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| author |   Christoph Hellwig <hch@lst.de> | 2018-08-23 09:39:38 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-09-20 09:01:17 +0200 |
| commit | 9406a49fd1f4379409ed87b29fdaa259b0441912 (patch) | |
| tree | b159725e0441d30234c84eb6b3a061e0788febb8 /include/linux/dma-mapping.h | |
| parent | dma-mapping: consolidate the dma mmap implementations (diff) | |
| download | linux-dev-9406a49fd1f4379409ed87b29fdaa259b0441912.tar.xz linux-dev-9406a49fd1f4379409ed87b29fdaa259b0441912.zip | |
dma-mapping: support non-coherent devices in dma_common_get_sgtable
We can use the arch_dma_coherent_to_pfn hook to provide a ->get_sgtable
implementation. Note that this isn't an endorsement of this interface
(which is a horrible bad idea), but it is required to move arm64 over
to the generic code without a loss of functionality.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index c3378d4e0d57..bd81e74cca7b 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -483,8 +483,8 @@ dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, #define dma_mmap_coherent(d, v, c, h, s) dma_mmap_attrs(d, v, c, h, s, 0) int -dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, - void *cpu_addr, dma_addr_t dma_addr, size_t size); +dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, void *cpu_addr, + dma_addr_t dma_addr, size_t size, unsigned long attrs); static inline int dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr, @@ -496,7 +496,8 @@ dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr, if (ops->get_sgtable) return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size, attrs); - return dma_common_get_sgtable(dev, sgt, cpu_addr, dma_addr, size); + return dma_common_get_sgtable(dev, sgt, cpu_addr, dma_addr, size, + attrs); } #define dma_get_sgtable(d, t, v, h, s) dma_get_sgtable_attrs(d, t, v, h, s, 0) |