Comment # 14 on bug 1193517 from Takashi Iwai

The question is whether it boots up fine without the amdgpu-pro stuff.  If it
boots at least, then it's a problem in amdgpu-pro, and AMD people has to take a
look.  OTOH, if the boot problem persists without amdgpu-pro stuff, it's the
kernel problem and we have to take a deeper look.

Also, please be careful when you uninstalling amdgpu-pro stuff.  It might leave
some broken setup at dracut config, too.  IOW, try to boot the old kernel
without amdgpu-pro, and confirm that everything works.  After that, boot with
the new kernel.