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-rw-r--r--arch/sh/Kconfig22
-rw-r--r--arch/sh/boards/mach-ecovec24/setup.c4
-rw-r--r--arch/sh/drivers/dma/dma-api.c28
-rw-r--r--arch/sh/drivers/pci/pcie-sh7786.c2
-rw-r--r--arch/sh/include/asm/hugetlb.h1
-rw-r--r--arch/sh/include/asm/suspend.h4
-rw-r--r--arch/sh/include/asm/thread_info.h2
-rw-r--r--arch/sh/include/asm/unistd.h8
-rw-r--r--arch/sh/kernel/Makefile1
-rw-r--r--arch/sh/kernel/cpu/shmobile/cpuidle.c101
-rw-r--r--arch/sh/kernel/cpu/shmobile/pm.c3
-rw-r--r--arch/sh/kernel/cpufreq.c201
-rw-r--r--arch/sh/kernel/dumpstack.c6
-rw-r--r--arch/sh/kernel/idle.c101
-rw-r--r--arch/sh/kernel/process_32.c6
-rw-r--r--arch/sh/kernel/process_64.c1
-rw-r--r--arch/sh/kernel/sh_bios.c4
-rw-r--r--arch/sh/kernel/smp.c2
-rw-r--r--arch/sh/mm/Kconfig7
-rw-r--r--arch/sh/mm/alignment.c2
-rw-r--r--arch/sh/mm/init.c26
21 files changed, 90 insertions, 442 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5e859633ce69..78d8ace57272 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -33,6 +33,7 @@ config SUPERH
select GENERIC_ATOMIC64
select GENERIC_IRQ_SHOW
select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_IDLE_POLL_SETUP
select GENERIC_CLOCKEVENTS
select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
select GENERIC_STRNCPY_FROM_USER
@@ -148,9 +149,6 @@ config ARCH_HAS_ILOG2_U32
config ARCH_HAS_ILOG2_U64
def_bool n
-config ARCH_HAS_DEFAULT_IDLE
- def_bool y
-
config NO_IOPORT
def_bool !PCI
depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \
@@ -624,25 +622,7 @@ config SH_CLK_CPG_LEGACY
endmenu
menu "CPU Frequency scaling"
-
source "drivers/cpufreq/Kconfig"
-
-config SH_CPU_FREQ
- tristate "SuperH CPU Frequency driver"
- depends on CPU_FREQ
- select CPU_FREQ_TABLE
- help
- This adds the cpufreq driver for SuperH. Any CPU that supports
- clock rate rounding through the clock framework can use this
- driver. While it will make the kernel slightly larger, this is
- harmless for CPUs that don't support rate rounding. The driver
- will also generate a notice in the boot log before disabling
- itself if the CPU in question is not capable of rate rounding.
-
- For details, take a look at <file:Documentation/cpu-freq>.
-
- If unsure, say N.
-
endmenu
source "arch/sh/drivers/Kconfig"
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index aaff7671101b..764530c85aa9 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -254,11 +254,13 @@ static int usbhs_get_id(struct platform_device *pdev)
return gpio_get_value(GPIO_PTB3);
}
-static void usbhs_phy_reset(struct platform_device *pdev)
+static int usbhs_phy_reset(struct platform_device *pdev)
{
/* enable vbus if HOST */
if (!gpio_get_value(GPIO_PTB3))
gpio_set_value(GPIO_PTB5, 1);
+
+ return 0;
}
static struct renesas_usbhs_platform_info usbhs_info = {
diff --git a/arch/sh/drivers/dma/dma-api.c b/arch/sh/drivers/dma/dma-api.c
index f46848f088e4..c0eec08d8f95 100644
--- a/arch/sh/drivers/dma/dma-api.c
+++ b/arch/sh/drivers/dma/dma-api.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/list.h>
#include <linux/platform_device.h>
#include <linux/mm.h>
@@ -308,11 +309,9 @@ int dma_extend(unsigned int chan, unsigned long op, void *param)
}
EXPORT_SYMBOL(dma_extend);
-static int dma_read_proc(char *buf, char **start, off_t off,
- int len, int *eof, void *data)
+static int dma_proc_show(struct seq_file *m, void *v)
{
- struct dma_info *info;
- char *p = buf;
+ struct dma_info *info = v;
if (list_empty(&registered_dmac_list))
return 0;
@@ -332,14 +331,26 @@ static int dma_read_proc(char *buf, char **start, off_t off,
if (!(channel->flags & DMA_CONFIGURED))
