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* acpi: Support IBM SMBus CMI devicesDarrick J. Wong2010-03-241-0/+2
| | | | | | | | | | | | | On some old IBM workstations and desktop computers, the BIOS presents in the DSDT an SMBus object that is missing the HID identifier that the i2c-scmi driver looks for. Modify the ACPI device scan code to insert the missing HID if it finds an IBM system with such an object. Affected machines: IntelliStation Z20/Z30. Note that the i2c-i801 driver no longer works on these machines because of ACPI resource conflicts. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* ACPI: processor: export acpi_get_cpuid()Alex Chiang2010-03-151-0/+8
| | | | | | | | | | | | Rename static get_cpu_id() to acpi_get_cpuid() and export it. This change also gives us an opportunity to remove the #ifndef CONFIG_SMP from processor_driver.c and into a header file where it properly belongs. Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: processor: mv processor_pdc.c processor_core.cAlex Chiang2010-03-151-1/+1
| | | | | | | | | | | | | | | We've renamed the old processor_core.c to processor_driver.c, to convey the idea that it can be built modular and has driver-like bits. Now let's re-create a processor_core.c for the bits needed statically by the rest of the kernel. The contents of processor_pdc.c are a good starting spot, so let's just rename that file and complete our three card monte. Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2010-03-031-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: add __percpu sparse annotations to what's left percpu: add __percpu sparse annotations to fs percpu: add __percpu sparse annotations to core kernel subsystems local_t: Remove leftover local.h this_cpu: Remove pageset_notifier this_cpu: Page allocator conversion percpu, x86: Generic inc / dec percpu instructions local_t: Move local.h include to ringbuffer.c and ring_buffer_benchmark.c module: Use this_cpu_xx to dynamically allocate counters local_t: Remove cpu_local_xx macros percpu: refactor the code in pcpu_[de]populate_chunk() percpu: remove compile warnings caused by __verify_pcpu_ptr() percpu: make accessors check for percpu pointer in sparse percpu: add __percpu for sparse. percpu: make access macros universal percpu: remove per_cpu__ prefix.
| * percpu: add __percpu sparse annotations to what's leftTejun Heo2010-02-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add __percpu sparse annotations to places which didn't make it in one of the previous patches. All converions are trivial. These annotations are to make sparse consider percpu variables to be in a different address space and warn if accessed without going through percpu accessors. This patch doesn't affect normal builds. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Borislav Petkov <borislav.petkov@amd.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Neil Brown <neilb@suse.de>
* | Merge branch 'acpica' of ↵Linus Torvalds2010-03-0116-59/+102
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: replace acpi_integer by u64 ACPICA: Update version to 20100121. ACPICA: Remove unused uint32_struct type ACPICA: Disassembler: Remove obsolete "Integer64" field in parse object ACPICA: Remove obsolete ACPI_INTEGER (acpi_integer) type ACPICA: Predefined name repair: fix NULL package elements ACPICA: AcpiGetDevices: Eliminate unnecessary _STA calls ACPICA: Update all ACPICA copyrights and signons to 2010 ACPICA: Update for new gcc-4 warning options
| * | ACPI: replace acpi_integer by u64Lin Ming2010-01-282-24/+24
| | | | | | | | | | | | | | | | | | | | | | | | acpi_integer is now obsolete and removed from the ACPICA code base, replaced by u64. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | ACPICA: Update version to 20100121.Bob Moore2010-01-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Version 20100121. 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>
| * | ACPICA: Remove unused uint32_struct typeBob Moore2010-01-221-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | This type is not used in ACPICA and thus removed. 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>
| * | ACPICA: Remove obsolete ACPI_INTEGER (acpi_integer) typeBob Moore2010-01-223-14/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This type was introduced as the code was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with 64-bit integers). It is now obsolete and this change removes it from the ACPICA code base, replaced by u64. The original typedef has been retained for now for compatibility with existing device driver 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>
