From bd645e4314b95b21146aa6ff893d783de20c4e60 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Thu, 7 Aug 2014 09:36:04 +0200
Subject: [PATCH] drm/radeon: allow userptr write access under certain
 conditions
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It needs to be anonymous memory (no file mappings)
and we are requried to install an MMU notifier.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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