Re: [PATCH] iommu/intel: disable DMAR for g4x integrated gfx
From: David Woodhouse
Date: Mon Jan 21 2013 - 14:03:38 EST
On Sun, 2013-01-20 at 23:50 +0100, Daniel Vetter wrote:
> DMAR support on g4x/gm45 integrated gpus seems to be totally busted.
> So don't bother, but instead disable it by default to allow distros to
> unconditionally enable DMAR support.
Acked-By: David Woodhouse <David.Woodhouse@xxxxxxxxx>
It *really* winds me up that we never bother to test this hardware
before we ship it.
But I'm even *more* disappointed that we can't even diagnose it and
publish coherent errata *after* the fact. I'd really like to see each
quirk which disables features referencing a specific published erratum.
We really ought to be able to manage at least *that* much.
Rajesh?
--
dwmw2
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