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[81.204.249.205]) by smtp.gmail.com with ESMTPSA id i10sm7542783edl.15.2021.10.16.13.45.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 16 Oct 2021 13:45:05 -0700 (PDT) Subject: Re: [PATCH 1/2] arm64: dts: rk3328: add gpu opp table To: Trevor Woerner , linux-kernel@vger.kernel.org Cc: Rob Herring , Heiko Stuebner , Chen-Yu Tsai , David Wu , Ezequiel Garcia , Cameron Nemo , Robin Murphy , Elaine Zhang , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , "moderated list:ARM/Rockchip SoC support" , "open list:ARM/Rockchip SoC support" References: <20211016154548.29555-1-twoerner@gmail.com> From: Johan Jonker Message-ID: <67c7c3c6-b946-a6bc-24fd-85f56bcec7f3@gmail.com> Date: Sat, 16 Oct 2021 22:45:04 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20211016154548.29555-1-twoerner@gmail.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211016_134508_253123_E29150C9 X-CRM114-Status: GOOD ( 19.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/16/21 5:45 PM, Trevor Woerner wrote: > Add an operating-points table and cooling entry to the GPU on the > RK3328 SoC to improve its performance. According to its datasheet[1] > the maximum frequency of the Mali-450 MP2 GPU found on the RK3328 SoC > is 500MHz. > > On my rock64 device, under x11, glmark2-es2 performance increased from > around 60 to just over 100. Same device running glmark2-es2 under > wayland/weston improved from just over 100 to just over 200. > > [1] https://rockchip.fr/RK3328%20datasheet%20V1.2.pdf > > Signed-off-by: Trevor Woerner > --- > arch/arm64/boot/dts/rockchip/rk3328.dtsi | 26 +++++++++++++++++++++++- > 1 file changed, 25 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi > index 8c821acb21ff..5e1dcf71e414 100644 > --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi > +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi > @@ -532,7 +532,8 @@ map0 { > cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > - <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; > + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; > contribution = <4096>; > }; > }; > @@ -617,6 +618,29 @@ gpu: gpu@ff300000 { > clocks = <&cru ACLK_GPU>, <&cru ACLK_GPU>; > clock-names = "bus", "core"; > resets = <&cru SRST_GPU_A>; > + operating-points-v2 = <&gpu_opp_table>; > + #cooling-cells = <2>; > + }; > + > + gpu_opp_table: gpu-opp-table { After the conversion to YAML of the Operating Performance Points(OPP) binding the operating-points-v2 property expects the nodename to have the '^opp-table(-[a-z0-9]+)?$' format. make ARCH=arm64 dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/opp/opp-v2.yaml > + compatible = "operating-points-v2"; > + > + opp-200000000 { > + opp-hz = /bits/ 64 <200000000>; > + opp-microvolt = <1100000>; > + }; > + opp-300000000 { > + opp-hz = /bits/ 64 <300000000>; > + opp-microvolt = <1100000>; > + }; > + opp-400000000 { > + opp-hz = /bits/ 64 <400000000>; > + opp-microvolt = <1100000>; > + }; > + opp-500000000 { > + opp-hz = /bits/ 64 <500000000>; > + opp-microvolt = <1100000>; > + }; > }; opp-microvolt has the same value for every node vs. table below? See also previous discussion: https://lore.kernel.org/linux-rockchip/3c95c29b-6c07-5945-ac22-d683997e1ca0@arm.com/ Is that now fixed/checked? Copy from manufacturer tree: gpu_opp_table: gpu-opp-table { compatible = "operating-points-v2"; rockchip,leakage-voltage-sel = < 1 10 0 11 254 1 >; nvmem-cells = <&logic_leakage>; nvmem-cell-names = "gpu_leakage"; opp-200000000 { opp-hz = /bits/ 64 <200000000>; opp-microvolt = <950000>; opp-microvolt-L0 = <950000>; opp-microvolt-L1 = <950000>; }; opp-300000000 { opp-hz = /bits/ 64 <300000000>; opp-microvolt = <975000>; opp-microvolt-L0 = <975000>; opp-microvolt-L1 = <950000>; }; opp-400000000 { opp-hz = /bits/ 64 <400000000>; opp-microvolt = <1050000>; opp-microvolt-L0 = <1050000>; opp-microvolt-L1 = <1025000>; }; opp-500000000 { opp-hz = /bits/ 64 <500000000>; opp-microvolt = <1150000>; opp-microvolt-L0 = <1150000>; opp-microvolt-L1 = <1100000>; }; }; > > h265e_mmu: iommu@ff330200 { > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel