From owner-cvs-src@FreeBSD.ORG Wed Oct 6 18:58:59 2004 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 38E1316A4CF for ; Wed, 6 Oct 2004 18:58:59 +0000 (GMT) Received: from mail4.speakeasy.net (mail4.speakeasy.net [216.254.0.204]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0D9D543D48 for ; Wed, 6 Oct 2004 18:58:59 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 5038 invoked from network); 6 Oct 2004 18:58:58 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 6 Oct 2004 18:58:58 -0000 Received: from [10.50.40.210] (gw1.twc.weather.com [216.133.140.1]) (authenticated bits=0) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id i96Iwsmk074356; Wed, 6 Oct 2004 14:58:55 -0400 (EDT) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: Warner Losh Date: Wed, 6 Oct 2004 10:54:42 -0400 User-Agent: KMail/1.6.2 References: <200410060722.i967MwsJ014694@repoman.freebsd.org> In-Reply-To: <200410060722.i967MwsJ014694@repoman.freebsd.org> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200410061054.42956.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/pci pci_bus.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Oct 2004 18:58:59 -0000 On Wednesday 06 October 2004 03:22 am, Warner Losh wrote: > imp 2004-10-06 07:22:58 UTC > > FreeBSD src repository > > Modified files: > sys/i386/pci pci_bus.c > Log: > For legacy PCI bridges, limit memory allocation to the top 32MB of > RAM. Many older, legacy bridges only allow allocation from this > range. This only appies to devices who don't have their memory > assigned by the BIOS (since we allocate the ranges so assigned > exactly), so should have minimal impact. > > Hoewver, for CardBus bridges (cbb), they rarely get the resources > allocated by the BIOS, and this patch helps them greatly. Typically > the 'bad Vcc' messages are caused by this problem. We really should be looking at the SMAP to find out what the real limits of PCI space are I think since I think the SMAP includes an entry for PCI memory mapped I/O. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org