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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /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.h28
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
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+++ 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
9struct 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 */