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Author SHA1 Message Date
Heiner Kallweit
29166faac5 ACPI: Add helper acpi_use_parent_companion 
In several drivers devices use the ACPI companion of the parent.
Add a helper for this use case to avoid code duplication.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
 2023-10-28 15:30:24 +02:00
Dave Jiang
a103f46633 acpi: Move common tables helper functions to common lib 
Some of the routines in ACPI driver/acpi/tables.c can be shared with
parsing CDAT. CDAT is a device-provided data structure that is formatted
similar to a platform provided ACPI table. CDAT is used by CXL and can
exist on platforms that do not use ACPI. Split out the common routine
from ACPI to accommodate platforms that do not support ACPI and move that
to /lib. The common routines can be built outside of ACPI if
FIRMWARE_TABLES is selected.

Link: https://lore.kernel.org/linux-cxl/CAJZ5v0jipbtTNnsA0-o5ozOk8ZgWnOg34m34a9pPenTyRLj=6A@mail.gmail.com/
Suggested-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/169713683430.2205276.17899451119920103445.stgit@djiang5-mobl3
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2023-10-27 20:48:03 -07:00
Raag Jadav
a3a62ca256 ACPI: utils: Introduce acpi_dev_uid_match() for matching _UID 
Introduce acpi_dev_uid_match() helper that matches the device with
supplied _UID string.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2023-10-24 21:49:27 +02:00
James Morse
c54e52f84d arm64, irqchip/gic-v3, ACPI: Move MADT GICC enabled check into a helper 
ACPI, irqchip and the architecture code all inspect the MADT
enabled bit for a GICC entry in the MADT.

The addition of an 'online capable' bit means all these sites need
updating.

Move the current checks behind a helper to make future updates easier.

Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Acked-by: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/E1quv5D-00AeNJ-U8@rmk-PC.armlinux.org.uk
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 2023-10-24 15:12:09 +01:00
Oza Pawandeep
4785aa8028 cpuidle, ACPI: Evaluate LPI arch_flags for broadcast timer 
Arm® Functional Fixed Hardware Specification defines LPI states,
which provide an architectural context loss flags field that can
be used to describe the context that might be lost when an LPI
state is entered.

- Core context Lost
        - General purpose registers.
        - Floating point and SIMD registers.
        - System registers, include the System register based
        - generic timer for the core.
        - Debug register in the core power domain.
        - PMU registers in the core power domain.
        - Trace register in the core power domain.
- Trace context loss
- GICR
- GICD

Qualcomm's custom CPUs preserves the architectural state,
including keeping the power domain for local timers active.
when core is power gated, the local timers are sufficient to
wake the core up without needing broadcast timer.

The patch fixes the evaluation of cpuidle arch_flags, and moves only to
broadcast timer if core context lost is defined in ACPI LPI.

Fixes: a36a7fecfe ("ACPI / processor_idle: Add support for Low Power Idle(LPI) states")
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Oza Pawandeep <quic_poza@quicinc.com>
Link: https://lore.kernel.org/r/20231003173333.2865323-1-quic_poza@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>
 2023-10-04 16:31:27 +01:00
Ard Biesheuvel
cf8e865810 arch: Remove Itanium (IA-64) architecture 
The Itanium architecture is obsolete, and an informal survey [0] reveals
that any residual use of Itanium hardware in production is mostly HP-UX
or OpenVMS based. The use of Linux on Itanium appears to be limited to
enthusiasts that occasionally boot a fresh Linux kernel to see whether
things are still working as intended, and perhaps to churn out some
distro packages that are rarely used in practice.

None of the original companies behind Itanium still produce or support
any hardware or software for the architecture, and it is listed as
'Orphaned' in the MAINTAINERS file, as apparently, none of the engineers
that contributed on behalf of those companies (nor anyone else, for that
matter) have been willing to support or maintain the architecture
upstream or even be responsible for applying the odd fix. The Intel
firmware team removed all IA-64 support from the Tianocore/EDK2
reference implementation of EFI in 2018. (Itanium is the original
architecture for which EFI was developed, and the way Linux supports it
deviates significantly from other architectures.) Some distros, such as
Debian and Gentoo, still maintain [unofficial] ia64 ports, but many have
dropped support years ago.

While the argument is being made [1] that there is a 'for the common
good' angle to being able to build and run existing projects such as the
Grid Community Toolkit [2] on Itanium for interoperability testing, the
fact remains that none of those projects are known to be deployed on
Linux/ia64, and very few people actually have access to such a system in
the first place. Even if there were ways imaginable in which Linux/ia64
could be put to good use today, what matters is whether anyone is
actually doing that, and this does not appear to be the case.

There are no emulators widely available, and so boot testing Itanium is
generally infeasible for ordinary contributors. GCC still supports IA-64
but its compile farm [3] no longer has any IA-64 machines. GLIBC would
like to get rid of IA-64 [4] too because it would permit some overdue
code cleanups. In summary, the benefits to the ecosystem of having IA-64
be part of it are mostly theoretical, whereas the maintenance overhead
of keeping it supported is real.

So let's rip off the band aid, and remove the IA-64 arch code entirely.
This follows the timeline proposed by the Debian/ia64 maintainer [5],
which removes support in a controlled manner, leaving IA-64 in a known
good state in the most recent LTS release. Other projects will follow
once the kernel support is removed.

[0] https://lore.kernel.org/all/CAMj1kXFCMh_578jniKpUtx_j8ByHnt=s7S+yQ+vGbKt9ud7+kQ@mail.gmail.com/
[1] https://lore.kernel.org/all/0075883c-7c51-00f5-2c2d-5119c1820410@web.de/
[2] https://gridcf.org/gct-docs/latest/index.html
[3] https://cfarm.tetaneutral.net/machines/list/
[4] https://lore.kernel.org/all/87bkiilpc4.fsf@mid.deneb.enyo.de/
[5] https://lore.kernel.org/all/ff58a3e76e5102c94bb5946d99187b358def688a.camel@physik.fu-berlin.de/

Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
 2023-09-11 08:13:17 +00:00
Rafael J. Wysocki
56db6a8e5a Merge branch 'acpi-pm' 
Merge ACPI power management updates for 6.6-rc1:

 - Fix and clean up suspend-to-idle interface for AMD systems (Mario
   Limonciello, Andy Shevchenko).

* acpi-pm:
  ACPI: x86: s2idle: Add a function to get LPS0 constraint for a device
  ACPI: x86: s2idle: Add for_each_lpi_constraint() helper
  ACPI: x86: s2idle: Add more debugging for AMD constraints parsing
  ACPI: x86: s2idle: Fix a logic error parsing AMD constraints table
  ACPI: x86: s2idle: Catch multiple ACPI_TYPE_PACKAGE objects
  ACPI: x86: s2idle: Post-increment variables when getting constraints
  ACPI: Adjust #ifdef for *_lps0_dev use
 2023-08-25 20:55:47 +02:00
Mario Limonciello
1c2a66d47d ACPI: x86: s2idle: Add a function to get LPS0 constraint for a device 
Other parts of the kernel may use LPS0 constraints information to make
decisions on what power state to put a device into.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
[ rjw: Rewrite kerneldoc, rearrange if () statement, edit subject and
  changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2023-08-21 20:28:20 +02:00
Mario Limonciello
3ac9b73372 ACPI: Adjust #ifdef for *_lps0_dev use 
The `#ifdef` for acpi_register_lps0_dev() currently is guarded against
`CONFIG_X86`, but actually the functions contained in the block are
specifically sleep related functions.
Adjust the guard to also check for `CONFIG_SUSPEND`.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2023-08-21 20:28:20 +02:00
YueHaibing
588b51ddc7 ACPI: Remove unused extern declaration acpi_paddr_to_node() 
This is never used since commit 1e3590e2e4 ("[PATCH] pgdat allocation
for new node add (get node id by acpi)").

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2023-08-17 19:34:34 +02:00
Linus Torvalds
94e0d43e51 More ACPI updates for 6.5-rc1 
- Make acpi_companion_match() return a const pointer and update its
    callers accordingly (Andy Shevchenko).
 
  - Move the extern declaration of the acpi_root variable to a header
    file so as to address a compiler warning (Andy Shevchenko).
 
  - Address compiler warnings in the ACPI device enumeration code by
    adding a missing header file include to it (Ben Dooks).
 
  - Refine the SMB0001 quirk in the ACPI device enumeration code so as to
    address an i2c-scmi driver regression (Andy Shevchenko).
 
  - Clean up two pieces of the ACPI device enumeration code (Andy
    Shevchenko).
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Merge tag 'acpi-6.5-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These fix a couple of compiler warnings, refine an ACPI device
  enumeration quirk to address a driver regression and clean up code.

  Specifics:

   - Make acpi_companion_match() return a const pointer and update its
     callers accordingly (Andy Shevchenko)

   - Move the extern declaration of the acpi_root variable to a header
     file so as to address a compiler warning (Andy Shevchenko)

   - Address compiler warnings in the ACPI device enumeration code by
     adding a missing header file include to it (Ben Dooks)

   - Refine the SMB0001 quirk in the ACPI device enumeration code so as
     to address an i2c-scmi driver regression (Andy Shevchenko)

   - Clean up two pieces of the ACPI device enumeration code (Andy
     Shevchenko)"

* tag 'acpi-6.5-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: scan: Use the acpi_match_acpi_device() helper
  ACPI: platform: Move SMB0001 HID to the header and reuse
  ACPI: platform: Ignore SMB0001 only when it has resources
  ACPI: bus: Introduce acpi_match_acpi_device() helper
  ACPI: scan: fix undeclared variable warnings by including sleep.h
  ACPI: bus: Constify acpi_companion_match() returned value
  ACPI: scan: Move acpi_root to internal header
 2023-07-06 22:25:06 -07:00
Andy Shevchenko
2b5ae96049 ACPI: bus: Introduce acpi_match_acpi_device() helper 
Match the ACPI device against a given list of ACPI IDs.

Subsequent changes will make use of this.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ rjw: Changelog edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2023-07-04 19:28:20 +02:00
Linus Torvalds
fc75f21645 driver core changes for 6.5-rc1 
Here are a small set of changes for 6.5-rc1 for some driver core
 changes.  Included in here are:
   - device property cleanups to make it easier to write "agnostic"
     drivers when regards to the firmware layer underneath them (DT vs.
     ACPI)
   - debugfs documentation updates
   - devres additions
   - sysfs documentation and changes to handle empty directory creation
     logic better
   - tiny kernfs optimizations
   - other tiny changes
 
 All of these have been in linux-next for a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here are a small set of changes for 6.5-rc1 for some driver core
  changes. Included in here are:

   - device property cleanups to make it easier to write "agnostic"
     drivers when regards to the firmware layer underneath them (DT vs.
     ACPI)

   - debugfs documentation updates

   - devres additions

   - sysfs documentation and changes to handle empty directory creation
     logic better

   - tiny kernfs optimizations

   - other tiny changes

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'driver-core-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  sysfs: Skip empty folders creation
  sysfs: Improve readability by following the kernel coding style
  drivers: fwnode: fix fwnode_irq_get[_byname]()
  ata: ahci_platform: Make code agnostic to OF/ACPI
  device property: Implement device_is_compatible()
  ACPI: Move ACPI_DEVICE_CLASS() to mod_devicetable.h
  base/node: Use 'property' to identify an access parameter
  driver core: device.h: add some missing kerneldocs
  kernfs: fix missing kernfs_idr_lock to remove an ID from the IDR
  isa: Remove unnecessary checks
  MAINTAINERS: add entry for auxiliary bus
  debugfs: Correct the 'debugfs_create_str' docs
  serial: qcom_geni: Comment use of devm_krealloc rather than devm_krealloc_array
  iio: adc: Use devm_krealloc_array
  hwmon: pmbus: Use devm_krealloc_array
 2023-07-03 12:56:23 -07:00
Linus Torvalds
9c3255a8f3 platform-drivers-x86 for v6.5-1 
Highlights:
  -  AMD PMC and PMF drivers:
     - Various bugfixes
     - Improved debugging support
  -  Intel PMC:
     - Refactor to support hw with multiple PMCs
     - Various other improvements / new hw support
  -  Intel Speed Select Technology (ISST):
     - TPMI Uncore Frequency + Cluster Level Power Controls
     - Various bugfixes
     - tools/intel-speed-select: Misc. improvements
  -  Dell-DDV: Add documentation
  -  INT3472 ACPI camera sensor glue code:
     - Evaluate device's _DSM method to control imaging clock
     - Drop the need to have a table with per sensor-model info
  -  Lenovo Yogabook: Refactor / rework to also support Android models
  -  Think-LMI: Multiple improvements and fixes
  -  WMI: Add proper API documentation for the WMI bus
  -  x86-android-tablets: Misc. new hw support
  -  Miscellaneous other cleanups / fixes
 
 The following is an automated git shortlog grouped by driver:
 
 ISST:
  -  Fix usage counter
  -  Reset default callback on unregister
 
 Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans:
  - Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-hans
 
 apple-gmux:
  -  don't use be32_to_cpu and cpu_to_be32
 
 asus-tf103c-dock:
  -  Switch back to use struct i2c_driver's .probe()
 
 dell-ddv:
  -  Update ABI documentation
  -  Add documentation
 
 dell-sysman:
  -  Improve instance detection
 
 gigabyte:
  -  constify pointers to hwmon_channel_info
 
 gigabyte-wmi:
  -  remove allowlist
 
 hp:
  -  constify pointers to hwmon_channel_info
 
 hp-wmi:
  -  Add thermal profile for Victus 16-d1xxx
  -  Add HP Envy special key support
  -  Add HP WMI camera switch
 
 int3472:
  -  discrete: Log a warning if the pin-numbers don't match
  -  discrete: Use FIELD_GET() on the GPIO _DSM return value
  -  discrete: Add alternative "AVDD" regulator supply name
  -  discrete: Add support for 1 GPIO regulator shared between 2 sensors
  -  discrete: Remove sensor_config-s
  -  discrete: Drop GPIO remapping support
  -  Switch back to use struct i2c_driver's .probe()
  -  Evaluate device's _DSM method to control imaging clock
 
 intel/pmc:
  -  Add Meteor Lake IOE-M PMC related maps
  -  Add Meteor Lake IOE-P PMC related maps
  -  Use SSRAM to discover pwrm base address of primary PMC
  -  Discover PMC devices
  -  Enable debugfs multiple PMC support
  -  Add support to handle multiple PMCs
  -  Combine core_init() and core_configure()
  -  Update maps for Meteor Lake P/M platforms
  -  Remove Meteor Lake S platform support
 
 lenovo-yogabook:
  -  add I2C dependency
  -  Rename lenovo-yogabook-wmi to lenovo-yogabook
  -  Add keyboard backlight control to platform driver
  -  Add platform driver support
  -  Add YB_KBD_BL_MAX define
  -  Group WMI specific code together
  -  Drop _wmi_ from remaining generic symbols
  -  Add a yogabook_toggle_digitizer_mode() helper function
  -  Abstract kbd backlight setting
  -  Stop checking adev->power.state
  -  Split probe() into generic and WMI specific parts
  -  Use PMIC LED driver for pen icon LED control
  -  Add dev local variable to probe()
  -  Store dev instead of wdev in drvdata struct
  -  Switch to DEFINE_SIMPLE_DEV_PM_OPS()
  -  Simplify gpio lookup table cleanup
  -  Set default keyboard backligh brightness on probe()
  -  Reprobe devices on remove()
  -  Fix work race on remove()
 
 mlxbf-bootctl:
  -  Add sysfs file for BlueField boot log
 
 platform/surface:
  -  surface3_power: Switch back to use struct i2c_driver's .probe()
 
 platform/x86/amd:
  -  pmc: Update metrics table info for Pink Sardine
  -  pmc: Add helper function to check the cpu id
  -  pmc: Get STB DRAM size from PMFW
  -  pmc: Pass true/false to bool argument
 
 platform/x86/amd/pmf:
  -  Fix compiler warnings in static slider
  -  Add PMF debug facilities
  -  Add PMF acpi debug support
 
 platform/x86/dell/dell-rbtn:
  -  Fix resources leaking on error path
 
 platform/x86/intel:
  -  tpmi: Remove hardcoded unit and offset
 
 platform/x86/intel-uncore-freq:
  -  tpmi: Provide cluster level control
  -  Support for cluster level controls
  -  Uncore frequency control via TPMI
 
 platform/x86/intel/pmc:
  -  Add resume callback
 
 platform/x86/intel/pmc/mtl:
  -  Put devices in D3 during resume
 
 system76:
  -  constify pointers to hwmon_channel_info
 
 think-lmi:
  -  Don't display unnecessary authentication settings
  -  Correct NVME index default
  -  Correct NVME password handling
  -  Update password fields to use BIT
  -  Update password attribute comments
  -  Correct System password interface
  -  Enable opcode support on BIOS settings
  -  mutex protection around multiple WMI calls
 
 thinkpad_acpi:
  -  Fix lkp-tests warnings for platform profiles
 
 tools/power/x86/intel-speed-select:
  -  v1.16 release
  -  Fix json formatting issue
  -  Adjust scope of core-power config
 
 toshiba:
  -  constify pointers to hwmon_channel_info
 
 wmi:
  -  Allow retrieving the number of WMI object instances
  -  Add device specific documentation
  -  Add documentation
  -  Mark GUID-based WMI interface as deprecated
  -  Add kernel doc comments
 
 x86-android-tablets:
  -  Add support for extra buttons on Cyberbook T116
  -  Add support for more then 1 gpio_key
  -  Add Lenovo Yoga Book lid switch
  -  Fix Bluetooth on Lenovo Yoga Book
  -  Add Nextbook Ares 8A data
  -  Remove unnecessary invalid_aei_gpiochip settings
  -  Add ALS sensor support for Yoga Tablet 2 1050/830 series
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Merge tag 'platform-drivers-x86-v6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:
 "AMD PMC and PMF drivers:
   - Various bugfixes
   - Improved debugging support

  Intel PMC:
   - Refactor to support hw with multiple PMCs
   - Various other improvements / new hw support

  Intel Speed Select Technology (ISST):
   - TPMI Uncore Frequency + Cluster Level Power Controls
   - Various bugfixes
   - tools/intel-speed-select: Misc improvements

  Dell-DDV: Add documentation

  INT3472 ACPI camera sensor glue code:
   - Evaluate device's _DSM method to control imaging clock
   - Drop the need to have a table with per sensor-model info

  Lenovo Yogabook:
   - Refactor / rework to also support Android models

  Think-LMI:
   - Multiple improvements and fixes

  WMI:
   - Add proper API documentation for the WMI bus

  x86-android-tablets:
   - Misc new hw support

  Miscellaneous other cleanups / fixes"

* tag 'platform-drivers-x86-v6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (91 commits)
  platform/x86:intel/pmc: Add Meteor Lake IOE-M PMC related maps
  platform/x86:intel/pmc: Add Meteor Lake IOE-P PMC related maps
  platform/x86:intel/pmc: Use SSRAM to discover pwrm base address of primary PMC
  platform/x86:intel/pmc: Discover PMC devices
  platform/x86:intel/pmc: Enable debugfs multiple PMC support
  platform/x86:intel/pmc: Add support to handle multiple PMCs
  platform/x86:intel/pmc: Combine core_init() and core_configure()
  platform/x86:intel/pmc: Update maps for Meteor Lake P/M platforms
  platform/x86/intel: tpmi: Remove hardcoded unit and offset
  platform/x86: int3472: discrete: Log a warning if the pin-numbers don't match
  platform/x86: int3472: discrete: Use FIELD_GET() on the GPIO _DSM return value
  platform/x86: int3472: discrete: Add alternative "AVDD" regulator supply name
  platform/x86: int3472: discrete: Add support for 1 GPIO regulator shared between 2 sensors
  platform/x86: int3472: discrete: Remove sensor_config-s
  platform/x86: int3472: discrete: Drop GPIO remapping support
  platform/x86: apple-gmux: don't use be32_to_cpu and cpu_to_be32
  platform/x86/dell/dell-rbtn: Fix resources leaking on error path
  platform/x86: ISST: Fix usage counter
  platform/x86: ISST: Reset default callback on unregister
  platform/x86: int3472: Switch back to use struct i2c_driver's .probe()
  ...
 2023-06-30 14:50:00 -07:00
Linus Torvalds
77b1a7f7a0 - Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in 
top-level directories.
 
 - Douglas Anderson has added a new "buddy" mode to the hardlockup
   detector.  It permits the detector to work on architectures which
   cannot provide the required interrupts, by having CPUs periodically
   perform checks on other CPUs.
 
 - Zhen Lei has enhanced kexec's ability to support two crash regions.
 
 - Petr Mladek has done a lot of cleanup on the hard lockup detector's
   Kconfig entries.
 