continue;
- p += sprintf(p, "%2d: %14s %s\n", i,
- info->name, channel->dev_id);
+ seq_printf(m, "%2d: %14s %s\n", i,
+ info->name, channel->dev_id);
}
}
- return p - buf;
+ return 0;
+}
+
+static int dma_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, dma_proc_show, NULL);
}
+static const struct file_operations dma_proc_fops = {
+ .open = dma_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
int register_dmac(struct dma_info *info)
{
unsigned int total_channels, i;
@@ -412,8 +423,7 @@ EXPORT_SYMBOL(unregister_dmac);
static int __init dma_api_init(void)
{
printk(KERN_NOTICE "DMA: Registering DMA API.\n");
- return create_proc_read_entry("dma", 0, 0, dma_read_proc, 0)
- ? 0 : -ENOMEM;
+ return proc_create("dma", 0, NULL, &dma_proc_fops) ? 0 : -ENOMEM;
}
subsys_initcall(dma_api_init);
diff --git a/arch/sh/drivers/pci/pcie-sh7786.c b/arch/sh/drivers/pci/pcie-sh7786.c
index c2c85f6cd738..a162a7f86b2e 100644
--- a/arch/sh/drivers/pci/pcie-sh7786.c
+++ b/arch/sh/drivers/pci/pcie-sh7786.c
@@ -35,7 +35,7 @@ static unsigned int nr_ports;
static struct sh7786_pcie_hwops {
int (*core_init)(void);
- async_func_ptr *port_init_hw;
+ async_func_t port_init_hw;
} *sh7786_pcie_hwops;
static struct resource sh7786_pci0_resources[] = {
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index b3808c7d67b2..699255d6d1c6 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -3,6 +3,7 @@
#include <asm/cacheflush.h>
#include <asm/page.h>
+#include <asm-generic/hugetlb.h>
static inline int is_hugepage_only_range(struct mm_struct *mm,
diff --git a/arch/sh/include/asm/suspend.h b/arch/sh/include/asm/suspend.h
index e14567a7e9a1..70ae0b2888ab 100644
--- a/arch/sh/include/asm/suspend.h
+++ b/arch/sh/include/asm/suspend.h
@@ -14,9 +14,9 @@ struct swsusp_arch_regs {
void sh_mobile_call_standby(unsigned long mode);
#ifdef CONFIG_CPU_IDLE
-void sh_mobile_setup_cpuidle(void);
+int sh_mobile_setup_cpuidle(void);
#else
-static inline void sh_mobile_setup_cpuidle(void) {}
+static inline int sh_mobile_setup_cpuidle(void) { return 0; }
#endif
/* notifier chains for pre/post sleep hooks */
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index 7d5ac4e48485..45a93669289d 100644
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -207,8 +207,6 @@ static inline bool test_and_clear_restore_sigmask(void)
return true;
}
-#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
-
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
diff --git a/arch/sh/include/asm/unistd.h b/arch/sh/include/asm/unistd.h
index 5e90fa2b7eed..e77816c4b9bc 100644
--- a/arch/sh/include/asm/unistd.h
+++ b/arch/sh/include/asm/unistd.h
@@ -30,12 +30,4 @@
# define __ARCH_WANT_SYS_VFORK
# define __ARCH_WANT_SYS_CLONE
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-# define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-
#include <uapi/asm/unistd.h>
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index f259b37874e9..261c8bfd75ce 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -31,7 +31,6 @@ obj-$(CONFIG_VSYSCALL) += vsyscall/
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SH_STANDARD_BIOS) += sh_bios.o
obj-$(CONFIG_KGDB) += kgdb.o
-obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o
obj-$(CONFIG_MODULES) += sh_ksyms_$(BITS).o module.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
diff --git a/arch/sh/kernel/cpu/shmobile/cpuidle.c b/arch/sh/kernel/cpu/shmobile/cpuidle.c
index 1ddc876d3b26..d30622592116 100644
--- a/arch/sh/kernel/cpu/shmobile/cpuidle.c
+++ b/arch/sh/kernel/cpu/shmobile/cpuidle.c
@@ -51,70 +51,53 @@ static int cpuidle_sleep_enter(struct cpuidle_device *dev,
