From: Jacob Shin <jacob.shin@amd.com>
To: Borislav Petkov <bp@alien8.de>, Thomas Renninger <trenn@suse.de>,
"Rafael J. Wysocki" <rjw@sisk.pl>, <cpufreq@vger.kernel.org>,
<linux-pm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>
Subject: Re: [PATCH V3 2/2] cpufreq: AMD "frequency sensitivity feedback" powersave bias for ondemand governor
Date: Wed, 3 Apr 2013 12:17:38 -0500 [thread overview]
Message-ID: <20130403171738.GC17919@jshin-Toonie> (raw)
In-Reply-To: <20130403170456.GA4723@pd.tnic>
On Wed, Apr 03, 2013 at 07:04:56PM +0200, Borislav Petkov wrote:
> On Wed, Apr 03, 2013 at 11:53:24AM -0500, Jacob Shin wrote:
> > Then Thomas, Boris, would it be acceptable if enable the frequency
> > feedback feature by default with a sane powersave_bias tunable value?
> > And also add proper documentation for both vanila powersave_bias
> > and powersave_bias with AMD frequency sensitivity loaded to
> > Documentation/cpu-freq/ondemand ?
>
> Yeah, this was what I was proposing, basically. The only question here
> is, would anyone want to disable freq decisions on systems with hw
> feedback? If yes, then you'd need to be able to disable the feedback
> thing, maybe have a magic value for powersave_bias...
Writing 0 to powersave_bias or unloading the AMD driver could do that.
When the AMD driver loads, it will give a sane default value to
powersave_bias to enable it, when it unloads, it will put it back to 0
>
> Thanks.
>
> --
> Regards/Gruss,
> Boris.
>
> Sent from a fat crate under my desk. Formatting is fine.
> --
> --
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>
next prev parent reply other threads:[~2013-04-03 17:17 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-02 18:11 [PATCH V3 0/2] cpufreq: ondemand: add AMD specific powersave bias Jacob Shin
2013-04-02 18:11 ` [PATCH V3 1/2] cpufreq: ondemand: allow custom powersave_bias_target handler to be registered Jacob Shin
2013-04-02 19:24 ` Borislav Petkov
2013-04-03 5:12 ` Viresh Kumar
2013-04-02 18:11 ` [PATCH V3 2/2] cpufreq: AMD "frequency sensitivity feedback" powersave bias for ondemand governor Jacob Shin
2013-04-02 19:23 ` Borislav Petkov
2013-04-02 20:03 ` Jacob Shin
2013-04-02 20:40 ` Borislav Petkov
2013-04-02 20:51 ` Thomas Renninger
2013-04-02 21:01 ` Borislav Petkov
2013-04-03 16:53 ` Jacob Shin
2013-04-03 17:04 ` Borislav Petkov
2013-04-03 17:17 ` Jacob Shin [this message]
2013-04-03 17:30 ` Borislav Petkov
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