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drm/amd/powerplay: retrieve the enabled feature mask from cache

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This is why those feature mask members designed for. And this
can reduce the SMU workload.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2019-12-30 17:08:29 +08:00 committed by Alex Deucher
parent e42877b8ba
commit 6a876844e4
2 changed files with 36 additions and 27 deletions
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2
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
View File

@ -1319,7 +1319,7 @@ static int smu_hw_init(void *handle)
static int smu_stop_dpms(struct smu_context *smu)
{
return smu_send_smc_msg(smu, SMU_MSG_DisableAllSmuFeatures);
return smu_system_features_control(smu, false);
}
static int smu_hw_fini(void *handle)

61
drivers/gpu/drm/amd/powerplay/smu_v11_0.c
View File

@ -835,27 +835,33 @@ int smu_v11_0_get_enabled_mask(struct smu_context *smu,
uint32_t *feature_mask, uint32_t num)
{
uint32_t feature_mask_high = 0, feature_mask_low = 0;
struct smu_feature *feature = &smu->smu_feature;
int ret = 0;
if (!feature_mask || num < 2)
return -EINVAL;
ret = smu_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesHigh);
if (ret)
return ret;
ret = smu_read_smc_arg(smu, &feature_mask_high);
if (ret)
return ret;
if (bitmap_empty(feature->enabled, feature->feature_num)) {
ret = smu_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesHigh);
if (ret)
return ret;
ret = smu_read_smc_arg(smu, &feature_mask_high);
if (ret)
return ret;
ret = smu_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesLow);
if (ret)
return ret;
ret = smu_read_smc_arg(smu, &feature_mask_low);
if (ret)
return ret;
ret = smu_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesLow);
if (ret)
return ret;
ret = smu_read_smc_arg(smu, &feature_mask_low);
if (ret)
return ret;
feature_mask[0] = feature_mask_low;
feature_mask[1] = feature_mask_high;
feature_mask[0] = feature_mask_low;
feature_mask[1] = feature_mask_high;
} else {
bitmap_copy((unsigned long *)feature_mask, feature->enabled,
feature->feature_num);
}
return ret;
}
@ -867,21 +873,24 @@ int smu_v11_0_system_features_control(struct smu_context *smu,
uint32_t feature_mask[2];
int ret = 0;
if (smu->pm_enabled) {
ret = smu_send_smc_msg(smu, (en ? SMU_MSG_EnableAllSmuFeatures :
SMU_MSG_DisableAllSmuFeatures));
if (ret)
return ret;
}
ret = smu_feature_get_enabled_mask(smu, feature_mask, 2);
ret = smu_send_smc_msg(smu, (en ? SMU_MSG_EnableAllSmuFeatures :
SMU_MSG_DisableAllSmuFeatures));
if (ret)
return ret;
bitmap_copy(feature->enabled, (unsigned long *)&feature_mask,
feature->feature_num);
bitmap_copy(feature->supported, (unsigned long *)&feature_mask,
feature->feature_num);
if (en) {
ret = smu_feature_get_enabled_mask(smu, feature_mask, 2);
if (ret)
return ret;
bitmap_copy(feature->enabled, (unsigned long *)&feature_mask,
feature->feature_num);
bitmap_copy(feature->supported, (unsigned long *)&feature_mask,
feature->feature_num);
} else {
bitmap_zero(feature->enabled, feature->feature_num);
bitmap_zero(feature->supported, feature->feature_num);
}
return ret;
}