| * | ACPICA: Update all ACPICA copyrights and signons to 2010Bob Moore2010-01-2214-13/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add 2010 copyright to all module headers and signons, including the Linux header. This affects virtually every file in the ACPICA core subsystem, iASL compiler, and all utilities. 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>
| * | ACPICA: Update for new gcc-4 warning optionsBob Moore2010-01-221-2/+2
| |/ | | | | | | | | | | | | | | | | | | | | Added several new options for the gcc-4 generation, and updated the source accordingly. This includes some code restructuring to eliminate unreachable code, elimination of some gotos, elimination of unused return values, and some additional casting. 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>
* | x86/PCI: use host bridge _CRS info by default on 2008 and newer machinesBjorn Helgaas2010-02-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The main benefit of using ACPI host bridge window information is that we can do better resource allocation in systems with multiple host bridges, e.g., http://bugzilla.kernel.org/show_bug.cgi?id=14183 Sometimes we need _CRS information even if we only have one host bridge, e.g., https://bugs.launchpad.net/ubuntu/+source/linux/+bug/341681 Most of these systems are relatively new, so this patch turns on "pci=use_crs" only on machines with a BIOS date of 2008 or newer. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | PCI / ACPI / PM: Platform support for PCI PME wake-upRafael J. Wysocki2010-02-231-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although the majority of PCI devices can generate PMEs that in principle may be used to wake up devices suspended at run time, platform support is generally necessary to convert PMEs into wake-up events that can be delivered to the kernel. If ACPI is used for this purpose, PME signals generated by a PCI device will trigger the ACPI GPE associated with the device to generate an ACPI wake-up event that we can set up a handler for, provided that everything is configured correctly. Unfortunately, the subset of PCI devices that have GPEs associated with them is quite limited. The devices without dedicated GPEs have to rely on the GPEs associated with other devices (in the majority of cases their upstream bridges and, possibly, the root bridge) to generate ACPI wake-up events in response to PME signals from them. Add ACPI platform support for PCI PME wake-up: o Add a framework making is possible to use ACPI system notify handlers for run-time PM. o Add new PCI platform callback ->run_wake() to struct pci_platform_pm_ops allowing us to enable/disable the platform to generate wake-up events for given device. Implemet this callback for the ACPI platform. o Define ACPI wake-up handlers for PCI devices and PCI root buses and make the PCI-ACPI binding code register wake-up notifiers for all PCI devices present in the ACPI tables. o Add function pci_dev_run_wake() which can be used by PCI drivers to check if given device is capable of generating wake-up events at run time. Developed in cooperation with Matthew Garrett <mjg@redhat.com>. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | ACPI / PM: Add more run-time wake-up fieldsRafael J. Wysocki2010-02-231-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Use the run_wake flag to mark all devices for which run-time wake-up events may be generated by the platform. Introduce a new wake-up flag, always_enabled, for marking devices that should be permanently enabled to generate run-time events. Also, introduce a reference counter for run-wake devices and a function that will initialize all of the run-time wake-up fields for given device. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | ACPI: Use GPE reference counting to support shared GPEsRafael J. Wysocki2010-02-232-21/+13
|/ | | | | | | | | | | | | | | | | | | | | ACPI GPEs may map to multiple devices. The current GPE interface only provides a mechanism for enabling and disabling GPEs, making it difficult to change the state of GPEs at runtime without extensive cooperation between devices. Add an API to allow devices to indicate whether or not they want their device's GPE to be enabled for both runtime and wakeup events. Remove the old GPE type handling entirely, which gets rid of various quirks, like the implicit disabling with GPE type setting. This requires a small amount of rework in order to ensure that non-wake GPEs are enabled by default to preserve existing behaviour. Based on patches from Matthew Garrett <mjg@redhat.com>. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* Merge branch 'bugzilla-14483' into releaseLen Brown2010-01-201-1/+1
