TSC instead of ACPI: powerd doesn't work anymore (to be expected?)

[Warner Losh]

> > Another thing to remember is that the TSC and ACPI hardware is not
> > the only thing we have to deal with:  Any solution we implement
> > needs to also work on other architectures, including i486 with only
> > i8254 timecounters etc.
> 
> Boy, I'm just becoming the voice of not-so-new hardware, aren't I?  ;)
> 
> My PPro uses the i8254.  So does my P133 laptop.  I presume most other
> Pentium-era machines, and probably PII's, do as well.  When DID ACPI
> become the common case?

Most pentium-era meachine use the tsc timecounter UNLESS ACPI or APM
are configured....

Warner