 - And the usual bunch of singleton patches in various places.
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Merge tag 'mm-nonmm-stable-2023-06-24-19-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-mm updates from Andrew Morton:

 - Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in top-level
   directories

 - Douglas Anderson has added a new "buddy" mode to the hardlockup
   detector. It permits the detector to work on architectures which
   cannot provide the required interrupts, by having CPUs periodically
   perform checks on other CPUs

 - Zhen Lei has enhanced kexec's ability to support two crash regions

 - Petr Mladek has done a lot of cleanup on the hard lockup detector's
   Kconfig entries

 - And the usual bunch of singleton patches in various places

* tag 'mm-nonmm-stable-2023-06-24-19-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (72 commits)
  kernel/time/posix-stubs.c: remove duplicated include
  ocfs2: remove redundant assignment to variable bit_off
  watchdog/hardlockup: fix typo in config HARDLOCKUP_DETECTOR_PREFER_BUDDY
  powerpc: move arch_trigger_cpumask_backtrace from nmi.h to irq.h
  devres: show which resource was invalid in __devm_ioremap_resource()
  watchdog/hardlockup: define HARDLOCKUP_DETECTOR_ARCH
  watchdog/sparc64: define HARDLOCKUP_DETECTOR_SPARC64
  watchdog/hardlockup: make HAVE_NMI_WATCHDOG sparc64-specific
  watchdog/hardlockup: declare arch_touch_nmi_watchdog() only in linux/nmi.h
  watchdog/hardlockup: make the config checks more straightforward
  watchdog/hardlockup: sort hardlockup detector related config values a logical way
  watchdog/hardlockup: move SMP barriers from common code to buddy code
  watchdog/buddy: simplify the dependency for HARDLOCKUP_DETECTOR_PREFER_BUDDY
  watchdog/buddy: don't copy the cpumask in watchdog_next_cpu()
  watchdog/buddy: cleanup how watchdog_buddy_check_hardlockup() is called
  watchdog/hardlockup: remove softlockup comment in touch_nmi_watchdog()
  watchdog/hardlockup: in watchdog_hardlockup_check() use cpumask_copy()
  watchdog/hardlockup: don't use raw_cpu_ptr() in watchdog_hardlockup_kick()
  watchdog/hardlockup: HAVE_NMI_WATCHDOG must implement watchdog_hardlockup_probe()
  watchdog/hardlockup: keep kernel.nmi_watchdog sysctl as 0444 if probe fails
  ...
 2023-06-28 10:59:38 -07:00
Andy Shevchenko
007cfa13e0 ACPI: Move ACPI_DEVICE_CLASS() to mod_devicetable.h 
The data type of struct acpi_device_id is defined in the
mod_devicetable.h. It's suboptimal to require user with
the almost agnostic code to include acpi.h solely for the
macro that affects the data type defined elsewhere.

Taking into account the above and for the sake of consistency
move ACPI_DEVICE_CLASS() to mod_devicetable.h.

Note, that with CONFIG_ACPI=n the ID table will be filed with data
but it does not really matter because either it won't be used, or
won't be compiled in some cases (when guarded by respective ifdeffery).

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Message-ID: <20230609154900.43024-2-andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2023-06-15 13:34:30 +02:00
Arnd Bergmann
ad1a48301f init: consolidate prototypes in linux/init.h 
The init/main.c file contains some extern declarations for functions
defined in architecture code, and it defines some other functions that are
called from architecture code with a custom prototype.  Both of those
result in warnings with 'make W=1':

init/calibrate.c:261:37: error: no previous prototype for 'calibrate_delay_is_known' [-Werror=missing-prototypes]
init/main.c:790:20: error: no previous prototype for 'mem_encrypt_init' [-Werror=missing-prototypes]
init/main.c:792:20: error: no previous prototype for 'poking_init' [-Werror=missing-prototypes]
arch/arm64/kernel/irq.c:122:13: error: no previous prototype for 'init_IRQ' [-Werror=missing-prototypes]
arch/arm64/kernel/time.c:55:13: error: no previous prototype for 'time_init' [-Werror=missing-prototypes]
arch/x86/kernel/process.c:935:13: error: no previous prototype for 'arch_post_acpi_subsys_init' [-Werror=missing-prototypes]
init/calibrate.c:261:37: error: no previous prototype for 'calibrate_delay_is_known' [-Werror=missing-prototypes]
kernel/fork.c:991:20: error: no previous prototype for 'arch_task_cache_init' [-Werror=missing-prototypes]

Add prototypes for all of these in include/linux/init.h or another
appropriate header, and remove the duplicate declarations from
architecture specific code.

[sfr@canb.auug.org.au: declare time_init_early()]
  Link: https://lkml.kernel.org/r/20230519124311.5167221c@canb.auug.org.au
Link: https://lkml.kernel.org/r/20230517131102.934196-12-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2023-06-09 17:44:16 -07:00
Sudeep Holla
fcea0ccf4f ACPI: bus: Consolidate all arm specific initialisation into acpi_arm_init() 
Move all of the ARM-specific initialization into one function namely
acpi_arm_init(), so it is not necessary to modify/update bus.c every
time a new piece of it is added.

Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/CAJZ5v0iBZRZmV_oU+VurqxnVMbFN_ttqrL=cLh0sUH+=u0PYsw@mail.gmail.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Link: https://lore.kernel.org/r/20230606093531.2746732-1-sudeep.holla@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 2023-06-08 08:07:51 +01:00
Armin Wolf
2a2b13ae50 platform/x86: wmi: Allow retrieving the number of WMI object instances 
Currently, the WMI driver core knows how many instances of a given
WMI object exist, but WMI drivers cannot access this information.
At the same time, some current and upcoming WMI drivers want to
have access to this information. Add wmi_instance_count() and
wmidev_instance_count() to allow WMI drivers to get the number of
WMI object instances.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20230430203153.5587-2-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
 2023-05-09 12:07:25 +02:00
Linus Torvalds
da46b58ff8 hyperv-next for v6.4 
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Merge tag 'hyperv-next-signed-20230424' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv updates from Wei Liu:

 - PCI passthrough for Hyper-V confidential VMs (Michael Kelley)

 - Hyper-V VTL mode support (Saurabh Sengar)

 - Move panic report initialization code earlier (Long Li)

 - Various improvements and bug fixes (Dexuan Cui and Michael Kelley)

* tag 'hyperv-next-signed-20230424' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (22 commits)
  PCI: hv: Replace retarget_msi_interrupt_params with hyperv_pcpu_input_arg
  Drivers: hv: move panic report code from vmbus to hv early init code
  x86/hyperv: VTL support for Hyper-V
  Drivers: hv: Kconfig: Add HYPERV_VTL_MODE
  x86/hyperv: Make hv_get_nmi_reason public
  x86/hyperv: Add VTL specific structs and hypercalls
  x86/init: Make get/set_rtc_noop() public
  x86/hyperv: Exclude lazy TLB mode CPUs from enlightened TLB flushes
  x86/hyperv: Add callback filter to cpumask_to_vpset()
  Drivers: hv: vmbus: Remove the per-CPU post_msg_page
  clocksource: hyper-v: make sure Invariant-TSC is used if it is available
  PCI: hv: Enable PCI pass-thru devices in Confidential VMs
  Drivers: hv: Don't remap addresses that are above shared_gpa_boundary
  hv_netvsc: Remove second mapping of send and recv buffers
  Drivers: hv: vmbus: Remove second way of mapping ring buffers
  Drivers: hv: vmbus: Remove second mapping of VMBus monitor pages
  swiotlb: Remove bounce buffer remapping for Hyper-V
  Driver: VMBus: Add Devicetree support
  dt-bindings: bus: Add Hyper-V VMBus
  Drivers: hv: vmbus: Convert acpi_device to more generic platform_device
  ...
 2023-04-27 17:17:12 -07:00
Saurabh Sengar
1f6277bf71 ACPI: bus: Add stub acpi_sleep_state_supported() in non-ACPI cases 
acpi_sleep_state_supported() is defined only when CONFIG_ACPI=y. The
function is in acpi_bus.h, and acpi_bus.h can only be used in
CONFIG_ACPI=y cases. Add the stub function to linux/acpi.h to make
compilation successful for !CONFIG_ACPI cases.

Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/1679298460-11855-3-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
 2023-04-17 19:16:22 +00:00
Rob Herring
45166620b7 ACPI: Replace irqdomain.h include with struct declarations 
linux/acpi.h includes irqdomain.h which includes of.h. Break the include
chain by replacing the irqdomain include with forward declarations for
struct irq_domain and irq_domain_ops which is sufficient for acpi.h.

of.h also includes mod_devicetable.h which many drivers implicitly
depend on. As acpi.h already includes it, just move it out of the
'#ifdef CONFIG_ACPI'.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2023-04-06 20:36:27 +02:00
Linus Torvalds
a93e884edf Driver core changes for 6.3-rc1 
Here is the large set of driver core changes for 6.3-rc1.
 
 There's a lot of changes this development cycle, most of the work falls
 into two different categories:
   - fw_devlink fixes and updates.  This has gone through numerous review
     cycles and lots of review and testing by lots of different devices.
     Hopefully all should be good now, and Saravana will be keeping a
     watch for any potential regression on odd embedded systems.
   - driver core changes to work to make struct bus_type able to be moved
     into read-only memory (i.e. const)  The recent work with Rust has
     pointed out a number of areas in the driver core where we are
     passing around and working with structures that really do not have
     to be dynamic at all, and they should be able to be read-only making
     things safer overall.  This is the contuation of that work (started
     last release with kobject changes) in moving struct bus_type to be
     constant.  We didn't quite make it for this release, but the
     remaining patches will be finished up for the release after this
     one, but the groundwork has been laid for this effort.
 
 Other than that we have in here:
   - debugfs memory leak fixes in some subsystems
   - error path cleanups and fixes for some never-able-to-be-hit
     codepaths.
   - cacheinfo rework and fixes
   - Other tiny fixes, full details are in the shortlog
 
 All of these have been in linux-next for a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the large set of driver core changes for 6.3-rc1.

  There's a lot of changes this development cycle, most of the work
  falls into two different categories:

   - fw_devlink fixes and updates. This has gone through numerous review
     cycles and lots of review and testing by lots of different devices.
     Hopefully all should be good now, and Saravana will be keeping a
     watch for any potential regression on odd embedded systems.

   - driver core changes to work to make struct bus_type able to be
     moved into read-only memory (i.e. const) The recent work with Rust
     has pointed out a number of areas in the driver core where we are
     passing around and working with structures that really do not have
     to be dynamic at all, and they should be able to be read-only
     making things safer overall. This is the contuation of that work
     (started last release with kobject changes) in moving struct
     bus_type to be constant. We didn't quite make it for this release,
     but the remaining patches will be finished up for the release after
     this one, but the groundwork has been laid for this effort.

  Other than that we have in here:

   - debugfs memory leak fixes in some subsystems

   - error path cleanups and fixes for some never-able-to-be-hit
     codepaths.

   - cacheinfo rework and fixes

   - Other tiny fixes, full details are in the shortlog

  All of these have been in linux-next for a while with no reported
  problems"

[ Geert Uytterhoeven points out that that last sentence isn't true, and
  that there's a pending report that has a fix that is queued up - Linus ]

* tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits)
  debugfs: drop inline constant formatting for ERR_PTR(-ERROR)
  OPP: fix error checking in opp_migrate_dentry()
  debugfs: update comment of debugfs_rename()
  i3c: fix device.h kernel-doc warnings
  dma-mapping: no need to pass a bus_type into get_arch_dma_ops()
  driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place
  Revert "driver core: add error handling for devtmpfs_create_node()"
  Revert "devtmpfs: add debug info to handle()"
  Revert "devtmpfs: remove return value of devtmpfs_delete_node()"
  driver core: cpu: don't hand-override the uevent bus_type callback.
  devtmpfs: remove return value of devtmpfs_delete_node()
  devtmpfs: add debug info to handle()
  driver core: add error handling for devtmpfs_create_node()
  driver core: bus: update my copyright notice
  driver core: bus: add bus_get_dev_root() function
  driver core: bus: constify bus_unregister()
  driver core: bus: constify some internal functions
  driver core: bus: constify bus_get_kset()
  driver core: bus: constify bus_register/unregister_notifier()
  driver core: remove private pointer from struct bus_type
  ...
 2023-02-24 12:58:55 -08:00
Greg Kroah-Hartman
162736b0d7 driver core: make struct device_type.uevent() take a const * 
The uevent() callback in struct device_type should not be modifying the
device that is passed into it, so mark it as a const * and propagate the
function signature changes out into all relevant subsystems that use
this callback.

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Andreas Noever <andreas.noever@gmail.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Bard Liao <yung-chuan.liao@linux.intel.com>
Cc: Chaitanya Kulkarni <kch@nvidia.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jilin Yuan <yuanjilin@cdjrlc.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Mark Gross <markgross@kernel.org>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Maximilian Luz <luzmaximilian@gmail.com>
Cc: Michael Jamet <michael.jamet@intel.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Sanyog Kale <sanyog.r.kale@intel.com>
Cc: Sean Young <sean@mess.org>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Won Chung <wonchung@google.com>
Cc: Yehezkel Bernat <YehezkelShB@gmail.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> # for Thunderbolt
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230111113018.459199-6-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2023-01-27 13:45:36 +01:00
Andy Shevchenko
1b94ad7ccc ACPI: utils: Add acpi_evaluate_dsm_typed() and acpi_check_dsm() stubs 
When the ACPI part of a driver is optional the methods used in it
are expected to be available even if CONFIG_ACPI=n. This is not
the case for _DSM related methods. Add stubs for
acpi_evaluate_dsm_typed() and acpi_check_dsm() methods.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2023-01-20 13:25:17 +00:00
Rafael J. Wysocki
6f1581810b Merge branches 'acpi-pm', 'acpi-processor', 'acpi-ec' and 'acpi-video' 
Make ACPI power management changes, ACPI processor driver updates, ACPI
EC driver quirk and ACPI backlight driver updates for 6.2-rc1:

 - Print full name paths of ACPI power resources objects during
   enumeration (Kane Chen).

 - Eliminate a compiler warning regarding a missing function prototype
   in the ACPI power management code (Sudeep Holla).

 - Fix and clean up the ACPI processor driver (Rafael Wysocki, Li Zhong,
   Colin Ian King, Sudeep Holla).

 - Add quirk for the HP Pavilion Gaming 15-cx0041ur to the ACPI EC
   driver (Mia Kanashi).

 - Add some mew ACPI backlight handling quirks and update some existing
   ones (Hans de Goede).

 - Make the ACPI backlight driver prefer the native backlight control
   over vendor backlight control when possible (Hans de Goede).

* acpi-pm:
  ACPI: PM: Silence missing prototype warning
  ACPI: PM: Print full name path while adding power resource

* acpi-processor:
  ACPI: processor: perflib: Adjust acpi_processor_notify_smm() return value
  ACPI: processor: perflib: Rearrange acpi_processor_notify_smm()
  ACPI: processor: perflib: Rearrange unregistration routine
  ACPI: processor: perflib: Drop redundant parentheses
  ACPI: processor: perflib: Adjust white space
  ACPI: processor: idle: Drop unnecessary statements and parens
  ACPI: processor: Silence missing prototype warnings
  ACPI: processor_idle: Silence missing prototype warnings
  ACPI: processor: throttling: remove variable count
  ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value

* acpi-ec:
  ACPI: EC: Add quirk for the HP Pavilion Gaming 15-cx0041ur

* acpi-video:
  ACPI: video: Prefer native over vendor
  ACPI: video: Simplify __acpi_video_get_backlight_type()
  ACPI: video: Add force_native quirk for Sony Vaio VPCY11S1E
  ACPI: video: Add force_vendor quirk for Sony Vaio PCG-FRV35
  ACPI: video: Change Sony Vaio VPCEH3U1E quirk to force_native
  ACPI: video: Change GIGABYTE GB-BXBT-2807 quirk to force_none
  ACPI: video: Add a few bugtracker links to DMI quirks
 2022-12-12 15:05:30 +01:00
Sudeep Holla
d96d30d836 ACPI: PM: Silence missing prototype warning 
Silence the following warning when built with W=1:

 | CC   drivers/acpi/device_pm.c
 |      warning: no previous prototype for function 'acpi_subsys_restore_early' [-Wmissing-prototypes]
 |              int acpi_subsys_restore_early(struct device *dev)
 |                  ^

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-11-23 19:36:07 +01:00
Sudeep Holla
3223417d1f ACPI: FFH: Silence missing prototype warnings 
Silence the following warnings when built with W=1:

 | CC   drivers/acpi/acpi_ffh.c
 |      warning: no previous prototype for 'acpi_ffh_address_space_arch_setup' [-Wmissing-prototypes]
 |              int __weak acpi_ffh_address_space_arch_setup(void *handler_ctxt,
 |                         ^
 | CC   drivers/acpi/acpi_ffh.c
 |      warning: no previous prototype for 'acpi_ffh_address_space_arch_handler' [-Wmissing-prototypes]
 |              int __weak acpi_ffh_address_space_arch_handler(acpi_integer *value,
 |                         ^

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-11-23 19:33:28 +01:00
Sudeep Holla
e81c782c16 ACPI: Implement a generic FFH Opregion handler 
This registers the FFH OpRegion handler before ACPI tables are
loaded. The platform support for the same is checked via Platform-Wide
OSPM Capabilities(OSC) before registering the OpRegion handler.

It relies on the special context data passed to offset and the length.
However the interpretation of the values is platform/architecture
specific. This generic handler just passed all the information to
the platform/architecture specific callback. It also implements the
default callbacks which return as not supported.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-11-14 19:09:07 +01:00
Linus Torvalds
3a1e24fa70 More ACPI updates for 6.1-rc1 
- Fix ACPI device object reference counting in (recently updated)
    skl_int3472_fill_clk_pdata() (Andy Shevchenko).
 
  - Fix a memory leak in APEI by avoiding to add a task_work to kernel
    threads running when an asynchronous error is detected (Shuai Xue).
 
  - Add ACPI support for handling system wakeups via GPIO wake capable
    IRQs in addition to GPEs (Raul E Rangel).
 
  - Make the system reboot code put ACPI-enabled systems into the S5
    (system off) state which is necessary for some platforms to work as
    expected (Kai-Heng Feng).
 
  - Make the white space usage in the ACPI thermal driver more consistent
    and drop redundant code from it (Rafael Wysocki).
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Merge tag 'acpi-6.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These fix two issues, in APEI and in the int3472 driver, clean up the
  ACPI thermal driver, add ACPI support for non-GPE system wakeup events
  and make the system reboot code use the S5 (system off) state by
  default.

  Specifics:

   - Fix ACPI device object reference counting in (recently updated)
     skl_int3472_fill_clk_pdata() (Andy Shevchenko).

   - Fix a memory leak in APEI by avoiding to add a task_work to kernel
     threads running when an asynchronous error is detected (Shuai Xue).

   - Add ACPI support for handling system wakeups via GPIO wake capable
     IRQs in addition to GPEs (Raul E Rangel).

   - Make the system reboot code put ACPI-enabled systems into the S5
     (system off) state which is necessary for some platforms to work as
     expected (Kai-Heng Feng).

   - Make the white space usage in the ACPI thermal driver more
     consistent and drop redundant code from it (Rafael Wysocki)"

* tag 'acpi-6.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: thermal: Drop some redundant code
  ACPI: thermal: Drop redundant parens from expressions
  ACPI: thermal: Use white space more consistently
  platform/x86: int3472: Don't leak reference on error
  ACPI: APEI: do not add task_work to kernel thread to avoid memory leak
  PM: ACPI: reboot: Reinstate S5 for reboot
  kernel/reboot: Add SYS_OFF_MODE_RESTART_PREPARE mode
  ACPI: PM: Take wake IRQ into consideration when entering suspend-to-idle
  i2c: acpi: Use ACPI wake capability bit to set wake_irq
  ACPI: resources: Add wake_capable parameter to acpi_dev_irq_flags
  gpiolib: acpi: Add wake_capable variants of acpi_dev_gpio_irq_get
 2022-10-10 13:28:06 -07:00
Rafael J. Wysocki
056a81549c Merge branches 'acpi-apei', 'acpi-wakeup', 'acpi-reboot' and 'acpi-thermal' 
Merge additional APEI changes, ACPI updates related to device wakeup and
system restart and ACPI thermal driver cleanups for 6.1-rc1:

 - Fix a memory leak in APEI by avoiding to add do not add task_work to
   kernel threads running when an asynchronous error is detected (Shuai
   Xue).

 - Add ACPI support for handling system wakeups via GPIO wake capable
   IRQs in addition to GPEs (Raul E Rangel).

 - Make the system reboot code put ACPI-enabled systems into the S5
   (system off) state which is necessary for some platforms to work as
   expected (Kai-Heng Feng).

 - Make the white space usage in the ACPI thermal driver more consistent
   and drop redundant code from it (Rafael Wysocki).