return k;
}
-static struct cpuidle_device cpuidle_dev;
static struct cpuidle_driver cpuidle_driver = {
- .name = "sh_idle",
- .owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
+ .name = "sh_idle",
+ .owner = THIS_MODULE,
+ .states = {
+ {
+ .exit_latency = 1,
+ .target_residency = 1 * 2,
+ .power_usage = 3,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .enter = cpuidle_sleep_enter,
+ .name = "C1",
+ .desc = "SuperH Sleep Mode",
+ },
+ {
+ .exit_latency = 100,
+ .target_residency = 1 * 2,
+ .power_usage = 1,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .enter = cpuidle_sleep_enter,
+ .name = "C2",
+ .desc = "SuperH Sleep Mode [SF]",
+ .disabled = true,
+ },
+ {
+ .exit_latency = 2300,
+ .target_residency = 1 * 2,
+ .power_usage = 1,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .enter = cpuidle_sleep_enter,
+ .name = "C3",
+ .desc = "SuperH Mobile Standby Mode [SF]",
+ .disabled = true,
+ },
+ },
+ .safe_state_index = 0,
+ .state_count = 3,
};
-void sh_mobile_setup_cpuidle(void)
+int __init sh_mobile_setup_cpuidle(void)
{
- struct cpuidle_device *dev = &cpuidle_dev;
- struct cpuidle_driver *drv = &cpuidle_driver;
- struct cpuidle_state *state;
- int i;
+ int ret;
+ if (sh_mobile_sleep_supported & SUSP_SH_SF)
+ cpuidle_driver.states[1].disabled = false;
- for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
- drv->states[i].name[0] = '\0';
- drv->states[i].desc[0] = '\0';
- }
+ if (sh_mobile_sleep_supported & SUSP_SH_STANDBY)
+ cpuidle_driver.states[2].disabled = false;
- i = CPUIDLE_DRIVER_STATE_START;
-
- state = &drv->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
- strncpy(state->desc, "SuperH Sleep Mode", CPUIDLE_DESC_LEN);
- state->exit_latency = 1;
- state->target_residency = 1 * 2;
- state->power_usage = 3;
- state->flags = 0;
- state->flags |= CPUIDLE_FLAG_TIME_VALID;
- state->enter = cpuidle_sleep_enter;
-
- drv->safe_state_index = i-1;
-
- if (sh_mobile_sleep_supported & SUSP_SH_SF) {
- state = &drv->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C2");
- strncpy(state->desc, "SuperH Sleep Mode [SF]",
- CPUIDLE_DESC_LEN);
- state->exit_latency = 100;
- state->target_residency = 1 * 2;
- state->power_usage = 1;
- state->flags = 0;
- state->flags |= CPUIDLE_FLAG_TIME_VALID;
- state->enter = cpuidle_sleep_enter;
- }
-
- if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) {
- state = &drv->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C3");
- strncpy(state->desc, "SuperH Mobile Standby Mode [SF]",
- CPUIDLE_DESC_LEN);
- state->exit_latency = 2300;
- state->target_residency = 1 * 2;
- state->power_usage = 1;
- state->flags = 0;
- state->flags |= CPUIDLE_FLAG_TIME_VALID;
- state->enter = cpuidle_sleep_enter;
- }
-
- drv->state_count = i;
- dev->state_count = i;
-
- cpuidle_register_driver(&cpuidle_driver);
-
- cpuidle_register_device(dev);
+ return cpuidle_register(&cpuidle_driver);
}
diff --git a/arch/sh/kernel/cpu/shmobile/pm.c b/arch/sh/kernel/cpu/shmobile/pm.c
index 08d27fac8d08..ac37b7234f85 100644
--- a/arch/sh/kernel/cpu/shmobile/pm.c
+++ b/arch/sh/kernel/cpu/shmobile/pm.c
@@ -150,8 +150,7 @@ static const struct platform_suspend_ops sh_pm_ops = {
static int __init sh_pm_init(void)
{
suspend_set_ops(&sh_pm_ops);
- sh_mobile_setup_cpuidle();
- return 0;
+ return sh_mobile_setup_cpuidle();
}
late_initcall(sh_pm_init);
diff --git a/arch/sh/kernel/cpufreq.c b/arch/sh/kernel/cpufreq.c
deleted file mode 100644
index e68b45b6f3f9..000000000000
--- a/arch/sh/kernel/cpufreq.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * arch/sh/kernel/cpufreq.c
- *
- * cpufreq driver for the SuperH processors.
