[PATCH v2 2/2] powerpc/64s: idle skip POWER9 DD1 and DD2.0 specific workarounds on DD2.1

[Nicholas Piggin]

On Fri, 03 Nov 2017 12:13:19 +1100
Michael Neuling <mikey at neuling.org> wrote:

> On Thu, 2017-11-02 at 12:55 +1100, Nicholas Piggin wrote:
> > DD2.1 does not have to flush the ERAT after a state-loss idle. It also
> > does not have to save and restore MMCR0 (although it does have to save
> > restore in deep idle states, like other PMU registers).  
> 
> Minor nit, can we do this as two separate commits in case we discover one is
> broken.

Good idea, resent.

Thanks,
Nick