zpci_barrier       63 arch/s390/include/asm/io.h #define mmiowb()	zpci_barrier()
zpci_barrier      136 arch/s390/include/asm/pci_insn.h void zpci_barrier(void);
zpci_barrier      386 arch/s390/pci/pci_insn.c EXPORT_SYMBOL_GPL(zpci_barrier);