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From: Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [Cbe-oss-dev] [patch 3/3] cell: prevent alignment interrupt on
	local store
Date: Thu, 12 Apr 2007 21:52:22 +0200
To: Arnd Bergmann <arnd@arndb.de>
Cc: linuxppc-dev@ozlabs.org, Olaf Hering <olaf@aepfle.de>,
	cbe-oss-dev@ozlabs.org
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> Building with -mcpu=cell won't work on 970 or g4, because that enables
> a few extra instructions that were not present in the older cpus.
>
> If you know you want to build with altivec (i.e. not run on power4 or
> older), then '-m32 -mcpu=7450 -mtune=cell' or '-m64 -mcpu=970 
> -mtune=cell'
> would be a reasonable thing to try.

-mcpu=powerpc64 -mtune=cell


Segher