v10_gfx_mqd
sizeof(struct v10_gfx_mqd);
struct v10_gfx_mqd *mqd,
struct v10_gfx_mqd *mqd = m;
struct v10_gfx_mqd *mqd = ring->mqd_ptr;
offsetof(struct v10_gfx_mqd, cp_gfx_hqd_active);