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From: Lukasz Luba <lukasz.luba@arm.com>
To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	vireshk@kernel.org, robh+dt@kernel.org
Cc: sboyd@kernel.org, nm@ti.com, rafael@kernel.org,
	sudeep.holla@arm.com, daniel.lezcano@linaro.org,
	Dietmar.Eggemann@arm.com, lukasz.luba@arm.com
Subject: [PATCH 0/4] Add sustainable OPP concept
Date: Wed, 28 Oct 2020 14:08:43 +0000	[thread overview]
Message-ID: <20201028140847.1018-1-lukasz.luba@arm.com> (raw)

Hi all,

This patch set introduces a concept of sustainable OPP, which then can be used
by kernel frameworks or governors for estimating system sustainable system
state. This kind of estimation is done e.g. in thermal governor Intelligent
Power Allocation (IPA), which calculates sustainable power of the whole system
and then derives some coefficients for internal algorithm.

The patch set introduces a new DT bindings 'opp-sustainable', with parsing
code. It also adds a function (in patch 3/4) which allows device drivers to set
directly the sustainable OPP. This is helpful when the device drivers populate
the OPP table by themself (example in patch 4/4).

The patch set should apply on top of next-20201028.

Regards,
Lukasz Luba

Lukasz Luba (4):
  dt-bindings: opp: Introduce opp-sustainable bindings
  OPP: Add support for parsing the 'opp-sustainable' property
  OPP: Add dev_pm_opp_set_sustainable_opp_freq()
  firmware: arm_scmi/perf: Mark sustainable OPP

 Documentation/devicetree/bindings/opp/opp.txt |  4 +
 drivers/firmware/arm_scmi/perf.c              | 10 +++
 drivers/opp/core.c                            | 75 +++++++++++++++++++
 drivers/opp/of.c                              | 14 ++++
 drivers/opp/opp.h                             |  3 +
 include/linux/pm_opp.h                        | 14 ++++
 6 files changed, 120 insertions(+)

-- 
2.17.1


             reply	other threads:[~2020-10-28 22:27 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-28 14:08 Lukasz Luba [this message]
2020-10-28 14:08 ` [PATCH 1/4] dt-bindings: opp: Introduce opp-sustainable bindings Lukasz Luba
2020-10-28 21:47   ` Nishanth Menon
2020-10-29 10:04     ` Lukasz Luba
2020-10-29 12:59       ` Nishanth Menon
2020-10-29 13:33         ` Lukasz Luba
2020-10-29 13:49           ` Nishanth Menon
2020-10-29 14:20             ` Lukasz Luba
2020-10-30 19:34   ` Rob Herring
2020-11-02  8:40     ` Lukasz Luba
2020-10-28 14:08 ` [PATCH 2/4] OPP: Add support for parsing the 'opp-sustainable' property Lukasz Luba
2020-10-30 11:47   ` Quentin Perret
2020-10-30 12:53     ` Lukasz Luba
2020-10-28 14:08 ` [PATCH 3/4] OPP: Add dev_pm_opp_set_sustainable_opp_freq() Lukasz Luba
2020-10-28 14:08 ` [PATCH 4/4] firmware: arm_scmi/perf: Mark sustainable OPP Lukasz Luba
2020-10-29  7:40 ` [PATCH 0/4] Add sustainable OPP concept Viresh Kumar
2020-10-29  7:53   ` Viresh Kumar
2020-10-29  9:56     ` Lukasz Luba
2020-10-30  8:29       ` Viresh Kumar
2020-10-30  9:19         ` Lukasz Luba
2020-10-30  9:52           ` Viresh Kumar
2020-10-30 10:56             ` Lukasz Luba
2020-10-30 11:17               ` Viresh Kumar
2020-10-30 12:40                 ` Lukasz Luba

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