diff options
Diffstat (limited to 'include/asm-x86/scatterlist_32.h')
-rw-r--r-- | include/asm-x86/scatterlist_32.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/asm-x86/scatterlist_32.h b/include/asm-x86/scatterlist_32.h new file mode 100644 index 00000000000..0e7d997a34b --- /dev/null +++ b/include/asm-x86/scatterlist_32.h @@ -0,0 +1,28 @@ +#ifndef _I386_SCATTERLIST_H +#define _I386_SCATTERLIST_H + +#include <asm/types.h> + +struct scatterlist { +#ifdef CONFIG_DEBUG_SG + unsigned long sg_magic; +#endif + unsigned long page_link; + unsigned int offset; + dma_addr_t dma_address; + unsigned int length; +}; + +#define ARCH_HAS_SG_CHAIN + +/* 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. + */ +#define sg_dma_address(sg) ((sg)->dma_address) +#define sg_dma_len(sg) ((sg)->length) + +#define ISA_DMA_THRESHOLD (0x00ffffff) + +#endif /* !(_I386_SCATTERLIST_H) */ |