[PATCH v2 09/10] arm64: wire cpu-invariant accounting support up to the task scheduler

From: Dietmar Eggemann
Date: Thu Jul 06 2017 - 05:51:17 EST

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: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: Juri Lelli <juri.lelli@xxxxxxx>
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@xxxxxxx>
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Acked-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
Tested-by: Juri Lelli <juri.lelli@xxxxxxx>
Reviewed-by: Juri Lelli <juri.lelli@xxxxxxx>
arch/arm64/include/asm/topology.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h
index 4fd598b432e6..0dc81860cc0d 100644
--- a/arch/arm64/include/asm/topology.h
+++ b/arch/arm64/include/asm/topology.h
@@ -40,6 +40,9 @@ 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 */