final gds & drc results
diff --git a/scripts/generate_fill.py b/scripts/generate_fill.py
index 6b4cbcd..97e8141 100755
--- a/scripts/generate_fill.py
+++ b/scripts/generate_fill.py
@@ -1,4 +1,4 @@
-#!/bin/env python3
+#!/usr/bin/env python3
# SPDX-FileCopyrightText: 2020 Efabless Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
@@ -17,7 +17,7 @@
#
# generate_fill.py ---
#
-# Run the fill generation on the caravel top level.
+# Run the fill generation on a layout top level.
#
import sys
@@ -26,20 +26,25 @@
import subprocess
def usage():
- print("generate_fill.py [layout_name] [-keep]")
+ print("Usage:")
+ print("generate_fill.py [<path_to_project>] [-keep] [-test]")
+ print("")
+ print("where:")
+ print(" <path_to_project> is the path to the project top level directory.")
+ print("")
+ print(" If <path_to_project> is not given, then it is assumed to be the cwd.")
+ 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__':
- if len(sys.argv) == 1:
- usage()
- sys.exit(0)
-
optionlist = []
arguments = []
debugmode = False
keepmode = False
+ testmode = False
for option in sys.argv[1:]:
if option.find('-', 0) == 0:
@@ -50,62 +55,212 @@
if len(arguments) > 1:
print("Wrong number of arguments given to generate_fill.py.")
usage()
- sys.exit(0)
+ sys.exit(1)
if len(arguments) == 1:
- project = arguments[0]
+ user_project_path = arguments[0]
else:
- project = 'caravel'
+ user_project_path = os.getcwd()
+
+ if not os.path.isdir(user_project_path):
+ print('Error: Project path "' + user_project_path + '" does not exist or is not readable.')
+ sys.exit(1)
+
+ # Check for valid user ID
+ user_id_value = None
+ if os.path.isfile(user_project_path + '/info.yaml'):
+ with open(user_project_path + '/info.yaml', 'r') as ifile:
+ infolines = ifile.read().splitlines()
+ for line in infolines:
+ kvpair = line.split(':')
+ if len(kvpair) == 2:
+ key = kvpair[0].strip()
+ value = kvpair[1].strip()
+ if key == 'project_id':
+ user_id_value = value.strip('"\'')
+ break
+
+ project = 'caravel'
+ if user_id_value:
+ project_with_id = project + '_' + user_id_value
+ else:
+ print('Error: No project_id found in info.yaml file.')
+ sys.exit(1)
if '-debug' in optionlist:
debugmode = True
if '-keep' in optionlist:
keepmode = True
+ if '-test' in optionlist:
+ testmode = True
- magdir = '../mag'
- rcfile = magdir + '/.magicrc'
+ magpath = user_project_path + '/mag'
+ rcfile = magpath + '/.magicrc'
- with open(magdir + '/generate_fill.tcl', 'w') as ofile:
+ if not os.path.isfile(rcfile):
+ rcfile = None
+
+ topdir = user_project_path
+ 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('load ' + project + ' -dereference', 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)
+ # Read the user project from GDS, as there is not necessarily a magic database file
+ # to go along with this.
