On Tue, Nov 17, 2009 at 11:39:04PM +1100, Michael Ellerman wrote: > On Tue, 2009-11-17 at 12:07 +0000, Mel Gorman wrote: > > KConfig doesn't require CONFIG_XICS to be set with CONFIG_PSERIES but if > > it's not set, there are numerous small build errors. This is a small series > > of patches to allow CONFIG_XICS to be unset in the config. > > > > XICS appears to be some sort of interrupt controller but I'm not sure how > > common it is on systems that require CONFIG_PSERIES. If CONFIG_PSERIES > > universally requires CONFIG_XICS, the better path might be to force it to > > be set. > > It is indeed 'some sort of interrupt controller' :) > > All the virtualised PSERIES systems have, or appear to have, a XICS. So > it's pretty common. > > I think the only time you see an MPIC is on older machines, and even > then maybe only if you're running bare metal. > > So it is pretty much required for a PSERIES kernel, but perhaps there > are cases where the BML guys want to be able to turn it off. >
Do you want to take ownership of the series as I'm a bit unclear on how and when XICS should be used? If not, I don't mind fixing the series up as you suggested but I wouldn't be in the best position to determine if the final result is sensible or not. -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
