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2009-06-24Merge branch 'bjorn-notify' into releaseLen Brown1-0/+3
Conflicts: drivers/platform/x86/eeepc-laptop.c Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-24Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', ↵Len Brown4-12/+10
'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release
2009-06-23ACPI: Add the reference count to avoid unloading ACPI video bus twiceZhao Yakui1-2/+2
Sometimes both acpi video and i915 driver are compiled as modules. And there exists the strict dependency between the two drivers. The acpi video bus will be unloaded in course of unloading the i915 driver. If we unload the acpi video driver, then the kernel oops will be triggered. Add the reference count to avoid unloading the ACPI video bus twice. The reference count should be checked before unregistering the acpi video bus. If the reference count is already zero, it won't unregister it again. And after the acpi video bus is already unregistered, the reference count will be set to zero. http://bugzilla.kernel.org/show_bug.cgi?id=13396 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-20ACPI: pdc init related memory leak with physical CPU hotplugPallipadi, Venkatesh1-0/+1
arch_acpi_processor_cleanup_pdc() in x86 and ia64 results in memory allocated for _PDC objects that is never freed and will cause memory leak in case of physical CPU remove and add. Patch fixes the memory leak by freeing the objects soon after _PDC is evaluated. Reported-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-18ACPI: allow drivers to request both device and system notify eventsBjorn Helgaas1-0/+3
System notify events (0x00-0x7f) are common across all device types and should be handled in Linux/ACPI, not in drivers. However, some BIOSes use system notify events in device-specific ways that require the driver to be involved. This patch adds a ACPI_DRIVER_ALL_NOTIFY_EVENTS driver flag. When a driver sets this flag and supplies a .notify method, Linux/ACPI calls the .notify method for ALL notify events on the device, not just the device-specific (0x80-0xff) events. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-17ACPI: kill acpi_get_physical_pci_device()Alexander Chiang1-1/+0
acpi_get_pci_dev() is (hopefully) better, and all callers have been converted, so let's get rid of this duplicated functionality. Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-17ACPI: kill acpi_get_pci_idAlexander Chiang1-1/+0
acpi_get_pci_dev() is better, and all callers have been converted, so eliminate acpi_get_pci_id(). Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-17ACPI: simplify acpi_pci_irq_del_prt() APIAlexander Chiang1-1/+1
There is no need to pass a segment/bus tuple to this API, as the callsite always has a struct pci_bus. We can derive segment/bus from the struct pci_bus, so let's take this opportunit to simplify the API and make life easier for the callers. Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-17ACPI: simplify acpi_pci_irq_add_prt() APIAlexander Chiang1-1/+1
A PCI domain cannot change as you descend down subordinate buses, which makes the 'segment' argument to acpi_pci_irq_add_prt() useless. Change the interface to take a struct pci_bus *, from whence we can derive the bus number and segment. Reducing the number of arguments makes life simpler for callers. Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-17ACPI: eviscerate pci_bind.cAlexander Chiang1-2/+1
Now that we can dynamically convert an ACPI CA handle to a struct pci_dev at runtime, there's no need to statically bind them during boot. acpi_pci_bind/unbind are vastly simplified, and are only used to evaluate _PRT methods on P2P bridges and non-bridge children. This patch also changes the time-space tradeoff ever so slightly. Looking up the ACPI-PCI binding is never in the performance path, and by eliminating this caching, we save 24 bytes for each _ADR device in the ACPI namespace. This patch lays further groundwork to eventually eliminate the acpi_driver_ops.bind callback. Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-17ACPI: Introduce acpi_get_pci_dev()Alexander Chiang1-0/+1
Convert an ACPI CA handle to a struct pci_dev. Performing this lookup dynamically allows us to get rid of the ACPI-PCI binding code, which: - eliminates struct acpi_device vs struct pci_dev lifetime issues - lays more groundwork for eliminating .start from acpi_device_ops and thus simplifying ACPI drivers - whacks out a lot of code This change lays the groundwork for eliminating much of pci_bind.c. Although pci_root.c may not be the most logical place for this change, putting it here saves us from having to export acpi_pci_find_root. Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-17ACPI: Introduce acpi_is_root_bridge()Alexander Chiang1-0/+1
Returns whether an ACPI CA node is a PCI root bridge or not. This API is generically useful, and shouldn't just be a hotplug function. The implementation becomes much simpler as well. Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-17ACPI: make acpi_pci_bind() staticAlexander Chiang1-1/+0
