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

From: Alan Cox
Date: Thu Mar 17 2005 - 08:57:32 EST


On Iau, 2005-03-17 at 09:34, Paul Mackerras wrote:
> This code needs real physical addresses, which are not the same things
> as bus addresses.

Not always. The code needs platform specific goodies. We've only never
been burned so far because there isn't a box with an IOMMU and AGPGART
where one maps through the other.

It's probably simplest to have phys_to_agp/agp_to_phys therefore ?

Alan

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