
In recent months IBM engineer Donet Tom has been working on improving support for non-4K page size systems with the AMD kernel graphics/compute driver code. Among that work is addressing fallout when running ROCm-related tests on IBM Power hardware using a 64KB page size kernel.
That patch series in full can be found on the kernel mailing list . In this week's AMDGPU pull request for Linux 7.2, one of the patches from that series got picked up. That change is a GART fix for non-4K pages.
While this IBM engineer is focused on improving AMDGPU/ROCm support for AMD hardware on Power servers, this benefits other non-4K kernels like ARM. ARM Linux servers show very nice benefits from a 64K page size kernel .
The full list of AMDGPU patches for the week sent in for Linux 7.2 can be found via this pull request .