HEVC_ENC_CMD_IB_VM 1024 drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c 	amdgpu_ring_write(ring, HEVC_ENC_CMD_IB_VM);
HEVC_ENC_CMD_IB_VM 1328 drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c 	amdgpu_ring_write(ring, HEVC_ENC_CMD_IB_VM);