From: Sudeep Holla <sudeep.holla@arm.com>
To: Maulik Shah <quic_mkshah@quicinc.com>
Cc: andersson@kernel.org, ulf.hansson@linaro.org,
dianders@chromium.org, Sudeep Holla <sudeep.holla@arm.com>,
swboyd@chromium.org, wingers@google.com,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org, jwerner@chromium.org,
quic_lsrao@quicinc.com, quic_rjendra@quicinc.com
Subject: Re: [PATCH v2 0/2] Use PSCI OS initiated mode for sc7280
Date: Thu, 30 Mar 2023 10:38:08 +0100 [thread overview]
Message-ID: <20230330093808.iytdskjjawgnvu23@bogus> (raw)
In-Reply-To: <20230330084250.32600-1-quic_mkshah@quicinc.com>
On Thu, Mar 30, 2023 at 02:12:48PM +0530, Maulik Shah wrote:
> Changes in v2:
> - Add new change to Move enabling OSI mode after power domains creation
> - Fix compatible string to domains-idle-states for cluster idle state.
> - Update cover letter with some more details on OSI and PC mode comparision
>
> The dependency [2] is now merged in trustedfirmware project.
>
> Stats comparision between OSI and PC mode are captured at [3] with usecase
> details, where during multiple CPUs online the residency in cluster idle
> state is better with OSI and also inline with single CPU mode. In PC mode
> with multiple CPUs cluster idle state residency is dropping compare to
> single CPU mode.
>
> Recording of this meeting is also available at [4].
>
> This change adds power-domains for cpuidle states to use PSCI OS
> initiated mode for sc7280.
>
> This change depends on external project changes [1] & [2] which are
> under review/discussion to add PSCI os-initiated support in Arm Trusted
> Firmware.
>
I will wait for your response to understand the issue in 1/2. If it is
firmware issue, I prefer we fix it in the firmware and no quirks or work
around for this in the kernel while it is still fresh out of oven.
--
Regards,
Sudeep
prev parent reply other threads:[~2023-03-30 9:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-30 8:42 [PATCH v2 0/2] Use PSCI OS initiated mode for sc7280 Maulik Shah
2023-03-30 8:42 ` [PATCH v2 1/2] cpuidle: psci: Move enabling OSI mode after power domains creation Maulik Shah
2023-03-30 9:34 ` Sudeep Holla
2023-03-30 12:06 ` Ulf Hansson
2023-03-30 13:13 ` Sudeep Holla
2023-03-31 1:46 ` Wing Li
[not found] ` <CADut4F3UmMXCYHeE6sXfoJtgEp36Fv65Poe1Z0JKT0DETyaowQ@mail.gmail.com>
2023-03-31 14:27 ` Sudeep Holla
2023-03-30 12:19 ` Ulf Hansson
2023-03-30 8:42 ` [PATCH v2 2/2] arm64: dts: qcom: sc7280: Add power-domains for cpuidle states Maulik Shah
2023-03-30 12:21 ` Ulf Hansson
2023-03-30 9:38 ` Sudeep Holla [this message]
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