projects
/
platform
/
kernel
/
linux-exynos.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
c2e3259
)
drm/nvc0/fifo: prevent races between clients updating playlists
author
Ben Skeggs
<bskeggs@redhat.com>
Mon, 13 May 2013 00:02:11 +0000
(10:02 +1000)
committer
Ben Skeggs
<bskeggs@redhat.com>
Mon, 20 May 2013 03:24:07 +0000
(13:24 +1000)
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
patch
|
blob
|
history
diff --git
a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
index
4d4a6b9
..
1613193
100644
(file)
--- a/
drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
+++ b/
drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
@@
-71,6
+71,7
@@
nvc0_fifo_playlist_update(struct nvc0_fifo_priv *priv)
struct nouveau_gpuobj *cur;
int i, p;
+ mutex_lock(&nv_subdev(priv)->mutex);
cur = priv->playlist[priv->cur_playlist];
priv->cur_playlist = !priv->cur_playlist;
@@
-87,6
+88,7
@@
nvc0_fifo_playlist_update(struct nvc0_fifo_priv *priv)
nv_wr32(priv, 0x002274, 0x01f00000 | (p >> 3));
if (!nv_wait(priv, 0x00227c, 0x00100000, 0x00000000))
nv_error(priv, "playlist update failed\n");
+ mutex_unlock(&nv_subdev(priv)->mutex);
}
static int