From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Renninger Subject: Re: [PATCH] Correct irq in ACPI PCI routing table for IBM 3850 M2 and x3950 M2 Date: Mon, 20 Feb 2012 17:52:11 +0100 Message-ID: <201202201752.11597.trenn@suse.de> References: <1329756304-52877-1-git-send-email-trenn@suse.de> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-6" Content-Transfer-Encoding: 7bit Return-path: Received: from cantor2.suse.de ([195.135.220.15]:48843 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753119Ab2BTQwN (ORCPT ); Mon, 20 Feb 2012 11:52:13 -0500 In-Reply-To: <1329756304-52877-1-git-send-email-trenn@suse.de> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: lenb@kernel.org Cc: linux-acpi@vger.kernel.org On Monday, February 20, 2012 05:45:04 PM Thomas Renninger wrote: > This is a quirk for a broken BIOS. Afaik IBM will release a BIOS update for this. I still send this patch out for documentation. This one might still be worth applying because: - Users with an old BIOS will not run into regressions with latest kernels using radeon modesetting (by default). - There existed a quirk interface already for one _PRT variant. This patch extends this interface to also be able to override bad BIOS irqs when the other method, hard wired IRQs, compare with ACPI spec: 6.2.11 _PRT (PCI Routing Table): In the second model, the PCI interrupts are hardwired to specific interrupt inputs... Thomas