diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2016-11-14 12:16:26 +0000 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-11-14 16:58:36 +0100 |
| commit | 51f8cc9e818a9e6df376db7aeb5822d43e58cfb3 (patch) | |
| tree | e894f2534f0f8fc079d82cf410aba8d92d280e9c /include/linux/dma-iommu.h | |
| parent | bc33b0ca11e3df467777a4fa7639ba488c9d4911 (diff) | |
iommu/dma: Implement dma_{map,unmap}_resource()
With the new dma_{map,unmap}_resource() functions added to the DMA API
for the benefit of cases like slave DMA, add suitable implementations to
the arsenal of our generic layer. Since cache maintenance should not be
a concern, these can both be standalone callback implementations without
the need for arch code wrappers.
CC: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/dma-iommu.h')
| -rw-r--r-- | include/linux/dma-iommu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 32c589062bd9..7f7e9a7e3839 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -61,6 +61,10 @@ void iommu_dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size, enum dma_data_direction dir, unsigned long attrs); void iommu_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, unsigned long attrs); +dma_addr_t iommu_dma_map_resource(struct device *dev, phys_addr_t phys, + size_t size, enum dma_data_direction dir, unsigned long attrs); +void iommu_dma_unmap_resource(struct device *dev, dma_addr_t handle, + size_t size, enum dma_data_direction dir, unsigned long attrs); int iommu_dma_supported(struct device *dev, u64 mask); int iommu_dma_mapping_error(struct device *dev, dma_addr_t dma_addr); |