From: Sharat Masetty <smasetty@codeaurora.org>
To: freedreno@lists.freedesktop.org, devicetree@vger.kernel.org
Cc: saravanak@google.com, linux-arm-msm@vger.kernel.org,
Sharat Masetty <smasetty@codeaurora.org>,
linux-kernel@vger.kernel.org, mka@chromium.org,
sibis@codeaurora.org, viresh.kumar@linaro.org,
dri-devel@freedesktop.org
Subject: [PATCH v3 4/6] arm64: dts: qcom: SDM845: Enable GPU DDR bw scaling
Date: Sat, 6 Jun 2020 09:55:49 +0530 [thread overview]
Message-ID: <1591417551-38051-5-git-send-email-smasetty@codeaurora.org> (raw)
In-Reply-To: <1591417551-38051-1-git-send-email-smasetty@codeaurora.org>
This patch adds the interconnects property for the gpu node and the
opp-peak-kBps property to the opps of the gpu opp table. This should
help enable DDR bandwidth scaling dynamically and proportionally to the
GPU frequency.
Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
---
arch/arm64/boot/dts/qcom/sdm845.dtsi | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 11fc3f24..6ea6f54 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -3240,6 +3240,8 @@
qcom,gmu = <&gmu>;
+ interconnects = <&mem_noc MASTER_GFX3D &mem_noc SLAVE_EBI1>;
+
zap_shader: zap-shader {
memory-region = <&gpu_mem>;
};
@@ -3250,36 +3252,43 @@
opp-710000000 {
opp-hz = /bits/ 64 <710000000>;
opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
+ opp-peak-kBps = <7216000>;
};
opp-675000000 {
opp-hz = /bits/ 64 <675000000>;
opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
+ opp-peak-kBps = <7216000>;
};
opp-596000000 {
opp-hz = /bits/ 64 <596000000>;
opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
+ opp-peak-kBps = <6220000>;
};
opp-520000000 {
opp-hz = /bits/ 64 <520000000>;
opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
+ opp-peak-kBps = <6220000>;
};
opp-414000000 {
opp-hz = /bits/ 64 <414000000>;
opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
+ opp-peak-kBps = <4068000>;
};
opp-342000000 {
opp-hz = /bits/ 64 <342000000>;
opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
+ opp-peak-kBps = <2724000>;
};
opp-257000000 {
opp-hz = /bits/ 64 <257000000>;
opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
+ opp-peak-kBps = <1648000>;
};
};
};
--
2.7.4
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next prev parent reply other threads:[~2020-06-06 4:26 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-06 4:25 [PATCH v3 0/6] Add support for GPU DDR BW scaling Sharat Masetty
2020-06-06 4:25 ` [PATCH v3 1/6] dt-bindings: drm/msm/gpu: Document gpu opp table Sharat Masetty
2020-06-06 4:25 ` [PATCH v3 2/6] drm: msm: a6xx: send opp instead of a frequency Sharat Masetty
2020-06-18 17:52 ` Rob Clark
2020-06-24 16:57 ` Matthias Kaehlcke
2020-06-06 4:25 ` [PATCH v3 3/6] drm: msm: a6xx: use dev_pm_opp_set_bw to scale DDR Sharat Masetty
2020-06-06 4:25 ` Sharat Masetty [this message]
2020-06-06 4:25 ` [PATCH v3 5/6] arm64: dts: qcom: sc7180: Add interconnects property for GPU Sharat Masetty
2020-06-06 4:25 ` [PATCH v3 6/6] arm64: dts: qcom: sc7180: Add opp-peak-kBps to GPU opp Sharat Masetty
2020-06-15 6:23 ` [PATCH v3 0/6] Add support for GPU DDR BW scaling Viresh Kumar
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