Commit Graph

1193 Commits

Author SHA1 Message Date
Linus Torvalds 9bdc771f2c Additional ACPICA material for v4.2-rc1
- Fix system resume problems related to 32-bit and 64-bit versions
    of the Firmware ACPI Control Structure (FACS) in the firmare (Lv
    Zheng).
 
  - Fix double initialization of the FACS (Lv Zheng).
 
  - Add _CLS object processing code to ACPICA (Suravee Suthikulpanit).
 
  - Add support for the (currently missing) new GIC version field in
    the Multiple APIC Description Table (MADT) (Hanjun Guo).
 
  - Add support for overriding objects in the ACPI namespace to
    ACPICA and OSDT support (Lv Zheng, Bob Moore, Zhang Rui).
 
  - Updates related to the TCPA and TPM2 ACPI tables (Bob Moore).
 
  - Restore the commit modifying _REV to always return "2" (as
    required by ACPI 6) and add a blacklisting mechanism for
    systems that may be affected by that change (Rafael J Wysocki).
 
  - Assorted fixes and cleanups (Bob Moore, Lv Zheng, Sascha Wildner).
 
 /
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Merge tag 'acpica-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPICA updates from Rafael Wysocki:
 "Additional ACPICA material for v4.2-rc1

  This will update the ACPICA code in the kernel to upstream revision
  20150619 (a bug-fix release mostly including stable-candidate fixes)
  and restore an earlier ACPICA commit that had to be reverted due to a
  regression introduced by it (the regression is addressed by
  blacklisting the only known system affected by it to date).

  The only new feature added by this update is the support for
  overriding objects in the ACPI namespace and a new ACPI table that can
  be used for that called the Override System Definition Table (OSDT).
  That should allow us to "patch" the ACPI namespace built from
  incomplete or incorrect ACPI System Definition tables (DSDT, SSDT)
  during system startup without the need to provide replacements for all
  of those tables in the future.

  Specifics:

   - Fix system resume problems related to 32-bit and 64-bit versions of
     the Firmware ACPI Control Structure (FACS) in the firmare (Lv
     Zheng)

   - Fix double initialization of the FACS (Lv Zheng)

   - Add _CLS object processing code to ACPICA (Suravee Suthikulpanit)

   - Add support for the (currently missing) new GIC version field in
     the Multiple APIC Description Table (MADT) (Hanjun Guo)

   - Add support for overriding objects in the ACPI namespace to ACPICA
     and OSDT support (Lv Zheng, Bob Moore, Zhang Rui)

   - Updates related to the TCPA and TPM2 ACPI tables (Bob Moore)

   - Restore the commit modifying _REV to always return "2" (as required
     by ACPI 6) and add a blacklisting mechanism for systems that may be
     affected by that change (Rafael J Wysocki)

   - Assorted fixes and cleanups (Bob Moore, Lv Zheng, Sascha Wildner)"

* tag 'acpica-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (28 commits)
  Revert 'Revert "ACPICA: Permanently set _REV to the value '2'."'
  ACPI / init: Make it possible to override _REV
  ACPICA: Update version to 20150619
  ACPICA: Comment update, no functional change
  ACPICA: Update TPM2 ACPI table
  ACPICA: Update definitions for the TCPA and TPM2 ACPI tables
  ACPICA: Split C library prototypes to new header
  ACPICA: De-macroize calls to standard C library functions
  ACPI / acpidump: Update acpidump manual
  ACPICA: acpidump: Convert the default behavior to dump from /sys/firmware/acpi/tables
  ACPICA: acpidump: Allow customized tables to be dumped without accessing /dev/mem
  ACPICA: Cleanup output for the ASL Debug object
  ACPICA: Update for acpi_install_table memory types
  ACPICA: Namespace: Change namespace override to avoid node deletion
  ACPICA: Namespace: Add support of OSDT table
  ACPICA: Namespace: Add support to allow overriding objects
  ACPICA: ACPI 6.0: Add values for MADT GIC version field
  ACPICA: Utilities: Add _CLS processing
  ACPICA: Add dragon_fly support to unix file mapping file
  ACPICA: EFI: Add EFI interface definitions to eliminate dependency of GNU EFI
  ...
2015-07-02 17:11:28 -07:00
Bob Moore ce55d01e9b ACPICA: Update version to 20150619
ACPICA commit 2fcf4f4c95e6a4875f39a929f8f92ef50cc53bb5
ACPICA commit d7a940bb308d001b5d2b196174fee36c7daa61d6

Version 20150619.

Link: https://github.com/acpica/acpica/commit/2fcf4f4c
Link: https://github.com/acpica/acpica/commit/d7a940bb
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>
2015-07-01 23:17:56 +02:00
Bob Moore 413d4a6def ACPICA: Update TPM2 ACPI table
ACPICA commit 254bf77e7ca01cb27e026fa5737f7df8dae03f2c

- Add constans for the start_method.
- Remove the control structure, not part of ACPI, not defined in the current
TCG spec.

Link: https://github.com/acpica/acpica/commit/254bf77e
Reported-by: Jarkko Sakkinen <jarkko.sakkinen@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>
2015-07-01 23:17:56 +02:00
Bob Moore 9005694e40 ACPICA: Update definitions for the TCPA and TPM2 ACPI tables
ACPICA commit 33140b4498666337dd33a00cf3c4797a53981a7b

Changes for a new version of the 3rd party spec for these tables,
the "TCG ACPI Specification", December 14, 2014. Also, moved the
definition of TPM2 to actbl2.h, next to TCPA, since both should
be together.

