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2009-01-03cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_tRusty Russell1-2/+2
Impact: Reduce memory usage, use new API. This is part of an effort to reduce structure sizes for machines configured with large NR_CPUS. cpumask_t gets replaced by cpumask_var_t, which is either struct cpumask[1] (small NR_CPUS) or struct cpumask * (large NR_CPUS). (Changes to powernow-k* by <travis>.) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-19ACPI: don't cond_resched() when irqs_disabled()Wu Fengguang1-1/+5
The ACPI interpreter usually runs with irqs enabled. However, during suspend/resume it runs with irqs disabled to evaluate _GTS/_BFS, as well as by irqrouter_resume() which evaluates _CRS, _PRS, _SRS. http://bugzilla.kernel.org/show_bug.cgi?id=12252 Signed-off-by: Wu Fengguang <wfg@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-12-19ACPI: fix 2.6.28 acpi.debug_level regressionBjorn Helgaas1-1/+1
acpi_early_init() was changed to over-write the cmdline param, making it really inconvenient to set debug flags at boot-time. Also, This sets the default level to "info", which is what all the ACPI drivers use. So to enable messages from drivers, you only have to supply the "layer" (a.k.a. "component"). For non-"info" ACPI core and ACPI interpreter messages, you have to supply both level and layer masks, as before. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-27ACPICA: disable _BIF warningLin Ming1-1/+1
A generic work-around from ACPICA is in the queue, but since Linux has a work-around in its battery driver, we can disable this warning now. Allow _BIF method to return an Package with Buffer elements http://bugzilla.kernel.org/show_bug.cgi?id=11822 Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-27ACPICA: Allow _WAK method to return an IntegerBob Moore1-1/+1
This can happen if the _WAK method returns nothing (as per ACPI 1.0) but does return an integer if the implicit return mechanism is enabled. This is the only method that has this problem, since it is also defined to return a package of two integers (ACPI 1.0b+). In all other cases, if a method returns an object when one was not expected, no warning is issued. 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>
2008-11-11Merge branch 'ec' into releaseLen Brown1-2/+2
2008-11-11Merge branch 'processor-256' into releaseLen Brown1-0/+1
2008-11-11Merge branch 'video' into releaseLen Brown1-0/+2
Conflicts: Documentation/kernel-parameters.txt Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-11Merge branch 'misc' into releaseLen Brown1-5/+16
2008-11-11ACPICA: Use spinlock for acpi_{en|dis}able_gpeAlexey Starikovskiy1-2/+2
Disabling gpe might interfere with gpe detection/handling, thus producing "interrupt not handled" errors. Ironically, disabling of GPE from interrupt context is already under spinlock, so only userspace needs to start using it. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-07ACPI: video: Ignore devices that aren't present in hardwareThomas Renninger1-0/+2
This is a reimplemention of commit 0119509c4fbc9adcef1472817fda295334612976 from Matthew Garrett <mjg59@srcf.ucam.org> This patch got removed because of a regression: ThinkPads with a Intel graphics card and an Integrated Graphics Device BIOS implementation stopped working. In fact, they only worked because the ACPI device of the discrete, the wrong one, got used (via int10). So ACPI functions were poking on the wrong hardware used which is a sever bug. The next patch provides support for above ThinkPads to be able to switch brightness via the legacy thinkpad_acpi driver and automatically detect when to use it. Original commit message from Matthew Garrett: Vendors often ship machines with a choice of integrated or discrete graphics, and use the same DSDT for both. As a result, the ACPI video module will locate devices that may not exist on this specific platform. Attempt to determine whether the device exists or not, and abort the device creation if it doesn't. http://bugzilla.kernel.org/show_bug.cgi?id=9614 Signed-off-by: Thomas Renninger <trenn@suse.de> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-07ACPI: add driver component definitions to sysfs debug_layersBjorn Helgaas1-0/+4
/sys/module/acpi/parameters/debug_layers used to contain only the debug layers defined by the ACPI CA. This patch adds the additional layer definitions for ACPI drivers. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-07ACPI: fix conflicting component definitionsBjorn Helgaas1-3/+3
