tree 8dbb4943c5bafc999421d395d8a1f656bbb35ca0
parent dbf7bff074d5fdc87c61b1b41d8e809109cf0bf8
author Daniel Vetter <daniel.vetter@ffwll.ch> 1332697650 +0200
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1332847185 +0200

drm: add helper to clflush a virtual address range

Useful when the page is already mapped to copy date in/out.

For -stable because the next patch (fixing phys obj pwrite) needs this
little helper function.

Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>