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, &ring->context, &ring->qp, &ring->qp_state); @@ -591,6 +598,11 @@ u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb) return skb_tx_hash(dev, skb); } +static void mlx4_bf_copy(unsigned long *dst, unsigned long *src, unsigned bytecnt) +{ + __iowrite64_copy(dst, src, bytecnt / 8); +} + netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); @@ -609,12 +621,13 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) int desc_size; int real_size; dma_addr_t dma; - u32 index; + u32 index, bf_index; __be32 op_own; u16 vlan_tag = 0; int i; int lso_header_size; void *fragptr; + bool bounce = false; if (!priv->port_up) goto tx_drop; @@ -657,13 +670,16 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) /* Packet is good - grab an index and transmit it */ index = ring->prod & ring->size_mask; + bf_index = ring->prod; /* See if we have enough space for whole descriptor TXBB for setting * SW ownership on next descriptor; if not, use a bounce buffer. */ if (likely(index + nr_txbb <= ring->size)) tx_desc = ring->buf + index * TXBB_SIZE; - else + else { tx_desc = (struct mlx4_en_tx_desc *) ring->bounce_buf; + bounce = true; + } /* Save skb in tx_info ring */ tx_info = &ring->tx_info[index]; @@ -768,21 +784,37 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) ring->prod += nr_txbb; /* If we used a bounce buffer then copy descriptor back into place */ - if (tx_desc == (struct mlx4_en_tx_desc *) ring->bounce_buf) + if (bounce) tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size); /* Run destructor before passing skb to HW */ if (likely(!skb_shared(skb))) skb_orphan(skb); - /* Ensure new descirptor hits memory - * before setting ownership of this descriptor to HW */ - wmb(); - tx_desc->ctrl.owner_opcode = op_own; + if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tag) { + *(u32 *) (&tx_desc->ctrl.vlan_tag) |= ring->doorbell_qpn; + op_own |= htonl((bf_index & 0xffff) << 8); + /* Ensure new descirptor hits memory + * before setting ownership of this descriptor to HW */ + wmb(); + tx_desc->ctrl.owner_opcode = op_own; - /* Ring doorbell! */ - wmb(); - writel(ring->doorbell_qpn, mdev->uar_map + MLX4_SEND_DOORBELL); + wmb(); + + mlx4_bf_copy(ring->bf.reg + ring->bf.offset, (unsigned long *) &tx_desc->ctrl, + desc_size); + + wmb(); + + ring->bf.offset ^= ring->bf.buf_size; + } else { + /* Ensure new descirptor hits memory + * before setting ownership of this descriptor to HW */ + wmb(); + tx_desc->ctrl.owner_opcode = op_own; + wmb(); + writel(ring->doorbell_qpn, ring->bf.uar->map + MLX4_SEND_DOORBELL); + } /* Poll CQ here */ mlx4_en_xmit_poll(priv, tx_ind); diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h index 5a2c56023668..edcb53562c10 100644 --- a/drivers/net/mlx4/mlx4_en.h +++ b/drivers/net/mlx4/mlx4_en.h @@ -248,6 +248,8 @@ struct mlx4_en_tx_ring { unsigned long bytes; unsigned long packets; spinlock_t comp_lock; + struct mlx4_bf bf; + bool bf_enabled; }; struct mlx4_en_rx_desc { @@ -518,7 +520,7 @@ u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb); netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev); int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring, - u32 size, u16 stride); + int qpn, u32 size, u16 stride); void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring); int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring, -- cgit v1.2.3 From 61b85bf6060bfd205c218f5aeb71c19a24abb0cd Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Tue, 22 Mar 2011 22:39:05 +0000 Subject: mlx4_en: updated driver version to 1.5.4.1 Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/mlx4_en.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h index edcb53562c10..e30f6099c0de 100644 --- a/drivers/net/mlx4/mlx4_en.h +++ b/drivers/net/mlx4/mlx4_en.h @@ -49,8 +49,8 @@ #include "en_port.h" #define DRV_NAME "mlx4_en" -#define DRV_VERSION "1.5.1.6" -#define DRV_RELDATE "August 2010" +#define DRV_VERSION "1.5.4.1" +#define DRV_RELDATE "March 2011" #define MLX4_EN_MSG_LEVEL (NETIF_MSG_LINK | NETIF_MSG_IFDOWN) -- cgit v1.2.3 From 465d52437d5ce8d4eb9da0d3e3818b51cff163a1 Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:44 +0000 Subject: NFSv4.1: don't send COMMIT to ds for data sync writes Based on consensus reached in Feb 2011 interim IETF meeting regarding use of LAYOUTCOMMIT, it has been decided that a NFS_DATA_SYNC return from a WRITE to data server should not initiate a COMMIT. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/write.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 55a8c3671233..92b4a6614fd3 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -474,7 +474,10 @@ nfs_clear_request_commit(struct nfs_page *req) static inline int nfs_write_need_commit(struct nfs_write_data *data) { - return data->verf.committed != NFS_FILE_SYNC; + if (data->verf.committed == NFS_DATA_SYNC) + return data->lseg == NULL; + else + return data->verf.committed != NFS_FILE_SYNC; } static inline -- cgit v1.2.3 From 9ace33cdc6562699a780b4716d9d52c55dd2151a Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:45 +0000 Subject: NFSv4.1: rearrange nfs_commit_rpcsetup Reorder nfs_commit_rpcsetup, preparing for a pnfs entry point. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/write.c | 60 ++++++++++++++++++++++++++++++++-------------------------- 1 file changed, 33 insertions(+), 27 deletions(-) diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 92b4a6614fd3..bf672faa4885 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1293,32 +1293,49 @@ static void nfs_commitdata_release(void *data) nfs_commit_free(wdata); } -/* - * Set up the argument/result storage required for the RPC call. - */ -static int nfs_commit_rpcsetup(struct list_head *head, - struct nfs_write_data *data, - int how) +static int nfs_initiate_commit(struct nfs_write_data *data, struct rpc_clnt *clnt, + const struct rpc_call_ops *call_ops, + int how) { - struct nfs_page *first = nfs_list_entry(head->next); - struct inode *inode = first->wb_context->path.dentry->d_inode; - int priority = flush_task_priority(how); struct rpc_task *task; + int priority = flush_task_priority(how); struct rpc_message msg = { .rpc_argp = &data->args, .rpc_resp = &data->res, - .rpc_cred = first->wb_context->cred, + .rpc_cred = data->cred, }; struct rpc_task_setup task_setup_data = { .task = &data->task, - .rpc_client = NFS_CLIENT(inode), + .rpc_client = clnt, .rpc_message = &msg, - .callback_ops = &nfs_commit_ops, + .callback_ops = call_ops, .callback_data = data, .workqueue = nfsiod_workqueue, .flags = RPC_TASK_ASYNC, .priority = priority, }; + /* Set up the initial task struct. */ + NFS_PROTO(data->inode)->commit_setup(data, &msg); + + dprintk("NFS: %5u initiated commit call\n", data->task.tk_pid); + + task = rpc_run_task(&task_setup_data); + if (IS_ERR(task)) + return PTR_ERR(task); + if (how & FLUSH_SYNC) + rpc_wait_for_completion_task(task); + rpc_put_task(task); + return 0; +} + +/* + * Set up the argument/result storage required for the RPC call. + */ +static void nfs_init_commit(struct nfs_write_data *data, + struct list_head *head) +{ + struct nfs_page *first = nfs_list_entry(head->next); + struct inode *inode = first->wb_context->path.dentry->d_inode; /* Set up the RPC argument and reply structs * NB: take care not to mess about with data->commit et al. */ @@ -1326,7 +1343,8 @@ static int nfs_commit_rpcsetup(struct list_head *head, list_splice_init(head, &data->pages); data->inode = inode; - data->cred = msg.rpc_cred; + data->cred = first->wb_context->cred; + data->mds_ops = &nfs_commit_ops; data->args.fh = NFS_FH(data->inode); /* Note: we always request a commit of the entire inode */ @@ -1337,19 +1355,6 @@ static int nfs_commit_rpcsetup(struct list_head *head, data->res.fattr = &data->fattr; data->res.verf = &data->verf; nfs_fattr_init(&data->fattr); - - /* Set up the initial task struct. */ - NFS_PROTO(inode)->commit_setup(data, &msg); - - dprintk("NFS: %5u initiated commit call\n", data->task.tk_pid); - - task = rpc_run_task(&task_setup_data); - if (IS_ERR(task)) - return PTR_ERR(task); - if (how & FLUSH_SYNC) - rpc_wait_for_completion_task(task); - rpc_put_task(task); - return 0; } /* @@ -1367,7 +1372,8 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how) goto out_bad; /* Set up the argument struct */ - return nfs_commit_rpcsetup(head, data, how); + nfs_init_commit(data, head); + return nfs_initiate_commit(data, NFS_CLIENT(inode), data->mds_ops, how); out_bad: while (!list_empty(head)) { req = nfs_list_entry(head->next); -- cgit v1.2.3 From 5f452431e229ea14df61b0ac89eed5881414eef9 Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:46 +0000 Subject: NFSv4.1: add callback to nfs4_commit_done Add a callback that the pnfs layout driver can use to do its own error handling of the data server's COMMIT response. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4proc.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 1d84e7088af9..bcc29bdc9bee 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3195,12 +3195,9 @@ static void nfs4_proc_write_setup(struct nfs_write_data *data, struct rpc_messag msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_WRITE]; } -static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data) +static int nfs4_commit_done_cb(struct rpc_task *task, struct nfs_write_data *data) { struct inode *inode = data->inode; - - if (!nfs4_sequence_done(task, &data->res.seq_res)) - return -EAGAIN; if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) { nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client); @@ -3210,11 +3207,20 @@ static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data) return 0; } +static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data) +{ + if (!nfs4_sequence_done(task, &data->res.seq_res)) + return -EAGAIN; + return data->write_done_cb(task, data); +} + static void nfs4_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg) { struct nfs_server *server = NFS_SERVER(data->inode); data->args.bitmask = server->cache_consistency_bitmask; + if (!data->write_done_cb) + data->write_done_cb = nfs4_commit_done_cb; data->res.server = server; msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COMMIT]; } -- cgit v1.2.3 From 64bfeb49bd1c2351a8415f7fe6b25eef208872a5 Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:47 +0000 Subject: NFSv4.1: pull error handling out of nfs_commit_list Create a separate support function for later use by data server commit code. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/write.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/fs/nfs/write.c b/fs/nfs/write.c index bf672faa4885..dbc801810e75 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1357,6 +1357,21 @@ static void nfs_init_commit(struct nfs_write_data *data, nfs_fattr_init(&data->fattr); } +static void nfs_retry_commit(struct list_head *page_list) +{ + struct nfs_page *req; + + while (!list_empty(page_list)) { + req = nfs_list_entry(page_list->next); + nfs_list_remove_request(req); + nfs_mark_request_commit(req); + dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); + dec_bdi_stat(req->wb_page->mapping->backing_dev_info, + BDI_RECLAIMABLE); + nfs_clear_page_tag_locked(req); + } +} + /* * Commit dirty pages */ @@ -1364,7 +1379,6 @@ static int nfs_commit_list(struct inode *inode, struct list_head *head, int how) { struct nfs_write_data *data; - struct nfs_page *req; data = nfs_commitdata_alloc(); @@ -1375,15 +1389,7 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how) nfs_init_commit(data, head); return nfs_initiate_commit(data, NFS_CLIENT(inode), data->mds_ops, how); out_bad: - while (!list_empty(head)) { - req = nfs_list_entry(head->next); - nfs_list_remove_request(req); - nfs_mark_request_commit(req); - dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); - dec_bdi_stat(req->wb_page->mapping->backing_dev_info, - BDI_RECLAIMABLE); - nfs_clear_page_tag_locked(req); - } + nfs_retry_commit(head); nfs_commit_clear_lock(NFS_I(inode)); return -ENOMEM; } -- cgit v1.2.3 From 5917ce8440ba0b3f2adee613b5f1258ac5efff02 Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:48 +0000 Subject: NFSv4.1: pull out code from nfs_commit_release Create a separate support function for later use by data server commit code. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/write.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/fs/nfs/write.c b/fs/nfs/write.c index dbc801810e75..f5f005e9db48 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1409,10 +1409,9 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata) return; } -static void nfs_commit_release(void *calldata) +static void nfs_commit_release_pages(struct nfs_write_data *data) { - struct nfs_write_data *data = calldata; - struct nfs_page *req; + struct nfs_page *req; int status = data->task.tk_status; while (!list_empty(&data->pages)) { @@ -1446,6 +1445,13 @@ static void nfs_commit_release(void *calldata) next: nfs_clear_page_tag_locked(req); } +} + +static void nfs_commit_release(void *calldata) +{ + struct nfs_write_data *data = calldata; + + nfs_commit_release_pages(data); nfs_commit_clear_lock(NFS_I(data->inode)); nfs_commitdata_release(calldata); } -- cgit v1.2.3 From c879513e91c9e38957f0d9647d22469f1887e4da Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:49 +0000 Subject: NFSv4.1: shift filelayout_free_lseg Move it up to avoid forward declaration in later patch. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4filelayout.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 428558464817..9401afd5650e 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -496,6 +496,16 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, return 0; } +static void +filelayout_free_lseg(struct pnfs_layout_segment *lseg) +{ + struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg); + + dprintk("--> %s\n", __func__); + nfs4_fl_put_deviceid(fl->dsaddr); + _filelayout_free_lseg(fl); +} + static struct pnfs_layout_segment * filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid, struct nfs4_layoutget_res *lgr) @@ -517,16 +527,6 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid, return &fl->generic_hdr; } -static void -filelayout_free_lseg(struct pnfs_layout_segment *lseg) -{ - struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg); - - dprintk("--> %s\n", __func__); - nfs4_fl_put_deviceid(fl->dsaddr); - _filelayout_free_lseg(fl); -} - /* * filelayout_pg_test(). Called by nfs_can_coalesce_requests() * -- cgit v1.2.3 From 425eb736cd905181a4dd4dc8d66342a7c7ab2f27 Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:50 +0000 Subject: NFSv4.1: alloc and free commit_buckets Create a preallocated list header to hold nfs_pages for each non-MDS COMMIT destination. Note this is not necessarily each DS, but is basically each <DS, fh> pair. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4filelayout.c | 22 ++++++++++++++++++++++ fs/nfs/nfs4filelayout.h | 2 ++ 2 files changed, 24 insertions(+) diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 9401afd5650e..03ff80c67c6e 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -503,6 +503,7 @@ filelayout_free_lseg(struct pnfs_layout_segment *lseg) dprintk("--> %s\n", __func__); nfs4_fl_put_deviceid(fl->dsaddr); + kfree(fl->commit_buckets); _filelayout_free_lseg(fl); } @@ -524,6 +525,27 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid, _filelayout_free_lseg(fl); return NULL; } + + /* This assumes there is only one IOMODE_RW lseg. What + * we really want to do is have a layout_hdr level + * dictionary of <multipath_list4, fh> keys, each + * associated with a struct list_head, populated by calls + * to filelayout_write_pagelist(). + * */ + if ((!fl->commit_through_mds) && (lgr->range.iomode == IOMODE_RW)) { + int i; + int size = (fl->stripe_type == STRIPE_SPARSE) ? + fl->dsaddr->ds_num : fl->dsaddr->stripe_count; + + fl->commit_buckets = kcalloc(size, sizeof(struct list_head), GFP_KERNEL); + if (!fl->commit_buckets) { + filelayout_free_lseg(&fl->generic_hdr); + return NULL; + } + fl->number_of_buckets = size; + for (i = 0; i < size; i++) + INIT_LIST_HEAD(&fl->commit_buckets[i]); + } return &fl->generic_hdr; } diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index ee0c907742b5..085a354e0f08 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -79,6 +79,8 @@ struct nfs4_filelayout_segment { struct nfs4_file_layout_dsaddr *dsaddr; /* Point to GETDEVINFO data */ unsigned int num_fh; struct nfs_fh **fh_array; + struct list_head *commit_buckets; /* Sort commits to ds */ + int number_of_buckets; }; static inline struct nfs4_filelayout_segment * -- cgit v1.2.3 From a861a1e1c398fe34701569fd8ac9225dfe0a9a7e Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:51 +0000 Subject: NFSv4.1: add generic layer hooks for pnfs COMMIT We create three major hooks for the pnfs code. pnfs_mark_request_commit() is called during writeback_done from nfs_mark_request_commit, which gives the driver an opportunity to claim it wants control over commiting a particular req. pnfs_choose_commit_list() is called from nfs_scan_list to choose which list a given req should be added to, based on where we intend to send it for COMMIT. It is up to the driver to have preallocated list headers for each destination it may need. pnfs_commit_list() is how the driver actually takes control, it is used instead of nfs_commit_list(). In order to pass information between the above functions, we create a union in nfs_page to hold a lseg (which is possible because the req is not on any list while in transition), and add some flags to indicate if we need to use the pnfs code. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/pagelist.c | 5 ++-- fs/nfs/pnfs.h | 73 ++++++++++++++++++++++++++++++++++++++++++++++++ fs/nfs/write.c | 41 +++++++++++++++++---------- include/linux/nfs_fs.h | 1 + include/linux/nfs_page.h | 6 +++- 5 files changed, 108 insertions(+), 18 deletions(-) diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index fd85618149a1..87a593c2b055 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -398,6 +398,7 @@ int nfs_scan_list(struct nfs_inode *nfsi, pgoff_t idx_end; int found, i; int res; + struct list_head *list; res = 0; if (npages == 0) @@ -418,10 +419,10 @@ int nfs_scan_list(struct nfs_inode *nfsi, idx_start = req->wb_index + 1; if (nfs_set_page_tag_locked(req)) { kref_get(&req->wb_kref); - nfs_list_remove_request(req); radix_tree_tag_clear(&nfsi->nfs_page_tree, req->wb_index, tag); - nfs_list_add_request(req, dst); + list = pnfs_choose_commit_list(req, dst); + nfs_list_add_request(req, list); res++; if (res == INT_MAX) goto out; diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 6380b9405bcd..5370f1b9aa43 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -74,6 +74,13 @@ struct pnfs_layoutdriver_type { /* test for nfs page cache coalescing */ int (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *); + /* Returns true if layoutdriver wants to divert this request to + * driver's commit routine. + */ + bool (*mark_pnfs_commit)(struct pnfs_layout_segment *lseg); + struct list_head * (*choose_commit_list) (struct nfs_page *req); + int (*commit_pagelist)(struct inode *inode, struct list_head *mds_pages, int how); + /* * Return PNFS_ATTEMPTED to indicate the layout code has attempted * I/O, else return PNFS_NOT_ATTEMPTED to fall back to normal NFS @@ -169,6 +176,51 @@ static inline int pnfs_enabled_sb(struct nfs_server *nfss) return nfss->pnfs_curr_ld != NULL; } +static inline void +pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg) +{ + if (lseg) { + struct pnfs_layoutdriver_type *ld; + + ld = NFS_SERVER(req->wb_page->mapping->host)->pnfs_curr_ld; + if (ld->mark_pnfs_commit && ld->mark_pnfs_commit(lseg)) { + set_bit(PG_PNFS_COMMIT, &req->wb_flags); + req->wb_commit_lseg = get_lseg(lseg); + } + } +} + +static inline int +pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how) +{ + if (!test_and_clear_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags)) + return PNFS_NOT_ATTEMPTED; + return NFS_SERVER(inode)->pnfs_curr_ld->commit_pagelist(inode, mds_pages, how); +} + +static inline struct list_head * +pnfs_choose_commit_list(struct nfs_page *req, struct list_head *mds) +{ + struct list_head *rv; + + if (test_and_clear_bit(PG_PNFS_COMMIT, &req->wb_flags)) { + struct inode *inode = req->wb_commit_lseg->pls_layout->plh_inode; + + set_bit(NFS_INO_PNFS_COMMIT, &NFS_I(inode)->flags); + rv = NFS_SERVER(inode)->pnfs_curr_ld->choose_commit_list(req); + /* matched by ref taken when PG_PNFS_COMMIT is set */ + put_lseg(req->wb_commit_lseg); + } else + rv = mds; + return rv; +} + +static inline void pnfs_clear_request_commit(struct nfs_page *req) +{ + if (test_and_clear_bit(PG_PNFS_COMMIT, &req->wb_flags)) + put_lseg(req->wb_commit_lseg); +} + #else /* CONFIG_NFS_V4_1 */ static inline void pnfs_destroy_all_layouts(struct nfs_client *clp) @@ -252,6 +304,27 @@ pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *ino) pgio->pg_test = NULL; } +static inline void +pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg) +{ +} + +static inline int +pnfs_commit_list(struct inode *inode, struct list_head *mds_pages, int how) +{ + return PNFS_NOT_ATTEMPTED; +} + +static inline struct list_head * +pnfs_choose_commit_list(struct nfs_page *req, struct list_head *mds) +{ + return mds; +} + +static inline void pnfs_clear_request_commit(struct nfs_page *req) +{ +} + #endif /* CONFIG_NFS_V4_1 */ #endif /* FS_NFS_PNFS_H */ diff --git a/fs/nfs/write.c b/fs/nfs/write.c index f5f005e9db48..6927a18b6891 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -441,7 +441,7 @@ nfs_mark_request_dirty(struct nfs_page *req) * Add a request to the inode's commit list. */ static void -nfs_mark_request_commit(struct nfs_page *req) +nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg) { struct inode *inode = req->wb_context->path.dentry->d_inode; struct nfs_inode *nfsi = NFS_I(inode); @@ -453,6 +453,7 @@ nfs_mark_request_commit(struct nfs_page *req) NFS_PAGE_TAG_COMMIT); nfsi->ncommit++; spin_unlock(&inode->i_lock); + pnfs_mark_request_commit(req, lseg); inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE); __mark_inode_dirty(inode, I_DIRTY_DATASYNC); @@ -481,10 +482,11 @@ int nfs_write_need_commit(struct nfs_write_data *data) } static inline -int nfs_reschedule_unstable_write(struct nfs_page *req) +int nfs_reschedule_unstable_write(struct nfs_page *req, + struct nfs_write_data *data) { if (test_and_clear_bit(PG_NEED_COMMIT, &req->wb_flags)) { - nfs_mark_request_commit(req); + nfs_mark_request_commit(req, data->lseg); return 1; } if (test_and_clear_bit(PG_NEED_RESCHED, &req->wb_flags)) { @@ -495,7 +497,7 @@ int nfs_reschedule_unstable_write(struct nfs_page *req) } #else static inline void -nfs_mark_request_commit(struct nfs_page *req) +nfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg) { } @@ -512,7 +514,8 @@ int nfs_write_need_commit(struct nfs_write_data *data) } static inline -int nfs_reschedule_unstable_write(struct nfs_page *req) +int nfs_reschedule_unstable_write(struct nfs_page *req, + struct nfs_write_data *data) { return 0; } @@ -615,9 +618,11 @@ static struct nfs_page *nfs_try_to_update_request(struct inode *inode, } if (nfs_clear_request_commit(req) && - radix_tree_tag_clear(&NFS_I(inode)->nfs_page_tree, - req->wb_index, NFS_PAGE_TAG_COMMIT) != NULL) + radix_tree_tag_clear(&NFS_I(inode)->nfs_page_tree, + req->wb_index, NFS_PAGE_TAG_COMMIT) != NULL) { NFS_I(inode)->ncommit--; + pnfs_clear_request_commit(req); + } /* Okay, the request matches. Update the region */ if (offset < req->wb_offset) { @@ -765,11 +770,12 @@ int nfs_updatepage(struct file *file, struct page *page, return status; } -static void nfs_writepage_release(struct nfs_page *req) +static void nfs_writepage_release(struct nfs_page *req, + struct nfs_write_data *data) { struct page *page = req->wb_page; - if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req)) + if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req, data)) nfs_inode_remove_request(req); nfs_clear_page_tag_locked(req); nfs_end_page_writeback(page); @@ -1087,7 +1093,7 @@ static void nfs_writeback_release_partial(void *calldata) out: if (atomic_dec_and_test(&req->wb_complete)) - nfs_writepage_release(req); + nfs_writepage_release(req, data); nfs_writedata_release(calldata); } @@ -1154,7 +1160,7 @@ static void nfs_writeback_release_full(void *calldata) if (nfs_write_need_commit(data)) { memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf)); - nfs_mark_request_commit(req); + nfs_mark_request_commit(req, data->lseg); dprintk(" marked for commit\n"); goto next; } @@ -1357,14 +1363,15 @@ static void nfs_init_commit(struct nfs_write_data *data, nfs_fattr_init(&data->fattr); } -static void nfs_retry_commit(struct list_head *page_list) +static void nfs_retry_commit(struct list_head *page_list, + struct pnfs_layout_segment *lseg) { struct nfs_page *req; while (!list_empty(page_list)) { req = nfs_list_entry(page_list->next); nfs_list_remove_request(req); - nfs_mark_request_commit(req); + nfs_mark_request_commit(req, lseg); dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); dec_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE); @@ -1389,7 +1396,7 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how) nfs_init_commit(data, head); return nfs_initiate_commit(data, NFS_CLIENT(inode), data->mds_ops, how); out_bad: - nfs_retry_commit(head); + nfs_retry_commit(head, NULL); nfs_commit_clear_lock(NFS_I(inode)); return -ENOMEM; } @@ -1477,7 +1484,11 @@ int nfs_commit_inode(struct inode *inode, int how) res = nfs_scan_commit(inode, &head, 0, 0); spin_unlock(&inode->i_lock); if (res) { - int error = nfs_commit_list(inode, &head, how); + int error; + + error = pnfs_commit_list(inode, &head, how); + if (error == PNFS_NOT_ATTEMPTED) + error = nfs_commit_list(inode, &head, how); if (error < 0) return error; if (!may_wait) diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 4179c368844b..eddda6ce7c42 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -226,6 +226,7 @@ struct nfs_inode { #define NFS_INO_FSCACHE (5) /* inode can be cached by FS-Cache */ #define NFS_INO_FSCACHE_LOCK (6) /* FS-Cache cookie management lock */ #define NFS_INO_COMMIT (7) /* inode is committing unstable writes */ +#define NFS_INO_PNFS_COMMIT (8) /* use pnfs code for commit */ static inline struct nfs_inode *NFS_I(const struct inode *inode) { diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 92d54c81f51e..8023e4e25133 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -33,11 +33,15 @@ enum { PG_CLEAN, PG_NEED_COMMIT, PG_NEED_RESCHED, + PG_PNFS_COMMIT, }; struct nfs_inode; struct nfs_page { - struct list_head wb_list; /* Defines state of page: */ + union { + struct list_head wb_list; /* Defines state of page: */ + struct pnfs_layout_segment *wb_commit_lseg; /* Used when PG_PNFS_COMMIT set */ + }; struct page *wb_page; /* page to read in/write out */ struct nfs_open_context *wb_context; /* File state context info */ struct nfs_lock_context *wb_lock_context; /* lock context info */ -- cgit v1.2.3 From 988b6dceb0ae6d642587c8594529b94f6be0c5ea Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:52 +0000 Subject: NFSv4.1: remove GETATTR from ds commits Any COMMIT compound directed to a data server needs to have the GETATTR calls suppressed. We here, make sure the field we are testing (data->lseg) is set and refcounted correctly. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4proc.c | 8 ++++++-- fs/nfs/nfs4xdr.c | 8 +++++--- fs/nfs/write.c | 7 +++++-- 3 files changed, 16 insertions(+), 7 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index bcc29bdc9bee..5d61cccc8d4d 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3217,8 +3217,12 @@ static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data) static void nfs4_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg) { struct nfs_server *server = NFS_SERVER(data->inode); - - data->args.bitmask = server->cache_consistency_bitmask; + + if (data->lseg) { + data->args.bitmask = NULL; + data->res.fattr = NULL; + } else + data->args.bitmask = server->cache_consistency_bitmask; if (!data->write_done_cb) data->write_done_cb = nfs4_commit_done_cb; data->res.server = server; diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 0cf560f77884..07cdf925c524 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -2294,7 +2294,8 @@ static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_commit(xdr, args, &hdr); - encode_getfattr(xdr, args->bitmask, &hdr); + if (args->bitmask) + encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } @@ -5723,8 +5724,9 @@ static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, status = decode_commit(xdr, res); if (status) goto out; - decode_getfattr(xdr, res->fattr, res->server, - !RPC_IS_ASYNC(rqstp->rq_task)); + if (res->fattr) + decode_getfattr(xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 6927a18b6891..cae5d160d835 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1295,6 +1295,7 @@ static void nfs_commitdata_release(void *data) { struct nfs_write_data *wdata = data; + put_lseg(wdata->lseg); put_nfs_open_context(wdata->args.context); nfs_commit_free(wdata); } @@ -1338,7 +1339,8 @@ static int nfs_initiate_commit(struct nfs_write_data *data, struct rpc_clnt *cln * Set up the argument/result storage required for the RPC call. */ static void nfs_init_commit(struct nfs_write_data *data, - struct list_head *head) + struct list_head *head, + struct pnfs_layout_segment *lseg) { struct nfs_page *first = nfs_list_entry(head->next); struct inode *inode = first->wb_context->path.dentry->d_inode; @@ -1350,6 +1352,7 @@ static void nfs_init_commit(struct nfs_write_data *data, data->inode = inode; data->cred = first->wb_context->cred; + data->lseg = lseg; /* reference transferred */ data->mds_ops = &nfs_commit_ops; data->args.fh = NFS_FH(data->inode); @@ -1393,7 +1396,7 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how) goto out_bad; /* Set up the argument struct */ - nfs_init_commit(data, head); + nfs_init_commit(data, head, NULL); return nfs_initiate_commit(data, NFS_CLIENT(inode), data->mds_ops, how); out_bad: nfs_retry_commit(head, NULL); -- cgit v1.2.3 From e0c2b3801828aadb65dec9f67f7c6b7a675ad007 Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:53 +0000 Subject: NFSv4.1: filelayout driver specific code for COMMIT Implement all the hooks created in the previous patches. This requires exporting quite a few functions and adding a few structure fields. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/inode.c | 1 + fs/nfs/internal.h | 14 +++ fs/nfs/nfs4filelayout.c | 235 ++++++++++++++++++++++++++++++++++++++++++++++++ fs/nfs/pnfs.c | 1 + fs/nfs/write.c | 21 +++-- include/linux/nfs_fs.h | 1 + include/linux/nfs_xdr.h | 1 + 7 files changed, 267 insertions(+), 7 deletions(-) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 477a2e512b39..229e586b1a20 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1470,6 +1470,7 @@ static inline void nfs4_init_once(struct nfs_inode *nfsi) nfsi->delegation_state = 0; init_rwsem(&nfsi->rwsem); nfsi->layout = NULL; + atomic_set(&nfsi->commits_outstanding, 0); #endif } diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index d1ddc23c404d..708705062216 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -276,11 +276,25 @@ extern int nfs_initiate_read(struct nfs_read_data *data, struct rpc_clnt *clnt, extern void nfs_read_prepare(struct rpc_task *task, void *calldata); /* write.c */ +extern void nfs_commit_free(struct nfs_write_data *p); extern int nfs_initiate_write(struct nfs_write_data *data, struct rpc_clnt *clnt, const struct rpc_call_ops *call_ops, int how); extern void nfs_write_prepare(struct rpc_task *task, void *calldata); +extern int nfs_initiate_commit(struct nfs_write_data *data, + struct rpc_clnt *clnt, + const struct rpc_call_ops *call_ops, + int how); +extern void nfs_init_commit(struct nfs_write_data *data, + struct list_head *head, + struct pnfs_layout_segment *lseg); +void nfs_retry_commit(struct list_head *page_list, + struct pnfs_layout_segment *lseg); +void nfs_commit_clear_lock(struct nfs_inode *nfsi); +void nfs_commitdata_release(void *data); +void nfs_commit_release_pages(struct nfs_write_data *data); + #ifdef CONFIG_MIGRATION extern int nfs_migrate_page(struct address_space *, struct page *, struct page *); diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 03ff80c67c6e..97e75a22af72 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -213,6 +213,37 @@ static int filelayout_write_done_cb(struct rpc_task *task, return 0; } +/* Fake up some data that will cause nfs_commit_release to retry the writes. */ +static void prepare_to_resend_writes(struct nfs_write_data *data) +{ + struct nfs_page *first = nfs_list_entry(data->pages.next); + + data->task.tk_status = 0; + memcpy(data->verf.verifier, first->wb_verf.verifier, + sizeof(first->wb_verf.verifier)); + data->verf.verifier[0]++; /* ensure verifier mismatch */ +} + +static int filelayout_commit_done_cb(struct rpc_task *task, + struct nfs_write_data *data) +{ + int reset = 0; + + if (filelayout_async_handle_error(task, data->args.context->state, + data->ds_clp, &reset) == -EAGAIN) { + dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n", + __func__, data->ds_clp, data->ds_clp->cl_session); + if (reset) { + prepare_to_resend_writes(data); + filelayout_set_lo_fail(data->lseg); + } else + nfs_restart_rpc(task, data->ds_clp); + return -EAGAIN; + } + + return 0; +} + static void filelayout_write_prepare(struct rpc_task *task, void *data) { struct nfs_write_data *wdata = (struct nfs_write_data *)data; @@ -240,6 +271,16 @@ static void filelayout_write_release(void *data) wdata->mds_ops->rpc_release(data); } +static void filelayout_commit_release(void *data) +{ + struct nfs_write_data *wdata = (struct nfs_write_data *)data; + + nfs_commit_release_pages(wdata); + if (atomic_dec_and_test(&NFS_I(wdata->inode)->commits_outstanding)) + nfs_commit_clear_lock(NFS_I(wdata->inode)); + nfs_commitdata_release(wdata); +} + struct rpc_call_ops filelayout_read_call_ops = { .rpc_call_prepare = filelayout_read_prepare, .rpc_call_done = filelayout_read_call_done, @@ -252,6 +293,12 @@ struct rpc_call_ops filelayout_write_call_ops = { .rpc_release = filelayout_write_release, }; +struct rpc_call_ops filelayout_commit_call_ops = { + .rpc_call_prepare = filelayout_write_prepare, + .rpc_call_done = filelayout_write_call_done, + .rpc_release = filelayout_commit_release, +}; + static enum pnfs_try_status filelayout_read_pagelist(struct nfs_read_data *data) { @@ -574,6 +621,191 @@ filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, return (p_stripe == r_stripe); } +static bool filelayout_mark_pnfs_commit(struct pnfs_layout_segment *lseg) +{ + return !FILELAYOUT_LSEG(lseg)->commit_through_mds; +} + +static u32 select_bucket_index(struct nfs4_filelayout_segment *fl, u32 j) +{ + if (fl->stripe_type == STRIPE_SPARSE) + return nfs4_fl_calc_ds_index(&fl->generic_hdr, j); + else + return j; +} + +struct list_head *filelayout_choose_commit_list(struct nfs_page *req) +{ + struct pnfs_layout_segment *lseg = req->wb_commit_lseg; + struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg); + u32 i, j; + struct list_head *list; + + /* Note that we are calling nfs4_fl_calc_j_index on each page + * that ends up being committed to a data server. An attractive + * alternative is to add a field to nfs_write_data and nfs_page + * to store the value calculated in filelayout_write_pagelist + * and just use that here. + */ + j = nfs4_fl_calc_j_index(lseg, + (loff_t)req->wb_index << PAGE_CACHE_SHIFT); + i = select_bucket_index(fl, j); + list = &fl->commit_buckets[i]; + if (list_empty(list)) { + /* Non-empty buckets hold a reference on the lseg */ + get_lseg(lseg); + } + return list; +} + +static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i) +{ + struct nfs4_filelayout_segment *flseg = FILELAYOUT_LSEG(lseg); + + if (flseg->stripe_type == STRIPE_SPARSE) + return i; + else + return nfs4_fl_calc_ds_index(lseg, i); +} + +static struct nfs_fh * +select_ds_fh_from_commit(struct pnfs_layout_segment *lseg, u32 i) +{ + struct nfs4_filelayout_segment *flseg = FILELAYOUT_LSEG(lseg); + + if (flseg->stripe_type == STRIPE_SPARSE) { + if (flseg->num_fh == 1) + i = 0; + else if (flseg->num_fh == 0) + /* Use the MDS OPEN fh set in nfs_read_rpcsetup */ + return NULL; + } + return flseg->fh_array[i]; +} + +static int filelayout_initiate_commit(struct nfs_write_data *data, int how) +{ + struct pnfs_layout_segment *lseg = data->lseg; + struct nfs4_pnfs_ds *ds; + u32 idx; + struct nfs_fh *fh; + + idx = calc_ds_index_from_commit(lseg, data->ds_commit_index); + ds = nfs4_fl_prepare_ds(lseg, idx); + if (!ds) { + printk(KERN_ERR "%s: prepare_ds failed, use MDS\n", __func__); + set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags); + set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags); + prepare_to_resend_writes(data); + data->mds_ops->rpc_release(data); + return -EAGAIN; + } + dprintk("%s ino %lu, how %d\n", __func__, data->inode->i_ino, how); + data->write_done_cb = filelayout_commit_done_cb; + data->ds_clp = ds->ds_clp; + fh = select_ds_fh_from_commit(lseg, data->ds_commit_index); + if (fh) + data->args.fh = fh; + return nfs_initiate_commit(data, ds->ds_clp->cl_rpcclient, + &filelayout_commit_call_ops, how); +} + +/* + * This is only useful while we are using whole file layouts. + */ +static struct pnfs_layout_segment *find_only_write_lseg(struct inode *inode) +{ + struct pnfs_layout_segment *lseg, *rv = NULL; + + spin_lock(&inode->i_lock); + list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list) + if (lseg->pls_range.iomode == IOMODE_RW) + rv = get_lseg(lseg); + spin_unlock(&inode->i_lock); + return rv; +} + +static int alloc_ds_commits(struct inode *inode, struct list_head *list) +{ + struct pnfs_layout_segment *lseg; + struct nfs4_filelayout_segment *fl; + struct nfs_write_data *data; + int i, j; + + /* Won't need this when non-whole file layout segments are supported + * instead we will use a pnfs_layout_hdr structure */ + lseg = find_only_write_lseg(inode); + if (!lseg) + return 0; + fl = FILELAYOUT_LSEG(lseg); + for (i = 0; i < fl->number_of_buckets; i++) { + if (list_empty(&fl->commit_buckets[i])) + continue; + data = nfs_commitdata_alloc(); + if (!data) + goto out_bad; + data->ds_commit_index = i; + data->lseg = lseg; + list_add(&data->pages, list); + } + put_lseg(lseg); + return 0; + +out_bad: + for (j = i; j < fl->number_of_buckets; j++) { + if (list_empty(&fl->commit_buckets[i])) + continue; + nfs_retry_commit(&fl->commit_buckets[i], lseg); + put_lseg(lseg); /* associated with emptying bucket */ + } + put_lseg(lseg); + /* Caller will clean up entries put on list */ + return -ENOMEM; +} + +/* This follows nfs_commit_list pretty closely */ +static int +filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages, + int how) +{ + struct nfs_write_data *data, *tmp; + LIST_HEAD(list); + + if (!list_empty(mds_pages)) { + data = nfs_commitdata_alloc(); + if (!data) + goto out_bad; + data->lseg = NULL; + list_add(&data->pages, &list); + } + + if (alloc_ds_commits(inode, &list)) + goto out_bad; + + list_for_each_entry_safe(data, tmp, &list, pages) { + list_del_init(&data->pages); + atomic_inc(&NFS_I(inode)->commits_outstanding); + if (!data->lseg) { + nfs_init_commit(data, mds_pages, NULL); + nfs_initiate_commit(data, NFS_CLIENT(inode), + data->mds_ops, how); + } else { + nfs_init_commit(data, &FILELAYOUT_LSEG(data->lseg)->commit_buckets[data->ds_commit_index], data->lseg); + filelayout_initiate_commit(data, how); + } + } + return 0; + out_bad: + list_for_each_entry_safe(data, tmp, &list, pages) { + nfs_retry_commit(&data->pages, data->lseg); + list_del_init(&data->pages); + nfs_commit_free(data); + } + nfs_retry_commit(mds_pages, NULL); + nfs_commit_clear_lock(NFS_I(inode)); + return -ENOMEM; +} + static struct pnfs_layoutdriver_type filelayout_type = { .id = LAYOUT_NFSV4_1_FILES, .name = "LAYOUT_NFSV4_1_FILES", @@ -581,6 +813,9 @@ static struct pnfs_layoutdriver_type filelayout_type = { .alloc_lseg = filelayout_alloc_lseg, .free_lseg = filelayout_free_lseg, .pg_test = filelayout_pg_test, + .mark_pnfs_commit = filelayout_mark_pnfs_commit, + .choose_commit_list = filelayout_choose_commit_list, + .commit_pagelist = filelayout_commit_pagelist, .read_pagelist = filelayout_read_pagelist, .write_pagelist = filelayout_write_pagelist, }; diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index f38813a0a295..c67565965f2a 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -259,6 +259,7 @@ put_lseg(struct pnfs_layout_segment *lseg) pnfs_free_lseg_list(&free_me); } } +EXPORT_SYMBOL_GPL(put_lseg); static bool should_free_lseg(u32 lseg_iomode, u32 recall_iomode) diff --git a/fs/nfs/write.c b/fs/nfs/write.c index cae5d160d835..e7aeda0663c5 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -59,6 +59,7 @@ struct nfs_write_data *nfs_commitdata_alloc(void) } return p; } +EXPORT_SYMBOL_GPL(nfs_commitdata_alloc); void nfs_commit_free(struct nfs_write_data *p) { @@ -66,6 +67,7 @@ void nfs_commit_free(struct nfs_write_data *p) kfree(p->pagevec); mempool_free(p, nfs_commit_mempool); } +EXPORT_SYMBOL_GPL(nfs_commit_free); struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount) { @@ -1283,15 +1285,15 @@ static int nfs_commit_set_lock(struct nfs_inode *nfsi, int may_wait) return (ret < 0) ? ret : 1; } -static void nfs_commit_clear_lock(struct nfs_inode *nfsi) +void nfs_commit_clear_lock(struct nfs_inode *nfsi) { clear_bit(NFS_INO_COMMIT, &nfsi->flags); smp_mb__after_clear_bit(); wake_up_bit(&nfsi->flags, NFS_INO_COMMIT); } +EXPORT_SYMBOL_GPL(nfs_commit_clear_lock); - -static void nfs_commitdata_release(void *data) +void nfs_commitdata_release(void *data) { struct nfs_write_data *wdata = data; @@ -1299,8 +1301,9 @@ static void nfs_commitdata_release(void *data) put_nfs_open_context(wdata->args.context); nfs_commit_free(wdata); } +EXPORT_SYMBOL_GPL(nfs_commitdata_release); -static int nfs_initiate_commit(struct nfs_write_data *data, struct rpc_clnt *clnt, +int nfs_initiate_commit(struct nfs_write_data *data, struct rpc_clnt *clnt, const struct rpc_call_ops *call_ops, int how) { @@ -1334,11 +1337,12 @@ static int nfs_initiate_commit(struct nfs_write_data *data, struct rpc_clnt *cln rpc_put_task(task); return 0; } +EXPORT_SYMBOL_GPL(nfs_initiate_commit); /* * Set up the argument/result storage required for the RPC call. */ -static void nfs_init_commit(struct nfs_write_data *data, +void nfs_init_commit(struct nfs_write_data *data, struct list_head *head, struct pnfs_layout_segment *lseg) { @@ -1365,8 +1369,9 @@ static void nfs_init_commit(struct nfs_write_data *data, data->res.verf = &data->verf; nfs_fattr_init(&data->fattr); } +EXPORT_SYMBOL_GPL(nfs_init_commit); -static void nfs_retry_commit(struct list_head *page_list, +void nfs_retry_commit(struct list_head *page_list, struct pnfs_layout_segment *lseg) { struct nfs_page *req; @@ -1381,6 +1386,7 @@ static void nfs_retry_commit(struct list_head *page_list, nfs_clear_page_tag_locked(req); } } +EXPORT_SYMBOL_GPL(nfs_retry_commit); /* * Commit dirty pages @@ -1419,7 +1425,7 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata) return; } -static void nfs_commit_release_pages(struct nfs_write_data *data) +void nfs_commit_release_pages(struct nfs_write_data *data) { struct nfs_page *req; int status = data->task.tk_status; @@ -1456,6 +1462,7 @@ static void nfs_commit_release_pages(struct nfs_write_data *data) nfs_clear_page_tag_locked(req); } } +EXPORT_SYMBOL_GPL(nfs_commit_release_pages); static void nfs_commit_release(void *calldata) { diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index eddda6ce7c42..807e07c86b26 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -198,6 +198,7 @@ struct nfs_inode { /* pNFS layout information */ struct pnfs_layout_hdr *layout; + atomic_t commits_outstanding; #endif /* CONFIG_NFS_V4*/ #ifdef CONFIG_NFS_FSCACHE struct fscache_cookie *fscache; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 2c2c67d2eb42..ac0c0e51786e 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1040,6 +1040,7 @@ struct nfs_write_data { struct nfs_writeres res; /* result struct */ struct pnfs_layout_segment *lseg; struct nfs_client *ds_clp; /* pNFS data server */ + int ds_commit_index; const struct rpc_call_ops *mds_ops; int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data); #ifdef CONFIG_NFS_V4 -- cgit v1.2.3 From 863a3c6c686d5773f7192a4818769e15db12ce08 Mon Sep 17 00:00:00 2001 From: Andy Adamson <andros@netapp.com> Date: Wed, 23 Mar 2011 13:27:54 +0000 Subject: NFSv4.1: layoutcommit The filelayout driver sends LAYOUTCOMMIT only when COMMIT goes to the data server (as opposed to the MDS) and the data server WRITE is not NFS_FILE_SYNC. Only whole file layout support means that there is only one IOMODE_RW layout segment. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Mingyang Guo <guomingyang@nrchpc.ac.cn> Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn> Signed-off-by: Zhang Jingwang <zhangjingwang@nrchpc.ac.cn> Tested-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/file.c | 3 ++ fs/nfs/nfs4_fs.h | 2 + fs/nfs/nfs4filelayout.c | 18 +++++++ fs/nfs/nfs4proc.c | 94 +++++++++++++++++++++++++++++++++++ fs/nfs/nfs4xdr.c | 129 ++++++++++++++++++++++++++++++++++++++++++++++++ fs/nfs/pnfs.c | 94 +++++++++++++++++++++++++++++++++++ fs/nfs/pnfs.h | 9 +++- fs/nfs/write.c | 15 +++++- include/linux/nfs4.h | 1 + include/linux/nfs_fs.h | 1 + include/linux/nfs_xdr.h | 23 +++++++++ 11 files changed, 387 insertions(+), 2 deletions(-) diff --git a/fs/nfs/file.c b/fs/nfs/file.c index d85a534b15cd..85cb95de5df5 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -326,6 +326,9 @@ nfs_file_fsync(struct file *file, int datasync) ret = xchg(&ctx->error, 0); if (!ret && status < 0) ret = status; + if (!ret && !datasync) + /* application has asked for meta-data sync */ + ret = pnfs_layoutcommit_inode(inode, 1); return ret; } diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index c64be1cff080..1e612d159b71 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -262,6 +262,8 @@ extern int nfs4_proc_destroy_session(struct nfs4_session *); extern int nfs4_init_session(struct nfs_server *server); extern int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo); +extern int nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, + int sync); static inline bool is_ds_only_client(struct nfs_client *clp) diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 97e75a22af72..fc1a0e9c1270 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -153,6 +153,23 @@ static int filelayout_read_done_cb(struct rpc_task *task, return 0; } +/* + * We reference the rpc_cred of the first WRITE that triggers the need for + * a LAYOUTCOMMIT, and use it to send the layoutcommit compound. + * rfc5661 is not clear about which credential should be used. + */ +static void +filelayout_set_layoutcommit(struct nfs_write_data *wdata) +{ + if (FILELAYOUT_LSEG(wdata->lseg)->commit_through_mds || + wdata->res.verf->committed == NFS_FILE_SYNC) + return; + + pnfs_set_layoutcommit(wdata); + dprintk("%s ionde %lu pls_end_pos %lu\n", __func__, wdata->inode->i_ino, + (unsigned long) wdata->lseg->pls_end_pos); +} + /* * Call ops for the async read/write cases * In the case of dense layouts, the offset needs to be reset to its @@ -210,6 +227,7 @@ static int filelayout_write_done_cb(struct rpc_task *task, return -EAGAIN; } + filelayout_set_layoutcommit(data); return 0; } diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 5d61cccc8d4d..6f2f40239d10 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5616,6 +5616,100 @@ int nfs4_proc_getdeviceinfo(struct nfs_server *server, struct pnfs_device *pdev) } EXPORT_SYMBOL_GPL(nfs4_proc_getdeviceinfo); +static void nfs4_layoutcommit_prepare(struct rpc_task *task, void *calldata) +{ + struct nfs4_layoutcommit_data *data = calldata; + struct nfs_server *server = NFS_SERVER(data->args.inode); + + if (nfs4_setup_sequence(server, &data->args.seq_args, + &data->res.seq_res, 1, task)) + return; + rpc_call_start(task); +} + +static void +nfs4_layoutcommit_done(struct rpc_task *task, void *calldata) +{ + struct nfs4_layoutcommit_data *data = calldata; + struct nfs_server *server = NFS_SERVER(data->args.inode); + + if (!nfs4_sequence_done(task, &data->res.seq_res)) + return; + + switch (task->tk_status) { /* Just ignore these failures */ + case NFS4ERR_DELEG_REVOKED: /* layout was recalled */ + case NFS4ERR_BADIOMODE: /* no IOMODE_RW layout for range */ + case NFS4ERR_BADLAYOUT: /* no layout */ + case NFS4ERR_GRACE: /* loca_recalim always false */ + task->tk_status = 0; + } + + if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) { + nfs_restart_rpc(task, server->nfs_client); + return; + } + + if (task->tk_status == 0) + nfs_post_op_update_inode_force_wcc(data->args.inode, + data->res.fattr); +} + +static void nfs4_layoutcommit_release(void *calldata) +{ + struct nfs4_layoutcommit_data *data = calldata; + + /* Matched by references in pnfs_set_layoutcommit */ + put_lseg(data->lseg); + put_rpccred(data->cred); + kfree(data); +} + +static const struct rpc_call_ops nfs4_layoutcommit_ops = { + .rpc_call_prepare = nfs4_layoutcommit_prepare, + .rpc_call_done = nfs4_layoutcommit_done, + .rpc_release = nfs4_layoutcommit_release, +}; + +int +nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, int sync) +{ + struct rpc_message msg = { + .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTCOMMIT], + .rpc_argp = &data->args, + .rpc_resp = &data->res, + .rpc_cred = data->cred, + }; + struct rpc_task_setup task_setup_data = { + .task = &data->task, + .rpc_client = NFS_CLIENT(data->args.inode), + .rpc_message = &msg, + .callback_ops = &nfs4_layoutcommit_ops, + .callback_data = data, + .flags = RPC_TASK_ASYNC, + }; + struct rpc_task *task; + int status = 0; + + dprintk("NFS: %4d initiating layoutcommit call. sync %d " + "lbw: %llu inode %lu\n", + data->task.tk_pid, sync, + data->args.lastbytewritten, + data->args.inode->i_ino); + + task = rpc_run_task(&task_setup_data); + if (IS_ERR(task)) + return PTR_ERR(task); + if (!sync) + goto out; + status = nfs4_wait_for_completion_rpc_task(task); + if (status != 0) + goto out; + status = task->tk_status; +out: + dprintk("%s: status %d\n", __func__, status); + rpc_put_task(task); + return status; +} #endif /* CONFIG_NFS_V4_1 */ struct nfs4_state_recovery_ops nfs40_reboot_recovery_ops = { diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 07cdf925c524..207d399c8dee 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -324,6 +324,18 @@ static int nfs4_stat_to_errno(int); #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ decode_stateid_maxsz + \ XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) +#define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ + 2 /* offset */ + \ + 2 /* length */ + \ + 1 /* reclaim */ + \ + encode_stateid_maxsz + \ + 1 /* new offset (true) */ + \ + 2 /* last byte written */ + \ + 1 /* nt_timechanged (false) */ + \ + 1 /* layoutupdate4 layout type */ + \ + 1 /* NULL filelayout layoutupdate4 payload */) +#define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) + #else /* CONFIG_NFS_V4_1 */ #define encode_sequence_maxsz 0 #define decode_sequence_maxsz 0 @@ -727,6 +739,17 @@ static int nfs4_stat_to_errno(int); decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_layoutget_maxsz) +#define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz +\ + encode_putfh_maxsz + \ + encode_layoutcommit_maxsz + \ + encode_getattr_maxsz) +#define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ + decode_putfh_maxsz + \ + decode_layoutcommit_maxsz + \ + decode_getattr_maxsz) + const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + compound_encode_hdr_maxsz + @@ -1816,6 +1839,34 @@ encode_layoutget(struct xdr_stream *xdr, hdr->nops++; hdr->replen += decode_layoutget_maxsz; } + +static int +encode_layoutcommit(struct xdr_stream *xdr, + const struct nfs4_layoutcommit_args *args, + struct compound_hdr *hdr) +{ + __be32 *p; + + dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, + NFS_SERVER(args->inode)->pnfs_curr_ld->id); + + p = reserve_space(xdr, 48 + NFS4_STATEID_SIZE); + *p++ = cpu_to_be32(OP_LAYOUTCOMMIT); + /* Only whole file layouts */ + p = xdr_encode_hyper(p, 0); /* offset */ + p = xdr_encode_hyper(p, NFS4_MAX_UINT64); /* length */ + *p++ = cpu_to_be32(0); /* reclaim */ + p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE); + *p++ = cpu_to_be32(1); /* newoffset = TRUE */ + p = xdr_encode_hyper(p, args->lastbytewritten); + *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ + *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ + *p++ = cpu_to_be32(0); /* no file layout payload */ + + hdr->nops++; + hdr->replen += decode_layoutcommit_maxsz; + return 0; +} #endif /* CONFIG_NFS_V4_1 */ /* @@ -2607,6 +2658,26 @@ static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, encode_layoutget(xdr, args, &hdr); encode_nops(&hdr); } + +/* + * Encode LAYOUTCOMMIT request + */ +static int nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, + struct xdr_stream *xdr, + struct nfs4_layoutcommit_args *args) +{ + struct compound_hdr hdr = { + .minorversion = nfs4_xdr_minorversion(&args->seq_args), + }; + + encode_compound_hdr(xdr, req, &hdr); + encode_sequence(xdr, &args->seq_args, &hdr); + encode_putfh(xdr, NFS_FH(args->inode), &hdr); + encode_layoutcommit(xdr, args, &hdr); + encode_getfattr(xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; +} #endif /* CONFIG_NFS_V4_1 */ static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) @@ -5007,6 +5078,35 @@ out_overflow: print_overflow_msg(__func__, xdr); return -EIO; } + +static int decode_layoutcommit(struct xdr_stream *xdr, + struct rpc_rqst *req, + struct nfs4_layoutcommit_res *res) +{ + __be32 *p; + __u32 sizechanged; + int status; + + status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); + if (status) + return status; + + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + sizechanged = be32_to_cpup(p); + + if (sizechanged) { + /* throw away new size */ + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + } + return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; +} #endif /* CONFIG_NFS_V4_1 */ /* @@ -6068,6 +6168,34 @@ static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, out: return status; } + +/* + * Decode LAYOUTCOMMIT response + */ +static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, + struct xdr_stream *xdr, + struct nfs4_layoutcommit_res *res) +{ + struct compound_hdr hdr; + int status; + + status = decode_compound_hdr(xdr, &hdr); + if (status) + goto out; + status = decode_sequence(xdr, &res->seq_res, rqstp); + if (status) + goto out; + status = decode_putfh(xdr); + if (status) + goto out; + status = decode_layoutcommit(xdr, rqstp, res); + if (status) + goto out; + decode_getfattr(xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); +out: + return status; +} #endif /* CONFIG_NFS_V4_1 */ /** @@ -6269,6 +6397,7 @@ struct rpc_procinfo nfs4_procedures[] = { PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), PROC(LAYOUTGET, enc_layoutget, dec_layoutget), + PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), #endif /* CONFIG_NFS_V4_1 */ }; diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index c67565965f2a..2a08ca0dddc1 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -946,3 +946,97 @@ pnfs_try_to_read_data(struct nfs_read_data *rdata, dprintk("%s End (trypnfs:%d)\n", __func__, trypnfs); return trypnfs; } + +/* + * Currently there is only one (whole file) write lseg. + */ +static struct pnfs_layout_segment *pnfs_list_write_lseg(struct inode *inode) +{ + struct pnfs_layout_segment *lseg, *rv = NULL; + + list_for_each_entry(lseg, &NFS_I(inode)->layout->plh_segs, pls_list) + if (lseg->pls_range.iomode == IOMODE_RW) + rv = lseg; + return rv; +} + +void +pnfs_set_layoutcommit(struct nfs_write_data *wdata) +{ + struct nfs_inode *nfsi = NFS_I(wdata->inode); + loff_t end_pos = wdata->args.offset + wdata->res.count; + + spin_lock(&nfsi->vfs_inode.i_lock); + if (!test_and_set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) { + /* references matched in nfs4_layoutcommit_release */ + get_lseg(wdata->lseg); + wdata->lseg->pls_lc_cred = + get_rpccred(wdata->args.context->state->owner->so_cred); + mark_inode_dirty_sync(wdata->inode); + dprintk("%s: Set layoutcommit for inode %lu ", + __func__, wdata->inode->i_ino); + } + if (end_pos > wdata->lseg->pls_end_pos) + wdata->lseg->pls_end_pos = end_pos; + spin_unlock(&nfsi->vfs_inode.i_lock); +} +EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit); + +int +pnfs_layoutcommit_inode(struct inode *inode, int sync) +{ + struct nfs4_layoutcommit_data *data; + struct nfs_inode *nfsi = NFS_I(inode); + struct pnfs_layout_segment *lseg; + struct rpc_cred *cred; + loff_t end_pos; + int status = 0; + + dprintk("--> %s inode %lu\n", __func__, inode->i_ino); + + /* Note kzalloc ensures data->res.seq_res.sr_slot == NULL */ + data = kzalloc(sizeof(*data), GFP_NOFS); + spin_lock(&inode->i_lock); + + if (!test_and_clear_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) { + spin_unlock(&inode->i_lock); + kfree(data); + goto out; + } + /* + * Currently only one (whole file) write lseg which is referenced + * in pnfs_set_layoutcommit and will be found. + */ + lseg = pnfs_list_write_lseg(inode); + + end_pos = lseg->pls_end_pos; + cred = lseg->pls_lc_cred; + lseg->pls_end_pos = 0; + lseg->pls_lc_cred = NULL; + + if (!data) { + put_lseg(lseg); + spin_unlock(&inode->i_lock); + put_rpccred(cred); + status = -ENOMEM; + goto out; + } else { + memcpy(&data->args.stateid.data, nfsi->layout->plh_stateid.data, + sizeof(nfsi->layout->plh_stateid.data)); + } + spin_unlock(&inode->i_lock); + + data->args.inode = inode; + data->lseg = lseg; + data->cred = cred; + nfs_fattr_init(&data->fattr); + data->args.bitmask = NFS_SERVER(inode)->cache_consistency_bitmask; + data->res.fattr = &data->fattr; + data->args.lastbytewritten = end_pos - 1; + data->res.server = NFS_SERVER(inode); + + status = nfs4_proc_layoutcommit(data, sync); +out: + dprintk("<-- %s status %d\n", __func__, status); + return status; +} diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 5370f1b9aa43..0806c77862b6 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -43,6 +43,8 @@ struct pnfs_layout_segment { atomic_t pls_refcount; unsigned long pls_flags; struct pnfs_layout_hdr *pls_layout; + struct rpc_cred *pls_lc_cred; /* LAYOUTCOMMIT credential */ + loff_t pls_end_pos; /* LAYOUTCOMMIT write end */ }; enum pnfs_try_status { @@ -152,7 +154,8 @@ bool pnfs_roc(struct inode *ino); void pnfs_roc_release(struct inode *ino); void pnfs_roc_set_barrier(struct inode *ino, u32 barrier); bool pnfs_roc_drain(struct inode *ino, u32 *barrier); - +void pnfs_set_layoutcommit(struct nfs_write_data *wdata); +int pnfs_layoutcommit_inode(struct inode *inode, int sync); static inline int lo_fail_bit(u32 iomode) { @@ -325,6 +328,10 @@ static inline void pnfs_clear_request_commit(struct nfs_page *req) { } +static inline int pnfs_layoutcommit_inode(struct inode *inode, int sync) +{ + return 0; +} #endif /* CONFIG_NFS_V4_1 */ #endif /* FS_NFS_PNFS_H */ diff --git a/fs/nfs/write.c b/fs/nfs/write.c index e7aeda0663c5..a03c11f9081e 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1562,7 +1562,20 @@ static int nfs_commit_unstable_pages(struct inode *inode, struct writeback_contr int nfs_write_inode(struct inode *inode, struct writeback_control *wbc) { - return nfs_commit_unstable_pages(inode, wbc); + int ret; + + ret = nfs_commit_unstable_pages(inode, wbc); + if (ret >= 0 && test_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(inode)->flags)) { + int status, sync = wbc->sync_mode; + + if (wbc->nonblocking || wbc->for_background) + sync = 0; + + status = pnfs_layoutcommit_inode(inode, sync); + if (status < 0) + return status; + } + return ret; } /* diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index 134716e5e350..bf22cfaaeee5 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -560,6 +560,7 @@ enum { NFSPROC4_CLNT_RECLAIM_COMPLETE, NFSPROC4_CLNT_LAYOUTGET, NFSPROC4_CLNT_GETDEVICEINFO, + NFSPROC4_CLNT_LAYOUTCOMMIT, }; /* nfs41 types */ diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 807e07c86b26..1b93b9c60e55 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -228,6 +228,7 @@ struct nfs_inode { #define NFS_INO_FSCACHE_LOCK (6) /* FS-Cache cookie management lock */ #define NFS_INO_COMMIT (7) /* inode is committing unstable writes */ #define NFS_INO_PNFS_COMMIT (8) /* use pnfs code for commit */ +#define NFS_INO_LAYOUTCOMMIT (9) /* layoutcommit required */ static inline struct nfs_inode *NFS_I(const struct inode *inode) { diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index ac0c0e51786e..84f3585c5728 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -236,6 +236,29 @@ struct nfs4_getdeviceinfo_res { struct nfs4_sequence_res seq_res; }; +struct nfs4_layoutcommit_args { + nfs4_stateid stateid; + __u64 lastbytewritten; + struct inode *inode; + const u32 *bitmask; + struct nfs4_sequence_args seq_args; +}; + +struct nfs4_layoutcommit_res { + struct nfs_fattr *fattr; + const struct nfs_server *server; + struct nfs4_sequence_res seq_res; +}; + +struct nfs4_layoutcommit_data { + struct rpc_task task; + struct nfs_fattr fattr; + struct pnfs_layout_segment *lseg; + struct rpc_cred *cred; + struct nfs4_layoutcommit_args args; + struct nfs4_layoutcommit_res res; +}; + /* * Arguments to the open call. */ -- cgit v1.2.3 From cccb4d063b263ac0713ab27d98460fda3b4f83ff Mon Sep 17 00:00:00 2001 From: Fred Isaman <iisaman@netapp.com> Date: Wed, 23 Mar 2011 13:27:55 +0000 Subject: NFSv4.1 remove temp code that prevented ds commits Now that all the infrastructure is in place, we will do the right thing if we remove this special casing. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4filelayout.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index fc1a0e9c1270..ffb54a082f3a 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -385,10 +385,6 @@ filelayout_write_pagelist(struct nfs_write_data *data, int sync) data->inode->i_ino, sync, (size_t) data->args.count, offset, ntohl(ds->ds_ip_addr), ntohs(ds->ds_port)); - /* We can't handle commit to ds yet */ - if (!FILELAYOUT_LSEG(lseg)->commit_through_mds) - data->args.stable = NFS_FILE_SYNC; - data->write_done_cb = filelayout_write_done_cb; data->ds_clp = ds->ds_clp; fh = nfs4_fl_select_ds_fh(lseg, j); -- cgit v1.2.3 From cda6587c21a887254c8ed4b58da8fcc4040ab557 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka <sgruszka@redhat.com> Date: Wed, 23 Mar 2011 02:44:30 +0000 Subject: myri10ge: fix rmmod crash Rmmod myri10ge crash at free_netdev() -> netif_napi_del(), because napi structures are already deallocated. To fix call netif_napi_del() before kfree() at myri10ge_free_slices(). Cc: stable@kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/myri10ge/myri10ge.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c index a7f2eed9a08a..1f4e8680a96a 100644 --- a/drivers/net/myri10ge/myri10ge.c +++ b/drivers/net/myri10ge/myri10ge.c @@ -3645,6 +3645,7 @@ static void myri10ge_free_slices(struct myri10ge_priv *mgp) dma_free_coherent(&pdev->dev, bytes, ss->fw_stats, ss->fw_stats_bus); ss->fw_stats = NULL; + netif_napi_del(&ss->napi); } } kfree(mgp->ss); -- cgit v1.2.3 From 35d48903e9781975e823b359ee85c257c9ff5c1c Mon Sep 17 00:00:00 2001 From: Jiri Pirko <jpirko@redhat.com> Date: Tue, 22 Mar 2011 02:38:12 +0000 Subject: bonding: fix rx_handler locking MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This prevents possible race between bond_enslave and bond_handle_frame as reported by Nicolas by moving rx_handler register/unregister. slave->bond is added to hold pointer to master bonding sructure. That way dev->master is no longer used in bond_handler_frame. Also, this removes "BUG: scheduling while atomic" message Reported-by: Nicolas de Pesloüan <nicolas.2p.debian@gmail.com> Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Tested-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/bonding/bond_main.c | 56 +++++++++++++++++++++++------------------ drivers/net/bonding/bonding.h | 1 + 2 files changed, 32 insertions(+), 25 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 338bea147c64..16d6fe954695 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1482,21 +1482,16 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb) { struct sk_buff *skb = *pskb; struct slave *slave; - struct net_device *bond_dev; struct bonding *bond; - slave = bond_slave_get_rcu(skb->dev); - bond_dev = ACCESS_ONCE(slave->dev->master); - if (unlikely(!bond_dev)) - return RX_HANDLER_PASS; - skb = skb_share_check(skb, GFP_ATOMIC); if (unlikely(!skb)) return RX_HANDLER_CONSUMED; *pskb = skb; - bond = netdev_priv(bond_dev); + slave = bond_slave_get_rcu(skb->dev); + bond = slave->bond; if (bond->params.arp_interval) slave->dev->last_rx = jiffies; @@ -1505,10 +1500,10 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb) return RX_HANDLER_EXACT; } - skb->dev = bond_dev; + skb->dev = bond->dev; if (bond->params.mode == BOND_MODE_ALB && - bond_dev->priv_flags & IFF_BRIDGE_PORT && + bond->dev->priv_flags & IFF_BRIDGE_PORT && skb->pkt_type == PACKET_HOST) { if (unlikely(skb_cow_head(skb, @@ -1516,7 +1511,7 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb) kfree_skb(skb); return RX_HANDLER_CONSUMED; } - memcpy(eth_hdr(skb)->h_dest, bond_dev->dev_addr, ETH_ALEN); + memcpy(eth_hdr(skb)->h_dest, bond->dev->dev_addr, ETH_ALEN); } return RX_HANDLER_ANOTHER; @@ -1698,20 +1693,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) pr_debug("Error %d calling netdev_set_bond_master\n", res); goto err_restore_mac; } - res = netdev_rx_handler_register(slave_dev, bond_handle_frame, - new_slave); - if (res) { - pr_debug("Error %d calling netdev_rx_handler_register\n", res); - goto err_unset_master; - } /* open the slave since the application closed it */ res = dev_open(slave_dev); if (res) { pr_debug("Opening slave %s failed\n", slave_dev->name); - goto err_unreg_rxhandler; + goto err_unset_master; } + new_slave->bond = bond; new_slave->dev = slave_dev; slave_dev->priv_flags |= IFF_BONDING; @@ -1907,6 +1897,13 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) if (res) goto err_close; + res = netdev_rx_handler_register(slave_dev, bond_handle_frame, + new_slave); + if (res) { + pr_debug("Error %d calling netdev_rx_handler_register\n", res); + goto err_dest_symlinks; + } + pr_info("%s: enslaving %s as a%s interface with a%s link.\n", bond_dev->name, slave_dev->name, bond_is_active_slave(new_slave) ? "n active" : " backup", @@ -1916,13 +1913,12 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) return 0; /* Undo stages on error */ +err_dest_symlinks: + bond_destroy_slave_symlinks(bond_dev, slave_dev); + err_close: dev_close(slave_dev); -err_unreg_rxhandler: - netdev_rx_handler_unregister(slave_dev); - synchronize_net(); - err_unset_master: netdev_set_bond_master(slave_dev, NULL); @@ -1988,6 +1984,14 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev) return -EINVAL; } + /* unregister rx_handler early so bond_handle_frame wouldn't be called + * for this slave anymore. + */ + netdev_rx_handler_unregister(slave_dev); + write_unlock_bh(&bond->lock); + synchronize_net(); + write_lock_bh(&bond->lock); + if (!bond->params.fail_over_mac) { if (!compare_ether_addr(bond_dev->dev_addr, slave->perm_hwaddr) && bond->slave_cnt > 1) @@ -2104,8 +2108,6 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev) netif_addr_unlock_bh(bond_dev); } - netdev_rx_handler_unregister(slave_dev); - synchronize_net(); netdev_set_bond_master(slave_dev, NULL); slave_disable_netpoll(slave); @@ -2186,6 +2188,12 @@ static int bond_release_all(struct net_device *bond_dev) */ write_unlock_bh(&bond->lock); + /* unregister rx_handler early so bond_handle_frame wouldn't + * be called for this slave anymore. + */ + netdev_rx_handler_unregister(slave_dev); + synchronize_net(); + if (bond_is_lb(bond)) { /* must be called only after the slave * has been detached from the list @@ -2217,8 +2225,6 @@ static int bond_release_all(struct net_device *bond_dev) netif_addr_unlock_bh(bond_dev); } - netdev_rx_handler_unregister(slave_dev); - synchronize_net(); netdev_set_bond_master(slave_dev, NULL); slave_disable_netpoll(slave); diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 6b26962fd0ec..90736cb4d975 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -187,6 +187,7 @@ struct slave { struct net_device *dev; /* first - useful for panic debug */ struct slave *next; struct slave *prev; + struct bonding *bond; /* our master */ int delay; unsigned long jiffies; unsigned long last_arp_rx; -- cgit v1.2.3 From 1ddd5049545e0aa1a0ed19bca4d9c9c3ce1ac8a2 Mon Sep 17 00:00:00 2001 From: Bud Brown <bud.brown@redhat.com> Date: Wed, 23 Mar 2011 20:47:11 +0100 Subject: cciss: fix lost command issue Under certain workloads a command may seem to get lost. IOW, the Smart Array thinks all commands have been completed but we still have commands in our completion queue. This may lead to system instability, filesystems going read-only, or even panics depending on the affected filesystem. We add an extra read to force the write to complete. Testing shows this extra read avoids the problem. Signed-off-by: Mike Miller <mike.miller@hp.com> Cc: stable@kernel.org Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/block/cciss.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h index 579f74918493..554bbd907d14 100644 --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h @@ -222,6 +222,7 @@ static void SA5_submit_command( ctlr_info_t *h, CommandList_struct *c) h->ctlr, c->busaddr); #endif /* CCISS_DEBUG */ writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET); + readl(h->vaddr + SA5_REQUEST_PORT_OFFSET); h->commands_outstanding++; if ( h->commands_outstanding > h->max_outstanding) h->max_outstanding = h->commands_outstanding; -- cgit v1.2.3 From 0ba0851714beebb800992e5105a79dc3a4c504b0 Mon Sep 17 00:00:00 2001 From: Tao Ma <boyu.mt@taobao.com> Date: Wed, 23 Mar 2011 15:48:11 -0400 Subject: ext4: fix a BUG in mb_mark_used during trim. In a bs=4096 volume, if we call FITRIM with the following parameter as fstrim_range(start = 102400, len = 134144000, minlen = 10240), we will trigger this BUG_ON: BUG_ON(start + len > (e4b->bd_sb->s_blocksize << 3)); Mar 4 00:55:52 boyu-tm kernel: ------------[ cut here ]------------ Mar 4 00:55:52 boyu-tm kernel: kernel BUG at fs/ext4/mballoc.c:1506! Mar 4 01:21:09 boyu-tm kernel: Code: d4 00 00 00 00 49 89 fe 8b 56 0c 44 8b 7e 04 89 55 c4 48 8b 4f 28 89 d6 44 01 fe 48 63 d6 48 8b 41 18 48 c1 e0 03 48 39 c2 76 04 <0f> 0b eb fe 48 8b 55 b0 8b 47 34 3b 42 08 74 04 0f 0b eb fe 48 Mar 4 01:21:09 boyu-tm kernel: RIP [<ffffffffa053eb42>] mb_mark_used+0x47/0x26c [ext4] Mar 4 01:21:09 boyu-tm kernel: RSP <ffff880121e45c38> Mar 4 01:21:09 boyu-tm kernel: ---[ end trace 9f461696f6a9dcf2 ]--- Fix this bug by doing the accounting correctly. Cc: Lukas Czerner <lczerner@redhat.com> Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> --- fs/ext4/mballoc.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index cdc84953f1d4..a5837a837a8b 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -4870,10 +4870,15 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range) break; } - if (len >= EXT4_BLOCKS_PER_GROUP(sb)) - len -= (EXT4_BLOCKS_PER_GROUP(sb) - first_block); - else + /* + * For all the groups except the last one, last block will + * always be EXT4_BLOCKS_PER_GROUP(sb), so we only need to + * change it for the last group in which case start + + * len < EXT4_BLOCKS_PER_GROUP(sb). + */ + if (first_block + len < EXT4_BLOCKS_PER_GROUP(sb)) last_block = first_block + len; + len -= last_block - first_block; if (e4b.bd_info->bb_free >= minlen) { cnt = ext4_trim_all_free(sb, &e4b, first_block, -- cgit v1.2.3 From 880f57318450dbead6a03f9e31a1468924d6dd88 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker <fweisbec@gmail.com> Date: Wed, 23 Mar 2011 19:29:39 +0100 Subject: perf: Better fit max unprivileged mlock pages for tools needs The maximum kilobytes of locked memory that an unprivileged user can reserve is of 512 kB = 128 pages by default, scaled to the number of onlined CPUs, which fits well with the tools that use 128 data pages by default. However tools actually use 129 pages, because they need one more for the user control page. Thus the default mlock threshold is not sufficient for the default tools needs and we always end up to evaluate the constant mlock rlimit policy, which doesn't have this scaling with the number of online CPUs. Hence, on systems that have more than 16 CPUs, we overlap the rlimit threshold and fail to mmap: $ perf record ls Error: failed to mmap with 1 (Operation not permitted) Just increase the max unprivileged mlock threshold by one page so that it supports well perf tools even after 16 CPUs. Reported-by: Han Pingtian <phan@redhat.com> Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stable <stable@kernel.org> LKML-Reference: <1300904979-5508-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- kernel/perf_event.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 0c714226ae0c..c75925c4d1e2 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -145,7 +145,8 @@ static struct srcu_struct pmus_srcu; */ int sysctl_perf_event_paranoid __read_mostly = 1; -int sysctl_perf_event_mlock __read_mostly = 512; /* 'free' kb per user */ +/* Minimum for 128 pages + 1 for the user control page */ +int sysctl_perf_event_mlock __read_mostly = 516; /* 'free' kb per user */ /* * max perf event sample rate -- cgit v1.2.3 From 88e87be6ba528bd73522ecf0468fe32f1ee199e6 Mon Sep 17 00:00:00 2001 From: Julia Lawall <julia@diku.dk> Date: Tue, 22 Mar 2011 07:15:21 +0000 Subject: drivers/net/ariadne.c: Convert release_resource to release_region/release_mem_region Request_mem_region should be used with release_mem_region, not release_resource. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,E; @@ *x = request_mem_region(...) ... when != release_mem_region(x) when != x = E * release_resource(x); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/ariadne.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/ariadne.c b/drivers/net/ariadne.c index 7ca0eded2561..b7f45cd756a2 100644 --- a/drivers/net/ariadne.c +++ b/drivers/net/ariadne.c @@ -182,14 +182,14 @@ static int __devinit ariadne_init_one(struct zorro_dev *z, return -EBUSY; r2 = request_mem_region(mem_start, ARIADNE_RAM_SIZE, "RAM"); if (!r2) { - release_resource(r1); + release_mem_region(base_addr, sizeof(struct Am79C960)); return -EBUSY; } dev = alloc_etherdev(sizeof(struct ariadne_private)); if (dev == NULL) { - release_resource(r1); - release_resource(r2); + release_mem_region(base_addr, sizeof(struct Am79C960)); + release_mem_region(mem_start, ARIADNE_RAM_SIZE); return -ENOMEM; } @@ -213,8 +213,8 @@ static int __devinit ariadne_init_one(struct zorro_dev *z, err = register_netdev(dev); if (err) { - release_resource(r1); - release_resource(r2); + release_mem_region(base_addr, sizeof(struct Am79C960)); + release_mem_region(mem_start, ARIADNE_RAM_SIZE); free_netdev(dev); return err; } -- cgit v1.2.3 From e6937ee626dee9c66ae820f5cca11efca2933845 Mon Sep 17 00:00:00 2001 From: Julia Lawall <julia@diku.dk> Date: Tue, 22 Mar 2011 07:15:23 +0000 Subject: drivers/net/a2065.c: Convert release_resource to release_region/release_mem_region Request_mem_region should be used with release_mem_region, not release_resource. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,E; @@ *x = request_mem_region(...) ... when != release_mem_region(x) when != x = E * release_resource(x); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/a2065.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/a2065.c b/drivers/net/a2065.c index f142cc21e453..deaa8bc16cf8 100644 --- a/drivers/net/a2065.c +++ b/drivers/net/a2065.c @@ -711,14 +711,14 @@ static int __devinit a2065_init_one(struct zorro_dev *z, return -EBUSY; r2 = request_mem_region(mem_start, A2065_RAM_SIZE, "RAM"); if (!r2) { - release_resource(r1); + release_mem_region(base_addr, sizeof(struct lance_regs)); return -EBUSY; } dev = alloc_etherdev(sizeof(struct lance_private)); if (dev == NULL) { - release_resource(r1); - release_resource(r2); + release_mem_region(base_addr, sizeof(struct lance_regs)); + release_mem_region(mem_start, A2065_RAM_SIZE); return -ENOMEM; } @@ -764,8 +764,8 @@ static int __devinit a2065_init_one(struct zorro_dev *z, err = register_netdev(dev); if (err) { - release_resource(r1); - release_resource(r2); + release_mem_region(base_addr, sizeof(struct lance_regs)); + release_mem_region(mem_start, A2065_RAM_SIZE); free_netdev(dev); return err; } -- cgit v1.2.3 From f3c6ea1b06c71b43f751b36bd99345369fe911af Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rjw@sisk.pl> Date: Wed, 23 Mar 2011 22:15:54 +0100 Subject: x86: Use syscore_ops instead of sysdev classes and sysdevs Some subsystems in the x86 tree need to carry out suspend/resume and shutdown operations with one CPU on-line and interrupts disabled and they define sysdev classes and sysdevs or sysdev drivers for this purpose. This leads to unnecessarily complicated code and excessive memory usage, so switch them to using struct syscore_ops objects for this purpose instead. Generally, there are three categories of subsystems that use sysdevs for implementing PM operations: (1) subsystems whose suspend/resume callbacks ignore their arguments entirely (the majority), (2) subsystems whose suspend/resume callbacks use their struct sys_device argument, but don't really need to do that, because they can be implemented differently in an arguably simpler way (io_apic.c), and (3) subsystems whose suspend/resume callbacks use their struct sys_device argument, but the value of that argument is always the same and could be ignored (microcode_core.c). In all of these cases the subsystems in question may be readily converted to using struct syscore_ops objects for power management and shutdown. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/amd_iommu_init.c | 26 +++-------- arch/x86/kernel/apic/apic.c | 33 ++++---------- arch/x86/kernel/apic/io_apic.c | 97 +++++++++++++++++++--------------------- arch/x86/kernel/cpu/mcheck/mce.c | 21 +++++---- arch/x86/kernel/cpu/mtrr/main.c | 10 ++--- arch/x86/kernel/i8237.c | 30 +++---------- arch/x86/kernel/i8259.c | 33 +++++--------- arch/x86/kernel/microcode_core.c | 34 ++++++-------- arch/x86/kernel/pci-gart_64.c | 32 +++---------- arch/x86/oprofile/nmi_int.c | 44 +++++------------- 10 files changed, 128 insertions(+), 232 deletions(-) diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 6e11c8134158..246d727b65b7 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -21,7 +21,7 @@ #include <linux/acpi.h> #include <linux/list.h> #include <linux/slab.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/interrupt.h> #include <linux/msi.h> #include <asm/pci-direct.h> @@ -1260,7 +1260,7 @@ static void disable_iommus(void) * disable suspend until real resume implemented */ -static int amd_iommu_resume(struct sys_device *dev) +static void amd_iommu_resume(void) { struct amd_iommu *iommu; @@ -1276,11 +1276,9 @@ static int amd_iommu_resume(struct sys_device *dev) */ amd_iommu_flush_all_devices(); amd_iommu_flush_all_domains(); - - return 0; } -static int amd_iommu_suspend(struct sys_device *dev, pm_message_t state) +static int amd_iommu_suspend(void) { /* disable IOMMUs to go out of the way for BIOS */ disable_iommus(); @@ -1288,17 +1286,11 @@ static int amd_iommu_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static struct sysdev_class amd_iommu_sysdev_class = { - .name = "amd_iommu", +static struct syscore_ops amd_iommu_syscore_ops = { .suspend = amd_iommu_suspend, .resume = amd_iommu_resume, }; -static struct sys_device device_amd_iommu = { - .id = 0, - .cls = &amd_iommu_sysdev_class, -}; - /* * This is the core init function for AMD IOMMU hardware in the system. * This function is called from the generic x86 DMA layer initialization @@ -1415,14 +1407,6 @@ static int __init amd_iommu_init(void) goto free; } - ret = sysdev_class_register(&amd_iommu_sysdev_class); - if (ret) - goto free; - - ret = sysdev_register(&device_amd_iommu); - if (ret) - goto free; - ret = amd_iommu_init_devices(); if (ret) goto free; @@ -1441,6 +1425,8 @@ static int __init amd_iommu_init(void) amd_iommu_init_notifier(); + register_syscore_ops(&amd_iommu_syscore_ops); + if (iommu_pass_through) goto out; diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 966673f44141..fabf01eff771 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -24,7 +24,7 @@ #include <linux/ftrace.h> #include <linux/ioport.h> #include <linux/module.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/delay.h> #include <linux/timex.h> #include <linux/dmar.h> @@ -2046,7 +2046,7 @@ static struct { unsigned int apic_thmr; } apic_pm_state; -static int lapic_suspend(struct sys_device *dev, pm_message_t state) +static int lapic_suspend(void) { unsigned long flags; int maxlvt; @@ -2084,23 +2084,21 @@ static int lapic_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int lapic_resume(struct sys_device *dev) +static void lapic_resume(void) { unsigned int l, h; unsigned long flags; - int maxlvt; - int ret = 0; + int maxlvt, ret; struct IO_APIC_route_entry **ioapic_entries = NULL; if (!apic_pm_state.active) - return 0; + return; local_irq_save(flags); if (intr_remapping_enabled) { ioapic_entries = alloc_ioapic_entries(); if (!ioapic_entries) { WARN(1, "Alloc ioapic_entries in lapic resume failed."); - ret = -ENOMEM; goto restore; } @@ -2162,8 +2160,6 @@ static int lapic_resume(struct sys_device *dev) } restore: local_irq_restore(flags); - - return ret; } /* @@ -2171,17 +2167,11 @@ restore: * are needed on every CPU up until machine_halt/restart/poweroff. */ -static struct sysdev_class lapic_sysclass = { - .name = "lapic", +static struct syscore_ops lapic_syscore_ops = { .resume = lapic_resume, .suspend = lapic_suspend, }; -static struct sys_device device_lapic = { - .id = 0, - .cls = &lapic_sysclass, -}; - static void __cpuinit apic_pm_activate(void) { apic_pm_state.active = 1; @@ -2189,16 +2179,11 @@ static void __cpuinit apic_pm_activate(void) static int __init init_lapic_sysfs(void) { - int error; - - if (!cpu_has_apic) - return 0; /* XXX: remove suspend/resume procs if !apic_pm_state.active? */ + if (cpu_has_apic) + register_syscore_ops(&lapic_syscore_ops); - error = sysdev_class_register(&lapic_sysclass); - if (!error) - error = sysdev_register(&device_lapic); - return error; + return 0; } /* local apic needs to resume before other devices access its registers. */ diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 180ca240e03c..68df09bba92e 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -30,7 +30,7 @@ #include <linux/compiler.h> #include <linux/acpi.h> #include <linux/module.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/msi.h> #include <linux/htirq.h> #include <linux/freezer.h> @@ -2918,89 +2918,84 @@ static int __init io_apic_bug_finalize(void) late_initcall(io_apic_bug_finalize); -struct sysfs_ioapic_data { - struct sys_device dev; - struct IO_APIC_route_entry entry[0]; -}; -static struct sysfs_ioapic_data * mp_ioapic_data[MAX_IO_APICS]; +static struct IO_APIC_route_entry *ioapic_saved_data[MAX_IO_APICS]; -static int ioapic_suspend(struct sys_device *dev, pm_message_t state) +static void suspend_ioapic(int ioapic_id) { - struct IO_APIC_route_entry *entry; - struct sysfs_ioapic_data *data; + struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id]; int i; - data = container_of(dev, struct sysfs_ioapic_data, dev); - entry = data->entry; - for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ ) - *entry = ioapic_read_entry(dev->id, i); + if (!saved_data) + return; + + for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++) + saved_data[i] = ioapic_read_entry(ioapic_id, i); +} + +static int ioapic_suspend(void) +{ + int ioapic_id; + + for (ioapic_id = 0; ioapic_id < nr_ioapics; ioapic_id++) + suspend_ioapic(ioapic_id); return 0; } -static int ioapic_resume(struct sys_device *dev) +static void resume_ioapic(int ioapic_id) { - struct IO_APIC_route_entry *entry; - struct sysfs_ioapic_data *data; + struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id]; unsigned long flags; union IO_APIC_reg_00 reg_00; int i; - data = container_of(dev, struct sysfs_ioapic_data, dev); - entry = data->entry; + if (!saved_data) + return; raw_spin_lock_irqsave(&ioapic_lock, flags); - reg_00.raw = io_apic_read(dev->id, 0); - if (reg_00.bits.ID != mp_ioapics[dev->id].apicid) { - reg_00.bits.ID = mp_ioapics[dev->id].apicid; - io_apic_write(dev->id, 0, reg_00.raw); + reg_00.raw = io_apic_read(ioapic_id, 0); + if (reg_00.bits.ID != mp_ioapics[ioapic_id].apicid) { + reg_00.bits.ID = mp_ioapics[ioapic_id].apicid; + io_apic_write(ioapic_id, 0, reg_00.raw); } raw_spin_unlock_irqrestore(&ioapic_lock, flags); - for (i = 0; i < nr_ioapic_registers[dev->id]; i++) - ioapic_write_entry(dev->id, i, entry[i]); + for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++) + ioapic_write_entry(ioapic_id, i, saved_data[i]); +} - return 0; +static void ioapic_resume(void) +{ + int ioapic_id; + + for (ioapic_id = nr_ioapics - 1; ioapic_id >= 0; ioapic_id--) + resume_ioapic(ioapic_id); } -static struct sysdev_class ioapic_sysdev_class = { - .name = "ioapic", +static struct syscore_ops ioapic_syscore_ops = { .suspend = ioapic_suspend, .resume = ioapic_resume, }; -static int __init ioapic_init_sysfs(void) +static int __init ioapic_init_ops(void) { - struct sys_device * dev; - int i, size, error; + int i; - error = sysdev_class_register(&ioapic_sysdev_class); - if (error) - return error; + for (i = 0; i < nr_ioapics; i++) { + unsigned int size; - for (i = 0; i < nr_ioapics; i++ ) { - size = sizeof(struct sys_device) + nr_ioapic_registers[i] + size = nr_ioapic_registers[i] * sizeof(struct IO_APIC_route_entry); - mp_ioapic_data[i] = kzalloc(size, GFP_KERNEL); - if (!mp_ioapic_data[i]) { - printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i); - continue; - } - dev = &mp_ioapic_data[i]->dev; - dev->id = i; - dev->cls = &ioapic_sysdev_class; - error = sysdev_register(dev); - if (error) { - kfree(mp_ioapic_data[i]); - mp_ioapic_data[i] = NULL; - printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i); - continue; - } + ioapic_saved_data[i] = kzalloc(size, GFP_KERNEL); + if (!ioapic_saved_data[i]) + pr_err("IOAPIC %d: suspend/resume impossible!\n", i); } + register_syscore_ops(&ioapic_syscore_ops); + return 0; } -device_initcall(ioapic_init_sysfs); +device_initcall(ioapic_init_ops); /* * Dynamic irq allocate and deallocation diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index ab1122998dba..5a05ef63eb4a 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -21,6 +21,7 @@ #include <linux/percpu.h> #include <linux/string.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/delay.h> #include <linux/ctype.h> #include <linux/sched.h> @@ -1749,14 +1750,14 @@ static int mce_disable_error_reporting(void) return 0; } -static int mce_suspend(struct sys_device *dev, pm_message_t state) +static int mce_suspend(void) { return mce_disable_error_reporting(); } -static int mce_shutdown(struct sys_device *dev) +static void mce_shutdown(void) { - return mce_disable_error_reporting(); + mce_disable_error_reporting(); } /* @@ -1764,14 +1765,18 @@ static int mce_shutdown(struct sys_device *dev) * Only one CPU is active at this time, the others get re-added later using * CPU hotplug: */ -static int mce_resume(struct sys_device *dev) +static void mce_resume(void) { __mcheck_cpu_init_generic(); __mcheck_cpu_init_vendor(__this_cpu_ptr(&cpu_info)); - - return 0; } +static struct syscore_ops mce_syscore_ops = { + .suspend = mce_suspend, + .shutdown = mce_shutdown, + .resume = mce_resume, +}; + static void mce_cpu_restart(void *data) { del_timer_sync(&__get_cpu_var(mce_timer)); @@ -1808,9 +1813,6 @@ static void mce_enable_ce(void *all) } static struct sysdev_class mce_sysclass = { - .suspend = mce_suspend, - .shutdown = mce_shutdown, - .resume = mce_resume, .name = "machinecheck", }; @@ -2139,6 +2141,7 @@ static __init int mcheck_init_device(void) return err; } + register_syscore_ops(&mce_syscore_ops); register_hotcpu_notifier(&mce_cpu_notifier); misc_register(&mce_log_device); diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c index bebabec5b448..307dfbbf4a8e 100644 --- a/arch/x86/kernel/cpu/mtrr/main.c +++ b/arch/x86/kernel/cpu/mtrr/main.c @@ -45,6 +45,7 @@ #include <linux/cpu.h> #include <linux/pci.h> #include <linux/smp.h> +#include <linux/syscore_ops.h> #include <asm/processor.h> #include <asm/e820.h> @@ -630,7 +631,7 @@ struct mtrr_value { static struct mtrr_value mtrr_value[MTRR_MAX_VAR_RANGES]; -static int mtrr_save(struct sys_device *sysdev, pm_message_t state) +static int mtrr_save(void) { int i; @@ -642,7 +643,7 @@ static int mtrr_save(struct sys_device *sysdev, pm_message_t state) return 0; } -static int mtrr_restore(struct sys_device *sysdev) +static void mtrr_restore(void) { int i; @@ -653,12 +654,11 @@ static int mtrr_restore(struct sys_device *sysdev) mtrr_value[i].ltype); } } - return 0; } -static struct sysdev_driver mtrr_sysdev_driver = { +static struct syscore_ops mtrr_syscore_ops = { .suspend = mtrr_save, .resume = mtrr_restore, }; @@ -839,7 +839,7 @@ static int __init mtrr_init_finialize(void) * TBD: is there any system with such CPU which supports * suspend/resume? If no, we should remove the code. */ - sysdev_driver_register(&cpu_sysdev_class, &mtrr_sysdev_driver); + register_syscore_ops(&mtrr_syscore_ops); return 0; } diff --git a/arch/x86/kernel/i8237.c b/arch/x86/kernel/i8237.c index b42ca694dc68..8eeaa81de066 100644 --- a/arch/x86/kernel/i8237.c +++ b/arch/x86/kernel/i8237.c @@ -10,7 +10,7 @@ */ #include <linux/init.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <asm/dma.h> @@ -21,7 +21,7 @@ * in asm/dma.h. */ -static int i8237A_resume(struct sys_device *dev) +static void i8237A_resume(void) { unsigned long flags; int i; @@ -41,31 +41,15 @@ static int i8237A_resume(struct sys_device *dev) enable_dma(4); release_dma_lock(flags); - - return 0; } -static int i8237A_suspend(struct sys_device *dev, pm_message_t state) -{ - return 0; -} - -static struct sysdev_class i8237_sysdev_class = { - .name = "i8237", - .suspend = i8237A_suspend, +static struct syscore_ops i8237_syscore_ops = { .resume = i8237A_resume, }; -static struct sys_device device_i8237A = { - .id = 0, - .cls = &i8237_sysdev_class, -}; - -static int __init i8237A_init_sysfs(void) +static int __init i8237A_init_ops(void) { - int error = sysdev_class_register(&i8237_sysdev_class); - if (!error) - error = sysdev_register(&device_i8237A); - return error; + register_syscore_ops(&i8237_syscore_ops); + return 0; } -device_initcall(i8237A_init_sysfs); +device_initcall(i8237A_init_ops); diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c index d9ca749c123b..65b8f5c2eebf 100644 --- a/arch/x86/kernel/i8259.c +++ b/arch/x86/kernel/i8259.c @@ -8,7 +8,7 @@ #include <linux/random.h> #include <linux/init.h> #include <linux/kernel_stat.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/bitops.h> #include <linux/acpi.h> #include <linux/io.h> @@ -245,20 +245,19 @@ static void save_ELCR(char *trigger) trigger[1] = inb(0x4d1) & 0xDE; } -static int i8259A_resume(struct sys_device *dev) +static void i8259A_resume(void) { init_8259A(i8259A_auto_eoi); restore_ELCR(irq_trigger); - return 0; } -static int i8259A_suspend(struct sys_device *dev, pm_message_t state) +static int i8259A_suspend(void) { save_ELCR(irq_trigger); return 0; } -static int i8259A_shutdown(struct sys_device *dev) +static void i8259A_shutdown(void) { /* Put the i8259A into a quiescent state that * the kernel initialization code can get it @@ -266,21 +265,14 @@ static int i8259A_shutdown(struct sys_device *dev) */ outb(0xff, PIC_MASTER_IMR); /* mask all of 8259A-1 */ outb(0xff, PIC_SLAVE_IMR); /* mask all of 8259A-1 */ - return 0; } -static struct sysdev_class i8259_sysdev_class = { - .name = "i8259", +static struct syscore_ops i8259_syscore_ops = { .suspend = i8259A_suspend, .resume = i8259A_resume, .shutdown = i8259A_shutdown, }; -static struct sys_device device_i8259A = { - .id = 0, - .cls = &i8259_sysdev_class, -}; - static void mask_8259A(void) { unsigned long flags; @@ -399,17 +391,12 @@ struct legacy_pic default_legacy_pic = { struct legacy_pic *legacy_pic = &default_legacy_pic; -static int __init i8259A_init_sysfs(void) +static int __init i8259A_init_ops(void) { - int error; - - if (legacy_pic != &default_legacy_pic) - return 0; + if (legacy_pic == &default_legacy_pic) + register_syscore_ops(&i8259_syscore_ops); - error = sysdev_class_register(&i8259_sysdev_class); - if (!error) - error = sysdev_register(&device_i8259A); - return error; + return 0; } -device_initcall(i8259A_init_sysfs); +device_initcall(i8259A_init_ops); diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index 87af68e0e1e1..5ed0ab549eb8 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -82,6 +82,7 @@ #include <linux/cpu.h> #include <linux/fs.h> #include <linux/mm.h> +#include <linux/syscore_ops.h> #include <asm/microcode.h> #include <asm/processor.h> @@ -438,33 +439,25 @@ static int mc_sysdev_remove(struct sys_device *sys_dev) return 0; } -static int mc_sysdev_resume(struct sys_device *dev) +static struct sysdev_driver mc_sysdev_driver = { + .add = mc_sysdev_add, + .remove = mc_sysdev_remove, +}; + +/** + * mc_bp_resume - Update boot CPU microcode during resume. + */ +static void mc_bp_resume(void) { - int cpu = dev->id; + int cpu = smp_processor_id(); struct ucode_cpu_info *uci = ucode_cpu_info + cpu; - if (!cpu_online(cpu)) - return 0; - - /* - * All non-bootup cpus are still disabled, - * so only CPU 0 will apply ucode here. - * - * Moreover, there can be no concurrent - * updates from any other places at this point. - */ - WARN_ON(cpu != 0); - if (uci->valid && uci->mc) microcode_ops->apply_microcode(cpu); - - return 0; } -static struct sysdev_driver mc_sysdev_driver = { - .add = mc_sysdev_add, - .remove = mc_sysdev_remove, - .resume = mc_sysdev_resume, +static struct syscore_ops mc_syscore_ops = { + .resume = mc_bp_resume, }; static __cpuinit int @@ -542,6 +535,7 @@ static int __init microcode_init(void) if (error) return error; + register_syscore_ops(&mc_syscore_ops); register_hotcpu_notifier(&mc_cpu_notifier); pr_info("Microcode Update Driver: v" MICROCODE_VERSION diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index c01ffa5b9b87..82ada01625b9 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -27,7 +27,7 @@ #include <linux/kdebug.h> #include <linux/scatterlist.h> #include <linux/iommu-helper.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/io.h> #include <linux/gfp.h> #include <asm/atomic.h> @@ -589,7 +589,7 @@ void set_up_gart_resume(u32 aper_order, u32 aper_alloc) aperture_alloc = aper_alloc; } -static void gart_fixup_northbridges(struct sys_device *dev) +static void gart_fixup_northbridges(void) { int i; @@ -613,33 +613,20 @@ static void gart_fixup_northbridges(struct sys_device *dev) } } -static int gart_resume(struct sys_device *dev) +static void gart_resume(void) { pr_info("PCI-DMA: Resuming GART IOMMU\n"); - gart_fixup_northbridges(dev); + gart_fixup_northbridges(); enable_gart_translations(); - - return 0; } -static int gart_suspend(struct sys_device *dev, pm_message_t state) -{ - return 0; -} - -static struct sysdev_class gart_sysdev_class = { - .name = "gart", - .suspend = gart_suspend, +static struct syscore_ops gart_syscore_ops = { .resume = gart_resume, }; -static struct sys_device device_gart = { - .cls = &gart_sysdev_class, -}; - /* * Private Northbridge GATT initialization in case we cannot use the * AGP driver for some reason. @@ -650,7 +637,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info) unsigned aper_base, new_aper_base; struct pci_dev *dev; void *gatt; - int i, error; + int i; pr_info("PCI-DMA: Disabling AGP.\n"); @@ -685,12 +672,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info) agp_gatt_table = gatt; - error = sysdev_class_register(&gart_sysdev_class); - if (!error) - error = sysdev_register(&device_gart); - if (error) - panic("Could not register gart_sysdev -- " - "would corrupt data on next suspend"); + register_syscore_ops(&gart_syscore_ops); flush_gart(); diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index e2b7b0c06cdf..8dace181c88e 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -15,7 +15,7 @@ #include <linux/notifier.h> #include <linux/smp.h> #include <linux/oprofile.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/slab.h> #include <linux/moduleparam.h> #include <linux/kdebug.h> @@ -536,7 +536,7 @@ static void nmi_shutdown(void) #ifdef CONFIG_PM -static int nmi_suspend(struct sys_device *dev, pm_message_t state) +static int nmi_suspend(void) { /* Only one CPU left, just stop that one */ if (nmi_enabled == 1) @@ -544,49 +544,31 @@ static int nmi_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int nmi_resume(struct sys_device *dev) +static void nmi_resume(void) { if (nmi_enabled == 1) nmi_cpu_start(NULL); - return 0; } -static struct sysdev_class oprofile_sysclass = { - .name = "oprofile", +static struct syscore_ops oprofile_syscore_ops = { .resume = nmi_resume, .suspend = nmi_suspend, }; -static struct sys_device device_oprofile = { - .id = 0, - .cls = &oprofile_sysclass, -}; - -static int __init init_sysfs(void) +static void __init init_suspend_resume(void) { - int error; - - error = sysdev_class_register(&oprofile_sysclass); - if (error) - return error; - - error = sysdev_register(&device_oprofile); - if (error) - sysdev_class_unregister(&oprofile_sysclass); - - return error; + register_syscore_ops(&oprofile_syscore_ops); } -static void exit_sysfs(void) +static void exit_suspend_resume(void) { - sysdev_unregister(&device_oprofile); - sysdev_class_unregister(&oprofile_sysclass); + unregister_syscore_ops(&oprofile_syscore_ops); } #else -static inline int init_sysfs(void) { return 0; } -static inline void exit_sysfs(void) { } +static inline void init_suspend_resume(void) { } +static inline void exit_suspend_resume(void) { } #endif /* CONFIG_PM */ @@ -789,9 +771,7 @@ int __init op_nmi_init(struct oprofile_operations *ops) mux_init(ops); - ret = init_sysfs(); - if (ret) - return ret; + init_suspend_resume(); printk(KERN_INFO "oprofile: using NMI interrupt.\n"); return 0; @@ -799,5 +779,5 @@ int __init op_nmi_init(struct oprofile_operations *ops) void op_nmi_exit(void) { - exit_sysfs(); + exit_suspend_resume(); } -- cgit v1.2.3 From e1a85b2c519551d4792180cdab4074d7e99bf2c9 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rjw@sisk.pl> Date: Wed, 23 Mar 2011 22:16:04 +0100 Subject: timekeeping: Use syscore_ops instead of sysdev class and sysdev The timekeeping subsystem uses a sysdev class and a sysdev for executing timekeeping_suspend() after interrupts have been turned off on the boot CPU (during system suspend) and for executing timekeeping_resume() before turning on interrupts on the boot CPU (during system resume). However, since both of these functions ignore their arguments, the entire mechanism may be replaced with a struct syscore_ops object which is simpler. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> --- kernel/time/timekeeping.c | 27 ++++++++------------------- 1 file changed, 8 insertions(+), 19 deletions(-) diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 3bd7e3d5c632..8ad5d576755e 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -14,7 +14,7 @@ #include <linux/init.h> #include <linux/mm.h> #include <linux/sched.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/clocksource.h> #include <linux/jiffies.h> #include <linux/time.h> @@ -597,13 +597,12 @@ static struct timespec timekeeping_suspend_time; /** * timekeeping_resume - Resumes the generic timekeeping subsystem. - * @dev: unused * * This is for the generic clocksource timekeeping. * xtime/wall_to_monotonic/jiffies/etc are * still managed by arch specific suspend/resume code. */ -static int timekeeping_resume(struct sys_device *dev) +static void timekeeping_resume(void) { unsigned long flags; struct timespec ts; @@ -632,11 +631,9 @@ static int timekeeping_resume(struct sys_device *dev) /* Resume hrtimers */ hres_timers_resume(); - - return 0; } -static int timekeeping_suspend(struct sys_device *dev, pm_message_t state) +static int timekeeping_suspend(void) { unsigned long flags; @@ -654,26 +651,18 @@ static int timekeeping_suspend(struct sys_device *dev, pm_message_t state) } /* sysfs resume/suspend bits for timekeeping */ -static struct sysdev_class timekeeping_sysclass = { - .name = "timekeeping", +static struct syscore_ops timekeeping_syscore_ops = { .resume = timekeeping_resume, .suspend = timekeeping_suspend, }; -static struct sys_device device_timer = { - .id = 0, - .cls = &timekeeping_sysclass, -}; - -static int __init timekeeping_init_device(void) +static int __init timekeeping_init_ops(void) { - int error = sysdev_class_register(&timekeeping_sysclass); - if (!error) - error = sysdev_register(&device_timer); - return error; + register_syscore_ops(&timekeeping_syscore_ops); + return 0; } -device_initcall(timekeeping_init_device); +device_initcall(timekeeping_init_ops); /* * If the error is already larger, we look ahead even further -- cgit v1.2.3 From 134fac3f457f3dd753ecdb25e6da3e5f6629f696 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rjw@sisk.pl> Date: Wed, 23 Mar 2011 22:16:14 +0100 Subject: PCI / Intel IOMMU: Use syscore_ops instead of sysdev class and sysdev The Intel IOMMU subsystem uses a sysdev class and a sysdev for executing iommu_suspend() after interrupts have been turned off on the boot CPU (during system suspend) and for executing iommu_resume() before turning on interrupts on the boot CPU (during system resume). However, since both of these functions ignore their arguments, the entire mechanism may be replaced with a struct syscore_ops object which is simpler. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Joerg Roedel <joerg.roedel@amd.com> --- drivers/pci/intel-iommu.c | 38 +++++++++----------------------------- 1 file changed, 9 insertions(+), 29 deletions(-) diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 4789f8e8bf7a..a4115f1afe1f 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -36,7 +36,7 @@ #include <linux/iova.h> #include <linux/iommu.h> #include <linux/intel-iommu.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/tboot.h> #include <linux/dmi.h> #include <asm/cacheflush.h> @@ -3135,7 +3135,7 @@ static void iommu_flush_all(void) } } -static int iommu_suspend(struct sys_device *dev, pm_message_t state) +static int iommu_suspend(void) { struct dmar_drhd_unit *drhd; struct intel_iommu *iommu = NULL; @@ -3175,7 +3175,7 @@ nomem: return -ENOMEM; } -static int iommu_resume(struct sys_device *dev) +static void iommu_resume(void) { struct dmar_drhd_unit *drhd; struct intel_iommu *iommu = NULL; @@ -3183,7 +3183,7 @@ static int iommu_resume(struct sys_device *dev) if (init_iommu_hw()) { WARN(1, "IOMMU setup failed, DMAR can not resume!\n"); - return -EIO; + return; } for_each_active_iommu(iommu, drhd) { @@ -3204,40 +3204,20 @@ static int iommu_resume(struct sys_device *dev) for_each_active_iommu(iommu, drhd) kfree(iommu->iommu_state); - - return 0; } -static struct sysdev_class iommu_sysclass = { - .name = "iommu", +static struct syscore_ops iommu_syscore_ops = { .resume = iommu_resume, .suspend = iommu_suspend, }; -static struct sys_device device_iommu = { - .cls = &iommu_sysclass, -}; - -static int __init init_iommu_sysfs(void) +static void __init init_iommu_pm_ops(void) { - int error; - - error = sysdev_class_register(&iommu_sysclass); - if (error) - return error; - - error = sysdev_register(&device_iommu); - if (error) - sysdev_class_unregister(&iommu_sysclass); - - return error; + register_syscore_ops(&iommu_syscore_ops); } #else -static int __init init_iommu_sysfs(void) -{ - return 0; -} +static inline int init_iommu_pm_ops(void) { } #endif /* CONFIG_PM */ /* @@ -3320,7 +3300,7 @@ int __init intel_iommu_init(void) #endif dma_ops = &intel_dma_ops; - init_iommu_sysfs(); + init_iommu_pm_ops(); register_iommu(&intel_iommu_ops); -- cgit v1.2.3 From fb3600cc50302c9577b76838fcac1ee78828007d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rjw@sisk.pl> Date: Wed, 23 Mar 2011 22:16:23 +0100 Subject: KVM: Use syscore_ops instead of sysdev class and sysdev KVM uses a sysdev class and a sysdev for executing kvm_suspend() after interrupts have been turned off on the boot CPU (during system suspend) and for executing kvm_resume() before turning on interrupts on the boot CPU (during system resume). However, since both of these functions ignore their arguments, the entire mechanism may be replaced with a struct syscore_ops object which is simpler. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Avi Kivity <avi@redhat.com> --- virt/kvm/kvm_main.c | 34 ++++++++-------------------------- 1 file changed, 8 insertions(+), 26 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 1fa0d292119a..24444527f422 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -30,7 +30,7 @@ #include <linux/debugfs.h> #include <linux/highmem.h> #include <linux/file.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/cpu.h> #include <linux/sched.h> #include <linux/cpumask.h> @@ -2447,33 +2447,26 @@ static void kvm_exit_debug(void) debugfs_remove(kvm_debugfs_dir); } -static int kvm_suspend(struct sys_device *dev, pm_message_t state) +static int kvm_suspend(void) { if (kvm_usage_count) hardware_disable_nolock(NULL); return 0; } -static int kvm_resume(struct sys_device *dev) +static void kvm_resume(void) { if (kvm_usage_count) { WARN_ON(raw_spin_is_locked(&kvm_lock)); hardware_enable_nolock(NULL); } - return 0; } -static struct sysdev_class kvm_sysdev_class = { - .name = "kvm", +static struct syscore_ops kvm_syscore_ops = { .suspend = kvm_suspend, .resume = kvm_resume, }; -static struct sys_device kvm_sysdev = { - .id = 0, - .cls = &kvm_sysdev_class, -}; - struct page *bad_page; pfn_t bad_pfn; @@ -2557,14 +2550,6 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, goto out_free_2; register_reboot_notifier(&kvm_reboot_notifier); - r = sysdev_class_register(&kvm_sysdev_class); - if (r) - goto out_free_3; - - r = sysdev_register(&kvm_sysdev); - if (r) - goto out_free_4; - /* A kmem cache lets us meet the alignment requirements of fx_save. */ if (!vcpu_align) vcpu_align = __alignof__(struct kvm_vcpu); @@ -2572,7 +2557,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, 0, NULL); if (!kvm_vcpu_cache) { r = -ENOMEM; - goto out_free_5; + goto out_free_3; } r = kvm_async_pf_init(); @@ -2589,6 +2574,8 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, goto out_unreg; } + register_syscore_ops(&kvm_syscore_ops); + kvm_preempt_ops.sched_in = kvm_sched_in; kvm_preempt_ops.sched_out = kvm_sched_out; @@ -2600,10 +2587,6 @@ out_unreg: kvm_async_pf_deinit(); out_free: kmem_cache_destroy(kvm_vcpu_cache); -out_free_5: - sysdev_unregister(&kvm_sysdev); -out_free_4: - sysdev_class_unregister(&kvm_sysdev_class); out_free_3: unregister_reboot_notifier(&kvm_reboot_notifier); unregister_cpu_notifier(&kvm_cpu_notifier); @@ -2631,8 +2614,7 @@ void kvm_exit(void) misc_deregister(&kvm_dev); kmem_cache_destroy(kvm_vcpu_cache); kvm_async_pf_deinit(); - sysdev_unregister(&kvm_sysdev); - sysdev_class_unregister(&kvm_sysdev_class); + unregister_syscore_ops(&kvm_syscore_ops); unregister_reboot_notifier(&kvm_reboot_notifier); unregister_cpu_notifier(&kvm_cpu_notifier); on_each_cpu(hardware_disable_nolock, NULL, 1); -- cgit v1.2.3 From e00e56dfd3cf1d209ce630a2b440c91e4a30bbd3 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rjw@sisk.pl> Date: Wed, 23 Mar 2011 22:16:32 +0100 Subject: cpufreq: Use syscore_ops for boot CPU suspend/resume (v2) The cpufreq subsystem uses sysdev suspend and resume for executing cpufreq_suspend() and cpufreq_resume(), respectively, during system suspend, after interrupts have been switched off on the boot CPU, and during system resume, while interrupts are still off on the boot CPU. In both cases the other CPUs are off-line at the relevant point (either they have been switched off via CPU hotplug during suspend, or they haven't been switched on yet during resume). For this reason, although it may seem that cpufreq_suspend() and cpufreq_resume() are executed for all CPUs in the system, they are only called for the boot CPU in fact, which is quite confusing. To remove the confusion and to prepare for elimiating sysdev suspend and resume operations from the kernel enirely, convernt cpufreq to using a struct syscore_ops object for the boot CPU suspend and resume and rename the callbacks so that their names reflect their purpose. In addition, put some explanatory remarks into their kerneldoc comments. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> --- drivers/cpufreq/cpufreq.c | 66 +++++++++++++++++++---------------------------- 1 file changed, 26 insertions(+), 40 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 0f17ad8585d7..b03771d4787c 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -28,6 +28,7 @@ #include <linux/cpu.h> #include <linux/completion.h> #include <linux/mutex.h> +#include <linux/syscore_ops.h> #include <trace/events/power.h> @@ -1340,35 +1341,31 @@ out: } EXPORT_SYMBOL(cpufreq_get); +static struct sysdev_driver cpufreq_sysdev_driver = { + .add = cpufreq_add_dev, + .remove = cpufreq_remove_dev, +}; + /** - * cpufreq_suspend - let the low level driver prepare for suspend + * cpufreq_bp_suspend - Prepare the boot CPU for system suspend. + * + * This function is only executed for the boot processor. The other CPUs + * have been put offline by means of CPU hotplug. */ - -static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg) +static int cpufreq_bp_suspend(void) { int ret = 0; - int cpu = sysdev->id; + int cpu = smp_processor_id(); struct cpufreq_policy *cpu_policy; dprintk("suspending cpu %u\n", cpu); - if (!cpu_online(cpu)) - return 0; - - /* we may be lax here as interrupts are off. Nonetheless - * we need to grab the correct cpu policy, as to check - * whether we really run on this CPU. - */ - + /* If there's no policy for the boot CPU, we have nothing to do. */ cpu_policy = cpufreq_cpu_get(cpu); if (!cpu_policy) - return -EINVAL; - - /* only handle each CPU group once */ - if (unlikely(cpu_policy->cpu != cpu)) - goto out; + return 0; if (cpufreq_driver->suspend) { ret = cpufreq_driver->suspend(cpu_policy); @@ -1377,13 +1374,12 @@ static int cpufreq_suspend(struct sys_device *sysdev, pm_message_t pmsg) "step on CPU %u\n", cpu_policy->cpu); } -out: cpufreq_cpu_put(cpu_policy); return ret; } /** - * cpufreq_resume - restore proper CPU frequency handling after resume + * cpufreq_bp_resume - Restore proper frequency handling of the boot CPU. * * 1.) resume CPUfreq hardware support (cpufreq_driver->resume()) * 2.) schedule call cpufreq_update_policy() ASAP as interrupts are @@ -1391,31 +1387,23 @@ out: * what we believe it to be. This is a bit later than when it * should be, but nonethteless it's better than calling * cpufreq_driver->get() here which might re-enable interrupts... + * + * This function is only executed for the boot CPU. The other CPUs have not + * been turned on yet. */ -static int cpufreq_resume(struct sys_device *sysdev) +static void cpufreq_bp_resume(void) { int ret = 0; - int cpu = sysdev->id; + int cpu = smp_processor_id(); struct cpufreq_policy *cpu_policy; dprintk("resuming cpu %u\n", cpu); - if (!cpu_online(cpu)) - return 0; - - /* we may be lax here as interrupts are off. Nonetheless - * we need to grab the correct cpu policy, as to check - * whether we really run on this CPU. - */ - + /* If there's no policy for the boot CPU, we have nothing to do. */ cpu_policy = cpufreq_cpu_get(cpu); if (!cpu_policy) - return -EINVAL; - - /* only handle each CPU group once */ - if (unlikely(cpu_policy->cpu != cpu)) - goto fail; + return; if (cpufreq_driver->resume) { ret = cpufreq_driver->resume(cpu_policy); @@ -1430,14 +1418,11 @@ static int cpufreq_resume(struct sys_device *sysdev) fail: cpufreq_cpu_put(cpu_policy); - return ret; } -static struct sysdev_driver cpufreq_sysdev_driver = { - .add = cpufreq_add_dev, - .remove = cpufreq_remove_dev, - .suspend = cpufreq_suspend, - .resume = cpufreq_resume, +static struct syscore_ops cpufreq_syscore_ops = { + .suspend = cpufreq_bp_suspend, + .resume = cpufreq_bp_resume, }; @@ -2002,6 +1987,7 @@ static int __init cpufreq_core_init(void) cpufreq_global_kobject = kobject_create_and_add("cpufreq", &cpu_sysdev_class.kset.kobj); BUG_ON(!cpufreq_global_kobject); + register_syscore_ops(&cpufreq_syscore_ops); return 0; } -- cgit v1.2.3 From d47d81c0e9abdc3c88653fabff5beae82c949b09 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rjw@sisk.pl> Date: Wed, 23 Mar 2011 22:16:41 +0100 Subject: Introduce ARCH_NO_SYSDEV_OPS config option (v2) Introduce Kconfig option allowing architectures where sysdev operations used during system suspend, resume and shutdown have been completely replaced with struct sycore_ops operations to avoid building sysdev code that will never be used. Make callbacks in struct sys_device and struct sysdev_driver depend on ARCH_NO_SYSDEV_OPS to allows us to verify if all of the references have been actually removed from the code the given architecture depends on. Make x86 select ARCH_NO_SYSDEV_OPS. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> --- arch/x86/Kconfig | 1 + drivers/base/Kconfig | 7 +++++++ drivers/base/sys.c | 3 ++- include/linux/device.h | 4 ++++ include/linux/pm.h | 10 ++++++++-- include/linux/sysdev.h | 7 +++++-- 6 files changed, 27 insertions(+), 5 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d57ddd7573cc..b1cd5a96a511 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -71,6 +71,7 @@ config X86 select GENERIC_IRQ_SHOW select IRQ_FORCED_THREADING select USE_GENERIC_SMP_HELPERS if SMP + select ARCH_NO_SYSDEV_OPS config INSTRUCTION_DECODER def_bool (KPROBES || PERF_EVENTS) diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index d57e8d0fb823..e9e5238f3106 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -168,4 +168,11 @@ config SYS_HYPERVISOR bool default n +config ARCH_NO_SYSDEV_OPS + bool + ---help--- + To be selected by architectures that don't use sysdev class or + sysdev driver power management (suspend/resume) and shutdown + operations. + endmenu diff --git a/drivers/base/sys.c b/drivers/base/sys.c index f6fb54741602..fbe72da6c414 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -329,7 +329,7 @@ void sysdev_unregister(struct sys_device *sysdev) } - +#ifndef CONFIG_ARCH_NO_SYSDEV_OPS /** * sysdev_shutdown - Shut down all system devices. * @@ -524,6 +524,7 @@ int sysdev_resume(void) return 0; } EXPORT_SYMBOL_GPL(sysdev_resume); +#endif /* CONFIG_ARCH_NO_SYSDEV_OPS */ int __init system_bus_init(void) { diff --git a/include/linux/device.h b/include/linux/device.h index 144ec135875f..ab8dfc095709 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -633,8 +633,12 @@ static inline int devtmpfs_mount(const char *mountpoint) { return 0; } /* drivers/base/power/shutdown.c */ extern void device_shutdown(void); +#ifndef CONFIG_ARCH_NO_SYSDEV_OPS /* drivers/base/sys.c */ extern void sysdev_shutdown(void); +#else +static inline void sysdev_shutdown(void) { } +#endif /* debugging and troubleshooting/diagnostic helpers. */ extern const char *dev_driver_string(const struct device *dev); diff --git a/include/linux/pm.h b/include/linux/pm.h index 6618216bb973..512e09177e57 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -529,13 +529,19 @@ struct dev_power_domain { */ #ifdef CONFIG_PM_SLEEP -extern void device_pm_lock(void); +#ifndef CONFIG_ARCH_NO_SYSDEV_OPS +extern int sysdev_suspend(pm_message_t state); extern int sysdev_resume(void); +#else +static inline int sysdev_suspend(pm_message_t state) { return 0; } +static inline int sysdev_resume(void) { return 0; } +#endif + +extern void device_pm_lock(void); extern void dpm_resume_noirq(pm_message_t state); extern void dpm_resume_end(pm_message_t state); extern void device_pm_unlock(void); -extern int sysdev_suspend(pm_message_t state); extern int dpm_suspend_noirq(pm_message_t state); extern int dpm_suspend_start(pm_message_t state); diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h index 1154c29f4101..8a75da551e4e 100644 --- a/include/linux/sysdev.h +++ b/include/linux/sysdev.h @@ -33,12 +33,13 @@ struct sysdev_class { const char *name; struct list_head drivers; struct sysdev_class_attribute **attrs; - + struct kset kset; +#ifndef CONFIG_ARCH_NO_SYSDEV_OPS /* Default operations for these types of devices */ int (*shutdown)(struct sys_device *); int (*suspend)(struct sys_device *, pm_message_t state); int (*resume)(struct sys_device *); - struct kset kset; +#endif }; struct sysdev_class_attribute { @@ -76,9 +77,11 @@ struct sysdev_driver { struct list_head entry; int (*add)(struct sys_device *); int (*remove)(struct sys_device *); +#ifndef CONFIG_ARCH_NO_SYSDEV_OPS int (*shutdown)(struct sys_device *); int (*suspend)(struct sys_device *, pm_message_t state); int (*resume)(struct sys_device *); +#endif }; -- cgit v1.2.3 From b769f49463711205d57286e64cf535ed4daf59e9 Mon Sep 17 00:00:00 2001 From: Dan Rosenberg <drosenberg@vsecurity.com> Date: Wed, 23 Mar 2011 10:53:41 -0400 Subject: sound/oss: remove offset from load_patch callbacks Was: [PATCH] sound/oss/midi_synth: prevent underflow, use of uninitialized value, and signedness issue The offset passed to midi_synth_load_patch() can be essentially arbitrary. If it's greater than the header length, this will result in a copy_from_user(dst, src, negative_val). While this will just return -EFAULT on x86, on other architectures this may cause memory corruption. Additionally, the length field of the sysex_info structure may not be initialized prior to its use. Finally, a signed comparison may result in an unintentionally large loop. On suggestion by Takashi Iwai, version two removes the offset argument from the load_patch callbacks entirely, which also resolves similar issues in opl3. Compile tested only. v3 adjusts comments and hopefully gets copy offsets right. Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/oss/dev_table.h | 2 +- sound/oss/midi_synth.c | 30 +++++++++++++----------------- sound/oss/midi_synth.h | 2 +- sound/oss/opl3.c | 8 ++------ sound/oss/sequencer.c | 2 +- 5 files changed, 18 insertions(+), 26 deletions(-) diff --git a/sound/oss/dev_table.h b/sound/oss/dev_table.h index b7617bee6388..0199a317c5a9 100644 --- a/sound/oss/dev_table.h +++ b/sound/oss/dev_table.h @@ -271,7 +271,7 @@ struct synth_operations void (*reset) (int dev); void (*hw_control) (int dev, unsigned char *event); int (*load_patch) (int dev, int format, const char __user *addr, - int offs, int count, int pmgr_flag); + int count, int pmgr_flag); void (*aftertouch) (int dev, int voice, int pressure); void (*controller) (int dev, int voice, int ctrl_num, int value); void (*panning) (int dev, int voice, int value); diff --git a/sound/oss/midi_synth.c b/sound/oss/midi_synth.c index 3c09374ea5bf..2292c230d7e6 100644 --- a/sound/oss/midi_synth.c +++ b/sound/oss/midi_synth.c @@ -476,7 +476,7 @@ EXPORT_SYMBOL(midi_synth_hw_control); int midi_synth_load_patch(int dev, int format, const char __user *addr, - int offs, int count, int pmgr_flag) + int count, int pmgr_flag) { int orig_dev = synth_devs[dev]->midi_dev; @@ -491,33 +491,29 @@ midi_synth_load_patch(int dev, int format, const char __user *addr, if (!prefix_cmd(orig_dev, 0xf0)) return 0; + /* Invalid patch format */ if (format != SYSEX_PATCH) - { -/* printk("MIDI Error: Invalid patch format (key) 0x%x\n", format);*/ return -EINVAL; - } + + /* Patch header too short */ if (count < hdr_size) - { -/* printk("MIDI Error: Patch header too short\n");*/ return -EINVAL; - } + count -= hdr_size; /* - * Copy the header from user space but ignore the first bytes which have - * been transferred already. + * Copy the header from user space */ - if(copy_from_user(&((char *) &sysex)[offs], &(addr)[offs], hdr_size - offs)) + if (copy_from_user(&sysex, addr, hdr_size)) return -EFAULT; - - if (count < sysex.len) - { -/* printk(KERN_WARNING "MIDI Warning: Sysex record too short (%d<%d)\n", count, (int) sysex.len);*/ + + /* Sysex record too short */ + if ((unsigned)count < (unsigned)sysex.len) sysex.len = count; - } - left = sysex.len; - src_offs = 0; + + left = sysex.len; + src_offs = 0; for (i = 0; i < left && !signal_pending(current); i++) { diff --git a/sound/oss/midi_synth.h b/sound/oss/midi_synth.h index 6bc9d00bc77c..b64ddd6c4abc 100644 --- a/sound/oss/midi_synth.h +++ b/sound/oss/midi_synth.h @@ -8,7 +8,7 @@ int midi_synth_open (int dev, int mode); void midi_synth_close (int dev); void midi_synth_hw_control (int dev, unsigned char *event); int midi_synth_load_patch (int dev, int format, const char __user * addr, - int offs, int count, int pmgr_flag); + int count, int pmgr_flag); void midi_synth_panning (int dev, int channel, int pressure); void midi_synth_aftertouch (int dev, int channel, int pressure); void midi_synth_controller (int dev, int channel, int ctrl_num, int value); diff --git a/sound/oss/opl3.c b/sound/oss/opl3.c index 938c48c43585..cbf957424d5c 100644 --- a/sound/oss/opl3.c +++ b/sound/oss/opl3.c @@ -820,7 +820,7 @@ static void opl3_hw_control(int dev, unsigned char *event) } static int opl3_load_patch(int dev, int format, const char __user *addr, - int offs, int count, int pmgr_flag) + int count, int pmgr_flag) { struct sbi_instrument ins; @@ -830,11 +830,7 @@ static int opl3_load_patch(int dev, int format, const char __user *addr, return -EINVAL; } - /* - * What the fuck is going on here? We leave junk in the beginning - * of ins and then check the field pretty close to that beginning? - */ - if(copy_from_user(&((char *) &ins)[offs], addr + offs, sizeof(ins) - offs)) + if (copy_from_user(&ins, addr, sizeof(ins))) return -EFAULT; if (ins.channel < 0 || ins.channel >= SBFM_MAXINSTR) diff --git a/sound/oss/sequencer.c b/sound/oss/sequencer.c index 5ea1098ac427..30bcfe470f83 100644 --- a/sound/oss/sequencer.c +++ b/sound/oss/sequencer.c @@ -241,7 +241,7 @@ int sequencer_write(int dev, struct file *file, const char __user *buf, int coun return -ENXIO; fmt = (*(short *) &event_rec[0]) & 0xffff; - err = synth_devs[dev]->load_patch(dev, fmt, buf, p + 4, c, 0); + err = synth_devs[dev]->load_patch(dev, fmt, buf + p, c, 0); if (err < 0) return err; -- cgit v1.2.3 From 4d00135a680727f6c3be78f8befaac009030e4df Mon Sep 17 00:00:00 2001 From: Dan Rosenberg <drosenberg@vsecurity.com> Date: Wed, 23 Mar 2011 11:42:57 -0400 Subject: sound/oss/opl3: validate voice and channel indexes User-controllable indexes for voice and channel values may cause reading and writing beyond the bounds of their respective arrays, leading to potentially exploitable memory corruption. Validate these indexes. Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Cc: stable@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/oss/opl3.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/sound/oss/opl3.c b/sound/oss/opl3.c index cbf957424d5c..407cd677950b 100644 --- a/sound/oss/opl3.c +++ b/sound/oss/opl3.c @@ -845,6 +845,10 @@ static int opl3_load_patch(int dev, int format, const char __user *addr, static void opl3_panning(int dev, int voice, int value) { + + if (voice < 0 || voice >= devc->nr_voice) + return; + devc->voc[voice].panning = value; } @@ -1062,8 +1066,15 @@ static int opl3_alloc_voice(int dev, int chn, int note, struct voice_alloc_info static void opl3_setup_voice(int dev, int voice, int chn) { - struct channel_info *info = - &synth_devs[dev]->chn_info[chn]; + struct channel_info *info; + + if (voice < 0 || voice >= devc->nr_voice) + return; + + if (chn < 0 || chn > 15) + return; + + info = &synth_devs[dev]->chn_info[chn]; opl3_set_instr(dev, voice, info->pgm_num); -- cgit v1.2.3 From e19869204fca4ae28b6e4d8f5e20849e9f7b18bd Mon Sep 17 00:00:00 2001 From: Clemens Ladisch <clemens@ladisch.de> Date: Thu, 17 Feb 2011 14:26:51 +0100 Subject: ALSA: usb-audio: add Cakewalk UM-1G support Add a quirk for the Cakewalk UM-1G USB MIDI interface in "advanced driver" mode. (It already works in standard mode.) Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/usb/quirks-table.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index c0dcfca9b5b5..196c75328561 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -1567,6 +1567,19 @@ YAMAHA_DEVICE(0x7010, "UB99"), } } }, +{ + USB_DEVICE_VENDOR_SPEC(0x0582, 0x0104), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Roland", */ + /* .product_name = "UM-1G", */ + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, { /* has ID 0x0110 when not in Advanced Driver mode */ USB_DEVICE_VENDOR_SPEC(0x0582, 0x010f), -- cgit v1.2.3 From cb6f4b55f5907528d8a1a927b850c9eb04d4ef90 Mon Sep 17 00:00:00 2001 From: "Keith A. Milner" <maillist@superlative.org> Date: Mon, 21 Mar 2011 20:15:08 +0000 Subject: ALSA: usb-audio - Support for Boss JS-8 Jam Station Signed-off-by: Keith A. Milner <maillist@superlative.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/usb/quirks-table.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index 196c75328561..c66d3f64dcf8 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -1580,6 +1580,33 @@ YAMAHA_DEVICE(0x7010, "UB99"), } } }, +{ + /* Boss JS-8 Jam Station */ + USB_DEVICE(0x0582, 0x0109), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "BOSS", */ + /* .product_name = "JS-8", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, { /* has ID 0x0110 when not in Advanced Driver mode */ USB_DEVICE_VENDOR_SPEC(0x0582, 0x010f), -- cgit v1.2.3 From 20b67dddcc5f29d3d0c900225d85e0ac655bc69d Mon Sep 17 00:00:00 2001 From: Takashi Iwai <tiwai@suse.de> Date: Wed, 23 Mar 2011 22:54:32 +0100 Subject: ALSA: hda - Fix SPDIF out regression on ALC889 The commit 5a8cfb4e8ae317d283f84122ed20faa069c5e0c4 ALSA: hda - Use ALC_INIT_DEFAULT for really default initialization changed to use the default initialization method for ALC889, but this caused a regression on SPDIF output on some machines. This seems due to the COEF setup included in the default init procedure. For making SPDIF working again, the COEF-setup has to be avoided for the id 0889. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=24342 Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/pci/hda/patch_realtek.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 5d582de91c19..0ef0035fe99f 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1290,7 +1290,7 @@ static void alc_auto_init_amp(struct hda_codec *codec, int type) case 0x10ec0883: case 0x10ec0885: case 0x10ec0887: - case 0x10ec0889: + /*case 0x10ec0889:*/ /* this causes an SPDIF problem */ alc889_coef_init(codec); break; case 0x10ec0888: -- cgit v1.2.3 From 9e69c210822c4035708a6111567c96364ca244d5 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Tue, 15 Mar 2011 15:44:01 -0300 Subject: perf session: Pass evsel in event_ops->sample() Resolving the sample->id to an evsel since the most advanced tools, report and annotate, and the others will too when they evolve to properly support multi-event perf.data files. Good also because it does an extra validation, checking that the ID is valid when present. When that is not the case, the overhead is just a branch + function call (perf_evlist__id2evsel). Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/builtin-annotate.c | 18 ++++------------ tools/perf/builtin-diff.c | 1 + tools/perf/builtin-inject.c | 11 +++++++++- tools/perf/builtin-kmem.c | 1 + tools/perf/builtin-lock.c | 4 +++- tools/perf/builtin-report.c | 19 ++++------------ tools/perf/builtin-sched.c | 1 + tools/perf/builtin-script.c | 15 ++++--------- tools/perf/builtin-timechart.c | 11 ++++++++++ tools/perf/util/build-id.c | 1 + tools/perf/util/hist.h | 1 + .../perf/util/scripting-engines/trace-event-perl.c | 1 + .../util/scripting-engines/trace-event-python.c | 1 + tools/perf/util/session.c | 25 ++++++++++++++++++++-- tools/perf/util/session.h | 7 ++++-- tools/perf/util/trace-event-scripting.c | 1 + tools/perf/util/trace-event.h | 1 + 17 files changed, 73 insertions(+), 46 deletions(-) diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 695de4b5ae63..e18eb7ed30ae 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -42,9 +42,9 @@ static const char *sym_hist_filter; static int perf_evlist__add_sample(struct perf_evlist *evlist, struct perf_sample *sample, + struct perf_evsel *evsel, struct addr_location *al) { - struct perf_evsel *evsel; struct hist_entry *he; int ret; @@ -59,18 +59,6 @@ static int perf_evlist__add_sample(struct perf_evlist *evlist, return 0; } - evsel = perf_evlist__id2evsel(evlist, sample->id); - if (evsel == NULL) { - /* - * FIXME: Propagate this back, but at least we're in a builtin, - * where exit() is allowed. ;-) - */ - ui__warning("Invalid %s file, contains samples with id not in " - "its header!\n", input_name); - exit_browser(0); - exit(1); - } - he = __hists__add_entry(&evsel->hists, al, NULL, 1); if (he == NULL) return -ENOMEM; @@ -92,6 +80,7 @@ static int perf_evlist__add_sample(struct perf_evlist *evlist, static int process_sample_event(union perf_event *event, struct perf_sample *sample, + struct perf_evsel *evsel, struct perf_session *session) { struct addr_location al; @@ -103,7 +92,8 @@ static int process_sample_event(union perf_event *event, return -1; } - if (!al.filtered && perf_evlist__add_sample(session->evlist, sample, &al)) { + if (!al.filtered && + perf_evlist__add_sample(session->evlist, sample, evsel, &al)) { pr_warning("problem incrementing symbol count, " "skipping event\n"); return -1; diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index 6b7d91160ecb..e8219990f8b8 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -32,6 +32,7 @@ static int hists__add_entry(struct hists *self, static int diff__process_sample_event(union perf_event *event, struct perf_sample *sample, + struct perf_evsel *evsel __used, struct perf_session *session) { struct addr_location al; diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index e29f04ed3396..8dfc12bb119b 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -43,6 +43,14 @@ static int perf_event__repipe(union perf_event *event, return perf_event__repipe_synth(event, session); } +static int perf_event__repipe_sample(union perf_event *event, + struct perf_sample *sample __used, + struct perf_evsel *evsel __used, + struct perf_session *session) +{ + return perf_event__repipe_synth(event, session); +} + static int perf_event__repipe_mmap(union perf_event *event, struct perf_sample *sample, struct perf_session *session) @@ -124,6 +132,7 @@ static int dso__inject_build_id(struct dso *self, struct perf_session *session) static int perf_event__inject_buildid(union perf_event *event, struct perf_sample *sample, + struct perf_evsel *evsel __used, struct perf_session *session) { struct addr_location al; @@ -164,7 +173,7 @@ repipe: } struct perf_event_ops inject_ops = { - .sample = perf_event__repipe, + .sample = perf_event__repipe_sample, .mmap = perf_event__repipe, .comm = perf_event__repipe, .fork = perf_event__repipe, diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c index 7f618f4e7b79..225e963df105 100644 --- a/tools/perf/builtin-kmem.c +++ b/tools/perf/builtin-kmem.c @@ -305,6 +305,7 @@ static void process_raw_event(union perf_event *raw_event __used, void *data, static int process_sample_event(union perf_event *event, struct perf_sample *sample, + struct perf_evsel *evsel __used, struct perf_session *session) { struct thread *thread = perf_session__findnew(session, event->ip.pid); diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c index 7a2a79d2cf2c..9ac05aafd9b2 100644 --- a/tools/perf/builtin-lock.c +++ b/tools/perf/builtin-lock.c @@ -845,7 +845,9 @@ static void dump_info(void) die("Unknown type of information\n"); } -static int process_sample_event(union perf_event *event, struct perf_sample *sample, +static int process_sample_event(union perf_event *event, + struct perf_sample *sample, + struct perf_evsel *evsel __used, struct perf_session *s) { struct thread *thread = perf_session__findnew(s, sample->tid); diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index b1b82009ab9b..498c6f70a747 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -50,12 +50,12 @@ static symbol_filter_t annotate_init; static int perf_session__add_hist_entry(struct perf_session *session, struct addr_location *al, - struct perf_sample *sample) + struct perf_sample *sample, + struct perf_evsel *evsel) { struct symbol *parent = NULL; int err = 0; struct hist_entry *he; - struct perf_evsel *evsel; if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) { err = perf_session__resolve_callchain(session, al->thread, @@ -64,18 +64,6 @@ static int perf_session__add_hist_entry(struct perf_session *session, return err; } - evsel = perf_evlist__id2evsel(session->evlist, sample->id); - if (evsel == NULL) { - /* - * FIXME: Propagate this back, but at least we're in a builtin, - * where exit() is allowed. ;-) - */ - ui__warning("Invalid %s file, contains samples with id %" PRIu64 " not in " - "its header!\n", input_name, sample->id); - exit_browser(0); - exit(1); - } - he = __hists__add_entry(&evsel->hists, al, parent, sample->period); if (he == NULL) return -ENOMEM; @@ -113,6 +101,7 @@ out: static int process_sample_event(union perf_event *event, struct perf_sample *sample, + struct perf_evsel *evsel, struct perf_session *session) { struct addr_location al; @@ -127,7 +116,7 @@ static int process_sample_event(union perf_event *event, if (al.filtered || (hide_unresolved && al.sym == NULL)) return 0; - if (perf_session__add_hist_entry(session, &al, sample)) { + if (perf_session__add_hist_entry(session, &al, sample, evsel)) { pr_debug("problem incrementing symbol period, skipping event\n"); return -1; } diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index a32f411faeac..dcfe8873c9a1 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -1603,6 +1603,7 @@ static void process_raw_event(union perf_event *raw_event __used, static int process_sample_event(union perf_event *event, struct perf_sample *sample, + struct perf_evsel *evsel __used, struct perf_session *session) { struct thread *thread; diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 9f5fc5492141..ac574ea23917 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -162,19 +162,11 @@ static void print_sample_start(struct perf_sample *sample, static void process_event(union perf_event *event __unused, struct perf_sample *sample, + struct perf_evsel *evsel, struct perf_session *session, struct thread *thread) { - struct perf_event_attr *attr; - struct perf_evsel *evsel; - - evsel = perf_evlist__id2evsel(session->evlist, sample->id); - if (evsel == NULL) { - pr_err("Invalid data. Contains samples with id not in " - "its header!\n"); - return; - } - attr = &evsel->attr; + struct perf_event_attr *attr = &evsel->attr; if (output_fields[attr->type] == 0) return; @@ -244,6 +236,7 @@ static char const *input_name = "perf.data"; static int process_sample_event(union perf_event *event, struct perf_sample *sample, + struct perf_evsel *evsel, struct perf_session *session) { struct thread *thread = perf_session__findnew(session, event->ip.pid); @@ -264,7 +257,7 @@ static int process_sample_event(union perf_event *event, last_timestamp = sample->time; return 0; } - scripting_ops->process_event(event, sample, session, thread); + scripting_ops->process_event(event, sample, evsel, session, thread); session->hists.stats.total_period += sample->period; return 0; diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index 67c0459dc325..aa26f4d66d10 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -488,6 +488,7 @@ static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te) static int process_sample_event(union perf_event *event __used, struct perf_sample *sample, + struct perf_evsel *evsel __used, struct perf_session *session) { struct trace_entry *te; @@ -506,6 +507,16 @@ static int process_sample_event(union perf_event *event __used, struct power_entry_old *peo; peo = (void *)te; #endif + /* + * FIXME: use evsel, its already mapped from id to perf_evsel, + * remove perf_header__find_event infrastructure bits. + * Mapping all these "power:cpu_idle" strings to the tracepoint + * ID and then just comparing against evsel->attr.config. + * + * e.g.: + * + * if (evsel->attr.config == power_cpu_idle_id) + */ event_str = perf_header__find_event(te->type); if (!event_str) diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c index 31f934af9861..a91cd99f26ea 100644 --- a/tools/perf/util/build-id.c +++ b/tools/perf/util/build-id.c @@ -16,6 +16,7 @@ static int build_id__mark_dso_hit(union perf_event *event, struct perf_sample *sample __used, + struct perf_evsel *evsel __used, struct perf_session *session) { struct addr_location al; diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h index cb6858a2f9a3..3beb97c4d822 100644 --- a/tools/perf/util/hist.h +++ b/tools/perf/util/hist.h @@ -29,6 +29,7 @@ struct events_stats { u32 nr_events[PERF_RECORD_HEADER_MAX]; u32 nr_unknown_events; u32 nr_invalid_chains; + u32 nr_unknown_id; }; enum hist_column { diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c index 621427212e86..74350ffb57fe 100644 --- a/tools/perf/util/scripting-engines/trace-event-perl.c +++ b/tools/perf/util/scripting-engines/trace-event-perl.c @@ -247,6 +247,7 @@ static inline struct event *find_cache_event(int type) static void perl_process_event(union perf_event *pevent __unused, struct perf_sample *sample, + struct perf_evsel *evsel, struct perf_session *session __unused, struct thread *thread) { diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index 1b85d6055159..6ccf70e8d8f2 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -206,6 +206,7 @@ static inline struct event *find_cache_event(int type) static void python_process_event(union perf_event *pevent __unused, struct perf_sample *sample, + struct perf_evsel *evsel __unused, struct perf_session *session __unused, struct thread *thread) { diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index c68cf40764f9..caa224522fea 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -280,6 +280,15 @@ static int process_event_synth_stub(union perf_event *event __used, return 0; } +static int process_event_sample_stub(union perf_event *event __used, + struct perf_sample *sample __used, + struct perf_evsel *evsel __used, + struct perf_session *session __used) +{ + dump_printf(": unhandled!\n"); + return 0; +} + static int process_event_stub(union perf_event *event __used, struct perf_sample *sample __used, struct perf_session *session __used) @@ -303,7 +312,7 @@ static int process_finished_round(union perf_event *event, static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) { if (handler->sample == NULL) - handler->sample = process_event_stub; + handler->sample = process_event_sample_stub; if (handler->mmap == NULL) handler->mmap = process_event_stub; if (handler->comm == NULL) @@ -698,12 +707,19 @@ static int perf_session_deliver_event(struct perf_session *session, struct perf_event_ops *ops, u64 file_offset) { + struct perf_evsel *evsel; + dump_event(session, event, file_offset, sample); switch (event->header.type) { case PERF_RECORD_SAMPLE: dump_sample(session, event, sample); - return ops->sample(event, sample, session); + evsel = perf_evlist__id2evsel(session->evlist, sample->id); + if (evsel == NULL) { + ++session->hists.stats.nr_unknown_id; + return -1; + } + return ops->sample(event, sample, evsel, session); case PERF_RECORD_MMAP: return ops->mmap(event, sample, session); case PERF_RECORD_COMM: @@ -845,6 +861,11 @@ static void perf_session__warn_about_errors(const struct perf_session *session, session->hists.stats.nr_unknown_events); } + if (session->hists.stats.nr_unknown_id != 0) { + ui__warning("%u samples with id not present in the header\n", + session->hists.stats.nr_unknown_id); + } + if (session->hists.stats.nr_invalid_chains != 0) { ui__warning("Found invalid callchains!\n\n" "%u out of %u events were discarded for this reason.\n\n" diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index 0b3c9afecaa9..1ac481fc1100 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -55,8 +55,11 @@ struct perf_session { char filename[0]; }; +struct perf_evsel; struct perf_event_ops; +typedef int (*event_sample)(union perf_event *event, struct perf_sample *sample, + struct perf_evsel *evsel, struct perf_session *session); typedef int (*event_op)(union perf_event *self, struct perf_sample *sample, struct perf_session *session); typedef int (*event_synth_op)(union perf_event *self, @@ -65,8 +68,8 @@ typedef int (*event_op2)(union perf_event *self, struct perf_session *session, struct perf_event_ops *ops); struct perf_event_ops { - event_op sample, - mmap, + event_sample sample; + event_op mmap, comm, fork, exit, diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c index 66f4b78737ab..c9dcbec7d800 100644 --- a/tools/perf/util/trace-event-scripting.c +++ b/tools/perf/util/trace-event-scripting.c @@ -38,6 +38,7 @@ static int stop_script_unsupported(void) static void process_event_unsupported(union perf_event *event __unused, struct perf_sample *sample __unused, + struct perf_evsel *evsel __unused, struct perf_session *session __unused, struct thread *thread __unused) { diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h index b04da5722437..f674dda3363b 100644 --- a/tools/perf/util/trace-event.h +++ b/tools/perf/util/trace-event.h @@ -280,6 +280,7 @@ struct scripting_ops { int (*stop_script) (void); void (*process_event) (union perf_event *event, struct perf_sample *sample, + struct perf_evsel *evsel, struct perf_session *session, struct thread *thread); int (*generate_script) (const char *outfile); -- cgit v1.2.3 From b25114817a73bbd2b84ce9dba02ee1ef8989a947 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Tue, 22 Mar 2011 13:36:45 -0300 Subject: perf build-id: Add quirk to deal with perf.data file format breakage The a1645ce1 changeset: "perf: 'perf kvm' tool for monitoring guest performance from host" Added a field to struct build_id_event that broke the file format. Since the kernel build-id is the first entry, process the table using the old format if the well known '[kernel.kallsyms]' string for the kernel build-id has the first 4 characters chopped off (where the pid_t sits). Reported-by: Han Pingtian <phan@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Zhang Yanmin <yanmin_zhang@linux.intel.com> Cc: stable@kernel.org LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/header.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 56 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index e5230c0ef95b..93862a8027ea 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -695,13 +695,50 @@ out: return err; } +static int perf_header__read_build_ids_abi_quirk(struct perf_header *header, + int input, u64 offset, u64 size) +{ + struct perf_session *session = container_of(header, struct perf_session, header); + struct { + struct perf_event_header header; + u8 build_id[ALIGN(BUILD_ID_SIZE, sizeof(u64))]; + char filename[0]; + } old_bev; + struct build_id_event bev; + char filename[PATH_MAX]; + u64 limit = offset + size; + + while (offset < limit) { + ssize_t len; + + if (read(input, &old_bev, sizeof(old_bev)) != sizeof(old_bev)) + return -1; + + if (header->needs_swap) + perf_event_header__bswap(&old_bev.header); + + len = old_bev.header.size - sizeof(old_bev); + if (read(input, filename, len) != len) + return -1; + + bev.header = old_bev.header; + bev.pid = 0; + memcpy(bev.build_id, old_bev.build_id, sizeof(bev.build_id)); + __event_process_build_id(&bev, filename, session); + + offset += bev.header.size; + } + + return 0; +} + static int perf_header__read_build_ids(struct perf_header *header, int input, u64 offset, u64 size) { struct perf_session *session = container_of(header, struct perf_session, header); struct build_id_event bev; char filename[PATH_MAX]; - u64 limit = offset + size; + u64 limit = offset + size, orig_offset = offset; int err = -1; while (offset < limit) { @@ -716,6 +753,24 @@ static int perf_header__read_build_ids(struct perf_header *header, len = bev.header.size - sizeof(bev); if (read(input, filename, len) != len) goto out; + /* + * The a1645ce1 changeset: + * + * "perf: 'perf kvm' tool for monitoring guest performance from host" + * + * Added a field to struct build_id_event that broke the file + * format. + * + * Since the kernel build-id is the first entry, process the + * table using the old format if the well known + * '[kernel.kallsyms]' string for the kernel build-id has the + * first 4 characters chopped off (where the pid_t sits). + */ + if (memcmp(filename, "nel.kallsyms]", 13) == 0) { + if (lseek(input, orig_offset, SEEK_SET) == (off_t)-1) + return -1; + return perf_header__read_build_ids_abi_quirk(header, input, offset, size); + } __event_process_build_id(&bev, filename, session); -- cgit v1.2.3 From 60e4b10c5a27182bc8ce7435050a17cb61c94d00 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Tue, 22 Mar 2011 15:42:14 -0300 Subject: perf symbols: Look at .dynsym again if .symtab not found The original intent of the code was to repeat the search with want_symtab = 0. But as the code stands now, we never hit the "default" case of the switch statement. Which means we never repeat the search. Tested-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Reported-by: Arun Sharma <asharma@fb.com> Reported-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Dave Martin <dave.martin@linaro.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/symbol.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 651dbfe7f4f3..17df793c8924 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1486,7 +1486,9 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) * On the first pass, only load images if they have a full symtab. * Failing that, do a second pass where we accept .dynsym also */ - for (self->symtab_type = SYMTAB__BUILD_ID_CACHE, want_symtab = 1; + want_symtab = 1; +restart: + for (self->symtab_type = SYMTAB__BUILD_ID_CACHE; self->symtab_type != SYMTAB__NOT_FOUND; self->symtab_type++) { switch (self->symtab_type) { @@ -1536,17 +1538,7 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) snprintf(name, size, "%s%s", symbol_conf.symfs, self->long_name); break; - - default: - /* - * If we wanted a full symtab but no image had one, - * relax our requirements and repeat the search. - */ - if (want_symtab) { - want_symtab = 0; - self->symtab_type = SYMTAB__BUILD_ID_CACHE; - } else - continue; + default:; } /* Name is now the name of the next image to try */ @@ -1573,6 +1565,15 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) } } + /* + * If we wanted a full symtab but no image had one, + * relax our requirements and repeat the search. + */ + if (ret <= 0 && want_symtab) { + want_symtab = 0; + goto restart; + } + free(name); if (ret < 0 && strstr(self->name, " (deleted)") != NULL) return 0; -- cgit v1.2.3 From ddca6a31345cbea8c7c907e6b7e016339cbb6342 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven <geert@linux-m68k.org> Date: Mon, 21 Mar 2011 02:37:07 -0700 Subject: Input: tsc2005 - driver should depend on GENERIC_HARDIRQS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit drivers/input/touchscreen/tsc2005.c: In function ‘tsc2005_probe’: drivers/input/touchscreen/tsc2005.c:666: error: implicit declaration of function ‘set_irq_wake’ In addition, migrate from set_irq_wake() (marked "do not use" as of commit a0cd9ca2b907d7ee26575e7b63ac92dad768a75e ("genirq: Namespace cleanup")) to irq_set_irq_wake(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> --- drivers/input/touchscreen/Kconfig | 2 +- drivers/input/touchscreen/tsc2005.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 112ec55f2939..434fd800cd24 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -641,7 +641,7 @@ config TOUCHSCREEN_TOUCHIT213 config TOUCHSCREEN_TSC2005 tristate "TSC2005 based touchscreens" - depends on SPI_MASTER + depends on SPI_MASTER && GENERIC_HARDIRQS help Say Y here if you have a TSC2005 based touchscreen. diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c index 87420616efa4..437b9cdddf82 100644 --- a/drivers/input/touchscreen/tsc2005.c +++ b/drivers/input/touchscreen/tsc2005.c @@ -663,7 +663,7 @@ static int __devinit tsc2005_probe(struct spi_device *spi) goto err_remove_sysfs; } - set_irq_wake(spi->irq, 1); + irq_set_irq_wake(spi->irq, 1); return 0; err_remove_sysfs: -- cgit v1.2.3 From 903427955b9ffe1ca4b76c510089774c3b7a4a8a Mon Sep 17 00:00:00 2001 From: Aaro Koskinen <aaro.koskinen@nokia.com> Date: Wed, 23 Mar 2011 23:45:11 -0700 Subject: Input: tsc2005 - use relative jiffies to schedule the watchdog Use relative jiffies to schedule the watchdog. Otherwise it will run like a mad one. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> --- drivers/input/touchscreen/tsc2005.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c index 437b9cdddf82..2a9a7260fe8e 100644 --- a/drivers/input/touchscreen/tsc2005.c +++ b/drivers/input/touchscreen/tsc2005.c @@ -358,7 +358,7 @@ static void __tsc2005_enable(struct tsc2005 *ts) if (ts->esd_timeout && ts->set_reset) { ts->last_valid_interrupt = jiffies; schedule_delayed_work(&ts->esd_work, - round_jiffies(jiffies + + round_jiffies_relative( msecs_to_jiffies(ts->esd_timeout))); } @@ -512,7 +512,7 @@ static void tsc2005_esd_work(struct work_struct *work) out: /* re-arm the watchdog */ schedule_delayed_work(&ts->esd_work, - round_jiffies(jiffies + + round_jiffies_relative( msecs_to_jiffies(ts->esd_timeout))); mutex_unlock(&ts->mutex); } -- cgit v1.2.3 From a0fa2206f550066d6948d43c5401e973e5f7d320 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen <aaro.koskinen@nokia.com> Date: Wed, 23 Mar 2011 23:48:19 -0700 Subject: Input: tsc2005 - fix locking issue Commit 0b950d3 (Input: tsc2005 - add open/close) introduced a locking issue with the ESD watchdog: __tsc2005_disable() is calling cancel_delayed_work_sync() with mutex held, and the work also needs the same mutex. Fix the problem by using mutex_trylock() in tsc2005_esd_work(). If the mutex is taken, we know we are in the middle of disable or enable and the watchdog check can be skipped. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> --- drivers/input/touchscreen/tsc2005.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c index 2a9a7260fe8e..cbf0ff322676 100644 --- a/drivers/input/touchscreen/tsc2005.c +++ b/drivers/input/touchscreen/tsc2005.c @@ -477,7 +477,14 @@ static void tsc2005_esd_work(struct work_struct *work) int error; u16 r; - mutex_lock(&ts->mutex); + if (!mutex_trylock(&ts->mutex)) { + /* + * If the mutex is taken, it means that disable or enable is in + * progress. In that case just reschedule the work. If the work + * is not needed, it will be canceled by disable. + */ + goto reschedule; + } if (time_is_after_jiffies(ts->last_valid_interrupt + msecs_to_jiffies(ts->esd_timeout))) @@ -510,11 +517,12 @@ static void tsc2005_esd_work(struct work_struct *work) tsc2005_start_scan(ts); out: + mutex_unlock(&ts->mutex); +reschedule: /* re-arm the watchdog */ schedule_delayed_work(&ts->esd_work, round_jiffies_relative( msecs_to_jiffies(ts->esd_timeout))); - mutex_unlock(&ts->mutex); } static int tsc2005_open(struct input_dev *input) -- cgit v1.2.3 From ef352e7cdf714596f51ad18809404edeaa50e8fd Mon Sep 17 00:00:00 2001 From: Eric Dumazet <eric.dumazet@gmail.com> Date: Thu, 24 Mar 2011 00:13:14 -0700 Subject: net_sched: fix THROTTLED/RUNNING race commit fd245a4adb52 (net_sched: move TCQ_F_THROTTLED flag) added a race. qdisc_watchdog() is run from softirq, so special care should be taken or we can lose one state transition (THROTTLED/RUNNING) Prior to fd245a4adb52, we were manipulating q->flags (qdisc->flags &= ~TCQ_F_THROTTLED;) and this manipulation could only race with qdisc_warn_nonwc(). Since we want to avoid atomic ops in qdisc fast path - it was the meaning of commit 371121057607e (QDISC_STATE_RUNNING dont need atomic bit ops) - fix is to move THROTTLE bit into 'state' field, this one being manipulated with SMP and IRQ safe operations. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- include/net/sch_generic.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index a9505b6a18e3..b931f021d7ab 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -25,6 +25,7 @@ struct qdisc_rate_table { enum qdisc_state_t { __QDISC_STATE_SCHED, __QDISC_STATE_DEACTIVATED, + __QDISC_STATE_THROTTLED, }; /* @@ -32,7 +33,6 @@ enum qdisc_state_t { */ enum qdisc___state_t { __QDISC___STATE_RUNNING = 1, - __QDISC___STATE_THROTTLED = 2, }; struct qdisc_size_table { @@ -106,17 +106,17 @@ static inline void qdisc_run_end(struct Qdisc *qdisc) static inline bool qdisc_is_throttled(const struct Qdisc *qdisc) { - return (qdisc->__state & __QDISC___STATE_THROTTLED) ? true : false; + return test_bit(__QDISC_STATE_THROTTLED, &qdisc->state) ? true : false; } static inline void qdisc_throttled(struct Qdisc *qdisc) { - qdisc->__state |= __QDISC___STATE_THROTTLED; + set_bit(__QDISC_STATE_THROTTLED, &qdisc->state); } static inline void qdisc_unthrottled(struct Qdisc *qdisc) { - qdisc->__state &= ~__QDISC___STATE_THROTTLED; + clear_bit(__QDISC_STATE_THROTTLED, &qdisc->state); } struct Qdisc_class_ops { -- cgit v1.2.3 From f0c860246472248a534656d6cdbed5a36d1feb2e Mon Sep 17 00:00:00 2001 From: Chris Wilson <chris@chris-wilson.co.uk> Date: Wed, 23 Mar 2011 17:53:28 +0000 Subject: Revert "drm/i915: Don't save/restore hardware status page address register" This reverts commit a7a75c8f70d6f6a2f16c9f627f938bbee2d32718. There are two different variations on how Intel hardware addresses the "Hardware Status Page". One as a location in physical memory and the other as an offset into the virtual memory of the GPU, used in more recent chipsets. (The HWS itself is a cacheable region of memory which the GPU can write to without requiring CPU synchronisation, used for updating various details of hardware state, such as the position of the GPU head in the ringbuffer, the last breadcrumb seqno, etc). These two types of addresses were updated in different locations of code - one inline with the ringbuffer initialisation, and the other during device initialisation. (The HWS page is logically associated with the rings, and there is one HWS page per ring.) During resume, only the ringbuffers were being re-initialised along with the virtual HWS page, leaving the older physical address HWS untouched. This then caused a hang on the older gen3/4 (915GM, 945GM, 965GM) the first time we tried to synchronise the GPU as the breadcrumbs were never being updated. Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Reported-by: Jan Niehusmann <jan@gondor.com> Reported-and-tested-by: Justin P. Mattock <justinmattock@gmail.com> Reported-and-tested-by: Michael "brot" Groh <brot@minad.de> Cc: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com> --- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_suspend.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 449650545bb4..5004724ea57e 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -383,6 +383,7 @@ typedef struct drm_i915_private { u32 saveDSPACNTR; u32 saveDSPBCNTR; u32 saveDSPARB; + u32 saveHWS; u32 savePIPEACONF; u32 savePIPEBCONF; u32 savePIPEASRC; diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 7e992a8e9098..da474153a0a2 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -796,6 +796,9 @@ int i915_save_state(struct drm_device *dev) pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB); + /* Hardware status page */ + dev_priv->saveHWS = I915_READ(HWS_PGA); + i915_save_display(dev); /* Interrupt state */ @@ -842,6 +845,9 @@ int i915_restore_state(struct drm_device *dev) pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB); + /* Hardware status page */ + I915_WRITE(HWS_PGA, dev_priv->saveHWS); + i915_restore_display(dev); /* Interrupt state */ -- cgit v1.2.3 From 0f77a8d378254f27df4a114a5da67223af1fe93f Mon Sep 17 00:00:00 2001 From: Namhyung Kim <namhyung@gmail.com> Date: Thu, 24 Mar 2011 11:42:29 +0900 Subject: vsprintf: Introduce %pB format specifier The %pB format specifier is for stack backtrace. Its handler sprint_backtrace() does symbol lookup using (address-1) to ensure the address will not point outside of the function. If there is a tail-call to the function marked "noreturn", gcc optimized out the code after the call then causes saved return address points outside of the function (i.e. the start of the next function), so pollutes call trace somewhat. This patch adds the %pB printk mechanism that allows architecture call-trace printout functions to improve backtrace printouts. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-arch@vger.kernel.org LKML-Reference: <1300934550-21394-1-git-send-email-namhyung@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- include/linux/kallsyms.h | 7 +++++++ kernel/kallsyms.c | 44 +++++++++++++++++++++++++++++++++++++++++--- lib/vsprintf.c | 7 ++++++- 3 files changed, 54 insertions(+), 4 deletions(-) diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h index d8e9b3d1c23c..0df513b7a9f8 100644 --- a/include/linux/kallsyms.h +++ b/include/linux/kallsyms.h @@ -36,6 +36,7 @@ const char *kallsyms_lookup(unsigned long addr, /* Look up a kernel symbol and return it in a text buffer. */ extern int sprint_symbol(char *buffer, unsigned long address); +extern int sprint_backtrace(char *buffer, unsigned long address); /* Look up a kernel symbol and print it to the kernel messages. */ extern void __print_symbol(const char *fmt, unsigned long address); @@ -79,6 +80,12 @@ static inline int sprint_symbol(char *buffer, unsigned long addr) return 0; } +static inline int sprint_backtrace(char *buffer, unsigned long addr) +{ + *buffer = '\0'; + return 0; +} + static inline int lookup_symbol_name(unsigned long addr, char *symname) { return -ERANGE; diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c index 6f6d091b5757..59e879929b17 100644 --- a/kernel/kallsyms.c +++ b/kernel/kallsyms.c @@ -342,13 +342,15 @@ int lookup_symbol_attrs(unsigned long addr, unsigned long *size, } /* Look up a kernel symbol and return it in a text buffer. */ -int sprint_symbol(char *buffer, unsigned long address) +static int __sprint_symbol(char *buffer, unsigned long address, + int symbol_offset) { char *modname; const char *name; unsigned long offset, size; int len; + address += symbol_offset; name = kallsyms_lookup(address, &size, &offset, &modname, buffer); if (!name) return sprintf(buffer, "0x%lx", address); @@ -357,17 +359,53 @@ int sprint_symbol(char *buffer, unsigned long address) strcpy(buffer, name); len = strlen(buffer); buffer += len; + offset -= symbol_offset; if (modname) - len += sprintf(buffer, "+%#lx/%#lx [%s]", - offset, size, modname); + len += sprintf(buffer, "+%#lx/%#lx [%s]", offset, size, modname); else len += sprintf(buffer, "+%#lx/%#lx", offset, size); return len; } + +/** + * sprint_symbol - Look up a kernel symbol and return it in a text buffer + * @buffer: buffer to be stored + * @address: address to lookup + * + * This function looks up a kernel symbol with @address and stores its name, + * offset, size and module name to @buffer if possible. If no symbol was found, + * just saves its @address as is. + * + * This function returns the number of bytes stored in @buffer. + */ +int sprint_symbol(char *buffer, unsigned long address) +{ + return __sprint_symbol(buffer, address, 0); +} + EXPORT_SYMBOL_GPL(sprint_symbol); +/** + * sprint_backtrace - Look up a backtrace symbol and return it in a text buffer + * @buffer: buffer to be stored + * @address: address to lookup + * + * This function is for stack backtrace and does the same thing as + * sprint_symbol() but with modified/decreased @address. If there is a + * tail-call to the function marked "noreturn", gcc optimized out code after + * the call so that the stack-saved return address could point outside of the + * caller. This function ensures that kallsyms will find the original caller + * by decreasing @address. + * + * This function returns the number of bytes stored in @buffer. + */ +int sprint_backtrace(char *buffer, unsigned long address) +{ + return __sprint_symbol(buffer, address, -1); +} + /* Look up a kernel symbol and print it to the kernel messages. */ void __print_symbol(const char *fmt, unsigned long address) { diff --git a/lib/vsprintf.c b/lib/vsprintf.c index d3023df8477f..d9e01fc3168e 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -574,7 +574,9 @@ char *symbol_string(char *buf, char *end, void *ptr, unsigned long value = (unsigned long) ptr; #ifdef CONFIG_KALLSYMS char sym[KSYM_SYMBOL_LEN]; - if (ext != 'f' && ext != 's') + if (ext == 'B') + sprint_backtrace(sym, value); + else if (ext != 'f' && ext != 's') sprint_symbol(sym, value); else kallsyms_lookup(value, NULL, NULL, NULL, sym); @@ -949,6 +951,7 @@ int kptr_restrict = 1; * - 'f' For simple symbolic function names without offset * - 'S' For symbolic direct pointers with offset * - 's' For symbolic direct pointers without offset + * - 'B' For backtraced symbolic direct pointers with offset * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref] * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201] * - 'M' For a 6-byte MAC address, it prints the address in the @@ -1008,6 +1011,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, /* Fallthrough */ case 'S': case 's': + case 'B': return symbol_string(buf, end, ptr, spec, *fmt); case 'R': case 'r': @@ -1279,6 +1283,7 @@ qualifier: * %ps output the name of a text symbol without offset * %pF output the name of a function pointer with its offset * %pf output the name of a function pointer without its offset + * %pB output the name of a backtrace symbol with its offset * %pR output the address range in a struct resource with decoded flags * %pr output the address range in a struct resource with raw flags * %pM output a 6-byte MAC address with colons -- cgit v1.2.3 From 71f9e59800e5ad4e6b683348424c9fe54306cd43 Mon Sep 17 00:00:00 2001 From: Namhyung Kim <namhyung@gmail.com> Date: Thu, 24 Mar 2011 11:42:30 +0900 Subject: x86, dumpstack: Use %pB format specifier for stack trace Improve noreturn function entries in call traces: Before: Call Trace: [<ffffffff812a8502>] panic+0x8c/0x18d [<ffffffffa000012a>] deep01+0x0/0x38 [test_panic] <--- bad [<ffffffff81104666>] proc_file_write+0x73/0x8d [<ffffffff811000b3>] proc_reg_write+0x8d/0xac [<ffffffff810c7d32>] vfs_write+0xa1/0xc5 [<ffffffff810c7e0f>] sys_write+0x45/0x6c [<ffffffff8f02943b>] system_call_fastpath+0x16/0x1b After: Call Trace: [<ffffffff812bce69>] panic+0x8c/0x18d [<ffffffffa000012a>] panic_write+0x20/0x20 [test_panic] <--- good [<ffffffff81115fab>] proc_file_write+0x73/0x8d [<ffffffff81111a5f>] proc_reg_write+0x8d/0xac [<ffffffff810d90ee>] vfs_write+0xa1/0xc5 [<ffffffff810d91cb>] sys_write+0x45/0x6c [<ffffffff812c07fb>] system_call_fastpath+0x16/0x1b Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <1300934550-21394-2-git-send-email-namhyung@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/dumpstack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 999e2793590b..24d0479025f9 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -27,7 +27,7 @@ static int die_counter; void printk_address(unsigned long address, int reliable) { - printk(" [<%p>] %s%pS\n", (void *) address, + printk(" [<%p>] %s%pB\n", (void *) address, reliable ? "" : "? ", (void *) address); } -- cgit v1.2.3 From fafcf94e2b5732d1e13b440291c53115d2b172e9 Mon Sep 17 00:00:00 2001 From: Alex Deucher <alexdeucher@gmail.com> Date: Wed, 23 Mar 2011 08:10:10 +0000 Subject: drm/radeon/kms: fix hardcoded EDID handling On some servers there is a hardcoded EDID provided in the vbios so that the driver will always see a display connected even if something like a KVM prevents traditional means like DDC or load detection from working properly. Also most server boards with DVI are not actually DVI, but DVO connected to a virtual KVM service processor. If we fail to detect a monitor via DDC or load detection and a hardcoded EDID is available, use it. Additionally, when using the hardcoded EDID, use a copy of it rather than the actual one stored in the driver as the detect() and get_modes() functions may free it if DDC is successful. This fixes the virtual KVM on several internal servers. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> --- drivers/gpu/drm/radeon/radeon_combios.c | 21 ++++++++++++++++----- drivers/gpu/drm/radeon/radeon_connectors.c | 30 ++++++++++++++++++++++++++++-- drivers/gpu/drm/radeon/radeon_mode.h | 1 + 3 files changed, 45 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index cf7c8d5b4ec2..cf602e2d0718 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -448,7 +448,7 @@ static uint16_t combios_get_table_offset(struct drm_device *dev, bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) { - int edid_info; + int edid_info, size; struct edid *edid; unsigned char *raw; edid_info = combios_get_table_offset(rdev->ddev, COMBIOS_HARDCODED_EDID_TABLE); @@ -456,11 +456,12 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) return false; raw = rdev->bios + edid_info; - edid = kmalloc(EDID_LENGTH * (raw[0x7e] + 1), GFP_KERNEL); + size = EDID_LENGTH * (raw[0x7e] + 1); + edid = kmalloc(size, GFP_KERNEL); if (edid == NULL) return false; - memcpy((unsigned char *)edid, raw, EDID_LENGTH * (raw[0x7e] + 1)); + memcpy((unsigned char *)edid, raw, size); if (!drm_edid_is_valid(edid)) { kfree(edid); @@ -468,6 +469,7 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) } rdev->mode_info.bios_hardcoded_edid = edid; + rdev->mode_info.bios_hardcoded_edid_size = size; return true; } @@ -475,8 +477,17 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) struct edid * radeon_bios_get_hardcoded_edid(struct radeon_device *rdev) { - if (rdev->mode_info.bios_hardcoded_edid) - return rdev->mode_info.bios_hardcoded_edid; + struct edid *edid; + + if (rdev->mode_info.bios_hardcoded_edid) { + edid = kmalloc(rdev->mode_info.bios_hardcoded_edid_size, GFP_KERNEL); + if (edid) { + memcpy((unsigned char *)edid, + (unsigned char *)rdev->mode_info.bios_hardcoded_edid, + rdev->mode_info.bios_hardcoded_edid_size); + return edid; + } + } return NULL; } diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 3f3c9aac46cc..a1866738a657 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -629,6 +629,8 @@ static int radeon_vga_mode_valid(struct drm_connector *connector, static enum drm_connector_status radeon_vga_detect(struct drm_connector *connector, bool force) { + struct drm_device *dev = connector->dev; + struct radeon_device *rdev = dev->dev_private; struct radeon_connector *radeon_connector = to_radeon_connector(connector); struct drm_encoder *encoder; struct drm_encoder_helper_funcs *encoder_funcs; @@ -679,6 +681,17 @@ radeon_vga_detect(struct drm_connector *connector, bool force) if (ret == connector_status_connected) ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true); + + /* RN50 and some RV100 asics in servers often have a hardcoded EDID in the + * vbios to deal with KVMs. If we have one and are not able to detect a monitor + * by other means, assume the CRT is connected and use that EDID. + */ + if ((!rdev->is_atom_bios) && + (ret == connector_status_disconnected) && + rdev->mode_info.bios_hardcoded_edid_size) { + ret = connector_status_connected; + } + radeon_connector_update_scratch_regs(connector, ret); return ret; } @@ -790,6 +803,8 @@ static int radeon_dvi_get_modes(struct drm_connector *connector) static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connector, bool force) { + struct drm_device *dev = connector->dev; + struct radeon_device *rdev = dev->dev_private; struct radeon_connector *radeon_connector = to_radeon_connector(connector); struct drm_encoder *encoder = NULL; struct drm_encoder_helper_funcs *encoder_funcs; @@ -829,8 +844,6 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) * you don't really know what's connected to which port as both are digital. */ if (radeon_connector->shared_ddc && (ret == connector_status_connected)) { - struct drm_device *dev = connector->dev; - struct radeon_device *rdev = dev->dev_private; struct drm_connector *list_connector; struct radeon_connector *list_radeon_connector; list_for_each_entry(list_connector, &dev->mode_config.connector_list, head) { @@ -895,6 +908,19 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true); } + /* RN50 and some RV100 asics in servers often have a hardcoded EDID in the + * vbios to deal with KVMs. If we have one and are not able to detect a monitor + * by other means, assume the DFP is connected and use that EDID. In most + * cases the DVI port is actually a virtual KVM port connected to the service + * processor. + */ + if ((!rdev->is_atom_bios) && + (ret == connector_status_disconnected) && + rdev->mode_info.bios_hardcoded_edid_size) { + radeon_connector->use_digital = true; + ret = connector_status_connected; + } + out: /* updated in get modes as well since we need to know if it's analog or digital */ radeon_connector_update_scratch_regs(connector, ret); diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index 5067d18d0009..1ae6846de827 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -239,6 +239,7 @@ struct radeon_mode_info { struct drm_property *underscan_vborder_property; /* hardcoded DFP edid from BIOS */ struct edid *bios_hardcoded_edid; + int bios_hardcoded_edid_size; /* pointer to fbdev info structure */ struct radeon_fbdev *rfbdev; -- cgit v1.2.3 From 1783e4bf6f4e5c3b13c09aff24da7dcc69fb3e2f Mon Sep 17 00:00:00 2001 From: Thomas Renninger <trenn@suse.de> Date: Wed, 23 Mar 2011 15:14:09 +0000 Subject: drm radeon: Return -EINVAL on wrong pm sysfs access Throw an error if someone tries to fill this with wrong data, instead of simply ignoring the input. Now you get: echo hello >/sys/../power_method -bash: echo: write error: Invalid argument Signed-off-by: Thomas Renninger <trenn@suse.de> CC: Alexander.Deucher@amd.com CC: dri-devel@lists.freedesktop.org Reviewed-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com> --- drivers/gpu/drm/radeon/radeon_pm.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 2aed03bde4b2..08de669e025a 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -365,12 +365,14 @@ static ssize_t radeon_set_pm_profile(struct device *dev, else if (strncmp("high", buf, strlen("high")) == 0) rdev->pm.profile = PM_PROFILE_HIGH; else { - DRM_ERROR("invalid power profile!\n"); + count = -EINVAL; goto fail; } radeon_pm_update_profile(rdev); radeon_pm_set_clocks(rdev); - } + } else + count = -EINVAL; + fail: mutex_unlock(&rdev->pm.mutex); @@ -413,7 +415,7 @@ static ssize_t radeon_set_pm_method(struct device *dev, mutex_unlock(&rdev->pm.mutex); cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work); } else { - DRM_ERROR("invalid power method!\n"); + count = -EINVAL; goto fail; } radeon_pm_compute_clocks(rdev); -- cgit v1.2.3 From 51eab416c9b4b3ed16553d405ec4a5f67daa34cf Mon Sep 17 00:00:00 2001 From: Dave Airlie <airlied@redhat.com> Date: Thu, 24 Mar 2011 20:54:35 +1000 Subject: drm/vblank: update recently added vbl interface to be more future proof. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This makes the interface a bit cleaner by leaving a single gap in the vblank bit space instead of creating two gaps. Suggestions from Michel on mailing list/irc. Reviewed-by: Michel Dänzer <michel@daenzer.net> Signed-off-by: Dave Airlie <airlied@redhat.com> --- drivers/gpu/drm/drm_ioctl.c | 2 +- include/drm/drm.h | 7 ++++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 3617b4c4bb57..904d7e9c8e47 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -280,7 +280,7 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv) if (dev->driver->dumb_create) req->value = 1; break; - case DRM_CAP_HIGH_CRTC: + case DRM_CAP_VBLANK_HIGH_CRTC: req->value = 1; break; default: diff --git a/include/drm/drm.h b/include/drm/drm.h index 99cd07433fab..4be33b4ca2f8 100644 --- a/include/drm/drm.h +++ b/include/drm/drm.h @@ -463,14 +463,15 @@ struct drm_irq_busid { enum drm_vblank_seq_type { _DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */ _DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */ + /* bits 1-6 are reserved for high crtcs */ + _DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e, _DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */ _DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */ _DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */ _DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */ _DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking, unsupported */ }; -#define _DRM_VBLANK_HIGH_CRTC_SHIFT 16 -#define _DRM_VBLANK_HIGH_CRTC_MASK 0x001F0000 +#define _DRM_VBLANK_HIGH_CRTC_SHIFT 1 #define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE) #define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \ @@ -755,7 +756,7 @@ struct drm_event_vblank { }; #define DRM_CAP_DUMB_BUFFER 0x1 -#define DRM_CAP_HIGH_CRTC 0x2 +#define DRM_CAP_VBLANK_HIGH_CRTC 0x2 /* typedef area */ #ifndef __KERNEL__ -- cgit v1.2.3 From 024d37e95ec4a7ccc256973ab2feab01f4fbdd2d Mon Sep 17 00:00:00 2001 From: Milan Broz <mbroz@redhat.com> Date: Thu, 24 Mar 2011 13:52:14 +0000 Subject: dm: fix opening log and cow devices for read only tables If a table is read-only, also open any log and cow devices it uses read-only. Previously, even read-only devices were opened read-write internally. After patch 75f1dc0d076d1c1168f2115f1941ea627d38bd5a block: check bdev_read_only() from blkdev_get() was applied, loading such tables began to fail. The patch was reverted by e51900f7d38cbcfb481d84567fd92540e7e1d23a block: revert block_dev read-only check but this patch fixes this part of the code to work with the original patch. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> --- drivers/md/dm-log.c | 2 +- drivers/md/dm-snap.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c index 6951536ea29c..8e8a868ca857 100644 --- a/drivers/md/dm-log.c +++ b/drivers/md/dm-log.c @@ -543,7 +543,7 @@ static int disk_ctr(struct dm_dirty_log *log, struct dm_target *ti, return -EINVAL; } - r = dm_get_device(ti, argv[0], FMODE_READ | FMODE_WRITE, &dev); + r = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &dev); if (r) return r; diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index fdde53cd12b7..a2d330942cb2 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -1080,7 +1080,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) argv++; argc--; - r = dm_get_device(ti, cow_path, FMODE_READ | FMODE_WRITE, &s->cow); + r = dm_get_device(ti, cow_path, dm_table_get_mode(ti->table), &s->cow); if (r) { ti->error = "Cannot get COW device"; goto bad_cow; -- cgit v1.2.3 From 3407ef5262b55ca5d7139d2b555ef792fe531eec Mon Sep 17 00:00:00 2001 From: Josef Bacik <josef@redhat.com> Date: Thu, 24 Mar 2011 13:54:24 +0000 Subject: dm: add flakey target This target is the same as the linear target except that it returns I/O errors periodically. It's been found useful in simulating failing devices for testing purposes. I needed a dm target to do some failure testing on btrfs's raid code, and Mike pointed me at this. Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> --- Documentation/device-mapper/dm-flakey.txt | 17 +++ drivers/md/Kconfig | 6 + drivers/md/Makefile | 1 + drivers/md/dm-flakey.c | 212 ++++++++++++++++++++++++++++++ 4 files changed, 236 insertions(+) create mode 100644 Documentation/device-mapper/dm-flakey.txt create mode 100644 drivers/md/dm-flakey.c diff --git a/Documentation/device-mapper/dm-flakey.txt b/Documentation/device-mapper/dm-flakey.txt new file mode 100644 index 000000000000..c8efdfd19a65 --- /dev/null +++ b/Documentation/device-mapper/dm-flakey.txt @@ -0,0 +1,17 @@ +dm-flakey +========= + +This target is the same as the linear target except that it returns I/O +errors periodically. It's been found useful in simulating failing +devices for testing purposes. + +Starting from the time the table is loaded, the device is available for +<up interval> seconds, then returns errors for <down interval> seconds, +and then this cycle repeats. + +Parameters: <dev path> <offset> <up interval> <down interval> + <dev path>: Full pathname to the underlying block-device, or a + "major:minor" device-number. + <offset>: Starting sector within the device. + <up interval>: Number of seconds device is available. + <down interval>: Number of seconds device returns errors. diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 98d9ec85e0eb..8420129fc5ee 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -327,4 +327,10 @@ config DM_UEVENT ---help--- Generate udev events for DM events. +config DM_FLAKEY + tristate "Flakey target (EXPERIMENTAL)" + depends on BLK_DEV_DM && EXPERIMENTAL + ---help--- + A target that intermittently fails I/O for debugging purposes. + endif # MD diff --git a/drivers/md/Makefile b/drivers/md/Makefile index d0138606c2e8..448838b1f92a 100644 --- a/drivers/md/Makefile +++ b/drivers/md/Makefile @@ -29,6 +29,7 @@ obj-$(CONFIG_BLK_DEV_MD) += md-mod.o obj-$(CONFIG_BLK_DEV_DM) += dm-mod.o obj-$(CONFIG_DM_CRYPT) += dm-crypt.o obj-$(CONFIG_DM_DELAY) += dm-delay.o +obj-$(CONFIG_DM_FLAKEY) += dm-flakey.o obj-$(CONFIG_DM_MULTIPATH) += dm-multipath.o dm-round-robin.o obj-$(CONFIG_DM_MULTIPATH_QL) += dm-queue-length.o obj-$(CONFIG_DM_MULTIPATH_ST) += dm-service-time.o diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c new file mode 100644 index 000000000000..ea790623c30b --- /dev/null +++ b/drivers/md/dm-flakey.c @@ -0,0 +1,212 @@ +/* + * Copyright (C) 2003 Sistina Software (UK) Limited. + * Copyright (C) 2004, 2010 Red Hat, Inc. All rights reserved. + * + * This file is released under the GPL. + */ + +#include <linux/device-mapper.h> + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/blkdev.h> +#include <linux/bio.h> +#include <linux/slab.h> + +#define DM_MSG_PREFIX "flakey" + +/* + * Flakey: Used for testing only, simulates intermittent, + * catastrophic device failure. + */ +struct flakey_c { + struct dm_dev *dev; + unsigned long start_time; + sector_t start; + unsigned up_interval; + unsigned down_interval; +}; + +/* + * Construct a flakey mapping: <dev_path> <offset> <up interval> <down interval> + */ +static int flakey_ctr(struct dm_target *ti, unsigned int argc, char **argv) +{ + struct flakey_c *fc; + unsigned long long tmp; + + if (argc != 4) { + ti->error = "dm-flakey: Invalid argument count"; + return -EINVAL; + } + + fc = kmalloc(sizeof(*fc), GFP_KERNEL); + if (!fc) { + ti->error = "dm-flakey: Cannot allocate linear context"; + return -ENOMEM; + } + fc->start_time = jiffies; + + if (sscanf(argv[1], "%llu", &tmp) != 1) { + ti->error = "dm-flakey: Invalid device sector"; + goto bad; + } + fc->start = tmp; + + if (sscanf(argv[2], "%u", &fc->up_interval) != 1) { + ti->error = "dm-flakey: Invalid up interval"; + goto bad; + } + + if (sscanf(argv[3], "%u", &fc->down_interval) != 1) { + ti->error = "dm-flakey: Invalid down interval"; + goto bad; + } + + if (!(fc->up_interval + fc->down_interval)) { + ti->error = "dm-flakey: Total (up + down) interval is zero"; + goto bad; + } + + if (fc->up_interval + fc->down_interval < fc->up_interval) { + ti->error = "dm-flakey: Interval overflow"; + goto bad; + } + + if (dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &fc->dev)) { + ti->error = "dm-flakey: Device lookup failed"; + goto bad; + } + + ti->num_flush_requests = 1; + ti->private = fc; + return 0; + +bad: + kfree(fc); + return -EINVAL; +} + +static void flakey_dtr(struct dm_target *ti) +{ + struct flakey_c *fc = ti->private; + + dm_put_device(ti, fc->dev); + kfree(fc); +} + +static sector_t flakey_map_sector(struct dm_target *ti, sector_t bi_sector) +{ + struct flakey_c *fc = ti->private; + + return fc->start + (bi_sector - ti->begin); +} + +static void flakey_map_bio(struct dm_target *ti, struct bio *bio) +{ + struct flakey_c *fc = ti->private; + + bio->bi_bdev = fc->dev->bdev; + if (bio_sectors(bio)) + bio->bi_sector = flakey_map_sector(ti, bio->bi_sector); +} + +static int flakey_map(struct dm_target *ti, struct bio *bio, + union map_info *map_context) +{ + struct flakey_c *fc = ti->private; + unsigned elapsed; + + /* Are we alive ? */ + elapsed = (jiffies - fc->start_time) / HZ; + if (elapsed % (fc->up_interval + fc->down_interval) >= fc->up_interval) + return -EIO; + + flakey_map_bio(ti, bio); + + return DM_MAPIO_REMAPPED; +} + +static int flakey_status(struct dm_target *ti, status_type_t type, + char *result, unsigned int maxlen) +{ + struct flakey_c *fc = ti->private; + + switch (type) { + case STATUSTYPE_INFO: + result[0] = '\0'; + break; + + case STATUSTYPE_TABLE: + snprintf(result, maxlen, "%s %llu %u %u", fc->dev->name, + (unsigned long long)fc->start, fc->up_interval, + fc->down_interval); + break; + } + return 0; +} + +static int flakey_ioctl(struct dm_target *ti, unsigned int cmd, unsigned long arg) +{ + struct flakey_c *fc = ti->private; + + return __blkdev_driver_ioctl(fc->dev->bdev, fc->dev->mode, cmd, arg); +} + +static int flakey_merge(struct dm_target *ti, struct bvec_merge_data *bvm, + struct bio_vec *biovec, int max_size) +{ + struct flakey_c *fc = ti->private; + struct request_queue *q = bdev_get_queue(fc->dev->bdev); + + if (!q->merge_bvec_fn) + return max_size; + + bvm->bi_bdev = fc->dev->bdev; + bvm->bi_sector = flakey_map_sector(ti, bvm->bi_sector); + + return min(max_size, q->merge_bvec_fn(q, bvm, biovec)); +} + +static int flakey_iterate_devices(struct dm_target *ti, iterate_devices_callout_fn fn, void *data) +{ + struct flakey_c *fc = ti->private; + + return fn(ti, fc->dev, fc->start, ti->len, data); +} + +static struct target_type flakey_target = { + .name = "flakey", + .version = {1, 1, 0}, + .module = THIS_MODULE, + .ctr = flakey_ctr, + .dtr = flakey_dtr, + .map = flakey_map, + .status = flakey_status, + .ioctl = flakey_ioctl, + .merge = flakey_merge, + .iterate_devices = flakey_iterate_devices, +}; + +static int __init dm_flakey_init(void) +{ + int r = dm_register_target(&flakey_target); + + if (r < 0) + DMERR("register failed %d", r); + + return r; +} + +static void __exit dm_flakey_exit(void) +{ + dm_unregister_target(&flakey_target); +} + +/* Module hooks */ +module_init(dm_flakey_init); +module_exit(dm_flakey_exit); + +MODULE_DESCRIPTION(DM_NAME " flakey target"); +MODULE_AUTHOR("Joe Thornber <dm-devel@redhat.com>"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From de8be5ac70f50a2340f24fd769a1aafa5a51ae34 Mon Sep 17 00:00:00 2001 From: Milan Broz <mbroz@redhat.com> Date: Thu, 24 Mar 2011 13:54:27 +0000 Subject: dm crypt: wipe keys string immediately after key is set Always wipe the original copy of the key after processing it in crypt_set_key(). Signed-off-by: Milan Broz <mbroz@redhat.com> Acked-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> --- drivers/md/dm-crypt.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 4e054bd91664..7dcae0d74db7 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -1331,20 +1331,29 @@ static int crypt_setkey_allcpus(struct crypt_config *cc) static int crypt_set_key(struct crypt_config *cc, char *key) { + int r = -EINVAL; + int key_string_len = strlen(key); + /* The key size may not be changed. */ - if (cc->key_size != (strlen(key) >> 1)) - return -EINVAL; + if (cc->key_size != (key_string_len >> 1)) + goto out; /* Hyphen (which gives a key_size of zero) means there is no key. */ if (!cc->key_size && strcmp(key, "-")) - return -EINVAL; + goto out; if (cc->key_size && crypt_decode_key(cc->key, key, cc->key_size) < 0) - return -EINVAL; + goto out; set_bit(DM_CRYPT_KEY_VALID, &cc->flags); - return crypt_setkey_allcpus(cc); + r = crypt_setkey_allcpus(cc); + +out: + /* Hex key string not needed after here, so wipe it. */ + memset(key, '0', key_string_len); + + return r; } static int crypt_wipe_key(struct crypt_config *cc) -- cgit v1.2.3 From 6bb43b5d1f54fb44c0408d86d5e71e4405a3ebe1 Mon Sep 17 00:00:00 2001 From: Milan Broz <mbroz@redhat.com> Date: Thu, 24 Mar 2011 13:54:28 +0000 Subject: dm ioctl: prepare for crypt key wiping Prepare code for implementing buffer wipe flag. No functional change in this patch. Signed-off-by: Milan Broz <mbroz@redhat.com> Acked-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> --- drivers/md/dm-ioctl.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 6d12775a1061..3a8f6a0e6eb5 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1501,11 +1501,6 @@ static int check_version(unsigned int cmd, struct dm_ioctl __user *user) return r; } -static void free_params(struct dm_ioctl *param) -{ - vfree(param); -} - static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl **param) { struct dm_ioctl tmp, *dmi; @@ -1520,13 +1515,15 @@ static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl **param) if (!dmi) return -ENOMEM; - if (copy_from_user(dmi, user, tmp.data_size)) { - vfree(dmi); - return -EFAULT; - } + if (copy_from_user(dmi, user, tmp.data_size)) + goto bad; *param = dmi; return 0; + +bad: + vfree(dmi); + return -EFAULT; } static int validate_params(uint cmd, struct dm_ioctl *param) @@ -1564,7 +1561,7 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user) unsigned int cmd; struct dm_ioctl *uninitialized_var(param); ioctl_fn fn = NULL; - size_t param_size; + size_t input_param_size; /* only root can play with this */ if (!capable(CAP_SYS_ADMIN)) @@ -1605,6 +1602,7 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user) * Copy the parameters into kernel space. */ r = copy_params(user, ¶m); + input_param_size = param->data_size; current->flags &= ~PF_MEMALLOC; @@ -1615,9 +1613,8 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user) if (r) goto out; - param_size = param->data_size; param->data_size = sizeof(*param); - r = fn(param, param_size); + r = fn(param, input_param_size); /* * Copy the results back to userland. @@ -1625,8 +1622,8 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user) if (!r && copy_to_user(user, param, param->data_size)) r = -EFAULT; - out: - free_params(param); +out: + vfree(param); return r; } -- cgit v1.2.3 From f868120549fc1664b2c451d4b9882a363928c698 Mon Sep 17 00:00:00 2001 From: Milan Broz <mbroz@redhat.com> Date: Thu, 24 Mar 2011 13:54:30 +0000 Subject: dm ioctl: add flag to wipe buffers for secure data Add DM_SECURE_DATA_FLAG which userspace can use to ensure that all buffers allocated for dm-ioctl are wiped immediately after use. The user buffer is wiped as well (we do not want to keep and return sensitive data back to userspace if the flag is set). Wiping is useful for cryptsetup to ensure that the key is present in memory only in defined places and only for the time needed. (For crypt, key can be present in table during load or table status, wait and message commands). Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> --- drivers/md/dm-ioctl.c | 23 +++++++++++++++++++++-- include/linux/dm-ioctl.h | 12 +++++++++--- 2 files changed, 30 insertions(+), 5 deletions(-) diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 3a8f6a0e6eb5..4cacdad2270a 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1504,6 +1504,7 @@ static int check_version(unsigned int cmd, struct dm_ioctl __user *user) static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl **param) { struct dm_ioctl tmp, *dmi; + int secure_data; if (copy_from_user(&tmp, user, sizeof(tmp) - sizeof(tmp.data))) return -EFAULT; @@ -1511,17 +1512,28 @@ static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl **param) if (tmp.data_size < (sizeof(tmp) - sizeof(tmp.data))) return -EINVAL; + secure_data = tmp.flags & DM_SECURE_DATA_FLAG; + dmi = vmalloc(tmp.data_size); - if (!dmi) + if (!dmi) { + if (secure_data && clear_user(user, tmp.data_size)) + return -EFAULT; return -ENOMEM; + } if (copy_from_user(dmi, user, tmp.data_size)) goto bad; + /* Wipe the user buffer so we do not return it to userspace */ + if (secure_data && clear_user(user, tmp.data_size)) + goto bad; + *param = dmi; return 0; bad: + if (secure_data) + memset(dmi, 0, tmp.data_size); vfree(dmi); return -EFAULT; } @@ -1531,6 +1543,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param) /* Always clear this flag */ param->flags &= ~DM_BUFFER_FULL_FLAG; param->flags &= ~DM_UEVENT_GENERATED_FLAG; + param->flags &= ~DM_SECURE_DATA_FLAG; /* Ignores parameters */ if (cmd == DM_REMOVE_ALL_CMD || @@ -1558,6 +1571,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param) static int ctl_ioctl(uint command, struct dm_ioctl __user *user) { int r = 0; + int wipe_buffer; unsigned int cmd; struct dm_ioctl *uninitialized_var(param); ioctl_fn fn = NULL; @@ -1602,13 +1616,15 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user) * Copy the parameters into kernel space. */ r = copy_params(user, ¶m); - input_param_size = param->data_size; current->flags &= ~PF_MEMALLOC; if (r) return r; + input_param_size = param->data_size; + wipe_buffer = param->flags & DM_SECURE_DATA_FLAG; + r = validate_params(cmd, param); if (r) goto out; @@ -1623,6 +1639,9 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user) r = -EFAULT; out: + if (wipe_buffer) + memset(param, 0, input_param_size); + vfree(param); return r; } diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h index 78bbf47bbb96..3708455ee6c3 100644 --- a/include/linux/dm-ioctl.h +++ b/include/linux/dm-ioctl.h @@ -267,9 +267,9 @@ enum { #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) #define DM_VERSION_MAJOR 4 -#define DM_VERSION_MINOR 19 -#define DM_VERSION_PATCHLEVEL 1 -#define DM_VERSION_EXTRA "-ioctl (2011-01-07)" +#define DM_VERSION_MINOR 20 +#define DM_VERSION_PATCHLEVEL 0 +#define DM_VERSION_EXTRA "-ioctl (2011-02-02)" /* Status bits */ #define DM_READONLY_FLAG (1 << 0) /* In/Out */ @@ -328,4 +328,10 @@ enum { */ #define DM_UUID_FLAG (1 << 14) /* In */ +/* + * If set, all buffers are wiped after use. Use when sending + * or requesting sensitive data such as an encryption key. + */ +#define DM_SECURE_DATA_FLAG (1 << 15) /* In */ + #endif /* _LINUX_DM_IOCTL_H */ -- cgit v1.2.3 From 19040c0bc8efcb767221d8ef7bb9c32ff0586179 Mon Sep 17 00:00:00 2001 From: Mike Snitzer <snitzer@redhat.com> Date: Thu, 24 Mar 2011 13:54:31 +0000 Subject: dm mpath: fail message ioctl if specified path is not valid Fail the reinstate_path and fail_path message ioctl if the specified path is not valid. The message ioctl would succeed for the 'reinistate_path' and 'fail_path' messages even if action was not taken because the specified device was not a valid path of the multipath device. Before, when /dev/vdb is not a path of mpathb: $ dmsetup message mpathb 0 reinstate_path /dev/vdb $ echo $? 0 After: $ dmsetup message mpathb 0 reinstate_path /dev/vdb device-mapper: message ioctl failed: Invalid argument Command failed $ echo $? 1 Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> --- drivers/md/dm-mpath.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 4b0b63c290a6..52f0de394632 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -1065,7 +1065,7 @@ out: static int action_dev(struct multipath *m, struct dm_dev *dev, action_fn action) { - int r = 0; + int r = -EINVAL; struct pgpath *pgpath; struct priority_group *pg; @@ -1669,7 +1669,7 @@ out: *---------------------------------------------------------------*/ static struct target_type multipath_target = { .name = "multipath", - .version = {1, 2, 0}, + .version = {1, 3, 0}, .module = THIS_MODULE, .ctr = multipath_ctr, .dtr = multipath_dtr, -- cgit v1.2.3 From a490a07a67b7a37f588021410e06b721a752fc34 Mon Sep 17 00:00:00 2001 From: Mike Snitzer <snitzer@redhat.com> Date: Thu, 24 Mar 2011 13:54:33 +0000 Subject: dm mpath: allow table load with no priority groups This patch adjusts the multipath target to allow a table with both 0 priority groups and 0 for the initial priority group number. If any mpath device is held open when all paths in the last priority group have failed, userspace multipathd will attempt to reload the associated DM table to reflect the fact that the device no longer has any priority groups. But the reload attempt always failed because the multipath target did not allow 0 priority groups. All multipath target messages related to priority group (enable_group, disable_group, switch_group) will handle a priority group of 0 (will cause error). When reloading a multipath table with 0 priority groups, userspace multipathd must be updated to specify an initial priority group number of 0 (rather than 1). Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: Babu Moger <babu.moger@lsi.com> Acked-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Alasdair G Kergon <agk@redhat.com> --- drivers/md/dm-mpath.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 52f0de394632..a550a057d991 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -844,8 +844,8 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc, { /* target parameters */ static struct param _params[] = { - {1, 1024, "invalid number of priority groups"}, - {1, 1024, "invalid initial priority group number"}, + {0, 1024, "invalid number of priority groups"}, + {0, 1024, "invalid initial priority group number"}, }; int r; @@ -879,6 +879,13 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc, if (r) goto bad; + if ((!m->nr_priority_groups && next_pg_num) || + (m->nr_priority_groups && !next_pg_num)) { + ti->error = "invalid initial priority group"; + r = -EINVAL; + goto bad; + } + /* parse the priority groups */ while (as.argc) { struct priority_group *pg; @@ -1415,7 +1422,7 @@ static int multipath_status(struct dm_target *ti, status_type_t type, else if (m->current_pg) pg_num = m->current_pg->pg_num; else - pg_num = 1; + pg_num = (m->nr_priority_groups ? 1 : 0); DMEMIT("%u ", pg_num); -- cgit v1.2.3 From 29915202006c2e7bafe81348eb498ff9a724ac61 Mon Sep 17 00:00:00 2001 From: Mustafa Mesanovic <mume@linux.vnet.ibm.com> Date: Thu, 24 Mar 2011 13:54:35 +0000 Subject: dm stripe: implement merge method Implement a merge function in the striped target. When the striped target's underlying devices provide a merge_bvec_fn (like all DM devices do via dm_merge_bvec) it is important to call down to them when building a biovec that doesn't span a stripe boundary. Without the merge method, a striped DM device stacked on DM devices causes bios with a single page to be submitted which results in unnecessary overhead that hurts performance. This change really helps filesystems (e.g. XFS and now ext4) which take care to assemble larger bios. By implementing stripe_merge(), DM and the stripe target no longer undermine the filesystem's work by only allowing a single page per bio. Buffered IO sees the biggest improvement (particularly uncached reads, buffered writes to a lesser degree). This is especially so for more capable "enterprise" storage LUNs. The performance improvement has been measured to be ~12-35% -- when a reasonable chunk_size is used (e.g. 64K) in conjunction with a stripe count that is a power of 2. In contrast, the performance penalty is ~5-7% for the pathological worst case stripe configuration (small chunk_size with a stripe count that is not a power of 2). The reason for this is that stripe_map_sector() is now called once for every call to dm_merge_bvec(). stripe_map_sector() will use slower division if stripe count isn't a power of 2. Signed-off-by: Mustafa Mesanovic <mume@linux.vnet.ibm.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> --- drivers/md/dm-stripe.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c index dddfa14f2982..3d80cf0c152d 100644 --- a/drivers/md/dm-stripe.c +++ b/drivers/md/dm-stripe.c @@ -396,9 +396,29 @@ static void stripe_io_hints(struct dm_target *ti, blk_limits_io_opt(limits, chunk_size * sc->stripes); } +static int stripe_merge(struct dm_target *ti, struct bvec_merge_data *bvm, + struct bio_vec *biovec, int max_size) +{ + struct stripe_c *sc = ti->private; + sector_t bvm_sector = bvm->bi_sector; + uint32_t stripe; + struct request_queue *q; + + stripe_map_sector(sc, bvm_sector, &stripe, &bvm_sector); + + q = bdev_get_queue(sc->stripe[stripe].dev->bdev); + if (!q->merge_bvec_fn) + return max_size; + + bvm->bi_bdev = sc->stripe[stripe].dev->bdev; + bvm->bi_sector = sc->stripe[stripe].physical_start + bvm_sector; + + return min(max_size, q->merge_bvec_fn(q, bvm, biovec)); +} + static struct target_type stripe_target = { .name = "striped", - .version = {1, 3, 1}, + .version = {1, 4, 0}, .module = THIS_MODULE, .ctr = stripe_ctr, .dtr = stripe_dtr, @@ -407,6 +427,7 @@ static struct target_type stripe_target = { .status = stripe_status, .iterate_devices = stripe_iterate_devices, .io_hints = stripe_io_hints, + .merge = stripe_merge, }; int __init dm_stripe_init(void) -- cgit v1.2.3 From e73b83f270828630a9ce33728f6ef61c37a82340 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker <bjschuma@netapp.com> Date: Thu, 24 Mar 2011 17:12:23 +0000 Subject: NFS: convert call_sync() to a function This patch changes nfs4_call_sync() from a macro into a static inline function. As a macro, the call_sync() function will not do any type checking and depends on the sequence arguments always having the same name. As a function, we get to have type checking and can rename the arguments if we so choose. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4proc.c | 53 ++++++++++++++++++++++++++++++----------------------- 1 file changed, 30 insertions(+), 23 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 1d84e7088af9..e403d7a84466 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -719,9 +719,16 @@ int _nfs4_call_sync(struct nfs_server *server, return rpc_call_sync(server->client, msg, 0); } -#define nfs4_call_sync(server, msg, args, res, cache_reply) \ - (server)->nfs_client->cl_mvops->call_sync((server), (msg), &(args)->seq_args, \ - &(res)->seq_res, (cache_reply)) +static inline +int nfs4_call_sync(struct nfs_server *server, + struct rpc_message *msg, + struct nfs4_sequence_args *args, + struct nfs4_sequence_res *res, + int cache_reply) +{ + return server->nfs_client->cl_mvops->call_sync(server, msg, args, + res, cache_reply); +} static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo) { @@ -1831,7 +1838,7 @@ static int _nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred, } else memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid)); - status = nfs4_call_sync(server, &msg, &arg, &res, 1); + status = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); if (status == 0 && state != NULL) renew_lease(server, timestamp); return status; @@ -2090,7 +2097,7 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f }; int status; - status = nfs4_call_sync(server, &msg, &args, &res, 0); + status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); if (status == 0) { memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask)); server->caps &= ~(NFS_CAP_ACLS|NFS_CAP_HARDLINKS| @@ -2160,7 +2167,7 @@ static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, }; nfs_fattr_init(info->fattr); - return nfs4_call_sync(server, &msg, &args, &res, 0); + return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, @@ -2249,7 +2256,7 @@ static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, }; nfs_fattr_init(fattr); - return nfs4_call_sync(server, &msg, &args, &res, 0); + return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr) @@ -2333,7 +2340,7 @@ static int _nfs4_proc_lookupfh(struct nfs_server *server, const struct nfs_fh *d nfs_fattr_init(fattr); dprintk("NFS call lookupfh %s\n", name->name); - status = nfs4_call_sync(server, &msg, &args, &res, 0); + status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); dprintk("NFS reply lookupfh: %d\n", status); return status; } @@ -2421,7 +2428,7 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry if (res.fattr == NULL) return -ENOMEM; - status = nfs4_call_sync(server, &msg, &args, &res, 0); + status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); if (!status) { entry->mask = 0; if (res.access & NFS4_ACCESS_READ) @@ -2488,7 +2495,7 @@ static int _nfs4_proc_readlink(struct inode *inode, struct page *page, .rpc_resp = &res, }; - return nfs4_call_sync(NFS_SERVER(inode), &msg, &args, &res, 0); + return nfs4_call_sync(NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_proc_readlink(struct inode *inode, struct page *page, @@ -2577,7 +2584,7 @@ static int _nfs4_proc_remove(struct inode *dir, struct qstr *name) if (res.dir_attr == NULL) goto out; - status = nfs4_call_sync(server, &msg, &args, &res, 1); + status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 1); if (status == 0) { update_changeattr(dir, &res.cinfo); nfs_post_op_update_inode(dir, res.dir_attr); @@ -2678,7 +2685,7 @@ static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name, if (res.old_fattr == NULL || res.new_fattr == NULL) goto out; - status = nfs4_call_sync(server, &msg, &arg, &res, 1); + status = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); if (!status) { update_changeattr(old_dir, &res.old_cinfo); nfs_post_op_update_inode(old_dir, res.old_fattr); @@ -2729,7 +2736,7 @@ static int _nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr * if (res.fattr == NULL || res.dir_attr == NULL) goto out; - status = nfs4_call_sync(server, &msg, &arg, &res, 1); + status = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); if (!status) { update_changeattr(dir, &res.cinfo); nfs_post_op_update_inode(dir, res.dir_attr); @@ -2793,7 +2800,7 @@ static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir, static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_createdata *data) { int status = nfs4_call_sync(NFS_SERVER(dir), &data->msg, - &data->arg, &data->res, 1); + &data->arg.seq_args, &data->res.seq_res, 1); if (status == 0) { update_changeattr(dir, &data->res.dir_cinfo); nfs_post_op_update_inode(dir, data->res.dir_fattr); @@ -2905,7 +2912,7 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, (unsigned long long)cookie); nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args); res.pgbase = args.pgbase; - status = nfs4_call_sync(NFS_SERVER(dir), &msg, &args, &res, 0); + status = nfs4_call_sync(NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0); if (status >= 0) { memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE); status += args.pgbase; @@ -2997,7 +3004,7 @@ static int _nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, }; nfs_fattr_init(fsstat->fattr); - return nfs4_call_sync(server, &msg, &args, &res, 0); + return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsstat *fsstat) @@ -3028,7 +3035,7 @@ static int _nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, .rpc_resp = &res, }; - return nfs4_call_sync(server, &msg, &args, &res, 0); + return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo) @@ -3073,7 +3080,7 @@ static int _nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle } nfs_fattr_init(pathconf->fattr); - return nfs4_call_sync(server, &msg, &args, &res, 0); + return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, @@ -3452,7 +3459,7 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu resp_buf = buf; buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase); } - ret = nfs4_call_sync(NFS_SERVER(inode), &msg, &args, &res, 0); + ret = nfs4_call_sync(NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0); if (ret) goto out_free; if (res.acl_len > args.acl_len) @@ -3527,7 +3534,7 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl if (i < 0) return i; nfs_inode_return_delegation(inode); - ret = nfs4_call_sync(server, &msg, &arg, &res, 1); + ret = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); /* * Free each page after tx, so the only ref left is @@ -3890,7 +3897,7 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock lsp = request->fl_u.nfs4_fl.owner; arg.lock_owner.id = lsp->ls_id.id; arg.lock_owner.s_dev = server->s_dev; - status = nfs4_call_sync(server, &msg, &arg, &res, 1); + status = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); switch (status) { case 0: request->fl_type = F_UNLCK; @@ -4618,7 +4625,7 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, nfs_fattr_init(&fs_locations->fattr); fs_locations->server = server; fs_locations->nlocations = 0; - status = nfs4_call_sync(server, &msg, &args, &res, 0); + status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); nfs_fixup_referral_attributes(&fs_locations->fattr); dprintk("%s: returned status = %d\n", __func__, status); return status; @@ -5586,7 +5593,7 @@ _nfs4_proc_getdeviceinfo(struct nfs_server *server, struct pnfs_device *pdev) int status; dprintk("--> %s\n", __func__); - status = nfs4_call_sync(server, &msg, &args, &res, 0); + status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); dprintk("<-- %s status=%d\n", __func__, status); return status; -- cgit v1.2.3 From 7c5130588d691a3b34d02312f1bd1b6d56fe0100 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker <bjschuma@netapp.com> Date: Thu, 24 Mar 2011 17:12:24 +0000 Subject: NFS: lookup supports alternate client A later patch will need to perform a lookup using an alternate client with a different security flavor. This patch adds support for doing that on NFS v4. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/dir.c | 6 ++-- fs/nfs/internal.h | 6 ++-- fs/nfs/namespace.c | 2 +- fs/nfs/nfs3proc.c | 2 +- fs/nfs/nfs4_fs.h | 3 +- fs/nfs/nfs4proc.c | 86 +++++++++++++++++++++++++++---------------------- fs/nfs/proc.c | 2 +- include/linux/nfs_xdr.h | 2 +- 8 files changed, 60 insertions(+), 49 deletions(-) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index abdf38d5971d..a83cd0d9dfab 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1068,7 +1068,7 @@ static int nfs_lookup_revalidate(struct dentry *dentry, struct nameidata *nd) if (fhandle == NULL || fattr == NULL) goto out_error; - error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr); + error = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, &dentry->d_name, fhandle, fattr); if (error) goto out_bad; if (nfs_compare_fh(NFS_FH(inode), fhandle)) @@ -1224,7 +1224,7 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru parent = dentry->d_parent; /* Protect against concurrent sillydeletes */ nfs_block_sillyrename(parent); - error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr); + error = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, &dentry->d_name, fhandle, fattr); if (error == -ENOENT) goto no_entry; if (error < 0) { @@ -1562,7 +1562,7 @@ int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fhandle, if (dentry->d_inode) goto out; if (fhandle->size == 0) { - error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr); + error = NFS_PROTO(dir)->lookup(NFS_SERVER(dir)->client, dir, &dentry->d_name, fhandle, fattr); if (error) goto out_error; } diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 72e0bddf7a2f..1ec5d0662ede 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -296,12 +296,14 @@ extern int nfs4_init_client(struct nfs_client *clp, rpc_authflavor_t authflavour, int noresvport); extern void nfs4_reset_write(struct rpc_task *task, struct nfs_write_data *data); -extern int _nfs4_call_sync(struct nfs_server *server, +extern int _nfs4_call_sync(struct rpc_clnt *clnt, + struct nfs_server *server, struct rpc_message *msg, struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, int cache_reply); -extern int _nfs4_call_sync_session(struct nfs_server *server, +extern int _nfs4_call_sync_session(struct rpc_clnt *clnt, + struct nfs_server *server, struct rpc_message *msg, struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index bf1c68009ffd..b02720864ded 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -153,7 +153,7 @@ struct vfsmount *nfs_d_automount(struct path *path) /* Look it up again to get its attributes */ parent = dget_parent(path->dentry); - err = server->nfs_client->rpc_ops->lookup(parent->d_inode, + err = server->nfs_client->rpc_ops->lookup(server->client, parent->d_inode, &path->dentry->d_name, fh, fattr); dput(parent); diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index d0c80d8b3f96..38053d823eb0 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -141,7 +141,7 @@ nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, } static int -nfs3_proc_lookup(struct inode *dir, struct qstr *name, +nfs3_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr) { struct nfs3_diropargs arg = { diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index c64be1cff080..72e5f1a2883e 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -57,7 +57,8 @@ enum nfs4_session_state { struct nfs4_minor_version_ops { u32 minor_version; - int (*call_sync)(struct nfs_server *server, + int (*call_sync)(struct rpc_clnt *clnt, + struct nfs_server *server, struct rpc_message *msg, struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index e403d7a84466..448657456b68 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -71,7 +71,9 @@ static int _nfs4_proc_open(struct nfs4_opendata *data); static int _nfs4_recover_proc_open(struct nfs4_opendata *data); static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *); static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *, struct nfs4_state *); -static int _nfs4_proc_lookup(struct inode *dir, const struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr); +static int _nfs4_proc_lookup(struct rpc_clnt *client, struct inode *dir, + const struct qstr *name, struct nfs_fh *fhandle, + struct nfs_fattr *fattr); static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr); static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred, struct nfs_fattr *fattr, struct iattr *sattr, @@ -657,7 +659,8 @@ struct rpc_call_ops nfs41_call_priv_sync_ops = { .rpc_call_done = nfs41_call_sync_done, }; -static int nfs4_call_sync_sequence(struct nfs_server *server, +static int nfs4_call_sync_sequence(struct rpc_clnt *clnt, + struct nfs_server *server, struct rpc_message *msg, struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, @@ -673,7 +676,7 @@ static int nfs4_call_sync_sequence(struct nfs_server *server, .cache_reply = cache_reply, }; struct rpc_task_setup task_setup = { - .rpc_client = server->client, + .rpc_client = clnt, .rpc_message = msg, .callback_ops = &nfs41_call_sync_ops, .callback_data = &data @@ -692,13 +695,14 @@ static int nfs4_call_sync_sequence(struct nfs_server *server, return ret; } -int _nfs4_call_sync_session(struct nfs_server *server, +int _nfs4_call_sync_session(struct rpc_clnt *clnt, + struct nfs_server *server, struct rpc_message *msg, struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, int cache_reply) { - return nfs4_call_sync_sequence(server, msg, args, res, cache_reply, 0); + return nfs4_call_sync_sequence(clnt, server, msg, args, res, cache_reply, 0); } #else @@ -709,25 +713,27 @@ static int nfs4_sequence_done(struct rpc_task *task, } #endif /* CONFIG_NFS_V4_1 */ -int _nfs4_call_sync(struct nfs_server *server, +int _nfs4_call_sync(struct rpc_clnt *clnt, + struct nfs_server *server, struct rpc_message *msg, struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, int cache_reply) { args->sa_session = res->sr_session = NULL; - return rpc_call_sync(server->client, msg, 0); + return rpc_call_sync(clnt, msg, 0); } static inline -int nfs4_call_sync(struct nfs_server *server, +int nfs4_call_sync(struct rpc_clnt *clnt, + struct nfs_server *server, struct rpc_message *msg, struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, int cache_reply) { - return server->nfs_client->cl_mvops->call_sync(server, msg, args, - res, cache_reply); + return server->nfs_client->cl_mvops->call_sync(clnt, server, msg, + args, res, cache_reply); } static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo) @@ -1838,7 +1844,7 @@ static int _nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred, } else memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid)); - status = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); + status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); if (status == 0 && state != NULL) renew_lease(server, timestamp); return status; @@ -2097,7 +2103,7 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f }; int status; - status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); if (status == 0) { memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask)); server->caps &= ~(NFS_CAP_ACLS|NFS_CAP_HARDLINKS| @@ -2167,7 +2173,7 @@ static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, }; nfs_fattr_init(info->fattr); - return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, @@ -2256,7 +2262,7 @@ static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, }; nfs_fattr_init(fattr); - return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr) @@ -2316,9 +2322,9 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, return status; } -static int _nfs4_proc_lookupfh(struct nfs_server *server, const struct nfs_fh *dirfh, - const struct qstr *name, struct nfs_fh *fhandle, - struct nfs_fattr *fattr) +static int _nfs4_proc_lookupfh(struct rpc_clnt *clnt, struct nfs_server *server, + const struct nfs_fh *dirfh, const struct qstr *name, + struct nfs_fh *fhandle, struct nfs_fattr *fattr) { int status; struct nfs4_lookup_arg args = { @@ -2340,7 +2346,7 @@ static int _nfs4_proc_lookupfh(struct nfs_server *server, const struct nfs_fh *d nfs_fattr_init(fattr); dprintk("NFS call lookupfh %s\n", name->name); - status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + status = nfs4_call_sync(clnt, server, &msg, &args.seq_args, &res.seq_res, 0); dprintk("NFS reply lookupfh: %d\n", status); return status; } @@ -2352,7 +2358,7 @@ static int nfs4_proc_lookupfh(struct nfs_server *server, struct nfs_fh *dirfh, struct nfs4_exception exception = { }; int err; do { - err = _nfs4_proc_lookupfh(server, dirfh, name, fhandle, fattr); + err = _nfs4_proc_lookupfh(server->client, server, dirfh, name, fhandle, fattr); /* FIXME: !!!! */ if (err == -NFS4ERR_MOVED) { err = -EREMOTE; @@ -2363,26 +2369,28 @@ static int nfs4_proc_lookupfh(struct nfs_server *server, struct nfs_fh *dirfh, return err; } -static int _nfs4_proc_lookup(struct inode *dir, const struct qstr *name, - struct nfs_fh *fhandle, struct nfs_fattr *fattr) +static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, + const struct qstr *name, struct nfs_fh *fhandle, + struct nfs_fattr *fattr) { int status; dprintk("NFS call lookup %s\n", name->name); - status = _nfs4_proc_lookupfh(NFS_SERVER(dir), NFS_FH(dir), name, fhandle, fattr); + status = _nfs4_proc_lookupfh(clnt, NFS_SERVER(dir), NFS_FH(dir), name, fhandle, fattr); if (status == -NFS4ERR_MOVED) status = nfs4_get_referral(dir, name, fattr, fhandle); dprintk("NFS reply lookup: %d\n", status); return status; } -static int nfs4_proc_lookup(struct inode *dir, struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr) +static int nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name, + struct nfs_fh *fhandle, struct nfs_fattr *fattr) { struct nfs4_exception exception = { }; int err; do { err = nfs4_handle_exception(NFS_SERVER(dir), - _nfs4_proc_lookup(dir, name, fhandle, fattr), + _nfs4_proc_lookup(clnt, dir, name, fhandle, fattr), &exception); } while (exception.retry); return err; @@ -2428,7 +2436,7 @@ static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry if (res.fattr == NULL) return -ENOMEM; - status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); if (!status) { entry->mask = 0; if (res.access & NFS4_ACCESS_READ) @@ -2495,7 +2503,7 @@ static int _nfs4_proc_readlink(struct inode *inode, struct page *page, .rpc_resp = &res, }; - return nfs4_call_sync(NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0); + return nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_proc_readlink(struct inode *inode, struct page *page, @@ -2584,7 +2592,7 @@ static int _nfs4_proc_remove(struct inode *dir, struct qstr *name) if (res.dir_attr == NULL) goto out; - status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 1); + status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 1); if (status == 0) { update_changeattr(dir, &res.cinfo); nfs_post_op_update_inode(dir, res.dir_attr); @@ -2685,7 +2693,7 @@ static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name, if (res.old_fattr == NULL || res.new_fattr == NULL) goto out; - status = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); + status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); if (!status) { update_changeattr(old_dir, &res.old_cinfo); nfs_post_op_update_inode(old_dir, res.old_fattr); @@ -2736,7 +2744,7 @@ static int _nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr * if (res.fattr == NULL || res.dir_attr == NULL) goto out; - status = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); + status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); if (!status) { update_changeattr(dir, &res.cinfo); nfs_post_op_update_inode(dir, res.dir_attr); @@ -2799,7 +2807,7 @@ static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir, static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_createdata *data) { - int status = nfs4_call_sync(NFS_SERVER(dir), &data->msg, + int status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &data->msg, &data->arg.seq_args, &data->res.seq_res, 1); if (status == 0) { update_changeattr(dir, &data->res.dir_cinfo); @@ -2912,7 +2920,7 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, (unsigned long long)cookie); nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args); res.pgbase = args.pgbase; - status = nfs4_call_sync(NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0); + status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0); if (status >= 0) { memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE); status += args.pgbase; @@ -3004,7 +3012,7 @@ static int _nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, }; nfs_fattr_init(fsstat->fattr); - return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsstat *fsstat) @@ -3035,7 +3043,7 @@ static int _nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, .rpc_resp = &res, }; - return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo) @@ -3080,7 +3088,7 @@ static int _nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle } nfs_fattr_init(pathconf->fattr); - return nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); } static int nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, @@ -3459,7 +3467,7 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu resp_buf = buf; buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase); } - ret = nfs4_call_sync(NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0); + ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0); if (ret) goto out_free; if (res.acl_len > args.acl_len) @@ -3534,7 +3542,7 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl if (i < 0) return i; nfs_inode_return_delegation(inode); - ret = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); + ret = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); /* * Free each page after tx, so the only ref left is @@ -3897,7 +3905,7 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock lsp = request->fl_u.nfs4_fl.owner; arg.lock_owner.id = lsp->ls_id.id; arg.lock_owner.s_dev = server->s_dev; - status = nfs4_call_sync(server, &msg, &arg.seq_args, &res.seq_res, 1); + status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); switch (status) { case 0: request->fl_type = F_UNLCK; @@ -4625,7 +4633,7 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, nfs_fattr_init(&fs_locations->fattr); fs_locations->server = server; fs_locations->nlocations = 0; - status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); nfs_fixup_referral_attributes(&fs_locations->fattr); dprintk("%s: returned status = %d\n", __func__, status); return status; @@ -5593,7 +5601,7 @@ _nfs4_proc_getdeviceinfo(struct nfs_server *server, struct pnfs_device *pdev) int status; dprintk("--> %s\n", __func__); - status = nfs4_call_sync(server, &msg, &args.seq_args, &res.seq_res, 0); + status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); dprintk("<-- %s status=%d\n", __func__, status); return status; diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index b8ec170f2a0f..ac40b8535d7e 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -177,7 +177,7 @@ nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, } static int -nfs_proc_lookup(struct inode *dir, struct qstr *name, +nfs_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr) { struct nfs_diropargs arg = { diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 2c2c67d2eb42..71ee6799db9b 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1071,7 +1071,7 @@ struct nfs_rpc_ops { struct nfs_fattr *); int (*setattr) (struct dentry *, struct nfs_fattr *, struct iattr *); - int (*lookup) (struct inode *, struct qstr *, + int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *, struct nfs_fh *, struct nfs_fattr *); int (*access) (struct inode *, struct nfs_access_entry *); int (*readlink)(struct inode *, struct page *, unsigned int, -- cgit v1.2.3 From 5a5ea0d485c9715c86bf858bbdc5f6d373b3db88 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker <bjschuma@netapp.com> Date: Thu, 24 Mar 2011 17:12:29 +0000 Subject: NFS: Add secinfo procedure This patch adds the nfs4 operation secinfo as a valid nfs rpc operation. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4proc.c | 35 +++++++++++++ fs/nfs/nfs4xdr.c | 135 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/nfs4.h | 1 + include/linux/nfs_xdr.h | 37 +++++++++++++ 4 files changed, 208 insertions(+) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 448657456b68..0b8bae119976 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4639,6 +4639,40 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, return status; } +static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors) +{ + int status; + struct nfs4_secinfo_arg args = { + .dir_fh = NFS_FH(dir), + .name = name, + }; + struct nfs4_secinfo_res res = { + .flavors = flavors, + }; + struct rpc_message msg = { + .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SECINFO], + .rpc_argp = &args, + .rpc_resp = &res, + }; + + dprintk("NFS call secinfo %s\n", name->name); + status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0); + dprintk("NFS reply secinfo: %d\n", status); + return status; +} + +int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors) +{ + struct nfs4_exception exception = { }; + int err; + do { + err = nfs4_handle_exception(NFS_SERVER(dir), + _nfs4_proc_secinfo(dir, name, flavors), + &exception); + } while (exception.retry); + return err; +} + #ifdef CONFIG_NFS_V4_1 /* * Check the exchange flags returned by the server for invalid flags, having @@ -5756,6 +5790,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .close_context = nfs4_close_context, .open_context = nfs4_atomic_open, .init_client = nfs4_init_client, + .secinfo = nfs4_proc_secinfo, }; static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = { diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 0cf560f77884..98afcf947aa4 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -46,6 +46,7 @@ #include <linux/kdev_t.h> #include <linux/sunrpc/clnt.h> #include <linux/sunrpc/msg_prot.h> +#include <linux/sunrpc/gss_api.h> #include <linux/nfs.h> #include <linux/nfs4.h> #include <linux/nfs_fs.h> @@ -253,6 +254,8 @@ static int nfs4_stat_to_errno(int); (encode_getattr_maxsz) #define decode_fs_locations_maxsz \ (0) +#define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) +#define decode_secinfo_maxsz (op_decode_hdr_maxsz + 4 + (NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN))) #if defined(CONFIG_NFS_V4_1) #define NFS4_MAX_MACHINE_NAME_LEN (64) @@ -676,6 +679,14 @@ static int nfs4_stat_to_errno(int); decode_putfh_maxsz + \ decode_lookup_maxsz + \ decode_fs_locations_maxsz) +#define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ + encode_putfh_maxsz + \ + encode_secinfo_maxsz) +#define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ + decode_putfh_maxsz + \ + decode_secinfo_maxsz) #if defined(CONFIG_NFS_V4_1) #define NFS4_enc_exchange_id_sz \ (compound_encode_hdr_maxsz + \ @@ -1620,6 +1631,18 @@ static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *state hdr->replen += decode_delegreturn_maxsz; } +static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) +{ + int len = name->len; + __be32 *p; + + p = reserve_space(xdr, 8 + len); + *p++ = cpu_to_be32(OP_SECINFO); + xdr_encode_opaque(p, name->name, len); + hdr->nops++; + hdr->replen += decode_secinfo_maxsz; +} + #if defined(CONFIG_NFS_V4_1) /* NFSv4.1 operations */ static void encode_exchange_id(struct xdr_stream *xdr, @@ -2465,6 +2488,24 @@ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, encode_nops(&hdr); } +/* + * Encode SECINFO request + */ +static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, + struct xdr_stream *xdr, + struct nfs4_secinfo_arg *args) +{ + struct compound_hdr hdr = { + .minorversion = nfs4_xdr_minorversion(&args->seq_args), + }; + + encode_compound_hdr(xdr, req, &hdr); + encode_sequence(xdr, &args->seq_args, &hdr); + encode_putfh(xdr, args->dir_fh, &hdr); + encode_secinfo(xdr, args->name, &hdr); + encode_nops(&hdr); +} + #if defined(CONFIG_NFS_V4_1) /* * EXCHANGE_ID request @@ -4680,6 +4721,73 @@ static int decode_delegreturn(struct xdr_stream *xdr) return decode_op_hdr(xdr, OP_DELEGRETURN); } +static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) +{ + __be32 *p; + + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + flavor->gss.sec_oid4.len = be32_to_cpup(p); + if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) + goto out_err; + + p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); + if (unlikely(!p)) + goto out_overflow; + memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); + + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + flavor->gss.qop4 = be32_to_cpup(p++); + flavor->gss.service = be32_to_cpup(p); + + return 0; + +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; +out_err: + return -EINVAL; +} + +static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) +{ + struct nfs4_secinfo_flavor *sec_flavor; + int status; + __be32 *p; + int i; + + status = decode_op_hdr(xdr, OP_SECINFO); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + res->flavors->num_flavors = be32_to_cpup(p); + + for (i = 0; i < res->flavors->num_flavors; i++) { + sec_flavor = &res->flavors->flavors[i]; + if ((char *)&sec_flavor[1] - (char *)res > PAGE_SIZE) + break; + + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + sec_flavor->flavor = be32_to_cpup(p); + + if (sec_flavor->flavor == RPC_AUTH_GSS) { + if (decode_secinfo_gss(xdr, sec_flavor)) + break; + } + } + + return 0; + +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; +} + #if defined(CONFIG_NFS_V4_1) static int decode_exchange_id(struct xdr_stream *xdr, struct nfs41_exchange_id_res *res) @@ -5919,6 +6027,32 @@ out: return status; } +/* + * Decode SECINFO response + */ +static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, + struct xdr_stream *xdr, + struct nfs4_secinfo_res *res) +{ + struct compound_hdr hdr; + int status; + + status = decode_compound_hdr(xdr, &hdr); + if (status) + goto out; + status = decode_sequence(xdr, &res->seq_res, rqstp); + if (status) + goto out; + status = decode_putfh(xdr); + if (status) + goto out; + status = decode_secinfo(xdr, res); + if (status) + goto out; +out: + return status; +} + #if defined(CONFIG_NFS_V4_1) /* * Decode EXCHANGE_ID response @@ -6258,6 +6392,7 @@ struct rpc_procinfo nfs4_procedures[] = { PROC(SETACL, enc_setacl, dec_setacl), PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), + PROC(SECINFO, enc_secinfo, dec_secinfo), #if defined(CONFIG_NFS_V4_1) PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), PROC(CREATE_SESSION, enc_create_session, dec_create_session), diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index 134716e5e350..7e7f6b7e46b1 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -550,6 +550,7 @@ enum { NFSPROC4_CLNT_SETACL, NFSPROC4_CLNT_FS_LOCATIONS, NFSPROC4_CLNT_RELEASE_LOCKOWNER, + NFSPROC4_CLNT_SECINFO, /* nfs41 */ NFSPROC4_CLNT_EXCHANGE_ID, diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 71ee6799db9b..3f32bf175840 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -3,6 +3,7 @@ #include <linux/nfsacl.h> #include <linux/nfs3.h> +#include <linux/sunrpc/gss_api.h> /* * To change the maximum rsize and wsize supported by the NFS client, adjust @@ -14,6 +15,9 @@ #define NFS_DEF_FILE_IO_SIZE (4096U) #define NFS_MIN_FILE_IO_SIZE (1024U) +/* Forward declaration for NFS v3 */ +struct nfs4_secinfo_flavors; + struct nfs_fsid { uint64_t major; uint64_t minor; @@ -936,6 +940,38 @@ struct nfs4_fs_locations_res { struct nfs4_sequence_res seq_res; }; +struct nfs4_secinfo_oid { + unsigned int len; + char data[GSS_OID_MAX_LEN]; +}; + +struct nfs4_secinfo_gss { + struct nfs4_secinfo_oid sec_oid4; + unsigned int qop4; + unsigned int service; +}; + +struct nfs4_secinfo_flavor { + unsigned int flavor; + struct nfs4_secinfo_gss gss; +}; + +struct nfs4_secinfo_flavors { + unsigned int num_flavors; + struct nfs4_secinfo_flavor flavors[0]; +}; + +struct nfs4_secinfo_arg { + const struct nfs_fh *dir_fh; + const struct qstr *name; + struct nfs4_sequence_args seq_args; +}; + +struct nfs4_secinfo_res { + struct nfs4_secinfo_flavors *flavors; + struct nfs4_sequence_res seq_res; +}; + #endif /* CONFIG_NFS_V4 */ struct nfstime4 { @@ -1118,6 +1154,7 @@ struct nfs_rpc_ops { struct iattr *iattr); int (*init_client) (struct nfs_client *, const struct rpc_timeout *, const char *, rpc_authflavor_t, int); + int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *); }; /* -- cgit v1.2.3 From 7ebb931598cd95cccea10d4bc4c0123a464ea565 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker <bjschuma@netapp.com> Date: Thu, 24 Mar 2011 17:12:30 +0000 Subject: NFS: use secinfo when crossing mountpoints A submount may use different security than the parent mount does. We should figure out what sec flavor the submount uses at mount time. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/inode.c | 8 ++- fs/nfs/internal.h | 7 +++ fs/nfs/namespace.c | 113 +++++++++++++++++++++++++++++++++- fs/nfs/nfs4proc.c | 14 +++++ fs/nfs/nfs4xdr.c | 11 ++-- include/linux/nfs_xdr.h | 1 + net/sunrpc/auth_gss/gss_mech_switch.c | 22 +++++++ 7 files changed, 165 insertions(+), 11 deletions(-) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 01768e5e2c9b..058d7d63e566 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -254,7 +254,9 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) struct inode *inode = ERR_PTR(-ENOENT); unsigned long hash; - if ((fattr->valid & NFS_ATTR_FATTR_FILEID) == 0) + nfs_attr_check_mountpoint(sb, fattr); + + if ((fattr->valid & NFS_ATTR_FATTR_FILEID) == 0 && (fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT) == 0) goto out_no_inode; if ((fattr->valid & NFS_ATTR_FATTR_TYPE) == 0) goto out_no_inode; @@ -298,8 +300,8 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) if (nfs_server_capable(inode, NFS_CAP_READDIRPLUS)) set_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags); /* Deal with crossing mountpoints */ - if ((fattr->valid & NFS_ATTR_FATTR_FSID) - && !nfs_fsid_equal(&NFS_SB(sb)->fsid, &fattr->fsid)) { + if (fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT || + fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) { if (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) inode->i_op = &nfs_referral_inode_operations; else diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 1ec5d0662ede..345d86b90e26 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -39,6 +39,12 @@ static inline int nfs4_has_persistent_session(const struct nfs_client *clp) return 0; } +static inline void nfs_attr_check_mountpoint(struct super_block *parent, struct nfs_fattr *fattr) +{ + if (!nfs_fsid_equal(&NFS_SB(parent)->fsid, &fattr->fsid)) + fattr->valid |= NFS_ATTR_FATTR_MOUNTPOINT; +} + struct nfs_clone_mount { const struct super_block *sb; const struct dentry *dentry; @@ -214,6 +220,7 @@ extern const u32 nfs41_maxwrite_overhead; /* nfs4proc.c */ #ifdef CONFIG_NFS_V4 extern struct rpc_procinfo nfs4_procedures[]; +void nfs_fixup_secinfo_attributes(struct nfs_fattr *, struct nfs_fh *); #endif extern int nfs4_init_ds_session(struct nfs_client *clp); diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index b02720864ded..ad92bf731ff5 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -15,6 +15,7 @@ #include <linux/string.h> #include <linux/sunrpc/clnt.h> #include <linux/vfs.h> +#include <linux/sunrpc/gss_api.h> #include "internal.h" #define NFSDBG_FACILITY NFSDBG_VFS @@ -27,7 +28,8 @@ int nfs_mountpoint_expiry_timeout = 500 * HZ; static struct vfsmount *nfs_do_submount(struct dentry *dentry, struct nfs_fh *fh, - struct nfs_fattr *fattr); + struct nfs_fattr *fattr, + rpc_authflavor_t authflavor); /* * nfs_path - reconstruct the path given an arbitrary dentry @@ -116,6 +118,100 @@ Elong: return ERR_PTR(-ENAMETOOLONG); } +#ifdef CONFIG_NFS_V4 +static rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *flavors, struct inode *inode) +{ + struct gss_api_mech *mech; + struct xdr_netobj oid; + int i; + rpc_authflavor_t pseudoflavor = RPC_AUTH_UNIX; + + for (i = 0; i < flavors->num_flavors; i++) { + struct nfs4_secinfo_flavor *flavor; + flavor = &flavors->flavors[i]; + + if (flavor->flavor == RPC_AUTH_NULL || flavor->flavor == RPC_AUTH_UNIX) { + pseudoflavor = flavor->flavor; + break; + } else if (flavor->flavor == RPC_AUTH_GSS) { + oid.len = flavor->gss.sec_oid4.len; + oid.data = flavor->gss.sec_oid4.data; + mech = gss_mech_get_by_OID(&oid); + if (!mech) + continue; + pseudoflavor = gss_svc_to_pseudoflavor(mech, flavor->gss.service); + gss_mech_put(mech); + break; + } + } + + return pseudoflavor; +} + +static rpc_authflavor_t nfs_negotiate_security(const struct dentry *parent, const struct dentry *dentry) +{ + int status = 0; + struct page *page; + struct nfs4_secinfo_flavors *flavors; + int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *); + rpc_authflavor_t flavor = RPC_AUTH_UNIX; + + secinfo = NFS_PROTO(parent->d_inode)->secinfo; + if (secinfo != NULL) { + page = alloc_page(GFP_KERNEL); + if (!page) { + status = -ENOMEM; + goto out; + } + flavors = page_address(page); + status = secinfo(parent->d_inode, &dentry->d_name, flavors); + flavor = nfs_find_best_sec(flavors, dentry->d_inode); + put_page(page); + } + + return flavor; + +out: + status = -ENOMEM; + return status; +} + +static rpc_authflavor_t nfs_lookup_with_sec(struct nfs_server *server, struct dentry *parent, + struct dentry *dentry, struct path *path, + struct nfs_fh *fh, struct nfs_fattr *fattr) +{ + rpc_authflavor_t flavor; + struct rpc_clnt *clone; + struct rpc_auth *auth; + int err; + + flavor = nfs_negotiate_security(parent, path->dentry); + if (flavor < 0) + goto out; + clone = rpc_clone_client(server->client); + auth = rpcauth_create(flavor, clone); + if (!auth) { + flavor = -EIO; + goto out; + } + err = server->nfs_client->rpc_ops->lookup(clone, parent->d_inode, + &path->dentry->d_name, + fh, fattr); + if (err < 0) + flavor = err; +out: + return flavor; +} +#else /* CONFIG_NFS_V4 */ +static inline rpc_authflavor_t nfs_lookup_with_sec(struct nfs_server *server, + struct dentry *parent, struct dentry *dentry, + struct path *path, struct nfs_fh *fh, + struct nfs_fattr *fattr) +{ + return -EPERM; +} +#endif /* CONFIG_NFS_V4 */ + /* * nfs_d_automount - Handle crossing a mountpoint on the server * @path - The mountpoint @@ -136,6 +232,7 @@ struct vfsmount *nfs_d_automount(struct path *path) struct nfs_fh *fh = NULL; struct nfs_fattr *fattr = NULL; int err; + rpc_authflavor_t flavor = 1; dprintk("--> nfs_d_automount()\n"); @@ -156,6 +253,13 @@ struct vfsmount *nfs_d_automount(struct path *path) err = server->nfs_client->rpc_ops->lookup(server->client, parent->d_inode, &path->dentry->d_name, fh, fattr); + if (err == -EPERM) { + flavor = nfs_lookup_with_sec(server, parent, path->dentry, path, fh, fattr); + if (flavor < 0) + err = flavor; + else + err = 0; + } dput(parent); if (err != 0) { mnt = ERR_PTR(err); @@ -165,7 +269,7 @@ struct vfsmount *nfs_d_automount(struct path *path) if (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) mnt = nfs_do_refmount(path->dentry); else - mnt = nfs_do_submount(path->dentry, fh, fattr); + mnt = nfs_do_submount(path->dentry, fh, fattr, flavor); if (IS_ERR(mnt)) goto out; @@ -232,17 +336,20 @@ static struct vfsmount *nfs_do_clone_mount(struct nfs_server *server, * @dentry - parent directory * @fh - filehandle for new root dentry * @fattr - attributes for new root inode + * @authflavor - security flavor to use when performing the mount * */ static struct vfsmount *nfs_do_submount(struct dentry *dentry, struct nfs_fh *fh, - struct nfs_fattr *fattr) + struct nfs_fattr *fattr, + rpc_authflavor_t authflavor) { struct nfs_clone_mount mountdata = { .sb = dentry->d_sb, .dentry = dentry, .fh = fh, .fattr = fattr, + .authflavor = authflavor, }; struct vfsmount *mnt = ERR_PTR(-ENOMEM); char *page = (char *) __get_free_page(GFP_USER); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 0b8bae119976..563463777d9d 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -87,6 +87,8 @@ static int nfs4_map_errors(int err) switch (err) { case -NFS4ERR_RESOURCE: return -EREMOTEIO; + case -NFS4ERR_WRONGSEC: + return -EPERM; case -NFS4ERR_BADOWNER: case -NFS4ERR_BADNAME: return -EINVAL; @@ -2383,6 +2385,16 @@ static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, return status; } +void nfs_fixup_secinfo_attributes(struct nfs_fattr *fattr, struct nfs_fh *fh) +{ + memset(fh, 0, sizeof(struct nfs_fh)); + fattr->fsid.major = 1; + fattr->valid |= NFS_ATTR_FATTR_TYPE | NFS_ATTR_FATTR_MODE | + NFS_ATTR_FATTR_NLINK | NFS_ATTR_FATTR_FSID | NFS_ATTR_FATTR_MOUNTPOINT; + fattr->mode = S_IFDIR | S_IRUGO | S_IXUGO; + fattr->nlink = 2; +} + static int nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr) { @@ -2392,6 +2404,8 @@ static int nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qst err = nfs4_handle_exception(NFS_SERVER(dir), _nfs4_proc_lookup(clnt, dir, name, fhandle, fattr), &exception); + if (err == -EPERM) + nfs_fixup_secinfo_attributes(fattr, fhandle); } while (exception.retry); return err; } diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 98afcf947aa4..21c3004b72d5 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -113,7 +113,7 @@ static int nfs4_stat_to_errno(int); #define encode_restorefh_maxsz (op_encode_hdr_maxsz) #define decode_restorefh_maxsz (op_decode_hdr_maxsz) #define encode_fsinfo_maxsz (encode_getattr_maxsz) -#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) +#define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 15) #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) #define decode_renew_maxsz (op_decode_hdr_maxsz) #define encode_setclientid_maxsz \ @@ -2966,6 +2966,7 @@ static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap) if (unlikely(!p)) goto out_overflow; bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; + return -be32_to_cpup(p); } return 0; out_overflow: @@ -3953,6 +3954,10 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, fattr->valid |= status; status = decode_attr_error(xdr, bitmap); + if (status == -NFS4ERR_WRONGSEC) { + nfs_fixup_secinfo_attributes(fattr, fh); + status = 0; + } if (status < 0) goto xdr_error; @@ -6314,10 +6319,6 @@ static struct { { NFS4ERR_SYMLINK, -ELOOP }, { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, { NFS4ERR_DEADLOCK, -EDEADLK }, - { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs - * to be handled by a - * middle-layer. - */ { -1, -EIO } }; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 3f32bf175840..fa1ba78ca2c8 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -82,6 +82,7 @@ struct nfs_fattr { #define NFS_ATTR_FATTR_CHANGE (1U << 17) #define NFS_ATTR_FATTR_PRECHANGE (1U << 18) #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */ +#define NFS_ATTR_FATTR_MOUNTPOINT (1U << 20) /* Treat as mountpoint */ #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ | NFS_ATTR_FATTR_MODE \ diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c index 8b4061049d76..6c844b01a1d1 100644 --- a/net/sunrpc/auth_gss/gss_mech_switch.c +++ b/net/sunrpc/auth_gss/gss_mech_switch.c @@ -160,6 +160,28 @@ gss_mech_get_by_name(const char *name) EXPORT_SYMBOL_GPL(gss_mech_get_by_name); +struct gss_api_mech * +gss_mech_get_by_OID(struct xdr_netobj *obj) +{ + struct gss_api_mech *pos, *gm = NULL; + + spin_lock(®istered_mechs_lock); + list_for_each_entry(pos, ®istered_mechs, gm_list) { + if (obj->len == pos->gm_oid.len) { + if (0 == memcmp(obj->data, pos->gm_oid.data, obj->len)) { + if (try_module_get(pos->gm_owner)) + gm = pos; + break; + } + } + } + spin_unlock(®istered_mechs_lock); + return gm; + +} + +EXPORT_SYMBOL_GPL(gss_mech_get_by_OID); + static inline int mech_supports_pseudoflavor(struct gss_api_mech *gm, u32 pseudoflavor) { -- cgit v1.2.3 From 8f70e95f9f4159184f557a1db60c909d7c1bd2e3 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker <bjschuma@netapp.com> Date: Thu, 24 Mar 2011 17:12:31 +0000 Subject: NFS: Determine initial mount security When sec=<something> is not presented as a mount option, we should attempt to determine what security flavor the server is using. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4proc.c | 33 +++++++++++++++++++++++++++++++-- include/linux/sunrpc/gss_api.h | 3 +++ net/sunrpc/auth_gss/gss_mech_switch.c | 16 ++++++++++++++++ 3 files changed, 50 insertions(+), 2 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 563463777d9d..f9150f03d640 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -41,6 +41,7 @@ #include <linux/string.h> #include <linux/slab.h> #include <linux/sunrpc/clnt.h> +#include <linux/sunrpc/gss_api.h> #include <linux/nfs.h> #include <linux/nfs4.h> #include <linux/nfs_fs.h> @@ -2191,15 +2192,43 @@ static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, return err; } +static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandle, + struct nfs_fsinfo *info, rpc_authflavor_t flavor) +{ + struct rpc_auth *auth; + int ret; + + auth = rpcauth_create(flavor, server->client); + if (!auth) { + ret = -EIO; + goto out; + } + ret = nfs4_lookup_root(server, fhandle, info); + if (ret < 0) + ret = -EAGAIN; +out: + return ret; +} + /* * get the file handle for the "/" directory on the server */ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *info) { - int status; + int i, len, status = 0; + rpc_authflavor_t flav_array[NFS_MAX_SECFLAVORS + 2]; - status = nfs4_lookup_root(server, fhandle, info); + flav_array[0] = RPC_AUTH_UNIX; + len = gss_mech_list_pseudoflavors(&flav_array[1]); + flav_array[1+len] = RPC_AUTH_NULL; + len += 2; + + for (i = 0; i < len; i++) { + status = nfs4_lookup_root_sec(server, fhandle, info, flav_array[i]); + if (status == 0) + break; + } if (status == 0) status = nfs4_server_capabilities(server, fhandle); if (status == 0) diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h index 5d8048beb051..332da61cf8b7 100644 --- a/include/linux/sunrpc/gss_api.h +++ b/include/linux/sunrpc/gss_api.h @@ -126,6 +126,9 @@ struct gss_api_mech *gss_mech_get_by_name(const char *); /* Similar, but get by pseudoflavor. */ struct gss_api_mech *gss_mech_get_by_pseudoflavor(u32); +/* Fill in an array with a list of supported pseudoflavors */ +int gss_mech_list_pseudoflavors(u32 *); + /* Just increments the mechanism's reference count and returns its input: */ struct gss_api_mech * gss_mech_get(struct gss_api_mech *); diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c index 6c844b01a1d1..e3c36a274412 100644 --- a/net/sunrpc/auth_gss/gss_mech_switch.c +++ b/net/sunrpc/auth_gss/gss_mech_switch.c @@ -215,6 +215,22 @@ gss_mech_get_by_pseudoflavor(u32 pseudoflavor) EXPORT_SYMBOL_GPL(gss_mech_get_by_pseudoflavor); +int gss_mech_list_pseudoflavors(rpc_authflavor_t *array_ptr) +{ + struct gss_api_mech *pos = NULL; + int i = 0; + + spin_lock(®istered_mechs_lock); + list_for_each_entry(pos, ®istered_mechs, gm_list) { + array_ptr[i] = pos->gm_pfs->pseudoflavor; + i++; + } + spin_unlock(®istered_mechs_lock); + return i; +} + +EXPORT_SYMBOL_GPL(gss_mech_list_pseudoflavors); + u32 gss_svc_to_pseudoflavor(struct gss_api_mech *gm, u32 service) { -- cgit v1.2.3 From 62a7375e5d77d654695297c4b39d5d740d901184 Mon Sep 17 00:00:00 2001 From: Ian Kent <raven@themaw.net> Date: Fri, 25 Mar 2011 01:51:02 +0800 Subject: vfs - check non-mountpoint dentry might block in __follow_mount_rcu() When following a mount in rcu-walk mode we must check if the incoming dentry is telling us it may need to block, even if it isn't actually a mountpoint. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/namei.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index d0066e17d45d..3cb616d38d9c 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -992,6 +992,12 @@ int follow_down_one(struct path *path) return 0; } +static inline bool managed_dentry_might_block(struct dentry *dentry) +{ + return (dentry->d_flags & DCACHE_MANAGE_TRANSIT && + dentry->d_op->d_manage(dentry, true) < 0); +} + /* * Skip to top of mountpoint pile in rcuwalk mode. We abort the rcu-walk if we * meet a managed dentry and we're not walking to "..". True is returned to @@ -1000,19 +1006,26 @@ int follow_down_one(struct path *path) static bool __follow_mount_rcu(struct nameidata *nd, struct path *path, struct inode **inode, bool reverse_transit) { - while (d_mountpoint(path->dentry)) { + for (;;) { struct vfsmount *mounted; - if (unlikely(path->dentry->d_flags & DCACHE_MANAGE_TRANSIT) && - !reverse_transit && - path->dentry->d_op->d_manage(path->dentry, true) < 0) + /* + * Don't forget we might have a non-mountpoint managed dentry + * that wants to block transit. + */ + *inode = path->dentry->d_inode; + if (!reverse_transit && + unlikely(managed_dentry_might_block(path->dentry))) return false; + + if (!d_mountpoint(path->dentry)) + break; + mounted = __lookup_mnt(path->mnt, path->dentry, 1); if (!mounted) break; path->mnt = mounted; path->dentry = mounted->mnt_root; nd->seq = read_seqcount_begin(&path->dentry->d_seq); - *inode = path->dentry->d_inode; } if (unlikely(path->dentry->d_flags & DCACHE_NEED_AUTOMOUNT)) -- cgit v1.2.3 From 6f71d7927c9a9efb7d7e9e6d227d5e246a9c5bd7 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Date: Thu, 24 Mar 2011 11:47:51 -0700 Subject: mlx4_en: Removing HW info from ethtool -i report. Avoiding abuse of ethtool_drvinfo.driver field. HW specific info can be retrieved using lspci. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/mlx4/en_ethtool.c | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) diff --git a/drivers/net/mlx4/en_ethtool.c b/drivers/net/mlx4/en_ethtool.c index 62ace6c72b42..d54b7abf0225 100644 --- a/drivers/net/mlx4/en_ethtool.c +++ b/drivers/net/mlx4/en_ethtool.c @@ -45,20 +45,7 @@ mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; - switch (mdev->dev->rev_id) { - case 0xa0: - if (dev->dev_id >= MLX4_EN_CX3_LOW_ID && dev->dev_id <= MLX4_EN_CX3_HIGH_ID) - sprintf(drvinfo->driver, DRV_NAME " (%s_CX-3)", mdev->dev->board_id); - else - sprintf(drvinfo->driver, DRV_NAME " (%s_CX)", mdev->dev->board_id); - break; - case 0xb0: - sprintf(drvinfo->driver, DRV_NAME " (%s_CX-2)", mdev->dev->board_id); - break; - default: - sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id); - break; - } + strncpy(drvinfo->driver, DRV_NAME, 32); strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32); sprintf(drvinfo->fw_version, "%d.%d.%d", (u16) (mdev->dev->caps.fw_ver >> 32), -- cgit v1.2.3 From fcd13f42c9d6ab7b1024b9b7125a2e8db3cc00b2 Mon Sep 17 00:00:00 2001 From: Eric Dumazet <eric.dumazet@gmail.com> Date: Thu, 24 Mar 2011 07:01:24 +0000 Subject: ipv4: fix fib metrics Alessandro Suardi reported that we could not change route metrics : ip ro change default .... advmss 1400 This regression came with commit 9c150e82ac50 (Allocate fib metrics dynamically). fib_metrics is no longer an array, but a pointer to an array. Reported-by: Alessandro Suardi <alessandro.suardi@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Alessandro Suardi <alessandro.suardi@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/ipv4/fib_semantics.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 622ac4c95026..75b9fb5d5d37 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -251,7 +251,7 @@ static struct fib_info *fib_find_info(const struct fib_info *nfi) nfi->fib_prefsrc == fi->fib_prefsrc && nfi->fib_priority == fi->fib_priority && memcmp(nfi->fib_metrics, fi->fib_metrics, - sizeof(fi->fib_metrics)) == 0 && + sizeof(u32) * RTAX_MAX) == 0 && ((nfi->fib_flags ^ fi->fib_flags) & ~RTNH_F_DEAD) == 0 && (nfi->fib_nhs == 0 || nh_comp(fi, nfi) == 0)) return fi; -- cgit v1.2.3 From 3c3199852905ceb90a70e98777e71d369a5f0823 Mon Sep 17 00:00:00 2001 From: Ian Kent <raven@themaw.net> Date: Fri, 25 Mar 2011 01:51:08 +0800 Subject: autofs4 - reinstate last used update on access When direct (and offset) mounts were introduced the the last used timeout could no longer be updated in ->d_revalidate(). This is because covered direct mounts would be followed over without calling the autofs file system. As a result the definition of the busyness check for all entries was changed to be "actually busy" being an open file or working directory within the automount. But now we have a call back in the follow so the last used update on any access can be re-instated. This requires DCACHE_MANAGE_TRANSIT to always be set. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/autofs4/expire.c | 13 ++----------- fs/autofs4/root.c | 35 ++++++++++++----------------------- 2 files changed, 14 insertions(+), 34 deletions(-) diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index f43100b9662b..c896dd6c1ea9 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -294,7 +294,6 @@ struct dentry *autofs4_expire_direct(struct super_block *sb, spin_unlock(&sbi->fs_lock); return NULL; } - managed_dentry_set_transit(root); if (!autofs4_direct_busy(mnt, root, timeout, do_now)) { struct autofs_info *ino = autofs4_dentry_ino(root); ino->flags |= AUTOFS_INF_EXPIRING; @@ -302,7 +301,6 @@ struct dentry *autofs4_expire_direct(struct super_block *sb, spin_unlock(&sbi->fs_lock); return root; } - managed_dentry_clear_transit(root); spin_unlock(&sbi->fs_lock); dput(root); @@ -341,8 +339,7 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb, ino = autofs4_dentry_ino(dentry); /* No point expiring a pending mount */ if (ino->flags & AUTOFS_INF_PENDING) - goto cont; - managed_dentry_set_transit(dentry); + goto next; /* * Case 1: (i) indirect mount or top level pseudo direct mount @@ -402,8 +399,6 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb, } } next: - managed_dentry_clear_transit(dentry); -cont: spin_unlock(&sbi->fs_lock); } return NULL; @@ -484,8 +479,6 @@ int autofs4_expire_run(struct super_block *sb, spin_lock(&sbi->fs_lock); ino = autofs4_dentry_ino(dentry); ino->flags &= ~AUTOFS_INF_EXPIRING; - if (!d_unhashed(dentry)) - managed_dentry_clear_transit(dentry); complete_all(&ino->expire_complete); spin_unlock(&sbi->fs_lock); @@ -513,9 +506,7 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt, spin_lock(&sbi->fs_lock); ino->flags &= ~AUTOFS_INF_EXPIRING; spin_lock(&dentry->d_lock); - if (ret) - __managed_dentry_clear_transit(dentry); - else { + if (!ret) { if ((IS_ROOT(dentry) || (autofs_type_indirect(sbi->type) && IS_ROOT(dentry->d_parent))) && diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index e6f84d26f4cf..3a93d3552486 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c @@ -275,17 +275,16 @@ static int autofs4_mount_wait(struct dentry *dentry) { struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb); struct autofs_info *ino = autofs4_dentry_ino(dentry); - int status; + int status = 0; if (ino->flags & AUTOFS_INF_PENDING) { DPRINTK("waiting for mount name=%.*s", dentry->d_name.len, dentry->d_name.name); status = autofs4_wait(sbi, dentry, NFY_MOUNT); DPRINTK("mount wait done status=%d", status); - ino->last_used = jiffies; - return status; } - return 0; + ino->last_used = jiffies; + return status; } static int do_expire_wait(struct dentry *dentry) @@ -319,9 +318,12 @@ static struct dentry *autofs4_mountpoint_changed(struct path *path) */ if (autofs_type_indirect(sbi->type) && d_unhashed(dentry)) { struct dentry *parent = dentry->d_parent; + struct autofs_info *ino; struct dentry *new = d_lookup(parent, &dentry->d_name); if (!new) return NULL; + ino = autofs4_dentry_ino(new); + ino->last_used = jiffies; dput(path->dentry); path->dentry = new; } @@ -338,18 +340,6 @@ static struct vfsmount *autofs4_d_automount(struct path *path) DPRINTK("dentry=%p %.*s", dentry, dentry->d_name.len, dentry->d_name.name); - /* - * Someone may have manually umounted this or it was a submount - * that has gone away. - */ - spin_lock(&dentry->d_lock); - if (!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs)) { - if (!(dentry->d_flags & DCACHE_MANAGE_TRANSIT) && - (dentry->d_flags & DCACHE_NEED_AUTOMOUNT)) - __managed_dentry_set_transit(path->dentry); - } - spin_unlock(&dentry->d_lock); - /* The daemon never triggers a mount. */ if (autofs4_oz_mode(sbi)) return NULL; @@ -418,18 +408,17 @@ static struct vfsmount *autofs4_d_automount(struct path *path) done: if (!(ino->flags & AUTOFS_INF_EXPIRING)) { /* - * Any needed mounting has been completed and the path updated - * so turn this into a normal dentry so we don't continually - * call ->d_automount() and ->d_manage(). - */ - spin_lock(&dentry->d_lock); - __managed_dentry_clear_transit(dentry); - /* + * Any needed mounting has been completed and the path + * updated so clear DCACHE_NEED_AUTOMOUNT so we don't + * call ->d_automount() on rootless multi-mounts since + * it can lead to an incorrect ELOOP error return. + * * Only clear DMANAGED_AUTOMOUNT for rootless multi-mounts and * symlinks as in all other cases the dentry will be covered by * an actual mount so ->d_automount() won't be called during * the follow. */ + spin_lock(&dentry->d_lock); if ((!d_mountpoint(dentry) && !list_empty(&dentry->d_subdirs)) || (dentry->d_inode && S_ISLNK(dentry->d_inode->i_mode))) -- cgit v1.2.3 From f9398c233e3201874395eea8558eb616fb198648 Mon Sep 17 00:00:00 2001 From: Ian Kent <raven@themaw.net> Date: Fri, 25 Mar 2011 01:51:14 +0800 Subject: autofs4 - fix dentry leak in autofs4_expire_direct() There is a missing dput() when returning from autofs4_expire_direct() when we see that the dentry is already a pending mount. Signed-off-by: Ian Kent <raven@themaw.net> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/autofs4/expire.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index c896dd6c1ea9..c403abcc725b 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -290,10 +290,8 @@ struct dentry *autofs4_expire_direct(struct super_block *sb, spin_lock(&sbi->fs_lock); ino = autofs4_dentry_ino(root); /* No point expiring a pending mount */ - if (ino->flags & AUTOFS_INF_PENDING) { - spin_unlock(&sbi->fs_lock); - return NULL; - } + if (ino->flags & AUTOFS_INF_PENDING) + goto out; if (!autofs4_direct_busy(mnt, root, timeout, do_now)) { struct autofs_info *ino = autofs4_dentry_ino(root); ino->flags |= AUTOFS_INF_EXPIRING; @@ -301,6 +299,7 @@ struct dentry *autofs4_expire_direct(struct super_block *sb, spin_unlock(&sbi->fs_lock); return root; } +out: spin_unlock(&sbi->fs_lock); dput(root); -- cgit v1.2.3 From d4a85e35d1465da055264407d8395e84483084e6 Mon Sep 17 00:00:00 2001 From: Ian Kent <raven@themaw.net> Date: Fri, 25 Mar 2011 01:51:20 +0800 Subject: autofs4 - fix autofs4_expire_indirect() traversal The vfs-scale changes changed the traversal used in autofs4_expire_indirect() from a list to a depth first tree traversal which isn't right. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/autofs4/expire.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 51 insertions(+), 1 deletion(-) diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index c403abcc725b..bc482e07b925 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -86,6 +86,56 @@ done: return status; } +/* + * Calculate and dget next entry in the subdirs list under root. + */ +static struct dentry *get_next_positive_subdir(struct dentry *prev, + struct dentry *root) +{ + struct list_head *next; + struct dentry *p, *q; + + spin_lock(&autofs4_lock); + + if (prev == NULL) { + spin_lock(&root->d_lock); + prev = dget_dlock(root); + next = prev->d_subdirs.next; + p = prev; + goto start; + } + + p = prev; + spin_lock(&p->d_lock); +again: + next = p->d_u.d_child.next; +start: + if (next == &root->d_subdirs) { + spin_unlock(&p->d_lock); + spin_unlock(&autofs4_lock); + dput(prev); + return NULL; + } + + q = list_entry(next, struct dentry, d_u.d_child); + + spin_lock_nested(&q->d_lock, DENTRY_D_LOCK_NESTED); + /* Negative dentry - try next */ + if (!simple_positive(q)) { + spin_unlock(&p->d_lock); + p = q; + goto again; + } + dget_dlock(q); + spin_unlock(&q->d_lock); + spin_unlock(&p->d_lock); + spin_unlock(&autofs4_lock); + + dput(prev); + + return q; +} + /* * Calculate and dget next entry in top down tree traversal. */ @@ -333,7 +383,7 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb, timeout = sbi->exp_timeout; dentry = NULL; - while ((dentry = get_next_positive_dentry(dentry, root))) { + while ((dentry = get_next_positive_subdir(dentry, root))) { spin_lock(&sbi->fs_lock); ino = autofs4_dentry_ino(dentry); /* No point expiring a pending mount */ -- cgit v1.2.3 From 83fb96bfc792e5ca693e53f7fd878d51b8493da8 Mon Sep 17 00:00:00 2001 From: Ian Kent <raven@themaw.net> Date: Fri, 25 Mar 2011 01:51:25 +0800 Subject: autofs4 - fix d_manage() return on rcu-walk The daemon never needs to block and, in the rcu-walk case an error return isn't used, so always return zero. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/autofs4/root.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index 3a93d3552486..ebbfa0ce6d7b 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c @@ -444,6 +444,8 @@ int autofs4_d_manage(struct dentry *dentry, bool rcu_walk) /* The daemon never waits. */ if (autofs4_oz_mode(sbi)) { + if (rcu_walk) + return 0; if (!d_mountpoint(dentry)) return -EISDIR; return 0; -- cgit v1.2.3 From e7854723d0f3626f260c880d8db8e5136f29db19 Mon Sep 17 00:00:00 2001 From: Ian Kent <raven@themaw.net> Date: Fri, 25 Mar 2011 01:51:31 +0800 Subject: autofs4 - remove autofs4_lock The autofs4_lock introduced by the rcu-walk changes has unnecessarily broad scope. The locking is better handled by the per-autofs super block lookup_lock. Signed-off-by: Ian Kent <raven@themaw.net> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/autofs4/autofs_i.h | 2 -- fs/autofs4/expire.c | 18 ++++++++++-------- fs/autofs4/root.c | 25 +++++++------------------ fs/autofs4/waitq.c | 6 +++--- 4 files changed, 20 insertions(+), 31 deletions(-) diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h index 54f923792728..475f9c597cb7 100644 --- a/fs/autofs4/autofs_i.h +++ b/fs/autofs4/autofs_i.h @@ -61,8 +61,6 @@ do { \ current->pid, __func__, ##args); \ } while (0) -extern spinlock_t autofs4_lock; - /* Unified info structure. This is pointed to by both the dentry and inode structures. Each file in the filesystem has an instance of this structure. It holds a reference to the dentry, so dentries are never diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index bc482e07b925..450f529a4eae 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -92,10 +92,11 @@ done: static struct dentry *get_next_positive_subdir(struct dentry *prev, struct dentry *root) { + struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb); struct list_head *next; struct dentry *p, *q; - spin_lock(&autofs4_lock); + spin_lock(&sbi->lookup_lock); if (prev == NULL) { spin_lock(&root->d_lock); @@ -112,7 +113,7 @@ again: start: if (next == &root->d_subdirs) { spin_unlock(&p->d_lock); - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->lookup_lock); dput(prev); return NULL; } @@ -129,7 +130,7 @@ start: dget_dlock(q); spin_unlock(&q->d_lock); spin_unlock(&p->d_lock); - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->lookup_lock); dput(prev); @@ -142,13 +143,14 @@ start: static struct dentry *get_next_positive_dentry(struct dentry *prev, struct dentry *root) { + struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb); struct list_head *next; struct dentry *p, *ret; if (prev == NULL) return dget(root); - spin_lock(&autofs4_lock); + spin_lock(&sbi->lookup_lock); relock: p = prev; spin_lock(&p->d_lock); @@ -160,7 +162,7 @@ again: if (p == root) { spin_unlock(&p->d_lock); - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->lookup_lock); dput(prev); return NULL; } @@ -190,7 +192,7 @@ again: dget_dlock(ret); spin_unlock(&ret->d_lock); spin_unlock(&p->d_lock); - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->lookup_lock); dput(prev); @@ -459,13 +461,13 @@ found: ino->flags |= AUTOFS_INF_EXPIRING; init_completion(&ino->expire_complete); spin_unlock(&sbi->fs_lock); - spin_lock(&autofs4_lock); + spin_lock(&sbi->lookup_lock); spin_lock(&expired->d_parent->d_lock); spin_lock_nested(&expired->d_lock, DENTRY_D_LOCK_NESTED); list_move(&expired->d_parent->d_subdirs, &expired->d_u.d_child); spin_unlock(&expired->d_lock); spin_unlock(&expired->d_parent->d_lock); - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->lookup_lock); return expired; } diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index ebbfa0ce6d7b..96804a17bbd0 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c @@ -23,8 +23,6 @@ #include "autofs_i.h" -DEFINE_SPINLOCK(autofs4_lock); - static int autofs4_dir_symlink(struct inode *,struct dentry *,const char *); static int autofs4_dir_unlink(struct inode *,struct dentry *); static int autofs4_dir_rmdir(struct inode *,struct dentry *); @@ -125,15 +123,15 @@ static int autofs4_dir_open(struct inode *inode, struct file *file) * autofs file system so just let the libfs routines handle * it. */ - spin_lock(&autofs4_lock); + spin_lock(&sbi->lookup_lock); spin_lock(&dentry->d_lock); if (!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs)) { spin_unlock(&dentry->d_lock); - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->lookup_lock); return -ENOENT; } spin_unlock(&dentry->d_lock); - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->lookup_lock); out: return dcache_dir_open(inode, file); @@ -171,7 +169,6 @@ static struct dentry *autofs4_lookup_active(struct dentry *dentry) const unsigned char *str = name->name; struct list_head *p, *head; - spin_lock(&autofs4_lock); spin_lock(&sbi->lookup_lock); head = &sbi->active_list; list_for_each(p, head) { @@ -204,14 +201,12 @@ static struct dentry *autofs4_lookup_active(struct dentry *dentry) dget_dlock(active); spin_unlock(&active->d_lock); spin_unlock(&sbi->lookup_lock); - spin_unlock(&autofs4_lock); return active; } next: spin_unlock(&active->d_lock); } spin_unlock(&sbi->lookup_lock); - spin_unlock(&autofs4_lock); return NULL; } @@ -226,7 +221,6 @@ static struct dentry *autofs4_lookup_expiring(struct dentry *dentry) const unsigned char *str = name->name; struct list_head *p, *head; - spin_lock(&autofs4_lock); spin_lock(&sbi->lookup_lock); head = &sbi->expiring_list; list_for_each(p, head) { @@ -259,14 +253,12 @@ static struct dentry *autofs4_lookup_expiring(struct dentry *dentry) dget_dlock(expiring); spin_unlock(&expiring->d_lock); spin_unlock(&sbi->lookup_lock); - spin_unlock(&autofs4_lock); return expiring; } next: spin_unlock(&expiring->d_lock); } spin_unlock(&sbi->lookup_lock); - spin_unlock(&autofs4_lock); return NULL; } @@ -603,12 +595,12 @@ static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry) dir->i_mtime = CURRENT_TIME; - spin_lock(&autofs4_lock); - autofs4_add_expiring(dentry); + spin_lock(&sbi->lookup_lock); + __autofs4_add_expiring(dentry); spin_lock(&dentry->d_lock); __d_drop(dentry); spin_unlock(&dentry->d_lock); - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->lookup_lock); return 0; } @@ -677,20 +669,17 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry) if (!autofs4_oz_mode(sbi)) return -EACCES; - spin_lock(&autofs4_lock); spin_lock(&sbi->lookup_lock); spin_lock(&dentry->d_lock); if (!list_empty(&dentry->d_subdirs)) { spin_unlock(&dentry->d_lock); spin_unlock(&sbi->lookup_lock); - spin_unlock(&autofs4_lock); return -ENOTEMPTY; } __autofs4_add_expiring(dentry); - spin_unlock(&sbi->lookup_lock); __d_drop(dentry); spin_unlock(&dentry->d_lock); - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->lookup_lock); if (sbi->version < 5) autofs_clear_leaf_automount_flags(dentry); diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c index 56010056b2e6..25435987d6ae 100644 --- a/fs/autofs4/waitq.c +++ b/fs/autofs4/waitq.c @@ -197,12 +197,12 @@ rename_retry: seq = read_seqbegin(&rename_lock); rcu_read_lock(); - spin_lock(&autofs4_lock); + spin_lock(&sbi->fs_lock); for (tmp = dentry ; tmp != root ; tmp = tmp->d_parent) len += tmp->d_name.len + 1; if (!len || --len > NAME_MAX) { - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->fs_lock); rcu_read_unlock(); if (read_seqretry(&rename_lock, seq)) goto rename_retry; @@ -218,7 +218,7 @@ rename_retry: p -= tmp->d_name.len; strncpy(p, tmp->d_name.name, tmp->d_name.len); } - spin_unlock(&autofs4_lock); + spin_unlock(&sbi->fs_lock); rcu_read_unlock(); if (read_seqretry(&rename_lock, seq)) goto rename_retry; -- cgit v1.2.3 From 3dc8fe4dca9cd3e4aa828ed36451e2bcfd2350da Mon Sep 17 00:00:00 2001 From: Jesper Juhl <jj@chaosbits.net> Date: Fri, 25 Mar 2011 01:51:37 +0800 Subject: autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd() In fs/autofs4/dev-ioctl.c::autofs_dev_ioctl_setpipefd() we call fget(), which may return NULL, but we do not explicitly test for that NULL return so we may end up dereferencing a NULL pointer - bad. When I originally submitted this patch I had chosen EBUSY as the return value to use if this happens. Ian Kent was kind enough to explain why that would most likely be wrong and why EBADF should most likely be used instead. This version of the patch uses EBADF. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/autofs4/dev-ioctl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c index 1442da4860e5..509fe1eb66ae 100644 --- a/fs/autofs4/dev-ioctl.c +++ b/fs/autofs4/dev-ioctl.c @@ -372,6 +372,10 @@ static int autofs_dev_ioctl_setpipefd(struct file *fp, return -EBUSY; } else { struct file *pipe = fget(pipefd); + if (!pipe) { + err = -EBADF; + goto out; + } if (!pipe->f_op || !pipe->f_op->write) { err = -EPIPE; fput(pipe); -- cgit v1.2.3 From f9b615de4663c4b852e07257e9f967df6a0161c0 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 21:26:46 +0200 Subject: slub: Fix debugobjects with lockless fastpath On Thu, 24 Mar 2011, Ingo Molnar wrote: > RIP: 0010:[<ffffffff810570a9>] [<ffffffff810570a9>] get_next_timer_interrupt+0x119/0x260 That's a typical timer crash, but you were unable to debug it with debugobjects because commit d3f661d6 broke those. Cc: Christoph Lameter <cl@linux.com> Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Pekka Enberg <penberg@kernel.org> --- mm/slub.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 93de30db95f5..a6a783594ad4 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -849,11 +849,11 @@ static inline void slab_free_hook(struct kmem_cache *s, void *x) local_irq_save(flags); kmemcheck_slab_free(s, x, s->objsize); debug_check_no_locks_freed(x, s->objsize); - if (!(s->flags & SLAB_DEBUG_OBJECTS)) - debug_check_no_obj_freed(x, s->objsize); local_irq_restore(flags); } #endif + if (!(s->flags & SLAB_DEBUG_OBJECTS)) + debug_check_no_obj_freed(x, s->objsize); } /* -- cgit v1.2.3 From 7776e233ef32d9e8152dbb31328367c65288abcf Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Sun, 6 Feb 2011 17:29:01 +0100 Subject: avr32: At32ap: Convert extint irq_chip to new functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> LKML-Reference: <20110206163008.996220791@linutronix.de> --- arch/avr32/mach-at32ap/extint.c | 45 +++++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 22 deletions(-) diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c index e9d12058ffd3..bf3b2c59c8e1 100644 --- a/arch/avr32/mach-at32ap/extint.c +++ b/arch/avr32/mach-at32ap/extint.c @@ -61,35 +61,36 @@ struct eic { static struct eic *nmi_eic; static bool nmi_enabled; -static void eic_ack_irq(unsigned int irq) +static void eic_ack_irq(struct irq_chip *d) { - struct eic *eic = get_irq_chip_data(irq); - eic_writel(eic, ICR, 1 << (irq - eic->first_irq)); + struct eic *eic = irq_data_get_irq_chip_data(data); + eic_writel(eic, ICR, 1 << (d->irq - eic->first_irq)); } -static void eic_mask_irq(unsigned int irq) +static void eic_mask_irq(struct irq_chip *d) { - struct eic *eic = get_irq_chip_data(irq); - eic_writel(eic, IDR, 1 << (irq - eic->first_irq)); + struct eic *eic = irq_data_get_irq_chip_data(data); + eic_writel(eic, IDR, 1 << (d->irq - eic->first_irq)); } -static void eic_mask_ack_irq(unsigned int irq) +static void eic_mask_ack_irq(struct irq_chip *d) { - struct eic *eic = get_irq_chip_data(irq); - eic_writel(eic, ICR, 1 << (irq - eic->first_irq)); - eic_writel(eic, IDR, 1 << (irq - eic->first_irq)); + struct eic *eic = irq_data_get_irq_chip_data(data); + eic_writel(eic, ICR, 1 << (d->irq - eic->first_irq)); + eic_writel(eic, IDR, 1 << (d->irq - eic->first_irq)); } -static void eic_unmask_irq(unsigned int irq) +static void eic_unmask_irq(struct irq_chip *d) { - struct eic *eic = get_irq_chip_data(irq); - eic_writel(eic, IER, 1 << (irq - eic->first_irq)); + struct eic *eic = irq_data_get_irq_chip_data(data); + eic_writel(eic, IER, 1 << (d->irq - eic->first_irq)); } -static int eic_set_irq_type(unsigned int irq, unsigned int flow_type) +static int eic_set_irq_type(struct irq_chip *d, unsigned int flow_type) { - struct eic *eic = get_irq_chip_data(irq); + struct eic *eic = irq_data_get_irq_chip_data(data); struct irq_desc *desc; + unsigned int irq = d->irq; unsigned int i = irq - eic->first_irq; u32 mode, edge, level; int ret = 0; @@ -98,7 +99,7 @@ static int eic_set_irq_type(unsigned int irq, unsigned int flow_type) if (flow_type == IRQ_TYPE_NONE) flow_type = IRQ_TYPE_LEVEL_LOW; - desc = &irq_desc[irq]; + desc = irq_to_desc(irq); mode = eic_readl(eic, MODE); edge = eic_readl(eic, EDGE); @@ -145,16 +146,16 @@ static int eic_set_irq_type(unsigned int irq, unsigned int flow_type) static struct irq_chip eic_chip = { .name = "eic", - .ack = eic_ack_irq, - .mask = eic_mask_irq, - .mask_ack = eic_mask_ack_irq, - .unmask = eic_unmask_irq, - .set_type = eic_set_irq_type, + .irq_ack = eic_ack_irq, + .irq_mask = eic_mask_irq, + .irq_mask_ack = eic_mask_ack_irq, + .irq_unmask = eic_unmask_irq, + .irq_set_type = eic_set_irq_type, }; static void demux_eic_irq(unsigned int irq, struct irq_desc *desc) { - struct eic *eic = desc->handler_data; + struct eic *eic = get_irq_desc_data(desc); unsigned long status, pending; unsigned int i; -- cgit v1.2.3 From 3972f6917d05b4350c9b5ab2aaa623cd52fa4bc9 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Sun, 6 Feb 2011 17:29:02 +0100 Subject: avr32: At32ap: Convert intc irq_chip to new functions Also replace the open coded handler call with the proper wrapper. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> LKML-Reference: <20110206163009.096308633@linutronix.de> --- arch/avr32/mach-at32ap/intc.