Update the table compiler/disassembler code for the tables.
However, the "Server" TCPA table is not supported at this time.

Link: https://github.com/acpica/acpica/commit/33140b44
Reported-by: Jarkko Sakkinen <jarkko.sakkinen@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>
2015-07-01 23:17:56 +02:00
Bob Moore 4fa4616e27 ACPICA: De-macroize calls to standard C library functions
ACPICA commit 3b1026e0bdd3c32eb6d5d313f3ba0b1fee7597b4
ACPICA commit 00f0dc83f5cfca53b27a3213ae0d7719b88c2d6b
ACPICA commit 47d22a738d0e19fd241ffe4e3e9d4e198e4afc69

Across all of ACPICA. Replace C library macros such as ACPI_STRLEN with the
standard names such as strlen. The original purpose for these macros is
long since obsolete.
Also cast various invocations as necessary. Bob Moore, Jung-uk Kim, Lv Zheng.

Link: https://github.com/acpica/acpica/commit/3b1026e0
Link: https://github.com/acpica/acpica/commit/00f0dc83
Link: https://github.com/acpica/acpica/commit/47d22a73
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-01 23:17:55 +02:00
Bob Moore 8ea9865577 ACPICA: Namespace: Change namespace override to avoid node deletion
ACPICA commit c0ce529e1fbb8ec47d2522a3aa10f3ab77e16e41

There is no reference counting implemented for struct acpi_namespace_node, so it
is currently not removable during runtime.
This patch changes the namespace override code to keep the old
struct acpi_namespace_node undeleted so that the override mechanism can happen
during runtime. Bob Moore.

Link: https://github.com/acpica/acpica/commit/c0ce529e
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>
2015-07-01 23:17:54 +02:00
Bob Moore fe536995f2 ACPICA: Namespace: Add support of OSDT table
ACPICA commit 27415c82fcecf467446f66d1007a0691cc5f3709

This patch adds OSDT (Override System Definition Table) support.
When OSDT is loaded, conflict namespace objects will be overridden
by the AML interpreter. Bob Moore, Lv Zheng.

Link: https://github.com/acpica/acpica/commit/27415c82
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>
2015-07-01 23:17:54 +02:00
Hanjun Guo a8bd0f07eb ACPICA: ACPI 6.0: Add values for MADT GIC version field
ACPICA commit 4b100dc43e8baee8c8b4891b23bc7ad03eba6a28

Support for the new version field in the generic distributor
subtable. Hanjun Guo <hanjun.guo@linaro.org>

Link: https://github.com/acpica/acpica/commit/4b100dc4
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>
2015-07-01 23:17:53 +02:00
Suravee Suthikulpanit f65358e572 ACPICA: Utilities: Add _CLS processing
ACPICA commit 9a2b638acb3a7215209432e070c6bd0312374229

ACPI Device object often contains a _CLS object to supply PCI-defined class
code for the device. This patch introduces logic to process the _CLS
object. Suravee Suthikulpanit, Lv Zheng.

Link: https://github.com/acpica/acpica/commit/9a2b638a
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
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>
2015-07-01 23:17:53 +02:00
Lv Zheng 07cf6ce595 ACPICA: EFI: Add EFI interface definitions to eliminate dependency of GNU EFI
ACPICA commit 5d00e67a74542d030f0a55e7a947a020ef0d9693

This patch copies EFI interface definitions to the ACPICA code base so that
the EFI utility support can be ported to other EFI implementation.

Known issues:
1. MS Builds of uefi_call_wrapper()
   The uefi_call_wrapper() in GNU EFI is implemented in a the way to work
   around the ABI difference between Unix and MS. While I don't have
   environment to test the MS builds.

In order to port the ACPICA utilities to other EFI implementation, all that
need to be done is to impelement the 64-bit division support and the
program entry point where the efi_main() is invoked. Code to impelement
these is platform specific, and ACPICA currently choose to hide such
platform specific code within the specific EFI impelementation. Lv Zheng.

This patch doesn't affect Linux kernel.

Link: https://github.com/acpica/acpica/commit/5d00e67a
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>
2015-07-01 23:17:53 +02:00
Lv Zheng 7b09d8fded ACPICA: MSVC6: Fix build issue for variable argument macros
ACPICA commit 72f5a358f28c5d154ed613c142c7dca03192c5ee

This patch intoduces generic variable macro detection support and fixes
build breakage issue with macros using __VA_ARGS__ feature defined in
C99.

This patch fixes this build issue. Lv Zheng.

This patch doesn't affect Linux kernel.

Link: https://github.com/acpica/acpica/commit/72f5a358
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>
2015-07-01 23:17:53 +02:00
Lv Zheng 0ea6138178 ACPICA: Tables: Enable default 64-bit FADT addresses favor
ACPICA commit 4da56eeae0749dfe8491285c1e1fad48f6efafd8

The following commit temporarily disables correct 64-bit FADT addresses
favor during the period the root cause of the bug is not fixed:
 Commit: 85dbd5801f
 ACPICA: Tables: Restore old behavor to favor 32-bit FADT addresses.

