1758d6386SMao Jinlong.. SPDX-License-Identifier: GPL-2.0 2758d6386SMao Jinlong 3ba0f3ae6SBagas Sanjaya========================================================== 4ba0f3ae6SBagas SanjayaTrace performance monitoring and diagnostics monitor(TPDM) 5ba0f3ae6SBagas Sanjaya========================================================== 6758d6386SMao Jinlong 7758d6386SMao Jinlong :Author: Jinlong Mao <quic_jinlmao@quicinc.com> 8758d6386SMao Jinlong :Date: January 2023 9758d6386SMao Jinlong 10758d6386SMao JinlongHardware Description 11758d6386SMao Jinlong-------------------- 12758d6386SMao JinlongTPDM - The trace performance monitoring and diagnostics monitor or TPDM in 13758d6386SMao Jinlongshort serves as data collection component for various dataset types. 14758d6386SMao JinlongThe primary use case of the TPDM is to collect data from different data 15758d6386SMao Jinlongsources and send it to a TPDA for packetization, timestamping and funneling. 16758d6386SMao Jinlong 17758d6386SMao JinlongSysfs files and directories 18758d6386SMao Jinlong--------------------------- 19758d6386SMao JinlongRoot: ``/sys/bus/coresight/devices/tpdm<N>`` 20758d6386SMao Jinlong 21758d6386SMao Jinlong---- 22758d6386SMao Jinlong 23758d6386SMao Jinlong:File: ``enable_source`` (RW) 24758d6386SMao Jinlong:Notes: 25758d6386SMao Jinlong - > 0 : enable the datasets of TPDM. 26758d6386SMao Jinlong 27758d6386SMao Jinlong - = 0 : disable the datasets of TPDM. 28758d6386SMao Jinlong 29758d6386SMao Jinlong:Syntax: 30758d6386SMao Jinlong ``echo 1 > enable_source`` 31758d6386SMao Jinlong 32758d6386SMao Jinlong---- 33758d6386SMao Jinlong 34758d6386SMao Jinlong:File: ``integration_test`` (wo) 35758d6386SMao Jinlong:Notes: 36758d6386SMao Jinlong Integration test will generate test data for tpdm. 37758d6386SMao Jinlong 38758d6386SMao Jinlong:Syntax: 39758d6386SMao Jinlong ``echo value > integration_test`` 40758d6386SMao Jinlong 41758d6386SMao Jinlong value - 1 or 2. 42758d6386SMao Jinlong 43758d6386SMao Jinlong---- 44*70515962SBagas Sanjaya 45*70515962SBagas Sanjaya.. This text is intentionally added to make Sphinx happy. 46