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

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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>

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Chris Wilson 2012-04-14 09:55:51 +01:00 • committed by Daniel Vetter

parent 3bf3f45236

commit 7b09638f45

1 changed files with 5 additions and 1 deletions

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drivers/gpu/drm/i915/i915_gem_execbuffer.c

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