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>
25 lines
465 B
C
25 lines
465 B
C
#ifndef _ALPHA_SCATTERLIST_H
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#define _ALPHA_SCATTERLIST_H
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#include <asm/page.h>
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#include <asm/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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dma_addr_t dma_address;
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__u32 dma_length;
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};
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#define sg_dma_address(sg) ((sg)->dma_address)
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#define sg_dma_len(sg) ((sg)->dma_length)
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#define ISA_DMA_THRESHOLD (~0UL)
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#endif /* !(_ALPHA_SCATTERLIST_H) */
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