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[v3,10/10] arm64: wire cpu-invariant accounting support up to the task scheduler

Message ID 20170727193312.9849-11-dietmar.eggemann@arm.com
State Superseded
Headers show
Series [v3,01/10] drivers base/arch_topology: free cpumask cpus_to_visit | expand

Commit Message

Dietmar Eggemann July 27, 2017, 7:33 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
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 | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.11.0
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Patch

diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h
index 44598a86ec4a..e313eeb10756 100644
--- a/arch/arm64/include/asm/topology.h
+++ b/arch/arm64/include/asm/topology.h
@@ -37,6 +37,9 @@  int pcibus_to_node(struct pci_bus *bus);
 /* 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
+
 #include <asm-generic/topology.h>
 
 #endif /* _ASM_ARM_TOPOLOGY_H */