Date: Fri, 18 Feb 2005 12:31:45 -0800 From: Nate Lawson <nate@root.org> To: Rong-En Fan <rafan@infor.org> Cc: current@freebsd.org Subject: Re: patch: p4tcc and speedstep cpufreq drivers Message-ID: <421650B1.3080408@root.org> In-Reply-To: <20050218202255.GA71615@svm.csie.ntu.edu.tw> References: <4213F066.2050708@root.org> <4214119B.2010909@telia.com> <421537E9.8050203@root.org> <20050218075843.GA42365@svm.csie.ntu.edu.tw> <42164162.5090005@root.org> <20050218202255.GA71615@svm.csie.ntu.edu.tw>
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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
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