Add CONFIG_DEBUG_SG sg validation
[linux-2.6.git] / include / asm-sparc64 / scatterlist.h
1 /* $Id: scatterlist.h,v 1.11 2001/12/17 07:05:15 davem Exp $ */
2 #ifndef _SPARC64_SCATTERLIST_H
3 #define _SPARC64_SCATTERLIST_H
4
5 #include <asm/page.h>
6 #include <asm/types.h>
7
8 struct scatterlist {
9 #ifdef CONFIG_DEBUG_SG
10         unsigned long   sg_magic;
11 #endif
12         unsigned long   page_link;
13         unsigned int    offset;
14
15         unsigned int    length;
16
17         dma_addr_t      dma_address;
18         __u32           dma_length;
19 };
20
21 #define sg_dma_address(sg)      ((sg)->dma_address)
22 #define sg_dma_len(sg)          ((sg)->dma_length)
23
24 #define ISA_DMA_THRESHOLD       (~0UL)
25
26 #define ARCH_HAS_SG_CHAIN
27
28 #endif /* !(_SPARC64_SCATTERLIST_H) */