From 401c29f607702864fd00b6154325f7570ebaba4f Mon Sep 17 00:00:00 2001
From: Ben Widawsky <ben@bwidawsk.net>
Date: Fri, 31 May 2013 11:28:47 -0700
Subject: [PATCH] drm/i915: unpin pages at unbind

If we properly keep track of the pages_pin_count, then when we later add
multiple address spaces, the put_pages doesn't need any special checks
to be able to perform it's job.

CC: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Rebased on top of the fix for stolen memory pinning.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Reading git-format-patch failed