aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/acpi
Commit message (Collapse)AuthorAge
* Merge branch 'release' of ↵Linus Torvalds2012-01-18
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| *-------. Merge branches 'einj', 'intel_idle', 'misc', 'srat' and 'turbostat-ivb' into ↵Len Brown2012-01-18
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | release
| | | | | * | ACPI: Store SRAT table revisionKurt Garloff2012-01-17
| | | | |/ / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | | | * | ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2Thomas Renninger2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | V2: Fix typo: pr->handle -> pr, here: acpi_processor_hotadd_init(pr) This is a very small part taken from patches which afaik are coming from Yunhong Jiang (for a Xen not a Linus repo?). Cleanup only: no functional change. Advantage (beside cleanup) is that other data of the pr (acpi_processor) struct in the acpi_processor_hotadd_init() is needed later, for example a newly introduced flag: pr->flags.need_hotplug_init Signed-off-by: Thomas Renninger <trenn@suse.de> CC: Bjorn Helgaas <bhelgaas@google.com> CC: Jiang, Yunhong <yunhong.jiang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | * | ACPI processor: Remove unneeded cpuidle_unregister_driver callThomas Renninger2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 46bcfad7a819bd17ac4e831b04405152d59784ab registering and unregistering cpuidle is done in processor_idle.c. Unregistering via: acpi_bus_unregister_driver(&acpi_processor_driver) -> acpi_processor_remove() -> acpi_processor_power_exit() Remove not needed cpuidle_unregister_driver() call from acpi_processor_exit Signed-off-by: Thomas Renninger <trenn@suse.de> CC: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | * | ACPI processor: Fix error path, also remove sysdev linkThomas Renninger2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | * | ACPI: processor: fix acpi_get_cpuid for UP processorLin Ming2012-01-17
| | | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For UP processor, it is likely that no _MAT method or MADT table defined. So currently acpi_get_cpuid(...) always return -1 for UP processor. This is wrong. It should return valid value for CPU0. In the other hand, BIOS may define multiple CPU handles even for UP processor, for example Scope (_PR) { Processor (CPU0, 0x00, 0x00000410, 0x06) {} Processor (CPU1, 0x01, 0x00000410, 0x06) {} Processor (CPU2, 0x02, 0x00000410, 0x06) {} Processor (CPU3, 0x03, 0x00000410, 0x06) {} } We should only return valid value for CPU0's acpi handle. And return invalid value for others. http://marc.info/?t=132329819900003&r=1&w=2 Cc: stable@vger.kernel.org Reported-and-tested-by: wallak@free.fr Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * / / acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi specTony Luck2012-01-18
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | Merge branch 'atomicio-remove' into releaseLen Brown2012-01-18
| |\ \ \
| | * | | ACPI APEI: Convert atomicio routinesMyron Stowe2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | APEI needs memory access in interrupt context. The obvious choice is acpi_read(), but originally it couldn't be used in interrupt context because it makes temporary mappings with ioremap(). Therefore, we added drivers/acpi/atomicio.c, which provides: acpi_pre_map_gar() -- ioremap in process context acpi_atomic_read() -- memory access in interrupt context acpi_post_unmap_gar() -- iounmap Later we added acpi_os_map_generic_address() (2971852) and enhanced acpi_read() so it works in interrupt context as long as the address has been previously mapped (620242a). Now this sequence: acpi_os_map_generic_address() -- ioremap in process context acpi_read()/apei_read() -- now OK in interrupt context acpi_os_unmap_generic_address() is equivalent to what atomicio.c provides. This patch introduces apei_read() and apei_write(), which currently are functional equivalents of acpi_read() and acpi_write(). This is mainly proactive, to prevent APEI breakages if acpi_read() and acpi_write() are ever augmented to support the 'bit_offset' field of GAS, as APEI's __apei_exec_write_register() precludes splitting up functionality related to 'bit_offset' and APEI's 'mask' (see its APEI_EXEC_PRESERVE_REGISTER block). With apei_read() and apei_write() in place, usages of atomicio routines are converted to apei_read()/apei_write() and existing calls within osl.c and the CA, based on the re-factoring that was done in an earlier patch series - http://marc.info/?l=linux-acpi&m=128769263327206&w=2: acpi_pre_map_gar() --> acpi_os_map_generic_address() acpi_post_unmap_gar() --> acpi_os_unmap_generic_address() acpi_atomic_read() --> apei_read() acpi_atomic_write() --> apei_write() Note that acpi_read() and acpi_write() currently use 'bit_width' for accessing GARs which seems incorrect. 'bit_width' is the size of the register, while 'access_width' is the size of the access the processor must generate on the bus. The 'access_width' may be larger, for example, if the hardware only supports 32-bit or 64-bit reads. I wanted to minimize any possible impacts with this patch series so I did *not* change this behavior. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI: Export interfaces for ioremapping/iounmapping ACPI registersMyron Stowe2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Export remapping and unmapping interfaces - acpi_os_map_generic_address() and acpi_os_unmap_generic_address() - for ACPI generic registers that are backed by memory mapped I/O (MMIO). The acpi_os_map_generic_address() and acpi_os_unmap_generic_address() declarations may more properly belong in include/acpi/acpiosxf.h next to acpi_os_read_memory() but I believe that would require the ACPI CA making them an official part of the ACPI CA - OS interface. ACPI Generic Address Structure (GAS) reference (ACPI's fixed/generic hardware registers use the GAS format): ACPI Specification, Revision 4.0, Section 5.2.3.1, "Generic Address Structure" Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI: Fix possible alignment issues with GAS 'address' referencesMyron Stowe2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Generic Address Structures (GAS) may reside within ACPI tables which are byte aligned. This patch copies GAS 'address' references to a local variable, which will be naturally aligned, to be used going forward. ACPI Generic Address Structure (GAS) reference: ACPI Specification, Revision 4.0, Section 5.2.3.1, "Generic Address Structure" Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | Merge branch 'apei' into releaseLen Brown2012-01-18
| |\| | |
| | * | | ACPI, APEI, Resolve false conflict between ACPI NVS and APEIHuang Ying2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some firmware will access memory in ACPI NVS region via APEI. That is, instructions in APEI ERST/EINJ table will read/write ACPI NVS region. The original resource conflict checking in APEI code will check memory/ioport accessed by APEI via general resource management mech. But ACPI NVS region is marked as busy already, so that the false resource conflict will prevent APEI ERST/EINJ to work. To fix this, this patch excludes ACPI NVS regions when APEI components request resources. So that they will not conflict with ACPI NVS regions. Reported-and-tested-by: Pavel Ivanov <paivanof@gmail.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, Record ACPI NVS regionsHuang Ying2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some firmware will access memory in ACPI NVS region via APEI. That is, instructions in APEI ERST/EINJ table will read/write ACPI NVS region. The original resource conflict checking in APEI code will check memory/ioport accessed by APEI via general resource management mechanism. But ACPI NVS region is marked as busy already, so that the false resource conflict will prevent APEI ERST/EINJ to work. To fix this, this patch record ACPI NVS regions, so that we can avoid request resources for memory region inside it. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, APEI, EINJ, Refine the fix of resource conflictXiao, Hui2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current fix for resource conflict is to remove the address region <param1 & param2, ~param2+1> from trigger resource, which is highly relies on valid user input. This patch is trying to avoid such potential issues by fetching the exact address region from trigger action table entry. Signed-off-by: Xiao, Hui <hui.xiao@linux.intel.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, APEI, EINJ, Fix resource conflict on some machineHuang Ying2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some APEI firmware implementation will access injected address specified in param1 to trigger the error when injecting memory error. This will cause resource conflict with RAM. On one of our testing machine, if injecting at memory address 0x10000000, the following error will be reported in dmesg: APEI: Can not request iomem region <0000000010000000-0000000010000008> for GARs. This patch removes the injecting memory address range from trigger table resources to avoid conflict. Signed-off-by: Huang Ying <ying.huang@intel.com> Tested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, Add RAM mapping support to ACPI atomic IO supportHuang Ying2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On one of our testing machine, the following EINJ command lines: # echo 0x10000000 > param1 # echo 0xfffffffffffff000 > param2 # echo 0x8 > error_type # echo 1 > error_inject Will get: echo: write error: Input/output error The EIO comes from: rc = apei_exec_pre_map_gars(&trigger_ctx); The root cause is as follow. Normally, ACPI atomic IO support is used to access IO memory. But in EINJ of that machine, it is used to access RAM to trigger the injected error. And the ioremap() called by apei_exec_pre_map_gars() can not map the RAM. This patch add RAM mapping support to ACPI atomic IO support to satisfy EINJ requirement. Signed-off-by: Huang Ying <ying.huang@intel.com> Tested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, APEI, Printk queued error record before panicHuang Ying2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because printk is not safe inside NMI handler, the recoverable error records received in NMI handler will be queued to be printked in a delayed IRQ context via irq_work. If a fatal error occurs after the recoverable error and before the irq_work processed, we lost a error report. To solve the issue, the queued error records are printked in NMI handler if system will go panic. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, APEI, GHES, Distinguish interleaved error report in kernel logHuang Ying2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In most cases, printk only guarantees messages from different printk calling will not be interleaved between each other. But, one APEI GHES hardware error report will involve multiple printk calling, normally each for one line. So it is possible that the hardware error report comes from different generic hardware error source will be interleaved. In this patch, a sequence number is prefixed to each line of error report. So that, even if they are interleaved, they still can be distinguished by the prefixed sequence number. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, APEI, Remove table not found messageHuang Ying2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because APEI tables are optional, these message may confuse users, for example, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/599715 Reported-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, APEI, Print resource errors in conventional formatBjorn Helgaas2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the normal %pR-like format for MMIO and I/O port ranges. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, APEI, GHES: Add PCIe AER recovery supportHuang Ying2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | aer_recover_queue() is called when recoverable PCIe AER errors are notified by firmware to do the recovery work. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | | ACPI, Add 64bit read/write support to atomicio on i386Huang Ying2012-01-17
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no 64bit read/write support in ACPI atomicio because readq/writeq is used to implement 64bit read/write, but readq/writeq is not available on i386. This patch implement 64bit read/write support in atomicio via two readl/writel. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | ACPICA: Update all copyrights to 2012Bob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update all copyrights to 2012. 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 support for region address conflict checkingLin Ming2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | ACPICA: Update for larger ACPI 5 FADT sizeBob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FADT is now larger than 256 bytes, so all FADT offsets must be changed from 8 bits to 16 bits. 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: Clean up MakefileLin Ming2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the various files in alphabetical order to simplify addition of new files. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | ACPI 5.0: Allow _AEI method in walk resourcesZhang Rui2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | _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>
| * | | ACPI 5.0: Add new predefined namesBob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | 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 5.0: New interface, acpi_buffer_to_resourceBob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | ACPI 5.0: New interface, acpi_get_event_resourcesBob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | ACPI 5.0: Support for all new resource descriptorsLin Ming2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | ACPI 5.0: Support for GeneralPurposeIo and GenericSerialBus operation regionBob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | 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 5.0: Implement Connection() and AccessAs() changesBob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | ACPI 5.0: New interfaces to allow driver access to AML mutex objectsLin Ming2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | ACPI 5.0: Implement hardware-reduced optionBob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | ACPI 5.0: Basic support for FADT version 5Bob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | 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: Do not abort table load on invalid space IDBob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ignore an invalid space ID during a table load. Instead, detect it if a control method attempts access - then abort the method. http://www.acpica.org/bugzilla/show_bug.cgi?id=925 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 error msg for Index/Bank field registers out-of-rangeBob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Supplement the exception code with an actual message. Found during ACPICA debugging. 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 error msg for unsupported I/O requests (not 8/16/32 bit length)Bob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Found during ACPICA debugging. 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: Fix to allow region arguments to reference other scopesLin Ming2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow referenced objects to be in a different scope. http://www.acpica.org/bugzilla/show_bug.cgi?id=937 http://marc.info/?l=linux-acpi&m=131636632718222&w=2 ACPI Error: [RAMB] Namespace lookup failure, AE_NOT_FOUND (20110112/psargs-359) ACPI Exception: AE_NOT_FOUND, Could not execute arguments for [RAMW] (Region) (20110112/nsinit-349) Scope (_SB) { Name (RAMB, 0xDF5A1018) OperationRegion (\RAMW, SystemMemory, RAMB, 0x00010000) } For above ASL code, we need to save scope node(\_SB) to lookup the argument node(\_SB.RAMB). Reported-by: Jim Green <student.northwestern@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>