- *
- * Copyright (C) 2002 - 2012 Paul Mundt
- * Copyright (C) 2002 M. R. Brown
- *
- * Clock framework bits from arch/avr32/mach-at32ap/cpufreq.c
- *
- * Copyright (C) 2004-2007 Atmel Corporation
- *
- * 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 pr_fmt(fmt) "cpufreq: " fmt
-
-#include <linux/types.h>
-#include <linux/cpufreq.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/cpumask.h>
-#include <linux/cpu.h>
-#include <linux/smp.h>
-#include <linux/sched.h> /* set_cpus_allowed() */
-#include <linux/clk.h>
-#include <linux/percpu.h>
-#include <linux/sh_clk.h>
-
-static DEFINE_PER_CPU(struct clk, sh_cpuclk);
-
-static unsigned int sh_cpufreq_get(unsigned int cpu)
-{
- return (clk_get_rate(&per_cpu(sh_cpuclk, cpu)) + 500) / 1000;
-}
-
-/*
- * Here we notify other drivers of the proposed change and the final change.
- */
-static int sh_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int cpu = policy->cpu;
- struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu);
- cpumask_t cpus_allowed;
- struct cpufreq_freqs freqs;
- struct device *dev;
- long freq;
-
- if (!cpu_online(cpu))
- return -ENODEV;
-
- cpus_allowed = current->cpus_allowed;
- set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
- BUG_ON(smp_processor_id() != cpu);
-
- dev = get_cpu_device(cpu);
-
- /* Convert target_freq from kHz to Hz */
- freq = clk_round_rate(cpuclk, target_freq * 1000);
-
- if (freq < (policy->min * 1000) || freq > (policy->max * 1000))
- return -EINVAL;
-
- dev_dbg(dev, "requested frequency %u Hz\n", target_freq * 1000);
-
- freqs.cpu = cpu;
- freqs.old = sh_cpufreq_get(cpu);
- freqs.new = (freq + 500) / 1000;
- freqs.flags = 0;
-
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- set_cpus_allowed_ptr(current, &cpus_allowed);
- clk_set_rate(cpuclk, freq);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
- dev_dbg(dev, "set frequency %lu Hz\n", freq);
-
- return 0;
-}
-
-static int sh_cpufreq_verify(struct cpufreq_policy *policy)
-{
- struct clk *cpuclk = &per_cpu(sh_cpuclk, policy->cpu);
- struct cpufreq_frequency_table *freq_table;
-
- freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL;
- if (freq_table)
- return cpufreq_frequency_table_verify(policy, freq_table);
-
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
-
- policy->min = (clk_round_rate(cpuclk, 1) + 500) / 1000;
- policy->max = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
-
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
-
- return 0;
-}
-
-static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy)
-{
- unsigned int cpu = policy->cpu;
- struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu);
- struct cpufreq_frequency_table *freq_table;
- struct device *dev;
-
- if (!cpu_online(cpu))
- return -ENODEV;
-
- dev = get_cpu_device(cpu);
-
- cpuclk = clk_get(dev, "cpu_clk");
- if (IS_ERR(cpuclk)) {
- dev_err(dev, "couldn't get CPU clk\n");
- return PTR_ERR(cpuclk);
- }
-
- policy->cur = policy->min = policy->max = sh_cpufreq_get(cpu);
-
- freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL;
- if (freq_table) {
- int result;
-
- result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
- if (!result)
- cpufreq_frequency_table_get_attr(freq_table, cpu);
- } else {
- dev_notice(dev, "no frequency table found, falling back "
- "to rate rounding.\n");
-
- policy->cpuinfo.min_freq =
- (clk_round_rate(cpuclk, 1) + 500) / 1000;
- policy->cpuinfo.max_freq =
- (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
- }
-
- policy->min = policy->cpuinfo.min_freq;
- policy->max = policy->cpuinfo.max_freq;
-
- policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-
- dev_info(dev, "CPU Frequencies - Minimum %u.%03u MHz, "
- "Maximum %u.%03u MHz.\n",
