From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754649Ab3L0THn (ORCPT ); Fri, 27 Dec 2013 14:07:43 -0500 Received: from 2.array2.smtp.34sp.com ([46.183.9.2]:57778 "EHLO 2.array2.smtp.34sp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753044Ab3L0THm (ORCPT ); Fri, 27 Dec 2013 14:07:42 -0500 X-Greylist: delayed 493 seconds by postgrey-1.27 at vger.kernel.org; Fri, 27 Dec 2013 14:07:42 EST Date: Fri, 27 Dec 2013 18:59:25 +0000 From: David Woodfall To: linux-kernel@vger.kernel.org Subject: Problem with cpufreq and i5 since post 3.9.0 Message-ID: <20131227185924.GH17115@Blackswan> Mail-Followup-To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Disposition: inline User-Agent: Mutt/1.5.22 (2013-10-16) X-Authenticated-As: unrealize.co.uk X-OriginalSMTPIP: 82.44.71.14 Smarthost: 80.82.124.206 X-34SP-MailScanner-Information: Please contact the ISP for more information X-34SP-MailScanner-ID: 88F32FF8C3.A23DE X-34SP-MailScanner: Found to be clean X-34SP-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=0.135, required 6, BAYES_00 -1.90, LONGWORDS 2.04) X-34SP-MailScanner-From: dave@dawoodfall.net Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I recently upgraded from 3.9.0 to 3.10.17 and found that I don't have the same cpufreq governors available. I also tested with 3.12.6 and 3.13.0_rc5 with the same results. 3.9.0 tells me: cat /sys/devices/system/cpu/*/cpufreq/scaling_available_governors conservative ondemand powersave userspace performance conservative ondemand powersave userspace performance conservative ondemand powersave userspace performance conservative ondemand powersave userspace performance But any of the newer kernel versions I've tested only give me performance and powersave. I have selected userspace as default governor and all other governors as built-in on all versions. I need to either be able to use performance or use userspace and set for the max frequency. This is for an old application that tries to detect cpu speed, but fails because it is from the days before scaling. Can anyone tell me what I need to do with these newer kernels? Regards -Dave