Commit Graph

1105 Commits

Author SHA1 Message Date
Linus Torvalds 1c45d9a920 ACPI and power management updates for 3.18-rc2
- Fix for a recent PCI power management change that overlooked
    the fact that some IRQ chips might not be able to configure
    PCIe PME for system wakeup from Lucas Stach.
 
  - Fix for a bug introduced in 3.17 where acpi_device_wakeup()
    is called with a wrong ordering of arguments from Zhang Rui.
 
  - A bunch of intel_pstate driver fixes (all -stable candidates)
    from Dirk Brandewie, Gabriele Mazzotta and Pali Rohár.
 
  - Fixes for a rather long-standing problem with the OOM killer
    and the freezer that frozen processes killed by the OOM do
    not actually release any memory until they are thawed, so
    OOM-killing them is rather pointless, with a couple of
    cleanups on top (Michal Hocko, Cong Wang, Rafael J Wysocki).
 
  - ACPICA update to upstream release 20140926, inlcuding mostly
    cleanups reducing differences between the upstream ACPICA and
    the kernel code, tools changes (acpidump, acpiexec) and
    support for the _DDN object (Bob Moore, Lv Zheng).
 
  - New PM QoS class for memory bandwidth from Tomeu Vizoso.
 
  - Default 32-bit DMA mask for platform devices enumerated by ACPI
    (this change is mostly needed for some drivers development in
    progress targeted at 3.19) from Heikki Krogerus.
 
  - ACPI EC driver cleanups, mostly related to debugging, from
    Lv Zheng.
 
  - cpufreq-dt driver updates from Thomas Petazzoni.
 
  - powernv cpuidle driver update from Preeti U Murthy.
 
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Merge tag 'pm+acpi-3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management updates from Rafael Wysocki:
 "This is material that didn't make it to my 3.18-rc1 pull request for
  various reasons, mostly related to timing and travel (LinuxCon EU /
  LPC) plus a couple of fixes for recent bugs.

  The only really new thing here is the PM QoS class for memory
  bandwidth, but it is simple enough and users of it will be added in
  the next cycle.  One major change in behavior is that platform devices
  enumerated by ACPI will use 32-bit DMA mask by default.  Also included
  is an ACPICA update to a new upstream release, but that's mostly
  cleanups, changes in tools and similar.  The rest is fixes and
  cleanups mostly.

  Specifics:

   - Fix for a recent PCI power management change that overlooked the
     fact that some IRQ chips might not be able to configure PCIe PME
     for system wakeup from Lucas Stach.

   - Fix for a bug introduced in 3.17 where acpi_device_wakeup() is
     called with a wrong ordering of arguments from Zhang Rui.

   - A bunch of intel_pstate driver fixes (all -stable candidates) from
     Dirk Brandewie, Gabriele Mazzotta and Pali Rohár.

   - Fixes for a rather long-standing problem with the OOM killer and
     the freezer that frozen processes killed by the OOM do not actually
     release any memory until they are thawed, so OOM-killing them is
     rather pointless, with a couple of cleanups on top (Michal Hocko,
     Cong Wang, Rafael J Wysocki).

   - ACPICA update to upstream release 20140926, inlcuding mostly
     cleanups reducing differences between the upstream ACPICA and the
     kernel code, tools changes (acpidump, acpiexec) and support for the
     _DDN object (Bob Moore, Lv Zheng).

   - New PM QoS class for memory bandwidth from Tomeu Vizoso.

   - Default 32-bit DMA mask for platform devices enumerated by ACPI
     (this change is mostly needed for some drivers development in
     progress targeted at 3.19) from Heikki Krogerus.

   - ACPI EC driver cleanups, mostly related to debugging, from Lv
     Zheng.

   - cpufreq-dt driver updates from Thomas Petazzoni.

   - powernv cpuidle driver update from Preeti U Murthy"

* tag 'pm+acpi-3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (34 commits)
  intel_pstate: Correct BYT VID values.
  intel_pstate: Fix BYT frequency reporting
  intel_pstate: Don't lose sysfs settings during cpu offline
  cpufreq: intel_pstate: Reflect current no_turbo state correctly
  cpufreq: expose scaling_cur_freq sysfs file for set_policy() drivers
  cpufreq: intel_pstate: Fix setting max_perf_pct in performance policy
  PCI / PM: handle failure to enable wakeup on PCIe PME
  ACPI: invoke acpi_device_wakeup() with correct parameters
  PM / freezer: Clean up code after recent fixes
  PM: convert do_each_thread to for_each_process_thread
  OOM, PM: OOM killed task shouldn't escape PM suspend
  freezer: remove obsolete comments in __thaw_task()
  freezer: Do not freeze tasks killed by OOM killer
  ACPI / platform: provide default DMA mask
  cpuidle: powernv: Populate cpuidle state details by querying the device-tree
  cpufreq: cpufreq-dt: adjust message related to regulators
  cpufreq: cpufreq-dt: extend with platform_data
  cpufreq: allow driver-specific data
  ACPI / EC: Cleanup coding style.
  ACPI / EC: Refine event/query debugging messages.
  ...
2014-10-24 11:29:31 -07:00
Linus Torvalds 8264fce6de Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui:
 "Sorry that I missed the merge window as there is a bug found in the
  last minute, and I have to fix it and wait for the code to be tested
  in linux-next tree for a few days.  Now the buggy patch has been
  dropped entirely from my next branch.  Thus I hope those changes can
  still be merged in 3.18-rc2 as most of them are platform thermal
  driver changes.

  Specifics:

   - introduce ACPI INT340X thermal drivers.

     Newer laptops and tablets may have thermal sensors and other
     devices with thermal control capabilities that are exposed for the
     OS to use via the ACPI INT340x device objects.  Several drivers are
     introduced to expose the temperature information and cooling
     ability from these objects to user-space via the normal thermal
     framework.

     From: Lu Aaron, Lan Tianyu, Jacob Pan and Zhang Rui.

   - introduce a new thermal governor, which just uses a hysteresis to
     switch abruptly on/off a cooling device.  This governor can be used
     to control certain fan devices that can not be throttled but just
     switched on or off.  From: Peter Feuerer.

   - introduce support for some new thermal interrupt functions on
     i.MX6SX, in IMX thermal driver.  From: Anson, Huang.

   - introduce tracing support on thermal framework.  From: Punit
     Agrawal.

   - small fixes in OF thermal and thermal step_wise governor"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits)
  Thermal: int340x thermal: select ACPI fan driver
  Thermal: int3400_thermal: use acpi_thermal_rel parsing APIs
  Thermal: int340x_thermal: expose acpi thermal relationship tables
  Thermal: introduce int3403 thermal driver
  Thermal: introduce INT3402 thermal driver
  Thermal: move the KELVIN_TO_MILLICELSIUS macro to thermal.h
  ACPI / Fan: support INT3404 thermal device
  ACPI / Fan: add ACPI 4.0 style fan support
  ACPI / fan: convert to platform driver
  ACPI / fan: use acpi_device_xxx_power instead of acpi_bus equivelant
  ACPI / fan: remove no need check for device pointer
  ACPI / fan: remove unused macro
  Thermal: int3400 thermal: register to thermal framework
  Thermal: int3400 thermal: add capability to detect supporting UUIDs
  Thermal: introduce int3400 thermal driver
  ACPI: add ACPI_TYPE_LOCAL_REFERENCE support to acpi_extract_package()
  ACPI: make acpi_create_platform_device() an external API
  thermal: step_wise: fix: Prevent from binary overflow when trend is dropping
  ACPI: introduce ACPI int340x thermal scan handler
  thermal: Added Bang-bang thermal governor
  ...
2014-10-24 11:21:43 -07:00
Bob Moore 9fc3d1d09c ACPICA: Update version to 20140926.
Version 20140926.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-10-21 00:39:41 +02:00
Lv Zheng 2f8572344e ACPICA: Events: Reduce source code difference for the ACPI_EVENT_FLAG_HANDLE renaming.
This patch is partial linuxized result of the following ACPICA commit:
  ACPICA commit: a73b66c6aa1846d055bb6390d9c9b9902f7d804d
  Subject: Add "has handler" flag to event/gpe status interfaces.
  This change adds a new flag, ACPI_EVENT_FLAGS_HAS_HANDLER to the
  acpi_get_event_status and acpi_get_gpe_status external interfaces. It
  is set if the event/gpe currently has a handler associated with it.
This patch contains the code to rename ACPI_EVENT_FLAG_HANDLE to
ACPI_EVENT_FLAG_HAS_HANDLER, and the corresponding updates of its usages.

Link: https://github.com/acpica/acpica/commit/a73b66c6
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-10-21 00:39:40 +02:00
Lv Zheng a08f813e58 ACPICA: Events: Reduce source code difference for the ACPI_EVENT_FLAG_HANDLE support.
This patch is a partial linuxized result of the following ACPICA commit:
  ACPICA commit: a73b66c6aa1846d055bb6390d9c9b9902f7d804d
  Subject: Add "has handler" flag to event/gpe status interfaces.
  This change adds a new flag, ACPI_EVENT_FLAGS_HAS_HANDLER to the
  acpi_get_event_status and acpi_get_gpe_status external interfaces. It
  is set if the event/gpe currently has a handler associated with it.
This commit back ports ACPI_EVENT_FLAG_HANDLE from Linux upstream to
ACPICA, the flag along with its support code currently can only be found
in the Linux upstream and is used by the ACPI sysfs GPE interfaces and
the ACPI bus scanning support.

Link: https://github.com/acpica/acpica/commit/a73b66c6
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-10-21 00:39:40 +02:00
Bob Moore 5f8b35b633 ACPICA: Add string for _DDN method name.
The _DDN method will be used internally.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-10-21 00:39:39 +02:00
Aaron Lu 2bb3a2bf99 ACPI / fan: use acpi_device_xxx_power instead of acpi_bus equivelant
When we have the acpi_device pointer, there is no need to pass the
device's handle to the acpi_bus_xxx_power functions to get/set/update
the device's power state, instead, use the acpi_device_xxx_power
functions directly.

