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2012-01-23Merge branches 'atomicio-apei', 'hotplug', 'sony-nvs-nosave' and ↵Len Brown
'thermal-netlink' into release
2012-01-21ACPI: Remove ./drivers/acpi/atomicio.[ch]Myron Stowe
With the conversion of atomicio's routines in place (see commits 6f68c91c55e and 700130b41f4), atomicio.[ch] can be removed, replacing the APEI specific pre-mapping capabilities with the more generalized versions that drivers/acpi/osl.c provides. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-01-21ACPI, APEI: Add 64-bit read/write support for APEI on i386Myron Stowe
Base ACPI (CA) currently does not support atomic 64-bit reads and writes (acpi_read() and acpi_write() split 64-bit loads/stores into two 32-bit transfers) yet APEI expects 64-bit transfer capability, even when running on 32-bit systems. This patch implements 64-bit read and write routines for APEI usage. This patch re-factors similar functionality introduced in commit 04c25997c97, bringing it into the ACPI subsystem in preparation for removing ./drivers/acpi/atomicio.[ch]. In the implementation I have replicated acpi_os_read_memory() and acpi_os_write_memory(), creating 64-bit versions for APEI to utilize, as opposed to something more elegant. My thinking is that we should attempt to see if we can get ACPI's CA/OSL changed so that the existing acpi_read() and acpi_write() interfaces are natively 64-bit capable and then subsequently remove the replication. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-01-19ACPI processor hotplug: Delay acpi_processor_start() call for hotplugged coresThomas Renninger
Delay the setting up of features (cpuidle, throttling by calling acpi_processor_start()) to the time when the hotplugged core got onlined the first time and got fully initialized. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2012-01-18Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux This includes initial support for the recently published ACPI 5.0 spec. In particular, support for the "hardware-reduced" bit that eliminates the dependency on legacy hardware. APEI has patches resulting from testing on real hardware. Plus other random fixes. * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (52 commits) acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 ACPI processor: Remove unneeded cpuidle_unregister_driver call intel idle: Make idle driver more robust intel_idle: Fix a cast to pointer from integer of different size warning in intel_idle ACPI: kernel-parameters.txt : Add intel_idle.max_cstate intel_idle: remove redundant local_irq_disable() call ACPI processor: Fix error path, also remove sysdev link ACPI: processor: fix acpi_get_cpuid for UP processor intel_idle: fix API misuse ACPI APEI: Convert atomicio routines ACPI: Export interfaces for ioremapping/iounmapping ACPI registers ACPI: Fix possible alignment issues with GAS 'address' references ACPI, ia64: Use SRAT table rev to use 8bit or 16/32bit PXM fields (ia64) ACPI, x86: Use SRAT table rev to use 8bit or 32bit PXM fields (x86/x86-64) ACPI: Store SRAT table revision ACPI, APEI, Resolve false conflict between ACPI NVS and APEI ACPI, Record ACPI NVS regions ACPI, APEI, EINJ, Refine the fix of resource conflict ...
