From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>,
Linux PM <linux-pm@vger.kernel.org>,
Stephen Boyd <sboyd@kernel.org>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
"Rafael J . Wysocki" <rjw@rjwysocki.net>,
Andy Gross <agross@kernel.org>, Lina Iyer <ilina@codeaurora.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Kevin Hilman <khilman@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Sudeep Holla <sudeep.holla@arm.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v5 00/15] cpuidle: psci: Support hierarchical CPU arrangement
Date: Tue, 31 Dec 2019 11:43:25 +0100 [thread overview]
Message-ID: <CAJZ5v0gSY_Zg+sbBEfTaeBCiOf_L6JP4_-4tdpeFU0iCGJu3Nw@mail.gmail.com> (raw)
In-Reply-To: <CAPDyKFrVQO-WFOfX_EKVTUYnesGj93GQMKxFNpbMt6s3xv_qBw@mail.gmail.com>
On Tue, Dec 31, 2019 at 11:38 AM Ulf Hansson <ulf.hansson@linaro.org> wrote:
>
> Rafael,
>
> On Mon, 30 Dec 2019 at 15:44, Ulf Hansson <ulf.hansson@linaro.org> wrote:
> >
> > Changes in v5:
> > - Remove PM domains in the error path, when failing to enable OSI.
> > - Folded in a patch that adds a genpd OF helper to remove subdomains.
> > - Added reviewed-by tags.
> >
> > Changes in v4:
> > - Move the check for OSI support from psci_dt_attach_cpu() to the
> > caller's side of it.
> > - Add comment in the code about using the deepest idle state as the
> > triggering point for the domain state selection.
> > - Folded in a patch to enable support for CPU hotplug.
> >
> > Changes in v3:
> > - Take one step further to completely avoid executing any OSI specific
> > code from the ->enter() callback, while operating in the default PSCI
> > Platform Coordinated mode.
> > - Update example for the PSCI DT bindings to make it compile with
> > "make dt_binding_check"
> >
> > Changes in v2:
> > - Avoid to affect the non-OSI path with specific changes for OSI. This
> > forced me to re-order the series and a caused more or less minor changes
> > to most of the patches.
> > - Updated the DT bindings for PSCI to clarify and to include the "psci"
> > name of the PM domain to attach to.
> > - Replaced patch1 with another patch from Sudeep, solving the same
> > problem, but in a different way.
> >
> > This series enables initial support for hierarchical CPU arrangement, managed
> > by PSCI and its corresponding cpuidle driver. It's based on using the generic
> > PM domain (genpd), which nowadays also supports devices belonging to CPUs.
> >
> > The last DTS patch enables the hierarchical topology to be used for the Qcom
> > 410c Dragonboard, which supports the PSCI OS-initiated mode.
> >
> > More detailed background can be found from previous submissions [1].
> >
> > The series is also available at:
> > git.linaro.org/people/ulf.hansson/linux-pm.git next
> >
> > Kind regards
> > Ulf Hansson
> >
> > [1]
> > https://lwn.net/Articles/788306/
> >
> > Lina Iyer (1):
> > cpuidle: dt: Support hierarchical CPU idle states
> >
> > Sudeep Holla (1):
> > cpuidle: psci: Align psci_power_state count with idle state count
> >
> > Ulf Hansson (13):
> > dt: psci: Update DT bindings to support hierarchical PSCI states
> > firmware: psci: Export functions to manage the OSI mode
> > of: base: Add of_get_cpu_state_node() to get idle states for a CPU
> > node
> > cpuidle: psci: Simplify OF parsing of CPU idle state nodes
> > cpuidle: psci: Support hierarchical CPU idle states
> > cpuidle: psci: Add a helper to attach a CPU to its PM domain
> > cpuidle: psci: Attach CPU devices to their PM domains
> > cpuidle: psci: Prepare to use OS initiated suspend mode via PM domains
> > cpuidle: psci: Manage runtime PM in the idle path
> > cpuidle: psci: Support CPU hotplug for the hierarchical model
> > PM / Domains: Introduce a genpd OF helper that removes a subdomain
> > cpuidle: psci: Add support for PM domains by using genpd
> > arm64: dts: Convert to the hierarchical CPU topology layout for
> > MSM8916
> >
> > .../devicetree/bindings/arm/cpus.yaml | 15 +
> > .../devicetree/bindings/arm/psci.yaml | 104 ++++++
> > arch/arm64/boot/dts/qcom/msm8916.dtsi | 57 +++-
> > drivers/base/power/domain.c | 38 +++
> > drivers/cpuidle/Makefile | 4 +-
> > drivers/cpuidle/cpuidle-psci-domain.c | 308 ++++++++++++++++++
> > drivers/cpuidle/cpuidle-psci.c | 161 +++++++--
> > drivers/cpuidle/cpuidle-psci.h | 17 +
> > drivers/cpuidle/dt_idle_states.c | 5 +-
> > drivers/firmware/psci/psci.c | 18 +-
> > drivers/of/base.c | 36 ++
> > include/linux/cpuhotplug.h | 1 +
> > include/linux/of.h | 8 +
> > include/linux/pm_domain.h | 8 +
> > include/linux/psci.h | 2 +
> > 15 files changed, 747 insertions(+), 35 deletions(-)
> > create mode 100644 drivers/cpuidle/cpuidle-psci-domain.c
> > create mode 100644 drivers/cpuidle/cpuidle-psci.h
> >
> > --
> > 2.17.1
> >
>
> This series is ready to go (unless you have some objections of
> course), would you mind queuing it up?
