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-ia64/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-ia64/scatterlist.h')
-rw-r--r-- | include/asm-ia64/scatterlist.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/asm-ia64/scatterlist.h b/include/asm-ia64/scatterlist.h new file mode 100644 index 000000000000..834a189ef189 --- /dev/null +++ b/include/asm-ia64/scatterlist.h | |||
@@ -0,0 +1,28 @@ | |||
1 | #ifndef _ASM_IA64_SCATTERLIST_H | ||
2 | #define _ASM_IA64_SCATTERLIST_H | ||
3 | |||
4 | /* | ||
5 | * Modified 1998-1999, 2001-2002, 2004 | ||
6 | * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co | ||
7 | */ | ||
8 | |||
9 | struct scatterlist { | ||
10 | struct page *page; | ||
11 | unsigned int offset; | ||
12 | unsigned int length; /* buffer length */ | ||
13 | |||
14 | dma_addr_t dma_address; | ||
15 | unsigned int dma_length; | ||
16 | }; | ||
17 | |||
18 | /* | ||
19 | * It used to be that ISA_DMA_THRESHOLD had something to do with the | ||
20 | * DMA-limits of ISA-devices. Nowadays, its only remaining use (apart | ||
21 | * from the aha1542.c driver, which isn't 64-bit clean anyhow) is to | ||
22 | * tell the block-layer (via BLK_BOUNCE_ISA) what the max. physical | ||
23 | * address of a page is that is allocated with GFP_DMA. On IA-64, | ||
24 | * that's 4GB - 1. | ||
25 | */ | ||
26 | #define ISA_DMA_THRESHOLD 0xffffffff | ||
27 | |||
28 | #endif /* _ASM_IA64_SCATTERLIST_H */ | ||