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dma-mapping: merge direct and noncoherent ops

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All the cache maintainance is already stubbed out when not enabled,
but merging the two allows us to nicely handle the case where
cache maintainance is required for some devices, but not others.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
This commit is contained in:
Christoph Hellwig
2018-09-08 11:22:43 +02:00
parent f3ecc0ff04
commit bc3ec75de5
29 changed files with 160 additions and 192 deletions
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include/linux/dma-mapping.h
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@@ -136,7 +136,6 @@ struct dma_map_ops {
};
extern const struct dma_map_ops dma_direct_ops;
extern const struct dma_map_ops dma_noncoherent_ops;
extern const struct dma_map_ops dma_virt_ops;
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))