From owner-freebsd-hackers Wed Feb 5 5:22:43 2003 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7949837B401; Wed, 5 Feb 2003 05:22:41 -0800 (PST) Received: from haldjas.folklore.ee (Haldjas.folklore.ee [193.40.6.121]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7EC3E43F85; Wed, 5 Feb 2003 05:22:40 -0800 (PST) (envelope-from narvi@haldjas.folklore.ee) Received: from haldjas.folklore.ee (localhost [127.0.0.1]) by haldjas.folklore.ee (8.12.3/8.11.3) with ESMTP id h15DHaOs006113; Wed, 5 Feb 2003 15:17:36 +0200 (EET) (envelope-from narvi@haldjas.folklore.ee) Received: from localhost (narvi@localhost) by haldjas.folklore.ee (8.12.3/8.12.3/Submit) with ESMTP id h15DHYZK006110; Wed, 5 Feb 2003 15:17:35 +0200 (EET) Date: Wed, 5 Feb 2003 15:17:34 +0200 (EET) From: Narvi To: Benno Rice Cc: "Kurt J. Lidl" , Matthew Dillon , Subject: Re: Lower power SMP boxes? In-Reply-To: <1044401240.663.2.camel@localhost> Message-ID: <20030205150908.G43637-100000@haldjas.folklore.ee> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 5 Feb 2003, Benno Rice wrote: > On Wed, 2003-02-05 at 07:25, Narvi wrote: > > On Sat, 1 Feb 2003, Kurt J. Lidl wrote: > > [snip] > > > > How else are you going to do the physical interrupt steering? > > > Unless they have gone through the effort of implementing a whole > > > new and different steering mechanism -- which would fly in the face > > > of having off-the-shelf OS support from the people in Redmond, at > > > the very least. > > > > > > > At least at some point there was a thing called OpenPIC which the then big > > two alternative x86 processor vendors AMD and Cyrix promised to support. > > In practice I believe it ever only got used on one or two PPC boards. > > One or two like every new world Macintosh. =) > > In fact quite a lot of PowerPC boards use OpenPIC as it's specified in > the CHRP spec, which IBM and Apple follow for the most part. I know > that Motorola's MPC10x host-pci bridge chipsets also have an > OpenPIC-compatible PIC in them. I also wouldn't be surprised if the Mai > Logic chipset used on the Teron CX motherboards has one as well. Ah, well, I didn't know that it migrated to the PPC mainstream - these are very much 95/96/97 memories. So by virtue of ppc mp support freebsd would also get nearer to x86 openpic mp support (should any such ever show up)? > > -- > Benno Rice > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message