#ifndef _ASM_PARISC_SCATTERLIST_H
|
#ifndef _ASM_PARISC_SCATTERLIST_H
|
#define _ASM_PARISC_SCATTERLIST_H
|
#define _ASM_PARISC_SCATTERLIST_H
|
|
|
#include <asm/page.h>
|
#include <asm/page.h>
|
|
|
struct scatterlist {
|
struct scatterlist {
|
/* This will disappear in 2.5.x */
|
/* This will disappear in 2.5.x */
|
char *address;
|
char *address;
|
|
|
/* page/offset only valid if ADDRESS member is NULL.
|
/* page/offset only valid if ADDRESS member is NULL.
|
** Needed to support CONFIG_HIGHMEM on x386.
|
** Needed to support CONFIG_HIGHMEM on x386.
|
** I still think davem is a dork for forcing other
|
** I still think davem is a dork for forcing other
|
** arches to add this to 2.4.x. -ggg
|
** arches to add this to 2.4.x. -ggg
|
*/
|
*/
|
struct page *page;
|
struct page *page;
|
unsigned int offset;
|
unsigned int offset;
|
|
|
unsigned int length;
|
unsigned int length;
|
|
|
/* an IOVA can be 64-bits on some PA-Risc platforms. */
|
/* an IOVA can be 64-bits on some PA-Risc platforms. */
|
dma_addr_t iova; /* I/O Virtual Address */
|
dma_addr_t iova; /* I/O Virtual Address */
|
__u32 iova_length; /* bytes mapped */
|
__u32 iova_length; /* bytes mapped */
|
};
|
};
|
|
|
#define sg_virt_addr(sg) (((sg)->address) ? ((sg)->address) : \
|
#define sg_virt_addr(sg) (((sg)->address) ? ((sg)->address) : \
|
(page_address((sg)->page) + (sg)->offset))
|
(page_address((sg)->page) + (sg)->offset))
|
|
|
#define sg_dma_address(sg) ((sg)->iova)
|
#define sg_dma_address(sg) ((sg)->iova)
|
#define sg_dma_len(sg) ((sg)->iova_length)
|
#define sg_dma_len(sg) ((sg)->iova_length)
|
|
|
#define ISA_DMA_THRESHOLD (~0UL)
|
#define ISA_DMA_THRESHOLD (~0UL)
|
|
|
#endif /* _ASM_PARISC_SCATTERLIST_H */
|
#endif /* _ASM_PARISC_SCATTERLIST_H */
|
|
|
