drm/tegra: Extract tegra_gem_lookup()

The static function host1x_bo_lookup() in drm.c is also useful
elsewhere. Extract it as tegra_gem_lookup() in gem.c.

Signed-off-by: Mikko Perttunen <[e-mail]>
Signed-off-by: Thierry Reding <[e-mail]>

drivers/gpu/drm/tegra/drm.c

···
 	kfree(context);
 }
 
-static struct host1x_bo *
-host1x_bo_lookup(struct drm_file *file, u32 handle)
-{
-	struct drm_gem_object *gem;
-	struct tegra_bo *bo;
-
-	gem = drm_gem_object_lookup(file, handle);
-	if (!gem)
-		return NULL;
-
-	bo = to_tegra_bo(gem);
-	return &bo->base;
-}
-
 static int host1x_reloc_copy_from_user(struct host1x_reloc *dest,
 				       struct drm_tegra_reloc __user *src,
 				       struct drm_device *drm,
···
 
 	dest->flags = HOST1X_RELOC_READ | HOST1X_RELOC_WRITE;
 
-	dest->cmdbuf.bo = host1x_bo_lookup(file, cmdbuf);
+	dest->cmdbuf.bo = tegra_gem_lookup(file, cmdbuf);
 	if (!dest->cmdbuf.bo)
 		return -ENOENT;
 
-	dest->target.bo = host1x_bo_lookup(file, target);
+	dest->target.bo = tegra_gem_lookup(file, target);
 	if (!dest->target.bo)
 		return -ENOENT;
 
···
 			goto fail;
 		}
 
-		bo = host1x_bo_lookup(file, cmdbuf.handle);
+		bo = tegra_gem_lookup(file, cmdbuf.handle);
 		if (!bo) {
 			err = -ENOENT;
 			goto fail;

drivers/gpu/drm/tegra/gem.c

···
 
 	return &bo->gem;
 }
+
+struct host1x_bo *tegra_gem_lookup(struct drm_file *file, u32 handle)
+{
+	struct drm_gem_object *gem;
+	struct tegra_bo *bo;
+
+	gem = drm_gem_object_lookup(file, handle);
+	if (!gem)
+		return NULL;
+
+	bo = to_tegra_bo(gem);
+	return &bo->base;
+}

drivers/gpu/drm/tegra/gem.h

···
 struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm,
 					      struct dma_buf *buf);
 
+struct host1x_bo *tegra_gem_lookup(struct drm_file *file, u32 handle);
+
 #endif