Re: x86: Clean up computation of HPET .mult variables
From: Daniel Walker
Date: Mon May 05 2008 - 19:58:23 EST
On Mon, 2008-05-05 at 20:11 -0300, Carlos R. Mafra wrote:
> - tmp = (u64)hpet_period << HPET_SHIFT;
> - do_div(tmp, FSEC_PER_NSEC);
> - clocksource_hpet.mult = (u32)tmp;
> + clocksource_hpet.mult = div_sc(hpet_period, FSEC_PER_NSEC, HPET_SHIFT);
>
There's helper functions that should be used called clocksource_hz2mult
and one called clocksource_khz2mult. I think they're more accurate than
using div_sc.
Daniel
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