* acpi-apei:
  ACPI: APEI: do not add task_work to kernel thread to avoid memory leak

* acpi-wakeup:
  ACPI: PM: Take wake IRQ into consideration when entering suspend-to-idle
  i2c: acpi: Use ACPI wake capability bit to set wake_irq
  ACPI: resources: Add wake_capable parameter to acpi_dev_irq_flags
  gpiolib: acpi: Add wake_capable variants of acpi_dev_gpio_irq_get

* acpi-reboot:
  PM: ACPI: reboot: Reinstate S5 for reboot
  kernel/reboot: Add SYS_OFF_MODE_RESTART_PREPARE mode

* acpi-thermal:
  ACPI: thermal: Drop some redundant code
  ACPI: thermal: Drop redundant parens from expressions
  ACPI: thermal: Use white space more consistently
 2022-10-10 18:11:11 +02:00
Linus Torvalds
7fb68b6c82 platform-drivers-x86 for v6.1-1 
Highlights:
  -  AMD Platform Management Framework (PMF) driver with AMT and QnQF support
  -  AMD PMC: Improved logging for debugging s2idle issues
  -  Big refactor of the ACPI/x86 backlight handling, ensuring that we only
     register 1 /sys/class/backlight device per LCD panel
  -  Microsoft Surface:
     -  Surface Laptop Go 2 support
     -  Surface Pro 8 HID sensor support
  -  Asus WMI:
     -  Lots of cleanups
     -  Support for TUF RGB keyboard backlight control
     -  Add support for ROG X13 tablet mode
  -  Siemens Simatic: IPC227G and IPC427G support
  -  Toshiba ACPI laptop driver: Fan hwmon and battery ECO mode support
  -  tools/power/x86/intel-speed-select: Various improvements
  -  Various cleanups
  -  Various small bugfixes
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI:
  -  video: Change disable_backlight_sysfs_if quirks to acpi_backlight=native
  -  s2idle: Add a new ->check() callback for platform_s2idle_ops
  -  video: Fix indentation of video_detect_dmi_table[] entries
  -  video: Drop NL5x?U, PF4NU1F and PF5?U?? acpi_backlight=native quirks
  -  video: Drop "Samsung X360" acpi_backlight=native quirk
  -  video: Remove acpi_video_set_dmi_backlight_type()
  -  video: Add Apple GMUX brightness control detection
  -  video: Add Nvidia WMI EC brightness control detection (v3)
  -  video: Refactor acpi_video_get_backlight_type() a bit
  -  video: Remove code to unregister acpi_video backlight when a native backlight registers
  -  video: Make backlight class device registration a separate step (v2)
  -  video: Simplify acpi_video_unregister_backlight()
  -  video: Remove acpi_video_bus from list before tearing it down
  -  video: Drop backlight_device_get_by_type() call from acpi_video_get_backlight_type()
  -  video: Add acpi_video_backlight_use_native() helper
 
 acer-wmi:
  -  Move backlight DMI quirks to acpi/video_detect.c
  -  Acer Aspire One AOD270/Packard Bell Dot keymap fixes
 
 apple-gmux:
  -  Stop calling acpi/video.h functions
 
 asus-wmi:
  -  Expand support of GPU fan to read RPM and label
  -  Make kbd_rgb_mode_groups static
  -  Move acpi_backlight=native quirks to ACPI video_detect.c
  -  Move acpi_backlight=vendor quirks to ACPI video_detect.c
  -  Drop DMI chassis-type check from backlight handling
  -  Increase FAN_CURVE_BUF_LEN to 32
  -  Fix the name of the mic-mute LED classdev
  -  Implement TUF laptop keyboard power states
  -  Implement TUF laptop keyboard LED modes
  -  Support the GPU fan on TUF laptops
  -  Modify behaviour of Fn+F5 fan key
  -  Update tablet_mode_sw module-param help text
  -  Simplify tablet-mode-switch handling
  -  Simplify tablet-mode-switch probing
  -  Add support for ROG X13 tablet mode
  -  Adjust tablet/lidflip handling to use enum
  -  Support the hardware GPU MUX on some laptops
  -  Simplify some of the *_check_present() helpers
  -  Refactor panel_od attribute
  -  Refactor egpu_enable attribute
  -  Refactor disable_gpu attribute
  -  Document the panel_od sysfs attribute
  -  Document the egpu_enable sysfs attribute
  -  Document the dgpu_disable sysfs attribute
  -  Use kobj_to_dev()
  -  Convert all attr-show to use sysfs_emit
 
 compal-laptop:
  -  Get rid of a few forward declarations
 
 dell-privacy:
  -  convert to use dev_groups
 
 dell-smbios-base:
  -  Use sysfs_emit()
 
 dell-wmi:
  -  Add WMI event 0x0012 0x0003 to the list
 
 docs:
  -  ABI: charge_control_end_threshold may not support all values
 
 drivers/platform:
  -  toshiba_acpi: Call HCI_PANEL_POWER_ON on resume on some models
 
 drm/amdgpu:
  -  Register ACPI video backlight when skipping amdgpu backlight registration
  -  Don't register backlight when another backlight should be used (v3)
 
 drm/i915:
  -  Call acpi_video_register_backlight() (v3)
  -  Don't register backlight when another backlight should be used (v2)
 
 drm/nouveau:
  -  Register ACPI video backlight when nv_backlight registration fails (v2)
  -  Don't register backlight when another backlight should be used (v2)
 
 drm/radeon:
  -  Register ACPI video backlight when skipping radeon backlight registration
  -  Don't register backlight when another backlight should be used (v3)
 
 drm/todo:
  -  Add entry about dealing with brightness control on devices with > 1 panel
 
 gpio-f7188x:
  -  use unique labels for banks/chips
  -  Add GPIO support for Nuvoton NCT6116
  -  add a prefix to macros to keep gpio namespace clean
  -  switch over to using pr_fmt
 
 hp-wmi:
  -  Support touchpad on/off
  -  Setting thermal profile fails with 0x06
 
 int3472/discrete:
  -  Drop a forward declaration
 
 intel-uncore-freq:
  -  Use sysfs_emit() to instead of scnprintf()
 
 intel_cht_int33fe:
  -  Fix comment according to the code flow
 
 leds:
  -  simatic-ipc-leds-gpio: Make simatic_ipc_led_gpio_table static
  -  simatic-ipc-leds-gpio: add new model 227G
 
 move from strlcpy with unused retval to strscpy:
  - move from strlcpy with unused retval to strscpy
 
 msi-laptop:
  -  Change DMI match / alias strings to fix module autoloading
  -  Add msi_scm_disable_hw_fn_handling() helper
  -  Add msi_scm_model_exit() helper
  -  Fix resource cleanup
  -  Simplify ec_delay handling
  -  Fix old-ec check for backlight registering
  -  Drop MSI_DRIVER_VERSION
  -  Use MODULE_DEVICE_TABLE()
 
 nvidia-wmi-ec-backlight:
  -  Use acpi_video_get_backlight_type()
  -  Move fw interface definitions to a header (v2)
 
 p2sb:
  -  Fix UAF when caller uses resource name
 
 platform/mellanox:
  -  mlxreg-lc: Make error handling flow consistent
  -  Remove redundant 'NULL' check
  -  Remove unnecessary code
  -  mlxreg-lc: Fix locking issue
  -  mlxreg-lc: Fix coverity warning
 
 platform/surface:
  -  Split memcpy() of struct ssam_event flexible array
  -  aggregator_registry: Add HID devices for sensors and UCSI client to SP8
  -  aggregator_registry: Rename HID device nodes based on new findings
  -  aggregator_registry: Rename HID device nodes based on their function
  -  aggregator_registry: Add support for Surface Laptop Go 2
 
 platform/x86:
  - use PLATFORM_DEVID_NONE instead of -1
 
 platform/x86/amd:
  -  pmc: Dump idle mask during "check" stage instead
  -  pmc: remove CONFIG_DEBUG_FS checks
  -  pmc: Fix build without debugfs
  -  pmc: Add sysfs files for SMU
  -  pmc: Add an extra STB message for checking s2idle entry
  -  pmc: Always write to the STB
  -  pmc: Add defines for STB events
 
 platform/x86/amd/pmf:
  -  Remove unused power_delta instances
  -  install notify handler after acpi init
  -  Add sysfs to toggle CnQF
  -  Add support for CnQF
  -  Fix clang unused variable warning
  -  Fix undefined reference to platform_profile
  -  Force load driver on older supported platforms
  -  Handle AMT and CQL events for Auto mode
  -  Add support for Auto mode feature
  -  Get performance metrics from PMFW
  -  Add fan control support
  -  Add heartbeat signal support
  -  Add debugfs information
  -  Add support SPS PMF feature
  -  Add support for PMF APCI layer
  -  Add support for PMF core layer
  -  Add ABI doc for AMD PMF
  -  Add AMD PMF driver entry
 
 platform/x86/intel/wmi:
  -  thunderbolt: Use dev_groups callback
 
 pmc_atom:
  -  Amend comment style and grammar
  -  Make terminator entry uniform
  -  Improve quirk message to be less cryptic
  -  Fix SLP_TYPx bitfield mask
 
 samsung-laptop:
  -  Move acpi_backlight=[vendor|native] quirks to ACPI video_detect.c
 
 simatic-ipc:
  -  add new model 427G
  -  enable watchdog for 227G
 
 thinkpad_acpi:
  -  Explicitly set to balanced mode on startup
 
 tools/power/x86/intel-speed-select:
  -  Release v1.13
  -  Optimize CPU initialization
  -  Utilize cpu_map to get physical id
  -  Remove unused struct clos_config fields
  -  Enforce isst_id value
  -  Do not export get_physical_id
  -  Introduce is_cpu_in_power_domain helper
  -  Cleanup get_physical_id usage
  -  Convert more function to use isst_id
  -  Add pkg and die in isst_id
  -  Introduce struct isst_id
  -  Remove unused core_mask array
  -  Remove dead code
  -  Fix cpu count for TDP level display
 
 toshiba_acpi:
  -  change turn_on_panel_on_resume to static
  -  Remove duplicate include
  -  Set correct parent for input device.
  -  Add fan RPM reading (hwmon interface)
  -  Add fan RPM reading (internals)
  -  Stop using acpi_video_set_dmi_backlight_type()
  -  Fix ECO LED control on Toshiba Z830
  - Battery charge mode in toshiba_acpi (internals)
  - Battery charge mode in toshiba_acpi (sysfs)
 
 wmi:
  -  Drop forward declaration of static functions
  -  Allow duplicate GUIDs for drivers that use struct wmi_driver
 
 x86-android-tablets:
  -  Fix broken touchscreen on Chuwi Hi8 with Windows BIOS
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Merge tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:

 - AMD Platform Management Framework (PMF) driver with AMT and QnQF
   support

 - AMD PMC: Improved logging for debugging s2idle issues

 - Big refactor of the ACPI/x86 backlight handling, ensuring that we
   only register 1 /sys/class/backlight device per LCD panel

 - Microsoft Surface:
    - Surface Laptop Go 2 support
    - Surface Pro 8 HID sensor support

 - Asus WMI:
    - Lots of cleanups
    - Support for TUF RGB keyboard backlight control
    - Add support for ROG X13 tablet mode

 - Siemens Simatic: IPC227G and IPC427G support

 - Toshiba ACPI laptop driver: Fan hwmon and battery ECO mode support

 - tools/power/x86/intel-speed-select: Various improvements

 - Various cleanups

 - Various small bugfixes

* tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (153 commits)
  platform/x86: use PLATFORM_DEVID_NONE instead of -1
  platform/x86/amd: pmc: Dump idle mask during "check" stage instead
  platform/x86/intel/wmi: thunderbolt: Use dev_groups callback
  platform/x86/amd: pmc: remove CONFIG_DEBUG_FS checks
  platform/surface: Split memcpy() of struct ssam_event flexible array
  platform/x86: compal-laptop: Get rid of a few forward declarations
  platform/x86: intel-uncore-freq: Use sysfs_emit() to instead of scnprintf()
  platform/x86: dell-smbios-base: Use sysfs_emit()
  platform/x86/amd/pmf: Remove unused power_delta instances
  platform/x86/amd/pmf: install notify handler after acpi init
  Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF
  platform/x86/amd/pmf: Add sysfs to toggle CnQF
  platform/x86/amd/pmf: Add support for CnQF
  platform/x86/amd: pmc: Fix build without debugfs
  platform/x86: hp-wmi: Support touchpad on/off
  platform/x86: int3472/discrete: Drop a forward declaration
  platform/x86: toshiba_acpi: change turn_on_panel_on_resume to static
  platform/x86: wmi: Drop forward declaration of static functions
  platform/x86: toshiba_acpi: Remove duplicate include
  platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading
  ...
 2022-10-05 10:38:24 -07:00
Raul E Rangel
5ff811604f ACPI: resources: Add wake_capable parameter to acpi_dev_irq_flags 
ACPI IRQ/Interrupt resources contain a bit that describes if the
interrupt should wake the system. This change exposes that bit via
a new IORESOURCE_IRQ_WAKECAPABLE flag. Drivers should check this flag
before arming an IRQ to wake the system.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-10-04 15:41:12 +02:00
Raul E Rangel
4c99256013 gpiolib: acpi: Add wake_capable variants of acpi_dev_gpio_irq_get 
The ACPI spec defines the SharedAndWake and ExclusiveAndWake share type
keywords. This is an indication that the GPIO IRQ can also be used as a
wake source. This change exposes the wake_capable bit so drivers can
correctly enable wake functionality instead of making an assumption.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-10-04 15:41:12 +02:00
Rafael J. Wysocki
4aa497ca10 Merge branch 'acpi-uid' 
Merge ACPI _UID handling unification changes for 6.1-rc1:

 - Introduce acpi_dev_uid_to_integer() to convert a _UID string into an
   integer value (Andy Shevchenko).

 - Use acpi_dev_uid_to_integer() in several places to unify _UID
   handling (Andy Shevchenko).

* acpi-uid:
  efi/dev-path-parser: Refactor _UID handling to use acpi_dev_uid_to_integer()
  spi: pxa2xx: Refactor _UID handling to use acpi_dev_uid_to_integer()
  perf: qcom_l2_pmu: Refactor _UID handling to use acpi_dev_uid_to_integer()
  i2c: mlxbf: Refactor _UID handling to use acpi_dev_uid_to_integer()
  i2c: amd-mp2-plat: Refactor _UID handling to use acpi_dev_uid_to_integer()
  ACPI: x86: Refactor _UID handling to use acpi_dev_uid_to_integer()
  ACPI: LPSS: Refactor _UID handling to use acpi_dev_uid_to_integer()
  ACPI: utils: Add acpi_dev_uid_to_integer() helper to get _UID as integer
 2022-10-03 20:09:22 +02:00
Rafael J. Wysocki
c77f54a9bc Merge branches 'acpi-scan', 'acpi-bus' and 'acpi-platform' 
Merge changes related to ACPI device enumeration and ACPI support for
platform devices for 6.1-rc1:

 - Clean up ACPI platform devices support code (Andy Shevchenko, John
   Garry).

 - Clean up ACPI bus management code (Andy Shevchenko, ye xingchen).

 - Add support for multiple DMA windows with different offsets to the
   ACPI device enumeration code and use it on LoongArch (Jianmin Lv).

* acpi-scan:
  LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA
  ACPI: scan: Support multiple DMA windows with different offsets

* acpi-bus:
  ACPI: bus: Refactor ACPI matching functions for better readability
  ACPI: bus: Drop kernel doc annotation from acpi_bus_notify()
  ACPI: bus: Remove the unneeded result variable

* acpi-platform:
  ACPI: platform: Use PLATFORM_DEVID_NONE in acpi_create_platform_device()
  ACPI: platform: Sort forbidden_id_list[] in ascending order
  ACPI: platform: Use sizeof(*pointer) instead of sizeof(type)
  ACPI: platform: Remove redundant print on -ENOMEM
  ACPI: platform: Get rid of redundant 'else'
 2022-09-30 20:28:22 +02:00
Jianmin Lv
c78c43fe7d LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA 
Use _DMA defined in ACPI spec for translation between
DMA address and CPU address, and implement acpi_arch_dma_setup
for initializing dev->dma_range_map, where acpi_dma_get_range
is called for parsing _DMA.

e.g.
If we have two dma ranges:
cpu address      dma address    size         offset
0x200080000000   0x2080000000   0x400000000  0x1fe000000000
0x400080000000   0x4080000000   0x400000000  0x3fc000000000

_DMA for pci devices should be declared in host bridge as
flowing:

Name (_DMA, ResourceTemplate() {
        QWordMemory (ResourceProducer,
            PosDecode,
            MinFixed,
            MaxFixed,
            NonCacheable,
            ReadWrite,
            0x0,
            0x4080000000,
            0x447fffffff,
            0x3fc000000000,
            0x400000000,
            ,
            ,
            )

        QWordMemory (ResourceProducer,
            PosDecode,
            MinFixed,
            MaxFixed,
            NonCacheable,
            ReadWrite,
            0x0,
            0x2080000000,
            0x247fffffff,
            0x1fe000000000,
            0x400000000,
            ,
            ,
            )
    })

Acked-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-09-24 18:39:21 +02:00
Jianmin Lv
bf2ee8d0c3 ACPI: scan: Support multiple DMA windows with different offsets 
In DT systems configurations, of_dma_get_range() returns struct
bus_dma_region DMA regions; they are used to set-up devices
DMA windows with different offset available for translation between DMA
address and CPU address.

In ACPI systems configuration, acpi_dma_get_range() does not return
DMA regions yet and that precludes setting up the dev->dma_range_map
pointer and therefore DMA regions with multiple offsets.

Update acpi_dma_get_range() to return struct bus_dma_region
DMA regions like of_dma_get_range() does.

After updating acpi_dma_get_range(), acpi_arch_dma_setup() is changed for
ARM64, where the original dma_addr and size are removed as these
arguments are now redundant, and pass 0 and U64_MAX for dma_base
and size of arch_setup_dma_ops; this is a simplification consistent
with what other ACPI architectures also pass to iommu_setup_dma_ops().

Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-09-24 18:39:21 +02:00
Andy Shevchenko
5db72fdb74 ACPI: utils: Add acpi_dev_uid_to_integer() helper to get _UID as integer 
Some users interpret _UID only as integer and for them it's easier to
have an integer representation of _UID. Add respective helper for that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-09-19 18:34:42 +02:00
Heikki Krogerus
6bb057bfd9 ACPI: resource: Add helper function acpi_dev_get_memory_resources() 
Wrapper function that finds all memory type resources by
using acpi_dev_get_resources(). It removes the need for the
drivers to check the resource data type separately.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-09-10 18:22:24 +02:00
Mario Limonciello
811d59fdf5 ACPI: s2idle: Add a new ->check() callback for platform_s2idle_ops 
On some platforms it is found that Linux more aggressively enters s2idle
than Windows enters Modern Standby and this uncovers some synchronization
issues for the platform.  To aid in debugging this class of problems in
the future, add support for an extra optional callback intended for
drivers to emit extra debugging.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20220829162953.5947-2-mario.limonciello@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
 2022-09-09 17:37:40 +02:00
Linus Torvalds
e091ba5cf8 More ACPI updates for 5.20-rc1 
- Replace direct references to the fwnode field in struct device with
    dev_fwnode() and device_match_fwnode() (Andy Shevchenko).
 
  - Make the ACPI code handling device properties support properties
    with buffer values (Sakari Ailus).
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Merge tag 'acpi-5.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These fix up direct references to the fwnode field in struct device
  and extend ACPI device properties support.

  Specifics:

   - Replace direct references to the fwnode field in struct device with
     dev_fwnode() and device_match_fwnode() (Andy Shevchenko)

   - Make the ACPI code handling device properties support properties
     with buffer values (Sakari Ailus)"

* tag 'acpi-5.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: property: Fix error handling in acpi_init_properties()
  ACPI: VIOT: Do not dereference fwnode in struct device
  ACPI: property: Read buffer properties as integers
  ACPI: property: Add support for parsing buffer property UUID
  ACPI: property: Unify integer value reading functions
  ACPI: property: Switch node property referencing from ifs to a switch
  ACPI: property: Move property ref argument parsing into a new function
  ACPI: property: Use acpi_object_type consistently in property ref parsing
  ACPI: property: Tie data nodes to acpi handles
  ACPI: property: Return type of acpi_add_nondev_subnodes() should be bool
 2022-08-11 13:26:09 -07:00
Rafael J. Wysocki
da2679f26b Merge branch 'acpi-properties' 
Merge changes adding support for device properties with buffer values
to the ACPI device properties handling code.

* acpi-properties:
  ACPI: property: Fix error handling in acpi_init_properties()
  ACPI: property: Read buffer properties as integers
  ACPI: property: Add support for parsing buffer property UUID
  ACPI: property: Unify integer value reading functions
  ACPI: property: Switch node property referencing from ifs to a switch
  ACPI: property: Move property ref argument parsing into a new function
  ACPI: property: Use acpi_object_type consistently in property ref parsing
  ACPI: property: Tie data nodes to acpi handles
  ACPI: property: Return type of acpi_add_nondev_subnodes() should be bool
 2022-08-11 19:21:03 +02:00
Linus Torvalds
668c3c237f sound updates for 6.0-rc1 
As diffstat shows, we've had lots of developments in a wide range
 at this time; the majority of changes are about ASoC, including
 subsystem-wide cleanups, continued SOF / Intel updates and a
 bunch of new drivers (as usual), while there have been some
 significant (but almost invisible) improvements in ALSA core
 side, too.  Below are some highlights:
 
 Core:
 - Faster lookups of control elements with Xarray; normal user
   won't notice, but on the devices with tons of control elements,
   it can be visibly faster
 - Support for input validation for controls; this will harden
   for badly written drivers in general with a slight overhead
 - Deferred async signal handling for working around the potential
   deadlocks
 - Cleanup / refactoring raw MIDI locking code
 
 ASoC:
 - Restructing of the set_fmt() callbacks for making things clearer
   in situations like CODEC to CODEC links
 - Clean up and modernizing the DAI naming scheme setups
 - Merge of more of the Intel AVS driver stack, including some
   board integrations
 - New version 4 mechanism for communication with SOF DSPs
 - Suppoort for dynamically selecting the PLL to use at runtime on
   i.MX platforms
 - Improvements for CODEC to CODEC support in the generic cards
 - Support for AMD Jadeite and various machines, AMD RPL, Intel
   MetorLake DSPs, Mediatek MT8186 DSPs and MT6366, nVidia Tegra
   MDDRC, OPE and PEQ, NXP TFA9890, Qualcomm SDM845, WCD9335 and
   WAS883x, and Texas Instruments TAS2780
 
 HD- and USB-audio:
 - Continued improvement for CS35L41 (sub)codec support
 - More quirks for various devices (HP, Lenovo, Dell, Clevo)
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Merge tag 'sound-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "As the diffstat shows, we've had lots of developments in a wide range
  at this time; the majority of changes are about ASoC, including
  subsystem-wide cleanups, continued SOF / Intel updates and a bunch of
  new drivers (as usual), while there have been some significant (but
  almost invisible) improvements in ALSA core side, too.

