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drm/nv50-nv84/fifo: fix resume regression introduced by playlist race fix

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Reported-by: Maarten Maathuis <madman2003@gmail.com>
Reported-by: Sven Joachim <svenjoac@gmx.de>
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2013-06-03 15:43:30 +10:00
parent beba44b17d
commit 89e033a4bc
1 changed files with 10 additions and 4 deletions
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14
drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c
View file

@ -40,14 +40,13 @@
* FIFO channel objects
******************************************************************************/
void
nv50_fifo_playlist_update(struct nv50_fifo_priv *priv)
static void
nv50_fifo_playlist_update_locked(struct nv50_fifo_priv *priv)
{
struct nouveau_bar *bar = nouveau_bar(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;
@ -61,6 +60,13 @@ nv50_fifo_playlist_update(struct nv50_fifo_priv *priv)
nv_wr32(priv, 0x0032f4, cur->addr >> 12);
nv_wr32(priv, 0x0032ec, p);
nv_wr32(priv, 0x002500, 0x00000101);
}
void
nv50_fifo_playlist_update(struct nv50_fifo_priv *priv)
{
mutex_lock(&nv_subdev(priv)->mutex);
nv50_fifo_playlist_update_locked(priv);
mutex_unlock(&nv_subdev(priv)->mutex);
}
@ -489,7 +495,7 @@ nv50_fifo_init(struct nouveau_object *object)
for (i = 0; i < 128; i++)
nv_wr32(priv, 0x002600 + (i * 4), 0x00000000);
nv50_fifo_playlist_update(priv);
nv50_fifo_playlist_update_locked(priv);
nv_wr32(priv, 0x003200, 0x00000001);
nv_wr32(priv, 0x003250, 0x00000001);