From: Michal Srb <msrb@suse.com>
Date: Tue, 6 Aug 2013 13:26:50 +0000 (+0200)
Subject: drm/cirrus: Invalidate page tables when pinning a BO
X-Git-Tag: v3.11-rc5~16^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=109a51598869a39fdcec2d49672a9a39b6d89481;p=pandora-kernel.git

drm/cirrus: Invalidate page tables when pinning a BO

This is a cirrus version of Egbert Eich's patch for mgag200.

Without bo.bdev->dev_mapping set, the ttm_bo_unmap_virtual_locked
called from ttm_bo_handle_move_mem returns with no effect. If any
application accessed the memory before it was moved, it will
access wrong memory next time. This causes crashes when changing
resolution down.

Signed-off-by: Michal Srb <msrb@suse.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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