--- zzzz-none-000/linux-2.6.39.4/kernel/trace/trace_clock.c	2011-08-03 19:43:28.000000000 +0000
+++ puma6-arm-6490-729/linux-2.6.39.4/kernel/trace/trace_clock.c	2021-11-10 13:23:10.000000000 +0000
@@ -23,6 +23,32 @@
 
 #include "trace.h"
 
+#ifndef CONFIG_HIGH_RES_TIMERS
+extern unsigned long long notrace avalanche_clock_p(void);
+u64 notrace trace_clock_p(void)
+{
+	u64 clock;
+
+	preempt_disable_notrace();
+	clock = avalanche_clock_p();
+	preempt_enable_notrace();
+
+	return clock;
+}
+
+extern unsigned long long notrace avalanche_clock_vp(void);
+u64 notrace trace_clock_vp(void)
+{
+	u64 clock;
+
+	preempt_disable_notrace();
+	clock = avalanche_clock_vp();
+	preempt_enable_notrace();
+
+	return clock;
+}
+#endif
+
 /*
  * trace_clock_local(): the simplest and least coherent tracing clock.
  *