uvd_v1_0_ring_test
.ring_test = &uvd_v1_0_ring_test,
.ring_test = &uvd_v1_0_ring_test,
.ring_test = &uvd_v1_0_ring_test,
int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring);