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xtensa: use use asm-generic/scatterlist.h

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Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
FUJITA Tomonori 2010-05-26 14:44:41 -07:00 committed by Linus Torvalds
parent d904c5bf8f
commit 6ba6867111
1 changed files with 1 additions and 22 deletions
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23
arch/xtensa/include/asm/scatterlist.h
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@ -11,28 +11,7 @@
#ifndef _XTENSA_SCATTERLIST_H
#define _XTENSA_SCATTERLIST_H
#include <asm/types.h>
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
unsigned long sg_magic;
#endif
unsigned long page_link;
unsigned int offset;
dma_addr_t dma_address;
unsigned int length;
};
/*
* These macros should be used after a pci_map_sg call has been done
* to get bus addresses of each of the SG entries and their lengths.
* You should only work with the number of sg entries pci_map_sg
* returns, or alternatively stop on the first sg_dma_len(sg) which
* is 0.
*/
#define sg_dma_address(sg) ((sg)->dma_address)
#define sg_dma_len(sg) ((sg)->length)
#include <asm-generic/scatterlist.h>
#define ISA_DMA_THRESHOLD (~0UL)