From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dietmar Eggemann <dietmar.eggemann@arm.com>
Subject: [RFC PATCH v2 6/6] drivers: base: arch_topology.c: Enable EAS for arm/arm64 platforms
Date: Fri,  6 Apr 2018 16:36:07 +0100
Message-ID: <20180406153607.17815-7-dietmar.eggemann@arm.com>
References: <20180406153607.17815-1-dietmar.eggemann@arm.com>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <20180406153607.17815-1-dietmar.eggemann@arm.com>
Sender: linux-kernel-owner@vger.kernel.org
To: linux-kernel@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>, Quentin Perret <quentin.perret@arm.com>, Thara Gopinath <thara.gopinath@linaro.org>
Cc: linux-pm@vger.kernel.org, Morten Rasmussen <morten.rasmussen@arm.com>, Chris Redpath <chris.redpath@arm.com>, Patrick Bellasi <patrick.bellasi@arm.com>, Valentin Schneider <valentin.schneider@arm.com>, "Rafael J . Wysocki" <rjw@rjwysocki.net>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Vincent Guittot <vincent.guittot@linaro.org>, Viresh Kumar <viresh.kumar@linaro.org>, Todd Kjos <tkjos@google.com>, Joel Fernandes <joelaf@google.com>, Juri Lelli <juri.lelli@redhat.com>, Steve Muckle <smuckle@google.com>, Eduardo Valentin <edubezval@gmail.com>
List-Id: linux-pm@vger.kernel.org

From: Quentin Perret <quentin.perret@arm.com>

Energy Aware Scheduling (EAS) has to be started from the arch code.
This commit enables it from the arch topology driver for arm/arm64
systems, hence enabling a better support for Arm big.LITTLE and future
DynamIQ architectures.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
---
 drivers/base/arch_topology.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 52ec5174bcb1..25a70c21860f 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/sched/topology.h>
+#include <linux/sched/energy.h>
 
 DEFINE_PER_CPU(unsigned long, freq_scale) = SCHED_CAPACITY_SCALE;
 
@@ -247,6 +248,7 @@ static void __init parsing_done_workfn(struct work_struct *work)
 	cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
 					 CPUFREQ_POLICY_NOTIFIER);
 	free_cpumask_var(cpus_to_visit);
+	init_sched_energy();
 }
 
 #else
-- 
2.11.0