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c index 994c4545e2b7..d9270d64b4c9 100644 --- a/arch/avr32/mach-at32ap/intc.c +++ b/arch/avr32/mach-at32ap/intc.c @@ -34,12 +34,12 @@ extern struct platform_device at32_intc0_device; * TODO: We may be able to implement mask/unmask by setting IxM flags * in the status register. */ -static void intc_mask_irq(unsigned int irq) +static void intc_mask_irq(struct irq_data *d) { } -static void intc_unmask_irq(unsigned int irq) +static void intc_unmask_irq(struct irq_data *d) { } @@ -47,8 +47,8 @@ static void intc_unmask_irq(unsigned int irq) static struct intc intc0 = { .chip = { .name = "intc", - .mask = intc_mask_irq, - .unmask = intc_unmask_irq, + .irq_mask = intc_mask_irq, + .irq_unmask = intc_unmask_irq, }, }; @@ -57,7 +57,6 @@ static struct intc intc0 = { */ asmlinkage void do_IRQ(int level, struct pt_regs *regs) { - struct irq_desc *desc; struct pt_regs *old_regs; unsigned int irq; unsigned long status_reg; @@ -69,8 +68,7 @@ asmlinkage void do_IRQ(int level, struct pt_regs *regs) irq_enter(); irq = intc_readl(&intc0, INTCAUSE0 - 4 * level); - desc = irq_desc + irq; - desc->handle_irq(irq, desc); + generic_handle_irq(irq); /* * Clear all interrupt level masks so that we may handle -- cgit v1.2.3 From f2f9c6508dc15fdcf5902047d47a86f4f6466459 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Sun, 6 Feb 2011 17:29:03 +0100 Subject: avr32: At32ap: Convert pop irq_chip to new functions Also replace the open coded handler call with the proper wrapper. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> LKML-Reference: <20110206163009.190112353@linutronix.de> --- arch/avr32/mach-at32ap/pio.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c index 09a274c9d0b7..9b121d6b0997 100644 --- a/arch/avr32/mach-at32ap/pio.c +++ b/arch/avr32/mach-at32ap/pio.c @@ -249,23 +249,23 @@ static void gpio_set(struct gpio_chip *chip, unsigned offset, int value) /* GPIO IRQ support */ -static void gpio_irq_mask(unsigned irq) +static void gpio_irq_mask(struct irq_data *d) { - unsigned gpio = irq_to_gpio(irq); + unsigned gpio = irq_to_gpio(d->irq); struct pio_device *pio = &pio_dev[gpio >> 5]; pio_writel(pio, IDR, 1 << (gpio & 0x1f)); } -static void gpio_irq_unmask(unsigned irq) +static void gpio_irq_unmask(struct irq_data *d)) { - unsigned gpio = irq_to_gpio(irq); + unsigned gpio = irq_to_gpio(d->irq); struct pio_device *pio = &pio_dev[gpio >> 5]; pio_writel(pio, IER, 1 << (gpio & 0x1f)); } -static int gpio_irq_type(unsigned irq, unsigned type) +static int gpio_irq_type(struct irq_data *d, unsigned type) { if (type != IRQ_TYPE_EDGE_BOTH && type != IRQ_TYPE_NONE) return -EINVAL; @@ -275,20 +275,19 @@ static int gpio_irq_type(unsigned irq, unsigned type) static struct irq_chip gpio_irqchip = { .name = "gpio", - .mask = gpio_irq_mask, - .unmask = gpio_irq_unmask, - .set_type = gpio_irq_type, + .irq_mask = gpio_irq_mask, + .irq_unmask = gpio_irq_unmask, + .irq_set_type = gpio_irq_type, }; static void gpio_irq_handler(unsigned irq, struct irq_desc *desc) { - struct pio_device *pio = get_irq_chip_data(irq); + struct pio_device *pio = get_irq_desc_chip_data(desc); unsigned gpio_irq; gpio_irq = (unsigned) get_irq_data(irq); for (;;) { u32 isr; - struct irq_desc *d; /* ack pending GPIO interrupts */ isr = pio_readl(pio, ISR) & pio_readl(pio, IMR); @@ -301,9 +300,7 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc) isr &= ~(1 << i); i += gpio_irq; - d = &irq_desc[i]; - - d->handle_irq(i, d); + generic_handle_irq(i); } while (isr); } } -- cgit v1.2.3 From 250153361fa804985392866fa0622a787dd60109 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Sun, 6 Feb 2011 17:29:04 +0100 Subject: avr32: Use generic IRQ config, enable GENERIC_HARDIRQS_NO_DEPRECATED Use the generic Kconfig for interrupts and enable GENERIC_HARDIRQS_NO_DEPRECATED. All conversions done. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> LKML-Reference: <20110206163009.289833604@linutronix.de> --- arch/avr32/Kconfig | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index cd2062fe0f61..c0ddc9355920 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -6,6 +6,10 @@ config AVR32 select HAVE_CLK select HAVE_OPROFILE select HAVE_KPROBES + select HAVE_GENERIC_HARDIRQS + select GENERIC_IRQ_PROBE + select HARDIRQS_SW_RESEND + select GENERIC_HARDIRQS_NO_DEPRECATED help AVR32 is a high-performance 32-bit RISC microprocessor core, designed for cost-sensitive embedded applications, with particular @@ -17,9 +21,6 @@ config AVR32 config GENERIC_GPIO def_bool y -config GENERIC_HARDIRQS - def_bool y - config STACKTRACE_SUPPORT def_bool y @@ -29,12 +30,6 @@ config LOCKDEP_SUPPORT config TRACE_IRQFLAGS_SUPPORT def_bool y -config HARDIRQS_SW_RESEND - def_bool y - -config GENERIC_IRQ_PROBE - def_bool y - config RWSEM_GENERIC_SPINLOCK def_bool y -- cgit v1.2.3 From d75f1bfdbccb38310088b98e9866273f5d7bda14 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 16:39:32 +0100 Subject: avr: Cleanup genirq namespace Scripted conversion to new function names with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> --- arch/avr32/boards/atngw100/mrmt.c | 2 +- arch/avr32/boards/atngw100/setup.c | 2 +- arch/avr32/mach-at32ap/extint.c | 14 +++++++------- arch/avr32/mach-at32ap/intc.c | 2 +- arch/avr32/mach-at32ap/pio.c | 14 +++++++------- 5 files changed, 17 insertions(+), 17 deletions(-) diff --git a/arch/avr32/boards/atngw100/mrmt.c b/arch/avr32/boards/atngw100/mrmt.c index 7919be311f4a..f91431963452 100644 --- a/arch/avr32/boards/atngw100/mrmt.c +++ b/arch/avr32/boards/atngw100/mrmt.c @@ -301,7 +301,7 @@ static int __init mrmt1_init(void) /* Select the Touchscreen interrupt pin mode */ at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ), GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH); - set_irq_type( AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING ); + irq_set_irq_type(AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING); at32_spi_setup_slaves(0,spi01_board_info,ARRAY_SIZE(spi01_board_info)); spi_register_board_info(spi01_board_info,ARRAY_SIZE(spi01_board_info)); #endif diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c index 659d119ce712..fafed4c38fd2 100644 --- a/arch/avr32/boards/atngw100/setup.c +++ b/arch/avr32/boards/atngw100/setup.c @@ -322,6 +322,6 @@ static int __init atngw100_arch_init(void) /* set_irq_type() after the arch_initcall for EIC has run, and * before the I2C subsystem could try using this IRQ. */ - return set_irq_type(AT32_EXTINT(3), IRQ_TYPE_EDGE_FALLING); + return irq_set_irq_type(AT32_EXTINT(3), IRQ_TYPE_EDGE_FALLING); } arch_initcall(atngw100_arch_init); diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c index bf3b2c59c8e1..23126aab82ab 100644 --- a/arch/avr32/mach-at32ap/extint.c +++ b/arch/avr32/mach-at32ap/extint.c @@ -134,9 +134,9 @@ static int eic_set_irq_type(struct irq_chip *d, unsigned int flow_type) if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) { flow_type |= IRQ_LEVEL; - __set_irq_handler_unlocked(irq, handle_level_irq); + __irq_set_handler_locked(irq, handle_level_irq); } else - __set_irq_handler_unlocked(irq, handle_edge_irq); + __irq_set_handler_locked(irq, handle_edge_irq); desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL); desc->status |= flow_type; } @@ -155,7 +155,7 @@ static struct irq_chip eic_chip = { static void demux_eic_irq(unsigned int irq, struct irq_desc *desc) { - struct eic *eic = get_irq_desc_data(desc); + struct eic *eic = irq_desc_get_handler_data(desc); unsigned long status, pending; unsigned int i; @@ -235,13 +235,13 @@ static int __init eic_probe(struct platform_device *pdev) eic->chip = &eic_chip; for (i = 0; i < nr_of_irqs; i++) { - set_irq_chip_and_handler(eic->first_irq + i, &eic_chip, + irq_set_chip_and_handler(eic->first_irq + i, &eic_chip, handle_level_irq); - set_irq_chip_data(eic->first_irq + i, eic); + irq_set_chip_data(eic->first_irq + i, eic); } - set_irq_chained_handler(int_irq, demux_eic_irq); - set_irq_data(int_irq, eic); + irq_set_chained_handler(int_irq, demux_eic_irq); + irq_set_handler_data(int_irq, eic); if (pdev->id == 0) { nmi_eic = eic; diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c index d9270d64b4c9..21ce35f33aa5 100644 --- a/arch/avr32/mach-at32ap/intc.c +++ b/arch/avr32/mach-at32ap/intc.c @@ -126,7 +126,7 @@ void __init init_IRQ(void) intc_writel(&intc0, INTPR0 + 4 * i, offset); readback = intc_readl(&intc0, INTPR0 + 4 * i); if (readback == offset) - set_irq_chip_and_handler(i, &intc0.chip, + irq_set_chip_and_handler(i, &intc0.chip, handle_simple_irq); } diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c index 9b121d6b0997..37534103574e 100644 --- a/arch/avr32/mach-at32ap/pio.c +++ b/arch/avr32/mach-at32ap/pio.c @@ -285,7 +285,7 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc) struct pio_device *pio = get_irq_desc_chip_data(desc); unsigned gpio_irq; - gpio_irq = (unsigned) get_irq_data(irq); + gpio_irq = (unsigned) irq_get_handler_data(irq); for (;;) { u32 isr; @@ -310,16 +310,16 @@ gpio_irq_setup(struct pio_device *pio, int irq, int gpio_irq) { unsigned i; - set_irq_chip_data(irq, pio); - set_irq_data(irq, (void *) gpio_irq); + irq_set_chip_data(irq, pio); + irq_set_handler_data(irq, (void *)gpio_irq); for (i = 0; i < 32; i++, gpio_irq++) { - set_irq_chip_data(gpio_irq, pio); - set_irq_chip_and_handler(gpio_irq, &gpio_irqchip, - handle_simple_irq); + irq_set_chip_data(gpio_irq, pio); + irq_set_chip_and_handler(gpio_irq, &gpio_irqchip, + handle_simple_irq); } - set_irq_chained_handler(irq, gpio_irq_handler); + irq_set_chained_handler(irq, gpio_irq_handler); } /*--------------------------------------------------------------------------*/ -- cgit v1.2.3 From db82817bcb278186cad04e263e2d5abb26a4f6fd Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 19:08:11 +0100 Subject: avr32: Use generic show_interrupts() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> --- arch/avr32/Kconfig | 1 + arch/avr32/kernel/irq.c | 37 ------------------------------------- 2 files changed, 1 insertion(+), 37 deletions(-) diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index c0ddc9355920..49642b59f73d 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -9,6 +9,7 @@ config AVR32 select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_PROBE select HARDIRQS_SW_RESEND + select GENERIC_IRQ_SHOW select GENERIC_HARDIRQS_NO_DEPRECATED help AVR32 is a high-performance 32-bit RISC microprocessor core, diff --git a/arch/avr32/kernel/irq.c b/arch/avr32/kernel/irq.c index 9604f7758f9a..bc3aa18293df 100644 --- a/arch/avr32/kernel/irq.c +++ b/arch/avr32/kernel/irq.c @@ -26,40 +26,3 @@ void __weak nmi_disable(void) { } - -#ifdef CONFIG_PROC_FS -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *)v, cpu; - struct irqaction *action; - unsigned long flags; - - if (i == 0) { - seq_puts(p, " "); - for_each_online_cpu(cpu) - seq_printf(p, "CPU%d ", cpu); - seq_putc(p, '\n'); - } - - if (i < NR_IRQS) { - raw_spin_lock_irqsave(&irq_desc[i].lock, flags); - action = irq_desc[i].action; - if (!action) - goto unlock; - - seq_printf(p, "%3d: ", i); - for_each_online_cpu(cpu) - seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu)); - seq_printf(p, " %8s", irq_desc[i].chip->name ? : "-"); - seq_printf(p, " %s", action->name); - for (action = action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - - seq_putc(p, '\n'); - unlock: - raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } - - return 0; -} -#endif -- cgit v1.2.3 From 62ec05d1ea2fe95ab03b55f717c045fd24c02354 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 17:24:04 +0100 Subject: avr32: Cleanup eic_set_irq_type() No need to fiddle in irq_desc. The trigger mask can be written back into irq_data. Return IRQ_SET_MASK_OK_NOCOPY, so the generic code wont overwrite it again. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> --- arch/avr32/mach-at32ap/extint.c | 31 +++++++++++-------------------- 1 file changed, 11 insertions(+), 20 deletions(-) diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c index 23126aab82ab..47ba4b9b6db1 100644 --- a/arch/avr32/mach-at32ap/extint.c +++ b/arch/avr32/mach-at32ap/extint.c @@ -89,18 +89,14 @@ static void eic_unmask_irq(struct irq_chip *d) static int eic_set_irq_type(struct irq_chip *d, unsigned int flow_type) { struct eic *eic = irq_data_get_irq_chip_data(data); - struct irq_desc *desc; unsigned int irq = d->irq; unsigned int i = irq - eic->first_irq; u32 mode, edge, level; - int ret = 0; flow_type &= IRQ_TYPE_SENSE_MASK; if (flow_type == IRQ_TYPE_NONE) flow_type = IRQ_TYPE_LEVEL_LOW; - desc = irq_to_desc(irq); - mode = eic_readl(eic, MODE); edge = eic_readl(eic, EDGE); level = eic_readl(eic, LEVEL); @@ -123,25 +119,20 @@ static int eic_set_irq_type(struct irq_chip *d, unsigned int flow_type) edge &= ~(1 << i); break; default: - ret = -EINVAL; - break; + return -EINVAL; } - if (ret == 0) { - eic_writel(eic, MODE, mode); - eic_writel(eic, EDGE, edge); - eic_writel(eic, LEVEL, level); - - if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) { - flow_type |= IRQ_LEVEL; - __irq_set_handler_locked(irq, handle_level_irq); - } else - __irq_set_handler_locked(irq, handle_edge_irq); - desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL); - desc->status |= flow_type; - } + eic_writel(eic, MODE, mode); + eic_writel(eic, EDGE, edge); + eic_writel(eic, LEVEL, level); - return ret; + irqd_set_trigger_type(d, flow_type); + if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) + __irq_set_handler_locked(irq, handle_level_irq); + else + __irq_set_handler_locked(irq, handle_edge_irq); + + return IRQ_SET_MASK_OK_NOCOPY; } static struct irq_chip eic_chip = { -- cgit v1.2.3 From 7b04690a358ea44c35ad7e3af08ae4544d2175f3 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 17:32:22 +0100 Subject: h8300: Convert genirq namespace Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/h8300/kernel/irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c index 7643d39925d6..5729f64cf575 100644 --- a/arch/h8300/kernel/irq.c +++ b/arch/h8300/kernel/irq.c @@ -155,7 +155,7 @@ void __init init_IRQ(void) setup_vector(); for (c = 0; c < NR_IRQS; c++) - set_irq_chip_and_handler(c, &h8300irq_chip, handle_simple_irq); + irq_set_chip_and_handler(c, &h8300irq_chip, handle_simple_irq); } asmlinkage void do_IRQ(int irq) -- cgit v1.2.3 From 9f7b21871355d00ea0aa4dc84e44f81d90a53f55 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 19:15:36 +0100 Subject: h8300: Use generic show_interrupts() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/h8300/Kconfig | 1 + arch/h8300/kernel/irq.c | 31 ------------------------------- 2 files changed, 1 insertion(+), 31 deletions(-) diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index 6df692d1475f..f94d4e603152 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -4,6 +4,7 @@ config H8300 select HAVE_IDE select HAVE_GENERIC_HARDIRQS select GENERIC_HARDIRQS_NO_DEPRECATED + select GENERIC_IRQ_SHOW config SYMBOL_PREFIX string diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c index 5729f64cf575..1f67fed476af 100644 --- a/arch/h8300/kernel/irq.c +++ b/arch/h8300/kernel/irq.c @@ -164,34 +164,3 @@ asmlinkage void do_IRQ(int irq) generic_handle_irq(irq); irq_exit(); } - -#if defined(CONFIG_PROC_FS) -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *) v; - struct irqaction * action; - unsigned long flags; - - if (i == 0) - seq_puts(p, " CPU0"); - - if (i < NR_IRQS) { - raw_spin_lock_irqsave(&irq_desc[i].lock, flags); - action = irq_desc[i].action; - if (!action) - goto unlock; - seq_printf(p, "%3d: ",i); - seq_printf(p, "%10u ", kstat_irqs(i)); - seq_printf(p, " %14s", irq_desc[i].irq_data.chip->name); - seq_printf(p, "-%-8s", irq_desc[i].name); - seq_printf(p, " %s", action->name); - - for (action=action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - seq_putc(p, '\n'); -unlock: - raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } - return 0; -} -#endif -- cgit v1.2.3 From 27e5c5a9a240d2a7790bfe31045020a043c5d74a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 17:32:45 +0100 Subject: m32r: Convert genirq namespace Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/m32r/platforms/m32104ut/setup.c | 8 ++++---- arch/m32r/platforms/m32700ut/setup.c | 28 ++++++++++++++-------------- arch/m32r/platforms/mappi/setup.c | 16 ++++++++-------- arch/m32r/platforms/mappi2/setup.c | 20 ++++++++++---------- arch/m32r/platforms/mappi3/setup.c | 20 ++++++++++---------- arch/m32r/platforms/oaks32r/setup.c | 12 ++++++------ arch/m32r/platforms/opsput/setup.c | 28 ++++++++++++++-------------- arch/m32r/platforms/usrv/setup.c | 18 +++++++++--------- 8 files changed, 75 insertions(+), 75 deletions(-) diff --git a/arch/m32r/platforms/m32104ut/setup.c b/arch/m32r/platforms/m32104ut/setup.c index 4a693d02c1e1..34671d32cefc 100644 --- a/arch/m32r/platforms/m32104ut/setup.c +++ b/arch/m32r/platforms/m32104ut/setup.c @@ -76,7 +76,7 @@ void __init init_IRQ(void) #if defined(CONFIG_SMC91X) /* INT#0: LAN controller on M32104UT-LAN (SMC91C111)*/ - set_irq_chip_and_handler(M32R_IRQ_INT0, &m32104ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT0, &m32104ut_irq_type, handle_level_irq); /* "H" level sense */ cu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD11; @@ -84,20 +84,20 @@ void __init init_IRQ(void) #endif /* CONFIG_SMC91X */ /* MFT2 : system timer */ - set_irq_chip_and_handler(M32R_IRQ_MFT2, &m32104ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_MFT2, &m32104ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN; disable_m32104ut_irq(M32R_IRQ_MFT2); #ifdef CONFIG_SERIAL_M32R_SIO /* SIO0_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &m32104ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &m32104ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_R].icucr = M32R_ICUCR_IEN; disable_m32104ut_irq(M32R_IRQ_SIO0_R); /* SIO0_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &m32104ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &m32104ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_S].icucr = M32R_ICUCR_IEN; disable_m32104ut_irq(M32R_IRQ_SIO0_S); diff --git a/arch/m32r/platforms/m32700ut/setup.c b/arch/m32r/platforms/m32700ut/setup.c index 2074bcc841eb..1053e1cb7401 100644 --- a/arch/m32r/platforms/m32700ut/setup.c +++ b/arch/m32r/platforms/m32700ut/setup.c @@ -259,76 +259,76 @@ void __init init_IRQ(void) { #if defined(CONFIG_SMC91X) /* INT#0: LAN controller on M32700UT-LAN (SMC91C111)*/ - set_irq_chip_and_handler(M32700UT_LAN_IRQ_LAN, + irq_set_chip_and_handler(M32700UT_LAN_IRQ_LAN, &m32700ut_lanpld_irq_type, handle_level_irq); lanpld_icu_data[irq2lanpldirq(M32700UT_LAN_IRQ_LAN)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD02; /* "H" edge sense */ disable_m32700ut_lanpld_irq(M32700UT_LAN_IRQ_LAN); #endif /* CONFIG_SMC91X */ /* MFT2 : system timer */ - set_irq_chip_and_handler(M32R_IRQ_MFT2, &m32700ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_MFT2, &m32700ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN; disable_m32700ut_irq(M32R_IRQ_MFT2); /* SIO0 : receive */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &m32700ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &m32700ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_R].icucr = 0; disable_m32700ut_irq(M32R_IRQ_SIO0_R); /* SIO0 : send */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &m32700ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &m32700ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_S].icucr = 0; disable_m32700ut_irq(M32R_IRQ_SIO0_S); /* SIO1 : receive */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &m32700ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &m32700ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_R].icucr = 0; disable_m32700ut_irq(M32R_IRQ_SIO1_R); /* SIO1 : send */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &m32700ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &m32700ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_S].icucr = 0; disable_m32700ut_irq(M32R_IRQ_SIO1_S); /* DMA1 : */ - set_irq_chip_and_handler(M32R_IRQ_DMA1, &m32700ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_DMA1, &m32700ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_DMA1].icucr = 0; disable_m32700ut_irq(M32R_IRQ_DMA1); #ifdef CONFIG_SERIAL_M32R_PLDSIO /* INT#1: SIO0 Receive on PLD */ - set_irq_chip_and_handler(PLD_IRQ_SIO0_RCV, &m32700ut_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_SIO0_RCV, &m32700ut_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_SIO0_RCV)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD03; disable_m32700ut_pld_irq(PLD_IRQ_SIO0_RCV); /* INT#1: SIO0 Send on PLD */ - set_irq_chip_and_handler(PLD_IRQ_SIO0_SND, &m32700ut_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_SIO0_SND, &m32700ut_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_SIO0_SND)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD03; disable_m32700ut_pld_irq(PLD_IRQ_SIO0_SND); #endif /* CONFIG_SERIAL_M32R_PLDSIO */ /* INT#1: CFC IREQ on PLD */ - set_irq_chip_and_handler(PLD_IRQ_CFIREQ, &m32700ut_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &m32700ut_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_CFIREQ)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD01; /* 'L' level sense */ disable_m32700ut_pld_irq(PLD_IRQ_CFIREQ); /* INT#1: CFC Insert on PLD */ - set_irq_chip_and_handler(PLD_IRQ_CFC_INSERT, &m32700ut_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &m32700ut_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_CFC_INSERT)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD00; /* 'L' edge sense */ disable_m32700ut_pld_irq(PLD_IRQ_CFC_INSERT); /* INT#1: CFC Eject on PLD */ - set_irq_chip_and_handler(PLD_IRQ_CFC_EJECT, &m32700ut_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFC_EJECT, &m32700ut_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_CFC_EJECT)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD02; /* 'H' edge sense */ disable_m32700ut_pld_irq(PLD_IRQ_CFC_EJECT); @@ -349,7 +349,7 @@ void __init init_IRQ(void) #if defined(CONFIG_USB) outw(USBCR_OTGS, USBCR); /* USBCR: non-OTG */ - set_irq_chip_and_handler(M32700UT_LCD_IRQ_USB_INT1, + irq_set_chip_and_handler(M32700UT_LCD_IRQ_USB_INT1, &m32700ut_lcdpld_irq_type, handle_level_irq); lcdpld_icu_data[irq2lcdpldirq(M32700UT_LCD_IRQ_USB_INT1)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD01; /* "L" level sense */ @@ -366,7 +366,7 @@ void __init init_IRQ(void) /* * INT3# is used for AR */ - set_irq_chip_and_handler(M32R_IRQ_INT3, &m32700ut_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT3, &m32700ut_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10; disable_m32700ut_irq(M32R_IRQ_INT3); diff --git a/arch/m32r/platforms/mappi/setup.c b/arch/m32r/platforms/mappi/setup.c index cdd8c4574027..35130ac3f8d1 100644 --- a/arch/m32r/platforms/mappi/setup.c +++ b/arch/m32r/platforms/mappi/setup.c @@ -75,39 +75,39 @@ void __init init_IRQ(void) #ifdef CONFIG_NE2000 /* INT0 : LAN controller (RTL8019AS) */ - set_irq_chip_and_handler(M32R_IRQ_INT0, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT0, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD11; disable_mappi_irq(M32R_IRQ_INT0); #endif /* CONFIG_M32R_NE2000 */ /* MFT2 : system timer */ - set_irq_chip_and_handler(M32R_IRQ_MFT2, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN; disable_mappi_irq(M32R_IRQ_MFT2); #ifdef CONFIG_SERIAL_M32R_SIO /* SIO0_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_R].icucr = 0; disable_mappi_irq(M32R_IRQ_SIO0_R); /* SIO0_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_S].icucr = 0; disable_mappi_irq(M32R_IRQ_SIO0_S); /* SIO1_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_R].icucr = 0; disable_mappi_irq(M32R_IRQ_SIO1_R); /* SIO1_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_S].icucr = 0; disable_mappi_irq(M32R_IRQ_SIO1_S); @@ -115,13 +115,13 @@ void __init init_IRQ(void) #if defined(CONFIG_M32R_PCC) /* INT1 : pccard0 interrupt */ - set_irq_chip_and_handler(M32R_IRQ_INT1, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT1, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD00; disable_mappi_irq(M32R_IRQ_INT1); /* INT2 : pccard1 interrupt */ - set_irq_chip_and_handler(M32R_IRQ_INT2, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT2, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT2].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD00; disable_mappi_irq(M32R_IRQ_INT2); diff --git a/arch/m32r/platforms/mappi2/setup.c b/arch/m32r/platforms/mappi2/setup.c index 9117c30ea365..f3ed6b60a5f8 100644 --- a/arch/m32r/platforms/mappi2/setup.c +++ b/arch/m32r/platforms/mappi2/setup.c @@ -76,38 +76,38 @@ void __init init_IRQ(void) { #if defined(CONFIG_SMC91X) /* INT0 : LAN controller (SMC91111) */ - set_irq_chip_and_handler(M32R_IRQ_INT0, &mappi2_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT0, &mappi2_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10; disable_mappi2_irq(M32R_IRQ_INT0); #endif /* CONFIG_SMC91X */ /* MFT2 : system timer */ - set_irq_chip_and_handler(M32R_IRQ_MFT2, &mappi2_irq_type, + irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi2_irq_type, handle_level_irq); icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN; disable_mappi2_irq(M32R_IRQ_MFT2); #ifdef CONFIG_SERIAL_M32R_SIO /* SIO0_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &mappi2_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi2_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_R].icucr = 0; disable_mappi2_irq(M32R_IRQ_SIO0_R); /* SIO0_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &mappi2_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi2_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_S].icucr = 0; disable_mappi2_irq(M32R_IRQ_SIO0_S); /* SIO1_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &mappi2_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi2_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_R].icucr = 0; disable_mappi2_irq(M32R_IRQ_SIO1_R); /* SIO1_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &mappi2_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi2_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_S].icucr = 0; disable_mappi2_irq(M32R_IRQ_SIO1_S); @@ -115,27 +115,27 @@ void __init init_IRQ(void) #if defined(CONFIG_USB) /* INT1 : USB Host controller interrupt */ - set_irq_chip_and_handler(M32R_IRQ_INT1, &mappi2_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT1, &mappi2_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD01; disable_mappi2_irq(M32R_IRQ_INT1); #endif /* CONFIG_USB */ /* ICUCR40: CFC IREQ */ - set_irq_chip_and_handler(PLD_IRQ_CFIREQ, &mappi2_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &mappi2_irq_type, handle_level_irq); icu_data[PLD_IRQ_CFIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01; disable_mappi2_irq(PLD_IRQ_CFIREQ); #if defined(CONFIG_M32R_CFC) /* ICUCR41: CFC Insert */ - set_irq_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi2_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi2_irq_type, handle_level_irq); icu_data[PLD_IRQ_CFC_INSERT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD00; disable_mappi2_irq(PLD_IRQ_CFC_INSERT); /* ICUCR42: CFC Eject */ - set_irq_chip_and_handler(PLD_IRQ_CFC_EJECT, &mappi2_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFC_EJECT, &mappi2_irq_type, handle_level_irq); icu_data[PLD_IRQ_CFC_EJECT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10; disable_mappi2_irq(PLD_IRQ_CFC_EJECT); diff --git a/arch/m32r/platforms/mappi3/setup.c b/arch/m32r/platforms/mappi3/setup.c index b44f5ded2bbe..2408e356ad10 100644 --- a/arch/m32r/platforms/mappi3/setup.c +++ b/arch/m32r/platforms/mappi3/setup.c @@ -75,38 +75,38 @@ void __init init_IRQ(void) { #if defined(CONFIG_SMC91X) /* INT0 : LAN controller (SMC91111) */ - set_irq_chip_and_handler(M32R_IRQ_INT0, &mappi3_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT0, &mappi3_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10; disable_mappi3_irq(M32R_IRQ_INT0); #endif /* CONFIG_SMC91X */ /* MFT2 : system timer */ - set_irq_chip_and_handler(M32R_IRQ_MFT2, &mappi3_irq_type, + irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi3_irq_type, handle_level_irq); icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN; disable_mappi3_irq(M32R_IRQ_MFT2); #ifdef CONFIG_SERIAL_M32R_SIO /* SIO0_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &mappi3_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi3_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_R].icucr = 0; disable_mappi3_irq(M32R_IRQ_SIO0_R); /* SIO0_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &mappi3_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi3_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_S].icucr = 0; disable_mappi3_irq(M32R_IRQ_SIO0_S); /* SIO1_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &mappi3_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi3_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_R].icucr = 0; disable_mappi3_irq(M32R_IRQ_SIO1_R); /* SIO1_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &mappi3_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi3_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_S].icucr = 0; disable_mappi3_irq(M32R_IRQ_SIO1_S); @@ -114,21 +114,21 @@ void __init init_IRQ(void) #if defined(CONFIG_USB) /* INT1 : USB Host controller interrupt */ - set_irq_chip_and_handler(M32R_IRQ_INT1, &mappi3_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT1, &mappi3_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT1].icucr = M32R_ICUCR_ISMOD01; disable_mappi3_irq(M32R_IRQ_INT1); #endif /* CONFIG_USB */ /* CFC IREQ */ - set_irq_chip_and_handler(PLD_IRQ_CFIREQ, &mappi3_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &mappi3_irq_type, handle_level_irq); icu_data[PLD_IRQ_CFIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01; disable_mappi3_irq(PLD_IRQ_CFIREQ); #if defined(CONFIG_M32R_CFC) /* ICUCR41: CFC Insert & eject */ - set_irq_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi3_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &mappi3_irq_type, handle_level_irq); icu_data[PLD_IRQ_CFC_INSERT].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD00; disable_mappi3_irq(PLD_IRQ_CFC_INSERT); @@ -136,7 +136,7 @@ void __init init_IRQ(void) #endif /* CONFIG_M32R_CFC */ /* IDE IREQ */ - set_irq_chip_and_handler(PLD_IRQ_IDEIREQ, &mappi3_irq_type, + irq_set_chip_and_handler(PLD_IRQ_IDEIREQ, &mappi3_irq_type, handle_level_irq); icu_data[PLD_IRQ_IDEIREQ].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10; disable_mappi3_irq(PLD_IRQ_IDEIREQ); diff --git a/arch/m32r/platforms/oaks32r/setup.c b/arch/m32r/platforms/oaks32r/setup.c index 19a02db7b818..83b46b067a17 100644 --- a/arch/m32r/platforms/oaks32r/setup.c +++ b/arch/m32r/platforms/oaks32r/setup.c @@ -74,39 +74,39 @@ void __init init_IRQ(void) #ifdef CONFIG_NE2000 /* INT3 : LAN controller (RTL8019AS) */ - set_irq_chip_and_handler(M32R_IRQ_INT3, &oaks32r_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT3, &oaks32r_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10; disable_oaks32r_irq(M32R_IRQ_INT3); #endif /* CONFIG_M32R_NE2000 */ /* MFT2 : system timer */ - set_irq_chip_and_handler(M32R_IRQ_MFT2, &oaks32r_irq_type, + irq_set_chip_and_handler(M32R_IRQ_MFT2, &oaks32r_irq_type, handle_level_irq); icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN; disable_oaks32r_irq(M32R_IRQ_MFT2); #ifdef CONFIG_SERIAL_M32R_SIO /* SIO0_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &oaks32r_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &oaks32r_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_R].icucr = 0; disable_oaks32r_irq(M32R_IRQ_SIO0_R); /* SIO0_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &oaks32r_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &oaks32r_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_S].icucr = 0; disable_oaks32r_irq(M32R_IRQ_SIO0_S); /* SIO1_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &oaks32r_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &oaks32r_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_R].icucr = 0; disable_oaks32r_irq(M32R_IRQ_SIO1_R); /* SIO1_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &oaks32r_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &oaks32r_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_S].icucr = 0; disable_oaks32r_irq(M32R_IRQ_SIO1_S); diff --git a/arch/m32r/platforms/opsput/setup.c b/arch/m32r/platforms/opsput/setup.c index 12731547e8bf..32660705f5fd 100644 --- a/arch/m32r/platforms/opsput/setup.c +++ b/arch/m32r/platforms/opsput/setup.c @@ -259,76 +259,76 @@ void __init init_IRQ(void) { #if defined(CONFIG_SMC91X) /* INT#0: LAN controller on OPSPUT-LAN (SMC91C111)*/ - set_irq_chip_and_handler(OPSPUT_LAN_IRQ_LAN, &opsput_lanpld_irq_type, + irq_set_chip_and_handler(OPSPUT_LAN_IRQ_LAN, &opsput_lanpld_irq_type, handle_level_irq); lanpld_icu_data[irq2lanpldirq(OPSPUT_LAN_IRQ_LAN)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD02; /* "H" edge sense */ disable_opsput_lanpld_irq(OPSPUT_LAN_IRQ_LAN); #endif /* CONFIG_SMC91X */ /* MFT2 : system timer */ - set_irq_chip_and_handler(M32R_IRQ_MFT2, &opsput_irq_type, + irq_set_chip_and_handler(M32R_IRQ_MFT2, &opsput_irq_type, handle_level_irq); icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN; disable_opsput_irq(M32R_IRQ_MFT2); /* SIO0 : receive */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &opsput_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &opsput_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_R].icucr = 0; disable_opsput_irq(M32R_IRQ_SIO0_R); /* SIO0 : send */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &opsput_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &opsput_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_S].icucr = 0; disable_opsput_irq(M32R_IRQ_SIO0_S); /* SIO1 : receive */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &opsput_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &opsput_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_R].icucr = 0; disable_opsput_irq(M32R_IRQ_SIO1_R); /* SIO1 : send */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &opsput_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &opsput_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_S].icucr = 0; disable_opsput_irq(M32R_IRQ_SIO1_S); /* DMA1 : */ - set_irq_chip_and_handler(M32R_IRQ_DMA1, &opsput_irq_type, + irq_set_chip_and_handler(M32R_IRQ_DMA1, &opsput_irq_type, handle_level_irq); icu_data[M32R_IRQ_DMA1].icucr = 0; disable_opsput_irq(M32R_IRQ_DMA1); #ifdef CONFIG_SERIAL_M32R_PLDSIO /* INT#1: SIO0 Receive on PLD */ - set_irq_chip_and_handler(PLD_IRQ_SIO0_RCV, &opsput_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_SIO0_RCV, &opsput_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_SIO0_RCV)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD03; disable_opsput_pld_irq(PLD_IRQ_SIO0_RCV); /* INT#1: SIO0 Send on PLD */ - set_irq_chip_and_handler(PLD_IRQ_SIO0_SND, &opsput_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_SIO0_SND, &opsput_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_SIO0_SND)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD03; disable_opsput_pld_irq(PLD_IRQ_SIO0_SND); #endif /* CONFIG_SERIAL_M32R_PLDSIO */ /* INT#1: CFC IREQ on PLD */ - set_irq_chip_and_handler(PLD_IRQ_CFIREQ, &opsput_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFIREQ, &opsput_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_CFIREQ)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD01; /* 'L' level sense */ disable_opsput_pld_irq(PLD_IRQ_CFIREQ); /* INT#1: CFC Insert on PLD */ - set_irq_chip_and_handler(PLD_IRQ_CFC_INSERT, &opsput_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFC_INSERT, &opsput_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_CFC_INSERT)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD00; /* 'L' edge sense */ disable_opsput_pld_irq(PLD_IRQ_CFC_INSERT); /* INT#1: CFC Eject on PLD */ - set_irq_chip_and_handler(PLD_IRQ_CFC_EJECT, &opsput_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_CFC_EJECT, &opsput_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_CFC_EJECT)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD02; /* 'H' edge sense */ disable_opsput_pld_irq(PLD_IRQ_CFC_EJECT); @@ -349,7 +349,7 @@ void __init init_IRQ(void) #if defined(CONFIG_USB) outw(USBCR_OTGS, USBCR); /* USBCR: non-OTG */ - set_irq_chip_and_handler(OPSPUT_LCD_IRQ_USB_INT1, + irq_set_chip_and_handler(OPSPUT_LCD_IRQ_USB_INT1, &opsput_lcdpld_irq_type, handle_level_irq); lcdpld_icu_data[irq2lcdpldirq(OPSPUT_LCD_IRQ_USB_INT1)].icucr = PLD_ICUCR_IEN|PLD_ICUCR_ISMOD01; /* "L" level sense */ disable_opsput_lcdpld_irq(OPSPUT_LCD_IRQ_USB_INT1); @@ -365,7 +365,7 @@ void __init init_IRQ(void) /* * INT3# is used for AR */ - set_irq_chip_and_handler(M32R_IRQ_INT3, &opsput_irq_type, + irq_set_chip_and_handler(M32R_IRQ_INT3, &opsput_irq_type, handle_level_irq); icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10; disable_opsput_irq(M32R_IRQ_INT3); diff --git a/arch/m32r/platforms/usrv/setup.c b/arch/m32r/platforms/usrv/setup.c index f3cff26d6e74..0c7a1e8c77b0 100644 --- a/arch/m32r/platforms/usrv/setup.c +++ b/arch/m32r/platforms/usrv/setup.c @@ -138,32 +138,32 @@ void __init init_IRQ(void) once++; /* MFT2 : system timer */ - set_irq_chip_and_handler(M32R_IRQ_MFT2, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_MFT2, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN; disable_mappi_irq(M32R_IRQ_MFT2); #if defined(CONFIG_SERIAL_M32R_SIO) /* SIO0_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_R].icucr = 0; disable_mappi_irq(M32R_IRQ_SIO0_R); /* SIO0_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO0_S].icucr = 0; disable_mappi_irq(M32R_IRQ_SIO0_S); /* SIO1_R : uart receive data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_R, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_R].icucr = 0; disable_mappi_irq(M32R_IRQ_SIO1_R); /* SIO1_S : uart send data */ - set_irq_chip_and_handler(M32R_IRQ_SIO1_S, &mappi_irq_type, + irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &mappi_irq_type, handle_level_irq); icu_data[M32R_IRQ_SIO1_S].icucr = 0; disable_mappi_irq(M32R_IRQ_SIO1_S); @@ -171,7 +171,7 @@ void __init init_IRQ(void) /* INT#67-#71: CFC#0 IREQ on PLD */ for (i = 0 ; i < CONFIG_M32R_CFC_NUM ; i++ ) { - set_irq_chip_and_handler(PLD_IRQ_CF0 + i, + irq_set_chip_and_handler(PLD_IRQ_CF0 + i, &m32700ut_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_CF0 + i)].icucr @@ -181,14 +181,14 @@ void __init init_IRQ(void) #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) /* INT#76: 16552D#0 IREQ on PLD */ - set_irq_chip_and_handler(PLD_IRQ_UART0, &m32700ut_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_UART0, &m32700ut_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_UART0)].icucr = PLD_ICUCR_ISMOD03; /* 'H' level sense */ disable_m32700ut_pld_irq(PLD_IRQ_UART0); /* INT#77: 16552D#1 IREQ on PLD */ - set_irq_chip_and_handler(PLD_IRQ_UART1, &m32700ut_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_UART1, &m32700ut_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_UART1)].icucr = PLD_ICUCR_ISMOD03; /* 'H' level sense */ @@ -197,7 +197,7 @@ void __init init_IRQ(void) #if defined(CONFIG_IDC_AK4524) || defined(CONFIG_IDC_AK4524_MODULE) /* INT#80: AK4524 IREQ on PLD */ - set_irq_chip_and_handler(PLD_IRQ_SNDINT, &m32700ut_pld_irq_type, + irq_set_chip_and_handler(PLD_IRQ_SNDINT, &m32700ut_pld_irq_type, handle_level_irq); pld_icu_data[irq2pldirq(PLD_IRQ_SNDINT)].icucr = PLD_ICUCR_ISMOD01; /* 'L' level sense */ -- cgit v1.2.3 From 4bdab7e0305383ce1126f43f46262f00a265d802 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 19:24:55 +0100 Subject: m32r: Use generic show_interrupts() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/m32r/Kconfig | 1 + arch/m32r/kernel/irq.c | 45 --------------------------------------------- 2 files changed, 1 insertion(+), 45 deletions(-) diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index ef4c1e442be3..ad45b822e68c 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -10,6 +10,7 @@ config M32R select HAVE_GENERIC_HARDIRQS select GENERIC_HARDIRQS_NO_DEPRECATED select GENERIC_IRQ_PROBE + select GENERIC_IRQ_SHOW config SBUS bool diff --git a/arch/m32r/kernel/irq.c b/arch/m32r/kernel/irq.c index 76eaf3883fbd..c7272b894283 100644 --- a/arch/m32r/kernel/irq.c +++ b/arch/m32r/kernel/irq.c @@ -18,54 +18,9 @@ #include <linux/kernel_stat.h> #include <linux/interrupt.h> -#include <linux/seq_file.h> #include <linux/module.h> #include <asm/uaccess.h> -/* - * Generic, controller-independent functions: - */ - -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *) v, j; - struct irqaction * action; - unsigned long flags; - - if (i == 0) { - seq_printf(p, " "); - for_each_online_cpu(j) - seq_printf(p, "CPU%d ",j); - seq_putc(p, '\n'); - } - - if (i < NR_IRQS) { - struct irq_desc *desc = irq_to_desc(i); - - raw_spin_lock_irqsave(&desc->lock, flags); - action = desc->action; - if (!action) - goto skip; - seq_printf(p, "%3d: ",i); -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(i)); -#else - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); -#endif - seq_printf(p, " %14s", desc->irq_data.chip->name); - seq_printf(p, " %s", action->name); - - for (action=action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - - seq_putc(p, '\n'); -skip: - raw_spin_unlock_irqrestore(&desc->lock, flags); - } - return 0; -} - /* * do_IRQ handles all normal device IRQs (the special * SMP cross-CPU interrupts have their own specific -- cgit v1.2.3 From 0ebec35f683c4e94e4bfb877b71598e79b131638 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 18:24:42 +0100 Subject: um: Convert genirq namespace Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/um/kernel/irq.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index 64cfea80cfe2..d76d8c8ded56 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -48,7 +48,7 @@ int show_interrupts(struct seq_file *p, void *v) for_each_online_cpu(j) seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); #endif - seq_printf(p, " %14s", get_irq_desc_chip(desc)->name); + seq_printf(p, " %14s", irq_desc_get_chip(desc)->name); seq_printf(p, " %s", action->name); for (action=action->next; action; action = action->next) @@ -390,11 +390,10 @@ void __init init_IRQ(void) { int i; - set_irq_chip_and_handler(TIMER_IRQ, &SIGVTALRM_irq_type, handle_edge_irq); + irq_set_chip_and_handler(TIMER_IRQ, &SIGVTALRM_irq_type, handle_edge_irq); - for (i = 1; i < NR_IRQS; i++) { - set_irq_chip_and_handler(i, &normal_irq_type, handle_edge_irq); - } + for (i = 1; i < NR_IRQS; i++) + irq_set_chip_and_handler(i, &normal_irq_type, handle_edge_irq); } /* -- cgit v1.2.3 From df31a0a06f00a9b54a5cd4eaef59ebc6ca629b78 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 18:25:20 +0100 Subject: um: Use generic show_interrupts() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/um/Kconfig.common | 1 + arch/um/kernel/irq.c | 46 ---------------------------------------------- 2 files changed, 1 insertion(+), 46 deletions(-) diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common index 1e78940218c0..109ddc0071c6 100644 --- a/arch/um/Kconfig.common +++ b/arch/um/Kconfig.common @@ -8,6 +8,7 @@ config UML default y select HAVE_GENERIC_HARDIRQS select GENERIC_HARDIRQS_NO_DEPRECATED + select GENERIC_IRQ_SHOW config MMU bool diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index d76d8c8ded56..9e485c770308 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -17,52 +17,6 @@ #include "kern_util.h" #include "os.h" -/* - * Generic, controller-independent functions: - */ - -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *) v, j; - struct irqaction * action; - unsigned long flags; - - if (i == 0) { - seq_printf(p, " "); - for_each_online_cpu(j) - seq_printf(p, "CPU%d ",j); - seq_putc(p, '\n'); - } - - if (i < NR_IRQS) { - struct irq_desc *desc = irq_to_desc(i); - - raw_spin_lock_irqsave(&desc->lock, flags); - action = desc->action; - if (!action) - goto skip; - seq_printf(p, "%3d: ",i); -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(i)); -#else - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); -#endif - seq_printf(p, " %14s", irq_desc_get_chip(desc)->name); - seq_printf(p, " %s", action->name); - - for (action=action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - - seq_putc(p, '\n'); -skip: - raw_spin_unlock_irqrestore(&desc->lock, flags); - } else if (i == NR_IRQS) - seq_putc(p, '\n'); - - return 0; -} - /* * This list is accessed under irq_lock, except in sigio_handler, * where it is safe from being modified. IRQ handlers won't change it - -- cgit v1.2.3 From 495e0c79406fc0915fe80c7b1bbc006ef1370842 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Sun, 6 Feb 2011 22:10:52 +0100 Subject: xtensa: Convert main irq_chip to new functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chris Zankel <chris@zankel.net> LKML-Reference: <20110206211137.653005586@linutronix.de> --- arch/xtensa/kernel/irq.c | 43 +++++++++++++++++++++---------------------- 1 file changed, 21 insertions(+), 22 deletions(-) diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c index 87508886cbbd..8438319b14d7 100644 --- a/arch/xtensa/kernel/irq.c +++ b/arch/xtensa/kernel/irq.c @@ -35,7 +35,6 @@ atomic_t irq_err_count; asmlinkage void do_IRQ(int irq, struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); - struct irq_desc *desc = irq_desc + irq; if (irq >= NR_IRQS) { printk(KERN_EMERG "%s: cannot handle IRQ %d\n", @@ -57,7 +56,7 @@ asmlinkage void do_IRQ(int irq, struct pt_regs *regs) sp - sizeof(struct thread_info)); } #endif - desc->handle_irq(irq, desc); + generic_handle_irq(irq); irq_exit(); set_irq_regs(old_regs); @@ -111,50 +110,50 @@ skip: return 0; } -static void xtensa_irq_mask(unsigned int irq) +static void xtensa_irq_mask(struct irq_chip *d) { - cached_irq_mask &= ~(1 << irq); + cached_irq_mask &= ~(1 << d->irq); set_sr (cached_irq_mask, INTENABLE); } -static void xtensa_irq_unmask(unsigned int irq) +static void xtensa_irq_unmask(struct irq_chip *d) { - cached_irq_mask |= 1 << irq; + cached_irq_mask |= 1 << d->irq; set_sr (cached_irq_mask, INTENABLE); } -static void xtensa_irq_enable(unsigned int irq) +static void xtensa_irq_enable(struct irq_chip *d) { - variant_irq_enable(irq); - xtensa_irq_unmask(irq); + variant_irq_enable(d->irq); + xtensa_irq_unmask(d->irq); } -static void xtensa_irq_disable(unsigned int irq) +static void xtensa_irq_disable(struct irq_chip *d) { - xtensa_irq_mask(irq); - variant_irq_disable(irq); + xtensa_irq_mask(d->irq); + variant_irq_disable(d->irq); } -static void xtensa_irq_ack(unsigned int irq) +static void xtensa_irq_ack(struct irq_chip *d) { - set_sr(1 << irq, INTCLEAR); + set_sr(1 << d->irq, INTCLEAR); } -static int xtensa_irq_retrigger(unsigned int irq) +static int xtensa_irq_retrigger(struct irq_chip *d) { - set_sr (1 << irq, INTSET); + set_sr (1 << d->irq, INTSET); return 1; } static struct irq_chip xtensa_irq_chip = { .name = "xtensa", - .enable = xtensa_irq_enable, - .disable = xtensa_irq_disable, - .mask = xtensa_irq_mask, - .unmask = xtensa_irq_unmask, - .ack = xtensa_irq_ack, - .retrigger = xtensa_irq_retrigger, + .irq_enable = xtensa_irq_enable, + .irq_disable = xtensa_irq_disable, + .irq_mask = xtensa_irq_mask, + .irq_unmask = xtensa_irq_unmask, + .irq_ack = xtensa_irq_ack, + .irq_retrigger = xtensa_irq_retrigger, }; void __init init_IRQ(void) -- cgit v1.2.3 From 0e77575346c2ed371e06aa3b409c74221be09c38 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Sun, 6 Feb 2011 22:10:53 +0100 Subject: xtensa: Convert s6000 gpio irq_chip to new functions Also use proper wrappers for irq_desc access. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chris Zankel <chris@zankel.net> LKML-Reference: <20110206211137.750284615@linutronix.de> --- arch/xtensa/variants/s6000/gpio.c | 35 +++++++++++++++++------------------ 1 file changed, 17 insertions(+), 18 deletions(-) diff --git a/arch/xtensa/variants/s6000/gpio.c b/arch/xtensa/variants/s6000/gpio.c index 380a70fff756..c694158817b2 100644 --- a/arch/xtensa/variants/s6000/gpio.c +++ b/arch/xtensa/variants/s6000/gpio.c @@ -85,30 +85,29 @@ int s6_gpio_init(u32 afsel) return gpiochip_add(&gpiochip); } -static void ack(unsigned int irq) +static void ack(struct irq_data *d) { - writeb(1 << (irq - IRQ_BASE), S6_REG_GPIO + S6_GPIO_IC); + writeb(1 << (d->irq - IRQ_BASE), S6_REG_GPIO + S6_GPIO_IC); } -static void mask(unsigned int irq) +static void mask(struct irq_data *d) { u8 r = readb(S6_REG_GPIO + S6_GPIO_IE); - r &= ~(1 << (irq - IRQ_BASE)); + r &= ~(1 << (d->irq - IRQ_BASE)); writeb(r, S6_REG_GPIO + S6_GPIO_IE); } -static void unmask(unsigned int irq) +static void unmask(struct irq_data *d) { u8 m = readb(S6_REG_GPIO + S6_GPIO_IE); - m |= 1 << (irq - IRQ_BASE); + m |= 1 << (d->irq - IRQ_BASE); writeb(m, S6_REG_GPIO + S6_GPIO_IE); } -static int set_type(unsigned int irq, unsigned int type) +static int set_type(struct irq_data *d, unsigned int type) { - const u8 m = 1 << (irq - IRQ_BASE); + const u8 m = 1 << (d->irq - IRQ_BASE); irq_flow_handler_t handler; - struct irq_desc *desc; u8 reg; if (type == IRQ_TYPE_PROBE) { @@ -129,8 +128,7 @@ static int set_type(unsigned int irq, unsigned int type) handler = handle_edge_irq; } writeb(reg, S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IS); - desc = irq_to_desc(irq); - desc->handle_irq = handler; + __set_irq_handler_unlocked(irq, handler); reg = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IEV); if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)) @@ -150,22 +148,23 @@ static int set_type(unsigned int irq, unsigned int type) static struct irq_chip gpioirqs = { .name = "GPIO", - .ack = ack, - .mask = mask, - .unmask = unmask, - .set_type = set_type, + .irq_ack = ack, + .irq_mask = mask, + .irq_unmask = unmask, + .irq_set_type = set_type, }; static u8 demux_masks[4]; static void demux_irqs(unsigned int irq, struct irq_desc *desc) { + struct irq_chip *chip = get_irq_desc_chip(desc); u8 *mask = get_irq_desc_data(desc); u8 pending; int cirq; - desc->chip->mask(irq); - desc->chip->ack(irq); + chip->irq_mask(&desc->irq_data); + chip->irq_ack(&desc->irq_data)); pending = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_MIS) & *mask; cirq = IRQ_BASE - 1; while (pending) { @@ -174,7 +173,7 @@ static void demux_irqs(unsigned int irq, struct irq_desc *desc) pending >>= n; generic_handle_irq(cirq); } - desc->chip->unmask(irq); + chip->irq_unmask(&desc->irq_data)); } extern const signed char *platform_irq_mappings[XTENSA_NR_IRQS]; -- cgit v1.2.3 From 3b190a4a0919eac849f73cb06886f26d357a554c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Sun, 6 Feb 2011 22:10:54 +0100 Subject: xtensa: Use generic IRQ Kconfig and set GENERIC_HARDIRQS_NO_DEPRECATED All chips converted. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chris Zankel <chris@zankel.net> LKML-Reference: <20110206211137.849317253@linutronix.de> --- arch/xtensa/Kconfig | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index d373d159e75e..a1c7482ad0ec 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -7,6 +7,8 @@ config ZONE_DMA config XTENSA def_bool y select HAVE_IDE + select HAVE_GENERIC_HARDIRQS + select GENERIC_HARDIRQS_NO_DEPRECATED help Xtensa processors are 32-bit RISC machines designed by Tensilica primarily for embedded systems. These processors are both @@ -24,9 +26,6 @@ config GENERIC_FIND_NEXT_BIT config GENERIC_HWEIGHT def_bool y -config GENERIC_HARDIRQS - def_bool y - config GENERIC_GPIO def_bool y -- cgit v1.2.3 From 610e1756eafdeca15cc24ade6dae23d8129225f9 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 14:58:43 +0100 Subject: xtensa: Convert genirq namespace Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/xtensa/kernel/irq.c | 10 +++++----- arch/xtensa/platforms/s6105/device.c | 2 +- arch/xtensa/variants/s6000/gpio.c | 14 +++++++------- 3 files changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c index 8438319b14d7..98c0d6bafdf2 100644 --- a/arch/xtensa/kernel/irq.c +++ b/arch/xtensa/kernel/irq.c @@ -164,25 +164,25 @@ void __init init_IRQ(void) int mask = 1 << index; if (mask & XCHAL_INTTYPE_MASK_SOFTWARE) - set_irq_chip_and_handler(index, &xtensa_irq_chip, + irq_set_chip_and_handler(index, &xtensa_irq_chip, handle_simple_irq); else if (mask & XCHAL_INTTYPE_MASK_EXTERN_EDGE) - set_irq_chip_and_handler(index, &xtensa_irq_chip, + irq_set_chip_and_handler(index, &xtensa_irq_chip, handle_edge_irq); else if (mask & XCHAL_INTTYPE_MASK_EXTERN_LEVEL) - set_irq_chip_and_handler(index, &xtensa_irq_chip, + irq_set_chip_and_handler(index, &xtensa_irq_chip, handle_level_irq); else if (mask & XCHAL_INTTYPE_MASK_TIMER) - set_irq_chip_and_handler(index, &xtensa_irq_chip, + irq_set_chip_and_handler(index, &xtensa_irq_chip, handle_edge_irq); else /* XCHAL_INTTYPE_MASK_WRITE_ERROR */ /* XCHAL_INTTYPE_MASK_NMI */ - set_irq_chip_and_handler(index, &xtensa_irq_chip, + irq_set_chip_and_handler(index, &xtensa_irq_chip, handle_level_irq); } diff --git a/arch/xtensa/platforms/s6105/device.c b/arch/xtensa/platforms/s6105/device.c index 65333ffefb07..4f4fc971042f 100644 --- a/arch/xtensa/platforms/s6105/device.c +++ b/arch/xtensa/platforms/s6105/device.c @@ -120,7 +120,7 @@ static int __init prepare_phy_irq(int pin) irq = gpio_to_irq(pin); if (irq < 0) goto free; - if (set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0) + if (irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0) goto free; return irq; free: diff --git a/arch/xtensa/variants/s6000/gpio.c b/arch/xtensa/variants/s6000/gpio.c index c694158817b2..7af0757e001b 100644 --- a/arch/xtensa/variants/s6000/gpio.c +++ b/arch/xtensa/variants/s6000/gpio.c @@ -128,7 +128,7 @@ static int set_type(struct irq_data *d, unsigned int type) handler = handle_edge_irq; } writeb(reg, S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IS); - __set_irq_handler_unlocked(irq, handler); + __irq_set_handler_locked(irq, handler); reg = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IEV); if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)) @@ -158,8 +158,8 @@ static u8 demux_masks[4]; static void demux_irqs(unsigned int irq, struct irq_desc *desc) { - struct irq_chip *chip = get_irq_desc_chip(desc); - u8 *mask = get_irq_desc_data(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); + u8 *mask = irq_desc_get_handler_data(desc); u8 pending; int cirq; @@ -218,11 +218,11 @@ void __init variant_init_irq(void) i = ffs(mask); cirq += i; mask >>= i; - set_irq_chip(cirq, &gpioirqs); - set_irq_type(irq, IRQ_TYPE_LEVEL_LOW); + irq_set_chip(cirq, &gpioirqs); + irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW); } while (mask); - set_irq_data(irq, demux_masks + n); - set_irq_chained_handler(irq, demux_irqs); + irq_set_handler_data(irq, demux_masks + n); + irq_set_chained_handler(irq, demux_irqs); if (++n == ARRAY_SIZE(demux_masks)) break; } -- cgit v1.2.3 From 47a5d9dcbb595b1bef54f59ba3846170e13be32a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 18:28:40 +0100 Subject: xtensa: Use generic show_interrupts() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/xtensa/Kconfig | 1 + arch/xtensa/kernel/irq.c | 53 ++++++++---------------------------------------- 2 files changed, 10 insertions(+), 44 deletions(-) diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index a1c7482ad0ec..d0ecf7e2a9b6 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -8,6 +8,7 @@ config XTENSA def_bool y select HAVE_IDE select HAVE_GENERIC_HARDIRQS + select GENERIC_IRQ_SHOW select GENERIC_HARDIRQS_NO_DEPRECATED help Xtensa processors are 32-bit RISC machines designed by Tensilica diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c index 98c0d6bafdf2..d77089df412e 100644 --- a/arch/xtensa/kernel/irq.c +++ b/arch/xtensa/kernel/irq.c @@ -62,51 +62,16 @@ asmlinkage void do_IRQ(int irq, struct pt_regs *regs) set_irq_regs(old_regs); } -/* - * Generic, controller-independent functions: - */ - -int show_interrupts(struct seq_file *p, void *v) +int arch_show_interrupts(struct seq_file *p, int prec) { - int i = *(loff_t *) v, j; - struct irqaction * action; - unsigned long flags; - - if (i == 0) { - seq_printf(p, " "); - for_each_online_cpu(j) - seq_printf(p, "CPU%d ",j); - seq_putc(p, '\n'); - } - - if (i < NR_IRQS) { - raw_spin_lock_irqsave(&irq_desc[i].lock, flags); - action = irq_desc[i].action; - if (!action) - goto skip; - seq_printf(p, "%3d: ",i); -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(i)); -#else - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); -#endif - seq_printf(p, " %14s", irq_desc[i].chip->name); - seq_printf(p, " %s", action->name); - - for (action=action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - - seq_putc(p, '\n'); -skip: - raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } else if (i == NR_IRQS) { - seq_printf(p, "NMI: "); - for_each_online_cpu(j) - seq_printf(p, "%10u ", nmi_count(j)); - seq_putc(p, '\n'); - seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count)); - } + int j; + + seq_printf(p, "%*s: ", prec, "NMI"); + for_each_online_cpu(j) + seq_printf(p, "%10u ", nmi_count(j)); + seq_putc(p, '\n'); + seq_printf(p, "%*s: ", prec, "ERR"); + seq_printf(p, "%10u\n", atomic_read(&irq_err_count)); return 0; } -- cgit v1.2.3 From de4b15c7e9fe9fdd1eb6333be0a08c822db1ca0e Mon Sep 17 00:00:00 2001 From: Andy Adamson <andros@netapp.com> Date: Sat, 12 Mar 2011 02:58:09 -0500 Subject: NFSv4.1 pnfs_layoutcommit_inode fixes Test NFS_INO_LAYOUTCOMMIT before kzalloc Mark inode dirty to retry LAYOUTCOMMIT on kzalloc failure. Add comments. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/pnfs.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 2a08ca0dddc1..ac7112574790 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -982,6 +982,14 @@ pnfs_set_layoutcommit(struct nfs_write_data *wdata) } EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit); +/* + * For the LAYOUT4_NFSV4_1_FILES layout type, NFS_DATA_SYNC WRITEs and + * NFS_UNSTABLE WRITEs with a COMMIT to data servers must store enough + * data to disk to allow the server to recover the data if it crashes. + * LAYOUTCOMMIT is only needed when the NFL4_UFLG_COMMIT_THRU_MDS flag + * is off, and a COMMIT is sent to a data server, or + * if WRITEs to a data server return NFS_DATA_SYNC. + */ int pnfs_layoutcommit_inode(struct inode *inode, int sync) { @@ -994,10 +1002,18 @@ pnfs_layoutcommit_inode(struct inode *inode, int sync) dprintk("--> %s inode %lu\n", __func__, inode->i_ino); + if (!test_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) + return 0; + /* Note kzalloc ensures data->res.seq_res.sr_slot == NULL */ data = kzalloc(sizeof(*data), GFP_NOFS); - spin_lock(&inode->i_lock); + if (!data) { + mark_inode_dirty_sync(inode); + status = -ENOMEM; + goto out; + } + spin_lock(&inode->i_lock); if (!test_and_clear_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) { spin_unlock(&inode->i_lock); kfree(data); @@ -1014,16 +1030,8 @@ pnfs_layoutcommit_inode(struct inode *inode, int sync) lseg->pls_end_pos = 0; lseg->pls_lc_cred = NULL; - if (!data) { - put_lseg(lseg); - spin_unlock(&inode->i_lock); - put_rpccred(cred); - status = -ENOMEM; - goto out; - } else { - memcpy(&data->args.stateid.data, nfsi->layout->plh_stateid.data, - sizeof(nfsi->layout->plh_stateid.data)); - } + memcpy(&data->args.stateid.data, nfsi->layout->plh_stateid.data, + sizeof(nfsi->layout->plh_stateid.data)); spin_unlock(&inode->i_lock); data->args.inode = inode; -- cgit v1.2.3 From ef31153786bc1e4304e6b9422cc8b9efef455611 Mon Sep 17 00:00:00 2001 From: Andy Adamson <andros@netapp.com> Date: Sat, 12 Mar 2011 02:58:10 -0500 Subject: NFSv4.1 convert layoutcommit sync to boolean Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/file.c | 2 +- fs/nfs/nfs4_fs.h | 2 +- fs/nfs/nfs4proc.c | 4 ++-- fs/nfs/pnfs.c | 2 +- fs/nfs/pnfs.h | 4 ++-- fs/nfs/write.c | 8 +++++--- 6 files changed, 12 insertions(+), 10 deletions(-) diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 85cb95de5df5..3ac5bd695e5e 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -328,7 +328,7 @@ nfs_file_fsync(struct file *file, int datasync) ret = status; if (!ret && !datasync) /* application has asked for meta-data sync */ - ret = pnfs_layoutcommit_inode(inode, 1); + ret = pnfs_layoutcommit_inode(inode, true); return ret; } diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 1e612d159b71..4414fd7e7d5e 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -263,7 +263,7 @@ extern int nfs4_init_session(struct nfs_server *server); extern int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo); extern int nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, - int sync); + bool sync); static inline bool is_ds_only_client(struct nfs_client *clp) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 6f2f40239d10..43045fa44710 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5671,7 +5671,7 @@ static const struct rpc_call_ops nfs4_layoutcommit_ops = { }; int -nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, int sync) +nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, bool sync) { struct rpc_message msg = { .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTCOMMIT], @@ -5699,7 +5699,7 @@ nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, int sync) task = rpc_run_task(&task_setup_data); if (IS_ERR(task)) return PTR_ERR(task); - if (!sync) + if (sync == false) goto out; status = nfs4_wait_for_completion_rpc_task(task); if (status != 0) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index ac7112574790..22c2ddbef420 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -991,7 +991,7 @@ EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit); * if WRITEs to a data server return NFS_DATA_SYNC. */ int -pnfs_layoutcommit_inode(struct inode *inode, int sync) +pnfs_layoutcommit_inode(struct inode *inode, bool sync) { struct nfs4_layoutcommit_data *data; struct nfs_inode *nfsi = NFS_I(inode); diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 0806c77862b6..33b9ae90c6f7 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -155,7 +155,7 @@ void pnfs_roc_release(struct inode *ino); void pnfs_roc_set_barrier(struct inode *ino, u32 barrier); bool pnfs_roc_drain(struct inode *ino, u32 *barrier); void pnfs_set_layoutcommit(struct nfs_write_data *wdata); -int pnfs_layoutcommit_inode(struct inode *inode, int sync); +int pnfs_layoutcommit_inode(struct inode *inode, bool sync); static inline int lo_fail_bit(u32 iomode) { @@ -328,7 +328,7 @@ static inline void pnfs_clear_request_commit(struct nfs_page *req) { } -static inline int pnfs_layoutcommit_inode(struct inode *inode, int sync) +static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync) { return 0; } diff --git a/fs/nfs/write.c b/fs/nfs/write.c index a03c11f9081e..85d75254328e 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1566,10 +1566,12 @@ int nfs_write_inode(struct inode *inode, struct writeback_control *wbc) ret = nfs_commit_unstable_pages(inode, wbc); if (ret >= 0 && test_bit(NFS_INO_LAYOUTCOMMIT, &NFS_I(inode)->flags)) { - int status, sync = wbc->sync_mode; + int status; + bool sync = true; - if (wbc->nonblocking || wbc->for_background) - sync = 0; + if (wbc->sync_mode == WB_SYNC_NONE || wbc->nonblocking || + wbc->for_background) + sync = false; status = pnfs_layoutcommit_inode(inode, sync); if (status < 0) -- cgit v1.2.3 From b8c4c96ed4cdecf5ae51fc6f4c006658e873047f Mon Sep 17 00:00:00 2001 From: Christoph Lameter <cl@linux.com> Date: Thu, 24 Mar 2011 14:51:38 -0500 Subject: SLUB: Write to per cpu data when allocating it It turns out that the cmpxchg16b emulation has to access vmalloced percpu memory with interrupts disabled. If the memory has never been touched before then the fault necessary to establish the mapping will not to occur and the kernel will fail on boot. Fix that by reusing the CONFIG_PREEMPT code that writes the cpu number into a field on every cpu. Writing to the per cpu area before causes the mapping to be established before we get to a cmpxchg16b emulation. Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org> --- mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index a6a783594ad4..f881874843a5 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1604,7 +1604,7 @@ static inline void note_cmpxchg_failure(const char *n, void init_kmem_cache_cpus(struct kmem_cache *s) { -#if defined(CONFIG_CMPXCHG_LOCAL) && defined(CONFIG_PREEMPT) +#ifdef CONFIG_CMPXCHG_LOCAL int cpu; for_each_possible_cpu(cpu) -- cgit v1.2.3 From 242214f9c1eeaae40eca11e3b4d37bfce960a7cd Mon Sep 17 00:00:00 2001 From: Don Zickus <dzickus@redhat.com> Date: Thu, 24 Mar 2011 23:36:25 +0300 Subject: perf, x86: P4 PMU - Read proper MSR register to catch unflagged overflows The read of a proper MSR register was missed and instead of counter the configration register was tested (it has ARCH_P4_UNFLAGGED_BIT always cleared) leading to unknown NMI hitting the system. As result the user may obtain "Dazed and confused, but trying to continue" message. Fix it by reading a proper MSR register. When an NMI happens on a P4, the perf nmi handler checks the configuration register to see if the overflow bit is set or not before taking appropriate action. Unfortunately, various P4 machines had a broken overflow bit, so a backup mechanism was implemented. This mechanism checked to see if the counter rolled over or not. A previous commit that implemented this backup mechanism was broken. Instead of reading the counter register, it used the configuration register to determine if the counter rolled over or not. Reading that bit would give incorrect results. This would lead to 'Dazed and confused' messages for the end user when using the perf tool (or if the nmi watchdog is running). The fix is to read the counter register before determining if the counter rolled over or not. Signed-off-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Lin Ming <ming.m.lin@intel.com> LKML-Reference: <4D8BAB49.3080701@openvz.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/cpu/perf_event_p4.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index 3769ac822f96..d3d7b59841e5 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -777,6 +777,7 @@ static inline int p4_pmu_clear_cccr_ovf(struct hw_perf_event *hwc) * the counter has reached zero value and continued counting before * real NMI signal was received: */ + rdmsrl(hwc->event_base, v); if (!(v & ARCH_P4_UNFLAGGED_BIT)) return 1; -- cgit v1.2.3 From 35124a0994fc02545b14b9fa3aad000b3331f1c0 Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson <dros@netapp.com> Date: Thu, 24 Mar 2011 16:48:21 -0400 Subject: Cleanup XDR parsing for LAYOUTGET, GETDEVICEINFO changes LAYOUTGET and GETDEVICEINFO XDR parsing to: - not use vmap, which doesn't work on incoherent archs - use xdr_stream parsing for all xdr Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4filelayout.c | 53 +++++++++++--- fs/nfs/nfs4filelayoutdev.c | 178 +++++++++++++++++++++++++++++++-------------- fs/nfs/nfs4proc.c | 9 +-- fs/nfs/nfs4xdr.c | 30 +++++--- fs/nfs/pnfs.c | 39 ++++++++++ fs/nfs/pnfs.h | 1 - include/linux/nfs_xdr.h | 6 +- 7 files changed, 230 insertions(+), 86 deletions(-) diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index ffb54a082f3a..6f8192f4cfc7 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -502,12 +502,33 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, struct nfs4_layoutget_res *lgr, struct nfs4_deviceid *id) { - uint32_t *p = (uint32_t *)lgr->layout.buf; + struct xdr_stream stream; + struct xdr_buf buf = { + .pages = lgr->layoutp->pages, + .page_len = lgr->layoutp->len, + .buflen = lgr->layoutp->len, + .len = lgr->layoutp->len, + }; + struct page *scratch; + __be32 *p; uint32_t nfl_util; int i; dprintk("%s: set_layout_map Begin\n", __func__); + scratch = alloc_page(GFP_KERNEL); + if (!scratch) + return -ENOMEM; + + xdr_init_decode(&stream, &buf, NULL); + xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE); + + /* 20 = ufl_util (4), first_stripe_index (4), pattern_offset (8), + * num_fh (4) */ + p = xdr_inline_decode(&stream, NFS4_DEVICEID4_SIZE + 20); + if (unlikely(!p)) + goto out_err; + memcpy(id, p, sizeof(*id)); p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE); print_deviceid(id); @@ -529,32 +550,46 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, __func__, nfl_util, fl->num_fh, fl->first_stripe_index, fl->pattern_offset); + if (!fl->num_fh) + goto out_err; + fl->fh_array = kzalloc(fl->num_fh * sizeof(struct nfs_fh *), GFP_KERNEL); if (!fl->fh_array) - return -ENOMEM; + goto out_err; for (i = 0; i < fl->num_fh; i++) { /* Do we want to use a mempool here? */ fl->fh_array[i] = kmalloc(sizeof(struct nfs_fh), GFP_KERNEL); - if (!fl->fh_array[i]) { - filelayout_free_fh_array(fl); - return -ENOMEM; - } + if (!fl->fh_array[i]) + goto out_err_free; + + p = xdr_inline_decode(&stream, 4); + if (unlikely(!p)) + goto out_err_free; fl->fh_array[i]->size = be32_to_cpup(p++); if (sizeof(struct nfs_fh) < fl->fh_array[i]->size) { printk(KERN_ERR "Too big fh %d received %d\n", i, fl->fh_array[i]->size); - filelayout_free_fh_array(fl); - return -EIO; + goto out_err_free; } + + p = xdr_inline_decode(&stream, fl->fh_array[i]->size); + if (unlikely(!p)) + goto out_err_free; memcpy(fl->fh_array[i]->data, p, fl->fh_array[i]->size); - p += XDR_QUADLEN(fl->fh_array[i]->size); dprintk("DEBUG: %s: fh len %d\n", __func__, fl->fh_array[i]->size); } + __free_page(scratch); return 0; + +out_err_free: + filelayout_free_fh_array(fl); +out_err: + __free_page(scratch); + return -EIO; } static void diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c index 68143c162e3b..de5350f2b249 100644 --- a/fs/nfs/nfs4filelayoutdev.c +++ b/fs/nfs/nfs4filelayoutdev.c @@ -261,7 +261,7 @@ out: * Currently only support ipv4, and one multi-path address. */ static struct nfs4_pnfs_ds * -decode_and_add_ds(__be32 **pp, struct inode *inode) +decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode) { struct nfs4_pnfs_ds *ds = NULL; char *buf; @@ -269,25 +269,34 @@ decode_and_add_ds(__be32 **pp, struct inode *inode) u32 ip_addr, port; int nlen, rlen, i; int tmp[2]; - __be32 *r_netid, *r_addr, *p = *pp; + __be32 *p; /* r_netid */ + p = xdr_inline_decode(streamp, 4); + if (unlikely(!p)) + goto out_err; nlen = be32_to_cpup(p++); - r_netid = p; - p += XDR_QUADLEN(nlen); - /* r_addr */ - rlen = be32_to_cpup(p++); - r_addr = p; - p += XDR_QUADLEN(rlen); - *pp = p; + p = xdr_inline_decode(streamp, nlen); + if (unlikely(!p)) + goto out_err; /* Check that netid is "tcp" */ - if (nlen != 3 || memcmp((char *)r_netid, "tcp", 3)) { + if (nlen != 3 || memcmp((char *)p, "tcp", 3)) { dprintk("%s: ERROR: non ipv4 TCP r_netid\n", __func__); goto out_err; } + /* r_addr */ + p = xdr_inline_decode(streamp, 4); + if (unlikely(!p)) + goto out_err; + rlen = be32_to_cpup(p); + + p = xdr_inline_decode(streamp, rlen); + if (unlikely(!p)) + goto out_err; + /* ipv6 length plus port is legal */ if (rlen > INET6_ADDRSTRLEN + 8) { dprintk("%s: Invalid address, length %d\n", __func__, @@ -300,7 +309,7 @@ decode_and_add_ds(__be32 **pp, struct inode *inode) goto out_err; } buf[rlen] = '\0'; - memcpy(buf, r_addr, rlen); + memcpy(buf, p, rlen); /* replace the port dots with dashes for the in4_pton() delimiter*/ for (i = 0; i < 2; i++) { @@ -336,90 +345,154 @@ out_err: static struct nfs4_file_layout_dsaddr* decode_device(struct inode *ino, struct pnfs_device *pdev) { - int i, dummy; + int i; u32 cnt, num; u8 *indexp; - __be32 *p = (__be32 *)pdev->area, *indicesp; - struct nfs4_file_layout_dsaddr *dsaddr; + __be32 *p; + u8 *stripe_indices; + u8 max_stripe_index; + struct nfs4_file_layout_dsaddr *dsaddr = NULL; + struct xdr_stream stream; + struct xdr_buf buf = { + .pages = pdev->pages, + .page_len = pdev->pglen, + .buflen = pdev->pglen, + .len = pdev->pglen, + }; + struct page *scratch; + + /* set up xdr stream */ + scratch = alloc_page(GFP_KERNEL); + if (!scratch) + goto out_err; + + xdr_init_decode(&stream, &buf, NULL); + xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE); /* Get the stripe count (number of stripe index) */ - cnt = be32_to_cpup(p++); + p = xdr_inline_decode(&stream, 4); + if (unlikely(!p)) + goto out_err_free_scratch; + + cnt = be32_to_cpup(p); dprintk("%s stripe count %d\n", __func__, cnt); if (cnt > NFS4_PNFS_MAX_STRIPE_CNT) { printk(KERN_WARNING "%s: stripe count %d greater than " "supported maximum %d\n", __func__, cnt, NFS4_PNFS_MAX_STRIPE_CNT); - goto out_err; + goto out_err_free_scratch; + } + + /* read stripe indices */ + stripe_indices = kcalloc(cnt, sizeof(u8), GFP_KERNEL); + if (!stripe_indices) + goto out_err_free_scratch; + + p = xdr_inline_decode(&stream, cnt << 2); + if (unlikely(!p)) + goto out_err_free_stripe_indices; + + indexp = &stripe_indices[0]; + max_stripe_index = 0; + for (i = 0; i < cnt; i++) { + *indexp = be32_to_cpup(p++); + max_stripe_index = max(max_stripe_index, *indexp); + indexp++; } /* Check the multipath list count */ - indicesp = p; - p += XDR_QUADLEN(cnt << 2); - num = be32_to_cpup(p++); + p = xdr_inline_decode(&stream, 4); + if (unlikely(!p)) + goto out_err_free_stripe_indices; + + num = be32_to_cpup(p); dprintk("%s ds_num %u\n", __func__, num); if (num > NFS4_PNFS_MAX_MULTI_CNT) { printk(KERN_WARNING "%s: multipath count %d greater than " "supported maximum %d\n", __func__, num, NFS4_PNFS_MAX_MULTI_CNT); - goto out_err; + goto out_err_free_stripe_indices; } + + /* validate stripe indices are all < num */ + if (max_stripe_index >= num) { + printk(KERN_WARNING "%s: stripe index %u >= num ds %u\n", + __func__, max_stripe_index, num); + goto out_err_free_stripe_indices; + } + dsaddr = kzalloc(sizeof(*dsaddr) + (sizeof(struct nfs4_pnfs_ds *) * (num - 1)), GFP_KERNEL); if (!dsaddr) - goto out_err; - - dsaddr->stripe_indices = kzalloc(sizeof(u8) * cnt, GFP_KERNEL); - if (!dsaddr->stripe_indices) - goto out_err_free; + goto out_err_free_stripe_indices; dsaddr->stripe_count = cnt; + dsaddr->stripe_indices = stripe_indices; + stripe_indices = NULL; dsaddr->ds_num = num; memcpy(&dsaddr->deviceid, &pdev->dev_id, sizeof(pdev->dev_id)); - /* Go back an read stripe indices */ - p = indicesp; - indexp = &dsaddr->stripe_indices[0]; - for (i = 0; i < dsaddr->stripe_count; i++) { - *indexp = be32_to_cpup(p++); - if (*indexp >= num) - goto out_err_free; - indexp++; - } - /* Skip already read multipath list count */ - p++; - for (i = 0; i < dsaddr->ds_num; i++) { int j; + u32 mp_count; + + p = xdr_inline_decode(&stream, 4); + if (unlikely(!p)) + goto out_err_free_deviceid; - dummy = be32_to_cpup(p++); /* multipath count */ - if (dummy > 1) { + mp_count = be32_to_cpup(p); /* multipath count */ + if (mp_count > 1) { printk(KERN_WARNING "%s: Multipath count %d not supported, " "skipping all greater than 1\n", __func__, - dummy); + mp_count); } - for (j = 0; j < dummy; j++) { + for (j = 0; j < mp_count; j++) { if (j == 0) { - dsaddr->ds_list[i] = decode_and_add_ds(&p, ino); + dsaddr->ds_list[i] = decode_and_add_ds(&stream, + ino); if (dsaddr->ds_list[i] == NULL) - goto out_err_free; + goto out_err_free_deviceid; } else { u32 len; /* skip extra multipath */ - len = be32_to_cpup(p++); - p += XDR_QUADLEN(len); - len = be32_to_cpup(p++); - p += XDR_QUADLEN(len); - continue; + + /* read len, skip */ + p = xdr_inline_decode(&stream, 4); + if (unlikely(!p)) + goto out_err_free_deviceid; + len = be32_to_cpup(p); + + p = xdr_inline_decode(&stream, len); + if (unlikely(!p)) + goto out_err_free_deviceid; + + /* read len, skip */ + p = xdr_inline_decode(&stream, 4); + if (unlikely(!p)) + goto out_err_free_deviceid; + len = be32_to_cpup(p); + + p = xdr_inline_decode(&stream, len); + if (unlikely(!p)) + goto out_err_free_deviceid; } } } + + __free_page(scratch); return dsaddr; -out_err_free: +out_err_free_deviceid: nfs4_fl_free_deviceid(dsaddr); + /* stripe_indicies was part of dsaddr */ + goto out_err_free_scratch; +out_err_free_stripe_indices: + kfree(stripe_indices); +out_err_free_scratch: + __free_page(scratch); out_err: dprintk("%s ERROR: returning NULL\n", __func__); return NULL; @@ -498,11 +571,6 @@ get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id) goto out_free; } - /* set pdev->area */ - pdev->area = vmap(pages, max_pages, VM_MAP, PAGE_KERNEL); - if (!pdev->area) - goto out_free; - memcpy(&pdev->dev_id, dev_id, sizeof(*dev_id)); pdev->layout_type = LAYOUT_NFSV4_1_FILES; pdev->pages = pages; @@ -521,8 +589,6 @@ get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id) */ dsaddr = decode_and_add_device(inode, pdev); out_free: - if (pdev->area != NULL) - vunmap(pdev->area); for (i = 0; i < max_pages; i++) __free_page(pages[i]); kfree(pages); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 43045fa44710..8f071314e94b 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5526,8 +5526,6 @@ static void nfs4_layoutget_release(void *calldata) struct nfs4_layoutget *lgp = calldata; dprintk("--> %s\n", __func__); - if (lgp->res.layout.buf != NULL) - free_page((unsigned long) lgp->res.layout.buf); put_nfs_open_context(lgp->args.ctx); kfree(calldata); dprintk("<-- %s\n", __func__); @@ -5559,12 +5557,7 @@ int nfs4_proc_layoutget(struct nfs4_layoutget *lgp) dprintk("--> %s\n", __func__); - lgp->res.layout.buf = (void *)__get_free_page(GFP_NOFS); - if (lgp->res.layout.buf == NULL) { - nfs4_layoutget_release(lgp); - return -ENOMEM; - } - + lgp->res.layoutp = &lgp->args.layout; lgp->res.seq_res.sr_slot = NULL; task = rpc_run_task(&task_setup_data); if (IS_ERR(task)) diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 207d399c8dee..40da65e8fa2a 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -2656,6 +2656,10 @@ static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, NFS_FH(args->inode), &hdr); encode_layoutget(xdr, args, &hdr); + + xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, + args->layout.pages, 0, args->layout.pglen); + encode_nops(&hdr); } @@ -5022,6 +5026,9 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, __be32 *p; int status; u32 layout_count; + struct xdr_buf *rcvbuf = &req->rq_rcv_buf; + struct kvec *iov = rcvbuf->head; + u32 hdrlen, recvd; status = decode_op_hdr(xdr, OP_LAYOUTGET); if (status) @@ -5038,17 +5045,14 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, return -EINVAL; } - p = xdr_inline_decode(xdr, 24); + p = xdr_inline_decode(xdr, 28); if (unlikely(!p)) goto out_overflow; p = xdr_decode_hyper(p, &res->range.offset); p = xdr_decode_hyper(p, &res->range.length); res->range.iomode = be32_to_cpup(p++); res->type = be32_to_cpup(p++); - - status = decode_opaque_inline(xdr, &res->layout.len, (char **)&p); - if (unlikely(status)) - return status; + res->layoutp->len = be32_to_cpup(p); dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", __func__, @@ -5056,12 +5060,18 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, (unsigned long)res->range.length, res->range.iomode, res->type, - res->layout.len); + res->layoutp->len); + + hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; + recvd = req->rq_rcv_buf.len - hdrlen; + if (res->layoutp->len > recvd) { + dprintk("NFS: server cheating in layoutget reply: " + "layout len %u > recvd %u\n", + res->layoutp->len, recvd); + return -EINVAL; + } - /* nfs4_proc_layoutget allocated a single page */ - if (res->layout.len > PAGE_SIZE) - return -ENOMEM; - memcpy(res->layout.buf, p, res->layout.len); + xdr_read_pages(xdr, res->layoutp->len); if (layout_count > 1) { /* We only handle a length one array at the moment. Any diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 22c2ddbef420..d9ab97269ce6 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -472,6 +472,9 @@ send_layoutget(struct pnfs_layout_hdr *lo, struct nfs_server *server = NFS_SERVER(ino); struct nfs4_layoutget *lgp; struct pnfs_layout_segment *lseg = NULL; + struct page **pages = NULL; + int i; + u32 max_resp_sz, max_pages; dprintk("--> %s\n", __func__); @@ -479,6 +482,21 @@ send_layoutget(struct pnfs_layout_hdr *lo, lgp = kzalloc(sizeof(*lgp), GFP_KERNEL); if (lgp == NULL) return NULL; + + /* allocate pages for xdr post processing */ + max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz; + max_pages = max_resp_sz >> PAGE_SHIFT; + + pages = kzalloc(max_pages * sizeof(struct page *), GFP_KERNEL); + if (!pages) + goto out_err_free; + + for (i = 0; i < max_pages; i++) { + pages[i] = alloc_page(GFP_KERNEL); + if (!pages[i]) + goto out_err_free; + } + lgp->args.minlength = NFS4_MAX_UINT64; lgp->args.maxcount = PNFS_LAYOUT_MAXSIZE; lgp->args.range.iomode = iomode; @@ -487,6 +505,8 @@ send_layoutget(struct pnfs_layout_hdr *lo, lgp->args.type = server->pnfs_curr_ld->id; lgp->args.inode = ino; lgp->args.ctx = get_nfs_open_context(ctx); + lgp->args.layout.pages = pages; + lgp->args.layout.pglen = max_pages * PAGE_SIZE; lgp->lsegpp = &lseg; /* Synchronously retrieve layout information from server and @@ -497,7 +517,26 @@ send_layoutget(struct pnfs_layout_hdr *lo, /* remember that LAYOUTGET failed and suspend trying */ set_bit(lo_fail_bit(iomode), &lo->plh_flags); } + + /* free xdr pages */ + for (i = 0; i < max_pages; i++) + __free_page(pages[i]); + kfree(pages); + return lseg; + +out_err_free: + /* free any allocated xdr pages, lgp as it's not used */ + if (pages) { + for (i = 0; i < max_pages; i++) { + if (!pages[i]) + break; + __free_page(pages[i]); + } + kfree(pages); + } + kfree(lgp); + return NULL; } bool pnfs_roc(struct inode *ino) diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 33b9ae90c6f7..bc4827202e7a 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -109,7 +109,6 @@ struct pnfs_device { unsigned int layout_type; unsigned int mincount; struct page **pages; - void *area; unsigned int pgbase; unsigned int pglen; }; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 84f3585c5728..a6e21b10f43d 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -190,8 +190,9 @@ struct nfs4_get_lease_time_res { #define PNFS_LAYOUT_MAXSIZE 4096 struct nfs4_layoutdriver_data { + struct page **pages; + __u32 pglen; __u32 len; - void *buf; }; struct pnfs_layout_range { @@ -209,6 +210,7 @@ struct nfs4_layoutget_args { struct nfs_open_context *ctx; struct nfs4_sequence_args seq_args; nfs4_stateid stateid; + struct nfs4_layoutdriver_data layout; }; struct nfs4_layoutget_res { @@ -216,8 +218,8 @@ struct nfs4_layoutget_res { struct pnfs_layout_range range; __u32 type; nfs4_stateid stateid; - struct nfs4_layoutdriver_data layout; struct nfs4_sequence_res seq_res; + struct nfs4_layoutdriver_data *layoutp; }; struct nfs4_layoutget { -- cgit v1.2.3 From 00a30b254b88d2d4f5af00835a9b7f70326def9b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 22:53:10 +0100 Subject: x86: DT: Fix return condition in irq_create_of_mapping() The xlate() function returns 0 or a negative error code. Returning the error code blindly will be seen as an huge irq number by the calling function because irq_create_of_mapping() returns an unsigned value. Return 0 (NO_IRQ) as required. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- arch/x86/kernel/devicetree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index 7a8cebc9ff29..9c91badb6ca9 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -65,7 +65,7 @@ unsigned int irq_create_of_mapping(struct device_node *controller, return 0; ret = ih->xlate(ih, intspec, intsize, &virq, &type); if (ret) - return ret; + return 0; if (type == IRQ_TYPE_NONE) return virq; /* set the mask if it is different from current */ -- cgit v1.2.3 From 07611dbda5ccbd9a628f29686d62bafdd007db7b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 21:41:57 +0100 Subject: x86: DT: Cleanup namespace and call irq_set_irq_type() unconditional That call escaped the name space cleanup. Fix it up. We really want to call there. The chip might have changed since the irq was setup initially. So let the core code and the chip decide what to do. The status is just an unreliable snapshot. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- arch/x86/kernel/devicetree.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index 9c91badb6ca9..706a9fb46a58 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -68,9 +68,7 @@ unsigned int irq_create_of_mapping(struct device_node *controller, return 0; if (type == IRQ_TYPE_NONE) return virq; - /* set the mask if it is different from current */ - if (type == (irq_to_desc(virq)->status & IRQF_TRIGGER_MASK)) - set_irq_type(virq, type); + irq_set_irq_type(virq, type); return virq; } EXPORT_SYMBOL_GPL(irq_create_of_mapping); -- cgit v1.2.3 From b15f052cb8c1ba2a55998707f29dc8a8e5cc40ca Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 21:27:35 +0000 Subject: arm/gpio: Remove three copies of broken and racy debug code gpiolib plus two gpio implementations in arm fiddle in the guts of irq_desc in a racy and buggy way. Remove the stuff. I already told the gpio folks that we can provide that information in a proper way if necessary. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> LKML-Reference: <20110324212508.931638262@linutronix.de> --- arch/arm/mach-ep93xx/gpio.c | 39 -------------------------------------- arch/arm/plat-nomadik/gpio.c | 45 -------------------------------------------- drivers/gpio/gpiolib.c | 45 -------------------------------------------- 3 files changed, 129 deletions(-) diff --git a/arch/arm/mach-ep93xx/gpio.c b/arch/arm/mach-ep93xx/gpio.c index a889fa7c3ba1..e327fd107c3f 100644 --- a/arch/arm/mach-ep93xx/gpio.c +++ b/arch/arm/mach-ep93xx/gpio.c @@ -366,45 +366,6 @@ static void ep93xx_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) gpiochip_is_requested(chip, i) ? : "", is_out ? "out" : "in ", (data_reg & (1 << i)) ? "hi" : "lo"); - - if (!is_out) { - int irq = gpio_to_irq(gpio); - struct irq_desc *desc = irq_desc + irq; - - if (irq >= 0 && desc->action) { - char *trigger; - - switch (desc->status & IRQ_TYPE_SENSE_MASK) { - case IRQ_TYPE_NONE: - trigger = "(default)"; - break; - case IRQ_TYPE_EDGE_FALLING: - trigger = "edge-falling"; - break; - case IRQ_TYPE_EDGE_RISING: - trigger = "edge-rising"; - break; - case IRQ_TYPE_EDGE_BOTH: - trigger = "edge-both"; - break; - case IRQ_TYPE_LEVEL_HIGH: - trigger = "level-high"; - break; - case IRQ_TYPE_LEVEL_LOW: - trigger = "level-low"; - break; - default: - trigger = "?trigger?"; - break; - } - - seq_printf(s, " irq-%d %s%s", - irq, trigger, - (desc->status & IRQ_WAKEUP) - ? " wakeup" : ""); - } - } - seq_printf(s, "\n"); } } diff --git a/arch/arm/plat-nomadik/gpio.c b/arch/arm/plat-nomadik/gpio.c index 70620426ee55..80643bc38e10 100644 --- a/arch/arm/plat-nomadik/gpio.c +++ b/arch/arm/plat-nomadik/gpio.c @@ -832,51 +832,6 @@ static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) : "? ", (mode < 0) ? "unknown" : modes[mode], pull ? "pull" : "none"); - - if (!is_out) { - int irq = gpio_to_irq(gpio); - struct irq_desc *desc = irq_to_desc(irq); - - /* This races with request_irq(), set_irq_type(), - * and set_irq_wake() ... but those are "rare". - * - * More significantly, trigger type flags aren't - * currently maintained by genirq. - */ - if (irq >= 0 && desc->action) { - char *trigger; - - switch (desc->status & IRQ_TYPE_SENSE_MASK) { - case IRQ_TYPE_NONE: - trigger = "(default)"; - break; - case IRQ_TYPE_EDGE_FALLING: - trigger = "edge-falling"; - break; - case IRQ_TYPE_EDGE_RISING: - trigger = "edge-rising"; - break; - case IRQ_TYPE_EDGE_BOTH: - trigger = "edge-both"; - break; - case IRQ_TYPE_LEVEL_HIGH: - trigger = "level-high"; - break; - case IRQ_TYPE_LEVEL_LOW: - trigger = "level-low"; - break; - default: - trigger = "?trigger?"; - break; - } - - seq_printf(s, " irq-%d %s%s", - irq, trigger, - (desc->status & IRQ_WAKEUP) - ? " wakeup" : ""); - } - } - seq_printf(s, "\n"); } } diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 649550e2cae9..36a2974815b7 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1656,51 +1656,6 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip) chip->get ? (chip->get(chip, i) ? "hi" : "lo") : "? "); - - if (!is_out) { - int irq = gpio_to_irq(gpio); - struct irq_desc *desc = irq_to_desc(irq); - - /* This races with request_irq(), set_irq_type(), - * and set_irq_wake() ... but those are "rare". - * - * More significantly, trigger type flags aren't - * currently maintained by genirq. - */ - if (irq >= 0 && desc->action) { - char *trigger; - - switch (desc->status & IRQ_TYPE_SENSE_MASK) { - case IRQ_TYPE_NONE: - trigger = "(default)"; - break; - case IRQ_TYPE_EDGE_FALLING: - trigger = "edge-falling"; - break; - case IRQ_TYPE_EDGE_RISING: - trigger = "edge-rising"; - break; - case IRQ_TYPE_EDGE_BOTH: - trigger = "edge-both"; - break; - case IRQ_TYPE_LEVEL_HIGH: - trigger = "level-high"; - break; - case IRQ_TYPE_LEVEL_LOW: - trigger = "level-low"; - break; - default: - trigger = "?trigger?"; - break; - } - - seq_printf(s, " irq-%d %s%s", - irq, trigger, - (desc->status & IRQ_WAKEUP) - ? " wakeup" : ""); - } - } - seq_printf(s, "\n"); } } -- cgit v1.2.3 From 778b548ced16b4bdca7ee2b694796f22ac24437f Mon Sep 17 00:00:00 2001 From: Ryan Mallon <ryan@bluewatersys.com> Date: Thu, 24 Mar 2011 23:46:46 +0100 Subject: arm: ep93xx: Add basic interrupt info For the time being can we fix up the ep93xx gpio code with the amended patch below. It keeps the information that the pin is also configured as an interrupt and cleans the code up a bit. [ tglx: Rebased it on the removal patch ] Signed-off-by: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/arm/mach-ep93xx/gpio.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-ep93xx/gpio.c b/arch/arm/mach-ep93xx/gpio.c index e327fd107c3f..34e071d79761 100644 --- a/arch/arm/mach-ep93xx/gpio.c +++ b/arch/arm/mach-ep93xx/gpio.c @@ -360,13 +360,14 @@ static void ep93xx_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) gpio = ep93xx_chip->chip.base; for (i = 0; i < chip->ngpio; i++, gpio++) { int is_out = data_dir_reg & (1 << i); + int irq = gpio_to_irq(gpio); - seq_printf(s, " %s%d gpio-%-3d (%-12s) %s %s", + seq_printf(s, " %s%d gpio-%-3d (%-12s) %s %s %s\n", chip->label, i, gpio, gpiochip_is_requested(chip, i) ? : "", is_out ? "out" : "in ", - (data_reg & (1 << i)) ? "hi" : "lo"); - seq_printf(s, "\n"); + (data_reg & (1<< i)) ? "hi" : "lo", + (!is_out && irq>= 0) ? "(interrupt)" : ""); } } -- cgit v1.2.3 From b51804bcf0774a8bc6af1e8bb6ae818f4b71173a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 21:27:36 +0000 Subject: gpio: Cleanup genirq namespace Converted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> LKML-Reference: <20110324212509.025730689@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- drivers/gpio/adp5588-gpio.c | 8 ++++---- drivers/gpio/max732x.c | 8 ++++---- drivers/gpio/pca953x.c | 6 +++--- drivers/gpio/pl061.c | 14 +++++++------- drivers/gpio/stmpe-gpio.c | 12 ++++++------ drivers/gpio/sx150x.c | 10 +++++----- drivers/gpio/tc3589x-gpio.c | 12 ++++++------ drivers/gpio/timbgpio.c | 18 +++++++++--------- drivers/gpio/vr41xx_giu.c | 12 ++++++------ 9 files changed, 50 insertions(+), 50 deletions(-) diff --git a/drivers/gpio/adp5588-gpio.c b/drivers/gpio/adp5588-gpio.c index 33fc685cb385..3525ad918771 100644 --- a/drivers/gpio/adp5588-gpio.c +++ b/drivers/gpio/adp5588-gpio.c @@ -289,10 +289,10 @@ static int adp5588_irq_setup(struct adp5588_gpio *dev) for (gpio = 0; gpio < dev->gpio_chip.ngpio; gpio++) { int irq = gpio + dev->irq_base; - set_irq_chip_data(irq, dev); - set_irq_chip_and_handler(irq, &adp5588_irq_chip, + irq_set_chip_data(irq, dev); + irq_set_chip_and_handler(irq, &adp5588_irq_chip, handle_level_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM /* * ARM needs us to explicitly flag the IRQ as VALID, @@ -300,7 +300,7 @@ static int adp5588_irq_setup(struct adp5588_gpio *dev) */ set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } diff --git a/drivers/gpio/max732x.c b/drivers/gpio/max732x.c index 9e1d01f0071a..ad6951edc16c 100644 --- a/drivers/gpio/max732x.c +++ b/drivers/gpio/max732x.c @@ -470,14 +470,14 @@ static int max732x_irq_setup(struct max732x_chip *chip, if (!(chip->dir_input & (1 << lvl))) continue; - set_irq_chip_data(irq, chip); - set_irq_chip_and_handler(irq, &max732x_irq_chip, + irq_set_chip_data(irq, chip); + irq_set_chip_and_handler(irq, &max732x_irq_chip, handle_edge_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index 2fc25dec7cf5..583e92592073 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -395,13 +395,13 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, for (lvl = 0; lvl < chip->gpio_chip.ngpio; lvl++) { int irq = lvl + chip->irq_base; - set_irq_chip_data(irq, chip); - set_irq_chip_and_handler(irq, &pca953x_irq_chip, + irq_set_chip_data(irq, chip); + irq_set_chip_and_handler(irq, &pca953x_irq_chip, handle_edge_irq); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c index 838ddbdf90cc..901e4e06b377 100644 --- a/drivers/gpio/pl061.c +++ b/drivers/gpio/pl061.c @@ -210,7 +210,7 @@ static struct irq_chip pl061_irqchip = { static void pl061_irq_handler(unsigned irq, struct irq_desc *desc) { - struct list_head *chip_list = get_irq_data(irq); + struct list_head *chip_list = irq_get_handler_data(irq); struct list_head *ptr; struct pl061_gpio *chip; @@ -294,7 +294,7 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) ret = -ENODEV; goto iounmap; } - set_irq_chained_handler(irq, pl061_irq_handler); + irq_set_chained_handler(irq, pl061_irq_handler); if (!test_and_set_bit(irq, init_irq)) { /* list initialized? */ chip_list = kmalloc(sizeof(*chip_list), GFP_KERNEL); if (chip_list == NULL) { @@ -303,9 +303,9 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) goto iounmap; } INIT_LIST_HEAD(chip_list); - set_irq_data(irq, chip_list); + irq_set_handler_data(irq, chip_list); } else - chip_list = get_irq_data(irq); + chip_list = irq_get_handler_data(irq); list_add(&chip->list, chip_list); for (i = 0; i < PL061_GPIO_NR; i++) { @@ -315,10 +315,10 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) else pl061_direction_input(&chip->gc, i); - set_irq_chip(i+chip->irq_base, &pl061_irqchip); - set_irq_handler(i+chip->irq_base, handle_simple_irq); + irq_set_chip(i + chip->irq_base, &pl061_irqchip); + irq_set_handler(i + chip->irq_base, handle_simple_irq); set_irq_flags(i+chip->irq_base, IRQF_VALID); - set_irq_chip_data(i+chip->irq_base, chip); + irq_set_chip_data(i + chip->irq_base, chip); } return 0; diff --git a/drivers/gpio/stmpe-gpio.c b/drivers/gpio/stmpe-gpio.c index eb2901f8ab5e..4c980b573328 100644 --- a/drivers/gpio/stmpe-gpio.c +++ b/drivers/gpio/stmpe-gpio.c @@ -254,14 +254,14 @@ static int __devinit stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio) int irq; for (irq = base; irq < base + stmpe_gpio->chip.ngpio; irq++) { - set_irq_chip_data(irq, stmpe_gpio); - set_irq_chip_and_handler(irq, &stmpe_gpio_irq_chip, + irq_set_chip_data(irq, stmpe_gpio); + irq_set_chip_and_handler(irq, &stmpe_gpio_irq_chip, handle_simple_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -277,8 +277,8 @@ static void stmpe_gpio_irq_remove(struct stmpe_gpio *stmpe_gpio) #ifdef CONFIG_ARM set_irq_flags(irq, 0); #endif - set_irq_chip_and_handler(irq, NULL, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); + irq_set_chip_data(irq, NULL); } } diff --git a/drivers/gpio/sx150x.c b/drivers/gpio/sx150x.c index d2f874c3d3d5..0370ecf63edf 100644 --- a/drivers/gpio/sx150x.c +++ b/drivers/gpio/sx150x.c @@ -551,12 +551,12 @@ static int sx150x_install_irq_chip(struct sx150x_chip *chip, for (n = 0; n < chip->dev_cfg->ngpios; ++n) { irq = irq_base + n; - set_irq_chip_and_handler(irq, &chip->irq_chip, handle_edge_irq); - set_irq_nested_thread(irq, 1); + irq_set_chip_and_handler(irq, &chip->irq_chip, handle_edge_irq); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -583,8 +583,8 @@ static void sx150x_remove_irq_chip(struct sx150x_chip *chip) for (n = 0; n < chip->dev_cfg->ngpios; ++n) { irq = chip->irq_base + n; - set_irq_handler(irq, NULL); - set_irq_chip(irq, NULL); + irq_set_handler(irq, NULL); + irq_set_chip(irq, NULL); } } diff --git a/drivers/gpio/tc3589x-gpio.c b/drivers/gpio/tc3589x-gpio.c index 27200af1a595..2a82e8999a42 100644 --- a/drivers/gpio/tc3589x-gpio.c +++ b/drivers/gpio/tc3589x-gpio.c @@ -239,14 +239,14 @@ static int tc3589x_gpio_irq_init(struct tc3589x_gpio *tc3589x_gpio) int irq; for (irq = base; irq < base + tc3589x_gpio->chip.ngpio; irq++) { - set_irq_chip_data(irq, tc3589x_gpio); - set_irq_chip_and_handler(irq, &tc3589x_gpio_irq_chip, + irq_set_chip_data(irq, tc3589x_gpio); + irq_set_chip_and_handler(irq, &tc3589x_gpio_irq_chip, handle_simple_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -262,8 +262,8 @@ static void tc3589x_gpio_irq_remove(struct tc3589x_gpio *tc3589x_gpio) #ifdef CONFIG_ARM set_irq_flags(irq, 0); #endif - set_irq_chip_and_handler(irq, NULL, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); + irq_set_chip_data(irq, NULL); } } diff --git a/drivers/gpio/timbgpio.c b/drivers/gpio/timbgpio.c index 58c8f30352dd..0265872e57d1 100644 --- a/drivers/gpio/timbgpio.c +++ b/drivers/gpio/timbgpio.c @@ -195,7 +195,7 @@ out: static void timbgpio_irq(unsigned int irq, struct irq_desc *desc) { - struct timbgpio *tgpio = get_irq_data(irq); + struct timbgpio *tgpio = irq_get_handler_data(irq); unsigned long ipr; int offset; @@ -291,16 +291,16 @@ static int __devinit timbgpio_probe(struct platform_device *pdev) return 0; for (i = 0; i < pdata->nr_pins; i++) { - set_irq_chip_and_handler_name(tgpio->irq_base + i, + irq_set_chip_and_handler_name(tgpio->irq_base + i, &timbgpio_irqchip, handle_simple_irq, "mux"); - set_irq_chip_data(tgpio->irq_base + i, tgpio); + irq_set_chip_data(tgpio->irq_base + i, tgpio); #ifdef CONFIG_ARM set_irq_flags(tgpio->irq_base + i, IRQF_VALID | IRQF_PROBE); #endif } - set_irq_data(irq, tgpio); - set_irq_chained_handler(irq, timbgpio_irq); + irq_set_handler_data(irq, tgpio); + irq_set_chained_handler(irq, timbgpio_irq); return 0; @@ -327,12 +327,12 @@ static int __devexit timbgpio_remove(struct platform_device *pdev) if (irq >= 0 && tgpio->irq_base > 0) { int i; for (i = 0; i < pdata->nr_pins; i++) { - set_irq_chip(tgpio->irq_base + i, NULL); - set_irq_chip_data(tgpio->irq_base + i, NULL); + irq_set_chip(tgpio->irq_base + i, NULL); + irq_set_chip_data(tgpio->irq_base + i, NULL); } - set_irq_handler(irq, NULL); - set_irq_data(irq, NULL); + irq_set_handler(irq, NULL); + irq_set_handler_data(irq, NULL); } err = gpiochip_remove(&tgpio->gpio); diff --git a/drivers/gpio/vr41xx_giu.c b/drivers/gpio/vr41xx_giu.c index cffa3bd7ad3b..a365be040b36 100644 --- a/drivers/gpio/vr41xx_giu.c +++ b/drivers/gpio/vr41xx_giu.c @@ -238,13 +238,13 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, break; } } - set_irq_chip_and_handler(GIU_IRQ(pin), + irq_set_chip_and_handler(GIU_IRQ(pin), &giuint_low_irq_chip, handle_edge_irq); } else { giu_clear(GIUINTTYPL, mask); giu_clear(GIUINTHTSELL, mask); - set_irq_chip_and_handler(GIU_IRQ(pin), + irq_set_chip_and_handler(GIU_IRQ(pin), &giuint_low_irq_chip, handle_level_irq); } @@ -273,13 +273,13 @@ void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, break; } } - set_irq_chip_and_handler(GIU_IRQ(pin), + irq_set_chip_and_handler(GIU_IRQ(pin), &giuint_high_irq_chip, handle_edge_irq); } else { giu_clear(GIUINTTYPH, mask); giu_clear(GIUINTHTSELH, mask); - set_irq_chip_and_handler(GIU_IRQ(pin), + irq_set_chip_and_handler(GIU_IRQ(pin), &giuint_high_irq_chip, handle_level_irq); } @@ -539,9 +539,9 @@ static int __devinit giu_probe(struct platform_device *pdev) chip = &giuint_high_irq_chip; if (trigger & (1 << pin)) - set_irq_chip_and_handler(i, chip, handle_edge_irq); + irq_set_chip_and_handler(i, chip, handle_edge_irq); else - set_irq_chip_and_handler(i, chip, handle_level_irq); + irq_set_chip_and_handler(i, chip, handle_level_irq); } -- cgit v1.2.3 From 08f1b807355c8d355885a71e7fd462fe9d499411 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Thu, 24 Mar 2011 21:27:37 +0000 Subject: gpio: Fold irq_set_chip/irq_set_handler to irq_set_chip_and_handler Converted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> LKML-Reference: <20110324212509.118888535@linutronix.de> --- drivers/gpio/pl061.c | 4 ++-- drivers/gpio/sx150x.c | 3 +-- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c index 901e4e06b377..6fcb28cdd862 100644 --- a/drivers/gpio/pl061.c +++ b/drivers/gpio/pl061.c @@ -315,8 +315,8 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id) else pl061_direction_input(&chip->gc, i); - irq_set_chip(i + chip->irq_base, &pl061_irqchip); - irq_set_handler(i + chip->irq_base, handle_simple_irq); + irq_set_chip_and_handler(i + chip->irq_base, &pl061_irqchip, + handle_simple_irq); set_irq_flags(i+chip->irq_base, IRQF_VALID); irq_set_chip_data(i + chip->irq_base, chip); } diff --git a/drivers/gpio/sx150x.c b/drivers/gpio/sx150x.c index 0370ecf63edf..a4f73534394e 100644 --- a/drivers/gpio/sx150x.c +++ b/drivers/gpio/sx150x.c @@ -583,8 +583,7 @@ static void sx150x_remove_irq_chip(struct sx150x_chip *chip) for (n = 0; n < chip->dev_cfg->ngpios; ++n) { irq = chip->irq_base + n; - irq_set_handler(irq, NULL); - irq_set_chip(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); } } -- cgit v1.2.3 From f7594d42944c0dfca90318f50978a4bdf8504086 Mon Sep 17 00:00:00 2001 From: Randy Dunlap <randy.dunlap@oracle.com> Date: Thu, 24 Mar 2011 16:16:02 -0700 Subject: net: fix pch_gbe section mismatch warning Fix section mismatch warning by renaming the pci_driver variable to a recognized (whitelisted) name. WARNING: drivers/net/pch_gbe/pch_gbe.o(.data+0x1f8): Section mismatch in reference from the variable pch_gbe_pcidev to the variable .devinit.rodata:pch_gbe_pcidev_id The variable pch_gbe_pcidev references the variable __devinitconst pch_gbe_pcidev_id If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/pch_gbe/pch_gbe_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c index 8c66e22c3a0a..50986840c99c 100644 --- a/drivers/net/pch_gbe/pch_gbe_main.c +++ b/drivers/net/pch_gbe/pch_gbe_main.c @@ -2441,7 +2441,7 @@ static struct pci_error_handlers pch_gbe_err_handler = { .resume = pch_gbe_io_resume }; -static struct pci_driver pch_gbe_pcidev = { +static struct pci_driver pch_gbe_driver = { .name = KBUILD_MODNAME, .id_table = pch_gbe_pcidev_id, .probe = pch_gbe_probe, @@ -2458,7 +2458,7 @@ static int __init pch_gbe_init_module(void) { int ret; - ret = pci_register_driver(&pch_gbe_pcidev); + ret = pci_register_driver(&pch_gbe_driver); if (copybreak != PCH_GBE_COPYBREAK_DEFAULT) { if (copybreak == 0) { pr_info("copybreak disabled\n"); @@ -2472,7 +2472,7 @@ static int __init pch_gbe_init_module(void) static void __exit pch_gbe_exit_module(void) { - pci_unregister_driver(&pch_gbe_pcidev); + pci_unregister_driver(&pch_gbe_driver); } module_init(pch_gbe_init_module); -- cgit v1.2.3 From 1c833bc3b60744a385ac66cc1bc72fbecd5670ab Mon Sep 17 00:00:00 2001 From: Kjetil Oftedal <oftedal@gmail.com> Date: Thu, 24 Mar 2011 16:34:52 -0700 Subject: sparc32: Fix multiple RTC detections on SUN4D During the preparation for testing the recent changes made to the SUN4D specific code in the kernel by Sam Ravnborg the following was discovered: Since the removal of of_platform_bus_type (commit: eca3930163ba8884060ce9d9ff5ef0d9b7c7b00f ) multiboard SUN4Ds have not been able to boot. The kernel crashes due to a zero-pointer error encountered when registering multiple M48T59 RTCs (There is one on each board). A patch for the was previously submitted, but the problem was not a serious at that time, as it would only generate warnings. Now the kernel will crash and stop executing before the serial console has been started. (Crash output can be viewed by using the -p boot flag) Signed-off-by: Kjetil Oftedal <oftedal@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- arch/sparc/kernel/time_32.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c index 8237dd4dfeb4..4e236391b635 100644 --- a/arch/sparc/kernel/time_32.c +++ b/arch/sparc/kernel/time_32.c @@ -145,6 +145,10 @@ static int __devinit clock_probe(struct platform_device *op) if (!model) return -ENODEV; + /* Only the primary RTC has an address property */ + if (!of_find_property(dp, "address", NULL)) + return -ENODEV; + m48t59_rtc.resource = &op->resource[0]; if (!strcmp(model, "mk48t02")) { /* Map the clock register io area read-only */ -- cgit v1.2.3 From cf55bb2439d2a7080fae6edf84919fd81f891574 Mon Sep 17 00:00:00 2001 From: Roland Dreier <roland@purestorage.com> Date: Thu, 24 Mar 2011 17:13:20 -0700 Subject: RDMA/nes: Fix test of uninitialized netdev Commit 1765a575334f ("net: make dev->master general") introduced a test of an uninitialized netdev. Fix the code so the intended netdev is tested. Signed-off-by: Roland Dreier <roland@purestorage.com> --- drivers/infiniband/hw/nes/nes_cm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index ef3291551bc6..cfa3a2b22232 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -1116,7 +1116,7 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi return rc; } - if (netif_is_bond_slave(netdev)) + if (netif_is_bond_slave(nesvnic->netdev)) netdev = nesvnic->netdev->master; else netdev = nesvnic->netdev; -- cgit v1.2.3 From 436c3b66ec9824a633724ae42de1c416af4f2063 Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@davemloft.net> Date: Thu, 24 Mar 2011 17:42:21 -0700 Subject: ipv4: Invalidate nexthop cache nh_saddr more correctly. Any operation that: 1) Brings up an interface 2) Adds an IP address to an interface 3) Deletes an IP address from an interface can potentially invalidate the nh_saddr value, requiring it to be recomputed. Perform the recomputation lazily using a generation ID. Reported-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net> --- include/net/ip_fib.h | 12 ++++++++++-- include/net/netns/ipv4.h | 1 + net/ipv4/fib_frontend.c | 11 +++++++---- net/ipv4/fib_semantics.c | 32 +++++++++++--------------------- net/ipv4/route.c | 6 ++++-- 5 files changed, 33 insertions(+), 29 deletions(-) diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index a1a858035913..cd92b923a578 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -62,6 +62,7 @@ struct fib_nh { int nh_oif; __be32 nh_gw; __be32 nh_saddr; + int nh_saddr_genid; }; /* @@ -141,12 +142,19 @@ struct fib_result_nl { #endif /* CONFIG_IP_ROUTE_MULTIPATH */ -#define FIB_RES_SADDR(res) (FIB_RES_NH(res).nh_saddr) +extern __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh); + +#define FIB_RES_SADDR(net, res) \ + ((FIB_RES_NH(res).nh_saddr_genid == \ + atomic_read(&(net)->ipv4.dev_addr_genid)) ? \ + FIB_RES_NH(res).nh_saddr : \ + fib_info_update_nh_saddr((net), &FIB_RES_NH(res))) #define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw) #define FIB_RES_DEV(res) (FIB_RES_NH(res).nh_dev) #define FIB_RES_OIF(res) (FIB_RES_NH(res).nh_oif) -#define FIB_RES_PREFSRC(res) ((res).fi->fib_prefsrc ? : FIB_RES_SADDR(res)) +#define FIB_RES_PREFSRC(net, res) ((res).fi->fib_prefsrc ? : \ + FIB_RES_SADDR(net, res)) struct fib_table { struct hlist_node tb_hlist; diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index e2e2ef57eca2..542195d9469e 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -55,6 +55,7 @@ struct netns_ipv4 { int current_rt_cache_rebuild_count; atomic_t rt_genid; + atomic_t dev_addr_genid; #ifdef CONFIG_IP_MROUTE #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 02c3ba61884a..f116ce8f1b46 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -228,7 +228,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif, if (res.type != RTN_LOCAL || !accept_local) goto e_inval; } - *spec_dst = FIB_RES_PREFSRC(res); + *spec_dst = FIB_RES_PREFSRC(net, res); fib_combine_itag(itag, &res); dev_match = false; @@ -258,7 +258,7 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif, ret = 0; if (fib_lookup(net, &fl4, &res) == 0) { if (res.type == RTN_UNICAST) { - *spec_dst = FIB_RES_PREFSRC(res); + *spec_dst = FIB_RES_PREFSRC(net, res); ret = FIB_RES_NH(res).nh_scope >= RT_SCOPE_HOST; } } @@ -960,6 +960,7 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, { struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; struct net_device *dev = ifa->ifa_dev->dev; + struct net *net = dev_net(dev); switch (event) { case NETDEV_UP: @@ -967,12 +968,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, #ifdef CONFIG_IP_ROUTE_MULTIPATH fib_sync_up(dev); #endif - fib_update_nh_saddrs(dev); + atomic_inc(&net->ipv4.dev_addr_genid); rt_cache_flush(dev_net(dev), -1); break; case NETDEV_DOWN: fib_del_ifaddr(ifa, NULL); - fib_update_nh_saddrs(dev); + atomic_inc(&net->ipv4.dev_addr_genid); if (ifa->ifa_dev->ifa_list == NULL) { /* Last address was deleted from this interface. * Disable IP. @@ -990,6 +991,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo { struct net_device *dev = ptr; struct in_device *in_dev = __in_dev_get_rtnl(dev); + struct net *net = dev_net(dev); if (event == NETDEV_UNREGISTER) { fib_disable_ip(dev, 2, -1); @@ -1007,6 +1009,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo #ifdef CONFIG_IP_ROUTE_MULTIPATH fib_sync_up(dev); #endif + atomic_inc(&net->ipv4.dev_addr_genid); rt_cache_flush(dev_net(dev), -1); break; case NETDEV_DOWN: diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 75b9fb5d5d37..2d4bebca671a 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -695,6 +695,16 @@ static void fib_info_hash_move(struct hlist_head *new_info_hash, fib_info_hash_free(old_laddrhash, bytes); } +__be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh) +{ + nh->nh_saddr = inet_select_addr(nh->nh_dev, + nh->nh_gw, + nh->nh_cfg_scope); + nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid); + + return nh->nh_saddr; +} + struct fib_info *fib_create_info(struct fib_config *cfg) { int err; @@ -855,9 +865,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg) change_nexthops(fi) { nexthop_nh->nh_cfg_scope = cfg->fc_scope; - nexthop_nh->nh_saddr = inet_select_addr(nexthop_nh->nh_dev, - nexthop_nh->nh_gw, - nexthop_nh->nh_cfg_scope); + fib_info_update_nh_saddr(net, nexthop_nh); } endfor_nexthops(fi) link_it: @@ -1128,24 +1136,6 @@ out: return; } -void fib_update_nh_saddrs(struct net_device *dev) -{ - struct hlist_head *head; - struct hlist_node *node; - struct fib_nh *nh; - unsigned int hash; - - hash = fib_devindex_hashfn(dev->ifindex); - head = &fib_info_devhash[hash]; - hlist_for_each_entry(nh, node, head, nh_hash) { - if (nh->nh_dev != dev) - continue; - nh->nh_saddr = inet_select_addr(nh->nh_dev, - nh->nh_gw, - nh->nh_cfg_scope); - } -} - #ifdef CONFIG_IP_ROUTE_MULTIPATH /* diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 34921b0d3f8e..4b0c81180804 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1718,7 +1718,7 @@ void ip_rt_get_source(u8 *addr, struct rtable *rt) rcu_read_lock(); if (fib_lookup(dev_net(rt->dst.dev), &fl4, &res) == 0) - src = FIB_RES_PREFSRC(res); + src = FIB_RES_PREFSRC(dev_net(rt->dst.dev), res); else src = inet_select_addr(rt->dst.dev, rt->rt_gateway, RT_SCOPE_UNIVERSE); @@ -2615,7 +2615,7 @@ static struct rtable *ip_route_output_slow(struct net *net, fib_select_default(&res); if (!fl4.saddr) - fl4.saddr = FIB_RES_PREFSRC(res); + fl4.saddr = FIB_RES_PREFSRC(net, res); dev_out = FIB_RES_DEV(res); fl4.flowi4_oif = dev_out->ifindex; @@ -3219,6 +3219,8 @@ static __net_init int rt_genid_init(struct net *net) { get_random_bytes(&net->ipv4.rt_genid, sizeof(net->ipv4.rt_genid)); + get_random_bytes(&net->ipv4.dev_addr_genid, + sizeof(net->ipv4.dev_addr_genid)); return 0; } -- cgit v1.2.3 From b2b755b5f10eb32fbdc73a9907c07006b17f714b Mon Sep 17 00:00:00 2001 From: David Rientjes <rientjes@google.com> Date: Thu, 24 Mar 2011 15:18:15 -0700 Subject: lib, arch: add filter argument to show_mem and fix private implementations Commit ddd588b5dd55 ("oom: suppress nodes that are not allowed from meminfo on oom kill") moved lib/show_mem.o out of lib/lib.a, which resulted in build warnings on all architectures that implement their own versions of show_mem(): lib/lib.a(show_mem.o): In function `show_mem': show_mem.c:(.text+0x1f4): multiple definition of `show_mem' arch/sparc/mm/built-in.o:(.text+0xd70): first defined here The fix is to remove __show_mem() and add its argument to show_mem() in all implementations to prevent this breakage. Architectures that implement their own show_mem() actually don't do anything with the argument yet, but they could be made to filter nodes that aren't allowed in the current context in the future just like the generic implementation. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: James Bottomley <James.Bottomley@hansenpartnership.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- arch/arm/mm/init.c | 2 +- arch/ia64/mm/contig.c | 2 +- arch/ia64/mm/discontig.c | 2 +- arch/parisc/mm/init.c | 2 +- arch/powerpc/xmon/xmon.c | 2 +- arch/sparc/mm/init_32.c | 2 +- arch/tile/mm/pgtable.c | 2 +- arch/unicore32/mm/init.c | 2 +- drivers/tty/sysrq.c | 2 +- drivers/tty/vt/keyboard.c | 2 +- include/linux/mm.h | 5 ++--- lib/show_mem.c | 7 +------ mm/oom_kill.c | 2 +- mm/page_alloc.c | 2 +- 14 files changed, 15 insertions(+), 21 deletions(-) diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index b3b0f0f5053d..e5f6fc428348 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -78,7 +78,7 @@ __tagtable(ATAG_INITRD2, parse_tag_initrd2); */ struct meminfo meminfo; -void show_mem(void) +void show_mem(unsigned int filter) { int free = 0, total = 0, reserved = 0; int shared = 0, cached = 0, slab = 0, i; diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c index 54bf54059811..9a018cde5d84 100644 --- a/arch/ia64/mm/contig.c +++ b/arch/ia64/mm/contig.c @@ -36,7 +36,7 @@ static unsigned long max_gap; * Shows a simple page count of reserved and used pages in the system. * For discontig machines, it does this on a per-pgdat basis. */ -void show_mem(void) +void show_mem(unsigned int filter) { int i, total_reserved = 0; int total_shared = 0, total_cached = 0; diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index 61620323bb60..82ab1bc6afb1 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -614,7 +614,7 @@ void __cpuinit *per_cpu_init(void) * Shows a simple page count of reserved and used pages in the system. * For discontig machines, it does this on a per-pgdat basis. */ -void show_mem(void) +void show_mem(unsigned int filter) { int i, total_reserved = 0; int total_shared = 0, total_cached = 0; diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index f4f4d700833a..b7ed8d7a9b33 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -544,7 +544,7 @@ void __init mem_init(void) unsigned long *empty_zero_page __read_mostly; EXPORT_SYMBOL(empty_zero_page); -void show_mem(void) +void show_mem(unsigned int filter) { int i,free = 0,total = 0,reserved = 0; int shared = 0, cached = 0; diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index d17d04cfb2cd..33794c1d92c3 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -821,7 +821,7 @@ cmds(struct pt_regs *excp) memzcan(); break; case 'i': - show_mem(); + show_mem(0); break; default: termch = cmd; diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index 6d0e02c4fe09..4c31e2b6e71b 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -75,7 +75,7 @@ void __init kmap_init(void) kmap_prot = __pgprot(SRMMU_ET_PTE | SRMMU_PRIV | SRMMU_CACHE); } -void show_mem(void) +void show_mem(unsigned int filter) { printk("Mem-info:\n"); show_free_areas(); diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c index 1a2b36f8866d..de7d8e21e01d 100644 --- a/arch/tile/mm/pgtable.c +++ b/arch/tile/mm/pgtable.c @@ -41,7 +41,7 @@ * The normal show_free_areas() is too verbose on Tile, with dozens * of processors and often four NUMA zones each with high and lowmem. */ -void show_mem(void) +void show_mem(unsigned int filter) { struct zone *zone; diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c index 3dbe3709b69d..1fc02633f700 100644 --- a/arch/unicore32/mm/init.c +++ b/arch/unicore32/mm/init.c @@ -55,7 +55,7 @@ early_param("initrd", early_initrd); */ struct meminfo meminfo; -void show_mem(void) +void show_mem(unsigned int filter) { int free = 0, total = 0, reserved = 0; int shared = 0, cached = 0, slab = 0, i; diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c index 81f13958e751..43db715f1502 100644 --- a/drivers/tty/sysrq.c +++ b/drivers/tty/sysrq.c @@ -306,7 +306,7 @@ static struct sysrq_key_op sysrq_ftrace_dump_op = { static void sysrq_handle_showmem(int key) { - show_mem(); + show_mem(0); } static struct sysrq_key_op sysrq_showmem_op = { .handler = sysrq_handle_showmem, diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index 6dd3c68c13ad..d6b342b5b423 100644 --- a/drivers/tty/vt/keyboard.c +++ b/drivers/tty/vt/keyboard.c @@ -600,7 +600,7 @@ static void fn_scroll_back(struct vc_data *vc) static void fn_show_mem(struct vc_data *vc) { - show_mem(); + show_mem(0); } static void fn_show_state(struct vc_data *vc) diff --git a/include/linux/mm.h b/include/linux/mm.h index f9535b2c9558..7606d7db96c9 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -861,7 +861,7 @@ extern void pagefault_out_of_memory(void); #define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) /* - * Flags passed to __show_mem() and __show_free_areas() to suppress output in + * Flags passed to show_mem() and __show_free_areas() to suppress output in * various contexts. */ #define SHOW_MEM_FILTER_NODES (0x0001u) /* filter disallowed nodes */ @@ -1360,8 +1360,7 @@ extern void setup_per_zone_wmarks(void); extern void calculate_zone_inactive_ratio(struct zone *zone); extern void mem_init(void); extern void __init mmap_init(void); -extern void show_mem(void); -extern void __show_mem(unsigned int flags); +extern void show_mem(unsigned int flags); extern void si_meminfo(struct sysinfo * val); extern void si_meminfo_node(struct sysinfo *val, int nid); extern int after_bootmem; diff --git a/lib/show_mem.c b/lib/show_mem.c index d8d602b58c31..90cbe4bb5960 100644 --- a/lib/show_mem.c +++ b/lib/show_mem.c @@ -9,7 +9,7 @@ #include <linux/nmi.h> #include <linux/quicklist.h> -void __show_mem(unsigned int filter) +void show_mem(unsigned int filter) { pg_data_t *pgdat; unsigned long total = 0, reserved = 0, shared = 0, @@ -61,8 +61,3 @@ void __show_mem(unsigned int filter) quicklist_total_size()); #endif } - -void show_mem(void) -{ - __show_mem(0); -} diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 62a5cec08a17..6a819d1b2c7d 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -406,7 +406,7 @@ static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order, task_unlock(current); dump_stack(); mem_cgroup_print_oom_info(mem, p); - __show_mem(SHOW_MEM_FILTER_NODES); + show_mem(SHOW_MEM_FILTER_NODES); if (sysctl_oom_dump_tasks) dump_tasks(mem, nodemask); } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8e5726ab0d85..d6e7ba7373be 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2195,7 +2195,7 @@ nopage: current->comm, order, gfp_mask); dump_stack(); if (!should_suppress_show_mem()) - __show_mem(filter); + show_mem(filter); } return page; got_pg: -- cgit v1.2.3 From 37e826c513883099c298317bad1b3b677b2905fb Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@davemloft.net> Date: Thu, 24 Mar 2011 18:06:47 -0700 Subject: ipv4: Fix nexthop caching wrt. scoping. Move the scope value out of the fib alias entries and into fib_info, so that we always use the correct scope when recomputing the nexthop cached source address. Reported-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net> --- include/net/ip_fib.h | 6 +++--- net/ipv4/fib_lookup.h | 3 +-- net/ipv4/fib_semantics.c | 15 ++++++++------- net/ipv4/fib_trie.c | 12 ++++-------- 4 files changed, 16 insertions(+), 20 deletions(-) diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index cd92b923a578..e5d66ec88cf6 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -51,7 +51,6 @@ struct fib_nh { struct fib_info *nh_parent; unsigned nh_flags; unsigned char nh_scope; - unsigned char nh_cfg_scope; #ifdef CONFIG_IP_ROUTE_MULTIPATH int nh_weight; int nh_power; @@ -75,9 +74,10 @@ struct fib_info { struct net *fib_net; int fib_treeref; atomic_t fib_clntref; - int fib_dead; unsigned fib_flags; - int fib_protocol; + unsigned char fib_dead; + unsigned char fib_protocol; + unsigned char fib_scope; __be32 fib_prefsrc; u32 fib_priority; u32 *fib_metrics; diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h index 4ec323875a02..af0f14aba169 100644 --- a/net/ipv4/fib_lookup.h +++ b/net/ipv4/fib_lookup.h @@ -10,7 +10,6 @@ struct fib_alias { struct fib_info *fa_info; u8 fa_tos; u8 fa_type; - u8 fa_scope; u8 fa_state; struct rcu_head rcu; }; @@ -29,7 +28,7 @@ extern void fib_release_info(struct fib_info *); extern struct fib_info *fib_create_info(struct fib_config *cfg); extern int fib_nh_match(struct fib_config *cfg, struct fib_info *fi); extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, - u32 tb_id, u8 type, u8 scope, __be32 dst, + u32 tb_id, u8 type, __be32 dst, int dst_len, u8 tos, struct fib_info *fi, unsigned int); extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 2d4bebca671a..641a5a2a9f9c 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -222,7 +222,7 @@ static inline unsigned int fib_info_hashfn(const struct fib_info *fi) unsigned int mask = (fib_info_hash_size - 1); unsigned int val = fi->fib_nhs; - val ^= fi->fib_protocol; + val ^= (fi->fib_protocol << 8) | fi->fib_scope; val ^= (__force u32)fi->fib_prefsrc; val ^= fi->fib_priority; for_nexthops(fi) { @@ -248,6 +248,7 @@ static struct fib_info *fib_find_info(const struct fib_info *nfi) if (fi->fib_nhs != nfi->fib_nhs) continue; if (nfi->fib_protocol == fi->fib_protocol && + nfi->fib_scope == fi->fib_scope && nfi->fib_prefsrc == fi->fib_prefsrc && nfi->fib_priority == fi->fib_priority && memcmp(nfi->fib_metrics, fi->fib_metrics, @@ -328,7 +329,7 @@ void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, goto errout; err = fib_dump_info(skb, info->pid, seq, event, tb_id, - fa->fa_type, fa->fa_scope, key, dst_len, + fa->fa_type, key, dst_len, fa->fa_tos, fa->fa_info, nlm_flags); if (err < 0) { /* -EMSGSIZE implies BUG in fib_nlmsg_size() */ @@ -699,7 +700,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh) { nh->nh_saddr = inet_select_addr(nh->nh_dev, nh->nh_gw, - nh->nh_cfg_scope); + nh->nh_parent->fib_scope); nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid); return nh->nh_saddr; @@ -763,6 +764,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg) fi->fib_net = hold_net(net); fi->fib_protocol = cfg->fc_protocol; + fi->fib_scope = cfg->fc_scope; fi->fib_flags = cfg->fc_flags; fi->fib_priority = cfg->fc_priority; fi->fib_prefsrc = cfg->fc_prefsrc; @@ -864,7 +866,6 @@ struct fib_info *fib_create_info(struct fib_config *cfg) } change_nexthops(fi) { - nexthop_nh->nh_cfg_scope = cfg->fc_scope; fib_info_update_nh_saddr(net, nexthop_nh); } endfor_nexthops(fi) @@ -914,7 +915,7 @@ failure: } int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, - u32 tb_id, u8 type, u8 scope, __be32 dst, int dst_len, u8 tos, + u32 tb_id, u8 type, __be32 dst, int dst_len, u8 tos, struct fib_info *fi, unsigned int flags) { struct nlmsghdr *nlh; @@ -936,7 +937,7 @@ int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, NLA_PUT_U32(skb, RTA_TABLE, tb_id); rtm->rtm_type = type; rtm->rtm_flags = fi->fib_flags; - rtm->rtm_scope = scope; + rtm->rtm_scope = fi->fib_scope; rtm->rtm_protocol = fi->fib_protocol; if (rtm->rtm_dst_len) @@ -1092,7 +1093,7 @@ void fib_select_default(struct fib_result *res) list_for_each_entry_rcu(fa, fa_head, fa_list) { struct fib_info *next_fi = fa->fa_info; - if (fa->fa_scope != res->scope || + if (next_fi->fib_scope != res->scope || fa->fa_type != RTN_UNICAST) continue; diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index ac87a49ad50b..90a3ff605591 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1245,7 +1245,6 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg) if (fa->fa_info->fib_priority != fi->fib_priority) break; if (fa->fa_type == cfg->fc_type && - fa->fa_scope == cfg->fc_scope && fa->fa_info == fi) { fa_match = fa; break; @@ -1271,7 +1270,6 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg) new_fa->fa_tos = fa->fa_tos; new_fa->fa_info = fi; new_fa->fa_type = cfg->fc_type; - new_fa->fa_scope = cfg->fc_scope; state = fa->fa_state; new_fa->fa_state = state & ~FA_S_ACCESSED; @@ -1308,7 +1306,6 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg) new_fa->fa_info = fi; new_fa->fa_tos = tos; new_fa->fa_type = cfg->fc_type; - new_fa->fa_scope = cfg->fc_scope; new_fa->fa_state = 0; /* * Insert new entry to the list. @@ -1362,7 +1359,7 @@ static int check_leaf(struct fib_table *tb, struct trie *t, struct leaf *l, if (fa->fa_tos && fa->fa_tos != flp->flowi4_tos) continue; - if (fa->fa_scope < flp->flowi4_scope) + if (fa->fa_info->fib_scope < flp->flowi4_scope) continue; fib_alias_accessed(fa); err = fib_props[fa->fa_type].error; @@ -1388,7 +1385,7 @@ static int check_leaf(struct fib_table *tb, struct trie *t, struct leaf *l, res->prefixlen = plen; res->nh_sel = nhsel; res->type = fa->fa_type; - res->scope = fa->fa_scope; + res->scope = fa->fa_info->fib_scope; res->fi = fi; res->table = tb; res->fa_head = &li->falh; @@ -1664,7 +1661,7 @@ int fib_table_delete(struct fib_table *tb, struct fib_config *cfg) if ((!cfg->fc_type || fa->fa_type == cfg->fc_type) && (cfg->fc_scope == RT_SCOPE_NOWHERE || - fa->fa_scope == cfg->fc_scope) && + fa->fa_info->fib_scope == cfg->fc_scope) && (!cfg->fc_prefsrc || fi->fib_prefsrc == cfg->fc_prefsrc) && (!cfg->fc_protocol || @@ -1863,7 +1860,6 @@ static int fn_trie_dump_fa(t_key key, int plen, struct list_head *fah, RTM_NEWROUTE, tb->tb_id, fa->fa_type, - fa->fa_scope, xkey, plen, fa->fa_tos, @@ -2384,7 +2380,7 @@ static int fib_trie_seq_show(struct seq_file *seq, void *v) seq_indent(seq, iter->depth+1); seq_printf(seq, " /%d %s %s", li->plen, rtn_scope(buf1, sizeof(buf1), - fa->fa_scope), + fa->fa_info->fib_scope), rtn_type(buf2, sizeof(buf2), fa->fa_type)); if (fa->fa_tos) -- cgit v1.2.3 From 250df6ed274d767da844a5d9f05720b804240197 Mon Sep 17 00:00:00 2001 From: Dave Chinner <dchinner@redhat.com> Date: Tue, 22 Mar 2011 22:23:36 +1100 Subject: fs: protect inode->i_state with inode->i_lock Protect inode state transitions and validity checks with the inode->i_lock. This enables us to make inode state transitions independently of the inode_lock and is the first step to peeling away the inode_lock from the code. This requires that __iget() is done atomically with i_state checks during list traversals so that we don't race with another thread marking the inode I_FREEING between the state check and grabbing the reference. Also remove the unlock_new_inode() memory barrier optimisation required to avoid taking the inode_lock when clearing I_NEW. Simplify the code by simply taking the inode->i_lock around the state change and wakeup. Because the wakeup is no longer tricky, remove the wake_up_inode() function and open code the wakeup where necessary. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/block_dev.c | 2 + fs/buffer.c | 2 +- fs/drop_caches.c | 9 ++- fs/fs-writeback.c | 44 ++++++++++---- fs/inode.c | 150 ++++++++++++++++++++++++++++++++--------------- fs/notify/inode_mark.c | 21 +++++-- fs/quota/dquot.c | 13 ++-- include/linux/fs.h | 2 +- include/linux/quotaops.h | 2 +- mm/filemap.c | 2 + mm/rmap.c | 1 + 11 files changed, 174 insertions(+), 74 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index 889287019599..bc39b18cf3d0 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -56,9 +56,11 @@ static void bdev_inode_switch_bdi(struct inode *inode, struct backing_dev_info *dst) { spin_lock(&inode_lock); + spin_lock(&inode->i_lock); inode->i_data.backing_dev_info = dst; if (inode->i_state & I_DIRTY) list_move(&inode->i_wb_list, &dst->wb.b_dirty); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); } diff --git a/fs/buffer.c b/fs/buffer.c index 2219a76e2caf..da666f3148f9 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1144,7 +1144,7 @@ __getblk_slow(struct block_device *bdev, sector_t block, int size) * inode list. * * mark_buffer_dirty() is atomic. It takes bh->b_page->mapping->private_lock, - * mapping->tree_lock and the global inode_lock. + * mapping->tree_lock and mapping->host->i_lock. */ void mark_buffer_dirty(struct buffer_head *bh) { diff --git a/fs/drop_caches.c b/fs/drop_caches.c index 816f88e6b9ce..6c6f73ba0868 100644 --- a/fs/drop_caches.c +++ b/fs/drop_caches.c @@ -18,11 +18,14 @@ static void drop_pagecache_sb(struct super_block *sb, void *unused) spin_lock(&inode_lock); list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { - if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) - continue; - if (inode->i_mapping->nrpages == 0) + spin_lock(&inode->i_lock); + if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) || + (inode->i_mapping->nrpages == 0)) { + spin_unlock(&inode->i_lock); continue; + } __iget(inode); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); invalidate_mapping_pages(inode->i_mapping, 0, -1); iput(toput_inode); diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 59c6e4956786..efd1ebe879cc 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -306,10 +306,12 @@ static void inode_wait_for_writeback(struct inode *inode) wait_queue_head_t *wqh; wqh = bit_waitqueue(&inode->i_state, __I_SYNC); - while (inode->i_state & I_SYNC) { + while (inode->i_state & I_SYNC) { + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); __wait_on_bit(wqh, &wq, inode_wait, TASK_UNINTERRUPTIBLE); spin_lock(&inode_lock); + spin_lock(&inode->i_lock); } } @@ -333,6 +335,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) unsigned dirty; int ret; + spin_lock(&inode->i_lock); if (!atomic_read(&inode->i_count)) WARN_ON(!(inode->i_state & (I_WILL_FREE|I_FREEING))); else @@ -348,6 +351,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) * completed a full scan of b_io. */ if (wbc->sync_mode != WB_SYNC_ALL) { + spin_unlock(&inode->i_lock); requeue_io(inode); return 0; } @@ -363,6 +367,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) /* Set I_SYNC, reset I_DIRTY_PAGES */ inode->i_state |= I_SYNC; inode->i_state &= ~I_DIRTY_PAGES; + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); ret = do_writepages(mapping, wbc); @@ -384,8 +389,10 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) * write_inode() */ spin_lock(&inode_lock); + spin_lock(&inode->i_lock); dirty = inode->i_state & I_DIRTY; inode->i_state &= ~(I_DIRTY_SYNC | I_DIRTY_DATASYNC); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); /* Don't write the inode if only I_DIRTY_PAGES was set */ if (dirty & (I_DIRTY_SYNC | I_DIRTY_DATASYNC)) { @@ -395,6 +402,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) } spin_lock(&inode_lock); + spin_lock(&inode->i_lock); inode->i_state &= ~I_SYNC; if (!(inode->i_state & I_FREEING)) { if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) { @@ -436,6 +444,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) } } inode_sync_complete(inode); + spin_unlock(&inode->i_lock); return ret; } @@ -506,7 +515,9 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb, * kind does not need peridic writeout yet, and for the latter * kind writeout is handled by the freer. */ + spin_lock(&inode->i_lock); if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) { + spin_unlock(&inode->i_lock); requeue_io(inode); continue; } @@ -515,10 +526,14 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb, * Was this inode dirtied after sync_sb_inodes was called? * This keeps sync from extra jobs and livelock. */ - if (inode_dirtied_after(inode, wbc->wb_start)) + if (inode_dirtied_after(inode, wbc->wb_start)) { + spin_unlock(&inode->i_lock); return 1; + } __iget(inode); + spin_unlock(&inode->i_lock); + pages_skipped = wbc->pages_skipped; writeback_single_inode(inode, wbc); if (wbc->pages_skipped != pages_skipped) { @@ -724,7 +739,9 @@ static long wb_writeback(struct bdi_writeback *wb, if (!list_empty(&wb->b_more_io)) { inode = wb_inode(wb->b_more_io.prev); trace_wbc_writeback_wait(&wbc, wb->bdi); + spin_lock(&inode->i_lock); inode_wait_for_writeback(inode); + spin_unlock(&inode->i_lock); } spin_unlock(&inode_lock); } @@ -1017,6 +1034,7 @@ void __mark_inode_dirty(struct inode *inode, int flags) block_dump___mark_inode_dirty(inode); spin_lock(&inode_lock); + spin_lock(&inode->i_lock); if ((inode->i_state & flags) != flags) { const int was_dirty = inode->i_state & I_DIRTY; @@ -1028,7 +1046,7 @@ void __mark_inode_dirty(struct inode *inode, int flags) * superblock list, based upon its state. */ if (inode->i_state & I_SYNC) - goto out; + goto out_unlock_inode; /* * Only add valid (hashed) inodes to the superblock's @@ -1036,11 +1054,12 @@ void __mark_inode_dirty(struct inode *inode, int flags) */ if (!S_ISBLK(inode->i_mode)) { if (inode_unhashed(inode)) - goto out; + goto out_unlock_inode; } if (inode->i_state & I_FREEING) - goto out; + goto out_unlock_inode; + spin_unlock(&inode->i_lock); /* * If the inode was already on b_dirty/b_io/b_more_io, don't * reposition it (that would break b_dirty time-ordering). @@ -1065,7 +1084,10 @@ void __mark_inode_dirty(struct inode *inode, int flags) inode->dirtied_when = jiffies; list_move(&inode->i_wb_list, &bdi->wb.b_dirty); } + goto out; } +out_unlock_inode: + spin_unlock(&inode->i_lock); out: spin_unlock(&inode_lock); @@ -1111,14 +1133,16 @@ static void wait_sb_inodes(struct super_block *sb) * we still have to wait for that writeout. */ list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { - struct address_space *mapping; + struct address_space *mapping = inode->i_mapping; - if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) - continue; - mapping = inode->i_mapping; - if (mapping->nrpages == 0) + spin_lock(&inode->i_lock); + if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) || + (mapping->nrpages == 0)) { + spin_unlock(&inode->i_lock); continue; + } __iget(inode); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); /* * We hold a reference to 'inode' so it couldn't have diff --git a/fs/inode.c b/fs/inode.c index 0b3da4a77704..14b12c4ee026 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -27,6 +27,17 @@ #include <linux/ima.h> #include <linux/cred.h> +/* + * inode locking rules. + * + * inode->i_lock protects: + * inode->i_state, inode->i_hash, __iget() + * + * Lock ordering: + * inode_lock + * inode->i_lock + */ + /* * This is needed for the following functions: * - inode_has_buffers @@ -137,15 +148,6 @@ int proc_nr_inodes(ctl_table *table, int write, } #endif -static void wake_up_inode(struct inode *inode) -{ - /* - * Prevent speculative execution through spin_unlock(&inode_lock); - */ - smp_mb(); - wake_up_bit(&inode->i_state, __I_NEW); -} - /** * inode_init_always - perform inode structure intialisation * @sb: superblock inode belongs to @@ -336,7 +338,7 @@ static void init_once(void *foo) } /* - * inode_lock must be held + * inode->i_lock must be held */ void __iget(struct inode *inode) { @@ -413,7 +415,9 @@ void __insert_inode_hash(struct inode *inode, unsigned long hashval) struct hlist_head *b = inode_hashtable + hash(inode->i_sb, hashval); spin_lock(&inode_lock); + spin_lock(&inode->i_lock); hlist_add_head(&inode->i_hash, b); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); } EXPORT_SYMBOL(__insert_inode_hash); @@ -438,7 +442,9 @@ static void __remove_inode_hash(struct inode *inode) void remove_inode_hash(struct inode *inode) { spin_lock(&inode_lock); + spin_lock(&inode->i_lock); hlist_del_init(&inode->i_hash); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); } EXPORT_SYMBOL(remove_inode_hash); @@ -495,7 +501,9 @@ static void dispose_list(struct list_head *head) __inode_sb_list_del(inode); spin_unlock(&inode_lock); - wake_up_inode(inode); + spin_lock(&inode->i_lock); + wake_up_bit(&inode->i_state, __I_NEW); + spin_unlock(&inode->i_lock); destroy_inode(inode); } } @@ -518,10 +526,17 @@ void evict_inodes(struct super_block *sb) list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) { if (atomic_read(&inode->i_count)) continue; - if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) + + spin_lock(&inode->i_lock); + if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) { + spin_unlock(&inode->i_lock); continue; + } inode->i_state |= I_FREEING; + if (!(inode->i_state & (I_DIRTY | I_SYNC))) + inodes_stat.nr_unused--; + spin_unlock(&inode->i_lock); /* * Move the inode off the IO lists and LRU once I_FREEING is @@ -529,8 +544,6 @@ void evict_inodes(struct super_block *sb) */ list_move(&inode->i_lru, &dispose); list_del_init(&inode->i_wb_list); - if (!(inode->i_state & (I_DIRTY | I_SYNC))) - inodes_stat.nr_unused--; } spin_unlock(&inode_lock); @@ -563,18 +576,26 @@ int invalidate_inodes(struct super_block *sb, bool kill_dirty) spin_lock(&inode_lock); list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) { - if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) + spin_lock(&inode->i_lock); + if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) { + spin_unlock(&inode->i_lock); continue; + } if (inode->i_state & I_DIRTY && !kill_dirty) { + spin_unlock(&inode->i_lock); busy = 1; continue; } if (atomic_read(&inode->i_count)) { + spin_unlock(&inode->i_lock); busy = 1; continue; } inode->i_state |= I_FREEING; + if (!(inode->i_state & (I_DIRTY | I_SYNC))) + inodes_stat.nr_unused--; + spin_unlock(&inode->i_lock); /* * Move the inode off the IO lists and LRU once I_FREEING is @@ -582,8 +603,6 @@ int invalidate_inodes(struct super_block *sb, bool kill_dirty) */ list_move(&inode->i_lru, &dispose); list_del_init(&inode->i_wb_list); - if (!(inode->i_state & (I_DIRTY | I_SYNC))) - inodes_stat.nr_unused--; } spin_unlock(&inode_lock); @@ -641,8 +660,10 @@ static void prune_icache(int nr_to_scan) * Referenced or dirty inodes are still in use. Give them * another pass through the LRU as we canot reclaim them now. */ + spin_lock(&inode->i_lock); if (atomic_read(&inode->i_count) || (inode->i_state & ~I_REFERENCED)) { + spin_unlock(&inode->i_lock); list_del_init(&inode->i_lru); inodes_stat.nr_unused--; continue; @@ -650,12 +671,14 @@ static void prune_icache(int nr_to_scan) /* recently referenced inodes get one more pass */ if (inode->i_state & I_REFERENCED) { - list_move(&inode->i_lru, &inode_lru); inode->i_state &= ~I_REFERENCED; + spin_unlock(&inode->i_lock); + list_move(&inode->i_lru, &inode_lru); continue; } if (inode_has_buffers(inode) || inode->i_data.nrpages) { __iget(inode); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); if (remove_inode_buffers(inode)) reap += invalidate_mapping_pages(&inode->i_data, @@ -666,11 +689,15 @@ static void prune_icache(int nr_to_scan) if (inode != list_entry(inode_lru.next, struct inode, i_lru)) continue; /* wrong inode or list_empty */ - if (!can_unuse(inode)) + spin_lock(&inode->i_lock); + if (!can_unuse(inode)) { + spin_unlock(&inode->i_lock); continue; + } } WARN_ON(inode->i_state & I_NEW); inode->i_state |= I_FREEING; + spin_unlock(&inode->i_lock); /* * Move the inode off the IO lists and LRU once I_FREEING is @@ -737,11 +764,13 @@ repeat: continue; if (!test(inode, data)) continue; + spin_lock(&inode->i_lock); if (inode->i_state & (I_FREEING|I_WILL_FREE)) { __wait_on_freeing_inode(inode); goto repeat; } __iget(inode); + spin_unlock(&inode->i_lock); return inode; } return NULL; @@ -763,11 +792,13 @@ repeat: continue; if (inode->i_sb != sb) continue; + spin_lock(&inode->i_lock); if (inode->i_state & (I_FREEING|I_WILL_FREE)) { __wait_on_freeing_inode(inode); goto repeat; } __iget(inode); + spin_unlock(&inode->i_lock); return inode; } return NULL; @@ -832,14 +863,23 @@ struct inode *new_inode(struct super_block *sb) inode = alloc_inode(sb); if (inode) { spin_lock(&inode_lock); - __inode_sb_list_add(inode); + spin_lock(&inode->i_lock); inode->i_state = 0; + spin_unlock(&inode->i_lock); + __inode_sb_list_add(inode); spin_unlock(&inode_lock); } return inode; } EXPORT_SYMBOL(new_inode); +/** + * unlock_new_inode - clear the I_NEW state and wake up any waiters + * @inode: new inode to unlock + * + * Called when the inode is fully initialised to clear the new state of the + * inode and wake up anyone waiting for the inode to finish initialisation. + */ void unlock_new_inode(struct inode *inode) { #ifdef CONFIG_DEBUG_LOCK_ALLOC @@ -859,19 +899,11 @@ void unlock_new_inode(struct inode *inode) } } #endif - /* - * This is special! We do not need the spinlock when clearing I_NEW, - * because we're guaranteed that nobody else tries to do anything about - * the state of the inode when it is locked, as we just created it (so - * there can be no old holders that haven't tested I_NEW). - * However we must emit the memory barrier so that other CPUs reliably - * see the clearing of I_NEW after the other inode initialisation has - * completed. - */ - smp_mb(); + spin_lock(&inode->i_lock); WARN_ON(!(inode->i_state & I_NEW)); inode->i_state &= ~I_NEW; - wake_up_inode(inode); + wake_up_bit(&inode->i_state, __I_NEW); + spin_unlock(&inode->i_lock); } EXPORT_SYMBOL(unlock_new_inode); @@ -900,9 +932,11 @@ static struct inode *get_new_inode(struct super_block *sb, if (set(inode, data)) goto set_failed; + spin_lock(&inode->i_lock); + inode->i_state = I_NEW; hlist_add_head(&inode->i_hash, head); + spin_unlock(&inode->i_lock); __inode_sb_list_add(inode); - inode->i_state = I_NEW; spin_unlock(&inode_lock); /* Return the locked inode with I_NEW set, the @@ -947,9 +981,11 @@ static struct inode *get_new_inode_fast(struct super_block *sb, old = find_inode_fast(sb, head, ino); if (!old) { inode->i_ino = ino; + spin_lock(&inode->i_lock); + inode->i_state = I_NEW; hlist_add_head(&inode->i_hash, head); + spin_unlock(&inode->i_lock); __inode_sb_list_add(inode); - inode->i_state = I_NEW; spin_unlock(&inode_lock); /* Return the locked inode with I_NEW set, the @@ -1034,15 +1070,19 @@ EXPORT_SYMBOL(iunique); struct inode *igrab(struct inode *inode) { spin_lock(&inode_lock); - if (!(inode->i_state & (I_FREEING|I_WILL_FREE))) + spin_lock(&inode->i_lock); + if (!(inode->i_state & (I_FREEING|I_WILL_FREE))) { __iget(inode); - else + spin_unlock(&inode->i_lock); + } else { + spin_unlock(&inode->i_lock); /* * Handle the case where s_op->clear_inode is not been * called yet, and somebody is calling igrab * while the inode is getting freed. */ inode = NULL; + } spin_unlock(&inode_lock); return inode; } @@ -1271,7 +1311,6 @@ int insert_inode_locked(struct inode *inode) ino_t ino = inode->i_ino; struct hlist_head *head = inode_hashtable + hash(sb, ino); - inode->i_state |= I_NEW; while (1) { struct hlist_node *node; struct inode *old = NULL; @@ -1281,16 +1320,23 @@ int insert_inode_locked(struct inode *inode) continue; if (old->i_sb != sb) continue; - if (old->i_state & (I_FREEING|I_WILL_FREE)) + spin_lock(&old->i_lock); + if (old->i_state & (I_FREEING|I_WILL_FREE)) { + spin_unlock(&old->i_lock); continue; + } break; } if (likely(!node)) { + spin_lock(&inode->i_lock); + inode->i_state |= I_NEW; hlist_add_head(&inode->i_hash, head); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); return 0; } __iget(old); + spin_unlock(&old->i_lock); spin_unlock(&inode_lock); wait_on_inode(old); if (unlikely(!inode_unhashed(old))) { @@ -1308,8 +1354,6 @@ int insert_inode_locked4(struct inode *inode, unsigned long hashval, struct super_block *sb = inode->i_sb; struct hlist_head *head = inode_hashtable + hash(sb, hashval); - inode->i_state |= I_NEW; - while (1) { struct hlist_node *node; struct inode *old = NULL; @@ -1320,16 +1364,23 @@ int insert_inode_locked4(struct inode *inode, unsigned long hashval, continue; if (!test(old, data)) continue; - if (old->i_state & (I_FREEING|I_WILL_FREE)) + spin_lock(&old->i_lock); + if (old->i_state & (I_FREEING|I_WILL_FREE)) { + spin_unlock(&old->i_lock); continue; + } break; } if (likely(!node)) { + spin_lock(&inode->i_lock); + inode->i_state |= I_NEW; hlist_add_head(&inode->i_hash, head); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); return 0; } __iget(old); + spin_unlock(&old->i_lock); spin_unlock(&inode_lock); wait_on_inode(old); if (unlikely(!inode_unhashed(old))) { @@ -1375,6 +1426,9 @@ static void iput_final(struct inode *inode) const struct super_operations *op = inode->i_sb->s_op; int drop; + spin_lock(&inode->i_lock); + WARN_ON(inode->i_state & I_NEW); + if (op && op->drop_inode) drop = op->drop_inode(inode); else @@ -1386,21 +1440,23 @@ static void iput_final(struct inode *inode) if (!(inode->i_state & (I_DIRTY|I_SYNC))) { inode_lru_list_add(inode); } + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); return; } - WARN_ON(inode->i_state & I_NEW); inode->i_state |= I_WILL_FREE; + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); write_inode_now(inode, 1); spin_lock(&inode_lock); + spin_lock(&inode->i_lock); WARN_ON(inode->i_state & I_NEW); inode->i_state &= ~I_WILL_FREE; __remove_inode_hash(inode); } - WARN_ON(inode->i_state & I_NEW); inode->i_state |= I_FREEING; + spin_unlock(&inode->i_lock); /* * Move the inode off the IO lists and LRU once I_FREEING is @@ -1413,8 +1469,10 @@ static void iput_final(struct inode *inode) spin_unlock(&inode_lock); evict(inode); remove_inode_hash(inode); - wake_up_inode(inode); + spin_lock(&inode->i_lock); + wake_up_bit(&inode->i_state, __I_NEW); BUG_ON(inode->i_state != (I_FREEING | I_CLEAR)); + spin_unlock(&inode->i_lock); destroy_inode(inode); } @@ -1611,9 +1669,8 @@ EXPORT_SYMBOL(inode_wait); * to recheck inode state. * * It doesn't matter if I_NEW is not set initially, a call to - * wake_up_inode() after removing from the hash list will DTRT. - * - * This is called with inode_lock held. + * wake_up_bit(&inode->i_state, __I_NEW) after removing from the hash list + * will DTRT. */ static void __wait_on_freeing_inode(struct inode *inode) { @@ -1621,6 +1678,7 @@ static void __wait_on_freeing_inode(struct inode *inode) DEFINE_WAIT_BIT(wait, &inode->i_state, __I_NEW); wq = bit_waitqueue(&inode->i_state, __I_NEW); prepare_to_wait(wq, &wait.wait, TASK_UNINTERRUPTIBLE); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); schedule(); finish_wait(wq, &wait.wait); diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c index 4c29fcf557d1..4dd53fb44124 100644 --- a/fs/notify/inode_mark.c +++ b/fs/notify/inode_mark.c @@ -254,8 +254,11 @@ void fsnotify_unmount_inodes(struct list_head *list) * I_WILL_FREE, or I_NEW which is fine because by that point * the inode cannot have any associated watches. */ - if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) + spin_lock(&inode->i_lock); + if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) { + spin_unlock(&inode->i_lock); continue; + } /* * If i_count is zero, the inode cannot have any watches and @@ -263,8 +266,10 @@ void fsnotify_unmount_inodes(struct list_head *list) * evict all inodes with zero i_count from icache which is * unnecessarily violent and may in fact be illegal to do. */ - if (!atomic_read(&inode->i_count)) + if (!atomic_read(&inode->i_count)) { + spin_unlock(&inode->i_lock); continue; + } need_iput_tmp = need_iput; need_iput = NULL; @@ -274,13 +279,17 @@ void fsnotify_unmount_inodes(struct list_head *list) __iget(inode); else need_iput_tmp = NULL; + spin_unlock(&inode->i_lock); /* In case the dropping of a reference would nuke next_i. */ if ((&next_i->i_sb_list != list) && - atomic_read(&next_i->i_count) && - !(next_i->i_state & (I_FREEING | I_WILL_FREE))) { - __iget(next_i); - need_iput = next_i; + atomic_read(&next_i->i_count)) { + spin_lock(&next_i->i_lock); + if (!(next_i->i_state & (I_FREEING | I_WILL_FREE))) { + __iget(next_i); + need_iput = next_i; + } + spin_unlock(&next_i->i_lock); } /* diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index a2a622e079f0..a1470fda366c 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -902,18 +902,19 @@ static void add_dquot_ref(struct super_block *sb, int type) spin_lock(&inode_lock); list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { - if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) + spin_lock(&inode->i_lock); + if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) || + !atomic_read(&inode->i_writecount) || + !dqinit_needed(inode, type)) { + spin_unlock(&inode->i_lock); continue; + } #ifdef CONFIG_QUOTA_DEBUG if (unlikely(inode_get_rsv_space(inode) > 0)) reserved = 1; #endif - if (!atomic_read(&inode->i_writecount)) - continue; - if (!dqinit_needed(inode, type)) - continue; - __iget(inode); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); iput(old_inode); diff --git a/include/linux/fs.h b/include/linux/fs.h index 4dda076c24a1..ed6fdcc1484c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1647,7 +1647,7 @@ struct super_operations { }; /* - * Inode state bits. Protected by inode_lock. + * Inode state bits. Protected by inode->i_lock * * Three bits determine the dirty state of the inode, I_DIRTY_SYNC, * I_DIRTY_DATASYNC and I_DIRTY_PAGES. diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h index eb354f6f26b3..26f9e3612e0f 100644 --- a/include/linux/quotaops.h +++ b/include/linux/quotaops.h @@ -277,7 +277,7 @@ static inline int dquot_alloc_space(struct inode *inode, qsize_t nr) /* * Mark inode fully dirty. Since we are allocating blocks, inode * would become fully dirty soon anyway and it reportedly - * reduces inode_lock contention. + * reduces lock contention. */ mark_inode_dirty(inode); } diff --git a/mm/filemap.c b/mm/filemap.c index f807afda86f2..499e9aa91450 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -99,7 +99,9 @@ * ->private_lock (page_remove_rmap->set_page_dirty) * ->tree_lock (page_remove_rmap->set_page_dirty) * ->inode_lock (page_remove_rmap->set_page_dirty) + * ->inode->i_lock (page_remove_rmap->set_page_dirty) * ->inode_lock (zap_pte_range->set_page_dirty) + * ->inode->i_lock (zap_pte_range->set_page_dirty) * ->private_lock (zap_pte_range->__set_page_dirty_buffers) * * (code doesn't rely on that order, so you could switch it around) diff --git a/mm/rmap.c b/mm/rmap.c index 4a8e99a0fb97..7dada0456448 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -32,6 +32,7 @@ * mmlist_lock (in mmput, drain_mmlist and others) * mapping->private_lock (in __set_page_dirty_buffers) * inode_lock (in set_page_dirty's __mark_inode_dirty) + * inode->i_lock (in set_page_dirty's __mark_inode_dirty) * sb_lock (within inode_lock in fs/fs-writeback.c) * mapping->tree_lock (widely used, in set_page_dirty, * in arch-dependent flush_dcache_mmap_lock, -- cgit v1.2.3 From b2b2af8e614b4dcd8aca1369d82ce5ad0461a7b1 Mon Sep 17 00:00:00 2001 From: Dave Chinner <dchinner@redhat.com> Date: Tue, 22 Mar 2011 22:23:37 +1100 Subject: fs: factor inode disposal We have a couple of places that dispose of inodes. factor the disposal into evict() to isolate this code and make it simpler to peel away the inode_lock from the code. While doing this, change the logic flow in iput_final() to separate the different cases that need to be handled to make the transitions the inode goes through more obvious. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/inode.c | 104 ++++++++++++++++++++++++------------------------------------- 1 file changed, 41 insertions(+), 63 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index 14b12c4ee026..f752a959254b 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -422,17 +422,6 @@ void __insert_inode_hash(struct inode *inode, unsigned long hashval) } EXPORT_SYMBOL(__insert_inode_hash); -/** - * __remove_inode_hash - remove an inode from the hash - * @inode: inode to unhash - * - * Remove an inode from the superblock. - */ -static void __remove_inode_hash(struct inode *inode) -{ - hlist_del_init(&inode->i_hash); -} - /** * remove_inode_hash - remove an inode from the hash * @inode: inode to unhash @@ -462,10 +451,31 @@ void end_writeback(struct inode *inode) } EXPORT_SYMBOL(end_writeback); +/* + * Free the inode passed in, removing it from the lists it is still connected + * to. We remove any pages still attached to the inode and wait for any IO that + * is still in progress before finally destroying the inode. + * + * An inode must already be marked I_FREEING so that we avoid the inode being + * moved back onto lists if we race with other code that manipulates the lists + * (e.g. writeback_single_inode). The caller is responsible for setting this. + * + * An inode must already be removed from the LRU list before being evicted from + * the cache. This should occur atomically with setting the I_FREEING state + * flag, so no inodes here should ever be on the LRU when being evicted. + */ static void evict(struct inode *inode) { const struct super_operations *op = inode->i_sb->s_op; + BUG_ON(!(inode->i_state & I_FREEING)); + BUG_ON(!list_empty(&inode->i_lru)); + + spin_lock(&inode_lock); + list_del_init(&inode->i_wb_list); + __inode_sb_list_del(inode); + spin_unlock(&inode_lock); + if (op->evict_inode) { op->evict_inode(inode); } else { @@ -477,6 +487,15 @@ static void evict(struct inode *inode) bd_forget(inode); if (S_ISCHR(inode->i_mode) && inode->i_cdev) cd_forget(inode); + + remove_inode_hash(inode); + + spin_lock(&inode->i_lock); + wake_up_bit(&inode->i_state, __I_NEW); + BUG_ON(inode->i_state != (I_FREEING | I_CLEAR)); + spin_unlock(&inode->i_lock); + + destroy_inode(inode); } /* @@ -495,16 +514,6 @@ static void dispose_list(struct list_head *head) list_del_init(&inode->i_lru); evict(inode); - - spin_lock(&inode_lock); - __remove_inode_hash(inode); - __inode_sb_list_del(inode); - spin_unlock(&inode_lock); - - spin_lock(&inode->i_lock); - wake_up_bit(&inode->i_state, __I_NEW); - spin_unlock(&inode->i_lock); - destroy_inode(inode); } } @@ -537,13 +546,7 @@ void evict_inodes(struct super_block *sb) if (!(inode->i_state & (I_DIRTY | I_SYNC))) inodes_stat.nr_unused--; spin_unlock(&inode->i_lock); - - /* - * Move the inode off the IO lists and LRU once I_FREEING is - * set so that it won't get moved back on there if it is dirty. - */ list_move(&inode->i_lru, &dispose); - list_del_init(&inode->i_wb_list); } spin_unlock(&inode_lock); @@ -596,13 +599,7 @@ int invalidate_inodes(struct super_block *sb, bool kill_dirty) if (!(inode->i_state & (I_DIRTY | I_SYNC))) inodes_stat.nr_unused--; spin_unlock(&inode->i_lock); - - /* - * Move the inode off the IO lists and LRU once I_FREEING is - * set so that it won't get moved back on there if it is dirty. - */ list_move(&inode->i_lru, &dispose); - list_del_init(&inode->i_wb_list); } spin_unlock(&inode_lock); @@ -699,12 +696,7 @@ static void prune_icache(int nr_to_scan) inode->i_state |= I_FREEING; spin_unlock(&inode->i_lock); - /* - * Move the inode off the IO lists and LRU once I_FREEING is - * set so that it won't get moved back on there if it is dirty. - */ list_move(&inode->i_lru, &freeable); - list_del_init(&inode->i_wb_list); inodes_stat.nr_unused--; } if (current_is_kswapd()) @@ -1434,16 +1426,16 @@ static void iput_final(struct inode *inode) else drop = generic_drop_inode(inode); + if (!drop && (sb->s_flags & MS_ACTIVE)) { + inode->i_state |= I_REFERENCED; + if (!(inode->i_state & (I_DIRTY|I_SYNC))) + inode_lru_list_add(inode); + spin_unlock(&inode->i_lock); + spin_unlock(&inode_lock); + return; + } + if (!drop) { - if (sb->s_flags & MS_ACTIVE) { - inode->i_state |= I_REFERENCED; - if (!(inode->i_state & (I_DIRTY|I_SYNC))) { - inode_lru_list_add(inode); - } - spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); - return; - } inode->i_state |= I_WILL_FREE; spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); @@ -1452,28 +1444,14 @@ static void iput_final(struct inode *inode) spin_lock(&inode->i_lock); WARN_ON(inode->i_state & I_NEW); inode->i_state &= ~I_WILL_FREE; - __remove_inode_hash(inode); } inode->i_state |= I_FREEING; - spin_unlock(&inode->i_lock); - - /* - * Move the inode off the IO lists and LRU once I_FREEING is - * set so that it won't get moved back on there if it is dirty. - */ inode_lru_list_del(inode); - list_del_init(&inode->i_wb_list); - - __inode_sb_list_del(inode); + spin_unlock(&inode->i_lock); spin_unlock(&inode_lock); + evict(inode); - remove_inode_hash(inode); - spin_lock(&inode->i_lock); - wake_up_bit(&inode->i_state, __I_NEW); - BUG_ON(inode->i_state != (I_FREEING | I_CLEAR)); - spin_unlock(&inode->i_lock); - destroy_inode(inode); } /** -- cgit v1.2.3 From 02afc410f363f98ac4f186341e38dcec13fc0e60 Mon Sep 17 00:00:00 2001 From: Dave Chinner <dchinner@redhat.com> Date: Tue, 22 Mar 2011 22:23:38 +1100 Subject: fs: Lock the inode LRU list separately Introduce the inode_lru_lock to protect the inode_lru list. This lock is nested inside the inode->i_lock to allow the inode to be added to the LRU list in iput_final without needing to deal with lock inversions. This keeps iput_final() clean and neat. Further, where marking the inode I_FREEING and removing it from the LRU, move the LRU list manipulation within the inode->i_lock to keep the list manipulation consistent with iput_final. This also means that most of the open coded LRU list removal + unused inode accounting can now use the inode_lru_list_del() wrappers which cleans the code up further. However, this locking change means what the LRU traversal in prune_icache() inverts this lock ordering and needs to use trylock semantics on the inode->i_lock to avoid deadlocking. In these cases, if we fail to lock the inode we move it to the back of the LRU to prevent spinning on it. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/inode.c | 39 ++++++++++++++++++++++++++++++--------- 1 file changed, 30 insertions(+), 9 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index f752a959254b..b19cb6ee6ca3 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -32,10 +32,13 @@ * * inode->i_lock protects: * inode->i_state, inode->i_hash, __iget() + * inode_lru_lock protects: + * inode_lru, inode->i_lru * * Lock ordering: * inode_lock * inode->i_lock + * inode_lru_lock */ /* @@ -85,6 +88,7 @@ static unsigned int i_hash_shift __read_mostly; */ static LIST_HEAD(inode_lru); +static DEFINE_SPINLOCK(inode_lru_lock); static struct hlist_head *inode_hashtable __read_mostly; /* @@ -356,18 +360,22 @@ EXPORT_SYMBOL(ihold); static void inode_lru_list_add(struct inode *inode) { + spin_lock(&inode_lru_lock); if (list_empty(&inode->i_lru)) { list_add(&inode->i_lru, &inode_lru); inodes_stat.nr_unused++; } + spin_unlock(&inode_lru_lock); } static void inode_lru_list_del(struct inode *inode) { + spin_lock(&inode_lru_lock); if (!list_empty(&inode->i_lru)) { list_del_init(&inode->i_lru); inodes_stat.nr_unused--; } + spin_unlock(&inode_lru_lock); } static inline void __inode_sb_list_add(struct inode *inode) @@ -543,10 +551,9 @@ void evict_inodes(struct super_block *sb) } inode->i_state |= I_FREEING; - if (!(inode->i_state & (I_DIRTY | I_SYNC))) - inodes_stat.nr_unused--; + inode_lru_list_del(inode); spin_unlock(&inode->i_lock); - list_move(&inode->i_lru, &dispose); + list_add(&inode->i_lru, &dispose); } spin_unlock(&inode_lock); @@ -596,10 +603,9 @@ int invalidate_inodes(struct super_block *sb, bool kill_dirty) } inode->i_state |= I_FREEING; - if (!(inode->i_state & (I_DIRTY | I_SYNC))) - inodes_stat.nr_unused--; + inode_lru_list_del(inode); spin_unlock(&inode->i_lock); - list_move(&inode->i_lru, &dispose); + list_add(&inode->i_lru, &dispose); } spin_unlock(&inode_lock); @@ -623,7 +629,7 @@ static int can_unuse(struct inode *inode) /* * Scan `goal' inodes on the unused list for freeable ones. They are moved to a - * temporary list and then are freed outside inode_lock by dispose_list(). + * temporary list and then are freed outside inode_lru_lock by dispose_list(). * * Any inodes which are pinned purely because of attached pagecache have their * pagecache removed. If the inode has metadata buffers attached to @@ -645,6 +651,7 @@ static void prune_icache(int nr_to_scan) down_read(&iprune_sem); spin_lock(&inode_lock); + spin_lock(&inode_lru_lock); for (nr_scanned = 0; nr_scanned < nr_to_scan; nr_scanned++) { struct inode *inode; @@ -653,11 +660,20 @@ static void prune_icache(int nr_to_scan) inode = list_entry(inode_lru.prev, struct inode, i_lru); + /* + * we are inverting the inode_lru_lock/inode->i_lock here, + * so use a trylock. If we fail to get the lock, just move the + * inode to the back of the list so we don't spin on it. + */ + if (!spin_trylock(&inode->i_lock)) { + list_move(&inode->i_lru, &inode_lru); + continue; + } + /* * Referenced or dirty inodes are still in use. Give them * another pass through the LRU as we canot reclaim them now. */ - spin_lock(&inode->i_lock); if (atomic_read(&inode->i_count) || (inode->i_state & ~I_REFERENCED)) { spin_unlock(&inode->i_lock); @@ -676,17 +692,21 @@ static void prune_icache(int nr_to_scan) if (inode_has_buffers(inode) || inode->i_data.nrpages) { __iget(inode); spin_unlock(&inode->i_lock); + spin_unlock(&inode_lru_lock); spin_unlock(&inode_lock); if (remove_inode_buffers(inode)) reap += invalidate_mapping_pages(&inode->i_data, 0, -1); iput(inode); spin_lock(&inode_lock); + spin_lock(&inode_lru_lock); if (inode != list_entry(inode_lru.next, struct inode, i_lru)) continue; /* wrong inode or list_empty */ - spin_lock(&inode->i_lock); + /* avoid lock inversions with trylock */ + if (!spin_trylock(&inode->i_lock)) + continue; if (!can_unuse(inode)) { spin_unlock(&inode->i_lock); continue; @@ -703,6 +723,7 @@ static void prune_icache(int nr_to_scan) __count_vm_events(KSWAPD_INODESTEAL, reap); else __count_vm_events(PGINODESTEAL, reap); + spin_unlock(&inode_lru_lock); spin_unlock(&inode_lock); dispose_list(&freeable); -- cgit v1.2.3 From f283c86afe6aa70b733d1ecebad5d9464943b774 Mon Sep 17 00:00:00 2001 From: Dave Chinner <dchinner@redhat.com> Date: Tue, 22 Mar 2011 22:23:39 +1100 Subject: fs: remove inode_lock from iput_final and prune_icache Now that inode state changes are protected by the inode->i_lock and the inode LRU manipulations by the inode_lru_lock, we can remove the inode_lock from prune_icache and the initial part of iput_final(). instead of using the inode_lock to protect the inode during iput_final, use the inode->i_lock instead. This protects the inode against new references being taken while we change the inode state to I_FREEING, as well as preventing prune_icache from grabbing the inode while we are manipulating it. Hence we no longer need the inode_lock in iput_final prior to setting I_FREEING on the inode. For prune_icache, we no longer need the inode_lock to protect the LRU list, and the inodes themselves are protected against freeing races by the inode->i_lock. Hence we can lift the inode_lock from prune_icache as well. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- Documentation/filesystems/Locking | 2 +- Documentation/filesystems/porting | 16 +++++++++++----- Documentation/filesystems/vfs.txt | 2 +- fs/inode.c | 17 +++-------------- fs/logfs/inode.c | 2 +- 5 files changed, 17 insertions(+), 22 deletions(-) diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 2e994efe12cb..61b31acb9176 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -128,7 +128,7 @@ alloc_inode: destroy_inode: dirty_inode: (must not sleep) write_inode: -drop_inode: !!!inode_lock!!! +drop_inode: !!!inode->i_lock!!! evict_inode: put_super: write write_super: read diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 0c986c9e8519..6e29954851a2 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -298,11 +298,14 @@ be used instead. It gets called whenever the inode is evicted, whether it has remaining links or not. Caller does *not* evict the pagecache or inode-associated metadata buffers; getting rid of those is responsibility of method, as it had been for ->delete_inode(). - ->drop_inode() returns int now; it's called on final iput() with inode_lock -held and it returns true if filesystems wants the inode to be dropped. As before, -generic_drop_inode() is still the default and it's been updated appropriately. -generic_delete_inode() is also alive and it consists simply of return 1. Note that -all actual eviction work is done by caller after ->drop_inode() returns. + + ->drop_inode() returns int now; it's called on final iput() with +inode->i_lock held and it returns true if filesystems wants the inode to be +dropped. As before, generic_drop_inode() is still the default and it's been +updated appropriately. generic_delete_inode() is also alive and it consists +simply of return 1. Note that all actual eviction work is done by caller after +->drop_inode() returns. + clear_inode() is gone; use end_writeback() instead. As before, it must be called exactly once on each call of ->evict_inode() (as it used to be for each call of ->delete_inode()). Unlike before, if you are using inode-associated @@ -395,6 +398,9 @@ Currently you can only have FALLOC_FL_PUNCH_HOLE with FALLOC_FL_KEEP_SIZE set, so the i_size should not change when hole punching, even when puching the end of a file off. +-- +[mandatory] + -- [mandatory] ->get_sb() is gone. Switch to use of ->mount(). Typically it's just diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index 306f0ae8df09..80815ed654cb 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -254,7 +254,7 @@ or bottom half). should be synchronous or not, not all filesystems check this flag. drop_inode: called when the last access to the inode is dropped, - with the inode_lock spinlock held. + with the inode->i_lock spinlock held. This method should be either NULL (normal UNIX filesystem semantics) or "generic_delete_inode" (for filesystems that do not diff --git a/fs/inode.c b/fs/inode.c index b19cb6ee6ca3..389f5a247599 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -650,7 +650,6 @@ static void prune_icache(int nr_to_scan) unsigned long reap = 0; down_read(&iprune_sem); - spin_lock(&inode_lock); spin_lock(&inode_lru_lock); for (nr_scanned = 0; nr_scanned < nr_to_scan; nr_scanned++) { struct inode *inode; @@ -676,8 +675,8 @@ static void prune_icache(int nr_to_scan) */ if (atomic_read(&inode->i_count) || (inode->i_state & ~I_REFERENCED)) { - spin_unlock(&inode->i_lock); list_del_init(&inode->i_lru); + spin_unlock(&inode->i_lock); inodes_stat.nr_unused--; continue; } @@ -685,20 +684,18 @@ static void prune_icache(int nr_to_scan) /* recently referenced inodes get one more pass */ if (inode->i_state & I_REFERENCED) { inode->i_state &= ~I_REFERENCED; - spin_unlock(&inode->i_lock); list_move(&inode->i_lru, &inode_lru); + spin_unlock(&inode->i_lock); continue; } if (inode_has_buffers(inode) || inode->i_data.nrpages) { __iget(inode); spin_unlock(&inode->i_lock); spin_unlock(&inode_lru_lock); - spin_unlock(&inode_lock); if (remove_inode_buffers(inode)) reap += invalidate_mapping_pages(&inode->i_data, 0, -1); iput(inode); - spin_lock(&inode_lock); spin_lock(&inode_lru_lock); if (inode != list_entry(inode_lru.next, @@ -724,7 +721,6 @@ static void prune_icache(int nr_to_scan) else __count_vm_events(PGINODESTEAL, reap); spin_unlock(&inode_lru_lock); - spin_unlock(&inode_lock); dispose_list(&freeable); up_read(&iprune_sem); @@ -1082,7 +1078,6 @@ EXPORT_SYMBOL(iunique); struct inode *igrab(struct inode *inode) { - spin_lock(&inode_lock); spin_lock(&inode->i_lock); if (!(inode->i_state & (I_FREEING|I_WILL_FREE))) { __iget(inode); @@ -1096,7 +1091,6 @@ struct inode *igrab(struct inode *inode) */ inode = NULL; } - spin_unlock(&inode_lock); return inode; } EXPORT_SYMBOL(igrab); @@ -1439,7 +1433,6 @@ static void iput_final(struct inode *inode) const struct super_operations *op = inode->i_sb->s_op; int drop; - spin_lock(&inode->i_lock); WARN_ON(inode->i_state & I_NEW); if (op && op->drop_inode) @@ -1452,16 +1445,13 @@ static void iput_final(struct inode *inode) if (!(inode->i_state & (I_DIRTY|I_SYNC))) inode_lru_list_add(inode); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); return; } if (!drop) { inode->i_state |= I_WILL_FREE; spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); write_inode_now(inode, 1); - spin_lock(&inode_lock); spin_lock(&inode->i_lock); WARN_ON(inode->i_state & I_NEW); inode->i_state &= ~I_WILL_FREE; @@ -1470,7 +1460,6 @@ static void iput_final(struct inode *inode) inode->i_state |= I_FREEING; inode_lru_list_del(inode); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); evict(inode); } @@ -1489,7 +1478,7 @@ void iput(struct inode *inode) if (inode) { BUG_ON(inode->i_state & I_CLEAR); - if (atomic_dec_and_lock(&inode->i_count, &inode_lock)) + if (atomic_dec_and_lock(&inode->i_count, &inode->i_lock)) iput_final(inode); } } diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c index 03b8c240aeda..edfea7a3a747 100644 --- a/fs/logfs/inode.c +++ b/fs/logfs/inode.c @@ -293,7 +293,7 @@ static int logfs_write_inode(struct inode *inode, struct writeback_control *wbc) return ret; } -/* called with inode_lock held */ +/* called with inode->i_lock held */ static int logfs_drop_inode(struct inode *inode) { struct logfs_super *super = logfs_super(inode->i_sb); -- cgit v1.2.3 From 55fa6091d83160ca772fc37cebae45d42695a708 Mon Sep 17 00:00:00 2001 From: Dave Chinner <dchinner@redhat.com> Date: Tue, 22 Mar 2011 22:23:40 +1100 Subject: fs: move i_sb_list out from under inode_lock Protect the per-sb inode list with a new global lock inode_sb_list_lock and use it to protect the list manipulations and traversals. This lock replaces the inode_lock as the inodes on the list can be validity checked while holding the inode->i_lock and hence the inode_lock is no longer needed to protect the list. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/drop_caches.c | 9 +++++---- fs/fs-writeback.c | 21 +++++++++++---------- fs/inode.c | 43 +++++++++++++++++++++++-------------------- fs/internal.h | 2 ++ fs/notify/inode_mark.c | 20 ++++++++++---------- fs/quota/dquot.c | 28 ++++++++++++++++------------ 6 files changed, 67 insertions(+), 56 deletions(-) diff --git a/fs/drop_caches.c b/fs/drop_caches.c index 6c6f73ba0868..98b77c89494c 100644 --- a/fs/drop_caches.c +++ b/fs/drop_caches.c @@ -8,6 +8,7 @@ #include <linux/writeback.h> #include <linux/sysctl.h> #include <linux/gfp.h> +#include "internal.h" /* A global variable is a bit ugly, but it keeps the code simple */ int sysctl_drop_caches; @@ -16,7 +17,7 @@ static void drop_pagecache_sb(struct super_block *sb, void *unused) { struct inode *inode, *toput_inode = NULL; - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { spin_lock(&inode->i_lock); if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) || @@ -26,13 +27,13 @@ static void drop_pagecache_sb(struct super_block *sb, void *unused) } __iget(inode); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); invalidate_mapping_pages(inode->i_mapping, 0, -1); iput(toput_inode); toput_inode = inode; - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); } - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); iput(toput_inode); } diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index efd1ebe879cc..5de56a2182bb 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -1123,7 +1123,7 @@ static void wait_sb_inodes(struct super_block *sb) */ WARN_ON(!rwsem_is_locked(&sb->s_umount)); - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); /* * Data integrity sync. Must wait for all pages under writeback, @@ -1143,14 +1143,15 @@ static void wait_sb_inodes(struct super_block *sb) } __iget(inode); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); + /* - * We hold a reference to 'inode' so it couldn't have - * been removed from s_inodes list while we dropped the - * inode_lock. We cannot iput the inode now as we can - * be holding the last reference and we cannot iput it - * under inode_lock. So we keep the reference and iput - * it later. + * We hold a reference to 'inode' so it couldn't have been + * removed from s_inodes list while we dropped the + * inode_sb_list_lock. We cannot iput the inode now as we can + * be holding the last reference and we cannot iput it under + * inode_sb_list_lock. So we keep the reference and iput it + * later. */ iput(old_inode); old_inode = inode; @@ -1159,9 +1160,9 @@ static void wait_sb_inodes(struct super_block *sb) cond_resched(); - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); } - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); iput(old_inode); } diff --git a/fs/inode.c b/fs/inode.c index 389f5a247599..785b1ab23ff0 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -34,10 +34,15 @@ * inode->i_state, inode->i_hash, __iget() * inode_lru_lock protects: * inode_lru, inode->i_lru + * inode_sb_list_lock protects: + * sb->s_inodes, inode->i_sb_list * * Lock ordering: * inode_lock * inode->i_lock + * + * inode_sb_list_lock + * inode->i_lock * inode_lru_lock */ @@ -99,6 +104,8 @@ static struct hlist_head *inode_hashtable __read_mostly; */ DEFINE_SPINLOCK(inode_lock); +__cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_sb_list_lock); + /* * iprune_sem provides exclusion between the icache shrinking and the * umount path. @@ -378,26 +385,23 @@ static void inode_lru_list_del(struct inode *inode) spin_unlock(&inode_lru_lock); } -static inline void __inode_sb_list_add(struct inode *inode) -{ - list_add(&inode->i_sb_list, &inode->i_sb->s_inodes); -} - /** * inode_sb_list_add - add inode to the superblock list of inodes * @inode: inode to add */ void inode_sb_list_add(struct inode *inode) { - spin_lock(&inode_lock); - __inode_sb_list_add(inode); - spin_unlock(&inode_lock); + spin_lock(&inode_sb_list_lock); + list_add(&inode->i_sb_list, &inode->i_sb->s_inodes); + spin_unlock(&inode_sb_list_lock); } EXPORT_SYMBOL_GPL(inode_sb_list_add); -static inline void __inode_sb_list_del(struct inode *inode) +static inline void inode_sb_list_del(struct inode *inode) { + spin_lock(&inode_sb_list_lock); list_del_init(&inode->i_sb_list); + spin_unlock(&inode_sb_list_lock); } static unsigned long hash(struct super_block *sb, unsigned long hashval) @@ -481,9 +485,10 @@ static void evict(struct inode *inode) spin_lock(&inode_lock); list_del_init(&inode->i_wb_list); - __inode_sb_list_del(inode); spin_unlock(&inode_lock); + inode_sb_list_del(inode); + if (op->evict_inode) { op->evict_inode(inode); } else { @@ -539,7 +544,7 @@ void evict_inodes(struct super_block *sb) struct inode *inode, *next; LIST_HEAD(dispose); - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) { if (atomic_read(&inode->i_count)) continue; @@ -555,7 +560,7 @@ void evict_inodes(struct super_block *sb) spin_unlock(&inode->i_lock); list_add(&inode->i_lru, &dispose); } - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); dispose_list(&dispose); @@ -584,7 +589,7 @@ int invalidate_inodes(struct super_block *sb, bool kill_dirty) struct inode *inode, *next; LIST_HEAD(dispose); - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) { spin_lock(&inode->i_lock); if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) { @@ -607,7 +612,7 @@ int invalidate_inodes(struct super_block *sb, bool kill_dirty) spin_unlock(&inode->i_lock); list_add(&inode->i_lru, &dispose); } - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); dispose_list(&dispose); @@ -867,16 +872,14 @@ struct inode *new_inode(struct super_block *sb) { struct inode *inode; - spin_lock_prefetch(&inode_lock); + spin_lock_prefetch(&inode_sb_list_lock); inode = alloc_inode(sb); if (inode) { - spin_lock(&inode_lock); spin_lock(&inode->i_lock); inode->i_state = 0; spin_unlock(&inode->i_lock); - __inode_sb_list_add(inode); - spin_unlock(&inode_lock); + inode_sb_list_add(inode); } return inode; } @@ -945,7 +948,7 @@ static struct inode *get_new_inode(struct super_block *sb, inode->i_state = I_NEW; hlist_add_head(&inode->i_hash, head); spin_unlock(&inode->i_lock); - __inode_sb_list_add(inode); + inode_sb_list_add(inode); spin_unlock(&inode_lock); /* Return the locked inode with I_NEW set, the @@ -994,7 +997,7 @@ static struct inode *get_new_inode_fast(struct super_block *sb, inode->i_state = I_NEW; hlist_add_head(&inode->i_hash, head); spin_unlock(&inode->i_lock); - __inode_sb_list_add(inode); + inode_sb_list_add(inode); spin_unlock(&inode_lock); /* Return the locked inode with I_NEW set, the diff --git a/fs/internal.h b/fs/internal.h index 8318059b42c6..7013ae0c88c1 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -125,6 +125,8 @@ extern long do_handle_open(int mountdirfd, /* * inode.c */ +extern spinlock_t inode_sb_list_lock; + extern int get_nr_dirty_inodes(void); extern void evict_inodes(struct super_block *); extern int invalidate_inodes(struct super_block *, bool); diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c index 4dd53fb44124..fb3b3c5ef0ee 100644 --- a/fs/notify/inode_mark.c +++ b/fs/notify/inode_mark.c @@ -29,6 +29,8 @@ #include <linux/fsnotify_backend.h> #include "fsnotify.h" +#include "../internal.h" + /* * Recalculate the mask of events relevant to a given inode locked. */ @@ -237,15 +239,14 @@ out: * fsnotify_unmount_inodes - an sb is unmounting. handle any watched inodes. * @list: list of inodes being unmounted (sb->s_inodes) * - * Called with inode_lock held, protecting the unmounting super block's list - * of inodes, and with iprune_mutex held, keeping shrink_icache_memory() at bay. - * We temporarily drop inode_lock, however, and CAN block. + * Called during unmount with no locks held, so needs to be safe against + * concurrent modifiers. We temporarily drop inode_sb_list_lock and CAN block. */ void fsnotify_unmount_inodes(struct list_head *list) { struct inode *inode, *next_i, *need_iput = NULL; - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); list_for_each_entry_safe(inode, next_i, list, i_sb_list) { struct inode *need_iput_tmp; @@ -293,12 +294,11 @@ void fsnotify_unmount_inodes(struct list_head *list) } /* - * We can safely drop inode_lock here because we hold + * We can safely drop inode_sb_list_lock here because we hold * references on both inode and next_i. Also no new inodes - * will be added since the umount has begun. Finally, - * iprune_mutex keeps shrink_icache_memory() away. + * will be added since the umount has begun. */ - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); if (need_iput_tmp) iput(need_iput_tmp); @@ -310,7 +310,7 @@ void fsnotify_unmount_inodes(struct list_head *list) iput(inode); - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); } - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); } diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index a1470fda366c..fcc8ae75d874 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -76,7 +76,7 @@ #include <linux/buffer_head.h> #include <linux/capability.h> #include <linux/quotaops.h> -#include <linux/writeback.h> /* for inode_lock, oddly enough.. */ +#include "../internal.h" /* ugh */ #include <asm/uaccess.h> @@ -900,7 +900,7 @@ static void add_dquot_ref(struct super_block *sb, int type) int reserved = 0; #endif - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { spin_lock(&inode->i_lock); if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) || @@ -915,19 +915,23 @@ static void add_dquot_ref(struct super_block *sb, int type) #endif __iget(inode); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); iput(old_inode); __dquot_initialize(inode, type); - /* We hold a reference to 'inode' so it couldn't have been - * removed from s_inodes list while we dropped the inode_lock. - * We cannot iput the inode now as we can be holding the last - * reference and we cannot iput it under inode_lock. So we - * keep the reference and iput it later. */ + + /* + * We hold a reference to 'inode' so it couldn't have been + * removed from s_inodes list while we dropped the + * inode_sb_list_lock We cannot iput the inode now as we can be + * holding the last reference and we cannot iput it under + * inode_sb_list_lock. So we keep the reference and iput it + * later. + */ old_inode = inode; - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); } - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); iput(old_inode); #ifdef CONFIG_QUOTA_DEBUG @@ -1008,7 +1012,7 @@ static void remove_dquot_ref(struct super_block *sb, int type, struct inode *inode; int reserved = 0; - spin_lock(&inode_lock); + spin_lock(&inode_sb_list_lock); list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { /* * We have to scan also I_NEW inodes because they can already @@ -1022,7 +1026,7 @@ static void remove_dquot_ref(struct super_block *sb, int type, remove_inode_dquot_ref(inode, type, tofree_head); } } - spin_unlock(&inode_lock); + spin_unlock(&inode_sb_list_lock); #ifdef CONFIG_QUOTA_DEBUG if (reserved) { printk(KERN_WARNING "VFS (%s): Writes happened after quota" -- cgit v1.2.3 From a66979abad090b2765a6c6790c9fdeab996833f2 Mon Sep 17 00:00:00 2001 From: Dave Chinner <dchinner@redhat.com> Date: Tue, 22 Mar 2011 22:23:41 +1100 Subject: fs: move i_wb_list out from under inode_lock Protect the inode writeback list with a new global lock inode_wb_list_lock and use it to protect the list manipulations and traversals. This lock replaces the inode_lock as the inodes on the list can be validity checked while holding the inode->i_lock and hence the inode_lock is no longer needed to protect the list. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/block_dev.c | 4 +-- fs/fs-writeback.c | 76 +++++++++++++++++++++++++++-------------------- fs/inode.c | 12 +++++--- fs/internal.h | 5 ++++ include/linux/writeback.h | 1 + mm/backing-dev.c | 8 ++--- mm/filemap.c | 8 ++--- mm/rmap.c | 4 +-- 8 files changed, 70 insertions(+), 48 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index bc39b18cf3d0..2bbc0e62102f 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -55,13 +55,13 @@ EXPORT_SYMBOL(I_BDEV); static void bdev_inode_switch_bdi(struct inode *inode, struct backing_dev_info *dst) { - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); spin_lock(&inode->i_lock); inode->i_data.backing_dev_info = dst; if (inode->i_state & I_DIRTY) list_move(&inode->i_wb_list, &dst->wb.b_dirty); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); } static sector_t max_block(struct block_device *bdev) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 5de56a2182bb..ed800656356b 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -175,6 +175,17 @@ void bdi_start_background_writeback(struct backing_dev_info *bdi) spin_unlock_bh(&bdi->wb_lock); } +/* + * Remove the inode from the writeback list it is on. + */ +void inode_wb_list_del(struct inode *inode) +{ + spin_lock(&inode_wb_list_lock); + list_del_init(&inode->i_wb_list); + spin_unlock(&inode_wb_list_lock); +} + + /* * Redirty an inode: set its when-it-was dirtied timestamp and move it to the * furthest end of its superblock's dirty-inode list. @@ -188,6 +199,7 @@ static void redirty_tail(struct inode *inode) { struct bdi_writeback *wb = &inode_to_bdi(inode)->wb; + assert_spin_locked(&inode_wb_list_lock); if (!list_empty(&wb->b_dirty)) { struct inode *tail; @@ -205,14 +217,17 @@ static void requeue_io(struct inode *inode) { struct bdi_writeback *wb = &inode_to_bdi(inode)->wb; + assert_spin_locked(&inode_wb_list_lock); list_move(&inode->i_wb_list, &wb->b_more_io); } static void inode_sync_complete(struct inode *inode) { /* - * Prevent speculative execution through spin_unlock(&inode_lock); + * Prevent speculative execution through + * spin_unlock(&inode_wb_list_lock); */ + smp_mb(); wake_up_bit(&inode->i_state, __I_SYNC); } @@ -286,6 +301,7 @@ static void move_expired_inodes(struct list_head *delaying_queue, */ static void queue_io(struct bdi_writeback *wb, unsigned long *older_than_this) { + assert_spin_locked(&inode_wb_list_lock); list_splice_init(&wb->b_more_io, &wb->b_io); move_expired_inodes(&wb->b_dirty, &wb->b_io, older_than_this); } @@ -308,25 +324,23 @@ static void inode_wait_for_writeback(struct inode *inode) wqh = bit_waitqueue(&inode->i_state, __I_SYNC); while (inode->i_state & I_SYNC) { spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); __wait_on_bit(wqh, &wq, inode_wait, TASK_UNINTERRUPTIBLE); - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); spin_lock(&inode->i_lock); } } /* - * Write out an inode's dirty pages. Called under inode_lock. Either the - * caller has ref on the inode (either via __iget or via syscall against an fd) - * or the inode has I_WILL_FREE set (via generic_forget_inode) + * Write out an inode's dirty pages. Called under inode_wb_list_lock. Either + * the caller has an active reference on the inode or the inode has I_WILL_FREE + * set. * * If `wait' is set, wait on the writeout. * * The whole writeout design is quite complex and fragile. We want to avoid * starvation of particular inodes when others are being redirtied, prevent * livelocks, etc. - * - * Called under inode_lock. */ static int writeback_single_inode(struct inode *inode, struct writeback_control *wbc) @@ -368,7 +382,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) inode->i_state |= I_SYNC; inode->i_state &= ~I_DIRTY_PAGES; spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); ret = do_writepages(mapping, wbc); @@ -388,12 +402,10 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) * due to delalloc, clear dirty metadata flags right before * write_inode() */ - spin_lock(&inode_lock); spin_lock(&inode->i_lock); dirty = inode->i_state & I_DIRTY; inode->i_state &= ~(I_DIRTY_SYNC | I_DIRTY_DATASYNC); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); /* Don't write the inode if only I_DIRTY_PAGES was set */ if (dirty & (I_DIRTY_SYNC | I_DIRTY_DATASYNC)) { int err = write_inode(inode, wbc); @@ -401,7 +413,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) ret = err; } - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); spin_lock(&inode->i_lock); inode->i_state &= ~I_SYNC; if (!(inode->i_state & I_FREEING)) { @@ -543,10 +555,10 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb, */ redirty_tail(inode); } - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); iput(inode); cond_resched(); - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); if (wbc->nr_to_write <= 0) { wbc->more_io = 1; return 1; @@ -565,7 +577,7 @@ void writeback_inodes_wb(struct bdi_writeback *wb, if (!wbc->wb_start) wbc->wb_start = jiffies; /* livelock avoidance */ - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); if (!wbc->for_kupdate || list_empty(&wb->b_io)) queue_io(wb, wbc->older_than_this); @@ -583,7 +595,7 @@ void writeback_inodes_wb(struct bdi_writeback *wb, if (ret) break; } - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); /* Leave any unwritten inodes on b_io */ } @@ -592,11 +604,11 @@ static void __writeback_inodes_sb(struct super_block *sb, { WARN_ON(!rwsem_is_locked(&sb->s_umount)); - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); if (!wbc->for_kupdate || list_empty(&wb->b_io)) queue_io(wb, wbc->older_than_this); writeback_sb_inodes(sb, wb, wbc, true); - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); } /* @@ -735,7 +747,7 @@ static long wb_writeback(struct bdi_writeback *wb, * become available for writeback. Otherwise * we'll just busyloop. */ - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); if (!list_empty(&wb->b_more_io)) { inode = wb_inode(wb->b_more_io.prev); trace_wbc_writeback_wait(&wbc, wb->bdi); @@ -743,7 +755,7 @@ static long wb_writeback(struct bdi_writeback *wb, inode_wait_for_writeback(inode); spin_unlock(&inode->i_lock); } - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); } return wrote; @@ -1009,7 +1021,6 @@ void __mark_inode_dirty(struct inode *inode, int flags) { struct super_block *sb = inode->i_sb; struct backing_dev_info *bdi = NULL; - bool wakeup_bdi = false; /* * Don't do this for I_DIRTY_PAGES - that doesn't actually @@ -1033,7 +1044,6 @@ void __mark_inode_dirty(struct inode *inode, int flags) if (unlikely(block_dump)) block_dump___mark_inode_dirty(inode); - spin_lock(&inode_lock); spin_lock(&inode->i_lock); if ((inode->i_state & flags) != flags) { const int was_dirty = inode->i_state & I_DIRTY; @@ -1059,12 +1069,12 @@ void __mark_inode_dirty(struct inode *inode, int flags) if (inode->i_state & I_FREEING) goto out_unlock_inode; - spin_unlock(&inode->i_lock); /* * If the inode was already on b_dirty/b_io/b_more_io, don't * reposition it (that would break b_dirty time-ordering). */ if (!was_dirty) { + bool wakeup_bdi = false; bdi = inode_to_bdi(inode); if (bdi_cap_writeback_dirty(bdi)) { @@ -1081,18 +1091,20 @@ void __mark_inode_dirty(struct inode *inode, int flags) wakeup_bdi = true; } + spin_unlock(&inode->i_lock); + spin_lock(&inode_wb_list_lock); inode->dirtied_when = jiffies; list_move(&inode->i_wb_list, &bdi->wb.b_dirty); + spin_unlock(&inode_wb_list_lock); + + if (wakeup_bdi) + bdi_wakeup_thread_delayed(bdi); + return; } - goto out; } out_unlock_inode: spin_unlock(&inode->i_lock); -out: - spin_unlock(&inode_lock); - if (wakeup_bdi) - bdi_wakeup_thread_delayed(bdi); } EXPORT_SYMBOL(__mark_inode_dirty); @@ -1296,9 +1308,9 @@ int write_inode_now(struct inode *inode, int sync) wbc.nr_to_write = 0; might_sleep(); - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); ret = writeback_single_inode(inode, &wbc); - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); if (sync) inode_sync_wait(inode); return ret; @@ -1320,9 +1332,9 @@ int sync_inode(struct inode *inode, struct writeback_control *wbc) { int ret; - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); ret = writeback_single_inode(inode, wbc); - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); return ret; } EXPORT_SYMBOL(sync_inode); diff --git a/fs/inode.c b/fs/inode.c index 785b1ab23ff0..239fdc08719e 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -26,6 +26,7 @@ #include <linux/posix_acl.h> #include <linux/ima.h> #include <linux/cred.h> +#include "internal.h" /* * inode locking rules. @@ -36,6 +37,8 @@ * inode_lru, inode->i_lru * inode_sb_list_lock protects: * sb->s_inodes, inode->i_sb_list + * inode_wb_list_lock protects: + * bdi->wb.b_{dirty,io,more_io}, inode->i_wb_list * * Lock ordering: * inode_lock @@ -44,6 +47,9 @@ * inode_sb_list_lock * inode->i_lock * inode_lru_lock + * + * inode_wb_list_lock + * inode->i_lock */ /* @@ -105,6 +111,7 @@ static struct hlist_head *inode_hashtable __read_mostly; DEFINE_SPINLOCK(inode_lock); __cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_sb_list_lock); +__cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_wb_list_lock); /* * iprune_sem provides exclusion between the icache shrinking and the @@ -483,10 +490,7 @@ static void evict(struct inode *inode) BUG_ON(!(inode->i_state & I_FREEING)); BUG_ON(!list_empty(&inode->i_lru)); - spin_lock(&inode_lock); - list_del_init(&inode->i_wb_list); - spin_unlock(&inode_lock); - + inode_wb_list_del(inode); inode_sb_list_del(inode); if (op->evict_inode) { diff --git a/fs/internal.h b/fs/internal.h index 7013ae0c88c1..b29c46e4e32f 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -127,6 +127,11 @@ extern long do_handle_open(int mountdirfd, */ extern spinlock_t inode_sb_list_lock; +/* + * fs-writeback.c + */ +extern void inode_wb_list_del(struct inode *inode); + extern int get_nr_dirty_inodes(void); extern void evict_inodes(struct super_block *); extern int invalidate_inodes(struct super_block *, bool); diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 0ead399e08b5..3f5fee718329 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -10,6 +10,7 @@ struct backing_dev_info; extern spinlock_t inode_lock; +extern spinlock_t inode_wb_list_lock; /* * fs/fs-writeback.c diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 027100d30227..4b3e9f17ee21 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -73,14 +73,14 @@ static int bdi_debug_stats_show(struct seq_file *m, void *v) struct inode *inode; nr_wb = nr_dirty = nr_io = nr_more_io = 0; - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); list_for_each_entry(inode, &wb->b_dirty, i_wb_list) nr_dirty++; list_for_each_entry(inode, &wb->b_io, i_wb_list) nr_io++; list_for_each_entry(inode, &wb->b_more_io, i_wb_list) nr_more_io++; - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); global_dirty_limits(&background_thresh, &dirty_thresh); bdi_thresh = bdi_dirty_limit(bdi, dirty_thresh); @@ -682,11 +682,11 @@ void bdi_destroy(struct backing_dev_info *bdi) if (bdi_has_dirty_io(bdi)) { struct bdi_writeback *dst = &default_backing_dev_info.wb; - spin_lock(&inode_lock); + spin_lock(&inode_wb_list_lock); list_splice(&bdi->wb.b_dirty, &dst->b_dirty); list_splice(&bdi->wb.b_io, &dst->b_io); list_splice(&bdi->wb.b_more_io, &dst->b_more_io); - spin_unlock(&inode_lock); + spin_unlock(&inode_wb_list_lock); } bdi_unregister(bdi); diff --git a/mm/filemap.c b/mm/filemap.c index 499e9aa91450..d8b34d1a1071 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -80,8 +80,8 @@ * ->i_mutex * ->i_alloc_sem (various) * - * ->inode_lock - * ->sb_lock (fs/fs-writeback.c) + * inode_wb_list_lock + * sb_lock (fs/fs-writeback.c) * ->mapping->tree_lock (__sync_single_inode) * * ->i_mmap_lock @@ -98,9 +98,9 @@ * ->zone.lru_lock (check_pte_range->isolate_lru_page) * ->private_lock (page_remove_rmap->set_page_dirty) * ->tree_lock (page_remove_rmap->set_page_dirty) - * ->inode_lock (page_remove_rmap->set_page_dirty) + * inode_wb_list_lock (page_remove_rmap->set_page_dirty) * ->inode->i_lock (page_remove_rmap->set_page_dirty) - * ->inode_lock (zap_pte_range->set_page_dirty) + * inode_wb_list_lock (zap_pte_range->set_page_dirty) * ->inode->i_lock (zap_pte_range->set_page_dirty) * ->private_lock (zap_pte_range->__set_page_dirty_buffers) * diff --git a/mm/rmap.c b/mm/rmap.c index 7dada0456448..8da044a1db0f 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -31,12 +31,12 @@ * swap_lock (in swap_duplicate, swap_info_get) * mmlist_lock (in mmput, drain_mmlist and others) * mapping->private_lock (in __set_page_dirty_buffers) - * inode_lock (in set_page_dirty's __mark_inode_dirty) * inode->i_lock (in set_page_dirty's __mark_inode_dirty) + * inode_wb_list_lock (in set_page_dirty's __mark_inode_dirty) * sb_lock (within inode_lock in fs/fs-writeback.c) * mapping->tree_lock (widely used, in set_page_dirty, * in arch-dependent flush_dcache_mmap_lock, - * within inode_lock in __sync_single_inode) + * within inode_wb_list_lock in __sync_single_inode) * * (code doesn't rely on that order so it could be switched around) * ->tasklist_lock -- cgit v1.2.3 From 67a23c494621ff1d5431c3bc320947865b224625 Mon Sep 17 00:00:00 2001 From: Dave Chinner <dchinner@redhat.com> Date: Tue, 22 Mar 2011 22:23:42 +1100 Subject: fs: rename inode_lock to inode_hash_lock All that remains of the inode_lock is protecting the inode hash list manipulation and traversals. Rename the inode_lock to inode_hash_lock to reflect it's actual function. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/inode.c | 111 +++++++++++++++++++++++++--------------------- fs/notify/inode_mark.c | 1 - fs/notify/mark.c | 1 - fs/notify/vfsmount_mark.c | 1 - fs/ntfs/inode.c | 4 +- include/linux/writeback.h | 1 - 6 files changed, 63 insertions(+), 56 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index 239fdc08719e..f9ee4928358f 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -39,10 +39,10 @@ * sb->s_inodes, inode->i_sb_list * inode_wb_list_lock protects: * bdi->wb.b_{dirty,io,more_io}, inode->i_wb_list + * inode_hash_lock protects: + * inode_hashtable, inode->i_hash * * Lock ordering: - * inode_lock - * inode->i_lock * * inode_sb_list_lock * inode->i_lock @@ -50,6 +50,13 @@ * * inode_wb_list_lock * inode->i_lock + * + * inode_hash_lock + * inode_sb_list_lock + * inode->i_lock + * + * iunique_lock + * inode_hash_lock */ /* @@ -85,6 +92,8 @@ static unsigned int i_hash_mask __read_mostly; static unsigned int i_hash_shift __read_mostly; +static struct hlist_head *inode_hashtable __read_mostly; +static __cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_hash_lock); /* * Each inode can be on two separate lists. One is @@ -100,15 +109,6 @@ static unsigned int i_hash_shift __read_mostly; static LIST_HEAD(inode_lru); static DEFINE_SPINLOCK(inode_lru_lock); -static struct hlist_head *inode_hashtable __read_mostly; - -/* - * A simple spinlock to protect the list manipulations. - * - * NOTE! You also have to own the lock if you change - * the i_state of an inode while it is in use.. - */ -DEFINE_SPINLOCK(inode_lock); __cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_sb_list_lock); __cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_wb_list_lock); @@ -433,11 +433,11 @@ void __insert_inode_hash(struct inode *inode, unsigned long hashval) { struct hlist_head *b = inode_hashtable + hash(inode->i_sb, hashval); - spin_lock(&inode_lock); + spin_lock(&inode_hash_lock); spin_lock(&inode->i_lock); hlist_add_head(&inode->i_hash, b); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); } EXPORT_SYMBOL(__insert_inode_hash); @@ -449,11 +449,11 @@ EXPORT_SYMBOL(__insert_inode_hash); */ void remove_inode_hash(struct inode *inode) { - spin_lock(&inode_lock); + spin_lock(&inode_hash_lock); spin_lock(&inode->i_lock); hlist_del_init(&inode->i_hash); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); } EXPORT_SYMBOL(remove_inode_hash); @@ -778,11 +778,15 @@ static struct inode *find_inode(struct super_block *sb, repeat: hlist_for_each_entry(inode, node, head, i_hash) { - if (inode->i_sb != sb) + spin_lock(&inode->i_lock); + if (inode->i_sb != sb) { + spin_unlock(&inode->i_lock); continue; - if (!test(inode, data)) + } + if (!test(inode, data)) { + spin_unlock(&inode->i_lock); continue; - spin_lock(&inode->i_lock); + } if (inode->i_state & (I_FREEING|I_WILL_FREE)) { __wait_on_freeing_inode(inode); goto repeat; @@ -806,11 +810,15 @@ static struct inode *find_inode_fast(struct super_block *sb, repeat: hlist_for_each_entry(inode, node, head, i_hash) { - if (inode->i_ino != ino) + spin_lock(&inode->i_lock); + if (inode->i_ino != ino) { + spin_unlock(&inode->i_lock); continue; - if (inode->i_sb != sb) + } + if (inode->i_sb != sb) { + spin_unlock(&inode->i_lock); continue; - spin_lock(&inode->i_lock); + } if (inode->i_state & (I_FREEING|I_WILL_FREE)) { __wait_on_freeing_inode(inode); goto repeat; @@ -924,7 +932,7 @@ void unlock_new_inode(struct inode *inode) EXPORT_SYMBOL(unlock_new_inode); /* - * This is called without the inode lock held.. Be careful. + * This is called without the inode hash lock held.. Be careful. * * We no longer cache the sb_flags in i_flags - see fs.h * -- rmk@arm.uk.linux.org @@ -941,7 +949,7 @@ static struct inode *get_new_inode(struct super_block *sb, if (inode) { struct inode *old; - spin_lock(&inode_lock); + spin_lock(&inode_hash_lock); /* We released the lock, so.. */ old = find_inode(sb, head, test, data); if (!old) { @@ -953,7 +961,7 @@ static struct inode *get_new_inode(struct super_block *sb, hlist_add_head(&inode->i_hash, head); spin_unlock(&inode->i_lock); inode_sb_list_add(inode); - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); /* Return the locked inode with I_NEW set, the * caller is responsible for filling in the contents @@ -966,7 +974,7 @@ static struct inode *get_new_inode(struct super_block *sb, * us. Use the old inode instead of the one we just * allocated. */ - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); destroy_inode(inode); inode = old; wait_on_inode(inode); @@ -974,7 +982,7 @@ static struct inode *get_new_inode(struct super_block *sb, return inode; set_failed: - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); destroy_inode(inode); return NULL; } @@ -992,7 +1000,7 @@ static struct inode *get_new_inode_fast(struct super_block *sb, if (inode) { struct inode *old; - spin_lock(&inode_lock); + spin_lock(&inode_hash_lock); /* We released the lock, so.. */ old = find_inode_fast(sb, head, ino); if (!old) { @@ -1002,7 +1010,7 @@ static struct inode *get_new_inode_fast(struct super_block *sb, hlist_add_head(&inode->i_hash, head); spin_unlock(&inode->i_lock); inode_sb_list_add(inode); - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); /* Return the locked inode with I_NEW set, the * caller is responsible for filling in the contents @@ -1015,7 +1023,7 @@ static struct inode *get_new_inode_fast(struct super_block *sb, * us. Use the old inode instead of the one we just * allocated. */ - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); destroy_inode(inode); inode = old; wait_on_inode(inode); @@ -1036,10 +1044,14 @@ static int test_inode_iunique(struct super_block *sb, unsigned long ino) struct hlist_node *node; struct inode *inode; + spin_lock(&inode_hash_lock); hlist_for_each_entry(inode, node, b, i_hash) { - if (inode->i_ino == ino && inode->i_sb == sb) + if (inode->i_ino == ino && inode->i_sb == sb) { + spin_unlock(&inode_hash_lock); return 0; + } } + spin_unlock(&inode_hash_lock); return 1; } @@ -1069,7 +1081,6 @@ ino_t iunique(struct super_block *sb, ino_t max_reserved) static unsigned int counter; ino_t res; - spin_lock(&inode_lock); spin_lock(&iunique_lock); do { if (counter <= max_reserved) @@ -1077,7 +1088,6 @@ ino_t iunique(struct super_block *sb, ino_t max_reserved) res = counter++; } while (!test_inode_iunique(sb, res)); spin_unlock(&iunique_lock); - spin_unlock(&inode_lock); return res; } @@ -1119,7 +1129,7 @@ EXPORT_SYMBOL(igrab); * * Otherwise NULL is returned. * - * Note, @test is called with the inode_lock held, so can't sleep. + * Note, @test is called with the inode_hash_lock held, so can't sleep. */ static struct inode *ifind(struct super_block *sb, struct hlist_head *head, int (*test)(struct inode *, void *), @@ -1127,15 +1137,15 @@ static struct inode *ifind(struct super_block *sb, { struct inode *inode; - spin_lock(&inode_lock); + spin_lock(&inode_hash_lock); inode = find_inode(sb, head, test, data); if (inode) { - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); if (likely(wait)) wait_on_inode(inode); return inode; } - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); return NULL; } @@ -1159,14 +1169,14 @@ static struct inode *ifind_fast(struct super_block *sb, { struct inode *inode; - spin_lock(&inode_lock); + spin_lock(&inode_hash_lock); inode = find_inode_fast(sb, head, ino); if (inode) { - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); wait_on_inode(inode); return inode; } - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); return NULL; } @@ -1189,7 +1199,7 @@ static struct inode *ifind_fast(struct super_block *sb, * * Otherwise NULL is returned. * - * Note, @test is called with the inode_lock held, so can't sleep. + * Note, @test is called with the inode_hash_lock held, so can't sleep. */ struct inode *ilookup5_nowait(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), void *data) @@ -1217,7 +1227,7 @@ EXPORT_SYMBOL(ilookup5_nowait); * * Otherwise NULL is returned. * - * Note, @test is called with the inode_lock held, so can't sleep. + * Note, @test is called with the inode_hash_lock held, so can't sleep. */ struct inode *ilookup5(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), void *data) @@ -1268,7 +1278,8 @@ EXPORT_SYMBOL(ilookup); * inode and this is returned locked, hashed, and with the I_NEW flag set. The * file system gets to fill it in before unlocking it via unlock_new_inode(). * - * Note both @test and @set are called with the inode_lock held, so can't sleep. + * Note both @test and @set are called with the inode_hash_lock held, so can't + * sleep. */ struct inode *iget5_locked(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), @@ -1328,7 +1339,7 @@ int insert_inode_locked(struct inode *inode) while (1) { struct hlist_node *node; struct inode *old = NULL; - spin_lock(&inode_lock); + spin_lock(&inode_hash_lock); hlist_for_each_entry(old, node, head, i_hash) { if (old->i_ino != ino) continue; @@ -1346,12 +1357,12 @@ int insert_inode_locked(struct inode *inode) inode->i_state |= I_NEW; hlist_add_head(&inode->i_hash, head); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); return 0; } __iget(old); spin_unlock(&old->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); wait_on_inode(old); if (unlikely(!inode_unhashed(old))) { iput(old); @@ -1372,7 +1383,7 @@ int insert_inode_locked4(struct inode *inode, unsigned long hashval, struct hlist_node *node; struct inode *old = NULL; - spin_lock(&inode_lock); + spin_lock(&inode_hash_lock); hlist_for_each_entry(old, node, head, i_hash) { if (old->i_sb != sb) continue; @@ -1390,12 +1401,12 @@ int insert_inode_locked4(struct inode *inode, unsigned long hashval, inode->i_state |= I_NEW; hlist_add_head(&inode->i_hash, head); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); return 0; } __iget(old); spin_unlock(&old->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); wait_on_inode(old); if (unlikely(!inode_unhashed(old))) { iput(old); @@ -1674,10 +1685,10 @@ static void __wait_on_freeing_inode(struct inode *inode) wq = bit_waitqueue(&inode->i_state, __I_NEW); prepare_to_wait(wq, &wait.wait, TASK_UNINTERRUPTIBLE); spin_unlock(&inode->i_lock); - spin_unlock(&inode_lock); + spin_unlock(&inode_hash_lock); schedule(); finish_wait(wq, &wait.wait); - spin_lock(&inode_lock); + spin_lock(&inode_hash_lock); } static __initdata unsigned long ihash_entries; diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c index fb3b3c5ef0ee..07ea8d3e6ea2 100644 --- a/fs/notify/inode_mark.c +++ b/fs/notify/inode_mark.c @@ -22,7 +22,6 @@ #include <linux/module.h> #include <linux/mutex.h> #include <linux/spinlock.h> -#include <linux/writeback.h> /* for inode_lock */ #include <asm/atomic.h> diff --git a/fs/notify/mark.c b/fs/notify/mark.c index 325185e514bb..50c00856f730 100644 --- a/fs/notify/mark.c +++ b/fs/notify/mark.c @@ -91,7 +91,6 @@ #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/srcu.h> -#include <linux/writeback.h> /* for inode_lock */ #include <asm/atomic.h> diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c index 85eebff6d0d7..e86577d6c5c3 100644 --- a/fs/notify/vfsmount_mark.c +++ b/fs/notify/vfsmount_mark.c @@ -23,7 +23,6 @@ #include <linux/mount.h> #include <linux/mutex.h> #include <linux/spinlock.h> -#include <linux/writeback.h> /* for inode_lock */ #include <asm/atomic.h> diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c index a627ed82c0a3..0b56c6b7ec01 100644 --- a/fs/ntfs/inode.c +++ b/fs/ntfs/inode.c @@ -54,7 +54,7 @@ * * Return 1 if the attributes match and 0 if not. * - * NOTE: This function runs with the inode_lock spin lock held so it is not + * NOTE: This function runs with the inode->i_lock spin lock held so it is not * allowed to sleep. */ int ntfs_test_inode(struct inode *vi, ntfs_attr *na) @@ -98,7 +98,7 @@ int ntfs_test_inode(struct inode *vi, ntfs_attr *na) * * Return 0 on success and -errno on error. * - * NOTE: This function runs with the inode_lock spin lock held so it is not + * NOTE: This function runs with the inode->i_lock spin lock held so it is not * allowed to sleep. (Hence the GFP_ATOMIC allocation.) */ static int ntfs_init_locked_inode(struct inode *vi, ntfs_attr *na) diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 3f5fee718329..17e7ccc322a5 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -9,7 +9,6 @@ struct backing_dev_info; -extern spinlock_t inode_lock; extern spinlock_t inode_wb_list_lock; /* -- cgit v1.2.3 From 0f1b1fd86f6fd662e04da3e82a6780b226fcd0d1 Mon Sep 17 00:00:00 2001 From: Dave Chinner <dchinner@redhat.com> Date: Tue, 22 Mar 2011 22:23:43 +1100 Subject: fs: pull inode->i_lock up out of writeback_single_inode First thing we do in writeback_single_inode() is take the i_lock and the last thing we do is drop it. A caller already holds the i_lock, so pull the i_lock out of writeback_single_inode() to reduce the round trips on this lock during inode writeback. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/fs-writeback.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index ed800656356b..b5ed541fb137 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -332,9 +332,9 @@ static void inode_wait_for_writeback(struct inode *inode) } /* - * Write out an inode's dirty pages. Called under inode_wb_list_lock. Either - * the caller has an active reference on the inode or the inode has I_WILL_FREE - * set. + * Write out an inode's dirty pages. Called under inode_wb_list_lock and + * inode->i_lock. Either the caller has an active reference on the inode or + * the inode has I_WILL_FREE set. * * If `wait' is set, wait on the writeout. * @@ -349,7 +349,9 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) unsigned dirty; int ret; - spin_lock(&inode->i_lock); + assert_spin_locked(&inode_wb_list_lock); + assert_spin_locked(&inode->i_lock); + if (!atomic_read(&inode->i_count)) WARN_ON(!(inode->i_state & (I_WILL_FREE|I_FREEING))); else @@ -365,7 +367,6 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) * completed a full scan of b_io. */ if (wbc->sync_mode != WB_SYNC_ALL) { - spin_unlock(&inode->i_lock); requeue_io(inode); return 0; } @@ -456,7 +457,6 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) } } inode_sync_complete(inode); - spin_unlock(&inode->i_lock); return ret; } @@ -544,7 +544,6 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb, } __iget(inode); - spin_unlock(&inode->i_lock); pages_skipped = wbc->pages_skipped; writeback_single_inode(inode, wbc); @@ -555,6 +554,7 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb, */ redirty_tail(inode); } + spin_unlock(&inode->i_lock); spin_unlock(&inode_wb_list_lock); iput(inode); cond_resched(); @@ -1309,7 +1309,9 @@ int write_inode_now(struct inode *inode, int sync) might_sleep(); spin_lock(&inode_wb_list_lock); + spin_lock(&inode->i_lock); ret = writeback_single_inode(inode, &wbc); + spin_unlock(&inode->i_lock); spin_unlock(&inode_wb_list_lock); if (sync) inode_sync_wait(inode); @@ -1333,7 +1335,9 @@ int sync_inode(struct inode *inode, struct writeback_control *wbc) int ret; spin_lock(&inode_wb_list_lock); + spin_lock(&inode->i_lock); ret = writeback_single_inode(inode, wbc); + spin_unlock(&inode->i_lock); spin_unlock(&inode_wb_list_lock); return ret; } -- cgit v1.2.3 From 0b2d0724e26a335cd326eb7ad552c109116a8795 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig <hch@infradead.org> Date: Wed, 23 Mar 2011 15:03:28 -0400 Subject: fs: simplify iget & friends Merge get_new_inode/get_new_inode_fast into iget5_locked/iget_locked as those were the only callers. Remove the internal ifind/ifind_fast helpers - ifind_fast only had a single caller, and ifind had two callers wanting it to do different things. Also clean up the comments in this area to focus on information important to a developer trying to use it, instead of overloading them with implementation details. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- fs/inode.c | 262 ++++++++++++++++++++----------------------------------------- 1 file changed, 83 insertions(+), 179 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index f9ee4928358f..05a1f75ae791 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -931,20 +931,42 @@ void unlock_new_inode(struct inode *inode) } EXPORT_SYMBOL(unlock_new_inode); -/* - * This is called without the inode hash lock held.. Be careful. +/** + * iget5_locked - obtain an inode from a mounted file system + * @sb: super block of file system + * @hashval: hash value (usually inode number) to get + * @test: callback used for comparisons between inodes + * @set: callback used to initialize a new struct inode + * @data: opaque data pointer to pass to @test and @set + * + * Search for the inode specified by @hashval and @data in the inode cache, + * and if present it is return it with an increased reference count. This is + * a generalized version of iget_locked() for file systems where the inode + * number is not sufficient for unique identification of an inode. + * + * If the inode is not in cache, allocate a new inode and return it locked, + * hashed, and with the I_NEW flag set. The file system gets to fill it in + * before unlocking it via unlock_new_inode(). * - * We no longer cache the sb_flags in i_flags - see fs.h - * -- rmk@arm.uk.linux.org + * Note both @test and @set are called with the inode_hash_lock held, so can't + * sleep. */ -static struct inode *get_new_inode(struct super_block *sb, - struct hlist_head *head, - int (*test)(struct inode *, void *), - int (*set)(struct inode *, void *), - void *data) +struct inode *iget5_locked(struct super_block *sb, unsigned long hashval, + int (*test)(struct inode *, void *), + int (*set)(struct inode *, void *), void *data) { + struct hlist_head *head = inode_hashtable + hash(sb, hashval); struct inode *inode; + spin_lock(&inode_hash_lock); + inode = find_inode(sb, head, test, data); + spin_unlock(&inode_hash_lock); + + if (inode) { + wait_on_inode(inode); + return inode; + } + inode = alloc_inode(sb); if (inode) { struct inode *old; @@ -986,16 +1008,34 @@ set_failed: destroy_inode(inode); return NULL; } +EXPORT_SYMBOL(iget5_locked); -/* - * get_new_inode_fast is the fast path version of get_new_inode, see the - * comment at iget_locked for details. +/** + * iget_locked - obtain an inode from a mounted file system + * @sb: super block of file system + * @ino: inode number to get + * + * Search for the inode specified by @ino in the inode cache and if present + * return it with an increased reference count. This is for file systems + * where the inode number is sufficient for unique identification of an inode. + * + * If the inode is not in cache, allocate a new inode and return it locked, + * hashed, and with the I_NEW flag set. The file system gets to fill it in + * before unlocking it via unlock_new_inode(). */ -static struct inode *get_new_inode_fast(struct super_block *sb, - struct hlist_head *head, unsigned long ino) +struct inode *iget_locked(struct super_block *sb, unsigned long ino) { + struct hlist_head *head = inode_hashtable + hash(sb, ino); struct inode *inode; + spin_lock(&inode_hash_lock); + inode = find_inode_fast(sb, head, ino); + spin_unlock(&inode_hash_lock); + if (inode) { + wait_on_inode(inode); + return inode; + } + inode = alloc_inode(sb); if (inode) { struct inode *old; @@ -1030,6 +1070,7 @@ static struct inode *get_new_inode_fast(struct super_block *sb, } return inode; } +EXPORT_SYMBOL(iget_locked); /* * search the inode cache for a matching inode number. @@ -1113,100 +1154,32 @@ struct inode *igrab(struct inode *inode) EXPORT_SYMBOL(igrab); /** - * ifind - internal function, you want ilookup5() or iget5(). + * ilookup5_nowait - search for an inode in the inode cache * @sb: super block of file system to search - * @head: the head of the list to search + * @hashval: hash value (usually inode number) to search for * @test: callback used for comparisons between inodes * @data: opaque data pointer to pass to @test - * @wait: if true wait for the inode to be unlocked, if false do not - * - * ifind() searches for the inode specified by @data in the inode - * cache. This is a generalized version of ifind_fast() for file systems where - * the inode number is not sufficient for unique identification of an inode. * + * Search for the inode specified by @hashval and @data in the inode cache. * If the inode is in the cache, the inode is returned with an incremented * reference count. * - * Otherwise NULL is returned. + * Note: I_NEW is not waited upon so you have to be very careful what you do + * with the returned inode. You probably should be using ilookup5() instead. * - * Note, @test is called with the inode_hash_lock held, so can't sleep. + * Note: @test is called with the inode_hash_lock held, so can't sleep. */ -static struct inode *ifind(struct super_block *sb, - struct hlist_head *head, int (*test)(struct inode *, void *), - void *data, const int wait) +struct inode *ilookup5_nowait(struct super_block *sb, unsigned long hashval, + int (*test)(struct inode *, void *), void *data) { + struct hlist_head *head = inode_hashtable + hash(sb, hashval); struct inode *inode; spin_lock(&inode_hash_lock); inode = find_inode(sb, head, test, data); - if (inode) { - spin_unlock(&inode_hash_lock); - if (likely(wait)) - wait_on_inode(inode); - return inode; - } - spin_unlock(&inode_hash_lock); - return NULL; -} - -/** - * ifind_fast - internal function, you want ilookup() or iget(). - * @sb: super block of file system to search - * @head: head of the list to search - * @ino: inode number to search for - * - * ifind_fast() searches for the inode @ino in the inode cache. This is for - * file systems where the inode number is sufficient for unique identification - * of an inode. - * - * If the inode is in the cache, the inode is returned with an incremented - * reference count. - * - * Otherwise NULL is returned. - */ -static struct inode *ifind_fast(struct super_block *sb, - struct hlist_head *head, unsigned long ino) -{ - struct inode *inode; - - spin_lock(&inode_hash_lock); - inode = find_inode_fast(sb, head, ino); - if (inode) { - spin_unlock(&inode_hash_lock); - wait_on_inode(inode); - return inode; - } spin_unlock(&inode_hash_lock); - return NULL; -} - -/** - * ilookup5_nowait - search for an inode in the inode cache - * @sb: super block of file system to search - * @hashval: hash value (usually inode number) to search for - * @test: callback used for comparisons between inodes - * @data: opaque data pointer to pass to @test - * - * ilookup5() uses ifind() to search for the inode specified by @hashval and - * @data in the inode cache. This is a generalized version of ilookup() for - * file systems where the inode number is not sufficient for unique - * identification of an inode. - * - * If the inode is in the cache, the inode is returned with an incremented - * reference count. Note, the inode lock is not waited upon so you have to be - * very careful what you do with the returned inode. You probably should be - * using ilookup5() instead. - * - * Otherwise NULL is returned. - * - * Note, @test is called with the inode_hash_lock held, so can't sleep. - */ -struct inode *ilookup5_nowait(struct super_block *sb, unsigned long hashval, - int (*test)(struct inode *, void *), void *data) -{ - struct hlist_head *head = inode_hashtable + hash(sb, hashval); - return ifind(sb, head, test, data, 0); + return inode; } EXPORT_SYMBOL(ilookup5_nowait); @@ -1217,24 +1190,24 @@ EXPORT_SYMBOL(ilookup5_nowait); * @test: callback used for comparisons between inodes * @data: opaque data pointer to pass to @test * - * ilookup5() uses ifind() to search for the inode specified by @hashval and - * @data in the inode cache. This is a generalized version of ilookup() for - * file systems where the inode number is not sufficient for unique - * identification of an inode. - * - * If the inode is in the cache, the inode lock is waited upon and the inode is + * Search for the inode specified by @hashval and @data in the inode cache, + * and if the inode is in the cache, return the inode with an incremented + * reference count. Waits on I_NEW before returning the inode. * returned with an incremented reference count. * - * Otherwise NULL is returned. + * This is a generalized version of ilookup() for file systems where the + * inode number is not sufficient for unique identification of an inode. * - * Note, @test is called with the inode_hash_lock held, so can't sleep. + * Note: @test is called with the inode_hash_lock held, so can't sleep. */ struct inode *ilookup5(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), void *data) { - struct hlist_head *head = inode_hashtable + hash(sb, hashval); + struct inode *inode = ilookup5_nowait(sb, hashval, test, data); - return ifind(sb, head, test, data, 1); + if (inode) + wait_on_inode(inode); + return inode; } EXPORT_SYMBOL(ilookup5); @@ -1243,92 +1216,23 @@ EXPORT_SYMBOL(ilookup5); * @sb: super block of file system to search * @ino: inode number to search for * - * ilookup() uses ifind_fast() to search for the inode @ino in the inode cache. - * This is for file systems where the inode number is sufficient for unique - * identification of an inode. - * - * If the inode is in the cache, the inode is returned with an incremented - * reference count. - * - * Otherwise NULL is returned. + * Search for the inode @ino in the inode cache, and if the inode is in the + * cache, the inode is returned with an incremented reference count. */ struct inode *ilookup(struct super_block *sb, unsigned long ino) { struct hlist_head *head = inode_hashtable + hash(sb, ino); - - return ifind_fast(sb, head, ino); -} -EXPORT_SYMBOL(ilookup); - -/** - * iget5_locked - obtain an inode from a mounted file system - * @sb: super block of file system - * @hashval: hash value (usually inode number) to get - * @test: callback used for comparisons between inodes - * @set: callback used to initialize a new struct inode - * @data: opaque data pointer to pass to @test and @set - * - * iget5_locked() uses ifind() to search for the inode specified by @hashval - * and @data in the inode cache and if present it is returned with an increased - * reference count. This is a generalized version of iget_locked() for file - * systems where the inode number is not sufficient for unique identification - * of an inode. - * - * If the inode is not in cache, get_new_inode() is called to allocate a new - * inode and this is returned locked, hashed, and with the I_NEW flag set. The - * file system gets to fill it in before unlocking it via unlock_new_inode(). - * - * Note both @test and @set are called with the inode_hash_lock held, so can't - * sleep. - */ -struct inode *iget5_locked(struct super_block *sb, unsigned long hashval, - int (*test)(struct inode *, void *), - int (*set)(struct inode *, void *), void *data) -{ - struct hlist_head *head = inode_hashtable + hash(sb, hashval); struct inode *inode; - inode = ifind(sb, head, test, data, 1); - if (inode) - return inode; - /* - * get_new_inode() will do the right thing, re-trying the search - * in case it had to block at any point. - */ - return get_new_inode(sb, head, test, set, data); -} -EXPORT_SYMBOL(iget5_locked); - -/** - * iget_locked - obtain an inode from a mounted file system - * @sb: super block of file system - * @ino: inode number to get - * - * iget_locked() uses ifind_fast() to search for the inode specified by @ino in - * the inode cache and if present it is returned with an increased reference - * count. This is for file systems where the inode number is sufficient for - * unique identification of an inode. - * - * If the inode is not in cache, get_new_inode_fast() is called to allocate a - * new inode and this is returned locked, hashed, and with the I_NEW flag set. - * The file system gets to fill it in before unlocking it via - * unlock_new_inode(). - */ -struct inode *iget_locked(struct super_block *sb, unsigned long ino) -{ - struct hlist_head *head = inode_hashtable + hash(sb, ino); - struct inode *inode; + spin_lock(&inode_hash_lock); + inode = find_inode_fast(sb, head, ino); + spin_unlock(&inode_hash_lock); - inode = ifind_fast(sb, head, ino); if (inode) - return inode; - /* - * get_new_inode_fast() will do the right thing, re-trying the search - * in case it had to block at any point. - */ - return get_new_inode_fast(sb, head, ino); + wait_on_inode(inode); + return inode; } -EXPORT_SYMBOL(iget_locked); +EXPORT_SYMBOL(ilookup); int insert_inode_locked(struct inode *inode) { -- cgit v1.2.3 From 30f5b28e7f937608e0407edaa459cc8161de81d9 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell <sfr@canb.auug.org.au> Date: Fri, 25 Mar 2011 12:30:05 +1100 Subject: [media] rc: update for bitop name changes Fix the following compile failure: drivers/media/rc/ite-cir.c: In function 'ite_decode_bytes': drivers/media/rc/ite-cir.c:190: error: implicit declaration of function 'generic_find_next_le_bit' drivers/media/rc/ite-cir.c:199: error: implicit declaration of function 'generic_find_next_zero_le_bit' Caused by commit 620a32bba4a2 ("[media] rc: New rc-based ite-cir driver for several ITE CIRs") interacting with commit c4945b9ed472 ("asm-generic: rename generic little-endian bitops functions"). Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- drivers/media/rc/ite-cir.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c index 9be6a830f1d2..ac0e42b47b2a 100644 --- a/drivers/media/rc/ite-cir.c +++ b/drivers/media/rc/ite-cir.c @@ -187,7 +187,7 @@ static void ite_decode_bytes(struct ite_dev *dev, const u8 * data, int sample_period = dev->params.sample_period; ldata = (unsigned long *)data; size = length << 3; - next_one = generic_find_next_le_bit(ldata, size, 0); + next_one = find_next_bit_le(ldata, size, 0); if (next_one > 0) { ev.pulse = true; ev.duration = @@ -196,14 +196,14 @@ static void ite_decode_bytes(struct ite_dev *dev, const u8 * data, int } while (next_one < size) { - next_zero = generic_find_next_zero_le_bit(ldata, size, next_one + 1); + next_zero = find_next_zero_bit_le(ldata, size, next_one + 1); ev.pulse = false; ev.duration = ITE_BITS_TO_NS(next_zero - next_one, sample_period); ir_raw_event_store_with_filter(dev->rdev, &ev); if (next_zero < size) { next_one = - generic_find_next_le_bit(ldata, + find_next_bit_le(ldata, size, next_zero + 1); ev.pulse = true; -- cgit v1.2.3 From 66d857b08b8c3ed5c72c361f863cce77d2a978d7 Mon Sep 17 00:00:00 2001 From: Greg Ungerer <gerg@uclinux.org> Date: Tue, 22 Mar 2011 13:39:27 +1000 Subject: m68k: merge m68k and m68knommu arch directories There is a lot of common code that could be shared between the m68k and m68knommu arch branches. It makes sense to merge the two branches into a single directory structure so that we can more easily share that common code. This is a brute force merge, based on a script from Stephen King <sfking@fdwdc.com>, which was originally written by Arnd Bergmann <arnd@arndb.de>. > The script was inspired by the script Sam Ravnborg used to merge the > includes from m68knommu. For those files common to both arches but > differing in content, the m68k version of the file is renamed to > <file>_mm.<ext> and the m68knommu version of the file is moved into the > corresponding m68k directory and renamed <file>_no.<ext> and a small > wrapper file <file>.<ext> is used to select between the two version. Files > that are common to both but don't differ are removed from the m68knommu > tree and files and directories that are unique to the m68knommu tree are > moved to the m68k tree. Finally, the arch/m68knommu tree is removed. > > To select between the the versions of the files, the wrapper uses > > #ifdef CONFIG_MMU > #include <file>_mm.<ext> > #else > #include <file>_no.<ext> > #endif On top of this file merge I have done a simplistic merge of m68k and m68knommu Kconfig, which primarily attempts to keep existing options and menus in place. Other than a handful of options being moved it produces identical .config outputs on m68k and m68knommu targets I tested it on. With this in place there is now quite a bit of scope for merge cleanups in future patches. Signed-off-by: Greg Ungerer <gerg@uclinux.org> --- arch/m68k/Kconfig | 456 +--- arch/m68k/Kconfig.debug | 34 + arch/m68k/Kconfig.mmu | 417 ++++ arch/m68k/Kconfig.nommu | 750 ++++++ arch/m68k/Makefile | 122 +- arch/m68k/Makefile_mm | 121 + arch/m68k/Makefile_no | 124 + arch/m68k/configs/m5208evb_defconfig | 76 + arch/m68k/configs/m5249evb_defconfig | 69 + arch/m68k/configs/m5272c3_defconfig | 67 + arch/m68k/configs/m5275evb_defconfig | 74 + arch/m68k/configs/m5307c3_defconfig | 77 + arch/m68k/configs/m5407c3_defconfig | 71 + arch/m68k/kernel/Makefile | 18 +- arch/m68k/kernel/Makefile_mm | 17 + arch/m68k/kernel/Makefile_no | 10 + arch/m68k/kernel/asm-offsets.c | 101 +- arch/m68k/kernel/asm-offsets_mm.c | 100 + arch/m68k/kernel/asm-offsets_no.c | 76 + arch/m68k/kernel/dma.c | 135 +- arch/m68k/kernel/dma_mm.c | 130 ++ arch/m68k/kernel/dma_no.c | 74 + arch/m68k/kernel/entry.S | 756 +----- arch/m68k/kernel/entry_mm.S | 753 ++++++ arch/m68k/kernel/entry_no.S | 134 ++ arch/m68k/kernel/init_task.c | 36 + arch/m68k/kernel/irq.c | 58 + arch/m68k/kernel/m68k_ksyms.c | 21 +- arch/m68k/kernel/m68k_ksyms_mm.c | 16 + arch/m68k/kernel/m68k_ksyms_no.c | 78 + arch/m68k/kernel/module.c | 156 +- arch/m68k/kernel/module_mm.c | 155 ++ arch/m68k/kernel/module_no.c | 126 + arch/m68k/kernel/process.c | 355 +-- arch/m68k/kernel/process_mm.c | 354 +++ arch/m68k/kernel/process_no.c | 404 ++++ arch/m68k/kernel/ptrace.c | 282 +-- arch/m68k/kernel/ptrace_mm.c | 277 +++ arch/m68k/kernel/ptrace_no.c | 255 ++ arch/m68k/kernel/setup.c | 534 +---- arch/m68k/kernel/setup_mm.c | 533 +++++ arch/m68k/kernel/setup_no.c | 317 +++ arch/m68k/kernel/signal.c | 1018 +------- arch/m68k/kernel/signal_mm.c | 1017 ++++++++ arch/m68k/kernel/signal_no.c | 765 ++++++ arch/m68k/kernel/sys_m68k.c | 551 +---- arch/m68k/kernel/sys_m68k_mm.c | 546 +++++ arch/m68k/kernel/sys_m68k_no.c | 94 + arch/m68k/kernel/syscalltable.S | 365 +++ arch/m68k/kernel/time.c | 119 +- arch/m68k/kernel/time_mm.c | 114 + arch/m68k/kernel/time_no.c | 87 + arch/m68k/kernel/traps.c | 1208 +--------- arch/m68k/kernel/traps_mm.c | 1207 ++++++++++ arch/m68k/kernel/traps_no.c | 365 +++ arch/m68k/kernel/vmlinux.lds.S | 11 +- arch/m68k/kernel/vmlinux.lds_mm.S | 10 + arch/m68k/kernel/vmlinux.lds_no.S | 188 ++ arch/m68k/lib/Makefile | 11 +- arch/m68k/lib/Makefile_mm | 6 + arch/m68k/lib/Makefile_no | 7 + arch/m68k/lib/checksum.c | 430 +--- arch/m68k/lib/checksum_mm.c | 425 ++++ arch/m68k/lib/checksum_no.c | 153 ++ arch/m68k/lib/delay.c | 21 + arch/m68k/lib/divsi3.S | 125 + arch/m68k/lib/memcpy.c | 62 + arch/m68k/lib/memmove.c | 105 + arch/m68k/lib/memset.c | 47 + arch/m68k/lib/modsi3.S | 113 + arch/m68k/lib/muldi3.c | 68 +- arch/m68k/lib/muldi3_mm.c | 63 + arch/m68k/lib/muldi3_no.c | 86 + arch/m68k/lib/mulsi3.S | 110 + arch/m68k/lib/udivsi3.S | 162 ++ arch/m68k/lib/umodsi3.S | 113 + arch/m68k/mm/Makefile | 13 +- arch/m68k/mm/Makefile_mm | 8 + arch/m68k/mm/Makefile_no | 5 + arch/m68k/mm/init.c | 153 +- arch/m68k/mm/init_mm.c | 150 ++ arch/m68k/mm/init_no.c | 193 ++ arch/m68k/mm/kmap.c | 368 +-- arch/m68k/mm/kmap_mm.c | 367 +++ arch/m68k/mm/kmap_no.c | 45 + arch/m68k/platform/5206/Makefile | 18 + arch/m68k/platform/5206/config.c | 121 + arch/m68k/platform/5206/gpio.c | 49 + arch/m68k/platform/5206e/Makefile | 18 + arch/m68k/platform/5206e/config.c | 127 + arch/m68k/platform/5206e/gpio.c | 49 + arch/m68k/platform/520x/Makefile | 17 + arch/m68k/platform/520x/config.c | 311 +++ arch/m68k/platform/520x/gpio.c | 211 ++ arch/m68k/platform/523x/Makefile | 17 + arch/m68k/platform/523x/config.c | 293 +++ arch/m68k/platform/523x/gpio.c | 284 +++ arch/m68k/platform/5249/Makefile | 18 + arch/m68k/platform/5249/config.c | 330 +++ arch/m68k/platform/5249/gpio.c | 65 + arch/m68k/platform/5249/intc2.c | 61 + arch/m68k/platform/5272/Makefile | 18 + arch/m68k/platform/5272/config.c | 176 ++ arch/m68k/platform/5272/gpio.c | 81 + arch/m68k/platform/5272/intc.c | 187 ++ arch/m68k/platform/527x/Makefile | 18 + arch/m68k/platform/527x/config.c | 384 +++ arch/m68k/platform/527x/gpio.c | 609 +++++ arch/m68k/platform/528x/Makefile | 18 + arch/m68k/platform/528x/config.c | 320 +++ arch/m68k/platform/528x/gpio.c | 438 ++++ arch/m68k/platform/5307/Makefile | 20 + arch/m68k/platform/5307/config.c | 147 ++ arch/m68k/platform/5307/gpio.c | 49 + arch/m68k/platform/5307/nettel.c | 153 ++ arch/m68k/platform/532x/Makefile | 18 + arch/m68k/platform/532x/config.c | 648 ++++++ arch/m68k/platform/532x/gpio.c | 337 +++ arch/m68k/platform/5407/Makefile | 18 + arch/m68k/platform/5407/config.c | 122 + arch/m68k/platform/5407/gpio.c | 49 + arch/m68k/platform/54xx/Makefile | 19 + arch/m68k/platform/54xx/config.c | 115 + arch/m68k/platform/54xx/firebee.c | 86 + arch/m68k/platform/68328/Makefile | 22 + arch/m68k/platform/68328/bootlogo.h | 270 +++ arch/m68k/platform/68328/bootlogo.pl | 10 + arch/m68k/platform/68328/config.c | 52 + arch/m68k/platform/68328/entry.S | 263 +++ arch/m68k/platform/68328/head-de2.S | 128 + arch/m68k/platform/68328/head-pilot.S | 222 ++ arch/m68k/platform/68328/head-ram.S | 141 ++ arch/m68k/platform/68328/head-rom.S | 110 + arch/m68k/platform/68328/ints.c | 186 ++ arch/m68k/platform/68328/romvec.S | 35 + arch/m68k/platform/68328/timers.c | 134 ++ arch/m68k/platform/68360/Makefile | 10 + arch/m68k/platform/68360/commproc.c | 308 +++ arch/m68k/platform/68360/config.c | 186 ++ arch/m68k/platform/68360/entry.S | 184 ++ arch/m68k/platform/68360/head-ram.S | 403 ++++ arch/m68k/platform/68360/head-rom.S | 414 ++++ arch/m68k/platform/68360/ints.c | 139 ++ arch/m68k/platform/68EZ328/Makefile | 11 + arch/m68k/platform/68EZ328/bootlogo.h | 3204 ++++++++++++++++++++++++++ arch/m68k/platform/68EZ328/config.c | 76 + arch/m68k/platform/68VZ328/Makefile | 16 + arch/m68k/platform/68VZ328/config.c | 188 ++ arch/m68k/platform/Makefile | 3 + arch/m68k/platform/coldfire/Makefile | 32 + arch/m68k/platform/coldfire/cache.c | 48 + arch/m68k/platform/coldfire/clk.c | 45 + arch/m68k/platform/coldfire/dma.c | 39 + arch/m68k/platform/coldfire/dma_timer.c | 84 + arch/m68k/platform/coldfire/entry.S | 203 ++ arch/m68k/platform/coldfire/gpio.c | 127 + arch/m68k/platform/coldfire/head.S | 250 ++ arch/m68k/platform/coldfire/intc-2.c | 214 ++ arch/m68k/platform/coldfire/intc-simr.c | 191 ++ arch/m68k/platform/coldfire/intc.c | 151 ++ arch/m68k/platform/coldfire/pinmux.c | 28 + arch/m68k/platform/coldfire/pit.c | 169 ++ arch/m68k/platform/coldfire/sltimers.c | 145 ++ arch/m68k/platform/coldfire/timers.c | 174 ++ arch/m68k/platform/coldfire/vectors.c | 80 + arch/m68knommu/Kconfig | 844 ------- arch/m68knommu/Kconfig.debug | 35 - arch/m68knommu/Makefile | 126 - arch/m68knommu/configs/m5208evb_defconfig | 74 - arch/m68knommu/configs/m5249evb_defconfig | 67 - arch/m68knommu/configs/m5272c3_defconfig | 65 - arch/m68knommu/configs/m5275evb_defconfig | 72 - arch/m68knommu/configs/m5307c3_defconfig | 75 - arch/m68knommu/configs/m5407c3_defconfig | 69 - arch/m68knommu/defconfig | 74 - arch/m68knommu/kernel/.gitignore | 1 - arch/m68knommu/kernel/Makefile | 10 - arch/m68knommu/kernel/asm-offsets.c | 76 - arch/m68knommu/kernel/dma.c | 74 - arch/m68knommu/kernel/entry.S | 134 -- arch/m68knommu/kernel/init_task.c | 36 - arch/m68knommu/kernel/irq.c | 58 - arch/m68knommu/kernel/m68k_ksyms.c | 78 - arch/m68knommu/kernel/module.c | 126 - arch/m68knommu/kernel/process.c | 404 ---- arch/m68knommu/kernel/ptrace.c | 255 -- arch/m68knommu/kernel/setup.c | 317 --- arch/m68knommu/kernel/signal.c | 765 ------ arch/m68knommu/kernel/sys_m68k.c | 94 - arch/m68knommu/kernel/syscalltable.S | 365 --- arch/m68knommu/kernel/time.c | 87 - arch/m68knommu/kernel/traps.c | 365 --- arch/m68knommu/kernel/vmlinux.lds.S | 188 -- arch/m68knommu/lib/Makefile | 7 - arch/m68knommu/lib/ashldi3.c | 62 - arch/m68knommu/lib/ashrdi3.c | 63 - arch/m68knommu/lib/checksum.c | 153 -- arch/m68knommu/lib/delay.c | 21 - arch/m68knommu/lib/divsi3.S | 125 - arch/m68knommu/lib/lshrdi3.c | 62 - arch/m68knommu/lib/memcpy.c | 62 - arch/m68knommu/lib/memmove.c | 105 - arch/m68knommu/lib/memset.c | 47 - arch/m68knommu/lib/modsi3.S | 113 - arch/m68knommu/lib/muldi3.c | 86 - arch/m68knommu/lib/mulsi3.S | 110 - arch/m68knommu/lib/udivsi3.S | 162 -- arch/m68knommu/lib/umodsi3.S | 113 - arch/m68knommu/mm/Makefile | 5 - arch/m68knommu/mm/init.c | 193 -- arch/m68knommu/mm/kmap.c | 45 - arch/m68knommu/platform/5206/Makefile | 18 - arch/m68knommu/platform/5206/config.c | 121 - arch/m68knommu/platform/5206/gpio.c | 49 - arch/m68knommu/platform/5206e/Makefile | 18 - arch/m68knommu/platform/5206e/config.c | 127 - arch/m68knommu/platform/5206e/gpio.c | 49 - arch/m68knommu/platform/520x/Makefile | 17 - arch/m68knommu/platform/520x/config.c | 311 --- arch/m68knommu/platform/520x/gpio.c | 211 -- arch/m68knommu/platform/523x/Makefile | 17 - arch/m68knommu/platform/523x/config.c | 293 --- arch/m68knommu/platform/523x/gpio.c | 284 --- arch/m68knommu/platform/5249/Makefile | 18 - arch/m68knommu/platform/5249/config.c | 330 --- arch/m68knommu/platform/5249/gpio.c | 65 - arch/m68knommu/platform/5249/intc2.c | 61 - arch/m68knommu/platform/5272/Makefile | 18 - arch/m68knommu/platform/5272/config.c | 176 -- arch/m68knommu/platform/5272/gpio.c | 81 - arch/m68knommu/platform/5272/intc.c | 187 -- arch/m68knommu/platform/527x/Makefile | 18 - arch/m68knommu/platform/527x/config.c | 384 --- arch/m68knommu/platform/527x/gpio.c | 609 ----- arch/m68knommu/platform/528x/Makefile | 18 - arch/m68knommu/platform/528x/config.c | 320 --- arch/m68knommu/platform/528x/gpio.c | 438 ---- arch/m68knommu/platform/5307/Makefile | 20 - arch/m68knommu/platform/5307/config.c | 147 -- arch/m68knommu/platform/5307/gpio.c | 49 - arch/m68knommu/platform/5307/nettel.c | 153 -- arch/m68knommu/platform/532x/Makefile | 18 - arch/m68knommu/platform/532x/config.c | 648 ------ arch/m68knommu/platform/532x/gpio.c | 337 --- arch/m68knommu/platform/5407/Makefile | 18 - arch/m68knommu/platform/5407/config.c | 122 - arch/m68knommu/platform/5407/gpio.c | 49 - arch/m68knommu/platform/54xx/Makefile | 19 - arch/m68knommu/platform/54xx/config.c | 115 - arch/m68knommu/platform/54xx/firebee.c | 86 - arch/m68knommu/platform/68328/Makefile | 22 - arch/m68knommu/platform/68328/bootlogo.h | 270 --- arch/m68knommu/platform/68328/bootlogo.pl | 10 - arch/m68knommu/platform/68328/config.c | 52 - arch/m68knommu/platform/68328/entry.S | 263 --- arch/m68knommu/platform/68328/head-de2.S | 128 - arch/m68knommu/platform/68328/head-pilot.S | 222 -- arch/m68knommu/platform/68328/head-ram.S | 141 -- arch/m68knommu/platform/68328/head-rom.S | 110 - arch/m68knommu/platform/68328/ints.c | 186 -- arch/m68knommu/platform/68328/romvec.S | 35 - arch/m68knommu/platform/68328/timers.c | 134 -- arch/m68knommu/platform/68360/Makefile | 10 - arch/m68knommu/platform/68360/commproc.c | 308 --- arch/m68knommu/platform/68360/config.c | 186 -- arch/m68knommu/platform/68360/entry.S | 184 -- arch/m68knommu/platform/68360/head-ram.S | 403 ---- arch/m68knommu/platform/68360/head-rom.S | 414 ---- arch/m68knommu/platform/68360/ints.c | 139 -- arch/m68knommu/platform/68EZ328/Makefile | 11 - arch/m68knommu/platform/68EZ328/bootlogo.h | 3204 -------------------------- arch/m68knommu/platform/68EZ328/config.c | 76 - arch/m68knommu/platform/68VZ328/Makefile | 16 - arch/m68knommu/platform/68VZ328/config.c | 188 -- arch/m68knommu/platform/Makefile | 3 - arch/m68knommu/platform/coldfire/Makefile | 32 - arch/m68knommu/platform/coldfire/cache.c | 48 - arch/m68knommu/platform/coldfire/clk.c | 45 - arch/m68knommu/platform/coldfire/dma.c | 39 - arch/m68knommu/platform/coldfire/dma_timer.c | 84 - arch/m68knommu/platform/coldfire/entry.S | 203 -- arch/m68knommu/platform/coldfire/gpio.c | 127 - arch/m68knommu/platform/coldfire/head.S | 250 -- arch/m68knommu/platform/coldfire/intc-2.c | 214 -- arch/m68knommu/platform/coldfire/intc-simr.c | 191 -- arch/m68knommu/platform/coldfire/intc.c | 151 -- arch/m68knommu/platform/coldfire/pinmux.c | 28 - arch/m68knommu/platform/coldfire/pit.c | 169 -- arch/m68knommu/platform/coldfire/sltimers.c | 145 -- arch/m68knommu/platform/coldfire/timers.c | 174 -- arch/m68knommu/platform/coldfire/vectors.c | 80 - 291 files changed, 27737 insertions(+), 27952 deletions(-) create mode 100644 arch/m68k/Kconfig.mmu create mode 100644 arch/m68k/Kconfig.nommu create mode 100644 arch/m68k/Makefile_mm create mode 100644 arch/m68k/Makefile_no create mode 100644 arch/m68k/configs/m5208evb_defconfig create mode 100644 arch/m68k/configs/m5249evb_defconfig create mode 100644 arch/m68k/configs/m5272c3_defconfig create mode 100644 arch/m68k/configs/m5275evb_defconfig create mode 100644 arch/m68k/configs/m5307c3_defconfig create mode 100644 arch/m68k/configs/m5407c3_defconfig create mode 100644 arch/m68k/kernel/Makefile_mm create mode 100644 arch/m68k/kernel/Makefile_no create mode 100644 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GENERIC_HARDIRQS_NO_DEPRECATED if !MMU config RWSEM_GENERIC_SPINLOCK bool @@ -34,457 +32,67 @@ config TIME_LOW_RES bool default y -config GENERIC_IOMAP - bool - default y - -config ARCH_MAY_HAVE_PC_FDC - bool - depends on BROKEN && (Q40 || SUN3X) - default y - config NO_IOPORT def_bool y config NO_DMA - def_bool SUN3 + def_bool (MMU && SUN3) || (!MMU && !COLDFIRE) +config ZONE_DMA + bool + default y config HZ int + default 1000 if CLEOPATRA default 100 -config ARCH_USES_GETTIMEOFFSET - def_bool y - source "init/Kconfig" source "kernel/Kconfig.freezer" -menu "Platform dependent setup" - -config EISA - bool - ---help--- - The Extended Industry Standard Architecture (EISA) bus was - developed as an open alternative to the IBM MicroChannel bus. - - The EISA bus provided some of the features of the IBM MicroChannel - bus while maintaining backward compatibility with cards made for - the older ISA bus. The EISA bus saw limited use between 1988 and - 1995 when it was made obsolete by the PCI bus. - - Say Y here if you are building a kernel for an EISA-based machine. - - Otherwise, say N. - -config MCA - bool - help - MicroChannel Architecture is found in some IBM PS/2 machines and - laptops. It is a bus system similar to PCI or ISA. See - <file:Documentation/mca.txt> (and especially the web page given - there) before attempting to build an MCA bus kernel. - -config PCMCIA - tristate - ---help--- - Say Y here if you want to attach PCMCIA- or PC-cards to your Linux - computer. These are credit-card size devices such as network cards, - modems or hard drives often used with laptops computers. There are - actually two varieties of these cards: the older 16 bit PCMCIA cards - and the newer 32 bit CardBus cards. If you want to use CardBus - cards, you need to say Y here and also to "CardBus support" below. - - To use your PC-cards, you will need supporting software from David - Hinds' pcmcia-cs package (see the file <file:Documentation/Changes> - for location). Please also read the PCMCIA-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - To compile this driver as modules, choose M here: the - modules will be called pcmcia_core and ds. - -config AMIGA - bool "Amiga support" - select MMU_MOTOROLA if MMU - help - This option enables support for the Amiga series of computers. If - you plan to use this kernel on an Amiga, say Y here and browse the - material available in <file:Documentation/m68k>; otherwise say N. - -config ATARI - bool "Atari support" - select MMU_MOTOROLA if MMU - help - This option enables support for the 68000-based Atari series of - computers (including the TT, Falcon and Medusa). If you plan to use - this kernel on an Atari, say Y here and browse the material - available in <file:Documentation/m68k>; otherwise say N. - -config MAC - bool "Macintosh support" - select MMU_MOTOROLA if MMU - help - This option enables support for the Apple Macintosh series of - computers (yes, there is experimental support now, at least for part - of the series). - - Say N unless you're willing to code the remaining necessary support. - ;) - -config NUBUS - bool - depends on MAC - default y - -config M68K_L2_CACHE - bool - depends on MAC - default y - -config APOLLO - bool "Apollo support" - select MMU_MOTOROLA if MMU - help - Say Y here if you want to run Linux on an MC680x0-based Apollo - Domain workstation such as the DN3500. - -config VME - bool "VME (Motorola and BVM) support" - select MMU_MOTOROLA if MMU - help - Say Y here if you want to build a kernel for a 680x0 based VME - board. Boards currently supported include Motorola boards MVME147, - MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and - BVME6000 boards from BVM Ltd are also supported. - -config MVME147 - bool "MVME147 support" - depends on VME - help - Say Y to include support for early Motorola VME boards. This will - build a kernel which can run on MVME147 single-board computers. If - you select this option you will have to select the appropriate - drivers for SCSI, Ethernet and serial ports later on. - -config MVME16x - bool "MVME162, 166 and 167 support" - depends on VME - help - Say Y to include support for Motorola VME boards. This will build a - kernel which can run on MVME162, MVME166, MVME167, MVME172, and - MVME177 boards. If you select this option you will have to select - the appropriate drivers for SCSI, Ethernet and serial ports later - on. - -config BVME6000 - bool "BVME4000 and BVME6000 support" - depends on VME - help - Say Y to include support for VME boards from BVM Ltd. This will - build a kernel which can run on BVME4000 and BVME6000 boards. If - you select this option you will have to select the appropriate - drivers for SCSI, Ethernet and serial ports later on. - -config HP300 - bool "HP9000/300 and HP9000/400 support" - select MMU_MOTOROLA if MMU - help - This option enables support for the HP9000/300 and HP9000/400 series - of workstations. Support for these machines is still somewhat - experimental. If you plan to try to use the kernel on such a machine - say Y here. - Everybody else says N. - -config DIO - bool "DIO bus support" - depends on HP300 +config MMU + bool "MMU-based Paged Memory Management Support" default y help - Say Y here to enable support for the "DIO" expansion bus used in - HP300 machines. If you are using such a system you almost certainly - want this. - -config SUN3X - bool "Sun3x support" - select MMU_MOTOROLA if MMU - select M68030 - help - This option enables support for the Sun 3x series of workstations. - Be warned that this support is very experimental. - Note that Sun 3x kernels are not compatible with Sun 3 hardware. - General Linux information on the Sun 3x series (now discontinued) - is at <http://www.angelfire.com/ca2/tech68k/sun3.html>. - - If you don't want to compile a kernel for a Sun 3x, say N. - -config Q40 - bool "Q40/Q60 support" - select MMU_MOTOROLA if MMU - help - The Q40 is a Motorola 68040-based successor to the Sinclair QL - manufactured in Germany. There is an official Q40 home page at - <http://www.q40.de/>. This option enables support for the Q40 and - Q60. Select your CPU below. For 68LC060 don't forget to enable FPU - emulation. - -config SUN3 - bool "Sun3 support" - depends on !MMU_MOTOROLA - select MMU_SUN3 if MMU - select M68020 - help - This option enables support for the Sun 3 series of workstations - (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires - that all other hardware types must be disabled, as Sun 3 kernels - are incompatible with all other m68k targets (including Sun 3x!). - - If you don't want to compile a kernel exclusively for a Sun 3, say N. - -config NATFEAT - bool "ARAnyM emulator support" - depends on ATARI - help - This option enables support for ARAnyM native features, such as - access to a disk image as /dev/hda. - -config NFBLOCK - tristate "NatFeat block device support" - depends on BLOCK && NATFEAT - help - Say Y to include support for the ARAnyM NatFeat block device - which allows direct access to the hard drives without using - the hardware emulation. - -config NFCON - tristate "NatFeat console driver" - depends on NATFEAT - help - Say Y to include support for the ARAnyM NatFeat console driver - which allows the console output to be redirected to the stderr - output of ARAnyM. - -config NFETH - tristate "NatFeat Ethernet support" - depends on NET_ETHERNET && NATFEAT - help - Say Y to include support for the ARAnyM NatFeat network device - which will emulate a regular ethernet device while presenting an - ethertap device to the host system. - -comment "Processor type" - -config M68020 - bool "68020 support" - help - If you anticipate running this kernel on a computer with a MC68020 - processor, say Y. Otherwise, say N. Note that the 68020 requires a - 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the - Sun 3, which provides its own version. - -config M68030 - bool "68030 support" - depends on !MMU_SUN3 - help - If you anticipate running this kernel on a computer with a MC68030 - processor, say Y. Otherwise, say N. Note that a MC68EC030 will not - work, as it does not include an MMU (Memory Management Unit). - -config M68040 - bool "68040 support" - depends on !MMU_SUN3 - help - If you anticipate running this kernel on a computer with a MC68LC040 - or MC68040 processor, say Y. Otherwise, say N. Note that an - MC68EC040 will not work, as it does not include an MMU (Memory - Management Unit). - -config M68060 - bool "68060 support" - depends on !MMU_SUN3 - help - If you anticipate running this kernel on a computer with a MC68060 - processor, say Y. Otherwise, say N. - -config MMU_MOTOROLA - bool - -config MMU_SUN3 - bool - depends on MMU && !MMU_MOTOROLA - -config M68KFPU_EMU - bool "Math emulation support (EXPERIMENTAL)" - depends on EXPERIMENTAL - help - At some point in the future, this will cause floating-point math - instructions to be emulated by the kernel on machines that lack a - floating-point math coprocessor. Thrill-seekers and chronically - sleep-deprived psychotic hacker types can say Y now, everyone else - should probably wait a while. - -config M68KFPU_EMU_EXTRAPREC - bool "Math emulation extra precision" - depends on M68KFPU_EMU - help - The fpu uses normally a few bit more during calculations for - correct rounding, the emulator can (often) do the same but this - extra calculation can cost quite some time, so you can disable - it here. The emulator will then "only" calculate with a 64 bit - mantissa and round slightly incorrect, what is more than enough - for normal usage. - -config M68KFPU_EMU_ONLY - bool "Math emulation only kernel" - depends on M68KFPU_EMU - help - This option prevents any floating-point instructions from being - compiled into the kernel, thereby the kernel doesn't save any - floating point context anymore during task switches, so this - kernel will only be usable on machines without a floating-point - math coprocessor. This makes the kernel a bit faster as no tests - needs to be executed whether a floating-point instruction in the - kernel should be executed or not. - -config ADVANCED - bool "Advanced configuration options" - ---help--- - This gives you access to some advanced options for the CPU. The - defaults should be fine for most users, but these options may make - it possible for you to improve performance somewhat if you know what - you are doing. - - Note that the answer to this question won't directly affect the - kernel: saying N will just cause the configurator to skip all - the questions about these options. + Select if you want MMU-based virtualised addressing space + support by paged memory management. If unsure, say 'Y'. - Most users should say N to this question. - -config RMW_INSNS - bool "Use read-modify-write instructions" - depends on ADVANCED - ---help--- - This allows to use certain instructions that work with indivisible - read-modify-write bus cycles. While this is faster than the - workaround of disabling interrupts, it can conflict with DMA - ( = direct memory access) on many Amiga systems, and it is also said - to destabilize other machines. It is very likely that this will - cause serious problems on any Amiga or Atari Medusa if set. The only - configuration where it should work are 68030-based Ataris, where it - apparently improves performance. But you've been warned! Unless you - really know what you are doing, say N. Try Y only if you're quite - adventurous. - -config SINGLE_MEMORY_CHUNK - bool "Use one physical chunk of memory only" if ADVANCED && !SUN3 - default y if SUN3 - select NEED_MULTIPLE_NODES - help - Ignore all but the first contiguous chunk of physical memory for VM - purposes. This will save a few bytes kernel size and may speed up - some operations. Say N if not sure. +menu "Platform dependent setup" -config 060_WRITETHROUGH - bool "Use write-through caching for 68060 supervisor accesses" - depends on ADVANCED && M68060 - ---help--- - The 68060 generally uses copyback caching of recently accessed data. - Copyback caching means that memory writes will be held in an on-chip - cache and only written back to memory some time later. Saying Y - here will force supervisor (kernel) accesses to use writethrough - caching. Writethrough caching means that data is written to memory - straight away, so that cache and memory data always agree. - Writethrough caching is less efficient, but is needed for some - drivers on 68060 based systems where the 68060 bus snooping signal - is hardwired on. The 53c710 SCSI driver is known to suffer from - this problem. - -config ARCH_DISCONTIGMEM_ENABLE - def_bool !SINGLE_MEMORY_CHUNK - -config NODES_SHIFT - int - default "3" - depends on !SINGLE_MEMORY_CHUNK +if MMU +source arch/m68k/Kconfig.mmu +endif +if !MMU +source arch/m68k/Kconfig.nommu +endif source "mm/Kconfig" endmenu -menu "General setup" +menu "Executable file formats" source "fs/Kconfig.binfmt" -config ZORRO - bool "Amiga Zorro (AutoConfig) bus support" - depends on AMIGA - help - This enables support for the Zorro bus in the Amiga. If you have - expansion cards in your Amiga that conform to the Amiga - AutoConfig(tm) specification, say Y, otherwise N. Note that even - expansion cards that do not fit in the Zorro slots but fit in e.g. - the CPU slot may fall in this category, so you have to say Y to let - Linux use these. - -config AMIGA_PCMCIA - bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)" - depends on AMIGA && EXPERIMENTAL - help - Include support in the kernel for pcmcia on Amiga 1200 and Amiga - 600. If you intend to use pcmcia cards say Y; otherwise say N. - -config STRAM_PROC - bool "ST-RAM statistics in /proc" - depends on ATARI - help - Say Y here to report ST-RAM usage statistics in /proc/stram. - -config HEARTBEAT - bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40 - default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300 - help - Use the power-on LED on your machine as a load meter. The exact - behavior is platform-dependent, but normally the flash frequency is - a hyperbolic function of the 5-minute load average. - -# We have a dedicated heartbeat LED. :-) -config PROC_HARDWARE - bool "/proc/hardware support" - help - Say Y here to support the /proc/hardware file, which gives you - access to information about the machine you're running on, - including the model, CPU, MMU, clock speed, BogoMIPS rating, - and memory size. - -config ISA - bool - depends on Q40 || AMIGA_PCMCIA - default y - help - Find out whether you have ISA slots on your motherboard. ISA is the - name of a bus system, i.e. the way the CPU talks to the other stuff - inside your box. Other bus systems are PCI, EISA, MicroChannel - (MCA) or VESA. ISA is an older system, now being displaced by PCI; - newer boards don't support it. If you have ISA, say Y, otherwise N. - -config GENERIC_ISA_DMA - bool - depends on Q40 || AMIGA_PCMCIA - default y - -config ZONE_DMA - bool - default y +endmenu -source "drivers/pci/Kconfig" +if !MMU +menu "Power management options" -source "drivers/zorro/Kconfig" +config PM + bool "Power Management support" + help + Support processor power management modes endmenu +endif source "net/Kconfig" source "drivers/Kconfig" +if MMU + menu "Character devices" config ATARI_MFPSER @@ -627,6 +235,8 @@ config SERIAL_CONSOLE endmenu +endif + source "fs/Kconfig" source "arch/m68k/Kconfig.debug" diff --git a/arch/m68k/Kconfig.debug b/arch/m68k/Kconfig.debug index f53b6d5300e5..2bdb1b01115c 100644 --- a/arch/m68k/Kconfig.debug +++ b/arch/m68k/Kconfig.debug @@ -2,4 +2,38 @@ menu "Kernel hacking" source "lib/Kconfig.debug" +if !MMU + +config FULLDEBUG + bool "Full Symbolic/Source Debugging support" + help + Enable debugging symbols on kernel build. + +config HIGHPROFILE + bool "Use fast second timer for profiling" + depends on COLDFIRE + help + Use a fast secondary clock to produce profiling information. + +config BOOTPARAM + bool 'Compiled-in Kernel Boot Parameter' + +config BOOTPARAM_STRING + string 'Kernel Boot Parameter' + default 'console=ttyS0,19200' + depends on BOOTPARAM + +config NO_KERNEL_MSG + bool "Suppress Kernel BUG Messages" + help + Do not output any debug BUG messages within the kernel. + +config BDM_DISABLE + bool "Disable BDM signals" + depends on (EXPERIMENTAL && COLDFIRE) + help + Disable the ColdFire CPU's BDM signals. + +endif + endmenu diff --git a/arch/m68k/Kconfig.mmu b/arch/m68k/Kconfig.mmu new file mode 100644 index 000000000000..16539b1d5d3a --- /dev/null +++ b/arch/m68k/Kconfig.mmu @@ -0,0 +1,417 @@ +config GENERIC_IOMAP + bool + default y + +config ARCH_MAY_HAVE_PC_FDC + bool + depends on BROKEN && (Q40 || SUN3X) + default y + +config ARCH_USES_GETTIMEOFFSET + def_bool y + +config EISA + bool + ---help--- + The Extended Industry Standard Architecture (EISA) bus was + developed as an open alternative to the IBM MicroChannel bus. + + The EISA bus provided some of the features of the IBM MicroChannel + bus while maintaining backward compatibility with cards made for + the older ISA bus. The EISA bus saw limited use between 1988 and + 1995 when it was made obsolete by the PCI bus. + + Say Y here if you are building a kernel for an EISA-based machine. + + Otherwise, say N. + +config MCA + bool + help + MicroChannel Architecture is found in some IBM PS/2 machines and + laptops. It is a bus system similar to PCI or ISA. See + <file:Documentation/mca.txt> (and especially the web page given + there) before attempting to build an MCA bus kernel. + +config PCMCIA + tristate + ---help--- + Say Y here if you want to attach PCMCIA- or PC-cards to your Linux + computer. These are credit-card size devices such as network cards, + modems or hard drives often used with laptops computers. There are + actually two varieties of these cards: the older 16 bit PCMCIA cards + and the newer 32 bit CardBus cards. If you want to use CardBus + cards, you need to say Y here and also to "CardBus support" below. + + To use your PC-cards, you will need supporting software from David + Hinds' pcmcia-cs package (see the file <file:Documentation/Changes> + for location). Please also read the PCMCIA-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as modules, choose M here: the + modules will be called pcmcia_core and ds. + +config AMIGA + bool "Amiga support" + select MMU_MOTOROLA if MMU + help + This option enables support for the Amiga series of computers. If + you plan to use this kernel on an Amiga, say Y here and browse the + material available in <file:Documentation/m68k>; otherwise say N. + +config ATARI + bool "Atari support" + select MMU_MOTOROLA if MMU + help + This option enables support for the 68000-based Atari series of + computers (including the TT, Falcon and Medusa). If you plan to use + this kernel on an Atari, say Y here and browse the material + available in <file:Documentation/m68k>; otherwise say N. + +config MAC + bool "Macintosh support" + select MMU_MOTOROLA if MMU + help + This option enables support for the Apple Macintosh series of + computers (yes, there is experimental support now, at least for part + of the series). + + Say N unless you're willing to code the remaining necessary support. + ;) + +config NUBUS + bool + depends on MAC + default y + +config M68K_L2_CACHE + bool + depends on MAC + default y + +config APOLLO + bool "Apollo support" + select MMU_MOTOROLA if MMU + help + Say Y here if you want to run Linux on an MC680x0-based Apollo + Domain workstation such as the DN3500. + +config VME + bool "VME (Motorola and BVM) support" + select MMU_MOTOROLA if MMU + help + Say Y here if you want to build a kernel for a 680x0 based VME + board. Boards currently supported include Motorola boards MVME147, + MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and + BVME6000 boards from BVM Ltd are also supported. + +config MVME147 + bool "MVME147 support" + depends on VME + help + Say Y to include support for early Motorola VME boards. This will + build a kernel which can run on MVME147 single-board computers. If + you select this option you will have to select the appropriate + drivers for SCSI, Ethernet and serial ports later on. + +config MVME16x + bool "MVME162, 166 and 167 support" + depends on VME + help + Say Y to include support for Motorola VME boards. This will build a + kernel which can run on MVME162, MVME166, MVME167, MVME172, and + MVME177 boards. If you select this option you will have to select + the appropriate drivers for SCSI, Ethernet and serial ports later + on. + +config BVME6000 + bool "BVME4000 and BVME6000 support" + depends on VME + help + Say Y to include support for VME boards from BVM Ltd. This will + build a kernel which can run on BVME4000 and BVME6000 boards. If + you select this option you will have to select the appropriate + drivers for SCSI, Ethernet and serial ports later on. + +config HP300 + bool "HP9000/300 and HP9000/400 support" + select MMU_MOTOROLA if MMU + help + This option enables support for the HP9000/300 and HP9000/400 series + of workstations. Support for these machines is still somewhat + experimental. If you plan to try to use the kernel on such a machine + say Y here. + Everybody else says N. + +config DIO + bool "DIO bus support" + depends on HP300 + default y + help + Say Y here to enable support for the "DIO" expansion bus used in + HP300 machines. If you are using such a system you almost certainly + want this. + +config SUN3X + bool "Sun3x support" + select MMU_MOTOROLA if MMU + select M68030 + help + This option enables support for the Sun 3x series of workstations. + Be warned that this support is very experimental. + Note that Sun 3x kernels are not compatible with Sun 3 hardware. + General Linux information on the Sun 3x series (now discontinued) + is at <http://www.angelfire.com/ca2/tech68k/sun3.html>. + + If you don't want to compile a kernel for a Sun 3x, say N. + +config Q40 + bool "Q40/Q60 support" + select MMU_MOTOROLA if MMU + help + The Q40 is a Motorola 68040-based successor to the Sinclair QL + manufactured in Germany. There is an official Q40 home page at + <http://www.q40.de/>. This option enables support for the Q40 and + Q60. Select your CPU below. For 68LC060 don't forget to enable FPU + emulation. + +config SUN3 + bool "Sun3 support" + depends on !MMU_MOTOROLA + select MMU_SUN3 if MMU + select M68020 + help + This option enables support for the Sun 3 series of workstations + (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires + that all other hardware types must be disabled, as Sun 3 kernels + are incompatible with all other m68k targets (including Sun 3x!). + + If you don't want to compile a kernel exclusively for a Sun 3, say N. + +config NATFEAT + bool "ARAnyM emulator support" + depends on ATARI + help + This option enables support for ARAnyM native features, such as + access to a disk image as /dev/hda. + +config NFBLOCK + tristate "NatFeat block device support" + depends on BLOCK && NATFEAT + help + Say Y to include support for the ARAnyM NatFeat block device + which allows direct access to the hard drives without using + the hardware emulation. + +config NFCON + tristate "NatFeat console driver" + depends on NATFEAT + help + Say Y to include support for the ARAnyM NatFeat console driver + which allows the console output to be redirected to the stderr + output of ARAnyM. + +config NFETH + tristate "NatFeat Ethernet support" + depends on NET_ETHERNET && NATFEAT + help + Say Y to include support for the ARAnyM NatFeat network device + which will emulate a regular ethernet device while presenting an + ethertap device to the host system. + +comment "Processor type" + +config M68020 + bool "68020 support" + help + If you anticipate running this kernel on a computer with a MC68020 + processor, say Y. Otherwise, say N. Note that the 68020 requires a + 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the + Sun 3, which provides its own version. + +config M68030 + bool "68030 support" + depends on !MMU_SUN3 + help + If you anticipate running this kernel on a computer with a MC68030 + processor, say Y. Otherwise, say N. Note that a MC68EC030 will not + work, as it does not include an MMU (Memory Management Unit). + +config M68040 + bool "68040 support" + depends on !MMU_SUN3 + help + If you anticipate running this kernel on a computer with a MC68LC040 + or MC68040 processor, say Y. Otherwise, say N. Note that an + MC68EC040 will not work, as it does not include an MMU (Memory + Management Unit). + +config M68060 + bool "68060 support" + depends on !MMU_SUN3 + help + If you anticipate running this kernel on a computer with a MC68060 + processor, say Y. Otherwise, say N. + +config MMU_MOTOROLA + bool + +config MMU_SUN3 + bool + depends on MMU && !MMU_MOTOROLA + +config M68KFPU_EMU + bool "Math emulation support (EXPERIMENTAL)" + depends on EXPERIMENTAL + help + At some point in the future, this will cause floating-point math + instructions to be emulated by the kernel on machines that lack a + floating-point math coprocessor. Thrill-seekers and chronically + sleep-deprived psychotic hacker types can say Y now, everyone else + should probably wait a while. + +config M68KFPU_EMU_EXTRAPREC + bool "Math emulation extra precision" + depends on M68KFPU_EMU + help + The fpu uses normally a few bit more during calculations for + correct rounding, the emulator can (often) do the same but this + extra calculation can cost quite some time, so you can disable + it here. The emulator will then "only" calculate with a 64 bit + mantissa and round slightly incorrect, what is more than enough + for normal usage. + +config M68KFPU_EMU_ONLY + bool "Math emulation only kernel" + depends on M68KFPU_EMU + help + This option prevents any floating-point instructions from being + compiled into the kernel, thereby the kernel doesn't save any + floating point context anymore during task switches, so this + kernel will only be usable on machines without a floating-point + math coprocessor. This makes the kernel a bit faster as no tests + needs to be executed whether a floating-point instruction in the + kernel should be executed or not. + +config ADVANCED + bool "Advanced configuration options" + ---help--- + This gives you access to some advanced options for the CPU. The + defaults should be fine for most users, but these options may make + it possible for you to improve performance somewhat if you know what + you are doing. + + Note that the answer to this question won't directly affect the + kernel: saying N will just cause the configurator to skip all + the questions about these options. + + Most users should say N to this question. + +config RMW_INSNS + bool "Use read-modify-write instructions" + depends on ADVANCED + ---help--- + This allows to use certain instructions that work with indivisible + read-modify-write bus cycles. While this is faster than the + workaround of disabling interrupts, it can conflict with DMA + ( = direct memory access) on many Amiga systems, and it is also said + to destabilize other machines. It is very likely that this will + cause serious problems on any Amiga or Atari Medusa if set. The only + configuration where it should work are 68030-based Ataris, where it + apparently improves performance. But you've been warned! Unless you + really know what you are doing, say N. Try Y only if you're quite + adventurous. + +config SINGLE_MEMORY_CHUNK + bool "Use one physical chunk of memory only" if ADVANCED && !SUN3 + default y if SUN3 + select NEED_MULTIPLE_NODES + help + Ignore all but the first contiguous chunk of physical memory for VM + purposes. This will save a few bytes kernel size and may speed up + some operations. Say N if not sure. + +config 060_WRITETHROUGH + bool "Use write-through caching for 68060 supervisor accesses" + depends on ADVANCED && M68060 + ---help--- + The 68060 generally uses copyback caching of recently accessed data. + Copyback caching means that memory writes will be held in an on-chip + cache and only written back to memory some time later. Saying Y + here will force supervisor (kernel) accesses to use writethrough + caching. Writethrough caching means that data is written to memory + straight away, so that cache and memory data always agree. + Writethrough caching is less efficient, but is needed for some + drivers on 68060 based systems where the 68060 bus snooping signal + is hardwired on. The 53c710 SCSI driver is known to suffer from + this problem. + +config ARCH_DISCONTIGMEM_ENABLE + def_bool !SINGLE_MEMORY_CHUNK + +config NODES_SHIFT + int + default "3" + depends on !SINGLE_MEMORY_CHUNK + +config ZORRO + bool "Amiga Zorro (AutoConfig) bus support" + depends on AMIGA + help + This enables support for the Zorro bus in the Amiga. If you have + expansion cards in your Amiga that conform to the Amiga + AutoConfig(tm) specification, say Y, otherwise N. Note that even + expansion cards that do not fit in the Zorro slots but fit in e.g. + the CPU slot may fall in this category, so you have to say Y to let + Linux use these. + +config AMIGA_PCMCIA + bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)" + depends on AMIGA && EXPERIMENTAL + help + Include support in the kernel for pcmcia on Amiga 1200 and Amiga + 600. If you intend to use pcmcia cards say Y; otherwise say N. + +config STRAM_PROC + bool "ST-RAM statistics in /proc" + depends on ATARI + help + Say Y here to report ST-RAM usage statistics in /proc/stram. + +config HEARTBEAT + bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40 + default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300 + help + Use the power-on LED on your machine as a load meter. The exact + behavior is platform-dependent, but normally the flash frequency is + a hyperbolic function of the 5-minute load average. + +# We have a dedicated heartbeat LED. :-) +config PROC_HARDWARE + bool "/proc/hardware support" + help + Say Y here to support the /proc/hardware file, which gives you + access to information about the machine you're running on, + including the model, CPU, MMU, clock speed, BogoMIPS rating, + and memory size. + +config ISA + bool + depends on Q40 || AMIGA_PCMCIA + default y + help + Find out whether you have ISA slots on your motherboard. ISA is the + name of a bus system, i.e. the way the CPU talks to the other stuff + inside your box. Other bus systems are PCI, EISA, MicroChannel + (MCA) or VESA. ISA is an older system, now being displaced by PCI; + newer boards don't support it. If you have ISA, say Y, otherwise N. + +config GENERIC_ISA_DMA + bool + depends on Q40 || AMIGA_PCMCIA + default y + +source "drivers/pci/Kconfig" + +source "drivers/zorro/Kconfig" + diff --git a/arch/m68k/Kconfig.nommu b/arch/m68k/Kconfig.nommu new file mode 100644 index 000000000000..273bccab9517 --- /dev/null +++ b/arch/m68k/Kconfig.nommu @@ -0,0 +1,750 @@ +config FPU + bool + default n + +config GENERIC_FIND_NEXT_BIT + bool + default y + +config GENERIC_GPIO + bool + default n + +config GENERIC_CMOS_UPDATE + bool + default y + +config GENERIC_CLOCKEVENTS + bool + default n + +config COLDFIRE_SW_A7 + bool + default n + +config HAVE_CACHE_SPLIT + bool + +config HAVE_CACHE_CB + bool + +config HAVE_MBAR + bool + +config HAVE_IPSBAR + bool + +choice + prompt "CPU" + default M68EZ328 + +config M68328 + bool "MC68328" + help + Motorola 68328 processor support. + +config M68EZ328 + bool "MC68EZ328" + help + Motorola 68EX328 processor support. + +config M68VZ328 + bool "MC68VZ328" + help + Motorola 68VZ328 processor support. + +config M68360 + bool "MC68360" + help + Motorola 68360 processor support. + +config M5206 + bool "MCF5206" + select COLDFIRE_SW_A7 + select HAVE_MBAR + help + Motorola ColdFire 5206 processor support. + +config M5206e + bool "MCF5206e" + select COLDFIRE_SW_A7 + select HAVE_MBAR + help + Motorola ColdFire 5206e processor support. + +config M520x + bool "MCF520x" + select GENERIC_CLOCKEVENTS + select HAVE_CACHE_SPLIT + help + Freescale Coldfire 5207/5208 processor support. + +config M523x + bool "MCF523x" + select GENERIC_CLOCKEVENTS + select HAVE_CACHE_SPLIT + select HAVE_IPSBAR + help + Freescale Coldfire 5230/1/2/4/5 processor support + +config M5249 + bool "MCF5249" + select COLDFIRE_SW_A7 + select HAVE_MBAR + help + Motorola ColdFire 5249 processor support. + +config M5271 + bool "MCF5271" + select HAVE_CACHE_SPLIT + select HAVE_IPSBAR + help + Freescale (Motorola) ColdFire 5270/5271 processor support. + +config M5272 + bool "MCF5272" + select COLDFIRE_SW_A7 + select HAVE_MBAR + help + Motorola ColdFire 5272 processor support. + +config M5275 + bool "MCF5275" + select HAVE_CACHE_SPLIT + select HAVE_IPSBAR + help + Freescale (Motorola) ColdFire 5274/5275 processor support. + +config M528x + bool "MCF528x" + select GENERIC_CLOCKEVENTS + select HAVE_CACHE_SPLIT + select HAVE_IPSBAR + help + Motorola ColdFire 5280/5282 processor support. + +config M5307 + bool "MCF5307" + select COLDFIRE_SW_A7 + select HAVE_CACHE_CB + select HAVE_MBAR + help + Motorola ColdFire 5307 processor support. + +config M532x + bool "MCF532x" + select HAVE_CACHE_CB + help + Freescale (Motorola) ColdFire 532x processor support. + +config M5407 + bool "MCF5407" + select COLDFIRE_SW_A7 + select HAVE_CACHE_CB + select HAVE_MBAR + help + Motorola ColdFire 5407 processor support. + +config M547x + bool "MCF547x" + select HAVE_CACHE_CB + select HAVE_MBAR + help + Freescale ColdFire 5470/5471/5472/5473/5474/5475 processor support. + +config M548x + bool "MCF548x" + select HAVE_CACHE_CB + select HAVE_MBAR + help + Freescale ColdFire 5480/5481/5482/5483/5484/5485 processor support. + +endchoice + +config M527x + bool + depends on (M5271 || M5275) + select GENERIC_CLOCKEVENTS + default y + +config M54xx + bool + depends on (M548x || M547x) + default y + +config COLDFIRE + bool + depends on (M5206 || M5206e || M520x || M523x || M5249 || M527x || M5272 || M528x || M5307 || M532x || M5407 || M54xx) + select GENERIC_GPIO + select ARCH_REQUIRE_GPIOLIB + default y + +config CLOCK_SET + bool "Enable setting the CPU clock frequency" + default n + help + On some CPU's you do not need to know what the core CPU clock + frequency is. On these you can disable clock setting. On some + traditional 68K parts, and on all ColdFire parts you need to set + the appropriate CPU clock frequency. On these devices many of the + onboard peripherals derive their timing from the master CPU clock + frequency. + +config CLOCK_FREQ + int "Set the core clock frequency" + default "66666666" + depends on CLOCK_SET + help + Define the CPU clock frequency in use. This is the core clock + frequency, it may or may not be the same as the external clock + crystal fitted to your board. Some processors have an internal + PLL and can have their frequency programmed at run time, others + use internal dividers. In general the kernel won't setup a PLL + if it is fitted (there are some exceptions). This value will be + specific to the exact CPU that you are using. + +config OLDMASK + bool "Old mask 5307 (1H55J) silicon" + depends on M5307 + help + Build support for the older revision ColdFire 5307 silicon. + Specifically this is the 1H55J mask revision. + +if HAVE_CACHE_SPLIT +choice + prompt "Split Cache Configuration" + default CACHE_I + +config CACHE_I + bool "Instruction" + help + Use all of the ColdFire CPU cache memory as an instruction cache. + +config CACHE_D + bool "Data" + help + Use all of the ColdFire CPU cache memory as a data cache. + +config CACHE_BOTH + bool "Both" + help + Split the ColdFire CPU cache, and use half as an instruction cache + and half as a data cache. +endchoice +endif + +if HAVE_CACHE_CB +choice + prompt "Data cache mode" + default CACHE_WRITETHRU + +config CACHE_WRITETHRU + bool "Write-through" + help + The ColdFire CPU cache is set into Write-through mode. + +config CACHE_COPYBACK + bool "Copy-back" + help + The ColdFire CPU cache is set into Copy-back mode. +endchoice +endif + +comment "Platform" + +config PILOT3 + bool "Pilot 1000/5000, PalmPilot Personal/Pro, or PalmIII support" + depends on M68328 + help + Support for the Palm Pilot 1000/5000, Personal/Pro and PalmIII. + +config XCOPILOT_BUGS + bool "(X)Copilot support" + depends on PILOT3 + help + Support the bugs of Xcopilot. + +config UC5272 + bool 'Arcturus Networks uC5272 dimm board support' + depends on M5272 + help + Support for the Arcturus Networks uC5272 dimm board. + +config UC5282 + bool "Arcturus Networks uC5282 board support" + depends on M528x + help + Support for the Arcturus Networks uC5282 dimm board. + +config UCSIMM + bool "uCsimm module support" + depends on M68EZ328 + help + Support for the Arcturus Networks uCsimm module. + +config UCDIMM + bool "uDsimm module support" + depends on M68VZ328 + help + Support for the Arcturus Networks uDsimm module. + +config DRAGEN2 + bool "DragenEngine II board support" + depends on M68VZ328 + help + Support for the DragenEngine II board. + +config DIRECT_IO_ACCESS + bool "Allow user to access IO directly" + depends on (UCSIMM || UCDIMM || DRAGEN2) + help + Disable the CPU internal registers protection in user mode, + to allow a user application to read/write them. + +config INIT_LCD + bool "Initialize LCD" + depends on (UCSIMM || UCDIMM || DRAGEN2) + help + Initialize the LCD controller of the 68x328 processor. + +config MEMORY_RESERVE + int "Memory reservation (MiB)" + depends on (UCSIMM || UCDIMM) + help + Reserve certain memory regions on 68x328 based boards. + +config UCQUICC + bool "Lineo uCquicc board support" + depends on M68360 + help + Support for the Lineo uCquicc board. + +config ARN5206 + bool "Arnewsh 5206 board support" + depends on M5206 + help + Support for the Arnewsh 5206 board. + +config M5206eC3 + bool "Motorola M5206eC3 board support" + depends on M5206e + help + Support for the Motorola M5206eC3 board. + +config ELITE + bool "Motorola M5206eLITE board support" + depends on M5206e + help + Support for the Motorola M5206eLITE board. + +config M5208EVB + bool "Freescale M5208EVB board support" + depends on M520x + help + Support for the Freescale Coldfire M5208EVB. + +config M5235EVB + bool "Freescale M5235EVB support" + depends on M523x + help + Support for the Freescale M5235EVB board. + +config M5249C3 + bool "Motorola M5249C3 board support" + depends on M5249 + help + Support for the Motorola M5249C3 board. + +config M5271EVB + bool "Freescale (Motorola) M5271EVB board support" + depends on M5271 + help + Support for the Freescale (Motorola) M5271EVB board. + +config M5275EVB + bool "Freescale (Motorola) M5275EVB board support" + depends on M5275 + help + Support for the Freescale (Motorola) M5275EVB board. + +config M5272C3 + bool "Motorola M5272C3 board support" + depends on M5272 + help + Support for the Motorola M5272C3 board. + +config COBRA5272 + bool "senTec COBRA5272 board support" + depends on M5272 + help + Support for the senTec COBRA5272 board. + +config AVNET5282 + bool "Avnet 5282 board support" + depends on M528x + help + Support for the Avnet 5282 board. + +config M5282EVB + bool "Motorola M5282EVB board support" + depends on M528x + help + Support for the Motorola M5282EVB board. + +config COBRA5282 + bool "senTec COBRA5282 board support" + depends on M528x + help + Support for the senTec COBRA5282 board. + +config SOM5282EM + bool "EMAC.Inc SOM5282EM board support" + depends on M528x + help + Support for the EMAC.Inc SOM5282EM module. + +config WILDFIRE + bool "Intec Automation Inc. WildFire board support" + depends on M528x + help + Support for the Intec Automation Inc. WildFire. + +config WILDFIREMOD + bool "Intec Automation Inc. WildFire module support" + depends on M528x + help + Support for the Intec Automation Inc. WildFire module. + +config ARN5307 + bool "Arnewsh 5307 board support" + depends on M5307 + help + Support for the Arnewsh 5307 board. + +config M5307C3 + bool "Motorola M5307C3 board support" + depends on M5307 + help + Support for the Motorola M5307C3 board. + +config SECUREEDGEMP3 + bool "SnapGear SecureEdge/MP3 platform support" + depends on M5307 + help + Support for the SnapGear SecureEdge/MP3 platform. + +config M5329EVB + bool "Freescale (Motorola) M5329EVB board support" + depends on M532x + help + Support for the Freescale (Motorola) M5329EVB board. + +config COBRA5329 + bool "senTec COBRA5329 board support" + depends on M532x + help + Support for the senTec COBRA5329 board. + +config M5407C3 + bool "Motorola M5407C3 board support" + depends on M5407 + help + Support for the Motorola M5407C3 board. + +config FIREBEE + bool "FireBee board support" + depends on M547x + help + Support for the FireBee ColdFire 5475 based board. + +config CLEOPATRA + bool "Feith CLEOPATRA board support" + depends on (M5307 || M5407) + help + Support for the Feith Cleopatra boards. + +config CANCam + bool "Feith CANCam board support" + depends on M5272 + help + Support for the Feith CANCam board. + +config SCALES + bool "Feith SCALES board support" + depends on M5272 + help + Support for the Feith SCALES board. + +config NETtel + bool "SecureEdge/NETtel board support" + depends on (M5206e || M5272 || M5307) + help + Support for the SnapGear NETtel/SecureEdge/SnapGear boards. + +config SNAPGEAR + bool "SnapGear router board support" + depends on NETtel + help + Special additional support for SnapGear router boards. + +config CPU16B + bool "Sneha Technologies S.L. Sarasvati board support" + depends on M5272 + help + Support for the SNEHA CPU16B board. + +config MOD5272 + bool "Netburner MOD-5272 board support" + depends on M5272 + help + Support for the Netburner MOD-5272 board. + +config SAVANTrosie1 + bool "Savant Rosie1 board support" + depends on M523x + help + Support for the Savant Rosie1 board. + +config ROMFS_FROM_ROM + bool "ROMFS image not RAM resident" + depends on (NETtel || SNAPGEAR) + help + The ROMfs filesystem will stay resident in the FLASH/ROM, not be + moved into RAM. + +config PILOT + bool + default y + depends on (PILOT3 || PILOT5) + +config ARNEWSH + bool + default y + depends on (ARN5206 || ARN5307) + +config FREESCALE + bool + default y + depends on (M5206eC3 || M5208EVB || M5235EVB || M5249C3 || M5271EVB || M5272C3 || M5275EVB || M5282EVB || M5307C3 || M5329EVB || M5407C3) + +config HW_FEITH + bool + default y + depends on (CLEOPATRA || CANCam || SCALES) + +config senTec + bool + default y + depends on (COBRA5272 || COBRA5282) + +config EMAC_INC + bool + default y + depends on (SOM5282EM) + +config SNEHA + bool + default y + depends on CPU16B + +config SAVANT + bool + default y + depends on SAVANTrosie1 + +config AVNET + bool + default y + depends on (AVNET5282) + +config UBOOT + bool "Support for U-Boot command line parameters" + help + If you say Y here kernel will try to collect command + line parameters from the initial u-boot stack. + default n + +config 4KSTACKS + bool "Use 4Kb for kernel stacks instead of 8Kb" + default y + help + If you say Y here the kernel will use a 4Kb stacksize for the + kernel stack attached to each process/thread. This facilitates + running more threads on a system and also reduces the pressure + on the VM subsystem for higher order allocations. + +comment "RAM configuration" + +config RAMBASE + hex "Address of the base of RAM" + default "0" + help + Define the address that RAM starts at. On many platforms this is + 0, the base of the address space. And this is the default. Some + platforms choose to setup their RAM at other addresses within the + processor address space. + +config RAMSIZE + hex "Size of RAM (in bytes), or 0 for automatic" + default "0x400000" + help + Define the size of the system RAM. If you select 0 then the + kernel will try to probe the RAM size at runtime. This is not + supported on all CPU types. + +config VECTORBASE + hex "Address of the base of system vectors" + default "0" + help + Define the address of the system vectors. Commonly this is + put at the start of RAM, but it doesn't have to be. On ColdFire + platforms this address is programmed into the VBR register, thus + actually setting the address to use. + +config MBAR + hex "Address of the MBAR (internal peripherals)" + default "0x10000000" + depends on HAVE_MBAR + help + Define the address of the internal system peripherals. This value + is set in the processors MBAR register. This is generally setup by + the boot loader, and will not be written by the kernel. By far most + ColdFire boards use the default 0x10000000 value, so if unsure then + use this. + +config IPSBAR + hex "Address of the IPSBAR (internal peripherals)" + default "0x40000000" + depends on HAVE_IPSBAR + help + Define the address of the internal system peripherals. This value + is set in the processors IPSBAR register. This is generally setup by + the boot loader, and will not be written by the kernel. By far most + ColdFire boards use the default 0x40000000 value, so if unsure then + use this. + +config KERNELBASE + hex "Address of the base of kernel code" + default "0x400" + help + Typically on m68k systems the kernel will not start at the base + of RAM, but usually some small offset from it. Define the start + address of the kernel here. The most common setup will have the + processor vectors at the base of RAM and then the start of the + kernel. On some platforms some RAM is reserved for boot loaders + and the kernel starts after that. The 0x400 default was based on + a system with the RAM based at address 0, and leaving enough room + for the theoretical maximum number of 256 vectors. + +choice + prompt "RAM bus width" + default RAMAUTOBIT + +config RAMAUTOBIT + bool "AUTO" + help + Select the physical RAM data bus size. Not needed on most platforms, + so you can generally choose AUTO. + +config RAM8BIT + bool "8bit" + help + Configure RAM bus to be 8 bits wide. + +config RAM16BIT + bool "16bit" + help + Configure RAM bus to be 16 bits wide. + +config RAM32BIT + bool "32bit" + help + Configure RAM bus to be 32 bits wide. + +endchoice + +comment "ROM configuration" + +config ROM + bool "Specify ROM linker regions" + default n + help + Define a ROM region for the linker script. This creates a kernel + that can be stored in flash, with possibly the text, and data + regions being copied out to RAM at startup. + +config ROMBASE + hex "Address of the base of ROM device" + default "0" + depends on ROM + help + Define the address that the ROM region starts at. Some platforms + use this to set their chip select region accordingly for the boot + device. + +config ROMVEC + hex "Address of the base of the ROM vectors" + default "0" + depends on ROM + help + This is almost always the same as the base of the ROM. Since on all + 68000 type variants the vectors are at the base of the boot device + on system startup. + +config ROMVECSIZE + hex "Size of ROM vector region (in bytes)" + default "0x400" + depends on ROM + help + Define the size of the vector region in ROM. For most 68000 + variants this would be 0x400 bytes in size. Set to 0 if you do + not want a vector region at the start of the ROM. + +config ROMSTART + hex "Address of the base of system image in ROM" + default "0x400" + depends on ROM + help + Define the start address of the system image in ROM. Commonly this + is strait after the ROM vectors. + +config ROMSIZE + hex "Size of the ROM device" + default "0x100000" + depends on ROM + help + Size of the ROM device. On some platforms this is used to setup + the chip select that controls the boot ROM device. + +choice + prompt "Kernel executes from" + ---help--- + Choose the memory type that the kernel will be running in. + +config RAMKERNEL + bool "RAM" + help + The kernel will be resident in RAM when running. + +config ROMKERNEL + bool "ROM" + help + The kernel will be resident in FLASH/ROM when running. This is + often referred to as Execute-in-Place (XIP), since the kernel + code executes from the position it is stored in the FLASH/ROM. + +endchoice + +if COLDFIRE +source "kernel/Kconfig.preempt" +endif + +source "kernel/time/Kconfig" + +config ISA_DMA_API + bool + depends on !M5272 + default y + +source "drivers/pcmcia/Kconfig" + diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index b793163abc61..be46cadd4017 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile @@ -1,123 +1,7 @@ -# -# m68k/Makefile -# -# This file is included by the global makefile so that you can add your own -# architecture-specific flags and dependencies. Remember to do have actions -# for "archclean" and "archdep" for cleaning up and making dependencies for -# this architecture -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# -# Copyright (C) 1994 by Hamish Macdonald -# - KBUILD_DEFCONFIG := multi_defconfig -# override top level makefile -AS += -m68020 -LDFLAGS := -m m68kelf -KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds -ifneq ($(SUBARCH),$(ARCH)) - ifeq ($(CROSS_COMPILE),) - CROSS_COMPILE := $(call cc-cross-prefix, \ - m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-) - endif -endif - -ifdef CONFIG_SUN3 -LDFLAGS_vmlinux = -N -endif - -CHECKFLAGS += -D__mc68000__ - -# without -fno-strength-reduce the 53c7xx.c driver fails ;-( -KBUILD_CFLAGS += -pipe -fno-strength-reduce -ffixed-a2 - -# enable processor switch if compiled only for a single cpu -ifndef CONFIG_M68020 -ifndef CONFIG_M68030 - -ifndef CONFIG_M68060 -KBUILD_CFLAGS += -m68040 -endif - -ifndef CONFIG_M68040 -KBUILD_CFLAGS += -m68060 -endif - -endif -endif - -ifdef CONFIG_KGDB -# If configured for kgdb support, include debugging infos and keep the -# frame pointer -KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g -endif - -ifndef CONFIG_SUN3 -head-y := arch/m68k/kernel/head.o +ifdef CONFIG_MMU +include $(srctree)/arch/m68k/Makefile_mm else -head-y := arch/m68k/kernel/sun3-head.o +include $(srctree)/arch/m68k/Makefile_no endif - -core-y += arch/m68k/kernel/ arch/m68k/mm/ -libs-y += arch/m68k/lib/ - -core-$(CONFIG_Q40) += arch/m68k/q40/ -core-$(CONFIG_AMIGA) += arch/m68k/amiga/ -core-$(CONFIG_ATARI) += arch/m68k/atari/ -core-$(CONFIG_MAC) += arch/m68k/mac/ -core-$(CONFIG_HP300) += arch/m68k/hp300/ -core-$(CONFIG_APOLLO) += arch/m68k/apollo/ -core-$(CONFIG_MVME147) += arch/m68k/mvme147/ -core-$(CONFIG_MVME16x) += arch/m68k/mvme16x/ -core-$(CONFIG_BVME6000) += arch/m68k/bvme6000/ -core-$(CONFIG_SUN3X) += arch/m68k/sun3x/ arch/m68k/sun3/ -core-$(CONFIG_SUN3) += arch/m68k/sun3/ arch/m68k/sun3/prom/ -core-$(CONFIG_NATFEAT) += arch/m68k/emu/ -core-$(CONFIG_M68040) += arch/m68k/fpsp040/ -core-$(CONFIG_M68060) += arch/m68k/ifpsp060/ -core-$(CONFIG_M68KFPU_EMU) += arch/m68k/math-emu/ - -all: zImage - -lilo: vmlinux - if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi - if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi - cat vmlinux > $(INSTALL_PATH)/vmlinux - cp System.map $(INSTALL_PATH)/System.map - if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi - -zImage compressed: vmlinux.gz - -vmlinux.gz: vmlinux - -ifndef CONFIG_KGDB - cp vmlinux vmlinux.tmp - $(STRIP) vmlinux.tmp - gzip -9c vmlinux.tmp >vmlinux.gz - rm vmlinux.tmp -else - gzip -9c vmlinux >vmlinux.gz -endif - -bzImage: vmlinux.bz2 - -vmlinux.bz2: vmlinux - -ifndef CONFIG_KGDB - cp vmlinux vmlinux.tmp - $(STRIP) vmlinux.tmp - bzip2 -1c vmlinux.tmp >vmlinux.bz2 - rm vmlinux.tmp -else - bzip2 -1c vmlinux >vmlinux.bz2 -endif - -archclean: - rm -f vmlinux.gz vmlinux.bz2 - -install: - sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)" diff --git a/arch/m68k/Makefile_mm b/arch/m68k/Makefile_mm new file mode 100644 index 000000000000..d449b6d5aecf --- /dev/null +++ b/arch/m68k/Makefile_mm @@ -0,0 +1,121 @@ +# +# m68k/Makefile +# +# This file is included by the global makefile so that you can add your own +# architecture-specific flags and dependencies. Remember to do have actions +# for "archclean" and "archdep" for cleaning up and making dependencies for +# this architecture +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +# Copyright (C) 1994 by Hamish Macdonald +# + +# override top level makefile +AS += -m68020 +LDFLAGS := -m m68kelf +KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds +ifneq ($(SUBARCH),$(ARCH)) + ifeq ($(CROSS_COMPILE),) + CROSS_COMPILE := $(call cc-cross-prefix, \ + m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-) + endif +endif + +ifdef CONFIG_SUN3 +LDFLAGS_vmlinux = -N +endif + +CHECKFLAGS += -D__mc68000__ + +# without -fno-strength-reduce the 53c7xx.c driver fails ;-( +KBUILD_CFLAGS += -pipe -fno-strength-reduce -ffixed-a2 + +# enable processor switch if compiled only for a single cpu +ifndef CONFIG_M68020 +ifndef CONFIG_M68030 + +ifndef CONFIG_M68060 +KBUILD_CFLAGS += -m68040 +endif + +ifndef CONFIG_M68040 +KBUILD_CFLAGS += -m68060 +endif + +endif +endif + +ifdef CONFIG_KGDB +# If configured for kgdb support, include debugging infos and keep the +# frame pointer +KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g +endif + +ifndef CONFIG_SUN3 +head-y := arch/m68k/kernel/head.o +else +head-y := arch/m68k/kernel/sun3-head.o +endif + +core-y += arch/m68k/kernel/ arch/m68k/mm/ +libs-y += arch/m68k/lib/ + +core-$(CONFIG_Q40) += arch/m68k/q40/ +core-$(CONFIG_AMIGA) += arch/m68k/amiga/ +core-$(CONFIG_ATARI) += arch/m68k/atari/ +core-$(CONFIG_MAC) += arch/m68k/mac/ +core-$(CONFIG_HP300) += arch/m68k/hp300/ +core-$(CONFIG_APOLLO) += arch/m68k/apollo/ +core-$(CONFIG_MVME147) += arch/m68k/mvme147/ +core-$(CONFIG_MVME16x) += arch/m68k/mvme16x/ +core-$(CONFIG_BVME6000) += arch/m68k/bvme6000/ +core-$(CONFIG_SUN3X) += arch/m68k/sun3x/ arch/m68k/sun3/ +core-$(CONFIG_SUN3) += arch/m68k/sun3/ arch/m68k/sun3/prom/ +core-$(CONFIG_NATFEAT) += arch/m68k/emu/ +core-$(CONFIG_M68040) += arch/m68k/fpsp040/ +core-$(CONFIG_M68060) += arch/m68k/ifpsp060/ +core-$(CONFIG_M68KFPU_EMU) += arch/m68k/math-emu/ + +all: zImage + +lilo: vmlinux + if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi + if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi + cat vmlinux > $(INSTALL_PATH)/vmlinux + cp System.map $(INSTALL_PATH)/System.map + if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi + +zImage compressed: vmlinux.gz + +vmlinux.gz: vmlinux + +ifndef CONFIG_KGDB + cp vmlinux vmlinux.tmp + $(STRIP) vmlinux.tmp + gzip -9c vmlinux.tmp >vmlinux.gz + rm vmlinux.tmp +else + gzip -9c vmlinux >vmlinux.gz +endif + +bzImage: vmlinux.bz2 + +vmlinux.bz2: vmlinux + +ifndef CONFIG_KGDB + cp vmlinux vmlinux.tmp + $(STRIP) vmlinux.tmp + bzip2 -1c vmlinux.tmp >vmlinux.bz2 + rm vmlinux.tmp +else + bzip2 -1c vmlinux >vmlinux.bz2 +endif + +archclean: + rm -f vmlinux.gz vmlinux.bz2 + +install: + sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)" diff --git a/arch/m68k/Makefile_no b/arch/m68k/Makefile_no new file mode 100644 index 000000000000..81652ab893e1 --- /dev/null +++ b/arch/m68k/Makefile_no @@ -0,0 +1,124 @@ +# +# arch/m68k/Makefile +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +# (C) Copyright 2002, Greg Ungerer <gerg@snapgear.com> +# + +platform-$(CONFIG_M68328) := 68328 +platform-$(CONFIG_M68EZ328) := 68EZ328 +platform-$(CONFIG_M68VZ328) := 68VZ328 +platform-$(CONFIG_M68360) := 68360 +platform-$(CONFIG_M5206) := 5206 +platform-$(CONFIG_M5206e) := 5206e +platform-$(CONFIG_M520x) := 520x +platform-$(CONFIG_M523x) := 523x +platform-$(CONFIG_M5249) := 5249 +platform-$(CONFIG_M527x) := 527x +platform-$(CONFIG_M5272) := 5272 +platform-$(CONFIG_M528x) := 528x +platform-$(CONFIG_M5307) := 5307 +platform-$(CONFIG_M532x) := 532x +platform-$(CONFIG_M5407) := 5407 +platform-$(CONFIG_M54xx) := 54xx +PLATFORM := $(platform-y) + +board-$(CONFIG_PILOT) := pilot +board-$(CONFIG_UC5272) := UC5272 +board-$(CONFIG_UC5282) := UC5282 +board-$(CONFIG_UCSIMM) := ucsimm +board-$(CONFIG_UCDIMM) := ucdimm +board-$(CONFIG_UCQUICC) := uCquicc +board-$(CONFIG_DRAGEN2) := de2 +board-$(CONFIG_ARNEWSH) := ARNEWSH +board-$(CONFIG_FREESCALE) := FREESCALE +board-$(CONFIG_M5235EVB) := M5235EVB +board-$(CONFIG_M5271EVB) := M5271EVB +board-$(CONFIG_M5275EVB) := M5275EVB +board-$(CONFIG_M5282EVB) := M5282EVB +board-$(CONFIG_ELITE) := eLITE +board-$(CONFIG_NETtel) := NETtel +board-$(CONFIG_SECUREEDGEMP3) := MP3 +board-$(CONFIG_CLEOPATRA) := CLEOPATRA +board-$(CONFIG_senTec) := senTec +board-$(CONFIG_SNEHA) := SNEHA +board-$(CONFIG_M5208EVB) := M5208EVB +board-$(CONFIG_MOD5272) := MOD5272 +board-$(CONFIG_AVNET) := AVNET +board-$(CONFIG_SAVANT) := SAVANT +BOARD := $(board-y) + +model-$(CONFIG_RAMKERNEL) := ram +model-$(CONFIG_ROMKERNEL) := rom +MODEL := $(model-y) + +# +# Some code support is grouped together for a common cpu-subclass (for +# example all ColdFire cpu's are very similar). Determine the sub-class +# for the selected cpu. ONLY need to define this for the non-base member +# of the family. +# +cpuclass-$(CONFIG_M5206) := coldfire +cpuclass-$(CONFIG_M5206e) := coldfire +cpuclass-$(CONFIG_M520x) := coldfire +cpuclass-$(CONFIG_M523x) := coldfire +cpuclass-$(CONFIG_M5249) := coldfire +cpuclass-$(CONFIG_M527x) := coldfire +cpuclass-$(CONFIG_M5272) := coldfire +cpuclass-$(CONFIG_M528x) := coldfire +cpuclass-$(CONFIG_M5307) := coldfire +cpuclass-$(CONFIG_M532x) := coldfire +cpuclass-$(CONFIG_M5407) := coldfire +cpuclass-$(CONFIG_M54xx) := coldfire +cpuclass-$(CONFIG_M68328) := 68328 +cpuclass-$(CONFIG_M68EZ328) := 68328 +cpuclass-$(CONFIG_M68VZ328) := 68328 +cpuclass-$(CONFIG_M68360) := 68360 +CPUCLASS := $(cpuclass-y) + +ifneq ($(CPUCLASS),$(PLATFORM)) +CLASSDIR := arch/m68k/platform/$(cpuclass-y)/ +endif + +export PLATFORM BOARD MODEL CPUCLASS + +# +# Some CFLAG additions based on specific CPU type. +# +cflags-$(CONFIG_M5206) := $(call cc-option,-mcpu=5206,-m5200) +cflags-$(CONFIG_M5206e) := $(call cc-option,-mcpu=5206e,-m5200) +cflags-$(CONFIG_M520x) := $(call cc-option,-mcpu=5208,-m5200) +cflags-$(CONFIG_M523x) := $(call cc-option,-mcpu=523x,-m5307) +cflags-$(CONFIG_M5249) := $(call cc-option,-mcpu=5249,-m5200) +cflags-$(CONFIG_M5271) := $(call cc-option,-mcpu=5271,-m5307) +cflags-$(CONFIG_M5272) := $(call cc-option,-mcpu=5272,-m5307) +cflags-$(CONFIG_M5275) := $(call cc-option,-mcpu=5275,-m5307) +cflags-$(CONFIG_M528x) := $(call cc-option,-mcpu=528x,-m5307) +cflags-$(CONFIG_M5307) := $(call cc-option,-mcpu=5307,-m5200) +cflags-$(CONFIG_M532x) := $(call cc-option,-mcpu=532x,-m5307) +cflags-$(CONFIG_M5407) := $(call cc-option,-mcpu=5407,-m5200) +cflags-$(CONFIG_M54xx) := $(call cc-option,-mcpu=5475,-m5200) +cflags-$(CONFIG_M68328) := -m68000 +cflags-$(CONFIG_M68EZ328) := -m68000 +cflags-$(CONFIG_M68VZ328) := -m68000 +cflags-$(CONFIG_M68360) := -m68332 + +KBUILD_AFLAGS += $(cflags-y) + +KBUILD_CFLAGS += $(cflags-y) +KBUILD_CFLAGS += -D__linux__ +KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" + +head-y := arch/m68k/platform/$(cpuclass-y)/head.o + +core-y += arch/m68k/kernel/ \ + arch/m68k/mm/ \ + $(CLASSDIR) \ + arch/m68k/platform/$(PLATFORM)/ +libs-y += arch/m68k/lib/ + +archclean: + diff --git a/arch/m68k/configs/m5208evb_defconfig b/arch/m68k/configs/m5208evb_defconfig new file mode 100644 index 000000000000..c1616824e201 --- /dev/null +++ b/arch/m68k/configs/m5208evb_defconfig @@ -0,0 +1,76 @@ +# CONFIG_MMU is not set +CONFIG_EXPERIMENTAL=y +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_EXPERT=y +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SIGNALFD is not set +# CONFIG_TIMERFD is not set +# CONFIG_EVENTFD is not set +# CONFIG_AIO is not set +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_COMPAT_BRK is not set +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_M520x=y +CONFIG_CLOCK_SET=y +CONFIG_CLOCK_FREQ=166666666 +CONFIG_CLOCK_DIV=2 +CONFIG_M5208EVB=y +# CONFIG_4KSTACKS is not set +CONFIG_RAMBASE=0x40000000 +CONFIG_RAMSIZE=0x2000000 +CONFIG_VECTORBASE=0x40000000 +CONFIG_KERNELBASE=0x40020000 +CONFIG_RAM16BIT=y +CONFIG_BINFMT_FLAT=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set +# CONFIG_INET_DIAG is not set +# CONFIG_IPV6 is not set +# CONFIG_FW_LOADER is not set +CONFIG_MTD=y +CONFIG_MTD_PARTITIONS=y +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_RAM=y +CONFIG_MTD_UCLINUX=y +CONFIG_BLK_DEV_RAM=y +# CONFIG_MISC_DEVICES is not set +CONFIG_NETDEVICES=y +CONFIG_NET_ETHERNET=y +CONFIG_FEC=y +# CONFIG_NETDEV_1000 is not set +# CONFIG_NETDEV_10000 is not set +# CONFIG_INPUT is not set +# CONFIG_SERIO is not set +# CONFIG_VT is not set +CONFIG_SERIAL_MCF=y +CONFIG_SERIAL_MCF_BAUDRATE=115200 +CONFIG_SERIAL_MCF_CONSOLE=y +# CONFIG_UNIX98_PTYS is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_HWMON is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_EXT2_FS=y +# CONFIG_FILE_LOCKING is not set +# CONFIG_DNOTIFY is not set +# CONFIG_SYSFS is not set +CONFIG_ROMFS_FS=y +CONFIG_ROMFS_BACKED_BY_MTD=y +# CONFIG_NETWORK_FILESYSTEMS is not set +# CONFIG_RCU_CPU_STALL_DETECTOR is not set +CONFIG_SYSCTL_SYSCALL_CHECK=y +CONFIG_FULLDEBUG=y +CONFIG_BOOTPARAM=y +CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" diff --git a/arch/m68k/configs/m5249evb_defconfig b/arch/m68k/configs/m5249evb_defconfig new file mode 100644 index 000000000000..a6599e42facf --- /dev/null +++ b/arch/m68k/configs/m5249evb_defconfig @@ -0,0 +1,69 @@ +# CONFIG_MMU is not set +CONFIG_EXPERIMENTAL=y +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_EXPERT=y +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SIGNALFD is not set +# CONFIG_TIMERFD is not set +# CONFIG_EVENTFD is not set +# CONFIG_AIO is not set +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_SLUB_DEBUG is not set +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_M5249=y +CONFIG_CLOCK_SET=y +CONFIG_CLOCK_FREQ=140000000 +CONFIG_CLOCK_DIV=2 +CONFIG_M5249C3=y +CONFIG_RAMBASE=0x00000000 +CONFIG_RAMSIZE=0x00800000 +CONFIG_VECTORBASE=0x00000000 +CONFIG_KERNELBASE=0x00020000 +CONFIG_BINFMT_FLAT=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set +# CONFIG_INET_DIAG is not set +# CONFIG_IPV6 is not set +# CONFIG_FW_LOADER is not set +CONFIG_MTD=y +CONFIG_MTD_PARTITIONS=y +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_RAM=y +CONFIG_MTD_UCLINUX=y +CONFIG_BLK_DEV_RAM=y +# CONFIG_MISC_DEVICES is not set +CONFIG_NETDEVICES=y +CONFIG_NET_ETHERNET=y +# CONFIG_NETDEV_1000 is not set +# CONFIG_NETDEV_10000 is not set +CONFIG_PPP=y +# CONFIG_INPUT is not set +# CONFIG_SERIO is not set +# CONFIG_VT is not set +CONFIG_SERIAL_MCF=y +CONFIG_SERIAL_MCF_CONSOLE=y +# CONFIG_UNIX98_PTYS is not set +# CONFIG_HWMON is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_EXT2_FS=y +# CONFIG_FILE_LOCKING is not set +CONFIG_ROMFS_FS=y +CONFIG_ROMFS_BACKED_BY_MTD=y +# CONFIG_NETWORK_FILESYSTEMS is not set +# CONFIG_RCU_CPU_STALL_DETECTOR is not set +CONFIG_BOOTPARAM=y +CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" +# CONFIG_CRC32 is not set diff --git a/arch/m68k/configs/m5272c3_defconfig b/arch/m68k/configs/m5272c3_defconfig new file mode 100644 index 000000000000..3fa60a57a0f9 --- /dev/null +++ b/arch/m68k/configs/m5272c3_defconfig @@ -0,0 +1,67 @@ +# CONFIG_MMU is not set +CONFIG_EXPERIMENTAL=y +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_EXPERT=y +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SIGNALFD is not set +# CONFIG_TIMERFD is not set +# CONFIG_EVENTFD is not set +# CONFIG_AIO is not set +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_SLUB_DEBUG is not set +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_M5272=y +CONFIG_CLOCK_SET=y +CONFIG_M5272C3=y +CONFIG_RAMBASE=0x00000000 +CONFIG_RAMSIZE=0x00800000 +CONFIG_VECTORBASE=0x00000000 +CONFIG_KERNELBASE=0x00020000 +CONFIG_BINFMT_FLAT=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set +# CONFIG_INET_DIAG is not set +# CONFIG_IPV6 is not set +# CONFIG_FW_LOADER is not set +CONFIG_MTD=y +CONFIG_MTD_PARTITIONS=y +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_RAM=y +CONFIG_MTD_UCLINUX=y +CONFIG_BLK_DEV_RAM=y +# CONFIG_MISC_DEVICES is not set +CONFIG_NETDEVICES=y +CONFIG_NET_ETHERNET=y +CONFIG_FEC=y +# CONFIG_NETDEV_1000 is not set +# CONFIG_NETDEV_10000 is not set +# CONFIG_INPUT is not set +# CONFIG_SERIO is not set +# CONFIG_VT is not set +CONFIG_SERIAL_MCF=y +CONFIG_SERIAL_MCF_CONSOLE=y +# CONFIG_UNIX98_PTYS is not set +# CONFIG_HWMON is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_EXT2_FS=y +# CONFIG_FILE_LOCKING is not set +# CONFIG_DNOTIFY is not set +CONFIG_ROMFS_FS=y +CONFIG_ROMFS_BACKED_BY_MTD=y +# CONFIG_NETWORK_FILESYSTEMS is not set +# CONFIG_RCU_CPU_STALL_DETECTOR is not set +CONFIG_BOOTPARAM=y +CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" diff --git a/arch/m68k/configs/m5275evb_defconfig b/arch/m68k/configs/m5275evb_defconfig new file mode 100644 index 000000000000..33c32aeca12b --- /dev/null +++ b/arch/m68k/configs/m5275evb_defconfig @@ -0,0 +1,74 @@ +# CONFIG_MMU is not set +CONFIG_EXPERIMENTAL=y +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_EXPERT=y +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SIGNALFD is not set +# CONFIG_TIMERFD is not set +# CONFIG_EVENTFD is not set +# CONFIG_AIO is not set +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_SLUB_DEBUG is not set +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_M5275=y +CONFIG_CLOCK_SET=y +CONFIG_CLOCK_FREQ=150000000 +CONFIG_CLOCK_DIV=2 +CONFIG_M5275EVB=y +# CONFIG_4KSTACKS is not set +CONFIG_RAMBASE=0x00000000 +CONFIG_RAMSIZE=0x00000000 +CONFIG_VECTORBASE=0x00000000 +CONFIG_KERNELBASE=0x00020000 +CONFIG_BINFMT_FLAT=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set +# CONFIG_INET_DIAG is not set +# CONFIG_IPV6 is not set +# CONFIG_FW_LOADER is not set +CONFIG_MTD=y +CONFIG_MTD_PARTITIONS=y +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_RAM=y +CONFIG_MTD_UCLINUX=y +CONFIG_BLK_DEV_RAM=y +# CONFIG_MISC_DEVICES is not set +CONFIG_NETDEVICES=y +CONFIG_NET_ETHERNET=y +CONFIG_FEC=y +CONFIG_FEC2=y +# CONFIG_NETDEV_1000 is not set +# CONFIG_NETDEV_10000 is not set +CONFIG_PPP=y +# CONFIG_INPUT is not set +# CONFIG_SERIO is not set +# CONFIG_VT is not set +CONFIG_SERIAL_MCF=y +CONFIG_SERIAL_MCF_CONSOLE=y +# CONFIG_UNIX98_PTYS is not set +# CONFIG_HWMON is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_EXT2_FS=y +# CONFIG_FILE_LOCKING is not set +# CONFIG_DNOTIFY is not set +CONFIG_ROMFS_FS=y +CONFIG_ROMFS_BACKED_BY_MTD=y +# CONFIG_NETWORK_FILESYSTEMS is not set +# CONFIG_RCU_CPU_STALL_DETECTOR is not set +CONFIG_SYSCTL_SYSCALL_CHECK=y +CONFIG_BOOTPARAM=y +CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" +# CONFIG_CRC32 is not set diff --git a/arch/m68k/configs/m5307c3_defconfig b/arch/m68k/configs/m5307c3_defconfig new file mode 100644 index 000000000000..43795f41f7c7 --- /dev/null +++ b/arch/m68k/configs/m5307c3_defconfig @@ -0,0 +1,77 @@ +# CONFIG_MMU is not set +CONFIG_EXPERIMENTAL=y +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_EXPERT=y +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SIGNALFD is not set +# CONFIG_TIMERFD is not set +# CONFIG_EVENTFD is not set +# CONFIG_AIO is not set +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_SLUB_DEBUG is not set +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_M5307=y +CONFIG_CLOCK_SET=y +CONFIG_CLOCK_FREQ=90000000 +CONFIG_CLOCK_DIV=2 +CONFIG_M5307C3=y +CONFIG_RAMBASE=0x00000000 +CONFIG_RAMSIZE=0x00800000 +CONFIG_VECTORBASE=0x00000000 +CONFIG_KERNELBASE=0x00020000 +CONFIG_BINFMT_FLAT=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set +# CONFIG_INET_DIAG is not set +# CONFIG_IPV6 is not set +# CONFIG_FW_LOADER is not set +CONFIG_MTD=y +CONFIG_MTD_PARTITIONS=y +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_RAM=y +CONFIG_MTD_UCLINUX=y +CONFIG_BLK_DEV_RAM=y +# CONFIG_MISC_DEVICES is not set +CONFIG_NETDEVICES=y +CONFIG_NET_ETHERNET=y +# CONFIG_NETDEV_1000 is not set +# CONFIG_NETDEV_10000 is not set +CONFIG_PPP=y +CONFIG_SLIP=y +CONFIG_SLIP_COMPRESSED=y +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_SERIO is not set +# CONFIG_VT is not set +CONFIG_SERIAL_MCF=y +CONFIG_SERIAL_MCF_CONSOLE=y +# CONFIG_LEGACY_PTYS is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_HWMON is not set +# CONFIG_HID_SUPPORT is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_EXT2_FS=y +# CONFIG_DNOTIFY is not set +CONFIG_ROMFS_FS=y +CONFIG_ROMFS_BACKED_BY_MTD=y +# CONFIG_NETWORK_FILESYSTEMS is not set +# CONFIG_RCU_CPU_STALL_DETECTOR is not set +CONFIG_SYSCTL_SYSCALL_CHECK=y +CONFIG_FULLDEBUG=y +CONFIG_BOOTPARAM=y +CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" +# CONFIG_CRC32 is not set diff --git a/arch/m68k/configs/m5407c3_defconfig b/arch/m68k/configs/m5407c3_defconfig new file mode 100644 index 000000000000..72746c57a571 --- /dev/null +++ b/arch/m68k/configs/m5407c3_defconfig @@ -0,0 +1,71 @@ +# CONFIG_MMU is not set +CONFIG_EXPERIMENTAL=y +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_EXPERT=y +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SIGNALFD is not set +# CONFIG_TIMERFD is not set +# CONFIG_EVENTFD is not set +# CONFIG_AIO is not set +# CONFIG_VM_EVENT_COUNTERS is not set +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_M5407=y +CONFIG_CLOCK_SET=y +CONFIG_CLOCK_FREQ=50000000 +CONFIG_M5407C3=y +CONFIG_RAMBASE=0x00000000 +CONFIG_RAMSIZE=0x00000000 +CONFIG_VECTORBASE=0x00000000 +CONFIG_KERNELBASE=0x00020000 +CONFIG_BINFMT_FLAT=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set +# CONFIG_INET_DIAG is not set +# CONFIG_IPV6 is not set +# CONFIG_FW_LOADER is not set +CONFIG_MTD=y +CONFIG_MTD_PARTITIONS=y +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_RAM=y +CONFIG_MTD_UCLINUX=y +CONFIG_BLK_DEV_RAM=y +# CONFIG_MISC_DEVICES is not set +CONFIG_NETDEVICES=y +CONFIG_NET_ETHERNET=y +# CONFIG_NETDEV_1000 is not set +# CONFIG_NETDEV_10000 is not set +CONFIG_PPP=y +# CONFIG_INPUT is not set +# CONFIG_VT is not set +CONFIG_SERIAL_MCF=y +CONFIG_SERIAL_MCF_CONSOLE=y +# CONFIG_UNIX98_PTYS is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_HWMON is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_EXT2_FS=y +# CONFIG_FILE_LOCKING is not set +# CONFIG_DNOTIFY is not set +CONFIG_ROMFS_FS=y +CONFIG_ROMFS_BACKED_BY_MTD=y +# CONFIG_NETWORK_FILESYSTEMS is not set +# CONFIG_RCU_CPU_STALL_DETECTOR is not set +CONFIG_SYSCTL_SYSCALL_CHECK=y +CONFIG_BOOTPARAM=y +CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" +# CONFIG_CRC32 is not set diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile index 55d5d6b680a2..c482ebc9dd54 100644 --- a/arch/m68k/kernel/Makefile +++ b/arch/m68k/kernel/Makefile @@ -1,17 +1,5 @@ -# -# Makefile for the linux kernel. -# - -ifndef CONFIG_SUN3 - extra-y := head.o +ifdef CONFIG_MMU +include arch/m68k/kernel/Makefile_mm else - extra-y := sun3-head.o +include arch/m68k/kernel/Makefile_no endif -extra-y += vmlinux.lds - -obj-y := entry.o process.o traps.o ints.o signal.o ptrace.o module.o \ - sys_m68k.o time.o setup.o m68k_ksyms.o devres.o - -devres-y = ../../../kernel/irq/devres.o - -obj-y$(CONFIG_MMU_SUN3) += dma.o # no, it's not a typo diff --git a/arch/m68k/kernel/Makefile_mm b/arch/m68k/kernel/Makefile_mm new file mode 100644 index 000000000000..55d5d6b680a2 --- /dev/null +++ b/arch/m68k/kernel/Makefile_mm @@ -0,0 +1,17 @@ +# +# Makefile for the linux kernel. +# + +ifndef CONFIG_SUN3 + extra-y := head.o +else + extra-y := sun3-head.o +endif +extra-y += vmlinux.lds + +obj-y := entry.o process.o traps.o ints.o signal.o ptrace.o module.o \ + sys_m68k.o time.o setup.o m68k_ksyms.o devres.o + +devres-y = ../../../kernel/irq/devres.o + +obj-y$(CONFIG_MMU_SUN3) += dma.o # no, it's not a typo diff --git a/arch/m68k/kernel/Makefile_no b/arch/m68k/kernel/Makefile_no new file mode 100644 index 000000000000..37c3fc074c0a --- /dev/null +++ b/arch/m68k/kernel/Makefile_no @@ -0,0 +1,10 @@ +# +# Makefile for arch/m68knommu/kernel. +# + +extra-y := vmlinux.lds + +obj-y += dma.o entry.o init_task.o irq.o m68k_ksyms.o process.o ptrace.o \ + setup.o signal.o syscalltable.o sys_m68k.o time.o traps.o + +obj-$(CONFIG_MODULES) += module.o diff --git a/arch/m68k/kernel/asm-offsets.c b/arch/m68k/kernel/asm-offsets.c index 78e59b82ebc3..59a69a5c62f2 100644 --- a/arch/m68k/kernel/asm-offsets.c +++ b/arch/m68k/kernel/asm-offsets.c @@ -1,100 +1,5 @@ -/* - * This program is used to generate definitions needed by - * assembly language modules. - * - * We use the technique used in the OSF Mach kernel code: - * generate asm statements containing #defines, - * compile this file to assembler, and then extract the - * #defines from the assembly-language output. - */ - -#define ASM_OFFSETS_C - -#include <linux/stddef.h> -#include <linux/sched.h> -#include <linux/kernel_stat.h> -#include <linux/kbuild.h> -#include <asm/bootinfo.h> -#include <asm/irq.h> -#include <asm/amigahw.h> -#include <linux/font.h> - -int main(void) -{ - /* offsets into the task struct */ - DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); - DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info)); - DEFINE(TASK_MM, offsetof(struct task_struct, mm)); #ifdef CONFIG_MMU - DEFINE(TASK_TINFO, offsetof(struct task_struct, thread.info)); +#include "asm-offsets_mm.c" +#else +#include "asm-offsets_no.c" #endif - - /* offsets into the thread struct */ - DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp)); - DEFINE(THREAD_USP, offsetof(struct thread_struct, usp)); - DEFINE(THREAD_SR, offsetof(struct thread_struct, sr)); - DEFINE(THREAD_FS, offsetof(struct thread_struct, fs)); - DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp)); - DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0)); - DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp)); - DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl)); - DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate)); - - /* offsets into the thread_info struct */ - DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count)); - DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags)); - - /* offsets into the pt_regs */ - DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0)); - DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0)); - DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1)); - DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2)); - DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3)); - DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4)); - DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5)); - DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0)); - DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1)); - DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2)); - DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc)); - DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr)); - /* bitfields are a bit difficult */ - DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4); - - /* offsets into the irq_cpustat_t struct */ - DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); - - /* offsets into the bi_record struct */ - DEFINE(BIR_TAG, offsetof(struct bi_record, tag)); - DEFINE(BIR_SIZE, offsetof(struct bi_record, size)); - DEFINE(BIR_DATA, offsetof(struct bi_record, data)); - - /* offsets into font_desc (drivers/video/console/font.h) */ - DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx)); - DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name)); - DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width)); - DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height)); - DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data)); - DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref)); - - /* signal defines */ - DEFINE(LSIGSEGV, SIGSEGV); - DEFINE(LSEGV_MAPERR, SEGV_MAPERR); - DEFINE(LSIGTRAP, SIGTRAP); - DEFINE(LTRAP_TRACE, TRAP_TRACE); - - /* offsets into the custom struct */ - DEFINE(CUSTOMBASE, &amiga_custom); - DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar)); - DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr)); - DEFINE(C_INTENA, offsetof(struct CUSTOM, intena)); - DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq)); - DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr)); - DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat)); - DEFINE(C_SERPER, offsetof(struct CUSTOM, serper)); - DEFINE(CIAABASE, &ciaa); - DEFINE(CIABBASE, &ciab); - DEFINE(C_PRA, offsetof(struct CIA, pra)); - DEFINE(ZTWOBASE, zTwoBase); - - return 0; -} diff --git a/arch/m68k/kernel/asm-offsets_mm.c b/arch/m68k/kernel/asm-offsets_mm.c new file mode 100644 index 000000000000..78e59b82ebc3 --- /dev/null +++ b/arch/m68k/kernel/asm-offsets_mm.c @@ -0,0 +1,100 @@ +/* + * This program is used to generate definitions needed by + * assembly language modules. + * + * We use the technique used in the OSF Mach kernel code: + * generate asm statements containing #defines, + * compile this file to assembler, and then extract the + * #defines from the assembly-language output. + */ + +#define ASM_OFFSETS_C + +#include <linux/stddef.h> +#include <linux/sched.h> +#include <linux/kernel_stat.h> +#include <linux/kbuild.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/amigahw.h> +#include <linux/font.h> + +int main(void) +{ + /* offsets into the task struct */ + DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); + DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info)); + DEFINE(TASK_MM, offsetof(struct task_struct, mm)); +#ifdef CONFIG_MMU + DEFINE(TASK_TINFO, offsetof(struct task_struct, thread.info)); +#endif + + /* offsets into the thread struct */ + DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp)); + DEFINE(THREAD_USP, offsetof(struct thread_struct, usp)); + DEFINE(THREAD_SR, offsetof(struct thread_struct, sr)); + DEFINE(THREAD_FS, offsetof(struct thread_struct, fs)); + DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp)); + DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0)); + DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp)); + DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl)); + DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate)); + + /* offsets into the thread_info struct */ + DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count)); + DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags)); + + /* offsets into the pt_regs */ + DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0)); + DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0)); + DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1)); + DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2)); + DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3)); + DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4)); + DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5)); + DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0)); + DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1)); + DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2)); + DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc)); + DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr)); + /* bitfields are a bit difficult */ + DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4); + + /* offsets into the irq_cpustat_t struct */ + DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); + + /* offsets into the bi_record struct */ + DEFINE(BIR_TAG, offsetof(struct bi_record, tag)); + DEFINE(BIR_SIZE, offsetof(struct bi_record, size)); + DEFINE(BIR_DATA, offsetof(struct bi_record, data)); + + /* offsets into font_desc (drivers/video/console/font.h) */ + DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx)); + DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name)); + DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width)); + DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height)); + DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data)); + DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref)); + + /* signal defines */ + DEFINE(LSIGSEGV, SIGSEGV); + DEFINE(LSEGV_MAPERR, SEGV_MAPERR); + DEFINE(LSIGTRAP, SIGTRAP); + DEFINE(LTRAP_TRACE, TRAP_TRACE); + + /* offsets into the custom struct */ + DEFINE(CUSTOMBASE, &amiga_custom); + DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar)); + DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr)); + DEFINE(C_INTENA, offsetof(struct CUSTOM, intena)); + DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq)); + DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr)); + DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat)); + DEFINE(C_SERPER, offsetof(struct CUSTOM, serper)); + DEFINE(CIAABASE, &ciaa); + DEFINE(CIABBASE, &ciab); + DEFINE(C_PRA, offsetof(struct CIA, pra)); + DEFINE(ZTWOBASE, zTwoBase); + + return 0; +} diff --git a/arch/m68k/kernel/asm-offsets_no.c b/arch/m68k/kernel/asm-offsets_no.c new file mode 100644 index 000000000000..ffe02f41ad46 --- /dev/null +++ b/arch/m68k/kernel/asm-offsets_no.c @@ -0,0 +1,76 @@ +/* + * This program is used to generate definitions needed by + * assembly language modules. + * + * We use the technique used in the OSF Mach kernel code: + * generate asm statements containing #defines, + * compile this file to assembler, and then extract the + * #defines from the assembly-language output. + */ + +#include <linux/stddef.h> +#include <linux/sched.h> +#include <linux/kernel_stat.h> +#include <linux/ptrace.h> +#include <linux/hardirq.h> +#include <linux/kbuild.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/thread_info.h> + +int main(void) +{ + /* offsets into the task struct */ + DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); + DEFINE(TASK_MM, offsetof(struct task_struct, mm)); + + /* offsets into the irq_cpustat_t struct */ + DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); + + /* offsets into the thread struct */ + DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp)); + DEFINE(THREAD_USP, offsetof(struct thread_struct, usp)); + DEFINE(THREAD_SR, offsetof(struct thread_struct, sr)); + DEFINE(THREAD_FS, offsetof(struct thread_struct, fs)); + DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp)); + DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0)); + DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp)); + DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl)); + DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate)); + + /* offsets into the pt_regs */ + DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0)); + DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0)); + DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1)); + DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2)); + DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3)); + DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4)); + DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5)); + DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0)); + DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1)); + DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2)); + DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc)); + DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr)); + +#ifdef CONFIG_COLDFIRE + /* bitfields are a bit difficult */ + DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, sr) - 2); +#else + /* bitfields are a bit difficult */ + DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4); +#endif + + /* signal defines */ + DEFINE(SIGSEGV, SIGSEGV); + DEFINE(SEGV_MAPERR, SEGV_MAPERR); + DEFINE(SIGTRAP, SIGTRAP); + DEFINE(TRAP_TRACE, TRAP_TRACE); + + DEFINE(PT_PTRACED, PT_PTRACED); + + /* Offsets in thread_info structure */ + DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); + DEFINE(TI_PREEMPTCOUNT, offsetof(struct thread_info, preempt_count)); + + return 0; +} diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c index 4bbb3c2a8880..90e8cb726c8c 100644 --- a/arch/m68k/kernel/dma.c +++ b/arch/m68k/kernel/dma.c @@ -1,130 +1,5 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#undef DEBUG - -#include <linux/dma-mapping.h> -#include <linux/device.h> -#include <linux/kernel.h> -#include <linux/scatterlist.h> -#include <linux/slab.h> -#include <linux/vmalloc.h> - -#include <asm/pgalloc.h> - -void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *handle, gfp_t flag) -{ - struct page *page, **map; - pgprot_t pgprot; - void *addr; - int i, order; - - pr_debug("dma_alloc_coherent: %d,%x\n", size, flag); - - size = PAGE_ALIGN(size); - order = get_order(size); - - page = alloc_pages(flag, order); - if (!page) - return NULL; - - *handle = page_to_phys(page); - map = kmalloc(sizeof(struct page *) << order, flag & ~__GFP_DMA); - if (!map) { - __free_pages(page, order); - return NULL; - } - split_page(page, order); - - order = 1 << order; - size >>= PAGE_SHIFT; - map[0] = page; - for (i = 1; i < size; i++) - map[i] = page + i; - for (; i < order; i++) - __free_page(page + i); - pgprot = __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); - if (CPU_IS_040_OR_060) - pgprot_val(pgprot) |= _PAGE_GLOBAL040 | _PAGE_NOCACHE_S; - else - pgprot_val(pgprot) |= _PAGE_NOCACHE030; - addr = vmap(map, size, VM_MAP, pgprot); - kfree(map); - - return addr; -} -EXPORT_SYMBOL(dma_alloc_coherent); - -void dma_free_coherent(struct device *dev, size_t size, - void *addr, dma_addr_t handle) -{ - pr_debug("dma_free_coherent: %p, %x\n", addr, handle); - vfree(addr); -} -EXPORT_SYMBOL(dma_free_coherent); - -void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, - size_t size, enum dma_data_direction dir) -{ - switch (dir) { - case DMA_TO_DEVICE: - cache_push(handle, size); - break; - case DMA_FROM_DEVICE: - cache_clear(handle, size); - break; - default: - if (printk_ratelimit()) - printk("dma_sync_single_for_device: unsupported dir %u\n", dir); - break; - } -} -EXPORT_SYMBOL(dma_sync_single_for_device); - -void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir) -{ - int i; - - for (i = 0; i < nents; sg++, i++) - dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); -} -EXPORT_SYMBOL(dma_sync_sg_for_device); - -dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size, - enum dma_data_direction dir) -{ - dma_addr_t handle = virt_to_bus(addr); - - dma_sync_single_for_device(dev, handle, size, dir); - return handle; -} -EXPORT_SYMBOL(dma_map_single); - -dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir) -{ - dma_addr_t handle = page_to_phys(page) + offset; - - dma_sync_single_for_device(dev, handle, size, dir); - return handle; -} -EXPORT_SYMBOL(dma_map_page); - -int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir) -{ - int i; - - for (i = 0; i < nents; sg++, i++) { - sg->dma_address = sg_phys(sg); - dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); - } - return nents; -} -EXPORT_SYMBOL(dma_map_sg); +#ifdef CONFIG_MMU +#include "dma_mm.c" +#else +#include "dma_no.c" +#endif diff --git a/arch/m68k/kernel/dma_mm.c b/arch/m68k/kernel/dma_mm.c new file mode 100644 index 000000000000..4bbb3c2a8880 --- /dev/null +++ b/arch/m68k/kernel/dma_mm.c @@ -0,0 +1,130 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#undef DEBUG + +#include <linux/dma-mapping.h> +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/scatterlist.h> +#include <linux/slab.h> +#include <linux/vmalloc.h> + +#include <asm/pgalloc.h> + +void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t flag) +{ + struct page *page, **map; + pgprot_t pgprot; + void *addr; + int i, order; + + pr_debug("dma_alloc_coherent: %d,%x\n", size, flag); + + size = PAGE_ALIGN(size); + order = get_order(size); + + page = alloc_pages(flag, order); + if (!page) + return NULL; + + *handle = page_to_phys(page); + map = kmalloc(sizeof(struct page *) << order, flag & ~__GFP_DMA); + if (!map) { + __free_pages(page, order); + return NULL; + } + split_page(page, order); + + order = 1 << order; + size >>= PAGE_SHIFT; + map[0] = page; + for (i = 1; i < size; i++) + map[i] = page + i; + for (; i < order; i++) + __free_page(page + i); + pgprot = __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); + if (CPU_IS_040_OR_060) + pgprot_val(pgprot) |= _PAGE_GLOBAL040 | _PAGE_NOCACHE_S; + else + pgprot_val(pgprot) |= _PAGE_NOCACHE030; + addr = vmap(map, size, VM_MAP, pgprot); + kfree(map); + + return addr; +} +EXPORT_SYMBOL(dma_alloc_coherent); + +void dma_free_coherent(struct device *dev, size_t size, + void *addr, dma_addr_t handle) +{ + pr_debug("dma_free_coherent: %p, %x\n", addr, handle); + vfree(addr); +} +EXPORT_SYMBOL(dma_free_coherent); + +void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, + size_t size, enum dma_data_direction dir) +{ + switch (dir) { + case DMA_TO_DEVICE: + cache_push(handle, size); + break; + case DMA_FROM_DEVICE: + cache_clear(handle, size); + break; + default: + if (printk_ratelimit()) + printk("dma_sync_single_for_device: unsupported dir %u\n", dir); + break; + } +} +EXPORT_SYMBOL(dma_sync_single_for_device); + +void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction dir) +{ + int i; + + for (i = 0; i < nents; sg++, i++) + dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); +} +EXPORT_SYMBOL(dma_sync_sg_for_device); + +dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size, + enum dma_data_direction dir) +{ + dma_addr_t handle = virt_to_bus(addr); + + dma_sync_single_for_device(dev, handle, size, dir); + return handle; +} +EXPORT_SYMBOL(dma_map_single); + +dma_addr_t dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir) +{ + dma_addr_t handle = page_to_phys(page) + offset; + + dma_sync_single_for_device(dev, handle, size, dir); + return handle; +} +EXPORT_SYMBOL(dma_map_page); + +int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction dir) +{ + int i; + + for (i = 0; i < nents; sg++, i++) { + sg->dma_address = sg_phys(sg); + dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); + } + return nents; +} +EXPORT_SYMBOL(dma_map_sg); diff --git a/arch/m68k/kernel/dma_no.c b/arch/m68k/kernel/dma_no.c new file mode 100644 index 000000000000..fc61541aeb71 --- /dev/null +++ b/arch/m68k/kernel/dma_no.c @@ -0,0 +1,74 @@ +/* + * Dynamic DMA mapping support. + * + * We never have any address translations to worry about, so this + * is just alloc/free. + */ + +#include <linux/types.h> +#include <linux/gfp.h> +#include <linux/mm.h> +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <asm/cacheflush.h> + +void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp) +{ + void *ret; + /* ignore region specifiers */ + gfp &= ~(__GFP_DMA | __GFP_HIGHMEM); + + if (dev == NULL || (*dev->dma_mask < 0xffffffff)) + gfp |= GFP_DMA; + ret = (void *)__get_free_pages(gfp, get_order(size)); + + if (ret != NULL) { + memset(ret, 0, size); + *dma_handle = virt_to_phys(ret); + } + return ret; +} + +void dma_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle) +{ + free_pages((unsigned long)vaddr, get_order(size)); +} + +void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, + size_t size, enum dma_data_direction dir) +{ + switch (dir) { + case DMA_TO_DEVICE: + flush_dcache_range(handle, size); + break; + case DMA_FROM_DEVICE: + /* Should be clear already */ + break; + default: + if (printk_ratelimit()) + printk("dma_sync_single_for_device: unsupported dir %u\n", dir); + break; + } +} + +EXPORT_SYMBOL(dma_sync_single_for_device); +dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size, + enum dma_data_direction dir) +{ + dma_addr_t handle = virt_to_phys(addr); + flush_dcache_range(handle, size); + return handle; +} +EXPORT_SYMBOL(dma_map_single); + +dma_addr_t dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir) +{ + dma_addr_t handle = page_to_phys(page) + offset; + dma_sync_single_for_device(dev, handle, size, dir); + return handle; +} +EXPORT_SYMBOL(dma_map_page); diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 1559dea36e55..081cf96f243b 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -1,753 +1,5 @@ -/* -*- mode: asm -*- - * - * linux/arch/m68k/kernel/entry.S - * - * Copyright (C) 1991, 1992 Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file README.legal in the main directory of this archive - * for more details. - * - * Linux/m68k support by Hamish Macdonald - * - * 68060 fixes by Jesper Skov - * - */ - -/* - * entry.S contains the system-call and fault low-level handling routines. - * This also contains the timer-interrupt handler, as well as all interrupts - * and faults that can result in a task-switch. - * - * NOTE: This code handles signal-recognition, which happens every time - * after a timer-interrupt and after each system call. - * - */ - -/* - * 12/03/96 Jes: Currently we only support m68k single-cpu systems, so - * all pointers that used to be 'current' are now entry - * number 0 in the 'current_set' list. - * - * 6/05/00 RZ: addedd writeback completion after return from sighandler - * for 68040 - */ - -#include <linux/linkage.h> -#include <asm/entry.h> -#include <asm/errno.h> -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/traps.h> -#include <asm/unistd.h> - -#include <asm/asm-offsets.h> - -.globl system_call, buserr, trap, resume -.globl sys_call_table -.globl sys_fork, sys_clone, sys_vfork -.globl ret_from_interrupt, bad_interrupt -.globl auto_irqhandler_fixup -.globl user_irqvec_fixup, user_irqhandler_fixup - -.text -ENTRY(buserr) - SAVE_ALL_INT - GET_CURRENT(%d0) - movel %sp,%sp@- | stack frame pointer argument - bsrl buserr_c - addql #4,%sp - jra .Lret_from_exception - -ENTRY(trap) - SAVE_ALL_INT - GET_CURRENT(%d0) - movel %sp,%sp@- | stack frame pointer argument - bsrl trap_c - addql #4,%sp - jra .Lret_from_exception - - | After a fork we jump here directly from resume, - | so that %d1 contains the previous task - | schedule_tail now used regardless of CONFIG_SMP -ENTRY(ret_from_fork) - movel %d1,%sp@- - jsr schedule_tail - addql #4,%sp - jra .Lret_from_exception - -do_trace_entry: - movel #-ENOSYS,%sp@(PT_OFF_D0)| needed for strace - subql #4,%sp - SAVE_SWITCH_STACK - jbsr syscall_trace - RESTORE_SWITCH_STACK - addql #4,%sp - movel %sp@(PT_OFF_ORIG_D0),%d0 - cmpl #NR_syscalls,%d0 - jcs syscall -badsys: - movel #-ENOSYS,%sp@(PT_OFF_D0) - jra ret_from_syscall - -do_trace_exit: - subql #4,%sp - SAVE_SWITCH_STACK - jbsr syscall_trace - RESTORE_SWITCH_STACK - addql #4,%sp - jra .Lret_from_exception - -ENTRY(ret_from_signal) - tstb %curptr@(TASK_INFO+TINFO_FLAGS+2) - jge 1f - jbsr syscall_trace -1: RESTORE_SWITCH_STACK - addql #4,%sp -/* on 68040 complete pending writebacks if any */ -#ifdef CONFIG_M68040 - bfextu %sp@(PT_OFF_FORMATVEC){#0,#4},%d0 - subql #7,%d0 | bus error frame ? - jbne 1f - movel %sp,%sp@- - jbsr berr_040cleanup - addql #4,%sp -1: +#ifdef CONFIG_MMU +#include "entry_mm.S" +#else +#include "entry_no.S" #endif - jra .Lret_from_exception - -ENTRY(system_call) - SAVE_ALL_SYS - - GET_CURRENT(%d1) - | save top of frame - movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0) - - | syscall trace? - tstb %curptr@(TASK_INFO+TINFO_FLAGS+2) - jmi do_trace_entry - cmpl #NR_syscalls,%d0 - jcc badsys -syscall: - jbsr @(sys_call_table,%d0:l:4)@(0) - movel %d0,%sp@(PT_OFF_D0) | save the return value -ret_from_syscall: - |oriw #0x0700,%sr - movew %curptr@(TASK_INFO+TINFO_FLAGS+2),%d0 - jne syscall_exit_work -1: RESTORE_ALL - -syscall_exit_work: - btst #5,%sp@(PT_OFF_SR) | check if returning to kernel - bnes 1b | if so, skip resched, signals - lslw #1,%d0 - jcs do_trace_exit - jmi do_delayed_trace - lslw #8,%d0 - jmi do_signal_return - pea resume_userspace - jra schedule - - -ENTRY(ret_from_exception) -.Lret_from_exception: - btst #5,%sp@(PT_OFF_SR) | check if returning to kernel - bnes 1f | if so, skip resched, signals - | only allow interrupts when we are really the last one on the - | kernel stack, otherwise stack overflow can occur during - | heavy interrupt load - andw #ALLOWINT,%sr - -resume_userspace: - moveb %curptr@(TASK_INFO+TINFO_FLAGS+3),%d0 - jne exit_work -1: RESTORE_ALL - -exit_work: - | save top of frame - movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0) - lslb #1,%d0 - jmi do_signal_return - pea resume_userspace - jra schedule - - -do_signal_return: - |andw #ALLOWINT,%sr - subql #4,%sp | dummy return address - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - bsrl do_signal - addql #4,%sp - RESTORE_SWITCH_STACK - addql #4,%sp - jbra resume_userspace - -do_delayed_trace: - bclr #7,%sp@(PT_OFF_SR) | clear trace bit in SR - pea 1 | send SIGTRAP - movel %curptr,%sp@- - pea LSIGTRAP - jbsr send_sig - addql #8,%sp - addql #4,%sp - jbra resume_userspace - - -/* This is the main interrupt handler for autovector interrupts */ - -ENTRY(auto_inthandler) - SAVE_ALL_INT - GET_CURRENT(%d0) - addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) - | put exception # in d0 - bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 - subw #VEC_SPUR,%d0 - - movel %sp,%sp@- - movel %d0,%sp@- | put vector # on stack -auto_irqhandler_fixup = . + 2 - jsr __m68k_handle_int | process the IRQ - addql #8,%sp | pop parameters off stack - -ret_from_interrupt: - subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) - jeq ret_from_last_interrupt -2: RESTORE_ALL - - ALIGN -ret_from_last_interrupt: - moveq #(~ALLOWINT>>8)&0xff,%d0 - andb %sp@(PT_OFF_SR),%d0 - jne 2b - - /* check if we need to do software interrupts */ - tstl irq_stat+CPUSTAT_SOFTIRQ_PENDING - jeq .Lret_from_exception - pea ret_from_exception - jra do_softirq - -/* Handler for user defined interrupt vectors */ - -ENTRY(user_inthandler) - SAVE_ALL_INT - GET_CURRENT(%d0) - addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) - | put exception # in d0 - bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 -user_irqvec_fixup = . + 2 - subw #VEC_USER,%d0 - - movel %sp,%sp@- - movel %d0,%sp@- | put vector # on stack -user_irqhandler_fixup = . + 2 - jsr __m68k_handle_int | process the IRQ - addql #8,%sp | pop parameters off stack - - subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) - jeq ret_from_last_interrupt - RESTORE_ALL - -/* Handler for uninitialized and spurious interrupts */ - -ENTRY(bad_inthandler) - SAVE_ALL_INT - GET_CURRENT(%d0) - addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) - - movel %sp,%sp@- - jsr handle_badint - addql #4,%sp - - subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) - jeq ret_from_last_interrupt - RESTORE_ALL - - -ENTRY(sys_fork) - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr m68k_fork - addql #4,%sp - RESTORE_SWITCH_STACK - rts - -ENTRY(sys_clone) - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr m68k_clone - addql #4,%sp - RESTORE_SWITCH_STACK - rts - -ENTRY(sys_vfork) - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr m68k_vfork - addql #4,%sp - RESTORE_SWITCH_STACK - rts - -ENTRY(sys_sigreturn) - SAVE_SWITCH_STACK - jbsr do_sigreturn - RESTORE_SWITCH_STACK - rts - -ENTRY(sys_rt_sigreturn) - SAVE_SWITCH_STACK - jbsr do_rt_sigreturn - RESTORE_SWITCH_STACK - rts - -resume: - /* - * Beware - when entering resume, prev (the current task) is - * in a0, next (the new task) is in a1,so don't change these - * registers until their contents are no longer needed. - */ - - /* save sr */ - movew %sr,%a0@(TASK_THREAD+THREAD_SR) - - /* save fs (sfc,%dfc) (may be pointing to kernel memory) */ - movec %sfc,%d0 - movew %d0,%a0@(TASK_THREAD+THREAD_FS) - - /* save usp */ - /* it is better to use a movel here instead of a movew 8*) */ - movec %usp,%d0 - movel %d0,%a0@(TASK_THREAD+THREAD_USP) - - /* save non-scratch registers on stack */ - SAVE_SWITCH_STACK - - /* save current kernel stack pointer */ - movel %sp,%a0@(TASK_THREAD+THREAD_KSP) - - /* save floating point context */ -#ifndef CONFIG_M68KFPU_EMU_ONLY -#ifdef CONFIG_M68KFPU_EMU - tstl m68k_fputype - jeq 3f -#endif - fsave %a0@(TASK_THREAD+THREAD_FPSTATE) - -#if defined(CONFIG_M68060) -#if !defined(CPU_M68060_ONLY) - btst #3,m68k_cputype+3 - beqs 1f -#endif - /* The 060 FPU keeps status in bits 15-8 of the first longword */ - tstb %a0@(TASK_THREAD+THREAD_FPSTATE+2) - jeq 3f -#if !defined(CPU_M68060_ONLY) - jra 2f -#endif -#endif /* CONFIG_M68060 */ -#if !defined(CPU_M68060_ONLY) -1: tstb %a0@(TASK_THREAD+THREAD_FPSTATE) - jeq 3f -#endif -2: fmovemx %fp0-%fp7,%a0@(TASK_THREAD+THREAD_FPREG) - fmoveml %fpcr/%fpsr/%fpiar,%a0@(TASK_THREAD+THREAD_FPCNTL) -3: -#endif /* CONFIG_M68KFPU_EMU_ONLY */ - /* Return previous task in %d1 */ - movel %curptr,%d1 - - /* switch to new task (a1 contains new task) */ - movel %a1,%curptr - - /* restore floating point context */ -#ifndef CONFIG_M68KFPU_EMU_ONLY -#ifdef CONFIG_M68KFPU_EMU - tstl m68k_fputype - jeq 4f -#endif -#if defined(CONFIG_M68060) -#if !defined(CPU_M68060_ONLY) - btst #3,m68k_cputype+3 - beqs 1f -#endif - /* The 060 FPU keeps status in bits 15-8 of the first longword */ - tstb %a1@(TASK_THREAD+THREAD_FPSTATE+2) - jeq 3f -#if !defined(CPU_M68060_ONLY) - jra 2f -#endif -#endif /* CONFIG_M68060 */ -#if !defined(CPU_M68060_ONLY) -1: tstb %a1@(TASK_THREAD+THREAD_FPSTATE) - jeq 3f -#endif -2: fmovemx %a1@(TASK_THREAD+THREAD_FPREG),%fp0-%fp7 - fmoveml %a1@(TASK_THREAD+THREAD_FPCNTL),%fpcr/%fpsr/%fpiar -3: frestore %a1@(TASK_THREAD+THREAD_FPSTATE) -4: -#endif /* CONFIG_M68KFPU_EMU_ONLY */ - - /* restore the kernel stack pointer */ - movel %a1@(TASK_THREAD+THREAD_KSP),%sp - - /* restore non-scratch registers */ - RESTORE_SWITCH_STACK - - /* restore user stack pointer */ - movel %a1@(TASK_THREAD+THREAD_USP),%a0 - movel %a0,%usp - - /* restore fs (sfc,%dfc) */ - movew %a1@(TASK_THREAD+THREAD_FS),%a0 - movec %a0,%sfc - movec %a0,%dfc - - /* restore status register */ - movew %a1@(TASK_THREAD+THREAD_SR),%sr - - rts - -.data -ALIGN -sys_call_table: - .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ - .long sys_exit - .long sys_fork - .long sys_read - .long sys_write - .long sys_open /* 5 */ - .long sys_close - .long sys_waitpid - .long sys_creat - .long sys_link - .long sys_unlink /* 10 */ - .long sys_execve - .long sys_chdir - .long sys_time - .long sys_mknod - .long sys_chmod /* 15 */ - .long sys_chown16 - .long sys_ni_syscall /* old break syscall holder */ - .long sys_stat - .long sys_lseek - .long sys_getpid /* 20 */ - .long sys_mount - .long sys_oldumount - .long sys_setuid16 - .long sys_getuid16 - .long sys_stime /* 25 */ - .long sys_ptrace - .long sys_alarm - .long sys_fstat - .long sys_pause - .long sys_utime /* 30 */ - .long sys_ni_syscall /* old stty syscall holder */ - .long sys_ni_syscall /* old gtty syscall holder */ - .long sys_access - .long sys_nice - .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ - .long sys_sync - .long sys_kill - .long sys_rename - .long sys_mkdir - .long sys_rmdir /* 40 */ - .long sys_dup - .long sys_pipe - .long sys_times - .long sys_ni_syscall /* old prof syscall holder */ - .long sys_brk /* 45 */ - .long sys_setgid16 - .long sys_getgid16 - .long sys_signal - .long sys_geteuid16 - .long sys_getegid16 /* 50 */ - .long sys_acct - .long sys_umount /* recycled never used phys() */ - .long sys_ni_syscall /* old lock syscall holder */ - .long sys_ioctl - .long sys_fcntl /* 55 */ - .long sys_ni_syscall /* old mpx syscall holder */ - .long sys_setpgid - .long sys_ni_syscall /* old ulimit syscall holder */ - .long sys_ni_syscall - .long sys_umask /* 60 */ - .long sys_chroot - .long sys_ustat - .long sys_dup2 - .long sys_getppid - .long sys_getpgrp /* 65 */ - .long sys_setsid - .long sys_sigaction - .long sys_sgetmask - .long sys_ssetmask - .long sys_setreuid16 /* 70 */ - .long sys_setregid16 - .long sys_sigsuspend - .long sys_sigpending - .long sys_sethostname - .long sys_setrlimit /* 75 */ - .long sys_old_getrlimit - .long sys_getrusage - .long sys_gettimeofday - .long sys_settimeofday - .long sys_getgroups16 /* 80 */ - .long sys_setgroups16 - .long sys_old_select - .long sys_symlink - .long sys_lstat - .long sys_readlink /* 85 */ - .long sys_uselib - .long sys_swapon - .long sys_reboot - .long sys_old_readdir - .long sys_old_mmap /* 90 */ - .long sys_munmap - .long sys_truncate - .long sys_ftruncate - .long sys_fchmod - .long sys_fchown16 /* 95 */ - .long sys_getpriority - .long sys_setpriority - .long sys_ni_syscall /* old profil syscall holder */ - .long sys_statfs - .long sys_fstatfs /* 100 */ - .long sys_ni_syscall /* ioperm for i386 */ - .long sys_socketcall - .long sys_syslog - .long sys_setitimer - .long sys_getitimer /* 105 */ - .long sys_newstat - .long sys_newlstat - .long sys_newfstat - .long sys_ni_syscall - .long sys_ni_syscall /* 110 */ /* iopl for i386 */ - .long sys_vhangup - .long sys_ni_syscall /* obsolete idle() syscall */ - .long sys_ni_syscall /* vm86old for i386 */ - .long sys_wait4 - .long sys_swapoff /* 115 */ - .long sys_sysinfo - .long sys_ipc - .long sys_fsync - .long sys_sigreturn - .long sys_clone /* 120 */ - .long sys_setdomainname - .long sys_newuname - .long sys_cacheflush /* modify_ldt for i386 */ - .long sys_adjtimex - .long sys_mprotect /* 125 */ - .long sys_sigprocmask - .long sys_ni_syscall /* old "create_module" */ - .long sys_init_module - .long sys_delete_module - .long sys_ni_syscall /* 130 - old "get_kernel_syms" */ - .long sys_quotactl - .long sys_getpgid - .long sys_fchdir - .long sys_bdflush - .long sys_sysfs /* 135 */ - .long sys_personality - .long sys_ni_syscall /* for afs_syscall */ - .long sys_setfsuid16 - .long sys_setfsgid16 - .long sys_llseek /* 140 */ - .long sys_getdents - .long sys_select - .long sys_flock - .long sys_msync - .long sys_readv /* 145 */ - .long sys_writev - .long sys_getsid - .long sys_fdatasync - .long sys_sysctl - .long sys_mlock /* 150 */ - .long sys_munlock - .long sys_mlockall - .long sys_munlockall - .long sys_sched_setparam - .long sys_sched_getparam /* 155 */ - .long sys_sched_setscheduler - .long sys_sched_getscheduler - .long sys_sched_yield - .long sys_sched_get_priority_max - .long sys_sched_get_priority_min /* 160 */ - .long sys_sched_rr_get_interval - .long sys_nanosleep - .long sys_mremap - .long sys_setresuid16 - .long sys_getresuid16 /* 165 */ - .long sys_getpagesize - .long sys_ni_syscall /* old sys_query_module */ - .long sys_poll - .long sys_nfsservctl - .long sys_setresgid16 /* 170 */ - .long sys_getresgid16 - .long sys_prctl - .long sys_rt_sigreturn - .long sys_rt_sigaction - .long sys_rt_sigprocmask /* 175 */ - .long sys_rt_sigpending - .long sys_rt_sigtimedwait - .long sys_rt_sigqueueinfo - .long sys_rt_sigsuspend - .long sys_pread64 /* 180 */ - .long sys_pwrite64 - .long sys_lchown16; - .long sys_getcwd - .long sys_capget - .long sys_capset /* 185 */ - .long sys_sigaltstack - .long sys_sendfile - .long sys_ni_syscall /* streams1 */ - .long sys_ni_syscall /* streams2 */ - .long sys_vfork /* 190 */ - .long sys_getrlimit - .long sys_mmap2 - .long sys_truncate64 - .long sys_ftruncate64 - .long sys_stat64 /* 195 */ - .long sys_lstat64 - .long sys_fstat64 - .long sys_chown - .long sys_getuid - .long sys_getgid /* 200 */ - .long sys_geteuid - .long sys_getegid - .long sys_setreuid - .long sys_setregid - .long sys_getgroups /* 205 */ - .long sys_setgroups - .long sys_fchown - .long sys_setresuid - .long sys_getresuid - .long sys_setresgid /* 210 */ - .long sys_getresgid - .long sys_lchown - .long sys_setuid - .long sys_setgid - .long sys_setfsuid /* 215 */ - .long sys_setfsgid - .long sys_pivot_root - .long sys_ni_syscall - .long sys_ni_syscall - .long sys_getdents64 /* 220 */ - .long sys_gettid - .long sys_tkill - .long sys_setxattr - .long sys_lsetxattr - .long sys_fsetxattr /* 225 */ - .long sys_getxattr - .long sys_lgetxattr - .long sys_fgetxattr - .long sys_listxattr - .long sys_llistxattr /* 230 */ - .long sys_flistxattr - .long sys_removexattr - .long sys_lremovexattr - .long sys_fremovexattr - .long sys_futex /* 235 */ - .long sys_sendfile64 - .long sys_mincore - .long sys_madvise - .long sys_fcntl64 - .long sys_readahead /* 240 */ - .long sys_io_setup - .long sys_io_destroy - .long sys_io_getevents - .long sys_io_submit - .long sys_io_cancel /* 245 */ - .long sys_fadvise64 - .long sys_exit_group - .long sys_lookup_dcookie - .long sys_epoll_create - .long sys_epoll_ctl /* 250 */ - .long sys_epoll_wait - .long sys_remap_file_pages - .long sys_set_tid_address - .long sys_timer_create - .long sys_timer_settime /* 255 */ - .long sys_timer_gettime - .long sys_timer_getoverrun - .long sys_timer_delete - .long sys_clock_settime - .long sys_clock_gettime /* 260 */ - .long sys_clock_getres - .long sys_clock_nanosleep - .long sys_statfs64 - .long sys_fstatfs64 - .long sys_tgkill /* 265 */ - .long sys_utimes - .long sys_fadvise64_64 - .long sys_mbind - .long sys_get_mempolicy - .long sys_set_mempolicy /* 270 */ - .long sys_mq_open - .long sys_mq_unlink - .long sys_mq_timedsend - .long sys_mq_timedreceive - .long sys_mq_notify /* 275 */ - .long sys_mq_getsetattr - .long sys_waitid - .long sys_ni_syscall /* for sys_vserver */ - .long sys_add_key - .long sys_request_key /* 280 */ - .long sys_keyctl - .long sys_ioprio_set - .long sys_ioprio_get - .long sys_inotify_init - .long sys_inotify_add_watch /* 285 */ - .long sys_inotify_rm_watch - .long sys_migrate_pages - .long sys_openat - .long sys_mkdirat - .long sys_mknodat /* 290 */ - .long sys_fchownat - .long sys_futimesat - .long sys_fstatat64 - .long sys_unlinkat - .long sys_renameat /* 295 */ - .long sys_linkat - .long sys_symlinkat - .long sys_readlinkat - .long sys_fchmodat - .long sys_faccessat /* 300 */ - .long sys_ni_syscall /* Reserved for pselect6 */ - .long sys_ni_syscall /* Reserved for ppoll */ - .long sys_unshare - .long sys_set_robust_list - .long sys_get_robust_list /* 305 */ - .long sys_splice - .long sys_sync_file_range - .long sys_tee - .long sys_vmsplice - .long sys_move_pages /* 310 */ - .long sys_sched_setaffinity - .long sys_sched_getaffinity - .long sys_kexec_load - .long sys_getcpu - .long sys_epoll_pwait /* 315 */ - .long sys_utimensat - .long sys_signalfd - .long sys_timerfd_create - .long sys_eventfd - .long sys_fallocate /* 320 */ - .long sys_timerfd_settime - .long sys_timerfd_gettime - .long sys_signalfd4 - .long sys_eventfd2 - .long sys_epoll_create1 /* 325 */ - .long sys_dup3 - .long sys_pipe2 - .long sys_inotify_init1 - .long sys_preadv - .long sys_pwritev /* 330 */ - .long sys_rt_tgsigqueueinfo - .long sys_perf_event_open - .long sys_get_thread_area - .long sys_set_thread_area - .long sys_atomic_cmpxchg_32 /* 335 */ - .long sys_atomic_barrier - .long sys_fanotify_init - .long sys_fanotify_mark - .long sys_prlimit64 - diff --git a/arch/m68k/kernel/entry_mm.S b/arch/m68k/kernel/entry_mm.S new file mode 100644 index 000000000000..1559dea36e55 --- /dev/null +++ b/arch/m68k/kernel/entry_mm.S @@ -0,0 +1,753 @@ +/* -*- mode: asm -*- + * + * linux/arch/m68k/kernel/entry.S + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file README.legal in the main directory of this archive + * for more details. + * + * Linux/m68k support by Hamish Macdonald + * + * 68060 fixes by Jesper Skov + * + */ + +/* + * entry.S contains the system-call and fault low-level handling routines. + * This also contains the timer-interrupt handler, as well as all interrupts + * and faults that can result in a task-switch. + * + * NOTE: This code handles signal-recognition, which happens every time + * after a timer-interrupt and after each system call. + * + */ + +/* + * 12/03/96 Jes: Currently we only support m68k single-cpu systems, so + * all pointers that used to be 'current' are now entry + * number 0 in the 'current_set' list. + * + * 6/05/00 RZ: addedd writeback completion after return from sighandler + * for 68040 + */ + +#include <linux/linkage.h> +#include <asm/entry.h> +#include <asm/errno.h> +#include <asm/setup.h> +#include <asm/segment.h> +#include <asm/traps.h> +#include <asm/unistd.h> + +#include <asm/asm-offsets.h> + +.globl system_call, buserr, trap, resume +.globl sys_call_table +.globl sys_fork, sys_clone, sys_vfork +.globl ret_from_interrupt, bad_interrupt +.globl auto_irqhandler_fixup +.globl user_irqvec_fixup, user_irqhandler_fixup + +.text +ENTRY(buserr) + SAVE_ALL_INT + GET_CURRENT(%d0) + movel %sp,%sp@- | stack frame pointer argument + bsrl buserr_c + addql #4,%sp + jra .Lret_from_exception + +ENTRY(trap) + SAVE_ALL_INT + GET_CURRENT(%d0) + movel %sp,%sp@- | stack frame pointer argument + bsrl trap_c + addql #4,%sp + jra .Lret_from_exception + + | After a fork we jump here directly from resume, + | so that %d1 contains the previous task + | schedule_tail now used regardless of CONFIG_SMP +ENTRY(ret_from_fork) + movel %d1,%sp@- + jsr schedule_tail + addql #4,%sp + jra .Lret_from_exception + +do_trace_entry: + movel #-ENOSYS,%sp@(PT_OFF_D0)| needed for strace + subql #4,%sp + SAVE_SWITCH_STACK + jbsr syscall_trace + RESTORE_SWITCH_STACK + addql #4,%sp + movel %sp@(PT_OFF_ORIG_D0),%d0 + cmpl #NR_syscalls,%d0 + jcs syscall +badsys: + movel #-ENOSYS,%sp@(PT_OFF_D0) + jra ret_from_syscall + +do_trace_exit: + subql #4,%sp + SAVE_SWITCH_STACK + jbsr syscall_trace + RESTORE_SWITCH_STACK + addql #4,%sp + jra .Lret_from_exception + +ENTRY(ret_from_signal) + tstb %curptr@(TASK_INFO+TINFO_FLAGS+2) + jge 1f + jbsr syscall_trace +1: RESTORE_SWITCH_STACK + addql #4,%sp +/* on 68040 complete pending writebacks if any */ +#ifdef CONFIG_M68040 + bfextu %sp@(PT_OFF_FORMATVEC){#0,#4},%d0 + subql #7,%d0 | bus error frame ? + jbne 1f + movel %sp,%sp@- + jbsr berr_040cleanup + addql #4,%sp +1: +#endif + jra .Lret_from_exception + +ENTRY(system_call) + SAVE_ALL_SYS + + GET_CURRENT(%d1) + | save top of frame + movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0) + + | syscall trace? + tstb %curptr@(TASK_INFO+TINFO_FLAGS+2) + jmi do_trace_entry + cmpl #NR_syscalls,%d0 + jcc badsys +syscall: + jbsr @(sys_call_table,%d0:l:4)@(0) + movel %d0,%sp@(PT_OFF_D0) | save the return value +ret_from_syscall: + |oriw #0x0700,%sr + movew %curptr@(TASK_INFO+TINFO_FLAGS+2),%d0 + jne syscall_exit_work +1: RESTORE_ALL + +syscall_exit_work: + btst #5,%sp@(PT_OFF_SR) | check if returning to kernel + bnes 1b | if so, skip resched, signals + lslw #1,%d0 + jcs do_trace_exit + jmi do_delayed_trace + lslw #8,%d0 + jmi do_signal_return + pea resume_userspace + jra schedule + + +ENTRY(ret_from_exception) +.Lret_from_exception: + btst #5,%sp@(PT_OFF_SR) | check if returning to kernel + bnes 1f | if so, skip resched, signals + | only allow interrupts when we are really the last one on the + | kernel stack, otherwise stack overflow can occur during + | heavy interrupt load + andw #ALLOWINT,%sr + +resume_userspace: + moveb %curptr@(TASK_INFO+TINFO_FLAGS+3),%d0 + jne exit_work +1: RESTORE_ALL + +exit_work: + | save top of frame + movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0) + lslb #1,%d0 + jmi do_signal_return + pea resume_userspace + jra schedule + + +do_signal_return: + |andw #ALLOWINT,%sr + subql #4,%sp | dummy return address + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + bsrl do_signal + addql #4,%sp + RESTORE_SWITCH_STACK + addql #4,%sp + jbra resume_userspace + +do_delayed_trace: + bclr #7,%sp@(PT_OFF_SR) | clear trace bit in SR + pea 1 | send SIGTRAP + movel %curptr,%sp@- + pea LSIGTRAP + jbsr send_sig + addql #8,%sp + addql #4,%sp + jbra resume_userspace + + +/* This is the main interrupt handler for autovector interrupts */ + +ENTRY(auto_inthandler) + SAVE_ALL_INT + GET_CURRENT(%d0) + addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + | put exception # in d0 + bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 + subw #VEC_SPUR,%d0 + + movel %sp,%sp@- + movel %d0,%sp@- | put vector # on stack +auto_irqhandler_fixup = . + 2 + jsr __m68k_handle_int | process the IRQ + addql #8,%sp | pop parameters off stack + +ret_from_interrupt: + subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + jeq ret_from_last_interrupt +2: RESTORE_ALL + + ALIGN +ret_from_last_interrupt: + moveq #(~ALLOWINT>>8)&0xff,%d0 + andb %sp@(PT_OFF_SR),%d0 + jne 2b + + /* check if we need to do software interrupts */ + tstl irq_stat+CPUSTAT_SOFTIRQ_PENDING + jeq .Lret_from_exception + pea ret_from_exception + jra do_softirq + +/* Handler for user defined interrupt vectors */ + +ENTRY(user_inthandler) + SAVE_ALL_INT + GET_CURRENT(%d0) + addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + | put exception # in d0 + bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 +user_irqvec_fixup = . + 2 + subw #VEC_USER,%d0 + + movel %sp,%sp@- + movel %d0,%sp@- | put vector # on stack +user_irqhandler_fixup = . + 2 + jsr __m68k_handle_int | process the IRQ + addql #8,%sp | pop parameters off stack + + subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + jeq ret_from_last_interrupt + RESTORE_ALL + +/* Handler for uninitialized and spurious interrupts */ + +ENTRY(bad_inthandler) + SAVE_ALL_INT + GET_CURRENT(%d0) + addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + + movel %sp,%sp@- + jsr handle_badint + addql #4,%sp + + subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1) + jeq ret_from_last_interrupt + RESTORE_ALL + + +ENTRY(sys_fork) + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + jbsr m68k_fork + addql #4,%sp + RESTORE_SWITCH_STACK + rts + +ENTRY(sys_clone) + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + jbsr m68k_clone + addql #4,%sp + RESTORE_SWITCH_STACK + rts + +ENTRY(sys_vfork) + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + jbsr m68k_vfork + addql #4,%sp + RESTORE_SWITCH_STACK + rts + +ENTRY(sys_sigreturn) + SAVE_SWITCH_STACK + jbsr do_sigreturn + RESTORE_SWITCH_STACK + rts + +ENTRY(sys_rt_sigreturn) + SAVE_SWITCH_STACK + jbsr do_rt_sigreturn + RESTORE_SWITCH_STACK + rts + +resume: + /* + * Beware - when entering resume, prev (the current task) is + * in a0, next (the new task) is in a1,so don't change these + * registers until their contents are no longer needed. + */ + + /* save sr */ + movew %sr,%a0@(TASK_THREAD+THREAD_SR) + + /* save fs (sfc,%dfc) (may be pointing to kernel memory) */ + movec %sfc,%d0 + movew %d0,%a0@(TASK_THREAD+THREAD_FS) + + /* save usp */ + /* it is better to use a movel here instead of a movew 8*) */ + movec %usp,%d0 + movel %d0,%a0@(TASK_THREAD+THREAD_USP) + + /* save non-scratch registers on stack */ + SAVE_SWITCH_STACK + + /* save current kernel stack pointer */ + movel %sp,%a0@(TASK_THREAD+THREAD_KSP) + + /* save floating point context */ +#ifndef CONFIG_M68KFPU_EMU_ONLY +#ifdef CONFIG_M68KFPU_EMU + tstl m68k_fputype + jeq 3f +#endif + fsave %a0@(TASK_THREAD+THREAD_FPSTATE) + +#if defined(CONFIG_M68060) +#if !defined(CPU_M68060_ONLY) + btst #3,m68k_cputype+3 + beqs 1f +#endif + /* The 060 FPU keeps status in bits 15-8 of the first longword */ + tstb %a0@(TASK_THREAD+THREAD_FPSTATE+2) + jeq 3f +#if !defined(CPU_M68060_ONLY) + jra 2f +#endif +#endif /* CONFIG_M68060 */ +#if !defined(CPU_M68060_ONLY) +1: tstb %a0@(TASK_THREAD+THREAD_FPSTATE) + jeq 3f +#endif +2: fmovemx %fp0-%fp7,%a0@(TASK_THREAD+THREAD_FPREG) + fmoveml %fpcr/%fpsr/%fpiar,%a0@(TASK_THREAD+THREAD_FPCNTL) +3: +#endif /* CONFIG_M68KFPU_EMU_ONLY */ + /* Return previous task in %d1 */ + movel %curptr,%d1 + + /* switch to new task (a1 contains new task) */ + movel %a1,%curptr + + /* restore floating point context */ +#ifndef CONFIG_M68KFPU_EMU_ONLY +#ifdef CONFIG_M68KFPU_EMU + tstl m68k_fputype + jeq 4f +#endif +#if defined(CONFIG_M68060) +#if !defined(CPU_M68060_ONLY) + btst #3,m68k_cputype+3 + beqs 1f +#endif + /* The 060 FPU keeps status in bits 15-8 of the first longword */ + tstb %a1@(TASK_THREAD+THREAD_FPSTATE+2) + jeq 3f +#if !defined(CPU_M68060_ONLY) + jra 2f +#endif +#endif /* CONFIG_M68060 */ +#if !defined(CPU_M68060_ONLY) +1: tstb %a1@(TASK_THREAD+THREAD_FPSTATE) + jeq 3f +#endif +2: fmovemx %a1@(TASK_THREAD+THREAD_FPREG),%fp0-%fp7 + fmoveml %a1@(TASK_THREAD+THREAD_FPCNTL),%fpcr/%fpsr/%fpiar +3: frestore %a1@(TASK_THREAD+THREAD_FPSTATE) +4: +#endif /* CONFIG_M68KFPU_EMU_ONLY */ + + /* restore the kernel stack pointer */ + movel %a1@(TASK_THREAD+THREAD_KSP),%sp + + /* restore non-scratch registers */ + RESTORE_SWITCH_STACK + + /* restore user stack pointer */ + movel %a1@(TASK_THREAD+THREAD_USP),%a0 + movel %a0,%usp + + /* restore fs (sfc,%dfc) */ + movew %a1@(TASK_THREAD+THREAD_FS),%a0 + movec %a0,%sfc + movec %a0,%dfc + + /* restore status register */ + movew %a1@(TASK_THREAD+THREAD_SR),%sr + + rts + +.data +ALIGN +sys_call_table: + .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ + .long sys_exit + .long sys_fork + .long sys_read + .long sys_write + .long sys_open /* 5 */ + .long sys_close + .long sys_waitpid + .long sys_creat + .long sys_link + .long sys_unlink /* 10 */ + .long sys_execve + .long sys_chdir + .long sys_time + .long sys_mknod + .long sys_chmod /* 15 */ + .long sys_chown16 + .long sys_ni_syscall /* old break syscall holder */ + .long sys_stat + .long sys_lseek + .long sys_getpid /* 20 */ + .long sys_mount + .long sys_oldumount + .long sys_setuid16 + .long sys_getuid16 + .long sys_stime /* 25 */ + .long sys_ptrace + .long sys_alarm + .long sys_fstat + .long sys_pause + .long sys_utime /* 30 */ + .long sys_ni_syscall /* old stty syscall holder */ + .long sys_ni_syscall /* old gtty syscall holder */ + .long sys_access + .long sys_nice + .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ + .long sys_sync + .long sys_kill + .long sys_rename + .long sys_mkdir + .long sys_rmdir /* 40 */ + .long sys_dup + .long sys_pipe + .long sys_times + .long sys_ni_syscall /* old prof syscall holder */ + .long sys_brk /* 45 */ + .long sys_setgid16 + .long sys_getgid16 + .long sys_signal + .long sys_geteuid16 + .long sys_getegid16 /* 50 */ + .long sys_acct + .long sys_umount /* recycled never used phys() */ + .long sys_ni_syscall /* old lock syscall holder */ + .long sys_ioctl + .long sys_fcntl /* 55 */ + .long sys_ni_syscall /* old mpx syscall holder */ + .long sys_setpgid + .long sys_ni_syscall /* old ulimit syscall holder */ + .long sys_ni_syscall + .long sys_umask /* 60 */ + .long sys_chroot + .long sys_ustat + .long sys_dup2 + .long sys_getppid + .long sys_getpgrp /* 65 */ + .long sys_setsid + .long sys_sigaction + .long sys_sgetmask + .long sys_ssetmask + .long sys_setreuid16 /* 70 */ + .long sys_setregid16 + .long sys_sigsuspend + .long sys_sigpending + .long sys_sethostname + .long sys_setrlimit /* 75 */ + .long sys_old_getrlimit + .long sys_getrusage + .long sys_gettimeofday + .long sys_settimeofday + .long sys_getgroups16 /* 80 */ + .long sys_setgroups16 + .long sys_old_select + .long sys_symlink + .long sys_lstat + .long sys_readlink /* 85 */ + .long sys_uselib + .long sys_swapon + .long sys_reboot + .long sys_old_readdir + .long sys_old_mmap /* 90 */ + .long sys_munmap + .long sys_truncate + .long sys_ftruncate + .long sys_fchmod + .long sys_fchown16 /* 95 */ + .long sys_getpriority + .long sys_setpriority + .long sys_ni_syscall /* old profil syscall holder */ + .long sys_statfs + .long sys_fstatfs /* 100 */ + .long sys_ni_syscall /* ioperm for i386 */ + .long sys_socketcall + .long sys_syslog + .long sys_setitimer + .long sys_getitimer /* 105 */ + .long sys_newstat + .long sys_newlstat + .long sys_newfstat + .long sys_ni_syscall + .long sys_ni_syscall /* 110 */ /* iopl for i386 */ + .long sys_vhangup + .long sys_ni_syscall /* obsolete idle() syscall */ + .long sys_ni_syscall /* vm86old for i386 */ + .long sys_wait4 + .long sys_swapoff /* 115 */ + .long sys_sysinfo + .long sys_ipc + .long sys_fsync + .long sys_sigreturn + .long sys_clone /* 120 */ + .long sys_setdomainname + .long sys_newuname + .long sys_cacheflush /* modify_ldt for i386 */ + .long sys_adjtimex + .long sys_mprotect /* 125 */ + .long sys_sigprocmask + .long sys_ni_syscall /* old "create_module" */ + .long sys_init_module + .long sys_delete_module + .long sys_ni_syscall /* 130 - old "get_kernel_syms" */ + .long sys_quotactl + .long sys_getpgid + .long sys_fchdir + .long sys_bdflush + .long sys_sysfs /* 135 */ + .long sys_personality + .long sys_ni_syscall /* for afs_syscall */ + .long sys_setfsuid16 + .long sys_setfsgid16 + .long sys_llseek /* 140 */ + .long sys_getdents + .long sys_select + .long sys_flock + .long sys_msync + .long sys_readv /* 145 */ + .long sys_writev + .long sys_getsid + .long sys_fdatasync + .long sys_sysctl + .long sys_mlock /* 150 */ + .long sys_munlock + .long sys_mlockall + .long sys_munlockall + .long sys_sched_setparam + .long sys_sched_getparam /* 155 */ + .long sys_sched_setscheduler + .long sys_sched_getscheduler + .long sys_sched_yield + .long sys_sched_get_priority_max + .long sys_sched_get_priority_min /* 160 */ + .long sys_sched_rr_get_interval + .long sys_nanosleep + .long sys_mremap + .long sys_setresuid16 + .long sys_getresuid16 /* 165 */ + .long sys_getpagesize + .long sys_ni_syscall /* old sys_query_module */ + .long sys_poll + .long sys_nfsservctl + .long sys_setresgid16 /* 170 */ + .long sys_getresgid16 + .long sys_prctl + .long sys_rt_sigreturn + .long sys_rt_sigaction + .long sys_rt_sigprocmask /* 175 */ + .long sys_rt_sigpending + .long sys_rt_sigtimedwait + .long sys_rt_sigqueueinfo + .long sys_rt_sigsuspend + .long sys_pread64 /* 180 */ + .long sys_pwrite64 + .long sys_lchown16; + .long sys_getcwd + .long sys_capget + .long sys_capset /* 185 */ + .long sys_sigaltstack + .long sys_sendfile + .long sys_ni_syscall /* streams1 */ + .long sys_ni_syscall /* streams2 */ + .long sys_vfork /* 190 */ + .long sys_getrlimit + .long sys_mmap2 + .long sys_truncate64 + .long sys_ftruncate64 + .long sys_stat64 /* 195 */ + .long sys_lstat64 + .long sys_fstat64 + .long sys_chown + .long sys_getuid + .long sys_getgid /* 200 */ + .long sys_geteuid + .long sys_getegid + .long sys_setreuid + .long sys_setregid + .long sys_getgroups /* 205 */ + .long sys_setgroups + .long sys_fchown + .long sys_setresuid + .long sys_getresuid + .long sys_setresgid /* 210 */ + .long sys_getresgid + .long sys_lchown + .long sys_setuid + .long sys_setgid + .long sys_setfsuid /* 215 */ + .long sys_setfsgid + .long sys_pivot_root + .long sys_ni_syscall + .long sys_ni_syscall + .long sys_getdents64 /* 220 */ + .long sys_gettid + .long sys_tkill + .long sys_setxattr + .long sys_lsetxattr + .long sys_fsetxattr /* 225 */ + .long sys_getxattr + .long sys_lgetxattr + .long sys_fgetxattr + .long sys_listxattr + .long sys_llistxattr /* 230 */ + .long sys_flistxattr + .long sys_removexattr + .long sys_lremovexattr + .long sys_fremovexattr + .long sys_futex /* 235 */ + .long sys_sendfile64 + .long sys_mincore + .long sys_madvise + .long sys_fcntl64 + .long sys_readahead /* 240 */ + .long sys_io_setup + .long sys_io_destroy + .long sys_io_getevents + .long sys_io_submit + .long sys_io_cancel /* 245 */ + .long sys_fadvise64 + .long sys_exit_group + .long sys_lookup_dcookie + .long sys_epoll_create + .long sys_epoll_ctl /* 250 */ + .long sys_epoll_wait + .long sys_remap_file_pages + .long sys_set_tid_address + .long sys_timer_create + .long sys_timer_settime /* 255 */ + .long sys_timer_gettime + .long sys_timer_getoverrun + .long sys_timer_delete + .long sys_clock_settime + .long sys_clock_gettime /* 260 */ + .long sys_clock_getres + .long sys_clock_nanosleep + .long sys_statfs64 + .long sys_fstatfs64 + .long sys_tgkill /* 265 */ + .long sys_utimes + .long sys_fadvise64_64 + .long sys_mbind + .long sys_get_mempolicy + .long sys_set_mempolicy /* 270 */ + .long sys_mq_open + .long sys_mq_unlink + .long sys_mq_timedsend + .long sys_mq_timedreceive + .long sys_mq_notify /* 275 */ + .long sys_mq_getsetattr + .long sys_waitid + .long sys_ni_syscall /* for sys_vserver */ + .long sys_add_key + .long sys_request_key /* 280 */ + .long sys_keyctl + .long sys_ioprio_set + .long sys_ioprio_get + .long sys_inotify_init + .long sys_inotify_add_watch /* 285 */ + .long sys_inotify_rm_watch + .long sys_migrate_pages + .long sys_openat + .long sys_mkdirat + .long sys_mknodat /* 290 */ + .long sys_fchownat + .long sys_futimesat + .long sys_fstatat64 + .long sys_unlinkat + .long sys_renameat /* 295 */ + .long sys_linkat + .long sys_symlinkat + .long sys_readlinkat + .long sys_fchmodat + .long sys_faccessat /* 300 */ + .long sys_ni_syscall /* Reserved for pselect6 */ + .long sys_ni_syscall /* Reserved for ppoll */ + .long sys_unshare + .long sys_set_robust_list + .long sys_get_robust_list /* 305 */ + .long sys_splice + .long sys_sync_file_range + .long sys_tee + .long sys_vmsplice + .long sys_move_pages /* 310 */ + .long sys_sched_setaffinity + .long sys_sched_getaffinity + .long sys_kexec_load + .long sys_getcpu + .long sys_epoll_pwait /* 315 */ + .long sys_utimensat + .long sys_signalfd + .long sys_timerfd_create + .long sys_eventfd + .long sys_fallocate /* 320 */ + .long sys_timerfd_settime + .long sys_timerfd_gettime + .long sys_signalfd4 + .long sys_eventfd2 + .long sys_epoll_create1 /* 325 */ + .long sys_dup3 + .long sys_pipe2 + .long sys_inotify_init1 + .long sys_preadv + .long sys_pwritev /* 330 */ + .long sys_rt_tgsigqueueinfo + .long sys_perf_event_open + .long sys_get_thread_area + .long sys_set_thread_area + .long sys_atomic_cmpxchg_32 /* 335 */ + .long sys_atomic_barrier + .long sys_fanotify_init + .long sys_fanotify_mark + .long sys_prlimit64 + diff --git a/arch/m68k/kernel/entry_no.S b/arch/m68k/kernel/entry_no.S new file mode 100644 index 000000000000..2783f25e38bd --- /dev/null +++ b/arch/m68k/kernel/entry_no.S @@ -0,0 +1,134 @@ +/* + * linux/arch/m68knommu/kernel/entry.S + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * Copyright (C) 2000 Lineo Inc. (www.lineo.com) + * + * Based on: + * + * linux/arch/m68k/kernel/entry.S + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file README.legal in the main directory of this archive + * for more details. + * + * Linux/m68k support by Hamish Macdonald + * + * 68060 fixes by Jesper Skov + * ColdFire support by Greg Ungerer (gerg@snapgear.com) + * 5307 fixes by David W. Miller + * linux 2.4 support David McCullough <davidm@snapgear.com> + */ + +#include <linux/sys.h> +#include <linux/linkage.h> +#include <asm/errno.h> +#include <asm/setup.h> +#include <asm/segment.h> +#include <asm/asm-offsets.h> +#include <asm/entry.h> +#include <asm/unistd.h> + +.text + +.globl buserr +.globl trap +.globl ret_from_exception +.globl ret_from_signal +.globl sys_fork +.globl sys_clone +.globl sys_vfork + +ENTRY(buserr) + SAVE_ALL + moveq #-1,%d0 + movel %d0,%sp@(PT_OFF_ORIG_D0) + movel %sp,%sp@- /* stack frame pointer argument */ + jsr buserr_c + addql #4,%sp + jra ret_from_exception + +ENTRY(trap) + SAVE_ALL + moveq #-1,%d0 + movel %d0,%sp@(PT_OFF_ORIG_D0) + movel %sp,%sp@- /* stack frame pointer argument */ + jsr trap_c + addql #4,%sp + jra ret_from_exception + +#ifdef TRAP_DBG_INTERRUPT + +.globl dbginterrupt +ENTRY(dbginterrupt) + SAVE_ALL + moveq #-1,%d0 + movel %d0,%sp@(PT_OFF_ORIG_D0) + movel %sp,%sp@- /* stack frame pointer argument */ + jsr dbginterrupt_c + addql #4,%sp + jra ret_from_exception +#endif + +ENTRY(reschedule) + /* save top of frame */ + pea %sp@ + jbsr set_esp0 + addql #4,%sp + pea ret_from_exception + jmp schedule + +ENTRY(ret_from_fork) + movel %d1,%sp@- + jsr schedule_tail + addql #4,%sp + jra ret_from_exception + +ENTRY(sys_fork) + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + jbsr m68k_fork + addql #4,%sp + RESTORE_SWITCH_STACK + rts + +ENTRY(sys_vfork) + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + jbsr m68k_vfork + addql #4,%sp + RESTORE_SWITCH_STACK + rts + +ENTRY(sys_clone) + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + jbsr m68k_clone + addql #4,%sp + RESTORE_SWITCH_STACK + rts + +ENTRY(sys_sigreturn) + SAVE_SWITCH_STACK + jbsr do_sigreturn + RESTORE_SWITCH_STACK + rts + +ENTRY(sys_rt_sigreturn) + SAVE_SWITCH_STACK + jbsr do_rt_sigreturn + RESTORE_SWITCH_STACK + rts + +ENTRY(ret_from_user_signal) + moveq #__NR_sigreturn,%d0 + trap #0 + +ENTRY(ret_from_user_rt_signal) + movel #__NR_rt_sigreturn,%d0 + trap #0 + diff --git a/arch/m68k/kernel/init_task.c b/arch/m68k/kernel/init_task.c new file mode 100644 index 000000000000..cbf9dc3cc51d --- /dev/null +++ b/arch/m68k/kernel/init_task.c @@ -0,0 +1,36 @@ +/* + * linux/arch/m68knommu/kernel/init_task.c + */ +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/init_task.h> +#include <linux/fs.h> +#include <linux/mqueue.h> + +#include <asm/uaccess.h> +#include <asm/pgtable.h> + +static struct signal_struct init_signals = INIT_SIGNALS(init_signals); +static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); +/* + * Initial task structure. + * + * All other task structs will be allocated on slabs in fork.c + */ +__asm__(".align 4"); +struct task_struct init_task = INIT_TASK(init_task); + +EXPORT_SYMBOL(init_task); + +/* + * Initial thread structure. + * + * We need to make sure that this is 8192-byte aligned due to the + * way process stacks are handled. This is done by having a special + * "init_task" linker map entry.. + */ +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; + diff --git a/arch/m68k/kernel/irq.c b/arch/m68k/kernel/irq.c new file mode 100644 index 000000000000..c7dd48f37bee --- /dev/null +++ b/arch/m68k/kernel/irq.c @@ -0,0 +1,58 @@ +/* + * irq.c + * + * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/kernel_stat.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/seq_file.h> +#include <asm/system.h> +#include <asm/traps.h> + +asmlinkage void do_IRQ(int irq, struct pt_regs *regs) +{ + struct pt_regs *oldregs = set_irq_regs(regs); + + irq_enter(); + generic_handle_irq(irq); + irq_exit(); + + set_irq_regs(oldregs); +} + +int show_interrupts(struct seq_file *p, void *v) +{ + struct irqaction *ap; + int irq = *((loff_t *) v); + + if (irq == 0) + seq_puts(p, " CPU0\n"); + + if (irq < NR_IRQS) { + struct irq_desc *desc = irq_to_desc(irq); + + ap = desc->action; + if (ap) { + seq_printf(p, "%3d: ", irq); + seq_printf(p, "%10u ", kstat_irqs(irq)); + seq_printf(p, "%14s ", get_irq_desc_chip(desc)->name); + + seq_printf(p, "%s", ap->name); + for (ap = ap->next; ap; ap = ap->next) + seq_printf(p, ", %s", ap->name); + seq_putc(p, '\n'); + } + } + + return 0; +} + diff --git a/arch/m68k/kernel/m68k_ksyms.c b/arch/m68k/kernel/m68k_ksyms.c index d900e77e5363..4752c28ce0ac 100644 --- a/arch/m68k/kernel/m68k_ksyms.c +++ b/arch/m68k/kernel/m68k_ksyms.c @@ -1,16 +1,5 @@ -#include <linux/module.h> - -asmlinkage long long __ashldi3 (long long, int); -asmlinkage long long __ashrdi3 (long long, int); -asmlinkage long long __lshrdi3 (long long, int); -asmlinkage long long __muldi3 (long long, long long); - -/* The following are special because they're not called - explicitly (the C compiler generates them). Fortunately, - their interface isn't gonna change any time soon now, so - it's OK to leave it out of version control. */ -EXPORT_SYMBOL(__ashldi3); -EXPORT_SYMBOL(__ashrdi3); -EXPORT_SYMBOL(__lshrdi3); -EXPORT_SYMBOL(__muldi3); - +#ifdef CONFIG_MMU +#include "m68k_ksyms_mm.c" +#else +#include "m68k_ksyms_no.c" +#endif diff --git a/arch/m68k/kernel/m68k_ksyms_mm.c b/arch/m68k/kernel/m68k_ksyms_mm.c new file mode 100644 index 000000000000..d900e77e5363 --- /dev/null +++ b/arch/m68k/kernel/m68k_ksyms_mm.c @@ -0,0 +1,16 @@ +#include <linux/module.h> + +asmlinkage long long __ashldi3 (long long, int); +asmlinkage long long __ashrdi3 (long long, int); +asmlinkage long long __lshrdi3 (long long, int); +asmlinkage long long __muldi3 (long long, long long); + +/* The following are special because they're not called + explicitly (the C compiler generates them). Fortunately, + their interface isn't gonna change any time soon now, so + it's OK to leave it out of version control. */ +EXPORT_SYMBOL(__ashldi3); +EXPORT_SYMBOL(__ashrdi3); +EXPORT_SYMBOL(__lshrdi3); +EXPORT_SYMBOL(__muldi3); + diff --git a/arch/m68k/kernel/m68k_ksyms_no.c b/arch/m68k/kernel/m68k_ksyms_no.c new file mode 100644 index 000000000000..39fe0a7aec32 --- /dev/null +++ b/arch/m68k/kernel/m68k_ksyms_no.c @@ -0,0 +1,78 @@ +#include <linux/module.h> +#include <linux/linkage.h> +#include <linux/sched.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/user.h> +#include <linux/elfcore.h> +#include <linux/in6.h> +#include <linux/interrupt.h> + +#include <asm/setup.h> +#include <asm/machdep.h> +#include <asm/pgalloc.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/checksum.h> +#include <asm/current.h> + +extern int dump_fpu(struct pt_regs *, elf_fpregset_t *); + +/* platform dependent support */ + +EXPORT_SYMBOL(__ioremap); +EXPORT_SYMBOL(iounmap); +EXPORT_SYMBOL(dump_fpu); + +EXPORT_SYMBOL(ip_fast_csum); + +EXPORT_SYMBOL(kernel_thread); + +/* Networking helper routines. */ +EXPORT_SYMBOL(csum_partial_copy_nocheck); + +/* The following are special because they're not called + explicitly (the C compiler generates them). Fortunately, + their interface isn't gonna change any time soon now, so + it's OK to leave it out of version control. */ +EXPORT_SYMBOL(memcpy); +EXPORT_SYMBOL(memset); + +/* + * libgcc functions - functions that are used internally by the + * compiler... (prototypes are not correct though, but that + * doesn't really matter since they're not versioned). + */ +extern void __ashldi3(void); +extern void __ashrdi3(void); +extern void __divsi3(void); +extern void __lshrdi3(void); +extern void __modsi3(void); +extern void __muldi3(void); +extern void __mulsi3(void); +extern void __udivsi3(void); +extern void __umodsi3(void); + + /* gcc lib functions */ +EXPORT_SYMBOL(__ashldi3); +EXPORT_SYMBOL(__ashrdi3); +EXPORT_SYMBOL(__divsi3); +EXPORT_SYMBOL(__lshrdi3); +EXPORT_SYMBOL(__modsi3); +EXPORT_SYMBOL(__muldi3); +EXPORT_SYMBOL(__mulsi3); +EXPORT_SYMBOL(__udivsi3); +EXPORT_SYMBOL(__umodsi3); + +#ifdef CONFIG_COLDFIRE +extern unsigned int *dma_device_address; +extern unsigned long dma_base_addr, _ramend; +EXPORT_SYMBOL(dma_base_addr); +EXPORT_SYMBOL(dma_device_address); +EXPORT_SYMBOL(_ramend); + +extern asmlinkage void trap(void); +extern void *_ramvec; +EXPORT_SYMBOL(trap); +EXPORT_SYMBOL(_ramvec); +#endif /* CONFIG_COLDFIRE */ diff --git a/arch/m68k/kernel/module.c b/arch/m68k/kernel/module.c index cd6bcb1c957e..7ea203ce6b1a 100644 --- a/arch/m68k/kernel/module.c +++ b/arch/m68k/kernel/module.c @@ -1,155 +1,5 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/moduleloader.h> -#include <linux/elf.h> -#include <linux/vmalloc.h> -#include <linux/fs.h> -#include <linux/string.h> -#include <linux/kernel.h> - -#if 0 -#define DEBUGP printk +#ifdef CONFIG_MMU +#include "module_mm.c" #else -#define DEBUGP(fmt...) +#include "module_no.c" #endif - -#ifdef CONFIG_MODULES - -void *module_alloc(unsigned long size) -{ - if (size == 0) - return NULL; - return vmalloc(size); -} - - -/* Free memory returned from module_alloc */ -void module_free(struct module *mod, void *module_region) -{ - vfree(module_region); -} - -/* We don't need anything special. */ -int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, - char *secstrings, - struct module *mod) -{ - return 0; -} - -int apply_relocate(Elf32_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - unsigned int i; - Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; - uint32_t *location; - - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ - location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr - + rel[i].r_offset; - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr - + ELF32_R_SYM(rel[i].r_info); - - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_68K_32: - /* We add the value into the location given */ - *location += sym->st_value; - break; - case R_68K_PC32: - /* Add the value, subtract its postition */ - *location += sym->st_value - (uint32_t)location; - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", - me->name, ELF32_R_TYPE(rel[i].r_info)); - return -ENOEXEC; - } - } - return 0; -} - -int apply_relocate_add(Elf32_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - unsigned int i; - Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; - uint32_t *location; - - DEBUGP("Applying relocate_add section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ - location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr - + rel[i].r_offset; - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr - + ELF32_R_SYM(rel[i].r_info); - - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_68K_32: - /* We add the value into the location given */ - *location = rel[i].r_addend + sym->st_value; - break; - case R_68K_PC32: - /* Add the value, subtract its postition */ - *location = rel[i].r_addend + sym->st_value - (uint32_t)location; - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", - me->name, ELF32_R_TYPE(rel[i].r_info)); - return -ENOEXEC; - } - } - return 0; -} - -int module_finalize(const Elf_Ehdr *hdr, - const Elf_Shdr *sechdrs, - struct module *mod) -{ - module_fixup(mod, mod->arch.fixup_start, mod->arch.fixup_end); - - return 0; -} - -void module_arch_cleanup(struct module *mod) -{ -} - -#endif /* CONFIG_MODULES */ - -void module_fixup(struct module *mod, struct m68k_fixup_info *start, - struct m68k_fixup_info *end) -{ - struct m68k_fixup_info *fixup; - - for (fixup = start; fixup < end; fixup++) { - switch (fixup->type) { - case m68k_fixup_memoffset: - *(u32 *)fixup->addr = m68k_memoffset; - break; - case m68k_fixup_vnode_shift: - *(u16 *)fixup->addr += m68k_virt_to_node_shift; - break; - } - } -} diff --git a/arch/m68k/kernel/module_mm.c b/arch/m68k/kernel/module_mm.c new file mode 100644 index 000000000000..cd6bcb1c957e --- /dev/null +++ b/arch/m68k/kernel/module_mm.c @@ -0,0 +1,155 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/moduleloader.h> +#include <linux/elf.h> +#include <linux/vmalloc.h> +#include <linux/fs.h> +#include <linux/string.h> +#include <linux/kernel.h> + +#if 0 +#define DEBUGP printk +#else +#define DEBUGP(fmt...) +#endif + +#ifdef CONFIG_MODULES + +void *module_alloc(unsigned long size) +{ + if (size == 0) + return NULL; + return vmalloc(size); +} + + +/* Free memory returned from module_alloc */ +void module_free(struct module *mod, void *module_region) +{ + vfree(module_region); +} + +/* We don't need anything special. */ +int module_frob_arch_sections(Elf_Ehdr *hdr, + Elf_Shdr *sechdrs, + char *secstrings, + struct module *mod) +{ + return 0; +} + +int apply_relocate(Elf32_Shdr *sechdrs, + const char *strtab, + unsigned int symindex, + unsigned int relsec, + struct module *me) +{ + unsigned int i; + Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; + Elf32_Sym *sym; + uint32_t *location; + + DEBUGP("Applying relocate section %u to %u\n", relsec, + sechdrs[relsec].sh_info); + for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { + /* This is where to make the change */ + location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + + rel[i].r_offset; + /* This is the symbol it is referring to. Note that all + undefined symbols have been resolved. */ + sym = (Elf32_Sym *)sechdrs[symindex].sh_addr + + ELF32_R_SYM(rel[i].r_info); + + switch (ELF32_R_TYPE(rel[i].r_info)) { + case R_68K_32: + /* We add the value into the location given */ + *location += sym->st_value; + break; + case R_68K_PC32: + /* Add the value, subtract its postition */ + *location += sym->st_value - (uint32_t)location; + break; + default: + printk(KERN_ERR "module %s: Unknown relocation: %u\n", + me->name, ELF32_R_TYPE(rel[i].r_info)); + return -ENOEXEC; + } + } + return 0; +} + +int apply_relocate_add(Elf32_Shdr *sechdrs, + const char *strtab, + unsigned int symindex, + unsigned int relsec, + struct module *me) +{ + unsigned int i; + Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; + Elf32_Sym *sym; + uint32_t *location; + + DEBUGP("Applying relocate_add section %u to %u\n", relsec, + sechdrs[relsec].sh_info); + for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { + /* This is where to make the change */ + location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + + rel[i].r_offset; + /* This is the symbol it is referring to. Note that all + undefined symbols have been resolved. */ + sym = (Elf32_Sym *)sechdrs[symindex].sh_addr + + ELF32_R_SYM(rel[i].r_info); + + switch (ELF32_R_TYPE(rel[i].r_info)) { + case R_68K_32: + /* We add the value into the location given */ + *location = rel[i].r_addend + sym->st_value; + break; + case R_68K_PC32: + /* Add the value, subtract its postition */ + *location = rel[i].r_addend + sym->st_value - (uint32_t)location; + break; + default: + printk(KERN_ERR "module %s: Unknown relocation: %u\n", + me->name, ELF32_R_TYPE(rel[i].r_info)); + return -ENOEXEC; + } + } + return 0; +} + +int module_finalize(const Elf_Ehdr *hdr, + const Elf_Shdr *sechdrs, + struct module *mod) +{ + module_fixup(mod, mod->arch.fixup_start, mod->arch.fixup_end); + + return 0; +} + +void module_arch_cleanup(struct module *mod) +{ +} + +#endif /* CONFIG_MODULES */ + +void module_fixup(struct module *mod, struct m68k_fixup_info *start, + struct m68k_fixup_info *end) +{ + struct m68k_fixup_info *fixup; + + for (fixup = start; fixup < end; fixup++) { + switch (fixup->type) { + case m68k_fixup_memoffset: + *(u32 *)fixup->addr = m68k_memoffset; + break; + case m68k_fixup_vnode_shift: + *(u16 *)fixup->addr += m68k_virt_to_node_shift; + break; + } + } +} diff --git a/arch/m68k/kernel/module_no.c b/arch/m68k/kernel/module_no.c new file mode 100644 index 000000000000..d11ffae7956a --- /dev/null +++ b/arch/m68k/kernel/module_no.c @@ -0,0 +1,126 @@ +#include <linux/moduleloader.h> +#include <linux/elf.h> +#include <linux/vmalloc.h> +#include <linux/fs.h> +#include <linux/string.h> +#include <linux/kernel.h> + +#if 0 +#define DEBUGP printk +#else +#define DEBUGP(fmt...) +#endif + +void *module_alloc(unsigned long size) +{ + if (size == 0) + return NULL; + return vmalloc(size); +} + + +/* Free memory returned from module_alloc */ +void module_free(struct module *mod, void *module_region) +{ + vfree(module_region); +} + +/* We don't need anything special. */ +int module_frob_arch_sections(Elf_Ehdr *hdr, + Elf_Shdr *sechdrs, + char *secstrings, + struct module *mod) +{ + return 0; +} + +int apply_relocate(Elf32_Shdr *sechdrs, + const char *strtab, + unsigned int symindex, + unsigned int relsec, + struct module *me) +{ + unsigned int i; + Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; + Elf32_Sym *sym; + uint32_t *location; + + DEBUGP("Applying relocate section %u to %u\n", relsec, + sechdrs[relsec].sh_info); + for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { + /* This is where to make the change */ + location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + + rel[i].r_offset; + /* This is the symbol it is referring to. Note that all + undefined symbols have been resolved. */ + sym = (Elf32_Sym *)sechdrs[symindex].sh_addr + + ELF32_R_SYM(rel[i].r_info); + + switch (ELF32_R_TYPE(rel[i].r_info)) { + case R_68K_32: + /* We add the value into the location given */ + *location += sym->st_value; + break; + case R_68K_PC32: + /* Add the value, subtract its postition */ + *location += sym->st_value - (uint32_t)location; + break; + default: + printk(KERN_ERR "module %s: Unknown relocation: %u\n", + me->name, ELF32_R_TYPE(rel[i].r_info)); + return -ENOEXEC; + } + } + return 0; +} + +int apply_relocate_add(Elf32_Shdr *sechdrs, + const char *strtab, + unsigned int symindex, + unsigned int relsec, + struct module *me) +{ + unsigned int i; + Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; + Elf32_Sym *sym; + uint32_t *location; + + DEBUGP("Applying relocate_add section %u to %u\n", relsec, + sechdrs[relsec].sh_info); + for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { + /* This is where to make the change */ + location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + + rel[i].r_offset; + /* This is the symbol it is referring to. Note that all + undefined symbols have been resolved. */ + sym = (Elf32_Sym *)sechdrs[symindex].sh_addr + + ELF32_R_SYM(rel[i].r_info); + + switch (ELF32_R_TYPE(rel[i].r_info)) { + case R_68K_32: + /* We add the value into the location given */ + *location = rel[i].r_addend + sym->st_value; + break; + case R_68K_PC32: + /* Add the value, subtract its postition */ + *location = rel[i].r_addend + sym->st_value - (uint32_t)location; + break; + default: + printk(KERN_ERR "module %s: Unknown relocation: %u\n", + me->name, ELF32_R_TYPE(rel[i].r_info)); + return -ENOEXEC; + } + } + return 0; +} + +int module_finalize(const Elf_Ehdr *hdr, + const Elf_Shdr *sechdrs, + struct module *me) +{ + return 0; +} + +void module_arch_cleanup(struct module *mod) +{ +} diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c index c2a1fc23dd75..6cf4bd6e34f8 100644 --- a/arch/m68k/kernel/process.c +++ b/arch/m68k/kernel/process.c @@ -1,354 +1,5 @@ -/* - * linux/arch/m68k/kernel/process.c - * - * Copyright (C) 1995 Hamish Macdonald - * - * 68060 fixes by Jesper Skov - */ - -/* - * This file handles the architecture-dependent parts of process handling.. - */ - -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/slab.h> -#include <linux/fs.h> -#include <linux/smp.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/reboot.h> -#include <linux/init_task.h> -#include <linux/mqueue.h> - -#include <asm/uaccess.h> -#include <asm/system.h> -#include <asm/traps.h> -#include <asm/machdep.h> -#include <asm/setup.h> -#include <asm/pgtable.h> - -/* - * Initial task/thread structure. Make this a per-architecture thing, - * because different architectures tend to have different - * alignment requirements and potentially different initial - * setup. - */ -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -union thread_union init_thread_union __init_task_data - __attribute__((aligned(THREAD_SIZE))) = - { INIT_THREAD_INFO(init_task) }; - -/* initial task structure */ -struct task_struct init_task = INIT_TASK(init_task); - -EXPORT_SYMBOL(init_task); - -asmlinkage void ret_from_fork(void); - - -/* - * Return saved PC from a blocked thread - */ -unsigned long thread_saved_pc(struct task_struct *tsk) -{ - struct switch_stack *sw = (struct switch_stack *)tsk->thread.ksp; - /* Check whether the thread is blocked in resume() */ - if (in_sched_functions(sw->retpc)) - return ((unsigned long *)sw->a6)[1]; - else - return sw->retpc; -} - -/* - * The idle loop on an m68k.. - */ -static void default_idle(void) -{ - if (!need_resched()) -#if defined(MACH_ATARI_ONLY) - /* block out HSYNC on the atari (falcon) */ - __asm__("stop #0x2200" : : : "cc"); +#ifdef CONFIG_MMU +#include "process_mm.c" #else - __asm__("stop #0x2000" : : : "cc"); +#include "process_no.c" #endif -} - -void (*idle)(void) = default_idle; - -/* - * The idle thread. There's no useful work to be - * done, so just try to conserve power and have a - * low exit latency (ie sit in a loop waiting for - * somebody to say that they'd like to reschedule) - */ -void cpu_idle(void) -{ - /* endless idle loop with no priority at all */ - while (1) { - while (!need_resched()) - idle(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } -} - -void machine_restart(char * __unused) -{ - if (mach_reset) - mach_reset(); - for (;;); -} - -void machine_halt(void) -{ - if (mach_halt) - mach_halt(); - for (;;); -} - -void machine_power_off(void) -{ - if (mach_power_off) - mach_power_off(); - for (;;); -} - -void (*pm_power_off)(void) = machine_power_off; -EXPORT_SYMBOL(pm_power_off); - -void show_regs(struct pt_regs * regs) -{ - printk("\n"); - printk("Format %02x Vector: %04x PC: %08lx Status: %04x %s\n", - regs->format, regs->vector, regs->pc, regs->sr, print_tainted()); - printk("ORIG_D0: %08lx D0: %08lx A2: %08lx A1: %08lx\n", - regs->orig_d0, regs->d0, regs->a2, regs->a1); - printk("A0: %08lx D5: %08lx D4: %08lx\n", - regs->a0, regs->d5, regs->d4); - printk("D3: %08lx D2: %08lx D1: %08lx\n", - regs->d3, regs->d2, regs->d1); - if (!(regs->sr & PS_S)) - printk("USP: %08lx\n", rdusp()); -} - -/* - * Create a kernel thread - */ -int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) -{ - int pid; - mm_segment_t fs; - - fs = get_fs(); - set_fs (KERNEL_DS); - - { - register long retval __asm__ ("d0"); - register long clone_arg __asm__ ("d1") = flags | CLONE_VM | CLONE_UNTRACED; - - retval = __NR_clone; - __asm__ __volatile__ - ("clrl %%d2\n\t" - "trap #0\n\t" /* Linux/m68k system call */ - "tstl %0\n\t" /* child or parent */ - "jne 1f\n\t" /* parent - jump */ - "lea %%sp@(%c7),%6\n\t" /* reload current */ - "movel %6@,%6\n\t" - "movel %3,%%sp@-\n\t" /* push argument */ - "jsr %4@\n\t" /* call fn */ - "movel %0,%%d1\n\t" /* pass exit value */ - "movel %2,%%d0\n\t" /* exit */ - "trap #0\n" - "1:" - : "+d" (retval) - : "i" (__NR_clone), "i" (__NR_exit), - "r" (arg), "a" (fn), "d" (clone_arg), "r" (current), - "i" (-THREAD_SIZE) - : "d2"); - - pid = retval; - } - - set_fs (fs); - return pid; -} -EXPORT_SYMBOL(kernel_thread); - -void flush_thread(void) -{ - unsigned long zero = 0; - set_fs(USER_DS); - current->thread.fs = __USER_DS; - if (!FPU_IS_EMU) - asm volatile (".chip 68k/68881\n\t" - "frestore %0@\n\t" - ".chip 68k" : : "a" (&zero)); -} - -/* - * "m68k_fork()".. By the time we get here, the - * non-volatile registers have also been saved on the - * stack. We do some ugly pointer stuff here.. (see - * also copy_thread) - */ - -asmlinkage int m68k_fork(struct pt_regs *regs) -{ - return do_fork(SIGCHLD, rdusp(), regs, 0, NULL, NULL); -} - -asmlinkage int m68k_vfork(struct pt_regs *regs) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, - NULL, NULL); -} - -asmlinkage int m68k_clone(struct pt_regs *regs) -{ - unsigned long clone_flags; - unsigned long newsp; - int __user *parent_tidptr, *child_tidptr; - - /* syscall2 puts clone_flags in d1 and usp in d2 */ - clone_flags = regs->d1; - newsp = regs->d2; - parent_tidptr = (int __user *)regs->d3; - child_tidptr = (int __user *)regs->d4; - if (!newsp) - newsp = rdusp(); - return do_fork(clone_flags, newsp, regs, 0, - parent_tidptr, child_tidptr); -} - -int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long unused, - struct task_struct * p, struct pt_regs * regs) -{ - struct pt_regs * childregs; - struct switch_stack * childstack, *stack; - unsigned long *retp; - - childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1; - - *childregs = *regs; - childregs->d0 = 0; - - retp = ((unsigned long *) regs); - stack = ((struct switch_stack *) retp) - 1; - - childstack = ((struct switch_stack *) childregs) - 1; - *childstack = *stack; - childstack->retpc = (unsigned long)ret_from_fork; - - p->thread.usp = usp; - p->thread.ksp = (unsigned long)childstack; - - if (clone_flags & CLONE_SETTLS) - task_thread_info(p)->tp_value = regs->d5; - - /* - * Must save the current SFC/DFC value, NOT the value when - * the parent was last descheduled - RGH 10-08-96 - */ - p->thread.fs = get_fs().seg; - - if (!FPU_IS_EMU) { - /* Copy the current fpu state */ - asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory"); - - if (!CPU_IS_060 ? p->thread.fpstate[0] : p->thread.fpstate[2]) - asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t" - "fmoveml %/fpiar/%/fpcr/%/fpsr,%1" - : : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0]) - : "memory"); - /* Restore the state in case the fpu was busy */ - asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0])); - } - - return 0; -} - -/* Fill in the fpu structure for a core dump. */ - -int dump_fpu (struct pt_regs *regs, struct user_m68kfp_struct *fpu) -{ - char fpustate[216]; - - if (FPU_IS_EMU) { - int i; - - memcpy(fpu->fpcntl, current->thread.fpcntl, 12); - memcpy(fpu->fpregs, current->thread.fp, 96); - /* Convert internal fpu reg representation - * into long double format - */ - for (i = 0; i < 24; i += 3) - fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) | - ((fpu->fpregs[i] & 0x0000ffff) << 16); - return 1; - } - - /* First dump the fpu context to avoid protocol violation. */ - asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory"); - if (!CPU_IS_060 ? !fpustate[0] : !fpustate[2]) - return 0; - - asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0" - :: "m" (fpu->fpcntl[0]) - : "memory"); - asm volatile ("fmovemx %/fp0-%/fp7,%0" - :: "m" (fpu->fpregs[0]) - : "memory"); - return 1; -} -EXPORT_SYMBOL(dump_fpu); - -/* - * sys_execve() executes a new program. - */ -asmlinkage int sys_execve(const char __user *name, - const char __user *const __user *argv, - const char __user *const __user *envp) -{ - int error; - char * filename; - struct pt_regs *regs = (struct pt_regs *) &name; - - filename = getname(name); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - return error; - error = do_execve(filename, argv, envp, regs); - putname(filename); - return error; -} - -unsigned long get_wchan(struct task_struct *p) -{ - unsigned long fp, pc; - unsigned long stack_page; - int count = 0; - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - - stack_page = (unsigned long)task_stack_page(p); - fp = ((struct switch_stack *)p->thread.ksp)->a6; - do { - if (fp < stack_page+sizeof(struct thread_info) || - fp >= 8184+stack_page) - return 0; - pc = ((unsigned long *)fp)[1]; - if (!in_sched_functions(pc)) - return pc; - fp = *(unsigned long *) fp; - } while (count++ < 16); - return 0; -} diff --git a/arch/m68k/kernel/process_mm.c b/arch/m68k/kernel/process_mm.c new file mode 100644 index 000000000000..c2a1fc23dd75 --- /dev/null +++ b/arch/m68k/kernel/process_mm.c @@ -0,0 +1,354 @@ +/* + * linux/arch/m68k/kernel/process.c + * + * Copyright (C) 1995 Hamish Macdonald + * + * 68060 fixes by Jesper Skov + */ + +/* + * This file handles the architecture-dependent parts of process handling.. + */ + +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/fs.h> +#include <linux/smp.h> +#include <linux/stddef.h> +#include <linux/unistd.h> +#include <linux/ptrace.h> +#include <linux/user.h> +#include <linux/reboot.h> +#include <linux/init_task.h> +#include <linux/mqueue.h> + +#include <asm/uaccess.h> +#include <asm/system.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include <asm/setup.h> +#include <asm/pgtable.h> + +/* + * Initial task/thread structure. Make this a per-architecture thing, + * because different architectures tend to have different + * alignment requirements and potentially different initial + * setup. + */ +static struct signal_struct init_signals = INIT_SIGNALS(init_signals); +static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); +union thread_union init_thread_union __init_task_data + __attribute__((aligned(THREAD_SIZE))) = + { INIT_THREAD_INFO(init_task) }; + +/* initial task structure */ +struct task_struct init_task = INIT_TASK(init_task); + +EXPORT_SYMBOL(init_task); + +asmlinkage void ret_from_fork(void); + + +/* + * Return saved PC from a blocked thread + */ +unsigned long thread_saved_pc(struct task_struct *tsk) +{ + struct switch_stack *sw = (struct switch_stack *)tsk->thread.ksp; + /* Check whether the thread is blocked in resume() */ + if (in_sched_functions(sw->retpc)) + return ((unsigned long *)sw->a6)[1]; + else + return sw->retpc; +} + +/* + * The idle loop on an m68k.. + */ +static void default_idle(void) +{ + if (!need_resched()) +#if defined(MACH_ATARI_ONLY) + /* block out HSYNC on the atari (falcon) */ + __asm__("stop #0x2200" : : : "cc"); +#else + __asm__("stop #0x2000" : : : "cc"); +#endif +} + +void (*idle)(void) = default_idle; + +/* + * The idle thread. There's no useful work to be + * done, so just try to conserve power and have a + * low exit latency (ie sit in a loop waiting for + * somebody to say that they'd like to reschedule) + */ +void cpu_idle(void) +{ + /* endless idle loop with no priority at all */ + while (1) { + while (!need_resched()) + idle(); + preempt_enable_no_resched(); + schedule(); + preempt_disable(); + } +} + +void machine_restart(char * __unused) +{ + if (mach_reset) + mach_reset(); + for (;;); +} + +void machine_halt(void) +{ + if (mach_halt) + mach_halt(); + for (;;); +} + +void machine_power_off(void) +{ + if (mach_power_off) + mach_power_off(); + for (;;); +} + +void (*pm_power_off)(void) = machine_power_off; +EXPORT_SYMBOL(pm_power_off); + +void show_regs(struct pt_regs * regs) +{ + printk("\n"); + printk("Format %02x Vector: %04x PC: %08lx Status: %04x %s\n", + regs->format, regs->vector, regs->pc, regs->sr, print_tainted()); + printk("ORIG_D0: %08lx D0: %08lx A2: %08lx A1: %08lx\n", + regs->orig_d0, regs->d0, regs->a2, regs->a1); + printk("A0: %08lx D5: %08lx D4: %08lx\n", + regs->a0, regs->d5, regs->d4); + printk("D3: %08lx D2: %08lx D1: %08lx\n", + regs->d3, regs->d2, regs->d1); + if (!(regs->sr & PS_S)) + printk("USP: %08lx\n", rdusp()); +} + +/* + * Create a kernel thread + */ +int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) +{ + int pid; + mm_segment_t fs; + + fs = get_fs(); + set_fs (KERNEL_DS); + + { + register long retval __asm__ ("d0"); + register long clone_arg __asm__ ("d1") = flags | CLONE_VM | CLONE_UNTRACED; + + retval = __NR_clone; + __asm__ __volatile__ + ("clrl %%d2\n\t" + "trap #0\n\t" /* Linux/m68k system call */ + "tstl %0\n\t" /* child or parent */ + "jne 1f\n\t" /* parent - jump */ + "lea %%sp@(%c7),%6\n\t" /* reload current */ + "movel %6@,%6\n\t" + "movel %3,%%sp@-\n\t" /* push argument */ + "jsr %4@\n\t" /* call fn */ + "movel %0,%%d1\n\t" /* pass exit value */ + "movel %2,%%d0\n\t" /* exit */ + "trap #0\n" + "1:" + : "+d" (retval) + : "i" (__NR_clone), "i" (__NR_exit), + "r" (arg), "a" (fn), "d" (clone_arg), "r" (current), + "i" (-THREAD_SIZE) + : "d2"); + + pid = retval; + } + + set_fs (fs); + return pid; +} +EXPORT_SYMBOL(kernel_thread); + +void flush_thread(void) +{ + unsigned long zero = 0; + set_fs(USER_DS); + current->thread.fs = __USER_DS; + if (!FPU_IS_EMU) + asm volatile (".chip 68k/68881\n\t" + "frestore %0@\n\t" + ".chip 68k" : : "a" (&zero)); +} + +/* + * "m68k_fork()".. By the time we get here, the + * non-volatile registers have also been saved on the + * stack. We do some ugly pointer stuff here.. (see + * also copy_thread) + */ + +asmlinkage int m68k_fork(struct pt_regs *regs) +{ + return do_fork(SIGCHLD, rdusp(), regs, 0, NULL, NULL); +} + +asmlinkage int m68k_vfork(struct pt_regs *regs) +{ + return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, + NULL, NULL); +} + +asmlinkage int m68k_clone(struct pt_regs *regs) +{ + unsigned long clone_flags; + unsigned long newsp; + int __user *parent_tidptr, *child_tidptr; + + /* syscall2 puts clone_flags in d1 and usp in d2 */ + clone_flags = regs->d1; + newsp = regs->d2; + parent_tidptr = (int __user *)regs->d3; + child_tidptr = (int __user *)regs->d4; + if (!newsp) + newsp = rdusp(); + return do_fork(clone_flags, newsp, regs, 0, + parent_tidptr, child_tidptr); +} + +int copy_thread(unsigned long clone_flags, unsigned long usp, + unsigned long unused, + struct task_struct * p, struct pt_regs * regs) +{ + struct pt_regs * childregs; + struct switch_stack * childstack, *stack; + unsigned long *retp; + + childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1; + + *childregs = *regs; + childregs->d0 = 0; + + retp = ((unsigned long *) regs); + stack = ((struct switch_stack *) retp) - 1; + + childstack = ((struct switch_stack *) childregs) - 1; + *childstack = *stack; + childstack->retpc = (unsigned long)ret_from_fork; + + p->thread.usp = usp; + p->thread.ksp = (unsigned long)childstack; + + if (clone_flags & CLONE_SETTLS) + task_thread_info(p)->tp_value = regs->d5; + + /* + * Must save the current SFC/DFC value, NOT the value when + * the parent was last descheduled - RGH 10-08-96 + */ + p->thread.fs = get_fs().seg; + + if (!FPU_IS_EMU) { + /* Copy the current fpu state */ + asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory"); + + if (!CPU_IS_060 ? p->thread.fpstate[0] : p->thread.fpstate[2]) + asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t" + "fmoveml %/fpiar/%/fpcr/%/fpsr,%1" + : : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0]) + : "memory"); + /* Restore the state in case the fpu was busy */ + asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0])); + } + + return 0; +} + +/* Fill in the fpu structure for a core dump. */ + +int dump_fpu (struct pt_regs *regs, struct user_m68kfp_struct *fpu) +{ + char fpustate[216]; + + if (FPU_IS_EMU) { + int i; + + memcpy(fpu->fpcntl, current->thread.fpcntl, 12); + memcpy(fpu->fpregs, current->thread.fp, 96); + /* Convert internal fpu reg representation + * into long double format + */ + for (i = 0; i < 24; i += 3) + fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) | + ((fpu->fpregs[i] & 0x0000ffff) << 16); + return 1; + } + + /* First dump the fpu context to avoid protocol violation. */ + asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory"); + if (!CPU_IS_060 ? !fpustate[0] : !fpustate[2]) + return 0; + + asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0" + :: "m" (fpu->fpcntl[0]) + : "memory"); + asm volatile ("fmovemx %/fp0-%/fp7,%0" + :: "m" (fpu->fpregs[0]) + : "memory"); + return 1; +} +EXPORT_SYMBOL(dump_fpu); + +/* + * sys_execve() executes a new program. + */ +asmlinkage int sys_execve(const char __user *name, + const char __user *const __user *argv, + const char __user *const __user *envp) +{ + int error; + char * filename; + struct pt_regs *regs = (struct pt_regs *) &name; + + filename = getname(name); + error = PTR_ERR(filename); + if (IS_ERR(filename)) + return error; + error = do_execve(filename, argv, envp, regs); + putname(filename); + return error; +} + +unsigned long get_wchan(struct task_struct *p) +{ + unsigned long fp, pc; + unsigned long stack_page; + int count = 0; + if (!p || p == current || p->state == TASK_RUNNING) + return 0; + + stack_page = (unsigned long)task_stack_page(p); + fp = ((struct switch_stack *)p->thread.ksp)->a6; + do { + if (fp < stack_page+sizeof(struct thread_info) || + fp >= 8184+stack_page) + return 0; + pc = ((unsigned long *)fp)[1]; + if (!in_sched_functions(pc)) + return pc; + fp = *(unsigned long *) fp; + } while (count++ < 16); + return 0; +} diff --git a/arch/m68k/kernel/process_no.c b/arch/m68k/kernel/process_no.c new file mode 100644 index 000000000000..e2a63af5d517 --- /dev/null +++ b/arch/m68k/kernel/process_no.c @@ -0,0 +1,404 @@ +/* + * linux/arch/m68knommu/kernel/process.c + * + * Copyright (C) 1995 Hamish Macdonald + * + * 68060 fixes by Jesper Skov + * + * uClinux changes + * Copyright (C) 2000-2002, David McCullough <davidm@snapgear.com> + */ + +/* + * This file handles the architecture-dependent parts of process handling.. + */ + +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/smp.h> +#include <linux/stddef.h> +#include <linux/unistd.h> +#include <linux/ptrace.h> +#include <linux/user.h> +#include <linux/interrupt.h> +#include <linux/reboot.h> +#include <linux/fs.h> +#include <linux/slab.h> + +#include <asm/uaccess.h> +#include <asm/system.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include <asm/setup.h> +#include <asm/pgtable.h> + +asmlinkage void ret_from_fork(void); + +/* + * The following aren't currently used. + */ +void (*pm_idle)(void); +EXPORT_SYMBOL(pm_idle); + +void (*pm_power_off)(void); +EXPORT_SYMBOL(pm_power_off); + +/* + * The idle loop on an m68knommu.. + */ +static void default_idle(void) +{ + local_irq_disable(); + while (!need_resched()) { + /* This stop will re-enable interrupts */ + __asm__("stop #0x2000" : : : "cc"); + local_irq_disable(); + } + local_irq_enable(); +} + +void (*idle)(void) = default_idle; + +/* + * The idle thread. There's no useful work to be + * done, so just try to conserve power and have a + * low exit latency (ie sit in a loop waiting for + * somebody to say that they'd like to reschedule) + */ +void cpu_idle(void) +{ + /* endless idle loop with no priority at all */ + while (1) { + idle(); + preempt_enable_no_resched(); + schedule(); + preempt_disable(); + } +} + +void machine_restart(char * __unused) +{ + if (mach_reset) + mach_reset(); + for (;;); +} + +void machine_halt(void) +{ + if (mach_halt) + mach_halt(); + for (;;); +} + +void machine_power_off(void) +{ + if (mach_power_off) + mach_power_off(); + for (;;); +} + +void show_regs(struct pt_regs * regs) +{ + printk(KERN_NOTICE "\n"); + printk(KERN_NOTICE "Format %02x Vector: %04x PC: %08lx Status: %04x %s\n", + regs->format, regs->vector, regs->pc, regs->sr, print_tainted()); + printk(KERN_NOTICE "ORIG_D0: %08lx D0: %08lx A2: %08lx A1: %08lx\n", + regs->orig_d0, regs->d0, regs->a2, regs->a1); + printk(KERN_NOTICE "A0: %08lx D5: %08lx D4: %08lx\n", + regs->a0, regs->d5, regs->d4); + printk(KERN_NOTICE "D3: %08lx D2: %08lx D1: %08lx\n", + regs->d3, regs->d2, regs->d1); + if (!(regs->sr & PS_S)) + printk(KERN_NOTICE "USP: %08lx\n", rdusp()); +} + +/* + * Create a kernel thread + */ +int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) +{ + int retval; + long clone_arg = flags | CLONE_VM; + mm_segment_t fs; + + fs = get_fs(); + set_fs(KERNEL_DS); + + __asm__ __volatile__ ( + "movel %%sp, %%d2\n\t" + "movel %5, %%d1\n\t" + "movel %1, %%d0\n\t" + "trap #0\n\t" + "cmpl %%sp, %%d2\n\t" + "jeq 1f\n\t" + "movel %3, %%sp@-\n\t" + "jsr %4@\n\t" + "movel %2, %%d0\n\t" + "trap #0\n" + "1:\n\t" + "movel %%d0, %0\n" + : "=d" (retval) + : "i" (__NR_clone), + "i" (__NR_exit), + "a" (arg), + "a" (fn), + "a" (clone_arg) + : "cc", "%d0", "%d1", "%d2"); + + set_fs(fs); + return retval; +} + +void flush_thread(void) +{ +#ifdef CONFIG_FPU + unsigned long zero = 0; +#endif + set_fs(USER_DS); + current->thread.fs = __USER_DS; +#ifdef CONFIG_FPU + if (!FPU_IS_EMU) + asm volatile (".chip 68k/68881\n\t" + "frestore %0@\n\t" + ".chip 68k" : : "a" (&zero)); +#endif +} + +/* + * "m68k_fork()".. By the time we get here, the + * non-volatile registers have also been saved on the + * stack. We do some ugly pointer stuff here.. (see + * also copy_thread) + */ + +asmlinkage int m68k_fork(struct pt_regs *regs) +{ + /* fork almost works, enough to trick you into looking elsewhere :-( */ + return(-EINVAL); +} + +asmlinkage int m68k_vfork(struct pt_regs *regs) +{ + return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, NULL, NULL); +} + +asmlinkage int m68k_clone(struct pt_regs *regs) +{ + unsigned long clone_flags; + unsigned long newsp; + + /* syscall2 puts clone_flags in d1 and usp in d2 */ + clone_flags = regs->d1; + newsp = regs->d2; + if (!newsp) + newsp = rdusp(); + return do_fork(clone_flags, newsp, regs, 0, NULL, NULL); +} + +int copy_thread(unsigned long clone_flags, + unsigned long usp, unsigned long topstk, + struct task_struct * p, struct pt_regs * regs) +{ + struct pt_regs * childregs; + struct switch_stack * childstack, *stack; + unsigned long *retp; + + childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1; + + *childregs = *regs; + childregs->d0 = 0; + + retp = ((unsigned long *) regs); + stack = ((struct switch_stack *) retp) - 1; + + childstack = ((struct switch_stack *) childregs) - 1; + *childstack = *stack; + childstack->retpc = (unsigned long)ret_from_fork; + + p->thread.usp = usp; + p->thread.ksp = (unsigned long)childstack; + + if (clone_flags & CLONE_SETTLS) + task_thread_info(p)->tp_value = regs->d5; + + /* + * Must save the current SFC/DFC value, NOT the value when + * the parent was last descheduled - RGH 10-08-96 + */ + p->thread.fs = get_fs().seg; + +#ifdef CONFIG_FPU + if (!FPU_IS_EMU) { + /* Copy the current fpu state */ + asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory"); + + if (p->thread.fpstate[0]) + asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t" + "fmoveml %/fpiar/%/fpcr/%/fpsr,%1" + : : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0]) + : "memory"); + /* Restore the state in case the fpu was busy */ + asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0])); + } +#endif + + return 0; +} + +/* Fill in the fpu structure for a core dump. */ + +int dump_fpu(struct pt_regs *regs, struct user_m68kfp_struct *fpu) +{ +#ifdef CONFIG_FPU + char fpustate[216]; + + if (FPU_IS_EMU) { + int i; + + memcpy(fpu->fpcntl, current->thread.fpcntl, 12); + memcpy(fpu->fpregs, current->thread.fp, 96); + /* Convert internal fpu reg representation + * into long double format + */ + for (i = 0; i < 24; i += 3) + fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) | + ((fpu->fpregs[i] & 0x0000ffff) << 16); + return 1; + } + + /* First dump the fpu context to avoid protocol violation. */ + asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory"); + if (!fpustate[0]) + return 0; + + asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0" + :: "m" (fpu->fpcntl[0]) + : "memory"); + asm volatile ("fmovemx %/fp0-%/fp7,%0" + :: "m" (fpu->fpregs[0]) + : "memory"); +#endif + return 1; +} + +/* + * Generic dumping code. Used for panic and debug. + */ +void dump(struct pt_regs *fp) +{ + unsigned long *sp; + unsigned char *tp; + int i; + + printk(KERN_EMERG "\nCURRENT PROCESS:\n\n"); + printk(KERN_EMERG "COMM=%s PID=%d\n", current->comm, current->pid); + + if (current->mm) { + printk(KERN_EMERG "TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n", + (int) current->mm->start_code, + (int) current->mm->end_code, + (int) current->mm->start_data, + (int) current->mm->end_data, + (int) current->mm->end_data, + (int) current->mm->brk); + printk(KERN_EMERG "USER-STACK=%08x KERNEL-STACK=%08x\n\n", + (int) current->mm->start_stack, + (int)(((unsigned long) current) + THREAD_SIZE)); + } + + printk(KERN_EMERG "PC: %08lx\n", fp->pc); + printk(KERN_EMERG "SR: %08lx SP: %08lx\n", (long) fp->sr, (long) fp); + printk(KERN_EMERG "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", + fp->d0, fp->d1, fp->d2, fp->d3); + printk(KERN_EMERG "d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", + fp->d4, fp->d5, fp->a0, fp->a1); + printk(KERN_EMERG "\nUSP: %08x TRAPFRAME: %p\n", + (unsigned int) rdusp(), fp); + + printk(KERN_EMERG "\nCODE:"); + tp = ((unsigned char *) fp->pc) - 0x20; + for (sp = (unsigned long *) tp, i = 0; (i < 0x40); i += 4) { + if ((i % 0x10) == 0) + printk(KERN_EMERG "%p: ", tp + i); + printk("%08x ", (int) *sp++); + } + printk(KERN_EMERG "\n"); + + printk(KERN_EMERG "KERNEL STACK:"); + tp = ((unsigned char *) fp) - 0x40; + for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) { + if ((i % 0x10) == 0) + printk(KERN_EMERG "%p: ", tp + i); + printk("%08x ", (int) *sp++); + } + printk(KERN_EMERG "\n"); + + printk(KERN_EMERG "USER STACK:"); + tp = (unsigned char *) (rdusp() - 0x10); + for (sp = (unsigned long *) tp, i = 0; (i < 0x80); i += 4) { + if ((i % 0x10) == 0) + printk(KERN_EMERG "%p: ", tp + i); + printk("%08x ", (int) *sp++); + } + printk(KERN_EMERG "\n"); +} + +/* + * sys_execve() executes a new program. + */ +asmlinkage int sys_execve(const char *name, + const char *const *argv, + const char *const *envp) +{ + int error; + char * filename; + struct pt_regs *regs = (struct pt_regs *) &name; + + filename = getname(name); + error = PTR_ERR(filename); + if (IS_ERR(filename)) + return error; + error = do_execve(filename, argv, envp, regs); + putname(filename); + return error; +} + +unsigned long get_wchan(struct task_struct *p) +{ + unsigned long fp, pc; + unsigned long stack_page; + int count = 0; + if (!p || p == current || p->state == TASK_RUNNING) + return 0; + + stack_page = (unsigned long)p; + fp = ((struct switch_stack *)p->thread.ksp)->a6; + do { + if (fp < stack_page+sizeof(struct thread_info) || + fp >= THREAD_SIZE-8+stack_page) + return 0; + pc = ((unsigned long *)fp)[1]; + if (!in_sched_functions(pc)) + return pc; + fp = *(unsigned long *) fp; + } while (count++ < 16); + return 0; +} + +/* + * Return saved PC of a blocked thread. + */ +unsigned long thread_saved_pc(struct task_struct *tsk) +{ + struct switch_stack *sw = (struct switch_stack *)tsk->thread.ksp; + + /* Check whether the thread is blocked in resume() */ + if (in_sched_functions(sw->retpc)) + return ((unsigned long *)sw->a6)[1]; + else + return sw->retpc; +} + diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c index 0b252683cefb..07a417550e94 100644 --- a/arch/m68k/kernel/ptrace.c +++ b/arch/m68k/kernel/ptrace.c @@ -1,277 +1,5 @@ -/* - * linux/arch/m68k/kernel/ptrace.c - * - * Copyright (C) 1994 by Hamish Macdonald - * Taken from linux/kernel/ptrace.c and modified for M680x0. - * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of - * this archive for more details. - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/errno.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/signal.h> - -#include <asm/uaccess.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/system.h> -#include <asm/processor.h> - -/* - * does not yet catch signals sent when the child dies. - * in exit.c or in signal.c. - */ - -/* determines which bits in the SR the user has access to. */ -/* 1 = access 0 = no access */ -#define SR_MASK 0x001f - -/* sets the trace bits. */ -#define TRACE_BITS 0xC000 -#define T1_BIT 0x8000 -#define T0_BIT 0x4000 - -/* Find the stack offset for a register, relative to thread.esp0. */ -#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg) -#define SW_REG(reg) ((long)&((struct switch_stack *)0)->reg \ - - sizeof(struct switch_stack)) -/* Mapping from PT_xxx to the stack offset at which the register is - saved. Notice that usp has no stack-slot and needs to be treated - specially (see get_reg/put_reg below). */ -static const int regoff[] = { - [0] = PT_REG(d1), - [1] = PT_REG(d2), - [2] = PT_REG(d3), - [3] = PT_REG(d4), - [4] = PT_REG(d5), - [5] = SW_REG(d6), - [6] = SW_REG(d7), - [7] = PT_REG(a0), - [8] = PT_REG(a1), - [9] = PT_REG(a2), - [10] = SW_REG(a3), - [11] = SW_REG(a4), - [12] = SW_REG(a5), - [13] = SW_REG(a6), - [14] = PT_REG(d0), - [15] = -1, - [16] = PT_REG(orig_d0), - [17] = PT_REG(sr), - [18] = PT_REG(pc), -}; - -/* - * Get contents of register REGNO in task TASK. - */ -static inline long get_reg(struct task_struct *task, int regno) -{ - unsigned long *addr; - - if (regno == PT_USP) - addr = &task->thread.usp; - else if (regno < ARRAY_SIZE(regoff)) - addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); - else - return 0; - /* Need to take stkadj into account. */ - if (regno == PT_SR || regno == PT_PC) { - long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj)); - addr = (unsigned long *) ((unsigned long)addr + stkadj); - /* The sr is actually a 16 bit register. */ - if (regno == PT_SR) - return *(unsigned short *)addr; - } - return *addr; -} - -/* - * Write contents of register REGNO in task TASK. - */ -static inline int put_reg(struct task_struct *task, int regno, - unsigned long data) -{ - unsigned long *addr; - - if (regno == PT_USP) - addr = &task->thread.usp; - else if (regno < ARRAY_SIZE(regoff)) - addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); - else - return -1; - /* Need to take stkadj into account. */ - if (regno == PT_SR || regno == PT_PC) { - long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj)); - addr = (unsigned long *) ((unsigned long)addr + stkadj); - /* The sr is actually a 16 bit register. */ - if (regno == PT_SR) { - *(unsigned short *)addr = data; - return 0; - } - } - *addr = data; - return 0; -} - -/* - * Make sure the single step bit is not set. - */ -static inline void singlestep_disable(struct task_struct *child) -{ - unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; - put_reg(child, PT_SR, tmp); - clear_tsk_thread_flag(child, TIF_DELAYED_TRACE); -} - -/* - * Called by kernel/ptrace.c when detaching.. - */ -void ptrace_disable(struct task_struct *child) -{ - singlestep_disable(child); -} - -void user_enable_single_step(struct task_struct *child) -{ - unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; - put_reg(child, PT_SR, tmp | T1_BIT); - set_tsk_thread_flag(child, TIF_DELAYED_TRACE); -} - -void user_enable_block_step(struct task_struct *child) -{ - unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; - put_reg(child, PT_SR, tmp | T0_BIT); -} - -void user_disable_single_step(struct task_struct *child) -{ - singlestep_disable(child); -} - -long arch_ptrace(struct task_struct *child, long request, - unsigned long addr, unsigned long data) -{ - unsigned long tmp; - int i, ret = 0; - int regno = addr >> 2; /* temporary hack. */ - unsigned long __user *datap = (unsigned long __user *) data; - - switch (request) { - /* read the word at location addr in the USER area. */ - case PTRACE_PEEKUSR: - if (addr & 3) - goto out_eio; - - if (regno >= 0 && regno < 19) { - tmp = get_reg(child, regno); - } else if (regno >= 21 && regno < 49) { - tmp = child->thread.fp[regno - 21]; - /* Convert internal fpu reg representation - * into long double format - */ - if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) - tmp = ((tmp & 0xffff0000) << 15) | - ((tmp & 0x0000ffff) << 16); - } else - goto out_eio; - ret = put_user(tmp, datap); - break; - - case PTRACE_POKEUSR: - /* write the word at location addr in the USER area */ - if (addr & 3) - goto out_eio; - - if (regno == PT_SR) { - data &= SR_MASK; - data |= get_reg(child, PT_SR) & ~SR_MASK; - } - if (regno >= 0 && regno < 19) { - if (put_reg(child, regno, data)) - goto out_eio; - } else if (regno >= 21 && regno < 48) { - /* Convert long double format - * into internal fpu reg representation - */ - if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) { - data <<= 15; - data = (data & 0xffff0000) | - ((data & 0x0000ffff) >> 1); - } - child->thread.fp[regno - 21] = data; - } else - goto out_eio; - break; - - case PTRACE_GETREGS: /* Get all gp regs from the child. */ - for (i = 0; i < 19; i++) { - tmp = get_reg(child, i); - ret = put_user(tmp, datap); - if (ret) - break; - datap++; - } - break; - - case PTRACE_SETREGS: /* Set all gp regs in the child. */ - for (i = 0; i < 19; i++) { - ret = get_user(tmp, datap); - if (ret) - break; - if (i == PT_SR) { - tmp &= SR_MASK; - tmp |= get_reg(child, PT_SR) & ~SR_MASK; - } - put_reg(child, i, tmp); - datap++; - } - break; - - case PTRACE_GETFPREGS: /* Get the child FPU state. */ - if (copy_to_user(datap, &child->thread.fp, - sizeof(struct user_m68kfp_struct))) - ret = -EFAULT; - break; - - case PTRACE_SETFPREGS: /* Set the child FPU state. */ - if (copy_from_user(&child->thread.fp, datap, - sizeof(struct user_m68kfp_struct))) - ret = -EFAULT; - break; - - case PTRACE_GET_THREAD_AREA: - ret = put_user(task_thread_info(child)->tp_value, datap); - break; - - default: - ret = ptrace_request(child, request, addr, data); - break; - } - - return ret; -out_eio: - return -EIO; -} - -asmlinkage void syscall_trace(void) -{ - ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) - ? 0x80 : 0)); - /* - * this isn't the same as continuing with a signal, but it will do - * for normal use. strace only continues with a signal if the - * stopping signal is not SIGTRAP. -brl - */ - if (current->exit_code) { - send_sig(current->exit_code, current, 1); - current->exit_code = 0; - } -} +#ifdef CONFIG_MMU +#include "ptrace_mm.c" +#else +#include "ptrace_no.c" +#endif diff --git a/arch/m68k/kernel/ptrace_mm.c b/arch/m68k/kernel/ptrace_mm.c new file mode 100644 index 000000000000..0b252683cefb --- /dev/null +++ b/arch/m68k/kernel/ptrace_mm.c @@ -0,0 +1,277 @@ +/* + * linux/arch/m68k/kernel/ptrace.c + * + * Copyright (C) 1994 by Hamish Macdonald + * Taken from linux/kernel/ptrace.c and modified for M680x0. + * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of + * this archive for more details. + */ + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/smp.h> +#include <linux/errno.h> +#include <linux/ptrace.h> +#include <linux/user.h> +#include <linux/signal.h> + +#include <asm/uaccess.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/system.h> +#include <asm/processor.h> + +/* + * does not yet catch signals sent when the child dies. + * in exit.c or in signal.c. + */ + +/* determines which bits in the SR the user has access to. */ +/* 1 = access 0 = no access */ +#define SR_MASK 0x001f + +/* sets the trace bits. */ +#define TRACE_BITS 0xC000 +#define T1_BIT 0x8000 +#define T0_BIT 0x4000 + +/* Find the stack offset for a register, relative to thread.esp0. */ +#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg) +#define SW_REG(reg) ((long)&((struct switch_stack *)0)->reg \ + - sizeof(struct switch_stack)) +/* Mapping from PT_xxx to the stack offset at which the register is + saved. Notice that usp has no stack-slot and needs to be treated + specially (see get_reg/put_reg below). */ +static const int regoff[] = { + [0] = PT_REG(d1), + [1] = PT_REG(d2), + [2] = PT_REG(d3), + [3] = PT_REG(d4), + [4] = PT_REG(d5), + [5] = SW_REG(d6), + [6] = SW_REG(d7), + [7] = PT_REG(a0), + [8] = PT_REG(a1), + [9] = PT_REG(a2), + [10] = SW_REG(a3), + [11] = SW_REG(a4), + [12] = SW_REG(a5), + [13] = SW_REG(a6), + [14] = PT_REG(d0), + [15] = -1, + [16] = PT_REG(orig_d0), + [17] = PT_REG(sr), + [18] = PT_REG(pc), +}; + +/* + * Get contents of register REGNO in task TASK. + */ +static inline long get_reg(struct task_struct *task, int regno) +{ + unsigned long *addr; + + if (regno == PT_USP) + addr = &task->thread.usp; + else if (regno < ARRAY_SIZE(regoff)) + addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); + else + return 0; + /* Need to take stkadj into account. */ + if (regno == PT_SR || regno == PT_PC) { + long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj)); + addr = (unsigned long *) ((unsigned long)addr + stkadj); + /* The sr is actually a 16 bit register. */ + if (regno == PT_SR) + return *(unsigned short *)addr; + } + return *addr; +} + +/* + * Write contents of register REGNO in task TASK. + */ +static inline int put_reg(struct task_struct *task, int regno, + unsigned long data) +{ + unsigned long *addr; + + if (regno == PT_USP) + addr = &task->thread.usp; + else if (regno < ARRAY_SIZE(regoff)) + addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); + else + return -1; + /* Need to take stkadj into account. */ + if (regno == PT_SR || regno == PT_PC) { + long stkadj = *(long *)(task->thread.esp0 + PT_REG(stkadj)); + addr = (unsigned long *) ((unsigned long)addr + stkadj); + /* The sr is actually a 16 bit register. */ + if (regno == PT_SR) { + *(unsigned short *)addr = data; + return 0; + } + } + *addr = data; + return 0; +} + +/* + * Make sure the single step bit is not set. + */ +static inline void singlestep_disable(struct task_struct *child) +{ + unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; + put_reg(child, PT_SR, tmp); + clear_tsk_thread_flag(child, TIF_DELAYED_TRACE); +} + +/* + * Called by kernel/ptrace.c when detaching.. + */ +void ptrace_disable(struct task_struct *child) +{ + singlestep_disable(child); +} + +void user_enable_single_step(struct task_struct *child) +{ + unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; + put_reg(child, PT_SR, tmp | T1_BIT); + set_tsk_thread_flag(child, TIF_DELAYED_TRACE); +} + +void user_enable_block_step(struct task_struct *child) +{ + unsigned long tmp = get_reg(child, PT_SR) & ~TRACE_BITS; + put_reg(child, PT_SR, tmp | T0_BIT); +} + +void user_disable_single_step(struct task_struct *child) +{ + singlestep_disable(child); +} + +long arch_ptrace(struct task_struct *child, long request, + unsigned long addr, unsigned long data) +{ + unsigned long tmp; + int i, ret = 0; + int regno = addr >> 2; /* temporary hack. */ + unsigned long __user *datap = (unsigned long __user *) data; + + switch (request) { + /* read the word at location addr in the USER area. */ + case PTRACE_PEEKUSR: + if (addr & 3) + goto out_eio; + + if (regno >= 0 && regno < 19) { + tmp = get_reg(child, regno); + } else if (regno >= 21 && regno < 49) { + tmp = child->thread.fp[regno - 21]; + /* Convert internal fpu reg representation + * into long double format + */ + if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) + tmp = ((tmp & 0xffff0000) << 15) | + ((tmp & 0x0000ffff) << 16); + } else + goto out_eio; + ret = put_user(tmp, datap); + break; + + case PTRACE_POKEUSR: + /* write the word at location addr in the USER area */ + if (addr & 3) + goto out_eio; + + if (regno == PT_SR) { + data &= SR_MASK; + data |= get_reg(child, PT_SR) & ~SR_MASK; + } + if (regno >= 0 && regno < 19) { + if (put_reg(child, regno, data)) + goto out_eio; + } else if (regno >= 21 && regno < 48) { + /* Convert long double format + * into internal fpu reg representation + */ + if (FPU_IS_EMU && (regno < 45) && !(regno % 3)) { + data <<= 15; + data = (data & 0xffff0000) | + ((data & 0x0000ffff) >> 1); + } + child->thread.fp[regno - 21] = data; + } else + goto out_eio; + break; + + case PTRACE_GETREGS: /* Get all gp regs from the child. */ + for (i = 0; i < 19; i++) { + tmp = get_reg(child, i); + ret = put_user(tmp, datap); + if (ret) + break; + datap++; + } + break; + + case PTRACE_SETREGS: /* Set all gp regs in the child. */ + for (i = 0; i < 19; i++) { + ret = get_user(tmp, datap); + if (ret) + break; + if (i == PT_SR) { + tmp &= SR_MASK; + tmp |= get_reg(child, PT_SR) & ~SR_MASK; + } + put_reg(child, i, tmp); + datap++; + } + break; + + case PTRACE_GETFPREGS: /* Get the child FPU state. */ + if (copy_to_user(datap, &child->thread.fp, + sizeof(struct user_m68kfp_struct))) + ret = -EFAULT; + break; + + case PTRACE_SETFPREGS: /* Set the child FPU state. */ + if (copy_from_user(&child->thread.fp, datap, + sizeof(struct user_m68kfp_struct))) + ret = -EFAULT; + break; + + case PTRACE_GET_THREAD_AREA: + ret = put_user(task_thread_info(child)->tp_value, datap); + break; + + default: + ret = ptrace_request(child, request, addr, data); + break; + } + + return ret; +out_eio: + return -EIO; +} + +asmlinkage void syscall_trace(void) +{ + ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) + ? 0x80 : 0)); + /* + * this isn't the same as continuing with a signal, but it will do + * for normal use. strace only continues with a signal if the + * stopping signal is not SIGTRAP. -brl + */ + if (current->exit_code) { + send_sig(current->exit_code, current, 1); + current->exit_code = 0; + } +} diff --git a/arch/m68k/kernel/ptrace_no.c b/arch/m68k/kernel/ptrace_no.c new file mode 100644 index 000000000000..6709fb707335 --- /dev/null +++ b/arch/m68k/kernel/ptrace_no.c @@ -0,0 +1,255 @@ +/* + * linux/arch/m68knommu/kernel/ptrace.c + * + * Copyright (C) 1994 by Hamish Macdonald + * Taken from linux/kernel/ptrace.c and modified for M680x0. + * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of + * this archive for more details. + */ + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/smp.h> +#include <linux/errno.h> +#include <linux/ptrace.h> +#include <linux/user.h> +#include <linux/signal.h> +#include <linux/tracehook.h> + +#include <asm/uaccess.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/system.h> +#include <asm/processor.h> + +/* + * does not yet catch signals sent when the child dies. + * in exit.c or in signal.c. + */ + +/* determines which bits in the SR the user has access to. */ +/* 1 = access 0 = no access */ +#define SR_MASK 0x001f + +/* sets the trace bits. */ +#define TRACE_BITS 0x8000 + +/* Find the stack offset for a register, relative to thread.esp0. */ +#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg) +#define SW_REG(reg) ((long)&((struct switch_stack *)0)->reg \ + - sizeof(struct switch_stack)) +/* Mapping from PT_xxx to the stack offset at which the register is + saved. Notice that usp has no stack-slot and needs to be treated + specially (see get_reg/put_reg below). */ +static int regoff[] = { + PT_REG(d1), PT_REG(d2), PT_REG(d3), PT_REG(d4), + PT_REG(d5), SW_REG(d6), SW_REG(d7), PT_REG(a0), + PT_REG(a1), PT_REG(a2), SW_REG(a3), SW_REG(a4), + SW_REG(a5), SW_REG(a6), PT_REG(d0), -1, + PT_REG(orig_d0), PT_REG(sr), PT_REG(pc), +}; + +/* + * Get contents of register REGNO in task TASK. + */ +static inline long get_reg(struct task_struct *task, int regno) +{ + unsigned long *addr; + + if (regno == PT_USP) + addr = &task->thread.usp; + else if (regno < ARRAY_SIZE(regoff)) + addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); + else + return 0; + return *addr; +} + +/* + * Write contents of register REGNO in task TASK. + */ +static inline int put_reg(struct task_struct *task, int regno, + unsigned long data) +{ + unsigned long *addr; + + if (regno == PT_USP) + addr = &task->thread.usp; + else if (regno < ARRAY_SIZE(regoff)) + addr = (unsigned long *) (task->thread.esp0 + regoff[regno]); + else + return -1; + *addr = data; + return 0; +} + +void user_enable_single_step(struct task_struct *task) +{ + unsigned long srflags; + srflags = get_reg(task, PT_SR) | (TRACE_BITS << 16); + put_reg(task, PT_SR, srflags); +} + +void user_disable_single_step(struct task_struct *task) +{ + unsigned long srflags; + srflags = get_reg(task, PT_SR) & ~(TRACE_BITS << 16); + put_reg(task, PT_SR, srflags); +} + +/* + * Called by kernel/ptrace.c when detaching.. + * + * Make sure the single step bit is not set. + */ +void ptrace_disable(struct task_struct *child) +{ + /* make sure the single step bit is not set. */ + user_disable_single_step(child); +} + +long arch_ptrace(struct task_struct *child, long request, + unsigned long addr, unsigned long data) +{ + int ret; + int regno = addr >> 2; + unsigned long __user *datap = (unsigned long __user *) data; + + switch (request) { + /* read the word at location addr in the USER area. */ + case PTRACE_PEEKUSR: { + unsigned long tmp; + + ret = -EIO; + if ((addr & 3) || addr > sizeof(struct user) - 3) + break; + + tmp = 0; /* Default return condition */ + ret = -EIO; + if (regno < 19) { + tmp = get_reg(child, regno); + if (regno == PT_SR) + tmp >>= 16; + } else if (regno >= 21 && regno < 49) { + tmp = child->thread.fp[regno - 21]; + } else if (regno == 49) { + tmp = child->mm->start_code; + } else if (regno == 50) { + tmp = child->mm->start_data; + } else if (regno == 51) { + tmp = child->mm->end_code; + } else + break; + ret = put_user(tmp, datap); + break; + } + + case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ + ret = -EIO; + if ((addr & 3) || addr > sizeof(struct user) - 3) + break; + + if (regno == PT_SR) { + data &= SR_MASK; + data <<= 16; + data |= get_reg(child, PT_SR) & ~(SR_MASK << 16); + } + if (regno < 19) { + if (put_reg(child, regno, data)) + break; + ret = 0; + break; + } + if (regno >= 21 && regno < 48) + { + child->thread.fp[regno - 21] = data; + ret = 0; + } + break; + + case PTRACE_GETREGS: { /* Get all gp regs from the child. */ + int i; + unsigned long tmp; + for (i = 0; i < 19; i++) { + tmp = get_reg(child, i); + if (i == PT_SR) + tmp >>= 16; + if (put_user(tmp, datap)) { + ret = -EFAULT; + break; + } + datap++; + } + ret = 0; + break; + } + + case PTRACE_SETREGS: { /* Set all gp regs in the child. */ + int i; + unsigned long tmp; + for (i = 0; i < 19; i++) { + if (get_user(tmp, datap)) { + ret = -EFAULT; + break; + } + if (i == PT_SR) { + tmp &= SR_MASK; + tmp <<= 16; + tmp |= get_reg(child, PT_SR) & ~(SR_MASK << 16); + } + put_reg(child, i, tmp); + datap++; + } + ret = 0; + break; + } + +#ifdef PTRACE_GETFPREGS + case PTRACE_GETFPREGS: { /* Get the child FPU state. */ + ret = 0; + if (copy_to_user(datap, &child->thread.fp, + sizeof(struct user_m68kfp_struct))) + ret = -EFAULT; + break; + } +#endif + +#ifdef PTRACE_SETFPREGS + case PTRACE_SETFPREGS: { /* Set the child FPU state. */ + ret = 0; + if (copy_from_user(&child->thread.fp, datap, + sizeof(struct user_m68kfp_struct))) + ret = -EFAULT; + break; + } +#endif + + case PTRACE_GET_THREAD_AREA: + ret = put_user(task_thread_info(child)->tp_value, datap); + break; + + default: + ret = ptrace_request(child, request, addr, data); + break; + } + return ret; +} + +asmlinkage int syscall_trace_enter(void) +{ + int ret = 0; + + if (test_thread_flag(TIF_SYSCALL_TRACE)) + ret = tracehook_report_syscall_entry(task_pt_regs(current)); + return ret; +} + +asmlinkage void syscall_trace_leave(void) +{ + if (test_thread_flag(TIF_SYSCALL_TRACE)) + tracehook_report_syscall_exit(task_pt_regs(current), 0); +} diff --git a/arch/m68k/kernel/setup.c b/arch/m68k/kernel/setup.c index 334d83640376..4bf129f1d2e2 100644 --- a/arch/m68k/kernel/setup.c +++ b/arch/m68k/kernel/setup.c @@ -1,533 +1,5 @@ -/* - * linux/arch/m68k/kernel/setup.c - * - * Copyright (C) 1995 Hamish Macdonald - */ - -/* - * This file handles the architecture-dependent parts of system setup - */ - -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/fs.h> -#include <linux/console.h> -#include <linux/genhd.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/module.h> -#include <linux/initrd.h> - -#include <asm/bootinfo.h> -#include <asm/sections.h> -#include <asm/setup.h> -#include <asm/fpu.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/machdep.h> -#ifdef CONFIG_AMIGA -#include <asm/amigahw.h> -#endif -#ifdef CONFIG_ATARI -#include <asm/atarihw.h> -#include <asm/atari_stram.h> -#endif -#ifdef CONFIG_SUN3X -#include <asm/dvma.h> -#endif -#include <asm/natfeat.h> - -#if !FPSTATESIZE || !NR_IRQS -#warning No CPU/platform type selected, your kernel will not work! -#warning Are you building an allnoconfig kernel? -#endif - -unsigned long m68k_machtype; -EXPORT_SYMBOL(m68k_machtype); -unsigned long m68k_cputype; -EXPORT_SYMBOL(m68k_cputype); -unsigned long m68k_fputype; -unsigned long m68k_mmutype; -EXPORT_SYMBOL(m68k_mmutype); -#ifdef CONFIG_VME -unsigned long vme_brdtype; -EXPORT_SYMBOL(vme_brdtype); -#endif - -int m68k_is040or060; -EXPORT_SYMBOL(m68k_is040or060); - -extern unsigned long availmem; - -int m68k_num_memory; -EXPORT_SYMBOL(m68k_num_memory); -int m68k_realnum_memory; -EXPORT_SYMBOL(m68k_realnum_memory); -unsigned long m68k_memoffset; -struct mem_info m68k_memory[NUM_MEMINFO]; -EXPORT_SYMBOL(m68k_memory); - -struct mem_info m68k_ramdisk; - -static char m68k_command_line[CL_SIZE]; - -void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL; -/* machine dependent irq functions */ -void (*mach_init_IRQ) (void) __initdata = NULL; -void (*mach_get_model) (char *model); -void (*mach_get_hardware_list) (struct seq_file *m); -/* machine dependent timer functions */ -unsigned long (*mach_gettimeoffset) (void); -int (*mach_hwclk) (int, struct rtc_time*); -EXPORT_SYMBOL(mach_hwclk); -int (*mach_set_clock_mmss) (unsigned long); -unsigned int (*mach_get_ss)(void); -int (*mach_get_rtc_pll)(struct rtc_pll_info *); -int (*mach_set_rtc_pll)(struct rtc_pll_info *); -EXPORT_SYMBOL(mach_get_ss); -EXPORT_SYMBOL(mach_get_rtc_pll); -EXPORT_SYMBOL(mach_set_rtc_pll); -void (*mach_reset)( void ); -void (*mach_halt)( void ); -void (*mach_power_off)( void ); -long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */ -#ifdef CONFIG_HEARTBEAT -void (*mach_heartbeat) (int); -EXPORT_SYMBOL(mach_heartbeat); -#endif -#ifdef CONFIG_M68K_L2_CACHE -void (*mach_l2_flush) (int); -#endif -#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) -void (*mach_beep)(unsigned int, unsigned int); -EXPORT_SYMBOL(mach_beep); -#endif -#if defined(CONFIG_ISA) && defined(MULTI_ISA) -int isa_type; -int isa_sex; -EXPORT_SYMBOL(isa_type); -EXPORT_SYMBOL(isa_sex); -#endif - -extern int amiga_parse_bootinfo(const struct bi_record *); -extern int atari_parse_bootinfo(const struct bi_record *); -extern int mac_parse_bootinfo(const struct bi_record *); -extern int q40_parse_bootinfo(const struct bi_record *); -extern int bvme6000_parse_bootinfo(const struct bi_record *); -extern int mvme16x_parse_bootinfo(const struct bi_record *); -extern int mvme147_parse_bootinfo(const struct bi_record *); -extern int hp300_parse_bootinfo(const struct bi_record *); -extern int apollo_parse_bootinfo(const struct bi_record *); - -extern void config_amiga(void); -extern void config_atari(void); -extern void config_mac(void); -extern void config_sun3(void); -extern void config_apollo(void); -extern void config_mvme147(void); -extern void config_mvme16x(void); -extern void config_bvme6000(void); -extern void config_hp300(void); -extern void config_q40(void); -extern void config_sun3x(void); - -#define MASK_256K 0xfffc0000 - -extern void paging_init(void); - -static void __init m68k_parse_bootinfo(const struct bi_record *record) -{ - while (record->tag != BI_LAST) { - int unknown = 0; - const unsigned long *data = record->data; - - switch (record->tag) { - case BI_MACHTYPE: - case BI_CPUTYPE: - case BI_FPUTYPE: - case BI_MMUTYPE: - /* Already set up by head.S */ - break; - - case BI_MEMCHUNK: - if (m68k_num_memory < NUM_MEMINFO) { - m68k_memory[m68k_num_memory].addr = data[0]; - m68k_memory[m68k_num_memory].size = data[1]; - m68k_num_memory++; - } else - printk("m68k_parse_bootinfo: too many memory chunks\n"); - break; - - case BI_RAMDISK: - m68k_ramdisk.addr = data[0]; - m68k_ramdisk.size = data[1]; - break; - - case BI_COMMAND_LINE: - strlcpy(m68k_command_line, (const char *)data, - sizeof(m68k_command_line)); - break; - - default: - if (MACH_IS_AMIGA) - unknown = amiga_parse_bootinfo(record); - else if (MACH_IS_ATARI) - unknown = atari_parse_bootinfo(record); - else if (MACH_IS_MAC) - unknown = mac_parse_bootinfo(record); - else if (MACH_IS_Q40) - unknown = q40_parse_bootinfo(record); - else if (MACH_IS_BVME6000) - unknown = bvme6000_parse_bootinfo(record); - else if (MACH_IS_MVME16x) - unknown = mvme16x_parse_bootinfo(record); - else if (MACH_IS_MVME147) - unknown = mvme147_parse_bootinfo(record); - else if (MACH_IS_HP300) - unknown = hp300_parse_bootinfo(record); - else if (MACH_IS_APOLLO) - unknown = apollo_parse_bootinfo(record); - else - unknown = 1; - } - if (unknown) - printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n", - record->tag); - record = (struct bi_record *)((unsigned long)record + - record->size); - } - - m68k_realnum_memory = m68k_num_memory; -#ifdef CONFIG_SINGLE_MEMORY_CHUNK - if (m68k_num_memory > 1) { - printk("Ignoring last %i chunks of physical memory\n", - (m68k_num_memory - 1)); - m68k_num_memory = 1; - } -#endif -} - -void __init setup_arch(char **cmdline_p) -{ - int i; - - /* The bootinfo is located right after the kernel bss */ - m68k_parse_bootinfo((const struct bi_record *)_end); - - if (CPU_IS_040) - m68k_is040or060 = 4; - else if (CPU_IS_060) - m68k_is040or060 = 6; - - /* FIXME: m68k_fputype is passed in by Penguin booter, which can - * be confused by software FPU emulation. BEWARE. - * We should really do our own FPU check at startup. - * [what do we do with buggy 68LC040s? if we have problems - * with them, we should add a test to check_bugs() below] */ -#ifndef CONFIG_M68KFPU_EMU_ONLY - /* clear the fpu if we have one */ - if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) { - volatile int zero = 0; - asm volatile ("frestore %0" : : "m" (zero)); - } -#endif - - if (CPU_IS_060) { - u32 pcr; - - asm (".chip 68060; movec %%pcr,%0; .chip 68k" - : "=d" (pcr)); - if (((pcr >> 8) & 0xff) <= 5) { - printk("Enabling workaround for errata I14\n"); - asm (".chip 68060; movec %0,%%pcr; .chip 68k" - : : "d" (pcr | 0x20)); - } - } - - init_mm.start_code = PAGE_OFFSET; - init_mm.end_code = (unsigned long)_etext; - init_mm.end_data = (unsigned long)_edata; - init_mm.brk = (unsigned long)_end; - - *cmdline_p = m68k_command_line; - memcpy(boot_command_line, *cmdline_p, CL_SIZE); - - parse_early_param(); - -#ifdef CONFIG_DUMMY_CONSOLE - conswitchp = &dummy_con; -#endif - - switch (m68k_machtype) { -#ifdef CONFIG_AMIGA - case MACH_AMIGA: - config_amiga(); - break; -#endif -#ifdef CONFIG_ATARI - case MACH_ATARI: - config_atari(); - break; -#endif -#ifdef CONFIG_MAC - case MACH_MAC: - config_mac(); - break; -#endif -#ifdef CONFIG_SUN3 - case MACH_SUN3: - config_sun3(); - break; -#endif -#ifdef CONFIG_APOLLO - case MACH_APOLLO: - config_apollo(); - break; -#endif -#ifdef CONFIG_MVME147 - case MACH_MVME147: - config_mvme147(); - break; -#endif -#ifdef CONFIG_MVME16x - case MACH_MVME16x: - config_mvme16x(); - break; -#endif -#ifdef CONFIG_BVME6000 - case MACH_BVME6000: - config_bvme6000(); - break; -#endif -#ifdef CONFIG_HP300 - case MACH_HP300: - config_hp300(); - break; -#endif -#ifdef CONFIG_Q40 - case MACH_Q40: - config_q40(); - break; -#endif -#ifdef CONFIG_SUN3X - case MACH_SUN3X: - config_sun3x(); - break; -#endif - default: - panic("No configuration setup"); - } - -#ifdef CONFIG_NATFEAT - nf_init(); -#endif - - paging_init(); - -#ifndef CONFIG_SUN3 - for (i = 1; i < m68k_num_memory; i++) - free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr, - m68k_memory[i].size); -#ifdef CONFIG_BLK_DEV_INITRD - if (m68k_ramdisk.size) { - reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)), - m68k_ramdisk.addr, m68k_ramdisk.size, - BOOTMEM_DEFAULT); - initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr); - initrd_end = initrd_start + m68k_ramdisk.size; - printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end); - } -#endif - -#ifdef CONFIG_ATARI - if (MACH_IS_ATARI) - atari_stram_reserve_pages((void *)availmem); -#endif -#ifdef CONFIG_SUN3X - if (MACH_IS_SUN3X) { - dvma_init(); - } -#endif - -#endif /* !CONFIG_SUN3 */ - -/* set ISA defs early as possible */ -#if defined(CONFIG_ISA) && defined(MULTI_ISA) - if (MACH_IS_Q40) { - isa_type = ISA_TYPE_Q40; - isa_sex = 0; - } -#ifdef CONFIG_AMIGA_PCMCIA - if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) { - isa_type = ISA_TYPE_AG; - isa_sex = 1; - } -#endif -#endif -} - -static int show_cpuinfo(struct seq_file *m, void *v) -{ - const char *cpu, *mmu, *fpu; - unsigned long clockfreq, clockfactor; - -#define LOOP_CYCLES_68020 (8) -#define LOOP_CYCLES_68030 (8) -#define LOOP_CYCLES_68040 (3) -#define LOOP_CYCLES_68060 (1) - - if (CPU_IS_020) { - cpu = "68020"; - clockfactor = LOOP_CYCLES_68020; - } else if (CPU_IS_030) { - cpu = "68030"; - clockfactor = LOOP_CYCLES_68030; - } else if (CPU_IS_040) { - cpu = "68040"; - clockfactor = LOOP_CYCLES_68040; - } else if (CPU_IS_060) { - cpu = "68060"; - clockfactor = LOOP_CYCLES_68060; - } else { - cpu = "680x0"; - clockfactor = 0; - } - -#ifdef CONFIG_M68KFPU_EMU_ONLY - fpu = "none(soft float)"; +#ifdef CONFIG_MMU +#include "setup_mm.c" #else - if (m68k_fputype & FPU_68881) - fpu = "68881"; - else if (m68k_fputype & FPU_68882) - fpu = "68882"; - else if (m68k_fputype & FPU_68040) - fpu = "68040"; - else if (m68k_fputype & FPU_68060) - fpu = "68060"; - else if (m68k_fputype & FPU_SUNFPA) - fpu = "Sun FPA"; - else - fpu = "none"; -#endif - - if (m68k_mmutype & MMU_68851) - mmu = "68851"; - else if (m68k_mmutype & MMU_68030) - mmu = "68030"; - else if (m68k_mmutype & MMU_68040) - mmu = "68040"; - else if (m68k_mmutype & MMU_68060) - mmu = "68060"; - else if (m68k_mmutype & MMU_SUN3) - mmu = "Sun-3"; - else if (m68k_mmutype & MMU_APOLLO) - mmu = "Apollo"; - else - mmu = "unknown"; - - clockfreq = loops_per_jiffy * HZ * clockfactor; - - seq_printf(m, "CPU:\t\t%s\n" - "MMU:\t\t%s\n" - "FPU:\t\t%s\n" - "Clocking:\t%lu.%1luMHz\n" - "BogoMips:\t%lu.%02lu\n" - "Calibration:\t%lu loops\n", - cpu, mmu, fpu, - clockfreq/1000000,(clockfreq/100000)%10, - loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100, - loops_per_jiffy); - return 0; -} - -static void *c_start(struct seq_file *m, loff_t *pos) -{ - return *pos < 1 ? (void *)1 : NULL; -} -static void *c_next(struct seq_file *m, void *v, loff_t *pos) -{ - ++*pos; - return NULL; -} -static void c_stop(struct seq_file *m, void *v) -{ -} -const struct seq_operations cpuinfo_op = { - .start = c_start, - .next = c_next, - .stop = c_stop, - .show = show_cpuinfo, -}; - -#ifdef CONFIG_PROC_HARDWARE -static int hardware_proc_show(struct seq_file *m, void *v) -{ - char model[80]; - unsigned long mem; - int i; - - if (mach_get_model) - mach_get_model(model); - else - strcpy(model, "Unknown m68k"); - - seq_printf(m, "Model:\t\t%s\n", model); - for (mem = 0, i = 0; i < m68k_num_memory; i++) - mem += m68k_memory[i].size; - seq_printf(m, "System Memory:\t%ldK\n", mem >> 10); - - if (mach_get_hardware_list) - mach_get_hardware_list(m); - - return 0; -} - -static int hardware_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, hardware_proc_show, NULL); -} - -static const struct file_operations hardware_proc_fops = { - .open = hardware_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int __init proc_hardware_init(void) -{ - proc_create("hardware", 0, NULL, &hardware_proc_fops); - return 0; -} -module_init(proc_hardware_init); +#include "setup_no.c" #endif - -void check_bugs(void) -{ -#ifndef CONFIG_M68KFPU_EMU - if (m68k_fputype == 0) { - printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, " - "WHICH IS REQUIRED BY LINUX/M68K ***\n"); - printk(KERN_EMERG "Upgrade your hardware or join the FPU " - "emulation project\n"); - panic("no FPU"); - } -#endif /* !CONFIG_M68KFPU_EMU */ -} - -#ifdef CONFIG_ADB -static int __init adb_probe_sync_enable (char *str) { - extern int __adb_probe_sync; - __adb_probe_sync = 1; - return 1; -} - -__setup("adb_sync", adb_probe_sync_enable); -#endif /* CONFIG_ADB */ diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c new file mode 100644 index 000000000000..334d83640376 --- /dev/null +++ b/arch/m68k/kernel/setup_mm.c @@ -0,0 +1,533 @@ +/* + * linux/arch/m68k/kernel/setup.c + * + * Copyright (C) 1995 Hamish Macdonald + */ + +/* + * This file handles the architecture-dependent parts of system setup + */ + +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/sched.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/fs.h> +#include <linux/console.h> +#include <linux/genhd.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/init.h> +#include <linux/bootmem.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/module.h> +#include <linux/initrd.h> + +#include <asm/bootinfo.h> +#include <asm/sections.h> +#include <asm/setup.h> +#include <asm/fpu.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/machdep.h> +#ifdef CONFIG_AMIGA +#include <asm/amigahw.h> +#endif +#ifdef CONFIG_ATARI +#include <asm/atarihw.h> +#include <asm/atari_stram.h> +#endif +#ifdef CONFIG_SUN3X +#include <asm/dvma.h> +#endif +#include <asm/natfeat.h> + +#if !FPSTATESIZE || !NR_IRQS +#warning No CPU/platform type selected, your kernel will not work! +#warning Are you building an allnoconfig kernel? +#endif + +unsigned long m68k_machtype; +EXPORT_SYMBOL(m68k_machtype); +unsigned long m68k_cputype; +EXPORT_SYMBOL(m68k_cputype); +unsigned long m68k_fputype; +unsigned long m68k_mmutype; +EXPORT_SYMBOL(m68k_mmutype); +#ifdef CONFIG_VME +unsigned long vme_brdtype; +EXPORT_SYMBOL(vme_brdtype); +#endif + +int m68k_is040or060; +EXPORT_SYMBOL(m68k_is040or060); + +extern unsigned long availmem; + +int m68k_num_memory; +EXPORT_SYMBOL(m68k_num_memory); +int m68k_realnum_memory; +EXPORT_SYMBOL(m68k_realnum_memory); +unsigned long m68k_memoffset; +struct mem_info m68k_memory[NUM_MEMINFO]; +EXPORT_SYMBOL(m68k_memory); + +struct mem_info m68k_ramdisk; + +static char m68k_command_line[CL_SIZE]; + +void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL; +/* machine dependent irq functions */ +void (*mach_init_IRQ) (void) __initdata = NULL; +void (*mach_get_model) (char *model); +void (*mach_get_hardware_list) (struct seq_file *m); +/* machine dependent timer functions */ +unsigned long (*mach_gettimeoffset) (void); +int (*mach_hwclk) (int, struct rtc_time*); +EXPORT_SYMBOL(mach_hwclk); +int (*mach_set_clock_mmss) (unsigned long); +unsigned int (*mach_get_ss)(void); +int (*mach_get_rtc_pll)(struct rtc_pll_info *); +int (*mach_set_rtc_pll)(struct rtc_pll_info *); +EXPORT_SYMBOL(mach_get_ss); +EXPORT_SYMBOL(mach_get_rtc_pll); +EXPORT_SYMBOL(mach_set_rtc_pll); +void (*mach_reset)( void ); +void (*mach_halt)( void ); +void (*mach_power_off)( void ); +long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */ +#ifdef CONFIG_HEARTBEAT +void (*mach_heartbeat) (int); +EXPORT_SYMBOL(mach_heartbeat); +#endif +#ifdef CONFIG_M68K_L2_CACHE +void (*mach_l2_flush) (int); +#endif +#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) +void (*mach_beep)(unsigned int, unsigned int); +EXPORT_SYMBOL(mach_beep); +#endif +#if defined(CONFIG_ISA) && defined(MULTI_ISA) +int isa_type; +int isa_sex; +EXPORT_SYMBOL(isa_type); +EXPORT_SYMBOL(isa_sex); +#endif + +extern int amiga_parse_bootinfo(const struct bi_record *); +extern int atari_parse_bootinfo(const struct bi_record *); +extern int mac_parse_bootinfo(const struct bi_record *); +extern int q40_parse_bootinfo(const struct bi_record *); +extern int bvme6000_parse_bootinfo(const struct bi_record *); +extern int mvme16x_parse_bootinfo(const struct bi_record *); +extern int mvme147_parse_bootinfo(const struct bi_record *); +extern int hp300_parse_bootinfo(const struct bi_record *); +extern int apollo_parse_bootinfo(const struct bi_record *); + +extern void config_amiga(void); +extern void config_atari(void); +extern void config_mac(void); +extern void config_sun3(void); +extern void config_apollo(void); +extern void config_mvme147(void); +extern void config_mvme16x(void); +extern void config_bvme6000(void); +extern void config_hp300(void); +extern void config_q40(void); +extern void config_sun3x(void); + +#define MASK_256K 0xfffc0000 + +extern void paging_init(void); + +static void __init m68k_parse_bootinfo(const struct bi_record *record) +{ + while (record->tag != BI_LAST) { + int unknown = 0; + const unsigned long *data = record->data; + + switch (record->tag) { + case BI_MACHTYPE: + case BI_CPUTYPE: + case BI_FPUTYPE: + case BI_MMUTYPE: + /* Already set up by head.S */ + break; + + case BI_MEMCHUNK: + if (m68k_num_memory < NUM_MEMINFO) { + m68k_memory[m68k_num_memory].addr = data[0]; + m68k_memory[m68k_num_memory].size = data[1]; + m68k_num_memory++; + } else + printk("m68k_parse_bootinfo: too many memory chunks\n"); + break; + + case BI_RAMDISK: + m68k_ramdisk.addr = data[0]; + m68k_ramdisk.size = data[1]; + break; + + case BI_COMMAND_LINE: + strlcpy(m68k_command_line, (const char *)data, + sizeof(m68k_command_line)); + break; + + default: + if (MACH_IS_AMIGA) + unknown = amiga_parse_bootinfo(record); + else if (MACH_IS_ATARI) + unknown = atari_parse_bootinfo(record); + else if (MACH_IS_MAC) + unknown = mac_parse_bootinfo(record); + else if (MACH_IS_Q40) + unknown = q40_parse_bootinfo(record); + else if (MACH_IS_BVME6000) + unknown = bvme6000_parse_bootinfo(record); + else if (MACH_IS_MVME16x) + unknown = mvme16x_parse_bootinfo(record); + else if (MACH_IS_MVME147) + unknown = mvme147_parse_bootinfo(record); + else if (MACH_IS_HP300) + unknown = hp300_parse_bootinfo(record); + else if (MACH_IS_APOLLO) + unknown = apollo_parse_bootinfo(record); + else + unknown = 1; + } + if (unknown) + printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n", + record->tag); + record = (struct bi_record *)((unsigned long)record + + record->size); + } + + m68k_realnum_memory = m68k_num_memory; +#ifdef CONFIG_SINGLE_MEMORY_CHUNK + if (m68k_num_memory > 1) { + printk("Ignoring last %i chunks of physical memory\n", + (m68k_num_memory - 1)); + m68k_num_memory = 1; + } +#endif +} + +void __init setup_arch(char **cmdline_p) +{ + int i; + + /* The bootinfo is located right after the kernel bss */ + m68k_parse_bootinfo((const struct bi_record *)_end); + + if (CPU_IS_040) + m68k_is040or060 = 4; + else if (CPU_IS_060) + m68k_is040or060 = 6; + + /* FIXME: m68k_fputype is passed in by Penguin booter, which can + * be confused by software FPU emulation. BEWARE. + * We should really do our own FPU check at startup. + * [what do we do with buggy 68LC040s? if we have problems + * with them, we should add a test to check_bugs() below] */ +#ifndef CONFIG_M68KFPU_EMU_ONLY + /* clear the fpu if we have one */ + if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) { + volatile int zero = 0; + asm volatile ("frestore %0" : : "m" (zero)); + } +#endif + + if (CPU_IS_060) { + u32 pcr; + + asm (".chip 68060; movec %%pcr,%0; .chip 68k" + : "=d" (pcr)); + if (((pcr >> 8) & 0xff) <= 5) { + printk("Enabling workaround for errata I14\n"); + asm (".chip 68060; movec %0,%%pcr; .chip 68k" + : : "d" (pcr | 0x20)); + } + } + + init_mm.start_code = PAGE_OFFSET; + init_mm.end_code = (unsigned long)_etext; + init_mm.end_data = (unsigned long)_edata; + init_mm.brk = (unsigned long)_end; + + *cmdline_p = m68k_command_line; + memcpy(boot_command_line, *cmdline_p, CL_SIZE); + + parse_early_param(); + +#ifdef CONFIG_DUMMY_CONSOLE + conswitchp = &dummy_con; +#endif + + switch (m68k_machtype) { +#ifdef CONFIG_AMIGA + case MACH_AMIGA: + config_amiga(); + break; +#endif +#ifdef CONFIG_ATARI + case MACH_ATARI: + config_atari(); + break; +#endif +#ifdef CONFIG_MAC + case MACH_MAC: + config_mac(); + break; +#endif +#ifdef CONFIG_SUN3 + case MACH_SUN3: + config_sun3(); + break; +#endif +#ifdef CONFIG_APOLLO + case MACH_APOLLO: + config_apollo(); + break; +#endif +#ifdef CONFIG_MVME147 + case MACH_MVME147: + config_mvme147(); + break; +#endif +#ifdef CONFIG_MVME16x + case MACH_MVME16x: + config_mvme16x(); + break; +#endif +#ifdef CONFIG_BVME6000 + case MACH_BVME6000: + config_bvme6000(); + break; +#endif +#ifdef CONFIG_HP300 + case MACH_HP300: + config_hp300(); + break; +#endif +#ifdef CONFIG_Q40 + case MACH_Q40: + config_q40(); + break; +#endif +#ifdef CONFIG_SUN3X + case MACH_SUN3X: + config_sun3x(); + break; +#endif + default: + panic("No configuration setup"); + } + +#ifdef CONFIG_NATFEAT + nf_init(); +#endif + + paging_init(); + +#ifndef CONFIG_SUN3 + for (i = 1; i < m68k_num_memory; i++) + free_bootmem_node(NODE_DATA(i), m68k_memory[i].addr, + m68k_memory[i].size); +#ifdef CONFIG_BLK_DEV_INITRD + if (m68k_ramdisk.size) { + reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)), + m68k_ramdisk.addr, m68k_ramdisk.size, + BOOTMEM_DEFAULT); + initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr); + initrd_end = initrd_start + m68k_ramdisk.size; + printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end); + } +#endif + +#ifdef CONFIG_ATARI + if (MACH_IS_ATARI) + atari_stram_reserve_pages((void *)availmem); +#endif +#ifdef CONFIG_SUN3X + if (MACH_IS_SUN3X) { + dvma_init(); + } +#endif + +#endif /* !CONFIG_SUN3 */ + +/* set ISA defs early as possible */ +#if defined(CONFIG_ISA) && defined(MULTI_ISA) + if (MACH_IS_Q40) { + isa_type = ISA_TYPE_Q40; + isa_sex = 0; + } +#ifdef CONFIG_AMIGA_PCMCIA + if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) { + isa_type = ISA_TYPE_AG; + isa_sex = 1; + } +#endif +#endif +} + +static int show_cpuinfo(struct seq_file *m, void *v) +{ + const char *cpu, *mmu, *fpu; + unsigned long clockfreq, clockfactor; + +#define LOOP_CYCLES_68020 (8) +#define LOOP_CYCLES_68030 (8) +#define LOOP_CYCLES_68040 (3) +#define LOOP_CYCLES_68060 (1) + + if (CPU_IS_020) { + cpu = "68020"; + clockfactor = LOOP_CYCLES_68020; + } else if (CPU_IS_030) { + cpu = "68030"; + clockfactor = LOOP_CYCLES_68030; + } else if (CPU_IS_040) { + cpu = "68040"; + clockfactor = LOOP_CYCLES_68040; + } else if (CPU_IS_060) { + cpu = "68060"; + clockfactor = LOOP_CYCLES_68060; + } else { + cpu = "680x0"; + clockfactor = 0; + } + +#ifdef CONFIG_M68KFPU_EMU_ONLY + fpu = "none(soft float)"; +#else + if (m68k_fputype & FPU_68881) + fpu = "68881"; + else if (m68k_fputype & FPU_68882) + fpu = "68882"; + else if (m68k_fputype & FPU_68040) + fpu = "68040"; + else if (m68k_fputype & FPU_68060) + fpu = "68060"; + else if (m68k_fputype & FPU_SUNFPA) + fpu = "Sun FPA"; + else + fpu = "none"; +#endif + + if (m68k_mmutype & MMU_68851) + mmu = "68851"; + else if (m68k_mmutype & MMU_68030) + mmu = "68030"; + else if (m68k_mmutype & MMU_68040) + mmu = "68040"; + else if (m68k_mmutype & MMU_68060) + mmu = "68060"; + else if (m68k_mmutype & MMU_SUN3) + mmu = "Sun-3"; + else if (m68k_mmutype & MMU_APOLLO) + mmu = "Apollo"; + else + mmu = "unknown"; + + clockfreq = loops_per_jiffy * HZ * clockfactor; + + seq_printf(m, "CPU:\t\t%s\n" + "MMU:\t\t%s\n" + "FPU:\t\t%s\n" + "Clocking:\t%lu.%1luMHz\n" + "BogoMips:\t%lu.%02lu\n" + "Calibration:\t%lu loops\n", + cpu, mmu, fpu, + clockfreq/1000000,(clockfreq/100000)%10, + loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100, + loops_per_jiffy); + return 0; +} + +static void *c_start(struct seq_file *m, loff_t *pos) +{ + return *pos < 1 ? (void *)1 : NULL; +} +static void *c_next(struct seq_file *m, void *v, loff_t *pos) +{ + ++*pos; + return NULL; +} +static void c_stop(struct seq_file *m, void *v) +{ +} +const struct seq_operations cpuinfo_op = { + .start = c_start, + .next = c_next, + .stop = c_stop, + .show = show_cpuinfo, +}; + +#ifdef CONFIG_PROC_HARDWARE +static int hardware_proc_show(struct seq_file *m, void *v) +{ + char model[80]; + unsigned long mem; + int i; + + if (mach_get_model) + mach_get_model(model); + else + strcpy(model, "Unknown m68k"); + + seq_printf(m, "Model:\t\t%s\n", model); + for (mem = 0, i = 0; i < m68k_num_memory; i++) + mem += m68k_memory[i].size; + seq_printf(m, "System Memory:\t%ldK\n", mem >> 10); + + if (mach_get_hardware_list) + mach_get_hardware_list(m); + + return 0; +} + +static int hardware_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, hardware_proc_show, NULL); +} + +static const struct file_operations hardware_proc_fops = { + .open = hardware_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init proc_hardware_init(void) +{ + proc_create("hardware", 0, NULL, &hardware_proc_fops); + return 0; +} +module_init(proc_hardware_init); +#endif + +void check_bugs(void) +{ +#ifndef CONFIG_M68KFPU_EMU + if (m68k_fputype == 0) { + printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, " + "WHICH IS REQUIRED BY LINUX/M68K ***\n"); + printk(KERN_EMERG "Upgrade your hardware or join the FPU " + "emulation project\n"); + panic("no FPU"); + } +#endif /* !CONFIG_M68KFPU_EMU */ +} + +#ifdef CONFIG_ADB +static int __init adb_probe_sync_enable (char *str) { + extern int __adb_probe_sync; + __adb_probe_sync = 1; + return 1; +} + +__setup("adb_sync", adb_probe_sync_enable); +#endif /* CONFIG_ADB */ diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c new file mode 100644 index 000000000000..16b2de7f5101 --- /dev/null +++ b/arch/m68k/kernel/setup_no.c @@ -0,0 +1,317 @@ +/* + * linux/arch/m68knommu/kernel/setup.c + * + * Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org> + * Copyleft ()) 2000 James D. Schettine {james@telos-systems.com} + * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> + * Copyright (C) 1995 Hamish Macdonald + * Copyright (C) 2000 Lineo Inc. (www.lineo.com) + * Copyright (C) 2001 Lineo, Inc. <www.lineo.com> + * + * 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca> + */ + +/* + * This file handles the architecture-dependent parts of system setup + */ + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/fb.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/console.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/bootmem.h> +#include <linux/seq_file.h> +#include <linux/init.h> +#include <linux/initrd.h> +#include <linux/root_dev.h> + +#include <asm/setup.h> +#include <asm/irq.h> +#include <asm/machdep.h> +#include <asm/pgtable.h> + +unsigned long memory_start; +unsigned long memory_end; + +EXPORT_SYMBOL(memory_start); +EXPORT_SYMBOL(memory_end); + +char __initdata command_line[COMMAND_LINE_SIZE]; + +/* machine dependent timer functions */ +void (*mach_gettod)(int*, int*, int*, int*, int*, int*); +int (*mach_set_clock_mmss)(unsigned long); + +/* machine dependent reboot functions */ +void (*mach_reset)(void); +void (*mach_halt)(void); +void (*mach_power_off)(void); + +#ifdef CONFIG_M68328 +#define CPU_NAME "MC68328" +#endif +#ifdef CONFIG_M68EZ328 +#define CPU_NAME "MC68EZ328" +#endif +#ifdef CONFIG_M68VZ328 +#define CPU_NAME "MC68VZ328" +#endif +#ifdef CONFIG_M68360 +#define CPU_NAME "MC68360" +#endif +#ifndef CPU_NAME +#define CPU_NAME "UNKNOWN" +#endif + +/* + * Different cores have different instruction execution timings. + * The old/traditional 68000 cores are basically all the same, at 16. + * The ColdFire cores vary a little, their values are defined in their + * headers. We default to the standard 68000 value here. + */ +#ifndef CPU_INSTR_PER_JIFFY +#define CPU_INSTR_PER_JIFFY 16 +#endif + +extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end; +extern int _ramstart, _ramend; + +#if defined(CONFIG_UBOOT) +/* + * parse_uboot_commandline + * + * Copies u-boot commandline arguments and store them in the proper linux + * variables. + * + * Assumes: + * _init_sp global contains the address in the stack pointer when the + * kernel starts (see head.S::_start) + * + * U-Boot calling convention: + * (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end); + * + * _init_sp can be parsed as such + * + * _init_sp+00 = u-boot cmd after jsr into kernel (skip) + * _init_sp+04 = &kernel board_info (residual data) + * _init_sp+08 = &initrd_start + * _init_sp+12 = &initrd_end + * _init_sp+16 = &cmd_start + * _init_sp+20 = &cmd_end + * + * This also assumes that the memory locations pointed to are still + * unmodified. U-boot places them near the end of external SDRAM. + * + * Argument(s): + * commandp = the linux commandline arg container to fill. + * size = the sizeof commandp. + * + * Returns: + */ +void parse_uboot_commandline(char *commandp, int size) +{ + extern unsigned long _init_sp; + unsigned long *sp; + unsigned long uboot_kbd; + unsigned long uboot_initrd_start, uboot_initrd_end; + unsigned long uboot_cmd_start, uboot_cmd_end; + + + sp = (unsigned long *)_init_sp; + uboot_kbd = sp[1]; + uboot_initrd_start = sp[2]; + uboot_initrd_end = sp[3]; + uboot_cmd_start = sp[4]; + uboot_cmd_end = sp[5]; + + if (uboot_cmd_start && uboot_cmd_end) + strncpy(commandp, (const char *)uboot_cmd_start, size); +#if defined(CONFIG_BLK_DEV_INITRD) + if (uboot_initrd_start && uboot_initrd_end && + (uboot_initrd_end > uboot_initrd_start)) { + initrd_start = uboot_initrd_start; + initrd_end = uboot_initrd_end; + ROOT_DEV = Root_RAM0; + printk(KERN_INFO "initrd at 0x%lx:0x%lx\n", + initrd_start, initrd_end); + } +#endif /* if defined(CONFIG_BLK_DEV_INITRD) */ +} +#endif /* #if defined(CONFIG_UBOOT) */ + +void __init setup_arch(char **cmdline_p) +{ + int bootmap_size; + + memory_start = PAGE_ALIGN(_ramstart); + memory_end = _ramend; + + init_mm.start_code = (unsigned long) &_stext; + init_mm.end_code = (unsigned long) &_etext; + init_mm.end_data = (unsigned long) &_edata; + init_mm.brk = (unsigned long) 0; + + config_BSP(&command_line[0], sizeof(command_line)); + +#if defined(CONFIG_BOOTPARAM) + strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line)); + command_line[sizeof(command_line) - 1] = 0; +#endif /* CONFIG_BOOTPARAM */ + +#if defined(CONFIG_UBOOT) + /* CONFIG_UBOOT and CONFIG_BOOTPARAM defined, concatenate cmdline */ + #if defined(CONFIG_BOOTPARAM) + /* Add the whitespace separator */ + command_line[strlen(CONFIG_BOOTPARAM_STRING)] = ' '; + /* Parse uboot command line into the rest of the buffer */ + parse_uboot_commandline( + &command_line[(strlen(CONFIG_BOOTPARAM_STRING)+1)], + (sizeof(command_line) - + (strlen(CONFIG_BOOTPARAM_STRING)+1))); + /* Only CONFIG_UBOOT defined, create cmdline */ + #else + parse_uboot_commandline(&command_line[0], sizeof(command_line)); + #endif /* CONFIG_BOOTPARAM */ + command_line[sizeof(command_line) - 1] = 0; +#endif /* CONFIG_UBOOT */ + + printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU_NAME "\n"); + +#ifdef CONFIG_UCDIMM + printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n"); +#endif +#ifdef CONFIG_M68VZ328 + printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n"); +#endif +#ifdef CONFIG_COLDFIRE + printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n"); +#ifdef CONFIG_M5307 + printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n"); +#endif +#ifdef CONFIG_ELITE + printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n"); +#endif +#endif + printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n"); + +#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 ) + printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n"); +#endif +#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 ) + printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n"); +#endif +#if defined (CONFIG_M68360) + printk(KERN_INFO "QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n"); + printk(KERN_INFO "based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n"); +#endif +#ifdef CONFIG_DRAGEN2 + printk(KERN_INFO "DragonEngine II board support by Georges Menie\n"); +#endif +#ifdef CONFIG_M5235EVB + printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n"); +#endif + + pr_debug("KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x " + "BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext, + (int) &_sdata, (int) &_edata, + (int) &_sbss, (int) &_ebss); + pr_debug("MEMORY -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x\n ", + (int) &_ebss, (int) memory_start, + (int) memory_start, (int) memory_end); + + /* Keep a copy of command line */ + *cmdline_p = &command_line[0]; + memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); + boot_command_line[COMMAND_LINE_SIZE-1] = 0; + +#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE) + conswitchp = &dummy_con; +#endif + + /* + * Give all the memory to the bootmap allocator, tell it to put the + * boot mem_map at the start of memory. + */ + bootmap_size = init_bootmem_node( + NODE_DATA(0), + memory_start >> PAGE_SHIFT, /* map goes here */ + PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */ + memory_end >> PAGE_SHIFT); + /* + * Free the usable memory, we have to make sure we do not free + * the bootmem bitmap so we then reserve it after freeing it :-) + */ + free_bootmem(memory_start, memory_end - memory_start); + reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT); + +#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD) + if ((initrd_start > 0) && (initrd_start < initrd_end) && + (initrd_end < memory_end)) + reserve_bootmem(initrd_start, initrd_end - initrd_start, + BOOTMEM_DEFAULT); +#endif /* if defined(CONFIG_BLK_DEV_INITRD) */ + + /* + * Get kmalloc into gear. + */ + paging_init(); +} + +/* + * Get CPU information for use by the procfs. + */ +static int show_cpuinfo(struct seq_file *m, void *v) +{ + char *cpu, *mmu, *fpu; + u_long clockfreq; + + cpu = CPU_NAME; + mmu = "none"; + fpu = "none"; + clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY; + + seq_printf(m, "CPU:\t\t%s\n" + "MMU:\t\t%s\n" + "FPU:\t\t%s\n" + "Clocking:\t%lu.%1luMHz\n" + "BogoMips:\t%lu.%02lu\n" + "Calibration:\t%lu loops\n", + cpu, mmu, fpu, + clockfreq / 1000000, + (clockfreq / 100000) % 10, + (loops_per_jiffy * HZ) / 500000, + ((loops_per_jiffy * HZ) / 5000) % 100, + (loops_per_jiffy * HZ)); + + return 0; +} + +static void *c_start(struct seq_file *m, loff_t *pos) +{ + return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL; +} + +static void *c_next(struct seq_file *m, void *v, loff_t *pos) +{ + ++*pos; + return c_start(m, pos); +} + +static void c_stop(struct seq_file *m, void *v) +{ +} + +const struct seq_operations cpuinfo_op = { + .start = c_start, + .next = c_next, + .stop = c_stop, + .show = show_cpuinfo, +}; + diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c index a0afc239304e..2e25713e2ead 100644 --- a/arch/m68k/kernel/signal.c +++ b/arch/m68k/kernel/signal.c @@ -1,1017 +1,5 @@ -/* - * linux/arch/m68k/kernel/signal.c - * - * Copyright (C) 1991, 1992 Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/* - * Linux/m68k support by Hamish Macdonald - * - * 68060 fixes by Jesper Skov - * - * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab - * - * mathemu support by Roman Zippel - * (Note: fpstate in the signal context is completely ignored for the emulator - * and the internal floating point format is put on stack) - */ - -/* - * ++roman (07/09/96): implemented signal stacks (specially for tosemu on - * Atari :-) Current limitation: Only one sigstack can be active at one time. - * If a second signal with SA_ONSTACK set arrives while working on a sigstack, - * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested - * signal handlers! - */ - -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/syscalls.h> -#include <linux/errno.h> -#include <linux/wait.h> -#include <linux/ptrace.h> -#include <linux/unistd.h> -#include <linux/stddef.h> -#include <linux/highuid.h> -#include <linux/personality.h> -#include <linux/tty.h> -#include <linux/binfmts.h> -#include <linux/module.h> - -#include <asm/setup.h> -#include <asm/uaccess.h> -#include <asm/pgtable.h> -#include <asm/traps.h> -#include <asm/ucontext.h> - -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - -static const int frame_extra_sizes[16] = { - [1] = -1, /* sizeof(((struct frame *)0)->un.fmt1), */ - [2] = sizeof(((struct frame *)0)->un.fmt2), - [3] = sizeof(((struct frame *)0)->un.fmt3), - [4] = sizeof(((struct frame *)0)->un.fmt4), - [5] = -1, /* sizeof(((struct frame *)0)->un.fmt5), */ - [6] = -1, /* sizeof(((struct frame *)0)->un.fmt6), */ - [7] = sizeof(((struct frame *)0)->un.fmt7), - [8] = -1, /* sizeof(((struct frame *)0)->un.fmt8), */ - [9] = sizeof(((struct frame *)0)->un.fmt9), - [10] = sizeof(((struct frame *)0)->un.fmta), - [11] = sizeof(((struct frame *)0)->un.fmtb), - [12] = -1, /* sizeof(((struct frame *)0)->un.fmtc), */ - [13] = -1, /* sizeof(((struct frame *)0)->un.fmtd), */ - [14] = -1, /* sizeof(((struct frame *)0)->un.fmte), */ - [15] = -1, /* sizeof(((struct frame *)0)->un.fmtf), */ -}; - -int handle_kernel_fault(struct pt_regs *regs) -{ - const struct exception_table_entry *fixup; - struct pt_regs *tregs; - - /* Are we prepared to handle this kernel fault? */ - fixup = search_exception_tables(regs->pc); - if (!fixup) - return 0; - - /* Create a new four word stack frame, discarding the old one. */ - regs->stkadj = frame_extra_sizes[regs->format]; - tregs = (struct pt_regs *)((long)regs + regs->stkadj); - tregs->vector = regs->vector; - tregs->format = 0; - tregs->pc = fixup->fixup; - tregs->sr = regs->sr; - - return 1; -} - -/* - * Atomically swap in the new signal mask, and wait for a signal. - */ -asmlinkage int -sys_sigsuspend(int unused0, int unused1, old_sigset_t mask) -{ - mask &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); - current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, mask); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - current->state = TASK_INTERRUPTIBLE; - schedule(); - set_restore_sigmask(); - - return -ERESTARTNOHAND; -} - -asmlinkage int -sys_sigaction(int sig, const struct old_sigaction __user *act, - struct old_sigaction __user *oact) -{ - struct k_sigaction new_ka, old_ka; - int ret; - - if (act) { - old_sigset_t mask; - if (!access_ok(VERIFY_READ, act, sizeof(*act)) || - __get_user(new_ka.sa.sa_handler, &act->sa_handler) || - __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) || - __get_user(new_ka.sa.sa_flags, &act->sa_flags) || - __get_user(mask, &act->sa_mask)) - return -EFAULT; - siginitset(&new_ka.sa.sa_mask, mask); - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || - __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || - __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) || - __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || - __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) - return -EFAULT; - } - - return ret; -} - -asmlinkage int -sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) -{ - return do_sigaltstack(uss, uoss, rdusp()); -} - - -/* - * Do a signal return; undo the signal stack. - * - * Keep the return code on the stack quadword aligned! - * That makes the cache flush below easier. - */ - -struct sigframe -{ - char __user *pretcode; - int sig; - int code; - struct sigcontext __user *psc; - char retcode[8]; - unsigned long extramask[_NSIG_WORDS-1]; - struct sigcontext sc; -}; - -struct rt_sigframe -{ - char __user *pretcode; - int sig; - struct siginfo __user *pinfo; - void __user *puc; - char retcode[8]; - struct siginfo info; - struct ucontext uc; -}; - - -static unsigned char fpu_version; /* version number of fpu, set by setup_frame */ - -static inline int restore_fpu_state(struct sigcontext *sc) -{ - int err = 1; - - if (FPU_IS_EMU) { - /* restore registers */ - memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12); - memcpy(current->thread.fp, sc->sc_fpregs, 24); - return 0; - } - - if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) { - /* Verify the frame format. */ - if (!CPU_IS_060 && (sc->sc_fpstate[0] != fpu_version)) - goto out; - if (CPU_IS_020_OR_030) { - if (m68k_fputype & FPU_68881 && - !(sc->sc_fpstate[1] == 0x18 || sc->sc_fpstate[1] == 0xb4)) - goto out; - if (m68k_fputype & FPU_68882 && - !(sc->sc_fpstate[1] == 0x38 || sc->sc_fpstate[1] == 0xd4)) - goto out; - } else if (CPU_IS_040) { - if (!(sc->sc_fpstate[1] == 0x00 || - sc->sc_fpstate[1] == 0x28 || - sc->sc_fpstate[1] == 0x60)) - goto out; - } else if (CPU_IS_060) { - if (!(sc->sc_fpstate[3] == 0x00 || - sc->sc_fpstate[3] == 0x60 || - sc->sc_fpstate[3] == 0xe0)) - goto out; - } else - goto out; - - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %0,%%fp0-%%fp1\n\t" - "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" - ".chip 68k" - : /* no outputs */ - : "m" (*sc->sc_fpregs), "m" (*sc->sc_fpcntl)); - } - __asm__ volatile (".chip 68k/68881\n\t" - "frestore %0\n\t" - ".chip 68k" : : "m" (*sc->sc_fpstate)); - err = 0; - -out: - return err; -} - -#define FPCONTEXT_SIZE 216 -#define uc_fpstate uc_filler[0] -#define uc_formatvec uc_filler[FPCONTEXT_SIZE/4] -#define uc_extra uc_filler[FPCONTEXT_SIZE/4+1] - -static inline int rt_restore_fpu_state(struct ucontext __user *uc) -{ - unsigned char fpstate[FPCONTEXT_SIZE]; - int context_size = CPU_IS_060 ? 8 : 0; - fpregset_t fpregs; - int err = 1; - - if (FPU_IS_EMU) { - /* restore fpu control register */ - if (__copy_from_user(current->thread.fpcntl, - uc->uc_mcontext.fpregs.f_fpcntl, 12)) - goto out; - /* restore all other fpu register */ - if (__copy_from_user(current->thread.fp, - uc->uc_mcontext.fpregs.f_fpregs, 96)) - goto out; - return 0; - } - - if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate)) - goto out; - if (CPU_IS_060 ? fpstate[2] : fpstate[0]) { - if (!CPU_IS_060) - context_size = fpstate[1]; - /* Verify the frame format. */ - if (!CPU_IS_060 && (fpstate[0] != fpu_version)) - goto out; - if (CPU_IS_020_OR_030) { - if (m68k_fputype & FPU_68881 && - !(context_size == 0x18 || context_size == 0xb4)) - goto out; - if (m68k_fputype & FPU_68882 && - !(context_size == 0x38 || context_size == 0xd4)) - goto out; - } else if (CPU_IS_040) { - if (!(context_size == 0x00 || - context_size == 0x28 || - context_size == 0x60)) - goto out; - } else if (CPU_IS_060) { - if (!(fpstate[3] == 0x00 || - fpstate[3] == 0x60 || - fpstate[3] == 0xe0)) - goto out; - } else - goto out; - if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs, - sizeof(fpregs))) - goto out; - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %0,%%fp0-%%fp7\n\t" - "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" - ".chip 68k" - : /* no outputs */ - : "m" (*fpregs.f_fpregs), - "m" (*fpregs.f_fpcntl)); - } - if (context_size && - __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1, - context_size)) - goto out; - __asm__ volatile (".chip 68k/68881\n\t" - "frestore %0\n\t" - ".chip 68k" : : "m" (*fpstate)); - err = 0; - -out: - return err; -} - -static int mangle_kernel_stack(struct pt_regs *regs, int formatvec, - void __user *fp) -{ - int fsize = frame_extra_sizes[formatvec >> 12]; - if (fsize < 0) { - /* - * user process trying to return with weird frame format - */ -#ifdef DEBUG - printk("user process returning with weird frame format\n"); -#endif - return 1; - } - if (!fsize) { - regs->format = formatvec >> 12; - regs->vector = formatvec & 0xfff; - } else { - struct switch_stack *sw = (struct switch_stack *)regs - 1; - unsigned long buf[fsize / 2]; /* yes, twice as much */ - - /* that'll make sure that expansion won't crap over data */ - if (copy_from_user(buf + fsize / 4, fp, fsize)) - return 1; - - /* point of no return */ - regs->format = formatvec >> 12; - regs->vector = formatvec & 0xfff; -#define frame_offset (sizeof(struct pt_regs)+sizeof(struct switch_stack)) - __asm__ __volatile__ - (" movel %0,%/a0\n\t" - " subl %1,%/a0\n\t" /* make room on stack */ - " movel %/a0,%/sp\n\t" /* set stack pointer */ - /* move switch_stack and pt_regs */ - "1: movel %0@+,%/a0@+\n\t" - " dbra %2,1b\n\t" - " lea %/sp@(%c3),%/a0\n\t" /* add offset of fmt */ - " lsrl #2,%1\n\t" - " subql #1,%1\n\t" - /* copy to the gap we'd made */ - "2: movel %4@+,%/a0@+\n\t" - " dbra %1,2b\n\t" - " bral ret_from_signal\n" - : /* no outputs, it doesn't ever return */ - : "a" (sw), "d" (fsize), "d" (frame_offset/4-1), - "n" (frame_offset), "a" (buf + fsize/4) - : "a0"); -#undef frame_offset - } - return 0; -} - -static inline int -restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp) -{ - int formatvec; - struct sigcontext context; - int err; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - /* get previous context */ - if (copy_from_user(&context, usc, sizeof(context))) - goto badframe; - - /* restore passed registers */ - regs->d0 = context.sc_d0; - regs->d1 = context.sc_d1; - regs->a0 = context.sc_a0; - regs->a1 = context.sc_a1; - regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff); - regs->pc = context.sc_pc; - regs->orig_d0 = -1; /* disable syscall checks */ - wrusp(context.sc_usp); - formatvec = context.sc_formatvec; - - err = restore_fpu_state(&context); - - if (err || mangle_kernel_stack(regs, formatvec, fp)) - goto badframe; - - return 0; - -badframe: - return 1; -} - -static inline int -rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, - struct ucontext __user *uc) -{ - int temp; - greg_t __user *gregs = uc->uc_mcontext.gregs; - unsigned long usp; - int err; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - err = __get_user(temp, &uc->uc_mcontext.version); - if (temp != MCONTEXT_VERSION) - goto badframe; - /* restore passed registers */ - err |= __get_user(regs->d0, &gregs[0]); - err |= __get_user(regs->d1, &gregs[1]); - err |= __get_user(regs->d2, &gregs[2]); - err |= __get_user(regs->d3, &gregs[3]); - err |= __get_user(regs->d4, &gregs[4]); - err |= __get_user(regs->d5, &gregs[5]); - err |= __get_user(sw->d6, &gregs[6]); - err |= __get_user(sw->d7, &gregs[7]); - err |= __get_user(regs->a0, &gregs[8]); - err |= __get_user(regs->a1, &gregs[9]); - err |= __get_user(regs->a2, &gregs[10]); - err |= __get_user(sw->a3, &gregs[11]); - err |= __get_user(sw->a4, &gregs[12]); - err |= __get_user(sw->a5, &gregs[13]); - err |= __get_user(sw->a6, &gregs[14]); - err |= __get_user(usp, &gregs[15]); - wrusp(usp); - err |= __get_user(regs->pc, &gregs[16]); - err |= __get_user(temp, &gregs[17]); - regs->sr = (regs->sr & 0xff00) | (temp & 0xff); - regs->orig_d0 = -1; /* disable syscall checks */ - err |= __get_user(temp, &uc->uc_formatvec); - - err |= rt_restore_fpu_state(uc); - - if (err || do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT) - goto badframe; - - if (mangle_kernel_stack(regs, temp, &uc->uc_extra)) - goto badframe; - - return 0; - -badframe: - return 1; -} - -asmlinkage int do_sigreturn(unsigned long __unused) -{ - struct switch_stack *sw = (struct switch_stack *) &__unused; - struct pt_regs *regs = (struct pt_regs *) (sw + 1); - unsigned long usp = rdusp(); - struct sigframe __user *frame = (struct sigframe __user *)(usp - 4); - sigset_t set; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - if (__get_user(set.sig[0], &frame->sc.sc_mask) || - (_NSIG_WORDS > 1 && - __copy_from_user(&set.sig[1], &frame->extramask, - sizeof(frame->extramask)))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - current->blocked = set; - recalc_sigpending(); - - if (restore_sigcontext(regs, &frame->sc, frame + 1)) - goto badframe; - return regs->d0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -asmlinkage int do_rt_sigreturn(unsigned long __unused) -{ - struct switch_stack *sw = (struct switch_stack *) &__unused; - struct pt_regs *regs = (struct pt_regs *) (sw + 1); - unsigned long usp = rdusp(); - struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4); - sigset_t set; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - current->blocked = set; - recalc_sigpending(); - - if (rt_restore_ucontext(regs, sw, &frame->uc)) - goto badframe; - return regs->d0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -/* - * Set up a signal frame. - */ - -static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs) -{ - if (FPU_IS_EMU) { - /* save registers */ - memcpy(sc->sc_fpcntl, current->thread.fpcntl, 12); - memcpy(sc->sc_fpregs, current->thread.fp, 24); - return; - } - - __asm__ volatile (".chip 68k/68881\n\t" - "fsave %0\n\t" - ".chip 68k" - : : "m" (*sc->sc_fpstate) : "memory"); - - if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) { - fpu_version = sc->sc_fpstate[0]; - if (CPU_IS_020_OR_030 && - regs->vector >= (VEC_FPBRUC * 4) && - regs->vector <= (VEC_FPNAN * 4)) { - /* Clear pending exception in 68882 idle frame */ - if (*(unsigned short *) sc->sc_fpstate == 0x1f38) - sc->sc_fpstate[0x38] |= 1 << 3; - } - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %%fp0-%%fp1,%0\n\t" - "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" - ".chip 68k" - : "=m" (*sc->sc_fpregs), - "=m" (*sc->sc_fpcntl) - : /* no inputs */ - : "memory"); - } -} - -static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs) -{ - unsigned char fpstate[FPCONTEXT_SIZE]; - int context_size = CPU_IS_060 ? 8 : 0; - int err = 0; - - if (FPU_IS_EMU) { - /* save fpu control register */ - err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpcntl, - current->thread.fpcntl, 12); - /* save all other fpu register */ - err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs, - current->thread.fp, 96); - return err; - } - - __asm__ volatile (".chip 68k/68881\n\t" - "fsave %0\n\t" - ".chip 68k" - : : "m" (*fpstate) : "memory"); - - err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate); - if (CPU_IS_060 ? fpstate[2] : fpstate[0]) { - fpregset_t fpregs; - if (!CPU_IS_060) - context_size = fpstate[1]; - fpu_version = fpstate[0]; - if (CPU_IS_020_OR_030 && - regs->vector >= (VEC_FPBRUC * 4) && - regs->vector <= (VEC_FPNAN * 4)) { - /* Clear pending exception in 68882 idle frame */ - if (*(unsigned short *) fpstate == 0x1f38) - fpstate[0x38] |= 1 << 3; - } - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %%fp0-%%fp7,%0\n\t" - "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" - ".chip 68k" - : "=m" (*fpregs.f_fpregs), - "=m" (*fpregs.f_fpcntl) - : /* no inputs */ - : "memory"); - err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs, - sizeof(fpregs)); - } - if (context_size) - err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4, - context_size); - return err; -} - -static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, - unsigned long mask) -{ - sc->sc_mask = mask; - sc->sc_usp = rdusp(); - sc->sc_d0 = regs->d0; - sc->sc_d1 = regs->d1; - sc->sc_a0 = regs->a0; - sc->sc_a1 = regs->a1; - sc->sc_sr = regs->sr; - sc->sc_pc = regs->pc; - sc->sc_formatvec = regs->format << 12 | regs->vector; - save_fpu_state(sc, regs); -} - -static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs) -{ - struct switch_stack *sw = (struct switch_stack *)regs - 1; - greg_t __user *gregs = uc->uc_mcontext.gregs; - int err = 0; - - err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version); - err |= __put_user(regs->d0, &gregs[0]); - err |= __put_user(regs->d1, &gregs[1]); - err |= __put_user(regs->d2, &gregs[2]); - err |= __put_user(regs->d3, &gregs[3]); - err |= __put_user(regs->d4, &gregs[4]); - err |= __put_user(regs->d5, &gregs[5]); - err |= __put_user(sw->d6, &gregs[6]); - err |= __put_user(sw->d7, &gregs[7]); - err |= __put_user(regs->a0, &gregs[8]); - err |= __put_user(regs->a1, &gregs[9]); - err |= __put_user(regs->a2, &gregs[10]); - err |= __put_user(sw->a3, &gregs[11]); - err |= __put_user(sw->a4, &gregs[12]); - err |= __put_user(sw->a5, &gregs[13]); - err |= __put_user(sw->a6, &gregs[14]); - err |= __put_user(rdusp(), &gregs[15]); - err |= __put_user(regs->pc, &gregs[16]); - err |= __put_user(regs->sr, &gregs[17]); - err |= __put_user((regs->format << 12) | regs->vector, &uc->uc_formatvec); - err |= rt_save_fpu_state(uc, regs); - return err; -} - -static inline void push_cache (unsigned long vaddr) -{ - /* - * Using the old cache_push_v() was really a big waste. - * - * What we are trying to do is to flush 8 bytes to ram. - * Flushing 2 cache lines of 16 bytes is much cheaper than - * flushing 1 or 2 pages, as previously done in - * cache_push_v(). - * Jes - */ - if (CPU_IS_040) { - unsigned long temp; - - __asm__ __volatile__ (".chip 68040\n\t" - "nop\n\t" - "ptestr (%1)\n\t" - "movec %%mmusr,%0\n\t" - ".chip 68k" - : "=r" (temp) - : "a" (vaddr)); - - temp &= PAGE_MASK; - temp |= vaddr & ~PAGE_MASK; - - __asm__ __volatile__ (".chip 68040\n\t" - "nop\n\t" - "cpushl %%bc,(%0)\n\t" - ".chip 68k" - : : "a" (temp)); - } - else if (CPU_IS_060) { - unsigned long temp; - __asm__ __volatile__ (".chip 68060\n\t" - "plpar (%0)\n\t" - ".chip 68k" - : "=a" (temp) - : "0" (vaddr)); - __asm__ __volatile__ (".chip 68060\n\t" - "cpushl %%bc,(%0)\n\t" - ".chip 68k" - : : "a" (temp)); - } - else { - /* - * 68030/68020 have no writeback cache; - * still need to clear icache. - * Note that vaddr is guaranteed to be long word aligned. - */ - unsigned long temp; - asm volatile ("movec %%cacr,%0" : "=r" (temp)); - temp += 4; - asm volatile ("movec %0,%%caar\n\t" - "movec %1,%%cacr" - : : "r" (vaddr), "r" (temp)); - asm volatile ("movec %0,%%caar\n\t" - "movec %1,%%cacr" - : : "r" (vaddr + 4), "r" (temp)); - } -} - -static inline void __user * -get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) -{ - unsigned long usp; - - /* Default to using normal stack. */ - usp = rdusp(); - - /* This is the X/Open sanctioned signal stack switching. */ - if (ka->sa.sa_flags & SA_ONSTACK) { - if (!sas_ss_flags(usp)) - usp = current->sas_ss_sp + current->sas_ss_size; - } - return (void __user *)((usp - frame_size) & -8UL); -} - -static int setup_frame (int sig, struct k_sigaction *ka, - sigset_t *set, struct pt_regs *regs) -{ - struct sigframe __user *frame; - int fsize = frame_extra_sizes[regs->format]; - struct sigcontext context; - int err = 0; - - if (fsize < 0) { -#ifdef DEBUG - printk ("setup_frame: Unknown frame format %#x\n", - regs->format); -#endif - goto give_sigsegv; - } - - frame = get_sigframe(ka, regs, sizeof(*frame) + fsize); - - if (fsize) - err |= copy_to_user (frame + 1, regs + 1, fsize); - - err |= __put_user((current_thread_info()->exec_domain - && current_thread_info()->exec_domain->signal_invmap - && sig < 32 - ? current_thread_info()->exec_domain->signal_invmap[sig] - : sig), - &frame->sig); - - err |= __put_user(regs->vector, &frame->code); - err |= __put_user(&frame->sc, &frame->psc); - - if (_NSIG_WORDS > 1) - err |= copy_to_user(frame->extramask, &set->sig[1], - sizeof(frame->extramask)); - - setup_sigcontext(&context, regs, set->sig[0]); - err |= copy_to_user (&frame->sc, &context, sizeof(context)); - - /* Set up to return from userspace. */ - err |= __put_user(frame->retcode, &frame->pretcode); - /* moveq #,d0; trap #0 */ - err |= __put_user(0x70004e40 + (__NR_sigreturn << 16), - (long __user *)(frame->retcode)); - - if (err) - goto give_sigsegv; - - push_cache ((unsigned long) &frame->retcode); - - /* - * Set up registers for signal handler. All the state we are about - * to destroy is successfully copied to sigframe. - */ - wrusp ((unsigned long) frame); - regs->pc = (unsigned long) ka->sa.sa_handler; - - /* - * This is subtle; if we build more than one sigframe, all but the - * first one will see frame format 0 and have fsize == 0, so we won't - * screw stkadj. - */ - if (fsize) - regs->stkadj = fsize; - - /* Prepare to skip over the extra stuff in the exception frame. */ - if (regs->stkadj) { - struct pt_regs *tregs = - (struct pt_regs *)((ulong)regs + regs->stkadj); -#ifdef DEBUG - printk("Performing stackadjust=%04x\n", regs->stkadj); -#endif - /* This must be copied with decreasing addresses to - handle overlaps. */ - tregs->vector = 0; - tregs->format = 0; - tregs->pc = regs->pc; - tregs->sr = regs->sr; - } - return 0; - -give_sigsegv: - force_sigsegv(sig, current); - return err; -} - -static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs) -{ - struct rt_sigframe __user *frame; - int fsize = frame_extra_sizes[regs->format]; - int err = 0; - - if (fsize < 0) { -#ifdef DEBUG - printk ("setup_frame: Unknown frame format %#x\n", - regs->format); -#endif - goto give_sigsegv; - } - - frame = get_sigframe(ka, regs, sizeof(*frame)); - - if (fsize) - err |= copy_to_user (&frame->uc.uc_extra, regs + 1, fsize); - - err |= __put_user((current_thread_info()->exec_domain - && current_thread_info()->exec_domain->signal_invmap - && sig < 32 - ? current_thread_info()->exec_domain->signal_invmap[sig] - : sig), - &frame->sig); - err |= __put_user(&frame->info, &frame->pinfo); - err |= __put_user(&frame->uc, &frame->puc); - err |= copy_siginfo_to_user(&frame->info, info); - - /* Create the ucontext. */ - err |= __put_user(0, &frame->uc.uc_flags); - err |= __put_user(NULL, &frame->uc.uc_link); - err |= __put_user((void __user *)current->sas_ss_sp, - &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(rdusp()), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); - err |= rt_setup_ucontext(&frame->uc, regs); - err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set)); - - /* Set up to return from userspace. */ - err |= __put_user(frame->retcode, &frame->pretcode); -#ifdef __mcoldfire__ - /* movel #__NR_rt_sigreturn,d0; trap #0 */ - err |= __put_user(0x203c0000, (long __user *)(frame->retcode + 0)); - err |= __put_user(0x00004e40 + (__NR_rt_sigreturn << 16), - (long __user *)(frame->retcode + 4)); +#ifdef CONFIG_MMU +#include "signal_mm.c" #else - /* moveq #,d0; notb d0; trap #0 */ - err |= __put_user(0x70004600 + ((__NR_rt_sigreturn ^ 0xff) << 16), - (long __user *)(frame->retcode + 0)); - err |= __put_user(0x4e40, (short __user *)(frame->retcode + 4)); -#endif - - if (err) - goto give_sigsegv; - - push_cache ((unsigned long) &frame->retcode); - - /* - * Set up registers for signal handler. All the state we are about - * to destroy is successfully copied to sigframe. - */ - wrusp ((unsigned long) frame); - regs->pc = (unsigned long) ka->sa.sa_handler; - - /* - * This is subtle; if we build more than one sigframe, all but the - * first one will see frame format 0 and have fsize == 0, so we won't - * screw stkadj. - */ - if (fsize) - regs->stkadj = fsize; - - /* Prepare to skip over the extra stuff in the exception frame. */ - if (regs->stkadj) { - struct pt_regs *tregs = - (struct pt_regs *)((ulong)regs + regs->stkadj); -#ifdef DEBUG - printk("Performing stackadjust=%04x\n", regs->stkadj); +#include "signal_no.c" #endif - /* This must be copied with decreasing addresses to - handle overlaps. */ - tregs->vector = 0; - tregs->format = 0; - tregs->pc = regs->pc; - tregs->sr = regs->sr; - } - return 0; - -give_sigsegv: - force_sigsegv(sig, current); - return err; -} - -static inline void -handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) -{ - switch (regs->d0) { - case -ERESTARTNOHAND: - if (!has_handler) - goto do_restart; - regs->d0 = -EINTR; - break; - - case -ERESTART_RESTARTBLOCK: - if (!has_handler) { - regs->d0 = __NR_restart_syscall; - regs->pc -= 2; - break; - } - regs->d0 = -EINTR; - break; - - case -ERESTARTSYS: - if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { - regs->d0 = -EINTR; - break; - } - /* fallthrough */ - case -ERESTARTNOINTR: - do_restart: - regs->d0 = regs->orig_d0; - regs->pc -= 2; - break; - } -} - -void ptrace_signal_deliver(struct pt_regs *regs, void *cookie) -{ - if (regs->orig_d0 < 0) - return; - switch (regs->d0) { - case -ERESTARTNOHAND: - case -ERESTARTSYS: - case -ERESTARTNOINTR: - regs->d0 = regs->orig_d0; - regs->orig_d0 = -1; - regs->pc -= 2; - break; - } -} - -/* - * OK, we're invoking a handler - */ -static void -handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *oldset, struct pt_regs *regs) -{ - int err; - /* are we from a system call? */ - if (regs->orig_d0 >= 0) - /* If so, check system call restarting.. */ - handle_restart(regs, ka, 1); - - /* set up the stack frame */ - if (ka->sa.sa_flags & SA_SIGINFO) - err = setup_rt_frame(sig, ka, info, oldset, regs); - else - err = setup_frame(sig, ka, oldset, regs); - - if (err) - return; - - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked,sig); - recalc_sigpending(); - - if (test_thread_flag(TIF_DELAYED_TRACE)) { - regs->sr &= ~0x8000; - send_sig(SIGTRAP, current, 1); - } - - clear_thread_flag(TIF_RESTORE_SIGMASK); -} - -/* - * Note that 'init' is a special process: it doesn't get signals it doesn't - * want to handle. Thus you cannot kill init even with a SIGKILL even by - * mistake. - */ -asmlinkage void do_signal(struct pt_regs *regs) -{ - siginfo_t info; - struct k_sigaction ka; - int signr; - sigset_t *oldset; - - current->thread.esp0 = (unsigned long) regs; - - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - oldset = ¤t->saved_sigmask; - else - oldset = ¤t->blocked; - - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - if (signr > 0) { - /* Whee! Actually deliver the signal. */ - handle_signal(signr, &ka, &info, oldset, regs); - return; - } - - /* Did we come from a system call? */ - if (regs->orig_d0 >= 0) - /* Restart the system call - no handlers present */ - handle_restart(regs, NULL, 0); - - /* If there's no signal to deliver, we just restore the saved mask. */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) { - clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } -} diff --git a/arch/m68k/kernel/signal_mm.c b/arch/m68k/kernel/signal_mm.c new file mode 100644 index 000000000000..a0afc239304e --- /dev/null +++ b/arch/m68k/kernel/signal_mm.c @@ -0,0 +1,1017 @@ +/* + * linux/arch/m68k/kernel/signal.c + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +/* + * Linux/m68k support by Hamish Macdonald + * + * 68060 fixes by Jesper Skov + * + * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab + * + * mathemu support by Roman Zippel + * (Note: fpstate in the signal context is completely ignored for the emulator + * and the internal floating point format is put on stack) + */ + +/* + * ++roman (07/09/96): implemented signal stacks (specially for tosemu on + * Atari :-) Current limitation: Only one sigstack can be active at one time. + * If a second signal with SA_ONSTACK set arrives while working on a sigstack, + * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested + * signal handlers! + */ + +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/kernel.h> +#include <linux/signal.h> +#include <linux/syscalls.h> +#include <linux/errno.h> +#include <linux/wait.h> +#include <linux/ptrace.h> +#include <linux/unistd.h> +#include <linux/stddef.h> +#include <linux/highuid.h> +#include <linux/personality.h> +#include <linux/tty.h> +#include <linux/binfmts.h> +#include <linux/module.h> + +#include <asm/setup.h> +#include <asm/uaccess.h> +#include <asm/pgtable.h> +#include <asm/traps.h> +#include <asm/ucontext.h> + +#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) + +static const int frame_extra_sizes[16] = { + [1] = -1, /* sizeof(((struct frame *)0)->un.fmt1), */ + [2] = sizeof(((struct frame *)0)->un.fmt2), + [3] = sizeof(((struct frame *)0)->un.fmt3), + [4] = sizeof(((struct frame *)0)->un.fmt4), + [5] = -1, /* sizeof(((struct frame *)0)->un.fmt5), */ + [6] = -1, /* sizeof(((struct frame *)0)->un.fmt6), */ + [7] = sizeof(((struct frame *)0)->un.fmt7), + [8] = -1, /* sizeof(((struct frame *)0)->un.fmt8), */ + [9] = sizeof(((struct frame *)0)->un.fmt9), + [10] = sizeof(((struct frame *)0)->un.fmta), + [11] = sizeof(((struct frame *)0)->un.fmtb), + [12] = -1, /* sizeof(((struct frame *)0)->un.fmtc), */ + [13] = -1, /* sizeof(((struct frame *)0)->un.fmtd), */ + [14] = -1, /* sizeof(((struct frame *)0)->un.fmte), */ + [15] = -1, /* sizeof(((struct frame *)0)->un.fmtf), */ +}; + +int handle_kernel_fault(struct pt_regs *regs) +{ + const struct exception_table_entry *fixup; + struct pt_regs *tregs; + + /* Are we prepared to handle this kernel fault? */ + fixup = search_exception_tables(regs->pc); + if (!fixup) + return 0; + + /* Create a new four word stack frame, discarding the old one. */ + regs->stkadj = frame_extra_sizes[regs->format]; + tregs = (struct pt_regs *)((long)regs + regs->stkadj); + tregs->vector = regs->vector; + tregs->format = 0; + tregs->pc = fixup->fixup; + tregs->sr = regs->sr; + + return 1; +} + +/* + * Atomically swap in the new signal mask, and wait for a signal. + */ +asmlinkage int +sys_sigsuspend(int unused0, int unused1, old_sigset_t mask) +{ + mask &= _BLOCKABLE; + spin_lock_irq(¤t->sighand->siglock); + current->saved_sigmask = current->blocked; + siginitset(¤t->blocked, mask); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + current->state = TASK_INTERRUPTIBLE; + schedule(); + set_restore_sigmask(); + + return -ERESTARTNOHAND; +} + +asmlinkage int +sys_sigaction(int sig, const struct old_sigaction __user *act, + struct old_sigaction __user *oact) +{ + struct k_sigaction new_ka, old_ka; + int ret; + + if (act) { + old_sigset_t mask; + if (!access_ok(VERIFY_READ, act, sizeof(*act)) || + __get_user(new_ka.sa.sa_handler, &act->sa_handler) || + __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) || + __get_user(new_ka.sa.sa_flags, &act->sa_flags) || + __get_user(mask, &act->sa_mask)) + return -EFAULT; + siginitset(&new_ka.sa.sa_mask, mask); + } + + ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); + + if (!ret && oact) { + if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || + __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || + __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) || + __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || + __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) + return -EFAULT; + } + + return ret; +} + +asmlinkage int +sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) +{ + return do_sigaltstack(uss, uoss, rdusp()); +} + + +/* + * Do a signal return; undo the signal stack. + * + * Keep the return code on the stack quadword aligned! + * That makes the cache flush below easier. + */ + +struct sigframe +{ + char __user *pretcode; + int sig; + int code; + struct sigcontext __user *psc; + char retcode[8]; + unsigned long extramask[_NSIG_WORDS-1]; + struct sigcontext sc; +}; + +struct rt_sigframe +{ + char __user *pretcode; + int sig; + struct siginfo __user *pinfo; + void __user *puc; + char retcode[8]; + struct siginfo info; + struct ucontext uc; +}; + + +static unsigned char fpu_version; /* version number of fpu, set by setup_frame */ + +static inline int restore_fpu_state(struct sigcontext *sc) +{ + int err = 1; + + if (FPU_IS_EMU) { + /* restore registers */ + memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12); + memcpy(current->thread.fp, sc->sc_fpregs, 24); + return 0; + } + + if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) { + /* Verify the frame format. */ + if (!CPU_IS_060 && (sc->sc_fpstate[0] != fpu_version)) + goto out; + if (CPU_IS_020_OR_030) { + if (m68k_fputype & FPU_68881 && + !(sc->sc_fpstate[1] == 0x18 || sc->sc_fpstate[1] == 0xb4)) + goto out; + if (m68k_fputype & FPU_68882 && + !(sc->sc_fpstate[1] == 0x38 || sc->sc_fpstate[1] == 0xd4)) + goto out; + } else if (CPU_IS_040) { + if (!(sc->sc_fpstate[1] == 0x00 || + sc->sc_fpstate[1] == 0x28 || + sc->sc_fpstate[1] == 0x60)) + goto out; + } else if (CPU_IS_060) { + if (!(sc->sc_fpstate[3] == 0x00 || + sc->sc_fpstate[3] == 0x60 || + sc->sc_fpstate[3] == 0xe0)) + goto out; + } else + goto out; + + __asm__ volatile (".chip 68k/68881\n\t" + "fmovemx %0,%%fp0-%%fp1\n\t" + "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" + ".chip 68k" + : /* no outputs */ + : "m" (*sc->sc_fpregs), "m" (*sc->sc_fpcntl)); + } + __asm__ volatile (".chip 68k/68881\n\t" + "frestore %0\n\t" + ".chip 68k" : : "m" (*sc->sc_fpstate)); + err = 0; + +out: + return err; +} + +#define FPCONTEXT_SIZE 216 +#define uc_fpstate uc_filler[0] +#define uc_formatvec uc_filler[FPCONTEXT_SIZE/4] +#define uc_extra uc_filler[FPCONTEXT_SIZE/4+1] + +static inline int rt_restore_fpu_state(struct ucontext __user *uc) +{ + unsigned char fpstate[FPCONTEXT_SIZE]; + int context_size = CPU_IS_060 ? 8 : 0; + fpregset_t fpregs; + int err = 1; + + if (FPU_IS_EMU) { + /* restore fpu control register */ + if (__copy_from_user(current->thread.fpcntl, + uc->uc_mcontext.fpregs.f_fpcntl, 12)) + goto out; + /* restore all other fpu register */ + if (__copy_from_user(current->thread.fp, + uc->uc_mcontext.fpregs.f_fpregs, 96)) + goto out; + return 0; + } + + if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate)) + goto out; + if (CPU_IS_060 ? fpstate[2] : fpstate[0]) { + if (!CPU_IS_060) + context_size = fpstate[1]; + /* Verify the frame format. */ + if (!CPU_IS_060 && (fpstate[0] != fpu_version)) + goto out; + if (CPU_IS_020_OR_030) { + if (m68k_fputype & FPU_68881 && + !(context_size == 0x18 || context_size == 0xb4)) + goto out; + if (m68k_fputype & FPU_68882 && + !(context_size == 0x38 || context_size == 0xd4)) + goto out; + } else if (CPU_IS_040) { + if (!(context_size == 0x00 || + context_size == 0x28 || + context_size == 0x60)) + goto out; + } else if (CPU_IS_060) { + if (!(fpstate[3] == 0x00 || + fpstate[3] == 0x60 || + fpstate[3] == 0xe0)) + goto out; + } else + goto out; + if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs, + sizeof(fpregs))) + goto out; + __asm__ volatile (".chip 68k/68881\n\t" + "fmovemx %0,%%fp0-%%fp7\n\t" + "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" + ".chip 68k" + : /* no outputs */ + : "m" (*fpregs.f_fpregs), + "m" (*fpregs.f_fpcntl)); + } + if (context_size && + __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1, + context_size)) + goto out; + __asm__ volatile (".chip 68k/68881\n\t" + "frestore %0\n\t" + ".chip 68k" : : "m" (*fpstate)); + err = 0; + +out: + return err; +} + +static int mangle_kernel_stack(struct pt_regs *regs, int formatvec, + void __user *fp) +{ + int fsize = frame_extra_sizes[formatvec >> 12]; + if (fsize < 0) { + /* + * user process trying to return with weird frame format + */ +#ifdef DEBUG + printk("user process returning with weird frame format\n"); +#endif + return 1; + } + if (!fsize) { + regs->format = formatvec >> 12; + regs->vector = formatvec & 0xfff; + } else { + struct switch_stack *sw = (struct switch_stack *)regs - 1; + unsigned long buf[fsize / 2]; /* yes, twice as much */ + + /* that'll make sure that expansion won't crap over data */ + if (copy_from_user(buf + fsize / 4, fp, fsize)) + return 1; + + /* point of no return */ + regs->format = formatvec >> 12; + regs->vector = formatvec & 0xfff; +#define frame_offset (sizeof(struct pt_regs)+sizeof(struct switch_stack)) + __asm__ __volatile__ + (" movel %0,%/a0\n\t" + " subl %1,%/a0\n\t" /* make room on stack */ + " movel %/a0,%/sp\n\t" /* set stack pointer */ + /* move switch_stack and pt_regs */ + "1: movel %0@+,%/a0@+\n\t" + " dbra %2,1b\n\t" + " lea %/sp@(%c3),%/a0\n\t" /* add offset of fmt */ + " lsrl #2,%1\n\t" + " subql #1,%1\n\t" + /* copy to the gap we'd made */ + "2: movel %4@+,%/a0@+\n\t" + " dbra %1,2b\n\t" + " bral ret_from_signal\n" + : /* no outputs, it doesn't ever return */ + : "a" (sw), "d" (fsize), "d" (frame_offset/4-1), + "n" (frame_offset), "a" (buf + fsize/4) + : "a0"); +#undef frame_offset + } + return 0; +} + +static inline int +restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp) +{ + int formatvec; + struct sigcontext context; + int err; + + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + + /* get previous context */ + if (copy_from_user(&context, usc, sizeof(context))) + goto badframe; + + /* restore passed registers */ + regs->d0 = context.sc_d0; + regs->d1 = context.sc_d1; + regs->a0 = context.sc_a0; + regs->a1 = context.sc_a1; + regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff); + regs->pc = context.sc_pc; + regs->orig_d0 = -1; /* disable syscall checks */ + wrusp(context.sc_usp); + formatvec = context.sc_formatvec; + + err = restore_fpu_state(&context); + + if (err || mangle_kernel_stack(regs, formatvec, fp)) + goto badframe; + + return 0; + +badframe: + return 1; +} + +static inline int +rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, + struct ucontext __user *uc) +{ + int temp; + greg_t __user *gregs = uc->uc_mcontext.gregs; + unsigned long usp; + int err; + + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + + err = __get_user(temp, &uc->uc_mcontext.version); + if (temp != MCONTEXT_VERSION) + goto badframe; + /* restore passed registers */ + err |= __get_user(regs->d0, &gregs[0]); + err |= __get_user(regs->d1, &gregs[1]); + err |= __get_user(regs->d2, &gregs[2]); + err |= __get_user(regs->d3, &gregs[3]); + err |= __get_user(regs->d4, &gregs[4]); + err |= __get_user(regs->d5, &gregs[5]); + err |= __get_user(sw->d6, &gregs[6]); + err |= __get_user(sw->d7, &gregs[7]); + err |= __get_user(regs->a0, &gregs[8]); + err |= __get_user(regs->a1, &gregs[9]); + err |= __get_user(regs->a2, &gregs[10]); + err |= __get_user(sw->a3, &gregs[11]); + err |= __get_user(sw->a4, &gregs[12]); + err |= __get_user(sw->a5, &gregs[13]); + err |= __get_user(sw->a6, &gregs[14]); + err |= __get_user(usp, &gregs[15]); + wrusp(usp); + err |= __get_user(regs->pc, &gregs[16]); + err |= __get_user(temp, &gregs[17]); + regs->sr = (regs->sr & 0xff00) | (temp & 0xff); + regs->orig_d0 = -1; /* disable syscall checks */ + err |= __get_user(temp, &uc->uc_formatvec); + + err |= rt_restore_fpu_state(uc); + + if (err || do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT) + goto badframe; + + if (mangle_kernel_stack(regs, temp, &uc->uc_extra)) + goto badframe; + + return 0; + +badframe: + return 1; +} + +asmlinkage int do_sigreturn(unsigned long __unused) +{ + struct switch_stack *sw = (struct switch_stack *) &__unused; + struct pt_regs *regs = (struct pt_regs *) (sw + 1); + unsigned long usp = rdusp(); + struct sigframe __user *frame = (struct sigframe __user *)(usp - 4); + sigset_t set; + + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) + goto badframe; + if (__get_user(set.sig[0], &frame->sc.sc_mask) || + (_NSIG_WORDS > 1 && + __copy_from_user(&set.sig[1], &frame->extramask, + sizeof(frame->extramask)))) + goto badframe; + + sigdelsetmask(&set, ~_BLOCKABLE); + current->blocked = set; + recalc_sigpending(); + + if (restore_sigcontext(regs, &frame->sc, frame + 1)) + goto badframe; + return regs->d0; + +badframe: + force_sig(SIGSEGV, current); + return 0; +} + +asmlinkage int do_rt_sigreturn(unsigned long __unused) +{ + struct switch_stack *sw = (struct switch_stack *) &__unused; + struct pt_regs *regs = (struct pt_regs *) (sw + 1); + unsigned long usp = rdusp(); + struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4); + sigset_t set; + + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) + goto badframe; + if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) + goto badframe; + + sigdelsetmask(&set, ~_BLOCKABLE); + current->blocked = set; + recalc_sigpending(); + + if (rt_restore_ucontext(regs, sw, &frame->uc)) + goto badframe; + return regs->d0; + +badframe: + force_sig(SIGSEGV, current); + return 0; +} + +/* + * Set up a signal frame. + */ + +static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs) +{ + if (FPU_IS_EMU) { + /* save registers */ + memcpy(sc->sc_fpcntl, current->thread.fpcntl, 12); + memcpy(sc->sc_fpregs, current->thread.fp, 24); + return; + } + + __asm__ volatile (".chip 68k/68881\n\t" + "fsave %0\n\t" + ".chip 68k" + : : "m" (*sc->sc_fpstate) : "memory"); + + if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) { + fpu_version = sc->sc_fpstate[0]; + if (CPU_IS_020_OR_030 && + regs->vector >= (VEC_FPBRUC * 4) && + regs->vector <= (VEC_FPNAN * 4)) { + /* Clear pending exception in 68882 idle frame */ + if (*(unsigned short *) sc->sc_fpstate == 0x1f38) + sc->sc_fpstate[0x38] |= 1 << 3; + } + __asm__ volatile (".chip 68k/68881\n\t" + "fmovemx %%fp0-%%fp1,%0\n\t" + "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" + ".chip 68k" + : "=m" (*sc->sc_fpregs), + "=m" (*sc->sc_fpcntl) + : /* no inputs */ + : "memory"); + } +} + +static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs) +{ + unsigned char fpstate[FPCONTEXT_SIZE]; + int context_size = CPU_IS_060 ? 8 : 0; + int err = 0; + + if (FPU_IS_EMU) { + /* save fpu control register */ + err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpcntl, + current->thread.fpcntl, 12); + /* save all other fpu register */ + err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs, + current->thread.fp, 96); + return err; + } + + __asm__ volatile (".chip 68k/68881\n\t" + "fsave %0\n\t" + ".chip 68k" + : : "m" (*fpstate) : "memory"); + + err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate); + if (CPU_IS_060 ? fpstate[2] : fpstate[0]) { + fpregset_t fpregs; + if (!CPU_IS_060) + context_size = fpstate[1]; + fpu_version = fpstate[0]; + if (CPU_IS_020_OR_030 && + regs->vector >= (VEC_FPBRUC * 4) && + regs->vector <= (VEC_FPNAN * 4)) { + /* Clear pending exception in 68882 idle frame */ + if (*(unsigned short *) fpstate == 0x1f38) + fpstate[0x38] |= 1 << 3; + } + __asm__ volatile (".chip 68k/68881\n\t" + "fmovemx %%fp0-%%fp7,%0\n\t" + "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" + ".chip 68k" + : "=m" (*fpregs.f_fpregs), + "=m" (*fpregs.f_fpcntl) + : /* no inputs */ + : "memory"); + err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs, + sizeof(fpregs)); + } + if (context_size) + err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4, + context_size); + return err; +} + +static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, + unsigned long mask) +{ + sc->sc_mask = mask; + sc->sc_usp = rdusp(); + sc->sc_d0 = regs->d0; + sc->sc_d1 = regs->d1; + sc->sc_a0 = regs->a0; + sc->sc_a1 = regs->a1; + sc->sc_sr = regs->sr; + sc->sc_pc = regs->pc; + sc->sc_formatvec = regs->format << 12 | regs->vector; + save_fpu_state(sc, regs); +} + +static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs) +{ + struct switch_stack *sw = (struct switch_stack *)regs - 1; + greg_t __user *gregs = uc->uc_mcontext.gregs; + int err = 0; + + err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version); + err |= __put_user(regs->d0, &gregs[0]); + err |= __put_user(regs->d1, &gregs[1]); + err |= __put_user(regs->d2, &gregs[2]); + err |= __put_user(regs->d3, &gregs[3]); + err |= __put_user(regs->d4, &gregs[4]); + err |= __put_user(regs->d5, &gregs[5]); + err |= __put_user(sw->d6, &gregs[6]); + err |= __put_user(sw->d7, &gregs[7]); + err |= __put_user(regs->a0, &gregs[8]); + err |= __put_user(regs->a1, &gregs[9]); + err |= __put_user(regs->a2, &gregs[10]); + err |= __put_user(sw->a3, &gregs[11]); + err |= __put_user(sw->a4, &gregs[12]); + err |= __put_user(sw->a5, &gregs[13]); + err |= __put_user(sw->a6, &gregs[14]); + err |= __put_user(rdusp(), &gregs[15]); + err |= __put_user(regs->pc, &gregs[16]); + err |= __put_user(regs->sr, &gregs[17]); + err |= __put_user((regs->format << 12) | regs->vector, &uc->uc_formatvec); + err |= rt_save_fpu_state(uc, regs); + return err; +} + +static inline void push_cache (unsigned long vaddr) +{ + /* + * Using the old cache_push_v() was really a big waste. + * + * What we are trying to do is to flush 8 bytes to ram. + * Flushing 2 cache lines of 16 bytes is much cheaper than + * flushing 1 or 2 pages, as previously done in + * cache_push_v(). + * Jes + */ + if (CPU_IS_040) { + unsigned long temp; + + __asm__ __volatile__ (".chip 68040\n\t" + "nop\n\t" + "ptestr (%1)\n\t" + "movec %%mmusr,%0\n\t" + ".chip 68k" + : "=r" (temp) + : "a" (vaddr)); + + temp &= PAGE_MASK; + temp |= vaddr & ~PAGE_MASK; + + __asm__ __volatile__ (".chip 68040\n\t" + "nop\n\t" + "cpushl %%bc,(%0)\n\t" + ".chip 68k" + : : "a" (temp)); + } + else if (CPU_IS_060) { + unsigned long temp; + __asm__ __volatile__ (".chip 68060\n\t" + "plpar (%0)\n\t" + ".chip 68k" + : "=a" (temp) + : "0" (vaddr)); + __asm__ __volatile__ (".chip 68060\n\t" + "cpushl %%bc,(%0)\n\t" + ".chip 68k" + : : "a" (temp)); + } + else { + /* + * 68030/68020 have no writeback cache; + * still need to clear icache. + * Note that vaddr is guaranteed to be long word aligned. + */ + unsigned long temp; + asm volatile ("movec %%cacr,%0" : "=r" (temp)); + temp += 4; + asm volatile ("movec %0,%%caar\n\t" + "movec %1,%%cacr" + : : "r" (vaddr), "r" (temp)); + asm volatile ("movec %0,%%caar\n\t" + "movec %1,%%cacr" + : : "r" (vaddr + 4), "r" (temp)); + } +} + +static inline void __user * +get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) +{ + unsigned long usp; + + /* Default to using normal stack. */ + usp = rdusp(); + + /* This is the X/Open sanctioned signal stack switching. */ + if (ka->sa.sa_flags & SA_ONSTACK) { + if (!sas_ss_flags(usp)) + usp = current->sas_ss_sp + current->sas_ss_size; + } + return (void __user *)((usp - frame_size) & -8UL); +} + +static int setup_frame (int sig, struct k_sigaction *ka, + sigset_t *set, struct pt_regs *regs) +{ + struct sigframe __user *frame; + int fsize = frame_extra_sizes[regs->format]; + struct sigcontext context; + int err = 0; + + if (fsize < 0) { +#ifdef DEBUG + printk ("setup_frame: Unknown frame format %#x\n", + regs->format); +#endif + goto give_sigsegv; + } + + frame = get_sigframe(ka, regs, sizeof(*frame) + fsize); + + if (fsize) + err |= copy_to_user (frame + 1, regs + 1, fsize); + + err |= __put_user((current_thread_info()->exec_domain + && current_thread_info()->exec_domain->signal_invmap + && sig < 32 + ? current_thread_info()->exec_domain->signal_invmap[sig] + : sig), + &frame->sig); + + err |= __put_user(regs->vector, &frame->code); + err |= __put_user(&frame->sc, &frame->psc); + + if (_NSIG_WORDS > 1) + err |= copy_to_user(frame->extramask, &set->sig[1], + sizeof(frame->extramask)); + + setup_sigcontext(&context, regs, set->sig[0]); + err |= copy_to_user (&frame->sc, &context, sizeof(context)); + + /* Set up to return from userspace. */ + err |= __put_user(frame->retcode, &frame->pretcode); + /* moveq #,d0; trap #0 */ + err |= __put_user(0x70004e40 + (__NR_sigreturn << 16), + (long __user *)(frame->retcode)); + + if (err) + goto give_sigsegv; + + push_cache ((unsigned long) &frame->retcode); + + /* + * Set up registers for signal handler. All the state we are about + * to destroy is successfully copied to sigframe. + */ + wrusp ((unsigned long) frame); + regs->pc = (unsigned long) ka->sa.sa_handler; + + /* + * This is subtle; if we build more than one sigframe, all but the + * first one will see frame format 0 and have fsize == 0, so we won't + * screw stkadj. + */ + if (fsize) + regs->stkadj = fsize; + + /* Prepare to skip over the extra stuff in the exception frame. */ + if (regs->stkadj) { + struct pt_regs *tregs = + (struct pt_regs *)((ulong)regs + regs->stkadj); +#ifdef DEBUG + printk("Performing stackadjust=%04x\n", regs->stkadj); +#endif + /* This must be copied with decreasing addresses to + handle overlaps. */ + tregs->vector = 0; + tregs->format = 0; + tregs->pc = regs->pc; + tregs->sr = regs->sr; + } + return 0; + +give_sigsegv: + force_sigsegv(sig, current); + return err; +} + +static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, + sigset_t *set, struct pt_regs *regs) +{ + struct rt_sigframe __user *frame; + int fsize = frame_extra_sizes[regs->format]; + int err = 0; + + if (fsize < 0) { +#ifdef DEBUG + printk ("setup_frame: Unknown frame format %#x\n", + regs->format); +#endif + goto give_sigsegv; + } + + frame = get_sigframe(ka, regs, sizeof(*frame)); + + if (fsize) + err |= copy_to_user (&frame->uc.uc_extra, regs + 1, fsize); + + err |= __put_user((current_thread_info()->exec_domain + && current_thread_info()->exec_domain->signal_invmap + && sig < 32 + ? current_thread_info()->exec_domain->signal_invmap[sig] + : sig), + &frame->sig); + err |= __put_user(&frame->info, &frame->pinfo); + err |= __put_user(&frame->uc, &frame->puc); + err |= copy_siginfo_to_user(&frame->info, info); + + /* Create the ucontext. */ + err |= __put_user(0, &frame->uc.uc_flags); + err |= __put_user(NULL, &frame->uc.uc_link); + err |= __put_user((void __user *)current->sas_ss_sp, + &frame->uc.uc_stack.ss_sp); + err |= __put_user(sas_ss_flags(rdusp()), + &frame->uc.uc_stack.ss_flags); + err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= rt_setup_ucontext(&frame->uc, regs); + err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set)); + + /* Set up to return from userspace. */ + err |= __put_user(frame->retcode, &frame->pretcode); +#ifdef __mcoldfire__ + /* movel #__NR_rt_sigreturn,d0; trap #0 */ + err |= __put_user(0x203c0000, (long __user *)(frame->retcode + 0)); + err |= __put_user(0x00004e40 + (__NR_rt_sigreturn << 16), + (long __user *)(frame->retcode + 4)); +#else + /* moveq #,d0; notb d0; trap #0 */ + err |= __put_user(0x70004600 + ((__NR_rt_sigreturn ^ 0xff) << 16), + (long __user *)(frame->retcode + 0)); + err |= __put_user(0x4e40, (short __user *)(frame->retcode + 4)); +#endif + + if (err) + goto give_sigsegv; + + push_cache ((unsigned long) &frame->retcode); + + /* + * Set up registers for signal handler. All the state we are about + * to destroy is successfully copied to sigframe. + */ + wrusp ((unsigned long) frame); + regs->pc = (unsigned long) ka->sa.sa_handler; + + /* + * This is subtle; if we build more than one sigframe, all but the + * first one will see frame format 0 and have fsize == 0, so we won't + * screw stkadj. + */ + if (fsize) + regs->stkadj = fsize; + + /* Prepare to skip over the extra stuff in the exception frame. */ + if (regs->stkadj) { + struct pt_regs *tregs = + (struct pt_regs *)((ulong)regs + regs->stkadj); +#ifdef DEBUG + printk("Performing stackadjust=%04x\n", regs->stkadj); +#endif + /* This must be copied with decreasing addresses to + handle overlaps. */ + tregs->vector = 0; + tregs->format = 0; + tregs->pc = regs->pc; + tregs->sr = regs->sr; + } + return 0; + +give_sigsegv: + force_sigsegv(sig, current); + return err; +} + +static inline void +handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) +{ + switch (regs->d0) { + case -ERESTARTNOHAND: + if (!has_handler) + goto do_restart; + regs->d0 = -EINTR; + break; + + case -ERESTART_RESTARTBLOCK: + if (!has_handler) { + regs->d0 = __NR_restart_syscall; + regs->pc -= 2; + break; + } + regs->d0 = -EINTR; + break; + + case -ERESTARTSYS: + if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { + regs->d0 = -EINTR; + break; + } + /* fallthrough */ + case -ERESTARTNOINTR: + do_restart: + regs->d0 = regs->orig_d0; + regs->pc -= 2; + break; + } +} + +void ptrace_signal_deliver(struct pt_regs *regs, void *cookie) +{ + if (regs->orig_d0 < 0) + return; + switch (regs->d0) { + case -ERESTARTNOHAND: + case -ERESTARTSYS: + case -ERESTARTNOINTR: + regs->d0 = regs->orig_d0; + regs->orig_d0 = -1; + regs->pc -= 2; + break; + } +} + +/* + * OK, we're invoking a handler + */ +static void +handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, + sigset_t *oldset, struct pt_regs *regs) +{ + int err; + /* are we from a system call? */ + if (regs->orig_d0 >= 0) + /* If so, check system call restarting.. */ + handle_restart(regs, ka, 1); + + /* set up the stack frame */ + if (ka->sa.sa_flags & SA_SIGINFO) + err = setup_rt_frame(sig, ka, info, oldset, regs); + else + err = setup_frame(sig, ka, oldset, regs); + + if (err) + return; + + sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + if (!(ka->sa.sa_flags & SA_NODEFER)) + sigaddset(¤t->blocked,sig); + recalc_sigpending(); + + if (test_thread_flag(TIF_DELAYED_TRACE)) { + regs->sr &= ~0x8000; + send_sig(SIGTRAP, current, 1); + } + + clear_thread_flag(TIF_RESTORE_SIGMASK); +} + +/* + * Note that 'init' is a special process: it doesn't get signals it doesn't + * want to handle. Thus you cannot kill init even with a SIGKILL even by + * mistake. + */ +asmlinkage void do_signal(struct pt_regs *regs) +{ + siginfo_t info; + struct k_sigaction ka; + int signr; + sigset_t *oldset; + + current->thread.esp0 = (unsigned long) regs; + + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else + oldset = ¤t->blocked; + + signr = get_signal_to_deliver(&info, &ka, regs, NULL); + if (signr > 0) { + /* Whee! Actually deliver the signal. */ + handle_signal(signr, &ka, &info, oldset, regs); + return; + } + + /* Did we come from a system call? */ + if (regs->orig_d0 >= 0) + /* Restart the system call - no handlers present */ + handle_restart(regs, NULL, 0); + + /* If there's no signal to deliver, we just restore the saved mask. */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } +} diff --git a/arch/m68k/kernel/signal_no.c b/arch/m68k/kernel/signal_no.c new file mode 100644 index 000000000000..36a81bb6835a --- /dev/null +++ b/arch/m68k/kernel/signal_no.c @@ -0,0 +1,765 @@ +/* + * linux/arch/m68knommu/kernel/signal.c + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +/* + * Linux/m68k support by Hamish Macdonald + * + * 68060 fixes by Jesper Skov + * + * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab + * + * mathemu support by Roman Zippel + * (Note: fpstate in the signal context is completely ignored for the emulator + * and the internal floating point format is put on stack) + */ + +/* + * ++roman (07/09/96): implemented signal stacks (specially for tosemu on + * Atari :-) Current limitation: Only one sigstack can be active at one time. + * If a second signal with SA_ONSTACK set arrives while working on a sigstack, + * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested + * signal handlers! + */ + +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/kernel.h> +#include <linux/signal.h> +#include <linux/syscalls.h> +#include <linux/errno.h> +#include <linux/wait.h> +#include <linux/ptrace.h> +#include <linux/unistd.h> +#include <linux/stddef.h> +#include <linux/highuid.h> +#include <linux/tty.h> +#include <linux/personality.h> +#include <linux/binfmts.h> + +#include <asm/setup.h> +#include <asm/uaccess.h> +#include <asm/pgtable.h> +#include <asm/traps.h> +#include <asm/ucontext.h> + +#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) + +void ret_from_user_signal(void); +void ret_from_user_rt_signal(void); + +/* + * Atomically swap in the new signal mask, and wait for a signal. + */ +asmlinkage int +sys_sigsuspend(int unused0, int unused1, old_sigset_t mask) +{ + mask &= _BLOCKABLE; + spin_lock_irq(¤t->sighand->siglock); + current->saved_sigmask = current->blocked; + siginitset(¤t->blocked, mask); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + current->state = TASK_INTERRUPTIBLE; + schedule(); + set_restore_sigmask(); + + return -ERESTARTNOHAND; +} + +asmlinkage int +sys_sigaction(int sig, const struct old_sigaction __user *act, + struct old_sigaction __user *oact) +{ + struct k_sigaction new_ka, old_ka; + int ret; + + if (act) { + old_sigset_t mask; + if (!access_ok(VERIFY_READ, act, sizeof(*act)) || + __get_user(new_ka.sa.sa_handler, &act->sa_handler) || + __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) || + __get_user(new_ka.sa.sa_flags, &act->sa_flags) || + __get_user(mask, &act->sa_mask)) + return -EFAULT; + siginitset(&new_ka.sa.sa_mask, mask); + } + + ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); + + if (!ret && oact) { + if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || + __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || + __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) || + __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || + __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) + return -EFAULT; + } + + return ret; +} + +asmlinkage int +sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) +{ + return do_sigaltstack(uss, uoss, rdusp()); +} + + +/* + * Do a signal return; undo the signal stack. + * + * Keep the return code on the stack quadword aligned! + * That makes the cache flush below easier. + */ + +struct sigframe +{ + char __user *pretcode; + int sig; + int code; + struct sigcontext __user *psc; + char retcode[8]; + unsigned long extramask[_NSIG_WORDS-1]; + struct sigcontext sc; +}; + +struct rt_sigframe +{ + char __user *pretcode; + int sig; + struct siginfo __user *pinfo; + void __user *puc; + char retcode[8]; + struct siginfo info; + struct ucontext uc; +}; + +#ifdef CONFIG_FPU + +static unsigned char fpu_version = 0; /* version number of fpu, set by setup_frame */ + +static inline int restore_fpu_state(struct sigcontext *sc) +{ + int err = 1; + + if (FPU_IS_EMU) { + /* restore registers */ + memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12); + memcpy(current->thread.fp, sc->sc_fpregs, 24); + return 0; + } + + if (sc->sc_fpstate[0]) { + /* Verify the frame format. */ + if (sc->sc_fpstate[0] != fpu_version) + goto out; + + __asm__ volatile (".chip 68k/68881\n\t" + "fmovemx %0,%%fp0-%%fp1\n\t" + "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" + ".chip 68k" + : /* no outputs */ + : "m" (*sc->sc_fpregs), "m" (*sc->sc_fpcntl)); + } + __asm__ volatile (".chip 68k/68881\n\t" + "frestore %0\n\t" + ".chip 68k" : : "m" (*sc->sc_fpstate)); + err = 0; + +out: + return err; +} + +#define FPCONTEXT_SIZE 216 +#define uc_fpstate uc_filler[0] +#define uc_formatvec uc_filler[FPCONTEXT_SIZE/4] +#define uc_extra uc_filler[FPCONTEXT_SIZE/4+1] + +static inline int rt_restore_fpu_state(struct ucontext __user *uc) +{ + unsigned char fpstate[FPCONTEXT_SIZE]; + int context_size = 0; + fpregset_t fpregs; + int err = 1; + + if (FPU_IS_EMU) { + /* restore fpu control register */ + if (__copy_from_user(current->thread.fpcntl, + uc->uc_mcontext.fpregs.f_fpcntl, 12)) + goto out; + /* restore all other fpu register */ + if (__copy_from_user(current->thread.fp, + uc->uc_mcontext.fpregs.f_fpregs, 96)) + goto out; + return 0; + } + + if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate)) + goto out; + if (fpstate[0]) { + context_size = fpstate[1]; + + /* Verify the frame format. */ + if (fpstate[0] != fpu_version) + goto out; + if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs, + sizeof(fpregs))) + goto out; + __asm__ volatile (".chip 68k/68881\n\t" + "fmovemx %0,%%fp0-%%fp7\n\t" + "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" + ".chip 68k" + : /* no outputs */ + : "m" (*fpregs.f_fpregs), + "m" (*fpregs.f_fpcntl)); + } + if (context_size && + __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1, + context_size)) + goto out; + __asm__ volatile (".chip 68k/68881\n\t" + "frestore %0\n\t" + ".chip 68k" : : "m" (*fpstate)); + err = 0; + +out: + return err; +} + +#endif + +static inline int +restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp, + int *pd0) +{ + int formatvec; + struct sigcontext context; + int err = 0; + + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + + /* get previous context */ + if (copy_from_user(&context, usc, sizeof(context))) + goto badframe; + + /* restore passed registers */ + regs->d1 = context.sc_d1; + regs->a0 = context.sc_a0; + regs->a1 = context.sc_a1; + ((struct switch_stack *)regs - 1)->a5 = context.sc_a5; + regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff); + regs->pc = context.sc_pc; + regs->orig_d0 = -1; /* disable syscall checks */ + wrusp(context.sc_usp); + formatvec = context.sc_formatvec; + regs->format = formatvec >> 12; + regs->vector = formatvec & 0xfff; + +#ifdef CONFIG_FPU + err = restore_fpu_state(&context); +#endif + + *pd0 = context.sc_d0; + return err; + +badframe: + return 1; +} + +static inline int +rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, + struct ucontext __user *uc, int *pd0) +{ + int temp; + greg_t __user *gregs = uc->uc_mcontext.gregs; + unsigned long usp; + int err; + + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + + err = __get_user(temp, &uc->uc_mcontext.version); + if (temp != MCONTEXT_VERSION) + goto badframe; + /* restore passed registers */ + err |= __get_user(regs->d0, &gregs[0]); + err |= __get_user(regs->d1, &gregs[1]); + err |= __get_user(regs->d2, &gregs[2]); + err |= __get_user(regs->d3, &gregs[3]); + err |= __get_user(regs->d4, &gregs[4]); + err |= __get_user(regs->d5, &gregs[5]); + err |= __get_user(sw->d6, &gregs[6]); + err |= __get_user(sw->d7, &gregs[7]); + err |= __get_user(regs->a0, &gregs[8]); + err |= __get_user(regs->a1, &gregs[9]); + err |= __get_user(regs->a2, &gregs[10]); + err |= __get_user(sw->a3, &gregs[11]); + err |= __get_user(sw->a4, &gregs[12]); + err |= __get_user(sw->a5, &gregs[13]); + err |= __get_user(sw->a6, &gregs[14]); + err |= __get_user(usp, &gregs[15]); + wrusp(usp); + err |= __get_user(regs->pc, &gregs[16]); + err |= __get_user(temp, &gregs[17]); + regs->sr = (regs->sr & 0xff00) | (temp & 0xff); + regs->orig_d0 = -1; /* disable syscall checks */ + regs->format = temp >> 12; + regs->vector = temp & 0xfff; + + if (do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT) + goto badframe; + + *pd0 = regs->d0; + return err; + +badframe: + return 1; +} + +asmlinkage int do_sigreturn(unsigned long __unused) +{ + struct switch_stack *sw = (struct switch_stack *) &__unused; + struct pt_regs *regs = (struct pt_regs *) (sw + 1); + unsigned long usp = rdusp(); + struct sigframe __user *frame = (struct sigframe __user *)(usp - 4); + sigset_t set; + int d0; + + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) + goto badframe; + if (__get_user(set.sig[0], &frame->sc.sc_mask) || + (_NSIG_WORDS > 1 && + __copy_from_user(&set.sig[1], &frame->extramask, + sizeof(frame->extramask)))) + goto badframe; + + sigdelsetmask(&set, ~_BLOCKABLE); + spin_lock_irq(¤t->sighand->siglock); + current->blocked = set; + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + if (restore_sigcontext(regs, &frame->sc, frame + 1, &d0)) + goto badframe; + return d0; + +badframe: + force_sig(SIGSEGV, current); + return 0; +} + +asmlinkage int do_rt_sigreturn(unsigned long __unused) +{ + struct switch_stack *sw = (struct switch_stack *) &__unused; + struct pt_regs *regs = (struct pt_regs *) (sw + 1); + unsigned long usp = rdusp(); + struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4); + sigset_t set; + int d0; + + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) + goto badframe; + if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) + goto badframe; + + sigdelsetmask(&set, ~_BLOCKABLE); + spin_lock_irq(¤t->sighand->siglock); + current->blocked = set; + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + if (rt_restore_ucontext(regs, sw, &frame->uc, &d0)) + goto badframe; + return d0; + +badframe: + force_sig(SIGSEGV, current); + return 0; +} + +#ifdef CONFIG_FPU +/* + * Set up a signal frame. + */ + +static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs) +{ + if (FPU_IS_EMU) { + /* save registers */ + memcpy(sc->sc_fpcntl, current->thread.fpcntl, 12); + memcpy(sc->sc_fpregs, current->thread.fp, 24); + return; + } + + __asm__ volatile (".chip 68k/68881\n\t" + "fsave %0\n\t" + ".chip 68k" + : : "m" (*sc->sc_fpstate) : "memory"); + + if (sc->sc_fpstate[0]) { + fpu_version = sc->sc_fpstate[0]; + __asm__ volatile (".chip 68k/68881\n\t" + "fmovemx %%fp0-%%fp1,%0\n\t" + "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" + ".chip 68k" + : "=m" (*sc->sc_fpregs), + "=m" (*sc->sc_fpcntl) + : /* no inputs */ + : "memory"); + } +} + +static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs) +{ + unsigned char fpstate[FPCONTEXT_SIZE]; + int context_size = 0; + int err = 0; + + if (FPU_IS_EMU) { + /* save fpu control register */ + err |= copy_to_user(uc->uc_mcontext.fpregs.f_pcntl, + current->thread.fpcntl, 12); + /* save all other fpu register */ + err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs, + current->thread.fp, 96); + return err; + } + + __asm__ volatile (".chip 68k/68881\n\t" + "fsave %0\n\t" + ".chip 68k" + : : "m" (*fpstate) : "memory"); + + err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate); + if (fpstate[0]) { + fpregset_t fpregs; + context_size = fpstate[1]; + fpu_version = fpstate[0]; + __asm__ volatile (".chip 68k/68881\n\t" + "fmovemx %%fp0-%%fp7,%0\n\t" + "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" + ".chip 68k" + : "=m" (*fpregs.f_fpregs), + "=m" (*fpregs.f_fpcntl) + : /* no inputs */ + : "memory"); + err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs, + sizeof(fpregs)); + } + if (context_size) + err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4, + context_size); + return err; +} + +#endif + +static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, + unsigned long mask) +{ + sc->sc_mask = mask; + sc->sc_usp = rdusp(); + sc->sc_d0 = regs->d0; + sc->sc_d1 = regs->d1; + sc->sc_a0 = regs->a0; + sc->sc_a1 = regs->a1; + sc->sc_a5 = ((struct switch_stack *)regs - 1)->a5; + sc->sc_sr = regs->sr; + sc->sc_pc = regs->pc; + sc->sc_formatvec = regs->format << 12 | regs->vector; +#ifdef CONFIG_FPU + save_fpu_state(sc, regs); +#endif +} + +static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs) +{ + struct switch_stack *sw = (struct switch_stack *)regs - 1; + greg_t __user *gregs = uc->uc_mcontext.gregs; + int err = 0; + + err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version); + err |= __put_user(regs->d0, &gregs[0]); + err |= __put_user(regs->d1, &gregs[1]); + err |= __put_user(regs->d2, &gregs[2]); + err |= __put_user(regs->d3, &gregs[3]); + err |= __put_user(regs->d4, &gregs[4]); + err |= __put_user(regs->d5, &gregs[5]); + err |= __put_user(sw->d6, &gregs[6]); + err |= __put_user(sw->d7, &gregs[7]); + err |= __put_user(regs->a0, &gregs[8]); + err |= __put_user(regs->a1, &gregs[9]); + err |= __put_user(regs->a2, &gregs[10]); + err |= __put_user(sw->a3, &gregs[11]); + err |= __put_user(sw->a4, &gregs[12]); + err |= __put_user(sw->a5, &gregs[13]); + err |= __put_user(sw->a6, &gregs[14]); + err |= __put_user(rdusp(), &gregs[15]); + err |= __put_user(regs->pc, &gregs[16]); + err |= __put_user(regs->sr, &gregs[17]); +#ifdef CONFIG_FPU + err |= rt_save_fpu_state(uc, regs); +#endif + return err; +} + +static inline void __user * +get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) +{ + unsigned long usp; + + /* Default to using normal stack. */ + usp = rdusp(); + + /* This is the X/Open sanctioned signal stack switching. */ + if (ka->sa.sa_flags & SA_ONSTACK) { + if (!sas_ss_flags(usp)) + usp = current->sas_ss_sp + current->sas_ss_size; + } + return (void __user *)((usp - frame_size) & -8UL); +} + +static int setup_frame (int sig, struct k_sigaction *ka, + sigset_t *set, struct pt_regs *regs) +{ + struct sigframe __user *frame; + struct sigcontext context; + int err = 0; + + frame = get_sigframe(ka, regs, sizeof(*frame)); + + err |= __put_user((current_thread_info()->exec_domain + && current_thread_info()->exec_domain->signal_invmap + && sig < 32 + ? current_thread_info()->exec_domain->signal_invmap[sig] + : sig), + &frame->sig); + + err |= __put_user(regs->vector, &frame->code); + err |= __put_user(&frame->sc, &frame->psc); + + if (_NSIG_WORDS > 1) + err |= copy_to_user(frame->extramask, &set->sig[1], + sizeof(frame->extramask)); + + setup_sigcontext(&context, regs, set->sig[0]); + err |= copy_to_user (&frame->sc, &context, sizeof(context)); + + /* Set up to return from userspace. */ + err |= __put_user((void *) ret_from_user_signal, &frame->pretcode); + + if (err) + goto give_sigsegv; + + /* Set up registers for signal handler */ + wrusp ((unsigned long) frame); + regs->pc = (unsigned long) ka->sa.sa_handler; + ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data; + regs->format = 0x4; /*set format byte to make stack appear modulo 4 + which it will be when doing the rte */ + +adjust_stack: + /* Prepare to skip over the extra stuff in the exception frame. */ + if (regs->stkadj) { + struct pt_regs *tregs = + (struct pt_regs *)((ulong)regs + regs->stkadj); +#if defined(DEBUG) + printk(KERN_DEBUG "Performing stackadjust=%04x\n", regs->stkadj); +#endif + /* This must be copied with decreasing addresses to + handle overlaps. */ + tregs->vector = 0; + tregs->format = 0; + tregs->pc = regs->pc; + tregs->sr = regs->sr; + } + return err; + +give_sigsegv: + force_sigsegv(sig, current); + goto adjust_stack; +} + +static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, + sigset_t *set, struct pt_regs *regs) +{ + struct rt_sigframe __user *frame; + int err = 0; + + frame = get_sigframe(ka, regs, sizeof(*frame)); + + err |= __put_user((current_thread_info()->exec_domain + && current_thread_info()->exec_domain->signal_invmap + && sig < 32 + ? current_thread_info()->exec_domain->signal_invmap[sig] + : sig), + &frame->sig); + err |= __put_user(&frame->info, &frame->pinfo); + err |= __put_user(&frame->uc, &frame->puc); + err |= copy_siginfo_to_user(&frame->info, info); + + /* Create the ucontext. */ + err |= __put_user(0, &frame->uc.uc_flags); + err |= __put_user(NULL, &frame->uc.uc_link); + err |= __put_user((void __user *)current->sas_ss_sp, + &frame->uc.uc_stack.ss_sp); + err |= __put_user(sas_ss_flags(rdusp()), + &frame->uc.uc_stack.ss_flags); + err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= rt_setup_ucontext(&frame->uc, regs); + err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set)); + + /* Set up to return from userspace. */ + err |= __put_user((void *) ret_from_user_rt_signal, &frame->pretcode); + + if (err) + goto give_sigsegv; + + /* Set up registers for signal handler */ + wrusp ((unsigned long) frame); + regs->pc = (unsigned long) ka->sa.sa_handler; + ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data; + regs->format = 0x4; /*set format byte to make stack appear modulo 4 + which it will be when doing the rte */ + +adjust_stack: + /* Prepare to skip over the extra stuff in the exception frame. */ + if (regs->stkadj) { + struct pt_regs *tregs = + (struct pt_regs *)((ulong)regs + regs->stkadj); +#if defined(DEBUG) + printk(KERN_DEBUG "Performing stackadjust=%04x\n", regs->stkadj); +#endif + /* This must be copied with decreasing addresses to + handle overlaps. */ + tregs->vector = 0; + tregs->format = 0; + tregs->pc = regs->pc; + tregs->sr = regs->sr; + } + return err; + +give_sigsegv: + force_sigsegv(sig, current); + goto adjust_stack; +} + +static inline void +handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) +{ + switch (regs->d0) { + case -ERESTARTNOHAND: + if (!has_handler) + goto do_restart; + regs->d0 = -EINTR; + break; + + case -ERESTART_RESTARTBLOCK: + if (!has_handler) { + regs->d0 = __NR_restart_syscall; + regs->pc -= 2; + break; + } + regs->d0 = -EINTR; + break; + + case -ERESTARTSYS: + if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { + regs->d0 = -EINTR; + break; + } + /* fallthrough */ + case -ERESTARTNOINTR: + do_restart: + regs->d0 = regs->orig_d0; + regs->pc -= 2; + break; + } +} + +/* + * OK, we're invoking a handler + */ +static void +handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, + sigset_t *oldset, struct pt_regs *regs) +{ + int err; + /* are we from a system call? */ + if (regs->orig_d0 >= 0) + /* If so, check system call restarting.. */ + handle_restart(regs, ka, 1); + + /* set up the stack frame */ + if (ka->sa.sa_flags & SA_SIGINFO) + err = setup_rt_frame(sig, ka, info, oldset, regs); + else + err = setup_frame(sig, ka, oldset, regs); + + if (err) + return; + + spin_lock_irq(¤t->sighand->siglock); + sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + if (!