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[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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTEzMDAyMiBTYWx0ZWRfX7k9xckD1gCEm ozd5cIO6MftvA9QMjXoJucdbpmUEkZYDPydFLSVUvF7a6qRhU2otyYqEU9sbDgecxKMa1hzkM/P 3TnRNySLQahdUOOCGTHZ7L5KOad/EinVi0ddfmnq9i9fJt54UzElmoUgovc79lo27jUklA3gxS6 wQuAMI5vtNr45uLQRh4odL0JYUT0++xgwoPTrrdQx3lN/6nQhugprZtGZ3b6BBeiiNW2iXr2e56 NXFpFqYb6KhLOIeiC/yO2ssLZQ3NQMHJqlSi+iMsz/+mihKQnWR5oTbQD9FYPasc1KE7BYYJS3i ruV4G7veQxYdBQENfz6N3iqjNI6ssdpA2Ea22CKNs/3TL3aoN5rX1bxn0+vkdnG0c+n3p5+Wuty ibQ5MJwZ X-Proofpoint-ORIG-GUID: 38V37mpLA27HkXUEeCwsB7iqHgGwKF3J X-Authority-Analysis: v=2.4 cv=KfjSsRYD c=1 sm=1 tr=0 ts=68c77635 cx=c_pps a=mDZGXZTwRPZaeRUbqKGCBw==: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=zc0IvFSfCIW2DFIPzwfm:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-GUID: 38V37mpLA27HkXUEeCwsB7iqHgGwKF3J 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 spamscore=0 clxscore=1015 impostorscore=0 priorityscore=1501 suspectscore=0 adultscore=0 phishscore=0 bulkscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509130022 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