Commit Graph

648 Commits

Author SHA1 Message Date
Giulio Benetti
9256dac0c6 ACPI: scan: substitute empty_zero_page with helper ZERO_PAGE(0)
Not all zero page implementations use empty_zero_page global pointer so
let's substitute empty_zero_page occurence with helper ZERO_PAGE(0).

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-11-03 19:51:52 +01:00
Hans de Goede
fa153b7cdd ACPI: scan: Add LATT2021 to acpi_ignore_dep_ids[]
Some x86/ACPI laptops with MIPI cameras have a LATT2021 ACPI device
in the _DEP dependency list of the ACPI devices for the camera-sensors
(which have flags.honor_deps set).

The _DDN for the LATT2021 device is "Lattice FW Update Client Driver",
suggesting that this is used for firmware updates of something. There
is no Linux driver for this and if Linux gets support for updates it
will likely be in userspace through fwupd.

For now add the LATT2021 HID to acpi_ignore_dep_ids[] so that
acpi_dev_ready_for_enumeration() will return true once the other _DEP
dependencies are met.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-10-26 13:44:13 +02:00
Robin Murphy
64d23ff38a ACPI: scan: Fix DMA range assignment
Assigning the device's dma_range_map from the iterator variable after
the loop means it always points to the empty terminator at the end of
the map, which is not what we want. Similarly, freeing the iterator on
error when it points to somwhere in the middle of the allocated array
won't work either. Fix this.

Fixes: bf2ee8d0c3 ("ACPI: scan: Support multiple DMA windows with different offsets")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Jianmin Lv <lvjianmin@loongson.cn>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-10-19 20:27:31 +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
Daniel Scally
cca8a7efea ACPI: scan: Add acpi_dev_get_next_consumer_dev()
In commit b83e2b3067 ("ACPI: scan: Add function to fetch dependent
of ACPI device") we added a means of fetching the first device to
declare itself dependent on another ACPI device in the _DEP method.
One assumption in that patch was that there would only be a single
consuming device, but this has not held.

Replace that function with a new function that fetches the next consumer
of a supplier device. Where no "previous" consumer is passed in, it
behaves identically to the original function.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-09-24 19:12:32 +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
Rafael J. Wysocki
62fcb99bdf ACPI: Drop parent field from struct acpi_device
The parent field in struct acpi_device is, in fact, redundant,
because the dev.parent field in it effectively points to the same
object and it is used by the driver core.

Accordingly, the parent field can be dropped from struct acpi_device
and for this purpose define acpi_dev_parent() to retrieve a parent
struct acpi_device pointer from the dev.parent field in struct
acpi_device.  Next, update all of the users of the parent field
in struct acpi_device to use acpi_dev_parent() instead of it and
drop it.

While at it, drop the ACPI_IS_ROOT_DEVICE() macro that is only used
in one place in a confusing way.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Wei Liu <wei.liu@kernel.org>
Reviewed-by: Punit Agrawal <punit.agrawal@bytedance.com>
2022-08-24 20:55:24 +02:00
Rafael J. Wysocki
6e1850b2f3 ACPI: scan: Eliminate __acpi_device_add()
Instead of having acpi_device_add() defined as a wrapper around
__acpi_device_add(), export acpi_tie_acpi_dev() so it can be called
directly by acpi_add_power_resource(), fold acpi_device_add() into the
latter and rename __acpi_device_add() to acpi_device_add().

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Punit Agrawal <punit.agrawal@bytedance.com>
2022-08-23 18:19:27 +02:00
Rafael J. Wysocki
5c5e123703 ACPI: scan: Rearrange initialization of ACPI device objects
The initialization of ACPI device objects is split between
acpi_init_device_object() and __acpi_device_add() that initializes
the dev field in struct acpi_device.  The "release" function pointer
is passed to __acpi_device_add() for this reason.

However, that split is artificial and all of the initialization can
be carried out by acpi_init_device_object(), so rearrange the code
to that end.  In particular, make acpi_init_device_object() take the
"release" pointer as an argument, along with the "type" which is
related to it, instead of __acpi_device_add().

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Punit Agrawal <punit.agrawal@bytedance.com>
2022-08-23 18:19:27 +02:00
Rafael J. Wysocki
f6f1e12f3a ACPI: scan: Rename acpi_bus_get_parent() and rearrange it
The acpi_bus_get_parent() name doesn't really reflect the
purpose of the function so change it to a more accurate
acpi_find_parent_acpi_dev().

While at it, rearrange the code inside that function to make it
easier to read.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Punit Agrawal <punit.agrawal@bytedance.com>
2022-08-23 18:19:27 +02:00
Rafael J. Wysocki
45e9aa1fdb ACPI: Rename acpi_bus_get/put_acpi_device()
Because acpi_bus_get_acpi_device() is completely analogous to
acpi_fetch_acpi_dev(), rename it to acpi_get_acpi_dev() and
add a kerneldoc comment to it.

Accordingly, rename acpi_bus_put_acpi_device() to acpi_put_acpi_dev()
and update all of the users of these two functions.

While at it, move the acpi_fetch_acpi_dev() header next to the
acpi_get_acpi_dev() header in the header file holding them.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Punit Agrawal <punit.agrawal@bytedance.com>
2022-08-23 18:19:27 +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
Lucas Tanure
87eb04bb87 ACPI: scan: Add CLSA0101 Laptop Support
Add CLSA0101 id to the ignore_serial_bus_ids
so serial-multi-instantiate can correctly
instantiate the driver.

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220727095924.80884-4-tanureal@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-07-28 11:36:18 +02:00
Rafael J. Wysocki
e6bdbcc764 ACPI: bus: Drop unused list heads from struct acpi_device
Drop the children and node list heads that have no more users
from struct acpi_device and the code manipulating them from
__acpi_device_add() and acpi_device_del().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2022-07-01 21:20:12 +02:00
Rafael J. Wysocki
a976a2ac77 ACPI: scan: Walk ACPI device's children using driver core
Instead of walking the list of children of an ACPI device directly, use
acpi_dev_for_each_child() or acpi_dev_for_each_child_reverse() to carry
out an action for all of the given ACPI device's children.

This will help to eliminate the children list head from struct
acpi_device as it is redundant and it is used in questionable ways
in some places (in particular, locking is needed for walking the
list pointed to it safely, but it is often missing).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2022-06-21 14:34:28 +02:00
Rafael J. Wysocki
ac2a3feefa ACPI: bus: Eliminate acpi_bus_get_device()
Replace the last instance of acpi_bus_get_device(), added recently
by commit 87e59b36e5 ("spi: Support selection of the index of the
ACPI Spi Resource before alloc"), with acpi_fetch_acpi_dev() and
finally drop acpi_bus_get_device() that has no more users.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
2022-04-05 19:49:26 +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
40037e4f8b sound updates for 5.18
It's been a fairly calm development cycle.  There are a few
 last-minute ALSA core fixes, most notably for covering PCM ioctl
 races, but the most of rest are device-specific changes.
 
