2005-04-16 18:20:36 -04:00
|
|
|
#ifndef _ASM_PARISC_SCATTERLIST_H
|
|
|
|
|
#define _ASM_PARISC_SCATTERLIST_H
|
|
|
|
|
|
|
|
|
|
#include <asm/page.h>
|
2007-03-06 05:45:12 -05:00
|
|
|
#include <asm/types.h>
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
|
struct scatterlist {
|
|
|
|
|
struct page *page;
|
|
|
|
|
unsigned int offset;
|
|
|
|
|
|
|
|
|
|
unsigned int length;
|
|
|
|
|
|
|
|
|
|
/* an IOVA can be 64-bits on some PA-Risc platforms. */
|
|
|
|
|
dma_addr_t iova; /* I/O Virtual Address */
|
|
|
|
|
__u32 iova_length; /* bytes mapped */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#define sg_virt_addr(sg) ((unsigned long)(page_address(sg->page) + sg->offset))
|
|
|
|
|
#define sg_dma_address(sg) ((sg)->iova)
|
|
|
|
|
#define sg_dma_len(sg) ((sg)->iova_length)
|
|
|
|
|
|
|
|
|
|
#define ISA_DMA_THRESHOLD (~0UL)
|
|
|
|
|
|
|
|
|
|
#endif /* _ASM_PARISC_SCATTERLIST_H */
|
