From: Lukasz Luba <lukasz.luba@arm.com>
To: rjw@rjwysocki.net
Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
linux-doc@vger.kernel.org, devicetree@vger.kernel.org,
robh+dt@kernel.org, amitk@kernel.org, corbet@lwn.net,
daniel.lezcano@linaro.org, Dietmar.Eggemann@arm.com,
qperret@google.com, dianders@chromium.org, mka@chromium.org,
rnayak@codeaurora.org
Subject: Re: [PATCH v2 0/3] Clarify abstract scale usage for power values in Energy Model, EAS and IPA
Date: Fri, 9 Oct 2020 10:16:17 +0100 [thread overview]
Message-ID: <d2960f6a-1805-1fb4-98ae-4a756d20370b@arm.com> (raw)
In-Reply-To: <20201002114426.31277-1-lukasz.luba@arm.com>
Hi Rafael,
On 10/2/20 12:44 PM, Lukasz Luba wrote:
> Hi all,
>
> The Energy Model supports power values expressed in an abstract scale.
> This has an impact on Intelligent Power Allocation (IPA) and should be
> documented properly. There is also a need to update the DT binding for the
> 'sustainable-power' and allow it to have abstract scale as well.
>
> Changes:
> v2:
> - updated sustainable power section in IPA documentation
> - updated DT binding for the 'sustainable-power'
>
> The v1 of the patch set and related discussion can be found in [1].
>
> Regards,
> Lukasz Luba
>
> [1] https://lore.kernel.org/linux-doc/20200929121610.16060-1-lukasz.luba@arm.com/
>
> Lukasz Luba (3):
> docs: Clarify abstract scale usage for power values in Energy Model
> PM / EM: update the comments related to power scale
> dt-bindings: thermal: update sustainable-power with abstract scale
>
> .../devicetree/bindings/thermal/thermal-zones.yaml | 13 +++++++++----
> .../driver-api/thermal/power_allocator.rst | 13 ++++++++++++-
> Documentation/power/energy-model.rst | 13 +++++++++++++
> Documentation/scheduler/sched-energy.rst | 5 +++++
> include/linux/energy_model.h | 11 +++++------
> kernel/power/energy_model.c | 2 +-
> 6 files changed, 45 insertions(+), 12 deletions(-)
>
Could you take patch 1/3 and patch 2/3 via your PM tree,
please? I will be very grateful.
These patches just update the documentation and comments regarding
an issue that we can have: bogoWatts in the Energy Model (and we
already have). One of the drawbacks is that we cannot derive real energy
from these numbers. Will see how this would evolve.
The patch 3/3 with dt-binding is not going to fly upstream [1].
I hope developers will put a real number in DT so we could
have real milliWatts from that source (wishful thinking).
Doug even made a script, which might be helpful for that [2].
Regards,
Lukasz
[1]
https://lore.kernel.org/linux-pm/45fae8cd-0635-41dc-c744-3c9833bf6492@arm.com/
[2]
https://lore.kernel.org/linux-pm/CAD=FV=U1FP0e3_AVHpauUUZtD-5X3XCwh5aT9fH_8S_FFML2Uw@mail.gmail.com/
next prev parent reply other threads:[~2020-10-09 9:16 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-02 11:44 [PATCH v2 0/3] Clarify abstract scale usage for power values in Energy Model, EAS and IPA Lukasz Luba
2020-10-02 11:44 ` [PATCH v2 1/3] docs: Clarify abstract scale usage for power values in Energy Model Lukasz Luba
2020-10-02 11:44 ` [PATCH v2 2/3] PM / EM: update the comments related to power scale Lukasz Luba
2020-10-02 11:44 ` [PATCH v2 3/3] dt-bindings: thermal: update sustainable-power with abstract scale Lukasz Luba
2020-10-02 14:31 ` Doug Anderson
2020-10-02 15:12 ` Lukasz Luba
2020-10-02 15:47 ` Doug Anderson
2020-10-02 16:40 ` Lukasz Luba
2020-10-02 17:39 ` Doug Anderson
2020-10-06 22:24 ` Rob Herring
2020-10-07 1:17 ` Doug Anderson
2020-10-07 13:26 ` Rob Herring
2020-10-07 21:40 ` Doug Anderson
2020-10-08 14:20 ` Lukasz Luba
2020-10-08 16:41 ` Doug Anderson
2020-10-07 9:03 ` Lukasz Luba
2020-10-05 13:58 ` Rob Herring
2020-10-05 16:14 ` Lukasz Luba
2020-10-09 9:16 ` Lukasz Luba [this message]
2020-10-14 8:22 ` [PATCH v2 0/3] Clarify abstract scale usage for power values in Energy Model, EAS and IPA Daniel Lezcano
2020-10-14 9:08 ` Lukasz Luba
2020-10-14 11:23 ` Daniel Lezcano
2020-10-14 15:24 ` Lukasz Luba
2020-10-14 17:10 ` Daniel Lezcano
2020-10-15 9:00 ` Lukasz Luba
2020-10-15 10:21 ` Daniel Lezcano
2020-10-15 13:40 ` Rafael J. Wysocki
2020-10-15 15:04 ` Quentin Perret
2020-10-16 11:48 ` Daniel Lezcano
2020-10-16 12:18 ` Quentin Perret
2020-10-16 12:50 ` Daniel Lezcano
2020-10-16 13:09 ` Quentin Perret
2020-10-16 14:36 ` Doug Anderson
2020-10-16 15:55 ` Quentin Perret
2020-10-16 14:42 ` Lukasz Luba
2020-10-16 16:02 ` Quentin Perret
2020-10-19 10:35 ` Lukasz Luba
2020-10-15 13:33 ` Rafael J. Wysocki
2020-10-15 13:39 ` Daniel Lezcano
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=d2960f6a-1805-1fb4-98ae-4a756d20370b@arm.com \
--to=lukasz.luba@arm.com \
--cc=Dietmar.Eggemann@arm.com \
--cc=amitk@kernel.org \
--cc=corbet@lwn.net \
--cc=daniel.lezcano@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=dianders@chromium.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=mka@chromium.org \
--cc=qperret@google.com \
--cc=rjw@rjwysocki.net \
--cc=rnayak@codeaurora.org \
--cc=robh+dt@kernel.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).