From: Peter Boonstoppel <pboonstoppel@nvidia.com>
Date: Wed, 1 Jan 2014 02:47:17 +0000 (-0800)
Subject: arm64: kernel: Adding arch_cpu_idle_enter/exit()
X-Git-Tag: firefly_0821_release~4158^2~450
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4a36b82fd25caeb1aab03d05401c663d5811f749;p=firefly-linux-kernel-4.4.55.git

arm64: kernel: Adding arch_cpu_idle_enter/exit()

Adding idle_notifier_call_chain calls in arch_cpu_idle_enter/exit(),
since these are required for cpufreq_interactive.

(see also 6e97e69a7735d3fdc231cb50fe055dbaf1faec48)

Change-Id: I2dc5ead78608350a010bc0ea2a1d139c8867620a
Signed-off-by: Peter Boonstoppel <pboonstoppel@nvidia.com>
Reviewed-on: http://git-master/r/351085
GVS: Gerrit_Virtual_Submit
Reviewed-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Tested-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Reviewed-by: Alexander Van Brunt <avanbrunt@nvidia.com>
---

diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index c09f85f80a9e..c419e4814ba7 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -447,3 +447,13 @@ unsigned long randomize_et_dyn(unsigned long base)
 {
 	return randomize_base(base);
 }
+
+void arch_cpu_idle_enter(void)
+{
+	idle_notifier_call_chain(IDLE_START);
+}
+
+void arch_cpu_idle_exit(void)
+{
+	idle_notifier_call_chain(IDLE_END);
+}