From 9066b0c318589f47b754a3def4fe8ec4688dc21a Mon Sep 17 00:00:00 2001
From: Chunming Zhou <david1.zhou@amd.com>
Date: Tue, 25 Aug 2015 15:12:26 +0800
Subject: [PATCH] drm/amdgpu: fix no sync_wait in copy_buffer

when eviction is happening, if don't handle
dependency, then the fence could be dead off.

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian K?nig <christian.koenig@amd.com>
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Reading git-format-patch failed