- policy->min / 1000, policy->min % 1000,
- policy->max / 1000, policy->max % 1000);
-
- return 0;
-}
-
-static int sh_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
- unsigned int cpu = policy->cpu;
- struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu);
-
- cpufreq_frequency_table_put_attr(cpu);
- clk_put(cpuclk);
-
- return 0;
-}
-
-static struct freq_attr *sh_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-static struct cpufreq_driver sh_cpufreq_driver = {
- .owner = THIS_MODULE,
- .name = "sh",
- .get = sh_cpufreq_get,
- .target = sh_cpufreq_target,
- .verify = sh_cpufreq_verify,
- .init = sh_cpufreq_cpu_init,
- .exit = sh_cpufreq_cpu_exit,
- .attr = sh_freq_attr,
-};
-
-static int __init sh_cpufreq_module_init(void)
-{
- pr_notice("SuperH CPU frequency driver.\n");
- return cpufreq_register_driver(&sh_cpufreq_driver);
-}
-
-static void __exit sh_cpufreq_module_exit(void)
-{
- cpufreq_unregister_driver(&sh_cpufreq_driver);
-}
-
-module_init(sh_cpufreq_module_init);
-module_exit(sh_cpufreq_module_exit);
-
-MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>");
-MODULE_DESCRIPTION("cpufreq driver for SuperH");
-MODULE_LICENSE("GPL");
diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c
index 7617dc4129ac..b959f5592604 100644
--- a/arch/sh/kernel/dumpstack.c
+++ b/arch/sh/kernel/dumpstack.c
@@ -158,9 +158,3 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
(unsigned long)task_stack_page(tsk));
show_trace(tsk, sp, NULL);
}
-
-void dump_stack(void)
-{
- show_stack(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c
index 3d5a1b387cc0..2ea4483fd722 100644
--- a/arch/sh/kernel/idle.c
+++ b/arch/sh/kernel/idle.c
@@ -24,98 +24,24 @@
static void (*sh_idle)(void);
-static int hlt_counter;
-
-static int __init nohlt_setup(char *__unused)
-{
- hlt_counter = 1;
- return 1;
-}
-__setup("nohlt", nohlt_setup);
-
-static int __init hlt_setup(char *__unused)
-{
- hlt_counter = 0;
- return 1;
-}
-__setup("hlt", hlt_setup);
-
-static inline int hlt_works(void)
-{
- return !hlt_counter;
-}
-
-/*
- * On SMP it's slightly faster (but much more power-consuming!)
- * to poll the ->work.need_resched flag instead of waiting for the
- * cross-CPU IPI to arrive. Use this option with caution.
- */
-static void poll_idle(void)
+void default_idle(void)
{
+ set_bl_bit();
local_irq_enable();
- while (!need_resched())
- cpu_relax();
+ /* Isn't this racy ? */
+ cpu_sleep();
+ clear_bl_bit();
}
-void default_idle(void)
+void arch_cpu_idle_dead(void)
{
- if (hlt_works()) {
- clear_thread_flag(TIF_POLLING_NRFLAG);
- smp_mb__after_clear_bit();
-
- set_bl_bit();
- if (!need_resched()) {
- local_irq_enable();
- cpu_sleep();
- } else
- local_irq_enable();
-
- set_thread_flag(TIF_POLLING_NRFLAG);
- clear_bl_bit();
- } else
- poll_idle();
+ play_dead();
}
-/*
- * 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)
+void arch_cpu_idle(void)
{
- unsigned int cpu = smp_processor_id();
-
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- /* endless idle loop with no priority at all */
- while (1) {
- tick_nohz_idle_enter();
- rcu_idle_enter();
-
- while (!need_resched()) {
- check_pgt_cache();
- rmb();
-
- if (cpu_is_offline(cpu))
- play_dead();
-
- local_irq_disable();
- /* Don't trace irqs off for idle */
- stop_critical_timings();
- if (cpuidle_idle_call())
- sh_idle();
- /*
- * Sanity check to ensure that sh_idle() returns
- * with IRQs enabled
- */
- WARN_ON(irqs_disabled());
- start_critical_timings();
- }
-
- rcu_idle_exit();
- tick_nohz_idle_exit();
- schedule_preempt_disabled();
- }
+ if (cpuidle_idle_call())
+ sh_idle();
}
void __init select_idle_routine(void)
@@ -123,13 +49,8 @@ void __init select_idle_routine(void)
/*
* If a platform has set its own idle routine, leave it alone.
