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Fri, 11 Oct 2024 06:47:45 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 15.2.1544.9; Thu, 10 Oct 2024 23:47:44 -0700 From: Mao Jinlong To: Suzuki K Poulose , Mike Leach , James Clark , "Alexander Shishkin" CC: Mao Jinlong , , , , Subject: [PATCH v1 RESEND 0/3] Add support to configure TPDM MCMB subunit Date: Thu, 10 Oct 2024 23:47:27 -0700 Message-ID: <20241011064732.8480-1-quic_jinlmao@quicinc.com> X-Mailer: git-send-email 2.46.0 MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) 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: 1STqIZHG0vEMKGpLLuglP11PTuA3cbxj X-Proofpoint-ORIG-GUID: 1STqIZHG0vEMKGpLLuglP11PTuA3cbxj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 mlxlogscore=716 bulkscore=0 malwarescore=0 lowpriorityscore=0 impostorscore=0 adultscore=0 phishscore=0 priorityscore=1501 clxscore=1015 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410110043 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241010_234753_123182_A2A379FE X-CRM114-Status: GOOD ( 11.55 ) 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 Introduction of TPDM MCMB(Multi-lane Continuous Multi Bit) subunit MCMB (Multi-lane CMB) is a special form of CMB dataset type. MCMB subunit has the same number and usage of registers as CMB subunit. Just like the CMB subunit, the MCMB subunit must be configured prior to enablement. This series adds support for TPDM to configure the MCMB subunit. Once this series patches are applied properly, the new tpdm nodes for should be observed at the tpdm path /sys/bus/coresight/devices/tpdm* which supports MCMB subunit. All sysfs files of CMB subunit TPDM are included in MCMB subunit TPDM. On this basis, MCMB subunit TPDM will have new sysfs files to select and enable the lane. Mao Jinlong (1): coresight-tpdm: Add MCMB dataset support Tao Zhang (2): coresight-tpdm: Add support to select lane coresight-tpdm: Add support to enable the lane for MCMB TPDM .../testing/sysfs-bus-coresight-devices-tpdm | 15 +++ drivers/hwtracing/coresight/coresight-tpda.c | 5 +- drivers/hwtracing/coresight/coresight-tpdm.c | 121 +++++++++++++++++- drivers/hwtracing/coresight/coresight-tpdm.h | 32 ++++- 4 files changed, 164 insertions(+), 9 deletions(-)