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drm/amd/powerplay: correct navi10 vcn powergate

Browse source 
vcn dpm on is a prerequisite for vcn power gate control.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2019-08-02 16:38:32 +08:00 committed by Alex Deucher
parent 8ecd998deb
commit b887011803
3 changed files with 19 additions and 9 deletions
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4
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
View file

@ -315,6 +315,8 @@ int smu_get_power_num_states(struct smu_context *smu,
int smu_common_read_sensor(struct smu_context *smu, enum amd_pp_sensors sensor,
void *data, uint32_t *size)
{
struct smu_power_context *smu_power = &smu->smu_power;
struct smu_power_gate *power_gate = &smu_power->power_gate;
int ret = 0;
switch (sensor) {
@ -339,7 +341,7 @@ int smu_common_read_sensor(struct smu_context *smu, enum amd_pp_sensors sensor,
*size = 4;
break;
case AMDGPU_PP_SENSOR_VCN_POWER_STATE:
*(uint32_t *)data = smu_feature_is_enabled(smu, SMU_FEATURE_VCN_PG_BIT) ? 1 : 0;
*(uint32_t *)data = power_gate->vcn_gated ? 0 : 1;
*size = 4;
break;
default:

1
drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
View file

@ -451,6 +451,7 @@ struct smu_dpm_context {
struct smu_power_gate {
bool uvd_gated;
bool vce_gated;
bool vcn_gated;
};
struct smu_power_context {

23
drivers/gpu/drm/amd/powerplay/navi10_ppt.c
View file

@ -605,20 +605,27 @@ static int navi10_set_default_dpm_table(struct smu_context *smu)
static int navi10_dpm_set_uvd_enable(struct smu_context *smu, bool enable)
{
struct smu_power_context *smu_power = &smu->smu_power;
struct smu_power_gate *power_gate = &smu_power->power_gate;
int ret = 0;
if (enable) {
ret = smu_send_smc_msg_with_param(smu, SMU_MSG_PowerUpVcn, 1);
if (ret)
return ret;
/* vcn dpm on is a prerequisite for vcn power gate messages */
if (smu_feature_is_enabled(smu, SMU_FEATURE_VCN_PG_BIT)) {
ret = smu_send_smc_msg_with_param(smu, SMU_MSG_PowerUpVcn, 1);
if (ret)
return ret;
}
power_gate->vcn_gated = false;
} else {
ret = smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn);
if (ret)
return ret;
if (smu_feature_is_enabled(smu, SMU_FEATURE_VCN_PG_BIT)) {
ret = smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn);
if (ret)
return ret;
}
power_gate->vcn_gated = true;
}
ret = smu_feature_set_enabled(smu, SMU_FEATURE_VCN_PG_BIT, enable);
return ret;
}