With enough protections, this patch re-enables 64-bit FADT addresses by
default. If regressions are reported against such change, this patch should
be bisected and reverted.
Note that 64-bit FACS favor and 64-bit firmware waking vector favor are
excluded by this commit in order not to break OSPMs. Lv Zheng.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Link: https://github.com/acpica/acpica/commit/4da56eea
Cc: 3.15.1+ <stable@vger.kernel.org> # 3.15.1+
Reported-and-tested-by: Oswald Buddenhagen <ossi@kde.org>
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>
2015-07-01 23:17:53 +02:00
Lv Zheng c04be18448 ACPICA: Tables: Fix an issue that FACS initialization is performed twice
ACPICA commit 90f5332a15e9d9ba83831ca700b2b9f708274658

This patch adds a new FACS initialization flag for acpi_tb_initialize().
acpi_enable_subsystem() might be invoked several times in OS bootup process,
and we don't want FACS initialization to be invoked twice. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/90f5332a
Cc: All applicable <stable@vger.kernel.org> # All applicable
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>
2015-07-01 23:17:52 +02:00
Lv Zheng c04e1fb439 ACPICA: Tables: Enable both 32-bit and 64-bit FACS
ACPICA commit f7b86f35416e3d1f71c3d816ff5075ddd33ed486

The following commit is reported to have broken s2ram on some platforms:
 Commit: 0249ed2444
 ACPICA: Add option to favor 32-bit FADT addresses.
The platform reports 2 FACS tables (which is not allowed by ACPI
specification) and the new 32-bit address favor rule forces OSPMs to use
the FACS table reported via FADT's X_FIRMWARE_CTRL field.

The root cause of the reported bug might be one of the followings:
1. BIOS may favor the 64-bit firmware waking vector address when the
   version of the FACS is greater than 0 and Linux currently only supports
   resuming from the real mode, so the 64-bit firmware waking vector has
   never been set and might be invalid to BIOS while the commit enables
   higher version FACS.
2. BIOS may favor the FACS reported via the "FIRMWARE_CTRL" field in the
   FADT while the commit doesn't set the firmware waking vector address of
   the FACS reported by "FIRMWARE_CTRL", it only sets the firware waking
   vector address of the FACS reported by "X_FIRMWARE_CTRL".

This patch excludes the cases that can trigger the bugs caused by the root
cause 2.

There is no handshaking mechanism can be used by OSPM to tell BIOS which
FACS is currently used. Thus the FACS reported by "FIRMWARE_CTRL" may still
be used by BIOS and the 0 value of the 32-bit firmware waking vector might
trigger such failure.

This patch tries to favor 32bit FACS address in another way where both the
FACS reported by "FIRMWARE_CTRL" and the FACS reported by "X_FIRMWARE_CTRL"
are loaded so that further commit can set firmware waking vector in the
both tables to ensure we can exclude the cases that trigger the bugs caused
by the root cause 2. The exclusion is split into 2 commits as this commit
is also useful for dumping more ACPI tables, it won't get reverted when
such exclusion is no longer necessary. Lv Zheng.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Link: https://github.com/acpica/acpica/commit/f7b86f35
Cc: 3.14.1+ <stable@vger.kernel.org> # 3.14.1+
Reported-and-tested-by: Oswald Buddenhagen <ossi@kde.org>
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>
2015-07-01 23:17:52 +02:00
Lv Zheng aca2a5d3a8 ACPICA: Hardware: Enable 64-bit firmware waking vector for selected FACS
ACPICA commit 7aa598d711644ab0de5f70ad88f1e2de253115e4

The following commit is reported to have broken s2ram on some platforms:
 Commit: 0249ed2444
 ACPICA: Add option to favor 32-bit FADT addresses.
The platform reports 2 FACS tables (which is not allowed by ACPI
specification) and the new 32-bit address favor rule forces OSPMs to use
the FACS table reported via FADT's X_FIRMWARE_CTRL field.

The root cause of the reported bug might be one of the followings:
1. BIOS may favor the 64-bit firmware waking vector address when the
   version of the FACS is greater than 0 and Linux currently only supports
   resuming from the real mode, so the 64-bit firmware waking vector has
   never been set and might be invalid to BIOS while the commit enables
   higher version FACS.
2. BIOS may favor the FACS reported via the "FIRMWARE_CTRL" field in the
   FADT while the commit doesn't set the firmware waking vector address of
   the FACS reported by "FIRMWARE_CTRL", it only sets the firware waking
   vector address of the FACS reported by "X_FIRMWARE_CTRL".

This patch excludes the cases that can trigger the bugs caused by the root
cause 1.

ACPI specification says:
A. 32-bit FACS address (FIRMWARE_CTRL field in FADT):
   Physical memory address of the FACS, where OSPM and firmware exchange
   control information.
   If the X_FIRMWARE_CTRL field contains a non zero value then this field
   must be zero.
   A zero value indicates that no FACS is specified by this field.
B. 64-bit FACS address (X_FIRMWARE_CTRL field in FADT):
   64bit physical memory address of the FACS.
   This field is used when the physical address of the FACS is above 4GB.
   If the FIRMWARE_CTRL field contains a non zero value then this field
   must be zero.
   A zero value indicates that no FACS is specified by this field.
Thus the 32bit and 64bit firmware waking vector should indicate completely
different resuming environment - real mode (1MB addressable) and non real
mode (4GB+ addressable) and currently Linux only supports resuming from
real mode.

