Packaging the ROCK (4.11 + AMD patches) kernel

[alexanderkjeldaas]

Issue description

The ROCm project needs the ROCK kernel for a good while longer. The current ROCm release is 1.6, and 1.7 is being released now. There will be one or more releases at least before the required functionality is upstreamed.

It seems like packaging the ROCK kernel is the right thing to do in the meantime.

https://github.com/RadeonOpenCompute/ROCK-Kernel-Driver

The last changes were in August, and there are indications that it's being rebased on top of 4.13 based on ROCm/ROCm#256 comments.

[alexanderkjeldaas]

The kernel should be called 4.11.0-kfd based on the naming convention the ubuntu packages use.

[corngood]

I had a look at the default kernel config in the ROCK kernel, and the only obvious relevant difference from ubuntu was DRM_AMD_DC=y, so I enabled that and build the kernel from their tree. If you want to try the kernel, you can cherry-pick 76cb381 and set
boot.kernelPackages = pkgs.linuxPackagesFor pkgs.linux_rock.

It boots without any obvious errors, and DC seems to be working.

I'll get into the userspace stuff next.

[alexanderkjeldaas]

Cool.. I also tested this yesterday. Didn't think you'd get around to it.. :-) NixOS#32376

[alexanderkjeldaas]

Userspace seems to be a little bit more involved..

[alexanderkjeldaas]

should be out this week. https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/amd-linux/988926-amd-rolls-out-rocm-1-7-platform-for-supercomputing-17/page5

[corngood]

@alexanderkjeldaas So you tested this kernel already on NixOS? Do you have any other WIP stuff?

[alexanderkjeldaas]

I get some display issues. And wifi doesn't work. So it's not 100%.

[alexanderkjeldaas]

I have some stuff in https://github.com/alexanderkjeldaas/nixpkgs/tree/ak/rocm-changes

[alexanderkjeldaas]

roct compiles now

[corngood]

Ok, we should definitely coordinate this, because you're already doing what I was going to do next.

Is there anything in particular you're stuck on, or some work that can be divided?

[alexanderkjeldaas]

let's create a list of stuff:

I'm working on hcc, just finished hsa-runtime-amd.

• hsa-runtime-amd
• rocr-runtime
• hcc
• https://github.com/RadeonOpenCompute/ROCm-OpenCL-Driver
• ROCm-Device-Libs
• ROCm-OpenCL-Runtime

Could you try ROCm-OpenCL-Driver?

[corngood]

Sure, I'll continue with it. I will have limited time before the weekend though.

[alexanderkjeldaas]

I'm looking at https://github.com/RadeonOpenCompute/ROCm-Device-Libs now

[alexanderkjeldaas]

I'm also afraid that I don't have time to finish this.. :-)

[alexanderkjeldaas]

ROCm-Device-Libs done.
I can't edit the ROCm board.