From patchwork Sun Dec 10 07:26:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mao Jinlong X-Patchwork-Id: 752396 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="WdT+Jsv1" Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0073DFC; Sat, 9 Dec 2023 23:26:52 -0800 (PST) Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 3BA7N7Wb019858; Sun, 10 Dec 2023 07:26:47 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= qcppdkim1; bh=/z4BxeFGp7oYbJB1dgXCRImmUz9pRo/IBvMZtOGegYU=; b=Wd T+Jsv1cxM2xXHDg4W3HbaVCXJ5qUPXKMfkU0CIqCFhhvzplnjdfHOq0XxNBbdJJQ brZqMt1KMW7+99BUnrJ46WX2EEmOuKmbVD1vXdoyqdP7dMPHXAEDh4hlcEfQBCGn Nw+LW4h0w0DamRVrjyEa7vHQZSZI2ph7QOcDhuiTDC0AEapu77VEr86WuWYYs23Z YriMW6uJGhnHt4ne1jtP4DKZjJuR4UkY7shQ/D6moW8NkCu6JBdAh1UOresppA2d iaqK9O0hY7H+NXuwlqMkKLXeJQuMvkZqFiAX4xDwinyhnJHO4nTZ8Duw6DA5jtxM qkLW5jMtpYwRwyt5ibkw== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3uvney13k0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 10 Dec 2023 07:26:46 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 3BA7Qjn0002357 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 10 Dec 2023 07:26:45 GMT Received: from hu-jinlmao-lv.qualcomm.com (10.49.16.6) 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 15.2.1118.40; Sat, 9 Dec 2023 23:26:44 -0800 From: Mao Jinlong To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: Mao Jinlong , , , , Tingwei Zhang , Yuanfang Zhang , "Tao Zhang" , Krzysztof Kozlowski Subject: [PATCH v4 1/4] dt-bindings: arm: Add remote etm dt-binding Date: Sat, 9 Dec 2023 23:26:28 -0800 Message-ID: <20231210072633.4243-2-quic_jinlmao@quicinc.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231210072633.4243-1-quic_jinlmao@quicinc.com> References: <20231210072633.4243-1-quic_jinlmao@quicinc.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: s12YTqd626WDzbIqJs2T7wI9U5pvYY-w X-Proofpoint-ORIG-GUID: s12YTqd626WDzbIqJs2T7wI9U5pvYY-w X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_01,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 bulkscore=0 impostorscore=0 mlxlogscore=721 mlxscore=0 phishscore=0 spamscore=0 malwarescore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2312100063 Remote ETM(Embedded Trace Macrocell) is to capture information of the executed processor instructions of remote processors like modem. Add new coresight-remote-etm.yaml file describing the bindings required to define coresight remote etm in the device trees. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Mao Jinlong --- .../arm/qcom,coresight-remote-etm.yaml | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml new file mode 100644 index 000000000000..4fd5752978cd --- /dev/null +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/qcom,coresight-remote-etm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Coresight Remote ETM(Embedded Trace Macrocell) + +maintainers: + - Jinlong Mao + - Tao Zhang + +description: + Support for ETM trace collection on remote processor using coresight + framework. Enabling this will allow turning on ETM tracing on remote + processor like modem processor via sysfs and collecting the trace + via coresight TMC sinks. + +properties: + compatible: + const: qcom,coresight-remote-etm + + out-ports: + $ref: /schemas/graph.yaml#/properties/ports + additionalProperties: false + + properties: + port: + description: Output connection to the CoreSight Trace bus. + $ref: /schemas/graph.yaml#/properties/port + +required: + - compatible + - out-ports + +additionalProperties: false + +examples: + - | + etm { + compatible = "qcom,coresight-remote-etm"; + + out-ports { + port { + modem_etm0_out_funnel_modem: endpoint { + remote-endpoint = <&funnel_modem_in_modem_etm0>; + }; + }; + }; + }; +...