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drm/nve0/fifo: use runlist event instead of polling 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-02-23 23:27:25 +10:00
parent 87032e11d9
commit 5c0633e6ee
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
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@ -118,7 +118,9 @@ nve0_fifo_runlist_update(struct nve0_fifo_priv *priv, u32 engine)
nv_wr32(priv, 0x002270, cur->addr >> 12);
nv_wr32(priv, 0x002274, (engine << 20) | (p >> 3));
if (!nv_wait(priv, 0x002284 + (engine * 8), 0x00100000, 0x00000000))
if (wait_event_timeout(engn->wait, !(nv_rd32(priv, 0x002284 +
(engine * 0x08)) & 0x00100000),
msecs_to_jiffies(2000)) == 0)
nv_error(priv, "runlist %d update timeout\n", engine);
mutex_unlock(&nv_subdev(priv)->mutex);
}