Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754677Ab2HUIka (ORCPT ); Tue, 21 Aug 2012 04:40:30 -0400 Received: from tx2ehsobe002.messaging.microsoft.com ([65.55.88.12]:42805 "EHLO tx2outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753165Ab2HUIkT (ORCPT ); Tue, 21 Aug 2012 04:40:19 -0400 X-Forefront-Antispam-Report: CIP:163.181.249.109;KIP:(null);UIP:(null);IPV:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-SpamScore: -3 X-BigFish: VPS-3(zz98dI1432Izz1202hzz15d4Iz2dh668h839h944hd25he5bhf0ah11b5h) X-WSS-ID: 0M93K2V-02-7WG-02 X-M-MSG: Date: Tue, 21 Aug 2012 10:40:07 +0200 From: Joerg Roedel To: Konrad Rzeszutek Wilk CC: , , , Suresh Siddha , Yinghai Lu Subject: Re: [PATCH 17/19] x86, msi: Introduce x86_msi.compose_msi_msg call-back Message-ID: <20120821084007.GL2582@amd.com> References: <1345470965-24410-1-git-send-email-joerg.roedel@amd.com> <1345470965-24410-18-git-send-email-joerg.roedel@amd.com> <20120820140843.GA7732@phenom.dumpdata.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20120820140843.GA7732@phenom.dumpdata.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 929 Lines: 26 On Mon, Aug 20, 2012 at 10:08:44AM -0400, Konrad Rzeszutek Wilk wrote: > On Mon, Aug 20, 2012 at 03:56:03PM +0200, Joerg Roedel wrote: > > This call-back points to the right function for initializing > > the msi_msg structure. > > What is the 'hpet_id' purpose in this? The VT-d implementation uses it. This function is used to create the MSI message for PCI devices and the HPET. When it is called for the HPET the pdev parameter is NULL and hpet_id is valid. Joerg -- AMD Operating System Research Center Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632 -- 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/