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/* SPDX-License-Identifier: GPL-2.0 */
#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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