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authorBen Widawsky <ben@bwidawsk.net>2011-10-17 15:51:55 -0700
committerKeith Packard <keithp@keithp.com>2011-10-20 15:26:39 -0700
commit5c0422878fcdc279ae9a8e8b66972a15b5efb67f (patch)
tree13ed982427828e6a031dd5fd642f25b15c300d63 /arch/mn10300
parentf372b85463dac2fc696443d4c5063db2af5dcead (diff)
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drm/i915: ILK + VT-d workaround
Idle the GPU before doing any unmaps. We know if VT-d is in use through an exported variable from iommu code. This should avoid a known HW issue. Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Keith Packard <keithp@keithp.com>
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