From mboxrd@z Thu Jan  1 00:00:00 1970
From: zhoucm1 <david1.zhou-5C7GfCeVMHo@public.gmane.org>
Subject: Re: [PATCH v2 1/2] drm/amdgpu: add optional fence out-parameter to
 amdgpu_vm_clear_freed
Date: Fri, 24 Mar 2017 10:30:35 +0800
Message-ID: <58D484CB.1020306@amd.com>
References: <20170323192705.5474-1-nhaehnle@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
In-Reply-To: <20170323192705.5474-1-nhaehnle-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
List-Id: Discussion list for AMD gfx <amd-gfx.lists.freedesktop.org>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/amd-gfx>,
 <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/amd-gfx>
List-Post: <mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
List-Help: <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/amd-gfx>,
 <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=subscribe>
Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Sender: "amd-gfx" <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
To: =?UTF-8?B?Tmljb2xhaSBIw6Robmxl?= <nhaehnle-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: =?UTF-8?B?Tmljb2xhaSBIw6Robmxl?= <nicolai.haehnle-5C7GfCeVMHo@public.gmane.org>
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