From patchwork Fri Jun 10 03:21:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mao Jinlong X-Patchwork-Id: 12876339 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 54EF3C433EF for ; Fri, 10 Jun 2022 03:23:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=S4cvhlfZaRw0e1bClO2OOfkbhnwOM8no2zxdqo+l8BA=; b=g8/bKVHimQtFoU YFoUhtQ7GKh3/jW87FU2EeTBbsBljRJmyyks6l8/76ta7y/RL/G3i6W2fSyDppvDx8epxMCuVLLRS Dmvn+85ml/qWzT/IjUpPxXmu00MzlI82w4N4H07GMUYqhNR0z7u2gmL/7DArRqVLwH+sXKuaAx0Zt PtA9AsnHjlon33oDrRfhDyal9JZMUxj+iOmuKPUp9TeoOJJSHrCw2bpULr6wucTlNozID+FDd5ttI /jH6mNVxKQ2iJ/CFqkm0142Zca8VnHSYi5IBmhBY31wD8VWAFplWdM2CNe1S2MXen+8NCGLz7Z4kT ZVx5zNmz83ocFUPkH8Nw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nzVDx-005MQO-9k; Fri, 10 Jun 2022 03:22:13 +0000 Received: from alexa-out.qualcomm.com ([129.46.98.28]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nzVDt-005MOg-J1 for linux-arm-kernel@lists.infradead.org; Fri, 10 Jun 2022 03:22:11 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1654831329; x=1686367329; h=from:to:cc:subject:date:message-id:mime-version; bh=lITRRKH5uk11xKf3PDWKyoKG/IieOKU4/z/Uuod5MfQ=; b=b3SbKU1vfVEUkScOWGa4Fb9WLRi8I5A9MGmWrkxdNtre9G/ZEKwq59Xa xsnfZ47y4o+u5BnXu/ej1rCmrxNONoZNznbrs9l19eTGFiLFf/HHS8nc9 2XBoHjl22b+OmlntjgRfxFH+WtLYjMYa8wTZ7gKyeVXt0yIAmtLtEI5P5 w=; Received: from ironmsg08-lv.qualcomm.com ([10.47.202.152]) by alexa-out.qualcomm.com with ESMTP; 09 Jun 2022 20:22:05 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg08-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2022 20:22:04 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Thu, 9 Jun 2022 20:22:04 -0700 Received: from jinlmao-gv.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Thu, 9 Jun 2022 20:21:59 -0700 From: Mao Jinlong To: Mathieu Poirier , Suzuki K Poulose , Alexander Shishkin , Konrad Dybcio , Mike Leach CC: Mao Jinlong , Leo Yan , Greg Kroah-Hartman , , , , Tingwei Zhang , Yuanfang Zhang , Tao Zhang , Trilok Soni , Hao Zhang , , Bjorn Andersson Subject: [PATCH v9 00/10] Coresight: Add support for TPDM and TPDA Date: Fri, 10 Jun 2022 11:21:34 +0800 Message-ID: <20220610032144.5173-1-quic_jinlmao@quicinc.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220609_202209_713765_78D75AAA X-CRM114-Status: GOOD ( 23.00 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series adds support for the trace performance monitoring and diagnostics hardware (TPDM and TPDA). It is composed of two major elements. a) Changes for original coresight framework to support for TPDM and TPDA. b) Add driver code for TPDM and TPDA. Introduction of changes for original coresight framework Support TPDM as new coresight source. Since only STM and ETM are supported as coresight source originally. TPDM is a newly added coresight source. We need to change the original way of saving coresight path to support more types source for coresight driver. The following patch is to add support more coresight sources. coresight: core: Use IDR for non-cpu bound sources' paths. Introduction of TPDM and TPDA TPDM - The trace performance monitoring and diagnostics monitor or TPDM in short serves as data collection component for various dataset types specified in the QPMDA(Qualcomm performance monitoring and diagnostics architecture) spec. The primary use case of the TPDM is to collect data from different data sources and send it to a TPDA for packetization, timestamping and funneling. Coresight: Add coresight TPDM source driver dt-bindings: arm: Adds CoreSight TPDM hardware definitions coresight-tpdm: Add DSB dataset support coresight-tpdm: Add integration test support docs: sysfs: coresight: Add sysfs ABI documentation for TPDM TPDA - The trace performance monitoring and diagnostics aggregator or TPDA in short serves as an arbitration and packetization engine for the performance monitoring and diagnostics network as specified in the QPMDA (Qualcomm