Added a full fill generation script which breaks a design up into
tiles for faster, more memory-efficient processing. This includes
some changes to the techfile to create two variants for the fill
patterning, one that should be used for a full-chip pattern, and
one to be used with the script. Also removed the patch file from
yesterday's commit.
diff --git a/VERSION b/VERSION
index f42a27c..7776610 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.96
+1.0.97
diff --git a/pdk.patch b/pdk.patch
deleted file mode 100644
index 166dda4..0000000
--- a/pdk.patch
+++ /dev/null
@@ -1,337 +0,0 @@
-commit c8e490f65d8624cc2e39147afd1c0269cac7f8b4
-Author: Donn <me@donn.website>
-Date: Tue Dec 29 01:38:02 2020 +0200
-
- Looking for PDKs in standard directories then downloading
-
-diff --git a/scripts/.gitignore b/scripts/.gitignore
-index b1083e1..1383243 100644
---- a/scripts/.gitignore
-+++ b/scripts/.gitignore
-@@ -4,4 +4,4 @@
- !configure.ac
- !tools.txt
- !print_tools_make.pl
--!dl
-\ No newline at end of file
-+!download.sh
-\ No newline at end of file
-diff --git a/scripts/configure b/scripts/configure
-index ba4f0c8..5e03076 100755
---- a/scripts/configure
-+++ b/scripts/configure
-@@ -628,6 +628,7 @@ infodir
- docdir
- oldincludedir
- includedir
-+runstatedir
- localstatedir
- sharedstatedir
- sysconfdir
-@@ -706,6 +707,7 @@ datadir='${datarootdir}'
- sysconfdir='${prefix}/etc'
- sharedstatedir='${prefix}/com'
- localstatedir='${prefix}/var'
-+runstatedir='${localstatedir}/run'
- includedir='${prefix}/include'
- oldincludedir='/usr/include'
- docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
-@@ -958,6 +960,15 @@ do
- | -silent | --silent | --silen | --sile | --sil)
- silent=yes ;;
-
-+ -runstatedir | --runstatedir | --runstatedi | --runstated \
-+ | --runstate | --runstat | --runsta | --runst | --runs \
-+ | --run | --ru | --r)
-+ ac_prev=runstatedir ;;
-+ -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
-+ | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
-+ | --run=* | --ru=* | --r=*)
-+ runstatedir=$ac_optarg ;;
-+
- -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
- ac_prev=sbindir ;;
- -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
-@@ -1095,7 +1106,7 @@ fi
- for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
- datadir sysconfdir sharedstatedir localstatedir includedir \
- oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-- libdir localedir mandir
-+ libdir localedir mandir runstatedir
- do
- eval ac_val=\$$ac_var
- # Remove trailing slashes.
-@@ -1248,6 +1259,7 @@ Fine tuning of the installation directories:
- --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
- --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
- --localstatedir=DIR modifiable single-machine data [PREFIX/var]
-+ --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
- --libdir=DIR object code libraries [EPREFIX/lib]
- --includedir=DIR C header files [PREFIX/include]
- --oldincludedir=DIR C header files for non-gcc [/usr/include]
-@@ -1279,7 +1291,7 @@ Optional Features:
- --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
- --enable-sky130-pdk=[/path/to/sky130/] --disable-sky130-pdk
- "location of the source files for the sky130 (pdks
-- with a pdk_url file can automatically download them
-+ with a pdk_info file can automatically download them
- if the path is omitted)"
- --enable-klayout
- Enable or disable klayout [default=enabled]
-@@ -1797,22 +1809,22 @@ $as_echo "$as_me: Found technology directories: sky130" >&6;}
- SKY130_LINK_TARGETS="none"
-
- pdk_get() {
-- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ../sky130/pdk_url" >&5
--$as_echo_n "checking for ../sky130/pdk_url... " >&6; }
--if ${ac_cv_file____sky130_pdk_url+:} false; then :
-+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ../sky130/pdk_info" >&5
-+$as_echo_n "checking for ../sky130/pdk_info... " >&6; }
-+if ${ac_cv_file____sky130_pdk_info+:} false; then :
- $as_echo_n "(cached) " >&6
- else
- test "$cross_compiling" = yes &&
- as_fn_error $? "cannot check for file existence when cross compiling" "$LINENO" 5
--if test -r "../sky130/pdk_url"; then
-- ac_cv_file____sky130_pdk_url=yes
-+if test -r "../sky130/pdk_info"; then
-+ ac_cv_file____sky130_pdk_info=yes
