drm/nvc0/fifo: use runlist event instead of polling
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
index 97416c6..d396516 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
@@ -96,8 +96,10 @@
nv_wr32(priv, 0x002270, cur->addr >> 12);
nv_wr32(priv, 0x002274, 0x01f00000 | (p >> 3));
- if (!nv_wait(priv, 0x00227c, 0x00100000, 0x00000000))
- nv_error(priv, "runlist update failed\n");
+ if (wait_event_timeout(priv->runlist.wait,
+ !(nv_rd32(priv, 0x00227c) & 0x00100000),
+ msecs_to_jiffies(2000)) == 0)
+ nv_error(priv, "runlist update timeout\n");
mutex_unlock(&nv_subdev(priv)->mutex);
}