drm/ttm: Export symbols needed for vmwgfx suspend / resume operations.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/ttm/ttm_bo.c

@@ -1867,3 +1867,4 @@ void ttm_bo_swapout_all(struct ttm_bo_device *bdev)
 	while (ttm_bo_swapout(&bdev->glob->shrink) == 0)
 		;
 }
+EXPORT_SYMBOL(ttm_bo_swapout_all);

drivers/gpu/drm/ttm/ttm_lock.c

@@ -288,6 +288,7 @@ void ttm_suspend_unlock(struct ttm_lock *lock)
 	wake_up_all(&lock->queue);
 	spin_unlock(&lock->lock);
 }
+EXPORT_SYMBOL(ttm_suspend_unlock);
 
 static bool __ttm_suspend_lock(struct ttm_lock *lock)
 {
@@ -309,3 +310,4 @@ void ttm_suspend_lock(struct ttm_lock *lock)
 {
 	wait_event(lock->queue, __ttm_suspend_lock(lock));
 }
+EXPORT_SYMBOL(ttm_suspend_lock);