diff options
| author | Mitchel Humpherys <[email protected]> | 2017-01-06 18:58:12 +0530 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2017-01-19 15:56:19 +0000 |
| commit | 737c85ca1c3af4f97acb61cd53415ec039b31111 (patch) | |
| tree | 84935d1f5fbf6eb5501583f739b651c261742363 /include/linux | |
| parent | b2fb366425ceb85dca56afa538257ec5a2c4f6d1 (diff) | |
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 <[email protected]>
Tested-by: Robin Murphy <[email protected]>
Acked-by: Will Deacon <[email protected]>
Signed-off-by: Mitchel Humpherys <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'include/linux')
| -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 |