To make this happen for fan module, export acpi_device_update_power.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-10-10 13:57:12 +08:00
Rafael J. Wysocki e0fa975d85 ACPICA: Introduce acpi_enable_all_wakeup_gpes()
Add a routine for host OSes to enable all wakeup GPEs and disable
all of the non-wakeup ones at the same time.

It will be used for the handling of GPE wakeup from suspend-to-idle
in Linux.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-30 21:04:47 +02:00
Rafael J. Wysocki 2670e02a2d Merge back earlier 'acpica' material for v3.18. 2014-09-29 15:31:43 +02:00
Rafael J. Wysocki 9ef5a306ef Merge branches 'acpi-hotplug', 'acpi-scan', 'acpi-lpss', 'acpi-gpio' and 'acpi-video'
* acpi-hotplug:
  ACPI / hotplug: Generate online uevents for ACPI containers

* acpi-scan:
  ACPI / scan: Correct error return value of create_modalias()

* acpi-lpss:
  ACPI / platform / LPSS: disable async suspend/resume of LPSS devices

* acpi-gpio:
  gpio / ACPI: Use pin index and bit length
  ACPICA: Update to GPIO region handler interface.

* acpi-video:
  ACPI / video: disable native backlight for ThinkPad X201s
2014-09-25 22:59:30 +02:00
Rafael J. Wysocki 8ab17fc92e ACPI / hotplug: Generate online uevents for ACPI containers
Commit 46394fd01 (ACPI / hotplug: Move container-specific code out of
the core) removed the generation of "online" uevents for containers,
because "add" uevents are now generated for them automatically when
container system devices are registered.  However, there are user
space tools that need to be notified when the container and all of
its children have been enumerated, which doesn't happen any more.

For this reason, add a mechanism allowing "online" uevents to be
generated for ACPI containers after enumerating the container along
with all of its children.

Fixes: 46394fd01 (ACPI / hotplug: Move container-specific code out of the core)
Reported-and-tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-21 02:58:18 +02:00
Linus Torvalds b29f83aa8b PCI updates for v3.17:
Enumeration
     - Don't default exclusively to first video device (Bruno Prémont)
 
   PCI device hotplug
     - Remove "no hotplug settings from platform" warning (Bjorn Helgaas)
     - Add pci_ignore_hotplug() for VGA switcheroo (Bjorn Helgaas)
 
   Freescale i.MX6
     - Put LTSSM in "Detect" state before disabling (Lucas Stach)
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Merge tag 'pci-v3.17-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These fix:

   - Boot video device detection on dual-GPU Apple systems
   - Hotplug fiascos on VGA switcheroo with radeon & nouveau drivers
   - Boot hang on Freescale i.MX6 systems
   - Excessive "no hotplug settings from platform" warnings

  In particular:

  Enumeration
    - Don't default exclusively to first video device (Bruno Prémont)

  PCI device hotplug
    - Remove "no hotplug settings from platform" warning (Bjorn Helgaas)
    - Add pci_ignore_hotplug() for VGA switcheroo (Bjorn Helgaas)

  Freescale i.MX6
    - Put LTSSM in "Detect" state before disabling (Lucas Stach)"

* tag 'pci-v3.17-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  vgaarb: Drop obsolete #ifndef
  vgaarb: Don't default exclusively to first video device with mem+io
  ACPIPHP / radeon / nouveau: Remove acpi_bus_no_hotplug()
  PCI: Remove "no hotplug settings from platform" warning
  PCI: Add pci_ignore_hotplug() to ignore hotplug events for a device
  PCI: imx6: Put LTSSM in "Detect" state before disabling it
  MAINTAINERS: Add Lucas Stach as co-maintainer for i.MX6 PCI driver
2014-09-19 10:50:30 -07:00
Bjorn Helgaas f91ce35e47 ACPIPHP / radeon / nouveau: Remove acpi_bus_no_hotplug()
Revert parts of f244d8b623 ("ACPIPHP / radeon / nouveau: Fix VGA
switcheroo problem related to hotplug").

A previous commit 5493b31f0b55 ("PCI: Add pci_ignore_hotplug() to ignore
hotplug events for a device") added equivalent functionality implemented in
a different way for both acpiphp and pciehp.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Rajat Jain <rajatxjain@gmail.com>
2014-09-15 13:15:34 -06:00
Yasuaki Ishimatsu a383b68d9f ACPI / scan: not cache _SUN value in struct acpi_device_pnp
The _SUN device indentification object is not guaranteed to return
the same value every time it is executed, so we should not cache its
return value, but rather execute it every time as needed.  If it is
cached, an incorrect stale value may be used in some situations.

This issue was exposed by commit 202317a573 (ACPI / scan: Add
acpi_device objects for all device nodes in the namespace).  Fix it
by avoiding to cache the return value of _SUN.

