linux/include/asm-m68knommu/scatterlist.h
Greg Ungerer 7cf27cb416 [PATCH] m68knommu: implement scatter/gather support macros
Implement the scattergather support macros for m68knommu targets.
Patch originally submitted by Leon Woestenberg <leonw@mailcan.com>.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 20:04:15 -07:00

19 lines
449 B
C

#ifndef _M68KNOMMU_SCATTERLIST_H
#define _M68KNOMMU_SCATTERLIST_H
#include <linux/mm.h>
struct scatterlist {
struct page *page;
unsigned int offset;
dma_addr_t dma_address;
unsigned int length;
};
#define sg_address(sg) (page_address((sg)->page) + (sg)->offset
#define sg_dma_address(sg) ((sg)->dma_address)
#define sg_dma_len(sg) ((sg)->length)
#define ISA_DMA_THRESHOLD (0xffffffff)
#endif /* !(_M68KNOMMU_SCATTERLIST_H) */