Where can I find GPU SDK for i.MX8QM?

[gabrielaugustoc]

Hi, I would like to use OpenCL with i.MX8QM and I could not find the libraries and compiler for Vivante GC7000/XSVX GPGPU.
I have found on the i.MX Linux Reference Manual, page 166, the list of libraries for the GPU, but I did not find which libraries are for the i.MX8QM, how to get and install them.
My kernel version is 4.14.170 and I am using Debian 9 for Arm64.

[gabrielaugustoc · Accepted solution]

Hi everyone,

So, the simplest solution to use OpenCL on Debian for i.MX8QM, take the blue pill, and use the Debian10 RootFS from Variscite:
ftp://ftp.variscite.com/VAR-SOM-MX8/Software/debian/

Mount this image as a loop in the memory system, then compress with tar, and install where you want.
Thank Variscite for the amazing job.

Regards,
Gabriel

[gabrielaugustoc]

Hi,

First, thanks for helping me.
Ok, I have download L4.14.98_2.0.0_ga_images_MX8QMMEK.zip and unzip it on an NFS directory. I have unzipped fsl-image-validation-imx-imx8qmmek.tar.bz2 on an NFS folder. I booted the kernel 4.14.170 via TFTP and pointed NFS folder with the fs-image-...l RootFS. Then, I could run all examples on the /opt/imx-gpu-sdk/OpenCL/ folder without any problem.
I have downloaded the L4.14.98_2.0.0_ga_images_MX8QMMEK.zip from:
https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applicat...

So, I can use OpenCL with kernel 4.14.170, and NXP RootFS without any problem.
I did the same test using a RootFS system from Variscite, that is Debian 10, and the OpenCL is working too.

Now, I have copied the /opt/imx-gpu-sdk and all libraries dependencies to execute the OpenCL/Info example of the NXP on the Debian10, and I getting the following error:
root@apalis-iMX8:/opt/imx-gpu-sdk/OpenCL/Info# ./Info
ERROR: clGetPlatformIDs(0, nullptr, &count) failed with error code Unknown (-1001) at source/FslUtil/OpenCL1_1/OpenCLHelper.cpp(121)

and the result to check the Info library dependency is:
root@apalis-iMX8:/opt/imx-gpu-sdk/OpenCL/Info# ldd Info
linux-vdso.so.1 (0x0000ffffb051b000)
libIL.so => /usr/lib/libIL.so (0x0000ffffb03b7000)
libOpenCL.so => /usr/lib/libOpenCL.so (0x0000ffffb03a1000)
libstdc++.so.6 => /usr/lib/aarch64-linux-gnu/libstdc++.so.6 (0x0000ffffb0216000)
libm.so.6 => /lib/aarch64-linux-gnu/libm.so.6 (0x0000ffffb0159000)
libgcc_s.so.1 => /lib/aarch64-linux-gnu/libgcc_s.so.1 (0x0000ffffb0135000)
libpthread.so.0 => /lib/aarch64-linux-gnu/libpthread.so.0 (0x0000ffffb0106000)
libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000ffffaff94000)
libpng16.so.16 => /usr/lib/libpng16.so.16 (0x0000ffffaff59000)
libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x0000ffffaff0f000)
libtiff.so.5 => /usr/lib/libtiff.so.5 (0x0000ffffafe93000)
libdl.so.2 => /lib/aarch64-linux-gnu/libdl.so.2 (0x0000ffffafe7f000)
librt.so.1 => /lib/aarch64-linux-gnu/librt.so.1 (0x0000ffffafe67000)
/lib/ld-linux-aarch64.so.1 (0x0000ffffb04ed000)
libz.so.1 => /lib/aarch64-linux-gnu/libz.so.1 (0x0000ffffafe3a000)
liblzma.so.5 => /lib/aarch64-linux-gnu/liblzma.so.5 (0x0000ffffafe05000)

Probably, I am missing some configuration.
Now, I am reading the i.MX Linux Reference Manual.pdf to try to find something to fix this issue.

Is the Vivante package for i.MX8QM created by Yocto?
Maybe, I can take a look on the recipes or repository to see what I am missing!
Do you know what is the repository for the Vivante packages for i.MX8QM? 

[Bio_TICFSL]

Hello,

You must configure your kernel and pass as module the GPU.

[gabrielaugustoc]

Hi,

Thanks for your answer.
But, this will be a problem for me because I have added some image sensors drivers in the 4.14.170 Kernel. This is a branch from Toradex.
Is there another way to get the source code for these libraries and compile it for my Kernel?

Regards,
Gabriel

[Bio_TICFSL]

Hello Gabriel,

Unfortunately no from NXP, but you can consult with Toradex if they have it.

Regards

[Bio_TICFSL]

Hello gabriel,

The reason is because you are no using an nxp correct kernel version you must use 4.9.88 or 5.4.24BSP to have all the GPU libraries on it.

Regards