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-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20230331-topic-konahana_speedbin-v3-5-2dede22dd7f7@linaro.org>
Date:   Fri, 31 Mar 2023 03:14:53 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH v3 5/5] arm64: dts: qcom: sm8250: Add GPU speedbin support

SM8250 has (at least) four GPU speed bins. With the support added on the
driver side, wire up bin detection in the DTS to restrict lower-quality
SKUs from running at frequencies they were not validated at.

Tested-by: Marijn Suijten <marijn.suijten@...ainline.org> # On Sony Xperia 5 II (speed bin 0x7)
Reviewed-by: Marijn Suijten <marijn.suijten@...ainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 7b78761f2041..65e6fcff2d6c 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -962,6 +962,18 @@ ipcc: mailbox@...000 {
 			#mbox-cells = <2>;
 		};
 
+		qfprom: efuse@...000 {
+			compatible = "qcom,sm8250-qfprom", "qcom,qfprom";
+			reg = <0 0x00784000 0 0x8ff>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			gpu_speed_bin: gpu_speed_bin@19b {
+				reg = <0x19b 0x1>;
+				bits = <5 3>;
+			};
+		};
+
 		rng: rng@...000 {
 			compatible = "qcom,prng-ee";
 			reg = <0 0x00793000 0 0x1000>;
@@ -2559,49 +2571,58 @@ gpu: gpu@...0000 {
 
 			qcom,gmu = <&gmu>;
 
+			nvmem-cells = <&gpu_speed_bin>;
+			nvmem-cell-names = "speed_bin";
+
 			status = "disabled";
 
 			zap-shader {
 				memory-region = <&gpu_mem>;
 			};
 
-			/* note: downstream checks gpu binning for 670 Mhz */
 			gpu_opp_table: opp-table {
 				compatible = "operating-points-v2";
 
 				opp-670000000 {
 					opp-hz = /bits/ 64 <670000000>;
 					opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
+					opp-supported-hw = <0xa>;
 				};
 
 				opp-587000000 {
 					opp-hz = /bits/ 64 <587000000>;
 					opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
+					opp-supported-hw = <0xb>;
 				};
 
 				opp-525000000 {
 					opp-hz = /bits/ 64 <525000000>;
 					opp-level = <RPMH_REGULATOR_LEVEL_SVS_L2>;
+					opp-supported-hw = <0xf>;
 				};
 
 				opp-490000000 {
 					opp-hz = /bits/ 64 <490000000>;
 					opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
+					opp-supported-hw = <0xf>;
 				};
 
 				opp-441600000 {
 					opp-hz = /bits/ 64 <441600000>;
 					opp-level = <RPMH_REGULATOR_LEVEL_SVS_L0>;
+					opp-supported-hw = <0xf>;
 				};
 
 				opp-400000000 {
 					opp-hz = /bits/ 64 <400000000>;
 					opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
+					opp-supported-hw = <0xf>;
 				};
 
 				opp-305000000 {
 					opp-hz = /bits/ 64 <305000000>;
 					opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
+					opp-supported-hw = <0xf>;
 				};
 			};
 		};

-- 
2.40.0

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