Re: [v3 PATCH 2/4] powernv:smp: Add busy-wait loop as fall back for CPU-Hotplug

2017-03-30 Thread Gautham R Shenoy
On Mon, Mar 27, 2017 at 10:43:44PM +1100, Michael Ellerman wrote: > "Gautham R. Shenoy" writes: > > > diff --git a/arch/powerpc/platforms/powernv/idle.c > > b/arch/powerpc/platforms/powernv/idle.c > > index 419edff..f335e0f 100644 > > ---

Re: [v3 PATCH 2/4] powernv:smp: Add busy-wait loop as fall back for CPU-Hotplug

2017-03-27 Thread Michael Ellerman
"Gautham R. Shenoy" writes: > diff --git a/arch/powerpc/platforms/powernv/idle.c > b/arch/powerpc/platforms/powernv/idle.c > index 419edff..f335e0f 100644 > --- a/arch/powerpc/platforms/powernv/idle.c > +++ b/arch/powerpc/platforms/powernv/idle.c > @@ -283,8 +283,16 @@

[v3 PATCH 2/4] powernv:smp: Add busy-wait loop as fall back for CPU-Hotplug

2017-03-22 Thread Gautham R. Shenoy
From: "Gautham R. Shenoy" Currently, the powernv cpu-offline function assumes that platform idle states such as stop on POWER9, winkle/sleep/nap on POWER8 are always available. On POWER8, it picks nap as the default state if other deep idle states like sleep/winkle are