From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alex Deucher <alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: [PATCH 10/16] drm/amdgpu: fix the VM fault while write at the top of
 the invisible vram
Date: Wed, 12 Sep 2018 14:29:27 -0500
Message-ID: <20180912192933.28712-11-alexander.deucher@amd.com>
References: <20180912192933.28712-1-alexander.deucher@amd.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
In-Reply-To: <20180912192933.28712-1-alexander.deucher-5C7GfCeVMHo@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: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org>, Huang Rui <ray.huang-5C7GfCeVMHo@public.gmane.org>
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=