From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270831AbTGVN5K (ORCPT ); Tue, 22 Jul 2003 09:57:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270829AbTGVN5K (ORCPT ); Tue, 22 Jul 2003 09:57:10 -0400 Received: from p508EB386.dip.t-dialin.net ([80.142.179.134]:45729 "HELO neutronstar.dyndns.org") by vger.kernel.org with SMTP id S270831AbTGVNzv (ORCPT ); Tue, 22 Jul 2003 09:55:51 -0400 Date: Tue, 22 Jul 2003 16:18:39 +0200 From: textshell@neutronstar.dyndns.org To: Dominik Brodowski Cc: linux-kernel@vger.kernel.org, Henrik Persson Subject: Re: 2.6.0-test1: CPUFreq not working, can't find sysfs interface Message-ID: <20030722141839.GD7517@neutronstar.dyndns.org> References: <20030720150243.GJ2331@neutronstar.dyndns.org> <200307201745.h6KHjcHt095999@sirius.nix.badanka.com> <20030720211246.GK2331@neutronstar.dyndns.org> <20030722120811.GD1160@brodo.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030722120811.GD1160@brodo.de> User-Agent: Mutt/1.3.99i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 22, 2003 at 02:08:11PM +0200, Dominik Brodowski wrote: > > What's the output [if any] in "dmesg" starting with either "cpufreq" or > "powernow"? I included some more information about my system in my first mail, but anyway. the IMHO relevant dmesg messages are: Machine check exception polling timer started. powernow: AMD K7 CPU detected. powernow: PowerNOW! Technology present. Can scale: frequency and voltage. powernow: Found PSB header at c00f17f0 powernow: Table version: 0x12 powernow: Flags: 0x0 (Mobile voltage regulator) powernow: Settling Time: 100 microseconds. powernow: Has 14 PST tables. (Only dumping ones relevant to this CPU). Enabling SEP on CPU 0 I did a little bit of investigation in the kernel source (powernow-k7.c) and downloaded x86info. The Output of x86info --pm --bios with the following clueless little patch. --- AMD/dumppsb.c 16 Jan 2003 19:46:52 -0000 1.4 +++ AMD/dumppsb.c 22 Jul 2003 13:47:59 -0000 @@ -81,8 +81,10 @@ for (i = 0 ; i numpst; i++) { pst = (struct pst_s *) p; numpstates = pst->numpstates; - - if ((etuple(cpu) == pst->cpuid) && (maxfid==pst->maxfid) && (startvid==pst->startvid)) + printf(" --DEBUG: %x ?= %x && %d ?= %d, %d ?= %d\n", + etuple(cpu),pst->cpuid, maxfid,pst->maxfid, startvid, pst->startvid); + //if ((etuple(cpu) == pst->cpuid) && (maxfid==pst->maxfid) && (startvid==pst->startvid)) + if (1) { printf (" PST:%d (@%p)\n", i, pst); printf (" cpuid: 0x%x\t", pst->cpuid); Output: x86info v1.12. Dave Jones 2001-2003 Feedback to . Found 1 CPU -------------------------------------------------------------------------- Family: 6 Model: 10 Stepping: 0 CPU Model : Mobile Athlon XP (Barton) PowerNOW! Technology information Available features: Temperature sensing diode present. Bus divisor control Voltage ID control MSR: 0xc0010041=0x0000000000130b15 : 00000000 00000000 00000000 00000000 00000000 00010011 00001011 00010101 MSR: 0xc0010042=0x000b0b0b00150615 : 00000000 00001011 00001011 00001011 00000000 00010101 00000110 00010101 FID changes will happen VID changes will happen Current VID multiplier code: 1.450 Current FSB multiplier code: 13.5 Voltage ID codes: Maximum=1.450V Startup=1.450V Currently=1.450V Frequency ID codes: Maximum=13.5x Startup=6.0x Currently=13.5x Decoding BIOS PST tables (maxfid=15, startvid=b) Found PSB header at 0x4017d7f0 Table version: 0x12 Flags: 0x0 (Mobile voltage regulator) Settling Time: 100 microseconds. Has 14 PST tables. (Only dumping ones relevant to this CPU). --DEBUG: 7a0 ?= 780 && 21 ?= 12, 11 ?= 11 PST:0 (@0x4017d800) cpuid: 0x780 fsb: 133 maxFID: 0xc startvid: 0xb num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0x8 (7.0x [931MHz]) VID: 0xe (1.300V) FID: 0xc (9.0x [1197MHz]) VID: 0xb (1.450V) --DEBUG: 7a0 ?= 780 && 21 ?= 14, 11 ?= 11 PST:1 (@0x4017d812) cpuid: 0x780 fsb: 133 maxFID: 0xe startvid: 0xb num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0x8 (7.0x [931MHz]) VID: 0x11 (1.250V) FID: 0xe (10.0x [1330MHz]) VID: 0xb (1.450V) --DEBUG: 7a0 ?= 780 && 21 ?= 15, 11 ?