  Below are some highlights:

  Core:

   - Faster lookups of control elements with Xarray; normal user won't
     notice, but on the devices with tons of control elements, it can be
     visibly faster

   - Support for input validation for controls; this will harden for
     badly written drivers in general with a slight overhead

   - Deferred async signal handling for working around the potential
     deadlocks

   - Cleanup / refactoring raw MIDI locking code

  ASoC:

   - Restructing of the set_fmt() callbacks for making things clearer in
     situations like CODEC to CODEC links

   - Clean up and modernizing the DAI naming scheme setups

   - Merge of more of the Intel AVS driver stack, including some board
     integrations

   - New version 4 mechanism for communication with SOF DSPs

   - Suppoort for dynamically selecting the PLL to use at runtime on
     i.MX platforms

   - Improvements for CODEC to CODEC support in the generic cards

   - Support for AMD Jadeite and various machines, AMD RPL, Intel
     MetorLake DSPs, Mediatek MT8186 DSPs and MT6366, nVidia Tegra
     MDDRC, OPE and PEQ, NXP TFA9890, Qualcomm SDM845, WCD9335 and
     WAS883x, and Texas Instruments TAS2780

  HD- and USB-audio:

   - Continued improvement for CS35L41 (sub)codec support

   - More quirks for various devices (HP, Lenovo, Dell, Clevo)"

* tag 'sound-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (778 commits)
  ALSA: hda/realtek: Add quirk for HP Spectre x360 15-eb0xxx
  ALSA: line6: Replace sprintf() with sysfs_emit()
  ALSA: hda: Replace sprintf() with sysfs_emit()
  ALSA: pcm: Replace sprintf() with sysfs_emit()
  ALSA: core: Replace scnprintf() with sysfs_emit()
  ALSA: control-led: Replace sprintf() with sysfs_emit()
  ALSA: aoa: Replace sprintf() with sysfs_emit()
  ALSA: ac97: Replace sprintf() with sysfs_emit()
  ALSA: hda/realtek: Add quirk for Clevo NV45PZ
  ALSA: hda/realtek: Add quirk for Lenovo Yoga9 14IAP7
  ALSA: control: Use deferred fasync helper
  ALSA: pcm: Use deferred fasync helper
  ALSA: timer: Use deferred fasync helper
  ALSA: core: Add async signal helpers
  ASoC: q6asm: use kcalloc() instead of kzalloc()
  ACPI: scan: Add CLSA0101 Laptop Support
  ALSA: hda: cs35l41: Support CLSA0101
  ALSA: hda: cs35l41: Use the CS35L41 HDA internal define
  ASoC: dt-bindings: use spi-peripheral-props.yaml
  ASoC: codecs: va-macro: use fsgen as clock
  ...
 2022-08-06 10:19:51 -07:00
Linus Torvalds
cfeafd9466 Driver core / kernfs changes for 6.0-rc1 
Here is the set of driver core and kernfs changes for 6.0-rc1.
 
 "biggest" thing in here is some scalability improvements for kernfs for
 large systems.  Other than that, included in here are:
 	- arch topology and cache info changes that have been reviewed
 	  and discussed a lot.
 	- potential error path cleanup fixes
 	- deferred driver probe cleanups
 	- firmware loader cleanups and tweaks
 	- documentation updates
 	- other small things
 
 All of these have been in the linux-next tree for a while with no
 reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core / kernfs updates from Greg KH:
 "Here is the set of driver core and kernfs changes for 6.0-rc1.

  The "biggest" thing in here is some scalability improvements for
  kernfs for large systems. Other than that, included in here are:

   - arch topology and cache info changes that have been reviewed and
     discussed a lot.

   - potential error path cleanup fixes

   - deferred driver probe cleanups

   - firmware loader cleanups and tweaks

   - documentation updates

   - other small things

  All of these have been in the linux-next tree for a while with no
  reported problems"

* tag 'driver-core-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (63 commits)
  docs: embargoed-hardware-issues: fix invalid AMD contact email
  firmware_loader: Replace kmap() with kmap_local_page()
  sysfs docs: ABI: Fix typo in comment
  kobject: fix Kconfig.debug "its" grammar
  kernfs: Fix typo 'the the' in comment
  docs: driver-api: firmware: add driver firmware guidelines. (v3)
  arch_topology: Fix cache attributes detection in the CPU hotplug path
  ACPI: PPTT: Leave the table mapped for the runtime usage
  cacheinfo: Use atomic allocation for percpu cache attributes
  drivers/base: fix userspace break from using bin_attributes for cpumap and cpulist
  MAINTAINERS: Change mentions of mpm to olivia
  docs: ABI: sysfs-devices-soc: Update Lee Jones' email address
  docs: ABI: sysfs-class-pwm: Update Lee Jones' email address
  Documentation/process: Add embargoed HW contact for LLVM
  Revert "kernfs: Change kernfs_notify_list to llist."
  ACPI: Remove the unused find_acpi_cpu_cache_topology()
  arch_topology: Warn that topology for nested clusters is not supported
  arch_topology: Add support for parsing sockets in /cpu-map
  arch_topology: Set cluster identifier in each core/thread from /cpu-map
  arch_topology: Limit span of cpu_clustergroup_mask()
  ...
 2022-08-04 11:31:20 -07:00
Linus Torvalds
9de1f9c8ca Updates for interrupt core and drivers: 
core:
    - Fix a few inconsistencies between UP and SMP vs. interrupt affinities
    - Small updates and cleanups all over the place
 
  drivers:
    - New driver for the LoongArch interrupt controller
    - New driver for the Renesas RZ/G2L interrupt controller
 
    - Hotpath optimization for SiFive PLIC
    - Workaround for broken PLIC edge triggered interrupts
 
    - Simall cleanups and improvements as usual
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Merge tag 'irq-core-2022-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "Updates for interrupt core and drivers:

  Core:

   - Fix a few inconsistencies between UP and SMP vs interrupt
     affinities

   - Small updates and cleanups all over the place

  New drivers:

   - LoongArch interrupt controller

   - Renesas RZ/G2L interrupt controller

  Updates:

   - Hotpath optimization for SiFive PLIC

   - Workaround for broken PLIC edge triggered interrupts

   - Simall cleanups and improvements as usual"

* tag 'irq-core-2022-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
  irqchip/mmp: Declare init functions in common header file
  irqchip/mips-gic: Check the return value of ioremap() in gic_of_init()
  genirq: Use for_each_action_of_desc in actions_show()
  irqchip / ACPI: Introduce ACPI_IRQ_MODEL_LPIC for LoongArch
  irqchip: Add LoongArch CPU interrupt controller support
  irqchip: Add Loongson Extended I/O interrupt controller support
  irqchip/loongson-liointc: Add ACPI init support
  irqchip/loongson-pch-msi: Add ACPI init support
  irqchip/loongson-pch-pic: Add ACPI init support
  irqchip: Add Loongson PCH LPC controller support
  LoongArch: Prepare to support multiple pch-pic and pch-msi irqdomain
  LoongArch: Use ACPI_GENERIC_GSI for gsi handling
  genirq/generic_chip: Export irq_unmap_generic_chip
  ACPI: irq: Allow acpi_gsi_to_irq() to have an arch-specific fallback
  APCI: irq: Add support for multiple GSI domains
  LoongArch: Provisionally add ACPICA data structures
  irqdomain: Use hwirq_max instead of revmap_size for NOMAP domains
  irqdomain: Report irq number for NOMAP domains
  irqchip/gic-v3: Fix comment typo
  dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/V2L SoC
  ...
 2022-08-01 12:48:15 -07:00
Sakari Ailus
103e10c69c ACPI: property: Add support for parsing buffer property UUID 
Add support for newly added buffer property UUID, as defined in the DSD
guide section 3.3 [1]

Link: https://github.com/UEFI/DSD-Guide/blob/main/src/dsd-guide.adoc#buffer-data-extension-uuid # [1]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-07-27 21:16:32 +02:00
Jianmin Lv
e8bba72b39 irqchip / ACPI: Introduce ACPI_IRQ_MODEL_LPIC for LoongArch 
For LoongArch, ACPI_IRQ_MODEL_LPIC is introduced, and then the
callback acpi_get_gsi_domain_id and acpi_gsi_to_irq_fallback are
implemented.

The acpi_get_gsi_domain_id callback returns related fwnode handle
of irqdomain for different GSI range.

The acpi_gsi_to_irq_fallback will create new mapping for gsi when
the mapping of it is not found.

Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1658314292-35346-14-git-send-email-lvjianmin@loongson.cn
 2022-07-20 12:09:21 +01:00
Marc Zyngier
744b9a0c3c ACPI: irq: Allow acpi_gsi_to_irq() to have an arch-specific fallback 
It appears that the generic version of acpi_gsi_to_irq() doesn't
fallback to establishing a mapping if there is no pre-existing
one while the x86 version does.

While arm64 seems unaffected by it, LoongArch is relying on the x86
behaviour. In an effort to prevent new architectures from reinventing
the proverbial wheel, provide an optional callback that the arch code
can set to restore the x86 behaviour.

Hopefully we can eventually get rid of this in the future once
the expected behaviour has been clarified.

Reported-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/1658314292-35346-4-git-send-email-lvjianmin@loongson.cn
 2022-07-20 12:05:17 +01:00
Marc Zyngier
7327b16f5f APCI: irq: Add support for multiple GSI domains 
In an unfortunate departure from the ACPI spec, the LoongArch
architecture split its GSI space across multiple interrupt
controllers.

In order to be able to reuse the core code and prevent
architectures from reinventing an already square wheel, offer
the arch code the ability to register a dispatcher function
that will return the domain fwnode for a given GSI.

The ARM GIC drivers are updated to support this (with a single
domain, as intended).

Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/1658314292-35346-3-git-send-email-lvjianmin@loongson.cn
 2022-07-20 12:05:17 +01:00
Stefan Binding
93064e15c8
ACPI: utils: Add api to read _SUB from ACPI 
Add a wrapper function to read the _SUB string from ACPI.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20220707151037.3901050-2-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2022-07-15 12:35:09 +01:00
Mario Limonciello
7feec7430e ACPI: CPPC: Only probe for _CPC if CPPC v2 is acked 
Previously the kernel used to ignore whether the firmware masked CPPC
or CPPCv2 and would just pretend that it worked.

When support for the USB4 bit in _OSC was introduced from commit
9e1f561afb ("ACPI: Execute platform _OSC also with query bit clear")
the kernel began to look at the return when the query bit was clear.

This caused regressions that were misdiagnosed and attempted to be solved
as part of commit 2ca8e62852 ("Revert "ACPI: Pass the same capabilities
to the _OSC regardless of the query flag""). This caused a different
regression where non-Intel systems weren't able to negotiate _OSC
properly.

This was reverted in commit 2ca8e62852 ("Revert "ACPI: Pass the same
capabilities to the _OSC regardless of the query flag"") and attempted to
be fixed by commit c42fa24b44 ("ACPI: bus: Avoid using CPPC if not
supported by firmware") but the regression still returned.

These systems with the regression only load support for CPPC from an SSDT
dynamically when _OSC reports CPPC v2.  Avoid the problem by not letting
CPPC satisfy the requirement in `acpi_cppc_processor_probe`.

Reported-by: CUI Hao <cuihao.leo@gmail.com>
Reported-by: maxim.novozhilov@gmail.com
Reported-by: lethe.tree@protonmail.com
Reported-by: garystephenwright@gmail.com
Reported-by: galaxyking0419@gmail.com
Fixes: c42fa24b44 ("ACPI: bus: Avoid using CPPC if not supported by firmware")
Fixes: 2ca8e62852 ("Revert "ACPI Pass the same capabilities to the _OSC regardless of the query flag"")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=213023
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2075387
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: CUI Hao <cuihao.leo@gmail.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-07-05 20:36:11 +02:00
Sudeep Holla
7128af87c7 ACPI: Remove the unused find_acpi_cpu_cache_topology() 
The sole user of this find_acpi_cpu_cache_topology() was arm64 topology
which is now consolidated into the generic arch_topology without the need
of this function.

Drop the unused function find_acpi_cpu_cache_topology().

Link: https://lore.kernel.org/r/20220704101605.1318280-22-sudeep.holla@arm.com
Cc: Rafael J. Wysocki <rafael@kernel.org>
Reported-by: Ionela Voinescu <ionela.voinescu@arm.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
 2022-07-04 16:23:23 +01:00
Linus Torvalds
527953ef71 More ACPI updates for 5.19-rc1 
- Add Meteor Lake ACPI IDs for DPTF devices (Sumeet Pawnikar).
 
  - Rearrange find_child_checks() to simplify code (Rafael Wysocki).
 
  - Use memremap() to map the UCSI mailbox that is always in main memory
    and drop acpi_release_memory() that has no more users (Heikki
    Krogerus, Dan Carpenter).
 
  - Make max_cstate/nocst/bm_check_disable processor module parameters
    visible in sysfs (Yajun Deng).
 
  - Fix typo in the CPPC driver (Julia Lawall).
 
  - Make the ACPI battery driver show the "not-charging" status by
    default unless "charging" or "full" is directly indicated (Werner
    Sembach).
 
  - Improve the PM notifier in the ACPI backlight driver (Zhang Rui).
 
  - Clean up some white space in the ACPI code (Ian Cowan).
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Merge tag 'acpi-5.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These add some new device IDs, update a few drivers (processor,
  battery, backlight) and clean up code in a few places.

  Specifics:

   - Add Meteor Lake ACPI IDs for DPTF devices (Sumeet Pawnikar)

   - Rearrange find_child_checks() to simplify code (Rafael Wysocki)

   - Use memremap() to map the UCSI mailbox that is always in main
     memory and drop acpi_release_memory() that has no more users
     (Heikki Krogerus, Dan Carpenter)

   - Make max_cstate/nocst/bm_check_disable processor module parameters
     visible in sysfs (Yajun Deng)

   - Fix typo in the CPPC driver (Julia Lawall)

   - Make the ACPI battery driver show the "not-charging" status by
     default unless "charging" or "full" is directly indicated (Werner
     Sembach)

   - Improve the PM notifier in the ACPI backlight driver (Zhang Rui)

   - Clean up some white space in the ACPI code (Ian Cowan)"

* tag 'acpi-5.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  usb: typec: ucsi: acpi: fix a NULL vs IS_ERR() check in probe
  ACPI: DPTF: Support Meteor Lake
  ACPI: CPPC: fix typo in comment
  ACPI: video: improve PM notifer callback
  ACPI: clean up white space in a few places for consistency
  ACPI: glue: Rearrange find_child_checks()
  ACPI: processor: idle: Expose max_cstate/nocst/bm_check_disable read-only in sysfs
  ACPI: battery: Make "not-charging" the default on no charging or full info
  ACPI: OSL: Remove the helper for deactivating memory region
  usb: typec: ucsi: acpi: Map the mailbox with memremap()
 2022-05-30 11:30:16 -07:00
Rafael J. Wysocki
15f4bb9aac Merge branches 'acpi-glue', 'acpi-osl', 'acpi-processor' and 'acpi-cppc' 
Merge general ACPI cleanups and processor support updates for 5.19-rc1:

 - Rearrange find_child_checks() to simplify code (Rafael Wysocki).

 - Use memremap() to map the UCSI mailbox that is always in main memory
   and drop acpi_release_memory() that has no more users (Heikki
   Krogerus, Dan Carpenter).

 - Make max_cstate/nocst/bm_check_disable processor module parameters
   visible in sysfs (Yajun Deng).

 - Fix typo in the CPPC driver (Julia Lawall).

* acpi-glue:
  ACPI: glue: Rearrange find_child_checks()

* acpi-osl:
  usb: typec: ucsi: acpi: fix a NULL vs IS_ERR() check in probe
  ACPI: OSL: Remove the helper for deactivating memory region
  usb: typec: ucsi: acpi: Map the mailbox with memremap()

* acpi-processor:
  ACPI: processor: idle: Expose max_cstate/nocst/bm_check_disable read-only in sysfs

* acpi-cppc:
  ACPI: CPPC: fix typo in comment
 2022-05-30 18:04:57 +02:00
Linus Torvalds
9d004b2f4f cxl for 5.19 
- Add driver-core infrastructure for lockdep validation of
   device_lock(), and fixup a deadlock report that was previously hidden
   behind the 'lockdep no validate' policy.
 
 - Add CXL _OSC support for claiming native control of CXL hotplug and
   error handling.
 
 - Disable suspend in the presence of CXL memory unless and until a
   protocol is identified for restoring PCI device context from memory
   hosted on CXL PCI devices.
 
 - Add support for snooping CXL mailbox commands to protect against
   inopportune changes, like set-partition with the 'immediate' flag set.
 
 - Rework how the driver detects legacy CXL 1.1 configurations (CXL DVSEC
   / 'mem_enable') before enabling new CXL 2.0 decode configurations (CXL
   HDM Capability).
 
 - Miscellaneous cleanups and fixes from -next exposure.
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Merge tag 'cxl-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull cxl updates from Dan Williams:
 "Compute Express Link (CXL) updates for this cycle.

  The highlight is new driver-core infrastructure and CXL subsystem
  changes for allowing lockdep to validate device_lock() usage. Thanks
  to PeterZ for setting me straight on the current capabilities of the
  lockdep API, and Greg acked it as well.

  On the CXL ACPI side this update adds support for CXL _OSC so that
  platform firmware knows that it is safe to still grant Linux native
  control of PCIe hotplug and error handling in the presence of CXL
  devices. A circular dependency problem was discovered between suspend
  and CXL memory for cases where the suspend image might be stored in
  CXL memory where that image also contains the PCI register state to
  restore to re-enable the device. Disable suspend for now until an
  architecture is defined to clarify that conflict.

  Lastly a collection of reworks, fixes, and cleanups to the CXL
  subsystem where support for snooping mailbox commands and properly
  handling the "mem_enable" flow are the highlights.

  Summary:

   - Add driver-core infrastructure for lockdep validation of
     device_lock(), and fixup a deadlock report that was previously
     hidden behind the 'lockdep no validate' policy.

   - Add CXL _OSC support for claiming native control of CXL hotplug and
     error handling.

   - Disable suspend in the presence of CXL memory unless and until a
     protocol is identified for restoring PCI device context from memory
     hosted on CXL PCI devices.

   - Add support for snooping CXL mailbox commands to protect against
     inopportune changes, like set-partition with the 'immediate' flag
     set.

   - Rework how the driver detects legacy CXL 1.1 configurations (CXL
     DVSEC / 'mem_enable') before enabling new CXL 2.0 decode
     configurations (CXL HDM Capability).

   - Miscellaneous cleanups and fixes from -next exposure"

* tag 'cxl-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (47 commits)
  cxl/port: Enable HDM Capability after validating DVSEC Ranges
  cxl/port: Reuse 'struct cxl_hdm' context for hdm init
  cxl/port: Move endpoint HDM Decoder Capability init to port driver
  cxl/pci: Drop @info argument to cxl_hdm_decode_init()
  cxl/mem: Merge cxl_dvsec_ranges() and cxl_hdm_decode_init()
  cxl/mem: Skip range enumeration if mem_enable clear
  cxl/mem: Consolidate CXL DVSEC Range enumeration in the core
  cxl/pci: Move cxl_await_media_ready() to the core
  cxl/mem: Validate port connectivity before dvsec ranges
  cxl/mem: Fix cxl_mem_probe() error exit
  cxl/pci: Drop wait_for_valid() from cxl_await_media_ready()
  cxl/pci: Consolidate wait_for_media() and wait_for_media_ready()
  cxl/mem: Drop mem_enabled check from wait_for_media()
  nvdimm: Fix firmware activation deadlock scenarios
  device-core: Kill the lockdep_mutex
  nvdimm: Drop nd_device_lock()
  ACPI: NFIT: Drop nfit_device_lock()
  nvdimm: Replace lockdep_mutex with local lock classes
  cxl: Drop cxl_device_lock()
  cxl/acpi: Add root device lockdep validation
  ...
 2022-05-27 21:24:19 -07:00
Pierre Gondois
0651ab90e4 ACPI: CPPC: Check _OSC for flexible address space 
ACPI 6.2 Section 6.2.11.2 'Platform-Wide OSPM Capabilities':
  Starting with ACPI Specification 6.2, all _CPC registers can be in
  PCC, System Memory, System IO, or Functional Fixed Hardware address
  spaces. OSPM support for this more flexible register space scheme is
  indicated by the “Flexible Address Space for CPPC Registers” _OSC bit

Otherwise (cf ACPI 6.1, s8.4.7.1.1.X), _CPC registers must be in:
- PCC or Functional Fixed Hardware address space if defined
- SystemMemory address space (NULL register) if not defined

Add the corresponding _OSC bit and check it when parsing _CPC objects.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-05-19 19:45:34 +02:00
Vishal Verma
56368029d9 PCI/ACPI: negotiate CXL _OSC 
Add full support for negotiating _OSC as defined in the CXL 2.0 spec, as
applicable to CXL-enabled platforms. Advertise support for the CXL
features we support - 'CXL 2.0 port/device register access', 'Protocol
Error Reporting', and 'CXL Native Hot Plug'. Request control for 'CXL
Memory Error Reporting'. The requests are dependent on CONFIG_* based
prerequisites, and prior PCI enabling, similar to how the standard PCI
_OSC bits are determined.

The CXL specification does not define any additional constraints on
the hotplug flow beyond PCIe native hotplug, so a kernel that supports
native PCIe hotplug, supports CXL hotplug. For error handling protocol
and link errors just use PCIe AER. There is nascent support for
amending AER events with CXL specific status [1], but there's
otherwise no additional OS responsibility for CXL errors beyond PCIe
AER. CXL Memory Errors behave the same as typical memory errors so
CONFIG_MEMORY_FAILURE is sufficient to indicate support to platform
firmware.

