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_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
index 92cf1af..93c2f2c 100644
--- a/drivers/gpu/drm/qxl/qxl_cmd.c
+++ b/drivers/gpu/drm/qxl/qxl_cmd.c
@@ -49,6 +49,11 @@
kfree(ring);
}
+void qxl_ring_init_hdr(struct qxl_ring *ring)
+{
+ ring->ring->header.notify_on_prod = ring->n_elements;
+}
+
struct qxl_ring *
qxl_ring_create(struct qxl_ring_header *header,
int element_size,
@@ -69,7 +74,7 @@
ring->prod_notify = prod_notify;
ring->push_event = push_event;
if (set_prod_notify)
- header->notify_on_prod = ring->n_elements;
+ qxl_ring_init_hdr(ring);
spin_lock_init(&ring->lock);
return ring;
}
@@ -87,7 +92,7 @@
return ret;
}
-static int qxl_check_idle(struct qxl_ring *ring)
+int qxl_check_idle(struct qxl_ring *ring)
{
int ret;
struct qxl_ring_header *header = &(ring->ring->header);
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)