From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f72.google.com (mail-pg0-f72.google.com [74.125.83.72]) by kanga.kvack.org (Postfix) with ESMTP id B1BD86B0387 for ; Wed, 22 Feb 2017 02:19:23 -0500 (EST) Received: by mail-pg0-f72.google.com with SMTP id b2so8618883pgc.6 for ; Tue, 21 Feb 2017 23:19:23 -0800 (PST) Received: from mail-pg0-x241.google.com (mail-pg0-x241.google.com. [2607:f8b0:400e:c05::241]) by mx.google.com with ESMTPS id i3si460679plk.133.2017.02.21.23.19.22 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 Feb 2017 23:19:22 -0800 (PST) Received: by mail-pg0-x241.google.com with SMTP id s67so868524pgb.1 for ; Tue, 21 Feb 2017 23:19:22 -0800 (PST) From: Balbir Singh Date: Wed, 22 Feb 2017 18:19:15 +1100 Subject: Re: [HMM v17 00/14] HMM (Heterogeneous Memory Management) v17 Message-ID: <20170222071915.GE9967@balbir.ozlabs.ibm.com> References: <1485557541-7806-1-git-send-email-jglisse@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1485557541-7806-1-git-send-email-jglisse@redhat.com> Sender: owner-linux-mm@kvack.org List-ID: To: =?iso-8859-1?B?Suly9G1l?= Glisse Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, John Hubbard , Naoya Horiguchi , David Nellans On Fri, Jan 27, 2017 at 05:52:07PM -0500, Jerome Glisse wrote: > Cliff note: HMM offers 2 things (each standing on its own). First > it allows to use device memory transparently inside any process > without any modifications to process program code. Second it allows > to mirror process address space on a device. > > Change since v16: > - move HMM unaddressable device memory to its own radix tree and > thus find_dev_pagemap() will no longer return HMM dev_pagemap > - rename HMM migration helper (drop the prefix) and make them > completely independent of HMM > > Migration can now be use to implement thing like multi-threaded > copy or make use of specific memory allocator for destination > memory. > > Work is under way to use this feature inside nouveau (the upstream > open source driver for NVidia GPU) either 411 or 4.12 timeframe. > But this patchset have been otherwise tested with the close source > driver for NVidia GPU and thus we are confident it works and allow > to use the hardware for seamless interaction between CPU and GPU > in common address space of a process. > > I also discussed the features with other company and i am confident > it can be use on other, yet, unrelease hardware. > > Please condiser applying for 4.11 > Andrew, do we expect to get this in 4.11/4.12? Just curious. Balbir Singh. -- 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