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[ARM] pxa: separate GPIOs and their mode definitions to pxa2xx-gpio.h
[linux-2.6.git] / include / asm-blackfin / scatterlist.h
1 #ifndef _BLACKFIN_SCATTERLIST_H
2 #define _BLACKFIN_SCATTERLIST_H
3
4 #include <linux/mm.h>
5
6 struct scatterlist {
7 #ifdef CONFIG_DEBUG_SG
8         unsigned long sg_magic;
9 #endif
10         unsigned long page_link;
11         unsigned int offset;
12         dma_addr_t dma_address;
13         unsigned int length;
14 };
15
16 /*
17  * These macros should be used after a pci_map_sg call has been done
18  * to get bus addresses of each of the SG entries and their lengths.
19  * You should only work with the number of sg entries pci_map_sg
20  * returns, or alternatively stop on the first sg_dma_len(sg) which
21  * is 0.
22  */
23 #define sg_dma_address(sg)      ((sg)->dma_address)
24 #define sg_dma_len(sg)          ((sg)->length)
25
26 #define ISA_DMA_THRESHOLD       (0xffffffff)
27
28 #endif                          /* !(_BLACKFIN_SCATTERLIST_H) */