From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg KH <greg@kroah.com>
Subject: Re: [stable request <=3.7] acpi-cpufreq: set current frequency based
 on target P-State
Date: Fri, 11 Apr 2014 09:05:43 -0700
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To: rosslagerwall@gmail.com
Cc: Vinson Lee <vlee@twopensource.com>, stable@vger.kernel.org, "Rafael J. Wysocki" <rjw@rjwysocki.net>, Viresh Kumar <viresh.kumar@linaro.org>, cpufreq@vger.kernel.org, linux-pm@vger.kernel.org, Len Brown <len.brown@intel.com>, "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>

On Tue, Mar 25, 2014 at 10:18:03PM +0000, rosslagerwall@gmail.com wrote:
> On Tue, Mar 25, 2014 at 03:04:16PM -0700, Vinson Lee wrote:
> > Hi.
> > 
> > Please backport upstream commit 8673b83bf2f013379453b4779047bf3c6ae387e4 
> > "acpi-cpufreq: set current frequency based on target P-State" to stable 
> > kernels 3.7 and earlier. This patch enables the kernel to control 
> > P-states on several platforms. Without this patch, the kernel was unable 
> > to control P-states on the same platforms.
> > 
> > The upstream patch cleanly applies to 3.7.
> > 
> > A backported patch is needed with the removal of SYSTEM_AMD_MSR_CAPABLE 
> > for kernels 3.6 and earlier.
> > 
> 
> I seem to recall that the problem was a regression introduced by commit
> 5a1c0228 (cpufreq: Avoid calling cpufreq driver's target() routine if
> target_freq == policy->cur) which was introduced in the 3.8 cycle.  Are
> you sure it is necessary for kernels < 3.8?

Given the lack of response here, I'm dropping these from my queue.  If
someone wants them back in, please resend after responding to this...

greg k-h