From b8824dfe1b3fe1d4ef3d7ee78a071b8290d3b153 Mon Sep 17 00:00:00 2001 From: Lorenzo Pieralisi Date: Wed, 17 Jul 2013 10:12:24 +0100 Subject: [PATCH] arm64: kernel: add CPU idle call When CPU idle is enabled, the architectural idle call should go through the idle subsystem to allow CPUs to enter idle states defined by the platform CPU idle back-end operations. This patch, mirroring other archs behaviour, adds the CPU idle call to the architectural arch_cpu_idle implementation for arm64. Acked-by: Daniel Lezcano Signed-off-by: Lorenzo Pieralisi --- arch/arm64/kernel/process.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index de17c89985db..50491ec4de34 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include @@ -98,8 +99,10 @@ void arch_cpu_idle(void) * This should do all the clock switching and wait for interrupt * tricks */ - cpu_do_idle(); - local_irq_enable(); + if (cpuidle_idle_call()) { + cpu_do_idle(); + local_irq_enable(); + } } #ifdef CONFIG_HOTPLUG_CPU -- 2.20.1