From owner-freebsd-acpi@FreeBSD.ORG Tue Nov 16 19:07:41 2004 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A205016A4CE for ; Tue, 16 Nov 2004 19:07:41 +0000 (GMT) Received: from mail2.speakeasy.net (mail2.speakeasy.net [216.254.0.202]) by mx1.FreeBSD.org (Postfix) with ESMTP id 49C7C43D54 for ; Tue, 16 Nov 2004 19:07:41 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 27140 invoked from network); 16 Nov 2004 19:07:41 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 16 Nov 2004 19:07:40 -0000 Received: from [10.50.41.235] (gw1.twc.weather.com [216.133.140.1]) (authenticated bits=0) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id iAGJ7XRo083780; Tue, 16 Nov 2004 14:07:37 -0500 (EST) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: freebsd-acpi@FreeBSD.org Date: Tue, 16 Nov 2004 13:39:13 -0500 User-Agent: KMail/1.6.2 References: <200411111737.00537.jhb@FreeBSD.org> In-Reply-To: <200411111737.00537.jhb@FreeBSD.org> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200411161339.13818.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx cc: acpi@FreeBSD.org cc: gallatin@FreeBSD.org cc: scottl@FreeBSD.org Subject: Re: New ACPI PCI Link Routing code X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Nov 2004 19:07:41 -0000 On Thursday 11 November 2004 05:37 pm, John Baldwin wrote: > I've done some work on the ACPI PCI link code to make it a bit more like > $PIR in that it is link centric and uses actual new-bus devices for each > device link. One benefit of this is that unused links will be disabled now > which might help with interrupt aliasing problems on machines using APICs. > Also, instead of routing IRQs for links via PCI device numbers using > tunables, they are now routed via the link name ala $PIR. Thus, one uses > 'hw.pci.link.LNKA.irq=X' to route LNKA to IRQ X. Also, when choosing a > virgin interrupt, we no longer try to guess at which IRQs might be used by > ISA devices. Instead, we only use known-good IRQs including IRQs that the > BIOS has already used and the SCI if the link is being routed via ISA IRQs. > The patch is at http://www.FreeBSD.org/~jhb/patches/acpi_pci_link.patch > Please test and let me know if there are any problems, thanks. I've updated this to the latest current and verified that it compiles ok (since I had at least one report that it didn't patch cleanly and/or compile). I plan to commit this in a couple of days unless I hear some sort of negative feedback. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org