static void amdgpu_ttm_bo_destroy(struct ttm_buffer_object *tbo)
 {
        struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
-       struct amdgpu_bo *bo;
-
-       bo = container_of(tbo, struct amdgpu_bo, tbo);
+       struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
 
        amdgpu_bo_kunmap(bo);
 
        if (!amdgpu_ttm_bo_is_amdgpu_bo(bo))
                return;
 
-       abo = container_of(bo, struct amdgpu_bo, tbo);
+       abo = ttm_to_amdgpu_bo(bo);
        amdgpu_vm_bo_invalidate(adev, abo, evict);
 
        amdgpu_bo_kunmap(abo);
        if (!amdgpu_ttm_bo_is_amdgpu_bo(bo))
                return 0;
 
-       abo = container_of(bo, struct amdgpu_bo, tbo);
+       abo = ttm_to_amdgpu_bo(bo);
 
        /* Remember that this BO was accessed by the CPU */
        abo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
 
        };
 };
 
+static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo)
+{
+       return container_of(tbo, struct amdgpu_bo, tbo);
+}
+
 /**
  * amdgpu_mem_type_to_domain - return domain corresponding to mem_type
  * @mem_type:  ttm memory type
 
 #include <linux/debugfs.h>
 #include <linux/iommu.h>
 #include "amdgpu.h"
+#include "amdgpu_object.h"
 #include "amdgpu_trace.h"
 #include "bif/bif_4_1_d.h"
 
                placement->num_busy_placement = 1;
                return;
        }
-       abo = container_of(bo, struct amdgpu_bo, tbo);
+       abo = ttm_to_amdgpu_bo(bo);
        switch (bo->mem.mem_type) {
        case TTM_PL_VRAM:
                if (adev->mman.buffer_funcs &&
 
 static int amdgpu_verify_access(struct ttm_buffer_object *bo, struct file *filp)
 {
-       struct amdgpu_bo *abo = container_of(bo, struct amdgpu_bo, tbo);
+       struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
 
        if (amdgpu_ttm_tt_get_usermm(bo->ttm))
                return -EPERM;
        int r;
 
        /* Can't move a pinned BO */
-       abo = container_of(bo, struct amdgpu_bo, tbo);
+       abo = ttm_to_amdgpu_bo(bo);
        if (WARN_ON_ONCE(abo->pin_count > 0))
                return -EINVAL;
 
                                    unsigned long offset,
                                    void *buf, int len, int write)
 {
-       struct amdgpu_bo *abo = container_of(bo, struct amdgpu_bo, tbo);
+       struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo);
        struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
        struct drm_mm_node *nodes = abo->tbo.mem.mm_node;
        uint32_t value = 0;