Fixes: 202317a573 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 22:41:14 +02:00
Bob Moore 48c1947c53 ACPICA: Update version to 20140828.
Version 20140828.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 01:17:42 +02:00
Hanjun Guo 34ea065e5e ACPICA: Headers: Add GTDT flag definitions for the timer subtable.
Mostly by Hanjun Guo <hanjun.guo@linaro.org>

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 01:17:42 +02:00
Hanjun Guo 63b8f8cd67 ACPICA: ACPI 5.1/Disassembler: Add GICC affinity subtable to SRAT table.
Update template for SRAT.
Add clock_domain to standard CPU affinity subtable.

Mostly by Hanjun Guo <hanjun.guo@linaro.org>

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 01:17:41 +02:00
Bob Moore 36d32314ae ACPICA: Add _PSx names to the METHOD_NAME list.
Will be used by iASL.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-03 01:17:41 +02:00
Linus Torvalds 7725131982 ACPI and power management updates for 3.17-rc1
- ACPICA update to upstream version 20140724.  That includes
    ACPI 5.1 material (support for the _CCA and _DSD predefined names,
    changes related to the DMAR and PCCT tables and ARM support among
    other things) and cleanups related to using ACPICA's header files.
    A major part of it is related to acpidump and the core code used
    by that utility.  Changes from Bob Moore, David E Box, Lv Zheng,
    Sascha Wildner, Tomasz Nowicki, Hanjun Guo.
 
  - Radix trees for memory bitmaps used by the hibernation core from
    Joerg Roedel.
 
  - Support for waking up the system from suspend-to-idle (also known
    as the "freeze" sleep state) using ACPI-based PCI wakeup signaling
    (Rafael J Wysocki).
 
  - Fixes for issues related to ACPI button events (Rafael J Wysocki).
 
  - New device ID for an ACPI-enumerated device included into the
    Wildcat Point PCH from Jie Yang.
 
  - ACPI video updates related to backlight handling from Hans de Goede
    and Linus Torvalds.
 
  - Preliminary changes needed to support ACPI on ARM from Hanjun Guo
    and Graeme Gregory.
 
  - ACPI PNP core cleanups from Arjun Sreedharan and Zhang Rui.
 
  - Cleanups related to ACPI_COMPANION() and ACPI_HANDLE() macros
    (Rafael J Wysocki).
 
  - ACPI-based device hotplug cleanups from Wei Yongjun and
    Rafael J Wysocki.
 
  - Cleanups and improvements related to system suspend from
    Lan Tianyu, Randy Dunlap and Rafael J Wysocki.
 
  - ACPI battery cleanup from Wei Yongjun.
 
  - cpufreq core fixes from Viresh Kumar.
 
  - Elimination of a deadband effect from the cpufreq ondemand
    governor and intel_pstate driver cleanups from Stratos Karafotis.
 
  - 350MHz CPU support for the powernow-k6 cpufreq driver from
    Mikulas Patocka.
 
  - Fix for the imx6 cpufreq driver from Anson Huang.
 
  - cpuidle core and governor cleanups from Daniel Lezcano,
    Sandeep Tripathy and Mohammad Merajul Islam Molla.
 
  - Build fix for the big_little cpuidle driver from Sachin Kamat.
 
  - Configuration fix for the Operation Performance Points (OPP)
    framework from Mark Brown.
 
  - APM cleanup from Jean Delvare.
 
  - cpupower utility fixes and cleanups from Peter Senna Tschudin,
    Andrey Utkin, Himangi Saraogi, Rickard Strandqvist, Thomas Renninger.
 
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Merge tag 'pm+acpi-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management updates from Rafael Wysocki:
 "Again, ACPICA leads the pack (47 commits), followed by cpufreq (18
  commits) and system suspend/hibernation (9 commits).

  From the new code perspective, the ACPICA update brings ACPI 5.1 to
  the table, including a new device configuration object called _DSD
  (Device Specific Data) that will hopefully help us to operate device
  properties like Device Trees do (at least to some extent) and changes
  related to supporting ACPI on ARM.

  Apart from that we have hibernation changes making it use radix trees
  to store memory bitmaps which should speed up some operations carried
  out by it quite significantly.  We also have some power management
  changes related to suspend-to-idle (the "freeze" sleep state) support
  and more preliminary changes needed to support ACPI on ARM (outside of
  ACPICA).

  The rest is fixes and cleanups pretty much everywhere.

  Specifics:

   - ACPICA update to upstream version 20140724.  That includes ACPI 5.1
     material (support for the _CCA and _DSD predefined names, changes
     related to the DMAR and PCCT tables and ARM support among other
     things) and cleanups related to using ACPICA's header files.  A
     major part of it is related to acpidump and the core code used by
     that utility.  Changes from Bob Moore, David E Box, Lv Zheng,
     Sascha Wildner, Tomasz Nowicki, Hanjun Guo.

   - Radix trees for memory bitmaps used by the hibernation core from
     Joerg Roedel.

