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Subject[PATCH v4 07/10] 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 <>
Cc: Juri Lelli <>
Signed-off-by: Dietmar Eggemann <>
Acked-by: Vincent Guittot <>
Acked-by: Russell King <>
Tested-by: Juri Lelli <>
Reviewed-by: Juri Lelli <>
arch/arm/include/asm/topology.h | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h
index 370f7a732900..a56a9e24f4c0 100644
--- a/arch/arm/include/asm/topology.h
+++ b/arch/arm/include/asm/topology.h
@@ -24,6 +24,11 @@ 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

static inline void init_cpu_topology(void) { }
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