vce_v1_0_enable_mgcg
vce_v1_0_enable_mgcg(rdev, false);
vce_v1_0_enable_mgcg(rdev, true);
vce_v1_0_enable_mgcg(rdev, false);
vce_v1_0_enable_mgcg(rdev, true);
void vce_v1_0_enable_mgcg(struct radeon_device *rdev, bool enable);