[mirror_ubuntu-artful-kernel.git] / include / asm-ppc / scatterlist.h

#ifdef __KERNEL__
#ifndef _PPC_SCATTERLIST_H
#define _PPC_SCATTERLIST_H

#include <asm/dma.h>

struct scatterlist {
	struct page	*page;
	unsigned int	offset;
	dma_addr_t	dma_address;
	unsigned int	length;
};

/*
 * These macros should be used after a pci_map_sg call has been done
 * to get bus addresses of each of the SG entries and their lengths.
 * You should only work with the number of sg entries pci_map_sg
 * returns, or alternatively stop on the first sg_dma_len(sg) which
 * is 0.
 */
#define sg_dma_address(sg)      ((sg)->dma_address)
#define sg_dma_len(sg)          ((sg)->length)

#endif /* !(_PPC_SCATTERLIST_H) */
#endif /* __KERNEL__ */
Commit	Line	Data
1da177e4 LT	1	#ifdef __KERNEL__
	2	#ifndef _PPC_SCATTERLIST_H
	3	#define _PPC_SCATTERLIST_H
	4
	5	#include <asm/dma.h>
	6
	7	struct scatterlist {
	8	struct page *page;
	9	unsigned int offset;
	10	dma_addr_t dma_address;
	11	unsigned int length;
	12	};
	13
	14	/*
	15	* These macros should be used after a pci_map_sg call has been done
	16	* to get bus addresses of each of the SG entries and their lengths.
	17	* You should only work with the number of sg entries pci_map_sg
	18	* returns, or alternatively stop on the first sg_dma_len(sg) which
	19	* is 0.
	20	*/
	21	#define sg_dma_address(sg) ((sg)->dma_address)
	22	#define sg_dma_len(sg) ((sg)->length)
	23
	24	#endif /* !(_PPC_SCATTERLIST_H) */
	25	#endif /* __KERNEL__ */