On Thu, 2007-12-20 at 13:29 -0600, Steve Wise wrote: > Or based on the alignment of vaddr actually...
The later wouldn't be realistic. What I think might be necessay, though it would definitely cause us problems with running out of iommu space (which is the reason we did the switch down to 4K), is to provide alignment to the real page size, and alignement to the allocation order for dma_map_consistent. It might be possible to -tweak- and only provide alignment to the page size for allocations that are larger than IOMMU_PAGE_SIZE. That would solve the problem with small network packets eating up too much iommu space though. What do you think ? 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/
