From owner-freebsd-acpi@FreeBSD.ORG Mon Oct 30 21:13:35 2006 Return-Path: X-Original-To: freebsd-acpi@freebsd.org 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 1673516A523 for ; Mon, 30 Oct 2006 21:13:35 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (66-23-211-162.clients.speedfactory.net [66.23.211.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id F08EA43D49 for ; Mon, 30 Oct 2006 21:13:33 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from localhost.corp.yahoo.com (john@localhost [127.0.0.1]) (authenticated bits=0) by server.baldwin.cx (8.13.6/8.13.6) with ESMTP id k9ULDEUb082234; Mon, 30 Oct 2006 16:13:31 -0500 (EST) (envelope-from jhb@freebsd.org) From: John Baldwin To: John Utz Date: Mon, 30 Oct 2006 15:19:24 -0500 User-Agent: KMail/1.9.1 References: <4541254E.5020108@root.org> <28D1F57D-B976-4EC3-927A-40F09C4465E6@utzweb.net> In-Reply-To: <28D1F57D-B976-4EC3-927A-40F09C4465E6@utzweb.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200610301519.24918.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-2.0.2 (server.baldwin.cx [127.0.0.1]); Mon, 30 Oct 2006 16:13:31 -0500 (EST) X-Virus-Scanned: ClamAV 0.88.3/2132/Mon Oct 30 14:42:34 2006 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-4.4 required=4.2 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on server.baldwin.cx Cc: freebsd-acpi@freebsd.org Subject: Re: Serious Progess Re: smbios.ko probes successfully if i disable acpi sysresource, fails if i do not X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Oct 2006 21:13:35 -0000 On Thursday 26 October 2006 22:19, John Utz wrote: > > On Oct 26, 2006, at 2:14 PM, Nate Lawson wrote: > > > John Baldwin wrote: > >> On Thursday 26 October 2006 12:28, Nate Lawson wrote: > >>> John Utz wrote: > >>>> Hello; > >>>> > >>>> as you may know i am attempting to use fbsd's smbios > >>>> functionality to support porting the linux i8k-utils dell smbios > >>>> keyboard and fan stuff. > >>>> > >>>> i just discovered today that disabling sysresource allows the > >>>> module to attach. > >>>> > >>>> so, here's the part that i'd love some help with understanding: > >>>> > >>>> 1. with acpi enabled, is smbios.ko supposed to be asking acpi > >>>> for a resource handle or something? > >>>> > >>>> 2. is acpi_resource.c behaving in error? should it not be > >>>> consuming the smbios startaddr? > >>>> > >>>> note that startaddr for smbios is 0xf000, bios.c looks for > >>>> pnpbios and pcibios starting at 0xe000 and completely ignores > >>>> smbios. > >>>> > >>>> it seems to me that either statement 1 or 2 is correct, but not > >>>> both. > >>>> > >>>> of course, i could be totally wrong, can anybody enlighten me? > >>> ACPI reserves sysresource objects for downstream devices. Then, > >>> those devices get the resources they request via ACPI. Anyway, > >>> all this should be transparent to the downstream devices. They > >>> shouldn't care if they're getting their resources from nexus > >>> (top, pseudo-device) or acpi. > >>> > >>> Are you using bus_alloc_resource() or the equivalent to get the > >>> resources in your driver? > > this was the us$64K question, thankyou for answering it! > > man bus_alloc_resource sez 'dont use this any earlier than attach, > and smbios.c (and several other things) are using it in probe(). > > once i yanked that out of probe, then it cohabitates with acpi They should likely use pmap_mapbios() (pmap_mapdev() on 6.x) to locate and map tables instead. -- John Baldwin