<commit_before>#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);
<commit_msg>[PATCH] m68k: dma API addition<commit_after>#ifndef _M68K_DMA_MAPPING_H
#define _M68K_DMA_MAPPING_H

#include <asm/cache.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;
}

static inline int dma_get_cache_alignment(void)
{
	return 1 << L1_CACHE_SHIFT;
}

static inline int dma_is_consistent(dma_addr_t dma_addr)
{
	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);

static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
					  dma_addr_t *handle, int flag)
{
	return dma_alloc_coherent(dev, size, handle, flag);
}
static inline void dma_free_noncoherent(struct device *dev, size_t size,
					void *addr, dma_addr_t handle)
{
	dma_free_coherent(dev, size, addr, handle);
}
static inline void dma_cache_sync(void *vaddr, size_t size,
				  enum dma_data_direction dir)
{
	/* we use coherent allocation, so not much to do here. */
}

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);

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