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drm/amd/pm: add set{get}_power_limit support for smu 15.0.8

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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>
This commit is contained in:
Yang Wang
2025-10-22 21:32:55 +08:00
committed by Alex Deucher
parent 39e0a73bde
commit e20e47bcb3
2 changed files with 35 additions and 0 deletions
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1
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
View File

@@ -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);

34
drivers/gpu/drm/amd/pm/swsmu/smu15/smu_v15_0_8_ppt.c
View File

@@ -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,