From: Will Davis <wda...@nvidia.com> Hi,
This is a second attempt at adding the DMA APIs necessary to map and unmap a struct resource to and from a PCI device's IOVA domain. This allows a PCI device to access a peer device's BAR resource when a hardware IOMMU is enabled. Thanks, Will Changelog: v2: - added documentation for the new DMA APIs - fixed physical-to-bus address conversion in the nommu implementation v1: http://www.spinics.net/lists/linux-pci/msg40747.html Will Davis (7): dma-debug: add checking for map/unmap_resource DMA-API: Introduce dma_(un)map_resource dma-mapping: pci: add pci_(un)map_resource DMA-API: Add dma_(un)map_resource() documentation iommu/amd: Implement (un)map_resource iommu/vt-d: implement (un)map_resource x86: add pci-nommu implementation of map_resource Documentation/DMA-API-HOWTO.txt | 39 +++++++++++++++- Documentation/DMA-API.txt | 36 ++++++++++++--- arch/x86/kernel/pci-nommu.c | 32 ++++++++++++++ drivers/iommu/amd_iommu.c | 76 ++++++++++++++++++++++++++------ drivers/iommu/intel-iommu.c | 18 ++++++++ include/asm-generic/dma-mapping-broken.h | 9 ++++ include/asm-generic/dma-mapping-common.h | 34 ++++++++++++++ include/asm-generic/pci-dma-compat.h | 14 ++++++ include/linux/dma-debug.h | 20 +++++++++ include/linux/dma-mapping.h | 7 +++ lib/dma-debug.c | 47 ++++++++++++++++++++ 11 files changed, 312 insertions(+), 20 deletions(-) -- 2.4.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
