On Wed, Apr 11, 2012 at 03:43:09PM +0100, Alan Cox wrote: > > Hm, in that case it looks like your iommu works more like the gtt on intel > > chips > > Don't overgeneralize there - on the GMA500/600 the GTT doesn't allow CPU > side access of the GTT map (ie you can't use it to linearise pages for > CPU view) and the 3600 is even stranger.... Sorry, I really try to totally ignore everything related to gma500 ;-) -Daniel -- Daniel Vetter Mail: daniel@xxxxxxxx Mobile: +41 (0)79 365 57 48 -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html