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From: Viresh Kumar <viresh.kumar@linaro.org>
To: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Rafael Wysocki <rjw@rjwysocki.net>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Linux PM <linux-pm@vger.kernel.org>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Morten Rasmussen <morten.rasmussen@arm.com>,
	Juri Lelli <juri.lelli@redhat.com>, Todd Kjos <tkjos@android.com>,
	Joel Fernandes <joelaf@google.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/4] sched: cpufreq: Keep track of cpufreq utilization update flags
Date: Sat, 16 Dec 2017 22:17:07 +0530	[thread overview]
Message-ID: <CAKohpomHfV=2CQj0_D=PsoMvbCu5v_ensJqaZmxUURzr27+yhA@mail.gmail.com> (raw)
In-Reply-To: <CAJZ5v0jLQ7v5u+OUpK0gSAHvR90K=agvUSuFNzJXMnk+YkKyzQ@mail.gmail.com>

On 16 December 2017 at 22:10, Rafael J. Wysocki <rafael@kernel.org> wrote:
> On Wed, Dec 13, 2017 at 10:53 AM, Viresh Kumar <viresh.kumar@linaro.org> wrote:

>> +#define SCHED_CPUFREQ_CLEAR    (1U << 31)
>
> I'm not thrilled by this, because schedutil is not the only user of
> the flags and it's totally unclear what the other user(s) should do
> when this is set.

intel-pstate is the only other user of the IOWAIT flag, right? In order
not to change the current behavior, we can update that to return early
for now ?

--
viresh

  reply	other threads:[~2017-12-16 16:47 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-13  9:53 [PATCH 0/4] sched: cpufreq: Track util update flags Viresh Kumar
2017-12-13  9:53 ` [PATCH 1/4] cpufreq: schedutil: Initialize sg_cpu->flags to 0 Viresh Kumar
2017-12-13 11:13   ` Juri Lelli
2017-12-13 11:22     ` Viresh Kumar
2018-01-10 12:15   ` [tip:sched/core] sched/cpufreq: " tip-bot for Viresh Kumar
2017-12-13  9:53 ` [PATCH 2/4] sched: cpufreq: Keep track of cpufreq utilization update flags Viresh Kumar
2017-12-13 11:26   ` Juri Lelli
2017-12-13 11:29     ` Viresh Kumar
2017-12-16 16:40   ` Rafael J. Wysocki
2017-12-16 16:47     ` Viresh Kumar [this message]
2017-12-17  0:19       ` Rafael J. Wysocki
2017-12-18  4:59         ` Viresh Kumar
2017-12-18 11:35           ` Rafael J. Wysocki
2017-12-18 11:59             ` Viresh Kumar
2017-12-18 12:14               ` Patrick Bellasi
2017-12-19  3:12                 ` Viresh Kumar
2017-12-19  3:18                   ` Joel Fernandes
2017-12-19  3:22                     ` Viresh Kumar
2017-12-19  3:26                       ` Viresh Kumar
2017-12-19  3:30                         ` Joel Fernandes
2017-12-19  3:41                           ` Viresh Kumar
2017-12-19 10:44                             ` Rafael J. Wysocki
2017-12-18 17:34               ` Rafael J. Wysocki
2017-12-19 19:25   ` Peter Zijlstra
2017-12-20  4:04     ` Viresh Kumar
2017-12-20  8:31       ` Peter Zijlstra
2017-12-20  8:48         ` Viresh Kumar
2017-12-20  9:17           ` Peter Zijlstra
2017-12-20 12:55         ` Patrick Bellasi
2017-12-20 13:28           ` Peter Zijlstra
2017-12-20 14:31             ` Patrick Bellasi
2017-12-20 14:52               ` Rafael J. Wysocki
2017-12-20 15:01                 ` Patrick Bellasi
2017-12-20 14:47             ` Rafael J. Wysocki
2017-12-20 14:51               ` Peter Zijlstra
2017-12-20 17:27               ` Juri Lelli
2017-12-20 18:17                 ` Peter Zijlstra
2017-12-13  9:53 ` [PATCH 3/4] cpufreq: schedutil: Don't pass flags to sugov_set_iowait_boost() Viresh Kumar
2017-12-13 11:28   ` Juri Lelli
2018-01-10 12:15   ` [tip:sched/core] sched/cpufreq: " tip-bot for Viresh Kumar
2017-12-13  9:53 ` [PATCH 4/4] cpufreq: schedutil: Don't call sugov_get_util() unnecessarily Viresh Kumar
2017-12-13 11:34   ` Juri Lelli
2017-12-13 12:02     ` Viresh Kumar
2017-12-19  3:26   ` Joel Fernandes

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