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drm/nvc0/fifo: prevent CHAN_TABLE_ERROR:CHANNEL_PENDING on fifo fini 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2013-05-13 11:09:59 +10:00
parent fadb171902
commit 9426eedb26
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
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@ -250,9 +250,17 @@ nvc0_fifo_chan_fini(struct nouveau_object *object, bool suspend)
struct nvc0_fifo_priv *priv = (void *)object->engine;
struct nvc0_fifo_chan *chan = (void *)object;
u32 chid = chan->base.chid;
u32 mask, engine;
nv_mask(priv, 0x003004 + (chid * 8), 0x00000001, 0x00000000);
nvc0_fifo_playlist_update(priv);
mask = nv_rd32(priv, 0x0025a4);
for (engine = 0; mask && engine < 16; engine++) {
if (!(mask & (1 << engine)))
continue;
nv_mask(priv, 0x0025a8 + (engine * 4), 0x00000000, 0x00000000);
mask &= ~(1 << engine);
}
nv_wr32(priv, 0x003000 + (chid * 8), 0x00000000);
return nouveau_fifo_channel_fini(&chan->base, suspend);