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>
28 lines
585 B
C
28 lines
585 B
C
/* $Id: scatterlist.h,v 1.8 2001/12/17 07:05:15 davem Exp $ */
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#ifndef _SPARC_SCATTERLIST_H
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#define _SPARC_SCATTERLIST_H
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#include <linux/types.h>
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struct scatterlist {
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#ifdef CONFIG_DEBUG_SG
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unsigned long sg_magic;
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#endif
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unsigned long page_link;
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unsigned int offset;
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unsigned int length;
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__u32 dvma_address; /* A place to hang host-specific addresses at. */
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__u32 dvma_length;
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};
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#define sg_dma_address(sg) ((sg)->dvma_address)
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#define sg_dma_len(sg) ((sg)->dvma_length)
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#define ISA_DMA_THRESHOLD (~0UL)
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#define ARCH_HAS_SG_CHAIN
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#endif /* !(_SPARC_SCATTERLIST_H) */
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