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-rw-r--r--icebox/Makefile2
-rwxr-xr-xicebox/icebox_colbuf.py140
2 files changed, 142 insertions, 0 deletions
diff --git a/icebox/Makefile b/icebox/Makefile
index 5cd9b76..cc78073 100644
--- a/icebox/Makefile
+++ b/icebox/Makefile
@@ -23,6 +23,7 @@ install: all
cp icebox_chipdb.py $(DESTDIR)/bin/icebox_chipdb
cp icebox_diff.py $(DESTDIR)/bin/icebox_diff
cp icebox_explain.py $(DESTDIR)/bin/icebox_explain
+ cp icebox_colbuf.py $(DESTDIR)/bin/icebox_colbuf
cp icebox_html.py $(DESTDIR)/bin/icebox_html
cp icebox_maps.py $(DESTDIR)/bin/icebox_maps
cp icebox_vlog.py $(DESTDIR)/bin/icebox_vlog
@@ -33,6 +34,7 @@ uninstall:
rm -f $(DESTDIR)/bin/icebox_chipdb
rm -f $(DESTDIR)/bin/icebox_diff
rm -f $(DESTDIR)/bin/icebox_explain
+ rm -f $(DESTDIR)/bin/icebox_colbuf
rm -f $(DESTDIR)/bin/icebox_html
rm -f $(DESTDIR)/bin/icebox_maps
rm -f $(DESTDIR)/bin/icebox_vlog
diff --git a/icebox/icebox_colbuf.py b/icebox/icebox_colbuf.py
new file mode 100755
index 0000000..8d1ac3b
--- /dev/null
+++ b/icebox/icebox_colbuf.py
@@ -0,0 +1,140 @@
+#!/usr/bin/python2
+#
+# Copyright (C) 2015 Clifford Wolf <clifford@clifford.at>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+
+from __future__ import division
+from __future__ import print_function
+
+import icebox
+import getopt, sys, re
+
+check_mode = False
+fixup_mode = False
+
+def usage():
+ print("""
+Usage: icebox_colbuf [options] [bitmap.txt]
+
+ -c
+ check colbuf bits
+
+ -f
+ fix colbuf bits
+""")
+ sys.exit(1)
+
+try:
+ opts, args = getopt.getopt(sys.argv[1:], "cf")
+except:
+ usage()
+
+for o, a in opts:
+ if o == "-c":
+ check_mode = True
+ elif o == "-f":
+ fixup_mode = True
+ else:
+ usage()
+
+if len(args) == 0:
+ args.append("/dev/stdin")
+
+if len(args) != 1:
+ usage()
+
+if check_mode == fixup_mode:
+ print("Error: Use either -c or -f!")
+ sys.exit(1)
+
+print("Reading file '%s'.." % args[0])
+ic = icebox.iceconfig()
+ic.read_file(args[0])
+
+def make_cache(stmt, raw_db):
+ cache = list()
+ for entry in raw_db:
+ if entry[1] == stmt and entry[2].startswith("glb_netwk_"):
+ cache_entry = [int(entry[2][-1]), []]
+ for bit in entry[0]:
+ value = "1"
+ if bit.startswith("!"):
+ value = "0"
+ bit = bit[1:]
+ match = re.match("B([0-9]+)\[([0-9]+)\]", bit)
+ cache_entry[1].append((int(match.group(1)), int(match.group(2)), value))
+ cache.append(cache_entry)
+ return cache
+
+def match_cache_entry(cache_entry, tile_dat):
+ for entry in cache_entry[1]:
+ if tile_dat[entry[0]][entry[1]] != entry[2]:
+ return False
+ return True
+
+def analyze_tile(ic, cache, tile_pos):
+ glbs = set()
+ tile_dat = ic.tile(tile_pos[0], tile_pos[1])
+ for cache_entry in cache:
+ if match_cache_entry(cache_entry, tile_dat):
+ glbs.add(cache_entry[0])
+ return glbs
+
+colbuf_map = dict()
+used_glbs_map = dict()
+driven_glbs_map = dict()
+
+for entry in ic.colbuf_db():
+ colbuf_map[(entry[2], entry[3])] = (entry[0], entry[1])
+
+for tiles in [ic.io_tiles, ic.logic_tiles, ic.ramb_tiles, ic.ramt_tiles]:
+ cache = None
+ for tile in tiles:
+ if cache is None:
+ cache = make_cache("buffer", ic.tile_db(tile[0], tile[1]))
+ glbs = analyze_tile(ic, cache, tile)
+ if len(glbs):
+ assert tile in colbuf_map
+ used_glbs_map[colbuf_map[tile]] = glbs
+
+ cache = None
+ for tile in tiles:
+ if cache is None:
+ cache = make_cache("ColBufCtrl", ic.tile_db(tile[0], tile[1]))
+ glbs = analyze_tile(ic, cache, tile)
+ if len(glbs):
+ driven_glbs_map[tile] = glbs
+
+if check_mode:
+ error_count = 0
+ for tile, bits in used_glbs_map.items():
+ for bit in bits:
+ if tile not in driven_glbs_map or bit not in driven_glbs_map[tile]:
+ print("Missing driver for glb_netwk_%d in tile %s" % (bit, tile))
+ error_count += 1
+ for tile, bits in driven_glbs_map.items():
+ for bit in bits:
+ if tile not in used_glbs_map or bit not in used_glbs_map[tile]:
+ print("Unused driver for glb_netwk_%d in tile %s" % (bit, tile))
+ error_count += 1
+ if error_count != 0:
+ print("Found %d errors!" % error_count)
+ sys.exit(1)
+ print("No errors found.")
+
+if fixup_mode:
+ print("Error: Fixup mode is not implemented yet!")
+ sys.exit(1)
+