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author | Christoph Hellwig <hch@lst.de> | 2017-08-27 10:37:15 +0200 |
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committer | Christoph Hellwig <hch@lst.de> | 2017-10-19 16:37:49 +0200 |
commit | c9eb6172c328dde7e14812f94f8da87b691e41b5 (patch) | |
tree | 5b27a749da30670bd6141f3f3b0ddb67d48e4520 /arch/powerpc/include/asm/dma-mapping.h | |
parent | e0c6584df9c414b50de17e1abc1099f7501bbb60 (diff) | |
download | linux-stable-c9eb6172c328dde7e14812f94f8da87b691e41b5.tar.gz linux-stable-c9eb6172c328dde7e14812f94f8da87b691e41b5.tar.bz2 linux-stable-c9eb6172c328dde7e14812f94f8da87b691e41b5.zip |
dma-mapping: turn dma_cache_sync into a dma_map_ops method
After we removed all the dead wood it turns out only two architectures
actually implement dma_cache_sync as a real op: mips and parisc. Add
a cache_sync method to struct dma_map_ops and implement it for the
mips defualt DMA ops, and the parisc pa11 ops.
Note that arm, arc and openrisc support DMA_ATTR_NON_CONSISTENT, but
never provided a functional dma_cache_sync implementations, which
seems somewhat odd.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch/powerpc/include/asm/dma-mapping.h')
-rw-r--r-- | arch/powerpc/include/asm/dma-mapping.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 320846442bfb..2e43c2ef7632 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -141,10 +141,5 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) #define ARCH_HAS_DMA_MMAP_COHERENT -static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, - enum dma_data_direction direction) -{ -} - #endif /* __KERNEL__ */ #endif /* _ASM_DMA_MAPPING_H */ |