diff options
Diffstat (limited to 'arch/s390/include/asm/dma.h')
| -rw-r--r-- | arch/s390/include/asm/dma.h | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h index 6fb6de4f15b0..de015d85e3e5 100644 --- a/arch/s390/include/asm/dma.h +++ b/arch/s390/include/asm/dma.h @@ -1,14 +1,13 @@ -/* - * S390 version - */ - -#ifndef _ASM_DMA_H -#define _ASM_DMA_H +#ifndef _ASM_S390_DMA_H +#define _ASM_S390_DMA_H -#include <asm/io.h> /* need byte IO */ +#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 -#define free_dma(x) do { } while (0) - -#endif /* _ASM_DMA_H */ +#endif /* _ASM_S390_DMA_H */ |