From: Pavan Kondeti <pkondeti@codeaurora.org>
To: Quentin Perret <qperret@google.com>
Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
x86@kernel.org, hpa@zytor.com, sudeep.holla@arm.com,
gregkh@linuxfoundation.org, rafael@kernel.org,
viresh.kumar@linaro.org, peterz@infradead.org,
juri.lelli@redhat.com, vincent.guittot@linaro.org,
dietmar.eggemann@arm.com, rostedt@goodmis.org,
bsegall@google.com, mgorman@suse.de, mcgrof@kernel.org,
keescook@chromium.org, yzaikin@google.com, fweisbec@gmail.com,
tkjos@google.com, kernel-team@android.com
Subject: Re: [PATCH 04/14] sched: cpufreq: Move sched_cpufreq_governor_change()
Date: Fri, 8 May 2020 11:05:23 +0530 [thread overview]
Message-ID: <20200508053523.GH19464@codeaurora.org> (raw)
In-Reply-To: <20200507181012.29791-5-qperret@google.com>
On Thu, May 07, 2020 at 07:10:02PM +0100, Quentin Perret wrote:
> CPUFreq calls into sched_cpufreq_governor_change() when switching
> governors, which triggers a sched domain rebuild when entering or
> exiting schedutil.
>
> Move the function to sched/cpufreq.c to prepare the ground for the
> modularization of schedutil.
>
> Signed-off-by: Quentin Perret <qperret@google.com>
> ---
> kernel/sched/cpufreq.c | 33 ++++++++++++++++++++++++++++++++
> kernel/sched/cpufreq_schedutil.c | 33 --------------------------------
> 2 files changed, 33 insertions(+), 33 deletions(-)
>
> diff --git a/kernel/sched/cpufreq.c b/kernel/sched/cpufreq.c
> index 7c2fe50fd76d..82f2dda61a55 100644
> --- a/kernel/sched/cpufreq.c
> +++ b/kernel/sched/cpufreq.c
> @@ -75,3 +75,36 @@ bool cpufreq_this_cpu_can_update(struct cpufreq_policy *policy)
> (policy->dvfs_possible_from_any_cpu &&
> rcu_dereference_sched(*this_cpu_ptr(&cpufreq_update_util_data)));
> }
> +
> +#ifdef CONFIG_ENERGY_MODEL
> +extern bool sched_energy_update;
> +extern struct mutex sched_energy_mutex;
> +
> +static void rebuild_sd_workfn(struct work_struct *work)
> +{
> + mutex_lock(&sched_energy_mutex);
> + sched_energy_update = true;
> + rebuild_sched_domains();
> + sched_energy_update = false;
> + mutex_unlock(&sched_energy_mutex);
> +}
> +static DECLARE_WORK(rebuild_sd_work, rebuild_sd_workfn);
> +
> +/*
> + * EAS shouldn't be attempted without sugov, so rebuild the sched_domains
> + * on governor changes to make sure the scheduler knows about it.
> + */
In the previous patch, you removed reference to schedutil and replaced it with
" an EAS-compatible CPUfreq governor (schedutil)". May be you could do the
same here.
