swh:1:snp:49cd9498d6cccc5e78252c27dcb645bcf7bf0c91
Raw File
Tip revision: 55d512e245bc7699a8800e23df1a24195dd08217 authored by Linus Torvalds on 08 September 2012, 23:43:45 UTC
Linux 3.6-rc5
Tip revision: 55d512e
dma.h
#ifndef __ASM_GENERIC_DMA_H
#define __ASM_GENERIC_DMA_H
/*
 * This file traditionally describes the i8237 PC style DMA controller.
 * Most architectures don't have these any more and can get the minimal
 * implementation from kernel/dma.c by not defining MAX_DMA_CHANNELS.
 *
 * Some code relies on seeing MAX_DMA_ADDRESS though.
 */
#define MAX_DMA_ADDRESS PAGE_OFFSET

extern int request_dma(unsigned int dmanr, const char *device_id);
extern void free_dma(unsigned int dmanr);

#endif /* __ASM_GENERIC_DMA_H */
back to top