This patch enables 64-bit firmware waking vector for selected FACS via new
acpi_set_firmware_waking_vectors() API so that it's up to OSPMs to
determine which resuming mode should be used by BIOS and ACPICA changes
won't trigger the bugs caused by the root cause 1. Lv Zheng.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Link: https://github.com/acpica/acpica/commit/7aa598d7
Reported-and-tested-by: Oswald Buddenhagen <ossi@kde.org>
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>
2015-07-01 23:17:52 +02:00
Rafael J. Wysocki 132c242d95 Merge branches 'acpi-video', 'device-properties', 'pm-sleep' and 'pm-cpuidle'
* acpi-video:
  ACPI / video: Inline acpi_video_set_dmi_backlight_type

* device-properties:
  ACPI / OF: Rename of_node() and acpi_node() to to_of_node() and to_acpi_node()

* pm-sleep:
  PM / sleep: Increase default DPM watchdog timeout to 60
  PM / hibernate: re-enable nonboot cpus on disable_nonboot_cpus() failure

* pm-cpuidle:
  tick/idle/powerpc: Do not register idle states with CPUIDLE_FLAG_TIMER_STOP set in periodic mode
2015-06-26 03:30:37 +02:00
Alexander Sverdlin c181fb3e72 ACPI / OF: Rename of_node() and acpi_node() to to_of_node() and to_acpi_node()
Commit 8a0662d9 introduced of_node and acpi_node symbols in global namespace
but there were already ~63 of_node local variables or function parameters
(no single acpi_node though, but anyway).

After debugging undefined but used of_node local varible (which turned out
to reference static function of_node() instead) it became clear that the names
for the functions are too short and too generic for global scope.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-24 20:03:10 +02:00
Borislav Petkov eddda195dd ACPI / video: Inline acpi_video_set_dmi_backlight_type
... and kill this:

  In file included from drivers/gpu/drm/radeon/radeon_acpi.c:29:0:
  include/acpi/video.h:46:13: warning: ‘acpi_video_set_dmi_backlight_type’ defined but not used [-Wunused-function]
   static void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type)
               ^

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-24 19:59:28 +02:00
Lv Zheng 52c1d80385 ACPICA: Linuxize: Reduce divergences for 20150616 release
This patch reduces source code differences between the Linux kernel and the
ACPICA upstream so that the linuxized ACPICA 20150616 release can be
applied with reduced human intervention.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-23 15:44:53 +02:00
Rafael J. Wysocki e193cd15ae Merge branch 'acpi-cca'
* acpi-cca:
  ufs: fix TRUE and FALSE re-define build error
  megaraid_sas: fix TRUE and FALSE re-define build error
  amd-xgbe: Unify coherency checking logic with device_dma_is_coherent()
  crypto: ccp - Unify coherency checking logic with device_dma_is_coherent()
  device property: Introduces device_dma_is_coherent()
  arm64 : Introduce support for ACPI _CCA object
  ACPI / scan: Parse _CCA and setup device coherency
2015-06-19 01:17:35 +02:00
Rafael J. Wysocki 4def8a360f Merge branch 'acpi-video'
* acpi-video: (38 commits)
  ACPI / video: Make acpi_video_unregister_backlight() private
  acpi-video-detect: Remove old API
  toshiba-acpi: Port to new backlight interface selection API
  thinkpad-acpi: Port to new backlight interface selection API
  sony-laptop: Port to new backlight interface selection API
  samsung-laptop: Port to new backlight interface selection API
  msi-wmi: Port to new backlight interface selection API
  msi-laptop: Port to new backlight interface selection API
  intel-oaktrail: Port to new backlight interface selection API
  ideapad-laptop: Port to new backlight interface selection API
  fujitsu-laptop: Port to new backlight interface selection API
  eeepc-laptop: Port to new backlight interface selection API
  dell-wmi: Port to new backlight interface selection API
  dell-laptop: Port to new backlight interface selection API
  compal-laptop: Port to new backlight interface selection API
  asus-wmi: Port to new backlight interface selection API
  asus-laptop: Port to new backlight interface selection API
  apple-gmux: Port to new backlight interface selection API
  acer-wmi: Port to new backlight interface selection API
  ACPI / video: Fix acpi_video _register vs _unregister_backlight race
  ...
2015-06-19 01:17:26 +02:00
Rafael J. Wysocki 4f1fd900c2 Merge branches 'acpi-pm', 'acpi-apei', 'acpi-osl' and 'acpi-pci'
* acpi-pm:
  ACPI / PM: Add missing pm_generic_complete() invocation
  ACPI / PM: Turn power resources on and off in the right order during resume
  ACPI / PM: Rework device power management to follow ACPI 6
  ACPI / PM: Drop stale comment from acpi_power_transition()

* acpi-apei:
  GHES: Make NMI handler have a single reader
  GHES: Elliminate double-loop in the NMI handler
  GHES: Panic right after detection
  GHES: Carve out the panic functionality
  GHES: Carve out error queueing in a separate function

* acpi-osl:
  ACPI / osl: use same type for acpi_predefined_names values as in definition

* acpi-pci:
  ACPI / PCI: remove stale list_head in struct acpi_prt_entry
2015-06-19 01:16:21 +02:00
Rafael J. Wysocki 3a5cf05adf Merge branches 'acpi-init', 'acpi-pnp', 'acpi-scan', 'acpi-proc' and 'acpi-doc'
* acpi-init:
  ACPI / init: Switch over platform to the ACPI mode later

* acpi-pnp:
  ACPI / PNP: Avoid conflicting resource reservations

* acpi-scan:
  ACPI / scan: constify ACPI device ids
  ACPI / property: Define a symbol for PRP0001
  ACPI / property: Refine consistency check for PRP0001

* acpi-proc:
  ACPI / proc: make ACPI_PROCFS_POWER X86 only

* acpi-doc:
  ACPI: Constify ACPI device IDs in documentation
  ACPI / enumeration: Document the rules regarding the PRP0001 device ID
  ACPI: fix kernel-parameters ordering in Documentation
2015-06-19 01:15:49 +02:00
Hans de Goede e7d024c00a ACPI / video: Make acpi_video_unregister_backlight() private
acpi_video_unregister_backlight() is now only used by video_detect.c
which is part of the same acpi_video module as video.c, make
acpi_video_unregister_backlight() private to this module.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-19 01:12:50 +02:00
Hans de Goede 3bd6bce369 ACPI / video: Port to new backlight interface selection API
Most of the patch is moving the dmi quirks for forcing use of the
acpi-video / the native backlight interface to video_detect.c.

What remains is a nice cleanup.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-19 01:10:59 +02:00
Hans de Goede 87521e16a7 acpi-video-detect: Rewrite backlight interface selection logic
Currently we have 2 kernel commandline options + dmi-quirks in 3 places all
interacting (in interesting ways) to select which which backlight interface
to use. On the commandline we've acpi_backlight=[video|vendor] and
video.use_native_backlight=[0|1]. DMI quirks we have in
acpi/video-detect.c, acpi/video.c and drivers/platform/x86/*.c .

This commit is the first step to cleaning this up, replacing the 2 cmdline
options with just acpi_backlight=[video|vendor|native|none], and adds a
new API to video_detect.c to reflect this.

Follow up commits will also move other related code, like unregistering the
acpi_video backlight interface if it was registered before other drivers
which take priority over it are loaded, to video_detect.c where this
logic really belongs.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-19 01:10:44 +02:00
Suthikulpanit, Suravee d056267483 ACPI / scan: Parse _CCA and setup device coherency
This patch implements support for ACPI _CCA object, which is introduced in
ACPIv5.1, can be used for specifying device DMA coherency attribute.

The parsing logic traverses device namespace to parse coherency
information, and stores it in acpi_device_flags. Then uses it to call
arch_setup_dma_ops() when creating each device enumerated in DSDT
during ACPI scan.

This patch also introduces acpi_dma_is_coherent(), which provides
an interface for device drivers to check the coherency information
similarly to the of_dma_is_coherent().

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-06-15 14:40:48 +02:00
Bob Moore f3b6ced236 ACPICA: Fix for ill-formed GUID strings for NFIT tables.
ACPICA commit 60052949ba2aa7377106870da69b237193d10dc1

Error in transcription from the ACPI spec.

Link: https://github.com/acpica/acpica/commit/60052949
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>
2015-05-25 23:42:34 +02:00
Bob Moore 6c0d14680e ACPICA: acpihelp: Update for new NFIT table GUIDs.
ACPICA commit 83727bed8f715685a63a9f668e73c60496a06054

Add original UUIDs/GUIDs to the acuuid.h file.
Cleanup acpihelp output for UUIDs/GUIDs.

Link: https://github.com/acpica/acpica/commit/83727bed
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>
2015-05-25 23:42:34 +02:00
Bob Moore 1aebaa021f ACPICA: Update version to 20150515.
ACPICA commit ed4de2e8b0a5dd6fc17773a055590bff0e995588

Version 20150515.

Link: https://github.com/acpica/acpica/commit/ed4de2e8
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>
2015-05-22 03:22:21 +02:00
Bob Moore 04f8e38497 ACPICA: ACPI 6.0: Add support for NFIT table.
ACPICA commit e4e17ca361373e9b81494bb4ca697a12cef3cba6

NVDIMM Firmware Interface Table.

Link: https://github.com/acpica/acpica/commit/e4e17ca3
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>
2015-05-22 03:22:21 +02:00
Lv Zheng 80fa6cf95e ACPICA: ACPI 6.0: Add changes for DRTM table.
ACPICA commit b02b754a2b7afcd0384cb3b31f29eb1be028fe90

This patch adds support for DRTM (Dynamic Root of Trust for Measurement
table) in iasl. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/b02b754a
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>
2015-05-22 03:22:20 +02:00
Lv Zheng 874f6a723e ACPICA: ACPI 6.0: Add support for IORT table.
ACPICA commit 5de82757aef5d6163e37064033aacbce193abbca

This patch adds support for IORT (IO Remapping Table) in iasl.

Note that some field names are modified to shrink their length or the
decompiled IORT ASL will contain fields with ugly ":" alignment.

The IORT contains field definitions around "Memory Access Properties". This
patch also adds support to encode/decode it using inline table.

This patch doesn't add inline table support for the SMMU interrupt fields
due to a limitation in current ACPICA data table support. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/5de82757
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>
2015-05-22 03:22:20 +02:00
Lv Zheng 69ee810cbb ACPICA: ACPI 6.0: Add ACPI_SUB_PTR().
ACPICA commit 5de82757aef5d6163e37064033aacbce193abbca

Using a minus number with ACPI_ADD_PTR() will cause compiler warnings, such
warnings cannot be eliminated by force casting an unsigned value to a
signed value. This patch thus introduces ACPI_SUB_PTR() to be used with
minus numbers. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/5de82757
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>
2015-05-22 03:22:20 +02:00
Bob Moore 0cff8dc009 ACPICA: ACPI 6.0: Add changes for MADT table.
ACPICA commit 02cbb41232bccf7a91967140cab95d5f48291f21

New subtable type. Some additions to existing subtables.

