powernow & ACPI & 2.6.9

powernow & ACPI & 2.6.9

[Giuseppe Martino]

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Hi to All,

I'm trying to switching from 2.6.8 to 2.6.9.
But I have some problems with ACPI and powernow.

Output of Kernel 2.6.8:

powernow: PowerNOW! Technology present. Can scale: frequency and voltage.
powernow: FSB: 132.713 MHz
powernow: Found PSB header at c00f06f0
powernow: Table version: 0x12
powernow: Flags: 0x0 (Mobile voltage regulator)
powernow: Settling Time: 100 microseconds.
powernow: Has 8 PST tables. (Only dumping ones relevant to this CPU).
powernow: PST:3 (@c00f0746)
powernow:  cpuid: 0x7a0	fsb: 133	maxFID: 0x1a	startvid: 0x7
powernow:    FID: 0x0 (11.0x [1459MHz])	VID: 0xe (1.300V)
powernow:    FID: 0x1 (11.5x [1526MHz])	VID: 0xd (1.350V)
powernow:    FID: 0x2 (12.0x [1592MHz])	VID: 0xc (1.400V)
powernow:    FID: 0x3 (12.5x [1658MHz])	VID: 0xb (1.450V)
powernow:    FID: 0x14 (13.0x [1725MHz])	VID: 0xa (1.500V)
powernow:    FID: 0x15 (13.5x [1791MHz])	VID: 0x9 (1.550V)
powernow:    FID: 0x18 (15.0x [1990MHz])	VID: 0x8 (1.600V)
powernow:    FID: 0x1a (16.0x [2123MHz])	VID: 0x7 (1.650V)
powernow: SGTC: 13333
powernow: Minimum speed 1459 MHz. Maximum speed 2123 MHz.

Output of Kernel 2.6.9:

powernow: PowerNOW! Technology present. Can scale: frequency and voltage.
powernow: No PST tables match this cpuid (0x7a0)
powernow: This is indicative of a broken BIOS.
powernow: Trying ACPI perflib
powernow: Minimum speed 298 MHz. Maximum speed 796 MHz.

Output on Kernel 2.6.9 patched with acpi-20041105-26-latest-release.diff.bz2:

powernow: PowerNOW! Technology present. Can scale: frequency and voltage.
powernow: No PST tables match this cpuid (0x7a0)
powernow: This is indicative of a broken BIOS.
powernow: Trying ACPI perflib
powernow: Minimum speed 298 MHz. Maximum speed 796 MHz.

The kernel 2.6.9 isn't able to catch my DSDT?

How could I fix it?

Thank you
Giuseppe

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Re: powernow & ACPI & 2.6.9

[Bruno Ducrot]

On Fri, Nov 19, 2004 at 09:38:51AM +0100, Giuseppe Martino wrote:
> Hi to All,
> Output on Kernel 2.6.9 patched with acpi-20041105-26-latest-release.diff.bz2:
> 
> powernow: PowerNOW! Technology present. Can scale: frequency and voltage.
> powernow: No PST tables match this cpuid (0x7a0)
> powernow: This is indicative of a broken BIOS.
> powernow: Trying ACPI perflib
> powernow: Minimum speed 298 MHz. Maximum speed 796 MHz.
> 
> The kernel 2.6.9 isn't able to catch my DSDT?

Could you please test those patches:
http://www.poupinou.org/cpufreq/powernow-k7/recalibrate_cpu_khz/powernow-k7.recalibrate-cpu_khz.diff
and
http://www.poupinou.org/cpufreq/powernow-k7/recalibrate_cpu_khz/timers-recalibrate_cpu_khz.diff

You need the two patches.

They have been already submitted to the cpufreq-dev mailing-list (which
is the appropriate place for discussing this kind of issue btw).

Cheers,

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.


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Re: powernow & ACPI & 2.6.9

[Andrea Borgia]

Bruno Ducrot wrote:

> Could you please test those patches:
> http://www.poupinou.org/cpufreq/powernow-k7/recalibrate_cpu_khz/powernow-k7.recalibrate-cpu_khz.diff
> and
> http://www.poupinou.org/cpufreq/powernow-k7/recalibrate_cpu_khz/timers-recalibrate_cpu_khz.diff

On a 2.6.10-rc2 plus acpi 20041105, these two patches fix the problem 
here on my Acer 1357 (Mobile Athlon XP 3000+)

KUTGW,
Andrea.

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Re: powernow & ACPI & 2.6.9

[Andrea Borgia]

Bruno Ducrot wrote:

> Could you please test those patches:
> http://www.poupinou.org/cpufreq/powernow-k7/recalibrate_cpu_khz/powernow-k7.recalibrate-cpu_khz.diff
> and
> http://www.poupinou.org/cpufreq/powernow-k7/recalibrate_cpu_khz/timers-recalibrate_cpu_khz.diff

I've just tried 2.6.10-rc3, that still has the same "weird speed" 
problem as 2.6.9, and I'm glad to report that those two patches apply 
cleanly and fix the problem in this case too.

BR,
Andrea.

-- 
Homepage: http://andrea.borgia.bo.it     /    Amateur radio: IZ4FHT
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?


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Re: powernow & ACPI & 2.6.9

[Andrea Borgia]

Andrea Borgia wrote:

> Bruno Ducrot wrote:
>> Could you please test those patches:
>> http://www.poupinou.org/cpufreq/powernow-k7/recalibrate_cpu_khz/powernow-k7.recalibrate-cpu_khz.diff 
>> and
>> http://www.poupinou.org/cpufreq/powernow-k7/recalibrate_cpu_khz/timers-recalibrate_cpu_khz.diff 
> 
> I've just tried 2.6.10-rc3, that still has the same "weird speed" 
> problem as 2.6.9, and I'm glad to report that those two patches apply 
> cleanly and fix the problem in this case too.

Ditto for 2.6.10

BR,
Andrea.

-- 
Homepage: http://andrea.borgia.bo.it     /    Amateur radio: IZ4FHT
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?


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SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
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