From mboxrd@z Thu Jan 1 00:00:00 1970 From: kristjan Subject: Atlhlon 64, overclocking and cool'n'quiet Date: Wed, 30 Mar 2011 19:07:12 +0200 Message-ID: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:content-type:subject:to:date:mime-version :content-transfer-encoding:from:message-id:user-agent; bh=ospkI52sdRp7Lb0euA3Ru9xKNJbqGp3JZ9cN0erbKa8=; b=nyYeVaeRBaPjfhEP5nNNXTCzTblSSyhn1YlQZHQPOH3R6bWuGgAj0+ecJBlKA4P9oU rIN/zKr+XyQZg44gXIxSM031CS29nfkBnSTUrZ96YvcNiMy9Z3XiiJF3XDnXjGqwa8+2 L2ATY7L2v500peghMaKsUZw3H5m99M9rcPgTo= Sender: cpufreq-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed"; delsp="yes" To: cpufreq@vger.kernel.org Hello! I've overclocked one workstation with athlon 64 2800+ cpu and I was able to get cool'n'quiet working in windows by manually setting p-states with RMClock utility and i'm trying to achieve same thing under linux kernel 2.6.38. First I've modified DSDT; multipliers are the same, since I'm not changing those, only FSB frequency, which is now 260 Mhz with HT multiplier of 3, that gives: 780 + 2*130 = 1040 780 + 10*130 = 2080 I'm a bit confused though - fid multiplier is different under windows and in bios - there it is used x9 which conforms with highest cpu frequency reported by various tools in windows: 2340 Mhz = 260 * 9 (it is actually running at 2342 - this is what various tools say) but I can't get it via traditional formula. Booting vanilla kernel without modified DSDT will give me only 1 performance state with locked 2343 Mhz. However setting highest pss in DSDT to 2343 (0x0927) as highest will lead to non working cool'n'quiet: ---- Mar 30 18:24:02 kriko kernel: [ 14.162636] powernow-k8: Found 1 AMD Athlon(tm) 64 Processor 2800+ (1 cpu cores) (version 2.20.00) Mar 30 18:24:02 kriko kernel: [ 14.162683] powernow-k8: invalid freq entries 1800000 kHz vs. 2343000 kHz Mar 30 18:24:02 kriko kernel: [ 14.162685] powernow-k8: invalid freq entries 1000000 kHz vs. 1040000 kHz Mar 30 18:24:02 kriko kernel: [ 14.162691] [Firmware Bug]: powernow-k8: invalid powernow_table ---- What the correct frequency this cpu is running if I set fsb to 260 Mhz so the cpufreq driver will accept it? Thanks -- Kristjan Ugrin