On Tue, 11 Nov 2008, FUJITA Tomonori wrote: > Is it because it does some kinda address translation > (provider->dma_map_consistent) later? The zone flag is meaningless if > you do sorta address translation (e.g. hardware IOMMU like VT-d). Yes it can do address translation. Therefore a < 4G address can show up at any 64 bit address. So no need for a special DMA zone. The same is true for more x86_64 platforms that have an IOMMU. -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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