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Subjectimplement generic dma_map_ops for IOMMUs
Hi Robin,

please take a look at this series, which implements a completely generic
set of dma_map_ops for IOMMU drivers. This is done by taking the
existing arm64 code, moving it to drivers/iommu and then massaging it
so that it can also work for architectures with DMA remapping. This
should help future ports to support IOMMUs more easily, and also allow
to remove various custom IOMMU dma_map_ops implementations, like Tom
was planning to for the AMD one.

A git tree is also available at:

git:// dma-iommu-ops


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