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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 ...
2012-01-17ACPI, Record ACPI NVS regionsHuang Ying
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>
2011-12-05PCI/ACPI: Make acpiphp ignore root bridges using SHPC native hotplugRafael J. Wysocki
If the kernel has requested control of the SHPC native hotplug feature for a given root bridge, the acpiphp driver should not try to handle that root bridge and it should leave it to shpchp. Failing to do so causes problems to happen if shpchp is loaded and unloaded before loading acpiphp (ACPI-based hotplug won't work in that case anyway). To address this issue make find_root_bridges() ignore PCI root bridges with SHPC native hotplug enabled and make add_bridge() return error code if SHPC native hotplug is enabled for the given root bridge. This causes acpiphp to refuse to load if SHPC native hotplug is enabled for all root bridges and to refuse binding to the root bridges with SHPC native hotplug enabled. Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> 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
2011-08-02ACPI: remove NID_INVALDavid Rientjes
b552a8c56db8 ("ACPI: remove NID_INVAL") removed the left over uses of NID_INVAL, but didn't actually remove the definition. Remove it. Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2011-07-13ACPI, APEI, Add APEI bit support in generic _OSC callHuang Ying
In APEI firmware first mode, hardware error is reported by hardware to firmware firstly, then firmware reports the error to Linux in a GHES error record via POLL/SCI/IRQ/NMI etc. This may result in some issues if OS has no full APEI support. So some firmware implementation will work in a back-compatible mode by default. Where firmware will only notify OS in old-fashion, without GHES record. For example, for a fatal hardware error, only NMI is signaled, no GHES record. To gain full APEI power on these machines, APEI bit in generic _OSC call can be specified to tell firmware that Linux has full APEI support. This patch adds the APEI bit support in generic _OSC call. 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>
2011-04-01ACPI EC: remove dead codeThomas Renninger
static void acpi_ec_gpe_query(void *ec_cxt); -> The function is right above this declaration -> not needed. poll_force is also not used, cleaned up in ec.c and its users: compal-laptop and msi-laptop. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2011-01-20ACPI: Introduce acpi_os_ioremap()Rafael J. Wysocki
Commit ca9b600be38c ("ACPI / PM: Make suspend_nvs_save() use acpi_os_map_memory()") attempted to prevent the code in osl.c and nvs.c from using different ioremap() variants by making the latter use acpi_os_map_memory() for mapping the NVS pages. However, that also requires acpi_os_unmap_memory() to be used for unmapping them, which causes synchronize_rcu() to be executed many times in a row unnecessarily and introduces substantial delays during resume on some systems. Instead of using acpi_os_map_memory() for mapping the NVS pages in nvs.c introduce acpi_os_ioremap() calling ioremap_cache() and make the code in both osl.c and nvs.c use it. Reported-by: Jeff Chua <jeff.chua.linux@gmail.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-12ACPI / PM: Fix build problems for !CONFIG_ACPI related to NVS reworkRafael J. Wysocki
The recent rework of the NVS saving/restoring code introduced two build issues for !CONFIG_ACPI, a warning in drivers/acpi/internal.h and an error in arch/x86/kernel/e820.c. Fix them by providing suitable static inline definitions of the relevant functions. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-01-07PM / ACPI: Move NVS saving and restoring code to drivers/acpiRafael J. Wysocki
The saving of the ACPI NVS area during hibernation and suspend and restoring it during the subsequent resume is entirely specific to ACPI, so move it to drivers/acpi and drop the CONFIG_SUSPEND_NVS configuration option which is redundant. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2010-12-11acpi: fix _OSI string setup regressionLin Ming
