v4.19.13 snapshot.
diff --git a/arch/s390/include/asm/kdebug.h b/arch/s390/include/asm/kdebug.h
new file mode 100644
index 0000000..d5327f0
--- /dev/null
+++ b/arch/s390/include/asm/kdebug.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _S390_KDEBUG_H
+#define _S390_KDEBUG_H
+
+/*
+ * Feb 2006 Ported to s390 <grundym@us.ibm.com>
+ */
+
+struct pt_regs;
+
+enum die_val {
+ DIE_OOPS = 1,
+ DIE_BPT,
+ DIE_SSTEP,
+ DIE_PANIC,
+ DIE_NMI,
+ DIE_DIE,
+ DIE_NMIWATCHDOG,
+ DIE_KERNELDEBUG,
+ DIE_TRAP,
+ DIE_GPF,
+ DIE_CALL,
+ DIE_NMI_IPI,
+};
+
+extern void die(struct pt_regs *, const char *);
+
+#endif