From: Viresh Kumar <viresh.kumar@linaro.org>
To: Rafael Wysocki <rjw@rjwysocki.net>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Cristian Marussi <cristian.marussi@arm.com>,
Fabio Estevam <festevam@gmail.com>,
Kevin Hilman <khilman@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Sascha Hauer <s.hauer@pengutronix.de>,
Shawn Guo <shawnguo@kernel.org>,
Sudeep Holla <sudeep.holla@arm.com>,
Viresh Kumar <viresh.kumar@linaro.org>
Cc: linux-pm@vger.kernel.org,
Vincent Guittot <vincent.guittot@linaro.org>,
Lukasz Luba <lukasz.luba@arm.com>,
Quentin Perret <qperret@google.com>,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mediatek@lists.infradead.org, linux-omap@vger.kernel.org
Subject: [PATCH V2 0/9] cpufreq: Auto-register with energy model
Date: Wed, 11 Aug 2021 17:28:38 +0530 [thread overview]
Message-ID: <cover.1628682874.git.viresh.kumar@linaro.org> (raw)
Many cpufreq drivers register with the energy model for each policy and
do exactly the same thing. Follow the footsteps of thermal-cooling, to
get it done from the cpufreq core itself.
Provide a new callback, which will be called, if present, by the cpufreq
core at the right moment (more on that in the code's comment). Also
provide a generic implementation that uses dev_pm_opp_of_register_em().
This also allows us to register with the EM at a later point of time,
compared to ->init(), from where the EM core can access cpufreq policy
directly using cpufreq_cpu_get() type of helpers and perform other work,
like marking few frequencies inefficient, this will be done separately.
This is build/boot tested by the bot for a couple of boards.
https://gitlab.com/vireshk/pmko/-/pipelines/351525873
Note that I haven't picked any of the Reviewed-by tags from the first version
since the idea is very much changed here.
V1->V2:
- Add a callback instead of flag.
- Register before governor is initialized.
- Update scmi driver as well.
- Don't unregister from the EM core.
--
Viresh
Viresh Kumar (9):
cpufreq: Auto-register with energy model if asked
cpufreq: dt: Use auto-registration for energy model
cpufreq: imx6q: Use auto-registration for energy model
cpufreq: mediatek: Use auto-registration for energy model
cpufreq: omap: Use auto-registration for energy model
cpufreq: qcom-cpufreq-hw: Use auto-registration for energy model
cpufreq: scpi: Use auto-registration for energy model
cpufreq: vexpress: Use auto-registration for energy model
cpufreq: scmi: Use .register_em() callback
drivers/cpufreq/cpufreq-dt.c | 3 +-
drivers/cpufreq/cpufreq.c | 12 ++++++
drivers/cpufreq/imx6q-cpufreq.c | 2 +-
drivers/cpufreq/mediatek-cpufreq.c | 3 +-
drivers/cpufreq/omap-cpufreq.c | 2 +-
drivers/cpufreq/qcom-cpufreq-hw.c | 3 +-
drivers/cpufreq/scmi-cpufreq.c | 55 +++++++++++++++-----------
drivers/cpufreq/scpi-cpufreq.c | 3 +-
drivers/cpufreq/vexpress-spc-cpufreq.c | 3 +-
include/linux/cpufreq.h | 14 +++++++
10 files changed, 65 insertions(+), 35 deletions(-)
--
2.31.1.272.g89b43f80a514
next reply other threads:[~2021-08-11 12:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-11 11:58 Viresh Kumar [this message]
2021-08-11 11:58 ` [PATCH V2 1/9] cpufreq: Auto-register with energy model if asked Viresh Kumar
2021-08-11 13:02 ` Quentin Perret
2021-08-11 14:30 ` Lukasz Luba
2021-08-11 11:58 ` [PATCH V2 2/9] cpufreq: dt: Use auto-registration for energy model Viresh Kumar
2021-08-11 11:58 ` [PATCH V2 3/9] cpufreq: imx6q: " Viresh Kumar
2021-08-11 11:58 ` [PATCH V2 4/9] cpufreq: mediatek: " Viresh Kumar
2021-08-11 11:58 ` [PATCH V2 5/9] cpufreq: omap: " Viresh Kumar
2021-08-11 11:58 ` [PATCH V2 6/9] cpufreq: qcom-cpufreq-hw: " Viresh Kumar
2021-08-11 11:58 ` [PATCH V2 7/9] cpufreq: scpi: " Viresh Kumar
2021-08-11 11:58 ` [PATCH V2 8/9] cpufreq: vexpress: " Viresh Kumar
2021-08-11 11:58 ` [PATCH V2 9/9] cpufreq: scmi: Use .register_em() callback Viresh Kumar
2021-08-11 13:17 ` Quentin Perret
2021-08-11 14:09 ` Lukasz Luba
2021-08-11 14:39 ` Quentin Perret
2021-08-11 15:52 ` Lukasz Luba
2021-08-12 3:53 ` Viresh Kumar
2021-08-11 16:32 ` Lukasz Luba
2021-08-12 4:22 ` 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=cover.1628682874.git.viresh.kumar@linaro.org \
--to=viresh.kumar@linaro.org \
--cc=agross@kernel.org \
--cc=bjorn.andersson@linaro.org \
--cc=cristian.marussi@arm.com \
--cc=festevam@gmail.com \
--cc=kernel@pengutronix.de \
--cc=khilman@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-imx@nxp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=lukasz.luba@arm.com \
--cc=matthias.bgg@gmail.com \
--cc=qperret@google.com \
--cc=rjw@rjwysocki.net \
--cc=s.hauer@pengutronix.de \
--cc=shawnguo@kernel.org \
--cc=sudeep.holla@arm.com \
--cc=vincent.guittot@linaro.org \
/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).