Re: [PATCH] Xen/i386 cleanups - AGP bus/phys cleanups

[Alan Cox]

On Mer, 2005-03-16 at 14:31, Christoph Hellwig wrote:
> It's bogus either way.  You must never use virt_to_phys or virt_to_bus
> for bus address.  For systems with an IOMMU there's no 1:1 mapping.

The AGPGART _is_ the IOMMU.

Alan

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