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| * ACPI: don't cond_resched if irq is disabledXiaotian Feng2010-01-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 8bd108d adds preemption point after each opcode parse, then a sleeping function called from invalid context bug was founded during suspend/resume stage. this was fixed in commit abe1dfa by don't cond_resched when irq_disabled. But recent commit 138d156 changes the behaviour to don't cond_resched when in_atomic. This makes the sleeping function called from invalid context bug happen again, which is reported in http://lkml.org/lkml/2009/12/1/371. This patch also fixes http://bugzilla.kernel.org/show_bug.cgi?id=14483 Reported-and-bisected-by: Larry Finger <Larry.Finger@lwfinger.net> Reported-and-bisected-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI: processor: remove _PDC object list from struct acpi_processorAlex Chiang2009-12-221-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | When we call _PDC, we get a handle to the processor, allocate the object list buffer as needed, and free it immediately after calling _PDC. There's no need to drag around this object list with us everywhere else, so let's just get rid of it. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI: processor: change acpi_processor_set_pdc() interfaceAlex Chiang2009-12-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When calling _PDC, we really only need the handle to the processor to call the method; we don't look at any other parts of the struct acpi_processor * given to us. In the early path, when we walk the namespace, we are given the handle directly, so just pass it through to acpi_processor_set_pdc() without stuffing it into a wasteful struct acpi_processor allocated on the stack each time This saves 2834 bytes of stack. Update the interface accordingly. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI: processor: unify arch_acpi_processor_cleanup_pdcAlex Chiang2009-12-221-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The x86 and ia64 implementations of the function in $subject are exactly the same. Also, since the arch-specific implementations of setting _PDC have been completely hollowed out, remove the empty shells. Cc: Tony Luck <tony.luck@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI: processor: finish unifying arch_acpi_processor_init_pdc()Alex Chiang2009-12-221-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only thing arch-specific about calling _PDC is what bits get set in the input obj_list buffer. There's no need for several levels of indirection to twiddle those bits. Additionally, since we're just messing around with a buffer, we can simplify the interface; no need to pass around the entire struct acpi_processor * just to get at the buffer. Cc: Tony Luck <tony.luck@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI: processor: call _PDC earlyAlex Chiang2009-12-221-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We discovered that at least one machine (HP Envy), methods in the DSDT attempt to call external methods defined in a dynamically loaded SSDT. Unfortunately, the DSDT methods we are trying to call are part of the EC initialization, which happens very early, and the the dynamic SSDT is only loaded when a processor _PDC method runs much later. This results in namespace lookup errors for the (as of yet) undefined methods. Since Windows doesn't have any issues with this machine, we take it as a hint that they must be evaluating _PDC much earlier than we are. Thus, the proper thing for Linux to do should be to match the Windows implementation more closely. Provide a mechanism to call _PDC before we enable the EC. Doing so loads the dynamic tables, and allows the EC to be enabled correctly. The ACPI processor driver will still evaluate _PDC in its .add() method to cover the hotplug case. Resolves: http://bugzilla.kernel.org/show_bug.cgi?id=14824 Cc: ming.m.lin@intel.com Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'ost' into releaseLen Brown2009-12-161-2/+3
|\ \ | | | | | | | | | | | | | | | | | | Conflicts: include/acpi/processor.h Signed-off-by: Len Brown <len.brown@intel.com>
| * | ACPI: Notify the _PPC evaluation status to the platformZhao Yakui2009-11-061-2/+3
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the ACPI spec(section 8.4.4.3) OSPM should convey the _PPC evaluations status to the platform if there exists the _OST object. The _OST contains two arguments: The first is the PERFORMANCE notificatin event. The second is the status of _PPC object. OSPM will convey the _PPC evaluation status to the platform. Of course when the module parameter of "ignore_ppc" is added, OSPM won't evaluate the _PPC object. But it will call the _OST object. At the same time the _OST object will be evaluated only when the PERFORMANCE notification event is received. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'acpica' into releaseLen Brown2009-12-162-4/+6
