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Date: Fri, 18 Feb 2005 12:31:45 -0800
From: Nate Lawson <nate@root.org>
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To: Rong-En Fan <rafan@infor.org>
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Subject: Re: patch: p4tcc and speedstep cpufreq drivers
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Rong-En Fan wrote:
> On Fri, Feb 18, 2005 at 11:26:26AM -0800, Nate Lawson wrote:
> 
>>Rong-En Fan wrote:
>>
>>>This is an TP X31.
>>>
>>>CPU: Intel(R) Pentium(R) M processor 1400MHz (1398.82-MHz 686-class CPU)
>>> Origin = "GenuineIntel"  Id = 0x695  Stepping = 5
>>> Features=0xa7e9f9bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,C
>>>LFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,TM,PBE>
>>>
>>>freq_levels looks strange.. and changes...
>>>(only cpufreq is loaded at boot)
>>>
>>>rafan@woodstock|UTF-8 [~] (15:57)$ sysctl dev.cpu
>>>dev.cpu.0.%desc: ACPI CPU (3 Cx states)
>>>dev.cpu.0.%driver: cpu
>>>dev.cpu.0.%location: handle=\_PR_.CPU_
>>>dev.cpu.0.%pnpinfo: _HID=none _UID=0
>>>dev.cpu.0.%parent: acpi0
>>>dev.cpu.0.freq: 1399
>>>dev.cpu.0.freq_levels: -738340620/0 0/0 0/0
>>
>>Which cpufreq drivers are detected in dmesg (ichss, est, p4tcc, 
>>acpi_perf, acpi_throttle)?
> 
> 
> cpu0: <ACPI CPU (3 Cx states)> on acpi0
> est0: <Enhanced SpeedStep Frequency Control> on cpu0
> p4tcc0: <CPU Frequency Thermal Control> on cpu0 
> 
> but I think Pentium M is est only, no p4tcc.

Nope, you almost certainly have p4tcc since your CPU has the ACPI and TM 
bits set above.

-- 
Nate