ROCm Installation on Ubuntu 20.04 LTS Utilizing Upstream Kernel Drivers for GFX9-based AMD APUs

gfx9-apu-workaround.service

# Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted.

# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

[Unit]
Description=A workaround to enable GPU memory access from userspace for AMD GFX9-based APUs.
Documentation=https://github.com/RadeonOpenCompute/rocminfo/issues/40#issuecomment-777716393

[Service]
Type=oneshot
ExecStart=/usr/bin/mount -o remount,exec /dev

[Install]
WantedBy=multi-user.target

opencl-rocm-gfx9-apu.sh

#!/usr/bin/env bash
# Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted.

# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

status_grep_no_lines_selected=1

curl https://repo.radeon.com/rocm/rocm.gpg.key | gpg --dearmor | sudo tee /usr/share/keyrings/radeon-archive-keyring.gpg
# AMD APUs with GFX9 GPUs have *limited* support within ROCm 4.x.
# https://community.amd.com/t5/knowledge-base/amd-rocm-hardware-and-software-support-document/ta-p/489937
echo 'deb [arch=amd64 signed-by=/usr/share/keyrings/radeon-archive-keyring.gpg] https://repo.radeon.com/rocm/apt/debian/ ubuntu main' | sudo tee /etc/apt/sources.list.d/rocm.list
sudo apt update

# OpenCL in ROCm 4.x does **not** detect GFX9-based APUs in Linux 5.14
sudo apt -y install linux-oem-20.04c
sudo apt -y install rocm-libs
echo 'SUBSYSTEM=="kfd", KERNEL=="kfd", TAG+="uaccess", GROUP="video"' | sudo tee /etc/udev/rules.d/70-kfd.rules

groups | grep -q video
if [ "$?" -eq "${status_grep_no_lines_selected}" ]
then
    usermod -a -G video "${LOGNAME}"
    echo 'ADD_EXTRA_GROUPS=1' | sudo tee --append /etc/adduser.conf
    echo 'EXTRA_GROUPS=video' | sudo tee --append /etc/adduser.conf
fi

groups | grep -q render
if [ "$?" -eq "${status_grep_no_lines_selected}" ]
then
    usermod -a -G render "${LOGNAME}"
    echo 'EXTRA_GROUPS=render' | sudo tee --append /etc/adduser.conf
fi