[Intel-gfx] [David Woodhouse] [Fwd: [2.6.32 PATCH] agp/intel-agp: Clear entire GTT on startup]

[Keith Packard]

On Thu, 3 Dec 2009 10:29:49 +0800, Zhenyu Wang <zhenyuw at linux.intel.com> wrote:

> Wow, this really does the trick! Tested on my G45, except the DMAR
> fault happens in boot even before intel-agp loading, I can't produce
> another fault in X any more. Hopefully this resolves all left issue with
> broken bioses.

It isn't perfect; there are still bugs which make it seem as if someone
is loading a physical address into the GTT, although we've gone over the
code several times and haven't found any obvious way that the GTT could
get a non virtual address.

-- 
keith.packard at intel.com
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