| 331,47 → 331,15 |
|---|
| #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) |
| |
| |
| struct scatterlist { |
| unsigned long page_link; |
| unsigned int offset; |
| unsigned int length; |
| dma_addr_t dma_address; |
| unsigned int dma_length; |
| }; |
| |
| struct sg_table { |
| struct scatterlist *sgl; /* the list */ |
| unsigned int nents; /* number of mapped entries */ |
| unsigned int orig_nents; /* original size of list */ |
| }; |
| |
| #define SG_MAX_SINGLE_ALLOC (4096 / sizeof(struct scatterlist)) |
| |
| struct scatterlist *sg_next(struct scatterlist *sg); |
| |
| #define sg_dma_address(sg) ((sg)->dma_address) |
| #define sg_dma_len(sg) ((sg)->length) |
| |
| #define sg_is_chain(sg) ((sg)->page_link & 0x01) |
| #define sg_is_last(sg) ((sg)->page_link & 0x02) |
| #define sg_chain_ptr(sg) \ |
| ((struct scatterlist *) ((sg)->page_link & ~0x03)) |
| |
| static inline addr_t sg_page(struct scatterlist *sg) |
| { |
| return (addr_t)((sg)->page_link & ~0x3); |
| } |
| |
| #define for_each_sg(sglist, sg, nr, __i) \ |
| for (__i = 0, sg = (sglist); __i < (nr); __i++, sg = sg_next(sg)) |
| |
| |
| |
| struct page |
| { |
| unsigned int addr; |
| }; |
| |
| #define page_to_phys(page) ((dma_addr_t)(page)) |
| |
| struct vm_fault { |
| unsigned int flags; /* FAULT_FLAG_xxx flags */ |
| 390,5 → 358,9 |
|---|
| unsigned int nents; |
| }; |
| |
| #define page_cache_release(page) FreePage((addr_t)(page)) |
| |
| #define alloc_page(gfp_mask) (struct page*)AllocPage() |
| |
| #endif |
| |