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

Revision 1.3, Mon Dec 3 16:26:37 2007 UTC (9 years, 10 months ago) by lachlan.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.2: +5 -2 lines 

Merge up to 2.6.24-rc3
Merge of 2.6.x-xfs-melb:linux:30183b by kenmcd.

#ifndef _ASM_PARISC_SCATTERLIST_H
#define _ASM_PARISC_SCATTERLIST_H

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

struct scatterlist {
#ifdef CONFIG_DEBUG_SG
	unsigned long sg_magic;
#endif
	unsigned long page_link;
	unsigned int offset;

	unsigned int length;

	/* an IOVA can be 64-bits on some PA-Risc platforms. */
	dma_addr_t iova;	/* I/O Virtual Address */
	__u32      iova_length; /* bytes mapped */
};

#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))
#define sg_dma_address(sg) ((sg)->iova)
#define sg_dma_len(sg)     ((sg)->iova_length)

#define ISA_DMA_THRESHOLD (~0UL)

#endif /* _ASM_PARISC_SCATTERLIST_H */