Some of the component definitions that were previous scattered around the drivers conflict with each other. That doesn't hurt anything except that setting one bit in the debug_layer mask would turn on debugging in two different modules. This patch fixes the conflicts. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-07ACPI: consolidate ACPI_*_COMPONENT definitions in acpi_drivers.hBjorn Helgaas1-1/+12
Move all the component definitions for drivers to a single shared place, include/acpi/acpi_drivers.h. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-06ACPI: Disambiguate processor declaration typeMyron Stowe1-0/+1
Declaring processors in ACPI namespace can be done using either a "Processor" definition or a "Device" definition (see section 8.4 - Declaring Processors; "Advanced Configuration and Power Interface Specification", Revision 3.0b). Currently the two processor declaration types are conflated. This patch disambiguates the processor declaration's definition type enabling subsequent code to behave uniquely based explicitly on the declaration's type. Signed-off-by: Myron Stowe <myron.stowe@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-06ACPI: remove CONFIG_ACPI_ECBjorn Helgaas1-2/+0
Remove CONFIG_ACPI_EC. It was always set the same as CONFIG_ACPI, and it had no menu label, so there was no way to set it to anything other than "y". Per section 6.5.4 of the ACPI 3.0b specification, OSPM must make Embedded Controller operation regions, accessed via the Embedded Controllers described in ECDT, available before executing any control method. The ECDT table is optional, but if it is present, the above text means that the EC it describes is a required part of the ACPI subsystem, so CONFIG_ACPI_EC=n wouldn't make sense. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-06ACPI: remove CONFIG_ACPI_POWERBjorn Helgaas1-2/+0
Remove CONFIG_ACPI_POWER. It was always set the same as CONFIG_ACPI, and it had no menu label, so there was no way to set it to anything other than "y". The interfaces under CONFIG_ACPI_POWER (acpi_device_sleep_wake(), acpi_power_transition(), etc) are called unconditionally from the ACPI core, so we already depend on it always being present. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-28ACPI: bugfix reporting of event handler statusZhang Rui1-0/+1
Introduce a new flag showing whether the event has an event handler/method. For all the GPEs and Fixed Events, 1. ACPI_EVENT_FLAG_HANDLE is cleared, it's an "invalid" ACPI event. 2. Both ACPI_EVENT_FLAG_HANDLE and ACPI_EVENT_FLAG_DISABLE are set, it's "disabled". 3. Both ACPI_EVENT_FLAG_HANDLE and ACPI_EVENT_FLAG_ENABLE are set, it's "enabled". 4. Both ACPI_EVENT_FLAG_HANDLE and ACPI_EVENT_FLAG_WAKE_ENABLE are set, it's "wake_enabled". Among other things, this prevents incorrect reporting of ACPI events as being "invalid" when it's really just (temporarily) "disabled". Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-23Merge branch 'linus' into testLen Brown2-4/+4
Conflicts: MAINTAINERS arch/x86/kernel/acpi/boot.c arch/x86/kernel/acpi/sleep.c drivers/acpi/Kconfig drivers/pnp/Makefile drivers/pnp/quirks.c Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22Merge branch 'ull' into testLen Brown1-1/+1
Conflicts: drivers/acpi/bay.c drivers/acpi/dock.c drivers/ata/libata-acpi.c Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22Merge branch 'misc' into testLen Brown1-1/+5
2008-10-22Merge branch 'ec' into testLen Brown1-0/+1
2008-10-22Merge branch 'dock' into testLen Brown3-2/+13
Conflicts: drivers/acpi/osl.c Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22Merge branch 'acpica' into testLen Brown15-255/+777
2008-10-22ACPICA: Update version to 20080926Bob Moore1-1/+1
Update version to 20080926. 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>
2008-10-22ACPICA: New: Validation for predefined ACPI methods/objectsBob Moore4-0/+468
Validates predefined ACPI objects that appear in the namespace, at the time they are evaluated. The argument count and the type of the returned object are validated. The purpose of this validation is to detect problems with the BIOS-exposed predefined ACPI objects before the results are returned to the ACPI-related drivers. 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>
2008-10-22ACPICA: Remove unused ACPI register bit definitionLin Ming1-11/+23