- else
-- ac_cv_file____sky130_pdk_url=no
-+ ac_cv_file____sky130_pdk_info=no
- fi
- fi
--{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_file____sky130_pdk_url" >&5
--$as_echo "$ac_cv_file____sky130_pdk_url" >&6; }
--if test "x$ac_cv_file____sky130_pdk_url" = xyes; then :
-+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_file____sky130_pdk_info" >&5
-+$as_echo "$ac_cv_file____sky130_pdk_info" >&6; }
-+if test "x$ac_cv_file____sky130_pdk_info" = xyes; then :
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ../pdks/sky130" >&5
- $as_echo_n "checking for ../pdks/sky130... " >&6; }
-@@ -1835,9 +1847,11 @@ if test "x$ac_cv_file____pdks_sky130" = xyes; then :
-
- else
-
-- mkdir -p ../pdks/sky130
-- sh dl $(cat "../sky130/pdk_get") ../pdks/sky130.tar.gz;
-- (echo "Extracting sky130" && cd ../pdks && tar -xf sky130.tar.gz --strip-components 1 -C ../pdks/sky130)
-+ REPO=$(cat "../sky130/pdk_info" | sed -n "1p")
-+ POST_CLONE_COMMANDS=$(cat "../sky130/pdk_info" | sed "1d")
-+ mkdir -p ../pdks
-+ git clone "$REPO" ../pdks/sky130;
-+ (cd ../pdks/sky130 && sh -c "$POST_CLONE_COMMANDS")
-
- fi
-
-@@ -1851,11 +1865,26 @@ fi
-
- }
-
-+ pdk_find() {
-+ FOUND=0
-+ for path in /opt/pdks/sky130 /usr/share/pdks/sky130 /usr/local/share/pdks/sky130; do
-+ if [ -d $path ] ; then
-+ echo "Found sky130 in $path, using this installation..."
-+ export SKY130_SOURCE_PATH=$path
-+ FOUND=1
-+ fi
-+ done
-+ if [ "$FOUND" = "sky130" ]; then
-+ echo "Could not found sky130 in standard search paths, manually downloading to ../pdks/sky130 ..."
-+ pdk_find
-+ fi
-+ }
-+
- # Check whether --enable-sky130-sky130 was given.
- if test "${enable_sky130_pdk+set}" = set; then :
- enableval=$enable_sky130_pdk;
- if test "$enableval" == "yes" -o "$enableval" == "YES"; then
-- pdk_get
-+ pdk_find
- elif test "$enableval" == "no" -o "$enableval" == "NO"; then
- echo "Disabling sky130..."
- else
-@@ -1864,7 +1893,7 @@ if test "${enable_sky130_pdk+set}" = set; then :
-
- else
-
-- pdk_get
-+ pdk_find
-
-
- fi
-@@ -2455,7 +2484,7 @@ if ${am_cv_pathless_PYTHON+:} false; then :
- $as_echo_n "(cached) " >&6
- else
-
-- for am_cv_pathless_PYTHON in python python2 python3 python3.3 python3.2 python3.1 python3.0 python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 none; do
-+ for am_cv_pathless_PYTHON in python python2 python3 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0 python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 none; do
- test "$am_cv_pathless_PYTHON" = none && break
- prog="import sys
- # split strings by '.' and convert to numeric. Append some zeros
-@@ -2678,28 +2707,33 @@ $as_echo "$am_cv_python_pyexecdir" >&6; }
-
- if test -z $PYTHON;
- then
-- PYTHON="python"
-+ if test -z "";
-+ then
-+ PYTHON="python3"
-+ else
-+ PYTHON=""
-+ fi
- fi
- PYTHON_NAME=`basename $PYTHON`
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking $PYTHON_NAME module: distutils" >&5
- $as_echo_n "checking $PYTHON_NAME module: distutils... " >&6; }
-- $PYTHON -c "import distutils" 2>/dev/null
-- if test $? -eq 0;
-- then
-- { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-+ $PYTHON -c "import distutils" 2>/dev/null
-+ if test $? -eq 0;
-+ then
-+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
- $as_echo "yes" >&6; }
-- eval HAVE_PYMOD_DISTUTILS=yes
-- else
-- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-+ eval HAVE_PYMOD_DISTUTILS=yes
-+ else
-+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
- $as_echo "no" >&6; }
-- eval HAVE_PYMOD_DISTUTILS=no
-- #
-- if test -n ""
-- then
-- as_fn_error $? "failed to find required module distutils" "$LINENO" 5
-- exit 1
-- fi
-- fi
-+ eval HAVE_PYMOD_DISTUTILS=no
-+ #
-+ if test -n ""
-+ then
-+ as_fn_error $? "failed to find required module distutils" "$LINENO" 5
-+ exit 1
-+ fi
-+ fi
-
-
- # Check for "--with-ef-style"
-diff --git a/scripts/configure.ac b/scripts/configure.ac
-index 1c06fcf..03866fc 100755
---- a/scripts/configure.ac
-+++ b/scripts/configure.ac
-@@ -24,13 +24,15 @@ AC_DEFUN([M4_GEN_WITH_PDK_ARGS], [
- pdkvar[]_LINK_TARGETS="none"
-
- pdk_get() {
-- AC_CHECK_FILE(../pdk/[pdk]_url, [
-+ AC_CHECK_FILE(../pdk/[pdk]_info, [
- AC_CHECK_FILE(../pdks/pdk,[
- echo "Using pre-existing pdk download..."
