feat(precheck): add pin_check for gf180mcuD

and also enable magic drc

precheck/pin_check.py

@@ -1,6 +1,7 @@
 import logging
 import re
 from collections.abc import Iterable
+from functools import partial
 from itertools import combinations
 from numbers import Real
 
@@ -91,7 +92,7 @@ def canonicalize_rectangles(
     return sorted(set(closed_rects))
 
 
-def parsefp3(value: str):
+def parse_fp3(value: str):
     # parse fixed-point numbers with 3 digits after the decimal point
     # e.g. '20.470' to 20470
     ip, fp = value.split(".")
@@ -99,6 +100,14 @@ def parsefp3(value: str):
     return int(mul)
 
 
+def parse_dbu_to_nm(value: str, dbu_per_micron: int):
+    # parse a value in database units into nanometers
+    assert dbu_per_micron != 0
+    val_dbu = int(value)
+    assert (val_dbu * 1000) % dbu_per_micron == 0
+    return (val_dbu * 1000) // dbu_per_micron
+
+
 def pin_check(
     gds: str, lef: str, template_def: str, toplevel: str, uses_3v3: bool, tech: str
 ):
@@ -129,18 +138,16 @@ def pin_check(
             if line.startswith("UNITS "):
                 match = units_re.match(line)
                 (dbu_per_micron,) = map(int, match.groups())
+                parse_nm = partial(parse_dbu_to_nm, dbu_per_micron=dbu_per_micron)
             elif line.startswith("DIEAREA "):
                 match = diearea_re.match(line)
-                lx, by, rx, ty = map(int, match.groups())
+                lx, by, rx, ty = map(parse_nm, match.groups())
                 if (lx, by) != (0, 0):
                     raise PrecheckFailure(
                         "Wrong die origin in template DEF, expecting (0, 0)"
                     )
-                assert dbu_per_micron != 0
-                assert (rx * 1000) % dbu_per_micron == 0
-                assert (ty * 1000) % dbu_per_micron == 0
-                die_width = (rx * 1000) // dbu_per_micron
-                die_height = (ty * 1000) // dbu_per_micron
+                die_width = rx
+                die_height = ty
             elif line.startswith("PINS "):
                 match = pins_re.match(line)
                 pin_count = int(match.group(1))
@@ -164,12 +171,12 @@ def pin_check(
             line = next(f)
             match = layer_re.match(line)
             layer, lx, by, rx, ty = match.groups()
-            lx, by, rx, ty = map(int, (lx, by, rx, ty))
+            lx, by, rx, ty = map(parse_nm, (lx, by, rx, ty))
 
             line = next(f)
             match = placed_re.match(line)
             ox, oy, direction = match.groups()
-            ox, oy = map(int, (ox, oy))
+            ox, oy = map(parse_nm, (ox, oy))
 
             if pin_name in def_pins:
                 raise PrecheckFailure("Duplicate pin in template DEF")
@@ -214,14 +221,14 @@ def pin_check(
             elif macro_active:
                 if line.startswith("ORIGIN "):
                     match = origin_re.match(line)
-                    lx, by = map(parsefp3, match.groups())
+                    lx, by = map(parse_fp3, match.groups())
                     if lx != 0 or by != 0:
                         raise PrecheckFailure(
                             "Wrong die origin in LEF, expecting (0, 0)"
                         )
                 elif line.startswith("SIZE "):
                     match = size_re.match(line)
-                    rx, ty = map(parsefp3, match.groups())
+                    rx, ty = map(parse_fp3, match.groups())
                     if (rx, ty) != (die_width, die_height):
                         raise PrecheckFailure(
                             f"Inconsistent die area between LEF and template DEF: ({rx}, {ty}) != ({die_width}, {die_height})"
@@ -250,7 +257,7 @@ def pin_check(
                         line = next(f).strip()
                         while line.startswith("RECT "):
                             match = rect_re.match(line)
-                            lx, by, rx, ty = map(parsefp3, match.groups())
+                            lx, by, rx, ty = map(parse_fp3, match.groups())
                             pin_rects += 1
                             if current_pin not in lef_ports:
                                 lef_ports[current_pin] = []
@@ -369,6 +376,9 @@ def pin_check(
         raise PrecheckFailure("Wrong cell at GDS top-level")
     top = top[0]
 
+    gds_errors = 0
+
+    if tech != "gf180mcuD":
         gds_layers = valid_lef_port_layers[tech]
         gds_layer_lookup = {j: i for i, j in gds_layers.items()}
         polygon_list = {layer: [] for layer in gds_layers}
@@ -381,7 +391,6 @@ def pin_check(
         for layer in gds_layers:
             merged_layers[layer] = gdstk.boolean(polygon_list[layer], [], "or")
 
-    gds_errors = 0
         for current_pin, lef_rects in sorted(lef_ports_orig.items()):
             for layer, lx, by, rx, ty in lef_rects:
                 if layer + ".pin" not in gds_layers:

precheck/precheck.py

@@ -337,7 +337,7 @@ def main():
         {
             "name": "Magic DRC",
             "check": lambda: magic_drc(gds_file, top_module),
-            "techs": ["sky130A"],
+            "techs": ["sky130A", "gf180mcuD"],
         },
         {
             "name": "KLayout FEOL",
@@ -377,7 +377,6 @@ def main():
             "check": lambda: pin_check(
                 gds_file, lef_file, template_def, top_module, uses_3v3, tech
             ),
-            "techs": ["sky130A", "ihp-sg13g2"],
         },
         {"name": "Boundary check", "check": lambda: boundary_check(gds_file, tech)},
         {