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Date:   Wed, 18 Oct 2023 12:16:01 +0100
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Subject: Re: [PATCH v2 3/6] cpufreq: use the fixed and coherent frequency for
 scaling capacity
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To:     Vincent Guittot <vincent.guittot@linaro.org>
Cc:     conor.dooley@microchip.com, suagrfillet@gmail.com,
        juri.lelli@redhat.com, aou@eecs.berkeley.edu,
        ajones@ventanamicro.com, catalin.marinas@arm.com,
        palmer@dabbelt.com, paul.walmsley@sifive.com, rostedt@goodmis.org,
        will@kernel.org, ionela.voinescu@arm.com, pierre.gondois@arm.com,
        viresh.kumar@linaro.org, peterz@infradead.org,
        gregkh@linuxfoundation.org, bristot@redhat.com,
        dietmar.eggemann@arm.com, lftan@kernel.org,
        linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, mingo@redhat.com,
        linux-riscv@lists.infradead.org, mgorman@suse.de,
        bsegall@google.com, vschneid@redhat.com, linux@armlinux.org.uk,
        sudeep.holla@arm.com, rafael@kernel.org
References: <20231009103621.374412-1-vincent.guittot@linaro.org>
 <20231009103621.374412-4-vincent.guittot@linaro.org>
From:   Lukasz Luba <lukasz.luba@arm.com>
In-Reply-To: <20231009103621.374412-4-vincent.guittot@linaro.org>
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On 10/9/23 11:36, Vincent Guittot wrote:
> cpuinfo.max_freq can change at runtime because of boost as an example. This
> implies that the value could be different from the frequency that has been
> used to compute the capacity of a CPU.
> 
> The new arch_scale_freq_ref() returns a fixed and coherent frequency
> that can be used to compute the capacity for a given frequency.
> 
> Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
> ---
>   drivers/cpufreq/cpufreq.c | 4 ++--
>   include/linux/cpufreq.h   | 9 +++++++++
>   2 files changed, 11 insertions(+), 2 deletions(-)
> 

Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>