(ka->sa.sa_flags & SA_NODEFER)) + sigaddset(¤t->blocked,sig); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + clear_thread_flag(TIF_RESTORE_SIGMASK); +} + +/* + * Note that 'init' is a special process: it doesn't get signals it doesn't + * want to handle. Thus you cannot kill init even with a SIGKILL even by + * mistake. + */ +asmlinkage void do_signal(struct pt_regs *regs) +{ + struct k_sigaction ka; + siginfo_t info; + int signr; + sigset_t *oldset; + + /* + * We want the common case to go fast, which + * is why we may in certain cases get here from + * kernel mode. Just return without doing anything + * if so. + */ + if (!user_mode(regs)) + return; + + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else + oldset = ¤t->blocked; + + signr = get_signal_to_deliver(&info, &ka, regs, NULL); + if (signr > 0) { + /* Whee! Actually deliver the signal. */ + handle_signal(signr, &ka, &info, oldset, regs); + return; + } + + /* Did we come from a system call? */ + if (regs->orig_d0 >= 0) { + /* Restart the system call - no handlers present */ + handle_restart(regs, NULL, 0); + } + + /* If there's no signal to deliver, we just restore the saved mask. */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } +} diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c index 3db2e7f902aa..63013df33584 100644 --- a/arch/m68k/kernel/sys_m68k.c +++ b/arch/m68k/kernel/sys_m68k.c @@ -1,546 +1,5 @@ -/* - * linux/arch/m68k/kernel/sys_m68k.c - * - * This file contains various random system calls that - * have a non-standard calling sequence on the Linux/m68k - * platform. - */ - -#include <linux/capability.h> -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/fs.h> -#include <linux/smp.h> -#include <linux/sem.h> -#include <linux/msg.h> -#include <linux/shm.h> -#include <linux/stat.h> -#include <linux/syscalls.h> -#include <linux/mman.h> -#include <linux/file.h> -#include <linux/ipc.h> - -#include <asm/setup.h> -#include <asm/uaccess.h> -#include <asm/cachectl.h> -#include <asm/traps.h> -#include <asm/page.h> -#include <asm/unistd.h> -#include <linux/elf.h> -#include <asm/tlb.h> - -asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, - unsigned long error_code); - -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - /* - * This is wrong for sun3 - there PAGE_SIZE is 8Kb, - * so we need to shift the argument down by 1; m68k mmap64(3) - * (in libc) expects the last argument of mmap2 in 4Kb units. - */ - return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); -} - -/* Convert virtual (user) address VADDR to physical address PADDR */ -#define virt_to_phys_040(vaddr) \ -({ \ - unsigned long _mmusr, _paddr; \ - \ - __asm__ __volatile__ (".chip 68040\n\t" \ - "ptestr (%1)\n\t" \ - "movec %%mmusr,%0\n\t" \ - ".chip 68k" \ - : "=r" (_mmusr) \ - : "a" (vaddr)); \ - _paddr = (_mmusr & MMU_R_040) ? (_mmusr & PAGE_MASK) : 0; \ - _paddr; \ -}) - -static inline int -cache_flush_040 (unsigned long addr, int scope, int cache, unsigned long len) -{ - unsigned long paddr, i; - - switch (scope) - { - case FLUSH_SCOPE_ALL: - switch (cache) - { - case FLUSH_CACHE_DATA: - /* This nop is needed for some broken versions of the 68040. */ - __asm__ __volatile__ ("nop\n\t" - ".chip 68040\n\t" - "cpusha %dc\n\t" - ".chip 68k"); - break; - case FLUSH_CACHE_INSN: - __asm__ __volatile__ ("nop\n\t" - ".chip 68040\n\t" - "cpusha %ic\n\t" - ".chip 68k"); - break; - default: - case FLUSH_CACHE_BOTH: - __asm__ __volatile__ ("nop\n\t" - ".chip 68040\n\t" - "cpusha %bc\n\t" - ".chip 68k"); - break; - } - break; - - case FLUSH_SCOPE_LINE: - /* Find the physical address of the first mapped page in the - address range. */ - if ((paddr = virt_to_phys_040(addr))) { - paddr += addr & ~(PAGE_MASK | 15); - len = (len + (addr & 15) + 15) >> 4; - } else { - unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK); - - if (len <= tmp) - return 0; - addr += tmp; - len -= tmp; - tmp = PAGE_SIZE; - for (;;) - { - if ((paddr = virt_to_phys_040(addr))) - break; - if (len <= tmp) - return 0; - addr += tmp; - len -= tmp; - } - len = (len + 15) >> 4; - } - i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4; - while (len--) - { - switch (cache) - { - case FLUSH_CACHE_DATA: - __asm__ __volatile__ ("nop\n\t" - ".chip 68040\n\t" - "cpushl %%dc,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - case FLUSH_CACHE_INSN: - __asm__ __volatile__ ("nop\n\t" - ".chip 68040\n\t" - "cpushl %%ic,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - default: - case FLUSH_CACHE_BOTH: - __asm__ __volatile__ ("nop\n\t" - ".chip 68040\n\t" - "cpushl %%bc,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - } - if (!--i && len) - { - /* - * No need to page align here since it is done by - * virt_to_phys_040(). - */ - addr += PAGE_SIZE; - i = PAGE_SIZE / 16; - /* Recompute physical address when crossing a page - boundary. */ - for (;;) - { - if ((paddr = virt_to_phys_040(addr))) - break; - if (len <= i) - return 0; - len -= i; - addr += PAGE_SIZE; - } - } - else - paddr += 16; - } - break; - - default: - case FLUSH_SCOPE_PAGE: - len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1); - for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE) - { - if (!(paddr = virt_to_phys_040(addr))) - continue; - switch (cache) - { - case FLUSH_CACHE_DATA: - __asm__ __volatile__ ("nop\n\t" - ".chip 68040\n\t" - "cpushp %%dc,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - case FLUSH_CACHE_INSN: - __asm__ __volatile__ ("nop\n\t" - ".chip 68040\n\t" - "cpushp %%ic,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - default: - case FLUSH_CACHE_BOTH: - __asm__ __volatile__ ("nop\n\t" - ".chip 68040\n\t" - "cpushp %%bc,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - } - } - break; - } - return 0; -} - -#define virt_to_phys_060(vaddr) \ -({ \ - unsigned long paddr; \ - __asm__ __volatile__ (".chip 68060\n\t" \ - "plpar (%0)\n\t" \ - ".chip 68k" \ - : "=a" (paddr) \ - : "0" (vaddr)); \ - (paddr); /* XXX */ \ -}) - -static inline int -cache_flush_060 (unsigned long addr, int scope, int cache, unsigned long len) -{ - unsigned long paddr, i; - - /* - * 68060 manual says: - * cpush %dc : flush DC, remains valid (with our %cacr setup) - * cpush %ic : invalidate IC - * cpush %bc : flush DC + invalidate IC - */ - switch (scope) - { - case FLUSH_SCOPE_ALL: - switch (cache) - { - case FLUSH_CACHE_DATA: - __asm__ __volatile__ (".chip 68060\n\t" - "cpusha %dc\n\t" - ".chip 68k"); - break; - case FLUSH_CACHE_INSN: - __asm__ __volatile__ (".chip 68060\n\t" - "cpusha %ic\n\t" - ".chip 68k"); - break; - default: - case FLUSH_CACHE_BOTH: - __asm__ __volatile__ (".chip 68060\n\t" - "cpusha %bc\n\t" - ".chip 68k"); - break; - } - break; - - case FLUSH_SCOPE_LINE: - /* Find the physical address of the first mapped page in the - address range. */ - len += addr & 15; - addr &= -16; - if (!(paddr = virt_to_phys_060(addr))) { - unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK); - - if (len <= tmp) - return 0; - addr += tmp; - len -= tmp; - tmp = PAGE_SIZE; - for (;;) - { - if ((paddr = virt_to_phys_060(addr))) - break; - if (len <= tmp) - return 0; - addr += tmp; - len -= tmp; - } - } - len = (len + 15) >> 4; - i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4; - while (len--) - { - switch (cache) - { - case FLUSH_CACHE_DATA: - __asm__ __volatile__ (".chip 68060\n\t" - "cpushl %%dc,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - case FLUSH_CACHE_INSN: - __asm__ __volatile__ (".chip 68060\n\t" - "cpushl %%ic,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - default: - case FLUSH_CACHE_BOTH: - __asm__ __volatile__ (".chip 68060\n\t" - "cpushl %%bc,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - } - if (!--i && len) - { - - /* - * We just want to jump to the first cache line - * in the next page. - */ - addr += PAGE_SIZE; - addr &= PAGE_MASK; - - i = PAGE_SIZE / 16; - /* Recompute physical address when crossing a page - boundary. */ - for (;;) - { - if ((paddr = virt_to_phys_060(addr))) - break; - if (len <= i) - return 0; - len -= i; - addr += PAGE_SIZE; - } - } - else - paddr += 16; - } - break; - - default: - case FLUSH_SCOPE_PAGE: - len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1); - addr &= PAGE_MASK; /* Workaround for bug in some - revisions of the 68060 */ - for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE) - { - if (!(paddr = virt_to_phys_060(addr))) - continue; - switch (cache) - { - case FLUSH_CACHE_DATA: - __asm__ __volatile__ (".chip 68060\n\t" - "cpushp %%dc,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - case FLUSH_CACHE_INSN: - __asm__ __volatile__ (".chip 68060\n\t" - "cpushp %%ic,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - default: - case FLUSH_CACHE_BOTH: - __asm__ __volatile__ (".chip 68060\n\t" - "cpushp %%bc,(%0)\n\t" - ".chip 68k" - : : "a" (paddr)); - break; - } - } - break; - } - return 0; -} - -/* sys_cacheflush -- flush (part of) the processor cache. */ -asmlinkage int -sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) -{ - struct vm_area_struct *vma; - int ret = -EINVAL; - - if (scope < FLUSH_SCOPE_LINE || scope > FLUSH_SCOPE_ALL || - cache & ~FLUSH_CACHE_BOTH) - goto out; - - if (scope == FLUSH_SCOPE_ALL) { - /* Only the superuser may explicitly flush the whole cache. */ - ret = -EPERM; - if (!capable(CAP_SYS_ADMIN)) - goto out; - } else { - /* - * Verify that the specified address region actually belongs - * to this process. - */ - vma = find_vma (current->mm, addr); - ret = -EINVAL; - /* Check for overflow. */ - if (addr + len < addr) - goto out; - if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end) - goto out; - } - - if (CPU_IS_020_OR_030) { - if (scope == FLUSH_SCOPE_LINE && len < 256) { - unsigned long cacr; - __asm__ ("movec %%cacr, %0" : "=r" (cacr)); - if (cache & FLUSH_CACHE_INSN) - cacr |= 4; - if (cache & FLUSH_CACHE_DATA) - cacr |= 0x400; - len >>= 2; - while (len--) { - __asm__ __volatile__ ("movec %1, %%caar\n\t" - "movec %0, %%cacr" - : /* no outputs */ - : "r" (cacr), "r" (addr)); - addr += 4; - } - } else { - /* Flush the whole cache, even if page granularity requested. */ - unsigned long cacr; - __asm__ ("movec %%cacr, %0" : "=r" (cacr)); - if (cache & FLUSH_CACHE_INSN) - cacr |= 8; - if (cache & FLUSH_CACHE_DATA) - cacr |= 0x800; - __asm__ __volatile__ ("movec %0, %%cacr" : : "r" (cacr)); - } - ret = 0; - goto out; - } else { - /* - * 040 or 060: don't blindly trust 'scope', someone could - * try to flush a few megs of memory. - */ - - if (len>=3*PAGE_SIZE && scope<FLUSH_SCOPE_PAGE) - scope=FLUSH_SCOPE_PAGE; - if (len>=10*PAGE_SIZE && scope<FLUSH_SCOPE_ALL) - scope=FLUSH_SCOPE_ALL; - if (CPU_IS_040) { - ret = cache_flush_040 (addr, scope, cache, len); - } else if (CPU_IS_060) { - ret = cache_flush_060 (addr, scope, cache, len); - } - } -out: - return ret; -} - -asmlinkage int sys_getpagesize(void) -{ - return PAGE_SIZE; -} - -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -int kernel_execve(const char *filename, - const char *const argv[], - const char *const envp[]) -{ - register long __res asm ("%d0") = __NR_execve; - register long __a asm ("%d1") = (long)(filename); - register long __b asm ("%d2") = (long)(argv); - register long __c asm ("%d3") = (long)(envp); - asm volatile ("trap #0" : "+d" (__res) - : "d" (__a), "d" (__b), "d" (__c)); - return __res; -} - -asmlinkage unsigned long sys_get_thread_area(void) -{ - return current_thread_info()->tp_value; -} - -asmlinkage int sys_set_thread_area(unsigned long tp) -{ - current_thread_info()->tp_value = tp; - return 0; -} - -/* This syscall gets its arguments in A0 (mem), D2 (oldval) and - D1 (newval). */ -asmlinkage int -sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, - unsigned long __user * mem) -{ - /* This was borrowed from ARM's implementation. */ - for (;;) { - struct mm_struct *mm = current->mm; - pgd_t *pgd; - pmd_t *pmd; - pte_t *pte; - spinlock_t *ptl; - unsigned long mem_value; - - down_read(&mm->mmap_sem); - pgd = pgd_offset(mm, (unsigned long)mem); - if (!pgd_present(*pgd)) - goto bad_access; - pmd = pmd_offset(pgd, (unsigned long)mem); - if (!pmd_present(*pmd)) - goto bad_access; - pte = pte_offset_map_lock(mm, pmd, (unsigned long)mem, &ptl); - if (!pte_present(*pte) || !pte_dirty(*pte) - || !pte_write(*pte)) { - pte_unmap_unlock(pte, ptl); - goto bad_access; - } - - mem_value = *mem; - if (mem_value == oldval) - *mem = newval; - - pte_unmap_unlock(pte, ptl); - up_read(&mm->mmap_sem); - return mem_value; - - bad_access: - up_read(&mm->mmap_sem); - /* This is not necessarily a bad access, we can get here if - a memory we're trying to write to should be copied-on-write. - Make the kernel do the necessary page stuff, then re-iterate. - Simulate a write access fault to do that. */ - { - /* The first argument of the function corresponds to - D1, which is the first field of struct pt_regs. */ - struct pt_regs *fp = (struct pt_regs *)&newval; - - /* '3' is an RMW flag. */ - if (do_page_fault(fp, (unsigned long)mem, 3)) - /* If the do_page_fault() failed, we don't - have anything meaningful to return. - There should be a SIGSEGV pending for - the process. */ - return 0xdeadbeef; - } - } -} - -asmlinkage int sys_atomic_barrier(void) -{ - /* no code needed for uniprocs */ - return 0; -} +#ifdef CONFIG_MMU +#include "sys_m68k_mm.c" +#else +#include "sys_m68k_no.c" +#endif diff --git a/arch/m68k/kernel/sys_m68k_mm.c b/arch/m68k/kernel/sys_m68k_mm.c new file mode 100644 index 000000000000..3db2e7f902aa --- /dev/null +++ b/arch/m68k/kernel/sys_m68k_mm.c @@ -0,0 +1,546 @@ +/* + * linux/arch/m68k/kernel/sys_m68k.c + * + * This file contains various random system calls that + * have a non-standard calling sequence on the Linux/m68k + * platform. + */ + +#include <linux/capability.h> +#include <linux/errno.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/fs.h> +#include <linux/smp.h> +#include <linux/sem.h> +#include <linux/msg.h> +#include <linux/shm.h> +#include <linux/stat.h> +#include <linux/syscalls.h> +#include <linux/mman.h> +#include <linux/file.h> +#include <linux/ipc.h> + +#include <asm/setup.h> +#include <asm/uaccess.h> +#include <asm/cachectl.h> +#include <asm/traps.h> +#include <asm/page.h> +#include <asm/unistd.h> +#include <linux/elf.h> +#include <asm/tlb.h> + +asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, + unsigned long error_code); + +asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long fd, unsigned long pgoff) +{ + /* + * This is wrong for sun3 - there PAGE_SIZE is 8Kb, + * so we need to shift the argument down by 1; m68k mmap64(3) + * (in libc) expects the last argument of mmap2 in 4Kb units. + */ + return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); +} + +/* Convert virtual (user) address VADDR to physical address PADDR */ +#define virt_to_phys_040(vaddr) \ +({ \ + unsigned long _mmusr, _paddr; \ + \ + __asm__ __volatile__ (".chip 68040\n\t" \ + "ptestr (%1)\n\t" \ + "movec %%mmusr,%0\n\t" \ + ".chip 68k" \ + : "=r" (_mmusr) \ + : "a" (vaddr)); \ + _paddr = (_mmusr & MMU_R_040) ? (_mmusr & PAGE_MASK) : 0; \ + _paddr; \ +}) + +static inline int +cache_flush_040 (unsigned long addr, int scope, int cache, unsigned long len) +{ + unsigned long paddr, i; + + switch (scope) + { + case FLUSH_SCOPE_ALL: + switch (cache) + { + case FLUSH_CACHE_DATA: + /* This nop is needed for some broken versions of the 68040. */ + __asm__ __volatile__ ("nop\n\t" + ".chip 68040\n\t" + "cpusha %dc\n\t" + ".chip 68k"); + break; + case FLUSH_CACHE_INSN: + __asm__ __volatile__ ("nop\n\t" + ".chip 68040\n\t" + "cpusha %ic\n\t" + ".chip 68k"); + break; + default: + case FLUSH_CACHE_BOTH: + __asm__ __volatile__ ("nop\n\t" + ".chip 68040\n\t" + "cpusha %bc\n\t" + ".chip 68k"); + break; + } + break; + + case FLUSH_SCOPE_LINE: + /* Find the physical address of the first mapped page in the + address range. */ + if ((paddr = virt_to_phys_040(addr))) { + paddr += addr & ~(PAGE_MASK | 15); + len = (len + (addr & 15) + 15) >> 4; + } else { + unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK); + + if (len <= tmp) + return 0; + addr += tmp; + len -= tmp; + tmp = PAGE_SIZE; + for (;;) + { + if ((paddr = virt_to_phys_040(addr))) + break; + if (len <= tmp) + return 0; + addr += tmp; + len -= tmp; + } + len = (len + 15) >> 4; + } + i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4; + while (len--) + { + switch (cache) + { + case FLUSH_CACHE_DATA: + __asm__ __volatile__ ("nop\n\t" + ".chip 68040\n\t" + "cpushl %%dc,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + case FLUSH_CACHE_INSN: + __asm__ __volatile__ ("nop\n\t" + ".chip 68040\n\t" + "cpushl %%ic,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + default: + case FLUSH_CACHE_BOTH: + __asm__ __volatile__ ("nop\n\t" + ".chip 68040\n\t" + "cpushl %%bc,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + } + if (!--i && len) + { + /* + * No need to page align here since it is done by + * virt_to_phys_040(). + */ + addr += PAGE_SIZE; + i = PAGE_SIZE / 16; + /* Recompute physical address when crossing a page + boundary. */ + for (;;) + { + if ((paddr = virt_to_phys_040(addr))) + break; + if (len <= i) + return 0; + len -= i; + addr += PAGE_SIZE; + } + } + else + paddr += 16; + } + break; + + default: + case FLUSH_SCOPE_PAGE: + len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1); + for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE) + { + if (!(paddr = virt_to_phys_040(addr))) + continue; + switch (cache) + { + case FLUSH_CACHE_DATA: + __asm__ __volatile__ ("nop\n\t" + ".chip 68040\n\t" + "cpushp %%dc,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + case FLUSH_CACHE_INSN: + __asm__ __volatile__ ("nop\n\t" + ".chip 68040\n\t" + "cpushp %%ic,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + default: + case FLUSH_CACHE_BOTH: + __asm__ __volatile__ ("nop\n\t" + ".chip 68040\n\t" + "cpushp %%bc,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + } + } + break; + } + return 0; +} + +#define virt_to_phys_060(vaddr) \ +({ \ + unsigned long paddr; \ + __asm__ __volatile__ (".chip 68060\n\t" \ + "plpar (%0)\n\t" \ + ".chip 68k" \ + : "=a" (paddr) \ + : "0" (vaddr)); \ + (paddr); /* XXX */ \ +}) + +static inline int +cache_flush_060 (unsigned long addr, int scope, int cache, unsigned long len) +{ + unsigned long paddr, i; + + /* + * 68060 manual says: + * cpush %dc : flush DC, remains valid (with our %cacr setup) + * cpush %ic : invalidate IC + * cpush %bc : flush DC + invalidate IC + */ + switch (scope) + { + case FLUSH_SCOPE_ALL: + switch (cache) + { + case FLUSH_CACHE_DATA: + __asm__ __volatile__ (".chip 68060\n\t" + "cpusha %dc\n\t" + ".chip 68k"); + break; + case FLUSH_CACHE_INSN: + __asm__ __volatile__ (".chip 68060\n\t" + "cpusha %ic\n\t" + ".chip 68k"); + break; + default: + case FLUSH_CACHE_BOTH: + __asm__ __volatile__ (".chip 68060\n\t" + "cpusha %bc\n\t" + ".chip 68k"); + break; + } + break; + + case FLUSH_SCOPE_LINE: + /* Find the physical address of the first mapped page in the + address range. */ + len += addr & 15; + addr &= -16; + if (!(paddr = virt_to_phys_060(addr))) { + unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK); + + if (len <= tmp) + return 0; + addr += tmp; + len -= tmp; + tmp = PAGE_SIZE; + for (;;) + { + if ((paddr = virt_to_phys_060(addr))) + break; + if (len <= tmp) + return 0; + addr += tmp; + len -= tmp; + } + } + len = (len + 15) >> 4; + i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4; + while (len--) + { + switch (cache) + { + case FLUSH_CACHE_DATA: + __asm__ __volatile__ (".chip 68060\n\t" + "cpushl %%dc,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + case FLUSH_CACHE_INSN: + __asm__ __volatile__ (".chip 68060\n\t" + "cpushl %%ic,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + default: + case FLUSH_CACHE_BOTH: + __asm__ __volatile__ (".chip 68060\n\t" + "cpushl %%bc,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + } + if (!--i && len) + { + + /* + * We just want to jump to the first cache line + * in the next page. + */ + addr += PAGE_SIZE; + addr &= PAGE_MASK; + + i = PAGE_SIZE / 16; + /* Recompute physical address when crossing a page + boundary. */ + for (;;) + { + if ((paddr = virt_to_phys_060(addr))) + break; + if (len <= i) + return 0; + len -= i; + addr += PAGE_SIZE; + } + } + else + paddr += 16; + } + break; + + default: + case FLUSH_SCOPE_PAGE: + len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1); + addr &= PAGE_MASK; /* Workaround for bug in some + revisions of the 68060 */ + for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE) + { + if (!(paddr = virt_to_phys_060(addr))) + continue; + switch (cache) + { + case FLUSH_CACHE_DATA: + __asm__ __volatile__ (".chip 68060\n\t" + "cpushp %%dc,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + case FLUSH_CACHE_INSN: + __asm__ __volatile__ (".chip 68060\n\t" + "cpushp %%ic,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + default: + case FLUSH_CACHE_BOTH: + __asm__ __volatile__ (".chip 68060\n\t" + "cpushp %%bc,(%0)\n\t" + ".chip 68k" + : : "a" (paddr)); + break; + } + } + break; + } + return 0; +} + +/* sys_cacheflush -- flush (part of) the processor cache. */ +asmlinkage int +sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) +{ + struct vm_area_struct *vma; + int ret = -EINVAL; + + if (scope < FLUSH_SCOPE_LINE || scope > FLUSH_SCOPE_ALL || + cache & ~FLUSH_CACHE_BOTH) + goto out; + + if (scope == FLUSH_SCOPE_ALL) { + /* Only the superuser may explicitly flush the whole cache. */ + ret = -EPERM; + if (!capable(CAP_SYS_ADMIN)) + goto out; + } else { + /* + * Verify that the specified address region actually belongs + * to this process. + */ + vma = find_vma (current->mm, addr); + ret = -EINVAL; + /* Check for overflow. */ + if (addr + len < addr) + goto out; + if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end) + goto out; + } + + if (CPU_IS_020_OR_030) { + if (scope == FLUSH_SCOPE_LINE && len < 256) { + unsigned long cacr; + __asm__ ("movec %%cacr, %0" : "=r" (cacr)); + if (cache & FLUSH_CACHE_INSN) + cacr |= 4; + if (cache & FLUSH_CACHE_DATA) + cacr |= 0x400; + len >>= 2; + while (len--) { + __asm__ __volatile__ ("movec %1, %%caar\n\t" + "movec %0, %%cacr" + : /* no outputs */ + : "r" (cacr), "r" (addr)); + addr += 4; + } + } else { + /* Flush the whole cache, even if page granularity requested. */ + unsigned long cacr; + __asm__ ("movec %%cacr, %0" : "=r" (cacr)); + if (cache & FLUSH_CACHE_INSN) + cacr |= 8; + if (cache & FLUSH_CACHE_DATA) + cacr |= 0x800; + __asm__ __volatile__ ("movec %0, %%cacr" : : "r" (cacr)); + } + ret = 0; + goto out; + } else { + /* + * 040 or 060: don't blindly trust 'scope', someone could + * try to flush a few megs of memory. + */ + + if (len>=3*PAGE_SIZE && scope<FLUSH_SCOPE_PAGE) + scope=FLUSH_SCOPE_PAGE; + if (len>=10*PAGE_SIZE && scope<FLUSH_SCOPE_ALL) + scope=FLUSH_SCOPE_ALL; + if (CPU_IS_040) { + ret = cache_flush_040 (addr, scope, cache, len); + } else if (CPU_IS_060) { + ret = cache_flush_060 (addr, scope, cache, len); + } + } +out: + return ret; +} + +asmlinkage int sys_getpagesize(void) +{ + return PAGE_SIZE; +} + +/* + * Do a system call from kernel instead of calling sys_execve so we + * end up with proper pt_regs. + */ +int kernel_execve(const char *filename, + const char *const argv[], + const char *const envp[]) +{ + register long __res asm ("%d0") = __NR_execve; + register long __a asm ("%d1") = (long)(filename); + register long __b asm ("%d2") = (long)(argv); + register long __c asm ("%d3") = (long)(envp); + asm volatile ("trap #0" : "+d" (__res) + : "d" (__a), "d" (__b), "d" (__c)); + return __res; +} + +asmlinkage unsigned long sys_get_thread_area(void) +{ + return current_thread_info()->tp_value; +} + +asmlinkage int sys_set_thread_area(unsigned long tp) +{ + current_thread_info()->tp_value = tp; + return 0; +} + +/* This syscall gets its arguments in A0 (mem), D2 (oldval) and + D1 (newval). */ +asmlinkage int +sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, + unsigned long __user * mem) +{ + /* This was borrowed from ARM's implementation. */ + for (;;) { + struct mm_struct *mm = current->mm; + pgd_t *pgd; + pmd_t *pmd; + pte_t *pte; + spinlock_t *ptl; + unsigned long mem_value; + + down_read(&mm->mmap_sem); + pgd = pgd_offset(mm, (unsigned long)mem); + if (!pgd_present(*pgd)) + goto bad_access; + pmd = pmd_offset(pgd, (unsigned long)mem); + if (!pmd_present(*pmd)) + goto bad_access; + pte = pte_offset_map_lock(mm, pmd, (unsigned long)mem, &ptl); + if (!pte_present(*pte) || !pte_dirty(*pte) + || !pte_write(*pte)) { + pte_unmap_unlock(pte, ptl); + goto bad_access; + } + + mem_value = *mem; + if (mem_value == oldval) + *mem = newval; + + pte_unmap_unlock(pte, ptl); + up_read(&mm->mmap_sem); + return mem_value; + + bad_access: + up_read(&mm->mmap_sem); + /* This is not necessarily a bad access, we can get here if + a memory we're trying to write to should be copied-on-write. + Make the kernel do the necessary page stuff, then re-iterate. + Simulate a write access fault to do that. */ + { + /* The first argument of the function corresponds to + D1, which is the first field of struct pt_regs. */ + struct pt_regs *fp = (struct pt_regs *)&newval; + + /* '3' is an RMW flag. */ + if (do_page_fault(fp, (unsigned long)mem, 3)) + /* If the do_page_fault() failed, we don't + have anything meaningful to return. + There should be a SIGSEGV pending for + the process. */ + return 0xdeadbeef; + } + } +} + +asmlinkage int sys_atomic_barrier(void) +{ + /* no code needed for uniprocs */ + return 0; +} diff --git a/arch/m68k/kernel/sys_m68k_no.c b/arch/m68k/kernel/sys_m68k_no.c new file mode 100644 index 000000000000..68488ae47f0a --- /dev/null +++ b/arch/m68k/kernel/sys_m68k_no.c @@ -0,0 +1,94 @@ +/* + * linux/arch/m68knommu/kernel/sys_m68k.c + * + * This file contains various random system calls that + * have a non-standard calling sequence on the Linux/m68k + * platform. + */ + +#include <linux/errno.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/smp.h> +#include <linux/sem.h> +#include <linux/msg.h> +#include <linux/shm.h> +#include <linux/stat.h> +#include <linux/syscalls.h> +#include <linux/mman.h> +#include <linux/file.h> +#include <linux/ipc.h> +#include <linux/fs.h> + +#include <asm/setup.h> +#include <asm/uaccess.h> +#include <asm/cachectl.h> +#include <asm/traps.h> +#include <asm/cacheflush.h> +#include <asm/unistd.h> + +/* sys_cacheflush -- flush (part of) the processor cache. */ +asmlinkage int +sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) +{ + flush_cache_all(); + return(0); +} + +asmlinkage int sys_getpagesize(void) +{ + return PAGE_SIZE; +} + +/* + * Do a system call from kernel instead of calling sys_execve so we + * end up with proper pt_regs. + */ +int kernel_execve(const char *filename, + const char *const argv[], + const char *const envp[]) +{ + register long __res asm ("%d0") = __NR_execve; + register long __a asm ("%d1") = (long)(filename); + register long __b asm ("%d2") = (long)(argv); + register long __c asm ("%d3") = (long)(envp); + asm volatile ("trap #0" : "+d" (__res) + : "d" (__a), "d" (__b), "d" (__c)); + return __res; +} + +asmlinkage unsigned long sys_get_thread_area(void) +{ + return current_thread_info()->tp_value; +} + +asmlinkage int sys_set_thread_area(unsigned long tp) +{ + current_thread_info()->tp_value = tp; + return 0; +} + +/* This syscall gets its arguments in A0 (mem), D2 (oldval) and + D1 (newval). */ +asmlinkage int +sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, + unsigned long __user * mem) +{ + struct mm_struct *mm = current->mm; + unsigned long mem_value; + + down_read(&mm->mmap_sem); + + mem_value = *mem; + if (mem_value == oldval) + *mem = newval; + + up_read(&mm->mmap_sem); + return mem_value; +} + +asmlinkage int sys_atomic_barrier(void) +{ + /* no code needed for uniprocs */ + return 0; +} diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S new file mode 100644 index 000000000000..79b1ed198c07 --- /dev/null +++ b/arch/m68k/kernel/syscalltable.S @@ -0,0 +1,365 @@ +/* + * linux/arch/m68knommu/kernel/syscalltable.S + * + * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com) + * + * Based on older entry.S files, the following copyrights apply: + * + * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * Copyright (C) 2000 Lineo Inc. (www.lineo.com) + * Copyright (C) 1991, 1992 Linus Torvalds + */ + +#include <linux/sys.h> +#include <linux/linkage.h> +#include <asm/unistd.h> + +.text +ALIGN +ENTRY(sys_call_table) + .long sys_restart_syscall /* 0 - old "setup()" system call */ + .long sys_exit + .long sys_fork + .long sys_read + .long sys_write + .long sys_open /* 5 */ + .long sys_close + .long sys_waitpid + .long sys_creat + .long sys_link + .long sys_unlink /* 10 */ + .long sys_execve + .long sys_chdir + .long sys_time + .long sys_mknod + .long sys_chmod /* 15 */ + .long sys_chown16 + .long sys_ni_syscall /* old break syscall holder */ + .long sys_stat + .long sys_lseek + .long sys_getpid /* 20 */ + .long sys_mount + .long sys_oldumount + .long sys_setuid16 + .long sys_getuid16 + .long sys_stime /* 25 */ + .long sys_ptrace + .long sys_alarm + .long sys_fstat + .long sys_pause + .long sys_utime /* 30 */ + .long sys_ni_syscall /* old stty syscall holder */ + .long sys_ni_syscall /* old gtty syscall holder */ + .long sys_access + .long sys_nice + .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ + .long sys_sync + .long sys_kill + .long sys_rename + .long sys_mkdir + .long sys_rmdir /* 40 */ + .long sys_dup + .long sys_pipe + .long sys_times + .long sys_ni_syscall /* old prof syscall holder */ + .long sys_brk /* 45 */ + .long sys_setgid16 + .long sys_getgid16 + .long sys_signal + .long sys_geteuid16 + .long sys_getegid16 /* 50 */ + .long sys_acct + .long sys_umount /* recycled never used phys() */ + .long sys_ni_syscall /* old lock syscall holder */ + .long sys_ioctl + .long sys_fcntl /* 55 */ + .long sys_ni_syscall /* old mpx syscall holder */ + .long sys_setpgid + .long sys_ni_syscall /* old ulimit syscall holder */ + .long sys_ni_syscall + .long sys_umask /* 60 */ + .long sys_chroot + .long sys_ustat + .long sys_dup2 + .long sys_getppid + .long sys_getpgrp /* 65 */ + .long sys_setsid + .long sys_sigaction + .long sys_sgetmask + .long sys_ssetmask + .long sys_setreuid16 /* 70 */ + .long sys_setregid16 + .long sys_sigsuspend + .long sys_sigpending + .long sys_sethostname + .long sys_setrlimit /* 75 */ + .long sys_old_getrlimit + .long sys_getrusage + .long sys_gettimeofday + .long sys_settimeofday + .long sys_getgroups16 /* 80 */ + .long sys_setgroups16 + .long sys_old_select + .long sys_symlink + .long sys_lstat + .long sys_readlink /* 85 */ + .long sys_uselib + .long sys_ni_syscall /* sys_swapon */ + .long sys_reboot + .long sys_old_readdir + .long sys_old_mmap /* 90 */ + .long sys_munmap + .long sys_truncate + .long sys_ftruncate + .long sys_fchmod + .long sys_fchown16 /* 95 */ + .long sys_getpriority + .long sys_setpriority + .long sys_ni_syscall /* old profil syscall holder */ + .long sys_statfs + .long sys_fstatfs /* 100 */ + .long sys_ni_syscall /* ioperm for i386 */ + .long sys_socketcall + .long sys_syslog + .long sys_setitimer + .long sys_getitimer /* 105 */ + .long sys_newstat + .long sys_newlstat + .long sys_newfstat + .long sys_ni_syscall + .long sys_ni_syscall /* iopl for i386 */ /* 110 */ + .long sys_vhangup + .long sys_ni_syscall /* obsolete idle() syscall */ + .long sys_ni_syscall /* vm86old for i386 */ + .long sys_wait4 + .long sys_ni_syscall /* 115 */ /* sys_swapoff */ + .long sys_sysinfo + .long sys_ipc + .long sys_fsync + .long sys_sigreturn + .long sys_clone /* 120 */ + .long sys_setdomainname + .long sys_newuname + .long sys_cacheflush /* modify_ldt for i386 */ + .long sys_adjtimex + .long sys_ni_syscall /* 125 */ /* sys_mprotect */ + .long sys_sigprocmask + .long sys_ni_syscall /* old "creat_module" */ + .long sys_init_module + .long sys_delete_module + .long sys_ni_syscall /* 130: old "get_kernel_syms" */ + .long sys_quotactl + .long sys_getpgid + .long sys_fchdir + .long sys_bdflush + .long sys_sysfs /* 135 */ + .long sys_personality + .long sys_ni_syscall /* for afs_syscall */ + .long sys_setfsuid16 + .long sys_setfsgid16 + .long sys_llseek /* 140 */ + .long sys_getdents + .long sys_select + .long sys_flock + .long sys_ni_syscall /* sys_msync */ + .long sys_readv /* 145 */ + .long sys_writev + .long sys_getsid + .long sys_fdatasync + .long sys_sysctl + .long sys_ni_syscall /* 150 */ /* sys_mlock */ + .long sys_ni_syscall /* sys_munlock */ + .long sys_ni_syscall /* sys_mlockall */ + .long sys_ni_syscall /* sys_munlockall */ + .long sys_sched_setparam + .long sys_sched_getparam /* 155 */ + .long sys_sched_setscheduler + .long sys_sched_getscheduler + .long sys_sched_yield + .long sys_sched_get_priority_max + .long sys_sched_get_priority_min /* 160 */ + .long sys_sched_rr_get_interval + .long sys_nanosleep + .long sys_ni_syscall /* sys_mremap */ + .long sys_setresuid16 + .long sys_getresuid16 /* 165 */ + .long sys_getpagesize /* sys_getpagesize */ + .long sys_ni_syscall /* old "query_module" */ + .long sys_poll + .long sys_ni_syscall /* sys_nfsservctl */ + .long sys_setresgid16 /* 170 */ + .long sys_getresgid16 + .long sys_prctl + .long sys_rt_sigreturn + .long sys_rt_sigaction + .long sys_rt_sigprocmask /* 175 */ + .long sys_rt_sigpending + .long sys_rt_sigtimedwait + .long sys_rt_sigqueueinfo + .long sys_rt_sigsuspend + .long sys_pread64 /* 180 */ + .long sys_pwrite64 + .long sys_lchown16 + .long sys_getcwd + .long sys_capget + .long sys_capset /* 185 */ + .long sys_sigaltstack + .long sys_sendfile + .long sys_ni_syscall /* streams1 */ + .long sys_ni_syscall /* streams2 */ + .long sys_vfork /* 190 */ + .long sys_getrlimit + .long sys_mmap_pgoff + .long sys_truncate64 + .long sys_ftruncate64 + .long sys_stat64 /* 195 */ + .long sys_lstat64 + .long sys_fstat64 + .long sys_chown + .long sys_getuid + .long sys_getgid /* 200 */ + .long sys_geteuid + .long sys_getegid + .long sys_setreuid + .long sys_setregid + .long sys_getgroups /* 205 */ + .long sys_setgroups + .long sys_fchown + .long sys_setresuid + .long sys_getresuid + .long sys_setresgid /* 210 */ + .long sys_getresgid + .long sys_lchown + .long sys_setuid + .long sys_setgid + .long sys_setfsuid /* 215 */ + .long sys_setfsgid + .long sys_pivot_root + .long sys_ni_syscall + .long sys_ni_syscall + .long sys_getdents64 /* 220 */ + .long sys_gettid + .long sys_tkill + .long sys_setxattr + .long sys_lsetxattr + .long sys_fsetxattr /* 225 */ + .long sys_getxattr + .long sys_lgetxattr + .long sys_fgetxattr + .long sys_listxattr + .long sys_llistxattr /* 230 */ + .long sys_flistxattr + .long sys_removexattr + .long sys_lremovexattr + .long sys_fremovexattr + .long sys_futex /* 235 */ + .long sys_sendfile64 + .long sys_ni_syscall /* sys_mincore */ + .long sys_ni_syscall /* sys_madvise */ + .long sys_fcntl64 + .long sys_readahead /* 240 */ + .long sys_io_setup + .long sys_io_destroy + .long sys_io_getevents + .long sys_io_submit + .long sys_io_cancel /* 245 */ + .long sys_fadvise64 + .long sys_exit_group + .long sys_lookup_dcookie + .long sys_epoll_create + .long sys_epoll_ctl /* 250 */ + .long sys_epoll_wait + .long sys_ni_syscall /* sys_remap_file_pages */ + .long sys_set_tid_address + .long sys_timer_create + .long sys_timer_settime /* 255 */ + .long sys_timer_gettime + .long sys_timer_getoverrun + .long sys_timer_delete + .long sys_clock_settime + .long sys_clock_gettime /* 260 */ + .long sys_clock_getres + .long sys_clock_nanosleep + .long sys_statfs64 + .long sys_fstatfs64 + .long sys_tgkill /* 265 */ + .long sys_utimes + .long sys_fadvise64_64 + .long sys_mbind + .long sys_get_mempolicy + .long sys_set_mempolicy /* 270 */ + .long sys_mq_open + .long sys_mq_unlink + .long sys_mq_timedsend + .long sys_mq_timedreceive + .long sys_mq_notify /* 275 */ + .long sys_mq_getsetattr + .long sys_waitid + .long sys_ni_syscall /* for sys_vserver */ + .long sys_add_key + .long sys_request_key /* 280 */ + .long sys_keyctl + .long sys_ioprio_set + .long sys_ioprio_get + .long sys_inotify_init + .long sys_inotify_add_watch /* 285 */ + .long sys_inotify_rm_watch + .long sys_migrate_pages + .long sys_openat + .long sys_mkdirat + .long sys_mknodat /* 290 */ + .long sys_fchownat + .long sys_futimesat + .long sys_fstatat64 + .long sys_unlinkat + .long sys_renameat /* 295 */ + .long sys_linkat + .long sys_symlinkat + .long sys_readlinkat + .long sys_fchmodat + .long sys_faccessat /* 300 */ + .long sys_ni_syscall /* Reserved for pselect6 */ + .long sys_ni_syscall /* Reserved for ppoll */ + .long sys_unshare + .long sys_set_robust_list + .long sys_get_robust_list /* 305 */ + .long sys_splice + .long sys_sync_file_range + .long sys_tee + .long sys_vmsplice + .long sys_move_pages /* 310 */ + .long sys_sched_setaffinity + .long sys_sched_getaffinity + .long sys_kexec_load + .long sys_getcpu + .long sys_epoll_pwait /* 315 */ + .long sys_utimensat + .long sys_signalfd + .long sys_timerfd_create + .long sys_eventfd + .long sys_fallocate /* 320 */ + .long sys_timerfd_settime + .long sys_timerfd_gettime + .long sys_signalfd4 + .long sys_eventfd2 + .long sys_epoll_create1 /* 325 */ + .long sys_dup3 + .long sys_pipe2 + .long sys_inotify_init1 + .long sys_preadv + .long sys_pwritev /* 330 */ + .long sys_rt_tgsigqueueinfo + .long sys_perf_event_open + .long sys_get_thread_area + .long sys_set_thread_area + .long sys_atomic_cmpxchg_32 /* 335 */ + .long sys_atomic_barrier + .long sys_fanotify_init + .long sys_fanotify_mark + .long sys_prlimit64 + + .rept NR_syscalls-(.-sys_call_table)/4 + .long sys_ni_syscall + .endr + diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index 18b34ee5db3b..a5cf40c26de5 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -1,114 +1,5 @@ -/* - * linux/arch/m68k/kernel/time.c - * - * Copyright (C) 1991, 1992, 1995 Linus Torvalds - * - * This file contains the m68k-specific time handling details. - * Most of the stuff is located in the machine specific files. - * - * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 - * "A Kernel Model for Precision Timekeeping" by Dave Mills - */ - -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/rtc.h> -#include <linux/platform_device.h> - -#include <asm/machdep.h> -#include <asm/io.h> -#include <asm/irq_regs.h> - -#include <linux/time.h> -#include <linux/timex.h> -#include <linux/profile.h> - -static inline int set_rtc_mmss(unsigned long nowtime) -{ - if (mach_set_clock_mmss) - return mach_set_clock_mmss (nowtime); - return -1; -} - -/* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "xtime_update()" routine every clocktick - */ -static irqreturn_t timer_interrupt(int irq, void *dummy) -{ - xtime_update(1); - update_process_times(user_mode(get_irq_regs())); - profile_tick(CPU_PROFILING); - -#ifdef CONFIG_HEARTBEAT - /* use power LED as a heartbeat instead -- much more useful - for debugging -- based on the version for PReP by Cort */ - /* acts like an actual heart beat -- ie thump-thump-pause... */ - if (mach_heartbeat) { - static unsigned cnt = 0, period = 0, dist = 0; - - if (cnt == 0 || cnt == dist) - mach_heartbeat( 1 ); - else if (cnt == 7 || cnt == dist+7) - mach_heartbeat( 0 ); - - if (++cnt > period) { - cnt = 0; - /* The hyperbolic function below modifies the heartbeat period - * length in dependency of the current (5min) load. It goes - * through the points f(0)=126, f(1)=86, f(5)=51, - * f(inf)->30. */ - period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; - dist = period / 4; - } - } -#endif /* CONFIG_HEARTBEAT */ - return IRQ_HANDLED; -} - -void read_persistent_clock(struct timespec *ts) -{ - struct rtc_time time; - ts->tv_sec = 0; - ts->tv_nsec = 0; - - if (mach_hwclk) { - mach_hwclk(0, &time); - - if ((time.tm_year += 1900) < 1970) - time.tm_year += 100; - ts->tv_sec = mktime(time.tm_year, time.tm_mon, time.tm_mday, - time.tm_hour, time.tm_min, time.tm_sec); - } -} - -void __init time_init(void) -{ - mach_sched_init(timer_interrupt); -} - -u32 arch_gettimeoffset(void) -{ - return mach_gettimeoffset() * 1000; -} - -static int __init rtc_init(void) -{ - struct platform_device *pdev; - - if (!mach_hwclk) - return -ENODEV; - - pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); - - return 0; -} - -module_init(rtc_init); +#ifdef CONFIG_MMU +#include "time_mm.c" +#else +#include "time_no.c" +#endif diff --git a/arch/m68k/kernel/time_mm.c b/arch/m68k/kernel/time_mm.c new file mode 100644 index 000000000000..18b34ee5db3b --- /dev/null +++ b/arch/m68k/kernel/time_mm.c @@ -0,0 +1,114 @@ +/* + * linux/arch/m68k/kernel/time.c + * + * Copyright (C) 1991, 1992, 1995 Linus Torvalds + * + * This file contains the m68k-specific time handling details. + * Most of the stuff is located in the machine specific files. + * + * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 + * "A Kernel Model for Precision Timekeeping" by Dave Mills + */ + +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/rtc.h> +#include <linux/platform_device.h> + +#include <asm/machdep.h> +#include <asm/io.h> +#include <asm/irq_regs.h> + +#include <linux/time.h> +#include <linux/timex.h> +#include <linux/profile.h> + +static inline int set_rtc_mmss(unsigned long nowtime) +{ + if (mach_set_clock_mmss) + return mach_set_clock_mmss (nowtime); + return -1; +} + +/* + * timer_interrupt() needs to keep up the real-time clock, + * as well as call the "xtime_update()" routine every clocktick + */ +static irqreturn_t timer_interrupt(int irq, void *dummy) +{ + xtime_update(1); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); + +#ifdef CONFIG_HEARTBEAT + /* use power LED as a heartbeat instead -- much more useful + for debugging -- based on the version for PReP by Cort */ + /* acts like an actual heart beat -- ie thump-thump-pause... */ + if (mach_heartbeat) { + static unsigned cnt = 0, period = 0, dist = 0; + + if (cnt == 0 || cnt == dist) + mach_heartbeat( 1 ); + else if (cnt == 7 || cnt == dist+7) + mach_heartbeat( 0 ); + + if (++cnt > period) { + cnt = 0; + /* The hyperbolic function below modifies the heartbeat period + * length in dependency of the current (5min) load. It goes + * through the points f(0)=126, f(1)=86, f(5)=51, + * f(inf)->30. */ + period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; + dist = period / 4; + } + } +#endif /* CONFIG_HEARTBEAT */ + return IRQ_HANDLED; +} + +void read_persistent_clock(struct timespec *ts) +{ + struct rtc_time time; + ts->tv_sec = 0; + ts->tv_nsec = 0; + + if (mach_hwclk) { + mach_hwclk(0, &time); + + if ((time.tm_year += 1900) < 1970) + time.tm_year += 100; + ts->tv_sec = mktime(time.tm_year, time.tm_mon, time.tm_mday, + time.tm_hour, time.tm_min, time.tm_sec); + } +} + +void __init time_init(void) +{ + mach_sched_init(timer_interrupt); +} + +u32 arch_gettimeoffset(void) +{ + return mach_gettimeoffset() * 1000; +} + +static int __init rtc_init(void) +{ + struct platform_device *pdev; + + if (!mach_hwclk) + return -ENODEV; + + pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + return 0; +} + +module_init(rtc_init); diff --git a/arch/m68k/kernel/time_no.c b/arch/m68k/kernel/time_no.c new file mode 100644 index 000000000000..6623909f70e6 --- /dev/null +++ b/arch/m68k/kernel/time_no.c @@ -0,0 +1,87 @@ +/* + * linux/arch/m68knommu/kernel/time.c + * + * Copyright (C) 1991, 1992, 1995 Linus Torvalds + * + * This file contains the m68k-specific time handling details. + * Most of the stuff is located in the machine specific files. + * + * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 + * "A Kernel Model for Precision Timekeeping" by Dave Mills + */ + +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/profile.h> +#include <linux/time.h> +#include <linux/timex.h> + +#include <asm/machdep.h> +#include <asm/irq_regs.h> + +#define TICK_SIZE (tick_nsec / 1000) + +static inline int set_rtc_mmss(unsigned long nowtime) +{ + if (mach_set_clock_mmss) + return mach_set_clock_mmss (nowtime); + return -1; +} + +#ifndef CONFIG_GENERIC_CLOCKEVENTS +/* + * timer_interrupt() needs to keep up the real-time clock, + * as well as call the "xtime_update()" routine every clocktick + */ +irqreturn_t arch_timer_interrupt(int irq, void *dummy) +{ + + if (current->pid) + profile_tick(CPU_PROFILING); + + xtime_update(1); + + update_process_times(user_mode(get_irq_regs())); + + return(IRQ_HANDLED); +} +#endif + +static unsigned long read_rtc_mmss(void) +{ + unsigned int year, mon, day, hour, min, sec; + + if (mach_gettod) { + mach_gettod(&year, &mon, &day, &hour, &min, &sec); + if ((year += 1900) < 1970) + year += 100; + } else { + year = 1970; + mon = day = 1; + hour = min = sec = 0; + } + + + return mktime(year, mon, day, hour, min, sec); +} + +void read_persistent_clock(struct timespec *ts) +{ + ts->tv_sec = read_rtc_mmss(); + ts->tv_nsec = 0; +} + +int update_persistent_clock(struct timespec now) +{ + return set_rtc_mmss(now.tv_sec); +} + +void time_init(void) +{ + hw_timer_init(); +} diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index 4022bbc28878..c98add3f5f0f 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -1,1207 +1,5 @@ -/* - * linux/arch/m68k/kernel/traps.c - * - * Copyright (C) 1993, 1994 by Hamish Macdonald - * - * 68040 fixes by Michael Rausch - * 68040 fixes by Martin Apel - * 68040 fixes and writeback by Richard Zidlicky - * 68060 fixes by Roman Hodek - * 68060 fixes by Jesper Skov - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/* - * Sets up all exception vectors - */ - -#include <linux/sched.h> -#include <linux/signal.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/user.h> -#include <linux/string.h> -#include <linux/linkage.h> -#include <linux/init.h> -#include <linux/ptrace.h> -#include <linux/kallsyms.h> - -#include <asm/setup.h> -#include <asm/fpu.h> -#include <asm/system.h> -#include <asm/uaccess.h> -#include <asm/traps.h> -#include <asm/pgalloc.h> -#include <asm/machdep.h> -#include <asm/siginfo.h> - -/* assembler routines */ -asmlinkage void system_call(void); -asmlinkage void buserr(void); -asmlinkage void trap(void); -asmlinkage void nmihandler(void); -#ifdef CONFIG_M68KFPU_EMU -asmlinkage void fpu_emu(void); -#endif - -e_vector vectors[256]; - -/* nmi handler for the Amiga */ -asm(".text\n" - __ALIGN_STR "\n" - "nmihandler: rte"); - -/* - * this must be called very early as the kernel might - * use some instruction that are emulated on the 060 - * and so we're prepared for early probe attempts (e.g. nf_init). - */ -void __init base_trap_init(void) -{ - if (MACH_IS_SUN3X) { - extern e_vector *sun3x_prom_vbr; - - __asm__ volatile ("movec %%vbr, %0" : "=r" (sun3x_prom_vbr)); - } - - /* setup the exception vector table */ - __asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)vectors)); - - if (CPU_IS_060) { - /* set up ISP entry points */ - asmlinkage void unimp_vec(void) asm ("_060_isp_unimp"); - - vectors[VEC_UNIMPII] = unimp_vec; - } - - vectors[VEC_BUSERR] = buserr; - vectors[VEC_ILLEGAL] = trap; - vectors[VEC_SYS] = system_call; -} - -void __init trap_init (void) -{ - int i; - - for (i = VEC_SPUR; i <= VEC_INT7; i++) - vectors[i] = bad_inthandler; - - for (i = 0; i < VEC_USER; i++) - if (!vectors[i]) - vectors[i] = trap; - - for (i = VEC_USER; i < 256; i++) - vectors[i] = bad_inthandler; - -#ifdef CONFIG_M68KFPU_EMU - if (FPU_IS_EMU) - vectors[VEC_LINE11] = fpu_emu; -#endif - - if (CPU_IS_040 && !FPU_IS_EMU) { - /* set up FPSP entry points */ - asmlinkage void dz_vec(void) asm ("dz"); - asmlinkage void inex_vec(void) asm ("inex"); - asmlinkage void ovfl_vec(void) asm ("ovfl"); - asmlinkage void unfl_vec(void) asm ("unfl"); - asmlinkage void snan_vec(void) asm ("snan"); - asmlinkage void operr_vec(void) asm ("operr"); - asmlinkage void bsun_vec(void) asm ("bsun"); - asmlinkage void fline_vec(void) asm ("fline"); - asmlinkage void unsupp_vec(void) asm ("unsupp"); - - vectors[VEC_FPDIVZ] = dz_vec; - vectors[VEC_FPIR] = inex_vec; - vectors[VEC_FPOVER] = ovfl_vec; - vectors[VEC_FPUNDER] = unfl_vec; - vectors[VEC_FPNAN] = snan_vec; - vectors[VEC_FPOE] = operr_vec; - vectors[VEC_FPBRUC] = bsun_vec; - vectors[VEC_LINE11] = fline_vec; - vectors[VEC_FPUNSUP] = unsupp_vec; - } - - if (CPU_IS_060 && !FPU_IS_EMU) { - /* set up IFPSP entry points */ - asmlinkage void snan_vec6(void) asm ("_060_fpsp_snan"); - asmlinkage void operr_vec6(void) asm ("_060_fpsp_operr"); - asmlinkage void ovfl_vec6(void) asm ("_060_fpsp_ovfl"); - asmlinkage void unfl_vec6(void) asm ("_060_fpsp_unfl"); - asmlinkage void dz_vec6(void) asm ("_060_fpsp_dz"); - asmlinkage void inex_vec6(void) asm ("_060_fpsp_inex"); - asmlinkage void fline_vec6(void) asm ("_060_fpsp_fline"); - asmlinkage void unsupp_vec6(void) asm ("_060_fpsp_unsupp"); - asmlinkage void effadd_vec6(void) asm ("_060_fpsp_effadd"); - - vectors[VEC_FPNAN] = snan_vec6; - vectors[VEC_FPOE] = operr_vec6; - vectors[VEC_FPOVER] = ovfl_vec6; - vectors[VEC_FPUNDER] = unfl_vec6; - vectors[VEC_FPDIVZ] = dz_vec6; - vectors[VEC_FPIR] = inex_vec6; - vectors[VEC_LINE11] = fline_vec6; - vectors[VEC_FPUNSUP] = unsupp_vec6; - vectors[VEC_UNIMPEA] = effadd_vec6; - } - - /* if running on an amiga, make the NMI interrupt do nothing */ - if (MACH_IS_AMIGA) { - vectors[VEC_INT7] = nmihandler; - } -} - - -static const char *vec_names[] = { - [VEC_RESETSP] = "RESET SP", - [VEC_RESETPC] = "RESET PC", - [VEC_BUSERR] = "BUS ERROR", - [VEC_ADDRERR] = "ADDRESS ERROR", - [VEC_ILLEGAL] = "ILLEGAL INSTRUCTION", - [VEC_ZERODIV] = "ZERO DIVIDE", - [VEC_CHK] = "CHK", - [VEC_TRAP] = "TRAPcc", - [VEC_PRIV] = "PRIVILEGE VIOLATION", - [VEC_TRACE] = "TRACE", - [VEC_LINE10] = "LINE 1010", - [VEC_LINE11] = "LINE 1111", - [VEC_RESV12] = "UNASSIGNED RESERVED 12", - [VEC_COPROC] = "COPROCESSOR PROTOCOL VIOLATION", - [VEC_FORMAT] = "FORMAT ERROR", - [VEC_UNINT] = "UNINITIALIZED INTERRUPT", - [VEC_RESV16] = "UNASSIGNED RESERVED 16", - [VEC_RESV17] = "UNASSIGNED RESERVED 17", - [VEC_RESV18] = "UNASSIGNED RESERVED 18", - [VEC_RESV19] = "UNASSIGNED RESERVED 19", - [VEC_RESV20] = "UNASSIGNED RESERVED 20", - [VEC_RESV21] = "UNASSIGNED RESERVED 21", - [VEC_RESV22] = "UNASSIGNED RESERVED 22", - [VEC_RESV23] = "UNASSIGNED RESERVED 23", - [VEC_SPUR] = "SPURIOUS INTERRUPT", - [VEC_INT1] = "LEVEL 1 INT", - [VEC_INT2] = "LEVEL 2 INT", - [VEC_INT3] = "LEVEL 3 INT", - [VEC_INT4] = "LEVEL 4 INT", - [VEC_INT5] = "LEVEL 5 INT", - [VEC_INT6] = "LEVEL 6 INT", - [VEC_INT7] = "LEVEL 7 INT", - [VEC_SYS] = "SYSCALL", - [VEC_TRAP1] = "TRAP #1", - [VEC_TRAP2] = "TRAP #2", - [VEC_TRAP3] = "TRAP #3", - [VEC_TRAP4] = "TRAP #4", - [VEC_TRAP5] = "TRAP #5", - [VEC_TRAP6] = "TRAP #6", - [VEC_TRAP7] = "TRAP #7", - [VEC_TRAP8] = "TRAP #8", - [VEC_TRAP9] = "TRAP #9", - [VEC_TRAP10] = "TRAP #10", - [VEC_TRAP11] = "TRAP #11", - [VEC_TRAP12] = "TRAP #12", - [VEC_TRAP13] = "TRAP #13", - [VEC_TRAP14] = "TRAP #14", - [VEC_TRAP15] = "TRAP #15", - [VEC_FPBRUC] = "FPCP BSUN", - [VEC_FPIR] = "FPCP INEXACT", - [VEC_FPDIVZ] = "FPCP DIV BY 0", - [VEC_FPUNDER] = "FPCP UNDERFLOW", - [VEC_FPOE] = "FPCP OPERAND ERROR", - [VEC_FPOVER] = "FPCP OVERFLOW", - [VEC_FPNAN] = "FPCP SNAN", - [VEC_FPUNSUP] = "FPCP UNSUPPORTED OPERATION", - [VEC_MMUCFG] = "MMU CONFIGURATION ERROR", - [VEC_MMUILL] = "MMU ILLEGAL OPERATION ERROR", - [VEC_MMUACC] = "MMU ACCESS LEVEL VIOLATION ERROR", - [VEC_RESV59] = "UNASSIGNED RESERVED 59", - [VEC_UNIMPEA] = "UNASSIGNED RESERVED 60", - [VEC_UNIMPII] = "UNASSIGNED RESERVED 61", - [VEC_RESV62] = "UNASSIGNED RESERVED 62", - [VEC_RESV63] = "UNASSIGNED RESERVED 63", -}; - -static const char *space_names[] = { - [0] = "Space 0", - [USER_DATA] = "User Data", - [USER_PROGRAM] = "User Program", -#ifndef CONFIG_SUN3 - [3] = "Space 3", +#ifdef CONFIG_MMU +#include "traps_mm.c" #else - [FC_CONTROL] = "Control", -#endif - [4] = "Space 4", - [SUPER_DATA] = "Super Data", - [SUPER_PROGRAM] = "Super Program", - [CPU_SPACE] = "CPU" -}; - -void die_if_kernel(char *,struct pt_regs *,int); -asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, - unsigned long error_code); -int send_fault_sig(struct pt_regs *regs); - -asmlinkage void trap_c(struct frame *fp); - -#if defined (CONFIG_M68060) -static inline void access_error060 (struct frame *fp) -{ - unsigned long fslw = fp->un.fmt4.pc; /* is really FSLW for access error */ - -#ifdef DEBUG - printk("fslw=%#lx, fa=%#lx\n", fslw, fp->un.fmt4.effaddr); -#endif - - if (fslw & MMU060_BPE) { - /* branch prediction error -> clear branch cache */ - __asm__ __volatile__ ("movec %/cacr,%/d0\n\t" - "orl #0x00400000,%/d0\n\t" - "movec %/d0,%/cacr" - : : : "d0" ); - /* return if there's no other error */ - if (!(fslw & MMU060_ERR_BITS) && !(fslw & MMU060_SEE)) - return; - } - - if (fslw & (MMU060_DESC_ERR | MMU060_WP | MMU060_SP)) { - unsigned long errorcode; - unsigned long addr = fp->un.fmt4.effaddr; - - if (fslw & MMU060_MA) - addr = (addr + PAGE_SIZE - 1) & PAGE_MASK; - - errorcode = 1; - if (fslw & MMU060_DESC_ERR) { - __flush_tlb040_one(addr); - errorcode = 0; - } - if (fslw & MMU060_W) - errorcode |= 2; -#ifdef DEBUG - printk("errorcode = %d\n", errorcode ); -#endif - do_page_fault(&fp->ptregs, addr, errorcode); - } else if (fslw & (MMU060_SEE)){ - /* Software Emulation Error. - * fault during mem_read/mem_write in ifpsp060/os.S - */ - send_fault_sig(&fp->ptregs); - } else if (!(fslw & (MMU060_RE|MMU060_WE)) || - send_fault_sig(&fp->ptregs) > 0) { - printk("pc=%#lx, fa=%#lx\n", fp->ptregs.pc, fp->un.fmt4.effaddr); - printk( "68060 access error, fslw=%lx\n", fslw ); - trap_c( fp ); - } -} -#endif /* CONFIG_M68060 */ - -#if defined (CONFIG_M68040) -static inline unsigned long probe040(int iswrite, unsigned long addr, int wbs) -{ - unsigned long mmusr; - mm_segment_t old_fs = get_fs(); - - set_fs(MAKE_MM_SEG(wbs)); - - if (iswrite) - asm volatile (".chip 68040; ptestw (%0); .chip 68k" : : "a" (addr)); - else - asm volatile (".chip 68040; ptestr (%0); .chip 68k" : : "a" (addr)); - - asm volatile (".chip 68040; movec %%mmusr,%0; .chip 68k" : "=r" (mmusr)); - - set_fs(old_fs); - - return mmusr; -} - -static inline int do_040writeback1(unsigned short wbs, unsigned long wba, - unsigned long wbd) -{ - int res = 0; - mm_segment_t old_fs = get_fs(); - - /* set_fs can not be moved, otherwise put_user() may oops */ - set_fs(MAKE_MM_SEG(wbs)); - - switch (wbs & WBSIZ_040) { - case BA_SIZE_BYTE: - res = put_user(wbd & 0xff, (char __user *)wba); - break; - case BA_SIZE_WORD: - res = put_user(wbd & 0xffff, (short __user *)wba); - break; - case BA_SIZE_LONG: - res = put_user(wbd, (int __user *)wba); - break; - } - - /* set_fs can not be moved, otherwise put_user() may oops */ - set_fs(old_fs); - - -#ifdef DEBUG - printk("do_040writeback1, res=%d\n",res); -#endif - - return res; -} - -/* after an exception in a writeback the stack frame corresponding - * to that exception is discarded, set a few bits in the old frame - * to simulate what it should look like - */ -static inline void fix_xframe040(struct frame *fp, unsigned long wba, unsigned short wbs) -{ - fp->un.fmt7.faddr = wba; - fp->un.fmt7.ssw = wbs & 0xff; - if (wba != current->thread.faddr) - fp->un.fmt7.ssw |= MA_040; -} - -static inline void do_040writebacks(struct frame *fp) -{ - int res = 0; -#if 0 - if (fp->un.fmt7.wb1s & WBV_040) - printk("access_error040: cannot handle 1st writeback. oops.\n"); -#endif - - if ((fp->un.fmt7.wb2s & WBV_040) && - !(fp->un.fmt7.wb2s & WBTT_040)) { - res = do_040writeback1(fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, - fp->un.fmt7.wb2d); - if (res) - fix_xframe040(fp, fp->un.fmt7.wb2a, fp->un.fmt7.wb2s); - else - fp->un.fmt7.wb2s = 0; - } - - /* do the 2nd wb only if the first one was successful (except for a kernel wb) */ - if (fp->un.fmt7.wb3s & WBV_040 && (!res || fp->un.fmt7.wb3s & 4)) { - res = do_040writeback1(fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, - fp->un.fmt7.wb3d); - if (res) - { - fix_xframe040(fp, fp->un.fmt7.wb3a, fp->un.fmt7.wb3s); - - fp->un.fmt7.wb2s = fp->un.fmt7.wb3s; - fp->un.fmt7.wb3s &= (~WBV_040); - fp->un.fmt7.wb2a = fp->un.fmt7.wb3a; - fp->un.fmt7.wb2d = fp->un.fmt7.wb3d; - } - else - fp->un.fmt7.wb3s = 0; - } - - if (res) - send_fault_sig(&fp->ptregs); -} - -/* - * called from sigreturn(), must ensure userspace code didn't - * manipulate exception frame to circumvent protection, then complete - * pending writebacks - * we just clear TM2 to turn it into a userspace access - */ -asmlinkage void berr_040cleanup(struct frame *fp) -{ - fp->un.fmt7.wb2s &= ~4; - fp->un.fmt7.wb3s &= ~4; - - do_040writebacks(fp); -} - -static inline void access_error040(struct frame *fp) -{ - unsigned short ssw = fp->un.fmt7.ssw; - unsigned long mmusr; - -#ifdef DEBUG - printk("ssw=%#x, fa=%#lx\n", ssw, fp->un.fmt7.faddr); - printk("wb1s=%#x, wb2s=%#x, wb3s=%#x\n", fp->un.fmt7.wb1s, - fp->un.fmt7.wb2s, fp->un.fmt7.wb3s); - printk ("wb2a=%lx, wb3a=%lx, wb2d=%lx, wb3d=%lx\n", - fp->un.fmt7.wb2a, fp->un.fmt7.wb3a, - fp->un.fmt7.wb2d, fp->un.fmt7.wb3d); -#endif - - if (ssw & ATC_040) { - unsigned long addr = fp->un.fmt7.faddr; - unsigned long errorcode; - - /* - * The MMU status has to be determined AFTER the address - * has been corrected if there was a misaligned access (MA). - */ - if (ssw & MA_040) - addr = (addr + 7) & -8; - - /* MMU error, get the MMUSR info for this access */ - mmusr = probe040(!(ssw & RW_040), addr, ssw); -#ifdef DEBUG - printk("mmusr = %lx\n", mmusr); -#endif - errorcode = 1; - if (!(mmusr & MMU_R_040)) { - /* clear the invalid atc entry */ - __flush_tlb040_one(addr); - errorcode = 0; - } - - /* despite what documentation seems to say, RMW - * accesses have always both the LK and RW bits set */ - if (!(ssw & RW_040) || (ssw & LK_040)) - errorcode |= 2; - - if (do_page_fault(&fp->ptregs, addr, errorcode)) { -#ifdef DEBUG - printk("do_page_fault() !=0\n"); -#endif - if (user_mode(&fp->ptregs)){ - /* delay writebacks after signal delivery */ -#ifdef DEBUG - printk(".. was usermode - return\n"); -#endif - return; - } - /* disable writeback into user space from kernel - * (if do_page_fault didn't fix the mapping, - * the writeback won't do good) - */ -disable_wb: -#ifdef DEBUG - printk(".. disabling wb2\n"); -#endif - if (fp->un.fmt7.wb2a == fp->un.fmt7.faddr) - fp->un.fmt7.wb2s &= ~WBV_040; - if (fp->un.fmt7.wb3a == fp->un.fmt7.faddr) - fp->un.fmt7.wb3s &= ~WBV_040; - } - } else { - /* In case of a bus error we either kill the process or expect - * the kernel to catch the fault, which then is also responsible - * for cleaning up the mess. - */ - current->thread.signo = SIGBUS; - current->thread.faddr = fp->un.fmt7.faddr; - if (send_fault_sig(&fp->ptregs) >= 0) - printk("68040 bus error (ssw=%x, faddr=%lx)\n", ssw, - fp->un.fmt7.faddr); - goto disable_wb; - } - - do_040writebacks(fp); -} -#endif /* CONFIG_M68040 */ - -#if defined(CONFIG_SUN3) -#include <asm/sun3mmu.h> - -extern int mmu_emu_handle_fault (unsigned long, int, int); - -/* sun3 version of bus_error030 */ - -static inline void bus_error030 (struct frame *fp) -{ - unsigned char buserr_type = sun3_get_buserr (); - unsigned long addr, errorcode; - unsigned short ssw = fp->un.fmtb.ssw; - extern unsigned long _sun3_map_test_start, _sun3_map_test_end; - -#ifdef DEBUG - if (ssw & (FC | FB)) - printk ("Instruction fault at %#010lx\n", - ssw & FC ? - fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2 - : - fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); - if (ssw & DF) - printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", - fp->un.fmtb.daddr, - space_names[ssw & DFC], fp->ptregs.pc); -#endif - - /* - * Check if this page should be demand-mapped. This needs to go before - * the testing for a bad kernel-space access (demand-mapping applies - * to kernel accesses too). - */ - - if ((ssw & DF) - && (buserr_type & (SUN3_BUSERR_PROTERR | SUN3_BUSERR_INVALID))) { - if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 0)) - return; - } - - /* Check for kernel-space pagefault (BAD). */ - if (fp->ptregs.sr & PS_S) { - /* kernel fault must be a data fault to user space */ - if (! ((ssw & DF) && ((ssw & DFC) == USER_DATA))) { - // try checking the kernel mappings before surrender - if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 1)) - return; - /* instruction fault or kernel data fault! */ - if (ssw & (FC | FB)) - printk ("Instruction fault at %#010lx\n", - fp->ptregs.pc); - if (ssw & DF) { - /* was this fault incurred testing bus mappings? */ - if((fp->ptregs.pc >= (unsigned long)&_sun3_map_test_start) && - (fp->ptregs.pc <= (unsigned long)&_sun3_map_test_end)) { - send_fault_sig(&fp->ptregs); - return; - } - - printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", - fp->un.fmtb.daddr, - space_names[ssw & DFC], fp->ptregs.pc); - } - printk ("BAD KERNEL BUSERR\n"); - - die_if_kernel("Oops", &fp->ptregs,0); - force_sig(SIGKILL, current); - return; - } - } else { - /* user fault */ - if (!(ssw & (FC | FB)) && !(ssw & DF)) - /* not an instruction fault or data fault! BAD */ - panic ("USER BUSERR w/o instruction or data fault"); - } - - - /* First handle the data fault, if any. */ - if (ssw & DF) { - addr = fp->un.fmtb.daddr; - -// errorcode bit 0: 0 -> no page 1 -> protection fault -// errorcode bit 1: 0 -> read fault 1 -> write fault - -// (buserr_type & SUN3_BUSERR_PROTERR) -> protection fault -// (buserr_type & SUN3_BUSERR_INVALID) -> invalid page fault - - if (buserr_type & SUN3_BUSERR_PROTERR) - errorcode = 0x01; - else if (buserr_type & SUN3_BUSERR_INVALID) - errorcode = 0x00; - else { -#ifdef DEBUG - printk ("*** unexpected busfault type=%#04x\n", buserr_type); - printk ("invalid %s access at %#lx from pc %#lx\n", - !(ssw & RW) ? "write" : "read", addr, - fp->ptregs.pc); -#endif - die_if_kernel ("Oops", &fp->ptregs, buserr_type); - force_sig (SIGBUS, current); - return; - } - -//todo: wtf is RM bit? --m - if (!(ssw & RW) || ssw & RM) - errorcode |= 0x02; - - /* Handle page fault. */ - do_page_fault (&fp->ptregs, addr, errorcode); - - /* Retry the data fault now. */ - return; - } - - /* Now handle the instruction fault. */ - - /* Get the fault address. */ - if (fp->ptregs.format == 0xA) - addr = fp->ptregs.pc + 4; - else - addr = fp->un.fmtb.baddr; - if (ssw & FC) - addr -= 2; - - if (buserr_type & SUN3_BUSERR_INVALID) { - if (!mmu_emu_handle_fault (fp->un.fmtb.daddr, 1, 0)) - do_page_fault (&fp->ptregs, addr, 0); - } else { -#ifdef DEBUG - printk ("protection fault on insn access (segv).\n"); -#endif - force_sig (SIGSEGV, current); - } -} -#else -#if defined(CPU_M68020_OR_M68030) -static inline void bus_error030 (struct frame *fp) -{ - volatile unsigned short temp; - unsigned short mmusr; - unsigned long addr, errorcode; - unsigned short ssw = fp->un.fmtb.ssw; -#ifdef DEBUG - unsigned long desc; - - printk ("pid = %x ", current->pid); - printk ("SSW=%#06x ", ssw); - - if (ssw & (FC | FB)) - printk ("Instruction fault at %#010lx\n", - ssw & FC ? - fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2 - : - fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); - if (ssw & DF) - printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", - fp->un.fmtb.daddr, - space_names[ssw & DFC], fp->ptregs.pc); -#endif - - /* ++andreas: If a data fault and an instruction fault happen - at the same time map in both pages. */ - - /* First handle the data fault, if any. */ - if (ssw & DF) { - addr = fp->un.fmtb.daddr; - -#ifdef DEBUG - asm volatile ("ptestr %3,%2@,#7,%0\n\t" - "pmove %%psr,%1@" - : "=a&" (desc) - : "a" (&temp), "a" (addr), "d" (ssw)); -#else - asm volatile ("ptestr %2,%1@,#7\n\t" - "pmove %%psr,%0@" - : : "a" (&temp), "a" (addr), "d" (ssw)); -#endif - mmusr = temp; - -#ifdef DEBUG - printk("mmusr is %#x for addr %#lx in task %p\n", - mmusr, addr, current); - printk("descriptor address is %#lx, contents %#lx\n", - __va(desc), *(unsigned long *)__va(desc)); -#endif - - errorcode = (mmusr & MMU_I) ? 0 : 1; - if (!(ssw & RW) || (ssw & RM)) - errorcode |= 2; - - if (mmusr & (MMU_I | MMU_WP)) { - if (ssw & 4) { - printk("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", - fp->un.fmtb.daddr, - space_names[ssw & DFC], fp->ptregs.pc); - goto buserr; - } - /* Don't try to do anything further if an exception was - handled. */ - if (do_page_fault (&fp->ptregs, addr, errorcode) < 0) - return; - } else if (!(mmusr & MMU_I)) { - /* probably a 020 cas fault */ - if (!(ssw & RM) && send_fault_sig(&fp->ptregs) > 0) - printk("unexpected bus error (%#x,%#x)\n", ssw, mmusr); - } else if (mmusr & (MMU_B|MMU_L|MMU_S)) { - printk("invalid %s access at %#lx from pc %#lx\n", - !(ssw & RW) ? "write" : "read", addr, - fp->ptregs.pc); - die_if_kernel("Oops",&fp->ptregs,mmusr); - force_sig(SIGSEGV, current); - return; - } else { -#if 0 - static volatile long tlong; -#endif - - printk("weird %s access at %#lx from pc %#lx (ssw is %#x)\n", - !(ssw & RW) ? "write" : "read", addr, - fp->ptregs.pc, ssw); - asm volatile ("ptestr #1,%1@,#0\n\t" - "pmove %%psr,%0@" - : /* no outputs */ - : "a" (&temp), "a" (addr)); - mmusr = temp; - - printk ("level 0 mmusr is %#x\n", mmusr); -#if 0 - asm volatile ("pmove %%tt0,%0@" - : /* no outputs */ - : "a" (&tlong)); - printk("tt0 is %#lx, ", tlong); - asm volatile ("pmove %%tt1,%0@" - : /* no outputs */ - : "a" (&tlong)); - printk("tt1 is %#lx\n", tlong); -#endif -#ifdef DEBUG - printk("Unknown SIGSEGV - 1\n"); -#endif - die_if_kernel("Oops",&fp->ptregs,mmusr); - force_sig(SIGSEGV, current); - return; - } - - /* setup an ATC entry for the access about to be retried */ - if (!(ssw & RW) || (ssw & RM)) - asm volatile ("ploadw %1,%0@" : /* no outputs */ - : "a" (addr), "d" (ssw)); - else - asm volatile ("ploadr %1,%0@" : /* no outputs */ - : "a" (addr), "d" (ssw)); - } - - /* Now handle the instruction fault. */ - - if (!(ssw & (FC|FB))) - return; - - if (fp->ptregs.sr & PS_S) { - printk("Instruction fault at %#010lx\n", - fp->ptregs.pc); - buserr: - printk ("BAD KERNEL BUSERR\n"); - die_if_kernel("Oops",&fp->ptregs,0); - force_sig(SIGKILL, current); - return; - } - - /* get the fault address */ - if (fp->ptregs.format == 10) - addr = fp->ptregs.pc + 4; - else - addr = fp->un.fmtb.baddr; - if (ssw & FC) - addr -= 2; - - if ((ssw & DF) && ((addr ^ fp->un.fmtb.daddr) & PAGE_MASK) == 0) - /* Insn fault on same page as data fault. But we - should still create the ATC entry. */ - goto create_atc_entry; - -#ifdef DEBUG - asm volatile ("ptestr #1,%2@,#7,%0\n\t" - "pmove %%psr,%1@" - : "=a&" (desc) - : "a" (&temp), "a" (addr)); -#else - asm volatile ("ptestr #1,%1@,#7\n\t" - "pmove %%psr,%0@" - : : "a" (&temp), "a" (addr)); -#endif - mmusr = temp; - -#ifdef DEBUG - printk ("mmusr is %#x for addr %#lx in task %p\n", - mmusr, addr, current); - printk ("descriptor address is %#lx, contents %#lx\n", - __va(desc), *(unsigned long *)__va(desc)); -#endif - - if (mmusr & MMU_I) - do_page_fault (&fp->ptregs, addr, 0); - else if (mmusr & (MMU_B|MMU_L|MMU_S)) { - printk ("invalid insn access at %#lx from pc %#lx\n", - addr, fp->ptregs.pc); -#ifdef DEBUG - printk("Unknown SIGSEGV - 2\n"); -#endif - die_if_kernel("Oops",&fp->ptregs,mmusr); - force_sig(SIGSEGV, current); - return; - } - -create_atc_entry: - /* setup an ATC entry for the access about to be retried */ - asm volatile ("ploadr #2,%0@" : /* no outputs */ - : "a" (addr)); -} -#endif /* CPU_M68020_OR_M68030 */ -#endif /* !CONFIG_SUN3 */ - -asmlinkage void buserr_c(struct frame *fp) -{ - /* Only set esp0 if coming from user mode */ - if (user_mode(&fp->ptregs)) - current->thread.esp0 = (unsigned long) fp; - -#ifdef DEBUG - printk ("*** Bus Error *** Format is %x\n", fp->ptregs.format); -#endif - - switch (fp->ptregs.format) { -#if defined (CONFIG_M68060) - case 4: /* 68060 access error */ - access_error060 (fp); - break; -#endif -#if defined (CONFIG_M68040) - case 0x7: /* 68040 access error */ - access_error040 (fp); - break; -#endif -#if defined (CPU_M68020_OR_M68030) - case 0xa: - case 0xb: - bus_error030 (fp); - break; -#endif - default: - die_if_kernel("bad frame format",&fp->ptregs,0); -#ifdef DEBUG - printk("Unknown SIGSEGV - 4\n"); -#endif - force_sig(SIGSEGV, current); - } -} - - -static int kstack_depth_to_print = 48; - -void show_trace(unsigned long *stack) -{ - unsigned long *endstack; - unsigned long addr; - int i; - - printk("Call Trace:"); - addr = (unsigned long)stack + THREAD_SIZE - 1; - endstack = (unsigned long *)(addr & -THREAD_SIZE); - i = 0; - while (stack + 1 <= endstack) { - addr = *stack++; - /* - * If the address is either in the text segment of the - * kernel, or in the region which contains vmalloc'ed - * memory, it *may* be the address of a calling - * routine; if so, print it so that someone tracing - * down the cause of the crash will be able to figure - * out the call path that was taken. - */ - if (__kernel_text_address(addr)) { -#ifndef CONFIG_KALLSYMS - if (i % 5 == 0) - printk("\n "); -#endif - printk(" [<%08lx>] %pS\n", addr, (void *)addr); - i++; - } - } - printk("\n"); -} - -void show_registers(struct pt_regs *regs) -{ - struct frame *fp = (struct frame *)regs; - mm_segment_t old_fs = get_fs(); - u16 c, *cp; - unsigned long addr; - int i; - - print_modules(); - printk("PC: [<%08lx>] %pS\n", regs->pc, (void *)regs->pc); - printk("SR: %04x SP: %p a2: %08lx\n", regs->sr, regs, regs->a2); - printk("d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", - regs->d0, regs->d1, regs->d2, regs->d3); - printk("d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", - regs->d4, regs->d5, regs->a0, regs->a1); - - printk("Process %s (pid: %d, task=%p)\n", - current->comm, task_pid_nr(current), current); - addr = (unsigned long)&fp->un; - printk("Frame format=%X ", regs->format); - switch (regs->format) { - case 0x2: - printk("instr addr=%08lx\n", fp->un.fmt2.iaddr); - addr += sizeof(fp->un.fmt2); - break; - case 0x3: - printk("eff addr=%08lx\n", fp->un.fmt3.effaddr); - addr += sizeof(fp->un.fmt3); - break; - case 0x4: - printk((CPU_IS_060 ? "fault addr=%08lx fslw=%08lx\n" - : "eff addr=%08lx pc=%08lx\n"), - fp->un.fmt4.effaddr, fp->un.fmt4.pc); - addr += sizeof(fp->un.fmt4); - break; - case 0x7: - printk("eff addr=%08lx ssw=%04x faddr=%08lx\n", - fp->un.fmt7.effaddr, fp->un.fmt7.ssw, fp->un.fmt7.faddr); - printk("wb 1 stat/addr/data: %04x %08lx %08lx\n", - fp->un.fmt7.wb1s, fp->un.fmt7.wb1a, fp->un.fmt7.wb1dpd0); - printk("wb 2 stat/addr/data: %04x %08lx %08lx\n", - fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, fp->un.fmt7.wb2d); - printk("wb 3 stat/addr/data: %04x %08lx %08lx\n", - fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, fp->un.fmt7.wb3d); - printk("push data: %08lx %08lx %08lx %08lx\n", - fp->un.fmt7.wb1dpd0, fp->un.fmt7.pd1, fp->un.fmt7.pd2, - fp->un.fmt7.pd3); - addr += sizeof(fp->un.fmt7); - break; - case 0x9: - printk("instr addr=%08lx\n", fp->un.fmt9.iaddr); - addr += sizeof(fp->un.fmt9); - break; - case 0xa: - printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", - fp->un.fmta.ssw, fp->un.fmta.isc, fp->un.fmta.isb, - fp->un.fmta.daddr, fp->un.fmta.dobuf); - addr += sizeof(fp->un.fmta); - break; - case 0xb: - printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", - fp->un.fmtb.ssw, fp->un.fmtb.isc, fp->un.fmtb.isb, - fp->un.fmtb.daddr, fp->un.fmtb.dobuf); - printk("baddr=%08lx dibuf=%08lx ver=%x\n", - fp->un.fmtb.baddr, fp->un.fmtb.dibuf, fp->un.fmtb.ver); - addr += sizeof(fp->un.fmtb); - break; - default: - printk("\n"); - } - show_stack(NULL, (unsigned long *)addr); - - printk("Code:"); - set_fs(KERNEL_DS); - cp = (u16 *)regs->pc; - for (i = -8; i < 16; i++) { - if (get_user(c, cp + i) && i >= 0) { - printk(" Bad PC value."); - break; - } - printk(i ? " %04x" : " <%04x>", c); - } - set_fs(old_fs); - printk ("\n"); -} - -void show_stack(struct task_struct *task, unsigned long *stack) -{ - unsigned long *p; - unsigned long *endstack; - int i; - - if (!stack) { - if (task) - stack = (unsigned long *)task->thread.esp0; - else - stack = (unsigned long *)&stack; - } - endstack = (unsigned long *)(((unsigned long)stack + THREAD_SIZE - 1) & -THREAD_SIZE); - - printk("Stack from %08lx:", (unsigned long)stack); - p = stack; - for (i = 0; i < kstack_depth_to_print; i++) { - if (p + 1 > endstack) - break; - if (i % 8 == 0) - printk("\n "); - printk(" %08lx", *p++); - } - printk("\n"); - show_trace(stack); -} - -/* - * The architecture-independent backtrace generator - */ -void dump_stack(void) -{ - unsigned long stack; - - show_trace(&stack); -} - -EXPORT_SYMBOL(dump_stack); - -void bad_super_trap (struct frame *fp) -{ - console_verbose(); - if (fp->ptregs.vector < 4 * ARRAY_SIZE(vec_names)) - printk ("*** %s *** FORMAT=%X\n", - vec_names[(fp->ptregs.vector) >> 2], - fp->ptregs.format); - else - printk ("*** Exception %d *** FORMAT=%X\n", - (fp->ptregs.vector) >> 2, - fp->ptregs.format); - if (fp->ptregs.vector >> 2 == VEC_ADDRERR && CPU_IS_020_OR_030) { - unsigned short ssw = fp->un.fmtb.ssw; - - printk ("SSW=%#06x ", ssw); - - if (ssw & RC) - printk ("Pipe stage C instruction fault at %#010lx\n", - (fp->ptregs.format) == 0xA ? - fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2); - if (ssw & RB) - printk ("Pipe stage B instruction fault at %#010lx\n", - (fp->ptregs.format) == 0xA ? - fp->ptregs.pc + 4 : fp->un.fmtb.baddr); - if (ssw & DF) - printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", - ssw & RW ? "read" : "write", - fp->un.fmtb.daddr, space_names[ssw & DFC], - fp->ptregs.pc); - } - printk ("Current process id is %d\n", task_pid_nr(current)); - die_if_kernel("BAD KERNEL TRAP", &fp->ptregs, 0); -} - -asmlinkage void trap_c(struct frame *fp) -{ - int sig; - siginfo_t info; - - if (fp->ptregs.sr & PS_S) { - if (fp->ptregs.vector == VEC_TRACE << 2) { - /* traced a trapping instruction on a 68020/30, - * real exception will be executed afterwards. - */ - } else if (!handle_kernel_fault(&fp->ptregs)) - bad_super_trap(fp); - return; - } - - /* send the appropriate signal to the user program */ - switch ((fp->ptregs.vector) >> 2) { - case VEC_ADDRERR: - info.si_code = BUS_ADRALN; - sig = SIGBUS; - break; - case VEC_ILLEGAL: - case VEC_LINE10: - case VEC_LINE11: - info.si_code = ILL_ILLOPC; - sig = SIGILL; - break; - case VEC_PRIV: - info.si_code = ILL_PRVOPC; - sig = SIGILL; - break; - case VEC_COPROC: - info.si_code = ILL_COPROC; - sig = SIGILL; - break; - case VEC_TRAP1: - case VEC_TRAP2: - case VEC_TRAP3: - case VEC_TRAP4: - case VEC_TRAP5: - case VEC_TRAP6: - case VEC_TRAP7: - case VEC_TRAP8: - case VEC_TRAP9: - case VEC_TRAP10: - case VEC_TRAP11: - case VEC_TRAP12: - case VEC_TRAP13: - case VEC_TRAP14: - info.si_code = ILL_ILLTRP; - sig = SIGILL; - break; - case VEC_FPBRUC: - case VEC_FPOE: - case VEC_FPNAN: - info.si_code = FPE_FLTINV; - sig = SIGFPE; - break; - case VEC_FPIR: - info.si_code = FPE_FLTRES; - sig = SIGFPE; - break; - case VEC_FPDIVZ: - info.si_code = FPE_FLTDIV; - sig = SIGFPE; - break; - case VEC_FPUNDER: - info.si_code = FPE_FLTUND; - sig = SIGFPE; - break; - case VEC_FPOVER: - info.si_code = FPE_FLTOVF; - sig = SIGFPE; - break; - case VEC_ZERODIV: - info.si_code = FPE_INTDIV; - sig = SIGFPE; - break; - case VEC_CHK: - case VEC_TRAP: - info.si_code = FPE_INTOVF; - sig = SIGFPE; - break; - case VEC_TRACE: /* ptrace single step */ - info.si_code = TRAP_TRACE; - sig = SIGTRAP; - break; - case VEC_TRAP15: /* breakpoint */ - info.si_code = TRAP_BRKPT; - sig = SIGTRAP; - break; - default: - info.si_code = ILL_ILLOPC; - sig = SIGILL; - break; - } - info.si_signo = sig; - info.si_errno = 0; - switch (fp->ptregs.format) { - default: - info.si_addr = (void *) fp->ptregs.pc; - break; - case 2: - info.si_addr = (void *) fp->un.fmt2.iaddr; - break; - case 7: - info.si_addr = (void *) fp->un.fmt7.effaddr; - break; - case 9: - info.si_addr = (void *) fp->un.fmt9.iaddr; - break; - case 10: - info.si_addr = (void *) fp->un.fmta.daddr; - break; - case 11: - info.si_addr = (void *) fp->un.fmtb.daddr; - break; - } - force_sig_info (sig, &info, current); -} - -void die_if_kernel (char *str, struct pt_regs *fp, int nr) -{ - if (!(fp->sr & PS_S)) - return; - - console_verbose(); - printk("%s: %08x\n",str,nr); - show_registers(fp); - add_taint(TAINT_DIE); - do_exit(SIGSEGV); -} - -/* - * This function is called if an error occur while accessing - * user-space from the fpsp040 code. - */ -asmlinkage void fpsp040_die(void) -{ - do_exit(SIGSEGV); -} - -#ifdef CONFIG_M68KFPU_EMU -asmlinkage void fpemu_signal(int signal, int code, void *addr) -{ - siginfo_t info; - - info.si_signo = signal; - info.si_errno = 0; - info.si_code = code; - info.si_addr = addr; - force_sig_info(signal, &info, current); -} +#include "traps_no.c" #endif diff --git a/arch/m68k/kernel/traps_mm.c b/arch/m68k/kernel/traps_mm.c new file mode 100644 index 000000000000..4022bbc28878 --- /dev/null +++ b/arch/m68k/kernel/traps_mm.c @@ -0,0 +1,1207 @@ +/* + * linux/arch/m68k/kernel/traps.c + * + * Copyright (C) 1993, 1994 by Hamish Macdonald + * + * 68040 fixes by Michael Rausch + * 68040 fixes by Martin Apel + * 68040 fixes and writeback by Richard Zidlicky + * 68060 fixes by Roman Hodek + * 68060 fixes by Jesper Skov + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +/* + * Sets up all exception vectors + */ + +#include <linux/sched.h> +#include <linux/signal.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/user.h> +#include <linux/string.h> +#include <linux/linkage.h> +#include <linux/init.h> +#include <linux/ptrace.h> +#include <linux/kallsyms.h> + +#include <asm/setup.h> +#include <asm/fpu.h> +#include <asm/system.h> +#include <asm/uaccess.h> +#include <asm/traps.h> +#include <asm/pgalloc.h> +#include <asm/machdep.h> +#include <asm/siginfo.h> + +/* assembler routines */ +asmlinkage void system_call(void); +asmlinkage void buserr(void); +asmlinkage void trap(void); +asmlinkage void nmihandler(void); +#ifdef CONFIG_M68KFPU_EMU +asmlinkage void fpu_emu(void); +#endif + +e_vector vectors[256]; + +/* nmi handler for the Amiga */ +asm(".text\n" + __ALIGN_STR "\n" + "nmihandler: rte"); + +/* + * this must be called very early as the kernel might + * use some instruction that are emulated on the 060 + * and so we're prepared for early probe attempts (e.g. nf_init). + */ +void __init base_trap_init(void) +{ + if (MACH_IS_SUN3X) { + extern e_vector *sun3x_prom_vbr; + + __asm__ volatile ("movec %%vbr, %0" : "=r" (sun3x_prom_vbr)); + } + + /* setup the exception vector table */ + __asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)vectors)); + + if (CPU_IS_060) { + /* set up ISP entry points */ + asmlinkage void unimp_vec(void) asm ("_060_isp_unimp"); + + vectors[VEC_UNIMPII] = unimp_vec; + } + + vectors[VEC_BUSERR] = buserr; + vectors[VEC_ILLEGAL] = trap; + vectors[VEC_SYS] = system_call; +} + +void __init trap_init (void) +{ + int i; + + for (i = VEC_SPUR; i <= VEC_INT7; i++) + vectors[i] = bad_inthandler; + + for (i = 0; i < VEC_USER; i++) + if (!vectors[i]) + vectors[i] = trap; + + for (i = VEC_USER; i < 256; i++) + vectors[i] = bad_inthandler; + +#ifdef CONFIG_M68KFPU_EMU + if (FPU_IS_EMU) + vectors[VEC_LINE11] = fpu_emu; +#endif + + if (CPU_IS_040 && !FPU_IS_EMU) { + /* set up FPSP entry points */ + asmlinkage void dz_vec(void) asm ("dz"); + asmlinkage void inex_vec(void) asm ("inex"); + asmlinkage void ovfl_vec(void) asm ("ovfl"); + asmlinkage void unfl_vec(void) asm ("unfl"); + asmlinkage void snan_vec(void) asm ("snan"); + asmlinkage void operr_vec(void) asm ("operr"); + asmlinkage void bsun_vec(void) asm ("bsun"); + asmlinkage void fline_vec(void) asm ("fline"); + asmlinkage void unsupp_vec(void) asm ("unsupp"); + + vectors[VEC_FPDIVZ] = dz_vec; + vectors[VEC_FPIR] = inex_vec; + vectors[VEC_FPOVER] = ovfl_vec; + vectors[VEC_FPUNDER] = unfl_vec; + vectors[VEC_FPNAN] = snan_vec; + vectors[VEC_FPOE] = operr_vec; + vectors[VEC_FPBRUC] = bsun_vec; + vectors[VEC_LINE11] = fline_vec; + vectors[VEC_FPUNSUP] = unsupp_vec; + } + + if (CPU_IS_060 && !FPU_IS_EMU) { + /* set up IFPSP entry points */ + asmlinkage void snan_vec6(void) asm ("_060_fpsp_snan"); + asmlinkage void operr_vec6(void) asm ("_060_fpsp_operr"); + asmlinkage void ovfl_vec6(void) asm ("_060_fpsp_ovfl"); + asmlinkage void unfl_vec6(void) asm ("_060_fpsp_unfl"); + asmlinkage void dz_vec6(void) asm ("_060_fpsp_dz"); + asmlinkage void inex_vec6(void) asm ("_060_fpsp_inex"); + asmlinkage void fline_vec6(void) asm ("_060_fpsp_fline"); + asmlinkage void unsupp_vec6(void) asm ("_060_fpsp_unsupp"); + asmlinkage void effadd_vec6(void) asm ("_060_fpsp_effadd"); + + vectors[VEC_FPNAN] = snan_vec6; + vectors[VEC_FPOE] = operr_vec6; + vectors[VEC_FPOVER] = ovfl_vec6; + vectors[VEC_FPUNDER] = unfl_vec6; + vectors[VEC_FPDIVZ] = dz_vec6; + vectors[VEC_FPIR] = inex_vec6; + vectors[VEC_LINE11] = fline_vec6; + vectors[VEC_FPUNSUP] = unsupp_vec6; + vectors[VEC_UNIMPEA] = effadd_vec6; + } + + /* if running on an amiga, make the NMI interrupt do nothing */ + if (MACH_IS_AMIGA) { + vectors[VEC_INT7] = nmihandler; + } +} + + +static const char *vec_names[] = { + [VEC_RESETSP] = "RESET SP", + [VEC_RESETPC] = "RESET PC", + [VEC_BUSERR] = "BUS ERROR", + [VEC_ADDRERR] = "ADDRESS ERROR", + [VEC_ILLEGAL] = "ILLEGAL INSTRUCTION", + [VEC_ZERODIV] = "ZERO DIVIDE", + [VEC_CHK] = "CHK", + [VEC_TRAP] = "TRAPcc", + [VEC_PRIV] = "PRIVILEGE VIOLATION", + [VEC_TRACE] = "TRACE", + [VEC_LINE10] = "LINE 1010", + [VEC_LINE11] = "LINE 1111", + [VEC_RESV12] = "UNASSIGNED RESERVED 12", + [VEC_COPROC] = "COPROCESSOR PROTOCOL VIOLATION", + [VEC_FORMAT] = "FORMAT ERROR", + [VEC_UNINT] = "UNINITIALIZED INTERRUPT", + [VEC_RESV16] = "UNASSIGNED RESERVED 16", + [VEC_RESV17] = "UNASSIGNED RESERVED 17", + [VEC_RESV18] = "UNASSIGNED RESERVED 18", + [VEC_RESV19] = "UNASSIGNED RESERVED 19", + [VEC_RESV20] = "UNASSIGNED RESERVED 20", + [VEC_RESV21] = "UNASSIGNED RESERVED 21", + [VEC_RESV22] = "UNASSIGNED RESERVED 22", + [VEC_RESV23] = "UNASSIGNED RESERVED 23", + [VEC_SPUR] = "SPURIOUS INTERRUPT", + [VEC_INT1] = "LEVEL 1 INT", + [VEC_INT2] = "LEVEL 2 INT", + [VEC_INT3] = "LEVEL 3 INT", + [VEC_INT4] = "LEVEL 4 INT", + [VEC_INT5] = "LEVEL 5 INT", + [VEC_INT6] = "LEVEL 6 INT", + [VEC_INT7] = "LEVEL 7 INT", + [VEC_SYS] = "SYSCALL", + [VEC_TRAP1] = "TRAP #1", + [VEC_TRAP2] = "TRAP #2", + [VEC_TRAP3] = "TRAP #3", + [VEC_TRAP4] = "TRAP #4", + [VEC_TRAP5] = "TRAP #5", + [VEC_TRAP6] = "TRAP #6", + [VEC_TRAP7] = "TRAP #7", + [VEC_TRAP8] = "TRAP #8", + [VEC_TRAP9] = "TRAP #9", + [VEC_TRAP10] = "TRAP #10", + [VEC_TRAP11] = "TRAP #11", + [VEC_TRAP12] = "TRAP #12", + [VEC_TRAP13] = "TRAP #13", + [VEC_TRAP14] = "TRAP #14", + [VEC_TRAP15] = "TRAP #15", + [VEC_FPBRUC] = "FPCP BSUN", + [VEC_FPIR] = "FPCP INEXACT", + [VEC_FPDIVZ] = "FPCP DIV BY 0", + [VEC_FPUNDER] = "FPCP UNDERFLOW", + [VEC_FPOE] = "FPCP OPERAND ERROR", + [VEC_FPOVER] = "FPCP OVERFLOW", + [VEC_FPNAN] = "FPCP SNAN", + [VEC_FPUNSUP] = "FPCP UNSUPPORTED OPERATION", + [VEC_MMUCFG] = "MMU CONFIGURATION ERROR", + [VEC_MMUILL] = "MMU ILLEGAL OPERATION ERROR", + [VEC_MMUACC] = "MMU ACCESS LEVEL VIOLATION ERROR", + [VEC_RESV59] = "UNASSIGNED RESERVED 59", + [VEC_UNIMPEA] = "UNASSIGNED RESERVED 60", + [VEC_UNIMPII] = "UNASSIGNED RESERVED 61", + [VEC_RESV62] = "UNASSIGNED RESERVED 62", + [VEC_RESV63] = "UNASSIGNED RESERVED 63", +}; + +static const char *space_names[] = { + [0] = "Space 0", + [USER_DATA] = "User Data", + [USER_PROGRAM] = "User Program", +#ifndef CONFIG_SUN3 + [3] = "Space 3", +#else + [FC_CONTROL] = "Control", +#endif + [4] = "Space 4", + [SUPER_DATA] = "Super Data", + [SUPER_PROGRAM] = "Super Program", + [CPU_SPACE] = "CPU" +}; + +void die_if_kernel(char *,struct pt_regs *,int); +asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, + unsigned long error_code); +int send_fault_sig(struct pt_regs *regs); + +asmlinkage void trap_c(struct frame *fp); + +#if defined (CONFIG_M68060) +static inline void access_error060 (struct frame *fp) +{ + unsigned long fslw = fp->un.fmt4.pc; /* is really FSLW for access error */ + +#ifdef DEBUG + printk("fslw=%#lx, fa=%#lx\n", fslw, fp->un.fmt4.effaddr); +#endif + + if (fslw & MMU060_BPE) { + /* branch prediction error -> clear branch cache */ + __asm__ __volatile__ ("movec %/cacr,%/d0\n\t" + "orl #0x00400000,%/d0\n\t" + "movec %/d0,%/cacr" + : : : "d0" ); + /* return if there's no other error */ + if (!(fslw & MMU060_ERR_BITS) && !(fslw & MMU060_SEE)) + return; + } + + if (fslw & (MMU060_DESC_ERR | MMU060_WP | MMU060_SP)) { + unsigned long errorcode; + unsigned long addr = fp->un.fmt4.effaddr; + + if (fslw & MMU060_MA) + addr = (addr + PAGE_SIZE - 1) & PAGE_MASK; + + errorcode = 1; + if (fslw & MMU060_DESC_ERR) { + __flush_tlb040_one(addr); + errorcode = 0; + } + if (fslw & MMU060_W) + errorcode |= 2; +#ifdef DEBUG + printk("errorcode = %d\n", errorcode ); +#endif + do_page_fault(&fp->ptregs, addr, errorcode); + } else if (fslw & (MMU060_SEE)){ + /* Software Emulation Error. + * fault during mem_read/mem_write in ifpsp060/os.S + */ + send_fault_sig(&fp->ptregs); + } else if (!(fslw & (MMU060_RE|MMU060_WE)) || + send_fault_sig(&fp->ptregs) > 0) { + printk("pc=%#lx, fa=%#lx\n", fp->ptregs.pc, fp->un.fmt4.effaddr); + printk( "68060 access error, fslw=%lx\n", fslw ); + trap_c( fp ); + } +} +#endif /* CONFIG_M68060 */ + +#if defined (CONFIG_M68040) +static inline unsigned long probe040(int iswrite, unsigned long addr, int wbs) +{ + unsigned long mmusr; + mm_segment_t old_fs = get_fs(); + + set_fs(MAKE_MM_SEG(wbs)); + + if (iswrite) + asm volatile (".chip 68040; ptestw (%0); .chip 68k" : : "a" (addr)); + else + asm volatile (".chip 68040; ptestr (%0); .chip 68k" : : "a" (addr)); + + asm volatile (".chip 68040; movec %%mmusr,%0; .chip 68k" : "=r" (mmusr)); + + set_fs(old_fs); + + return mmusr; +} + +static inline int do_040writeback1(unsigned short wbs, unsigned long wba, + unsigned long wbd) +{ + int res = 0; + mm_segment_t old_fs = get_fs(); + + /* set_fs can not be moved, otherwise put_user() may oops */ + set_fs(MAKE_MM_SEG(wbs)); + + switch (wbs & WBSIZ_040) { + case BA_SIZE_BYTE: + res = put_user(wbd & 0xff, (char __user *)wba); + break; + case BA_SIZE_WORD: + res = put_user(wbd & 0xffff, (short __user *)wba); + break; + case BA_SIZE_LONG: + res = put_user(wbd, (int __user *)wba); + break; + } + + /* set_fs can not be moved, otherwise put_user() may oops */ + set_fs(old_fs); + + +#ifdef DEBUG + printk("do_040writeback1, res=%d\n",res); +#endif + + return res; +} + +/* after an exception in a writeback the stack frame corresponding + * to that exception is discarded, set a few bits in the old frame + * to simulate what it should look like + */ +static inline void fix_xframe040(struct frame *fp, unsigned long wba, unsigned short wbs) +{ + fp->un.fmt7.faddr = wba; + fp->un.fmt7.ssw = wbs & 0xff; + if (wba != current->thread.faddr) + fp->un.fmt7.ssw |= MA_040; +} + +static inline void do_040writebacks(struct frame *fp) +{ + int res = 0; +#if 0 + if (fp->un.fmt7.wb1s & WBV_040) + printk("access_error040: cannot handle 1st writeback. oops.\n"); +#endif + + if ((fp->un.fmt7.wb2s & WBV_040) && + !(fp->un.fmt7.wb2s & WBTT_040)) { + res = do_040writeback1(fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, + fp->un.fmt7.wb2d); + if (res) + fix_xframe040(fp, fp->un.fmt7.wb2a, fp->un.fmt7.wb2s); + else + fp->un.fmt7.wb2s = 0; + } + + /* do the 2nd wb only if the first one was successful (except for a kernel wb) */ + if (fp->un.fmt7.wb3s & WBV_040 && (!res || fp->un.fmt7.wb3s & 4)) { + res = do_040writeback1(fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, + fp->un.fmt7.wb3d); + if (res) + { + fix_xframe040(fp, fp->un.fmt7.wb3a, fp->un.fmt7.wb3s); + + fp->un.fmt7.wb2s = fp->un.fmt7.wb3s; + fp->un.fmt7.wb3s &= (~WBV_040); + fp->un.fmt7.wb2a = fp->un.fmt7.wb3a; + fp->un.fmt7.wb2d = fp->un.fmt7.wb3d; + } + else + fp->un.fmt7.wb3s = 0; + } + + if (res) + send_fault_sig(&fp->ptregs); +} + +/* + * called from sigreturn(), must ensure userspace code didn't + * manipulate exception frame to circumvent protection, then complete + * pending writebacks + * we just clear TM2 to turn it into a userspace access + */ +asmlinkage void berr_040cleanup(struct frame *fp) +{ + fp->un.fmt7.wb2s &= ~4; + fp->un.fmt7.wb3s &= ~4; + + do_040writebacks(fp); +} + +static inline void access_error040(struct frame *fp) +{ + unsigned short ssw = fp->un.fmt7.ssw; + unsigned long mmusr; + +#ifdef DEBUG + printk("ssw=%#x, fa=%#lx\n", ssw, fp->un.fmt7.faddr); + printk("wb1s=%#x, wb2s=%#x, wb3s=%#x\n", fp->un.fmt7.wb1s, + fp->un.fmt7.wb2s, fp->un.fmt7.wb3s); + printk ("wb2a=%lx, wb3a=%lx, wb2d=%lx, wb3d=%lx\n", + fp->un.fmt7.wb2a, fp->un.fmt7.wb3a, + fp->un.fmt7.wb2d, fp->un.fmt7.wb3d); +#endif + + if (ssw & ATC_040) { + unsigned long addr = fp->un.fmt7.faddr; + unsigned long errorcode; + + /* + * The MMU status has to be determined AFTER the address + * has been corrected if there was a misaligned access (MA). + */ + if (ssw & MA_040) + addr = (addr + 7) & -8; + + /* MMU error, get the MMUSR info for this access */ + mmusr = probe040(!(ssw & RW_040), addr, ssw); +#ifdef DEBUG + printk("mmusr = %lx\n", mmusr); +#endif + errorcode = 1; + if (!(mmusr & MMU_R_040)) { + /* clear the invalid atc entry */ + __flush_tlb040_one(addr); + errorcode = 0; + } + + /* despite what documentation seems to say, RMW + * accesses have always both the LK and RW bits set */ + if (!(ssw & RW_040) || (ssw & LK_040)) + errorcode |= 2; + + if (do_page_fault(&fp->ptregs, addr, errorcode)) { +#ifdef DEBUG + printk("do_page_fault() !=0\n"); +#endif + if (user_mode(&fp->ptregs)){ + /* delay writebacks after signal delivery */ +#ifdef DEBUG + printk(".. was usermode - return\n"); +#endif + return; + } + /* disable writeback into user space from kernel + * (if do_page_fault didn't fix the mapping, + * the writeback won't do good) + */ +disable_wb: +#ifdef DEBUG + printk(".. disabling wb2\n"); +#endif + if (fp->un.fmt7.wb2a == fp->un.fmt7.faddr) + fp->un.fmt7.wb2s &= ~WBV_040; + if (fp->un.fmt7.wb3a == fp->un.fmt7.faddr) + fp->un.fmt7.wb3s &= ~WBV_040; + } + } else { + /* In case of a bus error we either kill the process or expect + * the kernel to catch the fault, which then is also responsible + * for cleaning up the mess. + */ + current->thread.signo = SIGBUS; + current->thread.faddr = fp->un.fmt7.faddr; + if (send_fault_sig(&fp->ptregs) >= 0) + printk("68040 bus error (ssw=%x, faddr=%lx)\n", ssw, + fp->un.fmt7.faddr); + goto disable_wb; + } + + do_040writebacks(fp); +} +#endif /* CONFIG_M68040 */ + +#if defined(CONFIG_SUN3) +#include <asm/sun3mmu.h> + +extern int mmu_emu_handle_fault (unsigned long, int, int); + +/* sun3 version of bus_error030 */ + +static inline void bus_error030 (struct frame *fp) +{ + unsigned char buserr_type = sun3_get_buserr (); + unsigned long addr, errorcode; + unsigned short ssw = fp->un.fmtb.ssw; + extern unsigned long _sun3_map_test_start, _sun3_map_test_end; + +#ifdef DEBUG + if (ssw & (FC | FB)) + printk ("Instruction fault at %#010lx\n", + ssw & FC ? + fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2 + : + fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); + if (ssw & DF) + printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", + ssw & RW ? "read" : "write", + fp->un.fmtb.daddr, + space_names[ssw & DFC], fp->ptregs.pc); +#endif + + /* + * Check if this page should be demand-mapped. This needs to go before + * the testing for a bad kernel-space access (demand-mapping applies + * to kernel accesses too). + */ + + if ((ssw & DF) + && (buserr_type & (SUN3_BUSERR_PROTERR | SUN3_BUSERR_INVALID))) { + if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 0)) + return; + } + + /* Check for kernel-space pagefault (BAD). */ + if (fp->ptregs.sr & PS_S) { + /* kernel fault must be a data fault to user space */ + if (! ((ssw & DF) && ((ssw & DFC) == USER_DATA))) { + // try checking the kernel mappings before surrender + if (mmu_emu_handle_fault (fp->un.fmtb.daddr, ssw & RW, 1)) + return; + /* instruction fault or kernel data fault! */ + if (ssw & (FC | FB)) + printk ("Instruction fault at %#010lx\n", + fp->ptregs.pc); + if (ssw & DF) { + /* was this fault incurred testing bus mappings? */ + if((fp->ptregs.pc >= (unsigned long)&_sun3_map_test_start) && + (fp->ptregs.pc <= (unsigned long)&_sun3_map_test_end)) { + send_fault_sig(&fp->ptregs); + return; + } + + printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", + ssw & RW ? "read" : "write", + fp->un.fmtb.daddr, + space_names[ssw & DFC], fp->ptregs.pc); + } + printk ("BAD KERNEL BUSERR\n"); + + die_if_kernel("Oops", &fp->ptregs,0); + force_sig(SIGKILL, current); + return; + } + } else { + /* user fault */ + if (!(ssw & (FC | FB)) && !(ssw & DF)) + /* not an instruction fault or data fault! BAD */ + panic ("USER BUSERR w/o instruction or data fault"); + } + + + /* First handle the data fault, if any. */ + if (ssw & DF) { + addr = fp->un.fmtb.daddr; + +// errorcode bit 0: 0 -> no page 1 -> protection fault +// errorcode bit 1: 0 -> read fault 1 -> write fault + +// (buserr_type & SUN3_BUSERR_PROTERR) -> protection fault +// (buserr_type & SUN3_BUSERR_INVALID) -> invalid page fault + + if (buserr_type & SUN3_BUSERR_PROTERR) + errorcode = 0x01; + else if (buserr_type & SUN3_BUSERR_INVALID) + errorcode = 0x00; + else { +#ifdef DEBUG + printk ("*** unexpected busfault type=%#04x\n", buserr_type); + printk ("invalid %s access at %#lx from pc %#lx\n", + !(ssw & RW) ? "write" : "read", addr, + fp->ptregs.pc); +#endif + die_if_kernel ("Oops", &fp->ptregs, buserr_type); + force_sig (SIGBUS, current); + return; + } + +//todo: wtf is RM bit? --m + if (!(ssw & RW) || ssw & RM) + errorcode |= 0x02; + + /* Handle page fault. */ + do_page_fault (&fp->ptregs, addr, errorcode); + + /* Retry the data fault now. */ + return; + } + + /* Now handle the instruction fault. */ + + /* Get the fault address. */ + if (fp->ptregs.format == 0xA) + addr = fp->ptregs.pc + 4; + else + addr = fp->un.fmtb.baddr; + if (ssw & FC) + addr -= 2; + + if (buserr_type & SUN3_BUSERR_INVALID) { + if (!mmu_emu_handle_fault (fp->un.fmtb.daddr, 1, 0)) + do_page_fault (&fp->ptregs, addr, 0); + } else { +#ifdef DEBUG + printk ("protection fault on insn access (segv).\n"); +#endif + force_sig (SIGSEGV, current); + } +} +#else +#if defined(CPU_M68020_OR_M68030) +static inline void bus_error030 (struct frame *fp) +{ + volatile unsigned short temp; + unsigned short mmusr; + unsigned long addr, errorcode; + unsigned short ssw = fp->un.fmtb.ssw; +#ifdef DEBUG + unsigned long desc; + + printk ("pid = %x ", current->pid); + printk ("SSW=%#06x ", ssw); + + if (ssw & (FC | FB)) + printk ("Instruction fault at %#010lx\n", + ssw & FC ? + fp->ptregs.format == 0xa ? fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2 + : + fp->ptregs.format == 0xa ? fp->ptregs.pc + 4 : fp->un.fmtb.baddr); + if (ssw & DF) + printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", + ssw & RW ? "read" : "write", + fp->un.fmtb.daddr, + space_names[ssw & DFC], fp->ptregs.pc); +#endif + + /* ++andreas: If a data fault and an instruction fault happen + at the same time map in both pages. */ + + /* First handle the data fault, if any. */ + if (ssw & DF) { + addr = fp->un.fmtb.daddr; + +#ifdef DEBUG + asm volatile ("ptestr %3,%2@,#7,%0\n\t" + "pmove %%psr,%1@" + : "=a&" (desc) + : "a" (&temp), "a" (addr), "d" (ssw)); +#else + asm volatile ("ptestr %2,%1@,#7\n\t" + "pmove %%psr,%0@" + : : "a" (&temp), "a" (addr), "d" (ssw)); +#endif + mmusr = temp; + +#ifdef DEBUG + printk("mmusr is %#x for addr %#lx in task %p\n", + mmusr, addr, current); + printk("descriptor address is %#lx, contents %#lx\n", + __va(desc), *(unsigned long *)__va(desc)); +#endif + + errorcode = (mmusr & MMU_I) ? 0 : 1; + if (!(ssw & RW) || (ssw & RM)) + errorcode |= 2; + + if (mmusr & (MMU_I | MMU_WP)) { + if (ssw & 4) { + printk("Data %s fault at %#010lx in %s (pc=%#lx)\n", + ssw & RW ? "read" : "write", + fp->un.fmtb.daddr, + space_names[ssw & DFC], fp->ptregs.pc); + goto buserr; + } + /* Don't try to do anything further if an exception was + handled. */ + if (do_page_fault (&fp->ptregs, addr, errorcode) < 0) + return; + } else if (!(mmusr & MMU_I)) { + /* probably a 020 cas fault */ + if (!(ssw & RM) && send_fault_sig(&fp->ptregs) > 0) + printk("unexpected bus error (%#x,%#x)\n", ssw, mmusr); + } else if (mmusr & (MMU_B|MMU_L|MMU_S)) { + printk("invalid %s access at %#lx from pc %#lx\n", + !(ssw & RW) ? "write" : "read", addr, + fp->ptregs.pc); + die_if_kernel("Oops",&fp->ptregs,mmusr); + force_sig(SIGSEGV, current); + return; + } else { +#if 0 + static volatile long tlong; +#endif + + printk("weird %s access at %#lx from pc %#lx (ssw is %#x)\n", + !(ssw & RW) ? "write" : "read", addr, + fp->ptregs.pc, ssw); + asm volatile ("ptestr #1,%1@,#0\n\t" + "pmove %%psr,%0@" + : /* no outputs */ + : "a" (&temp), "a" (addr)); + mmusr = temp; + + printk ("level 0 mmusr is %#x\n", mmusr); +#if 0 + asm volatile ("pmove %%tt0,%0@" + : /* no outputs */ + : "a" (&tlong)); + printk("tt0 is %#lx, ", tlong); + asm volatile ("pmove %%tt1,%0@" + : /* no outputs */ + : "a" (&tlong)); + printk("tt1 is %#lx\n", tlong); +#endif +#ifdef DEBUG + printk("Unknown SIGSEGV - 1\n"); +#endif + die_if_kernel("Oops",&fp->ptregs,mmusr); + force_sig(SIGSEGV, current); + return; + } + + /* setup an ATC entry for the access about to be retried */ + if (!(ssw & RW) || (ssw & RM)) + asm volatile ("ploadw %1,%0@" : /* no outputs */ + : "a" (addr), "d" (ssw)); + else + asm volatile ("ploadr %1,%0@" : /* no outputs */ + : "a" (addr), "d" (ssw)); + } + + /* Now handle the instruction fault. */ + + if (!(ssw & (FC|FB))) + return; + + if (fp->ptregs.sr & PS_S) { + printk("Instruction fault at %#010lx\n", + fp->ptregs.pc); + buserr: + printk ("BAD KERNEL BUSERR\n"); + die_if_kernel("Oops",&fp->ptregs,0); + force_sig(SIGKILL, current); + return; + } + + /* get the fault address */ + if (fp->ptregs.format == 10) + addr = fp->ptregs.pc + 4; + else + addr = fp->un.fmtb.baddr; + if (ssw & FC) + addr -= 2; + + if ((ssw & DF) && ((addr ^ fp->un.fmtb.daddr) & PAGE_MASK) == 0) + /* Insn fault on same page as data fault. But we + should still create the ATC entry. */ + goto create_atc_entry; + +#ifdef DEBUG + asm volatile ("ptestr #1,%2@,#7,%0\n\t" + "pmove %%psr,%1@" + : "=a&" (desc) + : "a" (&temp), "a" (addr)); +#else + asm volatile ("ptestr #1,%1@,#7\n\t" + "pmove %%psr,%0@" + : : "a" (&temp), "a" (addr)); +#endif + mmusr = temp; + +#ifdef DEBUG + printk ("mmusr is %#x for addr %#lx in task %p\n", + mmusr, addr, current); + printk ("descriptor address is %#lx, contents %#lx\n", + __va(desc), *(unsigned long *)__va(desc)); +#endif + + if (mmusr & MMU_I) + do_page_fault (&fp->ptregs, addr, 0); + else if (mmusr & (MMU_B|MMU_L|MMU_S)) { + printk ("invalid insn access at %#lx from pc %#lx\n", + addr, fp->ptregs.pc); +#ifdef DEBUG + printk("Unknown SIGSEGV - 2\n"); +#endif + die_if_kernel("Oops",&fp->ptregs,mmusr); + force_sig(SIGSEGV, current); + return; + } + +create_atc_entry: + /* setup an ATC entry for the access about to be retried */ + asm volatile ("ploadr #2,%0@" : /* no outputs */ + : "a" (addr)); +} +#endif /* CPU_M68020_OR_M68030 */ +#endif /* !CONFIG_SUN3 */ + +asmlinkage void buserr_c(struct frame *fp) +{ + /* Only set esp0 if coming from user mode */ + if (user_mode(&fp->ptregs)) + current->thread.esp0 = (unsigned long) fp; + +#ifdef DEBUG + printk ("*** Bus Error *** Format is %x\n", fp->ptregs.format); +#endif + + switch (fp->ptregs.format) { +#if defined (CONFIG_M68060) + case 4: /* 68060 access error */ + access_error060 (fp); + break; +#endif +#if defined (CONFIG_M68040) + case 0x7: /* 68040 access error */ + access_error040 (fp); + break; +#endif +#if defined (CPU_M68020_OR_M68030) + case 0xa: + case 0xb: + bus_error030 (fp); + break; +#endif + default: + die_if_kernel("bad frame format",&fp->ptregs,0); +#ifdef DEBUG + printk("Unknown SIGSEGV - 4\n"); +#endif + force_sig(SIGSEGV, current); + } +} + + +static int kstack_depth_to_print = 48; + +void show_trace(unsigned long *stack) +{ + unsigned long *endstack; + unsigned long addr; + int i; + + printk("Call Trace:"); + addr = (unsigned long)stack + THREAD_SIZE - 1; + endstack = (unsigned long *)(addr & -THREAD_SIZE); + i = 0; + while (stack + 1 <= endstack) { + addr = *stack++; + /* + * If the address is either in the text segment of the + * kernel, or in the region which contains vmalloc'ed + * memory, it *may* be the address of a calling + * routine; if so, print it so that someone tracing + * down the cause of the crash will be able to figure + * out the call path that was taken. + */ + if (__kernel_text_address(addr)) { +#ifndef CONFIG_KALLSYMS + if (i % 5 == 0) + printk("\n "); +#endif + printk(" [<%08lx>] %pS\n", addr, (void *)addr); + i++; + } + } + printk("\n"); +} + +void show_registers(struct pt_regs *regs) +{ + struct frame *fp = (struct frame *)regs; + mm_segment_t old_fs = get_fs(); + u16 c, *cp; + unsigned long addr; + int i; + + print_modules(); + printk("PC: [<%08lx>] %pS\n", regs->pc, (void *)regs->pc); + printk("SR: %04x SP: %p a2: %08lx\n", regs->sr, regs, regs->a2); + printk("d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", + regs->d0, regs->d1, regs->d2, regs->d3); + printk("d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", + regs->d4, regs->d5, regs->a0, regs->a1); + + printk("Process %s (pid: %d, task=%p)\n", + current->comm, task_pid_nr(current), current); + addr = (unsigned long)&fp->un; + printk("Frame format=%X ", regs->format); + switch (regs->format) { + case 0x2: + printk("instr addr=%08lx\n", fp->un.fmt2.iaddr); + addr += sizeof(fp->un.fmt2); + break; + case 0x3: + printk("eff addr=%08lx\n", fp->un.fmt3.effaddr); + addr += sizeof(fp->un.fmt3); + break; + case 0x4: + printk((CPU_IS_060 ? "fault addr=%08lx fslw=%08lx\n" + : "eff addr=%08lx pc=%08lx\n"), + fp->un.fmt4.effaddr, fp->un.fmt4.pc); + addr += sizeof(fp->un.fmt4); + break; + case 0x7: + printk("eff addr=%08lx ssw=%04x faddr=%08lx\n", + fp->un.fmt7.effaddr, fp->un.fmt7.ssw, fp->un.fmt7.faddr); + printk("wb 1 stat/addr/data: %04x %08lx %08lx\n", + fp->un.fmt7.wb1s, fp->un.fmt7.wb1a, fp->un.fmt7.wb1dpd0); + printk("wb 2 stat/addr/data: %04x %08lx %08lx\n", + fp->un.fmt7.wb2s, fp->un.fmt7.wb2a, fp->un.fmt7.wb2d); + printk("wb 3 stat/addr/data: %04x %08lx %08lx\n", + fp->un.fmt7.wb3s, fp->un.fmt7.wb3a, fp->un.fmt7.wb3d); + printk("push data: %08lx %08lx %08lx %08lx\n", + fp->un.fmt7.wb1dpd0, fp->un.fmt7.pd1, fp->un.fmt7.pd2, + fp->un.fmt7.pd3); + addr += sizeof(fp->un.fmt7); + break; + case 0x9: + printk("instr addr=%08lx\n", fp->un.fmt9.iaddr); + addr += sizeof(fp->un.fmt9); + break; + case 0xa: + printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", + fp->un.fmta.ssw, fp->un.fmta.isc, fp->un.fmta.isb, + fp->un.fmta.daddr, fp->un.fmta.dobuf); + addr += sizeof(fp->un.fmta); + break; + case 0xb: + printk("ssw=%04x isc=%04x isb=%04x daddr=%08lx dobuf=%08lx\n", + fp->un.fmtb.ssw, fp->un.fmtb.isc, fp->un.fmtb.isb, + fp->un.fmtb.daddr, fp->un.fmtb.dobuf); + printk("baddr=%08lx dibuf=%08lx ver=%x\n", + fp->un.fmtb.baddr, fp->un.fmtb.dibuf, fp->un.fmtb.ver); + addr += sizeof(fp->un.fmtb); + break; + default: + printk("\n"); + } + show_stack(NULL, (unsigned long *)addr); + + printk("Code:"); + set_fs(KERNEL_DS); + cp = (u16 *)regs->pc; + for (i = -8; i < 16; i++) { + if (get_user(c, cp + i) && i >= 0) { + printk(" Bad PC value."); + break; + } + printk(i ? " %04x" : " <%04x>", c); + } + set_fs(old_fs); + printk ("\n"); +} + +void show_stack(struct task_struct *task, unsigned long *stack) +{ + unsigned long *p; + unsigned long *endstack; + int i; + + if (!stack) { + if (task) + stack = (unsigned long *)task->thread.esp0; + else + stack = (unsigned long *)&stack; + } + endstack = (unsigned long *)(((unsigned long)stack + THREAD_SIZE - 1) & -THREAD_SIZE); + + printk("Stack from %08lx:", (unsigned long)stack); + p = stack; + for (i = 0; i < kstack_depth_to_print; i++) { + if (p + 1 > endstack) + break; + if (i % 8 == 0) + printk("\n "); + printk(" %08lx", *p++); + } + printk("\n"); + show_trace(stack); +} + +/* + * The architecture-independent backtrace generator + */ +void dump_stack(void) +{ + unsigned long stack; + + show_trace(&stack); +} + +EXPORT_SYMBOL(dump_stack); + +void bad_super_trap (struct frame *fp) +{ + console_verbose(); + if (fp->ptregs.vector < 4 * ARRAY_SIZE(vec_names)) + printk ("*** %s *** FORMAT=%X\n", + vec_names[(fp->ptregs.vector) >> 2], + fp->ptregs.format); + else + printk ("*** Exception %d *** FORMAT=%X\n", + (fp->ptregs.vector) >> 2, + fp->ptregs.format); + if (fp->ptregs.vector >> 2 == VEC_ADDRERR && CPU_IS_020_OR_030) { + unsigned short ssw = fp->un.fmtb.ssw; + + printk ("SSW=%#06x ", ssw); + + if (ssw & RC) + printk ("Pipe stage C instruction fault at %#010lx\n", + (fp->ptregs.format) == 0xA ? + fp->ptregs.pc + 2 : fp->un.fmtb.baddr - 2); + if (ssw & RB) + printk ("Pipe stage B instruction fault at %#010lx\n", + (fp->ptregs.format) == 0xA ? + fp->ptregs.pc + 4 : fp->un.fmtb.baddr); + if (ssw & DF) + printk ("Data %s fault at %#010lx in %s (pc=%#lx)\n", + ssw & RW ? "read" : "write", + fp->un.fmtb.daddr, space_names[ssw & DFC], + fp->ptregs.pc); + } + printk ("Current process id is %d\n", task_pid_nr(current)); + die_if_kernel("BAD KERNEL TRAP", &fp->ptregs, 0); +} + +asmlinkage void trap_c(struct frame *fp) +{ + int sig; + siginfo_t info; + + if (fp->ptregs.sr & PS_S) { + if (fp->ptregs.vector == VEC_TRACE << 2) { + /* traced a trapping instruction on a 68020/30, + * real exception will be executed afterwards. + */ + } else if (!handle_kernel_fault(&fp->ptregs)) + bad_super_trap(fp); + return; + } + + /* send the appropriate signal to the user program */ + switch ((fp->ptregs.vector) >> 2) { + case VEC_ADDRERR: + info.si_code = BUS_ADRALN; + sig = SIGBUS; + break; + case VEC_ILLEGAL: + case VEC_LINE10: + case VEC_LINE11: + info.si_code = ILL_ILLOPC; + sig = SIGILL; + break; + case VEC_PRIV: + info.si_code = ILL_PRVOPC; + sig = SIGILL; + break; + case VEC_COPROC: + info.si_code = ILL_COPROC; + sig = SIGILL; + break; + case VEC_TRAP1: + case VEC_TRAP2: + case VEC_TRAP3: + case VEC_TRAP4: + case VEC_TRAP5: + case VEC_TRAP6: + case VEC_TRAP7: + case VEC_TRAP8: + case VEC_TRAP9: + case VEC_TRAP10: + case VEC_TRAP11: + case VEC_TRAP12: + case VEC_TRAP13: + case VEC_TRAP14: + info.si_code = ILL_ILLTRP; + sig = SIGILL; + break; + case VEC_FPBRUC: + case VEC_FPOE: + case VEC_FPNAN: + info.si_code = FPE_FLTINV; + sig = SIGFPE; + break; + case VEC_FPIR: + info.si_code = FPE_FLTRES; + sig = SIGFPE; + break; + case VEC_FPDIVZ: + info.si_code = FPE_FLTDIV; + sig = SIGFPE; + break; + case VEC_FPUNDER: + info.si_code = FPE_FLTUND; + sig = SIGFPE; + break; + case VEC_FPOVER: + info.si_code = FPE_FLTOVF; + sig = SIGFPE; + break; + case VEC_ZERODIV: + info.si_code = FPE_INTDIV; + sig = SIGFPE; + break; + case VEC_CHK: + case VEC_TRAP: + info.si_code = FPE_INTOVF; + sig = SIGFPE; + break; + case VEC_TRACE: /* ptrace single step */ + info.si_code = TRAP_TRACE; + sig = SIGTRAP; + break; + case VEC_TRAP15: /* breakpoint */ + info.si_code = TRAP_BRKPT; + sig = SIGTRAP; + break; + default: + info.si_code = ILL_ILLOPC; + sig = SIGILL; + break; + } + info.si_signo = sig; + info.si_errno = 0; + switch (fp->ptregs.format) { + default: + info.si_addr = (void *) fp->ptregs.pc; + break; + case 2: + info.si_addr = (void *) fp->un.fmt2.iaddr; + break; + case 7: + info.si_addr = (void *) fp->un.fmt7.effaddr; + break; + case 9: + info.si_addr = (void *) fp->un.fmt9.iaddr; + break; + case 10: + info.si_addr = (void *) fp->un.fmta.daddr; + break; + case 11: + info.si_addr = (void *) fp->un.fmtb.daddr; + break; + } + force_sig_info (sig, &info, current); +} + +void die_if_kernel (char *str, struct pt_regs *fp, int nr) +{ + if (!(fp->sr & PS_S)) + return; + + console_verbose(); + printk("%s: %08x\n",str,nr); + show_registers(fp); + add_taint(TAINT_DIE); + do_exit(SIGSEGV); +} + +/* + * This function is called if an error occur while accessing + * user-space from the fpsp040 code. + */ +asmlinkage void fpsp040_die(void) +{ + do_exit(SIGSEGV); +} + +#ifdef CONFIG_M68KFPU_EMU +asmlinkage void fpemu_signal(int signal, int code, void *addr) +{ + siginfo_t info; + + info.si_signo = signal; + info.si_errno = 0; + info.si_code = code; + info.si_addr = addr; + force_sig_info(signal, &info, current); +} +#endif diff --git a/arch/m68k/kernel/traps_no.c b/arch/m68k/kernel/traps_no.c new file mode 100644 index 000000000000..a768008dfd06 --- /dev/null +++ b/arch/m68k/kernel/traps_no.c @@ -0,0 +1,365 @@ +/* + * linux/arch/m68knommu/kernel/traps.c + * + * Copyright (C) 1993, 1994 by Hamish Macdonald + * + * 68040 fixes by Michael Rausch + * 68040 fixes by Martin Apel + * 68060 fixes by Roman Hodek + * 68060 fixes by Jesper Skov + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +/* + * Sets up all exception vectors + */ +#include <linux/sched.h> +#include <linux/signal.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/user.h> +#include <linux/string.h> +#include <linux/linkage.h> +#include <linux/init.h> +#include <linux/ptrace.h> +#include <linux/kallsyms.h> + +#include <asm/setup.h> +#include <asm/fpu.h> +#include <asm/system.h> +#include <asm/uaccess.h> +#include <asm/traps.h> +#include <asm/pgtable.h> +#include <asm/machdep.h> +#include <asm/siginfo.h> + +static char const * const vec_names[] = { + "RESET SP", "RESET PC", "BUS ERROR", "ADDRESS ERROR", + "ILLEGAL INSTRUCTION", "ZERO DIVIDE", "CHK", "TRAPcc", + "PRIVILEGE VIOLATION", "TRACE", "LINE 1010", "LINE 1111", + "UNASSIGNED RESERVED 12", "COPROCESSOR PROTOCOL VIOLATION", + "FORMAT ERROR", "UNINITIALIZED INTERRUPT", + "UNASSIGNED RESERVED 16", "UNASSIGNED RESERVED 17", + "UNASSIGNED RESERVED 18", "UNASSIGNED RESERVED 19", + "UNASSIGNED RESERVED 20", "UNASSIGNED RESERVED 21", + "UNASSIGNED RESERVED 22", "UNASSIGNED RESERVED 23", + "SPURIOUS INTERRUPT", "LEVEL 1 INT", "LEVEL 2 INT", "LEVEL 3 INT", + "LEVEL 4 INT", "LEVEL 5 INT", "LEVEL 6 INT", "LEVEL 7 INT", + "SYSCALL", "TRAP #1", "TRAP #2", "TRAP #3", + "TRAP #4", "TRAP #5", "TRAP #6", "TRAP #7", + "TRAP #8", "TRAP #9", "TRAP #10", "TRAP #11", + "TRAP #12", "TRAP #13", "TRAP #14", "TRAP #15", + "FPCP BSUN", "FPCP INEXACT", "FPCP DIV BY 0", "FPCP UNDERFLOW", + "FPCP OPERAND ERROR", "FPCP OVERFLOW", "FPCP SNAN", + "FPCP UNSUPPORTED OPERATION", + "MMU CONFIGURATION ERROR" +}; + +void __init trap_init(void) +{ +} + +void die_if_kernel(char *str, struct pt_regs *fp, int nr) +{ + if (!(fp->sr & PS_S)) + return; + + console_verbose(); + printk(KERN_EMERG "%s: %08x\n",str,nr); + printk(KERN_EMERG "PC: [<%08lx>]\nSR: %04x SP: %p a2: %08lx\n", + fp->pc, fp->sr, fp, fp->a2); + printk(KERN_EMERG "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", + fp->d0, fp->d1, fp->d2, fp->d3); + printk(KERN_EMERG "d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", + fp->d4, fp->d5, fp->a0, fp->a1); + + printk(KERN_EMERG "Process %s (pid: %d, stackpage=%08lx)\n", + current->comm, current->pid, PAGE_SIZE+(unsigned long)current); + show_stack(NULL, (unsigned long *)(fp + 1)); + add_taint(TAINT_DIE); + do_exit(SIGSEGV); +} + +asmlinkage void buserr_c(struct frame *fp) +{ + /* Only set esp0 if coming from user mode */ + if (user_mode(&fp->ptregs)) + current->thread.esp0 = (unsigned long) fp; + +#if defined(DEBUG) + printk (KERN_DEBUG "*** Bus Error *** Format is %x\n", fp->ptregs.format); +#endif + + die_if_kernel("bad frame format",&fp->ptregs,0); +#if defined(DEBUG) + printk(KERN_DEBUG "Unknown SIGSEGV - 4\n"); +#endif + force_sig(SIGSEGV, current); +} + +static void print_this_address(unsigned long addr, int i) +{ +#ifdef CONFIG_KALLSYMS + printk(KERN_EMERG " [%08lx] ", addr); + print_symbol(KERN_CONT "%s\n", addr); +#else + if (i % 5) + printk(KERN_CONT " [%08lx] ", addr); + else + printk(KERN_EMERG " [%08lx] ", addr); + i++; +#endif +} + +int kstack_depth_to_print = 48; + +static void __show_stack(struct task_struct *task, unsigned long *stack) +{ + unsigned long *endstack, addr; +#ifdef CONFIG_FRAME_POINTER + unsigned long *last_stack; +#endif + int i; + + if (!stack) + stack = (unsigned long *)task->thread.ksp; + + addr = (unsigned long) stack; + endstack = (unsigned long *) PAGE_ALIGN(addr); + + printk(KERN_EMERG "Stack from %08lx:", (unsigned long)stack); + for (i = 0; i < kstack_depth_to_print; i++) { + if (stack + 1 + i > endstack) + break; + if (i % 8 == 0) + printk(KERN_EMERG " "); + printk(KERN_CONT " %08lx", *(stack + i)); + } + printk("\n"); + i = 0; + +#ifdef CONFIG_FRAME_POINTER + printk(KERN_EMERG "Call Trace:\n"); + + last_stack = stack - 1; + while (stack <= endstack && stack > last_stack) { + + addr = *(stack + 1); + print_this_address(addr, i); + i++; + + last_stack = stack; + stack = (unsigned long *)*stack; + } + printk("\n"); +#else + printk(KERN_EMERG "Call Trace with CONFIG_FRAME_POINTER disabled:\n"); + while (stack <= endstack) { + addr = *stack++; + /* + * If the address is either in the text segment of the kernel, + * or in a region which is occupied by a module then it *may* + * be the address of a calling routine; if so, print it so that + * someone tracing down the cause of the crash will be able to + * figure out the call path that was taken. + */ + if (__kernel_text_address(addr)) { + print_this_address(addr, i); + i++; + } + } + printk(KERN_CONT "\n"); +#endif +} + +void bad_super_trap(struct frame *fp) +{ + int vector = (fp->ptregs.vector >> 2) & 0xff; + + console_verbose(); + if (vector < ARRAY_SIZE(vec_names)) + printk (KERN_WARNING "*** %s *** FORMAT=%X\n", + vec_names[vector], + fp->ptregs.format); + else + printk (KERN_WARNING "*** Exception %d *** FORMAT=%X\n", + vector, + fp->ptregs.format); + printk (KERN_WARNING "Current process id is %d\n", current->pid); + die_if_kernel("BAD KERNEL TRAP", &fp->ptregs, 0); +} + +asmlinkage void trap_c(struct frame *fp) +{ + int sig; + int vector = (fp->ptregs.vector >> 2) & 0xff; + siginfo_t info; + + if (fp->ptregs.sr & PS_S) { + if (vector == VEC_TRACE) { + /* traced a trapping instruction */ + } else + bad_super_trap(fp); + return; + } + + /* send the appropriate signal to the user program */ + switch (vector) { + case VEC_ADDRERR: + info.si_code = BUS_ADRALN; + sig = SIGBUS; + break; + case VEC_ILLEGAL: + case VEC_LINE10: + case VEC_LINE11: + info.si_code = ILL_ILLOPC; + sig = SIGILL; + break; + case VEC_PRIV: + info.si_code = ILL_PRVOPC; + sig = SIGILL; + break; + case VEC_COPROC: + info.si_code = ILL_COPROC; + sig = SIGILL; + break; + case VEC_TRAP1: /* gdbserver breakpoint */ + fp->ptregs.pc -= 2; + info.si_code = TRAP_TRACE; + sig = SIGTRAP; + break; + case VEC_TRAP2: + case VEC_TRAP3: + case VEC_TRAP4: + case VEC_TRAP5: + case VEC_TRAP6: + case VEC_TRAP7: + case VEC_TRAP8: + case VEC_TRAP9: + case VEC_TRAP10: + case VEC_TRAP11: + case VEC_TRAP12: + case VEC_TRAP13: + case VEC_TRAP14: + info.si_code = ILL_ILLTRP; + sig = SIGILL; + break; + case VEC_FPBRUC: + case VEC_FPOE: + case VEC_FPNAN: + info.si_code = FPE_FLTINV; + sig = SIGFPE; + break; + case VEC_FPIR: + info.si_code = FPE_FLTRES; + sig = SIGFPE; + break; + case VEC_FPDIVZ: + info.si_code = FPE_FLTDIV; + sig = SIGFPE; + break; + case VEC_FPUNDER: + info.si_code = FPE_FLTUND; + sig = SIGFPE; + break; + case VEC_FPOVER: + info.si_code = FPE_FLTOVF; + sig = SIGFPE; + break; + case VEC_ZERODIV: + info.si_code = FPE_INTDIV; + sig = SIGFPE; + break; + case VEC_CHK: + case VEC_TRAP: + info.si_code = FPE_INTOVF; + sig = SIGFPE; + break; + case VEC_TRACE: /* ptrace single step */ + info.si_code = TRAP_TRACE; + sig = SIGTRAP; + break; + case VEC_TRAP15: /* breakpoint */ + info.si_code = TRAP_BRKPT; + sig = SIGTRAP; + break; + default: + info.si_code = ILL_ILLOPC; + sig = SIGILL; + break; + } + info.si_signo = sig; + info.si_errno = 0; + switch (fp->ptregs.format) { + default: + info.si_addr = (void *) fp->ptregs.pc; + break; + case 2: + info.si_addr = (void *) fp->un.fmt2.iaddr; + break; + case 7: + info.si_addr = (void *) fp->un.fmt7.effaddr; + break; + case 9: + info.si_addr = (void *) fp->un.fmt9.iaddr; + break; + case 10: + info.si_addr = (void *) fp->un.fmta.daddr; + break; + case 11: + info.si_addr = (void *) fp->un.fmtb.daddr; + break; + } + force_sig_info (sig, &info, current); +} + +asmlinkage void set_esp0(unsigned long ssp) +{ + current->thread.esp0 = ssp; +} + +/* + * The architecture-independent backtrace generator + */ +void dump_stack(void) +{ + /* + * We need frame pointers for this little trick, which works as follows: + * + * +------------+ 0x00 + * | Next SP | -> 0x0c + * +------------+ 0x04 + * | Caller | + * +------------+ 0x08 + * | Local vars | -> our stack var + * +------------+ 0x0c + * | Next SP | -> 0x18, that is what we pass to show_stack() + * +------------+ 0x10 + * | Caller | + * +------------+ 0x14 + * | Local vars | + * +------------+ 0x18 + * | ... | + * +------------+ + */ + + unsigned long *stack; + + stack = (unsigned long *)&stack; + stack++; + __show_stack(current, stack); +} +EXPORT_SYMBOL(dump_stack); + +void show_stack(struct task_struct *task, unsigned long *stack) +{ + if (!stack && !task) + dump_stack(); + else + __show_stack(task, stack); +} diff --git a/arch/m68k/kernel/vmlinux.lds.S b/arch/m68k/kernel/vmlinux.lds.S index 99ba315bd0a8..030dabf0bc53 100644 --- a/arch/m68k/kernel/vmlinux.lds.S +++ b/arch/m68k/kernel/vmlinux.lds.S @@ -1,10 +1,5 @@ -PHDRS -{ - text PT_LOAD FILEHDR PHDRS FLAGS (7); - data PT_LOAD FLAGS (7); -} -#ifdef CONFIG_SUN3 -#include "vmlinux-sun3.lds" +#ifdef CONFIG_MMU +#include "vmlinux.lds_mm.S" #else -#include "vmlinux-std.lds" +#include "vmlinux.lds_no.S" #endif diff --git a/arch/m68k/kernel/vmlinux.lds_mm.S b/arch/m68k/kernel/vmlinux.lds_mm.S new file mode 100644 index 000000000000..99ba315bd0a8 --- /dev/null +++ b/arch/m68k/kernel/vmlinux.lds_mm.S @@ -0,0 +1,10 @@ +PHDRS +{ + text PT_LOAD FILEHDR PHDRS FLAGS (7); + data PT_LOAD FLAGS (7); +} +#ifdef CONFIG_SUN3 +#include "vmlinux-sun3.lds" +#else +#include "vmlinux-std.lds" +#endif diff --git a/arch/m68k/kernel/vmlinux.lds_no.S b/arch/m68k/kernel/vmlinux.lds_no.S new file mode 100644 index 000000000000..47e15ebfd893 --- /dev/null +++ b/arch/m68k/kernel/vmlinux.lds_no.S @@ -0,0 +1,188 @@ +/* + * vmlinux.lds.S -- master linker script for m68knommu arch + * + * (C) Copyright 2002-2006, Greg Ungerer <gerg@snapgear.com> + * + * This linker script is equiped to build either ROM loaded or RAM + * run kernels. + */ + +#include <asm-generic/vmlinux.lds.h> +#include <asm/page.h> +#include <asm/thread_info.h> + +#if defined(CONFIG_RAMKERNEL) +#define RAM_START CONFIG_KERNELBASE +#define RAM_LENGTH (CONFIG_RAMBASE + CONFIG_RAMSIZE - CONFIG_KERNELBASE) +#define TEXT ram +#define DATA ram +#define INIT ram +#define BSSS ram +#endif +#if defined(CONFIG_ROMKERNEL) || defined(CONFIG_HIMEMKERNEL) +#define RAM_START CONFIG_RAMBASE +#define RAM_LENGTH CONFIG_RAMSIZE +#define ROMVEC_START CONFIG_ROMVEC +#define ROMVEC_LENGTH CONFIG_ROMVECSIZE +#define ROM_START CONFIG_ROMSTART +#define ROM_LENGTH CONFIG_ROMSIZE +#define TEXT rom +#define DATA ram +#define INIT ram +#define BSSS ram +#endif + +#ifndef DATA_ADDR +#define DATA_ADDR +#endif + + +OUTPUT_ARCH(m68k) +ENTRY(_start) + +MEMORY { + ram : ORIGIN = RAM_START, LENGTH = RAM_LENGTH +#ifdef ROM_START + romvec : ORIGIN = ROMVEC_START, LENGTH = ROMVEC_LENGTH + rom : ORIGIN = ROM_START, LENGTH = ROM_LENGTH +#endif +} + +jiffies = jiffies_64 + 4; + +SECTIONS { + +#ifdef ROMVEC_START + . = ROMVEC_START ; + .romvec : { + __rom_start = . ; + _romvec = .; + *(.data..initvect) + } > romvec +#endif + + .text : { + _text = .; + _stext = . ; + HEAD_TEXT + TEXT_TEXT + SCHED_TEXT + LOCK_TEXT + *(.text..lock) + + . = ALIGN(16); /* Exception table */ + __start___ex_table = .; + *(__ex_table) + __stop___ex_table = .; + + *(.rodata) *(.rodata.*) + *(__vermagic) /* Kernel version magic */ + *(__markers_strings) + *(.rodata1) + *(.rodata.str1.1) + + /* Kernel symbol table: Normal symbols */ + . = ALIGN(4); + __start___ksymtab = .; + *(__ksymtab) + __stop___ksymtab = .; + + /* Kernel symbol table: GPL-only symbols */ + __start___ksymtab_gpl = .; + *(__ksymtab_gpl) + __stop___ksymtab_gpl = .; + + /* Kernel symbol table: Normal unused symbols */ + __start___ksymtab_unused = .; + *(__ksymtab_unused) + __stop___ksymtab_unused = .; + + /* Kernel symbol table: GPL-only unused symbols */ + __start___ksymtab_unused_gpl = .; + *(__ksymtab_unused_gpl) + __stop___ksymtab_unused_gpl = .; + + /* Kernel symbol table: GPL-future symbols */ + __start___ksymtab_gpl_future = .; + *(__ksymtab_gpl_future) + __stop___ksymtab_gpl_future = .; + + /* Kernel symbol table: Normal symbols */ + __start___kcrctab = .; + *(__kcrctab) + __stop___kcrctab = .; + + /* Kernel symbol table: GPL-only symbols */ + __start___kcrctab_gpl = .; + *(__kcrctab_gpl) + __stop___kcrctab_gpl = .; + + /* Kernel symbol table: Normal unused symbols */ + __start___kcrctab_unused = .; + *(__kcrctab_unused) + __stop___kcrctab_unused = .; + + /* Kernel symbol table: GPL-only unused symbols */ + __start___kcrctab_unused_gpl = .; + *(__kcrctab_unused_gpl) + __stop___kcrctab_unused_gpl = .; + + /* Kernel symbol table: GPL-future symbols */ + __start___kcrctab_gpl_future = .; + *(__kcrctab_gpl_future) + __stop___kcrctab_gpl_future = .; + + /* Kernel symbol table: strings */ + *(__ksymtab_strings) + + /* Built-in module parameters */ + . = ALIGN(4) ; + __start___param = .; + *(__param) + __stop___param = .; + + /* Built-in module versions */ + . = ALIGN(4) ; + __start___modver = .; + *(__modver) + __stop___modver = .; + + . = ALIGN(4) ; + _etext = . ; + } > TEXT + + .data DATA_ADDR : { + . = ALIGN(4); + _sdata = . ; + DATA_DATA + CACHELINE_ALIGNED_DATA(32) + PAGE_ALIGNED_DATA(PAGE_SIZE) + *(.data..shared_aligned) + INIT_TASK_DATA(THREAD_SIZE) + _edata = . ; + } > DATA + + .init.text : { + . = ALIGN(PAGE_SIZE); + __init_begin = .; + } > INIT + INIT_TEXT_SECTION(PAGE_SIZE) > INIT + INIT_DATA_SECTION(16) > INIT + .init.data : { + . = ALIGN(PAGE_SIZE); + __init_end = .; + } > INIT + + .bss : { + . = ALIGN(4); + _sbss = . ; + *(.bss) + *(COMMON) + . = ALIGN(4) ; + _ebss = . ; + _end = . ; + } > BSSS + + DISCARDS +} + diff --git a/arch/m68k/lib/Makefile b/arch/m68k/lib/Makefile index af9abf8d9d98..1f95881d8437 100644 --- a/arch/m68k/lib/Makefile +++ b/arch/m68k/lib/Makefile @@ -1,6 +1,5 @@ -# -# Makefile for m68k-specific library files.. -# - -lib-y := ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \ - checksum.o string.o uaccess.o +ifdef CONFIG_MMU +include arch/m68k/lib/Makefile_mm +else +include arch/m68k/lib/Makefile_no +endif diff --git a/arch/m68k/lib/Makefile_mm b/arch/m68k/lib/Makefile_mm new file mode 100644 index 000000000000..af9abf8d9d98 --- /dev/null +++ b/arch/m68k/lib/Makefile_mm @@ -0,0 +1,6 @@ +# +# Makefile for m68k-specific library files.. +# + +lib-y := ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \ + checksum.o string.o uaccess.o diff --git a/arch/m68k/lib/Makefile_no b/arch/m68k/lib/Makefile_no new file mode 100644 index 000000000000..32d852e586d7 --- /dev/null +++ b/arch/m68k/lib/Makefile_no @@ -0,0 +1,7 @@ +# +# Makefile for m68knommu specific library files.. +# + +lib-y := ashldi3.o ashrdi3.o lshrdi3.o \ + muldi3.o mulsi3.o divsi3.o udivsi3.o modsi3.o umodsi3.o \ + checksum.o memcpy.o memmove.o memset.o delay.o diff --git a/arch/m68k/lib/checksum.c b/arch/m68k/lib/checksum.c index 6216f12a756b..1297536060de 100644 --- a/arch/m68k/lib/checksum.c +++ b/arch/m68k/lib/checksum.c @@ -1,425 +1,5 @@ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * IP/TCP/UDP checksumming routines - * - * Authors: Jorge Cwik, <jorge@laser.satlink.net> - * Arnt Gulbrandsen, <agulbra@nvg.unit.no> - * Tom May, <ftom@netcom.com> - * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de> - * Lots of code moved from tcp.c and ip.c; see those files - * for more names. - * - * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek: - * Fixed some nasty bugs, causing some horrible crashes. - * A: At some points, the sum (%0) was used as - * length-counter instead of the length counter - * (%1). Thanks to Roman Hodek for pointing this out. - * B: GCC seems to mess up if one uses too many - * data-registers to hold input values and one tries to - * specify d0 and d1 as scratch registers. Letting gcc - * choose these registers itself solves the problem. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * 1998/8/31 Andreas Schwab: - * Zero out rest of buffer on exception in - * csum_partial_copy_from_user. - */ - -#include <linux/module.h> -#include <net/checksum.h> - -/* - * computes a partial checksum, e.g. for TCP/UDP fragments - */ - -__wsum csum_partial(const void *buff, int len, __wsum sum) -{ - unsigned long tmp1, tmp2; - /* - * Experiments with ethernet and slip connections show that buff - * is aligned on either a 2-byte or 4-byte boundary. - */ - __asm__("movel %2,%3\n\t" - "btst #1,%3\n\t" /* Check alignment */ - "jeq 2f\n\t" - "subql #2,%1\n\t" /* buff%4==2: treat first word */ - "jgt 1f\n\t" - "addql #2,%1\n\t" /* len was == 2, treat only rest */ - "jra 4f\n" - "1:\t" - "addw %2@+,%0\n\t" /* add first word to sum */ - "clrl %3\n\t" - "addxl %3,%0\n" /* add X bit */ - "2:\t" - /* unrolled loop for the main part: do 8 longs at once */ - "movel %1,%3\n\t" /* save len in tmp1 */ - "lsrl #5,%1\n\t" /* len/32 */ - "jeq 2f\n\t" /* not enough... */ - "subql #1,%1\n" - "1:\t" - "movel %2@+,%4\n\t" - "addxl %4,%0\n\t" - "movel %2@+,%4\n\t" - "addxl %4,%0\n\t" - "movel %2@+,%4\n\t" - "addxl %4,%0\n\t" - "movel %2@+,%4\n\t" - "addxl %4,%0\n\t" - "movel %2@+,%4\n\t" - "addxl %4,%0\n\t" - "movel %2@+,%4\n\t" - "addxl %4,%0\n\t" - "movel %2@+,%4\n\t" - "addxl %4,%0\n\t" - "movel %2@+,%4\n\t" - "addxl %4,%0\n\t" - "dbra %1,1b\n\t" - "clrl %4\n\t" - "addxl %4,%0\n\t" /* add X bit */ - "clrw %1\n\t" - "subql #1,%1\n\t" - "jcc 1b\n" - "2:\t" - "movel %3,%1\n\t" /* restore len from tmp1 */ - "andw #0x1c,%3\n\t" /* number of rest longs */ - "jeq 4f\n\t" - "lsrw #2,%3\n\t" - "subqw #1,%3\n" - "3:\t" - /* loop for rest longs */ - "movel %2@+,%4\n\t" - "addxl %4,%0\n\t" - "dbra %3,3b\n\t" - "clrl %4\n\t" - "addxl %4,%0\n" /* add X bit */ - "4:\t" - /* now check for rest bytes that do not fit into longs */ - "andw #3,%1\n\t" - "jeq 7f\n\t" - "clrl %4\n\t" /* clear tmp2 for rest bytes */ - "subqw #2,%1\n\t" - "jlt 5f\n\t" - "movew %2@+,%4\n\t" /* have rest >= 2: get word */ - "swap %4\n\t" /* into bits 16..31 */ - "tstw %1\n\t" /* another byte? */ - "jeq 6f\n" - "5:\t" - "moveb %2@,%4\n\t" /* have odd rest: get byte */ - "lslw #8,%4\n\t" /* into bits 8..15; 16..31 untouched */ - "6:\t" - "addl %4,%0\n\t" /* now add rest long to sum */ - "clrl %4\n\t" - "addxl %4,%0\n" /* add X bit */ - "7:\t" - : "=d" (sum), "=d" (len), "=a" (buff), - "=&d" (tmp1), "=&d" (tmp2) - : "0" (sum), "1" (len), "2" (buff) - ); - return(sum); -} - -EXPORT_SYMBOL(csum_partial); - - -/* - * copy from user space while checksumming, with exception handling. - */ - -__wsum -csum_partial_copy_from_user(const void __user *src, void *dst, - int len, __wsum sum, int *csum_err) -{ - /* - * GCC doesn't like more than 10 operands for the asm - * statements so we have to use tmp2 for the error - * code. - */ - unsigned long tmp1, tmp2; - - __asm__("movel %2,%4\n\t" - "btst #1,%4\n\t" /* Check alignment */ - "jeq 2f\n\t" - "subql #2,%1\n\t" /* buff%4==2: treat first word */ - "jgt 1f\n\t" - "addql #2,%1\n\t" /* len was == 2, treat only rest */ - "jra 4f\n" - "1:\n" - "10:\t" - "movesw %2@+,%4\n\t" /* add first word to sum */ - "addw %4,%0\n\t" - "movew %4,%3@+\n\t" - "clrl %4\n\t" - "addxl %4,%0\n" /* add X bit */ - "2:\t" - /* unrolled loop for the main part: do 8 longs at once */ - "movel %1,%4\n\t" /* save len in tmp1 */ - "lsrl #5,%1\n\t" /* len/32 */ - "jeq 2f\n\t" /* not enough... */ - "subql #1,%1\n" - "1:\n" - "11:\t" - "movesl %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "12:\t" - "movesl %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "13:\t" - "movesl %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "14:\t" - "movesl %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "15:\t" - "movesl %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "16:\t" - "movesl %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "17:\t" - "movesl %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "18:\t" - "movesl %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "dbra %1,1b\n\t" - "clrl %5\n\t" - "addxl %5,%0\n\t" /* add X bit */ - "clrw %1\n\t" - "subql #1,%1\n\t" - "jcc 1b\n" - "2:\t" - "movel %4,%1\n\t" /* restore len from tmp1 */ - "andw #0x1c,%4\n\t" /* number of rest longs */ - "jeq 4f\n\t" - "lsrw #2,%4\n\t" - "subqw #1,%4\n" - "3:\n" - /* loop for rest longs */ - "19:\t" - "movesl %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "dbra %4,3b\n\t" - "clrl %5\n\t" - "addxl %5,%0\n" /* add X bit */ - "4:\t" - /* now check for rest bytes that do not fit into longs */ - "andw #3,%1\n\t" - "jeq 7f\n\t" - "clrl %5\n\t" /* clear tmp2 for rest bytes */ - "subqw #2,%1\n\t" - "jlt 5f\n\t" - "20:\t" - "movesw %2@+,%5\n\t" /* have rest >= 2: get word */ - "movew %5,%3@+\n\t" - "swap %5\n\t" /* into bits 16..31 */ - "tstw %1\n\t" /* another byte? */ - "jeq 6f\n" - "5:\n" - "21:\t" - "movesb %2@,%5\n\t" /* have odd rest: get byte */ - "moveb %5,%3@+\n\t" - "lslw #8,%5\n\t" /* into bits 8..15; 16..31 untouched */ - "6:\t" - "addl %5,%0\n\t" /* now add rest long to sum */ - "clrl %5\n\t" - "addxl %5,%0\n\t" /* add X bit */ - "7:\t" - "clrl %5\n" /* no error - clear return value */ - "8:\n" - ".section .fixup,\"ax\"\n" - ".even\n" - /* If any exception occurs zero out the rest. - Similarities with the code above are intentional :-) */ - "90:\t" - "clrw %3@+\n\t" - "movel %1,%4\n\t" - "lsrl #5,%1\n\t" - "jeq 1f\n\t" - "subql #1,%1\n" - "91:\t" - "clrl %3@+\n" - "92:\t" - "clrl %3@+\n" - "93:\t" - "clrl %3@+\n" - "94:\t" - "clrl %3@+\n" - "95:\t" - "clrl %3@+\n" - "96:\t" - "clrl %3@+\n" - "97:\t" - "clrl %3@+\n" - "98:\t" - "clrl %3@+\n\t" - "dbra %1,91b\n\t" - "clrw %1\n\t" - "subql #1,%1\n\t" - "jcc 91b\n" - "1:\t" - "movel %4,%1\n\t" - "andw #0x1c,%4\n\t" - "jeq 1f\n\t" - "lsrw #2,%4\n\t" - "subqw #1,%4\n" - "99:\t" - "clrl %3@+\n\t" - "dbra %4,99b\n\t" - "1:\t" - "andw #3,%1\n\t" - "jeq 9f\n" - "100:\t" - "clrw %3@+\n\t" - "tstw %1\n\t" - "jeq 9f\n" - "101:\t" - "clrb %3@+\n" - "9:\t" -#define STR(X) STR1(X) -#define STR1(X) #X - "moveq #-" STR(EFAULT) ",%5\n\t" - "jra 8b\n" - ".previous\n" - ".section __ex_table,\"a\"\n" - ".long 10b,90b\n" - ".long 11b,91b\n" - ".long 12b,92b\n" - ".long 13b,93b\n" - ".long 14b,94b\n" - ".long 15b,95b\n" - ".long 16b,96b\n" - ".long 17b,97b\n" - ".long 18b,98b\n" - ".long 19b,99b\n" - ".long 20b,100b\n" - ".long 21b,101b\n" - ".previous" - : "=d" (sum), "=d" (len), "=a" (src), "=a" (dst), - "=&d" (tmp1), "=d" (tmp2) - : "0" (sum), "1" (len), "2" (src), "3" (dst) - ); - - *csum_err = tmp2; - - return(sum); -} - -EXPORT_SYMBOL(csum_partial_copy_from_user); - - -/* - * copy from kernel space while checksumming, otherwise like csum_partial - */ - -__wsum -csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) -{ - unsigned long tmp1, tmp2; - __asm__("movel %2,%4\n\t" - "btst #1,%4\n\t" /* Check alignment */ - "jeq 2f\n\t" - "subql #2,%1\n\t" /* buff%4==2: treat first word */ - "jgt 1f\n\t" - "addql #2,%1\n\t" /* len was == 2, treat only rest */ - "jra 4f\n" - "1:\t" - "movew %2@+,%4\n\t" /* add first word to sum */ - "addw %4,%0\n\t" - "movew %4,%3@+\n\t" - "clrl %4\n\t" - "addxl %4,%0\n" /* add X bit */ - "2:\t" - /* unrolled loop for the main part: do 8 longs at once */ - "movel %1,%4\n\t" /* save len in tmp1 */ - "lsrl #5,%1\n\t" /* len/32 */ - "jeq 2f\n\t" /* not enough... */ - "subql #1,%1\n" - "1:\t" - "movel %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "movel %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "movel %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "movel %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "movel %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "movel %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "movel %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "movel %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "dbra %1,1b\n\t" - "clrl %5\n\t" - "addxl %5,%0\n\t" /* add X bit */ - "clrw %1\n\t" - "subql #1,%1\n\t" - "jcc 1b\n" - "2:\t" - "movel %4,%1\n\t" /* restore len from tmp1 */ - "andw #0x1c,%4\n\t" /* number of rest longs */ - "jeq 4f\n\t" - "lsrw #2,%4\n\t" - "subqw #1,%4\n" - "3:\t" - /* loop for rest longs */ - "movel %2@+,%5\n\t" - "addxl %5,%0\n\t" - "movel %5,%3@+\n\t" - "dbra %4,3b\n\t" - "clrl %5\n\t" - "addxl %5,%0\n" /* add X bit */ - "4:\t" - /* now check for rest bytes that do not fit into longs */ - "andw #3,%1\n\t" - "jeq 7f\n\t" - "clrl %5\n\t" /* clear tmp2 for rest bytes */ - "subqw #2,%1\n\t" - "jlt 5f\n\t" - "movew %2@+,%5\n\t" /* have rest >= 2: get word */ - "movew %5,%3@+\n\t" - "swap %5\n\t" /* into bits 16..31 */ - "tstw %1\n\t" /* another byte? */ - "jeq 6f\n" - "5:\t" - "moveb %2@,%5\n\t" /* have odd rest: get byte */ - "moveb %5,%3@+\n\t" - "lslw #8,%5\n" /* into bits 8..15; 16..31 untouched */ - "6:\t" - "addl %5,%0\n\t" /* now add rest long to sum */ - "clrl %5\n\t" - "addxl %5,%0\n" /* add X bit */ - "7:\t" - : "=d" (sum), "=d" (len), "=a" (src), "=a" (dst), - "=&d" (tmp1), "=&d" (tmp2) - : "0" (sum), "1" (len), "2" (src), "3" (dst) - ); - return(sum); -} -EXPORT_SYMBOL(csum_partial_copy_nocheck); +#ifdef CONFIG_MMU +#include "checksum_mm.c" +#else +#include "checksum_no.c" +#endif diff --git a/arch/m68k/lib/checksum_mm.c b/arch/m68k/lib/checksum_mm.c new file mode 100644 index 000000000000..6216f12a756b --- /dev/null +++ b/arch/m68k/lib/checksum_mm.c @@ -0,0 +1,425 @@ +/* + * INET An implementation of the TCP/IP protocol suite for the LINUX + * operating system. INET is implemented using the BSD Socket + * interface as the means of communication with the user level. + * + * IP/TCP/UDP checksumming routines + * + * Authors: Jorge Cwik, <jorge@laser.satlink.net> + * Arnt Gulbrandsen, <agulbra@nvg.unit.no> + * Tom May, <ftom@netcom.com> + * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de> + * Lots of code moved from tcp.c and ip.c; see those files + * for more names. + * + * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek: + * Fixed some nasty bugs, causing some horrible crashes. + * A: At some points, the sum (%0) was used as + * length-counter instead of the length counter + * (%1). Thanks to Roman Hodek for pointing this out. + * B: GCC seems to mess up if one uses too many + * data-registers to hold input values and one tries to + * specify d0 and d1 as scratch registers. Letting gcc + * choose these registers itself solves the problem. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * 1998/8/31 Andreas Schwab: + * Zero out rest of buffer on exception in + * csum_partial_copy_from_user. + */ + +#include <linux/module.h> +#include <net/checksum.h> + +/* + * computes a partial checksum, e.g. for TCP/UDP fragments + */ + +__wsum csum_partial(const void *buff, int len, __wsum sum) +{ + unsigned long tmp1, tmp2; + /* + * Experiments with ethernet and slip connections show that buff + * is aligned on either a 2-byte or 4-byte boundary. + */ + __asm__("movel %2,%3\n\t" + "btst #1,%3\n\t" /* Check alignment */ + "jeq 2f\n\t" + "subql #2,%1\n\t" /* buff%4==2: treat first word */ + "jgt 1f\n\t" + "addql #2,%1\n\t" /* len was == 2, treat only rest */ + "jra 4f\n" + "1:\t" + "addw %2@+,%0\n\t" /* add first word to sum */ + "clrl %3\n\t" + "addxl %3,%0\n" /* add X bit */ + "2:\t" + /* unrolled loop for the main part: do 8 longs at once */ + "movel %1,%3\n\t" /* save len in tmp1 */ + "lsrl #5,%1\n\t" /* len/32 */ + "jeq 2f\n\t" /* not enough... */ + "subql #1,%1\n" + "1:\t" + "movel %2@+,%4\n\t" + "addxl %4,%0\n\t" + "movel %2@+,%4\n\t" + "addxl %4,%0\n\t" + "movel %2@+,%4\n\t" + "addxl %4,%0\n\t" + "movel %2@+,%4\n\t" + "addxl %4,%0\n\t" + "movel %2@+,%4\n\t" + "addxl %4,%0\n\t" + "movel %2@+,%4\n\t" + "addxl %4,%0\n\t" + "movel %2@+,%4\n\t" + "addxl %4,%0\n\t" + "movel %2@+,%4\n\t" + "addxl %4,%0\n\t" + "dbra %1,1b\n\t" + "clrl %4\n\t" + "addxl %4,%0\n\t" /* add X bit */ + "clrw %1\n\t" + "subql #1,%1\n\t" + "jcc 1b\n" + "2:\t" + "movel %3,%1\n\t" /* restore len from tmp1 */ + "andw #0x1c,%3\n\t" /* number of rest longs */ + "jeq 4f\n\t" + "lsrw #2,%3\n\t" + "subqw #1,%3\n" + "3:\t" + /* loop for rest longs */ + "movel %2@+,%4\n\t" + "addxl %4,%0\n\t" + "dbra %3,3b\n\t" + "clrl %4\n\t" + "addxl %4,%0\n" /* add X bit */ + "4:\t" + /* now check for rest bytes that do not fit into longs */ + "andw #3,%1\n\t" + "jeq 7f\n\t" + "clrl %4\n\t" /* clear tmp2 for rest bytes */ + "subqw #2,%1\n\t" + "jlt 5f\n\t" + "movew %2@+,%4\n\t" /* have rest >= 2: get word */ + "swap %4\n\t" /* into bits 16..31 */ + "tstw %1\n\t" /* another byte? */ + "jeq 6f\n" + "5:\t" + "moveb %2@,%4\n\t" /* have odd rest: get byte */ + "lslw #8,%4\n\t" /* into bits 8..15; 16..31 untouched */ + "6:\t" + "addl %4,%0\n\t" /* now add rest long to sum */ + "clrl %4\n\t" + "addxl %4,%0\n" /* add X bit */ + "7:\t" + : "=d" (sum), "=d" (len), "=a" (buff), + "=&d" (tmp1), "=&d" (tmp2) + : "0" (sum), "1" (len), "2" (buff) + ); + return(sum); +} + +EXPORT_SYMBOL(csum_partial); + + +/* + * copy from user space while checksumming, with exception handling. + */ + +__wsum +csum_partial_copy_from_user(const void __user *src, void *dst, + int len, __wsum sum, int *csum_err) +{ + /* + * GCC doesn't like more than 10 operands for the asm + * statements so we have to use tmp2 for the error + * code. + */ + unsigned long tmp1, tmp2; + + __asm__("movel %2,%4\n\t" + "btst #1,%4\n\t" /* Check alignment */ + "jeq 2f\n\t" + "subql #2,%1\n\t" /* buff%4==2: treat first word */ + "jgt 1f\n\t" + "addql #2,%1\n\t" /* len was == 2, treat only rest */ + "jra 4f\n" + "1:\n" + "10:\t" + "movesw %2@+,%4\n\t" /* add first word to sum */ + "addw %4,%0\n\t" + "movew %4,%3@+\n\t" + "clrl %4\n\t" + "addxl %4,%0\n" /* add X bit */ + "2:\t" + /* unrolled loop for the main part: do 8 longs at once */ + "movel %1,%4\n\t" /* save len in tmp1 */ + "lsrl #5,%1\n\t" /* len/32 */ + "jeq 2f\n\t" /* not enough... */ + "subql #1,%1\n" + "1:\n" + "11:\t" + "movesl %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "12:\t" + "movesl %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "13:\t" + "movesl %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "14:\t" + "movesl %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "15:\t" + "movesl %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "16:\t" + "movesl %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "17:\t" + "movesl %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "18:\t" + "movesl %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "dbra %1,1b\n\t" + "clrl %5\n\t" + "addxl %5,%0\n\t" /* add X bit */ + "clrw %1\n\t" + "subql #1,%1\n\t" + "jcc 1b\n" + "2:\t" + "movel %4,%1\n\t" /* restore len from tmp1 */ + "andw #0x1c,%4\n\t" /* number of rest longs */ + "jeq 4f\n\t" + "lsrw #2,%4\n\t" + "subqw #1,%4\n" + "3:\n" + /* loop for rest longs */ + "19:\t" + "movesl %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "dbra %4,3b\n\t" + "clrl %5\n\t" + "addxl %5,%0\n" /* add X bit */ + "4:\t" + /* now check for rest bytes that do not fit into longs */ + "andw #3,%1\n\t" + "jeq 7f\n\t" + "clrl %5\n\t" /* clear tmp2 for rest bytes */ + "subqw #2,%1\n\t" + "jlt 5f\n\t" + "20:\t" + "movesw %2@+,%5\n\t" /* have rest >= 2: get word */ + "movew %5,%3@+\n\t" + "swap %5\n\t" /* into bits 16..31 */ + "tstw %1\n\t" /* another byte? */ + "jeq 6f\n" + "5:\n" + "21:\t" + "movesb %2@,%5\n\t" /* have odd rest: get byte */ + "moveb %5,%3@+\n\t" + "lslw #8,%5\n\t" /* into bits 8..15; 16..31 untouched */ + "6:\t" + "addl %5,%0\n\t" /* now add rest long to sum */ + "clrl %5\n\t" + "addxl %5,%0\n\t" /* add X bit */ + "7:\t" + "clrl %5\n" /* no error - clear return value */ + "8:\n" + ".section .fixup,\"ax\"\n" + ".even\n" + /* If any exception occurs zero out the rest. + Similarities with the code above are intentional :-) */ + "90:\t" + "clrw %3@+\n\t" + "movel %1,%4\n\t" + "lsrl #5,%1\n\t" + "jeq 1f\n\t" + "subql #1,%1\n" + "91:\t" + "clrl %3@+\n" + "92:\t" + "clrl %3@+\n" + "93:\t" + "clrl %3@+\n" + "94:\t" + "clrl %3@+\n" + "95:\t" + "clrl %3@+\n" + "96:\t" + "clrl %3@+\n" + "97:\t" + "clrl %3@+\n" + "98:\t" + "clrl %3@+\n\t" + "dbra %1,91b\n\t" + "clrw %1\n\t" + "subql #1,%1\n\t" + "jcc 91b\n" + "1:\t" + "movel %4,%1\n\t" + "andw #0x1c,%4\n\t" + "jeq 1f\n\t" + "lsrw #2,%4\n\t" + "subqw #1,%4\n" + "99:\t" + "clrl %3@+\n\t" + "dbra %4,99b\n\t" + "1:\t" + "andw #3,%1\n\t" + "jeq 9f\n" + "100:\t" + "clrw %3@+\n\t" + "tstw %1\n\t" + "jeq 9f\n" + "101:\t" + "clrb %3@+\n" + "9:\t" +#define STR(X) STR1(X) +#define STR1(X) #X + "moveq #-" STR(EFAULT) ",%5\n\t" + "jra 8b\n" + ".previous\n" + ".section __ex_table,\"a\"\n" + ".long 10b,90b\n" + ".long 11b,91b\n" + ".long 12b,92b\n" + ".long 13b,93b\n" + ".long 14b,94b\n" + ".long 15b,95b\n" + ".long 16b,96b\n" + ".long 17b,97b\n" + ".long 18b,98b\n" + ".long 19b,99b\n" + ".long 20b,100b\n" + ".long 21b,101b\n" + ".previous" + : "=d" (sum), "=d" (len), "=a" (src), "=a" (dst), + "=&d" (tmp1), "=d" (tmp2) + : "0" (sum), "1" (len), "2" (src), "3" (dst) + ); + + *csum_err = tmp2; + + return(sum); +} + +EXPORT_SYMBOL(csum_partial_copy_from_user); + + +/* + * copy from kernel space while checksumming, otherwise like csum_partial + */ + +__wsum +csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) +{ + unsigned long tmp1, tmp2; + __asm__("movel %2,%4\n\t" + "btst #1,%4\n\t" /* Check alignment */ + "jeq 2f\n\t" + "subql #2,%1\n\t" /* buff%4==2: treat first word */ + "jgt 1f\n\t" + "addql #2,%1\n\t" /* len was == 2, treat only rest */ + "jra 4f\n" + "1:\t" + "movew %2@+,%4\n\t" /* add first word to sum */ + "addw %4,%0\n\t" + "movew %4,%3@+\n\t" + "clrl %4\n\t" + "addxl %4,%0\n" /* add X bit */ + "2:\t" + /* unrolled loop for the main part: do 8 longs at once */ + "movel %1,%4\n\t" /* save len in tmp1 */ + "lsrl #5,%1\n\t" /* len/32 */ + "jeq 2f\n\t" /* not enough... */ + "subql #1,%1\n" + "1:\t" + "movel %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "movel %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "movel %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "movel %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "movel %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "movel %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "movel %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "movel %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "dbra %1,1b\n\t" + "clrl %5\n\t" + "addxl %5,%0\n\t" /* add X bit */ + "clrw %1\n\t" + "subql #1,%1\n\t" + "jcc 1b\n" + "2:\t" + "movel %4,%1\n\t" /* restore len from tmp1 */ + "andw #0x1c,%4\n\t" /* number of rest longs */ + "jeq 4f\n\t" + "lsrw #2,%4\n\t" + "subqw #1,%4\n" + "3:\t" + /* loop for rest longs */ + "movel %2@+,%5\n\t" + "addxl %5,%0\n\t" + "movel %5,%3@+\n\t" + "dbra %4,3b\n\t" + "clrl %5\n\t" + "addxl %5,%0\n" /* add X bit */ + "4:\t" + /* now check for rest bytes that do not fit into longs */ + "andw #3,%1\n\t" + "jeq 7f\n\t" + "clrl %5\n\t" /* clear tmp2 for rest bytes */ + "subqw #2,%1\n\t" + "jlt 5f\n\t" + "movew %2@+,%5\n\t" /* have rest >= 2: get word */ + "movew %5,%3@+\n\t" + "swap %5\n\t" /* into bits 16..31 */ + "tstw %1\n\t" /* another byte? */ + "jeq 6f\n" + "5:\t" + "moveb %2@,%5\n\t" /* have odd rest: get byte */ + "moveb %5,%3@+\n\t" + "lslw #8,%5\n" /* into bits 8..15; 16..31 untouched */ + "6:\t" + "addl %5,%0\n\t" /* now add rest long to sum */ + "clrl %5\n\t" + "addxl %5,%0\n" /* add X bit */ + "7:\t" + : "=d" (sum), "=d" (len), "=a" (src), "=a" (dst), + "=&d" (tmp1), "=&d" (tmp2) + : "0" (sum), "1" (len), "2" (src), "3" (dst) + ); + return(sum); +} +EXPORT_SYMBOL(csum_partial_copy_nocheck); diff --git a/arch/m68k/lib/checksum_no.c b/arch/m68k/lib/checksum_no.c new file mode 100644 index 000000000000..eccf25d3d73e --- /dev/null +++ b/arch/m68k/lib/checksum_no.c @@ -0,0 +1,153 @@ +/* + * INET An implementation of the TCP/IP protocol suite for the LINUX + * operating system. INET is implemented using the BSD Socket + * interface as the means of communication with the user level. + * + * IP/TCP/UDP checksumming routines + * + * Authors: Jorge Cwik, <jorge@laser.satlink.net> + * Arnt Gulbrandsen, <agulbra@nvg.unit.no> + * Tom May, <ftom@netcom.com> + * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de> + * Lots of code moved from tcp.c and ip.c; see those files + * for more names. + * + * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek: + * Fixed some nasty bugs, causing some horrible crashes. + * A: At some points, the sum (%0) was used as + * length-counter instead of the length counter + * (%1). Thanks to Roman Hodek for pointing this out. + * B: GCC seems to mess up if one uses too many + * data-registers to hold input values and one tries to + * specify d0 and d1 as scratch registers. Letting gcc choose these + * registers itself solves the problem. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access kills, so most + of the assembly has to go. */ + +#include <linux/module.h> +#include <net/checksum.h> + +static inline unsigned short from32to16(unsigned long x) +{ + /* add up 16-bit and 16-bit for 16+c bit */ + x = (x & 0xffff) + (x >> 16); + /* add up carry.. */ + x = (x & 0xffff) + (x >> 16); + return x; +} + +static unsigned long do_csum(const unsigned char * buff, int len) +{ + int odd, count; + unsigned long result = 0; + + if (len <= 0) + goto out; + odd = 1 & (unsigned long) buff; + if (odd) { + result = *buff; + len--; + buff++; + } + count = len >> 1; /* nr of 16-bit words.. */ + if (count) { + if (2 & (unsigned long) buff) { + result += *(unsigned short *) buff; + count--; + len -= 2; + buff += 2; + } + count >>= 1; /* nr of 32-bit words.. */ + if (count) { + unsigned long carry = 0; + do { + unsigned long w = *(unsigned long *) buff; + count--; + buff += 4; + result += carry; + result += w; + carry = (w > result); + } while (count); + result += carry; + result = (result & 0xffff) + (result >> 16); + } + if (len & 2) { + result += *(unsigned short *) buff; + buff += 2; + } + } + if (len & 1) + result += (*buff << 8); + result = from32to16(result); + if (odd) + result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); +out: + return result; +} + +#ifdef CONFIG_COLDFIRE +/* + * This is a version of ip_compute_csum() optimized for IP headers, + * which always checksum on 4 octet boundaries. + */ +__sum16 ip_fast_csum(const void *iph, unsigned int ihl) +{ + return (__force __sum16)~do_csum(iph,ihl*4); +} +#endif + +/* + * computes the checksum of a memory block at buff, length len, + * and adds in "sum" (32-bit) + * + * returns a 32-bit number suitable for feeding into itself + * or csum_tcpudp_magic + * + * this function must be called with even lengths, except + * for the last fragment, which may be odd + * + * it's best to have buff aligned on a 32-bit boundary + */ +__wsum csum_partial(const void *buff, int len, __wsum sum) +{ + unsigned int result = do_csum(buff, len); + + /* add in old sum, and carry.. */ + result += (__force u32)sum; + if ((__force u32)sum > result) + result += 1; + return (__force __wsum)result; +} + +EXPORT_SYMBOL(csum_partial); + +/* + * copy from fs while checksumming, otherwise like csum_partial + */ + +__wsum +csum_partial_copy_from_user(const void __user *src, void *dst, + int len, __wsum sum, int *csum_err) +{ + if (csum_err) *csum_err = 0; + memcpy(dst, (__force const void *)src, len); + return csum_partial(dst, len, sum); +} + +/* + * copy from ds while checksumming, otherwise like csum_partial + */ + +__wsum +csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) +{ + memcpy(dst, src, len); + return csum_partial(dst, len, sum); +} diff --git a/arch/m68k/lib/delay.c b/arch/m68k/lib/delay.c new file mode 100644 index 000000000000..5bd5472d38a0 --- /dev/null +++ b/arch/m68k/lib/delay.c @@ -0,0 +1,21 @@ +/* + * arch/m68knommu/lib/delay.c + * + * (C) Copyright 2004, Greg Ungerer <gerg@snapgear.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <asm/param.h> +#include <asm/delay.h> + +EXPORT_SYMBOL(udelay); + +void udelay(unsigned long usecs) +{ + _udelay(usecs); +} + diff --git a/arch/m68k/lib/divsi3.S b/arch/m68k/lib/divsi3.S new file mode 100644 index 000000000000..ec307b61991e --- /dev/null +++ b/arch/m68k/lib/divsi3.S @@ -0,0 +1,125 @@ +/* libgcc1 routines for 68000 w/o floating-point hardware. + Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file with other programs, and to distribute +those programs without any restriction coming from the use of this +file. (The General Public License restrictions do apply in other +respects; for example, they cover modification of the file, and +distribution when not linked into another program.) + +This file is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +/* Use this one for any 680x0; assumes no floating point hardware. + The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. + Some of this code comes from MINIX, via the folks at ericsson. + D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 +*/ + +/* These are predefined by new versions of GNU cpp. */ + +#ifndef __USER_LABEL_PREFIX__ +#define __USER_LABEL_PREFIX__ _ +#endif + +#ifndef __REGISTER_PREFIX__ +#define __REGISTER_PREFIX__ +#endif + +#ifndef __IMMEDIATE_PREFIX__ +#define __IMMEDIATE_PREFIX__ # +#endif + +/* ANSI concatenation macros. */ + +#define CONCAT1(a, b) CONCAT2(a, b) +#define CONCAT2(a, b) a ## b + +/* Use the right prefix for global labels. */ + +#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) + +/* Use the right prefix for registers. */ + +#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) + +/* Use the right prefix for immediate values. */ + +#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) + +#define d0 REG (d0) +#define d1 REG (d1) +#define d2 REG (d2) +#define d3 REG (d3) +#define d4 REG (d4) +#define d5 REG (d5) +#define d6 REG (d6) +#define d7 REG (d7) +#define a0 REG (a0) +#define a1 REG (a1) +#define a2 REG (a2) +#define a3 REG (a3) +#define a4 REG (a4) +#define a5 REG (a5) +#define a6 REG (a6) +#define fp REG (fp) +#define sp REG (sp) + + .text + .proc + .globl SYM (__divsi3) +SYM (__divsi3): + movel d2, sp@- + + moveq IMM (1), d2 /* sign of result stored in d2 (=1 or =-1) */ + movel sp@(12), d1 /* d1 = divisor */ + jpl L1 + negl d1 +#if !(defined(__mcf5200__) || defined(__mcoldfire__)) + negb d2 /* change sign because divisor <0 */ +#else + negl d2 /* change sign because divisor <0 */ +#endif +L1: movel sp@(8), d0 /* d0 = dividend */ + jpl L2 + negl d0 +#if !(defined(__mcf5200__) || defined(__mcoldfire__)) + negb d2 +#else + negl d2 +#endif + +L2: movel d1, sp@- + movel d0, sp@- + jbsr SYM (__udivsi3) /* divide abs(dividend) by abs(divisor) */ + addql IMM (8), sp + + tstb d2 + jpl L3 + negl d0 + +L3: movel sp@+, d2 + rts + diff --git a/arch/m68k/lib/memcpy.c b/arch/m68k/lib/memcpy.c new file mode 100644 index 000000000000..b50dbcad4746 --- /dev/null +++ b/arch/m68k/lib/memcpy.c @@ -0,0 +1,62 @@ + +#include <linux/types.h> + +void * memcpy(void * to, const void * from, size_t n) +{ +#ifdef CONFIG_COLDFIRE + void *xto = to; + size_t temp; + + if (!n) + return xto; + if ((long) to & 1) + { + char *cto = to; + const char *cfrom = from; + *cto++ = *cfrom++; + to = cto; + from = cfrom; + n--; + } + if (n > 2 && (long) to & 2) + { + short *sto = to; + const short *sfrom = from; + *sto++ = *sfrom++; + to = sto; + from = sfrom; + n -= 2; + } + temp = n >> 2; + if (temp) + { + long *lto = to; + const long *lfrom = from; + for (; temp; temp--) + *lto++ = *lfrom++; + to = lto; + from = lfrom; + } + if (n & 2) + { + short *sto = to; + const short *sfrom = from; + *sto++ = *sfrom++; + to = sto; + from = sfrom; + } + if (n & 1) + { + char *cto = to; + const char *cfrom = from; + *cto = *cfrom; + } + return xto; +#else + const char *c_from = from; + char *c_to = to; + while (n-- > 0) + *c_to++ = *c_from++; + return((void *) to); +#endif +} diff --git a/arch/m68k/lib/memmove.c b/arch/m68k/lib/memmove.c new file mode 100644 index 000000000000..b3dcfe9dab7e --- /dev/null +++ b/arch/m68k/lib/memmove.c @@ -0,0 +1,105 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#define __IN_STRING_C + +#include <linux/module.h> +#include <linux/string.h> + +void *memmove(void *dest, const void *src, size_t n) +{ + void *xdest = dest; + size_t temp; + + if (!n) + return xdest; + + if (dest < src) { + if ((long)dest & 1) { + char *cdest = dest; + const char *csrc = src; + *cdest++ = *csrc++; + dest = cdest; + src = csrc; + n--; + } + if (n > 2 && (long)dest & 2) { + short *sdest = dest; + const short *ssrc = src; + *sdest++ = *ssrc++; + dest = sdest; + src = ssrc; + n -= 2; + } + temp = n >> 2; + if (temp) { + long *ldest = dest; + const long *lsrc = src; + temp--; + do + *ldest++ = *lsrc++; + while (temp--); + dest = ldest; + src = lsrc; + } + if (n & 2) { + short *sdest = dest; + const short *ssrc = src; + *sdest++ = *ssrc++; + dest = sdest; + src = ssrc; + } + if (n & 1) { + char *cdest = dest; + const char *csrc = src; + *cdest = *csrc; + } + } else { + dest = (char *)dest + n; + src = (const char *)src + n; + if ((long)dest & 1) { + char *cdest = dest; + const char *csrc = src; + *--cdest = *--csrc; + dest = cdest; + src = csrc; + n--; + } + if (n > 2 && (long)dest & 2) { + short *sdest = dest; + const short *ssrc = src; + *--sdest = *--ssrc; + dest = sdest; + src = ssrc; + n -= 2; + } + temp = n >> 2; + if (temp) { + long *ldest = dest; + const long *lsrc = src; + temp--; + do + *--ldest = *--lsrc; + while (temp--); + dest = ldest; + src = lsrc; + } + if (n & 2) { + short *sdest = dest; + const short *ssrc = src; + *--sdest = *--ssrc; + dest = sdest; + src = ssrc; + } + if (n & 1) { + char *cdest = dest; + const char *csrc = src; + *--cdest = *--csrc; + } + } + return xdest; +} +EXPORT_SYMBOL(memmove); diff --git a/arch/m68k/lib/memset.c b/arch/m68k/lib/memset.c new file mode 100644 index 000000000000..1389bf455633 --- /dev/null +++ b/arch/m68k/lib/memset.c @@ -0,0 +1,47 @@ +#include <linux/types.h> + +void * memset(void * s, int c, size_t count) +{ + void *xs = s; + size_t temp; + + if (!count) + return xs; + c &= 0xff; + c |= c << 8; + c |= c << 16; + if ((long) s & 1) + { + char *cs = s; + *cs++ = c; + s = cs; + count--; + } + if (count > 2 && (long) s & 2) + { + short *ss = s; + *ss++ = c; + s = ss; + count -= 2; + } + temp = count >> 2; + if (temp) + { + long *ls = s; + for (; temp; temp--) + *ls++ = c; + s = ls; + } + if (count & 2) + { + short *ss = s; + *ss++ = c; + s = ss; + } + if (count & 1) + { + char *cs = s; + *cs = c; + } + return xs; +} diff --git a/arch/m68k/lib/modsi3.S b/arch/m68k/lib/modsi3.S new file mode 100644 index 000000000000..ef3849435768 --- /dev/null +++ b/arch/m68k/lib/modsi3.S @@ -0,0 +1,113 @@ +/* libgcc1 routines for 68000 w/o floating-point hardware. + Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file with other programs, and to distribute +those programs without any restriction coming from the use of this +file. (The General Public License restrictions do apply in other +respects; for example, they cover modification of the file, and +distribution when not linked into another program.) + +This file is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +/* Use this one for any 680x0; assumes no floating point hardware. + The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. + Some of this code comes from MINIX, via the folks at ericsson. + D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 +*/ + +/* These are predefined by new versions of GNU cpp. */ + +#ifndef __USER_LABEL_PREFIX__ +#define __USER_LABEL_PREFIX__ _ +#endif + +#ifndef __REGISTER_PREFIX__ +#define __REGISTER_PREFIX__ +#endif + +#ifndef __IMMEDIATE_PREFIX__ +#define __IMMEDIATE_PREFIX__ # +#endif + +/* ANSI concatenation macros. */ + +#define CONCAT1(a, b) CONCAT2(a, b) +#define CONCAT2(a, b) a ## b + +/* Use the right prefix for global labels. */ + +#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) + +/* Use the right prefix for registers. */ + +#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) + +/* Use the right prefix for immediate values. */ + +#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) + +#define d0 REG (d0) +#define d1 REG (d1) +#define d2 REG (d2) +#define d3 REG (d3) +#define d4 REG (d4) +#define d5 REG (d5) +#define d6 REG (d6) +#define d7 REG (d7) +#define a0 REG (a0) +#define a1 REG (a1) +#define a2 REG (a2) +#define a3 REG (a3) +#define a4 REG (a4) +#define a5 REG (a5) +#define a6 REG (a6) +#define fp REG (fp) +#define sp REG (sp) + + .text + .proc + .globl SYM (__modsi3) +SYM (__modsi3): + movel sp@(8), d1 /* d1 = divisor */ + movel sp@(4), d0 /* d0 = dividend */ + movel d1, sp@- + movel d0, sp@- + jbsr SYM (__divsi3) + addql IMM (8), sp + movel sp@(8), d1 /* d1 = divisor */ +#if !(defined(__mcf5200__) || defined(__mcoldfire__)) + movel d1, sp@- + movel d0, sp@- + jbsr SYM (__mulsi3) /* d0 = (a/b)*b */ + addql IMM (8), sp +#else + mulsl d1,d0 +#endif + movel sp@(4), d1 /* d1 = dividend */ + subl d0, d1 /* d1 = a - (a/b)*b */ + movel d1, d0 + rts + diff --git a/arch/m68k/lib/muldi3.c b/arch/m68k/lib/muldi3.c index be4f275649e3..16e0eb338ee0 100644 --- a/arch/m68k/lib/muldi3.c +++ b/arch/m68k/lib/muldi3.c @@ -1,63 +1,5 @@ -/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and - gcc-2.7.2.3/longlong.h which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -#define umul_ppmm(w1, w0, u, v) \ - __asm__ ("mulu%.l %3,%1:%0" \ - : "=d" ((USItype)(w0)), \ - "=d" ((USItype)(w1)) \ - : "%0" ((USItype)(u)), \ - "dmi" ((USItype)(v))) - -#define __umulsidi3(u, v) \ - ({DIunion __w; \ - umul_ppmm (__w.s.high, __w.s.low, u, v); \ - __w.ll; }) - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); - -struct DIstruct {SItype high, low;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - -DItype -__muldi3 (DItype u, DItype v) -{ - DIunion w; - DIunion uu, vv; - - uu.ll = u, - vv.ll = v; - - w.ll = __umulsidi3 (uu.s.low, vv.s.low); - w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high - + (USItype) uu.s.high * (USItype) vv.s.low); - - return w.ll; -} +#ifdef CONFIG_MMU +#include "muldi3_mm.c" +#else +#include "muldi3_no.c" +#endif diff --git a/arch/m68k/lib/muldi3_mm.c b/arch/m68k/lib/muldi3_mm.c new file mode 100644 index 000000000000..be4f275649e3 --- /dev/null +++ b/arch/m68k/lib/muldi3_mm.c @@ -0,0 +1,63 @@ +/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and + gcc-2.7.2.3/longlong.h which is: */ +/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#define BITS_PER_UNIT 8 + +#define umul_ppmm(w1, w0, u, v) \ + __asm__ ("mulu%.l %3,%1:%0" \ + : "=d" ((USItype)(w0)), \ + "=d" ((USItype)(w1)) \ + : "%0" ((USItype)(u)), \ + "dmi" ((USItype)(v))) + +#define __umulsidi3(u, v) \ + ({DIunion __w; \ + umul_ppmm (__w.s.high, __w.s.low, u, v); \ + __w.ll; }) + +typedef int SItype __attribute__ ((mode (SI))); +typedef unsigned int USItype __attribute__ ((mode (SI))); +typedef int DItype __attribute__ ((mode (DI))); +typedef int word_type __attribute__ ((mode (__word__))); + +struct DIstruct {SItype high, low;}; + +typedef union +{ + struct DIstruct s; + DItype ll; +} DIunion; + +DItype +__muldi3 (DItype u, DItype v) +{ + DIunion w; + DIunion uu, vv; + + uu.ll = u, + vv.ll = v; + + w.ll = __umulsidi3 (uu.s.low, vv.s.low); + w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high + + (USItype) uu.s.high * (USItype) vv.s.low); + + return w.ll; +} diff --git a/arch/m68k/lib/muldi3_no.c b/arch/m68k/lib/muldi3_no.c new file mode 100644 index 000000000000..34af72c30303 --- /dev/null +++ b/arch/m68k/lib/muldi3_no.c @@ -0,0 +1,86 @@ +/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and + gcc-2.7.2.3/longlong.h which is: */ +/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#define BITS_PER_UNIT 8 +#define SI_TYPE_SIZE 32 + +#define __BITS4 (SI_TYPE_SIZE / 4) +#define __ll_B (1L << (SI_TYPE_SIZE / 2)) +#define __ll_lowpart(t) ((USItype) (t) % __ll_B) +#define __ll_highpart(t) ((USItype) (t) / __ll_B) + +#define umul_ppmm(w1, w0, u, v) \ + do { \ + USItype __x0, __x1, __x2, __x3; \ + USItype __ul, __vl, __uh, __vh; \ + \ + __ul = __ll_lowpart (u); \ + __uh = __ll_highpart (u); \ + __vl = __ll_lowpart (v); \ + __vh = __ll_highpart (v); \ + \ + __x0 = (USItype) __ul * __vl; \ + __x1 = (USItype) __ul * __vh; \ + __x2 = (USItype) __uh * __vl; \ + __x3 = (USItype) __uh * __vh; \ + \ + __x1 += __ll_highpart (__x0);/* this can't give carry */ \ + __x1 += __x2; /* but this indeed can */ \ + if (__x1 < __x2) /* did we get it? */ \ + __x3 += __ll_B; /* yes, add it in the proper pos. */ \ + \ + (w1) = __x3 + __ll_highpart (__x1); \ + (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \ + } while (0) + +#define __umulsidi3(u, v) \ + ({DIunion __w; \ + umul_ppmm (__w.s.high, __w.s.low, u, v); \ + __w.ll; }) + +typedef int SItype __attribute__ ((mode (SI))); +typedef unsigned int USItype __attribute__ ((mode (SI))); +typedef int DItype __attribute__ ((mode (DI))); +typedef int word_type __attribute__ ((mode (__word__))); + +struct DIstruct {SItype high, low;}; + +typedef union +{ + struct DIstruct s; + DItype ll; +} DIunion; + +DItype +__muldi3 (DItype u, DItype v) +{ + DIunion w; + DIunion uu, vv; + + uu.ll = u, + vv.ll = v; + + w.ll = __umulsidi3 (uu.s.low, vv.s.low); + w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high + + (USItype) uu.s.high * (USItype) vv.s.low); + + return w.ll; +} diff --git a/arch/m68k/lib/mulsi3.S b/arch/m68k/lib/mulsi3.S new file mode 100644 index 000000000000..ce29ea37b45f --- /dev/null +++ b/arch/m68k/lib/mulsi3.S @@ -0,0 +1,110 @@ +/* libgcc1 routines for 68000 w/o floating-point hardware. + Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file with other programs, and to distribute +those programs without any restriction coming from the use of this +file. (The General Public License restrictions do apply in other +respects; for example, they cover modification of the file, and +distribution when not linked into another program.) + +This file is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +/* Use this one for any 680x0; assumes no floating point hardware. + The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. + Some of this code comes from MINIX, via the folks at ericsson. + D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 +*/ + +/* These are predefined by new versions of GNU cpp. */ + +#ifndef __USER_LABEL_PREFIX__ +#define __USER_LABEL_PREFIX__ _ +#endif + +#ifndef __REGISTER_PREFIX__ +#define __REGISTER_PREFIX__ +#endif + +#ifndef __IMMEDIATE_PREFIX__ +#define __IMMEDIATE_PREFIX__ # +#endif + +/* ANSI concatenation macros. */ + +#define CONCAT1(a, b) CONCAT2(a, b) +#define CONCAT2(a, b) a ## b + +/* Use the right prefix for global labels. */ + +#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) + +/* Use the right prefix for registers. */ + +#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) + +/* Use the right prefix for immediate values. */ + +#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) + +#define d0 REG (d0) +#define d1 REG (d1) +#define d2 REG (d2) +#define d3 REG (d3) +#define d4 REG (d4) +#define d5 REG (d5) +#define d6 REG (d6) +#define d7 REG (d7) +#define a0 REG (a0) +#define a1 REG (a1) +#define a2 REG (a2) +#define a3 REG (a3) +#define a4 REG (a4) +#define a5 REG (a5) +#define a6 REG (a6) +#define fp REG (fp) +#define sp REG (sp) + + .text + .proc + .globl SYM (__mulsi3) +SYM (__mulsi3): + movew sp@(4), d0 /* x0 -> d0 */ + muluw sp@(10), d0 /* x0*y1 */ + movew sp@(6), d1 /* x1 -> d1 */ + muluw sp@(8), d1 /* x1*y0 */ +#if !(defined(__mcf5200__) || defined(__mcoldfire__)) + addw d1, d0 +#else + addl d1, d0 +#endif + swap d0 + clrw d0 + movew sp@(6), d1 /* x1 -> d1 */ + muluw sp@(10), d1 /* x1*y1 */ + addl d1, d0 + + rts + diff --git a/arch/m68k/lib/udivsi3.S b/arch/m68k/lib/udivsi3.S new file mode 100644 index 000000000000..c424c4a1f0a3 --- /dev/null +++ b/arch/m68k/lib/udivsi3.S @@ -0,0 +1,162 @@ +/* libgcc1 routines for 68000 w/o floating-point hardware. + Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file with other programs, and to distribute +those programs without any restriction coming from the use of this +file. (The General Public License restrictions do apply in other +respects; for example, they cover modification of the file, and +distribution when not linked into another program.) + +This file is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +/* Use this one for any 680x0; assumes no floating point hardware. + The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. + Some of this code comes from MINIX, via the folks at ericsson. + D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 +*/ + +/* These are predefined by new versions of GNU cpp. */ + +#ifndef __USER_LABEL_PREFIX__ +#define __USER_LABEL_PREFIX__ _ +#endif + +#ifndef __REGISTER_PREFIX__ +#define __REGISTER_PREFIX__ +#endif + +#ifndef __IMMEDIATE_PREFIX__ +#define __IMMEDIATE_PREFIX__ # +#endif + +/* ANSI concatenation macros. */ + +#define CONCAT1(a, b) CONCAT2(a, b) +#define CONCAT2(a, b) a ## b + +/* Use the right prefix for global labels. */ + +#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) + +/* Use the right prefix for registers. */ + +#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) + +/* Use the right prefix for immediate values. */ + +#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) + +#define d0 REG (d0) +#define d1 REG (d1) +#define d2 REG (d2) +#define d3 REG (d3) +#define d4 REG (d4) +#define d5 REG (d5) +#define d6 REG (d6) +#define d7 REG (d7) +#define a0 REG (a0) +#define a1 REG (a1) +#define a2 REG (a2) +#define a3 REG (a3) +#define a4 REG (a4) +#define a5 REG (a5) +#define a6 REG (a6) +#define fp REG (fp) +#define sp REG (sp) + + .text + .proc + .globl SYM (__udivsi3) +SYM (__udivsi3): +#if !(defined(__mcf5200__) || defined(__mcoldfire__)) + movel d2, sp@- + movel sp@(12), d1 /* d1 = divisor */ + movel sp@(8), d0 /* d0 = dividend */ + + cmpl IMM (0x10000), d1 /* divisor >= 2 ^ 16 ? */ + jcc L3 /* then try next algorithm */ + movel d0, d2 + clrw d2 + swap d2 + divu d1, d2 /* high quotient in lower word */ + movew d2, d0 /* save high quotient */ + swap d0 + movew sp@(10), d2 /* get low dividend + high rest */ + divu d1, d2 /* low quotient */ + movew d2, d0 + jra L6 + +L3: movel d1, d2 /* use d2 as divisor backup */ +L4: lsrl IMM (1), d1 /* shift divisor */ + lsrl IMM (1), d0 /* shift dividend */ + cmpl IMM (0x10000), d1 /* still divisor >= 2 ^ 16 ? */ + jcc L4 + divu d1, d0 /* now we have 16 bit divisor */ + andl IMM (0xffff), d0 /* mask out divisor, ignore remainder */ + +/* Multiply the 16 bit tentative quotient with the 32 bit divisor. Because of + the operand ranges, this might give a 33 bit product. If this product is + greater than the dividend, the tentative quotient was too large. */ + movel d2, d1 + mulu d0, d1 /* low part, 32 bits */ + swap d2 + mulu d0, d2 /* high part, at most 17 bits */ + swap d2 /* align high part with low part */ + tstw d2 /* high part 17 bits? */ + jne L5 /* if 17 bits, quotient was too large */ + addl d2, d1 /* add parts */ + jcs L5 /* if sum is 33 bits, quotient was too large */ + cmpl sp@(8), d1 /* compare the sum with the dividend */ + jls L6 /* if sum > dividend, quotient was too large */ +L5: subql IMM (1), d0 /* adjust quotient */ + +L6: movel sp@+, d2 + rts + +#else /* __mcf5200__ || __mcoldfire__ */ + +/* Coldfire implementation of non-restoring division algorithm from + Hennessy & Patterson, Appendix A. */ + link a6,IMM (-12) + moveml d2-d4,sp@ + movel a6@(8),d0 + movel a6@(12),d1 + clrl d2 | clear p + moveq IMM (31),d4 +L1: addl d0,d0 | shift reg pair (p,a) one bit left + addxl d2,d2 + movl d2,d3 | subtract b from p, store in tmp. + subl d1,d3 + jcs L2 | if no carry, + bset IMM (0),d0 | set the low order bit of a to 1, + movl d3,d2 | and store tmp in p. +L2: subql IMM (1),d4 + jcc L1 + moveml sp@,d2-d4 | restore data registers + unlk a6 | and return + rts +#endif /* __mcf5200__ || __mcoldfire__ */ + diff --git a/arch/m68k/lib/umodsi3.S b/arch/m68k/lib/umodsi3.S new file mode 100644 index 000000000000..5def5f626478 --- /dev/null +++ b/arch/m68k/lib/umodsi3.S @@ -0,0 +1,113 @@ +/* libgcc1 routines for 68000 w/o floating-point hardware. + Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file with other programs, and to distribute +those programs without any restriction coming from the use of this +file. (The General Public License restrictions do apply in other +respects; for example, they cover modification of the file, and +distribution when not linked into another program.) + +This file is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* As a special exception, if you link this library with files + compiled with GCC to produce an executable, this does not cause + the resulting executable to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public License. */ + +/* Use this one for any 680x0; assumes no floating point hardware. + The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. + Some of this code comes from MINIX, via the folks at ericsson. + D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 +*/ + +/* These are predefined by new versions of GNU cpp. */ + +#ifndef __USER_LABEL_PREFIX__ +#define __USER_LABEL_PREFIX__ _ +#endif + +#ifndef __REGISTER_PREFIX__ +#define __REGISTER_PREFIX__ +#endif + +#ifndef __IMMEDIATE_PREFIX__ +#define __IMMEDIATE_PREFIX__ # +#endif + +/* ANSI concatenation macros. */ + +#define CONCAT1(a, b) CONCAT2(a, b) +#define CONCAT2(a, b) a ## b + +/* Use the right prefix for global labels. */ + +#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) + +/* Use the right prefix for registers. */ + +#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) + +/* Use the right prefix for immediate values. */ + +#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) + +#define d0 REG (d0) +#define d1 REG (d1) +#define d2 REG (d2) +#define d3 REG (d3) +#define d4 REG (d4) +#define d5 REG (d5) +#define d6 REG (d6) +#define d7 REG (d7) +#define a0 REG (a0) +#define a1 REG (a1) +#define a2 REG (a2) +#define a3 REG (a3) +#define a4 REG (a4) +#define a5 REG (a5) +#define a6 REG (a6) +#define fp REG (fp) +#define sp REG (sp) + + .text + .proc + .globl SYM (__umodsi3) +SYM (__umodsi3): + movel sp@(8), d1 /* d1 = divisor */ + movel sp@(4), d0 /* d0 = dividend */ + movel d1, sp@- + movel d0, sp@- + jbsr SYM (__udivsi3) + addql IMM (8), sp + movel sp@(8), d1 /* d1 = divisor */ +#if !(defined(__mcf5200__) || defined(__mcoldfire__)) + movel d1, sp@- + movel d0, sp@- + jbsr SYM (__mulsi3) /* d0 = (a/b)*b */ + addql IMM (8), sp +#else + mulsl d1,d0 +#endif + movel sp@(4), d1 /* d1 = dividend */ + subl d0, d1 /* d1 = a - (a/b)*b */ + movel d1, d0 + rts + diff --git a/arch/m68k/mm/Makefile b/arch/m68k/mm/Makefile index 5eaa43c4cb3c..b60270e4954b 100644 --- a/arch/m68k/mm/Makefile +++ b/arch/m68k/mm/Makefile @@ -1,8 +1,5 @@ -# -# Makefile for the linux m68k-specific parts of the memory manager. -# - -obj-y := cache.o init.o fault.o hwtest.o - -obj-$(CONFIG_MMU_MOTOROLA) += kmap.o memory.o motorola.o -obj-$(CONFIG_MMU_SUN3) += sun3kmap.o sun3mmu.o +ifdef CONFIG_MMU +include arch/m68k/mm/Makefile_mm +else +include arch/m68k/mm/Makefile_no +endif diff --git a/arch/m68k/mm/Makefile_mm b/arch/m68k/mm/Makefile_mm new file mode 100644 index 000000000000..5eaa43c4cb3c --- /dev/null +++ b/arch/m68k/mm/Makefile_mm @@ -0,0 +1,8 @@ +# +# Makefile for the linux m68k-specific parts of the memory manager. +# + +obj-y := cache.o init.o fault.o hwtest.o + +obj-$(CONFIG_MMU_MOTOROLA) += kmap.o memory.o motorola.o +obj-$(CONFIG_MMU_SUN3) += sun3kmap.o sun3mmu.o diff --git a/arch/m68k/mm/Makefile_no b/arch/m68k/mm/Makefile_no new file mode 100644 index 000000000000..b54ab6b4b523 --- /dev/null +++ b/arch/m68k/mm/Makefile_no @@ -0,0 +1,5 @@ +# +# Makefile for the linux m68knommu specific parts of the memory manager. +# + +obj-y += init.o kmap.o diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 8bc842554e5b..27b5ce089a34 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -1,150 +1,5 @@ -/* - * linux/arch/m68k/mm/init.c - * - * Copyright (C) 1995 Hamish Macdonald - * - * Contains common initialization routines, specific init code moved - * to motorola.c and sun3mmu.c - */ - -#include <linux/module.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/gfp.h> - -#include <asm/setup.h> -#include <asm/uaccess.h> -#include <asm/page.h> -#include <asm/pgalloc.h> -#include <asm/system.h> -#include <asm/machdep.h> -#include <asm/io.h> -#ifdef CONFIG_ATARI -#include <asm/atari_stram.h> -#endif -#include <asm/sections.h> -#include <asm/tlb.h> - -DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); - -pg_data_t pg_data_map[MAX_NUMNODES]; -EXPORT_SYMBOL(pg_data_map); - -int m68k_virt_to_node_shift; - -#ifndef CONFIG_SINGLE_MEMORY_CHUNK -pg_data_t *pg_data_table[65]; -EXPORT_SYMBOL(pg_data_table); -#endif - -void __init m68k_setup_node(int node) -{ -#ifndef CONFIG_SINGLE_MEMORY_CHUNK - struct mem_info *info = m68k_memory + node; - int i, end; - - i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift(); - end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift(); - for (; i <= end; i++) { - if (pg_data_table[i]) - printk("overlap at %u for chunk %u\n", i, node); - pg_data_table[i] = pg_data_map + node; - } -#endif - pg_data_map[node].bdata = bootmem_node_data + node; - node_set_online(node); -} - - -/* - * ZERO_PAGE is a special page that is used for zero-initialized - * data and COW. - */ - -void *empty_zero_page; -EXPORT_SYMBOL(empty_zero_page); - -extern void init_pointer_table(unsigned long ptable); - -/* References to section boundaries */ - -extern pmd_t *zero_pgtable; - -void __init mem_init(void) -{ - pg_data_t *pgdat; - int codepages = 0; - int datapages = 0; - int initpages = 0; - int i; - -#ifdef CONFIG_ATARI - if (MACH_IS_ATARI) - atari_stram_mem_init_hook(); -#endif - - /* this will put all memory onto the freelists */ - totalram_pages = num_physpages = 0; - for_each_online_pgdat(pgdat) { - num_physpages += pgdat->node_present_pages; - - totalram_pages += free_all_bootmem_node(pgdat); - for (i = 0; i < pgdat->node_spanned_pages; i++) { - struct page *page = pgdat->node_mem_map + i; - char *addr = page_to_virt(page); - - if (!PageReserved(page)) - continue; - if (addr >= _text && - addr < _etext) - codepages++; - else if (addr >= __init_begin && - addr < __init_end) - initpages++; - else - datapages++; - } - } - -#ifndef CONFIG_SUN3 - /* insert pointer tables allocated so far into the tablelist */ - init_pointer_table((unsigned long)kernel_pg_dir); - for (i = 0; i < PTRS_PER_PGD; i++) { - if (pgd_present(kernel_pg_dir[i])) - init_pointer_table(__pgd_page(kernel_pg_dir[i])); - } - - /* insert also pointer table that we used to unmap the zero page */ - if (zero_pgtable) - init_pointer_table((unsigned long)zero_pgtable); -#endif - - printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n", - nr_free_pages() << (PAGE_SHIFT-10), - totalram_pages << (PAGE_SHIFT-10), - codepages << (PAGE_SHIFT-10), - datapages << (PAGE_SHIFT-10), - initpages << (PAGE_SHIFT-10)); -} - -#ifdef CONFIG_BLK_DEV_INITRD -void free_initrd_mem(unsigned long start, unsigned long end) -{ - int pages = 0; - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page(start); - totalram_pages++; - pages++; - } - printk ("Freeing initrd memory: %dk freed\n", pages); -} +#ifdef CONFIG_MMU +#include "init_mm.c" +#else +#include "init_no.c" #endif diff --git a/arch/m68k/mm/init_mm.c b/arch/m68k/mm/init_mm.c new file mode 100644 index 000000000000..8bc842554e5b --- /dev/null +++ b/arch/m68k/mm/init_mm.c @@ -0,0 +1,150 @@ +/* + * linux/arch/m68k/mm/init.c + * + * Copyright (C) 1995 Hamish Macdonald + * + * Contains common initialization routines, specific init code moved + * to motorola.c and sun3mmu.c + */ + +#include <linux/module.h> +#include <linux/signal.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/swap.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/bootmem.h> +#include <linux/gfp.h> + +#include <asm/setup.h> +#include <asm/uaccess.h> +#include <asm/page.h> +#include <asm/pgalloc.h> +#include <asm/system.h> +#include <asm/machdep.h> +#include <asm/io.h> +#ifdef CONFIG_ATARI +#include <asm/atari_stram.h> +#endif +#include <asm/sections.h> +#include <asm/tlb.h> + +DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); + +pg_data_t pg_data_map[MAX_NUMNODES]; +EXPORT_SYMBOL(pg_data_map); + +int m68k_virt_to_node_shift; + +#ifndef CONFIG_SINGLE_MEMORY_CHUNK +pg_data_t *pg_data_table[65]; +EXPORT_SYMBOL(pg_data_table); +#endif + +void __init m68k_setup_node(int node) +{ +#ifndef CONFIG_SINGLE_MEMORY_CHUNK + struct mem_info *info = m68k_memory + node; + int i, end; + + i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift(); + end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift(); + for (; i <= end; i++) { + if (pg_data_table[i]) + printk("overlap at %u for chunk %u\n", i, node); + pg_data_table[i] = pg_data_map + node; + } +#endif + pg_data_map[node].bdata = bootmem_node_data + node; + node_set_online(node); +} + + +/* + * ZERO_PAGE is a special page that is used for zero-initialized + * data and COW. + */ + +void *empty_zero_page; +EXPORT_SYMBOL(empty_zero_page); + +extern void init_pointer_table(unsigned long ptable); + +/* References to section boundaries */ + +extern pmd_t *zero_pgtable; + +void __init mem_init(void) +{ + pg_data_t *pgdat; + int codepages = 0; + int datapages = 0; + int initpages = 0; + int i; + +#ifdef CONFIG_ATARI + if (MACH_IS_ATARI) + atari_stram_mem_init_hook(); +#endif + + /* this will put all memory onto the freelists */ + totalram_pages = num_physpages = 0; + for_each_online_pgdat(pgdat) { + num_physpages += pgdat->node_present_pages; + + totalram_pages += free_all_bootmem_node(pgdat); + for (i = 0; i < pgdat->node_spanned_pages; i++) { + struct page *page = pgdat->node_mem_map + i; + char *addr = page_to_virt(page); + + if (!PageReserved(page)) + continue; + if (addr >= _text && + addr < _etext) + codepages++; + else if (addr >= __init_begin && + addr < __init_end) + initpages++; + else + datapages++; + } + } + +#ifndef CONFIG_SUN3 + /* insert pointer tables allocated so far into the tablelist */ + init_pointer_table((unsigned long)kernel_pg_dir); + for (i = 0; i < PTRS_PER_PGD; i++) { + if (pgd_present(kernel_pg_dir[i])) + init_pointer_table(__pgd_page(kernel_pg_dir[i])); + } + + /* insert also pointer table that we used to unmap the zero page */ + if (zero_pgtable) + init_pointer_table((unsigned long)zero_pgtable); +#endif + + printk("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n", + nr_free_pages() << (PAGE_SHIFT-10), + totalram_pages << (PAGE_SHIFT-10), + codepages << (PAGE_SHIFT-10), + datapages << (PAGE_SHIFT-10), + initpages << (PAGE_SHIFT-10)); +} + +#ifdef CONFIG_BLK_DEV_INITRD +void free_initrd_mem(unsigned long start, unsigned long end) +{ + int pages = 0; + for (; start < end; start += PAGE_SIZE) { + ClearPageReserved(virt_to_page(start)); + init_page_count(virt_to_page(start)); + free_page(start); + totalram_pages++; + pages++; + } + printk ("Freeing initrd memory: %dk freed\n", pages); +} +#endif diff --git a/arch/m68k/mm/init_no.c b/arch/m68k/mm/init_no.c new file mode 100644 index 000000000000..8a6653f56bd8 --- /dev/null +++ b/arch/m68k/mm/init_no.c @@ -0,0 +1,193 @@ +/* + * linux/arch/m68knommu/mm/init.c + * + * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * Copyright (C) 2000 Lineo, Inc. (www.lineo.com) + * + * Based on: + * + * linux/arch/m68k/mm/init.c + * + * Copyright (C) 1995 Hamish Macdonald + * + * JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com) + * DEC/2000 -- linux 2.4 support <davidm@snapgear.com> + */ + +#include <linux/signal.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/ptrace.h> +#include <linux/mman.h> +#include <linux/mm.h> +#include <linux/swap.h> +#include <linux/init.h> +#include <linux/highmem.h> +#include <linux/pagemap.h> +#include <linux/bootmem.h> +#include <linux/gfp.h> + +#include <asm/setup.h> +#include <asm/segment.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/system.h> +#include <asm/machdep.h> + +#undef DEBUG + +extern void die_if_kernel(char *,struct pt_regs *,long); +extern void free_initmem(void); + +/* + * BAD_PAGE is the page that is used for page faults when linux + * is out-of-memory. Older versions of linux just did a + * do_exit(), but using this instead means there is less risk + * for a process dying in kernel mode, possibly leaving a inode + * unused etc.. + * + * BAD_PAGETABLE is the accompanying page-table: it is initialized + * to point to BAD_PAGE entries. + * + * ZERO_PAGE is a special page that is used for zero-initialized + * data and COW. + */ +static unsigned long empty_bad_page_table; + +static unsigned long empty_bad_page; + +unsigned long empty_zero_page; + +extern unsigned long memory_start; +extern unsigned long memory_end; + +/* + * paging_init() continues the virtual memory environment setup which + * was begun by the code in arch/head.S. + * The parameters are pointers to where to stick the starting and ending + * addresses of available kernel virtual memory. + */ +void __init paging_init(void) +{ + /* + * Make sure start_mem is page aligned, otherwise bootmem and + * page_alloc get different views of the world. + */ +#ifdef DEBUG + unsigned long start_mem = PAGE_ALIGN(memory_start); +#endif + unsigned long end_mem = memory_end & PAGE_MASK; + +#ifdef DEBUG + printk (KERN_DEBUG "start_mem is %#lx\nvirtual_end is %#lx\n", + start_mem, end_mem); +#endif + + /* + * Initialize the bad page table and bad page to point + * to a couple of allocated pages. + */ + empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + memset((void *)empty_zero_page, 0, PAGE_SIZE); + + /* + * Set up SFC/DFC registers (user data space). + */ + set_fs (USER_DS); + +#ifdef DEBUG + printk (KERN_DEBUG "before free_area_init\n"); + + printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n", + start_mem, end_mem); +#endif + + { + unsigned long zones_size[MAX_NR_ZONES] = {0, }; + + zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT; + free_area_init(zones_size); + } +} + +void __init mem_init(void) +{ + int codek = 0, datak = 0, initk = 0; + unsigned long tmp; + extern char _etext, _stext, _sdata, _ebss, __init_begin, __init_end; + extern unsigned int _ramend, _rambase; + unsigned long len = _ramend - _rambase; + unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */ + unsigned long end_mem = memory_end; /* DAVIDM - this must not include kernel stack at top */ + + pr_debug("Mem_init: start=%lx, end=%lx\n", start_mem, end_mem); + + end_mem &= PAGE_MASK; + high_memory = (void *) end_mem; + + start_mem = PAGE_ALIGN(start_mem); + max_mapnr = num_physpages = (((unsigned long) high_memory) - PAGE_OFFSET) >> PAGE_SHIFT; + + /* this will put all memory onto the freelists */ + totalram_pages = free_all_bootmem(); + + codek = (&_etext - &_stext) >> 10; + datak = (&_ebss - &_sdata) >> 10; + initk = (&__init_begin - &__init_end) >> 10; + + tmp = nr_free_pages() << PAGE_SHIFT; + printk(KERN_INFO "Memory available: %luk/%luk RAM, (%dk kernel code, %dk data)\n", + tmp >> 10, + len >> 10, + codek, + datak + ); +} + + +#ifdef CONFIG_BLK_DEV_INITRD +void free_initrd_mem(unsigned long start, unsigned long end) +{ + int pages = 0; + for (; start < end; start += PAGE_SIZE) { + ClearPageReserved(virt_to_page(start)); + init_page_count(virt_to_page(start)); + free_page(start); + totalram_pages++; + pages++; + } + printk (KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages * (PAGE_SIZE / 1024)); +} +#endif + +void +free_initmem() +{ +#ifdef CONFIG_RAMKERNEL + unsigned long addr; + extern char __init_begin, __init_end; + /* + * The following code should be cool even if these sections + * are not page aligned. + */ + addr = PAGE_ALIGN((unsigned long)(&__init_begin)); + /* next to check that the page we free is not a partial page */ + for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) { + ClearPageReserved(virt_to_page(addr)); + init_page_count(virt_to_page(addr)); + free_page(addr); + totalram_pages++; + } + printk(KERN_NOTICE "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n", + (addr - PAGE_ALIGN((long) &__init_begin)) >> 10, + (int)(PAGE_ALIGN((unsigned long)(&__init_begin))), + (int)(addr - PAGE_SIZE)); +#endif +} + diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c index 69345849454b..a373d136b2b2 100644 --- a/arch/m68k/mm/kmap.c +++ b/arch/m68k/mm/kmap.c @@ -1,367 +1,5 @@ -/* - * linux/arch/m68k/mm/kmap.c - * - * Copyright (C) 1997 Roman Hodek - * - * 10/01/99 cleaned up the code and changing to the same interface - * used by other architectures /Roman Zippel - */ - -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/vmalloc.h> - -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/pgalloc.h> -#include <asm/io.h> -#include <asm/system.h> - -#undef DEBUG - -#define PTRTREESIZE (256*1024) - -/* - * For 040/060 we can use the virtual memory area like other architectures, - * but for 020/030 we want to use early termination page descriptor and we - * can't mix this with normal page descriptors, so we have to copy that code - * (mm/vmalloc.c) and return appriorate aligned addresses. - */ - -#ifdef CPU_M68040_OR_M68060_ONLY - -#define IO_SIZE PAGE_SIZE - -static inline struct vm_struct *get_io_area(unsigned long size) -{ - return get_vm_area(size, VM_IOREMAP); -} - - -static inline void free_io_area(void *addr) -{ - vfree((void *)(PAGE_MASK & (unsigned long)addr)); -} - +#ifdef CONFIG_MMU +#include "kmap_mm.c" #else - -#define IO_SIZE (256*1024) - -static struct vm_struct *iolist; - -static struct vm_struct *get_io_area(unsigned long size) -{ - unsigned long addr; - struct vm_struct **p, *tmp, *area; - - area = kmalloc(sizeof(*area), GFP_KERNEL); - if (!area) - return NULL; - addr = KMAP_START; - for (p = &iolist; (tmp = *p) ; p = &tmp->next) { - if (size + addr < (unsigned long)tmp->addr) - break; - if (addr > KMAP_END-size) { - kfree(area); - return NULL; - } - addr = tmp->size + (unsigned long)tmp->addr; - } - area->addr = (void *)addr; - area->size = size + IO_SIZE; - area->next = *p; - *p = area; - return area; -} - -static inline void free_io_area(void *addr) -{ - struct vm_struct **p, *tmp; - - if (!addr) - return; - addr = (void *)((unsigned long)addr & -IO_SIZE); - for (p = &iolist ; (tmp = *p) ; p = &tmp->next) { - if (tmp->addr == addr) { - *p = tmp->next; - __iounmap(tmp->addr, tmp->size); - kfree(tmp); - return; - } - } -} - +#include "kmap_no.c" #endif - -/* - * Map some physical address range into the kernel address space. - */ -/* Rewritten by Andreas Schwab to remove all races. */ - -void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) -{ - struct vm_struct *area; - unsigned long virtaddr, retaddr; - long offset; - pgd_t *pgd_dir; - pmd_t *pmd_dir; - pte_t *pte_dir; - - /* - * Don't allow mappings that wrap.. - */ - if (!size || physaddr > (unsigned long)(-size)) - return NULL; - -#ifdef CONFIG_AMIGA - if (MACH_IS_AMIGA) { - if ((physaddr >= 0x40000000) && (physaddr + size < 0x60000000) - && (cacheflag == IOMAP_NOCACHE_SER)) - return (void __iomem *)physaddr; - } -#endif - -#ifdef DEBUG - printk("ioremap: 0x%lx,0x%lx(%d) - ", physaddr, size, cacheflag); -#endif - /* - * Mappings have to be aligned - */ - offset = physaddr & (IO_SIZE - 1); - physaddr &= -IO_SIZE; - size = (size + offset + IO_SIZE - 1) & -IO_SIZE; - - /* - * Ok, go for it.. - */ - area = get_io_area(size); - if (!area) - return NULL; - - virtaddr = (unsigned long)area->addr; - retaddr = virtaddr + offset; -#ifdef DEBUG - printk("0x%lx,0x%lx,0x%lx", physaddr, virtaddr, retaddr); -#endif - - /* - * add cache and table flags to physical address - */ - if (CPU_IS_040_OR_060) { - physaddr |= (_PAGE_PRESENT | _PAGE_GLOBAL040 | - _PAGE_ACCESSED | _PAGE_DIRTY); - switch (cacheflag) { - case IOMAP_FULL_CACHING: - physaddr |= _PAGE_CACHE040; - break; - case IOMAP_NOCACHE_SER: - default: - physaddr |= _PAGE_NOCACHE_S; - break; - case IOMAP_NOCACHE_NONSER: - physaddr |= _PAGE_NOCACHE; - break; - case IOMAP_WRITETHROUGH: - physaddr |= _PAGE_CACHE040W; - break; - } - } else { - physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); - switch (cacheflag) { - case IOMAP_NOCACHE_SER: - case IOMAP_NOCACHE_NONSER: - default: - physaddr |= _PAGE_NOCACHE030; - break; - case IOMAP_FULL_CACHING: - case IOMAP_WRITETHROUGH: - break; - } - } - - while ((long)size > 0) { -#ifdef DEBUG - if (!(virtaddr & (PTRTREESIZE-1))) - printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr); -#endif - pgd_dir = pgd_offset_k(virtaddr); - pmd_dir = pmd_alloc(&init_mm, pgd_dir, virtaddr); - if (!pmd_dir) { - printk("ioremap: no mem for pmd_dir\n"); - return NULL; - } - - if (CPU_IS_020_OR_030) { - pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr; - physaddr += PTRTREESIZE; - virtaddr += PTRTREESIZE; - size -= PTRTREESIZE; - } else { - pte_dir = pte_alloc_kernel(pmd_dir, virtaddr); - if (!pte_dir) { - printk("ioremap: no mem for pte_dir\n"); - return NULL; - } - - pte_val(*pte_dir) = physaddr; - virtaddr += PAGE_SIZE; - physaddr += PAGE_SIZE; - size -= PAGE_SIZE; - } - } -#ifdef DEBUG - printk("\n"); -#endif - flush_tlb_all(); - - return (void __iomem *)retaddr; -} -EXPORT_SYMBOL(__ioremap); - -/* - * Unmap a ioremap()ed region again - */ -void iounmap(void __iomem *addr) -{ -#ifdef CONFIG_AMIGA - if ((!MACH_IS_AMIGA) || - (((unsigned long)addr < 0x40000000) || - ((unsigned long)addr > 0x60000000))) - free_io_area((__force void *)addr); -#else - free_io_area((__force void *)addr); -#endif -} -EXPORT_SYMBOL(iounmap); - -/* - * __iounmap unmaps nearly everything, so be careful - * it doesn't free currently pointer/page tables anymore but it - * wans't used anyway and might be added later. - */ -void __iounmap(void *addr, unsigned long size) -{ - unsigned long virtaddr = (unsigned long)addr; - pgd_t *pgd_dir; - pmd_t *pmd_dir; - pte_t *pte_dir; - - while ((long)size > 0) { - pgd_dir = pgd_offset_k(virtaddr); - if (pgd_bad(*pgd_dir)) { - printk("iounmap: bad pgd(%08lx)\n", pgd_val(*pgd_dir)); - pgd_clear(pgd_dir); - return; - } - pmd_dir = pmd_offset(pgd_dir, virtaddr); - - if (CPU_IS_020_OR_030) { - int pmd_off = (virtaddr/PTRTREESIZE) & 15; - int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK; - - if (pmd_type == _PAGE_PRESENT) { - pmd_dir->pmd[pmd_off] = 0; - virtaddr += PTRTREESIZE; - size -= PTRTREESIZE; - continue; - } else if (pmd_type == 0) - continue; - } - - if (pmd_bad(*pmd_dir)) { - printk("iounmap: bad pmd (%08lx)\n", pmd_val(*pmd_dir)); - pmd_clear(pmd_dir); - return; - } - pte_dir = pte_offset_kernel(pmd_dir, virtaddr); - - pte_val(*pte_dir) = 0; - virtaddr += PAGE_SIZE; - size -= PAGE_SIZE; - } - - flush_tlb_all(); -} - -/* - * Set new cache mode for some kernel address space. - * The caller must push data for that range itself, if such data may already - * be in the cache. - */ -void kernel_set_cachemode(void *addr, unsigned long size, int cmode) -{ - unsigned long virtaddr = (unsigned long)addr; - pgd_t *pgd_dir; - pmd_t *pmd_dir; - pte_t *pte_dir; - - if (CPU_IS_040_OR_060) { - switch (cmode) { - case IOMAP_FULL_CACHING: - cmode = _PAGE_CACHE040; - break; - case IOMAP_NOCACHE_SER: - default: - cmode = _PAGE_NOCACHE_S; - break; - case IOMAP_NOCACHE_NONSER: - cmode = _PAGE_NOCACHE; - break; - case IOMAP_WRITETHROUGH: - cmode = _PAGE_CACHE040W; - break; - } - } else { - switch (cmode) { - case IOMAP_NOCACHE_SER: - case IOMAP_NOCACHE_NONSER: - default: - cmode = _PAGE_NOCACHE030; - break; - case IOMAP_FULL_CACHING: - case IOMAP_WRITETHROUGH: - cmode = 0; - } - } - - while ((long)size > 0) { - pgd_dir = pgd_offset_k(virtaddr); - if (pgd_bad(*pgd_dir)) { - printk("iocachemode: bad pgd(%08lx)\n", pgd_val(*pgd_dir)); - pgd_clear(pgd_dir); - return; - } - pmd_dir = pmd_offset(pgd_dir, virtaddr); - - if (CPU_IS_020_OR_030) { - int pmd_off = (virtaddr/PTRTREESIZE) & 15; - - if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) { - pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] & - _CACHEMASK040) | cmode; - virtaddr += PTRTREESIZE; - size -= PTRTREESIZE; - continue; - } - } - - if (pmd_bad(*pmd_dir)) { - printk("iocachemode: bad pmd (%08lx)\n", pmd_val(*pmd_dir)); - pmd_clear(pmd_dir); - return; - } - pte_dir = pte_offset_kernel(pmd_dir, virtaddr); - - pte_val(*pte_dir) = (pte_val(*pte_dir) & _CACHEMASK040) | cmode; - virtaddr += PAGE_SIZE; - size -= PAGE_SIZE; - } - - flush_tlb_all(); -} -EXPORT_SYMBOL(kernel_set_cachemode); diff --git a/arch/m68k/mm/kmap_mm.c b/arch/m68k/mm/kmap_mm.c new file mode 100644 index 000000000000..69345849454b --- /dev/null +++ b/arch/m68k/mm/kmap_mm.c @@ -0,0 +1,367 @@ +/* + * linux/arch/m68k/mm/kmap.c + * + * Copyright (C) 1997 Roman Hodek + * + * 10/01/99 cleaned up the code and changing to the same interface + * used by other architectures /Roman Zippel + */ + +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/vmalloc.h> + +#include <asm/setup.h> +#include <asm/segment.h> +#include <asm/page.h> +#include <asm/pgalloc.h> +#include <asm/io.h> +#include <asm/system.h> + +#undef DEBUG + +#define PTRTREESIZE (256*1024) + +/* + * For 040/060 we can use the virtual memory area like other architectures, + * but for 020/030 we want to use early termination page descriptor and we + * can't mix this with normal page descriptors, so we have to copy that code + * (mm/vmalloc.c) and return appriorate aligned addresses. + */ + +#ifdef CPU_M68040_OR_M68060_ONLY + +#define IO_SIZE PAGE_SIZE + +static inline struct vm_struct *get_io_area(unsigned long size) +{ + return get_vm_area(size, VM_IOREMAP); +} + + +static inline void free_io_area(void *addr) +{ + vfree((void *)(PAGE_MASK & (unsigned long)addr)); +} + +#else + +#define IO_SIZE (256*1024) + +static struct vm_struct *iolist; + +static struct vm_struct *get_io_area(unsigned long size) +{ + unsigned long addr; + struct vm_struct **p, *tmp, *area; + + area = kmalloc(sizeof(*area), GFP_KERNEL); + if (!area) + return NULL; + addr = KMAP_START; + for (p = &iolist; (tmp = *p) ; p = &tmp->next) { + if (size + addr < (unsigned long)tmp->addr) + break; + if (addr > KMAP_END-size) { + kfree(area); + return NULL; + } + addr = tmp->size + (unsigned long)tmp->addr; + } + area->addr = (void *)addr; + area->size = size + IO_SIZE; + area->next = *p; + *p = area; + return area; +} + +static inline void free_io_area(void *addr) +{ + struct vm_struct **p, *tmp; + + if (!addr) + return; + addr = (void *)((unsigned long)addr & -IO_SIZE); + for (p = &iolist ; (tmp = *p) ; p = &tmp->next) { + if (tmp->addr == addr) { + *p = tmp->next; + __iounmap(tmp->addr, tmp->size); + kfree(tmp); + return; + } + } +} + +#endif + +/* + * Map some physical address range into the kernel address space. + */ +/* Rewritten by Andreas Schwab to remove all races. */ + +void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) +{ + struct vm_struct *area; + unsigned long virtaddr, retaddr; + long offset; + pgd_t *pgd_dir; + pmd_t *pmd_dir; + pte_t *pte_dir; + + /* + * Don't allow mappings that wrap.. + */ + if (!size || physaddr > (unsigned long)(-size)) + return NULL; + +#ifdef CONFIG_AMIGA + if (MACH_IS_AMIGA) { + if ((physaddr >= 0x40000000) && (physaddr + size < 0x60000000) + && (cacheflag == IOMAP_NOCACHE_SER)) + return (void __iomem *)physaddr; + } +#endif + +#ifdef DEBUG + printk("ioremap: 0x%lx,0x%lx(%d) - ", physaddr, size, cacheflag); +#endif + /* + * Mappings have to be aligned + */ + offset = physaddr & (IO_SIZE - 1); + physaddr &= -IO_SIZE; + size = (size + offset + IO_SIZE - 1) & -IO_SIZE; + + /* + * Ok, go for it.. + */ + area = get_io_area(size); + if (!area) + return NULL; + + virtaddr = (unsigned long)area->addr; + retaddr = virtaddr + offset; +#ifdef DEBUG + printk("0x%lx,0x%lx,0x%lx", physaddr, virtaddr, retaddr); +#endif + + /* + * add cache and table flags to physical address + */ + if (CPU_IS_040_OR_060) { + physaddr |= (_PAGE_PRESENT | _PAGE_GLOBAL040 | + _PAGE_ACCESSED | _PAGE_DIRTY); + switch (cacheflag) { + case IOMAP_FULL_CACHING: + physaddr |= _PAGE_CACHE040; + break; + case IOMAP_NOCACHE_SER: + default: + physaddr |= _PAGE_NOCACHE_S; + break; + case IOMAP_NOCACHE_NONSER: + physaddr |= _PAGE_NOCACHE; + break; + case IOMAP_WRITETHROUGH: + physaddr |= _PAGE_CACHE040W; + break; + } + } else { + physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); + switch (cacheflag) { + case IOMAP_NOCACHE_SER: + case IOMAP_NOCACHE_NONSER: + default: + physaddr |= _PAGE_NOCACHE030; + break; + case IOMAP_FULL_CACHING: + case IOMAP_WRITETHROUGH: + break; + } + } + + while ((long)size > 0) { +#ifdef DEBUG + if (!(virtaddr & (PTRTREESIZE-1))) + printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr); +#endif + pgd_dir = pgd_offset_k(virtaddr); + pmd_dir = pmd_alloc(&init_mm, pgd_dir, virtaddr); + if (!pmd_dir) { + printk("ioremap: no mem for pmd_dir\n"); + return NULL; + } + + if (CPU_IS_020_OR_030) { + pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr; + physaddr += PTRTREESIZE; + virtaddr += PTRTREESIZE; + size -= PTRTREESIZE; + } else { + pte_dir = pte_alloc_kernel(pmd_dir, virtaddr); + if (!pte_dir) { + printk("ioremap: no mem for pte_dir\n"); + return NULL; + } + + pte_val(*pte_dir) = physaddr; + virtaddr += PAGE_SIZE; + physaddr += PAGE_SIZE; + size -= PAGE_SIZE; + } + } +#ifdef DEBUG + printk("\n"); +#endif + flush_tlb_all(); + + return (void __iomem *)retaddr; +} +EXPORT_SYMBOL(__ioremap); + +/* + * Unmap a ioremap()ed region again + */ +void iounmap(void __iomem *addr) +{ +#ifdef CONFIG_AMIGA + if ((!MACH_IS_AMIGA) || + (((unsigned long)addr < 0x40000000) || + ((unsigned long)addr > 0x60000000))) + free_io_area((__force void *)addr); +#else + free_io_area((__force void *)addr); +#endif +} +EXPORT_SYMBOL(iounmap); + +/* + * __iounmap unmaps nearly everything, so be careful + * it doesn't free currently pointer/page tables anymore but it + * wans't used anyway and might be added later. + */ +void __iounmap(void *addr, unsigned long size) +{ + unsigned long virtaddr = (unsigned long)addr; + pgd_t *pgd_dir; + pmd_t *pmd_dir; + pte_t *pte_dir; + + while ((long)size > 0) { + pgd_dir = pgd_offset_k(virtaddr); + if (pgd_bad(*pgd_dir)) { + printk("iounmap: bad pgd(%08lx)\n", pgd_val(*pgd_dir)); + pgd_clear(pgd_dir); + return; + } + pmd_dir = pmd_offset(pgd_dir, virtaddr); + + if (CPU_IS_020_OR_030) { + int pmd_off = (virtaddr/PTRTREESIZE) & 15; + int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK; + + if (pmd_type == _PAGE_PRESENT) { + pmd_dir->pmd[pmd_off] = 0; + virtaddr += PTRTREESIZE; + size -= PTRTREESIZE; + continue; + } else if (pmd_type == 0) + continue; + } + + if (pmd_bad(*pmd_dir)) { + printk("iounmap: bad pmd (%08lx)\n", pmd_val(*pmd_dir)); + pmd_clear(pmd_dir); + return; + } + pte_dir = pte_offset_kernel(pmd_dir, virtaddr); + + pte_val(*pte_dir) = 0; + virtaddr += PAGE_SIZE; + size -= PAGE_SIZE; + } + + flush_tlb_all(); +} + +/* + * Set new cache mode for some kernel address space. + * The caller must push data for that range itself, if such data may already + * be in the cache. + */ +void kernel_set_cachemode(void *addr, unsigned long size, int cmode) +{ + unsigned long virtaddr = (unsigned long)addr; + pgd_t *pgd_dir; + pmd_t *pmd_dir; + pte_t *pte_dir; + + if (CPU_IS_040_OR_060) { + switch (cmode) { + case IOMAP_FULL_CACHING: + cmode = _PAGE_CACHE040; + break; + case IOMAP_NOCACHE_SER: + default: + cmode = _PAGE_NOCACHE_S; + break; + case IOMAP_NOCACHE_NONSER: + cmode = _PAGE_NOCACHE; + break; + case IOMAP_WRITETHROUGH: + cmode = _PAGE_CACHE040W; + break; + } + } else { + switch (cmode) { + case IOMAP_NOCACHE_SER: + case IOMAP_NOCACHE_NONSER: + default: + cmode = _PAGE_NOCACHE030; + break; + case IOMAP_FULL_CACHING: + case IOMAP_WRITETHROUGH: + cmode = 0; + } + } + + while ((long)size > 0) { + pgd_dir = pgd_offset_k(virtaddr); + if (pgd_bad(*pgd_dir)) { + printk("iocachemode: bad pgd(%08lx)\n", pgd_val(*pgd_dir)); + pgd_clear(pgd_dir); + return; + } + pmd_dir = pmd_offset(pgd_dir, virtaddr); + + if (CPU_IS_020_OR_030) { + int pmd_off = (virtaddr/PTRTREESIZE) & 15; + + if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) { + pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] & + _CACHEMASK040) | cmode; + virtaddr += PTRTREESIZE; + size -= PTRTREESIZE; + continue; + } + } + + if (pmd_bad(*pmd_dir)) { + printk("iocachemode: bad pmd (%08lx)\n", pmd_val(*pmd_dir)); + pmd_clear(pmd_dir); + return; + } + pte_dir = pte_offset_kernel(pmd_dir, virtaddr); + + pte_val(*pte_dir) = (pte_val(*pte_dir) & _CACHEMASK040) | cmode; + virtaddr += PAGE_SIZE; + size -= PAGE_SIZE; + } + + flush_tlb_all(); +} +EXPORT_SYMBOL(kernel_set_cachemode); diff --git a/arch/m68k/mm/kmap_no.c b/arch/m68k/mm/kmap_no.c new file mode 100644 index 000000000000..ece8d5ad4e6c --- /dev/null +++ b/arch/m68k/mm/kmap_no.c @@ -0,0 +1,45 @@ +/* + * linux/arch/m68knommu/mm/kmap.c + * + * Copyright (C) 2000 Lineo, <davidm@snapgear.com> + * Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com> + */ + +#include <linux/mm.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/vmalloc.h> + +#include <asm/setup.h> +#include <asm/segment.h> +#include <asm/page.h> +#include <asm/pgalloc.h> +#include <asm/io.h> +#include <asm/system.h> + +#undef DEBUG + +/* + * Map some physical address range into the kernel address space. + */ +void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) +{ + return (void *)physaddr; +} + +/* + * Unmap a ioremap()ed region again. + */ +void iounmap(void *addr) +{ +} + +/* + * Set new cache mode for some kernel address space. + * The caller must push data for that range itself, if such data may already + * be in the cache. + */ +void kernel_set_cachemode(void *addr, unsigned long size, int cmode) +{ +} diff --git a/arch/m68k/platform/5206/Makefile b/arch/m68k/platform/5206/Makefile new file mode 100644 index 000000000000..b5db05625cfa --- /dev/null +++ b/arch/m68k/platform/5206/Makefile @@ -0,0 +1,18 @@ +# +# Makefile for the m68knommu linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o + diff --git a/arch/m68k/platform/5206/config.c b/arch/m68k/platform/5206/config.c new file mode 100644 index 000000000000..9c335465e66d --- /dev/null +++ b/arch/m68k/platform/5206/config.c @@ -0,0 +1,121 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/5206/config.c + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2000-2001, Lineo Inc. (www.lineo.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m5206_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, +}; + +static struct platform_device m5206_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5206_uart_platform, +}; + +static struct platform_device *m5206_devices[] __initdata = { + &m5206_uart, +}; + +/***************************************************************************/ + +static void __init m5206_uart_init_line(int line, int irq) +{ + if (line == 0) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCFUART_BASE1 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART0); + } else if (line == 1) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART1); + } +} + +static void __init m5206_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5206_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5206_uart_init_line(line, m5206_uart_platform[line].irq); +} + +/***************************************************************************/ + +static void __init m5206_timers_init(void) +{ + /* Timer1 is always used as system timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER1ICR); + mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); + +#ifdef CONFIG_HIGHPROFILE + /* Timer2 is to be used as a high speed profile timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER2ICR); + mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); +#endif +} + +/***************************************************************************/ + +void m5206_cpu_reset(void) +{ + local_irq_disable(); + /* Set watchdog to soft reset, and enabled */ + __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); + for (;;) + /* wait for watchdog to timeout */; +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_reset = m5206_cpu_reset; + m5206_timers_init(); + m5206_uarts_init(); + + /* Only support the external interrupts on their primary level */ + mcf_mapirq2imr(25, MCFINTC_EINT1); + mcf_mapirq2imr(28, MCFINTC_EINT4); + mcf_mapirq2imr(31, MCFINTC_EINT7); +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + platform_add_devices(m5206_devices, ARRAY_SIZE(m5206_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/5206/gpio.c b/arch/m68k/platform/5206/gpio.c new file mode 100644 index 000000000000..b9ab4a120f28 --- /dev/null +++ b/arch/m68k/platform/5206/gpio.c @@ -0,0 +1,49 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "PP", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFSIM_PADDR, + .podr = (void __iomem *) MCFSIM_PADAT, + .ppdr = (void __iomem *) MCFSIM_PADAT, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/5206e/Makefile b/arch/m68k/platform/5206e/Makefile new file mode 100644 index 000000000000..b5db05625cfa --- /dev/null +++ b/arch/m68k/platform/5206e/Makefile @@ -0,0 +1,18 @@ +# +# Makefile for the m68knommu linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o + diff --git a/arch/m68k/platform/5206e/config.c b/arch/m68k/platform/5206e/config.c new file mode 100644 index 000000000000..942397984c66 --- /dev/null +++ b/arch/m68k/platform/5206e/config.c @@ -0,0 +1,127 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/5206e/config.c + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfdma.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m5206e_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, +}; + +static struct platform_device m5206e_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5206e_uart_platform, +}; + +static struct platform_device *m5206e_devices[] __initdata = { + &m5206e_uart, +}; + +/***************************************************************************/ + +static void __init m5206e_uart_init_line(int line, int irq) +{ + if (line == 0) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCFUART_BASE1 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART0); + } else if (line == 1) { + writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART1); + } +} + +static void __init m5206e_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5206e_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5206e_uart_init_line(line, m5206e_uart_platform[line].irq); +} + +/***************************************************************************/ + +static void __init m5206e_timers_init(void) +{ + /* Timer1 is always used as system timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER1ICR); + mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); + +#ifdef CONFIG_HIGHPROFILE + /* Timer2 is to be used as a high speed profile timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER2ICR); + mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); +#endif +} + +/***************************************************************************/ + +void m5206e_cpu_reset(void) +{ + local_irq_disable(); + /* Set watchdog to soft reset, and enabled */ + __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); + for (;;) + /* wait for watchdog to timeout */; +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ +#if defined(CONFIG_NETtel) + /* Copy command line from FLASH to local buffer... */ + memcpy(commandp, (char *) 0xf0004000, size); + commandp[size-1] = 0; +#endif /* CONFIG_NETtel */ + + mach_reset = m5206e_cpu_reset; + m5206e_timers_init(); + m5206e_uarts_init(); + + /* Only support the external interrupts on their primary level */ + mcf_mapirq2imr(25, MCFINTC_EINT1); + mcf_mapirq2imr(28, MCFINTC_EINT4); + mcf_mapirq2imr(31, MCFINTC_EINT7); +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + platform_add_devices(m5206e_devices, ARRAY_SIZE(m5206e_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/5206e/gpio.c b/arch/m68k/platform/5206e/gpio.c new file mode 100644 index 000000000000..b9ab4a120f28 --- /dev/null +++ b/arch/m68k/platform/5206e/gpio.c @@ -0,0 +1,49 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "PP", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFSIM_PADDR, + .podr = (void __iomem *) MCFSIM_PADAT, + .ppdr = (void __iomem *) MCFSIM_PADAT, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/520x/Makefile b/arch/m68k/platform/520x/Makefile new file mode 100644 index 000000000000..ad3f4e5a57ce --- /dev/null +++ b/arch/m68k/platform/520x/Makefile @@ -0,0 +1,17 @@ +# +# Makefile for the M5208 specific file. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o diff --git a/arch/m68k/platform/520x/config.c b/arch/m68k/platform/520x/config.c new file mode 100644 index 000000000000..621238f1a219 --- /dev/null +++ b/arch/m68k/platform/520x/config.c @@ -0,0 +1,311 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/520x/config.c + * + * Copyright (C) 2005, Freescale (www.freescale.com) + * Copyright (C) 2005, Intec Automation (mike@steroidmicros.com) + * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/spi/spi.h> +#include <linux/gpio.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfqspi.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m520x_uart_platform[] = { + { + .mapbase = MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART1, + }, + { + .mapbase = MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART2, + }, + { }, +}; + +static struct platform_device m520x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m520x_uart_platform, +}; + +static struct resource m520x_fec_resources[] = { + { + .start = MCFFEC_BASE, + .end = MCFFEC_BASE + MCFFEC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = 64 + 36, + .end = 64 + 36, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 40, + .end = 64 + 40, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 42, + .end = 64 + 42, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m520x_fec = { + .name = "fec", + .id = 0, + .num_resources = ARRAY_SIZE(m520x_fec_resources), + .resource = m520x_fec_resources, +}; + +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) +static struct resource m520x_qspi_resources[] = { + { + .start = MCFQSPI_IOBASE, + .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = MCFINT_VECBASE + MCFINT_QSPI, + .end = MCFINT_VECBASE + MCFINT_QSPI, + .flags = IORESOURCE_IRQ, + }, +}; + +#define MCFQSPI_CS0 62 +#define MCFQSPI_CS1 63 +#define MCFQSPI_CS2 44 + +static int m520x_cs_setup(struct mcfqspi_cs_control *cs_control) +{ + int status; + + status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); + goto fail0; + } + status = gpio_direction_output(MCFQSPI_CS0, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); + goto fail1; + } + + status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); + goto fail1; + } + status = gpio_direction_output(MCFQSPI_CS1, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); + goto fail2; + } + + status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); + goto fail2; + } + status = gpio_direction_output(MCFQSPI_CS2, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); + goto fail3; + } + + return 0; + +fail3: + gpio_free(MCFQSPI_CS2); +fail2: + gpio_free(MCFQSPI_CS1); +fail1: + gpio_free(MCFQSPI_CS0); +fail0: + return status; +} + +static void m520x_cs_teardown(struct mcfqspi_cs_control *cs_control) +{ + gpio_free(MCFQSPI_CS2); + gpio_free(MCFQSPI_CS1); + gpio_free(MCFQSPI_CS0); +} + +static void m520x_cs_select(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + switch (chip_select) { + case 0: + gpio_set_value(MCFQSPI_CS0, cs_high); + break; + case 1: + gpio_set_value(MCFQSPI_CS1, cs_high); + break; + case 2: + gpio_set_value(MCFQSPI_CS2, cs_high); + break; + } +} + +static void m520x_cs_deselect(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + switch (chip_select) { + case 0: + gpio_set_value(MCFQSPI_CS0, !cs_high); + break; + case 1: + gpio_set_value(MCFQSPI_CS1, !cs_high); + break; + case 2: + gpio_set_value(MCFQSPI_CS2, !cs_high); + break; + } +} + +static struct mcfqspi_cs_control m520x_cs_control = { + .setup = m520x_cs_setup, + .teardown = m520x_cs_teardown, + .select = m520x_cs_select, + .deselect = m520x_cs_deselect, +}; + +static struct mcfqspi_platform_data m520x_qspi_data = { + .bus_num = 0, + .num_chipselect = 3, + .cs_control = &m520x_cs_control, +}; + +static struct platform_device m520x_qspi = { + .name = "mcfqspi", + .id = 0, + .num_resources = ARRAY_SIZE(m520x_qspi_resources), + .resource = m520x_qspi_resources, + .dev.platform_data = &m520x_qspi_data, +}; + +static void __init m520x_qspi_init(void) +{ + u16 par; + /* setup Port QS for QSPI with gpio CS control */ + writeb(0x3f, MCF_GPIO_PAR_QSPI); + /* make U1CTS and U2RTS gpio for cs_control */ + par = readw(MCF_GPIO_PAR_UART); + par &= 0x00ff; + writew(par, MCF_GPIO_PAR_UART); +} +#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ + + +static struct platform_device *m520x_devices[] __initdata = { + &m520x_uart, + &m520x_fec, +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + &m520x_qspi, +#endif +}; + +/***************************************************************************/ + +static void __init m520x_uart_init_line(int line, int irq) +{ + u16 par; + u8 par2; + + switch (line) { + case 0: + par = readw(MCF_GPIO_PAR_UART); + par |= MCF_GPIO_PAR_UART_PAR_UTXD0 | + MCF_GPIO_PAR_UART_PAR_URXD0; + writew(par, MCF_GPIO_PAR_UART); + break; + case 1: + par = readw(MCF_GPIO_PAR_UART); + par |= MCF_GPIO_PAR_UART_PAR_UTXD1 | + MCF_GPIO_PAR_UART_PAR_URXD1; + writew(par, MCF_GPIO_PAR_UART); + break; + case 2: + par2 = readb(MCF_GPIO_PAR_FECI2C); + par2 &= ~0x0F; + par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 | + MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2; + writeb(par2, MCF_GPIO_PAR_FECI2C); + break; + } +} + +static void __init m520x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m520x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m520x_uart_init_line(line, m520x_uart_platform[line].irq); +} + +/***************************************************************************/ + +static void __init m520x_fec_init(void) +{ + u8 v; + + /* Set multi-function pins to ethernet mode */ + v = readb(MCF_GPIO_PAR_FEC); + writeb(v | 0xf0, MCF_GPIO_PAR_FEC); + + v = readb(MCF_GPIO_PAR_FECI2C); + writeb(v | 0x0f, MCF_GPIO_PAR_FECI2C); +} + +/***************************************************************************/ + +static void m520x_cpu_reset(void) +{ + local_irq_disable(); + __raw_writeb(MCF_RCR_SWRESET, MCF_RCR); +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_reset = m520x_cpu_reset; + m520x_uarts_init(); + m520x_fec_init(); +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + m520x_qspi_init(); +#endif +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + platform_add_devices(m520x_devices, ARRAY_SIZE(m520x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/520x/gpio.c b/arch/m68k/platform/520x/gpio.c new file mode 100644 index 000000000000..d757328563d1 --- /dev/null +++ b/arch/m68k/platform/520x/gpio.c @@ -0,0 +1,211 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "PIRQ", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFEPORT_EPDDR, + .podr = (void __iomem *) MCFEPORT_EPDR, + .ppdr = (void __iomem *) MCFEPORT_EPPDR, + }, + { + .gpio_chip = { + .label = "BUSCTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 8, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, + .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, + }, + { + .gpio_chip = { + .label = "BE", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 16, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BE, + .podr = (void __iomem *) MCFGPIO_PODR_BE, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BE, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BE, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BE, + }, + { + .gpio_chip = { + .label = "CS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 25, + .ngpio = 3, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_CS, + .podr = (void __iomem *) MCFGPIO_PODR_CS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, + }, + { + .gpio_chip = { + .label = "FECI2C", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 32, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, + .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, + }, + { + .gpio_chip = { + .label = "QSPI", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 40, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, + .podr = (void __iomem *) MCFGPIO_PODR_QSPI, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, + }, + { + .gpio_chip = { + .label = "TIMER", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 48, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER, + .podr = (void __iomem *) MCFGPIO_PODR_TIMER, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER, + }, + { + .gpio_chip = { + .label = "UART", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 56, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UART, + .podr = (void __iomem *) MCFGPIO_PODR_UART, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UART, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UART, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UART, + }, + { + .gpio_chip = { + .label = "FECH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 64, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECH, + .podr = (void __iomem *) MCFGPIO_PODR_FECH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECH, + }, + { + .gpio_chip = { + .label = "FECL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 72, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECL, + .podr = (void __iomem *) MCFGPIO_PODR_FECL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECL, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/523x/Makefile b/arch/m68k/platform/523x/Makefile new file mode 100644 index 000000000000..c04b8f71c88c --- /dev/null +++ b/arch/m68k/platform/523x/Makefile @@ -0,0 +1,17 @@ +# +# Makefile for the m68knommu linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o diff --git a/arch/m68k/platform/523x/config.c b/arch/m68k/platform/523x/config.c new file mode 100644 index 000000000000..418a76feb1e3 --- /dev/null +++ b/arch/m68k/platform/523x/config.c @@ -0,0 +1,293 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/523x/config.c + * + * Sub-architcture dependant initialization code for the Freescale + * 523x CPUs. + * + * Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/spi/spi.h> +#include <linux/gpio.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfqspi.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m523x_uart_platform[] = { + { + .mapbase = MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART0 + 1, + }, + { + .mapbase = MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART0 + 2, + }, + { }, +}; + +static struct platform_device m523x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m523x_uart_platform, +}; + +static struct resource m523x_fec_resources[] = { + { + .start = MCFFEC_BASE, + .end = MCFFEC_BASE + MCFFEC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = 64 + 23, + .end = 64 + 23, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 27, + .end = 64 + 27, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 29, + .end = 64 + 29, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m523x_fec = { + .name = "fec", + .id = 0, + .num_resources = ARRAY_SIZE(m523x_fec_resources), + .resource = m523x_fec_resources, +}; + +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) +static struct resource m523x_qspi_resources[] = { + { + .start = MCFQSPI_IOBASE, + .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = MCFINT_VECBASE + MCFINT_QSPI, + .end = MCFINT_VECBASE + MCFINT_QSPI, + .flags = IORESOURCE_IRQ, + }, +}; + +#define MCFQSPI_CS0 91 +#define MCFQSPI_CS1 92 +#define MCFQSPI_CS2 103 +#define MCFQSPI_CS3 99 + +static int m523x_cs_setup(struct mcfqspi_cs_control *cs_control) +{ + int status; + + status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); + goto fail0; + } + status = gpio_direction_output(MCFQSPI_CS0, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); + goto fail1; + } + + status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); + goto fail1; + } + status = gpio_direction_output(MCFQSPI_CS1, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); + goto fail2; + } + + status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); + goto fail2; + } + status = gpio_direction_output(MCFQSPI_CS2, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); + goto fail3; + } + + status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS3 failed\n"); + goto fail3; + } + status = gpio_direction_output(MCFQSPI_CS3, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n"); + goto fail4; + } + + return 0; + +fail4: + gpio_free(MCFQSPI_CS3); +fail3: + gpio_free(MCFQSPI_CS2); +fail2: + gpio_free(MCFQSPI_CS1); +fail1: + gpio_free(MCFQSPI_CS0); +fail0: + return status; +} + +static void m523x_cs_teardown(struct mcfqspi_cs_control *cs_control) +{ + gpio_free(MCFQSPI_CS3); + gpio_free(MCFQSPI_CS2); + gpio_free(MCFQSPI_CS1); + gpio_free(MCFQSPI_CS0); +} + +static void m523x_cs_select(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + switch (chip_select) { + case 0: + gpio_set_value(MCFQSPI_CS0, cs_high); + break; + case 1: + gpio_set_value(MCFQSPI_CS1, cs_high); + break; + case 2: + gpio_set_value(MCFQSPI_CS2, cs_high); + break; + case 3: + gpio_set_value(MCFQSPI_CS3, cs_high); + break; + } +} + +static void m523x_cs_deselect(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + switch (chip_select) { + case 0: + gpio_set_value(MCFQSPI_CS0, !cs_high); + break; + case 1: + gpio_set_value(MCFQSPI_CS1, !cs_high); + break; + case 2: + gpio_set_value(MCFQSPI_CS2, !cs_high); + break; + case 3: + gpio_set_value(MCFQSPI_CS3, !cs_high); + break; + } +} + +static struct mcfqspi_cs_control m523x_cs_control = { + .setup = m523x_cs_setup, + .teardown = m523x_cs_teardown, + .select = m523x_cs_select, + .deselect = m523x_cs_deselect, +}; + +static struct mcfqspi_platform_data m523x_qspi_data = { + .bus_num = 0, + .num_chipselect = 4, + .cs_control = &m523x_cs_control, +}; + +static struct platform_device m523x_qspi = { + .name = "mcfqspi", + .id = 0, + .num_resources = ARRAY_SIZE(m523x_qspi_resources), + .resource = m523x_qspi_resources, + .dev.platform_data = &m523x_qspi_data, +}; + +static void __init m523x_qspi_init(void) +{ + u16 par; + + /* setup QSPS pins for QSPI with gpio CS control */ + writeb(0x1f, MCFGPIO_PAR_QSPI); + /* and CS2 & CS3 as gpio */ + par = readw(MCFGPIO_PAR_TIMER); + par &= 0x3f3f; + writew(par, MCFGPIO_PAR_TIMER); +} +#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ + +static struct platform_device *m523x_devices[] __initdata = { + &m523x_uart, + &m523x_fec, +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + &m523x_qspi, +#endif +}; + +/***************************************************************************/ + +static void __init m523x_fec_init(void) +{ + u16 par; + u8 v; + + /* Set multi-function pins to ethernet use */ + par = readw(MCF_IPSBAR + 0x100082); + writew(par | 0xf00, MCF_IPSBAR + 0x100082); + v = readb(MCF_IPSBAR + 0x100078); + writeb(v | 0xc0, MCF_IPSBAR + 0x100078); +} + +/***************************************************************************/ + +static void m523x_cpu_reset(void) +{ + local_irq_disable(); + __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR); +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_reset = m523x_cpu_reset; +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + m523x_fec_init(); +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + m523x_qspi_init(); +#endif + platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/523x/gpio.c b/arch/m68k/platform/523x/gpio.c new file mode 100644 index 000000000000..327ebf142c8e --- /dev/null +++ b/arch/m68k/platform/523x/gpio.c @@ -0,0 +1,284 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "PIRQ", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .base = 1, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFEPORT_EPDDR, + .podr = (void __iomem *) MCFEPORT_EPDR, + .ppdr = (void __iomem *) MCFEPORT_EPPDR, + }, + { + .gpio_chip = { + .label = "ADDR", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 13, + .ngpio = 3, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_ADDR, + .podr = (void __iomem *) MCFGPIO_PODR_ADDR, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, + .setr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, + .clrr = (void __iomem *) MCFGPIO_PCLRR_ADDR, + }, + { + .gpio_chip = { + .label = "DATAH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 16, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_DATAH, + .podr = (void __iomem *) MCFGPIO_PODR_DATAH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAH, + }, + { + .gpio_chip = { + .label = "DATAL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 24, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_DATAL, + .podr = (void __iomem *) MCFGPIO_PODR_DATAL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAL, + }, + { + .gpio_chip = { + .label = "BUSCTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 32, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, + .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, + }, + { + .gpio_chip = { + .label = "BS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 40, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BS, + .podr = (void __iomem *) MCFGPIO_PODR_BS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BS, + }, + { + .gpio_chip = { + .label = "CS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 49, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_CS, + .podr = (void __iomem *) MCFGPIO_PODR_CS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, + }, + { + .gpio_chip = { + .label = "SDRAM", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 56, + .ngpio = 6, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_SDRAM, + .podr = (void __iomem *) MCFGPIO_PODR_SDRAM, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, + .setr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, + .clrr = (void __iomem *) MCFGPIO_PCLRR_SDRAM, + }, + { + .gpio_chip = { + .label = "FECI2C", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 64, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, + .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, + }, + { + .gpio_chip = { + .label = "UARTH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 72, + .ngpio = 2, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UARTH, + .podr = (void __iomem *) MCFGPIO_PODR_UARTH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTH, + }, + { + .gpio_chip = { + .label = "UARTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 80, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UARTL, + .podr = (void __iomem *) MCFGPIO_PODR_UARTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTL, + }, + { + .gpio_chip = { + .label = "QSPI", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 88, + .ngpio = 5, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, + .podr = (void __iomem *) MCFGPIO_PODR_QSPI, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, + }, + { + .gpio_chip = { + .label = "TIMER", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 96, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER, + .podr = (void __iomem *) MCFGPIO_PODR_TIMER, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER, + }, + { + .gpio_chip = { + .label = "ETPU", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 104, + .ngpio = 3, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_ETPU, + .podr = (void __iomem *) MCFGPIO_PODR_ETPU, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ETPU, + .setr = (void __iomem *) MCFGPIO_PPDSDR_ETPU, + .clrr = (void __iomem *) MCFGPIO_PCLRR_ETPU, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/5249/Makefile b/arch/m68k/platform/5249/Makefile new file mode 100644 index 000000000000..4bed30fd0073 --- /dev/null +++ b/arch/m68k/platform/5249/Makefile @@ -0,0 +1,18 @@ +# +# Makefile for the m68knommu linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o intc2.o + diff --git a/arch/m68k/platform/5249/config.c b/arch/m68k/platform/5249/config.c new file mode 100644 index 000000000000..ceb31e5744a6 --- /dev/null +++ b/arch/m68k/platform/5249/config.c @@ -0,0 +1,330 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/5249/config.c + * + * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/spi/spi.h> +#include <linux/gpio.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfqspi.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m5249_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, +}; + +static struct platform_device m5249_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5249_uart_platform, +}; + +#ifdef CONFIG_M5249C3 + +static struct resource m5249_smc91x_resources[] = { + { + .start = 0xe0000300, + .end = 0xe0000300 + 0x100, + .flags = IORESOURCE_MEM, + }, + { + .start = MCFINTC2_GPIOIRQ6, + .end = MCFINTC2_GPIOIRQ6, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m5249_smc91x = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(m5249_smc91x_resources), + .resource = m5249_smc91x_resources, +}; + +#endif /* CONFIG_M5249C3 */ + +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) +static struct resource m5249_qspi_resources[] = { + { + .start = MCFQSPI_IOBASE, + .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = MCF_IRQ_QSPI, + .end = MCF_IRQ_QSPI, + .flags = IORESOURCE_IRQ, + }, +}; + +#define MCFQSPI_CS0 29 +#define MCFQSPI_CS1 24 +#define MCFQSPI_CS2 21 +#define MCFQSPI_CS3 22 + +static int m5249_cs_setup(struct mcfqspi_cs_control *cs_control) +{ + int status; + + status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); + goto fail0; + } + status = gpio_direction_output(MCFQSPI_CS0, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); + goto fail1; + } + + status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); + goto fail1; + } + status = gpio_direction_output(MCFQSPI_CS1, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); + goto fail2; + } + + status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); + goto fail2; + } + status = gpio_direction_output(MCFQSPI_CS2, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); + goto fail3; + } + + status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS3 failed\n"); + goto fail3; + } + status = gpio_direction_output(MCFQSPI_CS3, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n"); + goto fail4; + } + + return 0; + +fail4: + gpio_free(MCFQSPI_CS3); +fail3: + gpio_free(MCFQSPI_CS2); +fail2: + gpio_free(MCFQSPI_CS1); +fail1: + gpio_free(MCFQSPI_CS0); +fail0: + return status; +} + +static void m5249_cs_teardown(struct mcfqspi_cs_control *cs_control) +{ + gpio_free(MCFQSPI_CS3); + gpio_free(MCFQSPI_CS2); + gpio_free(MCFQSPI_CS1); + gpio_free(MCFQSPI_CS0); +} + +static void m5249_cs_select(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + switch (chip_select) { + case 0: + gpio_set_value(MCFQSPI_CS0, cs_high); + break; + case 1: + gpio_set_value(MCFQSPI_CS1, cs_high); + break; + case 2: + gpio_set_value(MCFQSPI_CS2, cs_high); + break; + case 3: + gpio_set_value(MCFQSPI_CS3, cs_high); + break; + } +} + +static void m5249_cs_deselect(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + switch (chip_select) { + case 0: + gpio_set_value(MCFQSPI_CS0, !cs_high); + break; + case 1: + gpio_set_value(MCFQSPI_CS1, !cs_high); + break; + case 2: + gpio_set_value(MCFQSPI_CS2, !cs_high); + break; + case 3: + gpio_set_value(MCFQSPI_CS3, !cs_high); + break; + } +} + +static struct mcfqspi_cs_control m5249_cs_control = { + .setup = m5249_cs_setup, + .teardown = m5249_cs_teardown, + .select = m5249_cs_select, + .deselect = m5249_cs_deselect, +}; + +static struct mcfqspi_platform_data m5249_qspi_data = { + .bus_num = 0, + .num_chipselect = 4, + .cs_control = &m5249_cs_control, +}; + +static struct platform_device m5249_qspi = { + .name = "mcfqspi", + .id = 0, + .num_resources = ARRAY_SIZE(m5249_qspi_resources), + .resource = m5249_qspi_resources, + .dev.platform_data = &m5249_qspi_data, +}; + +static void __init m5249_qspi_init(void) +{ + /* QSPI irq setup */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0, + MCF_MBAR + MCFSIM_QSPIICR); + mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI); +} +#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ + + +static struct platform_device *m5249_devices[] __initdata = { + &m5249_uart, +#ifdef CONFIG_M5249C3 + &m5249_smc91x, +#endif +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + &m5249_qspi, +#endif +}; + +/***************************************************************************/ + +static void __init m5249_uart_init_line(int line, int irq) +{ + if (line == 0) { + writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART0); + } else if (line == 1) { + writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART1); + } +} + +static void __init m5249_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5249_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5249_uart_init_line(line, m5249_uart_platform[line].irq); +} + +/***************************************************************************/ + +#ifdef CONFIG_M5249C3 + +static void __init m5249_smc91x_init(void) +{ + u32 gpio; + + /* Set the GPIO line as interrupt source for smc91x device */ + gpio = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); + writel(gpio | 0x40, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); + + gpio = readl(MCF_MBAR2 + MCFSIM2_INTLEVEL5); + writel(gpio | 0x04000000, MCF_MBAR2 + MCFSIM2_INTLEVEL5); +} + +#endif /* CONFIG_M5249C3 */ + +/***************************************************************************/ + +static void __init m5249_timers_init(void) +{ + /* Timer1 is always used as system timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER1ICR); + mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); + +#ifdef CONFIG_HIGHPROFILE + /* Timer2 is to be used as a high speed profile timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER2ICR); + mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); +#endif +} + +/***************************************************************************/ + +void m5249_cpu_reset(void) +{ + local_irq_disable(); + /* Set watchdog to soft reset, and enabled */ + __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); + for (;;) + /* wait for watchdog to timeout */; +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_reset = m5249_cpu_reset; + m5249_timers_init(); + m5249_uarts_init(); +#ifdef CONFIG_M5249C3 + m5249_smc91x_init(); +#endif +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + m5249_qspi_init(); +#endif +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + platform_add_devices(m5249_devices, ARRAY_SIZE(m5249_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/5249/gpio.c b/arch/m68k/platform/5249/gpio.c new file mode 100644 index 000000000000..2b56c6ef65bf --- /dev/null +++ b/arch/m68k/platform/5249/gpio.c @@ -0,0 +1,65 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "GPIO0", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .ngpio = 32, + }, + .pddr = (void __iomem *) MCFSIM2_GPIOENABLE, + .podr = (void __iomem *) MCFSIM2_GPIOWRITE, + .ppdr = (void __iomem *) MCFSIM2_GPIOREAD, + }, + { + .gpio_chip = { + .label = "GPIO1", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .base = 32, + .ngpio = 32, + }, + .pddr = (void __iomem *) MCFSIM2_GPIO1ENABLE, + .podr = (void __iomem *) MCFSIM2_GPIO1WRITE, + .ppdr = (void __iomem *) MCFSIM2_GPIO1READ, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/5249/intc2.c b/arch/m68k/platform/5249/intc2.c new file mode 100644 index 000000000000..8f4b63e17366 --- /dev/null +++ b/arch/m68k/platform/5249/intc2.c @@ -0,0 +1,61 @@ +/* + * intc2.c -- support for the 2nd INTC controller of the 5249 + * + * (C) Copyright 2009, Greg Ungerer <gerg@snapgear.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> + +static void intc2_irq_gpio_mask(struct irq_data *d) +{ + u32 imr; + imr = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); + imr &= ~(0x1 << (d->irq - MCFINTC2_GPIOIRQ0)); + writel(imr, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); +} + +static void intc2_irq_gpio_unmask(struct irq_data *d) +{ + u32 imr; + imr = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); + imr |= (0x1 << (d->irq - MCFINTC2_GPIOIRQ0)); + writel(imr, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); +} + +static void intc2_irq_gpio_ack(struct irq_data *d) +{ + writel(0x1 << (d->irq - MCFINTC2_GPIOIRQ0), MCF_MBAR2 + MCFSIM2_GPIOINTCLEAR); +} + +static struct irq_chip intc2_irq_gpio_chip = { + .name = "CF-INTC2", + .irq_mask = intc2_irq_gpio_mask, + .irq_unmask = intc2_irq_gpio_unmask, + .irq_ack = intc2_irq_gpio_ack, +}; + +static int __init mcf_intc2_init(void) +{ + int irq; + + /* GPIO interrupt sources */ + for (irq = MCFINTC2_GPIOIRQ0; (irq <= MCFINTC2_GPIOIRQ7); irq++) { + set_irq_chip(irq, &intc2_irq_gpio_chip); + set_irq_handler(irq, handle_edge_irq); + } + + return 0; +} + +arch_initcall(mcf_intc2_init); diff --git a/arch/m68k/platform/5272/Makefile b/arch/m68k/platform/5272/Makefile new file mode 100644 index 000000000000..34110fc14301 --- /dev/null +++ b/arch/m68k/platform/5272/Makefile @@ -0,0 +1,18 @@ +# +# Makefile for the linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o intc.o + diff --git a/arch/m68k/platform/5272/config.c b/arch/m68k/platform/5272/config.c new file mode 100644 index 000000000000..65bb582734e1 --- /dev/null +++ b/arch/m68k/platform/5272/config.c @@ -0,0 +1,176 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/5272/config.c + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/phy.h> +#include <linux/phy_fixed.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> + +/***************************************************************************/ + +/* + * Some platforms need software versions of the GPIO data registers. + */ +unsigned short ppdata; +unsigned char ledbank = 0xff; + +/***************************************************************************/ + +static struct mcf_platform_uart m5272_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = MCF_IRQ_UART1, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = MCF_IRQ_UART2, + }, + { }, +}; + +static struct platform_device m5272_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5272_uart_platform, +}; + +static struct resource m5272_fec_resources[] = { + { + .start = MCF_MBAR + 0x840, + .end = MCF_MBAR + 0x840 + 0x1cf, + .flags = IORESOURCE_MEM, + }, + { + .start = MCF_IRQ_ERX, + .end = MCF_IRQ_ERX, + .flags = IORESOURCE_IRQ, + }, + { + .start = MCF_IRQ_ETX, + .end = MCF_IRQ_ETX, + .flags = IORESOURCE_IRQ, + }, + { + .start = MCF_IRQ_ENTC, + .end = MCF_IRQ_ENTC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m5272_fec = { + .name = "fec", + .id = 0, + .num_resources = ARRAY_SIZE(m5272_fec_resources), + .resource = m5272_fec_resources, +}; + +static struct platform_device *m5272_devices[] __initdata = { + &m5272_uart, + &m5272_fec, +}; + +/***************************************************************************/ + +static void __init m5272_uart_init_line(int line, int irq) +{ + u32 v; + + if ((line >= 0) && (line < 2)) { + /* Enable the output lines for the serial ports */ + v = readl(MCF_MBAR + MCFSIM_PBCNT); + v = (v & ~0x000000ff) | 0x00000055; + writel(v, MCF_MBAR + MCFSIM_PBCNT); + + v = readl(MCF_MBAR + MCFSIM_PDCNT); + v = (v & ~0x000003fc) | 0x000002a8; + writel(v, MCF_MBAR + MCFSIM_PDCNT); + } +} + +static void __init m5272_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5272_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5272_uart_init_line(line, m5272_uart_platform[line].irq); +} + +/***************************************************************************/ + +static void m5272_cpu_reset(void) +{ + local_irq_disable(); + /* Set watchdog to reset, and enabled */ + __raw_writew(0, MCF_MBAR + MCFSIM_WIRR); + __raw_writew(1, MCF_MBAR + MCFSIM_WRRR); + __raw_writew(0, MCF_MBAR + MCFSIM_WCR); + for (;;) + /* wait for watchdog to timeout */; +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ +#if defined (CONFIG_MOD5272) + volatile unsigned char *pivrp; + + /* Set base of device vectors to be 64 */ + pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR); + *pivrp = 0x40; +#endif + +#if defined(CONFIG_NETtel) || defined(CONFIG_SCALES) + /* Copy command line from FLASH to local buffer... */ + memcpy(commandp, (char *) 0xf0004000, size); + commandp[size-1] = 0; +#elif defined(CONFIG_CANCam) + /* Copy command line from FLASH to local buffer... */ + memcpy(commandp, (char *) 0xf0010000, size); + commandp[size-1] = 0; +#endif + + mach_reset = m5272_cpu_reset; +} + +/***************************************************************************/ + +/* + * Some 5272 based boards have the FEC ethernet diectly connected to + * an ethernet switch. In this case we need to use the fixed phy type, + * and we need to declare it early in boot. + */ +static struct fixed_phy_status nettel_fixed_phy_status __initdata = { + .link = 1, + .speed = 100, + .duplex = 0, +}; + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + m5272_uarts_init(); + fixed_phy_add(PHY_POLL, 0, &nettel_fixed_phy_status); + platform_add_devices(m5272_devices, ARRAY_SIZE(m5272_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/5272/gpio.c b/arch/m68k/platform/5272/gpio.c new file mode 100644 index 000000000000..57ac10a5d7f7 --- /dev/null +++ b/arch/m68k/platform/5272/gpio.c @@ -0,0 +1,81 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "PA", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .ngpio = 16, + }, + .pddr = (void __iomem *) MCFSIM_PADDR, + .podr = (void __iomem *) MCFSIM_PADAT, + .ppdr = (void __iomem *) MCFSIM_PADAT, + }, + { + .gpio_chip = { + .label = "PB", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .base = 16, + .ngpio = 16, + }, + .pddr = (void __iomem *) MCFSIM_PBDDR, + .podr = (void __iomem *) MCFSIM_PBDAT, + .ppdr = (void __iomem *) MCFSIM_PBDAT, + }, + { + .gpio_chip = { + .label = "PC", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .base = 32, + .ngpio = 16, + }, + .pddr = (void __iomem *) MCFSIM_PCDDR, + .podr = (void __iomem *) MCFSIM_PCDAT, + .ppdr = (void __iomem *) MCFSIM_PCDAT, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/5272/intc.c b/arch/m68k/platform/5272/intc.c new file mode 100644 index 000000000000..969ff0a467c6 --- /dev/null +++ b/arch/m68k/platform/5272/intc.c @@ -0,0 +1,187 @@ +/* + * intc.c -- interrupt controller or ColdFire 5272 SoC + * + * (C) Copyright 2009, Greg Ungerer <gerg@snapgear.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/kernel_stat.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/traps.h> + +/* + * The 5272 ColdFire interrupt controller is nothing like any other + * ColdFire interrupt controller - it truly is completely different. + * Given its age it is unlikely to be used on any other ColdFire CPU. + */ + +/* + * The masking and priproty setting of interrupts on the 5272 is done + * via a set of 4 "Interrupt Controller Registers" (ICR). There is a + * loose mapping of vector number to register and internal bits, but + * a table is the easiest and quickest way to map them. + * + * Note that the external interrupts are edge triggered (unlike the + * internal interrupt sources which are level triggered). Which means + * they also need acknowledgeing via acknowledge bits. + */ +struct irqmap { + unsigned char icr; + unsigned char index; + unsigned char ack; +}; + +static struct irqmap intc_irqmap[MCFINT_VECMAX - MCFINT_VECBASE] = { + /*MCF_IRQ_SPURIOUS*/ { .icr = 0, .index = 0, .ack = 0, }, + /*MCF_IRQ_EINT1*/ { .icr = MCFSIM_ICR1, .index = 28, .ack = 1, }, + /*MCF_IRQ_EINT2*/ { .icr = MCFSIM_ICR1, .index = 24, .ack = 1, }, + /*MCF_IRQ_EINT3*/ { .icr = MCFSIM_ICR1, .index = 20, .ack = 1, }, + /*MCF_IRQ_EINT4*/ { .icr = MCFSIM_ICR1, .index = 16, .ack = 1, }, + /*MCF_IRQ_TIMER1*/ { .icr = MCFSIM_ICR1, .index = 12, .ack = 0, }, + /*MCF_IRQ_TIMER2*/ { .icr = MCFSIM_ICR1, .index = 8, .ack = 0, }, + /*MCF_IRQ_TIMER3*/ { .icr = MCFSIM_ICR1, .index = 4, .ack = 0, }, + /*MCF_IRQ_TIMER4*/ { .icr = MCFSIM_ICR1, .index = 0, .ack = 0, }, + /*MCF_IRQ_UART1*/ { .icr = MCFSIM_ICR2, .index = 28, .ack = 0, }, + /*MCF_IRQ_UART2*/ { .icr = MCFSIM_ICR2, .index = 24, .ack = 0, }, + /*MCF_IRQ_PLIP*/ { .icr = MCFSIM_ICR2, .index = 20, .ack = 0, }, + /*MCF_IRQ_PLIA*/ { .icr = MCFSIM_ICR2, .index = 16, .ack = 0, }, + /*MCF_IRQ_USB0*/ { .icr = MCFSIM_ICR2, .index = 12, .ack = 0, }, + /*MCF_IRQ_USB1*/ { .icr = MCFSIM_ICR2, .index = 8, .ack = 0, }, + /*MCF_IRQ_USB2*/ { .icr = MCFSIM_ICR2, .index = 4, .ack = 0, }, + /*MCF_IRQ_USB3*/ { .icr = MCFSIM_ICR2, .index = 0, .ack = 0, }, + /*MCF_IRQ_USB4*/ { .icr = MCFSIM_ICR3, .index = 28, .ack = 0, }, + /*MCF_IRQ_USB5*/ { .icr = MCFSIM_ICR3, .index = 24, .ack = 0, }, + /*MCF_IRQ_USB6*/ { .icr = MCFSIM_ICR3, .index = 20, .ack = 0, }, + /*MCF_IRQ_USB7*/ { .icr = MCFSIM_ICR3, .index = 16, .ack = 0, }, + /*MCF_IRQ_DMA*/ { .icr = MCFSIM_ICR3, .index = 12, .ack = 0, }, + /*MCF_IRQ_ERX*/ { .icr = MCFSIM_ICR3, .index = 8, .ack = 0, }, + /*MCF_IRQ_ETX*/ { .icr = MCFSIM_ICR3, .index = 4, .ack = 0, }, + /*MCF_IRQ_ENTC*/ { .icr = MCFSIM_ICR3, .index = 0, .ack = 0, }, + /*MCF_IRQ_QSPI*/ { .icr = MCFSIM_ICR4, .index = 28, .ack = 0, }, + /*MCF_IRQ_EINT5*/ { .icr = MCFSIM_ICR4, .index = 24, .ack = 1, }, + /*MCF_IRQ_EINT6*/ { .icr = MCFSIM_ICR4, .index = 20, .ack = 1, }, + /*MCF_IRQ_SWTO*/ { .icr = MCFSIM_ICR4, .index = 16, .ack = 0, }, +}; + +/* + * The act of masking the interrupt also has a side effect of 'ack'ing + * an interrupt on this irq (for the external irqs). So this mask function + * is also an ack_mask function. + */ +static void intc_irq_mask(struct irq_data *d) +{ + unsigned int irq = d->irq; + + if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { + u32 v; + irq -= MCFINT_VECBASE; + v = 0x8 << intc_irqmap[irq].index; + writel(v, MCF_MBAR + intc_irqmap[irq].icr); + } +} + +static void intc_irq_unmask(struct irq_data *d) +{ + unsigned int irq = d->irq; + + if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { + u32 v; + irq -= MCFINT_VECBASE; + v = 0xd << intc_irqmap[irq].index; + writel(v, MCF_MBAR + intc_irqmap[irq].icr); + } +} + +static void intc_irq_ack(struct irq_data *d) +{ + unsigned int irq = d->irq; + + /* Only external interrupts are acked */ + if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { + irq -= MCFINT_VECBASE; + if (intc_irqmap[irq].ack) { + u32 v; + v = readl(MCF_MBAR + intc_irqmap[irq].icr); + v &= (0x7 << intc_irqmap[irq].index); + v |= (0x8 << intc_irqmap[irq].index); + writel(v, MCF_MBAR + intc_irqmap[irq].icr); + } + } +} + +static int intc_irq_set_type(struct irq_data *d, unsigned int type) +{ + unsigned int irq = d->irq; + + if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { + irq -= MCFINT_VECBASE; + if (intc_irqmap[irq].ack) { + u32 v; + v = readl(MCF_MBAR + MCFSIM_PITR); + if (type == IRQ_TYPE_EDGE_FALLING) + v &= ~(0x1 << (32 - irq)); + else + v |= (0x1 << (32 - irq)); + writel(v, MCF_MBAR + MCFSIM_PITR); + } + } + return 0; +} + +/* + * Simple flow handler to deal with the external edge triggered interrupts. + * We need to be careful with the masking/acking due to the side effects + * of masking an interrupt. + */ +static void intc_external_irq(unsigned int irq, struct irq_desc *desc) +{ + get_irq_desc_chip(desc)->irq_ack(&desc->irq_data); + handle_simple_irq(irq, desc); +} + +static struct irq_chip intc_irq_chip = { + .name = "CF-INTC", + .irq_mask = intc_irq_mask, + .irq_unmask = intc_irq_unmask, + .irq_mask_ack = intc_irq_mask, + .irq_ack = intc_irq_ack, + .irq_set_type = intc_irq_set_type, +}; + +void __init init_IRQ(void) +{ + int irq, edge; + + init_vectors(); + + /* Mask all interrupt sources */ + writel(0x88888888, MCF_MBAR + MCFSIM_ICR1); + writel(0x88888888, MCF_MBAR + MCFSIM_ICR2); + writel(0x88888888, MCF_MBAR + MCFSIM_ICR3); + writel(0x88888888, MCF_MBAR + MCFSIM_ICR4); + + for (irq = 0; (irq < NR_IRQS); irq++) { + set_irq_chip(irq, &intc_irq_chip); + edge = 0; + if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) + edge = intc_irqmap[irq - MCFINT_VECBASE].ack; + if (edge) { + set_irq_type(irq, IRQ_TYPE_EDGE_RISING); + set_irq_handler(irq, intc_external_irq); + } else { + set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH); + set_irq_handler(irq, handle_level_irq); + } + } +} + diff --git a/arch/m68k/platform/527x/Makefile b/arch/m68k/platform/527x/Makefile new file mode 100644 index 000000000000..6ac4b57370ea --- /dev/null +++ b/arch/m68k/platform/527x/Makefile @@ -0,0 +1,18 @@ +# +# Makefile for the linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o + diff --git a/arch/m68k/platform/527x/config.c b/arch/m68k/platform/527x/config.c new file mode 100644 index 000000000000..fa359593b613 --- /dev/null +++ b/arch/m68k/platform/527x/config.c @@ -0,0 +1,384 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/527x/config.c + * + * Sub-architcture dependant initialization code for the Freescale + * 5270/5271 CPUs. + * + * Copyright (C) 1999-2004, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/spi/spi.h> +#include <linux/gpio.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfqspi.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m527x_uart_platform[] = { + { + .mapbase = MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART1, + }, + { + .mapbase = MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART2, + }, + { }, +}; + +static struct platform_device m527x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m527x_uart_platform, +}; + +static struct resource m527x_fec0_resources[] = { + { + .start = MCFFEC_BASE0, + .end = MCFFEC_BASE0 + MCFFEC_SIZE0 - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = 64 + 23, + .end = 64 + 23, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 27, + .end = 64 + 27, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 29, + .end = 64 + 29, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource m527x_fec1_resources[] = { + { + .start = MCFFEC_BASE1, + .end = MCFFEC_BASE1 + MCFFEC_SIZE1 - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = 128 + 23, + .end = 128 + 23, + .flags = IORESOURCE_IRQ, + }, + { + .start = 128 + 27, + .end = 128 + 27, + .flags = IORESOURCE_IRQ, + }, + { + .start = 128 + 29, + .end = 128 + 29, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m527x_fec[] = { + { + .name = "fec", + .id = 0, + .num_resources = ARRAY_SIZE(m527x_fec0_resources), + .resource = m527x_fec0_resources, + }, + { + .name = "fec", + .id = 1, + .num_resources = ARRAY_SIZE(m527x_fec1_resources), + .resource = m527x_fec1_resources, + }, +}; + +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) +static struct resource m527x_qspi_resources[] = { + { + .start = MCFQSPI_IOBASE, + .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = MCFINT_VECBASE + MCFINT_QSPI, + .end = MCFINT_VECBASE + MCFINT_QSPI, + .flags = IORESOURCE_IRQ, + }, +}; + +#if defined(CONFIG_M5271) +#define MCFQSPI_CS0 91 +#define MCFQSPI_CS1 92 +#define MCFQSPI_CS2 99 +#define MCFQSPI_CS3 103 +#elif defined(CONFIG_M5275) +#define MCFQSPI_CS0 59 +#define MCFQSPI_CS1 60 +#define MCFQSPI_CS2 61 +#define MCFQSPI_CS3 62 +#endif + +static int m527x_cs_setup(struct mcfqspi_cs_control *cs_control) +{ + int status; + + status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); + goto fail0; + } + status = gpio_direction_output(MCFQSPI_CS0, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); + goto fail1; + } + + status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); + goto fail1; + } + status = gpio_direction_output(MCFQSPI_CS1, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); + goto fail2; + } + + status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); + goto fail2; + } + status = gpio_direction_output(MCFQSPI_CS2, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); + goto fail3; + } + + status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS3 failed\n"); + goto fail3; + } + status = gpio_direction_output(MCFQSPI_CS3, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n"); + goto fail4; + } + + return 0; + +fail4: + gpio_free(MCFQSPI_CS3); +fail3: + gpio_free(MCFQSPI_CS2); +fail2: + gpio_free(MCFQSPI_CS1); +fail1: + gpio_free(MCFQSPI_CS0); +fail0: + return status; +} + +static void m527x_cs_teardown(struct mcfqspi_cs_control *cs_control) +{ + gpio_free(MCFQSPI_CS3); + gpio_free(MCFQSPI_CS2); + gpio_free(MCFQSPI_CS1); + gpio_free(MCFQSPI_CS0); +} + +static void m527x_cs_select(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + switch (chip_select) { + case 0: + gpio_set_value(MCFQSPI_CS0, cs_high); + break; + case 1: + gpio_set_value(MCFQSPI_CS1, cs_high); + break; + case 2: + gpio_set_value(MCFQSPI_CS2, cs_high); + break; + case 3: + gpio_set_value(MCFQSPI_CS3, cs_high); + break; + } +} + +static void m527x_cs_deselect(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + switch (chip_select) { + case 0: + gpio_set_value(MCFQSPI_CS0, !cs_high); + break; + case 1: + gpio_set_value(MCFQSPI_CS1, !cs_high); + break; + case 2: + gpio_set_value(MCFQSPI_CS2, !cs_high); + break; + case 3: + gpio_set_value(MCFQSPI_CS3, !cs_high); + break; + } +} + +static struct mcfqspi_cs_control m527x_cs_control = { + .setup = m527x_cs_setup, + .teardown = m527x_cs_teardown, + .select = m527x_cs_select, + .deselect = m527x_cs_deselect, +}; + +static struct mcfqspi_platform_data m527x_qspi_data = { + .bus_num = 0, + .num_chipselect = 4, + .cs_control = &m527x_cs_control, +}; + +static struct platform_device m527x_qspi = { + .name = "mcfqspi", + .id = 0, + .num_resources = ARRAY_SIZE(m527x_qspi_resources), + .resource = m527x_qspi_resources, + .dev.platform_data = &m527x_qspi_data, +}; + +static void __init m527x_qspi_init(void) +{ +#if defined(CONFIG_M5271) + u16 par; + + /* setup QSPS pins for QSPI with gpio CS control */ + writeb(0x1f, MCFGPIO_PAR_QSPI); + /* and CS2 & CS3 as gpio */ + par = readw(MCFGPIO_PAR_TIMER); + par &= 0x3f3f; + writew(par, MCFGPIO_PAR_TIMER); +#elif defined(CONFIG_M5275) + /* setup QSPS pins for QSPI with gpio CS control */ + writew(0x003e, MCFGPIO_PAR_QSPI); +#endif +} +#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ + +static struct platform_device *m527x_devices[] __initdata = { + &m527x_uart, + &m527x_fec[0], +#ifdef CONFIG_FEC2 + &m527x_fec[1], +#endif +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + &m527x_qspi, +#endif +}; + +/***************************************************************************/ + +static void __init m527x_uart_init_line(int line, int irq) +{ + u16 sepmask; + + if ((line < 0) || (line > 2)) + return; + + /* + * External Pin Mask Setting & Enable External Pin for Interface + */ + sepmask = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART); + if (line == 0) + sepmask |= UART0_ENABLE_MASK; + else if (line == 1) + sepmask |= UART1_ENABLE_MASK; + else if (line == 2) + sepmask |= UART2_ENABLE_MASK; + writew(sepmask, MCF_IPSBAR + MCF_GPIO_PAR_UART); +} + +static void __init m527x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m527x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m527x_uart_init_line(line, m527x_uart_platform[line].irq); +} + +/***************************************************************************/ + +static void __init m527x_fec_init(void) +{ + u16 par; + u8 v; + + /* Set multi-function pins to ethernet mode for fec0 */ +#if defined(CONFIG_M5271) + v = readb(MCF_IPSBAR + 0x100047); + writeb(v | 0xf0, MCF_IPSBAR + 0x100047); +#else + par = readw(MCF_IPSBAR + 0x100082); + writew(par | 0xf00, MCF_IPSBAR + 0x100082); + v = readb(MCF_IPSBAR + 0x100078); + writeb(v | 0xc0, MCF_IPSBAR + 0x100078); +#endif + +#ifdef CONFIG_FEC2 + /* Set multi-function pins to ethernet mode for fec1 */ + par = readw(MCF_IPSBAR + 0x100082); + writew(par | 0xa0, MCF_IPSBAR + 0x100082); + v = readb(MCF_IPSBAR + 0x100079); + writeb(v | 0xc0, MCF_IPSBAR + 0x100079); +#endif +} + +/***************************************************************************/ + +static void m527x_cpu_reset(void) +{ + local_irq_disable(); + __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR); +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_reset = m527x_cpu_reset; + m527x_uarts_init(); + m527x_fec_init(); +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + m527x_qspi_init(); +#endif +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + platform_add_devices(m527x_devices, ARRAY_SIZE(m527x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/527x/gpio.c b/arch/m68k/platform/527x/gpio.c new file mode 100644 index 000000000000..205da0aa0f2d --- /dev/null +++ b/arch/m68k/platform/527x/gpio.c @@ -0,0 +1,609 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { +#if defined(CONFIG_M5271) + { + .gpio_chip = { + .label = "PIRQ", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .base = 1, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFEPORT_EPDDR, + .podr = (void __iomem *) MCFEPORT_EPDR, + .ppdr = (void __iomem *) MCFEPORT_EPPDR, + }, + { + .gpio_chip = { + .label = "ADDR", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 13, + .ngpio = 3, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_ADDR, + .podr = (void __iomem *) MCFGPIO_PODR_ADDR, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, + .setr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, + .clrr = (void __iomem *) MCFGPIO_PCLRR_ADDR, + }, + { + .gpio_chip = { + .label = "DATAH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 16, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_DATAH, + .podr = (void __iomem *) MCFGPIO_PODR_DATAH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAH, + }, + { + .gpio_chip = { + .label = "DATAL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 24, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_DATAL, + .podr = (void __iomem *) MCFGPIO_PODR_DATAL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAL, + }, + { + .gpio_chip = { + .label = "BUSCTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 32, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, + .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, + }, + { + .gpio_chip = { + .label = "BS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 40, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BS, + .podr = (void __iomem *) MCFGPIO_PODR_BS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BS, + }, + { + .gpio_chip = { + .label = "CS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 49, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_CS, + .podr = (void __iomem *) MCFGPIO_PODR_CS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, + }, + { + .gpio_chip = { + .label = "SDRAM", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 56, + .ngpio = 6, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_SDRAM, + .podr = (void __iomem *) MCFGPIO_PODR_SDRAM, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, + .setr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, + .clrr = (void __iomem *) MCFGPIO_PCLRR_SDRAM, + }, + { + .gpio_chip = { + .label = "FECI2C", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 64, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, + .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, + }, + { + .gpio_chip = { + .label = "UARTH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 72, + .ngpio = 2, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UARTH, + .podr = (void __iomem *) MCFGPIO_PODR_UARTH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTH, + }, + { + .gpio_chip = { + .label = "UARTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 80, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UARTL, + .podr = (void __iomem *) MCFGPIO_PODR_UARTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTL, + }, + { + .gpio_chip = { + .label = "QSPI", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 88, + .ngpio = 5, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, + .podr = (void __iomem *) MCFGPIO_PODR_QSPI, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, + }, + { + .gpio_chip = { + .label = "TIMER", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 96, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER, + .podr = (void __iomem *) MCFGPIO_PODR_TIMER, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER, + }, +#elif defined(CONFIG_M5275) + { + .gpio_chip = { + .label = "PIRQ", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .base = 1, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFEPORT_EPDDR, + .podr = (void __iomem *) MCFEPORT_EPDR, + .ppdr = (void __iomem *) MCFEPORT_EPPDR, + }, + { + .gpio_chip = { + .label = "BUSCTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 8, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, + .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, + }, + { + .gpio_chip = { + .label = "ADDR", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 21, + .ngpio = 3, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_ADDR, + .podr = (void __iomem *) MCFGPIO_PODR_ADDR, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, + .setr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, + .clrr = (void __iomem *) MCFGPIO_PCLRR_ADDR, + }, + { + .gpio_chip = { + .label = "CS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 25, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_CS, + .podr = (void __iomem *) MCFGPIO_PODR_CS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, + }, + { + .gpio_chip = { + .label = "FEC0H", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 32, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FEC0H, + .podr = (void __iomem *) MCFGPIO_PODR_FEC0H, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FEC0H, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FEC0H, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FEC0H, + }, + { + .gpio_chip = { + .label = "FEC0L", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 40, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FEC0L, + .podr = (void __iomem *) MCFGPIO_PODR_FEC0L, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FEC0L, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FEC0L, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FEC0L, + }, + { + .gpio_chip = { + .label = "FECI2C", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 48, + .ngpio = 6, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, + .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, + }, + { + .gpio_chip = { + .label = "QSPI", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 56, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, + .podr = (void __iomem *) MCFGPIO_PODR_QSPI, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, + }, + { + .gpio_chip = { + .label = "SDRAM", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 64, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_SDRAM, + .podr = (void __iomem *) MCFGPIO_PODR_SDRAM, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, + .setr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, + .clrr = (void __iomem *) MCFGPIO_PCLRR_SDRAM, + }, + { + .gpio_chip = { + .label = "TIMERH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 72, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_TIMERH, + .podr = (void __iomem *) MCFGPIO_PODR_TIMERH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMERH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMERH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMERH, + }, + { + .gpio_chip = { + .label = "TIMERL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 80, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_TIMERL, + .podr = (void __iomem *) MCFGPIO_PODR_TIMERL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMERL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMERL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMERL, + }, + { + .gpio_chip = { + .label = "UARTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 88, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UARTL, + .podr = (void __iomem *) MCFGPIO_PODR_UARTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTL, + }, + { + .gpio_chip = { + .label = "FEC1H", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 96, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FEC1H, + .podr = (void __iomem *) MCFGPIO_PODR_FEC1H, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FEC1H, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FEC1H, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FEC1H, + }, + { + .gpio_chip = { + .label = "FEC1L", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 104, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FEC1L, + .podr = (void __iomem *) MCFGPIO_PODR_FEC1L, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FEC1L, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FEC1L, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FEC1L, + }, + { + .gpio_chip = { + .label = "BS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 114, + .ngpio = 2, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BS, + .podr = (void __iomem *) MCFGPIO_PODR_BS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BS, + }, + { + .gpio_chip = { + .label = "IRQ", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 121, + .ngpio = 7, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_IRQ, + .podr = (void __iomem *) MCFGPIO_PODR_IRQ, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_IRQ, + .setr = (void __iomem *) MCFGPIO_PPDSDR_IRQ, + .clrr = (void __iomem *) MCFGPIO_PCLRR_IRQ, + }, + { + .gpio_chip = { + .label = "USBH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 128, + .ngpio = 1, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_USBH, + .podr = (void __iomem *) MCFGPIO_PODR_USBH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_USBH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_USBH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_USBH, + }, + { + .gpio_chip = { + .label = "USBL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 136, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_USBL, + .podr = (void __iomem *) MCFGPIO_PODR_USBL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_USBL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_USBL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_USBL, + }, + { + .gpio_chip = { + .label = "UARTH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 144, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UARTH, + .podr = (void __iomem *) MCFGPIO_PODR_UARTH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTH, + }, +#endif +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/528x/Makefile b/arch/m68k/platform/528x/Makefile new file mode 100644 index 000000000000..6ac4b57370ea --- /dev/null +++ b/arch/m68k/platform/528x/Makefile @@ -0,0 +1,18 @@ +# +# Makefile for the linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o + diff --git a/arch/m68k/platform/528x/config.c b/arch/m68k/platform/528x/config.c new file mode 100644 index 000000000000..ac39fc661219 --- /dev/null +++ b/arch/m68k/platform/528x/config.c @@ -0,0 +1,320 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/528x/config.c + * + * Sub-architcture dependant initialization code for the Freescale + * 5280, 5281 and 5282 CPUs. + * + * Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/spi/spi.h> +#include <linux/gpio.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfqspi.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m528x_uart_platform[] = { + { + .mapbase = MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART0 + 1, + }, + { + .mapbase = MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART0 + 2, + }, + { }, +}; + +static struct platform_device m528x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m528x_uart_platform, +}; + +static struct resource m528x_fec_resources[] = { + { + .start = MCFFEC_BASE, + .end = MCFFEC_BASE + MCFFEC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = 64 + 23, + .end = 64 + 23, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 27, + .end = 64 + 27, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 29, + .end = 64 + 29, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m528x_fec = { + .name = "fec", + .id = 0, + .num_resources = ARRAY_SIZE(m528x_fec_resources), + .resource = m528x_fec_resources, +}; + +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) +static struct resource m528x_qspi_resources[] = { + { + .start = MCFQSPI_IOBASE, + .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = MCFINT_VECBASE + MCFINT_QSPI, + .end = MCFINT_VECBASE + MCFINT_QSPI, + .flags = IORESOURCE_IRQ, + }, +}; + +#define MCFQSPI_CS0 147 +#define MCFQSPI_CS1 148 +#define MCFQSPI_CS2 149 +#define MCFQSPI_CS3 150 + +static int m528x_cs_setup(struct mcfqspi_cs_control *cs_control) +{ + int status; + + status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); + goto fail0; + } + status = gpio_direction_output(MCFQSPI_CS0, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); + goto fail1; + } + + status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); + goto fail1; + } + status = gpio_direction_output(MCFQSPI_CS1, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); + goto fail2; + } + + status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); + goto fail2; + } + status = gpio_direction_output(MCFQSPI_CS2, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); + goto fail3; + } + + status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS3 failed\n"); + goto fail3; + } + status = gpio_direction_output(MCFQSPI_CS3, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n"); + goto fail4; + } + + return 0; + +fail4: + gpio_free(MCFQSPI_CS3); +fail3: + gpio_free(MCFQSPI_CS2); +fail2: + gpio_free(MCFQSPI_CS1); +fail1: + gpio_free(MCFQSPI_CS0); +fail0: + return status; +} + +static void m528x_cs_teardown(struct mcfqspi_cs_control *cs_control) +{ + gpio_free(MCFQSPI_CS3); + gpio_free(MCFQSPI_CS2); + gpio_free(MCFQSPI_CS1); + gpio_free(MCFQSPI_CS0); +} + +static void m528x_cs_select(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + gpio_set_value(MCFQSPI_CS0 + chip_select, cs_high); +} + +static void m528x_cs_deselect(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + gpio_set_value(MCFQSPI_CS0 + chip_select, !cs_high); +} + +static struct mcfqspi_cs_control m528x_cs_control = { + .setup = m528x_cs_setup, + .teardown = m528x_cs_teardown, + .select = m528x_cs_select, + .deselect = m528x_cs_deselect, +}; + +static struct mcfqspi_platform_data m528x_qspi_data = { + .bus_num = 0, + .num_chipselect = 4, + .cs_control = &m528x_cs_control, +}; + +static struct platform_device m528x_qspi = { + .name = "mcfqspi", + .id = 0, + .num_resources = ARRAY_SIZE(m528x_qspi_resources), + .resource = m528x_qspi_resources, + .dev.platform_data = &m528x_qspi_data, +}; + +static void __init m528x_qspi_init(void) +{ + /* setup Port QS for QSPI with gpio CS control */ + __raw_writeb(0x07, MCFGPIO_PQSPAR); +} +#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ + +static struct platform_device *m528x_devices[] __initdata = { + &m528x_uart, + &m528x_fec, +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + &m528x_qspi, +#endif +}; + +/***************************************************************************/ + +static void __init m528x_uart_init_line(int line, int irq) +{ + u8 port; + + if ((line < 0) || (line > 2)) + return; + + /* make sure PUAPAR is set for UART0 and UART1 */ + if (line < 2) { + port = readb(MCF5282_GPIO_PUAPAR); + port |= (0x03 << (line * 2)); + writeb(port, MCF5282_GPIO_PUAPAR); + } +} + +static void __init m528x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m528x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m528x_uart_init_line(line, m528x_uart_platform[line].irq); +} + +/***************************************************************************/ + +static void __init m528x_fec_init(void) +{ + u16 v16; + + /* Set multi-function pins to ethernet mode for fec0 */ + v16 = readw(MCF_IPSBAR + 0x100056); + writew(v16 | 0xf00, MCF_IPSBAR + 0x100056); + writeb(0xc0, MCF_IPSBAR + 0x100058); +} + +/***************************************************************************/ + +static void m528x_cpu_reset(void) +{ + local_irq_disable(); + __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR); +} + +/***************************************************************************/ + +#ifdef CONFIG_WILDFIRE +void wildfire_halt(void) +{ + writeb(0, 0x30000007); + writeb(0x2, 0x30000007); +} +#endif + +#ifdef CONFIG_WILDFIREMOD +void wildfiremod_halt(void) +{ + printk(KERN_INFO "WildFireMod hibernating...\n"); + + /* Set portE.5 to Digital IO */ + MCF5282_GPIO_PEPAR &= ~(1 << (5 * 2)); + + /* Make portE.5 an output */ + MCF5282_GPIO_DDRE |= (1 << 5); + + /* Now toggle portE.5 from low to high */ + MCF5282_GPIO_PORTE &= ~(1 << 5); + MCF5282_GPIO_PORTE |= (1 << 5); + + printk(KERN_EMERG "Failed to hibernate. Halting!