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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/asm-powerpc/scatterlist.h
1 #ifndef _ASM_POWERPC_SCATTERLIST_H
2 #define _ASM_POWERPC_SCATTERLIST_H
4 * Copyright (C) 2001 PPC64 Team, IBM Corp
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
13 #include <linux/types.h>
17 #ifdef CONFIG_DEBUG_SG
18 unsigned long sg_magic
;
20 unsigned long page_link
;
25 dma_addr_t dma_address
;
30 * These macros should be used after a dma_map_sg call has been done
31 * to get bus addresses of each of the SG entries and their lengths.
32 * You should only work with the number of sg entries pci_map_sg
33 * returns, or alternatively stop on the first sg_dma_len(sg) which
36 #define sg_dma_address(sg) ((sg)->dma_address)
38 #define sg_dma_len(sg) ((sg)->dma_length)
40 #define sg_dma_len(sg) ((sg)->length)
44 #define ISA_DMA_THRESHOLD (~0UL)
47 #define ARCH_HAS_SG_CHAIN
49 #endif /* __KERNEL__ */
50 #endif /* _ASM_POWERPC_SCATTERLIST_H */