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v0.8.1
https://github.com/torvalds/linux
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Tip revision: 319e2e3f63c348a9b66db4667efa73178e18b17d authored by Linus Torvalds on 15 December 2013, 20:31:33 UTC
Linux 3.13-rc4
Tip revision: 319e2e3
dma.h
#ifndef _ASM_S390_DMA_H
#define _ASM_S390_DMA_H

#include <asm/io.h>

/*
 * MAX_DMA_ADDRESS is ambiguous because on s390 its completely unrelated
 * to DMA. It _is_ used for the s390 memory zone split at 2GB caused
 * by the 31 bit heritage.
 */
#define MAX_DMA_ADDRESS         0x80000000

#ifdef CONFIG_PCI
extern int isa_dma_bridge_buggy;
#else
#define isa_dma_bridge_buggy	(0)
#endif

#endif /* _ASM_S390_DMA_H */
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