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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | #ifndef _I386_SCATTERLIST_H |
| 2 | #define _I386_SCATTERLIST_H |
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| 3 | |||
| 4 | struct scatterlist { |
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| 5 | struct page *page; |
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| 6 | unsigned int offset; |
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| 7 | dma_addr_t dma_address; |
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| 8 | unsigned int length; |
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| 9 | }; |
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| 10 | |||
| 11 | /* These macros should be used after a pci_map_sg call has been done |
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| 12 | * to get bus addresses of each of the SG entries and their lengths. |
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| 13 | * You should only work with the number of sg entries pci_map_sg |
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| 14 | * returns. |
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| 15 | */ |
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| 16 | #define sg_dma_address(sg) ((sg)->dma_address) |
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| 17 | #define sg_dma_len(sg) ((sg)->length) |
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| 18 | |||
| 19 | #define ISA_DMA_THRESHOLD (0x00ffffff) |
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| 20 | |||
| 21 | #endif /* !(_I386_SCATTERLIST_H) */ |