> Sure, but the IA64 platforms that are out now doesn't have an IOMMU, so bounce buffers are
> used if you don't specify GFP_DMA in your get_free_page.
> (pci_alloc_consistent() allocates a buffer with GFP_DMA on IA64),
The important thing is that pci_alloc_consistent and the other PCI DMA
functions work as advertised on IA64. If you pass NULL to
pci_alloc_consistent, IA64 should give you an ISA DMA-able address. If
you don't, you get a 32-bit PCI DMA address. Use of GFP_DMA is a
arch-specific detail, so don't let me confuse you there.
-- Jeff Garzik | A recent study has shown that too much soup Building 1024 | can cause malaise in laboratory mice. MandrakeSoft | - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to firstname.lastname@example.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/