Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754529AbdIZTWz (ORCPT ); Tue, 26 Sep 2017 15:22:55 -0400 Received: from mail-pg0-f44.google.com ([74.125.83.44]:55579 "EHLO mail-pg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751672AbdIZTWy (ORCPT ); Tue, 26 Sep 2017 15:22:54 -0400 X-Google-Smtp-Source: AOwi7QA6zNKfENVr7xRsxkT7WurhYeOc3U9p2e/5ni+Hw5YbMsWFUefjDB9SrKMfA8zeMJH0vzaWWQ== Subject: Re: [PATCH 1/1] [tools]: android/ion: userspace test utility for ion buffer sharing To: Pintu Agarwal , linux-kernel@vger.kernel.org Cc: pintu_agarwal@yahoo.com References: <1506449281-8790-1-git-send-email-pintu.ping@gmail.com> From: Laura Abbott Message-ID: <403830bf-862c-6857-3e2f-5887e91c3280@redhat.com> Date: Tue, 26 Sep 2017 12:22:51 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <1506449281-8790-1-git-send-email-pintu.ping@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1510 Lines: 40 On 09/26/2017 11:08 AM, Pintu Agarwal wrote: > This is a test utility to verify ION buffer sharing in user space > between 2 independent processes. > It uses unix domain socket as IPC to transfer an FD to another process > and install it. > > This utility demonstrates how ION buffer sharing can be implemented between > two user space processes, using various heap ids. > > This utility is verified on Ubuntu 32-bit machine using 2 independent > process such as: ionapp_export (server) and ionapp_import (client). > First the server needs to be run to export FD to the client. > This utility works only if /dev/ion interface is present. > > Here is a sample demo example: > > linux-stable/tools/android/ion$ sudo ./ionapp_export.out -i 1 -s 10 > heap_type: 2, heap_size: 10 > Fill buffer content: > 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd > Sharing fd: 6, Client fd: 5 > : buffer release successfully.... > > linux-stable/tools/android/ion$ sudo ./ionapp_import.out > Received buffer fd: 4 > Read buffer content: > 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd > Fill buffer content: > 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd > 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd > 0xfd 0xfd 0xfd 0xfd > : buffer release successfully.... > > Signed-off-by: Pintu Agarwal This is a good start on a test app for Ion but it needs to be updated to use the new ABI. Thanks, Laura