| * | | ACPICA: Update for GCC 4Bob Moore2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes several issues with GCC 4.6 related to the new checks for unused variables. http://www.acpica.org/bugzilla/show_bug.cgi?id=935 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 'acpica-validate-address-regression' into nextLen Brown2012-01-17
| |\ \ \ | | |/ / | |/| |
| | * | ACPICA: Put back the call to acpi_os_validate_addressLin Ming2012-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The call to acpi_os_validate_address in acpi_ds_get_region_arguments was removed by mistake in commit 9ad19ac(ACPICA: Split large dsopcode and dsload.c files). Put it back. Cc: stable@vger.kernel.org # 2.6.38+ Reported-and-bisected-by: Luca Tettamanti <kronos.it@gmail.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | | module_param: make bool parameters really bool (drivers & misc)Rusty Russell2012-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | | | Merge branch 'linux-next' of ↵Linus Torvalds2012-01-11
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits) x86/PCI: Expand the x86_msi_ops to have a restore MSIs. PCI: Increase resource array mask bit size in pcim_iomap_regions() PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT) PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB x86/PCI: amd: factor out MMCONFIG discovery PCI: Enable ATS at the device state restore PCI: msi: fix imbalanced refcount of msi irq sysfs objects PCI: kconfig: English typo in pci/pcie/Kconfig PCI/PM/Runtime: make PCI traces quieter PCI: remove pci_create_bus() xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus() x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented() x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources sparc/PCI: convert to pci_create_root_bus() sh/PCI: convert to pci_scan_root_bus() for correct root bus resources powerpc/PCI: convert to pci_create_root_bus() powerpc/PCI: split PHB part out of pcibios_map_io_space() ... Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due to the same patches being applied in other branches.
| * | | | PCI/PM/Runtime: make PCI traces quieterVincent Palatin2012-01-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the runtime PM is activated on PCI, if a device switches state frequently (e.g. an EHCI controller with autosuspending USB devices connected) the PCI configuration traces might be very verbose in the kernel log. Let's guard those traces with DEBUG condition. Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | | | PCI: Rework ASPM disable codeMatthew Garrett2012-01-06
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now we forcibly clear ASPM state on all devices if the BIOS indicates that the feature isn't supported. Based on the Microsoft presentation "PCI Express In Depth for Windows Vista and Beyond", I'm starting to think that this may be an error. The implication is that unless the platform grants full control via _OSC, Windows will not touch any PCIe features - including ASPM. In that case clearing ASPM state would be an error unless the platform has granted us that control. This patch reworks the ASPM disabling code such that the actual clearing of state is triggered by a successful handoff of PCIe control to the OS. The general ASPM code undergoes some changes in order to ensure that the ability to clear the bits isn't overridden by ASPM having already been disabled. Further, this theoretically now allows for situations where only a subset of PCIe roots hand over control, leaving the others in the BIOS state. It's difficult to know for sure that this is the right thing to do - there's zero public documentation on the interaction between all of these components. But enough vendors enable ASPM on platforms and then set this bit that it seems likely that they're expecting the OS to leave them alone. Measured to save around 5W on an idle Thinkpad X220. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds2012-01-10
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (53 commits) iommu/amd: Set IOTLB invalidation timeout iommu/amd: Init stats for iommu=pt iommu/amd: Remove unnecessary cache flushes in amd_iommu_resume iommu/amd: Add invalidate-context call-back iommu/amd: Add amd_iommu_device_info() function iommu/amd: Adapt IOMMU driver to PCI register name changes iommu/amd: Add invalid_ppr callback iommu/amd: Implement notifiers for IOMMUv2 iommu/amd: Implement IO page-fault handler iommu/amd: Add routines to bind/unbind a pasid iommu/amd: Implement device aquisition code for IOMMUv2 iommu/amd: Add driver stub for AMD IOMMUv2 support iommu/amd: Add stat counter for IOMMUv2 events iommu/amd: Add device errata handling iommu/amd: Add function to get IOMMUv2 domain for pdev iommu/amd: Implement function to send PPR completions iommu/amd: Implement functions to manage GCR3 table iommu/amd: Implement IOMMUv2 TLB flushing routines iommu/amd: Add support for IOMMUv2 domain mode iommu/amd: Add amd_iommu_domain_direct_map function ...
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-15 02:56:32 -0500