linux-kernel - [PATCH 00/15] Unregister critical branch clocks + some RPM

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-next>] [day] [month] [year] [list]

Message-Id: <20230717-topic-branch_aon_cleanup-v1-0-27784d27a4f4@linaro.org>
Date:   Mon, 17 Jul 2023 17:19:07 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 00/15] Unregister critical branch clocks + some RPM

On Qualcomm SoCs, certain branch clocks either need to be always-on, or
should be if you're interested in touching some part of the hardware.

Using CLK_IS_CRITICAL for this purpose sounds like a genius idea,
however that messes with the runtime pm handling - if a clock is
marked as such, the clock controller device will never enter the
"suspended" state, leaving the associated resources online, which in
turn breaks SoC-wide suspend.

This series aims to solve that on a couple SoCs that I could test the
changes on and it sprinkles some runtime pm enablement atop these drivers.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
Konrad Dybcio (15):
      clk: qcom: branch: Add a helper for setting the enable bit
      clk: qcom: Use qcom_branch_set_clk_en()
      clk: qcom: gcc-sm6375: Unregister critical clocks
      clk: qcom: gcc-sm6375: Add runtime PM
      clk: qcom: gpucc-sm6375: Unregister critical clocks
      clk: qcom: gpucc-sm6115: Unregister critical clocks
      clk: qcom: gpucc-sm6115: Add runtime PM
      clk: qcom: gcc-sm6115: Unregister critical clocks
      clk: qcom: gcc-sm6115: Add runtime PM
      clk: qcom: gcc-qcm2290: Unregister critical clocks
      clk: qcom: gcc-qcm2290: Add runtime PM
      arm64: dts: qcom: sm6375: Add VDD_CX to GCC
      arm64: dts: qcom: qcm2290: Add VDD_CX to GCC
      arm64: dts: qcom: sm6115: Add VDD_CX to GCC
      arm64: dts: qcom: sm6115: Add VDD_CX to GPU_CCC

 arch/arm64/boot/dts/qcom/qcm2290.dtsi |   1 +
 arch/arm64/boot/dts/qcom/sm6115.dtsi  |   3 +
 arch/arm64/boot/dts/qcom/sm6375.dtsi  |   1 +
 drivers/clk/qcom/clk-branch.h         |   7 ++
 drivers/clk/qcom/dispcc-qcm2290.c     |   2 +-
 drivers/clk/qcom/dispcc-sc7280.c      |   2 +-
 drivers/clk/qcom/dispcc-sc8280xp.c    |   2 +-
 drivers/clk/qcom/dispcc-sm6115.c      |   2 +-
 drivers/clk/qcom/dispcc-sm8250.c      |   2 +-
 drivers/clk/qcom/dispcc-sm8450.c      |   2 +-
 drivers/clk/qcom/dispcc-sm8550.c      |   2 +-
 drivers/clk/qcom/gcc-qcm2290.c        | 136 ++++++++---------------------
 drivers/clk/qcom/gcc-sa8775p.c        |  18 ++--
 drivers/clk/qcom/gcc-sc7180.c         |  16 ++--
 drivers/clk/qcom/gcc-sc7280.c         |  14 +--
 drivers/clk/qcom/gcc-sc8180x.c        |  20 ++---
 drivers/clk/qcom/gcc-sc8280xp.c       |  18 ++--
 drivers/clk/qcom/gcc-sdx55.c          |   2 +-
 drivers/clk/qcom/gcc-sdx65.c          |   2 +-
 drivers/clk/qcom/gcc-sdx75.c          |   4 +-
 drivers/clk/qcom/gcc-sm6115.c         | 155 ++++++++--------------------------
 drivers/clk/qcom/gcc-sm6375.c         |  34 +++++---
 drivers/clk/qcom/gcc-sm7150.c         |  16 ++--
 drivers/clk/qcom/gcc-sm8250.c         |  12 +--
 drivers/clk/qcom/gcc-sm8350.c         |  14 +--
 drivers/clk/qcom/gcc-sm8450.c         |  14 +--
 drivers/clk/qcom/gcc-sm8550.c         |  14 +--
 drivers/clk/qcom/gpucc-sc7280.c       |   4 +-
 drivers/clk/qcom/gpucc-sc8280xp.c     |   4 +-
 drivers/clk/qcom/gpucc-sm6115.c       |  57 ++++++-------
 drivers/clk/qcom/gpucc-sm6375.c       |  38 ++-------
 drivers/clk/qcom/gpucc-sm8550.c       |   4 +-
 drivers/clk/qcom/lpasscorecc-sc7180.c |   2 +-
 drivers/clk/qcom/videocc-sm8250.c     |   4 +-
 drivers/clk/qcom/videocc-sm8350.c     |   4 +-
 drivers/clk/qcom/videocc-sm8450.c     |   6 +-
 drivers/clk/qcom/videocc-sm8550.c     |   6 +-
 37 files changed, 245 insertions(+), 399 deletions(-)
---
base-commit: 2205be537aeb1ca2ace998e2fefaa2be04e393e4
change-id: 20230717-topic-branch_aon_cleanup-6976c13fe71c

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@...aro.org>