ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/s390/kernel/trace.c b/marvell/linux/arch/s390/kernel/trace.c
new file mode 100644
index 0000000..11a669f
--- /dev/null
+++ b/marvell/linux/arch/s390/kernel/trace.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tracepoint definitions for s390
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#include <linux/percpu.h>
+#define CREATE_TRACE_POINTS
+#include <asm/trace/diag.h>
+
+EXPORT_TRACEPOINT_SYMBOL(s390_diagnose);
+
+static DEFINE_PER_CPU(unsigned int, diagnose_trace_depth);
+
+void notrace trace_s390_diagnose_norecursion(int diag_nr)
+{
+ unsigned long flags;
+ unsigned int *depth;
+
+ /* Avoid lockdep recursion. */
+ if (IS_ENABLED(CONFIG_LOCKDEP))
+ return;
+ local_irq_save(flags);
+ depth = this_cpu_ptr(&diagnose_trace_depth);
+ if (*depth == 0) {
+ (*depth)++;
+ trace_s390_diagnose(diag_nr);
+ (*depth)--;
+ }
+ local_irq_restore(flags);
+}