From: Dietmar Eggemann <dietmar.eggemann@arm.com>
Date: Fri, 3 Feb 2017 20:37:16 +0000 (+0000)
Subject: ANDROID: arm: wire frequency-invariant accounting support up to the task scheduler
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cdab76a0f45d03b28a97e11345b4f4b457a83264;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

ANDROID: arm: wire frequency-invariant accounting support up to the task scheduler

Commit dfbca41f3479 ("sched: Optimize freq invariant accounting")
changed the wiring which now has to be done by associating
arch_scale_freq_capacity with the actual implementation provided
by the architecture.

Define arch_scale_freq_capacity to use the arch_topology "driver"
function topology_get_freq_scale() for the task scheduler's
frequency-invariant accounting instead of the default
arch_scale_freq_capacity() in kernel/sched/sched.h.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Tested-by: Juri Lelli <juri.lelli@arm.com>
Reviewed-by: Juri Lelli <juri.lelli@arm.com>
Change-Id: I04dc62ca703c8a1ebce52b35a39fdeaa55e44ca1
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
---

diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h
index f59ab9bcbaf9..06f80e4f03b8 100644
--- a/arch/arm/include/asm/topology.h
+++ b/arch/arm/include/asm/topology.h
@@ -25,6 +25,11 @@ void init_cpu_topology(void);
 void store_cpu_topology(unsigned int cpuid);
 const struct cpumask *cpu_coregroup_mask(int cpu);
 
+#include <linux/arch_topology.h>
+
+/* Replace task scheduler's default frequency-invariant accounting */
+#define arch_scale_freq_capacity topology_get_freq_scale
+
 #else
 
 static inline void init_cpu_topology(void) { }