On Fri, 2008-11-21 at 15:40 +0100, Arnd Bergmann wrote: > On Friday 21 November 2008, Benjamin Herrenschmidt wrote: > > Oh just that for powermac for example, I know I'm resetting the thing, > > so can't rely on init values, and on some BML embedded boxes too, while > > on things like cell I don't off hand know what the right CPU number is > > to hit the right C3PO interrupt, so I'm better off reading what SLOF > > did :-) > > The current code will always use destination 0 for any MPIC, because > mpic_init is run befew smp_init and it currently uses the local CPU. > > If an SMP powermac requires a specific destination setting in the > secondary MPIC, either the current mpic_init code is broken there > in the same way as on cell, or more broken if it requires something > other than destination 0. > > > But if you think on Cell we can just hard wire in the platform code, > > then I'm ok. > > On cell, I know that destination 0 is always correct because of the wiring > inside of Axon. Ok so -all- existing instances only care about destination 0, we may just hard code that in MPIC for now :-) Cheers, Ben.