commit b0ed7a91(ACPICA/ACPI: Add new host interfaces for _OSI suppor) introduced a regression that _OSI string setup fails. There are 2 paths to setup _OSI string. DMI: acpi_dmi_osi_linux -> set_osi_linux -> acpi_osi_setup -> copy _OSI string to osi_setup_string Boot command line: acpi_osi_setup -> copy _OSI string to osi_setup_string Later, acpi_osi_setup_late will be called to handle osi_setup_string. If _OSI string is "Linux" or "!Linux", then the call path is, acpi_osi_setup_late -> acpi_cmdline_osi_linux -> set_osi_linux -> acpi_osi_setup -> copy _OSI string to osi_setup_string This actually never installs _OSI string(acpi_install_interface not called), but just copy the _OSI string to osi_setup_string. This patch fixes the regression. Reported-and-tested-by: Lukas Hejtmanek <xhejtman@ics.muni.cz> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2010-10-26Merge branch 'misc' into releaseLen Brown
2010-10-24ACPI: Add interfaces for ioremapping/iounmapping ACPI registersMyron Stowe
Add remapping and unmapping interfaces for ACPI registers that are backed by memory mapped I/O (MMIO). These interfaces, along with the MMIO remapping list, enable accesses of such registers from within interrupt context. 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@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2010-10-19ACPI: remove dead codeStephen Hemminger
Found by running make namespacecheck on linux-next Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Len Brown <len.brown@intel.com>
2010-08-24ACPI/PCI: Negotiate _OSC control bits before requesting them Rafael J. Wysocki
It is possible that the BIOS will not grant control of all _OSC features requested via acpi_pci_osc_control_set(), so it is recommended to negotiate the final set of _OSC features with the query flag set before calling _OSC to request control of these features. To implement it, rework acpi_pci_osc_control_set() so that the caller can specify the mask of _OSC control bits to negotiate and the mask of _OSC control bits that are absolutely necessary to it. Then, acpi_pci_osc_control_set() will run _OSC queries in a loop until the mask of _OSC control bits returned by the BIOS is equal to the mask passed to it. Also, before running the _OSC request acpi_pci_osc_control_set() will check if the caller's required control bits are present in the final mask. Using this mechanism we will be able to avoid situations in which the BIOS doesn't grant control of certain _OSC features, because they depend on some other _OSC features that have not been requested. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-07-24ACPI / Sleep: Allow the NVS saving to be skipped during suspend to RAMRafael J. Wysocki
Commit 2a6b69765ad794389f2fc3e14a0afa1a995221c2 (ACPI: Store NVS state even when entering suspend to RAM) caused the ACPI suspend code save the NVS area during suspend and restore it during resume unconditionally, although it is known that some systems need to use acpi_sleep=s4_nonvs for hibernation to work. To allow the affected systems to avoid saving and restoring the NVS area during suspend to RAM and resume, introduce kernel command line option acpi_sleep=nonvs and make acpi_sleep=s4_nonvs work as its alias temporarily (add acpi_sleep=s4_nonvs to the feature removal file). Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16396 . Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-and-tested-by: tomas m <tmezzadra@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2010-05-28Merge 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: (27 commits) ACPI: Don't let acpi_pad needlessly mark TSC unstable drivers/acpi/sleep.h: Checkpatch cleanup ACPI: Minor cleanup eliminating redundant PMTIMER_TICKS to NS conversion ACPI: delete unused c-state promotion/demotion data strucutures ACPI: video: fix acpi_backlight=video ACPI: EC: Use kmemdup drivers/acpi: use kasprintf ACPI, APEI, EINJ injection parameters support Add x64 support to debugfs ACPI, APEI, Use ERST for persistent storage of MCE ACPI, APEI, Error Record Serialization Table (ERST) support ACPI, APEI, Generic Hardware Error Source memory error support ACPI, APEI, UEFI Common Platform Error Record (CPER) header Unified UUID/GUID definition ACPI Hardware Error Device (PNP0C33) support ACPI, APEI, PCIE AER, use general HEST table parsing in AER firmware_first setup ACPI, APEI, Document for APEI ACPI, APEI, EINJ support ACPI, APEI, HEST table parsing ACPI, APEI, APEI supporting infrastructure ...
