diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-28 12:34:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-28 12:34:01 -0700 |
| commit | 604a2785a8482cad4d63202465133c720db5eda7 (patch) | |
| tree | e2f510a8a54d7d4443cb52f3a0be46f527ebb779 /arch/blackfin/include/asm/scatterlist.h | |
| parent | 66833d5f3934a19d0988b7d0de58149bfd7a5884 (diff) | |
| parent | d310fb4bb73629840430cb13cb282915e49fef4b (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
Blackfin arch: Fix PM building on BF52x: No ROTWE on BF52x, add USBWE
Blackfin arch: sram: use 'unsigned long' for irqflags
Blackfin arch: let PCI depend on BROKEN
Blackfin arch: move include/asm-blackfin header files to arch/blackfin
Blackfin arch: fix bug - MPU crashes under stress
Blackfin arch: Fix bug - when to rmmod the L1_module, it stucks and then reboot the board.
Blackfin arch: dont actually need to muck with EMAC_SYSTAT for BF52x for demuxing
Blackfin arch: Add MTD Partitions for MTD_DATAFLASH, increase max SPI SCLK
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 00000000000..04f448711cd --- /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) */ |