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| * | ACPICA: Update version to 20091214Bob Moore2009-12-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Version 20091214. 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>
| * | ACPICA: Remove messages if predefined repair(s) are successfulBob Moore2009-12-151-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Repair mechanism was considered too wordy. Now, messages are only unconditionally emitted if the return object cannot be repaired. Existing messages for successful repairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827. http://www.acpica.org/bugzilla/show_bug.cgi?id=827 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>
* | | Merge branch 'next' of ↵Linus Torvalds2009-12-121-0/+6
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [ACPI/CPUFREQ] Introduce bios_limit per cpu cpufreq sysfs interface [CPUFREQ] make internal cpufreq_add_dev_* static [CPUFREQ] use an enum for speedstep processor identification [CPUFREQ] Document units for transition latency [CPUFREQ] Use global sysfs cpufreq structure for conservative governor tunings [CPUFREQ] Documentation: ABI: /sys/devices/system/cpu/cpu#/cpufreq/ [CPUFREQ] powernow-k6: set transition latency value so ondemand governor can be used [CPUFREQ] cpumask: don't put a cpumask on the stack in x86...cpufreq/powernow-k8.c
| * | | [ACPI/CPUFREQ] Introduce bios_limit per cpu cpufreq sysfs interfaceThomas Renninger2009-11-241-0/+6
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This interface is mainly intended (and implemented) for ACPI _PPC BIOS frequency limitations, but other cpufreq drivers can also use it for similar use-cases. Why is this needed: Currently it's not obvious why cpufreq got limited. People see cpufreq/scaling_max_freq reduced, but this could have happened by: - any userspace prog writing to scaling_max_freq - thermal limitations - hardware (_PPC in ACPI case) limitiations Therefore export bios_limit (in kHz) to: - Point the user that it's the BIOS (broken or intended) which limits frequency - Export it as a sysfs interface for userspace progs. While this was a rarely used feature on laptops, there will appear more and more server implemenations providing "Green IT" features like allowing the service processor to limit the frequency. People want to know about HW/BIOS frequency limitations. All ACPI P-state driven cpufreq drivers are covered with this patch: - powernow-k8 - powernow-k7 - acpi-cpufreq Tested with a patched DSDT which limits the first two cores (_PPC returns 1) via _PPC, exposed by bios_limit: # echo 2200000 >cpu2/cpufreq/scaling_max_freq # cat cpu*/cpufreq/scaling_max_freq 2600000 2600000 2200000 2200000 # #scaling_max_freq shows general user/thermal/BIOS limitations # cat cpu*/cpufreq/bios_limit 2600000 2600000 2800000 2800000 # #bios_limit only shows the HW/BIOS limitation CC: Pallipadi Venkatesh <venkatesh.pallipadi@intel.com> CC: Len Brown <lenb@kernel.org> CC: davej@codemonkey.org.uk CC: linux@dominikbrodowski.net Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Dave Jones <davej@redhat.com>
* | | Merge branch 'linux-next' of ↵Linus Torvalds2009-12-111-0/+12
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (109 commits) PCI: fix coding style issue in pci_save_state() PCI: add pci_request_acs PCI: fix BUG_ON triggered by logical PCIe root port removal PCI: remove ifdefed pci_cleanup_aer_correct_error_status PCI: unconditionally clear AER uncorr status register during cleanup x86/PCI: claim SR-IOV BARs in pcibios_allocate_resource PCI: portdrv: remove redundant definitions PCI: portdrv: remove unnecessary struct pcie_port_data PCI: portdrv: minor cleanup for pcie_port_device_register PCI: portdrv: add missing irq cleanup PCI: portdrv: enable device before irq initialization PCI: portdrv: cleanup service irqs initialization PCI: portdrv: check capabilities first PCI: portdrv: move PME capability check PCI: portdrv: remove redundant pcie type calculation PCI: portdrv: cleanup pcie_device registration PCI: portdrv: remove redundant pcie_port_device_probe PCI: Always set prefetchable base/limit upper32 registers PCI: read-modify-write the pcie device control register when initiating pcie flr PCI: show dma_mask bits in /sys ... Fixed up conflicts in: arch/x86/kernel/amd_iommu_init.c drivers/pci/dmar.c drivers/pci/hotplug/acpiphp_glue.c
| * | PCI: PCIe AER: honor ACPI HEST FIRMWARE FIRST modeMatt Domsch2009-11-041-0/+12
