Install AMDGPU HiP, OpenCL on Fedora 40

1. amdgpu installer can be get from https://www.amd.com/en/support/linux-drivers

2. Expand "RHEL x86 64-Bit" and download Radeon™ Software for Linux® version xx.yy.z for RHEL 9.x.
   You will get a rpm file: amdgpu-install-xxxyyyzzz.el9.noarch.rpm.

3. Install amdgpu installer.

   $ sudo dnf install amdgpu-install-....el9.noarch.rpm
   
   $ rpm -lq amdgpu-install
   /etc/amdgpu-install
   /etc/amdgpu-install/amdgpu-setup.conf
   /etc/amdgpu-install/rocm.gpg.key
   /etc/yum.repos.d/amdgpu.repo
   /etc/yum.repos.d/rocm.repo
   /usr/bin/amdgpu-install
   /usr/bin/amdgpu-setup
   /usr/share/amdgpu-install
   /usr/share/amdgpu-install/AMDGPUPROEULA
   /usr/share/amdgpu-install/amdgpu.repo.template
   /usr/share/amdgpu-install/orig
   /usr/share/amdgpu-install/orig/amdgpu.repo
   /usr/share/amdgpu-install/orig/rocm.repo
   /usr/share/amdgpu-install/rocm.repo.template

   This package provide a script for install amdgpu: amdgpu-install, and 2 repos: amdgpu.repo and rocm.repo.

4. Edit baseurl in /etc/yum.repos.d/amdgpu*.repo, change $amdgpudistro to 9.7:

   $ sed -i -e "s#\$amdgpudistro#9.7#g" /etc/yum.repos.d/amdgpu*.repo

   The purpose of this step is replace unsupported $amdgpudistro to an available version. This article may be outdated, so you may want to open the baseurl (ignore the part from $amdgpudistro) on browser to see which version is available.

5. Enable rocm repo (if not enabled)

   $ sudo dnf config-manager --enable rocm

6. Install hip and opencl

   $ amdgpu-install --no-dkms --usecase=hip,opencl

   Option --no-dkms is important to keep using the open source driver, which is much more stable.

7. Done. Now you can open Blender (>= 3.2) to check if HiP is available in Cycle.
   If blender cannot enable HIP, try using the app downloaded from Blender website instead of the one from Fedora repo.

References

https://rocm.docs.amd.com/projects/install-on-linux/en/latest/how-to/amdgpu-install.html