diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 0095e2627794..5b11dbdb1087 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -90,6 +90,16 @@ void arch_cpu_idle(void)
 	trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id());
 }
 
+void arch_cpu_idle_enter(void)
+{
+	idle_notifier_call_chain(IDLE_START);
+}
+
+void arch_cpu_idle_exit(void)
+{
+	idle_notifier_call_chain(IDLE_END);
+}
+
 #ifdef CONFIG_HOTPLUG_CPU
 void arch_cpu_idle_dead(void)
 {