   - Support for waking up the system from suspend-to-idle (also known
     as the "freeze" sleep state) using ACPI-based PCI wakeup signaling
     (Rafael J Wysocki).

   - Fixes for issues related to ACPI button events (Rafael J Wysocki).

   - New device ID for an ACPI-enumerated device included into the
     Wildcat Point PCH from Jie Yang.

   - ACPI video updates related to backlight handling from Hans de Goede
     and Linus Torvalds.

   - Preliminary changes needed to support ACPI on ARM from Hanjun Guo
     and Graeme Gregory.

   - ACPI PNP core cleanups from Arjun Sreedharan and Zhang Rui.

   - Cleanups related to ACPI_COMPANION() and ACPI_HANDLE() macros
     (Rafael J Wysocki).

   - ACPI-based device hotplug cleanups from Wei Yongjun and Rafael J
     Wysocki.

   - Cleanups and improvements related to system suspend from Lan
     Tianyu, Randy Dunlap and Rafael J Wysocki.

   - ACPI battery cleanup from Wei Yongjun.

   - cpufreq core fixes from Viresh Kumar.

   - Elimination of a deadband effect from the cpufreq ondemand governor
     and intel_pstate driver cleanups from Stratos Karafotis.

   - 350MHz CPU support for the powernow-k6 cpufreq driver from Mikulas
     Patocka.

   - Fix for the imx6 cpufreq driver from Anson Huang.

   - cpuidle core and governor cleanups from Daniel Lezcano, Sandeep
     Tripathy and Mohammad Merajul Islam Molla.

   - Build fix for the big_little cpuidle driver from Sachin Kamat.

   - Configuration fix for the Operation Performance Points (OPP)
     framework from Mark Brown.

   - APM cleanup from Jean Delvare.

   - cpupower utility fixes and cleanups from Peter Senna Tschudin,
     Andrey Utkin, Himangi Saraogi, Rickard Strandqvist, Thomas
     Renninger"

* tag 'pm+acpi-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (118 commits)
  ACPI / LPSS: add LPSS device for Wildcat Point PCH
  ACPI / PNP: Replace faulty is_hex_digit() by isxdigit()
  ACPICA: Update version to 20140724.
  ACPICA: ACPI 5.1: Update for PCCT table changes.
  ACPICA/ARM: ACPI 5.1: Update for GTDT table changes.
  ACPICA/ARM: ACPI 5.1: Update for MADT changes.
  ACPICA/ARM: ACPI 5.1: Update for FADT changes.
  ACPICA: ACPI 5.1: Support for the _CCA predifined name.
  ACPICA: ACPI 5.1: New notify value for System Affinity Update.
  ACPICA: ACPI 5.1: Support for the _DSD predefined name.
  ACPICA: Debug object: Add current value of Timer() to debug line prefix.
  ACPICA: acpihelp: Add UUID support, restructure some existing files.
  ACPICA: Utilities: Fix local printf issue.
  ACPICA: Tables: Update for DMAR table changes.
  ACPICA: Remove some extraneous printf arguments.
  ACPICA: Update for comments/formatting. No functional changes.
  ACPICA: Disassembler: Add support for the ToUUID opererator (macro).
  ACPICA: Remove a redundant cast to acpi_size for ACPI_OFFSET() macro.
  ACPICA: Work around an ancient GCC bug.
  ACPI / processor: Make it possible to get local x2apic id via _MAT
  ...
2014-08-06 20:34:19 -07:00
Rafael J. Wysocki 8b80c0f187 Merge branch 'acpica'
* acpica:
  ACPICA: Update version to 20140724.
  ACPICA: ACPI 5.1: Update for PCCT table changes.
  ACPICA/ARM: ACPI 5.1: Update for GTDT table changes.
  ACPICA/ARM: ACPI 5.1: Update for MADT changes.
  ACPICA/ARM: ACPI 5.1: Update for FADT changes.
  ACPICA: ACPI 5.1: Support for the _CCA predifined name.
  ACPICA: ACPI 5.1: New notify value for System Affinity Update.
  ACPICA: ACPI 5.1: Support for the _DSD predefined name.
  ACPICA: Debug object: Add current value of Timer() to debug line prefix.
  ACPICA: acpihelp: Add UUID support, restructure some existing files.
  ACPICA: Utilities: Fix local printf issue.
  ACPICA: Tables: Update for DMAR table changes.
  ACPICA: Remove some extraneous printf arguments.
  ACPICA: Update for comments/formatting. No functional changes.
  ACPICA: Disassembler: Add support for the ToUUID opererator (macro).
  ACPICA: Remove a redundant cast to acpi_size for ACPI_OFFSET() macro.
  ACPICA: Work around an ancient GCC bug.
2014-08-05 22:50:12 +02:00
Bob Moore 796ca77858 ACPICA: Update version to 20140724.
Version 20140724.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:25 +02:00
Bob Moore 67a3d6203c ACPICA: ACPI 5.1: Update for PCCT table changes.
One new subtable.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:24 +02:00
Tomasz Nowicki 54ea4247d3 ACPICA/ARM: ACPI 5.1: Update for GTDT table changes.
New fields and new subtables. Tomasz Nowicki.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:24 +02:00
Tomasz Nowicki d0c383e48d ACPICA/ARM: ACPI 5.1: Update for MADT changes.
New subtables and changes to other subtables. Tomasz Nowicki.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:24 +02:00
Graeme Gregory 9eb1105bab ACPICA/ARM: ACPI 5.1: Update for FADT changes.
Adds ARM flags and FADT minor revision. Graeme Gregory.

Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:24 +02:00
Bob Moore b3cc1356a6 ACPICA: ACPI 5.1: New notify value for System Affinity Update.
New value for the Notify() operator.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:24 +02:00
David E. Box a9f65e01aa ACPICA: ACPI 5.1: Support for the _DSD predefined name.
Adds full support for _DSD. David Box.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:23 +02:00
Bob Moore 83118b0de3 ACPICA: Tables: Update for DMAR table changes.
Update table compiler and disassembler for new DMAR fields introduced
in Sept. 2013.

Note that Linux DMAR users need to be updated after applying this change.

[zetalog: changing drivers/iommu/dmar.c accordingly]

Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:23 +02:00
Bob Moore 90da690bc4 ACPICA: Disassembler: Add support for the ToUUID opererator (macro).
This change adds support to disassemble a UUID back to the original
ToUUID operator. It will detect a UUID within a standard AML Buffer.
Also, a description of the UUID is emitted for "known" UUIDs, defined
as UUIDs that are defined in the ACPI specification.

Since this is a change for disassembler which is not shipped in the
Linux kernel, the Linux kernel is not affected.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:22 +02:00
Bob Moore 9b62da7332 ACPICA: Remove a redundant cast to acpi_size for ACPI_OFFSET() macro.
It is already casted to acpi_size by ACPI_PTR_DIFF() macro.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31 00:50:22 +02:00
Rafael J. Wysocki e5e0243e36 Merge branches 'acpi-video' and 'acpi-hotplug'
* acpi-video:
  ACPI: move models with win8 brightness problems from win8 blacklist to use_native_backlight
  ACPI / video: Fix backlight taking 2 steps on a brightness up/down keypress

* acpi-hotplug:
  ACPI / hotplug / PCI: Fix sparse non static symbol warning
  ACPI / hotplug: Simplify acpi_set_hp_context()
  ACPI / hotplug / PCI: Eliminate acpiphp_dev_to_bridge()
2014-07-27 23:55:54 +02:00
Rafael J. Wysocki 91af125c33 Merge branches 'acpi-pnp' and 'acpi-pci'
* acpi-pnp:
  ACPI / PNP: Use ACPI_COMPANION() instead of ACPI_HANDLE()
  ACPI / PNP: do ACPI binding directly

* acpi-pci:
  ACPI / PCI: Use ACPI_COMPANION() instead of ACPI_HANDLE()
2014-07-27 23:55:35 +02:00
Rafael J. Wysocki 805c528158 Merge branches 'acpi-pm', 'acpi-sleep' and 'acpi-button'
* acpi-pm:
  ACPI / PM: Use ACPI_COMPANION() instead of ACPI_HANDLE()
  ACPI / PM: Always enable wakeup GPEs when enabling device wakeup
  ACPI / PM: Revork the handling of ACPI device wakeup notifications
  PM: Create PM workqueue if runtime PM is not configured too

* acpi-sleep:
  ACPI / sleep: Do not save NVS for new machines to accelerate S3

* acpi-button:
  ACPI / button: Do not propagate wakeup-from-suspend events
2014-07-27 23:55:19 +02:00
Rafael J. Wysocki 7e1c1a82f5 Merge branch 'acpi-headers'
* acpi-headers:
  ACPI: Add support to force header inclusion rules for <acpi/acpi.h>.
  ACPI / SFI: Fix wrong <acpi/acpi.h> inclusion in SFI/ACPI wrapper - table definitions.
  ACPICA: Linux: Allow ACPICA inclusion for CONFIG_ACPI=n builds.
  ACPICA: Linux: Add support to exclude <asm/acenv.h> inclusion.
  ACPICA: Linux: Add stub implementation of ACPICA 64-bit mathematics.
  ACPICA: Linux: Add stub support for Linux specific variables and functions.
2014-07-27 23:52:05 +02:00
Rafael J. Wysocki 92a18409ba Merge branch 'acpica'
* acpica: (30 commits)
  ACPICA: Add new GPE public interface - acpi_mark_gpe_for_wake.
  ACPICA: GPEs: Do not allow enable for GPEs that have no handler(s).
  ACPICA: Fix a regression for deletion of Alias() objects.
  ACPICA: Update version to 20140627
  ACPICA: Tables: Merge DMAR table structure updates
  ACPICA: Hardware: back port of a recursive locking fix
  ACPICA: utprint/oslibcfs: cleanup - no functional change
  ACPICA: Executer: Fix trivial issues in acpi_get_serial_access_bytes()
  ACPICA: OSL: Update acpidump to reduce source code differences
  ACPICA: acpidump: Reduce freopen() invocations to improve portability
  ACPICA: acpidump: Replace file IOs with new APIs to improve portability
  ACPICA: acpidump: Remove exit() from generic layer to improve portability
  ACPICA: acpidump: Add memory/string OSL usage to improve portability
  ACPICA: Common: Enhance acpi_getopt() to improve portability
  ACPICA: Common: Enhance cm_get_file_size() to improve portability
  ACPICA: Application: Enhance ACPI_USAGE_xxx/ACPI_OPTION with acpi_os_printf() to improve portability
  ACPICA: Utilities: Introduce acpi_log_error() to improve portability
  ACPICA: Utilities: Add formatted printing APIs
  ACPICA: OSL: Add portable file IO to improve portability
  ACPICA: OSL: Clean up acpi_os_printf()/acpi_os_vprintf() stubs
  ...
2014-07-27 23:51:45 +02:00
Rafael J. Wysocki c12f07d17c ACPICA: Add new GPE public interface - acpi_mark_gpe_for_wake.
ACPICA commit c49dbfed2bc069d0038ea7e1294409bfde7c2c8c

