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(parent: 3f8c65d) | patch
drm/i915: Access to snooped system memory through the GTT is incoherent
authorChris Wilson <chris@chris-wilson.co.uk>
Sun, 16 Dec 2012 12:43:36 +0000 (12:43 +0000)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 17 Dec 2012 11:28:23 +0000 (12:28 +0100)
commiteb119bd612906519cacef2536a9a524c2da5f7fb
tree946f3e2f589c6bf09b2200c7dfe7de0fbcb59667tree | snapshot
parent3f8c65d60467c6ccf4d690f5266567d6c423ae7dcommit | diff
drm/i915: Access to snooped system memory through the GTT is incoherent

We ignore all the user requests to handle flushing to the GTT domain if
the user requests such on a snoopable bo, and as such access through the
GTT to such pages remains incoherent. The specs even warn that such
behaviour is undefined - a strong reason never to do so.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_gem.c diff | blob | history
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