1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Commit graph

19 commits

Author SHA1 Message Date
Shyam Sundar S K
236f7d8034 platform/x86/amd/pmc: Modify SMU message port for latest AMD platform
The latest platforms use a different SMU message port(0x938) from the one
currently being used (0x538). Make code changes to adapt to this new
information.

Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231228102104.1785383-7-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2024-01-02 13:40:31 +01:00
Shyam Sundar S K
d33e992ec8 platform/x86/amd/pmc: Add 1Ah family series to STB support list
AMD newer platforms, (AMDI000A or family 1Ah series) also supports the STB
functionality. Add this to amd_pmc_is_stb_supported().

Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231228102104.1785383-6-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2024-01-02 13:40:29 +01:00
Shyam Sundar S K
9ae57d8860 platform/x86/amd/pmc: Add idlemask support for 1Ah family
Idlemask is an indication of each IP block current state (i.e. whether it
is running or idle) during s2idle transistion. The newer 1Ah family
supports this feature, add it to the support list.

Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231228102104.1785383-5-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2024-01-02 13:40:27 +01:00
Shyam Sundar S K
13313c1352 platform/x86/amd/pmc: call amd_pmc_get_ip_info() during driver probe
In the current code, amd_pmc_get_ip_info() is being called from
amd_pmc_s2d_init() and that code block gets enabled only when the STB is
being enabled.

But the information from amd_pmc_get_ip_info() will be required outside of
STB usecase. Hence move this call into driver probe sequence.

Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231228102104.1785383-4-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2024-01-02 13:40:24 +01:00
Shyam Sundar S K
d8fb50fe6c platform/x86/amd/pmc: Add VPE information for AMDI000A platform
Latest AMD SoCs has VPE (Video Processing Engine) IP block and the
statistics related to this IP can be obtained as a part of metrics table
information that the PMFW propogates. Add this support for 1Ah family
series.

Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231228102104.1785383-3-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2024-01-02 13:40:22 +01:00
Shyam Sundar S K
9efa2a04ce platform/x86/amd/pmc: Send OS_HINT command for AMDI000A platform
To initiate the HW deep state transistion the OS_HINT command has to be
sent the PMFW. Add this support to the platforms that has AMDI000A
support.

Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231228102104.1785383-2-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2024-01-02 13:40:13 +01:00
Mario Limonciello
a55bdad5df
platform/x86/amd/pmc: Disable keyboard wakeup on AMD Framework 13
The Laptop 13 (AMD Ryzen 7040Series) BIOS 03.03 has a workaround
included in the EC firmware that will cause the EC to emit a "spurious"
keypress during the resume from s0i3 [1].

This series of keypress events can be observed in the kernel log on
resume.

```
atkbd serio0: Unknown key pressed (translated set 2, code 0x6b on isa0060/serio0).
atkbd serio0: Use 'setkeycodes 6b <keycode>' to make it known.
atkbd serio0: Unknown key released (translated set 2, code 0x6b on isa0060/serio0).
atkbd serio0: Use 'setkeycodes 6b <keycode>' to make it known.
```

In some user flows this is harmless, but if a user has specifically
suspended the laptop and then closed the lid it will cause the laptop
to wakeup. The laptop wakes up because the ACPI SCI triggers when
the lid is closed and when the kernel sees that IRQ1 is "also" active.
The kernel can't distinguish from a real keyboard keypress and wakes the
system.

Add the model into the list of quirks to disable keyboard wakeup source.
This is intentionally only matching the production BIOS version in hopes
that a newer EC firmware included in a newer BIOS can avoid this behavior.

