diff --git a/mlir/include/mlir/Dialect/Tensor/IR/TensorTilingInterfaceImpl.h b/mlir/include/mlir/Dialect/Tensor/IR/TensorTilingInterfaceImpl.h
--- a/mlir/include/mlir/Dialect/Tensor/IR/TensorTilingInterfaceImpl.h
+++ b/mlir/include/mlir/Dialect/Tensor/IR/TensorTilingInterfaceImpl.h
@@ -47,7 +47,7 @@
 /// Registers external models for Tiling interface for tensor ops.
 /// Currently, it registers:
 ///
-/// * TilingInterface for `tensor.pad`.
+/// * TilingInterface for `tensor.pad`, `tensor.pack`, and `tensor.unpack`.
 ///
 /// Unfortunately, a "normal" internal registration is not possible at the
 /// moment, because of the dependency of the interface implementation for these
@@ -56,6 +56,11 @@
 /// implementation is moved to a separate library.
 void registerTilingInterfaceExternalModels(mlir::DialectRegistry &registry);
 
+/// Similar to the above registeration, but it is only for `tensor.pack` and
+/// `tensor.unpack` ops.
+void registerTilingInterfaceExternalModelsForPackUnPackOps(
+    DialectRegistry &registry);
+
 } // namespace tensor
 } // namespace mlir
 
diff --git a/mlir/lib/Dialect/Tensor/IR/TensorTilingInterfaceImpl.cpp b/mlir/lib/Dialect/Tensor/IR/TensorTilingInterfaceImpl.cpp
--- a/mlir/lib/Dialect/Tensor/IR/TensorTilingInterfaceImpl.cpp
+++ b/mlir/lib/Dialect/Tensor/IR/TensorTilingInterfaceImpl.cpp
@@ -654,3 +654,11 @@
     tensor::UnPackOp::attachInterface<UnPackOpTiling>(*ctx);
   });
 }
+
+void mlir::tensor::registerTilingInterfaceExternalModelsForPackUnPackOps(
+    DialectRegistry &registry) {
+  registry.addExtension(+[](MLIRContext *ctx, TensorDialect *dialect) {
+    tensor::PackOp::attachInterface<PackOpTiling>(*ctx);
+    tensor::UnPackOp::attachInterface<UnPackOpTiling>(*ctx);
+  });
+}