2008-06-18 11:08:48 -04:00
|
|
|
#ifndef ASM_X86__SCATTERLIST_H
|
|
|
|
|
#define ASM_X86__SCATTERLIST_H
|
2008-01-30 07:30:21 -05:00
|
|
|
|
|
|
|
|
#include <asm/types.h>
|
|
|
|
|
|
|
|
|
|
struct scatterlist {
|
|
|
|
|
#ifdef CONFIG_DEBUG_SG
|
|
|
|
|
unsigned long sg_magic;
|
|
|
|
|
#endif
|
|
|
|
|
unsigned long page_link;
|
|
|
|
|
unsigned int offset;
|
|
|
|
|
unsigned int length;
|
|
|
|
|
dma_addr_t dma_address;
|
|
|
|
|
unsigned int dma_length;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#define ARCH_HAS_SG_CHAIN
|
|
|
|
|
#define ISA_DMA_THRESHOLD (0x00ffffff)
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 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)
|
2007-10-11 05:20:03 -04:00
|
|
|
#ifdef CONFIG_X86_32
|
2008-01-30 07:30:21 -05:00
|
|
|
# define sg_dma_len(sg) ((sg)->length)
|
2007-10-11 05:20:03 -04:00
|
|
|
#else
|
2008-01-30 07:30:21 -05:00
|
|
|
# define sg_dma_len(sg) ((sg)->dma_length)
|
|
|
|
|
#endif
|
|
|
|
|
|
2008-06-18 11:08:48 -04:00
|
|
|
#endif /* ASM_X86__SCATTERLIST_H */
|
