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Re: [PATCH 1/4] MIPS: Add base architecture support for RI and XI.

To: David Daney <ddaney.cavm@gmail.com>
Subject: Re: [PATCH 1/4] MIPS: Add base architecture support for RI and XI.
From: Kevin Cernekee <cernekee@gmail.com>
Date: Wed, 5 Sep 2012 16:30:24 -0700
Cc: "Steven J. Hill" <sjhill@mips.com>, ralf@linux-mips.org, linux-mips@linux-mips.org
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On Wed, Sep 5, 2012 at 2:51 PM, David Daney <ddaney.cavm@gmail.com> wrote:
> Nobody in their right mind would implement only one of RI or XI.  So
> splitting this feature into two parts just adds complication with no
> benefit.  Unless you have evidence that there is actual silicon that only
> implements one of the two, there is no reason to split this, and to way to
> test it.
>
> You can just keep kernel_uses_smartmips_rixi, and the rest of the patch set
> is mostly unneeded.

Recent BMIPS4380/BMIPS5000 cores support the XI bit, and ignore the RI bit.

AFAICT it is safe to just use kernel_uses_smartmips_rixi=1 on these processors.

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