diff --git a/include/asm-s390/cpcmd.h b/include/asm-s390/cpcmd.h
new file mode 100644
index 0000000..1d33c5da
--- /dev/null
+++ b/include/asm-s390/cpcmd.h
@@ -0,0 +1,24 @@
+/*
+ *  arch/s390/kernel/cpcmd.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Christian Borntraeger (cborntra@de.ibm.com),
+ */
+
+#ifndef __CPCMD__
+#define __CPCMD__
+
+/*
+ * the caller of __cpcmd has to ensure that the response buffer is below 2 GB
+ */
+extern void __cpcmd(char *cmd, char *response, int rlen);
+
+#ifndef __s390x__
+#define cpcmd __cpcmd
+#else
+extern void cpcmd(char *cmd, char *response, int rlen);
+#endif /*__s390x__*/
+
+#endif