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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 */