drm/amdgpu: turn on/off uvd clock when dpm enable/disable on CI

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
index 3295fbb..e9b1964 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
@@ -887,9 +887,6 @@ static void ci_dpm_powergate_uvd(struct amdgpu_device *adev, bool gate)
 {
        struct ci_power_info *pi = ci_get_pi(adev);
 
-       if (pi->uvd_power_gated == gate)
-               return;
-
        pi->uvd_power_gated = gate;
 
        ci_update_uvd_dpm(adev, gate);
@@ -4201,8 +4198,15 @@ static int ci_update_uvd_dpm(struct amdgpu_device *adev, bool gate)
 {
        struct ci_power_info *pi = ci_get_pi(adev);
        u32 tmp;
+       int ret = 0;
 
        if (!gate) {
+               /* turn the clocks on when decoding */
+               ret = amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
+                                                   AMD_CG_STATE_UNGATE);
+               if (ret)
+                       return ret;
+
                if (pi->caps_uvd_dpm ||
                    (adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.count <= 0))
                        pi->smc_state_table.UvdBootLevel = 0;
@@ -4214,9 +4218,17 @@ static int ci_update_uvd_dpm(struct amdgpu_device *adev, bool gate)
                tmp &= ~DPM_TABLE_475__UvdBootLevel_MASK;
                tmp |= (pi->smc_state_table.UvdBootLevel << DPM_TABLE_475__UvdBootLevel__SHIFT);
                WREG32_SMC(ixDPM_TABLE_475, tmp);
+               ret = ci_enable_uvd_dpm(adev, true);
+       } else {
+               ret = ci_enable_uvd_dpm(adev, false);
+               if (ret)
+                       return ret;
+
+               ret = amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
+                                                   AMD_CG_STATE_GATE);
        }
 
-       return ci_enable_uvd_dpm(adev, !gate);
+       return ret;
 }
 
 static u8 ci_get_vce_boot_level(struct amdgpu_device *adev)