/* * include/asm-s390x/dma.h * * S390 version */ #ifndef _ASM_DMA_H #define _ASM_DMA_H #include /* 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 */