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Revision 1.3, Thu May 24 16:41:45 2007 UTC (10 years, 5 months ago) by tes.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.2: +2 -0 lines 

Merge up to 2.6.22-rc2
Merge of 2.6.x-xfs-melb:linux:28675b by kenmcd.

#ifndef _X8664_SCATTERLIST_H
#define _X8664_SCATTERLIST_H

#include <asm/types.h>

struct scatterlist {
    struct page		*page;
    unsigned int	offset;
    unsigned int	length;
    dma_addr_t		dma_address;
    unsigned int        dma_length;
};

#define ISA_DMA_THRESHOLD (0x00ffffff)

/* These macros should be used after a pci_map_sg call has been done
 * to get bus addresses of each of the SG entries and their lengths.
 * You should only work with the number of sg entries pci_map_sg
 * returns.
 */
#define sg_dma_address(sg)     ((sg)->dma_address)
#define sg_dma_len(sg)         ((sg)->dma_length)

#endif