SPARC: sg chaining support
[linux-2.6.git] / include / asm-sparc / scatterlist.h
1 /* $Id: scatterlist.h,v 1.8 2001/12/17 07:05:15 davem Exp $ */
2 #ifndef _SPARC_SCATTERLIST_H
3 #define _SPARC_SCATTERLIST_H
4
5 #include <linux/types.h>
6
7 struct scatterlist {
8         struct page *page;
9         unsigned int offset;
10
11         unsigned int length;
12
13         __u32 dvma_address; /* A place to hang host-specific addresses at. */
14         __u32 dvma_length;
15 };
16
17 #define sg_dma_address(sg) ((sg)->dvma_address)
18 #define sg_dma_len(sg)     ((sg)->dvma_length)
19
20 #define ISA_DMA_THRESHOLD (~0UL)
21
22 #define ARCH_HAS_SG_CHAIN
23
24 #endif /* !(_SPARC_SCATTERLIST_H) */