> What I had in mind is an interface that given a PCI bridge will tell > you what's the most restrictive DMA mask for a device on that bridge, > so that you'll know whether you need to enable the IOMMU for that > bridge. I'll even settle for a function that tells you what's the most > restrictive DMA mask in the system, preiod. There's nothing inherently > arch specific about this. > > (and as a side note, the IOMMU we are working on on x86-64 is Calgary, > which is actually roughly the same chipset used in some PPC > machines...) Not sure I ever heard about that... What chipsets ? Ben. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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