Re: [PATCH 4/6] arm: wire cpu-invariant accounting support up to the task scheduler
From: Vincent Guittot <vincent.guittot@linaro.org>
Date: 2017-06-12 14:32:16
Also in:
linux-arm-kernel, lkml
On 8 June 2017 at 09:55, Dietmar Eggemann [off-list ref] wrote:
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
kernel/sched/sched.h.
Cc: Russell King <redacted>
Cc: Juri Lelli <redacted>
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
quoted hunk ↗ jump to hunk
--- arch/arm/include/asm/topology.h | 3 +++ 1 file changed, 3 insertions(+)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 + #else static inline void init_cpu_topology(void) { } --2.11.0