mirror of
https://github.com/edk2-porting/linux-next.git
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1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
23 lines
592 B
C
23 lines
592 B
C
#ifndef _X8664_SCATTERLIST_H
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#define _X8664_SCATTERLIST_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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unsigned int length;
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dma_addr_t dma_address;
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unsigned int dma_length;
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};
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#define ISA_DMA_THRESHOLD (0x00ffffff)
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/* These macros should be used after a pci_map_sg call has been done
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* to get bus addresses of each of the SG entries and their lengths.
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* You should only work with the number of sg entries pci_map_sg
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* returns.
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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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#endif
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