\n"); +} +#endif + +void __init config_BSP(char *commandp, int size) +{ +#ifdef CONFIG_WILDFIRE + mach_halt = wildfire_halt; +#endif +#ifdef CONFIG_WILDFIREMOD + mach_halt = wildfiremod_halt; +#endif +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + mach_reset = m528x_cpu_reset; + m528x_uarts_init(); + m528x_fec_init(); +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + m528x_qspi_init(); +#endif + platform_add_devices(m528x_devices, ARRAY_SIZE(m528x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/528x/gpio.c b/arch/m68k/platform/528x/gpio.c new file mode 100644 index 000000000000..526db665d87e --- /dev/null +++ b/arch/m68k/platform/528x/gpio.c @@ -0,0 +1,438 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "NQ", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .base = 1, + .ngpio = 7, + }, + .pddr = (void __iomem *)MCFEPORT_EPDDR, + .podr = (void __iomem *)MCFEPORT_EPDR, + .ppdr = (void __iomem *)MCFEPORT_EPPDR, + }, + { + .gpio_chip = { + .label = "TA", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 8, + .ngpio = 4, + }, + .pddr = (void __iomem *)MCFGPTA_GPTDDR, + .podr = (void __iomem *)MCFGPTA_GPTPORT, + .ppdr = (void __iomem *)MCFGPTB_GPTPORT, + }, + { + .gpio_chip = { + .label = "TB", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 16, + .ngpio = 4, + }, + .pddr = (void __iomem *)MCFGPTB_GPTDDR, + .podr = (void __iomem *)MCFGPTB_GPTPORT, + .ppdr = (void __iomem *)MCFGPTB_GPTPORT, + }, + { + .gpio_chip = { + .label = "QA", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 24, + .ngpio = 4, + }, + .pddr = (void __iomem *)MCFQADC_DDRQA, + .podr = (void __iomem *)MCFQADC_PORTQA, + .ppdr = (void __iomem *)MCFQADC_PORTQA, + }, + { + .gpio_chip = { + .label = "QB", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 32, + .ngpio = 4, + }, + .pddr = (void __iomem *)MCFQADC_DDRQB, + .podr = (void __iomem *)MCFQADC_PORTQB, + .ppdr = (void __iomem *)MCFQADC_PORTQB, + }, + { + .gpio_chip = { + .label = "A", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 40, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRA, + .podr = (void __iomem *)MCFGPIO_PORTA, + .ppdr = (void __iomem *)MCFGPIO_PORTAP, + .setr = (void __iomem *)MCFGPIO_SETA, + .clrr = (void __iomem *)MCFGPIO_CLRA, + }, + { + .gpio_chip = { + .label = "B", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 48, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRB, + .podr = (void __iomem *)MCFGPIO_PORTB, + .ppdr = (void __iomem *)MCFGPIO_PORTBP, + .setr = (void __iomem *)MCFGPIO_SETB, + .clrr = (void __iomem *)MCFGPIO_CLRB, + }, + { + .gpio_chip = { + .label = "C", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 56, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRC, + .podr = (void __iomem *)MCFGPIO_PORTC, + .ppdr = (void __iomem *)MCFGPIO_PORTCP, + .setr = (void __iomem *)MCFGPIO_SETC, + .clrr = (void __iomem *)MCFGPIO_CLRC, + }, + { + .gpio_chip = { + .label = "D", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 64, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRD, + .podr = (void __iomem *)MCFGPIO_PORTD, + .ppdr = (void __iomem *)MCFGPIO_PORTDP, + .setr = (void __iomem *)MCFGPIO_SETD, + .clrr = (void __iomem *)MCFGPIO_CLRD, + }, + { + .gpio_chip = { + .label = "E", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 72, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRE, + .podr = (void __iomem *)MCFGPIO_PORTE, + .ppdr = (void __iomem *)MCFGPIO_PORTEP, + .setr = (void __iomem *)MCFGPIO_SETE, + .clrr = (void __iomem *)MCFGPIO_CLRE, + }, + { + .gpio_chip = { + .label = "F", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 80, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRF, + .podr = (void __iomem *)MCFGPIO_PORTF, + .ppdr = (void __iomem *)MCFGPIO_PORTFP, + .setr = (void __iomem *)MCFGPIO_SETF, + .clrr = (void __iomem *)MCFGPIO_CLRF, + }, + { + .gpio_chip = { + .label = "G", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 88, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRG, + .podr = (void __iomem *)MCFGPIO_PORTG, + .ppdr = (void __iomem *)MCFGPIO_PORTGP, + .setr = (void __iomem *)MCFGPIO_SETG, + .clrr = (void __iomem *)MCFGPIO_CLRG, + }, + { + .gpio_chip = { + .label = "H", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 96, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRH, + .podr = (void __iomem *)MCFGPIO_PORTH, + .ppdr = (void __iomem *)MCFGPIO_PORTHP, + .setr = (void __iomem *)MCFGPIO_SETH, + .clrr = (void __iomem *)MCFGPIO_CLRH, + }, + { + .gpio_chip = { + .label = "J", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 104, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRJ, + .podr = (void __iomem *)MCFGPIO_PORTJ, + .ppdr = (void __iomem *)MCFGPIO_PORTJP, + .setr = (void __iomem *)MCFGPIO_SETJ, + .clrr = (void __iomem *)MCFGPIO_CLRJ, + }, + { + .gpio_chip = { + .label = "DD", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 112, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDRDD, + .podr = (void __iomem *)MCFGPIO_PORTDD, + .ppdr = (void __iomem *)MCFGPIO_PORTDDP, + .setr = (void __iomem *)MCFGPIO_SETDD, + .clrr = (void __iomem *)MCFGPIO_CLRDD, + }, + { + .gpio_chip = { + .label = "EH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 120, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDREH, + .podr = (void __iomem *)MCFGPIO_PORTEH, + .ppdr = (void __iomem *)MCFGPIO_PORTEHP, + .setr = (void __iomem *)MCFGPIO_SETEH, + .clrr = (void __iomem *)MCFGPIO_CLREH, + }, + { + .gpio_chip = { + .label = "EL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 128, + .ngpio = 8, + }, + .pddr = (void __iomem *)MCFGPIO_DDREL, + .podr = (void __iomem *)MCFGPIO_PORTEL, + .ppdr = (void __iomem *)MCFGPIO_PORTELP, + .setr = (void __iomem *)MCFGPIO_SETEL, + .clrr = (void __iomem *)MCFGPIO_CLREL, + }, + { + .gpio_chip = { + .label = "AS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 136, + .ngpio = 6, + }, + .pddr = (void __iomem *)MCFGPIO_DDRAS, + .podr = (void __iomem *)MCFGPIO_PORTAS, + .ppdr = (void __iomem *)MCFGPIO_PORTASP, + .setr = (void __iomem *)MCFGPIO_SETAS, + .clrr = (void __iomem *)MCFGPIO_CLRAS, + }, + { + .gpio_chip = { + .label = "QS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 144, + .ngpio = 7, + }, + .pddr = (void __iomem *)MCFGPIO_DDRQS, + .podr = (void __iomem *)MCFGPIO_PORTQS, + .ppdr = (void __iomem *)MCFGPIO_PORTQSP, + .setr = (void __iomem *)MCFGPIO_SETQS, + .clrr = (void __iomem *)MCFGPIO_CLRQS, + }, + { + .gpio_chip = { + .label = "SD", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 152, + .ngpio = 6, + }, + .pddr = (void __iomem *)MCFGPIO_DDRSD, + .podr = (void __iomem *)MCFGPIO_PORTSD, + .ppdr = (void __iomem *)MCFGPIO_PORTSDP, + .setr = (void __iomem *)MCFGPIO_SETSD, + .clrr = (void __iomem *)MCFGPIO_CLRSD, + }, + { + .gpio_chip = { + .label = "TC", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 160, + .ngpio = 4, + }, + .pddr = (void __iomem *)MCFGPIO_DDRTC, + .podr = (void __iomem *)MCFGPIO_PORTTC, + .ppdr = (void __iomem *)MCFGPIO_PORTTCP, + .setr = (void __iomem *)MCFGPIO_SETTC, + .clrr = (void __iomem *)MCFGPIO_CLRTC, + }, + { + .gpio_chip = { + .label = "TD", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 168, + .ngpio = 4, + }, + .pddr = (void __iomem *)MCFGPIO_DDRTD, + .podr = (void __iomem *)MCFGPIO_PORTTD, + .ppdr = (void __iomem *)MCFGPIO_PORTTDP, + .setr = (void __iomem *)MCFGPIO_SETTD, + .clrr = (void __iomem *)MCFGPIO_CLRTD, + }, + { + .gpio_chip = { + .label = "UA", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 176, + .ngpio = 4, + }, + .pddr = (void __iomem *)MCFGPIO_DDRUA, + .podr = (void __iomem *)MCFGPIO_PORTUA, + .ppdr = (void __iomem *)MCFGPIO_PORTUAP, + .setr = (void __iomem *)MCFGPIO_SETUA, + .clrr = (void __iomem *)MCFGPIO_CLRUA, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/5307/Makefile b/arch/m68k/platform/5307/Makefile new file mode 100644 index 000000000000..d4293b791f2e --- /dev/null +++ b/arch/m68k/platform/5307/Makefile @@ -0,0 +1,20 @@ +# +# Makefile for the m68knommu kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y += config.o gpio.o +obj-$(CONFIG_NETtel) += nettel.o +obj-$(CONFIG_CLEOPATRA) += nettel.o + diff --git a/arch/m68k/platform/5307/config.c b/arch/m68k/platform/5307/config.c new file mode 100644 index 000000000000..00900ac06a9c --- /dev/null +++ b/arch/m68k/platform/5307/config.c @@ -0,0 +1,147 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/5307/config.c + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2000, Lineo (www.lineo.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfwdebug.h> + +/***************************************************************************/ + +/* + * Some platforms need software versions of the GPIO data registers. + */ +unsigned short ppdata; +unsigned char ledbank = 0xff; + +/***************************************************************************/ + +static struct mcf_platform_uart m5307_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, +}; + +static struct platform_device m5307_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5307_uart_platform, +}; + +static struct platform_device *m5307_devices[] __initdata = { + &m5307_uart, +}; + +/***************************************************************************/ + +static void __init m5307_uart_init_line(int line, int irq) +{ + if (line == 0) { + writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART0); + } else if (line == 1) { + writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART1); + } +} + +static void __init m5307_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5307_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5307_uart_init_line(line, m5307_uart_platform[line].irq); +} + +/***************************************************************************/ + +static void __init m5307_timers_init(void) +{ + /* Timer1 is always used as system timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER1ICR); + mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); + +#ifdef CONFIG_HIGHPROFILE + /* Timer2 is to be used as a high speed profile timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER2ICR); + mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); +#endif +} + +/***************************************************************************/ + +void m5307_cpu_reset(void) +{ + local_irq_disable(); + /* Set watchdog to soft reset, and enabled */ + __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); + for (;;) + /* wait for watchdog to timeout */; +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ +#if defined(CONFIG_NETtel) || \ + defined(CONFIG_SECUREEDGEMP3) || defined(CONFIG_CLEOPATRA) + /* Copy command line from FLASH to local buffer... */ + memcpy(commandp, (char *) 0xf0004000, size); + commandp[size-1] = 0; +#endif + + mach_reset = m5307_cpu_reset; + m5307_timers_init(); + m5307_uarts_init(); + + /* Only support the external interrupts on their primary level */ + mcf_mapirq2imr(25, MCFINTC_EINT1); + mcf_mapirq2imr(27, MCFINTC_EINT3); + mcf_mapirq2imr(29, MCFINTC_EINT5); + mcf_mapirq2imr(31, MCFINTC_EINT7); + +#ifdef CONFIG_BDM_DISABLE + /* + * Disable the BDM clocking. This also turns off most of the rest of + * the BDM device. This is good for EMC reasons. This option is not + * incompatible with the memory protection option. + */ + wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); +#endif +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + platform_add_devices(m5307_devices, ARRAY_SIZE(m5307_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/5307/gpio.c b/arch/m68k/platform/5307/gpio.c new file mode 100644 index 000000000000..5850612b4a38 --- /dev/null +++ b/arch/m68k/platform/5307/gpio.c @@ -0,0 +1,49 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "PP", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .ngpio = 16, + }, + .pddr = (void __iomem *) MCFSIM_PADDR, + .podr = (void __iomem *) MCFSIM_PADAT, + .ppdr = (void __iomem *) MCFSIM_PADAT, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/5307/nettel.c b/arch/m68k/platform/5307/nettel.c new file mode 100644 index 000000000000..e925ea4602f8 --- /dev/null +++ b/arch/m68k/platform/5307/nettel.c @@ -0,0 +1,153 @@ +/***************************************************************************/ + +/* + * nettel.c -- startup code support for the NETtel boards + * + * Copyright (C) 2009, Greg Ungerer (gerg@snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/platform_device.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/nettel.h> + +/***************************************************************************/ + +/* + * Define the IO and interrupt resources of the 2 SMC9196 interfaces. + */ +#define NETTEL_SMC0_ADDR 0x30600300 +#define NETTEL_SMC0_IRQ 29 + +#define NETTEL_SMC1_ADDR 0x30600000 +#define NETTEL_SMC1_IRQ 27 + +/* + * We need some access into the SMC9196 registers. Define those registers + * we will need here (including the smc91x.h doesn't seem to give us these + * in a simple form). + */ +#define SMC91xx_BANKSELECT 14 +#define SMC91xx_BASEADDR 2 +#define SMC91xx_BASEMAC 4 + +/***************************************************************************/ + +static struct resource nettel_smc91x_0_resources[] = { + { + .start = NETTEL_SMC0_ADDR, + .end = NETTEL_SMC0_ADDR + 0x20, + .flags = IORESOURCE_MEM, + }, + { + .start = NETTEL_SMC0_IRQ, + .end = NETTEL_SMC0_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource nettel_smc91x_1_resources[] = { + { + .start = NETTEL_SMC1_ADDR, + .end = NETTEL_SMC1_ADDR + 0x20, + .flags = IORESOURCE_MEM, + }, + { + .start = NETTEL_SMC1_IRQ, + .end = NETTEL_SMC1_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device nettel_smc91x[] = { + { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(nettel_smc91x_0_resources), + .resource = nettel_smc91x_0_resources, + }, + { + .name = "smc91x", + .id = 1, + .num_resources = ARRAY_SIZE(nettel_smc91x_1_resources), + .resource = nettel_smc91x_1_resources, + }, +}; + +static struct platform_device *nettel_devices[] __initdata = { + &nettel_smc91x[0], + &nettel_smc91x[1], +}; + +/***************************************************************************/ + +static u8 nettel_macdefault[] __initdata = { + 0x00, 0xd0, 0xcf, 0x00, 0x00, 0x01, +}; + +/* + * Set flash contained MAC address into SMC9196 core. Make sure the flash + * MAC address is sane, and not an empty flash. If no good use the Moreton + * Bay default MAC address instead. + */ + +static void __init nettel_smc91x_setmac(unsigned int ioaddr, unsigned int flashaddr) +{ + u16 *macp; + + macp = (u16 *) flashaddr; + if ((macp[0] == 0xffff) && (macp[1] == 0xffff) && (macp[2] == 0xffff)) + macp = (u16 *) &nettel_macdefault[0]; + + writew(1, NETTEL_SMC0_ADDR + SMC91xx_BANKSELECT); + writew(macp[0], ioaddr + SMC91xx_BASEMAC); + writew(macp[1], ioaddr + SMC91xx_BASEMAC + 2); + writew(macp[2], ioaddr + SMC91xx_BASEMAC + 4); +} + +/***************************************************************************/ + +/* + * Re-map the address space of at least one of the SMC ethernet + * parts. Both parts power up decoding the same address, so we + * need to move one of them first, before doing anything else. + */ + +static void __init nettel_smc91x_init(void) +{ + writew(0x00ec, MCF_MBAR + MCFSIM_PADDR); + mcf_setppdata(0, 0x0080); + writew(1, NETTEL_SMC0_ADDR + SMC91xx_BANKSELECT); + writew(0x0067, NETTEL_SMC0_ADDR + SMC91xx_BASEADDR); + mcf_setppdata(0x0080, 0); + + /* Set correct chip select timing for SMC9196 accesses */ + writew(0x1180, MCF_MBAR + MCFSIM_CSCR3); + + /* Set the SMC interrupts to be auto-vectored */ + mcf_autovector(NETTEL_SMC0_IRQ); + mcf_autovector(NETTEL_SMC1_IRQ); + + /* Set MAC addresses from flash for both interfaces */ + nettel_smc91x_setmac(NETTEL_SMC0_ADDR, 0xf0006000); + nettel_smc91x_setmac(NETTEL_SMC1_ADDR, 0xf0006006); +} + +/***************************************************************************/ + +static int __init init_nettel(void) +{ + nettel_smc91x_init(); + platform_add_devices(nettel_devices, ARRAY_SIZE(nettel_devices)); + return 0; +} + +arch_initcall(init_nettel); + +/***************************************************************************/ diff --git a/arch/m68k/platform/532x/Makefile b/arch/m68k/platform/532x/Makefile new file mode 100644 index 000000000000..ce01669399c6 --- /dev/null +++ b/arch/m68k/platform/532x/Makefile @@ -0,0 +1,18 @@ +# +# Makefile for the m68knommu linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +#obj-y := config.o usb-mcf532x.o spi-mcf532x.o +obj-y := config.o gpio.o diff --git a/arch/m68k/platform/532x/config.c b/arch/m68k/platform/532x/config.c new file mode 100644 index 000000000000..ca51323f957b --- /dev/null +++ b/arch/m68k/platform/532x/config.c @@ -0,0 +1,648 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/532x/config.c + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2000, Lineo (www.lineo.com) + * Yaroslav Vinogradov yaroslav.vinogradov@freescale.com + * Copyright Freescale Semiconductor, Inc 2006 + * Copyright (c) 2006, emlix, Sebastian Hess <sh@emlix.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/spi/spi.h> +#include <linux/gpio.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfdma.h> +#include <asm/mcfwdebug.h> +#include <asm/mcfqspi.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m532x_uart_platform[] = { + { + .mapbase = MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART1, + }, + { + .mapbase = MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART2, + }, + { }, +}; + +static struct platform_device m532x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m532x_uart_platform, +}; + +static struct resource m532x_fec_resources[] = { + { + .start = 0xfc030000, + .end = 0xfc0307ff, + .flags = IORESOURCE_MEM, + }, + { + .start = 64 + 36, + .end = 64 + 36, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 40, + .end = 64 + 40, + .flags = IORESOURCE_IRQ, + }, + { + .start = 64 + 42, + .end = 64 + 42, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m532x_fec = { + .name = "fec", + .id = 0, + .num_resources = ARRAY_SIZE(m532x_fec_resources), + .resource = m532x_fec_resources, +}; + +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) +static struct resource m532x_qspi_resources[] = { + { + .start = MCFQSPI_IOBASE, + .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = MCFINT_VECBASE + MCFINT_QSPI, + .end = MCFINT_VECBASE + MCFINT_QSPI, + .flags = IORESOURCE_IRQ, + }, +}; + +#define MCFQSPI_CS0 84 +#define MCFQSPI_CS1 85 +#define MCFQSPI_CS2 86 + +static int m532x_cs_setup(struct mcfqspi_cs_control *cs_control) +{ + int status; + + status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); + goto fail0; + } + status = gpio_direction_output(MCFQSPI_CS0, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); + goto fail1; + } + + status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); + goto fail1; + } + status = gpio_direction_output(MCFQSPI_CS1, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); + goto fail2; + } + + status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); + if (status) { + pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); + goto fail2; + } + status = gpio_direction_output(MCFQSPI_CS2, 1); + if (status) { + pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); + goto fail3; + } + + return 0; + +fail3: + gpio_free(MCFQSPI_CS2); +fail2: + gpio_free(MCFQSPI_CS1); +fail1: + gpio_free(MCFQSPI_CS0); +fail0: + return status; +} + +static void m532x_cs_teardown(struct mcfqspi_cs_control *cs_control) +{ + gpio_free(MCFQSPI_CS2); + gpio_free(MCFQSPI_CS1); + gpio_free(MCFQSPI_CS0); +} + +static void m532x_cs_select(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + gpio_set_value(MCFQSPI_CS0 + chip_select, cs_high); +} + +static void m532x_cs_deselect(struct mcfqspi_cs_control *cs_control, + u8 chip_select, bool cs_high) +{ + gpio_set_value(MCFQSPI_CS0 + chip_select, !cs_high); +} + +static struct mcfqspi_cs_control m532x_cs_control = { + .setup = m532x_cs_setup, + .teardown = m532x_cs_teardown, + .select = m532x_cs_select, + .deselect = m532x_cs_deselect, +}; + +static struct mcfqspi_platform_data m532x_qspi_data = { + .bus_num = 0, + .num_chipselect = 3, + .cs_control = &m532x_cs_control, +}; + +static struct platform_device m532x_qspi = { + .name = "mcfqspi", + .id = 0, + .num_resources = ARRAY_SIZE(m532x_qspi_resources), + .resource = m532x_qspi_resources, + .dev.platform_data = &m532x_qspi_data, +}; + +static void __init m532x_qspi_init(void) +{ + /* setup QSPS pins for QSPI with gpio CS control */ + writew(0x01f0, MCF_GPIO_PAR_QSPI); +} +#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ + + +static struct platform_device *m532x_devices[] __initdata = { + &m532x_uart, + &m532x_fec, +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + &m532x_qspi, +#endif +}; + +/***************************************************************************/ + +static void __init m532x_uart_init_line(int line, int irq) +{ + if (line == 0) { + /* GPIO initialization */ + MCF_GPIO_PAR_UART |= 0x000F; + } else if (line == 1) { + /* GPIO initialization */ + MCF_GPIO_PAR_UART |= 0x0FF0; + } +} + +static void __init m532x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m532x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m532x_uart_init_line(line, m532x_uart_platform[line].irq); +} +/***************************************************************************/ + +static void __init m532x_fec_init(void) +{ + /* Set multi-function pins to ethernet mode for fec0 */ + MCF_GPIO_PAR_FECI2C |= (MCF_GPIO_PAR_FECI2C_PAR_MDC_EMDC | + MCF_GPIO_PAR_FECI2C_PAR_MDIO_EMDIO); + MCF_GPIO_PAR_FEC = (MCF_GPIO_PAR_FEC_PAR_FEC_7W_FEC | + MCF_GPIO_PAR_FEC_PAR_FEC_MII_FEC); +} + +/***************************************************************************/ + +static void m532x_cpu_reset(void) +{ + local_irq_disable(); + __raw_writeb(MCF_RCR_SWRESET, MCF_RCR); +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ +#if !defined(CONFIG_BOOTPARAM) + /* Copy command line from FLASH to local buffer... */ + memcpy(commandp, (char *) 0x4000, 4); + if(strncmp(commandp, "kcl ", 4) == 0){ + memcpy(commandp, (char *) 0x4004, size); + commandp[size-1] = 0; + } else { + memset(commandp, 0, size); + } +#endif + +#ifdef CONFIG_BDM_DISABLE + /* + * Disable the BDM clocking. This also turns off most of the rest of + * the BDM device. This is good for EMC reasons. This option is not + * incompatible with the memory protection option. + */ + wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); +#endif +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + m532x_uarts_init(); + m532x_fec_init(); +#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) + m532x_qspi_init(); +#endif + platform_add_devices(m532x_devices, ARRAY_SIZE(m532x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ +/* Board initialization */ +/***************************************************************************/ +/* + * PLL min/max specifications + */ +#define MAX_FVCO 500000 /* KHz */ +#define MAX_FSYS 80000 /* KHz */ +#define MIN_FSYS 58333 /* KHz */ +#define FREF 16000 /* KHz */ + + +#define MAX_MFD 135 /* Multiplier */ +#define MIN_MFD 88 /* Multiplier */ +#define BUSDIV 6 /* Divider */ + +/* + * Low Power Divider specifications + */ +#define MIN_LPD (1 << 0) /* Divider (not encoded) */ +#define MAX_LPD (1 << 15) /* Divider (not encoded) */ +#define DEFAULT_LPD (1 << 1) /* Divider (not encoded) */ + +#define SYS_CLK_KHZ 80000 +#define SYSTEM_PERIOD 12.5 +/* + * SDRAM Timing Parameters + */ +#define SDRAM_BL 8 /* # of beats in a burst */ +#define SDRAM_TWR 2 /* in clocks */ +#define SDRAM_CASL 2.5 /* CASL in clocks */ +#define SDRAM_TRCD 2 /* in clocks */ +#define SDRAM_TRP 2 /* in clocks */ +#define SDRAM_TRFC 7 /* in clocks */ +#define SDRAM_TREFI 7800 /* in ns */ + +#define EXT_SRAM_ADDRESS (0xC0000000) +#define FLASH_ADDRESS (0x00000000) +#define SDRAM_ADDRESS (0x40000000) + +#define NAND_FLASH_ADDRESS (0xD0000000) + +int sys_clk_khz = 0; +int sys_clk_mhz = 0; + +void wtm_init(void); +void scm_init(void); +void gpio_init(void); +void fbcs_init(void); +void sdramc_init(void); +int clock_pll (int fsys, int flags); +int clock_limp (int); +int clock_exit_limp (void); +int get_sys_clock (void); + +asmlinkage void __init sysinit(void) +{ + sys_clk_khz = clock_pll(0, 0); + sys_clk_mhz = sys_clk_khz/1000; + + wtm_init(); + scm_init(); + gpio_init(); + fbcs_init(); + sdramc_init(); +} + +void wtm_init(void) +{ + /* Disable watchdog timer */ + MCF_WTM_WCR = 0; +} + +#define MCF_SCM_BCR_GBW (0x00000100) +#define MCF_SCM_BCR_GBR (0x00000200) + +void scm_init(void) +{ + /* All masters are trusted */ + MCF_SCM_MPR = 0x77777777; + + /* Allow supervisor/user, read/write, and trusted/untrusted + access to all slaves */ + MCF_SCM_PACRA = 0; + MCF_SCM_PACRB = 0; + MCF_SCM_PACRC = 0; + MCF_SCM_PACRD = 0; + MCF_SCM_PACRE = 0; + MCF_SCM_PACRF = 0; + + /* Enable bursts */ + MCF_SCM_BCR = (MCF_SCM_BCR_GBR | MCF_SCM_BCR_GBW); +} + + +void fbcs_init(void) +{ + MCF_GPIO_PAR_CS = 0x0000003E; + + /* Latch chip select */ + MCF_FBCS1_CSAR = 0x10080000; + + MCF_FBCS1_CSCR = 0x002A3780; + MCF_FBCS1_CSMR = (MCF_FBCS_CSMR_BAM_2M | MCF_FBCS_CSMR_V); + + /* Initialize latch to drive signals to inactive states */ + *((u16 *)(0x10080000)) = 0xFFFF; + + /* External SRAM */ + MCF_FBCS1_CSAR = EXT_SRAM_ADDRESS; + MCF_FBCS1_CSCR = (MCF_FBCS_CSCR_PS_16 + | MCF_FBCS_CSCR_AA + | MCF_FBCS_CSCR_SBM + | MCF_FBCS_CSCR_WS(1)); + MCF_FBCS1_CSMR = (MCF_FBCS_CSMR_BAM_512K + | MCF_FBCS_CSMR_V); + + /* Boot Flash connected to FBCS0 */ + MCF_FBCS0_CSAR = FLASH_ADDRESS; + MCF_FBCS0_CSCR = (MCF_FBCS_CSCR_PS_16 + | MCF_FBCS_CSCR_BEM + | MCF_FBCS_CSCR_AA + | MCF_FBCS_CSCR_SBM + | MCF_FBCS_CSCR_WS(7)); + MCF_FBCS0_CSMR = (MCF_FBCS_CSMR_BAM_32M + | MCF_FBCS_CSMR_V); +} + +void sdramc_init(void) +{ + /* + * Check to see if the SDRAM has already been initialized + * by a run control tool + */ + if (!(MCF_SDRAMC_SDCR & MCF_SDRAMC_SDCR_REF)) { + /* SDRAM chip select initialization */ + + /* Initialize SDRAM chip select */ + MCF_SDRAMC_SDCS0 = (0 + | MCF_SDRAMC_SDCS_BA(SDRAM_ADDRESS) + | MCF_SDRAMC_SDCS_CSSZ(MCF_SDRAMC_SDCS_CSSZ_32MBYTE)); + + /* + * Basic configuration and initialization + */ + MCF_SDRAMC_SDCFG1 = (0 + | MCF_SDRAMC_SDCFG1_SRD2RW((int)((SDRAM_CASL + 2) + 0.5 )) + | MCF_SDRAMC_SDCFG1_SWT2RD(SDRAM_TWR + 1) + | MCF_SDRAMC_SDCFG1_RDLAT((int)((SDRAM_CASL*2) + 2)) + | MCF_SDRAMC_SDCFG1_ACT2RW((int)((SDRAM_TRCD ) + 0.5)) + | MCF_SDRAMC_SDCFG1_PRE2ACT((int)((SDRAM_TRP ) + 0.5)) + | MCF_SDRAMC_SDCFG1_REF2ACT((int)(((SDRAM_TRFC) ) + 0.5)) + | MCF_SDRAMC_SDCFG1_WTLAT(3)); + MCF_SDRAMC_SDCFG2 = (0 + | MCF_SDRAMC_SDCFG2_BRD2PRE(SDRAM_BL/2 + 1) + | MCF_SDRAMC_SDCFG2_BWT2RW(SDRAM_BL/2 + SDRAM_TWR) + | MCF_SDRAMC_SDCFG2_BRD2WT((int)((SDRAM_CASL+SDRAM_BL/2-1.0)+0.5)) + | MCF_SDRAMC_SDCFG2_BL(SDRAM_BL-1)); + + + /* + * Precharge and enable write to SDMR + */ + MCF_SDRAMC_SDCR = (0 + | MCF_SDRAMC_SDCR_MODE_EN + | MCF_SDRAMC_SDCR_CKE + | MCF_SDRAMC_SDCR_DDR + | MCF_SDRAMC_SDCR_MUX(1) + | MCF_SDRAMC_SDCR_RCNT((int)(((SDRAM_TREFI/(SYSTEM_PERIOD*64)) - 1) + 0.5)) + | MCF_SDRAMC_SDCR_PS_16 + | MCF_SDRAMC_SDCR_IPALL); + + /* + * Write extended mode register + */ + MCF_SDRAMC_SDMR = (0 + | MCF_SDRAMC_SDMR_BNKAD_LEMR + | MCF_SDRAMC_SDMR_AD(0x0) + | MCF_SDRAMC_SDMR_CMD); + + /* + * Write mode register and reset DLL + */ + MCF_SDRAMC_SDMR = (0 + | MCF_SDRAMC_SDMR_BNKAD_LMR + | MCF_SDRAMC_SDMR_AD(0x163) + | MCF_SDRAMC_SDMR_CMD); + + /* + * Execute a PALL command + */ + MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_IPALL; + + /* + * Perform two REF cycles + */ + MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_IREF; + MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_IREF; + + /* + * Write mode register and clear reset DLL + */ + MCF_SDRAMC_SDMR = (0 + | MCF_SDRAMC_SDMR_BNKAD_LMR + | MCF_SDRAMC_SDMR_AD(0x063) + | MCF_SDRAMC_SDMR_CMD); + + /* + * Enable auto refresh and lock SDMR + */ + MCF_SDRAMC_SDCR &= ~MCF_SDRAMC_SDCR_MODE_EN; + MCF_SDRAMC_SDCR |= (0 + | MCF_SDRAMC_SDCR_REF + | MCF_SDRAMC_SDCR_DQS_OE(0xC)); + } +} + +void gpio_init(void) +{ + /* Enable UART0 pins */ + MCF_GPIO_PAR_UART = ( 0 + | MCF_GPIO_PAR_UART_PAR_URXD0 + | MCF_GPIO_PAR_UART_PAR_UTXD0); + + /* Initialize TIN3 as a GPIO output to enable the write + half of the latch */ + MCF_GPIO_PAR_TIMER = 0x00; + __raw_writeb(0x08, MCFGPIO_PDDR_TIMER); + __raw_writeb(0x00, MCFGPIO_PCLRR_TIMER); + +} + +int clock_pll(int fsys, int flags) +{ + int fref, temp, fout, mfd; + u32 i; + + fref = FREF; + + if (fsys == 0) { + /* Return current PLL output */ + mfd = MCF_PLL_PFDR; + + return (fref * mfd / (BUSDIV * 4)); + } + + /* Check bounds of requested system clock */ + if (fsys > MAX_FSYS) + fsys = MAX_FSYS; + if (fsys < MIN_FSYS) + fsys = MIN_FSYS; + + /* Multiplying by 100 when calculating the temp value, + and then dividing by 100 to calculate the mfd allows + for exact values without needing to include floating + point libraries. */ + temp = 100 * fsys / fref; + mfd = 4 * BUSDIV * temp / 100; + + /* Determine the output frequency for selected values */ + fout = (fref * mfd / (BUSDIV * 4)); + + /* + * Check to see if the SDRAM has already been initialized. + * If it has then the SDRAM needs to be put into self refresh + * mode before reprogramming the PLL. + */ + if (MCF_SDRAMC_SDCR & MCF_SDRAMC_SDCR_REF) + /* Put SDRAM into self refresh mode */ + MCF_SDRAMC_SDCR &= ~MCF_SDRAMC_SDCR_CKE; + + /* + * Initialize the PLL to generate the new system clock frequency. + * The device must be put into LIMP mode to reprogram the PLL. + */ + + /* Enter LIMP mode */ + clock_limp(DEFAULT_LPD); + + /* Reprogram PLL for desired fsys */ + MCF_PLL_PODR = (0 + | MCF_PLL_PODR_CPUDIV(BUSDIV/3) + | MCF_PLL_PODR_BUSDIV(BUSDIV)); + + MCF_PLL_PFDR = mfd; + + /* Exit LIMP mode */ + clock_exit_limp(); + + /* + * Return the SDRAM to normal operation if it is in use. + */ + if (MCF_SDRAMC_SDCR & MCF_SDRAMC_SDCR_REF) + /* Exit self refresh mode */ + MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_CKE; + + /* Errata - workaround for SDRAM opeartion after exiting LIMP mode */ + MCF_SDRAMC_LIMP_FIX = MCF_SDRAMC_REFRESH; + + /* wait for DQS logic to relock */ + for (i = 0; i < 0x200; i++) + ; + + return fout; +} + +int clock_limp(int div) +{ + u32 temp; + + /* Check bounds of divider */ + if (div < MIN_LPD) + div = MIN_LPD; + if (div > MAX_LPD) + div = MAX_LPD; + + /* Save of the current value of the SSIDIV so we don't + overwrite the value*/ + temp = (MCF_CCM_CDR & MCF_CCM_CDR_SSIDIV(0xF)); + + /* Apply the divider to the system clock */ + MCF_CCM_CDR = ( 0 + | MCF_CCM_CDR_LPDIV(div) + | MCF_CCM_CDR_SSIDIV(temp)); + + MCF_CCM_MISCCR |= MCF_CCM_MISCCR_LIMP; + + return (FREF/(3*(1 << div))); +} + +int clock_exit_limp(void) +{ + int fout; + + /* Exit LIMP mode */ + MCF_CCM_MISCCR = (MCF_CCM_MISCCR & ~ MCF_CCM_MISCCR_LIMP); + + /* Wait for PLL to lock */ + while (!(MCF_CCM_MISCCR & MCF_CCM_MISCCR_PLL_LOCK)) + ; + + fout = get_sys_clock(); + + return fout; +} + +int get_sys_clock(void) +{ + int divider; + + /* Test to see if device is in LIMP mode */ + if (MCF_CCM_MISCCR & MCF_CCM_MISCCR_LIMP) { + divider = MCF_CCM_CDR & MCF_CCM_CDR_LPDIV(0xF); + return (FREF/(2 << divider)); + } + else + return ((FREF * MCF_PLL_PFDR) / (BUSDIV * 4)); +} diff --git a/arch/m68k/platform/532x/gpio.c b/arch/m68k/platform/532x/gpio.c new file mode 100644 index 000000000000..212a85deac90 --- /dev/null +++ b/arch/m68k/platform/532x/gpio.c @@ -0,0 +1,337 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "PIRQ", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFEPORT_EPDDR, + .podr = (void __iomem *) MCFEPORT_EPDR, + .ppdr = (void __iomem *) MCFEPORT_EPPDR, + }, + { + .gpio_chip = { + .label = "FECH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 8, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECH, + .podr = (void __iomem *) MCFGPIO_PODR_FECH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECH, + }, + { + .gpio_chip = { + .label = "FECL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 16, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECL, + .podr = (void __iomem *) MCFGPIO_PODR_FECL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECL, + }, + { + .gpio_chip = { + .label = "SSI", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 24, + .ngpio = 5, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_SSI, + .podr = (void __iomem *) MCFGPIO_PODR_SSI, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SSI, + .setr = (void __iomem *) MCFGPIO_PPDSDR_SSI, + .clrr = (void __iomem *) MCFGPIO_PCLRR_SSI, + }, + { + .gpio_chip = { + .label = "BUSCTL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 32, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, + .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, + }, + { + .gpio_chip = { + .label = "BE", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 40, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_BE, + .podr = (void __iomem *) MCFGPIO_PODR_BE, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BE, + .setr = (void __iomem *) MCFGPIO_PPDSDR_BE, + .clrr = (void __iomem *) MCFGPIO_PCLRR_BE, + }, + { + .gpio_chip = { + .label = "CS", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 49, + .ngpio = 5, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_CS, + .podr = (void __iomem *) MCFGPIO_PODR_CS, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, + .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, + }, + { + .gpio_chip = { + .label = "PWM", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 58, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_PWM, + .podr = (void __iomem *) MCFGPIO_PODR_PWM, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_PWM, + .setr = (void __iomem *) MCFGPIO_PPDSDR_PWM, + .clrr = (void __iomem *) MCFGPIO_PCLRR_PWM, + }, + { + .gpio_chip = { + .label = "FECI2C", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 64, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, + .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, + .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, + }, + { + .gpio_chip = { + .label = "UART", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 72, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_UART, + .podr = (void __iomem *) MCFGPIO_PODR_UART, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UART, + .setr = (void __iomem *) MCFGPIO_PPDSDR_UART, + .clrr = (void __iomem *) MCFGPIO_PCLRR_UART, + }, + { + .gpio_chip = { + .label = "QSPI", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 80, + .ngpio = 6, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, + .podr = (void __iomem *) MCFGPIO_PODR_QSPI, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, + .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, + }, + { + .gpio_chip = { + .label = "TIMER", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 88, + .ngpio = 4, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER, + .podr = (void __iomem *) MCFGPIO_PODR_TIMER, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, + .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER, + }, + { + .gpio_chip = { + .label = "LCDDATAH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 96, + .ngpio = 2, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_LCDDATAH, + .podr = (void __iomem *) MCFGPIO_PODR_LCDDATAH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDDATAH, + }, + { + .gpio_chip = { + .label = "LCDDATAM", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 104, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_LCDDATAM, + .podr = (void __iomem *) MCFGPIO_PODR_LCDDATAM, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAM, + .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAM, + .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDDATAM, + }, + { + .gpio_chip = { + .label = "LCDDATAL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 112, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_LCDDATAL, + .podr = (void __iomem *) MCFGPIO_PODR_LCDDATAL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDDATAL, + }, + { + .gpio_chip = { + .label = "LCDCTLH", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 120, + .ngpio = 1, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_LCDCTLH, + .podr = (void __iomem *) MCFGPIO_PODR_LCDCTLH, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDCTLH, + .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDCTLH, + .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDCTLH, + }, + { + .gpio_chip = { + .label = "LCDCTLL", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value_fast, + .base = 128, + .ngpio = 8, + }, + .pddr = (void __iomem *) MCFGPIO_PDDR_LCDCTLL, + .podr = (void __iomem *) MCFGPIO_PODR_LCDCTLL, + .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDCTLL, + .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDCTLL, + .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDCTLL, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/5407/Makefile b/arch/m68k/platform/5407/Makefile new file mode 100644 index 000000000000..e83fe148eddc --- /dev/null +++ b/arch/m68k/platform/5407/Makefile @@ -0,0 +1,18 @@ +# +# Makefile for the m68knommu linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o gpio.o + diff --git a/arch/m68k/platform/5407/config.c b/arch/m68k/platform/5407/config.c new file mode 100644 index 000000000000..70ea789a400c --- /dev/null +++ b/arch/m68k/platform/5407/config.c @@ -0,0 +1,122 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/5407/config.c + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2000, Lineo (www.lineo.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m5407_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 73, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 74, + }, + { }, +}; + +static struct platform_device m5407_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m5407_uart_platform, +}; + +static struct platform_device *m5407_devices[] __initdata = { + &m5407_uart, +}; + +/***************************************************************************/ + +static void __init m5407_uart_init_line(int line, int irq) +{ + if (line == 0) { + writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); + writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART0); + } else if (line == 1) { + writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); + writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR); + mcf_mapirq2imr(irq, MCFINTC_UART1); + } +} + +static void __init m5407_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m5407_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m5407_uart_init_line(line, m5407_uart_platform[line].irq); +} + +/***************************************************************************/ + +static void __init m5407_timers_init(void) +{ + /* Timer1 is always used as system timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER1ICR); + mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); + +#ifdef CONFIG_HIGHPROFILE + /* Timer2 is to be used as a high speed profile timer */ + writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, + MCF_MBAR + MCFSIM_TIMER2ICR); + mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); +#endif +} + +/***************************************************************************/ + +void m5407_cpu_reset(void) +{ + local_irq_disable(); + /* set watchdog to soft reset, and enabled */ + __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); + for (;;) + /* wait for watchdog to timeout */; +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_reset = m5407_cpu_reset; + m5407_timers_init(); + m5407_uarts_init(); + + /* Only support the external interrupts on their primary level */ + mcf_mapirq2imr(25, MCFINTC_EINT1); + mcf_mapirq2imr(27, MCFINTC_EINT3); + mcf_mapirq2imr(29, MCFINTC_EINT5); + mcf_mapirq2imr(31, MCFINTC_EINT7); +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + platform_add_devices(m5407_devices, ARRAY_SIZE(m5407_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/5407/gpio.c b/arch/m68k/platform/5407/gpio.c new file mode 100644 index 000000000000..5850612b4a38 --- /dev/null +++ b/arch/m68k/platform/5407/gpio.c @@ -0,0 +1,49 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "PP", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .ngpio = 16, + }, + .pddr = (void __iomem *) MCFSIM_PADDR, + .podr = (void __iomem *) MCFSIM_PADAT, + .ppdr = (void __iomem *) MCFSIM_PADAT, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); diff --git a/arch/m68k/platform/54xx/Makefile b/arch/m68k/platform/54xx/Makefile new file mode 100644 index 000000000000..6cfd090ec3cd --- /dev/null +++ b/arch/m68k/platform/54xx/Makefile @@ -0,0 +1,19 @@ +# +# Makefile for the m68knommu linux kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# EXTRA_CFLAGS += -DTRAP_DBG_INTERRUPT +# EXTRA_AFLAGS += -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-y := config.o +obj-$(CONFIG_FIREBEE) += firebee.o + diff --git a/arch/m68k/platform/54xx/config.c b/arch/m68k/platform/54xx/config.c new file mode 100644 index 000000000000..78130984db95 --- /dev/null +++ b/arch/m68k/platform/54xx/config.c @@ -0,0 +1,115 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/54xx/config.c + * + * Copyright (C) 2010, Philippe De Muyter <phdm@macqel.be> + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/m54xxsim.h> +#include <asm/mcfuart.h> +#include <asm/m54xxgpt.h> + +/***************************************************************************/ + +static struct mcf_platform_uart m54xx_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = 64 + 35, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = 64 + 34, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE3, + .irq = 64 + 33, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE4, + .irq = 64 + 32, + }, +}; + +static struct platform_device m54xx_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m54xx_uart_platform, +}; + +static struct platform_device *m54xx_devices[] __initdata = { + &m54xx_uart, +}; + + +/***************************************************************************/ + +static void __init m54xx_uart_init_line(int line, int irq) +{ + int rts_cts; + + /* enable io pins */ + switch (line) { + case 0: + rts_cts = 0; break; + case 1: + rts_cts = MCF_PAR_PSC_RTS_RTS; break; + case 2: + rts_cts = MCF_PAR_PSC_RTS_RTS | MCF_PAR_PSC_CTS_CTS; break; + case 3: + rts_cts = 0; break; + } + __raw_writeb(MCF_PAR_PSC_TXD | rts_cts | MCF_PAR_PSC_RXD, + MCF_MBAR + MCF_PAR_PSC(line)); +} + +static void __init m54xx_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m54xx_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m54xx_uart_init_line(line, m54xx_uart_platform[line].irq); +} + +/***************************************************************************/ + +static void mcf54xx_reset(void) +{ + /* disable interrupts and enable the watchdog */ + asm("movew #0x2700, %sr\n"); + __raw_writel(0, MCF_MBAR + MCF_GPT_GMS0); + __raw_writel(MCF_GPT_GCIR_CNT(1), MCF_MBAR + MCF_GPT_GCIR0); + __raw_writel(MCF_GPT_GMS_WDEN | MCF_GPT_GMS_CE | MCF_GPT_GMS_TMS(4), + MCF_MBAR + MCF_GPT_GMS0); +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_reset = mcf54xx_reset; + m54xx_uarts_init(); +} + +/***************************************************************************/ + +static int __init init_BSP(void) +{ + + platform_add_devices(m54xx_devices, ARRAY_SIZE(m54xx_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ diff --git a/arch/m68k/platform/54xx/firebee.c b/arch/m68k/platform/54xx/firebee.c new file mode 100644 index 000000000000..46d50534f981 --- /dev/null +++ b/arch/m68k/platform/54xx/firebee.c @@ -0,0 +1,86 @@ +/***************************************************************************/ + +/* + * firebee.c -- extra startup code support for the FireBee boards + * + * Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> + +/***************************************************************************/ + +/* + * 8MB of NOR flash fitted to the FireBee board. + */ +#define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */ +#define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */ + +#define PART_BOOT_START 0x00000000 /* Start at bottom of flash */ +#define PART_BOOT_SIZE 0x00040000 /* 256k in size */ +#define PART_IMAGE_START 0x00040000 /* Start after boot loader */ +#define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */ +#define PART_FPGA_START 0x00700000 /* Start at offset 7MB */ +#define PART_FPGA_SIZE 0x00100000 /* 1MB in size */ + +static struct mtd_partition firebee_flash_parts[] = { + { + .name = "dBUG", + .offset = PART_BOOT_START, + .size = PART_BOOT_SIZE, + }, + { + .name = "FPGA", + .offset = PART_FPGA_START, + .size = PART_FPGA_SIZE, + }, + { + .name = "image", + .offset = PART_IMAGE_START, + .size = PART_IMAGE_SIZE, + }, +}; + +static struct physmap_flash_data firebee_flash_data = { + .width = 2, + .nr_parts = ARRAY_SIZE(firebee_flash_parts), + .parts = firebee_flash_parts, +}; + +static struct resource firebee_flash_resource = { + .start = FLASH_PHYS_ADDR, + .end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device firebee_flash = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &firebee_flash_data, + }, + .num_resources = 1, + .resource = &firebee_flash_resource, +}; + +/***************************************************************************/ + +static int __init init_firebee(void) +{ + platform_device_register(&firebee_flash); + return 0; +} + +arch_initcall(init_firebee); + +/***************************************************************************/ diff --git a/arch/m68k/platform/68328/Makefile b/arch/m68k/platform/68328/Makefile new file mode 100644 index 000000000000..5e5435552d56 --- /dev/null +++ b/arch/m68k/platform/68328/Makefile @@ -0,0 +1,22 @@ +# +# Makefile for arch/m68knommu/platform/68328. +# + +head-y = head-$(MODEL).o +head-$(CONFIG_PILOT) = head-pilot.o +head-$(CONFIG_DRAGEN2) = head-de2.o + +obj-y += entry.o ints.o timers.o +obj-$(CONFIG_M68328) += config.o +obj-$(CONFIG_ROM) += romvec.o + +extra-y := head.o +extra-$(CONFIG_M68328) += bootlogo.rh head.o + +$(obj)/bootlogo.rh: $(src)/bootlogo.h + perl $(src)/bootlogo.pl < $(src)/bootlogo.h > $(obj)/bootlogo.rh + +$(obj)/head.o: $(obj)/$(head-y) + ln -sf $(head-y) $(obj)/head.o + +clean-files := $(obj)/bootlogo.rh $(obj)/head.o $(head-y) diff --git a/arch/m68k/platform/68328/bootlogo.h b/arch/m68k/platform/68328/bootlogo.h new file mode 100644 index 000000000000..67bc2c17386e --- /dev/null +++ b/arch/m68k/platform/68328/bootlogo.h @@ -0,0 +1,270 @@ +#define bootlogo_width 160 +#define bootlogo_height 160 +static unsigned char bootlogo_bits[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x01, 0x00, 0x00, 0x00, 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0x24, 0x49, 0x12, 0x92, 0x40, 0x92, + 0x24, 0x06, 0x49, 0x48, 0x50, 0x0a, 0x02, 0xfe, 0xff, 0x3f, 0x00, 0x05, + 0x00, 0x50, 0xa5, 0x4a, 0x15, 0x92, 0x40, 0x92, 0x24, 0x06, 0x49, 0x48, + 0x80, 0x40, 0x48, 0xfe, 0xff, 0x3f, 0x49, 0x00, 0x00, 0x20, 0x42, 0x84, + 0x88, 0x1a, 0x41, 0x92, 0x34, 0x49, 0x49, 0x68, 0x00, 0x38, 0x10, 0x07, + 0x00, 0x60, 0x80, 0x00, 0x00, 0x20, 0x42, 0x84, 0x88, 0x14, 0x4e, 0x92, + 0x28, 0x49, 0x46, 0x50, 0x00, 0x80, 0x83, 0x01, 0x00, 0xa0, 0x6a, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, + 0x00, 0x00, 0xfc, 0x00, 0x00, 0xc0, 0x3b, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, }; diff --git a/arch/m68k/platform/68328/bootlogo.pl b/arch/m68k/platform/68328/bootlogo.pl new file mode 100644 index 000000000000..b04ae3f50da5 --- /dev/null +++ b/arch/m68k/platform/68328/bootlogo.pl @@ -0,0 +1,10 @@ + +$_ = join("", <>); + +s/(0x[0-9a-f]{2})/sprintf("0x%.2x",ord(pack("b8",unpack("B8",chr(hex($1))))))/gei; + +s/^ / .byte /gm; +s/[,};]+$//gm; +s/^static.*//gm; + +print $_; diff --git a/arch/m68k/platform/68328/config.c b/arch/m68k/platform/68328/config.c new file mode 100644 index 000000000000..a7bd21deb00f --- /dev/null +++ b/arch/m68k/platform/68328/config.c @@ -0,0 +1,52 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/68328/config.c + * + * Copyright (C) 1993 Hamish Macdonald + * Copyright (C) 1999 D. Jeff Dionne + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * VZ Support/Fixes Evan Stawnyczy <e@lineo.ca> + */ + +/***************************************************************************/ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <asm/system.h> +#include <asm/machdep.h> +#include <asm/MC68328.h> + +/***************************************************************************/ + +void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec); + +/***************************************************************************/ + +void m68328_reset (void) +{ + local_irq_disable(); + asm volatile ("moveal #0x10c00000, %a0;\n\t" + "moveb #0, 0xFFFFF300;\n\t" + "moveal 0(%a0), %sp;\n\t" + "moveal 4(%a0), %a0;\n\t" + "jmp (%a0);"); +} + +/***************************************************************************/ + +void config_BSP(char *command, int len) +{ + printk(KERN_INFO "\n68328 support D. Jeff Dionne <jeff@uclinux.org>\n"); + printk(KERN_INFO "68328 support Kenneth Albanowski <kjahds@kjshds.com>\n"); + printk(KERN_INFO "68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n"); + + mach_gettod = m68328_timer_gettod; + mach_reset = m68328_reset; +} + +/***************************************************************************/ diff --git a/arch/m68k/platform/68328/entry.S b/arch/m68k/platform/68328/entry.S new file mode 100644 index 000000000000..676960cf022a --- /dev/null +++ b/arch/m68k/platform/68328/entry.S @@ -0,0 +1,263 @@ +/* + * linux/arch/m68knommu/platform/68328/entry.S + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file README.legal in the main directory of this archive + * for more details. + * + * Linux/m68k support by Hamish Macdonald + */ + +#include <linux/sys.h> +#include <linux/linkage.h> +#include <asm/thread_info.h> +#include <asm/unistd.h> +#include <asm/errno.h> +#include <asm/setup.h> +#include <asm/segment.h> +#include <asm/traps.h> +#include <asm/asm-offsets.h> +#include <asm/entry.h> + +.text + +.globl system_call +.globl resume +.globl ret_from_exception +.globl ret_from_signal +.globl sys_call_table +.globl ret_from_interrupt +.globl bad_interrupt +.globl inthandler1 +.globl inthandler2 +.globl inthandler3 +.globl inthandler4 +.globl inthandler5 +.globl inthandler6 +.globl inthandler7 + +badsys: + movel #-ENOSYS,%sp@(PT_OFF_D0) + jra ret_from_exception + +do_trace: + movel #-ENOSYS,%sp@(PT_OFF_D0) /* needed for strace*/ + subql #4,%sp + SAVE_SWITCH_STACK + jbsr syscall_trace_enter + RESTORE_SWITCH_STACK + addql #4,%sp + movel %sp@(PT_OFF_ORIG_D0),%d1 + movel #-ENOSYS,%d0 + cmpl #NR_syscalls,%d1 + jcc 1f + lsl #2,%d1 + lea sys_call_table, %a0 + jbsr %a0@(%d1) + +1: movel %d0,%sp@(PT_OFF_D0) /* save the return value */ + subql #4,%sp /* dummy return address */ + SAVE_SWITCH_STACK + jbsr syscall_trace_leave + +ret_from_signal: + RESTORE_SWITCH_STACK + addql #4,%sp + jra ret_from_exception + +ENTRY(system_call) + SAVE_ALL + + /* save top of frame*/ + pea %sp@ + jbsr set_esp0 + addql #4,%sp + + movel %sp@(PT_OFF_ORIG_D0),%d0 + + movel %sp,%d1 /* get thread_info pointer */ + andl #-THREAD_SIZE,%d1 + movel %d1,%a2 + btst #(TIF_SYSCALL_TRACE%8),%a2@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) + jne do_trace + cmpl #NR_syscalls,%d0 + jcc badsys + lsl #2,%d0 + lea sys_call_table,%a0 + movel %a0@(%d0), %a0 + jbsr %a0@ + movel %d0,%sp@(PT_OFF_D0) /* save the return value*/ + +ret_from_exception: + btst #5,%sp@(PT_OFF_SR) /* check if returning to kernel*/ + jeq Luser_return /* if so, skip resched, signals*/ + +Lkernel_return: + RESTORE_ALL + +Luser_return: + /* only allow interrupts when we are really the last one on the*/ + /* kernel stack, otherwise stack overflow can occur during*/ + /* heavy interrupt load*/ + andw #ALLOWINT,%sr + + movel %sp,%d1 /* get thread_info pointer */ + andl #-THREAD_SIZE,%d1 + movel %d1,%a2 +1: + move %a2@(TI_FLAGS),%d1 /* thread_info->flags */ + jne Lwork_to_do + RESTORE_ALL + +Lwork_to_do: + movel %a2@(TI_FLAGS),%d1 /* thread_info->flags */ + btst #TIF_NEED_RESCHED,%d1 + jne reschedule + +Lsignal_return: + subql #4,%sp /* dummy return address*/ + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + bsrw do_signal + addql #4,%sp + RESTORE_SWITCH_STACK + addql #4,%sp + jra 1b + +/* + * This is the main interrupt handler, responsible for calling process_int() + */ +inthandler1: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #65,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler2: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #66,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler3: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #67,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler4: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #68,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler5: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #69,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler6: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #70,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler7: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel #71,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +inthandler: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and #0x3ff, %d0 + + movel %sp,%sp@- + movel %d0,%sp@- /* put vector # on stack*/ + jbsr process_int /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +ret_from_interrupt: + jeq 1f +2: + RESTORE_ALL +1: + moveb %sp@(PT_OFF_SR), %d0 + and #7, %d0 + jhi 2b + + /* check if we need to do software interrupts */ + jeq ret_from_exception + + pea ret_from_exception + jra do_softirq + + +/* + * Handler for uninitialized and spurious interrupts. + */ +ENTRY(bad_interrupt) + addql #1,num_spurious + rte + +/* + * Beware - when entering resume, prev (the current task) is + * in a0, next (the new task) is in a1,so don't change these + * registers until their contents are no longer needed. + */ +ENTRY(resume) + movel %a0,%d1 /* save prev thread in d1 */ + movew %sr,%a0@(TASK_THREAD+THREAD_SR) /* save sr */ + movel %usp,%a2 /* save usp */ + movel %a2,%a0@(TASK_THREAD+THREAD_USP) + + SAVE_SWITCH_STACK + movel %sp,%a0@(TASK_THREAD+THREAD_KSP) /* save kernel stack */ + movel %a1@(TASK_THREAD+THREAD_KSP),%sp /* restore new thread stack */ + RESTORE_SWITCH_STACK + + movel %a1@(TASK_THREAD+THREAD_USP),%a0 /* restore user stack */ + movel %a0,%usp + movew %a1@(TASK_THREAD+THREAD_SR),%sr /* restore thread status reg */ + rts + diff --git a/arch/m68k/platform/68328/head-de2.S b/arch/m68k/platform/68328/head-de2.S new file mode 100644 index 000000000000..f632fdcb93e9 --- /dev/null +++ b/arch/m68k/platform/68328/head-de2.S @@ -0,0 +1,128 @@ + +#define MEM_END 0x00800000 /* Memory size 8Mb */ + +#undef CRT_DEBUG + +.macro PUTC CHAR +#ifdef CRT_DEBUG + moveq #\CHAR, %d7 + jsr putc +#endif +.endm + + .global _start + .global _rambase + .global _ramvec + .global _ramstart + .global _ramend + + .data + +/* + * Set up the usable of RAM stuff + */ +_rambase: + .long 0 +_ramvec: + .long 0 +_ramstart: + .long 0 +_ramend: + .long 0 + + .text + +_start: + +/* + * Setup initial stack + */ + /* disable all interrupts */ + movew #0x2700, %sr + movel #-1, 0xfffff304 + movel #MEM_END-4, %sp + + PUTC '\r' + PUTC '\n' + PUTC 'A' + PUTC 'B' + +/* + * Determine end of RAM + */ + + movel #MEM_END, %a0 + movel %a0, _ramend + + PUTC 'C' + +/* + * Move ROM filesystem above bss :-) + */ + + moveal #_sbss, %a0 /* romfs at the start of bss */ + moveal #_ebss, %a1 /* Set up destination */ + movel %a0, %a2 /* Copy of bss start */ + + movel 8(%a0), %d1 /* Get size of ROMFS */ + addql #8, %d1 /* Allow for rounding */ + andl #0xfffffffc, %d1 /* Whole words */ + + addl %d1, %a0 /* Copy from end */ + addl %d1, %a1 /* Copy from end */ + movel %a1, _ramstart /* Set start of ram */ + +1: + movel -(%a0), %d0 /* Copy dword */ + movel %d0, -(%a1) + cmpl %a0, %a2 /* Check if at end */ + bne 1b + + PUTC 'D' + +/* + * Initialize BSS segment to 0 + */ + + lea _sbss, %a0 + lea _ebss, %a1 + + /* Copy 0 to %a0 until %a0 == %a1 */ +2: cmpal %a0, %a1 + beq 1f + clrl (%a0)+ + bra 2b +1: + + PUTC 'E' + +/* + * Load the current task pointer and stack + */ + + lea init_thread_union, %a0 + lea 0x2000(%a0), %sp + + PUTC 'F' + PUTC '\r' + PUTC '\n' + +/* + * Go + */ + + jmp start_kernel + +/* + * Local functions + */ + +#ifdef CRT_DEBUG +putc: + moveb %d7, 0xfffff907 +1: + movew 0xfffff906, %d7 + andw #0x2000, %d7 + beq 1b + rts +#endif diff --git a/arch/m68k/platform/68328/head-pilot.S b/arch/m68k/platform/68328/head-pilot.S new file mode 100644 index 000000000000..aecff532b343 --- /dev/null +++ b/arch/m68k/platform/68328/head-pilot.S @@ -0,0 +1,222 @@ +/* + * linux/arch/m68knommu/platform/68328/head-pilot.S + * - A startup file for the MC68328 + * + * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * The Silver Hammer Group, Ltd. + * + * (c) 1995, Dionne & Associates + * (c) 1995, DKG Display Tech. + */ + +#define ASSEMBLY + +#define IMMED # +#define DBG_PUTC(x) moveb IMMED x, 0xfffff907 + + +.global _stext +.global _start + +.global _rambase +.global _ramvec +.global _ramstart +.global _ramend + +.global penguin_bits + +#ifdef CONFIG_PILOT + +#define IMR 0xFFFFF304 + + .data + .align 16 + +penguin_bits: +#include "bootlogo.rh" + +#endif + +/*****************************************************************************/ + +.data + +/* + * Set up the usable of RAM stuff. Size of RAM is determined then + * an initial stack set up at the end. + */ +.align 4 +_ramvec: +.long 0 +_rambase: +.long 0 +_ramstart: +.long 0 +_ramend: +.long 0 + +.text + +_start: +_stext: + + +#ifdef CONFIG_M68328 + +#ifdef CONFIG_PILOT + .byte 0x4e, 0xfa, 0x00, 0x0a /* Jmp +X bytes */ + .byte 'b', 'o', 'o', 't' + .word 10000 + + nop +#endif + + moveq #0, %d0 + movew %d0, 0xfffff618 /* Watchdog off */ + movel #0x00011f07, 0xfffff114 /* CS A1 Mask */ + + movew #0x0800, 0xfffff906 /* Ignore CTS */ + movew #0x010b, 0xfffff902 /* BAUD to 9600 */ + + movew #0x2410, 0xfffff200 /* PLLCR */ + movew #0x123, 0xfffff202 /* PLLFSR */ + +#ifdef CONFIG_PILOT + moveb #0, 0xfffffA27 /* LCKCON */ + movel #_start, 0xfffffA00 /* LSSA */ + moveb #0xa, 0xfffffA05 /* LVPW */ + movew #0x9f, 0xFFFFFa08 /* LXMAX */ + movew #0x9f, 0xFFFFFa0a /* LYMAX */ + moveb #9, 0xfffffa29 /* LBAR */ + moveb #0, 0xfffffa25 /* LPXCD */ + moveb #0x04, 0xFFFFFa20 /* LPICF */ + moveb #0x58, 0xfffffA27 /* LCKCON */ + moveb #0x85, 0xfffff429 /* PFDATA */ + moveb #0xd8, 0xfffffA27 /* LCKCON */ + moveb #0xc5, 0xfffff429 /* PFDATA */ + moveb #0xd5, 0xfffff429 /* PFDATA */ + + moveal #0x00100000, %a3 + moveal #0x100ffc00, %a4 +#endif /* CONFIG_PILOT */ + +#endif /* CONFIG_M68328 */ + + movew #0x2700, %sr + lea %a4@(-4), %sp + + DBG_PUTC('\r') + DBG_PUTC('\n') + DBG_PUTC('A') + + moveq #0,%d0 + movew #16384, %d0 /* PLL settle wait loop */ +L0: + subw #1, %d0 + bne L0 + + DBG_PUTC('B') + + /* Copy command line from beginning of RAM (+16) to end of bss */ + movel #CONFIG_VECTORBASE, %d7 + addl #16, %d7 + moveal %d7, %a0 + moveal #_ebss, %a1 + lea %a1@(512), %a2 + + DBG_PUTC('C') + + /* Copy %a0 to %a1 until %a1 == %a2 */ +L2: + movel %a0@+, %d0 + movel %d0, %a1@+ + cmpal %a1, %a2 + bhi L2 + + /* Copy data+init segment from ROM to RAM */ + moveal #_etext, %a0 + moveal #_sdata, %a1 + moveal #__init_end, %a2 + + DBG_PUTC('D') + + /* Copy %a0 to %a1 until %a1 == %a2 */ +LD1: + movel %a0@+, %d0 + movel %d0, %a1@+ + cmpal %a1, %a2 + bhi LD1 + + DBG_PUTC('E') + + moveal #_sbss, %a0 + moveal #_ebss, %a1 + + /* Copy 0 to %a0 until %a0 == %a1 */ +L1: + movel #0, %a0@+ + cmpal %a0, %a1 + bhi L1 + + DBG_PUTC('F') + + /* Copy command line from end of bss to command line */ + moveal #_ebss, %a0 + moveal #command_line, %a1 + lea %a1@(512), %a2 + + DBG_PUTC('G') + + /* Copy %a0 to %a1 until %a1 == %a2 */ +L3: + movel %a0@+, %d0 + movel %d0, %a1@+ + cmpal %a1, %a2 + bhi L3 + + movel #_sdata, %d0 + movel %d0, _rambase + movel #_ebss, %d0 + movel %d0, _ramstart + + movel %a4, %d0 + subl #4096, %d0 /* Reserve 4K of stack */ + moveq #79, %d7 + movel %d0, _ramend + + movel %a3, %d0 + movel %d0, rom_length + + pea 0 + pea env + pea %sp@(4) + pea 0 + + DBG_PUTC('H') + +#ifdef CONFIG_PILOT + movel #penguin_bits, 0xFFFFFA00 + moveb #10, 0xFFFFFA05 + movew #160, 0xFFFFFA08 + movew #160, 0xFFFFFA0A +#endif /* CONFIG_PILOT */ + + DBG_PUTC('I') + + lea init_thread_union, %a0 + lea 0x2000(%a0), %sp + + DBG_PUTC('J') + DBG_PUTC('\r') + DBG_PUTC('\n') + + jsr start_kernel +_exit: + + jmp _exit + + + .data +env: + .long 0 diff --git a/arch/m68k/platform/68328/head-ram.S b/arch/m68k/platform/68328/head-ram.S new file mode 100644 index 000000000000..7f1aeeacb219 --- /dev/null +++ b/arch/m68k/platform/68328/head-ram.S @@ -0,0 +1,141 @@ + + .global __main + .global __rom_start + + .global _rambase + .global _ramstart + + .global splash_bits + .global _start + .global _stext + .global _edata + +#define DEBUG +#define ROM_OFFSET 0x10C00000 +#define STACK_GAURD 0x10 + + .text + +_start: +_stext: + movew #0x2700, %sr /* Exceptions off! */ + +#if 0 + /* Init chip registers. uCsimm specific */ + moveb #0x00, 0xfffffb0b /* Watchdog off */ + moveb #0x10, 0xfffff000 /* SCR */ + + movew #0x2400, 0xfffff200 /* PLLCR */ + movew #0x0123, 0xfffff202 /* PLLFSR */ + + moveb #0x00, 0xfffff40b /* enable chip select */ + moveb #0x00, 0xfffff423 /* enable /DWE */ + moveb #0x08, 0xfffffd0d /* disable hardmap */ + moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */ + + movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */ + movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */ + + movew #0x8f00, 0xfffffc00 /* DRAM configuration */ + movew #0x9667, 0xfffffc02 /* DRAM control */ + movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */ + movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */ + + moveb #0x40, 0xfffff300 /* IVR */ + movel #0x007FFFFF, %d0 /* IMR */ + movel %d0, 0xfffff304 + + moveb 0xfffff42b, %d0 + andb #0xe0, %d0 + moveb %d0, 0xfffff42b + + moveb #0x08, 0xfffff907 /* Ignore CTS */ + movew #0x010b, 0xfffff902 /* BAUD to 9600 */ + movew #0xe100, 0xfffff900 /* enable */ +#endif + + movew #16384, %d0 /* PLL settle wait loop */ +L0: + subw #1, %d0 + bne L0 +#ifdef DEBUG + moveq #70, %d7 /* 'F' */ + moveb %d7,0xfffff907 /* No absolute addresses */ +pclp1: + movew 0xfffff906, %d7 + andw #0x2000, %d7 + beq pclp1 +#endif /* DEBUG */ + +#ifdef DEBUG + moveq #82, %d7 /* 'R' */ + moveb %d7,0xfffff907 /* No absolute addresses */ +pclp3: + movew 0xfffff906, %d7 + andw #0x2000, %d7 + beq pclp3 +#endif /* DEBUG */ + moveal #0x007ffff0, %ssp + moveal #_sbss, %a0 + moveal #_ebss, %a1 + + /* Copy 0 to %a0 until %a0 >= %a1 */ +L1: + movel #0, %a0@+ + cmpal %a0, %a1 + bhi L1 + +#ifdef DEBUG + moveq #67, %d7 /* 'C' */ + jsr putc +#endif /* DEBUG */ + + pea 0 + pea env + pea %sp@(4) + pea 0 + +#ifdef DEBUG + moveq #70, %d7 /* 'F' */ + jsr putc +#endif /* DEBUG */ + +lp: + jsr start_kernel + jmp lp +_exit: + + jmp _exit + +__main: + /* nothing */ + rts + +#ifdef DEBUG +putc: + moveb %d7,0xfffff907 +pclp: + movew 0xfffff906, %d7 + andw #0x2000, %d7 + beq pclp + rts +#endif /* DEBUG */ + + .data + +/* + * Set up the usable of RAM stuff. Size of RAM is determined then + * an initial stack set up at the end. + */ +.align 4 +_ramvec: +.long 0 +_rambase: +.long 0 +_ramstart: +.long 0 +_ramend: +.long 0 + +env: + .long 0 diff --git a/arch/m68k/platform/68328/head-rom.S b/arch/m68k/platform/68328/head-rom.S new file mode 100644 index 000000000000..6ec77d3ea0b3 --- /dev/null +++ b/arch/m68k/platform/68328/head-rom.S @@ -0,0 +1,110 @@ + + .global _start + .global _stext + + .global _rambase + .global _ramvec + .global _ramstart + .global _ramend + +#ifdef CONFIG_INIT_LCD + .global splash_bits +#endif + + .data + +/* + * Set up the usable of RAM stuff. Size of RAM is determined then + * an initial stack set up at the end. + */ +.align 4 +_ramvec: +.long 0 +_rambase: +.long 0 +_ramstart: +.long 0 +_ramend: +.long 0 + +#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE) + +#ifdef CONFIG_INIT_LCD +splash_bits: +#include "bootlogo.rh" +#endif + + .text +_start: +_stext: movew #0x2700,%sr +#ifdef CONFIG_INIT_LCD + movel #splash_bits, 0xfffffA00 /* LSSA */ + moveb #0x28, 0xfffffA05 /* LVPW */ + movew #0x280, 0xFFFFFa08 /* LXMAX */ + movew #0x1df, 0xFFFFFa0a /* LYMAX */ + moveb #0, 0xfffffa29 /* LBAR */ + moveb #0, 0xfffffa25 /* LPXCD */ + moveb #0x08, 0xFFFFFa20 /* LPICF */ + moveb #0x01, 0xFFFFFA21 /* -ve pol */ + moveb #0x81, 0xfffffA27 /* LCKCON */ + movew #0xff00, 0xfffff412 /* LCD pins */ +#endif + moveal #RAMEND-CONFIG_MEMORY_RESERVE*0x100000 - 0x10, %sp + movew #32767, %d0 /* PLL settle wait loop */ +1: subq #1, %d0 + bne 1b + + /* Copy data segment from ROM to RAM */ + moveal #_etext, %a0 + moveal #_sdata, %a1 + moveal #_edata, %a2 + + /* Copy %a0 to %a1 until %a1 == %a2 */ +1: movel %a0@+, %a1@+ + cmpal %a1, %a2 + bhi 1b + + moveal #_sbss, %a0 + moveal #_ebss, %a1 + /* Copy 0 to %a0 until %a0 == %a1 */ + +1: + clrl %a0@+ + cmpal %a0, %a1 + bhi 1b + + movel #_sdata, %d0 + movel %d0, _rambase + movel #_ebss, %d0 + movel %d0, _ramstart + movel #RAMEND-CONFIG_MEMORY_RESERVE*0x100000, %d0 + movel %d0, _ramend + movel #CONFIG_VECTORBASE, %d0 + movel %d0, _ramvec + +/* + * load the current task pointer and stack + */ + lea init_thread_union, %a0 + lea 0x2000(%a0), %sp + +1: jsr start_kernel + bra 1b +_exit: + + jmp _exit + + +putc: + moveb %d7,0xfffff907 +1: + movew 0xfffff906, %d7 + andw #0x2000, %d7 + beq 1b + rts + + .data +env: + .long 0 + .text + diff --git a/arch/m68k/platform/68328/ints.c b/arch/m68k/platform/68328/ints.c new file mode 100644 index 000000000000..e5631831a200 --- /dev/null +++ b/arch/m68k/platform/68328/ints.c @@ -0,0 +1,186 @@ +/* + * linux/arch/m68knommu/platform/68328/ints.c + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Copyright 1996 Roman Zippel + * Copyright 1999 D. Jeff Dionne <jeff@rt-control.com> + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <asm/traps.h> +#include <asm/io.h> +#include <asm/machdep.h> + +#if defined(CONFIG_M68328) +#include <asm/MC68328.h> +#elif defined(CONFIG_M68EZ328) +#include <asm/MC68EZ328.h> +#elif defined(CONFIG_M68VZ328) +#include <asm/MC68VZ328.h> +#endif + +/* assembler routines */ +asmlinkage void system_call(void); +asmlinkage void buserr(void); +asmlinkage void trap(void); +asmlinkage void trap3(void); +asmlinkage void trap4(void); +asmlinkage void trap5(void); +asmlinkage void trap6(void); +asmlinkage void trap7(void); +asmlinkage void trap8(void); +asmlinkage void trap9(void); +asmlinkage void trap10(void); +asmlinkage void trap11(void); +asmlinkage void trap12(void); +asmlinkage void trap13(void); +asmlinkage void trap14(void); +asmlinkage void trap15(void); +asmlinkage void trap33(void); +asmlinkage void trap34(void); +asmlinkage void trap35(void); +asmlinkage void trap36(void); +asmlinkage void trap37(void); +asmlinkage void trap38(void); +asmlinkage void trap39(void); +asmlinkage void trap40(void); +asmlinkage void trap41(void); +asmlinkage void trap42(void); +asmlinkage void trap43(void); +asmlinkage void trap44(void); +asmlinkage void trap45(void); +asmlinkage void trap46(void); +asmlinkage void trap47(void); +asmlinkage irqreturn_t bad_interrupt(int, void *); +asmlinkage irqreturn_t inthandler(void); +asmlinkage irqreturn_t inthandler1(void); +asmlinkage irqreturn_t inthandler2(void); +asmlinkage irqreturn_t inthandler3(void); +asmlinkage irqreturn_t inthandler4(void); +asmlinkage irqreturn_t inthandler5(void); +asmlinkage irqreturn_t inthandler6(void); +asmlinkage irqreturn_t inthandler7(void); + +extern e_vector *_ramvec; + +/* The number of spurious interrupts */ +volatile unsigned int num_spurious; + +/* The 68k family did not have a good way to determine the source + * of interrupts until later in the family. The EC000 core does + * not provide the vector number on the stack, we vector everything + * into one vector and look in the blasted mask register... + * This code is designed to be fast, almost constant time, not clean! + */ +void process_int(int vec, struct pt_regs *fp) +{ + int irq; + int mask; + + unsigned long pend = ISR; + + while (pend) { + if (pend & 0x0000ffff) { + if (pend & 0x000000ff) { + if (pend & 0x0000000f) { + mask = 0x00000001; + irq = 0; + } else { + mask = 0x00000010; + irq = 4; + } + } else { + if (pend & 0x00000f00) { + mask = 0x00000100; + irq = 8; + } else { + mask = 0x00001000; + irq = 12; + } + } + } else { + if (pend & 0x00ff0000) { + if (pend & 0x000f0000) { + mask = 0x00010000; + irq = 16; + } else { + mask = 0x00100000; + irq = 20; + } + } else { + if (pend & 0x0f000000) { + mask = 0x01000000; + irq = 24; + } else { + mask = 0x10000000; + irq = 28; + } + } + } + + while (! (mask & pend)) { + mask <<=1; + irq++; + } + + do_IRQ(irq, fp); + pend &= ~mask; + } +} + +static void intc_irq_unmask(struct irq_data *d) +{ + IMR &= ~(1 << d->irq); +} + +static void intc_irq_mask(struct irq_data *d) +{ + IMR |= (1 << d->irq); +} + +static struct irq_chip intc_irq_chip = { + .name = "M68K-INTC", + .irq_mask = intc_irq_mask, + .irq_unmask = intc_irq_unmask, +}; + +/* + * This function should be called during kernel startup to initialize + * the machine vector table. + */ +void __init init_IRQ(void) +{ + int i; + + /* set up the vectors */ + for (i = 72; i < 256; ++i) + _ramvec[i] = (e_vector) bad_interrupt; + + _ramvec[32] = system_call; + + _ramvec[65] = (e_vector) inthandler1; + _ramvec[66] = (e_vector) inthandler2; + _ramvec[67] = (e_vector) inthandler3; + _ramvec[68] = (e_vector) inthandler4; + _ramvec[69] = (e_vector) inthandler5; + _ramvec[70] = (e_vector) inthandler6; + _ramvec[71] = (e_vector) inthandler7; + + IVR = 0x40; /* Set DragonBall IVR (interrupt base) to 64 */ + + /* turn off all interrupts */ + IMR = ~0; + + for (i = 0; (i < NR_IRQS); i++) { + set_irq_chip(i, &intc_irq_chip); + set_irq_handler(i, handle_level_irq); + } +} + diff --git a/arch/m68k/platform/68328/romvec.S b/arch/m68k/platform/68328/romvec.S new file mode 100644 index 000000000000..31084466eae8 --- /dev/null +++ b/arch/m68k/platform/68328/romvec.S @@ -0,0 +1,35 @@ +/* + * linux/arch/m68knommu/platform/68328/romvec.S + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Copyright 1996 Roman Zippel + * Copyright 1999 D. Jeff Dionne <jeff@rt-control.com> + * Copyright 2006 Greg Ungerer <gerg@snapgear.com> + */ + +.global _start +.global _buserr +.global trap +.global system_call + +.section .romvec + +e_vectors: +.long CONFIG_RAMBASE+CONFIG_RAMSIZE-4, _start, buserr, trap +.long trap, trap, trap, trap +.long trap, trap, trap, trap +.long trap, trap, trap, trap +.long trap, trap, trap, trap +.long trap, trap, trap, trap +.long trap, trap, trap, trap +.long trap, trap, trap, trap +/* TRAP #0-15 */ +.long system_call, trap, trap, trap +.long trap, trap, trap, trap +.long trap, trap, trap, trap +.long trap, trap, trap, trap +.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 + diff --git a/arch/m68k/platform/68328/timers.c b/arch/m68k/platform/68328/timers.c new file mode 100644 index 000000000000..309f725995bf --- /dev/null +++ b/arch/m68k/platform/68328/timers.c @@ -0,0 +1,134 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/68328/timers.c + * + * Copyright (C) 1993 Hamish Macdonald + * Copyright (C) 1999 D. Jeff Dionne + * Copyright (C) 2001 Georges Menie, Ken Desmet + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +/***************************************************************************/ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/clocksource.h> +#include <asm/setup.h> +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/machdep.h> +#include <asm/MC68VZ328.h> + +/***************************************************************************/ + +#if defined(CONFIG_DRAGEN2) +/* with a 33.16 MHz clock, this will give usec resolution to the time functions */ +#define CLOCK_SOURCE TCTL_CLKSOURCE_SYSCLK +#define CLOCK_PRE 7 +#define TICKS_PER_JIFFY 41450 + +#elif defined(CONFIG_XCOPILOT_BUGS) +/* + * The only thing I know is that CLK32 is not available on Xcopilot + * I have little idea about what frequency SYSCLK has on Xcopilot. + * The values for prescaler and compare registers were simply + * taken from the original source + */ +#define CLOCK_SOURCE TCTL_CLKSOURCE_SYSCLK +#define CLOCK_PRE 2 +#define TICKS_PER_JIFFY 0xd7e4 + +#else +/* default to using the 32Khz clock */ +#define CLOCK_SOURCE TCTL_CLKSOURCE_32KHZ +#define CLOCK_PRE 31 +#define TICKS_PER_JIFFY 10 +#endif + +static u32 m68328_tick_cnt; + +/***************************************************************************/ + +static irqreturn_t hw_tick(int irq, void *dummy) +{ + /* Reset Timer1 */ + TSTAT &= 0; + + m68328_tick_cnt += TICKS_PER_JIFFY; + return arch_timer_interrupt(irq, dummy); +} + +/***************************************************************************/ + +static struct irqaction m68328_timer_irq = { + .name = "timer", + .flags = IRQF_DISABLED | IRQF_TIMER, + .handler = hw_tick, +}; + +/***************************************************************************/ + +static cycle_t m68328_read_clk(struct clocksource *cs) +{ + unsigned long flags; + u32 cycles; + + local_irq_save(flags); + cycles = m68328_tick_cnt + TCN; + local_irq_restore(flags); + + return cycles; +} + +/***************************************************************************/ + +static struct clocksource m68328_clk = { + .name = "timer", + .rating = 250, + .read = m68328_read_clk, + .shift = 20, + .mask = CLOCKSOURCE_MASK(32), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +/***************************************************************************/ + +void hw_timer_init(void) +{ + /* disable timer 1 */ + TCTL = 0; + + /* set ISR */ + setup_irq(TMR_IRQ_NUM, &m68328_timer_irq); + + /* Restart mode, Enable int, Set clock source */ + TCTL = TCTL_OM | TCTL_IRQEN | CLOCK_SOURCE; + TPRER = CLOCK_PRE; + TCMP = TICKS_PER_JIFFY; + + /* Enable timer 1 */ + TCTL |= TCTL_TEN; + m68328_clk.mult = clocksource_hz2mult(TICKS_PER_JIFFY*HZ, m68328_clk.shift); + clocksource_register(&m68328_clk); +} + +/***************************************************************************/ + +void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec) +{ + long now = RTCTIME; + + *year = *mon = *day = 1; + *hour = (now >> 24) % 24; + *min = (now >> 16) % 60; + *sec = now % 60; +} + +/***************************************************************************/ diff --git a/arch/m68k/platform/68360/Makefile b/arch/m68k/platform/68360/Makefile new file mode 100644 index 000000000000..cf5af73a5789 --- /dev/null +++ b/arch/m68k/platform/68360/Makefile @@ -0,0 +1,10 @@ +# +# Makefile for arch/m68knommu/platform/68360. +# + +obj-y := config.o commproc.o entry.o ints.o + +extra-y := head.o + +$(obj)/head.o: $(obj)/head-$(MODEL).o + ln -sf head-$(MODEL).o $(obj)/head.o diff --git a/arch/m68k/platform/68360/commproc.c b/arch/m68k/platform/68360/commproc.c new file mode 100644 index 000000000000..8e4e10cc0080 --- /dev/null +++ b/arch/m68k/platform/68360/commproc.c @@ -0,0 +1,308 @@ +/* + * General Purpose functions for the global management of the + * Communication Processor Module. + * + * Copyright (c) 2000 Michael Leslie <mleslie@lineo.com> + * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) + * + * In addition to the individual control of the communication + * channels, there are a few functions that globally affect the + * communication processor. + * + * Buffer descriptors must be allocated from the dual ported memory + * space. The allocator for that is here. When the communication + * process is reset, we reclaim the memory available. There is + * currently no deallocator for this memory. + * The amount of space available is platform dependent. On the + * MBX, the EPPC software loads additional microcode into the + * communication processor, and uses some of the DP ram for this + * purpose. Current, the first 512 bytes and the last 256 bytes of + * memory are used. Right now I am conservative and only use the + * memory that can never be used for microcode. If there are + * applications that require more DP ram, we can expand the boundaries + * but then we have to be careful of any downloaded microcode. + * + */ + +/* + * Michael Leslie <mleslie@lineo.com> + * adapted Dan Malek's ppc8xx drivers to M68360 + * + */ + +#include <linux/errno.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/interrupt.h> +#include <asm/irq.h> +#include <asm/m68360.h> +#include <asm/commproc.h> + +/* #include <asm/page.h> */ +/* #include <asm/pgtable.h> */ +extern void *_quicc_base; +extern unsigned int system_clock; + + +static uint dp_alloc_base; /* Starting offset in DP ram */ +static uint dp_alloc_top; /* Max offset + 1 */ + +#if 0 +static void *host_buffer; /* One page of host buffer */ +static void *host_end; /* end + 1 */ +#endif + +/* struct cpm360_t *cpmp; */ /* Pointer to comm processor space */ + +QUICC *pquicc; +/* QUICC *quicc_dpram; */ /* mleslie - temporary; use extern pquicc elsewhere instead */ + + +/* CPM interrupt vector functions. */ +struct cpm_action { + void (*handler)(void *); + void *dev_id; +}; +static struct cpm_action cpm_vecs[CPMVEC_NR]; +static void cpm_interrupt(int irq, void * dev, struct pt_regs * regs); +static void cpm_error_interrupt(void *); + +/* prototypes: */ +void cpm_install_handler(int vec, void (*handler)(), void *dev_id); +void m360_cpm_reset(void); + + + + +void m360_cpm_reset() +{ +/* pte_t *pte; */ + + pquicc = (struct quicc *)(_quicc_base); /* initialized in crt0_rXm.S */ + + /* Perform a CPM reset. */ + pquicc->cp_cr = (SOFTWARE_RESET | CMD_FLAG); + + /* Wait for CPM to become ready (should be 2 clocks). */ + while (pquicc->cp_cr & CMD_FLAG); + + /* On the recommendation of the 68360 manual, p. 7-60 + * - Set sdma interrupt service mask to 7 + * - Set sdma arbitration ID to 4 + */ + pquicc->sdma_sdcr = 0x0740; + + + /* Claim the DP memory for our use. + */ + dp_alloc_base = CPM_DATAONLY_BASE; + dp_alloc_top = dp_alloc_base + CPM_DATAONLY_SIZE; + + + /* Set the host page for allocation. + */ + /* host_buffer = host_page_addr; */ + /* host_end = host_page_addr + PAGE_SIZE; */ + + /* pte = find_pte(&init_mm, host_page_addr); */ + /* pte_val(*pte) |= _PAGE_NO_CACHE; */ + /* flush_tlb_page(current->mm->mmap, host_buffer); */ + + /* Tell everyone where the comm processor resides. + */ +/* cpmp = (cpm360_t *)commproc; */ +} + + +/* This is called during init_IRQ. We used to do it above, but this + * was too early since init_IRQ was not yet called. + */ +void +cpm_interrupt_init(void) +{ + /* Initialize the CPM interrupt controller. + * NOTE THAT pquicc had better have been initialized! + * reference: MC68360UM p. 7-377 + */ + pquicc->intr_cicr = + (CICR_SCD_SCC4 | CICR_SCC_SCC3 | CICR_SCB_SCC2 | CICR_SCA_SCC1) | + (CPM_INTERRUPT << 13) | + CICR_HP_MASK | + (CPM_VECTOR_BASE << 5) | + CICR_SPS; + + /* mask all CPM interrupts from reaching the cpu32 core: */ + pquicc->intr_cimr = 0; + + + /* mles - If I understand correctly, the 360 just pops over to the CPM + * specific vector, obviating the necessity to vector through the IRQ + * whose priority the CPM is set to. This needs a closer look, though. + */ + + /* Set our interrupt handler with the core CPU. */ +/* if (request_irq(CPM_INTERRUPT, cpm_interrupt, 0, "cpm", NULL) != 0) */ +/* panic("Could not allocate CPM IRQ!"); */ + + /* Install our own error handler. + */ + /* I think we want to hold off on this one for the moment - mles */ + /* cpm_install_handler(CPMVEC_ERROR, cpm_error_interrupt, NULL); */ + + /* master CPM interrupt enable */ + /* pquicc->intr_cicr |= CICR_IEN; */ /* no such animal for 360 */ +} + + + +/* CPM interrupt controller interrupt. +*/ +static void +cpm_interrupt(int irq, void * dev, struct pt_regs * regs) +{ + /* uint vec; */ + + /* mles: Note that this stuff is currently being performed by + * M68360_do_irq(int vec, struct pt_regs *fp), in ../ints.c */ + + /* figure out the vector */ + /* call that vector's handler */ + /* clear the irq's bit in the service register */ + +#if 0 /* old 860 stuff: */ + /* Get the vector by setting the ACK bit and then reading + * the register. + */ + ((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr = 1; + vec = ((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr; + vec >>= 11; + + + if (cpm_vecs[vec].handler != 0) + (*cpm_vecs[vec].handler)(cpm_vecs[vec].dev_id); + else + ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr &= ~(1 << vec); + + /* After servicing the interrupt, we have to remove the status + * indicator. + */ + ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cisr |= (1 << vec); +#endif + +} + +/* The CPM can generate the error interrupt when there is a race condition + * between generating and masking interrupts. All we have to do is ACK it + * and return. This is a no-op function so we don't need any special + * tests in the interrupt handler. + */ +static void +cpm_error_interrupt(void *dev) +{ +} + +/* Install a CPM interrupt handler. +*/ +void +cpm_install_handler(int vec, void (*handler)(), void *dev_id) +{ + + request_irq(vec, handler, 0, "timer", dev_id); + +/* if (cpm_vecs[vec].handler != 0) */ +/* printk(KERN_INFO "CPM interrupt %x replacing %x\n", */ +/* (uint)handler, (uint)cpm_vecs[vec].handler); */ +/* cpm_vecs[vec].handler = handler; */ +/* cpm_vecs[vec].dev_id = dev_id; */ + + /* ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr |= (1 << vec); */ +/* pquicc->intr_cimr |= (1 << vec); */ + +} + +/* Free a CPM interrupt handler. +*/ +void +cpm_free_handler(int vec) +{ + cpm_vecs[vec].handler = NULL; + cpm_vecs[vec].dev_id = NULL; + /* ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr &= ~(1 << vec); */ + pquicc->intr_cimr &= ~(1 << vec); +} + + + + +/* Allocate some memory from the dual ported ram. We may want to + * enforce alignment restrictions, but right now everyone is a good + * citizen. + */ +uint +m360_cpm_dpalloc(uint size) +{ + uint retloc; + + if ((dp_alloc_base + size) >= dp_alloc_top) + return(CPM_DP_NOSPACE); + + retloc = dp_alloc_base; + dp_alloc_base += size; + + return(retloc); +} + + +#if 0 /* mleslie - for now these are simply kmalloc'd */ +/* We also own one page of host buffer space for the allocation of + * UART "fifos" and the like. + */ +uint +m360_cpm_hostalloc(uint size) +{ + uint retloc; + + if ((host_buffer + size) >= host_end) + return(0); + + retloc = host_buffer; + host_buffer += size; + + return(retloc); +} +#endif + + +/* Set a baud rate generator. This needs lots of work. There are + * four BRGs, any of which can be wired to any channel. + * The internal baud rate clock is the system clock divided by 16. + * This assumes the baudrate is 16x oversampled by the uart. + */ +/* #define BRG_INT_CLK (((bd_t *)__res)->bi_intfreq * 1000000) */ +#define BRG_INT_CLK system_clock +#define BRG_UART_CLK (BRG_INT_CLK/16) + +void +m360_cpm_setbrg(uint brg, uint rate) +{ + volatile uint *bp; + + /* This is good enough to get SMCs running..... + */ + /* bp = (uint *)&cpmp->cp_brgc1; */ + bp = (volatile uint *)(&pquicc->brgc[0].l); + bp += brg; + *bp = ((BRG_UART_CLK / rate - 1) << 1) | CPM_BRG_EN; +} + + +/* + * Local variables: + * c-indent-level: 4 + * c-basic-offset: 4 + * tab-width: 4 + * End: + */ diff --git a/arch/m68k/platform/68360/config.c b/arch/m68k/platform/68360/config.c new file mode 100644 index 000000000000..9dd5bca38749 --- /dev/null +++ b/arch/m68k/platform/68360/config.c @@ -0,0 +1,186 @@ +/* + * linux/arch/m68knommu/platform/68360/config.c + * + * Copyright (c) 2000 Michael Leslie <mleslie@lineo.com> + * Copyright (C) 1993 Hamish Macdonald + * Copyright (C) 1999 D. Jeff Dionne <jeff@uclinux.org> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <stdarg.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/interrupt.h> +#include <linux/irq.h> + +#include <asm/setup.h> +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/machdep.h> +#include <asm/m68360.h> + +#ifdef CONFIG_UCQUICC +#include <asm/bootstd.h> +#endif + +extern void m360_cpm_reset(void); + +// Mask to select if the PLL prescaler is enabled. +#define MCU_PREEN ((unsigned short)(0x0001 << 13)) + +#if defined(CONFIG_UCQUICC) +#define OSCILLATOR (unsigned long int)33000000 +#endif + +unsigned long int system_clock; + +extern QUICC *pquicc; + +/* TODO DON"T Hard Code this */ +/* calculate properly using the right PLL and prescaller */ +// unsigned int system_clock = 33000000l; +extern unsigned long int system_clock; //In kernel setup.c + + +static irqreturn_t hw_tick(int irq, void *dummy) +{ + /* Reset Timer1 */ + /* TSTAT &= 0; */ + + pquicc->timer_ter1 = 0x0002; /* clear timer event */ + + return arch_timer_interrupt(irq, dummy); +} + +static struct irqaction m68360_timer_irq = { + .name = "timer", + .flags = IRQF_DISABLED | IRQF_TIMER, + .handler = hw_tick, +}; + +void hw_timer_init(void) +{ + unsigned char prescaler; + unsigned short tgcr_save; + +#if 0 + /* Restart mode, Enable int, 32KHz, Enable timer */ + TCTL = TCTL_OM | TCTL_IRQEN | TCTL_CLKSOURCE_32KHZ | TCTL_TEN; + /* Set prescaler (Divide 32KHz by 32)*/ + TPRER = 31; + /* Set compare register 32Khz / 32 / 10 = 100 */ + TCMP = 10; + + request_irq(IRQ_MACHSPEC | 1, timer_routine, 0, "timer", NULL); +#endif + + /* General purpose quicc timers: MC68360UM p7-20 */ + + /* Set up timer 1 (in [1..4]) to do 100Hz */ + tgcr_save = pquicc->timer_tgcr & 0xfff0; + pquicc->timer_tgcr = tgcr_save; /* stop and reset timer 1 */ + /* pquicc->timer_tgcr |= 0x4444; */ /* halt timers when FREEZE (ie bdm freeze) */ + + prescaler = 8; + pquicc->timer_tmr1 = 0x001a | /* or=1, frr=1, iclk=01b */ + (unsigned short)((prescaler - 1) << 8); + + pquicc->timer_tcn1 = 0x0000; /* initial count */ + /* calculate interval for 100Hz based on the _system_clock: */ + pquicc->timer_trr1 = (system_clock/ prescaler) / HZ; /* reference count */ + + pquicc->timer_ter1 = 0x0003; /* clear timer events */ + + /* enable timer 1 interrupt in CIMR */ + setup_irq(CPMVEC_TIMER1, &m68360_timer_irq); + + /* Start timer 1: */ + tgcr_save = (pquicc->timer_tgcr & 0xfff0) | 0x0001; + pquicc->timer_tgcr = tgcr_save; +} + +void BSP_gettod (int *yearp, int *monp, int *dayp, + int *hourp, int *minp, int *secp) +{ +} + +int BSP_set_clock_mmss(unsigned long nowtime) +{ +#if 0 + short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; + + tod->second1 = real_seconds / 10; + tod->second2 = real_seconds % 10; + tod->minute1 = real_minutes / 10; + tod->minute2 = real_minutes % 10; +#endif + return 0; +} + +void BSP_reset (void) +{ + local_irq_disable(); + asm volatile ( + "moveal #_start, %a0;\n" + "moveb #0, 0xFFFFF300;\n" + "moveal 0(%a0), %sp;\n" + "moveal 4(%a0), %a0;\n" + "jmp (%a0);\n" + ); +} + +unsigned char *scc1_hwaddr; +static int errno; + +#if defined (CONFIG_UCQUICC) +_bsc0(char *, getserialnum) +_bsc1(unsigned char *, gethwaddr, int, a) +_bsc1(char *, getbenv, char *, a) +#endif + + +void config_BSP(char *command, int len) +{ + unsigned char *p; + + m360_cpm_reset(); + + /* Calculate the real system clock value. */ + { + unsigned int local_pllcr = (unsigned int)(pquicc->sim_pllcr); + if( local_pllcr & MCU_PREEN ) // If the prescaler is dividing by 128 + { + int mf = (int)(pquicc->sim_pllcr & 0x0fff); + system_clock = (OSCILLATOR / 128) * (mf + 1); + } + else + { + int mf = (int)(pquicc->sim_pllcr & 0x0fff); + system_clock = (OSCILLATOR) * (mf + 1); + } + } + + printk(KERN_INFO "\n68360 QUICC support (C) 2000 Lineo Inc.\n"); + +#if defined(CONFIG_UCQUICC) && 0 + printk(KERN_INFO "uCquicc serial string [%s]\n",getserialnum()); + p = scc1_hwaddr = gethwaddr(0); + printk(KERN_INFO "uCquicc hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", + p[0], p[1], p[2], p[3], p[4], p[5]); + + p = getbenv("APPEND"); + if (p) + strcpy(p,command); + else + command[0] = 0; +#else + scc1_hwaddr = "\00\01\02\03\04\05"; +#endif + + mach_gettod = BSP_gettod; + mach_reset = BSP_reset; +} diff --git a/arch/m68k/platform/68360/entry.S b/arch/m68k/platform/68360/entry.S new file mode 100644 index 000000000000..46c1b18c9dcb --- /dev/null +++ b/arch/m68k/platform/68360/entry.S @@ -0,0 +1,184 @@ +/* + * linux/arch/m68knommu/platform/68360/entry.S + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright (C) 2001 SED Systems, a Division of Calian Ltd. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file README.legal in the main directory of this archive + * for more details. + * + * Linux/m68k support by Hamish Macdonald + * M68360 Port by SED Systems, and Lineo. + */ + +#include <linux/sys.h> +#include <linux/linkage.h> +#include <asm/thread_info.h> +#include <asm/unistd.h> +#include <asm/errno.h> +#include <asm/setup.h> +#include <asm/segment.h> +#include <asm/traps.h> +#include <asm/asm-offsets.h> +#include <asm/entry.h> + +.text + +.globl system_call +.globl resume +.globl ret_from_exception +.globl ret_from_signal +.globl sys_call_table +.globl ret_from_interrupt +.globl bad_interrupt +.globl inthandler + +badsys: + movel #-ENOSYS,%sp@(PT_OFF_D0) + jra ret_from_exception + +do_trace: + movel #-ENOSYS,%sp@(PT_OFF_D0) /* needed for strace*/ + subql #4,%sp + SAVE_SWITCH_STACK + jbsr syscall_trace_enter + RESTORE_SWITCH_STACK + addql #4,%sp + movel %sp@(PT_OFF_ORIG_D0),%d1 + movel #-ENOSYS,%d0 + cmpl #NR_syscalls,%d1 + jcc 1f + lsl #2,%d1 + lea sys_call_table, %a0 + jbsr %a0@(%d1) + +1: movel %d0,%sp@(PT_OFF_D0) /* save the return value */ + subql #4,%sp /* dummy return address */ + SAVE_SWITCH_STACK + jbsr syscall_trace_leave + +ret_from_signal: + RESTORE_SWITCH_STACK + addql #4,%sp + jra ret_from_exception + +ENTRY(system_call) + SAVE_ALL + + /* save top of frame*/ + pea %sp@ + jbsr set_esp0 + addql #4,%sp + + movel %sp@(PT_OFF_ORIG_D0),%d0 + + movel %sp,%d1 /* get thread_info pointer */ + andl #-THREAD_SIZE,%d1 + movel %d1,%a2 + btst #(TIF_SYSCALL_TRACE%8),%a2@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) + jne do_trace + cmpl #NR_syscalls,%d0 + jcc badsys + lsl #2,%d0 + lea sys_call_table,%a0 + movel %a0@(%d0), %a0 + jbsr %a0@ + movel %d0,%sp@(PT_OFF_D0) /* save the return value*/ + +ret_from_exception: + btst #5,%sp@(PT_OFF_SR) /* check if returning to kernel*/ + jeq Luser_return /* if so, skip resched, signals*/ + +Lkernel_return: + RESTORE_ALL + +Luser_return: + /* only allow interrupts when we are really the last one on the*/ + /* kernel stack, otherwise stack overflow can occur during*/ + /* heavy interrupt load*/ + andw #ALLOWINT,%sr + + movel %sp,%d1 /* get thread_info pointer */ + andl #-THREAD_SIZE,%d1 + movel %d1,%a2 +1: + move %a2@(TI_FLAGS),%d1 /* thread_info->flags */ + jne Lwork_to_do + RESTORE_ALL + +Lwork_to_do: + movel %a2@(TI_FLAGS),%d1 /* thread_info->flags */ + btst #TIF_NEED_RESCHED,%d1 + jne reschedule + +Lsignal_return: + subql #4,%sp /* dummy return address*/ + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + bsrw do_signal + addql #4,%sp + RESTORE_SWITCH_STACK + addql #4,%sp + jra 1b + +/* + * This is the main interrupt handler, responsible for calling do_IRQ() + */ +inthandler: + SAVE_ALL + movew %sp@(PT_OFF_FORMATVEC), %d0 + and.l #0x3ff, %d0 + lsr.l #0x02, %d0 + + movel %sp,%sp@- + movel %d0,%sp@- /* put vector # on stack*/ + jbsr do_IRQ /* process the IRQ*/ +3: addql #8,%sp /* pop parameters off stack*/ + bra ret_from_interrupt + +ret_from_interrupt: + jeq 1f +2: + RESTORE_ALL +1: + moveb %sp@(PT_OFF_SR), %d0 + and #7, %d0 + jhi 2b + /* check if we need to do software interrupts */ + + movel irq_stat+CPUSTAT_SOFTIRQ_PENDING,%d0 + jeq ret_from_exception + + pea ret_from_exception + jra do_softirq + + +/* + * Handler for uninitialized and spurious interrupts. + */ +bad_interrupt: + addql #1,num_spurious + rte + +/* + * Beware - when entering resume, prev (the current task) is + * in a0, next (the new task) is in a1,so don't change these + * registers until their contents are no longer needed. + */ +ENTRY(resume) + movel %a0,%d1 /* save prev thread in d1 */ + movew %sr,%a0@(TASK_THREAD+THREAD_SR) /* save sr */ + movel %usp,%a2 /* save usp */ + movel %a2,%a0@(TASK_THREAD+THREAD_USP) + + SAVE_SWITCH_STACK + movel %sp,%a0@(TASK_THREAD+THREAD_KSP) /* save kernel stack */ + movel %a1@(TASK_THREAD+THREAD_KSP),%sp /* restore new thread stack */ + RESTORE_SWITCH_STACK + + movel %a1@(TASK_THREAD+THREAD_USP),%a0 /* restore user stack */ + movel %a0,%usp + movew %a1@(TASK_THREAD+THREAD_SR),%sr /* restore thread status reg */ + rts + diff --git a/arch/m68k/platform/68360/head-ram.S b/arch/m68k/platform/68360/head-ram.S new file mode 100644 index 000000000000..8eb94fb6b971 --- /dev/null +++ b/arch/m68k/platform/68360/head-ram.S @@ -0,0 +1,403 @@ +/* arch/m68knommu/platform/68360/head-ram.S + * + * Startup code for Motorola 68360 + * + * Copyright 2001 (C) SED Systems, a Division of Calian Ltd. + * Based on: arch/m68knommu/platform/68328/pilot/crt0_rom.S + * Based on: arch/m68knommu/platform/68360/uCquicc/crt0_rom.S, 2.0.38.1.pre7 + * uClinux Kernel + * Copyright (C) Michael Leslie <mleslie@lineo.com> + * Based on: arch/m68knommu/platform/68EZ328/ucsimm/crt0_rom.S + * Copyright (C) 1998 D. Jeff Dionne <jeff@uclinux.org>, + * + */ +#define ASSEMBLY + +.global _stext +.global _start + +.global _rambase +.global _ramvec +.global _ramstart +.global _ramend + +.global _quicc_base +.global _periph_base + +#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE) +#define ROMEND (CONFIG_ROMBASE + CONFIG_ROMSIZE) + +#define REGB 0x1000 +#define PEPAR (_dprbase + REGB + 0x0016) +#define GMR (_dprbase + REGB + 0x0040) +#define OR0 (_dprbase + REGB + 0x0054) +#define BR0 (_dprbase + REGB + 0x0050) +#define OR1 (_dprbase + REGB + 0x0064) +#define BR1 (_dprbase + REGB + 0x0060) +#define OR4 (_dprbase + REGB + 0x0094) +#define BR4 (_dprbase + REGB + 0x0090) +#define OR6 (_dprbase + REGB + 0x00b4) +#define BR6 (_dprbase + REGB + 0x00b0) +#define OR7 (_dprbase + REGB + 0x00c4) +#define BR7 (_dprbase + REGB + 0x00c0) + +#define MCR (_dprbase + REGB + 0x0000) +#define AVR (_dprbase + REGB + 0x0008) + +#define SYPCR (_dprbase + REGB + 0x0022) + +#define PLLCR (_dprbase + REGB + 0x0010) +#define CLKOCR (_dprbase + REGB + 0x000C) +#define CDVCR (_dprbase + REGB + 0x0014) + +#define BKAR (_dprbase + REGB + 0x0030) +#define BKCR (_dprbase + REGB + 0x0034) +#define SWIV (_dprbase + REGB + 0x0023) +#define PICR (_dprbase + REGB + 0x0026) +#define PITR (_dprbase + REGB + 0x002A) + +/* Define for all memory configuration */ +#define MCU_SIM_GMR 0x00000000 +#define SIM_OR_MASK 0x0fffffff + +/* Defines for chip select zero - the flash */ +#define SIM_OR0_MASK 0x20000002 +#define SIM_BR0_MASK 0x00000001 + + +/* Defines for chip select one - the RAM */ +#define SIM_OR1_MASK 0x10000000 +#define SIM_BR1_MASK 0x00000001 + +#define MCU_SIM_MBAR_ADRS 0x0003ff00 +#define MCU_SIM_MBAR_BA_MASK 0xfffff000 +#define MCU_SIM_MBAR_AS_MASK 0x00000001 + +#define MCU_SIM_PEPAR 0x00B4 + +#define MCU_DISABLE_INTRPTS 0x2700 +#define MCU_SIM_AVR 0x00 + +#define MCU_SIM_MCR 0x00005cff + +#define MCU_SIM_CLKOCR 0x00 +#define MCU_SIM_PLLCR 0x8000 +#define MCU_SIM_CDVCR 0x0000 + +#define MCU_SIM_SYPCR 0x0000 +#define MCU_SIM_SWIV 0x00 +#define MCU_SIM_PICR 0x0000 +#define MCU_SIM_PITR 0x0000 + + +#include <asm/m68360_regs.h> + + +/* + * By the time this RAM specific code begins to execute, DPRAM + * and DRAM should already be mapped and accessible. + */ + + .text +_start: +_stext: + nop + ori.w #MCU_DISABLE_INTRPTS, %sr /* disable interrupts: */ + /* We should not need to setup the boot stack the reset should do it. */ + movea.l #RAMEND, %sp /*set up stack at the end of DRAM:*/ + +set_mbar_register: + moveq.l #0x07, %d1 /* Setup MBAR */ + movec %d1, %dfc + + lea.l MCU_SIM_MBAR_ADRS, %a0 + move.l #_dprbase, %d0 + andi.l #MCU_SIM_MBAR_BA_MASK, %d0 + ori.l #MCU_SIM_MBAR_AS_MASK, %d0 + moves.l %d0, %a0@ + + moveq.l #0x05, %d1 + movec.l %d1, %dfc + + /* Now we can begin to access registers in DPRAM */ + +set_sim_mcr: + /* Set Module Configuration Register */ + move.l #MCU_SIM_MCR, MCR + + /* to do: Determine cause of reset */ + + /* + * configure system clock MC68360 p. 6-40 + * (value +1)*osc/128 = system clock + */ +set_sim_clock: + move.w #MCU_SIM_PLLCR, PLLCR + move.b #MCU_SIM_CLKOCR, CLKOCR + move.w #MCU_SIM_CDVCR, CDVCR + + /* Wait for the PLL to settle */ + move.w #16384, %d0 +pll_settle_wait: + subi.w #1, %d0 + bne pll_settle_wait + + /* Setup the system protection register, and watchdog timer register */ + move.b #MCU_SIM_SWIV, SWIV + move.w #MCU_SIM_PICR, PICR + move.w #MCU_SIM_PITR, PITR + move.w #MCU_SIM_SYPCR, SYPCR + + /* Clear DPRAM - system + parameter */ + movea.l #_dprbase, %a0 + movea.l #_dprbase+0x2000, %a1 + + /* Copy 0 to %a0 until %a0 == %a1 */ +clear_dpram: + movel #0, %a0@+ + cmpal %a0, %a1 + bhi clear_dpram + +configure_memory_controller: + /* Set up Global Memory Register (GMR) */ + move.l #MCU_SIM_GMR, %d0 + move.l %d0, GMR + +configure_chip_select_0: + move.l #RAMEND, %d0 + subi.l #__ramstart, %d0 + subq.l #0x01, %d0 + eori.l #SIM_OR_MASK, %d0 + ori.l #SIM_OR0_MASK, %d0 + move.l %d0, OR0 + + move.l #__ramstart, %d0 + ori.l #SIM_BR0_MASK, %d0 + move.l %d0, BR0 + +configure_chip_select_1: + move.l #ROMEND, %d0 + subi.l #__rom_start, %d0 + subq.l #0x01, %d0 + eori.l #SIM_OR_MASK, %d0 + ori.l #SIM_OR1_MASK, %d0 + move.l %d0, OR1 + + move.l #__rom_start, %d0 + ori.l #SIM_BR1_MASK, %d0 + move.l %d0, BR1 + + move.w #MCU_SIM_PEPAR, PEPAR + + /* point to vector table: */ + move.l #_romvec, %a0 + move.l #_ramvec, %a1 +copy_vectors: + move.l %a0@, %d0 + move.l %d0, %a1@ + move.l %a0@, %a1@ + addq.l #0x04, %a0 + addq.l #0x04, %a1 + cmp.l #_start, %a0 + blt copy_vectors + + move.l #_ramvec, %a1 + movec %a1, %vbr + + + /* Copy data segment from ROM to RAM */ + moveal #_stext, %a0 + moveal #_sdata, %a1 + moveal #_edata, %a2 + + /* Copy %a0 to %a1 until %a1 == %a2 */ +LD1: + move.l %a0@, %d0 + addq.l #0x04, %a0 + move.l %d0, %a1@ + addq.l #0x04, %a1 + cmp.l #_edata, %a1 + blt LD1 + + moveal #_sbss, %a0 + moveal #_ebss, %a1 + + /* Copy 0 to %a0 until %a0 == %a1 */ +L1: + movel #0, %a0@+ + cmpal %a0, %a1 + bhi L1 + +load_quicc: + move.l #_dprbase, _quicc_base + +store_ram_size: + /* Set ram size information */ + move.l #_sdata, _rambase + move.l #_ebss, _ramstart + move.l #RAMEND, %d0 + sub.l #0x1000, %d0 /* Reserve 4K for stack space.*/ + move.l %d0, _ramend /* Different from RAMEND.*/ + + pea 0 + pea env + pea %sp@(4) + pea 0 + + lea init_thread_union, %a2 + lea 0x2000(%a2), %sp + +lp: + jsr start_kernel + +_exit: + jmp _exit + + + .data + .align 4 +env: + .long 0 +_quicc_base: + .long 0 +_periph_base: + .long 0 +_ramvec: + .long 0 +_rambase: + .long 0 +_ramstart: + .long 0 +_ramend: + .long 0 +_dprbase: + .long 0xffffe000 + + .text + + /* + * These are the exception vectors at boot up, they are copied into RAM + * and then overwritten as needed. + */ + +.section ".data..initvect","awx" + .long RAMEND /* Reset: Initial Stack Pointer - 0. */ + .long _start /* Reset: Initial Program Counter - 1. */ + .long buserr /* Bus Error - 2. */ + .long trap /* Address Error - 3. */ + .long trap /* Illegal Instruction - 4. */ + .long trap /* Divide by zero - 5. */ + .long trap /* CHK, CHK2 Instructions - 6. */ + .long trap /* TRAPcc, TRAPV Instructions - 7. */ + .long trap /* Privilege Violation - 8. */ + .long trap /* Trace - 9. */ + .long trap /* Line 1010 Emulator - 10. */ + .long trap /* Line 1111 Emualtor - 11. */ + .long trap /* Harware Breakpoint - 12. */ + .long trap /* (Reserved for Coprocessor Protocol Violation)- 13. */ + .long trap /* Format Error - 14. */ + .long trap /* Uninitialized Interrupt - 15. */ + .long trap /* (Unassigned, Reserver) - 16. */ + .long trap /* (Unassigned, Reserver) - 17. */ + .long trap /* (Unassigned, Reserver) - 18. */ + .long trap /* (Unassigned, Reserver) - 19. */ + .long trap /* (Unassigned, Reserver) - 20. */ + .long trap /* (Unassigned, Reserver) - 21. */ + .long trap /* (Unassigned, Reserver) - 22. */ + .long trap /* (Unassigned, Reserver) - 23. */ + .long trap /* Spurious Interrupt - 24. */ + .long trap /* Level 1 Interrupt Autovector - 25. */ + .long trap /* Level 2 Interrupt Autovector - 26. */ + .long trap /* Level 3 Interrupt Autovector - 27. */ + .long trap /* Level 4 Interrupt Autovector - 28. */ + .long trap /* Level 5 Interrupt Autovector - 29. */ + .long trap /* Level 6 Interrupt Autovector - 30. */ + .long trap /* Level 7 Interrupt Autovector - 31. */ + .long system_call /* Trap Instruction Vectors 0 - 32. */ + .long trap /* Trap Instruction Vectors 1 - 33. */ + .long trap /* Trap Instruction Vectors 2 - 34. */ + .long trap /* Trap Instruction Vectors 3 - 35. */ + .long trap /* Trap Instruction Vectors 4 - 36. */ + .long trap /* Trap Instruction Vectors 5 - 37. */ + .long trap /* Trap Instruction Vectors 6 - 38. */ + .long trap /* Trap Instruction Vectors 7 - 39. */ + .long trap /* Trap Instruction Vectors 8 - 40. */ + .long trap /* Trap Instruction Vectors 9 - 41. */ + .long trap /* Trap Instruction Vectors 10 - 42. */ + .long trap /* Trap Instruction Vectors 11 - 43. */ + .long trap /* Trap Instruction Vectors 12 - 44. */ + .long trap /* Trap Instruction Vectors 13 - 45. */ + .long trap /* Trap Instruction Vectors 14 - 46. */ + .long trap /* Trap Instruction Vectors 15 - 47. */ + .long 0 /* (Reserved for Coprocessor) - 48. */ + .long 0 /* (Reserved for Coprocessor) - 49. */ + .long 0 /* (Reserved for Coprocessor) - 50. */ + .long 0 /* (Reserved for Coprocessor) - 51. */ + .long 0 /* (Reserved for Coprocessor) - 52. */ + .long 0 /* (Reserved for Coprocessor) - 53. */ + .long 0 /* (Reserved for Coprocessor) - 54. */ + .long 0 /* (Reserved for Coprocessor) - 55. */ + .long 0 /* (Reserved for Coprocessor) - 56. */ + .long 0 /* (Reserved for Coprocessor) - 57. */ + .long 0 /* (Reserved for Coprocessor) - 58. */ + .long 0 /* (Unassigned, Reserved) - 59. */ + .long 0 /* (Unassigned, Reserved) - 60. */ + .long 0 /* (Unassigned, Reserved) - 61. */ + .long 0 /* (Unassigned, Reserved) - 62. */ + .long 0 /* (Unassigned, Reserved) - 63. */ + /* The assignment of these vectors to the CPM is */ + /* dependent on the configuration of the CPM vba */ + /* fields. */ + .long 0 /* (User-Defined Vectors 1) CPM Error - 64. */ + .long 0 /* (User-Defined Vectors 2) CPM Parallel IO PC11- 65. */ + .long 0 /* (User-Defined Vectors 3) CPM Parallel IO PC10- 66. */ + .long 0 /* (User-Defined Vectors 4) CPM SMC2 / PIP - 67. */ + .long 0 /* (User-Defined Vectors 5) CPM SMC1 - 68. */ + .long 0 /* (User-Defined Vectors 6) CPM SPI - 69. */ + .long 0 /* (User-Defined Vectors 7) CPM Parallel IO PC9 - 70. */ + .long 0 /* (User-Defined Vectors 8) CPM Timer 4 - 71. */ + .long 0 /* (User-Defined Vectors 9) CPM Reserved - 72. */ + .long 0 /* (User-Defined Vectors 10) CPM Parallel IO PC8- 73. */ + .long 0 /* (User-Defined Vectors 11) CPM Parallel IO PC7- 74. */ + .long 0 /* (User-Defined Vectors 12) CPM Parallel IO PC6- 75. */ + .long 0 /* (User-Defined Vectors 13) CPM Timer 3 - 76. */ + .long 0 /* (User-Defined Vectors 14) CPM Reserved - 77. */ + .long 0 /* (User-Defined Vectors 15) CPM Parallel IO PC5- 78. */ + .long 0 /* (User-Defined Vectors 16) CPM Parallel IO PC4- 79. */ + .long 0 /* (User-Defined Vectors 17) CPM Reserved - 80. */ + .long 0 /* (User-Defined Vectors 18) CPM RISC Timer Tbl - 81. */ + .long 0 /* (User-Defined Vectors 19) CPM Timer 2 - 82. */ + .long 0 /* (User-Defined Vectors 21) CPM Reserved - 83. */ + .long 0 /* (User-Defined Vectors 22) CPM IDMA2 - 84. */ + .long 0 /* (User-Defined Vectors 23) CPM IDMA1 - 85. */ + .long 0 /* (User-Defined Vectors 24) CPM SDMA Bus Err - 86. */ + .long 0 /* (User-Defined Vectors 25) CPM Parallel IO PC3- 87. */ + .long 0 /* (User-Defined Vectors 26) CPM Parallel IO PC2- 88. */ + .long 0 /* (User-Defined Vectors 27) CPM Timer 1 - 89. */ + .long 0 /* (User-Defined Vectors 28) CPM Parallel IO PC1- 90. */ + .long 0 /* (User-Defined Vectors 29) CPM SCC 4 - 91. */ + .long 0 /* (User-Defined Vectors 30) CPM SCC 3 - 92. */ + .long 0 /* (User-Defined Vectors 31) CPM SCC 2 - 93. */ + .long 0 /* (User-Defined Vectors 32) CPM SCC 1 - 94. */ + .long 0 /* (User-Defined Vectors 33) CPM Parallel IO PC0- 95. */ + /* I don't think anything uses the vectors after here. */ + .long 0 /* (User-Defined Vectors 34) - 96. */ + .long 0,0,0,0,0 /* (User-Defined Vectors 35 - 39). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 40 - 49). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 50 - 59). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 60 - 69). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 70 - 79). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 80 - 89). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 90 - 99). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 100 - 109). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 110 - 119). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 120 - 129). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 130 - 139). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 140 - 149). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 150 - 159). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 160 - 169). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 170 - 179). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 180 - 189). */ + .long 0,0,0 /* (User-Defined Vectors 190 - 192). */ +.text +ignore: rte diff --git a/arch/m68k/platform/68360/head-rom.S b/arch/m68k/platform/68360/head-rom.S new file mode 100644 index 000000000000..97510e55b802 --- /dev/null +++ b/arch/m68k/platform/68360/head-rom.S @@ -0,0 +1,414 @@ +/* arch/m68knommu/platform/68360/head-rom.S + * + * Startup code for Motorola 68360 + * + * Copyright (C) SED Systems, a Division of Calian Ltd. + * Based on: arch/m68knommu/platform/68328/pilot/crt0_rom.S + * Based on: arch/m68knommu/platform/68360/uCquicc/crt0_rom.S, 2.0.38.1.pre7 + * uClinux Kernel + * Copyright (C) Michael Leslie <mleslie@lineo.com> + * Based on: arch/m68knommu/platform/68EZ328/ucsimm/crt0_rom.S + * Copyright (C) 1998 D. Jeff Dionne <jeff@uclinux.org>, + * + */ + +.global _stext +.global _sbss +.global _start + +.global _rambase +.global _ramvec +.global _ramstart +.global _ramend + +.global _quicc_base +.global _periph_base + +#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE) + +#define REGB 0x1000 +#define PEPAR (_dprbase + REGB + 0x0016) +#define GMR (_dprbase + REGB + 0x0040) +#define OR0 (_dprbase + REGB + 0x0054) +#define BR0 (_dprbase + REGB + 0x0050) + +#define OR1 (_dprbase + REGB + 0x0064) +#define BR1 (_dprbase + REGB + 0x0060) + +#define OR2 (_dprbase + REGB + 0x0074) +#define BR2 (_dprbase + REGB + 0x0070) + +#define OR3 (_dprbase + REGB + 0x0084) +#define BR3 (_dprbase + REGB + 0x0080) + +#define OR4 (_dprbase + REGB + 0x0094) +#define BR4 (_dprbase + REGB + 0x0090) + +#define OR5 (_dprbase + REGB + 0x00A4) +#define BR5 (_dprbase + REGB + 0x00A0) + +#define OR6 (_dprbase + REGB + 0x00b4) +#define BR6 (_dprbase + REGB + 0x00b0) + +#define OR7 (_dprbase + REGB + 0x00c4) +#define BR7 (_dprbase + REGB + 0x00c0) + +#define MCR (_dprbase + REGB + 0x0000) +#define AVR (_dprbase + REGB + 0x0008) + +#define SYPCR (_dprbase + REGB + 0x0022) + +#define PLLCR (_dprbase + REGB + 0x0010) +#define CLKOCR (_dprbase + REGB + 0x000C) +#define CDVCR (_dprbase + REGB + 0x0014) + +#define BKAR (_dprbase + REGB + 0x0030) +#define BKCR (_dprbase + REGB + 0x0034) +#define SWIV (_dprbase + REGB + 0x0023) +#define PICR (_dprbase + REGB + 0x0026) +#define PITR (_dprbase + REGB + 0x002A) + +/* Define for all memory configuration */ +#define MCU_SIM_GMR 0x00000000 +#define SIM_OR_MASK 0x0fffffff + +/* Defines for chip select zero - the flash */ +#define SIM_OR0_MASK 0x20000000 +#define SIM_BR0_MASK 0x00000001 + +/* Defines for chip select one - the RAM */ +#define SIM_OR1_MASK 0x10000000 +#define SIM_BR1_MASK 0x00000001 + +#define MCU_SIM_MBAR_ADRS 0x0003ff00 +#define MCU_SIM_MBAR_BA_MASK 0xfffff000 +#define MCU_SIM_MBAR_AS_MASK 0x00000001 + +#define MCU_SIM_PEPAR 0x00B4 + +#define MCU_DISABLE_INTRPTS 0x2700 +#define MCU_SIM_AVR 0x00 + +#define MCU_SIM_MCR 0x00005cff + +#define MCU_SIM_CLKOCR 0x00 +#define MCU_SIM_PLLCR 0x8000 +#define MCU_SIM_CDVCR 0x0000 + +#define MCU_SIM_SYPCR 0x0000 +#define MCU_SIM_SWIV 0x00 +#define MCU_SIM_PICR 0x0000 +#define MCU_SIM_PITR 0x0000 + + +#include <asm/m68360_regs.h> + + +/* + * By the time this RAM specific code begins to execute, DPRAM + * and DRAM should already be mapped and accessible. + */ + + .text +_start: +_stext: + nop + ori.w #MCU_DISABLE_INTRPTS, %sr /* disable interrupts: */ + /* We should not need to setup the boot stack the reset should do it. */ + movea.l #RAMEND, %sp /* set up stack at the end of DRAM:*/ + + +set_mbar_register: + moveq.l #0x07, %d1 /* Setup MBAR */ + movec %d1, %dfc + + lea.l MCU_SIM_MBAR_ADRS, %a0 + move.l #_dprbase, %d0 + andi.l #MCU_SIM_MBAR_BA_MASK, %d0 + ori.l #MCU_SIM_MBAR_AS_MASK, %d0 + moves.l %d0, %a0@ + + moveq.l #0x05, %d1 + movec.l %d1, %dfc + + /* Now we can begin to access registers in DPRAM */ + +set_sim_mcr: + /* Set Module Configuration Register */ + move.l #MCU_SIM_MCR, MCR + + /* to do: Determine cause of reset */ + + /* + * configure system clock MC68360 p. 6-40 + * (value +1)*osc/128 = system clock + * or + * (value + 1)*osc = system clock + * You do not need to divide the oscillator by 128 unless you want to. + */ +set_sim_clock: + move.w #MCU_SIM_PLLCR, PLLCR + move.b #MCU_SIM_CLKOCR, CLKOCR + move.w #MCU_SIM_CDVCR, CDVCR + + /* Wait for the PLL to settle */ + move.w #16384, %d0 +pll_settle_wait: + subi.w #1, %d0 + bne pll_settle_wait + + /* Setup the system protection register, and watchdog timer register */ + move.b #MCU_SIM_SWIV, SWIV + move.w #MCU_SIM_PICR, PICR + move.w #MCU_SIM_PITR, PITR + move.w #MCU_SIM_SYPCR, SYPCR + + /* Clear DPRAM - system + parameter */ + movea.l #_dprbase, %a0 + movea.l #_dprbase+0x2000, %a1 + + /* Copy 0 to %a0 until %a0 == %a1 */ +clear_dpram: + movel #0, %a0@+ + cmpal %a0, %a1 + bhi clear_dpram + +configure_memory_controller: + /* Set up Global Memory Register (GMR) */ + move.l #MCU_SIM_GMR, %d0 + move.l %d0, GMR + +configure_chip_select_0: + move.l #0x00400000, %d0 + subq.l #0x01, %d0 + eori.l #SIM_OR_MASK, %d0 + ori.l #SIM_OR0_MASK, %d0 + move.l %d0, OR0 + + move.l #__rom_start, %d0 + ori.l #SIM_BR0_MASK, %d0 + move.l %d0, BR0 + + move.l #0x0, BR1 + move.l #0x0, BR2 + move.l #0x0, BR3 + move.l #0x0, BR4 + move.l #0x0, BR5 + move.l #0x0, BR6 + move.l #0x0, BR7 + + move.w #MCU_SIM_PEPAR, PEPAR + + /* point to vector table: */ + move.l #_romvec, %a0 + move.l #_ramvec, %a1 +copy_vectors: + move.l %a0@, %d0 + move.l %d0, %a1@ + move.l %a0@, %a1@ + addq.l #0x04, %a0 + addq.l #0x04, %a1 + cmp.l #_start, %a0 + blt copy_vectors + + move.l #_ramvec, %a1 + movec %a1, %vbr + + + /* Copy data segment from ROM to RAM */ + moveal #_etext, %a0 + moveal #_sdata, %a1 + moveal #_edata, %a2 + + /* Copy %a0 to %a1 until %a1 == %a2 */ +LD1: + move.l %a0@, %d0 + addq.l #0x04, %a0 + move.l %d0, %a1@ + addq.l #0x04, %a1 + cmp.l #_edata, %a1 + blt LD1 + + moveal #_sbss, %a0 + moveal #_ebss, %a1 + + /* Copy 0 to %a0 until %a0 == %a1 */ +L1: + movel #0, %a0@+ + cmpal %a0, %a1 + bhi L1 + +load_quicc: + move.l #_dprbase, _quicc_base + +store_ram_size: + /* Set ram size information */ + move.l #_sdata, _rambase + move.l #_ebss, _ramstart + move.l #RAMEND, %d0 + sub.l #0x1000, %d0 /* Reserve 4K for stack space.*/ + move.l %d0, _ramend /* Different from RAMEND.*/ + + pea 0 + pea env + pea %sp@(4) + pea 0 + + lea init_thread_union, %a2 + lea 0x2000(%a2), %sp + +lp: + jsr start_kernel + +_exit: + jmp _exit + + + .data + .align 4 +env: + .long 0 +_quicc_base: + .long 0 +_periph_base: + .long 0 +_ramvec: + .long 0 +_rambase: + .long 0 +_ramstart: + .long 0 +_ramend: + .long 0 +_dprbase: + .long 0xffffe000 + + + .text + + /* + * These are the exception vectors at boot up, they are copied into RAM + * and then overwritten as needed. + */ + +.section ".data..initvect","awx" + .long RAMEND /* Reset: Initial Stack Pointer - 0. */ + .long _start /* Reset: Initial Program Counter - 1. */ + .long buserr /* Bus Error - 2. */ + .long trap /* Address Error - 3. */ + .long trap /* Illegal Instruction - 4. */ + .long trap /* Divide by zero - 5. */ + .long trap /* CHK, CHK2 Instructions - 6. */ + .long trap /* TRAPcc, TRAPV Instructions - 7. */ + .long trap /* Privilege Violation - 8. */ + .long trap /* Trace - 9. */ + .long trap /* Line 1010 Emulator - 10. */ + .long trap /* Line 1111 Emualtor - 11. */ + .long trap /* Harware Breakpoint - 12. */ + .long trap /* (Reserved for Coprocessor Protocol Violation)- 13. */ + .long trap /* Format Error - 14. */ + .long trap /* Uninitialized Interrupt - 15. */ + .long trap /* (Unassigned, Reserver) - 16. */ + .long trap /* (Unassigned, Reserver) - 17. */ + .long trap /* (Unassigned, Reserver) - 18. */ + .long trap /* (Unassigned, Reserver) - 19. */ + .long trap /* (Unassigned, Reserver) - 20. */ + .long trap /* (Unassigned, Reserver) - 21. */ + .long trap /* (Unassigned, Reserver) - 22. */ + .long trap /* (Unassigned, Reserver) - 23. */ + .long trap /* Spurious Interrupt - 24. */ + .long trap /* Level 1 Interrupt Autovector - 25. */ + .long trap /* Level 2 Interrupt Autovector - 26. */ + .long trap /* Level 3 Interrupt Autovector - 27. */ + .long trap /* Level 4 Interrupt Autovector - 28. */ + .long trap /* Level 5 Interrupt Autovector - 29. */ + .long trap /* Level 6 Interrupt Autovector - 30. */ + .long trap /* Level 7 Interrupt Autovector - 31. */ + .long system_call /* Trap Instruction Vectors 0 - 32. */ + .long trap /* Trap Instruction Vectors 1 - 33. */ + .long trap /* Trap Instruction Vectors 2 - 34. */ + .long trap /* Trap Instruction Vectors 3 - 35. */ + .long trap /* Trap Instruction Vectors 4 - 36. */ + .long trap /* Trap Instruction Vectors 5 - 37. */ + .long trap /* Trap Instruction Vectors 6 - 38. */ + .long trap /* Trap Instruction Vectors 7 - 39. */ + .long trap /* Trap Instruction Vectors 8 - 40. */ + .long trap /* Trap Instruction Vectors 9 - 41. */ + .long trap /* Trap Instruction Vectors 10 - 42. */ + .long trap /* Trap Instruction Vectors 11 - 43. */ + .long trap /* Trap Instruction Vectors 12 - 44. */ + .long trap /* Trap Instruction Vectors 13 - 45. */ + .long trap /* Trap Instruction Vectors 14 - 46. */ + .long trap /* Trap Instruction Vectors 15 - 47. */ + .long 0 /* (Reserved for Coprocessor) - 48. */ + .long 0 /* (Reserved for Coprocessor) - 49. */ + .long 0 /* (Reserved for Coprocessor) - 50. */ + .long 0 /* (Reserved for Coprocessor) - 51. */ + .long 0 /* (Reserved for Coprocessor) - 52. */ + .long 0 /* (Reserved for Coprocessor) - 53. */ + .long 0 /* (Reserved for Coprocessor) - 54. */ + .long 0 /* (Reserved for Coprocessor) - 55. */ + .long 0 /* (Reserved for Coprocessor) - 56. */ + .long 0 /* (Reserved for Coprocessor) - 57. */ + .long 0 /* (Reserved for Coprocessor) - 58. */ + .long 0 /* (Unassigned, Reserved) - 59. */ + .long 0 /* (Unassigned, Reserved) - 60. */ + .long 0 /* (Unassigned, Reserved) - 61. */ + .long 0 /* (Unassigned, Reserved) - 62. */ + .long 0 /* (Unassigned, Reserved) - 63. */ + /* The assignment of these vectors to the CPM is */ + /* dependent on the configuration of the CPM vba */ + /* fields. */ + .long 0 /* (User-Defined Vectors 1) CPM Error - 64. */ + .long 0 /* (User-Defined Vectors 2) CPM Parallel IO PC11- 65. */ + .long 0 /* (User-Defined Vectors 3) CPM Parallel IO PC10- 66. */ + .long 0 /* (User-Defined Vectors 4) CPM SMC2 / PIP - 67. */ + .long 0 /* (User-Defined Vectors 5) CPM SMC1 - 68. */ + .long 0 /* (User-Defined Vectors 6) CPM SPI - 69. */ + .long 0 /* (User-Defined Vectors 7) CPM Parallel IO PC9 - 70. */ + .long 0 /* (User-Defined Vectors 8) CPM Timer 4 - 71. */ + .long 0 /* (User-Defined Vectors 9) CPM Reserved - 72. */ + .long 0 /* (User-Defined Vectors 10) CPM Parallel IO PC8- 73. */ + .long 0 /* (User-Defined Vectors 11) CPM Parallel IO PC7- 74. */ + .long 0 /* (User-Defined Vectors 12) CPM Parallel IO PC6- 75. */ + .long 0 /* (User-Defined Vectors 13) CPM Timer 3 - 76. */ + .long 0 /* (User-Defined Vectors 14) CPM Reserved - 77. */ + .long 0 /* (User-Defined Vectors 15) CPM Parallel IO PC5- 78. */ + .long 0 /* (User-Defined Vectors 16) CPM Parallel IO PC4- 79. */ + .long 0 /* (User-Defined Vectors 17) CPM Reserved - 80. */ + .long 0 /* (User-Defined Vectors 18) CPM RISC Timer Tbl - 81. */ + .long 0 /* (User-Defined Vectors 19) CPM Timer 2 - 82. */ + .long 0 /* (User-Defined Vectors 21) CPM Reserved - 83. */ + .long 0 /* (User-Defined Vectors 22) CPM IDMA2 - 84. */ + .long 0 /* (User-Defined Vectors 23) CPM IDMA1 - 85. */ + .long 0 /* (User-Defined Vectors 24) CPM SDMA Bus Err - 86. */ + .long 0 /* (User-Defined Vectors 25) CPM Parallel IO PC3- 87. */ + .long 0 /* (User-Defined Vectors 26) CPM Parallel IO PC2- 88. */ + .long 0 /* (User-Defined Vectors 27) CPM Timer 1 - 89. */ + .long 0 /* (User-Defined Vectors 28) CPM Parallel IO PC1- 90. */ + .long 0 /* (User-Defined Vectors 29) CPM SCC 4 - 91. */ + .long 0 /* (User-Defined Vectors 30) CPM SCC 3 - 92. */ + .long 0 /* (User-Defined Vectors 31) CPM SCC 2 - 93. */ + .long 0 /* (User-Defined Vectors 32) CPM SCC 1 - 94. */ + .long 0 /* (User-Defined Vectors 33) CPM Parallel IO PC0- 95. */ + /* I don't think anything uses the vectors after here. */ + .long 0 /* (User-Defined Vectors 34) - 96. */ + .long 0,0,0,0,0 /* (User-Defined Vectors 35 - 39). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 40 - 49). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 50 - 59). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 60 - 69). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 70 - 79). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 80 - 89). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 90 - 99). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 100 - 109). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 110 - 119). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 120 - 129). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 130 - 139). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 140 - 149). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 150 - 159). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 160 - 169). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 170 - 179). */ + .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 180 - 189). */ + .long 0,0,0 /* (User-Defined Vectors 190 - 192). */ +.text +ignore: rte diff --git a/arch/m68k/platform/68360/ints.c b/arch/m68k/platform/68360/ints.c new file mode 100644 index 000000000000..8de3feb568c6 --- /dev/null +++ b/arch/m68k/platform/68360/ints.c @@ -0,0 +1,139 @@ +/* + * linux/arch/$(ARCH)/platform/$(PLATFORM)/ints.c + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Copyright (c) 2000 Michael Leslie <mleslie@lineo.com> + * Copyright (c) 1996 Roman Zippel + * Copyright (c) 1999 D. Jeff Dionne <jeff@uclinux.org> + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include <asm/m68360.h> + +/* from quicc/commproc.c: */ +extern QUICC *pquicc; +extern void cpm_interrupt_init(void); + +#define INTERNAL_IRQS (96) + +/* assembler routines */ +asmlinkage void system_call(void); +asmlinkage void buserr(void); +asmlinkage void trap(void); +asmlinkage void bad_interrupt(void); +asmlinkage void inthandler(void); + +extern void *_ramvec[]; + +/* The number of spurious interrupts */ +volatile unsigned int num_spurious; + +static void intc_irq_unmask(struct irq_data *d) +{ + pquicc->intr_cimr |= (1 << d->irq); +} + +static void intc_irq_mask(struct irq_data *d) +{ + pquicc->intr_cimr &= ~(1 << d->irq); +} + +static void intc_irq_ack(struct irq_data *d) +{ + pquicc->intr_cisr = (1 << d->irq); +} + +static struct irq_chip intc_irq_chip = { + .name = "M68K-INTC", + .irq_mask = intc_irq_mask, + .irq_unmask = intc_irq_unmask, + .irq_ack = intc_irq_ack, +}; + +/* + * This function should be called during kernel startup to initialize + * the vector table. + */ +void init_IRQ(void) +{ + int i; + int vba = (CPM_VECTOR_BASE<<4); + + /* set up the vectors */ + _ramvec[2] = buserr; + _ramvec[3] = trap; + _ramvec[4] = trap; + _ramvec[5] = trap; + _ramvec[6] = trap; + _ramvec[7] = trap; + _ramvec[8] = trap; + _ramvec[9] = trap; + _ramvec[10] = trap; + _ramvec[11] = trap; + _ramvec[12] = trap; + _ramvec[13] = trap; + _ramvec[14] = trap; + _ramvec[15] = trap; + + _ramvec[32] = system_call; + _ramvec[33] = trap; + + cpm_interrupt_init(); + + /* set up CICR for vector base address and irq level */ + /* irl = 4, hp = 1f - see MC68360UM p 7-377 */ + pquicc->intr_cicr = 0x00e49f00 | vba; + + /* CPM interrupt vectors: (p 7-376) */ + _ramvec[vba+CPMVEC_ERROR] = bad_interrupt; /* Error */ + _ramvec[vba+CPMVEC_PIO_PC11] = inthandler; /* pio - pc11 */ + _ramvec[vba+CPMVEC_PIO_PC10] = inthandler; /* pio - pc10 */ + _ramvec[vba+CPMVEC_SMC2] = inthandler; /* smc2/pip */ + _ramvec[vba+CPMVEC_SMC1] = inthandler; /* smc1 */ + _ramvec[vba+CPMVEC_SPI] = inthandler; /* spi */ + _ramvec[vba+CPMVEC_PIO_PC9] = inthandler; /* pio - pc9 */ + _ramvec[vba+CPMVEC_TIMER4] = inthandler; /* timer 4 */ + _ramvec[vba+CPMVEC_RESERVED1] = inthandler; /* reserved */ + _ramvec[vba+CPMVEC_PIO_PC8] = inthandler; /* pio - pc8 */ + _ramvec[vba+CPMVEC_PIO_PC7] = inthandler; /* pio - pc7 */ + _ramvec[vba+CPMVEC_PIO_PC6] = inthandler; /* pio - pc6 */ + _ramvec[vba+CPMVEC_TIMER3] = inthandler; /* timer 3 */ + _ramvec[vba+CPMVEC_PIO_PC5] = inthandler; /* pio - pc5 */ + _ramvec[vba+CPMVEC_PIO_PC4] = inthandler; /* pio - pc4 */ + _ramvec[vba+CPMVEC_RESERVED2] = inthandler; /* reserved */ + _ramvec[vba+CPMVEC_RISCTIMER] = inthandler; /* timer table */ + _ramvec[vba+CPMVEC_TIMER2] = inthandler; /* timer 2 */ + _ramvec[vba+CPMVEC_RESERVED3] = inthandler; /* reserved */ + _ramvec[vba+CPMVEC_IDMA2] = inthandler; /* idma 2 */ + _ramvec[vba+CPMVEC_IDMA1] = inthandler; /* idma 1 */ + _ramvec[vba+CPMVEC_SDMA_CB_ERR] = inthandler; /* sdma channel bus error */ + _ramvec[vba+CPMVEC_PIO_PC3] = inthandler; /* pio - pc3 */ + _ramvec[vba+CPMVEC_PIO_PC2] = inthandler; /* pio - pc2 */ + /* _ramvec[vba+CPMVEC_TIMER1] = cpm_isr_timer1; */ /* timer 1 */ + _ramvec[vba+CPMVEC_TIMER1] = inthandler; /* timer 1 */ + _ramvec[vba+CPMVEC_PIO_PC1] = inthandler; /* pio - pc1 */ + _ramvec[vba+CPMVEC_SCC4] = inthandler; /* scc 4 */ + _ramvec[vba+CPMVEC_SCC3] = inthandler; /* scc 3 */ + _ramvec[vba+CPMVEC_SCC2] = inthandler; /* scc 2 */ + _ramvec[vba+CPMVEC_SCC1] = inthandler; /* scc 1 */ + _ramvec[vba+CPMVEC_PIO_PC0] = inthandler; /* pio - pc0 */ + + + /* turn off all CPM interrupts */ + pquicc->intr_cimr = 0x00000000; + + for (i = 0; (i < NR_IRQS); i++) { + set_irq_chip(i, &intc_irq_chip); + set_irq_handler(i, handle_level_irq); + } +} + diff --git a/arch/m68k/platform/68EZ328/Makefile b/arch/m68k/platform/68EZ328/Makefile new file mode 100644 index 000000000000..ee97735a242c --- /dev/null +++ b/arch/m68k/platform/68EZ328/Makefile @@ -0,0 +1,11 @@ +# +# Makefile for arch/m68knommu/platform/68EZ328. +# + +obj-y := config.o + +extra-y := bootlogo.rh + +$(obj)/bootlogo.rh: $(src)/bootlogo.h + perl $(src)/../68328/bootlogo.pl < $(src)/bootlogo.h \ + > $(obj)/bootlogo.rh diff --git a/arch/m68k/platform/68EZ328/bootlogo.h b/arch/m68k/platform/68EZ328/bootlogo.h new file mode 100644 index 000000000000..e842bdae5839 --- /dev/null +++ b/arch/m68k/platform/68EZ328/bootlogo.h @@ -0,0 +1,3204 @@ +#define splash_width 640 +#define splash_height 480 +static unsigned char splash_bits[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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+/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/68EZ328/config.c + * + * Copyright (C) 1993 Hamish Macdonald + * Copyright (C) 1999 D. Jeff Dionne + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +/***************************************************************************/ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/machdep.h> +#include <asm/MC68EZ328.h> +#ifdef CONFIG_UCSIMM +#include <asm/bootstd.h> +#endif + +/***************************************************************************/ + +void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec); + +/***************************************************************************/ + +void m68ez328_reset(void) +{ + local_irq_disable(); + asm volatile ( + "moveal #0x10c00000, %a0;\n" + "moveb #0, 0xFFFFF300;\n" + "moveal 0(%a0), %sp;\n" + "moveal 4(%a0), %a0;\n" + "jmp (%a0);\n" + ); +} + +/***************************************************************************/ + +unsigned char *cs8900a_hwaddr; +static int errno; + +#ifdef CONFIG_UCSIMM +_bsc0(char *, getserialnum) +_bsc1(unsigned char *, gethwaddr, int, a) +_bsc1(char *, getbenv, char *, a) +#endif + +void config_BSP(char *command, int len) +{ + unsigned char *p; + + printk(KERN_INFO "\n68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n"); + +#ifdef CONFIG_UCSIMM + printk(KERN_INFO "uCsimm serial string [%s]\n",getserialnum()); + p = cs8900a_hwaddr = gethwaddr(0); + printk(KERN_INFO "uCsimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", + p[0], p[1], p[2], p[3], p[4], p[5]); + + p = getbenv("APPEND"); + if (p) strcpy(p,command); + else command[0] = 0; +#endif + + mach_gettod = m68328_timer_gettod; + mach_reset = m68ez328_reset; +} + +/***************************************************************************/ diff --git a/arch/m68k/platform/68VZ328/Makefile b/arch/m68k/platform/68VZ328/Makefile new file mode 100644 index 000000000000..447ffa0fd7c7 --- /dev/null +++ b/arch/m68k/platform/68VZ328/Makefile @@ -0,0 +1,16 @@ +# +# Makefile for arch/m68knommu/platform/68VZ328. +# + +obj-y := config.o +logo-$(UCDIMM) := bootlogo.rh +logo-$(DRAGEN2) := screen.h +extra-y := $(logo-y) + +$(obj)/bootlogo.rh: $(src)/../68EZ328/bootlogo.h + perl $(src)/bootlogo.pl < $(src)/../68328/bootlogo.h > $(obj)/bootlogo.rh + +$(obj)/screen.h: $(src)/screen.xbm $(src)/xbm2lcd.pl + perl $(src)/xbm2lcd.pl < $(src)/screen.xbm > $(obj)/screen.h + +clean-files := $(obj)/screen.h $(obj)/bootlogo.rh diff --git a/arch/m68k/platform/68VZ328/config.c b/arch/m68k/platform/68VZ328/config.c new file mode 100644 index 000000000000..eabaabe8af36 --- /dev/null +++ b/arch/m68k/platform/68VZ328/config.c @@ -0,0 +1,188 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/68VZ328/config.c + * + * Copyright (C) 1993 Hamish Macdonald + * Copyright (C) 1999 D. Jeff Dionne + * Copyright (C) 2001 Georges Menie, Ken Desmet + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +/***************************************************************************/ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/kd.h> +#include <linux/netdevice.h> +#include <linux/interrupt.h> +#include <linux/irq.h> + +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/machdep.h> +#include <asm/MC68VZ328.h> +#include <asm/bootstd.h> + +#ifdef CONFIG_INIT_LCD +#include "bootlogo.h" +#endif + +/***************************************************************************/ + +void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec); + +/***************************************************************************/ +/* Init Drangon Engine hardware */ +/***************************************************************************/ +#if defined(CONFIG_DRAGEN2) + +static void m68vz328_reset(void) +{ + local_irq_disable(); + +#ifdef CONFIG_INIT_LCD + PBDATA |= 0x20; /* disable CCFL light */ + PKDATA |= 0x4; /* disable LCD controller */ + LCKCON = 0; +#endif + + __asm__ __volatile__( + "reset\n\t" + "moveal #0x04000000, %a0\n\t" + "moveal 0(%a0), %sp\n\t" + "moveal 4(%a0), %a0\n\t" + "jmp (%a0)" + ); +} + +static void init_hardware(char *command, int size) +{ +#ifdef CONFIG_DIRECT_IO_ACCESS + SCR = 0x10; /* allow user access to internal registers */ +#endif + + /* CSGB Init */ + CSGBB = 0x4000; + CSB = 0x1a1; + + /* CS8900 init */ + /* PK3: hardware sleep function pin, active low */ + PKSEL |= PK(3); /* select pin as I/O */ + PKDIR |= PK(3); /* select pin as output */ + PKDATA |= PK(3); /* set pin high */ + + /* PF5: hardware reset function pin, active high */ + PFSEL |= PF(5); /* select pin as I/O */ + PFDIR |= PF(5); /* select pin as output */ + PFDATA &= ~PF(5); /* set pin low */ + + /* cs8900 hardware reset */ + PFDATA |= PF(5); + { int i; for (i = 0; i < 32000; ++i); } + PFDATA &= ~PF(5); + + /* INT1 enable (cs8900 IRQ) */ + PDPOL &= ~PD(1); /* active high signal */ + PDIQEG &= ~PD(1); + PDIRQEN |= PD(1); /* IRQ enabled */ + +#ifdef CONFIG_INIT_LCD + /* initialize LCD controller */ + LSSA = (long) screen_bits; + LVPW = 0x14; + LXMAX = 0x140; + LYMAX = 0xef; + LRRA = 0; + LPXCD = 3; + LPICF = 0x08; + LPOLCF = 0; + LCKCON = 0x80; + PCPDEN = 0xff; + PCSEL = 0; + + /* Enable LCD controller */ + PKDIR |= 0x4; + PKSEL |= 0x4; + PKDATA &= ~0x4; + + /* Enable CCFL backlighting circuit */ + PBDIR |= 0x20; + PBSEL |= 0x20; + PBDATA &= ~0x20; + + /* contrast control register */ + PFDIR |= 0x1; + PFSEL &= ~0x1; + PWMR = 0x037F; +#endif +} + +/***************************************************************************/ +/* Init RT-Control uCdimm hardware */ +/***************************************************************************/ +#elif defined(CONFIG_UCDIMM) + +static void m68vz328_reset(void) +{ + local_irq_disable(); + asm volatile ( + "moveal #0x10c00000, %a0;\n\t" + "moveb #0, 0xFFFFF300;\n\t" + "moveal 0(%a0), %sp;\n\t" + "moveal 4(%a0), %a0;\n\t" + "jmp (%a0);\n" + ); +} + +unsigned char *cs8900a_hwaddr; +static int errno; + +_bsc0(char *, getserialnum) +_bsc1(unsigned char *, gethwaddr, int, a) +_bsc1(char *, getbenv, char *, a) + +static void init_hardware(char *command, int size) +{ + char *p; + + printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum()); + p = cs8900a_hwaddr = gethwaddr(0); + printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", + p[0], p[1], p[2], p[3], p[4], p[5]); + p = getbenv("APPEND"); + if (p) + strcpy(p, command); + else + command[0] = 0; +} + +/***************************************************************************/ +#else + +static void m68vz328_reset(void) +{ +} + +static void init_hardware(char *command, int size) +{ +} + +/***************************************************************************/ +#endif +/***************************************************************************/ + +void config_BSP(char *command, int size) +{ + printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n"); + + init_hardware(command, size); + + mach_gettod = m68328_timer_gettod; + mach_reset = m68vz328_reset; +} + +/***************************************************************************/ diff --git a/arch/m68k/platform/Makefile b/arch/m68k/platform/Makefile new file mode 100644 index 000000000000..fc932bf65d34 --- /dev/null +++ b/arch/m68k/platform/Makefile @@ -0,0 +1,3 @@ +# +# Makefile for the arch/m68knommu/platform. +# diff --git a/arch/m68k/platform/coldfire/Makefile b/arch/m68k/platform/coldfire/Makefile new file mode 100644 index 000000000000..a8967baabd72 --- /dev/null +++ b/arch/m68k/platform/coldfire/Makefile @@ -0,0 +1,32 @@ +# +# Makefile for the m68knommu kernel. +# + +# +# If you want to play with the HW breakpoints then you will +# need to add define this, which will give you a stack backtrace +# on the console port whenever a DBG interrupt occurs. You have to +# set up you HW breakpoints to trigger a DBG interrupt: +# +# ccflags-y := -DTRAP_DBG_INTERRUPT +# asflags-y := -DTRAP_DBG_INTERRUPT +# + +asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 + +obj-$(CONFIG_COLDFIRE) += cache.o clk.o dma.o entry.o vectors.o +obj-$(CONFIG_M5206) += timers.o intc.o +obj-$(CONFIG_M5206e) += timers.o intc.o +obj-$(CONFIG_M520x) += pit.o intc-simr.o +obj-$(CONFIG_M523x) += pit.o dma_timer.o intc-2.o +obj-$(CONFIG_M5249) += timers.o intc.o +obj-$(CONFIG_M527x) += pit.o intc-2.o +obj-$(CONFIG_M5272) += timers.o +obj-$(CONFIG_M528x) += pit.o intc-2.o +obj-$(CONFIG_M5307) += timers.o intc.o +obj-$(CONFIG_M532x) += timers.o intc-simr.o +obj-$(CONFIG_M5407) += timers.o intc.o +obj-$(CONFIG_M54xx) += sltimers.o intc-2.o + +obj-y += pinmux.o gpio.o +extra-y := head.o diff --git a/arch/m68k/platform/coldfire/cache.c b/arch/m68k/platform/coldfire/cache.c new file mode 100644 index 000000000000..235d3c4f4f0f --- /dev/null +++ b/arch/m68k/platform/coldfire/cache.c @@ -0,0 +1,48 @@ +/***************************************************************************/ + +/* + * cache.c -- general ColdFire Cache maintainence code + * + * Copyright (C) 2010, Greg Ungerer (gerg@snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> + +/***************************************************************************/ +#ifdef CACHE_PUSH +/***************************************************************************/ + +/* + * Use cpushl to push all dirty cache lines back to memory. + * Older versions of GAS don't seem to know how to generate the + * ColdFire cpushl instruction... Oh well, bit stuff it for now. + */ + +void mcf_cache_push(void) +{ + __asm__ __volatile__ ( + "clrl %%d0\n\t" + "1:\n\t" + "movel %%d0,%%a0\n\t" + "2:\n\t" + ".word 0xf468\n\t" + "addl %0,%%a0\n\t" + "cmpl %1,%%a0\n\t" + "blt 2b\n\t" + "addql #1,%%d0\n\t" + "cmpil %2,%%d0\n\t" + "bne 1b\n\t" + : /* No output */ + : "i" (CACHE_LINE_SIZE), + "i" (DCACHE_SIZE / CACHE_WAYS), + "i" (CACHE_WAYS) + : "d0", "a0" ); +} + +/***************************************************************************/ +#endif /* CACHE_PUSH */ +/***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/clk.c b/arch/m68k/platform/coldfire/clk.c new file mode 100644 index 000000000000..9f1260c5e2ad --- /dev/null +++ b/arch/m68k/platform/coldfire/clk.c @@ -0,0 +1,45 @@ +/***************************************************************************/ + +/* + * clk.c -- general ColdFire CPU kernel clk handling + * + * Copyright (C) 2009, Greg Ungerer (gerg@snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/clk.h> +#include <asm/coldfire.h> + +/***************************************************************************/ + +struct clk *clk_get(struct device *dev, const char *id) +{ + return NULL; +} +EXPORT_SYMBOL(clk_get); + +int clk_enable(struct clk *clk) +{ + return 0; +} +EXPORT_SYMBOL(clk_enable); + +void clk_disable(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_disable); + +void clk_put(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_put); + +unsigned long clk_get_rate(struct clk *clk) +{ + return MCF_CLK; +} +EXPORT_SYMBOL(clk_get_rate); +/***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/dma.c b/arch/m68k/platform/coldfire/dma.c new file mode 100644 index 000000000000..e88b95e2cc62 --- /dev/null +++ b/arch/m68k/platform/coldfire/dma.c @@ -0,0 +1,39 @@ +/***************************************************************************/ + +/* + * dma.c -- Freescale ColdFire DMA support + * + * Copyright (C) 2007, Greg Ungerer (gerg@snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <asm/dma.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfdma.h> + +/***************************************************************************/ + +/* + * DMA channel base address table. + */ +unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { +#ifdef MCFDMA_BASE0 + MCFDMA_BASE0, +#endif +#ifdef MCFDMA_BASE1 + MCFDMA_BASE1, +#endif +#ifdef MCFDMA_BASE2 + MCFDMA_BASE2, +#endif +#ifdef MCFDMA_BASE3 + MCFDMA_BASE3, +#endif +}; + +unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; + +/***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/dma_timer.c b/arch/m68k/platform/coldfire/dma_timer.c new file mode 100644 index 000000000000..a5f562823d7a --- /dev/null +++ b/arch/m68k/platform/coldfire/dma_timer.c @@ -0,0 +1,84 @@ +/* + * dma_timer.c -- Freescale ColdFire DMA Timer. + * + * Copyright (C) 2007, Benedikt Spranger <b.spranger@linutronix.de> + * Copyright (C) 2008. Sebastian Siewior, Linutronix + * + */ + +#include <linux/clocksource.h> +#include <linux/io.h> + +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfpit.h> +#include <asm/mcfsim.h> + +#define DMA_TIMER_0 (0x00) +#define DMA_TIMER_1 (0x40) +#define DMA_TIMER_2 (0x80) +#define DMA_TIMER_3 (0xc0) + +#define DTMR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x400) +#define DTXMR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x402) +#define DTER0 (MCF_IPSBAR + DMA_TIMER_0 + 0x403) +#define DTRR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x404) +#define DTCR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x408) +#define DTCN0 (MCF_IPSBAR + DMA_TIMER_0 + 0x40c) + +#define DMA_FREQ ((MCF_CLK / 2) / 16) + +/* DTMR */ +#define DMA_DTMR_RESTART (1 << 3) +#define DMA_DTMR_CLK_DIV_1 (1 << 1) +#define DMA_DTMR_CLK_DIV_16 (2 << 1) +#define DMA_DTMR_ENABLE (1 << 0) + +static cycle_t cf_dt_get_cycles(struct clocksource *cs) +{ + return __raw_readl(DTCN0); +} + +static struct clocksource clocksource_cf_dt = { + .name = "coldfire_dma_timer", + .rating = 200, + .read = cf_dt_get_cycles, + .mask = CLOCKSOURCE_MASK(32), + .shift = 20, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +static int __init init_cf_dt_clocksource(void) +{ + /* + * We setup DMA timer 0 in free run mode. This incrementing counter is + * used as a highly precious clock source. With MCF_CLOCK = 150 MHz we + * get a ~213 ns resolution and the 32bit register will overflow almost + * every 15 minutes. + */ + __raw_writeb(0x00, DTXMR0); + __raw_writeb(0x00, DTER0); + __raw_writel(0x00000000, DTRR0); + __raw_writew(DMA_DTMR_CLK_DIV_16 | DMA_DTMR_ENABLE, DTMR0); + clocksource_cf_dt.mult = clocksource_hz2mult(DMA_FREQ, + clocksource_cf_dt.shift); + return clocksource_register(&clocksource_cf_dt); +} + +arch_initcall(init_cf_dt_clocksource); + +#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ +#define CYC2NS_SCALE ((1000000 << CYC2NS_SCALE_FACTOR) / (DMA_FREQ / 1000)) + +static unsigned long long cycles2ns(unsigned long cycl) +{ + return (unsigned long long) ((unsigned long long)cycl * + CYC2NS_SCALE) >> CYC2NS_SCALE_FACTOR; +} + +unsigned long long sched_clock(void) +{ + unsigned long cycl = __raw_readl(DTCN0); + + return cycles2ns(cycl); +} diff --git a/arch/m68k/platform/coldfire/entry.S b/arch/m68k/platform/coldfire/entry.S new file mode 100644 index 000000000000..5837cf080b6d --- /dev/null +++ b/arch/m68k/platform/coldfire/entry.S @@ -0,0 +1,203 @@ +/* + * linux/arch/m68knommu/platform/5307/entry.S + * + * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * Copyright (C) 2000 Lineo Inc. (www.lineo.com) + * Copyright (C) 2004-2006 Macq Electronique SA. (www.macqel.com) + * + * Based on: + * + * linux/arch/m68k/kernel/entry.S + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file README.legal in the main directory of this archive + * for more details. + * + * Linux/m68k support by Hamish Macdonald + * + * 68060 fixes by Jesper Skov + * ColdFire support by Greg Ungerer (gerg@snapgear.com) + * 5307 fixes by David W. Miller + * linux 2.4 support David McCullough <davidm@snapgear.com> + * Bug, speed and maintainability fixes by Philippe De Muyter <phdm@macqel.be> + */ + +#include <linux/sys.h> +#include <linux/linkage.h> +#include <asm/unistd.h> +#include <asm/thread_info.h> +#include <asm/errno.h> +#include <asm/setup.h> +#include <asm/segment.h> +#include <asm/asm-offsets.h> +#include <asm/entry.h> + +#ifdef CONFIG_COLDFIRE_SW_A7 +/* + * Define software copies of the supervisor and user stack pointers. + */ +.bss +sw_ksp: +.long 0 +sw_usp: +.long 0 +#endif /* CONFIG_COLDFIRE_SW_A7 */ + +.text + +.globl system_call +.globl resume +.globl ret_from_exception +.globl ret_from_signal +.globl sys_call_table +.globl inthandler +.globl fasthandler + +enosys: + mov.l #sys_ni_syscall,%d3 + bra 1f + +ENTRY(system_call) + SAVE_ALL + move #0x2000,%sr /* enable intrs again */ + + cmpl #NR_syscalls,%d0 + jcc enosys + lea sys_call_table,%a0 + lsll #2,%d0 /* movel %a0@(%d0:l:4),%d3 */ + movel %a0@(%d0),%d3 + jeq enosys + +1: + movel %sp,%d2 /* get thread_info pointer */ + andl #-THREAD_SIZE,%d2 /* at start of kernel stack */ + movel %d2,%a0 + movel %a0@,%a1 /* save top of frame */ + movel %sp,%a1@(TASK_THREAD+THREAD_ESP0) + btst #(TIF_SYSCALL_TRACE%8),%a0@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) + bnes 1f + + movel %d3,%a0 + jbsr %a0@ + movel %d0,%sp@(PT_OFF_D0) /* save the return value */ + jra ret_from_exception +1: + movel #-ENOSYS,%d2 /* strace needs -ENOSYS in PT_OFF_D0 */ + movel %d2,PT_OFF_D0(%sp) /* on syscall entry */ + subql #4,%sp + SAVE_SWITCH_STACK + jbsr syscall_trace_enter + RESTORE_SWITCH_STACK + addql #4,%sp + movel %d3,%a0 + jbsr %a0@ + movel %d0,%sp@(PT_OFF_D0) /* save the return value */ + subql #4,%sp /* dummy return address */ + SAVE_SWITCH_STACK + jbsr syscall_trace_leave + +ret_from_signal: + RESTORE_SWITCH_STACK + addql #4,%sp + +ret_from_exception: + move #0x2700,%sr /* disable intrs */ + btst #5,%sp@(PT_OFF_SR) /* check if returning to kernel */ + jeq Luser_return /* if so, skip resched, signals */ + +#ifdef CONFIG_PREEMPT + movel %sp,%d1 /* get thread_info pointer */ + andl #-THREAD_SIZE,%d1 /* at base of kernel stack */ + movel %d1,%a0 + movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ + andl #(1<<TIF_NEED_RESCHED),%d1 + jeq Lkernel_return + + movel %a0@(TI_PREEMPTCOUNT),%d1 + cmpl #0,%d1 + jne Lkernel_return + + pea Lkernel_return + jmp preempt_schedule_irq /* preempt the kernel */ +#endif + +Lkernel_return: + moveml %sp@,%d1-%d5/%a0-%a2 + lea %sp@(32),%sp /* space for 8 regs */ + movel %sp@+,%d0 + addql #4,%sp /* orig d0 */ + addl %sp@+,%sp /* stk adj */ + rte + +Luser_return: + movel %sp,%d1 /* get thread_info pointer */ + andl #-THREAD_SIZE,%d1 /* at base of kernel stack */ + movel %d1,%a0 + movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ + jne Lwork_to_do /* still work to do */ + +Lreturn: + RESTORE_USER + +Lwork_to_do: + movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ + move #0x2000,%sr /* enable intrs again */ + btst #TIF_NEED_RESCHED,%d1 + jne reschedule + + /* GERG: do we need something here for TRACEing?? */ + +Lsignal_return: + subql #4,%sp /* dummy return address */ + SAVE_SWITCH_STACK + pea %sp@(SWITCH_STACK_SIZE) + jsr do_signal + addql #4,%sp + RESTORE_SWITCH_STACK + addql #4,%sp + jmp Luser_return + +/* + * This is the generic interrupt handler (for all hardware interrupt + * sources). Calls upto high level code to do all the work. + */ +ENTRY(inthandler) + SAVE_ALL + moveq #-1,%d0 + movel %d0,%sp@(PT_OFF_ORIG_D0) + + movew %sp@(PT_OFF_FORMATVEC),%d0 /* put exception # in d0 */ + andl #0x03fc,%d0 /* mask out vector only */ + + movel %sp,%sp@- /* push regs arg */ + lsrl #2,%d0 /* calculate real vector # */ + movel %d0,%sp@- /* push vector number */ + jbsr do_IRQ /* call high level irq handler */ + lea %sp@(8),%sp /* pop args off stack */ + + bra ret_from_exception + +/* + * Beware - when entering resume, prev (the current task) is + * in a0, next (the new task) is in a1,so don't change these + * registers until their contents are no longer needed. + * This is always called in supervisor mode, so don't bother to save + * and restore sr; user's process sr is actually in the stack. + */ +ENTRY(resume) + movel %a0, %d1 /* get prev thread in d1 */ + RDUSP + movel %a2,%a0@(TASK_THREAD+THREAD_USP) + + SAVE_SWITCH_STACK + movel %sp,%a0@(TASK_THREAD+THREAD_KSP) /* save kernel stack pointer */ + movel %a1@(TASK_THREAD+THREAD_KSP),%sp /* restore new thread stack */ + RESTORE_SWITCH_STACK + + movel %a1@(TASK_THREAD+THREAD_USP),%a0 /* restore thread user stack */ + WRUSP + rts diff --git a/arch/m68k/platform/coldfire/gpio.c b/arch/m68k/platform/coldfire/gpio.c new file mode 100644 index 000000000000..ff0045793450 --- /dev/null +++ b/arch/m68k/platform/coldfire/gpio.c @@ -0,0 +1,127 @@ +/* + * Coldfire generic GPIO support. + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/sysdev.h> + +#include <asm/gpio.h> +#include <asm/pinmux.h> +#include <asm/mcfgpio.h> + +#define MCF_CHIP(chip) container_of(chip, struct mcf_gpio_chip, gpio_chip) + +int mcf_gpio_direction_input(struct gpio_chip *chip, unsigned offset) +{ + unsigned long flags; + MCFGPIO_PORTTYPE dir; + struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + + local_irq_save(flags); + dir = mcfgpio_read(mcf_chip->pddr); + dir &= ~mcfgpio_bit(chip->base + offset); + mcfgpio_write(dir, mcf_chip->pddr); + local_irq_restore(flags); + + return 0; +} + +int mcf_gpio_get_value(struct gpio_chip *chip, unsigned offset) +{ + struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + + return mcfgpio_read(mcf_chip->ppdr) & mcfgpio_bit(chip->base + offset); +} + +int mcf_gpio_direction_output(struct gpio_chip *chip, unsigned offset, + int value) +{ + unsigned long flags; + MCFGPIO_PORTTYPE data; + struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + + local_irq_save(flags); + /* write the value to the output latch */ + data = mcfgpio_read(mcf_chip->podr); + if (value) + data |= mcfgpio_bit(chip->base + offset); + else + data &= ~mcfgpio_bit(chip->base + offset); + mcfgpio_write(data, mcf_chip->podr); + + /* now set the direction to output */ + data = mcfgpio_read(mcf_chip->pddr); + data |= mcfgpio_bit(chip->base + offset); + mcfgpio_write(data, mcf_chip->pddr); + local_irq_restore(flags); + + return 0; +} + +void mcf_gpio_set_value(struct gpio_chip *chip, unsigned offset, int value) +{ + struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + + unsigned long flags; + MCFGPIO_PORTTYPE data; + + local_irq_save(flags); + data = mcfgpio_read(mcf_chip->podr); + if (value) + data |= mcfgpio_bit(chip->base + offset); + else + data &= ~mcfgpio_bit(chip->base + offset); + mcfgpio_write(data, mcf_chip->podr); + local_irq_restore(flags); +} + +void mcf_gpio_set_value_fast(struct gpio_chip *chip, unsigned offset, int value) +{ + struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + + if (value) + mcfgpio_write(mcfgpio_bit(chip->base + offset), mcf_chip->setr); + else + mcfgpio_write(~mcfgpio_bit(chip->base + offset), mcf_chip->clrr); +} + +int mcf_gpio_request(struct gpio_chip *chip, unsigned offset) +{ + struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + + return mcf_chip->gpio_to_pinmux ? + mcf_pinmux_request(mcf_chip->gpio_to_pinmux[offset], 0) : 0; +} + +void mcf_gpio_free(struct gpio_chip *chip, unsigned offset) +{ + struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); + + mcf_gpio_direction_input(chip, offset); + + if (mcf_chip->gpio_to_pinmux) + mcf_pinmux_release(mcf_chip->gpio_to_pinmux[offset], 0); +} + +struct sysdev_class mcf_gpio_sysclass = { + .name = "gpio", +}; + +static int __init mcf_gpio_sysinit(void) +{ + return sysdev_class_register(&mcf_gpio_sysclass); +} + +core_initcall(mcf_gpio_sysinit); diff --git a/arch/m68k/platform/coldfire/head.S b/arch/m68k/platform/coldfire/head.S new file mode 100644 index 000000000000..129bff4956b5 --- /dev/null +++ b/arch/m68k/platform/coldfire/head.S @@ -0,0 +1,250 @@ +/*****************************************************************************/ + +/* + * head.S -- common startup code for ColdFire CPUs. + * + * (C) Copyright 1999-2010, Greg Ungerer <gerg@snapgear.com>. + */ + +/*****************************************************************************/ + +#include <linux/sys.h> +#include <linux/linkage.h> +#include <linux/init.h> +#include <asm/asm-offsets.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/thread_info.h> + +/*****************************************************************************/ + +/* + * If we don't have a fixed memory size, then lets build in code + * to auto detect the DRAM size. Obviously this is the prefered + * method, and should work for most boards. It won't work for those + * that do not have their RAM starting at address 0, and it only + * works on SDRAM (not boards fitted with SRAM). + */ +#if CONFIG_RAMSIZE != 0 +.macro GET_MEM_SIZE + movel #CONFIG_RAMSIZE,%d0 /* hard coded memory size */ +.endm + +#elif defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \ + defined(CONFIG_M5249) || defined(CONFIG_M527x) || \ + defined(CONFIG_M528x) || defined(CONFIG_M5307) || \ + defined(CONFIG_M5407) +/* + * Not all these devices have exactly the same DRAM controller, + * but the DCMR register is virtually identical - give or take + * a couple of bits. The only exception is the 5272 devices, their + * DRAM controller is quite different. + */ +.macro GET_MEM_SIZE + movel MCFSIM_DMR0,%d0 /* get mask for 1st bank */ + btst #0,%d0 /* check if region enabled */ + beq 1f + andl #0xfffc0000,%d0 + beq 1f + addl #0x00040000,%d0 /* convert mask to size */ +1: + movel MCFSIM_DMR1,%d1 /* get mask for 2nd bank */ + btst #0,%d1 /* check if region enabled */ + beq 2f + andl #0xfffc0000,%d1 + beq 2f + addl #0x00040000,%d1 + addl %d1,%d0 /* total mem size in d0 */ +2: +.endm + +#elif defined(CONFIG_M5272) +.macro GET_MEM_SIZE + movel MCF_MBAR+MCFSIM_CSOR7,%d0 /* get SDRAM address mask */ + andil #0xfffff000,%d0 /* mask out chip select options */ + negl %d0 /* negate bits */ +.endm + +#elif defined(CONFIG_M520x) +.macro GET_MEM_SIZE + clrl %d0 + movel MCFSIM_SDCS0, %d2 /* Get SDRAM chip select 0 config */ + andl #0x1f, %d2 /* Get only the chip select size */ + beq 3f /* Check if it is enabled */ + addql #1, %d2 /* Form exponent */ + moveql #1, %d0 + lsll %d2, %d0 /* 2 ^ exponent */ +3: + movel MCFSIM_SDCS1, %d2 /* Get SDRAM chip select 1 config */ + andl #0x1f, %d2 /* Get only the chip select size */ + beq 4f /* Check if it is enabled */ + addql #1, %d2 /* Form exponent */ + moveql #1, %d1 + lsll %d2, %d1 /* 2 ^ exponent */ + addl %d1, %d0 /* Total size of SDRAM in d0 */ +4: +.endm + +#else +#error "ERROR: I don't know how to probe your boards memory size?" +#endif + +/*****************************************************************************/ + +/* + * Boards and platforms can do specific early hardware setup if + * they need to. Most don't need this, define away if not required. + */ +#ifndef PLATFORM_SETUP +#define PLATFORM_SETUP +#endif + +/*****************************************************************************/ + +.global _start +.global _rambase +.global _ramvec +.global _ramstart +.global _ramend +#if defined(CONFIG_UBOOT) +.global _init_sp +#endif + +/*****************************************************************************/ + +.data + +/* + * During startup we store away the RAM setup. These are not in the + * bss, since their values are determined and written before the bss + * has been cleared. + */ +_rambase: +.long 0 +_ramvec: +.long 0 +_ramstart: +.long 0 +_ramend: +.long 0 +#if defined(CONFIG_UBOOT) +_init_sp: +.long 0 +#endif + +/*****************************************************************************/ + +__HEAD + +/* + * This is the codes first entry point. This is where it all + * begins... + */ + +_start: + nop /* filler */ + movew #0x2700, %sr /* no interrupts */ +#if defined(CONFIG_UBOOT) + movel %sp,_init_sp /* save initial stack pointer */ +#endif + + /* + * Do any platform or board specific setup now. Most boards + * don't need anything. Those exceptions are define this in + * their board specific includes. + */ + PLATFORM_SETUP + + /* + * Create basic memory configuration. Set VBR accordingly, + * and size memory. + */ + movel #CONFIG_VECTORBASE,%a7 + movec %a7,%VBR /* set vectors addr */ + movel %a7,_ramvec + + movel #CONFIG_RAMBASE,%a7 /* mark the base of RAM */ + movel %a7,_rambase + + GET_MEM_SIZE /* macro code determines size */ + addl %a7,%d0 + movel %d0,_ramend /* set end ram addr */ + + /* + * Now that we know what the memory is, lets enable cache + * and get things moving. This is Coldfire CPU specific. Not + * all version cores have identical cache register setup. But + * it is very similar. Define the exact settings in the headers + * then the code here is the same for all. + */ + movel #CACHE_INIT,%d0 /* invalidate whole cache */ + movec %d0,%CACR + nop + movel #ACR0_MODE,%d0 /* set RAM region for caching */ + movec %d0,%ACR0 + movel #ACR1_MODE,%d0 /* anything else to cache? */ + movec %d0,%ACR1 +#ifdef ACR2_MODE + movel #ACR2_MODE,%d0 + movec %d0,%ACR2 + movel #ACR3_MODE,%d0 + movec %d0,%ACR3 +#endif + movel #CACHE_MODE,%d0 /* enable cache */ + movec %d0,%CACR + nop + +#ifdef CONFIG_ROMFS_FS + /* + * Move ROM filesystem above bss :-) + */ + lea _sbss,%a0 /* get start of bss */ + lea _ebss,%a1 /* set up destination */ + movel %a0,%a2 /* copy of bss start */ + + movel 8(%a0),%d0 /* get size of ROMFS */ + addql #8,%d0 /* allow for rounding */ + andl #0xfffffffc, %d0 /* whole words */ + + addl %d0,%a0 /* copy from end */ + addl %d0,%a1 /* copy from end */ + movel %a1,_ramstart /* set start of ram */ + +_copy_romfs: + movel -(%a0),%d0 /* copy dword */ + movel %d0,-(%a1) + cmpl %a0,%a2 /* check if at end */ + bne _copy_romfs + +#else /* CONFIG_ROMFS_FS */ + lea _ebss,%a1 + movel %a1,_ramstart +#endif /* CONFIG_ROMFS_FS */ + + + /* + * Zero out the bss region. + */ + lea _sbss,%a0 /* get start of bss */ + lea _ebss,%a1 /* get end of bss */ + clrl %d0 /* set value */ +_clear_bss: + movel %d0,(%a0)+ /* clear each word */ + cmpl %a0,%a1 /* check if at end */ + bne _clear_bss + + /* + * Load the current task pointer and stack. + */ + lea init_thread_union,%a0 + lea THREAD_SIZE(%a0),%sp + + /* + * Assember start up done, start code proper. + */ + jsr start_kernel /* start Linux kernel */ + +_exit: + jmp _exit /* should never get here */ + +/*****************************************************************************/ diff --git a/arch/m68k/platform/coldfire/intc-2.c b/arch/m68k/platform/coldfire/intc-2.c new file mode 100644 index 000000000000..2cbfbf035db9 --- /dev/null +++ b/arch/m68k/platform/coldfire/intc-2.c @@ -0,0 +1,214 @@ +/* + * intc-2.c + * + * General interrupt controller code for the many ColdFire cores that use + * interrupt controllers with 63 interrupt sources, organized as 56 fully- + * programmable + 7 fixed-level interrupt sources. This includes the 523x + * family, the 5270, 5271, 5274, 5275, and the 528x family which have two such + * controllers, and the 547x and 548x families which have only one of them. + * + * The external 7 fixed interrupts are part the the Edge Port unit of these + * ColdFire parts. They can be configured as level or edge triggered. + * + * (C) Copyright 2009-2011, Greg Ungerer <gerg@snapgear.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/traps.h> + +/* + * Bit definitions for the ICR family of registers. + */ +#define MCFSIM_ICR_LEVEL(l) ((l)<<3) /* Level l intr */ +#define MCFSIM_ICR_PRI(p) (p) /* Priority p intr */ + +/* + * The EDGE Port interrupts are the fixed 7 external interrupts. + * They need some special treatment, for example they need to be acked. + */ +#define EINT0 64 /* Is not actually used, but spot reserved for it */ +#define EINT1 65 /* EDGE Port interrupt 1 */ +#define EINT7 71 /* EDGE Port interrupt 7 */ + +#ifdef MCFICM_INTC1 +#define NR_VECS 128 +#else +#define NR_VECS 64 +#endif + +static void intc_irq_mask(struct irq_data *d) +{ + unsigned int irq = d->irq - MCFINT_VECBASE; + unsigned long imraddr; + u32 val, imrbit; + +#ifdef MCFICM_INTC1 + imraddr = (irq & 0x40) ? MCFICM_INTC1 : MCFICM_INTC0; +#else + imraddr = MCFICM_INTC0; +#endif + imraddr += (irq & 0x20) ? MCFINTC_IMRH : MCFINTC_IMRL; + imrbit = 0x1 << (irq & 0x1f); + + val = __raw_readl(imraddr); + __raw_writel(val | imrbit, imraddr); +} + +static void intc_irq_unmask(struct irq_data *d) +{ + unsigned int irq = d->irq - MCFINT_VECBASE; + unsigned long imraddr; + u32 val, imrbit; + +#ifdef MCFICM_INTC1 + imraddr = (irq & 0x40) ? MCFICM_INTC1 : MCFICM_INTC0; +#else + imraddr = MCFICM_INTC0; +#endif + imraddr += ((irq & 0x20) ? MCFINTC_IMRH : MCFINTC_IMRL); + imrbit = 0x1 << (irq & 0x1f); + + /* Don't set the "maskall" bit! */ + if ((irq & 0x20) == 0) + imrbit |= 0x1; + + val = __raw_readl(imraddr); + __raw_writel(val & ~imrbit, imraddr); +} + +/* + * Only the external (or EDGE Port) interrupts need to be acknowledged + * here, as part of the IRQ handler. They only really need to be ack'ed + * if they are in edge triggered mode, but there is no harm in doing it + * for all types. + */ +static void intc_irq_ack(struct irq_data *d) +{ + unsigned int irq = d->irq; + + __raw_writeb(0x1 << (irq - EINT0), MCFEPORT_EPFR); +} + +/* + * Each vector needs a unique priority and level associated with it. + * We don't really care so much what they are, we don't rely on the + * traditional priority interrupt scheme of the m68k/ColdFire. This + * only needs to be set once for an interrupt, and we will never change + * these values once we have set them. + */ +static u8 intc_intpri = MCFSIM_ICR_LEVEL(6) | MCFSIM_ICR_PRI(6); + +static unsigned int intc_irq_startup(struct irq_data *d) +{ + unsigned int irq = d->irq - MCFINT_VECBASE; + unsigned long icraddr; + +#ifdef MCFICM_INTC1 + icraddr = (irq & 0x40) ? MCFICM_INTC1 : MCFICM_INTC0; +#else + icraddr = MCFICM_INTC0; +#endif + icraddr += MCFINTC_ICR0 + (irq & 0x3f); + if (__raw_readb(icraddr) == 0) + __raw_writeb(intc_intpri--, icraddr); + + irq = d->irq; + if ((irq >= EINT1) && (irq <= EINT7)) { + u8 v; + + irq -= EINT0; + + /* Set EPORT line as input */ + v = __raw_readb(MCFEPORT_EPDDR); + __raw_writeb(v & ~(0x1 << irq), MCFEPORT_EPDDR); + + /* Set EPORT line as interrupt source */ + v = __raw_readb(MCFEPORT_EPIER); + __raw_writeb(v | (0x1 << irq), MCFEPORT_EPIER); + } + + intc_irq_unmask(d); + return 0; +} + +static int intc_irq_set_type(struct irq_data *d, unsigned int type) +{ + unsigned int irq = d->irq; + u16 pa, tb; + + switch (type) { + case IRQ_TYPE_EDGE_RISING: + tb = 0x1; + break; + case IRQ_TYPE_EDGE_FALLING: + tb = 0x2; + break; + case IRQ_TYPE_EDGE_BOTH: + tb = 0x3; + break; + default: + /* Level triggered */ + tb = 0; + break; + } + + if (tb) + set_irq_handler(irq, handle_edge_irq); + + irq -= EINT0; + pa = __raw_readw(MCFEPORT_EPPAR); + pa = (pa & ~(0x3 << (irq * 2))) | (tb << (irq * 2)); + __raw_writew(pa, MCFEPORT_EPPAR); + + return 0; +} + +static struct irq_chip intc_irq_chip = { + .name = "CF-INTC", + .irq_startup = intc_irq_startup, + .irq_mask = intc_irq_mask, + .irq_unmask = intc_irq_unmask, +}; + +static struct irq_chip intc_irq_chip_edge_port = { + .name = "CF-INTC-EP", + .irq_startup = intc_irq_startup, + .irq_mask = intc_irq_mask, + .irq_unmask = intc_irq_unmask, + .irq_ack = intc_irq_ack, + .irq_set_type = intc_irq_set_type, +}; + +void __init init_IRQ(void) +{ + int irq; + + init_vectors(); + + /* Mask all interrupt sources */ + __raw_writel(0x1, MCFICM_INTC0 + MCFINTC_IMRL); +#ifdef MCFICM_INTC1 + __raw_writel(0x1, MCFICM_INTC1 + MCFINTC_IMRL); +#endif + + for (irq = MCFINT_VECBASE; (irq < MCFINT_VECBASE + NR_VECS); irq++) { + if ((irq >= EINT1) && (irq <=EINT7)) + set_irq_chip(irq, &intc_irq_chip_edge_port); + else + set_irq_chip(irq, &intc_irq_chip); + set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH); + set_irq_handler(irq, handle_level_irq); + } +} + diff --git a/arch/m68k/platform/coldfire/intc-simr.c b/arch/m68k/platform/coldfire/intc-simr.c new file mode 100644 index 000000000000..e642b24ab729 --- /dev/null +++ b/arch/m68k/platform/coldfire/intc-simr.c @@ -0,0 +1,191 @@ +/* + * intc-simr.c + * + * Interrupt controller code for the ColdFire 5208, 5207 & 532x parts. + * + * (C) Copyright 2009-2011, Greg Ungerer <gerg@snapgear.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/traps.h> + +/* + * The EDGE Port interrupts are the fixed 7 external interrupts. + * They need some special treatment, for example they need to be acked. + */ +#ifdef CONFIG_M520x +/* + * The 520x parts only support a limited range of these external + * interrupts, only 1, 4 and 7 (as interrupts 65, 66 and 67). + */ +#define EINT0 64 /* Is not actually used, but spot reserved for it */ +#define EINT1 65 /* EDGE Port interrupt 1 */ +#define EINT4 66 /* EDGE Port interrupt 4 */ +#define EINT7 67 /* EDGE Port interrupt 7 */ + +static unsigned int irqebitmap[] = { 0, 1, 4, 7 }; +static unsigned int inline irq2ebit(unsigned int irq) +{ + return irqebitmap[irq - EINT0]; +} + +#else + +/* + * Most of the ColdFire parts with the EDGE Port module just have + * a strait direct mapping of the 7 external interrupts. Although + * there is a bit reserved for 0, it is not used. + */ +#define EINT0 64 /* Is not actually used, but spot reserved for it */ +#define EINT1 65 /* EDGE Port interrupt 1 */ +#define EINT7 71 /* EDGE Port interrupt 7 */ + +static unsigned int inline irq2ebit(unsigned int irq) +{ + return irq - EINT0; +} + +#endif + +/* + * There maybe one or two interrupt control units, each has 64 + * interrupts. If there is no second unit then MCFINTC1_* defines + * will be 0 (and code for them optimized away). + */ + +static void intc_irq_mask(struct irq_data *d) +{ + unsigned int irq = d->irq - MCFINT_VECBASE; + + if (MCFINTC1_SIMR && (irq > 64)) + __raw_writeb(irq - 64, MCFINTC1_SIMR); + else + __raw_writeb(irq, MCFINTC0_SIMR); +} + +static void intc_irq_unmask(struct irq_data *d) +{ + unsigned int irq = d->irq - MCFINT_VECBASE; + + if (MCFINTC1_CIMR && (irq > 64)) + __raw_writeb(irq - 64, MCFINTC1_CIMR); + else + __raw_writeb(irq, MCFINTC0_CIMR); +} + +static void intc_irq_ack(struct irq_data *d) +{ + unsigned int ebit = irq2ebit(d->irq); + + __raw_writeb(0x1 << ebit, MCFEPORT_EPFR); +} + +static unsigned int intc_irq_startup(struct irq_data *d) +{ + unsigned int irq = d->irq; + + if ((irq >= EINT1) && (irq <= EINT7)) { + unsigned int ebit = irq2ebit(irq); + u8 v; + + /* Set EPORT line as input */ + v = __raw_readb(MCFEPORT_EPDDR); + __raw_writeb(v & ~(0x1 << ebit), MCFEPORT_EPDDR); + + /* Set EPORT line as interrupt source */ + v = __raw_readb(MCFEPORT_EPIER); + __raw_writeb(v | (0x1 << ebit), MCFEPORT_EPIER); + } + + irq -= MCFINT_VECBASE; + if (MCFINTC1_ICR0 && (irq > 64)) + __raw_writeb(5, MCFINTC1_ICR0 + irq - 64); + else + __raw_writeb(5, MCFINTC0_ICR0 + irq); + + + intc_irq_unmask(d); + return 0; +} + +static int intc_irq_set_type(struct irq_data *d, unsigned int type) +{ + unsigned int ebit, irq = d->irq; + u16 pa, tb; + + switch (type) { + case IRQ_TYPE_EDGE_RISING: + tb = 0x1; + break; + case IRQ_TYPE_EDGE_FALLING: + tb = 0x2; + break; + case IRQ_TYPE_EDGE_BOTH: + tb = 0x3; + break; + default: + /* Level triggered */ + tb = 0; + break; + } + + if (tb) + set_irq_handler(irq, handle_edge_irq); + + ebit = irq2ebit(irq) * 2; + pa = __raw_readw(MCFEPORT_EPPAR); + pa = (pa & ~(0x3 << ebit)) | (tb << ebit); + __raw_writew(pa, MCFEPORT_EPPAR); + + return 0; +} + +static struct irq_chip intc_irq_chip = { + .name = "CF-INTC", + .irq_startup = intc_irq_startup, + .irq_mask = intc_irq_mask, + .irq_unmask = intc_irq_unmask, +}; + +static struct irq_chip intc_irq_chip_edge_port = { + .name = "CF-INTC-EP", + .irq_startup = intc_irq_startup, + .irq_mask = intc_irq_mask, + .irq_unmask = intc_irq_unmask, + .irq_ack = intc_irq_ack, + .irq_set_type = intc_irq_set_type, +}; + +void __init init_IRQ(void) +{ + int irq, eirq; + + init_vectors(); + + /* Mask all interrupt sources */ + __raw_writeb(0xff, MCFINTC0_SIMR); + if (MCFINTC1_SIMR) + __raw_writeb(0xff, MCFINTC1_SIMR); + + eirq = MCFINT_VECBASE + 64 + (MCFINTC1_ICR0 ? 64 : 0); + for (irq = MCFINT_VECBASE; (irq < eirq); irq++) { + if ((irq >= EINT1) && (irq <= EINT7)) + set_irq_chip(irq, &intc_irq_chip_edge_port); + else + set_irq_chip(irq, &intc_irq_chip); + set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH); + set_irq_handler(irq, handle_level_irq); + } +} + diff --git a/arch/m68k/platform/coldfire/intc.c b/arch/m68k/platform/coldfire/intc.c new file mode 100644 index 000000000000..d648081a63f6 --- /dev/null +++ b/arch/m68k/platform/coldfire/intc.c @@ -0,0 +1,151 @@ +/* + * intc.c -- support for the old ColdFire interrupt controller + * + * (C) Copyright 2009, Greg Ungerer <gerg@snapgear.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <asm/traps.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> + +/* + * The mapping of irq number to a mask register bit is not one-to-one. + * The irq numbers are either based on "level" of interrupt or fixed + * for an autovector-able interrupt. So we keep a local data structure + * that maps from irq to mask register. Not all interrupts will have + * an IMR bit. + */ +unsigned char mcf_irq2imr[NR_IRQS]; + +/* + * Define the miniumun and maximum external interrupt numbers. + * This is also used as the "level" interrupt numbers. + */ +#define EIRQ1 25 +#define EIRQ7 31 + +/* + * In the early version 2 core ColdFire parts the IMR register was 16 bits + * in size. Version 3 (and later version 2) core parts have a 32 bit + * sized IMR register. Provide some size independant methods to access the + * IMR register. + */ +#ifdef MCFSIM_IMR_IS_16BITS + +void mcf_setimr(int index) +{ + u16 imr; + imr = __raw_readw(MCF_MBAR + MCFSIM_IMR); + __raw_writew(imr | (0x1 << index), MCF_MBAR + MCFSIM_IMR); +} + +void mcf_clrimr(int index) +{ + u16 imr; + imr = __raw_readw(MCF_MBAR + MCFSIM_IMR); + __raw_writew(imr & ~(0x1 << index), MCF_MBAR + MCFSIM_IMR); +} + +void mcf_maskimr(unsigned int mask) +{ + u16 imr; + imr = __raw_readw(MCF_MBAR + MCFSIM_IMR); + imr |= mask; + __raw_writew(imr, MCF_MBAR + MCFSIM_IMR); +} + +#else + +void mcf_setimr(int index) +{ + u32 imr; + imr = __raw_readl(MCF_MBAR + MCFSIM_IMR); + __raw_writel(imr | (0x1 << index), MCF_MBAR + MCFSIM_IMR); +} + +void mcf_clrimr(int index) +{ + u32 imr; + imr = __raw_readl(MCF_MBAR + MCFSIM_IMR); + __raw_writel(imr & ~(0x1 << index), MCF_MBAR + MCFSIM_IMR); +} + +void mcf_maskimr(unsigned int mask) +{ + u32 imr; + imr = __raw_readl(MCF_MBAR + MCFSIM_IMR); + imr |= mask; + __raw_writel(imr, MCF_MBAR + MCFSIM_IMR); +} + +#endif + +/* + * Interrupts can be "vectored" on the ColdFire cores that support this old + * interrupt controller. That is, the device raising the interrupt can also + * supply the vector number to interrupt through. The AVR register of the + * interrupt controller enables or disables this for each external interrupt, + * so provide generic support for this. Setting this up is out-of-band for + * the interrupt system API's, and needs to be done by the driver that + * supports this device. Very few devices actually use this. + */ +void mcf_autovector(int irq) +{ +#ifdef MCFSIM_AVR + if ((irq >= EIRQ1) && (irq <= EIRQ7)) { + u8 avec; + avec = __raw_readb(MCF_MBAR + MCFSIM_AVR); + avec |= (0x1 << (irq - EIRQ1 + 1)); + __raw_writeb(avec, MCF_MBAR + MCFSIM_AVR); + } +#endif +} + +static void intc_irq_mask(struct irq_data *d) +{ + if (mcf_irq2imr[d->irq]) + mcf_setimr(mcf_irq2imr[d->irq]); +} + +static void intc_irq_unmask(struct irq_data *d) +{ + if (mcf_irq2imr[d->irq]) + mcf_clrimr(mcf_irq2imr[d->irq]); +} + +static int intc_irq_set_type(struct irq_data *d, unsigned int type) +{ + return 0; +} + +static struct irq_chip intc_irq_chip = { + .name = "CF-INTC", + .irq_mask = intc_irq_mask, + .irq_unmask = intc_irq_unmask, + .irq_set_type = intc_irq_set_type, +}; + +void __init init_IRQ(void) +{ + int irq; + + init_vectors(); + mcf_maskimr(0xffffffff); + + for (irq = 0; (irq < NR_IRQS); irq++) { + set_irq_chip(irq, &intc_irq_chip); + set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH); + set_irq_handler(irq, handle_level_irq); + } +} + diff --git a/arch/m68k/platform/coldfire/pinmux.c b/arch/m68k/platform/coldfire/pinmux.c new file mode 100644 index 000000000000..8c62b825939f --- /dev/null +++ b/arch/m68k/platform/coldfire/pinmux.c @@ -0,0 +1,28 @@ +/* + * Coldfire generic GPIO pinmux support. + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> + +#include <asm/pinmux.h> + +int mcf_pinmux_request(unsigned pinmux, unsigned func) +{ + return 0; +} + +void mcf_pinmux_release(unsigned pinmux, unsigned func) +{ +} diff --git a/arch/m68k/platform/coldfire/pit.c b/arch/m68k/platform/coldfire/pit.c new file mode 100644 index 000000000000..c2b980926bec --- /dev/null +++ b/arch/m68k/platform/coldfire/pit.c @@ -0,0 +1,169 @@ +/***************************************************************************/ + +/* + * pit.c -- Freescale ColdFire PIT timer. Currently this type of + * hardware timer only exists in the Freescale ColdFire + * 5270/5271, 5282 and 5208 CPUs. No doubt newer ColdFire + * family members will probably use it too. + * + * Copyright (C) 1999-2008, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/clockchips.h> +#include <asm/machdep.h> +#include <asm/io.h> +#include <asm/coldfire.h> +#include <asm/mcfpit.h> +#include <asm/mcfsim.h> + +/***************************************************************************/ + +/* + * By default use timer1 as the system clock timer. + */ +#define FREQ ((MCF_CLK / 2) / 64) +#define TA(a) (MCFPIT_BASE1 + (a)) +#define PIT_CYCLES_PER_JIFFY (FREQ / HZ) + +static u32 pit_cnt; + +/* + * Initialize the PIT timer. + * + * This is also called after resume to bring the PIT into operation again. + */ + +static void init_cf_pit_timer(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + + __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR)); + __raw_writew(PIT_CYCLES_PER_JIFFY, TA(MCFPIT_PMR)); + __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | \ + MCFPIT_PCSR_OVW | MCFPIT_PCSR_RLD | \ + MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR)); + break; + + case CLOCK_EVT_MODE_SHUTDOWN: + case CLOCK_EVT_MODE_UNUSED: + + __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR)); + break; + + case CLOCK_EVT_MODE_ONESHOT: + + __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR)); + __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | \ + MCFPIT_PCSR_OVW | MCFPIT_PCSR_CLK64, \ + TA(MCFPIT_PCSR)); + break; + + case CLOCK_EVT_MODE_RESUME: + /* Nothing to do here */ + break; + } +} + +/* + * Program the next event in oneshot mode + * + * Delta is given in PIT ticks + */ +static int cf_pit_next_event(unsigned long delta, + struct clock_event_device *evt) +{ + __raw_writew(delta, TA(MCFPIT_PMR)); + return 0; +} + +struct clock_event_device cf_pit_clockevent = { + .name = "pit", + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, + .set_mode = init_cf_pit_timer, + .set_next_event = cf_pit_next_event, + .shift = 32, + .irq = MCFINT_VECBASE + MCFINT_PIT1, +}; + + + +/***************************************************************************/ + +static irqreturn_t pit_tick(int irq, void *dummy) +{ + struct clock_event_device *evt = &cf_pit_clockevent; + u16 pcsr; + + /* Reset the ColdFire timer */ + pcsr = __raw_readw(TA(MCFPIT_PCSR)); + __raw_writew(pcsr | MCFPIT_PCSR_PIF, TA(MCFPIT_PCSR)); + + pit_cnt += PIT_CYCLES_PER_JIFFY; + evt->event_handler(evt); + return IRQ_HANDLED; +} + +/***************************************************************************/ + +static struct irqaction pit_irq = { + .name = "timer", + .flags = IRQF_DISABLED | IRQF_TIMER, + .handler = pit_tick, +}; + +/***************************************************************************/ + +static cycle_t pit_read_clk(struct clocksource *cs) +{ + unsigned long flags; + u32 cycles; + u16 pcntr; + + local_irq_save(flags); + pcntr = __raw_readw(TA(MCFPIT_PCNTR)); + cycles = pit_cnt; + local_irq_restore(flags); + + return cycles + PIT_CYCLES_PER_JIFFY - pcntr; +} + +/***************************************************************************/ + +static struct clocksource pit_clk = { + .name = "pit", + .rating = 100, + .read = pit_read_clk, + .shift = 20, + .mask = CLOCKSOURCE_MASK(32), +}; + +/***************************************************************************/ + +void hw_timer_init(void) +{ + cf_pit_clockevent.cpumask = cpumask_of(smp_processor_id()); + cf_pit_clockevent.mult = div_sc(FREQ, NSEC_PER_SEC, 32); + cf_pit_clockevent.max_delta_ns = + clockevent_delta2ns(0xFFFF, &cf_pit_clockevent); + cf_pit_clockevent.min_delta_ns = + clockevent_delta2ns(0x3f, &cf_pit_clockevent); + clockevents_register_device(&cf_pit_clockevent); + + setup_irq(MCFINT_VECBASE + MCFINT_PIT1, &pit_irq); + + pit_clk.mult = clocksource_hz2mult(FREQ, pit_clk.shift); + clocksource_register(&pit_clk); +} + +/***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/sltimers.c b/arch/m68k/platform/coldfire/sltimers.c new file mode 100644 index 000000000000..0a1b937c3e18 --- /dev/null +++ b/arch/m68k/platform/coldfire/sltimers.c @@ -0,0 +1,145 @@ +/***************************************************************************/ + +/* + * sltimers.c -- generic ColdFire slice timer support. + * + * Copyright (C) 2009-2010, Philippe De Muyter <phdm@macqel.be> + * based on + * timers.c -- generic ColdFire hardware timer support. + * Copyright (C) 1999-2008, Greg Ungerer <gerg@snapgear.com> + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/profile.h> +#include <linux/clocksource.h> +#include <asm/io.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfslt.h> +#include <asm/mcfsim.h> + +/***************************************************************************/ + +#ifdef CONFIG_HIGHPROFILE + +/* + * By default use Slice Timer 1 as the profiler clock timer. + */ +#define PA(a) (MCF_MBAR + MCFSLT_TIMER1 + (a)) + +/* + * Choose a reasonably fast profile timer. Make it an odd value to + * try and get good coverage of kernel operations. + */ +#define PROFILEHZ 1013 + +irqreturn_t mcfslt_profile_tick(int irq, void *dummy) +{ + /* Reset Slice Timer 1 */ + __raw_writel(MCFSLT_SSR_BE | MCFSLT_SSR_TE, PA(MCFSLT_SSR)); + if (current->pid) + profile_tick(CPU_PROFILING); + return IRQ_HANDLED; +} + +static struct irqaction mcfslt_profile_irq = { + .name = "profile timer", + .flags = IRQF_DISABLED | IRQF_TIMER, + .handler = mcfslt_profile_tick, +}; + +void mcfslt_profile_init(void) +{ + printk(KERN_INFO "PROFILE: lodging TIMER 1 @ %dHz as profile timer\n", + PROFILEHZ); + + setup_irq(MCF_IRQ_PROFILER, &mcfslt_profile_irq); + + /* Set up TIMER 2 as high speed profile clock */ + __raw_writel(MCF_BUSCLK / PROFILEHZ - 1, PA(MCFSLT_STCNT)); + __raw_writel(MCFSLT_SCR_RUN | MCFSLT_SCR_IEN | MCFSLT_SCR_TEN, + PA(MCFSLT_SCR)); + +} + +#endif /* CONFIG_HIGHPROFILE */ + +/***************************************************************************/ + +/* + * By default use Slice Timer 0 as the system clock timer. + */ +#define TA(a) (MCF_MBAR + MCFSLT_TIMER0 + (a)) + +static u32 mcfslt_cycles_per_jiffy; +static u32 mcfslt_cnt; + +static irqreturn_t mcfslt_tick(int irq, void *dummy) +{ + /* Reset Slice Timer 0 */ + __raw_writel(MCFSLT_SSR_BE | MCFSLT_SSR_TE, TA(MCFSLT_SSR)); + mcfslt_cnt += mcfslt_cycles_per_jiffy; + return arch_timer_interrupt(irq, dummy); +} + +static struct irqaction mcfslt_timer_irq = { + .name = "timer", + .flags = IRQF_DISABLED | IRQF_TIMER, + .handler = mcfslt_tick, +}; + +static cycle_t mcfslt_read_clk(struct clocksource *cs) +{ + unsigned long flags; + u32 cycles; + u16 scnt; + + local_irq_save(flags); + scnt = __raw_readl(TA(MCFSLT_SCNT)); + cycles = mcfslt_cnt; + local_irq_restore(flags); + + /* substract because slice timers count down */ + return cycles - scnt; +} + +static struct clocksource mcfslt_clk = { + .name = "slt", + .rating = 250, + .read = mcfslt_read_clk, + .shift = 20, + .mask = CLOCKSOURCE_MASK(32), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +void hw_timer_init(void) +{ + mcfslt_cycles_per_jiffy = MCF_BUSCLK / HZ; + /* + * The coldfire slice timer (SLT) runs from STCNT to 0 included, + * then STCNT again and so on. It counts thus actually + * STCNT + 1 steps for 1 tick, not STCNT. So if you want + * n cycles, initialize STCNT with n - 1. + */ + __raw_writel(mcfslt_cycles_per_jiffy - 1, TA(MCFSLT_STCNT)); + __raw_writel(MCFSLT_SCR_RUN | MCFSLT_SCR_IEN | MCFSLT_SCR_TEN, + TA(MCFSLT_SCR)); + /* initialize mcfslt_cnt knowing that slice timers count down */ + mcfslt_cnt = mcfslt_cycles_per_jiffy; + + setup_irq(MCF_IRQ_TIMER, &mcfslt_timer_irq); + + mcfslt_clk.mult = clocksource_hz2mult(MCF_BUSCLK, mcfslt_clk.shift); + clocksource_register(&mcfslt_clk); + +#ifdef CONFIG_HIGHPROFILE + mcfslt_profile_init(); +#endif +} diff --git a/arch/m68k/platform/coldfire/timers.c b/arch/m68k/platform/coldfire/timers.c new file mode 100644 index 000000000000..60242f65fea9 --- /dev/null +++ b/arch/m68k/platform/coldfire/timers.c @@ -0,0 +1,174 @@ +/***************************************************************************/ + +/* + * timers.c -- generic ColdFire hardware timer support. + * + * Copyright (C) 1999-2008, Greg Ungerer <gerg@snapgear.com> + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/profile.h> +#include <linux/clocksource.h> +#include <asm/io.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcftimer.h> +#include <asm/mcfsim.h> + +/***************************************************************************/ + +/* + * By default use timer1 as the system clock timer. + */ +#define FREQ (MCF_BUSCLK / 16) +#define TA(a) (MCFTIMER_BASE1 + (a)) + +/* + * These provide the underlying interrupt vector support. + * Unfortunately it is a little different on each ColdFire. + */ +void coldfire_profile_init(void); + +#if defined(CONFIG_M532x) +#define __raw_readtrr __raw_readl +#define __raw_writetrr __raw_writel +#else +#define __raw_readtrr __raw_readw +#define __raw_writetrr __raw_writew +#endif + +static u32 mcftmr_cycles_per_jiffy; +static u32 mcftmr_cnt; + +/***************************************************************************/ + +static irqreturn_t mcftmr_tick(int irq, void *dummy) +{ + /* Reset the ColdFire timer */ + __raw_writeb(MCFTIMER_TER_CAP | MCFTIMER_TER_REF, TA(MCFTIMER_TER)); + + mcftmr_cnt += mcftmr_cycles_per_jiffy; + return arch_timer_interrupt(irq, dummy); +} + +/***************************************************************************/ + +static struct irqaction mcftmr_timer_irq = { + .name = "timer", + .flags = IRQF_DISABLED | IRQF_TIMER, + .handler = mcftmr_tick, +}; + +/***************************************************************************/ + +static cycle_t mcftmr_read_clk(struct clocksource *cs) +{ + unsigned long flags; + u32 cycles; + u16 tcn; + + local_irq_save(flags); + tcn = __raw_readw(TA(MCFTIMER_TCN)); + cycles = mcftmr_cnt; + local_irq_restore(flags); + + return cycles + tcn; +} + +/***************************************************************************/ + +static struct clocksource mcftmr_clk = { + .name = "tmr", + .rating = 250, + .read = mcftmr_read_clk, + .shift = 20, + .mask = CLOCKSOURCE_MASK(32), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +/***************************************************************************/ + +void hw_timer_init(void) +{ + __raw_writew(MCFTIMER_TMR_DISABLE, TA(MCFTIMER_TMR)); + mcftmr_cycles_per_jiffy = FREQ / HZ; + /* + * The coldfire timer runs from 0 to TRR included, then 0 + * again and so on. It counts thus actually TRR + 1 steps + * for 1 tick, not TRR. So if you want n cycles, + * initialize TRR with n - 1. + */ + __raw_writetrr(mcftmr_cycles_per_jiffy - 1, TA(MCFTIMER_TRR)); + __raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 | + MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, TA(MCFTIMER_TMR)); + + mcftmr_clk.mult = clocksource_hz2mult(FREQ, mcftmr_clk.shift); + clocksource_register(&mcftmr_clk); + + setup_irq(MCF_IRQ_TIMER, &mcftmr_timer_irq); + +#ifdef CONFIG_HIGHPROFILE + coldfire_profile_init(); +#endif +} + +/***************************************************************************/ +#ifdef CONFIG_HIGHPROFILE +/***************************************************************************/ + +/* + * By default use timer2 as the profiler clock timer. + */ +#define PA(a) (MCFTIMER_BASE2 + (a)) + +/* + * Choose a reasonably fast profile timer. Make it an odd value to + * try and get good coverage of kernel operations. + */ +#define PROFILEHZ 1013 + +/* + * Use the other timer to provide high accuracy profiling info. + */ +irqreturn_t coldfire_profile_tick(int irq, void *dummy) +{ + /* Reset ColdFire timer2 */ + __raw_writeb(MCFTIMER_TER_CAP | MCFTIMER_TER_REF, PA(MCFTIMER_TER)); + if (current->pid) + profile_tick(CPU_PROFILING); + return IRQ_HANDLED; +} + +/***************************************************************************/ + +static struct irqaction coldfire_profile_irq = { + .name = "profile timer", + .flags = IRQF_DISABLED | IRQF_TIMER, + .handler = coldfire_profile_tick, +}; + +void coldfire_profile_init(void) +{ + printk(KERN_INFO "PROFILE: lodging TIMER2 @ %dHz as profile timer\n", + PROFILEHZ); + + /* Set up TIMER 2 as high speed profile clock */ + __raw_writew(MCFTIMER_TMR_DISABLE, PA(MCFTIMER_TMR)); + + __raw_writetrr(((MCF_BUSCLK / 16) / PROFILEHZ), PA(MCFTIMER_TRR)); + __raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 | + MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, PA(MCFTIMER_TMR)); + + setup_irq(MCF_IRQ_PROFILER, &coldfire_profile_irq); +} + +/***************************************************************************/ +#endif /* CONFIG_HIGHPROFILE */ +/***************************************************************************/ diff --git a/arch/m68k/platform/coldfire/vectors.c b/arch/m68k/platform/coldfire/vectors.c new file mode 100644 index 000000000000..a21d3f870b7a --- /dev/null +++ b/arch/m68k/platform/coldfire/vectors.c @@ -0,0 +1,80 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/coldfire/vectors.c + * + * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com> + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfwdebug.h> + +/***************************************************************************/ + +#ifdef TRAP_DBG_INTERRUPT + +asmlinkage void dbginterrupt_c(struct frame *fp) +{ + extern void dump(struct pt_regs *fp); + printk(KERN_DEBUG "%s(%d): BUS ERROR TRAP\n", __FILE__, __LINE__); + dump((struct pt_regs *) fp); + asm("halt"); +} + +#endif + +/***************************************************************************/ + +extern e_vector *_ramvec; + +void set_evector(int vecnum, void (*handler)(void)) +{ + if (vecnum >= 0 && vecnum <= 255) + _ramvec[vecnum] = handler; +} + +/***************************************************************************/ + +/* Assembler routines */ +asmlinkage void buserr(void); +asmlinkage void trap(void); +asmlinkage void system_call(void); +asmlinkage void inthandler(void); + +void __init init_vectors(void) +{ + int i; + + /* + * There is a common trap handler and common interrupt + * handler that handle almost every vector. We treat + * the system call and bus error special, they get their + * own first level handlers. + */ + for (i = 3; (i <= 23); i++) + _ramvec[i] = trap; + for (i = 33; (i <= 63); i++) + _ramvec[i] = trap; + for (i = 24; (i <= 31); i++) + _ramvec[i] = inthandler; + for (i = 64; (i < 255); i++) + _ramvec[i] = inthandler; + _ramvec[255] = 0; + + _ramvec[2] = buserr; + _ramvec[32] = system_call; + +#ifdef TRAP_DBG_INTERRUPT + _ramvec[12] = dbginterrupt; +#endif +} + +/***************************************************************************/ diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig deleted file mode 100644 index b5424cf948e6..000000000000 --- a/arch/m68knommu/Kconfig +++ /dev/null @@ -1,844 +0,0 @@ -config M68K - bool - default y - select HAVE_IDE - select HAVE_GENERIC_HARDIRQS - select GENERIC_HARDIRQS_NO_DEPRECATED - -config MMU - bool - default n - -config NO_DMA - bool - depends on !COLDFIRE - default y - -config FPU - bool - default n - -config ZONE_DMA - bool - default y - -config RWSEM_GENERIC_SPINLOCK - bool - default y - -config RWSEM_XCHGADD_ALGORITHM - bool - default n - -config ARCH_HAS_ILOG2_U32 - bool - default n - -config ARCH_HAS_ILOG2_U64 - bool - default n - -config GENERIC_FIND_NEXT_BIT - bool - default y - -config GENERIC_GPIO - bool - default n - -config GENERIC_HWEIGHT - bool - default y - -config GENERIC_CALIBRATE_DELAY - bool - default y - -config GENERIC_CMOS_UPDATE - bool - default y - -config TIME_LOW_RES - bool - default y - -config GENERIC_CLOCKEVENTS - bool - default n - -config NO_IOPORT - def_bool y - -config COLDFIRE_SW_A7 - bool - default n - -config HAVE_CACHE_SPLIT - bool - -config HAVE_CACHE_CB - bool - -config HAVE_MBAR - bool - -config HAVE_IPSBAR - bool - -source "init/Kconfig" - -source "kernel/Kconfig.freezer" - -menu "Processor type and features" - -choice - prompt "CPU" - default M68EZ328 - -config M68328 - bool "MC68328" - help - Motorola 68328 processor support. - -config M68EZ328 - bool "MC68EZ328" - help - Motorola 68EX328 processor support. - -config M68VZ328 - bool "MC68VZ328" - help - Motorola 68VZ328 processor support. - -config M68360 - bool "MC68360" - help - Motorola 68360 processor support. - -config M5206 - bool "MCF5206" - select COLDFIRE_SW_A7 - select HAVE_MBAR - help - Motorola ColdFire 5206 processor support. - -config M5206e - bool "MCF5206e" - select COLDFIRE_SW_A7 - select HAVE_MBAR - help - Motorola ColdFire 5206e processor support. - -config M520x - bool "MCF520x" - select GENERIC_CLOCKEVENTS - select HAVE_CACHE_SPLIT - help - Freescale Coldfire 5207/5208 processor support. - -config M523x - bool "MCF523x" - select GENERIC_CLOCKEVENTS - select HAVE_CACHE_SPLIT - select HAVE_IPSBAR - help - Freescale Coldfire 5230/1/2/4/5 processor support - -config M5249 - bool "MCF5249" - select COLDFIRE_SW_A7 - select HAVE_MBAR - help - Motorola ColdFire 5249 processor support. - -config M5271 - bool "MCF5271" - select HAVE_CACHE_SPLIT - select HAVE_IPSBAR - help - Freescale (Motorola) ColdFire 5270/5271 processor support. - -config M5272 - bool "MCF5272" - select COLDFIRE_SW_A7 - select HAVE_MBAR - help - Motorola ColdFire 5272 processor support. - -config M5275 - bool "MCF5275" - select HAVE_CACHE_SPLIT - select HAVE_IPSBAR - help - Freescale (Motorola) ColdFire 5274/5275 processor support. - -config M528x - bool "MCF528x" - select GENERIC_CLOCKEVENTS - select HAVE_CACHE_SPLIT - select HAVE_IPSBAR - help - Motorola ColdFire 5280/5282 processor support. - -config M5307 - bool "MCF5307" - select COLDFIRE_SW_A7 - select HAVE_CACHE_CB - select HAVE_MBAR - help - Motorola ColdFire 5307 processor support. - -config M532x - bool "MCF532x" - select HAVE_CACHE_CB - help - Freescale (Motorola) ColdFire 532x processor support. - -config M5407 - bool "MCF5407" - select COLDFIRE_SW_A7 - select HAVE_CACHE_CB - select HAVE_MBAR - help - Motorola ColdFire 5407 processor support. - -config M547x - bool "MCF547x" - select HAVE_CACHE_CB - select HAVE_MBAR - help - Freescale ColdFire 5470/5471/5472/5473/5474/5475 processor support. - -config M548x - bool "MCF548x" - select HAVE_CACHE_CB - select HAVE_MBAR - help - Freescale ColdFire 5480/5481/5482/5483/5484/5485 processor support. - -endchoice - -config M527x - bool - depends on (M5271 || M5275) - select GENERIC_CLOCKEVENTS - default y - -config M54xx - bool - depends on (M548x || M547x) - default y - -config COLDFIRE - bool - depends on (M5206 || M5206e || M520x || M523x || M5249 || M527x || M5272 || M528x || M5307 || M532x || M5407 || M54xx) - select GENERIC_GPIO - select ARCH_REQUIRE_GPIOLIB - default y - -config CLOCK_SET - bool "Enable setting the CPU clock frequency" - default n - help - On some CPU's you do not need to know what the core CPU clock - frequency is. On these you can disable clock setting. On some - traditional 68K parts, and on all ColdFire parts you need to set - the appropriate CPU clock frequency. On these devices many of the - onboard peripherals derive their timing from the master CPU clock - frequency. - -config CLOCK_FREQ - int "Set the core clock frequency" - default "66666666" - depends on CLOCK_SET - help - Define the CPU clock frequency in use. This is the core clock - frequency, it may or may not be the same as the external clock - crystal fitted to your board. Some processors have an internal - PLL and can have their frequency programmed at run time, others - use internal dividers. In general the kernel won't setup a PLL - if it is fitted (there are some exceptions). This value will be - specific to the exact CPU that you are using. - -config OLDMASK - bool "Old mask 5307 (1H55J) silicon" - depends on M5307 - help - Build support for the older revision ColdFire 5307 silicon. - Specifically this is the 1H55J mask revision. - -if HAVE_CACHE_SPLIT -choice - prompt "Split Cache Configuration" - default CACHE_I - -config CACHE_I - bool "Instruction" - help - Use all of the ColdFire CPU cache memory as an instruction cache. - -config CACHE_D - bool "Data" - help - Use all of the ColdFire CPU cache memory as a data cache. - -config CACHE_BOTH - bool "Both" - help - Split the ColdFire CPU cache, and use half as an instruction cache - and half as a data cache. -endchoice -endif - -if HAVE_CACHE_CB -choice - prompt "Data cache mode" - default CACHE_WRITETHRU - -config CACHE_WRITETHRU - bool "Write-through" - help - The ColdFire CPU cache is set into Write-through mode. - -config CACHE_COPYBACK - bool "Copy-back" - help - The ColdFire CPU cache is set into Copy-back mode. -endchoice -endif - -comment "Platform" - -config PILOT3 - bool "Pilot 1000/5000, PalmPilot Personal/Pro, or PalmIII support" - depends on M68328 - help - Support for the Palm Pilot 1000/5000, Personal/Pro and PalmIII. - -config XCOPILOT_BUGS - bool "(X)Copilot support" - depends on PILOT3 - help - Support the bugs of Xcopilot. - -config UC5272 - bool 'Arcturus Networks uC5272 dimm board support' - depends on M5272 - help - Support for the Arcturus Networks uC5272 dimm board. - -config UC5282 - bool "Arcturus Networks uC5282 board support" - depends on M528x - help - Support for the Arcturus Networks uC5282 dimm board. - -config UCSIMM - bool "uCsimm module support" - depends on M68EZ328 - help - Support for the Arcturus Networks uCsimm module. - -config UCDIMM - bool "uDsimm module support" - depends on M68VZ328 - help - Support for the Arcturus Networks uDsimm module. - -config DRAGEN2 - bool "DragenEngine II board support" - depends on M68VZ328 - help - Support for the DragenEngine II board. - -config DIRECT_IO_ACCESS - bool "Allow user to access IO directly" - depends on (UCSIMM || UCDIMM || DRAGEN2) - help - Disable the CPU internal registers protection in user mode, - to allow a user application to read/write them. - -config INIT_LCD - bool "Initialize LCD" - depends on (UCSIMM || UCDIMM || DRAGEN2) - help - Initialize the LCD controller of the 68x328 processor. - -config MEMORY_RESERVE - int "Memory reservation (MiB)" - depends on (UCSIMM || UCDIMM) - help - Reserve certain memory regions on 68x328 based boards. - -config UCQUICC - bool "Lineo uCquicc board support" - depends on M68360 - help - Support for the Lineo uCquicc board. - -config ARN5206 - bool "Arnewsh 5206 board support" - depends on M5206 - help - Support for the Arnewsh 5206 board. - -config M5206eC3 - bool "Motorola M5206eC3 board support" - depends on M5206e - help - Support for the Motorola M5206eC3 board. - -config ELITE - bool "Motorola M5206eLITE board support" - depends on M5206e - help - Support for the Motorola M5206eLITE board. - -config M5208EVB - bool "Freescale M5208EVB board support" - depends on M520x - help - Support for the Freescale Coldfire M5208EVB. - -config M5235EVB - bool "Freescale M5235EVB support" - depends on M523x - help - Support for the Freescale M5235EVB board. - -config M5249C3 - bool "Motorola M5249C3 board support" - depends on M5249 - help - Support for the Motorola M5249C3 board. - -config M5271EVB - bool "Freescale (Motorola) M5271EVB board support" - depends on M5271 - help - Support for the Freescale (Motorola) M5271EVB board. - -config M5275EVB - bool "Freescale (Motorola) M5275EVB board support" - depends on M5275 - help - Support for the Freescale (Motorola) M5275EVB board. - -config M5272C3 - bool "Motorola M5272C3 board support" - depends on M5272 - help - Support for the Motorola M5272C3 board. - -config COBRA5272 - bool "senTec COBRA5272 board support" - depends on M5272 - help - Support for the senTec COBRA5272 board. - -config AVNET5282 - bool "Avnet 5282 board support" - depends on M528x - help - Support for the Avnet 5282 board. - -config M5282EVB - bool "Motorola M5282EVB board support" - depends on M528x - help - Support for the Motorola M5282EVB board. - -config COBRA5282 - bool "senTec COBRA5282 board support" - depends on M528x - help - Support for the senTec COBRA5282 board. - -config SOM5282EM - bool "EMAC.Inc SOM5282EM board support" - depends on M528x - help - Support for the EMAC.Inc SOM5282EM module. - -config WILDFIRE - bool "Intec Automation Inc. WildFire board support" - depends on M528x - help - Support for the Intec Automation Inc. WildFire. - -config WILDFIREMOD - bool "Intec Automation Inc. WildFire module support" - depends on M528x - help - Support for the Intec Automation Inc. WildFire module. - -config ARN5307 - bool "Arnewsh 5307 board support" - depends on M5307 - help - Support for the Arnewsh 5307 board. - -config M5307C3 - bool "Motorola M5307C3 board support" - depends on M5307 - help - Support for the Motorola M5307C3 board. - -config SECUREEDGEMP3 - bool "SnapGear SecureEdge/MP3 platform support" - depends on M5307 - help - Support for the SnapGear SecureEdge/MP3 platform. - -config M5329EVB - bool "Freescale (Motorola) M5329EVB board support" - depends on M532x - help - Support for the Freescale (Motorola) M5329EVB board. - -config COBRA5329 - bool "senTec COBRA5329 board support" - depends on M532x - help - Support for the senTec COBRA5329 board. - -config M5407C3 - bool "Motorola M5407C3 board support" - depends on M5407 - help - Support for the Motorola M5407C3 board. - -config FIREBEE - bool "FireBee board support" - depends on M547x - help - Support for the FireBee ColdFire 5475 based board. - -config CLEOPATRA - bool "Feith CLEOPATRA board support" - depends on (M5307 || M5407) - help - Support for the Feith Cleopatra boards. - -config CANCam - bool "Feith CANCam board support" - depends on M5272 - help - Support for the Feith CANCam board. - -config SCALES - bool "Feith SCALES board support" - depends on M5272 - help - Support for the Feith SCALES board. - -config NETtel - bool "SecureEdge/NETtel board support" - depends on (M5206e || M5272 || M5307) - help - Support for the SnapGear NETtel/SecureEdge/SnapGear boards. - -config SNAPGEAR - bool "SnapGear router board support" - depends on NETtel - help - Special additional support for SnapGear router boards. - -config CPU16B - bool "Sneha Technologies S.L. Sarasvati board support" - depends on M5272 - help - Support for the SNEHA CPU16B board. - -config MOD5272 - bool "Netburner MOD-5272 board support" - depends on M5272 - help - Support for the Netburner MOD-5272 board. - -config SAVANTrosie1 - bool "Savant Rosie1 board support" - depends on M523x - help - Support for the Savant Rosie1 board. - -config ROMFS_FROM_ROM - bool "ROMFS image not RAM resident" - depends on (NETtel || SNAPGEAR) - help - The ROMfs filesystem will stay resident in the FLASH/ROM, not be - moved into RAM. - -config PILOT - bool - default y - depends on (PILOT3 || PILOT5) - -config ARNEWSH - bool - default y - depends on (ARN5206 || ARN5307) - -config FREESCALE - bool - default y - depends on (M5206eC3 || M5208EVB || M5235EVB || M5249C3 || M5271EVB || M5272C3 || M5275EVB || M5282EVB || M5307C3 || M5329EVB || M5407C3) - -config HW_FEITH - bool - default y - depends on (CLEOPATRA || CANCam || SCALES) - -config senTec - bool - default y - depends on (COBRA5272 || COBRA5282) - -config EMAC_INC - bool - default y - depends on (SOM5282EM) - -config SNEHA - bool - default y - depends on CPU16B - -config SAVANT - bool - default y - depends on SAVANTrosie1 - -config AVNET - bool - default y - depends on (AVNET5282) - -config UBOOT - bool "Support for U-Boot command line parameters" - help - If you say Y here kernel will try to collect command - line parameters from the initial u-boot stack. - default n - -config 4KSTACKS - bool "Use 4Kb for kernel stacks instead of 8Kb" - default y - help - If you say Y here the kernel will use a 4Kb stacksize for the - kernel stack attached to each process/thread. This facilitates - running more threads on a system and also reduces the pressure - on the VM subsystem for higher order allocations. - -config HZ - int - default 1000 if CLEOPATRA - default 100 - -comment "RAM configuration" - -config RAMBASE - hex "Address of the base of RAM" - default "0" - help - Define the address that RAM starts at. On many platforms this is - 0, the base of the address space. And this is the default. Some - platforms choose to setup their RAM at other addresses within the - processor address space. - -config RAMSIZE - hex "Size of RAM (in bytes), or 0 for automatic" - default "0x400000" - help - Define the size of the system RAM. If you select 0 then the - kernel will try to probe the RAM size at runtime. This is not - supported on all CPU types. - -config VECTORBASE - hex "Address of the base of system vectors" - default "0" - help - Define the address of the system vectors. Commonly this is - put at the start of RAM, but it doesn't have to be. On ColdFire - platforms this address is programmed into the VBR register, thus - actually setting the address to use. - -config MBAR - hex "Address of the MBAR (internal peripherals)" - default "0x10000000" - depends on HAVE_MBAR - help - Define the address of the internal system peripherals. This value - is set in the processors MBAR register. This is generally setup by - the boot loader, and will not be written by the kernel. By far most - ColdFire boards use the default 0x10000000 value, so if unsure then - use this. - -config IPSBAR - hex "Address of the IPSBAR (internal peripherals)" - default "0x40000000" - depends on HAVE_IPSBAR - help - Define the address of the internal system peripherals. This value - is set in the processors IPSBAR register. This is generally setup by - the boot loader, and will not be written by the kernel. By far most - ColdFire boards use the default 0x40000000 value, so if unsure then - use this. - -config KERNELBASE - hex "Address of the base of kernel code" - default "0x400" - help - Typically on m68k systems the kernel will not start at the base - of RAM, but usually some small offset from it. Define the start - address of the kernel here. The most common setup will have the - processor vectors at the base of RAM and then the start of the - kernel. On some platforms some RAM is reserved for boot loaders - and the kernel starts after that. The 0x400 default was based on - a system with the RAM based at address 0, and leaving enough room - for the theoretical maximum number of 256 vectors. - -choice - prompt "RAM bus width" - default RAMAUTOBIT - -config RAMAUTOBIT - bool "AUTO" - help - Select the physical RAM data bus size. Not needed on most platforms, - so you can generally choose AUTO. - -config RAM8BIT - bool "8bit" - help - Configure RAM bus to be 8 bits wide. - -config RAM16BIT - bool "16bit" - help - Configure RAM bus to be 16 bits wide. - -config RAM32BIT - bool "32bit" - help - Configure RAM bus to be 32 bits wide. - -endchoice - -comment "ROM configuration" - -config ROM - bool "Specify ROM linker regions" - default n - help - Define a ROM region for the linker script. This creates a kernel - that can be stored in flash, with possibly the text, and data - regions being copied out to RAM at startup. - -config ROMBASE - hex "Address of the base of ROM device" - default "0" - depends on ROM - help - Define the address that the ROM region starts at. Some platforms - use this to set their chip select region accordingly for the boot - device. - -config ROMVEC - hex "Address of the base of the ROM vectors" - default "0" - depends on ROM - help - This is almost always the same as the base of the ROM. Since on all - 68000 type variants the vectors are at the base of the boot device - on system startup. - -config ROMVECSIZE - hex "Size of ROM vector region (in bytes)" - default "0x400" - depends on ROM - help - Define the size of the vector region in ROM. For most 68000 - variants this would be 0x400 bytes in size. Set to 0 if you do - not want a vector region at the start of the ROM. - -config ROMSTART - hex "Address of the base of system image in ROM" - default "0x400" - depends on ROM - help - Define the start address of the system image in ROM. Commonly this - is strait after the ROM vectors. - -config ROMSIZE - hex "Size of the ROM device" - default "0x100000" - depends on ROM - help - Size of the ROM device. On some platforms this is used to setup - the chip select that controls the boot ROM device. - -choice - prompt "Kernel executes from" - ---help--- - Choose the memory type that the kernel will be running in. - -config RAMKERNEL - bool "RAM" - help - The kernel will be resident in RAM when running. - -config ROMKERNEL - bool "ROM" - help - The kernel will be resident in FLASH/ROM when running. This is - often referred to as Execute-in-Place (XIP), since the kernel - code executes from the position it is stored in the FLASH/ROM. - -endchoice - -if COLDFIRE -source "kernel/Kconfig.preempt" -endif - -source "kernel/time/Kconfig" - -source "mm/Kconfig" - -endmenu - -config ISA_DMA_API - bool - depends on !M5272 - default y - -source "drivers/pcmcia/Kconfig" - -menu "Executable file formats" - -source "fs/Kconfig.binfmt" - -endmenu - -menu "Power management options" - -config PM - bool "Power Management support" - help - Support processor power management modes - -endmenu - -source "net/Kconfig" - -source "drivers/Kconfig" - -source "fs/Kconfig" - -source "arch/m68knommu/Kconfig.debug" - -source "security/Kconfig" - -source "crypto/Kconfig" - -source "lib/Kconfig" diff --git a/arch/m68knommu/Kconfig.debug b/arch/m68knommu/Kconfig.debug deleted file mode 100644 index ed6d9a83bfdb..000000000000 --- a/arch/m68knommu/Kconfig.debug +++ /dev/null @@ -1,35 +0,0 @@ -menu "Kernel hacking" - -source "lib/Kconfig.debug" - -config FULLDEBUG - bool "Full Symbolic/Source Debugging support" - help - Enable debugging symbols on kernel build. - -config HIGHPROFILE - bool "Use fast second timer for profiling" - depends on COLDFIRE - help - Use a fast secondary clock to produce profiling information. - -config BOOTPARAM - bool 'Compiled-in Kernel Boot Parameter' - -config BOOTPARAM_STRING - string 'Kernel Boot Parameter' - default 'console=ttyS0,19200' - depends on BOOTPARAM - -config NO_KERNEL_MSG - bool "Suppress Kernel BUG Messages" - help - Do not output any debug BUG messages within the kernel. - -config BDM_DISABLE - bool "Disable BDM signals" - depends on (EXPERIMENTAL && COLDFIRE) - help - Disable the ColdFire CPU's BDM signals. - -endmenu diff --git a/arch/m68knommu/Makefile b/arch/m68knommu/Makefile deleted file mode 100644 index 589613fed31d..000000000000 --- a/arch/m68knommu/Makefile +++ /dev/null @@ -1,126 +0,0 @@ -# -# arch/m68knommu/Makefile -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# -# (C) Copyright 2002, Greg Ungerer <gerg@snapgear.com> -# - -KBUILD_DEFCONFIG := m5208evb_defconfig - -platform-$(CONFIG_M68328) := 68328 -platform-$(CONFIG_M68EZ328) := 68EZ328 -platform-$(CONFIG_M68VZ328) := 68VZ328 -platform-$(CONFIG_M68360) := 68360 -platform-$(CONFIG_M5206) := 5206 -platform-$(CONFIG_M5206e) := 5206e -platform-$(CONFIG_M520x) := 520x -platform-$(CONFIG_M523x) := 523x -platform-$(CONFIG_M5249) := 5249 -platform-$(CONFIG_M527x) := 527x -platform-$(CONFIG_M5272) := 5272 -platform-$(CONFIG_M528x) := 528x -platform-$(CONFIG_M5307) := 5307 -platform-$(CONFIG_M532x) := 532x -platform-$(CONFIG_M5407) := 5407 -platform-$(CONFIG_M54xx) := 54xx -PLATFORM := $(platform-y) - -board-$(CONFIG_PILOT) := pilot -board-$(CONFIG_UC5272) := UC5272 -board-$(CONFIG_UC5282) := UC5282 -board-$(CONFIG_UCSIMM) := ucsimm -board-$(CONFIG_UCDIMM) := ucdimm -board-$(CONFIG_UCQUICC) := uCquicc -board-$(CONFIG_DRAGEN2) := de2 -board-$(CONFIG_ARNEWSH) := ARNEWSH -board-$(CONFIG_FREESCALE) := FREESCALE -board-$(CONFIG_M5235EVB) := M5235EVB -board-$(CONFIG_M5271EVB) := M5271EVB -board-$(CONFIG_M5275EVB) := M5275EVB -board-$(CONFIG_M5282EVB) := M5282EVB -board-$(CONFIG_ELITE) := eLITE -board-$(CONFIG_NETtel) := NETtel -board-$(CONFIG_SECUREEDGEMP3) := MP3 -board-$(CONFIG_CLEOPATRA) := CLEOPATRA -board-$(CONFIG_senTec) := senTec -board-$(CONFIG_SNEHA) := SNEHA -board-$(CONFIG_M5208EVB) := M5208EVB -board-$(CONFIG_MOD5272) := MOD5272 -board-$(CONFIG_AVNET) := AVNET -board-$(CONFIG_SAVANT) := SAVANT -BOARD := $(board-y) - -model-$(CONFIG_RAMKERNEL) := ram -model-$(CONFIG_ROMKERNEL) := rom -MODEL := $(model-y) - -# -# Some code support is grouped together for a common cpu-subclass (for -# example all ColdFire cpu's are very similar). Determine the sub-class -# for the selected cpu. ONLY need to define this for the non-base member -# of the family. -# -cpuclass-$(CONFIG_M5206) := coldfire -cpuclass-$(CONFIG_M5206e) := coldfire -cpuclass-$(CONFIG_M520x) := coldfire -cpuclass-$(CONFIG_M523x) := coldfire -cpuclass-$(CONFIG_M5249) := coldfire -cpuclass-$(CONFIG_M527x) := coldfire -cpuclass-$(CONFIG_M5272) := coldfire -cpuclass-$(CONFIG_M528x) := coldfire -cpuclass-$(CONFIG_M5307) := coldfire -cpuclass-$(CONFIG_M532x) := coldfire -cpuclass-$(CONFIG_M5407) := coldfire -cpuclass-$(CONFIG_M54xx) := coldfire -cpuclass-$(CONFIG_M68328) := 68328 -cpuclass-$(CONFIG_M68EZ328) := 68328 -cpuclass-$(CONFIG_M68VZ328) := 68328 -cpuclass-$(CONFIG_M68360) := 68360 -CPUCLASS := $(cpuclass-y) - -ifneq ($(CPUCLASS),$(PLATFORM)) -CLASSDIR := arch/m68knommu/platform/$(cpuclass-y)/ -endif - -export PLATFORM BOARD MODEL CPUCLASS - -# -# Some CFLAG additions based on specific CPU type. -# -cflags-$(CONFIG_M5206) := $(call cc-option,-mcpu=5206,-m5200) -cflags-$(CONFIG_M5206e) := $(call cc-option,-mcpu=5206e,-m5200) -cflags-$(CONFIG_M520x) := $(call cc-option,-mcpu=5208,-m5200) -cflags-$(CONFIG_M523x) := $(call cc-option,-mcpu=523x,-m5307) -cflags-$(CONFIG_M5249) := $(call cc-option,-mcpu=5249,-m5200) -cflags-$(CONFIG_M5271) := $(call cc-option,-mcpu=5271,-m5307) -cflags-$(CONFIG_M5272) := $(call cc-option,-mcpu=5272,-m5307) -cflags-$(CONFIG_M5275) := $(call cc-option,-mcpu=5275,-m5307) -cflags-$(CONFIG_M528x) := $(call cc-option,-mcpu=528x,-m5307) -cflags-$(CONFIG_M5307) := $(call cc-option,-mcpu=5307,-m5200) -cflags-$(CONFIG_M532x) := $(call cc-option,-mcpu=532x,-m5307) -cflags-$(CONFIG_M5407) := $(call cc-option,-mcpu=5407,-m5200) -cflags-$(CONFIG_M54xx) := $(call cc-option,-mcpu=5475,-m5200) -cflags-$(CONFIG_M68328) := -m68000 -cflags-$(CONFIG_M68EZ328) := -m68000 -cflags-$(CONFIG_M68VZ328) := -m68000 -cflags-$(CONFIG_M68360) := -m68332 - -KBUILD_AFLAGS += $(cflags-y) - -KBUILD_CFLAGS += $(cflags-y) -KBUILD_CFLAGS += -D__linux__ -KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" - -head-y := arch/m68knommu/platform/$(cpuclass-y)/head.o - -core-y += arch/m68knommu/kernel/ \ - arch/m68knommu/mm/ \ - $(CLASSDIR) \ - arch/m68knommu/platform/$(PLATFORM)/ -libs-y += arch/m68knommu/lib/ - -archclean: - diff --git a/arch/m68knommu/configs/m5208evb_defconfig b/arch/m68knommu/configs/m5208evb_defconfig deleted file mode 100644 index 2f5655c577af..000000000000 --- a/arch/m68knommu/configs/m5208evb_defconfig +++ /dev/null @@ -1,74 +0,0 @@ -CONFIG_EXPERIMENTAL=y -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_VM_EVENT_COUNTERS is not set -# CONFIG_COMPAT_BRK is not set -# CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -CONFIG_M520x=y -CONFIG_CLOCK_SET=y -CONFIG_CLOCK_FREQ=166666666 -CONFIG_CLOCK_DIV=2 -CONFIG_M5208EVB=y -# CONFIG_4KSTACKS is not set -CONFIG_RAMBASE=0x40000000 -CONFIG_RAMSIZE=0x2000000 -CONFIG_VECTORBASE=0x40000000 -CONFIG_KERNELBASE=0x40020000 -CONFIG_RAM16BIT=y -CONFIG_BINFMT_FLAT=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set -# CONFIG_INET_DIAG is not set -# CONFIG_IPV6 is not set -CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y -CONFIG_MTD_CHAR=y -CONFIG_MTD_BLOCK=y -CONFIG_MTD_RAM=y -CONFIG_MTD_UCLINUX=y -CONFIG_BLK_DEV_RAM=y -# CONFIG_MISC_DEVICES is not set -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -CONFIG_FEC=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -CONFIG_SERIAL_MCF=y -CONFIG_SERIAL_MCF_BAUDRATE=115200 -CONFIG_SERIAL_MCF_CONSOLE=y -# CONFIG_UNIX98_PTYS is not set -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_EXT2_FS=y -# CONFIG_FILE_LOCKING is not set -# CONFIG_DNOTIFY is not set -# CONFIG_SYSFS is not set -CONFIG_ROMFS_FS=y -CONFIG_ROMFS_BACKED_BY_MTD=y -# CONFIG_NETWORK_FILESYSTEMS is not set -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_SYSCTL_SYSCALL_CHECK=y -CONFIG_FULLDEBUG=y -CONFIG_BOOTPARAM=y -CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" diff --git a/arch/m68knommu/configs/m5249evb_defconfig b/arch/m68knommu/configs/m5249evb_defconfig deleted file mode 100644 index 16df72bfbd45..000000000000 --- a/arch/m68knommu/configs/m5249evb_defconfig +++ /dev/null @@ -1,67 +0,0 @@ -CONFIG_EXPERIMENTAL=y -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_VM_EVENT_COUNTERS is not set -# CONFIG_SLUB_DEBUG is not set -# CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -CONFIG_M5249=y -CONFIG_CLOCK_SET=y -CONFIG_CLOCK_FREQ=140000000 -CONFIG_CLOCK_DIV=2 -CONFIG_M5249C3=y -CONFIG_RAMBASE=0x00000000 -CONFIG_RAMSIZE=0x00800000 -CONFIG_VECTORBASE=0x00000000 -CONFIG_KERNELBASE=0x00020000 -CONFIG_BINFMT_FLAT=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set -# CONFIG_INET_DIAG is not set -# CONFIG_IPV6 is not set -CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y -CONFIG_MTD_CHAR=y -CONFIG_MTD_BLOCK=y -CONFIG_MTD_RAM=y -CONFIG_MTD_UCLINUX=y -CONFIG_BLK_DEV_RAM=y -# CONFIG_MISC_DEVICES is not set -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set -CONFIG_PPP=y -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -CONFIG_SERIAL_MCF=y -CONFIG_SERIAL_MCF_CONSOLE=y -# CONFIG_UNIX98_PTYS is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_EXT2_FS=y -# CONFIG_FILE_LOCKING is not set -CONFIG_ROMFS_FS=y -CONFIG_ROMFS_BACKED_BY_MTD=y -# CONFIG_NETWORK_FILESYSTEMS is not set -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_BOOTPARAM=y -CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" -# CONFIG_CRC32 is not set diff --git a/arch/m68knommu/configs/m5272c3_defconfig b/arch/m68knommu/configs/m5272c3_defconfig deleted file mode 100644 index 4e6ea50c7f33..000000000000 --- a/arch/m68knommu/configs/m5272c3_defconfig +++ /dev/null @@ -1,65 +0,0 @@ -CONFIG_EXPERIMENTAL=y -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_VM_EVENT_COUNTERS is not set -# CONFIG_SLUB_DEBUG is not set -# CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -CONFIG_M5272=y -CONFIG_CLOCK_SET=y -CONFIG_M5272C3=y -CONFIG_RAMBASE=0x00000000 -CONFIG_RAMSIZE=0x00800000 -CONFIG_VECTORBASE=0x00000000 -CONFIG_KERNELBASE=0x00020000 -CONFIG_BINFMT_FLAT=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set -# CONFIG_INET_DIAG is not set -# CONFIG_IPV6 is not set -CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y -CONFIG_MTD_CHAR=y -CONFIG_MTD_BLOCK=y -CONFIG_MTD_RAM=y -CONFIG_MTD_UCLINUX=y -CONFIG_BLK_DEV_RAM=y -# CONFIG_MISC_DEVICES is not set -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -CONFIG_FEC=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -CONFIG_SERIAL_MCF=y -CONFIG_SERIAL_MCF_CONSOLE=y -# CONFIG_UNIX98_PTYS is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_EXT2_FS=y -# CONFIG_FILE_LOCKING is not set -# CONFIG_DNOTIFY is not set -CONFIG_ROMFS_FS=y -CONFIG_ROMFS_BACKED_BY_MTD=y -# CONFIG_NETWORK_FILESYSTEMS is not set -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_BOOTPARAM=y -CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" diff --git a/arch/m68knommu/configs/m5275evb_defconfig b/arch/m68knommu/configs/m5275evb_defconfig deleted file mode 100644 index f3dd74115a34..000000000000 --- a/arch/m68knommu/configs/m5275evb_defconfig +++ /dev/null @@ -1,72 +0,0 @@ -CONFIG_EXPERIMENTAL=y -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_VM_EVENT_COUNTERS is not set -# CONFIG_SLUB_DEBUG is not set -# CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -CONFIG_M5275=y -CONFIG_CLOCK_SET=y -CONFIG_CLOCK_FREQ=150000000 -CONFIG_CLOCK_DIV=2 -CONFIG_M5275EVB=y -# CONFIG_4KSTACKS is not set -CONFIG_RAMBASE=0x00000000 -CONFIG_RAMSIZE=0x00000000 -CONFIG_VECTORBASE=0x00000000 -CONFIG_KERNELBASE=0x00020000 -CONFIG_BINFMT_FLAT=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set -# CONFIG_INET_DIAG is not set -# CONFIG_IPV6 is not set -CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y -CONFIG_MTD_CHAR=y -CONFIG_MTD_BLOCK=y -CONFIG_MTD_RAM=y -CONFIG_MTD_UCLINUX=y -CONFIG_BLK_DEV_RAM=y -# CONFIG_MISC_DEVICES is not set -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -CONFIG_FEC=y -CONFIG_FEC2=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set -CONFIG_PPP=y -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -CONFIG_SERIAL_MCF=y -CONFIG_SERIAL_MCF_CONSOLE=y -# CONFIG_UNIX98_PTYS is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_EXT2_FS=y -# CONFIG_FILE_LOCKING is not set -# CONFIG_DNOTIFY is not set -CONFIG_ROMFS_FS=y -CONFIG_ROMFS_BACKED_BY_MTD=y -# CONFIG_NETWORK_FILESYSTEMS is not set -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_SYSCTL_SYSCALL_CHECK=y -CONFIG_BOOTPARAM=y -CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" -# CONFIG_CRC32 is not set diff --git a/arch/m68knommu/configs/m5307c3_defconfig b/arch/m68knommu/configs/m5307c3_defconfig deleted file mode 100644 index bce0a20c3737..000000000000 --- a/arch/m68knommu/configs/m5307c3_defconfig +++ /dev/null @@ -1,75 +0,0 @@ -CONFIG_EXPERIMENTAL=y -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_VM_EVENT_COUNTERS is not set -# CONFIG_SLUB_DEBUG is not set -# CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -CONFIG_M5307=y -CONFIG_CLOCK_SET=y -CONFIG_CLOCK_FREQ=90000000 -CONFIG_CLOCK_DIV=2 -CONFIG_M5307C3=y -CONFIG_RAMBASE=0x00000000 -CONFIG_RAMSIZE=0x00800000 -CONFIG_VECTORBASE=0x00000000 -CONFIG_KERNELBASE=0x00020000 -CONFIG_BINFMT_FLAT=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set -# CONFIG_INET_DIAG is not set -# CONFIG_IPV6 is not set -CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y -CONFIG_MTD_CHAR=y -CONFIG_MTD_BLOCK=y -CONFIG_MTD_RAM=y -CONFIG_MTD_UCLINUX=y -CONFIG_BLK_DEV_RAM=y -# CONFIG_MISC_DEVICES is not set -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set -CONFIG_PPP=y -CONFIG_SLIP=y -CONFIG_SLIP_COMPRESSED=y -# CONFIG_INPUT_MOUSEDEV is not set -# CONFIG_INPUT_KEYBOARD is not set -# CONFIG_INPUT_MOUSE is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -CONFIG_SERIAL_MCF=y -CONFIG_SERIAL_MCF_CONSOLE=y -# CONFIG_LEGACY_PTYS is not set -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -# CONFIG_HID_SUPPORT is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_EXT2_FS=y -# CONFIG_DNOTIFY is not set -CONFIG_ROMFS_FS=y -CONFIG_ROMFS_BACKED_BY_MTD=y -# CONFIG_NETWORK_FILESYSTEMS is not set -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_SYSCTL_SYSCALL_CHECK=y -CONFIG_FULLDEBUG=y -CONFIG_BOOTPARAM=y -CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" -# CONFIG_CRC32 is not set diff --git a/arch/m68knommu/configs/m5407c3_defconfig b/arch/m68knommu/configs/m5407c3_defconfig deleted file mode 100644 index 618cc32691f2..000000000000 --- a/arch/m68knommu/configs/m5407c3_defconfig +++ /dev/null @@ -1,69 +0,0 @@ -CONFIG_EXPERIMENTAL=y -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_VM_EVENT_COUNTERS is not set -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -# CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -CONFIG_M5407=y -CONFIG_CLOCK_SET=y -CONFIG_CLOCK_FREQ=50000000 -CONFIG_M5407C3=y -CONFIG_RAMBASE=0x00000000 -CONFIG_RAMSIZE=0x00000000 -CONFIG_VECTORBASE=0x00000000 -CONFIG_KERNELBASE=0x00020000 -CONFIG_BINFMT_FLAT=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set -# CONFIG_INET_DIAG is not set -# CONFIG_IPV6 is not set -CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y -CONFIG_MTD_CHAR=y -CONFIG_MTD_BLOCK=y -CONFIG_MTD_RAM=y -CONFIG_MTD_UCLINUX=y -CONFIG_BLK_DEV_RAM=y -# CONFIG_MISC_DEVICES is not set -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set -CONFIG_PPP=y -# CONFIG_INPUT is not set -# CONFIG_VT is not set -CONFIG_SERIAL_MCF=y -CONFIG_SERIAL_MCF_CONSOLE=y -# CONFIG_UNIX98_PTYS is not set -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_EXT2_FS=y -# CONFIG_FILE_LOCKING is not set -# CONFIG_DNOTIFY is not set -CONFIG_ROMFS_FS=y -CONFIG_ROMFS_BACKED_BY_MTD=y -# CONFIG_NETWORK_FILESYSTEMS is not set -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_SYSCTL_SYSCALL_CHECK=y -CONFIG_BOOTPARAM=y -CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" -# CONFIG_CRC32 is not set diff --git a/arch/m68knommu/defconfig b/arch/m68knommu/defconfig deleted file mode 100644 index 2f5655c577af..000000000000 --- a/arch/m68knommu/defconfig +++ /dev/null @@ -1,74 +0,0 @@ -CONFIG_EXPERIMENTAL=y -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_VM_EVENT_COUNTERS is not set -# CONFIG_COMPAT_BRK is not set -# CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set -CONFIG_M520x=y -CONFIG_CLOCK_SET=y -CONFIG_CLOCK_FREQ=166666666 -CONFIG_CLOCK_DIV=2 -CONFIG_M5208EVB=y -# CONFIG_4KSTACKS is not set -CONFIG_RAMBASE=0x40000000 -CONFIG_RAMSIZE=0x2000000 -CONFIG_VECTORBASE=0x40000000 -CONFIG_KERNELBASE=0x40020000 -CONFIG_RAM16BIT=y -CONFIG_BINFMT_FLAT=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set -# CONFIG_INET_DIAG is not set -# CONFIG_IPV6 is not set -CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y -CONFIG_MTD_CHAR=y -CONFIG_MTD_BLOCK=y -CONFIG_MTD_RAM=y -CONFIG_MTD_UCLINUX=y -CONFIG_BLK_DEV_RAM=y -# CONFIG_MISC_DEVICES is not set -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -CONFIG_FEC=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -CONFIG_SERIAL_MCF=y -CONFIG_SERIAL_MCF_BAUDRATE=115200 -CONFIG_SERIAL_MCF_CONSOLE=y -# CONFIG_UNIX98_PTYS is not set -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_EXT2_FS=y -# CONFIG_FILE_LOCKING is not set -# CONFIG_DNOTIFY is not set -# CONFIG_SYSFS is not set -CONFIG_ROMFS_FS=y -CONFIG_ROMFS_BACKED_BY_MTD=y -# CONFIG_NETWORK_FILESYSTEMS is not set -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_SYSCTL_SYSCALL_CHECK=y -CONFIG_FULLDEBUG=y -CONFIG_BOOTPARAM=y -CONFIG_BOOTPARAM_STRING="root=/dev/mtdblock0" diff --git a/arch/m68knommu/kernel/.gitignore b/arch/m68knommu/kernel/.gitignore deleted file mode 100644 index c5f676c3c224..000000000000 --- a/arch/m68knommu/kernel/.gitignore +++ /dev/null @@ -1 +0,0 @@ -vmlinux.lds diff --git a/arch/m68knommu/kernel/Makefile b/arch/m68knommu/kernel/Makefile deleted file mode 100644 index 37c3fc074c0a..000000000000 --- a/arch/m68knommu/kernel/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# Makefile for arch/m68knommu/kernel. -# - -extra-y := vmlinux.lds - -obj-y += dma.o entry.o init_task.o irq.o m68k_ksyms.o process.o ptrace.o \ - setup.o signal.o syscalltable.o sys_m68k.o time.o traps.o - -obj-$(CONFIG_MODULES) += module.o diff --git a/arch/m68knommu/kernel/asm-offsets.c b/arch/m68knommu/kernel/asm-offsets.c deleted file mode 100644 index ffe02f41ad46..000000000000 --- a/arch/m68knommu/kernel/asm-offsets.c +++ /dev/null @@ -1,76 +0,0 @@ -/* - * This program is used to generate definitions needed by - * assembly language modules. - * - * We use the technique used in the OSF Mach kernel code: - * generate asm statements containing #defines, - * compile this file to assembler, and then extract the - * #defines from the assembly-language output. - */ - -#include <linux/stddef.h> -#include <linux/sched.h> -#include <linux/kernel_stat.h> -#include <linux/ptrace.h> -#include <linux/hardirq.h> -#include <linux/kbuild.h> -#include <asm/bootinfo.h> -#include <asm/irq.h> -#include <asm/thread_info.h> - -int main(void) -{ - /* offsets into the task struct */ - DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); - DEFINE(TASK_MM, offsetof(struct task_struct, mm)); - - /* offsets into the irq_cpustat_t struct */ - DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); - - /* offsets into the thread struct */ - DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp)); - DEFINE(THREAD_USP, offsetof(struct thread_struct, usp)); - DEFINE(THREAD_SR, offsetof(struct thread_struct, sr)); - DEFINE(THREAD_FS, offsetof(struct thread_struct, fs)); - DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp)); - DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0)); - DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp)); - DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl)); - DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate)); - - /* offsets into the pt_regs */ - DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0)); - DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0)); - DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1)); - DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2)); - DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3)); - DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4)); - DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5)); - DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0)); - DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1)); - DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2)); - DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc)); - DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr)); - -#ifdef CONFIG_COLDFIRE - /* bitfields are a bit difficult */ - DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, sr) - 2); -#else - /* bitfields are a bit difficult */ - DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4); -#endif - - /* signal defines */ - DEFINE(SIGSEGV, SIGSEGV); - DEFINE(SEGV_MAPERR, SEGV_MAPERR); - DEFINE(SIGTRAP, SIGTRAP); - DEFINE(TRAP_TRACE, TRAP_TRACE); - - DEFINE(PT_PTRACED, PT_PTRACED); - - /* Offsets in thread_info structure */ - DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); - DEFINE(TI_PREEMPTCOUNT, offsetof(struct thread_info, preempt_count)); - - return 0; -} diff --git a/arch/m68knommu/kernel/dma.c b/arch/m68knommu/kernel/dma.c deleted file mode 100644 index fc61541aeb71..000000000000 --- a/arch/m68knommu/kernel/dma.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Dynamic DMA mapping support. - * - * We never have any address translations to worry about, so this - * is just alloc/free. - */ - -#include <linux/types.h> -#include <linux/gfp.h> -#include <linux/mm.h> -#include <linux/device.h> -#include <linux/dma-mapping.h> -#include <asm/cacheflush.h> - -void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) -{ - void *ret; - /* ignore region specifiers */ - gfp &= ~(__GFP_DMA | __GFP_HIGHMEM); - - if (dev == NULL || (*dev->dma_mask < 0xffffffff)) - gfp |= GFP_DMA; - ret = (void *)__get_free_pages(gfp, get_order(size)); - - if (ret != NULL) { - memset(ret, 0, size); - *dma_handle = virt_to_phys(ret); - } - return ret; -} - -void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - free_pages((unsigned long)vaddr, get_order(size)); -} - -void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, - size_t size, enum dma_data_direction dir) -{ - switch (dir) { - case DMA_TO_DEVICE: - flush_dcache_range(handle, size); - break; - case DMA_FROM_DEVICE: - /* Should be clear already */ - break; - default: - if (printk_ratelimit()) - printk("dma_sync_single_for_device: unsupported dir %u\n", dir); - break; - } -} - -EXPORT_SYMBOL(dma_sync_single_for_device); -dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size, - enum dma_data_direction dir) -{ - dma_addr_t handle = virt_to_phys(addr); - flush_dcache_range(handle, size); - return handle; -} -EXPORT_SYMBOL(dma_map_single); - -dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir) -{ - dma_addr_t handle = page_to_phys(page) + offset; - dma_sync_single_for_device(dev, handle, size, dir); - return handle; -} -EXPORT_SYMBOL(dma_map_page); diff --git a/arch/m68knommu/kernel/entry.S b/arch/m68knommu/kernel/entry.S deleted file mode 100644 index 2783f25e38bd..000000000000 --- a/arch/m68knommu/kernel/entry.S +++ /dev/null @@ -1,134 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/entry.S - * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Kenneth Albanowski <kjahds@kjahds.com>, - * Copyright (C) 2000 Lineo Inc. (www.lineo.com) - * - * Based on: - * - * linux/arch/m68k/kernel/entry.S - * - * Copyright (C) 1991, 1992 Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file README.legal in the main directory of this archive - * for more details. - * - * Linux/m68k support by Hamish Macdonald - * - * 68060 fixes by Jesper Skov - * ColdFire support by Greg Ungerer (gerg@snapgear.com) - * 5307 fixes by David W. Miller - * linux 2.4 support David McCullough <davidm@snapgear.com> - */ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/errno.h> -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/asm-offsets.h> -#include <asm/entry.h> -#include <asm/unistd.h> - -.text - -.globl buserr -.globl trap -.globl ret_from_exception -.globl ret_from_signal -.globl sys_fork -.globl sys_clone -.globl sys_vfork - -ENTRY(buserr) - SAVE_ALL - moveq #-1,%d0 - movel %d0,%sp@(PT_OFF_ORIG_D0) - movel %sp,%sp@- /* stack frame pointer argument */ - jsr buserr_c - addql #4,%sp - jra ret_from_exception - -ENTRY(trap) - SAVE_ALL - moveq #-1,%d0 - movel %d0,%sp@(PT_OFF_ORIG_D0) - movel %sp,%sp@- /* stack frame pointer argument */ - jsr trap_c - addql #4,%sp - jra ret_from_exception - -#ifdef TRAP_DBG_INTERRUPT - -.globl dbginterrupt -ENTRY(dbginterrupt) - SAVE_ALL - moveq #-1,%d0 - movel %d0,%sp@(PT_OFF_ORIG_D0) - movel %sp,%sp@- /* stack frame pointer argument */ - jsr dbginterrupt_c - addql #4,%sp - jra ret_from_exception -#endif - -ENTRY(reschedule) - /* save top of frame */ - pea %sp@ - jbsr set_esp0 - addql #4,%sp - pea ret_from_exception - jmp schedule - -ENTRY(ret_from_fork) - movel %d1,%sp@- - jsr schedule_tail - addql #4,%sp - jra ret_from_exception - -ENTRY(sys_fork) - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr m68k_fork - addql #4,%sp - RESTORE_SWITCH_STACK - rts - -ENTRY(sys_vfork) - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr m68k_vfork - addql #4,%sp - RESTORE_SWITCH_STACK - rts - -ENTRY(sys_clone) - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr m68k_clone - addql #4,%sp - RESTORE_SWITCH_STACK - rts - -ENTRY(sys_sigreturn) - SAVE_SWITCH_STACK - jbsr do_sigreturn - RESTORE_SWITCH_STACK - rts - -ENTRY(sys_rt_sigreturn) - SAVE_SWITCH_STACK - jbsr do_rt_sigreturn - RESTORE_SWITCH_STACK - rts - -ENTRY(ret_from_user_signal) - moveq #__NR_sigreturn,%d0 - trap #0 - -ENTRY(ret_from_user_rt_signal) - movel #__NR_rt_sigreturn,%d0 - trap #0 - diff --git a/arch/m68knommu/kernel/init_task.c b/arch/m68knommu/kernel/init_task.c deleted file mode 100644 index cbf9dc3cc51d..000000000000 --- a/arch/m68knommu/kernel/init_task.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/init_task.c - */ -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/init_task.h> -#include <linux/fs.h> -#include <linux/mqueue.h> - -#include <asm/uaccess.h> -#include <asm/pgtable.h> - -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -__asm__(".align 4"); -struct task_struct init_task = INIT_TASK(init_task); - -EXPORT_SYMBOL(init_task); - -/* - * Initial thread structure. - * - * We need to make sure that this is 8192-byte aligned due to the - * way process stacks are handled. This is done by having a special - * "init_task" linker map entry.. - */ -union thread_union init_thread_union __init_task_data = - { INIT_THREAD_INFO(init_task) }; - diff --git a/arch/m68knommu/kernel/irq.c b/arch/m68knommu/kernel/irq.c deleted file mode 100644 index c7dd48f37bee..000000000000 --- a/arch/m68knommu/kernel/irq.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * irq.c - * - * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/kernel_stat.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/seq_file.h> -#include <asm/system.h> -#include <asm/traps.h> - -asmlinkage void do_IRQ(int irq, struct pt_regs *regs) -{ - struct pt_regs *oldregs = set_irq_regs(regs); - - irq_enter(); - generic_handle_irq(irq); - irq_exit(); - - set_irq_regs(oldregs); -} - -int show_interrupts(struct seq_file *p, void *v) -{ - struct irqaction *ap; - int irq = *((loff_t *) v); - - if (irq == 0) - seq_puts(p, " CPU0\n"); - - if (irq < NR_IRQS) { - struct irq_desc *desc = irq_to_desc(irq); - - ap = desc->action; - if (ap) { - seq_printf(p, "%3d: ", irq); - seq_printf(p, "%10u ", kstat_irqs(irq)); - seq_printf(p, "%14s ", get_irq_desc_chip(desc)->name); - - seq_printf(p, "%s", ap->name); - for (ap = ap->next; ap; ap = ap->next) - seq_printf(p, ", %s", ap->name); - seq_putc(p, '\n'); - } - } - - return 0; -} - diff --git a/arch/m68knommu/kernel/m68k_ksyms.c b/arch/m68knommu/kernel/m68k_ksyms.c deleted file mode 100644 index 39fe0a7aec32..000000000000 --- a/arch/m68knommu/kernel/m68k_ksyms.c +++ /dev/null @@ -1,78 +0,0 @@ -#include <linux/module.h> -#include <linux/linkage.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/user.h> -#include <linux/elfcore.h> -#include <linux/in6.h> -#include <linux/interrupt.h> - -#include <asm/setup.h> -#include <asm/machdep.h> -#include <asm/pgalloc.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/checksum.h> -#include <asm/current.h> - -extern int dump_fpu(struct pt_regs *, elf_fpregset_t *); - -/* platform dependent support */ - -EXPORT_SYMBOL(__ioremap); -EXPORT_SYMBOL(iounmap); -EXPORT_SYMBOL(dump_fpu); - -EXPORT_SYMBOL(ip_fast_csum); - -EXPORT_SYMBOL(kernel_thread); - -/* Networking helper routines. */ -EXPORT_SYMBOL(csum_partial_copy_nocheck); - -/* The following are special because they're not called - explicitly (the C compiler generates them). Fortunately, - their interface isn't gonna change any time soon now, so - it's OK to leave it out of version control. */ -EXPORT_SYMBOL(memcpy); -EXPORT_SYMBOL(memset); - -/* - * libgcc functions - functions that are used internally by the - * compiler... (prototypes are not correct though, but that - * doesn't really matter since they're not versioned). - */ -extern void __ashldi3(void); -extern void __ashrdi3(void); -extern void __divsi3(void); -extern void __lshrdi3(void); -extern void __modsi3(void); -extern void __muldi3(void); -extern void __mulsi3(void); -extern void __udivsi3(void); -extern void __umodsi3(void); - - /* gcc lib functions */ -EXPORT_SYMBOL(__ashldi3); -EXPORT_SYMBOL(__ashrdi3); -EXPORT_SYMBOL(__divsi3); -EXPORT_SYMBOL(__lshrdi3); -EXPORT_SYMBOL(__modsi3); -EXPORT_SYMBOL(__muldi3); -EXPORT_SYMBOL(__mulsi3); -EXPORT_SYMBOL(__udivsi3); -EXPORT_SYMBOL(__umodsi3); - -#ifdef CONFIG_COLDFIRE -extern unsigned int *dma_device_address; -extern unsigned long dma_base_addr, _ramend; -EXPORT_SYMBOL(dma_base_addr); -EXPORT_SYMBOL(dma_device_address); -EXPORT_SYMBOL(_ramend); - -extern asmlinkage void trap(void); -extern void *_ramvec; -EXPORT_SYMBOL(trap); -EXPORT_SYMBOL(_ramvec); -#endif /* CONFIG_COLDFIRE */ diff --git a/arch/m68knommu/kernel/module.c b/arch/m68knommu/kernel/module.c deleted file mode 100644 index d11ffae7956a..000000000000 --- a/arch/m68knommu/kernel/module.c +++ /dev/null @@ -1,126 +0,0 @@ -#include <linux/moduleloader.h> -#include <linux/elf.h> -#include <linux/vmalloc.h> -#include <linux/fs.h> -#include <linux/string.h> -#include <linux/kernel.h> - -#if 0 -#define DEBUGP printk -#else -#define DEBUGP(fmt...) -#endif - -void *module_alloc(unsigned long size) -{ - if (size == 0) - return NULL; - return vmalloc(size); -} - - -/* Free memory returned from module_alloc */ -void module_free(struct module *mod, void *module_region) -{ - vfree(module_region); -} - -/* We don't need anything special. */ -int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, - char *secstrings, - struct module *mod) -{ - return 0; -} - -int apply_relocate(Elf32_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - unsigned int i; - Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; - uint32_t *location; - - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ - location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr - + rel[i].r_offset; - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr - + ELF32_R_SYM(rel[i].r_info); - - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_68K_32: - /* We add the value into the location given */ - *location += sym->st_value; - break; - case R_68K_PC32: - /* Add the value, subtract its postition */ - *location += sym->st_value - (uint32_t)location; - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", - me->name, ELF32_R_TYPE(rel[i].r_info)); - return -ENOEXEC; - } - } - return 0; -} - -int apply_relocate_add(Elf32_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - unsigned int i; - Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; - uint32_t *location; - - DEBUGP("Applying relocate_add section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ - location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr - + rel[i].r_offset; - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr - + ELF32_R_SYM(rel[i].r_info); - - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_68K_32: - /* We add the value into the location given */ - *location = rel[i].r_addend + sym->st_value; - break; - case R_68K_PC32: - /* Add the value, subtract its postition */ - *location = rel[i].r_addend + sym->st_value - (uint32_t)location; - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", - me->name, ELF32_R_TYPE(rel[i].r_info)); - return -ENOEXEC; - } - } - return 0; -} - -int module_finalize(const Elf_Ehdr *hdr, - const Elf_Shdr *sechdrs, - struct module *me) -{ - return 0; -} - -void module_arch_cleanup(struct module *mod) -{ -} diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c deleted file mode 100644 index e2a63af5d517..000000000000 --- a/arch/m68knommu/kernel/process.c +++ /dev/null @@ -1,404 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/process.c - * - * Copyright (C) 1995 Hamish Macdonald - * - * 68060 fixes by Jesper Skov - * - * uClinux changes - * Copyright (C) 2000-2002, David McCullough <davidm@snapgear.com> - */ - -/* - * This file handles the architecture-dependent parts of process handling.. - */ - -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/interrupt.h> -#include <linux/reboot.h> -#include <linux/fs.h> -#include <linux/slab.h> - -#include <asm/uaccess.h> -#include <asm/system.h> -#include <asm/traps.h> -#include <asm/machdep.h> -#include <asm/setup.h> -#include <asm/pgtable.h> - -asmlinkage void ret_from_fork(void); - -/* - * The following aren't currently used. - */ -void (*pm_idle)(void); -EXPORT_SYMBOL(pm_idle); - -void (*pm_power_off)(void); -EXPORT_SYMBOL(pm_power_off); - -/* - * The idle loop on an m68knommu.. - */ -static void default_idle(void) -{ - local_irq_disable(); - while (!need_resched()) { - /* This stop will re-enable interrupts */ - __asm__("stop #0x2000" : : : "cc"); - local_irq_disable(); - } - local_irq_enable(); -} - -void (*idle)(void) = default_idle; - -/* - * The idle thread. There's no useful work to be - * done, so just try to conserve power and have a - * low exit latency (ie sit in a loop waiting for - * somebody to say that they'd like to reschedule) - */ -void cpu_idle(void) -{ - /* endless idle loop with no priority at all */ - while (1) { - idle(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } -} - -void machine_restart(char * __unused) -{ - if (mach_reset) - mach_reset(); - for (;;); -} - -void machine_halt(void) -{ - if (mach_halt) - mach_halt(); - for (;;); -} - -void machine_power_off(void) -{ - if (mach_power_off) - mach_power_off(); - for (;;); -} - -void show_regs(struct pt_regs * regs) -{ - printk(KERN_NOTICE "\n"); - printk(KERN_NOTICE "Format %02x Vector: %04x PC: %08lx Status: %04x %s\n", - regs->format, regs->vector, regs->pc, regs->sr, print_tainted()); - printk(KERN_NOTICE "ORIG_D0: %08lx D0: %08lx A2: %08lx A1: %08lx\n", - regs->orig_d0, regs->d0, regs->a2, regs->a1); - printk(KERN_NOTICE "A0: %08lx D5: %08lx D4: %08lx\n", - regs->a0, regs->d5, regs->d4); - printk(KERN_NOTICE "D3: %08lx D2: %08lx D1: %08lx\n", - regs->d3, regs->d2, regs->d1); - if (!(regs->sr & PS_S)) - printk(KERN_NOTICE "USP: %08lx\n", rdusp()); -} - -/* - * Create a kernel thread - */ -int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) -{ - int retval; - long clone_arg = flags | CLONE_VM; - mm_segment_t fs; - - fs = get_fs(); - set_fs(KERNEL_DS); - - __asm__ __volatile__ ( - "movel %%sp, %%d2\n\t" - "movel %5, %%d1\n\t" - "movel %1, %%d0\n\t" - "trap #0\n\t" - "cmpl %%sp, %%d2\n\t" - "jeq 1f\n\t" - "movel %3, %%sp@-\n\t" - "jsr %4@\n\t" - "movel %2, %%d0\n\t" - "trap #0\n" - "1:\n\t" - "movel %%d0, %0\n" - : "=d" (retval) - : "i" (__NR_clone), - "i" (__NR_exit), - "a" (arg), - "a" (fn), - "a" (clone_arg) - : "cc", "%d0", "%d1", "%d2"); - - set_fs(fs); - return retval; -} - -void flush_thread(void) -{ -#ifdef CONFIG_FPU - unsigned long zero = 0; -#endif - set_fs(USER_DS); - current->thread.fs = __USER_DS; -#ifdef CONFIG_FPU - if (!FPU_IS_EMU) - asm volatile (".chip 68k/68881\n\t" - "frestore %0@\n\t" - ".chip 68k" : : "a" (&zero)); -#endif -} - -/* - * "m68k_fork()".. By the time we get here, the - * non-volatile registers have also been saved on the - * stack. We do some ugly pointer stuff here.. (see - * also copy_thread) - */ - -asmlinkage int m68k_fork(struct pt_regs *regs) -{ - /* fork almost works, enough to trick you into looking elsewhere :-( */ - return(-EINVAL); -} - -asmlinkage int m68k_vfork(struct pt_regs *regs) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, NULL, NULL); -} - -asmlinkage int m68k_clone(struct pt_regs *regs) -{ - unsigned long clone_flags; - unsigned long newsp; - - /* syscall2 puts clone_flags in d1 and usp in d2 */ - clone_flags = regs->d1; - newsp = regs->d2; - if (!newsp) - newsp = rdusp(); - return do_fork(clone_flags, newsp, regs, 0, NULL, NULL); -} - -int copy_thread(unsigned long clone_flags, - unsigned long usp, unsigned long topstk, - struct task_struct * p, struct pt_regs * regs) -{ - struct pt_regs * childregs; - struct switch_stack * childstack, *stack; - unsigned long *retp; - - childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1; - - *childregs = *regs; - childregs->d0 = 0; - - retp = ((unsigned long *) regs); - stack = ((struct switch_stack *) retp) - 1; - - childstack = ((struct switch_stack *) childregs) - 1; - *childstack = *stack; - childstack->retpc = (unsigned long)ret_from_fork; - - p->thread.usp = usp; - p->thread.ksp = (unsigned long)childstack; - - if (clone_flags & CLONE_SETTLS) - task_thread_info(p)->tp_value = regs->d5; - - /* - * Must save the current SFC/DFC value, NOT the value when - * the parent was last descheduled - RGH 10-08-96 - */ - p->thread.fs = get_fs().seg; - -#ifdef CONFIG_FPU - if (!FPU_IS_EMU) { - /* Copy the current fpu state */ - asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory"); - - if (p->thread.fpstate[0]) - asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t" - "fmoveml %/fpiar/%/fpcr/%/fpsr,%1" - : : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0]) - : "memory"); - /* Restore the state in case the fpu was busy */ - asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0])); - } -#endif - - return 0; -} - -/* Fill in the fpu structure for a core dump. */ - -int dump_fpu(struct pt_regs *regs, struct user_m68kfp_struct *fpu) -{ -#ifdef CONFIG_FPU - char fpustate[216]; - - if (FPU_IS_EMU) { - int i; - - memcpy(fpu->fpcntl, current->thread.fpcntl, 12); - memcpy(fpu->fpregs, current->thread.fp, 96); - /* Convert internal fpu reg representation - * into long double format - */ - for (i = 0; i < 24; i += 3) - fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) | - ((fpu->fpregs[i] & 0x0000ffff) << 16); - return 1; - } - - /* First dump the fpu context to avoid protocol violation. */ - asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory"); - if (!fpustate[0]) - return 0; - - asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0" - :: "m" (fpu->fpcntl[0]) - : "memory"); - asm volatile ("fmovemx %/fp0-%/fp7,%0" - :: "m" (fpu->fpregs[0]) - : "memory"); -#endif - return 1; -} - -/* - * Generic dumping code. Used for panic and debug. - */ -void dump(struct pt_regs *fp) -{ - unsigned long *sp; - unsigned char *tp; - int i; - - printk(KERN_EMERG "\nCURRENT PROCESS:\n\n"); - printk(KERN_EMERG "COMM=%s PID=%d\n", current->comm, current->pid); - - if (current->mm) { - printk(KERN_EMERG "TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n", - (int) current->mm->start_code, - (int) current->mm->end_code, - (int) current->mm->start_data, - (int) current->mm->end_data, - (int) current->mm->end_data, - (int) current->mm->brk); - printk(KERN_EMERG "USER-STACK=%08x KERNEL-STACK=%08x\n\n", - (int) current->mm->start_stack, - (int)(((unsigned long) current) + THREAD_SIZE)); - } - - printk(KERN_EMERG "PC: %08lx\n", fp->pc); - printk(KERN_EMERG "SR: %08lx SP: %08lx\n", (long) fp->sr, (long) fp); - printk(KERN_EMERG "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", - fp->d0, fp->d1, fp->d2, fp->d3); - printk(KERN_EMERG "d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", - fp->d4, fp->d5, fp->a0, fp->a1); - printk(KERN_EMERG "\nUSP: %08x TRAPFRAME: %p\n", - (unsigned int) rdusp(), fp); - - printk(KERN_EMERG "\nCODE:"); - tp = ((unsigned char *) fp->pc) - 0x20; - for (sp = (unsigned long *) tp, i = 0; (i < 0x40); i += 4) { - if ((i % 0x10) == 0) - printk(KERN_EMERG "%p: ", tp + i); - printk("%08x ", (int) *sp++); - } - printk(KERN_EMERG "\n"); - - printk(KERN_EMERG "KERNEL STACK:"); - tp = ((unsigned char *) fp) - 0x40; - for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) { - if ((i % 0x10) == 0) - printk(KERN_EMERG "%p: ", tp + i); - printk("%08x ", (int) *sp++); - } - printk(KERN_EMERG "\n"); - - printk(KERN_EMERG "USER STACK:"); - tp = (unsigned char *) (rdusp() - 0x10); - for (sp = (unsigned long *) tp, i = 0; (i < 0x80); i += 4) { - if ((i % 0x10) == 0) - printk(KERN_EMERG "%p: ", tp + i); - printk("%08x ", (int) *sp++); - } - printk(KERN_EMERG "\n"); -} - -/* - * sys_execve() executes a new program. - */ -asmlinkage int sys_execve(const char *name, - const char *const *argv, - const char *const *envp) -{ - int error; - char * filename; - struct pt_regs *regs = (struct pt_regs *) &name; - - filename = getname(name); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - return error; - error = do_execve(filename, argv, envp, regs); - putname(filename); - return error; -} - -unsigned long get_wchan(struct task_struct *p) -{ - unsigned long fp, pc; - unsigned long stack_page; - int count = 0; - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - - stack_page = (unsigned long)p; - fp = ((struct switch_stack *)p->thread.ksp)->a6; - do { - if (fp < stack_page+sizeof(struct thread_info) || - fp >= THREAD_SIZE-8+stack_page) - return 0; - pc = ((unsigned long *)fp)[1]; - if (!in_sched_functions(pc)) - return pc; - fp = *(unsigned long *) fp; - } while (count++ < 16); - return 0; -} - -/* - * Return saved PC of a blocked thread. - */ -unsigned long thread_saved_pc(struct task_struct *tsk) -{ - struct switch_stack *sw = (struct switch_stack *)tsk->thread.ksp; - - /* Check whether the thread is blocked in resume() */ - if (in_sched_functions(sw->retpc)) - return ((unsigned long *)sw->a6)[1]; - else - return sw->retpc; -} - diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c deleted file mode 100644 index 6709fb707335..000000000000 --- a/arch/m68knommu/kernel/ptrace.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/ptrace.c - * - * Copyright (C) 1994 by Hamish Macdonald - * Taken from linux/kernel/ptrace.c and modified for M680x0. - * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of - * this archive for more details. - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/errno.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/signal.h> -#include <linux/tracehook.h> - -#include <asm/uaccess.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/system.h> -#include <asm/processor.h> - -/* - * does not yet catch signals sent when the child dies. - * in exit.c or in signal.c. - */ - -/* determines which bits in the SR the user has access to. */ -/* 1 = access 0 = no access */ -#define SR_MASK 0x001f - -/* sets the trace bits. */ -#define TRACE_BITS 0x8000 - -/* Find the stack offset for a register, relative to thread.esp0. */ -#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg) -#define SW_REG(reg) ((long)&((struct switch_stack *)0)->reg \ - - sizeof(struct switch_stack)) -/* Mapping from PT_xxx to the stack offset at which the register is - saved. Notice that usp has no stack-slot and needs to be treated - specially (see get_reg/put_reg below). */ -static int regoff[] = { - PT_REG(d1), PT_REG(d2), PT_REG(d3), PT_REG(d4), - PT_REG(d5), SW_REG(d6), SW_REG(d7), PT_REG(a0), - PT_REG(a1), PT_REG(a2), SW_REG(a3), SW_REG(a4), - SW_REG(a5), SW_REG(a6), PT_REG(d0), -1, - PT_REG(orig_d0), PT_REG(sr), PT_REG(pc), -}; - -/* - * Get contents of register REGNO in task TASK. - */ -static inline long get_reg(struct task_struct *task, int regno) -{ - unsigned long *addr; - - if (regno == PT_USP) - addr = &task->thread.usp; - else if (regno < ARRAY_SIZE(regoff)) - addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); - else - return 0; - return *addr; -} - -/* - * Write contents of register REGNO in task TASK. - */ -static inline int put_reg(struct task_struct *task, int regno, - unsigned long data) -{ - unsigned long *addr; - - if (regno == PT_USP) - addr = &task->thread.usp; - else if (regno < ARRAY_SIZE(regoff)) - addr = (unsigned long *) (task->thread.esp0 + regoff[regno]); - else - return -1; - *addr = data; - return 0; -} - -void user_enable_single_step(struct task_struct *task) -{ - unsigned long srflags; - srflags = get_reg(task, PT_SR) | (TRACE_BITS << 16); - put_reg(task, PT_SR, srflags); -} - -void user_disable_single_step(struct task_struct *task) -{ - unsigned long srflags; - srflags = get_reg(task, PT_SR) & ~(TRACE_BITS << 16); - put_reg(task, PT_SR, srflags); -} - -/* - * Called by kernel/ptrace.c when detaching.. - * - * Make sure the single step bit is not set. - */ -void ptrace_disable(struct task_struct *child) -{ - /* make sure the single step bit is not set. */ - user_disable_single_step(child); -} - -long arch_ptrace(struct task_struct *child, long request, - unsigned long addr, unsigned long data) -{ - int ret; - int regno = addr >> 2; - unsigned long __user *datap = (unsigned long __user *) data; - - switch (request) { - /* read the word at location addr in the USER area. */ - case PTRACE_PEEKUSR: { - unsigned long tmp; - - ret = -EIO; - if ((addr & 3) || addr > sizeof(struct user) - 3) - break; - - tmp = 0; /* Default return condition */ - ret = -EIO; - if (regno < 19) { - tmp = get_reg(child, regno); - if (regno == PT_SR) - tmp >>= 16; - } else if (regno >= 21 && regno < 49) { - tmp = child->thread.fp[regno - 21]; - } else if (regno == 49) { - tmp = child->mm->start_code; - } else if (regno == 50) { - tmp = child->mm->start_data; - } else if (regno == 51) { - tmp = child->mm->end_code; - } else - break; - ret = put_user(tmp, datap); - break; - } - - case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ - ret = -EIO; - if ((addr & 3) || addr > sizeof(struct user) - 3) - break; - - if (regno == PT_SR) { - data &= SR_MASK; - data <<= 16; - data |= get_reg(child, PT_SR) & ~(SR_MASK << 16); - } - if (regno < 19) { - if (put_reg(child, regno, data)) - break; - ret = 0; - break; - } - if (regno >= 21 && regno < 48) - { - child->thread.fp[regno - 21] = data; - ret = 0; - } - break; - - case PTRACE_GETREGS: { /* Get all gp regs from the child. */ - int i; - unsigned long tmp; - for (i = 0; i < 19; i++) { - tmp = get_reg(child, i); - if (i == PT_SR) - tmp >>= 16; - if (put_user(tmp, datap)) { - ret = -EFAULT; - break; - } - datap++; - } - ret = 0; - break; - } - - case PTRACE_SETREGS: { /* Set all gp regs in the child. */ - int i; - unsigned long tmp; - for (i = 0; i < 19; i++) { - if (get_user(tmp, datap)) { - ret = -EFAULT; - break; - } - if (i == PT_SR) { - tmp &= SR_MASK; - tmp <<= 16; - tmp |= get_reg(child, PT_SR) & ~(SR_MASK << 16); - } - put_reg(child, i, tmp); - datap++; - } - ret = 0; - break; - } - -#ifdef PTRACE_GETFPREGS - case PTRACE_GETFPREGS: { /* Get the child FPU state. */ - ret = 0; - if (copy_to_user(datap, &child->thread.fp, - sizeof(struct user_m68kfp_struct))) - ret = -EFAULT; - break; - } -#endif - -#ifdef PTRACE_SETFPREGS - case PTRACE_SETFPREGS: { /* Set the child FPU state. */ - ret = 0; - if (copy_from_user(&child->thread.fp, datap, - sizeof(struct user_m68kfp_struct))) - ret = -EFAULT; - break; - } -#endif - - case PTRACE_GET_THREAD_AREA: - ret = put_user(task_thread_info(child)->tp_value, datap); - break; - - default: - ret = ptrace_request(child, request, addr, data); - break; - } - return ret; -} - -asmlinkage int syscall_trace_enter(void) -{ - int ret = 0; - - if (test_thread_flag(TIF_SYSCALL_TRACE)) - ret = tracehook_report_syscall_entry(task_pt_regs(current)); - return ret; -} - -asmlinkage void syscall_trace_leave(void) -{ - if (test_thread_flag(TIF_SYSCALL_TRACE)) - tracehook_report_syscall_exit(task_pt_regs(current), 0); -} diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68knommu/kernel/setup.c deleted file mode 100644 index 16b2de7f5101..000000000000 --- a/arch/m68knommu/kernel/setup.c +++ /dev/null @@ -1,317 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/setup.c - * - * Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org> - * Copyleft ()) 2000 James D. Schettine {james@telos-systems.com} - * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> - * Copyright (C) 1995 Hamish Macdonald - * Copyright (C) 2000 Lineo Inc. (www.lineo.com) - * Copyright (C) 2001 Lineo, Inc. <www.lineo.com> - * - * 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca> - */ - -/* - * This file handles the architecture-dependent parts of system setup - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/fb.h> -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/console.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/bootmem.h> -#include <linux/seq_file.h> -#include <linux/init.h> -#include <linux/initrd.h> -#include <linux/root_dev.h> - -#include <asm/setup.h> -#include <asm/irq.h> -#include <asm/machdep.h> -#include <asm/pgtable.h> - -unsigned long memory_start; -unsigned long memory_end; - -EXPORT_SYMBOL(memory_start); -EXPORT_SYMBOL(memory_end); - -char __initdata command_line[COMMAND_LINE_SIZE]; - -/* machine dependent timer functions */ -void (*mach_gettod)(int*, int*, int*, int*, int*, int*); -int (*mach_set_clock_mmss)(unsigned long); - -/* machine dependent reboot functions */ -void (*mach_reset)(void); -void (*mach_halt)(void); -void (*mach_power_off)(void); - -#ifdef CONFIG_M68328 -#define CPU_NAME "MC68328" -#endif -#ifdef CONFIG_M68EZ328 -#define CPU_NAME "MC68EZ328" -#endif -#ifdef CONFIG_M68VZ328 -#define CPU_NAME "MC68VZ328" -#endif -#ifdef CONFIG_M68360 -#define CPU_NAME "MC68360" -#endif -#ifndef CPU_NAME -#define CPU_NAME "UNKNOWN" -#endif - -/* - * Different cores have different instruction execution timings. - * The old/traditional 68000 cores are basically all the same, at 16. - * The ColdFire cores vary a little, their values are defined in their - * headers. We default to the standard 68000 value here. - */ -#ifndef CPU_INSTR_PER_JIFFY -#define CPU_INSTR_PER_JIFFY 16 -#endif - -extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end; -extern int _ramstart, _ramend; - -#if defined(CONFIG_UBOOT) -/* - * parse_uboot_commandline - * - * Copies u-boot commandline arguments and store them in the proper linux - * variables. - * - * Assumes: - * _init_sp global contains the address in the stack pointer when the - * kernel starts (see head.S::_start) - * - * U-Boot calling convention: - * (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end); - * - * _init_sp can be parsed as such - * - * _init_sp+00 = u-boot cmd after jsr into kernel (skip) - * _init_sp+04 = &kernel board_info (residual data) - * _init_sp+08 = &initrd_start - * _init_sp+12 = &initrd_end - * _init_sp+16 = &cmd_start - * _init_sp+20 = &cmd_end - * - * This also assumes that the memory locations pointed to are still - * unmodified. U-boot places them near the end of external SDRAM. - * - * Argument(s): - * commandp = the linux commandline arg container to fill. - * size = the sizeof commandp. - * - * Returns: - */ -void parse_uboot_commandline(char *commandp, int size) -{ - extern unsigned long _init_sp; - unsigned long *sp; - unsigned long uboot_kbd; - unsigned long uboot_initrd_start, uboot_initrd_end; - unsigned long uboot_cmd_start, uboot_cmd_end; - - - sp = (unsigned long *)_init_sp; - uboot_kbd = sp[1]; - uboot_initrd_start = sp[2]; - uboot_initrd_end = sp[3]; - uboot_cmd_start = sp[4]; - uboot_cmd_end = sp[5]; - - if (uboot_cmd_start && uboot_cmd_end) - strncpy(commandp, (const char *)uboot_cmd_start, size); -#if defined(CONFIG_BLK_DEV_INITRD) - if (uboot_initrd_start && uboot_initrd_end && - (uboot_initrd_end > uboot_initrd_start)) { - initrd_start = uboot_initrd_start; - initrd_end = uboot_initrd_end; - ROOT_DEV = Root_RAM0; - printk(KERN_INFO "initrd at 0x%lx:0x%lx\n", - initrd_start, initrd_end); - } -#endif /* if defined(CONFIG_BLK_DEV_INITRD) */ -} -#endif /* #if defined(CONFIG_UBOOT) */ - -void __init setup_arch(char **cmdline_p) -{ - int bootmap_size; - - memory_start = PAGE_ALIGN(_ramstart); - memory_end = _ramend; - - init_mm.start_code = (unsigned long) &_stext; - init_mm.end_code = (unsigned long) &_etext; - init_mm.end_data = (unsigned long) &_edata; - init_mm.brk = (unsigned long) 0; - - config_BSP(&command_line[0], sizeof(command_line)); - -#if defined(CONFIG_BOOTPARAM) - strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line)); - command_line[sizeof(command_line) - 1] = 0; -#endif /* CONFIG_BOOTPARAM */ - -#if defined(CONFIG_UBOOT) - /* CONFIG_UBOOT and CONFIG_BOOTPARAM defined, concatenate cmdline */ - #if defined(CONFIG_BOOTPARAM) - /* Add the whitespace separator */ - command_line[strlen(CONFIG_BOOTPARAM_STRING)] = ' '; - /* Parse uboot command line into the rest of the buffer */ - parse_uboot_commandline( - &command_line[(strlen(CONFIG_BOOTPARAM_STRING)+1)], - (sizeof(command_line) - - (strlen(CONFIG_BOOTPARAM_STRING)+1))); - /* Only CONFIG_UBOOT defined, create cmdline */ - #else - parse_uboot_commandline(&command_line[0], sizeof(command_line)); - #endif /* CONFIG_BOOTPARAM */ - command_line[sizeof(command_line) - 1] = 0; -#endif /* CONFIG_UBOOT */ - - printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU_NAME "\n"); - -#ifdef CONFIG_UCDIMM - printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n"); -#endif -#ifdef CONFIG_M68VZ328 - printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n"); -#endif -#ifdef CONFIG_COLDFIRE - printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n"); -#ifdef CONFIG_M5307 - printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n"); -#endif -#ifdef CONFIG_ELITE - printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n"); -#endif -#endif - printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n"); - -#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 ) - printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n"); -#endif -#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 ) - printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n"); -#endif -#if defined (CONFIG_M68360) - printk(KERN_INFO "QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n"); - printk(KERN_INFO "based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n"); -#endif -#ifdef CONFIG_DRAGEN2 - printk(KERN_INFO "DragonEngine II board support by Georges Menie\n"); -#endif -#ifdef CONFIG_M5235EVB - printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n"); -#endif - - pr_debug("KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x " - "BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext, - (int) &_sdata, (int) &_edata, - (int) &_sbss, (int) &_ebss); - pr_debug("MEMORY -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x\n ", - (int) &_ebss, (int) memory_start, - (int) memory_start, (int) memory_end); - - /* Keep a copy of command line */ - *cmdline_p = &command_line[0]; - memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); - boot_command_line[COMMAND_LINE_SIZE-1] = 0; - -#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE) - conswitchp = &dummy_con; -#endif - - /* - * Give all the memory to the bootmap allocator, tell it to put the - * boot mem_map at the start of memory. - */ - bootmap_size = init_bootmem_node( - NODE_DATA(0), - memory_start >> PAGE_SHIFT, /* map goes here */ - PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */ - memory_end >> PAGE_SHIFT); - /* - * Free the usable memory, we have to make sure we do not free - * the bootmem bitmap so we then reserve it after freeing it :-) - */ - free_bootmem(memory_start, memory_end - memory_start); - reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT); - -#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD) - if ((initrd_start > 0) && (initrd_start < initrd_end) && - (initrd_end < memory_end)) - reserve_bootmem(initrd_start, initrd_end - initrd_start, - BOOTMEM_DEFAULT); -#endif /* if defined(CONFIG_BLK_DEV_INITRD) */ - - /* - * Get kmalloc into gear. - */ - paging_init(); -} - -/* - * Get CPU information for use by the procfs. - */ -static int show_cpuinfo(struct seq_file *m, void *v) -{ - char *cpu, *mmu, *fpu; - u_long clockfreq; - - cpu = CPU_NAME; - mmu = "none"; - fpu = "none"; - clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY; - - seq_printf(m, "CPU:\t\t%s\n" - "MMU:\t\t%s\n" - "FPU:\t\t%s\n" - "Clocking:\t%lu.%1luMHz\n" - "BogoMips:\t%lu.%02lu\n" - "Calibration:\t%lu loops\n", - cpu, mmu, fpu, - clockfreq / 1000000, - (clockfreq / 100000) % 10, - (loops_per_jiffy * HZ) / 500000, - ((loops_per_jiffy * HZ) / 5000) % 100, - (loops_per_jiffy * HZ)); - - return 0; -} - -static void *c_start(struct seq_file *m, loff_t *pos) -{ - return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL; -} - -static void *c_next(struct seq_file *m, void *v, loff_t *pos) -{ - ++*pos; - return c_start(m, pos); -} - -static void c_stop(struct seq_file *m, void *v) -{ -} - -const struct seq_operations cpuinfo_op = { - .start = c_start, - .next = c_next, - .stop = c_stop, - .show = show_cpuinfo, -}; - diff --git a/arch/m68knommu/kernel/signal.c b/arch/m68knommu/kernel/signal.c deleted file mode 100644 index 36a81bb6835a..000000000000 --- a/arch/m68knommu/kernel/signal.c +++ /dev/null @@ -1,765 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/signal.c - * - * Copyright (C) 1991, 1992 Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/* - * Linux/m68k support by Hamish Macdonald - * - * 68060 fixes by Jesper Skov - * - * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab - * - * mathemu support by Roman Zippel - * (Note: fpstate in the signal context is completely ignored for the emulator - * and the internal floating point format is put on stack) - */ - -/* - * ++roman (07/09/96): implemented signal stacks (specially for tosemu on - * Atari :-) Current limitation: Only one sigstack can be active at one time. - * If a second signal with SA_ONSTACK set arrives while working on a sigstack, - * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested - * signal handlers! - */ - -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/syscalls.h> -#include <linux/errno.h> -#include <linux/wait.h> -#include <linux/ptrace.h> -#include <linux/unistd.h> -#include <linux/stddef.h> -#include <linux/highuid.h> -#include <linux/tty.h> -#include <linux/personality.h> -#include <linux/binfmts.h> - -#include <asm/setup.h> -#include <asm/uaccess.h> -#include <asm/pgtable.h> -#include <asm/traps.h> -#include <asm/ucontext.h> - -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - -void ret_from_user_signal(void); -void ret_from_user_rt_signal(void); - -/* - * Atomically swap in the new signal mask, and wait for a signal. - */ -asmlinkage int -sys_sigsuspend(int unused0, int unused1, old_sigset_t mask) -{ - mask &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); - current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, mask); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - current->state = TASK_INTERRUPTIBLE; - schedule(); - set_restore_sigmask(); - - return -ERESTARTNOHAND; -} - -asmlinkage int -sys_sigaction(int sig, const struct old_sigaction __user *act, - struct old_sigaction __user *oact) -{ - struct k_sigaction new_ka, old_ka; - int ret; - - if (act) { - old_sigset_t mask; - if (!access_ok(VERIFY_READ, act, sizeof(*act)) || - __get_user(new_ka.sa.sa_handler, &act->sa_handler) || - __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) || - __get_user(new_ka.sa.sa_flags, &act->sa_flags) || - __get_user(mask, &act->sa_mask)) - return -EFAULT; - siginitset(&new_ka.sa.sa_mask, mask); - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || - __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || - __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) || - __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || - __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) - return -EFAULT; - } - - return ret; -} - -asmlinkage int -sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) -{ - return do_sigaltstack(uss, uoss, rdusp()); -} - - -/* - * Do a signal return; undo the signal stack. - * - * Keep the return code on the stack quadword aligned! - * That makes the cache flush below easier. - */ - -struct sigframe -{ - char __user *pretcode; - int sig; - int code; - struct sigcontext __user *psc; - char retcode[8]; - unsigned long extramask[_NSIG_WORDS-1]; - struct sigcontext sc; -}; - -struct rt_sigframe -{ - char __user *pretcode; - int sig; - struct siginfo __user *pinfo; - void __user *puc; - char retcode[8]; - struct siginfo info; - struct ucontext uc; -}; - -#ifdef CONFIG_FPU - -static unsigned char fpu_version = 0; /* version number of fpu, set by setup_frame */ - -static inline int restore_fpu_state(struct sigcontext *sc) -{ - int err = 1; - - if (FPU_IS_EMU) { - /* restore registers */ - memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12); - memcpy(current->thread.fp, sc->sc_fpregs, 24); - return 0; - } - - if (sc->sc_fpstate[0]) { - /* Verify the frame format. */ - if (sc->sc_fpstate[0] != fpu_version) - goto out; - - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %0,%%fp0-%%fp1\n\t" - "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" - ".chip 68k" - : /* no outputs */ - : "m" (*sc->sc_fpregs), "m" (*sc->sc_fpcntl)); - } - __asm__ volatile (".chip 68k/68881\n\t" - "frestore %0\n\t" - ".chip 68k" : : "m" (*sc->sc_fpstate)); - err = 0; - -out: - return err; -} - -#define FPCONTEXT_SIZE 216 -#define uc_fpstate uc_filler[0] -#define uc_formatvec uc_filler[FPCONTEXT_SIZE/4] -#define uc_extra uc_filler[FPCONTEXT_SIZE/4+1] - -static inline int rt_restore_fpu_state(struct ucontext __user *uc) -{ - unsigned char fpstate[FPCONTEXT_SIZE]; - int context_size = 0; - fpregset_t fpregs; - int err = 1; - - if (FPU_IS_EMU) { - /* restore fpu control register */ - if (__copy_from_user(current->thread.fpcntl, - uc->uc_mcontext.fpregs.f_fpcntl, 12)) - goto out; - /* restore all other fpu register */ - if (__copy_from_user(current->thread.fp, - uc->uc_mcontext.fpregs.f_fpregs, 96)) - goto out; - return 0; - } - - if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate)) - goto out; - if (fpstate[0]) { - context_size = fpstate[1]; - - /* Verify the frame format. */ - if (fpstate[0] != fpu_version) - goto out; - if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs, - sizeof(fpregs))) - goto out; - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %0,%%fp0-%%fp7\n\t" - "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" - ".chip 68k" - : /* no outputs */ - : "m" (*fpregs.f_fpregs), - "m" (*fpregs.f_fpcntl)); - } - if (context_size && - __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1, - context_size)) - goto out; - __asm__ volatile (".chip 68k/68881\n\t" - "frestore %0\n\t" - ".chip 68k" : : "m" (*fpstate)); - err = 0; - -out: - return err; -} - -#endif - -static inline int -restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp, - int *pd0) -{ - int formatvec; - struct sigcontext context; - int err = 0; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - /* get previous context */ - if (copy_from_user(&context, usc, sizeof(context))) - goto badframe; - - /* restore passed registers */ - regs->d1 = context.sc_d1; - regs->a0 = context.sc_a0; - regs->a1 = context.sc_a1; - ((struct switch_stack *)regs - 1)->a5 = context.sc_a5; - regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff); - regs->pc = context.sc_pc; - regs->orig_d0 = -1; /* disable syscall checks */ - wrusp(context.sc_usp); - formatvec = context.sc_formatvec; - regs->format = formatvec >> 12; - regs->vector = formatvec & 0xfff; - -#ifdef CONFIG_FPU - err = restore_fpu_state(&context); -#endif - - *pd0 = context.sc_d0; - return err; - -badframe: - return 1; -} - -static inline int -rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, - struct ucontext __user *uc, int *pd0) -{ - int temp; - greg_t __user *gregs = uc->uc_mcontext.gregs; - unsigned long usp; - int err; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - err = __get_user(temp, &uc->uc_mcontext.version); - if (temp != MCONTEXT_VERSION) - goto badframe; - /* restore passed registers */ - err |= __get_user(regs->d0, &gregs[0]); - err |= __get_user(regs->d1, &gregs[1]); - err |= __get_user(regs->d2, &gregs[2]); - err |= __get_user(regs->d3, &gregs[3]); - err |= __get_user(regs->d4, &gregs[4]); - err |= __get_user(regs->d5, &gregs[5]); - err |= __get_user(sw->d6, &gregs[6]); - err |= __get_user(sw->d7, &gregs[7]); - err |= __get_user(regs->a0, &gregs[8]); - err |= __get_user(regs->a1, &gregs[9]); - err |= __get_user(regs->a2, &gregs[10]); - err |= __get_user(sw->a3, &gregs[11]); - err |= __get_user(sw->a4, &gregs[12]); - err |= __get_user(sw->a5, &gregs[13]); - err |= __get_user(sw->a6, &gregs[14]); - err |= __get_user(usp, &gregs[15]); - wrusp(usp); - err |= __get_user(regs->pc, &gregs[16]); - err |= __get_user(temp, &gregs[17]); - regs->sr = (regs->sr & 0xff00) | (temp & 0xff); - regs->orig_d0 = -1; /* disable syscall checks */ - regs->format = temp >> 12; - regs->vector = temp & 0xfff; - - if (do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT) - goto badframe; - - *pd0 = regs->d0; - return err; - -badframe: - return 1; -} - -asmlinkage int do_sigreturn(unsigned long __unused) -{ - struct switch_stack *sw = (struct switch_stack *) &__unused; - struct pt_regs *regs = (struct pt_regs *) (sw + 1); - unsigned long usp = rdusp(); - struct sigframe __user *frame = (struct sigframe __user *)(usp - 4); - sigset_t set; - int d0; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - if (__get_user(set.sig[0], &frame->sc.sc_mask) || - (_NSIG_WORDS > 1 && - __copy_from_user(&set.sig[1], &frame->extramask, - sizeof(frame->extramask)))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (restore_sigcontext(regs, &frame->sc, frame + 1, &d0)) - goto badframe; - return d0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -asmlinkage int do_rt_sigreturn(unsigned long __unused) -{ - struct switch_stack *sw = (struct switch_stack *) &__unused; - struct pt_regs *regs = (struct pt_regs *) (sw + 1); - unsigned long usp = rdusp(); - struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4); - sigset_t set; - int d0; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (rt_restore_ucontext(regs, sw, &frame->uc, &d0)) - goto badframe; - return d0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -#ifdef CONFIG_FPU -/* - * Set up a signal frame. - */ - -static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs) -{ - if (FPU_IS_EMU) { - /* save registers */ - memcpy(sc->sc_fpcntl, current->thread.fpcntl, 12); - memcpy(sc->sc_fpregs, current->thread.fp, 24); - return; - } - - __asm__ volatile (".chip 68k/68881\n\t" - "fsave %0\n\t" - ".chip 68k" - : : "m" (*sc->sc_fpstate) : "memory"); - - if (sc->sc_fpstate[0]) { - fpu_version = sc->sc_fpstate[0]; - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %%fp0-%%fp1,%0\n\t" - "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" - ".chip 68k" - : "=m" (*sc->sc_fpregs), - "=m" (*sc->sc_fpcntl) - : /* no inputs */ - : "memory"); - } -} - -static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs) -{ - unsigned char fpstate[FPCONTEXT_SIZE]; - int context_size = 0; - int err = 0; - - if (FPU_IS_EMU) { - /* save fpu control register */ - err |= copy_to_user(uc->uc_mcontext.fpregs.f_pcntl, - current->thread.fpcntl, 12); - /* save all other fpu register */ - err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs, - current->thread.fp, 96); - return err; - } - - __asm__ volatile (".chip 68k/68881\n\t" - "fsave %0\n\t" - ".chip 68k" - : : "m" (*fpstate) : "memory"); - - err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate); - if (fpstate[0]) { - fpregset_t fpregs; - context_size = fpstate[1]; - fpu_version = fpstate[0]; - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %%fp0-%%fp7,%0\n\t" - "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" - ".chip 68k" - : "=m" (*fpregs.f_fpregs), - "=m" (*fpregs.f_fpcntl) - : /* no inputs */ - : "memory"); - err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs, - sizeof(fpregs)); - } - if (context_size) - err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4, - context_size); - return err; -} - -#endif - -static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, - unsigned long mask) -{ - sc->sc_mask = mask; - sc->sc_usp = rdusp(); - sc->sc_d0 = regs->d0; - sc->sc_d1 = regs->d1; - sc->sc_a0 = regs->a0; - sc->sc_a1 = regs->a1; - sc->sc_a5 = ((struct switch_stack *)regs - 1)->a5; - sc->sc_sr = regs->sr; - sc->sc_pc = regs->pc; - sc->sc_formatvec = regs->format << 12 | regs->vector; -#ifdef CONFIG_FPU - save_fpu_state(sc, regs); -#endif -} - -static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs) -{ - struct switch_stack *sw = (struct switch_stack *)regs - 1; - greg_t __user *gregs = uc->uc_mcontext.gregs; - int err = 0; - - err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version); - err |= __put_user(regs->d0, &gregs[0]); - err |= __put_user(regs->d1, &gregs[1]); - err |= __put_user(regs->d2, &gregs[2]); - err |= __put_user(regs->d3, &gregs[3]); - err |= __put_user(regs->d4, &gregs[4]); - err |= __put_user(regs->d5, &gregs[5]); - err |= __put_user(sw->d6, &gregs[6]); - err |= __put_user(sw->d7, &gregs[7]); - err |= __put_user(regs->a0, &gregs[8]); - err |= __put_user(regs->a1, &gregs[9]); - err |= __put_user(regs->a2, &gregs[10]); - err |= __put_user(sw->a3, &gregs[11]); - err |= __put_user(sw->a4, &gregs[12]); - err |= __put_user(sw->a5, &gregs[13]); - err |= __put_user(sw->a6, &gregs[14]); - err |= __put_user(rdusp(), &gregs[15]); - err |= __put_user(regs->pc, &gregs[16]); - err |= __put_user(regs->sr, &gregs[17]); -#ifdef CONFIG_FPU - err |= rt_save_fpu_state(uc, regs); -#endif - return err; -} - -static inline void __user * -get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) -{ - unsigned long usp; - - /* Default to using normal stack. */ - usp = rdusp(); - - /* This is the X/Open sanctioned signal stack switching. */ - if (ka->sa.sa_flags & SA_ONSTACK) { - if (!sas_ss_flags(usp)) - usp = current->sas_ss_sp + current->sas_ss_size; - } - return (void __user *)((usp - frame_size) & -8UL); -} - -static int setup_frame (int sig, struct k_sigaction *ka, - sigset_t *set, struct pt_regs *regs) -{ - struct sigframe __user *frame; - struct sigcontext context; - int err = 0; - - frame = get_sigframe(ka, regs, sizeof(*frame)); - - err |= __put_user((current_thread_info()->exec_domain - && current_thread_info()->exec_domain->signal_invmap - && sig < 32 - ? current_thread_info()->exec_domain->signal_invmap[sig] - : sig), - &frame->sig); - - err |= __put_user(regs->vector, &frame->code); - err |= __put_user(&frame->sc, &frame->psc); - - if (_NSIG_WORDS > 1) - err |= copy_to_user(frame->extramask, &set->sig[1], - sizeof(frame->extramask)); - - setup_sigcontext(&context, regs, set->sig[0]); - err |= copy_to_user (&frame->sc, &context, sizeof(context)); - - /* Set up to return from userspace. */ - err |= __put_user((void *) ret_from_user_signal, &frame->pretcode); - - if (err) - goto give_sigsegv; - - /* Set up registers for signal handler */ - wrusp ((unsigned long) frame); - regs->pc = (unsigned long) ka->sa.sa_handler; - ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data; - regs->format = 0x4; /*set format byte to make stack appear modulo 4 - which it will be when doing the rte */ - -adjust_stack: - /* Prepare to skip over the extra stuff in the exception frame. */ - if (regs->stkadj) { - struct pt_regs *tregs = - (struct pt_regs *)((ulong)regs + regs->stkadj); -#if defined(DEBUG) - printk(KERN_DEBUG "Performing stackadjust=%04x\n", regs->stkadj); -#endif - /* This must be copied with decreasing addresses to - handle overlaps. */ - tregs->vector = 0; - tregs->format = 0; - tregs->pc = regs->pc; - tregs->sr = regs->sr; - } - return err; - -give_sigsegv: - force_sigsegv(sig, current); - goto adjust_stack; -} - -static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs) -{ - struct rt_sigframe __user *frame; - int err = 0; - - frame = get_sigframe(ka, regs, sizeof(*frame)); - - err |= __put_user((current_thread_info()->exec_domain - && current_thread_info()->exec_domain->signal_invmap - && sig < 32 - ? current_thread_info()->exec_domain->signal_invmap[sig] - : sig), - &frame->sig); - err |= __put_user(&frame->info, &frame->pinfo); - err |= __put_user(&frame->uc, &frame->puc); - err |= copy_siginfo_to_user(&frame->info, info); - - /* Create the ucontext. */ - err |= __put_user(0, &frame->uc.uc_flags); - err |= __put_user(NULL, &frame->uc.uc_link); - err |= __put_user((void __user *)current->sas_ss_sp, - &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(rdusp()), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); - err |= rt_setup_ucontext(&frame->uc, regs); - err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set)); - - /* Set up to return from userspace. */ - err |= __put_user((void *) ret_from_user_rt_signal, &frame->pretcode); - - if (err) - goto give_sigsegv; - - /* Set up registers for signal handler */ - wrusp ((unsigned long) frame); - regs->pc = (unsigned long) ka->sa.sa_handler; - ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data; - regs->format = 0x4; /*set format byte to make stack appear modulo 4 - which it will be when doing the rte */ - -adjust_stack: - /* Prepare to skip over the extra stuff in the exception frame. */ - if (regs->stkadj) { - struct pt_regs *tregs = - (struct pt_regs *)((ulong)regs + regs->stkadj); -#if defined(DEBUG) - printk(KERN_DEBUG "Performing stackadjust=%04x\n", regs->stkadj); -#endif - /* This must be copied with decreasing addresses to - handle overlaps. */ - tregs->vector = 0; - tregs->format = 0; - tregs->pc = regs->pc; - tregs->sr = regs->sr; - } - return err; - -give_sigsegv: - force_sigsegv(sig, current); - goto adjust_stack; -} - -static inline void -handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) -{ - switch (regs->d0) { - case -ERESTARTNOHAND: - if (!has_handler) - goto do_restart; - regs->d0 = -EINTR; - break; - - case -ERESTART_RESTARTBLOCK: - if (!has_handler) { - regs->d0 = __NR_restart_syscall; - regs->pc -= 2; - break; - } - regs->d0 = -EINTR; - break; - - case -ERESTARTSYS: - if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { - regs->d0 = -EINTR; - break; - } - /* fallthrough */ - case -ERESTARTNOINTR: - do_restart: - regs->d0 = regs->orig_d0; - regs->pc -= 2; - break; - } -} - -/* - * OK, we're invoking a handler - */ -static void -handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *oldset, struct pt_regs *regs) -{ - int err; - /* are we from a system call? */ - if (regs->orig_d0 >= 0) - /* If so, check system call restarting.. */ - handle_restart(regs, ka, 1); - - /* set up the stack frame */ - if (ka->sa.sa_flags & SA_SIGINFO) - err = setup_rt_frame(sig, ka, info, oldset, regs); - else - err = setup_frame(sig, ka, oldset, regs); - - if (err) - return; - - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked,sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - clear_thread_flag(TIF_RESTORE_SIGMASK); -} - -/* - * Note that 'init' is a special process: it doesn't get signals it doesn't - * want to handle. Thus you cannot kill init even with a SIGKILL even by - * mistake. - */ -asmlinkage void do_signal(struct pt_regs *regs) -{ - struct k_sigaction ka; - siginfo_t info; - int signr; - sigset_t *oldset; - - /* - * We want the common case to go fast, which - * is why we may in certain cases get here from - * kernel mode. Just return without doing anything - * if so. - */ - if (!user_mode(regs)) - return; - - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - oldset = ¤t->saved_sigmask; - else - oldset = ¤t->blocked; - - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - if (signr > 0) { - /* Whee! Actually deliver the signal. */ - handle_signal(signr, &ka, &info, oldset, regs); - return; - } - - /* Did we come from a system call? */ - if (regs->orig_d0 >= 0) { - /* Restart the system call - no handlers present */ - handle_restart(regs, NULL, 0); - } - - /* If there's no signal to deliver, we just restore the saved mask. */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) { - clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } -} diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c deleted file mode 100644 index 68488ae47f0a..000000000000 --- a/arch/m68knommu/kernel/sys_m68k.c +++ /dev/null @@ -1,94 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/sys_m68k.c - * - * This file contains various random system calls that - * have a non-standard calling sequence on the Linux/m68k - * platform. - */ - -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/sem.h> -#include <linux/msg.h> -#include <linux/shm.h> -#include <linux/stat.h> -#include <linux/syscalls.h> -#include <linux/mman.h> -#include <linux/file.h> -#include <linux/ipc.h> -#include <linux/fs.h> - -#include <asm/setup.h> -#include <asm/uaccess.h> -#include <asm/cachectl.h> -#include <asm/traps.h> -#include <asm/cacheflush.h> -#include <asm/unistd.h> - -/* sys_cacheflush -- flush (part of) the processor cache. */ -asmlinkage int -sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) -{ - flush_cache_all(); - return(0); -} - -asmlinkage int sys_getpagesize(void) -{ - return PAGE_SIZE; -} - -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -int kernel_execve(const char *filename, - const char *const argv[], - const char *const envp[]) -{ - register long __res asm ("%d0") = __NR_execve; - register long __a asm ("%d1") = (long)(filename); - register long __b asm ("%d2") = (long)(argv); - register long __c asm ("%d3") = (long)(envp); - asm volatile ("trap #0" : "+d" (__res) - : "d" (__a), "d" (__b), "d" (__c)); - return __res; -} - -asmlinkage unsigned long sys_get_thread_area(void) -{ - return current_thread_info()->tp_value; -} - -asmlinkage int sys_set_thread_area(unsigned long tp) -{ - current_thread_info()->tp_value = tp; - return 0; -} - -/* This syscall gets its arguments in A0 (mem), D2 (oldval) and - D1 (newval). */ -asmlinkage int -sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, - unsigned long __user * mem) -{ - struct mm_struct *mm = current->mm; - unsigned long mem_value; - - down_read(&mm->mmap_sem); - - mem_value = *mem; - if (mem_value == oldval) - *mem = newval; - - up_read(&mm->mmap_sem); - return mem_value; -} - -asmlinkage int sys_atomic_barrier(void) -{ - /* no code needed for uniprocs */ - return 0; -} diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S deleted file mode 100644 index 79b1ed198c07..000000000000 --- a/arch/m68knommu/kernel/syscalltable.S +++ /dev/null @@ -1,365 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/syscalltable.S - * - * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com) - * - * Based on older entry.S files, the following copyrights apply: - * - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Kenneth Albanowski <kjahds@kjahds.com>, - * Copyright (C) 2000 Lineo Inc. (www.lineo.com) - * Copyright (C) 1991, 1992 Linus Torvalds - */ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/unistd.h> - -.text -ALIGN -ENTRY(sys_call_table) - .long sys_restart_syscall /* 0 - old "setup()" system call */ - .long sys_exit - .long sys_fork - .long sys_read - .long sys_write - .long sys_open /* 5 */ - .long sys_close - .long sys_waitpid - .long sys_creat - .long sys_link - .long sys_unlink /* 10 */ - .long sys_execve - .long sys_chdir - .long sys_time - .long sys_mknod - .long sys_chmod /* 15 */ - .long sys_chown16 - .long sys_ni_syscall /* old break syscall holder */ - .long sys_stat - .long sys_lseek - .long sys_getpid /* 20 */ - .long sys_mount - .long sys_oldumount - .long sys_setuid16 - .long sys_getuid16 - .long sys_stime /* 25 */ - .long sys_ptrace - .long sys_alarm - .long sys_fstat - .long sys_pause - .long sys_utime /* 30 */ - .long sys_ni_syscall /* old stty syscall holder */ - .long sys_ni_syscall /* old gtty syscall holder */ - .long sys_access - .long sys_nice - .