From: Tony Breeds <tony@bakeyournoodle.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com>,
LinuxPPC-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH 2/3] powerpc/44x: don't use tlbivax on AMP systems
Date: Wed, 13 Jul 2011 15:57:03 +1000 [thread overview]
Message-ID: <20110713055703.GI20597@ozlabs.org> (raw)
In-Reply-To: <D1C71884-DD31-4F3C-8BF5-C6DB3BF4EC8F@kernel.crashing.org>
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
next prev parent reply other threads:[~2011-07-13 5:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-05 4:36 [PATCH 1/3] powerpc/47x: allow kernel to be loaded in higher physical memory Tony Breeds
2011-07-05 4:38 ` [PATCH 2/3] powerpc/44x: don't use tlbivax on AMP systems Tony Breeds
2011-07-13 5:48 ` Kumar Gala
2011-07-13 5:57 ` Tony Breeds [this message]
2011-07-05 4:38 ` [PATCH 3/3] powerpc/44x: boot wrapper: allow kernel to load into non-zero address Tony Breeds
2011-07-05 6:18 ` [PATCH 1/3] powerpc/47x: allow kernel to be loaded in higher physical memory Suzuki Poulose
2011-07-12 13:27 ` Josh Boyer
2011-07-12 20:22 ` Suzuki Poulose
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