[1]: https://lore.kernel.org/linux-cxl/164740402242.3912056.8303625392871313860.stgit@dwillia2-desk3.amr.corp.intel.com/

Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Robert Moore <robert.moore@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/20220413073618.291335-4-vishal.l.verma@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2022-04-28 14:01:54 -07:00
Dan Williams
241d26bc26 PCI/ACPI: Prefer CXL _OSC instead of PCIe _OSC for CXL host bridges 
OB In preparation for negotiating OS control of CXL _OSC features, do the
minimal enabling to use CXL _OSC to handle the base PCIe feature
negotiation. Recall that CXL _OSC is a super-set of PCIe _OSC and the
CXL 2.0 specification mandates: "If a CXL Host Bridge device exposes CXL
_OSC, CXL aware OSPM shall evaluate CXL _OSC and not evaluate PCIe
_OSC."

Rather than pass a boolean flag alongside @root to all the helper
functions that need to consider PCIe specifics, add is_pcie() and
is_cxl() helper functions to check the flavor of @root. This also
allows for dynamic fallback to PCIe _OSC in cases where an attempt to
use CXL _OXC fails. This can happen on CXL 1.1 platforms that publish
ACPI0016 devices to indicate CXL host bridges, but do not publish the
optional CXL _OSC method. CXL _OSC is mandatory for CXL 2.0 hosts.

Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Robert Moore <robert.moore@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/20220413073618.291335-3-vishal.l.verma@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2022-04-28 14:01:54 -07:00
Vishal Verma
cc10eee952 PCI/ACPI: add a helper for retrieving _OSC Control DWORDs 
During _OSC negotiation, when the 'Control' DWORD is needed from the
result buffer after running _OSC, a couple of places performed manual
pointer arithmetic to offset into the right spot in the raw buffer.
Add a acpi_osc_ctx_get_pci_control() helper to use the #define'd
DWORD offsets to fetch the DWORDs needed from @acpi_osc_context, and
replace the above instances of the open-coded arithmetic.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Suggested-by: Davidlohr Bueso <dave@stgolabs.net>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed by: Adam Manzanares <a.manzanares@samsung.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/20220413073618.291335-2-vishal.l.verma@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2022-04-28 14:01:54 -07:00
Heikki Krogerus
b941820ec9 ACPI: OSL: Remove the helper for deactivating memory region 
There are no more users for acpi_release_memory().

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-04-27 20:44:55 +02:00
Linus Torvalds
1464677662 platform-drivers-x86 for v5.18-1 
Highlights:
 - new drivers:
   - AMD Host System Management Port (HSMP)
   - Intel Software Defined Silicon
 - removed drivers (functionality folded into other drivers):
   - intel_cht_int33fe_microb
   - surface3_button
 - amd-pmc:
   - s2idle bug-fixes
   - Support for AMD Spill to DRAM STB feature
 - hp-wmi:
   - Fix SW_TABLET_MODE detection method (and other fixes)
   - Support omen thermal profile policy v1
 - serial-multi-instantiate:
   - Add SPI device support
   - Add support for CS35L41 amplifiers used in new laptops
 - think-lmi:
   - syfs-class-firmware-attributes Certificate authentication support
 - thinkpad_acpi:
   - Fixes + quirks
   - Add platform_profile support on AMD based ThinkPads
 - x86-android-tablets
   - Improve Asus ME176C / TF103C support
   - Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets
 - Lots of various other small fixes and hardware-id additions
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI / scan:
  -  Create platform device for CS35L41
 
 ACPI / x86:
  -  Add support for LPS0 callback handler
 
 ALSA:
  -  hda/realtek: Add support for HP Laptops
 
 Add AMD system management interface:
  - Add AMD system management interface
 
 Add Intel Software Defined Silicon driver:
  - Add Intel Software Defined Silicon driver
 
 Documentation:
  -  syfs-class-firmware-attributes: Lenovo Certificate support
  -  Add x86/amd_hsmp driver
 
 ISST:
  -  Fix possible circular locking dependency detected
 
 Input:
  -  soc_button_array - add support for Microsoft Surface 3 (MSHW0028) buttons
 
 Merge remote-tracking branch 'pdx86/platform-drivers-x86-pinctrl-pmu_clk' into review-hans-gcc12:
  - Merge remote-tracking branch 'pdx86/platform-drivers-x86-pinctrl-pmu_clk' into review-hans-gcc12
 
 Merge tag 'platform-drivers-x86-serial-multi-instantiate-1' into review-hans:
  - Merge tag 'platform-drivers-x86-serial-multi-instantiate-1' into review-hans
 
 Replace acpi_bus_get_device():
  - Replace acpi_bus_get_device()
 
 amd-pmc:
  -  Only report STB errors when STB enabled
  -  Drop CPU QoS workaround
  -  Output error codes in messages
  -  Move to later in the suspend process
  -  Validate entry into the deepest state on resume
  -  uninitialized variable in amd_pmc_s2d_init()
  -  Set QOS during suspend on CZN w/ timer wakeup
  -  Add support for AMD Spill to DRAM STB feature
  -  Correct usage of SMU version
  -  Make amd_pmc_stb_debugfs_fops static
 
 asus-tf103c-dock:
  -  Make 2 global structs static
 
 asus-wmi:
  -  Fix regression when probing for fan curve control
 
 hp-wmi:
  -  support omen thermal profile policy v1
  -  Changing bios_args.data to be dynamically allocated
  -  Fix 0x05 error code reported by several WMI calls
  -  Fix SW_TABLET_MODE detection method
  -  Fix hp_wmi_read_int() reporting error (0x05)
 
 huawei-wmi:
  -  check the return value of device_create_file()
 
 i2c-multi-instantiate:
  -  Rename it for a generic serial driver name
 
 int3472:
  -  Add terminator to gpiod_lookup_table
 
 intel-uncore-freq:
  -  fix uncore_freq_common_init() error codes
 
 intel_cht_int33fe:
  -  Move to intel directory
  -  Drop Lenovo Yogabook YB1-X9x code
  -  Switch to DMI modalias based loading
 
 intel_crystal_cove_charger:
  -  Fix IRQ masking / unmasking
 
 lg-laptop:
  -  Move setting of battery charge limit to common location
 
 pinctrl:
  -  baytrail: Add pinconf group + function for the pmu_clk
 
 platform/dcdbas:
  -  move EXPORT_SYMBOL after function
 
 platform/surface:
  -  Remove Surface 3 Button driver
  -  surface3-wmi: Simplify resource management
  -  Replace acpi_bus_get_device()
  -  Reinstate platform dependency
 
 platform/x86/intel-uncore-freq:
  -  Split common and enumeration part
 
 platform/x86/intel/uncore-freq:
  -  Display uncore current frequency
  -  Use sysfs API to create attributes
  -  Move to uncore-frequency folder
 
 selftests:
  -  sdsi: test sysfs setup
 
 serial-multi-instantiate:
  -  Add SPI support
  -  Reorganize I2C functions
 
 spi:
  -  Add API to count spi acpi resources
  -  Support selection of the index of the ACPI Spi Resource before alloc
  -  Create helper API to lookup ACPI info for spi device
  -  Make spi_alloc_device and spi_add_device public again
 
 surface:
  -  surface3_power: Fix battery readings on batteries without a serial number
 
 think-lmi:
  -  Certificate authentication support
 
 thinkpad_acpi:
  -  consistently check fan_get_status return.
  -  Don't use test_bit on an integer
  -  Fix compiler warning about uninitialized err variable
  -  clean up dytc profile convert
  -  Add PSC mode support
  -  Add dual fan probe
  -  Add dual-fan quirk for T15g (2nd gen)
  -  Fix incorrect use of platform profile on AMD platforms
  -  Add quirk for ThinkPads without a fan
 
 tools arch x86:
  -  Add Intel SDSi provisiong tool
 
 touchscreen_dmi:
  -  Add info for the RWC NANOTE P8 AY07J 2-in-1
 
 x86-android-tablets:
  -  Depend on EFI and SPI
  -  Lenovo Yoga Tablet 2 830/1050 sound support
  -  Workaround Lenovo Yoga Tablet 2 830/1050 poweroff hang
  -  Add Lenovo Yoga Tablet 2 830 / 1050 data
  -  Fix EBUSY error when requesting IOAPIC IRQs
  -  Minor charger / fuel-gauge improvements
  -  Add Nextbook Ares 8 data
  -  Add IRQ to Asus ME176C accelerometer info
  -  Add lid-switch gpio-keys pdev to Asus ME176C + TF103C
  -  Add x86_android_tablet_get_gpiod() helper
  -  Add Asus ME176C/TF103C charger and fuelgauge props
  -  Add battery swnode support
  -  Trivial typo fix for MODULE_AUTHOR
  -  Fix the buttons on CZC P10T tablet
  -  Constify the gpiod_lookup_tables arrays
  -  Add an init() callback to struct x86_dev_info
  -  Add support for disabling ACPI _AEI handlers
  -  Correct crystal_cove_charger module name
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Merge tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:
  "New drivers:
    - AMD Host System Management Port (HSMP)
    - Intel Software Defined Silicon

  Removed drivers (functionality folded into other drivers):
    - intel_cht_int33fe_microb
    - surface3_button

  amd-pmc:
    - s2idle bug-fixes
    - Support for AMD Spill to DRAM STB feature

  hp-wmi:
    - Fix SW_TABLET_MODE detection method (and other fixes)
    - Support omen thermal profile policy v1

  serial-multi-instantiate:
    - Add SPI device support
    - Add support for CS35L41 amplifiers used in new laptops

  think-lmi:
    - syfs-class-firmware-attributes Certificate authentication support

  thinkpad_acpi:
    - Fixes + quirks
    - Add platform_profile support on AMD based ThinkPads

  x86-android-tablets:
    - Improve Asus ME176C / TF103C support
    - Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets

  Lots of various other small fixes and hardware-id additions"

* tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (60 commits)
  platform/x86: think-lmi: Certificate authentication support
  Documentation: syfs-class-firmware-attributes: Lenovo Certificate support
  platform/x86: amd-pmc: Only report STB errors when STB enabled
  platform/x86: amd-pmc: Drop CPU QoS workaround
  platform/x86: amd-pmc: Output error codes in messages
  platform/x86: amd-pmc: Move to later in the suspend process
  ACPI / x86: Add support for LPS0 callback handler
  platform/x86: thinkpad_acpi: consistently check fan_get_status return.
  platform/x86: hp-wmi: support omen thermal profile policy v1
  platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated
  platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls
  platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method
  platform/x86: hp-wmi: Fix hp_wmi_read_int() reporting error (0x05)
  platform/x86: amd-pmc: Validate entry into the deepest state on resume
  platform/x86: thinkpad_acpi: Don't use test_bit on an integer
  platform/x86: thinkpad_acpi: Fix compiler warning about uninitialized err variable
  platform/x86: thinkpad_acpi: clean up dytc profile convert
  platform/x86: x86-android-tablets: Depend on EFI and SPI
  platform/x86: amd-pmc: uninitialized variable in amd_pmc_s2d_init()
  platform/x86: intel-uncore-freq: fix uncore_freq_common_init() error codes
  ...
 2022-03-25 12:14:39 -07:00
Linus Torvalds
02b82b02c3 Power management updates for 5.18-rc1 
- Allow device_pm_check_callbacks() to be called from interrupt
    context without issues (Dmitry Baryshkov).
 
  - Modify devm_pm_runtime_enable() to automatically handle
    pm_runtime_dont_use_autosuspend() at driver exit time (Douglas
    Anderson).
 
  - Make the schedutil cpufreq governor use to_gov_attr_set() instead
    of open coding it (Kevin Hao).
 
  - Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
    cpufreq longhaul driver (Rafael Wysocki).
 
  - Unify show() and store() naming in cpufreq and make it use
    __ATTR_XX (Lianjie Zhang).
 
  - Make the intel_pstate driver use the EPP value set by the firmware
    by default (Srinivas Pandruvada).
 
  - Re-order the init checks in the powernow-k8 cpufreq driver (Mario
    Limonciello).
 
  - Make the ACPI processor idle driver check for architectural
    support for LPI to avoid using it on x86 by mistake (Mario
    Limonciello).
 
  - Add Sapphire Rapids Xeon support to the intel_idle driver (Artem
    Bityutskiy).
 
  - Add 'preferred_cstates' module argument to the intel_idle driver
    to work around C1 and C1E handling issue on Sapphire Rapids (Artem
    Bityutskiy).
 
  - Add core C6 optimization on Sapphire Rapids to the intel_idle
    driver (Artem Bityutskiy).
 
  - Optimize the haltpoll cpuidle driver a bit (Li RongQing).
 
  - Remove leftover text from intel_idle() kerneldoc comment and fix
    up white space in intel_idle (Rafael Wysocki).
 
  - Fix load_image_and_restore() error path (Ye Bin).
 
  - Fix typos in comments in the system wakeup hadling code (Tom Rix).
 
  - Clean up non-kernel-doc comments in hibernation code (Jiapeng
    Chong).
 
  - Fix __setup handler error handling in system-wide suspend and
    hibernation core code (Randy Dunlap).
 
  - Add device name to suspend_report_result() (Youngjin Jang).
 
  - Make virtual guests honour ACPI S4 hardware signature by
    default (David Woodhouse).
 
  - Block power off of a parent PM domain unless child is in deepest
    state (Ulf Hansson).
 
  - Use dev_err_probe() to simplify error handling for generic PM
    domains (Ahmad Fatoum).
 
  - Fix sleep-in-atomic bug caused by genpd_debug_remove() (Shawn Guo).
 
  - Document Intel uncore frequency scaling (Srinivas Pandruvada).
 
  - Add DTPM hierarchy description (Daniel Lezcano).
 
  - Change the locking scheme in DTPM (Daniel Lezcano).
 
  - Fix dtpm_cpu cleanup at exit time and missing virtual DTPM pointer
    release (Daniel Lezcano).
 
  - Make dtpm_node_callback[] static (kernel test robot).
 
  - Fix spelling mistake "initialze" -> "initialize" in
    dtpm_create_hierarchy() (Colin Ian King).
 
  - Add tracer tool for the amd-pstate driver (Jinzhou Su).
 
  - Fix PC6 displaying in turbostat on some systems (Artem Bityutskiy).
 
  - Add AMD P-State support to the cpupower utility (Huang Rui).
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Merge tag 'pm-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These are mostly fixes and cleanups all over the code and a new piece
  of documentation for Intel uncore frequency scaling.

  Functionality-wise, the intel_idle driver will support Sapphire Rapids
  Xeons natively now (with some extra facilities for controlling
  C-states more precisely on those systems), virtual guests will take
  the ACPI S4 hardware signature into account by default, the
  intel_pstate driver will take the defualt EPP value from the firmware,
  cpupower utility will support the AMD P-state driver added in the
  previous cycle, and there is a new tracer utility for that driver.

  Specifics:

   - Allow device_pm_check_callbacks() to be called from interrupt
     context without issues (Dmitry Baryshkov).

   - Modify devm_pm_runtime_enable() to automatically handle
     pm_runtime_dont_use_autosuspend() at driver exit time (Douglas
     Anderson).

   - Make the schedutil cpufreq governor use to_gov_attr_set() instead
     of open coding it (Kevin Hao).

   - Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
     cpufreq longhaul driver (Rafael Wysocki).

   - Unify show() and store() naming in cpufreq and make it use
     __ATTR_XX (Lianjie Zhang).

   - Make the intel_pstate driver use the EPP value set by the firmware
     by default (Srinivas Pandruvada).

   - Re-order the init checks in the powernow-k8 cpufreq driver (Mario
     Limonciello).

   - Make the ACPI processor idle driver check for architectural support
     for LPI to avoid using it on x86 by mistake (Mario Limonciello).

   - Add Sapphire Rapids Xeon support to the intel_idle driver (Artem
     Bityutskiy).

   - Add 'preferred_cstates' module argument to the intel_idle driver to
     work around C1 and C1E handling issue on Sapphire Rapids (Artem
     Bityutskiy).

   - Add core C6 optimization on Sapphire Rapids to the intel_idle
     driver (Artem Bityutskiy).

   - Optimize the haltpoll cpuidle driver a bit (Li RongQing).

   - Remove leftover text from intel_idle() kerneldoc comment and fix up
     white space in intel_idle (Rafael Wysocki).

   - Fix load_image_and_restore() error path (Ye Bin).

   - Fix typos in comments in the system wakeup hadling code (Tom Rix).

   - Clean up non-kernel-doc comments in hibernation code (Jiapeng
     Chong).

   - Fix __setup handler error handling in system-wide suspend and
     hibernation core code (Randy Dunlap).

   - Add device name to suspend_report_result() (Youngjin Jang).

   - Make virtual guests honour ACPI S4 hardware signature by default
     (David Woodhouse).

   - Block power off of a parent PM domain unless child is in deepest
     state (Ulf Hansson).

   - Use dev_err_probe() to simplify error handling for generic PM
     domains (Ahmad Fatoum).

   - Fix sleep-in-atomic bug caused by genpd_debug_remove() (Shawn Guo).

   - Document Intel uncore frequency scaling (Srinivas Pandruvada).

   - Add DTPM hierarchy description (Daniel Lezcano).

   - Change the locking scheme in DTPM (Daniel Lezcano).

   - Fix dtpm_cpu cleanup at exit time and missing virtual DTPM pointer
     release (Daniel Lezcano).

   - Make dtpm_node_callback[] static (kernel test robot).

   - Fix spelling mistake "initialze" -> "initialize" in
     dtpm_create_hierarchy() (Colin Ian King).

   - Add tracer tool for the amd-pstate driver (Jinzhou Su).

   - Fix PC6 displaying in turbostat on some systems (Artem Bityutskiy).

   - Add AMD P-State support to the cpupower utility (Huang Rui)"

* tag 'pm-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (58 commits)
  cpufreq: powernow-k8: Re-order the init checks
  cpuidle: intel_idle: Drop redundant backslash at line end
  cpuidle: intel_idle: Update intel_idle() kerneldoc comment
  PM: hibernate: Honour ACPI hardware signature by default for virtual guests
  cpufreq: intel_pstate: Use firmware default EPP
  cpufreq: unify show() and store() naming and use __ATTR_XX
  PM: core: keep irq flags in device_pm_check_callbacks()
  cpuidle: haltpoll: Call cpuidle_poll_state_init() later
  Documentation: amd-pstate: add tracer tool introduction
  tools/power/x86/amd_pstate_tracer: Add tracer tool for AMD P-state
  tools/power/x86/intel_pstate_tracer: make tracer as a module
  cpufreq: amd-pstate: Add more tracepoint for AMD P-State module
  PM: sleep: Add device name to suspend_report_result()
  turbostat: fix PC6 displaying on some systems
  intel_idle: add core C6 optimization for SPR
  intel_idle: add 'preferred_cstates' module argument
  intel_idle: add SPR support
  PM: runtime: Have devm_pm_runtime_enable() handle pm_runtime_dont_use_autosuspend()
  ACPI: processor idle: Check for architectural support for LPI
  cpuidle: PSCI: Move the `has_lpi` check to the beginning of the function
  ...
 2022-03-21 14:26:28 -07:00
Rafael J. Wysocki
8a9bd50a9d Merge branches 'acpi-soc', 'acpi-video' and 'acpi-apei' 
Merge ACPI SoC drivers changes, ACPI backlight driver changes and APEI
changes for 5.18-rc1:

 - Make the ACPI driver for Intel SoCs (LPSS) let the SPI driver know
   the exact type of the controller (Andy Shevchenko).

 - Force native backlight mode on Clevo NL5xRU and NL5xNU (Werner
   Sembach).

 - Fix return value of __setup handlers in the APEI code (Randy
   Dunlap).

 - Add Arm Generic Diagnostic Dump and Reset device driver (Ilkka
   Koskinen).

 - Limit printable size of BERT table data (Darren Hart).

 - Fix up HEST and GHES initialization (Shuai Xue).

* acpi-soc:
  ACPI: LPSS: Provide an SSP type to the driver
  ACPI: LPSS: Constify properties member in struct lpss_device_desc
  ACPI: platform: Constify properties parameter in acpi_create_platform_device()

* acpi-video:
  ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU

* acpi-apei:
  ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device
  ACPI/APEI: Limit printable size of BERT table data
  ACPI: APEI: fix return value of __setup handlers
  ACPI: APEI: rename ghes_init() with an "acpi_" prefix
  ACPI: APEI: explicit init of HEST and GHES in apci_init()
 2022-03-18 17:48:55 +01:00
Mario Limonciello
20e1d6402a ACPI / x86: Add support for LPS0 callback handler 
Currenty the latest thing run during a suspend to idle attempt is
the LPS0 `prepare_late` callback and the earliest thing is the
`resume_early` callback.

There is a desire for the `amd-pmc` driver to suspend later in the
suspend process (ideally the very last thing), so create a callback
that it or any other driver can hook into to do this.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20220317141445.6498-1-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
 2022-03-17 19:47:24 +01:00
Rafael J. Wysocki
c42fa24b44 ACPI: bus: Avoid using CPPC if not supported by firmware 
If the platform firmware indicates that it does not support CPPC by
clearing the OSC_SB_CPC_SUPPORT and OSC_SB_CPCV2_SUPPORT bits in the
platform _OSC capabilities mask, avoid attempting to evaluate _CPC
which may fail in that case.

Because the OSC_SB_CPC_SUPPORT and OSC_SB_CPCV2_SUPPORT bits are only
added to the supported platform capabilities mask on x86, when
X86_FEATURE_HWP is supported, allow _CPC to be evaluated regardless
in the other cases.

