TDA4VH-Q1: Check the GPU load

Kamalakkannan Sankarasubbaraj

Part Number: TDA4VH-Q1

Tool/software:

Hi ,

I am trying to check the GPU load , with reference of example code :" https://git.ti.com/cgit/glsdk/example-applications/tree/cpuload-plugins/pvrscope.cpp "

SDK version : ti-processor-sdk-rtos-j784s4-evm-09_02_00_05

While building it in our framework code and we are facing lib error ie: undefined error . seems the .so is not present

gpuloadmonitor.cpp:(.text.PSInit+0x20): undefined reference to `PVRScopeInitialise'
C:\qnx710\host\win64\x86_64\usr\bin\aarch64-unknown-nto-qnx7.1.0-ld: gpuloadmonitor.cpp:(.text.PSInit+0x44): undefined reference to `PVRScopeGetCounters'
gpuloadmonitor.cpp:(.text.startup.main+0x154): undefined reference to `PVRScopeSetGroup'
gpuloadmonitor.cpp:(.text.startup.main+0x190): undefined reference to `PVRScopeReadCounters'
gpuloadmonitor.cpp:(.text.startup.main+0x1c0): undefined reference to `PVRScopeReadCounters'
gpuloadmonitor.cpp:(.text.startup.main+0x268): undefined reference to `PVRScopeDeInitialise'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `RGXDisableHWPerfCounters'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVTLOpenStream'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVTLReleaseData'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVSetClientEventFilter'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVTLDiscoverStreams'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVConnectionCreateDevice'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `RGXConfigCustomCounters'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVTLCloseStream'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVTLAcquireData'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `RGXGetHWPerfBvncFeatureFlags'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `RGXCtrlHWPerf'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVGetHWPerfResourceCaptureResult'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `RGXConfigureAndEnableHWPerfCounters'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVDisconnect'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVGetDevices'
C:\ti\psdkqa\qnxfs\usr\lib\graphics\j784s4/libPVRScopeServices.so: undefined reference to `PVRSRVRequestHWPerfResourceCapture'

Please let me know how to resolve it , where we can get the library.?

Thanks

7 months ago

0 Sarabesh Srinivasan 7 months ago

TI__Genius 17720 points

Hello,

Please refer questions regarding the graphics on QNX to QNX support. QNX owns the graphics driver for psdkqa.

Thanks,
Sarabesh S.

0 Kamalakkannan Sankarasubbaraj 6 months ago in reply to Sarabesh Srinivasan

Intellectual 277 points

Hi Experts,

Thanks for guiding us.

Now with QNX guideline , we are able to build the sample gpu load application "https://git.ti.com/cgit/glsdk/example-applications/tree/cpuload-plugins/pvrscope.cpp?h=master"

but while executing on ECU we notice that "m_uCounterNum" we are getting '0' when below PSInit is called

if (PSInit(&m_psData, &m_psCounters, &m_sReading, &m_uCounterNum))
{
printf("PVRScope up and running. GPU Frequency = %f\n", m_gpu_freq);
sleep(1);
}

and below code is giving pnCount = 0

if (PVRScopeGetCounters(*ppsPVRScopeData, pnCount, ppsCounters, psReading))
{
printf("Total counters enabled: %d.", *pnCount);
}

And hence the below line of code cause core dump as its trying to access data at index 5 which is not there .

f_gpuload = (int)((m_sReading.pfValueBuf[5]*m_sReading.pfValueBuf[4]/m_gpu_freq )*100)/100;

Please let us know if any modification is needed in code or any steps we are missing.

Thanks

0 Kamalakkannan Sankarasubbaraj 6 months ago in reply to Kamalakkannan Sankarasubbaraj

Intellectual 277 points

Hi Sarabesh S.

Please support here as its urgent ...!

Thanks

0 Sarabesh Srinivasan 6 months ago in reply to Kamalakkannan Sankarasubbaraj

TI__Genius 17720 points

Hello,

It seems you may be missing some steps regarding the initialization of the GPU that should occur before you should run before PVRScopeGetCounters.

On Linux SDK, these are typically pre-configured by the kernel module or firmware. Please refer to QNX support to determine what functions need to be called to complete initializing the HWPerf path.

Thank you,
Sarabesh S.

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TDA4VH-Q1: Check the GPU load