diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
index 20b94220113b..6527d7e8e010 100644
--- a/arch/s390/include/asm/diag.h
+++ b/arch/s390/include/asm/diag.h
@@ -12,6 +12,7 @@
 #include <linux/if_ether.h>
 #include <linux/percpu.h>
 #include <asm/asm-extable.h>
+#include <asm/sclp.h>
 #include <asm/cio.h>
 
 enum diag_stat_enum {
@@ -117,6 +118,7 @@ enum diag204_sc {
 };
 
 #define DIAG204_SUBCODE_MASK 0xffff
+#define DIAG204_BIF_BIT 0x80000000
 
 /* The two available diag 204 data formats */
 enum diag204_format {
@@ -326,6 +328,11 @@ union diag318_info {
 	};
 };
 
+static inline bool diag204_has_bif(void)
+{
+	return sclp.has_diag204_bif;
+}
+
 int diag204(unsigned long subcode, unsigned long size, void *addr);
 int diag224(void *ptr);
 int diag26c(void *req, void *resp, enum diag26c_sc subcode);