diff options
| author |   Mitchel Humpherys <mitchelh@codeaurora.org> | 2017-01-06 18:58:12 +0530 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2017-01-19 15:56:19 +0000 |
| commit | 737c85ca1c3af4f97acb61cd53415ec039b31111 (patch) | |
| tree | 84935d1f5fbf6eb5501583f739b651c261742363 /include/linux/dma-iommu.h | |
| parent | common: DMA-mapping: add DMA_ATTR_PRIVILEGED attribute (diff) | |
| download | linux-dev-737c85ca1c3af4f97acb61cd53415ec039b31111.tar.xz linux-dev-737c85ca1c3af4f97acb61cd53415ec039b31111.zip | |
arm64/dma-mapping: Implement DMA_ATTR_PRIVILEGED
The newly added DMA_ATTR_PRIVILEGED is useful for creating mappings that
are only accessible to privileged DMA engines. Implement it in
dma-iommu.c so that the ARM64 DMA IOMMU mapper can make use of it.
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'include/linux/dma-iommu.h')
| -rw-r--r-- | include/linux/dma-iommu.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 7f7e9a7e3839..c5511e1d5560 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -34,7 +34,8 @@ int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, u64 size, struct device *dev); /* General helpers for DMA-API <-> IOMMU-API interaction */ -int dma_direction_to_prot(enum dma_data_direction dir, bool coherent); +int dma_info_to_prot(enum dma_data_direction dir, bool coherent, + unsigned long attrs); /* * These implement the bulk of the relevant DMA mapping callbacks, but require |