Cc: Kieran Levin <ktl@framework.net>
Link: https://github.com/FrameworkComputer/EmbeddedController/blob/lotus-zephyr/zephyr/program/lotus/azalea/src/power_sequence.c#L313 [1]
Link: https://community.frame.work/t/amd-wont-sleep-properly/41755
Link: https://community.frame.work/t/tracking-framework-amd-ryzen-7040-series-lid-wakeup-behavior-feedback/39128
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20231212045006.97581-5-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-12-18 15:08:19 +02:00
Mario Limonciello
b614a4bd73
platform/x86/amd/pmc: Move keyboard wakeup disablement detection to pmc-quirks
Other platforms may need to disable keyboard wakeup besides Cezanne,
so move the detection into amd_pmc_quirks_init() where it may be applied
to multiple platforms.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20231212045006.97581-4-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-12-18 15:08:17 +02:00
Mario Limonciello
2d53c0ab61
platform/x86/amd/pmc: Only run IRQ1 firmware version check on Cezanne
amd_pmc_wa_czn_irq1() only runs on Cezanne platforms currently but
may be extended to other platforms in the future.  Rename the function
and only check platform firmware version when it's called for a Cezanne
based platform.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20231212045006.97581-3-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-12-18 15:08:16 +02:00
Mario Limonciello
85980669a8
platform/x86/amd/pmc: Move platform defines to header
The platform defines will be used by the quirks in the future,
so move them to the common header to allow use by both source
files.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20231212045006.97581-2-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-12-18 15:08:13 +02:00
Shyam Sundar S K
c6ea14d557
platform/x86/amd/pmc: adjust getting DRAM size behavior
amd_pmc_get_dram_size() is used to get the DRAM size information. But
in the current code, mailbox command to get the DRAM size info is sent
based on the values of dev->major and dev->minor.

But dev->major and dev->minor will have either junk or zero assigned to
them until at least once a call to amd_pmc_get_smu_version() is made
which ideally populates dev->major and dev->minor.

However, adding a amd_pmc_get_smu_version() call to
amd_pmc_get_dram_size() has a downside of elevating the boot times.

After talking to the PMFW team, it's understood that the "get dram
size" mbox command would only be supported on specific platforms (like
Mendocino) and not all. So, adjust getting DRAM size behavior such
that,

- if running on Rembrandt or Mendocino and the underlying PMFW knows
how to execute the "get dram size" command it shall give the custom
dram size.

- if the underlying FW does not report the dram size, we just proceed
further and assign the default dram size.

The simplest way to address this is to remove amd_pmc_get_dram_size()
function and directly call the "get dram size" command in the
amd_pmc_s2d_init().

Reported-by: Mark Hasemeyer <markhas@chromium.org>
Fixes: be8325fb3d ("platform/x86/amd: pmc: Get STB DRAM size from PMFW")
Cc: stable@vger.kernel.org
Suggested-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20231116170121.3372222-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-11-17 12:04:01 +02:00
Linus Torvalds
59fff63cc2 platform-drivers-x86 for v6.7-1
Highlights:
  - asus-wmi:		Support for screenpad and solve brightness key
 			press duplication
  - int3472:		Eliminate the last use of deprecated GPIO functions
  - mlxbf-pmc:		New HW support
  - msi-ec:		Support new EC configurations
  - thinkpad_acpi:	Support reading aux MAC address during passthrough
  - wmi: 		Fixes & improvements
  - x86-android-tablets:	Detection fix and avoid use of GPIO private APIs
  - Debug & metrics interface improvements
  - Miscellaneous cleanups / fixes / improvements
 
 The following is an automated shortlog grouped by driver:
 
 acer-wmi:
  -  Remove void function return
 
 amd/hsmp:
  -  add support for metrics tbl
  -  create plat specific struct
  -  Fix iomem handling
  -  improve the error log
 
 amd/pmc:
  -  Add dump_custom_stb module parameter
  -  Add PMFW command id to support S2D force flush
  -  Handle overflow cases where the num_samples range is higher
  -  Use flex array when calling amd_pmc_stb_debugfs_open_v2()
 
 asus-wireless:
  -  Replace open coded acpi_match_acpi_device()
 
 asus-wmi:
  -  add support for ASUS screenpad
  -  Do not report brightness up/down keys when also reported by acpi_video
 
 gpiolib: acpi:
  -  Add a ignore interrupt quirk for Peaq C1010
  -  Check if a GPIO is listed in ignore_interrupt earlier
 
 hp-bioscfg:
  -  Annotate struct bios_args with __counted_by
 
 inspur-platform-profile:
  -  Add platform profile support
 
 int3472:
  -  Add new skl_int3472_fill_gpiod_lookup() helper
  -  Add new skl_int3472_gpiod_get_from_temp_lookup() helper
  -  Stop using gpiod_toggle_active_low()
  -  Switch to devm_get_gpiod()
 