Link: https://lore.kernel.org/linux-acpi/CAJZ5v0i=ecAksq0TV+iLVObm-=fUfdqPABzzkgm9K6KxO1ZCcg@mail.gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
 2022-03-17 14:51:53 +01:00
David Woodhouse
f6c46b1d62 PM: hibernate: Honour ACPI hardware signature by default for virtual guests 
The ACPI specification says that OSPM should refuse to restore from
hibernate if the hardware signature changes, and should boot from
scratch. However, real BIOSes often vary the hardware signature in cases
where we *do* want to resume from hibernate, so Linux doesn't follow the
spec by default.

However, in a virtual environment there's no reason for the VMM to vary
the hardware signature *unless* it wants to trigger a clean reboot as
defined by the ACPI spec. So enable the check by default if a hypervisor
is detected.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-03-16 19:29:32 +01:00
Andy Shevchenko
2cbfae0f50 ACPI: platform: Constify properties parameter in acpi_create_platform_device() 
Properties are not and should not be changed in the callee, hence constify
properties parameter in acpi_create_platform_device().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-03-01 20:36:34 +01:00
Linus Torvalds
362f533a2a cxl for 5.17 
- Rework ACPI sub-table infrastructure to optionally be used outside of
   __init scenarios and use it for CEDT.CFMWS sub-table parsing.
 - Add support for extending num_possible_nodes by the potential hotplug
   CXL memory ranges
 - Extend tools/testing/cxl with mock memory device health information
 - Fix a module-reload workqueue race
 - Fix excessive stack-frame usage
 - Rename the driver context data structure from "cxl_mem" since that
   name collides with a proposed driver name
 - Use EXPORT_SYMBOL_NS_GPL instead of -DDEFAULT_SYMBOL_NAMESPACE at
   build time
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Merge tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull CXL (Compute Express Link) updates from Dan Williams:
 "The highlight is initial support for CXL memory hotplug. The static
  NUMA node (ACPI SRAT Physical Address to Proximity Domain) information
  known to platform firmware is extended to support the potential
  performance-class / memory-target nodes dynamically created from
  available CXL memory device capacity.

  New unit test infrastructure is added for validating health
  information payloads.

  Fixes to module reload stress and stack usage from exposure in -next
  are included. A symbol rename and some other miscellaneous fixups are
  included as well.

  Summary:

   - Rework ACPI sub-table infrastructure to optionally be used outside
     of __init scenarios and use it for CEDT.CFMWS sub-table parsing.

   - Add support for extending num_possible_nodes by the potential
     hotplug CXL memory ranges

   - Extend tools/testing/cxl with mock memory device health information

   - Fix a module-reload workqueue race

   - Fix excessive stack-frame usage

   - Rename the driver context data structure from "cxl_mem" since that
     name collides with a proposed driver name

   - Use EXPORT_SYMBOL_NS_GPL instead of -DDEFAULT_SYMBOL_NAMESPACE at
     build time"

* tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/core: Remove cxld_const_init in cxl_decoder_alloc()
  cxl/pmem: Fix module reload vs workqueue state
  ACPI: NUMA: Add a node and memblk for each CFMWS not in SRAT
  cxl/test: Mock acpi_table_parse_cedt()
  cxl/acpi: Convert CFMWS parsing to ACPI sub-table helpers
  ACPI: Add a context argument for table parsing handlers
  ACPI: Teach ACPI table parsing about the CEDT header format
  ACPI: Keep sub-table parsing infrastructure available for modules
  tools/testing/cxl: add mock output for the GET_HEALTH_INFO command
  cxl/memdev: Remove unused cxlmd field
  cxl/core: Convert to EXPORT_SYMBOL_NS_GPL
  cxl/memdev: Change cxl_mem to a more descriptive name
  cxl/mbox: Remove bad comment
  cxl/pmem: Fix reference counting for delayed work
 2022-01-12 15:57:59 -08:00
Linus Torvalds
b35b6d4d71 Power management updates for 5.17-rc1 
- Add new P-state driver for AMD processors (Huang Rui).
 
  - Fix initialization of min and max frequency QoS requests in the
    cpufreq core (Rafael Wysocki).
 
  - Fix EPP handling on Alder Lake in intel_pstate (Srinivas Pandruvada).
 
  - Make intel_pstate update cpuinfo.max_freq when notified of HWP
    capabilities changes and drop a redundant function call from that
    driver (Rafael Wysocki).
 
  - Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel,
    Stephen Boyd, Vladimir Zapolskiy).
 
  - Fix double devm_remap() in the Mediatek cpufreq driver (Hector Yuan).
 
  - Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz
    Luba).
 
  - Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman).
 
  - Make cpuidle use default_groups in kobj_type (Greg Kroah-Hartman).
 
  - Fix two comments in cpuidle code (Jason Wang, Yang Li).
 
  - Allow model-specific normal EPB value to be used in the intel_epb
    sysfs attribute handling code (Srinivas Pandruvada).
 
  - Simplify locking in pm_runtime_put_suppliers() (Rafael Wysocki).
 
  - Add safety net to supplier device release in the runtime PM core
    code (Rafael Wysocki).
 
  - Capture device status before disabling runtime PM for it (Rafael
    Wysocki).
 
  - Add new macros for declaring PM operations to allow drivers to
    avoid guarding them with CONFIG_PM #ifdefs or __maybe_unused and
    update some drivers to use these macros (Paul Cercueil).
 
  - Allow ACPI hardware signature to be honoured during restore from
    hibernation (David Woodhouse).
 
  - Update outdated operating performance points (OPP) documentation
    (Tang Yizhou).
 
  - Reduce log severity for informative message regarding frequency
    transition failures in devfreq (Tzung-Bi Shih).
 
  - Add DRAM frequency controller devfreq driver for Allwinner sunXi
    SoCs (Samuel Holland).
 
  - Add missing COMMON_CLK dependency to sun8i devfreq driver (Arnd
    Bergmann).
 
  - Add support for new layout of Psys PowerLimit Register on SPR to
    the Intel RAPL power capping driver (Zhang Rui).
 
  - Fix typo in a comment in idle_inject.c (Jason Wang).
 
  - Remove unused function definition from the DTPM (Dynamit Thermal
    Power Management) power capping framework (Daniel Lezcano).
 
  - Reduce DTPM trace verbosity (Daniel Lezcano).
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Merge tag 'pm-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "The most signigicant change here is the addition of a new cpufreq
  'P-state' driver for AMD processors as a better replacement for the
  venerable acpi-cpufreq driver.

  There are also other cpufreq updates (in the core, intel_pstate, ARM
  drivers), PM core updates (mostly related to adding new macros for
  declaring PM operations which should make the lives of driver
  developers somewhat easier), and a bunch of assorted fixes and
  cleanups.

  Summary:

   - Add new P-state driver for AMD processors (Huang Rui).

   - Fix initialization of min and max frequency QoS requests in the
     cpufreq core (Rafael Wysocki).

   - Fix EPP handling on Alder Lake in intel_pstate (Srinivas
     Pandruvada).

   - Make intel_pstate update cpuinfo.max_freq when notified of HWP
     capabilities changes and drop a redundant function call from that
     driver (Rafael Wysocki).

   - Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel,
     Stephen Boyd, Vladimir Zapolskiy).

   - Fix double devm_remap() in the Mediatek cpufreq driver (Hector
     Yuan).

   - Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz
     Luba).

   - Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman).

   - Make cpuidle use default_groups in kobj_type (Greg Kroah-Hartman).

   - Fix two comments in cpuidle code (Jason Wang, Yang Li).

   - Allow model-specific normal EPB value to be used in the intel_epb
     sysfs attribute handling code (Srinivas Pandruvada).

   - Simplify locking in pm_runtime_put_suppliers() (Rafael Wysocki).

   - Add safety net to supplier device release in the runtime PM core
     code (Rafael Wysocki).

   - Capture device status before disabling runtime PM for it (Rafael
     Wysocki).

   - Add new macros for declaring PM operations to allow drivers to
     avoid guarding them with CONFIG_PM #ifdefs or __maybe_unused and
     update some drivers to use these macros (Paul Cercueil).

   - Allow ACPI hardware signature to be honoured during restore from
     hibernation (David Woodhouse).

   - Update outdated operating performance points (OPP) documentation
     (Tang Yizhou).

   - Reduce log severity for informative message regarding frequency
     transition failures in devfreq (Tzung-Bi Shih).

   - Add DRAM frequency controller devfreq driver for Allwinner sunXi
     SoCs (Samuel Holland).

   - Add missing COMMON_CLK dependency to sun8i devfreq driver (Arnd
     Bergmann).

   - Add support for new layout of Psys PowerLimit Register on SPR to
     the Intel RAPL power capping driver (Zhang Rui).

   - Fix typo in a comment in idle_inject.c (Jason Wang).

   - Remove unused function definition from the DTPM (Dynamit Thermal
     Power Management) power capping framework (Daniel Lezcano).

   - Reduce DTPM trace verbosity (Daniel Lezcano)"

* tag 'pm-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
  x86, sched: Fix undefined reference to init_freq_invariance_cppc() build error
  cpufreq: amd-pstate: Fix Kconfig dependencies for AMD P-State
  cpufreq: amd-pstate: Fix struct amd_cpudata kernel-doc comment
  cpuidle: use default_groups in kobj_type
  x86: intel_epb: Allow model specific normal EPB value
  MAINTAINERS: Add AMD P-State driver maintainer entry
  Documentation: amd-pstate: Add AMD P-State driver introduction
  cpufreq: amd-pstate: Add AMD P-State performance attributes
  cpufreq: amd-pstate: Add AMD P-State frequencies attributes
  cpufreq: amd-pstate: Add boost mode support for AMD P-State
  cpufreq: amd-pstate: Add trace for AMD P-State module
  cpufreq: amd-pstate: Introduce the support for the processors with shared memory solution
  cpufreq: amd-pstate: Add fast switch function for AMD P-State
  cpufreq: amd-pstate: Introduce a new AMD P-State driver to support future processors
  ACPI: CPPC: Add CPPC enable register function
  ACPI: CPPC: Check present CPUs for determining _CPC is valid
  ACPI: CPPC: Implement support for SystemIO registers
  x86/msr: Add AMD CPPC MSR definitions
  x86/cpufeatures: Add AMD Collaborative Processor Performance Control feature flag
  cpufreq: use default_groups in kobj_type
  ...
 2022-01-10 20:34:00 -08:00
Sudeep Holla
77e2a04745 ACPI: PCC: Implement OperationRegion handler for the PCC Type 3 subtype 
PCC OpRegion provides a mechanism to communicate with the platform
directly from the AML. PCCT provides the list of PCC channel available
in the platform, a subset or all of them can be used in PCC Opregion.

This patch registers the PCC OpRegion handler before ACPI tables are
loaded. This relies on the special context data passed to identify and
set up the PCC channel before the OpRegion handler is executed for the
first time.

Typical PCC Opregion declaration looks like this:

OperationRegion (PFRM, PCC, 2, 0x74)
Field (PFRM, ByteAcc, NoLock, Preserve)
{
    SIGN,   32,
    FLGS,   32,
    LEN,    32,
    CMD,    32,
    DATA,   800
}

It contains four named double words followed by 100 bytes of buffer
names DATA.

ASL can fill out the buffer something like:

    /* Create global or local buffer */
    Name (BUFF, Buffer (0x0C){})
    /* Create double word fields over the buffer */
    CreateDWordField (BUFF, 0x0, WD0)
    CreateDWordField (BUFF, 0x04, WD1)
    CreateDWordField (BUFF, 0x08, WD2)

    /* Fill the named fields */
    WD0 = 0x50434300
    SIGN = BUFF
    WD0 = 1
    FLGS = BUFF
    WD0 = 0x10
    LEN = BUFF

    /* Fill the payload in the DATA buffer */
    WD0 = 0
    WD1 = 0x08
    WD2 = 0
    DATA = BUFF

    /* Write to CMD field to trigger handler */
    WD0 = 0x4404
    CMD = BUFF

This buffer is received by acpi_pcc_opregion_space_handler. This
handler will fetch the complete buffer via internal_pcc_buffer.

The setup handler will receive the special PCC context data which will
contain the PCC channel index which used to set up the channel. The
buffer pointer and length is saved in region context which is then used
in the handler.

(kernel test robot: Build failure with CONFIG_ACPI_DEBUGGER)
Link: https://lore.kernel.org/r/202201041539.feAV0l27-lkp@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2022-01-04 21:00:47 +01:00
David Woodhouse
74d9555580 PM: hibernate: Allow ACPI hardware signature to be honoured 
Theoretically, when the hardware signature in FACS changes, the OS
is supposed to gracefully decline to attempt to resume from S4:

 "If the signature has changed, OSPM will not restore the system
  context and can boot from scratch"

In practice, Windows doesn't do this and many laptop vendors do allow
the signature to change especially when docking/undocking, so it would
be a bad idea to simply comply with the specification by default in the
general case.

However, there are use cases where we do want the compliant behaviour
and we know it's safe. Specifically, when resuming virtual machines where
we know the hypervisor has changed sufficiently that resume will fail.
We really want to be able to *tell* the guest kernel not to try, so it
boots cleanly and doesn't just crash. This patch provides a way to opt
in to the spec-compliant behaviour on the command line.

A follow-up patch may do this automatically for certain "known good"
machines based on a DMI match, or perhaps just for all hypervisor
guests since there's no good reason a hypervisor would change the
hardware_signature that it exposes to guests *unless* it wants them
to obey the ACPI specification.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2021-12-08 16:06:10 +01:00
Sakari Ailus
985e9ece1e ACPI: Make acpi_node_get_parent() local 
acpi_node_get_parent() isn't used outside drivers/acpi/property.c.

Make it local.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2021-11-23 19:13:00 +01:00
Mario Limonciello
e9380df851 ACPI: Add stubs for wakeup handler functions 
The commit ddfd9dcf27 ("ACPI: PM: Add acpi_[un]register_wakeup_handler()")
added new functions for drivers to use during the s2idle wakeup path, but
didn't add stubs for when CONFIG_ACPI wasn't set.

Add those stubs in for other drivers to be able to use.

Fixes: ddfd9dcf27 ("ACPI: PM: Add acpi_[un]register_wakeup_handler()")
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20211101014853.6177-1-mario.limonciello@amd.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2021-11-16 02:19:14 +01:00
Dan Williams
2d03e46a4b ACPI: Add a context argument for table parsing handlers 
In preparation for drivers reusing the core table parsing
infrastructure, arrange for handlers to take a context argument. This
allows driver table parsing to wrap ACPI table entries in
driver-specific data.

The first consumer of this infrastructure is the CEDT parsing that
happens in the cxl_acpi driver, add a conditional
(CONFIG_ACPI_TABLE_LIB=y) export of a acpi_table_parse_cedt() helper for
this case.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Len Brown <lenb@kernel.org>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/163553710257.2509508.14310494417463866020.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2021-11-15 11:02:59 -08:00
Dan Williams
ad2f63971e ACPI: Teach ACPI table parsing about the CEDT header format 
The CEDT adds yet one more unique subtable header type where the length
is a 16-bit value. Extend the subtable helpers to detect this scenario.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Len Brown <lenb@kernel.org>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/163553709742.2509508.5177761945441327574.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2021-11-15 11:02:59 -08:00
Dan Williams
f64bd790b7 ACPI: Keep sub-table parsing infrastructure available for modules 
The NFIT driver and now the CXL ACPI driver have both open-coded ACPI
table parsing. Before another instance is added arrange for the core
ACPI sub-table parsing to be optionally available to drivers via the
CONFIG_ACPI_TABLE_LIB symbol. If no drivers select the symbol then the
infrastructure reverts back to being tagged __init via the
__init_or_acpilib annotation.

For now, only tag the core sub-table routines and data that the CEDT parsing in
the cxl_acpi driver would want to reuse, a CEDT parsing helper is added
in a later change.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Alison Schofield <alison.schofield@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/163553709227.2509508.8215196520233473814.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2021-11-15 11:02:59 -08:00
Linus Torvalds
285fc3db0a More ACPI updates for 5.16-rc1 
- Add support for new ACPI device configuration object called _DSC
    to allow certain devices to be probed without changing their power
    states, document it and make two drivers use it (Sakari Ailus,
    Rajmohan Mani).
 
  - Fix device wakeup power reference counting broken recently by
    mistake (Rafael Wysocki).
 
  - Drop unused symbol and macros depending on it from acgcc.h (Rafael
    Wysocki).
 
  - Add HP ZHAN 66 Pro to the "no EC wakeup" quirk list (Binbin Zhou).
 
  - Add Xiaomi Mi Pad 2 to the backlight quirk list and drop an unused
    piece of data from all of the list entries (Hans de Goede).
 
  - Fix register read accesses handling in the Intel PMIC operation
    region driver (Hans de Goede).
 
  - Clean up static variables initialization in the EC driver
    (wangzhitong).
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Merge tag 'acpi-5.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These add support for a new ACPI device configuration object called
  _DSC, fix some issues including one recent regression, add two new
  items to quirk lists and clean up assorted pieces of code.

  Specifics:

   - Add support for new ACPI device configuration object called _DSC
     ("Deepest State for Configuration") to allow certain devices to be
     probed without changing their power states, document it and make
     two drivers use it (Sakari Ailus, Rajmohan Mani).

   - Fix device wakeup power reference counting broken recently by
     mistake (Rafael Wysocki).

   - Drop unused symbol and macros depending on it from acgcc.h (Rafael
     Wysocki).

   - Add HP ZHAN 66 Pro to the "no EC wakeup" quirk list (Binbin Zhou).

   - Add Xiaomi Mi Pad 2 to the backlight quirk list and drop an unused
     piece of data from all of the list entries (Hans de Goede).

   - Fix register read accesses handling in the Intel PMIC operation
     region driver (Hans de Goede).

   - Clean up static variables initialization in the EC driver
     (wangzhitong)"

* tag 'acpi-5.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Documentation: ACPI: Fix non-D0 probe _DSC object example
  ACPI: Drop ACPI_USE_BUILTIN_STDARG ifdef from acgcc.h
  ACPI: PM: Fix device wakeup power reference counting error
  ACPI: video: use platform backlight driver on Xiaomi Mi Pad 2
  ACPI: video: Drop dmi_system_id.ident settings from video_detect_dmi_table[]
  ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses
  ACPI: EC: Remove initialization of static variables to false
  ACPI: EC: Use ec_no_wakeup on HP ZHAN 66 Pro
  at24: Support probing while in non-zero ACPI D state
  media: i2c: imx319: Support device probe in non-zero ACPI D state
  ACPI: Add a convenience function to tell a device is in D0 state
  Documentation: ACPI: Document _DSC object usage for enum power state
  i2c: Allow an ACPI driver to manage the device's power state during probe
  ACPI: scan: Obtain device's desired enumeration power state
 2021-11-10 11:52:40 -08:00
Linus Torvalds
0c5c62ddf8 pci-v5.16-changes 
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Merge tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:
   - Conserve IRQs by setting up portdrv IRQs only when there are users
     (Jan Kiszka)
   - Rework and simplify _OSC negotiation for control of PCIe features
     (Joerg Roedel)
   - Remove struct pci_dev.driver pointer since it's redundant with the
     struct device.driver pointer (Uwe Kleine-König)

  Resource management:
   - Coalesce contiguous host bridge apertures from _CRS to accommodate
     BARs that cover more than one aperture (Kai-Heng Feng)

  Sysfs:
   - Check CAP_SYS_ADMIN before parsing user input (Krzysztof
     Wilczyński)
   - Return -EINVAL consistently from "store" functions (Krzysztof
     Wilczyński)
   - Use sysfs_emit() in endpoint "show" functions to avoid buffer
     overruns (Kunihiko Hayashi)

  PCIe native device hotplug:
   - Ignore Link Down/Up caused by resets during error recovery so
     endpoint drivers can remain bound to the device (Lukas Wunner)

  Virtualization:
   - Avoid bus resets on Atheros QCA6174, where they hang the device
     (Ingmar Klein)
   - Work around Pericom PI7C9X2G switch packet drop erratum by using
     store and forward mode instead of cut-through (Nathan Rossi)
   - Avoid trying to enable AtomicOps on VFs; the PF setting applies to
     all VFs (Selvin Xavier)

  MSI:
   - Document that /sys/bus/pci/devices/.../irq contains the legacy INTx
     interrupt or the IRQ of the first MSI (not MSI-X) vector (Barry
     Song)

  VPD:
   - Add pci_read_vpd_any() and pci_write_vpd_any() to access anywhere
     in the possible VPD space; use these to simplify the cxgb3 driver
     (Heiner Kallweit)

  Peer-to-peer DMA:
   - Add (not subtract) the bus offset when calculating DMA address
     (Wang Lu)

  ASPM:
   - Re-enable LTR at Downstream Ports so they don't report Unsupported
     Requests when reset or hot-added devices send LTR messages
     (Mingchuang Qiao)

  Apple PCIe controller driver:
   - Add driver for Apple M1 PCIe controller (Alyssa Rosenzweig, Marc
     Zyngier)

  Cadence PCIe controller driver:
   - Return success when probe succeeds instead of falling into error
     path (Li Chen)

  HiSilicon Kirin PCIe controller driver:
   - Reorganize PHY logic and add support for external PHY drivers
     (Mauro Carvalho Chehab)
   - Support PERST# GPIOs for HiKey970 external PEX 8606 bridge (Mauro
     Carvalho Chehab)
   - Add Kirin 970 support (Mauro Carvalho Chehab)
   - Make driver removable (Mauro Carvalho Chehab)

