From mboxrd@z Thu Jan 1 00:00:00 1970 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 83030CA0EE8 for ; Mon, 15 Sep 2025 02:13:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8U+/es2auF/UpL8wkEHJ/UTOBmDkqedpQR+r1cxVz0Q=; b=r/ShS0HXwIUzK2PcnKoxoZLX3v qW3+jJqhTLKJWP0hZh9m0NLBSQd2gaiLqADkOh0INdoLXiw+G+CFfS2bg/w679O6hboN/FW0RUyyg 2/vFCphZ/qpLHDDu0QLte6IPWTKW3WsTp9IwE++s4vdw4aFaOar5WllZvo865h/eaCU5BxDeMN8vZ SUn/IZgYm9kWCKduowb9PdAFQ7YDML3GmIkr4z+Qo1CVKlZEd5HFwXazNiM1mhC39wHevVz+gmB+Z eWVK86kn2+lqjF/YUEC2IYBzh/Zez41SzFA1scLgO3TNAVR9qxCTEjz7i4fsqZ1szzceB+xCrbUjM 9DRe2nYg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uxyiO-00000002XpE-1ipl; Mon, 15 Sep 2025 02:13:12 +0000 Received: from mx0a-0031df01.pphosted.com ([205.220.168.131]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uxyiM-00000002Xos-1i4i for linux-arm-kernel@lists.infradead.org; Mon, 15 Sep 2025 02:13:11 +0000 Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 58EMaXdO016601 for ; Mon, 15 Sep 2025 02:13:09 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= 8U+/es2auF/UpL8wkEHJ/UTOBmDkqedpQR+r1cxVz0Q=; b=c6NeE9NZym9u3/Y1 5GGelEyagUcFuSUPXxt0viCk06INZ5fs9W1IwIkbbpl7gEuI7Z0rQ4BROpupGSXj nRizF2zIY8vfBZOrUDrfoNHw2aXlHodU6m/UFN6hBpOMuY/NAuePKC74EUwEU5BF 9IbVmUln3q/jJ0jJ2czalrzp/kyJ2CPQLLHUQIDgNePGKlzZ5bVFCpUElcB7Re99 UD0G2BVJHQ1lXUed0yvgTRcWpt9nVl9HEBbHnv1QG3Mf7VVh2/ilrShdY/JFnfqq 2DewBZKI8Wq1XlGKrt4zkqwXYSHbJrZLlFVhQahNUaaLuJFGOJd4NAu4txbrLsqd itqLxg== Received: from mail-pg1-f199.google.com (mail-pg1-f199.google.com [209.85.215.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 494yjv383m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 15 Sep 2025 02:13:09 +0000 (GMT) Received: by mail-pg1-f199.google.com with SMTP id 41be03b00d2f7-b52047b3f1dso5189587a12.2 for ; Sun, 14 Sep 2025 19:13:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1757902388; x=1758507188; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=8U+/es2auF/UpL8wkEHJ/UTOBmDkqedpQR+r1cxVz0Q=; b=vElsPb9p8fzbDf5beVPrbSt47SZ7+pAxUJGT4UbHRQy4rGmkWNRqGhTWWheA1p/q6H nJFyO+RdBLNU+sAMfRbMF0UclfY5Rwu9r0EfY1u6VfnxsH4DaFDR+q5B0sR6KR6seCB6 NbasMnnt+CWJfjOgXwKtBltV4/qrop6vQcHNu2xFR+tx+ltcAVd3fUo1LxbbN+hguUrN w0ZKBVd8GJgNjPbp39arYTP/y+at/kC1FMaGpkEbRkVcYDxxy3cQ/9ChKWPcD7AL7jc5 V3fiO0XYQ2U81xNJyiM6Gaqe7I5RrwQ0uJxpNWKU3U8Gy7bG+IoaqvAbHSoYtHFLKNHD Xkcg== X-Forwarded-Encrypted: i=1; AJvYcCX7jG2fRRhfl9muGU6qR32C9rh2LdFZyxtVC98Kymyxgn64s5ILZzAipFkpTdeXutgTPFV6SUNZO3GYxcgtQMH+@lists.infradead.org X-Gm-Message-State: AOJu0YwspNwQ4y8YZCW25qZbvrhNHK8nzdK86zpEecaG4l7B54yWT/f3 rSr5L4Xgzs5fA+x/GRkE12Hl4i2jFnwoyo1u5wINXdMJK1RdAOGsN1LIyBiWhmg32FwoQMwo2tI 6YVrwa28y8jCX8cTh5KgtBLYx4KsrdmbUGQlDkFO/Er2APYWWuxYR10CgPJ6bM/ZSGvJEw2vOho 3FTA== X-Gm-Gg: ASbGncvT/gxNU9ZmDF8N2M5lnyBGDBsYgiLzoFet2Q/NAAVkxuMlEdz8Q6pyHVt3r6A O4y5PhR4UdBrexmadC+YC0K99PGoaczEvu5ttSMBPANOrFJIr3ZkDw8JkOH9gq/uK64oSJEnGXq /qNMPFZ9E/H6zBgZis6Hp8ehjAzpvp6VV7SJ/Yxi6t1azRDa/ll92utOl6dk/KEkNVWA+E6XHdf n9S6k9VDqhchFoQd5rRVQjtmfFE9y8rI65acibqiD+6dq4GtItcy5IGbwKWTDMUJ3eyarbi1X9l LAqCN+tlMXVE92zhFR0rsAjThIrD3yEp9+FPMzpwqeyijrdA83KOpeEpxai0lEWBNTHOSD+nD8A eW0snt2PE2shA9tlWG/T4IzE9yMDpsQ== X-Received: by 2002:a05:6a20:c40a:b0:262:23dd:2e8c with SMTP id adf61e73a8af0-26223dd314fmr5121181637.44.1757902388560; Sun, 14 Sep 2025 19:13:08 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFNdmgeYdPGgEBBnW9LZnrDbOV/8e3BmXeugleNAIQXSUHtKSZ13d9gG/jmrPwhW3MoO6DJ+g== X-Received: by 2002:a05:6a20:c40a:b0:262:23dd:2e8c with SMTP id adf61e73a8af0-26223dd314fmr5121157637.44.1757902388124; Sun, 14 Sep 2025 19:13:08 -0700 (PDT) Received: from [10.133.33.184] (tpe-colo-wan-fw-bordernet.qualcomm.com. [103.229.16.4]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b54a3aa1a22sm10159814a12.52.2025.09.14.19.13.