regression in suspend/resume on Polaris

tom.stdenis@xxxxxxx (Tom St Denis) · Mon, 20 Nov 2017 08:18:03 -0500

Hi,

This commit causes a failure (attached) on resume with a Polaris10 
device installed (during uvd video playback).

commit 1cfd8e237f0318e330190ac21d63c58ae6a1f66c (HEAD, refs/bisect/bad)
Author: Monk Liu <Monk.Liu at amd.com>
Date:   Tue Nov 14 11:52:35 2017 +0800

     drm/amdgpu:cleanup GMC & gart garbage function

     for gart_ram_alloc/free, they are never used in driver thus
     ripe them out totally.

     for gart_vram_pin/unpin, they are not needed becuase we can
     use bo_creat_kernel/free to replace the original manual way
     in the gart_vram_alloc/free, thus gart_vram_pin/unpin can
     also be riped out.

     Change-Id: Ic60949b59d8b363e5199f6c11d9ea4a15ec57519
     Signed-off-by: Monk Liu <Monk.Liu at amd.com>
     Reviewed-by: Christian KÃ¶nig <christian.koenig at amd.com>

Cheers,
Tom
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