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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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553 B · 16 lines
C
at master
1234567891011121314151617/* SPDX-License-Identifier: GPL-2.0 */#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 */