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 14 Sep 2025 19:13:07 -0700 (PDT) Message-ID: <77342c70-3b75-4ccb-ae3a-c0418511a33e@oss.qualcomm.com> Date: Mon, 15 Sep 2025 10:12:58 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 0/3] add sysfs nodes to configure TPDA's registers To: James Clark , Suzuki K Poulose Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Mike Leach , Alexander Shishkin , Tingwei Zhang References: <20250827105545.7140-1-jie.gan@oss.qualcomm.com> <49bf23dc-705e-45ab-a2e3-fbb798cd8e34@linaro.org> Content-Language: en-US From: Jie Gan In-Reply-To: <49bf23dc-705e-45ab-a2e3-fbb798cd8e34@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=HcoUTjE8 c=1 sm=1 tr=0 ts=68c77635 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=KKAkSRfTAAAA:8 a=iF4Rue9Sqs3gHakc6bMA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-ORIG-GUID: qQTkq5I_5CAJdsHEWak4IwoTd10Udy4m X-Proofpoint-GUID: qQTkq5I_5CAJdsHEWak4IwoTd10Udy4m X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTEzMDAxNyBTYWx0ZWRfX93Koo0UbIE6F 1Xo+H6/VrQ5wZEQOykXh0Eiwb6+CJsS+BBOBhCLePv8ucuw7XH5ifWEmIpW6RH869PeFMeUODgj CiV9A9SyWeujX/+iUDtnTB2/057i8SFLSFHeyIrkQ4lxx4issSZZLpMdIVFLyl+MdsLQgs7xZPa dJIrbZA8VDJH1TPUNyZBjKPzlj/97iWby+vloqfoFgXuWoU+97/FF1S7rSzm/Ztvpy0N1We8VGo ksO+gn7zkDSbHqomXfwvBefj+T2R5GRnULeOQ5l0WZ7ZvUBJYVkWVvQi374Gjes9MNPbpaKgUTQ ycCxrxGUiShhJbLcJO0RzzNNAtKTkzNkiVVGJLvQvj+guGkYcwzbvSIteDa3pUuceJUuxGyxZKy H1rzCMnK X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-15_01,2025-09-12_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 spamscore=0 malwarescore=0 suspectscore=0 bulkscore=0 phishscore=0 clxscore=1015 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509130017 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250914_191310_452940_9718B99E X-CRM114-Status: GOOD ( 16.39 ) 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 On 8/27/2025 7:59 PM, James Clark wrote: > > > On 27/08/2025 11:55 am, Jie Gan wrote: >> Patchset 1 introduces configuration of the cross-trigger registers with >> appropriate values to enable proper generation of cross-trigger packets. >> >> Patchset 2 introduces a logic to configure the TPDA_SYNCR register, >> which determines the frequency of ASYNC packet generation. These packets >> assist userspace tools in accurately identifying each valid packet. >> >> Patchset 3 introduces a sysfs node to initiate a flush request for the >> specific port, forcing the data to synchronize and be transmitted to the >> sink device. >> >> Changes in V3: >> 1. Optimizing codes according to James's comment. >> Link to V2 - https://lore.kernel.org/all/20250827042042.6786-1- >> jie.gan@oss.qualcomm.com/ >> >> Changes in V2: >> 1. Refactoring the code based on James's comment for optimization. >> Link to V1 - https://lore.kernel.org/all/20250826070150.5603-1- >> jie.gan@oss.qualcomm.com/ >> >> Tao Zhang (3): >>    coresight: tpda: add sysfs nodes for tpda cross-trigger configuration >>    coresight: tpda: add logic to configure TPDA_SYNCR register >>    coresight: tpda: add sysfs node to flush specific port >> >>   .../testing/sysfs-bus-coresight-devices-tpda  |  50 ++++ >>   drivers/hwtracing/coresight/coresight-tpda.c  | 278 ++++++++++++++++++ >>   drivers/hwtracing/coresight/coresight-tpda.h  |  33 ++- >>   3 files changed, 360 insertions(+), 1 deletion(-) >>   create mode 100644 Documentation/ABI/testing/sysfs-bus-coresight- >> devices-tpda >> > > Reviewed-by: James Clark > Gentle ping. Thanks, Jie