- ], [
-- mkdir -p ../pdks/pdk
-- sh dl $(cat "../pdk/pdk_get") ../pdks/pdk.tar.gz;
-- (echo "Extracting pdk..." && cd ../pdks && tar -xf pdk.tar.gz --strip-components 1 -C ../pdks/pdk)
-+ REPO=$(cat "../pdk/pdk_info" | sed -n "1p")
-+ POST_CLONE_COMMANDS=$(cat "../pdk/pdk_info" | sed "1d")
-+ mkdir -p ../pdks
-+ git clone "$REPO" ../pdks/pdk;
-+ (cd ../pdks/pdk && sh -c "$POST_CLONE_COMMANDS")
- ])
- export pdkvar[]_SOURCE_PATH=../pdks/pdk
- ], [
-@@ -38,18 +40,33 @@ AC_DEFUN([M4_GEN_WITH_PDK_ARGS], [
- ])
- }
-
-+ pdk_find() {
-+ FOUND=0
-+ for path in /opt/pdks/pdk /usr/share/pdks/pdk /usr/local/share/pdks/pdk; do
-+ if @<:@ -d $path @:>@ ; then
-+ echo "Found pdk in $path, using this installation..."
-+ export pdkvar[]_SOURCE_PATH=$path
-+ FOUND=1
-+ fi
-+ done
-+ if @<:@ "$FOUND" = "$1" @:>@; then
-+ echo "Could not found pdk in standard search paths, manually downloading to ../pdks/pdk ..."
-+ pdk_find
-+ fi
-+ }
-+
- AC_ARG_ENABLE(pdk-[pdk],
- [AS_HELP_STRING([--enable-pdk-[pdk]=@<:@/path/to/pdk/@:>@ --disable-pdk-[pdk]], "location of the source files for the pdk (pdks with a [pdk]_url file can automatically download them if the path is omitted)")],
- [
- if test "$enableval" == "yes" -o "$enableval" == "YES"; then
-- pdk_get
-+ pdk_find
- elif test "$enableval" == "no" -o "$enableval" == "NO"; then
- echo "Disabling pdk..."
- else
- export pdkvar[]_SOURCE_PATH=$enableval
- fi
- ], [
-- pdk_get
-+ pdk_find
- ]
- )
- # # Require this argument
-diff --git a/scripts/download.sh b/scripts/download.sh
-new file mode 100755
-index 0000000..7623f32
---- /dev/null
-+++ b/scripts/download.sh
-@@ -0,0 +1,22 @@
-+#!/bin/sh
-+#
-+# Neither curl or wget are guaranteed to be included in all *nix systems,
-+# (but most have *one* of them). This tools tries its best to find one.
-+#
-+
-+DL_CMD=
-+if type "wget" > /dev/null; then
-+ DL_CMD="wget -qO"
-+fi
-+
-+if type "curl" > /dev/null; then
-+ DL_CMD="curl -sLo"
-+fi
-+
-+if [ "$DL_CMD" = "" ]; then
-+ echo "Either curl or wget are required to automatically install tools."
-+ exit 1
-+fi
-+
-+echo "Downloading $1 to $2..."
