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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 | |
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 */ |