Release 4.16 include/asm-generic/dma.h

/* 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 */
Overall Contributors
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Arnd Bergmann
37
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Greg Kroah-Hartman
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Total
38
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2
100.00%
Directory: include/asm-generic

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