>
> Of course, patch15 can be left for arm-soc.
>
> If you prefer a pull-request, just tell me.
So I would prefer arm-soc to take the whole lot if that's not a problem.
Feel free to add ACKs from me to the patches for this purpose if that helps
Thanks!
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-12-31 10:43 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-30 14:43 [PATCH v5 00/15] cpuidle: psci: Support hierarchical CPU arrangement Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 01/15] cpuidle: psci: Align psci_power_state count with idle state count Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 02/15] dt: psci: Update DT bindings to support hierarchical PSCI states Ulf Hansson
2020-01-13 19:53 ` Rob Herring
2020-01-14 17:54 ` Ulf Hansson
2020-01-16 18:19 ` Rob Herring
2020-01-17 16:41 ` Ulf Hansson
2020-01-17 17:36 ` Rob Herring
2020-01-20 12:56 ` Ulf Hansson
2020-01-21 16:59 ` Rob Herring
2020-02-24 21:07 ` Rob Herring
2020-02-25 8:49 ` Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 03/15] firmware: psci: Export functions to manage the OSI mode Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 04/15] of: base: Add of_get_cpu_state_node() to get idle states for a CPU node Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 05/15] cpuidle: dt: Support hierarchical CPU idle states Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 06/15] cpuidle: psci: Simplify OF parsing of CPU idle state nodes Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 07/15] cpuidle: psci: Support hierarchical CPU idle states Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 08/15] cpuidle: psci: Add a helper to attach a CPU to its PM domain Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 09/15] cpuidle: psci: Attach CPU devices to their PM domains Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 10/15] cpuidle: psci: Prepare to use OS initiated suspend mode via " Ulf Hansson
2019-12-30 16:35 ` Sudeep Holla
2019-12-31 10:31 ` Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 11/15] cpuidle: psci: Manage runtime PM in the idle path Ulf Hansson
2019-12-30 14:43 ` [PATCH v5 12/15] cpuidle: psci: Support CPU hotplug for the hierarchical model Ulf Hansson
2019-12-30 14:44 ` [PATCH v5 13/15] PM / Domains: Introduce a genpd OF helper that removes a subdomain Ulf Hansson
2019-12-30 14:44 ` [PATCH v5 14/15] cpuidle: psci: Add support for PM domains by using genpd Ulf Hansson
2019-12-30 16:38 ` Sudeep Holla
2019-12-31 10:32 ` Ulf Hansson
2019-12-30 14:44 ` [PATCH v5 15/15] arm64: dts: Convert to the hierarchical CPU topology layout for MSM8916 Ulf Hansson
2019-12-31 10:37 ` [PATCH v5 00/15] cpuidle: psci: Support hierarchical CPU arrangement Ulf Hansson
2019-12-31 10:43 ` Rafael J. Wysocki [this message]
2019-12-31 10:57 ` Ulf Hansson
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=CAJZ5v0gSY_Zg+sbBEfTaeBCiOf_L6JP4_-4tdpeFU0iCGJu3Nw@mail.gmail.com \
--to=rafael@kernel.org \
--cc=Lorenzo.Pieralisi@arm.com \
--cc=agross@kernel.org \
--cc=bjorn.andersson@linaro.org \
--cc=daniel.lezcano@linaro.org \
--cc=ilina@codeaurora.org \
--cc=khilman@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=rjw@rjwysocki.net \
--cc=robh+dt@kernel.org \
--cc=sboyd@kernel.org \
--cc=sudeep.holla@arm.com \
--cc=ulf.hansson@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).