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ - .long sys_sync - .long sys_kill - .long sys_rename - .long sys_mkdir - .long sys_rmdir /* 40 */ - .long sys_dup - .long sys_pipe - .long sys_times - .long sys_ni_syscall /* old prof syscall holder */ - .long sys_brk /* 45 */ - .long sys_setgid16 - .long sys_getgid16 - .long sys_signal - .long sys_geteuid16 - .long sys_getegid16 /* 50 */ - .long sys_acct - .long sys_umount /* recycled never used phys() */ - .long sys_ni_syscall /* old lock syscall holder */ - .long sys_ioctl - .long sys_fcntl /* 55 */ - .long sys_ni_syscall /* old mpx syscall holder */ - .long sys_setpgid - .long sys_ni_syscall /* old ulimit syscall holder */ - .long sys_ni_syscall - .long sys_umask /* 60 */ - .long sys_chroot - .long sys_ustat - .long sys_dup2 - .long sys_getppid - .long sys_getpgrp /* 65 */ - .long sys_setsid - .long sys_sigaction - .long sys_sgetmask - .long sys_ssetmask - .long sys_setreuid16 /* 70 */ - .long sys_setregid16 - .long sys_sigsuspend - .long sys_sigpending - .long sys_sethostname - .long sys_setrlimit /* 75 */ - .long sys_old_getrlimit - .long sys_getrusage - .long sys_gettimeofday - .long sys_settimeofday - .long sys_getgroups16 /* 80 */ - .long sys_setgroups16 - .long sys_old_select - .long sys_symlink - .long sys_lstat - .long sys_readlink /* 85 */ - .long sys_uselib - .long sys_ni_syscall /* sys_swapon */ - .long sys_reboot - .long sys_old_readdir - .long sys_old_mmap /* 90 */ - .long sys_munmap - .long sys_truncate - .long sys_ftruncate - .long sys_fchmod - .long sys_fchown16 /* 95 */ - .long sys_getpriority - .long sys_setpriority - .long sys_ni_syscall /* old profil syscall holder */ - .long sys_statfs - .long sys_fstatfs /* 100 */ - .long sys_ni_syscall /* ioperm for i386 */ - .long sys_socketcall - .long sys_syslog - .long sys_setitimer - .long sys_getitimer /* 105 */ - .long sys_newstat - .long sys_newlstat - .long sys_newfstat - .long sys_ni_syscall - .long sys_ni_syscall /* iopl for i386 */ /* 110 */ - .long sys_vhangup - .long sys_ni_syscall /* obsolete idle() syscall */ - .long sys_ni_syscall /* vm86old for i386 */ - .long sys_wait4 - .long sys_ni_syscall /* 115 */ /* sys_swapoff */ - .long sys_sysinfo - .long sys_ipc - .long sys_fsync - .long sys_sigreturn - .long sys_clone /* 120 */ - .long sys_setdomainname - .long sys_newuname - .long sys_cacheflush /* modify_ldt for i386 */ - .long sys_adjtimex - .long sys_ni_syscall /* 125 */ /* sys_mprotect */ - .long sys_sigprocmask - .long sys_ni_syscall /* old "creat_module" */ - .long sys_init_module - .long sys_delete_module - .long sys_ni_syscall /* 130: old "get_kernel_syms" */ - .long sys_quotactl - .long sys_getpgid - .long sys_fchdir - .long sys_bdflush - .long sys_sysfs /* 135 */ - .long sys_personality - .long sys_ni_syscall /* for afs_syscall */ - .long sys_setfsuid16 - .long sys_setfsgid16 - .long sys_llseek /* 140 */ - .long sys_getdents - .long sys_select - .long sys_flock - .long sys_ni_syscall /* sys_msync */ - .long sys_readv /* 145 */ - .long sys_writev - .long sys_getsid - .long sys_fdatasync - .long sys_sysctl - .long sys_ni_syscall /* 150 */ /* sys_mlock */ - .long sys_ni_syscall /* sys_munlock */ - .long sys_ni_syscall /* sys_mlockall */ - .long sys_ni_syscall /* sys_munlockall */ - .long sys_sched_setparam - .long sys_sched_getparam /* 155 */ - .long sys_sched_setscheduler - .long sys_sched_getscheduler - .long sys_sched_yield - .long sys_sched_get_priority_max - .long sys_sched_get_priority_min /* 160 */ - .long sys_sched_rr_get_interval - .long sys_nanosleep - .long sys_ni_syscall /* sys_mremap */ - .long sys_setresuid16 - .long sys_getresuid16 /* 165 */ - .long sys_getpagesize /* sys_getpagesize */ - .long sys_ni_syscall /* old "query_module" */ - .long sys_poll - .long sys_ni_syscall /* sys_nfsservctl */ - .long sys_setresgid16 /* 170 */ - .long sys_getresgid16 - .long sys_prctl - .long sys_rt_sigreturn - .long sys_rt_sigaction - .long sys_rt_sigprocmask /* 175 */ - .long sys_rt_sigpending - .long sys_rt_sigtimedwait - .long sys_rt_sigqueueinfo - .long sys_rt_sigsuspend - .long sys_pread64 /* 180 */ - .long sys_pwrite64 - .long sys_lchown16 - .long sys_getcwd - .long sys_capget - .long sys_capset /* 185 */ - .long sys_sigaltstack - .long sys_sendfile - .long sys_ni_syscall /* streams1 */ - .long sys_ni_syscall /* streams2 */ - .long sys_vfork /* 190 */ - .long sys_getrlimit - .long sys_mmap_pgoff - .long sys_truncate64 - .long sys_ftruncate64 - .long sys_stat64 /* 195 */ - .long sys_lstat64 - .long sys_fstat64 - .long sys_chown - .long sys_getuid - .long sys_getgid /* 200 */ - .long sys_geteuid - .long sys_getegid - .long sys_setreuid - .long sys_setregid - .long sys_getgroups /* 205 */ - .long sys_setgroups - .long sys_fchown - .long sys_setresuid - .long sys_getresuid - .long sys_setresgid /* 210 */ - .long sys_getresgid - .long sys_lchown - .long sys_setuid - .long sys_setgid - .long sys_setfsuid /* 215 */ - .long sys_setfsgid - .long sys_pivot_root - .long sys_ni_syscall - .long sys_ni_syscall - .long sys_getdents64 /* 220 */ - .long sys_gettid - .long sys_tkill - .long sys_setxattr - .long sys_lsetxattr - .long sys_fsetxattr /* 225 */ - .long sys_getxattr - .long sys_lgetxattr - .long sys_fgetxattr - .long sys_listxattr - .long sys_llistxattr /* 230 */ - .long sys_flistxattr - .long sys_removexattr - .long sys_lremovexattr - .long sys_fremovexattr - .long sys_futex /* 235 */ - .long sys_sendfile64 - .long sys_ni_syscall /* sys_mincore */ - .long sys_ni_syscall /* sys_madvise */ - .long sys_fcntl64 - .long sys_readahead /* 240 */ - .long sys_io_setup - .long sys_io_destroy - .long sys_io_getevents - .long sys_io_submit - .long sys_io_cancel /* 245 */ - .long sys_fadvise64 - .long sys_exit_group - .long sys_lookup_dcookie - .long sys_epoll_create - .long sys_epoll_ctl /* 250 */ - .long sys_epoll_wait - .long sys_ni_syscall /* sys_remap_file_pages */ - .long sys_set_tid_address - .long sys_timer_create - .long sys_timer_settime /* 255 */ - .long sys_timer_gettime - .long sys_timer_getoverrun - .long sys_timer_delete - .long sys_clock_settime - .long sys_clock_gettime /* 260 */ - .long sys_clock_getres - .long sys_clock_nanosleep - .long sys_statfs64 - .long sys_fstatfs64 - .long sys_tgkill /* 265 */ - .long sys_utimes - .long sys_fadvise64_64 - .long sys_mbind - .long sys_get_mempolicy - .long sys_set_mempolicy /* 270 */ - .long sys_mq_open - .long sys_mq_unlink - .long sys_mq_timedsend - .long sys_mq_timedreceive - .long sys_mq_notify /* 275 */ - .long sys_mq_getsetattr - .long sys_waitid - .long sys_ni_syscall /* for sys_vserver */ - .long sys_add_key - .long sys_request_key /* 280 */ - .long sys_keyctl - .long sys_ioprio_set - .long sys_ioprio_get - .long sys_inotify_init - .long sys_inotify_add_watch /* 285 */ - .long sys_inotify_rm_watch - .long sys_migrate_pages - .long sys_openat - .long sys_mkdirat - .long sys_mknodat /* 290 */ - .long sys_fchownat - .long sys_futimesat - .long sys_fstatat64 - .long sys_unlinkat - .long sys_renameat /* 295 */ - .long sys_linkat - .long sys_symlinkat - .long sys_readlinkat - .long sys_fchmodat - .long sys_faccessat /* 300 */ - .long sys_ni_syscall /* Reserved for pselect6 */ - .long sys_ni_syscall /* Reserved for ppoll */ - .long sys_unshare - .long sys_set_robust_list - .long sys_get_robust_list /* 305 */ - .long sys_splice - .long sys_sync_file_range - .long sys_tee - .long sys_vmsplice - .long sys_move_pages /* 310 */ - .long sys_sched_setaffinity - .long sys_sched_getaffinity - .long sys_kexec_load - .long sys_getcpu - .long sys_epoll_pwait /* 315 */ - .long sys_utimensat - .long sys_signalfd - .long sys_timerfd_create - .long sys_eventfd - .long sys_fallocate /* 320 */ - .long sys_timerfd_settime - .long sys_timerfd_gettime - .long sys_signalfd4 - .long sys_eventfd2 - .long sys_epoll_create1 /* 325 */ - .long sys_dup3 - .long sys_pipe2 - .long sys_inotify_init1 - .long sys_preadv - .long sys_pwritev /* 330 */ - .long sys_rt_tgsigqueueinfo - .long sys_perf_event_open - .long sys_get_thread_area - .long sys_set_thread_area - .long sys_atomic_cmpxchg_32 /* 335 */ - .long sys_atomic_barrier - .long sys_fanotify_init - .long sys_fanotify_mark - .long sys_prlimit64 - - .rept NR_syscalls-(.-sys_call_table)/4 - .long sys_ni_syscall - .endr - diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c deleted file mode 100644 index 6623909f70e6..000000000000 --- a/arch/m68knommu/kernel/time.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/time.c - * - * Copyright (C) 1991, 1992, 1995 Linus Torvalds - * - * This file contains the m68k-specific time handling details. - * Most of the stuff is located in the machine specific files. - * - * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 - * "A Kernel Model for Precision Timekeeping" by Dave Mills - */ - -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/profile.h> -#include <linux/time.h> -#include <linux/timex.h> - -#include <asm/machdep.h> -#include <asm/irq_regs.h> - -#define TICK_SIZE (tick_nsec / 1000) - -static inline int set_rtc_mmss(unsigned long nowtime) -{ - if (mach_set_clock_mmss) - return mach_set_clock_mmss (nowtime); - return -1; -} - -#ifndef CONFIG_GENERIC_CLOCKEVENTS -/* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "xtime_update()" routine every clocktick - */ -irqreturn_t arch_timer_interrupt(int irq, void *dummy) -{ - - if (current->pid) - profile_tick(CPU_PROFILING); - - xtime_update(1); - - update_process_times(user_mode(get_irq_regs())); - - return(IRQ_HANDLED); -} -#endif - -static unsigned long read_rtc_mmss(void) -{ - unsigned int year, mon, day, hour, min, sec; - - if (mach_gettod) { - mach_gettod(&year, &mon, &day, &hour, &min, &sec); - if ((year += 1900) < 1970) - year += 100; - } else { - year = 1970; - mon = day = 1; - hour = min = sec = 0; - } - - - return mktime(year, mon, day, hour, min, sec); -} - -void read_persistent_clock(struct timespec *ts) -{ - ts->tv_sec = read_rtc_mmss(); - ts->tv_nsec = 0; -} - -int update_persistent_clock(struct timespec now) -{ - return set_rtc_mmss(now.tv_sec); -} - -void time_init(void) -{ - hw_timer_init(); -} diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68knommu/kernel/traps.c deleted file mode 100644 index a768008dfd06..000000000000 --- a/arch/m68knommu/kernel/traps.c +++ /dev/null @@ -1,365 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/traps.c - * - * Copyright (C) 1993, 1994 by Hamish Macdonald - * - * 68040 fixes by Michael Rausch - * 68040 fixes by Martin Apel - * 68060 fixes by Roman Hodek - * 68060 fixes by Jesper Skov - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/* - * Sets up all exception vectors - */ -#include <linux/sched.h> -#include <linux/signal.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/user.h> -#include <linux/string.h> -#include <linux/linkage.h> -#include <linux/init.h> -#include <linux/ptrace.h> -#include <linux/kallsyms.h> - -#include <asm/setup.h> -#include <asm/fpu.h> -#include <asm/system.h> -#include <asm/uaccess.h> -#include <asm/traps.h> -#include <asm/pgtable.h> -#include <asm/machdep.h> -#include <asm/siginfo.h> - -static char const * const vec_names[] = { - "RESET SP", "RESET PC", "BUS ERROR", "ADDRESS ERROR", - "ILLEGAL INSTRUCTION", "ZERO DIVIDE", "CHK", "TRAPcc", - "PRIVILEGE VIOLATION", "TRACE", "LINE 1010", "LINE 1111", - "UNASSIGNED RESERVED 12", "COPROCESSOR PROTOCOL VIOLATION", - "FORMAT ERROR", "UNINITIALIZED INTERRUPT", - "UNASSIGNED RESERVED 16", "UNASSIGNED RESERVED 17", - "UNASSIGNED RESERVED 18", "UNASSIGNED RESERVED 19", - "UNASSIGNED RESERVED 20", "UNASSIGNED RESERVED 21", - "UNASSIGNED RESERVED 22", "UNASSIGNED RESERVED 23", - "SPURIOUS INTERRUPT", "LEVEL 1 INT", "LEVEL 2 INT", "LEVEL 3 INT", - "LEVEL 4 INT", "LEVEL 5 INT", "LEVEL 6 INT", "LEVEL 7 INT", - "SYSCALL", "TRAP #1", "TRAP #2", "TRAP #3", - "TRAP #4", "TRAP #5", "TRAP #6", "TRAP #7", - "TRAP #8", "TRAP #9", "TRAP #10", "TRAP #11", - "TRAP #12", "TRAP #13", "TRAP #14", "TRAP #15", - "FPCP BSUN", "FPCP INEXACT", "FPCP DIV BY 0", "FPCP UNDERFLOW", - "FPCP OPERAND ERROR", "FPCP OVERFLOW", "FPCP SNAN", - "FPCP UNSUPPORTED OPERATION", - "MMU CONFIGURATION ERROR" -}; - -void __init trap_init(void) -{ -} - -void die_if_kernel(char *str, struct pt_regs *fp, int nr) -{ - if (!(fp->sr & PS_S)) - return; - - console_verbose(); - printk(KERN_EMERG "%s: %08x\n",str,nr); - printk(KERN_EMERG "PC: [<%08lx>]\nSR: %04x SP: %p a2: %08lx\n", - fp->pc, fp->sr, fp, fp->a2); - printk(KERN_EMERG "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", - fp->d0, fp->d1, fp->d2, fp->d3); - printk(KERN_EMERG "d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", - fp->d4, fp->d5, fp->a0, fp->a1); - - printk(KERN_EMERG "Process %s (pid: %d, stackpage=%08lx)\n", - current->comm, current->pid, PAGE_SIZE+(unsigned long)current); - show_stack(NULL, (unsigned long *)(fp + 1)); - add_taint(TAINT_DIE); - do_exit(SIGSEGV); -} - -asmlinkage void buserr_c(struct frame *fp) -{ - /* Only set esp0 if coming from user mode */ - if (user_mode(&fp->ptregs)) - current->thread.esp0 = (unsigned long) fp; - -#if defined(DEBUG) - printk (KERN_DEBUG "*** Bus Error *** Format is %x\n", fp->ptregs.format); -#endif - - die_if_kernel("bad frame format",&fp->ptregs,0); -#if defined(DEBUG) - printk(KERN_DEBUG "Unknown SIGSEGV - 4\n"); -#endif - force_sig(SIGSEGV, current); -} - -static void print_this_address(unsigned long addr, int i) -{ -#ifdef CONFIG_KALLSYMS - printk(KERN_EMERG " [%08lx] ", addr); - print_symbol(KERN_CONT "%s\n", addr); -#else - if (i % 5) - printk(KERN_CONT " [%08lx] ", addr); - else - printk(KERN_EMERG " [%08lx] ", addr); - i++; -#endif -} - -int kstack_depth_to_print = 48; - -static void __show_stack(struct task_struct *task, unsigned long *stack) -{ - unsigned long *endstack, addr; -#ifdef CONFIG_FRAME_POINTER - unsigned long *last_stack; -#endif - int i; - - if (!stack) - stack = (unsigned long *)task->thread.ksp; - - addr = (unsigned long) stack; - endstack = (unsigned long *) PAGE_ALIGN(addr); - - printk(KERN_EMERG "Stack from %08lx:", (unsigned long)stack); - for (i = 0; i < kstack_depth_to_print; i++) { - if (stack + 1 + i > endstack) - break; - if (i % 8 == 0) - printk(KERN_EMERG " "); - printk(KERN_CONT " %08lx", *(stack + i)); - } - printk("\n"); - i = 0; - -#ifdef CONFIG_FRAME_POINTER - printk(KERN_EMERG "Call Trace:\n"); - - last_stack = stack - 1; - while (stack <= endstack && stack > last_stack) { - - addr = *(stack + 1); - print_this_address(addr, i); - i++; - - last_stack = stack; - stack = (unsigned long *)*stack; - } - printk("\n"); -#else - printk(KERN_EMERG "Call Trace with CONFIG_FRAME_POINTER disabled:\n"); - while (stack <= endstack) { - addr = *stack++; - /* - * If the address is either in the text segment of the kernel, - * or in a region which is occupied by a module then it *may* - * be the address of a calling routine; if so, print it so that - * someone tracing down the cause of the crash will be able to - * figure out the call path that was taken. - */ - if (__kernel_text_address(addr)) { - print_this_address(addr, i); - i++; - } - } - printk(KERN_CONT "\n"); -#endif -} - -void bad_super_trap(struct frame *fp) -{ - int vector = (fp->ptregs.vector >> 2) & 0xff; - - console_verbose(); - if (vector < ARRAY_SIZE(vec_names)) - printk (KERN_WARNING "*** %s *** FORMAT=%X\n", - vec_names[vector], - fp->ptregs.format); - else - printk (KERN_WARNING "*** Exception %d *** FORMAT=%X\n", - vector, - fp->ptregs.format); - printk (KERN_WARNING "Current process id is %d\n", current->pid); - die_if_kernel("BAD KERNEL TRAP", &fp->ptregs, 0); -} - -asmlinkage void trap_c(struct frame *fp) -{ - int sig; - int vector = (fp->ptregs.vector >> 2) & 0xff; - siginfo_t info; - - if (fp->ptregs.sr & PS_S) { - if (vector == VEC_TRACE) { - /* traced a trapping instruction */ - } else - bad_super_trap(fp); - return; - } - - /* send the appropriate signal to the user program */ - switch (vector) { - case VEC_ADDRERR: - info.si_code = BUS_ADRALN; - sig = SIGBUS; - break; - case VEC_ILLEGAL: - case VEC_LINE10: - case VEC_LINE11: - info.si_code = ILL_ILLOPC; - sig = SIGILL; - break; - case VEC_PRIV: - info.si_code = ILL_PRVOPC; - sig = SIGILL; - break; - case VEC_COPROC: - info.si_code = ILL_COPROC; - sig = SIGILL; - break; - case VEC_TRAP1: /* gdbserver breakpoint */ - fp->ptregs.pc -= 2; - info.si_code = TRAP_TRACE; - sig = SIGTRAP; - break; - case VEC_TRAP2: - case VEC_TRAP3: - case VEC_TRAP4: - case VEC_TRAP5: - case VEC_TRAP6: - case VEC_TRAP7: - case VEC_TRAP8: - case VEC_TRAP9: - case VEC_TRAP10: - case VEC_TRAP11: - case VEC_TRAP12: - case VEC_TRAP13: - case VEC_TRAP14: - info.si_code = ILL_ILLTRP; - sig = SIGILL; - break; - case VEC_FPBRUC: - case VEC_FPOE: - case VEC_FPNAN: - info.si_code = FPE_FLTINV; - sig = SIGFPE; - break; - case VEC_FPIR: - info.si_code = FPE_FLTRES; - sig = SIGFPE; - break; - case VEC_FPDIVZ: - info.si_code = FPE_FLTDIV; - sig = SIGFPE; - break; - case VEC_FPUNDER: - info.si_code = FPE_FLTUND; - sig = SIGFPE; - break; - case VEC_FPOVER: - info.si_code = FPE_FLTOVF; - sig = SIGFPE; - break; - case VEC_ZERODIV: - info.si_code = FPE_INTDIV; - sig = SIGFPE; - break; - case VEC_CHK: - case VEC_TRAP: - info.si_code = FPE_INTOVF; - sig = SIGFPE; - break; - case VEC_TRACE: /* ptrace single step */ - info.si_code = TRAP_TRACE; - sig = SIGTRAP; - break; - case VEC_TRAP15: /* breakpoint */ - info.si_code = TRAP_BRKPT; - sig = SIGTRAP; - break; - default: - info.si_code = ILL_ILLOPC; - sig = SIGILL; - break; - } - info.si_signo = sig; - info.si_errno = 0; - switch (fp->ptregs.format) { - default: - info.si_addr = (void *) fp->ptregs.pc; - break; - case 2: - info.si_addr = (void *) fp->un.fmt2.iaddr; - break; - case 7: - info.si_addr = (void *) fp->un.fmt7.effaddr; - break; - case 9: - info.si_addr = (void *) fp->un.fmt9.iaddr; - break; - case 10: - info.si_addr = (void *) fp->un.fmta.daddr; - break; - case 11: - info.si_addr = (void *) fp->un.fmtb.daddr; - break; - } - force_sig_info (sig, &info, current); -} - -asmlinkage void set_esp0(unsigned long ssp) -{ - current->thread.esp0 = ssp; -} - -/* - * The architecture-independent backtrace generator - */ -void dump_stack(void) -{ - /* - * We need frame pointers for this little trick, which works as follows: - * - * +------------+ 0x00 - * | Next SP | -> 0x0c - * +------------+ 0x04 - * | Caller | - * +------------+ 0x08 - * | Local vars | -> our stack var - * +------------+ 0x0c - * | Next SP | -> 0x18, that is what we pass to show_stack() - * +------------+ 0x10 - * | Caller | - * +------------+ 0x14 - * | Local vars | - * +------------+ 0x18 - * | ... | - * +------------+ - */ - - unsigned long *stack; - - stack = (unsigned long *)&stack; - stack++; - __show_stack(current, stack); -} -EXPORT_SYMBOL(dump_stack); - -void show_stack(struct task_struct *task, unsigned long *stack) -{ - if (!stack && !task) - dump_stack(); - else - __show_stack(task, stack); -} diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S deleted file mode 100644 index 47e15ebfd893..000000000000 --- a/arch/m68knommu/kernel/vmlinux.lds.S +++ /dev/null @@ -1,188 +0,0 @@ -/* - * vmlinux.lds.S -- master linker script for m68knommu arch - * - * (C) Copyright 2002-2006, Greg Ungerer <gerg@snapgear.com> - * - * This linker script is equiped to build either ROM loaded or RAM - * run kernels. - */ - -#include <asm-generic/vmlinux.lds.h> -#include <asm/page.h> -#include <asm/thread_info.h> - -#if defined(CONFIG_RAMKERNEL) -#define RAM_START CONFIG_KERNELBASE -#define RAM_LENGTH (CONFIG_RAMBASE + CONFIG_RAMSIZE - CONFIG_KERNELBASE) -#define TEXT ram -#define DATA ram -#define INIT ram -#define BSSS ram -#endif -#if defined(CONFIG_ROMKERNEL) || defined(CONFIG_HIMEMKERNEL) -#define RAM_START CONFIG_RAMBASE -#define RAM_LENGTH CONFIG_RAMSIZE -#define ROMVEC_START CONFIG_ROMVEC -#define ROMVEC_LENGTH CONFIG_ROMVECSIZE -#define ROM_START CONFIG_ROMSTART -#define ROM_LENGTH CONFIG_ROMSIZE -#define TEXT rom -#define DATA ram -#define INIT ram -#define BSSS ram -#endif - -#ifndef DATA_ADDR -#define DATA_ADDR -#endif - - -OUTPUT_ARCH(m68k) -ENTRY(_start) - -MEMORY { - ram : ORIGIN = RAM_START, LENGTH = RAM_LENGTH -#ifdef ROM_START - romvec : ORIGIN = ROMVEC_START, LENGTH = ROMVEC_LENGTH - rom : ORIGIN = ROM_START, LENGTH = ROM_LENGTH -#endif -} - -jiffies = jiffies_64 + 4; - -SECTIONS { - -#ifdef ROMVEC_START - . = ROMVEC_START ; - .romvec : { - __rom_start = . ; - _romvec = .; - *(.data..initvect) - } > romvec -#endif - - .text : { - _text = .; - _stext = . ; - HEAD_TEXT - TEXT_TEXT - SCHED_TEXT - LOCK_TEXT - *(.text..lock) - - . = ALIGN(16); /* Exception table */ - __start___ex_table = .; - *(__ex_table) - __stop___ex_table = .; - - *(.rodata) *(.rodata.*) - *(__vermagic) /* Kernel version magic */ - *(__markers_strings) - *(.rodata1) - *(.rodata.str1.1) - - /* Kernel symbol table: Normal symbols */ - . = ALIGN(4); - __start___ksymtab = .; - *(__ksymtab) - __stop___ksymtab = .; - - /* Kernel symbol table: GPL-only symbols */ - __start___ksymtab_gpl = .; - *(__ksymtab_gpl) - __stop___ksymtab_gpl = .; - - /* Kernel symbol table: Normal unused symbols */ - __start___ksymtab_unused = .; - *(__ksymtab_unused) - __stop___ksymtab_unused = .; - - /* Kernel symbol table: GPL-only unused symbols */ - __start___ksymtab_unused_gpl = .; - *(__ksymtab_unused_gpl) - __stop___ksymtab_unused_gpl = .; - - /* Kernel symbol table: GPL-future symbols */ - __start___ksymtab_gpl_future = .; - *(__ksymtab_gpl_future) - __stop___ksymtab_gpl_future = .; - - /* Kernel symbol table: Normal symbols */ - __start___kcrctab = .; - *(__kcrctab) - __stop___kcrctab = .; - - /* Kernel symbol table: GPL-only symbols */ - __start___kcrctab_gpl = .; - *(__kcrctab_gpl) - __stop___kcrctab_gpl = .; - - /* Kernel symbol table: Normal unused symbols */ - __start___kcrctab_unused = .; - *(__kcrctab_unused) - __stop___kcrctab_unused = .; - - /* Kernel symbol table: GPL-only unused symbols */ - __start___kcrctab_unused_gpl = .; - *(__kcrctab_unused_gpl) - __stop___kcrctab_unused_gpl = .; - - /* Kernel symbol table: GPL-future symbols */ - __start___kcrctab_gpl_future = .; - *(__kcrctab_gpl_future) - __stop___kcrctab_gpl_future = .; - - /* Kernel symbol table: strings */ - *(__ksymtab_strings) - - /* Built-in module parameters */ - . = ALIGN(4) ; - __start___param = .; - *(__param) - __stop___param = .; - - /* Built-in module versions */ - . = ALIGN(4) ; - __start___modver = .; - *(__modver) - __stop___modver = .; - - . = ALIGN(4) ; - _etext = . ; - } > TEXT - - .data DATA_ADDR : { - . = ALIGN(4); - _sdata = . ; - DATA_DATA - CACHELINE_ALIGNED_DATA(32) - PAGE_ALIGNED_DATA(PAGE_SIZE) - *(.data..shared_aligned) - INIT_TASK_DATA(THREAD_SIZE) - _edata = . ; - } > DATA - - .init.text : { - . = ALIGN(PAGE_SIZE); - __init_begin = .; - } > INIT - INIT_TEXT_SECTION(PAGE_SIZE) > INIT - INIT_DATA_SECTION(16) > INIT - .init.data : { - . = ALIGN(PAGE_SIZE); - __init_end = .; - } > INIT - - .bss : { - . = ALIGN(4); - _sbss = . ; - *(.bss) - *(COMMON) - . = ALIGN(4) ; - _ebss = . ; - _end = . ; - } > BSSS - - DISCARDS -} - diff --git a/arch/m68knommu/lib/Makefile b/arch/m68knommu/lib/Makefile deleted file mode 100644 index 32d852e586d7..000000000000 --- a/arch/m68knommu/lib/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for m68knommu specific library files.. -# - -lib-y := ashldi3.o ashrdi3.o lshrdi3.o \ - muldi3.o mulsi3.o divsi3.o udivsi3.o modsi3.o umodsi3.o \ - checksum.o memcpy.o memmove.o memset.o delay.o diff --git a/arch/m68knommu/lib/ashldi3.c b/arch/m68knommu/lib/ashldi3.c deleted file mode 100644 index 008403eb8ce2..000000000000 --- a/arch/m68knommu/lib/ashldi3.c +++ /dev/null @@ -1,62 +0,0 @@ -/* ashrdi3.c extracted from gcc-2.95.2/libgcc2.c which is: */ -/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); - -struct DIstruct {SItype high, low;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - -DItype -__ashldi3 (DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.low = 0; - w.s.high = (USItype)uu.s.low << -bm; - } - else - { - USItype carries = (USItype)uu.s.low >> bm; - w.s.low = (USItype)uu.s.low << b; - w.s.high = ((USItype)uu.s.high << b) | carries; - } - - return w.ll; -} diff --git a/arch/m68knommu/lib/ashrdi3.c b/arch/m68knommu/lib/ashrdi3.c deleted file mode 100644 index 78efb65e315a..000000000000 --- a/arch/m68knommu/lib/ashrdi3.c +++ /dev/null @@ -1,63 +0,0 @@ -/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); - -struct DIstruct {SItype high, low;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - -DItype -__ashrdi3 (DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - /* w.s.high = 1..1 or 0..0 */ - w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1); - w.s.low = uu.s.high >> -bm; - } - else - { - USItype carries = (USItype)uu.s.high << bm; - w.s.high = uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; - } - - return w.ll; -} diff --git a/arch/m68knommu/lib/checksum.c b/arch/m68knommu/lib/checksum.c deleted file mode 100644 index eccf25d3d73e..000000000000 --- a/arch/m68knommu/lib/checksum.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * IP/TCP/UDP checksumming routines - * - * Authors: Jorge Cwik, <jorge@laser.satlink.net> - * Arnt Gulbrandsen, <agulbra@nvg.unit.no> - * Tom May, <ftom@netcom.com> - * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de> - * Lots of code moved from tcp.c and ip.c; see those files - * for more names. - * - * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek: - * Fixed some nasty bugs, causing some horrible crashes. - * A: At some points, the sum (%0) was used as - * length-counter instead of the length counter - * (%1). Thanks to Roman Hodek for pointing this out. - * B: GCC seems to mess up if one uses too many - * data-registers to hold input values and one tries to - * specify d0 and d1 as scratch registers. Letting gcc choose these - * registers itself solves the problem. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access kills, so most - of the assembly has to go. */ - -#include <linux/module.h> -#include <net/checksum.h> - -static inline unsigned short from32to16(unsigned long x) -{ - /* add up 16-bit and 16-bit for 16+c bit */ - x = (x & 0xffff) + (x >> 16); - /* add up carry.. */ - x = (x & 0xffff) + (x >> 16); - return x; -} - -static unsigned long do_csum(const unsigned char * buff, int len) -{ - int odd, count; - unsigned long result = 0; - - if (len <= 0) - goto out; - odd = 1 & (unsigned long) buff; - if (odd) { - result = *buff; - len--; - buff++; - } - count = len >> 1; /* nr of 16-bit words.. */ - if (count) { - if (2 & (unsigned long) buff) { - result += *(unsigned short *) buff; - count--; - len -= 2; - buff += 2; - } - count >>= 1; /* nr of 32-bit words.. */ - if (count) { - unsigned long carry = 0; - do { - unsigned long w = *(unsigned long *) buff; - count--; - buff += 4; - result += carry; - result += w; - carry = (w > result); - } while (count); - result += carry; - result = (result & 0xffff) + (result >> 16); - } - if (len & 2) { - result += *(unsigned short *) buff; - buff += 2; - } - } - if (len & 1) - result += (*buff << 8); - result = from32to16(result); - if (odd) - result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); -out: - return result; -} - -#ifdef CONFIG_COLDFIRE -/* - * This is a version of ip_compute_csum() optimized for IP headers, - * which always checksum on 4 octet boundaries. - */ -__sum16 ip_fast_csum(const void *iph, unsigned int ihl) -{ - return (__force __sum16)~do_csum(iph,ihl*4); -} -#endif - -/* - * computes the checksum of a memory block at buff, length len, - * and adds in "sum" (32-bit) - * - * returns a 32-bit number suitable for feeding into itself - * or csum_tcpudp_magic - * - * this function must be called with even lengths, except - * for the last fragment, which may be odd - * - * it's best to have buff aligned on a 32-bit boundary - */ -__wsum csum_partial(const void *buff, int len, __wsum sum) -{ - unsigned int result = do_csum(buff, len); - - /* add in old sum, and carry.. */ - result += (__force u32)sum; - if ((__force u32)sum > result) - result += 1; - return (__force __wsum)result; -} - -EXPORT_SYMBOL(csum_partial); - -/* - * copy from fs while checksumming, otherwise like csum_partial - */ - -__wsum -csum_partial_copy_from_user(const void __user *src, void *dst, - int len, __wsum sum, int *csum_err) -{ - if (csum_err) *csum_err = 0; - memcpy(dst, (__force const void *)src, len); - return csum_partial(dst, len, sum); -} - -/* - * copy from ds while checksumming, otherwise like csum_partial - */ - -__wsum -csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) -{ - memcpy(dst, src, len); - return csum_partial(dst, len, sum); -} diff --git a/arch/m68knommu/lib/delay.c b/arch/m68knommu/lib/delay.c deleted file mode 100644 index 5bd5472d38a0..000000000000 --- a/arch/m68knommu/lib/delay.c +++ /dev/null @@ -1,21 +0,0 @@ -/* - * arch/m68knommu/lib/delay.c - * - * (C) Copyright 2004, Greg Ungerer <gerg@snapgear.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <asm/param.h> -#include <asm/delay.h> - -EXPORT_SYMBOL(udelay); - -void udelay(unsigned long usecs) -{ - _udelay(usecs); -} - diff --git a/arch/m68knommu/lib/divsi3.S b/arch/m68knommu/lib/divsi3.S deleted file mode 100644 index ec307b61991e..000000000000 --- a/arch/m68knommu/lib/divsi3.S +++ /dev/null @@ -1,125 +0,0 @@ -/* libgcc1 routines for 68000 w/o floating-point hardware. - Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) any -later version. - -In addition to the permissions in the GNU General Public License, the -Free Software Foundation gives you unlimited permission to link the -compiled version of this file with other programs, and to distribute -those programs without any restriction coming from the use of this -file. (The General Public License restrictions do apply in other -respects; for example, they cover modification of the file, and -distribution when not linked into another program.) - -This file is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with files - compiled with GCC to produce an executable, this does not cause - the resulting executable to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. */ - -/* Use this one for any 680x0; assumes no floating point hardware. - The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. - Some of this code comes from MINIX, via the folks at ericsson. - D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 -*/ - -/* These are predefined by new versions of GNU cpp. */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -#ifndef __IMMEDIATE_PREFIX__ -#define __IMMEDIATE_PREFIX__ # -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -/* Use the right prefix for immediate values. */ - -#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) - -#define d0 REG (d0) -#define d1 REG (d1) -#define d2 REG (d2) -#define d3 REG (d3) -#define d4 REG (d4) -#define d5 REG (d5) -#define d6 REG (d6) -#define d7 REG (d7) -#define a0 REG (a0) -#define a1 REG (a1) -#define a2 REG (a2) -#define a3 REG (a3) -#define a4 REG (a4) -#define a5 REG (a5) -#define a6 REG (a6) -#define fp REG (fp) -#define sp REG (sp) - - .text - .proc - .globl SYM (__divsi3) -SYM (__divsi3): - movel d2, sp@- - - moveq IMM (1), d2 /* sign of result stored in d2 (=1 or =-1) */ - movel sp@(12), d1 /* d1 = divisor */ - jpl L1 - negl d1 -#if !(defined(__mcf5200__) || defined(__mcoldfire__)) - negb d2 /* change sign because divisor <0 */ -#else - negl d2 /* change sign because divisor <0 */ -#endif -L1: movel sp@(8), d0 /* d0 = dividend */ - jpl L2 - negl d0 -#if !(defined(__mcf5200__) || defined(__mcoldfire__)) - negb d2 -#else - negl d2 -#endif - -L2: movel d1, sp@- - movel d0, sp@- - jbsr SYM (__udivsi3) /* divide abs(dividend) by abs(divisor) */ - addql IMM (8), sp - - tstb d2 - jpl L3 - negl d0 - -L3: movel sp@+, d2 - rts - diff --git a/arch/m68knommu/lib/lshrdi3.c b/arch/m68knommu/lib/lshrdi3.c deleted file mode 100644 index 93b1cb6fdee8..000000000000 --- a/arch/m68knommu/lib/lshrdi3.c +++ /dev/null @@ -1,62 +0,0 @@ -/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); - -struct DIstruct {SItype high, low;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - -DItype -__lshrdi3 (DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.high = 0; - w.s.low = (USItype)uu.s.high >> -bm; - } - else - { - USItype carries = (USItype)uu.s.high << bm; - w.s.high = (USItype)uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; - } - - return w.ll; -} diff --git a/arch/m68knommu/lib/memcpy.c b/arch/m68knommu/lib/memcpy.c deleted file mode 100644 index b50dbcad4746..000000000000 --- a/arch/m68knommu/lib/memcpy.c +++ /dev/null @@ -1,62 +0,0 @@ - -#include <linux/types.h> - -void * memcpy(void * to, const void * from, size_t n) -{ -#ifdef CONFIG_COLDFIRE - void *xto = to; - size_t temp; - - if (!n) - return xto; - if ((long) to & 1) - { - char *cto = to; - const char *cfrom = from; - *cto++ = *cfrom++; - to = cto; - from = cfrom; - n--; - } - if (n > 2 && (long) to & 2) - { - short *sto = to; - const short *sfrom = from; - *sto++ = *sfrom++; - to = sto; - from = sfrom; - n -= 2; - } - temp = n >> 2; - if (temp) - { - long *lto = to; - const long *lfrom = from; - for (; temp; temp--) - *lto++ = *lfrom++; - to = lto; - from = lfrom; - } - if (n & 2) - { - short *sto = to; - const short *sfrom = from; - *sto++ = *sfrom++; - to = sto; - from = sfrom; - } - if (n & 1) - { - char *cto = to; - const char *cfrom = from; - *cto = *cfrom; - } - return xto; -#else - const char *c_from = from; - char *c_to = to; - while (n-- > 0) - *c_to++ = *c_from++; - return((void *) to); -#endif -} diff --git a/arch/m68knommu/lib/memmove.c b/arch/m68knommu/lib/memmove.c deleted file mode 100644 index b3dcfe9dab7e..000000000000 --- a/arch/m68knommu/lib/memmove.c +++ /dev/null @@ -1,105 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#define __IN_STRING_C - -#include <linux/module.h> -#include <linux/string.h> - -void *memmove(void *dest, const void *src, size_t n) -{ - void *xdest = dest; - size_t temp; - - if (!n) - return xdest; - - if (dest < src) { - if ((long)dest & 1) { - char *cdest = dest; - const char *csrc = src; - *cdest++ = *csrc++; - dest = cdest; - src = csrc; - n--; - } - if (n > 2 && (long)dest & 2) { - short *sdest = dest; - const short *ssrc = src; - *sdest++ = *ssrc++; - dest = sdest; - src = ssrc; - n -= 2; - } - temp = n >> 2; - if (temp) { - long *ldest = dest; - const long *lsrc = src; - temp--; - do - *ldest++ = *lsrc++; - while (temp--); - dest = ldest; - src = lsrc; - } - if (n & 2) { - short *sdest = dest; - const short *ssrc = src; - *sdest++ = *ssrc++; - dest = sdest; - src = ssrc; - } - if (n & 1) { - char *cdest = dest; - const char *csrc = src; - *cdest = *csrc; - } - } else { - dest = (char *)dest + n; - src = (const char *)src + n; - if ((long)dest & 1) { - char *cdest = dest; - const char *csrc = src; - *--cdest = *--csrc; - dest = cdest; - src = csrc; - n--; - } - if (n > 2 && (long)dest & 2) { - short *sdest = dest; - const short *ssrc = src; - *--sdest = *--ssrc; - dest = sdest; - src = ssrc; - n -= 2; - } - temp = n >> 2; - if (temp) { - long *ldest = dest; - const long *lsrc = src; - temp--; - do - *--ldest = *--lsrc; - while (temp--); - dest = ldest; - src = lsrc; - } - if (n & 2) { - short *sdest = dest; - const short *ssrc = src; - *--sdest = *--ssrc; - dest = sdest; - src = ssrc; - } - if (n & 1) { - char *cdest = dest; - const char *csrc = src; - *--cdest = *--csrc; - } - } - return xdest; -} -EXPORT_SYMBOL(memmove); diff --git a/arch/m68knommu/lib/memset.c b/arch/m68knommu/lib/memset.c deleted file mode 100644 index 1389bf455633..000000000000 --- a/arch/m68knommu/lib/memset.c +++ /dev/null @@ -1,47 +0,0 @@ -#include <linux/types.h> - -void * memset(void * s, int c, size_t count) -{ - void *xs = s; - size_t temp; - - if (!count) - return xs; - c &= 0xff; - c |= c << 8; - c |= c << 16; - if ((long) s & 1) - { - char *cs = s; - *cs++ = c; - s = cs; - count--; - } - if (count > 2 && (long) s & 2) - { - short *ss = s; - *ss++ = c; - s = ss; - count -= 2; - } - temp = count >> 2; - if (temp) - { - long *ls = s; - for (; temp; temp--) - *ls++ = c; - s = ls; - } - if (count & 2) - { - short *ss = s; - *ss++ = c; - s = ss; - } - if (count & 1) - { - char *cs = s; - *cs = c; - } - return xs; -} diff --git a/arch/m68knommu/lib/modsi3.S b/arch/m68knommu/lib/modsi3.S deleted file mode 100644 index ef3849435768..000000000000 --- a/arch/m68knommu/lib/modsi3.S +++ /dev/null @@ -1,113 +0,0 @@ -/* libgcc1 routines for 68000 w/o floating-point hardware. - Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) any -later version. - -In addition to the permissions in the GNU General Public License, the -Free Software Foundation gives you unlimited permission to link the -compiled version of this file with other programs, and to distribute -those programs without any restriction coming from the use of this -file. (The General Public License restrictions do apply in other -respects; for example, they cover modification of the file, and -distribution when not linked into another program.) - -This file is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with files - compiled with GCC to produce an executable, this does not cause - the resulting executable to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. */ - -/* Use this one for any 680x0; assumes no floating point hardware. - The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. - Some of this code comes from MINIX, via the folks at ericsson. - D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 -*/ - -/* These are predefined by new versions of GNU cpp. */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -#ifndef __IMMEDIATE_PREFIX__ -#define __IMMEDIATE_PREFIX__ # -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -/* Use the right prefix for immediate values. */ - -#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) - -#define d0 REG (d0) -#define d1 REG (d1) -#define d2 REG (d2) -#define d3 REG (d3) -#define d4 REG (d4) -#define d5 REG (d5) -#define d6 REG (d6) -#define d7 REG (d7) -#define a0 REG (a0) -#define a1 REG (a1) -#define a2 REG (a2) -#define a3 REG (a3) -#define a4 REG (a4) -#define a5 REG (a5) -#define a6 REG (a6) -#define fp REG (fp) -#define sp REG (sp) - - .text - .proc - .globl SYM (__modsi3) -SYM (__modsi3): - movel sp@(8), d1 /* d1 = divisor */ - movel sp@(4), d0 /* d0 = dividend */ - movel d1, sp@- - movel d0, sp@- - jbsr SYM (__divsi3) - addql IMM (8), sp - movel sp@(8), d1 /* d1 = divisor */ -#if !(defined(__mcf5200__) || defined(__mcoldfire__)) - movel d1, sp@- - movel d0, sp@- - jbsr SYM (__mulsi3) /* d0 = (a/b)*b */ - addql IMM (8), sp -#else - mulsl d1,d0 -#endif - movel sp@(4), d1 /* d1 = dividend */ - subl d0, d1 /* d1 = a - (a/b)*b */ - movel d1, d0 - rts - diff --git a/arch/m68knommu/lib/muldi3.c b/arch/m68knommu/lib/muldi3.c deleted file mode 100644 index 34af72c30303..000000000000 --- a/arch/m68knommu/lib/muldi3.c +++ /dev/null @@ -1,86 +0,0 @@ -/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and - gcc-2.7.2.3/longlong.h which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 -#define SI_TYPE_SIZE 32 - -#define __BITS4 (SI_TYPE_SIZE / 4) -#define __ll_B (1L << (SI_TYPE_SIZE / 2)) -#define __ll_lowpart(t) ((USItype) (t) % __ll_B) -#define __ll_highpart(t) ((USItype) (t) / __ll_B) - -#define umul_ppmm(w1, w0, u, v) \ - do { \ - USItype __x0, __x1, __x2, __x3; \ - USItype __ul, __vl, __uh, __vh; \ - \ - __ul = __ll_lowpart (u); \ - __uh = __ll_highpart (u); \ - __vl = __ll_lowpart (v); \ - __vh = __ll_highpart (v); \ - \ - __x0 = (USItype) __ul * __vl; \ - __x1 = (USItype) __ul * __vh; \ - __x2 = (USItype) __uh * __vl; \ - __x3 = (USItype) __uh * __vh; \ - \ - __x1 += __ll_highpart (__x0);/* this can't give carry */ \ - __x1 += __x2; /* but this indeed can */ \ - if (__x1 < __x2) /* did we get it? */ \ - __x3 += __ll_B; /* yes, add it in the proper pos. */ \ - \ - (w1) = __x3 + __ll_highpart (__x1); \ - (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \ - } while (0) - -#define __umulsidi3(u, v) \ - ({DIunion __w; \ - umul_ppmm (__w.s.high, __w.s.low, u, v); \ - __w.ll; }) - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef int word_type __attribute__ ((mode (__word__))); - -struct DIstruct {SItype high, low;}; - -typedef union -{ - struct DIstruct s; - DItype ll; -} DIunion; - -DItype -__muldi3 (DItype u, DItype v) -{ - DIunion w; - DIunion uu, vv; - - uu.ll = u, - vv.ll = v; - - w.ll = __umulsidi3 (uu.s.low, vv.s.low); - w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high - + (USItype) uu.s.high * (USItype) vv.s.low); - - return w.ll; -} diff --git a/arch/m68knommu/lib/mulsi3.S b/arch/m68knommu/lib/mulsi3.S deleted file mode 100644 index ce29ea37b45f..000000000000 --- a/arch/m68knommu/lib/mulsi3.S +++ /dev/null @@ -1,110 +0,0 @@ -/* libgcc1 routines for 68000 w/o floating-point hardware. - Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) any -later version. - -In addition to the permissions in the GNU General Public License, the -Free Software Foundation gives you unlimited permission to link the -compiled version of this file with other programs, and to distribute -those programs without any restriction coming from the use of this -file. (The General Public License restrictions do apply in other -respects; for example, they cover modification of the file, and -distribution when not linked into another program.) - -This file is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with files - compiled with GCC to produce an executable, this does not cause - the resulting executable to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. */ - -/* Use this one for any 680x0; assumes no floating point hardware. - The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. - Some of this code comes from MINIX, via the folks at ericsson. - D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 -*/ - -/* These are predefined by new versions of GNU cpp. */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -#ifndef __IMMEDIATE_PREFIX__ -#define __IMMEDIATE_PREFIX__ # -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -/* Use the right prefix for immediate values. */ - -#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) - -#define d0 REG (d0) -#define d1 REG (d1) -#define d2 REG (d2) -#define d3 REG (d3) -#define d4 REG (d4) -#define d5 REG (d5) -#define d6 REG (d6) -#define d7 REG (d7) -#define a0 REG (a0) -#define a1 REG (a1) -#define a2 REG (a2) -#define a3 REG (a3) -#define a4 REG (a4) -#define a5 REG (a5) -#define a6 REG (a6) -#define fp REG (fp) -#define sp REG (sp) - - .text - .proc - .globl SYM (__mulsi3) -SYM (__mulsi3): - movew sp@(4), d0 /* x0 -> d0 */ - muluw sp@(10), d0 /* x0*y1 */ - movew sp@(6), d1 /* x1 -> d1 */ - muluw sp@(8), d1 /* x1*y0 */ -#if !(defined(__mcf5200__) || defined(__mcoldfire__)) - addw d1, d0 -#else - addl d1, d0 -#endif - swap d0 - clrw d0 - movew sp@(6), d1 /* x1 -> d1 */ - muluw sp@(10), d1 /* x1*y1 */ - addl d1, d0 - - rts - diff --git a/arch/m68knommu/lib/udivsi3.S b/arch/m68knommu/lib/udivsi3.S deleted file mode 100644 index c424c4a1f0a3..000000000000 --- a/arch/m68knommu/lib/udivsi3.S +++ /dev/null @@ -1,162 +0,0 @@ -/* libgcc1 routines for 68000 w/o floating-point hardware. - Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) any -later version. - -In addition to the permissions in the GNU General Public License, the -Free Software Foundation gives you unlimited permission to link the -compiled version of this file with other programs, and to distribute -those programs without any restriction coming from the use of this -file. (The General Public License restrictions do apply in other -respects; for example, they cover modification of the file, and -distribution when not linked into another program.) - -This file is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with files - compiled with GCC to produce an executable, this does not cause - the resulting executable to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. */ - -/* Use this one for any 680x0; assumes no floating point hardware. - The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. - Some of this code comes from MINIX, via the folks at ericsson. - D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 -*/ - -/* These are predefined by new versions of GNU cpp. */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -#ifndef __IMMEDIATE_PREFIX__ -#define __IMMEDIATE_PREFIX__ # -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -/* Use the right prefix for immediate values. */ - -#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) - -#define d0 REG (d0) -#define d1 REG (d1) -#define d2 REG (d2) -#define d3 REG (d3) -#define d4 REG (d4) -#define d5 REG (d5) -#define d6 REG (d6) -#define d7 REG (d7) -#define a0 REG (a0) -#define a1 REG (a1) -#define a2 REG (a2) -#define a3 REG (a3) -#define a4 REG (a4) -#define a5 REG (a5) -#define a6 REG (a6) -#define fp REG (fp) -#define sp REG (sp) - - .text - .proc - .globl SYM (__udivsi3) -SYM (__udivsi3): -#if !(defined(__mcf5200__) || defined(__mcoldfire__)) - movel d2, sp@- - movel sp@(12), d1 /* d1 = divisor */ - movel sp@(8), d0 /* d0 = dividend */ - - cmpl IMM (0x10000), d1 /* divisor >= 2 ^ 16 ? */ - jcc L3 /* then try next algorithm */ - movel d0, d2 - clrw d2 - swap d2 - divu d1, d2 /* high quotient in lower word */ - movew d2, d0 /* save high quotient */ - swap d0 - movew sp@(10), d2 /* get low dividend + high rest */ - divu d1, d2 /* low quotient */ - movew d2, d0 - jra L6 - -L3: movel d1, d2 /* use d2 as divisor backup */ -L4: lsrl IMM (1), d1 /* shift divisor */ - lsrl IMM (1), d0 /* shift dividend */ - cmpl IMM (0x10000), d1 /* still divisor >= 2 ^ 16 ? */ - jcc L4 - divu d1, d0 /* now we have 16 bit divisor */ - andl IMM (0xffff), d0 /* mask out divisor, ignore remainder */ - -/* Multiply the 16 bit tentative quotient with the 32 bit divisor. Because of - the operand ranges, this might give a 33 bit product. If this product is - greater than the dividend, the tentative quotient was too large. */ - movel d2, d1 - mulu d0, d1 /* low part, 32 bits */ - swap d2 - mulu d0, d2 /* high part, at most 17 bits */ - swap d2 /* align high part with low part */ - tstw d2 /* high part 17 bits? */ - jne L5 /* if 17 bits, quotient was too large */ - addl d2, d1 /* add parts */ - jcs L5 /* if sum is 33 bits, quotient was too large */ - cmpl sp@(8), d1 /* compare the sum with the dividend */ - jls L6 /* if sum > dividend, quotient was too large */ -L5: subql IMM (1), d0 /* adjust quotient */ - -L6: movel sp@+, d2 - rts - -#else /* __mcf5200__ || __mcoldfire__ */ - -/* Coldfire implementation of non-restoring division algorithm from - Hennessy & Patterson, Appendix A. */ - link a6,IMM (-12) - moveml d2-d4,sp@ - movel a6@(8),d0 - movel a6@(12),d1 - clrl d2 | clear p - moveq IMM (31),d4 -L1: addl d0,d0 | shift reg pair (p,a) one bit left - addxl d2,d2 - movl d2,d3 | subtract b from p, store in tmp. - subl d1,d3 - jcs L2 | if no carry, - bset IMM (0),d0 | set the low order bit of a to 1, - movl d3,d2 | and store tmp in p. -L2: subql IMM (1),d4 - jcc L1 - moveml sp@,d2-d4 | restore data registers - unlk a6 | and return - rts -#endif /* __mcf5200__ || __mcoldfire__ */ - diff --git a/arch/m68knommu/lib/umodsi3.S b/arch/m68knommu/lib/umodsi3.S deleted file mode 100644 index 5def5f626478..000000000000 --- a/arch/m68knommu/lib/umodsi3.S +++ /dev/null @@ -1,113 +0,0 @@ -/* libgcc1 routines for 68000 w/o floating-point hardware. - Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) any -later version. - -In addition to the permissions in the GNU General Public License, the -Free Software Foundation gives you unlimited permission to link the -compiled version of this file with other programs, and to distribute -those programs without any restriction coming from the use of this -file. (The General Public License restrictions do apply in other -respects; for example, they cover modification of the file, and -distribution when not linked into another program.) - -This file is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with files - compiled with GCC to produce an executable, this does not cause - the resulting executable to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. */ - -/* Use this one for any 680x0; assumes no floating point hardware. - The trailing " '" appearing on some lines is for ANSI preprocessors. Yuk. - Some of this code comes from MINIX, via the folks at ericsson. - D. V. Henkel-Wallace (gumby@cygnus.com) Fete Bastille, 1992 -*/ - -/* These are predefined by new versions of GNU cpp. */ - -#ifndef __USER_LABEL_PREFIX__ -#define __USER_LABEL_PREFIX__ _ -#endif - -#ifndef __REGISTER_PREFIX__ -#define __REGISTER_PREFIX__ -#endif - -#ifndef __IMMEDIATE_PREFIX__ -#define __IMMEDIATE_PREFIX__ # -#endif - -/* ANSI concatenation macros. */ - -#define CONCAT1(a, b) CONCAT2(a, b) -#define CONCAT2(a, b) a ## b - -/* Use the right prefix for global labels. */ - -#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) - -/* Use the right prefix for registers. */ - -#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) - -/* Use the right prefix for immediate values. */ - -#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__, x) - -#define d0 REG (d0) -#define d1 REG (d1) -#define d2 REG (d2) -#define d3 REG (d3) -#define d4 REG (d4) -#define d5 REG (d5) -#define d6 REG (d6) -#define d7 REG (d7) -#define a0 REG (a0) -#define a1 REG (a1) -#define a2 REG (a2) -#define a3 REG (a3) -#define a4 REG (a4) -#define a5 REG (a5) -#define a6 REG (a6) -#define fp REG (fp) -#define sp REG (sp) - - .text - .proc - .globl SYM (__umodsi3) -SYM (__umodsi3): - movel sp@(8), d1 /* d1 = divisor */ - movel sp@(4), d0 /* d0 = dividend */ - movel d1, sp@- - movel d0, sp@- - jbsr SYM (__udivsi3) - addql IMM (8), sp - movel sp@(8), d1 /* d1 = divisor */ -#if !(defined(__mcf5200__) || defined(__mcoldfire__)) - movel d1, sp@- - movel d0, sp@- - jbsr SYM (__mulsi3) /* d0 = (a/b)*b */ - addql IMM (8), sp -#else - mulsl d1,d0 -#endif - movel sp@(4), d1 /* d1 = dividend */ - subl d0, d1 /* d1 = a - (a/b)*b */ - movel d1, d0 - rts - diff --git a/arch/m68knommu/mm/Makefile b/arch/m68knommu/mm/Makefile deleted file mode 100644 index b54ab6b4b523..000000000000 --- a/arch/m68knommu/mm/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the linux m68knommu specific parts of the memory manager. -# - -obj-y += init.o kmap.o diff --git a/arch/m68knommu/mm/init.c b/arch/m68knommu/mm/init.c deleted file mode 100644 index 8a6653f56bd8..000000000000 --- a/arch/m68knommu/mm/init.c +++ /dev/null @@ -1,193 +0,0 @@ -/* - * linux/arch/m68knommu/mm/init.c - * - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Kenneth Albanowski <kjahds@kjahds.com>, - * Copyright (C) 2000 Lineo, Inc. (www.lineo.com) - * - * Based on: - * - * linux/arch/m68k/mm/init.c - * - * Copyright (C) 1995 Hamish Macdonald - * - * JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com) - * DEC/2000 -- linux 2.4 support <davidm@snapgear.com> - */ - -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/ptrace.h> -#include <linux/mman.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/init.h> -#include <linux/highmem.h> -#include <linux/pagemap.h> -#include <linux/bootmem.h> -#include <linux/gfp.h> - -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/system.h> -#include <asm/machdep.h> - -#undef DEBUG - -extern void die_if_kernel(char *,struct pt_regs *,long); -extern void free_initmem(void); - -/* - * BAD_PAGE is the page that is used for page faults when linux - * is out-of-memory. Older versions of linux just did a - * do_exit(), but using this instead means there is less risk - * for a process dying in kernel mode, possibly leaving a inode - * unused etc.. - * - * BAD_PAGETABLE is the accompanying page-table: it is initialized - * to point to BAD_PAGE entries. - * - * ZERO_PAGE is a special page that is used for zero-initialized - * data and COW. - */ -static unsigned long empty_bad_page_table; - -static unsigned long empty_bad_page; - -unsigned long empty_zero_page; - -extern unsigned long memory_start; -extern unsigned long memory_end; - -/* - * paging_init() continues the virtual memory environment setup which - * was begun by the code in arch/head.S. - * The parameters are pointers to where to stick the starting and ending - * addresses of available kernel virtual memory. - */ -void __init paging_init(void) -{ - /* - * Make sure start_mem is page aligned, otherwise bootmem and - * page_alloc get different views of the world. - */ -#ifdef DEBUG - unsigned long start_mem = PAGE_ALIGN(memory_start); -#endif - unsigned long end_mem = memory_end & PAGE_MASK; - -#ifdef DEBUG - printk (KERN_DEBUG "start_mem is %#lx\nvirtual_end is %#lx\n", - start_mem, end_mem); -#endif - - /* - * Initialize the bad page table and bad page to point - * to a couple of allocated pages. - */ - empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); - empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); - empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); - memset((void *)empty_zero_page, 0, PAGE_SIZE); - - /* - * Set up SFC/DFC registers (user data space). - */ - set_fs (USER_DS); - -#ifdef DEBUG - printk (KERN_DEBUG "before free_area_init\n"); - - printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n", - start_mem, end_mem); -#endif - - { - unsigned long zones_size[MAX_NR_ZONES] = {0, }; - - zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT; - free_area_init(zones_size); - } -} - -void __init mem_init(void) -{ - int codek = 0, datak = 0, initk = 0; - unsigned long tmp; - extern char _etext, _stext, _sdata, _ebss, __init_begin, __init_end; - extern unsigned int _ramend, _rambase; - unsigned long len = _ramend - _rambase; - unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */ - unsigned long end_mem = memory_end; /* DAVIDM - this must not include kernel stack at top */ - - pr_debug("Mem_init: start=%lx, end=%lx\n", start_mem, end_mem); - - end_mem &= PAGE_MASK; - high_memory = (void *) end_mem; - - start_mem = PAGE_ALIGN(start_mem); - max_mapnr = num_physpages = (((unsigned long) high_memory) - PAGE_OFFSET) >> PAGE_SHIFT; - - /* this will put all memory onto the freelists */ - totalram_pages = free_all_bootmem(); - - codek = (&_etext - &_stext) >> 10; - datak = (&_ebss - &_sdata) >> 10; - initk = (&__init_begin - &__init_end) >> 10; - - tmp = nr_free_pages() << PAGE_SHIFT; - printk(KERN_INFO "Memory available: %luk/%luk RAM, (%dk kernel code, %dk data)\n", - tmp >> 10, - len >> 10, - codek, - datak - ); -} - - -#ifdef CONFIG_BLK_DEV_INITRD -void free_initrd_mem(unsigned long start, unsigned long end) -{ - int pages = 0; - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page(start); - totalram_pages++; - pages++; - } - printk (KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages * (PAGE_SIZE / 1024)); -} -#endif - -void -free_initmem() -{ -#ifdef CONFIG_RAMKERNEL - unsigned long addr; - extern char __init_begin, __init_end; - /* - * The following code should be cool even if these sections - * are not page aligned. - */ - addr = PAGE_ALIGN((unsigned long)(&__init_begin)); - /* next to check that the page we free is not a partial page */ - for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - printk(KERN_NOTICE "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n", - (addr - PAGE_ALIGN((long) &__init_begin)) >> 10, - (int)(PAGE_ALIGN((unsigned long)(&__init_begin))), - (int)(addr - PAGE_SIZE)); -#endif -} - diff --git a/arch/m68knommu/mm/kmap.c b/arch/m68knommu/mm/kmap.c deleted file mode 100644 index ece8d5ad4e6c..000000000000 --- a/arch/m68knommu/mm/kmap.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * linux/arch/m68knommu/mm/kmap.c - * - * Copyright (C) 2000 Lineo, <davidm@snapgear.com> - * Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com> - */ - -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/vmalloc.h> - -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/pgalloc.h> -#include <asm/io.h> -#include <asm/system.h> - -#undef DEBUG - -/* - * Map some physical address range into the kernel address space. - */ -void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) -{ - return (void *)physaddr; -} - -/* - * Unmap a ioremap()ed region again. - */ -void iounmap(void *addr) -{ -} - -/* - * Set new cache mode for some kernel address space. - * The caller must push data for that range itself, if such data may already - * be in the cache. - */ -void kernel_set_cachemode(void *addr, unsigned long size, int cmode) -{ -} diff --git a/arch/m68knommu/platform/5206/Makefile b/arch/m68knommu/platform/5206/Makefile deleted file mode 100644 index b5db05625cfa..000000000000 --- a/arch/m68knommu/platform/5206/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# -# Makefile for the m68knommu linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o gpio.o - diff --git a/arch/m68knommu/platform/5206/config.c b/arch/m68knommu/platform/5206/config.c deleted file mode 100644 index 9c335465e66d..000000000000 --- a/arch/m68knommu/platform/5206/config.c +++ /dev/null @@ -1,121 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/5206/config.c - * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2000-2001, Lineo Inc. (www.lineo.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m5206_uart_platform[] = { - { - .mapbase = MCF_MBAR + MCFUART_BASE1, - .irq = 73, - }, - { - .mapbase = MCF_MBAR + MCFUART_BASE2, - .irq = 74, - }, - { }, -}; - -static struct platform_device m5206_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m5206_uart_platform, -}; - -static struct platform_device *m5206_devices[] __initdata = { - &m5206_uart, -}; - -/***************************************************************************/ - -static void __init m5206_uart_init_line(int line, int irq) -{ - if (line == 0) { - writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); - writeb(irq, MCFUART_BASE1 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART0); - } else if (line == 1) { - writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); - writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART1); - } -} - -static void __init m5206_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m5206_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m5206_uart_init_line(line, m5206_uart_platform[line].irq); -} - -/***************************************************************************/ - -static void __init m5206_timers_init(void) -{ - /* Timer1 is always used as system timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER1ICR); - mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); - -#ifdef CONFIG_HIGHPROFILE - /* Timer2 is to be used as a high speed profile timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER2ICR); - mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); -#endif -} - -/***************************************************************************/ - -void m5206_cpu_reset(void) -{ - local_irq_disable(); - /* Set watchdog to soft reset, and enabled */ - __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); - for (;;) - /* wait for watchdog to timeout */; -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ - mach_reset = m5206_cpu_reset; - m5206_timers_init(); - m5206_uarts_init(); - - /* Only support the external interrupts on their primary level */ - mcf_mapirq2imr(25, MCFINTC_EINT1); - mcf_mapirq2imr(28, MCFINTC_EINT4); - mcf_mapirq2imr(31, MCFINTC_EINT7); -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - platform_add_devices(m5206_devices, ARRAY_SIZE(m5206_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/5206/gpio.c b/arch/m68knommu/platform/5206/gpio.c deleted file mode 100644 index b9ab4a120f28..000000000000 --- a/arch/m68knommu/platform/5206/gpio.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "PP", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFSIM_PADDR, - .podr = (void __iomem *) MCFSIM_PADAT, - .ppdr = (void __iomem *) MCFSIM_PADAT, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/5206e/Makefile b/arch/m68knommu/platform/5206e/Makefile deleted file mode 100644 index b5db05625cfa..000000000000 --- a/arch/m68knommu/platform/5206e/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# -# Makefile for the m68knommu linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o gpio.o - diff --git a/arch/m68knommu/platform/5206e/config.c b/arch/m68knommu/platform/5206e/config.c deleted file mode 100644 index 942397984c66..000000000000 --- a/arch/m68knommu/platform/5206e/config.c +++ /dev/null @@ -1,127 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/5206e/config.c - * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> -#include <asm/mcfdma.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m5206e_uart_platform[] = { - { - .mapbase = MCF_MBAR + MCFUART_BASE1, - .irq = 73, - }, - { - .mapbase = MCF_MBAR + MCFUART_BASE2, - .irq = 74, - }, - { }, -}; - -static struct platform_device m5206e_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m5206e_uart_platform, -}; - -static struct platform_device *m5206e_devices[] __initdata = { - &m5206e_uart, -}; - -/***************************************************************************/ - -static void __init m5206e_uart_init_line(int line, int irq) -{ - if (line == 0) { - writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); - writeb(irq, MCFUART_BASE1 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART0); - } else if (line == 1) { - writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); - writeb(irq, MCFUART_BASE2 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART1); - } -} - -static void __init m5206e_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m5206e_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m5206e_uart_init_line(line, m5206e_uart_platform[line].irq); -} - -/***************************************************************************/ - -static void __init m5206e_timers_init(void) -{ - /* Timer1 is always used as system timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER1ICR); - mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); - -#ifdef CONFIG_HIGHPROFILE - /* Timer2 is to be used as a high speed profile timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER2ICR); - mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); -#endif -} - -/***************************************************************************/ - -void m5206e_cpu_reset(void) -{ - local_irq_disable(); - /* Set watchdog to soft reset, and enabled */ - __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); - for (;;) - /* wait for watchdog to timeout */; -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ -#if defined(CONFIG_NETtel) - /* Copy command line from FLASH to local buffer... */ - memcpy(commandp, (char *) 0xf0004000, size); - commandp[size-1] = 0; -#endif /* CONFIG_NETtel */ - - mach_reset = m5206e_cpu_reset; - m5206e_timers_init(); - m5206e_uarts_init(); - - /* Only support the external interrupts on their primary level */ - mcf_mapirq2imr(25, MCFINTC_EINT1); - mcf_mapirq2imr(28, MCFINTC_EINT4); - mcf_mapirq2imr(31, MCFINTC_EINT7); -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - platform_add_devices(m5206e_devices, ARRAY_SIZE(m5206e_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/5206e/gpio.c b/arch/m68knommu/platform/5206e/gpio.c deleted file mode 100644 index b9ab4a120f28..000000000000 --- a/arch/m68knommu/platform/5206e/gpio.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "PP", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFSIM_PADDR, - .podr = (void __iomem *) MCFSIM_PADAT, - .ppdr = (void __iomem *) MCFSIM_PADAT, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/520x/Makefile b/arch/m68knommu/platform/520x/Makefile deleted file mode 100644 index ad3f4e5a57ce..000000000000 --- a/arch/m68knommu/platform/520x/Makefile +++ /dev/null @@ -1,17 +0,0 @@ -# -# Makefile for the M5208 specific file. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o gpio.o diff --git a/arch/m68knommu/platform/520x/config.c b/arch/m68knommu/platform/520x/config.c deleted file mode 100644 index 621238f1a219..000000000000 --- a/arch/m68knommu/platform/520x/config.c +++ /dev/null @@ -1,311 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/520x/config.c - * - * Copyright (C) 2005, Freescale (www.freescale.com) - * Copyright (C) 2005, Intec Automation (mike@steroidmicros.com) - * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/spi/spi.h> -#include <linux/gpio.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> -#include <asm/mcfqspi.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m520x_uart_platform[] = { - { - .mapbase = MCFUART_BASE1, - .irq = MCFINT_VECBASE + MCFINT_UART0, - }, - { - .mapbase = MCFUART_BASE2, - .irq = MCFINT_VECBASE + MCFINT_UART1, - }, - { - .mapbase = MCFUART_BASE3, - .irq = MCFINT_VECBASE + MCFINT_UART2, - }, - { }, -}; - -static struct platform_device m520x_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m520x_uart_platform, -}; - -static struct resource m520x_fec_resources[] = { - { - .start = MCFFEC_BASE, - .end = MCFFEC_BASE + MCFFEC_SIZE - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = 64 + 36, - .end = 64 + 36, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 40, - .end = 64 + 40, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 42, - .end = 64 + 42, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device m520x_fec = { - .name = "fec", - .id = 0, - .num_resources = ARRAY_SIZE(m520x_fec_resources), - .resource = m520x_fec_resources, -}; - -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) -static struct resource m520x_qspi_resources[] = { - { - .start = MCFQSPI_IOBASE, - .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = MCFINT_VECBASE + MCFINT_QSPI, - .end = MCFINT_VECBASE + MCFINT_QSPI, - .flags = IORESOURCE_IRQ, - }, -}; - -#define MCFQSPI_CS0 62 -#define MCFQSPI_CS1 63 -#define MCFQSPI_CS2 44 - -static int m520x_cs_setup(struct mcfqspi_cs_control *cs_control) -{ - int status; - - status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); - goto fail0; - } - status = gpio_direction_output(MCFQSPI_CS0, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); - goto fail1; - } - - status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); - goto fail1; - } - status = gpio_direction_output(MCFQSPI_CS1, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); - goto fail2; - } - - status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); - goto fail2; - } - status = gpio_direction_output(MCFQSPI_CS2, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); - goto fail3; - } - - return 0; - -fail3: - gpio_free(MCFQSPI_CS2); -fail2: - gpio_free(MCFQSPI_CS1); -fail1: - gpio_free(MCFQSPI_CS0); -fail0: - return status; -} - -static void m520x_cs_teardown(struct mcfqspi_cs_control *cs_control) -{ - gpio_free(MCFQSPI_CS2); - gpio_free(MCFQSPI_CS1); - gpio_free(MCFQSPI_CS0); -} - -static void m520x_cs_select(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - switch (chip_select) { - case 0: - gpio_set_value(MCFQSPI_CS0, cs_high); - break; - case 1: - gpio_set_value(MCFQSPI_CS1, cs_high); - break; - case 2: - gpio_set_value(MCFQSPI_CS2, cs_high); - break; - } -} - -static void m520x_cs_deselect(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - switch (chip_select) { - case 0: - gpio_set_value(MCFQSPI_CS0, !cs_high); - break; - case 1: - gpio_set_value(MCFQSPI_CS1, !cs_high); - break; - case 2: - gpio_set_value(MCFQSPI_CS2, !cs_high); - break; - } -} - -static struct mcfqspi_cs_control m520x_cs_control = { - .setup = m520x_cs_setup, - .teardown = m520x_cs_teardown, - .select = m520x_cs_select, - .deselect = m520x_cs_deselect, -}; - -static struct mcfqspi_platform_data m520x_qspi_data = { - .bus_num = 0, - .num_chipselect = 3, - .cs_control = &m520x_cs_control, -}; - -static struct platform_device m520x_qspi = { - .name = "mcfqspi", - .id = 0, - .num_resources = ARRAY_SIZE(m520x_qspi_resources), - .resource = m520x_qspi_resources, - .dev.platform_data = &m520x_qspi_data, -}; - -static void __init m520x_qspi_init(void) -{ - u16 par; - /* setup Port QS for QSPI with gpio CS control */ - writeb(0x3f, MCF_GPIO_PAR_QSPI); - /* make U1CTS and U2RTS gpio for cs_control */ - par = readw(MCF_GPIO_PAR_UART); - par &= 0x00ff; - writew(par, MCF_GPIO_PAR_UART); -} -#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ - - -static struct platform_device *m520x_devices[] __initdata = { - &m520x_uart, - &m520x_fec, -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - &m520x_qspi, -#endif -}; - -/***************************************************************************/ - -static void __init m520x_uart_init_line(int line, int irq) -{ - u16 par; - u8 par2; - - switch (line) { - case 0: - par = readw(MCF_GPIO_PAR_UART); - par |= MCF_GPIO_PAR_UART_PAR_UTXD0 | - MCF_GPIO_PAR_UART_PAR_URXD0; - writew(par, MCF_GPIO_PAR_UART); - break; - case 1: - par = readw(MCF_GPIO_PAR_UART); - par |= MCF_GPIO_PAR_UART_PAR_UTXD1 | - MCF_GPIO_PAR_UART_PAR_URXD1; - writew(par, MCF_GPIO_PAR_UART); - break; - case 2: - par2 = readb(MCF_GPIO_PAR_FECI2C); - par2 &= ~0x0F; - par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 | - MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2; - writeb(par2, MCF_GPIO_PAR_FECI2C); - break; - } -} - -static void __init m520x_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m520x_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m520x_uart_init_line(line, m520x_uart_platform[line].irq); -} - -/***************************************************************************/ - -static void __init m520x_fec_init(void) -{ - u8 v; - - /* Set multi-function pins to ethernet mode */ - v = readb(MCF_GPIO_PAR_FEC); - writeb(v | 0xf0, MCF_GPIO_PAR_FEC); - - v = readb(MCF_GPIO_PAR_FECI2C); - writeb(v | 0x0f, MCF_GPIO_PAR_FECI2C); -} - -/***************************************************************************/ - -static void m520x_cpu_reset(void) -{ - local_irq_disable(); - __raw_writeb(MCF_RCR_SWRESET, MCF_RCR); -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ - mach_reset = m520x_cpu_reset; - m520x_uarts_init(); - m520x_fec_init(); -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - m520x_qspi_init(); -#endif -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - platform_add_devices(m520x_devices, ARRAY_SIZE(m520x_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/520x/gpio.c b/arch/m68knommu/platform/520x/gpio.c deleted file mode 100644 index d757328563d1..000000000000 --- a/arch/m68knommu/platform/520x/gpio.c +++ /dev/null @@ -1,211 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "PIRQ", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFEPORT_EPDDR, - .podr = (void __iomem *) MCFEPORT_EPDR, - .ppdr = (void __iomem *) MCFEPORT_EPPDR, - }, - { - .gpio_chip = { - .label = "BUSCTL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 8, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, - .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, - }, - { - .gpio_chip = { - .label = "BE", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 16, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BE, - .podr = (void __iomem *) MCFGPIO_PODR_BE, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BE, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BE, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BE, - }, - { - .gpio_chip = { - .label = "CS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 25, - .ngpio = 3, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_CS, - .podr = (void __iomem *) MCFGPIO_PODR_CS, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, - }, - { - .gpio_chip = { - .label = "FECI2C", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 32, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, - .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, - }, - { - .gpio_chip = { - .label = "QSPI", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 40, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, - .podr = (void __iomem *) MCFGPIO_PODR_QSPI, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, - }, - { - .gpio_chip = { - .label = "TIMER", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 48, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER, - .podr = (void __iomem *) MCFGPIO_PODR_TIMER, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, - .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, - .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER, - }, - { - .gpio_chip = { - .label = "UART", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 56, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_UART, - .podr = (void __iomem *) MCFGPIO_PODR_UART, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UART, - .setr = (void __iomem *) MCFGPIO_PPDSDR_UART, - .clrr = (void __iomem *) MCFGPIO_PCLRR_UART, - }, - { - .gpio_chip = { - .label = "FECH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 64, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FECH, - .podr = (void __iomem *) MCFGPIO_PODR_FECH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FECH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FECH, - }, - { - .gpio_chip = { - .label = "FECL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 72, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FECL, - .podr = (void __iomem *) MCFGPIO_PODR_FECL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FECL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FECL, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/523x/Makefile b/arch/m68knommu/platform/523x/Makefile deleted file mode 100644 index c04b8f71c88c..000000000000 --- a/arch/m68knommu/platform/523x/Makefile +++ /dev/null @@ -1,17 +0,0 @@ -# -# Makefile for the m68knommu linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o gpio.o diff --git a/arch/m68knommu/platform/523x/config.c b/arch/m68knommu/platform/523x/config.c deleted file mode 100644 index 418a76feb1e3..000000000000 --- a/arch/m68knommu/platform/523x/config.c +++ /dev/null @@ -1,293 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/523x/config.c - * - * Sub-architcture dependant initialization code for the Freescale - * 523x CPUs. - * - * Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/spi/spi.h> -#include <linux/gpio.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> -#include <asm/mcfqspi.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m523x_uart_platform[] = { - { - .mapbase = MCFUART_BASE1, - .irq = MCFINT_VECBASE + MCFINT_UART0, - }, - { - .mapbase = MCFUART_BASE2, - .irq = MCFINT_VECBASE + MCFINT_UART0 + 1, - }, - { - .mapbase = MCFUART_BASE3, - .irq = MCFINT_VECBASE + MCFINT_UART0 + 2, - }, - { }, -}; - -static struct platform_device m523x_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m523x_uart_platform, -}; - -static struct resource m523x_fec_resources[] = { - { - .start = MCFFEC_BASE, - .end = MCFFEC_BASE + MCFFEC_SIZE - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = 64 + 23, - .end = 64 + 23, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 27, - .end = 64 + 27, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 29, - .end = 64 + 29, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device m523x_fec = { - .name = "fec", - .id = 0, - .num_resources = ARRAY_SIZE(m523x_fec_resources), - .resource = m523x_fec_resources, -}; - -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) -static struct resource m523x_qspi_resources[] = { - { - .start = MCFQSPI_IOBASE, - .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = MCFINT_VECBASE + MCFINT_QSPI, - .end = MCFINT_VECBASE + MCFINT_QSPI, - .flags = IORESOURCE_IRQ, - }, -}; - -#define MCFQSPI_CS0 91 -#define MCFQSPI_CS1 92 -#define MCFQSPI_CS2 103 -#define MCFQSPI_CS3 99 - -static int m523x_cs_setup(struct mcfqspi_cs_control *cs_control) -{ - int status; - - status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); - goto fail0; - } - status = gpio_direction_output(MCFQSPI_CS0, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); - goto fail1; - } - - status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); - goto fail1; - } - status = gpio_direction_output(MCFQSPI_CS1, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); - goto fail2; - } - - status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); - goto fail2; - } - status = gpio_direction_output(MCFQSPI_CS2, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); - goto fail3; - } - - status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS3 failed\n"); - goto fail3; - } - status = gpio_direction_output(MCFQSPI_CS3, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n"); - goto fail4; - } - - return 0; - -fail4: - gpio_free(MCFQSPI_CS3); -fail3: - gpio_free(MCFQSPI_CS2); -fail2: - gpio_free(MCFQSPI_CS1); -fail1: - gpio_free(MCFQSPI_CS0); -fail0: - return status; -} - -static void m523x_cs_teardown(struct mcfqspi_cs_control *cs_control) -{ - gpio_free(MCFQSPI_CS3); - gpio_free(MCFQSPI_CS2); - gpio_free(MCFQSPI_CS1); - gpio_free(MCFQSPI_CS0); -} - -static void m523x_cs_select(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - switch (chip_select) { - case 0: - gpio_set_value(MCFQSPI_CS0, cs_high); - break; - case 1: - gpio_set_value(MCFQSPI_CS1, cs_high); - break; - case 2: - gpio_set_value(MCFQSPI_CS2, cs_high); - break; - case 3: - gpio_set_value(MCFQSPI_CS3, cs_high); - break; - } -} - -static void m523x_cs_deselect(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - switch (chip_select) { - case 0: - gpio_set_value(MCFQSPI_CS0, !cs_high); - break; - case 1: - gpio_set_value(MCFQSPI_CS1, !cs_high); - break; - case 2: - gpio_set_value(MCFQSPI_CS2, !cs_high); - break; - case 3: - gpio_set_value(MCFQSPI_CS3, !cs_high); - break; - } -} - -static struct mcfqspi_cs_control m523x_cs_control = { - .setup = m523x_cs_setup, - .teardown = m523x_cs_teardown, - .select = m523x_cs_select, - .deselect = m523x_cs_deselect, -}; - -static struct mcfqspi_platform_data m523x_qspi_data = { - .bus_num = 0, - .num_chipselect = 4, - .cs_control = &m523x_cs_control, -}; - -static struct platform_device m523x_qspi = { - .name = "mcfqspi", - .id = 0, - .num_resources = ARRAY_SIZE(m523x_qspi_resources), - .resource = m523x_qspi_resources, - .dev.platform_data = &m523x_qspi_data, -}; - -static void __init m523x_qspi_init(void) -{ - u16 par; - - /* setup QSPS pins for QSPI with gpio CS control */ - writeb(0x1f, MCFGPIO_PAR_QSPI); - /* and CS2 & CS3 as gpio */ - par = readw(MCFGPIO_PAR_TIMER); - par &= 0x3f3f; - writew(par, MCFGPIO_PAR_TIMER); -} -#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ - -static struct platform_device *m523x_devices[] __initdata = { - &m523x_uart, - &m523x_fec, -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - &m523x_qspi, -#endif -}; - -/***************************************************************************/ - -static void __init m523x_fec_init(void) -{ - u16 par; - u8 v; - - /* Set multi-function pins to ethernet use */ - par = readw(MCF_IPSBAR + 0x100082); - writew(par | 0xf00, MCF_IPSBAR + 0x100082); - v = readb(MCF_IPSBAR + 0x100078); - writeb(v | 0xc0, MCF_IPSBAR + 0x100078); -} - -/***************************************************************************/ - -static void m523x_cpu_reset(void) -{ - local_irq_disable(); - __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR); -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ - mach_reset = m523x_cpu_reset; -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - m523x_fec_init(); -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - m523x_qspi_init(); -#endif - platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/523x/gpio.c b/arch/m68knommu/platform/523x/gpio.c deleted file mode 100644 index 327ebf142c8e..000000000000 --- a/arch/m68knommu/platform/523x/gpio.c +++ /dev/null @@ -1,284 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "PIRQ", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .base = 1, - .ngpio = 7, - }, - .pddr = (void __iomem *) MCFEPORT_EPDDR, - .podr = (void __iomem *) MCFEPORT_EPDR, - .ppdr = (void __iomem *) MCFEPORT_EPPDR, - }, - { - .gpio_chip = { - .label = "ADDR", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 13, - .ngpio = 3, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_ADDR, - .podr = (void __iomem *) MCFGPIO_PODR_ADDR, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, - .setr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, - .clrr = (void __iomem *) MCFGPIO_PCLRR_ADDR, - }, - { - .gpio_chip = { - .label = "DATAH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 16, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_DATAH, - .podr = (void __iomem *) MCFGPIO_PODR_DATAH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAH, - }, - { - .gpio_chip = { - .label = "DATAL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 24, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_DATAL, - .podr = (void __iomem *) MCFGPIO_PODR_DATAL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAL, - }, - { - .gpio_chip = { - .label = "BUSCTL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 32, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, - .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, - }, - { - .gpio_chip = { - .label = "BS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 40, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BS, - .podr = (void __iomem *) MCFGPIO_PODR_BS, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BS, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BS, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BS, - }, - { - .gpio_chip = { - .label = "CS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 49, - .ngpio = 7, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_CS, - .podr = (void __iomem *) MCFGPIO_PODR_CS, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, - }, - { - .gpio_chip = { - .label = "SDRAM", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 56, - .ngpio = 6, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_SDRAM, - .podr = (void __iomem *) MCFGPIO_PODR_SDRAM, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, - .setr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, - .clrr = (void __iomem *) MCFGPIO_PCLRR_SDRAM, - }, - { - .gpio_chip = { - .label = "FECI2C", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 64, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, - .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, - }, - { - .gpio_chip = { - .label = "UARTH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 72, - .ngpio = 2, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_UARTH, - .podr = (void __iomem *) MCFGPIO_PODR_UARTH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTH, - }, - { - .gpio_chip = { - .label = "UARTL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 80, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_UARTL, - .podr = (void __iomem *) MCFGPIO_PODR_UARTL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTL, - }, - { - .gpio_chip = { - .label = "QSPI", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 88, - .ngpio = 5, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, - .podr = (void __iomem *) MCFGPIO_PODR_QSPI, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, - }, - { - .gpio_chip = { - .label = "TIMER", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 96, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER, - .podr = (void __iomem *) MCFGPIO_PODR_TIMER, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, - .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, - .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER, - }, - { - .gpio_chip = { - .label = "ETPU", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 104, - .ngpio = 3, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_ETPU, - .podr = (void __iomem *) MCFGPIO_PODR_ETPU, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ETPU, - .setr = (void __iomem *) MCFGPIO_PPDSDR_ETPU, - .clrr = (void __iomem *) MCFGPIO_PCLRR_ETPU, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/5249/Makefile b/arch/m68knommu/platform/5249/Makefile deleted file mode 100644 index 4bed30fd0073..000000000000 --- a/arch/m68knommu/platform/5249/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# -# Makefile for the m68knommu linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o gpio.o intc2.o - diff --git a/arch/m68knommu/platform/5249/config.c b/arch/m68knommu/platform/5249/config.c deleted file mode 100644 index ceb31e5744a6..000000000000 --- a/arch/m68knommu/platform/5249/config.c +++ /dev/null @@ -1,330 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/5249/config.c - * - * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/spi/spi.h> -#include <linux/gpio.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> -#include <asm/mcfqspi.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m5249_uart_platform[] = { - { - .mapbase = MCF_MBAR + MCFUART_BASE1, - .irq = 73, - }, - { - .mapbase = MCF_MBAR + MCFUART_BASE2, - .irq = 74, - }, - { }, -}; - -static struct platform_device m5249_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m5249_uart_platform, -}; - -#ifdef CONFIG_M5249C3 - -static struct resource m5249_smc91x_resources[] = { - { - .start = 0xe0000300, - .end = 0xe0000300 + 0x100, - .flags = IORESOURCE_MEM, - }, - { - .start = MCFINTC2_GPIOIRQ6, - .end = MCFINTC2_GPIOIRQ6, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device m5249_smc91x = { - .name = "smc91x", - .id = 0, - .num_resources = ARRAY_SIZE(m5249_smc91x_resources), - .resource = m5249_smc91x_resources, -}; - -#endif /* CONFIG_M5249C3 */ - -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) -static struct resource m5249_qspi_resources[] = { - { - .start = MCFQSPI_IOBASE, - .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = MCF_IRQ_QSPI, - .end = MCF_IRQ_QSPI, - .flags = IORESOURCE_IRQ, - }, -}; - -#define MCFQSPI_CS0 29 -#define MCFQSPI_CS1 24 -#define MCFQSPI_CS2 21 -#define MCFQSPI_CS3 22 - -static int m5249_cs_setup(struct mcfqspi_cs_control *cs_control) -{ - int status; - - status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); - goto fail0; - } - status = gpio_direction_output(MCFQSPI_CS0, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); - goto fail1; - } - - status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); - goto fail1; - } - status = gpio_direction_output(MCFQSPI_CS1, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); - goto fail2; - } - - status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); - goto fail2; - } - status = gpio_direction_output(MCFQSPI_CS2, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); - goto fail3; - } - - status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS3 failed\n"); - goto fail3; - } - status = gpio_direction_output(MCFQSPI_CS3, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n"); - goto fail4; - } - - return 0; - -fail4: - gpio_free(MCFQSPI_CS3); -fail3: - gpio_free(MCFQSPI_CS2); -fail2: - gpio_free(MCFQSPI_CS1); -fail1: - gpio_free(MCFQSPI_CS0); -fail0: - return status; -} - -static void m5249_cs_teardown(struct mcfqspi_cs_control *cs_control) -{ - gpio_free(MCFQSPI_CS3); - gpio_free(MCFQSPI_CS2); - gpio_free(MCFQSPI_CS1); - gpio_free(MCFQSPI_CS0); -} - -static void m5249_cs_select(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - switch (chip_select) { - case 0: - gpio_set_value(MCFQSPI_CS0, cs_high); - break; - case 1: - gpio_set_value(MCFQSPI_CS1, cs_high); - break; - case 2: - gpio_set_value(MCFQSPI_CS2, cs_high); - break; - case 3: - gpio_set_value(MCFQSPI_CS3, cs_high); - break; - } -} - -static void m5249_cs_deselect(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - switch (chip_select) { - case 0: - gpio_set_value(MCFQSPI_CS0, !cs_high); - break; - case 1: - gpio_set_value(MCFQSPI_CS1, !cs_high); - break; - case 2: - gpio_set_value(MCFQSPI_CS2, !cs_high); - break; - case 3: - gpio_set_value(MCFQSPI_CS3, !cs_high); - break; - } -} - -static struct mcfqspi_cs_control m5249_cs_control = { - .setup = m5249_cs_setup, - .teardown = m5249_cs_teardown, - .select = m5249_cs_select, - .deselect = m5249_cs_deselect, -}; - -static struct mcfqspi_platform_data m5249_qspi_data = { - .bus_num = 0, - .num_chipselect = 4, - .cs_control = &m5249_cs_control, -}; - -static struct platform_device m5249_qspi = { - .name = "mcfqspi", - .id = 0, - .num_resources = ARRAY_SIZE(m5249_qspi_resources), - .resource = m5249_qspi_resources, - .dev.platform_data = &m5249_qspi_data, -}; - -static void __init m5249_qspi_init(void) -{ - /* QSPI irq setup */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0, - MCF_MBAR + MCFSIM_QSPIICR); - mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI); -} -#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ - - -static struct platform_device *m5249_devices[] __initdata = { - &m5249_uart, -#ifdef CONFIG_M5249C3 - &m5249_smc91x, -#endif -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - &m5249_qspi, -#endif -}; - -/***************************************************************************/ - -static void __init m5249_uart_init_line(int line, int irq) -{ - if (line == 0) { - writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); - writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART0); - } else if (line == 1) { - writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); - writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART1); - } -} - -static void __init m5249_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m5249_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m5249_uart_init_line(line, m5249_uart_platform[line].irq); -} - -/***************************************************************************/ - -#ifdef CONFIG_M5249C3 - -static void __init m5249_smc91x_init(void) -{ - u32 gpio; - - /* Set the GPIO line as interrupt source for smc91x device */ - gpio = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); - writel(gpio | 0x40, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); - - gpio = readl(MCF_MBAR2 + MCFSIM2_INTLEVEL5); - writel(gpio | 0x04000000, MCF_MBAR2 + MCFSIM2_INTLEVEL5); -} - -#endif /* CONFIG_M5249C3 */ - -/***************************************************************************/ - -static void __init m5249_timers_init(void) -{ - /* Timer1 is always used as system timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER1ICR); - mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); - -#ifdef CONFIG_HIGHPROFILE - /* Timer2 is to be used as a high speed profile timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER2ICR); - mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); -#endif -} - -/***************************************************************************/ - -void m5249_cpu_reset(void) -{ - local_irq_disable(); - /* Set watchdog to soft reset, and enabled */ - __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); - for (;;) - /* wait for watchdog to timeout */; -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ - mach_reset = m5249_cpu_reset; - m5249_timers_init(); - m5249_uarts_init(); -#ifdef CONFIG_M5249C3 - m5249_smc91x_init(); -#endif -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - m5249_qspi_init(); -#endif -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - platform_add_devices(m5249_devices, ARRAY_SIZE(m5249_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/5249/gpio.c b/arch/m68knommu/platform/5249/gpio.c deleted file mode 100644 index 2b56c6ef65bf..000000000000 --- a/arch/m68knommu/platform/5249/gpio.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "GPIO0", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .ngpio = 32, - }, - .pddr = (void __iomem *) MCFSIM2_GPIOENABLE, - .podr = (void __iomem *) MCFSIM2_GPIOWRITE, - .ppdr = (void __iomem *) MCFSIM2_GPIOREAD, - }, - { - .gpio_chip = { - .label = "GPIO1", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .base = 32, - .ngpio = 32, - }, - .pddr = (void __iomem *) MCFSIM2_GPIO1ENABLE, - .podr = (void __iomem *) MCFSIM2_GPIO1WRITE, - .ppdr = (void __iomem *) MCFSIM2_GPIO1READ, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/5249/intc2.c b/arch/m68knommu/platform/5249/intc2.c deleted file mode 100644 index 8f4b63e17366..000000000000 --- a/arch/m68knommu/platform/5249/intc2.c +++ /dev/null @@ -1,61 +0,0 @@ -/* - * intc2.c -- support for the 2nd INTC controller of the 5249 - * - * (C) Copyright 2009, Greg Ungerer <gerg@snapgear.com> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/io.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> - -static void intc2_irq_gpio_mask(struct irq_data *d) -{ - u32 imr; - imr = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); - imr &= ~(0x1 << (d->irq - MCFINTC2_GPIOIRQ0)); - writel(imr, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); -} - -static void intc2_irq_gpio_unmask(struct irq_data *d) -{ - u32 imr; - imr = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); - imr |= (0x1 << (d->irq - MCFINTC2_GPIOIRQ0)); - writel(imr, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE); -} - -static void intc2_irq_gpio_ack(struct irq_data *d) -{ - writel(0x1 << (d->irq - MCFINTC2_GPIOIRQ0), MCF_MBAR2 + MCFSIM2_GPIOINTCLEAR); -} - -static struct irq_chip intc2_irq_gpio_chip = { - .name = "CF-INTC2", - .irq_mask = intc2_irq_gpio_mask, - .irq_unmask = intc2_irq_gpio_unmask, - .irq_ack = intc2_irq_gpio_ack, -}; - -static int __init mcf_intc2_init(void) -{ - int irq; - - /* GPIO interrupt sources */ - for (irq = MCFINTC2_GPIOIRQ0; (irq <= MCFINTC2_GPIOIRQ7); irq++) { - set_irq_chip(irq, &intc2_irq_gpio_chip); - set_irq_handler(irq, handle_edge_irq); - } - - return 0; -} - -arch_initcall(mcf_intc2_init); diff --git a/arch/m68knommu/platform/5272/Makefile b/arch/m68knommu/platform/5272/Makefile deleted file mode 100644 index 34110fc14301..000000000000 --- a/arch/m68knommu/platform/5272/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# -# Makefile for the linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o gpio.o intc.o - diff --git a/arch/m68knommu/platform/5272/config.c b/arch/m68knommu/platform/5272/config.c deleted file mode 100644 index 65bb582734e1..000000000000 --- a/arch/m68knommu/platform/5272/config.c +++ /dev/null @@ -1,176 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/5272/config.c - * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/phy.h> -#include <linux/phy_fixed.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> - -/***************************************************************************/ - -/* - * Some platforms need software versions of the GPIO data registers. - */ -unsigned short ppdata; -unsigned char ledbank = 0xff; - -/***************************************************************************/ - -static struct mcf_platform_uart m5272_uart_platform[] = { - { - .mapbase = MCF_MBAR + MCFUART_BASE1, - .irq = MCF_IRQ_UART1, - }, - { - .mapbase = MCF_MBAR + MCFUART_BASE2, - .irq = MCF_IRQ_UART2, - }, - { }, -}; - -static struct platform_device m5272_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m5272_uart_platform, -}; - -static struct resource m5272_fec_resources[] = { - { - .start = MCF_MBAR + 0x840, - .end = MCF_MBAR + 0x840 + 0x1cf, - .flags = IORESOURCE_MEM, - }, - { - .start = MCF_IRQ_ERX, - .end = MCF_IRQ_ERX, - .flags = IORESOURCE_IRQ, - }, - { - .start = MCF_IRQ_ETX, - .end = MCF_IRQ_ETX, - .flags = IORESOURCE_IRQ, - }, - { - .start = MCF_IRQ_ENTC, - .end = MCF_IRQ_ENTC, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device m5272_fec = { - .name = "fec", - .id = 0, - .num_resources = ARRAY_SIZE(m5272_fec_resources), - .resource = m5272_fec_resources, -}; - -static struct platform_device *m5272_devices[] __initdata = { - &m5272_uart, - &m5272_fec, -}; - -/***************************************************************************/ - -static void __init m5272_uart_init_line(int line, int irq) -{ - u32 v; - - if ((line >= 0) && (line < 2)) { - /* Enable the output lines for the serial ports */ - v = readl(MCF_MBAR + MCFSIM_PBCNT); - v = (v & ~0x000000ff) | 0x00000055; - writel(v, MCF_MBAR + MCFSIM_PBCNT); - - v = readl(MCF_MBAR + MCFSIM_PDCNT); - v = (v & ~0x000003fc) | 0x000002a8; - writel(v, MCF_MBAR + MCFSIM_PDCNT); - } -} - -static void __init m5272_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m5272_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m5272_uart_init_line(line, m5272_uart_platform[line].irq); -} - -/***************************************************************************/ - -static void m5272_cpu_reset(void) -{ - local_irq_disable(); - /* Set watchdog to reset, and enabled */ - __raw_writew(0, MCF_MBAR + MCFSIM_WIRR); - __raw_writew(1, MCF_MBAR + MCFSIM_WRRR); - __raw_writew(0, MCF_MBAR + MCFSIM_WCR); - for (;;) - /* wait for watchdog to timeout */; -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ -#if defined (CONFIG_MOD5272) - volatile unsigned char *pivrp; - - /* Set base of device vectors to be 64 */ - pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR); - *pivrp = 0x40; -#endif - -#if defined(CONFIG_NETtel) || defined(CONFIG_SCALES) - /* Copy command line from FLASH to local buffer... */ - memcpy(commandp, (char *) 0xf0004000, size); - commandp[size-1] = 0; -#elif defined(CONFIG_CANCam) - /* Copy command line from FLASH to local buffer... */ - memcpy(commandp, (char *) 0xf0010000, size); - commandp[size-1] = 0; -#endif - - mach_reset = m5272_cpu_reset; -} - -/***************************************************************************/ - -/* - * Some 5272 based boards have the FEC ethernet diectly connected to - * an ethernet switch. In this case we need to use the fixed phy type, - * and we need to declare it early in boot. - */ -static struct fixed_phy_status nettel_fixed_phy_status __initdata = { - .link = 1, - .speed = 100, - .duplex = 0, -}; - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - m5272_uarts_init(); - fixed_phy_add(PHY_POLL, 0, &nettel_fixed_phy_status); - platform_add_devices(m5272_devices, ARRAY_SIZE(m5272_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/5272/gpio.c b/arch/m68knommu/platform/5272/gpio.c deleted file mode 100644 index 57ac10a5d7f7..000000000000 --- a/arch/m68knommu/platform/5272/gpio.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "PA", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .ngpio = 16, - }, - .pddr = (void __iomem *) MCFSIM_PADDR, - .podr = (void __iomem *) MCFSIM_PADAT, - .ppdr = (void __iomem *) MCFSIM_PADAT, - }, - { - .gpio_chip = { - .label = "PB", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .base = 16, - .ngpio = 16, - }, - .pddr = (void __iomem *) MCFSIM_PBDDR, - .podr = (void __iomem *) MCFSIM_PBDAT, - .ppdr = (void __iomem *) MCFSIM_PBDAT, - }, - { - .gpio_chip = { - .label = "PC", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .base = 32, - .ngpio = 16, - }, - .pddr = (void __iomem *) MCFSIM_PCDDR, - .podr = (void __iomem *) MCFSIM_PCDAT, - .ppdr = (void __iomem *) MCFSIM_PCDAT, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/5272/intc.c b/arch/m68knommu/platform/5272/intc.c deleted file mode 100644 index 969ff0a467c6..000000000000 --- a/arch/m68knommu/platform/5272/intc.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * intc.c -- interrupt controller or ColdFire 5272 SoC - * - * (C) Copyright 2009, Greg Ungerer <gerg@snapgear.com> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/irq.h> -#include <linux/io.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/traps.h> - -/* - * The 5272 ColdFire interrupt controller is nothing like any other - * ColdFire interrupt controller - it truly is completely different. - * Given its age it is unlikely to be used on any other ColdFire CPU. - */ - -/* - * The masking and priproty setting of interrupts on the 5272 is done - * via a set of 4 "Interrupt Controller Registers" (ICR). There is a - * loose mapping of vector number to register and internal bits, but - * a table is the easiest and quickest way to map them. - * - * Note that the external interrupts are edge triggered (unlike the - * internal interrupt sources which are level triggered). Which means - * they also need acknowledgeing via acknowledge bits. - */ -struct irqmap { - unsigned char icr; - unsigned char index; - unsigned char ack; -}; - -static struct irqmap intc_irqmap[MCFINT_VECMAX - MCFINT_VECBASE] = { - /*MCF_IRQ_SPURIOUS*/ { .icr = 0, .index = 0, .ack = 0, }, - /*MCF_IRQ_EINT1*/ { .icr = MCFSIM_ICR1, .index = 28, .ack = 1, }, - /*MCF_IRQ_EINT2*/ { .icr = MCFSIM_ICR1, .index = 24, .ack = 1, }, - /*MCF_IRQ_EINT3*/ { .icr = MCFSIM_ICR1, .index = 20, .ack = 1, }, - /*MCF_IRQ_EINT4*/ { .icr = MCFSIM_ICR1, .index = 16, .ack = 1, }, - /*MCF_IRQ_TIMER1*/ { .icr = MCFSIM_ICR1, .index = 12, .ack = 0, }, - /*MCF_IRQ_TIMER2*/ { .icr = MCFSIM_ICR1, .index = 8, .ack = 0, }, - /*MCF_IRQ_TIMER3*/ { .icr = MCFSIM_ICR1, .index = 4, .ack = 0, }, - /*MCF_IRQ_TIMER4*/ { .icr = MCFSIM_ICR1, .index = 0, .ack = 0, }, - /*MCF_IRQ_UART1*/ { .icr = MCFSIM_ICR2, .index = 28, .ack = 0, }, - /*MCF_IRQ_UART2*/ { .icr = MCFSIM_ICR2, .index = 24, .ack = 0, }, - /*MCF_IRQ_PLIP*/ { .icr = MCFSIM_ICR2, .index = 20, .ack = 0, }, - /*MCF_IRQ_PLIA*/ { .icr = MCFSIM_ICR2, .index = 16, .ack = 0, }, - /*MCF_IRQ_USB0*/ { .icr = MCFSIM_ICR2, .index = 12, .ack = 0, }, - /*MCF_IRQ_USB1*/ { .icr = MCFSIM_ICR2, .index = 8, .ack = 0, }, - /*MCF_IRQ_USB2*/ { .icr = MCFSIM_ICR2, .index = 4, .ack = 0, }, - /*MCF_IRQ_USB3*/ { .icr = MCFSIM_ICR2, .index = 0, .ack = 0, }, - /*MCF_IRQ_USB4*/ { .icr = MCFSIM_ICR3, .index = 28, .ack = 0, }, - /*MCF_IRQ_USB5*/ { .icr = MCFSIM_ICR3, .index = 24, .ack = 0, }, - /*MCF_IRQ_USB6*/ { .icr = MCFSIM_ICR3, .index = 20, .ack = 0, }, - /*MCF_IRQ_USB7*/ { .icr = MCFSIM_ICR3, .index = 16, .ack = 0, }, - /*MCF_IRQ_DMA*/ { .icr = MCFSIM_ICR3, .index = 12, .ack = 0, }, - /*MCF_IRQ_ERX*/ { .icr = MCFSIM_ICR3, .index = 8, .ack = 0, }, - /*MCF_IRQ_ETX*/ { .icr = MCFSIM_ICR3, .index = 4, .ack = 0, }, - /*MCF_IRQ_ENTC*/ { .icr = MCFSIM_ICR3, .index = 0, .ack = 0, }, - /*MCF_IRQ_QSPI*/ { .icr = MCFSIM_ICR4, .index = 28, .ack = 0, }, - /*MCF_IRQ_EINT5*/ { .icr = MCFSIM_ICR4, .index = 24, .ack = 1, }, - /*MCF_IRQ_EINT6*/ { .icr = MCFSIM_ICR4, .index = 20, .ack = 1, }, - /*MCF_IRQ_SWTO*/ { .icr = MCFSIM_ICR4, .index = 16, .ack = 0, }, -}; - -/* - * The act of masking the interrupt also has a side effect of 'ack'ing - * an interrupt on this irq (for the external irqs). So this mask function - * is also an ack_mask function. - */ -static void intc_irq_mask(struct irq_data *d) -{ - unsigned int irq = d->irq; - - if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { - u32 v; - irq -= MCFINT_VECBASE; - v = 0x8 << intc_irqmap[irq].index; - writel(v, MCF_MBAR + intc_irqmap[irq].icr); - } -} - -static void intc_irq_unmask(struct irq_data *d) -{ - unsigned int irq = d->irq; - - if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { - u32 v; - irq -= MCFINT_VECBASE; - v = 0xd << intc_irqmap[irq].index; - writel(v, MCF_MBAR + intc_irqmap[irq].icr); - } -} - -static void intc_irq_ack(struct irq_data *d) -{ - unsigned int irq = d->irq; - - /* Only external interrupts are acked */ - if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { - irq -= MCFINT_VECBASE; - if (intc_irqmap[irq].ack) { - u32 v; - v = readl(MCF_MBAR + intc_irqmap[irq].icr); - v &= (0x7 << intc_irqmap[irq].index); - v |= (0x8 << intc_irqmap[irq].index); - writel(v, MCF_MBAR + intc_irqmap[irq].icr); - } - } -} - -static int intc_irq_set_type(struct irq_data *d, unsigned int type) -{ - unsigned int irq = d->irq; - - if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { - irq -= MCFINT_VECBASE; - if (intc_irqmap[irq].ack) { - u32 v; - v = readl(MCF_MBAR + MCFSIM_PITR); - if (type == IRQ_TYPE_EDGE_FALLING) - v &= ~(0x1 << (32 - irq)); - else - v |= (0x1 << (32 - irq)); - writel(v, MCF_MBAR + MCFSIM_PITR); - } - } - return 0; -} - -/* - * Simple flow handler to deal with the external edge triggered interrupts. - * We need to be careful with the masking/acking due to the side effects - * of masking an interrupt. - */ -static void intc_external_irq(unsigned int irq, struct irq_desc *desc) -{ - get_irq_desc_chip(desc)->irq_ack(&desc->irq_data); - handle_simple_irq(irq, desc); -} - -static struct irq_chip intc_irq_chip = { - .name = "CF-INTC", - .irq_mask = intc_irq_mask, - .irq_unmask = intc_irq_unmask, - .irq_mask_ack = intc_irq_mask, - .irq_ack = intc_irq_ack, - .irq_set_type = intc_irq_set_type, -}; - -void __init init_IRQ(void) -{ - int irq, edge; - - init_vectors(); - - /* Mask all interrupt sources */ - writel(0x88888888, MCF_MBAR + MCFSIM_ICR1); - writel(0x88888888, MCF_MBAR + MCFSIM_ICR2); - writel(0x88888888, MCF_MBAR + MCFSIM_ICR3); - writel(0x88888888, MCF_MBAR + MCFSIM_ICR4); - - for (irq = 0; (irq < NR_IRQS); irq++) { - set_irq_chip(irq, &intc_irq_chip); - edge = 0; - if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) - edge = intc_irqmap[irq - MCFINT_VECBASE].ack; - if (edge) { - set_irq_type(irq, IRQ_TYPE_EDGE_RISING); - set_irq_handler(irq, intc_external_irq); - } else { - set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH); - set_irq_handler(irq, handle_level_irq); - } - } -} - diff --git a/arch/m68knommu/platform/527x/Makefile b/arch/m68knommu/platform/527x/Makefile deleted file mode 100644 index 6ac4b57370ea..000000000000 --- a/arch/m68knommu/platform/527x/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# -# Makefile for the linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o gpio.o - diff --git a/arch/m68knommu/platform/527x/config.c b/arch/m68knommu/platform/527x/config.c deleted file mode 100644 index fa359593b613..000000000000 --- a/arch/m68knommu/platform/527x/config.c +++ /dev/null @@ -1,384 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/527x/config.c - * - * Sub-architcture dependant initialization code for the Freescale - * 5270/5271 CPUs. - * - * Copyright (C) 1999-2004, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/spi/spi.h> -#include <linux/gpio.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> -#include <asm/mcfqspi.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m527x_uart_platform[] = { - { - .mapbase = MCFUART_BASE1, - .irq = MCFINT_VECBASE + MCFINT_UART0, - }, - { - .mapbase = MCFUART_BASE2, - .irq = MCFINT_VECBASE + MCFINT_UART1, - }, - { - .mapbase = MCFUART_BASE3, - .irq = MCFINT_VECBASE + MCFINT_UART2, - }, - { }, -}; - -static struct platform_device m527x_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m527x_uart_platform, -}; - -static struct resource m527x_fec0_resources[] = { - { - .start = MCFFEC_BASE0, - .end = MCFFEC_BASE0 + MCFFEC_SIZE0 - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = 64 + 23, - .end = 64 + 23, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 27, - .end = 64 + 27, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 29, - .end = 64 + 29, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct resource m527x_fec1_resources[] = { - { - .start = MCFFEC_BASE1, - .end = MCFFEC_BASE1 + MCFFEC_SIZE1 - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = 128 + 23, - .end = 128 + 23, - .flags = IORESOURCE_IRQ, - }, - { - .start = 128 + 27, - .end = 128 + 27, - .flags = IORESOURCE_IRQ, - }, - { - .start = 128 + 29, - .end = 128 + 29, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device m527x_fec[] = { - { - .name = "fec", - .id = 0, - .num_resources = ARRAY_SIZE(m527x_fec0_resources), - .resource = m527x_fec0_resources, - }, - { - .name = "fec", - .id = 1, - .num_resources = ARRAY_SIZE(m527x_fec1_resources), - .resource = m527x_fec1_resources, - }, -}; - -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) -static struct resource m527x_qspi_resources[] = { - { - .start = MCFQSPI_IOBASE, - .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = MCFINT_VECBASE + MCFINT_QSPI, - .end = MCFINT_VECBASE + MCFINT_QSPI, - .flags = IORESOURCE_IRQ, - }, -}; - -#if defined(CONFIG_M5271) -#define MCFQSPI_CS0 91 -#define MCFQSPI_CS1 92 -#define MCFQSPI_CS2 99 -#define MCFQSPI_CS3 103 -#elif defined(CONFIG_M5275) -#define MCFQSPI_CS0 59 -#define MCFQSPI_CS1 60 -#define MCFQSPI_CS2 61 -#define MCFQSPI_CS3 62 -#endif - -static int m527x_cs_setup(struct mcfqspi_cs_control *cs_control) -{ - int status; - - status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); - goto fail0; - } - status = gpio_direction_output(MCFQSPI_CS0, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); - goto fail1; - } - - status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); - goto fail1; - } - status = gpio_direction_output(MCFQSPI_CS1, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); - goto fail2; - } - - status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); - goto fail2; - } - status = gpio_direction_output(MCFQSPI_CS2, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); - goto fail3; - } - - status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS3 failed\n"); - goto fail3; - } - status = gpio_direction_output(MCFQSPI_CS3, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n"); - goto fail4; - } - - return 0; - -fail4: - gpio_free(MCFQSPI_CS3); -fail3: - gpio_free(MCFQSPI_CS2); -fail2: - gpio_free(MCFQSPI_CS1); -fail1: - gpio_free(MCFQSPI_CS0); -fail0: - return status; -} - -static void m527x_cs_teardown(struct mcfqspi_cs_control *cs_control) -{ - gpio_free(MCFQSPI_CS3); - gpio_free(MCFQSPI_CS2); - gpio_free(MCFQSPI_CS1); - gpio_free(MCFQSPI_CS0); -} - -static void m527x_cs_select(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - switch (chip_select) { - case 0: - gpio_set_value(MCFQSPI_CS0, cs_high); - break; - case 1: - gpio_set_value(MCFQSPI_CS1, cs_high); - break; - case 2: - gpio_set_value(MCFQSPI_CS2, cs_high); - break; - case 3: - gpio_set_value(MCFQSPI_CS3, cs_high); - break; - } -} - -static void m527x_cs_deselect(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - switch (chip_select) { - case 0: - gpio_set_value(MCFQSPI_CS0, !cs_high); - break; - case 1: - gpio_set_value(MCFQSPI_CS1, !cs_high); - break; - case 2: - gpio_set_value(MCFQSPI_CS2, !cs_high); - break; - case 3: - gpio_set_value(MCFQSPI_CS3, !cs_high); - break; - } -} - -static struct mcfqspi_cs_control m527x_cs_control = { - .setup = m527x_cs_setup, - .teardown = m527x_cs_teardown, - .select = m527x_cs_select, - .deselect = m527x_cs_deselect, -}; - -static struct mcfqspi_platform_data m527x_qspi_data = { - .bus_num = 0, - .num_chipselect = 4, - .cs_control = &m527x_cs_control, -}; - -static struct platform_device m527x_qspi = { - .name = "mcfqspi", - .id = 0, - .num_resources = ARRAY_SIZE(m527x_qspi_resources), - .resource = m527x_qspi_resources, - .dev.platform_data = &m527x_qspi_data, -}; - -static void __init m527x_qspi_init(void) -{ -#if defined(CONFIG_M5271) - u16 par; - - /* setup QSPS pins for QSPI with gpio CS control */ - writeb(0x1f, MCFGPIO_PAR_QSPI); - /* and CS2 & CS3 as gpio */ - par = readw(MCFGPIO_PAR_TIMER); - par &= 0x3f3f; - writew(par, MCFGPIO_PAR_TIMER); -#elif defined(CONFIG_M5275) - /* setup QSPS pins for QSPI with gpio CS control */ - writew(0x003e, MCFGPIO_PAR_QSPI); -#endif -} -#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ - -static struct platform_device *m527x_devices[] __initdata = { - &m527x_uart, - &m527x_fec[0], -#ifdef CONFIG_FEC2 - &m527x_fec[1], -#endif -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - &m527x_qspi, -#endif -}; - -/***************************************************************************/ - -static void __init m527x_uart_init_line(int line, int irq) -{ - u16 sepmask; - - if ((line < 0) || (line > 2)) - return; - - /* - * External Pin Mask Setting & Enable External Pin for Interface - */ - sepmask = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART); - if (line == 0) - sepmask |= UART0_ENABLE_MASK; - else if (line == 1) - sepmask |= UART1_ENABLE_MASK; - else if (line == 2) - sepmask |= UART2_ENABLE_MASK; - writew(sepmask, MCF_IPSBAR + MCF_GPIO_PAR_UART); -} - -static void __init m527x_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m527x_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m527x_uart_init_line(line, m527x_uart_platform[line].irq); -} - -/***************************************************************************/ - -static void __init m527x_fec_init(void) -{ - u16 par; - u8 v; - - /* Set multi-function pins to ethernet mode for fec0 */ -#if defined(CONFIG_M5271) - v = readb(MCF_IPSBAR + 0x100047); - writeb(v | 0xf0, MCF_IPSBAR + 0x100047); -#else - par = readw(MCF_IPSBAR + 0x100082); - writew(par | 0xf00, MCF_IPSBAR + 0x100082); - v = readb(MCF_IPSBAR + 0x100078); - writeb(v | 0xc0, MCF_IPSBAR + 0x100078); -#endif - -#ifdef CONFIG_FEC2 - /* Set multi-function pins to ethernet mode for fec1 */ - par = readw(MCF_IPSBAR + 0x100082); - writew(par | 0xa0, MCF_IPSBAR + 0x100082); - v = readb(MCF_IPSBAR + 0x100079); - writeb(v | 0xc0, MCF_IPSBAR + 0x100079); -#endif -} - -/***************************************************************************/ - -static void m527x_cpu_reset(void) -{ - local_irq_disable(); - __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR); -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ - mach_reset = m527x_cpu_reset; - m527x_uarts_init(); - m527x_fec_init(); -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - m527x_qspi_init(); -#endif -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - platform_add_devices(m527x_devices, ARRAY_SIZE(m527x_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/527x/gpio.c b/arch/m68knommu/platform/527x/gpio.c deleted file mode 100644 index 205da0aa0f2d..000000000000 --- a/arch/m68knommu/platform/527x/gpio.c +++ /dev/null @@ -1,609 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { -#if defined(CONFIG_M5271) - { - .gpio_chip = { - .label = "PIRQ", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .base = 1, - .ngpio = 7, - }, - .pddr = (void __iomem *) MCFEPORT_EPDDR, - .podr = (void __iomem *) MCFEPORT_EPDR, - .ppdr = (void __iomem *) MCFEPORT_EPPDR, - }, - { - .gpio_chip = { - .label = "ADDR", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 13, - .ngpio = 3, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_ADDR, - .podr = (void __iomem *) MCFGPIO_PODR_ADDR, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, - .setr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, - .clrr = (void __iomem *) MCFGPIO_PCLRR_ADDR, - }, - { - .gpio_chip = { - .label = "DATAH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 16, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_DATAH, - .podr = (void __iomem *) MCFGPIO_PODR_DATAH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAH, - }, - { - .gpio_chip = { - .label = "DATAL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 24, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_DATAL, - .podr = (void __iomem *) MCFGPIO_PODR_DATAL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_DATAL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_DATAL, - }, - { - .gpio_chip = { - .label = "BUSCTL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 32, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, - .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, - }, - { - .gpio_chip = { - .label = "BS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 40, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BS, - .podr = (void __iomem *) MCFGPIO_PODR_BS, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BS, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BS, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BS, - }, - { - .gpio_chip = { - .label = "CS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 49, - .ngpio = 7, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_CS, - .podr = (void __iomem *) MCFGPIO_PODR_CS, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, - }, - { - .gpio_chip = { - .label = "SDRAM", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 56, - .ngpio = 6, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_SDRAM, - .podr = (void __iomem *) MCFGPIO_PODR_SDRAM, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, - .setr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, - .clrr = (void __iomem *) MCFGPIO_PCLRR_SDRAM, - }, - { - .gpio_chip = { - .label = "FECI2C", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 64, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, - .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, - }, - { - .gpio_chip = { - .label = "UARTH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 72, - .ngpio = 2, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_UARTH, - .podr = (void __iomem *) MCFGPIO_PODR_UARTH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTH, - }, - { - .gpio_chip = { - .label = "UARTL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 80, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_UARTL, - .podr = (void __iomem *) MCFGPIO_PODR_UARTL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTL, - }, - { - .gpio_chip = { - .label = "QSPI", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 88, - .ngpio = 5, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, - .podr = (void __iomem *) MCFGPIO_PODR_QSPI, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, - }, - { - .gpio_chip = { - .label = "TIMER", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 96, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER, - .podr = (void __iomem *) MCFGPIO_PODR_TIMER, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, - .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, - .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER, - }, -#elif defined(CONFIG_M5275) - { - .gpio_chip = { - .label = "PIRQ", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .base = 1, - .ngpio = 7, - }, - .pddr = (void __iomem *) MCFEPORT_EPDDR, - .podr = (void __iomem *) MCFEPORT_EPDR, - .ppdr = (void __iomem *) MCFEPORT_EPPDR, - }, - { - .gpio_chip = { - .label = "BUSCTL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 8, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, - .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, - }, - { - .gpio_chip = { - .label = "ADDR", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 21, - .ngpio = 3, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_ADDR, - .podr = (void __iomem *) MCFGPIO_PODR_ADDR, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, - .setr = (void __iomem *) MCFGPIO_PPDSDR_ADDR, - .clrr = (void __iomem *) MCFGPIO_PCLRR_ADDR, - }, - { - .gpio_chip = { - .label = "CS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 25, - .ngpio = 7, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_CS, - .podr = (void __iomem *) MCFGPIO_PODR_CS, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, - }, - { - .gpio_chip = { - .label = "FEC0H", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 32, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FEC0H, - .podr = (void __iomem *) MCFGPIO_PODR_FEC0H, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FEC0H, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FEC0H, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FEC0H, - }, - { - .gpio_chip = { - .label = "FEC0L", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 40, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FEC0L, - .podr = (void __iomem *) MCFGPIO_PODR_FEC0L, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FEC0L, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FEC0L, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FEC0L, - }, - { - .gpio_chip = { - .label = "FECI2C", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 48, - .ngpio = 6, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, - .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, - }, - { - .gpio_chip = { - .label = "QSPI", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 56, - .ngpio = 7, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, - .podr = (void __iomem *) MCFGPIO_PODR_QSPI, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, - }, - { - .gpio_chip = { - .label = "SDRAM", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 64, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_SDRAM, - .podr = (void __iomem *) MCFGPIO_PODR_SDRAM, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, - .setr = (void __iomem *) MCFGPIO_PPDSDR_SDRAM, - .clrr = (void __iomem *) MCFGPIO_PCLRR_SDRAM, - }, - { - .gpio_chip = { - .label = "TIMERH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 72, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_TIMERH, - .podr = (void __iomem *) MCFGPIO_PODR_TIMERH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMERH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMERH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMERH, - }, - { - .gpio_chip = { - .label = "TIMERL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 80, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_TIMERL, - .podr = (void __iomem *) MCFGPIO_PODR_TIMERL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMERL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMERL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMERL, - }, - { - .gpio_chip = { - .label = "UARTL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 88, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_UARTL, - .podr = (void __iomem *) MCFGPIO_PODR_UARTL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTL, - }, - { - .gpio_chip = { - .label = "FEC1H", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 96, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FEC1H, - .podr = (void __iomem *) MCFGPIO_PODR_FEC1H, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FEC1H, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FEC1H, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FEC1H, - }, - { - .gpio_chip = { - .label = "FEC1L", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 104, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FEC1L, - .podr = (void __iomem *) MCFGPIO_PODR_FEC1L, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FEC1L, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FEC1L, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FEC1L, - }, - { - .gpio_chip = { - .label = "BS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 114, - .ngpio = 2, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BS, - .podr = (void __iomem *) MCFGPIO_PODR_BS, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BS, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BS, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BS, - }, - { - .gpio_chip = { - .label = "IRQ", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 121, - .ngpio = 7, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_IRQ, - .podr = (void __iomem *) MCFGPIO_PODR_IRQ, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_IRQ, - .setr = (void __iomem *) MCFGPIO_PPDSDR_IRQ, - .clrr = (void __iomem *) MCFGPIO_PCLRR_IRQ, - }, - { - .gpio_chip = { - .label = "USBH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 128, - .ngpio = 1, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_USBH, - .podr = (void __iomem *) MCFGPIO_PODR_USBH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_USBH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_USBH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_USBH, - }, - { - .gpio_chip = { - .label = "USBL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 136, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_USBL, - .podr = (void __iomem *) MCFGPIO_PODR_USBL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_USBL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_USBL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_USBL, - }, - { - .gpio_chip = { - .label = "UARTH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 144, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_UARTH, - .podr = (void __iomem *) MCFGPIO_PODR_UARTH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_UARTH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_UARTH, - }, -#endif -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/528x/Makefile b/arch/m68knommu/platform/528x/Makefile deleted file mode 100644 index 6ac4b57370ea..000000000000 --- a/arch/m68knommu/platform/528x/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# -# Makefile for the linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o gpio.o - diff --git a/arch/m68knommu/platform/528x/config.c b/arch/m68knommu/platform/528x/config.c deleted file mode 100644 index ac39fc661219..000000000000 --- a/arch/m68knommu/platform/528x/config.c +++ /dev/null @@ -1,320 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/528x/config.c - * - * Sub-architcture dependant initialization code for the Freescale - * 5280, 5281 and 5282 CPUs. - * - * Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/spi/spi.h> -#include <linux/gpio.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> -#include <asm/mcfqspi.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m528x_uart_platform[] = { - { - .mapbase = MCFUART_BASE1, - .irq = MCFINT_VECBASE + MCFINT_UART0, - }, - { - .mapbase = MCFUART_BASE2, - .irq = MCFINT_VECBASE + MCFINT_UART0 + 1, - }, - { - .mapbase = MCFUART_BASE3, - .irq = MCFINT_VECBASE + MCFINT_UART0 + 2, - }, - { }, -}; - -static struct platform_device m528x_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m528x_uart_platform, -}; - -static struct resource m528x_fec_resources[] = { - { - .start = MCFFEC_BASE, - .end = MCFFEC_BASE + MCFFEC_SIZE - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = 64 + 23, - .end = 64 + 23, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 27, - .end = 64 + 27, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 29, - .end = 64 + 29, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device m528x_fec = { - .name = "fec", - .id = 0, - .num_resources = ARRAY_SIZE(m528x_fec_resources), - .resource = m528x_fec_resources, -}; - -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) -static struct resource m528x_qspi_resources[] = { - { - .start = MCFQSPI_IOBASE, - .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = MCFINT_VECBASE + MCFINT_QSPI, - .end = MCFINT_VECBASE + MCFINT_QSPI, - .flags = IORESOURCE_IRQ, - }, -}; - -#define MCFQSPI_CS0 147 -#define MCFQSPI_CS1 148 -#define MCFQSPI_CS2 149 -#define MCFQSPI_CS3 150 - -static int m528x_cs_setup(struct mcfqspi_cs_control *cs_control) -{ - int status; - - status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); - goto fail0; - } - status = gpio_direction_output(MCFQSPI_CS0, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); - goto fail1; - } - - status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); - goto fail1; - } - status = gpio_direction_output(MCFQSPI_CS1, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); - goto fail2; - } - - status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); - goto fail2; - } - status = gpio_direction_output(MCFQSPI_CS2, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); - goto fail3; - } - - status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS3 failed\n"); - goto fail3; - } - status = gpio_direction_output(MCFQSPI_CS3, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n"); - goto fail4; - } - - return 0; - -fail4: - gpio_free(MCFQSPI_CS3); -fail3: - gpio_free(MCFQSPI_CS2); -fail2: - gpio_free(MCFQSPI_CS1); -fail1: - gpio_free(MCFQSPI_CS0); -fail0: - return status; -} - -static void m528x_cs_teardown(struct mcfqspi_cs_control *cs_control) -{ - gpio_free(MCFQSPI_CS3); - gpio_free(MCFQSPI_CS2); - gpio_free(MCFQSPI_CS1); - gpio_free(MCFQSPI_CS0); -} - -static void m528x_cs_select(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - gpio_set_value(MCFQSPI_CS0 + chip_select, cs_high); -} - -static void m528x_cs_deselect(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - gpio_set_value(MCFQSPI_CS0 + chip_select, !cs_high); -} - -static struct mcfqspi_cs_control m528x_cs_control = { - .setup = m528x_cs_setup, - .teardown = m528x_cs_teardown, - .select = m528x_cs_select, - .deselect = m528x_cs_deselect, -}; - -static struct mcfqspi_platform_data m528x_qspi_data = { - .bus_num = 0, - .num_chipselect = 4, - .cs_control = &m528x_cs_control, -}; - -static struct platform_device m528x_qspi = { - .name = "mcfqspi", - .id = 0, - .num_resources = ARRAY_SIZE(m528x_qspi_resources), - .resource = m528x_qspi_resources, - .dev.platform_data = &m528x_qspi_data, -}; - -static void __init m528x_qspi_init(void) -{ - /* setup Port QS for QSPI with gpio CS control */ - __raw_writeb(0x07, MCFGPIO_PQSPAR); -} -#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ - -static struct platform_device *m528x_devices[] __initdata = { - &m528x_uart, - &m528x_fec, -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - &m528x_qspi, -#endif -}; - -/***************************************************************************/ - -static void __init m528x_uart_init_line(int line, int irq) -{ - u8 port; - - if ((line < 0) || (line > 2)) - return; - - /* make sure PUAPAR is set for UART0 and UART1 */ - if (line < 2) { - port = readb(MCF5282_GPIO_PUAPAR); - port |= (0x03 << (line * 2)); - writeb(port, MCF5282_GPIO_PUAPAR); - } -} - -static void __init m528x_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m528x_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m528x_uart_init_line(line, m528x_uart_platform[line].irq); -} - -/***************************************************************************/ - -static void __init m528x_fec_init(void) -{ - u16 v16; - - /* Set multi-function pins to ethernet mode for fec0 */ - v16 = readw(MCF_IPSBAR + 0x100056); - writew(v16 | 0xf00, MCF_IPSBAR + 0x100056); - writeb(0xc0, MCF_IPSBAR + 0x100058); -} - -/***************************************************************************/ - -static void m528x_cpu_reset(void) -{ - local_irq_disable(); - __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR); -} - -/***************************************************************************/ - -#ifdef CONFIG_WILDFIRE -void wildfire_halt(void) -{ - writeb(0, 0x30000007); - writeb(0x2, 0x30000007); -} -#endif - -#ifdef CONFIG_WILDFIREMOD -void wildfiremod_halt(void) -{ - printk(KERN_INFO "WildFireMod hibernating...\n"); - - /* Set portE.5 to Digital IO */ - MCF5282_GPIO_PEPAR &= ~(1 << (5 * 2)); - - /* Make portE.5 an output */ - MCF5282_GPIO_DDRE |= (1 << 5); - - /* Now toggle portE.5 from low to high */ - MCF5282_GPIO_PORTE &= ~(1 << 5); - MCF5282_GPIO_PORTE |= (1 << 5); - - printk(KERN_EMERG "Failed to hibernate. Halting!\n"); -} -#endif - -void __init config_BSP(char *commandp, int size) -{ -#ifdef CONFIG_WILDFIRE - mach_halt = wildfire_halt; -#endif -#ifdef CONFIG_WILDFIREMOD - mach_halt = wildfiremod_halt; -#endif -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - mach_reset = m528x_cpu_reset; - m528x_uarts_init(); - m528x_fec_init(); -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - m528x_qspi_init(); -#endif - platform_add_devices(m528x_devices, ARRAY_SIZE(m528x_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/528x/gpio.c b/arch/m68knommu/platform/528x/gpio.c deleted file mode 100644 index 526db665d87e..000000000000 --- a/arch/m68knommu/platform/528x/gpio.c +++ /dev/null @@ -1,438 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "NQ", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .base = 1, - .ngpio = 7, - }, - .pddr = (void __iomem *)MCFEPORT_EPDDR, - .podr = (void __iomem *)MCFEPORT_EPDR, - .ppdr = (void __iomem *)MCFEPORT_EPPDR, - }, - { - .gpio_chip = { - .label = "TA", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 8, - .ngpio = 4, - }, - .pddr = (void __iomem *)MCFGPTA_GPTDDR, - .podr = (void __iomem *)MCFGPTA_GPTPORT, - .ppdr = (void __iomem *)MCFGPTB_GPTPORT, - }, - { - .gpio_chip = { - .label = "TB", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 16, - .ngpio = 4, - }, - .pddr = (void __iomem *)MCFGPTB_GPTDDR, - .podr = (void __iomem *)MCFGPTB_GPTPORT, - .ppdr = (void __iomem *)MCFGPTB_GPTPORT, - }, - { - .gpio_chip = { - .label = "QA", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 24, - .ngpio = 4, - }, - .pddr = (void __iomem *)MCFQADC_DDRQA, - .podr = (void __iomem *)MCFQADC_PORTQA, - .ppdr = (void __iomem *)MCFQADC_PORTQA, - }, - { - .gpio_chip = { - .label = "QB", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 32, - .ngpio = 4, - }, - .pddr = (void __iomem *)MCFQADC_DDRQB, - .podr = (void __iomem *)MCFQADC_PORTQB, - .ppdr = (void __iomem *)MCFQADC_PORTQB, - }, - { - .gpio_chip = { - .label = "A", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 40, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRA, - .podr = (void __iomem *)MCFGPIO_PORTA, - .ppdr = (void __iomem *)MCFGPIO_PORTAP, - .setr = (void __iomem *)MCFGPIO_SETA, - .clrr = (void __iomem *)MCFGPIO_CLRA, - }, - { - .gpio_chip = { - .label = "B", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 48, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRB, - .podr = (void __iomem *)MCFGPIO_PORTB, - .ppdr = (void __iomem *)MCFGPIO_PORTBP, - .setr = (void __iomem *)MCFGPIO_SETB, - .clrr = (void __iomem *)MCFGPIO_CLRB, - }, - { - .gpio_chip = { - .label = "C", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 56, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRC, - .podr = (void __iomem *)MCFGPIO_PORTC, - .ppdr = (void __iomem *)MCFGPIO_PORTCP, - .setr = (void __iomem *)MCFGPIO_SETC, - .clrr = (void __iomem *)MCFGPIO_CLRC, - }, - { - .gpio_chip = { - .label = "D", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 64, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRD, - .podr = (void __iomem *)MCFGPIO_PORTD, - .ppdr = (void __iomem *)MCFGPIO_PORTDP, - .setr = (void __iomem *)MCFGPIO_SETD, - .clrr = (void __iomem *)MCFGPIO_CLRD, - }, - { - .gpio_chip = { - .label = "E", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 72, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRE, - .podr = (void __iomem *)MCFGPIO_PORTE, - .ppdr = (void __iomem *)MCFGPIO_PORTEP, - .setr = (void __iomem *)MCFGPIO_SETE, - .clrr = (void __iomem *)MCFGPIO_CLRE, - }, - { - .gpio_chip = { - .label = "F", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 80, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRF, - .podr = (void __iomem *)MCFGPIO_PORTF, - .ppdr = (void __iomem *)MCFGPIO_PORTFP, - .setr = (void __iomem *)MCFGPIO_SETF, - .clrr = (void __iomem *)MCFGPIO_CLRF, - }, - { - .gpio_chip = { - .label = "G", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 88, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRG, - .podr = (void __iomem *)MCFGPIO_PORTG, - .ppdr = (void __iomem *)MCFGPIO_PORTGP, - .setr = (void __iomem *)MCFGPIO_SETG, - .clrr = (void __iomem *)MCFGPIO_CLRG, - }, - { - .gpio_chip = { - .label = "H", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 96, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRH, - .podr = (void __iomem *)MCFGPIO_PORTH, - .ppdr = (void __iomem *)MCFGPIO_PORTHP, - .setr = (void __iomem *)MCFGPIO_SETH, - .clrr = (void __iomem *)MCFGPIO_CLRH, - }, - { - .gpio_chip = { - .label = "J", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 104, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRJ, - .podr = (void __iomem *)MCFGPIO_PORTJ, - .ppdr = (void __iomem *)MCFGPIO_PORTJP, - .setr = (void __iomem *)MCFGPIO_SETJ, - .clrr = (void __iomem *)MCFGPIO_CLRJ, - }, - { - .gpio_chip = { - .label = "DD", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 112, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDRDD, - .podr = (void __iomem *)MCFGPIO_PORTDD, - .ppdr = (void __iomem *)MCFGPIO_PORTDDP, - .setr = (void __iomem *)MCFGPIO_SETDD, - .clrr = (void __iomem *)MCFGPIO_CLRDD, - }, - { - .gpio_chip = { - .label = "EH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 120, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDREH, - .podr = (void __iomem *)MCFGPIO_PORTEH, - .ppdr = (void __iomem *)MCFGPIO_PORTEHP, - .setr = (void __iomem *)MCFGPIO_SETEH, - .clrr = (void __iomem *)MCFGPIO_CLREH, - }, - { - .gpio_chip = { - .label = "EL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 128, - .ngpio = 8, - }, - .pddr = (void __iomem *)MCFGPIO_DDREL, - .podr = (void __iomem *)MCFGPIO_PORTEL, - .ppdr = (void __iomem *)MCFGPIO_PORTELP, - .setr = (void __iomem *)MCFGPIO_SETEL, - .clrr = (void __iomem *)MCFGPIO_CLREL, - }, - { - .gpio_chip = { - .label = "AS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 136, - .ngpio = 6, - }, - .pddr = (void __iomem *)MCFGPIO_DDRAS, - .podr = (void __iomem *)MCFGPIO_PORTAS, - .ppdr = (void __iomem *)MCFGPIO_PORTASP, - .setr = (void __iomem *)MCFGPIO_SETAS, - .clrr = (void __iomem *)MCFGPIO_CLRAS, - }, - { - .gpio_chip = { - .label = "QS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 144, - .ngpio = 7, - }, - .pddr = (void __iomem *)MCFGPIO_DDRQS, - .podr = (void __iomem *)MCFGPIO_PORTQS, - .ppdr = (void __iomem *)MCFGPIO_PORTQSP, - .setr = (void __iomem *)MCFGPIO_SETQS, - .clrr = (void __iomem *)MCFGPIO_CLRQS, - }, - { - .gpio_chip = { - .label = "SD", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 152, - .ngpio = 6, - }, - .pddr = (void __iomem *)MCFGPIO_DDRSD, - .podr = (void __iomem *)MCFGPIO_PORTSD, - .ppdr = (void __iomem *)MCFGPIO_PORTSDP, - .setr = (void __iomem *)MCFGPIO_SETSD, - .clrr = (void __iomem *)MCFGPIO_CLRSD, - }, - { - .gpio_chip = { - .label = "TC", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 160, - .ngpio = 4, - }, - .pddr = (void __iomem *)MCFGPIO_DDRTC, - .podr = (void __iomem *)MCFGPIO_PORTTC, - .ppdr = (void __iomem *)MCFGPIO_PORTTCP, - .setr = (void __iomem *)MCFGPIO_SETTC, - .clrr = (void __iomem *)MCFGPIO_CLRTC, - }, - { - .gpio_chip = { - .label = "TD", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 168, - .ngpio = 4, - }, - .pddr = (void __iomem *)MCFGPIO_DDRTD, - .podr = (void __iomem *)MCFGPIO_PORTTD, - .ppdr = (void __iomem *)MCFGPIO_PORTTDP, - .setr = (void __iomem *)MCFGPIO_SETTD, - .clrr = (void __iomem *)MCFGPIO_CLRTD, - }, - { - .gpio_chip = { - .label = "UA", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 176, - .ngpio = 4, - }, - .pddr = (void __iomem *)MCFGPIO_DDRUA, - .podr = (void __iomem *)MCFGPIO_PORTUA, - .ppdr = (void __iomem *)MCFGPIO_PORTUAP, - .setr = (void __iomem *)MCFGPIO_SETUA, - .clrr = (void __iomem *)MCFGPIO_CLRUA, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/5307/Makefile b/arch/m68knommu/platform/5307/Makefile deleted file mode 100644 index d4293b791f2e..000000000000 --- a/arch/m68knommu/platform/5307/Makefile +++ /dev/null @@ -1,20 +0,0 @@ -# -# Makefile for the m68knommu kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y += config.o gpio.o -obj-$(CONFIG_NETtel) += nettel.o -obj-$(CONFIG_CLEOPATRA) += nettel.o - diff --git a/arch/m68knommu/platform/5307/config.c b/arch/m68knommu/platform/5307/config.c deleted file mode 100644 index 00900ac06a9c..000000000000 --- a/arch/m68knommu/platform/5307/config.c +++ /dev/null @@ -1,147 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/5307/config.c - * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2000, Lineo (www.lineo.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> -#include <asm/mcfwdebug.h> - -/***************************************************************************/ - -/* - * Some platforms need software versions of the GPIO data registers. - */ -unsigned short ppdata; -unsigned char ledbank = 0xff; - -/***************************************************************************/ - -static struct mcf_platform_uart m5307_uart_platform[] = { - { - .mapbase = MCF_MBAR + MCFUART_BASE1, - .irq = 73, - }, - { - .mapbase = MCF_MBAR + MCFUART_BASE2, - .irq = 74, - }, - { }, -}; - -static struct platform_device m5307_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m5307_uart_platform, -}; - -static struct platform_device *m5307_devices[] __initdata = { - &m5307_uart, -}; - -/***************************************************************************/ - -static void __init m5307_uart_init_line(int line, int irq) -{ - if (line == 0) { - writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); - writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART0); - } else if (line == 1) { - writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); - writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART1); - } -} - -static void __init m5307_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m5307_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m5307_uart_init_line(line, m5307_uart_platform[line].irq); -} - -/***************************************************************************/ - -static void __init m5307_timers_init(void) -{ - /* Timer1 is always used as system timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER1ICR); - mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); - -#ifdef CONFIG_HIGHPROFILE - /* Timer2 is to be used as a high speed profile timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER2ICR); - mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); -#endif -} - -/***************************************************************************/ - -void m5307_cpu_reset(void) -{ - local_irq_disable(); - /* Set watchdog to soft reset, and enabled */ - __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); - for (;;) - /* wait for watchdog to timeout */; -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ -#if defined(CONFIG_NETtel) || \ - defined(CONFIG_SECUREEDGEMP3) || defined(CONFIG_CLEOPATRA) - /* Copy command line from FLASH to local buffer... */ - memcpy(commandp, (char *) 0xf0004000, size); - commandp[size-1] = 0; -#endif - - mach_reset = m5307_cpu_reset; - m5307_timers_init(); - m5307_uarts_init(); - - /* Only support the external interrupts on their primary level */ - mcf_mapirq2imr(25, MCFINTC_EINT1); - mcf_mapirq2imr(27, MCFINTC_EINT3); - mcf_mapirq2imr(29, MCFINTC_EINT5); - mcf_mapirq2imr(31, MCFINTC_EINT7); - -#ifdef CONFIG_BDM_DISABLE - /* - * Disable the BDM clocking. This also turns off most of the rest of - * the BDM device. This is good for EMC reasons. This option is not - * incompatible with the memory protection option. - */ - wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); -#endif -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - platform_add_devices(m5307_devices, ARRAY_SIZE(m5307_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/5307/gpio.c b/arch/m68knommu/platform/5307/gpio.c deleted file mode 100644 index 5850612b4a38..000000000000 --- a/arch/m68knommu/platform/5307/gpio.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "PP", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .ngpio = 16, - }, - .pddr = (void __iomem *) MCFSIM_PADDR, - .podr = (void __iomem *) MCFSIM_PADAT, - .ppdr = (void __iomem *) MCFSIM_PADAT, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/5307/nettel.c b/arch/m68knommu/platform/5307/nettel.c deleted file mode 100644 index e925ea4602f8..000000000000 --- a/arch/m68knommu/platform/5307/nettel.c +++ /dev/null @@ -1,153 +0,0 @@ -/***************************************************************************/ - -/* - * nettel.c -- startup code support for the NETtel boards - * - * Copyright (C) 2009, Greg Ungerer (gerg@snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/platform_device.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/nettel.h> - -/***************************************************************************/ - -/* - * Define the IO and interrupt resources of the 2 SMC9196 interfaces. - */ -#define NETTEL_SMC0_ADDR 0x30600300 -#define NETTEL_SMC0_IRQ 29 - -#define NETTEL_SMC1_ADDR 0x30600000 -#define NETTEL_SMC1_IRQ 27 - -/* - * We need some access into the SMC9196 registers. Define those registers - * we will need here (including the smc91x.h doesn't seem to give us these - * in a simple form). - */ -#define SMC91xx_BANKSELECT 14 -#define SMC91xx_BASEADDR 2 -#define SMC91xx_BASEMAC 4 - -/***************************************************************************/ - -static struct resource nettel_smc91x_0_resources[] = { - { - .start = NETTEL_SMC0_ADDR, - .end = NETTEL_SMC0_ADDR + 0x20, - .flags = IORESOURCE_MEM, - }, - { - .start = NETTEL_SMC0_IRQ, - .end = NETTEL_SMC0_IRQ, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct resource nettel_smc91x_1_resources[] = { - { - .start = NETTEL_SMC1_ADDR, - .end = NETTEL_SMC1_ADDR + 0x20, - .flags = IORESOURCE_MEM, - }, - { - .start = NETTEL_SMC1_IRQ, - .end = NETTEL_SMC1_IRQ, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device nettel_smc91x[] = { - { - .name = "smc91x", - .id = 0, - .num_resources = ARRAY_SIZE(nettel_smc91x_0_resources), - .resource = nettel_smc91x_0_resources, - }, - { - .name = "smc91x", - .id = 1, - .num_resources = ARRAY_SIZE(nettel_smc91x_1_resources), - .resource = nettel_smc91x_1_resources, - }, -}; - -static struct platform_device *nettel_devices[] __initdata = { - &nettel_smc91x[0], - &nettel_smc91x[1], -}; - -/***************************************************************************/ - -static u8 nettel_macdefault[] __initdata = { - 0x00, 0xd0, 0xcf, 0x00, 0x00, 0x01, -}; - -/* - * Set flash contained MAC address into SMC9196 core. Make sure the flash - * MAC address is sane, and not an empty flash. If no good use the Moreton - * Bay default MAC address instead. - */ - -static void __init nettel_smc91x_setmac(unsigned int ioaddr, unsigned int flashaddr) -{ - u16 *macp; - - macp = (u16 *) flashaddr; - if ((macp[0] == 0xffff) && (macp[1] == 0xffff) && (macp[2] == 0xffff)) - macp = (u16 *) &nettel_macdefault[0]; - - writew(1, NETTEL_SMC0_ADDR + SMC91xx_BANKSELECT); - writew(macp[0], ioaddr + SMC91xx_BASEMAC); - writew(macp[1], ioaddr + SMC91xx_BASEMAC + 2); - writew(macp[2], ioaddr + SMC91xx_BASEMAC + 4); -} - -/***************************************************************************/ - -/* - * Re-map the address space of at least one of the SMC ethernet - * parts. Both parts power up decoding the same address, so we - * need to move one of them first, before doing anything else. - */ - -static void __init nettel_smc91x_init(void) -{ - writew(0x00ec, MCF_MBAR + MCFSIM_PADDR); - mcf_setppdata(0, 0x0080); - writew(1, NETTEL_SMC0_ADDR + SMC91xx_BANKSELECT); - writew(0x0067, NETTEL_SMC0_ADDR + SMC91xx_BASEADDR); - mcf_setppdata(0x0080, 0); - - /* Set correct chip select timing for SMC9196 accesses */ - writew(0x1180, MCF_MBAR + MCFSIM_CSCR3); - - /* Set the SMC interrupts to be auto-vectored */ - mcf_autovector(NETTEL_SMC0_IRQ); - mcf_autovector(NETTEL_SMC1_IRQ); - - /* Set MAC addresses from flash for both interfaces */ - nettel_smc91x_setmac(NETTEL_SMC0_ADDR, 0xf0006000); - nettel_smc91x_setmac(NETTEL_SMC1_ADDR, 0xf0006006); -} - -/***************************************************************************/ - -static int __init init_nettel(void) -{ - nettel_smc91x_init(); - platform_add_devices(nettel_devices, ARRAY_SIZE(nettel_devices)); - return 0; -} - -arch_initcall(init_nettel); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/532x/Makefile b/arch/m68knommu/platform/532x/Makefile deleted file mode 100644 index ce01669399c6..000000000000 --- a/arch/m68knommu/platform/532x/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# -# Makefile for the m68knommu linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -#obj-y := config.o usb-mcf532x.o spi-mcf532x.o -obj-y := config.o gpio.o diff --git a/arch/m68knommu/platform/532x/config.c b/arch/m68knommu/platform/532x/config.c deleted file mode 100644 index ca51323f957b..000000000000 --- a/arch/m68knommu/platform/532x/config.c +++ /dev/null @@ -1,648 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/532x/config.c - * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2000, Lineo (www.lineo.com) - * Yaroslav Vinogradov yaroslav.vinogradov@freescale.com - * Copyright Freescale Semiconductor, Inc 2006 - * Copyright (c) 2006, emlix, Sebastian Hess <sh@emlix.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/spi/spi.h> -#include <linux/gpio.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> -#include <asm/mcfdma.h> -#include <asm/mcfwdebug.h> -#include <asm/mcfqspi.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m532x_uart_platform[] = { - { - .mapbase = MCFUART_BASE1, - .irq = MCFINT_VECBASE + MCFINT_UART0, - }, - { - .mapbase = MCFUART_BASE2, - .irq = MCFINT_VECBASE + MCFINT_UART1, - }, - { - .mapbase = MCFUART_BASE3, - .irq = MCFINT_VECBASE + MCFINT_UART2, - }, - { }, -}; - -static struct platform_device m532x_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m532x_uart_platform, -}; - -static struct resource m532x_fec_resources[] = { - { - .start = 0xfc030000, - .end = 0xfc0307ff, - .flags = IORESOURCE_MEM, - }, - { - .start = 64 + 36, - .end = 64 + 36, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 40, - .end = 64 + 40, - .flags = IORESOURCE_IRQ, - }, - { - .start = 64 + 42, - .end = 64 + 42, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device m532x_fec = { - .name = "fec", - .id = 0, - .num_resources = ARRAY_SIZE(m532x_fec_resources), - .resource = m532x_fec_resources, -}; - -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) -static struct resource m532x_qspi_resources[] = { - { - .start = MCFQSPI_IOBASE, - .end = MCFQSPI_IOBASE + MCFQSPI_IOSIZE - 1, - .flags = IORESOURCE_MEM, - }, - { - .start = MCFINT_VECBASE + MCFINT_QSPI, - .end = MCFINT_VECBASE + MCFINT_QSPI, - .flags = IORESOURCE_IRQ, - }, -}; - -#define MCFQSPI_CS0 84 -#define MCFQSPI_CS1 85 -#define MCFQSPI_CS2 86 - -static int m532x_cs_setup(struct mcfqspi_cs_control *cs_control) -{ - int status; - - status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); - goto fail0; - } - status = gpio_direction_output(MCFQSPI_CS0, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); - goto fail1; - } - - status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); - goto fail1; - } - status = gpio_direction_output(MCFQSPI_CS1, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); - goto fail2; - } - - status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); - if (status) { - pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); - goto fail2; - } - status = gpio_direction_output(MCFQSPI_CS2, 1); - if (status) { - pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); - goto fail3; - } - - return 0; - -fail3: - gpio_free(MCFQSPI_CS2); -fail2: - gpio_free(MCFQSPI_CS1); -fail1: - gpio_free(MCFQSPI_CS0); -fail0: - return status; -} - -static void m532x_cs_teardown(struct mcfqspi_cs_control *cs_control) -{ - gpio_free(MCFQSPI_CS2); - gpio_free(MCFQSPI_CS1); - gpio_free(MCFQSPI_CS0); -} - -static void m532x_cs_select(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - gpio_set_value(MCFQSPI_CS0 + chip_select, cs_high); -} - -static void m532x_cs_deselect(struct mcfqspi_cs_control *cs_control, - u8 chip_select, bool cs_high) -{ - gpio_set_value(MCFQSPI_CS0 + chip_select, !cs_high); -} - -static struct mcfqspi_cs_control m532x_cs_control = { - .setup = m532x_cs_setup, - .teardown = m532x_cs_teardown, - .select = m532x_cs_select, - .deselect = m532x_cs_deselect, -}; - -static struct mcfqspi_platform_data m532x_qspi_data = { - .bus_num = 0, - .num_chipselect = 3, - .cs_control = &m532x_cs_control, -}; - -static struct platform_device m532x_qspi = { - .name = "mcfqspi", - .id = 0, - .num_resources = ARRAY_SIZE(m532x_qspi_resources), - .resource = m532x_qspi_resources, - .dev.platform_data = &m532x_qspi_data, -}; - -static void __init m532x_qspi_init(void) -{ - /* setup QSPS pins for QSPI with gpio CS control */ - writew(0x01f0, MCF_GPIO_PAR_QSPI); -} -#endif /* defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) */ - - -static struct platform_device *m532x_devices[] __initdata = { - &m532x_uart, - &m532x_fec, -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - &m532x_qspi, -#endif -}; - -/***************************************************************************/ - -static void __init m532x_uart_init_line(int line, int irq) -{ - if (line == 0) { - /* GPIO initialization */ - MCF_GPIO_PAR_UART |= 0x000F; - } else if (line == 1) { - /* GPIO initialization */ - MCF_GPIO_PAR_UART |= 0x0FF0; - } -} - -static void __init m532x_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m532x_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m532x_uart_init_line(line, m532x_uart_platform[line].irq); -} -/***************************************************************************/ - -static void __init m532x_fec_init(void) -{ - /* Set multi-function pins to ethernet mode for fec0 */ - MCF_GPIO_PAR_FECI2C |= (MCF_GPIO_PAR_FECI2C_PAR_MDC_EMDC | - MCF_GPIO_PAR_FECI2C_PAR_MDIO_EMDIO); - MCF_GPIO_PAR_FEC = (MCF_GPIO_PAR_FEC_PAR_FEC_7W_FEC | - MCF_GPIO_PAR_FEC_PAR_FEC_MII_FEC); -} - -/***************************************************************************/ - -static void m532x_cpu_reset(void) -{ - local_irq_disable(); - __raw_writeb(MCF_RCR_SWRESET, MCF_RCR); -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ -#if !defined(CONFIG_BOOTPARAM) - /* Copy command line from FLASH to local buffer... */ - memcpy(commandp, (char *) 0x4000, 4); - if(strncmp(commandp, "kcl ", 4) == 0){ - memcpy(commandp, (char *) 0x4004, size); - commandp[size-1] = 0; - } else { - memset(commandp, 0, size); - } -#endif - -#ifdef CONFIG_BDM_DISABLE - /* - * Disable the BDM clocking. This also turns off most of the rest of - * the BDM device. This is good for EMC reasons. This option is not - * incompatible with the memory protection option. - */ - wdebug(MCFDEBUG_CSR, MCFDEBUG_CSR_PSTCLK); -#endif -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - m532x_uarts_init(); - m532x_fec_init(); -#if defined(CONFIG_SPI_COLDFIRE_QSPI) || defined(CONFIG_SPI_COLDFIRE_QSPI_MODULE) - m532x_qspi_init(); -#endif - platform_add_devices(m532x_devices, ARRAY_SIZE(m532x_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ -/* Board initialization */ -/***************************************************************************/ -/* - * PLL min/max specifications - */ -#define MAX_FVCO 500000 /* KHz */ -#define MAX_FSYS 80000 /* KHz */ -#define MIN_FSYS 58333 /* KHz */ -#define FREF 16000 /* KHz */ - - -#define MAX_MFD 135 /* Multiplier */ -#define MIN_MFD 88 /* Multiplier */ -#define BUSDIV 6 /* Divider */ - -/* - * Low Power Divider specifications - */ -#define MIN_LPD (1 << 0) /* Divider (not encoded) */ -#define MAX_LPD (1 << 15) /* Divider (not encoded) */ -#define DEFAULT_LPD (1 << 1) /* Divider (not encoded) */ - -#define SYS_CLK_KHZ 80000 -#define SYSTEM_PERIOD 12.5 -/* - * SDRAM Timing Parameters - */ -#define SDRAM_BL 8 /* # of beats in a burst */ -#define SDRAM_TWR 2 /* in clocks */ -#define SDRAM_CASL 2.5 /* CASL in clocks */ -#define SDRAM_TRCD 2 /* in clocks */ -#define SDRAM_TRP 2 /* in clocks */ -#define SDRAM_TRFC 7 /* in clocks */ -#define SDRAM_TREFI 7800 /* in ns */ - -#define EXT_SRAM_ADDRESS (0xC0000000) -#define FLASH_ADDRESS (0x00000000) -#define SDRAM_ADDRESS (0x40000000) - -#define NAND_FLASH_ADDRESS (0xD0000000) - -int sys_clk_khz = 0; -int sys_clk_mhz = 0; - -void wtm_init(void); -void scm_init(void); -void gpio_init(void); -void fbcs_init(void); -void sdramc_init(void); -int clock_pll (int fsys, int flags); -int clock_limp (int); -int clock_exit_limp (void); -int get_sys_clock (void); - -asmlinkage void __init sysinit(void) -{ - sys_clk_khz = clock_pll(0, 0); - sys_clk_mhz = sys_clk_khz/1000; - - wtm_init(); - scm_init(); - gpio_init(); - fbcs_init(); - sdramc_init(); -} - -void wtm_init(void) -{ - /* Disable watchdog timer */ - MCF_WTM_WCR = 0; -} - -#define MCF_SCM_BCR_GBW (0x00000100) -#define MCF_SCM_BCR_GBR (0x00000200) - -void scm_init(void) -{ - /* All masters are trusted */ - MCF_SCM_MPR = 0x77777777; - - /* Allow supervisor/user, read/write, and trusted/untrusted - access to all slaves */ - MCF_SCM_PACRA = 0; - MCF_SCM_PACRB = 0; - MCF_SCM_PACRC = 0; - MCF_SCM_PACRD = 0; - MCF_SCM_PACRE = 0; - MCF_SCM_PACRF = 0; - - /* Enable bursts */ - MCF_SCM_BCR = (MCF_SCM_BCR_GBR | MCF_SCM_BCR_GBW); -} - - -void fbcs_init(void) -{ - MCF_GPIO_PAR_CS = 0x0000003E; - - /* Latch chip select */ - MCF_FBCS1_CSAR = 0x10080000; - - MCF_FBCS1_CSCR = 0x002A3780; - MCF_FBCS1_CSMR = (MCF_FBCS_CSMR_BAM_2M | MCF_FBCS_CSMR_V); - - /* Initialize latch to drive signals to inactive states */ - *((u16 *)(0x10080000)) = 0xFFFF; - - /* External SRAM */ - MCF_FBCS1_CSAR = EXT_SRAM_ADDRESS; - MCF_FBCS1_CSCR = (MCF_FBCS_CSCR_PS_16 - | MCF_FBCS_CSCR_AA - | MCF_FBCS_CSCR_SBM - | MCF_FBCS_CSCR_WS(1)); - MCF_FBCS1_CSMR = (MCF_FBCS_CSMR_BAM_512K - | MCF_FBCS_CSMR_V); - - /* Boot Flash connected to FBCS0 */ - MCF_FBCS0_CSAR = FLASH_ADDRESS; - MCF_FBCS0_CSCR = (MCF_FBCS_CSCR_PS_16 - | MCF_FBCS_CSCR_BEM - | MCF_FBCS_CSCR_AA - | MCF_FBCS_CSCR_SBM - | MCF_FBCS_CSCR_WS(7)); - MCF_FBCS0_CSMR = (MCF_FBCS_CSMR_BAM_32M - | MCF_FBCS_CSMR_V); -} - -void sdramc_init(void) -{ - /* - * Check to see if the SDRAM has already been initialized - * by a run control tool - */ - if (!(MCF_SDRAMC_SDCR & MCF_SDRAMC_SDCR_REF)) { - /* SDRAM chip select initialization */ - - /* Initialize SDRAM chip select */ - MCF_SDRAMC_SDCS0 = (0 - | MCF_SDRAMC_SDCS_BA(SDRAM_ADDRESS) - | MCF_SDRAMC_SDCS_CSSZ(MCF_SDRAMC_SDCS_CSSZ_32MBYTE)); - - /* - * Basic configuration and initialization - */ - MCF_SDRAMC_SDCFG1 = (0 - | MCF_SDRAMC_SDCFG1_SRD2RW((int)((SDRAM_CASL + 2) + 0.5 )) - | MCF_SDRAMC_SDCFG1_SWT2RD(SDRAM_TWR + 1) - | MCF_SDRAMC_SDCFG1_RDLAT((int)((SDRAM_CASL*2) + 2)) - | MCF_SDRAMC_SDCFG1_ACT2RW((int)((SDRAM_TRCD ) + 0.5)) - | MCF_SDRAMC_SDCFG1_PRE2ACT((int)((SDRAM_TRP ) + 0.5)) - | MCF_SDRAMC_SDCFG1_REF2ACT((int)(((SDRAM_TRFC) ) + 0.5)) - | MCF_SDRAMC_SDCFG1_WTLAT(3)); - MCF_SDRAMC_SDCFG2 = (0 - | MCF_SDRAMC_SDCFG2_BRD2PRE(SDRAM_BL/2 + 1) - | MCF_SDRAMC_SDCFG2_BWT2RW(SDRAM_BL/2 + SDRAM_TWR) - | MCF_SDRAMC_SDCFG2_BRD2WT((int)((SDRAM_CASL+SDRAM_BL/2-1.0)+0.5)) - | MCF_SDRAMC_SDCFG2_BL(SDRAM_BL-1)); - - - /* - * Precharge and enable write to SDMR - */ - MCF_SDRAMC_SDCR = (0 - | MCF_SDRAMC_SDCR_MODE_EN - | MCF_SDRAMC_SDCR_CKE - | MCF_SDRAMC_SDCR_DDR - | MCF_SDRAMC_SDCR_MUX(1) - | MCF_SDRAMC_SDCR_RCNT((int)(((SDRAM_TREFI/(SYSTEM_PERIOD*64)) - 1) + 0.5)) - | MCF_SDRAMC_SDCR_PS_16 - | MCF_SDRAMC_SDCR_IPALL); - - /* - * Write extended mode register - */ - MCF_SDRAMC_SDMR = (0 - | MCF_SDRAMC_SDMR_BNKAD_LEMR - | MCF_SDRAMC_SDMR_AD(0x0) - | MCF_SDRAMC_SDMR_CMD); - - /* - * Write mode register and reset DLL - */ - MCF_SDRAMC_SDMR = (0 - | MCF_SDRAMC_SDMR_BNKAD_LMR - | MCF_SDRAMC_SDMR_AD(0x163) - | MCF_SDRAMC_SDMR_CMD); - - /* - * Execute a PALL command - */ - MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_IPALL; - - /* - * Perform two REF cycles - */ - MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_IREF; - MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_IREF; - - /* - * Write mode register and clear reset DLL - */ - MCF_SDRAMC_SDMR = (0 - | MCF_SDRAMC_SDMR_BNKAD_LMR - | MCF_SDRAMC_SDMR_AD(0x063) - | MCF_SDRAMC_SDMR_CMD); - - /* - * Enable auto refresh and lock SDMR - */ - MCF_SDRAMC_SDCR &= ~MCF_SDRAMC_SDCR_MODE_EN; - MCF_SDRAMC_SDCR |= (0 - | MCF_SDRAMC_SDCR_REF - | MCF_SDRAMC_SDCR_DQS_OE(0xC)); - } -} - -void gpio_init(void) -{ - /* Enable UART0 pins */ - MCF_GPIO_PAR_UART = ( 0 - | MCF_GPIO_PAR_UART_PAR_URXD0 - | MCF_GPIO_PAR_UART_PAR_UTXD0); - - /* Initialize TIN3 as a GPIO output to enable the write - half of the latch */ - MCF_GPIO_PAR_TIMER = 0x00; - __raw_writeb(0x08, MCFGPIO_PDDR_TIMER); - __raw_writeb(0x00, MCFGPIO_PCLRR_TIMER); - -} - -int clock_pll(int fsys, int flags) -{ - int fref, temp, fout, mfd; - u32 i; - - fref = FREF; - - if (fsys == 0) { - /* Return current PLL output */ - mfd = MCF_PLL_PFDR; - - return (fref * mfd / (BUSDIV * 4)); - } - - /* Check bounds of requested system clock */ - if (fsys > MAX_FSYS) - fsys = MAX_FSYS; - if (fsys < MIN_FSYS) - fsys = MIN_FSYS; - - /* Multiplying by 100 when calculating the temp value, - and then dividing by 100 to calculate the mfd allows - for exact values without needing to include floating - point libraries. */ - temp = 100 * fsys / fref; - mfd = 4 * BUSDIV * temp / 100; - - /* Determine the output frequency for selected values */ - fout = (fref * mfd / (BUSDIV * 4)); - - /* - * Check to see if the SDRAM has already been initialized. - * If it has then the SDRAM needs to be put into self refresh - * mode before reprogramming the PLL. - */ - if (MCF_SDRAMC_SDCR & MCF_SDRAMC_SDCR_REF) - /* Put SDRAM into self refresh mode */ - MCF_SDRAMC_SDCR &= ~MCF_SDRAMC_SDCR_CKE; - - /* - * Initialize the PLL to generate the new system clock frequency. - * The device must be put into LIMP mode to reprogram the PLL. - */ - - /* Enter LIMP mode */ - clock_limp(DEFAULT_LPD); - - /* Reprogram PLL for desired fsys */ - MCF_PLL_PODR = (0 - | MCF_PLL_PODR_CPUDIV(BUSDIV/3) - | MCF_PLL_PODR_BUSDIV(BUSDIV)); - - MCF_PLL_PFDR = mfd; - - /* Exit LIMP mode */ - clock_exit_limp(); - - /* - * Return the SDRAM to normal operation if it is in use. - */ - if (MCF_SDRAMC_SDCR & MCF_SDRAMC_SDCR_REF) - /* Exit self refresh mode */ - MCF_SDRAMC_SDCR |= MCF_SDRAMC_SDCR_CKE; - - /* Errata - workaround for SDRAM opeartion after exiting LIMP mode */ - MCF_SDRAMC_LIMP_FIX = MCF_SDRAMC_REFRESH; - - /* wait for DQS logic to relock */ - for (i = 0; i < 0x200; i++) - ; - - return fout; -} - -int clock_limp(int div) -{ - u32 temp; - - /* Check bounds of divider */ - if (div < MIN_LPD) - div = MIN_LPD; - if (div > MAX_LPD) - div = MAX_LPD; - - /* Save of the current value of the SSIDIV so we don't - overwrite the value*/ - temp = (MCF_CCM_CDR & MCF_CCM_CDR_SSIDIV(0xF)); - - /* Apply the divider to the system clock */ - MCF_CCM_CDR = ( 0 - | MCF_CCM_CDR_LPDIV(div) - | MCF_CCM_CDR_SSIDIV(temp)); - - MCF_CCM_MISCCR |= MCF_CCM_MISCCR_LIMP; - - return (FREF/(3*(1 << div))); -} - -int clock_exit_limp(void) -{ - int fout; - - /* Exit LIMP mode */ - MCF_CCM_MISCCR = (MCF_CCM_MISCCR & ~ MCF_CCM_MISCCR_LIMP); - - /* Wait for PLL to lock */ - while (!(MCF_CCM_MISCCR & MCF_CCM_MISCCR_PLL_LOCK)) - ; - - fout = get_sys_clock(); - - return fout; -} - -int get_sys_clock(void) -{ - int divider; - - /* Test to see if device is in LIMP mode */ - if (MCF_CCM_MISCCR & MCF_CCM_MISCCR_LIMP) { - divider = MCF_CCM_CDR & MCF_CCM_CDR_LPDIV(0xF); - return (FREF/(2 << divider)); - } - else - return ((FREF * MCF_PLL_PFDR) / (BUSDIV * 4)); -} diff --git a/arch/m68knommu/platform/532x/gpio.c b/arch/m68knommu/platform/532x/gpio.c deleted file mode 100644 index 212a85deac90..000000000000 --- a/arch/m68knommu/platform/532x/gpio.c +++ /dev/null @@ -1,337 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "PIRQ", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFEPORT_EPDDR, - .podr = (void __iomem *) MCFEPORT_EPDR, - .ppdr = (void __iomem *) MCFEPORT_EPPDR, - }, - { - .gpio_chip = { - .label = "FECH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 8, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FECH, - .podr = (void __iomem *) MCFGPIO_PODR_FECH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FECH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FECH, - }, - { - .gpio_chip = { - .label = "FECL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 16, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FECL, - .podr = (void __iomem *) MCFGPIO_PODR_FECL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FECL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FECL, - }, - { - .gpio_chip = { - .label = "SSI", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 24, - .ngpio = 5, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_SSI, - .podr = (void __iomem *) MCFGPIO_PODR_SSI, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_SSI, - .setr = (void __iomem *) MCFGPIO_PPDSDR_SSI, - .clrr = (void __iomem *) MCFGPIO_PCLRR_SSI, - }, - { - .gpio_chip = { - .label = "BUSCTL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 32, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BUSCTL, - .podr = (void __iomem *) MCFGPIO_PODR_BUSCTL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BUSCTL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BUSCTL, - }, - { - .gpio_chip = { - .label = "BE", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 40, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_BE, - .podr = (void __iomem *) MCFGPIO_PODR_BE, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_BE, - .setr = (void __iomem *) MCFGPIO_PPDSDR_BE, - .clrr = (void __iomem *) MCFGPIO_PCLRR_BE, - }, - { - .gpio_chip = { - .label = "CS", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 49, - .ngpio = 5, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_CS, - .podr = (void __iomem *) MCFGPIO_PODR_CS, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .setr = (void __iomem *) MCFGPIO_PPDSDR_CS, - .clrr = (void __iomem *) MCFGPIO_PCLRR_CS, - }, - { - .gpio_chip = { - .label = "PWM", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 58, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_PWM, - .podr = (void __iomem *) MCFGPIO_PODR_PWM, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_PWM, - .setr = (void __iomem *) MCFGPIO_PPDSDR_PWM, - .clrr = (void __iomem *) MCFGPIO_PCLRR_PWM, - }, - { - .gpio_chip = { - .label = "FECI2C", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 64, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_FECI2C, - .podr = (void __iomem *) MCFGPIO_PODR_FECI2C, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .setr = (void __iomem *) MCFGPIO_PPDSDR_FECI2C, - .clrr = (void __iomem *) MCFGPIO_PCLRR_FECI2C, - }, - { - .gpio_chip = { - .label = "UART", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 72, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_UART, - .podr = (void __iomem *) MCFGPIO_PODR_UART, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_UART, - .setr = (void __iomem *) MCFGPIO_PPDSDR_UART, - .clrr = (void __iomem *) MCFGPIO_PCLRR_UART, - }, - { - .gpio_chip = { - .label = "QSPI", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 80, - .ngpio = 6, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_QSPI, - .podr = (void __iomem *) MCFGPIO_PODR_QSPI, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .setr = (void __iomem *) MCFGPIO_PPDSDR_QSPI, - .clrr = (void __iomem *) MCFGPIO_PCLRR_QSPI, - }, - { - .gpio_chip = { - .label = "TIMER", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 88, - .ngpio = 4, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_TIMER, - .podr = (void __iomem *) MCFGPIO_PODR_TIMER, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, - .setr = (void __iomem *) MCFGPIO_PPDSDR_TIMER, - .clrr = (void __iomem *) MCFGPIO_PCLRR_TIMER, - }, - { - .gpio_chip = { - .label = "LCDDATAH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 96, - .ngpio = 2, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_LCDDATAH, - .podr = (void __iomem *) MCFGPIO_PODR_LCDDATAH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDDATAH, - }, - { - .gpio_chip = { - .label = "LCDDATAM", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 104, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_LCDDATAM, - .podr = (void __iomem *) MCFGPIO_PODR_LCDDATAM, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAM, - .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAM, - .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDDATAM, - }, - { - .gpio_chip = { - .label = "LCDDATAL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 112, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_LCDDATAL, - .podr = (void __iomem *) MCFGPIO_PODR_LCDDATAL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDDATAL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDDATAL, - }, - { - .gpio_chip = { - .label = "LCDCTLH", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 120, - .ngpio = 1, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_LCDCTLH, - .podr = (void __iomem *) MCFGPIO_PODR_LCDCTLH, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDCTLH, - .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDCTLH, - .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDCTLH, - }, - { - .gpio_chip = { - .label = "LCDCTLL", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value_fast, - .base = 128, - .ngpio = 8, - }, - .pddr = (void __iomem *) MCFGPIO_PDDR_LCDCTLL, - .podr = (void __iomem *) MCFGPIO_PODR_LCDCTLL, - .ppdr = (void __iomem *) MCFGPIO_PPDSDR_LCDCTLL, - .setr = (void __iomem *) MCFGPIO_PPDSDR_LCDCTLL, - .clrr = (void __iomem *) MCFGPIO_PCLRR_LCDCTLL, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/5407/Makefile b/arch/m68knommu/platform/5407/Makefile deleted file mode 100644 index e83fe148eddc..000000000000 --- a/arch/m68knommu/platform/5407/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# -# Makefile for the m68knommu linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o gpio.o - diff --git a/arch/m68knommu/platform/5407/config.c b/arch/m68knommu/platform/5407/config.c deleted file mode 100644 index 70ea789a400c..000000000000 --- a/arch/m68knommu/platform/5407/config.c +++ /dev/null @@ -1,122 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/5407/config.c - * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2000, Lineo (www.lineo.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/io.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfuart.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m5407_uart_platform[] = { - { - .mapbase = MCF_MBAR + MCFUART_BASE1, - .irq = 73, - }, - { - .mapbase = MCF_MBAR + MCFUART_BASE2, - .irq = 74, - }, - { }, -}; - -static struct platform_device m5407_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m5407_uart_platform, -}; - -static struct platform_device *m5407_devices[] __initdata = { - &m5407_uart, -}; - -/***************************************************************************/ - -static void __init m5407_uart_init_line(int line, int irq) -{ - if (line == 0) { - writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR); - writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART0); - } else if (line == 1) { - writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR); - writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR); - mcf_mapirq2imr(irq, MCFINTC_UART1); - } -} - -static void __init m5407_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m5407_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m5407_uart_init_line(line, m5407_uart_platform[line].irq); -} - -/***************************************************************************/ - -static void __init m5407_timers_init(void) -{ - /* Timer1 is always used as system timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER1ICR); - mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1); - -#ifdef CONFIG_HIGHPROFILE - /* Timer2 is to be used as a high speed profile timer */ - writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3, - MCF_MBAR + MCFSIM_TIMER2ICR); - mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2); -#endif -} - -/***************************************************************************/ - -void m5407_cpu_reset(void) -{ - local_irq_disable(); - /* set watchdog to soft reset, and enabled */ - __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR); - for (;;) - /* wait for watchdog to timeout */; -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ - mach_reset = m5407_cpu_reset; - m5407_timers_init(); - m5407_uarts_init(); - - /* Only support the external interrupts on their primary level */ - mcf_mapirq2imr(25, MCFINTC_EINT1); - mcf_mapirq2imr(27, MCFINTC_EINT3); - mcf_mapirq2imr(29, MCFINTC_EINT5); - mcf_mapirq2imr(31, MCFINTC_EINT7); -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - platform_add_devices(m5407_devices, ARRAY_SIZE(m5407_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/5407/gpio.c b/arch/m68knommu/platform/5407/gpio.c deleted file mode 100644 index 5850612b4a38..000000000000 --- a/arch/m68knommu/platform/5407/gpio.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Coldfire generic GPIO support - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. -*/ - -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfgpio.h> - -static struct mcf_gpio_chip mcf_gpio_chips[] = { - { - .gpio_chip = { - .label = "PP", - .request = mcf_gpio_request, - .free = mcf_gpio_free, - .direction_input = mcf_gpio_direction_input, - .direction_output = mcf_gpio_direction_output, - .get = mcf_gpio_get_value, - .set = mcf_gpio_set_value, - .ngpio = 16, - }, - .pddr = (void __iomem *) MCFSIM_PADDR, - .podr = (void __iomem *) MCFSIM_PADAT, - .ppdr = (void __iomem *) MCFSIM_PADAT, - }, -}; - -static int __init mcf_gpio_init(void) -{ - unsigned i = 0; - while (i < ARRAY_SIZE(mcf_gpio_chips)) - (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); - return 0; -} - -core_initcall(mcf_gpio_init); diff --git a/arch/m68knommu/platform/54xx/Makefile b/arch/m68knommu/platform/54xx/Makefile deleted file mode 100644 index 6cfd090ec3cd..000000000000 --- a/arch/m68knommu/platform/54xx/Makefile +++ /dev/null @@ -1,19 +0,0 @@ -# -# Makefile for the m68knommu linux kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# EXTRA_CFLAGS += -DTRAP_DBG_INTERRUPT -# EXTRA_AFLAGS += -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-y := config.o -obj-$(CONFIG_FIREBEE) += firebee.o - diff --git a/arch/m68knommu/platform/54xx/config.c b/arch/m68knommu/platform/54xx/config.c deleted file mode 100644 index 78130984db95..000000000000 --- a/arch/m68knommu/platform/54xx/config.c +++ /dev/null @@ -1,115 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/54xx/config.c - * - * Copyright (C) 2010, Philippe De Muyter <phdm@macqel.be> - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/m54xxsim.h> -#include <asm/mcfuart.h> -#include <asm/m54xxgpt.h> - -/***************************************************************************/ - -static struct mcf_platform_uart m54xx_uart_platform[] = { - { - .mapbase = MCF_MBAR + MCFUART_BASE1, - .irq = 64 + 35, - }, - { - .mapbase = MCF_MBAR + MCFUART_BASE2, - .irq = 64 + 34, - }, - { - .mapbase = MCF_MBAR + MCFUART_BASE3, - .irq = 64 + 33, - }, - { - .mapbase = MCF_MBAR + MCFUART_BASE4, - .irq = 64 + 32, - }, -}; - -static struct platform_device m54xx_uart = { - .name = "mcfuart", - .id = 0, - .dev.platform_data = m54xx_uart_platform, -}; - -static struct platform_device *m54xx_devices[] __initdata = { - &m54xx_uart, -}; - - -/***************************************************************************/ - -static void __init m54xx_uart_init_line(int line, int irq) -{ - int rts_cts; - - /* enable io pins */ - switch (line) { - case 0: - rts_cts = 0; break; - case 1: - rts_cts = MCF_PAR_PSC_RTS_RTS; break; - case 2: - rts_cts = MCF_PAR_PSC_RTS_RTS | MCF_PAR_PSC_CTS_CTS; break; - case 3: - rts_cts = 0; break; - } - __raw_writeb(MCF_PAR_PSC_TXD | rts_cts | MCF_PAR_PSC_RXD, - MCF_MBAR + MCF_PAR_PSC(line)); -} - -static void __init m54xx_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m54xx_uart_platform); - int line; - - for (line = 0; (line < nrlines); line++) - m54xx_uart_init_line(line, m54xx_uart_platform[line].irq); -} - -/***************************************************************************/ - -static void mcf54xx_reset(void) -{ - /* disable interrupts and enable the watchdog */ - asm("movew #0x2700, %sr\n"); - __raw_writel(0, MCF_MBAR + MCF_GPT_GMS0); - __raw_writel(MCF_GPT_GCIR_CNT(1), MCF_MBAR + MCF_GPT_GCIR0); - __raw_writel(MCF_GPT_GMS_WDEN | MCF_GPT_GMS_CE | MCF_GPT_GMS_TMS(4), - MCF_MBAR + MCF_GPT_GMS0); -} - -/***************************************************************************/ - -void __init config_BSP(char *commandp, int size) -{ - mach_reset = mcf54xx_reset; - m54xx_uarts_init(); -} - -/***************************************************************************/ - -static int __init init_BSP(void) -{ - - platform_add_devices(m54xx_devices, ARRAY_SIZE(m54xx_devices)); - return 0; -} - -arch_initcall(init_BSP); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/54xx/firebee.c b/arch/m68knommu/platform/54xx/firebee.c deleted file mode 100644 index 46d50534f981..000000000000 --- a/arch/m68knommu/platform/54xx/firebee.c +++ /dev/null @@ -1,86 +0,0 @@ -/***************************************************************************/ - -/* - * firebee.c -- extra startup code support for the FireBee boards - * - * Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/platform_device.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> -#include <linux/mtd/physmap.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> - -/***************************************************************************/ - -/* - * 8MB of NOR flash fitted to the FireBee board. - */ -#define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */ -#define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */ - -#define PART_BOOT_START 0x00000000 /* Start at bottom of flash */ -#define PART_BOOT_SIZE 0x00040000 /* 256k in size */ -#define PART_IMAGE_START 0x00040000 /* Start after boot loader */ -#define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */ -#define PART_FPGA_START 0x00700000 /* Start at offset 7MB */ -#define PART_FPGA_SIZE 0x00100000 /* 1MB in size */ - -static struct mtd_partition firebee_flash_parts[] = { - { - .name = "dBUG", - .offset = PART_BOOT_START, - .size = PART_BOOT_SIZE, - }, - { - .name = "FPGA", - .offset = PART_FPGA_START, - .size = PART_FPGA_SIZE, - }, - { - .name = "image", - .offset = PART_IMAGE_START, - .size = PART_IMAGE_SIZE, - }, -}; - -static struct physmap_flash_data firebee_flash_data = { - .width = 2, - .nr_parts = ARRAY_SIZE(firebee_flash_parts), - .parts = firebee_flash_parts, -}; - -static struct resource firebee_flash_resource = { - .start = FLASH_PHYS_ADDR, - .end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device firebee_flash = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &firebee_flash_data, - }, - .num_resources = 1, - .resource = &firebee_flash_resource, -}; - -/***************************************************************************/ - -static int __init init_firebee(void) -{ - platform_device_register(&firebee_flash); - return 0; -} - -arch_initcall(init_firebee); - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/68328/Makefile b/arch/m68knommu/platform/68328/Makefile deleted file mode 100644 index 5e5435552d56..000000000000 --- a/arch/m68knommu/platform/68328/Makefile +++ /dev/null @@ -1,22 +0,0 @@ -# -# Makefile for arch/m68knommu/platform/68328. -# - -head-y = head-$(MODEL).o -head-$(CONFIG_PILOT) = head-pilot.o -head-$(CONFIG_DRAGEN2) = head-de2.o - -obj-y += entry.o ints.o timers.o -obj-$(CONFIG_M68328) += config.o -obj-$(CONFIG_ROM) += romvec.o - -extra-y := head.o -extra-$(CONFIG_M68328) += bootlogo.rh head.o - -$(obj)/bootlogo.rh: $(src)/bootlogo.h - perl $(src)/bootlogo.pl < $(src)/bootlogo.h > $(obj)/bootlogo.rh - -$(obj)/head.o: $(obj)/$(head-y) - ln -sf $(head-y) $(obj)/head.o - -clean-files := $(obj)/bootlogo.rh $(obj)/head.o $(head-y) diff --git a/arch/m68knommu/platform/68328/bootlogo.h b/arch/m68knommu/platform/68328/bootlogo.h deleted file mode 100644 index 67bc2c17386e..000000000000 --- a/arch/m68knommu/platform/68328/bootlogo.h +++ /dev/null @@ -1,270 +0,0 @@ -#define bootlogo_width 160 -#define bootlogo_height 160 -static unsigned char bootlogo_bits[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x01, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x40, 0x55, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 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0x90, 0x20, 0x02, 0xfc, 0xff, 0x1f, 0x80, 0x22, 0x00, 0x90, 0x24, 0x49, - 0x12, 0x92, 0x40, 0xb2, 0x24, 0x09, 0xc9, 0x49, 0x04, 0x80, 0x90, 0xfc, - 0xff, 0xbf, 0x24, 0x00, 0x00, 0x90, 0x24, 0x49, 0x12, 0x92, 0x40, 0x92, - 0x24, 0x06, 0x49, 0x48, 0x50, 0x0a, 0x02, 0xfe, 0xff, 0x3f, 0x00, 0x05, - 0x00, 0x50, 0xa5, 0x4a, 0x15, 0x92, 0x40, 0x92, 0x24, 0x06, 0x49, 0x48, - 0x80, 0x40, 0x48, 0xfe, 0xff, 0x3f, 0x49, 0x00, 0x00, 0x20, 0x42, 0x84, - 0x88, 0x1a, 0x41, 0x92, 0x34, 0x49, 0x49, 0x68, 0x00, 0x38, 0x10, 0x07, - 0x00, 0x60, 0x80, 0x00, 0x00, 0x20, 0x42, 0x84, 0x88, 0x14, 0x4e, 0x92, - 0x28, 0x49, 0x46, 0x50, 0x00, 0x80, 0x83, 0x01, 0x00, 0xa0, 0x6a, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, - 0x00, 0x00, 0xfc, 0x00, 0x00, 0xc0, 0x3b, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, }; diff --git a/arch/m68knommu/platform/68328/bootlogo.pl b/arch/m68knommu/platform/68328/bootlogo.pl deleted file mode 100644 index b04ae3f50da5..000000000000 --- a/arch/m68knommu/platform/68328/bootlogo.pl +++ /dev/null @@ -1,10 +0,0 @@ - -$_ = join("", <>); - -s/(0x[0-9a-f]{2})/sprintf("0x%.2x",ord(pack("b8",unpack("B8",chr(hex($1))))))/gei; - -s/^ / .byte /gm; -s/[,};]+$//gm; -s/^static.*//gm; - -print $_; diff --git a/arch/m68knommu/platform/68328/config.c b/arch/m68knommu/platform/68328/config.c deleted file mode 100644 index a7bd21deb00f..000000000000 --- a/arch/m68knommu/platform/68328/config.c +++ /dev/null @@ -1,52 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/68328/config.c - * - * Copyright (C) 1993 Hamish Macdonald - * Copyright (C) 1999 D. Jeff Dionne - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * - * VZ Support/Fixes Evan Stawnyczy <e@lineo.ca> - */ - -/***************************************************************************/ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <asm/system.h> -#include <asm/machdep.h> -#include <asm/MC68328.h> - -/***************************************************************************/ - -void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec); - -/***************************************************************************/ - -void m68328_reset (void) -{ - local_irq_disable(); - asm volatile ("moveal #0x10c00000, %a0;\n\t" - "moveb #0, 0xFFFFF300;\n\t" - "moveal 0(%a0), %sp;\n\t" - "moveal 4(%a0), %a0;\n\t" - "jmp (%a0);"); -} - -/***************************************************************************/ - -void config_BSP(char *command, int len) -{ - printk(KERN_INFO "\n68328 support D. Jeff Dionne <jeff@uclinux.org>\n"); - printk(KERN_INFO "68328 support Kenneth Albanowski <kjahds@kjshds.com>\n"); - printk(KERN_INFO "68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n"); - - mach_gettod = m68328_timer_gettod; - mach_reset = m68328_reset; -} - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/68328/entry.S b/arch/m68knommu/platform/68328/entry.S deleted file mode 100644 index 676960cf022a..000000000000 --- a/arch/m68knommu/platform/68328/entry.S +++ /dev/null @@ -1,263 +0,0 @@ -/* - * linux/arch/m68knommu/platform/68328/entry.S - * - * Copyright (C) 1991, 1992 Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file README.legal in the main directory of this archive - * for more details. - * - * Linux/m68k support by Hamish Macdonald - */ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/thread_info.h> -#include <asm/unistd.h> -#include <asm/errno.h> -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/traps.h> -#include <asm/asm-offsets.h> -#include <asm/entry.h> - -.text - -.globl system_call -.globl resume -.globl ret_from_exception -.globl ret_from_signal -.globl sys_call_table -.globl ret_from_interrupt -.globl bad_interrupt -.globl inthandler1 -.globl inthandler2 -.globl inthandler3 -.globl inthandler4 -.globl inthandler5 -.globl inthandler6 -.globl inthandler7 - -badsys: - movel #-ENOSYS,%sp@(PT_OFF_D0) - jra ret_from_exception - -do_trace: - movel #-ENOSYS,%sp@(PT_OFF_D0) /* needed for strace*/ - subql #4,%sp - SAVE_SWITCH_STACK - jbsr syscall_trace_enter - RESTORE_SWITCH_STACK - addql #4,%sp - movel %sp@(PT_OFF_ORIG_D0),%d1 - movel #-ENOSYS,%d0 - cmpl #NR_syscalls,%d1 - jcc 1f - lsl #2,%d1 - lea sys_call_table, %a0 - jbsr %a0@(%d1) - -1: movel %d0,%sp@(PT_OFF_D0) /* save the return value */ - subql #4,%sp /* dummy return address */ - SAVE_SWITCH_STACK - jbsr syscall_trace_leave - -ret_from_signal: - RESTORE_SWITCH_STACK - addql #4,%sp - jra ret_from_exception - -ENTRY(system_call) - SAVE_ALL - - /* save top of frame*/ - pea %sp@ - jbsr set_esp0 - addql #4,%sp - - movel %sp@(PT_OFF_ORIG_D0),%d0 - - movel %sp,%d1 /* get thread_info pointer */ - andl #-THREAD_SIZE,%d1 - movel %d1,%a2 - btst #(TIF_SYSCALL_TRACE%8),%a2@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) - jne do_trace - cmpl #NR_syscalls,%d0 - jcc badsys - lsl #2,%d0 - lea sys_call_table,%a0 - movel %a0@(%d0), %a0 - jbsr %a0@ - movel %d0,%sp@(PT_OFF_D0) /* save the return value*/ - -ret_from_exception: - btst #5,%sp@(PT_OFF_SR) /* check if returning to kernel*/ - jeq Luser_return /* if so, skip resched, signals*/ - -Lkernel_return: - RESTORE_ALL - -Luser_return: - /* only allow interrupts when we are really the last one on the*/ - /* kernel stack, otherwise stack overflow can occur during*/ - /* heavy interrupt load*/ - andw #ALLOWINT,%sr - - movel %sp,%d1 /* get thread_info pointer */ - andl #-THREAD_SIZE,%d1 - movel %d1,%a2 -1: - move %a2@(TI_FLAGS),%d1 /* thread_info->flags */ - jne Lwork_to_do - RESTORE_ALL - -Lwork_to_do: - movel %a2@(TI_FLAGS),%d1 /* thread_info->flags */ - btst #TIF_NEED_RESCHED,%d1 - jne reschedule - -Lsignal_return: - subql #4,%sp /* dummy return address*/ - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - bsrw do_signal - addql #4,%sp - RESTORE_SWITCH_STACK - addql #4,%sp - jra 1b - -/* - * This is the main interrupt handler, responsible for calling process_int() - */ -inthandler1: - SAVE_ALL - movew %sp@(PT_OFF_FORMATVEC), %d0 - and #0x3ff, %d0 - - movel %sp,%sp@- - movel #65,%sp@- /* put vector # on stack*/ - jbsr process_int /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -inthandler2: - SAVE_ALL - movew %sp@(PT_OFF_FORMATVEC), %d0 - and #0x3ff, %d0 - - movel %sp,%sp@- - movel #66,%sp@- /* put vector # on stack*/ - jbsr process_int /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -inthandler3: - SAVE_ALL - movew %sp@(PT_OFF_FORMATVEC), %d0 - and #0x3ff, %d0 - - movel %sp,%sp@- - movel #67,%sp@- /* put vector # on stack*/ - jbsr process_int /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -inthandler4: - SAVE_ALL - movew %sp@(PT_OFF_FORMATVEC), %d0 - and #0x3ff, %d0 - - movel %sp,%sp@- - movel #68,%sp@- /* put vector # on stack*/ - jbsr process_int /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -inthandler5: - SAVE_ALL - movew %sp@(PT_OFF_FORMATVEC), %d0 - and #0x3ff, %d0 - - movel %sp,%sp@- - movel #69,%sp@- /* put vector # on stack*/ - jbsr process_int /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -inthandler6: - SAVE_ALL - movew %sp@(PT_OFF_FORMATVEC), %d0 - and #0x3ff, %d0 - - movel %sp,%sp@- - movel #70,%sp@- /* put vector # on stack*/ - jbsr process_int /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -inthandler7: - SAVE_ALL - movew %sp@(PT_OFF_FORMATVEC), %d0 - and #0x3ff, %d0 - - movel %sp,%sp@- - movel #71,%sp@- /* put vector # on stack*/ - jbsr process_int /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -inthandler: - SAVE_ALL - movew %sp@(PT_OFF_FORMATVEC), %d0 - and #0x3ff, %d0 - - movel %sp,%sp@- - movel %d0,%sp@- /* put vector # on stack*/ - jbsr process_int /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -ret_from_interrupt: - jeq 1f -2: - RESTORE_ALL -1: - moveb %sp@(PT_OFF_SR), %d0 - and #7, %d0 - jhi 2b - - /* check if we need to do software interrupts */ - jeq ret_from_exception - - pea ret_from_exception - jra do_softirq - - -/* - * Handler for uninitialized and spurious interrupts. - */ -ENTRY(bad_interrupt) - addql #1,num_spurious - rte - -/* - * Beware - when entering resume, prev (the current task) is - * in a0, next (the new task) is in a1,so don't change these - * registers until their contents are no longer needed. - */ -ENTRY(resume) - movel %a0,%d1 /* save prev thread in d1 */ - movew %sr,%a0@(TASK_THREAD+THREAD_SR) /* save sr */ - movel %usp,%a2 /* save usp */ - movel %a2,%a0@(TASK_THREAD+THREAD_USP) - - SAVE_SWITCH_STACK - movel %sp,%a0@(TASK_THREAD+THREAD_KSP) /* save kernel stack */ - movel %a1@(TASK_THREAD+THREAD_KSP),%sp /* restore new thread stack */ - RESTORE_SWITCH_STACK - - movel %a1@(TASK_THREAD+THREAD_USP),%a0 /* restore user stack */ - movel %a0,%usp - movew %a1@(TASK_THREAD+THREAD_SR),%sr /* restore thread status reg */ - rts - diff --git a/arch/m68knommu/platform/68328/head-de2.S b/arch/m68knommu/platform/68328/head-de2.S deleted file mode 100644 index f632fdcb93e9..000000000000 --- a/arch/m68knommu/platform/68328/head-de2.S +++ /dev/null @@ -1,128 +0,0 @@ - -#define MEM_END 0x00800000 /* Memory size 8Mb */ - -#undef CRT_DEBUG - -.macro PUTC CHAR -#ifdef CRT_DEBUG - moveq #\CHAR, %d7 - jsr putc -#endif -.endm - - .global _start - .global _rambase - .global _ramvec - .global _ramstart - .global _ramend - - .data - -/* - * Set up the usable of RAM stuff - */ -_rambase: - .long 0 -_ramvec: - .long 0 -_ramstart: - .long 0 -_ramend: - .long 0 - - .text - -_start: - -/* - * Setup initial stack - */ - /* disable all interrupts */ - movew #0x2700, %sr - movel #-1, 0xfffff304 - movel #MEM_END-4, %sp - - PUTC '\r' - PUTC '\n' - PUTC 'A' - PUTC 'B' - -/* - * Determine end of RAM - */ - - movel #MEM_END, %a0 - movel %a0, _ramend - - PUTC 'C' - -/* - * Move ROM filesystem above bss :-) - */ - - moveal #_sbss, %a0 /* romfs at the start of bss */ - moveal #_ebss, %a1 /* Set up destination */ - movel %a0, %a2 /* Copy of bss start */ - - movel 8(%a0), %d1 /* Get size of ROMFS */ - addql #8, %d1 /* Allow for rounding */ - andl #0xfffffffc, %d1 /* Whole words */ - - addl %d1, %a0 /* Copy from end */ - addl %d1, %a1 /* Copy from end */ - movel %a1, _ramstart /* Set start of ram */ - -1: - movel -(%a0), %d0 /* Copy dword */ - movel %d0, -(%a1) - cmpl %a0, %a2 /* Check if at end */ - bne 1b - - PUTC 'D' - -/* - * Initialize BSS segment to 0 - */ - - lea _sbss, %a0 - lea _ebss, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -2: cmpal %a0, %a1 - beq 1f - clrl (%a0)+ - bra 2b -1: - - PUTC 'E' - -/* - * Load the current task pointer and stack - */ - - lea init_thread_union, %a0 - lea 0x2000(%a0), %sp - - PUTC 'F' - PUTC '\r' - PUTC '\n' - -/* - * Go - */ - - jmp start_kernel - -/* - * Local functions - */ - -#ifdef CRT_DEBUG -putc: - moveb %d7, 0xfffff907 -1: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq 1b - rts -#endif diff --git a/arch/m68knommu/platform/68328/head-pilot.S b/arch/m68knommu/platform/68328/head-pilot.S deleted file mode 100644 index aecff532b343..000000000000 --- a/arch/m68knommu/platform/68328/head-pilot.S +++ /dev/null @@ -1,222 +0,0 @@ -/* - * linux/arch/m68knommu/platform/68328/head-pilot.S - * - A startup file for the MC68328 - * - * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, - * Kenneth Albanowski <kjahds@kjahds.com>, - * The Silver Hammer Group, Ltd. - * - * (c) 1995, Dionne & Associates - * (c) 1995, DKG Display Tech. - */ - -#define ASSEMBLY - -#define IMMED # -#define DBG_PUTC(x) moveb IMMED x, 0xfffff907 - - -.global _stext -.global _start - -.global _rambase -.global _ramvec -.global _ramstart -.global _ramend - -.global penguin_bits - -#ifdef CONFIG_PILOT - -#define IMR 0xFFFFF304 - - .data - .align 16 - -penguin_bits: -#include "bootlogo.rh" - -#endif - -/*****************************************************************************/ - -.data - -/* - * Set up the usable of RAM stuff. Size of RAM is determined then - * an initial stack set up at the end. - */ -.align 4 -_ramvec: -.long 0 -_rambase: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 - -.text - -_start: -_stext: - - -#ifdef CONFIG_M68328 - -#ifdef CONFIG_PILOT - .byte 0x4e, 0xfa, 0x00, 0x0a /* Jmp +X bytes */ - .byte 'b', 'o', 'o', 't' - .word 10000 - - nop -#endif - - moveq #0, %d0 - movew %d0, 0xfffff618 /* Watchdog off */ - movel #0x00011f07, 0xfffff114 /* CS A1 Mask */ - - movew #0x0800, 0xfffff906 /* Ignore CTS */ - movew #0x010b, 0xfffff902 /* BAUD to 9600 */ - - movew #0x2410, 0xfffff200 /* PLLCR */ - movew #0x123, 0xfffff202 /* PLLFSR */ - -#ifdef CONFIG_PILOT - moveb #0, 0xfffffA27 /* LCKCON */ - movel #_start, 0xfffffA00 /* LSSA */ - moveb #0xa, 0xfffffA05 /* LVPW */ - movew #0x9f, 0xFFFFFa08 /* LXMAX */ - movew #0x9f, 0xFFFFFa0a /* LYMAX */ - moveb #9, 0xfffffa29 /* LBAR */ - moveb #0, 0xfffffa25 /* LPXCD */ - moveb #0x04, 0xFFFFFa20 /* LPICF */ - moveb #0x58, 0xfffffA27 /* LCKCON */ - moveb #0x85, 0xfffff429 /* PFDATA */ - moveb #0xd8, 0xfffffA27 /* LCKCON */ - moveb #0xc5, 0xfffff429 /* PFDATA */ - moveb #0xd5, 0xfffff429 /* PFDATA */ - - moveal #0x00100000, %a3 - moveal #0x100ffc00, %a4 -#endif /* CONFIG_PILOT */ - -#endif /* CONFIG_M68328 */ - - movew #0x2700, %sr - lea %a4@(-4), %sp - - DBG_PUTC('\r') - DBG_PUTC('\n') - DBG_PUTC('A') - - moveq #0,%d0 - movew #16384, %d0 /* PLL settle wait loop */ -L0: - subw #1, %d0 - bne L0 - - DBG_PUTC('B') - - /* Copy command line from beginning of RAM (+16) to end of bss */ - movel #CONFIG_VECTORBASE, %d7 - addl #16, %d7 - moveal %d7, %a0 - moveal #_ebss, %a1 - lea %a1@(512), %a2 - - DBG_PUTC('C') - - /* Copy %a0 to %a1 until %a1 == %a2 */ -L2: - movel %a0@+, %d0 - movel %d0, %a1@+ - cmpal %a1, %a2 - bhi L2 - - /* Copy data+init segment from ROM to RAM */ - moveal #_etext, %a0 - moveal #_sdata, %a1 - moveal #__init_end, %a2 - - DBG_PUTC('D') - - /* Copy %a0 to %a1 until %a1 == %a2 */ -LD1: - movel %a0@+, %d0 - movel %d0, %a1@+ - cmpal %a1, %a2 - bhi LD1 - - DBG_PUTC('E') - - moveal #_sbss, %a0 - moveal #_ebss, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -L1: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi L1 - - DBG_PUTC('F') - - /* Copy command line from end of bss to command line */ - moveal #_ebss, %a0 - moveal #command_line, %a1 - lea %a1@(512), %a2 - - DBG_PUTC('G') - - /* Copy %a0 to %a1 until %a1 == %a2 */ -L3: - movel %a0@+, %d0 - movel %d0, %a1@+ - cmpal %a1, %a2 - bhi L3 - - movel #_sdata, %d0 - movel %d0, _rambase - movel #_ebss, %d0 - movel %d0, _ramstart - - movel %a4, %d0 - subl #4096, %d0 /* Reserve 4K of stack */ - moveq #79, %d7 - movel %d0, _ramend - - movel %a3, %d0 - movel %d0, rom_length - - pea 0 - pea env - pea %sp@(4) - pea 0 - - DBG_PUTC('H') - -#ifdef CONFIG_PILOT - movel #penguin_bits, 0xFFFFFA00 - moveb #10, 0xFFFFFA05 - movew #160, 0xFFFFFA08 - movew #160, 0xFFFFFA0A -#endif /* CONFIG_PILOT */ - - DBG_PUTC('I') - - lea init_thread_union, %a0 - lea 0x2000(%a0), %sp - - DBG_PUTC('J') - DBG_PUTC('\r') - DBG_PUTC('\n') - - jsr start_kernel -_exit: - - jmp _exit - - - .data -env: - .long 0 diff --git a/arch/m68knommu/platform/68328/head-ram.S b/arch/m68knommu/platform/68328/head-ram.S deleted file mode 100644 index 7f1aeeacb219..000000000000 --- a/arch/m68knommu/platform/68328/head-ram.S +++ /dev/null @@ -1,141 +0,0 @@ - - .global __main - .global __rom_start - - .global _rambase - .global _ramstart - - .global splash_bits - .global _start - .global _stext - .global _edata - -#define DEBUG -#define ROM_OFFSET 0x10C00000 -#define STACK_GAURD 0x10 - - .text - -_start: -_stext: - movew #0x2700, %sr /* Exceptions off! */ - -#if 0 - /* Init chip registers. uCsimm specific */ - moveb #0x00, 0xfffffb0b /* Watchdog off */ - moveb #0x10, 0xfffff000 /* SCR */ - - movew #0x2400, 0xfffff200 /* PLLCR */ - movew #0x0123, 0xfffff202 /* PLLFSR */ - - moveb #0x00, 0xfffff40b /* enable chip select */ - moveb #0x00, 0xfffff423 /* enable /DWE */ - moveb #0x08, 0xfffffd0d /* disable hardmap */ - moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */ - - movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */ - movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */ - - movew #0x8f00, 0xfffffc00 /* DRAM configuration */ - movew #0x9667, 0xfffffc02 /* DRAM control */ - movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */ - movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */ - - moveb #0x40, 0xfffff300 /* IVR */ - movel #0x007FFFFF, %d0 /* IMR */ - movel %d0, 0xfffff304 - - moveb 0xfffff42b, %d0 - andb #0xe0, %d0 - moveb %d0, 0xfffff42b - - moveb #0x08, 0xfffff907 /* Ignore CTS */ - movew #0x010b, 0xfffff902 /* BAUD to 9600 */ - movew #0xe100, 0xfffff900 /* enable */ -#endif - - movew #16384, %d0 /* PLL settle wait loop */ -L0: - subw #1, %d0 - bne L0 -#ifdef DEBUG - moveq #70, %d7 /* 'F' */ - moveb %d7,0xfffff907 /* No absolute addresses */ -pclp1: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq pclp1 -#endif /* DEBUG */ - -#ifdef DEBUG - moveq #82, %d7 /* 'R' */ - moveb %d7,0xfffff907 /* No absolute addresses */ -pclp3: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq pclp3 -#endif /* DEBUG */ - moveal #0x007ffff0, %ssp - moveal #_sbss, %a0 - moveal #_ebss, %a1 - - /* Copy 0 to %a0 until %a0 >= %a1 */ -L1: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi L1 - -#ifdef DEBUG - moveq #67, %d7 /* 'C' */ - jsr putc -#endif /* DEBUG */ - - pea 0 - pea env - pea %sp@(4) - pea 0 - -#ifdef DEBUG - moveq #70, %d7 /* 'F' */ - jsr putc -#endif /* DEBUG */ - -lp: - jsr start_kernel - jmp lp -_exit: - - jmp _exit - -__main: - /* nothing */ - rts - -#ifdef DEBUG -putc: - moveb %d7,0xfffff907 -pclp: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq pclp - rts -#endif /* DEBUG */ - - .data - -/* - * Set up the usable of RAM stuff. Size of RAM is determined then - * an initial stack set up at the end. - */ -.align 4 -_ramvec: -.long 0 -_rambase: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 - -env: - .long 0 diff --git a/arch/m68knommu/platform/68328/head-rom.S b/arch/m68knommu/platform/68328/head-rom.S deleted file mode 100644 index 6ec77d3ea0b3..000000000000 --- a/arch/m68knommu/platform/68328/head-rom.S +++ /dev/null @@ -1,110 +0,0 @@ - - .global _start - .global _stext - - .global _rambase - .global _ramvec - .global _ramstart - .global _ramend - -#ifdef CONFIG_INIT_LCD - .global splash_bits -#endif - - .data - -/* - * Set up the usable of RAM stuff. Size of RAM is determined then - * an initial stack set up at the end. - */ -.align 4 -_ramvec: -.long 0 -_rambase: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 - -#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE) - -#ifdef CONFIG_INIT_LCD -splash_bits: -#include "bootlogo.rh" -#endif - - .text -_start: -_stext: movew #0x2700,%sr -#ifdef CONFIG_INIT_LCD - movel #splash_bits, 0xfffffA00 /* LSSA */ - moveb #0x28, 0xfffffA05 /* LVPW */ - movew #0x280, 0xFFFFFa08 /* LXMAX */ - movew #0x1df, 0xFFFFFa0a /* LYMAX */ - moveb #0, 0xfffffa29 /* LBAR */ - moveb #0, 0xfffffa25 /* LPXCD */ - moveb #0x08, 0xFFFFFa20 /* LPICF */ - moveb #0x01, 0xFFFFFA21 /* -ve pol */ - moveb #0x81, 0xfffffA27 /* LCKCON */ - movew #0xff00, 0xfffff412 /* LCD pins */ -#endif - moveal #RAMEND-CONFIG_MEMORY_RESERVE*0x100000 - 0x10, %sp - movew #32767, %d0 /* PLL settle wait loop */ -1: subq #1, %d0 - bne 1b - - /* Copy data segment from ROM to RAM */ - moveal #_etext, %a0 - moveal #_sdata, %a1 - moveal #_edata, %a2 - - /* Copy %a0 to %a1 until %a1 == %a2 */ -1: movel %a0@+, %a1@+ - cmpal %a1, %a2 - bhi 1b - - moveal #_sbss, %a0 - moveal #_ebss, %a1 - /* Copy 0 to %a0 until %a0 == %a1 */ - -1: - clrl %a0@+ - cmpal %a0, %a1 - bhi 1b - - movel #_sdata, %d0 - movel %d0, _rambase - movel #_ebss, %d0 - movel %d0, _ramstart - movel #RAMEND-CONFIG_MEMORY_RESERVE*0x100000, %d0 - movel %d0, _ramend - movel #CONFIG_VECTORBASE, %d0 - movel %d0, _ramvec - -/* - * load the current task pointer and stack - */ - lea init_thread_union, %a0 - lea 0x2000(%a0), %sp - -1: jsr start_kernel - bra 1b -_exit: - - jmp _exit - - -putc: - moveb %d7,0xfffff907 -1: - movew 0xfffff906, %d7 - andw #0x2000, %d7 - beq 1b - rts - - .data -env: - .long 0 - .text - diff --git a/arch/m68knommu/platform/68328/ints.c b/arch/m68knommu/platform/68328/ints.c deleted file mode 100644 index e5631831a200..000000000000 --- a/arch/m68knommu/platform/68328/ints.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * linux/arch/m68knommu/platform/68328/ints.c - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * - * Copyright 1996 Roman Zippel - * Copyright 1999 D. Jeff Dionne <jeff@rt-control.com> - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <asm/traps.h> -#include <asm/io.h> -#include <asm/machdep.h> - -#if defined(CONFIG_M68328) -#include <asm/MC68328.h> -#elif defined(CONFIG_M68EZ328) -#include <asm/MC68EZ328.h> -#elif defined(CONFIG_M68VZ328) -#include <asm/MC68VZ328.h> -#endif - -/* assembler routines */ -asmlinkage void system_call(void); -asmlinkage void buserr(void); -asmlinkage void trap(void); -asmlinkage void trap3(void); -asmlinkage void trap4(void); -asmlinkage void trap5(void); -asmlinkage void trap6(void); -asmlinkage void trap7(void); -asmlinkage void trap8(void); -asmlinkage void trap9(void); -asmlinkage void trap10(void); -asmlinkage void trap11(void); -asmlinkage void trap12(void); -asmlinkage void trap13(void); -asmlinkage void trap14(void); -asmlinkage void trap15(void); -asmlinkage void trap33(void); -asmlinkage void trap34(void); -asmlinkage void trap35(void); -asmlinkage void trap36(void); -asmlinkage void trap37(void); -asmlinkage void trap38(void); -asmlinkage void trap39(void); -asmlinkage void trap40(void); -asmlinkage void trap41(void); -asmlinkage void trap42(void); -asmlinkage void trap43(void); -asmlinkage void trap44(void); -asmlinkage void trap45(void); -asmlinkage void trap46(void); -asmlinkage void trap47(void); -asmlinkage irqreturn_t bad_interrupt(int, void *); -asmlinkage irqreturn_t inthandler(void); -asmlinkage irqreturn_t inthandler1(void); -asmlinkage irqreturn_t inthandler2(void); -asmlinkage irqreturn_t inthandler3(void); -asmlinkage irqreturn_t inthandler4(void); -asmlinkage irqreturn_t inthandler5(void); -asmlinkage irqreturn_t inthandler6(void); -asmlinkage irqreturn_t inthandler7(void); - -extern e_vector *_ramvec; - -/* The number of spurious interrupts */ -volatile unsigned int num_spurious; - -/* The 68k family did not have a good way to determine the source - * of interrupts until later in the family. The EC000 core does - * not provide the vector number on the stack, we vector everything - * into one vector and look in the blasted mask register... - * This code is designed to be fast, almost constant time, not clean! - */ -void process_int(int vec, struct pt_regs *fp) -{ - int irq; - int mask; - - unsigned long pend = ISR; - - while (pend) { - if (pend & 0x0000ffff) { - if (pend & 0x000000ff) { - if (pend & 0x0000000f) { - mask = 0x00000001; - irq = 0; - } else { - mask = 0x00000010; - irq = 4; - } - } else { - if (pend & 0x00000f00) { - mask = 0x00000100; - irq = 8; - } else { - mask = 0x00001000; - irq = 12; - } - } - } else { - if (pend & 0x00ff0000) { - if (pend & 0x000f0000) { - mask = 0x00010000; - irq = 16; - } else { - mask = 0x00100000; - irq = 20; - } - } else { - if (pend & 0x0f000000) { - mask = 0x01000000; - irq = 24; - } else { - mask = 0x10000000; - irq = 28; - } - } - } - - while (! (mask & pend)) { - mask <<=1; - irq++; - } - - do_IRQ(irq, fp); - pend &= ~mask; - } -} - -static void intc_irq_unmask(struct irq_data *d) -{ - IMR &= ~(1 << d->irq); -} - -static void intc_irq_mask(struct irq_data *d) -{ - IMR |= (1 << d->irq); -} - -static struct irq_chip intc_irq_chip = { - .name = "M68K-INTC", - .irq_mask = intc_irq_mask, - .irq_unmask = intc_irq_unmask, -}; - -/* - * This function should be called during kernel startup to initialize - * the machine vector table. - */ -void __init init_IRQ(void) -{ - int i; - - /* set up the vectors */ - for (i = 72; i < 256; ++i) - _ramvec[i] = (e_vector) bad_interrupt; - - _ramvec[32] = system_call; - - _ramvec[65] = (e_vector) inthandler1; - _ramvec[66] = (e_vector) inthandler2; - _ramvec[67] = (e_vector) inthandler3; - _ramvec[68] = (e_vector) inthandler4; - _ramvec[69] = (e_vector) inthandler5; - _ramvec[70] = (e_vector) inthandler6; - _ramvec[71] = (e_vector) inthandler7; - - IVR = 0x40; /* Set DragonBall IVR (interrupt base) to 64 */ - - /* turn off all interrupts */ - IMR = ~0; - - for (i = 0; (i < NR_IRQS); i++) { - set_irq_chip(i, &intc_irq_chip); - set_irq_handler(i, handle_level_irq); - } -} - diff --git a/arch/m68knommu/platform/68328/romvec.S b/arch/m68knommu/platform/68328/romvec.S deleted file mode 100644 index 31084466eae8..000000000000 --- a/arch/m68knommu/platform/68328/romvec.S +++ /dev/null @@ -1,35 +0,0 @@ -/* - * linux/arch/m68knommu/platform/68328/romvec.S - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * - * Copyright 1996 Roman Zippel - * Copyright 1999 D. Jeff Dionne <jeff@rt-control.com> - * Copyright 2006 Greg Ungerer <gerg@snapgear.com> - */ - -.global _start -.global _buserr -.global trap -.global system_call - -.section .romvec - -e_vectors: -.long CONFIG_RAMBASE+CONFIG_RAMSIZE-4, _start, buserr, trap -.long trap, trap, trap, trap -.long trap, trap, trap, trap -.long trap, trap, trap, trap -.long trap, trap, trap, trap -.long trap, trap, trap, trap -.long trap, trap, trap, trap -.long trap, trap, trap, trap -/* TRAP #0-15 */ -.long system_call, trap, trap, trap -.long trap, trap, trap, trap -.long trap, trap, trap, trap -.long trap, trap, trap, trap -.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 - diff --git a/arch/m68knommu/platform/68328/timers.c b/arch/m68knommu/platform/68328/timers.c deleted file mode 100644 index 309f725995bf..000000000000 --- a/arch/m68knommu/platform/68328/timers.c +++ /dev/null @@ -1,134 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/68328/timers.c - * - * Copyright (C) 1993 Hamish Macdonald - * Copyright (C) 1999 D. Jeff Dionne - * Copyright (C) 2001 Georges Menie, Ken Desmet - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/***************************************************************************/ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/clocksource.h> -#include <asm/setup.h> -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/machdep.h> -#include <asm/MC68VZ328.h> - -/***************************************************************************/ - -#if defined(CONFIG_DRAGEN2) -/* with a 33.16 MHz clock, this will give usec resolution to the time functions */ -#define CLOCK_SOURCE TCTL_CLKSOURCE_SYSCLK -#define CLOCK_PRE 7 -#define TICKS_PER_JIFFY 41450 - -#elif defined(CONFIG_XCOPILOT_BUGS) -/* - * The only thing I know is that CLK32 is not available on Xcopilot - * I have little idea about what frequency SYSCLK has on Xcopilot. - * The values for prescaler and compare registers were simply - * taken from the original source - */ -#define CLOCK_SOURCE TCTL_CLKSOURCE_SYSCLK -#define CLOCK_PRE 2 -#define TICKS_PER_JIFFY 0xd7e4 - -#else -/* default to using the 32Khz clock */ -#define CLOCK_SOURCE TCTL_CLKSOURCE_32KHZ -#define CLOCK_PRE 31 -#define TICKS_PER_JIFFY 10 -#endif - -static u32 m68328_tick_cnt; - -/***************************************************************************/ - -static irqreturn_t hw_tick(int irq, void *dummy) -{ - /* Reset Timer1 */ - TSTAT &= 0; - - m68328_tick_cnt += TICKS_PER_JIFFY; - return arch_timer_interrupt(irq, dummy); -} - -/***************************************************************************/ - -static struct irqaction m68328_timer_irq = { - .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = hw_tick, -}; - -/***************************************************************************/ - -static cycle_t m68328_read_clk(struct clocksource *cs) -{ - unsigned long flags; - u32 cycles; - - local_irq_save(flags); - cycles = m68328_tick_cnt + TCN; - local_irq_restore(flags); - - return cycles; -} - -/***************************************************************************/ - -static struct clocksource m68328_clk = { - .name = "timer", - .rating = 250, - .read = m68328_read_clk, - .shift = 20, - .mask = CLOCKSOURCE_MASK(32), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -/***************************************************************************/ - -void hw_timer_init(void) -{ - /* disable timer 1 */ - TCTL = 0; - - /* set ISR */ - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq); - - /* Restart mode, Enable int, Set clock source */ - TCTL = TCTL_OM | TCTL_IRQEN | CLOCK_SOURCE; - TPRER = CLOCK_PRE; - TCMP = TICKS_PER_JIFFY; - - /* Enable timer 1 */ - TCTL |= TCTL_TEN; - m68328_clk.mult = clocksource_hz2mult(TICKS_PER_JIFFY*HZ, m68328_clk.shift); - clocksource_register(&m68328_clk); -} - -/***************************************************************************/ - -void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec) -{ - long now = RTCTIME; - - *year = *mon = *day = 1; - *hour = (now >> 24) % 24; - *min = (now >> 16) % 60; - *sec = now % 60; -} - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/68360/Makefile b/arch/m68knommu/platform/68360/Makefile deleted file mode 100644 index cf5af73a5789..000000000000 --- a/arch/m68knommu/platform/68360/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# Makefile for arch/m68knommu/platform/68360. -# - -obj-y := config.o commproc.o entry.o ints.o - -extra-y := head.o - -$(obj)/head.o: $(obj)/head-$(MODEL).o - ln -sf head-$(MODEL).o $(obj)/head.o diff --git a/arch/m68knommu/platform/68360/commproc.c b/arch/m68knommu/platform/68360/commproc.c deleted file mode 100644 index 8e4e10cc0080..000000000000 --- a/arch/m68knommu/platform/68360/commproc.c +++ /dev/null @@ -1,308 +0,0 @@ -/* - * General Purpose functions for the global management of the - * Communication Processor Module. - * - * Copyright (c) 2000 Michael Leslie <mleslie@lineo.com> - * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) - * - * In addition to the individual control of the communication - * channels, there are a few functions that globally affect the - * communication processor. - * - * Buffer descriptors must be allocated from the dual ported memory - * space. The allocator for that is here. When the communication - * process is reset, we reclaim the memory available. There is - * currently no deallocator for this memory. - * The amount of space available is platform dependent. On the - * MBX, the EPPC software loads additional microcode into the - * communication processor, and uses some of the DP ram for this - * purpose. Current, the first 512 bytes and the last 256 bytes of - * memory are used. Right now I am conservative and only use the - * memory that can never be used for microcode. If there are - * applications that require more DP ram, we can expand the boundaries - * but then we have to be careful of any downloaded microcode. - * - */ - -/* - * Michael Leslie <mleslie@lineo.com> - * adapted Dan Malek's ppc8xx drivers to M68360 - * - */ - -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <asm/irq.h> -#include <asm/m68360.h> -#include <asm/commproc.h> - -/* #include <asm/page.h> */ -/* #include <asm/pgtable.h> */ -extern void *_quicc_base; -extern unsigned int system_clock; - - -static uint dp_alloc_base; /* Starting offset in DP ram */ -static uint dp_alloc_top; /* Max offset + 1 */ - -#if 0 -static void *host_buffer; /* One page of host buffer */ -static void *host_end; /* end + 1 */ -#endif - -/* struct cpm360_t *cpmp; */ /* Pointer to comm processor space */ - -QUICC *pquicc; -/* QUICC *quicc_dpram; */ /* mleslie - temporary; use extern pquicc elsewhere instead */ - - -/* CPM interrupt vector functions. */ -struct cpm_action { - void (*handler)(void *); - void *dev_id; -}; -static struct cpm_action cpm_vecs[CPMVEC_NR]; -static void cpm_interrupt(int irq, void * dev, struct pt_regs * regs); -static void cpm_error_interrupt(void *); - -/* prototypes: */ -void cpm_install_handler(int vec, void (*handler)(), void *dev_id); -void m360_cpm_reset(void); - - - - -void m360_cpm_reset() -{ -/* pte_t *pte; */ - - pquicc = (struct quicc *)(_quicc_base); /* initialized in crt0_rXm.S */ - - /* Perform a CPM reset. */ - pquicc->cp_cr = (SOFTWARE_RESET | CMD_FLAG); - - /* Wait for CPM to become ready (should be 2 clocks). */ - while (pquicc->cp_cr & CMD_FLAG); - - /* On the recommendation of the 68360 manual, p. 7-60 - * - Set sdma interrupt service mask to 7 - * - Set sdma arbitration ID to 4 - */ - pquicc->sdma_sdcr = 0x0740; - - - /* Claim the DP memory for our use. - */ - dp_alloc_base = CPM_DATAONLY_BASE; - dp_alloc_top = dp_alloc_base + CPM_DATAONLY_SIZE; - - - /* Set the host page for allocation. - */ - /* host_buffer = host_page_addr; */ - /* host_end = host_page_addr + PAGE_SIZE; */ - - /* pte = find_pte(&init_mm, host_page_addr); */ - /* pte_val(*pte) |= _PAGE_NO_CACHE; */ - /* flush_tlb_page(current->mm->mmap, host_buffer); */ - - /* Tell everyone where the comm processor resides. - */ -/* cpmp = (cpm360_t *)commproc; */ -} - - -/* This is called during init_IRQ. We used to do it above, but this - * was too early since init_IRQ was not yet called. - */ -void -cpm_interrupt_init(void) -{ - /* Initialize the CPM interrupt controller. - * NOTE THAT pquicc had better have been initialized! - * reference: MC68360UM p. 7-377 - */ - pquicc->intr_cicr = - (CICR_SCD_SCC4 | CICR_SCC_SCC3 | CICR_SCB_SCC2 | CICR_SCA_SCC1) | - (CPM_INTERRUPT << 13) | - CICR_HP_MASK | - (CPM_VECTOR_BASE << 5) | - CICR_SPS; - - /* mask all CPM interrupts from reaching the cpu32 core: */ - pquicc->intr_cimr = 0; - - - /* mles - If I understand correctly, the 360 just pops over to the CPM - * specific vector, obviating the necessity to vector through the IRQ - * whose priority the CPM is set to. This needs a closer look, though. - */ - - /* Set our interrupt handler with the core CPU. */ -/* if (request_irq(CPM_INTERRUPT, cpm_interrupt, 0, "cpm", NULL) != 0) */ -/* panic("Could not allocate CPM IRQ!"); */ - - /* Install our own error handler. - */ - /* I think we want to hold off on this one for the moment - mles */ - /* cpm_install_handler(CPMVEC_ERROR, cpm_error_interrupt, NULL); */ - - /* master CPM interrupt enable */ - /* pquicc->intr_cicr |= CICR_IEN; */ /* no such animal for 360 */ -} - - - -/* CPM interrupt controller interrupt. -*/ -static void -cpm_interrupt(int irq, void * dev, struct pt_regs * regs) -{ - /* uint vec; */ - - /* mles: Note that this stuff is currently being performed by - * M68360_do_irq(int vec, struct pt_regs *fp), in ../ints.c */ - - /* figure out the vector */ - /* call that vector's handler */ - /* clear the irq's bit in the service register */ - -#if 0 /* old 860 stuff: */ - /* Get the vector by setting the ACK bit and then reading - * the register. - */ - ((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr = 1; - vec = ((volatile immap_t *)IMAP_ADDR)->im_cpic.cpic_civr; - vec >>= 11; - - - if (cpm_vecs[vec].handler != 0) - (*cpm_vecs[vec].handler)(cpm_vecs[vec].dev_id); - else - ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr &= ~(1 << vec); - - /* After servicing the interrupt, we have to remove the status - * indicator. - */ - ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cisr |= (1 << vec); -#endif - -} - -/* The CPM can generate the error interrupt when there is a race condition - * between generating and masking interrupts. All we have to do is ACK it - * and return. This is a no-op function so we don't need any special - * tests in the interrupt handler. - */ -static void -cpm_error_interrupt(void *dev) -{ -} - -/* Install a CPM interrupt handler. -*/ -void -cpm_install_handler(int vec, void (*handler)(), void *dev_id) -{ - - request_irq(vec, handler, 0, "timer", dev_id); - -/* if (cpm_vecs[vec].handler != 0) */ -/* printk(KERN_INFO "CPM interrupt %x replacing %x\n", */ -/* (uint)handler, (uint)cpm_vecs[vec].handler); */ -/* cpm_vecs[vec].handler = handler; */ -/* cpm_vecs[vec].dev_id = dev_id; */ - - /* ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr |= (1 << vec); */ -/* pquicc->intr_cimr |= (1 << vec); */ - -} - -/* Free a CPM interrupt handler. -*/ -void -cpm_free_handler(int vec) -{ - cpm_vecs[vec].handler = NULL; - cpm_vecs[vec].dev_id = NULL; - /* ((immap_t *)IMAP_ADDR)->im_cpic.cpic_cimr &= ~(1 << vec); */ - pquicc->intr_cimr &= ~(1 << vec); -} - - - - -/* Allocate some memory from the dual ported ram. We may want to - * enforce alignment restrictions, but right now everyone is a good - * citizen. - */ -uint -m360_cpm_dpalloc(uint size) -{ - uint retloc; - - if ((dp_alloc_base + size) >= dp_alloc_top) - return(CPM_DP_NOSPACE); - - retloc = dp_alloc_base; - dp_alloc_base += size; - - return(retloc); -} - - -#if 0 /* mleslie - for now these are simply kmalloc'd */ -/* We also own one page of host buffer space for the allocation of - * UART "fifos" and the like. - */ -uint -m360_cpm_hostalloc(uint size) -{ - uint retloc; - - if ((host_buffer + size) >= host_end) - return(0); - - retloc = host_buffer; - host_buffer += size; - - return(retloc); -} -#endif - - -/* Set a baud rate generator. This needs lots of work. There are - * four BRGs, any of which can be wired to any channel. - * The internal baud rate clock is the system clock divided by 16. - * This assumes the baudrate is 16x oversampled by the uart. - */ -/* #define BRG_INT_CLK (((bd_t *)__res)->bi_intfreq * 1000000) */ -#define BRG_INT_CLK system_clock -#define BRG_UART_CLK (BRG_INT_CLK/16) - -void -m360_cpm_setbrg(uint brg, uint rate) -{ - volatile uint *bp; - - /* This is good enough to get SMCs running..... - */ - /* bp = (uint *)&cpmp->cp_brgc1; */ - bp = (volatile uint *)(&pquicc->brgc[0].l); - bp += brg; - *bp = ((BRG_UART_CLK / rate - 1) << 1) | CPM_BRG_EN; -} - - -/* - * Local variables: - * c-indent-level: 4 - * c-basic-offset: 4 - * tab-width: 4 - * End: - */ diff --git a/arch/m68knommu/platform/68360/config.c b/arch/m68knommu/platform/68360/config.c deleted file mode 100644 index 9dd5bca38749..000000000000 --- a/arch/m68knommu/platform/68360/config.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * linux/arch/m68knommu/platform/68360/config.c - * - * Copyright (c) 2000 Michael Leslie <mleslie@lineo.com> - * Copyright (C) 1993 Hamish Macdonald - * Copyright (C) 1999 D. Jeff Dionne <jeff@uclinux.org> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <stdarg.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/irq.h> - -#include <asm/setup.h> -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/machdep.h> -#include <asm/m68360.h> - -#ifdef CONFIG_UCQUICC -#include <asm/bootstd.h> -#endif - -extern void m360_cpm_reset(void); - -// Mask to select if the PLL prescaler is enabled. -#define MCU_PREEN ((unsigned short)(0x0001 << 13)) - -#if defined(CONFIG_UCQUICC) -#define OSCILLATOR (unsigned long int)33000000 -#endif - -unsigned long int system_clock; - -extern QUICC *pquicc; - -/* TODO DON"T Hard Code this */ -/* calculate properly using the right PLL and prescaller */ -// unsigned int system_clock = 33000000l; -extern unsigned long int system_clock; //In kernel setup.c - - -static irqreturn_t hw_tick(int irq, void *dummy) -{ - /* Reset Timer1 */ - /* TSTAT &= 0; */ - - pquicc->timer_ter1 = 0x0002; /* clear timer event */ - - return arch_timer_interrupt(irq, dummy); -} - -static struct irqaction m68360_timer_irq = { - .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = hw_tick, -}; - -void hw_timer_init(void) -{ - unsigned char prescaler; - unsigned short tgcr_save; - -#if 0 - /* Restart mode, Enable int, 32KHz, Enable timer */ - TCTL = TCTL_OM | TCTL_IRQEN | TCTL_CLKSOURCE_32KHZ | TCTL_TEN; - /* Set prescaler (Divide 32KHz by 32)*/ - TPRER = 31; - /* Set compare register 32Khz / 32 / 10 = 100 */ - TCMP = 10; - - request_irq(IRQ_MACHSPEC | 1, timer_routine, 0, "timer", NULL); -#endif - - /* General purpose quicc timers: MC68360UM p7-20 */ - - /* Set up timer 1 (in [1..4]) to do 100Hz */ - tgcr_save = pquicc->timer_tgcr & 0xfff0; - pquicc->timer_tgcr = tgcr_save; /* stop and reset timer 1 */ - /* pquicc->timer_tgcr |= 0x4444; */ /* halt timers when FREEZE (ie bdm freeze) */ - - prescaler = 8; - pquicc->timer_tmr1 = 0x001a | /* or=1, frr=1, iclk=01b */ - (unsigned short)((prescaler - 1) << 8); - - pquicc->timer_tcn1 = 0x0000; /* initial count */ - /* calculate interval for 100Hz based on the _system_clock: */ - pquicc->timer_trr1 = (system_clock/ prescaler) / HZ; /* reference count */ - - pquicc->timer_ter1 = 0x0003; /* clear timer events */ - - /* enable timer 1 interrupt in CIMR */ - setup_irq(CPMVEC_TIMER1, &m68360_timer_irq); - - /* Start timer 1: */ - tgcr_save = (pquicc->timer_tgcr & 0xfff0) | 0x0001; - pquicc->timer_tgcr = tgcr_save; -} - -void BSP_gettod (int *yearp, int *monp, int *dayp, - int *hourp, int *minp, int *secp) -{ -} - -int BSP_set_clock_mmss(unsigned long nowtime) -{ -#if 0 - short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; - - tod->second1 = real_seconds / 10; - tod->second2 = real_seconds % 10; - tod->minute1 = real_minutes / 10; - tod->minute2 = real_minutes % 10; -#endif - return 0; -} - -void BSP_reset (void) -{ - local_irq_disable(); - asm volatile ( - "moveal #_start, %a0;\n" - "moveb #0, 0xFFFFF300;\n" - "moveal 0(%a0), %sp;\n" - "moveal 4(%a0), %a0;\n" - "jmp (%a0);\n" - ); -} - -unsigned char *scc1_hwaddr; -static int errno; - -#if defined (CONFIG_UCQUICC) -_bsc0(char *, getserialnum) -_bsc1(unsigned char *, gethwaddr, int, a) -_bsc1(char *, getbenv, char *, a) -#endif - - -void config_BSP(char *command, int len) -{ - unsigned char *p; - - m360_cpm_reset(); - - /* Calculate the real system clock value. */ - { - unsigned int local_pllcr = (unsigned int)(pquicc->sim_pllcr); - if( local_pllcr & MCU_PREEN ) // If the prescaler is dividing by 128 - { - int mf = (int)(pquicc->sim_pllcr & 0x0fff); - system_clock = (OSCILLATOR / 128) * (mf + 1); - } - else - { - int mf = (int)(pquicc->sim_pllcr & 0x0fff); - system_clock = (OSCILLATOR) * (mf + 1); - } - } - - printk(KERN_INFO "\n68360 QUICC support (C) 2000 Lineo Inc.\n"); - -#if defined(CONFIG_UCQUICC) && 0 - printk(KERN_INFO "uCquicc serial string [%s]\n",getserialnum()); - p = scc1_hwaddr = gethwaddr(0); - printk(KERN_INFO "uCquicc hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", - p[0], p[1], p[2], p[3], p[4], p[5]); - - p = getbenv("APPEND"); - if (p) - strcpy(p,command); - else - command[0] = 0; -#else - scc1_hwaddr = "\00\01\02\03\04\05"; -#endif - - mach_gettod = BSP_gettod; - mach_reset = BSP_reset; -} diff --git a/arch/m68knommu/platform/68360/entry.S b/arch/m68knommu/platform/68360/entry.S deleted file mode 100644 index 46c1b18c9dcb..000000000000 --- a/arch/m68knommu/platform/68360/entry.S +++ /dev/null @@ -1,184 +0,0 @@ -/* - * linux/arch/m68knommu/platform/68360/entry.S - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 2001 SED Systems, a Division of Calian Ltd. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file README.legal in the main directory of this archive - * for more details. - * - * Linux/m68k support by Hamish Macdonald - * M68360 Port by SED Systems, and Lineo. - */ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/thread_info.h> -#include <asm/unistd.h> -#include <asm/errno.h> -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/traps.h> -#include <asm/asm-offsets.h> -#include <asm/entry.h> - -.text - -.globl system_call -.globl resume -.globl ret_from_exception -.globl ret_from_signal -.globl sys_call_table -.globl ret_from_interrupt -.globl bad_interrupt -.globl inthandler - -badsys: - movel #-ENOSYS,%sp@(PT_OFF_D0) - jra ret_from_exception - -do_trace: - movel #-ENOSYS,%sp@(PT_OFF_D0) /* needed for strace*/ - subql #4,%sp - SAVE_SWITCH_STACK - jbsr syscall_trace_enter - RESTORE_SWITCH_STACK - addql #4,%sp - movel %sp@(PT_OFF_ORIG_D0),%d1 - movel #-ENOSYS,%d0 - cmpl #NR_syscalls,%d1 - jcc 1f - lsl #2,%d1 - lea sys_call_table, %a0 - jbsr %a0@(%d1) - -1: movel %d0,%sp@(PT_OFF_D0) /* save the return value */ - subql #4,%sp /* dummy return address */ - SAVE_SWITCH_STACK - jbsr syscall_trace_leave - -ret_from_signal: - RESTORE_SWITCH_STACK - addql #4,%sp - jra ret_from_exception - -ENTRY(system_call) - SAVE_ALL - - /* save top of frame*/ - pea %sp@ - jbsr set_esp0 - addql #4,%sp - - movel %sp@(PT_OFF_ORIG_D0),%d0 - - movel %sp,%d1 /* get thread_info pointer */ - andl #-THREAD_SIZE,%d1 - movel %d1,%a2 - btst #(TIF_SYSCALL_TRACE%8),%a2@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) - jne do_trace - cmpl #NR_syscalls,%d0 - jcc badsys - lsl #2,%d0 - lea sys_call_table,%a0 - movel %a0@(%d0), %a0 - jbsr %a0@ - movel %d0,%sp@(PT_OFF_D0) /* save the return value*/ - -ret_from_exception: - btst #5,%sp@(PT_OFF_SR) /* check if returning to kernel*/ - jeq Luser_return /* if so, skip resched, signals*/ - -Lkernel_return: - RESTORE_ALL - -Luser_return: - /* only allow interrupts when we are really the last one on the*/ - /* kernel stack, otherwise stack overflow can occur during*/ - /* heavy interrupt load*/ - andw #ALLOWINT,%sr - - movel %sp,%d1 /* get thread_info pointer */ - andl #-THREAD_SIZE,%d1 - movel %d1,%a2 -1: - move %a2@(TI_FLAGS),%d1 /* thread_info->flags */ - jne Lwork_to_do - RESTORE_ALL - -Lwork_to_do: - movel %a2@(TI_FLAGS),%d1 /* thread_info->flags */ - btst #TIF_NEED_RESCHED,%d1 - jne reschedule - -Lsignal_return: - subql #4,%sp /* dummy return address*/ - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - bsrw do_signal - addql #4,%sp - RESTORE_SWITCH_STACK - addql #4,%sp - jra 1b - -/* - * This is the main interrupt handler, responsible for calling do_IRQ() - */ -inthandler: - SAVE_ALL - movew %sp@(PT_OFF_FORMATVEC), %d0 - and.l #0x3ff, %d0 - lsr.l #0x02, %d0 - - movel %sp,%sp@- - movel %d0,%sp@- /* put vector # on stack*/ - jbsr do_IRQ /* process the IRQ*/ -3: addql #8,%sp /* pop parameters off stack*/ - bra ret_from_interrupt - -ret_from_interrupt: - jeq 1f -2: - RESTORE_ALL -1: - moveb %sp@(PT_OFF_SR), %d0 - and #7, %d0 - jhi 2b - /* check if we need to do software interrupts */ - - movel irq_stat+CPUSTAT_SOFTIRQ_PENDING,%d0 - jeq ret_from_exception - - pea ret_from_exception - jra do_softirq - - -/* - * Handler for uninitialized and spurious interrupts. - */ -bad_interrupt: - addql #1,num_spurious - rte - -/* - * Beware - when entering resume, prev (the current task) is - * in a0, next (the new task) is in a1,so don't change these - * registers until their contents are no longer needed. - */ -ENTRY(resume) - movel %a0,%d1 /* save prev thread in d1 */ - movew %sr,%a0@(TASK_THREAD+THREAD_SR) /* save sr */ - movel %usp,%a2 /* save usp */ - movel %a2,%a0@(TASK_THREAD+THREAD_USP) - - SAVE_SWITCH_STACK - movel %sp,%a0@(TASK_THREAD+THREAD_KSP) /* save kernel stack */ - movel %a1@(TASK_THREAD+THREAD_KSP),%sp /* restore new thread stack */ - RESTORE_SWITCH_STACK - - movel %a1@(TASK_THREAD+THREAD_USP),%a0 /* restore user stack */ - movel %a0,%usp - movew %a1@(TASK_THREAD+THREAD_SR),%sr /* restore thread status reg */ - rts - diff --git a/arch/m68knommu/platform/68360/head-ram.S b/arch/m68knommu/platform/68360/head-ram.S deleted file mode 100644 index 8eb94fb6b971..000000000000 --- a/arch/m68knommu/platform/68360/head-ram.S +++ /dev/null @@ -1,403 +0,0 @@ -/* arch/m68knommu/platform/68360/head-ram.S - * - * Startup code for Motorola 68360 - * - * Copyright 2001 (C) SED Systems, a Division of Calian Ltd. - * Based on: arch/m68knommu/platform/68328/pilot/crt0_rom.S - * Based on: arch/m68knommu/platform/68360/uCquicc/crt0_rom.S, 2.0.38.1.pre7 - * uClinux Kernel - * Copyright (C) Michael Leslie <mleslie@lineo.com> - * Based on: arch/m68knommu/platform/68EZ328/ucsimm/crt0_rom.S - * Copyright (C) 1998 D. Jeff Dionne <jeff@uclinux.org>, - * - */ -#define ASSEMBLY - -.global _stext -.global _start - -.global _rambase -.global _ramvec -.global _ramstart -.global _ramend - -.global _quicc_base -.global _periph_base - -#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE) -#define ROMEND (CONFIG_ROMBASE + CONFIG_ROMSIZE) - -#define REGB 0x1000 -#define PEPAR (_dprbase + REGB + 0x0016) -#define GMR (_dprbase + REGB + 0x0040) -#define OR0 (_dprbase + REGB + 0x0054) -#define BR0 (_dprbase + REGB + 0x0050) -#define OR1 (_dprbase + REGB + 0x0064) -#define BR1 (_dprbase + REGB + 0x0060) -#define OR4 (_dprbase + REGB + 0x0094) -#define BR4 (_dprbase + REGB + 0x0090) -#define OR6 (_dprbase + REGB + 0x00b4) -#define BR6 (_dprbase + REGB + 0x00b0) -#define OR7 (_dprbase + REGB + 0x00c4) -#define BR7 (_dprbase + REGB + 0x00c0) - -#define MCR (_dprbase + REGB + 0x0000) -#define AVR (_dprbase + REGB + 0x0008) - -#define SYPCR (_dprbase + REGB + 0x0022) - -#define PLLCR (_dprbase + REGB + 0x0010) -#define CLKOCR (_dprbase + REGB + 0x000C) -#define CDVCR (_dprbase + REGB + 0x0014) - -#define BKAR (_dprbase + REGB + 0x0030) -#define BKCR (_dprbase + REGB + 0x0034) -#define SWIV (_dprbase + REGB + 0x0023) -#define PICR (_dprbase + REGB + 0x0026) -#define PITR (_dprbase + REGB + 0x002A) - -/* Define for all memory configuration */ -#define MCU_SIM_GMR 0x00000000 -#define SIM_OR_MASK 0x0fffffff - -/* Defines for chip select zero - the flash */ -#define SIM_OR0_MASK 0x20000002 -#define SIM_BR0_MASK 0x00000001 - - -/* Defines for chip select one - the RAM */ -#define SIM_OR1_MASK 0x10000000 -#define SIM_BR1_MASK 0x00000001 - -#define MCU_SIM_MBAR_ADRS 0x0003ff00 -#define MCU_SIM_MBAR_BA_MASK 0xfffff000 -#define MCU_SIM_MBAR_AS_MASK 0x00000001 - -#define MCU_SIM_PEPAR 0x00B4 - -#define MCU_DISABLE_INTRPTS 0x2700 -#define MCU_SIM_AVR 0x00 - -#define MCU_SIM_MCR 0x00005cff - -#define MCU_SIM_CLKOCR 0x00 -#define MCU_SIM_PLLCR 0x8000 -#define MCU_SIM_CDVCR 0x0000 - -#define MCU_SIM_SYPCR 0x0000 -#define MCU_SIM_SWIV 0x00 -#define MCU_SIM_PICR 0x0000 -#define MCU_SIM_PITR 0x0000 - - -#include <asm/m68360_regs.h> - - -/* - * By the time this RAM specific code begins to execute, DPRAM - * and DRAM should already be mapped and accessible. - */ - - .text -_start: -_stext: - nop - ori.w #MCU_DISABLE_INTRPTS, %sr /* disable interrupts: */ - /* We should not need to setup the boot stack the reset should do it. */ - movea.l #RAMEND, %sp /*set up stack at the end of DRAM:*/ - -set_mbar_register: - moveq.l #0x07, %d1 /* Setup MBAR */ - movec %d1, %dfc - - lea.l MCU_SIM_MBAR_ADRS, %a0 - move.l #_dprbase, %d0 - andi.l #MCU_SIM_MBAR_BA_MASK, %d0 - ori.l #MCU_SIM_MBAR_AS_MASK, %d0 - moves.l %d0, %a0@ - - moveq.l #0x05, %d1 - movec.l %d1, %dfc - - /* Now we can begin to access registers in DPRAM */ - -set_sim_mcr: - /* Set Module Configuration Register */ - move.l #MCU_SIM_MCR, MCR - - /* to do: Determine cause of reset */ - - /* - * configure system clock MC68360 p. 6-40 - * (value +1)*osc/128 = system clock - */ -set_sim_clock: - move.w #MCU_SIM_PLLCR, PLLCR - move.b #MCU_SIM_CLKOCR, CLKOCR - move.w #MCU_SIM_CDVCR, CDVCR - - /* Wait for the PLL to settle */ - move.w #16384, %d0 -pll_settle_wait: - subi.w #1, %d0 - bne pll_settle_wait - - /* Setup the system protection register, and watchdog timer register */ - move.b #MCU_SIM_SWIV, SWIV - move.w #MCU_SIM_PICR, PICR - move.w #MCU_SIM_PITR, PITR - move.w #MCU_SIM_SYPCR, SYPCR - - /* Clear DPRAM - system + parameter */ - movea.l #_dprbase, %a0 - movea.l #_dprbase+0x2000, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -clear_dpram: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi clear_dpram - -configure_memory_controller: - /* Set up Global Memory Register (GMR) */ - move.l #MCU_SIM_GMR, %d0 - move.l %d0, GMR - -configure_chip_select_0: - move.l #RAMEND, %d0 - subi.l #__ramstart, %d0 - subq.l #0x01, %d0 - eori.l #SIM_OR_MASK, %d0 - ori.l #SIM_OR0_MASK, %d0 - move.l %d0, OR0 - - move.l #__ramstart, %d0 - ori.l #SIM_BR0_MASK, %d0 - move.l %d0, BR0 - -configure_chip_select_1: - move.l #ROMEND, %d0 - subi.l #__rom_start, %d0 - subq.l #0x01, %d0 - eori.l #SIM_OR_MASK, %d0 - ori.l #SIM_OR1_MASK, %d0 - move.l %d0, OR1 - - move.l #__rom_start, %d0 - ori.l #SIM_BR1_MASK, %d0 - move.l %d0, BR1 - - move.w #MCU_SIM_PEPAR, PEPAR - - /* point to vector table: */ - move.l #_romvec, %a0 - move.l #_ramvec, %a1 -copy_vectors: - move.l %a0@, %d0 - move.l %d0, %a1@ - move.l %a0@, %a1@ - addq.l #0x04, %a0 - addq.l #0x04, %a1 - cmp.l #_start, %a0 - blt copy_vectors - - move.l #_ramvec, %a1 - movec %a1, %vbr - - - /* Copy data segment from ROM to RAM */ - moveal #_stext, %a0 - moveal #_sdata, %a1 - moveal #_edata, %a2 - - /* Copy %a0 to %a1 until %a1 == %a2 */ -LD1: - move.l %a0@, %d0 - addq.l #0x04, %a0 - move.l %d0, %a1@ - addq.l #0x04, %a1 - cmp.l #_edata, %a1 - blt LD1 - - moveal #_sbss, %a0 - moveal #_ebss, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -L1: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi L1 - -load_quicc: - move.l #_dprbase, _quicc_base - -store_ram_size: - /* Set ram size information */ - move.l #_sdata, _rambase - move.l #_ebss, _ramstart - move.l #RAMEND, %d0 - sub.l #0x1000, %d0 /* Reserve 4K for stack space.*/ - move.l %d0, _ramend /* Different from RAMEND.*/ - - pea 0 - pea env - pea %sp@(4) - pea 0 - - lea init_thread_union, %a2 - lea 0x2000(%a2), %sp - -lp: - jsr start_kernel - -_exit: - jmp _exit - - - .data - .align 4 -env: - .long 0 -_quicc_base: - .long 0 -_periph_base: - .long 0 -_ramvec: - .long 0 -_rambase: - .long 0 -_ramstart: - .long 0 -_ramend: - .long 0 -_dprbase: - .long 0xffffe000 - - .text - - /* - * These are the exception vectors at boot up, they are copied into RAM - * and then overwritten as needed. - */ - -.section ".data..initvect","awx" - .long RAMEND /* Reset: Initial Stack Pointer - 0. */ - .long _start /* Reset: Initial Program Counter - 1. */ - .long buserr /* Bus Error - 2. */ - .long trap /* Address Error - 3. */ - .long trap /* Illegal Instruction - 4. */ - .long trap /* Divide by zero - 5. */ - .long trap /* CHK, CHK2 Instructions - 6. */ - .long trap /* TRAPcc, TRAPV Instructions - 7. */ - .long trap /* Privilege Violation - 8. */ - .long trap /* Trace - 9. */ - .long trap /* Line 1010 Emulator - 10. */ - .long trap /* Line 1111 Emualtor - 11. */ - .long trap /* Harware Breakpoint - 12. */ - .long trap /* (Reserved for Coprocessor Protocol Violation)- 13. */ - .long trap /* Format Error - 14. */ - .long trap /* Uninitialized Interrupt - 15. */ - .long trap /* (Unassigned, Reserver) - 16. */ - .long trap /* (Unassigned, Reserver) - 17. */ - .long trap /* (Unassigned, Reserver) - 18. */ - .long trap /* (Unassigned, Reserver) - 19. */ - .long trap /* (Unassigned, Reserver) - 20. */ - .long trap /* (Unassigned, Reserver) - 21. */ - .long trap /* (Unassigned, Reserver) - 22. */ - .long trap /* (Unassigned, Reserver) - 23. */ - .long trap /* Spurious Interrupt - 24. */ - .long trap /* Level 1 Interrupt Autovector - 25. */ - .long trap /* Level 2 Interrupt Autovector - 26. */ - .long trap /* Level 3 Interrupt Autovector - 27. */ - .long trap /* Level 4 Interrupt Autovector - 28. */ - .long trap /* Level 5 Interrupt Autovector - 29. */ - .long trap /* Level 6 Interrupt Autovector - 30. */ - .long trap /* Level 7 Interrupt Autovector - 31. */ - .long system_call /* Trap Instruction Vectors 0 - 32. */ - .long trap /* Trap Instruction Vectors 1 - 33. */ - .long trap /* Trap Instruction Vectors 2 - 34. */ - .long trap /* Trap Instruction Vectors 3 - 35. */ - .long trap /* Trap Instruction Vectors 4 - 36. */ - .long trap /* Trap Instruction Vectors 5 - 37. */ - .long trap /* Trap Instruction Vectors 6 - 38. */ - .long trap /* Trap Instruction Vectors 7 - 39. */ - .long trap /* Trap Instruction Vectors 8 - 40. */ - .long trap /* Trap Instruction Vectors 9 - 41. */ - .long trap /* Trap Instruction Vectors 10 - 42. */ - .long trap /* Trap Instruction Vectors 11 - 43. */ - .long trap /* Trap Instruction Vectors 12 - 44. */ - .long trap /* Trap Instruction Vectors 13 - 45. */ - .long trap /* Trap Instruction Vectors 14 - 46. */ - .long trap /* Trap Instruction Vectors 15 - 47. */ - .long 0 /* (Reserved for Coprocessor) - 48. */ - .long 0 /* (Reserved for Coprocessor) - 49. */ - .long 0 /* (Reserved for Coprocessor) - 50. */ - .long 0 /* (Reserved for Coprocessor) - 51. */ - .long 0 /* (Reserved for Coprocessor) - 52. */ - .long 0 /* (Reserved for Coprocessor) - 53. */ - .long 0 /* (Reserved for Coprocessor) - 54. */ - .long 0 /* (Reserved for Coprocessor) - 55. */ - .long 0 /* (Reserved for Coprocessor) - 56. */ - .long 0 /* (Reserved for Coprocessor) - 57. */ - .long 0 /* (Reserved for Coprocessor) - 58. */ - .long 0 /* (Unassigned, Reserved) - 59. */ - .long 0 /* (Unassigned, Reserved) - 60. */ - .long 0 /* (Unassigned, Reserved) - 61. */ - .long 0 /* (Unassigned, Reserved) - 62. */ - .long 0 /* (Unassigned, Reserved) - 63. */ - /* The assignment of these vectors to the CPM is */ - /* dependent on the configuration of the CPM vba */ - /* fields. */ - .long 0 /* (User-Defined Vectors 1) CPM Error - 64. */ - .long 0 /* (User-Defined Vectors 2) CPM Parallel IO PC11- 65. */ - .long 0 /* (User-Defined Vectors 3) CPM Parallel IO PC10- 66. */ - .long 0 /* (User-Defined Vectors 4) CPM SMC2 / PIP - 67. */ - .long 0 /* (User-Defined Vectors 5) CPM SMC1 - 68. */ - .long 0 /* (User-Defined Vectors 6) CPM SPI - 69. */ - .long 0 /* (User-Defined Vectors 7) CPM Parallel IO PC9 - 70. */ - .long 0 /* (User-Defined Vectors 8) CPM Timer 4 - 71. */ - .long 0 /* (User-Defined Vectors 9) CPM Reserved - 72. */ - .long 0 /* (User-Defined Vectors 10) CPM Parallel IO PC8- 73. */ - .long 0 /* (User-Defined Vectors 11) CPM Parallel IO PC7- 74. */ - .long 0 /* (User-Defined Vectors 12) CPM Parallel IO PC6- 75. */ - .long 0 /* (User-Defined Vectors 13) CPM Timer 3 - 76. */ - .long 0 /* (User-Defined Vectors 14) CPM Reserved - 77. */ - .long 0 /* (User-Defined Vectors 15) CPM Parallel IO PC5- 78. */ - .long 0 /* (User-Defined Vectors 16) CPM Parallel IO PC4- 79. */ - .long 0 /* (User-Defined Vectors 17) CPM Reserved - 80. */ - .long 0 /* (User-Defined Vectors 18) CPM RISC Timer Tbl - 81. */ - .long 0 /* (User-Defined Vectors 19) CPM Timer 2 - 82. */ - .long 0 /* (User-Defined Vectors 21) CPM Reserved - 83. */ - .long 0 /* (User-Defined Vectors 22) CPM IDMA2 - 84. */ - .long 0 /* (User-Defined Vectors 23) CPM IDMA1 - 85. */ - .long 0 /* (User-Defined Vectors 24) CPM SDMA Bus Err - 86. */ - .long 0 /* (User-Defined Vectors 25) CPM Parallel IO PC3- 87. */ - .long 0 /* (User-Defined Vectors 26) CPM Parallel IO PC2- 88. */ - .long 0 /* (User-Defined Vectors 27) CPM Timer 1 - 89. */ - .long 0 /* (User-Defined Vectors 28) CPM Parallel IO PC1- 90. */ - .long 0 /* (User-Defined Vectors 29) CPM SCC 4 - 91. */ - .long 0 /* (User-Defined Vectors 30) CPM SCC 3 - 92. */ - .long 0 /* (User-Defined Vectors 31) CPM SCC 2 - 93. */ - .long 0 /* (User-Defined Vectors 32) CPM SCC 1 - 94. */ - .long 0 /* (User-Defined Vectors 33) CPM Parallel IO PC0- 95. */ - /* I don't think anything uses the vectors after here. */ - .long 0 /* (User-Defined Vectors 34) - 96. */ - .long 0,0,0,0,0 /* (User-Defined Vectors 35 - 39). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 40 - 49). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 50 - 59). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 60 - 69). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 70 - 79). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 80 - 89). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 90 - 99). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 100 - 109). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 110 - 119). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 120 - 129). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 130 - 139). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 140 - 149). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 150 - 159). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 160 - 169). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 170 - 179). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 180 - 189). */ - .long 0,0,0 /* (User-Defined Vectors 190 - 192). */ -.text -ignore: rte diff --git a/arch/m68knommu/platform/68360/head-rom.S b/arch/m68knommu/platform/68360/head-rom.S deleted file mode 100644 index 97510e55b802..000000000000 --- a/arch/m68knommu/platform/68360/head-rom.S +++ /dev/null @@ -1,414 +0,0 @@ -/* arch/m68knommu/platform/68360/head-rom.S - * - * Startup code for Motorola 68360 - * - * Copyright (C) SED Systems, a Division of Calian Ltd. - * Based on: arch/m68knommu/platform/68328/pilot/crt0_rom.S - * Based on: arch/m68knommu/platform/68360/uCquicc/crt0_rom.S, 2.0.38.1.pre7 - * uClinux Kernel - * Copyright (C) Michael Leslie <mleslie@lineo.com> - * Based on: arch/m68knommu/platform/68EZ328/ucsimm/crt0_rom.S - * Copyright (C) 1998 D. Jeff Dionne <jeff@uclinux.org>, - * - */ - -.global _stext -.global _sbss -.global _start - -.global _rambase -.global _ramvec -.global _ramstart -.global _ramend - -.global _quicc_base -.global _periph_base - -#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE) - -#define REGB 0x1000 -#define PEPAR (_dprbase + REGB + 0x0016) -#define GMR (_dprbase + REGB + 0x0040) -#define OR0 (_dprbase + REGB + 0x0054) -#define BR0 (_dprbase + REGB + 0x0050) - -#define OR1 (_dprbase + REGB + 0x0064) -#define BR1 (_dprbase + REGB + 0x0060) - -#define OR2 (_dprbase + REGB + 0x0074) -#define BR2 (_dprbase + REGB + 0x0070) - -#define OR3 (_dprbase + REGB + 0x0084) -#define BR3 (_dprbase + REGB + 0x0080) - -#define OR4 (_dprbase + REGB + 0x0094) -#define BR4 (_dprbase + REGB + 0x0090) - -#define OR5 (_dprbase + REGB + 0x00A4) -#define BR5 (_dprbase + REGB + 0x00A0) - -#define OR6 (_dprbase + REGB + 0x00b4) -#define BR6 (_dprbase + REGB + 0x00b0) - -#define OR7 (_dprbase + REGB + 0x00c4) -#define BR7 (_dprbase + REGB + 0x00c0) - -#define MCR (_dprbase + REGB + 0x0000) -#define AVR (_dprbase + REGB + 0x0008) - -#define SYPCR (_dprbase + REGB + 0x0022) - -#define PLLCR (_dprbase + REGB + 0x0010) -#define CLKOCR (_dprbase + REGB + 0x000C) -#define CDVCR (_dprbase + REGB + 0x0014) - -#define BKAR (_dprbase + REGB + 0x0030) -#define BKCR (_dprbase + REGB + 0x0034) -#define SWIV (_dprbase + REGB + 0x0023) -#define PICR (_dprbase + REGB + 0x0026) -#define PITR (_dprbase + REGB + 0x002A) - -/* Define for all memory configuration */ -#define MCU_SIM_GMR 0x00000000 -#define SIM_OR_MASK 0x0fffffff - -/* Defines for chip select zero - the flash */ -#define SIM_OR0_MASK 0x20000000 -#define SIM_BR0_MASK 0x00000001 - -/* Defines for chip select one - the RAM */ -#define SIM_OR1_MASK 0x10000000 -#define SIM_BR1_MASK 0x00000001 - -#define MCU_SIM_MBAR_ADRS 0x0003ff00 -#define MCU_SIM_MBAR_BA_MASK 0xfffff000 -#define MCU_SIM_MBAR_AS_MASK 0x00000001 - -#define MCU_SIM_PEPAR 0x00B4 - -#define MCU_DISABLE_INTRPTS 0x2700 -#define MCU_SIM_AVR 0x00 - -#define MCU_SIM_MCR 0x00005cff - -#define MCU_SIM_CLKOCR 0x00 -#define MCU_SIM_PLLCR 0x8000 -#define MCU_SIM_CDVCR 0x0000 - -#define MCU_SIM_SYPCR 0x0000 -#define MCU_SIM_SWIV 0x00 -#define MCU_SIM_PICR 0x0000 -#define MCU_SIM_PITR 0x0000 - - -#include <asm/m68360_regs.h> - - -/* - * By the time this RAM specific code begins to execute, DPRAM - * and DRAM should already be mapped and accessible. - */ - - .text -_start: -_stext: - nop - ori.w #MCU_DISABLE_INTRPTS, %sr /* disable interrupts: */ - /* We should not need to setup the boot stack the reset should do it. */ - movea.l #RAMEND, %sp /* set up stack at the end of DRAM:*/ - - -set_mbar_register: - moveq.l #0x07, %d1 /* Setup MBAR */ - movec %d1, %dfc - - lea.l MCU_SIM_MBAR_ADRS, %a0 - move.l #_dprbase, %d0 - andi.l #MCU_SIM_MBAR_BA_MASK, %d0 - ori.l #MCU_SIM_MBAR_AS_MASK, %d0 - moves.l %d0, %a0@ - - moveq.l #0x05, %d1 - movec.l %d1, %dfc - - /* Now we can begin to access registers in DPRAM */ - -set_sim_mcr: - /* Set Module Configuration Register */ - move.l #MCU_SIM_MCR, MCR - - /* to do: Determine cause of reset */ - - /* - * configure system clock MC68360 p. 6-40 - * (value +1)*osc/128 = system clock - * or - * (value + 1)*osc = system clock - * You do not need to divide the oscillator by 128 unless you want to. - */ -set_sim_clock: - move.w #MCU_SIM_PLLCR, PLLCR - move.b #MCU_SIM_CLKOCR, CLKOCR - move.w #MCU_SIM_CDVCR, CDVCR - - /* Wait for the PLL to settle */ - move.w #16384, %d0 -pll_settle_wait: - subi.w #1, %d0 - bne pll_settle_wait - - /* Setup the system protection register, and watchdog timer register */ - move.b #MCU_SIM_SWIV, SWIV - move.w #MCU_SIM_PICR, PICR - move.w #MCU_SIM_PITR, PITR - move.w #MCU_SIM_SYPCR, SYPCR - - /* Clear DPRAM - system + parameter */ - movea.l #_dprbase, %a0 - movea.l #_dprbase+0x2000, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -clear_dpram: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi clear_dpram - -configure_memory_controller: - /* Set up Global Memory Register (GMR) */ - move.l #MCU_SIM_GMR, %d0 - move.l %d0, GMR - -configure_chip_select_0: - move.l #0x00400000, %d0 - subq.l #0x01, %d0 - eori.l #SIM_OR_MASK, %d0 - ori.l #SIM_OR0_MASK, %d0 - move.l %d0, OR0 - - move.l #__rom_start, %d0 - ori.l #SIM_BR0_MASK, %d0 - move.l %d0, BR0 - - move.l #0x0, BR1 - move.l #0x0, BR2 - move.l #0x0, BR3 - move.l #0x0, BR4 - move.l #0x0, BR5 - move.l #0x0, BR6 - move.l #0x0, BR7 - - move.w #MCU_SIM_PEPAR, PEPAR - - /* point to vector table: */ - move.l #_romvec, %a0 - move.l #_ramvec, %a1 -copy_vectors: - move.l %a0@, %d0 - move.l %d0, %a1@ - move.l %a0@, %a1@ - addq.l #0x04, %a0 - addq.l #0x04, %a1 - cmp.l #_start, %a0 - blt copy_vectors - - move.l #_ramvec, %a1 - movec %a1, %vbr - - - /* Copy data segment from ROM to RAM */ - moveal #_etext, %a0 - moveal #_sdata, %a1 - moveal #_edata, %a2 - - /* Copy %a0 to %a1 until %a1 == %a2 */ -LD1: - move.l %a0@, %d0 - addq.l #0x04, %a0 - move.l %d0, %a1@ - addq.l #0x04, %a1 - cmp.l #_edata, %a1 - blt LD1 - - moveal #_sbss, %a0 - moveal #_ebss, %a1 - - /* Copy 0 to %a0 until %a0 == %a1 */ -L1: - movel #0, %a0@+ - cmpal %a0, %a1 - bhi L1 - -load_quicc: - move.l #_dprbase, _quicc_base - -store_ram_size: - /* Set ram size information */ - move.l #_sdata, _rambase - move.l #_ebss, _ramstart - move.l #RAMEND, %d0 - sub.l #0x1000, %d0 /* Reserve 4K for stack space.*/ - move.l %d0, _ramend /* Different from RAMEND.*/ - - pea 0 - pea env - pea %sp@(4) - pea 0 - - lea init_thread_union, %a2 - lea 0x2000(%a2), %sp - -lp: - jsr start_kernel - -_exit: - jmp _exit - - - .data - .align 4 -env: - .long 0 -_quicc_base: - .long 0 -_periph_base: - .long 0 -_ramvec: - .long 0 -_rambase: - .long 0 -_ramstart: - .long 0 -_ramend: - .long 0 -_dprbase: - .long 0xffffe000 - - - .text - - /* - * These are the exception vectors at boot up, they are copied into RAM - * and then overwritten as needed. - */ - -.section ".data..initvect","awx" - .long RAMEND /* Reset: Initial Stack Pointer - 0. */ - .long _start /* Reset: Initial Program Counter - 1. */ - .long buserr /* Bus Error - 2. */ - .long trap /* Address Error - 3. */ - .long trap /* Illegal Instruction - 4. */ - .long trap /* Divide by zero - 5. */ - .long trap /* CHK, CHK2 Instructions - 6. */ - .long trap /* TRAPcc, TRAPV Instructions - 7. */ - .long trap /* Privilege Violation - 8. */ - .long trap /* Trace - 9. */ - .long trap /* Line 1010 Emulator - 10. */ - .long trap /* Line 1111 Emualtor - 11. */ - .long trap /* Harware Breakpoint - 12. */ - .long trap /* (Reserved for Coprocessor Protocol Violation)- 13. */ - .long trap /* Format Error - 14. */ - .long trap /* Uninitialized Interrupt - 15. */ - .long trap /* (Unassigned, Reserver) - 16. */ - .long trap /* (Unassigned, Reserver) - 17. */ - .long trap /* (Unassigned, Reserver) - 18. */ - .long trap /* (Unassigned, Reserver) - 19. */ - .long trap /* (Unassigned, Reserver) - 20. */ - .long trap /* (Unassigned, Reserver) - 21. */ - .long trap /* (Unassigned, Reserver) - 22. */ - .long trap /* (Unassigned, Reserver) - 23. */ - .long trap /* Spurious Interrupt - 24. */ - .long trap /* Level 1 Interrupt Autovector - 25. */ - .long trap /* Level 2 Interrupt Autovector - 26. */ - .long trap /* Level 3 Interrupt Autovector - 27. */ - .long trap /* Level 4 Interrupt Autovector - 28. */ - .long trap /* Level 5 Interrupt Autovector - 29. */ - .long trap /* Level 6 Interrupt Autovector - 30. */ - .long trap /* Level 7 Interrupt Autovector - 31. */ - .long system_call /* Trap Instruction Vectors 0 - 32. */ - .long trap /* Trap Instruction Vectors 1 - 33. */ - .long trap /* Trap Instruction Vectors 2 - 34. */ - .long trap /* Trap Instruction Vectors 3 - 35. */ - .long trap /* Trap Instruction Vectors 4 - 36. */ - .long trap /* Trap Instruction Vectors 5 - 37. */ - .long trap /* Trap Instruction Vectors 6 - 38. */ - .long trap /* Trap Instruction Vectors 7 - 39. */ - .long trap /* Trap Instruction Vectors 8 - 40. */ - .long trap /* Trap Instruction Vectors 9 - 41. */ - .long trap /* Trap Instruction Vectors 10 - 42. */ - .long trap /* Trap Instruction Vectors 11 - 43. */ - .long trap /* Trap Instruction Vectors 12 - 44. */ - .long trap /* Trap Instruction Vectors 13 - 45. */ - .long trap /* Trap Instruction Vectors 14 - 46. */ - .long trap /* Trap Instruction Vectors 15 - 47. */ - .long 0 /* (Reserved for Coprocessor) - 48. */ - .long 0 /* (Reserved for Coprocessor) - 49. */ - .long 0 /* (Reserved for Coprocessor) - 50. */ - .long 0 /* (Reserved for Coprocessor) - 51. */ - .long 0 /* (Reserved for Coprocessor) - 52. */ - .long 0 /* (Reserved for Coprocessor) - 53. */ - .long 0 /* (Reserved for Coprocessor) - 54. */ - .long 0 /* (Reserved for Coprocessor) - 55. */ - .long 0 /* (Reserved for Coprocessor) - 56. */ - .long 0 /* (Reserved for Coprocessor) - 57. */ - .long 0 /* (Reserved for Coprocessor) - 58. */ - .long 0 /* (Unassigned, Reserved) - 59. */ - .long 0 /* (Unassigned, Reserved) - 60. */ - .long 0 /* (Unassigned, Reserved) - 61. */ - .long 0 /* (Unassigned, Reserved) - 62. */ - .long 0 /* (Unassigned, Reserved) - 63. */ - /* The assignment of these vectors to the CPM is */ - /* dependent on the configuration of the CPM vba */ - /* fields. */ - .long 0 /* (User-Defined Vectors 1) CPM Error - 64. */ - .long 0 /* (User-Defined Vectors 2) CPM Parallel IO PC11- 65. */ - .long 0 /* (User-Defined Vectors 3) CPM Parallel IO PC10- 66. */ - .long 0 /* (User-Defined Vectors 4) CPM SMC2 / PIP - 67. */ - .long 0 /* (User-Defined Vectors 5) CPM SMC1 - 68. */ - .long 0 /* (User-Defined Vectors 6) CPM SPI - 69. */ - .long 0 /* (User-Defined Vectors 7) CPM Parallel IO PC9 - 70. */ - .long 0 /* (User-Defined Vectors 8) CPM Timer 4 - 71. */ - .long 0 /* (User-Defined Vectors 9) CPM Reserved - 72. */ - .long 0 /* (User-Defined Vectors 10) CPM Parallel IO PC8- 73. */ - .long 0 /* (User-Defined Vectors 11) CPM Parallel IO PC7- 74. */ - .long 0 /* (User-Defined Vectors 12) CPM Parallel IO PC6- 75. */ - .long 0 /* (User-Defined Vectors 13) CPM Timer 3 - 76. */ - .long 0 /* (User-Defined Vectors 14) CPM Reserved - 77. */ - .long 0 /* (User-Defined Vectors 15) CPM Parallel IO PC5- 78. */ - .long 0 /* (User-Defined Vectors 16) CPM Parallel IO PC4- 79. */ - .long 0 /* (User-Defined Vectors 17) CPM Reserved - 80. */ - .long 0 /* (User-Defined Vectors 18) CPM RISC Timer Tbl - 81. */ - .long 0 /* (User-Defined Vectors 19) CPM Timer 2 - 82. */ - .long 0 /* (User-Defined Vectors 21) CPM Reserved - 83. */ - .long 0 /* (User-Defined Vectors 22) CPM IDMA2 - 84. */ - .long 0 /* (User-Defined Vectors 23) CPM IDMA1 - 85. */ - .long 0 /* (User-Defined Vectors 24) CPM SDMA Bus Err - 86. */ - .long 0 /* (User-Defined Vectors 25) CPM Parallel IO PC3- 87. */ - .long 0 /* (User-Defined Vectors 26) CPM Parallel IO PC2- 88. */ - .long 0 /* (User-Defined Vectors 27) CPM Timer 1 - 89. */ - .long 0 /* (User-Defined Vectors 28) CPM Parallel IO PC1- 90. */ - .long 0 /* (User-Defined Vectors 29) CPM SCC 4 - 91. */ - .long 0 /* (User-Defined Vectors 30) CPM SCC 3 - 92. */ - .long 0 /* (User-Defined Vectors 31) CPM SCC 2 - 93. */ - .long 0 /* (User-Defined Vectors 32) CPM SCC 1 - 94. */ - .long 0 /* (User-Defined Vectors 33) CPM Parallel IO PC0- 95. */ - /* I don't think anything uses the vectors after here. */ - .long 0 /* (User-Defined Vectors 34) - 96. */ - .long 0,0,0,0,0 /* (User-Defined Vectors 35 - 39). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 40 - 49). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 50 - 59). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 60 - 69). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 70 - 79). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 80 - 89). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 90 - 99). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 100 - 109). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 110 - 119). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 120 - 129). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 130 - 139). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 140 - 149). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 150 - 159). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 160 - 169). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 170 - 179). */ - .long 0,0,0,0,0,0,0,0,0,0 /* (User-Defined Vectors 180 - 189). */ - .long 0,0,0 /* (User-Defined Vectors 190 - 192). */ -.text -ignore: rte diff --git a/arch/m68knommu/platform/68360/ints.c b/arch/m68knommu/platform/68360/ints.c deleted file mode 100644 index 8de3feb568c6..000000000000 --- a/arch/m68knommu/platform/68360/ints.c +++ /dev/null @@ -1,139 +0,0 @@ -/* - * linux/arch/$(ARCH)/platform/$(PLATFORM)/ints.c - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * - * Copyright (c) 2000 Michael Leslie <mleslie@lineo.com> - * Copyright (c) 1996 Roman Zippel - * Copyright (c) 1999 D. Jeff Dionne <jeff@uclinux.org> - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <asm/traps.h> -#include <asm/machdep.h> -#include <asm/m68360.h> - -/* from quicc/commproc.c: */ -extern QUICC *pquicc; -extern void cpm_interrupt_init(void); - -#define INTERNAL_IRQS (96) - -/* assembler routines */ -asmlinkage void system_call(void); -asmlinkage void buserr(void); -asmlinkage void trap(void); -asmlinkage void bad_interrupt(void); -asmlinkage void inthandler(void); - -extern void *_ramvec[]; - -/* The number of spurious interrupts */ -volatile unsigned int num_spurious; - -static void intc_irq_unmask(struct irq_data *d) -{ - pquicc->intr_cimr |= (1 << d->irq); -} - -static void intc_irq_mask(struct irq_data *d) -{ - pquicc->intr_cimr &= ~(1 << d->irq); -} - -static void intc_irq_ack(struct irq_data *d) -{ - pquicc->intr_cisr = (1 << d->irq); -} - -static struct irq_chip intc_irq_chip = { - .name = "M68K-INTC", - .irq_mask = intc_irq_mask, - .irq_unmask = intc_irq_unmask, - .irq_ack = intc_irq_ack, -}; - -/* - * This function should be called during kernel startup to initialize - * the vector table. - */ -void init_IRQ(void) -{ - int i; - int vba = (CPM_VECTOR_BASE<<4); - - /* set up the vectors */ - _ramvec[2] = buserr; - _ramvec[3] = trap; - _ramvec[4] = trap; - _ramvec[5] = trap; - _ramvec[6] = trap; - _ramvec[7] = trap; - _ramvec[8] = trap; - _ramvec[9] = trap; - _ramvec[10] = trap; - _ramvec[11] = trap; - _ramvec[12] = trap; - _ramvec[13] = trap; - _ramvec[14] = trap; - _ramvec[15] = trap; - - _ramvec[32] = system_call; - _ramvec[33] = trap; - - cpm_interrupt_init(); - - /* set up CICR for vector base address and irq level */ - /* irl = 4, hp = 1f - see MC68360UM p 7-377 */ - pquicc->intr_cicr = 0x00e49f00 | vba; - - /* CPM interrupt vectors: (p 7-376) */ - _ramvec[vba+CPMVEC_ERROR] = bad_interrupt; /* Error */ - _ramvec[vba+CPMVEC_PIO_PC11] = inthandler; /* pio - pc11 */ - _ramvec[vba+CPMVEC_PIO_PC10] = inthandler; /* pio - pc10 */ - _ramvec[vba+CPMVEC_SMC2] = inthandler; /* smc2/pip */ - _ramvec[vba+CPMVEC_SMC1] = inthandler; /* smc1 */ - _ramvec[vba+CPMVEC_SPI] = inthandler; /* spi */ - _ramvec[vba+CPMVEC_PIO_PC9] = inthandler; /* pio - pc9 */ - _ramvec[vba+CPMVEC_TIMER4] = inthandler; /* timer 4 */ - _ramvec[vba+CPMVEC_RESERVED1] = inthandler; /* reserved */ - _ramvec[vba+CPMVEC_PIO_PC8] = inthandler; /* pio - pc8 */ - _ramvec[vba+CPMVEC_PIO_PC7] = inthandler; /* pio - pc7 */ - _ramvec[vba+CPMVEC_PIO_PC6] = inthandler; /* pio - pc6 */ - _ramvec[vba+CPMVEC_TIMER3] = inthandler; /* timer 3 */ - _ramvec[vba+CPMVEC_PIO_PC5] = inthandler; /* pio - pc5 */ - _ramvec[vba+CPMVEC_PIO_PC4] = inthandler; /* pio - pc4 */ - _ramvec[vba+CPMVEC_RESERVED2] = inthandler; /* reserved */ - _ramvec[vba+CPMVEC_RISCTIMER] = inthandler; /* timer table */ - _ramvec[vba+CPMVEC_TIMER2] = inthandler; /* timer 2 */ - _ramvec[vba+CPMVEC_RESERVED3] = inthandler; /* reserved */ - _ramvec[vba+CPMVEC_IDMA2] = inthandler; /* idma 2 */ - _ramvec[vba+CPMVEC_IDMA1] = inthandler; /* idma 1 */ - _ramvec[vba+CPMVEC_SDMA_CB_ERR] = inthandler; /* sdma channel bus error */ - _ramvec[vba+CPMVEC_PIO_PC3] = inthandler; /* pio - pc3 */ - _ramvec[vba+CPMVEC_PIO_PC2] = inthandler; /* pio - pc2 */ - /* _ramvec[vba+CPMVEC_TIMER1] = cpm_isr_timer1; */ /* timer 1 */ - _ramvec[vba+CPMVEC_TIMER1] = inthandler; /* timer 1 */ - _ramvec[vba+CPMVEC_PIO_PC1] = inthandler; /* pio - pc1 */ - _ramvec[vba+CPMVEC_SCC4] = inthandler; /* scc 4 */ - _ramvec[vba+CPMVEC_SCC3] = inthandler; /* scc 3 */ - _ramvec[vba+CPMVEC_SCC2] = inthandler; /* scc 2 */ - _ramvec[vba+CPMVEC_SCC1] = inthandler; /* scc 1 */ - _ramvec[vba+CPMVEC_PIO_PC0] = inthandler; /* pio - pc0 */ - - - /* turn off all CPM interrupts */ - pquicc->intr_cimr = 0x00000000; - - for (i = 0; (i < NR_IRQS); i++) { - set_irq_chip(i, &intc_irq_chip); - set_irq_handler(i, handle_level_irq); - } -} - diff --git a/arch/m68knommu/platform/68EZ328/Makefile b/arch/m68knommu/platform/68EZ328/Makefile deleted file mode 100644 index ee97735a242c..000000000000 --- a/arch/m68knommu/platform/68EZ328/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# -# Makefile for arch/m68knommu/platform/68EZ328. -# - -obj-y := config.o - -extra-y := bootlogo.rh - -$(obj)/bootlogo.rh: $(src)/bootlogo.h - perl $(src)/../68328/bootlogo.pl < $(src)/bootlogo.h \ - > $(obj)/bootlogo.rh diff --git a/arch/m68knommu/platform/68EZ328/bootlogo.h b/arch/m68knommu/platform/68EZ328/bootlogo.h deleted file mode 100644 index e842bdae5839..000000000000 --- a/arch/m68knommu/platform/68EZ328/bootlogo.h +++ /dev/null @@ -1,3204 +0,0 @@ -#define splash_width 640 -#define splash_height 480 -static unsigned char splash_bits[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - }; diff --git a/arch/m68knommu/platform/68EZ328/config.c b/arch/m68knommu/platform/68EZ328/config.c deleted file mode 100644 index 1be1a16f6896..000000000000 --- a/arch/m68knommu/platform/68EZ328/config.c +++ /dev/null @@ -1,76 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/68EZ328/config.c - * - * Copyright (C) 1993 Hamish Macdonald - * Copyright (C) 1999 D. Jeff Dionne - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/***************************************************************************/ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/machdep.h> -#include <asm/MC68EZ328.h> -#ifdef CONFIG_UCSIMM -#include <asm/bootstd.h> -#endif - -/***************************************************************************/ - -void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec); - -/***************************************************************************/ - -void m68ez328_reset(void) -{ - local_irq_disable(); - asm volatile ( - "moveal #0x10c00000, %a0;\n" - "moveb #0, 0xFFFFF300;\n" - "moveal 0(%a0), %sp;\n" - "moveal 4(%a0), %a0;\n" - "jmp (%a0);\n" - ); -} - -/***************************************************************************/ - -unsigned char *cs8900a_hwaddr; -static int errno; - -#ifdef CONFIG_UCSIMM -_bsc0(char *, getserialnum) -_bsc1(unsigned char *, gethwaddr, int, a) -_bsc1(char *, getbenv, char *, a) -#endif - -void config_BSP(char *command, int len) -{ - unsigned char *p; - - printk(KERN_INFO "\n68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n"); - -#ifdef CONFIG_UCSIMM - printk(KERN_INFO "uCsimm serial string [%s]\n",getserialnum()); - p = cs8900a_hwaddr = gethwaddr(0); - printk(KERN_INFO "uCsimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", - p[0], p[1], p[2], p[3], p[4], p[5]); - - p = getbenv("APPEND"); - if (p) strcpy(p,command); - else command[0] = 0; -#endif - - mach_gettod = m68328_timer_gettod; - mach_reset = m68ez328_reset; -} - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/68VZ328/Makefile b/arch/m68knommu/platform/68VZ328/Makefile deleted file mode 100644 index 447ffa0fd7c7..000000000000 --- a/arch/m68knommu/platform/68VZ328/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -# -# Makefile for arch/m68knommu/platform/68VZ328. -# - -obj-y := config.o -logo-$(UCDIMM) := bootlogo.rh -logo-$(DRAGEN2) := screen.h -extra-y := $(logo-y) - -$(obj)/bootlogo.rh: $(src)/../68EZ328/bootlogo.h - perl $(src)/bootlogo.pl < $(src)/../68328/bootlogo.h > $(obj)/bootlogo.rh - -$(obj)/screen.h: $(src)/screen.xbm $(src)/xbm2lcd.pl - perl $(src)/xbm2lcd.pl < $(src)/screen.xbm > $(obj)/screen.h - -clean-files := $(obj)/screen.h $(obj)/bootlogo.rh diff --git a/arch/m68knommu/platform/68VZ328/config.c b/arch/m68knommu/platform/68VZ328/config.c deleted file mode 100644 index eabaabe8af36..000000000000 --- a/arch/m68knommu/platform/68VZ328/config.c +++ /dev/null @@ -1,188 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/68VZ328/config.c - * - * Copyright (C) 1993 Hamish Macdonald - * Copyright (C) 1999 D. Jeff Dionne - * Copyright (C) 2001 Georges Menie, Ken Desmet - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/***************************************************************************/ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/kd.h> -#include <linux/netdevice.h> -#include <linux/interrupt.h> -#include <linux/irq.h> - -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/machdep.h> -#include <asm/MC68VZ328.h> -#include <asm/bootstd.h> - -#ifdef CONFIG_INIT_LCD -#include "bootlogo.h" -#endif - -/***************************************************************************/ - -void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec); - -/***************************************************************************/ -/* Init Drangon Engine hardware */ -/***************************************************************************/ -#if defined(CONFIG_DRAGEN2) - -static void m68vz328_reset(void) -{ - local_irq_disable(); - -#ifdef CONFIG_INIT_LCD - PBDATA |= 0x20; /* disable CCFL light */ - PKDATA |= 0x4; /* disable LCD controller */ - LCKCON = 0; -#endif - - __asm__ __volatile__( - "reset\n\t" - "moveal #0x04000000, %a0\n\t" - "moveal 0(%a0), %sp\n\t" - "moveal 4(%a0), %a0\n\t" - "jmp (%a0)" - ); -} - -static void init_hardware(char *command, int size) -{ -#ifdef CONFIG_DIRECT_IO_ACCESS - SCR = 0x10; /* allow user access to internal registers */ -#endif - - /* CSGB Init */ - CSGBB = 0x4000; - CSB = 0x1a1; - - /* CS8900 init */ - /* PK3: hardware sleep function pin, active low */ - PKSEL |= PK(3); /* select pin as I/O */ - PKDIR |= PK(3); /* select pin as output */ - PKDATA |= PK(3); /* set pin high */ - - /* PF5: hardware reset function pin, active high */ - PFSEL |= PF(5); /* select pin as I/O */ - PFDIR |= PF(5); /* select pin as output */ - PFDATA &= ~PF(5); /* set pin low */ - - /* cs8900 hardware reset */ - PFDATA |= PF(5); - { int i; for (i = 0; i < 32000; ++i); } - PFDATA &= ~PF(5); - - /* INT1 enable (cs8900 IRQ) */ - PDPOL &= ~PD(1); /* active high signal */ - PDIQEG &= ~PD(1); - PDIRQEN |= PD(1); /* IRQ enabled */ - -#ifdef CONFIG_INIT_LCD - /* initialize LCD controller */ - LSSA = (long) screen_bits; - LVPW = 0x14; - LXMAX = 0x140; - LYMAX = 0xef; - LRRA = 0; - LPXCD = 3; - LPICF = 0x08; - LPOLCF = 0; - LCKCON = 0x80; - PCPDEN = 0xff; - PCSEL = 0; - - /* Enable LCD controller */ - PKDIR |= 0x4; - PKSEL |= 0x4; - PKDATA &= ~0x4; - - /* Enable CCFL backlighting circuit */ - PBDIR |= 0x20; - PBSEL |= 0x20; - PBDATA &= ~0x20; - - /* contrast control register */ - PFDIR |= 0x1; - PFSEL &= ~0x1; - PWMR = 0x037F; -#endif -} - -/***************************************************************************/ -/* Init RT-Control uCdimm hardware */ -/***************************************************************************/ -#elif defined(CONFIG_UCDIMM) - -static void m68vz328_reset(void) -{ - local_irq_disable(); - asm volatile ( - "moveal #0x10c00000, %a0;\n\t" - "moveb #0, 0xFFFFF300;\n\t" - "moveal 0(%a0), %sp;\n\t" - "moveal 4(%a0), %a0;\n\t" - "jmp (%a0);\n" - ); -} - -unsigned char *cs8900a_hwaddr; -static int errno; - -_bsc0(char *, getserialnum) -_bsc1(unsigned char *, gethwaddr, int, a) -_bsc1(char *, getbenv, char *, a) - -static void init_hardware(char *command, int size) -{ - char *p; - - printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum()); - p = cs8900a_hwaddr = gethwaddr(0); - printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", - p[0], p[1], p[2], p[3], p[4], p[5]); - p = getbenv("APPEND"); - if (p) - strcpy(p, command); - else - command[0] = 0; -} - -/***************************************************************************/ -#else - -static void m68vz328_reset(void) -{ -} - -static void init_hardware(char *command, int size) -{ -} - -/***************************************************************************/ -#endif -/***************************************************************************/ - -void config_BSP(char *command, int size) -{ - printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n"); - - init_hardware(command, size); - - mach_gettod = m68328_timer_gettod; - mach_reset = m68vz328_reset; -} - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/Makefile b/arch/m68knommu/platform/Makefile deleted file mode 100644 index fc932bf65d34..000000000000 --- a/arch/m68knommu/platform/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -# -# Makefile for the arch/m68knommu/platform. -# diff --git a/arch/m68knommu/platform/coldfire/Makefile b/arch/m68knommu/platform/coldfire/Makefile deleted file mode 100644 index a8967baabd72..000000000000 --- a/arch/m68knommu/platform/coldfire/Makefile +++ /dev/null @@ -1,32 +0,0 @@ -# -# Makefile for the m68knommu kernel. -# - -# -# If you want to play with the HW breakpoints then you will -# need to add define this, which will give you a stack backtrace -# on the console port whenever a DBG interrupt occurs. You have to -# set up you HW breakpoints to trigger a DBG interrupt: -# -# ccflags-y := -DTRAP_DBG_INTERRUPT -# asflags-y := -DTRAP_DBG_INTERRUPT -# - -asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 - -obj-$(CONFIG_COLDFIRE) += cache.o clk.o dma.o entry.o vectors.o -obj-$(CONFIG_M5206) += timers.o intc.o -obj-$(CONFIG_M5206e) += timers.o intc.o -obj-$(CONFIG_M520x) += pit.o intc-simr.o -obj-$(CONFIG_M523x) += pit.o dma_timer.o intc-2.o -obj-$(CONFIG_M5249) += timers.o intc.o -obj-$(CONFIG_M527x) += pit.o intc-2.o -obj-$(CONFIG_M5272) += timers.o -obj-$(CONFIG_M528x) += pit.o intc-2.o -obj-$(CONFIG_M5307) += timers.o intc.o -obj-$(CONFIG_M532x) += timers.o intc-simr.o -obj-$(CONFIG_M5407) += timers.o intc.o -obj-$(CONFIG_M54xx) += sltimers.o intc-2.o - -obj-y += pinmux.o gpio.o -extra-y := head.o diff --git a/arch/m68knommu/platform/coldfire/cache.c b/arch/m68knommu/platform/coldfire/cache.c deleted file mode 100644 index 235d3c4f4f0f..000000000000 --- a/arch/m68knommu/platform/coldfire/cache.c +++ /dev/null @@ -1,48 +0,0 @@ -/***************************************************************************/ - -/* - * cache.c -- general ColdFire Cache maintainence code - * - * Copyright (C) 2010, Greg Ungerer (gerg@snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> - -/***************************************************************************/ -#ifdef CACHE_PUSH -/***************************************************************************/ - -/* - * Use cpushl to push all dirty cache lines back to memory. - * Older versions of GAS don't seem to know how to generate the - * ColdFire cpushl instruction... Oh well, bit stuff it for now. - */ - -void mcf_cache_push(void) -{ - __asm__ __volatile__ ( - "clrl %%d0\n\t" - "1:\n\t" - "movel %%d0,%%a0\n\t" - "2:\n\t" - ".word 0xf468\n\t" - "addl %0,%%a0\n\t" - "cmpl %1,%%a0\n\t" - "blt 2b\n\t" - "addql #1,%%d0\n\t" - "cmpil %2,%%d0\n\t" - "bne 1b\n\t" - : /* No output */ - : "i" (CACHE_LINE_SIZE), - "i" (DCACHE_SIZE / CACHE_WAYS), - "i" (CACHE_WAYS) - : "d0", "a0" ); -} - -/***************************************************************************/ -#endif /* CACHE_PUSH */ -/***************************************************************************/ diff --git a/arch/m68knommu/platform/coldfire/clk.c b/arch/m68knommu/platform/coldfire/clk.c deleted file mode 100644 index 9f1260c5e2ad..000000000000 --- a/arch/m68knommu/platform/coldfire/clk.c +++ /dev/null @@ -1,45 +0,0 @@ -/***************************************************************************/ - -/* - * clk.c -- general ColdFire CPU kernel clk handling - * - * Copyright (C) 2009, Greg Ungerer (gerg@snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/clk.h> -#include <asm/coldfire.h> - -/***************************************************************************/ - -struct clk *clk_get(struct device *dev, const char *id) -{ - return NULL; -} -EXPORT_SYMBOL(clk_get); - -int clk_enable(struct clk *clk) -{ - return 0; -} -EXPORT_SYMBOL(clk_enable); - -void clk_disable(struct clk *clk) -{ -} -EXPORT_SYMBOL(clk_disable); - -void clk_put(struct clk *clk) -{ -} -EXPORT_SYMBOL(clk_put); - -unsigned long clk_get_rate(struct clk *clk) -{ - return MCF_CLK; -} -EXPORT_SYMBOL(clk_get_rate); -/***************************************************************************/ diff --git a/arch/m68knommu/platform/coldfire/dma.c b/arch/m68knommu/platform/coldfire/dma.c deleted file mode 100644 index e88b95e2cc62..000000000000 --- a/arch/m68knommu/platform/coldfire/dma.c +++ /dev/null @@ -1,39 +0,0 @@ -/***************************************************************************/ - -/* - * dma.c -- Freescale ColdFire DMA support - * - * Copyright (C) 2007, Greg Ungerer (gerg@snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <asm/dma.