cvs commit: src/sys/dev/acpica acpi_throttle.c

[Nate Lawson]

njl         2005-03-04 18:59:54 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/acpica       acpi_throttle.c 
  Log:
  On i386 platforms at least, ACPI throttling is accomplished by the chipset
  modulating the STPCLK# pin based on the duty cycle.  Since p4tcc uses the
  same mechanism (but internal to the CPU), we triggered a hang on some
  systems at low frequencies when both were in use.  Now, disable
  acpi_throttle when p4tcc is also present.
  
  Tested by:      Kevin Oberman
  
  Revision  Changes    Path
  1.6       +10 -1     src/sys/dev/acpica/acpi_throttle.c