On Fri, Mar 03, 2017 at 06:03:34PM +0000, Matthew Auld wrote:
> It looks like we were incorrectly comparing vma->node against itself
> instead of the target node, when evicting for a node on systems where we
> need guard pages between regions with different cache domains. As a
> consequence we can end up trying to needlessly evict neighbouring nodes,
> even if they have the same cache domain, and if they were pinned we
> would fail the eviction.
>
> Fixes: 625d988acc28 ("drm/i915: Extract reserving space in the GTT to a helper")
> Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> /o\
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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