kernel/linux.git/drivers/platform/x86/amd/pmf, branch v6.18.43

platform/x86/amd/pmf: Prevent TEE errors after hibernate

2026-02-26T22:59:25+00:00

[ Upstream commit 48d229c7047128dd52eaf863881bb3e62b5896e5 ] After resuming from hibernate, TEE commands can time out and cause PSP disables. Fix this by reinitializing the Trusted Application (TA) and cancelling the pb workqueue in the hibernate callbacks to avoid these errors. ccp 0000:c4:00.2: tee: command 0x5 timed out, disabling PSP amd-pmf AMDI0107:00: TEE enact cmd failed. err: ffff000e, ret:0 amd-pmf AMDI0107:00: TEE enact cmd failed. err: ffff000e, ret:0 amd-pmf AMDI0107:00: TEE enact cmd failed. err: ffff000e, ret:0 Fixes: ae82cef7d9c5 ("platform/x86/amd/pmf: Add support for PMF-TA interaction") Reported-by: Lars Francke Closes: https://lore.kernel.org/platform-driver-x86/CAD-Ua_gfJnQSo8ucS_7ZwzuhoBRJ14zXP7s8b-zX3ZcxcyWePw@mail.gmail.com/ Tested-by: Yijun Shen Co-developed-by: Patil Rajesh Reddy Signed-off-by: Patil Rajesh Reddy Signed-off-by: Shyam Sundar S K [ML: Add more tags] Signed-off-by: Mario Limonciello (AMD) Link: https://patch.msgid.link/20260116041132.153674-2-superm1@kernel.org Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin

Merge tag 'platform-drivers-x86-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

2025-10-04T22:28:18+00:00

Pull x86 platform driver updates from Ilpo Järvinen: - amd/pmf: - Add support for adjusting PMF PPT and PPT APU thresholds - Extend custom BIOS inputs for more policies - Update ta_pmf_action structure to the latest PMF TA - arm64: - thinkpad-t14s-ec: Add EC driver for ThinkPad T14s Gen6 Snapdragon - int3472: - Increase handshake GPIO delay - intel/pmc: - SSRAM support for Lunar Lake and Panther Lake - Support reading substate requirements data from S0ix blockers (for platforms starting from Panther Lake) - Wildcat Lake support - intel-uncore-freq: - Solve duplicate sysfs entry warnings - Present unique domain ID per package - portwell-ec: - Support suspend/resume - Add hwmon support for voltage and temperature - redmi-wmi: - Add WMI driver for Redmibook keyboard - think-lmi: - Certificate support for ThinkCenter - x86-android-tables + others: - Convert away from legacy GPIO APIs - x86-android-tables: - Add support for Acer A1-840 tablet - Fix modules list for Lenovo devices - Stop using EPROBE_DEFER - Miscellaneous cleanups / refactoring / improvements * tag 'platform-drivers-x86-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (63 commits) platform/x86: pcengines-apuv2: Use static device properties platform/x86: meraki-mx100: Use static device properties platform/x86: barco-p50-gpio: use software nodes for gpio-leds/keys platform/x86: x86-android-tablets: Stop using EPROBE_DEFER platform/x86: x86-android-tablets: Fix modules lists for Lenovo devices platform/x86: x86-android-tablets: Simplify lenovo_yoga_tab2_830_1050_exit() platform/x86: x86-android-tablets: Add support for Acer A1-840 tablet platform/x86: x86-android-tablets: Move Acer info to its own file platform/x86: x86-android-tablets: Update my email address platform/x86: x86-android-tablets: Simplify node-group [un]registration platform/x86: x86-android-tablets: use swnode_group instead of manual registering platform/x86: x86-android-tablets: replace bat_swnode with swnode_group platform/x86: x86-android-tablets: convert gpio_keys devices to GPIO references platform/x86: x86-android-tablets: remove support for GPIO lookup tables platform/x86: x86-android-tablets: convert Yoga Tab2 fast charger to GPIO references platform/x86: x86-android-tablets: convert HID-I2C devices to GPIO references platform/x86: x86-android-tablets: convert wm1502 devices to GPIO references platform/x86: x86-android-tablets: convert int3496 devices to GPIO references platform/x86: x86-android-tablets: convert EDT devices to GPIO references platform/x86: x86-android-tablets: convert Novatek devices to GPIO references ...

