21 lines
456 B
C
21 lines
456 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_S390_DMA_H
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#define _ASM_S390_DMA_H
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#include <asm/io.h>
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/*
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* MAX_DMA_ADDRESS is ambiguous because on s390 its completely unrelated
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* to DMA. It _is_ used for the s390 memory zone split at 2GB caused
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* by the 31 bit heritage.
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*/
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#define MAX_DMA_ADDRESS 0x80000000
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#ifdef CONFIG_PCI
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extern int isa_dma_bridge_buggy;
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#else
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#define isa_dma_bridge_buggy (0)
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#endif
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#endif /* _ASM_S390_DMA_H */
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