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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-parisc/scatterlist.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
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-parisc/scatterlist.h')
-rw-r--r-- | include/asm-parisc/scatterlist.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/asm-parisc/scatterlist.h b/include/asm-parisc/scatterlist.h new file mode 100644 index 000000000000..236c1d0fba33 --- /dev/null +++ b/include/asm-parisc/scatterlist.h @@ -0,0 +1,23 @@ +#ifndef _ASM_PARISC_SCATTERLIST_H +#define _ASM_PARISC_SCATTERLIST_H + +#include <asm/page.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 */ |