[net-next-2.6.git] / arch / parisc / include / asm / scatterlist.h

#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 */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_PARISC_SCATTERLIST_H
	2	#define _ASM_PARISC_SCATTERLIST_H
	3
	4	#include <asm/page.h>
a9dfd281	5	#include <asm/types.h>
1da177e4 LT	6
1da177e4 LT	7	struct scatterlist {
d6ec0842 JA	8	#ifdef CONFIG_DEBUG_SG
	9	unsigned long sg_magic;
	10	#endif
18dabf47	11	unsigned long page_link;
1da177e4 LT	12	unsigned int offset;
	13
	14	unsigned int length;
	15
	16	/* an IOVA can be 64-bits on some PA-Risc platforms. */
	17	dma_addr_t iova; /* I/O Virtual Address */
	18	__u32 iova_length; /* bytes mapped */
	19	};
	20
b61e8f48	21	#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))
1da177e4 LT	22	#define sg_dma_address(sg) ((sg)->iova)
	23	#define sg_dma_len(sg) ((sg)->iova_length)
	24
	25	#define ISA_DMA_THRESHOLD (~0UL)
	26
	27	#endif /* _ASM_PARISC_SCATTERLIST_H */