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[PATCH] m68knommu: implement scatter/gather support macros

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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>
This commit is contained in:
Greg Ungerer 2005-09-13 11:14:08 +10:00 committed by Linus Torvalds
parent 962d69ed6f
commit 7cf27cb416
1 changed files with 6 additions and 0 deletions
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6
include/asm-m68knommu/scatterlist.h
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@ -1,6 +1,8 @@
#ifndef _M68KNOMMU_SCATTERLIST_H
#define _M68KNOMMU_SCATTERLIST_H
#include <linux/mm.h>
struct scatterlist {
struct page *page;
unsigned int offset;
@ -8,6 +10,10 @@ struct scatterlist {
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) */