Followup to: <[EMAIL PROTECTED]>
By author: [EMAIL PROTECTED] (Eric W. Biederman)
In newsgroup: linux.dev.kernel
>
> The AMD760 which looks like it might walk on both the alpha, an x86
> side of the fence also has an iommu. Mostly it's used for AGP but
> according to the docs it should be able to handle the other cases as
> well. The only downside is that it only supports 4GB of ram...
>
> Anyway we shouldn't assume iommu's don't exist on x86.
>
On most chips the AGP GART isn't just limited to AGP; it's a
full-fledged iommu. The main problem with it is that it is usually a
rather limited space it provides.
-hpa
--
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"Unix gives you enough rope to shoot yourself in the foot."
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