 Below are some highlights:
 
 * ALSA core:
 - Fixes for PCM ioctl races that may lead to UAF
 - Fix for oversized allocations in PCM OSS layer
 
 * ASoC:
 - Start of moving SoF to support multiple IPC mechanisms
 - Use of NHLT ACPI table to reduce the amount of quirking required for
   Intel systems
 - Preliminary works forthcoming Intel AVS driver for legacy Intel DSP
   firmwares
 - Support for AMD PDM, Atmel PDMC, Awinic AW8738, i.MX cards with
   TLV320AIC31xx, Intel machines with CS35L41 and ESSX8336, Mediatek
   MT8181 wideband bluetooth, nVidia Tegra234, Qualcomm SC7280, Renesas
   RZ/V2L, Texas Instruments TAS585M
 
 * HD-audio:
 - Driver re-binding fix for HD-audio
 - Updates for Intel ADL and Tegra234, various platform quirks for
   Dell, HP, Lenovo, ASUS, Samsung and Clevo machines
 
 * USB-audio:
 - Quirk updates for Scarlett2, RODE, Corsair devices
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Merge tag 'sound-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "It's been a fairly calm development cycle. There are a few last-minute
  ALSA core fixes, most notably for covering PCM ioctl races, but the
  most of rest are device-specific changes.

  Below are some highlights:

  ALSA core:

   - Fixes for PCM ioctl races that may lead to UAF

   - Fix for oversized allocations in PCM OSS layer

  ASoC:

   - Start of moving SoF to support multiple IPC mechanisms

   - Use of NHLT ACPI table to reduce the amount of quirking required
     for Intel systems

   - Preliminary works forthcoming Intel AVS driver for legacy Intel DSP
     firmwares

   - Support for AMD PDM, Atmel PDMC, Awinic AW8738, i.MX cards with
     TLV320AIC31xx, Intel machines with CS35L41 and ESSX8336, Mediatek
     MT8181 wideband bluetooth, nVidia Tegra234, Qualcomm SC7280,
     Renesas RZ/V2L, Texas Instruments TAS585M

  HD-audio:

   - Driver re-binding fix for HD-audio

   - Updates for Intel ADL and Tegra234, various platform quirks for
     Dell, HP, Lenovo, ASUS, Samsung and Clevo machines

  USB-audio:

   - Quirk updates for Scarlett2, RODE, Corsair devices"

* tag 'sound-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (486 commits)
  ALSA: hda/realtek: Add alc256-samsung-headphone fixup
  ALSA: pci: fix reading of swapped values from pcmreg in AC97 codec
  ALSA: pcm: Add stream lock during PCM reset ioctl operations
  ALSA: pcm: Fix races among concurrent prealloc proc writes
  ALSA: pcm: Fix races among concurrent prepare and hw_params/hw_free calls
  ALSA: pcm: Fix races among concurrent read/write and buffer changes
  ALSA: pcm: Fix races among concurrent hw_params and hw_free calls
  ASoC: atmel: mchp-pdmc: print the correct property name
  MAINTAINERS: Add Shengjiu to maintainer list of sound/soc/fsl
  ASoC: SOF: Add a new dai_get_clk topology IPC op
  ASoC: SOF: topology: Add ops for setting up and tearing down pipelines
  ASoC: SOF: expose sof_route_setup()
  ASoC: SOF: Add dai_link_fixup PCM op for IPC3
  ASoC: SOF: Add trigger PCM op for IPC3
  ASoC: SOF: Define hw_params PCM op for IPC3
  ASoC: SOF: Introduce IPC3 PCM hw_free op
  ASoC: SOF: pcm: expose the sof_pcm_setup_connected_widgets() function
  ASoC: SOF: Introduce IPC-specific PCM ops
  ASoC: SOF: Add bytes_ext control IPC ops for IPC3
  ASoC: SOF: Add bytes_get/put control IPC ops for IPC3
  ...
2022-03-23 15:11:12 -07:00
Rafael J. Wysocki
bf978a83ed Merge back ACPI device enumeration material for v5.18. 2022-03-18 14:03:10 +01:00
Rafael J. Wysocki
462ccc35a7 Revert "ACPI: scan: Do not add device IDs from _CID if _HID is not valid"
Revert commit e38f9ff63e ("ACPI: scan: Do not add device IDs from _CID
if _HID is not valid"), because it has introduced regressions on
multiple systems, even though it only has effect on clearly invalid
firmware.

Reported-by: Pierre-Louis Bossart <notifications@github.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-03-16 11:23:05 +01:00
Hans de Goede
60c7353c6b Input: soc_button_array - add support for Microsoft Surface 3 (MSHW0028) buttons
The drivers/platform/surface/surface3_button.c code is alsmost a 1:1 copy
of the soc_button_array code.

The only big difference is that it binds to an i2c_client rather then to
a platform_device. The cause of this is the ACPI resources for the MSHW0028
device containing a bogus I2cSerialBusV2 resource which causes the kernel
to instantiate an i2c_client for it instead of a platform_device.

Add "MSHW0028" to the ignore_serial_bus_ids[] list in drivers/apci/scan.c,
so that a platform_device will be instantiated and add support for
the MSHW0028 HID to soc_button_array.

This fully replaces surface3_button, which will be removed in a separate
commit (since it binds to the now no longer created i2c_client it no
longer does anyyhing after this commit).

Note the MSHW0028 id is used by Microsoft to describe the tablet buttons on
both the Surface 3 and the Surface 3 Pro and the actual API/implementation
for the Surface 3 Pro is quite different. The changes in this commit should
not impact the separate surfacepro3_button driver:

1. Because of the bogus I2cSerialBusV2 resource problem that driver binds
   to the acpi_device itself, so instantiating a platform_device instead of
   an i2c_client does not matter.

2. The soc_button_array driver will not bind to the MSHW0028 device on
   the Surface 3 Pro, because it has no GPIO resources.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20220224110241.9613-2-hdegoede@redhat.com
2022-03-02 12:31:10 +01:00
Rafael J. Wysocki
ad2f3b08d1 ACPI: scan: Use ida_alloc() instead of ida_simple_get()
As recommended in include/linux/idr.h, use ida_alloc() instead of
ida_simple_get() for creating unique device object names and for
symmetry replace ida_simple_remove() with ida_free() (and fix up
the related overly long code line while at it).

