diff options
Diffstat (limited to 'include/asm-s390x/dma.h')
| -rw-r--r-- | include/asm-s390x/dma.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/asm-s390x/dma.h b/include/asm-s390x/dma.h new file mode 100644 index 000000000..2a19a6184 --- /dev/null +++ b/include/asm-s390x/dma.h @@ -0,0 +1,16 @@ +/* + * include/asm-s390x/dma.h + * + * S390 version + */ + +#ifndef _ASM_DMA_H +#define _ASM_DMA_H + +#include <asm/io.h> /* need byte IO */ + +/* The I/O subsystem can access only memory below 2GB. + We use the existing DMA zone mechanism to handle this. */ +#define MAX_DMA_ADDRESS 0x80000000 + +#endif /* _ASM_DMA_H */ |