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drm/nouveau: use dma.max rather than pushbuf size for checking GET validity

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Some upcoming G80 DMA changes will depend on this, but it's split out for
bisectibility just in case it causes some unexpected issues.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-01-08 10:53:40 +10:00 committed by Dave Airlie
parent cc6e496587
commit 400f14ac4e
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/nouveau/nouveau_dma.c
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@ -130,7 +130,7 @@ READ_GET(struct nouveau_channel *chan, uint32_t *get)
val = nvchan_rd32(chan, chan->user_get);
if (val < chan->pushbuf_base ||
val >= chan->pushbuf_base + chan->pushbuf_bo->bo.mem.size) {
val > chan->pushbuf_base + (chan->dma.max << 2)) {
/* meaningless to dma_wait() except to know whether the
* GPU has stalled or not
*/