-+$DL_CMD $2 $1
-\ No newline at end of file
-diff --git a/sky130/pdk_info b/sky130/pdk_info
-new file mode 100644
-index 0000000..ee872cd
---- /dev/null
-+++ b/sky130/pdk_info
-@@ -0,0 +1,10 @@
-+https://github.com/google/skywater-pdk
-+
-+# Post Clone Commands
-+for i in $(git submodule | grep /latest | awk '{print $2}'); do
-+ git submodule init $i
-+done
-+
-+git submodule update
-+
-+make timing
-\ No newline at end of file
-diff --git a/sky130/pdk_url b/sky130/pdk_url
-deleted file mode 100644
-index 11a17e1..0000000
---- a/sky130/pdk_url
-+++ /dev/null
-@@ -1 +0,0 @@
--https://github.com/google/skywater-pdk/archive/master.tar.gz
-\ No newline at end of file
diff --git a/sky130/custom/scripts/generate_fill.py b/sky130/custom/scripts/generate_fill.py
new file mode 100755
index 0000000..9a1e3dc
--- /dev/null
+++ b/sky130/custom/scripts/generate_fill.py
@@ -0,0 +1,239 @@
+#!/bin/env python3
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# SPDX-License-Identifier: Apache-2.0
+
+#
+# generate_fill.py ---
+#
+# Run the fill generation on a layout top level.
+#
+
+import sys
+import os
+import re
+import subprocess
+
+def usage():
+ print("Usage:")
+ print("generate_fill.py <layout_name> [-keep] [-test]")
+ print("")
+ print("where:")
+ print(" <layout_name> is the path to the .mag file to be filled.")
+ print("")
+ print(" If '-keep' is specified, then keep the generation script.")
+ print(" If '-test' is specified, then create but do not run the generation script.")
+ return 0
+
+if __name__ == '__main__':
+
+ optionlist = []
+ arguments = []
+
+ debugmode = False
+ keepmode = False
+ testmode = False
+
+ for option in sys.argv[1:]:
+ if option.find('-', 0) == 0:
+ optionlist.append(option)
+ else:
+ arguments.append(option)
+
+ if len(arguments) != 1:
+ print("Wrong number of arguments given to generate_fill.py.")
+ usage()
+ sys.exit(1)
+
+ user_project_path = arguments[0]
+
+ magpath = os.path.split(user_project_path)[0]
+ if magpath == '':
+ magpath = os.getcwd()
+
+ if os.path.splitext(user_project_path)[1] != '.mag':
+ if os.path.splitext(user_project_path)[1] == '':
+ user_project_path += '.mag'
+ else:
+ print('Error: Project is not a magic database .mag file!')
+ sys.exit(1)
+
+ if not os.path.isfile(user_project_path):
+ print('Error: Project "' + user_project_path + '" does not exist or is not readable.')
+ sys.exit(1)
+
+ if '-debug' in optionlist:
+ debugmode = True
+ if '-keep' in optionlist:
+ keepmode = True
+ if '-test' in optionlist:
+ testmode = True
+
+ rcfile = magpath + '/.magicrc'
+ if not os.path.isfile(rcfile):
+ rcfile = None
+
+ project = os.path.splitext(os.path.split(user_project_path)[1])[0]
+
+ topdir = os.path.split(magpath)[0]
+ gdsdir = topdir + '/gds'
+ hasgdsdir = True if os.path.isdir(gdsdir) else False
+
+ with open(magpath + '/generate_fill.tcl', 'w') as ofile:
+ print('#!/bin/env wish', file=ofile)
+ print('drc off', file=ofile)
+ print('tech unlock *', file=ofile)
+ print('snap internal', file=ofile)
+ print('box values 0 0 0 0', file=ofile)
+ print('box size 700um 700um', file=ofile)
+ print('set stepbox [box values]', file=ofile)
+ print('set stepwidth [lindex $stepbox 2]', file=ofile)
+ print('set stepheight [lindex $stepbox 3]', file=ofile)
+ print('', file=ofile)
+ print('set starttime [orig_clock format [orig_clock seconds] -format "%D %T"]', file=ofile)
+ print('puts stdout "Started: $starttime"', file=ofile)
+ print('', file=ofile)
+ print('load ' + project + ' -dereference', file=ofile)
+ print('select top cell', file=ofile)
+ print('expand', file=ofile)
+ print('cif ostyle wafflefill(tiled)', file=ofile)
+ print('', file=ofile)
+ print('set fullbox [box values]', file=ofile)
+ print('set xmax [lindex $fullbox 2]', file=ofile)
+ print('set xmin [lindex $fullbox 0]', file=ofile)
+ print('set fullwidth [expr {$xmax - $xmin}]', file=ofile)
