Messages in this thread |  | | | Date | Mon, 26 Sep 2005 09:30:11 +0200 (METDST) | | From | Clemens Ladisch <> | | Subject | Re: [PATCH 2/2] HPET: make frequency calculations 32 bit safe |
Karsten Wiese wrote: > > --- linux-2.6.13.orig/drivers/char/hpet.c 2005-09-22 11:10:01.000000000 +0200 > > +++ linux-2.6.13/drivers/char/hpet.c 2005-09-22 12:08:48.000000000 +0200 > > ... > > - unsigned long hp_period; > > + unsigned long long hp_tick_freq; > > An 'unsigned long' is enough. > Are we expecting hpets stepping at more than 4GHz?
The HPET specification allows up to 10 GHz.
> They are called 'legacy' in some docs already ;-)
Do these docs mention a non-legacy alternative?
> Here the via8237's hpet runs at ~14MHz.
AFAIK all current implementations still use the good ol' 14.138180MHz timer.
Regards, Clemens
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