| #ifndef _ASM_PARISC_SCATTERLIST_H |
| #define _ASM_PARISC_SCATTERLIST_H |
| |
| #include <asm/page.h> |
| #include <asm/types.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 */ |