2010-05-27hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforcedJean Delvare
When the user passes the kernel parameter acpi_enforce_resources=lax, the ACPI resources are no longer protected, so a native driver can make use of them. In that case, we do not want the asus_atk0110 to be loaded. Unfortunately, this driver loads automatically due to its MODULE_DEVICE_TABLE, so the user ends up with two drivers loaded for the same device - this is bad. So I suggest that we prevent the asus_atk0110 driver from loading if acpi_enforce_resources=lax. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Luca Tettamanti <kronos.it@gmail.com> Cc: Len Brown <lenb@kernel.org>
2010-05-12ACPI: Unconditionally set SCI_EN on resumeMatthew Garrett
The ACPI spec tells us that the firmware will reenable SCI_EN on resume. Reality disagrees in some cases. The ACPI spec tells us that the only way to set SCI_EN is via an SMM call. https://bugzilla.kernel.org/show_bug.cgi?id=13745 shows us that doing so may break machines. Tracing the ACPI calls made by Windows shows that it unconditionally sets SCI_EN on resume with a direct register write, and therefore the overwhelming probability is that everything is fine with this behaviour. Signed-off-by: Matthew Garrett <mjg@redhat.com> Tested-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2010-05-04x86, acpi/irq: Teach acpi_get_override_irq to take a gsi not an isa_irqEric W. Biederman
In perverse acpi implementations the isa irqs are not identity mapped to the first 16 gsi. Furthermore at least the extended interrupt resource capability may return gsi's and not isa irqs. So since what we get from acpi is a gsi teach acpi_get_overrride_irq to operate on a gsi instead of an isa_irq. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> LKML-Reference: <1269936436-7039-2-git-send-email-ebiederm@xmission.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-05-04x86, acpi/irq: Introduce apci_isa_irq_to_gsiEric W. Biederman
There are a number of cases where the current code makes the assumption that isa irqs identity map to the first 16 acpi global system intereupts. In most instances that assumption is correct as that is the required behaviour in dual i8259 mode and the default behavior in ioapic mode. However there are some systems out there that take advantage of acpis interrupt remapping for the isa irqs to have a completely different mapping of isa_irq to gsi. Introduce acpi_isa_irq_to_gsi to perform this mapping explicitly in the code that needs it. Initially this will be just the current assumed identity mapping to ensure it's introduction does not cause regressions. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> LKML-Reference: <1269936436-7039-1-git-send-email-ebiederm@xmission.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-06x86, ACPI: delete acpi_boot_table_init() return valueLen Brown
cleanup only. setup_arch(), doesn't care care if ACPI initialization succeeded or failed, so delete acpi_boot_table_init()'s return value. Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-30ACPI: introduce kernel parameter acpi_sleep=sci_force_enableZhang Rui
Introduce kernel parameter acpi_sleep=sci_force_enable some laptop requires SCI_EN being set directly on resume, or else they hung somewhere in the resume code path. We already have a blacklist for these laptops but we still need this option, especially when debugging some suspend/resume problems, in case there are systems that need this workaround and are not yet in the blacklist. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-16Merge branch 'misc-2.6.33' into releaseLen Brown
2009-12-16ACPI: Add platform-wide _OSC support.Shaohua Li
Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-16ACPI: cleanup pci_root _OSC code.Shaohua Li
Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-16ACPI: Add a generic API for _OSC -v2Shaohua Li
v2->v1: .improve debug info as suggedted by Bjorn,Kenji .API is using uuid string as suggested by Alexey Add an API to execute _OSC. A lot of devices can have this method, so add a generic API. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-09ACPI: add const to acpi_check_resource_conflict()Jean Delvare
acpi_check_resource_conflict() doesn't change the resource it operates on, so the res parameter can be marked const. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-19Merge branch 'misc-2.6.32' into releaseLen Brown
