1 #ifndef _ASM_PARISC_SCATTERLIST_H
2 #define _ASM_PARISC_SCATTERLIST_H
13 /* an IOVA can be 64-bits on some PA-Risc platforms. */
14 dma_addr_t iova; /* I/O Virtual Address */
15 __u32 iova_length; /* bytes mapped */
18 #define sg_virt_addr(sg) ((unsigned long)(page_address(sg->page) + sg->offset))
19 #define sg_dma_address(sg) ((sg)->iova)
20 #define sg_dma_len(sg) ((sg)->iova_length)
22 #define ISA_DMA_THRESHOLD (~0UL)
24 #endif /* _ASM_PARISC_SCATTERLIST_H */