From: Viresh Kumar <viresh.kumar@linaro.org>
To: Ionela Voinescu <ionela.voinescu@arm.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>,
linux-pm@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Rafael Wysocki <rjw@rjwysocki.net>,
linux-kernel@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sudeep Holla <sudeep.holla@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH V3 1/2] topology: Allow multiple entities to provide sched_freq_tick() callback
Date: Thu, 18 Feb 2021 12:53:46 +0530 [thread overview]
Message-ID: <20210218072346.5lvymba35ezuz2do@vireshk-i7> (raw)
In-Reply-To: <20210217115726.GA25441@arm.com>
On 17-02-21, 11:57, Ionela Voinescu wrote:
> See a very useful comment someone added recently :) :
>
> """
> + /*
> + * We don't need to handle CPUFREQ_REMOVE_POLICY event as the AMU
> + * counters don't have any dependency on cpufreq driver once we have
> + * initialized AMU support and enabled invariance. The AMU counters will
> + * keep on working just fine in the absence of the cpufreq driver, and
> + * for the CPUs for which there are no counters available, the last set
> + * value of freq_scale will remain valid as that is the frequency those
> + * CPUs are running at.
> + */
> """
Lol...
--
viresh
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next prev parent reply other threads:[~2021-02-18 7:25 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-28 10:48 [PATCH V3 0/2] cpufreq: cppc: Add support for frequency invariance Viresh Kumar
2021-01-28 10:48 ` [PATCH V3 1/2] topology: Allow multiple entities to provide sched_freq_tick() callback Viresh Kumar
2021-02-03 11:45 ` Ionela Voinescu
2021-02-05 9:14 ` Viresh Kumar
2021-02-17 0:24 ` Ionela Voinescu
2021-02-17 4:25 ` Viresh Kumar
2021-02-17 11:30 ` Ionela Voinescu
2021-02-17 11:40 ` Viresh Kumar
2021-02-17 11:57 ` Ionela Voinescu
2021-02-18 7:23 ` Viresh Kumar [this message]
2021-02-18 9:33 ` Viresh Kumar
2021-02-18 16:36 ` Ionela Voinescu
2021-02-19 4:58 ` Viresh Kumar
2021-02-19 9:44 ` Ionela Voinescu
2021-02-19 9:48 ` Viresh Kumar
2021-01-28 10:48 ` [PATCH V3 2/2] cpufreq: cppc: Add support for frequency invariance Viresh Kumar
2021-02-18 16:35 ` Ionela Voinescu
2021-02-22 11:00 ` Ionela Voinescu
2021-02-22 11:04 ` Viresh Kumar
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