Hi all, Here's an update of my previous RFC[1] in preparation for hooking the IOVA allocator up to the arm64 DMA mapping API, rebased onto 3.19-rc3.
I tried rebasing patches 3 and 4 onto Sakari's RFC series[2] (the merge conflict is pretty trivial), however I found that series applied to rc3 causes a build error in intel-iommu.c. Thus for now I've left in my simpler patches 1 and 2 for breaking out the library. Hopefully we can reach some consensus on that. Tested on arm64 (DMA mapping series coming soon), and compile-tested for x86_64_defconfig. Changes since RFC: Patch 1: Use a proper Kconfig symbol rather than a hack Patch 4: sanity check for powers of two also, and clarify the comment [1]:http://thread.gmane.org/gmane.linux.kernel.iommu/7480 [2]:http://thread.gmane.org/gmane.linux.kernel.iommu/7436 Robin Murphy (4): iommu: allow building iova.c independently iommu: consolidate IOVA allocator code iommu: make IOVA domain low limit flexible iommu: make IOVA domain page size explicit drivers/iommu/Kconfig | 4 ++++ drivers/iommu/Makefile | 3 ++- drivers/iommu/intel-iommu.c | 45 ++++++++++---------------------------- drivers/iommu/iova.c | 53 +++++++++++++++++++++++++++++++++++++++++---- include/linux/iova.h | 41 +++++++++++++++++++++++++++++++---- 5 files changed, 103 insertions(+), 43 deletions(-) -- 1.9.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
