[RFC 4/4] drm: Add NVIDIA Tegra support

Alan Cox alan at lxorguk.ukuu.org.uk
Wed Apr 11 07:43:09 PDT 2012

> 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....


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