drm/amd/pp: Add smu support for VCN powergating on RV

Add the powerplay callback for powergating VCN (same
as UVD and VCE).

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

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
index 017ef2d..85f84f4 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
@@ -1128,6 +1128,23 @@ static int smu10_set_mmhub_powergating_by_smu(struct pp_hwmgr *hwmgr)
        return smum_send_msg_to_smc(hwmgr, PPSMC_MSG_PowerGateMmHub);
 }
 
+static void smu10_powergate_vcn(struct pp_hwmgr *hwmgr, bool bgate)
+{
+       if (bgate) {
+               amdgpu_device_ip_set_powergating_state(hwmgr->adev,
+                                               AMD_IP_BLOCK_TYPE_VCN,
+                                               AMD_PG_STATE_GATE);
+               smum_send_msg_to_smc_with_parameter(hwmgr,
+                                       PPSMC_MSG_PowerDownVcn, 0);
+       } else {
+               smum_send_msg_to_smc_with_parameter(hwmgr,
+                                               PPSMC_MSG_PowerUpVcn, 0);
+               amdgpu_device_ip_set_powergating_state(hwmgr->adev,
+                                               AMD_IP_BLOCK_TYPE_VCN,
+                                               AMD_PG_STATE_UNGATE);
+       }
+}
+
 static const struct pp_hwmgr_func smu10_hwmgr_funcs = {
        .backend_init = smu10_hwmgr_backend_init,
        .backend_fini = smu10_hwmgr_backend_fini,
@@ -1136,7 +1153,7 @@ static const struct pp_hwmgr_func smu10_hwmgr_funcs = {
        .force_dpm_level = smu10_dpm_force_dpm_level,
        .get_power_state_size = smu10_get_power_state_size,
        .powerdown_uvd = NULL,
-       .powergate_uvd = NULL,
+       .powergate_uvd = smu10_powergate_vcn,
        .powergate_vce = NULL,
        .get_mclk = smu10_dpm_get_mclk,
        .get_sclk = smu10_dpm_get_sclk,