From: Christian König <deathsimple@vodafone.de>
Date: Thu, 5 Jul 2012 12:32:00 +0000 (+0200)
Subject: drm/radeon: remove vm_manager start/suspend
X-Git-Tag: v3.6-rc1~83^2~36^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c6105f249a637e1bb2b04b1cad7feaf507d06e8c;p=pandora-kernel.git

drm/radeon: remove vm_manager start/suspend

Just restore the page table instead. Addressing three
problem with this change:

1. Calling vm_manager_suspend in the suspend path is
   problematic cause it wants to wait for the VM use
   to end, which in case of a lockup never happens.

2. In case of a locked up memory controller
   unbinding the VM seems to make it even more
   unstable, creating an unrecoverable lockup
   in the end.

3. If we want to backup/restore the leftover ring
   content we must not unbind VMs in between.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---

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