radeon_fence_driver_force_completion
void radeon_fence_driver_force_completion(struct radeon_device *rdev, int ring);
radeon_fence_driver_force_completion(rdev, i);
radeon_fence_driver_force_completion(rdev, i);
radeon_fence_driver_force_completion(rdev, ring);
radeon_fence_driver_force_completion(rdev, i);