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7cf27cb416
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>
20 lines
449 B
C
20 lines
449 B
C
#ifndef _M68KNOMMU_SCATTERLIST_H
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#define _M68KNOMMU_SCATTERLIST_H
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#include <linux/mm.h>
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struct scatterlist {
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struct page *page;
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unsigned int offset;
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dma_addr_t dma_address;
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unsigned int length;
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};
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#define sg_address(sg) (page_address((sg)->page) + (sg)->offset
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#define sg_dma_address(sg) ((sg)->dma_address)
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#define sg_dma_len(sg) ((sg)->length)
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#define ISA_DMA_THRESHOLD (0xffffffff)
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#endif /* !(_M68KNOMMU_SCATTERLIST_H) */
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