mirror of
https://github.com/torvalds/linux.git
synced 2024-12-26 12:52:30 +00:00
d6ec084200
Add a Kconfig entry which will toggle some sanity checks on the sg entry and tables. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
28 lines
585 B
C
28 lines
585 B
C
/* $Id: scatterlist.h,v 1.8 2001/12/17 07:05:15 davem Exp $ */
|
|
#ifndef _SPARC_SCATTERLIST_H
|
|
#define _SPARC_SCATTERLIST_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct scatterlist {
|
|
#ifdef CONFIG_DEBUG_SG
|
|
unsigned long sg_magic;
|
|
#endif
|
|
unsigned long page_link;
|
|
unsigned int offset;
|
|
|
|
unsigned int length;
|
|
|
|
__u32 dvma_address; /* A place to hang host-specific addresses at. */
|
|
__u32 dvma_length;
|
|
};
|
|
|
|
#define sg_dma_address(sg) ((sg)->dvma_address)
|
|
#define sg_dma_len(sg) ((sg)->dvma_length)
|
|
|
|
#define ISA_DMA_THRESHOLD (~0UL)
|
|
|
|
#define ARCH_HAS_SG_CHAIN
|
|
|
|
#endif /* !(_SPARC_SCATTERLIST_H) */
|