performance monitoring and diagnostics architecture) specification. The primary use case of the TPDA is to provide packetization, funneling and timestamping of Monitor data as specified in the QPMDA specification. The following patch is to add driver for TPDA. Coresight: Add TPDA link driver dt-bindings: arm: Adds CoreSight TPDA hardware definitions The last patch of this series is a device tree modification, which add the TPDM and TPDA configuration to device tree for validating. ARM: dts: msm: Add coresight components for SM8250 ARM: dts: msm: Add tpdm mm/prng for sm8250 Once this series patches are applied properly, the tpdm and tpda nodes should be observed at the coresight path /sys/bus/coresight/devices e.g. /sys/bus/coresight/devices # ls -l | grep tpd tpda0 -> ../../../devices/platform/soc@0/6004000.tpda/tpda0 tpdm0 -> ../../../devices/platform/soc@0/6c08000.mm.tpdm/tpdm0 We can use the commands are similar to the below to validate TPDMs. Enable coresight sink first. echo 1 > /sys/bus/coresight/devices/tmc_etf0/enable_sink echo 1 > /sys/bus/coresight/devices/tpdm0/enable_source echo 1 > /sys/bus/coresight/devices/tpdm0/integration_test echo 2 > /sys/bus/coresight/devices/tpdm0/integration_test The test data will be collected in the coresight sink which is enabled. If rwp register of the sink is keeping updating when do integration_test (by cat tmc_etf0/mgmt/rwp), it means there is data generated from TPDM to sink. There must be a tpda between tpdm and the sink. When there are some other trace event hw components in the same HW block with tpdm, tpdm and these hw components will connect to the coresight funnel. When there is only tpdm trace hw in the HW block, tpdm will connect to tpda directly. +---------------+ +-------------+ | tpdm@6c08000 | |tpdm@684C000 | +-------|-------+ +------|------+ | | +-------|-------+ | | funnel@6c0b000| | +-------|-------+ | | | +-------|-------+ | |funnel@6c2d000 | | +-------|-------+ | | | | +---------------+ | +----- tpda@6004000 -----------+ +-------|-------+ | +-------|-------+ |funnel@6005000 | +---------------+ This patch series depends on patch series "coresight: Add new API to allocate trace source ID values". https://patchwork.kernel.org/project/linux-arm-kernel/cover/20220308205000.27646-1-mike.leach@linaro.org/ Changes from V8: 1. Rename yaml file for TPDM/TPDA and fix the error for the yaml files. -- Rob Herring Mao Jinlong (10): coresight: core: Use IDR for non-cpu bound sources' paths. Coresight: Add coresight TPDM source driver dt-bindings: arm: Adds CoreSight TPDM hardware definitions coresight-tpdm: Add DSB dataset support coresight-tpdm: Add integration test support docs: sysfs: coresight: Add sysfs ABI documentation for TPDM Coresight: Add TPDA link driver dt-bindings: arm: Adds CoreSight TPDA hardware definitions arm64: dts: qcom: sm8250: Add coresight components arm64: dts: qcom: sm8250: Add tpdm mm/prng .../testing/sysfs-bus-coresight-devices-tpdm | 13 + .../bindings/arm/qcom,coresight-tpda.yaml | 110 +++ .../bindings/arm/qcom,coresight-tpdm.yaml | 92 +++ MAINTAINERS | 2 + arch/arm64/boot/dts/qcom/sm8250.dtsi | 671 ++++++++++++++++++ drivers/hwtracing/coresight/Kconfig | 23 + drivers/hwtracing/coresight/Makefile | 2 + drivers/hwtracing/coresight/coresight-core.c | 42 +- drivers/hwtracing/coresight/coresight-tpda.c | 206 ++++++ drivers/hwtracing/coresight/coresight-tpda.h | 35 + drivers/hwtracing/coresight/coresight-tpdm.c | 259 +++++++ drivers/hwtracing/coresight/coresight-tpdm.h | 62 ++ include/linux/coresight.h | 1 + 13 files changed, 1506 insertions(+), 12 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml create mode 100644 drivers/hwtracing/coresight/coresight-tpda.c create mode 100644 drivers/hwtracing/coresight/coresight-tpda.h create mode 100644 drivers/hwtracing/coresight/coresight-tpdm.c create mode 100644 drivers/hwtracing/coresight/coresight-tpdm.h