linux-stable-rt/include/asm-m68k/dma-mapping.h

64 lines
1.7 KiB
C
Raw Normal View History

#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 */