Re: [PATCH] powerpc/xive: Fix offset for store EOI MMIOs

2017-06-14 Thread Benjamin Herrenschmidt
On Wed, 2017-06-14 at 14:44 +1000, Michael Ellerman wrote: > Benjamin Herrenschmidt writes: > > > Architecturally we should apply a 0x400 offset for these. Not doing > > it will break future HW implementations. > > Can you elaborate a bit? > > You're changing a write to 0x0 to be a write to 0x4

Re: [PATCH] powerpc/xive: Fix offset for store EOI MMIOs

2017-06-13 Thread Michael Ellerman
Benjamin Herrenschmidt writes: > Architecturally we should apply a 0x400 offset for these. Not doing > it will break future HW implementations. Can you elaborate a bit? You're changing a write to 0x0 to be a write to 0x400, which at face value appears like it breaks something, or is already bro