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#ifndef _ASM_PARISC_SCATTERLIST_H
#define _ASM_PARISC_SCATTERLIST_H
#include <asm/page.h>
struct scatterlist {
struct page *page;
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)(page_address(sg->page) + sg->offset))
#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 */
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