linux-kernel - [RFC PATCH v2 4/4] arm64: Enable dynamic CPU capacity initialization

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Date:	Fri,  8 Jan 2016 14:09:32 +0000
From:	Juri Lelli <juri.lelli@....com>
To:	linux-kernel@...r.kernel.org
Cc:	linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	peterz@...radead.org, vincent.guittot@...aro.org,
	robh+dt@...nel.org, mark.rutland@....com, linux@....linux.org.uk,
	sudeep.holla@....com, lorenzo.pieralisi@....com,
	catalin.marinas@....com, will.deacon@....com,
	morten.rasmussen@....com, dietmar.eggemann@....com,
	juri.lelli@....com, broonie@...nel.org
Subject: [RFC PATCH v2 4/4] arm64: Enable dynamic CPU capacity initialization

Define arch_wants_init_cpu_capacity() to return true; so that
cpufreq_init_cpu_capacity() can go ahead and profile CPU capacities
at boot time.

Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will.deacon@....com>
Cc: Sudeep Holla <sudeep.holla@....com>
Cc: Mark Rutland <mark.rutland@....com>
Signed-off-by: Juri Lelli <juri.lelli@....com>
---
 arch/arm64/kernel/topology.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 3b75d63..f2513a6 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -35,6 +35,11 @@ void set_capacity_scale(unsigned int cpu, unsigned long capacity)
 	per_cpu(cpu_scale, cpu) = capacity;
 }
 
+bool arch_wants_init_cpu_capacity(void)
+{
+	return true;
+}
+
 static int __init get_cpu_for_node(struct device_node *node)
 {
 	struct device_node *cpu_node;
-- 
2.2.2