#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 */