linux/include/asm-m68k/scatterlist.h
Jens Axboe d6ec084200 Add CONFIG_DEBUG_SG sg validation
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>
2007-10-22 21:20:03 +02:00

23 lines
507 B
C

#ifndef _M68K_SCATTERLIST_H
#define _M68K_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 dma_address; /* A place to hang host-specific addresses at. */
};
/* This is bogus and should go away. */
#define ISA_DMA_THRESHOLD (0x00ffffff)
#define sg_dma_address(sg) ((sg)->dma_address)
#define sg_dma_len(sg) ((sg)->length)
#endif /* !(_M68K_SCATTERLIST_H) */