forked from Minki/linux
cbd627a449
In order to be more consistent with other architectures, move two DMA-related scatterlist macros from pci.h to scatterlist.h. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
38 lines
1018 B
C
38 lines
1018 B
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* include/asm-sh64/scatterlist.h
|
|
*
|
|
* Copyright (C) 2003 Paul Mundt
|
|
*
|
|
*/
|
|
#ifndef __ASM_SH64_SCATTERLIST_H
|
|
#define __ASM_SH64_SCATTERLIST_H
|
|
|
|
#include <asm/types.h>
|
|
|
|
struct scatterlist {
|
|
#ifdef CONFIG_DEBUG_SG
|
|
unsigned long sg_magic;
|
|
#endif
|
|
unsigned long page_link;
|
|
unsigned int offset;/* for highmem, page 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)
|
|
|
|
#define ISA_DMA_THRESHOLD (0xffffffff)
|
|
|
|
#endif /* !__ASM_SH64_SCATTERLIST_H */
|