mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 08:44:21 +08:00
a9dfd281a7
Most architectures' scatterlist.h use the type dma_addr_t, but omit to include <asm/types.h> which defines it. This could lead to build failures, so let's add the missing includes. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
25 lines
734 B
C
25 lines
734 B
C
#ifndef __ASM_SH_SCATTERLIST_H
|
|
#define __ASM_SH_SCATTERLIST_H
|
|
|
|
#include <asm/types.h>
|
|
|
|
struct scatterlist {
|
|
struct page * page; /* Location for highmem page, if any */
|
|
unsigned int offset;/* for highmem, page offset */
|
|
dma_addr_t dma_address;
|
|
unsigned int length;
|
|
};
|
|
|
|
#define ISA_DMA_THRESHOLD (0x1fffffff)
|
|
|
|
/* 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)
|
|
|
|
#endif /* !(__ASM_SH_SCATTERLIST_H) */
|