ARCH_HAS_DMA_MMAP_COHERENT indicates that there is dma_mmap_coherent() API in this architecture. The name is already defined in PowerPC.
Signed-off-by: Hideki EIRAKU hdk@igel.co.jp --- arch/arm/include/asm/dma-mapping.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index bbef15d..f41cd30 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -187,6 +187,7 @@ extern int arm_dma_mmap(struct device *dev, struct vm_area_struct *vma, struct dma_attrs *attrs);
#define dma_mmap_coherent(d, v, c, h, s) dma_mmap_attrs(d, v, c, h, s, NULL) +#define ARCH_HAS_DMA_MMAP_COHERENT
static inline int dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t dma_addr,