From owner-freebsd-stable Sat Aug 18 14:52: 6 2001 Delivered-To: freebsd-stable@freebsd.org Received: from mass.dis.org (mass.dis.org [216.240.45.41]) by hub.freebsd.org (Postfix) with ESMTP id 9699537B401 for ; Sat, 18 Aug 2001 14:52:03 -0700 (PDT) (envelope-from msmith@mass.dis.org) Received: from mass.dis.org (localhost [127.0.0.1]) by mass.dis.org (8.11.4/8.11.3) with ESMTP id f7ILp0S01985; Sat, 18 Aug 2001 14:51:00 -0700 (PDT) (envelope-from msmith@mass.dis.org) Message-Id: <200108182151.f7ILp0S01985@mass.dis.org> X-Mailer: exmh version 2.1.1 10/15/1999 To: Kris Kennaway Cc: Kenneth W Cochran , freebsd-stable@FreeBSD.ORG Subject: Re: New kernel option CPU_ENABLE_SSE In-reply-to: Your message of "Thu, 16 Aug 2001 14:28:44 PDT." <20010816142844.C79242@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 18 Aug 2001 14:51:00 -0700 From: Mike Smith Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > > --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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message