platform/x86/amd/pmf: Add 1AH_M80H metrics table and NPU metrics support

The 1AH_M80H platform introduces a new firmware managed DRAM based
metrics table (amd_pmf_metrics_v3) covering the full platform telemetry
including power, voltages, frequencies, throttlers and activity monitors.

As a first consumer of this table, add NPU metrics retrieval. Unlike
earlier platforms that use a transfer table command, 1AH_M80H metrics
are accumulator based and require delta calculation between consecutive
samples.

Extend amd_pmf_npu_metrics with npu_temp, populated from the
npu_temp_acc accumulator field available on 1AH_M80H.

Key changes include:
 - Add DRAM based metrics table support for the 1AH_M80H platform
 - Introduce amd_pmf_get_tbl_dram_addr() to obtain the DRAM address
 - Add amd_pmf_get_metrics_table_log_sample() to trigger metrics updates
 - Add struct amd_pmf_metrics_v3 for the 1AH_M80H metrics format
 - Implement accumulator based delta calculation for metrics
 - Introduce amd_pmf_calculate_acc_npu_metrics() to get NPU metrics
 - Introduce amd_pmf_supports_accumulator_metrics() to check the
   accumulator based metrics support.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://patch.msgid.link/20260723111534.1940925-8-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

0 files changed, 0 insertions, 0 deletions