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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/asm-arm26/scatterlist.h
1 #ifndef _ASMARM_SCATTERLIST_H
2 #define _ASMARM_SCATTERLIST_H
7 struct page
*page
; /* buffer page */
8 unsigned int offset
; /* buffer offset */
9 dma_addr_t dma_address
; /* dma address */
10 unsigned int length
; /* length */
11 char *__address
; /* for set_dma_addr */
15 * These macros should be used after a pci_map_sg call has been done
16 * to get bus addresses of each of the SG entries and their lengths.
17 * You should only work with the number of sg entries pci_map_sg
18 * returns, or alternatively stop on the first sg_dma_len(sg) which
21 #define sg_dma_address(sg) ((sg)->dma_address)
22 #define sg_dma_len(sg) ((sg)->length)
24 #define ISA_DMA_THRESHOLD (0xffffffff)
26 #endif /* _ASMARM_SCATTERLIST_H */