diff options
Diffstat (limited to 'arch/m32r/include/asm/dma-mapping.h')
-rw-r--r-- | arch/m32r/include/asm/dma-mapping.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h new file mode 100644 index 000000000000..c01d9f52d228 --- /dev/null +++ b/arch/m32r/include/asm/dma-mapping.h @@ -0,0 +1,30 @@ +#ifndef _ASM_M32R_DMA_MAPPING_H +#define _ASM_M32R_DMA_MAPPING_H + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/mm.h> +#include <linux/scatterlist.h> +#include <linux/dma-debug.h> +#include <linux/io.h> + +#define DMA_ERROR_CODE (~(dma_addr_t)0x0) + +static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) +{ + return &dma_noop_ops; +} + +static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, + enum dma_data_direction direction) +{ +} + +static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) +{ + if (!dev->dma_mask) + return false; + return addr + size - 1 <= *dev->dma_mask; +} + +#endif /* _ASM_M32R_DMA_MAPPING_H */ |