From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Slaby Subject: Re: [PATCH 1/1] ACPI: pci_irq, add PRT_ quirk for IBM Bartolo Date: Mon, 19 Jul 2010 18:29:33 +0200 Message-ID: <4C447D6D.5060801@suse.cz> References: <1277673679-21458-1-git-send-email-jslaby@suse.cz> <4C27E965.80508@gmail.com> <4C283D84.6080504@suse.cz> <20100628171410.GA27367@srcf.ucam.org> <4C290245.2040001@suse.cz> <20100628204820.GA32503@srcf.ucam.org> <4C2A3E27.4060407@suse.cz> <4C2B0C73.9050200@suse.cz> <4C3278C8.60503@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4C3278C8.60503@gmail.com> Sender: linux-pci-owner@vger.kernel.org To: Robert Hancock Cc: Matthew Garrett , lenb@kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Jesse Barnes List-Id: linux-acpi@vger.kernel.org On 07/06/2010 02:28 AM, Robert Hancock wrote: > On 06/30/2010 03:20 AM, Jiri Slaby wrote: >> On 06/30/2010 01:23 AM, Robert Hancock wrote: >>> What kind of slot is it, and what kind of device was being used, >>> something designed for this machine or just some random card? >> >> It's a netmos 9835 serial card with 2 ports. PCI, there is no PCIe in >> the machine as far as I can see. >> >>> Can they >>> tell what IRQ the device is reportedly using in Windows and if it >>> matches what Linux reports? >> >> I can ask them. What I know is that with acpi=noirq (or with the quirk) >> the IRQ number is 10, with acpi without the quirk, it's 11: >> >> PCI: setting IRQ 2 as level-triggered >> serial 0000:00:09.0: found PCI INT A -> IRQ 2 >> 0000:00:09.0: ttyS4 at I/O 0x1898 (irq = 10) is a 16550A >> 0000:00:09.0: ttyS5 at I/O 0x1890 (irq = 10) is a 16550A >> >> ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11 >> PCI: setting IRQ 11 as level-triggered >> serial 0000:00:09.0: PCI INT A -> Link[LNKB] -> GSI 11 (level, low) -> >> IRQ 11 >> 0000:00:09.0: ttyS4 at I/O 0x1898 (irq = 11) is a 16550A >> 0000:00:09.0: ttyS5 at I/O 0x1890 (irq = 11) is a 16550A >> >> I still no point in comparing this to Windows' setup. We can't find out >> whether it is quirked or better (without some bug) handled there. > > Well, you can see if Windows shows IRQ 10 or 11 for that device.. But how can I find out which link it is routed to in Windows? Without that information the number is meaningless, no? thanks, -- js suse labs