From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: "Pandey, Radhey Shyam" <radhey.shyam.pandey@amd.com>,
"mathieu.poirier@linaro.org" <mathieu.poirier@linaro.org>,
"mike.leach@linaro.org" <mike.leach@linaro.org>,
"leo.yan@linaro.org" <leo.yan@linaro.org>,
"alexander.shishkin@linux.intel.com"
<alexander.shishkin@linux.intel.com>
Cc: "coresight@lists.linaro.org" <coresight@lists.linaro.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: Linux coresight arm64 : Incorrect data in cstrace.bin
Date: Wed, 5 Jul 2023 11:19:00 +0100 [thread overview]
Message-ID: <4cc16daa-a1bc-a9ea-960a-44de894c8b30@arm.com> (raw)
In-Reply-To: <MN0PR12MB5953BC5FE08CF87119D0BAB1B72FA@MN0PR12MB5953.namprd12.prod.outlook.com>
On 05/07/2023 10:56, Pandey, Radhey Shyam wrote:
>> -----Original Message-----
>> From: Suzuki K Poulose <suzuki.poulose@arm.com>
>> Sent: Wednesday, July 5, 2023 1:57 PM
>> To: Pandey, Radhey Shyam <radhey.shyam.pandey@amd.com>;
>> 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?
Have you checked the libopencsd version ? It looks it must be able to
pick up the path for lib/headers.
Suzuki
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next prev parent reply other threads:[~2023-07-06 2:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <MN0PR12MB5953EED4468905E749489200B72FA@MN0PR12MB5953.namprd12.prod.outlook.com>
2023-07-05 8:26 ` Linux coresight arm64 : Incorrect data in cstrace.bin Suzuki K Poulose
2023-07-05 9:56 ` Pandey, Radhey Shyam
2023-07-05 10:19 ` Suzuki K Poulose [this message]
2023-07-05 10:48 ` Pandey, Radhey Shyam
2023-07-05 10:58 ` James Clark
2023-07-05 11:48 ` Pandey, Radhey Shyam
2023-07-05 12:14 ` James Clark
2023-07-06 12:09 ` Pandey, Radhey Shyam
2023-07-06 12:47 ` Pandey, Radhey Shyam
2023-07-07 8:49 ` James Clark
2023-07-07 15:50 ` James Clark
2023-07-11 9:30 ` Pandey, Radhey Shyam
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