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfdma.h> - -/***************************************************************************/ - -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { -#ifdef MCFDMA_BASE0 - MCFDMA_BASE0, -#endif -#ifdef MCFDMA_BASE1 - MCFDMA_BASE1, -#endif -#ifdef MCFDMA_BASE2 - MCFDMA_BASE2, -#endif -#ifdef MCFDMA_BASE3 - MCFDMA_BASE3, -#endif -}; - -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/coldfire/dma_timer.c b/arch/m68knommu/platform/coldfire/dma_timer.c deleted file mode 100644 index a5f562823d7a..000000000000 --- a/arch/m68knommu/platform/coldfire/dma_timer.c +++ /dev/null @@ -1,84 +0,0 @@ -/* - * dma_timer.c -- Freescale ColdFire DMA Timer. - * - * Copyright (C) 2007, Benedikt Spranger <b.spranger@linutronix.de> - * Copyright (C) 2008. Sebastian Siewior, Linutronix - * - */ - -#include <linux/clocksource.h> -#include <linux/io.h> - -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfpit.h> -#include <asm/mcfsim.h> - -#define DMA_TIMER_0 (0x00) -#define DMA_TIMER_1 (0x40) -#define DMA_TIMER_2 (0x80) -#define DMA_TIMER_3 (0xc0) - -#define DTMR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x400) -#define DTXMR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x402) -#define DTER0 (MCF_IPSBAR + DMA_TIMER_0 + 0x403) -#define DTRR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x404) -#define DTCR0 (MCF_IPSBAR + DMA_TIMER_0 + 0x408) -#define DTCN0 (MCF_IPSBAR + DMA_TIMER_0 + 0x40c) - -#define DMA_FREQ ((MCF_CLK / 2) / 16) - -/* DTMR */ -#define DMA_DTMR_RESTART (1 << 3) -#define DMA_DTMR_CLK_DIV_1 (1 << 1) -#define DMA_DTMR_CLK_DIV_16 (2 << 1) -#define DMA_DTMR_ENABLE (1 << 0) - -static cycle_t cf_dt_get_cycles(struct clocksource *cs) -{ - return __raw_readl(DTCN0); -} - -static struct clocksource clocksource_cf_dt = { - .name = "coldfire_dma_timer", - .rating = 200, - .read = cf_dt_get_cycles, - .mask = CLOCKSOURCE_MASK(32), - .shift = 20, - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -static int __init init_cf_dt_clocksource(void) -{ - /* - * We setup DMA timer 0 in free run mode. This incrementing counter is - * used as a highly precious clock source. With MCF_CLOCK = 150 MHz we - * get a ~213 ns resolution and the 32bit register will overflow almost - * every 15 minutes. - */ - __raw_writeb(0x00, DTXMR0); - __raw_writeb(0x00, DTER0); - __raw_writel(0x00000000, DTRR0); - __raw_writew(DMA_DTMR_CLK_DIV_16 | DMA_DTMR_ENABLE, DTMR0); - clocksource_cf_dt.mult = clocksource_hz2mult(DMA_FREQ, - clocksource_cf_dt.shift); - return clocksource_register(&clocksource_cf_dt); -} - -arch_initcall(init_cf_dt_clocksource); - -#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ -#define CYC2NS_SCALE ((1000000 << CYC2NS_SCALE_FACTOR) / (DMA_FREQ / 1000)) - -static unsigned long long cycles2ns(unsigned long cycl) -{ - return (unsigned long long) ((unsigned long long)cycl * - CYC2NS_SCALE) >> CYC2NS_SCALE_FACTOR; -} - -unsigned long long sched_clock(void) -{ - unsigned long cycl = __raw_readl(DTCN0); - - return cycles2ns(cycl); -} diff --git a/arch/m68knommu/platform/coldfire/entry.S b/arch/m68knommu/platform/coldfire/entry.S deleted file mode 100644 index 5837cf080b6d..000000000000 --- a/arch/m68knommu/platform/coldfire/entry.S +++ /dev/null @@ -1,203 +0,0 @@ -/* - * linux/arch/m68knommu/platform/5307/entry.S - * - * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Kenneth Albanowski <kjahds@kjahds.com>, - * Copyright (C) 2000 Lineo Inc. (www.lineo.com) - * Copyright (C) 2004-2006 Macq Electronique SA. (www.macqel.com) - * - * Based on: - * - * linux/arch/m68k/kernel/entry.S - * - * Copyright (C) 1991, 1992 Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file README.legal in the main directory of this archive - * for more details. - * - * Linux/m68k support by Hamish Macdonald - * - * 68060 fixes by Jesper Skov - * ColdFire support by Greg Ungerer (gerg@snapgear.com) - * 5307 fixes by David W. Miller - * linux 2.4 support David McCullough <davidm@snapgear.com> - * Bug, speed and maintainability fixes by Philippe De Muyter <phdm@macqel.be> - */ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/unistd.h> -#include <asm/thread_info.h> -#include <asm/errno.h> -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/asm-offsets.h> -#include <asm/entry.h> - -#ifdef CONFIG_COLDFIRE_SW_A7 -/* - * Define software copies of the supervisor and user stack pointers. - */ -.bss -sw_ksp: -.long 0 -sw_usp: -.long 0 -#endif /* CONFIG_COLDFIRE_SW_A7 */ - -.text - -.globl system_call -.globl resume -.globl ret_from_exception -.globl ret_from_signal -.globl sys_call_table -.globl inthandler -.globl fasthandler - -enosys: - mov.l #sys_ni_syscall,%d3 - bra 1f - -ENTRY(system_call) - SAVE_ALL - move #0x2000,%sr /* enable intrs again */ - - cmpl #NR_syscalls,%d0 - jcc enosys - lea sys_call_table,%a0 - lsll #2,%d0 /* movel %a0@(%d0:l:4),%d3 */ - movel %a0@(%d0),%d3 - jeq enosys - -1: - movel %sp,%d2 /* get thread_info pointer */ - andl #-THREAD_SIZE,%d2 /* at start of kernel stack */ - movel %d2,%a0 - movel %a0@,%a1 /* save top of frame */ - movel %sp,%a1@(TASK_THREAD+THREAD_ESP0) - btst #(TIF_SYSCALL_TRACE%8),%a0@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) - bnes 1f - - movel %d3,%a0 - jbsr %a0@ - movel %d0,%sp@(PT_OFF_D0) /* save the return value */ - jra ret_from_exception -1: - movel #-ENOSYS,%d2 /* strace needs -ENOSYS in PT_OFF_D0 */ - movel %d2,PT_OFF_D0(%sp) /* on syscall entry */ - subql #4,%sp - SAVE_SWITCH_STACK - jbsr syscall_trace_enter - RESTORE_SWITCH_STACK - addql #4,%sp - movel %d3,%a0 - jbsr %a0@ - movel %d0,%sp@(PT_OFF_D0) /* save the return value */ - subql #4,%sp /* dummy return address */ - SAVE_SWITCH_STACK - jbsr syscall_trace_leave - -ret_from_signal: - RESTORE_SWITCH_STACK - addql #4,%sp - -ret_from_exception: - move #0x2700,%sr /* disable intrs */ - btst #5,%sp@(PT_OFF_SR) /* check if returning to kernel */ - jeq Luser_return /* if so, skip resched, signals */ - -#ifdef CONFIG_PREEMPT - movel %sp,%d1 /* get thread_info pointer */ - andl #-THREAD_SIZE,%d1 /* at base of kernel stack */ - movel %d1,%a0 - movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ - andl #(1<<TIF_NEED_RESCHED),%d1 - jeq Lkernel_return - - movel %a0@(TI_PREEMPTCOUNT),%d1 - cmpl #0,%d1 - jne Lkernel_return - - pea Lkernel_return - jmp preempt_schedule_irq /* preempt the kernel */ -#endif - -Lkernel_return: - moveml %sp@,%d1-%d5/%a0-%a2 - lea %sp@(32),%sp /* space for 8 regs */ - movel %sp@+,%d0 - addql #4,%sp /* orig d0 */ - addl %sp@+,%sp /* stk adj */ - rte - -Luser_return: - movel %sp,%d1 /* get thread_info pointer */ - andl #-THREAD_SIZE,%d1 /* at base of kernel stack */ - movel %d1,%a0 - movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ - jne Lwork_to_do /* still work to do */ - -Lreturn: - RESTORE_USER - -Lwork_to_do: - movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ - move #0x2000,%sr /* enable intrs again */ - btst #TIF_NEED_RESCHED,%d1 - jne reschedule - - /* GERG: do we need something here for TRACEing?? */ - -Lsignal_return: - subql #4,%sp /* dummy return address */ - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jsr do_signal - addql #4,%sp - RESTORE_SWITCH_STACK - addql #4,%sp - jmp Luser_return - -/* - * This is the generic interrupt handler (for all hardware interrupt - * sources). Calls upto high level code to do all the work. - */ -ENTRY(inthandler) - SAVE_ALL - moveq #-1,%d0 - movel %d0,%sp@(PT_OFF_ORIG_D0) - - movew %sp@(PT_OFF_FORMATVEC),%d0 /* put exception # in d0 */ - andl #0x03fc,%d0 /* mask out vector only */ - - movel %sp,%sp@- /* push regs arg */ - lsrl #2,%d0 /* calculate real vector # */ - movel %d0,%sp@- /* push vector number */ - jbsr do_IRQ /* call high level irq handler */ - lea %sp@(8),%sp /* pop args off stack */ - - bra ret_from_exception - -/* - * Beware - when entering resume, prev (the current task) is - * in a0, next (the new task) is in a1,so don't change these - * registers until their contents are no longer needed. - * This is always called in supervisor mode, so don't bother to save - * and restore sr; user's process sr is actually in the stack. - */ -ENTRY(resume) - movel %a0, %d1 /* get prev thread in d1 */ - RDUSP - movel %a2,%a0@(TASK_THREAD+THREAD_USP) - - SAVE_SWITCH_STACK - movel %sp,%a0@(TASK_THREAD+THREAD_KSP) /* save kernel stack pointer */ - movel %a1@(TASK_THREAD+THREAD_KSP),%sp /* restore new thread stack */ - RESTORE_SWITCH_STACK - - movel %a1@(TASK_THREAD+THREAD_USP),%a0 /* restore thread user stack */ - WRUSP - rts diff --git a/arch/m68knommu/platform/coldfire/gpio.c b/arch/m68knommu/platform/coldfire/gpio.c deleted file mode 100644 index ff0045793450..000000000000 --- a/arch/m68knommu/platform/coldfire/gpio.c +++ /dev/null @@ -1,127 +0,0 @@ -/* - * Coldfire generic GPIO support. - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/sysdev.h> - -#include <asm/gpio.h> -#include <asm/pinmux.h> -#include <asm/mcfgpio.h> - -#define MCF_CHIP(chip) container_of(chip, struct mcf_gpio_chip, gpio_chip) - -int mcf_gpio_direction_input(struct gpio_chip *chip, unsigned offset) -{ - unsigned long flags; - MCFGPIO_PORTTYPE dir; - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); - - local_irq_save(flags); - dir = mcfgpio_read(mcf_chip->pddr); - dir &= ~mcfgpio_bit(chip->base + offset); - mcfgpio_write(dir, mcf_chip->pddr); - local_irq_restore(flags); - - return 0; -} - -int mcf_gpio_get_value(struct gpio_chip *chip, unsigned offset) -{ - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); - - return mcfgpio_read(mcf_chip->ppdr) & mcfgpio_bit(chip->base + offset); -} - -int mcf_gpio_direction_output(struct gpio_chip *chip, unsigned offset, - int value) -{ - unsigned long flags; - MCFGPIO_PORTTYPE data; - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); - - local_irq_save(flags); - /* write the value to the output latch */ - data = mcfgpio_read(mcf_chip->podr); - if (value) - data |= mcfgpio_bit(chip->base + offset); - else - data &= ~mcfgpio_bit(chip->base + offset); - mcfgpio_write(data, mcf_chip->podr); - - /* now set the direction to output */ - data = mcfgpio_read(mcf_chip->pddr); - data |= mcfgpio_bit(chip->base + offset); - mcfgpio_write(data, mcf_chip->pddr); - local_irq_restore(flags); - - return 0; -} - -void mcf_gpio_set_value(struct gpio_chip *chip, unsigned offset, int value) -{ - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); - - unsigned long flags; - MCFGPIO_PORTTYPE data; - - local_irq_save(flags); - data = mcfgpio_read(mcf_chip->podr); - if (value) - data |= mcfgpio_bit(chip->base + offset); - else - data &= ~mcfgpio_bit(chip->base + offset); - mcfgpio_write(data, mcf_chip->podr); - local_irq_restore(flags); -} - -void mcf_gpio_set_value_fast(struct gpio_chip *chip, unsigned offset, int value) -{ - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); - - if (value) - mcfgpio_write(mcfgpio_bit(chip->base + offset), mcf_chip->setr); - else - mcfgpio_write(~mcfgpio_bit(chip->base + offset), mcf_chip->clrr); -} - -int mcf_gpio_request(struct gpio_chip *chip, unsigned offset) -{ - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); - - return mcf_chip->gpio_to_pinmux ? - mcf_pinmux_request(mcf_chip->gpio_to_pinmux[offset], 0) : 0; -} - -void mcf_gpio_free(struct gpio_chip *chip, unsigned offset) -{ - struct mcf_gpio_chip *mcf_chip = MCF_CHIP(chip); - - mcf_gpio_direction_input(chip, offset); - - if (mcf_chip->gpio_to_pinmux) - mcf_pinmux_release(mcf_chip->gpio_to_pinmux[offset], 0); -} - -struct sysdev_class mcf_gpio_sysclass = { - .name = "gpio", -}; - -static int __init mcf_gpio_sysinit(void) -{ - return sysdev_class_register(&mcf_gpio_sysclass); -} - -core_initcall(mcf_gpio_sysinit); diff --git a/arch/m68knommu/platform/coldfire/head.S b/arch/m68knommu/platform/coldfire/head.S deleted file mode 100644 index 129bff4956b5..000000000000 --- a/arch/m68knommu/platform/coldfire/head.S +++ /dev/null @@ -1,250 +0,0 @@ -/*****************************************************************************/ - -/* - * head.S -- common startup code for ColdFire CPUs. - * - * (C) Copyright 1999-2010, Greg Ungerer <gerg@snapgear.com>. - */ - -/*****************************************************************************/ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <linux/init.h> -#include <asm/asm-offsets.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/thread_info.h> - -/*****************************************************************************/ - -/* - * If we don't have a fixed memory size, then lets build in code - * to auto detect the DRAM size. Obviously this is the prefered - * method, and should work for most boards. It won't work for those - * that do not have their RAM starting at address 0, and it only - * works on SDRAM (not boards fitted with SRAM). - */ -#if CONFIG_RAMSIZE != 0 -.macro GET_MEM_SIZE - movel #CONFIG_RAMSIZE,%d0 /* hard coded memory size */ -.endm - -#elif defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \ - defined(CONFIG_M5249) || defined(CONFIG_M527x) || \ - defined(CONFIG_M528x) || defined(CONFIG_M5307) || \ - defined(CONFIG_M5407) -/* - * Not all these devices have exactly the same DRAM controller, - * but the DCMR register is virtually identical - give or take - * a couple of bits. The only exception is the 5272 devices, their - * DRAM controller is quite different. - */ -.macro GET_MEM_SIZE - movel MCFSIM_DMR0,%d0 /* get mask for 1st bank */ - btst #0,%d0 /* check if region enabled */ - beq 1f - andl #0xfffc0000,%d0 - beq 1f - addl #0x00040000,%d0 /* convert mask to size */ -1: - movel MCFSIM_DMR1,%d1 /* get mask for 2nd bank */ - btst #0,%d1 /* check if region enabled */ - beq 2f - andl #0xfffc0000,%d1 - beq 2f - addl #0x00040000,%d1 - addl %d1,%d0 /* total mem size in d0 */ -2: -.endm - -#elif defined(CONFIG_M5272) -.macro GET_MEM_SIZE - movel MCF_MBAR+MCFSIM_CSOR7,%d0 /* get SDRAM address mask */ - andil #0xfffff000,%d0 /* mask out chip select options */ - negl %d0 /* negate bits */ -.endm - -#elif defined(CONFIG_M520x) -.macro GET_MEM_SIZE - clrl %d0 - movel MCFSIM_SDCS0, %d2 /* Get SDRAM chip select 0 config */ - andl #0x1f, %d2 /* Get only the chip select size */ - beq 3f /* Check if it is enabled */ - addql #1, %d2 /* Form exponent */ - moveql #1, %d0 - lsll %d2, %d0 /* 2 ^ exponent */ -3: - movel MCFSIM_SDCS1, %d2 /* Get SDRAM chip select 1 config */ - andl #0x1f, %d2 /* Get only the chip select size */ - beq 4f /* Check if it is enabled */ - addql #1, %d2 /* Form exponent */ - moveql #1, %d1 - lsll %d2, %d1 /* 2 ^ exponent */ - addl %d1, %d0 /* Total size of SDRAM in d0 */ -4: -.endm - -#else -#error "ERROR: I don't know how to probe your boards memory size?" -#endif - -/*****************************************************************************/ - -/* - * Boards and platforms can do specific early hardware setup if - * they need to. Most don't need this, define away if not required. - */ -#ifndef PLATFORM_SETUP -#define PLATFORM_SETUP -#endif - -/*****************************************************************************/ - -.global _start -.global _rambase -.global _ramvec -.global _ramstart -.global _ramend -#if defined(CONFIG_UBOOT) -.global _init_sp -#endif - -/*****************************************************************************/ - -.data - -/* - * During startup we store away the RAM setup. These are not in the - * bss, since their values are determined and written before the bss - * has been cleared. - */ -_rambase: -.long 0 -_ramvec: -.long 0 -_ramstart: -.long 0 -_ramend: -.long 0 -#if defined(CONFIG_UBOOT) -_init_sp: -.long 0 -#endif - -/*****************************************************************************/ - -__HEAD - -/* - * This is the codes first entry point. This is where it all - * begins... - */ - -_start: - nop /* filler */ - movew #0x2700, %sr /* no interrupts */ -#if defined(CONFIG_UBOOT) - movel %sp,_init_sp /* save initial stack pointer */ -#endif - - /* - * Do any platform or board specific setup now. Most boards - * don't need anything. Those exceptions are define this in - * their board specific includes. - */ - PLATFORM_SETUP - - /* - * Create basic memory configuration. Set VBR accordingly, - * and size memory. - */ - movel #CONFIG_VECTORBASE,%a7 - movec %a7,%VBR /* set vectors addr */ - movel %a7,_ramvec - - movel #CONFIG_RAMBASE,%a7 /* mark the base of RAM */ - movel %a7,_rambase - - GET_MEM_SIZE /* macro code determines size */ - addl %a7,%d0 - movel %d0,_ramend /* set end ram addr */ - - /* - * Now that we know what the memory is, lets enable cache - * and get things moving. This is Coldfire CPU specific. Not - * all version cores have identical cache register setup. But - * it is very similar. Define the exact settings in the headers - * then the code here is the same for all. - */ - movel #CACHE_INIT,%d0 /* invalidate whole cache */ - movec %d0,%CACR - nop - movel #ACR0_MODE,%d0 /* set RAM region for caching */ - movec %d0,%ACR0 - movel #ACR1_MODE,%d0 /* anything else to cache? */ - movec %d0,%ACR1 -#ifdef ACR2_MODE - movel #ACR2_MODE,%d0 - movec %d0,%ACR2 - movel #ACR3_MODE,%d0 - movec %d0,%ACR3 -#endif - movel #CACHE_MODE,%d0 /* enable cache */ - movec %d0,%CACR - nop - -#ifdef CONFIG_ROMFS_FS - /* - * Move ROM filesystem above bss :-) - */ - lea _sbss,%a0 /* get start of bss */ - lea _ebss,%a1 /* set up destination */ - movel %a0,%a2 /* copy of bss start */ - - movel 8(%a0),%d0 /* get size of ROMFS */ - addql #8,%d0 /* allow for rounding */ - andl #0xfffffffc, %d0 /* whole words */ - - addl %d0,%a0 /* copy from end */ - addl %d0,%a1 /* copy from end */ - movel %a1,_ramstart /* set start of ram */ - -_copy_romfs: - movel -(%a0),%d0 /* copy dword */ - movel %d0,-(%a1) - cmpl %a0,%a2 /* check if at end */ - bne _copy_romfs - -#else /* CONFIG_ROMFS_FS */ - lea _ebss,%a1 - movel %a1,_ramstart -#endif /* CONFIG_ROMFS_FS */ - - - /* - * Zero out the bss region. - */ - lea _sbss,%a0 /* get start of bss */ - lea _ebss,%a1 /* get end of bss */ - clrl %d0 /* set value */ -_clear_bss: - movel %d0,(%a0)+ /* clear each word */ - cmpl %a0,%a1 /* check if at end */ - bne _clear_bss - - /* - * Load the current task pointer and stack. - */ - lea init_thread_union,%a0 - lea THREAD_SIZE(%a0),%sp - - /* - * Assember start up done, start code proper. - */ - jsr start_kernel /* start Linux kernel */ - -_exit: - jmp _exit /* should never get here */ - -/*****************************************************************************/ diff --git a/arch/m68knommu/platform/coldfire/intc-2.c b/arch/m68knommu/platform/coldfire/intc-2.c deleted file mode 100644 index 2cbfbf035db9..000000000000 --- a/arch/m68knommu/platform/coldfire/intc-2.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * intc-2.c - * - * General interrupt controller code for the many ColdFire cores that use - * interrupt controllers with 63 interrupt sources, organized as 56 fully- - * programmable + 7 fixed-level interrupt sources. This includes the 523x - * family, the 5270, 5271, 5274, 5275, and the 528x family which have two such - * controllers, and the 547x and 548x families which have only one of them. - * - * The external 7 fixed interrupts are part the the Edge Port unit of these - * ColdFire parts. They can be configured as level or edge triggered. - * - * (C) Copyright 2009-2011, Greg Ungerer <gerg@snapgear.com> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/io.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/traps.h> - -/* - * Bit definitions for the ICR family of registers. - */ -#define MCFSIM_ICR_LEVEL(l) ((l)<<3) /* Level l intr */ -#define MCFSIM_ICR_PRI(p) (p) /* Priority p intr */ - -/* - * The EDGE Port interrupts are the fixed 7 external interrupts. - * They need some special treatment, for example they need to be acked. - */ -#define EINT0 64 /* Is not actually used, but spot reserved for it */ -#define EINT1 65 /* EDGE Port interrupt 1 */ -#define EINT7 71 /* EDGE Port interrupt 7 */ - -#ifdef MCFICM_INTC1 -#define NR_VECS 128 -#else -#define NR_VECS 64 -#endif - -static void intc_irq_mask(struct irq_data *d) -{ - unsigned int irq = d->irq - MCFINT_VECBASE; - unsigned long imraddr; - u32 val, imrbit; - -#ifdef MCFICM_INTC1 - imraddr = (irq & 0x40) ? MCFICM_INTC1 : MCFICM_INTC0; -#else - imraddr = MCFICM_INTC0; -#endif - imraddr += (irq & 0x20) ? MCFINTC_IMRH : MCFINTC_IMRL; - imrbit = 0x1 << (irq & 0x1f); - - val = __raw_readl(imraddr); - __raw_writel(val | imrbit, imraddr); -} - -static void intc_irq_unmask(struct irq_data *d) -{ - unsigned int irq = d->irq - MCFINT_VECBASE; - unsigned long imraddr; - u32 val, imrbit; - -#ifdef MCFICM_INTC1 - imraddr = (irq & 0x40) ? MCFICM_INTC1 : MCFICM_INTC0; -#else - imraddr = MCFICM_INTC0; -#endif - imraddr += ((irq & 0x20) ? MCFINTC_IMRH : MCFINTC_IMRL); - imrbit = 0x1 << (irq & 0x1f); - - /* Don't set the "maskall" bit! */ - if ((irq & 0x20) == 0) - imrbit |= 0x1; - - val = __raw_readl(imraddr); - __raw_writel(val & ~imrbit, imraddr); -} - -/* - * Only the external (or EDGE Port) interrupts need to be acknowledged - * here, as part of the IRQ handler. They only really need to be ack'ed - * if they are in edge triggered mode, but there is no harm in doing it - * for all types. - */ -static void intc_irq_ack(struct irq_data *d) -{ - unsigned int irq = d->irq; - - __raw_writeb(0x1 << (irq - EINT0), MCFEPORT_EPFR); -} - -/* - * Each vector needs a unique priority and level associated with it. - * We don't really care so much what they are, we don't rely on the - * traditional priority interrupt scheme of the m68k/ColdFire. This - * only needs to be set once for an interrupt, and we will never change - * these values once we have set them. - */ -static u8 intc_intpri = MCFSIM_ICR_LEVEL(6) | MCFSIM_ICR_PRI(6); - -static unsigned int intc_irq_startup(struct irq_data *d) -{ - unsigned int irq = d->irq - MCFINT_VECBASE; - unsigned long icraddr; - -#ifdef MCFICM_INTC1 - icraddr = (irq & 0x40) ? MCFICM_INTC1 : MCFICM_INTC0; -#else - icraddr = MCFICM_INTC0; -#endif - icraddr += MCFINTC_ICR0 + (irq & 0x3f); - if (__raw_readb(icraddr) == 0) - __raw_writeb(intc_intpri--, icraddr); - - irq = d->irq; - if ((irq >= EINT1) && (irq <= EINT7)) { - u8 v; - - irq -= EINT0; - - /* Set EPORT line as input */ - v = __raw_readb(MCFEPORT_EPDDR); - __raw_writeb(v & ~(0x1 << irq), MCFEPORT_EPDDR); - - /* Set EPORT line as interrupt source */ - v = __raw_readb(MCFEPORT_EPIER); - __raw_writeb(v | (0x1 << irq), MCFEPORT_EPIER); - } - - intc_irq_unmask(d); - return 0; -} - -static int intc_irq_set_type(struct irq_data *d, unsigned int type) -{ - unsigned int irq = d->irq; - u16 pa, tb; - - switch (type) { - case IRQ_TYPE_EDGE_RISING: - tb = 0x1; - break; - case IRQ_TYPE_EDGE_FALLING: - tb = 0x2; - break; - case IRQ_TYPE_EDGE_BOTH: - tb = 0x3; - break; - default: - /* Level triggered */ - tb = 0; - break; - } - - if (tb) - set_irq_handler(irq, handle_edge_irq); - - irq -= EINT0; - pa = __raw_readw(MCFEPORT_EPPAR); - pa = (pa & ~(0x3 << (irq * 2))) | (tb << (irq * 2)); - __raw_writew(pa, MCFEPORT_EPPAR); - - return 0; -} - -static struct irq_chip intc_irq_chip = { - .name = "CF-INTC", - .irq_startup = intc_irq_startup, - .irq_mask = intc_irq_mask, - .irq_unmask = intc_irq_unmask, -}; - -static struct irq_chip intc_irq_chip_edge_port = { - .name = "CF-INTC-EP", - .irq_startup = intc_irq_startup, - .irq_mask = intc_irq_mask, - .irq_unmask = intc_irq_unmask, - .irq_ack = intc_irq_ack, - .irq_set_type = intc_irq_set_type, -}; - -void __init init_IRQ(void) -{ - int irq; - - init_vectors(); - - /* Mask all interrupt sources */ - __raw_writel(0x1, MCFICM_INTC0 + MCFINTC_IMRL); -#ifdef MCFICM_INTC1 - __raw_writel(0x1, MCFICM_INTC1 + MCFINTC_IMRL); -#endif - - for (irq = MCFINT_VECBASE; (irq < MCFINT_VECBASE + NR_VECS); irq++) { - if ((irq >= EINT1) && (irq <=EINT7)) - set_irq_chip(irq, &intc_irq_chip_edge_port); - else - set_irq_chip(irq, &intc_irq_chip); - set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH); - set_irq_handler(irq, handle_level_irq); - } -} - diff --git a/arch/m68knommu/platform/coldfire/intc-simr.c b/arch/m68knommu/platform/coldfire/intc-simr.c deleted file mode 100644 index e642b24ab729..000000000000 --- a/arch/m68knommu/platform/coldfire/intc-simr.c +++ /dev/null @@ -1,191 +0,0 @@ -/* - * intc-simr.c - * - * Interrupt controller code for the ColdFire 5208, 5207 & 532x parts. - * - * (C) Copyright 2009-2011, Greg Ungerer <gerg@snapgear.com> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/io.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/traps.h> - -/* - * The EDGE Port interrupts are the fixed 7 external interrupts. - * They need some special treatment, for example they need to be acked. - */ -#ifdef CONFIG_M520x -/* - * The 520x parts only support a limited range of these external - * interrupts, only 1, 4 and 7 (as interrupts 65, 66 and 67). - */ -#define EINT0 64 /* Is not actually used, but spot reserved for it */ -#define EINT1 65 /* EDGE Port interrupt 1 */ -#define EINT4 66 /* EDGE Port interrupt 4 */ -#define EINT7 67 /* EDGE Port interrupt 7 */ - -static unsigned int irqebitmap[] = { 0, 1, 4, 7 }; -static unsigned int inline irq2ebit(unsigned int irq) -{ - return irqebitmap[irq - EINT0]; -} - -#else - -/* - * Most of the ColdFire parts with the EDGE Port module just have - * a strait direct mapping of the 7 external interrupts. Although - * there is a bit reserved for 0, it is not used. - */ -#define EINT0 64 /* Is not actually used, but spot reserved for it */ -#define EINT1 65 /* EDGE Port interrupt 1 */ -#define EINT7 71 /* EDGE Port interrupt 7 */ - -static unsigned int inline irq2ebit(unsigned int irq) -{ - return irq - EINT0; -} - -#endif - -/* - * There maybe one or two interrupt control units, each has 64 - * interrupts. If there is no second unit then MCFINTC1_* defines - * will be 0 (and code for them optimized away). - */ - -static void intc_irq_mask(struct irq_data *d) -{ - unsigned int irq = d->irq - MCFINT_VECBASE; - - if (MCFINTC1_SIMR && (irq > 64)) - __raw_writeb(irq - 64, MCFINTC1_SIMR); - else - __raw_writeb(irq, MCFINTC0_SIMR); -} - -static void intc_irq_unmask(struct irq_data *d) -{ - unsigned int irq = d->irq - MCFINT_VECBASE; - - if (MCFINTC1_CIMR && (irq > 64)) - __raw_writeb(irq - 64, MCFINTC1_CIMR); - else - __raw_writeb(irq, MCFINTC0_CIMR); -} - -static void intc_irq_ack(struct irq_data *d) -{ - unsigned int ebit = irq2ebit(d->irq); - - __raw_writeb(0x1 << ebit, MCFEPORT_EPFR); -} - -static unsigned int intc_irq_startup(struct irq_data *d) -{ - unsigned int irq = d->irq; - - if ((irq >= EINT1) && (irq <= EINT7)) { - unsigned int ebit = irq2ebit(irq); - u8 v; - - /* Set EPORT line as input */ - v = __raw_readb(MCFEPORT_EPDDR); - __raw_writeb(v & ~(0x1 << ebit), MCFEPORT_EPDDR); - - /* Set EPORT line as interrupt source */ - v = __raw_readb(MCFEPORT_EPIER); - __raw_writeb(v | (0x1 << ebit), MCFEPORT_EPIER); - } - - irq -= MCFINT_VECBASE; - if (MCFINTC1_ICR0 && (irq > 64)) - __raw_writeb(5, MCFINTC1_ICR0 + irq - 64); - else - __raw_writeb(5, MCFINTC0_ICR0 + irq); - - - intc_irq_unmask(d); - return 0; -} - -static int intc_irq_set_type(struct irq_data *d, unsigned int type) -{ - unsigned int ebit, irq = d->irq; - u16 pa, tb; - - switch (type) { - case IRQ_TYPE_EDGE_RISING: - tb = 0x1; - break; - case IRQ_TYPE_EDGE_FALLING: - tb = 0x2; - break; - case IRQ_TYPE_EDGE_BOTH: - tb = 0x3; - break; - default: - /* Level triggered */ - tb = 0; - break; - } - - if (tb) - set_irq_handler(irq, handle_edge_irq); - - ebit = irq2ebit(irq) * 2; - pa = __raw_readw(MCFEPORT_EPPAR); - pa = (pa & ~(0x3 << ebit)) | (tb << ebit); - __raw_writew(pa, MCFEPORT_EPPAR); - - return 0; -} - -static struct irq_chip intc_irq_chip = { - .name = "CF-INTC", - .irq_startup = intc_irq_startup, - .irq_mask = intc_irq_mask, - .irq_unmask = intc_irq_unmask, -}; - -static struct irq_chip intc_irq_chip_edge_port = { - .name = "CF-INTC-EP", - .irq_startup = intc_irq_startup, - .irq_mask = intc_irq_mask, - .irq_unmask = intc_irq_unmask, - .irq_ack = intc_irq_ack, - .irq_set_type = intc_irq_set_type, -}; - -void __init init_IRQ(void) -{ - int irq, eirq; - - init_vectors(); - - /* Mask all interrupt sources */ - __raw_writeb(0xff, MCFINTC0_SIMR); - if (MCFINTC1_SIMR) - __raw_writeb(0xff, MCFINTC1_SIMR); - - eirq = MCFINT_VECBASE + 64 + (MCFINTC1_ICR0 ? 64 : 0); - for (irq = MCFINT_VECBASE; (irq < eirq); irq++) { - if ((irq >= EINT1) && (irq <= EINT7)) - set_irq_chip(irq, &intc_irq_chip_edge_port); - else - set_irq_chip(irq, &intc_irq_chip); - set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH); - set_irq_handler(irq, handle_level_irq); - } -} - diff --git a/arch/m68knommu/platform/coldfire/intc.c b/arch/m68knommu/platform/coldfire/intc.c deleted file mode 100644 index d648081a63f6..000000000000 --- a/arch/m68knommu/platform/coldfire/intc.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * intc.c -- support for the old ColdFire interrupt controller - * - * (C) Copyright 2009, Greg Ungerer <gerg@snapgear.com> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/io.h> -#include <asm/traps.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> - -/* - * The mapping of irq number to a mask register bit is not one-to-one. - * The irq numbers are either based on "level" of interrupt or fixed - * for an autovector-able interrupt. So we keep a local data structure - * that maps from irq to mask register. Not all interrupts will have - * an IMR bit. - */ -unsigned char mcf_irq2imr[NR_IRQS]; - -/* - * Define the miniumun and maximum external interrupt numbers. - * This is also used as the "level" interrupt numbers. - */ -#define EIRQ1 25 -#define EIRQ7 31 - -/* - * In the early version 2 core ColdFire parts the IMR register was 16 bits - * in size. Version 3 (and later version 2) core parts have a 32 bit - * sized IMR register. Provide some size independant methods to access the - * IMR register. - */ -#ifdef MCFSIM_IMR_IS_16BITS - -void mcf_setimr(int index) -{ - u16 imr; - imr = __raw_readw(MCF_MBAR + MCFSIM_IMR); - __raw_writew(imr | (0x1 << index), MCF_MBAR + MCFSIM_IMR); -} - -void mcf_clrimr(int index) -{ - u16 imr; - imr = __raw_readw(MCF_MBAR + MCFSIM_IMR); - __raw_writew(imr & ~(0x1 << index), MCF_MBAR + MCFSIM_IMR); -} - -void mcf_maskimr(unsigned int mask) -{ - u16 imr; - imr = __raw_readw(MCF_MBAR + MCFSIM_IMR); - imr |= mask; - __raw_writew(imr, MCF_MBAR + MCFSIM_IMR); -} - -#else - -void mcf_setimr(int index) -{ - u32 imr; - imr = __raw_readl(MCF_MBAR + MCFSIM_IMR); - __raw_writel(imr | (0x1 << index), MCF_MBAR + MCFSIM_IMR); -} - -void mcf_clrimr(int index) -{ - u32 imr; - imr = __raw_readl(MCF_MBAR + MCFSIM_IMR); - __raw_writel(imr & ~(0x1 << index), MCF_MBAR + MCFSIM_IMR); -} - -void mcf_maskimr(unsigned int mask) -{ - u32 imr; - imr = __raw_readl(MCF_MBAR + MCFSIM_IMR); - imr |= mask; - __raw_writel(imr, MCF_MBAR + MCFSIM_IMR); -} - -#endif - -/* - * Interrupts can be "vectored" on the ColdFire cores that support this old - * interrupt controller. That is, the device raising the interrupt can also - * supply the vector number to interrupt through. The AVR register of the - * interrupt controller enables or disables this for each external interrupt, - * so provide generic support for this. Setting this up is out-of-band for - * the interrupt system API's, and needs to be done by the driver that - * supports this device. Very few devices actually use this. - */ -void mcf_autovector(int irq) -{ -#ifdef MCFSIM_AVR - if ((irq >= EIRQ1) && (irq <= EIRQ7)) { - u8 avec; - avec = __raw_readb(MCF_MBAR + MCFSIM_AVR); - avec |= (0x1 << (irq - EIRQ1 + 1)); - __raw_writeb(avec, MCF_MBAR + MCFSIM_AVR); - } -#endif -} - -static void intc_irq_mask(struct irq_data *d) -{ - if (mcf_irq2imr[d->irq]) - mcf_setimr(mcf_irq2imr[d->irq]); -} - -static void intc_irq_unmask(struct irq_data *d) -{ - if (mcf_irq2imr[d->irq]) - mcf_clrimr(mcf_irq2imr[d->irq]); -} - -static int intc_irq_set_type(struct irq_data *d, unsigned int type) -{ - return 0; -} - -static struct irq_chip intc_irq_chip = { - .name = "CF-INTC", - .irq_mask = intc_irq_mask, - .irq_unmask = intc_irq_unmask, - .irq_set_type = intc_irq_set_type, -}; - -void __init init_IRQ(void) -{ - int irq; - - init_vectors(); - mcf_maskimr(0xffffffff); - - for (irq = 0; (irq < NR_IRQS); irq++) { - set_irq_chip(irq, &intc_irq_chip); - set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH); - set_irq_handler(irq, handle_level_irq); - } -} - diff --git a/arch/m68knommu/platform/coldfire/pinmux.c b/arch/m68knommu/platform/coldfire/pinmux.c deleted file mode 100644 index 8c62b825939f..000000000000 --- a/arch/m68knommu/platform/coldfire/pinmux.c +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Coldfire generic GPIO pinmux support. - * - * (C) Copyright 2009, Steven King <sfking@fdwdc.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/kernel.h> - -#include <asm/pinmux.h> - -int mcf_pinmux_request(unsigned pinmux, unsigned func) -{ - return 0; -} - -void mcf_pinmux_release(unsigned pinmux, unsigned func) -{ -} diff --git a/arch/m68knommu/platform/coldfire/pit.c b/arch/m68knommu/platform/coldfire/pit.c deleted file mode 100644 index c2b980926bec..000000000000 --- a/arch/m68knommu/platform/coldfire/pit.c +++ /dev/null @@ -1,169 +0,0 @@ -/***************************************************************************/ - -/* - * pit.c -- Freescale ColdFire PIT timer. Currently this type of - * hardware timer only exists in the Freescale ColdFire - * 5270/5271, 5282 and 5208 CPUs. No doubt newer ColdFire - * family members will probably use it too. - * - * Copyright (C) 1999-2008, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com) - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/clockchips.h> -#include <asm/machdep.h> -#include <asm/io.h> -#include <asm/coldfire.h> -#include <asm/mcfpit.h> -#include <asm/mcfsim.h> - -/***************************************************************************/ - -/* - * By default use timer1 as the system clock timer. - */ -#define FREQ ((MCF_CLK / 2) / 64) -#define TA(a) (MCFPIT_BASE1 + (a)) -#define PIT_CYCLES_PER_JIFFY (FREQ / HZ) - -static u32 pit_cnt; - -/* - * Initialize the PIT timer. - * - * This is also called after resume to bring the PIT into operation again. - */ - -static void init_cf_pit_timer(enum clock_event_mode mode, - struct clock_event_device *evt) -{ - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - - __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR)); - __raw_writew(PIT_CYCLES_PER_JIFFY, TA(MCFPIT_PMR)); - __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | \ - MCFPIT_PCSR_OVW | MCFPIT_PCSR_RLD | \ - MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR)); - break; - - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_UNUSED: - - __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR)); - break; - - case CLOCK_EVT_MODE_ONESHOT: - - __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR)); - __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | \ - MCFPIT_PCSR_OVW | MCFPIT_PCSR_CLK64, \ - TA(MCFPIT_PCSR)); - break; - - case CLOCK_EVT_MODE_RESUME: - /* Nothing to do here */ - break; - } -} - -/* - * Program the next event in oneshot mode - * - * Delta is given in PIT ticks - */ -static int cf_pit_next_event(unsigned long delta, - struct clock_event_device *evt) -{ - __raw_writew(delta, TA(MCFPIT_PMR)); - return 0; -} - -struct clock_event_device cf_pit_clockevent = { - .name = "pit", - .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, - .set_mode = init_cf_pit_timer, - .set_next_event = cf_pit_next_event, - .shift = 32, - .irq = MCFINT_VECBASE + MCFINT_PIT1, -}; - - - -/***************************************************************************/ - -static irqreturn_t pit_tick(int irq, void *dummy) -{ - struct clock_event_device *evt = &cf_pit_clockevent; - u16 pcsr; - - /* Reset the ColdFire timer */ - pcsr = __raw_readw(TA(MCFPIT_PCSR)); - __raw_writew(pcsr | MCFPIT_PCSR_PIF, TA(MCFPIT_PCSR)); - - pit_cnt += PIT_CYCLES_PER_JIFFY; - evt->event_handler(evt); - return IRQ_HANDLED; -} - -/***************************************************************************/ - -static struct irqaction pit_irq = { - .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = pit_tick, -}; - -/***************************************************************************/ - -static cycle_t pit_read_clk(struct clocksource *cs) -{ - unsigned long flags; - u32 cycles; - u16 pcntr; - - local_irq_save(flags); - pcntr = __raw_readw(TA(MCFPIT_PCNTR)); - cycles = pit_cnt; - local_irq_restore(flags); - - return cycles + PIT_CYCLES_PER_JIFFY - pcntr; -} - -/***************************************************************************/ - -static struct clocksource pit_clk = { - .name = "pit", - .rating = 100, - .read = pit_read_clk, - .shift = 20, - .mask = CLOCKSOURCE_MASK(32), -}; - -/***************************************************************************/ - -void hw_timer_init(void) -{ - cf_pit_clockevent.cpumask = cpumask_of(smp_processor_id()); - cf_pit_clockevent.mult = div_sc(FREQ, NSEC_PER_SEC, 32); - cf_pit_clockevent.max_delta_ns = - clockevent_delta2ns(0xFFFF, &cf_pit_clockevent); - cf_pit_clockevent.min_delta_ns = - clockevent_delta2ns(0x3f, &cf_pit_clockevent); - clockevents_register_device(&cf_pit_clockevent); - - setup_irq(MCFINT_VECBASE + MCFINT_PIT1, &pit_irq); - - pit_clk.mult = clocksource_hz2mult(FREQ, pit_clk.shift); - clocksource_register(&pit_clk); -} - -/***************************************************************************/ diff --git a/arch/m68knommu/platform/coldfire/sltimers.c b/arch/m68knommu/platform/coldfire/sltimers.c deleted file mode 100644 index 0a1b937c3e18..000000000000 --- a/arch/m68knommu/platform/coldfire/sltimers.c +++ /dev/null @@ -1,145 +0,0 @@ -/***************************************************************************/ - -/* - * sltimers.c -- generic ColdFire slice timer support. - * - * Copyright (C) 2009-2010, Philippe De Muyter <phdm@macqel.be> - * based on - * timers.c -- generic ColdFire hardware timer support. - * Copyright (C) 1999-2008, Greg Ungerer <gerg@snapgear.com> - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/profile.h> -#include <linux/clocksource.h> -#include <asm/io.h> -#include <asm/traps.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfslt.h> -#include <asm/mcfsim.h> - -/***************************************************************************/ - -#ifdef CONFIG_HIGHPROFILE - -/* - * By default use Slice Timer 1 as the profiler clock timer. - */ -#define PA(a) (MCF_MBAR + MCFSLT_TIMER1 + (a)) - -/* - * Choose a reasonably fast profile timer. Make it an odd value to - * try and get good coverage of kernel operations. - */ -#define PROFILEHZ 1013 - -irqreturn_t mcfslt_profile_tick(int irq, void *dummy) -{ - /* Reset Slice Timer 1 */ - __raw_writel(MCFSLT_SSR_BE | MCFSLT_SSR_TE, PA(MCFSLT_SSR)); - if (current->pid) - profile_tick(CPU_PROFILING); - return IRQ_HANDLED; -} - -static struct irqaction mcfslt_profile_irq = { - .name = "profile timer", - .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = mcfslt_profile_tick, -}; - -void mcfslt_profile_init(void) -{ - printk(KERN_INFO "PROFILE: lodging TIMER 1 @ %dHz as profile timer\n", - PROFILEHZ); - - setup_irq(MCF_IRQ_PROFILER, &mcfslt_profile_irq); - - /* Set up TIMER 2 as high speed profile clock */ - __raw_writel(MCF_BUSCLK / PROFILEHZ - 1, PA(MCFSLT_STCNT)); - __raw_writel(MCFSLT_SCR_RUN | MCFSLT_SCR_IEN | MCFSLT_SCR_TEN, - PA(MCFSLT_SCR)); - -} - -#endif /* CONFIG_HIGHPROFILE */ - -/***************************************************************************/ - -/* - * By default use Slice Timer 0 as the system clock timer. - */ -#define TA(a) (MCF_MBAR + MCFSLT_TIMER0 + (a)) - -static u32 mcfslt_cycles_per_jiffy; -static u32 mcfslt_cnt; - -static irqreturn_t mcfslt_tick(int irq, void *dummy) -{ - /* Reset Slice Timer 0 */ - __raw_writel(MCFSLT_SSR_BE | MCFSLT_SSR_TE, TA(MCFSLT_SSR)); - mcfslt_cnt += mcfslt_cycles_per_jiffy; - return arch_timer_interrupt(irq, dummy); -} - -static struct irqaction mcfslt_timer_irq = { - .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = mcfslt_tick, -}; - -static cycle_t mcfslt_read_clk(struct clocksource *cs) -{ - unsigned long flags; - u32 cycles; - u16 scnt; - - local_irq_save(flags); - scnt = __raw_readl(TA(MCFSLT_SCNT)); - cycles = mcfslt_cnt; - local_irq_restore(flags); - - /* substract because slice timers count down */ - return cycles - scnt; -} - -static struct clocksource mcfslt_clk = { - .name = "slt", - .rating = 250, - .read = mcfslt_read_clk, - .shift = 20, - .mask = CLOCKSOURCE_MASK(32), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -void hw_timer_init(void) -{ - mcfslt_cycles_per_jiffy = MCF_BUSCLK / HZ; - /* - * The coldfire slice timer (SLT) runs from STCNT to 0 included, - * then STCNT again and so on. It counts thus actually - * STCNT + 1 steps for 1 tick, not STCNT. So if you want - * n cycles, initialize STCNT with n - 1. - */ - __raw_writel(mcfslt_cycles_per_jiffy - 1, TA(MCFSLT_STCNT)); - __raw_writel(MCFSLT_SCR_RUN | MCFSLT_SCR_IEN | MCFSLT_SCR_TEN, - TA(MCFSLT_SCR)); - /* initialize mcfslt_cnt knowing that slice timers count down */ - mcfslt_cnt = mcfslt_cycles_per_jiffy; - - setup_irq(MCF_IRQ_TIMER, &mcfslt_timer_irq); - - mcfslt_clk.mult = clocksource_hz2mult(MCF_BUSCLK, mcfslt_clk.shift); - clocksource_register(&mcfslt_clk); - -#ifdef CONFIG_HIGHPROFILE - mcfslt_profile_init(); -#endif -} diff --git a/arch/m68knommu/platform/coldfire/timers.c b/arch/m68knommu/platform/coldfire/timers.c deleted file mode 100644 index 60242f65fea9..000000000000 --- a/arch/m68knommu/platform/coldfire/timers.c +++ /dev/null @@ -1,174 +0,0 @@ -/***************************************************************************/ - -/* - * timers.c -- generic ColdFire hardware timer support. - * - * Copyright (C) 1999-2008, Greg Ungerer <gerg@snapgear.com> - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/profile.h> -#include <linux/clocksource.h> -#include <asm/io.h> -#include <asm/traps.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcftimer.h> -#include <asm/mcfsim.h> - -/***************************************************************************/ - -/* - * By default use timer1 as the system clock timer. - */ -#define FREQ (MCF_BUSCLK / 16) -#define TA(a) (MCFTIMER_BASE1 + (a)) - -/* - * These provide the underlying interrupt vector support. - * Unfortunately it is a little different on each ColdFire. - */ -void coldfire_profile_init(void); - -#if defined(CONFIG_M532x) -#define __raw_readtrr __raw_readl -#define __raw_writetrr __raw_writel -#else -#define __raw_readtrr __raw_readw -#define __raw_writetrr __raw_writew -#endif - -static u32 mcftmr_cycles_per_jiffy; -static u32 mcftmr_cnt; - -/***************************************************************************/ - -static irqreturn_t mcftmr_tick(int irq, void *dummy) -{ - /* Reset the ColdFire timer */ - __raw_writeb(MCFTIMER_TER_CAP | MCFTIMER_TER_REF, TA(MCFTIMER_TER)); - - mcftmr_cnt += mcftmr_cycles_per_jiffy; - return arch_timer_interrupt(irq, dummy); -} - -/***************************************************************************/ - -static struct irqaction mcftmr_timer_irq = { - .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = mcftmr_tick, -}; - -/***************************************************************************/ - -static cycle_t mcftmr_read_clk(struct clocksource *cs) -{ - unsigned long flags; - u32 cycles; - u16 tcn; - - local_irq_save(flags); - tcn = __raw_readw(TA(MCFTIMER_TCN)); - cycles = mcftmr_cnt; - local_irq_restore(flags); - - return cycles + tcn; -} - -/***************************************************************************/ - -static struct clocksource mcftmr_clk = { - .name = "tmr", - .rating = 250, - .read = mcftmr_read_clk, - .shift = 20, - .mask = CLOCKSOURCE_MASK(32), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -/***************************************************************************/ - -void hw_timer_init(void) -{ - __raw_writew(MCFTIMER_TMR_DISABLE, TA(MCFTIMER_TMR)); - mcftmr_cycles_per_jiffy = FREQ / HZ; - /* - * The coldfire timer runs from 0 to TRR included, then 0 - * again and so on. It counts thus actually TRR + 1 steps - * for 1 tick, not TRR. So if you want n cycles, - * initialize TRR with n - 1. - */ - __raw_writetrr(mcftmr_cycles_per_jiffy - 1, TA(MCFTIMER_TRR)); - __raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 | - MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, TA(MCFTIMER_TMR)); - - mcftmr_clk.mult = clocksource_hz2mult(FREQ, mcftmr_clk.shift); - clocksource_register(&mcftmr_clk); - - setup_irq(MCF_IRQ_TIMER, &mcftmr_timer_irq); - -#ifdef CONFIG_HIGHPROFILE - coldfire_profile_init(); -#endif -} - -/***************************************************************************/ -#ifdef CONFIG_HIGHPROFILE -/***************************************************************************/ - -/* - * By default use timer2 as the profiler clock timer. - */ -#define PA(a) (MCFTIMER_BASE2 + (a)) - -/* - * Choose a reasonably fast profile timer. Make it an odd value to - * try and get good coverage of kernel operations. - */ -#define PROFILEHZ 1013 - -/* - * Use the other timer to provide high accuracy profiling info. - */ -irqreturn_t coldfire_profile_tick(int irq, void *dummy) -{ - /* Reset ColdFire timer2 */ - __raw_writeb(MCFTIMER_TER_CAP | MCFTIMER_TER_REF, PA(MCFTIMER_TER)); - if (current->pid) - profile_tick(CPU_PROFILING); - return IRQ_HANDLED; -} - -/***************************************************************************/ - -static struct irqaction coldfire_profile_irq = { - .name = "profile timer", - .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = coldfire_profile_tick, -}; - -void coldfire_profile_init(void) -{ - printk(KERN_INFO "PROFILE: lodging TIMER2 @ %dHz as profile timer\n", - PROFILEHZ); - - /* Set up TIMER 2 as high speed profile clock */ - __raw_writew(MCFTIMER_TMR_DISABLE, PA(MCFTIMER_TMR)); - - __raw_writetrr(((MCF_BUSCLK / 16) / PROFILEHZ), PA(MCFTIMER_TRR)); - __raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 | - MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, PA(MCFTIMER_TMR)); - - setup_irq(MCF_IRQ_PROFILER, &coldfire_profile_irq); -} - -/***************************************************************************/ -#endif /* CONFIG_HIGHPROFILE */ -/***************************************************************************/ diff --git a/arch/m68knommu/platform/coldfire/vectors.c b/arch/m68knommu/platform/coldfire/vectors.c deleted file mode 100644 index a21d3f870b7a..000000000000 --- a/arch/m68knommu/platform/coldfire/vectors.c +++ /dev/null @@ -1,80 +0,0 @@ -/***************************************************************************/ - -/* - * linux/arch/m68knommu/platform/coldfire/vectors.c - * - * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com> - */ - -/***************************************************************************/ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/irq.h> -#include <asm/traps.h> -#include <asm/machdep.h> -#include <asm/coldfire.h> -#include <asm/mcfsim.h> -#include <asm/mcfwdebug.h> - -/***************************************************************************/ - -#ifdef TRAP_DBG_INTERRUPT - -asmlinkage void dbginterrupt_c(struct frame *fp) -{ - extern void dump(struct pt_regs *fp); - printk(KERN_DEBUG "%s(%d): BUS ERROR TRAP\n", __FILE__, __LINE__); - dump((struct pt_regs *) fp); - asm("halt"); -} - -#endif - -/***************************************************************************/ - -extern e_vector *_ramvec; - -void set_evector(int vecnum, void (*handler)(void)) -{ - if (vecnum >= 0 && vecnum <= 255) - _ramvec[vecnum] = handler; -} - -/***************************************************************************/ - -/* Assembler routines */ -asmlinkage void buserr(void); -asmlinkage void trap(void); -asmlinkage void system_call(void); -asmlinkage void inthandler(void); - -void __init init_vectors(void) -{ - int i; - - /* - * There is a common trap handler and common interrupt - * handler that handle almost every vector. We treat - * the system call and bus error special, they get their - * own first level handlers. - */ - for (i = 3; (i <= 23); i++) - _ramvec[i] = trap; - for (i = 33; (i <= 63); i++) - _ramvec[i] = trap; - for (i = 24; (i <= 31); i++) - _ramvec[i] = inthandler; - for (i = 64; (i < 255); i++) - _ramvec[i] = inthandler; - _ramvec[255] = 0; - - _ramvec[2] = buserr; - _ramvec[32] = system_call; - -#ifdef TRAP_DBG_INTERRUPT - _ramvec[12] = dbginterrupt; -#endif -} - -/***************************************************************************/ -- cgit v1.2.3 From 6df59a84eccd4cad7fcefda3e0c5e55239a3b2dd Mon Sep 17 00:00:00 2001 From: Steffen Klassert <steffen.klassert@secunet.com> Date: Fri, 25 Mar 2011 01:28:45 -0700 Subject: route: Take the right src and dst addresses in ip_route_newports When we set up the flow informations in ip_route_newports(), we take the address informations from the the rt_key_src and rt_key_dst fields of the rtable. They appear to be empty. So take the address informations from rt_src and rt_dst instead. This issue was introduced by commit 5e2b61f78411be25f0b84f97d5b5d312f184dfd1 ("ipv4: Remove flowi from struct rtable.") Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- include/net/route.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/net/route.h b/include/net/route.h index dc102445ec47..f88429cad52a 100644 --- a/include/net/route.h +++ b/include/net/route.h @@ -270,8 +270,8 @@ static inline struct rtable *ip_route_newports(struct rtable *rt, struct flowi4 fl4 = { .flowi4_oif = rt->rt_oif, .flowi4_mark = rt->rt_mark, - .daddr = rt->rt_key_dst, - .saddr = rt->rt_key_src, + .daddr = rt->rt_dst, + .saddr = rt->rt_src, .flowi4_tos = rt->rt_tos, .flowi4_proto = protocol, .fl4_sport = sport, -- cgit v1.2.3 From 3674f19dabd15f9541079a588149a370d888f4e6 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: Fri, 25 Mar 2011 17:51:54 +1100 Subject: ALSA: vmalloc buffers should use normal mmap It's a big no-no to use pgprot_noncached() when mmap'ing such buffers into userspace since they are mapped cachable in kernel space. This can cause all sort of interesting things ranging from to garbled sound to lockups on various architectures. I've observed that usb-audio is broken on powerpc 4xx for example because of that. Also remove the now unused snd_pcm_lib_mmap_noncached(). It's an arch business to know when to use uncached mappings, there's already hacks for MIPS inside snd_pcm_default_mmap() and other archs are supposed to use dma_mmap_coherent(). (See my separate patch that adds dma_mmap_coherent() to powerpc) Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- include/sound/pcm.h | 4 +--- sound/core/pcm_native.c | 9 --------- 2 files changed, 1 insertion(+), 12 deletions(-) diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 430a9cc045e2..e1bad1130616 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -1031,9 +1031,7 @@ int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_s #define snd_pcm_lib_mmap_iomem NULL #endif -int snd_pcm_lib_mmap_noncached(struct snd_pcm_substream *substream, - struct vm_area_struct *area); -#define snd_pcm_lib_mmap_vmalloc snd_pcm_lib_mmap_noncached +#define snd_pcm_lib_mmap_vmalloc NULL static inline void snd_pcm_limit_isa_dma_size(int dma, size_t *max) { diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index ae42b6509ce4..fe5c8036beba 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3201,15 +3201,6 @@ int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, EXPORT_SYMBOL(snd_pcm_lib_mmap_iomem); #endif /* SNDRV_PCM_INFO_MMAP */ -/* mmap callback with pgprot_noncached */ -int snd_pcm_lib_mmap_noncached(struct snd_pcm_substream *substream, - struct vm_area_struct *area) -{ - area->vm_page_prot = pgprot_noncached(area->vm_page_prot); - return snd_pcm_default_mmap(substream, area); -} -EXPORT_SYMBOL(snd_pcm_lib_mmap_noncached); - /* * mmap DMA buffer */ -- cgit v1.2.3 From 45daae575e08bbf7405c5a3633e956fa364d1b4f Mon Sep 17 00:00:00 2001 From: Ingo Molnar <mingo@elte.hu> Date: Fri, 25 Mar 2011 10:24:23 +0100 Subject: perf, x86: Complain louder about BIOSen corrupting CPU/PMU state and continue Eric Dumazet reported that hardware PMU events do not work on his system, due to the BIOS corrupting PMU state: Performance Events: PEBS fmt0+, Core2 events, Broken BIOS detected, using software events only. [Firmware Bug]: the BIOS has corrupted hw-PMU resources (MSR 186 is 43003c) Linus suggested that we continue in the face of such BIOS-induced CPU state corruption: http://lkml.org/lkml/2011/3/24/608 Such BIOSes will have to be fixed - Linux developers rely on a working and fully capable PMU and the BIOS interfering with the CPU's PMU state is simply not acceptable. So this patch changes perf to continue when it detects such BIOS interaction, some hardware events may be unreliable due to the BIOS writing and re-writing them - there's not much the kernel can do about that but to detect the corruption and report it. Reported-and-tested-by: Eric Dumazet <eric.dumazet@gmail.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/cpu/perf_event.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index ec46eea0c4ed..eb00677ee2ae 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -500,12 +500,17 @@ static bool check_hw_exists(void) return true; bios_fail: - printk(KERN_CONT "Broken BIOS detected, using software events only.\n"); + /* + * We still allow the PMU driver to operate: + */ + printk(KERN_CONT "Broken BIOS detected, complain to your hardware vendor.\n"); printk(KERN_ERR FW_BUG "the BIOS has corrupted hw-PMU resources (MSR %x is %Lx)\n", reg, val); - return false; + + return true; msr_fail: printk(KERN_CONT "Broken PMU hardware detected, using software events only.\n"); + return false; } -- cgit v1.2.3 From 677cd904aba939bc4cfdc3c1eada8ec46582127e Mon Sep 17 00:00:00 2001 From: David Henningsson <david.henningsson@canonical.com> Date: Mon, 7 Feb 2011 15:19:34 +0100 Subject: ALSA: HDA: New AD1984A model for Dell Precision R5500 For codec AD1984A, add a new model to support Dell Precision R5500 or the microphone jack won't work correctly. BugLink: http://bugs.launchpad.net/bugs/741516 Tested-by: Kent Baxley <kent.baxley@canonical.com> Cc: stable@kernel.org Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/pci/hda/patch_analog.c | 89 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index 734c6ee55d8a..2942d2a9ea10 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -4255,6 +4255,84 @@ static int ad1984a_thinkpad_init(struct hda_codec *codec) return 0; } +/* + * Precision R5500 + * 0x12 - HP/line-out + * 0x13 - speaker (mono) + * 0x15 - mic-in + */ + +static struct hda_verb ad1984a_precision_verbs[] = { + /* Unmute main output path */ + {0x03, AC_VERB_SET_AMP_GAIN_MUTE, 0x27}, /* 0dB */ + {0x21, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE + 0x1f}, /* 0dB */ + {0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(5) + 0x17}, /* 0dB */ + /* Analog mixer; mute as default */ + {0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)}, + {0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(1)}, + {0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(2)}, + {0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(3)}, + {0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(4)}, + /* Select mic as input */ + {0x0c, AC_VERB_SET_CONNECT_SEL, 0x1}, + {0x0c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE + 0x27}, /* 0dB */ + /* Configure as mic */ + {0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF80}, + {0x15, AC_VERB_SET_AMP_GAIN_MUTE, 0x7002}, /* raise mic as default */ + /* HP unmute */ + {0x12, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE}, + /* turn on EAPD */ + {0x13, AC_VERB_SET_EAPD_BTLENABLE, 0x02}, + /* unsolicited event for pin-sense */ + {0x12, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1884A_HP_EVENT}, + { } /* end */ +}; + +static struct snd_kcontrol_new ad1984a_precision_mixers[] = { + HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT), + HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT), + HDA_CODEC_VOLUME("PCM Playback Volume", 0x20, 0x5, HDA_INPUT), + HDA_CODEC_MUTE("PCM Playback Switch", 0x20, 0x5, HDA_INPUT), + HDA_CODEC_VOLUME("Mic Playback Volume", 0x20, 0x01, HDA_INPUT), + HDA_CODEC_MUTE("Mic Playback Switch", 0x20, 0x01, HDA_INPUT), + HDA_CODEC_VOLUME("Mic Boost Volume", 0x15, 0x0, HDA_INPUT), + HDA_CODEC_MUTE("Front Playback Switch", 0x12, 0x0, HDA_OUTPUT), + HDA_CODEC_VOLUME("Speaker Playback Volume", 0x13, 0x0, HDA_OUTPUT), + HDA_CODEC_VOLUME("Capture Volume", 0x0c, 0x0, HDA_OUTPUT), + HDA_CODEC_MUTE("Capture Switch", 0x0c, 0x0, HDA_OUTPUT), + { } /* end */ +}; + + +/* mute internal speaker if HP is plugged */ +static void ad1984a_precision_automute(struct hda_codec *codec) +{ + unsigned int present; + + present = snd_hda_jack_detect(codec, 0x12); + snd_hda_codec_amp_stereo(codec, 0x13, HDA_OUTPUT, 0, + HDA_AMP_MUTE, present ? HDA_AMP_MUTE : 0); +} + + +/* unsolicited event for HP jack sensing */ +static void ad1984a_precision_unsol_event(struct hda_codec *codec, + unsigned int res) +{ + if ((res >> 26) != AD1884A_HP_EVENT) + return; + ad1984a_precision_automute(codec); +} + +/* initialize jack-sensing, too */ +static int ad1984a_precision_init(struct hda_codec *codec) +{ + ad198x_init(codec); + ad1984a_precision_automute(codec); + return 0; +} + + /* * HP Touchsmart * port-A (0x11) - front hp-out @@ -4384,6 +4462,7 @@ enum { AD1884A_MOBILE, AD1884A_THINKPAD, AD1984A_TOUCHSMART, + AD1984A_PRECISION, AD1884A_MODELS }; @@ -4393,9 +4472,11 @@ static const char * const ad1884a_models[AD1884A_MODELS] = { [AD1884A_MOBILE] = "mobile", [AD1884A_THINKPAD] = "thinkpad", [AD1984A_TOUCHSMART] = "touchsmart", + [AD1984A_PRECISION] = "precision", }; static struct snd_pci_quirk ad1884a_cfg_tbl[] = { + SND_PCI_QUIRK(0x1028, 0x04ac, "Precision R5500", AD1984A_PRECISION), SND_PCI_QUIRK(0x103c, 0x3030, "HP", AD1884A_MOBILE), SND_PCI_QUIRK(0x103c, 0x3037, "HP 2230s", AD1884A_LAPTOP), SND_PCI_QUIRK(0x103c, 0x3056, "HP", AD1884A_MOBILE), @@ -4489,6 +4570,14 @@ static int patch_ad1884a(struct hda_codec *codec) codec->patch_ops.unsol_event = ad1984a_thinkpad_unsol_event; codec->patch_ops.init = ad1984a_thinkpad_init; break; + case AD1984A_PRECISION: + spec->mixers[0] = ad1984a_precision_mixers; + spec->init_verbs[spec->num_init_verbs++] = + ad1984a_precision_verbs; + spec->multiout.dig_out_nid = 0; + codec->patch_ops.unsol_event = ad1984a_precision_unsol_event; + codec->patch_ops.init = ad1984a_precision_init; + break; case AD1984A_TOUCHSMART: spec->mixers[0] = ad1984a_touchsmart_mixers; spec->init_verbs[0] = ad1984a_touchsmart_verbs; -- cgit v1.2.3 From 2092e6be82ec71ecbf5a8ceeef004bbcbdb78812 Mon Sep 17 00:00:00 2001 From: Steven Rostedt <srostedt@redhat.com> Date: Thu, 17 Mar 2011 15:21:06 -0400 Subject: WARN_ON_SMP(): Allow use in if() statements on UP Both WARN_ON() and WARN_ON_SMP() should be able to be used in an if statement. if (WARN_ON_SMP(foo)) { ... } Because WARN_ON_SMP() is defined as a do { } while (0) on UP, it can not be used this way. Convert it to the same form that WARN_ON() is, even when CONFIG_SMP is off. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Darren Hart <dvhart@linux.intel.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <20110317192208.444147791@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- include/asm-generic/bug.h | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index c2c9ba032d46..f2d2faf4d9ae 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -165,10 +165,36 @@ extern void warn_slowpath_null(const char *file, const int line); #define WARN_ON_RATELIMIT(condition, state) \ WARN_ON((condition) && __ratelimit(state)) +/* + * WARN_ON_SMP() is for cases that the warning is either + * meaningless for !SMP or may even cause failures. + * This is usually used for cases that we have + * WARN_ON(!spin_is_locked(&lock)) checks, as spin_is_locked() + * returns 0 for uniprocessor settings. + * It can also be used with values that are only defined + * on SMP: + * + * struct foo { + * [...] + * #ifdef CONFIG_SMP + * int bar; + * #endif + * }; + * + * void func(struct foo *zoot) + * { + * WARN_ON_SMP(!zoot->bar); + * + * For CONFIG_SMP, WARN_ON_SMP() should act the same as WARN_ON(), + * and should be a nop and return false for uniprocessor. + * + * if (WARN_ON_SMP(x)) returns true only when CONFIG_SMP is set + * and x is true. + */ #ifdef CONFIG_SMP # define WARN_ON_SMP(x) WARN_ON(x) #else -# define WARN_ON_SMP(x) do { } while (0) +# define WARN_ON_SMP(x) ({0;}) #endif #endif -- cgit v1.2.3 From 29096202176ceaa5016a17ea2dd1aea19a4e90e2 Mon Sep 17 00:00:00 2001 From: Steven Rostedt <srostedt@redhat.com> Date: Thu, 17 Mar 2011 15:21:07 -0400 Subject: futex: Fix WARN_ON() test for UP An update of the futex code had a WARN_ON(!spin_is_locked(q->lock_ptr)) But on UP, spin_is_locked() is always false, and will trigger this warning, and even worse, it will exit the function without doing the necessary work. Converting this to a WARN_ON_SMP() fixes the problem. Reported-by: Richard Weinberger <richard@nod.at> Tested-by: Richard Weinberger <richard@nod.at> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Darren Hart <dvhart@linux.intel.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> LKML-Reference: <20110317192208.682654502@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- kernel/futex.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/futex.c b/kernel/futex.c index bda415715382..823aae3e2a96 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -782,8 +782,8 @@ static void __unqueue_futex(struct futex_q *q) { struct futex_hash_bucket *hb; - if (WARN_ON(!q->lock_ptr || !spin_is_locked(q->lock_ptr) - || plist_node_empty(&q->list))) + if (WARN_ON_SMP(!q->lock_ptr || !spin_is_locked(q->lock_ptr)) + || WARN_ON(plist_node_empty(&q->list))) return; hb = container_of(q->lock_ptr, struct futex_hash_bucket, lock); -- cgit v1.2.3 From 7bf76c33e9a1ecb2a15f1a066d4e032b5d0922a7 Mon Sep 17 00:00:00 2001 From: Eliot Blennerhassett <eblennerhassett@audioscience.com> Date: Fri, 25 Mar 2011 15:25:46 +1300 Subject: ALSA: asihpi - Support single-rate no-SRC cards Cards without settable local samplerate and without SRC still must have a valid samplerate. This fixed rate is determined by reading the current rate for the card. Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/pci/asihpi/asihpi.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c index 0ac1f98d91a1..22606e3b08f4 100644 --- a/sound/pci/asihpi/asihpi.c +++ b/sound/pci/asihpi/asihpi.c @@ -381,13 +381,13 @@ static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi, "No local sampleclock, err %d\n", err); } - for (idx = 0; idx < 100; idx++) { - if (hpi_sample_clock_query_local_rate( - h_control, idx, &sample_rate)) { - if (!idx) - snd_printk(KERN_ERR - "Local rate query failed\n"); - + for (idx = -1; idx < 100; idx++) { + if (idx == -1) { + if (hpi_sample_clock_get_sample_rate(h_control, + &sample_rate)) + continue; + } else if (hpi_sample_clock_query_local_rate(h_control, + idx, &sample_rate)) { break; } @@ -440,8 +440,6 @@ static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi, } } - /* printk(KERN_INFO "Supported rates %X %d %d\n", - rates, rate_min, rate_max); */ pcmhw->rates = rates; pcmhw->rate_min = rate_min; pcmhw->rate_max = rate_max; -- cgit v1.2.3 From 26aebef420f8036213419b8a46e3a07db51439cd Mon Sep 17 00:00:00 2001 From: Eliot Blennerhassett <eblennerhassett@audioscience.com> Date: Fri, 25 Mar 2011 15:25:47 +1300 Subject: ALSA: asihpi - Improve non-busmaster adapter operation Make playback silence callback a no-op, card automatically outputs silence when written data runs out. Increasing update interval and thus minimum period avoids xrun on startup or because of timer jitter. Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/pci/asihpi/asihpi.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c index 22606e3b08f4..c90d77ad681b 100644 --- a/sound/pci/asihpi/asihpi.c +++ b/sound/pci/asihpi/asihpi.c @@ -1012,6 +1012,7 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream) snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, card->update_interval_frames); + snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, card->update_interval_frames * 2, UINT_MAX); @@ -1054,7 +1055,7 @@ static int snd_card_asihpi_playback_copy(struct snd_pcm_substream *substream, hpi_handle_error(hpi_outstream_write_buf(dpcm->h_stream, runtime->dma_area, len, &dpcm->format)); - dpcm->pcm_buf_host_rw_ofs = dpcm->pcm_buf_host_rw_ofs + len; + dpcm->pcm_buf_host_rw_ofs += len; return 0; } @@ -1064,16 +1065,11 @@ static int snd_card_asihpi_playback_silence(struct snd_pcm_substream * snd_pcm_uframes_t pos, snd_pcm_uframes_t count) { - unsigned int len; - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_card_asihpi_pcm *dpcm = runtime->private_data; - - len = frames_to_bytes(runtime, count); - VPRINTK1(KERN_INFO "playback silence %u bytes\n", len); - - memset(runtime->dma_area, 0, len); - hpi_handle_error(hpi_outstream_write_buf(dpcm->h_stream, - runtime->dma_area, len, &dpcm->format)); + /* Usually writes silence to DMA buffer, which should be overwritten + by real audio later. Our fifos cannot be overwritten, and are not + free-running DMAs. Silence is output on fifo underflow. + This callback is still required to allow the copy callback to be used. + */ return 0; } @@ -2885,6 +2881,9 @@ static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev, if (err) asihpi->update_interval_frames = 512; + if (!asihpi->support_mmap) + asihpi->update_interval_frames *= 2; + hpi_handle_error(hpi_instream_open(asihpi->adapter_index, 0, &h_stream)); -- cgit v1.2.3 From b2e65c8e9133218eb28c30e79ddd3d66d4666ba0 Mon Sep 17 00:00:00 2001 From: Eliot Blennerhassett <eblennerhassett@audioscience.com> Date: Fri, 25 Mar 2011 15:25:48 +1300 Subject: ALSA: asihpi - Update verbose debug print macros Replace local VPRINTK1 with snd_printdd. Create local snd_printddd instead of VPRINTK2 for most verbose debug. In most cases let snd_printk supply default level for messages. Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/pci/asihpi/asihpi.c | 100 ++++++++++++++++++++++------------------------ 1 file changed, 47 insertions(+), 53 deletions(-) diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c index c90d77ad681b..f53a31e939c1 100644 --- a/sound/pci/asihpi/asihpi.c +++ b/sound/pci/asihpi/asihpi.c @@ -22,21 +22,6 @@ * for any purpose including commercial applications. */ -/* >0: print Hw params, timer vars. >1: print stream write/copy sizes */ -#define REALLY_VERBOSE_LOGGING 0 - -#if REALLY_VERBOSE_LOGGING -#define VPRINTK1 snd_printd -#else -#define VPRINTK1(...) -#endif - -#if REALLY_VERBOSE_LOGGING > 1 -#define VPRINTK2 snd_printd -#else -#define VPRINTK2(...) -#endif - #include "hpi_internal.h" #include "hpimsginit.h" #include "hpioctl.h" @@ -57,11 +42,25 @@ #include <sound/tlv.h> #include <sound/hwdep.h> - MODULE_LICENSE("GPL"); MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>"); MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx"); +#if defined CONFIG_SND_DEBUG_VERBOSE +/** + * snd_printddd - very verbose debug printk + * @format: format string + * + * Works like snd_printk() for debugging purposes. + * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set. + * Must set snd module debug parameter to 3 to enable at runtime. + */ +#define snd_printddd(format, args...) \ + __snd_printk(3, __FILE__, __LINE__, format, ##args) +#else +#define snd_printddd(format, args...) do { } while (0) +#endif + static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; @@ -289,7 +288,6 @@ static u16 handle_error(u16 err, int line, char *filename) #define hpi_handle_error(x) handle_error(x, __LINE__, __FILE__) /***************************** GENERAL PCM ****************/ -#if REALLY_VERBOSE_LOGGING static void print_hwparams(struct snd_pcm_hw_params *p) { snd_printd("HWPARAMS \n"); @@ -304,9 +302,6 @@ static void print_hwparams(struct snd_pcm_hw_params *p) snd_printd("periods %d \n", params_periods(p)); snd_printd("buffer_size %d \n", params_buffer_size(p)); } -#else -#define print_hwparams(x) -#endif static snd_pcm_format_t hpi_to_alsa_formats[] = { -1, /* INVALID */ @@ -464,7 +459,7 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream, if (err) return err; - VPRINTK1(KERN_INFO "format %d, %d chans, %d_hz\n", + snd_printdd("format %d, %d chans, %d_hz\n", format, params_channels(params), params_rate(params)); @@ -487,13 +482,12 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream, err = hpi_stream_host_buffer_attach(dpcm->h_stream, params_buffer_bytes(params), runtime->dma_addr); if (err == 0) { - VPRINTK1(KERN_INFO + snd_printdd( "stream_host_buffer_attach succeeded %u %lu\n", params_buffer_bytes(params), (unsigned long)runtime->dma_addr); } else { - snd_printd(KERN_INFO - "stream_host_buffer_attach error %d\n", + snd_printd("stream_host_buffer_attach error %d\n", err); return -ENOMEM; } @@ -502,7 +496,7 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream, &dpcm->hpi_buffer_attached, NULL, NULL, NULL); - VPRINTK1(KERN_INFO "stream_host_buffer_attach status 0x%x\n", + snd_printdd("stream_host_buffer_attach status 0x%x\n", dpcm->hpi_buffer_attached); } bytes_per_sec = params_rate(params) * params_channels(params); @@ -515,7 +509,7 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream, dpcm->bytes_per_sec = bytes_per_sec; dpcm->buffer_bytes = params_buffer_bytes(params); dpcm->period_bytes = params_period_bytes(params); - VPRINTK1(KERN_INFO "buffer_bytes=%d, period_bytes=%d, bps=%d\n", + snd_printdd("buffer_bytes=%d, period_bytes=%d, bps=%d\n", dpcm->buffer_bytes, dpcm->period_bytes, bytes_per_sec); return 0; @@ -571,7 +565,7 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream, struct snd_pcm_substream *s; u16 e; - VPRINTK1(KERN_INFO "%c%d trigger\n", + snd_printdd("%c%d trigger\n", SCHR(substream->stream), substream->number); switch (cmd) { case SNDRV_PCM_TRIGGER_START: @@ -595,7 +589,7 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream, * data?? */ unsigned int preload = ds->period_bytes * 1; - VPRINTK2(KERN_INFO "%d preload x%x\n", s->number, preload); + snd_printddd("%d preload x%x\n", s->number, preload); hpi_handle_error(hpi_outstream_write_buf( ds->h_stream, &runtime->dma_area[0], @@ -605,7 +599,7 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream, } if (card->support_grouping) { - VPRINTK1(KERN_INFO "\t%c%d group\n", + snd_printdd("\t%c%d group\n", SCHR(s->stream), s->number); e = hpi_stream_group_add( @@ -620,7 +614,7 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream, } else break; } - VPRINTK1(KERN_INFO "start\n"); + snd_printdd("start\n"); /* start the master stream */ snd_card_asihpi_pcm_timer_start(substream); if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) || @@ -642,14 +636,14 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream, s->runtime->status->state = SNDRV_PCM_STATE_SETUP; if (card->support_grouping) { - VPRINTK1(KERN_INFO "\t%c%d group\n", + snd_printdd("\t%c%d group\n", SCHR(s->stream), s->number); snd_pcm_trigger_done(s, substream); } else break; } - VPRINTK1(KERN_INFO "stop\n"); + snd_printdd("stop\n"); /* _prepare and _hwparams reset the stream */ hpi_handle_error(hpi_stream_stop(dpcm->h_stream)); @@ -662,12 +656,12 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream, break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - VPRINTK1(KERN_INFO "pause release\n"); + snd_printdd("pause release\n"); hpi_handle_error(hpi_stream_start(dpcm->h_stream)); snd_card_asihpi_pcm_timer_start(substream); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - VPRINTK1(KERN_INFO "pause\n"); + snd_printdd("pause\n"); snd_card_asihpi_pcm_timer_stop(substream); hpi_handle_error(hpi_stream_stop(dpcm->h_stream)); break; @@ -739,7 +733,7 @@ static void snd_card_asihpi_timer_function(unsigned long data) u16 state; u32 buffer_size, bytes_avail, samples_played, on_card_bytes; - VPRINTK1(KERN_INFO "%c%d snd_card_asihpi_timer_function\n", + snd_printdd("%c%d snd_card_asihpi_timer_function\n", SCHR(substream->stream), substream->number); /* find minimum newdata and buffer pos in group */ @@ -768,10 +762,10 @@ static void snd_card_asihpi_timer_function(unsigned long data) if ((bytes_avail == 0) && (on_card_bytes < ds->pcm_buf_host_rw_ofs)) { hpi_handle_error(hpi_stream_start(ds->h_stream)); - VPRINTK1(KERN_INFO "P%d start\n", s->number); + snd_printdd("P%d start\n", s->number); } } else if (state == HPI_STATE_DRAINED) { - VPRINTK1(KERN_WARNING "P%d drained\n", + snd_printd(KERN_WARNING "P%d drained\n", s->number); /*snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN); continue; */ @@ -792,13 +786,13 @@ static void snd_card_asihpi_timer_function(unsigned long data) newdata); } - VPRINTK1(KERN_INFO "PB timer hw_ptr x%04lX, appl_ptr x%04lX\n", + snd_printdd("hw_ptr x%04lX, appl_ptr x%04lX\n", (unsigned long)frames_to_bytes(runtime, runtime->status->hw_ptr), (unsigned long)frames_to_bytes(runtime, runtime->control->appl_ptr)); - VPRINTK1(KERN_INFO "%d %c%d S=%d, rw=%04X, dma=x%04X, left=x%04X," + snd_printdd("%d %c%d S=%d, rw=%04X, dma=x%04X, left=x%04X," " aux=x%04X space=x%04X\n", loops, SCHR(s->stream), s->number, state, ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs, (int)bytes_avail, @@ -820,7 +814,7 @@ static void snd_card_asihpi_timer_function(unsigned long data) next_jiffies = max(next_jiffies, 1U); dpcm->timer.expires = jiffies + next_jiffies; - VPRINTK1(KERN_INFO "jif %d buf pos x%04X newdata x%04X xfer x%04X\n", + snd_printdd("jif %d buf pos x%04X newdata x%04X xfer x%04X\n", next_jiffies, pcm_buf_dma_ofs, newdata, xfercount); snd_pcm_group_for_each_entry(s, substream) { @@ -835,7 +829,7 @@ static void snd_card_asihpi_timer_function(unsigned long data) if (xfercount && (on_card_bytes <= ds->period_bytes)) { if (card->support_mmap) { if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) { - VPRINTK2(KERN_INFO "P%d write x%04x\n", + snd_printddd("P%d write x%04x\n", s->number, ds->period_bytes); hpi_handle_error( @@ -846,7 +840,7 @@ static void snd_card_asihpi_timer_function(unsigned long data) xfercount, &ds->format)); } else { - VPRINTK2(KERN_INFO "C%d read x%04x\n", + snd_printddd("C%d read x%04x\n", s->number, xfercount); hpi_handle_error( @@ -869,7 +863,7 @@ static void snd_card_asihpi_timer_function(unsigned long data) static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg) { - /* snd_printd(KERN_INFO "Playback ioctl %d\n", cmd); */ + snd_printdd(KERN_INFO "Playback ioctl %d\n", cmd); return snd_pcm_lib_ioctl(substream, cmd, arg); } @@ -879,7 +873,7 @@ static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream * struct snd_pcm_runtime *runtime = substream->runtime; struct snd_card_asihpi_pcm *dpcm = runtime->private_data; - VPRINTK1(KERN_INFO "playback prepare %d\n", substream->number); + snd_printdd("playback prepare %d\n", substream->number); hpi_handle_error(hpi_outstream_reset(dpcm->h_stream)); dpcm->pcm_buf_host_rw_ofs = 0; @@ -896,7 +890,7 @@ snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream) snd_pcm_uframes_t ptr; ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes); - /* VPRINTK2(KERN_INFO "playback_pointer=x%04lx\n", (unsigned long)ptr); */ + snd_printddd("playback_pointer=x%04lx\n", (unsigned long)ptr); return ptr; } @@ -1018,7 +1012,7 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream) snd_pcm_set_sync(substream); - VPRINTK1(KERN_INFO "playback open\n"); + snd_printdd("playback open\n"); return 0; } @@ -1029,7 +1023,7 @@ static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream) struct snd_card_asihpi_pcm *dpcm = runtime->private_data; hpi_handle_error(hpi_outstream_close(dpcm->h_stream)); - VPRINTK1(KERN_INFO "playback close\n"); + snd_printdd("playback close\n"); return 0; } @@ -1049,7 +1043,7 @@ static int snd_card_asihpi_playback_copy(struct snd_pcm_substream *substream, if (copy_from_user(runtime->dma_area, src, len)) return -EFAULT; - VPRINTK2(KERN_DEBUG "playback copy%d %u bytes\n", + snd_printddd("playback copy%d %u bytes\n", substream->number, len); hpi_handle_error(hpi_outstream_write_buf(dpcm->h_stream, @@ -1104,7 +1098,7 @@ snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream) struct snd_pcm_runtime *runtime = substream->runtime; struct snd_card_asihpi_pcm *dpcm = runtime->private_data; - VPRINTK2(KERN_INFO "capture pointer %d=%d\n", + snd_printddd("capture pointer %d=%d\n", substream->number, dpcm->pcm_buf_dma_ofs); /* NOTE Unlike playback can't use actual samples_played for the capture position, because those samples aren't yet in @@ -1129,7 +1123,7 @@ static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream) dpcm->pcm_buf_dma_ofs = 0; dpcm->pcm_buf_elapsed_dma_ofs = 0; - VPRINTK1("Capture Prepare %d\n", substream->number); + snd_printdd("Capture Prepare %d\n", substream->number); return 0; } @@ -1192,7 +1186,7 @@ static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream) if (dpcm == NULL) return -ENOMEM; - VPRINTK1("hpi_instream_open adapter %d stream %d\n", + snd_printdd("capture open adapter %d stream %d\n", card->adapter_index, substream->number); err = hpi_handle_error( @@ -1262,7 +1256,7 @@ static int snd_card_asihpi_capture_copy(struct snd_pcm_substream *substream, len = frames_to_bytes(runtime, count); - VPRINTK2(KERN_INFO "capture copy%d %d bytes\n", substream->number, len); + snd_printddd("capture copy%d %d bytes\n", substream->number, len); hpi_handle_error(hpi_instream_read_buf(dpcm->h_stream, runtime->dma_area, len)); @@ -2906,7 +2900,6 @@ static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev, asihpi->support_mrx ); - err = snd_card_asihpi_pcm_new(asihpi, 0, pcm_substreams); if (err < 0) { snd_printk(KERN_ERR "pcm_new failed\n"); @@ -2941,6 +2934,7 @@ static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev, sprintf(card->longname, "%s %i", card->shortname, asihpi->adapter_index); err = snd_card_register(card); + if (!err) { hpi_card->snd_card_asihpi = card; dev++; -- cgit v1.2.3 From e21fa86ad0ffa2c292b104ea19bdaa46ceab7105 Mon Sep 17 00:00:00 2001 From: Yang Ruirui <ruirui.r.yang@tieto.com> Date: Mon, 14 Mar 2011 09:50:56 +0800 Subject: mtdswap: kill strict error handling option As Artem Bityutskiy suggested: this option is controversial, as we do not really have any prove it is useful. And it is too much to have it as a config parameter. So, better kill it and let the real mtdswap users decide whether it is needed or not. Signed-off-by: Yang Ruirui<ruirui.r.yang@tieto.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> --- drivers/mtd/Kconfig | 8 -------- drivers/mtd/mtdswap.c | 8 +------- 2 files changed, 1 insertion(+), 15 deletions(-) diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 5fe01d556657..b4567c35a322 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -335,14 +335,6 @@ config MTD_SWAP The driver provides wear leveling by storing erase counter into the OOB. -config MTD_SWAP_STRICT - bool "Strict erase error handling" - depends on MTD_SWAP - help - Enables strict tolerance on failed erasures, marking erase blocks bad - right after the first failed operation. With non-strict mode the - erase operation is retried. - source "drivers/mtd/chips/Kconfig" source "drivers/mtd/maps/Kconfig" diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c index a65594fee4a3..dc4b136800b8 100644 --- a/drivers/mtd/mtdswap.c +++ b/drivers/mtd/mtdswap.c @@ -156,12 +156,6 @@ struct mtdswap_oobdata { #define MTDSWAP_ERASE_RETRIES 3 /* Before marking erase block bad */ #define MTDSWAP_IO_RETRIES 3 -#ifdef CONFIG_MTD_SWAP_STRICT -#define MTDSWAP_STRICT 1 -#else -#define MTDSWAP_STRICT 0 -#endif - enum { MTDSWAP_SCANNED_CLEAN, MTDSWAP_SCANNED_DIRTY, @@ -575,7 +569,7 @@ retry: ret = mtd->erase(mtd, &erase); if (ret) { - if (retries++ < MTDSWAP_ERASE_RETRIES && !MTDSWAP_STRICT) { + if (retries++ < MTDSWAP_ERASE_RETRIES) { dev_warn(d->dev, "erase of erase block %#llx on %s failed", erase.addr, mtd->name); -- cgit v1.2.3 From 68b1a1e786f29c900fa1c516a402e24f0ece622a Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Date: Fri, 25 Mar 2011 17:10:16 +0200 Subject: mtd: mtdswap: fix compilation warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the following compilation warning: drivers/mtd/mtdswap.c: In function ‘mtdswap_pick_gc_eblk’: drivers/mtd/mtdswap.c:859: warning: ‘idx’ may be used uninitialized in this function drivers/mtd/mtdswap.c:859: note: ‘idx’ was declared here Initialize idx to -1 because this value means "no tree choosen". Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> --- drivers/mtd/mtdswap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c index dc4b136800b8..237913c5c92c 100644 --- a/drivers/mtd/mtdswap.c +++ b/drivers/mtd/mtdswap.c @@ -850,7 +850,7 @@ static int mtdswap_wlfreq(unsigned int maxdiff) static int mtdswap_choose_wl_tree(struct mtdswap_dev *d) { static unsigned int pick_cnt; - unsigned int i, idx, wear, max; + unsigned int i, idx = -1, wear, max; struct rb_root *root; max = 0; -- cgit v1.2.3 From 401a18e92ce32cd0ddfa5738899ca2b8114f2bbf Mon Sep 17 00:00:00 2001 From: Jens Axboe <jaxboe@fusionio.com> Date: Fri, 25 Mar 2011 16:57:52 +0100 Subject: block: fix bug with inserting flush requests as sort/merge With the introduction of the on-stack plugging, we would assume that any request being inserted was a normal file system request. As flush/fua requires a special insert mode, this caused problems. Fix this up by checking for this in flush_plug_list() and use the appropriate insert mechanism. Big thanks goes to Markus Tripplesdorf for tirelessly testing patches, and to Sergey Senozhatsky for helping find the real issue. Reported-by: Markus Tripplesdorf <markus@trippelsdorf.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- block/blk-core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index 59b5c00c0126..64e96ee1d6af 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2702,7 +2702,10 @@ static void flush_plug_list(struct blk_plug *plug) /* * rq is already accounted, so use raw insert */ - __elv_add_request(q, rq, ELEVATOR_INSERT_SORT_MERGE); + if (rq->cmd_flags & (REQ_FLUSH | REQ_FUA)) + __elv_add_request(q, rq, ELEVATOR_INSERT_FLUSH); + else + __elv_add_request(q, rq, ELEVATOR_INSERT_SORT_MERGE); } if (q) { -- cgit v1.2.3 From ad3d9d7ede04a9c71be7a9fe1a23961817f371f7 Mon Sep 17 00:00:00 2001 From: Jens Axboe <jaxboe@fusionio.com> Date: Fri, 25 Mar 2011 16:58:59 +0100 Subject: block: fix issue with calling blk_stop_queue() from the request_fn handler When the queue work handler was converted to delayed work, the stopping was inadvertently made sync as well. Change this back to being async stop, using __cancel_delayed_work() instead of cancel_delayed_work(). Reported-by: Jeremy Fitzhardinge <jeremy@goop.org> Reported-by: Chris Mason <chris.mason@oracle.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- block/blk-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index 64e96ee1d6af..e0a062363937 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -271,7 +271,7 @@ EXPORT_SYMBOL(blk_start_queue); **/ void blk_stop_queue(struct request_queue *q) { - cancel_delayed_work(&q->delay_work); + __cancel_delayed_work(&q->delay_work); queue_flag_set(QUEUE_FLAG_STOPPED, q); } EXPORT_SYMBOL(blk_stop_queue); -- cgit v1.2.3 From ab7798ffcf98b11a9525cf65bacdae3fd58d357f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 16:48:50 +0100 Subject: genirq: Expand generic show_interrupts() Some archs want to print extra information for certain irq_chips which is per irq and not per chip. Allow them to provide a chip callback to print the chip name and the extra information. PowerPC wants to print the LEVEL/EDGE type information. Make it configurable. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- include/linux/irq.h | 4 ++++ kernel/irq/Kconfig | 4 ++++ kernel/irq/proc.c | 15 ++++++++++++++- 3 files changed, 22 insertions(+), 1 deletion(-) diff --git a/include/linux/irq.h b/include/linux/irq.h index 1d3577f30d45..5d876c9b3a3d 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -28,6 +28,7 @@ #include <asm/ptrace.h> #include <asm/irq_regs.h> +struct seq_file; struct irq_desc; struct irq_data; typedef void (*irq_flow_handler_t)(unsigned int irq, @@ -270,6 +271,7 @@ static inline bool irqd_can_move_in_process_context(struct irq_data *d) * @irq_set_wake: enable/disable power-management wake-on of an IRQ * @irq_bus_lock: function to lock access to slow bus (i2c) chips * @irq_bus_sync_unlock:function to sync and unlock slow bus (i2c) chips + * @irq_print_chip: optional to print special chip info in show_interrupts * @flags: chip specific flags * * @release: release function solely used by UML @@ -317,6 +319,8 @@ struct irq_chip { void (*irq_bus_lock)(struct irq_data *data); void (*irq_bus_sync_unlock)(struct irq_data *data); + void (*irq_print_chip)(struct irq_data *data, struct seq_file *p); + unsigned long flags; /* Currently used only by UML, might disappear one day.*/ diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index 09bef82d74cb..00f2c037267a 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -31,6 +31,10 @@ config GENERIC_IRQ_PROBE config GENERIC_IRQ_SHOW bool +# Print level/edge extra information +config GENERIC_IRQ_SHOW_LEVEL + bool + # Support for delayed migration from interrupt context config GENERIC_PENDING_IRQ bool diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 760248de109d..626d092eed9a 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -404,7 +404,20 @@ int show_interrupts(struct seq_file *p, void *v) seq_printf(p, "%*d: ", prec, i); for_each_online_cpu(j) seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); - seq_printf(p, " %8s", desc->irq_data.chip->name); + + if (desc->irq_data.chip) { + if (desc->irq_data.chip->irq_print_chip) + desc->irq_data.chip->irq_print_chip(&desc->irq_data, p); + else if (desc->irq_data.chip->name) + seq_printf(p, " %8s", desc->irq_data.chip->name); + else + seq_printf(p, " %8s", "-"); + } else { + seq_printf(p, " %8s", "None"); + } +#ifdef CONFIG_GENIRC_IRQ_SHOW_LEVEL + seq_printf(p, " %-8s", irqd_is_level_type(&desc->irq_data) ? "Level" : "Edge"); +#endif if (desc->name) seq_printf(p, "-%-8s", desc->name); -- cgit v1.2.3 From 9cad7962704d617ab1e4ae304baaaa22d727932b Mon Sep 17 00:00:00 2001 From: Jonathan Corbet <corbet@lwn.net> Date: Fri, 25 Mar 2011 10:42:17 -0600 Subject: docs: fix dev_debug() braino in dynamic-debug-howto.txt While looking at dynamic-debug-howto.txt, I noticed that it references dev_debug() (which doesn't exist) instead of dev_dbg() (which does exist). I'm lazy, so I choose to fix the document rather than changing every dev_dbg() call. Signed-off-by: Jonathan Corbet <corbet@lwn.net> --- Documentation/dynamic-debug-howto.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/dynamic-debug-howto.txt b/Documentation/dynamic-debug-howto.txt index 58ea64a96165..60ae41f234d0 100644 --- a/Documentation/dynamic-debug-howto.txt +++ b/Documentation/dynamic-debug-howto.txt @@ -6,7 +6,7 @@ This document describes how to use the dynamic debug (ddebug) feature. Dynamic debug is designed to allow you to dynamically enable/disable kernel code to obtain additional kernel information. Currently, if -CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_debug() calls can be +CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() calls can be dynamically enabled per-callsite. Dynamic debug has even more useful features: @@ -26,7 +26,7 @@ Dynamic debug has even more useful features: Controlling dynamic debug Behaviour =================================== -The behaviour of pr_debug()/dev_debug()s are controlled via writing to a +The behaviour of pr_debug()/dev_dbg()s are controlled via writing to a control file in the 'debugfs' filesystem. Thus, you must first mount the debugfs filesystem, in order to make use of this feature. Subsequently, we refer to the control file as: <debugfs>/dynamic_debug/control. For example, if you want to -- cgit v1.2.3 From 4bafad922ab480d5f86052e679abf5c3ca6dbfa7 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Date: Fri, 3 Sep 2010 09:49:12 +0900 Subject: MIPS: Enable ARCH_DMA_ADDR_T_64BIT if (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> To: akpm@linux-foundation.org Cc: linux-mips@linux-mips.org Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1566/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/Kconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 9905e2e85de4..328ed8dbfa04 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -862,6 +862,9 @@ config GPIO_TXX9 config CFE bool +config ARCH_DMA_ADDR_T_64BIT + def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT + config DMA_COHERENT bool -- cgit v1.2.3 From 756cca61a7faddcafa582d683b46f32280eda948 Mon Sep 17 00:00:00 2001 From: Ralf Baechle <ralf@linux-mips.org> Date: Fri, 25 Mar 2011 18:45:13 +0100 Subject: MIPS: Microoptimize arch_{read,write}_lock Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/include/asm/spinlock.h | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h index 396e402fbe2c..ca61e846ab0f 100644 --- a/arch/mips/include/asm/spinlock.h +++ b/arch/mips/include/asm/spinlock.h @@ -245,16 +245,16 @@ static inline void arch_read_lock(arch_rwlock_t *rw) __asm__ __volatile__( " .set noreorder # arch_read_lock \n" "1: ll %1, %2 \n" - " bltz %1, 2f \n" + " bltz %1, 3f \n" " addu %1, 1 \n" - " sc %1, %0 \n" + "2: sc %1, %0 \n" " beqz %1, 1b \n" " nop \n" " .subsection 2 \n" - "2: ll %1, %2 \n" - " bltz %1, 2b \n" + "3: ll %1, %2 \n" + " bltz %1, 3b \n" " addu %1, 1 \n" - " b 1b \n" + " b 2b \n" " nop \n" " .previous \n" " .set reorder \n" @@ -324,16 +324,16 @@ static inline void arch_write_lock(arch_rwlock_t *rw) __asm__ __volatile__( " .set noreorder # arch_write_lock \n" "1: ll %1, %2 \n" - " bnez %1, 2f \n" + " bnez %1, 3f \n" " lui %1, 0x8000 \n" - " sc %1, %0 \n" - " beqz %1, 2f \n" + "2: sc %1, %0 \n" + " beqz %1, 3f \n" " nop \n" " .subsection 2 \n" - "2: ll %1, %2 \n" - " bnez %1, 2b \n" + "3: ll %1, %2 \n" + " bnez %1, 3b \n" " lui %1, 0x8000 \n" - " b 1b \n" + " b 2b \n" " nop \n" " .previous \n" " .set reorder \n" -- cgit v1.2.3 From f9b08d9c606498584e1fb05ab95a575e52f0f8e2 Mon Sep 17 00:00:00 2001 From: Ralf Baechle <ralf@linux-mips.org> Date: Fri, 25 Mar 2011 18:45:13 +0100 Subject: MIPS: Remove useless initialization. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/ath79/irq.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c index 1bf7f719ba53..040762abdcd1 100644 --- a/arch/mips/ath79/irq.c +++ b/arch/mips/ath79/irq.c @@ -127,7 +127,6 @@ static void __init ath79_misc_irq_init(void) for (i = ATH79_MISC_IRQ_BASE; i < ATH79_MISC_IRQ_BASE + ATH79_MISC_IRQ_COUNT; i++) { - irq_desc[i].status = IRQ_DISABLED; set_irq_chip_and_handler(i, &ath79_misc_irq_chip, handle_level_irq); } -- cgit v1.2.3 From 1685f3b158a244d4f6e205e67c84483fffcb2d9f Mon Sep 17 00:00:00 2001 From: Ralf Baechle <ralf@linux-mips.org> Date: Fri, 25 Mar 2011 18:45:13 +0100 Subject: MIPS: SMTC: Move declaration of smtc_init_secondary to <asm/smtc.h>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/mipssim/sim_smtc.c | 3 +-- arch/mips/mti-malta/malta-smtc.c | 1 - 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/mips/mipssim/sim_smtc.c b/arch/mips/mipssim/sim_smtc.c index 5da30b6a65b7..30df47258c2c 100644 --- a/arch/mips/mipssim/sim_smtc.c +++ b/arch/mips/mipssim/sim_smtc.c @@ -27,6 +27,7 @@ #include <asm/atomic.h> #include <asm/cpu.h> #include <asm/processor.h> +#include <asm/smtc.h> #include <asm/system.h> #include <asm/mmu_context.h> #include <asm/smtc_ipi.h> @@ -57,8 +58,6 @@ static inline void ssmtc_send_ipi_mask(const struct cpumask *mask, */ static void __cpuinit ssmtc_init_secondary(void) { - void smtc_init_secondary(void); - smtc_init_secondary(); } diff --git a/arch/mips/mti-malta/malta-smtc.c b/arch/mips/mti-malta/malta-smtc.c index 192cfd2a539c..2043cb6e71c5 100644 --- a/arch/mips/mti-malta/malta-smtc.c +++ b/arch/mips/mti-malta/malta-smtc.c @@ -34,7 +34,6 @@ static void msmtc_send_ipi_mask(const struct cpumask *mask, unsigned int action) */ static void __cpuinit msmtc_init_secondary(void) { - void smtc_init_secondary(void); int myvpe; /* Don't enable Malta I/O interrupts (IP2) for secondary VPEs */ -- cgit v1.2.3 From 3b042d0830463056a669a12362c940a94f7e3cd7 Mon Sep 17 00:00:00 2001 From: Anoop P A <anoop.pa@gmail.com> Date: Tue, 25 Jan 2011 23:38:16 +0530 Subject: MIPS: MSP71xx: Set up MSP VPE1 timer. VPE1 timer will be required for VSMP / SMTC. [Ralf: Fixed a bunch of issues raised by checkpatch.] Signed-off-by: Anoop P A <anoop.pa@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/2049/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/pmc-sierra/msp71xx/msp_time.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/arch/mips/pmc-sierra/msp71xx/msp_time.c b/arch/mips/pmc-sierra/msp71xx/msp_time.c index 01df84ce31e2..8b42f307a7a7 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_time.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_time.c @@ -29,6 +29,7 @@ #include <linux/module.h> #include <linux/ptrace.h> +#include <asm/cevt-r4k.h> #include <asm/mipsregs.h> #include <asm/time.h> @@ -36,6 +37,12 @@ #include <msp_int.h> #include <msp_regs.h> +#define get_current_vpe() \ + ((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE) + +static struct irqaction timer_vpe1; +static int tim_installed; + void __init plat_time_init(void) { char *endp, *s; @@ -83,5 +90,12 @@ void __init plat_time_init(void) unsigned int __cpuinit get_c0_compare_int(void) { - return MSP_INT_VPE0_TIMER; + /* MIPS_MT modes may want timer for second VPE */ + if ((get_current_vpe()) && !tim_installed) { + memcpy(&timer_vpe1, &c0_compare_irqaction, sizeof(timer_vpe1)); + setup_irq(MSP_INT_VPE1_TIMER, &timer_vpe1); + tim_installed++; + } + + return get_current_vpe() ? MSP_INT_VPE1_TIMER : MSP_INT_VPE0_TIMER; } -- cgit v1.2.3 From 92592c9ccac9ab9c652533e08d0daad06f1dc501 Mon Sep 17 00:00:00 2001 From: Anoop P A <anoop.pa@gmail.com> Date: Tue, 25 Jan 2011 13:50:10 +0530 Subject: MIPS: MSP71xx: Add vectored interrupt support. This patch will add vectored interrupt setups required for MIPS MT modes. irq_cic has been restructured and moved per irq handler to different file. irq_cic has been re wrote to support mips MT modes ( VSMP / SMTC ) [Ralf: fixed some more checkpatch warnings.] Signed-off-by: Anoop P A <anoop.pa@gmail.com> To: linux-mips@linux-mips.org To: linux-kernel@vger.kernel.org To: dhowells@redhat.com Patchwork: https://patchwork.linux-mips.org/patch/2041/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/pmc-sierra/msp71xx/Makefile | 2 +- arch/mips/pmc-sierra/msp71xx/msp_irq.c | 56 +++++-- arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c | 248 ++++++++++++++++++++--------- arch/mips/pmc-sierra/msp71xx/msp_irq_per.c | 179 +++++++++++++++++++++ 4 files changed, 397 insertions(+), 88 deletions(-) create mode 100644 arch/mips/pmc-sierra/msp71xx/msp_irq_per.c diff --git a/arch/mips/pmc-sierra/msp71xx/Makefile b/arch/mips/pmc-sierra/msp71xx/Makefile index e107f79b1491..b25f3542e6d1 100644 --- a/arch/mips/pmc-sierra/msp71xx/Makefile +++ b/arch/mips/pmc-sierra/msp71xx/Makefile @@ -6,7 +6,7 @@ obj-y += msp_prom.o msp_setup.o msp_irq.o \ obj-$(CONFIG_HAVE_GPIO_LIB) += gpio.o gpio_extended.o obj-$(CONFIG_PMC_MSP7120_GW) += msp_hwbutton.o obj-$(CONFIG_IRQ_MSP_SLP) += msp_irq_slp.o -obj-$(CONFIG_IRQ_MSP_CIC) += msp_irq_cic.o +obj-$(CONFIG_IRQ_MSP_CIC) += msp_irq_cic.o msp_irq_per.o obj-$(CONFIG_PCI) += msp_pci.o obj-$(CONFIG_MSPETH) += msp_eth.o obj-$(CONFIG_USB_MSP71XX) += msp_usb.o diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq.c b/arch/mips/pmc-sierra/msp71xx/msp_irq.c index 734d598a2e3a..4531c4a514bc 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_irq.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq.c @@ -19,8 +19,6 @@ #include <msp_int.h> -extern void msp_int_handle(void); - /* SLP bases systems */ extern void msp_slp_irq_init(void); extern void msp_slp_irq_dispatch(void); @@ -29,6 +27,18 @@ extern void msp_slp_irq_dispatch(void); extern void msp_cic_irq_init(void); extern void msp_cic_irq_dispatch(void); +/* VSMP support init */ +extern void msp_vsmp_int_init(void); + +/* vectored interrupt implementation */ + +/* SW0/1 interrupts are used for SMP/SMTC */ +static inline void mac0_int_dispatch(void) { do_IRQ(MSP_INT_MAC0); } +static inline void mac1_int_dispatch(void) { do_IRQ(MSP_INT_MAC1); } +static inline void mac2_int_dispatch(void) { do_IRQ(MSP_INT_SAR); } +static inline void usb_int_dispatch(void) { do_IRQ(MSP_INT_USB); } +static inline void sec_int_dispatch(void) { do_IRQ(MSP_INT_SEC); } + /* * The PMC-Sierra MSP interrupts are arranged in a 3 level cascaded * hierarchical system. The first level are the direct MIPS interrupts @@ -96,29 +106,57 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs) do_IRQ(MSP_INT_SW1); } -static struct irqaction cascade_msp = { +static struct irqaction cic_cascade_msp = { .handler = no_action, - .name = "MSP cascade" + .name = "MSP CIC cascade" }; +static struct irqaction per_cascade_msp = { + .handler = no_action, + .name = "MSP PER cascade" +}; void __init arch_init_irq(void) { + /* assume we'll be using vectored interrupt mode except in UP mode*/ +#ifdef CONFIG_MIPS_MT + BUG_ON(!cpu_has_vint); +#endif /* initialize the 1st-level CPU based interrupt controller */ mips_cpu_irq_init(); #ifdef CONFIG_IRQ_MSP_CIC msp_cic_irq_init(); - +#ifdef CONFIG_MIPS_MT + set_vi_handler(MSP_INT_CIC, msp_cic_irq_dispatch); + set_vi_handler(MSP_INT_MAC0, mac0_int_dispatch); + set_vi_handler(MSP_INT_MAC1, mac1_int_dispatch); + set_vi_handler(MSP_INT_SAR, mac2_int_dispatch); + set_vi_handler(MSP_INT_USB, usb_int_dispatch); + set_vi_handler(MSP_INT_SEC, sec_int_dispatch); +#ifdef CONFIG_MIPS_MT_SMP + msp_vsmp_int_init(); +#elif defined CONFIG_MIPS_MT_SMTC + /*Set hwmask for all platform devices */ + irq_hwmask[MSP_INT_MAC0] = C_IRQ0; + irq_hwmask[MSP_INT_MAC1] = C_IRQ1; + irq_hwmask[MSP_INT_USB] = C_IRQ2; + irq_hwmask[MSP_INT_SAR] = C_IRQ3; + irq_hwmask[MSP_INT_SEC] = C_IRQ5; + +#endif /* CONFIG_MIPS_MT_SMP */ +#endif /* CONFIG_MIPS_MT */ /* setup the cascaded interrupts */ - setup_irq(MSP_INT_CIC, &cascade_msp); - setup_irq(MSP_INT_PER, &cascade_msp); + setup_irq(MSP_INT_CIC, &cic_cascade_msp); + setup_irq(MSP_INT_PER, &per_cascade_msp); + #else /* setup the 2nd-level SLP register based interrupt controller */ + /* VSMP /SMTC support support is not enabled for SLP */ msp_slp_irq_init(); /* setup the cascaded SLP/PER interrupts */ - setup_irq(MSP_INT_SLP, &cascade_msp); - setup_irq(MSP_INT_PER, &cascade_msp); + setup_irq(MSP_INT_SLP, &cic_cascade_msp); + setup_irq(MSP_INT_PER, &per_cascade_msp); #endif } diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c index 07e71ff2433f..e64458a833e2 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c @@ -1,8 +1,7 @@ /* - * This file define the irq handler for MSP SLM subsystem interrupts. + * Copyright 2010 PMC-Sierra, Inc, derived from irq_cpu.c * - * Copyright 2005-2007 PMC-Sierra, Inc, derived from irq_cpu.c - * Author: Andrew Hughes, Andrew_Hughes@pmc-sierra.com + * This file define the irq handler for MSP CIC subsystem interrupts. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -16,119 +15,212 @@ #include <linux/bitops.h> #include <linux/irq.h> +#include <asm/mipsregs.h> #include <asm/system.h> #include <msp_cic_int.h> #include <msp_regs.h> /* - * NOTE: We are only enabling support for VPE0 right now. + * External API */ +extern void msp_per_irq_init(void); +extern void msp_per_irq_dispatch(void); -static inline void unmask_msp_cic_irq(unsigned int irq) + +/* + * Convenience Macro. Should be somewhere generic. + */ +#define get_current_vpe() \ + ((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE) + +#ifdef CONFIG_SMP + +#define LOCK_VPE(flags, mtflags) \ +do { \ + local_irq_save(flags); \ + mtflags = dmt(); \ +} while (0) + +#define UNLOCK_VPE(flags, mtflags) \ +do { \ + emt(mtflags); \ + local_irq_restore(flags);\ +} while (0) + +#define LOCK_CORE(flags, mtflags) \ +do { \ + local_irq_save(flags); \ + mtflags = dvpe(); \ +} while (0) + +#define UNLOCK_CORE(flags, mtflags) \ +do { \ + evpe(mtflags); \ + local_irq_restore(flags);\ +} while (0) + +#else + +#define LOCK_VPE(flags, mtflags) +#define UNLOCK_VPE(flags, mtflags) +#endif + +/* ensure writes to cic are completed */ +static inline void cic_wmb(void) { + const volatile void __iomem *cic_mem = CIC_VPE0_MSK_REG; + volatile u32 dummy_read; - /* check for PER interrupt range */ - if (irq < MSP_PER_INTBASE) - *CIC_VPE0_MSK_REG |= (1 << (irq - MSP_CIC_INTBASE)); - else - *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE)); + wmb(); + dummy_read = __raw_readl(cic_mem); + dummy_read++; } -static inline void mask_msp_cic_irq(unsigned int irq) +static inline void unmask_cic_irq(unsigned int irq) { - /* check for PER interrupt range */ - if (irq < MSP_PER_INTBASE) - *CIC_VPE0_MSK_REG &= ~(1 << (irq - MSP_CIC_INTBASE)); - else - *PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE)); + volatile u32 *cic_msk_reg = CIC_VPE0_MSK_REG; + int vpe; +#ifdef CONFIG_SMP + unsigned int mtflags; + unsigned long flags; + + /* + * Make sure we have IRQ affinity. It may have changed while + * we were processing the IRQ. + */ + if (!cpumask_test_cpu(smp_processor_id(), irq_desc[irq].affinity)) + return; +#endif + + vpe = get_current_vpe(); + LOCK_VPE(flags, mtflags); + cic_msk_reg[vpe] |= (1 << (irq - MSP_CIC_INTBASE)); + UNLOCK_VPE(flags, mtflags); + cic_wmb(); } -/* - * While we ack the interrupt interrupts are disabled and thus we don't need - * to deal with concurrency issues. Same for msp_cic_irq_end. - */ -static inline void ack_msp_cic_irq(unsigned int irq) +static inline void mask_cic_irq(unsigned int irq) { - mask_msp_cic_irq(irq); - + volatile u32 *cic_msk_reg = CIC_VPE0_MSK_REG; + int vpe = get_current_vpe(); +#ifdef CONFIG_SMP + unsigned long flags, mtflags; +#endif + LOCK_VPE(flags, mtflags); + cic_msk_reg[vpe] &= ~(1 << (irq - MSP_CIC_INTBASE)); + UNLOCK_VPE(flags, mtflags); + cic_wmb(); +} +static inline void msp_cic_irq_ack(unsigned int irq) +{ + mask_cic_irq(irq); /* - * only really necessary for 18, 16-14 and sometimes 3:0 (since - * these can be edge sensitive) but it doesn't hurt for the others. - */ - - /* check for PER interrupt range */ - if (irq < MSP_PER_INTBASE) - *CIC_STS_REG = (1 << (irq - MSP_CIC_INTBASE)); - else - *PER_INT_STS_REG = (1 << (irq - MSP_PER_INTBASE)); + * Only really necessary for 18, 16-14 and sometimes 3:0 + * (since these can be edge sensitive) but it doesn't + * hurt for the others + */ + *CIC_STS_REG = (1 << (irq - MSP_CIC_INTBASE)); + smtc_im_ack_irq(irq); +} + +static void msp_cic_irq_end(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) + unmask_cic_irq(irq); +} + +/*Note: Limiting to VSMP . Not tested in SMTC */ + +#ifdef CONFIG_MIPS_MT_SMP +static inline int msp_cic_irq_set_affinity(unsigned int irq, + const struct cpumask *cpumask) +{ + int cpu; + unsigned long flags; + unsigned int mtflags; + unsigned long imask = (1 << (irq - MSP_CIC_INTBASE)); + volatile u32 *cic_mask = (volatile u32 *)CIC_VPE0_MSK_REG; + + /* timer balancing should be disabled in kernel code */ + BUG_ON(irq == MSP_INT_VPE0_TIMER || irq == MSP_INT_VPE1_TIMER); + + LOCK_CORE(flags, mtflags); + /* enable if any of each VPE's TCs require this IRQ */ + for_each_online_cpu(cpu) { + if (cpumask_test_cpu(cpu, cpumask)) + cic_mask[cpu] |= imask; + else + cic_mask[cpu] &= ~imask; + + } + + UNLOCK_CORE(flags, mtflags); + return 0; + } +#endif static struct irq_chip msp_cic_irq_controller = { .name = "MSP_CIC", - .ack = ack_msp_cic_irq, - .mask = ack_msp_cic_irq, - .mask_ack = ack_msp_cic_irq, - .unmask = unmask_msp_cic_irq, + .mask = mask_cic_irq, + .mask_ack = msp_cic_irq_ack, + .unmask = unmask_cic_irq, + .ack = msp_cic_irq_ack, + .end = msp_cic_irq_end, +#ifdef CONFIG_MIPS_MT_SMP + .set_affinity = msp_cic_irq_set_affinity, +#endif }; - void __init msp_cic_irq_init(void) { int i; - /* Mask/clear interrupts. */ *CIC_VPE0_MSK_REG = 0x00000000; - *PER_INT_MSK_REG = 0x00000000; + *CIC_VPE1_MSK_REG = 0x00000000; *CIC_STS_REG = 0xFFFFFFFF; - *PER_INT_STS_REG = 0xFFFFFFFF; - -#if defined(CONFIG_PMC_MSP7120_GW) || \ - defined(CONFIG_PMC_MSP7120_EVAL) /* - * The MSP7120 RG and EVBD boards use IRQ[6:4] for PCI. - * These inputs map to EXT_INT_POL[6:4] inside the CIC. - * They are to be active low, level sensitive. - */ + * The MSP7120 RG and EVBD boards use IRQ[6:4] for PCI. + * These inputs map to EXT_INT_POL[6:4] inside the CIC. + * They are to be active low, level sensitive. + */ *CIC_EXT_CFG_REG &= 0xFFFF8F8F; -#endif /* initialize all the IRQ descriptors */ - for (i = MSP_CIC_INTBASE; i < MSP_PER_INTBASE + 32; i++) + for (i = MSP_CIC_INTBASE ; i < MSP_CIC_INTBASE + 32 ; i++) { set_irq_chip_and_handler(i, &msp_cic_irq_controller, handle_level_irq); +#ifdef CONFIG_MIPS_MT_SMTC + /* Mask of CIC interrupt */ + irq_hwmask[i] = C_IRQ4; +#endif + } + + /* Initialize the PER interrupt sub-system */ + msp_per_irq_init(); } +/* CIC masked by CIC vector processing before dispatch called */ void msp_cic_irq_dispatch(void) { - u32 pending; - int intbase; - - intbase = MSP_CIC_INTBASE; - pending = *CIC_STS_REG & *CIC_VPE0_MSK_REG; - - /* check for PER interrupt */ - if (pending == (1 << (MSP_INT_PER - MSP_CIC_INTBASE))) { - intbase = MSP_PER_INTBASE; - pending = *PER_INT_STS_REG & *PER_INT_MSK_REG; - } - - /* check for spurious interrupt */ - if (pending == 0x00000000) { - printk(KERN_ERR - "Spurious %s interrupt? status %08x, mask %08x\n", - (intbase == MSP_CIC_INTBASE) ? "CIC" : "PER", - (intbase == MSP_CIC_INTBASE) ? - *CIC_STS_REG : *PER_INT_STS_REG, - (intbase == MSP_CIC_INTBASE) ? - *CIC_VPE0_MSK_REG : *PER_INT_MSK_REG); - return; - } - - /* check for the timer and dispatch it first */ - if ((intbase == MSP_CIC_INTBASE) && - (pending & (1 << (MSP_INT_VPE0_TIMER - MSP_CIC_INTBASE)))) + volatile u32 *cic_msk_reg = (volatile u32 *)CIC_VPE0_MSK_REG; + u32 cic_mask; + u32 pending; + int cic_status = *CIC_STS_REG; + cic_mask = cic_msk_reg[get_current_vpe()]; + pending = cic_status & cic_mask; + if (pending & (1 << (MSP_INT_VPE0_TIMER - MSP_CIC_INTBASE))) { do_IRQ(MSP_INT_VPE0_TIMER); - else - do_IRQ(ffs(pending) + intbase - 1); + } else if (pending & (1 << (MSP_INT_VPE1_TIMER - MSP_CIC_INTBASE))) { + do_IRQ(MSP_INT_VPE1_TIMER); + } else if (pending & (1 << (MSP_INT_PER - MSP_CIC_INTBASE))) { + msp_per_irq_dispatch(); + } else if (pending) { + do_IRQ(ffs(pending) + MSP_CIC_INTBASE - 1); + } else{ + spurious_interrupt(); + /* Re-enable the CIC cascaded interrupt. */ + irq_desc[MSP_INT_CIC].chip->end(MSP_INT_CIC); + } } diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c new file mode 100644 index 000000000000..72bcd70d2ddf --- /dev/null +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c @@ -0,0 +1,179 @@ +/* + * Copyright 2010 PMC-Sierra, Inc, derived from irq_cpu.c + * + * This file define the irq handler for MSP PER subsystem interrupts. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/spinlock.h> +#include <linux/bitops.h> + +#include <asm/mipsregs.h> +#include <asm/system.h> + +#include <msp_cic_int.h> +#include <msp_regs.h> + + +/* + * Convenience Macro. Should be somewhere generic. + */ +#define get_current_vpe() \ + ((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE) + +#ifdef CONFIG_SMP +/* + * The PER registers must be protected from concurrent access. + */ + +static DEFINE_SPINLOCK(per_lock); +#endif + +/* ensure writes to per are completed */ + +static inline void per_wmb(void) +{ + const volatile void __iomem *per_mem = PER_INT_MSK_REG; + volatile u32 dummy_read; + + wmb(); + dummy_read = __raw_readl(per_mem); + dummy_read++; +} + +static inline void unmask_per_irq(unsigned int irq) +{ +#ifdef CONFIG_SMP + unsigned long flags; + spin_lock_irqsave(&per_lock, flags); + *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE)); + spin_unlock_irqrestore(&per_lock, flags); +#else + *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE)); +#endif + per_wmb(); +} + +static inline void mask_per_irq(unsigned int irq) +{ +#ifdef CONFIG_SMP + unsigned long flags; + spin_lock_irqsave(&per_lock, flags); + *PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE)); + spin_unlock_irqrestore(&per_lock, flags); +#else + *PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE)); +#endif + per_wmb(); +} + +static inline void msp_per_irq_enable(unsigned int irq) +{ + unmask_per_irq(irq); +} + +static inline void msp_per_irq_disable(unsigned int irq) +{ + mask_per_irq(irq); +} + +static unsigned int msp_per_irq_startup(unsigned int irq) +{ + msp_per_irq_enable(irq); + return 0; +} + +#define msp_per_irq_shutdown msp_per_irq_disable + +static inline void msp_per_irq_ack(unsigned int irq) +{ + mask_per_irq(irq); + /* + * In the PER interrupt controller, only bits 11 and 10 + * are write-to-clear, (SPI TX complete, SPI RX complete). + * It does nothing for any others. + */ + + *PER_INT_STS_REG = (1 << (irq - MSP_PER_INTBASE)); + + /* Re-enable the CIC cascaded interrupt and return */ + irq_desc[MSP_INT_CIC].chip->end(MSP_INT_CIC); +} + +static void msp_per_irq_end(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) + unmask_per_irq(irq); +} + +#ifdef CONFIG_SMP +static inline int msp_per_irq_set_affinity(unsigned int irq, + const struct cpumask *affinity) +{ + unsigned long flags; + /* + * Calls to ack, end, startup, enable are spinlocked in setup_irq and + * __do_IRQ.Callers of this function do not spinlock,so we need to + * do so ourselves. + */ + raw_spin_lock_irqsave(&irq_desc[irq].lock, flags); + msp_per_irq_enable(irq); + raw_spin_unlock_irqrestore(&irq_desc[irq].lock, flags); + return 0; + +} +#endif + +static struct irq_chip msp_per_irq_controller = { + .name = "MSP_PER", + .startup = msp_per_irq_startup, + .shutdown = msp_per_irq_shutdown, + .enable = msp_per_irq_enable, + .disable = msp_per_irq_disable, +#ifdef CONFIG_SMP + .set_affinity = msp_per_irq_set_affinity, +#endif + .ack = msp_per_irq_ack, + .end = msp_per_irq_end, +}; + +void __init msp_per_irq_init(void) +{ + int i; + /* Mask/clear interrupts. */ + *PER_INT_MSK_REG = 0x00000000; + *PER_INT_STS_REG = 0xFFFFFFFF; + /* initialize all the IRQ descriptors */ + for (i = MSP_PER_INTBASE; i < MSP_PER_INTBASE + 32; i++) { + irq_desc[i].status = IRQ_DISABLED; + irq_desc[i].action = NULL; + irq_desc[i].depth = 1; + irq_desc[i].chip = &msp_per_irq_controller; +#ifdef CONFIG_MIPS_MT_SMTC + irq_hwmask[i] = C_IRQ4; +#endif + } +} + +void msp_per_irq_dispatch(void) +{ + u32 per_mask = *PER_INT_MSK_REG; + u32 per_status = *PER_INT_STS_REG; + u32 pending; + + pending = per_status & per_mask; + if (pending) { + do_IRQ(ffs(pending) + MSP_PER_INTBASE - 1); + } else { + spurious_interrupt(); + /* Re-enable the CIC cascaded interrupt and return */ + irq_desc[MSP_INT_CIC].chip->end(MSP_INT_CIC); + } +} -- cgit v1.2.3 From 088f3876fc9234feca0cdfdf710b8fafa87bfce1 Mon Sep 17 00:00:00 2001 From: Anoop P A <anoop.pa@gmail.com> Date: Tue, 25 Jan 2011 13:51:03 +0530 Subject: MIPS: MSP71xx: Add VSMP/SMTC support. [Ralf: Fixed more checkpatch assertions and inclusion of unnecessary header <linux/sched.h>.] Signed-off-by: Anoop P A <anoop.pa@gmail.com> To: linux-mips@linux-mips.org To: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/2042/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/pmc-sierra/msp71xx/Makefile | 2 + arch/mips/pmc-sierra/msp71xx/msp_setup.c | 10 +++ arch/mips/pmc-sierra/msp71xx/msp_smp.c | 77 +++++++++++++++++++++++ arch/mips/pmc-sierra/msp71xx/msp_smtc.c | 105 +++++++++++++++++++++++++++++++ 4 files changed, 194 insertions(+) create mode 100644 arch/mips/pmc-sierra/msp71xx/msp_smp.c create mode 100644 arch/mips/pmc-sierra/msp71xx/msp_smtc.c diff --git a/arch/mips/pmc-sierra/msp71xx/Makefile b/arch/mips/pmc-sierra/msp71xx/Makefile index b25f3542e6d1..a002fa222b25 100644 --- a/arch/mips/pmc-sierra/msp71xx/Makefile +++ b/arch/mips/pmc-sierra/msp71xx/Makefile @@ -10,3 +10,5 @@ obj-$(CONFIG_IRQ_MSP_CIC) += msp_irq_cic.o msp_irq_per.o obj-$(CONFIG_PCI) += msp_pci.o obj-$(CONFIG_MSPETH) += msp_eth.o obj-$(CONFIG_USB_MSP71XX) += msp_usb.o +obj-$(CONFIG_MIPS_MT_SMP) += msp_smp.o +obj-$(CONFIG_MIPS_MT_SMTC) += msp_smtc.o diff --git a/arch/mips/pmc-sierra/msp71xx/msp_setup.c b/arch/mips/pmc-sierra/msp71xx/msp_setup.c index a54e85b3cf29..fb37a10e0309 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_setup.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_setup.c @@ -146,6 +146,8 @@ void __init plat_mem_setup(void) pm_power_off = msp_power_off; } +extern struct plat_smp_ops msp_smtc_smp_ops; + void __init prom_init(void) { unsigned long family; @@ -226,6 +228,14 @@ void __init prom_init(void) */ msp_serial_setup(); +#ifdef CONFIG_MIPS_MT_SMP + register_smp_ops(&vsmp_smp_ops); +#endif + +#ifdef CONFIG_MIPS_MT_SMTC + register_smp_ops(&msp_smtc_smp_ops); +#endif + #ifdef CONFIG_PMCTWILED /* * Setup LED states before the subsys_initcall loads other diff --git a/arch/mips/pmc-sierra/msp71xx/msp_smp.c b/arch/mips/pmc-sierra/msp71xx/msp_smp.c new file mode 100644 index 000000000000..43a9e26e1c69 --- /dev/null +++ b/arch/mips/pmc-sierra/msp71xx/msp_smp.c @@ -0,0 +1,77 @@ +/* + * Copyright (C) 2000, 2001, 2004 MIPS Technologies, Inc. + * Copyright (C) 2001 Ralf Baechle + * Copyright (C) 2010 PMC-Sierra, Inc. + * + * VSMP support for MSP platforms . Derived from malta vsmp support. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + */ +#include <linux/smp.h> +#include <linux/interrupt.h> + +#ifdef CONFIG_MIPS_MT_SMP +#define MIPS_CPU_IPI_RESCHED_IRQ 0 /* SW int 0 for resched */ +#define MIPS_CPU_IPI_CALL_IRQ 1 /* SW int 1 for call */ + + +static void ipi_resched_dispatch(void) +{ + do_IRQ(MIPS_CPU_IPI_RESCHED_IRQ); +} + +static void ipi_call_dispatch(void) +{ + do_IRQ(MIPS_CPU_IPI_CALL_IRQ); +} + +static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id) +{ + return IRQ_HANDLED; +} + +static irqreturn_t ipi_call_interrupt(int irq, void *dev_id) +{ + smp_call_function_interrupt(); + + return IRQ_HANDLED; +} + +static struct irqaction irq_resched = { + .handler = ipi_resched_interrupt, + .flags = IRQF_DISABLED | IRQF_PERCPU, + .name = "IPI_resched" +}; + +static struct irqaction irq_call = { + .handler = ipi_call_interrupt, + .flags = IRQF_DISABLED | IRQF_PERCPU, + .name = "IPI_call" +}; + +void __init arch_init_ipiirq(int irq, struct irqaction *action) +{ + setup_irq(irq, action); + set_irq_handler(irq, handle_percpu_irq); +} + +void __init msp_vsmp_int_init(void) +{ + set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch); + set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch); + arch_init_ipiirq(MIPS_CPU_IPI_RESCHED_IRQ, &irq_resched); + arch_init_ipiirq(MIPS_CPU_IPI_CALL_IRQ, &irq_call); +} +#endif /* CONFIG_MIPS_MT_SMP */ diff --git a/arch/mips/pmc-sierra/msp71xx/msp_smtc.c b/arch/mips/pmc-sierra/msp71xx/msp_smtc.c new file mode 100644 index 000000000000..c8dcc1c01e18 --- /dev/null +++ b/arch/mips/pmc-sierra/msp71xx/msp_smtc.c @@ -0,0 +1,105 @@ +/* + * MSP71xx Platform-specific hooks for SMP operation + */ +#include <linux/irq.h> +#include <linux/init.h> + +#include <asm/mipsmtregs.h> +#include <asm/mipsregs.h> +#include <asm/smtc.h> +#include <asm/smtc_ipi.h> + +/* VPE/SMP Prototype implements platform interfaces directly */ + +/* + * Cause the specified action to be performed on a targeted "CPU" + */ + +static void msp_smtc_send_ipi_single(int cpu, unsigned int action) +{ + /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ + smtc_send_ipi(cpu, LINUX_SMP_IPI, action); +} + +static void msp_smtc_send_ipi_mask(const struct cpumask *mask, + unsigned int action) +{ + unsigned int i; + + for_each_cpu(i, mask) + msp_smtc_send_ipi_single(i, action); +} + +/* + * Post-config but pre-boot cleanup entry point + */ +static void __cpuinit msp_smtc_init_secondary(void) +{ + int myvpe; + + /* Don't enable Malta I/O interrupts (IP2) for secondary VPEs */ + myvpe = read_c0_tcbind() & TCBIND_CURVPE; + if (myvpe > 0) + change_c0_status(ST0_IM, STATUSF_IP0 | STATUSF_IP1 | + STATUSF_IP6 | STATUSF_IP7); + smtc_init_secondary(); +} + +/* + * Platform "CPU" startup hook + */ +static void __cpuinit msp_smtc_boot_secondary(int cpu, + struct task_struct *idle) +{ + smtc_boot_secondary(cpu, idle); +} + +/* + * SMP initialization finalization entry point + */ +static void __cpuinit msp_smtc_smp_finish(void) +{ + smtc_smp_finish(); +} + +/* + * Hook for after all CPUs are online + */ + +static void msp_smtc_cpus_done(void) +{ +} + +/* + * Platform SMP pre-initialization + * + * As noted above, we can assume a single CPU for now + * but it may be multithreaded. + */ + +static void __init msp_smtc_smp_setup(void) +{ + /* + * we won't get the definitive value until + * we've run smtc_prepare_cpus later, but + */ + + if (read_c0_config3() & (1 << 2)) + smp_num_siblings = smtc_build_cpu_map(0); +} + +static void __init msp_smtc_prepare_cpus(unsigned int max_cpus) +{ + smtc_prepare_cpus(max_cpus); +} + +struct plat_smp_ops msp_smtc_smp_ops = { + .send_ipi_single = msp_smtc_send_ipi_single, + .send_ipi_mask = msp_smtc_send_ipi_mask, + .init_secondary = msp_smtc_init_secondary, + .smp_finish = msp_smtc_smp_finish, + .cpus_done = msp_smtc_cpus_done, + .boot_secondary = msp_smtc_boot_secondary, + .smp_setup = msp_smtc_smp_setup, + .prepare_cpus = msp_smtc_prepare_cpus, +}; -- cgit v1.2.3 From 5027070b3ca2eb90adbf40c2d67f792818ae9077 Mon Sep 17 00:00:00 2001 From: Anoop P A <anoop.pa@gmail.com> Date: Tue, 25 Jan 2011 13:52:05 +0530 Subject: MIPS: MSP71xx: Platform support for MSP on-chip USB controller. Signed-off-by: Anoop P A <anoop.pa@gmail.com> To: linux-mips@linux-mips.org To: linux-kernel@vger.kernel.org Cc: Anoop P A <anoop.pa@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/2043/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- .../mips/include/asm/pmc-sierra/msp71xx/msp_regs.h | 17 +- arch/mips/include/asm/pmc-sierra/msp71xx/msp_usb.h | 144 +++++++++++++ arch/mips/pmc-sierra/Kconfig | 5 + arch/mips/pmc-sierra/msp71xx/Makefile | 2 +- arch/mips/pmc-sierra/msp71xx/msp_usb.c | 239 +++++++++++++++------ 5 files changed, 335 insertions(+), 72 deletions(-) create mode 100644 arch/mips/include/asm/pmc-sierra/msp71xx/msp_usb.h diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regs.h b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regs.h index 603eb737b4a8..692c1b658b92 100644 --- a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regs.h +++ b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_regs.h @@ -91,12 +91,10 @@ /* MAC C device registers */ #define MSP_ADSL2_BASE (MSP_MSB_BASE + 0xA80000) /* ADSL2 device registers */ -#define MSP_USB_BASE (MSP_MSB_BASE + 0xB40000) - /* USB device registers */ -#define MSP_USB_BASE_START (MSP_MSB_BASE + 0xB40100) - /* USB device registers */ -#define MSP_USB_BASE_END (MSP_MSB_BASE + 0xB401FF) - /* USB device registers */ +#define MSP_USB0_BASE (MSP_MSB_BASE + 0xB00000) + /* USB0 device registers */ +#define MSP_USB1_BASE (MSP_MSB_BASE + 0x300000) + /* USB1 device registers */ #define MSP_CPUIF_BASE (MSP_MSB_BASE + 0xC00000) /* CPU interface registers */ @@ -319,8 +317,11 @@ #define CPU_ERR2_REG regptr(MSP_SLP_BASE + 0x184) /* CPU/SLP Error status 1 */ -#define EXTENDED_GPIO_REG regptr(MSP_SLP_BASE + 0x188) - /* Extended GPIO register */ +/* Extended GPIO registers */ +#define EXTENDED_GPIO1_REG regptr(MSP_SLP_BASE + 0x188) +#define EXTENDED_GPIO2_REG regptr(MSP_SLP_BASE + 0x18c) +#define EXTENDED_GPIO_REG EXTENDED_GPIO1_REG + /* Backward-compatibility */ /* System Error registers */ #define SLP_ERR_STS_REG regptr(MSP_SLP_BASE + 0x190) diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_usb.h b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_usb.h new file mode 100644 index 000000000000..4c9348df9df2 --- /dev/null +++ b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_usb.h @@ -0,0 +1,144 @@ +/****************************************************************** + * Copyright (c) 2000-2007 PMC-Sierra INC. + * + * This program is free software; you can redistribute it + * and/or modify it under the terms of the GNU General + * Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be + * useful, but WITHOUT ANY WARRANTY; without even the implied + * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR + * PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA + * 02139, USA. + * + * PMC-SIERRA INC. DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS + * SOFTWARE. + */ +#ifndef MSP_USB_H_ +#define MSP_USB_H_ + +#ifdef CONFIG_MSP_HAS_DUAL_USB +#define NUM_USB_DEVS 2 +#else +#define NUM_USB_DEVS 1 +#endif + +/* Register spaces for USB host 0 */ +#define MSP_USB0_MAB_START (MSP_USB0_BASE + 0x0) +#define MSP_USB0_MAB_END (MSP_USB0_BASE + 0x17) +#define MSP_USB0_ID_START (MSP_USB0_BASE + 0x40000) +#define MSP_USB0_ID_END (MSP_USB0_BASE + 0x4008f) +#define MSP_USB0_HS_START (MSP_USB0_BASE + 0x40100) +#define MSP_USB0_HS_END (MSP_USB0_BASE + 0x401FF) + +/* Register spaces for USB host 1 */ +#define MSP_USB1_MAB_START (MSP_USB1_BASE + 0x0) +#define MSP_USB1_MAB_END (MSP_USB1_BASE + 0x17) +#define MSP_USB1_ID_START (MSP_USB1_BASE + 0x40000) +#define MSP_USB1_ID_END (MSP_USB1_BASE + 0x4008f) +#define MSP_USB1_HS_START (MSP_USB1_BASE + 0x40100) +#define MSP_USB1_HS_END (MSP_USB1_BASE + 0x401ff) + +/* USB Identification registers */ +struct msp_usbid_regs { + u32 id; /* 0x0: Identification register */ + u32 hwgen; /* 0x4: General HW params */ + u32 hwhost; /* 0x8: Host HW params */ + u32 hwdev; /* 0xc: Device HW params */ + u32 hwtxbuf; /* 0x10: Tx buffer HW params */ + u32 hwrxbuf; /* 0x14: Rx buffer HW params */ + u32 reserved[26]; + u32 timer0_load; /* 0x80: General-purpose timer 0 load*/ + u32 timer0_ctrl; /* 0x84: General-purpose timer 0 control */ + u32 timer1_load; /* 0x88: General-purpose timer 1 load*/ + u32 timer1_ctrl; /* 0x8c: General-purpose timer 1 control */ +}; + +/* MSBus to AMBA registers */ +struct msp_mab_regs { + u32 isr; /* 0x0: Interrupt status */ + u32 imr; /* 0x4: Interrupt mask */ + u32 thcr0; /* 0x8: Transaction header capture 0 */ + u32 thcr1; /* 0xc: Transaction header capture 1 */ + u32 int_stat; /* 0x10: Interrupt status summary */ + u32 phy_cfg; /* 0x14: USB phy config */ +}; + +/* EHCI registers */ +struct msp_usbhs_regs { + u32 hciver; /* 0x0: Version and offset to operational regs */ + u32 hcsparams; /* 0x4: Host control structural parameters */ + u32 hccparams; /* 0x8: Host control capability parameters */ + u32 reserved0[5]; + u32 dciver; /* 0x20: Device interface version */ + u32 dccparams; /* 0x24: Device control capability parameters */ + u32 reserved1[6]; + u32 cmd; /* 0x40: USB command */ + u32 sts; /* 0x44: USB status */ + u32 int_ena; /* 0x48: USB interrupt enable */ + u32 frindex; /* 0x4c: Frame index */ + u32 reserved3; + union { + struct { + u32 flb_addr; /* 0x54: Frame list base address */ + u32 next_async_addr; /* 0x58: next asynchronous addr */ + u32 ttctrl; /* 0x5c: embedded transaction translator + async buffer status */ + u32 burst_size; /* 0x60: Controller burst size */ + u32 tx_fifo_ctrl; /* 0x64: Tx latency FIFO tuning */ + u32 reserved0[4]; + u32 endpt_nak; /* 0x78: Endpoint NAK */ + u32 endpt_nak_ena; /* 0x7c: Endpoint NAK enable */ + u32 cfg_flag; /* 0x80: Config flag */ + u32 port_sc1; /* 0x84: Port status & control 1 */ + u32 reserved1[7]; + u32 otgsc; /* 0xa4: OTG status & control */ + u32 mode; /* 0xa8: USB controller mode */ + } host; + + struct { + u32 dev_addr; /* 0x54: Device address */ + u32 endpt_list_addr; /* 0x58: Endpoint list address */ + u32 reserved0[7]; + u32 endpt_nak; /* 0x74 */ + u32 endpt_nak_ctrl; /* 0x78 */ + u32 cfg_flag; /* 0x80 */ + u32 port_sc1; /* 0x84: Port status & control 1 */ + u32 reserved[7]; + u32 otgsc; /* 0xa4: OTG status & control */ + u32 mode; /* 0xa8: USB controller mode */ + u32 endpt_setup_stat; /* 0xac */ + u32 endpt_prime; /* 0xb0 */ + u32 endpt_flush; /* 0xb4 */ + u32 endpt_stat; /* 0xb8 */ + u32 endpt_complete; /* 0xbc */ + u32 endpt_ctrl0; /* 0xc0 */ + u32 endpt_ctrl1; /* 0xc4 */ + u32 endpt_ctrl2; /* 0xc8 */ + u32 endpt_ctrl3; /* 0xcc */ + } device; + } u; +}; +/* + * Container for the more-generic platform_device. + * This exists mainly as a way to map the non-standard register + * spaces and make them accessible to the USB ISR. + */ +struct mspusb_device { + struct msp_mab_regs __iomem *mab_regs; + struct msp_usbid_regs __iomem *usbid_regs; + struct msp_usbhs_regs __iomem *usbhs_regs; + struct platform_device dev; +}; + +#define to_mspusb_device(x) container_of((x), struct mspusb_device, dev) +#define TO_HOST_ID(x) ((x) & 0x3) +#endif /*MSP_USB_H_*/ diff --git a/arch/mips/pmc-sierra/Kconfig b/arch/mips/pmc-sierra/Kconfig index 8d798497c614..c437b8a8ab8c 100644 --- a/arch/mips/pmc-sierra/Kconfig +++ b/arch/mips/pmc-sierra/Kconfig @@ -23,6 +23,7 @@ config PMC_MSP7120_GW select SYS_SUPPORTS_MULTITHREADING select IRQ_MSP_CIC select HW_HAS_PCI + select MSP_HAS_USB config PMC_MSP7120_FPGA bool "PMC-Sierra MSP7120 FPGA" @@ -35,3 +36,7 @@ endchoice config HYPERTRANSPORT bool "Hypertransport Support for PMC-Sierra Yosemite" depends on PMC_YOSEMITE + +config MSP_HAS_USB + boolean + depends on PMC_MSP diff --git a/arch/mips/pmc-sierra/msp71xx/Makefile b/arch/mips/pmc-sierra/msp71xx/Makefile index a002fa222b25..f26cab349c38 100644 --- a/arch/mips/pmc-sierra/msp71xx/Makefile +++ b/arch/mips/pmc-sierra/msp71xx/Makefile @@ -9,6 +9,6 @@ obj-$(CONFIG_IRQ_MSP_SLP) += msp_irq_slp.o obj-$(CONFIG_IRQ_MSP_CIC) += msp_irq_cic.o msp_irq_per.o obj-$(CONFIG_PCI) += msp_pci.o obj-$(CONFIG_MSPETH) += msp_eth.o -obj-$(CONFIG_USB_MSP71XX) += msp_usb.o +obj-$(CONFIG_MSP_HAS_USB) += msp_usb.o obj-$(CONFIG_MIPS_MT_SMP) += msp_smp.o obj-$(CONFIG_MIPS_MT_SMTC) += msp_smtc.o diff --git a/arch/mips/pmc-sierra/msp71xx/msp_usb.c b/arch/mips/pmc-sierra/msp71xx/msp_usb.c index 0ee01e359dd8..9a1aef89bd4c 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_usb.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_usb.c @@ -1,7 +1,7 @@ /* * The setup file for USB related hardware on PMC-Sierra MSP processors. * - * Copyright 2006-2007 PMC-Sierra, Inc. + * Copyright 2006 PMC-Sierra, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -23,8 +23,8 @@ * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ +#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET) -#include <linux/dma-mapping.h> #include <linux/init.h> #include <linux/ioport.h> #include <linux/platform_device.h> @@ -34,40 +34,56 @@ #include <msp_regs.h> #include <msp_int.h> #include <msp_prom.h> +#include <msp_usb.h> + #if defined(CONFIG_USB_EHCI_HCD) -static struct resource msp_usbhost_resources [] = { - [0] = { - .start = MSP_USB_BASE_START, - .end = MSP_USB_BASE_END, - .flags = IORESOURCE_MEM, +static struct resource msp_usbhost0_resources[] = { + [0] = { /* EHCI-HS operational and capabilities registers */ + .start = MSP_USB0_HS_START, + .end = MSP_USB0_HS_END, + .flags = IORESOURCE_MEM, }, [1] = { - .start = MSP_INT_USB, - .end = MSP_INT_USB, - .flags = IORESOURCE_IRQ, + .start = MSP_INT_USB, + .end = MSP_INT_USB, + .flags = IORESOURCE_IRQ, + }, + [2] = { /* MSBus-to-AMBA bridge register space */ + .start = MSP_USB0_MAB_START, + .end = MSP_USB0_MAB_END, + .flags = IORESOURCE_MEM, + }, + [3] = { /* Identification and general hardware parameters */ + .start = MSP_USB0_ID_START, + .end = MSP_USB0_ID_END, + .flags = IORESOURCE_MEM, }, }; -static u64 msp_usbhost_dma_mask = DMA_BIT_MASK(32); +static u64 msp_usbhost0_dma_mask = 0xffffffffUL; -static struct platform_device msp_usbhost_device = { - .name = "pmcmsp-ehci", - .id = 0, +static struct mspusb_device msp_usbhost0_device = { .dev = { - .dma_mask = &msp_usbhost_dma_mask, - .coherent_dma_mask = DMA_BIT_MASK(32), + .name = "pmcmsp-ehci", + .id = 0, + .dev = { + .dma_mask = &msp_usbhost0_dma_mask, + .coherent_dma_mask = 0xffffffffUL, + }, + .num_resources = ARRAY_SIZE(msp_usbhost0_resources), + .resource = msp_usbhost0_resources, }, - .num_resources = ARRAY_SIZE(msp_usbhost_resources), - .resource = msp_usbhost_resources, }; -#endif /* CONFIG_USB_EHCI_HCD */ -#if defined(CONFIG_USB_GADGET) -static struct resource msp_usbdev_resources [] = { - [0] = { - .start = MSP_USB_BASE, - .end = MSP_USB_BASE_END, +/* MSP7140/MSP82XX has two USB2 hosts. */ +#ifdef CONFIG_MSP_HAS_DUAL_USB +static u64 msp_usbhost1_dma_mask = 0xffffffffUL; + +static struct resource msp_usbhost1_resources[] = { + [0] = { /* EHCI-HS operational and capabilities registers */ + .start = MSP_USB1_HS_START, + .end = MSP_USB1_HS_END, .flags = IORESOURCE_MEM, }, [1] = { @@ -75,76 +91,173 @@ static struct resource msp_usbdev_resources [] = { .end = MSP_INT_USB, .flags = IORESOURCE_IRQ, }, + [2] = { /* MSBus-to-AMBA bridge register space */ + .start = MSP_USB1_MAB_START, + .end = MSP_USB1_MAB_END, + .flags = IORESOURCE_MEM, + }, + [3] = { /* Identification and general hardware parameters */ + .start = MSP_USB1_ID_START, + .end = MSP_USB1_ID_END, + .flags = IORESOURCE_MEM, + }, +}; + +static struct mspusb_device msp_usbhost1_device = { + .dev = { + .name = "pmcmsp-ehci", + .id = 1, + .dev = { + .dma_mask = &msp_usbhost1_dma_mask, + .coherent_dma_mask = 0xffffffffUL, + }, + .num_resources = ARRAY_SIZE(msp_usbhost1_resources), + .resource = msp_usbhost1_resources, + }, }; +#endif /* CONFIG_MSP_HAS_DUAL_USB */ +#endif /* CONFIG_USB_EHCI_HCD */ -static u64 msp_usbdev_dma_mask = DMA_BIT_MASK(32); +#if defined(CONFIG_USB_GADGET) +static struct resource msp_usbdev0_resources[] = { + [0] = { /* EHCI-HS operational and capabilities registers */ + .start = MSP_USB0_HS_START, + .end = MSP_USB0_HS_END, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = MSP_INT_USB, + .end = MSP_INT_USB, + .flags = IORESOURCE_IRQ, + }, + [2] = { /* MSBus-to-AMBA bridge register space */ + .start = MSP_USB0_MAB_START, + .end = MSP_USB0_MAB_END, + .flags = IORESOURCE_MEM, + }, + [3] = { /* Identification and general hardware parameters */ + .start = MSP_USB0_ID_START, + .end = MSP_USB0_ID_END, + .flags = IORESOURCE_MEM, + }, +}; -static struct platform_device msp_usbdev_device = { - .name = "msp71xx_udc", - .id = 0, +static u64 msp_usbdev_dma_mask = 0xffffffffUL; + +/* This may need to be converted to a mspusb_device, too. */ +static struct mspusb_device msp_usbdev0_device = { .dev = { - .dma_mask = &msp_usbdev_dma_mask, - .coherent_dma_mask = DMA_BIT_MASK(32), + .name = "msp71xx_udc", + .id = 0, + .dev = { + .dma_mask = &msp_usbdev_dma_mask, + .coherent_dma_mask = 0xffffffffUL, + }, + .num_resources = ARRAY_SIZE(msp_usbdev0_resources), + .resource = msp_usbdev0_resources, }, - .num_resources = ARRAY_SIZE(msp_usbdev_resources), - .resource = msp_usbdev_resources, }; -#endif /* CONFIG_USB_GADGET */ -#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET) -static struct platform_device *msp_devs[1]; -#endif +#ifdef CONFIG_MSP_HAS_DUAL_USB +static struct resource msp_usbdev1_resources[] = { + [0] = { /* EHCI-HS operational and capabilities registers */ + .start = MSP_USB1_HS_START, + .end = MSP_USB1_HS_END, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = MSP_INT_USB, + .end = MSP_INT_USB, + .flags = IORESOURCE_IRQ, + }, + [2] = { /* MSBus-to-AMBA bridge register space */ + .start = MSP_USB1_MAB_START, + .end = MSP_USB1_MAB_END, + .flags = IORESOURCE_MEM, + }, + [3] = { /* Identification and general hardware parameters */ + .start = MSP_USB1_ID_START, + .end = MSP_USB1_ID_END, + .flags = IORESOURCE_MEM, + }, +}; +/* This may need to be converted to a mspusb_device, too. */ +static struct mspusb_device msp_usbdev1_device = { + .dev = { + .name = "msp71xx_udc", + .id = 0, + .dev = { + .dma_mask = &msp_usbdev_dma_mask, + .coherent_dma_mask = 0xffffffffUL, + }, + .num_resources = ARRAY_SIZE(msp_usbdev1_resources), + .resource = msp_usbdev1_resources, + }, +}; + +#endif /* CONFIG_MSP_HAS_DUAL_USB */ +#endif /* CONFIG_USB_GADGET */ static int __init msp_usb_setup(void) { -#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET) - char *strp; - char envstr[32]; - unsigned int val = 0; - int result = 0; + char *strp; + char envstr[32]; + struct platform_device *msp_devs[NUM_USB_DEVS]; + unsigned int val; + /* construct environment name usbmode */ + /* set usbmode <host/device> as pmon environment var */ /* - * construct environment name usbmode - * set usbmode <host/device> as pmon environment var + * Could this perhaps be integrated into the "features" env var? + * Use the features key "U", and follow with "H" for host-mode, + * "D" for device-mode. If it works for Ethernet, why not USB... + * -- hammtrev, 2007/03/22 */ snprintf((char *)&envstr[0], sizeof(envstr), "usbmode"); -#if defined(CONFIG_USB_EHCI_HCD) - /* default to host mode */ + /* set default host mode */ val = 1; -#endif /* get environment string */ strp = prom_getenv((char *)&envstr[0]); if (strp) { + /* compare string */ if (!strcmp(strp, "device")) val = 0; } if (val) { #if defined(CONFIG_USB_EHCI_HCD) - /* get host mode device */ - msp_devs[0] = &msp_usbhost_device; - ppfinit("platform add USB HOST done %s.\n", - msp_devs[0]->name); - - result = platform_add_devices(msp_devs, ARRAY_SIZE(msp_devs)); -#endif /* CONFIG_USB_EHCI_HCD */ - } + msp_devs[0] = &msp_usbhost0_device.dev; + ppfinit("platform add USB HOST done %s.\n", msp_devs[0]->name); +#ifdef CONFIG_MSP_HAS_DUAL_USB + msp_devs[1] = &msp_usbhost1_device.dev; + ppfinit("platform add USB HOST done %s.\n", msp_devs[1]->name); +#endif +#else + ppfinit("%s: echi_hcd not supported\n", __FILE__); +#endif /* CONFIG_USB_EHCI_HCD */ + } else { #if defined(CONFIG_USB_GADGET) - else { /* get device mode structure */ - msp_devs[0] = &msp_usbdev_device; - ppfinit("platform add USB DEVICE done %s.\n", - msp_devs[0]->name); - - result = platform_add_devices(msp_devs, ARRAY_SIZE(msp_devs)); + msp_devs[0] = &msp_usbdev0_device.dev; + ppfinit("platform add USB DEVICE done %s.\n" + , msp_devs[0]->name); +#ifdef CONFIG_MSP_HAS_DUAL_USB + msp_devs[1] = &msp_usbdev1_device.dev; + ppfinit("platform add USB DEVICE done %s.\n" + , msp_devs[1]->name); +#endif +#else + ppfinit("%s: usb_gadget not supported\n", __FILE__); +#endif /* CONFIG_USB_GADGET */ } -#endif /* CONFIG_USB_GADGET */ -#endif /* CONFIG_USB_EHCI_HCD || CONFIG_USB_GADGET */ + /* add device */ + platform_add_devices(msp_devs, ARRAY_SIZE(msp_devs)); - return result; + return 0; } subsys_initcall(msp_usb_setup); +#endif /* CONFIG_USB_EHCI_HCD || CONFIG_USB_GADGET */ -- cgit v1.2.3 From ec9ac747be8c42a653468295162cbc02d0a8a8a6 Mon Sep 17 00:00:00 2001 From: Anoop P A <anoop.pa@gmail.com> Date: Tue, 25 Jan 2011 23:24:09 +0530 Subject: MIPS: MSP71xx: Platform support for On-chip MSP ethernet devices. Some of MSP family SoC's come with legacy 100Mbps mspeth while some comes with newer Gigabit TSMAC.Following patch adds platform support for both types of MAC's. If TSMAC is not selected assume platform having legacy mspeth. Add gpio_macros as well which is required for resetting the PHY. [Ralf: Killed all typedefs.] Signed-off-by: Anoop P A <anoop.pa@gmail.com> To: linux-mips@linux-mips.org To: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/2048/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- .../asm/pmc-sierra/msp71xx/msp_gpio_macros.h | 343 +++++++++++++++++++++ arch/mips/pmc-sierra/Kconfig | 10 + arch/mips/pmc-sierra/msp71xx/Makefile | 2 +- arch/mips/pmc-sierra/msp71xx/msp_eth.c | 187 +++++++++++ 4 files changed, 541 insertions(+), 1 deletion(-) create mode 100644 arch/mips/include/asm/pmc-sierra/msp71xx/msp_gpio_macros.h create mode 100644 arch/mips/pmc-sierra/msp71xx/msp_eth.c diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/msp_gpio_macros.h b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_gpio_macros.h new file mode 100644 index 000000000000..156f320c69e7 --- /dev/null +++ b/arch/mips/include/asm/pmc-sierra/msp71xx/msp_gpio_macros.h @@ -0,0 +1,343 @@ +/* + * + * Macros for external SMP-safe access to the PMC MSP71xx reference + * board GPIO pins + * + * Copyright 2010 PMC-Sierra, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __MSP_GPIO_MACROS_H__ +#define __MSP_GPIO_MACROS_H__ + +#include <msp_regops.h> +#include <msp_regs.h> + +#ifdef CONFIG_PMC_MSP7120_GW +#define MSP_NUM_GPIOS 20 +#else +#define MSP_NUM_GPIOS 28 +#endif + +/* -- GPIO Enumerations -- */ +enum msp_gpio_data { + MSP_GPIO_LO = 0, + MSP_GPIO_HI = 1, + MSP_GPIO_NONE, /* Special - Means pin is out of range */ + MSP_GPIO_TOGGLE, /* Special - Sets pin to opposite */ +}; + +enum msp_gpio_mode { + MSP_GPIO_INPUT = 0x0, + /* MSP_GPIO_ INTERRUPT = 0x1, Not supported yet */ + MSP_GPIO_UART_INPUT = 0x2, /* Only GPIO 4 or 5 */ + MSP_GPIO_OUTPUT = 0x8, + MSP_GPIO_UART_OUTPUT = 0x9, /* Only GPIO 2 or 3 */ + MSP_GPIO_PERIF_TIMERA = 0x9, /* Only GPIO 0 or 1 */ + MSP_GPIO_PERIF_TIMERB = 0xa, /* Only GPIO 0 or 1 */ + MSP_GPIO_UNKNOWN = 0xb, /* No such GPIO or mode */ +}; + +/* -- Static Tables -- */ + +/* Maps pins to data register */ +static volatile u32 * const MSP_GPIO_DATA_REGISTER[] = { + /* GPIO 0 and 1 on the first register */ + GPIO_DATA1_REG, GPIO_DATA1_REG, + /* GPIO 2, 3, 4, and 5 on the second register */ + GPIO_DATA2_REG, GPIO_DATA2_REG, GPIO_DATA2_REG, GPIO_DATA2_REG, + /* GPIO 6, 7, 8, and 9 on the third register */ + GPIO_DATA3_REG, GPIO_DATA3_REG, GPIO_DATA3_REG, GPIO_DATA3_REG, + /* GPIO 10, 11, 12, 13, 14, and 15 on the fourth register */ + GPIO_DATA4_REG, GPIO_DATA4_REG, GPIO_DATA4_REG, GPIO_DATA4_REG, + GPIO_DATA4_REG, GPIO_DATA4_REG, + /* GPIO 16 - 23 on the first strange EXTENDED register */ + EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, + EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, + EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, + /* GPIO 24 - 27 on the second strange EXTENDED register */ + EXTENDED_GPIO2_REG, EXTENDED_GPIO2_REG, EXTENDED_GPIO2_REG, + EXTENDED_GPIO2_REG, +}; + +/* Maps pins to mode register */ +static volatile u32 * const MSP_GPIO_MODE_REGISTER[] = { + /* GPIO 0 and 1 on the first register */ + GPIO_CFG1_REG, GPIO_CFG1_REG, + /* GPIO 2, 3, 4, and 5 on the second register */ + GPIO_CFG2_REG, GPIO_CFG2_REG, GPIO_CFG2_REG, GPIO_CFG2_REG, + /* GPIO 6, 7, 8, and 9 on the third register */ + GPIO_CFG3_REG, GPIO_CFG3_REG, GPIO_CFG3_REG, GPIO_CFG3_REG, + /* GPIO 10, 11, 12, 13, 14, and 15 on the fourth register */ + GPIO_CFG4_REG, GPIO_CFG4_REG, GPIO_CFG4_REG, GPIO_CFG4_REG, + GPIO_CFG4_REG, GPIO_CFG4_REG, + /* GPIO 16 - 23 on the first strange EXTENDED register */ + EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, + EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, + EXTENDED_GPIO1_REG, EXTENDED_GPIO1_REG, + /* GPIO 24 - 27 on the second strange EXTENDED register */ + EXTENDED_GPIO2_REG, EXTENDED_GPIO2_REG, EXTENDED_GPIO2_REG, + EXTENDED_GPIO2_REG, +}; + +/* Maps 'basic' pins to relative offset from 0 per register */ +static int MSP_GPIO_OFFSET[] = { + /* GPIO 0 and 1 on the first register */ + 0, 0, + /* GPIO 2, 3, 4, and 5 on the second register */ + 2, 2, 2, 2, + /* GPIO 6, 7, 8, and 9 on the third register */ + 6, 6, 6, 6, + /* GPIO 10, 11, 12, 13, 14, and 15 on the fourth register */ + 10, 10, 10, 10, 10, 10, +}; + +/* Maps MODE to allowed pin mask */ +static unsigned int MSP_GPIO_MODE_ALLOWED[] = { + 0xffffffff, /* Mode 0 - INPUT */ + 0x00000, /* Mode 1 - INTERRUPT */ + 0x00030, /* Mode 2 - UART_INPUT (GPIO 4, 5)*/ + 0, 0, 0, 0, 0, /* Modes 3, 4, 5, 6, and 7 are reserved */ + 0xffffffff, /* Mode 8 - OUTPUT */ + 0x0000f, /* Mode 9 - UART_OUTPUT/ + PERF_TIMERA (GPIO 0, 1, 2, 3) */ + 0x00003, /* Mode a - PERF_TIMERB (GPIO 0, 1) */ + 0x00000, /* Mode b - Not really a mode! */ +}; + +/* -- Bit masks -- */ + +/* This gives you the 'register relative offset gpio' number */ +#define OFFSET_GPIO_NUMBER(gpio) (gpio - MSP_GPIO_OFFSET[gpio]) + +/* These take the 'register relative offset gpio' number */ +#define BASIC_DATA_REG_MASK(ogpio) (1 << ogpio) +#define BASIC_MODE_REG_VALUE(mode, ogpio) \ + (mode << BASIC_MODE_REG_SHIFT(ogpio)) +#define BASIC_MODE_REG_MASK(ogpio) \ + BASIC_MODE_REG_VALUE(0xf, ogpio) +#define BASIC_MODE_REG_SHIFT(ogpio) (ogpio * 4) +#define BASIC_MODE_REG_FROM_REG(data, ogpio) \ + ((data & BASIC_MODE_REG_MASK(ogpio)) >> BASIC_MODE_REG_SHIFT(ogpio)) + +/* These take the actual GPIO number (0 through 15) */ +#define BASIC_DATA_MASK(gpio) \ + BASIC_DATA_REG_MASK(OFFSET_GPIO_NUMBER(gpio)) +#define BASIC_MODE_MASK(gpio) \ + BASIC_MODE_REG_MASK(OFFSET_GPIO_NUMBER(gpio)) +#define BASIC_MODE(mode, gpio) \ + BASIC_MODE_REG_VALUE(mode, OFFSET_GPIO_NUMBER(gpio)) +#define BASIC_MODE_SHIFT(gpio) \ + BASIC_MODE_REG_SHIFT(OFFSET_GPIO_NUMBER(gpio)) +#define BASIC_MODE_FROM_REG(data, gpio) \ + BASIC_MODE_REG_FROM_REG(data, OFFSET_GPIO_NUMBER(gpio)) + +/* + * Each extended GPIO register is 32 bits long and is responsible for up to + * eight GPIOs. The least significant 16 bits contain the set and clear bit + * pair for each of the GPIOs. The most significant 16 bits contain the + * disable and enable bit pair for each of the GPIOs. For example, the + * extended GPIO reg for GPIOs 16-23 is as follows: + * + * 31: GPIO23_DISABLE + * ... + * 19: GPIO17_DISABLE + * 18: GPIO17_ENABLE + * 17: GPIO16_DISABLE + * 16: GPIO16_ENABLE + * ... + * 3: GPIO17_SET + * 2: GPIO17_CLEAR + * 1: GPIO16_SET + * 0: GPIO16_CLEAR + */ + +/* This gives the 'register relative offset gpio' number */ +#define EXTENDED_OFFSET_GPIO(gpio) (gpio < 24 ? gpio - 16 : gpio - 24) + +/* These take the 'register relative offset gpio' number */ +#define EXTENDED_REG_DISABLE(ogpio) (0x2 << ((ogpio * 2) + 16)) +#define EXTENDED_REG_ENABLE(ogpio) (0x1 << ((ogpio * 2) + 16)) +#define EXTENDED_REG_SET(ogpio) (0x2 << (ogpio * 2)) +#define EXTENDED_REG_CLR(ogpio) (0x1 << (ogpio * 2)) + +/* These take the actual GPIO number (16 through 27) */ +#define EXTENDED_DISABLE(gpio) \ + EXTENDED_REG_DISABLE(EXTENDED_OFFSET_GPIO(gpio)) +#define EXTENDED_ENABLE(gpio) \ + EXTENDED_REG_ENABLE(EXTENDED_OFFSET_GPIO(gpio)) +#define EXTENDED_SET(gpio) \ + EXTENDED_REG_SET(EXTENDED_OFFSET_GPIO(gpio)) +#define EXTENDED_CLR(gpio) \ + EXTENDED_REG_CLR(EXTENDED_OFFSET_GPIO(gpio)) + +#define EXTENDED_FULL_MASK (0xffffffff) + +/* -- API inline-functions -- */ + +/* + * Gets the current value of the specified pin + */ +static inline enum msp_gpio_data msp_gpio_pin_get(unsigned int gpio) +{ + u32 pinhi_mask = 0, pinhi_mask2 = 0; + + if (gpio >= MSP_NUM_GPIOS) + return MSP_GPIO_NONE; + + if (gpio < 16) { + pinhi_mask = BASIC_DATA_MASK(gpio); + } else { + /* + * Two cases are possible with the EXTENDED register: + * - In output mode (ENABLED flag set), check the CLR bit + * - In input mode (ENABLED flag not set), check the SET bit + */ + pinhi_mask = EXTENDED_ENABLE(gpio) | EXTENDED_CLR(gpio); + pinhi_mask2 = EXTENDED_SET(gpio); + } + if (((*MSP_GPIO_DATA_REGISTER[gpio] & pinhi_mask) == pinhi_mask) || + (*MSP_GPIO_DATA_REGISTER[gpio] & pinhi_mask2)) + return MSP_GPIO_HI; + else + return MSP_GPIO_LO; +} + +/* Sets the specified pin to the specified value */ +static inline void msp_gpio_pin_set(enum msp_gpio_data data, unsigned int gpio) +{ + if (gpio >= MSP_NUM_GPIOS) + return; + + if (gpio < 16) { + if (data == MSP_GPIO_TOGGLE) + toggle_reg32(MSP_GPIO_DATA_REGISTER[gpio], + BASIC_DATA_MASK(gpio)); + else if (data == MSP_GPIO_HI) + set_reg32(MSP_GPIO_DATA_REGISTER[gpio], + BASIC_DATA_MASK(gpio)); + else + clear_reg32(MSP_GPIO_DATA_REGISTER[gpio], + BASIC_DATA_MASK(gpio)); + } else { + if (data == MSP_GPIO_TOGGLE) { + /* Special ugly case: + * We have to read the CLR bit. + * If set, we write the CLR bit. + * If not, we write the SET bit. + */ + u32 tmpdata; + + custom_read_reg32(MSP_GPIO_DATA_REGISTER[gpio], + tmpdata); + if (tmpdata & EXTENDED_CLR(gpio)) + tmpdata = EXTENDED_CLR(gpio); + else + tmpdata = EXTENDED_SET(gpio); + custom_write_reg32(MSP_GPIO_DATA_REGISTER[gpio], + tmpdata); + } else { + u32 newdata; + + if (data == MSP_GPIO_HI) + newdata = EXTENDED_SET(gpio); + else + newdata = EXTENDED_CLR(gpio); + set_value_reg32(MSP_GPIO_DATA_REGISTER[gpio], + EXTENDED_FULL_MASK, newdata); + } + } +} + +/* Sets the specified pin to the specified value */ +static inline void msp_gpio_pin_hi(unsigned int gpio) +{ + msp_gpio_pin_set(MSP_GPIO_HI, gpio); +} + +/* Sets the specified pin to the specified value */ +static inline void msp_gpio_pin_lo(unsigned int gpio) +{ + msp_gpio_pin_set(MSP_GPIO_LO, gpio); +} + +/* Sets the specified pin to the opposite value */ +static inline void msp_gpio_pin_toggle(unsigned int gpio) +{ + msp_gpio_pin_set(MSP_GPIO_TOGGLE, gpio); +} + +/* Gets the mode of the specified pin */ +static inline enum msp_gpio_mode msp_gpio_pin_get_mode(unsigned int gpio) +{ + enum msp_gpio_mode retval = MSP_GPIO_UNKNOWN; + uint32_t data; + + if (gpio >= MSP_NUM_GPIOS) + return retval; + + data = *MSP_GPIO_MODE_REGISTER[gpio]; + + if (gpio < 16) { + retval = BASIC_MODE_FROM_REG(data, gpio); + } else { + /* Extended pins can only be either INPUT or OUTPUT */ + if (data & EXTENDED_ENABLE(gpio)) + retval = MSP_GPIO_OUTPUT; + else + retval = MSP_GPIO_INPUT; + } + + return retval; +} + +/* + * Sets the specified mode on the requested pin + * Returns 0 on success, or -1 if that mode is not allowed on this pin + */ +static inline int msp_gpio_pin_mode(enum msp_gpio_mode mode, unsigned int gpio) +{ + u32 modemask, newmode; + + if ((1 << gpio) & ~MSP_GPIO_MODE_ALLOWED[mode]) + return -1; + + if (gpio >= MSP_NUM_GPIOS) + return -1; + + if (gpio < 16) { + modemask = BASIC_MODE_MASK(gpio); + newmode = BASIC_MODE(mode, gpio); + } else { + modemask = EXTENDED_FULL_MASK; + if (mode == MSP_GPIO_INPUT) + newmode = EXTENDED_DISABLE(gpio); + else + newmode = EXTENDED_ENABLE(gpio); + } + /* Do the set atomically */ + set_value_reg32(MSP_GPIO_MODE_REGISTER[gpio], modemask, newmode); + + return 0; +} + +#endif /* __MSP_GPIO_MACROS_H__ */ diff --git a/arch/mips/pmc-sierra/Kconfig b/arch/mips/pmc-sierra/Kconfig index c437b8a8ab8c..bbd76082fa8c 100644 --- a/arch/mips/pmc-sierra/Kconfig +++ b/arch/mips/pmc-sierra/Kconfig @@ -24,6 +24,7 @@ config PMC_MSP7120_GW select IRQ_MSP_CIC select HW_HAS_PCI select MSP_HAS_USB + select MSP_ETH config PMC_MSP7120_FPGA bool "PMC-Sierra MSP7120 FPGA" @@ -40,3 +41,12 @@ config HYPERTRANSPORT config MSP_HAS_USB boolean depends on PMC_MSP + +config MSP_ETH + boolean + select MSP_HAS_MAC + depends on PMC_MSP + +config MSP_HAS_MAC + boolean + depends on PMC_MSP diff --git a/arch/mips/pmc-sierra/msp71xx/Makefile b/arch/mips/pmc-sierra/msp71xx/Makefile index f26cab349c38..cefba7733b73 100644 --- a/arch/mips/pmc-sierra/msp71xx/Makefile +++ b/arch/mips/pmc-sierra/msp71xx/Makefile @@ -8,7 +8,7 @@ obj-$(CONFIG_PMC_MSP7120_GW) += msp_hwbutton.o obj-$(CONFIG_IRQ_MSP_SLP) += msp_irq_slp.o obj-$(CONFIG_IRQ_MSP_CIC) += msp_irq_cic.o msp_irq_per.o obj-$(CONFIG_PCI) += msp_pci.o -obj-$(CONFIG_MSPETH) += msp_eth.o +obj-$(CONFIG_MSP_HAS_MAC) += msp_eth.o obj-$(CONFIG_MSP_HAS_USB) += msp_usb.o obj-$(CONFIG_MIPS_MT_SMP) += msp_smp.o obj-$(CONFIG_MIPS_MT_SMTC) += msp_smtc.o diff --git a/arch/mips/pmc-sierra/msp71xx/msp_eth.c b/arch/mips/pmc-sierra/msp71xx/msp_eth.c new file mode 100644 index 000000000000..c584df393de2 --- /dev/null +++ b/arch/mips/pmc-sierra/msp71xx/msp_eth.c @@ -0,0 +1,187 @@ +/* + * The setup file for ethernet related hardware on PMC-Sierra MSP processors. + * + * Copyright 2010 PMC-Sierra, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/ioport.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <msp_regs.h> +#include <msp_int.h> +#include <msp_gpio_macros.h> + + +#define MSP_ETHERNET_GPIO0 14 +#define MSP_ETHERNET_GPIO1 15 +#define MSP_ETHERNET_GPIO2 16 + +#ifdef CONFIG_MSP_HAS_TSMAC +#define MSP_TSMAC_SIZE 0x10020 +#define MSP_TSMAC_ID "pmc_tsmac" + +static struct resource msp_tsmac0_resources[] = { + [0] = { + .start = MSP_MAC0_BASE, + .end = MSP_MAC0_BASE + MSP_TSMAC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = MSP_INT_MAC0, + .end = MSP_INT_MAC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource msp_tsmac1_resources[] = { + [0] = { + .start = MSP_MAC1_BASE, + .end = MSP_MAC1_BASE + MSP_TSMAC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = MSP_INT_MAC1, + .end = MSP_INT_MAC1, + .flags = IORESOURCE_IRQ, + }, +}; +static struct resource msp_tsmac2_resources[] = { + [0] = { + .start = MSP_MAC2_BASE, + .end = MSP_MAC2_BASE + MSP_TSMAC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = MSP_INT_SAR, + .end = MSP_INT_SAR, + .flags = IORESOURCE_IRQ, + }, +}; + + +static struct platform_device tsmac_device[] = { + [0] = { + .name = MSP_TSMAC_ID, + .id = 0, + .num_resources = ARRAY_SIZE(msp_tsmac0_resources), + .resource = msp_tsmac0_resources, + }, + [1] = { + .name = MSP_TSMAC_ID, + .id = 1, + .num_resources = ARRAY_SIZE(msp_tsmac1_resources), + .resource = msp_tsmac1_resources, + }, + [2] = { + .name = MSP_TSMAC_ID, + .id = 2, + .num_resources = ARRAY_SIZE(msp_tsmac2_resources), + .resource = msp_tsmac2_resources, + }, +}; +#define msp_eth_devs tsmac_device + +#else +/* If it is not TSMAC assume MSP_ETH (100Mbps) */ +#define MSP_ETH_ID "pmc_mspeth" +#define MSP_ETH_SIZE 0xE0 +static struct resource msp_eth0_resources[] = { + [0] = { + .start = MSP_MAC0_BASE, + .end = MSP_MAC0_BASE + MSP_ETH_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = MSP_INT_MAC0, + .end = MSP_INT_MAC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource msp_eth1_resources[] = { + [0] = { + .start = MSP_MAC1_BASE, + .end = MSP_MAC1_BASE + MSP_ETH_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = MSP_INT_MAC1, + .end = MSP_INT_MAC1, + .flags = IORESOURCE_IRQ, + }, +}; + + + +static struct platform_device mspeth_device[] = { + [0] = { + .name = MSP_ETH_ID, + .id = 0, + .num_resources = ARRAY_SIZE(msp_eth0_resources), + .resource = msp_eth0_resources, + }, + [1] = { + .name = MSP_ETH_ID, + .id = 1, + .num_resources = ARRAY_SIZE(msp_eth1_resources), + .resource = msp_eth1_resources, + }, + +}; +#define msp_eth_devs mspeth_device + +#endif +int __init msp_eth_setup(void) +{ + int i, ret = 0; + + /* Configure the GPIO and take the ethernet PHY out of reset */ + msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO0); + msp_gpio_pin_hi(MSP_ETHERNET_GPIO0); + +#ifdef CONFIG_MSP_HAS_TSMAC + /* 3 phys on boards with TSMAC */ + msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO1); + msp_gpio_pin_hi(MSP_ETHERNET_GPIO1); + + msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO2); + msp_gpio_pin_hi(MSP_ETHERNET_GPIO2); +#endif + for (i = 0; i < ARRAY_SIZE(msp_eth_devs); i++) { + ret = platform_device_register(&msp_eth_devs[i]); + printk(KERN_INFO "device: %d, return value = %d\n", i, ret); + if (ret) { + platform_device_unregister(&msp_eth_devs[i]); + break; + } + } + + if (ret) + printk(KERN_WARNING "Could not initialize " + "MSPETH device structures.\n"); + + return ret; +} +subsys_initcall(msp_eth_setup); -- cgit v1.2.3 From 786a5e02802a02c6e0bd132f4fc188a5854ab41f Mon Sep 17 00:00:00 2001 From: Anoop P A <anoop.pa@gmail.com> Date: Tue, 25 Jan 2011 13:53:17 +0530 Subject: MIPS: MSP71xx: Add CPU feature override file. Signed-off-by: Anoop P A <anoop.pa@gmail.com> To: linux-mips@linux-mips.org To: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/2045/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- .../asm/pmc-sierra/msp71xx/cpu-feature-overrides.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 arch/mips/include/asm/pmc-sierra/msp71xx/cpu-feature-overrides.h diff --git a/arch/mips/include/asm/pmc-sierra/msp71xx/cpu-feature-overrides.h b/arch/mips/include/asm/pmc-sierra/msp71xx/cpu-feature-overrides.h new file mode 100644 index 000000000000..a80801b094bd --- /dev/null +++ b/arch/mips/include/asm/pmc-sierra/msp71xx/cpu-feature-overrides.h @@ -0,0 +1,21 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2003, 04, 07 Ralf Baechle (ralf@linux-mips.org) + */ +#ifndef __ASM_MACH_MSP71XX_CPU_FEATURE_OVERRIDES_H +#define __ASM_MACH_MSP71XX_CPU_FEATURE_OVERRIDES_H + +#define cpu_has_mips16 1 +#define cpu_has_dsp 1 +#define cpu_has_mipsmt 1 +#define cpu_has_fpu 0 + +#define cpu_has_mips32r1 0 +#define cpu_has_mips32r2 1 +#define cpu_has_mips64r1 0 +#define cpu_has_mips64r2 0 + +#endif /* __ASM_MACH_MSP71XX_CPU_FEATURE_OVERRIDES_H */ -- cgit v1.2.3 From d24c1a26ca952264d92ccf6acafe38912e05b1f8 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:44 +0000 Subject: MIPS: Alchemy: Convert to new irq chip functions Fix the deadlock in set_type() while at it: The code called set_irq_chip_and_handler_name() resp. set_irq_chip() from the set_type() callback. That only works on UP and lock debugging disabled. Otherwise it would dead lock on desc->lock. __irq_set_chip_handler_name_locked() avoids that. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2173/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/alchemy/common/irq.c | 98 +++++++++++++++++++------------------- arch/mips/alchemy/devboards/bcsr.c | 18 +++---- 2 files changed, 59 insertions(+), 57 deletions(-) diff --git a/arch/mips/alchemy/common/irq.c b/arch/mips/alchemy/common/irq.c index 9f78ada83b3c..55dd7c888517 100644 --- a/arch/mips/alchemy/common/irq.c +++ b/arch/mips/alchemy/common/irq.c @@ -39,7 +39,7 @@ #include <asm/mach-pb1x00/pb1000.h> #endif -static int au1x_ic_settype(unsigned int irq, unsigned int flow_type); +static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type); /* NOTE on interrupt priorities: The original writers of this code said: * @@ -218,17 +218,17 @@ struct au1xxx_irqmap au1200_irqmap[] __initdata = { }; -static void au1x_ic0_unmask(unsigned int irq_nr) +static void au1x_ic0_unmask(struct irq_data *d) { - unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + unsigned int bit = d->irq - AU1000_INTC0_INT_BASE; au_writel(1 << bit, IC0_MASKSET); au_writel(1 << bit, IC0_WAKESET); au_sync(); } -static void au1x_ic1_unmask(unsigned int irq_nr) +static void au1x_ic1_unmask(struct irq_data *d) { - unsigned int bit = irq_nr - AU1000_INTC1_INT_BASE; + unsigned int bit = d->irq - AU1000_INTC1_INT_BASE; au_writel(1 << bit, IC1_MASKSET); au_writel(1 << bit, IC1_WAKESET); @@ -236,31 +236,31 @@ static void au1x_ic1_unmask(unsigned int irq_nr) * nowhere in the current kernel sources is it disabled. --mlau */ #if defined(CONFIG_MIPS_PB1000) - if (irq_nr == AU1000_GPIO15_INT) + if (d->irq == AU1000_GPIO15_INT) au_writel(0x4000, PB1000_MDR); /* enable int */ #endif au_sync(); } -static void au1x_ic0_mask(unsigned int irq_nr) +static void au1x_ic0_mask(struct irq_data *d) { - unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + unsigned int bit = d->irq - AU1000_INTC0_INT_BASE; au_writel(1 << bit, IC0_MASKCLR); au_writel(1 << bit, IC0_WAKECLR); au_sync(); } -static void au1x_ic1_mask(unsigned int irq_nr) +static void au1x_ic1_mask(struct irq_data *d) { - unsigned int bit = irq_nr - AU1000_INTC1_INT_BASE; + unsigned int bit = d->irq - AU1000_INTC1_INT_BASE; au_writel(1 << bit, IC1_MASKCLR); au_writel(1 << bit, IC1_WAKECLR); au_sync(); } -static void au1x_ic0_ack(unsigned int irq_nr) +static void au1x_ic0_ack(struct irq_data *d) { - unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + unsigned int bit = d->irq - AU1000_INTC0_INT_BASE; /* * This may assume that we don't get interrupts from @@ -271,9 +271,9 @@ static void au1x_ic0_ack(unsigned int irq_nr) au_sync(); } -static void au1x_ic1_ack(unsigned int irq_nr) +static void au1x_ic1_ack(struct irq_data *d) { - unsigned int bit = irq_nr - AU1000_INTC1_INT_BASE; + unsigned int bit = d->irq - AU1000_INTC1_INT_BASE; /* * This may assume that we don't get interrupts from @@ -284,9 +284,9 @@ static void au1x_ic1_ack(unsigned int irq_nr) au_sync(); } -static void au1x_ic0_maskack(unsigned int irq_nr) +static void au1x_ic0_maskack(struct irq_data *d) { - unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + unsigned int bit = d->irq - AU1000_INTC0_INT_BASE; au_writel(1 << bit, IC0_WAKECLR); au_writel(1 << bit, IC0_MASKCLR); @@ -295,9 +295,9 @@ static void au1x_ic0_maskack(unsigned int irq_nr) au_sync(); } -static void au1x_ic1_maskack(unsigned int irq_nr) +static void au1x_ic1_maskack(struct irq_data *d) { - unsigned int bit = irq_nr - AU1000_INTC1_INT_BASE; + unsigned int bit = d->irq - AU1000_INTC1_INT_BASE; au_writel(1 << bit, IC1_WAKECLR); au_writel(1 << bit, IC1_MASKCLR); @@ -306,9 +306,9 @@ static void au1x_ic1_maskack(unsigned int irq_nr) au_sync(); } -static int au1x_ic1_setwake(unsigned int irq, unsigned int on) +static int au1x_ic1_setwake(struct irq_data *d, unsigned int on) { - int bit = irq - AU1000_INTC1_INT_BASE; + int bit = d->irq - AU1000_INTC1_INT_BASE; unsigned long wakemsk, flags; /* only GPIO 0-7 can act as wakeup source. Fortunately these @@ -336,28 +336,30 @@ static int au1x_ic1_setwake(unsigned int irq, unsigned int on) */ static struct irq_chip au1x_ic0_chip = { .name = "Alchemy-IC0", - .ack = au1x_ic0_ack, - .mask = au1x_ic0_mask, - .mask_ack = au1x_ic0_maskack, - .unmask = au1x_ic0_unmask, - .set_type = au1x_ic_settype, + .irq_ack = au1x_ic0_ack, + .irq_mask = au1x_ic0_mask, + .irq_mask_ack = au1x_ic0_maskack, + .irq_unmask = au1x_ic0_unmask, + .irq_set_type = au1x_ic_settype, }; static struct irq_chip au1x_ic1_chip = { .name = "Alchemy-IC1", - .ack = au1x_ic1_ack, - .mask = au1x_ic1_mask, - .mask_ack = au1x_ic1_maskack, - .unmask = au1x_ic1_unmask, - .set_type = au1x_ic_settype, - .set_wake = au1x_ic1_setwake, + .irq_ack = au1x_ic1_ack, + .irq_mask = au1x_ic1_mask, + .irq_mask_ack = au1x_ic1_maskack, + .irq_unmask = au1x_ic1_unmask, + .irq_set_type = au1x_ic_settype, + .irq_set_wake = au1x_ic1_setwake, }; -static int au1x_ic_settype(unsigned int irq, unsigned int flow_type) +static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type) { struct irq_chip *chip; unsigned long icr[6]; - unsigned int bit, ic; + unsigned int bit, ic, irq = d->irq; + irq_flow_handler_t handler = NULL; + unsigned char *name = NULL; int ret; if (irq >= AU1000_INTC1_INT_BASE) { @@ -387,47 +389,47 @@ static int au1x_ic_settype(unsigned int irq, unsigned int flow_type) au_writel(1 << bit, icr[5]); au_writel(1 << bit, icr[4]); au_writel(1 << bit, icr[0]); - set_irq_chip_and_handler_name(irq, chip, - handle_edge_irq, "riseedge"); + handler = handle_edge_irq; + name = "riseedge"; break; case IRQ_TYPE_EDGE_FALLING: /* 0:1:0 */ au_writel(1 << bit, icr[5]); au_writel(1 << bit, icr[1]); au_writel(1 << bit, icr[3]); - set_irq_chip_and_handler_name(irq, chip, - handle_edge_irq, "falledge"); + handler = handle_edge_irq; + name = "falledge"; break; case IRQ_TYPE_EDGE_BOTH: /* 0:1:1 */ au_writel(1 << bit, icr[5]); au_writel(1 << bit, icr[1]); au_writel(1 << bit, icr[0]); - set_irq_chip_and_handler_name(irq, chip, - handle_edge_irq, "bothedge"); + handler = handle_edge_irq; + name = "bothedge"; break; case IRQ_TYPE_LEVEL_HIGH: /* 1:0:1 */ au_writel(1 << bit, icr[2]); au_writel(1 << bit, icr[4]); au_writel(1 << bit, icr[0]); - set_irq_chip_and_handler_name(irq, chip, - handle_level_irq, "hilevel"); + handler = handle_level_irq; + name = "hilevel"; break; case IRQ_TYPE_LEVEL_LOW: /* 1:1:0 */ au_writel(1 << bit, icr[2]); au_writel(1 << bit, icr[1]); au_writel(1 << bit, icr[3]); - set_irq_chip_and_handler_name(irq, chip, - handle_level_irq, "lowlevel"); + handler = handle_level_irq; + name = "lowlevel"; break; case IRQ_TYPE_NONE: /* 0:0:0 */ au_writel(1 << bit, icr[5]); au_writel(1 << bit, icr[4]); au_writel(1 << bit, icr[3]); - /* set at least chip so we can call set_irq_type() on it */ - set_irq_chip(irq, chip); break; default: ret = -EINVAL; } + __irq_set_chip_handler_name_locked(d->irq, chip, handler, name); + au_sync(); return ret; @@ -504,11 +506,11 @@ static void __init au1000_init_irq(struct au1xxx_irqmap *map) */ for (i = AU1000_INTC0_INT_BASE; (i < AU1000_INTC0_INT_BASE + 32); i++) - au1x_ic_settype(i, IRQ_TYPE_NONE); + au1x_ic_settype(irq_get_irq_data(i), IRQ_TYPE_NONE); for (i = AU1000_INTC1_INT_BASE; (i < AU1000_INTC1_INT_BASE + 32); i++) - au1x_ic_settype(i, IRQ_TYPE_NONE); + au1x_ic_settype(irq_get_irq_data(i), IRQ_TYPE_NONE); /* * Initialize IC0, which is fixed per processor. @@ -526,7 +528,7 @@ static void __init au1000_init_irq(struct au1xxx_irqmap *map) au_writel(1 << bit, IC0_ASSIGNSET); } - au1x_ic_settype(irq_nr, map->im_type); + au1x_ic_settype(irq_get_irq_data(irq_nr), map->im_type); ++map; } diff --git a/arch/mips/alchemy/devboards/bcsr.c b/arch/mips/alchemy/devboards/bcsr.c index c52af8821da0..f91c43a7d5dc 100644 --- a/arch/mips/alchemy/devboards/bcsr.c +++ b/arch/mips/alchemy/devboards/bcsr.c @@ -97,26 +97,26 @@ static void bcsr_csc_handler(unsigned int irq, struct irq_desc *d) * CPLD generates tons of spurious interrupts (at least on my DB1200). * -- mlau */ -static void bcsr_irq_mask(unsigned int irq_nr) +static void bcsr_irq_mask(struct irq_data *d) { - unsigned short v = 1 << (irq_nr - bcsr_csc_base); + unsigned short v = 1 << (d->irq - bcsr_csc_base); __raw_writew(v, bcsr_virt + BCSR_REG_INTCLR); __raw_writew(v, bcsr_virt + BCSR_REG_MASKCLR); wmb(); } -static void bcsr_irq_maskack(unsigned int irq_nr) +static void bcsr_irq_maskack(struct irq_data *d) { - unsigned short v = 1 << (irq_nr - bcsr_csc_base); + unsigned short v = 1 << (d->irq - bcsr_csc_base); __raw_writew(v, bcsr_virt + BCSR_REG_INTCLR); __raw_writew(v, bcsr_virt + BCSR_REG_MASKCLR); __raw_writew(v, bcsr_virt + BCSR_REG_INTSTAT); /* ack */ wmb(); } -static void bcsr_irq_unmask(unsigned int irq_nr) +static void bcsr_irq_unmask(struct irq_data *d) { - unsigned short v = 1 << (irq_nr - bcsr_csc_base); + unsigned short v = 1 << (d->irq - bcsr_csc_base); __raw_writew(v, bcsr_virt + BCSR_REG_INTSET); __raw_writew(v, bcsr_virt + BCSR_REG_MASKSET); wmb(); @@ -124,9 +124,9 @@ static void bcsr_irq_unmask(unsigned int irq_nr) static struct irq_chip bcsr_irq_type = { .name = "CPLD", - .mask = bcsr_irq_mask, - .mask_ack = bcsr_irq_maskack, - .unmask = bcsr_irq_unmask, + .irq_mask = bcsr_irq_mask, + .irq_mask_ack = bcsr_irq_maskack, + .irq_unmask = bcsr_irq_unmask, }; void __init bcsr_init_irq(int csc_start, int csc_end, int hook_irq) -- cgit v1.2.3 From 41d735e8705c5a2cffe64bc56624a4bb0519c1da Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:46 +0000 Subject: MIPS: AR7: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2174/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/ar7/irq.c | 42 +++++++++++++++++++++--------------------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/arch/mips/ar7/irq.c b/arch/mips/ar7/irq.c index 4ec2642c568f..a6484b60642f 100644 --- a/arch/mips/ar7/irq.c +++ b/arch/mips/ar7/irq.c @@ -49,51 +49,51 @@ static int ar7_irq_base; -static void ar7_unmask_irq(unsigned int irq) +static void ar7_unmask_irq(struct irq_data *d) { - writel(1 << ((irq - ar7_irq_base) % 32), - REG(ESR_OFFSET(irq - ar7_irq_base))); + writel(1 << ((d->irq - ar7_irq_base) % 32), + REG(ESR_OFFSET(d->irq - ar7_irq_base))); } -static void ar7_mask_irq(unsigned int irq) +static void ar7_mask_irq(struct irq_data *d) { - writel(1 << ((irq - ar7_irq_base) % 32), - REG(ECR_OFFSET(irq - ar7_irq_base))); + writel(1 << ((d->irq - ar7_irq_base) % 32), + REG(ECR_OFFSET(d->irq - ar7_irq_base))); } -static void ar7_ack_irq(unsigned int irq) +static void ar7_ack_irq(struct irq_data *d) { - writel(1 << ((irq - ar7_irq_base) % 32), - REG(CR_OFFSET(irq - ar7_irq_base))); + writel(1 << ((d->irq - ar7_irq_base) % 32), + REG(CR_OFFSET(d->irq - ar7_irq_base))); } -static void ar7_unmask_sec_irq(unsigned int irq) +static void ar7_unmask_sec_irq(struct irq_data *d) { - writel(1 << (irq - ar7_irq_base - 40), REG(SEC_ESR_OFFSET)); + writel(1 << (d->irq - ar7_irq_base - 40), REG(SEC_ESR_OFFSET)); } -static void ar7_mask_sec_irq(unsigned int irq) +static void ar7_mask_sec_irq(struct irq_data *d) { - writel(1 << (irq - ar7_irq_base - 40), REG(SEC_ECR_OFFSET)); + writel(1 << (d->irq - ar7_irq_base - 40), REG(SEC_ECR_OFFSET)); } -static void ar7_ack_sec_irq(unsigned int irq) +static void ar7_ack_sec_irq(struct irq_data *d) { - writel(1 << (irq - ar7_irq_base - 40), REG(SEC_CR_OFFSET)); + writel(1 << (d->irq - ar7_irq_base - 40), REG(SEC_CR_OFFSET)); } static struct irq_chip ar7_irq_type = { .name = "AR7", - .unmask = ar7_unmask_irq, - .mask = ar7_mask_irq, - .ack = ar7_ack_irq + .irq_unmask = ar7_unmask_irq, + .irq_mask = ar7_mask_irq, + .irq_ack = ar7_ack_irq }; static struct irq_chip ar7_sec_irq_type = { .name = "AR7", - .unmask = ar7_unmask_sec_irq, - .mask = ar7_mask_sec_irq, - .ack = ar7_ack_sec_irq, + .irq_unmask = ar7_unmask_sec_irq, + .irq_mask = ar7_mask_sec_irq, + .irq_ack = ar7_ack_sec_irq, }; static struct irqaction ar7_cascade_action = { -- cgit v1.2.3 From 3fb8818bd2ed2030f00678da090adff36739bf20 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:47 +0000 Subject: MIPS: ath79: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2175/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/ath79/irq.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c index 040762abdcd1..7c02bc948a31 100644 --- a/arch/mips/ath79/irq.c +++ b/arch/mips/ath79/irq.c @@ -62,13 +62,12 @@ static void ath79_misc_irq_handler(unsigned int irq, struct irq_desc *desc) spurious_interrupt(); } -static void ar71xx_misc_irq_unmask(unsigned int irq) +static void ar71xx_misc_irq_unmask(struct irq_data *d) { + unsigned int irq = d->irq - ATH79_MISC_IRQ_BASE; void __iomem *base = ath79_reset_base; u32 t; - irq -= ATH79_MISC_IRQ_BASE; - t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); __raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE); @@ -76,13 +75,12 @@ static void ar71xx_misc_irq_unmask(unsigned int irq) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); } -static void ar71xx_misc_irq_mask(unsigned int irq) +static void ar71xx_misc_irq_mask(struct irq_data *d) { + unsigned int irq = d->irq - ATH79_MISC_IRQ_BASE; void __iomem *base = ath79_reset_base; u32 t; - irq -= ATH79_MISC_IRQ_BASE; - t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE); @@ -90,13 +88,12 @@ static void ar71xx_misc_irq_mask(unsigned int irq) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); } -static void ar724x_misc_irq_ack(unsigned int irq) +static void ar724x_misc_irq_ack(struct irq_data *d) { + unsigned int irq = d->irq - ATH79_MISC_IRQ_BASE; void __iomem *base = ath79_reset_base; u32 t; - irq -= ATH79_MISC_IRQ_BASE; - t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS); __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_STATUS); @@ -106,8 +103,8 @@ static void ar724x_misc_irq_ack(unsigned int irq) static struct irq_chip ath79_misc_irq_chip = { .name = "MISC", - .unmask = ar71xx_misc_irq_unmask, - .mask = ar71xx_misc_irq_mask, + .irq_unmask = ar71xx_misc_irq_unmask, + .irq_mask = ar71xx_misc_irq_mask, }; static void __init ath79_misc_irq_init(void) @@ -119,9 +116,9 @@ static void __init ath79_misc_irq_init(void) __raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_STATUS); if (soc_is_ar71xx() || soc_is_ar913x()) - ath79_misc_irq_chip.mask_ack = ar71xx_misc_irq_mask; + ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask; else if (soc_is_ar724x()) - ath79_misc_irq_chip.ack = ar724x_misc_irq_ack; + ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack; else BUG(); -- cgit v1.2.3 From 93f293610446f10fd13de9f18b4d0300f0d89279 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:47 +0000 Subject: MIPS: bcm63xx: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2176/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/bcm63xx/irq.c | 77 ++++++++++++++++++++----------------------------- 1 file changed, 32 insertions(+), 45 deletions(-) diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c index 3be87f2422f0..1691531aa34d 100644 --- a/arch/mips/bcm63xx/irq.c +++ b/arch/mips/bcm63xx/irq.c @@ -76,88 +76,80 @@ asmlinkage void plat_irq_dispatch(void) * internal IRQs operations: only mask/unmask on PERF irq mask * register. */ -static inline void bcm63xx_internal_irq_mask(unsigned int irq) +static inline void bcm63xx_internal_irq_mask(struct irq_data *d) { + unsigned int irq = d->irq - IRQ_INTERNAL_BASE; u32 mask; - irq -= IRQ_INTERNAL_BASE; mask = bcm_perf_readl(PERF_IRQMASK_REG); mask &= ~(1 << irq); bcm_perf_writel(mask, PERF_IRQMASK_REG); } -static void bcm63xx_internal_irq_unmask(unsigned int irq) +static void bcm63xx_internal_irq_unmask(struct irq_data *d) { + unsigned int irq = d->irq - IRQ_INTERNAL_BASE; u32 mask; - irq -= IRQ_INTERNAL_BASE; mask = bcm_perf_readl(PERF_IRQMASK_REG); mask |= (1 << irq); bcm_perf_writel(mask, PERF_IRQMASK_REG); } -static unsigned int bcm63xx_internal_irq_startup(unsigned int irq) -{ - bcm63xx_internal_irq_unmask(irq); - return 0; -} - /* * external IRQs operations: mask/unmask and clear on PERF external * irq control register. */ -static void bcm63xx_external_irq_mask(unsigned int irq) +static void bcm63xx_external_irq_mask(struct irq_data *d) { + unsigned int irq = d->irq - IRQ_EXT_BASE; u32 reg; - irq -= IRQ_EXT_BASE; reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG); reg &= ~EXTIRQ_CFG_MASK(irq); bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); } -static void bcm63xx_external_irq_unmask(unsigned int irq) +static void bcm63xx_external_irq_unmask(struct irq_data *d) { + unsigned int irq = d->irq - IRQ_EXT_BASE; u32 reg; - irq -= IRQ_EXT_BASE; reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG); reg |= EXTIRQ_CFG_MASK(irq); bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); } -static void bcm63xx_external_irq_clear(unsigned int irq) +static void bcm63xx_external_irq_clear(struct irq_data *d) { + unsigned int irq = d->irq - IRQ_EXT_BASE; u32 reg; - irq -= IRQ_EXT_BASE; reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG); reg |= EXTIRQ_CFG_CLEAR(irq); bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); } -static unsigned int bcm63xx_external_irq_startup(unsigned int irq) +static unsigned int bcm63xx_external_irq_startup(struct irq_data *d) { - set_c0_status(0x100 << (irq - IRQ_MIPS_BASE)); + set_c0_status(0x100 << (d->irq - IRQ_MIPS_BASE)); irq_enable_hazard(); - bcm63xx_external_irq_unmask(irq); + bcm63xx_external_irq_unmask(d); return 0; } -static void bcm63xx_external_irq_shutdown(unsigned int irq) +static void bcm63xx_external_irq_shutdown(struct irq_data *d) { - bcm63xx_external_irq_mask(irq); - clear_c0_status(0x100 << (irq - IRQ_MIPS_BASE)); + bcm63xx_external_irq_mask(d); + clear_c0_status(0x100 << (d->irq - IRQ_MIPS_BASE)); irq_disable_hazard(); } -static int bcm63xx_external_irq_set_type(unsigned int irq, +static int bcm63xx_external_irq_set_type(struct irq_data *d, unsigned int flow_type) { + unsigned int irq = d->irq - IRQ_EXT_BASE; u32 reg; - struct irq_desc *desc = irq_desc + irq; - - irq -= IRQ_EXT_BASE; flow_type &= IRQ_TYPE_SENSE_MASK; @@ -199,37 +191,32 @@ static int bcm63xx_external_irq_set_type(unsigned int irq, } bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); - if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) { - desc->status |= IRQ_LEVEL; - desc->handle_irq = handle_level_irq; - } else { - desc->handle_irq = handle_edge_irq; - } + irqd_set_trigger_type(d, flow_type); + if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) + __irq_set_handler_locked(d->irq, handle_level_irq); + else + __irq_set_handler_locked(d->irq, handle_edge_irq); - return 0; + return IRQ_SET_MASK_OK_NOCOPY; } static struct irq_chip bcm63xx_internal_irq_chip = { .name = "bcm63xx_ipic", - .startup = bcm63xx_internal_irq_startup, - .shutdown = bcm63xx_internal_irq_mask, - - .mask = bcm63xx_internal_irq_mask, - .mask_ack = bcm63xx_internal_irq_mask, - .unmask = bcm63xx_internal_irq_unmask, + .irq_mask = bcm63xx_internal_irq_mask, + .irq_unmask = bcm63xx_internal_irq_unmask, }; static struct irq_chip bcm63xx_external_irq_chip = { .name = "bcm63xx_epic", - .startup = bcm63xx_external_irq_startup, - .shutdown = bcm63xx_external_irq_shutdown, + .irq_startup = bcm63xx_external_irq_startup, + .irq_shutdown = bcm63xx_external_irq_shutdown, - .ack = bcm63xx_external_irq_clear, + .irq_ack = bcm63xx_external_irq_clear, - .mask = bcm63xx_external_irq_mask, - .unmask = bcm63xx_external_irq_unmask, + .irq_mask = bcm63xx_external_irq_mask, + .irq_unmask = bcm63xx_external_irq_unmask, - .set_type = bcm63xx_external_irq_set_type, + .irq_set_type = bcm63xx_external_irq_set_type, }; static struct irqaction cpu_ip2_cascade_action = { -- cgit v1.2.3 From 009c200a66a27c34c92ad02ac8c9758e6d0e34e3 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:51 +0000 Subject: MIPS: DEC: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2178/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/dec/ioasic-irq.c | 60 +++++++++++----------------------------------- arch/mips/dec/kn02-irq.c | 23 ++++++++---------- 2 files changed, 24 insertions(+), 59 deletions(-) diff --git a/arch/mips/dec/ioasic-irq.c b/arch/mips/dec/ioasic-irq.c index cb41954fc321..8d9a5fc607e4 100644 --- a/arch/mips/dec/ioasic-irq.c +++ b/arch/mips/dec/ioasic-irq.c @@ -17,80 +17,48 @@ #include <asm/dec/ioasic_addrs.h> #include <asm/dec/ioasic_ints.h> - static int ioasic_irq_base; - -static inline void unmask_ioasic_irq(unsigned int irq) +static void unmask_ioasic_irq(struct irq_data *d) { u32 simr; simr = ioasic_read(IO_REG_SIMR); - simr |= (1 << (irq - ioasic_irq_base)); + simr |= (1 << (d->irq - ioasic_irq_base)); ioasic_write(IO_REG_SIMR, simr); } -static inline void mask_ioasic_irq(unsigned int irq) +static void mask_ioasic_irq(struct irq_data *d) { u32 simr; simr = ioasic_read(IO_REG_SIMR); - simr &= ~(1 << (irq - ioasic_irq_base)); + simr &= ~(1 << (d->irq - ioasic_irq_base)); ioasic_write(IO_REG_SIMR, simr); } -static inline void clear_ioasic_irq(unsigned int irq) +static void ack_ioasic_irq(struct irq_data *d) { - u32 sir; - - sir = ~(1 << (irq - ioasic_irq_base)); - ioasic_write(IO_REG_SIR, sir); -} - -static inline void ack_ioasic_irq(unsigned int irq) -{ - mask_ioasic_irq(irq); + mask_ioasic_irq(d); fast_iob(); } -static inline void end_ioasic_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) - unmask_ioasic_irq(irq); -} - static struct irq_chip ioasic_irq_type = { .name = "IO-ASIC", - .ack = ack_ioasic_irq, - .mask = mask_ioasic_irq, - .mask_ack = ack_ioasic_irq, - .unmask = unmask_ioasic_irq, + .irq_ack = ack_ioasic_irq, + .irq_mask = mask_ioasic_irq, + .irq_mask_ack = ack_ioasic_irq, + .irq_unmask = unmask_ioasic_irq, }; - -#define unmask_ioasic_dma_irq unmask_ioasic_irq - -#define mask_ioasic_dma_irq mask_ioasic_irq - -#define ack_ioasic_dma_irq ack_ioasic_irq - -static inline void end_ioasic_dma_irq(unsigned int irq) -{ - clear_ioasic_irq(irq); - fast_iob(); - end_ioasic_irq(irq); -} - static struct irq_chip ioasic_dma_irq_type = { .name = "IO-ASIC-DMA", - .ack = ack_ioasic_dma_irq, - .mask = mask_ioasic_dma_irq, - .mask_ack = ack_ioasic_dma_irq, - .unmask = unmask_ioasic_dma_irq, - .end = end_ioasic_dma_irq, + .irq_ack = ack_ioasic_irq, + .irq_mask = mask_ioasic_irq, + .irq_mask_ack = ack_ioasic_irq, + .irq_unmask = unmask_ioasic_irq, }; - void __init init_ioasic_irqs(int base) { int i; diff --git a/arch/mips/dec/kn02-irq.c b/arch/mips/dec/kn02-irq.c index ed90a8deabcc..ef31d98c4fb8 100644 --- a/arch/mips/dec/kn02-irq.c +++ b/arch/mips/dec/kn02-irq.c @@ -27,43 +27,40 @@ */ u32 cached_kn02_csr; - static int kn02_irq_base; - -static inline void unmask_kn02_irq(unsigned int irq) +static void unmask_kn02_irq(struct irq_data *d) { volatile u32 *csr = (volatile u32 *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CSR); - cached_kn02_csr |= (1 << (irq - kn02_irq_base + 16)); + cached_kn02_csr |= (1 << (d->irq - kn02_irq_base + 16)); *csr = cached_kn02_csr; } -static inline void mask_kn02_irq(unsigned int irq) +static void mask_kn02_irq(struct irq_data *d) { volatile u32 *csr = (volatile u32 *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CSR); - cached_kn02_csr &= ~(1 << (irq - kn02_irq_base + 16)); + cached_kn02_csr &= ~(1 << (d->irq - kn02_irq_base + 16)); *csr = cached_kn02_csr; } -static void ack_kn02_irq(unsigned int irq) +static void ack_kn02_irq(struct irq_data *d) { - mask_kn02_irq(irq); + mask_kn02_irq(d); iob(); } static struct irq_chip kn02_irq_type = { .name = "KN02-CSR", - .ack = ack_kn02_irq, - .mask = mask_kn02_irq, - .mask_ack = ack_kn02_irq, - .unmask = unmask_kn02_irq, + .irq_ack = ack_kn02_irq, + .irq_mask = mask_kn02_irq, + .irq_mask_ack = ack_kn02_irq, + .irq_unmask = unmask_kn02_irq, }; - void __init init_kn02_irqs(int base) { volatile u32 *csr = (volatile u32 *)CKSEG1ADDR(KN02_SLOT_BASE + -- cgit v1.2.3 From 90a568f7bb9eab60958d47903f4c655cd9935148 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:51 +0000 Subject: MIPS: EMMA: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2179/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/emma/markeins/irq.c | 67 +++++++++++++++++-------------------------- 1 file changed, 27 insertions(+), 40 deletions(-) diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c index 3a96799eb65f..9b1207ae2256 100644 --- a/arch/mips/emma/markeins/irq.c +++ b/arch/mips/emma/markeins/irq.c @@ -34,13 +34,10 @@ #include <asm/emma/emma2rh.h> -static void emma2rh_irq_enable(unsigned int irq) +static void emma2rh_irq_enable(struct irq_data *d) { - u32 reg_value; - u32 reg_bitmask; - u32 reg_index; - - irq -= EMMA2RH_IRQ_BASE; + unsigned int irq = d->irq - EMMA2RH_IRQ_BASE; + u32 reg_value, reg_bitmask, reg_index; reg_index = EMMA2RH_BHIF_INT_EN_0 + (EMMA2RH_BHIF_INT_EN_1 - EMMA2RH_BHIF_INT_EN_0) * (irq / 32); @@ -49,13 +46,10 @@ static void emma2rh_irq_enable(unsigned int irq) emma2rh_out32(reg_index, reg_value | reg_bitmask); } -static void emma2rh_irq_disable(unsigned int irq) +static void emma2rh_irq_disable(struct irq_data *d) { - u32 reg_value; - u32 reg_bitmask; - u32 reg_index; - - irq -= EMMA2RH_IRQ_BASE; + unsigned int irq = d->irq - EMMA2RH_IRQ_BASE; + u32 reg_value, reg_bitmask, reg_index; reg_index = EMMA2RH_BHIF_INT_EN_0 + (EMMA2RH_BHIF_INT_EN_1 - EMMA2RH_BHIF_INT_EN_0) * (irq / 32); @@ -66,10 +60,8 @@ static void emma2rh_irq_disable(unsigned int irq) struct irq_chip emma2rh_irq_controller = { .name = "emma2rh_irq", - .ack = emma2rh_irq_disable, - .mask = emma2rh_irq_disable, - .mask_ack = emma2rh_irq_disable, - .unmask = emma2rh_irq_enable, + .irq_mask = emma2rh_irq_disable, + .irq_unmask = emma2rh_irq_enable, }; void emma2rh_irq_init(void) @@ -82,23 +74,21 @@ void emma2rh_irq_init(void) handle_level_irq, "level"); } -static void emma2rh_sw_irq_enable(unsigned int irq) +static void emma2rh_sw_irq_enable(struct irq_data *d) { + unsigned int irq = d->irq - EMMA2RH_SW_IRQ_BASE; u32 reg; - irq -= EMMA2RH_SW_IRQ_BASE; - reg = emma2rh_in32(EMMA2RH_BHIF_SW_INT_EN); reg |= 1 << irq; emma2rh_out32(EMMA2RH_BHIF_SW_INT_EN, reg); } -static void emma2rh_sw_irq_disable(unsigned int irq) +static void emma2rh_sw_irq_disable(struct irq_data *d) { + unsigned int irq = d->irq - EMMA2RH_SW_IRQ_BASE; u32 reg; - irq -= EMMA2RH_SW_IRQ_BASE; - reg = emma2rh_in32(EMMA2RH_BHIF_SW_INT_EN); reg &= ~(1 << irq); emma2rh_out32(EMMA2RH_BHIF_SW_INT_EN, reg); @@ -106,10 +96,8 @@ static void emma2rh_sw_irq_disable(unsigned int irq) struct irq_chip emma2rh_sw_irq_controller = { .name = "emma2rh_sw_irq", - .ack = emma2rh_sw_irq_disable, - .mask = emma2rh_sw_irq_disable, - .mask_ack = emma2rh_sw_irq_disable, - .unmask = emma2rh_sw_irq_enable, + .irq_mask = emma2rh_sw_irq_disable, + .irq_unmask = emma2rh_sw_irq_enable, }; void emma2rh_sw_irq_init(void) @@ -122,39 +110,38 @@ void emma2rh_sw_irq_init(void) handle_level_irq, "level"); } -static void emma2rh_gpio_irq_enable(unsigned int irq) +static void emma2rh_gpio_irq_enable(struct irq_data *d) { + unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE; u32 reg; - irq -= EMMA2RH_GPIO_IRQ_BASE; - reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK); reg |= 1 << irq; emma2rh_out32(EMMA2RH_GPIO_INT_MASK, reg); } -static void emma2rh_gpio_irq_disable(unsigned int irq) +static void emma2rh_gpio_irq_disable(struct irq_data *d) { + unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE; u32 reg; - irq -= EMMA2RH_GPIO_IRQ_BASE; - reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK); reg &= ~(1 << irq); emma2rh_out32(EMMA2RH_GPIO_INT_MASK, reg); } -static void emma2rh_gpio_irq_ack(unsigned int irq) +static void emma2rh_gpio_irq_ack(struct irq_data *d) { - irq -= EMMA2RH_GPIO_IRQ_BASE; + unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE; + emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~(1 << irq)); } -static void emma2rh_gpio_irq_mask_ack(unsigned int irq) +static void emma2rh_gpio_irq_mask_ack(struct irq_data *d) { + unsigned int irq = d->irq - EMMA2RH_GPIO_IRQ_BASE; u32 reg; - irq -= EMMA2RH_GPIO_IRQ_BASE; emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~(1 << irq)); reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK); @@ -164,10 +151,10 @@ static void emma2rh_gpio_irq_mask_ack(unsigned int irq) struct irq_chip emma2rh_gpio_irq_controller = { .name = "emma2rh_gpio_irq", - .ack = emma2rh_gpio_irq_ack, - .mask = emma2rh_gpio_irq_disable, - .mask_ack = emma2rh_gpio_irq_mask_ack, - .unmask = emma2rh_gpio_irq_enable, + .irq_ack = emma2rh_gpio_irq_ack, + .irq_mask = emma2rh_gpio_irq_disable, + .irq_mask_ack = emma2rh_gpio_irq_mask_ack, + .irq_unmask = emma2rh_gpio_irq_enable, }; void emma2rh_gpio_irq_init(void) -- cgit v1.2.3 From db00bed4baa8951b579519e90d8d7f215db2827a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:52 +0000 Subject: MIPS: JAZZ: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2180/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/jazz/irq.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c index 35b3e2f0af04..40f7c6b1e260 100644 --- a/arch/mips/jazz/irq.c +++ b/arch/mips/jazz/irq.c @@ -23,9 +23,9 @@ static DEFINE_RAW_SPINLOCK(r4030_lock); -static void enable_r4030_irq(unsigned int irq) +static void enable_r4030_irq(struct irq_data *d) { - unsigned int mask = 1 << (irq - JAZZ_IRQ_START); + unsigned int mask = 1 << (d->irq - JAZZ_IRQ_START); unsigned long flags; raw_spin_lock_irqsave(&r4030_lock, flags); @@ -34,9 +34,9 @@ static void enable_r4030_irq(unsigned int irq) raw_spin_unlock_irqrestore(&r4030_lock, flags); } -void disable_r4030_irq(unsigned int irq) +void disable_r4030_irq(struct irq_data *d) { - unsigned int mask = ~(1 << (irq - JAZZ_IRQ_START)); + unsigned int mask = ~(1 << (d->irq - JAZZ_IRQ_START)); unsigned long flags; raw_spin_lock_irqsave(&r4030_lock, flags); @@ -47,10 +47,8 @@ void disable_r4030_irq(unsigned int irq) static struct irq_chip r4030_irq_type = { .name = "R4030", - .ack = disable_r4030_irq, - .mask = disable_r4030_irq, - .mask_ack = disable_r4030_irq, - .unmask = enable_r4030_irq, + .irq_mask = disable_r4030_irq, + .irq_unmask = enable_r4030_irq, }; void __init init_r4030_ints(void) -- cgit v1.2.3 From 42b64f388c171a7a1a8962d93d9bae2c04da7738 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:53 +0000 Subject: MIPS: JZ4740: Convert to new irq functions Convert the JZ4740 intc and gpio irq chips to use newstyle irq functions. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2181/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/jz4740/gpio.c | 93 +++++++++++++++++++++++++------------------------ arch/mips/jz4740/irq.c | 32 ++++++++++------- 2 files changed, 67 insertions(+), 58 deletions(-) diff --git a/arch/mips/jz4740/gpio.c b/arch/mips/jz4740/gpio.c index 88e6aeda5bf1..1e28b758de1f 100644 --- a/arch/mips/jz4740/gpio.c +++ b/arch/mips/jz4740/gpio.c @@ -102,9 +102,9 @@ static inline struct jz_gpio_chip *gpio_chip_to_jz_gpio_chip(struct gpio_chip *g return container_of(gpio_chip, struct jz_gpio_chip, gpio_chip); } -static inline struct jz_gpio_chip *irq_to_jz_gpio_chip(unsigned int irq) +static inline struct jz_gpio_chip *irq_to_jz_gpio_chip(struct irq_data *data) { - return get_irq_chip_data(irq); + return irq_data_get_irq_chip_data(data); } static inline void jz_gpio_write_bit(unsigned int gpio, unsigned int reg) @@ -325,62 +325,63 @@ static void jz_gpio_irq_demux_handler(unsigned int irq, struct irq_desc *desc) generic_handle_irq(gpio_irq); }; -static inline void jz_gpio_set_irq_bit(unsigned int irq, unsigned int reg) +static inline void jz_gpio_set_irq_bit(struct irq_data *data, unsigned int reg) { - struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(irq); - writel(IRQ_TO_BIT(irq), chip->base + reg); + struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data); + writel(IRQ_TO_BIT(data->irq), chip->base + reg); } -static void jz_gpio_irq_mask(unsigned int irq) +static void jz_gpio_irq_mask(struct irq_data *data) { - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_MASK_SET); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_MASK_SET); }; -static void jz_gpio_irq_unmask(unsigned int irq) +static void jz_gpio_irq_unmask(struct irq_data *data) { - struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(irq); + struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data); - jz_gpio_check_trigger_both(chip, irq); + jz_gpio_check_trigger_both(chip, data->irq); - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_MASK_CLEAR); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_MASK_CLEAR); }; /* TODO: Check if function is gpio */ -static unsigned int jz_gpio_irq_startup(unsigned int irq) +static unsigned int jz_gpio_irq_startup(struct irq_data *data) { - struct irq_desc *desc = irq_to_desc(irq); + struct irq_desc *desc = irq_to_desc(data->irq); - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_SELECT_SET); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_SELECT_SET); desc->status &= ~IRQ_MASKED; - jz_gpio_irq_unmask(irq); + jz_gpio_irq_unmask(data); return 0; } -static void jz_gpio_irq_shutdown(unsigned int irq) +static void jz_gpio_irq_shutdown(struct irq_data *data) { - struct irq_desc *desc = irq_to_desc(irq); + struct irq_desc *desc = irq_to_desc(data->irq); - jz_gpio_irq_mask(irq); + jz_gpio_irq_mask(data); desc->status |= IRQ_MASKED; /* Set direction to input */ - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_CLEAR); - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_SELECT_CLEAR); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_SELECT_CLEAR); } -static void jz_gpio_irq_ack(unsigned int irq) +static void jz_gpio_irq_ack(struct irq_data *data) { - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_FLAG_CLEAR); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_FLAG_CLEAR); }; -static int jz_gpio_irq_set_type(unsigned int irq, unsigned int flow_type) +static int jz_gpio_irq_set_type(struct irq_data *data, unsigned int flow_type) { - struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(irq); - struct irq_desc *desc = irq_to_desc(irq); + struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data); + struct irq_desc *desc = irq_to_desc(data->irq); + unsigned int irq = data->irq; - jz_gpio_irq_mask(irq); + jz_gpio_irq_mask(data); if (flow_type == IRQ_TYPE_EDGE_BOTH) { uint32_t value = readl(chip->base + JZ_REG_GPIO_PIN); @@ -395,39 +396,39 @@ static int jz_gpio_irq_set_type(unsigned int irq, unsigned int flow_type) switch (flow_type) { case IRQ_TYPE_EDGE_RISING: - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_SET); - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_TRIGGER_SET); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_SET); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_SET); break; case IRQ_TYPE_EDGE_FALLING: - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_CLEAR); - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_TRIGGER_SET); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_SET); break; case IRQ_TYPE_LEVEL_HIGH: - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_SET); - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_TRIGGER_CLEAR); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_SET); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_CLEAR); break; case IRQ_TYPE_LEVEL_LOW: - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_DIRECTION_CLEAR); - jz_gpio_set_irq_bit(irq, JZ_REG_GPIO_TRIGGER_CLEAR); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR); + jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_CLEAR); break; default: return -EINVAL; } if (!(desc->status & IRQ_MASKED)) - jz_gpio_irq_unmask(irq); + jz_gpio_irq_unmask(data); return 0; } -static int jz_gpio_irq_set_wake(unsigned int irq, unsigned int on) +static int jz_gpio_irq_set_wake(struct irq_data *data, unsigned int on) { - struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(irq); + struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data); spin_lock(&chip->lock); if (on) - chip->wakeup |= IRQ_TO_BIT(irq); + chip->wakeup |= IRQ_TO_BIT(data->irq); else - chip->wakeup &= ~IRQ_TO_BIT(irq); + chip->wakeup &= ~IRQ_TO_BIT(data->irq); spin_unlock(&chip->lock); set_irq_wake(chip->irq, on); @@ -454,13 +455,13 @@ static struct lock_class_key gpio_lock_class; }, \ .irq_chip = { \ .name = "GPIO Bank " # _bank, \ - .mask = jz_gpio_irq_mask, \ - .unmask = jz_gpio_irq_unmask, \ - .ack = jz_gpio_irq_ack, \ - .startup = jz_gpio_irq_startup, \ - .shutdown = jz_gpio_irq_shutdown, \ - .set_type = jz_gpio_irq_set_type, \ - .set_wake = jz_gpio_irq_set_wake, \ + .irq_mask = jz_gpio_irq_mask, \ + .irq_unmask = jz_gpio_irq_unmask, \ + .irq_ack = jz_gpio_irq_ack, \ + .irq_startup = jz_gpio_irq_startup, \ + .irq_shutdown = jz_gpio_irq_shutdown, \ + .irq_set_type = jz_gpio_irq_set_type, \ + .irq_set_wake = jz_gpio_irq_set_wake, \ }, \ } diff --git a/arch/mips/jz4740/irq.c b/arch/mips/jz4740/irq.c index 7d33ff83580f..dcc5593a9389 100644 --- a/arch/mips/jz4740/irq.c +++ b/arch/mips/jz4740/irq.c @@ -43,32 +43,37 @@ static uint32_t jz_intc_saved; #define IRQ_BIT(x) BIT((x) - JZ4740_IRQ_BASE) -static void intc_irq_unmask(unsigned int irq) +static inline unsigned long intc_irq_bit(struct irq_data *data) { - writel(IRQ_BIT(irq), jz_intc_base + JZ_REG_INTC_CLEAR_MASK); + return (unsigned long)irq_data_get_irq_chip_data(data); } -static void intc_irq_mask(unsigned int irq) +static void intc_irq_unmask(struct irq_data *data) { - writel(IRQ_BIT(irq), jz_intc_base + JZ_REG_INTC_SET_MASK); + writel(intc_irq_bit(data), jz_intc_base + JZ_REG_INTC_CLEAR_MASK); } -static int intc_irq_set_wake(unsigned int irq, unsigned int on) +static void intc_irq_mask(struct irq_data *data) +{ + writel(intc_irq_bit(data), jz_intc_base + JZ_REG_INTC_SET_MASK); +} + +static int intc_irq_set_wake(struct irq_data *data, unsigned int on) { if (on) - jz_intc_wakeup |= IRQ_BIT(irq); + jz_intc_wakeup |= intc_irq_bit(data); else - jz_intc_wakeup &= ~IRQ_BIT(irq); + jz_intc_wakeup &= ~intc_irq_bit(data); return 0; } static struct irq_chip intc_irq_type = { .name = "INTC", - .mask = intc_irq_mask, - .mask_ack = intc_irq_mask, - .unmask = intc_irq_unmask, - .set_wake = intc_irq_set_wake, + .irq_mask = intc_irq_mask, + .irq_mask_ack = intc_irq_mask, + .irq_unmask = intc_irq_unmask, + .irq_set_wake = intc_irq_set_wake, }; static irqreturn_t jz4740_cascade(int irq, void *data) @@ -95,8 +100,11 @@ void __init arch_init_irq(void) jz_intc_base = ioremap(JZ4740_INTC_BASE_ADDR, 0x14); + /* Mask all irqs */ + writel(0xffffffff, jz_intc_base + JZ_REG_INTC_SET_MASK); + for (i = JZ4740_IRQ_BASE; i < JZ4740_IRQ_BASE + 32; i++) { - intc_irq_mask(i); + set_irq_chip_data(i, (void *)IRQ_BIT(i)); set_irq_chip_and_handler(i, &intc_irq_type, handle_level_irq); } -- cgit v1.2.3 From cd11d14de91809ff3a150f823965a5b4209cad84 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Wed, 23 Mar 2011 21:08:54 +0000 Subject: MIPS: JZ4740: GPIO: Use shared irq chip for all gpios Currently there is one irq_chip per gpio_chip with the only difference being the name. Since the information whether the irq belong to GPIO bank A, B, C or D is not that important rewrite the code to simply use a single irq_chip for all gpio_chips. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2182/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/jz4740/gpio.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/arch/mips/jz4740/gpio.c b/arch/mips/jz4740/gpio.c index 1e28b758de1f..9bb0770fa76e 100644 --- a/arch/mips/jz4740/gpio.c +++ b/arch/mips/jz4740/gpio.c @@ -86,7 +86,6 @@ struct jz_gpio_chip { spinlock_t lock; struct gpio_chip gpio_chip; - struct irq_chip irq_chip; struct sys_device sysdev; }; @@ -435,6 +434,17 @@ static int jz_gpio_irq_set_wake(struct irq_data *data, unsigned int on) return 0; } +static struct irq_chip jz_gpio_irq_chip = { + .name = "GPIO", + .irq_mask = jz_gpio_irq_mask, + .irq_unmask = jz_gpio_irq_unmask, + .irq_ack = jz_gpio_irq_ack, + .irq_startup = jz_gpio_irq_startup, + .irq_shutdown = jz_gpio_irq_shutdown, + .irq_set_type = jz_gpio_irq_set_type, + .irq_set_wake = jz_gpio_irq_set_wake, +}; + /* * This lock class tells lockdep that GPIO irqs are in a different * category than their parents, so it won't report false recursion. @@ -453,16 +463,6 @@ static struct lock_class_key gpio_lock_class; .base = JZ4740_GPIO_BASE_ ## _bank, \ .ngpio = JZ4740_GPIO_NUM_ ## _bank, \ }, \ - .irq_chip = { \ - .name = "GPIO Bank " # _bank, \ - .irq_mask = jz_gpio_irq_mask, \ - .irq_unmask = jz_gpio_irq_unmask, \ - .irq_ack = jz_gpio_irq_ack, \ - .irq_startup = jz_gpio_irq_startup, \ - .irq_shutdown = jz_gpio_irq_shutdown, \ - .irq_set_type = jz_gpio_irq_set_type, \ - .irq_set_wake = jz_gpio_irq_set_wake, \ - }, \ } static struct jz_gpio_chip jz4740_gpio_chips[] = { @@ -529,7 +529,8 @@ static int jz4740_gpio_chip_init(struct jz_gpio_chip *chip, unsigned int id) for (irq = chip->irq_base; irq < chip->irq_base + chip->gpio_chip.ngpio; ++irq) { lockdep_set_class(&irq_desc[irq].lock, &gpio_lock_class); set_irq_chip_data(irq, chip); - set_irq_chip_and_handler(irq, &chip->irq_chip, handle_level_irq); + set_irq_chip_and_handler(irq, &jz_gpio_irq_chip, + handle_level_irq); } return 0; -- cgit v1.2.3 From fe92a238263991c81e0910e0b2f56ed969ec160d Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Wed, 23 Mar 2011 21:08:55 +0000 Subject: MIPS: JZ4740: Cleanup the mechanical irq_chip conversion The conversion did not make use of the new chip flag which signals the core code to mask the chip before calling the set_type callback. Sigh. Use the new lockdep helper as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2183/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/jz4740/gpio.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) diff --git a/arch/mips/jz4740/gpio.c b/arch/mips/jz4740/gpio.c index 9bb0770fa76e..bd2fc29b95e0 100644 --- a/arch/mips/jz4740/gpio.c +++ b/arch/mips/jz4740/gpio.c @@ -347,22 +347,14 @@ static void jz_gpio_irq_unmask(struct irq_data *data) /* TODO: Check if function is gpio */ static unsigned int jz_gpio_irq_startup(struct irq_data *data) { - struct irq_desc *desc = irq_to_desc(data->irq); - jz_gpio_set_irq_bit(data, JZ_REG_GPIO_SELECT_SET); - - desc->status &= ~IRQ_MASKED; jz_gpio_irq_unmask(data); - return 0; } static void jz_gpio_irq_shutdown(struct irq_data *data) { - struct irq_desc *desc = irq_to_desc(data->irq); - jz_gpio_irq_mask(data); - desc->status |= IRQ_MASKED; /* Set direction to input */ jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR); @@ -377,11 +369,8 @@ static void jz_gpio_irq_ack(struct irq_data *data) static int jz_gpio_irq_set_type(struct irq_data *data, unsigned int flow_type) { struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data); - struct irq_desc *desc = irq_to_desc(data->irq); unsigned int irq = data->irq; - jz_gpio_irq_mask(data); - if (flow_type == IRQ_TYPE_EDGE_BOTH) { uint32_t value = readl(chip->base + JZ_REG_GPIO_PIN); if (value & IRQ_TO_BIT(irq)) @@ -414,9 +403,6 @@ static int jz_gpio_irq_set_type(struct irq_data *data, unsigned int flow_type) return -EINVAL; } - if (!(desc->status & IRQ_MASKED)) - jz_gpio_irq_unmask(data); - return 0; } @@ -443,6 +429,7 @@ static struct irq_chip jz_gpio_irq_chip = { .irq_shutdown = jz_gpio_irq_shutdown, .irq_set_type = jz_gpio_irq_set_type, .irq_set_wake = jz_gpio_irq_set_wake, + .flags = IRQCHIP_SET_TYPE_MASKED, }; /* @@ -527,7 +514,7 @@ static int jz4740_gpio_chip_init(struct jz_gpio_chip *chip, unsigned int id) set_irq_chained_handler(chip->irq, jz_gpio_irq_demux_handler); for (irq = chip->irq_base; irq < chip->irq_base + chip->gpio_chip.ngpio; ++irq) { - lockdep_set_class(&irq_desc[irq].lock, &gpio_lock_class); + irq_set_lockdep_class(irq, &gpio_lock_class); set_irq_chip_data(irq, chip); set_irq_chip_and_handler(irq, &jz_gpio_irq_chip, handle_level_irq); -- cgit v1.2.3 From 9fcecaf02dbde08337323bcca7917ec0baad0cc2 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:56 +0000 Subject: MIPS: LASAt: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2184/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/lasat/interrupt.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c index 1353fb135ed3..670e3e70d198 100644 --- a/arch/mips/lasat/interrupt.c +++ b/arch/mips/lasat/interrupt.c @@ -32,24 +32,24 @@ static volatile int *lasat_int_status; static volatile int *lasat_int_mask; static volatile int lasat_int_mask_shift; -void disable_lasat_irq(unsigned int irq_nr) +void disable_lasat_irq(struct irq_data *d) { - irq_nr -= LASAT_IRQ_BASE; + unsigned int irq_nr = d->irq - LASAT_IRQ_BASE; + *lasat_int_mask &= ~(1 << irq_nr) << lasat_int_mask_shift; } -void enable_lasat_irq(unsigned int irq_nr) +void enable_lasat_irq(struct irq_data *d) { - irq_nr -= LASAT_IRQ_BASE; + unsigned int irq_nr = d->irq - LASAT_IRQ_BASE; + *lasat_int_mask |= (1 << irq_nr) << lasat_int_mask_shift; } static struct irq_chip lasat_irq_type = { .name = "Lasat", - .ack = disable_lasat_irq, - .mask = disable_lasat_irq, - .mask_ack = disable_lasat_irq, - .unmask = enable_lasat_irq, + .irq_mask = disable_lasat_irq, + .irq_unmask = enable_lasat_irq, }; static inline int ls1bit32(unsigned int x) -- cgit v1.2.3 From 7c8d948f1633da5ff81e4f5b31ef237d74c40127 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:57 +0000 Subject: MIPS: i8259: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2185/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/include/asm/irq.h | 4 ++-- arch/mips/kernel/i8259.c | 37 +++++++++++++++++-------------------- arch/mips/mti-malta/malta-smtc.c | 9 +++++---- 3 files changed, 24 insertions(+), 26 deletions(-) diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h index b003ed52ed17..bdc8b8c18328 100644 --- a/arch/mips/include/asm/irq.h +++ b/arch/mips/include/asm/irq.h @@ -55,8 +55,8 @@ static inline void smtc_im_ack_irq(unsigned int irq) #ifdef CONFIG_MIPS_MT_SMTC_IRQAFF #include <linux/cpumask.h> -extern int plat_set_irq_affinity(unsigned int irq, - const struct cpumask *affinity); +extern int plat_set_irq_affinity(struct irq_data *d, + const struct cpumask *affinity, bool force); extern void smtc_forward_irq(unsigned int irq); /* diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c index c58176cc796b..e221662bb80c 100644 --- a/arch/mips/kernel/i8259.c +++ b/arch/mips/kernel/i8259.c @@ -31,19 +31,19 @@ static int i8259A_auto_eoi = -1; DEFINE_RAW_SPINLOCK(i8259A_lock); -static void disable_8259A_irq(unsigned int irq); -static void enable_8259A_irq(unsigned int irq); -static void mask_and_ack_8259A(unsigned int irq); +static void disable_8259A_irq(struct irq_data *d); +static void enable_8259A_irq(struct irq_data *d); +static void mask_and_ack_8259A(struct irq_data *d); static void init_8259A(int auto_eoi); static struct irq_chip i8259A_chip = { - .name = "XT-PIC", - .mask = disable_8259A_irq, - .disable = disable_8259A_irq, - .unmask = enable_8259A_irq, - .mask_ack = mask_and_ack_8259A, + .name = "XT-PIC", + .irq_mask = disable_8259A_irq, + .irq_disable = disable_8259A_irq, + .irq_unmask = enable_8259A_irq, + .irq_mask_ack = mask_and_ack_8259A, #ifdef CONFIG_MIPS_MT_SMTC_IRQAFF - .set_affinity = plat_set_irq_affinity, + .irq_set_affinity = plat_set_irq_affinity, #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */ }; @@ -59,12 +59,11 @@ static unsigned int cached_irq_mask = 0xffff; #define cached_master_mask (cached_irq_mask) #define cached_slave_mask (cached_irq_mask >> 8) -static void disable_8259A_irq(unsigned int irq) +static void disable_8259A_irq(struct irq_data *d) { - unsigned int mask; + unsigned int mask, irq = d->irq - I8259A_IRQ_BASE; unsigned long flags; - irq -= I8259A_IRQ_BASE; mask = 1 << irq; raw_spin_lock_irqsave(&i8259A_lock, flags); cached_irq_mask |= mask; @@ -75,12 +74,11 @@ static void disable_8259A_irq(unsigned int irq) raw_spin_unlock_irqrestore(&i8259A_lock, flags); } -static void enable_8259A_irq(unsigned int irq) +static void enable_8259A_irq(struct irq_data *d) { - unsigned int mask; + unsigned int mask, irq = d->irq - I8259A_IRQ_BASE; unsigned long flags; - irq -= I8259A_IRQ_BASE; mask = ~(1 << irq); raw_spin_lock_irqsave(&i8259A_lock, flags); cached_irq_mask &= mask; @@ -145,12 +143,11 @@ static inline int i8259A_irq_real(unsigned int irq) * first, _then_ send the EOI, and the order of EOI * to the two 8259s is important! */ -static void mask_and_ack_8259A(unsigned int irq) +static void mask_and_ack_8259A(struct irq_data *d) { - unsigned int irqmask; + unsigned int irqmask, irq = d->irq - I8259A_IRQ_BASE; unsigned long flags; - irq -= I8259A_IRQ_BASE; irqmask = 1 << irq; raw_spin_lock_irqsave(&i8259A_lock, flags); /* @@ -290,9 +287,9 @@ static void init_8259A(int auto_eoi) * In AEOI mode we just have to mask the interrupt * when acking. */ - i8259A_chip.mask_ack = disable_8259A_irq; + i8259A_chip.irq_mask_ack = disable_8259A_irq; else - i8259A_chip.mask_ack = mask_and_ack_8259A; + i8259A_chip.irq_mask_ack = mask_and_ack_8259A; udelay(100); /* wait for 8259A to initialize */ diff --git a/arch/mips/mti-malta/malta-smtc.c b/arch/mips/mti-malta/malta-smtc.c index 2043cb6e71c5..e67891521ac1 100644 --- a/arch/mips/mti-malta/malta-smtc.c +++ b/arch/mips/mti-malta/malta-smtc.c @@ -113,7 +113,8 @@ struct plat_smp_ops msmtc_smp_ops = { */ -int plat_set_irq_affinity(unsigned int irq, const struct cpumask *affinity) +int plat_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity, + bool force) { cpumask_t tmask; int cpu = 0; @@ -143,7 +144,7 @@ int plat_set_irq_affinity(unsigned int irq, const struct cpumask *affinity) if ((cpu_data[cpu].vpe_id != 0) || !cpu_online(cpu)) cpu_clear(cpu, tmask); } - cpumask_copy(irq_desc[irq].affinity, &tmask); + cpumask_copy(d->affinity, &tmask); if (cpus_empty(tmask)) /* @@ -154,8 +155,8 @@ int plat_set_irq_affinity(unsigned int irq, const struct cpumask *affinity) "IRQ affinity leaves no legal CPU for IRQ %d\n", irq); /* Do any generic SMTC IRQ affinity setup */ - smtc_set_irq_affinity(irq, tmask); + smtc_set_irq_affinity(d->irq, tmask); - return 0; + return IRQ_SET_MASK_OK_NOCOPY; } #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */ -- cgit v1.2.3 From 161d049e8c6435284a792cbd00d420a506edd2cb Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:58 +0000 Subject: MIPS: GIC: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2186/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/irq-gic.c | 43 ++++++++++++++++++------------------------- 1 file changed, 18 insertions(+), 25 deletions(-) diff --git a/arch/mips/kernel/irq-gic.c b/arch/mips/kernel/irq-gic.c index 1774271af848..43cd9628251a 100644 --- a/arch/mips/kernel/irq-gic.c +++ b/arch/mips/kernel/irq-gic.c @@ -87,17 +87,10 @@ unsigned int gic_get_int(void) return i; } -static unsigned int gic_irq_startup(unsigned int irq) +static void gic_irq_ack(struct irq_data *d) { - irq -= _irqbase; - pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq); - GIC_SET_INTR_MASK(irq); - return 0; -} + unsigned int irq = d->irq - _irqbase; -static void gic_irq_ack(unsigned int irq) -{ - irq -= _irqbase; pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq); GIC_CLR_INTR_MASK(irq); @@ -105,16 +98,16 @@ static void gic_irq_ack(unsigned int irq) GICWRITE(GIC_REG(SHARED, GIC_SH_WEDGE), irq); } -static void gic_mask_irq(unsigned int irq) +static void gic_mask_irq(struct irq_data *d) { - irq -= _irqbase; + unsigned int irq = d->irq - _irqbase; pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq); GIC_CLR_INTR_MASK(irq); } -static void gic_unmask_irq(unsigned int irq) +static void gic_unmask_irq(struct irq_data *d) { - irq -= _irqbase; + unsigned int irq = d->irq - _irqbase; pr_debug("CPU%d: %s: irq%d\n", smp_processor_id(), __func__, irq); GIC_SET_INTR_MASK(irq); } @@ -123,13 +116,14 @@ static void gic_unmask_irq(unsigned int irq) static DEFINE_SPINLOCK(gic_lock); -static int gic_set_affinity(unsigned int irq, const struct cpumask *cpumask) +static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask, + bool force) { + unsigned int irq = d->irq - _irqbase; cpumask_t tmp = CPU_MASK_NONE; unsigned long flags; int i; - irq -= _irqbase; pr_debug("%s(%d) called\n", __func__, irq); cpumask_and(&tmp, cpumask, cpu_online_mask); if (cpus_empty(tmp)) @@ -147,23 +141,22 @@ static int gic_set_affinity(unsigned int irq, const struct cpumask *cpumask) set_bit(irq, pcpu_masks[first_cpu(tmp)].pcpu_mask); } - cpumask_copy(irq_desc[irq].affinity, cpumask); + cpumask_copy(d->affinity, cpumask); spin_unlock_irqrestore(&gic_lock, flags); - return 0; + return IRQ_SET_MASK_OK_NOCOPY; } #endif static struct irq_chip gic_irq_controller = { - .name = "MIPS GIC", - .startup = gic_irq_startup, - .ack = gic_irq_ack, - .mask = gic_mask_irq, - .mask_ack = gic_mask_irq, - .unmask = gic_unmask_irq, - .eoi = gic_unmask_irq, + .name = "MIPS GIC", + .irq_ack = gic_irq_ack, + .irq_mask = gic_mask_irq, + .irq_mask_ack = gic_mask_irq, + .irq_unmask = gic_unmask_irq, + .irq_eoi = gic_unmask_irq, #ifdef CONFIG_SMP - .set_affinity = gic_set_affinity, + .irq_set_affinity = gic_set_affinity, #endif }; -- cgit v1.2.3 From aa400ae5ecaeab00336fdedf51f58c017e5f2274 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:59 +0000 Subject: MIPS: GT641xx: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2187/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/irq-gt641xx.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/mips/kernel/irq-gt641xx.c b/arch/mips/kernel/irq-gt641xx.c index 42ef81461bfc..7fd176fa367a 100644 --- a/arch/mips/kernel/irq-gt641xx.c +++ b/arch/mips/kernel/irq-gt641xx.c @@ -29,64 +29,64 @@ static DEFINE_RAW_SPINLOCK(gt641xx_irq_lock); -static void ack_gt641xx_irq(unsigned int irq) +static void ack_gt641xx_irq(struct irq_data *d) { unsigned long flags; u32 cause; raw_spin_lock_irqsave(>641xx_irq_lock, flags); cause = GT_READ(GT_INTRCAUSE_OFS); - cause &= ~GT641XX_IRQ_TO_BIT(irq); + cause &= ~GT641XX_IRQ_TO_BIT(d->irq); GT_WRITE(GT_INTRCAUSE_OFS, cause); raw_spin_unlock_irqrestore(>641xx_irq_lock, flags); } -static void mask_gt641xx_irq(unsigned int irq) +static void mask_gt641xx_irq(struct irq_data *d) { unsigned long flags; u32 mask; raw_spin_lock_irqsave(>641xx_irq_lock, flags); mask = GT_READ(GT_INTRMASK_OFS); - mask &= ~GT641XX_IRQ_TO_BIT(irq); + mask &= ~GT641XX_IRQ_TO_BIT(d->irq); GT_WRITE(GT_INTRMASK_OFS, mask); raw_spin_unlock_irqrestore(>641xx_irq_lock, flags); } -static void mask_ack_gt641xx_irq(unsigned int irq) +static void mask_ack_gt641xx_irq(struct irq_data *d) { unsigned long flags; u32 cause, mask; raw_spin_lock_irqsave(>641xx_irq_lock, flags); mask = GT_READ(GT_INTRMASK_OFS); - mask &= ~GT641XX_IRQ_TO_BIT(irq); + mask &= ~GT641XX_IRQ_TO_BIT(d->irq); GT_WRITE(GT_INTRMASK_OFS, mask); cause = GT_READ(GT_INTRCAUSE_OFS); - cause &= ~GT641XX_IRQ_TO_BIT(irq); + cause &= ~GT641XX_IRQ_TO_BIT(d->irq); GT_WRITE(GT_INTRCAUSE_OFS, cause); raw_spin_unlock_irqrestore(>641xx_irq_lock, flags); } -static void unmask_gt641xx_irq(unsigned int irq) +static void unmask_gt641xx_irq(struct irq_data *d) { unsigned long flags; u32 mask; raw_spin_lock_irqsave(>641xx_irq_lock, flags); mask = GT_READ(GT_INTRMASK_OFS); - mask |= GT641XX_IRQ_TO_BIT(irq); + mask |= GT641XX_IRQ_TO_BIT(d->irq); GT_WRITE(GT_INTRMASK_OFS, mask); raw_spin_unlock_irqrestore(>641xx_irq_lock, flags); } static struct irq_chip gt641xx_irq_chip = { .name = "GT641xx", - .ack = ack_gt641xx_irq, - .mask = mask_gt641xx_irq, - .mask_ack = mask_ack_gt641xx_irq, - .unmask = unmask_gt641xx_irq, + .irq_ack = ack_gt641xx_irq, + .irq_mask = mask_gt641xx_irq, + .irq_mask_ack = mask_ack_gt641xx_irq, + .irq_unmask = unmask_gt641xx_irq, }; void gt641xx_irq_dispatch(void) -- cgit v1.2.3 From e15883da8a8b83c73bf1ba030cddeb2cfd92a555 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:08:59 +0000 Subject: MIPS: MSC01: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2188/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/irq-msc01.c | 51 +++++++++++++++++++++----------------------- 1 file changed, 24 insertions(+), 27 deletions(-) diff --git a/arch/mips/kernel/irq-msc01.c b/arch/mips/kernel/irq-msc01.c index 6a8cd28133d5..fc800cd9947e 100644 --- a/arch/mips/kernel/irq-msc01.c +++ b/arch/mips/kernel/irq-msc01.c @@ -28,8 +28,10 @@ static unsigned long _icctrl_msc; static unsigned int irq_base; /* mask off an interrupt */ -static inline void mask_msc_irq(unsigned int irq) +static inline void mask_msc_irq(struct irq_data *d) { + unsigned int irq = d->irq; + if (irq < (irq_base + 32)) MSCIC_WRITE(MSC01_IC_DISL, 1<<(irq - irq_base)); else @@ -37,8 +39,10 @@ static inline void mask_msc_irq(unsigned int irq) } /* unmask an interrupt */ -static inline void unmask_msc_irq(unsigned int irq) +static inline void unmask_msc_irq(struct irq_data *d) { + unsigned int irq = d->irq; + if (irq < (irq_base + 32)) MSCIC_WRITE(MSC01_IC_ENAL, 1<<(irq - irq_base)); else @@ -48,9 +52,11 @@ static inline void unmask_msc_irq(unsigned int irq) /* * Masks and ACKs an IRQ */ -static void level_mask_and_ack_msc_irq(unsigned int irq) +static void level_mask_and_ack_msc_irq(struct irq_data *d) { - mask_msc_irq(irq); + unsigned int irq = d->irq; + + mask_msc_irq(d); if (!cpu_has_veic) MSCIC_WRITE(MSC01_IC_EOI, 0); /* This actually needs to be a call into platform code */ @@ -60,9 +66,11 @@ static void level_mask_and_ack_msc_irq(unsigned int irq) /* * Masks and ACKs an IRQ */ -static void edge_mask_and_ack_msc_irq(unsigned int irq) +static void edge_mask_and_ack_msc_irq(struct irq_data *d) { - mask_msc_irq(irq); + unsigned int irq = d->irq; + + mask_msc_irq(d); if (!cpu_has_veic) MSCIC_WRITE(MSC01_IC_EOI, 0); else { @@ -74,15 +82,6 @@ static void edge_mask_and_ack_msc_irq(unsigned int irq) smtc_im_ack_irq(irq); } -/* - * End IRQ processing - */ -static void end_msc_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - unmask_msc_irq(irq); -} - /* * Interrupt handler for interrupts coming from SOC-it. */ @@ -107,22 +106,20 @@ static void msc_bind_eic_interrupt(int irq, int set) static struct irq_chip msc_levelirq_type = { .name = "SOC-it-Level", - .ack = level_mask_and_ack_msc_irq, - .mask = mask_msc_irq, - .mask_ack = level_mask_and_ack_msc_irq, - .unmask = unmask_msc_irq, - .eoi = unmask_msc_irq, - .end = end_msc_irq, + .irq_ack = level_mask_and_ack_msc_irq, + .irq_mask = mask_msc_irq, + .irq_mask_ack = level_mask_and_ack_msc_irq, + .irq_unmask = unmask_msc_irq, + .irq_eoi = unmask_msc_irq, }; static struct irq_chip msc_edgeirq_type = { .name = "SOC-it-Edge", - .ack = edge_mask_and_ack_msc_irq, - .mask = mask_msc_irq, - .mask_ack = edge_mask_and_ack_msc_irq, - .unmask = unmask_msc_irq, - .eoi = unmask_msc_irq, - .end = end_msc_irq, + .irq_ack = edge_mask_and_ack_msc_irq, + .irq_mask = mask_msc_irq, + .irq_mask_ack = edge_mask_and_ack_msc_irq, + .irq_unmask = unmask_msc_irq, + .irq_eoi = unmask_msc_irq, }; -- cgit v1.2.3 From e059852acaf4c2e2f2de6fa90d18946ea6b5bdb4 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:00 +0000 Subject: MIPS: rm7000: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2189/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/irq-rm7000.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/mips/kernel/irq-rm7000.c b/arch/mips/kernel/irq-rm7000.c index 9731e8b47862..fd24fd98b041 100644 --- a/arch/mips/kernel/irq-rm7000.c +++ b/arch/mips/kernel/irq-rm7000.c @@ -18,23 +18,23 @@ #include <asm/mipsregs.h> #include <asm/system.h> -static inline void unmask_rm7k_irq(unsigned int irq) +static inline void unmask_rm7k_irq(struct irq_data *d) { - set_c0_intcontrol(0x100 << (irq - RM7K_CPU_IRQ_BASE)); + set_c0_intcontrol(0x100 << (d->irq - RM7K_CPU_IRQ_BASE)); } -static inline void mask_rm7k_irq(unsigned int irq) +static inline void mask_rm7k_irq(struct irq_data *d) { - clear_c0_intcontrol(0x100 << (irq - RM7K_CPU_IRQ_BASE)); + clear_c0_intcontrol(0x100 << (d->irq - RM7K_CPU_IRQ_BASE)); } static struct irq_chip rm7k_irq_controller = { .name = "RM7000", - .ack = mask_rm7k_irq, - .mask = mask_rm7k_irq, - .mask_ack = mask_rm7k_irq, - .unmask = unmask_rm7k_irq, - .eoi = unmask_rm7k_irq + .irq_ack = mask_rm7k_irq, + .irq_mask = mask_rm7k_irq, + .irq_mask_ack = mask_rm7k_irq, + .irq_unmask = unmask_rm7k_irq, + .irq_eoi = unmask_rm7k_irq }; void __init rm7k_cpu_irq_init(void) -- cgit v1.2.3 From 5b3a374109f844ab7307ce3486749a1b69a7b3a7 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:01 +0000 Subject: MIPS: RM9000: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2190/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/irq-rm9000.c | 49 ++++++++++++++++++++----------------------- 1 file changed, 23 insertions(+), 26 deletions(-) diff --git a/arch/mips/kernel/irq-rm9000.c b/arch/mips/kernel/irq-rm9000.c index b7e4025b58a8..ca463ec9bad5 100644 --- a/arch/mips/kernel/irq-rm9000.c +++ b/arch/mips/kernel/irq-rm9000.c @@ -19,22 +19,22 @@ #include <asm/mipsregs.h> #include <asm/system.h> -static inline void unmask_rm9k_irq(unsigned int irq) +static inline void unmask_rm9k_irq(struct irq_data *d) { - set_c0_intcontrol(0x1000 << (irq - RM9K_CPU_IRQ_BASE)); + set_c0_intcontrol(0x1000 << (d->irq - RM9K_CPU_IRQ_BASE)); } -static inline void mask_rm9k_irq(unsigned int irq) +static inline void mask_rm9k_irq(struct irq_data *d) { - clear_c0_intcontrol(0x1000 << (irq - RM9K_CPU_IRQ_BASE)); + clear_c0_intcontrol(0x1000 << (d->irq - RM9K_CPU_IRQ_BASE)); } -static inline void rm9k_cpu_irq_enable(unsigned int irq) +static inline void rm9k_cpu_irq_enable(struct irq_data *d) { unsigned long flags; local_irq_save(flags); - unmask_rm9k_irq(irq); + unmask_rm9k_irq(d); local_irq_restore(flags); } @@ -43,50 +43,47 @@ static inline void rm9k_cpu_irq_enable(unsigned int irq) */ static void local_rm9k_perfcounter_irq_startup(void *args) { - unsigned int irq = (unsigned int) args; - - rm9k_cpu_irq_enable(irq); + rm9k_cpu_irq_enable(args); } -static unsigned int rm9k_perfcounter_irq_startup(unsigned int irq) +static unsigned int rm9k_perfcounter_irq_startup(struct irq_data *d) { - on_each_cpu(local_rm9k_perfcounter_irq_startup, (void *) irq, 1); + on_each_cpu(local_rm9k_perfcounter_irq_startup, d, 1); return 0; } static void local_rm9k_perfcounter_irq_shutdown(void *args) { - unsigned int irq = (unsigned int) args; unsigned long flags; local_irq_save(flags); - mask_rm9k_irq(irq); + mask_rm9k_irq(args); local_irq_restore(flags); } -static void rm9k_perfcounter_irq_shutdown(unsigned int irq) +static void rm9k_perfcounter_irq_shutdown(struct irq_data *d) { - on_each_cpu(local_rm9k_perfcounter_irq_shutdown, (void *) irq, 1); + on_each_cpu(local_rm9k_perfcounter_irq_shutdown, d, 1); } static struct irq_chip rm9k_irq_controller = { .name = "RM9000", - .ack = mask_rm9k_irq, - .mask = mask_rm9k_irq, - .mask_ack = mask_rm9k_irq, - .unmask = unmask_rm9k_irq, - .eoi = unmask_rm9k_irq + .irq_ack = mask_rm9k_irq, + .irq_mask = mask_rm9k_irq, + .irq_mask_ack = mask_rm9k_irq, + .irq_unmask = unmask_rm9k_irq, + .irq_eoi = unmask_rm9k_irq }; static struct irq_chip rm9k_perfcounter_irq = { .name = "RM9000", - .startup = rm9k_perfcounter_irq_startup, - .shutdown = rm9k_perfcounter_irq_shutdown, - .ack = mask_rm9k_irq, - .mask = mask_rm9k_irq, - .mask_ack = mask_rm9k_irq, - .unmask = unmask_rm9k_irq, + .irq_startup = rm9k_perfcounter_irq_startup, + .irq_shutdown = rm9k_perfcounter_irq_shutdown, + .irq_ack = mask_rm9k_irq, + .irq_mask = mask_rm9k_irq, + .irq_mask_ack = mask_rm9k_irq, + .irq_unmask = unmask_rm9k_irq, }; unsigned int rm9000_perfcount_irq; -- cgit v1.2.3 From a93951c459f49ef30eef88569aa159d6451b400f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:02 +0000 Subject: MIPS: irq_cpu: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2191/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/irq_cpu.c | 46 +++++++++++++++++++++------------------------- 1 file changed, 21 insertions(+), 25 deletions(-) diff --git a/arch/mips/kernel/irq_cpu.c b/arch/mips/kernel/irq_cpu.c index 0262abe09121..fd945c56bc33 100644 --- a/arch/mips/kernel/irq_cpu.c +++ b/arch/mips/kernel/irq_cpu.c @@ -37,42 +37,38 @@ #include <asm/mipsmtregs.h> #include <asm/system.h> -static inline void unmask_mips_irq(unsigned int irq) +static inline void unmask_mips_irq(struct irq_data *d) { - set_c0_status(0x100 << (irq - MIPS_CPU_IRQ_BASE)); + set_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE)); irq_enable_hazard(); } -static inline void mask_mips_irq(unsigned int irq) +static inline void mask_mips_irq(struct irq_data *d) { - clear_c0_status(0x100 << (irq - MIPS_CPU_IRQ_BASE)); + clear_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE)); irq_disable_hazard(); } static struct irq_chip mips_cpu_irq_controller = { .name = "MIPS", - .ack = mask_mips_irq, - .mask = mask_mips_irq, - .mask_ack = mask_mips_irq, - .unmask = unmask_mips_irq, - .eoi = unmask_mips_irq, + .irq_ack = mask_mips_irq, + .irq_mask = mask_mips_irq, + .irq_mask_ack = mask_mips_irq, + .irq_unmask = unmask_mips_irq, + .irq_eoi = unmask_mips_irq, }; /* * Basically the same as above but taking care of all the MT stuff */ -#define unmask_mips_mt_irq unmask_mips_irq -#define mask_mips_mt_irq mask_mips_irq - -static unsigned int mips_mt_cpu_irq_startup(unsigned int irq) +static unsigned int mips_mt_cpu_irq_startup(struct irq_data *d) { unsigned int vpflags = dvpe(); - clear_c0_cause(0x100 << (irq - MIPS_CPU_IRQ_BASE)); + clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE)); evpe(vpflags); - unmask_mips_mt_irq(irq); - + unmask_mips_irq(d); return 0; } @@ -80,22 +76,22 @@ static unsigned int mips_mt_cpu_irq_startup(unsigned int irq) * While we ack the interrupt interrupts are disabled and thus we don't need * to deal with concurrency issues. Same for mips_cpu_irq_end. */ -static void mips_mt_cpu_irq_ack(unsigned int irq) +static void mips_mt_cpu_irq_ack(struct irq_data *d) { unsigned int vpflags = dvpe(); - clear_c0_cause(0x100 << (irq - MIPS_CPU_IRQ_BASE)); + clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE)); evpe(vpflags); - mask_mips_mt_irq(irq); + mask_mips_irq(d); } static struct irq_chip mips_mt_cpu_irq_controller = { .name = "MIPS", - .startup = mips_mt_cpu_irq_startup, - .ack = mips_mt_cpu_irq_ack, - .mask = mask_mips_mt_irq, - .mask_ack = mips_mt_cpu_irq_ack, - .unmask = unmask_mips_mt_irq, - .eoi = unmask_mips_mt_irq, + .irq_startup = mips_mt_cpu_irq_startup, + .irq_ack = mips_mt_cpu_irq_ack, + .irq_mask = mask_mips_irq, + .irq_mask_ack = mips_mt_cpu_irq_ack, + .irq_unmask = unmask_mips_irq, + .irq_eoi = unmask_mips_irq, }; void __init mips_cpu_irq_init(void) -- cgit v1.2.3 From 0e9c4ec61a80a2058a600c9ac8ad3b15574b1201 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:02 +0000 Subject: MIPS: TXx9: Convert core to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2192/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/irq_txx9.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/arch/mips/kernel/irq_txx9.c b/arch/mips/kernel/irq_txx9.c index 95a96f69172d..526e1581549a 100644 --- a/arch/mips/kernel/irq_txx9.c +++ b/arch/mips/kernel/irq_txx9.c @@ -63,9 +63,9 @@ static struct { unsigned char mode; } txx9irq[TXx9_MAX_IR] __read_mostly; -static void txx9_irq_unmask(unsigned int irq) +static void txx9_irq_unmask(struct irq_data *d) { - unsigned int irq_nr = irq - TXX9_IRQ_BASE; + unsigned int irq_nr = d->irq - TXX9_IRQ_BASE; u32 __iomem *ilrp = &txx9_ircptr->ilr[(irq_nr % 16 ) / 2]; int ofs = irq_nr / 16 * 16 + (irq_nr & 1) * 8; @@ -79,9 +79,9 @@ static void txx9_irq_unmask(unsigned int irq) #endif } -static inline void txx9_irq_mask(unsigned int irq) +static inline void txx9_irq_mask(struct irq_data *d) { - unsigned int irq_nr = irq - TXX9_IRQ_BASE; + unsigned int irq_nr = d->irq - TXX9_IRQ_BASE; u32 __iomem *ilrp = &txx9_ircptr->ilr[(irq_nr % 16) / 2]; int ofs = irq_nr / 16 * 16 + (irq_nr & 1) * 8; @@ -99,19 +99,19 @@ static inline void txx9_irq_mask(unsigned int irq) #endif } -static void txx9_irq_mask_ack(unsigned int irq) +static void txx9_irq_mask_ack(struct irq_data *d) { - unsigned int irq_nr = irq - TXX9_IRQ_BASE; + unsigned int irq_nr = d->irq - TXX9_IRQ_BASE; - txx9_irq_mask(irq); + txx9_irq_mask(d); /* clear edge detection */ if (unlikely(TXx9_IRCR_EDGE(txx9irq[irq_nr].mode))) __raw_writel(TXx9_IRSCR_EIClrE | irq_nr, &txx9_ircptr->scr); } -static int txx9_irq_set_type(unsigned int irq, unsigned int flow_type) +static int txx9_irq_set_type(struct irq_data *d, unsigned int flow_type) { - unsigned int irq_nr = irq - TXX9_IRQ_BASE; + unsigned int irq_nr = d->irq - TXX9_IRQ_BASE; u32 cr; u32 __iomem *crp; int ofs; @@ -139,11 +139,11 @@ static int txx9_irq_set_type(unsigned int irq, unsigned int flow_type) static struct irq_chip txx9_irq_chip = { .name = "TXX9", - .ack = txx9_irq_mask_ack, - .mask = txx9_irq_mask, - .mask_ack = txx9_irq_mask_ack, - .unmask = txx9_irq_unmask, - .set_type = txx9_irq_set_type, + .irq_ack = txx9_irq_mask_ack, + .irq_mask = txx9_irq_mask, + .irq_mask_ack = txx9_irq_mask_ack, + .irq_unmask = txx9_irq_unmask, + .irq_set_type = txx9_irq_set_type, }; void __init txx9_irq_init(unsigned long baseaddr) -- cgit v1.2.3 From 2a2b2212986a4072d11e521a63672e3219173437 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:03 +0000 Subject: MIPS: SMTC: Use irq_data in smtc_forward_irq() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2193/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/smtc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c index 39c08254b0f1..14c64235a24b 100644 --- a/arch/mips/kernel/smtc.c +++ b/arch/mips/kernel/smtc.c @@ -679,6 +679,7 @@ void smtc_set_irq_affinity(unsigned int irq, cpumask_t affinity) void smtc_forward_irq(unsigned int irq) { + struct irq_data *d = irq_get_irq_data(irq); int target; /* @@ -692,7 +693,7 @@ void smtc_forward_irq(unsigned int irq) * and efficiency, we just pick the easiest one to find. */ - target = cpumask_first(irq_desc[irq].affinity); + target = cpumask_first(d->affinity); /* * We depend on the platform code to have correctly processed -- cgit v1.2.3 From 930cd54b3bd78e52991a89b39b5ef58355ad2b6d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:04 +0000 Subject: MIPS: SMTC: Cleanup the hook mess and use irq_data Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2194/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/include/asm/irq.h | 60 +++++++++++++++++++++++---------------------- arch/mips/kernel/irq.c | 6 ++--- arch/mips/kernel/smtc.c | 12 ++++----- 3 files changed, 39 insertions(+), 39 deletions(-) diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h index bdc8b8c18328..0ec01294b063 100644 --- a/arch/mips/include/asm/irq.h +++ b/arch/mips/include/asm/irq.h @@ -57,7 +57,7 @@ static inline void smtc_im_ack_irq(unsigned int irq) extern int plat_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity, bool force); -extern void smtc_forward_irq(unsigned int irq); +extern void smtc_forward_irq(struct irq_data *d); /* * IRQ affinity hook invoked at the beginning of interrupt dispatch @@ -70,51 +70,53 @@ extern void smtc_forward_irq(unsigned int irq); * cpumask implementations, this version is optimistically assuming * that cpumask.h macro overhead is reasonable during interrupt dispatch. */ -#define IRQ_AFFINITY_HOOK(irq) \ -do { \ - if (!cpumask_test_cpu(smp_processor_id(), irq_desc[irq].affinity)) {\ - smtc_forward_irq(irq); \ - irq_exit(); \ - return; \ - } \ -} while (0) +static inline int handle_on_other_cpu(unsigned int irq) +{ + struct irq_data *d = irq_get_irq_data(irq); + + if (cpumask_test_cpu(smp_processor_id(), d->affinity)) + return 0; + smtc_forward_irq(d); + return 1; +} #else /* Not doing SMTC affinity */ -#define IRQ_AFFINITY_HOOK(irq) do { } while (0) +static inline int handle_on_other_cpu(unsigned int irq) { return 0; } #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */ #ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP +static inline void smtc_im_backstop(unsigned int irq) +{ + if (irq_hwmask[irq] & 0x0000ff00) + write_c0_tccontext(read_c0_tccontext() & + ~(irq_hwmask[irq] & 0x0000ff00)); +} + /* * Clear interrupt mask handling "backstop" if irq_hwmask * entry so indicates. This implies that the ack() or end() * functions will take over re-enabling the low-level mask. * Otherwise it will be done on return from exception. */ -#define __DO_IRQ_SMTC_HOOK(irq) \ -do { \ - IRQ_AFFINITY_HOOK(irq); \ - if (irq_hwmask[irq] & 0x0000ff00) \ - write_c0_tccontext(read_c0_tccontext() & \ - ~(irq_hwmask[irq] & 0x0000ff00)); \ -} while (0) - -#define __NO_AFFINITY_IRQ_SMTC_HOOK(irq) \ -do { \ - if (irq_hwmask[irq] & 0x0000ff00) \ - write_c0_tccontext(read_c0_tccontext() & \ - ~(irq_hwmask[irq] & 0x0000ff00)); \ -} while (0) +static inline int smtc_handle_on_other_cpu(unsigned int irq) +{ + int ret = handle_on_other_cpu(irq); + + if (!ret) + smtc_im_backstop(irq); + return ret; +} #else -#define __DO_IRQ_SMTC_HOOK(irq) \ -do { \ - IRQ_AFFINITY_HOOK(irq); \ -} while (0) -#define __NO_AFFINITY_IRQ_SMTC_HOOK(irq) do { } while (0) +static inline void smtc_im_backstop(unsigned int irq) { } +static inline int smtc_handle_on_other_cpu(unsigned int irq) +{ + return handle_on_other_cpu(irq); +} #endif diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c index 4f93db58a79e..779b78799ad2 100644 --- a/arch/mips/kernel/irq.c +++ b/arch/mips/kernel/irq.c @@ -183,8 +183,8 @@ void __irq_entry do_IRQ(unsigned int irq) { irq_enter(); check_stack_overflow(); - __DO_IRQ_SMTC_HOOK(irq); - generic_handle_irq(irq); + if (!smtc_handle_on_other_cpu(irq)) + generic_handle_irq(irq); irq_exit(); } @@ -197,7 +197,7 @@ void __irq_entry do_IRQ(unsigned int irq) void __irq_entry do_IRQ_no_affinity(unsigned int irq) { irq_enter(); - __NO_AFFINITY_IRQ_SMTC_HOOK(irq); + smtc_im_backstop(irq); generic_handle_irq(irq); irq_exit(); } diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c index 14c64235a24b..f7e2c7807d7b 100644 --- a/arch/mips/kernel/smtc.c +++ b/arch/mips/kernel/smtc.c @@ -677,9 +677,9 @@ void smtc_set_irq_affinity(unsigned int irq, cpumask_t affinity) */ } -void smtc_forward_irq(unsigned int irq) +void smtc_forward_irq(struct irq_data *d) { - struct irq_data *d = irq_get_irq_data(irq); + unsigned int irq = d->irq; int target; /* @@ -708,12 +708,10 @@ void smtc_forward_irq(unsigned int irq) */ /* If no one is eligible, service locally */ - if (target >= NR_CPUS) { + if (target >= NR_CPUS) do_IRQ_no_affinity(irq); - return; - } - - smtc_send_ipi(target, IRQ_AFFINITY_IPI, irq); + else + smtc_send_ipi(target, IRQ_AFFINITY_IPI, irq); } #endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */ -- cgit v1.2.3 From f8396c17097db5fa6442533000e3e6d30d16dc5d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:05 +0000 Subject: MIPS: Use generic show_interrupts() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2195/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/Kconfig | 1 + arch/mips/kernel/irq.c | 43 ++----------------------------------------- 2 files changed, 3 insertions(+), 41 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 328ed8dbfa04..83aa5fb8e8f1 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -22,6 +22,7 @@ config MIPS select HAVE_DMA_API_DEBUG select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_PROBE + select GENERIC_IRQ_SHOW select HAVE_ARCH_JUMP_LABEL menu "Machine selection" diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c index 779b78799ad2..1b68ebe1b458 100644 --- a/arch/mips/kernel/irq.c +++ b/arch/mips/kernel/irq.c @@ -81,48 +81,9 @@ void ack_bad_irq(unsigned int irq) atomic_t irq_err_count; -/* - * Generic, controller-independent functions: - */ - -int show_interrupts(struct seq_file *p, void *v) +int arch_show_interrupts(struct seq_file *p, int prec) { - int i = *(loff_t *) v, j; - struct irqaction * action; - unsigned long flags; - - if (i == 0) { - seq_printf(p, " "); - for_each_online_cpu(j) - seq_printf(p, "CPU%d ", j); - seq_putc(p, '\n'); - } - - if (i < NR_IRQS) { - raw_spin_lock_irqsave(&irq_desc[i].lock, flags); - action = irq_desc[i].action; - if (!action) - goto skip; - seq_printf(p, "%3d: ", i); -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(i)); -#else - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); -#endif - seq_printf(p, " %14s", irq_desc[i].chip->name); - seq_printf(p, " %s", action->name); - - for (action=action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - - seq_putc(p, '\n'); -skip: - raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } else if (i == NR_IRQS) { - seq_putc(p, '\n'); - seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count)); - } + seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count)); return 0; } -- cgit v1.2.3 From 7ec8af9e3441478472954c43462376dd83302e00 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:06 +0000 Subject: MIPS: Loongson: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2196/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/loongson/common/bonito-irq.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/arch/mips/loongson/common/bonito-irq.c b/arch/mips/loongson/common/bonito-irq.c index 2dc2a4cc632a..1549361696ad 100644 --- a/arch/mips/loongson/common/bonito-irq.c +++ b/arch/mips/loongson/common/bonito-irq.c @@ -16,24 +16,22 @@ #include <loongson.h> -static inline void bonito_irq_enable(unsigned int irq) +static inline void bonito_irq_enable(struct irq_data *d) { - LOONGSON_INTENSET = (1 << (irq - LOONGSON_IRQ_BASE)); + LOONGSON_INTENSET = (1 << (d->irq - LOONGSON_IRQ_BASE)); mmiowb(); } -static inline void bonito_irq_disable(unsigned int irq) +static inline void bonito_irq_disable(struct irq_data *d) { - LOONGSON_INTENCLR = (1 << (irq - LOONGSON_IRQ_BASE)); + LOONGSON_INTENCLR = (1 << (d->irq - LOONGSON_IRQ_BASE)); mmiowb(); } static struct irq_chip bonito_irq_type = { - .name = "bonito_irq", - .ack = bonito_irq_disable, - .mask = bonito_irq_disable, - .mask_ack = bonito_irq_disable, - .unmask = bonito_irq_enable, + .name = "bonito_irq", + .irq_mask = bonito_irq_disable, + .irq_unmask = bonito_irq_enable, }; static struct irqaction __maybe_unused dma_timeout_irqaction = { -- cgit v1.2.3 From d7881fbdf866d7d0fc3fd65805b47a837217ba2b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:06 +0000 Subject: MIPS: msp71xx: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2197/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c | 41 ++++++--------- arch/mips/pmc-sierra/msp71xx/msp_irq_per.c | 80 +++++++----------------------- arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c | 18 ++++--- 3 files changed, 46 insertions(+), 93 deletions(-) diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c index e64458a833e2..352f29d9226f 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c @@ -77,7 +77,7 @@ static inline void cic_wmb(void) dummy_read++; } -static inline void unmask_cic_irq(unsigned int irq) +static void unmask_cic_irq(struct irq_data *d) { volatile u32 *cic_msk_reg = CIC_VPE0_MSK_REG; int vpe; @@ -89,18 +89,18 @@ static inline void unmask_cic_irq(unsigned int irq) * Make sure we have IRQ affinity. It may have changed while * we were processing the IRQ. */ - if (!cpumask_test_cpu(smp_processor_id(), irq_desc[irq].affinity)) + if (!cpumask_test_cpu(smp_processor_id(), d->affinity)) return; #endif vpe = get_current_vpe(); LOCK_VPE(flags, mtflags); - cic_msk_reg[vpe] |= (1 << (irq - MSP_CIC_INTBASE)); + cic_msk_reg[vpe] |= (1 << (d->irq - MSP_CIC_INTBASE)); UNLOCK_VPE(flags, mtflags); cic_wmb(); } -static inline void mask_cic_irq(unsigned int irq) +static void mask_cic_irq(struct irq_data *d) { volatile u32 *cic_msk_reg = CIC_VPE0_MSK_REG; int vpe = get_current_vpe(); @@ -108,33 +108,27 @@ static inline void mask_cic_irq(unsigned int irq) unsigned long flags, mtflags; #endif LOCK_VPE(flags, mtflags); - cic_msk_reg[vpe] &= ~(1 << (irq - MSP_CIC_INTBASE)); + cic_msk_reg[vpe] &= ~(1 << (d->irq - MSP_CIC_INTBASE)); UNLOCK_VPE(flags, mtflags); cic_wmb(); } -static inline void msp_cic_irq_ack(unsigned int irq) +static void msp_cic_irq_ack(struct irq_data *d) { - mask_cic_irq(irq); + mask_cic_irq(d); /* * Only really necessary for 18, 16-14 and sometimes 3:0 * (since these can be edge sensitive) but it doesn't * hurt for the others */ - *CIC_STS_REG = (1 << (irq - MSP_CIC_INTBASE)); - smtc_im_ack_irq(irq); -} - -static void msp_cic_irq_end(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) - unmask_cic_irq(irq); + *CIC_STS_REG = (1 << (d->irq - MSP_CIC_INTBASE)); + smtc_im_ack_irq(d->irq); } /*Note: Limiting to VSMP . Not tested in SMTC */ #ifdef CONFIG_MIPS_MT_SMP -static inline int msp_cic_irq_set_affinity(unsigned int irq, - const struct cpumask *cpumask) +static int msp_cic_irq_set_affinity(struct irq_data *d, + const struct cpumask *cpumask, bool force) { int cpu; unsigned long flags; @@ -163,13 +157,12 @@ static inline int msp_cic_irq_set_affinity(unsigned int irq, static struct irq_chip msp_cic_irq_controller = { .name = "MSP_CIC", - .mask = mask_cic_irq, - .mask_ack = msp_cic_irq_ack, - .unmask = unmask_cic_irq, - .ack = msp_cic_irq_ack, - .end = msp_cic_irq_end, + .irq_mask = mask_cic_irq, + .irq_mask_ack = msp_cic_irq_ack, + .irq_unmask = unmask_cic_irq, + .irq_ack = msp_cic_irq_ack, #ifdef CONFIG_MIPS_MT_SMP - .set_affinity = msp_cic_irq_set_affinity, + .irq_set_affinity = msp_cic_irq_set_affinity, #endif }; @@ -220,7 +213,5 @@ void msp_cic_irq_dispatch(void) do_IRQ(ffs(pending) + MSP_CIC_INTBASE - 1); } else{ spurious_interrupt(); - /* Re-enable the CIC cascaded interrupt. */ - irq_desc[MSP_INT_CIC].chip->end(MSP_INT_CIC); } } diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c index 72bcd70d2ddf..f9b9dcdfa9dd 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c @@ -48,100 +48,61 @@ static inline void per_wmb(void) dummy_read++; } -static inline void unmask_per_irq(unsigned int irq) +static inline void unmask_per_irq(struct irq_data *d) { #ifdef CONFIG_SMP unsigned long flags; spin_lock_irqsave(&per_lock, flags); - *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE)); + *PER_INT_MSK_REG |= (1 << (d->irq - MSP_PER_INTBASE)); spin_unlock_irqrestore(&per_lock, flags); #else - *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE)); + *PER_INT_MSK_REG |= (1 << (d->irq - MSP_PER_INTBASE)); #endif per_wmb(); } -static inline void mask_per_irq(unsigned int irq) +static inline void mask_per_irq(struct irq_data *d) { #ifdef CONFIG_SMP unsigned long flags; spin_lock_irqsave(&per_lock, flags); - *PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE)); + *PER_INT_MSK_REG &= ~(1 << (d->irq - MSP_PER_INTBASE)); spin_unlock_irqrestore(&per_lock, flags); #else - *PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE)); + *PER_INT_MSK_REG &= ~(1 << (d->irq - MSP_PER_INTBASE)); #endif per_wmb(); } -static inline void msp_per_irq_enable(unsigned int irq) +static inline void msp_per_irq_ack(struct irq_data *d) { - unmask_per_irq(irq); -} - -static inline void msp_per_irq_disable(unsigned int irq) -{ - mask_per_irq(irq); -} - -static unsigned int msp_per_irq_startup(unsigned int irq) -{ - msp_per_irq_enable(irq); - return 0; -} - -#define msp_per_irq_shutdown msp_per_irq_disable - -static inline void msp_per_irq_ack(unsigned int irq) -{ - mask_per_irq(irq); + mask_per_irq(d); /* * In the PER interrupt controller, only bits 11 and 10 * are write-to-clear, (SPI TX complete, SPI RX complete). * It does nothing for any others. */ - - *PER_INT_STS_REG = (1 << (irq - MSP_PER_INTBASE)); - - /* Re-enable the CIC cascaded interrupt and return */ - irq_desc[MSP_INT_CIC].chip->end(MSP_INT_CIC); -} - -static void msp_per_irq_end(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) - unmask_per_irq(irq); + *PER_INT_STS_REG = (1 << (d->irq - MSP_PER_INTBASE)); } #ifdef CONFIG_SMP -static inline int msp_per_irq_set_affinity(unsigned int irq, - const struct cpumask *affinity) +static int msp_per_irq_set_affinity(struct irq_data *d, + const struct cpumask *affinity, bool force) { - unsigned long flags; - /* - * Calls to ack, end, startup, enable are spinlocked in setup_irq and - * __do_IRQ.Callers of this function do not spinlock,so we need to - * do so ourselves. - */ - raw_spin_lock_irqsave(&irq_desc[irq].lock, flags); - msp_per_irq_enable(irq); - raw_spin_unlock_irqrestore(&irq_desc[irq].lock, flags); + /* WTF is this doing ????? */ + unmask_per_irq(d); return 0; - } #endif static struct irq_chip msp_per_irq_controller = { .name = "MSP_PER", - .startup = msp_per_irq_startup, - .shutdown = msp_per_irq_shutdown, - .enable = msp_per_irq_enable, - .disable = msp_per_irq_disable, + .irq_enable = unmask_per_irq. + .irq_disable = mask_per_irq, + .irq_ack = msp_per_irq_ack, #ifdef CONFIG_SMP - .set_affinity = msp_per_irq_set_affinity, + .irq_set_affinity = msp_per_irq_set_affinity, #endif - .ack = msp_per_irq_ack, - .end = msp_per_irq_end, }; void __init msp_per_irq_init(void) @@ -152,10 +113,7 @@ void __init msp_per_irq_init(void) *PER_INT_STS_REG = 0xFFFFFFFF; /* initialize all the IRQ descriptors */ for (i = MSP_PER_INTBASE; i < MSP_PER_INTBASE + 32; i++) { - irq_desc[i].status = IRQ_DISABLED; - irq_desc[i].action = NULL; - irq_desc[i].depth = 1; - irq_desc[i].chip = &msp_per_irq_controller; + irq_set_chip(i, &msp_per_irq_controller); #ifdef CONFIG_MIPS_MT_SMTC irq_hwmask[i] = C_IRQ4; #endif @@ -173,7 +131,5 @@ void msp_per_irq_dispatch(void) do_IRQ(ffs(pending) + MSP_PER_INTBASE - 1); } else { spurious_interrupt(); - /* Re-enable the CIC cascaded interrupt and return */ - irq_desc[MSP_INT_CIC].chip->end(MSP_INT_CIC); } } diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c index 61f390232346..8f51e4adc438 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c @@ -21,8 +21,10 @@ #include <msp_slp_int.h> #include <msp_regs.h> -static inline void unmask_msp_slp_irq(unsigned int irq) +static inline void unmask_msp_slp_irq(struct irq_data *d) { + unsigned int irq = d->irq; + /* check for PER interrupt range */ if (irq < MSP_PER_INTBASE) *SLP_INT_MSK_REG |= (1 << (irq - MSP_SLP_INTBASE)); @@ -30,8 +32,10 @@ static inline void unmask_msp_slp_irq(unsigned int irq) *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE)); } -static inline void mask_msp_slp_irq(unsigned int irq) +static inline void mask_msp_slp_irq(struct irq_data *d) { + unsigned int irq = d->irq; + /* check for PER interrupt range */ if (irq < MSP_PER_INTBASE) *SLP_INT_MSK_REG &= ~(1 << (irq - MSP_SLP_INTBASE)); @@ -43,8 +47,10 @@ static inline void mask_msp_slp_irq(unsigned int irq) * While we ack the interrupt interrupts are disabled and thus we don't need * to deal with concurrency issues. Same for msp_slp_irq_end. */ -static inline void ack_msp_slp_irq(unsigned int irq) +static inline void ack_msp_slp_irq(struct irq_data *d) { + unsigned int irq = d->irq; + /* check for PER interrupt range */ if (irq < MSP_PER_INTBASE) *SLP_INT_STS_REG = (1 << (irq - MSP_SLP_INTBASE)); @@ -54,9 +60,9 @@ static inline void ack_msp_slp_irq(unsigned int irq) static struct irq_chip msp_slp_irq_controller = { .name = "MSP_SLP", - .ack = ack_msp_slp_irq, - .mask = mask_msp_slp_irq, - .unmask = unmask_msp_slp_irq, + .irq_ack = ack_msp_slp_irq, + .irq_mask = mask_msp_slp_irq, + .irq_unmask = unmask_msp_slp_irq, }; void __init msp_slp_irq_init(void) -- cgit v1.2.3 From 8fcc34e5ce0a94157349db5a060fbd3656100c6b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:08 +0000 Subject: MIPS: PNX83xx: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2198/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/pnx833x/common/interrupts.c | 98 ++++++----------------------------- 1 file changed, 16 insertions(+), 82 deletions(-) diff --git a/arch/mips/pnx833x/common/interrupts.c b/arch/mips/pnx833x/common/interrupts.c index 941916f8aaff..b226bcb0a2f4 100644 --- a/arch/mips/pnx833x/common/interrupts.c +++ b/arch/mips/pnx833x/common/interrupts.c @@ -152,10 +152,6 @@ static inline void pnx833x_hard_disable_pic_irq(unsigned int irq) PNX833X_PIC_INT_REG(irq) = 0; } -static int irqflags[PNX833X_PIC_NUM_IRQ]; /* initialized by zeroes */ -#define IRQFLAG_STARTED 1 -#define IRQFLAG_DISABLED 2 - static DEFINE_RAW_SPINLOCK(pnx833x_irq_lock); static unsigned int pnx833x_startup_pic_irq(unsigned int irq) @@ -164,108 +160,54 @@ static unsigned int pnx833x_startup_pic_irq(unsigned int irq) unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE; raw_spin_lock_irqsave(&pnx833x_irq_lock, flags); - - irqflags[pic_irq] = IRQFLAG_STARTED; /* started, not disabled */ pnx833x_hard_enable_pic_irq(pic_irq); - raw_spin_unlock_irqrestore(&pnx833x_irq_lock, flags); return 0; } -static void pnx833x_shutdown_pic_irq(unsigned int irq) -{ - unsigned long flags; - unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE; - - raw_spin_lock_irqsave(&pnx833x_irq_lock, flags); - - irqflags[pic_irq] = 0; /* not started */ - pnx833x_hard_disable_pic_irq(pic_irq); - - raw_spin_unlock_irqrestore(&pnx833x_irq_lock, flags); -} - -static void pnx833x_enable_pic_irq(unsigned int irq) +static void pnx833x_enable_pic_irq(struct irq_data *d) { unsigned long flags; - unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE; + unsigned int pic_irq = d->irq - PNX833X_PIC_IRQ_BASE; raw_spin_lock_irqsave(&pnx833x_irq_lock, flags); - - irqflags[pic_irq] &= ~IRQFLAG_DISABLED; - if (irqflags[pic_irq] == IRQFLAG_STARTED) - pnx833x_hard_enable_pic_irq(pic_irq); - + pnx833x_hard_enable_pic_irq(pic_irq); raw_spin_unlock_irqrestore(&pnx833x_irq_lock, flags); } -static void pnx833x_disable_pic_irq(unsigned int irq) +static void pnx833x_disable_pic_irq(struct irq_data *d) { unsigned long flags; - unsigned int pic_irq = irq - PNX833X_PIC_IRQ_BASE; + unsigned int pic_irq = d->irq - PNX833X_PIC_IRQ_BASE; raw_spin_lock_irqsave(&pnx833x_irq_lock, flags); - - irqflags[pic_irq] |= IRQFLAG_DISABLED; pnx833x_hard_disable_pic_irq(pic_irq); - raw_spin_unlock_irqrestore(&pnx833x_irq_lock, flags); } -static void pnx833x_ack_pic_irq(unsigned int irq) -{ -} - -static void pnx833x_end_pic_irq(unsigned int irq) -{ -} - static DEFINE_RAW_SPINLOCK(pnx833x_gpio_pnx833x_irq_lock); -static unsigned int pnx833x_startup_gpio_irq(unsigned int irq) -{ - int pin = irq - PNX833X_GPIO_IRQ_BASE; - unsigned long flags; - raw_spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags); - pnx833x_gpio_enable_irq(pin); - raw_spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags); - return 0; -} - -static void pnx833x_enable_gpio_irq(unsigned int irq) +static void pnx833x_enable_gpio_irq(struct irq_data *d) { - int pin = irq - PNX833X_GPIO_IRQ_BASE; + int pin = d->irq - PNX833X_GPIO_IRQ_BASE; unsigned long flags; raw_spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags); pnx833x_gpio_enable_irq(pin); raw_spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags); } -static void pnx833x_disable_gpio_irq(unsigned int irq) +static void pnx833x_disable_gpio_irq(struct irq_data *d) { - int pin = irq - PNX833X_GPIO_IRQ_BASE; + int pin = d->irq - PNX833X_GPIO_IRQ_BASE; unsigned long flags; raw_spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags); pnx833x_gpio_disable_irq(pin); raw_spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags); } -static void pnx833x_ack_gpio_irq(unsigned int irq) -{ -} - -static void pnx833x_end_gpio_irq(unsigned int irq) -{ - int pin = irq - PNX833X_GPIO_IRQ_BASE; - unsigned long flags; - raw_spin_lock_irqsave(&pnx833x_gpio_pnx833x_irq_lock, flags); - pnx833x_gpio_clear_irq(pin); - raw_spin_unlock_irqrestore(&pnx833x_gpio_pnx833x_irq_lock, flags); -} - -static int pnx833x_set_type_gpio_irq(unsigned int irq, unsigned int flow_type) +static int pnx833x_set_type_gpio_irq(struct irq_data *d, unsigned int flow_type) { - int pin = irq - PNX833X_GPIO_IRQ_BASE; + int pin = d->irq - PNX833X_GPIO_IRQ_BASE; int gpio_mode; switch (flow_type) { @@ -296,23 +238,15 @@ static int pnx833x_set_type_gpio_irq(unsigned int irq, unsigned int flow_type) static struct irq_chip pnx833x_pic_irq_type = { .name = "PNX-PIC", - .startup = pnx833x_startup_pic_irq, - .shutdown = pnx833x_shutdown_pic_irq, - .enable = pnx833x_enable_pic_irq, - .disable = pnx833x_disable_pic_irq, - .ack = pnx833x_ack_pic_irq, - .end = pnx833x_end_pic_irq + .irq_enable = pnx833x_enable_pic_irq, + .irq_disable = pnx833x_disable_pic_irq, }; static struct irq_chip pnx833x_gpio_irq_type = { .name = "PNX-GPIO", - .startup = pnx833x_startup_gpio_irq, - .shutdown = pnx833x_disable_gpio_irq, - .enable = pnx833x_enable_gpio_irq, - .disable = pnx833x_disable_gpio_irq, - .ack = pnx833x_ack_gpio_irq, - .end = pnx833x_end_gpio_irq, - .set_type = pnx833x_set_type_gpio_irq + .irq_enable = pnx833x_enable_gpio_irq, + .irq_disable = pnx833x_disable_gpio_irq, + .irq_set_type = pnx833x_set_type_gpio_irq, }; void __init arch_init_irq(void) -- cgit v1.2.3 From 0007b9bdbef801a4f177899fa557997d2f06c36d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:09 +0000 Subject: MIPS: PNX8550: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2199/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/pnx8550/common/int.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/mips/pnx8550/common/int.c b/arch/mips/pnx8550/common/int.c index cfed5051dc6d..dbdc35c3531d 100644 --- a/arch/mips/pnx8550/common/int.c +++ b/arch/mips/pnx8550/common/int.c @@ -114,8 +114,10 @@ static inline void unmask_gic_int(unsigned int irq_nr) PNX8550_GIC_REQ(irq_nr) = (1<<26 | 1<<16) | (1<<28) | gic_prio[irq_nr]; } -static inline void mask_irq(unsigned int irq_nr) +static inline void mask_irq(struct irq_data *d) { + unsigned int irq_nr = d->irq; + if ((PNX8550_INT_CP0_MIN <= irq_nr) && (irq_nr <= PNX8550_INT_CP0_MAX)) { modify_cp0_intmask(1 << irq_nr, 0); } else if ((PNX8550_INT_GIC_MIN <= irq_nr) && @@ -129,8 +131,10 @@ static inline void mask_irq(unsigned int irq_nr) } } -static inline void unmask_irq(unsigned int irq_nr) +static inline void unmask_irq(struct irq_data *d) { + unsigned int irq_nr = d->irq; + if ((PNX8550_INT_CP0_MIN <= irq_nr) && (irq_nr <= PNX8550_INT_CP0_MAX)) { modify_cp0_intmask(0, 1 << irq_nr); } else if ((PNX8550_INT_GIC_MIN <= irq_nr) && @@ -157,10 +161,8 @@ int pnx8550_set_gic_priority(int irq, int priority) static struct irq_chip level_irq_type = { .name = "PNX Level IRQ", - .ack = mask_irq, - .mask = mask_irq, - .mask_ack = mask_irq, - .unmask = unmask_irq, + .irq_mask = mask_irq, + .irq_unmask = unmask_irq, }; static struct irqaction gic_action = { @@ -180,10 +182,8 @@ void __init arch_init_irq(void) int i; int configPR; - for (i = 0; i < PNX8550_INT_CP0_TOTINT; i++) { + for (i = 0; i < PNX8550_INT_CP0_TOTINT; i++) set_irq_chip_and_handler(i, &level_irq_type, handle_level_irq); - mask_irq(i); /* mask the irq just in case */ - } /* init of GIC/IPC interrupts */ /* should be done before cp0 since cp0 init enables the GIC int */ -- cgit v1.2.3 From 2f8d36e7112e79ea5e325463f18386e83b5c447c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:09 +0000 Subject: MIPS: PowerTV: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2200/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/powertv/asic/irq_asic.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/mips/powertv/asic/irq_asic.c b/arch/mips/powertv/asic/irq_asic.c index e55382434155..6f1c8ef6a719 100644 --- a/arch/mips/powertv/asic/irq_asic.c +++ b/arch/mips/powertv/asic/irq_asic.c @@ -21,9 +21,10 @@ #include <asm/mach-powertv/asic_regs.h> -static inline void unmask_asic_irq(unsigned int irq) +static inline void unmask_asic_irq(struct irq_data *d) { unsigned long enable_bit; + unsigned int irq = d->irq; enable_bit = (1 << (irq & 0x1f)); @@ -45,9 +46,10 @@ static inline void unmask_asic_irq(unsigned int irq) } } -static inline void mask_asic_irq(unsigned int irq) +static inline void mask_asic_irq(struct irq_data *d) { unsigned long disable_mask; + unsigned int irq = d->irq; disable_mask = ~(1 << (irq & 0x1f)); @@ -71,11 +73,8 @@ static inline void mask_asic_irq(unsigned int irq) static struct irq_chip asic_irq_chip = { .name = "ASIC Level", - .ack = mask_asic_irq, - .mask = mask_asic_irq, - .mask_ack = mask_asic_irq, - .unmask = unmask_asic_irq, - .eoi = unmask_asic_irq, + .irq_mask = mask_asic_irq, + .irq_unmask = unmask_asic_irq, }; void __init asic_irq_init(void) -- cgit v1.2.3 From efb02da52fe20172acb13f82f12ba36bed690bdc Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:10 +0000 Subject: MIPS: RB532: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2201/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/rb532/irq.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/arch/mips/rb532/irq.c b/arch/mips/rb532/irq.c index ea6cec3c1e0d..b32a768da894 100644 --- a/arch/mips/rb532/irq.c +++ b/arch/mips/rb532/irq.c @@ -111,10 +111,10 @@ static inline void ack_local_irq(unsigned int ip) clear_c0_cause(ipnum); } -static void rb532_enable_irq(unsigned int irq_nr) +static void rb532_enable_irq(struct irq_data *d) { + unsigned int group, intr_bit, irq_nr = d->irq; int ip = irq_nr - GROUP0_IRQ_BASE; - unsigned int group, intr_bit; volatile unsigned int *addr; if (ip < 0) @@ -132,10 +132,10 @@ static void rb532_enable_irq(unsigned int irq_nr) } } -static void rb532_disable_irq(unsigned int irq_nr) +static void rb532_disable_irq(struct irq_data *d) { + unsigned int group, intr_bit, mask, irq_nr = d->irq; int ip = irq_nr - GROUP0_IRQ_BASE; - unsigned int group, intr_bit, mask; volatile unsigned int *addr; if (ip < 0) { @@ -163,18 +163,18 @@ static void rb532_disable_irq(unsigned int irq_nr) } } -static void rb532_mask_and_ack_irq(unsigned int irq_nr) +static void rb532_mask_and_ack_irq(struct irq_data *d) { - rb532_disable_irq(irq_nr); - ack_local_irq(group_to_ip(irq_to_group(irq_nr))); + rb532_disable_irq(d); + ack_local_irq(group_to_ip(irq_to_group(d->irq))); } -static int rb532_set_type(unsigned int irq_nr, unsigned type) +static int rb532_set_type(struct irq_data *d, unsigned type) { - int gpio = irq_nr - GPIO_MAPPED_IRQ_BASE; - int group = irq_to_group(irq_nr); + int gpio = d->irq - GPIO_MAPPED_IRQ_BASE; + int group = irq_to_group(d->irq); - if (group != GPIO_MAPPED_IRQ_GROUP || irq_nr > (GROUP4_IRQ_BASE + 13)) + if (group != GPIO_MAPPED_IRQ_GROUP || d->irq > (GROUP4_IRQ_BASE + 13)) return (type == IRQ_TYPE_LEVEL_HIGH) ? 0 : -EINVAL; switch (type) { @@ -193,11 +193,11 @@ static int rb532_set_type(unsigned int irq_nr, unsigned type) static struct irq_chip rc32434_irq_type = { .name = "RB532", - .ack = rb532_disable_irq, - .mask = rb532_disable_irq, - .mask_ack = rb532_mask_and_ack_irq, - .unmask = rb532_enable_irq, - .set_type = rb532_set_type, + .irq_ack = rb532_disable_irq, + .irq_mask = rb532_disable_irq, + .irq_mask_ack = rb532_mask_and_ack_irq, + .irq_unmask = rb532_enable_irq, + .irq_set_type = rb532_set_type, }; void __init arch_init_irq(void) -- cgit v1.2.3 From 9458ea567a72ebd3852c2d764d32c0f2fb61d0df Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:11 +0000 Subject: MIPS: IP22/IP28: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2202/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/sgi-ip22/ip22-int.c | 60 +++++++++++++++++++------------------------ 1 file changed, 26 insertions(+), 34 deletions(-) diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c index 383f11d7f442..e6e64750e90a 100644 --- a/arch/mips/sgi-ip22/ip22-int.c +++ b/arch/mips/sgi-ip22/ip22-int.c @@ -31,88 +31,80 @@ static char lc3msk_to_irqnr[256]; extern int ip22_eisa_init(void); -static void enable_local0_irq(unsigned int irq) +static void enable_local0_irq(struct irq_data *d) { /* don't allow mappable interrupt to be enabled from setup_irq, * we have our own way to do so */ - if (irq != SGI_MAP_0_IRQ) - sgint->imask0 |= (1 << (irq - SGINT_LOCAL0)); + if (d->irq != SGI_MAP_0_IRQ) + sgint->imask0 |= (1 << (d->irq - SGINT_LOCAL0)); } -static void disable_local0_irq(unsigned int irq) +static void disable_local0_irq(struct irq_data *d) { - sgint->imask0 &= ~(1 << (irq - SGINT_LOCAL0)); + sgint->imask0 &= ~(1 << (d->irq - SGINT_LOCAL0)); } static struct irq_chip ip22_local0_irq_type = { .name = "IP22 local 0", - .ack = disable_local0_irq, - .mask = disable_local0_irq, - .mask_ack = disable_local0_irq, - .unmask = enable_local0_irq, + .irq_mask = disable_local0_irq, + .irq_unmask = enable_local0_irq, }; -static void enable_local1_irq(unsigned int irq) +static void enable_local1_irq(struct irq_data *d) { /* don't allow mappable interrupt to be enabled from setup_irq, * we have our own way to do so */ - if (irq != SGI_MAP_1_IRQ) - sgint->imask1 |= (1 << (irq - SGINT_LOCAL1)); + if (d->irq != SGI_MAP_1_IRQ) + sgint->imask1 |= (1 << (d->irq - SGINT_LOCAL1)); } -static void disable_local1_irq(unsigned int irq) +static void disable_local1_irq(struct irq_data *d) { - sgint->imask1 &= ~(1 << (irq - SGINT_LOCAL1)); + sgint->imask1 &= ~(1 << (d->irq - SGINT_LOCAL1)); } static struct irq_chip ip22_local1_irq_type = { .name = "IP22 local 1", - .ack = disable_local1_irq, - .mask = disable_local1_irq, - .mask_ack = disable_local1_irq, - .unmask = enable_local1_irq, + .irq_mask = disable_local1_irq, + .irq_unmask = enable_local1_irq, }; -static void enable_local2_irq(unsigned int irq) +static void enable_local2_irq(struct irq_data *d) { sgint->imask0 |= (1 << (SGI_MAP_0_IRQ - SGINT_LOCAL0)); - sgint->cmeimask0 |= (1 << (irq - SGINT_LOCAL2)); + sgint->cmeimask0 |= (1 << (d->irq - SGINT_LOCAL2)); } -static void disable_local2_irq(unsigned int irq) +static void disable_local2_irq(struct irq_data *d) { - sgint->cmeimask0 &= ~(1 << (irq - SGINT_LOCAL2)); + sgint->cmeimask0 &= ~(1 << (d->irq - SGINT_LOCAL2)); if (!sgint->cmeimask0) sgint->imask0 &= ~(1 << (SGI_MAP_0_IRQ - SGINT_LOCAL0)); } static struct irq_chip ip22_local2_irq_type = { .name = "IP22 local 2", - .ack = disable_local2_irq, - .mask = disable_local2_irq, - .mask_ack = disable_local2_irq, - .unmask = enable_local2_irq, + .irq_mask = disable_local2_irq, + .irq_unmask = enable_local2_irq, }; -static void enable_local3_irq(unsigned int irq) +static void enable_local3_irq(struct irq_data *d) { sgint->imask1 |= (1 << (SGI_MAP_1_IRQ - SGINT_LOCAL1)); - sgint->cmeimask1 |= (1 << (irq - SGINT_LOCAL3)); + sgint->cmeimask1 |= (1 << (d->irq - SGINT_LOCAL3)); } -static void disable_local3_irq(unsigned int irq) +static void disable_local3_irq(struct irq_data *d) { - sgint->cmeimask1 &= ~(1 << (irq - SGINT_LOCAL3)); + sgint->cmeimask1 &= ~(1 << (d->irq - SGINT_LOCAL3)); if (!sgint->cmeimask1) sgint->imask1 &= ~(1 << (SGI_MAP_1_IRQ - SGINT_LOCAL1)); } static struct irq_chip ip22_local3_irq_type = { .name = "IP22 local 3", - .ack = disable_local3_irq, - .mask = disable_local3_irq, - .mask_ack = disable_local3_irq, - .unmask = enable_local3_irq, + .irq_mask = disable_local3_irq, + .irq_unmask = enable_local3_irq, }; static void indy_local0_irqdispatch(void) -- cgit v1.2.3 From 301218df9c07e675e1c5497c818df13bb7fc38b1 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:12 +0000 Subject: MIPS: IP27: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2203/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/sgi-ip27/ip27-irq.c | 38 ++++++++++++++++++-------------------- arch/mips/sgi-ip27/ip27-timer.c | 11 ++++------- 2 files changed, 22 insertions(+), 27 deletions(-) diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c index 6a123ea72de5..f2d09d7700dd 100644 --- a/arch/mips/sgi-ip27/ip27-irq.c +++ b/arch/mips/sgi-ip27/ip27-irq.c @@ -240,7 +240,7 @@ static int intr_disconnect_level(int cpu, int bit) } /* Startup one of the (PCI ...) IRQs routes over a bridge. */ -static unsigned int startup_bridge_irq(unsigned int irq) +static unsigned int startup_bridge_irq(struct irq_data *d) { struct bridge_controller *bc; bridgereg_t device; @@ -248,16 +248,16 @@ static unsigned int startup_bridge_irq(unsigned int irq) int pin, swlevel; cpuid_t cpu; - pin = SLOT_FROM_PCI_IRQ(irq); - bc = IRQ_TO_BRIDGE(irq); + pin = SLOT_FROM_PCI_IRQ(d->irq); + bc = IRQ_TO_BRIDGE(d->irq); bridge = bc->base; - pr_debug("bridge_startup(): irq= 0x%x pin=%d\n", irq, pin); + pr_debug("bridge_startup(): irq= 0x%x pin=%d\n", d->irq, pin); /* * "map" irq to a swlevel greater than 6 since the first 6 bits * of INT_PEND0 are taken */ - swlevel = find_level(&cpu, irq); + swlevel = find_level(&cpu, d->irq); bridge->b_int_addr[pin].addr = (0x20000 | swlevel | (bc->nasid << 8)); bridge->b_int_enable |= (1 << pin); bridge->b_int_enable |= 0x7ffffe00; /* more stuff in int_enable */ @@ -288,53 +288,51 @@ static unsigned int startup_bridge_irq(unsigned int irq) } /* Shutdown one of the (PCI ...) IRQs routes over a bridge. */ -static void shutdown_bridge_irq(unsigned int irq) +static void shutdown_bridge_irq(struct irq_data *d) { - struct bridge_controller *bc = IRQ_TO_BRIDGE(irq); + struct bridge_controller *bc = IRQ_TO_BRIDGE(d->irq); bridge_t *bridge = bc->base; int pin, swlevel; cpuid_t cpu; - pr_debug("bridge_shutdown: irq 0x%x\n", irq); - pin = SLOT_FROM_PCI_IRQ(irq); + pr_debug("bridge_shutdown: irq 0x%x\n", d->irq); + pin = SLOT_FROM_PCI_IRQ(d->irq); /* * map irq to a swlevel greater than 6 since the first 6 bits * of INT_PEND0 are taken */ - swlevel = find_level(&cpu, irq); + swlevel = find_level(&cpu, d->irq); intr_disconnect_level(cpu, swlevel); bridge->b_int_enable &= ~(1 << pin); bridge->b_wid_tflush; } -static inline void enable_bridge_irq(unsigned int irq) +static inline void enable_bridge_irq(struct irq_data *d) { cpuid_t cpu; int swlevel; - swlevel = find_level(&cpu, irq); /* Criminal offence */ + swlevel = find_level(&cpu, d->irq); /* Criminal offence */ intr_connect_level(cpu, swlevel); } -static inline void disable_bridge_irq(unsigned int irq) +static inline void disable_bridge_irq(struct irq_data *d) { cpuid_t cpu; int swlevel; - swlevel = find_level(&cpu, irq); /* Criminal offence */ + swlevel = find_level(&cpu, d->irq); /* Criminal offence */ intr_disconnect_level(cpu, swlevel); } static struct irq_chip bridge_irq_type = { .name = "bridge", - .startup = startup_bridge_irq, - .shutdown = shutdown_bridge_irq, - .ack = disable_bridge_irq, - .mask = disable_bridge_irq, - .mask_ack = disable_bridge_irq, - .unmask = enable_bridge_irq, + .irq_startup = startup_bridge_irq, + .irq_shutdown = shutdown_bridge_irq, + .irq_mask = disable_bridge_irq, + .irq_unmask = enable_bridge_irq, }; void __devinit register_bridge_irq(unsigned int irq) diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c index d6802d6d1f82..c01f558a2a09 100644 --- a/arch/mips/sgi-ip27/ip27-timer.c +++ b/arch/mips/sgi-ip27/ip27-timer.c @@ -36,21 +36,18 @@ #include <asm/sn/sn0/hubio.h> #include <asm/pci/bridge.h> -static void enable_rt_irq(unsigned int irq) +static void enable_rt_irq(struct irq_data *d) { } -static void disable_rt_irq(unsigned int irq) +static void disable_rt_irq(struct irq_data *d) { } static struct irq_chip rt_irq_type = { .name = "SN HUB RT timer", - .ack = disable_rt_irq, - .mask = disable_rt_irq, - .mask_ack = disable_rt_irq, - .unmask = enable_rt_irq, - .eoi = enable_rt_irq, + .irq_mask = disable_rt_irq, + .irq_unmask = enable_rt_irq, }; static int rt_next_event(unsigned long delta, struct clock_event_device *evt) -- cgit v1.2.3 From 4d2796f83600bbba8e7170e847226c377c0305af Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:13 +0000 Subject: MIPS: IP32: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2204/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/sgi-ip32/ip32-irq.c | 134 +++++++++++++----------------------------- 1 file changed, 42 insertions(+), 92 deletions(-) diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c index eb40824b172a..e0a3ce4a8d48 100644 --- a/arch/mips/sgi-ip32/ip32-irq.c +++ b/arch/mips/sgi-ip32/ip32-irq.c @@ -130,70 +130,48 @@ static struct irqaction cpuerr_irq = { static uint64_t crime_mask; -static inline void crime_enable_irq(unsigned int irq) +static inline void crime_enable_irq(struct irq_data *d) { - unsigned int bit = irq - CRIME_IRQ_BASE; + unsigned int bit = d->irq - CRIME_IRQ_BASE; crime_mask |= 1 << bit; crime->imask = crime_mask; } -static inline void crime_disable_irq(unsigned int irq) +static inline void crime_disable_irq(struct irq_data *d) { - unsigned int bit = irq - CRIME_IRQ_BASE; + unsigned int bit = d->irq - CRIME_IRQ_BASE; crime_mask &= ~(1 << bit); crime->imask = crime_mask; flush_crime_bus(); } -static void crime_level_mask_and_ack_irq(unsigned int irq) -{ - crime_disable_irq(irq); -} - -static void crime_level_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) - crime_enable_irq(irq); -} - static struct irq_chip crime_level_interrupt = { .name = "IP32 CRIME", - .ack = crime_level_mask_and_ack_irq, - .mask = crime_disable_irq, - .mask_ack = crime_level_mask_and_ack_irq, - .unmask = crime_enable_irq, - .end = crime_level_end_irq, + .irq_mask = crime_disable_irq, + .irq_unmask = crime_enable_irq, }; -static void crime_edge_mask_and_ack_irq(unsigned int irq) +static void crime_edge_mask_and_ack_irq(struct irq_data *d) { - unsigned int bit = irq - CRIME_IRQ_BASE; + unsigned int bit = d->irq - CRIME_IRQ_BASE; uint64_t crime_int; /* Edge triggered interrupts must be cleared. */ - crime_int = crime->hard_int; crime_int &= ~(1 << bit); crime->hard_int = crime_int; - crime_disable_irq(irq); -} - -static void crime_edge_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) - crime_enable_irq(irq); + crime_disable_irq(d); } static struct irq_chip crime_edge_interrupt = { .name = "IP32 CRIME", - .ack = crime_edge_mask_and_ack_irq, - .mask = crime_disable_irq, - .mask_ack = crime_edge_mask_and_ack_irq, - .unmask = crime_enable_irq, - .end = crime_edge_end_irq, + .irq_ack = crime_edge_mask_and_ack_irq, + .irq_mask = crime_disable_irq, + .irq_mask_ack = crime_edge_mask_and_ack_irq, + .irq_unmask = crime_enable_irq, }; /* @@ -204,37 +182,28 @@ static struct irq_chip crime_edge_interrupt = { static unsigned long macepci_mask; -static void enable_macepci_irq(unsigned int irq) +static void enable_macepci_irq(struct irq_data *d) { - macepci_mask |= MACEPCI_CONTROL_INT(irq - MACEPCI_SCSI0_IRQ); + macepci_mask |= MACEPCI_CONTROL_INT(d->irq - MACEPCI_SCSI0_IRQ); mace->pci.control = macepci_mask; - crime_mask |= 1 << (irq - CRIME_IRQ_BASE); + crime_mask |= 1 << (d->irq - CRIME_IRQ_BASE); crime->imask = crime_mask; } -static void disable_macepci_irq(unsigned int irq) +static void disable_macepci_irq(struct irq_data *d) { - crime_mask &= ~(1 << (irq - CRIME_IRQ_BASE)); + crime_mask &= ~(1 << (d->irq - CRIME_IRQ_BASE)); crime->imask = crime_mask; flush_crime_bus(); - macepci_mask &= ~MACEPCI_CONTROL_INT(irq - MACEPCI_SCSI0_IRQ); + macepci_mask &= ~MACEPCI_CONTROL_INT(d->irq - MACEPCI_SCSI0_IRQ); mace->pci.control = macepci_mask; flush_mace_bus(); } -static void end_macepci_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_macepci_irq(irq); -} - static struct irq_chip ip32_macepci_interrupt = { .name = "IP32 MACE PCI", - .ack = disable_macepci_irq, - .mask = disable_macepci_irq, - .mask_ack = disable_macepci_irq, - .unmask = enable_macepci_irq, - .end = end_macepci_irq, + .irq_mask = disable_macepci_irq, + .irq_unmask = enable_macepci_irq, }; /* This is used for MACE ISA interrupts. That means bits 4-6 in the @@ -276,13 +245,13 @@ static struct irq_chip ip32_macepci_interrupt = { static unsigned long maceisa_mask; -static void enable_maceisa_irq(unsigned int irq) +static void enable_maceisa_irq(struct irq_data *d) { unsigned int crime_int = 0; - pr_debug("maceisa enable: %u\n", irq); + pr_debug("maceisa enable: %u\n", d->irq); - switch (irq) { + switch (d->irq) { case MACEISA_AUDIO_SW_IRQ ... MACEISA_AUDIO3_MERR_IRQ: crime_int = MACE_AUDIO_INT; break; @@ -296,15 +265,15 @@ static void enable_maceisa_irq(unsigned int irq) pr_debug("crime_int %08x enabled\n", crime_int); crime_mask |= crime_int; crime->imask = crime_mask; - maceisa_mask |= 1 << (irq - MACEISA_AUDIO_SW_IRQ); + maceisa_mask |= 1 << (d->irq - MACEISA_AUDIO_SW_IRQ); mace->perif.ctrl.imask = maceisa_mask; } -static void disable_maceisa_irq(unsigned int irq) +static void disable_maceisa_irq(struct irq_data *d) { unsigned int crime_int = 0; - maceisa_mask &= ~(1 << (irq - MACEISA_AUDIO_SW_IRQ)); + maceisa_mask &= ~(1 << (d->irq - MACEISA_AUDIO_SW_IRQ)); if (!(maceisa_mask & MACEISA_AUDIO_INT)) crime_int |= MACE_AUDIO_INT; if (!