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drm/amd/powerplay: dynamically disable ds and ulv for compute 

This is to improve the performance in the compute mode
for vega10. For example, the original performance for a rocm
bandwidth test: 2G internal GPU copy, is about 99GB/s.
With the idle power features disabled dynamically, the porformance
is promoted to about 215GB/s.

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kenneth Feng 2019-11-08 13:20:30 +08:00 committed by Alex Deucher
parent 875dc7c4ff
commit 558491dda0
3 changed files with 65 additions and 0 deletions
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8
drivers/gpu/drm/amd/powerplay/amd_powerplay.c
View File

@ -969,6 +969,14 @@ static int pp_dpm_switch_power_profile(void *handle,
workload = hwmgr->workload_setting[index];
}
if (type == PP_SMC_POWER_PROFILE_COMPUTE &&
hwmgr->hwmgr_func->disable_power_features_for_compute_performance) {
if (hwmgr->hwmgr_func->disable_power_features_for_compute_performance(hwmgr, en)) {
mutex_unlock(&hwmgr->smu_lock);
return -EINVAL;
}
}
if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)
hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, &workload, 0);
mutex_unlock(&hwmgr->smu_lock);

55
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
View File

@ -5263,6 +5263,59 @@ static int vega10_get_performance_level(struct pp_hwmgr *hwmgr, const struct pp_
return 0;
}
static int vega10_disable_power_features_for_compute_performance(struct pp_hwmgr *hwmgr, bool disable)
{
struct vega10_hwmgr *data = hwmgr->backend;
uint32_t feature_mask = 0;
if (disable) {
feature_mask |= data->smu_features[GNLD_ULV].enabled ?
data->smu_features[GNLD_ULV].smu_feature_bitmap : 0;
feature_mask |= data->smu_features[GNLD_DS_GFXCLK].enabled ?
data->smu_features[GNLD_DS_GFXCLK].smu_feature_bitmap : 0;
feature_mask |= data->smu_features[GNLD_DS_SOCCLK].enabled ?
data->smu_features[GNLD_DS_SOCCLK].smu_feature_bitmap : 0;
feature_mask |= data->smu_features[GNLD_DS_LCLK].enabled ?
data->smu_features[GNLD_DS_LCLK].smu_feature_bitmap : 0;
feature_mask |= data->smu_features[GNLD_DS_DCEFCLK].enabled ?
data->smu_features[GNLD_DS_DCEFCLK].smu_feature_bitmap : 0;
} else {
feature_mask |= (!data->smu_features[GNLD_ULV].enabled) ?
data->smu_features[GNLD_ULV].smu_feature_bitmap : 0;
feature_mask |= (!data->smu_features[GNLD_DS_GFXCLK].enabled) ?
data->smu_features[GNLD_DS_GFXCLK].smu_feature_bitmap : 0;
feature_mask |= (!data->smu_features[GNLD_DS_SOCCLK].enabled) ?
data->smu_features[GNLD_DS_SOCCLK].smu_feature_bitmap : 0;
feature_mask |= (!data->smu_features[GNLD_DS_LCLK].enabled) ?
data->smu_features[GNLD_DS_LCLK].smu_feature_bitmap : 0;
feature_mask |= (!data->smu_features[GNLD_DS_DCEFCLK].enabled) ?
data->smu_features[GNLD_DS_DCEFCLK].smu_feature_bitmap : 0;
}
if (feature_mask)
PP_ASSERT_WITH_CODE(!vega10_enable_smc_features(hwmgr,
!disable, feature_mask),
"enable/disable power features for compute performance Failed!",
return -EINVAL);
if (disable) {
data->smu_features[GNLD_ULV].enabled = false;
data->smu_features[GNLD_DS_GFXCLK].enabled = false;
data->smu_features[GNLD_DS_SOCCLK].enabled = false;
data->smu_features[GNLD_DS_LCLK].enabled = false;
data->smu_features[GNLD_DS_DCEFCLK].enabled = false;
} else {
data->smu_features[GNLD_ULV].enabled = true;
data->smu_features[GNLD_DS_GFXCLK].enabled = true;
data->smu_features[GNLD_DS_SOCCLK].enabled = true;
data->smu_features[GNLD_DS_LCLK].enabled = true;
data->smu_features[GNLD_DS_DCEFCLK].enabled = true;
}
return 0;
}
static const struct pp_hwmgr_func vega10_hwmgr_funcs = {
.backend_init = vega10_hwmgr_backend_init,
.backend_fini = vega10_hwmgr_backend_fini,
@ -5330,6 +5383,8 @@ static const struct pp_hwmgr_func vega10_hwmgr_funcs = {
.get_ppfeature_status = vega10_get_ppfeature_status,
.set_ppfeature_status = vega10_set_ppfeature_status,
.set_mp1_state = vega10_set_mp1_state,
.disable_power_features_for_compute_performance =
vega10_disable_power_features_for_compute_performance,
};
int vega10_hwmgr_init(struct pp_hwmgr *hwmgr)

2
drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
View File

@ -357,6 +357,8 @@ struct pp_hwmgr_func {
int (*smu_i2c_bus_access)(struct pp_hwmgr *hwmgr, bool aquire);
int (*set_df_cstate)(struct pp_hwmgr *hwmgr, enum pp_df_cstate state);
int (*set_xgmi_pstate)(struct pp_hwmgr *hwmgr, uint32_t pstate);
int (*disable_power_features_for_compute_performance)(struct pp_hwmgr *hwmgr,
bool disable);
};
struct pp_table_func {