Removed the ACPI_BITREG_WAKE_ENABLE definition and entry in the global register table. This bit does not exist and is unused. http://www.acpica.org/bugzilla/show_bug.cgi?id=442 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>
2008-10-22ACPICA: Update version to 20080829Bob Moore1-1/+1
Update version to 20080829. 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>
2008-10-22ACPICA: Cleanup for internal Reference ObjectBob Moore3-11/+30
Fix some sloppiness in the Reference object. No longer use AML opcodes to differentiate the types, introduce new reference Class. Cleanup the debug output code. 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>
2008-10-22ACPICA: Update for Reference ACPI_OPERAND_OBJECTBob Moore1-0/+1
1) Add new field for use by DdbHandle (Value) 2) Use ACPI_CAST_INDIRECT_PTR to eliminate strict type warnings 3) Cleanup debug output 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>
2008-10-22ACPICA: Remove obsolete exception codesBob Moore1-73/+55
Removed 10 exception codes (and corresponding name strings) that were obsolete for various reasons. 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>
2008-10-22ACPICA: Add namespace node to operand object unionBob Moore1-0/+7
Add ACPI_NAMESPACE_NODE to the ACPI_OPERAND_OBJECT in order to simplify code that accepts both of these objects. A common type field is used to differentiate them. 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>
2008-10-22ACPICA: Remove obsolete debug levels (WARN and ERROR)Bob Moore1-19/+13
Removed ACPI_DB_WARN and ACPI_DB_ERROR. These debug levels were made obsolete by the ACPI_WARNING and ACPI_ERROR/ACPI_EXCEPTION interfaces. Also added ACPI_DB_EVENTS to correspond with the existing ACPI_LV_EVENTS. 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>
2008-10-22ACPICA: add preemption point after each opcode parseAlexey Starikovskiy2-0/+11
Reference: http://marc.info/?l=linux-acpi&m=122236382701062&w=2 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22ACPICA: Update version to 20080729Bob Moore1-1/+1
Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22ACPICA: x2APIC support: changes for MADT and SRAT ACPI tablesBob Moore2-6/+49
Support for the x2APIC. There are 2 new subtables for the MADT and one new subtable for the SRAT. Includes disassembler and acpisrc support. Data from the Intel 64 Architecture x2APIC Specification, June 2008. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22ACPICA: Add function to decode reference obj types to stringsBob Moore1-0/+2
Created for improved error messages. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22ACPICA: Update version to 20080701Bob Moore1-1/+1
Update version to 20080701. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22ACPICA: Return method arg count from acpi_get_object_infoBob Moore1-0/+1
Also update the debugger so that the correct number of arguments is passed to the method. Prevents a warning message from the debugger. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22ACPICA: Cleanup macro definition file.Bob Moore1-133/+115
Removed unused macros. Ensure that multiple parameters always have a space after a comma. Cleanup some comments. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22ACPICA: Return status from global init functionYi Yang1-1/+1
Return status from acpi_ut_init_globals. This is used by both the kernel subsystem and the utilities such as iASL compiler. The function could possibly fail when the caches are initialized. Yang Yi. Signed-off-by: Yi Yang <yi.y.yang@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22ACPICA: Fix wrong resource descriptor length for 64-bit buildBob Moore1-1/+1
The "minimal" descriptors such as EndTag are calculated as 12 bytes long, but the actual length in the internal descriptor is 16 because of the round-up to 8 on 64-bit build. http://www.acpica.org/bugzilla/show_bug.cgi?id=728 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22ACPI: Add "acpi.power_nocheck=1" to disable power state check in power ↵Zhao Yakui1-0/+1
transition Maybe the incorrect power state is returned on the bogus bios, which is different with the real power state. For example: the bios returns D0 state and the real power state is D3. OS expects to set the device to D0 state. In such case if OS uses the power state returned by the BIOS and checks the device power state very strictly in power transition, the device can't be transited to the correct power state. So the boot option of "acpi.power_nocheck=1" is added to avoid checking the device power in the course of device power transition. http://bugzilla.kernel.org/show_bug.cgi?id=8049 http://bugzilla.kernel.org/show_bug.cgi?id=11000 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Li Shaohua <shaohua.li@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-16include: replace __FUNCTION__ with __func__Harvey Harrison2-4/+4
