[Intel-gfx] [PATCH 4/4] drm/i915: ILK + VT-d workaround

[Daniel Vetter]

On Mon, Oct 17, 2011 at 03:51:55PM -0700, Ben Widawsky wrote:
> 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 at bwidawsk.net>
> ---
Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48