Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754997AbcKYTe0 (ORCPT ); Fri, 25 Nov 2016 14:34:26 -0500 Received: from quartz.orcorp.ca ([184.70.90.242]:57035 "EHLO quartz.orcorp.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754553AbcKYTeQ (ORCPT ); Fri, 25 Nov 2016 14:34:16 -0500 Date: Fri, 25 Nov 2016 12:34:10 -0700 From: Jason Gunthorpe To: Serguei Sagalovitch Cc: Christian =?iso-8859-1?Q?K=F6nig?= , Logan Gunthorpe , Dan Williams , "Deucher, Alexander" , "linux-nvdimm@lists.01.org" , "linux-rdma@vger.kernel.org" , "linux-pci@vger.kernel.org" , "Kuehling, Felix" , "Bridgman, John" , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "Sander, Ben" , "Suthikulpanit, Suravee" , "Blinzer, Paul" , "Linux-media@vger.kernel.org" , Haggai Eran Subject: Re: Enabling peer to peer device transactions for PCIe devices Message-ID: <20161125193410.GD16504@obsidianresearch.com> References: <7bc38037-b6ab-943f-59db-6280e16901ab@amd.com> <20161123193228.GC12146@obsidianresearch.com> <20161123203332.GA15062@obsidianresearch.com> <20161123215510.GA16311@obsidianresearch.com> <91d28749-bc64-622f-56a1-26c00e6b462a@deltatee.com> <20161124164249.GD20818@obsidianresearch.com> <3f2d2db3-fb75-2422-2a18-a8497fd5d70e@amd.com> <7ff3cf70-b0c3-028e-fea8-c370a1185b65@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7ff3cf70-b0c3-028e-fea8-c370a1185b65@amd.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Broken-Reverse-DNS: no host name found for IP address 10.0.0.151 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 259 Lines: 9 On Fri, Nov 25, 2016 at 12:16:30PM -0500, Serguei Sagalovitch wrote: > b) Allocation may not have CPU address at all - only GPU one. But you don't expect RDMA to work in the case, right? GPU people need to stop doing this windowed memory stuff :) Jason