From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Mundt <lethal@linux-sh.org>
Date: Fri, 27 Feb 2009 07:22:12 +0000
Subject: Re: [PATCH 04/04] sh: prefetch early exception data on sh3/sh4/sh4a
Message-Id: <20090227072211.GE28802@linux-sh.org>
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To: linux-sh@vger.kernel.org

On Mon, Feb 23, 2009 at 04:19:31PM +0900, Magnus Damm wrote:
> From: Magnus Damm <damm@igel.co.jp>
> 
> Prefetch early exception data. There is unused space in our
> exception handler cache line anyway, so this is almost free.
> 
Hmm, this won't work, 'pref' doesn't exist on SH-3. The binutils opcode
table defines it as arch_sh2a_nofpu_or_sh4_nommu_nofpu_up, which excludes
SH-3. mova is ok, though.

This does show how often SH-3 gets tested though, as asm/processor_32.h
happily defines prefetch() for SH-3 when it shouldn't. I'll tidy this up
and drop in a PREF() macro.