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Subject: Re: [PATCH 3/3] powerpc: Load Monitor Register Tests
From: Michael Ellerman <mpe@ellerman.id.au>
To: Michael Neuling <mikey@neuling.org>, Jack Miller <jack@codezen.org>,
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Date: Wed, 04 May 2016 21:31:04 +1000
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On Wed, 2016-05-04 at 20:43 +1000, Michael Neuling wrote:
> On Mon, 2016-04-18 at 16:08 -0500, Jack Miller wrote:

> > +int ebb_lmr(void)
> > +{
> > +	int i;
> > +
> > +	SKIP_IF(!ebb_is_supported());
> 
> We skip this test currently as EBB is not enabled on POWER9.
> 
> On POWER8 we enable EBB in the PMU code. Should we do this elsewhere for
> POWER9 since EBB doesn't directly require the PMU?

Probably. But we will need to check that if the PMU code is *not* enabled we
still do the context switching of EBB regs correctly. We probably do, but I
don't now for sure.

cheers