2012-01-18Merge branches 'einj', 'intel_idle', 'misc', 'srat' and 'turbostat-ivb' into ↵Len Brown
release
2012-01-18acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi specTony Luck
ACPI 5.0 provides extensions to the EINJ mechanism to specify the target for the error injection - by APICID for cpu related errors, by address for memory related errors, and by segment/bus/device/function for PCIe related errors. Also extensions for vendor specific error injections. Tested-by: Chen Gong <gong.chen@linux.intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-01-17ACPI: Store SRAT table revisionKurt Garloff
In SRAT v1, we had 8bit proximity domain (PXM) fields; SRAT v2 provides 32bits for these. The new fields were reserved before. According to the ACPI spec, the OS must disregrard reserved fields. In order to know whether or not, we must know what version the SRAT table has. This patch stores the SRAT table revision for later consumption by arch specific __init functions. Signed-off-by: Kurt Garloff <kurt@garloff.de> Signed-off-by: Len Brown <len.brown@intel.com>
2012-01-17ACPICA: Update to version 20120111Bob Moore
Version 20120111. 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>
2012-01-17ACPICA: Add support for region address conflict checkingLin Ming
Allows drivers to determine if any memory or I/O addresses will conflict with addresses used by ACPI operation regions. Introduces a new interface, acpi_check_address_range. http://marc.info/?t=132251388700002&r=1&w=2 Reported-and-tested-by: Luca Tettamanti <kronos.it@gmail.com> 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>
2012-01-17ACPICA: Update to version 20111123Bob Moore
This version contains full support for the ACPI 5.0 specification. 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>
2012-01-17ACPI 5.0: Allow _AEI method in walk resourcesZhang Rui
_AEI contains a resource template, this change adds support for the walk resources function. Signed-off-by: Zhang Rui <rui.zhang@intel.com> 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>
2012-01-17ACPI 5.0: New interface, acpi_buffer_to_resourceBob Moore
This interface converts an AML buffer to an internal ACPI_RESOURCE. 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>
2012-01-17ACPI 5.0: New interface, acpi_get_event_resourcesBob Moore
Executes _AEI and formats the result, similar to acpi_get_current_resources, etc. 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>
2012-01-17ACPI 5.0: Support for all new resource descriptorsLin Ming
FixedDMA, GPIO descriptors, SerialBus descriptors 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>
2012-01-17ACPI 5.0: Support for GeneralPurposeIo and GenericSerialBus operation regionBob Moore
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>
2012-01-17ACPI 5.0: Implement Connection() and AccessAs() changesBob Moore
Support within the interpreter and operation region dispatch. 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>
2012-01-17ACPI 5.0: New interfaces to allow driver access to AML mutex objectsLin Ming
Adds acpi_acquire_mutex, acpi_release_mutex external interfaces. New file, utxfmutex.c. 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>
2012-01-17ACPI 5.0: Add new/changed tables to headersBob Moore
Adds new file, actbl3.h 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>
2012-01-17ACPI 5.0: Implement hardware-reduced optionBob Moore
If HW-reduced flag is set in the FADT, do not attempt to access or initialize any ACPI hardware, including SCI and global lock. No FACS will be present. 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>
2012-01-17ACPI 5.0: Basic support for FADT version 5Bob Moore
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>
2012-01-13module_param: make bool parameters really bool (drivers & misc)Rusty Russell
module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-11-07Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: cpuidle: Single/Global registration of idle states cpuidle: Split cpuidle_state structure and move per-cpu statistics fields cpuidle: Remove CPUIDLE_FLAG_IGNORE and dev->prepare() cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state ACPI: Fix CONFIG_ACPI_DOCK=n compiler warning ACPI: Export FADT pm_profile integer value to userspace thermal: Prevent polling from happening during system suspend ACPI: Drop ACPI_NO_HARDWARE_INIT ACPI atomicio: Convert width in bits to bytes in __acpi_ioremap_fast() PNPACPI: Simplify disabled resource registration ACPI: Fix possible recursive locking in hwregs.c ACPI: use kstrdup() mrst pmu: update comment tools/power turbostat: less verbose debugging
2011-11-06Merge branches 'acpi', 'idle', 'mrst-pmu' and 'pm-tools' into nextLen Brown
2011-11-06cpuidle: Single/Global registration of idle statesDeepthi Dharwar
This patch makes the cpuidle_states structure global (single copy) instead of per-cpu. The statistics needed on per-cpu basis by the governor are kept per-cpu. This simplifies the cpuidle subsystem as state registration is done by single cpu only. Having single copy of cpuidle_states saves memory. Rare case of asymmetric C-states can be handled within the cpuidle driver and architectures such as POWER do not have asymmetric C-states. Having single/global registration of all the idle states, dynamic C-state transitions on x86 are handled by the boot cpu. Here, the boot cpu would disable all the devices, re-populate the states and later enable all the devices, irrespective of the cpu that would receive the notification first. Reference: https://lkml.org/lkml/2011/4/25/83 Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com> Tested-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06ACPI: Fix CONFIG_ACPI_DOCK=n compiler warningBart Van Assche
Recently the ACPI ops structs were constified but the inline version of register_hotplug_dock_device() was overlooked (see also commit 9c8b04b, June 25 2011). Update the inline function register_hotplug_dock_device() that is enabled with CONFIG_ACPI_DOCK=n too. This patch fixes at least the following compiler warnings: drivers/ata/libata-acpi.c: In function .ata_acpi_associate.: drivers/ata/libata-acpi.c:266:11: warning: passing argument 2 of .register_hotplug_dock_device. discards qualifiers from pointer target type include/acpi/acpi_drivers.h:146:19: note: expected .struct acpi_dock_ops *. but argument is of type .const struct acpi_dock_ops *. drivers/ata/libata-acpi.c:275:11: warning: passing argument 2 of .register_hotplug_dock_device. discards qualifiers from pointer target type include/acpi/acpi_drivers.h:146:19: note: expected .struct acpi_dock_ops *. but argument is of type .const struct acpi_dock_ops *. Cc: stable@vger.kernel.org Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06ACPI: Drop ACPI_NO_HARDWARE_INITRafael J. Wysocki
ACPI_NO_HARDWARE_INIT is only used by acpi_early_init() and acpi_bus_init() when calling acpi_enable_subsystem(), but acpi_enable_subsystem() doesn't check that flag, so it can be dropped. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2011-10-31acpi: remove module.h include from platform/aclinux.hPaul Gortmaker
This file had an include of module.h which was probably added in relation to this line: #define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol); However, we really expect symbol exporters to grab export.h themselves, and since this is only a define, we can remove the module.h include without aclinux.h itself causing any compile issues. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-14PCI hotplug: acpiphp: Prevent deadlock on PCI-to-PCI bridge removePrarit Bhargava
I originally submitted a patch to workaround this by pushing all Ejection Requests and Device Checks onto the kacpi_hotplug queue. http://marc.info/?l=linux-acpi&m=131678270930105&w=2 The patch is still insufficient in that Bus Checks also need to be added. Rather than add all events, including non-PCI-hotplug events, to the hotplug queue, mjg suggested that a better approach would be to modify the acpiphp driver so only acpiphp events would be added to the kacpi_hotplug queue. It's a longer patch, but at least we maintain the benefit of having separate queues in ACPI. This, of course, is still only a workaround the problem. As Bjorn and mjg pointed out, we have to refactor a lot of this code to do the right thing but at this point it is a better to have this code working. The acpi core places all events on the kacpi_notify queue. When the acpiphp driver is loaded and a PCI card with a PCI-to-PCI bridge is removed the following call sequence occurs: cleanup_p2p_bridge() -> cleanup_bridge() -> acpi_remove_notify_handler() -> acpi_os_wait_events_complete() -> flush_workqueue(kacpi_notify_wq) which is the queue we are currently executing on and the process will hang. Move all hotplug acpiphp events onto the kacpi_hotplug workqueue. In handle_hotplug_event_bridge() and handle_hotplug_event_func() we can simply push the rest of the work onto the kacpi_hotplug queue and then avoid the deadlock. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Cc: mjg@redhat.com Cc: bhelgaas@google.com Cc: linux-acpi@vger.kernel.org Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-08-03Merge branch 'apei-release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'apei-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI, APEI, EINJ Param support is disabled by default APEI GHES: 32-bit buildfix ACPI: APEI build fix ACPI, APEI, GHES: Add hardware memory error recovery support HWPoison: add memory_failure_queue() ACPI, APEI, GHES, Error records content based throttle ACPI, APEI, GHES, printk support for recoverable error via NMI lib, Make gen_pool memory allocator lockless lib, Add lock-less NULL terminated single list Add Kconfig option ARCH_HAVE_NMI_SAFE_CMPXCHG ACPI, APEI, Add WHEA _OSC support ACPI, APEI, Add APEI bit support in generic _OSC call ACPI, APEI, GHES, Support disable GHES at boot time ACPI, APEI, GHES, Prevent GHES to be built as module ACPI, APEI, Use apei_exec_run_optional in APEI EINJ and ERST ACPI, APEI, Add apei_exec_run_optional ACPI, APEI, GHES, Do not ratelimit fatal error printk before panic ACPI, APEI, ERST, Fix erst-dbg long record reading issue ACPI, APEI, ERST, Prevent erst_dbg from loading if ERST is disabled
2011-08-03Merge branch 'apei' into apei-releaseLen Brown
Some trivial conflicts due to other various merges adding to the end of common lists sooner than this one. arch/ia64/Kconfig arch/powerpc/Kconfig arch/x86/Kconfig lib/Kconfig lib/Makefile Signed-off-by: Len Brown <len.brown@intel.com>
2011-08-03ACPI: APEI build fixLen Brown
as GHES is optional... When # CONFIG_ACPI_APEI_GHES is not set: (.init.text+0x4c22): undefined reference to `ghes_disable' Reported-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Len Brown <len.brown@intel.com>
2011-08-02Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (28 commits) ACPI: delete stale reference in kernel-parameters.txt ACPI: add missing _OSI strings ACPI: remove NID_INVAL thermal: make THERMAL_HWMON implementation fully internal thermal: split hwmon lookup to a separate function thermal: hide CONFIG_THERMAL_HWMON ACPI print OSI(Linux) warning only once ACPI: DMI workaround for Asus A8N-SLI Premium and Asus A8N-SLI DELUX ACPI / Battery: propagate sysfs error in acpi_battery_add() ACPI / Battery: avoid acpi_battery_add() use-after-free ACPI: introduce "acpi_rsdp=" parameter for kdump ACPI: constify ops structs ACPI: fix CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS ACPI: fix 80 char overflow ACPI / Battery: Resolve the race condition in the sysfs_remove_battery() ACPI / Battery: Add the check before refresh sysfs in the battery_notify() ACPI / Battery: Add the hibernation process in the battery_notify() ACPI / Battery: Rename acpi_battery_quirks2 with acpi_battery_quirks ACPI / Battery: Change 16-bit signed negative battery current into correct value ACPI / Battery: Add the power unit macro ...
2011-08-02Merge branches 'acpica', 'battery', 'boot-irqs', 'bz-24492', 'bz-9528', ↵Len Brown
'from-akpm', 'kexec-param' and 'misc' into release Conflicts: Documentation/kernel-parameters.txt Signed-off-by: Len Brown <len.brown@intel.com>
2011-07-26atomic: use <linux/atomic.h>Arun Sharma
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26Merge branch 'drm-core-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (135 commits) drm/radeon/kms: fix DP training for DPEncoderService revision bigger than 1.1 drm/radeon/kms: add missing vddci setting on NI+ drm/radeon: Add a rmb() in IH processing drm/radeon: ATOM Endian fix for atombios_crtc_program_pll() drm/radeon: Fix the definition of RADEON_BUF_SWAP_32BIT drm/radeon: Do an MMIO read on interrupts when not uisng MSIs drm/radeon: Writeback endian fixes drm/radeon: Remove a bunch of useless _iomem casts drm/gem: add support for private objects DRM: clean up and document parsing of video= parameter DRM: Radeon: Fix section mismatch. drm: really make debug levels match in edid failure code drm/radeon/kms: fix i2c map for rv250/280 drm/nouveau/gr: disable fifo access and idle before suspend ctx unload drm/nouveau: pass flag to engine fini() method on suspend drm/nouveau: replace nv04_graph_fifo_access() use with direct reg bashing drm/nv40/gr: rewrite/split context takedown functions drm/nouveau: detect disabled device in irq handler and return IRQ_NONE drm/nouveau: ignore connector type when deciding digital/analog on DVI-I drm/nouveau: Add a quirk for Gigabyte NX86T ...
