On Wed, 2005-01-26 at 11:02 +0100, Mikael Pettersson wrote: > Benjamin Herrenschmidt writes: > > On Tue, 2005-01-25 at 09:56 +0100, Mikael Pettersson wrote: > > > > > On the eMac: > > > /proc/sys/kernel/powersave-nap exists and contains "0". > > > /proc/device-tree/cpus/PowerPC,G4/flush-on-lock exists as an empty file. > > > > Ok, that is weird... so for some reason, Apple decided not to allow the > > eMac to do NAP mode, and thus to power manage the CPU when idle... > > I assumed it was due to the UniNorth issue that pmac_feature.c mentions.
Not clear. I would expect the eMac to run with a fairly recent revision of UniNorth with no issue, and since it's not an SMP machine there should be no problem... On the other hand, I also suspect that the whole NAP thing does have a small impact on performances, so that may be the reason they chose not to do it on this HW... Ben. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
