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Groups > linux.kernel > #1720124

[PATCH v4 09/10] arm64: wire frequency-invariant accounting support up to the task scheduler

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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: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@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>
---
 arch/arm64/include/asm/topology.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h
index 8b57339823e9..44598a86ec4a 100644
--- a/arch/arm64/include/asm/topology.h
+++ b/arch/arm64/include/asm/topology.h
@@ -32,6 +32,11 @@ int pcibus_to_node(struct pci_bus *bus);
 
 #endif /* CONFIG_NUMA */
 
+#include <linux/arch_topology.h>
+
+/* Replace task scheduler's default frequency-invariant accounting */
+#define arch_scale_freq_capacity topology_get_freq_scale
+
 #include <asm-generic/topology.h>
 
 #endif /* _ASM_ARM_TOPOLOGY_H */
-- 
2.11.0

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[PATCH v4 00/10] arm, arm64, cpufreq: frequency- and cpu-invariant accounting support for task scheduler Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-08-25 16:40 +0200
  [PATCH v4 06/10] drivers base/arch_topology: allow inlining cpu-invariant accounting support Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-08-25 16:40 +0200
  [PATCH v4 09/10] arm64: wire frequency-invariant accounting support up to the task scheduler Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-08-25 16:40 +0200
  [PATCH v4 10/10] arm64: wire cpu-invariant accounting support up to the task scheduler Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-08-25 16:40 +0200
  [PATCH v4 05/10] drivers base/arch_topology: provide frequency-invariant accounting support Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-08-25 16:40 +0200
  [PATCH v4 03/10] cpufreq: arm_big_little: invoke frequency-invariance setter function Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-08-25 16:40 +0200
  [PATCH v4 07/10] arm: wire frequency-invariant accounting support up to the task scheduler Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-08-25 16:40 +0200
  [PATCH v4 02/10] cpufreq: provide default frequency-invariance setter function Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-08-25 16:40 +0200
    Re: [PATCH v4 02/10] cpufreq: provide default frequency-invariance setter function "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-09-08 01:40 +0200
  Re: [PATCH v4 00/10] arm, arm64, cpufreq: frequency- and cpu-invariant accounting support for task scheduler "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-08-31 01:50 +0200
    Re: [PATCH v4 00/10] arm, arm64, cpufreq: frequency- and  cpu-invariant accounting support for task scheduler Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-08-31 13:30 +0200
      Re: [PATCH v4 00/10] arm, arm64, cpufreq: frequency- and  cpu-invariant accounting support for task scheduler Dietmar Eggemann <dietmar.eggemann@arm.com> - 2017-09-07 14:10 +0200

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