On Mon, Dec 30, 2013 at 12:16:15PM +0000, Chris Wilson wrote: > The iommu and gfx on Ironlake do not like each other and require a > big hammer to prevent hard machine hangs. In > > commit 5c0422878fcdc279ae9a8e8b66972a15b5efb67f > Author: Ben Widawsky <ben@xxxxxxxxxxxx> > Date: Mon Oct 17 15:51:55 2011 -0700 > > drm/i915: ILK + VT-d workaround > > we added the workaround, but never emitted any debug message that it was > active. Doing so should help identify known performance regressions. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Reviewed-by: Ben Widawsky <ben@xxxxxxxxxxxx> [snip] -- Ben Widawsky, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
