There is a new pull request by ahesford against master on the void-packages repository

https://github.com/ahesford/void-packages linux
https://github.com/void-linux/void-packages/pull/21121

linux5.x: Enable DRM_AMDGPU_USERPTR and HMM_MIRROR
`DRM_AMDGPU_USERPTR` is enabled in all Void kernel configs for `i686` and `x86_64` in Linux 4.x, but not in 5.x. The `*_USERPTR` options are enabled in 5.x for the `i915` and `radeon` drivers.
The `HMM_MIRROR` option in Linux 5.x is selected when enabling `DRM_AMDGPU_USERPTR`, so this option comes along for the ride.

Both options will be required to support some AMD ROCm packages I'm hoping to prepare and submit in the near future.

These options are currently enabled for `ppc64*` across all versions of the kernel in packaged in Void, so these changes also improve consistency of configurations.

Travis will absolutely timeout building these kernels, so I'm skipping CI.

A patch file from https://github.com/void-linux/void-packages/pull/21121.patch is attached