From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932706AbeEaBqv (ORCPT ); Wed, 30 May 2018 21:46:51 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:42736 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932593AbeEaBqs (ORCPT ); Wed, 30 May 2018 21:46:48 -0400 Subject: Re: [PATCH 0/8] xen: dma-buf support for grant device To: Oleksandr Andrushchenko , xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, jgross@suse.com, konrad.wilk@oracle.com Cc: daniel.vetter@intel.com, dongwon.kim@intel.com, matthew.d.roper@intel.com, Oleksandr Andrushchenko References: <20180525153331.31188-1-andr2000@gmail.com> From: Boris Ostrovsky Message-ID: <9687b6e5-808e-0c63-34c3-90e6fcbdfb2e@oracle.com> Date: Wed, 30 May 2018 21:46:28 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <20180525153331.31188-1-andr2000@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8909 signatures=668702 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1805220000 definitions=main-1805310016 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/25/2018 11:33 AM, Oleksandr Andrushchenko wrote: > > Oleksandr Andrushchenko (8): > xen/grant-table: Make set/clear page private code shared > xen/balloon: Move common memory reservation routines to a module > xen/grant-table: Allow allocating buffers suitable for DMA > xen/gntdev: Allow mappings for DMA buffers > xen/gntdev: Add initial support for dma-buf UAPI > xen/gntdev: Implement dma-buf export functionality > xen/gntdev: Implement dma-buf import functionality > xen/gntdev: Expose gntdev's dma-buf API for in-kernel use > > drivers/xen/Kconfig | 23 + > drivers/xen/Makefile | 1 + > drivers/xen/balloon.c | 71 +-- > drivers/xen/gntdev.c | 1025 ++++++++++++++++++++++++++++++++- I think this calls for gntdev_dma.c. I only had a quick look over gntdev changes but they very much are concentrated in dma-specific routines. You essentially only share file_operations entry points with original gntdev code, right? -boris > drivers/xen/grant-table.c | 176 +++++- > drivers/xen/mem-reservation.c | 134 +++++ > include/uapi/xen/gntdev.h | 106 ++++ > include/xen/grant_dev.h | 37 ++ > include/xen/grant_table.h | 28 + > include/xen/mem_reservation.h | 29 + > 10 files changed, 1527 insertions(+), 103 deletions(-) > create mode 100644 drivers/xen/mem-reservation.c > create mode 100644 include/xen/grant_dev.h > create mode 100644 include/xen/mem_reservation.h >