From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f182.google.com (mail-ig0-f182.google.com [209.85.213.182]) by kanga.kvack.org (Postfix) with ESMTP id DD67A6B0038 for ; Fri, 24 Apr 2015 10:30:43 -0400 (EDT) Received: by igbhj9 with SMTP id hj9so16131754igb.1 for ; Fri, 24 Apr 2015 07:30:43 -0700 (PDT) Received: from resqmta-po-06v.sys.comcast.net (resqmta-po-06v.sys.comcast.net. [2001:558:fe16:19:96:114:154:165]) by mx.google.com with ESMTPS id ru4si2098521igb.43.2015.04.24.07.30.43 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 24 Apr 2015 07:30:43 -0700 (PDT) Date: Fri, 24 Apr 2015 09:30:40 -0500 (CDT) From: Christoph Lameter Subject: Re: Interacting with coherent memory on external devices In-Reply-To: <20150423185240.GO5561@linux.vnet.ibm.com> Message-ID: References: <20150421214445.GA29093@linux.vnet.ibm.com> <1429663372.27410.75.camel@kernel.crashing.org> <20150422005757.GP5561@linux.vnet.ibm.com> <1429664686.27410.84.camel@kernel.crashing.org> <20150422163135.GA4062@gmail.com> <1429756456.4915.22.camel@kernel.crashing.org> <20150423185240.GO5561@linux.vnet.ibm.com> Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: "Paul E. McKenney" Cc: Benjamin Herrenschmidt , Jerome Glisse , linux-kernel@vger.kernel.org, linux-mm@kvack.org, jglisse@redhat.com, mgorman@suse.de, aarcange@redhat.com, riel@redhat.com, airlied@redhat.com, aneesh.kumar@linux.vnet.ibm.com, Cameron Buschardt , Mark Hairgrove , Geoffrey Gerfin , John McKenna , akpm@linux-foundation.org On Thu, 23 Apr 2015, Paul E. McKenney wrote: > If by "entire industry" you mean everyone who might want to use hardware > acceleration, for example, including mechanical computer-aided design, > I am skeptical. The industry designs GPUs with super fast special ram and accellerators with special ram designed to do fast searches and you think you can demand page that stuff in from the main processor? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org