floogen: Support endpoints with multiple non-contiguous address ranges (

#80)

* floogen(routing): Support multiple address ranges per endpoint

* floogen(examples): Update terapool example with multi address range

* docs: Update CHANGELOG

CHANGELOG.md

@@ -22,6 +22,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - All the various `*Cfg`'s is now rendered by _FlooGen_, either in the `*_noc_pkg` or in the `*_noc` module itself.
 - Added support for single-AXI configuration networks.
 - Support for negative increments when specifying a `src_range` or `dst_range` in the `connections` schema.
+- Add support for multiple non-contiguous address ranges for endpoints.
 
 ### Changed
 

floogen/examples/terapool.yml

@@ -51,13 +51,15 @@ endpoints:
     array: [16]
     addr_range:
       base: 0x0000_8000_0000
-      size: 0x0000_4000_0000
+      size: 0x0000_0400_0000
     sbr_port_protocol:
       - "wide_out"
   - name: "peripherals"
     addr_range:
-      start: 0x0000_0000_0000
-      end: 0x0000_0fff_ffff
+      - start: 0x0000_0000_0000
+        end: 0x0000_7fff_ffff
+      - start: 0x0000_C000_0000
+        end: 0x0000_C000_ffff
     mgr_port_protocol:
       - "wide_in"
     sbr_port_protocol:

floogen/model/endpoint.py

@@ -21,7 +21,7 @@ class EndpointDesc(BaseModel):
     name: str
     description: Optional[str] = ""
     array: Optional[Union[Tuple[int], Tuple[int, int]]] = None
-    addr_range: Optional[AddrRange] = None
+    addr_range: List[AddrRange] = []
     xy_id_offset: Optional[Id] = None
     mgr_port_protocol: Optional[List[str]] = None
     sbr_port_protocol: Optional[List[str]] = None
@@ -44,6 +44,14 @@ def dict_to_coord_obj(cls, v):
             case {"x": x, "y": y}:
                 return Coord(x=x, y=y)
 
+    @field_validator("addr_range", mode="before")
+    @classmethod
+    def addr_range_to_list(cls, v):
+        """Convert single AddrRange to list."""
+        if not isinstance(v, List):
+            return [v]
+        return v
+
     @model_validator(mode="after")
     def check_addr_range(self):
         """Check if the address range is valid."""

floogen/model/network.py

@@ -489,7 +489,7 @@ def compile_nis(self):
                 "name": f"{ni_name}",
                 "endpoint": ep_desc,
                 "routing": self.routing,
-                "addr_range": ep_desc.addr_range.model_copy() if ep_desc.addr_range else None,
+                "addr_range": [rng.model_copy() for rng in ep_desc.addr_range],
                 "id": self.graph.get_node_id(node_name=ni_name).model_copy(),
                 "uid": self.graph.get_node_uid(node_name=ni_name).model_copy(),
             }
@@ -505,16 +505,19 @@ def compile_nis(self):
                 case (_,):
                     node_idx = self.graph.get_node_arr_idx(ni_name)[0]
                     if ep_desc.is_sbr():
-                        ni_dict["addr_range"] = ep_desc.addr_range.model_copy().set_idx(node_idx)
+                        ni_dict["addr_range"] = [
+                            rng.model_copy().set_idx(node_idx) for rng in ep_desc.addr_range
+                        ]
 
                 # 2D array case
                 case (_, n):
                     x, y = self.graph.get_node_arr_idx(ni_name)
                     idx = x * n + y
                     ni_dict["arr_idx"] = Coord(x=x, y=y)
                     if ep_desc.is_sbr():
-                        ni_dict["addr_range"] = ep_desc.addr_range.model_copy().set_idx(idx)
-
+                        ni_dict["addr_range"] = [
+                            rng.model_copy().set_idx(idx) for rng in ep_desc.addr_range
+                        ]
                 # Invalid case
                 case _:
                     raise ValueError("Invalid endpoint array description")
@@ -605,7 +608,7 @@ def gen_xy_routing_info(self):
         min_y = min(ni.id.y for ni in ni_nodes)
         max_x = max(ni.id.x for ni in ni_nodes)
         max_y = max(ni.id.y for ni in ni_nodes)
-        max_address = max(ni.addr_range.end for ni in ni_sbr_nodes)
+        max_address = max(max(rng.end for rng in ni.addr_range) for ni in ni_sbr_nodes)
         xy_routing_info = {}
         xy_routing_info["num_x_bits"] = clog2(max_x - min_x + 1)
         xy_routing_info["num_y_bits"] = clog2(max_y - min_y + 1)
@@ -654,9 +657,9 @@ def gen_sam(self):
             dest = ni.id
             if self.routing.xy_id_offset is not None:
                 dest -= self.routing.xy_id_offset
-            addr_range = ni.addr_range
-            addr_rule = RouteMapRule(dest=dest, addr_range=addr_range, desc=ni.name)
-            addr_table.append(addr_rule)
+            for addr_range in ni.addr_range:
+                addr_rule = RouteMapRule(dest=dest, addr_range=addr_range, desc=ni.name)
+                addr_table.append(addr_rule)
         return RouteMap(name="sam", rules=addr_table)
 
     def render_ports(self, pkg_name=""):

floogen/model/network_interface.py

@@ -5,7 +5,7 @@
 #
 # Author: Tim Fischer <fischeti@iis.ee.ethz.ch>
 
-from typing import Optional, ClassVar
+from typing import Optional, ClassVar, List
 from importlib.resources import files, as_file
 
 from pydantic import BaseModel
@@ -29,7 +29,7 @@ class NetworkInterface(BaseModel):
     id: Optional[Id] = None
     uid: Optional[SimpleId] = None
     arr_idx: Optional[Id] = None
-    addr_range: Optional[AddrRange] = None
+    addr_range: Optional[List[AddrRange]] = None
 
     def is_sbr(self) -> bool:
         """Return true if the network interface is a subordinate."""

floogen/model/routing.py

@@ -207,7 +207,7 @@ def validate_input(self):
     def validate_output(self):
         """Validate the address range."""
         if self.start >= self.end:
-            raise ValueError("Invalid address range")
+            raise ValueError("Address range start must be less than end")
         return self
 
     def set_idx(self, idx):