Ar Maw, 2006-06-27 am 10:39 -0500, ysgrifennodd James Bottomley:
> On Tue, 2006-06-27 at 16:51 +0100, Alan Cox wrote:
> > On x86_64 the dma_addr_t and the ulong are both 64bit so the problem
> > doesn't arise.
>
> Yes it does ... apparently 32 bit kernel on x86_64 is a lot more common
> than people suppose. In > 4GB this is exactly PAE.
In your original mail you stated
"It probably is only significant on x86_64 with the gart iommu enabled."
IOMMU is only in the 64bit kernel that I can see.
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