kernel-ark/include/asm-parisc/scatterlist.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

24 lines
569 B
C

#ifndef _ASM_PARISC_SCATTERLIST_H
#define _ASM_PARISC_SCATTERLIST_H
#include <asm/page.h>
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 */