From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- arch/s390/include/asm/dma.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 arch/s390/include/asm/dma.h (limited to 'arch/s390/include/asm/dma.h') diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h new file mode 100644 index 00000000..bb9bdcd2 --- /dev/null +++ b/arch/s390/include/asm/dma.h @@ -0,0 +1,19 @@ +#ifndef _ASM_S390_DMA_H +#define _ASM_S390_DMA_H + +#include + +/* + * 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 */ -- cgit v1.3.1