Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752858AbbH1Qzf (ORCPT ); Fri, 28 Aug 2015 12:55:35 -0400 Received: from www.linutronix.de ([62.245.132.108]:35749 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751739AbbH1Qze (ORCPT ); Fri, 28 Aug 2015 12:55:34 -0400 Date: Fri, 28 Aug 2015 18:54:57 +0200 (CEST) From: Thomas Gleixner To: Keith Busch cc: x86@kernel.org, LKML , Bryan Veal , Dan Williams , linux-pci@vger.kernel.org, Jiang Liu Subject: Re: [RFC PATCH 1/2] x86: PCI bus specific MSI operations In-Reply-To: <1440715146-16578-2-git-send-email-keith.busch@intel.com> Message-ID: References: <1440715146-16578-1-git-send-email-keith.busch@intel.com> <1440715146-16578-2-git-send-email-keith.busch@intel.com> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 745 Lines: 19 On Thu, 27 Aug 2015, Keith Busch wrote: > This patch adds struct x86_msi_ops to x86's PCI sysdata. This gives a > host bridge driver the option to provide alternate MSI Data Register > and MSI-X Table Entry programming for devices in PCI domains that do > not subscribe to usual "IOAPIC" format. I'm not too fond about more ad hoc indirection and special casing. We should be able to handle this with hierarchical irq domains. Jiang might have an idea how to do that for your case. Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/