acpi_pci_root_add() explicitly assigns device->ops.bind, and later calls acpi_pci_bind_root(), which also does the same thing. We don't need to repeat ourselves; removing the explicit assignment allows us to make acpi_pci_bind() static. Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-12ACPI: increase size of acpi_bus_id[]Zhao Yakui1-1/+1
Previously [5], now [8]. sprintf(acpi_device_bid(device), "CPU%X", cpu_id) now looks better on systems with more than 0xFF processors. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27ACPI: processor: move device _HID into driverBjorn Helgaas1-1/+0
The ACPI0007 _HID used for processor "Device" objects in the namespace is not needed outside the processor driver, so move it there. Also, the #define is only used once, so just remove it and hard-code "ACPI0007". Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27ACPI: use LNXCPU, not ACPI_CPU, for Linux-specific processor _HIDBjorn Helgaas1-1/+1
ACPI_PROCESSOR_OBJECT_HID is a synthetic _HID that Linux generates for "Processor" definitions. Unlike "Device" definitions, "Processor" definitions do not have a _HID in the namespace, so we generate a fake _HID. By convention, all these fake _HIDs begin with "LNX". This does change the user-visible _HID for "Processor" objects -- previously, we used "ACPI_CPU" and this changes that to "LNXCPU", which starts with "LNX" as do all the other made-up _HIDs. This change is visible in processor filenames and "hid" files under /sys/devices/LNXSYSTM:00/. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27ACPICA: Update version to 20090521.Bob Moore1-1/+1
Update version number. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27ACPICA: New: AcpiInstallMethod - install a single control methodLin Ming1-0/+2
This interface enables the override or creation of a single control method. Useful to repair a bug or install a missing method. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27ACPICA: Update version to 20090422.Bob Moore1-1/+1
Version 20090422. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27ACPICA: Linux OSL: cleanup/update/mergeBob Moore1-25/+38
Merge the OSL with the actual file used by Linux, so that the file does not require patching when integrated with Linux. General cleanup and some restructuring. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27ACPICA: Cleanup byte/word/dword extraction macros, fix possible warningsBob Moore1-14/+6
Removed unnecessary masking. For the 64-bit macros, removed the structure overlay. Fixes aliasing warnings seen with gcc 4+ compilers. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27ACPICA: Fix a few warnings for gcc 3.4.4Bob Moore1-0/+4
Mostly for acpiexec, one in the core subsystem. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-27ACPICA: Update error/warning interfacesBob Moore1-1/+4
Moved the module name and line number to the end of the message. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-28Merge branch 'drm-intel-next' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel * 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: drm/i915: fix up error path leak in i915_cmdbuffer drm/i915: fix unpaired i915 device mutex on entervt failure. drm/i915: add support for G41 chipset drm/i915: Enable ASLE if present drm/i915: Unregister ACPI video driver when exiting drm/i915: Register ACPI video even when not modesetting drm/i915: fix transition to I915_TILING_NONE drm/i915: Don't let an oops get triggered from irq_emit without dma init. drm/i915: allow tiled front buffers on 965+
2009-04-22ACPI: delete obsolete "bus master activity" proc fieldLen Brown1-1/+0
Linux-2.6.29 deleted the legacy ACPI idle handler, leaving the CPU_IDLE handler, which does not track bus master activity. So delete the unused bm_activity field -- it is confusing to print an always zero value. This patch could break programs that parse /proc/acpi/processor/*/power, since it deletes this line from that file: bus master activity: 00000000 http://bugzilla.kernel.org/show_bug.cgi?id=13145 is not fixed by this patch, but provoked this patch. Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-17drm/i915: Unregister ACPI video driver when exitingMatthew Garrett1-0/+2
The i915 DRM triggers registration of the ACPI video driver on load. It should unregister it at unload in order to avoid generating backtraces on being reloaded. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2009-04-07Merge branches 'release', 'APERF', 'ARAT', 'misc', 'kelvin', 'device-lock' ↵Len Brown1-1/+0
and 'bjorn.notify' into release
2009-04-07hwmon: Add Asus ATK0110 supportLuca Tettamanti1-2/+0
Asus boards have an ACPI interface for interacting with the hwmon (fan, temperatures, voltages) subsystem; this driver exposes the relevant information via the standard sysfs interface. There are two different ACPI interfaces: - an old one (based on RVLT/RFAN/RTMP) - a new one (GGRP/GITM) Both may be present but there a few cases (my board, sigh) where the new interface is just an empty stub; the driver defaults to the old one when both are present. The old interface has received a considerable testing, but I'm still awaiting confirmation from my tester that the new one is working as expected (hence the debug code is still enabled). Currently all the attributes are read-only, though a (partial) control should be possible with a bit more work. Signed-off-by: Luca Tettamanti <kronos.it@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-04-07ACPI: delete acpi_device.g_listLen Brown1-1/+0
