cvs commit: src/sys/i386/i386 p4tcc.c src/sys/conf files.i386 options.i386 src/sys/i386/conf NOTES

Maxim Sobolev sobomax at
Sun Jan 18 13:06:58 PST 2004

sobomax     2004/01/18 13:06:57 PST

  FreeBSD src repository

  Modified files:
    sys/conf             options.i386 files.i386 
    sys/i386/conf        NOTES 
  Added files:
    sys/i386/i386        p4tcc.c 
  Add new CPU_ENABLE_TCC option, from NOTES:
  CPU_ENABLE_TCC enables Thermal Control Circuitry (TCC) found in some
  Pentium(tm) 4 and (possibly) later CPUs. When enabled and detected,
  TCC allows to restrict power consumption by using machdep.cpuperf*
  sysctls. This operates independently of SpeedStep and is useful on
  systems where other mechanisms such as apm(4) or acpi(4) don't work.
  Given the fact that many, even modern, notebooks don't work properly
  with Intel ACPI, this is indeed very useful option for notebook owners.
  Obtained from:  OpenBSD
  MFC after:      2 weeks
  Revision  Changes    Path
  1.463     +1 -0      src/sys/conf/files.i386
  1.208     +1 -0      src/sys/conf/options.i386
  1.1115    +7 -0      src/sys/i386/conf/NOTES
  1.1       +244 -0    src/sys/i386/i386/p4tcc.c (new)

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