Also drop the ACPI_MAX_DEVICE_INSTANCES limit that is not necessary
any more and may not be sufficient for future platforms.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2022-02-18 20:16:34 +01:00
Lucas Tanure
d9c01c530c ACPI / scan: Create platform device for CS35L41
The ACPI device with CSC3551 or CLSA0100 are sound cards
with multiple instances of CS35L41 connected by I2C or SPI
to the main CPU.

We add an ID to the ignore_serial_bus_ids list to enumerate
all I2C or SPI devices correctly.

The same IDs are also added into serial-multi-instantiate
so that the driver can correctly enumerate the ACPI.

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220121172431.6876-10-sbinding@opensource.cirrus.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-02-02 18:12:41 +01:00
Lucas Tanure
5e63b2ea3d platform/x86: i2c-multi-instantiate: Rename it for a generic serial driver name
Rename I2C multi instantiate driver to serial-multi-instantiate for
upcoming addition of SPI support

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220121172431.6876-6-sbinding@opensource.cirrus.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-02-02 18:10:02 +01:00
Linus Torvalds
6a8d7fbf1c More ACPI updates for 5.17-rc1
- Add support for the the Platform Firmware Runtime Update and
    Telemetry (PFRUT) interface based on ACPI to allow certain pieces
    of the platform firmware to be updated without restarting the
    system and to provide a mechanism for collecting platform firmware
    telemetry data (Chen Yu, Dan Carpenter, Yang Yingliang).
 
  - Ignore E820 reservations covering PCI host bridge windows on
    sufficiently recent x86 systems to avoid issues with allocating
    PCI BARs on systems where the E820 reservations cover the entire
    PCI host bridge memory window returned by the _CRS object in the
    system's ACPI tables (Hans de Goede).
 
  - Fix and clean up acpi_scan_init() (Rafael Wysocki).
 
  - Add more sanity checking to ACPI SPCR tables parsing (Mark
    Langsdorf).
 
  - Fix up ACPI APD (AMD Soc) driver initialization (Jiasheng Jiang).
 
  - Drop unnecessary "static" from the ACPI PCC address space handling
    driver added recently (kernel test robot).
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Merge tag 'acpi-5.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "The most significant item here is the Platform Firmware Runtime Update
  and Telemetry (PFRUT) support designed to allow certain pieces of the
  platform firmware to be updated on the fly, among other things.

  Also important is the e820 handling change on x86 that should work
  around PCI BAR allocation issues on some systems shipping since 2019.

  The rest is just a handful of assorted fixes and cleanups on top of
  the ACPI material merged previously.

  Specifics:

   - Add support for the the Platform Firmware Runtime Update and
     Telemetry (PFRUT) interface based on ACPI to allow certain pieces
     of the platform firmware to be updated without restarting the
     system and to provide a mechanism for collecting platform firmware
     telemetry data (Chen Yu, Dan Carpenter, Yang Yingliang).

   - Ignore E820 reservations covering PCI host bridge windows on
     sufficiently recent x86 systems to avoid issues with allocating PCI
     BARs on systems where the E820 reservations cover the entire PCI
     host bridge memory window returned by the _CRS object in the
     system's ACPI tables (Hans de Goede).

   - Fix and clean up acpi_scan_init() (Rafael Wysocki).

   - Add more sanity checking to ACPI SPCR tables parsing (Mark
     Langsdorf).

   - Fix up ACPI APD (AMD Soc) driver initialization (Jiasheng Jiang).

   - Drop unnecessary "static" from the ACPI PCC address space handling
     driver added recently (kernel test robot)"

* tag 'acpi-5.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: PCC: pcc_ctx can be static
  ACPI: scan: Rename label in acpi_scan_init()
  ACPI: scan: Simplify initialization of power and sleep buttons
  ACPI: scan: Change acpi_scan_init() return value type to void
  ACPI: SPCR: check if table->serial_port.access_width is too wide
  ACPI: APD: Check for NULL pointer after calling devm_ioremap()
  x86/PCI: Ignore E820 reservations for bridge windows on newer systems
  ACPI: pfr_telemetry: Fix info leak in pfrt_log_ioctl()
  ACPI: pfr_update: Fix return value check in pfru_write()
  ACPI: tools: Introduce utility for firmware updates/telemetry
  ACPI: Introduce Platform Firmware Runtime Telemetry driver
  ACPI: Introduce Platform Firmware Runtime Update device driver
  efi: Introduce EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER and corresponding structures
2022-01-18 08:51:51 +02:00
Linus Torvalds
57ea81971b USB/Thunderbolt changes for 5.17-rc1
Here is the big set of USB and Thunderbolt driver changes for 5.17-rc1.
 
 Nothing major in here, just lots of little updates and cleanups.  These
 include:
 	- some USB header fixes picked from Ingo's header-splitup work
 	- more USB4/Thunderbolt hardware support added
 	- USB gadget driver updates and additions
 	- USB typec additions (includes some acpi changes, which were
 	  acked by the ACPI maintainer)
 	- core USB fixes as found by syzbot that were too late for
 	  5.16-final
 	- USB dwc3 driver updates
 	- USB dwc2 driver updates
 	- platform_get_irq() conversions of some USB drivers
 	- other minor USB driver updates and additions
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB and Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver changes for
  5.17-rc1.

  Nothing major in here, just lots of little updates and cleanups. These
  include:

   - some USB header fixes picked from Ingo's header-splitup work

   - more USB4/Thunderbolt hardware support added

   - USB gadget driver updates and additions

   - USB typec additions (includes some acpi changes, which were acked
     by the ACPI maintainer)

   - core USB fixes as found by syzbot that were too late for 5.16-final

   - USB dwc3 driver updates

   - USB dwc2 driver updates

   - platform_get_irq() conversions of some USB drivers

   - other minor USB driver updates and additions

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

* tag 'usb-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (111 commits)
  docs: ABI: fixed formatting in configfs-usb-gadget-uac2
  usb: gadget: u_audio: Subdevice 0 for capture ctls
  usb: gadget: u_audio: fix calculations for small bInterval
  usb: dwc2: gadget: initialize max_speed from params
  usb: dwc2: do not gate off the hardware if it does not support clock gating
  usb: dwc3: qcom: Fix NULL vs IS_ERR checking in dwc3_qcom_probe
  headers/deps: USB: Optimize <linux/usb/ch9.h> dependencies, remove <linux/device.h>
  USB: common: debug: add needed kernel.h include
  headers/prep: Fix non-standard header section: drivers/usb/host/ohci-tmio.c
  headers/prep: Fix non-standard header section: drivers/usb/cdns3/core.h
  headers/prep: usb: gadget: Fix namespace collision
  USB: core: Fix bug in resuming hub's handling of wakeup requests
  USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status
  usb: dwc3: dwc3-qcom: Add missing platform_device_put() in dwc3_qcom_acpi_register_core
  usb: gadget: clear related members when goto fail
  usb: gadget: don't release an existing dev->buf
  usb: dwc2: Simplify a bitmap declaration
  usb: Remove usb_for_each_port()
  usb: typec: port-mapper: Convert to the component framework
  usb: Link the ports to the connectors they are attached to
  ...
2022-01-12 11:27:57 -08:00
Rafael J. Wysocki
c96f195dee ACPI: scan: Rename label in acpi_scan_init()
Rename the "out" label in acpi_scan_init() to "unlock", which is
a better match for its purpose, and fix up its alignment.

No functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2022-01-12 15:58:49 +01:00
Rafael J. Wysocki
681e7187ae ACPI: scan: Simplify initialization of power and sleep buttons
It should be perfectly fine to use ACPI if the "fixed" power or sleep
buttons cannot be initialized.  Moreover, running acpi_bus_scan()
successfully on ACPI_ROOT_OBJECT generally causes many devices to
be enumerated and probed, possibly including the entire PCI bus, so
unregistering acpi_root if the registration of the "fixed" buttons
fails is rather unhelpful.

For this reason, do not fail acpi_scan_init() when
acpi_bus_scan_fixed() fails and turn the latter into a void function.

While at it, drop the outdated and misleading comment from
acpi_bus_scan_fixed().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2022-01-12 15:58:49 +01:00
Rafael J. Wysocki
b6c55b162b ACPI: scan: Change acpi_scan_init() return value type to void
The only caller of acpi_scan_init(), acpi_init(), doesn't check its
return value, so turn it into a void function.

This avoids complaints from the Smatch static checker that the
function should return a negative error code when it fails, which
is not really a problem in this particular case.

No intentional functional impact.

Link: https://lore.kernel.org/linux-acpi/20220106082317.GA9123@kili/
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2022-01-12 15:58:49 +01:00
Linus Torvalds
bca21755b9 ACPI updates for 5.17-rc1
- Update ACPICA code in the kernel to the 20211217 upstream release
    including the following changes:
 
    * iASL/Disassembler: Additional support for NHLT table (Bob Moore).
    * Change a return_ACPI_STATUS (AE_BAD_PARAMETER) (Bob Moore).
    * Fix a couple of warnings under MSVC (Bob Moore).
    * iASL: Add TDEL table to both compiler/disassembler (Bob Moore).
    * iASL/NHLT table: "Specific Data" field support (Bob Moore).
    * Use original data_table_region pointer for accesses (Jessica
      Clarke).
    * Use original pointer for virtual origin tables (Jessica Clarke).
    * Macros: Remove ACPI_PHYSADDR_TO_PTR (Jessica Clarke).
    * Avoid subobject buffer overflow when validating RSDP signature
      (Jessica Clarke).
    * iASL: Add suppport for AGDI table (Ilkka Koskinen).
    * Hardware: Do not flush CPU cache when entering S4 and S5 (Kirill
      A. Shutemov).
    * Expand the ACPI_ACCESS_ definitions (Mark Langsdorf).
    * Utilities: Avoid deleting the same object twice in a row (Rafael
      Wysocki).
    * Executer: Fix REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R()
      (Rafael Wysocki).
    * Fix AEST Processor generic resource substructure data field byte
      length (Shuuichirou Ishii).
    * Fix wrong interpretation of PCC address (Sudeep Holla).
    * Add support for PCC Opregion special context data (Sudeep Holla).
 
  - Implement OperationRegion handler for PCC Type 3 subtype (Sudeep
    Holla).
 
  - Introduce acpi_fetch_acpi_dev() as a replacement for
    acpi_bus_get_device() and use it in the ACPI subsystem (Rafael
    Wysocki).
 
  - Avoid using _CID for device enumaration if _HID is missing or
    invalid (Rafael Wysocki).
 
  - Rework quirk handling during ACPI device enumeration and add some
    new quirks for known broken platforms (Hans de Goede).
 
  - Avoid unnecessary or redundant CPU cache flushing during system
    PM transitions (Kirill A. Shutemov).
 
  - Add PM debug messages related to power resources (Rafael Wysocki).
 
  - Fix kernel-doc comment in the PCI host bridge ACPI driver (Yang Li).
 
  - Rework flushing of EC work while suspended to idle and clean up
    the handling of events in the ACPI EC driver (Rafael Wysocki).
 
  - Prohibit ec_sys module parameter write_support from being used
    when the system is locked down (Hans de Goede).
 
  - Make the ACPI processor thermal driver use cpufreq_cpu_get() to
    check for presence of cpufreq policy (Manfred Spraul).
 
  - Avoid unnecessary CPU cache flushing in the ACPI processor idle
    driver (Kirill A. Shutemov).
 
  - Replace kernel.h with the necessary inclusions in the ACPI
    processor driver (Andy Shevchenko).
 
  - Use swap() instead of open coding it in the ACPI processor idle
    driver (Guo Zhengkui).
 
  - Fix the handling of defective LPAT in the ACPI xpower PMIC driver
    and clean up some definitions of PMIC data structures (Hans de
    Goede).
 
  - Fix outdated comment in the ACPI DPTF driver (Sumeet Pawnikar).
 
  - Add AEST to the list of known ACPI table signatures (Shuuichirou
    Ishii).
 
  - Make ACPI NUMA code take hotpluggable memblocks into account when
    CONFIG_MEMORY_HOTPLUG is not set (Vitaly Kuznetsov).
 
  - Use default_groups in kobj_type in the ACPI sysfs code (Greg
    Kroah-Hartman).
 
  - Rearrange _CPC structure documentation (Andy Shevchenko).
 
  - Drop an always true check from the ACPI thermal driver (Adam
    Borowski).
 
  - Add new "not charging" quirk for Lenovo ThinkPads to the ACPI
    battery driver (Thomas Weißschuh).
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Merge tag 'acpi-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These are usual ACPICA code updates (although there are more of them
  than in the last few releases), a noticeable EC driver update (which
  mostly consists of cleanups, though), the device enumeration quirks
  handling rework from Hans, some updates eliminating unnecessary CPU
  cache flushing in some places (processor idle and system-wide PM code)
  and a bunch of assorted cleanups and fixes.

  Specifics:

   - Update ACPICA code in the kernel to the 20211217 upstream release
     including the following changes:

      - iASL/Disassembler: Additional support for NHLT table (Bob
        Moore).
      - Change a return_ACPI_STATUS (AE_BAD_PARAMETER) (Bob Moore).
      - Fix a couple of warnings under MSVC (Bob Moore).
      - iASL: Add TDEL table to both compiler/disassembler (Bob Moore).
      - iASL/NHLT table: "Specific Data" field support (Bob Moore).
      - Use original data_table_region pointer for accesses (Jessica
        Clarke).
      - Use original pointer for virtual origin tables (Jessica Clarke).
      - Macros: Remove ACPI_PHYSADDR_TO_PTR (Jessica Clarke).
      - Avoid subobject buffer overflow when validating RSDP signature
        (Jessica Clarke).
      - iASL: Add suppport for AGDI table (Ilkka Koskinen).
      - Hardware: Do not flush CPU cache when entering S4 and S5 (Kirill
        A. Shutemov).
      - Expand the ACPI_ACCESS_ definitions (Mark Langsdorf).
      - Utilities: Avoid deleting the same object twice in a row (Rafael
        Wysocki).
      - Executer: Fix REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R()
        (Rafael Wysocki).
      - Fix AEST Processor generic resource substructure data field byte
        length (Shuuichirou Ishii).
      - Fix wrong interpretation of PCC address (Sudeep Holla).
      - Add support for PCC Opregion special context data (Sudeep
        Holla).

   - Implement OperationRegion handler for PCC Type 3 subtype (Sudeep
     Holla).

   - Introduce acpi_fetch_acpi_dev() as a replacement for
     acpi_bus_get_device() and use it in the ACPI subsystem (Rafael
     Wysocki).

   - Avoid using _CID for device enumaration if _HID is missing or
     invalid (Rafael Wysocki).

   - Rework quirk handling during ACPI device enumeration and add some
     new quirks for known broken platforms (Hans de Goede).

   - Avoid unnecessary or redundant CPU cache flushing during system PM
     transitions (Kirill A. Shutemov).

   - Add PM debug messages related to power resources (Rafael Wysocki).

   - Fix kernel-doc comment in the PCI host bridge ACPI driver (Yang
     Li).

   - Rework flushing of EC work while suspended to idle and clean up the
     handling of events in the ACPI EC driver (Rafael Wysocki).

   - Prohibit ec_sys module parameter write_support from being used when
     the system is locked down (Hans de Goede).

   - Make the ACPI processor thermal driver use cpufreq_cpu_get() to
     check for presence of cpufreq policy (Manfred Spraul).

   - Avoid unnecessary CPU cache flushing in the ACPI processor idle
     driver (Kirill A. Shutemov).

   - Replace kernel.h with the necessary inclusions in the ACPI
     processor driver (Andy Shevchenko).

   - Use swap() instead of open coding it in the ACPI processor idle
     driver (Guo Zhengkui).

   - Fix the handling of defective LPAT in the ACPI xpower PMIC driver
     and clean up some definitions of PMIC data structures (Hans de
     Goede).

   - Fix outdated comment in the ACPI DPTF driver (Sumeet Pawnikar).

   - Add AEST to the list of known ACPI table signatures (Shuuichirou
     Ishii).

   - Make ACPI NUMA code take hotpluggable memblocks into account when
     CONFIG_MEMORY_HOTPLUG is not set (Vitaly Kuznetsov).

   - Use default_groups in kobj_type in the ACPI sysfs code (Greg
     Kroah-Hartman).

   - Rearrange _CPC structure documentation (Andy Shevchenko).

   - Drop an always true check from the ACPI thermal driver (Adam
     Borowski).

   - Add new "not charging" quirk for Lenovo ThinkPads to the ACPI
     battery driver (Thomas Weißschuh)"

* tag 'acpi-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
  ACPI: PCC: Implement OperationRegion handler for the PCC Type 3 subtype
  ACPI / x86: Skip AC and battery devices on x86 Android tablets with broken DSDTs
  ACPI / x86: Introduce an acpi_quirk_skip_acpi_ac_and_battery() helper
  ACPI: processor: thermal: avoid cpufreq_get_policy()
  serdev: Do not instantiate serdevs on boards with known bogus DSDT entries
  i2c: acpi: Do not instantiate I2C-clients on boards with known bogus DSDT entries
  ACPI / x86: Add acpi_quirk_skip_[i2c_client|serdev]_enumeration() helpers
  ACPI: scan: Create platform device for BCM4752 and LNV4752 ACPI nodes
  PCI/ACPI: Fix acpi_pci_osc_control_set() kernel-doc comment
  ACPI: battery: Add the ThinkPad "Not Charging" quirk
  ACPI: sysfs: use default_groups in kobj_type
  ACPICA: Update version to 20211217
  ACPICA: iASL/NHLT table: "Specific Data" field support
  ACPICA: iASL: Add suppport for AGDI table
  ACPICA: iASL: Add TDEL table to both compiler/disassembler
  ACPICA: Fixed a couple of warnings under MSVC
  ACPICA: Change a return_ACPI_STATUS (AE_BAD_PARAMETER)
  ACPICA: Hardware: Do not flush CPU cache when entering S4 and S5
  ACPICA: Add support for PCC Opregion special context data
  ACPICA: Fix wrong interpretation of PCC address
  ...
2022-01-10 20:26:56 -08:00
Hans de Goede
f85196bdd5 ACPI: scan: Create platform device for BCM4752 and LNV4752 ACPI nodes
BCM4752 and LNV4752 ACPI nodes describe a Broadcom 4752 GPS module
attached to an UART of the system.

The GPS modules talk a custom protocol which only works with a closed-
source Android gpsd daemon which knows this protocol.

The ACPI nodes also describe GPIOs to turn the GPS on/off these are
handled by the net/rfkill/rfkill-gpio.c code. This handling predates the
addition of enumeration of ACPI instantiated serdevs to the kernel and
was broken by that addition, because the ACPI scan code now no longer
instantiates platform_device-s for these nodes.

Rename the i2c_multi_instantiate_ids HID list to ignore_serial_bus_ids
and add the BCM4752 and LNV4752 HIDs, so that rfkill-gpio gets
a platform_device to bind to again; and so that a tty cdev for gpsd
gets created for these.

Fixes: e361d1f858 ("ACPI / scan: Fix enumeration for special UART devices")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-12-30 17:34:27 +01:00
Heikki Krogerus
882c982dad acpi: Store CRC-32 hash of the _PLD in struct acpi_device
Storing CRC-32 hash of the Physical Location of Device
object (_PLD) with devices that have it. The hash is stored
to a new struct acpi_device member "pld_crc".