(maceisa_mask & MACEISA_MISC_INT)) @@ -318,76 +287,57 @@ static void disable_maceisa_irq(unsigned int irq) flush_mace_bus(); } -static void mask_and_ack_maceisa_irq(unsigned int irq) +static void mask_and_ack_maceisa_irq(struct irq_data *d) { unsigned long mace_int; /* edge triggered */ mace_int = mace->perif.ctrl.istat; - mace_int &= ~(1 << (irq - MACEISA_AUDIO_SW_IRQ)); + mace_int &= ~(1 << (d->irq - MACEISA_AUDIO_SW_IRQ)); mace->perif.ctrl.istat = mace_int; - disable_maceisa_irq(irq); -} - -static void end_maceisa_irq(unsigned irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) - enable_maceisa_irq(irq); + disable_maceisa_irq(d); } static struct irq_chip ip32_maceisa_level_interrupt = { .name = "IP32 MACE ISA", - .ack = disable_maceisa_irq, - .mask = disable_maceisa_irq, - .mask_ack = disable_maceisa_irq, - .unmask = enable_maceisa_irq, - .end = end_maceisa_irq, + .irq_mask = disable_maceisa_irq, + .irq_unmask = enable_maceisa_irq, }; static struct irq_chip ip32_maceisa_edge_interrupt = { .name = "IP32 MACE ISA", - .ack = mask_and_ack_maceisa_irq, - .mask = disable_maceisa_irq, - .mask_ack = mask_and_ack_maceisa_irq, - .unmask = enable_maceisa_irq, - .end = end_maceisa_irq, + .irq_ack = mask_and_ack_maceisa_irq, + .irq_mask = disable_maceisa_irq, + .irq_mask_ack = mask_and_ack_maceisa_irq, + .irq_unmask = enable_maceisa_irq, }; /* This is used for regular non-ISA, non-PCI MACE interrupts. That means * bits 0-3 and 7 in the CRIME register. */ -static void enable_mace_irq(unsigned int irq) +static void enable_mace_irq(struct irq_data *d) { - unsigned int bit = irq - CRIME_IRQ_BASE; + unsigned int bit = d->irq - CRIME_IRQ_BASE; crime_mask |= (1 << bit); crime->imask = crime_mask; } -static void disable_mace_irq(unsigned int irq) +static void disable_mace_irq(struct irq_data *d) { - unsigned int bit = irq - CRIME_IRQ_BASE; + unsigned int bit = d->irq - CRIME_IRQ_BASE; crime_mask &= ~(1 << bit); crime->imask = crime_mask; flush_crime_bus(); } -static void end_mace_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_mace_irq(irq); -} - static struct irq_chip ip32_mace_interrupt = { .name = "IP32 MACE", - .ack = disable_mace_irq, - .mask = disable_mace_irq, - .mask_ack = disable_mace_irq, - .unmask = enable_mace_irq, - .end = end_mace_irq, + .irq_mask = disable_mace_irq, + .irq_unmask = enable_mace_irq, }; static void ip32_unknown_interrupt(void) -- cgit v1.2.3 From d6d5d5c4afd4c8bb4c5e3753a2141e9c3a874629 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:14 +0000 Subject: MIPS: Sibyte: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2205/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/sibyte/bcm1480/irq.c | 55 +++++++++++++++--------------------------- arch/mips/sibyte/sb1250/irq.c | 53 ++++++++++++---------------------------- 2 files changed, 35 insertions(+), 73 deletions(-) diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c index 044bbe462c2c..89e8188a4665 100644 --- a/arch/mips/sibyte/bcm1480/irq.c +++ b/arch/mips/sibyte/bcm1480/irq.c @@ -44,31 +44,10 @@ * for interrupt lines */ - -static void end_bcm1480_irq(unsigned int irq); -static void enable_bcm1480_irq(unsigned int irq); -static void disable_bcm1480_irq(unsigned int irq); -static void ack_bcm1480_irq(unsigned int irq); -#ifdef CONFIG_SMP -static int bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask); -#endif - #ifdef CONFIG_PCI extern unsigned long ht_eoi_space; #endif -static struct irq_chip bcm1480_irq_type = { - .name = "BCM1480-IMR", - .ack = ack_bcm1480_irq, - .mask = disable_bcm1480_irq, - .mask_ack = ack_bcm1480_irq, - .unmask = enable_bcm1480_irq, - .end = end_bcm1480_irq, -#ifdef CONFIG_SMP - .set_affinity = bcm1480_set_affinity -#endif -}; - /* Store the CPU id (not the logical number) */ int bcm1480_irq_owner[BCM1480_NR_IRQS]; @@ -109,12 +88,13 @@ void bcm1480_unmask_irq(int cpu, int irq) } #ifdef CONFIG_SMP -static int bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask) +static int bcm1480_set_affinity(struct irq_data *d, const struct cpumask *mask, + bool force) { + unsigned int irq_dirty, irq = d->irq; int i = 0, old_cpu, cpu, int_on, k; u64 cur_ints; unsigned long flags; - unsigned int irq_dirty; i = cpumask_first(mask); @@ -156,21 +136,25 @@ static int bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask) /*****************************************************************************/ -static void disable_bcm1480_irq(unsigned int irq) +static void disable_bcm1480_irq(struct irq_data *d) { + unsigned int irq = d->irq; + bcm1480_mask_irq(bcm1480_irq_owner[irq], irq); } -static void enable_bcm1480_irq(unsigned int irq) +static void enable_bcm1480_irq(struct irq_data *d) { + unsigned int irq = d->irq; + bcm1480_unmask_irq(bcm1480_irq_owner[irq], irq); } -static void ack_bcm1480_irq(unsigned int irq) +static void ack_bcm1480_irq(struct irq_data *d) { + unsigned int irq_dirty, irq = d->irq; u64 pending; - unsigned int irq_dirty; int k; /* @@ -217,14 +201,15 @@ static void ack_bcm1480_irq(unsigned int irq) bcm1480_mask_irq(bcm1480_irq_owner[irq], irq); } - -static void end_bcm1480_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) { - bcm1480_unmask_irq(bcm1480_irq_owner[irq], irq); - } -} - +static struct irq_chip bcm1480_irq_type = { + .name = "BCM1480-IMR", + .irq_mask_ack = ack_bcm1480_irq, + .irq_mask = disable_bcm1480_irq, + .irq_unmask = enable_bcm1480_irq, +#ifdef CONFIG_SMP + .irq_set_affinity = bcm1480_set_affinity +#endif +}; void __init init_bcm1480_irqs(void) { diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c index 12ac04a658ee..fd269ea8d8a8 100644 --- a/arch/mips/sibyte/sb1250/irq.c +++ b/arch/mips/sibyte/sb1250/irq.c @@ -43,31 +43,10 @@ * for interrupt lines */ - -static void end_sb1250_irq(unsigned int irq); -static void enable_sb1250_irq(unsigned int irq); -static void disable_sb1250_irq(unsigned int irq); -static void ack_sb1250_irq(unsigned int irq); -#ifdef CONFIG_SMP -static int sb1250_set_affinity(unsigned int irq, const struct cpumask *mask); -#endif - #ifdef CONFIG_SIBYTE_HAS_LDT extern unsigned long ldt_eoi_space; #endif -static struct irq_chip sb1250_irq_type = { - .name = "SB1250-IMR", - .ack = ack_sb1250_irq, - .mask = disable_sb1250_irq, - .mask_ack = ack_sb1250_irq, - .unmask = enable_sb1250_irq, - .end = end_sb1250_irq, -#ifdef CONFIG_SMP - .set_affinity = sb1250_set_affinity -#endif -}; - /* Store the CPU id (not the logical number) */ int sb1250_irq_owner[SB1250_NR_IRQS]; @@ -102,9 +81,11 @@ void sb1250_unmask_irq(int cpu, int irq) } #ifdef CONFIG_SMP -static int sb1250_set_affinity(unsigned int irq, const struct cpumask *mask) +static int sb1250_set_affinity(struct irq_data *d, const struct cpumask *mask, + bool force) { int i = 0, old_cpu, cpu, int_on; + unsigned int irq = d->irq; u64 cur_ints; unsigned long flags; @@ -142,21 +123,17 @@ static int sb1250_set_affinity(unsigned int irq, const struct cpumask *mask) } #endif -/*****************************************************************************/ - -static void disable_sb1250_irq(unsigned int irq) +static void enable_sb1250_irq(struct irq_data *d) { - sb1250_mask_irq(sb1250_irq_owner[irq], irq); -} + unsigned int irq = d->irq; -static void enable_sb1250_irq(unsigned int irq) -{ sb1250_unmask_irq(sb1250_irq_owner[irq], irq); } -static void ack_sb1250_irq(unsigned int irq) +static void ack_sb1250_irq(struct irq_data *d) { + unsigned int irq = d->irq; #ifdef CONFIG_SIBYTE_HAS_LDT u64 pending; @@ -199,14 +176,14 @@ static void ack_sb1250_irq(unsigned int irq) sb1250_mask_irq(sb1250_irq_owner[irq], irq); } - -static void end_sb1250_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) { - sb1250_unmask_irq(sb1250_irq_owner[irq], irq); - } -} - +static struct irq_chip sb1250_irq_type = { + .name = "SB1250-IMR", + .irq_mask_ack = ack_sb1250_irq, + .irq_unmask = enable_sb1250_irq, +#ifdef CONFIG_SMP + .irq_set_affinity = sb1250_set_affinity +#endif +}; void __init init_sb1250_irqs(void) { -- cgit v1.2.3 From 0b888c7f3a0396cfe59116575a35cdcd166fd515 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:15 +0000 Subject: MIPS: SNI: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2206/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/sni/a20r.c | 23 ++++++----------------- arch/mips/sni/pcimt.c | 21 ++++++--------------- arch/mips/sni/pcit.c | 21 ++++++--------------- arch/mips/sni/rm200.c | 42 +++++++++++++++--------------------------- 4 files changed, 33 insertions(+), 74 deletions(-) diff --git a/arch/mips/sni/a20r.c b/arch/mips/sni/a20r.c index bbe7187879fa..72b94155778d 100644 --- a/arch/mips/sni/a20r.c +++ b/arch/mips/sni/a20r.c @@ -168,33 +168,22 @@ static u32 a20r_ack_hwint(void) return status; } -static inline void unmask_a20r_irq(unsigned int irq) +static inline void unmask_a20r_irq(struct irq_data *d) { - set_c0_status(0x100 << (irq - SNI_A20R_IRQ_BASE)); + set_c0_status(0x100 << (d->irq - SNI_A20R_IRQ_BASE)); irq_enable_hazard(); } -static inline void mask_a20r_irq(unsigned int irq) +static inline void mask_a20r_irq(struct irq_data *d) { - clear_c0_status(0x100 << (irq - SNI_A20R_IRQ_BASE)); + clear_c0_status(0x100 << (d->irq - SNI_A20R_IRQ_BASE)); irq_disable_hazard(); } -static void end_a20r_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) { - a20r_ack_hwint(); - unmask_a20r_irq(irq); - } -} - static struct irq_chip a20r_irq_type = { .name = "A20R", - .ack = mask_a20r_irq, - .mask = mask_a20r_irq, - .mask_ack = mask_a20r_irq, - .unmask = unmask_a20r_irq, - .end = end_a20r_irq, + .irq_mask = mask_a20r_irq, + .irq_unmask = unmask_a20r_irq, }; /* diff --git a/arch/mips/sni/pcimt.c b/arch/mips/sni/pcimt.c index 8c92c73bc717..cfcc68abc5b2 100644 --- a/arch/mips/sni/pcimt.c +++ b/arch/mips/sni/pcimt.c @@ -194,33 +194,24 @@ static struct pci_controller sni_controller = { .io_map_base = SNI_PORT_BASE }; -static void enable_pcimt_irq(unsigned int irq) +static void enable_pcimt_irq(struct irq_data *d) { - unsigned int mask = 1 << (irq - PCIMT_IRQ_INT2); + unsigned int mask = 1 << (d->irq - PCIMT_IRQ_INT2); *(volatile u8 *) PCIMT_IRQSEL |= mask; } -void disable_pcimt_irq(unsigned int irq) +void disable_pcimt_irq(struct irq_data *d) { - unsigned int mask = ~(1 << (irq - PCIMT_IRQ_INT2)); + unsigned int mask = ~(1 << (d->irq - PCIMT_IRQ_INT2)); *(volatile u8 *) PCIMT_IRQSEL &= mask; } -static void end_pcimt_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_pcimt_irq(irq); -} - static struct irq_chip pcimt_irq_type = { .name = "PCIMT", - .ack = disable_pcimt_irq, - .mask = disable_pcimt_irq, - .mask_ack = disable_pcimt_irq, - .unmask = enable_pcimt_irq, - .end = end_pcimt_irq, + .irq_mask = disable_pcimt_irq, + .irq_unmask = enable_pcimt_irq, }; /* diff --git a/arch/mips/sni/pcit.c b/arch/mips/sni/pcit.c index dc9874553bec..0846e99a6efe 100644 --- a/arch/mips/sni/pcit.c +++ b/arch/mips/sni/pcit.c @@ -156,33 +156,24 @@ static struct pci_controller sni_pcit_controller = { .io_map_base = SNI_PORT_BASE }; -static void enable_pcit_irq(unsigned int irq) +static void enable_pcit_irq(struct irq_data *d) { - u32 mask = 1 << (irq - SNI_PCIT_INT_START + 24); + u32 mask = 1 << (d->irq - SNI_PCIT_INT_START + 24); *(volatile u32 *)SNI_PCIT_INT_REG |= mask; } -void disable_pcit_irq(unsigned int irq) +void disable_pcit_irq(struct irq_data *d) { - u32 mask = 1 << (irq - SNI_PCIT_INT_START + 24); + u32 mask = 1 << (d->irq - SNI_PCIT_INT_START + 24); *(volatile u32 *)SNI_PCIT_INT_REG &= ~mask; } -void end_pcit_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_pcit_irq(irq); -} - static struct irq_chip pcit_irq_type = { .name = "PCIT", - .ack = disable_pcit_irq, - .mask = disable_pcit_irq, - .mask_ack = disable_pcit_irq, - .unmask = enable_pcit_irq, - .end = end_pcit_irq, + .irq_mask = disable_pcit_irq, + .irq_unmask = enable_pcit_irq, }; static void pcit_hwint1(void) diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c index 0e6f42c2bbc8..f05d8e593300 100644 --- a/arch/mips/sni/rm200.c +++ b/arch/mips/sni/rm200.c @@ -155,12 +155,11 @@ static __iomem u8 *rm200_pic_slave; #define cached_master_mask (rm200_cached_irq_mask) #define cached_slave_mask (rm200_cached_irq_mask >> 8) -static void sni_rm200_disable_8259A_irq(unsigned int irq) +static void sni_rm200_disable_8259A_irq(struct irq_data *d) { - unsigned int mask; + unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE; unsigned long flags; - irq -= RM200_I8259A_IRQ_BASE; mask = 1 << irq; raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); rm200_cached_irq_mask |= mask; @@ -171,12 +170,11 @@ static void sni_rm200_disable_8259A_irq(unsigned int irq) raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags); } -static void sni_rm200_enable_8259A_irq(unsigned int irq) +static void sni_rm200_enable_8259A_irq(struct irq_data *d) { - unsigned int mask; + unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE; unsigned long flags; - irq -= RM200_I8259A_IRQ_BASE; mask = ~(1 << irq); raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); rm200_cached_irq_mask &= mask; @@ -210,12 +208,11 @@ static inline int sni_rm200_i8259A_irq_real(unsigned int irq) * first, _then_ send the EOI, and the order of EOI * to the two 8259s is important! */ -void sni_rm200_mask_and_ack_8259A(unsigned int irq) +void sni_rm200_mask_and_ack_8259A(struct irq_data *d) { - unsigned int irqmask; + unsigned int irqmask, irq = d->irq - RM200_I8259A_IRQ_BASE; unsigned long flags; - irq -= RM200_I8259A_IRQ_BASE; irqmask = 1 << irq; raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); /* @@ -285,9 +282,9 @@ spurious_8259A_irq: static struct irq_chip sni_rm200_i8259A_chip = { .name = "RM200-XT-PIC", - .mask = sni_rm200_disable_8259A_irq, - .unmask = sni_rm200_enable_8259A_irq, - .mask_ack = sni_rm200_mask_and_ack_8259A, + .irq_mask = sni_rm200_disable_8259A_irq, + .irq_unmask = sni_rm200_enable_8259A_irq, + .irq_mask_ack = sni_rm200_mask_and_ack_8259A, }; /* @@ -429,33 +426,24 @@ void __init sni_rm200_i8259_irqs(void) #define SNI_RM200_INT_START 24 #define SNI_RM200_INT_END 28 -static void enable_rm200_irq(unsigned int irq) +static void enable_rm200_irq(struct irq_data *d) { - unsigned int mask = 1 << (irq - SNI_RM200_INT_START); + unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START); *(volatile u8 *)SNI_RM200_INT_ENA_REG &= ~mask; } -void disable_rm200_irq(unsigned int irq) +void disable_rm200_irq(struct irq_data *d) { - unsigned int mask = 1 << (irq - SNI_RM200_INT_START); + unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START); *(volatile u8 *)SNI_RM200_INT_ENA_REG |= mask; } -void end_rm200_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_rm200_irq(irq); -} - static struct irq_chip rm200_irq_type = { .name = "RM200", - .ack = disable_rm200_irq, - .mask = disable_rm200_irq, - .mask_ack = disable_rm200_irq, - .unmask = enable_rm200_irq, - .end = end_rm200_irq, + .irq_mask = disable_rm200_irq, + .irq_unmask = enable_rm200_irq, }; static void sni_rm200_hwint(void) -- cgit v1.2.3 From d7ae7c7137868fca5a18954f4d70d525f38867c9 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:16 +0000 Subject: MIPS: TXx9: Convert to new irq_chip functions Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2207/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/txx9/generic/irq_tx4939.c | 28 +++++++++--------- arch/mips/txx9/jmr3927/irq.c | 14 ++++----- arch/mips/txx9/rbtx4927/irq.c | 58 +++++++++++++++++-------------------- arch/mips/txx9/rbtx4938/irq.c | 54 +++++++++++++++------------------- arch/mips/txx9/rbtx4939/irq.c | 14 ++++----- 5 files changed, 75 insertions(+), 93 deletions(-) diff --git a/arch/mips/txx9/generic/irq_tx4939.c b/arch/mips/txx9/generic/irq_tx4939.c index 3886ad77cbad..93b6edbedd64 100644 --- a/arch/mips/txx9/generic/irq_tx4939.c +++ b/arch/mips/txx9/generic/irq_tx4939.c @@ -50,9 +50,9 @@ static struct { unsigned char mode; } tx4939irq[TX4939_NUM_IR] __read_mostly; -static void tx4939_irq_unmask(unsigned int irq) +static void tx4939_irq_unmask(struct irq_data *d) { - unsigned int irq_nr = irq - TXX9_IRQ_BASE; + unsigned int irq_nr = d->irq - TXX9_IRQ_BASE; u32 __iomem *lvlp; int ofs; if (irq_nr < 32) { @@ -68,9 +68,9 @@ static void tx4939_irq_unmask(unsigned int irq) lvlp); } -static inline void tx4939_irq_mask(unsigned int irq) +static inline void tx4939_irq_mask(struct irq_data *d) { - unsigned int irq_nr = irq - TXX9_IRQ_BASE; + unsigned int irq_nr = d->irq - TXX9_IRQ_BASE; u32 __iomem *lvlp; int ofs; if (irq_nr < 32) { @@ -87,11 +87,11 @@ static inline void tx4939_irq_mask(unsigned int irq) mmiowb(); } -static void tx4939_irq_mask_ack(unsigned int irq) +static void tx4939_irq_mask_ack(struct irq_data *d) { - unsigned int irq_nr = irq - TXX9_IRQ_BASE; + unsigned int irq_nr = d->irq - TXX9_IRQ_BASE; - tx4939_irq_mask(irq); + tx4939_irq_mask(d); if (TXx9_IRCR_EDGE(tx4939irq[irq_nr].mode)) { irq_nr--; /* clear edge detection */ @@ -101,9 +101,9 @@ static void tx4939_irq_mask_ack(unsigned int irq) } } -static int tx4939_irq_set_type(unsigned int irq, unsigned int flow_type) +static int tx4939_irq_set_type(struct irq_data *d, unsigned int flow_type) { - unsigned int irq_nr = irq - TXX9_IRQ_BASE; + unsigned int irq_nr = d->irq - TXX9_IRQ_BASE; u32 cr; u32 __iomem *crp; int ofs; @@ -145,11 +145,11 @@ static int tx4939_irq_set_type(unsigned int irq, unsigned int flow_type) static struct irq_chip tx4939_irq_chip = { .name = "TX4939", - .ack = tx4939_irq_mask_ack, - .mask = tx4939_irq_mask, - .mask_ack = tx4939_irq_mask_ack, - .unmask = tx4939_irq_unmask, - .set_type = tx4939_irq_set_type, + .irq_ack = tx4939_irq_mask_ack, + .irq_mask = tx4939_irq_mask, + .irq_mask_ack = tx4939_irq_mask_ack, + .irq_unmask = tx4939_irq_unmask, + .irq_set_type = tx4939_irq_set_type, }; static int tx4939_irq_set_pri(int irc_irq, int new_pri) diff --git a/arch/mips/txx9/jmr3927/irq.c b/arch/mips/txx9/jmr3927/irq.c index 0a7f8e3b9fd7..92a5c1b400f0 100644 --- a/arch/mips/txx9/jmr3927/irq.c +++ b/arch/mips/txx9/jmr3927/irq.c @@ -47,20 +47,20 @@ * CP0_STATUS is a thread's resource (saved/restored on context switch). * So disable_irq/enable_irq MUST handle IOC/IRC registers. */ -static void mask_irq_ioc(unsigned int irq) +static void mask_irq_ioc(struct irq_data *d) { /* 0: mask */ - unsigned int irq_nr = irq - JMR3927_IRQ_IOC; + unsigned int irq_nr = d->irq - JMR3927_IRQ_IOC; unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR); unsigned int bit = 1 << irq_nr; jmr3927_ioc_reg_out(imask & ~bit, JMR3927_IOC_INTM_ADDR); /* flush write buffer */ (void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR); } -static void unmask_irq_ioc(unsigned int irq) +static void unmask_irq_ioc(struct irq_data *d) { /* 0: mask */ - unsigned int irq_nr = irq - JMR3927_IRQ_IOC; + unsigned int irq_nr = d->irq - JMR3927_IRQ_IOC; unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR); unsigned int bit = 1 << irq_nr; jmr3927_ioc_reg_out(imask | bit, JMR3927_IOC_INTM_ADDR); @@ -95,10 +95,8 @@ static int jmr3927_irq_dispatch(int pending) static struct irq_chip jmr3927_irq_ioc = { .name = "jmr3927_ioc", - .ack = mask_irq_ioc, - .mask = mask_irq_ioc, - .mask_ack = mask_irq_ioc, - .unmask = unmask_irq_ioc, + .irq_mask = mask_irq_ioc, + .irq_unmask = unmask_irq_ioc, }; void __init jmr3927_irq_setup(void) diff --git a/arch/mips/txx9/rbtx4927/irq.c b/arch/mips/txx9/rbtx4927/irq.c index c4b54d20efd3..7c0a048b307c 100644 --- a/arch/mips/txx9/rbtx4927/irq.c +++ b/arch/mips/txx9/rbtx4927/irq.c @@ -117,18 +117,6 @@ #include <asm/txx9/generic.h> #include <asm/txx9/rbtx4927.h> -static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq); -static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq); - -#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC" -static struct irq_chip toshiba_rbtx4927_irq_ioc_type = { - .name = TOSHIBA_RBTX4927_IOC_NAME, - .ack = toshiba_rbtx4927_irq_ioc_disable, - .mask = toshiba_rbtx4927_irq_ioc_disable, - .mask_ack = toshiba_rbtx4927_irq_ioc_disable, - .unmask = toshiba_rbtx4927_irq_ioc_enable, -}; - static int toshiba_rbtx4927_irq_nested(int sw_irq) { u8 level3; @@ -139,41 +127,47 @@ static int toshiba_rbtx4927_irq_nested(int sw_irq) return RBTX4927_IRQ_IOC + __fls8(level3); } -static void __init toshiba_rbtx4927_irq_ioc_init(void) -{ - int i; - - /* mask all IOC interrupts */ - writeb(0, rbtx4927_imask_addr); - /* clear SoftInt interrupts */ - writeb(0, rbtx4927_softint_addr); - - for (i = RBTX4927_IRQ_IOC; - i < RBTX4927_IRQ_IOC + RBTX4927_NR_IRQ_IOC; i++) - set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type, - handle_level_irq); - set_irq_chained_handler(RBTX4927_IRQ_IOCINT, handle_simple_irq); -} - -static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq) +static void toshiba_rbtx4927_irq_ioc_enable(struct irq_data *d) { unsigned char v; v = readb(rbtx4927_imask_addr); - v |= (1 << (irq - RBTX4927_IRQ_IOC)); + v |= (1 << (d->irq - RBTX4927_IRQ_IOC)); writeb(v, rbtx4927_imask_addr); } -static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq) +static void toshiba_rbtx4927_irq_ioc_disable(struct irq_data *d) { unsigned char v; v = readb(rbtx4927_imask_addr); - v &= ~(1 << (irq - RBTX4927_IRQ_IOC)); + v &= ~(1 << (d->irq - RBTX4927_IRQ_IOC)); writeb(v, rbtx4927_imask_addr); mmiowb(); } +#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC" +static struct irq_chip toshiba_rbtx4927_irq_ioc_type = { + .name = TOSHIBA_RBTX4927_IOC_NAME, + .irq_mask = toshiba_rbtx4927_irq_ioc_disable, + .irq_unmask = toshiba_rbtx4927_irq_ioc_enable, +}; + +static void __init toshiba_rbtx4927_irq_ioc_init(void) +{ + int i; + + /* mask all IOC interrupts */ + writeb(0, rbtx4927_imask_addr); + /* clear SoftInt interrupts */ + writeb(0, rbtx4927_softint_addr); + + for (i = RBTX4927_IRQ_IOC; + i < RBTX4927_IRQ_IOC + RBTX4927_NR_IRQ_IOC; i++) + set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type, + handle_level_irq); + set_irq_chained_handler(RBTX4927_IRQ_IOCINT, handle_simple_irq); +} static int rbtx4927_irq_dispatch(int pending) { diff --git a/arch/mips/txx9/rbtx4938/irq.c b/arch/mips/txx9/rbtx4938/irq.c index 67a73a8065ec..2ec4fe1b1670 100644 --- a/arch/mips/txx9/rbtx4938/irq.c +++ b/arch/mips/txx9/rbtx4938/irq.c @@ -69,18 +69,6 @@ #include <asm/txx9/generic.h> #include <asm/txx9/rbtx4938.h> -static void toshiba_rbtx4938_irq_ioc_enable(unsigned int irq); -static void toshiba_rbtx4938_irq_ioc_disable(unsigned int irq); - -#define TOSHIBA_RBTX4938_IOC_NAME "RBTX4938-IOC" -static struct irq_chip toshiba_rbtx4938_irq_ioc_type = { - .name = TOSHIBA_RBTX4938_IOC_NAME, - .ack = toshiba_rbtx4938_irq_ioc_disable, - .mask = toshiba_rbtx4938_irq_ioc_disable, - .mask_ack = toshiba_rbtx4938_irq_ioc_disable, - .unmask = toshiba_rbtx4938_irq_ioc_enable, -}; - static int toshiba_rbtx4938_irq_nested(int sw_irq) { u8 level3; @@ -92,41 +80,33 @@ static int toshiba_rbtx4938_irq_nested(int sw_irq) return RBTX4938_IRQ_IOC + __fls8(level3); } -static void __init -toshiba_rbtx4938_irq_ioc_init(void) -{ - int i; - - for (i = RBTX4938_IRQ_IOC; - i < RBTX4938_IRQ_IOC + RBTX4938_NR_IRQ_IOC; i++) - set_irq_chip_and_handler(i, &toshiba_rbtx4938_irq_ioc_type, - handle_level_irq); - - set_irq_chained_handler(RBTX4938_IRQ_IOCINT, handle_simple_irq); -} - -static void -toshiba_rbtx4938_irq_ioc_enable(unsigned int irq) +static void toshiba_rbtx4938_irq_ioc_enable(struct irq_data *d) { unsigned char v; v = readb(rbtx4938_imask_addr); - v |= (1 << (irq - RBTX4938_IRQ_IOC)); + v |= (1 << (d->irq - RBTX4938_IRQ_IOC)); writeb(v, rbtx4938_imask_addr); mmiowb(); } -static void -toshiba_rbtx4938_irq_ioc_disable(unsigned int irq) +static void toshiba_rbtx4938_irq_ioc_disable(struct irq_data *d) { unsigned char v; v = readb(rbtx4938_imask_addr); - v &= ~(1 << (irq - RBTX4938_IRQ_IOC)); + v &= ~(1 << (d->irq - RBTX4938_IRQ_IOC)); writeb(v, rbtx4938_imask_addr); mmiowb(); } +#define TOSHIBA_RBTX4938_IOC_NAME "RBTX4938-IOC" +static struct irq_chip toshiba_rbtx4938_irq_ioc_type = { + .name = TOSHIBA_RBTX4938_IOC_NAME, + .irq_mask = toshiba_rbtx4938_irq_ioc_disable, + .irq_unmask = toshiba_rbtx4938_irq_ioc_enable, +}; + static int rbtx4938_irq_dispatch(int pending) { int irq; @@ -146,6 +126,18 @@ static int rbtx4938_irq_dispatch(int pending) return irq; } +static void __init toshiba_rbtx4938_irq_ioc_init(void) +{ + int i; + + for (i = RBTX4938_IRQ_IOC; + i < RBTX4938_IRQ_IOC + RBTX4938_NR_IRQ_IOC; i++) + set_irq_chip_and_handler(i, &toshiba_rbtx4938_irq_ioc_type, + handle_level_irq); + + set_irq_chained_handler(RBTX4938_IRQ_IOCINT, handle_simple_irq); +} + void __init rbtx4938_irq_setup(void) { txx9_irq_dispatch = rbtx4938_irq_dispatch; diff --git a/arch/mips/txx9/rbtx4939/irq.c b/arch/mips/txx9/rbtx4939/irq.c index 57fa740a7205..70074632fb99 100644 --- a/arch/mips/txx9/rbtx4939/irq.c +++ b/arch/mips/txx9/rbtx4939/irq.c @@ -19,16 +19,16 @@ * RBTX4939 IOC controller definition */ -static void rbtx4939_ioc_irq_unmask(unsigned int irq) +static void rbtx4939_ioc_irq_unmask(struct irq_data *d) { - int ioc_nr = irq - RBTX4939_IRQ_IOC; + int ioc_nr = d->irq - RBTX4939_IRQ_IOC; writeb(readb(rbtx4939_ien_addr) | (1 << ioc_nr), rbtx4939_ien_addr); } -static void rbtx4939_ioc_irq_mask(unsigned int irq) +static void rbtx4939_ioc_irq_mask(struct irq_data *d) { - int ioc_nr = irq - RBTX4939_IRQ_IOC; + int ioc_nr = d->irq - RBTX4939_IRQ_IOC; writeb(readb(rbtx4939_ien_addr) & ~(1 << ioc_nr), rbtx4939_ien_addr); mmiowb(); @@ -36,10 +36,8 @@ static void rbtx4939_ioc_irq_mask(unsigned int irq) static struct irq_chip rbtx4939_ioc_irq_chip = { .name = "IOC", - .ack = rbtx4939_ioc_irq_mask, - .mask = rbtx4939_ioc_irq_mask, - .mask_ack = rbtx4939_ioc_irq_mask, - .unmask = rbtx4939_ioc_irq_unmask, + .irq_mask = rbtx4939_ioc_irq_mask, + .irq_unmask = rbtx4939_ioc_irq_unmask, }; -- cgit v1.2.3 From fbaa4e2a19a4b85b38464cf2683e4d275b4d970c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Wed, 23 Mar 2011 21:09:17 +0000 Subject: MIPS: VR41xx: Convert to new irq_chip functions And cleanup direct access to irq_desc[]. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2208/ Patchwork: https://patchwork.linux-mips.org/patch/2209/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/vr41xx/common/icu.c | 72 ++++++++++++++++++++----------------------- arch/mips/vr41xx/common/irq.c | 19 ++++++------ 2 files changed, 44 insertions(+), 47 deletions(-) diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c index 6153b6a05ccf..f53156bb9aa8 100644 --- a/arch/mips/vr41xx/common/icu.c +++ b/arch/mips/vr41xx/common/icu.c @@ -154,7 +154,7 @@ static inline uint16_t icu2_clear(uint8_t offset, uint16_t clear) void vr41xx_enable_piuint(uint16_t mask) { - struct irq_desc *desc = irq_desc + PIU_IRQ; + struct irq_desc *desc = irq_to_desc(PIU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4111 || @@ -169,7 +169,7 @@ EXPORT_SYMBOL(vr41xx_enable_piuint); void vr41xx_disable_piuint(uint16_t mask) { - struct irq_desc *desc = irq_desc + PIU_IRQ; + struct irq_desc *desc = irq_to_desc(PIU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4111 || @@ -184,7 +184,7 @@ EXPORT_SYMBOL(vr41xx_disable_piuint); void vr41xx_enable_aiuint(uint16_t mask) { - struct irq_desc *desc = irq_desc + AIU_IRQ; + struct irq_desc *desc = irq_to_desc(AIU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4111 || @@ -199,7 +199,7 @@ EXPORT_SYMBOL(vr41xx_enable_aiuint); void vr41xx_disable_aiuint(uint16_t mask) { - struct irq_desc *desc = irq_desc + AIU_IRQ; + struct irq_desc *desc = irq_to_desc(AIU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4111 || @@ -214,7 +214,7 @@ EXPORT_SYMBOL(vr41xx_disable_aiuint); void vr41xx_enable_kiuint(uint16_t mask) { - struct irq_desc *desc = irq_desc + KIU_IRQ; + struct irq_desc *desc = irq_to_desc(KIU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4111 || @@ -229,7 +229,7 @@ EXPORT_SYMBOL(vr41xx_enable_kiuint); void vr41xx_disable_kiuint(uint16_t mask) { - struct irq_desc *desc = irq_desc + KIU_IRQ; + struct irq_desc *desc = irq_to_desc(KIU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4111 || @@ -244,7 +244,7 @@ EXPORT_SYMBOL(vr41xx_disable_kiuint); void vr41xx_enable_macint(uint16_t mask) { - struct irq_desc *desc = irq_desc + ETHERNET_IRQ; + struct irq_desc *desc = irq_to_desc(ETHERNET_IRQ); unsigned long flags; raw_spin_lock_irqsave(&desc->lock, flags); @@ -256,7 +256,7 @@ EXPORT_SYMBOL(vr41xx_enable_macint); void vr41xx_disable_macint(uint16_t mask) { - struct irq_desc *desc = irq_desc + ETHERNET_IRQ; + struct irq_desc *desc = irq_to_desc(ETHERNET_IRQ); unsigned long flags; raw_spin_lock_irqsave(&desc->lock, flags); @@ -268,7 +268,7 @@ EXPORT_SYMBOL(vr41xx_disable_macint); void vr41xx_enable_dsiuint(uint16_t mask) { - struct irq_desc *desc = irq_desc + DSIU_IRQ; + struct irq_desc *desc = irq_to_desc(DSIU_IRQ); unsigned long flags; raw_spin_lock_irqsave(&desc->lock, flags); @@ -280,7 +280,7 @@ EXPORT_SYMBOL(vr41xx_enable_dsiuint); void vr41xx_disable_dsiuint(uint16_t mask) { - struct irq_desc *desc = irq_desc + DSIU_IRQ; + struct irq_desc *desc = irq_to_desc(DSIU_IRQ); unsigned long flags; raw_spin_lock_irqsave(&desc->lock, flags); @@ -292,7 +292,7 @@ EXPORT_SYMBOL(vr41xx_disable_dsiuint); void vr41xx_enable_firint(uint16_t mask) { - struct irq_desc *desc = irq_desc + FIR_IRQ; + struct irq_desc *desc = irq_to_desc(FIR_IRQ); unsigned long flags; raw_spin_lock_irqsave(&desc->lock, flags); @@ -304,7 +304,7 @@ EXPORT_SYMBOL(vr41xx_enable_firint); void vr41xx_disable_firint(uint16_t mask) { - struct irq_desc *desc = irq_desc + FIR_IRQ; + struct irq_desc *desc = irq_to_desc(FIR_IRQ); unsigned long flags; raw_spin_lock_irqsave(&desc->lock, flags); @@ -316,7 +316,7 @@ EXPORT_SYMBOL(vr41xx_disable_firint); void vr41xx_enable_pciint(void) { - struct irq_desc *desc = irq_desc + PCI_IRQ; + struct irq_desc *desc = irq_to_desc(PCI_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4122 || @@ -332,7 +332,7 @@ EXPORT_SYMBOL(vr41xx_enable_pciint); void vr41xx_disable_pciint(void) { - struct irq_desc *desc = irq_desc + PCI_IRQ; + struct irq_desc *desc = irq_to_desc(PCI_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4122 || @@ -348,7 +348,7 @@ EXPORT_SYMBOL(vr41xx_disable_pciint); void vr41xx_enable_scuint(void) { - struct irq_desc *desc = irq_desc + SCU_IRQ; + struct irq_desc *desc = irq_to_desc(SCU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4122 || @@ -364,7 +364,7 @@ EXPORT_SYMBOL(vr41xx_enable_scuint); void vr41xx_disable_scuint(void) { - struct irq_desc *desc = irq_desc + SCU_IRQ; + struct irq_desc *desc = irq_to_desc(SCU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4122 || @@ -380,7 +380,7 @@ EXPORT_SYMBOL(vr41xx_disable_scuint); void vr41xx_enable_csiint(uint16_t mask) { - struct irq_desc *desc = irq_desc + CSI_IRQ; + struct irq_desc *desc = irq_to_desc(CSI_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4122 || @@ -396,7 +396,7 @@ EXPORT_SYMBOL(vr41xx_enable_csiint); void vr41xx_disable_csiint(uint16_t mask) { - struct irq_desc *desc = irq_desc + CSI_IRQ; + struct irq_desc *desc = irq_to_desc(CSI_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4122 || @@ -412,7 +412,7 @@ EXPORT_SYMBOL(vr41xx_disable_csiint); void vr41xx_enable_bcuint(void) { - struct irq_desc *desc = irq_desc + BCU_IRQ; + struct irq_desc *desc = irq_to_desc(BCU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4122 || @@ -428,7 +428,7 @@ EXPORT_SYMBOL(vr41xx_enable_bcuint); void vr41xx_disable_bcuint(void) { - struct irq_desc *desc = irq_desc + BCU_IRQ; + struct irq_desc *desc = irq_to_desc(BCU_IRQ); unsigned long flags; if (current_cpu_type() == CPU_VR4122 || @@ -442,45 +442,41 @@ void vr41xx_disable_bcuint(void) EXPORT_SYMBOL(vr41xx_disable_bcuint); -static void disable_sysint1_irq(unsigned int irq) +static void disable_sysint1_irq(struct irq_data *d) { - icu1_clear(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(irq)); + icu1_clear(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(d->irq)); } -static void enable_sysint1_irq(unsigned int irq) +static void enable_sysint1_irq(struct irq_data *d) { - icu1_set(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(irq)); + icu1_set(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(d->irq)); } static struct irq_chip sysint1_irq_type = { .name = "SYSINT1", - .ack = disable_sysint1_irq, - .mask = disable_sysint1_irq, - .mask_ack = disable_sysint1_irq, - .unmask = enable_sysint1_irq, + .irq_mask = disable_sysint1_irq, + .irq_unmask = enable_sysint1_irq, }; -static void disable_sysint2_irq(unsigned int irq) +static void disable_sysint2_irq(struct irq_data *d) { - icu2_clear(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(irq)); + icu2_clear(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(d->irq)); } -static void enable_sysint2_irq(unsigned int irq) +static void enable_sysint2_irq(struct irq_data *d) { - icu2_set(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(irq)); + icu2_set(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(d->irq)); } static struct irq_chip sysint2_irq_type = { .name = "SYSINT2", - .ack = disable_sysint2_irq, - .mask = disable_sysint2_irq, - .mask_ack = disable_sysint2_irq, - .unmask = enable_sysint2_irq, + .irq_mask = disable_sysint2_irq, + .irq_unmask = enable_sysint2_irq, }; static inline int set_sysint1_assign(unsigned int irq, unsigned char assign) { - struct irq_desc *desc = irq_desc + irq; + struct irq_desc *desc = irq_to_desc(irq); uint16_t intassign0, intassign1; unsigned int pin; @@ -540,7 +536,7 @@ static inline int set_sysint1_assign(unsigned int irq, unsigned char assign) static inline int set_sysint2_assign(unsigned int irq, unsigned char assign) { - struct irq_desc *desc = irq_desc + irq; + struct irq_desc *desc = irq_to_desc(irq); uint16_t intassign2, intassign3; unsigned int pin; diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c index 0975eb72d385..9ff7f397c0e1 100644 --- a/arch/mips/vr41xx/common/irq.c +++ b/arch/mips/vr41xx/common/irq.c @@ -62,7 +62,6 @@ EXPORT_SYMBOL_GPL(cascade_irq); static void irq_dispatch(unsigned int irq) { irq_cascade_t *cascade; - struct irq_desc *desc; if (irq >= NR_IRQS) { atomic_inc(&irq_err_count); @@ -71,14 +70,16 @@ static void irq_dispatch(unsigned int irq) cascade = irq_cascade + irq; if (cascade->get_irq != NULL) { - unsigned int source_irq = irq; + struct irq_desc *desc = irq_to_desc(irq); + struct irq_data *idata = irq_desc_get_irq_data(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); int ret; - desc = irq_desc + source_irq; - if (desc->chip->mask_ack) - desc->chip->mask_ack(source_irq); + + if (chip->irq_mask_ack) + chip->irq_mask_ack(idata); else { - desc->chip->mask(source_irq); - desc->chip->ack(source_irq); + chip->irq_mask(idata); + chip->irq_ack(idata); } ret = cascade->get_irq(irq); irq = ret; @@ -86,8 +87,8 @@ static void irq_dispatch(unsigned int irq) atomic_inc(&irq_err_count); else irq_dispatch(irq); - if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask) - desc->chip->unmask(source_irq); + if (!(desc->status & IRQ_DISABLED) && chip->irq_unmask) + chip->irq_unmask(idata); } else do_IRQ(irq); } -- cgit v1.2.3 From 84ed94323e67c9f99606fb24e8c746a0d62ab95a Mon Sep 17 00:00:00 2001 From: David Daney <ddaney@caviumnetworks.com> Date: Fri, 18 Mar 2011 10:37:23 -0700 Subject: MIPS: Hook up name_to_handle_at, open_by_handle_at and clock_adjtime syscalls. These system calls we recently added. 32-bit ABIs need compat handling for sys_clock_adjtime(). o32 also needs compat handling for sys_open_by_handle_at(); Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2165/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/include/asm/unistd.h | 21 +++++++++++++++------ arch/mips/kernel/scall32-o32.S | 3 +++ arch/mips/kernel/scall64-64.S | 3 +++ arch/mips/kernel/scall64-n32.S | 3 +++ arch/mips/kernel/scall64-o32.S | 3 +++ 5 files changed, 27 insertions(+), 6 deletions(-) diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h index 550725b881d5..d1ea5ea7802a 100644 --- a/arch/mips/include/asm/unistd.h +++ b/arch/mips/include/asm/unistd.h @@ -359,16 +359,19 @@ #define __NR_fanotify_init (__NR_Linux + 336) #define __NR_fanotify_mark (__NR_Linux + 337) #define __NR_prlimit64 (__NR_Linux + 338) +#define __NR_name_to_handle_at (__NR_Linux + 339) +#define __NR_open_by_handle_at (__NR_Linux + 340) +#define __NR_clock_adjtime (__NR_Linux + 341) /* * Offset of the last Linux o32 flavoured syscall */ -#define __NR_Linux_syscalls 338 +#define __NR_Linux_syscalls 341 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ #define __NR_O32_Linux 4000 -#define __NR_O32_Linux_syscalls 338 +#define __NR_O32_Linux_syscalls 341 #if _MIPS_SIM == _MIPS_SIM_ABI64 @@ -674,16 +677,19 @@ #define __NR_fanotify_init (__NR_Linux + 295) #define __NR_fanotify_mark (__NR_Linux + 296) #define __NR_prlimit64 (__NR_Linux + 297) +#define __NR_name_to_handle_at (__NR_Linux + 298) +#define __NR_open_by_handle_at (__NR_Linux + 299) +#define __NR_clock_adjtime (__NR_Linux + 300) /* * Offset of the last Linux 64-bit flavoured syscall */ -#define __NR_Linux_syscalls 297 +#define __NR_Linux_syscalls 300 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */ #define __NR_64_Linux 5000 -#define __NR_64_Linux_syscalls 297 +#define __NR_64_Linux_syscalls 300 #if _MIPS_SIM == _MIPS_SIM_NABI32 @@ -994,16 +1000,19 @@ #define __NR_fanotify_init (__NR_Linux + 300) #define __NR_fanotify_mark (__NR_Linux + 301) #define __NR_prlimit64 (__NR_Linux + 302) +#define __NR_name_to_handle_at (__NR_Linux + 303) +#define __NR_open_by_handle_at (__NR_Linux + 304) +#define __NR_clock_adjtime (__NR_Linux + 305) /* * Offset of the last N32 flavoured syscall */ -#define __NR_Linux_syscalls 302 +#define __NR_Linux_syscalls 305 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */ #define __NR_N32_Linux 6000 -#define __NR_N32_Linux_syscalls 302 +#define __NR_N32_Linux_syscalls 305 #ifdef __KERNEL__ diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index fbaabad0e6e2..66b439db91b5 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -586,6 +586,9 @@ einval: li v0, -ENOSYS sys sys_fanotify_init 2 sys sys_fanotify_mark 6 sys sys_prlimit64 4 + sys sys_name_to_handle_at 5 + sys sys_open_by_handle_at 3 /* 4340 */ + sys sys_clock_adjtime 2 .endm /* We pre-compute the number of _instruction_ bytes needed to diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index 3f4179283207..0ccd6e363b79 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -425,4 +425,7 @@ sys_call_table: PTR sys_fanotify_init /* 5295 */ PTR sys_fanotify_mark PTR sys_prlimit64 + PTR sys_name_to_handle_at + PTR sys_open_by_handle_at + PTR sys_clock_adjtime /* 5300 */ .size sys_call_table,.-sys_call_table diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index f08ece6d8acc..179d1c8dcbb2 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -425,4 +425,7 @@ EXPORT(sysn32_call_table) PTR sys_fanotify_init /* 6300 */ PTR sys_fanotify_mark PTR sys_prlimit64 + PTR sys_name_to_handle_at + PTR sys_open_by_handle_at + PTR compat_sys_clock_adjtime /* 6305 */ .size sysn32_call_table,.-sysn32_call_table diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 78d768a3e19d..5c4e0dc52f78 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -543,4 +543,7 @@ sys_call_table: PTR sys_fanotify_init PTR sys_32_fanotify_mark PTR sys_prlimit64 + PTR sys_name_to_handle_at + PTR compat_sys_open_by_handle_at /* 4340 */ + PTR compat_sys_clock_adjtime .size sys_call_table,.-sys_call_table -- cgit v1.2.3 From 1bbf28756149a0aa0e3c8a74cea9bbe715639027 Mon Sep 17 00:00:00 2001 From: Ralf Baechle <ralf@linux-mips.org> Date: Fri, 25 Mar 2011 18:45:20 +0100 Subject: MIPS: Wire up syncfs(2). Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/include/asm/unistd.h | 15 +++++++++------ arch/mips/kernel/scall32-o32.S | 1 + arch/mips/kernel/scall64-64.S | 1 + arch/mips/kernel/scall64-n32.S | 1 + arch/mips/kernel/scall64-o32.S | 1 + 5 files changed, 13 insertions(+), 6 deletions(-) diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h index d1ea5ea7802a..dae22c1d2c82 100644 --- a/arch/mips/include/asm/unistd.h +++ b/arch/mips/include/asm/unistd.h @@ -362,16 +362,17 @@ #define __NR_name_to_handle_at (__NR_Linux + 339) #define __NR_open_by_handle_at (__NR_Linux + 340) #define __NR_clock_adjtime (__NR_Linux + 341) +#define __NR_syncfs (__NR_Linux + 342) /* * Offset of the last Linux o32 flavoured syscall */ -#define __NR_Linux_syscalls 341 +#define __NR_Linux_syscalls 342 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ #define __NR_O32_Linux 4000 -#define __NR_O32_Linux_syscalls 341 +#define __NR_O32_Linux_syscalls 342 #if _MIPS_SIM == _MIPS_SIM_ABI64 @@ -680,16 +681,17 @@ #define __NR_name_to_handle_at (__NR_Linux + 298) #define __NR_open_by_handle_at (__NR_Linux + 299) #define __NR_clock_adjtime (__NR_Linux + 300) +#define __NR_syncfs (__NR_Linux + 301) /* * Offset of the last Linux 64-bit flavoured syscall */ -#define __NR_Linux_syscalls 300 +#define __NR_Linux_syscalls 301 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */ #define __NR_64_Linux 5000 -#define __NR_64_Linux_syscalls 300 +#define __NR_64_Linux_syscalls 301 #if _MIPS_SIM == _MIPS_SIM_NABI32 @@ -1003,16 +1005,17 @@ #define __NR_name_to_handle_at (__NR_Linux + 303) #define __NR_open_by_handle_at (__NR_Linux + 304) #define __NR_clock_adjtime (__NR_Linux + 305) +#define __NR_clock_adjtime (__NR_Linux + 306) /* * Offset of the last N32 flavoured syscall */ -#define __NR_Linux_syscalls 305 +#define __NR_Linux_syscalls 306 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */ #define __NR_N32_Linux 6000 -#define __NR_N32_Linux_syscalls 305 +#define __NR_N32_Linux_syscalls 306 #ifdef __KERNEL__ diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index 66b439db91b5..7f5468b38d4c 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -589,6 +589,7 @@ einval: li v0, -ENOSYS sys sys_name_to_handle_at 5 sys sys_open_by_handle_at 3 /* 4340 */ sys sys_clock_adjtime 2 + sys sys_syncfs 1 .endm /* We pre-compute the number of _instruction_ bytes needed to diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index 0ccd6e363b79..a2e1fcbc41dc 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -428,4 +428,5 @@ sys_call_table: PTR sys_name_to_handle_at PTR sys_open_by_handle_at PTR sys_clock_adjtime /* 5300 */ + PTR sys_syncfs .size sys_call_table,.-sys_call_table diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 179d1c8dcbb2..b2c7624995b8 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -428,4 +428,5 @@ EXPORT(sysn32_call_table) PTR sys_name_to_handle_at PTR sys_open_by_handle_at PTR compat_sys_clock_adjtime /* 6305 */ + PTR sys_syncfs .size sysn32_call_table,.-sysn32_call_table diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 5c4e0dc52f78..049a9c8c49a0 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -546,4 +546,5 @@ sys_call_table: PTR sys_name_to_handle_at PTR compat_sys_open_by_handle_at /* 4340 */ PTR compat_sys_clock_adjtime + PTR sys_syncfs .size sys_call_table,.-sys_call_table -- cgit v1.2.3 From 0b4cf1813f54d708b18c639260fc13dc3d922e96 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Tue, 8 Feb 2011 03:43:53 +0100 Subject: MIPS: JZ4740: qi_lb60: Add gpio-charger device Register the gpio-charger device which reports whether device is currently charging or not. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/2059/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/jz4740/board-qi_lb60.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c index 2c0e107966ad..ed8d66b4b03f 100644 --- a/arch/mips/jz4740/board-qi_lb60.c +++ b/arch/mips/jz4740/board-qi_lb60.c @@ -23,6 +23,7 @@ #include <linux/spi/spi_gpio.h> #include <linux/power_supply.h> #include <linux/power/jz4740-battery.h> +#include <linux/power/gpio-charger.h> #include <asm/mach-jz4740/jz4740_fb.h> #include <asm/mach-jz4740/jz4740_mmc.h> @@ -396,6 +397,28 @@ static struct platform_device qi_lb60_pwm_beeper = { }, }; +/* charger */ +static char *qi_lb60_batteries[] = { + "battery", +}; + +static struct gpio_charger_platform_data qi_lb60_charger_pdata = { + .name = "usb", + .type = POWER_SUPPLY_TYPE_USB, + .gpio = JZ_GPIO_PORTD(28), + .gpio_active_low = 1, + .supplied_to = qi_lb60_batteries, + .num_supplicants = ARRAY_SIZE(qi_lb60_batteries), +}; + +static struct platform_device qi_lb60_charger_device = { + .name = "gpio-charger", + .dev = { + .platform_data = &qi_lb60_charger_pdata, + }, +}; + + static struct platform_device *jz_platform_devices[] __initdata = { &jz4740_udc_device, &jz4740_mmc_device, @@ -410,6 +433,7 @@ static struct platform_device *jz_platform_devices[] __initdata = { &jz4740_adc_device, &qi_lb60_gpio_keys, &qi_lb60_pwm_beeper, + &qi_lb60_charger_device, }; static void __init board_gpio_setup(void) -- cgit v1.2.3 From c8fb4022cf61a0462ad01525e0b3dd00410e9eac Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars@metafoo.de> Date: Tue, 8 Feb 2011 03:43:54 +0100 Subject: MIPS: JZ4740: Set nand ecc offsets for the qi_lb60 board The jz4740 nand driver now requires that the ecc offsets are set. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/2058/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/jz4740/board-qi_lb60.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c index ed8d66b4b03f..bc18daaa8f84 100644 --- a/arch/mips/jz4740/board-qi_lb60.c +++ b/arch/mips/jz4740/board-qi_lb60.c @@ -50,14 +50,14 @@ static bool is_avt2; /* NAND */ static struct nand_ecclayout qi_lb60_ecclayout_1gb = { -/* .eccbytes = 36, + .eccbytes = 36, .eccpos = { 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41 - },*/ + }, .oobfree = { { .offset = 2, .length = 4 }, { .offset = 42, .length = 22 } @@ -86,7 +86,7 @@ static struct mtd_partition qi_lb60_partitions_1gb[] = { }; static struct nand_ecclayout qi_lb60_ecclayout_2gb = { -/* .eccbytes = 72, + .eccbytes = 72, .eccpos = { 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, @@ -97,7 +97,7 @@ static struct nand_ecclayout qi_lb60_ecclayout_2gb = { 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83 - },*/ + }, .oobfree = { { .offset = 2, .length = 10 }, { .offset = 84, .length = 44 }, -- cgit v1.2.3 From a45e3d6b13e97506b616980c0f122c3389bcefa4 Mon Sep 17 00:00:00 2001 From: Takashi Iwai <tiwai@suse.de> Date: Thu, 24 Mar 2011 09:50:15 +0100 Subject: ALSA: Fix yet another race in disconnection This patch fixes a race between snd_card_file_remove() and snd_card_disconnect(). When the card is added to shutdown_files list in snd_card_disconnect(), but it's freed in snd_card_file_remove() at the same time, the shutdown_files list gets corrupted. The list member must be freed in snd_card_file_remove() as well. Reported-and-tested-by: Russ Dill <russ.dill@gmail.com> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/core/init.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/core/init.c b/sound/core/init.c index 3e65da21a08c..a0080aa45ae9 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -848,6 +848,7 @@ int snd_card_file_add(struct snd_card *card, struct file *file) return -ENOMEM; mfile->file = file; mfile->disconnected_f_op = NULL; + INIT_LIST_HEAD(&mfile->shutdown_list); spin_lock(&card->files_lock); if (card->shutdown) { spin_unlock(&card->files_lock); @@ -883,6 +884,9 @@ int snd_card_file_remove(struct snd_card *card, struct file *file) list_for_each_entry(mfile, &card->files_list, list) { if (mfile->file == file) { list_del(&mfile->list); + spin_lock(&shutdown_lock); + list_del(&mfile->shutdown_list); + spin_unlock(&shutdown_lock); if (mfile->disconnected_f_op) fops_put(mfile->disconnected_f_op); found = mfile; -- cgit v1.2.3 From 5c050fb96380a87a85aad9084b68fdcd2b84c193 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet <corbet@lwn.net> Date: Fri, 25 Mar 2011 12:17:53 -0600 Subject: docs: update the development process document Here's a set of changes updating Documentation/development-process. I have update kernel releases and relevant statistics, added information for a couple of tools, zapped some trailing white space, and generally tried to make it more closely match the current state of affairs. [Typo fixes from Joe Perches and Nicolas Kaiser incorporated] Signed-off-by: Jonathan Corbet <corbet@lwn.net> Acked-by: Greg KH <greg@kroah.com> Cc: Randy Dunlap <rdunlap@xenotime.net> --- Documentation/development-process/1.Intro | 18 +-- Documentation/development-process/2.Process | 177 ++++++++++----------- Documentation/development-process/3.Early-stage | 31 +++- Documentation/development-process/4.Coding | 21 ++- Documentation/development-process/5.Posting | 28 ++-- Documentation/development-process/6.Followthrough | 16 +- Documentation/development-process/7.AdvancedTopics | 4 +- 7 files changed, 167 insertions(+), 128 deletions(-) diff --git a/Documentation/development-process/1.Intro b/Documentation/development-process/1.Intro index 8cc2cba2b10d..9b614480aa84 100644 --- a/Documentation/development-process/1.Intro +++ b/Documentation/development-process/1.Intro @@ -56,13 +56,13 @@ information on kernel development. 1.2: WHAT THIS DOCUMENT IS ABOUT -The Linux kernel, at over 6 million lines of code and well over 1000 active -contributors, is one of the largest and most active free software projects -in existence. Since its humble beginning in 1991, this kernel has evolved -into a best-of-breed operating system component which runs on pocket-sized -digital music players, desktop PCs, the largest supercomputers in -existence, and all types of systems in between. It is a robust, efficient, -and scalable solution for almost any situation. +The Linux kernel, at over 8 million lines of code and well over 1000 +contributors to each release, is one of the largest and most active free +software projects in existence. Since its humble beginning in 1991, this +kernel has evolved into a best-of-breed operating system component which +runs on pocket-sized digital music players, desktop PCs, the largest +supercomputers in existence, and all types of systems in between. It is a +robust, efficient, and scalable solution for almost any situation. With the growth of Linux has come an increase in the number of developers (and companies) wishing to participate in its development. Hardware @@ -115,7 +115,7 @@ This document was written by Jonathan Corbet, corbet@lwn.net. It has been improved by comments from Johannes Berg, James Berry, Alex Chiang, Roland Dreier, Randy Dunlap, Jake Edge, Jiri Kosina, Matt Mackall, Arthur Marsh, Amanda McPherson, Andrew Morton, Andrew Price, Tsugikazu Shibata, and -Jochen Voß. +Jochen Voß. This work was supported by the Linux Foundation; thanks especially to Amanda McPherson, who saw the value of this effort and made it all happen. @@ -221,7 +221,7 @@ include: - Everything that was said above about code review applies doubly to closed-source code. Since this code is not available at all, it cannot have been reviewed by the community and will, beyond doubt, have serious - problems. + problems. Makers of embedded systems, in particular, may be tempted to disregard much of what has been said in this section in the belief that they are shipping diff --git a/Documentation/development-process/2.Process b/Documentation/development-process/2.Process index 911a45186340..4823577c6509 100644 --- a/Documentation/development-process/2.Process +++ b/Documentation/development-process/2.Process @@ -14,16 +14,15 @@ The kernel developers use a loosely time-based release process, with a new major kernel release happening every two or three months. The recent release history looks like this: - 2.6.26 July 13, 2008 - 2.6.25 April 16, 2008 - 2.6.24 January 24, 2008 - 2.6.23 October 9, 2007 - 2.6.22 July 8, 2007 - 2.6.21 April 25, 2007 - 2.6.20 February 4, 2007 + 2.6.38 March 14, 2011 + 2.6.37 January 4, 2011 + 2.6.36 October 20, 2010 + 2.6.35 August 1, 2010 + 2.6.34 May 15, 2010 + 2.6.33 February 24, 2010 Every 2.6.x release is a major kernel release with new features, internal -API changes, and more. A typical 2.6 release can contain over 10,000 +API changes, and more. A typical 2.6 release can contain nearly 10,000 changesets with changes to several hundred thousand lines of code. 2.6 is thus the leading edge of Linux kernel development; the kernel uses a rolling development model which is continually integrating major changes. @@ -42,13 +41,13 @@ merge window do not come out of thin air; they have been collected, tested, and staged ahead of time. How that process works will be described in detail later on). -The merge window lasts for two weeks. At the end of this time, Linus -Torvalds will declare that the window is closed and release the first of -the "rc" kernels. For the kernel which is destined to be 2.6.26, for -example, the release which happens at the end of the merge window will be -called 2.6.26-rc1. The -rc1 release is the signal that the time to merge -new features has passed, and that the time to stabilize the next kernel has -begun. +The merge window lasts for approximately two weeks. At the end of this +time, Linus Torvalds will declare that the window is closed and release the +first of the "rc" kernels. For the kernel which is destined to be 2.6.40, +for example, the release which happens at the end of the merge window will +be called 2.6.40-rc1. The -rc1 release is the signal that the time to +merge new features has passed, and that the time to stabilize the next +kernel has begun. Over the next six to ten weeks, only patches which fix problems should be submitted to the mainline. On occasion a more significant change will be @@ -66,20 +65,19 @@ will get up to somewhere between -rc6 and -rc9 before the kernel is considered to be sufficiently stable and the final 2.6.x release is made. At that point the whole process starts over again. -As an example, here is how the 2.6.25 development cycle went (all dates in -2008): - - January 24 2.6.24 stable release - February 10 2.6.25-rc1, merge window closes - February 15 2.6.25-rc2 - February 24 2.6.25-rc3 - March 4 2.6.25-rc4 - March 9 2.6.25-rc5 - March 16 2.6.25-rc6 - March 25 2.6.25-rc7 - April 1 2.6.25-rc8 - April 11 2.6.25-rc9 - April 16 2.6.25 stable release +As an example, here is how the 2.6.38 development cycle went (all dates in +2011): + + January 4 2.6.37 stable release + January 18 2.6.38-rc1, merge window closes + January 21 2.6.38-rc2 + February 1 2.6.38-rc3 + February 7 2.6.38-rc4 + February 15 2.6.38-rc5 + February 21 2.6.38-rc6 + March 1 2.6.38-rc7 + March 7 2.6.38-rc8 + March 14 2.6.38 stable release How do the developers decide when to close the development cycle and create the stable release? The most significant metric used is the list of @@ -87,7 +85,7 @@ regressions from previous releases. No bugs are welcome, but those which break systems which worked in the past are considered to be especially serious. For this reason, patches which cause regressions are looked upon unfavorably and are quite likely to be reverted during the stabilization -period. +period. The developers' goal is to fix all known regressions before the stable release is made. In the real world, this kind of perfection is hard to @@ -99,26 +97,34 @@ kernels go out with a handful of known regressions though, hopefully, none of them are serious. Once a stable release is made, its ongoing maintenance is passed off to the -"stable team," currently comprised of Greg Kroah-Hartman and Chris Wright. -The stable team will release occasional updates to the stable release using -the 2.6.x.y numbering scheme. To be considered for an update release, a -patch must (1) fix a significant bug, and (2) already be merged into the -mainline for the next development kernel. Continuing our 2.6.25 example, -the history (as of this writing) is: - - May 1 2.6.25.1 - May 6 2.6.25.2 - May 9 2.6.25.3 - May 15 2.6.25.4 - June 7 2.6.25.5 - June 9 2.6.25.6 - June 16 2.6.25.7 - June 21 2.6.25.8 - June 24 2.6.25.9 - -Stable updates for a given kernel are made for approximately six months; -after that, the maintenance of stable releases is solely the responsibility -of the distributors which have shipped that particular kernel. +"stable team," currently consisting of Greg Kroah-Hartman. The stable team +will release occasional updates to the stable release using the 2.6.x.y +numbering scheme. To be considered for an update release, a patch must (1) +fix a significant bug, and (2) already be merged into the mainline for the +next development kernel. Kernels will typically receive stable updates for +a little more than one development cycle past their initial release. So, +for example, the 2.6.36 kernel's history looked like: + + October 10 2.6.36 stable release + November 22 2.6.36.1 + December 9 2.6.36.2 + January 7 2.6.36.3 + February 17 2.6.36.4 + +2.6.36.4 was the final stable update for the 2.6.36 release. + +Some kernels are designated "long term" kernels; they will receive support +for a longer period. As of this writing, the current long term kernels +and their maintainers are: + + 2.6.27 Willy Tarreau (Deep-frozen stable kernel) + 2.6.32 Greg Kroah-Hartman + 2.6.35 Andi Kleen (Embedded flag kernel) + +The selection of a kernel for long-term support is purely a matter of a +maintainer having the need and the time to maintain that release. There +are no known plans for long-term support for any specific upcoming +release. 2.2: THE LIFECYCLE OF A PATCH @@ -130,7 +136,7 @@ each patch implements a change which is desirable to have in the mainline. This process can happen quickly for minor fixes, or, in the case of large and controversial changes, go on for years. Much developer frustration comes from a lack of understanding of this process or from attempts to -circumvent it. +circumvent it. In the hopes of reducing that frustration, this document will describe how a patch gets into the kernel. What follows below is an introduction which @@ -193,8 +199,8 @@ involved. 2.3: HOW PATCHES GET INTO THE KERNEL There is exactly one person who can merge patches into the mainline kernel -repository: Linus Torvalds. But, of the over 12,000 patches which went -into the 2.6.25 kernel, only 250 (around 2%) were directly chosen by Linus +repository: Linus Torvalds. But, of the over 9,500 patches which went +into the 2.6.38 kernel, only 112 (around 1.3%) were directly chosen by Linus himself. The kernel project has long since grown to a size where no single developer could possibly inspect and select every patch unassisted. The way the kernel developers have addressed this growth is through the use of @@ -229,7 +235,7 @@ first in trees dedicated to network device drivers, wireless networking, etc. This chain of repositories can be arbitrarily long, though it rarely exceeds two or three links. Since each maintainer in the chain trusts those managing lower-level trees, this process is known as the "chain of -trust." +trust." Clearly, in a system like this, getting patches into the kernel depends on finding the right maintainer. Sending patches directly to Linus is not @@ -254,7 +260,7 @@ The answer comes in the form of -next trees, where subsystem trees are collected for testing and review. The older of these trees, maintained by Andrew Morton, is called "-mm" (for memory management, which is how it got started). The -mm tree integrates patches from a long list of subsystem -trees; it also has some patches aimed at helping with debugging. +trees; it also has some patches aimed at helping with debugging. Beyond that, -mm contains a significant collection of patches which have been selected by Andrew directly. These patches may have been posted on a @@ -264,8 +270,8 @@ subsystem tree of last resort; if there is no other obvious path for a patch into the mainline, it is likely to end up in -mm. Miscellaneous patches which accumulate in -mm will eventually either be forwarded on to an appropriate subsystem tree or be sent directly to Linus. In a typical -development cycle, approximately 10% of the patches going into the mainline -get there via -mm. +development cycle, approximately 5-10% of the patches going into the +mainline get there via -mm. The current -mm patch is available in the "mmotm" (-mm of the moment) directory at: @@ -275,7 +281,7 @@ directory at: Use of the MMOTM tree is likely to be a frustrating experience, though; there is a definite chance that it will not even compile. -The other -next tree, started more recently, is linux-next, maintained by +The primary tree for next-cycle patch merging is linux-next, maintained by Stephen Rothwell. The linux-next tree is, by design, a snapshot of what the mainline is expected to look like after the next merge window closes. Linux-next trees are announced on the linux-kernel and linux-next mailing @@ -287,25 +293,14 @@ Some information about linux-next has been gathered at: http://linux.f-seidel.de/linux-next/pmwiki/ -How the linux-next tree will fit into the development process is still -changing. As of this writing, the first full development cycle involving -linux-next (2.6.26) is coming to an end; thus far, it has proved to be a -valuable resource for finding and fixing integration problems before the -beginning of the merge window. See http://lwn.net/Articles/287155/ for -more information on how linux-next has worked to set up the 2.6.27 merge -window. - -Some developers have begun to suggest that linux-next should be used as the -target for future development as well. The linux-next tree does tend to be -far ahead of the mainline and is more representative of the tree into which -any new work will be merged. The downside to this idea is that the -volatility of linux-next tends to make it a difficult development target. -See http://lwn.net/Articles/289013/ for more information on this topic, and -stay tuned; much is still in flux where linux-next is involved. +Linux-next has become an integral part of the kernel development process; +all patches merged during a given merge window should really have found +their way into linux-next some time before the merge window opens. + 2.4.1: STAGING TREES -The kernel source tree now contains the drivers/staging/ directory, where +The kernel source tree contains the drivers/staging/ directory, where many sub-directories for drivers or filesystems that are on their way to being added to the kernel tree live. They remain in drivers/staging while they still need more work; once complete, they can be moved into the @@ -313,15 +308,23 @@ kernel proper. This is a way to keep track of drivers that aren't up to Linux kernel coding or quality standards, but people may want to use them and track development. -Greg Kroah-Hartman currently (as of 2.6.36) maintains the staging tree. -Drivers that still need work are sent to him, with each driver having -its own subdirectory in drivers/staging/. Along with the driver source -files, a TODO file should be present in the directory as well. The TODO -file lists the pending work that the driver needs for acceptance into -the kernel proper, as well as a list of people that should be Cc'd for any -patches to the driver. Staging drivers that don't currently build should -have their config entries depend upon CONFIG_BROKEN. Once they can -be successfully built without outside patches, CONFIG_BROKEN can be removed. +Greg Kroah-Hartman currently maintains the staging tree. Drivers that +still need work are sent to him, with each driver having its own +subdirectory in drivers/staging/. Along with the driver source files, a +TODO file should be present in the directory as well. The TODO file lists +the pending work that the driver needs for acceptance into the kernel +proper, as well as a list of people that should be Cc'd for any patches to +the driver. Current rules require that drivers contributed to staging +must, at a minimum, compile properly. + +Staging can be a relatively easy way to get new drivers into the mainline +where, with luck, they will come to the attention of other developers and +improve quickly. Entry into staging is not the end of the story, though; +code in staging which is not seeing regular progress will eventually be +removed. Distributors also tend to be relatively reluctant to enable +staging drivers. So staging is, at best, a stop on the way toward becoming +a proper mainline driver. + 2.5: TOOLS @@ -347,11 +350,7 @@ page at: http://git-scm.com/ -That page has pointers to documentation and tutorials. One should be -aware, in particular, of the Kernel Hacker's Guide to git, which has -information specific to kernel development: - - http://linux.yyz.us/git-howto.html +That page has pointers to documentation and tutorials. Among the kernel developers who do not use git, the most popular choice is almost certainly Mercurial: @@ -408,7 +407,7 @@ There are a few hints which can help with linux-kernel survival: important to filter on both the topic of interest (though note that long-running conversations can drift away from the original subject without changing the email subject line) and the people who are - participating. + participating. - Do not feed the trolls. If somebody is trying to stir up an angry response, ignore them. diff --git a/Documentation/development-process/3.Early-stage b/Documentation/development-process/3.Early-stage index 307a159a70ca..f87ba7b3fbac 100644 --- a/Documentation/development-process/3.Early-stage +++ b/Documentation/development-process/3.Early-stage @@ -110,8 +110,8 @@ the kernel community's standards. Some examples include: - The AppArmor security module made use of internal virtual filesystem data structures in ways which were considered to be unsafe and - unreliable. This code has since been significantly reworked, but - remains outside of the mainline. + unreliable. This concern (among others) kept AppArmor out of the + mainline for years. In each of these cases, a great deal of pain and extra work could have been avoided with some early discussion with the kernel developers. @@ -138,6 +138,19 @@ patches, and who, if anybody, is attaching Signed-off-by lines to those patches. Those are the people who will be best placed to help with a new development project. +The task of finding the right maintainer is sometimes challenging enough +that the kernel developers have added a script to ease the process: + + .../scripts/get_maintainer.pl + +This script will return the current maintainer(s) for a given file or +directory when given the "-f" option. If passed a patch on the +command line, it will list the maintainers who should probably receive +copies of the patch. There are a number of options regulating how hard +get_maintainer.pl will search for maintainers; please be careful about +using the more aggressive options as you may end up including developers +who have no real interest in the code you are modifying. + If all else fails, talking to Andrew Morton can be an effective way to track down a maintainer for a specific piece of code. @@ -155,11 +168,15 @@ reaction, but, instead, little or no reaction at all. The sad truth of the matter is (1) kernel developers tend to be busy, (2) there is no shortage of people with grand plans and little code (or even prospect of code) to back them up, and (3) nobody is obligated to review or comment on ideas -posted by others. If a request-for-comments posting yields little in the -way of comments, do not assume that it means there is no interest in the -project. Unfortunately, you also cannot assume that there are no problems -with your idea. The best thing to do in this situation is to proceed, -keeping the community informed as you go. +posted by others. Beyond that, high-level designs often hide problems +which are only reviewed when somebody actually tries to implement those +designs; for that reason, kernel developers would rather see the code. + +If a request-for-comments posting yields little in the way of comments, do +not assume that it means there is no interest in the project. +Unfortunately, you also cannot assume that there are no problems with your +idea. The best thing to do in this situation is to proceed, keeping the +community informed as you go. 3.5: GETTING OFFICIAL BUY-IN diff --git a/Documentation/development-process/4.Coding b/Documentation/development-process/4.Coding index 2278693c8ffa..f3f1a469443c 100644 --- a/Documentation/development-process/4.Coding +++ b/Documentation/development-process/4.Coding @@ -131,6 +131,11 @@ classic time/space tradeoff taught in beginning data structures classes often does not apply to contemporary hardware. Space *is* time, in that a larger program will run slower than one which is more compact. +More recent compilers take an increasingly active role in deciding whether +a given function should actually be inlined or not. So the liberal +placement of "inline" keywords may not just be excessive; it could also be +irrelevant. + * Locking @@ -285,6 +290,13 @@ be found at https://sparse.wiki.kernel.org/index.php/Main_Page if your distributor does not package it); it can then be run on the code by adding "C=1" to your make command. +The "Coccinelle" tool (http://coccinelle.lip6.fr/) is able to find a wide +variety of potential coding problems; it can also propose fixes for those +problems. Quite a few "semantic patches" for the kernel have been packaged +under the scripts/coccinelle directory; running "make coccicheck" will run +through those semantic patches and report on any problems found. See +Documentation/coccinelle.txt for more information. + Other kinds of portability errors are best found by compiling your code for other architectures. If you do not happen to have an S/390 system or a Blackfin development board handy, you can still perform the compilation @@ -308,7 +320,9 @@ The first piece of documentation for any patch is its associated changelog. Log entries should describe the problem being solved, the form of the solution, the people who worked on the patch, any relevant effects on performance, and anything else that might be needed to -understand the patch. +understand the patch. Be sure that the changelog says *why* the patch is +worth applying; a surprising number of developers fail to provide that +information. Any code which adds a new user-space interface - including new sysfs or /proc files - should include documentation of that interface which enables @@ -321,7 +335,7 @@ boot-time parameters. Any patch which adds new parameters should add the appropriate entries to this file. Any new configuration options must be accompanied by help text which -clearly explains the options and when the user might want to select them. +clearly explains the options and when the user might want to select them. Internal API information for many subsystems is documented by way of specially-formatted comments; these comments can be extracted and formatted @@ -372,7 +386,8 @@ which is broken by the change. For a widely-used function, this duty can lead to literally hundreds or thousands of changes - many of which are likely to conflict with work being done by other developers. Needless to say, this can be a large job, so it is best to be sure that the -justification is solid. +justification is solid. Note that the Coccinelle tool can help with +wide-ranging API changes. When making an incompatible API change, one should, whenever possible, ensure that code which has not been updated is caught by the compiler. diff --git a/Documentation/development-process/5.Posting b/Documentation/development-process/5.Posting index f622c1e9f0f9..903a2546f138 100644 --- a/Documentation/development-process/5.Posting +++ b/Documentation/development-process/5.Posting @@ -60,12 +60,15 @@ even in the short term. Patches must be prepared against a specific version of the kernel. As a general rule, a patch should be based on the current mainline as found in -Linus's git tree. It may become necessary to make versions against -mm, -linux-next, or a subsystem tree, though, to facilitate wider testing and -review. Depending on the area of your patch and what is going on -elsewhere, basing a patch against these other trees can require a -significant amount of work resolving conflicts and dealing with API -changes. +Linus's git tree. When basing on mainline, start with a well-known release +point - a stable or -rc release - rather than branching off the mainline at +an arbitrary spot. + +It may become necessary to make versions against -mm, linux-next, or a +subsystem tree, though, to facilitate wider testing and review. Depending +on the area of your patch and what is going on elsewhere, basing a patch +against these other trees can require a significant amount of work +resolving conflicts and dealing with API changes. Only the most simple changes should be formatted as a single patch; everything else should be made as a logical series of changes. Splitting @@ -100,11 +103,11 @@ rules of thumb, however, which can help considerably: result is a broken kernel, you will make life harder for developers and users who are engaging in the noble work of tracking down problems. - - Do not overdo it, though. One developer recently posted a set of edits + - Do not overdo it, though. One developer once posted a set of edits to a single file as 500 separate patches - an act which did not make him the most popular person on the kernel mailing list. A single patch can be reasonably large as long as it still contains a single *logical* - change. + change. - It can be tempting to add a whole new infrastructure with a series of patches, but to leave that infrastructure unused until the final patch @@ -162,7 +165,8 @@ To that end, the summary line should describe the effects of and motivation for the change as well as possible given the one-line constraint. The detailed description can then amplify on those topics and provide any needed additional information. If the patch fixes a bug, cite the commit -which introduced the bug if possible. If a problem is associated with +which introduced the bug if possible (and please provide both the commit ID +and the title when citing commits). If a problem is associated with specific log or compiler output, include that output to help others searching for a solution to the same problem. If the change is meant to support other changes coming in later patch, say so. If internal APIs are @@ -230,7 +234,7 @@ take care of: which have had gratuitous white-space changes or line wrapping performed by the mail client will not apply at the other end, and often will not be examined in any detail. If there is any doubt at all, mail the patch - to yourself and convince yourself that it shows up intact. + to yourself and convince yourself that it shows up intact. Documentation/email-clients.txt has some helpful hints on making specific mail clients work for sending patches. @@ -287,7 +291,7 @@ something like: where "nn" is the ordinal number of the patch, "mm" is the total number of patches in the series, and "subsys" is the name of the affected subsystem. -Clearly, nn/mm can be omitted for a single, standalone patch. +Clearly, nn/mm can be omitted for a single, standalone patch. If you have a significant series of patches, it is customary to send an introductory description as part zero. This convention is not universally @@ -299,5 +303,5 @@ In general, the second and following parts of a multi-part patch should be sent as a reply to the first part so that they all thread together at the receiving end. Tools like git and quilt have commands to mail out a set of patches with the proper threading. If you have a long series, though, and -are using git, please provide the --no-chain-reply-to option to avoid +are using git, please stay away from the --chain-reply-to option to avoid creating exceptionally deep nesting. diff --git a/Documentation/development-process/6.Followthrough b/Documentation/development-process/6.Followthrough index a8fba3d83a85..41d324a9420d 100644 --- a/Documentation/development-process/6.Followthrough +++ b/Documentation/development-process/6.Followthrough @@ -66,6 +66,11 @@ be easy to become blinded by your own solution to a problem to the point that you don't realize that something is fundamentally wrong or, perhaps, you're not even solving the right problem. +Andrew Morton has suggested that every review comment which does not result +in a code change should result in an additional code comment instead; that +can help future reviewers avoid the questions which came up the first time +around. + One fatal mistake is to ignore review comments in the hope that they will go away. They will not go away. If you repost code without having responded to the comments you got the time before, you're likely to find @@ -100,7 +105,7 @@ entry into a subsystem maintainer's tree. How that works varies from one subsystem to the next; each maintainer has his or her own way of doing things. In particular, there may be more than one tree - one, perhaps, dedicated to patches planned for the next merge window, and another for -longer-term work. +longer-term work. For patches applying to areas for which there is no obvious subsystem tree (memory management patches, for example), the default tree often ends up @@ -109,11 +114,10 @@ through the -mm tree. Inclusion into a subsystem tree can bring a higher level of visibility to a patch. Now other developers working with that tree will get the patch by -default. Subsystem trees typically feed into -mm and linux-next as well, -making their contents visible to the development community as a whole. At -this point, there's a good chance that you will get more comments from a -new set of reviewers; these comments need to be answered as in the previous -round. +default. Subsystem trees typically feed linux-next as well, making their +contents visible to the development community as a whole. At this point, +there's a good chance that you will get more comments from a new set of +reviewers; these comments need to be answered as in the previous round. What may also happen at this point, depending on the nature of your patch, is that conflicts with work being done by others turn up. In the worst diff --git a/Documentation/development-process/7.AdvancedTopics b/Documentation/development-process/7.AdvancedTopics index 837179447e17..26dc3fa196e4 100644 --- a/Documentation/development-process/7.AdvancedTopics +++ b/Documentation/development-process/7.AdvancedTopics @@ -119,7 +119,7 @@ can affect your ability to get trees pulled in the future. Quoting Linus: to trust things *without* then having to go and check every individual change by hand. -(http://lwn.net/Articles/224135/). +(http://lwn.net/Articles/224135/). To avoid this kind of situation, ensure that all patches within a given branch stick closely to the associated topic; a "driver fixes" branch @@ -138,7 +138,7 @@ When requesting a pull, be sure to give all the relevant information: where your tree is, what branch to pull, and what changes will result from the pull. The git request-pull command can be helpful in this regard; it will format the request as other developers expect, and will also check to be -sure that you have remembered to push those changes to the public server. +sure that you have remembered to push those changes to the public server. 7.2: REVIEWING PATCHES -- cgit v1.2.3 From adb4b83c12f9d966ea3478aa14c60511467c9916 Mon Sep 17 00:00:00 2001 From: Dan Carpenter <error27@gmail.com> Date: Mon, 15 Mar 2010 07:28:00 -0500 Subject: kgdboc,kgdbts: strlen() doesn't count the terminator This is an off by one because strlen() doesn't count the null terminator. We strcpy() these strings into an array of size MAX_CONFIG_LEN. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> --- drivers/misc/kgdbts.c | 2 +- drivers/tty/serial/kgdboc.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c index 59c118c19a91..27dc463097f3 100644 --- a/drivers/misc/kgdbts.c +++ b/drivers/misc/kgdbts.c @@ -988,7 +988,7 @@ static void kgdbts_run_tests(void) static int kgdbts_option_setup(char *opt) { - if (strlen(opt) > MAX_CONFIG_LEN) { + if (strlen(opt) >= MAX_CONFIG_LEN) { printk(KERN_ERR "kgdbts: config string too long\n"); return -ENOSPC; } diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c index 25a8bc565f40..87e7e6c876d4 100644 --- a/drivers/tty/serial/kgdboc.c +++ b/drivers/tty/serial/kgdboc.c @@ -131,7 +131,7 @@ static void kgdboc_unregister_kbd(void) static int kgdboc_option_setup(char *opt) { - if (strlen(opt) > MAX_CONFIG_LEN) { + if (strlen(opt) >= MAX_CONFIG_LEN) { printk(KERN_ERR "kgdboc: config string too long\n"); return -ENOSPC; } -- cgit v1.2.3 From 27029c339b1beebe79bb4e64422ad1bb8d0b6440 Mon Sep 17 00:00:00 2001 From: Jovi Zhang <bookjovi@gmail.com> Date: Mon, 15 Mar 2010 07:28:00 -0500 Subject: kdb: code cleanup to use macro instead of value It's better to use macro KDB_BASE_CMD_MAX instead of 50 Signed-off-by: Jovi Zhang <bookjovi@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> --- kernel/debug/kdb/kdb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index bd3e8e29caa3..38a85428c70f 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -78,7 +78,7 @@ static unsigned int kdb_continue_catastrophic; static kdbtab_t *kdb_commands; #define KDB_BASE_CMD_MAX 50 static int kdb_max_commands = KDB_BASE_CMD_MAX; -static kdbtab_t kdb_base_commands[50]; +static kdbtab_t kdb_base_commands[KDB_BASE_CMD_MAX]; #define for_each_kdbcmd(cmd, num) \ for ((cmd) = kdb_base_commands, (num) = 0; \ num < kdb_max_commands; \ -- cgit v1.2.3 From 21431c2900a0b669080b5bfaae2a7d9d9c026e9b Mon Sep 17 00:00:00 2001 From: Jason Wessel <jason.wessel@windriver.com> Date: Mon, 15 Mar 2010 07:28:00 -0500 Subject: kgdb,x86_64: fix compile warning found with sparse Fix sparse warning: arch/x86/kernel/kgdb.c:123:9: warning: switch with no cases Reported-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> --- arch/x86/kernel/kgdb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index a4130005028a..3c2fb0f25abd 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -121,8 +121,8 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs) memcpy(mem, (void *)regs + dbg_reg_def[regno].offset, dbg_reg_def[regno].size); - switch (regno) { #ifdef CONFIG_X86_32 + switch (regno) { case GDB_SS: if (!user_mode_vm(regs)) *(unsigned long *)mem = __KERNEL_DS; @@ -135,8 +135,8 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs) case GDB_FS: *(unsigned long *)mem = 0xFFFF; break; -#endif } +#endif return dbg_reg_def[regno].name; } -- cgit v1.2.3 From 0d3db28daed2529ab90933a3aaaaf46446fdfda8 Mon Sep 17 00:00:00 2001 From: Namhyung Kim <namhyung@gmail.com> Date: Mon, 15 Mar 2010 07:28:00 -0500 Subject: kdb: add usage string of 'per_cpu' command Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> --- kernel/debug/kdb/kdb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 38a85428c70f..6bc6e3bc4f9c 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -2892,7 +2892,7 @@ static void __init kdb_inittab(void) "Send a signal to a process", 0, KDB_REPEAT_NONE); kdb_register_repeat("summary", kdb_summary, "", "Summarize the system", 4, KDB_REPEAT_NONE); - kdb_register_repeat("per_cpu", kdb_per_cpu, "", + kdb_register_repeat("per_cpu", kdb_per_cpu, "<sym> [<bytes>] [<cpu>]", "Display per_cpu variables", 3, KDB_REPEAT_NONE); kdb_register_repeat("grephelp", kdb_grep_help, "", "Display help on | grep", 0, KDB_REPEAT_NONE); -- cgit v1.2.3 From 9263412501022fecef844907129ee2513b5a89de Mon Sep 17 00:00:00 2001 From: Maxim Levitsky <maximlevitsky@gmail.com> Date: Fri, 25 Mar 2011 01:56:59 -0700 Subject: memstick: add driver for Ricoh R5C592 card reader Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Acked-by: Alex Dubov <oakad@yahoo.com> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- MAINTAINERS | 5 + drivers/memstick/host/Kconfig | 12 + drivers/memstick/host/Makefile | 1 + drivers/memstick/host/r592.c | 908 +++++++++++++++++++++++++++++++++++++++++ drivers/memstick/host/r592.h | 175 ++++++++ 5 files changed, 1101 insertions(+) create mode 100644 drivers/memstick/host/r592.c create mode 100644 drivers/memstick/host/r592.h diff --git a/MAINTAINERS b/MAINTAINERS index 749f9cd38089..4fb9017b4413 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5291,6 +5291,11 @@ S: Maintained F: drivers/mtd/nand/r852.c F: drivers/mtd/nand/r852.h +RICOH R5C592 MEMORYSTICK DRIVER +M: Maxim Levitsky <maximlevitsky@gmail.com> +S: Maintained +F: drivers/memstick/host/r592.* + RISCOM8 DRIVER S: Orphan F: Documentation/serial/riscom8.txt diff --git a/drivers/memstick/host/Kconfig b/drivers/memstick/host/Kconfig index 4ce5c8dffb68..cc0997a05171 100644 --- a/drivers/memstick/host/Kconfig +++ b/drivers/memstick/host/Kconfig @@ -30,3 +30,15 @@ config MEMSTICK_JMICRON_38X To compile this driver as a module, choose M here: the module will be called jmb38x_ms. + +config MEMSTICK_R592 + tristate "Ricoh R5C592 MemoryStick interface support (EXPERIMENTAL)" + depends on EXPERIMENTAL && PCI + + help + Say Y here if you want to be able to access MemoryStick cards with + the Ricoh R5C592 MemoryStick card reader (which is part of 5 in one + multifunction reader) + + To compile this driver as a module, choose M here: the module will + be called r592. diff --git a/drivers/memstick/host/Makefile b/drivers/memstick/host/Makefile index a1815e9dd019..31ba8d378e46 100644 --- a/drivers/memstick/host/Makefile +++ b/drivers/memstick/host/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_MEMSTICK_TIFM_MS) += tifm_ms.o obj-$(CONFIG_MEMSTICK_JMICRON_38X) += jmb38x_ms.o +obj-$(CONFIG_MEMSTICK_R592) += r592.o diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c new file mode 100644 index 000000000000..767406c95291 --- /dev/null +++ b/drivers/memstick/host/r592.c @@ -0,0 +1,908 @@ +/* + * Copyright (C) 2010 - Maxim Levitsky + * driver for Ricoh memstick readers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/freezer.h> +#include <linux/jiffies.h> +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/kthread.h> +#include <linux/sched.h> +#include <linux/highmem.h> +#include <asm/byteorder.h> +#include <linux/swab.h> +#include "r592.h" + +static int enable_dma = 1; +static int debug; + +static const char *tpc_names[] = { + "MS_TPC_READ_MG_STATUS", + "MS_TPC_READ_LONG_DATA", + "MS_TPC_READ_SHORT_DATA", + "MS_TPC_READ_REG", + "MS_TPC_READ_QUAD_DATA", + "INVALID", + "MS_TPC_GET_INT", + "MS_TPC_SET_RW_REG_ADRS", + "MS_TPC_EX_SET_CMD", + "MS_TPC_WRITE_QUAD_DATA", + "MS_TPC_WRITE_REG", + "MS_TPC_WRITE_SHORT_DATA", + "MS_TPC_WRITE_LONG_DATA", + "MS_TPC_SET_CMD", +}; + +/** + * memstick_debug_get_tpc_name - debug helper that returns string for + * a TPC number + */ +const char *memstick_debug_get_tpc_name(int tpc) +{ + return tpc_names[tpc-1]; +} +EXPORT_SYMBOL(memstick_debug_get_tpc_name); + + +/* Read a register*/ +static inline u32 r592_read_reg(struct r592_device *dev, int address) +{ + u32 value = readl(dev->mmio + address); + dbg_reg("reg #%02d == 0x%08x", address, value); + return value; +} + +/* Write a register */ +static inline void r592_write_reg(struct r592_device *dev, + int address, u32 value) +{ + dbg_reg("reg #%02d <- 0x%08x", address, value); + writel(value, dev->mmio + address); +} + +/* Reads a big endian DWORD register */ +static inline u32 r592_read_reg_raw_be(struct r592_device *dev, int address) +{ + u32 value = __raw_readl(dev->mmio + address); + dbg_reg("reg #%02d == 0x%08x", address, value); + return be32_to_cpu(value); +} + +/* Writes a big endian DWORD register */ +static inline void r592_write_reg_raw_be(struct r592_device *dev, + int address, u32 value) +{ + dbg_reg("reg #%02d <- 0x%08x", address, value); + __raw_writel(cpu_to_be32(value), dev->mmio + address); +} + +/* Set specific bits in a register (little endian) */ +static inline void r592_set_reg_mask(struct r592_device *dev, + int address, u32 mask) +{ + u32 reg = readl(dev->mmio + address); + dbg_reg("reg #%02d |= 0x%08x (old =0x%08x)", address, mask, reg); + writel(reg | mask , dev->mmio + address); +} + +/* Clear specific bits in a register (little endian) */ +static inline void r592_clear_reg_mask(struct r592_device *dev, + int address, u32 mask) +{ + u32 reg = readl(dev->mmio + address); + dbg_reg("reg #%02d &= 0x%08x (old = 0x%08x, mask = 0x%08x)", + address, ~mask, reg, mask); + writel(reg & ~mask, dev->mmio + address); +} + + +/* Wait for status bits while checking for errors */ +static int r592_wait_status(struct r592_device *dev, u32 mask, u32 wanted_mask) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(1000); + u32 reg = r592_read_reg(dev, R592_STATUS); + + if ((reg & mask) == wanted_mask) + return 0; + + while (time_before(jiffies, timeout)) { + + reg = r592_read_reg(dev, R592_STATUS); + + if ((reg & mask) == wanted_mask) + return 0; + + if (reg & (R592_STATUS_SEND_ERR | R592_STATUS_RECV_ERR)) + return -EIO; + + cpu_relax(); + } + return -ETIME; +} + + +/* Enable/disable device */ +static int r592_enable_device(struct r592_device *dev, bool enable) +{ + dbg("%sabling the device", enable ? "en" : "dis"); + + if (enable) { + + /* Power up the card */ + r592_write_reg(dev, R592_POWER, R592_POWER_0 | R592_POWER_1); + + /* Perform a reset */ + r592_set_reg_mask(dev, R592_IO, R592_IO_RESET); + + msleep(100); + } else + /* Power down the card */ + r592_write_reg(dev, R592_POWER, 0); + + return 0; +} + +/* Set serial/parallel mode */ +static int r592_set_mode(struct r592_device *dev, bool parallel_mode) +{ + if (!parallel_mode) { + dbg("switching to serial mode"); + + /* Set serial mode */ + r592_write_reg(dev, R592_IO_MODE, R592_IO_MODE_SERIAL); + + r592_clear_reg_mask(dev, R592_POWER, R592_POWER_20); + + } else { + dbg("switching to parallel mode"); + + /* This setting should be set _before_ switch TPC */ + r592_set_reg_mask(dev, R592_POWER, R592_POWER_20); + + r592_clear_reg_mask(dev, R592_IO, + R592_IO_SERIAL1 | R592_IO_SERIAL2); + + /* Set the parallel mode now */ + r592_write_reg(dev, R592_IO_MODE, R592_IO_MODE_PARALLEL); + } + + dev->parallel_mode = parallel_mode; + return 0; +} + +/* Perform a controller reset without powering down the card */ +static void r592_host_reset(struct r592_device *dev) +{ + r592_set_reg_mask(dev, R592_IO, R592_IO_RESET); + msleep(100); + r592_set_mode(dev, dev->parallel_mode); +} + +/* Disable all hardware interrupts */ +static void r592_clear_interrupts(struct r592_device *dev) +{ + /* Disable & ACK all interrupts */ + r592_clear_reg_mask(dev, R592_REG_MSC, IRQ_ALL_ACK_MASK); + r592_clear_reg_mask(dev, R592_REG_MSC, IRQ_ALL_EN_MASK); +} + +/* Tests if there is an CRC error */ +static int r592_test_io_error(struct r592_device *dev) +{ + if (!(r592_read_reg(dev, R592_STATUS) & + (R592_STATUS_SEND_ERR | R592_STATUS_RECV_ERR))) + return 0; + + return -EIO; +} + +/* Ensure that FIFO is ready for use */ +static int r592_test_fifo_empty(struct r592_device *dev) +{ + if (r592_read_reg(dev, R592_REG_MSC) & R592_REG_MSC_FIFO_EMPTY) + return 0; + + dbg("FIFO not ready, trying to reset the device"); + r592_host_reset(dev); + + if (r592_read_reg(dev, R592_REG_MSC) & R592_REG_MSC_FIFO_EMPTY) + return 0; + + message("FIFO still not ready, giving up"); + return -EIO; +} + +/* Activates the DMA transfer from to FIFO */ +static void r592_start_dma(struct r592_device *dev, bool is_write) +{ + unsigned long flags; + u32 reg; + spin_lock_irqsave(&dev->irq_lock, flags); + + /* Ack interrupts (just in case) + enable them */ + r592_clear_reg_mask(dev, R592_REG_MSC, DMA_IRQ_ACK_MASK); + r592_set_reg_mask(dev, R592_REG_MSC, DMA_IRQ_EN_MASK); + + /* Set DMA address */ + r592_write_reg(dev, R592_FIFO_DMA, sg_dma_address(&dev->req->sg)); + + /* Enable the DMA */ + reg = r592_read_reg(dev, R592_FIFO_DMA_SETTINGS); + reg |= R592_FIFO_DMA_SETTINGS_EN; + + if (!is_write) + reg |= R592_FIFO_DMA_SETTINGS_DIR; + else + reg &= ~R592_FIFO_DMA_SETTINGS_DIR; + r592_write_reg(dev, R592_FIFO_DMA_SETTINGS, reg); + + spin_unlock_irqrestore(&dev->irq_lock, flags); +} + +/* Cleanups DMA related settings */ +static void r592_stop_dma(struct r592_device *dev, int error) +{ + r592_clear_reg_mask(dev, R592_FIFO_DMA_SETTINGS, + R592_FIFO_DMA_SETTINGS_EN); + + /* This is only a precation */ + r592_write_reg(dev, R592_FIFO_DMA, + dev->dummy_dma_page_physical_address); + + r592_clear_reg_mask(dev, R592_REG_MSC, DMA_IRQ_EN_MASK); + r592_clear_reg_mask(dev, R592_REG_MSC, DMA_IRQ_ACK_MASK); + dev->dma_error = error; +} + +/* Test if hardware supports DMA */ +static void r592_check_dma(struct r592_device *dev) +{ + dev->dma_capable = enable_dma && + (r592_read_reg(dev, R592_FIFO_DMA_SETTINGS) & + R592_FIFO_DMA_SETTINGS_CAP); +} + +/* Transfers fifo contents in/out using DMA */ +static int r592_transfer_fifo_dma(struct r592_device *dev) +{ + int len, sg_count; + bool is_write; + + if (!dev->dma_capable || !dev->req->long_data) + return -EINVAL; + + len = dev->req->sg.length; + is_write = dev->req->data_dir == WRITE; + + if (len != R592_LFIFO_SIZE) + return -EINVAL; + + dbg_verbose("doing dma transfer"); + + dev->dma_error = 0; + INIT_COMPLETION(dev->dma_done); + + /* TODO: hidden assumption about nenth beeing always 1 */ + sg_count = dma_map_sg(&dev->pci_dev->dev, &dev->req->sg, 1, is_write ? + PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); + + if (sg_count != 1 || + (sg_dma_len(&dev->req->sg) < dev->req->sg.length)) { + message("problem in dma_map_sg"); + return -EIO; + } + + r592_start_dma(dev, is_write); + + /* Wait for DMA completion */ + if (!wait_for_completion_timeout( + &dev->dma_done, msecs_to_jiffies(1000))) { + message("DMA timeout"); + r592_stop_dma(dev, -ETIMEDOUT); + } + + dma_unmap_sg(&dev->pci_dev->dev, &dev->req->sg, 1, is_write ? + PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); + + + return dev->dma_error; +} + +/* + * Writes the FIFO in 4 byte chunks. + * If length isn't 4 byte aligned, rest of the data if put to a fifo + * to be written later + * Use r592_flush_fifo_write to flush that fifo when writing for the + * last time + */ +static void r592_write_fifo_pio(struct r592_device *dev, + unsigned char *buffer, int len) +{ + /* flush spill from former write */ + if (!kfifo_is_empty(&dev->pio_fifo)) { + + u8 tmp[4] = {0}; + int copy_len = kfifo_in(&dev->pio_fifo, buffer, len); + + if (!kfifo_is_full(&dev->pio_fifo)) + return; + len -= copy_len; + buffer += copy_len; + + copy_len = kfifo_out(&dev->pio_fifo, tmp, 4); + WARN_ON(copy_len != 4); + r592_write_reg_raw_be(dev, R592_FIFO_PIO, *(u32 *)tmp); + } + + WARN_ON(!kfifo_is_empty(&dev->pio_fifo)); + + /* write full dwords */ + while (len >= 4) { + r592_write_reg_raw_be(dev, R592_FIFO_PIO, *(u32 *)buffer); + buffer += 4; + len -= 4; + } + + /* put remaining bytes to the spill */ + if (len) + kfifo_in(&dev->pio_fifo, buffer, len); +} + +/* Flushes the temporary FIFO used to make aligned DWORD writes */ +static void r592_flush_fifo_write(struct r592_device *dev) +{ + u8 buffer[4] = { 0 }; + int len; + + if (kfifo_is_empty(&dev->pio_fifo)) + return; + + len = kfifo_out(&dev->pio_fifo, buffer, 4); + r592_write_reg_raw_be(dev, R592_FIFO_PIO, *(u32 *)buffer); +} + +/* + * Read a fifo in 4 bytes chunks. + * If input doesn't fit the buffer, it places bytes of last dword in spill + * buffer, so that they don't get lost on last read, just throw these away. + */ +static void r592_read_fifo_pio(struct r592_device *dev, + unsigned char *buffer, int len) +{ + u8 tmp[4]; + + /* Read from last spill */ + if (!kfifo_is_empty(&dev->pio_fifo)) { + int bytes_copied = + kfifo_out(&dev->pio_fifo, buffer, min(4, len)); + buffer += bytes_copied; + len -= bytes_copied; + + if (!kfifo_is_empty(&dev->pio_fifo)) + return; + } + + /* Reads dwords from FIFO */ + while (len >= 4) { + *(u32 *)buffer = r592_read_reg_raw_be(dev, R592_FIFO_PIO); + buffer += 4; + len -= 4; + } + + if (len) { + *(u32 *)tmp = r592_read_reg_raw_be(dev, R592_FIFO_PIO); + kfifo_in(&dev->pio_fifo, tmp, 4); + len -= kfifo_out(&dev->pio_fifo, buffer, len); + } + + WARN_ON(len); + return; +} + +/* Transfers actual data using PIO. */ +static int r592_transfer_fifo_pio(struct r592_device *dev) +{ + unsigned long flags; + + bool is_write = dev->req->tpc >= MS_TPC_SET_RW_REG_ADRS; + struct sg_mapping_iter miter; + + kfifo_reset(&dev->pio_fifo); + + if (!dev->req->long_data) { + if (is_write) { + r592_write_fifo_pio(dev, dev->req->data, + dev->req->data_len); + r592_flush_fifo_write(dev); + } else + r592_read_fifo_pio(dev, dev->req->data, + dev->req->data_len); + return 0; + } + + local_irq_save(flags); + sg_miter_start(&miter, &dev->req->sg, 1, SG_MITER_ATOMIC | + (is_write ? SG_MITER_FROM_SG : SG_MITER_TO_SG)); + + /* Do the transfer fifo<->memory*/ + while (sg_miter_next(&miter)) + if (is_write) + r592_write_fifo_pio(dev, miter.addr, miter.length); + else + r592_read_fifo_pio(dev, miter.addr, miter.length); + + + /* Write last few non aligned bytes*/ + if (is_write) + r592_flush_fifo_write(dev); + + sg_miter_stop(&miter); + local_irq_restore(flags); + return 0; +} + +/* Executes one TPC (data is read/written from small or large fifo) */ +static void r592_execute_tpc(struct r592_device *dev) +{ + bool is_write = dev->req->tpc >= MS_TPC_SET_RW_REG_ADRS; + int len, error; + u32 status, reg; + + if (!dev->req) { + message("BUG: tpc execution without request!"); + return; + } + + len = dev->req->long_data ? + dev->req->sg.length : dev->req->data_len; + + /* Ensure that FIFO can hold the input data */ + if (len > R592_LFIFO_SIZE) { + message("IO: hardware doesn't support TPCs longer that 512"); + error = -ENOSYS; + goto out; + } + + if (!(r592_read_reg(dev, R592_REG_MSC) & R592_REG_MSC_PRSNT)) { + dbg("IO: refusing to send TPC because card is absent"); + error = -ENODEV; + goto out; + } + + dbg("IO: executing %s LEN=%d", + memstick_debug_get_tpc_name(dev->req->tpc), len); + + /* Set IO direction */ + if (is_write) + r592_set_reg_mask(dev, R592_IO, R592_IO_DIRECTION); + else + r592_clear_reg_mask(dev, R592_IO, R592_IO_DIRECTION); + + + error = r592_test_fifo_empty(dev); + if (error) + goto out; + + /* Transfer write data */ + if (is_write) { + error = r592_transfer_fifo_dma(dev); + if (error == -EINVAL) + error = r592_transfer_fifo_pio(dev); + } + + if (error) + goto out; + + /* Trigger the TPC */ + reg = (len << R592_TPC_EXEC_LEN_SHIFT) | + (dev->req->tpc << R592_TPC_EXEC_TPC_SHIFT) | + R592_TPC_EXEC_BIG_FIFO; + + r592_write_reg(dev, R592_TPC_EXEC, reg); + + /* Wait for TPC completion */ + status = R592_STATUS_RDY; + if (dev->req->need_card_int) + status |= R592_STATUS_CED; + + error = r592_wait_status(dev, status, status); + if (error) { + message("card didn't respond"); + goto out; + } + + /* Test IO errors */ + error = r592_test_io_error(dev); + if (error) { + dbg("IO error"); + goto out; + } + + /* Read data from FIFO */ + if (!is_write) { + error = r592_transfer_fifo_dma(dev); + if (error == -EINVAL) + error = r592_transfer_fifo_pio(dev); + } + + /* read INT reg. This can be shortened with shifts, but that way + its more readable */ + if (dev->parallel_mode && dev->req->need_card_int) { + + dev->req->int_reg = 0; + status = r592_read_reg(dev, R592_STATUS); + + if (status & R592_STATUS_P_CMDNACK) + dev->req->int_reg |= MEMSTICK_INT_CMDNAK; + if (status & R592_STATUS_P_BREQ) + dev->req->int_reg |= MEMSTICK_INT_BREQ; + if (status & R592_STATUS_P_INTERR) + dev->req->int_reg |= MEMSTICK_INT_ERR; + if (status & R592_STATUS_P_CED) + dev->req->int_reg |= MEMSTICK_INT_CED; + } + + if (error) + dbg("FIFO read error"); +out: + dev->req->error = error; + r592_clear_reg_mask(dev, R592_REG_MSC, R592_REG_MSC_LED); + return; +} + +/* Main request processing thread */ +static int r592_process_thread(void *data) +{ + int error; + struct r592_device *dev = (struct r592_device *)data; + unsigned long flags; + + while (!kthread_should_stop()) { + spin_lock_irqsave(&dev->io_thread_lock, flags); + set_current_state(TASK_INTERRUPTIBLE); + error = memstick_next_req(dev->host, &dev->req); + spin_unlock_irqrestore(&dev->io_thread_lock, flags); + + if (error) { + if (error == -ENXIO || error == -EAGAIN) { + dbg_verbose("IO: done IO, sleeping"); + } else { + dbg("IO: unknown error from " + "memstick_next_req %d", error); + } + + if (kthread_should_stop()) + set_current_state(TASK_RUNNING); + + schedule(); + } else { + set_current_state(TASK_RUNNING); + r592_execute_tpc(dev); + } + } + return 0; +} + +/* Reprogram chip to detect change in card state */ +/* eg, if card is detected, arm it to detect removal, and vice versa */ +static void r592_update_card_detect(struct r592_device *dev) +{ + u32 reg = r592_read_reg(dev, R592_REG_MSC); + bool card_detected = reg & R592_REG_MSC_PRSNT; + + dbg("update card detect. card state: %s", card_detected ? + "present" : "absent"); + + reg &= ~((R592_REG_MSC_IRQ_REMOVE | R592_REG_MSC_IRQ_INSERT) << 16); + + if (card_detected) + reg |= (R592_REG_MSC_IRQ_REMOVE << 16); + else + reg |= (R592_REG_MSC_IRQ_INSERT << 16); + + r592_write_reg(dev, R592_REG_MSC, reg); +} + +/* Timer routine that fires 1 second after last card detection event, */ +static void r592_detect_timer(long unsigned int data) +{ + struct r592_device *dev = (struct r592_device *)data; + r592_update_card_detect(dev); + memstick_detect_change(dev->host); +} + +/* Interrupt handler */ +static irqreturn_t r592_irq(int irq, void *data) +{ + struct r592_device *dev = (struct r592_device *)data; + irqreturn_t ret = IRQ_NONE; + u32 reg; + u16 irq_enable, irq_status; + unsigned long flags; + int error; + + spin_lock_irqsave(&dev->irq_lock, flags); + + reg = r592_read_reg(dev, R592_REG_MSC); + irq_enable = reg >> 16; + irq_status = reg & 0xFFFF; + + /* Ack the interrupts */ + reg &= ~irq_status; + r592_write_reg(dev, R592_REG_MSC, reg); + + /* Get the IRQ status minus bits that aren't enabled */ + irq_status &= (irq_enable); + + /* Due to limitation of memstick core, we don't look at bits that + indicate that card was removed/inserted and/or present */ + if (irq_status & (R592_REG_MSC_IRQ_INSERT | R592_REG_MSC_IRQ_REMOVE)) { + + bool card_was_added = irq_status & R592_REG_MSC_IRQ_INSERT; + ret = IRQ_HANDLED; + + message("IRQ: card %s", card_was_added ? "added" : "removed"); + + mod_timer(&dev->detect_timer, + jiffies + msecs_to_jiffies(card_was_added ? 500 : 50)); + } + + if (irq_status & + (R592_REG_MSC_FIFO_DMA_DONE | R592_REG_MSC_FIFO_DMA_ERR)) { + ret = IRQ_HANDLED; + + if (irq_status & R592_REG_MSC_FIFO_DMA_ERR) { + message("IRQ: DMA error"); + error = -EIO; + } else { + dbg_verbose("IRQ: dma done"); + error = 0; + } + + r592_stop_dma(dev, error); + complete(&dev->dma_done); + } + + spin_unlock_irqrestore(&dev->irq_lock, flags); + return ret; +} + +/* External inteface: set settings */ +static int r592_set_param(struct memstick_host *host, + enum memstick_param param, int value) +{ + struct r592_device *dev = memstick_priv(host); + + switch (param) { + case MEMSTICK_POWER: + switch (value) { + case MEMSTICK_POWER_ON: + return r592_enable_device(dev, true); + case MEMSTICK_POWER_OFF: + return r592_enable_device(dev, false); + default: + return -EINVAL; + } + case MEMSTICK_INTERFACE: + switch (value) { + case MEMSTICK_SERIAL: + return r592_set_mode(dev, 0); + case MEMSTICK_PAR4: + return r592_set_mode(dev, 1); + default: + return -EINVAL; + } + default: + return -EINVAL; + } +} + +/* External interface: submit requests */ +static void r592_submit_req(struct memstick_host *host) +{ + struct r592_device *dev = memstick_priv(host); + unsigned long flags; + + if (dev->req) + return; + + spin_lock_irqsave(&dev->io_thread_lock, flags); + if (wake_up_process(dev->io_thread)) + dbg_verbose("IO thread woken to process requests"); + spin_unlock_irqrestore(&dev->io_thread_lock, flags); +} + +static const struct pci_device_id r592_pci_id_tbl[] = { + + { PCI_VDEVICE(RICOH, 0x0592), }, + { }, +}; + +/* Main entry */ +static int r592_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + int error = -ENOMEM; + struct memstick_host *host; + struct r592_device *dev; + + /* Allocate memory */ + host = memstick_alloc_host(sizeof(struct r592_device), &pdev->dev); + if (!host) + goto error1; + + dev = memstick_priv(host); + dev->host = host; + dev->pci_dev = pdev; + pci_set_drvdata(pdev, dev); + + /* pci initialization */ + error = pci_enable_device(pdev); + if (error) + goto error2; + + pci_set_master(pdev); + error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (error) + goto error3; + + error = pci_request_regions(pdev, DRV_NAME); + if (error) + goto error3; + + dev->mmio = pci_ioremap_bar(pdev, 0); + if (!dev->mmio) + goto error4; + + dev->irq = pdev->irq; + spin_lock_init(&dev->irq_lock); + spin_lock_init(&dev->io_thread_lock); + init_completion(&dev->dma_done); + INIT_KFIFO(dev->pio_fifo); + setup_timer(&dev->detect_timer, + r592_detect_timer, (long unsigned int)dev); + + /* Host initialization */ + host->caps = MEMSTICK_CAP_PAR4; + host->request = r592_submit_req; + host->set_param = r592_set_param; + r592_check_dma(dev); + + dev->io_thread = kthread_run(r592_process_thread, dev, "r592_io"); + if (IS_ERR(dev->io_thread)) { + error = PTR_ERR(dev->io_thread); + goto error5; + } + + /* This is just a precation, so don't fail */ + dev->dummy_dma_page = pci_alloc_consistent(pdev, PAGE_SIZE, + &dev->dummy_dma_page_physical_address); + r592_stop_dma(dev , 0); + + if (request_irq(dev->irq, &r592_irq, IRQF_SHARED, + DRV_NAME, dev)) + goto error6; + + r592_update_card_detect(dev); + if (memstick_add_host(host)) + goto error7; + + message("driver succesfully loaded"); + return 0; +error7: + free_irq(dev->irq, dev); +error6: + if (dev->dummy_dma_page) + pci_free_consistent(pdev, PAGE_SIZE, dev->dummy_dma_page, + dev->dummy_dma_page_physical_address); + + kthread_stop(dev->io_thread); +error5: + iounmap(dev->mmio); +error4: + pci_release_regions(pdev); +error3: + pci_disable_device(pdev); +error2: + memstick_free_host(host); +error1: + return error; +} + +static void r592_remove(struct pci_dev *pdev) +{ + int error = 0; + struct r592_device *dev = pci_get_drvdata(pdev); + + /* Stop the processing thread. + That ensures that we won't take any more requests */ + kthread_stop(dev->io_thread); + + r592_enable_device(dev, false); + + while (!error && dev->req) { + dev->req->error = -ETIME; + error = memstick_next_req(dev->host, &dev->req); + } + memstick_remove_host(dev->host); + + free_irq(dev->irq, dev); + iounmap(dev->mmio); + pci_release_regions(pdev); + pci_disable_device(pdev); + memstick_free_host(dev->host); + + if (dev->dummy_dma_page) + pci_free_consistent(pdev, PAGE_SIZE, dev->dummy_dma_page, + dev->dummy_dma_page_physical_address); +} + +#ifdef CONFIG_PM +static int r592_suspend(struct device *core_dev) +{ + struct pci_dev *pdev = to_pci_dev(core_dev); + struct r592_device *dev = pci_get_drvdata(pdev); + + r592_clear_interrupts(dev); + memstick_suspend_host(dev->host); + del_timer_sync(&dev->detect_timer); + return 0; +} + +static int r592_resume(struct device *core_dev) +{ + struct pci_dev *pdev = to_pci_dev(core_dev); + struct r592_device *dev = pci_get_drvdata(pdev); + + r592_clear_interrupts(dev); + r592_enable_device(dev, false); + memstick_resume_host(dev->host); + r592_update_card_detect(dev); + return 0; +} + +SIMPLE_DEV_PM_OPS(r592_pm_ops, r592_suspend, r592_resume); +#endif + +MODULE_DEVICE_TABLE(pci, r592_pci_id_tbl); + +static struct pci_driver r852_pci_driver = { + .name = DRV_NAME, + .id_table = r592_pci_id_tbl, + .probe = r592_probe, + .remove = r592_remove, +#ifdef CONFIG_PM + .driver.pm = &r592_pm_ops, +#endif +}; + +static __init int r592_module_init(void) +{ + return pci_register_driver(&r852_pci_driver); +} + +static void __exit r592_module_exit(void) +{ + pci_unregister_driver(&r852_pci_driver); +} + +module_init(r592_module_init); +module_exit(r592_module_exit); + +module_param(enable_dma, bool, S_IRUGO); +MODULE_PARM_DESC(enable_dma, "Enable usage of the DMA (default)"); +module_param(debug, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug level (0-3)"); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Maxim Levitsky <maximlevitsky@gmail.com>"); +MODULE_DESCRIPTION("Ricoh R5C592 Memstick/Memstick PRO card reader driver"); diff --git a/drivers/memstick/host/r592.h b/drivers/memstick/host/r592.h new file mode 100644 index 000000000000..eee264e6028f --- /dev/null +++ b/drivers/memstick/host/r592.h @@ -0,0 +1,175 @@ +/* + * Copyright (C) 2010 - Maxim Levitsky + * driver for Ricoh memstick readers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef R592_H + +#include <linux/memstick.h> +#include <linux/spinlock.h> +#include <linux/interrupt.h> +#include <linux/workqueue.h> +#include <linux/kfifo.h> +#include <linux/ctype.h> + +/* write to this reg (number,len) triggers TPC execution */ +#define R592_TPC_EXEC 0x00 +#define R592_TPC_EXEC_LEN_SHIFT 16 /* Bits 16..25 are TPC len */ +#define R592_TPC_EXEC_BIG_FIFO (1 << 26) /* If bit 26 is set, large fifo is used (reg 48) */ +#define R592_TPC_EXEC_TPC_SHIFT 28 /* Bits 28..31 are the TPC number */ + + +/* Window for small TPC fifo (big endian)*/ +/* reads and writes always are done in 8 byte chunks */ +/* Not used in driver, because large fifo does better job */ +#define R592_SFIFO 0x08 + + +/* Status register (ms int, small fifo, IO)*/ +#define R592_STATUS 0x10 + /* Parallel INT bits */ +#define R592_STATUS_P_CMDNACK (1 << 16) /* INT reg: NACK (parallel mode) */ +#define R592_STATUS_P_BREQ (1 << 17) /* INT reg: card ready (parallel mode)*/ +#define R592_STATUS_P_INTERR (1 << 18) /* INT reg: int error (parallel mode)*/ +#define R592_STATUS_P_CED (1 << 19) /* INT reg: command done (parallel mode) */ + + /* Fifo status */ +#define R592_STATUS_SFIFO_FULL (1 << 20) /* Small Fifo almost full (last chunk is written) */ +#define R592_STATUS_SFIFO_EMPTY (1 << 21) /* Small Fifo empty */ + + /* Error detection via CRC */ +#define R592_STATUS_SEND_ERR (1 << 24) /* Send failed */ +#define R592_STATUS_RECV_ERR (1 << 25) /* Recieve failed */ + + /* Card state */ +#define R592_STATUS_RDY (1 << 28) /* RDY signal recieved */ +#define R592_STATUS_CED (1 << 29) /* INT: Command done (serial mode)*/ +#define R592_STATUS_SFIFO_INPUT (1 << 30) /* Small fifo recieved data*/ + +#define R592_SFIFO_SIZE 32 /* total size of small fifo is 32 bytes */ +#define R592_SFIFO_PACKET 8 /* packet size of small fifo */ + +/* IO control */ +#define R592_IO 0x18 +#define R592_IO_16 (1 << 16) /* Set by default, can be cleared */ +#define R592_IO_18 (1 << 18) /* Set by default, can be cleared */ +#define R592_IO_SERIAL1 (1 << 20) /* Set by default, can be cleared, (cleared on parallel) */ +#define R592_IO_22 (1 << 22) /* Set by default, can be cleared */ +#define R592_IO_DIRECTION (1 << 24) /* TPC direction (1 write 0 read) */ +#define R592_IO_26 (1 << 26) /* Set by default, can be cleared */ +#define R592_IO_SERIAL2 (1 << 30) /* Set by default, can be cleared (cleared on parallel), serial doesn't work if unset */ +#define R592_IO_RESET (1 << 31) /* Reset, sets defaults*/ + + +/* Turns hardware on/off */ +#define R592_POWER 0x20 /* bits 0-7 writeable */ +#define R592_POWER_0 (1 << 0) /* set on start, cleared on stop - must be set*/ +#define R592_POWER_1 (1 << 1) /* set on start, cleared on stop - must be set*/ +#define R592_POWER_3 (1 << 3) /* must be clear */ +#define R592_POWER_20 (1 << 5) /* set before switch to parallel */ + +/* IO mode*/ +#define R592_IO_MODE 0x24 +#define R592_IO_MODE_SERIAL 1 +#define R592_IO_MODE_PARALLEL 3 + + +/* IRQ,card detection,large fifo (first word irq status, second enable) */ +/* IRQs are ACKed by clearing the bits */ +#define R592_REG_MSC 0x28 +#define R592_REG_MSC_PRSNT (1 << 1) /* card present (only status)*/ +#define R592_REG_MSC_IRQ_INSERT (1 << 8) /* detect insert / card insered */ +#define R592_REG_MSC_IRQ_REMOVE (1 << 9) /* detect removal / card removed */ +#define R592_REG_MSC_FIFO_EMPTY (1 << 10) /* fifo is empty */ +#define R592_REG_MSC_FIFO_DMA_DONE (1 << 11) /* dma enable / dma done */ + +#define R592_REG_MSC_FIFO_USER_ORN (1 << 12) /* set if software reads empty fifo (if R592_REG_MSC_FIFO_EMPTY is set) */ +#define R592_REG_MSC_FIFO_MISMATH (1 << 13) /* set if amount of data in fifo doesn't match amount in TPC */ +#define R592_REG_MSC_FIFO_DMA_ERR (1 << 14) /* IO failure */ +#define R592_REG_MSC_LED (1 << 15) /* clear to turn led off (only status)*/ + +#define DMA_IRQ_ACK_MASK \ + (R592_REG_MSC_FIFO_DMA_DONE | R592_REG_MSC_FIFO_DMA_ERR) + +#define DMA_IRQ_EN_MASK (DMA_IRQ_ACK_MASK << 16) + +#define IRQ_ALL_ACK_MASK 0x00007F00 +#define IRQ_ALL_EN_MASK (IRQ_ALL_ACK_MASK << 16) + +/* DMA address for large FIFO read/writes*/ +#define R592_FIFO_DMA 0x2C + +/* PIO access to large FIFO (512 bytes) (big endian)*/ +#define R592_FIFO_PIO 0x30 +#define R592_LFIFO_SIZE 512 /* large fifo size */ + + +/* large FIFO DMA settings */ +#define R592_FIFO_DMA_SETTINGS 0x34 +#define R592_FIFO_DMA_SETTINGS_EN (1 << 0) /* DMA enabled */ +#define R592_FIFO_DMA_SETTINGS_DIR (1 << 1) /* Dma direction (1 read, 0 write) */ +#define R592_FIFO_DMA_SETTINGS_CAP (1 << 24) /* Dma is aviable */ + +/* Maybe just an delay */ +/* Bits 17..19 are just number */ +/* bit 16 is set, then bit 20 is waited */ +/* time to wait is about 50 spins * 2 ^ (bits 17..19) */ +/* seems to be possible just to ignore */ +/* Probably debug register */ +#define R592_REG38 0x38 +#define R592_REG38_CHANGE (1 << 16) /* Start bit */ +#define R592_REG38_DONE (1 << 20) /* HW set this after the delay */ +#define R592_REG38_SHIFT 17 + +/* Debug register, written (0xABCDEF00) when error happens - not used*/ +#define R592_REG_3C 0x3C + +struct r592_device { + struct pci_dev *pci_dev; + struct memstick_host *host; /* host backpointer */ + struct memstick_request *req; /* current request */ + + /* Registers, IRQ */ + void __iomem *mmio; + int irq; + spinlock_t irq_lock; + spinlock_t io_thread_lock; + struct timer_list detect_timer; + + struct task_struct *io_thread; + bool parallel_mode; + + DECLARE_KFIFO(pio_fifo, u8, sizeof(u32)); + + /* DMA area */ + int dma_capable; + int dma_error; + struct completion dma_done; + void *dummy_dma_page; + dma_addr_t dummy_dma_page_physical_address; + +}; + +#define DRV_NAME "r592" + + +#define message(format, ...) \ + printk(KERN_INFO DRV_NAME ": " format "\n", ## __VA_ARGS__) + +#define __dbg(level, format, ...) \ + do { \ + if (debug >= level) \ + printk(KERN_DEBUG DRV_NAME \ + ": " format "\n", ## __VA_ARGS__); \ + } while (0) + + +#define dbg(format, ...) __dbg(1, format, ## __VA_ARGS__) +#define dbg_verbose(format, ...) __dbg(2, format, ## __VA_ARGS__) +#define dbg_reg(format, ...) __dbg(3, format, ## __VA_ARGS__) + +#endif -- cgit v1.2.3 From c03e3126e4f9535f4983d727f036440255c43c82 Mon Sep 17 00:00:00 2001 From: Rakib Mullick <rakib.mullick@gmail.com> Date: Fri, 25 Mar 2011 01:57:01 -0700 Subject: codafs: fix build break when CONFIG_PROC_SYSCTL=n Commit 0bc825d240ab ("codafs: fix compile warning when CONFIG_SYSCTL=n") introduces build breakage, when CONFIG_PROC_SYSCTL=n and CONFIG_CODA_FS=y: fs/built-in.o: In function `init_coda': psdev.c:(.init.text+0xc02): undefined reference to `coda_sysctl_init' psdev.c:(.init.text+0xc7c): undefined reference to `coda_sysctl_clean' fs/built-in.o: In function `exit_coda': psdev.c:(.exit.text+0xa9): undefined reference to `coda_sysctl_clean' make: *** [.tmp_vmlinux1] Error 1 Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> Reported-by: Ingo Molnar <mingo@elte.hu> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- fs/coda/sysctl.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c index 06d27a41807f..af56ad56a89a 100644 --- a/fs/coda/sysctl.c +++ b/fs/coda/sysctl.c @@ -61,4 +61,13 @@ void coda_sysctl_clean(void) fs_table_header = NULL; } } + +#else +void coda_sysctl_init(void) +{ +} + +void coda_sysctl_clean(void) +{ +} #endif -- cgit v1.2.3 From be4d250ab41e13f8f945be6896695e870b38ba31 Mon Sep 17 00:00:00 2001 From: Xiaotian Feng <dfeng@redhat.com> Date: Fri, 25 Mar 2011 01:57:01 -0700 Subject: ipcns: fix use after free in free_ipc_ns() commit b515498 ("userns: add a user namespace owner of ipc ns") added a user namespace owner of ipc ns, but it also introduced a use after free in free_ipc_ns(). Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Acked-by: "Serge E. Hallyn" <serge.hallyn@canonical.com> Acked-by: David Howells <dhowells@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Daniel Lezcano <daniel.lezcano@free.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- ipc/namespace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ipc/namespace.c b/ipc/namespace.c index 3c3e5223e7e5..8054c8e5faf1 100644 --- a/ipc/namespace.c +++ b/ipc/namespace.c @@ -104,7 +104,6 @@ static void free_ipc_ns(struct ipc_namespace *ns) sem_exit_ns(ns); msg_exit_ns(ns); shm_exit_ns(ns); - kfree(ns); atomic_dec(&nr_ipc_ns); /* @@ -113,6 +112,7 @@ static void free_ipc_ns(struct ipc_namespace *ns) */ ipcns_notify(IPCNS_REMOVED); put_user_ns(ns->user_ns); + kfree(ns); } /* -- cgit v1.2.3 From 2740c60c4ab9a8c6169d7925014f57440361f698 Mon Sep 17 00:00:00 2001 From: Jean Delvare <khali@linux-fr.org> Date: Sat, 26 Mar 2011 10:45:01 +0100 Subject: hwmon: (f71882fg) Secure chip property definition arrays Using C99-style array initialization will ensure definitions won't drift if the chips enum gets new values added. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> --- drivers/hwmon/f71882fg.c | 54 ++++++++++++++++++++++++------------------------ 1 file changed, 27 insertions(+), 27 deletions(-) diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c index a4d430ee7e20..0f60b058ff9d 100644 --- a/drivers/hwmon/f71882fg.c +++ b/drivers/hwmon/f71882fg.c @@ -119,37 +119,37 @@ static const char *f71882fg_names[] = { "f8000", }; -static const char f71882fg_has_in[8][F71882FG_MAX_INS] = { - { 1, 1, 1, 1, 1, 1, 0, 1, 1 }, /* f71808e */ - { 1, 1, 1, 0, 0, 0, 0, 0, 0 }, /* f71858fg */ - { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71862fg */ - { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71869 */ - { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71882fg */ - { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71889fg */ - { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, /* f71889ed */ - { 1, 1, 1, 0, 0, 0, 0, 0, 0 }, /* f8000 */ +static const char f71882fg_has_in[][F71882FG_MAX_INS] = { + [f71808e] = { 1, 1, 1, 1, 1, 1, 0, 1, 1 }, + [f71858fg] = { 1, 1, 1, 0, 0, 0, 0, 0, 0 }, + [f71862fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, + [f71869] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, + [f71882fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, + [f71889fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, + [f71889ed] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, + [f8000] = { 1, 1, 1, 0, 0, 0, 0, 0, 0 }, }; -static const char f71882fg_has_in1_alarm[8] = { - 0, /* f71808e */ - 0, /* f71858fg */ - 0, /* f71862fg */ - 0, /* f71869 */ - 1, /* f71882fg */ - 1, /* f71889fg */ - 1, /* f71889ed */ - 0, /* f8000 */ +static const char f71882fg_has_in1_alarm[] = { + [f71808e] = 0, + [f71858fg] = 0, + [f71862fg] = 0, + [f71869] = 0, + [f71882fg] = 1, + [f71889fg] = 1, + [f71889ed] = 1, + [f8000] = 0, }; -static const char f71882fg_has_beep[8] = { - 0, /* f71808e */ - 0, /* f71858fg */ - 1, /* f71862fg */ - 1, /* f71869 */ - 1, /* f71882fg */ - 1, /* f71889fg */ - 1, /* f71889ed */ - 0, /* f8000 */ +static const char f71882fg_has_beep[] = { + [f71808e] = 0, + [f71858fg] = 0, + [f71862fg] = 1, + [f71869] = 1, + [f71882fg] = 1, + [f71889fg] = 1, + [f71889ed] = 1, + [f8000] = 0, }; static struct platform_device *f71882fg_pdev; -- cgit v1.2.3 From f27def07bfb296d5eb441cd5777d351c7afcb4a1 Mon Sep 17 00:00:00 2001 From: Jean Delvare <khali@linux-fr.org> Date: Sat, 26 Mar 2011 10:45:01 +0100 Subject: hwmon: (f71882fg) Per-chip fan/temperature input count tables Use tables to list the count of fan and temperature inputs for all supported chips, almost similar to (but more simple than) what is already done for voltage inputs. This avoids repeating the same tests in different functions, and will make it easier to add support for chips with a different count of fan or temperature inputs. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> --- drivers/hwmon/f71882fg.c | 36 ++++++++++++++++++++++++++++++------ 1 file changed, 30 insertions(+), 6 deletions(-) diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c index 0f60b058ff9d..222c7f4a1e3f 100644 --- a/drivers/hwmon/f71882fg.c +++ b/drivers/hwmon/f71882fg.c @@ -152,6 +152,28 @@ static const char f71882fg_has_beep[] = { [f8000] = 0, }; +static const char f71882fg_nr_fans[] = { + [f71808e] = 3, + [f71858fg] = 3, + [f71862fg] = 3, + [f71869] = 3, + [f71882fg] = 4, + [f71889fg] = 3, + [f71889ed] = 3, + [f8000] = 3, +}; + +static const char f71882fg_nr_temps[] = { + [f71808e] = 2, + [f71858fg] = 3, + [f71862fg] = 3, + [f71869] = 3, + [f71882fg] = 3, + [f71889fg] = 3, + [f71889ed] = 3, + [f8000] = 3, +}; + static struct platform_device *f71882fg_pdev; /* Super-I/O Function prototypes */ @@ -1071,9 +1093,9 @@ static u16 f71882fg_read_temp(struct f71882fg_data *data, int nr) static struct f71882fg_data *f71882fg_update_device(struct device *dev) { struct f71882fg_data *data = dev_get_drvdata(dev); + int nr_fans = f71882fg_nr_fans[data->type]; + int nr_temps = f71882fg_nr_temps[data->type]; int nr, reg, point; - int nr_fans = (data->type == f71882fg) ? 4 : 3; - int nr_temps = (data->type == f71808e) ? 2 : 3; mutex_lock(&data->update_lock); @@ -2042,8 +2064,9 @@ static int __devinit f71882fg_probe(struct platform_device *pdev) { struct f71882fg_data *data; struct f71882fg_sio_data *sio_data = pdev->dev.platform_data; - int err, i, nr_fans = (sio_data->type == f71882fg) ? 4 : 3; - int nr_temps = (sio_data->type == f71808e) ? 2 : 3; + int nr_fans = f71882fg_nr_fans[sio_data->type]; + int nr_temps = f71882fg_nr_temps[sio_data->type]; + int err, i; u8 start_reg, reg; data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL); @@ -2276,8 +2299,9 @@ exit_free: static int f71882fg_remove(struct platform_device *pdev) { struct f71882fg_data *data = platform_get_drvdata(pdev); - int i, nr_fans = (data->type == f71882fg) ? 4 : 3; - int nr_temps = (data->type == f71808e) ? 2 : 3; + int nr_fans = f71882fg_nr_fans[data->type]; + int nr_temps = f71882fg_nr_temps[data->type]; + int i; u8 start_reg = f71882fg_read8(data, F71882FG_REG_START); if (data->hwmon_dev) -- cgit v1.2.3 From 5d7f77bf66bfa986754b3e12073bef0ab8cd61bd Mon Sep 17 00:00:00 2001 From: Jean Delvare <khali@linux-fr.org> Date: Sat, 26 Mar 2011 10:45:02 +0100 Subject: hwmon: (f71882fg) Document all supported devices The list of supported devices was not always well documented in all places. Clarify and list all devices in documentation, Kconfig and the driver itself. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> --- Documentation/hwmon/f71882fg | 11 +++++++++++ drivers/hwmon/Kconfig | 16 +++++++++++++--- drivers/hwmon/f71882fg.c | 2 +- 3 files changed, 25 insertions(+), 4 deletions(-) diff --git a/Documentation/hwmon/f71882fg b/Documentation/hwmon/f71882fg index 4d0bc70f1852..ed2a7aa41de8 100644 --- a/Documentation/hwmon/f71882fg +++ b/Documentation/hwmon/f71882fg @@ -2,6 +2,10 @@ Kernel driver f71882fg ====================== Supported chips: + * Fintek F71808E + Prefix: 'f71808e' + Addresses scanned: none, address read from Super I/O config space + Datasheet: Not public * Fintek F71858FG Prefix: 'f71858fg' Addresses scanned: none, address read from Super I/O config space @@ -30,6 +34,13 @@ Supported chips: Prefix: 'f8000' Addresses scanned: none, address read from Super I/O config space Datasheet: Not public + * Fintek F81801U + Prefix: 'f71889fg' + Addresses scanned: none, address read from Super I/O config space + Datasheet: Not public + Note: This is the 64-pin variant of the F71889FG, they have the + same device ID and are fully compatible as far as hardware + monitoring is concerned. Author: Hans de Goede <hdegoede@redhat.com> diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 81131eda5544..51255b366d09 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -315,11 +315,21 @@ config SENSORS_F71805F will be called f71805f. config SENSORS_F71882FG - tristate "Fintek F71858FG, F71862FG, F71882FG, F71889FG and F8000" + tristate "Fintek F71882FG and compatibles" help If you say yes here you get support for hardware monitoring - features of the Fintek F71858FG, F71862FG/71863FG, F71882FG/F71883FG, - F71889FG and F8000 Super-I/O chips. + features of many Fintek Super-I/O (LPC) chips. The currently + supported chips are: + F71808E + F71858FG + F71862FG + F71863FG + F71869F/E + F71882FG + F71883FG + F71889FG/ED + F8000 + F81801U This driver can also be built as a module. If so, the module will be called f71882fg. diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c index 222c7f4a1e3f..29879046fe53 100644 --- a/drivers/hwmon/f71882fg.c +++ b/drivers/hwmon/f71882fg.c @@ -114,7 +114,7 @@ static const char *f71882fg_names[] = { "f71862fg", "f71869", /* Both f71869f and f71869e, reg. compatible and same id */ "f71882fg", - "f71889fg", + "f71889fg", /* f81801u too, same id */ "f71889ed", "f8000", }; -- cgit v1.2.3 From 383586b12d89ba4297c49898645658cdb324b918 Mon Sep 17 00:00:00 2001 From: Jean Delvare <khali@linux-fr.org> Date: Sat, 26 Mar 2011 10:45:02 +0100 Subject: hwmon: (f71882fg) Add support for the F81865F Add support for the Fintek F81865F. It's essentially compatible with the F71882FG, but has fewer inputs: 7 voltage, 2 temperature and 2 fan inputs only. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> --- Documentation/hwmon/f71882fg | 4 ++++ drivers/hwmon/Kconfig | 1 + drivers/hwmon/f71882fg.c | 22 ++++++++++++++-------- 3 files changed, 19 insertions(+), 8 deletions(-) diff --git a/Documentation/hwmon/f71882fg b/Documentation/hwmon/f71882fg index ed2a7aa41de8..b802a224f728 100644 --- a/Documentation/hwmon/f71882fg +++ b/Documentation/hwmon/f71882fg @@ -41,6 +41,10 @@ Supported chips: Note: This is the 64-pin variant of the F71889FG, they have the same device ID and are fully compatible as far as hardware monitoring is concerned. + * Fintek F81865F + Prefix: 'f81865f' + Addresses scanned: none, address read from Super I/O config space + Datasheet: Available from the Fintek website Author: Hans de Goede <hdegoede@redhat.com> diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 51255b366d09..df9944bd47c4 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -330,6 +330,7 @@ config SENSORS_F71882FG F71889FG/ED F8000 F81801U + F81865F This driver can also be built as a module. If so, the module will be called f71882fg. diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c index 29879046fe53..aa8cf5d5c22e 100644 --- a/drivers/hwmon/f71882fg.c +++ b/drivers/hwmon/f71882fg.c @@ -55,6 +55,7 @@ #define SIO_F71889_ID 0x0723 /* Chipset ID */ #define SIO_F71889E_ID 0x0909 /* Chipset ID */ #define SIO_F8000_ID 0x0581 /* Chipset ID */ +#define SIO_F81865_ID 0x0704 /* Chipset ID */ #define REGION_LENGTH 8 #define ADDR_REG_OFFSET 5 @@ -106,7 +107,7 @@ module_param(force_id, ushort, 0); MODULE_PARM_DESC(force_id, "Override the detected device ID"); enum chips { f71808e, f71858fg, f71862fg, f71869, f71882fg, f71889fg, - f71889ed, f8000 }; + f71889ed, f8000, f81865f }; static const char *f71882fg_names[] = { "f71808e", @@ -117,6 +118,7 @@ static const char *f71882fg_names[] = { "f71889fg", /* f81801u too, same id */ "f71889ed", "f8000", + "f81865f", }; static const char f71882fg_has_in[][F71882FG_MAX_INS] = { @@ -128,6 +130,7 @@ static const char f71882fg_has_in[][F71882FG_MAX_INS] = { [f71889fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, [f71889ed] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, [f8000] = { 1, 1, 1, 0, 0, 0, 0, 0, 0 }, + [f81865f] = { 1, 1, 1, 1, 1, 1, 1, 0, 0 }, }; static const char f71882fg_has_in1_alarm[] = { @@ -139,6 +142,7 @@ static const char f71882fg_has_in1_alarm[] = { [f71889fg] = 1, [f71889ed] = 1, [f8000] = 0, + [f81865f] = 1, }; static const char f71882fg_has_beep[] = { @@ -150,6 +154,7 @@ static const char f71882fg_has_beep[] = { [f71889fg] = 1, [f71889ed] = 1, [f8000] = 0, + [f81865f] = 1, }; static const char f71882fg_nr_fans[] = { @@ -161,6 +166,7 @@ static const char f71882fg_nr_fans[] = { [f71889fg] = 3, [f71889ed] = 3, [f8000] = 3, + [f81865f] = 2, }; static const char f71882fg_nr_temps[] = { @@ -172,6 +178,7 @@ static const char f71882fg_nr_temps[] = { [f71889fg] = 3, [f71889ed] = 3, [f8000] = 3, + [f81865f] = 2, }; static struct platform_device *f71882fg_pdev; @@ -2186,16 +2193,12 @@ static int __devinit f71882fg_probe(struct platform_device *pdev) case f71862fg: err = (data->pwm_enable & 0x15) != 0x15; break; - case f71808e: - case f71869: - case f71882fg: - case f71889fg: - case f71889ed: - err = 0; - break; case f8000: err = data->pwm_enable & 0x20; break; + default: + err = 0; + break; } if (err) { dev_err(&pdev->dev, @@ -2433,6 +2436,9 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address, case SIO_F8000_ID: sio_data->type = f8000; break; + case SIO_F81865_ID: + sio_data->type = f81865f; + break; default: pr_info("Unsupported Fintek device: %04x\n", (unsigned int)devid); -- cgit v1.2.3 From a66c10887ad2a99e172111cc94087ba4bed8fa92 Mon Sep 17 00:00:00 2001 From: Hans de Goede <hdegoede@redhat.com> Date: Sat, 26 Mar 2011 10:45:02 +0100 Subject: hwmon: (f71882fg) Add support for the F71889A Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> --- Documentation/hwmon/f71882fg | 4 ++++ drivers/hwmon/Kconfig | 2 +- drivers/hwmon/f71882fg.c | 14 +++++++++++++- 3 files changed, 18 insertions(+), 2 deletions(-) diff --git a/Documentation/hwmon/f71882fg b/Documentation/hwmon/f71882fg index b802a224f728..df02245d1419 100644 --- a/Documentation/hwmon/f71882fg +++ b/Documentation/hwmon/f71882fg @@ -30,6 +30,10 @@ Supported chips: Prefix: 'f71889ed' Addresses scanned: none, address read from Super I/O config space Datasheet: Should become available on the Fintek website soon + * Fintek F71889A + Prefix: 'f71889a' + Addresses scanned: none, address read from Super I/O config space + Datasheet: Should become available on the Fintek website soon * Fintek F8000 Prefix: 'f8000' Addresses scanned: none, address read from Super I/O config space diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index df9944bd47c4..060ef6327876 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -327,7 +327,7 @@ config SENSORS_F71882FG F71869F/E F71882FG F71883FG - F71889FG/ED + F71889FG/ED/A F8000 F81801U F81865F diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c index aa8cf5d5c22e..ca07a32447c2 100644 --- a/drivers/hwmon/f71882fg.c +++ b/drivers/hwmon/f71882fg.c @@ -54,6 +54,7 @@ #define SIO_F71882_ID 0x0541 /* Chipset ID */ #define SIO_F71889_ID 0x0723 /* Chipset ID */ #define SIO_F71889E_ID 0x0909 /* Chipset ID */ +#define SIO_F71889A_ID 0x1005 /* Chipset ID */ #define SIO_F8000_ID 0x0581 /* Chipset ID */ #define SIO_F81865_ID 0x0704 /* Chipset ID */ @@ -107,7 +108,7 @@ module_param(force_id, ushort, 0); MODULE_PARM_DESC(force_id, "Override the detected device ID"); enum chips { f71808e, f71858fg, f71862fg, f71869, f71882fg, f71889fg, - f71889ed, f8000, f81865f }; + f71889ed, f71889a, f8000, f81865f }; static const char *f71882fg_names[] = { "f71808e", @@ -117,6 +118,7 @@ static const char *f71882fg_names[] = { "f71882fg", "f71889fg", /* f81801u too, same id */ "f71889ed", + "f71889a", "f8000", "f81865f", }; @@ -129,6 +131,7 @@ static const char f71882fg_has_in[][F71882FG_MAX_INS] = { [f71882fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, [f71889fg] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, [f71889ed] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, + [f71889a] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 }, [f8000] = { 1, 1, 1, 0, 0, 0, 0, 0, 0 }, [f81865f] = { 1, 1, 1, 1, 1, 1, 1, 0, 0 }, }; @@ -141,6 +144,7 @@ static const char f71882fg_has_in1_alarm[] = { [f71882fg] = 1, [f71889fg] = 1, [f71889ed] = 1, + [f71889a] = 1, [f8000] = 0, [f81865f] = 1, }; @@ -153,6 +157,7 @@ static const char f71882fg_has_beep[] = { [f71882fg] = 1, [f71889fg] = 1, [f71889ed] = 1, + [f71889a] = 1, [f8000] = 0, [f81865f] = 1, }; @@ -165,6 +170,7 @@ static const char f71882fg_nr_fans[] = { [f71882fg] = 4, [f71889fg] = 3, [f71889ed] = 3, + [f71889a] = 3, [f8000] = 3, [f81865f] = 2, }; @@ -177,6 +183,7 @@ static const char f71882fg_nr_temps[] = { [f71882fg] = 3, [f71889fg] = 3, [f71889ed] = 3, + [f71889a] = 3, [f8000] = 3, [f81865f] = 2, }; @@ -2168,6 +2175,7 @@ static int __devinit f71882fg_probe(struct platform_device *pdev) /* Fall through to select correct fan/pwm reg bank! */ case f71889fg: case f71889ed: + case f71889a: reg = f71882fg_read8(data, F71882FG_REG_FAN_FAULT_T); if (reg & F71882FG_FAN_NEG_TEMP_EN) data->auto_point_temp_signed = 1; @@ -2225,6 +2233,7 @@ static int __devinit f71882fg_probe(struct platform_device *pdev) case f71869: case f71889fg: case f71889ed: + case f71889a: for (i = 0; i < nr_fans; i++) { data->pwm_auto_point_mapping[i] = f71882fg_read8(data, @@ -2433,6 +2442,9 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address, case SIO_F71889E_ID: sio_data->type = f71889ed; break; + case SIO_F71889A_ID: + sio_data->type = f71889a; + break; case SIO_F8000_ID: sio_data->type = f8000; break; -- cgit v1.2.3 From 23c2f041efa891e6ec0706dc9ad4f776a9aa8c14 Mon Sep 17 00:00:00 2001 From: Mark Brown <broonie@opensource.wolfsonmicro.com> Date: Thu, 24 Feb 2011 17:39:09 +0000 Subject: regulator: If we fail when setting up a supply say which supply Makes it a bit easier to identify if it's a problem with the supplies, the usual error would be omitting the supply name entirely. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 9fa20957847d..a2dc6223e8d2 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2565,8 +2565,11 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc, init_data->consumer_supplies[i].dev, init_data->consumer_supplies[i].dev_name, init_data->consumer_supplies[i].supply); - if (ret < 0) + if (ret < 0) { + dev_err(dev, "Failed to set supply %s\n", + init_data->consumer_supplies[i].supply); goto unset_supplies; + } } list_add(&rdev->list, ®ulator_list); -- cgit v1.2.3 From dfda9c27ba15330f37453c389d775ecf9e981d05 Mon Sep 17 00:00:00 2001 From: Mark Brown <broonie@opensource.wolfsonmicro.com> Date: Tue, 1 Mar 2011 16:50:43 +0000 Subject: regulator: Convert WM831x regulators to genirq Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/wm831x-dcdc.c | 26 +++++++++++--------------- drivers/regulator/wm831x-isink.c | 8 +++----- drivers/regulator/wm831x-ldo.c | 17 +++++++---------- 3 files changed, 21 insertions(+), 30 deletions(-) diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 06df898842c0..857d741539da 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -565,9 +565,8 @@ static __devinit int wm831x_buckv_probe(struct platform_device *pdev) } irq = platform_get_irq_byname(pdev, "UV"); - ret = wm831x_request_irq(wm831x, irq, wm831x_dcdc_uv_irq, - IRQF_TRIGGER_RISING, dcdc->name, - dcdc); + ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq, + IRQF_TRIGGER_RISING, dcdc->name, dcdc); if (ret != 0) { dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n", irq, ret); @@ -575,9 +574,8 @@ static __devinit int wm831x_buckv_probe(struct platform_device *pdev) } irq = platform_get_irq_byname(pdev, "HC"); - ret = wm831x_request_irq(wm831x, irq, wm831x_dcdc_oc_irq, - IRQF_TRIGGER_RISING, dcdc->name, - dcdc); + ret = request_threaded_irq(irq, NULL, wm831x_dcdc_oc_irq, + IRQF_TRIGGER_RISING, dcdc->name, dcdc); if (ret != 0) { dev_err(&pdev->dev, "Failed to request HC IRQ %d: %d\n", irq, ret); @@ -589,7 +587,7 @@ static __devinit int wm831x_buckv_probe(struct platform_device *pdev) return 0; err_uv: - wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc); + free_irq(platform_get_irq_byname(pdev, "UV"), dcdc); err_regulator: regulator_unregister(dcdc->regulator); err: @@ -756,9 +754,8 @@ static __devinit int wm831x_buckp_probe(struct platform_device *pdev) } irq = platform_get_irq_byname(pdev, "UV"); - ret = wm831x_request_irq(wm831x, irq, wm831x_dcdc_uv_irq, - IRQF_TRIGGER_RISING, dcdc->name, - dcdc); + ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq, + IRQF_TRIGGER_RISING, dcdc->name, dcdc); if (ret != 0) { dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n", irq, ret); @@ -885,9 +882,9 @@ static __devinit int wm831x_boostp_probe(struct platform_device *pdev) } irq = platform_get_irq_byname(pdev, "UV"); - ret = wm831x_request_irq(wm831x, irq, wm831x_dcdc_uv_irq, - IRQF_TRIGGER_RISING, dcdc->name, - dcdc); + ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq, + IRQF_TRIGGER_RISING, dcdc->name, + dcdc); if (ret != 0) { dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n", irq, ret); @@ -908,11 +905,10 @@ err: static __devexit int wm831x_boostp_remove(struct platform_device *pdev) { struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev); - struct wm831x *wm831x = dcdc->wm831x; platform_set_drvdata(pdev, NULL); - wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc); + free_irq(platform_get_irq_byname(pdev, "UV"), dcdc); regulator_unregister(dcdc->regulator); kfree(dcdc); diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c index 6c446cd6ad54..01f27c7f4236 100644 --- a/drivers/regulator/wm831x-isink.c +++ b/drivers/regulator/wm831x-isink.c @@ -198,9 +198,8 @@ static __devinit int wm831x_isink_probe(struct platform_device *pdev) } irq = platform_get_irq(pdev, 0); - ret = wm831x_request_irq(wm831x, irq, wm831x_isink_irq, - IRQF_TRIGGER_RISING, isink->name, - isink); + ret = request_threaded_irq(irq, NULL, wm831x_isink_irq, + IRQF_TRIGGER_RISING, isink->name, isink); if (ret != 0) { dev_err(&pdev->dev, "Failed to request ISINK IRQ %d: %d\n", irq, ret); @@ -221,11 +220,10 @@ err: static __devexit int wm831x_isink_remove(struct platform_device *pdev) { struct wm831x_isink *isink = platform_get_drvdata(pdev); - struct wm831x *wm831x = isink->wm831x; platform_set_drvdata(pdev, NULL); - wm831x_free_irq(wm831x, platform_get_irq(pdev, 0), isink); + free_irq(platform_get_irq(pdev, 0), isink); regulator_unregister(isink->regulator); kfree(isink); diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c index c94fc5b7cd5b..2220cf8defb1 100644 --- a/drivers/regulator/wm831x-ldo.c +++ b/drivers/regulator/wm831x-ldo.c @@ -354,9 +354,9 @@ static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev) } irq = platform_get_irq_byname(pdev, "UV"); - ret = wm831x_request_irq(wm831x, irq, wm831x_ldo_uv_irq, - IRQF_TRIGGER_RISING, ldo->name, - ldo); + ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq, + IRQF_TRIGGER_RISING, ldo->name, + ldo); if (ret != 0) { dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n", irq, ret); @@ -377,11 +377,10 @@ err: static __devexit int wm831x_gp_ldo_remove(struct platform_device *pdev) { struct wm831x_ldo *ldo = platform_get_drvdata(pdev); - struct wm831x *wm831x = ldo->wm831x; platform_set_drvdata(pdev, NULL); - wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), ldo); + free_irq(platform_get_irq_byname(pdev, "UV"), ldo); regulator_unregister(ldo->regulator); kfree(ldo); @@ -619,9 +618,8 @@ static __devinit int wm831x_aldo_probe(struct platform_device *pdev) } irq = platform_get_irq_byname(pdev, "UV"); - ret = wm831x_request_irq(wm831x, irq, wm831x_ldo_uv_irq, - IRQF_TRIGGER_RISING, ldo->name, - ldo); + ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq, + IRQF_TRIGGER_RISING, ldo->name, ldo); if (ret != 0) { dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n", irq, ret); @@ -642,9 +640,8 @@ err: static __devexit int wm831x_aldo_remove(struct platform_device *pdev) { struct wm831x_ldo *ldo = platform_get_drvdata(pdev); - struct wm831x *wm831x = ldo->wm831x; - wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), ldo); + free_irq(platform_get_irq_byname(pdev, "UV"), ldo); regulator_unregister(ldo->regulator); kfree(ldo); -- cgit v1.2.3 From fb7c18cac8608983168a7f4f55193cea190c83c8 Mon Sep 17 00:00:00 2001 From: Igor Grinberg <grinberg@compulab.co.il> Date: Tue, 1 Mar 2011 11:54:44 +0200 Subject: regulator: fix typo in Kconfig Fix typo: s/TPS695x0/TPS659x0/ Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index de75f67f4cc3..b9f29e0d4295 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -126,7 +126,7 @@ config REGULATOR_MAX8998 and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages. config REGULATOR_TWL4030 - bool "TI TWL4030/TWL5030/TWL6030/TPS695x0 PMIC" + bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC" depends on TWL4030_CORE help This driver supports the voltage regulators provided by -- cgit v1.2.3 From 7a32b589a9c856493bccb02db55047edc04eee7b Mon Sep 17 00:00:00 2001 From: MyungJoo Ham <myungjoo.ham@samsung.com> Date: Fri, 11 Mar 2011 10:13:59 +0900 Subject: Regulator: add suspend-finish API for regulator core. The regulator core had suspend-prepare that turns off the regulators when entering a system-wide suspend. However, it did not have suspend-finish that pairs with suspend-prepare and the regulator core has assumed that the regulator devices and their drivers support autonomous recover at resume. This patch adds regulator_suspend_finish that pairs with the previously-existed regulator_suspend_prepare. The function regulator_suspend_finish turns on the regulators that have always_on set or positive use_count so that we can reset the regulator states appropriately at resume. In regulator_suspend_finish, if has_full_constraints, it disables unnecessary regulators. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> -- Updates v3 comments corrected (Thanks to Igor) v2 disable unnecessary regulators (Thanks to Mark) Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/core.c | 41 +++++++++++++++++++++++++++++++++++++++ include/linux/regulator/machine.h | 1 + 2 files changed, 42 insertions(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index a2dc6223e8d2..e611f6797e6a 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2655,6 +2655,47 @@ out: } EXPORT_SYMBOL_GPL(regulator_suspend_prepare); +/** + * regulator_suspend_finish - resume regulators from system wide suspend + * + * Turn on regulators that might be turned off by regulator_suspend_prepare + * and that should be turned on according to the regulators properties. + */ +int regulator_suspend_finish(void) +{ + struct regulator_dev *rdev; + int ret = 0, error; + + mutex_lock(®ulator_list_mutex); + list_for_each_entry(rdev, ®ulator_list, list) { + struct regulator_ops *ops = rdev->desc->ops; + + mutex_lock(&rdev->mutex); + if ((rdev->use_count > 0 || rdev->constraints->always_on) && + ops->enable) { + error = ops->enable(rdev); + if (error) + ret = error; + } else { + if (!has_full_constraints) + goto unlock; + if (!ops->disable) + goto unlock; + if (ops->is_enabled && !ops->is_enabled(rdev)) + goto unlock; + + error = ops->disable(rdev); + if (error) + ret = error; + } +unlock: + mutex_unlock(&rdev->mutex); + } + mutex_unlock(®ulator_list_mutex); + return ret; +} +EXPORT_SYMBOL_GPL(regulator_suspend_finish); + /** * regulator_has_full_constraints - the system has fully specified constraints * diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index 761c745b9c24..c4c4fc45f856 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -186,6 +186,7 @@ struct regulator_init_data { }; int regulator_suspend_prepare(suspend_state_t state); +int regulator_suspend_finish(void); #ifdef CONFIG_REGULATOR void regulator_has_full_constraints(void); -- cgit v1.2.3 From 19c98825941cb10b59c9953665fc4495bc82c0ae Mon Sep 17 00:00:00 2001 From: Linus Walleij <linus.walleij@linaro.org> Date: Fri, 11 Mar 2011 16:26:18 +0100 Subject: regulator: switch the ab3100 to use enable_time() Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> This switches the ab3100 core to use the enable_time() infrastructure from the regulator core. Cc: Mattias Wallin <mattias.wallin@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/ab3100.c | 51 +++++++++++++++++++++++++--------------------- 1 file changed, 28 insertions(+), 23 deletions(-) diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c index 2dec589a8908..b1d77946e9c6 100644 --- a/drivers/regulator/ab3100.c +++ b/drivers/regulator/ab3100.c @@ -206,29 +206,6 @@ static int ab3100_enable_regulator(struct regulator_dev *reg) return err; } - /* Per-regulator power on delay from spec */ - switch (abreg->regreg) { - case AB3100_LDO_A: /* Fallthrough */ - case AB3100_LDO_C: /* Fallthrough */ - case AB3100_LDO_D: /* Fallthrough */ - case AB3100_LDO_E: /* Fallthrough */ - case AB3100_LDO_H: /* Fallthrough */ - case AB3100_LDO_K: - udelay(200); - break; - case AB3100_LDO_F: - udelay(600); - break; - case AB3100_LDO_G: - udelay(400); - break; - case AB3100_BUCK: - mdelay(1); - break; - default: - break; - } - return 0; } @@ -450,11 +427,37 @@ static int ab3100_get_voltage_regulator_external(struct regulator_dev *reg) return abreg->plfdata->external_voltage; } +static int ab3100_enable_time_regulator(struct regulator_dev *reg) +{ + struct ab3100_regulator *abreg = reg->reg_data; + + /* Per-regulator power on delay from spec */ + switch (abreg->regreg) { + case AB3100_LDO_A: /* Fallthrough */ + case AB3100_LDO_C: /* Fallthrough */ + case AB3100_LDO_D: /* Fallthrough */ + case AB3100_LDO_E: /* Fallthrough */ + case AB3100_LDO_H: /* Fallthrough */ + case AB3100_LDO_K: + return 200; + case AB3100_LDO_F: + return 600; + case AB3100_LDO_G: + return 400; + case AB3100_BUCK: + return 1000; + default: + break; + } + return 0; +} + static struct regulator_ops regulator_ops_fixed = { .enable = ab3100_enable_regulator, .disable = ab3100_disable_regulator, .is_enabled = ab3100_is_enabled_regulator, .get_voltage = ab3100_get_voltage_regulator, + .enable_time = ab3100_enable_time_regulator, }; static struct regulator_ops regulator_ops_variable = { @@ -464,6 +467,7 @@ static struct regulator_ops regulator_ops_variable = { .get_voltage = ab3100_get_voltage_regulator, .set_voltage = ab3100_set_voltage_regulator, .list_voltage = ab3100_list_voltage_regulator, + .enable_time = ab3100_enable_time_regulator, }; static struct regulator_ops regulator_ops_variable_sleepable = { @@ -474,6 +478,7 @@ static struct regulator_ops regulator_ops_variable_sleepable = { .set_voltage = ab3100_set_voltage_regulator, .set_suspend_voltage = ab3100_set_suspend_voltage_regulator, .list_voltage = ab3100_list_voltage_regulator, + .enable_time = ab3100_enable_time_regulator, }; /* -- cgit v1.2.3 From ea05ef31f2aa98b25d14222300dc9c1d1eb59e41 Mon Sep 17 00:00:00 2001 From: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Date: Thu, 10 Mar 2011 14:43:31 +0100 Subject: regulator: add support for USB voltage regulator Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/ab8500.c | 17 ++++++++++++++++- include/linux/regulator/ab8500.h | 1 + 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index d9a052c53aec..5a77630095d9 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -9,7 +9,7 @@ * AB8500 peripheral regulators * * AB8500 supports the following regulators: - * VAUX1/2/3, VINTCORE, VTVOUT, VAUDIO, VAMIC1/2, VDMIC, VANA + * VAUX1/2/3, VINTCORE, VTVOUT, VUSB, VAUDIO, VAMIC1/2, VDMIC, VANA */ #include <linux/init.h> #include <linux/kernel.h> @@ -432,6 +432,21 @@ static struct ab8500_regulator_info .update_mask = 0x82, .update_val_enable = 0x02, }, + [AB8500_LDO_USB] = { + .desc = { + .name = "LDO-USB", + .ops = &ab8500_regulator_fixed_ops, + .type = REGULATOR_VOLTAGE, + .id = AB8500_LDO_USB, + .owner = THIS_MODULE, + .n_voltages = 1, + }, + .fixed_uV = 3300000, + .update_bank = 0x03, + .update_reg = 0x82, + .update_mask = 0x03, + .update_val_enable = 0x01, + }, [AB8500_LDO_AUDIO] = { .desc = { .name = "LDO-AUDIO", diff --git a/include/linux/regulator/ab8500.h b/include/linux/regulator/ab8500.h index 6a210f1511fc..d4eacdef2017 100644 --- a/include/linux/regulator/ab8500.h +++ b/include/linux/regulator/ab8500.h @@ -17,6 +17,7 @@ enum ab8500_regulator_id { AB8500_LDO_AUX3, AB8500_LDO_INTCORE, AB8500_LDO_TVOUT, + AB8500_LDO_USB, AB8500_LDO_AUDIO, AB8500_LDO_ANAMIC1, AB8500_LDO_ANAMIC2, -- cgit v1.2.3 From 79568b941277b5986a8a7f0fb8578b2ccfc3e87e Mon Sep 17 00:00:00 2001 From: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Date: Fri, 11 Mar 2011 11:54:46 +0100 Subject: regulator: initialization for ab8500 regulators The regulators on the AB8500 have a lot of custom hardware control settings pertaining to 8 external signals, settings which are board-specific and need be provided from the platform at startup. Initialization added for regulators Vana, VextSupply1, VextSupply2, VextSupply3, Vaux1, Vaux2, Vaux3, VTVout, Vintcore12, Vaudio, Vdmic, Vamic1, Vamic2, VrefDDR. Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Reviewed-by: Rickard Andersson <rickard.andersson@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- arch/arm/mach-ux500/board-mop500-regulators.h | 2 + arch/arm/mach-ux500/board-mop500.c | 1 + drivers/regulator/ab8500.c | 223 +++++++++++++++++++++++++- include/linux/mfd/ab8500.h | 6 + include/linux/regulator/ab8500.h | 50 +++++- 5 files changed, 279 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-ux500/board-mop500-regulators.h b/arch/arm/mach-ux500/board-mop500-regulators.h index 2675fae52537..f979b892e4fa 100644 --- a/arch/arm/mach-ux500/board-mop500-regulators.h +++ b/arch/arm/mach-ux500/board-mop500-regulators.h @@ -14,6 +14,8 @@ #include <linux/regulator/machine.h> #include <linux/regulator/ab8500.h> +extern struct ab8500_regulator_reg_init +ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS]; extern struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS]; #endif diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index 8790d984cac8..d0076453d7ff 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -20,6 +20,7 @@ #include <linux/amba/serial.h> #include <linux/spi/spi.h> #include <linux/mfd/ab8500.h> +#include <linux/regulator/ab8500.h> #include <linux/mfd/tc3589x.h> #include <linux/leds-lp5521.h> #include <linux/input.h> diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index 5a77630095d9..d157146c8655 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -526,6 +526,186 @@ static struct ab8500_regulator_info }; +struct ab8500_reg_init { + u8 bank; + u8 addr; + u8 mask; +}; + +#define REG_INIT(_id, _bank, _addr, _mask) \ + [_id] = { \ + .bank = _bank, \ + .addr = _addr, \ + .mask = _mask, \ + } + +static struct ab8500_reg_init ab8500_reg_init[] = { + /* + * 0x30, VanaRequestCtrl + * 0x0C, VpllRequestCtrl + * 0xc0, VextSupply1RequestCtrl + */ + REG_INIT(AB8500_REGUREQUESTCTRL2, 0x03, 0x04, 0xfc), + /* + * 0x03, VextSupply2RequestCtrl + * 0x0c, VextSupply3RequestCtrl + * 0x30, Vaux1RequestCtrl + * 0xc0, Vaux2RequestCtrl + */ + REG_INIT(AB8500_REGUREQUESTCTRL3, 0x03, 0x05, 0xff), + /* + * 0x03, Vaux3RequestCtrl + * 0x04, SwHPReq + */ + REG_INIT(AB8500_REGUREQUESTCTRL4, 0x03, 0x06, 0x07), + /* + * 0x08, VanaSysClkReq1HPValid + * 0x20, Vaux1SysClkReq1HPValid + * 0x40, Vaux2SysClkReq1HPValid + * 0x80, Vaux3SysClkReq1HPValid + */ + REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID1, 0x03, 0x07, 0xe8), + /* + * 0x10, VextSupply1SysClkReq1HPValid + * 0x20, VextSupply2SysClkReq1HPValid + * 0x40, VextSupply3SysClkReq1HPValid + */ + REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID2, 0x03, 0x08, 0x70), + /* + * 0x08, VanaHwHPReq1Valid + * 0x20, Vaux1HwHPReq1Valid + * 0x40, Vaux2HwHPReq1Valid + * 0x80, Vaux3HwHPReq1Valid + */ + REG_INIT(AB8500_REGUHWHPREQ1VALID1, 0x03, 0x09, 0xe8), + /* + * 0x01, VextSupply1HwHPReq1Valid + * 0x02, VextSupply2HwHPReq1Valid + * 0x04, VextSupply3HwHPReq1Valid + */ + REG_INIT(AB8500_REGUHWHPREQ1VALID2, 0x03, 0x0a, 0x07), + /* + * 0x08, VanaHwHPReq2Valid + * 0x20, Vaux1HwHPReq2Valid + * 0x40, Vaux2HwHPReq2Valid + * 0x80, Vaux3HwHPReq2Valid + */ + REG_INIT(AB8500_REGUHWHPREQ2VALID1, 0x03, 0x0b, 0xe8), + /* + * 0x01, VextSupply1HwHPReq2Valid + * 0x02, VextSupply2HwHPReq2Valid + * 0x04, VextSupply3HwHPReq2Valid + */ + REG_INIT(AB8500_REGUHWHPREQ2VALID2, 0x03, 0x0c, 0x07), + /* + * 0x20, VanaSwHPReqValid + * 0x80, Vaux1SwHPReqValid + */ + REG_INIT(AB8500_REGUSWHPREQVALID1, 0x03, 0x0d, 0xa0), + /* + * 0x01, Vaux2SwHPReqValid + * 0x02, Vaux3SwHPReqValid + * 0x04, VextSupply1SwHPReqValid + * 0x08, VextSupply2SwHPReqValid + * 0x10, VextSupply3SwHPReqValid + */ + REG_INIT(AB8500_REGUSWHPREQVALID2, 0x03, 0x0e, 0x1f), + /* + * 0x02, SysClkReq2Valid1 + * ... + * 0x80, SysClkReq8Valid1 + */ + REG_INIT(AB8500_REGUSYSCLKREQVALID1, 0x03, 0x0f, 0xfe), + /* + * 0x02, SysClkReq2Valid2 + * ... + * 0x80, SysClkReq8Valid2 + */ + REG_INIT(AB8500_REGUSYSCLKREQVALID2, 0x03, 0x10, 0xfe), + /* + * 0x02, VTVoutEna + * 0x04, Vintcore12Ena + * 0x38, Vintcore12Sel + * 0x40, Vintcore12LP + * 0x80, VTVoutLP + */ + REG_INIT(AB8500_REGUMISC1, 0x03, 0x80, 0xfe), + /* + * 0x02, VaudioEna + * 0x04, VdmicEna + * 0x08, Vamic1Ena + * 0x10, Vamic2Ena + */ + REG_INIT(AB8500_VAUDIOSUPPLY, 0x03, 0x83, 0x1e), + /* + * 0x01, Vamic1_dzout + * 0x02, Vamic2_dzout + */ + REG_INIT(AB8500_REGUCTRL1VAMIC, 0x03, 0x84, 0x03), + /* + * 0x0c, VanaRegu + * 0x03, VpllRegu + */ + REG_INIT(AB8500_VPLLVANAREGU, 0x04, 0x06, 0x0f), + /* + * 0x01, VrefDDREna + * 0x02, VrefDDRSleepMode + */ + REG_INIT(AB8500_VREFDDR, 0x04, 0x07, 0x03), + /* + * 0x03, VextSupply1Regu + * 0x0c, VextSupply2Regu + * 0x30, VextSupply3Regu + * 0x40, ExtSupply2Bypass + * 0x80, ExtSupply3Bypass + */ + REG_INIT(AB8500_EXTSUPPLYREGU, 0x04, 0x08, 0xff), + /* + * 0x03, Vaux1Regu + * 0x0c, Vaux2Regu + */ + REG_INIT(AB8500_VAUX12REGU, 0x04, 0x09, 0x0f), + /* + * 0x03, Vaux3Regu + */ + REG_INIT(AB8500_VRF1VAUX3REGU, 0x04, 0x0a, 0x03), + /* + * 0x3f, Vsmps1Sel1 + */ + REG_INIT(AB8500_VSMPS1SEL1, 0x04, 0x13, 0x3f), + /* + * 0x0f, Vaux1Sel + */ + REG_INIT(AB8500_VAUX1SEL, 0x04, 0x1f, 0x0f), + /* + * 0x0f, Vaux2Sel + */ + REG_INIT(AB8500_VAUX2SEL, 0x04, 0x20, 0x0f), + /* + * 0x07, Vaux3Sel + */ + REG_INIT(AB8500_VRF1VAUX3SEL, 0x04, 0x21, 0x07), + /* + * 0x01, VextSupply12LP + */ + REG_INIT(AB8500_REGUCTRL2SPARE, 0x04, 0x22, 0x01), + /* + * 0x04, Vaux1Disch + * 0x08, Vaux2Disch + * 0x10, Vaux3Disch + * 0x20, Vintcore12Disch + * 0x40, VTVoutDisch + * 0x80, VaudioDisch + */ + REG_INIT(AB8500_REGUCTRLDISCH, 0x04, 0x43, 0xfc), + /* + * 0x02, VanaDisch + * 0x04, VdmicPullDownEna + * 0x10, VdmicDisch + */ + REG_INIT(AB8500_REGUCTRLDISCH2, 0x04, 0x44, 0x16), +}; + static __devinit int ab8500_regulator_probe(struct platform_device *pdev) { struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent); @@ -544,10 +724,51 @@ static __devinit int ab8500_regulator_probe(struct platform_device *pdev) /* make sure the platform data has the correct size */ if (pdata->num_regulator != ARRAY_SIZE(ab8500_regulator_info)) { - dev_err(&pdev->dev, "platform configuration error\n"); + dev_err(&pdev->dev, "Configuration error: size mismatch.\n"); return -EINVAL; } + /* initialize registers */ + for (i = 0; i < pdata->num_regulator_reg_init; i++) { + int id; + u8 value; + + id = pdata->regulator_reg_init[i].id; + value = pdata->regulator_reg_init[i].value; + + /* check for configuration errors */ + if (id >= AB8500_NUM_REGULATOR_REGISTERS) { + dev_err(&pdev->dev, + "Configuration error: id outside range.\n"); + return -EINVAL; + } + if (value & ~ab8500_reg_init[id].mask) { + dev_err(&pdev->dev, + "Configuration error: value outside mask.\n"); + return -EINVAL; + } + + /* initialize register */ + err = abx500_mask_and_set_register_interruptible(&pdev->dev, + ab8500_reg_init[id].bank, + ab8500_reg_init[id].addr, + ab8500_reg_init[id].mask, + value); + if (err < 0) { + dev_err(&pdev->dev, + "Failed to initialize 0x%02x, 0x%02x.\n", + ab8500_reg_init[id].bank, + ab8500_reg_init[id].addr); + return err; + } + dev_vdbg(&pdev->dev, + " init: 0x%02x, 0x%02x, 0x%02x, 0x%02x\n", + ab8500_reg_init[id].bank, + ab8500_reg_init[id].addr, + ab8500_reg_init[id].mask, + value); + } + /* register all regulators */ for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) { struct ab8500_regulator_info *info = NULL; diff --git a/include/linux/mfd/ab8500.h b/include/linux/mfd/ab8500.h index 56f8dea72152..6e4f77ef4d20 100644 --- a/include/linux/mfd/ab8500.h +++ b/include/linux/mfd/ab8500.h @@ -139,17 +139,23 @@ struct ab8500 { u8 oldmask[AB8500_NUM_IRQ_REGS]; }; +struct regulator_reg_init; struct regulator_init_data; /** * struct ab8500_platform_data - AB8500 platform data * @irq_base: start of AB8500 IRQs, AB8500_NR_IRQS will be used * @init: board-specific initialization after detection of ab8500 + * @num_regulator_reg_init: number of regulator init registers + * @regulator_reg_init: regulator init registers + * @num_regulator: number of regulators * @regulator: machine-specific constraints for regulators */ struct ab8500_platform_data { int irq_base; void (*init) (struct ab8500 *); + int num_regulator_reg_init; + struct ab8500_regulator_reg_init *regulator_reg_init; int num_regulator; struct regulator_init_data *regulator; }; diff --git a/include/linux/regulator/ab8500.h b/include/linux/regulator/ab8500.h index d4eacdef2017..76579f964a29 100644 --- a/include/linux/regulator/ab8500.h +++ b/include/linux/regulator/ab8500.h @@ -3,8 +3,8 @@ * * License Terms: GNU General Public License v2 * - * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson - * + * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson + * Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson */ #ifndef __LINUX_MFD_AB8500_REGULATOR_H @@ -25,4 +25,50 @@ enum ab8500_regulator_id { AB8500_LDO_ANA, AB8500_NUM_REGULATORS, }; + +/* AB8500 register initialization */ +struct ab8500_regulator_reg_init { + int id; + u8 value; +}; + +#define INIT_REGULATOR_REGISTER(_id, _value) \ + { \ + .id = _id, \ + .value = _value, \ + } + +/* AB8500 registers */ +enum ab8500_regulator_reg { + AB8500_REGUREQUESTCTRL2, + AB8500_REGUREQUESTCTRL3, + AB8500_REGUREQUESTCTRL4, + AB8500_REGUSYSCLKREQ1HPVALID1, + AB8500_REGUSYSCLKREQ1HPVALID2, + AB8500_REGUHWHPREQ1VALID1, + AB8500_REGUHWHPREQ1VALID2, + AB8500_REGUHWHPREQ2VALID1, + AB8500_REGUHWHPREQ2VALID2, + AB8500_REGUSWHPREQVALID1, + AB8500_REGUSWHPREQVALID2, + AB8500_REGUSYSCLKREQVALID1, + AB8500_REGUSYSCLKREQVALID2, + AB8500_REGUMISC1, + AB8500_VAUDIOSUPPLY, + AB8500_REGUCTRL1VAMIC, + AB8500_VPLLVANAREGU, + AB8500_VREFDDR, + AB8500_EXTSUPPLYREGU, + AB8500_VAUX12REGU, + AB8500_VRF1VAUX3REGU, + AB8500_VAUX1SEL, + AB8500_VAUX2SEL, + AB8500_VRF1VAUX3SEL, + AB8500_REGUCTRL2SPARE, + AB8500_REGUCTRLDISCH, + AB8500_REGUCTRLDISCH2, + AB8500_VSMPS1SEL1, + AB8500_NUM_REGULATOR_REGISTERS, +}; + #endif -- cgit v1.2.3 From 77af1b2641faf45788a0d480db94082ebee931dc Mon Sep 17 00:00:00 2001 From: Linus Walleij <linus.walleij@linaro.org> Date: Thu, 17 Mar 2011 13:24:36 +0100 Subject: regulator: add set_voltage_time_sel infrastructure This makes it possible to set the stabilization time for voltage regulators in the same manner as enable_time(). The interface only supports regulators that implements fixed selectors. Cc: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/core.c | 25 +++++++++++++++++++++++++ include/linux/regulator/driver.h | 11 +++++++++-- 2 files changed, 34 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index e611f6797e6a..e7e4460dcb92 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1629,6 +1629,7 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) { int ret; + int delay = 0; unsigned int selector; trace_regulator_set_voltage(rdev_get_name(rdev), min_uV, max_uV); @@ -1662,6 +1663,22 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev, } } + /* + * If we can't obtain the old selector there is not enough + * info to call set_voltage_time_sel(). + */ + if (rdev->desc->ops->set_voltage_time_sel && + rdev->desc->ops->get_voltage_sel) { + unsigned int old_selector = 0; + + ret = rdev->desc->ops->get_voltage_sel(rdev); + if (ret < 0) + return ret; + old_selector = ret; + delay = rdev->desc->ops->set_voltage_time_sel(rdev, + old_selector, selector); + } + if (best_val != INT_MAX) { ret = rdev->desc->ops->set_voltage_sel(rdev, selector); selector = best_val; @@ -1672,6 +1689,14 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev, ret = -EINVAL; } + /* Insert any necessary delays */ + if (delay >= 1000) { + mdelay(delay / 1000); + udelay(delay % 1000); + } else if (delay) { + udelay(delay); + } + if (ret == 0) _notifier_call_chain(rdev, REGULATOR_EVENT_VOLTAGE_CHANGE, NULL); diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index b8ed16a33c47..6c433b89c80d 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -63,7 +63,11 @@ enum regulator_status { * when running with the specified parameters. * * @enable_time: Time taken for the regulator voltage output voltage to - * stabalise after being enabled, in microseconds. + * stabilise after being enabled, in microseconds. + * @set_voltage_time_sel: Time taken for the regulator voltage output voltage + * to stabilise after being set to a new value, in microseconds. + * The function provides the from and to voltage selector, the + * function should return the worst case. * * @set_suspend_voltage: Set the voltage for the regulator when the system * is suspended. @@ -103,8 +107,11 @@ struct regulator_ops { int (*set_mode) (struct regulator_dev *, unsigned int mode); unsigned int (*get_mode) (struct regulator_dev *); - /* Time taken to enable the regulator */ + /* Time taken to enable or set voltage on the regulator */ int (*enable_time) (struct regulator_dev *); + int (*set_voltage_time_sel) (struct regulator_dev *, + unsigned int old_selector, + unsigned int new_selector); /* report regulator status ... most other accessors report * control inputs, this reports results of combining inputs -- cgit v1.2.3 From 88cd222b259d62148ab8c82398498b1a01314476 Mon Sep 17 00:00:00 2001 From: Linus Walleij <linus.walleij@linaro.org> Date: Thu, 17 Mar 2011 13:24:52 +0100 Subject: regulator: provide consumer interface for fall/rise time This exposes the functionality for rise/fall fime when setting voltage to the consumers. Cc: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/core.c | 45 ++++++++++++++++++++++++++++++++++++++ include/linux/regulator/consumer.h | 2 ++ 2 files changed, 47 insertions(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index e7e4460dcb92..3ffc6979d164 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1764,6 +1764,51 @@ out: } EXPORT_SYMBOL_GPL(regulator_set_voltage); +/** + * regulator_set_voltage_time - get raise/fall time + * @regulator: regulator source + * @old_uV: starting voltage in microvolts + * @new_uV: target voltage in microvolts + * + * Provided with the starting and ending voltage, this function attempts to + * calculate the time in microseconds required to rise or fall to this new + * voltage. + */ +int regulator_set_voltage_time(struct regulator *regulator, + int old_uV, int new_uV) +{ + struct regulator_dev *rdev = regulator->rdev; + struct regulator_ops *ops = rdev->desc->ops; + int old_sel = -1; + int new_sel = -1; + int voltage; + int i; + + /* Currently requires operations to do this */ + if (!ops->list_voltage || !ops->set_voltage_time_sel + || !rdev->desc->n_voltages) + return -EINVAL; + + for (i = 0; i < rdev->desc->n_voltages; i++) { + /* We only look for exact voltage matches here */ + voltage = regulator_list_voltage(regulator, i); + if (voltage < 0) + return -EINVAL; + if (voltage == 0) + continue; + if (voltage == old_uV) + old_sel = i; + if (voltage == new_uV) + new_sel = i; + } + + if (old_sel < 0 || new_sel < 0) + return -EINVAL; + + return ops->set_voltage_time_sel(rdev, old_sel, new_sel); +} +EXPORT_SYMBOL_GPL(regulator_set_voltage_time); + /** * regulator_sync_voltage - re-apply last regulator output voltage * @regulator: regulator source diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 7954f6bd7edb..9e87c1cb7270 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -153,6 +153,8 @@ int regulator_list_voltage(struct regulator *regulator, unsigned selector); int regulator_is_supported_voltage(struct regulator *regulator, int min_uV, int max_uV); int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV); +int regulator_set_voltage_time(struct regulator *regulator, + int old_uV, int new_uV); int regulator_get_voltage(struct regulator *regulator); int regulator_sync_voltage(struct regulator *regulator); int regulator_set_current_limit(struct regulator *regulator, -- cgit v1.2.3 From 42ab616afe8844261828395cc2e4708c867412c2 Mon Sep 17 00:00:00 2001 From: Linus Walleij <linus.walleij@linaro.org> Date: Thu, 17 Mar 2011 13:25:02 +0100 Subject: regulator: add ab8500 enable and raise time delays This uses the new infrastructure to provide proper delays when enabling or setting the voltage of one specific regulator. Cc: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/ab8500.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index d157146c8655..02f3c2333c83 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -38,6 +38,7 @@ * @voltage_mask: mask to control regulator voltage * @voltages: supported voltage table * @voltages_len: number of supported voltages for the regulator + * @delay: startup/set voltage delay in us */ struct ab8500_regulator_info { struct device *dev; @@ -55,6 +56,7 @@ struct ab8500_regulator_info { u8 voltage_mask; int const *voltages; int voltages_len; + unsigned int delay; }; /* voltage tables for the vauxn/vintcore supplies */ @@ -290,6 +292,29 @@ static int ab8500_regulator_set_voltage(struct regulator_dev *rdev, return ret; } +static int ab8500_regulator_enable_time(struct regulator_dev *rdev) +{ + struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); + + return info->delay; +} + +static int ab8500_regulator_set_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_sel, + unsigned int new_sel) +{ + struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); + int ret; + + /* If the regulator isn't on, it won't take time here */ + ret = ab8500_regulator_is_enabled(rdev); + if (ret < 0) + return ret; + if (!ret) + return 0; + return info->delay; +} + static struct regulator_ops ab8500_regulator_ops = { .enable = ab8500_regulator_enable, .disable = ab8500_regulator_disable, @@ -297,6 +322,8 @@ static struct regulator_ops ab8500_regulator_ops = { .get_voltage = ab8500_regulator_get_voltage, .set_voltage = ab8500_regulator_set_voltage, .list_voltage = ab8500_list_voltage, + .enable_time = ab8500_regulator_enable_time, + .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel, }; static int ab8500_fixed_get_voltage(struct regulator_dev *rdev) @@ -317,6 +344,8 @@ static struct regulator_ops ab8500_regulator_fixed_ops = { .is_enabled = ab8500_regulator_is_enabled, .get_voltage = ab8500_fixed_get_voltage, .list_voltage = ab8500_list_voltage, + .enable_time = ab8500_regulator_enable_time, + .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel, }; static struct ab8500_regulator_info @@ -426,6 +455,7 @@ static struct ab8500_regulator_info .owner = THIS_MODULE, .n_voltages = 1, }, + .delay = 10000, .fixed_uV = 2000000, .update_bank = 0x03, .update_reg = 0x80, -- cgit v1.2.3 From 69952369ed2367bae0ae207a6e380ed40cdbc414 Mon Sep 17 00:00:00 2001 From: Mark Brown <broonie@opensource.wolfsonmicro.com> Date: Fri, 18 Mar 2011 12:43:35 +0000 Subject: regulator: Remove more wm831x-specific IRQ operations These are the last users in the tree. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/wm831x-dcdc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 857d741539da..e93453b1b978 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -604,8 +604,8 @@ static __devexit int wm831x_buckv_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); - wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "HC"), dcdc); - wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc); + free_irq(platform_get_irq_byname(pdev, "HC"), dcdc); + free_irq(platform_get_irq_byname(pdev, "UV"), dcdc); regulator_unregister(dcdc->regulator); if (dcdc->dvs_gpio) gpio_free(dcdc->dvs_gpio); @@ -780,7 +780,7 @@ static __devexit int wm831x_buckp_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); - wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc); + free_irq(platform_get_irq_byname(pdev, "UV"), dcdc); regulator_unregister(dcdc->regulator); kfree(dcdc); -- cgit v1.2.3 From 5362b09849508db94a15f3f6996427aab248320a Mon Sep 17 00:00:00 2001 From: Randy Dunlap <randy.dunlap@oracle.com> Date: Thu, 24 Mar 2011 13:30:59 -0700 Subject: regulator: fix tps6524x section mismatch Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Fix section mismatch that is caused by init code calling exit code: pmic_remove() cannot be marked as __devexit. WARNING: drivers/regulator/tps6524x-regulator.o(.devinit.text+0x205): Section mismatch in reference from the function pmic_probe() to the function .devexit.text:pmic_remove() The function __devinit pmic_probe() references a function __devexit pmic_remove(). This is often seen when error handling in the init function uses functionality in the exit path. The fix is often to remove the __devexit annotation of pmic_remove() so it may be used outside an exit section. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Cyril Chemparathy <cyril@ti.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/tps6524x-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c index 176a6be5a8ce..9166aa0a9df7 100644 --- a/drivers/regulator/tps6524x-regulator.c +++ b/drivers/regulator/tps6524x-regulator.c @@ -596,7 +596,7 @@ static struct regulator_ops regulator_ops = { .get_current_limit = get_current_limit, }; -static int __devexit pmic_remove(struct spi_device *spi) +static int pmic_remove(struct spi_device *spi) { struct tps6524x *hw = spi_get_drvdata(spi); int i; -- cgit v1.2.3 From 3506999e2fd1eb7ed7375eaa67dcc1d1d60e8ccd Mon Sep 17 00:00:00 2001 From: Guenter Roeck <guenter.roeck@ericsson.com> Date: Mon, 21 Mar 2011 21:31:00 -0700 Subject: hwmon: (pmbus) Fix temperature limit register access Commit 8677011 added auto-update to temperature limit registers. Unfortunately, the update flag is also used to determine if an attribute is writable, which results in read-only temperature limit registers. To fix the problem, pass 'readonly' as separate flag to the function used to add sensor attributes. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> --- drivers/hwmon/pmbus_core.c | 70 ++++++++++++++++++++++++---------------------- 1 file changed, 36 insertions(+), 34 deletions(-) diff --git a/drivers/hwmon/pmbus_core.c b/drivers/hwmon/pmbus_core.c index 6474512f49b0..edfb92e41735 100644 --- a/drivers/hwmon/pmbus_core.c +++ b/drivers/hwmon/pmbus_core.c @@ -752,7 +752,7 @@ static void pmbus_add_boolean_cmp(struct pmbus_data *data, static void pmbus_add_sensor(struct pmbus_data *data, const char *name, const char *type, int seq, int page, int reg, enum pmbus_sensor_classes class, - bool update) + bool update, bool readonly) { struct pmbus_sensor *sensor; @@ -765,7 +765,7 @@ static void pmbus_add_sensor(struct pmbus_data *data, sensor->reg = reg; sensor->class = class; sensor->update = update; - if (update) + if (readonly) PMBUS_ADD_GET_ATTR(data, sensor->name, sensor, data->num_sensors); else @@ -916,14 +916,14 @@ static void pmbus_find_attributes(struct i2c_client *client, i0 = data->num_sensors; pmbus_add_label(data, "in", in_index, "vin", 0); - pmbus_add_sensor(data, "in", "input", in_index, - 0, PMBUS_READ_VIN, PSC_VOLTAGE_IN, true); + pmbus_add_sensor(data, "in", "input", in_index, 0, + PMBUS_READ_VIN, PSC_VOLTAGE_IN, true, true); if (pmbus_check_word_register(client, 0, PMBUS_VIN_UV_WARN_LIMIT)) { i1 = data->num_sensors; pmbus_add_sensor(data, "in", "min", in_index, 0, PMBUS_VIN_UV_WARN_LIMIT, - PSC_VOLTAGE_IN, false); + PSC_VOLTAGE_IN, false, false); if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) { pmbus_add_boolean_reg(data, "in", "min_alarm", in_index, @@ -937,7 +937,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "in", "lcrit", in_index, 0, PMBUS_VIN_UV_FAULT_LIMIT, - PSC_VOLTAGE_IN, false); + PSC_VOLTAGE_IN, false, false); if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) { pmbus_add_boolean_reg(data, "in", "lcrit_alarm", in_index, @@ -951,7 +951,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "in", "max", in_index, 0, PMBUS_VIN_OV_WARN_LIMIT, - PSC_VOLTAGE_IN, false); + PSC_VOLTAGE_IN, false, false); if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) { pmbus_add_boolean_reg(data, "in", "max_alarm", in_index, @@ -965,7 +965,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "in", "crit", in_index, 0, PMBUS_VIN_OV_FAULT_LIMIT, - PSC_VOLTAGE_IN, false); + PSC_VOLTAGE_IN, false, false); if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) { pmbus_add_boolean_reg(data, "in", "crit_alarm", in_index, @@ -988,7 +988,7 @@ static void pmbus_find_attributes(struct i2c_client *client, if (info->func[0] & PMBUS_HAVE_VCAP) { pmbus_add_label(data, "in", in_index, "vcap", 0); pmbus_add_sensor(data, "in", "input", in_index, 0, - PMBUS_READ_VCAP, PSC_VOLTAGE_IN, true); + PMBUS_READ_VCAP, PSC_VOLTAGE_IN, true, true); in_index++; } @@ -1004,13 +1004,13 @@ static void pmbus_find_attributes(struct i2c_client *client, i0 = data->num_sensors; pmbus_add_label(data, "in", in_index, "vout", page + 1); pmbus_add_sensor(data, "in", "input", in_index, page, - PMBUS_READ_VOUT, PSC_VOLTAGE_OUT, true); + PMBUS_READ_VOUT, PSC_VOLTAGE_OUT, true, true); if (pmbus_check_word_register(client, page, PMBUS_VOUT_UV_WARN_LIMIT)) { i1 = data->num_sensors; pmbus_add_sensor(data, "in", "min", in_index, page, PMBUS_VOUT_UV_WARN_LIMIT, - PSC_VOLTAGE_OUT, false); + PSC_VOLTAGE_OUT, false, false); if (info->func[page] & PMBUS_HAVE_STATUS_VOUT) { pmbus_add_boolean_reg(data, "in", "min_alarm", in_index, @@ -1025,7 +1025,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "in", "lcrit", in_index, page, PMBUS_VOUT_UV_FAULT_LIMIT, - PSC_VOLTAGE_OUT, false); + PSC_VOLTAGE_OUT, false, false); if (info->func[page] & PMBUS_HAVE_STATUS_VOUT) { pmbus_add_boolean_reg(data, "in", "lcrit_alarm", in_index, @@ -1040,7 +1040,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "in", "max", in_index, page, PMBUS_VOUT_OV_WARN_LIMIT, - PSC_VOLTAGE_OUT, false); + PSC_VOLTAGE_OUT, false, false); if (info->func[page] & PMBUS_HAVE_STATUS_VOUT) { pmbus_add_boolean_reg(data, "in", "max_alarm", in_index, @@ -1055,7 +1055,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "in", "crit", in_index, page, PMBUS_VOUT_OV_FAULT_LIMIT, - PSC_VOLTAGE_OUT, false); + PSC_VOLTAGE_OUT, false, false); if (info->func[page] & PMBUS_HAVE_STATUS_VOUT) { pmbus_add_boolean_reg(data, "in", "crit_alarm", in_index, @@ -1088,14 +1088,14 @@ static void pmbus_find_attributes(struct i2c_client *client, if (info->func[0] & PMBUS_HAVE_IIN) { i0 = data->num_sensors; pmbus_add_label(data, "curr", in_index, "iin", 0); - pmbus_add_sensor(data, "curr", "input", in_index, - 0, PMBUS_READ_IIN, PSC_CURRENT_IN, true); + pmbus_add_sensor(data, "curr", "input", in_index, 0, + PMBUS_READ_IIN, PSC_CURRENT_IN, true, true); if (pmbus_check_word_register(client, 0, PMBUS_IIN_OC_WARN_LIMIT)) { i1 = data->num_sensors; pmbus_add_sensor(data, "curr", "max", in_index, 0, PMBUS_IIN_OC_WARN_LIMIT, - PSC_CURRENT_IN, false); + PSC_CURRENT_IN, false, false); if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) { pmbus_add_boolean_reg(data, "curr", "max_alarm", in_index, @@ -1108,7 +1108,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "curr", "crit", in_index, 0, PMBUS_IIN_OC_FAULT_LIMIT, - PSC_CURRENT_IN, false); + PSC_CURRENT_IN, false, false); if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) pmbus_add_boolean_reg(data, "curr", "crit_alarm", @@ -1131,13 +1131,13 @@ static void pmbus_find_attributes(struct i2c_client *client, i0 = data->num_sensors; pmbus_add_label(data, "curr", in_index, "iout", page + 1); pmbus_add_sensor(data, "curr", "input", in_index, page, - PMBUS_READ_IOUT, PSC_CURRENT_OUT, true); + PMBUS_READ_IOUT, PSC_CURRENT_OUT, true, true); if (pmbus_check_word_register(client, page, PMBUS_IOUT_OC_WARN_LIMIT)) { i1 = data->num_sensors; pmbus_add_sensor(data, "curr", "max", in_index, page, PMBUS_IOUT_OC_WARN_LIMIT, - PSC_CURRENT_OUT, false); + PSC_CURRENT_OUT, false, false); if (info->func[page] & PMBUS_HAVE_STATUS_IOUT) { pmbus_add_boolean_reg(data, "curr", "max_alarm", in_index, @@ -1151,7 +1151,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "curr", "lcrit", in_index, page, PMBUS_IOUT_UC_FAULT_LIMIT, - PSC_CURRENT_OUT, false); + PSC_CURRENT_OUT, false, false); if (info->func[page] & PMBUS_HAVE_STATUS_IOUT) { pmbus_add_boolean_reg(data, "curr", "lcrit_alarm", @@ -1166,7 +1166,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "curr", "crit", in_index, page, PMBUS_IOUT_OC_FAULT_LIMIT, - PSC_CURRENT_OUT, false); + PSC_CURRENT_OUT, false, false); if (info->func[page] & PMBUS_HAVE_STATUS_IOUT) { pmbus_add_boolean_reg(data, "curr", "crit_alarm", @@ -1199,13 +1199,13 @@ static void pmbus_find_attributes(struct i2c_client *client, i0 = data->num_sensors; pmbus_add_label(data, "power", in_index, "pin", 0); pmbus_add_sensor(data, "power", "input", in_index, - 0, PMBUS_READ_PIN, PSC_POWER, true); + 0, PMBUS_READ_PIN, PSC_POWER, true, true); if (pmbus_check_word_register(client, 0, PMBUS_PIN_OP_WARN_LIMIT)) { i1 = data->num_sensors; pmbus_add_sensor(data, "power", "max", in_index, 0, PMBUS_PIN_OP_WARN_LIMIT, PSC_POWER, - false); + false, false); if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) pmbus_add_boolean_reg(data, "power", "alarm", @@ -1228,7 +1228,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i0 = data->num_sensors; pmbus_add_label(data, "power", in_index, "pout", page + 1); pmbus_add_sensor(data, "power", "input", in_index, page, - PMBUS_READ_POUT, PSC_POWER, true); + PMBUS_READ_POUT, PSC_POWER, true, true); /* * Per hwmon sysfs API, power_cap is to be used to limit output * power. @@ -1241,7 +1241,8 @@ static void pmbus_find_attributes(struct i2c_client *client, if (pmbus_check_word_register(client, page, PMBUS_POUT_MAX)) { i1 = data->num_sensors; pmbus_add_sensor(data, "power", "cap", in_index, page, - PMBUS_POUT_MAX, PSC_POWER, false); + PMBUS_POUT_MAX, PSC_POWER, + false, false); need_alarm = true; } if (pmbus_check_word_register(client, page, @@ -1249,7 +1250,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "power", "max", in_index, page, PMBUS_POUT_OP_WARN_LIMIT, PSC_POWER, - false); + false, false); need_alarm = true; } if (need_alarm && (info->func[page] & PMBUS_HAVE_STATUS_IOUT)) @@ -1264,7 +1265,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "power", "crit", in_index, page, PMBUS_POUT_OP_FAULT_LIMIT, PSC_POWER, - false); + false, false); if (info->func[page] & PMBUS_HAVE_STATUS_IOUT) pmbus_add_boolean_reg(data, "power", "crit_alarm", @@ -1302,7 +1303,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i0 = data->num_sensors; pmbus_add_sensor(data, "temp", "input", in_index, page, pmbus_temp_registers[t], - PSC_TEMPERATURE, true); + PSC_TEMPERATURE, true, true); /* * PMBus provides only one status register for TEMP1-3. @@ -1323,7 +1324,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "temp", "min", in_index, page, PMBUS_UT_WARN_LIMIT, - PSC_TEMPERATURE, true); + PSC_TEMPERATURE, true, false); if (info->func[page] & PMBUS_HAVE_STATUS_TEMP) { pmbus_add_boolean_cmp(data, "temp", "min_alarm", in_index, i1, i0, @@ -1338,7 +1339,7 @@ static void pmbus_find_attributes(struct i2c_client *client, pmbus_add_sensor(data, "temp", "lcrit", in_index, page, PMBUS_UT_FAULT_LIMIT, - PSC_TEMPERATURE, true); + PSC_TEMPERATURE, true, false); if (info->func[page] & PMBUS_HAVE_STATUS_TEMP) { pmbus_add_boolean_cmp(data, "temp", "lcrit_alarm", in_index, i1, i0, @@ -1352,7 +1353,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "temp", "max", in_index, page, PMBUS_OT_WARN_LIMIT, - PSC_TEMPERATURE, true); + PSC_TEMPERATURE, true, false); if (info->func[page] & PMBUS_HAVE_STATUS_TEMP) { pmbus_add_boolean_cmp(data, "temp", "max_alarm", in_index, i0, i1, @@ -1366,7 +1367,7 @@ static void pmbus_find_attributes(struct i2c_client *client, i1 = data->num_sensors; pmbus_add_sensor(data, "temp", "crit", in_index, page, PMBUS_OT_FAULT_LIMIT, - PSC_TEMPERATURE, true); + PSC_TEMPERATURE, true, false); if (info->func[page] & PMBUS_HAVE_STATUS_TEMP) { pmbus_add_boolean_cmp(data, "temp", "crit_alarm", in_index, i0, i1, @@ -1421,7 +1422,8 @@ static void pmbus_find_attributes(struct i2c_client *client, i0 = data->num_sensors; pmbus_add_sensor(data, "fan", "input", in_index, page, - pmbus_fan_registers[f], PSC_FAN, true); + pmbus_fan_registers[f], PSC_FAN, true, + true); /* * Each fan status register covers multiple fans, -- cgit v1.2.3 From 9ced0b95b3993660e7990cf6bf68c1a80f31544e Mon Sep 17 00:00:00 2001 From: Jens Axboe <jaxboe@fusionio.com> Date: Sat, 26 Mar 2011 19:49:54 +0100 Subject: ide: ensure that we re-run the queue handler The conversion to blk_delay_queue() missed parts of IDE. Add a blk_delay_queue() to ensure that the request handler gets reinvoked when it needs to. Note that in all but one place the old plug re-run delay of 3 msecs is used, even though it probably could be shorter for performance reasons in some of those cases. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/ide/ide-io.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index f4077840d3ab..0e406d73b2c8 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -440,6 +440,7 @@ void do_ide_request(struct request_queue *q) struct ide_host *host = hwif->host; struct request *rq = NULL; ide_startstop_t startstop; + unsigned long queue_run_ms = 3; /* old plug delay */ spin_unlock_irq(q->queue_lock); @@ -459,6 +460,9 @@ repeat: prev_port = hwif->host->cur_port; if (drive->dev_flags & IDE_DFLAG_SLEEPING && time_after(drive->sleep, jiffies)) { + unsigned long left = jiffies - drive->sleep; + + queue_run_ms = jiffies_to_msecs(left + 1); ide_unlock_port(hwif); goto plug_device; } @@ -547,8 +551,10 @@ plug_device: plug_device_2: spin_lock_irq(q->queue_lock); - if (rq) + if (rq) { blk_requeue_request(q, rq); + blk_delay_queue(q, queue_run_ms); + } } void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq) @@ -562,6 +568,10 @@ void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq) blk_requeue_request(q, rq); spin_unlock_irqrestore(q->queue_lock, flags); + + /* Use 3ms as that was the old plug delay */ + if (rq) + blk_delay_queue(q, 3); } static int drive_is_ready(ide_drive_t *drive) -- cgit v1.2.3 From 0b58b4e3e711aed17aa26fafd01be137f6a1ab2e Mon Sep 17 00:00:00 2001 From: Tejun Heo <tj@kernel.org> Date: Sat, 26 Mar 2011 19:52:59 +0100 Subject: staging: Fix bdops->check_events() misconversion in cyasblkdev_block.c Commit cafb0bfca1 (staging: Convert to bdops->check_events()) incorrectly set bd->user_disk_0->events while initializing bd->user_disk_1. Fix it. The problem was spotted by Milton's suspect code pattern detector. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Milton Miller <miltonm@bga.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> --- drivers/staging/westbridge/astoria/block/cyasblkdev_block.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/westbridge/astoria/block/cyasblkdev_block.c b/drivers/staging/westbridge/astoria/block/cyasblkdev_block.c index 842cd9214a5e..289729daba80 100644 --- a/drivers/staging/westbridge/astoria/block/cyasblkdev_block.c +++ b/drivers/staging/westbridge/astoria/block/cyasblkdev_block.c @@ -1191,7 +1191,7 @@ static int cyasblkdev_add_disks(int bus_num, bd->user_disk_1->first_minor = (devidx + 1) << CYASBLKDEV_SHIFT; bd->user_disk_1->minors = 8; bd->user_disk_1->fops = &cyasblkdev_bdops; - bd->user_disk_0->events = DISK_EVENT_MEDIA_CHANGE; + bd->user_disk_1->events = DISK_EVENT_MEDIA_CHANGE; bd->user_disk_1->private_data = bd; bd->user_disk_1->queue = bd->queue.queue; bd->dbgprn_flags = DBGPRN_RD_RQ; -- cgit v1.2.3 From fa1df691688f34cbcd5bf77bd084bbe47e9d6bfe Mon Sep 17 00:00:00 2001 From: Andres Salomon <dilinger@queued.net> Date: Mon, 21 Mar 2011 19:19:35 -0700 Subject: mfd: Add mfd_clone_cell(), convert cs5535-mfd/olpc-xo1 to it Replace mfd_shared_platform_driver_register with mfd_clone_cell. The former was called by an mfd client, and registered both a platform driver and device. The latter is called by an mfd driver, and registers only a platform device. The downside of this is that mfd drivers need to be modified whenever new clients are added that share a cell; the upside is that it fits Linux's driver model better. It's also simpler. This also converts cs5535-mfd/olpc-xo1 from the old API. cs5535-mfd now creates the olpc-xo1-{acpi,pms} devices, while olpc-xo1 binds to them via platform drivers. Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- arch/x86/platform/olpc/olpc-xo1.c | 11 ++++---- drivers/mfd/cs5535-mfd.c | 18 +++++++++++++ drivers/mfd/mfd-core.c | 53 ++++++++------------------------------- include/linux/mfd/core.h | 27 +++++++++++++------- 4 files changed, 52 insertions(+), 57 deletions(-) diff --git a/arch/x86/platform/olpc/olpc-xo1.c b/arch/x86/platform/olpc/olpc-xo1.c index 99513642a0e6..386e3a159cca 100644 --- a/arch/x86/platform/olpc/olpc-xo1.c +++ b/arch/x86/platform/olpc/olpc-xo1.c @@ -121,22 +121,21 @@ static int __init olpc_xo1_init(void) { int r; - r = mfd_shared_platform_driver_register(&cs5535_pms_drv, "cs5535-pms"); + r = platform_driver_register(&cs5535_pms_drv); if (r) return r; - r = mfd_shared_platform_driver_register(&cs5535_acpi_drv, - "cs5535-acpi"); + r = platform_driver_register(&cs5535_acpi_drv); if (r) - mfd_shared_platform_driver_unregister(&cs5535_pms_drv); + platform_driver_unregister(&cs5535_pms_drv); return r; } static void __exit olpc_xo1_exit(void) { - mfd_shared_platform_driver_unregister(&cs5535_acpi_drv); - mfd_shared_platform_driver_unregister(&cs5535_pms_drv); + platform_driver_unregister(&cs5535_acpi_drv); + platform_driver_unregister(&cs5535_pms_drv); } MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>"); diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c index 886a06871065..24959ddd9324 100644 --- a/drivers/mfd/cs5535-mfd.c +++ b/drivers/mfd/cs5535-mfd.c @@ -27,6 +27,7 @@ #include <linux/mfd/core.h> #include <linux/module.h> #include <linux/pci.h> +#include <asm/olpc.h> #define DRV_NAME "cs5535-mfd" @@ -111,6 +112,22 @@ static __devinitdata struct mfd_cell cs5535_mfd_cells[] = { }, }; +#ifdef CONFIG_OLPC +static void __devinit cs5535_clone_olpc_cells(void) +{ + const char *acpi_clones[] = { "olpc-xo1-acpi" }; + const char *pms_clones[] = { "olpc-xo1-pms" }; + + if (!machine_is_olpc()) + return; + + mfd_clone_cell("cs5535-acpi", acpi_clones, ARRAY_SIZE(acpi_clones)); + mfd_clone_cell("cs5535-pms", pms_clones, ARRAY_SIZE(pms_clones)); +} +#else +static void cs5535_clone_olpc_cells(void) { } +#endif + static int __devinit cs5535_mfd_probe(struct pci_dev *pdev, const struct pci_device_id *id) { @@ -139,6 +156,7 @@ static int __devinit cs5535_mfd_probe(struct pci_dev *pdev, dev_err(&pdev->dev, "MFD add devices failed: %d\n", err); goto err_disable; } + cs5535_clone_olpc_cells(); dev_info(&pdev->dev, "%zu devices registered.\n", ARRAY_SIZE(cs5535_mfd_cells)); diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index 79eda0264fb2..d01574d98870 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -184,16 +184,12 @@ void mfd_remove_devices(struct device *parent) } EXPORT_SYMBOL(mfd_remove_devices); -static int add_shared_platform_device(const char *cell, const char *name) +int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones) { struct mfd_cell cell_entry; struct device *dev; struct platform_device *pdev; - int err; - - /* check if we've already registered a device (don't fail if we have) */ - if (bus_find_device_by_name(&platform_bus_type, NULL, name)) - return 0; + int i; /* fetch the parent cell's device (should already be registered!) */ dev = bus_find_device_by_name(&platform_bus_type, NULL, cell); @@ -206,44 +202,17 @@ static int add_shared_platform_device(const char *cell, const char *name) WARN_ON(!cell_entry.enable); - cell_entry.name = name; - err = mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0); - if (err) - dev_err(dev, "MFD add devices failed: %d\n", err); - return err; -} - -int mfd_shared_platform_driver_register(struct platform_driver *drv, - const char *cellname) -{ - int err; - - err = add_shared_platform_device(cellname, drv->driver.name); - if (err) - printk(KERN_ERR "failed to add platform device %s\n", - drv->driver.name); - - err = platform_driver_register(drv); - if (err) - printk(KERN_ERR "failed to add platform driver %s\n", - drv->driver.name); - - return err; -} -EXPORT_SYMBOL(mfd_shared_platform_driver_register); - -void mfd_shared_platform_driver_unregister(struct platform_driver *drv) -{ - struct device *dev; - - dev = bus_find_device_by_name(&platform_bus_type, NULL, - drv->driver.name); - if (dev) - platform_device_unregister(to_platform_device(dev)); + for (i = 0; i < n_clones; i++) { + cell_entry.name = clones[i]; + /* don't give up if a single call fails; just report error */ + if (mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0)) + dev_err(dev, "failed to create platform device '%s'\n", + clones[i]); + } - platform_driver_unregister(drv); + return 0; } -EXPORT_SYMBOL(mfd_shared_platform_driver_unregister); +EXPORT_SYMBOL(mfd_clone_cell); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Ian Molton, Dmitry Baryshkov"); diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h index 1408bf8eed5f..ad1b19aa6508 100644 --- a/include/linux/mfd/core.h +++ b/include/linux/mfd/core.h @@ -62,6 +62,24 @@ struct mfd_cell { extern int mfd_cell_enable(struct platform_device *pdev); extern int mfd_cell_disable(struct platform_device *pdev); +/* + * "Clone" multiple platform devices for a single cell. This is to be used + * for devices that have multiple users of a cell. For example, if an mfd + * driver wants the cell "foo" to be used by a GPIO driver, an MTD driver, + * and a platform driver, the following bit of code would be use after first + * calling mfd_add_devices(): + * + * const char *fclones[] = { "foo-gpio", "foo-mtd" }; + * err = mfd_clone_cells("foo", fclones, ARRAY_SIZE(fclones)); + * + * Each driver (MTD, GPIO, and platform driver) would then register + * platform_drivers for "foo-mtd", "foo-gpio", and "foo", respectively. + * The cell's .enable/.disable hooks should be used to deal with hardware + * resource contention. + */ +extern int mfd_clone_cell(const char *cell, const char **clones, + size_t n_clones); + /* * Given a platform device that's been created by mfd_add_devices(), fetch * the mfd_cell that created it. @@ -87,13 +105,4 @@ extern int mfd_add_devices(struct device *parent, int id, extern void mfd_remove_devices(struct device *parent); -/* - * For MFD drivers with clients sharing access to resources, these create - * multiple platform devices per cell. Contention handling must still be - * handled via drivers (ie, with enable/disable hooks). - */ -extern int mfd_shared_platform_driver_register(struct platform_driver *drv, - const char *cellname); -extern void mfd_shared_platform_driver_unregister(struct platform_driver *drv); - #endif -- cgit v1.2.3 From adfa4bd4a8bfc53ca7370c57be240d35c2ec28e2 Mon Sep 17 00:00:00 2001 From: Daniel Drake <dsd@laptop.org> Date: Tue, 22 Mar 2011 13:50:39 -0700 Subject: mfd: OLPC: Clean up names to match what OLPC actually uses The cs5535-pms cell doesn't actually need to be cloned, so we can drop that and simply have the olpc-xo1.c driver use "cs5535-pms" directly. Also, rename the cs5535-acpi clones to what we actually use for the (currently out-of-tree) SCI driver. In the process, that fixes a subtle bug in olpc-xo1.c which broke powerdown on XO-1s.. olpc-xo1-ac-acpi was a typo, not something that actually existed. Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- arch/x86/platform/olpc/olpc-xo1.c | 12 ++++++------ drivers/mfd/cs5535-mfd.c | 4 +--- 2 files changed, 7 insertions(+), 9 deletions(-) diff --git a/arch/x86/platform/olpc/olpc-xo1.c b/arch/x86/platform/olpc/olpc-xo1.c index 386e3a159cca..ab81fb271760 100644 --- a/arch/x86/platform/olpc/olpc-xo1.c +++ b/arch/x86/platform/olpc/olpc-xo1.c @@ -72,9 +72,9 @@ static int __devinit olpc_xo1_probe(struct platform_device *pdev) dev_err(&pdev->dev, "can't fetch device resource info\n"); return -EIO; } - if (strcmp(pdev->name, "olpc-xo1-pms") == 0) + if (strcmp(pdev->name, "cs5535-pms") == 0) pms_base = res->start; - else if (strcmp(pdev->name, "olpc-xo1-ac-acpi") == 0) + else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0) acpi_base = res->start; /* If we have both addresses, we can override the poweroff hook */ @@ -90,9 +90,9 @@ static int __devexit olpc_xo1_remove(struct platform_device *pdev) { mfd_cell_disable(pdev); - if (strcmp(pdev->name, "olpc-xo1-pms") == 0) + if (strcmp(pdev->name, "cs5535-pms") == 0) pms_base = 0; - else if (strcmp(pdev->name, "olpc-xo1-acpi") == 0) + else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0) acpi_base = 0; pm_power_off = NULL; @@ -101,7 +101,7 @@ static int __devexit olpc_xo1_remove(struct platform_device *pdev) static struct platform_driver cs5535_pms_drv = { .driver = { - .name = "olpc-xo1-pms", + .name = "cs5535-pms", .owner = THIS_MODULE, }, .probe = olpc_xo1_probe, @@ -110,7 +110,7 @@ static struct platform_driver cs5535_pms_drv = { static struct platform_driver cs5535_acpi_drv = { .driver = { - .name = "olpc-xo1-acpi", + .name = "olpc-xo1-pm-acpi", .owner = THIS_MODULE, }, .probe = olpc_xo1_probe, diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c index 24959ddd9324..155fa0407882 100644 --- a/drivers/mfd/cs5535-mfd.c +++ b/drivers/mfd/cs5535-mfd.c @@ -115,14 +115,12 @@ static __devinitdata struct mfd_cell cs5535_mfd_cells[] = { #ifdef CONFIG_OLPC static void __devinit cs5535_clone_olpc_cells(void) { - const char *acpi_clones[] = { "olpc-xo1-acpi" }; - const char *pms_clones[] = { "olpc-xo1-pms" }; + const char *acpi_clones[] = { "olpc-xo1-pm-acpi", "olpc-xo1-sci-acpi" }; if (!machine_is_olpc()) return; mfd_clone_cell("cs5535-acpi", acpi_clones, ARRAY_SIZE(acpi_clones)); - mfd_clone_cell("cs5535-pms", pms_clones, ARRAY_SIZE(pms_clones)); } #else static void cs5535_clone_olpc_cells(void) { } -- cgit v1.2.3 From 1206552b02f725bdc603e3153b4a32403d7da9e4 Mon Sep 17 00:00:00 2001 From: Axel Lin <axel.lin@gmail.com> Date: Wed, 23 Mar 2011 20:54:17 +0800 Subject: mfd: Constify i2c_device_id tables Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Harald Welte <laforge@gnumonks.org> Cc: Matti Aaltonen <matti.j.aaltonen@nokia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/pcf50633-core.c | 2 +- drivers/mfd/wl1273-core.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c index c1306ed43e3c..c7687f6a78a0 100644 --- a/drivers/mfd/pcf50633-core.c +++ b/drivers/mfd/pcf50633-core.c @@ -356,7 +356,7 @@ static int __devexit pcf50633_remove(struct i2c_client *client) return 0; } -static struct i2c_device_id pcf50633_id_table[] = { +static const struct i2c_device_id pcf50633_id_table[] = { {"pcf50633", 0x73}, {/* end of list */} }; diff --git a/drivers/mfd/wl1273-core.c b/drivers/mfd/wl1273-core.c index f76f6c798046..04914f2836c0 100644 --- a/drivers/mfd/wl1273-core.c +++ b/drivers/mfd/wl1273-core.c @@ -25,7 +25,7 @@ #define DRIVER_DESC "WL1273 FM Radio Core" -static struct i2c_device_id wl1273_driver_id_table[] = { +static const struct i2c_device_id wl1273_driver_id_table[] = { { WL1273_FM_DRIVER_NAME, 0 }, { } }; -- cgit v1.2.3 From 8de6bc7f6ba58dd717e4a65e3bf4a746116fb874 Mon Sep 17 00:00:00 2001 From: MyungJoo Ham <myungjoo.ham@samsung.com> Date: Thu, 24 Mar 2011 15:54:45 +0900 Subject: mfd: Add MAX8997/8966 IRQ control This patch enables IRQ handling for MAX8997/8966 chips. Please note that Fuel-Gauge-related IRQs are not implemented in this initial release. The fuel gauge module in MAX8997 is identical to MAX17042, which is already in Linux kernel. In order to use the already-existing MAX17042 driver for fuel gauge module in MAX8997, the main interrupt handler of MAX8997 should relay related interrupts to MAX17042 driver. However, in order to do this, we need to modify MAX17042 driver as well because MAX17042 driver does not have any interrupt handlers for now. We are not going to implement this in this initial release as it is not crucial in basic operations of MAX8997. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/Makefile | 2 +- drivers/mfd/max8997-irq.c | 377 ++++++++++++++++++++++++++++++++++++ include/linux/mfd/max8997-private.h | 21 ++ include/linux/mfd/max8997.h | 7 +- 4 files changed, 404 insertions(+), 3 deletions(-) create mode 100644 drivers/mfd/max8997-irq.c diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 47f5709f3828..ef489f253402 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -63,7 +63,7 @@ obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o obj-$(CONFIG_PMIC_DA903X) += da903x.o max8925-objs := max8925-core.o max8925-i2c.o obj-$(CONFIG_MFD_MAX8925) += max8925.o -obj-$(CONFIG_MFD_MAX8997) += max8997.o +obj-$(CONFIG_MFD_MAX8997) += max8997.o max8997-irq.o obj-$(CONFIG_MFD_MAX8998) += max8998.o max8998-irq.o pcf50633-objs := pcf50633-core.o pcf50633-irq.o diff --git a/drivers/mfd/max8997-irq.c b/drivers/mfd/max8997-irq.c new file mode 100644 index 000000000000..e85c874133c4 --- /dev/null +++ b/drivers/mfd/max8997-irq.c @@ -0,0 +1,377 @@ +/* + * max8997-irq.c - Interrupt controller support for MAX8997 + * + * Copyright (C) 2011 Samsung Electronics Co.Ltd + * MyungJoo Ham <myungjoo.ham@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * This driver is based on max8998-irq.c + */ + +#include <linux/err.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/mfd/max8997.h> +#include <linux/mfd/max8997-private.h> + +static const u8 max8997_mask_reg[] = { + [PMIC_INT1] = MAX8997_REG_INT1MSK, + [PMIC_INT2] = MAX8997_REG_INT2MSK, + [PMIC_INT3] = MAX8997_REG_INT3MSK, + [PMIC_INT4] = MAX8997_REG_INT4MSK, + [FUEL_GAUGE] = MAX8997_REG_INVALID, + [MUIC_INT1] = MAX8997_MUIC_REG_INTMASK1, + [MUIC_INT2] = MAX8997_MUIC_REG_INTMASK2, + [MUIC_INT3] = MAX8997_MUIC_REG_INTMASK3, + [GPIO_LOW] = MAX8997_REG_INVALID, + [GPIO_HI] = MAX8997_REG_INVALID, + [FLASH_STATUS] = MAX8997_REG_INVALID, +}; + +static struct i2c_client *get_i2c(struct max8997_dev *max8997, + enum max8997_irq_source src) +{ + switch (src) { + case PMIC_INT1 ... PMIC_INT4: + return max8997->i2c; + case FUEL_GAUGE: + return NULL; + case MUIC_INT1 ... MUIC_INT3: + return max8997->muic; + case GPIO_LOW ... GPIO_HI: + return max8997->i2c; + case FLASH_STATUS: + return max8997->i2c; + default: + return ERR_PTR(-EINVAL); + } + + return ERR_PTR(-EINVAL); +} + +struct max8997_irq_data { + int mask; + enum max8997_irq_source group; +}; + +#define DECLARE_IRQ(idx, _group, _mask) \ + [(idx)] = { .group = (_group), .mask = (_mask) } +static const struct max8997_irq_data max8997_irqs[] = { + DECLARE_IRQ(MAX8997_PMICIRQ_PWRONR, PMIC_INT1, 1 << 0), + DECLARE_IRQ(MAX8997_PMICIRQ_PWRONF, PMIC_INT1, 1 << 1), + DECLARE_IRQ(MAX8997_PMICIRQ_PWRON1SEC, PMIC_INT1, 1 << 3), + DECLARE_IRQ(MAX8997_PMICIRQ_JIGONR, PMIC_INT1, 1 << 4), + DECLARE_IRQ(MAX8997_PMICIRQ_JIGONF, PMIC_INT1, 1 << 5), + DECLARE_IRQ(MAX8997_PMICIRQ_LOWBAT2, PMIC_INT1, 1 << 6), + DECLARE_IRQ(MAX8997_PMICIRQ_LOWBAT1, PMIC_INT1, 1 << 7), + + DECLARE_IRQ(MAX8997_PMICIRQ_JIGR, PMIC_INT2, 1 << 0), + DECLARE_IRQ(MAX8997_PMICIRQ_JIGF, PMIC_INT2, 1 << 1), + DECLARE_IRQ(MAX8997_PMICIRQ_MR, PMIC_INT2, 1 << 2), + DECLARE_IRQ(MAX8997_PMICIRQ_DVS1OK, PMIC_INT2, 1 << 3), + DECLARE_IRQ(MAX8997_PMICIRQ_DVS2OK, PMIC_INT2, 1 << 4), + DECLARE_IRQ(MAX8997_PMICIRQ_DVS3OK, PMIC_INT2, 1 << 5), + DECLARE_IRQ(MAX8997_PMICIRQ_DVS4OK, PMIC_INT2, 1 << 6), + + DECLARE_IRQ(MAX8997_PMICIRQ_CHGINS, PMIC_INT3, 1 << 0), + DECLARE_IRQ(MAX8997_PMICIRQ_CHGRM, PMIC_INT3, 1 << 1), + DECLARE_IRQ(MAX8997_PMICIRQ_DCINOVP, PMIC_INT3, 1 << 2), + DECLARE_IRQ(MAX8997_PMICIRQ_TOPOFFR, PMIC_INT3, 1 << 3), + DECLARE_IRQ(MAX8997_PMICIRQ_CHGRSTF, PMIC_INT3, 1 << 5), + DECLARE_IRQ(MAX8997_PMICIRQ_MBCHGTMEXPD, PMIC_INT3, 1 << 7), + + DECLARE_IRQ(MAX8997_PMICIRQ_RTC60S, PMIC_INT4, 1 << 0), + DECLARE_IRQ(MAX8997_PMICIRQ_RTCA1, PMIC_INT4, 1 << 1), + DECLARE_IRQ(MAX8997_PMICIRQ_RTCA2, PMIC_INT4, 1 << 2), + DECLARE_IRQ(MAX8997_PMICIRQ_SMPL_INT, PMIC_INT4, 1 << 3), + DECLARE_IRQ(MAX8997_PMICIRQ_RTC1S, PMIC_INT4, 1 << 4), + DECLARE_IRQ(MAX8997_PMICIRQ_WTSR, PMIC_INT4, 1 << 5), + + DECLARE_IRQ(MAX8997_MUICIRQ_ADCError, MUIC_INT1, 1 << 2), + DECLARE_IRQ(MAX8997_MUICIRQ_ADCLow, MUIC_INT1, 1 << 1), + DECLARE_IRQ(MAX8997_MUICIRQ_ADC, MUIC_INT1, 1 << 0), + + DECLARE_IRQ(MAX8997_MUICIRQ_VBVolt, MUIC_INT2, 1 << 4), + DECLARE_IRQ(MAX8997_MUICIRQ_DBChg, MUIC_INT2, 1 << 3), + DECLARE_IRQ(MAX8997_MUICIRQ_DCDTmr, MUIC_INT2, 1 << 2), + DECLARE_IRQ(MAX8997_MUICIRQ_ChgDetRun, MUIC_INT2, 1 << 1), + DECLARE_IRQ(MAX8997_MUICIRQ_ChgTyp, MUIC_INT2, 1 << 0), + + DECLARE_IRQ(MAX8997_MUICIRQ_OVP, MUIC_INT3, 1 << 2), +}; + +static void max8997_irq_lock(struct irq_data *data) +{ + struct max8997_dev *max8997 = get_irq_chip_data(data->irq); + + mutex_lock(&max8997->irqlock); +} + +static void max8997_irq_sync_unlock(struct irq_data *data) +{ + struct max8997_dev *max8997 = get_irq_chip_data(data->irq); + int i; + + for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) { + u8 mask_reg = max8997_mask_reg[i]; + struct i2c_client *i2c = get_i2c(max8997, i); + + if (mask_reg == MAX8997_REG_INVALID || + IS_ERR_OR_NULL(i2c)) + continue; + max8997->irq_masks_cache[i] = max8997->irq_masks_cur[i]; + + max8997_write_reg(i2c, max8997_mask_reg[i], + max8997->irq_masks_cur[i]); + } + + mutex_unlock(&max8997->irqlock); +} + +static const inline struct max8997_irq_data * +irq_to_max8997_irq(struct max8997_dev *max8997, int irq) +{ + return &max8997_irqs[irq - max8997->irq_base]; +} + +static void max8997_irq_mask(struct irq_data *data) +{ + struct max8997_dev *max8997 = get_irq_chip_data(data->irq); + const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997, + data->irq); + + max8997->irq_masks_cur[irq_data->group] |= irq_data->mask; +} + +static void max8997_irq_unmask(struct irq_data *data) +{ + struct max8997_dev *max8997 = get_irq_chip_data(data->irq); + const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997, + data->irq); + + max8997->irq_masks_cur[irq_data->group] &= ~irq_data->mask; +} + +static struct irq_chip max8997_irq_chip = { + .name = "max8997", + .irq_bus_lock = max8997_irq_lock, + .irq_bus_sync_unlock = max8997_irq_sync_unlock, + .irq_mask = max8997_irq_mask, + .irq_unmask = max8997_irq_unmask, +}; + +#define MAX8997_IRQSRC_PMIC (1 << 1) +#define MAX8997_IRQSRC_FUELGAUGE (1 << 2) +#define MAX8997_IRQSRC_MUIC (1 << 3) +#define MAX8997_IRQSRC_GPIO (1 << 4) +#define MAX8997_IRQSRC_FLASH (1 << 5) +static irqreturn_t max8997_irq_thread(int irq, void *data) +{ + struct max8997_dev *max8997 = data; + u8 irq_reg[MAX8997_IRQ_GROUP_NR] = {}; + u8 irq_src; + int ret; + int i; + + ret = max8997_read_reg(max8997->i2c, MAX8997_REG_INTSRC, &irq_src); + if (ret < 0) { + dev_err(max8997->dev, "Failed to read interrupt source: %d\n", + ret); + return IRQ_NONE; + } + + if (irq_src & MAX8997_IRQSRC_PMIC) { + /* PMIC INT1 ~ INT4 */ + max8997_bulk_read(max8997->i2c, MAX8997_REG_INT1, 4, + &irq_reg[PMIC_INT1]); + } + if (irq_src & MAX8997_IRQSRC_FUELGAUGE) { + /* + * TODO: FUEL GAUGE + * + * This is to be supported by Max17042 driver. When + * an interrupt incurs here, it should be relayed to a + * Max17042 device that is connected (probably by + * platform-data). However, we do not have interrupt + * handling in Max17042 driver currently. The Max17042 IRQ + * driver should be ready to be used as a stand-alone device and + * a Max8997-dependent device. Because it is not ready in + * Max17042-side and it is not too critical in operating + * Max8997, we do not implement this in initial releases. + */ + irq_reg[FUEL_GAUGE] = 0; + } + if (irq_src & MAX8997_IRQSRC_MUIC) { + /* MUIC INT1 ~ INT3 */ + max8997_bulk_read(max8997->muic, MAX8997_MUIC_REG_INT1, 3, + &irq_reg[MUIC_INT1]); + } + if (irq_src & MAX8997_IRQSRC_GPIO) { + /* GPIO Interrupt */ + u8 gpio_info[MAX8997_NUM_GPIO]; + + irq_reg[GPIO_LOW] = 0; + irq_reg[GPIO_HI] = 0; + + max8997_bulk_read(max8997->i2c, MAX8997_REG_GPIOCNTL1, + MAX8997_NUM_GPIO, gpio_info); + for (i = 0; i < MAX8997_NUM_GPIO; i++) { + bool interrupt = false; + + switch (gpio_info[i] & MAX8997_GPIO_INT_MASK) { + case MAX8997_GPIO_INT_BOTH: + if (max8997->gpio_status[i] != gpio_info[i]) + interrupt = true; + break; + case MAX8997_GPIO_INT_RISE: + if ((max8997->gpio_status[i] != gpio_info[i]) && + (gpio_info[i] & MAX8997_GPIO_DATA_MASK)) + interrupt = true; + break; + case MAX8997_GPIO_INT_FALL: + if ((max8997->gpio_status[i] != gpio_info[i]) && + !(gpio_info[i] & MAX8997_GPIO_DATA_MASK)) + interrupt = true; + break; + default: + break; + } + + if (interrupt) { + if (i < 8) + irq_reg[GPIO_LOW] |= (1 << i); + else + irq_reg[GPIO_HI] |= (1 << (i - 8)); + } + + } + } + if (irq_src & MAX8997_IRQSRC_FLASH) { + /* Flash Status Interrupt */ + ret = max8997_read_reg(max8997->i2c, MAX8997_REG_FLASHSTATUS, + &irq_reg[FLASH_STATUS]); + } + + /* Apply masking */ + for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) + irq_reg[i] &= ~max8997->irq_masks_cur[i]; + + /* Report */ + for (i = 0; i < MAX8997_IRQ_NR; i++) { + if (irq_reg[max8997_irqs[i].group] & max8997_irqs[i].mask) + handle_nested_irq(max8997->irq_base + i); + } + + return IRQ_HANDLED; +} + +int max8997_irq_resume(struct max8997_dev *max8997) +{ + if (max8997->irq && max8997->irq_base) + max8997_irq_thread(max8997->irq_base, max8997); + return 0; +} + +int max8997_irq_init(struct max8997_dev *max8997) +{ + int i; + int cur_irq; + int ret; + u8 val; + + if (!max8997->irq) { + dev_warn(max8997->dev, "No interrupt specified.\n"); + max8997->irq_base = 0; + return 0; + } + + if (!max8997->irq_base) { + dev_err(max8997->dev, "No interrupt base specified.\n"); + return 0; + } + + mutex_init(&max8997->irqlock); + + /* Mask individual interrupt sources */ + for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) { + struct i2c_client *i2c; + + max8997->irq_masks_cur[i] = 0xff; + max8997->irq_masks_cache[i] = 0xff; + i2c = get_i2c(max8997, i); + + if (IS_ERR_OR_NULL(i2c)) + continue; + if (max8997_mask_reg[i] == MAX8997_REG_INVALID) + continue; + + max8997_write_reg(i2c, max8997_mask_reg[i], 0xff); + } + + for (i = 0; i < MAX8997_NUM_GPIO; i++) { + max8997->gpio_status[i] = (max8997_read_reg(max8997->i2c, + MAX8997_REG_GPIOCNTL1 + i, + &val) + & MAX8997_GPIO_DATA_MASK) ? + true : false; + } + + /* Register with genirq */ + for (i = 0; i < MAX8997_IRQ_NR; i++) { + cur_irq = i + max8997->irq_base; + set_irq_chip_data(cur_irq, max8997); + set_irq_chip_and_handler(cur_irq, &max8997_irq_chip, + handle_edge_irq); + set_irq_nested_thread(cur_irq, 1); +#ifdef CONFIG_ARM + set_irq_flags(cur_irq, IRQF_VALID); +#else + set_irq_noprobe(cur_irq); +#endif + } + + ret = request_threaded_irq(max8997->irq, NULL, max8997_irq_thread, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "max8997-irq", max8997); + + if (ret) { + dev_err(max8997->dev, "Failed to request IRQ %d: %d\n", + max8997->irq, ret); + return ret; + } + + if (!max8997->ono) + return 0; + + ret = request_threaded_irq(max8997->ono, NULL, max8997_irq_thread, + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | + IRQF_ONESHOT, "max8997-ono", max8997); + + if (ret) + dev_err(max8997->dev, "Failed to request ono-IRQ %d: %d\n", + max8997->ono, ret); + + return 0; +} + +void max8997_irq_exit(struct max8997_dev *max8997) +{ + if (max8997->ono) + free_irq(max8997->ono, max8997); + + if (max8997->irq) + free_irq(max8997->irq, max8997); +} diff --git a/include/linux/mfd/max8997-private.h b/include/linux/mfd/max8997-private.h index 93a9477e075f..69d1010e2e51 100644 --- a/include/linux/mfd/max8997-private.h +++ b/include/linux/mfd/max8997-private.h @@ -24,6 +24,8 @@ #include <linux/i2c.h> +#define MAX8997_REG_INVALID (0xff) + enum max8997_pmic_reg { MAX8997_REG_PMIC_ID0 = 0x00, MAX8997_REG_PMIC_ID1 = 0x01, @@ -313,6 +315,7 @@ enum max8997_irq { #define MAX8997_REG_BUCK2DVS(x) (MAX8997_REG_BUCK2DVS1 + (x) - 1) #define MAX8997_REG_BUCK5DVS(x) (MAX8997_REG_BUCK5DVS1 + (x) - 1) +#define MAX8997_NUM_GPIO 12 struct max8997_dev { struct device *dev; struct i2c_client *i2c; /* 0xcc / PMIC, Battery Control, and FLASH */ @@ -324,11 +327,19 @@ struct max8997_dev { int type; struct platform_device *battery; /* battery control (not fuel gauge) */ + int irq; + int ono; + int irq_base; bool wakeup; + struct mutex irqlock; + int irq_masks_cur[MAX8997_IRQ_GROUP_NR]; + int irq_masks_cache[MAX8997_IRQ_GROUP_NR]; /* For hibernation */ u8 reg_dump[MAX8997_REG_PMIC_END + MAX8997_MUIC_REG_END + MAX8997_HAPTIC_REG_END]; + + bool gpio_status[MAX8997_NUM_GPIO]; }; enum max8997_types { @@ -336,6 +347,10 @@ enum max8997_types { TYPE_MAX8966, }; +extern int max8997_irq_init(struct max8997_dev *max8997); +extern void max8997_irq_exit(struct max8997_dev *max8997); +extern int max8997_irq_resume(struct max8997_dev *max8997); + extern int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest); extern int max8997_bulk_read(struct i2c_client *i2c, u8 reg, int count, u8 *buf); @@ -344,4 +359,10 @@ extern int max8997_bulk_write(struct i2c_client *i2c, u8 reg, int count, u8 *buf); extern int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask); +#define MAX8997_GPIO_INT_BOTH (0x3 << 4) +#define MAX8997_GPIO_INT_RISE (0x2 << 4) +#define MAX8997_GPIO_INT_FALL (0x1 << 4) + +#define MAX8997_GPIO_INT_MASK (0x3 << 4) +#define MAX8997_GPIO_DATA_MASK (0x1 << 2) #endif /* __LINUX_MFD_MAX8997_PRIV_H */ diff --git a/include/linux/mfd/max8997.h b/include/linux/mfd/max8997.h index cb671b3451bf..60931d089422 100644 --- a/include/linux/mfd/max8997.h +++ b/include/linux/mfd/max8997.h @@ -78,8 +78,11 @@ struct max8997_regulator_data { }; struct max8997_platform_data { - bool wakeup; - /* IRQ: Not implemented */ + /* IRQ */ + int irq_base; + int ono; + int wakeup; + /* ---- PMIC ---- */ struct max8997_regulator_data *regulators; int num_regulators; -- cgit v1.2.3 From 8537548645231424b457dd277900054c59096920 Mon Sep 17 00:00:00 2001 From: Axel Lin <axel.lin@gmail.com> Date: Thu, 24 Mar 2011 15:04:53 +0800 Subject: mfd: Add MODULE_DEVICE_TABLE to rdc321x-southbridge The device table is required to load modules based on modaliases. After adding MODULE_DEVICE_TABLE, below entry will be added to modules.pcimap: rdc321x-southbridge 0x000017f3 0x00006030 0xffffffff 0xffffffff 0x00000000 0x00000000 0x0 Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/rdc321x-southbridge.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c index 193c940225b5..10dbe6374a89 100644 --- a/drivers/mfd/rdc321x-southbridge.c +++ b/drivers/mfd/rdc321x-southbridge.c @@ -97,6 +97,7 @@ static DEFINE_PCI_DEVICE_TABLE(rdc321x_sb_table) = { { PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) }, {} }; +MODULE_DEVICE_TABLE(pci, rdc321x_sb_table); static struct pci_driver rdc321x_sb_driver = { .name = "RDC321x Southbridge", -- cgit v1.2.3 From fc498fa29c725a0f0fc5ed359db0e3ed33f4ed52 Mon Sep 17 00:00:00 2001 From: Guenter Roeck <guenter.roeck@ericsson.com> Date: Thu, 24 Mar 2011 12:12:47 -0700 Subject: mfd: Select MFD_CORE if TPS6105X driver is configured The TPS61050/61052 driver uses MFD core code, yet does not specify the dependency in Kconfig. If it is the only MFD driver configured, compilation fails with ERROR: "mfd_add_devices" [drivers/mfd/tps6105x.ko] undefined! ERROR: "mfd_remove_devices" [drivers/mfd/tps6105x.ko] undefined! Fix the problem by adding "select MFD_CORE" to the respective Kconfig entry. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index a9a1af49281e..e986f91fff9c 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -133,6 +133,7 @@ config TPS6105X tristate "TPS61050/61052 Boost Converters" depends on I2C select REGULATOR + select MFD_CORE select REGULATOR_FIXED_VOLTAGE help This option enables a driver for the TP61050/TPS61052 -- cgit v1.2.3 From 52a7d60775aa447b3a3dc685b7006f7cdc7835dd Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:26 +0000 Subject: mfd: asic3: Cleanup irq handling Remove the open coded access to irq_desc and use the proper wrappers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/asic3.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index 0241f08fc00d..652bde5a5adc 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -139,13 +139,12 @@ static void asic3_irq_flip_edge(struct asic3 *asic, static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc) { + struct asic3 *asic = irq_desc_get_handler_data(desc); + struct irq_data *data = irq_desc_get_irq_data(desc); int iter, i; unsigned long flags; - struct asic3 *asic; - - desc->irq_data.chip->irq_ack(&desc->irq_data); - asic = get_irq_data(irq); + data->chip->irq_ack(irq_data); for (iter = 0 ; iter < MAX_ASIC_ISR_LOOPS; iter++) { u32 status; @@ -188,8 +187,7 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc) irqnr = asic->irq_base + (ASIC3_GPIOS_PER_BANK * bank) + i; - desc = irq_to_desc(irqnr); - desc->handle_irq(irqnr, desc); + generic_handle_irq(irqnr); if (asic->irq_bothedge[bank] & bit) asic3_irq_flip_edge(asic, base, bit); @@ -200,11 +198,8 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc) /* Handle remaining IRQs in the status register */ for (i = ASIC3_NUM_GPIOS; i < ASIC3_NR_IRQS; i++) { /* They start at bit 4 and go up */ - if (status & (1 << (i - ASIC3_NUM_GPIOS + 4))) { - desc = irq_to_desc(asic->irq_base + i); - desc->handle_irq(asic->irq_base + i, - desc); - } + if (status & (1 << (i - ASIC3_NUM_GPIOS + 4))) + generic_handle_irq(asic->irq_base + i); } } -- cgit v1.2.3 From 256d0e2e4553417466ca8213b446954ff1778c2c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:27 +0000 Subject: mfd: 88pm860x: Remove unused irq_desc leftovers Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/88pm860x-core.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c index 9c511c1604a5..e13e9f0f6d70 100644 --- a/drivers/mfd/88pm860x-core.c +++ b/drivers/mfd/88pm860x-core.c @@ -416,7 +416,6 @@ static int __devinit device_irq_init(struct pm860x_chip *chip, : chip->companion; unsigned char status_buf[INT_STATUS_NUM]; unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; - struct irq_desc *desc; int i, data, mask, ret = -EINVAL; int __irq; @@ -468,8 +467,6 @@ static int __devinit device_irq_init(struct pm860x_chip *chip, if (!chip->core_irq) goto out; - desc = irq_to_desc(chip->core_irq); - /* register IRQ by genirq */ for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { __irq = i + chip->irq_base; -- cgit v1.2.3 From 73a6839fdb7f3f5ac7bfaee0796dd7647b9c9376 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:27 +0000 Subject: mfd: ezx-pcap: Remvove open coded irq handling There is no point in checking irq_desc here, as it _is_ available. The driver configured those lines, so they cannot go away. The home brewn disabled/note_interrupt magic can be removed as well by adding a irq_disable callback which avoids the lazy disable. That driver needs to be converted to threaded interrupts. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/ezx-pcap.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c index 9e2d8dd5f9e5..92e6fbc43a14 100644 --- a/drivers/mfd/ezx-pcap.c +++ b/drivers/mfd/ezx-pcap.c @@ -162,6 +162,7 @@ static void pcap_unmask_irq(struct irq_data *d) static struct irq_chip pcap_irq_chip = { .name = "pcap", + .irq_disable = pcap_mask_irq, .irq_mask = pcap_mask_irq, .irq_unmask = pcap_unmask_irq, }; @@ -196,17 +197,8 @@ static void pcap_isr_work(struct work_struct *work) local_irq_disable(); service = isr & ~msr; for (irq = pcap->irq_base; service; service >>= 1, irq++) { - if (service & 1) { - struct irq_desc *desc = irq_to_desc(irq); - - if (WARN(!desc, "Invalid PCAP IRQ %d\n", irq)) - break; - - if (desc->status & IRQ_DISABLED) - note_interrupt(irq, desc, IRQ_NONE); - else - desc->handle_irq(irq, desc); - } + if (service & 1) + generic_handle_irq(irq); } local_irq_enable(); ezx_pcap_write(pcap, PCAP_REG_MSR, pcap->msr); -- cgit v1.2.3 From 77eda96691f5e39973f2f2667a28e57e852f559d Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:28 +0000 Subject: mfd: htc-egpio: Cleanup interrupt handling Replace the open coded handler call with the prober accessor. Retrieve the handler data from desc. That avoids a redundant lookup in the sparse irq case. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/htc-egpio.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c index d00b6d1a69e5..0ca68860c0d0 100644 --- a/drivers/mfd/htc-egpio.c +++ b/drivers/mfd/htc-egpio.c @@ -100,7 +100,7 @@ static struct irq_chip egpio_muxed_chip = { static void egpio_handler(unsigned int irq, struct irq_desc *desc) { - struct egpio_info *ei = get_irq_data(irq); + struct egpio_info *ei = irq_desc_get_handler_data(desc); int irqpin; /* Read current pins. */ @@ -113,9 +113,7 @@ static void egpio_handler(unsigned int irq, struct irq_desc *desc) for_each_set_bit(irqpin, &readval, ei->nirqs) { /* Run irq handler */ pr_debug("got IRQ %d\n", irqpin); - irq = ei->irq_start + irqpin; - desc = irq_to_desc(irq); - desc->handle_irq(irq, desc); + generic_handle_irq(ei->irq_start + irqpin); } } -- cgit v1.2.3 From 9eaee99e5a9cedcc4acb3b5507c0878352222bce Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:29 +0000 Subject: mfd: htc-i2cpld: Cleanup interrupt handling Remove the pointless irq_desc check in set_type. This function is called with that irq descriptor locked. Also remove the write back of the flow type as the core code does this already when the return value is 0. Also store the flow type in the chip data structure, so there is no need to fiddle in the irq descriptor. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/htc-i2cpld.c | 25 +++++++------------------ 1 file changed, 7 insertions(+), 18 deletions(-) diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c index 296ad1562f69..b3aa82339993 100644 --- a/drivers/mfd/htc-i2cpld.c +++ b/drivers/mfd/htc-i2cpld.c @@ -58,6 +58,7 @@ struct htcpld_chip { uint irq_start; int nirqs; + unsigned int flow_type; /* * Work structure to allow for setting values outside of any * possible interrupt context @@ -97,12 +98,7 @@ static void htcpld_unmask(struct irq_data *data) static int htcpld_set_type(struct irq_data *data, unsigned int flags) { - struct irq_desc *d = irq_to_desc(data->irq); - - if (!d) { - pr_err("HTCPLD invalid IRQ: %d\n", data->irq); - return -EINVAL; - } + struct htcpld_chip *chip = irq_data_get_irq_chip_data(data); if (flags & ~IRQ_TYPE_SENSE_MASK) return -EINVAL; @@ -111,9 +107,7 @@ static int htcpld_set_type(struct irq_data *data, unsigned int flags) if (flags & (IRQ_TYPE_LEVEL_LOW|IRQ_TYPE_LEVEL_HIGH)) return -EINVAL; - d->status &= ~IRQ_TYPE_SENSE_MASK; - d->status |= flags; - + chip->flow_type = flags; return 0; } @@ -135,7 +129,6 @@ static irqreturn_t htcpld_handler(int irq, void *dev) unsigned int i; unsigned long flags; int irqpin; - struct irq_desc *desc; if (!htcpld) { pr_debug("htcpld is null in ISR\n"); @@ -195,23 +188,19 @@ static irqreturn_t htcpld_handler(int irq, void *dev) * associated interrupts. */ for (irqpin = 0; irqpin < chip->nirqs; irqpin++) { - unsigned oldb, newb; - int flags; + unsigned oldb, newb, type = chip->flow_type; irq = chip->irq_start + irqpin; - desc = irq_to_desc(irq); - flags = desc->status; /* Run the IRQ handler, but only if the bit value * changed, and the proper flags are set */ oldb = (old_val >> irqpin) & 1; newb = (uval >> irqpin) & 1; - if ((!oldb && newb && (flags & IRQ_TYPE_EDGE_RISING)) || - (oldb && !newb && - (flags & IRQ_TYPE_EDGE_FALLING))) { + if ((!oldb && newb && (type & IRQ_TYPE_EDGE_RISING)) || + (oldb && !newb && (type & IRQ_TYPE_EDGE_FALLING))) { pr_debug("fire IRQ %d\n", irqpin); - desc->handle_irq(irq, desc); + generic_handle_irq(irq); } } } -- cgit v1.2.3 From 9d8fd10aa5843e018d456644fc1a58896d8eeaf5 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:30 +0000 Subject: mfd: mx8925: Remove irq_desc leftovers Remove unused code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/max8925-core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c index 0e998dc4e7d8..a92ea9bb83fa 100644 --- a/drivers/mfd/max8925-core.c +++ b/drivers/mfd/max8925-core.c @@ -517,7 +517,6 @@ static int max8925_irq_init(struct max8925_chip *chip, int irq, struct max8925_platform_data *pdata) { unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; - struct irq_desc *desc; int i, ret; int __irq; @@ -544,7 +543,6 @@ static int max8925_irq_init(struct max8925_chip *chip, int irq, mutex_init(&chip->irq_lock); chip->core_irq = irq; chip->irq_base = pdata->irq_base; - desc = irq_to_desc(chip->core_irq); /* register with genirq */ for (i = 0; i < ARRAY_SIZE(max8925_irqs); i++) { -- cgit v1.2.3 From d740f4523bb4aea24bece704c726c69094e20d00 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:31 +0000 Subject: mfd: twl4030: Cleanup interrupt handling irq_desc checking in a function which is called with that irq descriptor locked, is pointless. Equally pointless as the irq desc check in the interrupt service routine. The driver sets those lines up, so that cant go away magically. Remove the open coded handler magic and use the proper accessor. No need to fiddle with irq_desc in the type setting function. The original value is in irq_data and the core code stores the new setting when the return value is 0. This driver needs to be converted to threaded interrupts and buslock. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/twl4030-irq.c | 46 ++++++++-------------------------------------- 1 file changed, 8 insertions(+), 38 deletions(-) diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index 63a30e88908f..47e8de0f3366 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -320,24 +320,8 @@ static int twl4030_irq_thread(void *data) for (module_irq = twl4030_irq_base; pih_isr; pih_isr >>= 1, module_irq++) { - if (pih_isr & 0x1) { - struct irq_desc *d = irq_to_desc(module_irq); - - if (!d) { - pr_err("twl4030: Invalid SIH IRQ: %d\n", - module_irq); - return -EINVAL; - } - - /* These can't be masked ... always warn - * if we get any surprises. - */ - if (d->status & IRQ_DISABLED) - note_interrupt(module_irq, d, - IRQ_NONE); - else - d->handle_irq(module_irq, d); - } + if (pih_isr & 0x1) + generic_handle_irq(module_irq); } local_irq_enable(); @@ -560,24 +544,18 @@ static void twl4030_sih_do_edge(struct work_struct *work) /* Modify only the bits we know must change */ while (edge_change) { int i = fls(edge_change) - 1; - struct irq_desc *d = irq_to_desc(i + agent->irq_base); + struct irq_data *idata = irq_get_irq_data(i + agent->irq_base); int byte = 1 + (i >> 2); int off = (i & 0x3) * 2; - - if (!d) { - pr_err("twl4030: Invalid IRQ: %d\n", - i + agent->irq_base); - return; - } + unsigned int type; bytes[byte] &= ~(0x03 << off); - raw_spin_lock_irq(&d->lock); - if (d->status & IRQ_TYPE_EDGE_RISING) + type = irqd_get_trigger_type(idata); + if (type & IRQ_TYPE_EDGE_RISING) bytes[byte] |= BIT(off + 1); - if (d->status & IRQ_TYPE_EDGE_FALLING) + if (type & IRQ_TYPE_EDGE_FALLING) bytes[byte] |= BIT(off + 0); - raw_spin_unlock_irq(&d->lock); edge_change &= ~BIT(i); } @@ -626,21 +604,13 @@ static void twl4030_sih_unmask(struct irq_data *data) static int twl4030_sih_set_type(struct irq_data *data, unsigned trigger) { struct sih_agent *sih = irq_data_get_irq_chip_data(data); - struct irq_desc *desc = irq_to_desc(data->irq); unsigned long flags; - if (!desc) { - pr_err("twl4030: Invalid IRQ: %d\n", data->irq); - return -EINVAL; - } - if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)) return -EINVAL; spin_lock_irqsave(&sih_agent_lock, flags); - if ((desc->status & IRQ_TYPE_SENSE_MASK) != trigger) { - desc->status &= ~IRQ_TYPE_SENSE_MASK; - desc->status |= trigger; + if (irqd_get_trigger_type(data) != trigger) { sih->edge_change |= BIT(data->irq - sih->irq_base); queue_work(wq, &sih->edge_work); } -- cgit v1.2.3 From c22435a307e00b8ae947b79a8c0d94ab0bef404c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:31 +0000 Subject: mfd: twl6030: Cleanup interrupt handling irq_desc checking in the interrupt demux routine is totally pointless. The driver sets those lines up, so that cant go away magically. Remove the open coded handler magic and use the proper accessor. This driver needs to be converted to threaded interrupts and buslock. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/twl6030-irq.c | 17 +---------------- 1 file changed, 1 insertion(+), 16 deletions(-) diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c index 4082ed73613f..3b9c7756cb6d 100644 --- a/drivers/mfd/twl6030-irq.c +++ b/drivers/mfd/twl6030-irq.c @@ -140,22 +140,7 @@ static int twl6030_irq_thread(void *data) if (sts.int_sts & 0x1) { int module_irq = twl6030_irq_base + twl6030_interrupt_mapping[i]; - struct irq_desc *d = irq_to_desc(module_irq); - - if (!d) { - pr_err("twl6030: Invalid SIH IRQ: %d\n", - module_irq); - return -EINVAL; - } - - /* These can't be masked ... always warn - * if we get any surprises. - */ - if (d->status & IRQ_DISABLED) - note_interrupt(module_irq, d, - IRQ_NONE); - else - d->handle_irq(module_irq, d); + generic_handle_irq(module_irq); } local_irq_enable(); -- cgit v1.2.3 From d5bb122165981aed327845c32a9916d1b8ae0e4b Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:32 +0000 Subject: mfd: Cleanup irq namespace Converted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/88pm860x-core.c | 8 ++++---- drivers/mfd/ab3550-core.c | 12 ++++++------ drivers/mfd/ab8500-core.c | 12 ++++++------ drivers/mfd/asic3.c | 22 +++++++++++----------- drivers/mfd/ezx-pcap.c | 20 ++++++++++---------- drivers/mfd/htc-egpio.c | 18 +++++++++--------- drivers/mfd/htc-i2cpld.c | 8 ++++---- drivers/mfd/jz4740-adc.c | 16 ++++++++-------- drivers/mfd/max8925-core.c | 8 ++++---- drivers/mfd/max8998-irq.c | 8 ++++---- drivers/mfd/max8998.c | 4 ++-- drivers/mfd/stmpe.c | 12 ++++++------ drivers/mfd/t7l66xb.c | 22 +++++++++++----------- drivers/mfd/tc3589x.c | 12 ++++++------ drivers/mfd/tc6393xb.c | 22 +++++++++++----------- drivers/mfd/tps6586x.c | 6 +++--- drivers/mfd/twl4030-irq.c | 20 ++++++++++---------- drivers/mfd/twl6030-irq.c | 8 ++++---- drivers/mfd/wm831x-irq.c | 8 ++++---- drivers/mfd/wm8350-irq.c | 8 ++++---- drivers/mfd/wm8994-irq.c | 8 ++++---- 21 files changed, 131 insertions(+), 131 deletions(-) diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c index e13e9f0f6d70..011cb6ce861b 100644 --- a/drivers/mfd/88pm860x-core.c +++ b/drivers/mfd/88pm860x-core.c @@ -470,14 +470,14 @@ static int __devinit device_irq_init(struct pm860x_chip *chip, /* register IRQ by genirq */ for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { __irq = i + chip->irq_base; - set_irq_chip_data(__irq, chip); - set_irq_chip_and_handler(__irq, &pm860x_irq_chip, + irq_set_chip_data(__irq, chip); + irq_set_chip_and_handler(__irq, &pm860x_irq_chip, handle_edge_irq); - set_irq_nested_thread(__irq, 1); + irq_set_nested_thread(__irq, 1); #ifdef CONFIG_ARM set_irq_flags(__irq, IRQF_VALID); #else - set_irq_noprobe(__irq); + irq_set_noprobe(__irq); #endif } diff --git a/drivers/mfd/ab3550-core.c b/drivers/mfd/ab3550-core.c index c12d04285226..ff86acf3e6bd 100644 --- a/drivers/mfd/ab3550-core.c +++ b/drivers/mfd/ab3550-core.c @@ -668,7 +668,7 @@ static int ab3550_startup_irq_enabled(struct device *dev, unsigned int irq) struct ab3550_platform_data *plf_data; bool val; - ab = get_irq_chip_data(irq); + ab = irq_get_chip_data(irq); plf_data = ab->i2c_client[0]->dev.platform_data; irq -= plf_data->irq.base; val = ((ab->startup_events[irq / 8] & BIT(irq % 8)) != 0); @@ -1296,14 +1296,14 @@ static int __init ab3550_probe(struct i2c_client *client, unsigned int irq; irq = ab3550_plf_data->irq.base + i; - set_irq_chip_data(irq, ab); - set_irq_chip_and_handler(irq, &ab3550_irq_chip, - handle_simple_irq); - set_irq_nested_thread(irq, 1); + irq_set_chip_data(irq, ab); + irq_set_chip_and_handler(irq, &ab3550_irq_chip, + handle_simple_irq); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 6e185b272d00..62e33e2258d4 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -334,14 +334,14 @@ static int ab8500_irq_init(struct ab8500 *ab8500) int irq; for (irq = base; irq < base + AB8500_NR_IRQS; irq++) { - set_irq_chip_data(irq, ab8500); - set_irq_chip_and_handler(irq, &ab8500_irq_chip, + irq_set_chip_data(irq, ab8500); + irq_set_chip_and_handler(irq, &ab8500_irq_chip, handle_simple_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -357,8 +357,8 @@ static void ab8500_irq_remove(struct ab8500 *ab8500) #ifdef CONFIG_ARM set_irq_flags(irq, 0); #endif - set_irq_chip_and_handler(irq, NULL, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); + irq_set_chip_data(irq, NULL); } } diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index 652bde5a5adc..22b5a78bbfdb 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -388,21 +388,21 @@ static int __init asic3_irq_probe(struct platform_device *pdev) for (irq = irq_base; irq < irq_base + ASIC3_NR_IRQS; irq++) { if (irq < asic->irq_base + ASIC3_NUM_GPIOS) - set_irq_chip(irq, &asic3_gpio_irq_chip); + irq_set_chip(irq, &asic3_gpio_irq_chip); else - set_irq_chip(irq, &asic3_irq_chip); + irq_set_chip(irq, &asic3_irq_chip); - set_irq_chip_data(irq, asic); - set_irq_handler(irq, handle_level_irq); + irq_set_chip_data(irq, asic); + irq_set_handler(irq, handle_level_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } asic3_write_register(asic, ASIC3_OFFSET(INTR, INT_MASK), ASIC3_INTMASK_GINTMASK); - set_irq_chained_handler(asic->irq_nr, asic3_irq_demux); - set_irq_type(asic->irq_nr, IRQ_TYPE_EDGE_RISING); - set_irq_data(asic->irq_nr, asic); + irq_set_chained_handler(asic->irq_nr, asic3_irq_demux); + irq_set_irq_type(asic->irq_nr, IRQ_TYPE_EDGE_RISING); + irq_set_handler_data(asic->irq_nr, asic); return 0; } @@ -416,11 +416,11 @@ static void asic3_irq_remove(struct platform_device *pdev) for (irq = irq_base; irq < irq_base + ASIC3_NR_IRQS; irq++) { set_irq_flags(irq, 0); - set_irq_handler(irq, NULL); - set_irq_chip(irq, NULL); - set_irq_chip_data(irq, NULL); + irq_set_handler(irq, NULL); + irq_set_chip(irq, NULL); + irq_set_chip_data(irq, NULL); } - set_irq_chained_handler(asic->irq_nr, NULL); + irq_set_chained_handler(asic->irq_nr, NULL); } /* GPIOs */ diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c index 92e6fbc43a14..f2f4029e21a0 100644 --- a/drivers/mfd/ezx-pcap.c +++ b/drivers/mfd/ezx-pcap.c @@ -207,7 +207,7 @@ static void pcap_isr_work(struct work_struct *work) static void pcap_irq_handler(unsigned int irq, struct irq_desc *desc) { - struct pcap_chip *pcap = get_irq_data(irq); + struct pcap_chip *pcap = irq_get_handler_data(irq); desc->irq_data.chip->irq_ack(&desc->irq_data); queue_work(pcap->workqueue, &pcap->isr_work); @@ -411,7 +411,7 @@ static int __devexit ezx_pcap_remove(struct spi_device *spi) /* cleanup irqchip */ for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++) - set_irq_chip_and_handler(i, NULL, NULL); + irq_set_chip_and_handler(i, NULL, NULL); destroy_workqueue(pcap->workqueue); @@ -468,12 +468,12 @@ static int __devinit ezx_pcap_probe(struct spi_device *spi) /* setup irq chip */ for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++) { - set_irq_chip_and_handler(i, &pcap_irq_chip, handle_simple_irq); - set_irq_chip_data(i, pcap); + irq_set_chip_and_handler(i, &pcap_irq_chip, handle_simple_irq); + irq_set_chip_data(i, pcap); #ifdef CONFIG_ARM set_irq_flags(i, IRQF_VALID); #else - set_irq_noprobe(i); + irq_set_noprobe(i); #endif } @@ -482,10 +482,10 @@ static int __devinit ezx_pcap_probe(struct spi_device *spi) ezx_pcap_write(pcap, PCAP_REG_ISR, PCAP_CLEAR_INTERRUPT_REGISTER); pcap->msr = PCAP_MASK_ALL_INTERRUPT; - set_irq_type(spi->irq, IRQ_TYPE_EDGE_RISING); - set_irq_data(spi->irq, pcap); - set_irq_chained_handler(spi->irq, pcap_irq_handler); - set_irq_wake(spi->irq, 1); + irq_set_irq_type(spi->irq, IRQ_TYPE_EDGE_RISING); + irq_set_handler_data(spi->irq, pcap); + irq_set_chained_handler(spi->irq, pcap_irq_handler); + irq_set_irq_wake(spi->irq, 1); /* ADC */ adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ? @@ -514,7 +514,7 @@ remove_subdevs: free_irq(adc_irq, pcap); free_irqchip: for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++) - set_irq_chip_and_handler(i, NULL, NULL); + irq_set_chip_and_handler(i, NULL, NULL); /* destroy_workqueue: */ destroy_workqueue(pcap->workqueue); free_pcap: diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c index 0ca68860c0d0..fcd89e604ab1 100644 --- a/drivers/mfd/htc-egpio.c +++ b/drivers/mfd/htc-egpio.c @@ -344,14 +344,14 @@ static int __init egpio_probe(struct platform_device *pdev) ei->ack_write = 0; irq_end = ei->irq_start + ei->nirqs; for (irq = ei->irq_start; irq < irq_end; irq++) { - set_irq_chip(irq, &egpio_muxed_chip); - set_irq_chip_data(irq, ei); - set_irq_handler(irq, handle_simple_irq); + irq_set_chip(irq, &egpio_muxed_chip); + irq_set_chip_data(irq, ei); + irq_set_handler(irq, handle_simple_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } - set_irq_type(ei->chained_irq, IRQ_TYPE_EDGE_RISING); - set_irq_data(ei->chained_irq, ei); - set_irq_chained_handler(ei->chained_irq, egpio_handler); + irq_set_irq_type(ei->chained_irq, IRQ_TYPE_EDGE_RISING); + irq_set_handler_data(ei->chained_irq, ei); + irq_set_chained_handler(ei->chained_irq, egpio_handler); ack_irqs(ei); device_init_wakeup(&pdev->dev, 1); @@ -373,11 +373,11 @@ static int __exit egpio_remove(struct platform_device *pdev) if (ei->chained_irq) { irq_end = ei->irq_start + ei->nirqs; for (irq = ei->irq_start; irq < irq_end; irq++) { - set_irq_chip(irq, NULL); - set_irq_handler(irq, NULL); + irq_set_chip(irq, NULL); + irq_set_handler(irq, NULL); set_irq_flags(irq, 0); } - set_irq_chained_handler(ei->chained_irq, NULL); + irq_set_chained_handler(ei->chained_irq, NULL); device_init_wakeup(&pdev->dev, 0); } iounmap(ei->base_addr); diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c index b3aa82339993..9ba2a2a15dcb 100644 --- a/drivers/mfd/htc-i2cpld.c +++ b/drivers/mfd/htc-i2cpld.c @@ -348,13 +348,13 @@ static int __devinit htcpld_setup_chip_irq( /* Setup irq handlers */ irq_end = chip->irq_start + chip->nirqs; for (irq = chip->irq_start; irq < irq_end; irq++) { - set_irq_chip(irq, &htcpld_muxed_chip); - set_irq_chip_data(irq, chip); - set_irq_handler(irq, handle_simple_irq); + irq_set_chip(irq, &htcpld_muxed_chip); + irq_set_chip_data(irq, chip); + irq_set_handler(irq, handle_simple_irq); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); #else - set_irq_probe(irq); + irq_set_probe(irq); #endif } diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c index aa518b9beaf5..a0bd0cf05af3 100644 --- a/drivers/mfd/jz4740-adc.c +++ b/drivers/mfd/jz4740-adc.c @@ -112,7 +112,7 @@ static struct irq_chip jz4740_adc_irq_chip = { static void jz4740_adc_irq_demux(unsigned int irq, struct irq_desc *desc) { - struct jz4740_adc *adc = get_irq_desc_data(desc); + struct jz4740_adc *adc = irq_desc_get_handler_data(desc); uint8_t status; unsigned int i; @@ -310,13 +310,13 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, adc); for (irq = adc->irq_base; irq < adc->irq_base + 5; ++irq) { - set_irq_chip_data(irq, adc); - set_irq_chip_and_handler(irq, &jz4740_adc_irq_chip, - handle_level_irq); + irq_set_chip_data(irq, adc); + irq_set_chip_and_handler(irq, &jz4740_adc_irq_chip, + handle_level_irq); } - set_irq_data(adc->irq, adc); - set_irq_chained_handler(adc->irq, jz4740_adc_irq_demux); + irq_set_handler_data(adc->irq, adc); + irq_set_chained_handler(adc->irq, jz4740_adc_irq_demux); writeb(0x00, adc->base + JZ_REG_ADC_ENABLE); writeb(0xff, adc->base + JZ_REG_ADC_CTRL); @@ -347,8 +347,8 @@ static int __devexit jz4740_adc_remove(struct platform_device *pdev) mfd_remove_devices(&pdev->dev); - set_irq_data(adc->irq, NULL); - set_irq_chained_handler(adc->irq, NULL); + irq_set_handler_data(adc->irq, NULL); + irq_set_chained_handler(adc->irq, NULL); iounmap(adc->base); release_mem_region(adc->mem->start, resource_size(adc->mem)); diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c index a92ea9bb83fa..58cc5fdde016 100644 --- a/drivers/mfd/max8925-core.c +++ b/drivers/mfd/max8925-core.c @@ -547,14 +547,14 @@ static int max8925_irq_init(struct max8925_chip *chip, int irq, /* register with genirq */ for (i = 0; i < ARRAY_SIZE(max8925_irqs); i++) { __irq = i + chip->irq_base; - set_irq_chip_data(__irq, chip); - set_irq_chip_and_handler(__irq, &max8925_irq_chip, + irq_set_chip_data(__irq, chip); + irq_set_chip_and_handler(__irq, &max8925_irq_chip, handle_edge_irq); - set_irq_nested_thread(__irq, 1); + irq_set_nested_thread(__irq, 1); #ifdef CONFIG_ARM set_irq_flags(__irq, IRQF_VALID); #else - set_irq_noprobe(__irq); + irq_set_noprobe(__irq); #endif } if (!irq) { diff --git a/drivers/mfd/max8998-irq.c b/drivers/mfd/max8998-irq.c index 3903e1fbb334..5919710dc9ed 100644 --- a/drivers/mfd/max8998-irq.c +++ b/drivers/mfd/max8998-irq.c @@ -224,14 +224,14 @@ int max8998_irq_init(struct max8998_dev *max8998) /* register with genirq */ for (i = 0; i < MAX8998_IRQ_NR; i++) { cur_irq = i + max8998->irq_base; - set_irq_chip_data(cur_irq, max8998); - set_irq_chip_and_handler(cur_irq, &max8998_irq_chip, + irq_set_chip_data(cur_irq, max8998); + irq_set_chip_and_handler(cur_irq, &max8998_irq_chip, handle_edge_irq); - set_irq_nested_thread(cur_irq, 1); + irq_set_nested_thread(cur_irq, 1); #ifdef CONFIG_ARM set_irq_flags(cur_irq, IRQF_VALID); #else - set_irq_noprobe(cur_irq); + irq_set_noprobe(cur_irq); #endif } diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c index c00214257da2..9ec7570f5b81 100644 --- a/drivers/mfd/max8998.c +++ b/drivers/mfd/max8998.c @@ -209,7 +209,7 @@ static int max8998_suspend(struct device *dev) struct max8998_dev *max8998 = i2c_get_clientdata(i2c); if (max8998->wakeup) - set_irq_wake(max8998->irq, 1); + irq_set_irq_wake(max8998->irq, 1); return 0; } @@ -219,7 +219,7 @@ static int max8998_resume(struct device *dev) struct max8998_dev *max8998 = i2c_get_clientdata(i2c); if (max8998->wakeup) - set_irq_wake(max8998->irq, 0); + irq_set_irq_wake(max8998->irq, 0); /* * In LP3974, if IRQ registers are not "read & clear" * when it's set during sleep, the interrupt becomes diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index 3e5732b58c49..7ab7746631d4 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -762,14 +762,14 @@ static int __devinit stmpe_irq_init(struct stmpe *stmpe) int irq; for (irq = base; irq < base + num_irqs; irq++) { - set_irq_chip_data(irq, stmpe); - set_irq_chip_and_handler(irq, &stmpe_irq_chip, + irq_set_chip_data(irq, stmpe); + irq_set_chip_and_handler(irq, &stmpe_irq_chip, handle_edge_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -786,8 +786,8 @@ static void stmpe_irq_remove(struct stmpe *stmpe) #ifdef CONFIG_ARM set_irq_flags(irq, 0); #endif - set_irq_chip_and_handler(irq, NULL, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); + irq_set_chip_data(irq, NULL); } } diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c index af57fc706a4c..2e1fca4715ed 100644 --- a/drivers/mfd/t7l66xb.c +++ b/drivers/mfd/t7l66xb.c @@ -186,7 +186,7 @@ static struct mfd_cell t7l66xb_cells[] = { /* Handle the T7L66XB interrupt mux */ static void t7l66xb_irq(unsigned int irq, struct irq_desc *desc) { - struct t7l66xb *t7l66xb = get_irq_data(irq); + struct t7l66xb *t7l66xb = irq_get_handler_data(irq); unsigned int isr; unsigned int i, irq_base; @@ -243,17 +243,17 @@ static void t7l66xb_attach_irq(struct platform_device *dev) irq_base = t7l66xb->irq_base; for (irq = irq_base; irq < irq_base + T7L66XB_NR_IRQS; irq++) { - set_irq_chip(irq, &t7l66xb_chip); - set_irq_chip_data(irq, t7l66xb); - set_irq_handler(irq, handle_level_irq); + irq_set_chip(irq, &t7l66xb_chip); + irq_set_chip_data(irq, t7l66xb); + irq_set_handler(irq, handle_level_irq); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); #endif } - set_irq_type(t7l66xb->irq, IRQ_TYPE_EDGE_FALLING); - set_irq_data(t7l66xb->irq, t7l66xb); - set_irq_chained_handler(t7l66xb->irq, t7l66xb_irq); + irq_set_irq_type(t7l66xb->irq, IRQ_TYPE_EDGE_FALLING); + irq_set_handler_data(t7l66xb->irq, t7l66xb); + irq_set_chained_handler(t7l66xb->irq, t7l66xb_irq); } static void t7l66xb_detach_irq(struct platform_device *dev) @@ -263,15 +263,15 @@ static void t7l66xb_detach_irq(struct platform_device *dev) irq_base = t7l66xb->irq_base; - set_irq_chained_handler(t7l66xb->irq, NULL); - set_irq_data(t7l66xb->irq, NULL); + irq_set_chained_handler(t7l66xb->irq, NULL); + irq_set_handler_data(t7l66xb->irq, NULL); for (irq = irq_base; irq < irq_base + T7L66XB_NR_IRQS; irq++) { #ifdef CONFIG_ARM set_irq_flags(irq, 0); #endif - set_irq_chip(irq, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip(irq, NULL); + irq_set_chip_data(irq, NULL); } } diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c index 729dbeed2ce0..c27e515b0722 100644 --- a/drivers/mfd/tc3589x.c +++ b/drivers/mfd/tc3589x.c @@ -192,14 +192,14 @@ static int tc3589x_irq_init(struct tc3589x *tc3589x) int irq; for (irq = base; irq < base + TC3589x_NR_INTERNAL_IRQS; irq++) { - set_irq_chip_data(irq, tc3589x); - set_irq_chip_and_handler(irq, &dummy_irq_chip, + irq_set_chip_data(irq, tc3589x); + irq_set_chip_and_handler(irq, &dummy_irq_chip, handle_edge_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -215,8 +215,8 @@ static void tc3589x_irq_remove(struct tc3589x *tc3589x) #ifdef CONFIG_ARM set_irq_flags(irq, 0); #endif - set_irq_chip_and_handler(irq, NULL, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); + irq_set_chip_data(irq, NULL); } } diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c index 3d62ded86a8f..06112c8628bf 100644 --- a/drivers/mfd/tc6393xb.c +++ b/drivers/mfd/tc6393xb.c @@ -513,7 +513,7 @@ static int tc6393xb_register_gpio(struct tc6393xb *tc6393xb, int gpio_base) static void tc6393xb_irq(unsigned int irq, struct irq_desc *desc) { - struct tc6393xb *tc6393xb = get_irq_data(irq); + struct tc6393xb *tc6393xb = irq_get_handler_data(irq); unsigned int isr; unsigned int i, irq_base; @@ -572,15 +572,15 @@ static void tc6393xb_attach_irq(struct platform_device *dev) irq_base = tc6393xb->irq_base; for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) { - set_irq_chip(irq, &tc6393xb_chip); - set_irq_chip_data(irq, tc6393xb); - set_irq_handler(irq, handle_edge_irq); + irq_set_chip(irq, &tc6393xb_chip); + irq_set_chip_data(irq, tc6393xb); + irq_set_handler(irq, handle_edge_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } - set_irq_type(tc6393xb->irq, IRQ_TYPE_EDGE_FALLING); - set_irq_data(tc6393xb->irq, tc6393xb); - set_irq_chained_handler(tc6393xb->irq, tc6393xb_irq); + irq_set_irq_type(tc6393xb->irq, IRQ_TYPE_EDGE_FALLING); + irq_set_handler_data(tc6393xb->irq, tc6393xb); + irq_set_chained_handler(tc6393xb->irq, tc6393xb_irq); } static void tc6393xb_detach_irq(struct platform_device *dev) @@ -588,15 +588,15 @@ static void tc6393xb_detach_irq(struct platform_device *dev) struct tc6393xb *tc6393xb = platform_get_drvdata(dev); unsigned int irq, irq_base; - set_irq_chained_handler(tc6393xb->irq, NULL); - set_irq_data(tc6393xb->irq, NULL); + irq_set_chained_handler(tc6393xb->irq, NULL); + irq_set_handler_data(tc6393xb->irq, NULL); irq_base = tc6393xb->irq_base; for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) { set_irq_flags(irq, 0); - set_irq_chip(irq, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip(irq, NULL); + irq_set_chip_data(irq, NULL); } } diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index 0aa9186aec19..b600808690c1 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -422,10 +422,10 @@ static int __devinit tps6586x_irq_init(struct tps6586x *tps6586x, int irq, for (i = 0; i < ARRAY_SIZE(tps6586x_irqs); i++) { int __irq = i + tps6586x->irq_base; - set_irq_chip_data(__irq, tps6586x); - set_irq_chip_and_handler(__irq, &tps6586x->irq_chip, + irq_set_chip_data(__irq, tps6586x); + irq_set_chip_and_handler(__irq, &tps6586x->irq_chip, handle_simple_irq); - set_irq_nested_thread(__irq, 1); + irq_set_nested_thread(__irq, 1); #ifdef CONFIG_ARM set_irq_flags(__irq, IRQF_VALID); #endif diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index 47e8de0f3366..8a7ee3139b86 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -454,7 +454,7 @@ static inline void activate_irq(int irq) set_irq_flags(irq, IRQF_VALID); #else /* same effect on other architectures */ - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -650,7 +650,7 @@ static inline int sih_read_isr(const struct sih *sih) */ static void handle_twl4030_sih(unsigned irq, struct irq_desc *desc) { - struct sih_agent *agent = get_irq_data(irq); + struct sih_agent *agent = irq_get_handler_data(irq); const struct sih *sih = agent->sih; int isr; @@ -724,9 +724,9 @@ int twl4030_sih_setup(int module) for (i = 0; i < sih->bits; i++) { irq = irq_base + i; - set_irq_chip_and_handler(irq, &twl4030_sih_irq_chip, - handle_edge_irq); - set_irq_chip_data(irq, agent); + irq_set_chip_and_handler(irq, &twl4030_sih_irq_chip, + handle_edge_irq); + irq_set_chip_data(irq, agent); activate_irq(irq); } @@ -735,8 +735,8 @@ int twl4030_sih_setup(int module) /* replace generic PIH handler (handle_simple_irq) */ irq = sih_mod + twl4030_irq_base; - set_irq_data(irq, agent); - set_irq_chained_handler(irq, handle_twl4030_sih); + irq_set_handler_data(irq, agent); + irq_set_chained_handler(irq, handle_twl4030_sih); pr_info("twl4030: %s (irq %d) chaining IRQs %d..%d\n", sih->name, irq, irq_base, twl4030_irq_next - 1); @@ -785,8 +785,8 @@ int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end) twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack; for (i = irq_base; i < irq_end; i++) { - set_irq_chip_and_handler(i, &twl4030_irq_chip, - handle_simple_irq); + irq_set_chip_and_handler(i, &twl4030_irq_chip, + handle_simple_irq); activate_irq(i); } twl4030_irq_next = i; @@ -826,7 +826,7 @@ fail_rqirq: /* clean up twl4030_sih_setup */ fail: for (i = irq_base; i < irq_end; i++) - set_irq_chip_and_handler(i, NULL, NULL); + irq_set_chip_and_handler(i, NULL, NULL); destroy_workqueue(wq); wq = NULL; return status; diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c index 3b9c7756cb6d..fa937052fbab 100644 --- a/drivers/mfd/twl6030-irq.c +++ b/drivers/mfd/twl6030-irq.c @@ -183,7 +183,7 @@ static inline void activate_irq(int irq) set_irq_flags(irq, IRQF_VALID); #else /* same effect on other architectures */ - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -320,8 +320,8 @@ int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end) twl6030_irq_chip.irq_set_type = NULL; for (i = irq_base; i < irq_end; i++) { - set_irq_chip_and_handler(i, &twl6030_irq_chip, - handle_simple_irq); + irq_set_chip_and_handler(i, &twl6030_irq_chip, + handle_simple_irq); activate_irq(i); } @@ -350,7 +350,7 @@ fail_irq: fail_kthread: for (i = irq_base; i < irq_end; i++) - set_irq_chip_and_handler(i, NULL, NULL); + irq_set_chip_and_handler(i, NULL, NULL); return status; } diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c index a5cd17e18d09..23e66af89dea 100644 --- a/drivers/mfd/wm831x-irq.c +++ b/drivers/mfd/wm831x-irq.c @@ -553,17 +553,17 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq) for (cur_irq = wm831x->irq_base; cur_irq < ARRAY_SIZE(wm831x_irqs) + wm831x->irq_base; cur_irq++) { - set_irq_chip_data(cur_irq, wm831x); - set_irq_chip_and_handler(cur_irq, &wm831x_irq_chip, + irq_set_chip_data(cur_irq, wm831x); + irq_set_chip_and_handler(cur_irq, &wm831x_irq_chip, handle_edge_irq); - set_irq_nested_thread(cur_irq, 1); + irq_set_nested_thread(cur_irq, 1); /* ARM needs us to explicitly flag the IRQ as valid * and will set them noprobe when we do so. */ #ifdef CONFIG_ARM set_irq_flags(cur_irq, IRQF_VALID); #else - set_irq_noprobe(cur_irq); + irq_set_noprobe(cur_irq); #endif } diff --git a/drivers/mfd/wm8350-irq.c b/drivers/mfd/wm8350-irq.c index 5839966ebd85..ed4b22a167b3 100644 --- a/drivers/mfd/wm8350-irq.c +++ b/drivers/mfd/wm8350-irq.c @@ -518,17 +518,17 @@ int wm8350_irq_init(struct wm8350 *wm8350, int irq, for (cur_irq = wm8350->irq_base; cur_irq < ARRAY_SIZE(wm8350_irqs) + wm8350->irq_base; cur_irq++) { - set_irq_chip_data(cur_irq, wm8350); - set_irq_chip_and_handler(cur_irq, &wm8350_irq_chip, + irq_set_chip_data(cur_irq, wm8350); + irq_set_chip_and_handler(cur_irq, &wm8350_irq_chip, handle_edge_irq); - set_irq_nested_thread(cur_irq, 1); + irq_set_nested_thread(cur_irq, 1); /* ARM needs us to explicitly flag the IRQ as valid * and will set them noprobe when we do so. */ #ifdef CONFIG_ARM set_irq_flags(cur_irq, IRQF_VALID); #else - set_irq_noprobe(cur_irq); + irq_set_noprobe(cur_irq); #endif } diff --git a/drivers/mfd/wm8994-irq.c b/drivers/mfd/wm8994-irq.c index 1e3bf4a2ff8e..71c6e8f9aedb 100644 --- a/drivers/mfd/wm8994-irq.c +++ b/drivers/mfd/wm8994-irq.c @@ -278,17 +278,17 @@ int wm8994_irq_init(struct wm8994 *wm8994) for (cur_irq = wm8994->irq_base; cur_irq < ARRAY_SIZE(wm8994_irqs) + wm8994->irq_base; cur_irq++) { - set_irq_chip_data(cur_irq, wm8994); - set_irq_chip_and_handler(cur_irq, &wm8994_irq_chip, + irq_set_chip_data(cur_irq, wm8994); + irq_set_chip_and_handler(cur_irq, &wm8994_irq_chip, handle_edge_irq); - set_irq_nested_thread(cur_irq, 1); + irq_set_nested_thread(cur_irq, 1); /* ARM needs us to explicitly flag the IRQ as valid * and will set them noprobe when we do so. */ #ifdef CONFIG_ARM set_irq_flags(cur_irq, IRQF_VALID); #else - set_irq_noprobe(cur_irq); + irq_set_noprobe(cur_irq); #endif } -- cgit v1.2.3 From d6f7ce9f7fde069424e6400c31717ef34aab7e5f Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx@linutronix.de> Date: Fri, 25 Mar 2011 11:12:35 +0000 Subject: mfd: Fold irq_set_chip/irq_set_handler Use the combined irq_set_chip_and_handler() function instead. Converted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/asic3.c | 3 +-- drivers/mfd/htc-egpio.c | 7 +++---- drivers/mfd/htc-i2cpld.c | 4 ++-- drivers/mfd/t7l66xb.c | 3 +-- drivers/mfd/tc6393xb.c | 3 +-- 5 files changed, 8 insertions(+), 12 deletions(-) diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index 22b5a78bbfdb..d4a851c6b5bf 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -416,8 +416,7 @@ static void asic3_irq_remove(struct platform_device *pdev) for (irq = irq_base; irq < irq_base + ASIC3_NR_IRQS; irq++) { set_irq_flags(irq, 0); - irq_set_handler(irq, NULL); - irq_set_chip(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); irq_set_chip_data(irq, NULL); } irq_set_chained_handler(asic->irq_nr, NULL); diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c index fcd89e604ab1..bbaec0ccba8f 100644 --- a/drivers/mfd/htc-egpio.c +++ b/drivers/mfd/htc-egpio.c @@ -344,9 +344,9 @@ static int __init egpio_probe(struct platform_device *pdev) ei->ack_write = 0; irq_end = ei->irq_start + ei->nirqs; for (irq = ei->irq_start; irq < irq_end; irq++) { - irq_set_chip(irq, &egpio_muxed_chip); + irq_set_chip_and_handler(irq, &egpio_muxed_chip, + handle_simple_irq); irq_set_chip_data(irq, ei); - irq_set_handler(irq, handle_simple_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } irq_set_irq_type(ei->chained_irq, IRQ_TYPE_EDGE_RISING); @@ -373,8 +373,7 @@ static int __exit egpio_remove(struct platform_device *pdev) if (ei->chained_irq) { irq_end = ei->irq_start + ei->nirqs; for (irq = ei->irq_start; irq < irq_end; irq++) { - irq_set_chip(irq, NULL); - irq_set_handler(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); set_irq_flags(irq, 0); } irq_set_chained_handler(ei->chained_irq, NULL); diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c index 9ba2a2a15dcb..d55065cc324c 100644 --- a/drivers/mfd/htc-i2cpld.c +++ b/drivers/mfd/htc-i2cpld.c @@ -348,9 +348,9 @@ static int __devinit htcpld_setup_chip_irq( /* Setup irq handlers */ irq_end = chip->irq_start + chip->nirqs; for (irq = chip->irq_start; irq < irq_end; irq++) { - irq_set_chip(irq, &htcpld_muxed_chip); + irq_set_chip_and_handler(irq, &htcpld_muxed_chip, + handle_simple_irq); irq_set_chip_data(irq, chip); - irq_set_handler(irq, handle_simple_irq); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); #else diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c index 2e1fca4715ed..42830e692964 100644 --- a/drivers/mfd/t7l66xb.c +++ b/drivers/mfd/t7l66xb.c @@ -243,9 +243,8 @@ static void t7l66xb_attach_irq(struct platform_device *dev) irq_base = t7l66xb->irq_base; for (irq = irq_base; irq < irq_base + T7L66XB_NR_IRQS; irq++) { - irq_set_chip(irq, &t7l66xb_chip); + irq_set_chip_and_handler(irq, &t7l66xb_chip, handle_level_irq); irq_set_chip_data(irq, t7l66xb); - irq_set_handler(irq, handle_level_irq); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); #endif diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c index 06112c8628bf..fc53ce287601 100644 --- a/drivers/mfd/tc6393xb.c +++ b/drivers/mfd/tc6393xb.c @@ -572,9 +572,8 @@ static void tc6393xb_attach_irq(struct platform_device *dev) irq_base = tc6393xb->irq_base; for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) { - irq_set_chip(irq, &tc6393xb_chip); + irq_set_chip_and_handler(irq, &tc6393xb_chip, handle_edge_irq); irq_set_chip_data(irq, tc6393xb); - irq_set_handler(irq, handle_edge_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } -- cgit v1.2.3 From 8317d5178e7491589693693e5a7f64442cf46ca2 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz <sameo@linux.intel.com> Date: Fri, 25 Mar 2011 17:56:02 +0100 Subject: mfd: Clean up max8997 IRQ namespace Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> --- drivers/mfd/max8997-irq.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/mfd/max8997-irq.c b/drivers/mfd/max8997-irq.c index e85c874133c4..638bf7e4d3b3 100644 --- a/drivers/mfd/max8997-irq.c +++ b/drivers/mfd/max8997-irq.c @@ -115,14 +115,14 @@ static const struct max8997_irq_data max8997_irqs[] = { static void max8997_irq_lock(struct irq_data *data) { - struct max8997_dev *max8997 = get_irq_chip_data(data->irq); + struct max8997_dev *max8997 = irq_get_chip_data(data->irq); mutex_lock(&max8997->irqlock); } static void max8997_irq_sync_unlock(struct irq_data *data) { - struct max8997_dev *max8997 = get_irq_chip_data(data->irq); + struct max8997_dev *max8997 = irq_get_chip_data(data->irq); int i; for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) { @@ -149,7 +149,7 @@ irq_to_max8997_irq(struct max8997_dev *max8997, int irq) static void max8997_irq_mask(struct irq_data *data) { - struct max8997_dev *max8997 = get_irq_chip_data(data->irq); + struct max8997_dev *max8997 = irq_get_chip_data(data->irq); const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997, data->irq); @@ -158,7 +158,7 @@ static void max8997_irq_mask(struct irq_data *data) static void max8997_irq_unmask(struct irq_data *data) { - struct max8997_dev *max8997 = get_irq_chip_data(data->irq); + struct max8997_dev *max8997 = irq_get_chip_data(data->irq); const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997, data->irq); @@ -332,14 +332,14 @@ int max8997_irq_init(struct max8997_dev *max8997) /* Register with genirq */ for (i = 0; i < MAX8997_IRQ_NR; i++) { cur_irq = i + max8997->irq_base; - set_irq_chip_data(cur_irq, max8997); - set_irq_chip_and_handler(cur_irq, &max8997_irq_chip, + irq_set_chip_data(cur_irq, max8997); + irq_set_chip_and_handler(cur_irq, &max8997_irq_chip, handle_edge_irq); - set_irq_nested_thread(cur_irq, 1); + irq_set_nested_thread(cur_irq, 1); #ifdef CONFIG_ARM set_irq_flags(cur_irq, IRQF_VALID); #else - set_irq_noprobe(cur_irq); + irq_set_noprobe(cur_irq); #endif } -- cgit v1.2.3 From a51b907b2ecdfd3830576733810233f00dcfb2af Mon Sep 17 00:00:00 2001 From: Axel Lin <axel.lin@gmail.com> Date: Sat, 26 Mar 2011 23:28:42 +0800 Subject: regulator: Add MODULE_DEVICE_TABLE to max8997 and max8998 The device table is required to load modules based on modaliases. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: MyungJoo Ham <myungjoo.ham@smasung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> --- drivers/regulator/max8997.c | 1 + drivers/regulator/max8998.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c index 01ef7e9903bb..77e0cfb30b23 100644 --- a/drivers/regulator/max8997.c +++ b/drivers/regulator/max8997.c @@ -1185,6 +1185,7 @@ static const struct platform_device_id max8997_pmic_id[] = { { "max8997-pmic", 0}, { }, }; +MODULE_DEVICE_TABLE(platform, max8997_pmic_id); static struct platform_driver max8997_pmic_driver = { .driver = { diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index 0ec49ca527a8..43410266f993 100644 --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -887,6 +887,7 @@ static const struct platform_device_id max8998_pmic_id[] = { { "lp3974-pmic", TYPE_LP3974 }, { } }; +MODULE_DEVICE_TABLE(platform, max8998_pmic_id); static struct platform_driver max8998_pmic_driver = { .driver = { -- cgit v1.2.3 From 76597cd31470fa130784c78fadb4dab2e624a723 Mon Sep 17 00:00:00 2001 From: Linus Torvalds <torvalds@linux-foundation.org> Date: Sun, 27 Mar 2011 19:09:29 -0700 Subject: proc: fix oops on invalid /proc/<pid>/maps access MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When m_start returns an error, the seq_file logic will still call m_stop with that error entry, so we'd better make sure that we check it before using it as a vma. Introduced by commit ec6fd8a4355c ("report errors in /proc/*/*map* sanely"), which replaced NULL with various ERR_PTR() cases. (On ia64, you happen to get a unaligned fault instead of a page fault, since the address used is generally some random error code like -EPERM) Reported-by: Anca Emanuel <anca.emanuel@gmail.com> Reported-by: Tony Luck <tony.luck@intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Américo Wang <xiyou.wangcong@gmail.com> Cc: Stephen Wilson <wilsons@start.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- fs/proc/task_mmu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 7c708a418acc..2e7addfd9803 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -182,7 +182,8 @@ static void m_stop(struct seq_file *m, void *v) struct proc_maps_private *priv = m->private; struct vm_area_struct *vma = v; - vma_stop(priv, vma); + if (!IS_ERR(vma)) + vma_stop(priv, vma); if (priv->task) put_task_struct(priv->task); } -- cgit v1.2.3 From d7c3f8cee81f4548de0513403b74131aee655576 Mon Sep 17 00:00:00 2001 From: Christoph Lameter <cl@linux.com> Date: Sat, 26 Mar 2011 20:57:18 -0500 Subject: percpu: Omit segment prefix in the UP case for cmpxchg_double Omit the segment prefix in the UP case. GS is not used then and we will generate segfaults if cmpxchg16b is used otherwise. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- arch/x86/include/asm/percpu.h | 10 ++++++---- arch/x86/lib/cmpxchg16b_emu.S | 14 ++++++++++---- 2 files changed, 16 insertions(+), 8 deletions(-) diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index a09e1f052d84..d475b4398d8b 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -45,7 +45,7 @@ #include <linux/stringify.h> #ifdef CONFIG_SMP -#define __percpu_arg(x) "%%"__stringify(__percpu_seg)":%P" #x +#define __percpu_prefix "%%"__stringify(__percpu_seg)":" #define __my_cpu_offset percpu_read(this_cpu_off) /* @@ -62,9 +62,11 @@ (typeof(*(ptr)) __kernel __force *)tcp_ptr__; \ }) #else -#define __percpu_arg(x) "%P" #x +#define __percpu_prefix "" #endif +#define __percpu_arg(x) __percpu_prefix "%P" #x + /* * Initialized pointers to per-cpu variables needed for the boot * processor need to use these macros to get the proper address @@ -516,11 +518,11 @@ do { \ typeof(o2) __n2 = n2; \ typeof(o2) __dummy; \ alternative_io("call this_cpu_cmpxchg16b_emu\n\t" P6_NOP4, \ - "cmpxchg16b %%gs:(%%rsi)\n\tsetz %0\n\t", \ + "cmpxchg16b " __percpu_prefix "(%%rsi)\n\tsetz %0\n\t", \ X86_FEATURE_CX16, \ ASM_OUTPUT2("=a"(__ret), "=d"(__dummy)), \ "S" (&pcp1), "b"(__n1), "c"(__n2), \ - "a"(__o1), "d"(__o2)); \ + "a"(__o1), "d"(__o2) : "memory"); \ __ret; \ }) diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S index 3e8b08a6de2b..1e572c507d06 100644 --- a/arch/x86/lib/cmpxchg16b_emu.S +++ b/arch/x86/lib/cmpxchg16b_emu.S @@ -10,6 +10,12 @@ #include <asm/frame.h> #include <asm/dwarf2.h> +#ifdef CONFIG_SMP +#define SEG_PREFIX %gs: +#else +#define SEG_PREFIX +#endif + .text /* @@ -37,13 +43,13 @@ this_cpu_cmpxchg16b_emu: pushf cli - cmpq %gs:(%rsi), %rax + cmpq SEG_PREFIX(%rsi), %rax jne not_same - cmpq %gs:8(%rsi), %rdx + cmpq SEG_PREFIX 8(%rsi), %rdx jne not_same - movq %rbx, %gs:(%rsi) - movq %rcx, %gs:8(%rsi) + movq %rbx, SEG_PREFIX(%rsi) + movq %rcx, SEG_PREFIX 8(%rsi) popf mov $1, %al -- cgit v1.2.3 From ae91dbfc9949cf042c45798557b48d3b83bc3635 Mon Sep 17 00:00:00 2001 From: Randy Dunlap <randy.dunlap@oracle.com> Date: Sat, 26 Mar 2011 13:27:01 -0700 Subject: mm: fix memory.c incorrect kernel-doc Fix mm/memory.c incorrect kernel-doc function notation: Warning(mm/memory.c:3718): Cannot understand * @access_remote_vm - access another process' address space on line 3718 - I thought it was a doc line Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index 51a5c23704af..9da8cab1b1b0 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3715,7 +3715,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm, } /** - * @access_remote_vm - access another process' address space + * access_remote_vm - access another process' address space * @mm: the mm_struct of the target address space * @addr: start address to access * @buf: source or destination buffer -- cgit v1.2.3 From 6213cfe82461e39219a3b06ecf1d0679b4c0657f Mon Sep 17 00:00:00 2001 From: Randy Dunlap <randy.dunlap@oracle.com> Date: Sat, 26 Mar 2011 13:27:41 -0700 Subject: ipc: fix util.c kernel-doc warnings Fix ipc/util.c kernel-doc warnings: Warning(ipc/util.c:336): No description found for parameter 'ns' Warning(ipc/util.c:620): No description found for parameter 'ns' Warning(ipc/util.c:790): No description found for parameter 'ns' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Reviewed-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- ipc/util.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/ipc/util.c b/ipc/util.c index 8fd1b891ec0c..5c0d28921ba8 100644 --- a/ipc/util.c +++ b/ipc/util.c @@ -317,6 +317,7 @@ retry: /** * ipc_check_perms - check security and permissions for an IPC + * @ns: IPC namespace * @ipcp: ipc permission set * @ops: the actual security routine to call * @params: its parameters @@ -607,6 +608,7 @@ void ipc_rcu_putref(void *ptr) /** * ipcperms - check IPC permissions + * @ns: IPC namespace * @ipcp: IPC permission set * @flag: desired permission set. * @@ -769,7 +771,7 @@ void ipc_update_perm(struct ipc64_perm *in, struct kern_ipc_perm *out) /** * ipcctl_pre_down - retrieve an ipc and check permissions for some IPC_XXX cmd - * @ids: the ipc namespace + * @ns: the ipc namespace * @ids: the table of ids where to look for the ipc * @id: the id of the ipc to retrieve * @cmd: the cmd to check -- cgit v1.2.3 From b6d0ad686da95fa85ce0c583ec35017bf1583563 Mon Sep 17 00:00:00 2001 From: Randy Dunlap <randy.dunlap@oracle.com> Date: Sat, 26 Mar 2011 13:27:47 -0700 Subject: fs: fix inode.c kernel-doc warning Fix inode.c kernel-doc fatal error: 2 comment sections have the same name: Error(fs/inode.c:1171): duplicate section name 'Note' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- fs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/inode.c b/fs/inode.c index 05a1f75ae791..5f4e11aaeb5c 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1167,7 +1167,7 @@ EXPORT_SYMBOL(igrab); * Note: I_NEW is not waited upon so you have to be very careful what you do * with the returned inode. You probably should be using ilookup5() instead. * - * Note: @test is called with the inode_hash_lock held, so can't sleep. + * Note2: @test is called with the inode_hash_lock held, so can't sleep. */ struct inode *ilookup5_nowait(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), void *data) -- cgit v1.2.3 From 1f524520f9002d47a6c636bb33ff483611c8913a Mon Sep 17 00:00:00 2001 From: Randy Dunlap <randy.dunlap@oracle.com> Date: Sat, 26 Mar 2011 13:28:00 -0700 Subject: docbook: fix broken media build DocBook/v4l/ no longer has any *.png files, so the 'cp' command fails, breaking the build. Drop the *.png cp. cp: cannot stat `linux-2.6.38-git18/Documentation/DocBook/v4l/*.png': No such file or directory Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- Documentation/DocBook/Makefile | 1 - 1 file changed, 1 deletion(-) diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile index 2deb069aedf1..8436b018c289 100644 --- a/Documentation/DocBook/Makefile +++ b/Documentation/DocBook/Makefile @@ -55,7 +55,6 @@ mandocs: $(MAN) build_images = mkdir -p $(objtree)/Documentation/DocBook/media/ && \ cp $(srctree)/Documentation/DocBook/dvb/*.png \ $(srctree)/Documentation/DocBook/v4l/*.gif \ - $(srctree)/Documentation/DocBook/v4l/*.png \ $(objtree)/Documentation/DocBook/media/ xmldoclinks: -- cgit v1.2.3 From 03b044cca18c7b3efd5a06fb5aacab5c6384c2fa Mon Sep 17 00:00:00 2001 From: Randy Dunlap <randy.dunlap@oracle.com> Date: Sat, 26 Mar 2011 13:27:54 -0700 Subject: docbook: fix rapidio warning Fix fsl_rio.c kernel-doc warning: no exported symbols as requested by !E are found: Warning(arch/powerpc/sysdev/fsl_rio.c): no structured comments found Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- Documentation/DocBook/rapidio.tmpl | 1 - 1 file changed, 1 deletion(-) diff --git a/Documentation/DocBook/rapidio.tmpl b/Documentation/DocBook/rapidio.tmpl index 54eb26b57372..50479360d845 100644 --- a/Documentation/DocBook/rapidio.tmpl +++ b/Documentation/DocBook/rapidio.tmpl @@ -133,7 +133,6 @@ !Idrivers/rapidio/rio-sysfs.c </sect1> <sect1 id="PPC32_support"><title>PPC32 support</title> -!Earch/powerpc/sysdev/fsl_rio.c !Iarch/powerpc/sysdev/fsl_rio.c </sect1> </chapter> -- cgit v1.2.3 From b15194b7076d6bb7b0b6f3efcb6a103e6cbcc5db Mon Sep 17 00:00:00 2001 From: Richard Weinberger <richard@nod.at> Date: Sat, 26 Mar 2011 20:48:57 +0100 Subject: um: Add myself as co-maintainer Signed-off-by: Richard Weinberger <richard@nod.at> Acked-and-appreciated-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 4fb9017b4413..42471b830967 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6633,6 +6633,7 @@ F: drivers/media/video/zr364xx.c USER-MODE LINUX (UML) M: Jeff Dike <jdike@addtoit.com> +M: Richard Weinberger <richard@nod.at> L: user-mode-linux-devel@lists.sourceforge.net L: user-mode-linux-user@lists.sourceforge.net W: http://user-mode-linux.sourceforge.net -- cgit v1.2.3 From 04a6553f0766df3f56830c89b7da2f618b7ef0b0 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell <sfr@canb.auug.org.au> Date: Sat, 26 Mar 2011 17:22:04 +1100 Subject: apm: orphan the driver I no longer have access to any hardware that uses APM and have not provided real maintenance for several years. Hopefully someone with the hardware or energy will step forward if the driver is to be kept. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- MAINTAINERS | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 42471b830967..8aa1cacddbcc 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -548,10 +548,8 @@ S: Maintained F: sound/aoa/ APM DRIVER -M: Stephen Rothwell <sfr@canb.auug.org.au> L: linux-laptop@vger.kernel.org -W: http://www.canb.auug.org.au/~sfr/ -S: Supported +S: Orphan F: arch/x86/kernel/apm_32.c F: include/linux/apm_bios.h -- cgit v1.2.3 From 787e5b06a80e7fc9dc02d9b53a9d8d2ac63b7ace Mon Sep 17 00:00:00 2001 From: Mike Frysinger <vapier@gentoo.org> Date: Wed, 23 Mar 2011 08:23:52 +0100 Subject: percpu: Cast away printk format warning On 32-bit systems which don't happen to implicitly define or cast VMALLOC_START and/or VMALLOC_END to long in their arch headers, the printk in the percpu code will cause a warning to be emitted: mm/percpu.c: In function 'pcpu_embed_first_chunk': mm/percpu.c:1648: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'unsigned int' So add an explicit cast to unsigned long here. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Tejun Heo <tj@kernel.org> --- mm/percpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/percpu.c b/mm/percpu.c index 3f930018aa60..8a11cd2e976d 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1646,8 +1646,8 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size, /* warn if maximum distance is further than 75% of vmalloc space */ if (max_distance > (VMALLOC_END - VMALLOC_START) * 3 / 4) { pr_warning("PERCPU: max_distance=0x%zx too large for vmalloc " - "space 0x%lx\n", - max_distance, VMALLOC_END - VMALLOC_START); + "space 0x%lx\n", max_distance, + (unsigned long)(VMALLOC_END - VMALLOC_START)); #ifdef CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK /* and fail if we have fallback */ rc = -EINVAL; -- cgit v1.2.3 From 5f55924deaa62d6df687c131fb92aebe071ec787 Mon Sep 17 00:00:00 2001 From: Eric Dumazet <eric.dumazet@gmail.com> Date: Mon, 28 Mar 2011 18:06:58 +0200 Subject: percpu: Avoid extra NOP in percpu_cmpxchg16b_double percpu_cmpxchg16b_double() uses alternative_io() and looks like : e8 .. .. .. .. call this_cpu_cmpxchg16b_emu X bytes NOPX or, once patched (if cpu supports native instruction) on SMP build : 65 48 0f c7 0e cmpxchg16b %gs:(%rsi) 0f 94 c0 sete %al on !SMP build : 48 0f c7 0e cmpxchg16b (%rsi) 0f 94 c0 sete %al Therefore, NOPX should be : P6_NOP3 on SMP P6_NOP2 on !SMP Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Christoph Lameter <cl@linux.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Pekka Enberg <penberg@kernel.org> Signed-off-by: Tejun Heo <tj@kernel.org> --- arch/x86/include/asm/percpu.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index d475b4398d8b..d68fca61ad91 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -509,6 +509,11 @@ do { \ * it in software. The address used in the cmpxchg16 instruction must be * aligned to a 16 byte boundary. */ +#ifdef CONFIG_SMP +#define CMPXCHG16B_EMU_CALL "call this_cpu_cmpxchg16b_emu\n\t" P6_NOP3 +#else +#define CMPXCHG16B_EMU_CALL "call this_cpu_cmpxchg16b_emu\n\t" P6_NOP2 +#endif #define percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2) \ ({ \ char __ret; \ @@ -517,7 +522,7 @@ do { \ typeof(o2) __o2 = o2; \ typeof(o2) __n2 = n2; \ typeof(o2) __dummy; \ - alternative_io("call this_cpu_cmpxchg16b_emu\n\t" P6_NOP4, \ + alternative_io(CMPXCHG16B_EMU_CALL, \ "cmpxchg16b " __percpu_prefix "(%%rsi)\n\tsetz %0\n\t", \ X86_FEATURE_CX16, \ ASM_OUTPUT2("=a"(__ret), "=d"(__dummy)), \ -- cgit v1.2.3 From 6ea0c34dac89611126455537552cffe6c7e832ad Mon Sep 17 00:00:00 2001 From: Mike Frysinger <vapier@gentoo.org> Date: Mon, 4 Apr 2011 01:41:32 +0200 Subject: percpu: Unify input section names The two percpu helper macros have the section names duplicated. So create a new define to merge the two. This also allows arches who need to link things more directly themselves to avoid duplicating the input sections in their linker script. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Tejun Heo <tj@kernel.org> --- include/asm-generic/vmlinux.lds.h | 44 +++++++++++++++++++++------------------ 1 file changed, 24 insertions(+), 20 deletions(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 32c45e5fe0ab..bf90fbc6688b 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -687,6 +687,28 @@ *(.discard.*) \ } +/** + * PERCPU_INPUT - the percpu input sections + * @cacheline: cacheline size + * + * The core percpu section names and core symbols which do not rely + * directly upon load addresses. + * + * @cacheline is used to align subsections to avoid false cacheline + * sharing between subsections for different purposes. + */ +#define PERCPU_INPUT(cacheline) \ + VMLINUX_SYMBOL(__per_cpu_start) = .; \ + *(.data..percpu..first) \ + . = ALIGN(PAGE_SIZE); \ + *(.data..percpu..page_aligned) \ + . = ALIGN(cacheline); \ + *(.data..percpu..readmostly) \ + . = ALIGN(cacheline); \ + *(.data..percpu) \ + *(.data..percpu..shared_aligned) \ + VMLINUX_SYMBOL(__per_cpu_end) = .; + /** * PERCPU_VADDR - define output section for percpu area * @cacheline: cacheline size @@ -715,16 +737,7 @@ VMLINUX_SYMBOL(__per_cpu_load) = .; \ .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \ - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__per_cpu_start) = .; \ - *(.data..percpu..first) \ - . = ALIGN(PAGE_SIZE); \ - *(.data..percpu..page_aligned) \ - . = ALIGN(cacheline); \ - *(.data..percpu..readmostly) \ - . = ALIGN(cacheline); \ - *(.data..percpu) \ - *(.data..percpu..shared_aligned) \ - VMLINUX_SYMBOL(__per_cpu_end) = .; \ + PERCPU_INPUT(cacheline) \ } phdr \ . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu); @@ -745,16 +758,7 @@ . = ALIGN(align); \ .data..percpu : AT(ADDR(.data..percpu) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__per_cpu_load) = .; \ - VMLINUX_SYMBOL(__per_cpu_start) = .; \ - *(.data..percpu..first) \ - . = ALIGN(PAGE_SIZE); \ - *(.data..percpu..page_aligned) \ - . = ALIGN(cacheline); \ - *(.data..percpu..readmostly) \ - . = ALIGN(cacheline); \ - *(.data..percpu) \ - *(.data..percpu..shared_aligned) \ - VMLINUX_SYMBOL(__per_cpu_end) = .; \ + PERCPU_INPUT(cacheline) \ } -- cgit v1.2.3