Link: https://github.com/acpica/acpica/commit/02cbb412
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>
2015-05-22 03:22:20 +02:00
Bob Moore 9ab8cf1b69 ACPICA: ACPI 6.0: Add changes for LPIT table.
ACPICA commit d527908bb33a3ed515cfb349cbec57121deafcc8

Second subtable type was removed from the July 2014 LPIT
document.

Link: https://github.com/acpica/acpica/commit/d527908b
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>
2015-05-22 03:22:20 +02:00
Bob Moore aeb823bbac ACPICA: ACPI 6.0: Add changes for FADT table.
ACPICA commit 72b0b6741990f619f6aaa915302836b7cbb41ac4

One new 64-bit field at the end of the table.
FADT version is now 6.

Link: https://github.com/acpica/acpica/commit/72b0b674
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>
2015-05-22 03:22:19 +02:00
Bob Moore 68edb03823 ACPICA: ACPI 6.0: Add support for WPBT table.
ACPICA commit a6ccb4033b49f7aa33a17ddc41dd69d57e799fbd

Windows Platform Binary Table.

Link: https://github.com/acpica/acpica/commit/a6ccb403
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>
2015-05-22 03:22:19 +02:00
Bob Moore b6944efd63 ACPICA: ACPI 6.0: Add support for XENV table.
ACPICA commit 08c4197cf4ddd45f0c961078220b0fc19c10745c

Xen Environment table.

Link: https://github.com/acpica/acpica/commit/08c4197c
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>
2015-05-22 03:22:19 +02:00
Bob Moore 37e12657f8 ACPICA: ACPI 6.0: Add support for STAO table.
ACPICA commit 532bf402a503061afd9d80a23e1d3c8fd99b052c

_STA override table.

Link: https://github.com/acpica/acpica/commit/532bf402
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>
2015-05-22 03:22:18 +02:00
Bob Moore f38a437862 ACPICA: Additional dragon_fly BSD support.
ACPICA commit 3e93431674abe947202b0f9a0afa7b625b17caa6

Makefiles and environment defines.
This commit doesn't affect Linux builds.

Link: https://github.com/acpica/acpica/commit/3e934316
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>
2015-05-22 03:22:18 +02:00
Lv Zheng 9c82e83e6b ACPICA: Divergence: Remove redundant definitions.
There are two same "define"s in the actypes.h for ACPI_USE_NATIVE_DIVIDE,
this patch removes one of them as it is useless and is not in the ACPICA
upstream. It is likely that the useless block is there because of the
issues in the old ACPICA release process.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-05-19 02:20:23 +02:00
Rafael J. Wysocki 20dacb71ad ACPI / PM: Rework device power management to follow ACPI 6
The ACPI 6 specification has made some changes in the device power
management area.  In particular:

 * The D3hot power state is now supposed to be always available
   (instead of D3cold) and D3cold is only regarded as valid if the
   _PR3 object is present for the given device.

 * The required ordering of transitions into power states deeper than
   D0 is now such that for a transition into state Dx the _PSx method
   is supposed to be executed first, if present, and the states of
   the power resources the device depends on are supposed to be
   changed after that.

 * It is now explicitly forbidden to transition devices from
   lower-power (deeper) into higher-power (shallower) power states
   other than D0.

Those changes have been made so the specification reflects the
Windows' device power management code that the vast majority of
systems using ACPI is validated against.

To avoid artificial differences in ACPI device power management
between Windows and Linux, modify the ACPI device power management
code to follow the new specification.  Add comments explaining the
code flow in some unclear places.

This only may affect some real corner cases in which the OS behavior
expected by the firmware is different from the Windows one, but that's
quite unlikely.  The transition ordering change affects transitions
to D1 and D2 which are rarely used (if at all) and into D3hot and
D3cold for devices actually having _PR3, but those are likely to
be validated against Windows anyway.  The other changes may affect
code calling acpi_device_get_power() or acpi_device_update_power()
where ACPI_STATE_D3_HOT may be returned instead of ACPI_STATE_D3_COLD
(that's why the ACPI fan driver needs to be updated too) and since
transitions into ACPI_STATE_D3_HOT may remove power now, it is better
to avoid this one in acpi_pm_device_sleep_state() if the "no power
off" PM QoS flag is set.

The only existing user of acpi_device_can_poweroff() really cares
about the case when _PR3 is present, so the change in that function
should not cause any problems to happen too.

A plus is that PCI_D3hot can be mapped to ACPI_STATE_D3_HOT
now and the compatibility with older systems should be covered
automatically.

In any case, if any real problems result from this, it still will
be better to follow the Windows' behavior (which now is reflected
by the specification too) in general and handle the cases when it
doesn't work via quirks.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-05-16 01:55:35 +02:00
Dominik Brodowski 2bad7e27e0 ACPI / osl: use same type for acpi_predefined_names values as in definition
In the definition of struct acpi_predefined_names, value is of
type char *. Make the OSL override function also work with type
char * (or, more precisely, with a pointer to it).