The hash makes it easier to find devices that share a
location, as there is no need to evaluate the entire object
every time. Knowledge about devices that share a location
can be used in device drivers that need to know the
connections to other components inside a system. USB3 ports
will for example always share their location with a USB2
port.

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20211223081620.45479-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-30 12:13:03 +01:00
Rafael J. Wysocki
e3c963c498 ACPI: scan: Introduce acpi_fetch_acpi_dev()
Introduce acpi_fetch_acpi_dev() as a more reasonable replacement for
acpi_bus_get_device() and modify the code in scan.c to use it instead
of the latter.

No expected functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2021-12-17 18:45:50 +01:00
Mauro Carvalho Chehab
3a956f0b12 Signed tag for the immutable platform-drivers-x86-int3472 branch
This branch contains 5.16-rc1 + the pending ACPI/i2c, tps68570 platform_data
 and INT3472 driver patches.
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Merge tag 'platform-drivers-x86-int3472-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 into media_tree

Signed tag for the immutable platform-drivers-x86-int3472 branch

This branch contains 5.16-rc1 + the pending ACPI/i2c, tps68570 platform_data
and INT3472 driver patches.

* tag 'platform-drivers-x86-int3472-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: int3472: Deal with probe ordering issues
  platform/x86: int3472: Pass tps68470_regulator_platform_data to the tps68470-regulator MFD-cell
  platform/x86: int3472: Pass tps68470_clk_platform_data to the tps68470-regulator MFD-cell
  platform/x86: int3472: Add get_sensor_adev_and_name() helper
  platform/x86: int3472: Split into 2 drivers
  platform_data: Add linux/platform_data/tps68470.h file
  i2c: acpi: Add i2c_acpi_new_device_by_fwnode() function
  i2c: acpi: Use acpi_dev_ready_for_enumeration() helper
  ACPI: delay enumeration of devices with a _DEP pointing to an INT3472 device
2021-12-16 20:54:02 +01:00
Hans de Goede
9d9bcae47f ACPI: delay enumeration of devices with a _DEP pointing to an INT3472 device
The clk and regulator frameworks expect clk/regulator consumer-devices
to have info about the consumed clks/regulators described in the device's
fw_node.

To work around cases where this info is not present in the firmware tables,
which is often the case on x86/ACPI devices, both frameworks allow the
provider-driver to attach info about consumers to the clks/regulators
when registering these.

This causes problems with the probe ordering wrt drivers for consumers
of these clks/regulators. Since the lookups are only registered when the
provider-driver binds, trying to get these clks/regulators before then
results in a -ENOENT error for clks and a dummy regulator for regulators.

One case where we hit this issue is camera sensors such as e.g. the OV8865
sensor found on the Microsoft Surface Go. The sensor uses clks, regulators
and GPIOs provided by a TPS68470 PMIC which is described in an INT3472
ACPI device. There is special platform code handling this and setting
platform_data with the necessary consumer info on the MFD cells
instantiated for the PMIC under: drivers/platform/x86/intel/int3472.

For this to work properly the ov8865 driver must not bind to the I2C-client
for the OV8865 sensor until after the TPS68470 PMIC gpio, regulator and
clk MFD cells have all been fully setup.

The OV8865 on the Microsoft Surface Go is just one example, all X86
devices using the Intel IPU3 camera block found on recent Intel SoCs
have similar issues where there is an INT3472 HID ACPI-device, which
describes the clks and regulators, and the driver for this INT3472 device
must be fully initialized before the sensor driver (any sensor driver)
binds for things to work properly.

On these devices the ACPI nodes describing the sensors all have a _DEP
dependency on the matching INT3472 ACPI device (there is one per sensor).

This allows solving the probe-ordering problem by delaying the enumeration
(instantiation of the I2C-client in the ov8865 example) of ACPI-devices
which have a _DEP dependency on an INT3472 device.

The new acpi_dev_ready_for_enumeration() helper used for this is also
exported because for devices, which have the enumeration_by_parent flag
set, the parent-driver will do its own scan of child ACPI devices and
it will try to enumerate those during its probe(). Code doing this such
as e.g. the i2c-core-acpi.c code must call this new helper to ensure
that it too delays the enumeration until all the _DEP dependencies are
met on devices which have the new honor_deps flag set.

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211203102857.44539-2-hdegoede@redhat.com
2021-12-13 11:44:47 +01:00
Rafael J. Wysocki
e38f9ff63e ACPI: scan: Do not add device IDs from _CID if _HID is not valid
Section 6.1.2 of ACPI 6.4 explicitly requires _HID to be present for
_CID to be defined, so don't add device IDs from _CID to the device
IDs list of a device if _HID is not valid.

Link: https://uefi.org/specs/ACPI/6.4/06_Device_Configuration/Device_Configuration.html#cid-compatible-id
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2021-11-24 17:50:35 +01:00
Rafael J. Wysocki
3b2b49e6df Revert "ACPI: scan: Release PM resources blocked by unused objects"
Revert commit c10383e8dd ("ACPI: scan: Release PM resources blocked
by unused objects"), because it causes boot issues to appear on some
platforms.

Reported-by: Kyle D. Pelton <kyle.d.pelton@intel.com>
Reported-by: Saranya Gopal <saranya.gopal@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-11-17 17:05:41 +01:00
Sakari Ailus
b340c7d6f6 ACPI: scan: Obtain device's desired enumeration power state
Store a device's desired enumeration power state in struct
acpi_device_power during acpi_device object's initialisation.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-11-03 19:03:55 +01:00
Linus Torvalds
c0d6586afa ACPI updates for 5.16-rc1
- Update the ACPICA code in the kernel to upstream revision 20210930
    including the following changes:
 
    * Fix system-wide resume issue caused by evaluating control
      methods too early in the resume path (Rafael Wysocki).
 
    * Add support for Windows 2020 _OSI string (Mario Limonciello).
 
    * Add Generic Port Affinity type for SRAT (Alison Schofield).
 
    * Add disassembly support for the NHLT ACPI table (Bob Moore).
 
  - Avoid flushing caches before entering C3 type of idle states on
    AMD processors (Deepak Sharma).
 
  - Avoid enumerating CPUs that are not present and not online-capable
    according to the platform firmware (Mario Limonciello).
 
  - Add DMI-based mechanism to quirk IRQ overrides and use it for two
    platforms (Hui Wang).
 
  - Change the configuration of unused ACPI device objects to reflect
    the D3cold power state after enumerating devices (Rafael Wysocki).
 
  - Update MAINTAINERS information regarding ACPI (Rafael Wysocki).
 
  - Fix typo in ACPI Kconfig (Masanari Iid).
 