 intel: bytcrc_pwrsrc:
  -  Convert to platform remove callback returning void
 
 intel/ifs:
  -  Add new CPU support
  -  Add new error code
  -  ARRAY BIST for Sierra Forest
  -  Gen2 scan image loading
  -  Gen2 Scan test support
  -  Metadata validation for start_chunk
  -  Refactor image loading code
  -  Store IFS generation number
  -  Validate image size
 
 intel_speed_select_if:
  -  Remove hardcoded map size
  -  Use devm_ioremap_resource
 
 intel/tpmi:
  -  Add debugfs support for read/write blocked
  -  Add defines to get version information
 
 intel-uncore-freq:
  -  Ignore minor version change
 
 ISST:
  -  Allow level 0 to be not present
  -  Ignore minor version change
  -  Use fuse enabled mask instead of allowed levels
 
 mellanox:
  -  Fix misspelling error in routine name
  -  Rename some init()/exit() functions for consistent naming
 
 mlxbf-bootctl:
  -  Convert to platform remove callback returning void
 
 mlxbf-pmc:
  -  Add support for BlueField-3
 
 mlxbf-tmfifo:
  -  Convert to platform remove callback returning void
 
 mlx-Convert to platform remove callback returning void:
  - mlx-Convert to platform remove callback returning void
 
 mlxreg-hotplug:
  -  Convert to platform remove callback returning void
 
 mlxreg-io:
  -  Convert to platform remove callback returning void
 
 mlxreg-lc:
  -  Convert to platform remove callback returning void
 
 msi-ec:
  -  Add more EC configs
  -  rename fn_super_swap
 
 nvsw-sn2201:
  -  Convert to platform remove callback returning void
 
 sel3350-Convert to platform remove callback returning void:
  - sel3350-Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt-apollolake:
  -  Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt:
  -  Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt-elkhartlake:
  -  Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt-f7188x:
  -  Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt:
  -  Simplify simatic_ipc_batt_remove()
 
 surface: acpi-notify:
  -  Convert to platform remove callback returning void
 
 surface: aggregator:
  -  Annotate struct ssam_event with __counted_by
 
 surface: aggregator-cdev:
  -  Convert to platform remove callback returning void
 
 surface: aggregator-registry:
  -  Convert to platform remove callback returning void
 
 surface: dtx:
  -  Convert to platform remove callback returning void
 
 surface: gpe:
  -  Convert to platform remove callback returning void
 
 surface: hotplug:
  -  Convert to platform remove callback returning void
 
 surface: surface3-wmi:
  -  Convert to platform remove callback returning void
 
 think-lmi:
  -  Add bulk save feature
  -  Replace kstrdup() + strreplace() with kstrdup_and_replace()
  -  Use strreplace() to replace a character by nul
 
 thinkpad_acpi:
  -  Add battery quirk for Thinkpad X120e
  -  replace deprecated strncpy with memcpy
  -  sysfs interface to auxmac
 
 tools/power/x86/intel-speed-select:
  -  Display error for core-power support
  -  Increase max CPUs in one request
  -  No TRL for non compute domains
  -  Sanitize integer arguments
  -  turbo-mode enable disable swapped
  -  Update help for TRL
  -  Use cgroup isolate for CPU 0
  -  v1.18 release
 
 wmi:
  -  Decouple probe deferring from wmi_block_list
  -  Decouple WMI device removal from wmi_block_list
  -  Fix opening of char device
  -  Fix probe failure when failing to register WMI devices
  -  Fix refcounting of WMI devices in legacy functions
 
 x86-android-tablets:
  -  Add a comment about x86_android_tablet_get_gpiod()
  -  Create a platform_device from module_init()
  -  Drop "linux,power-supply-name" from lenovo_yt3_bq25892_0_props[]
  -  Fix Lenovo Yoga Tablet 2 830F/L vs 1050F/L detection
  -  Remove invalid_aei_gpiochip from Peaq C1010
  -  Remove invalid_aei_gpiochip support
  -  Stop using gpiolib private APIs
  -  Use platform-device as gpio-keys parent
 
 xo15-ebook:
  -  Replace open coded acpi_match_acpi_device()
 
