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After moving the the include files there were a few clean-ups: 1) Some files used #include <asm-ia64/xyz.h>, changed to <asm/xyz.h> 2) Some comments alerted maintainers to look at various header files to make matching updates if certain code were to be changed. Updated these comments to use the new include paths. 3) Some header files mentioned their own names in initial comments. Just deleted these self references. Signed-off-by: Tony Luck <tony.luck@intel.com>
38 lines
985 B
C
38 lines
985 B
C
#ifndef _ASM_IA64_SCATTERLIST_H
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#define _ASM_IA64_SCATTERLIST_H
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/*
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* Modified 1998-1999, 2001-2002, 2004
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* David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
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*/
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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; /* buffer 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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/*
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* It used to be that ISA_DMA_THRESHOLD had something to do with the
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* DMA-limits of ISA-devices. Nowadays, its only remaining use (apart
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* from the aha1542.c driver, which isn't 64-bit clean anyhow) is to
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* tell the block-layer (via BLK_BOUNCE_ISA) what the max. physical
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* address of a page is that is allocated with GFP_DMA. On IA-64,
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* that's 4GB - 1.
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*/
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#define ISA_DMA_THRESHOLD 0xffffffff
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#define sg_dma_len(sg) ((sg)->dma_length)
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#define sg_dma_address(sg) ((sg)->dma_address)
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#define ARCH_HAS_SG_CHAIN
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#endif /* _ASM_IA64_SCATTERLIST_H */
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