  - Use sysfs_emit() instead of snprintf() in some places (Qing Wang).
 
  - Make the association of ACPI device objects with PCI devices more
    straightforward and simplify the code doing that for all devices
    in general (Rafael Wysocki).
 
  - Use acpi_device_adr() in acpi_find_child_device() instead of
    evaluating _ADR (Rafael Wysocki).
 
  - Drop duplicate device IDs from PNP device IDs list (Krzysztof
    Kozlowski).
 
  - Allow acpi_idle_play_dead() to use C3 on AMD processors (Richard
    Gong).
 
  - Use ACPI_COMPANION() to simplify code in some drivers (Rafael
    Wysocki).
 
  - Check the states of all ACPI power resources during initialization
    to avoid dealing with power resources in unknown states (Rafael
    Wysocki).
 
  - Fix ACPI power resource issues related to sharing wakeup power
    resources (Rafael Wysocki).
 
  - Avoid registering redundant suspend_ops (Rafael Wysocki).
 
  - Report battery charging state as "full" if it appears to be over
    the design capacity (André Almeida).
 
  - Quirk GK45 mini PC to skip reading _PSR in the AC driver (Stefan
    Schaeckeler).
 
  - Mark apei_hest_parse() static (Christoph Hellwig).
 
  - Relax platform response timeout to 1 second after instructing it
    to inject an error (Shuai Xue).
 
  - Make the PRM code handle memory allocation and remapping failures
    more gracefully and drop some unnecessary blank lines from that
    code (Aubrey Li).
 
  - Fix spelling mistake in the ACPI documentation (Colin Ian King).
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Merge tag 'acpi-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to the most recent upstream
  revision, address some issues related to the ACPI power resources
  management, simplify the enumeration of PCI devices having ACPI
  companions, add new quirks, fix assorted problems, update the
  ACPI-related information in maintainers and clean up code in several
  places.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20210930
     including the following changes:

        - Fix system-wide resume issue caused by evaluating control
          methods too early in the resume path (Rafael Wysocki).

        - Add support for Windows 2020 _OSI string (Mario Limonciello).

        - Add Generic Port Affinity type for SRAT (Alison Schofield).

        - Add disassembly support for the NHLT ACPI table (Bob Moore).

   - Avoid flushing caches before entering C3 type of idle states on AMD
     processors (Deepak Sharma).

   - Avoid enumerating CPUs that are not present and not online-capable
     according to the platform firmware (Mario Limonciello).

   - Add DMI-based mechanism to quirk IRQ overrides and use it for two
     platforms (Hui Wang).

   - Change the configuration of unused ACPI device objects to reflect
     the D3cold power state after enumerating devices (Rafael Wysocki).

   - Update MAINTAINERS information regarding ACPI (Rafael Wysocki).

   - Fix typo in ACPI Kconfig (Masanari Iid).

   - Use sysfs_emit() instead of snprintf() in some places (Qing Wang).

   - Make the association of ACPI device objects with PCI devices more
     straightforward and simplify the code doing that for all devices in
     general (Rafael Wysocki).

   - Use acpi_device_adr() in acpi_find_child_device() instead of
     evaluating _ADR (Rafael Wysocki).

   - Drop duplicate device IDs from PNP device IDs list (Krzysztof
     Kozlowski).

   - Allow acpi_idle_play_dead() to use C3 on AMD processors (Richard
     Gong).

   - Use ACPI_COMPANION() to simplify code in some drivers (Rafael
     Wysocki).

   - Check the states of all ACPI power resources during initialization
     to avoid dealing with power resources in unknown states (Rafael
     Wysocki).

   - Fix ACPI power resource issues related to sharing wakeup power
     resources (Rafael Wysocki).

   - Avoid registering redundant suspend_ops (Rafael Wysocki).

   - Report battery charging state as "full" if it appears to be over
     the design capacity (André Almeida).

   - Quirk GK45 mini PC to skip reading _PSR in the AC driver (Stefan
     Schaeckeler).

   - Mark apei_hest_parse() static (Christoph Hellwig).

   - Relax platform response timeout to 1 second after instructing it to
     inject an error (Shuai Xue).

   - Make the PRM code handle memory allocation and remapping failures
     more gracefully and drop some unnecessary blank lines from that
     code (Aubrey Li).

   - Fix spelling mistake in the ACPI documentation (Colin Ian King)"

* tag 'acpi-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (36 commits)
  ACPI: glue: Use acpi_device_adr() in acpi_find_child_device()
  perf: qcom_l2_pmu: ACPI: Use ACPI_COMPANION() directly
  ACPI: APEI: mark apei_hest_parse() static
  ACPI: APEI: EINJ: Relax platform response timeout to 1 second
  gpio-amdpt: ACPI: Use the ACPI_COMPANION() macro directly
  nouveau: ACPI: Use the ACPI_COMPANION() macro directly
  ACPI: resources: Add one more Medion model in IRQ override quirk
  ACPI: AC: Quirk GK45 to skip reading _PSR
  ACPI: PM: sleep: Do not set suspend_ops unnecessarily
  ACPI: PRM: Handle memory allocation and memory remap failure
  ACPI: PRM: Remove unnecessary blank lines
  ACPI: PM: Turn off wakeup power resources on _DSW/_PSW errors
  ACPI: PM: Fix sharing of wakeup power resources
  ACPI: PM: Turn off unused wakeup power resources
  ACPI: PM: Check states of power resources during initialization
  ACPI: replace snprintf() in "show" functions with sysfs_emit()
  ACPI: LPSS: Use ACPI_COMPANION() directly
  ACPI: scan: Release PM resources blocked by unused objects
  ACPI: battery: Accept charges over the design capacity as full
  ACPICA: Update version to 20210930
  ...
2021-11-02 15:58:39 -07:00
Rafael J. Wysocki
2c59a32d12 hwmon: (acpi_power_meter) Use acpi_bus_get_acpi_device()
In read_domain_devices(), acpi_bus_get_device() is called to obtain
the ACPI device object attached to the given ACPI handle and
subsequently that object is passed to get_device() for reference
counting, but there is a window between the acpi_bus_get_device()
and get_device() calls in which the ACPI device object in question
may go away.

To address this issue, make read_domain_devices() use
acpi_bus_get_acpi_device() to reference count and return the given
ACPI device object in one go and export that function to modules.

