[PATCH 1/5] powerpc/pseries: Drop support for MPIC in pseries

[Michael Ellerman]

On Tue, 2016-05-31 at 12:48 +1000, Rashmica wrote:
> On 31/05/16 11:34, Rashmica wrote:
> > On 30/05/16 17:32, Benjamin Herrenschmidt wrote:
> > > On Mon, 2016-05-30 at 16:18 +1000, Rashmica Gupta wrote:
> > > > MPIC was only used by Power3 which is now unsupported, so drop support
> > > > for MPIC. XICS is now the only supported interrupt controller for
> > > > pSeries so make the XICS functions generic.
> > > The second half I'm not sure ... XIVE is around the corner...
> > > 
> > I thought XIVE was replacing XICS? And so then we can just simply 
> > replace all the specific XICS code such as xics_init() and 
> > xics_smp_probe() with the relevant XIVE functions?
> > 
> > By "make the XICS functions generic" I meant that if there is only one 
> > interrupt controller for pseries then we don't need to have both 
> > static void __init pseries_xics_init_IRQ(void) and static void __init 
> > pSeries_init_IRQ(void), etc.
> 
> Oliver just informed me that it is only replacing XICS for p9. Should I 
> leave this for the person adding in the XIVE code?

I haven't heard of this "XIVE" thing but anyway ..

I would hope we can come up with a better abstraction than this for XICS/XIVE,
so I'm inclined to merge this anyway. Worst case we end up putting some of it
back.

cheers