[Nouveau] [PATCH] drm/ttm: Fix race condition in ttm_bo_delayed_delete

Luca Barbieri luca at luca-barbieri.com
Thu Jan 21 08:30:33 PST 2010

> The card also keeps some internal FIFO caches, so it seems to me that
> getting that safe of races and efficient at the same time could be a bit
> non-trivial.

Are they flushable?
It seems this *might* do the job:
if (!pfifo->cache_flush(dev))
pfifo->reassign(dev, false);
pfifo->cache_pull(dev, false);

pfifo->cache_pull(dev, true);
pfifo->reassign(dev, true);

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