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-11ACPI: Change acpi_evaluate_integer to support 64-bit on 32-bit kernelsMatthew Wilcox1-1/+1
As of version 2.0, ACPI can return 64-bit integers. The current acpi_evaluate_integer only supports 64-bit integers on 64-bit platforms. Change the argument to take a pointer to an acpi_integer so we support 64-bit integers on all platforms. lenb: replaced use of "acpi_integer" with "unsigned long long" lenb: fixed bug in acpi_thermal_trips_update() Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-11ACPI: Enable EC device immediately after ACPI full initializationZhao Yakui1-0/+1
when there is no ECDT table and no _INI object for EC device, it will be enabled before scanning ACPI device. But it is too late after the following the commit is merged. >commit 7752d5cfe3d11ca0bb9c673ec38bd78ba6578f8e > Author: Robert Hancock <hancockr@shaw.ca> > Date: Fri Feb 15 01:27:20 2008 -0800 >x86: validate against acpi motherboard resources After the above commit is merged, OS will check whether MCFG area is reserved in ACPI motherboard resources by calling the function of acpi_get_devices when there exists MCFG table. In the acpi_get_devices the _STA object will be evaluated to check the status of the ACPI device. On some broken BIOS the MYEC object of EC device is initialized as one, which indicates that EC operation region is already accessible before enabling EC device.So on these broken BIOS the EC operation region will be accessed in course of evaluating the _STA object before enabling EC device, which causes that OS will print the following warning messages: >ACPI Error (evregion-0315): No handler for Region [EC__] (ffff88007f8145e8) [EmbeddedControl] [20080609] >ACPI Error (exfldio-0290): Region EmbeddedControl(3) has no handler [20080321] >ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.SBRG. EC__.BAT1._STA] (Node ffff81013fc17a00), AE_NOT_EXIST >ACPI Error (uteval-0233): Method execution failed [\_SB_.PCI0.SBRG.EC__.BAT1. _STA] (Node ffff81013fc17a00), AE_NOT_EXIST Although the above warning message is harmless, it looks confusing. So it is necessary to enable EC device as early as possible.Maybe it is appropriate to enable it immediately after ACPI full initialization. http://bugzilla.kernel.org/show_bug.cgi?id=11255 http://bugzilla.kernel.org/show_bug.cgi?id=11374 http://bugzilla.kernel.org/show_bug.cgi?id=11660 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-10ACPI: catch calls of acpi_driver_data on pointer of wrong typePavel Machek1-1/+5
Catch attempts to use of acpi_driver_data on pointers of wrong type. akpm: rewritten to use proper C typechecking and remove the "function"-used-as-lvalue thing. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23dock: introduce .uevent for devices in dock, eg libataShaohua Li1-2/+7
dock's uevent reported itself, not ata. It might be difficult to find an ata device just according to a dock. This patch introduces docking ops for each device in a dock. when docking, dock driver can send device specific uevent. This should help dock station too (not just bay) Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23ACPI: fix hotplug raceZhang Rui1-0/+3
The hotplug notification handler and drivers' notification handler all run in one workqueue. Before hotplug removes an acpi device, the device driver's notification handler is already be recorded to run just after global notification handler. After hotplug notification handler runs, acpica will notice a NULL notification handler and crash. So now we run run hotplug in another workqueue and wait for all acpi notication handlers finish. This was found in battery hotplug, but actually all hotplug can be affected. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-09-23ACPI: introduce notifier change to avoid duplicatesShaohua Li1-0/+3
The battery driver already registers notification handler. To avoid registering notification handler again, introduce a notifier chain in global system notifier handler and use it in dock driver. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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