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linux-imx/Documentation/ABI/testing/sysfs-amd-pmc
Mario Limonciello 7f1ea75d49 platform/x86/amd: pmc: Add sysfs files for SMU 
The CPU/APU SMU FW version and program is currently discoverable by
turning on dynamic debugging or examining debugfs for the amdgpu
driver. To make this more discoverable, create a dedicated sysfs
file for it that userspace can parse without debugging enabled.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20220914141850.259-1-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-09-19 13:48:38 +02:00

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What: /sys/bus/platform/drivers/amd_pmc/*/smu_fw_version Date: October 2022 Contact: Mario Limonciello mario.limonciello@amd.com Description: Reading this file reports the version of the firmware loaded to System Management Unit (SMU) contained in AMD CPUs and APUs.

What: /sys/bus/platform/drivers/amd_pmc/*/smu_program Date: October 2022 Contact: Mario Limonciello mario.limonciello@amd.com Description: Reading this file reports the program corresponding to the SMU firmware version. The program field is used to disambiguate two APU/CPU models that can share the same firmware binary.