qxl_ring_header
struct qxl_ring_header *header = &(ring->ring->header);
volatile struct qxl_ring_header *header = &(ring->ring->header);
struct qxl_ring_header header;
qxl_ring_create(struct qxl_ring_header *header,
struct qxl_ring_header *header = &(ring->ring->header);
struct qxl_ring_header *header = &(ring->ring->header);
struct qxl_ring_header cmd_ring_hdr;
struct qxl_ring_header cursor_ring_hdr;
struct qxl_ring_header release_ring_hdr;
struct qxl_ring *qxl_ring_create(struct qxl_ring_header *header,