Hi,
On 2/13/21 10:41 PM, Tom Seewald wrote:
> The GPUs also have firmware blobs
Could you provide some links to mailing list posts or bug reports where AMD
developers confirm that their GPU firmware requires 4k pages? I think having
some definitive sources will make this situation more clear.
So far the only amdgpu bug report I could find that relates to 64k pages[1] is
a regression, as the reporter states the driver works with the 5.4 kernel. If
someone with a power9 machine is willing to bisect the issue I think that would
greatly increase the odds of this bug being resolved.
I can confirm that amdgpu worked with 64k pages on arm in the past with
various GPUs. I haven't been testing it regularly though, but we will
want it for rhel/centos which use 64k pages on aarch64 too.
[1] https://gitlab.freedesktop.org/drm/amd/-/issues/1446
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