While at it, also make read_domain_devices() and
remove_domain_devices() use acpi_dev_put() instead of calling
put_device() directly on the ACPI device objects returned by
acpi_bus_get_acpi_device().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/11871063.O9o76ZdvQC@kreacher
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-10-16 22:41:25 -07:00
Rafael J. Wysocki
c10383e8dd ACPI: scan: Release PM resources blocked by unused objects
On some systems the ACPI namespace contains device objects that are
not used in certain configurations of the system.  If they start off
in the D0 power state configuration, they will stay in it until the
system reboots, because of the lack of any mechanism possibly causing
their configuration to change.  If that happens, they may prevent
some power resources from being turned off or generally they may
prevent the platform from getting into the deepest low-power states
thus causing some energy to be wasted.

Address this issue by changing the configuration of unused ACPI
device objects to the D3cold power state one after carrying out
the ACPI-based enumeration of devices.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214091
Link: https://lore.kernel.org/linux-acpi/20211007205126.11769-1-mario.limonciello@amd.com/
Reported-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com>
2021-10-13 19:57:01 +02:00
Kari Argillander
66e0aeaa8b ACPI: scan: Remove unneeded header linux/nls.h
Code that use linux/nls.h was moved to device_sysfs.c by commit
c2efefb33a ("ACPI / scan: Move sysfs-related device code to a separate file")

Remove this include so that complier has easier times and it would be
easier to grep where nls code is used.

Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-09-07 21:12:55 +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
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
8b457d6060 Merge branches 'acpi-dptf' and 'acpi-messages'
* acpi-dptf:
  ACPI: DPTF: Add battery participant for Intel SoCs

* acpi-messages:
  ACPI: Remove the macro PREFIX "ACPI: "
  ACPI: sleep: Unify the message printing
  ACPI: sbs: Unify the message printing
  ACPI: scan: Unify the log message printing
  ACPI: sbshc: Unify the message printing
  ACPI: sysfs: Cleanup message printing
  ACPI: reboot: Unify the message printing
  ACPI: processor_throttling: Cleanup the printing messages
  ACPI: processor_perflib: Cleanup print messages
  ACPI: processor_thermal: Remove unused PREFIX for printing
  ACPI: pci_root: Unify the message printing
  ACPI: osl: Remove the duplicated PREFIX for message printing
  ACPI: nvs: Unify the message printing
  ACPI: glue: Clean up the printing messages
  ACPI: event: Use pr_*() macros to replace printk()
  ACPI: bus: Use pr_*() macros to replace printk()
  ACPI: blacklist: Unify the message printing
  ACPI: cmos_rtc: Using pr_fmt() and remove PREFIX
2021-06-29 15:50:37 +02:00
Rafael J. Wysocki
2f4edfadbc Merge branches 'acpi-pm', 'acpi-processor' and 'acpi-resources'
* acpi-pm:
  ACPI: PM: postpone bringing devices to D0 unless we need them
  ACPI: PM: Adjust behavior for field problems on AMD systems
  ACPI: PM: s2idle: Add support for new Microsoft UUID
  ACPI: PM: s2idle: Add support for multiple func mask
  ACPI: PM: s2idle: Refactor common code
  ACPI: PM: s2idle: Use correct revision id
  ACPI: power: Use dev_dbg() to print some messages
  ACPI: sleep: Fix acpi_pm_pre_suspend() kernel-doc
  ACPI: power: Rework turning off unused power resources
  ACPI: power: Save the last known state of each power resource
  ACPI: power: Use u8 as the power resource state data type
  ACPI: PM / fan: Put fan device IDs into separate header file
  ACPI: PM: s2idle: Add missing LPS0 functions for AMD

* acpi-processor:
  ACPI: processor_throttling: Fix several coding style issues
  ACPI: processor_throttling: Remove redundant initialization of 'obj'
  ACPI: processor idle: Fix up C-state latency if not ordered

* acpi-resources:
  ACPI: resources: Add checks for ACPI IRQ override
2021-06-29 15:47:29 +02:00
Rafael J. Wysocki
dfef7710d7 Merge branches 'acpi-bus', 'acpi-scan' and 'acpi-tables'
* acpi-bus:
  ACPI: Remove redundant clearing of context->ret.pointer from acpi_run_osc()

* acpi-scan:
  ACPI: scan: Simplify acpi_table_events_fn()
  ACPI: scan: Fix race related to dropping dependencies
  ACPI: scan: Reorganize acpi_device_add()
  ACPI: scan: Fix device object rescan in acpi_scan_clear_dep()
  ACPI: scan: Make acpi_walk_dep_device_list()
  ACPI: scan: Rearrange acpi_dev_get_first_consumer_dev_cb()
  ACPI: scan: Define acpi_bus_put_acpi_device() as static inline
  ACPI: scan: initialize local variable to avoid garbage being returned
  ACPI: scan: Add function to fetch dependent of ACPI device
  ACPI: scan: Extend acpi_walk_dep_device_list()
  ACPI: scan: Rearrange dep_unmet initialization

* acpi-tables:
  ACPI: tables: Add custom DSDT file as makefile prerequisite
  ACPI: bgrt: Use sysfs_emit
  ACPI: bgrt: Fix CFI violation
  ACPI: tables: FPDT: Add missing acpi_put_table() in acpi_init_fpdt()
  ACPI: tables: PPTT: Populate cache-id if provided by firmware
2021-06-29 15:46:52 +02:00
Jean-Philippe Brucker
3cf485540e ACPI: Add driver for the VIOT table
The ACPI Virtual I/O Translation Table describes topology of
para-virtual platforms, similarly to vendor tables DMAR, IVRS and IORT.
For now it describes the relation between virtio-iommu and the endpoints
it manages.

Three steps are needed to configure DMA of endpoints:

(1) acpi_viot_init(): parse the VIOT table, find or create the fwnode
    associated to each vIOMMU device. This needs to happen after
    acpi_scan_init(), because it relies on the struct device and their
    fwnode to be available.

(2) When probing the vIOMMU device, the driver registers its IOMMU ops
    within the IOMMU subsystem. This step doesn't require any
    intervention from the VIOT driver.

(3) viot_iommu_configure(): before binding the endpoint to a driver,
    find the associated IOMMU ops. Register them, along with the
    endpoint ID, into the device's iommu_fwspec.

If step (3) happens before step (2), it is deferred until the IOMMU is
initialized, then retried.

Tested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20210618152059.1194210-4-jean-philippe@linaro.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-25 15:02:43 +02:00
Jean-Philippe Brucker
11a8c5e3a9 ACPI: Move IOMMU setup code out of IORT
Extract the code that sets up the IOMMU infrastructure from IORT, since
it can be reused by VIOT. Move it one level up into a new
acpi_iommu_configure_id() function, which calls the IORT parsing
function which in turn calls the acpi_iommu_fwspec_init() helper.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20210618152059.1194210-3-jean-philippe@linaro.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2021-06-25 15:02:43 +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