 Merges:
  -  Merge branch 'pdx86/platform-drivers-x86-int3472' into review-ilpo
  -  Merge branch 'pdx86/platform-drivers-x86-mellanox-init' into review-ilpo
  -  Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-ilpo
  -  Merge remote-tracking branch 'pdx86/platform-drivers-x86-android-tablets' into review-hans
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQSCSUwRdwTNL2MhaBlZrE9hU+XOMQUCZT+lBwAKCRBZrE9hU+XO
 Mck0AQCFU7dYLCF4d1CXtHf1eZhSXLpYdhcO+C08JGGoM+MqSgD+Jyb9KJHk4pxE
 FvKG51I9neyAne9lvNrLodHRzxCYgAo=
 =duM8
 -----END PGP SIGNATURE-----

Merge tag 'platform-drivers-x86-v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Ilpo Järvinen:

 - asus-wmi: Support for screenpad and solve brightness key press
   duplication

 - int3472: Eliminate the last use of deprecated GPIO functions

 - mlxbf-pmc: New HW support

 - msi-ec: Support new EC configurations

 - thinkpad_acpi: Support reading aux MAC address during passthrough

 - wmi: Fixes & improvements

 - x86-android-tablets: Detection fix and avoid use of GPIO private APIs

 - Debug & metrics interface improvements

 - Miscellaneous cleanups / fixes / improvements

* tag 'platform-drivers-x86-v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (80 commits)
  platform/x86: inspur-platform-profile: Add platform profile support
  platform/x86: thinkpad_acpi: Add battery quirk for Thinkpad X120e
  platform/x86: wmi: Decouple WMI device removal from wmi_block_list
  platform/x86: wmi: Fix opening of char device
  platform/x86: wmi: Fix probe failure when failing to register WMI devices
  platform/x86: wmi: Fix refcounting of WMI devices in legacy functions
  platform/x86: wmi: Decouple probe deferring from wmi_block_list
  platform/x86/amd/hsmp: Fix iomem handling
  platform/x86: asus-wmi: Do not report brightness up/down keys when also reported by acpi_video
  platform/x86: thinkpad_acpi: replace deprecated strncpy with memcpy
  tools/power/x86/intel-speed-select: v1.18 release
  tools/power/x86/intel-speed-select: Use cgroup isolate for CPU 0
  tools/power/x86/intel-speed-select: Increase max CPUs in one request
  tools/power/x86/intel-speed-select: Display error for core-power support
  tools/power/x86/intel-speed-select: No TRL for non compute domains
  tools/power/x86/intel-speed-select: turbo-mode enable disable swapped
  tools/power/x86/intel-speed-select: Update help for TRL
  tools/power/x86/intel-speed-select: Sanitize integer arguments
  platform/x86: acer-wmi: Remove void function return
  platform/x86/amd/pmc: Add dump_custom_stb module parameter
  ...
2023-10-31 17:53:00 -10:00
David Lazar
3bde7ec13c platform/x86: Add s2idle quirk for more Lenovo laptops
When suspending to idle and resuming on some Lenovo laptops using the
Mendocino APU, multiple NVME IOMMU page faults occur, showing up in
dmesg as repeated errors:

nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000b
address=0xb6674000 flags=0x0000]

The system is unstable afterwards.

Applying the s2idle quirk introduced by commit 455cd867b8 ("platform/x86:
thinkpad_acpi: Add a s2idle resume quirk for a number of laptops")
allows these systems to work with the IOMMU enabled and s2idle
resume to work.

Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218024
Suggested-by: Mario Limonciello <mario.limonciello@amd.com>
Suggested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: David Lazar <dlazar@gmail.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://lore.kernel.org/r/ZTlsyOaFucF2pWrL@localhost
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-10-27 16:42:12 +02:00
Shyam Sundar S K
3f720b21ec
platform/x86/amd/pmc: Add dump_custom_stb module parameter
There have been instances when the default size (1M) of the STB is not
sufficient to get the complete traces of the failure. In such scenarios
we can use a module_param to enable full trace that shall contain more
debugging data. This is not a regular case and hence not enabling this
capability by default.

