sna/dri3: Flush the DRI3 pixmap bo before reporting the fd to the client

When the client first receives the fd to the pixmap, the presumption is
that it is coherent. (Give or take concurrent rendering to the pixmap
which will be reported in later Damage events.) We queue all damage to
the GPU, but we also need to remember to finally flush the command queue
so that the rendering is ordered implicitly with the client.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/sna/sna_dri3.c b/src/sna/sna_dri3.c
index a10c7fb0..ce4970ae 100644
--- a/src/sna/sna_dri3.c
+++ b/src/sna/sna_dri3.c
@@ -60,6 +60,8 @@ static inline void mark_dri3_pixmap(struct sna *sna, struct sna_pixmap *priv, st
 		priv->shm = true;
 
 	sna_watch_flush(sna, 1);
+
+	kgem_bo_submit(&sna->kgem, bo);
 	kgem_bo_unclean(&sna->kgem, bo);
 }