diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-x86_64/scatterlist.h | |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-x86_64/scatterlist.h')
| -rw-r--r-- | include/asm-x86_64/scatterlist.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/asm-x86_64/scatterlist.h b/include/asm-x86_64/scatterlist.h new file mode 100644 index 000000000000..49d89f8129cd --- /dev/null +++ b/include/asm-x86_64/scatterlist.h @@ -0,0 +1,22 @@ +#ifndef _X8664_SCATTERLIST_H +#define _X8664_SCATTERLIST_H + +struct scatterlist { + struct page *page; + unsigned int offset; + unsigned int length; + dma_addr_t dma_address; + unsigned int dma_length; +}; + +#define ISA_DMA_THRESHOLD (0x00ffffff) + +/* These macros should be used after a pci_map_sg call has been done + * to get bus addresses of each of the SG entries and their lengths. + * You should only work with the number of sg entries pci_map_sg + * returns. + */ +#define sg_dma_address(sg) ((sg)->dma_address) +#define sg_dma_len(sg) ((sg)->dma_length) + +#endif |