Messages in this thread | | | Subject | Re: IOMMU and graphics cards | From | David Woodhouse <> | Date | Mon, 06 Jul 2009 15:18:52 +0100 |
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On Mon, 2009-07-06 at 15:11 +0200, Joerg Roedel wrote: > Ok, cool, that sounds good. Which in-kernel DRM drivers break with IOMMU > for you? I'll may probably add a similar temporary workaround for AMD > IOMMU too...
The Intel one definitely broke -- I don't know about the others. There are some old patches at http://people.freedesktop.org/~zhen/agp-mm-* which make it look like _all_ AGP drivers are broken.
I wouldn't bother adding the workaround -- as I said, I'm planning to rip it out of 2.6.32 (and in linux-next as soon as it's reasonable to do so). Let's just let them fix it.
-- David Woodhouse Open Source Technology Centre David.Woodhouse@intel.com Intel Corporation
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