From owner-freebsd-smp Sat Sep 19 07:56:27 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id HAA10169 for freebsd-smp-outgoing; Sat, 19 Sep 1998 07:56:27 -0700 (PDT) (envelope-from owner-freebsd-smp@FreeBSD.ORG) Received: from Ilsa.StevesCafe.com (Ilsa.StevesCafe.com [205.168.119.129]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id HAA10159; Sat, 19 Sep 1998 07:56:20 -0700 (PDT) (envelope-from fbsd@Ilsa.StevesCafe.com) Received: from Ilsa.StevesCafe.com (localhost.StevesCafe.com [127.0.0.1]) by Ilsa.StevesCafe.com (8.8.8/8.8.5) with ESMTP id IAA18435; Sat, 19 Sep 1998 08:55:44 -0600 (MDT) Message-Id: <199809191455.IAA18435@Ilsa.StevesCafe.com> X-Mailer: exmh version 2.0.2 2/24/98 From: Steve Passe To: vanmaren@fast.cs.utah.edu (Kevin Van Maren) cc: mike@smith.net.au, se@FreeBSD.ORG, smp@FreeBSD.ORG Subject: Re: Multiple PCI busses and the 450NX chipset In-reply-to: Your message of "Fri, 18 Sep 1998 18:49:34 MDT." <199809190049.SAA03431@fast.cs.utah.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 19 Sep 1998 08:55:44 -0600 Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hi, > It is finding the 82454NX PCI Expander Bridges. Are there actually > any PCI cards in either of the other two busses (32-bit and 64-bit > PCI bus)? > > I have seen this before, with the AMI BIOS, where the BIOS does not > configure PCI-PCI bridges if there is nothing on the other side > of the PCI bridge (or nothing but a PCI-PCI bridge, with nothing > on the other side of that). This (empty PCI busses) would also > make sense, given that there are no interrupt mappings in the MP > table for the other PCI busses. > > Can you plug in a couple extra cards (at least one in each of the > other two busses) and try it again? If it still doesn't work, > I'll be glad to look at it, but my guess is that the multiple > host-PCI bridges are implemented similarly to the 450GX chipset, > and AGP in the 440BX, so it will "just work" once the BIOS > configures the bridges. FYI, the 450NX chipset docs: http://developer.intel.com/design/pcisets/datashts/243771.htm -- Steve Passe | powered by smp@csn.net | Symmetric MultiProcessor FreeBSD To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message