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(parent: 159bf19) | patch
iommu: Explicitly skip bus address marked segments in __iommu_map_sg()
authorLogan Gunthorpe <logang@deltatee.com>
Fri, 8 Jul 2022 16:50:58 +0000 (10:50 -0600)
committerChristoph Hellwig <hch@lst.de>
Tue, 26 Jul 2022 11:27:48 +0000 (07:27 -0400)
commitc96321834b2f7aa442cf4c076f73d8273e622725
treeb248e071c6dfaf3d0eb8ac99f9d653abba98b076tree | snapshot
parent159bf19270e80b5bc4b13aa88072dcb390b4d297commit | diff
iommu: Explicitly skip bus address marked segments in __iommu_map_sg()

In order to support PCI P2PDMA mappings with dma-iommu, explicitly skip
any segments marked with sg_dma_mark_bus_address() in __iommu_map_sg().

These segments should not be mapped into the IOVA and will be handled
separately in as subsequent patch for dma-iommu.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
drivers/iommu/iommu.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git