tree 408518ff3565fb68cacc9ca137d2dc7bd28f577b
parent 3bf3f452362841404fe6d4589883f9471842ef8b
author Chris Wilson <chris@chris-wilson.co.uk> 1334393751 +0100
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1334738918 +0200

drm/i915: Always flush tiling changes before accessing through the GTT

As we defer updating the fence register from set-tiling to the point of
use, we need to declare every access through the GTT as either fenced or
unfenced.

This patches fixes an old bug in the execbuffer relocation processing
which could conceivably be hit by a pathological userspace.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>