diff options
author | Bryan Wu <cooloney@kernel.org> | 2008-08-27 10:51:02 +0800 |
---|---|---|
committer | Bryan Wu <cooloney@kernel.org> | 2008-08-27 10:51:02 +0800 |
commit | 639f6571458948b5112be2cf00c0c2c04db2897d (patch) | |
tree | a4dd7af33d0e92c935ba1e904f6fb7e923ac825e /arch/blackfin/include/asm/scatterlist.h | |
parent | 3d9b7a5ce534f3963afcf8f4777267e5899fe007 (diff) | |
download | op-kernel-dev-639f6571458948b5112be2cf00c0c2c04db2897d.zip op-kernel-dev-639f6571458948b5112be2cf00c0c2c04db2897d.tar.gz |
Blackfin arch: move include/asm-blackfin header files to arch/blackfin
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/include/asm/scatterlist.h')
-rw-r--r-- | arch/blackfin/include/asm/scatterlist.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/scatterlist.h b/arch/blackfin/include/asm/scatterlist.h new file mode 100644 index 0000000..04f4487 --- /dev/null +++ b/arch/blackfin/include/asm/scatterlist.h @@ -0,0 +1,28 @@ +#ifndef _BLACKFIN_SCATTERLIST_H +#define _BLACKFIN_SCATTERLIST_H + +#include <linux/mm.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; +}; + +/* + * 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, or alternatively stop on the first sg_dma_len(sg) which + * is 0. + */ +#define sg_dma_address(sg) ((sg)->dma_address) +#define sg_dma_len(sg) ((sg)->length) + +#define ISA_DMA_THRESHOLD (0xffffffff) + +#endif /* !(_BLACKFIN_SCATTERLIST_H) */ |