arch/s390/include/asm/dma.h

   1 #ifndef _ASM_S390_DMA_H
   2 #define _ASM_S390_DMA_H
   3
   4 #include <asm/io.h>
   5
   6 /*
   7  * MAX_DMA_ADDRESS is ambiguous because on s390 its completely unrelated
   8  * to DMA. It _is_ used for the s390 memory zone split at 2GB caused
   9  * by the 31 bit heritage.
  10  */
  11 #define MAX_DMA_ADDRESS         0x80000000
  12
  13 #ifdef CONFIG_PCI
  14 extern int isa_dma_bridge_buggy;
  15 #else
  16 #define isa_dma_bridge_buggy    (0)
  17 #endif
  18
  19 #endif /* _ASM_S390_DMA_H */