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| author | Yang Wang <kevinyang.wang@amd.com> | 2025-10-22 16:32:55 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-03-23 21:18:07 +0300 |
| commit | e20e47bcb3f1e90e2fd8bd8b543224d1bdd3ba3f (patch) | |
| tree | 73114dce2ce84a62ca58ef5cdcea4487f2422594 | |
| parent | 39e0a73bdeb0890718260d0bde256ef50288bb80 (diff) | |
| download | linux-e20e47bcb3f1e90e2fd8bd8b543224d1bdd3ba3f.tar.xz | |
drm/amd/pm: add set{get}_power_limit support for smu 15.0.8
export .set_power_limit & .get_power_limit interface for smu 15.0.8
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu15/smu_v15_0_8_ppt.c | 34 |
2 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index 013d34e2f842..eee2fe0743b2 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -2966,6 +2966,7 @@ int smu_get_power_limit(void *handle, case IP_VERSION(11, 0, 11): case IP_VERSION(11, 0, 12): case IP_VERSION(11, 0, 13): + case IP_VERSION(15, 0, 8): ret = smu_get_asic_power_limits(smu, &smu->current_power_limit, NULL, NULL, NULL); diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu15/smu_v15_0_8_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu15/smu_v15_0_8_ppt.c index f3aa25c59f9c..0c06b6500121 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu15/smu_v15_0_8_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu15/smu_v15_0_8_ppt.c @@ -1147,6 +1147,38 @@ static void smu_v15_0_8_get_unique_id(struct smu_context *smu) adev->unique_id = pptable->PublicSerialNumberMID; } +static int smu_v15_0_8_get_power_limit(struct smu_context *smu, + uint32_t *current_power_limit, + uint32_t *default_power_limit, + uint32_t *max_power_limit, + uint32_t *min_power_limit) +{ + struct smu_table_context *smu_table = &smu->smu_table; + PPTable_t *pptable = (PPTable_t *)smu_table->driver_pptable; + uint32_t power_limit = 0; + int ret; + + ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetPptLimit, &power_limit); + if (ret) { + dev_err(smu->adev->dev, "Couldn't get PPT limit"); + return -EINVAL; + } + + if (current_power_limit) + *current_power_limit = power_limit; + + if (default_power_limit) + *max_power_limit = pptable->MaxSocketPowerLimit; + + if (max_power_limit) + *max_power_limit = pptable->MaxSocketPowerLimit; + + if (min_power_limit) + *min_power_limit = 0; + + return 0; +} + static const struct pptable_funcs smu_v15_0_8_ppt_funcs = { .init_allowed_features = smu_v15_0_8_init_allowed_features, .set_default_dpm_table = smu_v15_0_8_set_default_dpm_table, @@ -1172,6 +1204,8 @@ static const struct pptable_funcs smu_v15_0_8_ppt_funcs = { .get_dpm_ultimate_freq = smu_v15_0_8_get_dpm_ultimate_freq, .get_gpu_metrics = smu_v15_0_8_get_gpu_metrics, .get_unique_id = smu_v15_0_8_get_unique_id, + .get_power_limit = smu_v15_0_8_get_power_limit, + .set_power_limit = smu_v15_0_set_power_limit, }; static void smu_v15_0_8_init_msg_ctl(struct smu_context *smu, |