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Feedback from Hidetoshi Seto and Kenji Kaneshige incorporated. This correctly handles PCI-X bridges, PCIe root ports and endpoints, and prints debug messages when invalid/reserved types are found in the HEST. PCI devices not in domain/segment 0 are not represented in HEST, thus will be ignored. Today, the PCIe Advanced Error Reporting (AER) driver attaches itself to every PCIe root port for which BIOS reports it should, via ACPI _OSC. However, _OSC alone is insufficient for newer BIOSes. Part of ACPI 4.0 is the new APEI (ACPI Platform Error Interfaces) which is a way for OS and BIOS to handshake over which errors for which components each will handle. One table in ACPI 4.0 is the Hardware Error Source Table (HEST), where BIOS can define that errors for certain PCIe devices (or all devices), should be handled by BIOS ("Firmware First mode"), rather than be handled by the OS. Dell PowerEdge 11G server BIOS defines Firmware First mode in HEST, so that it may manage such errors, log them to the System Event Log, and possibly take other actions. The aer driver should honor this, and not attach itself to devices noted as such. Furthermore, Kenji Kaneshige reminded us to disallow changing the AER registers when respecting Firmware First mode. Platform firmware is expected to manage these, and if changes to them are allowed, it could break that firmware's behavior. The HEST parsing code may be replaced in the future by a more feature-rich implementation. This patch provides the minimum needed to prevent breakage until that implementation is available. Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | ACPICA: Update version to 20091112.Bob Moore2009-11-251-1/+1
| | | | | | | | | | | | | | | | Version 20091112. 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>
* | ACPICA: Add post-order callback to acpi_walk_namespaceLin Ming2009-11-251-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing interface only has a pre-order callback. This change adds an additional parameter for a post-order callback which will be more useful for bus scans. ACPICA BZ 779. Also update the external calls to acpi_walk_namespace. http://www.acpica.org/bugzilla/show_bug.cgi?id=779 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>
* | ACPICA: Update version to 20091013Bob Moore2009-11-251-1/+1
|/ | | | | | | | Version 20091013. 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>
* ACPI: remove acpi_device_uid() and related stuffBjorn Helgaas2009-09-251-3/+1
| | | | | | | Nobody uses acpi_device_uid(), so this patch removes it. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: remove acpi_device.flags.hardware_idBjorn Helgaas2009-09-251-2/+1
| | | | | | | | | Every acpi_device has at least one ID (if there's no _HID or _CID, we give it a synthetic or default ID). So there's no longer a need to check whether an ID exists; we can just use it. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: remove acpi_device.flags.compatible_idsBjorn Helgaas2009-09-251-2/+1
| | | | | | | | We now keep a single list of IDs that includes both the _HID and any _CIDs. We no longer need to keep track of whether the device has a _CID. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: maintain a single list of _HID and _CID IDsBjorn Helgaas2009-09-251-3/+7
| | | | | | | | | | | There's no need to treat _HID and _CID differently. Keeping them in a single list makes code that uses the IDs a little simpler because it can just traverse the list rather than checking "do we have a HID?", "do we have any CIDs?" 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>
* ACPI: add acpi_bus_get_status_handle()Bjorn Helgaas2009-09-251-0/+2
| | | | | | | | | | | | Add acpi_bus_get_status_handle() so we can get the status of a namespace object before building a struct acpi_device. This removes a use of "device->flags.dynamic_status", a cached indicator of whether _STA exists. It seems simpler and more reliable to just evaluate _STA and catch AE_NOT_FOUND errors. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: identify device tree root by null parent pointer, not ACPI_BUS_TYPEBjorn Helgaas2009-09-251-1/+0
| | | | | | | | | | | | | We can identify the root of the ACPI device tree by the fact that it has no parent. This is simpler than passing around ACPI_BUS_TYPE_SYSTEM and will help remove special treatment of the device tree root. Currently, we add the root by hand with ACPI_BUS_TYPE_SYSTEM. If we traverse the tree treating the root as just another device and use acpi_get_type(), the root shows up as ACPI_TYPE_DEVICE. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: save device_type in acpi_deviceBjorn Helgaas2009-09-251-1/+2
| | | | | | | | | | | | | Most uses of the ACPI bus device_type (ACPI_BUS_TYPE_DEVICE, ACPI_BUS_TYPE_POWER, etc) are during device initialization, but we do need it later for notify handler installation, since that is different for fixed hardware devices vs. namespace devices. This patch saves the device_type in the acpi_device structure, so we can check that rather than comparing against the _HID string. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'drm-intel-next' of ↵Linus Torvalds2009-09-241-0/+25
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (57 commits) drm/i915: Handle ERESTARTSYS during page fault drm/i915: Warn before mmaping a purgeable buffer. drm/i915: Track purged state. drm/i915: Remove eviction debug spam drm/i915: Immediately discard any backing storage for uneeded objects drm/i915: Do not mis-classify clean objects as purgeable drm/i915: Whitespace correction for madv drm/i915: BUG_ON page refleak during unbind drm/i915: Search harder for a reusable object drm/i915: Clean up evict from list. drm/i915: Add tracepoints drm/i915: framebuffer compression for GM45+ drm/i915: split display functions by chip type drm/i915: Skip the sanity checks if the current relocation is valid drm/i915: Check that the relocation points to within the target drm/i915: correct FBC update when pipe base update occurs drm/i915: blacklist Acer AspireOne lid status ACPI: make ACPI button funcs no-ops if not built in drm/i915: prevent FIFO calculation overflows on 32 bits with high dotclocks drm/i915: intel_display.c handle latency variable efficiently ... Fix up trivial conflicts in drivers/gpu/drm/i915/{i915_dma.c|i915_drv.h}
| * ACPI: make ACPI button funcs no-ops if not built inJesse Barnes2009-09-171-0/+15
| | | | | | | | | | | | | | | | | | Yakui pointed out that we don't properly no-op the ACPI button routines if the button driver isn't built in. This will cause problems if ACPI is disabled, so provide stub functions in that case. Reported-by: ykzhao <yakui.zhao@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * ACPI button: provide lid status functionsJesse Barnes2009-09-111-0/+10
| | | | | | | | | | | | | | | | | | | | | | Some drivers need to know when a lid event occurs and get the current status. This can be useful for when a platform firmware clobbers some hardware state at lid time, and a driver needs to restore things when the lid is opened again. Acked-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
* | Merge branch 'release' of ↵Linus Torvalds2009-09-238-740/+1203
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (119 commits) ACPI: don't pass handle for fixed hardware notifications ACPI: remove null pointer checks in deferred execution path ACPI: simplify deferred execution path acerhdf: additional BIOS versions acerhdf: convert to dev_pm_ops acerhdf: fix fan control for AOA150 model thermal: add missing Kconfig dependency acpi: switch /proc/acpi/{debug_layer,debug_level} to seq_file hp-wmi: fix rfkill memory leak on unload ACPI: remove unnecessary #ifdef CONFIG_DMI ACPI: linux/acpi.h should not include linux/dmi.h hwmon driver for ACPI 4.0 power meters topstar-laptop: add new driver for hotkeys support on Topstar N01 thinkpad_acpi: fix rfkill memory leak on unload thinkpad-acpi: report brightness events when required thinkpad-acpi: don't poll by default any of the reserved hotkeys thinkpad-acpi: Fix procfs hotkey reset command thinkpad-acpi: deprecate hotkey_bios_mask thinkpad-acpi: hotkey poll fixes thinkpad-acpi: be more strict when detecting a ThinkPad ...
| * \ Merge branch 'preempt' into releaseLen Brown2009-09-191-2/+2
| |\ \
| | * | ACPICA: Don't switch task then not allowedAlexey Starikovskiy2009-08-291-2/+2
| | |/ | | | | | | | | | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| * | Merge branch 'bugzilla-13620' into releaseLen Brown2009-09-191-0/+3
| |\ \
| | * | ACPICA: fix leak of acpi_os_validate_addressLin Ming2009-08-271-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=13620 If the dynamic region is created and added to resource list over and over again, it has the potential to be a memory leak by growing the list every time. This patch fixes the memory leak, as below 1) add a new field "count" to struct acpi_res_list. When inserting, if the region(addr, len) is already in the resource list, we just increase "count", otherwise, the region is inserted with count=1. When deleting, the "count" is decreased, if it's decreased to 0, the region is deleted from the resource list. With "count", the region with same address and length can only be inserted to the resource list once, so prevent potential memory leak. 2) add a new function acpi_os_invalidate_address, which is called when region is deleted. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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