linux-kernel - [RFC 0/7] firmware: arm_scmi: Qualcomm Vendor Protocol

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Message-ID: <20240117173458.2312669-1-quic_sibis@quicinc.com>
Date: Wed, 17 Jan 2024 23:04:51 +0530
From: Sibi Sankar <quic_sibis@...cinc.com>
To: <sudeep.holla@....com>, <cristian.marussi@....com>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <jassisinghbrar@...il.com>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <quic_rgottimu@...cinc.com>,
        <quic_kshivnan@...cinc.com>, <quic_sibis@...cinc.com>,
        <conor+dt@...nel.org>
Subject: [RFC 0/7] firmware: arm_scmi: Qualcomm Vendor Protocol

This patch series introduces the Qualcomm SCMI Vendor protocol and adds a
client driver that interacts with the vendor protocol and passes on the
required tuneables to start various features running on the SCMI controller.

The series specifically enables (LLCC/DDR) dvfs on X1E80100 SoC by passing
several tuneables including the IPM ratio (Instructions Per Miss),
cpu frequency to memory/bus frequency tables, CPU mapping to the vendor
protocol which in turn will enable the memory latency governor running
on the SCMI controller.

Depends on:
limits changed notification v2: https://patchwork.kernel.org/project/linux-arm-msm/cover/20240117104116.2055349-1-quic_sibis@quicinc.com/
Turbo support: https://patchwork.kernel.org/project/linux-arm-msm/cover/20240117110443.2060704-1-quic_sibis@quicinc.com/

Shivnandan Kumar (2):
  firmware: arm_scmi: Add QCOM vendor protocol
  soc: qcom: Utilize qcom scmi vendor protocol for bus dvfs

Sibi Sankar (5):
  dt-bindings: mailbox: qcom: Add CPUCP mailbox controller bindings
  mailbox: Add support for QTI CPUCP mailbox controller
  arm64: dts: qcom: x1e80100: Add cpucp mailbox and sram nodes
  arm64: dts: qcom: x1e80100: Enable cpufreq
  arm64: dts: qcom: x1e80100: Enable LLCC/DDR dvfs

 .../bindings/mailbox/qcom,cpucp-mbox.yaml     |  51 ++
 arch/arm64/boot/dts/qcom/x1e80100.dtsi        | 101 ++++
 drivers/firmware/arm_scmi/Kconfig             |  11 +
 drivers/firmware/arm_scmi/Makefile            |   1 +
 drivers/firmware/arm_scmi/qcom_scmi_vendor.c  | 160 ++++++
 drivers/mailbox/Kconfig                       |   8 +
 drivers/mailbox/Makefile                      |   2 +
 drivers/mailbox/qcom-cpucp-mbox.c             | 265 ++++++++++
 drivers/soc/qcom/Kconfig                      |  10 +
 drivers/soc/qcom/Makefile                     |   1 +
 drivers/soc/qcom/qcom_scmi_client.c           | 486 ++++++++++++++++++
 include/linux/qcom_scmi_vendor.h              |  36 ++
 12 files changed, 1132 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mailbox/qcom,cpucp-mbox.yaml
 create mode 100644 drivers/firmware/arm_scmi/qcom_scmi_vendor.c
 create mode 100644 drivers/mailbox/qcom-cpucp-mbox.c
 create mode 100644 drivers/soc/qcom/qcom_scmi_client.c
 create mode 100644 include/linux/qcom_scmi_vendor.h

-- 
2.34.1