linux-kernel - Re: [RESEND v4 3/3] arm64: dts: qcom: sc7280: Add power-domains for cpuidle states

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Fri, 15 Mar 2024 10:12:12 -0700
From: Doug Anderson <dianders@...omium.org>
To: Sudeep Holla <sudeep.holla@....com>
Cc: Maulik Shah <quic_mkshah@...cinc.com>, andersson@...nel.org, ulf.hansson@...aro.org, 
	swboyd@...omium.org, wingers@...gle.com, daniel.lezcano@...aro.org, 
	rafael@...nel.org, linux-arm-msm@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, jwerner@...omium.org, 
	quic_lsrao@...cinc.com, quic_rjendra@...cinc.com, devicetree@...r.kernel.org, 
	Abhinav Kumar <quic_abhinavk@...cinc.com>, Jessica Zhang <quic_jesszhan@...cinc.com>, 
	Rob Clark <robdclark@...omium.org>
Subject: Re: [RESEND v4 3/3] arm64: dts: qcom: sc7280: Add power-domains for
 cpuidle states

Hi,

On Fri, Mar 15, 2024 at 8:24 AM Sudeep Holla <sudeep.holla@....com> wrote:
>
> On Thu, Mar 14, 2024 at 04:20:59PM -0700, Doug Anderson wrote:
> > Hi,
> >
> > On Mon, Jul 3, 2023 at 1:56 AM Maulik Shah <quic_mkshah@...cinccom> wrote:
> > >
> > > Add power-domains for cpuidle states to use psci os-initiated idle states.
> > >
> > > Cc: devicetree@...r.kernel.org
> > > Reviewed-by: Ulf Hansson <ulf.hansson@...aro.org>
> > > Signed-off-by: Maulik Shah <quic_mkshah@...cinc.com>
> > > ---
> > >  arch/arm64/boot/dts/qcom/sc7280.dtsi | 98 +++++++++++++++++++++-------
> > >  1 file changed, 73 insertions(+), 25 deletions(-)
> >
> > FWIW, I dug up an old sc7280-herobrine board to test some other change
> > and found it no longer booted. :( I bisected it and this is the change
> > that breaks it. Specifically, I can make mainline boot with:
> >
> > git revert --no-edit db5d137e81bc # arm64: dts: qcom: sc7280: Update
> > domain-idle-states for cluster sleep
> > git revert --no-edit 7925ca85e956 # arm64: dts: qcom: sc7280: Add
> > power-domains for cpuidle states
> >
>
> IIRC, this could be issue with psci firmware. There were some known
> issues which were discussed few years back but I am not aware of the
> details and if/how it is applicable here.
>
> Not sure if you are getting any logs during the boot, if you do have
> worth look at logs related to PSCI/OSI/Idle/...

Given that the new firmware fixes it I'm going to say it's not worth
looking into any longer.

-Doug