qxl: add ring prep code for s/r
This prepare the ring code for s/r additions, the release ring will need
reinitialising.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 056330e..aec9f1f 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -340,6 +340,8 @@
bool set_prod_notify,
wait_queue_head_t *push_event);
void qxl_ring_free(struct qxl_ring *ring);
+void qxl_ring_init_hdr(struct qxl_ring *ring);
+int qxl_check_idle(struct qxl_ring *ring);
static inline void *
qxl_fb_virtual_address(struct qxl_device *qdev, unsigned long physical)