drm/ttm: cleanup some old defines

Use pr_debug instead of TTM_DEBUG, fix the lockdep assert and remove the
unused constant.

Signed-off-by: Christian König <[e-mail]>
Reviewed-by: Roger He <[e-mail]>
Reviewed-by: Thomas Hellstrom <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/ttm/ttm_bo.c

···
 #include <linux/atomic.h>
 #include <linux/reservation.h>
 
-#define TTM_ASSERT_LOCKED(param)
-#define TTM_DEBUG(fmt, arg...)
-#define TTM_BO_HASH_ORDER 13
-
 static int ttm_bo_swapout(struct ttm_mem_shrink *shrink);
 static void ttm_bo_global_kobj_release(struct kobject *kobj);
 
···
 	int ret = 0;
 	uint32_t page_flags = 0;
 
-	TTM_ASSERT_LOCKED(&bo->mutex);
+	reservation_object_assert_held(bo->resv);
 	bo->ttm = NULL;
 
 	if (bdev->need_dma32)
···
 	cancel_delayed_work_sync(&bdev->wq);
 
 	if (ttm_bo_delayed_delete(bdev, true))
-		TTM_DEBUG("Delayed destroy list was clean\n");
+		pr_debug("Delayed destroy list was clean\n");
 
 	spin_lock(&glob->lru_lock);
 	for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
 		if (list_empty(&bdev->man[0].lru[0]))
-			TTM_DEBUG("Swap list %d was clean\n", i);
+			pr_debug("Swap list %d was clean\n", i);
 	spin_unlock(&glob->lru_lock);
 
 	drm_vma_offset_manager_destroy(&bdev->vma_manager);