1a7ee53e1SKrzysztof Kozlowski# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2a7ee53e1SKrzysztof Kozlowski%YAML 1.2 3a7ee53e1SKrzysztof Kozlowski--- 4a7ee53e1SKrzysztof Kozlowski$id: http://devicetree.org/schemas/interconnect/qcom,msm8998-bwmon.yaml# 5a7ee53e1SKrzysztof Kozlowski$schema: http://devicetree.org/meta-schemas/core.yaml# 6a7ee53e1SKrzysztof Kozlowski 7a7ee53e1SKrzysztof Kozlowskititle: Qualcomm Interconnect Bandwidth Monitor 8a7ee53e1SKrzysztof Kozlowski 9a7ee53e1SKrzysztof Kozlowskimaintainers: 10a7ee53e1SKrzysztof Kozlowski - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> 11a7ee53e1SKrzysztof Kozlowski 12a7ee53e1SKrzysztof Kozlowskidescription: | 13a7ee53e1SKrzysztof Kozlowski Bandwidth Monitor measures current throughput on buses between various NoC 14a7ee53e1SKrzysztof Kozlowski fabrics and provides information when it crosses configured thresholds. 15a7ee53e1SKrzysztof Kozlowski 16a7ee53e1SKrzysztof Kozlowski Certain SoCs might have more than one Bandwidth Monitors, for example on SDM845:: 17a7ee53e1SKrzysztof Kozlowski - Measuring the bandwidth between CPUs and Last Level Cache Controller - 18a7ee53e1SKrzysztof Kozlowski called just BWMON, 19a7ee53e1SKrzysztof Kozlowski - Measuring the bandwidth between Last Level Cache Controller and memory 20a7ee53e1SKrzysztof Kozlowski (DDR) - called LLCC BWMON. 21a7ee53e1SKrzysztof Kozlowski 22a7ee53e1SKrzysztof Kozlowskiproperties: 23a7ee53e1SKrzysztof Kozlowski compatible: 24a7ee53e1SKrzysztof Kozlowski oneOf: 25b7590f38SKonrad Dybcio - const: qcom,msm8998-bwmon # BWMON v4 26a7ee53e1SKrzysztof Kozlowski - items: 27a7ee53e1SKrzysztof Kozlowski - enum: 28770b8d2dSKonrad Dybcio - qcom,sc7180-cpu-bwmon 291498a5a7SKrzysztof Kozlowski - qcom,sc7280-cpu-bwmon 302d710b00SBjorn Andersson - qcom,sc8280xp-cpu-bwmon 31b7590f38SKonrad Dybcio - qcom,sdm845-cpu-bwmon 32*611c148bSKonrad Dybcio - qcom,sm6350-llcc-bwmon 333740a791SKonrad Dybcio - qcom,sm8250-cpu-bwmon 3416ceb986SNeil Armstrong - qcom,sm8550-cpu-bwmon 35b7590f38SKonrad Dybcio - const: qcom,sdm845-bwmon # BWMON v4, unified register space 362d710b00SBjorn Andersson - items: 372d710b00SBjorn Andersson - enum: 38770b8d2dSKonrad Dybcio - qcom,sc7180-llcc-bwmon 392d710b00SBjorn Andersson - qcom,sc8280xp-llcc-bwmon 40*611c148bSKonrad Dybcio - qcom,sm6350-cpu-bwmon 413740a791SKonrad Dybcio - qcom,sm8250-llcc-bwmon 4216ceb986SNeil Armstrong - qcom,sm8550-llcc-bwmon 432d710b00SBjorn Andersson - const: qcom,sc7280-llcc-bwmon 44b7c84ae7SRajendra Nayak - const: qcom,sc7280-llcc-bwmon # BWMON v5 453098fcb1SKrzysztof Kozlowski - const: qcom,sdm845-llcc-bwmon # BWMON v5 46a7ee53e1SKrzysztof Kozlowski 47a7ee53e1SKrzysztof Kozlowski interconnects: 48a7ee53e1SKrzysztof Kozlowski maxItems: 1 49a7ee53e1SKrzysztof Kozlowski 50a7ee53e1SKrzysztof Kozlowski interrupts: 51a7ee53e1SKrzysztof Kozlowski maxItems: 1 52a7ee53e1SKrzysztof Kozlowski 53a7ee53e1SKrzysztof Kozlowski operating-points-v2: true 54c8973737SKrzysztof Kozlowski opp-table: 55c8973737SKrzysztof Kozlowski type: object 56a7ee53e1SKrzysztof Kozlowski 57a7ee53e1SKrzysztof Kozlowski reg: 58b7590f38SKonrad Dybcio # BWMON v5 uses one register address space, v1-v4 use one