  Intel VMD host bridge driver:
   - If IOMMU supports interrupt remapping, leave VMD MSI-X remapping
     enabled (Adrian Huang)
   - Number each controller so we can tell them apart in
     /proc/interrupts (Chunguang Xu)
   - Avoid building on UML because VMD depends on x86 bare metal APIs
     (Johannes Berg)

  Marvell Aardvark PCIe controller driver:
   - Define macros for PCI_EXP_DEVCTL_PAYLOAD_* (Pali Rohár)
   - Set Max Payload Size to 512 bytes per Marvell spec (Pali Rohár)
   - Downgrade PIO Response Status messages to debug level (Marek Behún)
   - Preserve CRS SV (Config Request Retry Software Visibility) bit in
     emulated Root Control register (Pali Rohár)
   - Fix issue in configuring reference clock (Pali Rohár)
   - Don't clear status bits for masked interrupts (Pali Rohár)
   - Don't mask unused interrupts (Pali Rohár)
   - Avoid code repetition in advk_pcie_rd_conf() (Marek Behún)
   - Retry config accesses on CRS response (Pali Rohár)
   - Simplify emulated Root Capabilities initialization (Pali Rohár)
   - Fix several link training issues (Pali Rohár)
   - Fix link-up checking via LTSSM (Pali Rohár)
   - Fix reporting of Data Link Layer Link Active (Pali Rohár)
   - Fix emulation of W1C bits (Marek Behún)
   - Fix MSI domain .alloc() method to return zero on success (Marek
     Behún)
   - Read entire 16-bit MSI vector in MSI handler, not just low 8 bits
     (Marek Behún)
   - Clear Root Port I/O Space, Memory Space, and Bus Master Enable bits
     at startup; PCI core will set those as necessary (Pali Rohár)
   - When operating as a Root Port, set class code to "PCI Bridge"
     instead of the default "Mass Storage Controller" (Pali Rohár)
   - Add emulation for PCI_BRIDGE_CTL_BUS_RESET since aardvark doesn't
     implement this per spec (Pali Rohár)
   - Add emulation of option ROM BAR since aardvark doesn't implement
     this per spec (Pali Rohár)

  MediaTek MT7621 PCIe controller driver:
   - Add MediaTek MT7621 PCIe host controller driver and DT binding
     (Sergio Paracuellos)

  Qualcomm PCIe controller driver:
   - Add SC8180x compatible string (Bjorn Andersson)
   - Add endpoint controller driver and DT binding (Manivannan
     Sadhasivam)
   - Restructure to use of_device_get_match_data() (Prasad Malisetty)
   - Add SC7280-specific pcie_1_pipe_clk_src handling (Prasad Malisetty)

  Renesas R-Car PCIe controller driver:
   - Remove unnecessary includes (Geert Uytterhoeven)

  Rockchip DesignWare PCIe controller driver:
   - Add DT binding (Simon Xue)

  Socionext UniPhier Pro5 controller driver:
   - Serialize INTx masking/unmasking (Kunihiko Hayashi)

  Synopsys DesignWare PCIe controller driver:
   - Run dwc .host_init() method before registering MSI interrupt
     handler so we can deal with pending interrupts left by bootloader
     (Bjorn Andersson)
   - Clean up Kconfig dependencies (Andy Shevchenko)
   - Export symbols to allow more modular drivers (Luca Ceresoli)

  TI DRA7xx PCIe controller driver:
   - Allow host and endpoint drivers to be modules (Luca Ceresoli)
   - Enable external clock if present (Luca Ceresoli)

  TI J721E PCIe driver:
   - Disable PHY when probe fails after initializing it (Christophe
     JAILLET)

  MicroSemi Switchtec management driver:
   - Return error to application when command execution fails because an
     out-of-band reset has cleared the device BARs, Memory Space Enable,
     etc (Kelvin Cao)
   - Fix MRPC error status handling issue (Kelvin Cao)
   - Mask out other bits when reading of management VEP instance ID
     (Kelvin Cao)
   - Return EOPNOTSUPP instead of ENOTSUPP from sysfs show functions
     (Kelvin Cao)
   - Add check of event support (Logan Gunthorpe)

  Miscellaneous:
   - Remove unused pci_pool wrappers, which have been replaced by
     dma_pool (Cai Huoqing)
   - Use 'unsigned int' instead of bare 'unsigned' (Krzysztof
     Wilczyński)
   - Use kstrtobool() directly, sans strtobool() wrapper (Krzysztof
     Wilczyński)
   - Fix some sscanf(), sprintf() format mismatches (Krzysztof
     Wilczyński)
   - Update PCI subsystem information in MAINTAINERS (Krzysztof
     Wilczyński)
   - Correct some misspellings (Krzysztof Wilczyński)"

* tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (137 commits)
  PCI: Add ACS quirk for Pericom PI7C9X2G switches
  PCI: apple: Configure RID to SID mapper on device addition
  iommu/dart: Exclude MSI doorbell from PCIe device IOVA range
  PCI: apple: Implement MSI support
  PCI: apple: Add INTx and per-port interrupt support
  PCI: kirin: Allow removing the driver
  PCI: kirin: De-init the dwc driver
  PCI: kirin: Disable clkreq during poweroff sequence
  PCI: kirin: Move the power-off code to a common routine
  PCI: kirin: Add power_off support for Kirin 960 PHY
  PCI: kirin: Allow building it as a module
  PCI: kirin: Add MODULE_* macros
  PCI: kirin: Add Kirin 970 compatible
  PCI: kirin: Support PERST# GPIOs for HiKey970 external PEX 8606 bridge
  PCI: apple: Set up reference clocks when probing
  PCI: apple: Add initial hardware bring-up
  PCI: of: Allow matching of an interrupt-map local to a PCI device
  of/irq: Allow matching of an interrupt-map local to an interrupt controller
  irqdomain: Make of_phandle_args_to_fwspec() generally available
  PCI: Do not enable AtomicOps on VFs
  ...
 2021-11-06 14:36:12 -07:00
Sakari Ailus
b82a7df4a7 ACPI: Add a convenience function to tell a device is in D0 state 
Add a convenience function to tell whether a device is in D0 state,
primarily for use in drivers' probe or remove functions on busses where
the custom is to power on the device for the duration of both.

Returns false on non-ACPI systems.

Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2021-11-03 19:03:55 +01:00
Jonathan Cameron
c5e22feffd topology: Represent clusters of CPUs within a die 
Both ACPI and DT provide the ability to describe additional layers of
topology between that of individual cores and higher level constructs
such as the level at which the last level cache is shared.
In ACPI this can be represented in PPTT as a Processor Hierarchy
Node Structure [1] that is the parent of the CPU cores and in turn
has a parent Processor Hierarchy Nodes Structure representing
a higher level of topology.

For example Kunpeng 920 has 6 or 8 clusters in each NUMA node, and each
cluster has 4 cpus. All clusters share L3 cache data, but each cluster
has local L3 tag. On the other hand, each clusters will share some
internal system bus.

+-----------------------------------+                          +---------+
|  +------+    +------+             +--------------------------+         |
|  | CPU0 |    | cpu1 |             |    +-----------+         |         |
|  +------+    +------+             |    |           |         |         |
|                                   +----+    L3     |         |         |
|  +------+    +------+   cluster   |    |    tag    |         |         |
|  | CPU2 |    | CPU3 |             |    |           |         |         |
|  +------+    +------+             |    +-----------+         |         |
|                                   |                          |         |
+-----------------------------------+                          |         |
+-----------------------------------+                          |         |
|  +------+    +------+             +--------------------------+         |
|  |      |    |      |             |    +-----------+         |         |
|  +------+    +------+             |    |           |         |         |
|                                   |    |    L3     |         |         |
|  +------+    +------+             +----+    tag    |         |         |
|  |      |    |      |             |    |           |         |         |
|  +------+    +------+             |    +-----------+         |         |
|                                   |                          |         |
+-----------------------------------+                          |   L3    |
                                                               |   data  |
+-----------------------------------+                          |         |
|  +------+    +------+             |    +-----------+         |         |
|  |      |    |      |             |    |           |         |         |
|  +------+    +------+             +----+    L3     |         |         |
|                                   |    |    tag    |         |         |
|  +------+    +------+             |    |           |         |         |
|  |      |    |      |             |    +-----------+         |         |
|  +------+    +------+             +--------------------------+         |
+-----------------------------------|                          |         |
+-----------------------------------|                          |         |
|  +------+    +------+             +--------------------------+         |
|  |      |    |      |             |    +-----------+         |         |
|  +------+    +------+             |    |           |         |         |
|                                   +----+    L3     |         |         |
|  +------+    +------+             |    |    tag    |         |         |
|  |      |    |      |             |    |           |         |         |
|  +------+    +------+             |    +-----------+         |         |
|                                   |                          |         |
+-----------------------------------+                          |         |
+-----------------------------------+                          |         |
|  +------+    +------+             +--------------------------+         |
|  |      |    |      |             |   +-----------+          |         |
|  +------+    +------+             |   |           |          |         |
|                                   |   |    L3     |          |         |
|  +------+    +------+             +---+    tag    |          |         |
|  |      |    |      |             |   |           |          |         |
|  +------+    +------+             |   +-----------+          |         |
|                                   |                          |         |
+-----------------------------------+                          |         |
+-----------------------------------+                          |         |
|  +------+    +------+             +--------------------------+         |
|  |      |    |      |             |  +-----------+           |         |
|  +------+    +------+             |  |           |           |         |
|                                   |  |    L3     |           |         |
|  +------+    +------+             +--+    tag    |           |         |
|  |      |    |      |             |  |           |           |         |
|  +------+    +------+             |  +-----------+           |         |
|                                   |                          +---------+
+-----------------------------------+

That means spreading tasks among clusters will bring more bandwidth
while packing tasks within one cluster will lead to smaller cache
synchronization latency. So both kernel and userspace will have
a chance to leverage this topology to deploy tasks accordingly to
achieve either smaller cache latency within one cluster or an even
distribution of load among clusters for higher throughput.

This patch exposes cluster topology to both kernel and userspace.
Libraried like hwloc will know cluster by cluster_cpus and related
sysfs attributes. PoC of HWLOC support at [2].

Note this patch only handle the ACPI case.

Special consideration is needed for SMT processors, where it is
necessary to move 2 levels up the hierarchy from the leaf nodes
(thus skipping the processor core level).

Note that arm64 / ACPI does not provide any means of identifying
a die level in the topology but that may be unrelate to the cluster
level.

[1] ACPI Specification 6.3 - section 5.2.29.1 processor hierarchy node
    structure (Type 0)
[2] https://github.com/hisilicon/hwloc/tree/linux-cluster

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210924085104.44806-2-21cnbao@gmail.com
 2021-10-15 11:25:15 +02:00
Joerg Roedel
af9d82626c PCI/ACPI: Remove OSC_PCI_SUPPORT_MASKS and OSC_PCI_CONTROL_MASKS 
These masks are only used internally in the PCI Host Bridge _OSC
negotiation code, which already makes sure nothing outside of these masks
is set. Remove the masks and simplify the code.

Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20210824122054.29481-2-joro@8bytes.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>
 2021-09-28 16:17:31 -05:00
Rafael J. Wysocki
7c85154643 Merge branches 'acpi-numa', 'acpi-glue', 'acpi-config' and 'acpi-pmic' 
* acpi-numa:
  ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA

* acpi-glue:
  driver core: Split device_platform_notify()
  software nodes: Split software_node_notify()
  ACPI: glue: Eliminate acpi_platform_notify()
  ACPI: bus: Rename functions to avoid name collision
  ACPI: glue: Change return type of two functions to void
  ACPI: glue: Rearrange acpi_device_notify()

* acpi-config:
  ACPI: configfs: Make get_header() to return error pointer
  ACPI: configfs: Use sysfs_emit() in "show" functions

* acpi-pmic:
  ACPI / PMIC: XPower: optimize MIPI PMIQ sequence I2C-bus accesses
  ACPI / PMIC: XPower: optimize I2C-bus accesses
 2021-08-30 19:30:37 +02:00
Rafael J. Wysocki
d0b8e39831 ACPI: glue: Eliminate acpi_platform_notify() 
Get rid of acpi_platform_notify() which is redundant and
make device_platform_notify() in the driver core call
acpi_device_notify() and acpi_device_notify_remove() directly.

No functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
 2021-07-16 19:17:04 +02:00
Huacai Chen
b1121e2a18 ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA 
We are preparing to add new Loongson (based on LoongArch, not MIPS)
support. LoongArch use ACPI other than DT as its boot protocol, so
add its support for ACPI_PROCESSOR/ACPI_NUMA.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2021-07-16 19:09:20 +02:00
Linus Torvalds
e9f1cbc0c4 More ACPI updates for 5.14-rc1 
- Fix up the recently added Platform Runtime Mechanism (PRM)
    support by correnting a couple of implementation mistakes in it
    and adding a Kconfig help text to describe it (Aubrey Li,
    Rafael Wysocki).
 
  - Add backlight quirk for Dell Vostro 3350 (Hans de Goede).
 
  - Avoid spurious wakeups from suspend-to-idle on non-Intel platforms
    by restricting special EC GPE handling to the Intel ones (Mario
    Limonciello).
 
  - Modify the AMBA bus support in ACPI to avoid adding using
    resource names in /proc/iomem (Liguang Zhang).
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Merge tag 'acpi-5.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These include fixes of the recently introduced support for the
  Platform Runtime Mechanism (PRM) feature, a new backlight quirk, a
  suspend-to-idle wakeup fix for non-Intel platforms and a fix for the
  AMBA bus resource list in /proc/iomem.

  Specifics:

   - Fix up the recently added Platform Runtime Mechanism (PRM) support
     by correnting a couple of implementation mistakes in it and adding
     a Kconfig help text to describe it (Aubrey Li, Rafael Wysocki).

   - Add backlight quirk for Dell Vostro 3350 (Hans de Goede).

   - Avoid spurious wakeups from suspend-to-idle on non-Intel platforms
     by restricting special EC GPE handling to the Intel ones (Mario
     Limonciello).

   - Modify the AMBA bus support in ACPI to avoid adding using resource
     names in /proc/iomem (Liguang Zhang)"

* tag 'acpi-5.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: Do not singal PRM support if not enabled
  ACPI: Correct \_SB._OSC bit definition for PRM
  ACPI: Kconfig: Provide help text for the ACPI_PRMT option
  ACPI: PM: Only mark EC GPE for wakeup on Intel systems
  ACPI: video: Add quirk for the Dell Vostro 3350
  ACPI: AMBA: Fix resource name in /proc/iomem
 2021-07-07 13:30:01 -07:00
Rafael J. Wysocki
166fdb4dd0 Merge branches 'acpi-misc', 'acpi-video' and 'acpi-prm' 
* acpi-misc:
  ACPI: AMBA: Fix resource name in /proc/iomem

* acpi-video:
  ACPI: video: Add quirk for the Dell Vostro 3350

* acpi-prm:
  ACPI: Do not singal PRM support if not enabled
  ACPI: Correct \_SB._OSC bit definition for PRM
  ACPI: Kconfig: Provide help text for the ACPI_PRMT option
 2021-07-07 20:18:11 +02:00
Linus Torvalds
cd3eb7efaa IOMMU Updates for Linux v5.14 
Including:
 
  - SMMU Updates from Will Deacon:
 
      - SMMUv3: Support stalling faults for platform devices
      - SMMUv3: Decrease defaults sizes for the event and PRI queues
      - SMMUv2: Support for a new '->probe_finalize' hook, needed by Nvidia
      - SMMUv2: Even more Qualcomm compatible strings
      - SMMUv2: Avoid Adreno TTBR1 quirk for DB820C platform
 
  - Intel VT-d updates from Lu Baolu:
 
      - Convert Intel IOMMU to use sva_lib helpers in iommu core
      - ftrace and debugfs supports for page fault handling
      - Support asynchronous nested capabilities
      - Various misc cleanups
 
  - Support for new VIOT ACPI table to make the VirtIO IOMMU:
    available on x86
 
  - Add the amd_iommu=force_enable command line option to
    enable the IOMMU on platforms where they are known to cause
    problems
 
  - Support for version 2 of the Rockchip IOMMU
 
  - Various smaller fixes, cleanups and refactorings
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Merge tag 'iommu-updates-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:

 - SMMU Updates from Will Deacon:

     - SMMUv3:
        - Support stalling faults for platform devices
        - Decrease defaults sizes for the event and PRI queues
     - SMMUv2:
        - Support for a new '->probe_finalize' hook, needed by Nvidia
        - Even more Qualcomm compatible strings
        - Avoid Adreno TTBR1 quirk for DB820C platform

 - Intel VT-d updates from Lu Baolu:

     - Convert Intel IOMMU to use sva_lib helpers in iommu core
     - ftrace and debugfs supports for page fault handling
     - Support asynchronous nested capabilities
     - Various misc cleanups

 - Support for new VIOT ACPI table to make the VirtIO IOMMU
   available on x86

 - Add the amd_iommu=force_enable command line option to enable
   the IOMMU on platforms where they are known to cause problems

 - Support for version 2 of the Rockchip IOMMU

 - Various smaller fixes, cleanups and refactorings

* tag 'iommu-updates-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (66 commits)
  iommu/virtio: Enable x86 support
  iommu/dma: Pass address limit rather than size to iommu_setup_dma_ops()
  ACPI: Add driver for the VIOT table
  ACPI: Move IOMMU setup code out of IORT
  ACPI: arm64: Move DMA setup operations out of IORT
  iommu/vt-d: Fix dereference of pointer info before it is null checked
  iommu: Update "iommu.strict" documentation
  iommu/arm-smmu: Check smmu->impl pointer before dereferencing
  iommu/arm-smmu-v3: Remove unnecessary oom message
  iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
  iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails
  iommu/vt-d: Fix linker error on 32-bit
  iommu/vt-d: No need to typecast
  iommu/vt-d: Define counter explicitly as unsigned int
  iommu/vt-d: Remove unnecessary braces
  iommu/vt-d: Removed unused iommu_count in dmar domain
  iommu/vt-d: Use bitfields for DMAR capabilities
  iommu/vt-d: Use DEVICE_ATTR_RO macro
  iommu/vt-d: Fix out-bounds-warning in intel/svm.c
  iommu/vt-d: Add PRQ handling latency sampling
  ...
 2021-07-02 13:22:47 -07:00
Aubrey Li
bd7a94c0fa ACPI: Correct \_SB._OSC bit definition for PRM 
According to Platform Runtime Mechanism Specification v1.0 [1],
Page 42, \_SB._OSC bit 21 is used to indicate OS support for PRM.

Update the definition of the PRM support bit in the code to match the
specification.

Link: https://uefi.org/sites/default/files/resources/Platform%20Runtime%20Mechanism%20-%20with%20legal%20notice.pdf # [1]
Fixes: 60faa8f1ac ("ACPI: Add \_SB._OSC bit for PRM")
Signed-off-by: Aubrey Li <aubrey.li@linux.intel.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2021-07-02 15:47:44 +02:00
Linus Torvalds
dbe69e4337 Networking changes for 5.14. 
Core:
 
  - BPF:
    - add syscall program type and libbpf support for generating
      instructions and bindings for in-kernel BPF loaders (BPF loaders
      for BPF), this is a stepping stone for signed BPF programs
    - infrastructure to migrate TCP child sockets from one listener
      to another in the same reuseport group/map to improve flexibility
      of service hand-off/restart
    - add broadcast support to XDP redirect
 
  - allow bypass of the lockless qdisc to improving performance
    (for pktgen: +23% with one thread, +44% with 2 threads)
 
  - add a simpler version of "DO_ONCE()" which does not require
    jump labels, intended for slow-path usage
 
  - virtio/vsock: introduce SOCK_SEQPACKET support
 
  - add getsocketopt to retrieve netns cookie
 
  - ip: treat lowest address of a IPv4 subnet as ordinary unicast address
        allowing reclaiming of precious IPv4 addresses
 
  - ipv6: use prandom_u32() for ID generation
 
  - ip: add support for more flexible field selection for hashing
        across multi-path routes (w/ offload to mlxsw)
 
  - icmp: add support for extended RFC 8335 PROBE (ping)
 
  - seg6: add support for SRv6 End.DT46 behavior
 
  - mptcp:
     - DSS checksum support (RFC 8684) to detect middlebox meddling
     - support Connection-time 'C' flag
     - time stamping support
 
  - sctp: packetization Layer Path MTU Discovery (RFC 8899)
 
  - xfrm: speed up state addition with seq set
 
  - WiFi:
     - hidden AP discovery on 6 GHz and other HE 6 GHz improvements
     - aggregation handling improvements for some drivers
     - minstrel improvements for no-ack frames
     - deferred rate control for TXQs to improve reaction times
     - switch from round robin to virtual time-based airtime scheduler
 
  - add trace points:
     - tcp checksum errors
     - openvswitch - action execution, upcalls
     - socket errors via sk_error_report
 
 Device APIs:
 
  - devlink: add rate API for hierarchical control of max egress rate
             of virtual devices (VFs, SFs etc.)
 
