kernel_optimize_test/include/asm-m68k/dma-mapping.h

#ifndef _M68K_DMA_MAPPING_H
#define _M68K_DMA_MAPPING_H

struct scatterlist;

static inline int dma_supported(struct device *dev, u64 mask)
{
	return 1;
}

static inline int dma_set_mask(struct device *dev, u64 mask)
{
	return 0;
}

extern void *dma_alloc_coherent(struct device *, size_t,
				dma_addr_t *, int);
extern void dma_free_coherent(struct device *, size_t,
			      void *, dma_addr_t);

extern dma_addr_t dma_map_single(struct device *, void *, size_t,
				 enum dma_data_direction);
static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
				    size_t size, enum dma_data_direction dir)
{
}

extern dma_addr_t dma_map_page(struct device *, struct page *,
			       unsigned long, size_t size,
			       enum dma_data_direction);
static inline void dma_unmap_page(struct device *dev, dma_addr_t address,
				  size_t size, enum dma_data_direction dir)
{
}

extern int dma_map_sg(struct device *, struct scatterlist *, int,
		      enum dma_data_direction);
static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
				int nhwentries, enum dma_data_direction dir)
{
}

extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t,
				       enum dma_data_direction);
extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int,
				   enum dma_data_direction);

static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
					   size_t size, enum dma_data_direction dir)
{
}

static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
				       int nents, enum dma_data_direction dir)
{
}

static inline int dma_mapping_error(dma_addr_t handle)
{
	return 0;
}

#endif  /* _M68K_DMA_MAPPING_H */