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-05-14 22:16:38 +02:00
Rafael J. Wysocki 5c53b262c8 ACPI / property: Refine consistency check for PRP0001
Refine the check for the presence of the "compatible" property
if the PRP0001 device ID is present in the device's list of
ACPI/PNP IDs to also print the message if _DSD is missing
entirely or the format of it is incorrect.

One special case to take into accout is that the "compatible"
property need not be provided for devices having the PRP0001
device ID in their lists of ACPI/PNP IDs if they are ancestors
of PRP0001 devices with the "compatible" property present.
This is to cover heriarchies of device objects where the kernel
is only supposed to use a struct device representation for the
topmost one and the others represent, for example, functional
blocks of a composite device.

While at it, reduce the log level of the message to "info"
and reduce the log level of the "broken _DSD" message to
"debug" (noise reduction).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2015-05-05 15:43:07 +02:00
Olaf Hering 9e9d55e69a ACPICA: remove duplicate u8 typedef
During commit e252652fb2 ("ACPICA: acpidump: Remove integer types
translation protection.") two 'unsigned char' types got converted to 'u8'.

The result does not compile with gcc-4.5, it can not cope with duplicate
typedefs.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-28 23:58:54 +02:00
Linus Torvalds 836ee4874e Initial ACPI support for arm64:
This series introduces preliminary ACPI 5.1 support to the arm64 kernel
 using the "hardware reduced" profile. We don't support any peripherals
 yet, so it's fairly limited in scope:
 
 - Memory init (UEFI)
 - ACPI discovery (RSDP via UEFI)
 - CPU init (FADT)
 - GIC init (MADT)
 - SMP boot (MADT + PSCI)
 - ACPI Kconfig options (dependent on EXPERT)
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull initial ACPI support for arm64 from Will Deacon:
 "This series introduces preliminary ACPI 5.1 support to the arm64
  kernel using the "hardware reduced" profile.  We don't support any
  peripherals yet, so it's fairly limited in scope:

   - MEMORY init (UEFI)

   - ACPI discovery (RSDP via UEFI)

   - CPU init (FADT)

   - GIC init (MADT)

   - SMP boot (MADT + PSCI)

   - ACPI Kconfig options (dependent on EXPERT)

  ACPI for arm64 has been in development for a while now and hardware
  has been available that can boot with either FDT or ACPI tables.  This
  has been made possible by both changes to the ACPI spec to cater for
  ARM-based machines (known as "hardware-reduced" in ACPI parlance) but
  also a Linaro-driven effort to get this supported on top of the Linux
  kernel.  This pull request is the result of that work.

  These changes allow us to initialise the CPUs, interrupt controller,
  and timers via ACPI tables, with memory information and cmdline coming
  from EFI.  We don't support a hybrid ACPI/FDT scheme.  Of course,
  there is still plenty of work to do (a serial console would be nice!)
  but I expect that to happen on a per-driver basis after this core
  series has been merged.

  Anyway, the diff stat here is fairly horrible, but splitting this up
  and merging it via all the different subsystems would have been
  extremely painful.  Instead, we've got all the relevant Acks in place
  and I've not seen anything other than trivial (Kconfig) conflicts in
  -next (for completeness, I've included my resolution below).  Nearly
  half of the insertions fall under Documentation/.

  So, we'll see how this goes.  Right now, it all depends on EXPERT and
  I fully expect people to use FDT by default for the immediate future"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (31 commits)
  ARM64 / ACPI: make acpi_map_gic_cpu_interface() as void function
  ARM64 / ACPI: Ignore the return error value of acpi_map_gic_cpu_interface()
  ARM64 / ACPI: fix usage of acpi_map_gic_cpu_interface
  ARM64: kernel: acpi: honour acpi=force command line parameter
  ARM64: kernel: acpi: refactor ACPI tables init and checks
  ARM64: kernel: psci: let ACPI probe PSCI version
  ARM64: kernel: psci: factor out probe function
  ACPI: move arm64 GSI IRQ model to generic GSI IRQ layer
  ARM64 / ACPI: Don't unflatten device tree if acpi=force is passed
  ARM64 / ACPI: additions of ACPI documentation for arm64
  Documentation: ACPI for ARM64
  ARM64 / ACPI: Enable ARM64 in Kconfig
  XEN / ACPI: Make XEN ACPI depend on X86
  ARM64 / ACPI: Select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64
  clocksource / arch_timer: Parse GTDT to initialize arch timer
  irqchip: Add GICv2 specific ACPI boot support
  ARM64 / ACPI: Introduce ACPI_IRQ_MODEL_GIC and register device's gsi
  ACPI / processor: Make it possible to get CPU hardware ID via GICC
  ACPI / processor: Introduce phys_cpuid_t for CPU hardware ID
  ARM64 / ACPI: Parse MADT for SMP initialization
  ...
2015-04-24 08:23:45 -07:00
Linus Torvalds 0f5abd4020 ACPICA updates for v4.1-rc1
- Fix for a GPE handling regression on Dell Latitude D600 that
    caused GPE signaling to stop working on that machine, which
    appears to be due to a hardware glitch, but it used to work
    and it can be made work again in a relativly straightforward
    way (Rafael J Wysocki).
 
  - Fix for a mutex unlock regression related to the handling of ACPI
    tables introduced during the 3.16 development cycle (Octavian Purdila).
 
  - _REV modification to always return 2 which has been done by all
    versions of Windows since NT and the firmware people started to
    use it to distinguish between OSes in their AML and do some silly
    and wrong things on that basis (Bob Moore).
 
