diff options
| author | Paul Mackerras <paulus@samba.org> | 2008-01-31 11:25:51 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-01-31 11:25:51 +1100 |
| commit | bd45ac0c5daae35e7c71138172e63df5cf644cf6 (patch) | |
| tree | 5eb5a599bf6a9d7a8a34e802db932aa9e9555de4 /include/asm-x86/scatterlist.h | |
| parent | 4eece4ccf997c0e6d8fdad3d842e37b16b8d705f (diff) | |
| parent | 5bdeae46be6dfe9efa44a548bd622af325f4bdb4 (diff) | |
Merge branch 'linux-2.6'
Diffstat (limited to 'include/asm-x86/scatterlist.h')
| -rw-r--r-- | include/asm-x86/scatterlist.h | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/include/asm-x86/scatterlist.h b/include/asm-x86/scatterlist.h index 3a1e76257a2..d13c197866d 100644 --- a/include/asm-x86/scatterlist.h +++ b/include/asm-x86/scatterlist.h @@ -1,5 +1,35 @@ +#ifndef _ASM_X86_SCATTERLIST_H +#define _ASM_X86_SCATTERLIST_H + +#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; +#ifdef CONFIG_X86_64 + unsigned int dma_length; +#endif +}; + +#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) #ifdef CONFIG_X86_32 -# include "scatterlist_32.h" +# define sg_dma_len(sg) ((sg)->length) #else -# include "scatterlist_64.h" +# define sg_dma_len(sg) ((sg)->dma_length) +#endif + #endif |