Messages in this thread | | | Date | Mon, 23 Nov 2020 10:08:16 +0000 | From | Christoph Hellwig <> | Subject | Re: [PATCH v5 3/7] iommu: Allow the dma-iommu api to use bounce buffers |
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> + /* > + * If both the physical buffer start address and size are > + * page aligned, we don't need to use a bounce page. > + */ > + if (IS_ENABLED(CONFIG_SWIOTLB) && dev_is_untrusted(dev) && > + iova_offset(iovad, phys | org_size)) { > + aligned_size = iova_align(iovad, org_size); > + phys = swiotlb_tbl_map_single(dev, > + phys_to_dma(dev, io_tlb_start), > + phys, org_size, aligned_size, dir, attrs);
swiotlb_tbl_map_single takes one less argument in 5.10-rc now.
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