From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: rafael.j.wysocki@intel.com, viresh.kumar@linaro.org,
linux-pm@vger.kernel.org
Subject: Re: [PATCH] cpufreq: use last policy after online
Date: Thu, 03 Dec 2015 00:08:25 +0100 [thread overview]
Message-ID: <1664214.VxVTry24Vn@vostro.rjw.lan> (raw)
In-Reply-To: <1449093927.3240.37.camel@spandruv-desk3.jf.intel.com>
On Wednesday, December 02, 2015 02:05:27 PM Srinivas Pandruvada wrote:
> On Wed, 2015-12-02 at 03:05 +0100, Rafael J. Wysocki wrote:
> > On Tuesday, December 01, 2015 04:52:14 PM Srinivas Pandruvada wrote:
> > > For cpufreq drivers which use setpolicy interface, after offline->online
> > > the policy is set to default. This can be reproduced by setting the
> > > default policy of intel_pstate or longrun to ondemand and then change to
> > > "performance". After offline and online, the setpolicy will be called with
> > > the policy=ondemand.
> > > For drivers using governors this condition is handled by storing
> > > last_governor, during offline and restoring during online. The same should
> > > be done for drivers using setpolicy interface. Storing last_policy during
> > > offline and restoring during online.
> > >
> > > Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
> >
> > I guess this is urgent, right?
> I don't think. I tried couple of old kernels, same issue.
OK, thanks for checking!
Rafael
next prev parent reply other threads:[~2015-12-02 22:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-02 0:52 [PATCH] cpufreq: use last policy after online Srinivas Pandruvada
2015-12-02 2:05 ` Rafael J. Wysocki
2015-12-02 2:54 ` Viresh Kumar
2015-12-02 22:05 ` Srinivas Pandruvada
2015-12-02 23:08 ` Rafael J. Wysocki [this message]
2015-12-02 2:53 ` Viresh Kumar
2015-12-02 16:56 ` Srinivas Pandruvada
2015-12-02 23:21 ` Rafael J. Wysocki
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