platform/x86/amd/pmf: Support new ACPI ID AMDI0108

2025-09-16T08:27:42+00:00

Include the ACPI ID AMDI0108, which is used on upcoming AMD platforms, in the PMF driver's list of supported devices. Signed-off-by: Shyam Sundar S K Reviewed-by: Mario Limonciello (AMD) Link: https://patch.msgid.link/20250915090546.2759130-1-Shyam-sundar.S-k@amd.com Signed-off-by: Ilpo Järvinen

platform/x86/amd/pmf: Add debug logs for pending requests and custom BIOS inputs

2025-09-11T08:03:47+00:00

This patch adds debug logging capabilities to monitor early pending requests and their associated custom BIOS inputs during runtime. Co-developed-by: Patil Rajesh Reddy Signed-off-by: Patil Rajesh Reddy Tested-by: Yijun Shen Signed-off-by: Shyam Sundar S K Link: https://patch.msgid.link/20250901110140.2519072-10-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86/amd/pmf: Call enact function sooner to process early pending requests

2025-09-11T08:03:46+00:00

Call the amd_pmf_invoke_cmd_enact() function to manage early pending requests and their associated custom BIOS inputs. Add a return statement for cases of failure. The PMF driver will adjust power settings according to custom BIOS inputs after assessing the policy conditions. Also, add a new common routine amd_pmf_handle_early_preq() to handle early BIOS pending requests for both v1 and v2 variants. Co-developed-by: Patil Rajesh Reddy Signed-off-by: Patil Rajesh Reddy Tested-by: Yijun Shen Signed-off-by: Shyam Sundar S K Link: https://patch.msgid.link/20250901110140.2519072-9-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86/amd/pmf: Preserve custom BIOS inputs for evaluating the policies

2025-09-11T08:03:44+00:00

The current code fails to send multiple BIOS input data to the PMF-TA for policy condition evaluation. Only the most recent BIOS input data is properly sent to the PMF-TA, while previous inputs are overwritten with the zeros. To address this issue, the BIOS input data should be stored and passed on to the PMF-TA. Co-developed-by: Patil Rajesh Reddy Signed-off-by: Patil Rajesh Reddy Tested-by: Yijun Shen Signed-off-by: Shyam Sundar S K Link: https://patch.msgid.link/20250901110140.2519072-8-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86/amd/pmf: Add custom BIOS input support for AMD_CPU_ID_PS

2025-09-11T08:03:42+00:00

The PMF ACPI Specification (APMF) has been revised to version 1.3 to allow for additional custom BIOS inputs, enabling OEMs to have more precise thermal management of the system. This update includes adding support to the driver using the new data structure received from the BIOS through the existing APMF interfaces. Co-developed-by: Patil Rajesh Reddy Signed-off-by: Patil Rajesh Reddy Tested-by: Yijun Shen Signed-off-by: Shyam Sundar S K Link: https://patch.msgid.link/20250901110140.2519072-7-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86/amd/pmf: Add helper to verify BIOS input notifications are enable/disable

2025-09-11T08:03:41+00:00

Implement a helper function to check if BIOS input notifications are enabled or disabled. Co-developed-by: Patil Rajesh Reddy Signed-off-by: Patil Rajesh Reddy Tested-by: Yijun Shen Signed-off-by: Shyam Sundar S K Link: https://patch.msgid.link/20250901110140.2519072-6-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86/amd/pmf: Update ta_pmf_action structure member

2025-09-11T08:03:39+00:00

The latest PMF TA has been updated with the additional structure members for internal evaluation. Since this same structure is utilized in the driver, it also needs to be updated on the driver side. Otherwise, there will be a mismatch in the byte sizes when copying data from shared memory. Suggested-by: Yijun Shen Tested-by: Yijun Shen Signed-off-by: Shyam Sundar S K Link: https://patch.msgid.link/20250901110140.2519072-5-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86/amd/pmf: Extend custom BIOS inputs for more policies

2025-09-11T08:03:37+00:00

The existing amd_pmf driver is limited to supporting just two custom BIOS inputs. However, with the updates to the latest PMF TA, there's a requirement to broaden this capacity to handle 10 inputs, aligning with the TA firmware's capabilities. The necessary logic should be implemented to facilitate this expansion of functionality. Co-developed-by: Patil Rajesh Reddy Signed-off-by: Patil Rajesh Reddy Tested-by: Yijun Shen Signed-off-by: Shyam Sundar S K Link: https://patch.msgid.link/20250901110140.2519072-4-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen