Date: Wed, 5 Feb 2003 15:17:34 +0200 (EET) From: Narvi <narvi@haldjas.folklore.ee> To: Benno Rice <benno@FreeBSD.ORG> Cc: "Kurt J. Lidl" <lidl@pix.net>, Matthew Dillon <dillon@apollo.backplane.com>, <hackers@FreeBSD.ORG> Subject: Re: Lower power SMP boxes? Message-ID: <20030205150908.G43637-100000@haldjas.folklore.ee> In-Reply-To: <1044401240.663.2.camel@localhost>
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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 <benno@FreeBSD.org> > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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