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SubjectRe: [PATCH] Xen/i386 cleanups - AGP bus/phys cleanups
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On 16 Mar 2005, at 18:10, Christoph Hellwig wrote:

> On Wed, Mar 16, 2005 at 10:01:07AM -0500, Rik van Riel wrote:
>> In the case of AGP, the AGPGART effectively _is_ the
>> IOMMU. Calculating the addresses right for programming
>> the AGPGART is probably worth fixing.
>
> Well, it's a half-assed one. And some systems have a real one.
>
> But the real problem is that virt_to_bus doesn't exist at all
> on architectures like ppc64, and this patch touches files like
> generic.c and backend.c that aren't PC-specific. So you
> effectively break agp support for them.

The AGP driver is only configurable for ppc32, alpha, x86, x86_64 and
ia64, all of which have virt_to_bus.

-- Keir

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