Thanks,
Pavan
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2020-05-08 5:35 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-07 18:09 [PATCH 00/14] Modularize schedutil Quentin Perret
2020-05-07 18:09 ` [PATCH 01/14] sched: Provide sched_set_deadline() Quentin Perret
2020-05-07 18:10 ` [PATCH 02/14] sched: cpufreq: Use sched_set_deadline() from sugov Quentin Perret
2020-05-07 18:10 ` [PATCH 03/14] sched: cpufreq: Introduce 'want_eas' governor flag Quentin Perret
2020-05-07 18:10 ` [PATCH 04/14] sched: cpufreq: Move sched_cpufreq_governor_change() Quentin Perret
2020-05-08 5:35 ` Pavan Kondeti [this message]
2020-05-08 13:18 ` Quentin Perret
2020-05-07 18:10 ` [PATCH 05/14] sched: cpufreq: Move schedutil_cpu_util() Quentin Perret
2020-05-07 18:10 ` [PATCH 06/14] arch_topology: Export cpu_scale per-cpu array Quentin Perret
2020-05-07 18:10 ` [PATCH 07/14] kthread: Export kthread_bind_mask() Quentin Perret
2020-05-07 18:10 ` [PATCH 08/14] sched/core: Export runqueues per-cpu array Quentin Perret
2020-05-08 8:07 ` Peter Zijlstra
2020-05-08 10:04 ` Quentin Perret
2020-05-07 18:10 ` [PATCH 09/14] sched/cpufreq: Export cpufreq_this_cpu_can_update() Quentin Perret
2020-05-07 18:10 ` [PATCH 10/14] sched/fair: Export cpu_util_freq() Quentin Perret
2020-05-07 18:10 ` [PATCH 11/14] tick/sched: Export tick_nohz_get_idle_calls_cpu Quentin Perret
2020-05-07 18:10 ` [PATCH 12/14] x86: Export arch_scale_freq_key Quentin Perret
2020-05-07 18:10 ` [PATCH 13/14] sched: cpufreq: Use IS_ENABLED() for schedutil Quentin Perret
2020-05-08 5:30 ` Pavan Kondeti
2020-05-08 13:21 ` Quentin Perret
2020-05-09 2:43 ` Pavan Kondeti
2020-05-07 18:10 ` [PATCH 14/14] sched: cpufreq: Modularize schedutil Quentin Perret
2020-05-07 21:34 ` [PATCH 00/14] " Valentin Schneider
2020-05-08 13:15 ` Quentin Perret
2020-05-08 14:52 ` Valentin Schneider
2020-05-08 5:33 ` Viresh Kumar
2020-05-08 13:18 ` Quentin Perret
2020-05-08 8:11 ` Peter Zijlstra
2020-05-08 10:37 ` Greg KH
2020-05-08 11:16 ` Quentin Perret
2020-05-08 11:31 ` Peter Zijlstra
2020-05-08 13:05 ` Quentin Perret
2020-05-08 13:40 ` Rafael J. Wysocki
2020-05-11 9:00 ` Quentin Perret
2020-05-11 15:26 ` Rafael J. Wysocki
2020-05-12 9:21 ` Quentin Perret
2020-05-12 10:25 ` Rafael J. Wysocki
2020-05-12 13:58 ` Quentin Perret
2020-05-12 14:08 ` Rafael J. Wysocki
2020-05-12 15:11 ` Quentin Perret
2020-05-12 15:30 ` Rafael J. Wysocki
2020-05-12 15:49 ` Joel Fernandes
2020-05-13 8:57 ` Quentin Perret
2020-05-12 16:26 ` Quentin Perret
2020-05-12 17:30 ` Rafael J. Wysocki
2020-05-13 9:41 ` Quentin Perret
2020-05-13 10:02 ` Greg KH
2020-05-13 10:06 ` Quentin Perret
2020-05-13 10:24 ` Greg KH
2020-05-08 14:09 ` Peter Zijlstra
2020-05-11 9:12 ` Quentin Perret
2020-05-08 11:26 ` Peter Zijlstra
2020-05-11 5:21 ` Viresh Kumar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200508053523.GH19464@codeaurora.org \
--to=pkondeti@codeaurora.org \
--cc=bp@alien8.de \
--cc=bsegall@google.com \
--cc=dietmar.eggemann@arm.com \
--cc=fweisbec@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=hpa@zytor.com \
--cc=juri.lelli@redhat.com \
--cc=keescook@chromium.org \
--cc=kernel-team@android.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=mcgrof@kernel.org \
--cc=mgorman@suse.de \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=qperret@google.com \
--cc=rafael@kernel.org \
--cc=rostedt@goodmis.org \
--cc=sudeep.holla@arm.com \
--cc=tglx@linutronix.de \
--cc=tkjos@google.com \
--cc=vincent.guittot@linaro.org \
--cc=viresh.kumar@linaro.org \
--cc=x86@kernel.org \
--cc=yzaikin@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).