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drm/amd/powerplay: implement VCN power gating control interface 

VCN Gate/Ungate by processing the SMU power up/down message, otherwise
S3 will resume failed as JPEG always power off during start VCN stage.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Prike Liang 2019-09-16 15:56:52 +08:00 committed by Alex Deucher
parent 57516cdd74
commit 08dac62f3e
1 changed files with 27 additions and 1 deletions
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28
drivers/gpu/drm/amd/powerplay/renoir_ppt.c
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@ -278,6 +278,32 @@ static enum amd_pm_state_type renoir_get_current_power_state(struct smu_context
return pm_type;
}
static int renoir_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) {
/* 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 {
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;
}
return ret;
}
static const struct pptable_funcs renoir_ppt_funcs = {
.get_smu_msg_index = renoir_get_smu_msg_index,
.get_smu_table_index = renoir_get_smu_table_index,
@ -286,7 +312,7 @@ static const struct pptable_funcs renoir_ppt_funcs = {
.get_dpm_uclk_limited = renoir_get_dpm_uclk_limited,
.print_clk_levels = renoir_print_clk_levels,
.get_current_power_state = renoir_get_current_power_state,
.dpm_set_uvd_enable = renoir_dpm_set_uvd_enable,
};
void renoir_set_ppt_funcs(struct smu_context *smu)