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Slaus
Asked: 2020-02-12 05:23:19 +0800 CST

How to get OpenCL support for navi10 GPUs from AMD?

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For my AMD Radeon RX 5700XT I tried amdgpu-pro drivers (v19.50) installation on modern (kernel 5.3) Ubuntu 18.04.3 as driver claims it's supported but compilation failed with C++ errors. Tried the same on 5.0 and 5.5.2 kernels with same results (on 5.5.2 kernel it was different error though: <drm/drmP.h>: No such file or directory).

Currently I'm on kernel 5.5.2 with mesa 19.3 installed. clinfo prints a lot of satisfying information seeming it's all cool, but with such tiny little line in-between:

fatal error: cannot open file '/usr/lib/clc/gfx1010-amdgcn-mesa-mesa3d.bc': No such file or directory

which causes kernels compilation to fail (with the same error).

Anyone having any luck getting navi10 GPU OpenCL working on Ubuntu any distro?

kernel opencl amd-graphics amdgpu-pro

2 Answers

  1. Best Answer

    So, I couldn't manage amdgpu/amdgpu-pro driver to install on Ubuntu 18.04 with all permutations of:

    kernels 5.0,5.2,5.3,5.4,5.5

    gcc 7,8,9 (every version was giving different errors which I was fixing to just get other errors)

    amdgpu and amdgpu-pro versions 19.30,19.50

    But I did manage to get OpenCL working ;) What eventually succeeded for me:

    • fresh Ubuntu 18.04.3 installation
    • update kernel to version 5.4 with ukuu (next (mesa) step fails on kernel version 5.5)
    • reboot

    • install mesa 19.3:

      sudo add-apt-repository ppa:kisak/kisak-mesa

      sudo apt-get dist-upgrade

      sudo apt-get update

    • reboot

    • install OpenCL:

      sudo apt install opencl-headers ocl-icd-libopencl1 clinfo

      sudo ln -s /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 /usr/lib/libOpenCL.so

    P.S. Exploring and learning about amdgpu-pro sources while trying to fix compilation errors I discovered that AMD devs implement forthcoming GPUs directly within mesa open-source drivers and Linux kernel - months before GPUs even released. So, to jusfify AMD devs a bit, that's where the development focus is - not on amdgpu-pro.

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  2. Glad you got it working, I saw your inquiry on a few other forums while trying to find a solution. I managed to get a somewhat working solution.

    I also have the RX 5700XT, and I'm running Pop!_OS 19.10 on 5.5.5-050505-generic. For my PPA's, I have cappelikan, kisak, and oibaf; I suspect this is reproducible without them as I mainly have [a few of] them for general drivers (other than OpenCL).

    I downloaded the amdgpu-pro drivers 19.50, and installed the following (in order):

    Setting up amdgpu-core (19.50-967956) ...
Setting up amdgpu-pro-core (19.50-967956) ...
Setting up opencl-amdgpu-pro-comgr (19.50-967956) ...
Setting up opencl-amdgpu-pro-icd (19.50-967956) ...
Setting up libdrm2-amdgpu:amd64 (1:2.4.99-967956) ...
Setting up libdrm-amdgpu-amdgpu1:amd64 (1:2.4.99-967956) ...
Setting up libopencl1-amdgpu-pro:amd64 (19.50-967956) ...
Setting up clinfo-amdgpu-pro (19.50-967956) ...

    To test if OpenCL works, I ran darktable-cltest and looked for successful outputs when loading the opencl kernel.

    There is a big 'but' in all this: I cannot boot successfully (black screen, flashing lines). I'd have to CTRL+ALT+F2 and run ./amdgpu-pro-install --uninstall from the amdgpu-pro drivers directory, and then repeat the same steps above. I've tested this with the 5.3 and 5.5 kernel so far.

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