From mboxrd@z Thu Jan  1 00:00:00 1970
From: zhoucm1 <zhoucm1-5C7GfCeVMHo@public.gmane.org>
Subject: Re: [PATCH 1/2] drm/ttm: Add TTM_PAGE_FLAG_TRANSHUGE
Date: Fri, 27 Apr 2018 10:51:05 +0800
Message-ID: <a77d7229-e8f7-83bf-2098-8db07cebb117@amd.com>
References: <20180426150618.13470-1-michel@daenzer.net>
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: <20180426150618.13470-1-michel-otUistvHUpPR7s880joybQ@public.gmane.org>
Content-Language: en-US
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?Q?Michel_D=c3=a4nzer?= <michel-otUistvHUpPR7s880joybQ@public.gmane.org>, =?UTF-8?Q?Christian_K=c3=b6nig?= <christian.koenig-5C7GfCeVMHo@public.gmane.org>, Roger He <Hongbo.He-5C7GfCeVMHo@public.gmane.org>
Cc: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
List-Id: dri-devel@lists.freedesktop.org
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