[Bug 205497] Attempt to read amd gpu id causes a freeze

https://bugzilla.kernel.org/show_bug.cgi?id=205497

--- Comment #13 from Luya Tshimbalanga (luya@fedoraproject.org) --- (In reply to Alex Deucher from comment #11)

(In reply to Trek from comment #7)

...

by default, radeontop calls amdgpu_read_mm_registers, amdgpu_query_info and amdgpu_query_sensor_info, but it can be forced by the command line to read BAR from /dev/mem

If you access the BAR directly you will likely have problems in certain power saving modes.

Can someone test the patch?

Currently building on https://copr.fedorainfracloud.org/coprs/luya/kernel-amgpu-gfxoff/build/10956...