[deliverable/linux.git] / include / asm-x86 / dma-mapping.h

#ifndef _ASM_DMA_MAPPING_H_
#define _ASM_DMA_MAPPING_H_

/*
 * IOMMU interface. See Documentation/DMA-mapping.txt and DMA-API.txt for
 * documentation.
 */

#include <linux/scatterlist.h>
#include <asm/io.h>
#include <asm/swiotlb.h>

struct dma_mapping_ops {
	int             (*mapping_error)(dma_addr_t dma_addr);
	void*           (*alloc_coherent)(struct device *dev, size_t size,
				dma_addr_t *dma_handle, gfp_t gfp);
	void            (*free_coherent)(struct device *dev, size_t size,
				void *vaddr, dma_addr_t dma_handle);
	dma_addr_t      (*map_single)(struct device *hwdev, void *ptr,
				size_t size, int direction);
	/* like map_single, but doesn't check the device mask */
	dma_addr_t      (*map_simple)(struct device *hwdev, char *ptr,
				size_t size, int direction);
	void            (*unmap_single)(struct device *dev, dma_addr_t addr,
				size_t size, int direction);
	void            (*sync_single_for_cpu)(struct device *hwdev,
				dma_addr_t dma_handle, size_t size,
				int direction);
	void            (*sync_single_for_device)(struct device *hwdev,
				dma_addr_t dma_handle, size_t size,
				int direction);
	void            (*sync_single_range_for_cpu)(struct device *hwdev,
				dma_addr_t dma_handle, unsigned long offset,
				size_t size, int direction);
	void            (*sync_single_range_for_device)(struct device *hwdev,
				dma_addr_t dma_handle, unsigned long offset,
				size_t size, int direction);
	void            (*sync_sg_for_cpu)(struct device *hwdev,
				struct scatterlist *sg, int nelems,
				int direction);
	void            (*sync_sg_for_device)(struct device *hwdev,
				struct scatterlist *sg, int nelems,
				int direction);
	int             (*map_sg)(struct device *hwdev, struct scatterlist *sg,
				int nents, int direction);
	void            (*unmap_sg)(struct device *hwdev,
				struct scatterlist *sg, int nents,
				int direction);
	int             (*dma_supported)(struct device *hwdev, u64 mask);
	int		is_phys;
};

#ifdef CONFIG_X86_32
# include "dma-mapping_32.h"
#else
# include "dma-mapping_64.h"
#endif

#endif
Commit	Line	Data
6f536635 GC	1	#ifndef _ASM_DMA_MAPPING_H_
	2	#define _ASM_DMA_MAPPING_H_
	3
	4	/*
	5	* IOMMU interface. See Documentation/DMA-mapping.txt and DMA-API.txt for
	6	* documentation.
	7	*/
	8
	9	#include <linux/scatterlist.h>
	10	#include <asm/io.h>
	11	#include <asm/swiotlb.h>
	12
	13	struct dma_mapping_ops {
	14	int (*mapping_error)(dma_addr_t dma_addr);
	15	void* (alloc_coherent)(struct device dev, size_t size,
	16	dma_addr_t *dma_handle, gfp_t gfp);
	17	void (free_coherent)(struct device dev, size_t size,
	18	void *vaddr, dma_addr_t dma_handle);
	19	dma_addr_t (map_single)(struct device hwdev, void *ptr,
	20	size_t size, int direction);
	21	/* like map_single, but doesn't check the device mask */
	22	dma_addr_t (map_simple)(struct device hwdev, char *ptr,
	23	size_t size, int direction);
	24	void (unmap_single)(struct device dev, dma_addr_t addr,
	25	size_t size, int direction);
	26	void (sync_single_for_cpu)(struct device hwdev,
	27	dma_addr_t dma_handle, size_t size,
	28	int direction);
	29	void (sync_single_for_device)(struct device hwdev,
	30	dma_addr_t dma_handle, size_t size,
	31	int direction);
	32	void (sync_single_range_for_cpu)(struct device hwdev,
	33	dma_addr_t dma_handle, unsigned long offset,
	34	size_t size, int direction);
	35	void (sync_single_range_for_device)(struct device hwdev,
	36	dma_addr_t dma_handle, unsigned long offset,
	37	size_t size, int direction);
	38	void (sync_sg_for_cpu)(struct device hwdev,
	39	struct scatterlist *sg, int nelems,
	40	int direction);
	41	void (sync_sg_for_device)(struct device hwdev,
	42	struct scatterlist *sg, int nelems,
	43	int direction);
	44	int (map_sg)(struct device hwdev, struct scatterlist *sg,
	45	int nents, int direction);
	46	void (unmap_sg)(struct device hwdev,
	47	struct scatterlist *sg, int nents,
	48	int direction);
	49	int (dma_supported)(struct device hwdev, u64 mask);
	50	int is_phys;
	51	};
	52
96a388de TG	53	#ifdef CONFIG_X86_32
	54	# include "dma-mapping_32.h"
	55	#else
	56	# include "dma-mapping_64.h"
	57	#endif
6f536635 GC	58
6f536635 GC	59	#endif