From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?UTF-8?Q?Christian_K=c3=b6nig?= <ckoenig.leichtzumerken-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH 01/11] drm/amdgpu: try allocating VRAM as power of two
Date: Tue, 11 Sep 2018 08:49:44 +0200
Message-ID: <9b61bb4c-4721-c8af-0810-4ecc18ed1ea4@gmail.com>
References: <20180909180339.1910-1-christian.koenig@amd.com>
 <20180909180339.1910-2-christian.koenig@amd.com>
 <60b9c96a-d31d-cd61-df22-c8414f0166dc@amd.com>
Reply-To: christian.koenig-5C7GfCeVMHo@public.gmane.org
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: <60b9c96a-d31d-cd61-df22-c8414f0166dc-5C7GfCeVMHo@public.gmane.org>
Content-Language: en-US
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: Felix Kuehling <felix.kuehling-5C7GfCeVMHo@public.gmane.org>, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
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