--- zzzz-none-000/linux-4.4.60/arch/arm64/kernel/smp.c	2017-04-08 07:53:53.000000000 +0000
+++ dragonfly-4020-701/linux-4.4.60/arch/arm64/kernel/smp.c	2018-11-08 13:36:17.000000000 +0000
@@ -70,6 +70,7 @@
 	IPI_CPU_STOP,
 	IPI_TIMER,
 	IPI_IRQ_WORK,
+	IPI_WAKEUP,
 };
 
 /*
@@ -626,6 +627,7 @@
 	S(IPI_CPU_STOP, "CPU stop interrupts"),
 	S(IPI_TIMER, "Timer broadcast interrupts"),
 	S(IPI_IRQ_WORK, "IRQ work interrupts"),
+	S(IPI_WAKEUP, "CPU wakeup interrupts"),
 };
 
 static void smp_cross_call(const struct cpumask *target, unsigned int ipinr)
@@ -669,6 +671,11 @@
 	smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC);
 }
 
+void arch_send_wakeup_ipi_mask(const struct cpumask *mask)
+{
+	smp_cross_call(mask, IPI_WAKEUP);
+}
+
 #ifdef CONFIG_IRQ_WORK
 void arch_irq_work_raise(void)
 {