diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-parisc/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-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 @@ | |||
1 | #ifndef _ASM_PARISC_SCATTERLIST_H | ||
2 | #define _ASM_PARISC_SCATTERLIST_H | ||
3 | |||
4 | #include <asm/page.h> | ||
5 | |||
6 | struct scatterlist { | ||
7 | struct page *page; | ||
8 | unsigned int offset; | ||
9 | |||
10 | unsigned int length; | ||
11 | |||
12 | /* an IOVA can be 64-bits on some PA-Risc platforms. */ | ||
13 | dma_addr_t iova; /* I/O Virtual Address */ | ||
14 | __u32 iova_length; /* bytes mapped */ | ||
15 | }; | ||
16 | |||
17 | #define sg_virt_addr(sg) ((unsigned long)(page_address(sg->page) + sg->offset)) | ||
18 | #define sg_dma_address(sg) ((sg)->iova) | ||
19 | #define sg_dma_len(sg) ((sg)->iova_length) | ||
20 | |||
21 | #define ISA_DMA_THRESHOLD (~0UL) | ||
22 | |||
23 | #endif /* _ASM_PARISC_SCATTERLIST_H */ | ||