2011-07-16ACPI: constify ops structsVasiliy Kulikov
Structs battery_file, acpi_dock_ops, file_operations, thermal_cooling_device_ops, thermal_zone_device_ops, kernel_param_ops are not changed in runtime. It is safe to make them const. register_hotplug_dock_device() was altered to take const "ops" argument to respect acpi_dock_ops' const notion. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-07-14Merge branches 'd3cold', 'bugzilla-37412' and 'bugzilla-38152' into releaseLen Brown
2011-07-13ACPI: Fixes device power states array overflowLin Ming
Commit 28c2103 added new state ACPI_STATE_D3_COLD, so the device power states array must be expanded by one also. v2: Use ACPI_D_STATE_COUNT instead of number 5 for the array size. Reported-by: Dan Carpenter <error27@gmail.com> Suggested-by: Oldřich Jedlička <oldium.pro@seznam.cz> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-07-13ACPICA: Update to version 20110623Bob Moore
Version 20110623. 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>
2011-07-13ACPICA: Add option to disable method return value validation and repairBob Moore
Runtime option can be used to disable return value repair if this is causing a problem on a particular machine. 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>
2011-07-13ACPICA: Update to version 20110527Bob Moore
Version 20110527. 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>
2011-07-13ACPI, APEI, GHES, Support disable GHES at boot timeHuang Ying
Some machine may have broken firmware so that GHES and firmware first mode should be disabled. This patch adds support to that. Signed-off-by: Huang Ying <ying.huang@intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-07-13ACPI: Fix lockdep false positives in acpi_power_off()Rafael J. Wysocki
All ACPICA locks are allocated by the same function, acpi_os_create_lock(), with the help of a local variable called "lock". Thus, when lockdep is enabled, it uses "lock" as the name of all those locks and regards them as instances of the same lock, which causes it to report possible locking problems with them when there aren't any. To work around this problem, define acpi_os_create_lock() as a macro and make it pass its argument to spin_lock_init(), so that lockdep uses it as the name of the new lock. Define this macron in a Linux-specific file, to minimize the resulting modifications of the OS-independent ACPICA parts. This change is based on an earlier patch from Andrea Righi and it addresses a regression from 2.6.39 tracked as https://bugzilla.kernel.org/show_bug.cgi?id=38152 Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-and-tested-by: Borislav Petkov <bp@alien8.de> Tested-by: Andrea Righi <andrea@betterlinux.com> Reviewed-by: Florian Mickler <florian@mickler.org> Signed-off-by: Len Brown <len.brown@intel.com>
2011-07-13i915: Fix opregion notificationsMatthew Garrett
opregion-based platforms will send ACPI video event 0x80 for a range of notification types for legacy compatibility. This is interpreted as a display switch event, which may not be appropriate in the circumstances. When we receive such an event we should make sure that the platform is genuinely requesting a display switch before passing that event through to userspace. Signed-off-by: Matthew Garrett <mjg@redhat.com> Tested-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-05-29Merge branches 'acpica', 'aml-custom', 'bugzilla-16548', 'bugzilla-20242', ↵Len Brown
'd3-cold', 'ec-asus' and 'thermal-fix' into release
2011-05-29ACPI: Add D3 cold stateLin Ming
_SxW returns an Integer containing the lowest D-state supported in state Sx. If OSPM has not indicated that it supports _PR3, then the value “3” corresponds to D3. If it has indicated _PR3 support, the value “3” represents D3hot and the value “4” represents D3cold. Linux does set _OSC._PR3, so we should fix it to expect that _SxW can return 4. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Len Brown <len.brown@intel.com>
2011-05-29ACPI: processor: fix processor_physically_present in UP kernelLin Ming
Usually, there are multiple processors defined in ACPI table, for example Scope (_PR) { Processor (CPU0, 0x00, 0x00000410, 0x06) {} Processor (CPU1, 0x01, 0x00000410, 0x06) {} Processor (CPU2, 0x02, 0x00000410, 0x06) {} Processor (CPU3, 0x03, 0x00000410, 0x06) {} } processor_physically_present(...) will be called to check whether those processors are physically present. Currently we have below codes in processor_physically_present, cpuid = acpi_get_cpuid(...); if ((cpuid == -1) && (num_possible_cpus() > 1)) return false; return true; In UP kernel, acpi_get_cpuid(...) always return -1 and num_possible_cpus() always return 1, so processor_physically_present(...) always returns true for all passed in processor handles. This is wrong for UP processor or SMP processor running UP kernel. This patch removes the !SMP version of acpi_get_cpuid(), so both UP and SMP kernel use the same acpi_get_cpuid function. And for UP kernel, only processor 0 is valid. https://bugzilla.kernel.org/show_bug.cgi?id=16548 https://bugzilla.kernel.org/show_bug.cgi?id=16357 Tested-by: Anton Kochkov <anton.kochkov@gmail.com> Tested-by: Ambroz Bizjak <ambrop7@gmail.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-05-09ACPICA: Update to version 20110413Bob Moore
Version 20110413 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>
2011-05-09ACPICA: Execute an orphan _REG method under the EC deviceBob Moore
This change will force the execution of a _REG method underneath the EC device even if there is no corresponding operation region of type EmbeddedControl. Fixes a problem seen on some machines and apparently is compatible with Windows behavior. http://www.acpica.org/bugzilla/show_bug.cgi?id=875 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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