[deliverable/linux.git] / arch / arm / mm / dma.h

#ifndef DMA_H
#define DMA_H

#include <asm/glue-cache.h>

#ifndef MULTI_CACHE
#define dmac_map_area			__glue(_CACHE,_dma_map_area)
#define dmac_unmap_area 		__glue(_CACHE,_dma_unmap_area)

/*
 * These are private to the dma-mapping API.  Do not use directly.
 * Their sole purpose is to ensure that data held in the cache
 * is visible to DMA, or data written by DMA to system memory is
 * visible to the CPU.
 */
extern void dmac_map_area(const void *, size_t, int);
extern void dmac_unmap_area(const void *, size_t, int);

#else

/*
 * These are private to the dma-mapping API.  Do not use directly.
 * Their sole purpose is to ensure that data held in the cache
 * is visible to DMA, or data written by DMA to system memory is
 * visible to the CPU.
 */
#define dmac_map_area			cpu_cache.dma_map_area
#define dmac_unmap_area 		cpu_cache.dma_unmap_area

#endif

#endif
Commit	Line	Data
1234e3fd RK	1	#ifndef DMA_H
	2	#define DMA_H
	3
	4	#include <asm/glue-cache.h>
	5
	6	#ifndef MULTI_CACHE
	7	#define dmac_map_area __glue(_CACHE,_dma_map_area)
	8	#define dmac_unmap_area __glue(_CACHE,_dma_unmap_area)
	9
	10	/*
	11	* These are private to the dma-mapping API. Do not use directly.
	12	* Their sole purpose is to ensure that data held in the cache
	13	* is visible to DMA, or data written by DMA to system memory is
	14	* visible to the CPU.
	15	*/
	16	extern void dmac_map_area(const void *, size_t, int);
	17	extern void dmac_unmap_area(const void *, size_t, int);
	18
	19	#else
	20
	21	/*
	22	* These are private to the dma-mapping API. Do not use directly.
	23	* Their sole purpose is to ensure that data held in the cache
	24	* is visible to DMA, or data written by DMA to system memory is
	25	* visible to the CPU.
	26	*/
	27	#define dmac_map_area cpu_cache.dma_map_area
	28	#define dmac_unmap_area cpu_cache.dma_unmap_area
	29
	30	#endif
	31
	32	#endif