linux-kernel - [PATCH v3 0/6] Add support for GPU DDR BW scaling

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Date:   Sat,  6 Jun 2020 09:55:45 +0530
From:   Sharat Masetty <smasetty@...eaurora.org>
To:     freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org
Cc:     dri-devel@...edesktop.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, jcrouse@...eaurora.org,
        mka@...omium.org, sibis@...eaurora.org, saravanak@...gle.com,
        viresh.kumar@...aro.org, robdclark@...il.com,
        Sharat Masetty <smasetty@...eaurora.org>
Subject: [PATCH v3 0/6] Add support for GPU DDR BW scaling

This is a respin of [1]. Incorported review feedback and fixed issues observed
during testing. Picked up the Georgi's series from opp/linux-next [2], and this
series is also dependent on a helper function needed to set and clear ddr
bandwidth vote [3]. Patch number 4 in the series adds support for SDM845 as well
but its not tested yet(WIP), but the SC7180 patches are well tested now.

[1] https://patchwork.freedesktop.org/series/75291/
[2] https://kernel.googlesource.com/pub/scm/linux/kernel/git/vireshk/pm/+log/opp/linux-next/
[3] https://patchwork.kernel.org/patch/11590563/

Sharat Masetty (6):
  dt-bindings: drm/msm/gpu: Document gpu opp table
  drm: msm: a6xx: send opp instead of a frequency
  drm: msm: a6xx: use dev_pm_opp_set_bw to scale DDR
  arm64: dts: qcom: SDM845: Enable GPU DDR bw scaling
  arm64: dts: qcom: sc7180: Add interconnects property for GPU
  arm64: dts: qcom: sc7180: Add opp-peak-kBps to GPU opp

 .../devicetree/bindings/display/msm/gpu.txt        | 28 +++++++
 arch/arm64/boot/dts/qcom/sc7180.dtsi               |  9 +++
 arch/arm64/boot/dts/qcom/sdm845.dtsi               |  9 +++
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c              | 85 +++++++++++++---------
 drivers/gpu/drm/msm/adreno/a6xx_gpu.h              |  2 +-
 drivers/gpu/drm/msm/adreno/adreno_gpu.c            |  8 --
 drivers/gpu/drm/msm/msm_gpu.c                      |  3 +-
 drivers/gpu/drm/msm/msm_gpu.h                      |  5 +-
 8 files changed, 100 insertions(+), 49 deletions(-)

--
2.7.4