- /*
- * 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 */