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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > -----Original Message----- > From: Suzuki K Poulose > Sent: Wednesday, July 5, 2023 1:57 PM > To: Pandey, Radhey Shyam ; > mathieu.poirier@linaro.org; mike.leach@linaro.org; leo.yan@linaro.org; > alexander.shishkin@linux.intel.com > Cc: coresight@lists.linaro.org; linux-arm-kernel@lists.infradead.org > Subject: Re: Linux coresight arm64 : Incorrect data in cstrace.bin > > Hi Radhe Shyam > > On 05/07/2023 05:38, Pandey, Radhey Shyam wrote: > > Hi, > > > > I am using linux 6.1 kernel coresight framework to capture ETM trace. > > Enabled coresight driver and added coresight component device node in > > DTS. With that, we could probe all coresight components. > > > > But when we do capture using sysfs and then read the trace.bin using > > ptm2human we see invalid trace data. Trace content changes on each > > capture. Any pointers to help narrow down the issue? > > > > Tried: sysfs capture and perf (with OpenCSD enabled) > > > > Development board: VCK190 : > > https://docs.xilinx.com/r/en-US/ug1366-vck190-eval-bd > > https://www.xilinx.com/support/documents/architecture- > manuals/am011-ve > > rsal-acap-trm.pdf > > > > xilinx-vck190-20231:/home/petalinux# dmesg | grep -i amba > > [ 0.301054] Serial: AMBA PL011 UART driver > > [ 0.306226] amba f0c20000.funnel: Fixing up cyclic dependency with > f0d70000.etm > > [ 0.313624] amba f0c20000.funnel: Fixing up cyclic dependency with > f0d30000.etm > > [ 0.321110] amba f0c30000.etf: Fixing up cyclic dependency with > f0c20000.funnel > > [ 1.470247] Serial: AMBA driver > > xilinx-vck190-20231:/home/petalinux# dmesg | grep -i coresight > > [ 1.865006] cs_system_cfg: CoreSight Configuration manager initialised > > [ 1.876858] coresight etm0: CPU0: etm v4.0 initialized > > [ 1.885666] coresight etm1: CPU1: etm v4.0 initialized > > [ 1.894435] coresight-cpu-debug f0d00000.debug1: Coresight debug-CPU0 > initialized > > [ 1.902072] coresight-cpu-debug f0d40000.debug1: Coresight debug-CPU1 > initialized > > > > xilinx-vck190-20231:/home/petalinux# ls /sys/bus/coresight/devices/ > > etm0 etm1 funnel0 tmc_etf0 > > > > cd /sys/bus/coresight/devices/ > > echo 1 > tmc_etf0/enable_sink > > echo 1 > etm0/enable_source > > echo 0 > etm0/enable_source > > echo 0 > tmc_etf0/enable_sink > > cd /root/ dd if=/dev/tmc_etf0 of=cstrace_28Jun.bin > > > > ./ptm2human/ptm2human -e -i cstrace.bin -d > > Please note that ptm2human is for PTM trace decoding and > ETMv4 uses a different format and thus is not compatible. > > > > > I also tried OpenCSD integration with PERF. > > Have you made sure the perf is "linked" to the opencsd ? Earlier I statically linked but after adding CORESIGHT=1. linux-xlnx$ make ARCH=arm64 NO_LIBELF=1 NO_JVMTI=1 VF=1 CORESIGHT=1 -C tools/perf/ make: Entering directory 'linux-xlnx/tools/perf' BUILD: Doing 'make -j24' parallel build Makefile.config:520: *** Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1. Stop. echo $CSINCLUDES /scratch/development/coresight/my-opencsd/decoder/include radheys@xhdradheys41:/scratch/development/linux-xlnx$ ls /scratch/development/coresight/my-opencsd/decoder/include common i_dec interfaces mem_acc opencsd opencsd.h pkt_printers echo $CSLIBS /scratch/development/coresight/my-opencsd/decoder/lib/builddir radheys@xhdradheys41:/scratch/development/linux-xlnx$ ls /scratch/development/coresight/my-opencsd/decoder/lib/builddir libopencsd.a libopencsd_c_api.so libopencsd_c_api.so.1.4.0 libopencsd.so.1 libopencsd_c_api.a libopencsd_c_api.so.1 libopencsd.so libopencsd.so.1.4.0 Anything I am missing to fix this opencsd lib not found? > > $ ldd $(which perf) | grep opencsd > > With opencsd in, perf report -D should be able to decode the trace packets. > > > Suzuki > > > > > 0x1e0@perf.data [0x90]: event: 69 > > . > > . ... raw event: size 144 bytes > > . 0000: 45 00 00 00 00 00 90 00 04 00 00 00 00 00 00 00 E............... > > . 0010: 48 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 H............... > > . 0020: 00 00 00 00 00 00 00 00 74 03 00 00 00 00 00 00 ........t....... > > . 0030: 49 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 I............... > > . 0040: 01 00 00 00 00 00 00 00 74 03 00 00 00 00 00 00 ........t....... > > . 0050: 4a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 J............... > > . 0060: 00 00 00 00 00 00 00 00 74 03 00 00 00 00 00 00 ........t....... > > . 0070: 4b 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 K............... > > . 0080: 01 00 00 00 00 00 00 00 74 03 00 00 00 00 00 00 ........t....... > > > > 0 0 0x1e0 [0x90]: PERF_RECORD_ID_INDEX nr: 4 > > ... id: 72 idx: 0 cpu: 0 tid: 884 > > ... id: 73 idx: 1 cpu: 1 tid: 884 > > ... id: 74 idx: 0 cpu: 0 tid: 884 > > ... id: 75 idx: 1 cpu: 1 tid: 884 > > > > 0x270@perf.data [0xc8]: event: 70 > > . > > . ... raw event: size 200 bytes > > . 0000: 46 00 00 00 00 00 c8 00 03 00 00 00 00 00 00 00 F............... > > . 0010: 01 00 00 00 00 00 00 00 02 00 00 00 08 00 00 00 ................ > > . 0020: 00 00 00 00 00 00 00 00 40 40 40 40 40 40 40 40 > > ........@@@@@@@@ . 0030: 00 00 00 00 00 00 00 00 07 00 00 00 00 00 00 > 00 ................ > > . 0040: 40 08 00 00 00 00 00 00 10 00 00 00 00 00 00 00 @............... > > . 0050: a1 0e 00 28 00 00 00 00 01 f4 00 41 00 00 00 00 ...(.......A.... > > . 0060: 88 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > > . 0070: cc 00 00 00 00 00 00 00 40 40 40 40 40 40 40 40 > > ........@@@@@@@@ . 0080: 01 00 00 00 00 00 00 00 07 00 00 00 00 00 00 > 00 ................ > > . 0090: 40 08 00 00 00 00 00 00 12 00 00 00 00 00 00 00 @............... > > . 00a0: a1 0e 00 28 00 00 00 00 01 f4 00 41 00 00 00 00 ...(.......A.... > > . 00b0: 88 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > > . 00c0: cc 00 00 00 00 00 00 00 ........ > > > > 0 0 0x270 [0xc8]: PERF_RECORD_AUXTRACE_INFO type: 3 > > - log 58/58 100% > > > > > > Thanks, > > Radhey _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel