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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>
23 lines
553 B
C
23 lines
553 B
C
#ifndef __ASM_CRIS_SCATTERLIST_H
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#define __ASM_CRIS_SCATTERLIST_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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char * address; /* Location data is to be transferred to */
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unsigned int length;
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/* The following is i386 highmem junk - not used by us */
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unsigned long page_link;
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unsigned int offset;/* for highmem, page offset */
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};
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#define sg_dma_address(sg) ((sg)->address)
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#define sg_dma_len(sg) ((sg)->length)
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/* i386 junk */
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#define ISA_DMA_THRESHOLD (0x1fffffff)
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#endif /* !(__ASM_CRIS_SCATTERLIST_H) */
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