Re: [PATCH v2 08/10] arm64: wire frequency-invariant accounting support up to the task scheduler

[Viresh Kumar]

On 06-07-17, 10:49, Dietmar Eggemann wrote:
> 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@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 d9cbb289e295..4fd598b432e6 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);
>  /* Subscribe for input data for frequency-invariant load-tracking */
>  #define arch_set_freq_scale topology_set_freq_scale
>  
> +/* 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 */

Reviewed-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

-- 
viresh