  - don't require RCU read lock to be held around BPF hooks
    in NAPI context
 
  - page_pool: generic buffer recycling
 
 New hardware/drivers:
 
  - mobile:
     - iosm: PCIe Driver for Intel M.2 Modem
     - support for Qualcomm MSM8998 (ipa)
 
  - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices
 
  - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches
 
  - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)
 
  - NXP SJA1110 Automotive Ethernet 10-port switch
 
  - Qualcomm QCA8327 switch support (qca8k)
 
  - Mikrotik 10/25G NIC (atl1c)
 
 Driver changes:
 
  - ACPI support for some MDIO, MAC and PHY devices from Marvell and NXP
    (our first foray into MAC/PHY description via ACPI)
 
  - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx
 
  - Mellanox/Nvidia NIC (mlx5)
    - NIC VF offload of L2 bridging
    - support IRQ distribution to Sub-functions
 
  - Marvell (prestera):
     - add flower and match all
     - devlink trap
     - link aggregation
 
  - Netronome (nfp): connection tracking offload
 
  - Intel 1GE (igc): add AF_XDP support
 
  - Marvell DPU (octeontx2): ingress ratelimit offload
 
  - Google vNIC (gve): new ring/descriptor format support
 
  - Qualcomm mobile (rmnet & ipa): inline checksum offload support
 
  - MediaTek WiFi (mt76)
     - mt7915 MSI support
     - mt7915 Tx status reporting
     - mt7915 thermal sensors support
     - mt7921 decapsulation offload
     - mt7921 enable runtime pm and deep sleep
 
  - Realtek WiFi (rtw88)
     - beacon filter support
     - Tx antenna path diversity support
     - firmware crash information via devcoredump
 
  - Qualcomm 60GHz WiFi (wcn36xx)
     - Wake-on-WLAN support with magic packets and GTK rekeying
 
  - Micrel PHY (ksz886x/ksz8081): add cable test support
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - BPF:
      - add syscall program type and libbpf support for generating
        instructions and bindings for in-kernel BPF loaders (BPF loaders
        for BPF), this is a stepping stone for signed BPF programs
      - infrastructure to migrate TCP child sockets from one listener to
        another in the same reuseport group/map to improve flexibility
        of service hand-off/restart
      - add broadcast support to XDP redirect

   - allow bypass of the lockless qdisc to improving performance (for
     pktgen: +23% with one thread, +44% with 2 threads)

   - add a simpler version of "DO_ONCE()" which does not require jump
     labels, intended for slow-path usage

   - virtio/vsock: introduce SOCK_SEQPACKET support

   - add getsocketopt to retrieve netns cookie

   - ip: treat lowest address of a IPv4 subnet as ordinary unicast
     address allowing reclaiming of precious IPv4 addresses

   - ipv6: use prandom_u32() for ID generation

   - ip: add support for more flexible field selection for hashing
     across multi-path routes (w/ offload to mlxsw)

   - icmp: add support for extended RFC 8335 PROBE (ping)

   - seg6: add support for SRv6 End.DT46 behavior

   - mptcp:
      - DSS checksum support (RFC 8684) to detect middlebox meddling
      - support Connection-time 'C' flag
      - time stamping support

   - sctp: packetization Layer Path MTU Discovery (RFC 8899)

   - xfrm: speed up state addition with seq set

   - WiFi:
      - hidden AP discovery on 6 GHz and other HE 6 GHz improvements
      - aggregation handling improvements for some drivers
      - minstrel improvements for no-ack frames
      - deferred rate control for TXQs to improve reaction times
      - switch from round robin to virtual time-based airtime scheduler

   - add trace points:
      - tcp checksum errors
      - openvswitch - action execution, upcalls
      - socket errors via sk_error_report

  Device APIs:

   - devlink: add rate API for hierarchical control of max egress rate
     of virtual devices (VFs, SFs etc.)

   - don't require RCU read lock to be held around BPF hooks in NAPI
     context

   - page_pool: generic buffer recycling

  New hardware/drivers:

   - mobile:
      - iosm: PCIe Driver for Intel M.2 Modem
      - support for Qualcomm MSM8998 (ipa)

   - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices

   - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches

   - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)

   - NXP SJA1110 Automotive Ethernet 10-port switch

   - Qualcomm QCA8327 switch support (qca8k)

   - Mikrotik 10/25G NIC (atl1c)

  Driver changes:

   - ACPI support for some MDIO, MAC and PHY devices from Marvell and
     NXP (our first foray into MAC/PHY description via ACPI)

   - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx

   - Mellanox/Nvidia NIC (mlx5)
      - NIC VF offload of L2 bridging
      - support IRQ distribution to Sub-functions

   - Marvell (prestera):
      - add flower and match all
      - devlink trap
      - link aggregation

   - Netronome (nfp): connection tracking offload

   - Intel 1GE (igc): add AF_XDP support

   - Marvell DPU (octeontx2): ingress ratelimit offload

   - Google vNIC (gve): new ring/descriptor format support

   - Qualcomm mobile (rmnet & ipa): inline checksum offload support

   - MediaTek WiFi (mt76)
      - mt7915 MSI support
      - mt7915 Tx status reporting
      - mt7915 thermal sensors support
      - mt7921 decapsulation offload
      - mt7921 enable runtime pm and deep sleep

   - Realtek WiFi (rtw88)
      - beacon filter support
      - Tx antenna path diversity support
      - firmware crash information via devcoredump

   - Qualcomm WiFi (wcn36xx)
      - Wake-on-WLAN support with magic packets and GTK rekeying

   - Micrel PHY (ksz886x/ksz8081): add cable test support"

* tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits)
  tcp: change ICSK_CA_PRIV_SIZE definition
  tcp_yeah: check struct yeah size at compile time
  gve: DQO: Fix off by one in gve_rx_dqo()
  stmmac: intel: set PCI_D3hot in suspend
  stmmac: intel: Enable PHY WOL option in EHL
  net: stmmac: option to enable PHY WOL with PMT enabled
  net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del}
  net: use netdev_info in ndo_dflt_fdb_{add,del}
  ptp: Set lookup cookie when creating a PTP PPS source.
  net: sock: add trace for socket errors
  net: sock: introduce sk_error_report
  net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
  net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev
  net: dsa: include fdb entries pointing to bridge in the host fdb list
  net: dsa: include bridge addresses which are local in the host fdb list
  net: dsa: sync static FDB entries on foreign interfaces to hardware
  net: dsa: install the host MDB and FDB entries in the master's RX filter
  net: dsa: reference count the FDB addresses at the cross-chip notifier level
  net: dsa: introduce a separate cross-chip notifier type for host FDBs
  net: dsa: reference count the MDB entries at the cross-chip notifier level
  ...
 2021-06-30 15:51:09 -07:00
Linus Torvalds
440462198d for-5.14/drivers-2021-06-29 
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Merge tag 'for-5.14/drivers-2021-06-29' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:
 "Pretty calm round, mostly just NVMe and a bit of MD:

   - NVMe updates (via Christoph)
        - improve the APST configuration algorithm (Alexey Bogoslavsky)
        - look for StorageD3Enable on companion ACPI device
          (Mario Limonciello)
        - allow selecting the network interface for TCP connections
          (Martin Belanger)
        - misc cleanups (Amit Engel, Chaitanya Kulkarni, Colin Ian King,
          Christoph)
        - move the ACPI StorageD3 code to drivers/acpi/ and add quirks
          for certain AMD CPUs (Mario Limonciello)
        - zoned device support for nvmet (Chaitanya Kulkarni)
        - fix the rules for changing the serial number in nvmet
          (Noam Gottlieb)
        - various small fixes and cleanups (Dan Carpenter, JK Kim,
          Chaitanya Kulkarni, Hannes Reinecke, Wesley Sheng, Geert
          Uytterhoeven, Daniel Wagner)

   - MD updates (Via Song)
        - iostats rewrite (Guoqing Jiang)
        - raid5 lock contention optimization (Gal Ofri)

   - Fall through warning fix (Gustavo)

   - Misc fixes (Gustavo, Jiapeng)"

* tag 'for-5.14/drivers-2021-06-29' of git://git.kernel.dk/linux-block: (78 commits)
  nvmet: use NVMET_MAX_NAMESPACES to set nn value
  loop: Fix missing discard support when using LOOP_CONFIGURE
  nvme.h: add missing nvme_lba_range_type endianness annotations
  nvme: remove zeroout memset call for struct
  nvme-pci: remove zeroout memset call for struct
  nvmet: remove zeroout memset call for struct
  nvmet: add ZBD over ZNS backend support
  nvmet: add Command Set Identifier support
  nvmet: add nvmet_req_bio put helper for backends
  nvmet: add req cns error complete helper
  block: export blk_next_bio()
  nvmet: remove local variable
  nvmet: use nvme status value directly
  nvmet: use u32 type for the local variable nsid
  nvmet: use u32 for nvmet_subsys max_nsid
  nvmet: use req->cmd directly in file-ns fast path
  nvmet: use req->cmd directly in bdev-ns fast path
  nvmet: make ver stable once connection established
  nvmet: allow mn change if subsys not discovered
  nvmet: make sn stable once connection was established
  ...
 2021-06-30 12:21:16 -07:00
Linus Torvalds
776ba3ad65 platform-drivers-x86 for v5.14-1 
Highlights:
  - New think-lmi driver adding support for changing BIOS settings from
    within Linux using the standard firmware-attributes class sysfs API
  - MS Surface aggregator-cdev now also supports forwarding events to
    user-space (for debugging / new driver development purposes only)
  - New intel_skl_int3472 driver this provides the necessary glue to
    translate ACPI table information to GPIOs, regulators, etc. for
    camera sensors on Intel devices with IPU3 attached MIPI cameras
  - A whole bunch of other fixes + device-specific quirk additions
  - New devm_work_autocancel() devm-helpers.h function
 
 Note this also contains merges of the following immutable branches/tags
 shared with other subsystems:
  - platform-drivers-x86-goodix-v5.14-1
  - intel-gpio-v5.14-1
  - linux-pm/acpi-scan
  - devm-helpers-v5.14-1
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI:
  -  scan: initialize local variable to avoid garbage being returned
  -  scan: Add function to fetch dependent of ACPI device
  -  scan: Extend acpi_walk_dep_device_list()
  -  scan: Rearrange dep_unmet initialization
 
 Add intel_skl_int3472 driver:
  - Add intel_skl_int3472 driver
 
 ISST:
  -  Use numa node id for cpu pci dev mapping
  -  Optimize CPU to PCI device mapping
 
 Input:
  -  goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c
 
 MAINTAINERS:
  -  Update IRC link for Surface System Aggregator subsystem
  -  Update info for telemetry
 
 Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans:
  - Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans
 
 Merge tag 'devm-helpers-v5.14-1' into review-hans:
  - Merge tag 'devm-helpers-v5.14-1' into review-hans
 
 Merge tag 'intel-gpio-v5.14-1' into review-hans:
  - Merge tag 'intel-gpio-v5.14-1' into review-hans
 
 Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans:
  - Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans
 
 Remove "default n" entries:
  - Remove "default n" entries
 
 Rename hp-wireless to wireless-hotkey:
  - Rename hp-wireless to wireless-hotkey
 
 asus-nb-wmi:
  -  Revert "add support for ASUS ROG Zephyrus G14 and G15"
  -  Revert "Drop duplicate DMI quirk structures"
 
 dcdbas:
  -  drop unneeded assignment in host_control_smi()
 
 dell-privacy:
  -  Add support for Dell hardware privacy
 
 dell-wmi:
  -  Rename dell-wmi.c to dell-wmi-base.c
 
 dell-wmi-sysman:
  -  Change user experience when Admin/System Password is modified
  -  fw_attr_inuse can be static
  -  Use firmware_attributes_class helper
  -  Make populate_foo_data functions more robust
 
 dell-wmi-sysman/think-lmi:
  -  Make fw_attr_class global static
 
 devm-helpers:
  -  Add resource managed version of work init
 
 docs:
  -  driver-api: Update Surface Aggregator user-space interface documentation
 
 extcon:
  -  extcon-max8997: Simplify driver using devm
  -  extcon-max8997: Fix IRQ freeing at error path
  -  extcon-max77693.c: Fix potential work-queue cancellation race
  -  extcon-max14577: Fix potential work-queue cancellation race
 
 firmware_attributes_class:
  -  Create helper file for handling firmware-attributes class registration events
 
 gpio:
  -  wcove: Split error handling for CTRL and IRQ registers
  -  wcove: Unify style of to_reg() with to_ireg()
  -  wcove: Use IRQ hardware number getter instead of direct access
  -  crystalcove: remove platform_set_drvdata() + cleanup probe
 
 gpiolib:
  -  acpi: Add acpi_gpio_get_io_resource()
  -  acpi: Introduce acpi_get_and_request_gpiod() helper
 
 hdaps:
  -  Constify static attribute_group struct
 
 ideapad-laptop:
  -  Ignore VPC event bit 10
 
 intel_cht_int33fe:
  -  Move to its own subfolder
  -  Correct "displayport" fwnode reference
 
 intel_ips:
  -  fix set but unused warning in read_mgtv
 
 intel_pmt_crashlog:
  -  Constify static attribute_group struct
 
 intel_skl_int3472:
  -  Uninitialized variable in skl_int3472_handle_gpio_resources()
  -  Move to intel/ subfolder
  -  Provide skl_int3472_unregister_clock()
  -  Provide skl_int3472_unregister_regulator()
  -  Use ACPI GPIO resource directly
  -  Fix dependencies (drop CLKDEV_LOOKUP)
  -  Free ACPI device resources after use
 
 mfd:
  -  tps68470: Remove tps68470 MFD driver
 
 platform/mellanox:
  -  mlxreg-hotplug: Revert "move to use request_irq by IRQF_NO_AUTOEN flag"
 
 platform/surface:
  -  aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_packet_layer.c
  -  aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_request_layer.c
  -  aggregator: Drop unnecessary variable initialization
  -  aggregator: Do not return uninitialized value
  -  aggregator_cdev: Add lockdep support
  -  aggregator_cdev: Allow enabling of events from user-space
  -  aggregator_cdev: Add support for forwarding events to user-space
  -  aggregator: Update copyright
  -  aggregator: Allow enabling of events without notifiers
  -  aggregator: Allow registering notifiers without enabling events
  -  dtx: Add missing mutex_destroy() call in failure path
  -  aggregator: Fix event disable function
  -  aggregator_registry: Consolidate node groups for 5th- and 6th-gen devices
  -  aggregator_registry: Add support for 13" Intel Surface Laptop 4
  -  aggregator_registry: Update comments for 15" AMD Surface Laptop 4
 
 samsung-laptop:
  -  set debugfs blobs to read only
  -  use octal numbers for rwx file permissions
 
 tc1100-wmi:
  -  Constify static attribute_group struct
 
 think-lmi:
  -  Move kfree(setting->possible_values) to tlmi_attr_setting_release()
  -  Split current_value to reflect only the value
  -  Fix issues with duplicate attributes
  -  Return EINVAL when kbdlang gets set to a 0 length string
  -  Add missing MODULE_DEVICE_TABLE
  -  Avoid potential read before start of the buffer
  -  Fix check for admin password being set
  -  Add WMI interface support on Lenovo platforms
 
 thinkpad-lmi:
  -  Remove unused display_name member from struct tlmi_pwd_setting
 
 thinkpad_acpi:
  -  Add X1 Carbon Gen 9 second fan support
  -  Fix inconsistent indenting
 
 tools/power/x86/intel-speed-select:
  -  v1.10 release
  -  Fix uncore memory frequency display
 
 toshiba_acpi:
  -  Fix missing error code in toshiba_acpi_setup_keyboard()
 
 toshiba_haps:
  -  Fix missing newline in pr_debug call in toshiba_haps_notify
 
 touchscreen_dmi:
  -  Fix Chuwi Hi10 Pro comment
  -  Add info for the Goodix GT912 panel of TM800A550L tablets
  -  Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets
 
 x86/platform/uv:
  -  Constify static attribute_group struct
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Merge tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:
 "Highlights:

   - New think-lmi driver adding support for changing Lenovo Thinkpad
     BIOS settings from within Linux using the standard firmware-
     attributes class sysfs API

   - MS Surface aggregator-cdev now also supports forwarding events to
     user-space (for debugging / new driver development purposes only)

   - New intel_skl_int3472 driver this provides the necessary glue to
     translate ACPI table information to GPIOs, regulators, etc. for
     camera sensors on Intel devices with IPU3 attached MIPI cameras

   - A whole bunch of other fixes + device-specific quirk additions

   - New devm_work_autocancel() devm-helpers.h function"

* tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (83 commits)
  platform/x86: dell-wmi-sysman: Change user experience when Admin/System Password is modified
  platform/x86: intel_skl_int3472: Uninitialized variable in skl_int3472_handle_gpio_resources()
  platform/x86: think-lmi: Move kfree(setting->possible_values) to tlmi_attr_setting_release()
  platform/x86: think-lmi: Split current_value to reflect only the value
  platform/x86: think-lmi: Fix issues with duplicate attributes
  platform/x86: think-lmi: Return EINVAL when kbdlang gets set to a 0 length string
  platform/x86: intel_cht_int33fe: Move to its own subfolder
  platform/x86: intel_skl_int3472: Move to intel/ subfolder
  platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_clock()
  platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_regulator()
  platform/x86: intel_skl_int3472: Use ACPI GPIO resource directly
  platform/x86: intel_skl_int3472: Fix dependencies (drop CLKDEV_LOOKUP)
  platform/x86: intel_skl_int3472: Free ACPI device resources after use
  platform/x86: Remove "default n" entries
  platform/x86: ISST: Use numa node id for cpu pci dev mapping
  platform/x86: ISST: Optimize CPU to PCI device mapping
  tools/power/x86/intel-speed-select: v1.10 release
  tools/power/x86/intel-speed-select: Fix uncore memory frequency display
  extcon: extcon-max8997: Simplify driver using devm
  extcon: extcon-max8997: Fix IRQ freeing at error path
  ...
 2021-06-30 11:15:39 -07:00
Linus Torvalds
349a2d52ff Device properties framework updates for 5.14-rc1 
- Handle device properties with software node API in the ACPI
    IORT table parsing code (Heikki Krogerus).
 
  - Unify of_node access in the common device properties code,
    constify the acpi_dma_supported() argument pointer and
    fix up CONFIG_ACPI=n stubs of some functions related to
    device properties (Andy Shevchenko).
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Merge tag 'devprop-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties framework updates from Rafael Wysocki:
 "These unify device properties access in some pieces of code and make
  related changes.

  Specifics:

   - Handle device properties with software node API in the ACPI IORT
     table parsing code (Heikki Krogerus).

   - Unify of_node access in the common device properties code, constify
     the acpi_dma_supported() argument pointer and fix up CONFIG_ACPI=n
     stubs of some functions related to device properties (Andy
     Shevchenko)"

* tag 'devprop-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  device property: Unify access to of_node
  ACPI: scan: Constify acpi_dma_supported() helper function
  ACPI: property: Constify stubs for CONFIG_ACPI=n case
  ACPI: IORT: Handle device properties with software node API
  device property: Retrieve fwnode from of_node via accessor
 2021-06-29 14:04:37 -07:00
Rafael J. Wysocki
3a616ec797 Merge branches 'acpi-prm', 'acpi-sysfs' and 'acpi-x86' 
* acpi-prm:
  ACPI: PRM: make symbol 'prm_module_list' static
  ACPI: Add \_SB._OSC bit for PRM
  ACPI: PRM: implement OperationRegion handler for the PlatformRtMechanism subtype

* acpi-sysfs:
  ACPI: sysfs: Remove tailing return statement in void function
  ACPI: sysfs: Use __ATTR_RO() and __ATTR_RW() macros
  ACPI: sysfs: Sort headers alphabetically
  ACPI: sysfs: Refactor param_get_trace_state() to drop dead code
  ACPI: sysfs: Unify pattern of memory allocations
  ACPI: sysfs: Allow bitmap list to be supplied to acpi_mask_gpe
  ACPI: sysfs: Make sparse happy about address space in use
  ACPI: sysfs: fix doc warnings in device_sysfs.c
  ACPI: sysfs: Drop four redundant return statements
  ACPI: sysfs: Fix a buffer overrun problem with description_show()

* acpi-x86:
  x86/acpi: Switch to pr_xxx log functions
 2021-06-29 15:48:08 +02:00
Jean-Philippe Brucker
db59e1b6e4 ACPI: arm64: Move DMA setup operations out of IORT 
Extract generic DMA setup code out of IORT, so it can be reused by VIOT.
Keep it in drivers/acpi/arm64 for now, since it could break x86
platforms that haven't run this code so far, if they have invalid
tables.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20210618152059.1194210-2-jean-philippe@linaro.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
 2021-06-25 15:02:43 +02:00
Rafael J. Wysocki
aff0dbd03d ACPI: scan: Make acpi_walk_dep_device_list() 
Because acpi_walk_dep_device_list() is only called by the code in the
file in which it is defined, make it static, drop the export of it
and drop its header from acpi.h.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
 2021-06-17 15:56:03 +02:00
Hans de Goede
c8d9c3674c Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans 2021-06-16 17:48:22 +02:00
Mario Limonciello
2744d7a073 ACPI: Check StorageD3Enable _DSD property in ACPI code 
Although first implemented for NVME, this check may be usable by
other drivers as well. Microsoft's specification explicitly mentions
that is may be usable by SATA and AHCI devices.  Google also indicates
that they have used this with SDHCI in a downstream kernel tree that
a user can plug a storage device into.

Link: https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/power-management-for-storage-hardware-devices-intro
Suggested-by: Keith Busch <kbusch@kernel.org>
CC: Shyam-sundar S-k <Shyam-sundar.S-k@amd.com>
CC: Alexander Deucher <Alexander.Deucher@amd.com>
CC: Rafael J. Wysocki <rjw@rjwysocki.net>
CC: Prike Liang <prike.liang@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
 2021-06-16 05:14:59 +02:00
Calvin Johnson
7ec16433cf ACPI: utils: Introduce acpi_get_local_address() 
Introduce a wrapper around the _ADR evaluation.

Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Grant Likely <grant.likely@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2021-06-11 13:08:53 -07:00
Erik Kaneda
60faa8f1ac ACPI: Add \_SB._OSC bit for PRM 
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2021-06-10 15:07:55 +02:00