| #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 */ |