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drm/amd/pm: invalidate hdp before CPU access the memory written by GPU 

To eliminate the possible influence by outdated HDP read cache.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2020-11-27 10:57:22 +08:00 committed by Alex Deucher
parent b7a1f38256
commit 0339258bd9
5 changed files with 6 additions and 11 deletions
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3
drivers/gpu/drm/amd/pm/powerplay/smumgr/smu10_smumgr.c
View File

@ -139,8 +139,7 @@ static int smu10_copy_table_from_smc(struct pp_hwmgr *hwmgr,
priv->smu_tables.entry[table_id].table_id,
NULL);
/* flush hdp cache */
amdgpu_asic_flush_hdp(adev, NULL);
amdgpu_asic_invalidate_hdp(adev, NULL);
memcpy(table, (uint8_t *)priv->smu_tables.entry[table_id].table,
priv->smu_tables.entry[table_id].size);

3
drivers/gpu/drm/amd/pm/powerplay/smumgr/vega10_smumgr.c
View File

@ -60,8 +60,7 @@ static int vega10_copy_table_from_smc(struct pp_hwmgr *hwmgr,
priv->smu_tables.entry[table_id].table_id,
NULL);
/* flush hdp cache */
amdgpu_asic_flush_hdp(adev, NULL);
amdgpu_asic_invalidate_hdp(adev, NULL);
memcpy(table, priv->smu_tables.entry[table_id].table,
priv->smu_tables.entry[table_id].size);

3
drivers/gpu/drm/amd/pm/powerplay/smumgr/vega12_smumgr.c
View File

@ -68,8 +68,7 @@ static int vega12_copy_table_from_smc(struct pp_hwmgr *hwmgr,
"[CopyTableFromSMC] Attempt to Transfer Table From SMU Failed!",
return -EINVAL);
/* flush hdp cache */
amdgpu_asic_flush_hdp(adev, NULL);
amdgpu_asic_invalidate_hdp(adev, NULL);
memcpy(table, priv->smu_tables.entry[table_id].table,
priv->smu_tables.entry[table_id].size);

6
drivers/gpu/drm/amd/pm/powerplay/smumgr/vega20_smumgr.c
View File

@ -192,8 +192,7 @@ static int vega20_copy_table_from_smc(struct pp_hwmgr *hwmgr,
"[CopyTableFromSMC] Attempt to Transfer Table From SMU Failed!",
return ret);
/* flush hdp cache */
amdgpu_asic_flush_hdp(adev, NULL);
amdgpu_asic_invalidate_hdp(adev, NULL);
memcpy(table, priv->smu_tables.entry[table_id].table,
priv->smu_tables.entry[table_id].size);
@ -307,8 +306,7 @@ int vega20_get_activity_monitor_coeff(struct pp_hwmgr *hwmgr,
"[GetActivityMonitor] Attempt to Transfer Table From SMU Failed!",
return ret);
/* flush hdp cache */
amdgpu_asic_flush_hdp(adev, NULL);
amdgpu_asic_invalidate_hdp(adev, NULL);
memcpy(table, priv->smu_tables.entry[TABLE_ACTIVITY_MONITOR_COEFF].table,
priv->smu_tables.entry[TABLE_ACTIVITY_MONITOR_COEFF].size);

2
drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
View File

@ -655,7 +655,7 @@ int smu_cmn_update_table(struct smu_context *smu,
return ret;
if (!drv2smu) {
amdgpu_asic_flush_hdp(adev, NULL);
amdgpu_asic_invalidate_hdp(adev, NULL);
memcpy(table_data, table->cpu_addr, table_size);
}