drm/ttm: flip tt destroy ordering.

Call the driver first and have it call the common code cleanup.

This is useful later to fix unbind.

Reviewed-by: Christian König <[e-mail]>
Signed-off-by: Dave Airlie <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

···
 {
 	struct amdgpu_ttm_tt *gtt = (void *)ttm;
 
+	ttm_tt_destroy_common(bdev, ttm);
 	if (gtt->usertask)
 		put_task_struct(gtt->usertask);
 

drivers/gpu/drm/drm_gem_vram_helper.c

···
 
 static void bo_driver_ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *tt)
 {
+	ttm_tt_destroy_common(bdev, tt);
 	ttm_tt_fini(tt);
 	kfree(tt);
 }

drivers/gpu/drm/nouveau/nouveau_bo.c

···
 #if IS_ENABLED(CONFIG_AGP)
 	struct nouveau_drm *drm = nouveau_bdev(bdev);
 	if (drm->agp.bridge) {
+		ttm_tt_destroy_common(bdev, ttm);
 		ttm_agp_destroy(ttm);
 		return;
 	}

drivers/gpu/drm/nouveau/nouveau_sgdma.c

···
 	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 
 	if (ttm) {
+		ttm_tt_destroy_common(bdev, ttm);
 		ttm_dma_tt_fini(&nvbe->ttm);
 		kfree(nvbe);
 	}

drivers/gpu/drm/qxl/qxl_ttm.c

···
 {
 	struct qxl_ttm_tt *gtt = (void *)ttm;
 
+	ttm_tt_destroy_common(bdev, ttm);
 	ttm_tt_fini(&gtt->ttm);
 	kfree(gtt);
 }

drivers/gpu/drm/radeon/radeon_ttm.c

···
 {
 	struct radeon_ttm_tt *gtt = (void *)ttm;
 
+	ttm_tt_destroy_common(bdev, ttm);
+
 	ttm_dma_tt_fini(&gtt->ttm);
 	kfree(gtt);
 }
···
 	struct radeon_device *rdev = radeon_get_rdev(bdev);
 
 	if (rdev->flags & RADEON_IS_AGP) {
+		ttm_tt_destroy_common(bdev, ttm);
 		ttm_agp_destroy(ttm);
 		return;
 	}

drivers/gpu/drm/ttm/ttm_tt.c

···
 }
 EXPORT_SYMBOL(ttm_tt_set_placement_caching);
 
-void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
+void ttm_tt_destroy_common(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
 {
 	ttm_tt_unpopulate(bdev, ttm);
 
···
 		fput(ttm->swap_storage);
 
 	ttm->swap_storage = NULL;
+}
+EXPORT_SYMBOL(ttm_tt_destroy_common);
+
+void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
+{
 	bdev->driver->ttm_tt_destroy(bdev, ttm);
 }
 

drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c

···
 	struct vmw_ttm_tt *vmw_be =
 		container_of(ttm, struct vmw_ttm_tt, dma_ttm.ttm);
 
+	ttm_tt_destroy_common(bdev, ttm);
 	vmw_ttm_unmap_dma(vmw_be);
 	if (vmw_be->dev_priv->map_mode == vmw_dma_alloc_coherent)
 		ttm_dma_tt_fini(&vmw_be->dma_ttm);

include/drm/ttm/ttm_tt.h

···
 void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
 
 /**
+ * ttm_tt_destroy_common:
+ *
+ * Called from driver to destroy common path.
+ */
+void ttm_tt_destroy_common(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
+
+/**
  * ttm_tt_swapin:
  *
  * @ttm: The struct ttm_tt.