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File: [Development] / linux-2.6-xfs / include / asm-arm / Attic / scatterlist.h (download)

Revision 1.3, Wed Jan 25 00:04:14 2006 UTC (11 years, 8 months ago) by cattelan
Branch: MAIN
Changes since 1.2: +0 -1 lines

Merge up to 2.6.16-rc1

#ifndef _ASMARM_SCATTERLIST_H
#define _ASMARM_SCATTERLIST_H

#include <asm/memory.h>
#include <asm/types.h>

struct scatterlist {
	struct page	*page;		/* buffer page			 */
	unsigned int	offset;		/* buffer offset		 */
	dma_addr_t	dma_address;	/* dma address			 */
	unsigned int	length;		/* 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 /* _ASMARM_SCATTERLIST_H */