diff options
| -rw-r--r-- | arch/arm64/include/asm/dma-mapping.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index 3a4572ec327..76133f2e98f 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -131,6 +131,22 @@ static inline void dma_free_attrs(struct device *dev, size_t size, ops->free(dev, size, vaddr, dev_addr, attrs); } +static inline void *dma_alloc_writecombine(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) +{ + DEFINE_DMA_ATTRS(attrs); + dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs); + return dma_alloc_attrs(dev, size, dma_handle, flag, &attrs); +} + +static inline void dma_free_writecombine(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle) +{ + DEFINE_DMA_ATTRS(attrs); + dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs); + return dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs); +} + /* * There is no dma_cache_sync() implementation, so just return NULL here. */ |