Add an arm64 specific helper which parks the cpu in a more architecture
efficient way.
Signed-off-by: Cristian Marussi <cristian.marussi@xxxxxxx>
---
arch/arm64/kernel/smp.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index c7497a885cfd..a3fb22b4c870 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -947,6 +947,12 @@ void tick_broadcast(const struct cpumask *mask)
}
#endif
+void arch_smp_cpu_park(void)
+{
+ while (1)
+ cpu_park_loop();
+}
+
void arch_smp_cpus_stop_complete(void)
{
sdei_mask_local_cpu();
--
2.17.1
