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Date: Wed, 13 Jul 2011 15:57:03 +1000
From: Tony Breeds <tony@bakeyournoodle.com>
To: Kumar Gala <galak@kernel.crashing.org>
Subject: Re: [PATCH 2/3] powerpc/44x: don't use tlbivax on AMP systems
Message-ID: <20110713055703.GI20597@ozlabs.org>
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Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com>,
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On Wed, Jul 13, 2011 at 12:48:21AM -0500, Kumar Gala wrote:
> 
> On Jul 4, 2011, at 11:38 PM, Tony Breeds wrote:
> 
> > +#ifdef CONFIG_PPC_47x
> > +void __init early_init_mmu_47x(void)
> > +{
> > +#ifdef CONFIG_SMP
> > +	unsigned long root = of_get_flat_dt_root();
> > +	if (of_get_flat_dt_prop(root, "cooperative-partition", NULL))
> > +		mmu_clear_feature(MMU_FTR_USE_TLBIVAX_BCAST);
> > +#endif /* CONFIG_SMP */
> > +}
> > +#endif /* CONFIG_PPC_47x */
> > +
> 
> Is this device tree prop spec'd anywhere?

I don't think this has been formally written up, but this was discussed in Feb.
this year http://patchwork.ozlabs.org/patch/81355/

Yours Tony