+ # print('gds read ../gds/user_project_wrapper', file=ofile)
+ # Now read the full caravel project
+ # print('load ' + project + ' -dereference', file=ofile)
+ print('gds readonly true', file=ofile)
+ print('gds rescale false', file=ofile)
+ print('gds read ../gds/caravel', 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 + 0.0) / $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 + 0.0) / $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 + $stepheight]', file=ofile)
+ print(' if {$xhi > $fullwidth} {set xhi $fullwidth}', file=ofile)
+ print(' if {$yhi > $fullheight} {set yhi $fullheight}', file=ofile)
+ print(' box values $xlo $ylo $xhi $yhi', file=ofile)
+ # The flattened area must be larger than the fill tile by >1.5um
+ print(' box grow c 1.6um', file=ofile)
# Flatten into a cell with a new name
- print('puts stdout "Flattening layout. . . "', file=ofile)
- print('flatten -nolabels ' + project + '_fill_pattern', file=ofile)
- print('load ' + project + '_fill_pattern', file=ofile)
+ print(' puts stdout "Flattening layout of tile x=$x y=$y. . . "', file=ofile)
+ print(' flush stdout', file=ofile)
+ print(' update idletasks', file=ofile)
+ print(' flatten -dobox -nolabels ' + project_with_id + '_fill_pattern_${x}_$y', file=ofile)
+ print(' load ' + project_with_id + '_fill_pattern_${x}_$y', file=ofile)
- # Remove any GDS_FILE reference
- print('property GDS_FILE ""', file=ofile)
- print('cif ostyle wafflefill', file=ofile)
- print('puts stdout "Writing GDS. . . "', file=ofile)
- print('gds write ../gds/' + project + '_fill_pattern.gds', file=ofile)
+ # Remove any GDS_FILE reference (there should not be any?)
+ print(' property GDS_FILE ""', file=ofile)
+ # Set boundary using comment layer, to the size of the step box
+ # This corresponds to the "topbox" rule in the wafflefill(tiled) style
+ print(' select top cell', file=ofile)
+ print(' erase comment', file=ofile)
+ print(' box values $xlo $ylo $xhi $yhi', file=ofile)
+ print(' paint comment', file=ofile)
+ print(' puts stdout "Writing GDS. . . "', file=ofile)
+ print(' flush stdout', file=ofile)
+ print(' update idletasks', file=ofile)
+ print(' gds write ' + project_with_id + '_fill_pattern_${x}_$y.gds', file=ofile)
+
+ # Reload project top
+ print(' load ' + project, file=ofile)
+
+ # Remove last generated cell to save memory
+ print(' cellname delete ' + project_with_id + '_fill_pattern_${x}_$y', file=ofile)
+
+ print(' }', file=ofile)
+ print('}', file=ofile)
+
+ # Now create simple "fake" views of all the tiles.
+ print('gds readonly true', file=ofile)
+ print('gds rescale false', file=ofile)
+ print('for {set y 0} {$y < $ytiles} {incr y} {', file=ofile)
+ print(' for {set x 0} {$x < $xtiles} {incr x} {', file=ofile)
+ print(' 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 + $stepheight]', file=ofile)
+ print(' load ' + project_with_id + '_fill_pattern_${x}_$y -quiet', file=ofile)
+ print(' box values $xlo $ylo $xhi $yhi', file=ofile)
+ print(' paint comment', file=ofile)
+ print(' property FIXED_BBOX "$xlo $ylo $xhi $yhi"', file=ofile)
+ print(' property GDS_FILE ' + project_with_id + '_fill_pattern_${x}_${y}.gds', file=ofile)
+ print(' property GDS_START 0', file=ofile)
+ print(' }', file=ofile)
+ print('}', file=ofile)
+
+ # Now tile everything back together
+ print('load ' + project_with_id + '_fill_pattern -quiet', file=ofile)
+ print('for {set y 0} {$y < $ytiles} {incr y} {', file=ofile)
+ print(' for {set x 0} {$x < $xtiles} {incr x} {', file=ofile)
+ print(' box values 0 0 0 0', file=ofile)
+ print(' getcell ' + project_with_id + '_fill_pattern_${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_with_id + '_fill_pattern.gds', file=ofile)
+ else:
+ print('gds write ' + project_with_id + '_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'
- mproc = subprocess.run(['magic', '-dnull', '-noconsole',
- '-rcfile', rcfile, magdir + '/generate_fill.tcl'],
+ if not testmode:
+ # Diagnostic
+ # print('This script will generate file ' + project_with_id + '_fill_pattern.gds')
+ print('This script will generate files ' + project_with_id + '_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 = magdir,
+ 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 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:
- os.remove(magdir + '/generate_fill.tcl')
+ # 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)
