Re: New SMU chip in iMac G5
Re: New SMU chip in iMac G5
- Subject: Re: New SMU chip in iMac G5
- From: Benjamin Herrenschmidt <email@hidden>
- Date: Sat, 18 Sep 2004 19:18:41 +1000
On Sat, 2004-09-18 at 19:09, Finlay Dobbie wrote:
> I don't know personally, but I'd say it's highly unlikely, given Apple
> classes its thermal management as important IP for a feature that
> distinguishes itself from the competition (and the recent fan control &
> power management kexts haven't been open-sourced).
>
> Don't hold your breath. Perhaps Kevin could confirm this? :-)
Well, the core thermal management is open sourced as it's part of the
platform plugins... What is not are the low level drivers that interface
to the various HW chips (mostly i2c sensors etc...), most of them having
available specs, it makes little sense imho....
SMU is important for more than just thermal management anyway (and probably
doesn't contain any thermal management policy per-se, just the ability to
send messages to the fan control unit I suppose). However, it's also the
required interface to machine restart/shutdown, real rime clock, sleep mode,
etc...
Ben.
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