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Date:      Sat, 18 Aug 2001 14:51:00 -0700
From:      Mike Smith <msmith@freebsd.org>
To:        Kris Kennaway <kris@obsecurity.org>
Cc:        Kenneth W Cochran <kwc@world.std.com>, freebsd-stable@FreeBSD.ORG
Subject:   Re: New kernel option CPU_ENABLE_SSE 
Message-ID:  <200108182151.f7ILp0S01985@mass.dis.org>
In-Reply-To: Your message of "Thu, 16 Aug 2001 14:28:44 PDT." <20010816142844.C79242@xor.obsecurity.org> 

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> 
> --R+My9LyyhiUvIEro
> Content-Type: text/plain; charset=us-ascii
> Content-Disposition: inline
> 
> On Thu, Aug 16, 2001 at 04:20:35PM -0400, Kenneth W Cochran wrote:
> 
> > Assuming CPU_ENABLE_SSE is a Good Thing, why not make it
> > "default" with the "cpu I686_CPU" kernel config directive
> > (similar to F00F_HACK auto-include with I586_CPU)?
> 
> Because not all i686'es support SSE.

So detect it automatically based on the CPU feature bits.

Needing a kernel compile option for this is unforgivably lame.  If you 
want to be able to disable it, use a tunable.

-- 
... every activity meets with opposition, everyone who acts has his
rivals and unfortunately opponents also.  But not because people want
to be opponents, rather because the tasks and relationships force
people to take different points of view.  [Dr. Fritz Todt]
           V I C T O R Y   N O T   V E N G E A N C E



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