diff options
| author |   Christoph Hellwig <hch@lst.de> | 2018-04-17 22:02:10 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-08-02 13:54:11 +0200 |
| commit | a602915f5d0d9eff96a1d85b6f81e4921b52edfe (patch) | |
| tree | 471aa4a6431fea4aa2eff5ce7e677976b5f964bd /arch/sh/include/asm/dma-mapping.h | |
| parent | sh: introduce a sh_cacheop_vaddr helper (diff) | |
| download | linux-dev-a602915f5d0d9eff96a1d85b6f81e4921b52edfe.tar.xz linux-dev-a602915f5d0d9eff96a1d85b6f81e4921b52edfe.zip | |
sh: use dma_direct_ops for the CONFIG_DMA_COHERENT case
This is a slight change in behavior as we avoid the detour through the
virtual mapping for the coherent allocator, but if this CPU really is
coherent that should be the right thing to do.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Diffstat (limited to 'arch/sh/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/sh/include/asm/dma-mapping.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h index 149e71f95be7..1ebc6a4eb1c5 100644 --- a/arch/sh/include/asm/dma-mapping.h +++ b/arch/sh/include/asm/dma-mapping.h @@ -6,7 +6,11 @@ extern const struct dma_map_ops nommu_dma_ops; static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) { +#ifdef CONFIG_DMA_NONCOHERENT return &nommu_dma_ops; +#else + return &dma_direct_ops; +#endif } extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, |