Conflicts: drivers/pci/dmar.c Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-19ACPI: remove unnecessary #ifdef CONFIG_DMILen Brown
acpi_osi_setup() does not depend on CONFIG_DMI acpi_dmi_osi_linux()'s definition doesn't depend on CONFIG_DMI either Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-19ACPI: linux/acpi.h should not include linux/dmi.hLen Brown
users of acpi.h that need dmi.h should include it directly. Signed-off-by: Len Brown <len.brown@intel.com>
2009-08-28ACPI: Handle CONFIG_ACPI=n better from linux/acpi.hFeng Tang
linux/acpi.h is the top level header for interfacing with the ACPI sub-system, so acpi_disabled should be up there instead of down in asm/acpi.h -- particularly since asm/acpi.h doesn't exist for all architectures. Same story for acpi_table_parse(), which is a top-level API to Linux/ACPI. This is necessary for building some code that used to always depend on CONFIG_ACPI=y, but will soon also need to build with CONFIG_ACPI=n. Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-24Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', ↵Len Brown
'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release
2009-06-12ACPI: move declaration acpi_early_init() to acpi.hLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-12ACPI, PCI, x86: move MCFG parsing routine from ACPI to PCI fileLen Brown
Move arch/x86/kernel/acpi/boot.c: acpi_parse_mcfg() to arch/x86/pci/mmconfig-shared.c: pci_parse_mcfg() where it is used, and make it static. Move associated globals and helper routine with it. No functional change. This code move is in preparation for SFI support, which will allow the PCI code to find the MCFG table on systems which do not support ACPI. Signed-off-by: Len Brown <len.brown@intel.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-04-28irq: change ACPI GSI APIs to also take a device argumentYinghai Lu
We want to use dev_to_node() later on, to be aware of the 'home node' of the GSI in question. [ Impact: cleanup, prepare the IRQ code to be more NUMA aware ] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Len Brown <lenb@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Len Brown <lenb@kernel.org> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-acpi@vger.kernel.org Cc: linux-ia64@vger.kernel.org LKML-Reference: <49F65560.20904@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-21ACPI: add /sys/firmware/acpi/interrupts/sci_not counterLen Brown
This counter may prove useful in debugging some spurious interrupt issues seen in the field. Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05Merge branch 'linus' into releaseLen Brown
Conflicts: arch/x86/kernel/cpu/cpufreq/longhaul.c Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03x86, ACPI: add support for x2apic ACPI extensionsSuresh Siddha
All logical processors with APIC ID values of 255 and greater will have their APIC reported through Processor X2APIC structure (type-9 entry type) and all logical processors with APIC ID less than 255 will have their APIC reported through legacy Processor Local APIC (type-0 entry type) only. This is the same case even for NMI structure reporting. The Processor X2APIC Affinity structure provides the association between the X2APIC ID of a logical processor and the proximity domain to which the logical processor belongs. For OSPM, Procssor IDs outside the 0-254 range are to be declared as Device() objects in the ACPI namespace. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-01Merge branch 'linux-next' of ↵Linus Torvalds
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: (88 commits) PCI: fix HT MSI mapping fix PCI: don't enable too much HT MSI mapping x86/PCI: make pci=lastbus=255 work when acpi is on PCI: save and restore PCIe 2.0 registers PCI: update fakephp for bus_id removal PCI: fix kernel oops on bridge removal PCI: fix conflict between SR-IOV and config space sizing powerpc/PCI: include pci.h in powerpc MSI implementation PCI Hotplug: schedule fakephp for feature removal PCI Hotplug: rename legacy_fakephp to fakephp PCI Hotplug: restore fakephp interface with complete reimplementation PCI: Introduce /sys/bus/pci/devices/.../rescan PCI: Introduce /sys/bus/pci/devices/.../remove PCI: Introduce /sys/bus/pci/rescan PCI: Introduce pci_rescan_bus() PCI: do not enable bridges more than once PCI: do not initialize bridges more than once PCI: always scan child buses PCI: pci_scan_slot() returns newly found devices PCI: don't scan existing devices ... Fix trivial append-only conflict in Documentation/feature-removal-schedule.txt
