linux-kernel - [PATCH V2 0/4] firmware: arm_scmi: Register and handle limits change notification

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Message-ID: <20240117104116.2055349-1-quic_sibis@quicinc.com>
Date: Wed, 17 Jan 2024 16:11:12 +0530
From: Sibi Sankar <quic_sibis@...cinc.com>
To: <sudeep.holla@....com>, <cristian.marussi@....com>, <rafael@...nel.org>,
        <viresh.kumar@...aro.org>, <morten.rasmussen@....com>,
        <dietmar.eggemann@....com>, <lukasz.luba@....com>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_mdtipton@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, Sibi Sankar <quic_sibis@...cinc.com>
Subject: [PATCH V2 0/4] firmware: arm_scmi: Register and handle limits change notification

This series registers for scmi limits change notifications and adds
perf_notify_support/perf_opp_xlate interfaces which are used by the
scmi cpufreq driver to determine the throttled frequency and apply HW
pressure.

V2:
* Rename opp_xlate -> freq_xlate [Viresh]
* Export cpufreq_update_pressure and use it directly [Lukasz]

Depends on:
HW pressure v4: https://patchwork.kernel.org/project/linux-arm-msm/cover/20240109164655.626085-1-vincent.guittot@linaro.org/

Sibi Sankar (4):
  firmware: arm_scmi: Add perf_notify_support interface
  firmware: arm_scmi: Add perf_freq_xlate interface
  cpufreq: Export cpufreq_update_pressure
  cpufreq: scmi: Register for limit change notifications

 drivers/cpufreq/cpufreq.c        |  3 ++-
 drivers/cpufreq/scmi-cpufreq.c   | 42 +++++++++++++++++++++++++++++++-
 drivers/firmware/arm_scmi/perf.c | 37 ++++++++++++++++++++++++++++
 include/linux/cpufreq.h          |  2 ++
 include/linux/scmi_protocol.h    | 11 +++++++++
 5 files changed, 93 insertions(+), 2 deletions(-)

-- 
2.34.1