drm/amd/powerplay: add control gfxoff enabling in late init

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/amd_powerplay.c

@@ -180,6 +180,7 @@ static int pp_late_init(void *handle)
 {
 	struct amdgpu_device *adev = handle;
 	struct pp_hwmgr *hwmgr = adev->powerplay.pp_handle;
+	int ret;
 
 	if (hwmgr && hwmgr->pm_en) {
 		mutex_lock(&hwmgr->smu_lock);
@@ -189,6 +190,14 @@ static int pp_late_init(void *handle)
 	}
 	if (adev->pm.smu_prv_buffer_size != 0)
 		pp_reserve_vram_for_smu(adev);
+
+	if (hwmgr->hwmgr_func->gfx_off_control &&
+	    (hwmgr->feature_mask & PP_GFXOFF_MASK)) {
+		ret = hwmgr->hwmgr_func->gfx_off_control(hwmgr, true);
+		if (ret)
+			pr_err("gfx off enabling failed!\n");
+	}
+
 	return 0;
 }