With this change, there will be two cases on how the driver fetches the
stb data:
1) A special case (proposed now) - which is required only for certain
platforms. Here, a new module param will be supplied to the driver that
will have a special PMFW supporting enhanced dram sizes for getting
the stb data. Without the special PMFW support, just setting the module
param will not help to get the enhanced stb data.

To adapt to this change, we will have a new amd_pmc_stb_handle_efr() to
handle enhanced firmware reporting mechanism. Note that, since num_samples
based r/w pointer offset calculation is not required for enhanced firmware
reporting we will have this mailbox command sent only in case of regular
STB cases.

2) Current code branch which fetches the stb data based on the parameters
like the num_samples, fsize and the r/w pointer.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Co-developed-by: Harsh Jain <Harsh.Jain@amd.com>
Signed-off-by: Harsh Jain <Harsh.Jain@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20231010145003.139932-3-Shyam-sundar.S-k@amd.com
[ij: Renamed flex_arr -> stb_data_arr]
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-10-12 17:00:22 +03:00
Shyam Sundar S K
b136225746
platform/x86/amd/pmc: Handle overflow cases where the num_samples range is higher
In amd_pmc_stb_debugfs_open_v2(), the stb buffer is created based on the
num_samples and the read/write pointer offset. This holds good when the
num_samples reported by PMFW is less than S2D_TELEMETRY_BYTES_MAX; where
the stb buffer gets filled from 0th position until
S2D_TELEMETRY_BYTES_MAX - 1 based on the read/write pointer offset.

But when the num_samples exceeds the S2D_TELEMETRY_BYTES_MAX, the current
code does not handle it well as it does not account for the cases where
the stb buffer has to filled up as a circular buffer.

Handle this scenario into two cases, where first memcpy will have the
samples from location:
(num_samples % S2D_TELEMETRY_BYTES_MAX) - (S2D_TELEMETRY_BYTES_MAX - 1)
and next memcpy will have the newest ones i.e.
0 - (num_samples % S2D_TELEMETRY_BYTES_MAX - 1)

Suggested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20231010145003.139932-2-Shyam-sundar.S-k@amd.com
[ij: renamed flex_arr -> stb_data_arr]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-10-12 16:55:31 +03:00
Shyam Sundar S K
d9f421da6b
platform/x86/amd/pmc: Use flex array when calling amd_pmc_stb_debugfs_open_v2()
Currently in amd_pmc_stb_debugfs_open_v2() the buffer size is assumed to
be fixed and a second call to amd_pmc_stb_debugfs_open_v2() may race with
a process holding open another fd. This could change "fsize" to a
bigger size causing an out of bounds read.

Instead create a struct with a flexarray to solve this.

Suggested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20231010145003.139932-1-Shyam-sundar.S-k@amd.com
[ij: renamed flex_arr -> stb_data_arr]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-10-12 16:40:09 +03:00
Shyam Sundar S K
cdb1013808
platform/x86/amd/pmc: Add PMFW command id to support S2D force flush
Recent PMFW have the capability that can force flush the FIFO
contents to DRAM on sending a command id via the mailbox. Add this support
to the driver.

Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20230910142034.2967110-1-Shyam-sundar.S-k@amd.com
[ij: Corrected whitespace in dev_dbg_once()]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-10-06 12:57:22 +03:00
Shyam Sundar S K
5ee473bbf4 platform/x86/amd/pmc: Fix build error with randconfig
on x86_64:

CONFIG_SUSPEND is not set
CONFIG_PM is not set

this leads to build failure of the AMD PMC driver. Add a 'depends on'
in the Kconfig.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Closes: https://lore.kernel.org/lkml/5181685c-29d8-22a4-a2d7-682f26e2e031@infradead.org/
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230826161213.3180194-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-08-28 10:43:57 +02:00
Shyam Sundar S K
92c2fb8fa5 platform/x86/amd/pmc: Move PMC driver to separate directory
With latest commits having PMC code spread across multiple files, it would
be easier to maintain them in a separate directory under amd/pmc.

Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20230811112116.2279419-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-08-23 17:31:26 +02:00