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>

diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
index 2c22ba49c4533dba3388ffa47f2538154587ad82..9311b6acc34dcab4b88edf981e8441fdb6373c33 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
@@ -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)