cpufreq not happy on my laptop

[Eric Anholt]

On Thu, 2005-02-24 at 14:37 -0500, John Baldwin wrote:
> Nate,
> 
> First off, this is the big green laptop that has a desktop P4 in it, so I'm
> aware that this is very much an edge case.  The system does support ACPI duty
> width type throttling and even has the T2 and T3 constants for use with _PSV.
> I tried cpufreq(4) on it with the recent updates and it's not too happy.
> Before the p4tcc driver was added, this is what I got:
> 
> CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2392.25-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0xf24  Stepping = 4
>   Features=0x3febf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,P
> AT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM>
> ...
> cpu0: <ACPI CPU (3 Cx states)> on acpi0
> acpi_throttle0: <ACPI CPU Throttling> on cpu0
> acpi_perf0: <ACPI CPU Frequency Control> on cpu0
> 
> dev.cpu.0.%desc: ACPI CPU (3 Cx states)
> dev.cpu.0.%driver: cpu
> dev.cpu.0.%location: handle=\_PR_.CPU0
> dev.cpu.0.%pnpinfo: _HID=none _UID=0
> dev.cpu.0.%parent: acpi0
> dev.cpu.0.freq: -1
> dev.cpu.0.freq_levels: 9999/99999 9999/99999 8749/87499 7499/74999 6249/62499 4999/49999 3749/37499 2499/24999 1249/12499
> 
> After building a kernel from yesterday, I get this output:
> 
> CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2392.25-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0xf24  Stepping = 4
>   Features=0x3febf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,P
> AT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM>
> ...
> cpu0: <ACPI CPU (3 Cx states)> on acpi0
> acpi_throttle0: <ACPI CPU Throttling> on cpu0
> p4tcc0: <CPU Frequency Thermal Control> on cpu0
> acpi_perf0: <ACPI CPU Frequency Control> on cpu0
> 
> dev.cpu.0.%desc: ACPI CPU (3 Cx states)
> dev.cpu.0.%driver: cpu
> dev.cpu.0.%location: handle=\_PR_.CPU0
> dev.cpu.0.%pnpinfo: _HID=none _UID=0
> dev.cpu.0.%parent: acpi0
> dev.cpu.0.freq: -1
> dev.cpu.0.freq_levels: 9999/99999 9999/99999 8749/87499 7655/76561 7499/74999 6561/65624 6249/62499 5624/56249 5468/54686 4999/49999 4686/46874 4374/43749 3905/39061 3749/37499 3280/32812 3124/31249 2812/28124 2499/24999 2343/23437 2187/21874 1874/18749 1562/15624 1405/14062 1249/12499 1093/10937 937/9374 781/7812 624/6249 468/4687 312/3124 156/1562
> 
> In addition, the newer kernel breaks Xorg, though that may not be cpufreq's problem:
> 
> Release Date: 18 December 2003
> X Protocol Version 11, Revision 0, Release 6.7
> Build Operating System: FreeBSD 5.2 i386 [ELF]
> Current Operating System: FreeBSD slimer.baldwin.cx 6.0-CURRENT FreeBSD 6.0-CURR
> ENT #27: Wed Feb 23 17:42:59 EST 2005     john at slimer.baldwin.cx:/usr/src/sys/i3
> 86/compile/SLIMER i386
> Build Date: 11 August 2004
>         Before reporting problems, check http://wiki.X.Org
>         to make sure that you have the latest version.
> Module Loader present
> Markers: (--) probed, (**) from config file, (==) default setting,
>         (++) from command line, (!!) notice, (II) informational,
>         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> (==) Log file: "/var/log/Xorg.0.log", Time: Thu Feb 24 14:23:41 2005
> (==) Using config file: "/etc/X11/xorg.conf"
> (EE) RADEON(0): [drm] Failed to map vertex/indirect buffers list
> Could not init font path element /usr/X11R6/lib/X11/fonts/Speedo/, removing from
>  list!
> (EE) RADEON(0): RADEONCPGetBuffer: CP GetBuffer -1020
> (EE) RADEON(0): GetBuffer timed out, resetting engine...
> (EE) RADEON(0): RADEONCPGetBuffer: CP reset -1020
> (EE) RADEON(0): RADEONCPGetBuffer: CP start -1020
> (EE) RADEON(0): RADEONCPGetBuffer: CP GetBuffer -1020
> (EE) RADEON(0): GetBuffer timed out, resetting engine...
> (EE) RADEON(0): RADEONCPGetBuffer: CP reset -1020
> (EE) RADEON(0): RADEONCPGetBuffer: CP start -1020
> 
> (last messages repeat until they filled up /var)

This is phk's fault -- he intentionally broke the drm.  He described how
it should be fixed, but I just don't have the time to do it right now
(though I did have a major update for the DRM almost ready to merge).

-- 
Eric Anholt                                eta at lclark.edu          
http://people.freebsd.org/~anholt/         anholt at FreeBSD.org