diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2008-01-30 13:30:21 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:30:21 +0100 |
| commit | 3ebc51d7c95425c3b4667fa042576fb1c6e2ea16 (patch) | |
| tree | 0d63faa0c3df10c1e55264e807b88ef844262fc0 /include/asm-x86/scatterlist.h | |
| parent | x86: merge include/asm-x86/dma.h (diff) | |
| download | linux-3ebc51d7c95425c3b4667fa042576fb1c6e2ea16.tar.xz linux-3ebc51d7c95425c3b4667fa042576fb1c6e2ea16.zip | |
x86: merge include/asm-x86/scatterlist.h
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 3a1e76257a27..d13c197866d6 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 |