Comment # 55 on bug 1185513 from Joey Lee

(In reply to Frank Kr���ger from comment #54)
> (In reply to Joey Lee from comment #53)
> > Hi Anthony, and anyone got the same problem.
> > 
> > On x86 platform, the _CPC affects intel_pstate drivers. Base on source code,
> > the CPU priority based on ITMI (Intel Turbo Boost Max Technology) will not
> > be set when _CPC is broken. Using no_hwp module parameter can disable the
> > CPPC part in intel_pstate drivers, it may workaround issue.
> > 
> > Sorry for I am not familiar with intel_pstate driver, and I didn't find a
> > _CPC machine yet. So I don't know what's the really affect to intel_pstate
> > and CPU performance.
> > 
> > I will raise this situation on upstream.
> 
> JFYI https://bugzilla.kernel.org/show_bug.cgi?id=213023#c25

Yes, I will backport Hans's patch to openSUSE TW kernel for testing.