= 9 PST:2 (@0x4017d824) cpuid: 0x780 fsb: 133 maxFID: 0xf startvid: 0x9 num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xa (8.0x [1064MHz]) VID: 0xc (1.400V) FID: 0xf (10.5x [1396MHz]) VID: 0x9 (1.550V) --DEBUG: 7a0 ?= 780 && 21 ?= 0, 11 ?= 9 PST:3 (@0x4017d836) cpuid: 0x780 fsb: 133 maxFID: 0x0 startvid: 0x9 num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xc (9.0x [1197MHz]) VID: 0xc (1.400V) FID: 0x0 (11.0x [1463MHz]) VID: 0x9 (1.550V) --DEBUG: 7a0 ?= 780 && 21 ?= 1, 11 ?= 9 PST:4 (@0x4017d848) cpuid: 0x780 fsb: 133 maxFID: 0x1 startvid: 0x9 num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xc (9.0x [1197MHz]) VID: 0xd (1.350V) FID: 0x1 (11.5x [1530MHz]) VID: 0x9 (1.550V) --DEBUG: 7a0 ?= 780 && 21 ?= 2, 11 ?= 10 PST:5 (@0x4017d85a) cpuid: 0x780 fsb: 133 maxFID: 0x2 startvid: 0xa num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xc (9.0x [1197MHz]) VID: 0x11 (1.250V) FID: 0x2 (12.0x [1596MHz]) VID: 0xa (1.500V) --DEBUG: 7a0 ?= 780 && 21 ?= 3, 11 ?= 10 PST:6 (@0x4017d86c) cpuid: 0x780 fsb: 133 maxFID: 0x3 startvid: 0xa num of p states in this table: 6 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xa (8.0x [1064MHz]) VID: 0x13 (1.200V) FID: 0xe (10.0x [1330MHz]) VID: 0xe (1.300V) FID: 0x3 (12.5x [1662MHz]) VID: 0xa (1.500V) --DEBUG: 7a0 ?= 781 && 21 ?= 15, 11 ?= 11 PST:7 (@0x4017d880) cpuid: 0x781 fsb: 133 maxFID: 0xf startvid: 0xb num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xa (8.0x [1064MHz]) VID: 0xe (1.300V) FID: 0xf (10.5x [1396MHz]) VID: 0xb (1.450V) --DEBUG: 7a0 ?= 781 && 21 ?= 0, 11 ?= 11 PST:8 (@0x4017d892) cpuid: 0x781 fsb: 133 maxFID: 0x0 startvid: 0xb num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xc (9.0x [1197MHz]) VID: 0xd (1.350V) FID: 0x0 (11.0x [1463MHz]) VID: 0xb (1.450V) --DEBUG: 7a0 ?= 781 && 21 ?= 1, 11 ?= 11 PST:9 (@0x4017d8a4) cpuid: 0x781 fsb: 133 maxFID: 0x1 startvid: 0xb num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xc (9.0x [1197MHz]) VID: 0xd (1.350V) FID: 0x1 (11.5x [1530MHz]) VID: 0xb (1.450V) --DEBUG: 7a0 ?= 781 && 21 ?= 2, 11 ?= 11 PST:10 (@0x4017d8b6) cpuid: 0x781 fsb: 133 maxFID: 0x2 startvid: 0xb num of p states in this table: 5 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xc (9.0x [1197MHz]) VID: 0xd (1.350V) FID: 0x2 (12.0x [1596MHz]) VID: 0xb (1.450V) --DEBUG: 7a0 ?= 781 && 21 ?= 3, 11 ?= 11 PST:11 (@0x4017d8c8) cpuid: 0x781 fsb: 133 maxFID: 0x3 startvid: 0xb num of p states in this table: 6 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0xa (8.0x [1064MHz]) VID: 0x11 (1.250V) FID: 0xe (10.0x [1330MHz]) VID: 0xd (1.350V) FID: 0x3 (12.5x [1662MHz]) VID: 0xb (1.450V) --DEBUG: 7a0 ?= 781 && 21 ?= 21, 11 ?= 11 PST:12 (@0x4017d8dc) cpuid: 0x781 fsb: 133 maxFID: 0x15 startvid: 0xb num of p states in this table: 6 FID: 0x12 (4.0x [532MHz]) VID: 0x13 (1.200V) FID: 0x4 (5.0x [665MHz]) VID: 0x13 (1.200V) FID: 0x6 (6.0x [798MHz]) VID: 0x13 (1.200V) FID: 0x8 (7.0x [931MHz]) VID: 0x13 (1.200V) FID: 0xe (10.0x [1330MHz]) VID: 0xe (1.300V) FID: 0x15 (13.5x [1796MHz]) VID: 0xb (1.450V) --DEBUG: 7a0 ?= 781 && 21 ?= 22, 11 ?= 11 PST:13 (@0x4017d8f0) cpuid: 0x781 fsb: 133 maxFID: 0x16 startvid: 0xb num of p states in this table: 5 FID: 0xb (8.5x [1130MHz]) VID: 0x13 (1.200V) FID: 0xf (10.5x [1396MHz]) VID: 0xe (1.300V) FID: 0x1 (11.5x [1530MHz]) VID: 0xd (1.350V) FID: 0x3 (12.5x [1662MHz]) VID: 0xc (1.400V) FID: 0x16 (14.0x [1862MHz]) VID: 0xb (1.450V) So it seems to me that the BIOS doesn't have the tables for my Athlon model/stepping. I tried to get a new bios from hp, but it didn't change anything relevant (they changed something in the PSTs but did not add a new one for my processor) > > I guess it's yet another BIOS problem... [as seen quite often wrt AMD > PowerNow, unfortunately] I think it would be a good thing to display a Message explaining why powernow isn't working to the user in the case that no relevant PST is found. Can you suggest any workaround for this problem, or is my only option to complain to HP do supply an updated BIOS. I very much would like to have a way to override (or add to) the bios provided values. BTW windows XP somehow manages to use powernow on this laptop anyway. Martin H.