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authorChristoph Hellwig <hch@lst.de>2017-08-27 10:37:15 +0200
committerChristoph Hellwig <hch@lst.de>2017-10-19 16:37:49 +0200
commitc9eb6172c328dde7e14812f94f8da87b691e41b5 (patch)
tree5b27a749da30670bd6141f3f3b0ddb67d48e4520 /drivers/base
parente0c6584df9c414b50de17e1abc1099f7501bbb60 (diff)
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>
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