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rocm-flatpak

This repo is an initial cut of building the AMD ROCm stack for Flatpak 23.08. It currently builds OpenCL. The ROCm Runtime Extension it builds sits on top of the Mesa in Freedesktop SDK org.freedesktop.Platform.GL.default; so you will need to use both to get working OpenGL+OpenCL.

Building

23.08 is based on BuildStream2.

Install Buildstream2 and plugins:

  1. Install BuildStream2:
sudo dnf install bubblewrap fuse3 git lzip patch python3 python3-pip
pip3 install buildstream buildstream-external bst-plugins-experimental buildstream-plugins dulwich
  1. Build this repo, and export to a Flatpak repo:
bst build rocm-flatpak.bst
bst artifact checkout --directory ~/rocm-repo rocm-flatpak.bst
flatpak remote-add --user rocm-repo ~/rocm-repo --no-gpg-verify
flatpak install --user org.freedesktop.Platform.GL.ROCm
    1. (optional) Export the build product to a single-file bundle
flatpak build-bundle --runtime ~/rocm-repo rocm.flatpak org.freedesktop.Platform.GL.ROCm 23.08
  1. Using ROCm for OpenCL:
    Currently the Freedesktop SDK doesn't know how to autoload the AMD ROCm extension. Until it does you'll need to update the FLATPAK_GL_DRIVERS environment variable to run OpenCL apps. Example:
❯ export FLATPAK_GL_DRIVERS=ROCm:default

If you use systemd, you can use the following to set this permanently into your environment:

mkdir -p ~/.config/environment.d
echo FLATPAK_GL_DRIVERS=ROCm:default | tee ~/.config/environment.d/60-flatpak_gl_drivers.conf

After a logout and login, or reboot you should see FLATPAK_GL_DRIVERS set in the environment.

ClInfo:

❯ flatpak run --device=all --command=/bin/bash --devel org.freedesktop.Platform.ClInfo
[📦 org.freedesktop.Platform.ClInfo ~]$ clinfo
Number of platforms                               2
  Platform Name                                   Clover
  Platform Vendor                                 Mesa
  Platform Version                                OpenCL 1.1 Mesa 23.0.2 (git-4d5e73870e)
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd
  Platform Extensions function suffix             MESA

  Platform Name                                   AMD Accelerated Parallel Processing
  Platform Vendor                                 Advanced Micro Devices, Inc.
  Platform Version                                OpenCL 2.1 AMD-APP (3513.0)
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd cl_amd_event_callback
  Platform Extensions function suffix             AMD
  Platform Host timer resolution                  1ns

Issues, Workarounds and Caveats

  1. /dev/kfd Currently the --device=dri flag doesn't enable access to /dev/kfd, which is required for ROCm to function. You'll need to pass --device=all to any apps to allow ROCm to see /dev/kfd. You can use Flatseal to add this to apps and make it permanent. flatpak/flatpak#5383

  2. Freedesktop Bug
    There is also a bug in the Freedesktop SDK provided Mesa OpenCL with (?) some AMD cards (?) which stops ROCm OpenCL device being used even when hard coded in the app. This happens with e.g. the Radeon 5500M in the MacbookPro16,4. https://gitlab.freedesktop.org/mesa/mesa/-/issues/4189 In this case, you can force apps to only "see" the ROCm OpenCL implementation by setting the following environment variable into the app using e.g. Flatseal:

OCL_ICD_VENDORS=/usr/lib/x86_64-linux-gnu/GL/ROCm/OpenCL/vendors
  1. Old Cards
    Older cards (RX580, etc) will require additional variables. You can set these into the app with Flatseal, or add them to /etc/environment or similar.
ROC_ENABLE_PRE_VEGA=1