+ print('set xtiles [expr {int(ceil($fullwidth / $stepwidth))}]', file=ofile)
+ print('set ymax [lindex $fullbox 3]', file=ofile)
+ print('set ymin [lindex $fullbox 1]', file=ofile)
+ print('set fullheight [expr {$ymax - $ymin}]', file=ofile)
+ print('set ytiles [expr {int(ceil($fullheight / $stepheight))}]', file=ofile)
+ print('box size $stepwidth $stepheight', file=ofile)
+ print('set xbase [lindex $fullbox 0]', file=ofile)
+ print('set ybase [lindex $fullbox 1]', file=ofile)
+ print('', file=ofile)
+
+ # Break layout into tiles and process each separately
+ print('for {set y 0} {$y < $ytiles} {incr y} {', file=ofile)
+ print(' for {set x 0} {$x < $xtiles} {incr x} {', file=ofile)
+ print(' set xlo [expr $xbase + $x * $stepwidth]', file=ofile)
+ print(' set ylo [expr $ybase + $y * $stepheight]', file=ofile)
+ print(' set xhi [expr $xlo + $stepwidth]', file=ofile)
+ print(' set yhi [expr $ylo + $stepheight]', file=ofile)
+ print(' box values $xlo $ylo $xhi $yhi', file=ofile)
+ # The flattened area must be larger than the fill tile by >1.5um
+ print(' box grow c 1.6um', file=ofile)
+
+ # Flatten into a cell with a new name
+ print(' puts stdout "Flattening layout of tile x=$x y=$y. . . "', file=ofile)
+ print(' flush stdout', file=ofile)
+ print(' update idletasks', file=ofile)
+ print(' flatten -dobox -nolabels ' + project + '_fill_pattern_${x}_$y', file=ofile)
+ print(' load ' + project + '_fill_pattern_${x}_$y', file=ofile)
+
+ # Remove any GDS_FILE reference
+ print(' property GDS_FILE ""', file=ofile)
+ # Set boundary using comment layer, to the size of the step box
+ print(' box values $xlo $ylo $xhi $yhi', file=ofile)
+ print(' paint comment', file=ofile)
+ print(' puts stdout "Writing GDS. . . "', file=ofile)
+ print(' flush stdout', file=ofile)
+ print(' update idletasks', file=ofile)
+ print(' gds write ' + project + '_fill_pattern_${x}_$y.gds', file=ofile)
+
+ # Reload project top
+ print(' load ' + project, file=ofile)
+
+ # Remove last generated cell to save memory
+ print(' cellname delete ' + project + '_fill_pattern_${x}_$y', file=ofile)
+
+ print(' }', file=ofile)
+ print('}', file=ofile)
+
+ # Now create simple "fake" views of all the tiles.
+ print('gds readonly true')
+ print('gds rescale false')
+ print('for {set y 0} {$y < $ytiles} {incr y} {', file=ofile)
+ print(' for {set x 0} {$x < $xtiles} {incr x} {', file=ofile)
+ print(' set xlo [expr $xbase + $x * $stepwidth]', file=ofile)
+ print(' set ylo [expr $ybase + $y * $stepheight]', file=ofile)
+ print(' set xhi [expr $xlo + $stepwidth]', file=ofile)
+ print(' set yhi [expr $ylo + $stepheight]', file=ofile)
+ print(' load ' + project + '_fill_pattern_${x}_$y', file=ofile)
+ print(' box values $xlo $ylo $xhi $yhi', file=ofile)
+ print(' paint comment', file=ofile)
+ print(' property FIXED_BBOX "$xlo $ylo $xhi $yhi"', file=ofile)
+ print(' property GDS_FILE ' + project + '_fill_pattern_${x}_${y}.gds', file=ofile)
+ print(' property GDS_START 0', file=ofile)
+ print(' }', file=ofile)
+ print('}', file=ofile)
+
+ # Now tile everything back together
+ print('load ' + project + '_fill_pattern', file=ofile)
+ print('for {set y 0} {$y < $ytiles} {incr y} {', file=ofile)
+ print(' for {set x 0} {$x < $xtiles} {incr x} {', file=ofile)
+ print(' box values 0 0 0 0', file=ofile)
+ print(' getcell ' + project + '_fill_pattern_${x}_$y child 0 0', file=ofile)
+ print(' }', file=ofile)
+ print('}', file=ofile)
+
+ # And write final GDS
+ print('puts stdout "Writing final GDS"', file=ofile)
+
+ print('cif *hier write disable', file=ofile)
+ print('cif *array write disable', file=ofile)
+ if hasgdsdir:
+ print('gds write ../gds/' + project + '_fill_pattern.gds', file=ofile)
+ else:
+ print('gds write ' + project + '_fill_pattern.gds', file=ofile)
+ print('set endtime [orig_clock format [orig_clock seconds] -format "%D %T"]', file=ofile)
+ print('puts stdout "Ended: $endtime"', file=ofile)
+ print('quit -noprompt', file=ofile)
+ myenv = os.environ.copy()
+ myenv['MAGTYPE'] = 'mag'
+
+ if not testmode:
+ # Diagnostic
+ # print('This script will generate file ' + project + '_fill_pattern.gds')
+ print('This script will generate files ' + project + '_fill_pattern_x_y.gds')
+ print('Now generating fill patterns. This may take. . . quite. . . a while.', flush=True)
+ mproc = subprocess.run(['magic', '-dnull', '-noconsole',
+ '-rcfile', rcfile, magpath + '/generate_fill.tcl'],
+ stdin = subprocess.DEVNULL,
+ stdout = subprocess.PIPE,
+ stderr = subprocess.PIPE,
+ cwd = magpath,
+ env = myenv,
+ universal_newlines = True)
+ if mproc.stdout:
+ for line in mproc.stdout.splitlines():
+ print(line)
+ if mproc.stderr:
+ print('Error message output from magic:')
+ for line in mproc.stderr.splitlines():
+ print(line)
+ if mproc.returncode != 0:
+ print('ERROR: Magic exited with status ' + str(mproc.returncode))
+
+ if not keepmode:
+ # Remove fill generation script
+ os.remove(magpath + '/generate_fill.tcl')
+ # Remove all individual fill tiles, leaving only the composite GDS.
+ filelist = os.listdir(magpath)
+ for file in filelist:
+ if os.path.splitext(magpath + '/' + file)[1] == '.gds':
+ if file.startswith(project + '_fill_pattern_')
+ os.remove(magpath + '/' + file
+
+ print('Done!')
+ exit(0)
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 95fc2f4..67047b2 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -1707,7 +1707,7 @@
#endif (EXPERIMENTAL)
#----------------------------------------------------------------
-style wafflefill
+style wafflefill variants (),(tiled)
#----------------------------------------------------------------
# Style used by scripts for automatically generating fill layers
# NOTE: Be sure to generate output on flattened layout.
@@ -1717,10 +1717,30 @@
gridlimit 5
#----------------------------------------------------------------
-# Generate and retain a layer representing the bounding box
+# Generate and retain a layer representing the bounding box.
+#
+# For variant ():
+# The bounding box is the full extent of geometry on the top level
+# cell.
+#
+# For variant (tiled):
+# Use with a script that breaks layout into flattened tiles and runs
+# fill individually on each. The tiles should be larger than the
+# step size, and each should draw a layer "comment" the size of the
+# step box.
#----------------------------------------------------------------
- templayer topbox
- bbox top
+
+ variants ()
+ templayer topbox
+ bbox top
+
+ variants (tiled)
+ templayer topbox comment
+ # Each tile imposes the full keepout distance rule of
+ # 3um on all sides.
+ shrink 1500
+
+ variants *
#----------------------------------------------------------------
# Generate guard-band around nwells to keep FOM from crossing
@@ -1732,25 +1752,27 @@
templayer mvnwell
bloat-all alldiffmv nwell
- templayer lvnwell nwell
+ templayer lvnwell allnwell
and-not mvnwell
templayer well_shrink mvnwell
shrink 250
or lvnwell
shrink 180
- templayer well_guardband nwell
+ templayer well_guardband allnwell
grow 340
and-not well_shrink
#---------------------------------------------------
# Diffusion and poly keep-out areas
#---------------------------------------------------
- templayer obstruct_fom alldiff,allpoly,rpw
+ templayer obstruct_fom alldiff,allpoly,fomfill,polyfill,obspoly,obsactive
+ or rpw,pnp,npn
grow 500
or well_guardband
- templayer obstruct_poly alldiff,allpoly,rpw
+ templayer obstruct_poly alldiff,allpolyfomfill,polyfill,obspoly,obsactive
+ or rpw,pnp,npn
grow 1000
#---------------------------------------------------
@@ -2045,6 +2067,7 @@
templayer met4fill_medium topbox
slots 0 1000 300 0 1000 300 700 1050
and-not obstruct_m4_medium
+ and topbox
shrink 495
grow 495
