mirror of
https://github.com/torvalds/linux.git
synced 2024-11-18 10:01:43 +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>
26 lines
465 B
C
26 lines
465 B
C
#ifndef _ALPHA_SCATTERLIST_H
|
|
#define _ALPHA_SCATTERLIST_H
|
|
|
|
#include <asm/page.h>
|
|
#include <asm/types.h>
|
|
|
|
struct scatterlist {
|
|
#ifdef CONFIG_DEBUG_SG
|
|
unsigned long sg_magic;
|
|
#endif
|
|
unsigned long page_link;
|
|
unsigned int offset;
|
|
|
|
unsigned int length;
|
|
|
|
dma_addr_t dma_address;
|
|
__u32 dma_length;
|
|
};
|
|
|
|
#define sg_dma_address(sg) ((sg)->dma_address)
|
|
#define sg_dma_len(sg) ((sg)->dma_length)
|
|
|
|
#define ISA_DMA_THRESHOLD (~0UL)
|
|
|
|
#endif /* !(_ALPHA_SCATTERLIST_H) */
|