On Mon, Jan 11, 2021 at 01:44:09PM +0100, Rafael J. Wysocki wrote:
> On Mon, Jan 11, 2021 at 8:40 AM Chen Yu <yu.c.c...@intel.com> wrote:
> >
> > Add input parameter to receive guarantee pstate from 
> > intel_pstate_get_hwp_max()
> > for later use.
> 
> I'm not a fan of this change, because the new argument will only be
> needed in one place where intel_pstate_get_hwp_max() and it requires
> adding redundant local vars and pointless updates elsewhere.
> 
> Besides, in intel_pstate_get_cpu_pstates() you can do something like
> this after calling intel_pstate_get_hwp_max():
> 
> cpu->pstate.max_pstate = HWP_GUARANTEED_PERF(READ_ONCE(cpu->hwp_cap_cached));
> cpu->pstate.max_freq = cpu->pstate.max_pstate * cpu->pstate.scaling;
Okay, will do in next version.

Thanks,
Chenyu

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