or two. 59b7590f38SKonrad Dybcio minItems: 1 60b7590f38SKonrad Dybcio maxItems: 2 61b7590f38SKonrad Dybcio 62b7590f38SKonrad Dybcio reg-names: 63b7590f38SKonrad Dybcio minItems: 1 64b7590f38SKonrad Dybcio maxItems: 2 65a7ee53e1SKrzysztof Kozlowski 66a7ee53e1SKrzysztof Kozlowskirequired: 67a7ee53e1SKrzysztof Kozlowski - compatible 68a7ee53e1SKrzysztof Kozlowski - interconnects 69a7ee53e1SKrzysztof Kozlowski - interrupts 70a7ee53e1SKrzysztof Kozlowski - operating-points-v2 71a7ee53e1SKrzysztof Kozlowski - opp-table 72a7ee53e1SKrzysztof Kozlowski - reg 73a7ee53e1SKrzysztof Kozlowski 74a7ee53e1SKrzysztof KozlowskiadditionalProperties: false 75a7ee53e1SKrzysztof Kozlowski 76b7590f38SKonrad DybcioallOf: 77b7590f38SKonrad Dybcio - if: 78b7590f38SKonrad Dybcio properties: 79b7590f38SKonrad Dybcio compatible: 80b7590f38SKonrad Dybcio const: qcom,msm8998-bwmon 81b7590f38SKonrad Dybcio then: 82b7590f38SKonrad Dybcio properties: 83b7590f38SKonrad Dybcio reg: 84b7590f38SKonrad Dybcio minItems: 2 85b7590f38SKonrad Dybcio 86b7590f38SKonrad Dybcio reg-names: 87b7590f38SKonrad Dybcio items: 88b7590f38SKonrad Dybcio - const: monitor 89b7590f38SKonrad Dybcio - const: global 90b7590f38SKonrad Dybcio 91b7590f38SKonrad Dybcio else: 92b7590f38SKonrad Dybcio properties: 93b7590f38SKonrad Dybcio reg: 94b7590f38SKonrad Dybcio maxItems: 1 95b7590f38SKonrad Dybcio 96b7590f38SKonrad Dybcio reg-names: 97b7590f38SKonrad Dybcio maxItems: 1 98b7590f38SKonrad Dybcio 99a7ee53e1SKrzysztof Kozlowskiexamples: 100a7ee53e1SKrzysztof Kozlowski - | 101a7ee53e1SKrzysztof Kozlowski #include <dt-bindings/interconnect/qcom,sdm845.h> 102a7ee53e1SKrzysztof Kozlowski #include <dt-bindings/interrupt-controller/arm-gic.h> 103a7ee53e1SKrzysztof Kozlowski 104a7ee53e1SKrzysztof Kozlowski pmu@1436400 { 105b7590f38SKonrad Dybcio compatible = "qcom,sdm845-cpu-bwmon", "qcom,sdm845-bwmon"; 106a7ee53e1SKrzysztof Kozlowski reg = <0x01436400 0x600>; 107a7ee53e1SKrzysztof Kozlowski interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>; 108a7ee53e1SKrzysztof Kozlowski interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_LLCC 3>; 109a7ee53e1SKrzysztof Kozlowski 110a7ee53e1SKrzysztof Kozlowski operating-points-v2 = <&cpu_bwmon_opp_table>; 111a7ee53e1SKrzysztof Kozlowski 112a7ee53e1SKrzysztof Kozlowski cpu_bwmon_opp_table: opp-table { 113a7ee53e1SKrzysztof Kozlowski compatible = "operating-points-v2"; 114a7ee53e1SKrzysztof Kozlowski opp-0 { 115a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <4800000>; 116a7ee53e1SKrzysztof Kozlowski }; 117a7ee53e1SKrzysztof Kozlowski opp-1 { 118a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <9216000>; 119a7ee53e1SKrzysztof Kozlowski }; 120a7ee53e1SKrzysztof Kozlowski opp-2 { 121a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <15052800>; 122a7ee53e1SKrzysztof Kozlowski }; 123a7ee53e1SKrzysztof Kozlowski opp-3 { 124a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <20889600>; 125a7ee53e1SKrzysztof Kozlowski }; 126a7ee53e1SKrzysztof Kozlowski opp-4 { 127a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <25497600>; 128a7ee53e1SKrzysztof Kozlowski }; 129a7ee53e1SKrzysztof Kozlowski }; 130a7ee53e1SKrzysztof Kozlowski }; 131