linux-kernel - Re: cpufreq not working on AMD K8 (was Re: 2.6.19-rc1: known regressions)

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Date:	Wed, 11 Oct 2006 20:16:32 +0200
From:	Christian <christiand59@....de>
To:	"Langsdorf, Mark" <mark.langsdorf@....com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: cpufreq not working on AMD K8 (was Re: 2.6.19-rc1: known regressions)

Am Mittwoch, 11. Oktober 2006 19:33 schrieb Langsdorf, Mark:
> > It seems that my first try exceeded the LKML size limit. So
> > hopefully you should get my decompiled DSDT now as a bzip
> > compressed file.
>
> Right then.  You're completely missing the _PCT, _PPC, and
> _PSS packages, as well as the CPU scope they're normally
> defined in.  powernow-k8 is not going to work on this system.

user@...ntu:~$ uname -a
Linux ubuntu.localnet 2.6.18-rc7 #2 SMP Wed Sep 13 11:28:41 CEST 2006 x86_64 
GNU/Linux
user@...ntu:~$ dmesg | grep power
[  402.879894] powernow-k8: Found 2 AMD Athlon(tm) 64 X2 Dual Core Processor 
3800+ processors (version 2.00.00)
[  402.880409] powernow-k8:    0 : fid 0xc (2000 MHz), vid 0x8
[  402.880412] powernow-k8:    1 : fid 0xa (1800 MHz), vid 0xa
[  402.880415] powernow-k8:    2 : fid 0x2 (1000 MHz), vid 0x12
[  402.881299] powernow-k8: ph2 null fid transition 0xc

2.6.18-rc7 powerfreq works nice. Double checked it!

The decompiled DSDT is apparently the same on both kernels, except the 
filename in the dump. Maybe it's my fault. I've attached the binary DSDT dump 
of 2.6.18-rc7.

> If you boot with the 2.6.18 kernel, do you get the same
> decompiled DSDT?  If not, there's an ACPI regression you
> need to report to Len Brown.
>
> Have you upgraded the processors or BIOS on the box?

No.

-Christian

Download attachment "dsdt-2.6.18.aml" of type "application/octet-stream" (26231 bytes)

Download attachment "dsdt-2.6.18.dsl.bz2" of type "application/x-bzip2" (13214 bytes)