  - Fixes and cleanups related to the acpi_physicall_address data type
    including one stable-candidate fix for an issue occasionally occuring
    on 64-bit machines running 32-bit kernels where using offsets provided
    by the firmware may lead to address overflows (Lv Zheng).
 
  - External() opcode support infrastructure needed for recompiling
    disassembled ACPI tables in some cases including interpreter
    modification to ignore that opcode (Bob Moore).
 
  - Support for the "Windows 2015" string in _OSI (Bob Moore).
 
  - GPE debug interface change to return values read from hardware
    registers (Lv Zheng).
 
  - Removal of the __DATE__ macro usage in tools (Rasmus Villemoes).
 
  - Assorted minor fixes and cleanups (Lv Zheng, Rickard Strandqvist,
    Bob Moore).
 
 /
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Merge tag 'acpica-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPICA updates from Rafael Wysocki:
 "This updates the kernel's ACPICA code to upstream revision 20150410
  and adds a fix for a GPE handling regression introduced during the
  3.19 cycle on top of that.

  Included are two stable-candidate bug fixes (one of them fixing a 3.16
  regression), multiple other fixes and a bunch of cleanups.

  Specifics:

   - Fix for a GPE handling regression on Dell Latitude D600 that caused
     GPE signaling to stop working on that machine, which appears to be
     due to a hardware glitch, but it used to work and it can be made
     work again in a relativly straightforward way (Rafael J Wysocki).

   - Fix for a mutex unlock regression related to the handling of ACPI
     tables introduced during the 3.16 development cycle (Octavian
     Purdila).

   - _REV modification to always return 2 which has been done by all
     versions of Windows since NT and the firmware people started to use
     it to distinguish between OSes in their AML and do some silly and
     wrong things on that basis (Bob Moore).

   - Fixes and cleanups related to the acpi_physicall_address data type
     including one stable-candidate fix for an issue occasionally
     occuring on 64-bit machines running 32-bit kernels where using
     offsets provided by the firmware may lead to address overflows (Lv
     Zheng).

   - External() opcode support infrastructure needed for recompiling
     disassembled ACPI tables in some cases including interpreter
     modification to ignore that opcode (Bob Moore).

   - Support for the "Windows 2015" string in _OSI (Bob Moore).

   - GPE debug interface change to return values read from hardware
     registers (Lv Zheng).

   - Removal of the __DATE__ macro usage in tools (Rasmus Villemoes).

   - Assorted minor fixes and cleanups (Lv Zheng, Rickard Strandqvist,
     Bob Moore)"

* tag 'acpica-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  ACPICA: Store GPE register enable masks upfront
  ACPICA: Update version to 20150410.
  ACPICA: Fix a couple issues with the local printf module.
  ACPICA: Disassembler: Some cleanup of the table dump module.
  ACPICA: iASL: Add support for MSDM ACPI table.
  ACPICA: Update for SLIC ACPI table.
  ACPICA: Add "//" before ascii output of buffers.
  ACPICA: Remove unused internal AML opcode.
  ACPICA: Permanently set _REV to the value '2'.
  ACPICA: Add "Windows 2015" string to _OSI support.
  ACPICA: Add infrastructure for External() opcode.
  ACPICA: iASL: Enhancement for constant folding.
  ACPICA: iASL/Disassembler: Add option to assume table contains valid AML.
  ACPICA: Update AML Debugger global variables.
  ACPICA: Update Resource descriptor dump module.
  ACPICA: Fix a sscanf format string.
  ACPICA: Casting changes around acpi_physical_address/acpi_size.
  ACPICA: Resources: Correct conditional compilation definitions.
  ACPICA: Utilities: Correct conditional compilation definitions.
  ACPICA: Tables: Move an iasl specific table function to iasl source file.
  ...
2015-04-17 15:01:29 -04:00
Rafael J. Wysocki 0ee0d34985 ACPICA: Store GPE register enable masks upfront
It is reported that ACPI interrupts do not work any more on
Dell Latitude D600 after commit c50f13c672 (ACPICA: Save
current masks of enabled GPEs after enable register writes).
The problem turns out to be related to the fact that the
enable_mask and enable_for_run GPE bit masks are not in
sync (in the absence of any system suspend/resume events)
for at least one GPE register on that machine.

Address this problem by writing the enable_for_run mask into
enable_mask as soon as enable_for_run is updated instead of
doing that only after the subsequent register write has
succeeded.  For consistency, update acpi_hw_gpe_enable_write()
to store the bit mask to be written into the GPE register
in enable_mask unconditionally before the write.

Since the ACPI_GPE_SAVE_MASK flag is not necessary any more after
that, drop it along with the symbols depending on it.

Reported-and-tested-by: Jim Bos <jim876@xs4all.nl>
Fixes: c50f13c672 (ACPICA: Save current masks of enabled GPEs after enable register writes)
Cc: 3.19+ <stable@vger.kernel.org> # 3.19+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-15 04:00:27 +02:00
Bob Moore 2b5083e510 ACPICA: Update version to 20150410.
ACPICA commit 06198cfd96ef271f554a50f1830a5975468c39ac
ACPICA commit 8a3c1df1edb5f9fc5c940500c598c0107d30df71

Version 20150410.

Link: https://github.com/acpica/acpica/commit/06198cfd
Link: https://github.com/acpica/acpica/commit/8a3c1df1
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>
2015-04-14 14:51:56 +02:00