From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karol Kozimor Subject: Re: lost thermal zones on 20040715 nc6000 Date: Tue, 24 Aug 2004 23:51:18 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20040824215118.GA13853@hell.org.pl> References: <37F890616C995246BE76B3E6B2DBE05501A8B206@orsmsx403.amr.corp.intel.com> <1093382665.5299.16.camel@tdi> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Return-path: Content-Disposition: inline In-Reply-To: <1093382665.5299.16.camel@tdi> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Alex Williamson Cc: "Moore, Robert" , acpi-devel List-Id: linux-acpi@vger.kernel.org Thus wrote Alex Williamson: > > I've nearly gotten to the bottom of this problem. It's not an > interpreter bug, nor is it a BIOS bug. The address we were trying to > read in AML is a SMBus controller address. This address sits on the > hidden SMBus function in the Intel chipset. Unfortunately, the PCI > quirks routine un-hides the devices. So far this is all the same as the > way it behaved prior to the 20040715 code drop. > > The new piece is the motherboard driver. Now this driver comes in an > claims the I/O port region that the SMBus controller is using. We've > un-hidden the PCI function, so PCI wants that resource range. It can't > get it so it moves the SMBus BAR to a different address. The AML is now > hosed cause it's hard-coded to use the address it programmed in (why > shouldn't it, the device is hidden). Why are we un-hiding the SMBus > function? The AML sets up an OpRegion for the address space it uses, so > should have exclusive access to that range. Suggestions? Thanks, Ouch, see bug #3191. Best regards, -- Karol 'sziwan' Kozimor sziwan-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285