*/
- if (sh_idle)
- return;
-
- if (hlt_works())
+ if (!sh_idle)
sh_idle = default_idle;
- else
- sh_idle = poll_idle;
}
void stop_this_cpu(void *unused)
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 73eb66fc6253..ebd3933005b4 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -32,11 +32,7 @@
void show_regs(struct pt_regs * regs)
{
printk("\n");
- printk("Pid : %d, Comm: \t\t%s\n", task_pid_nr(current), current->comm);
- printk("CPU : %d \t\t%s (%s %.*s)\n\n",
- smp_processor_id(), print_tainted(), init_utsname()->release,
- (int)strcspn(init_utsname()->version, " "),
- init_utsname()->version);
+ show_regs_print_info(KERN_DEFAULT);
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("PR is at %s\n", regs->pr);
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index e611c85144b1..174d124b419e 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -40,6 +40,7 @@ void show_regs(struct pt_regs *regs)
unsigned long long ah, al, bh, bl, ch, cl;
printk("\n");
+ show_regs_print_info(KERN_DEFAULT);
ah = (regs->pc) >> 32;
al = (regs->pc) & 0xffffffff;
diff --git a/arch/sh/kernel/sh_bios.c b/arch/sh/kernel/sh_bios.c
index 47475cca068a..fe584e516964 100644
--- a/arch/sh/kernel/sh_bios.c
+++ b/arch/sh/kernel/sh_bios.c
@@ -104,6 +104,7 @@ void sh_bios_vbr_reload(void)
);
}
+#ifdef CONFIG_EARLY_PRINTK
/*
* Print a string through the BIOS
*/
@@ -144,8 +145,6 @@ static struct console bios_console = {
.index = -1,
};
-static struct console *early_console;
-
static int __init setup_early_printk(char *buf)
{
int keep_early = 0;
@@ -170,3 +169,4 @@ static int __init setup_early_printk(char *buf)
return 0;
}
early_param("earlyprintk", setup_early_printk);
+#endif
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 2062aa88af41..45696451f0ea 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -203,7 +203,7 @@ asmlinkage void __cpuinit start_secondary(void)
set_cpu_online(cpu, true);
per_cpu(cpu_state, cpu) = CPU_ONLINE;
- cpu_idle();
+ cpu_startup_entry(CPUHP_ONLINE);
}
extern struct {
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 5a43a871e097..dba285e86808 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -137,13 +137,6 @@ config ARCH_SPARSEMEM_ENABLE
config ARCH_SPARSEMEM_DEFAULT
def_bool y
-config MAX_ACTIVE_REGIONS
- int
- default "6" if (CPU_SUBTYPE_SHX3 && SPARSEMEM)
- default "2" if SPARSEMEM && (CPU_SUBTYPE_SH7722 || \
- CPU_SUBTYPE_SH7785)
- default "1"
-
config ARCH_SELECT_MEMORY_MODEL
def_bool y
diff --git a/arch/sh/mm/alignment.c b/arch/sh/mm/alignment.c
index aea14855e656..ec2b25302427 100644
--- a/arch/sh/mm/alignment.c
+++ b/arch/sh/mm/alignment.c
@@ -140,7 +140,7 @@ static int alignment_proc_open(struct inode *inode, struct file *file)
static ssize_t alignment_proc_write(struct file *file,
const char __user *buffer, size_t count, loff_t *pos)
{
- int *data = PDE(file_inode(file))->data;
+ int *data = PDE_DATA(file_inode(file));
char mode;
if (count > 0) {
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 105794037143..20f9ead650d3 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -417,15 +417,13 @@ void __init mem_init(void)
for_each_online_node(nid) {
pg_data_t *pgdat = NODE_DATA(nid);
- unsigned long node_pages = 0;
void *node_high_memory;
num_physpages += pgdat->node_present_pages;
if (pgdat->node_spanned_pages)
- node_pages = free_all_bootmem_node(pgdat);
+ totalram_pages += free_all_bootmem_node(pgdat);
- totalram_pages += node_pages;
node_high_memory = (void *)__va((pgdat->node_start_pfn +
pgdat->node_spanned_pages) <<
@@ -501,31 +499,13 @@ void __init mem_init(void)
void free_initmem(void)
{
- unsigned long addr;
-
- addr = (unsigned long)(&__init_begin);
- for (; addr < (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("Freeing unused kernel memory: %ldk freed\n",
- ((unsigned long)&__init_end -
- (unsigned long)&__init_begin) >> 10);
+ free_initmem_default(0);
}
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- unsigned long p;
- for (p = start; p < end; p += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(p));
- init_page_count(virt_to_page(p));
- free_page(p);
- totalram_pages++;
- }
- printk("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+ free_reserved_area(start, end, 0, "initrd");
}
#endif