acpi ok but cpufreq not supporting my CPUs

[Patrick Proniewski]

Hi,

On 15 janv. 2007, at 17:51, Bruno Ducrot wrote:

>> cpu0: <ACPI CPU> on acpi0
>> est0: <Enhanced SpeedStep Frequency Control> on cpu0
>> est: CPU supports Enhanced Speedstep, but is not recognized.
>> est: cpu_vendor GenuineIntel, msr a1e0a1e06000a1e
>> device_attach: est0 attach returned 6
>> p4tcc0: <CPU Frequency Thermal Control> on cpu0
>>
>> (same for cpu1/2/3)
>>
>> Is there anything I can do to make "est" work with the sossaman CPU ?
>
> It's not possible, AFAIK, to build a static table for your processor,
> and in that case, we have to use an ACPI table in order to compute
> a custom table.  If such information is not available, then there
> is little hope to make est working, being an SMP problem or not is
> not your problem I'm afraid.  It maybe possible you forgot a
> BIOS option somewhat so such this configuration will be generated
> and exposed via ACPI though, or maybe you have to upgrade to a
> newer BIOS.

hmmm I've to take a look at the BIOS. I know it's the latest  
available from TYAN, but I'm not sure about my settings.  
Unfortunately, the BIOS itself is not well commented (right part of  
screen is often non-informative), and even more poorly documented  
(paper documentation is not synced with BIOS, and miss important  
features).

Next time I boot, I'll take pictures of BIOS screens, so that I don't  
have to reboot every time I want to check something ;)

One thing I know, is that loading cpufreq after boot time gave me an  
updated dev.cpu.0.freq_levels with about 20 values instead of 8.  
Powerd was able to lower cpu freq to the new lowest value, but was  
never able to increase it under load (and the reboot did not go very  
smoothly)


thanks,

Patrick