Support regioning option when creating dreamplace params.

PiperOrigin-RevId: 667195280
Change-Id: I2078d08d34ce36519a5f875ebb5061ffd27ec268

circuit_training/dreamplace/dreamplace_util.py

@@ -87,6 +87,7 @@ def get_dreamplace_params(
     routability_opt_flag: bool = False,
     num_threads: int = 8,
     deterministic_flag: bool = False,
+    regioning: bool = False,
 ):
   """Returns the parameters to config Dreamplace."""
   params = Params.Params()
@@ -129,8 +130,7 @@ def get_dreamplace_params(
   params.gpu = gpu
   params.result_dir = result_dir
   params.stop_overflow = stop_overflow
-  # disable fence region feature
-  params.regioning = False
+  params.regioning = regioning
 
   # routability optimization flags:
   params.routability_opt_flag = routability_opt_flag

circuit_training/environment/environment.py

@@ -322,14 +322,17 @@ def macro_names(self) -> list[str]:
     return [self._plc.get_node_name(m) for m in macro_ids]
 
   def create_dreamplace(
-      self, dp_target_density: float,
+      self,
+      dp_target_density: float,
+      regioning: bool = False,
   ) -> dreamplace_core.SoftMacroPlacer:
     """Creates the SoftMacroPlacer."""
     canvas_width, canvas_height = self._plc.get_canvas_width_height()
     dreamplace_params = dreamplace_util.get_dreamplace_params(
         target_density=dp_target_density,
         canvas_width=canvas_width,
         canvas_height=canvas_height,
+        regioning=regioning,
     )
     # Dreamplace requires that movable nodes appear first
     # and then fixed nodes.