unused Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05ACPI: support acpi_device_ops .notify methodsBjorn Helgaas2-0/+12
This patch adds support for ACPI device driver .notify() methods. If such a method is present, Linux/ACPI installs a handler for device notifications (but not for system notifications such as Bus Check, Device Check, etc). When a device notification occurs, Linux/ACPI passes it on to the driver's .notify() method. In most cases, this removes the need for drivers to install their own handlers for device-specific notifications. For fixed hardware devices like some power and sleep buttons, there's no notification value because there's no control method to execute a Notify opcode. When a fixed hardware device generates an event, we handle it the same as a regular device notification, except we send a ACPI_FIXED_HARDWARE_EVENT value. This is outside the normal 0x0-0xff range used by Notify opcodes. Several drivers install their own handlers for system Bus Check and Device Check notifications so they can support hot-plug. This patch doesn't affect that usage. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Reviewed-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05Merge branch 'linus' into releaseLen Brown2-0/+5
Conflicts: arch/x86/kernel/cpu/cpufreq/longhaul.c Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05Merge branch 'x2apic' into releaseLen Brown1-3/+3
2009-04-05Merge branch 'constify' into releaseLen Brown1-2/+2
2009-04-05Merge branch 'video' into releaseLen Brown1-0/+11
Conflicts: drivers/acpi/video.c Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05Merge branch 'driver-ops-cleanup' into releaseLen Brown1-16/+0
2009-04-05Merge branch 'bjorn-initcall-cleanup' into releaseLen Brown1-23/+0
2009-04-03ACPI: constify VFTs (1/2)Jan Engelhardt1-2/+2
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03ACPI: update x2apic commentsSuresh Siddha1-3/+3
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27ACPI: Populate DIDL before registering ACPI video device on IntelMatthew Garrett1-0/+11
Intel graphics hardware that implements the ACPI IGD OpRegion spec requires that the list of display devices be populated before any ACPI video methods are called. Detect when this is the case and defer registration until the opregion code calls it. Fixes crashes on HP laptops. http://bugzilla.kernel.org/show_bug.cgi?id=11259 Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27ACPI: remove unused acpi_bus_ops flagsBjorn Helgaas1-10/+0
In acpi_bus_ops, only the acpi_op_add and acpi_op_start flags are used, so remove all the rest. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27ACPI: remove unused acpi_device_ops .shutdown methodBjorn Helgaas1-2/+0
No drivers use the .shutdown method, so remove it. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27ACPI: remove unused acpi_device_ops .lock and .scan methodsBjorn Helgaas1-4/+0
No drivers use the .lock and .scan methods, and the Linux/ACPI code doesn't even provide a way to invoke them, so remove them. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27ACPICA: Update version to 20090320Bob Moore1-1/+1
Version 20090320. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27ACPICA: Remove obsolete acpi_os_validate_address interfaceBob Moore1-4/+0
This interface is no longer necessary. Requests should be validated on a per-field basis, not on the entire operation region. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27ACPICA: Add manifest constants for bit register valuesBob Moore1-0/+9
Add and deploy constants for the PM status/enable/control registers. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-26ACPICA: Update version to 20090220Bob Moore1-1/+1
Version 20090220. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-26ACPICA: Rename ACPI bit register access functionsBob Moore1-2/+2
Rename acpi_get_register and acpi_set_register to clarify the purpose of these functions. New names are acpi_read_bit_register and acpi_write_bit_register. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-26ACPICA: Optimize ACPI register lockingBob Moore1-2/+0
Removed locking for reads from the ACPI bit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is not required when reading the single-bit registers. The acpi_get_register_unlocked function is no longer needed and has been removed. This will improve performance for reads on these registers. ACPICA BZ 760. http://www.acpica.org/bugzilla/show_bug.cgi?id=760 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-26ACPICA: Conditionally compile acpi_set_firmware_waking_vector64Bob Moore1-4/+4
This function is only needed on 64-bit host operating systems. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-26ACPICA: Remove redundant ACPI_BITREG_SLEEP_TYPE_BBob Moore1-5/+4
This type is the same as TYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to simply SLEEP_TYPE. ACPICA BZ 754. http://www.acpica.org/bugzilla/show_bug.cgi?id=754 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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