2009-03-19PCI/ACPI: rename pci_osc_control_set()Kenji Kaneshige
- Rename pci_osc_control_set() to acpi_pci_osc_control_set() according to the other API names in drivers/acpi/pci_root.c. - Move _OSC related definitions to include/linux/acpi.h because _OSC related API is implemented in drivers/acpi/pci_root.c now. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Reviewed-by: Andrew Patterson <andrew.patterson@hp.com> Tested-by: Andrew Patterson <andrew.patterson@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-02-16[IA64] fix __apci_unmap_tableYinghai Lu
Impact: fix build error to fix: tip/arch/ia64/kernel/acpi.c:203: error: conflicting types for '__acpi_unmap_table' tip/include/linux/acpi.h:82: error: previous declaration of '__acpi_unmap_table' was here tip/arch/ia64/kernel/acpi.c:203: error: conflicting types for '__acpi_unmap_table' tip/include/linux/acpi.h:82: error: previous declaration of '__acpi_unmap_table' was here Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-09acpi/x86: introduce __apci_map_table, v4Yinghai Lu
to prevent wrongly overwriting fixmap that still want to use. ACPI used to rely on low mappings being all linearly mapped and grew a habit: it never really unmapped certain kinds of tables after use. This can cause problems - for example the hypothetical case when some spurious access still references it. v2: remove prev_map and prev_size in __apci_map_table v3: let acpi_os_unmap_memory() call early_iounmap too, so remove extral calling to early_acpi_os_unmap_memory v4: fix typo in one acpi_get_table_with_size calling Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-09Merge branch 'simplify_PRT' into releaseLen Brown
Conflicts: drivers/acpi/pci_irq.c Note that this merge disables e1d3a90846b40ad3160bf4b648d36c6badad39ac pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalent Signed-off-by: Len Brown <len.brown@intel.com>
2008-12-30ACPI: PCI: move struct acpi_prt_entry declaration out of public header fileBjorn Helgaas
The struct acpi_prt_entry is used only in pci_irq.c, so there's no need for the declaration to be public. This patch moves it into pci_irq.c. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-12-19ACPI hibernate: Introduce new kernel parameter acpi_sleep=s4_nonvsRafael J. Wysocki
On some machines it may be necessary to disable the saving/restoring of the ACPI NVS memory region during hibernation/resume. For this purpose, introduce new ACPI kernel command line option acpi_sleep=s4_nonvs. Based on a patch by Zhang Rui. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Nigel Cunningham <nigel@tuxonice.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-11Merge branch 'video' into releaseLen Brown
Conflicts: Documentation/kernel-parameters.txt Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-07ACPI video: if no ACPI backlight support, use vendor driversThomas Renninger
If an ACPI graphics device supports backlight brightness functions (cmp. with latest ACPI spec Appendix B), let the ACPI video driver control backlight and switch backlight control off in vendor specific ACPI drivers (asus_acpi, thinkpad_acpi, eeepc, fujitsu_laptop, msi_laptop, sony_laptop, acer-wmi). Currently it is possible to load above drivers and let both poke on the brightness HW registers, the video and vendor specific ACPI drivers -> bad. This patch provides the basic support to check for BIOS capabilities before driver loading time. Driver specific modifications are in separate follow up patches. "acpi_backlight=vendor" Prever vendor driver over ACPI driver for backlight. "acpi_backlight=video" (default) Prever ACPI driver over vendor driver for backlight. 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>
2008-11-06ACPI: remove CONFIG_ACPI_ECBjorn Helgaas
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>
2008-10-10ACPI: remove unused have_arch_parse_sratYinghai Lu
This was a workaround for 32bit numa SRAT processing, and we removed those workarounds, making 32 bit more like 64 bit. HAVE_ARCH_PARSE_SRAT is no longer defined anywhere. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
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