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Date:   Mon, 1 Jun 2020 16:34:18 -0700
From:   Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
To:     Giovanni Gherdovich <ggherdovich@suse.cz>
Cc:     Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
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        "Rafael J . Wysocki" <rjw@rjwysocki.net>, x86@kernel.org,
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Subject: Re: [PATCH v2 2/3] x86, sched: Bail out of frequency invariance if
 turbo frequency is unknown
Message-ID: <20200601233418.GA15416@ranerica-svr.sc.intel.com>
References: <20200531182453.15254-1-ggherdovich@suse.cz>
 <20200531182453.15254-3-ggherdovich@suse.cz>
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On Sun, May 31, 2020 at 08:24:52PM +0200, Giovanni Gherdovich wrote:
> There may be CPUs that support turbo boost but don't declare any turbo
> ratio, i.e. their MSR_TURBO_RATIO_LIMIT is all zeroes. In that condition
> scale-invariant calculations can't be performed.
> 
> Signed-off-by: Giovanni Gherdovich <ggherdovich@suse.cz>
> Suggested-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>

FWIW,

Tested-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>