From f9a18188def2301ac0b3311d748732a47fb6108f Mon Sep 17 00:00:00 2001
From: Leo Moser <leomoser99@gmail.com>
Date: Sun, 7 Jan 2024 16:58:18 +0100
Subject: [PATCH] Support for gf180mcuD (#190)

It seems like support for gf180mcu is currently broken. I fixed up gf180mcuC and renamed it to gf180mcuD since this is the PDK which is currently used for the MPW shuttles.

The 8x32 RAM successfully builds:
`./dffram.py -p gf180mcuD -s gf180mcu_fd_sc_mcu7t5v0 -b ram 8x32`
But I seem to get a lot of hold violations. Well, better than nothing for now :)
---
 dffram.py                                                  | 4 +++-
 platforms/gf180mcuC/process_data.yml                       | 2 --
 platforms/{gf180mcuC => gf180mcuD}/fill_cells.yml          | 0
 .../gf180mcu_fd_sc_mcu7t5v0/block_definitions.v            | 0
 .../gf180mcu_fd_sc_mcu7t5v0/tech.yml                       | 7 ++++++-
 platforms/gf180mcuD/process_data.yml                       | 2 ++
 6 files changed, 11 insertions(+), 4 deletions(-)
 delete mode 100644 platforms/gf180mcuC/process_data.yml
 rename platforms/{gf180mcuC => gf180mcuD}/fill_cells.yml (100%)
 rename platforms/{gf180mcuC => gf180mcuD}/gf180mcu_fd_sc_mcu7t5v0/block_definitions.v (100%)
 rename platforms/{gf180mcuC => gf180mcuD}/gf180mcu_fd_sc_mcu7t5v0/tech.yml (78%)
 create mode 100644 platforms/gf180mcuD/process_data.yml

diff --git a/dffram.py b/dffram.py
index a52a4f9..21fa5ed 100755
--- a/dffram.py
+++ b/dffram.py
@@ -316,6 +316,8 @@ def main(
     if building_blocks == "rf":
         logical_width = word_width
 
+    rt_max_layer = tech_info["metal_layers"]["rt-max-layer"]
+
     TargetFlow = Flow.factory.get(flow_name) or DFFRAM
     dffram_flow = TargetFlow(
         {
@@ -324,7 +326,7 @@ def main(
             "CLOCK_PERIOD": clock_period,
             "GPL_CELL_PADDING": 0,
             "DPL_CELL_PADDING": 0,
-            "RT_MAX_LAYER": "met4",
+            "RT_MAX_LAYER": rt_max_layer,
             "GRT_ALLOW_CONGESTION": True,
             "PDK": pdk,
             "STD_CELL_LIBRARY": scl,
diff --git a/platforms/gf180mcuC/process_data.yml b/platforms/gf180mcuC/process_data.yml
deleted file mode 100644
index cefc2e4..0000000
--- a/platforms/gf180mcuC/process_data.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-volare_pdk_family: gf180mcu
-volare_pdk_version: 9f1c2b06d2b5a6708cfe0b55679c7e84d37220cc
\ No newline at end of file
diff --git a/platforms/gf180mcuC/fill_cells.yml b/platforms/gf180mcuD/fill_cells.yml
similarity index 100%
rename from platforms/gf180mcuC/fill_cells.yml
rename to platforms/gf180mcuD/fill_cells.yml
diff --git a/platforms/gf180mcuC/gf180mcu_fd_sc_mcu7t5v0/block_definitions.v b/platforms/gf180mcuD/gf180mcu_fd_sc_mcu7t5v0/block_definitions.v
similarity index 100%
rename from platforms/gf180mcuC/gf180mcu_fd_sc_mcu7t5v0/block_definitions.v
rename to platforms/gf180mcuD/gf180mcu_fd_sc_mcu7t5v0/block_definitions.v
diff --git a/platforms/gf180mcuC/gf180mcu_fd_sc_mcu7t5v0/tech.yml b/platforms/gf180mcuD/gf180mcu_fd_sc_mcu7t5v0/tech.yml
similarity index 78%
rename from platforms/gf180mcuC/gf180mcu_fd_sc_mcu7t5v0/tech.yml
rename to platforms/gf180mcuD/gf180mcu_fd_sc_mcu7t5v0/tech.yml
index fcd9d99..2c3ba5d 100644
--- a/platforms/gf180mcuC/gf180mcu_fd_sc_mcu7t5v0/tech.yml
+++ b/platforms/gf180mcuD/gf180mcu_fd_sc_mcu7t5v0/tech.yml
@@ -29,4 +29,9 @@ sta:
       "512x*": 11.21
       "1024x*": 12.83
       "2048x*": 14.1
-    rf: {}
\ No newline at end of file
+    rf: {}
+fills:
+  decap: gf180mcu_fd_sc_mcu7t5v0__fillcap_(\d+)
+  fill: gf180mcu_fd_sc_mcu7t5v0__fill_(\d+)
+  tap: gf180mcu_fd_sc_mcu7t5v0__filltie
+  diode: gf180mcu_fd_sc_mcu7t5v0__antenna
diff --git a/platforms/gf180mcuD/process_data.yml b/platforms/gf180mcuD/process_data.yml
new file mode 100644
index 0000000..2344047
--- /dev/null
+++ b/platforms/gf180mcuD/process_data.yml
@@ -0,0 +1,2 @@
+volare_pdk_family: gf180mcu
+volare_pdk_version: e0f692f46654d6c7c99fc70a0c94a080dab53571