From patchwork Tue May 31 10:51:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 577472 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8C51BC4332F for ; Tue, 31 May 2022 10:52:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343586AbiEaKwD (ORCPT ); Tue, 31 May 2022 06:52:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55302 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343576AbiEaKwC (ORCPT ); Tue, 31 May 2022 06:52:02 -0400 Received: from mail-ed1-x531.google.com (mail-ed1-x531.google.com [IPv6:2a00:1450:4864:20::531]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 688D153A77 for ; Tue, 31 May 2022 03:51:59 -0700 (PDT) Received: by mail-ed1-x531.google.com with SMTP id t5so16974300edc.2 for ; Tue, 31 May 2022 03:51:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=p7mIRFKlf7mUQrcHty6Iw1fiOYErDnQJ/9BxNwewsYs=; b=TiHu58MJlYhDvueuzEoHjnSpR3Ya+RJjug8dDTTt9WjVthO56N67D8UITUHAQInfyf x5nP4VMVucwgsYbu7uoh9+CTyGV3uuTHUUuFKKE/dmrf9iWu1qBG2r3hliuSuqRSdQmG YD2OXZ0pvFK3DODLBfIVTW1xBKHdOuOrcsrHBZWdi0gK4eGOHTzQnlWxwGFdOzTrbQ0g Sj80Bl4LQgiiIr/TGn5oBSQK+ak7bcQnGqqJMWWFUWHdAvtPUs2yG2KZTcUzw893ouol C5UVNlrPYxSoqPmaJ75K0VzyIJ8KwnG/D8kEj8hPrdB3G2HWdCqbDt0iYVBm0tO+ElRA +31g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=p7mIRFKlf7mUQrcHty6Iw1fiOYErDnQJ/9BxNwewsYs=; b=ZsVfzhYudXoEvNGRcNt71uNII6AWt9OuMzoxFqaywci1mRc/w3Qn4xFB/upvPrBxhf Bh19LGiArIFJC6U8TGmcZ+CPeF4vof7M7L0cLT/YnWyAsDvA1+rHvPkL1IId/wSP/wkk c0PS/HYzEfyRJl7Bbjp1VLlGSZcxpoCbF7/+ZGzP2nt+dSw2HIc7432hQ80l8TB3+B0S FIGqj8NDgWDJUM4PNPk1z/g1GStS+9SxQosOC72a/cSKXStzfc0y4xBKTbNcsbBg9c6E Du2wzXer7+8ouNkZT3nJe6bwXz5KQ4sDQCflu38Pf2Df2edzlPpjvtqBtBdRmH/3Sw09 uUmg== X-Gm-Message-State: AOAM532UlJB65BIDj4RRt8RD9PkRfvaQVbErbQuk04MmP5ABGWHDF6kC 37FLQTYG+5xi+QN6f6K0AnmItIG95qUi5Vec X-Google-Smtp-Source: ABdhPJwbV5+sW0Qx8vGQ9DlloXkTdOIz0AFgs5SvDYPE7n9AHH/lMowZnogwo+2y/mLUoHVo2QoiZQ== X-Received: by 2002:a05:6402:4c1:b0:42b:e03f:d940 with SMTP id n1-20020a05640204c100b0042be03fd940mr25357406edw.235.1653994318019; Tue, 31 May 2022 03:51:58 -0700 (PDT) Received: from localhost.localdomain (xdsl-188-155-176-92.adslplus.ch. [188.155.176.92]) by smtp.gmail.com with ESMTPSA id q3-20020a50aa83000000b0042dc513ced8sm5117441edc.30.2022.05.31.03.51.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 May 2022 03:51:57 -0700 (PDT) From: Krzysztof Kozlowski To: Krzysztof Kozlowski , Andy Gross , Bjorn Andersson , Georgi Djakov , Rob Herring , Catalin Marinas , Will Deacon , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Rob Herring Subject: [PATCH v3 1/4] dt-bindings: interconnect: qcom, sdm845-cpu-bwmon: add BWMON device Date: Tue, 31 May 2022 12:51:34 +0200 Message-Id: <20220531105137.110050-2-krzysztof.kozlowski@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220531105137.110050-1-krzysztof.kozlowski@linaro.org> References: <20220531105137.110050-1-krzysztof.kozlowski@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add bindings for the Qualcomm Bandwidth Monitor device providing performance data on interconnects. The bindings describe only BWMON version 4, e.g. the instance on SDM845 between CPU and Last Level Cache Controller. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Rob Herring Acked-by: Georgi Djakov --- .../interconnect/qcom,sdm845-cpu-bwmon.yaml | 97 +++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,sdm845-cpu-bwmon.yaml diff --git a/Documentation/devicetree/bindings/interconnect/qcom,sdm845-cpu-bwmon.yaml b/Documentation/devicetree/bindings/interconnect/qcom,sdm845-cpu-bwmon.yaml new file mode 100644 index 000000000000..8c82e06ee432 --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/qcom,sdm845-cpu-bwmon.yaml @@ -0,0 +1,97 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/qcom,sdm845-cpu-bwmon.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Interconnect Bandwidth Monitor + +maintainers: + - Krzysztof Kozlowski + +description: + Bandwidth Monitor measures current throughput on buses between various NoC + fabrics and provides information when it crosses configured thresholds. + +properties: + compatible: + enum: + - qcom,sdm845-cpu-bwmon # BWMON v4 + + interconnects: + maxItems: 2 + + interconnect-names: + items: + - const: ddr + - const: l3c + + interrupts: + maxItems: 1 + + operating-points-v2: true + opp-table: true + + reg: + # Currently described BWMON v4 and v5 use one register address space. + # BWMON v2 uses two register spaces - not yet described. + maxItems: 1 + +required: + - compatible + - interconnects + - interconnect-names + - interrupts + - operating-points-v2 + - opp-table + - reg + +additionalProperties: false + +examples: + - | + #include + #include + #include + + pmu@1436400 { + compatible = "qcom,sdm845-cpu-bwmon"; + reg = <0x01436400 0x600>; + + interrupts = ; + + interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_EBI1 3>, + <&osm_l3 MASTER_OSM_L3_APPS &osm_l3 SLAVE_OSM_L3>; + interconnect-names = "ddr", "l3c"; + + operating-points-v2 = <&cpu_bwmon_opp_table>; + + cpu_bwmon_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-0 { + opp-peak-kBps = <800000 4800000>; + }; + opp-1 { + opp-peak-kBps = <1804000 9216000>; + }; + opp-2 { + opp-peak-kBps = <2188000 11980800>; + }; + opp-3 { + opp-peak-kBps = <3072000 15052800>; + }; + opp-4 { + opp-peak-kBps = <4068000 19353600>; + }; + opp-5 { + opp-peak-kBps = <5412000 20889600>; + }; + opp-6 { + opp-peak-kBps = <6220000 22425600>; + }; + opp-7 { + opp-peak-kBps = <7216000 25497600>; + }; + }; + };