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AMD MI300 MCM provides GET_METRICS_TABLE message to retrieve all the system management information from SMU. The metrics table is made available as hexadecimal sysfs binary file under per socket sysfs directory created at /sys/devices/platform/amd_hsmp/socket%d/metrics_bin Metrics table definitions will be documented as part of Public PPR. The same is defined in the amd_hsmp.h header. Signed-off-by: Suma Hegde <suma.hegde@amd.com> Reviewed-by: Naveen Krishna Chatradhi <nchatrad@amd.com> Link: https://lore.kernel.org/r/20231010120310.3464066-2-suma.hegde@amd.com [ij: lseek -> lseek(), dram -> DRAM in dev_err()] [ij: added period to terminate a documentation sentence] Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>