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Date: Fri, 28 Jun 2013 00:16:31 +1000
From: Michael Ellerman <michael@ellerman.id.au>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Subject: Re: [PATCH 3/4] powerpc: Rename and flesh out the facility
 unavailable exception handler
Message-ID: <20130627141631.GA13867@concordia>
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On Thu, Jun 27, 2013 at 02:05:39PM +1000, Stephen Rothwell wrote:
> Hi Michael,
> 
> On Tue, 25 Jun 2013 17:47:56 +1000 Michael Ellerman <michael@ellerman.id.au> wrote:
> >
> > -void tm_unavailable_exception(struct pt_regs *regs)
> > +void facility_unavailable_exception(struct pt_regs *regs)
> >  {
> > +	static char *facility_strings[] = {
> > +		"FPU",
> > +		"VMX/VSX",
> > +		"DSCR",
> > +		"PMU SPRs",
> > +		"BHRB",
> > +		"TM",
> > +		"AT",
> > +		"EBB",
> > +		"TAR",
> > +	};
> 
> Are the indexes into this array defined somewhere?  If not, can we do
> that.  Then, can we use explicit indexed initialisers for this array?

I'm not sure I follow.

The mapping is defined by the definition of the "Interruption Cause"
field of the FSCR, section 6.2.10 of PowerISA v2.07.

cheers