Some potential callers of acpi_setup_gpe_for_wake may know in advance that
there won't be any notify handlers installed for device wake notifications
from the given GPE (one example is a button GPE in Linux). For these cases,
acpi_mark_gpe_for_wake should be used instead of acpi_setup_gpe_for_wake.
This will set the ACPI_GPE_CAN_WAKE flag for the GPE without trying to
setup implicit wake notification for it (since there's no handler method).
Rafael Wysocki.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
2014-07-23 23:12:33 +02:00
Lv Zheng 417b4a73b6 ACPI: Add support to force header inclusion rules for <acpi/acpi.h>.
As there is only CONFIG_ACPI=n processing in the <linux/acpi.h>, it is not
safe to include <acpi/acpi.h> directly for source out of Linux ACPI
subsystems.

This patch adds error messaging to warn developers of such wrong
inclusions.

In order not to be bisected and reverted as a wrong commit, warning
messages are carefully split into a seperate patch other than the wrong
inclusion cleanups.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-23 01:10:45 +02:00
Lv Zheng d334c823b2 ACPICA: Linux: Add support to exclude <asm/acenv.h> inclusion.
The forthcoming patch will make <acpi/acpi.h> to be visible to all kernel
source code. Thus for the architectures that do not support ACPI and
haven't implemented <asm/acenv.h>, we need to make it excluded.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-23 01:10:44 +02:00
Lv Zheng daba25d6e0 ACPICA: Linux: Add stub implementation of ACPICA 64-bit mathematics.
This patch adds default 64-bit mathematics in aclinux.h using do_div(). As
do_div() can be used for all Linux architectures, this can also be used as
stub macros for ACPICA 64-bit mathematics.

These macros are required by drivers/acpi/utmath.c when ACPI_USE_NATIVE_DIVIDE
is not defined.  It is used by ACPICA, so currently this is only meaningful to
CONFIG_ACPI builds.  So the kernel will not use these macros unless CONFIG_ACPI
is defined and ACPI_USE_DIVIDE is not defined.

For 64-bit kernels:
In include/acpi/actypes.h, for ACPI_MACHINE_WIDTH=64,
ACPI_USE_NATIVE_DIVIDE will be defined, thus these macros are not used.
In include/acpi/platform/aclinux.h, for __KERNEL__ surrounded code,
ACPI_MACHINE_WIDTH is defined to be BITS_PER_LONG.
So all 64-bit kernels do not use these macros.

For 32-bit kernels:
As mentioned above, these macros will be used when BITS_PER_LONG is 32.
Thus currently the i328 kernels are the only users for these macros.
But they won't use this default implementation provided by this patch,
because in arch/x86/include/asm/acenv.h, there are already overrides
implemented.  So these default macros are not used by 32-bit x86 (i386)
kernels.

These macros will only be used by future non x86 32-bit architectures
that try to support ACPI in Linux kernel.

During the period they do not have arch specific implementations of such
macros, we can avoid build errors for them.

And since they can see ACPICA functioning without implementing any arch
specific environment tunings, we  can also avoid function errors for
them.

As this implementation is not performance friendly, those architectures
still need to implement real support in the end.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
[rjw: Changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-23 01:07:31 +02:00
Rafael J. Wysocki f35cec2555 ACPI / PM: Always enable wakeup GPEs when enabling device wakeup
Wakeup GPEs are currently only enabled when setting up devices for
remote wakeup at run time.  During system-wide transitions they are
enabled by ACPICA at the very last stage of suspend (before asking
the BIOS to take over).  Of course, that only works for system
sleep states supported by ACPI, so in particular it doesn't work
for the "freeze" sleep state.

