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[v4,08/10] arm: wire cpu-invariant accounting support up to the task scheduler

Message ID 20170825143206.30467-9-dietmar.eggemann@arm.com
State Accepted
Commit 552c4653bf89147c945bd676d28d4746c9500002
Headers show
Series None | expand

Commit Message

Dietmar Eggemann Aug. 25, 2017, 2:32 p.m. UTC
Commit 8cd5601c5060 ("sched/fair: Convert arch_scale_cpu_capacity() from
weak function to #define") changed the wiring which now has to be done
by associating arch_scale_cpu_capacity with the actual implementation
provided by the architecture.

Define arch_scale_cpu_capacity to use the arch_topology "driver"
function topology_get_cpu_scale() for the task scheduler's cpu-invariant
accounting instead of the default arch_scale_cpu_capacity() in

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>

Acked-by: Russell King <rmk+kernel@armlinux.org.uk>

Tested-by: Juri Lelli <juri.lelli@arm.com>

Reviewed-by: Juri Lelli <juri.lelli@arm.com>

 arch/arm/include/asm/topology.h | 3 +++
 1 file changed, 3 insertions(+)

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diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h
index a56a9e24f4c0..b713e7223bc4 100644
--- a/arch/arm/include/asm/topology.h
+++ b/arch/arm/include/asm/topology.h
@@ -29,6 +29,9 @@  const struct cpumask *cpu_coregroup_mask(int cpu);
 /* Replace task scheduler's default frequency-invariant accounting */
 #define arch_scale_freq_capacity topology_get_freq_scale
+/* Replace task scheduler's default cpu-invariant accounting */
+#define arch_scale_cpu_capacity topology_get_cpu_scale
 static inline void init_cpu_topology(void) { }