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authorChristoph Hellwig <hch@lst.de>2018-09-08 11:22:43 +0200
committerChristoph Hellwig <hch@lst.de>2018-09-20 09:01:15 +0200
commitbc3ec75de5452db59b683487867ba562b950708a (patch)
treead93be8bbaea3429f83fb0afd6b7597ec90a1e7b /include/asm-generic/dma-mapping.h
parentdma-mapping: move the dma_coherent flag to struct device (diff)
downloadlinux-dev-bc3ec75de5452db59b683487867ba562b950708a.tar.xz
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dma-mapping: merge direct and noncoherent ops
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
Diffstat (limited to '')
-rw-r--r--include/asm-generic/dma-mapping.h9
1 files changed, 0 insertions, 9 deletions
diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h
index ad2868263867..880a292d792f 100644
--- a/include/asm-generic/dma-mapping.h
+++ b/include/asm-generic/dma-mapping.h
@@ -4,16 +4,7 @@
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- /*
- * Use the non-coherent ops if available. If an architecture wants a
- * more fine-grained selection of operations it will have to implement
- * get_arch_dma_ops itself or use the per-device dma_ops.
- */
-#ifdef CONFIG_DMA_NONCOHERENT_OPS
- return &dma_noncoherent_ops;
-#else
return &dma_direct_ops;
-#endif
}
#endif /* _ASM_GENERIC_DMA_MAPPING_H */