For this reason, modify the ACPI core device PM code to enable wakeup
GPEs for devices when setting them up for wakeup regardless of whether
that is remote wakeup at runtime or system wakeup.  That allows the
same device wakeup setup routine to be used for both runtime PM and
system-wide PM and makes it possible to reduce code size quite a bit.

This make ACPI-based PCI Wake-on-LAN work with the "freeze" sleep
state on my venerable Toshiba Portege R500 and should help other
systems too.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-23 01:00:53 +02:00
Rafael J. Wysocki c072530f39 ACPI / PM: Revork the handling of ACPI device wakeup notifications
Since ACPI wakeup GPEs are going to be enabled during system suspend
as well as for runtime wakeup by a subsequent patch and the same
notify handlers will be used in both cases, rework the ACPI device
wakeup notification framework so that the part specific to physical
devices is always run asynchronously from the PM workqueue.  This
prevents runtime resume callbacks for those devices from being
run during system suspend and resume which may not be appropriate,
among other things.

Also make ACPI device wakeup notification handling a bit more robust
agaist subsequent removal of ACPI device objects, whould that ever
happen, and create a wakeup source object for each ACPI device
configured for wakeup so that wakeup notifications for those
devices can wake up the system from the "freeze" sleep state.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-23 01:00:45 +02:00
Tomasz Nowicki 594c7255dc acpi, apei, ghes: Factor out ioremap virtual memory for IRQ and NMI context.
GHES currently maps two pages with atomic_ioremap.  From now
on, NMI is architectural depended so there is no need to allocate
an NMI page for platforms without NMI support.

To make it possible to not use a second page, swap the existing
page order so that the IRQ context page is first, and the optional
NMI context page is second.  Then, use HAVE_ACPI_APEI_NMI to decide
how many pages are to be allocated.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2014-07-22 15:05:06 -07:00
Tomasz Nowicki 9dae3d0d9e apei, mce: Factor out APEI architecture specific MCE calls.
This commit abstracts MCE calls and provides weak corresponding default
implementation for those architectures which do not need arch specific
actions. Each platform willing to do additional architectural actions
should provides desired function definition. It allows us to avoid wrap
code into #ifdef in generic code and prevent new platform from introducing
dummy stub function too.

Initially, there are two APEI arch-specific calls:
- arch_apei_enable_cmcff()
- arch_apei_report_mem_error()
Both interact with MCE driver for X86 architecture.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2014-07-22 15:05:06 -07:00
Lv Zheng a8278efd84 ACPICA: Linux: Add stub support for Linux specific variables and functions.
There are global variables and functions not upstreamed to the ACPICA code
base.  Such symbols still can be referenced by external users as they are
listed in the acpixf.h.  This patch uses ACPI_GLOBAL and
ACPI_EXTERNAL_RETURN_STATUS mechanism to add stub support for such symbols.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-20 01:34:57 +02:00
Rafael J. Wysocki ba574dc856 ACPI / hotplug: Simplify acpi_set_hp_context()
Since all of the acpi_set_hp_context() callers pass at least one NULL
function pointer and one caller passes NULL function pointers only
to it, drop function pointer arguments from acpi_set_hp_context()
and make the callers initialize the function pointers in struct
acpi_hotplug_context by themselves before passing it to
acpi_set_hp_context().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2014-07-16 01:45:40 +02:00
Bob Moore 587fc727ad ACPICA: Update version to 20140627
Version 20140627.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-08 14:22:28 +02:00
Lv Zheng 1538ac64f5 ACPICA: Tables: Merge DMAR table structure updates
This patch is a back port result of the following Linux commit:
  Author: David Woodhouse <David.Woodhouse@intel.com>
  Subject: iommu/vt-d: Add ACPI namespace device reporting structures

ACPICA need to handle old compilers where u8 object_name[] is only allowed
for an initialized variable. This patch reduces back port source code
differences between Linux and ACPICA upstream.

Cc: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-08 14:22:28 +02:00
Lv Zheng fbee6b21a3 ACPICA: acpidump: Add memory/string OSL usage to improve portability
This patch adds code to use generic OSL for acpidump to improve the
portability of this tool. Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-08 14:22:27 +02:00
Lv Zheng a92e95773d ACPICA: Common: Enhance acpi_getopt() to improve portability
This patch enhances acpi_getopt() by converting the standard C library
invocations into portable ACPI string APIs and acpi_log_error() to improve
portability. Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-08 14:22:26 +02:00
Lv Zheng 2e70da4c51 ACPICA: Utilities: Introduce acpi_log_error() to improve portability
Invocations like fprintf(stderr) and perror() are not portable, this patch
introduces acpi_log_error() as a replacement, it is implemented using new
portable API - acpi_ut_file_vprintf().

Note that though acpi_os_initialize() need to be invoked prior than using
this new API, since no users are introduced in this patch, such invocations
are not added for applications that link utprint.c in this patch. Futher
patches that introduce users of acpi_log_error() should take care of this.

This patch is only useful for ACPICA applications, most of which are not
shipped in the Linux kernel.

Note that follow-up commits will update acpidump to use this new API to
improve portability. Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-08 14:22:26 +02:00