From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754304Ab1LIOnQ (ORCPT ); Fri, 9 Dec 2011 09:43:16 -0500 Received: from ch1ehsobe004.messaging.microsoft.com ([216.32.181.184]:19791 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752361Ab1LIOnO (ORCPT ); Fri, 9 Dec 2011 09:43:14 -0500 X-SpamScore: -19 X-BigFish: VPS-19(zz1432N98dKzz1202hzz15d4Rz2dh668h839h944h) X-Forefront-Antispam-Report: CIP:163.181.249.109;KIP:(null);UIP:(null);IPV:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-WSS-ID: 0LVXY7V-02-07X-02 X-M-MSG: Date: Fri, 9 Dec 2011 15:43:04 +0100 From: Joerg Roedel To: Jerome Glisse CC: , Subject: Re: [PATCH 0/22] Initial AMD IOMMUv2 support Message-ID: <20111209144304.GH3952@amd.com> References: <1323092077-25501-1-git-send-email-joerg.roedel@amd.com> <20111208204739.GC3179@homer.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20111208204739.GC3179@homer.localdomain> 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 On Thu, Dec 08, 2011 at 03:47:39PM -0500, Jerome Glisse wrote: > On Mon, Dec 05, 2011 at 02:34:15PM +0100, Joerg Roedel wrote: > > Hi, > > > > here is a patch-set that adds initial support for the AMD IOMMU version > > 2 to the Linux kernel. The main feature of the new IOMMU version is > > support for DMA demand-paging and multiple DMA address spaces per > > device. > > The patch-set consists of 2 parts. Patches 1-16 implement the hardware > > access functions to setup and manage the IOMMUv2 functionality of the > > hardware. Patches 17-22 implement a seperate module which makes use > > these functions to implement a page-fault handler for devices which can > > be used by real device drivers. > > What hw/chipset/CPU support this functionality ? This functionality will be supported in our Trinity APUs and South Islands GPUs, which will be shipping early next year. Official product names for these APUs and GPUs have not yet been announced. Joerg -- AMD Operating System Research Center Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632