From 5060dae1be076723b37a6f5b2e419e4ce51fe6a5 Mon Sep 17 00:00:00 2001
From: John McMaster <johndmcmaster@gmail.com>
Date: Mon, 10 Dec 2018 11:22:40 -0800
Subject: [PATCH] checkdb: check all .db files

Signed-off-by: John McMaster <johndmcmaster@gmail.com>
---
 utils/checkdb.py | 107 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 utils/checkdb.py

diff --git a/utils/checkdb.py b/utils/checkdb.py
new file mode 100644
index 00000000..29bae1b4
--- /dev/null
+++ b/utils/checkdb.py
@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+
+'''
+Check:
+-Individual files are valid
+-No overlap between any tile
+'''
+
+import sys, re
+from prjxray import util
+import parsedb
+#from prjxray import db as prjxraydb
+import glob
+
+
+def parsedb_all(db_root, verbose=False):
+    '''Verify .db files are individually valid'''
+
+    for bit_fn in glob.glob('%s/segbits_*.db'):
+        parsedb.run(bit_fn, fnout=None, strict=True, verbose=verbose)
+
+    for bit_fn in glob.glob('%s/mask_*.db'):
+        parsedb.run(bit_fn, fnout=None, strict=True, verbose=verbose)
+
+def process_db(tile_type, process, verbose):
+    #ttdb = db.get_tile_type(tile_type)
+
+    fns = [ttdb.tile_dbs.segbits, ttdb.tile_dbs.ppips]
+    verbose and print("process_db(%s): %s" % (tile_type, fns))
+    for fn in fns:
+        if fn:
+            with open(fn, "r") as f:
+                for line in f:
+                    process(util.parse_db_line(line))
+
+
+def check_seg_overlap(db_root, verbose=False):
+    '''
+    Assume .db files are individually valid
+    Create a mask for all the bits the tile type uses
+    For each tile, create bitmasks over the entire bitstream for current part
+    Throw an exception if two tiles share an address
+    '''
+    # key: (address, bit index)
+    # val: sample description of where it came from (there may be multiple, only one)
+    used = dict()
+
+    tiles_checked = 0
+    for tile_name, tile in db.tilegrid.items():
+        #ttdb = db.get_tile_type(tile["type"])
+        # FIXME: check BRAM
+        bitj = tile["bits"].get("CLB_IO_CLK", None)
+        if not bitj:
+            continue
+        verbose and print("Checking %s, type %s" % (tile_name, tile["type"]))
+        baseaddr = int(bitj["baseaddr"], 0)
+        bitbase = 32 * bitj["offset"]
+
+        # Create tile mask
+        tile_used = dict()
+        def process(lparse):
+            tag, bits, mode = lparse
+            assert mode is None
+            for (bit_addroff, bit_bitoff) in bits:
+                tile_used[(baseaddr + bit_addroff, bitbase + bit_bitoff)] = "%s.%s" % (tile_name, tag)
+        process_db(tile["type"], process, verbose=verbose)
+
+        # See if tile mask intersects any existing bits
+        for (waddr, bitaddr), tile_desc in tile_used.items():
+            used_desc = used.get((waddr, bitaddr), None)
+            if used_desc:
+                raise ValueError("Collision at %08X:%04X: had %s, got %s" % (waddr, bitaddr, used_desc, tile_desc))
+            used[(waddr, bitaddr)] = tile_desc
+        tiles_checked += 1
+    print("Checked %s tiles, %s bits" % tiles_checked, len(used))
+
+
+def run(db_root, verbose=False):
+    # Start by running a basic check on db files
+    parsedb_all(db_root, verbose=verbose)
+
+    '''
+    # Now load and verify tile consistency
+    db = prjxraydb.Database(db_root)
+    db._read_tilegrid()
+    db._read_tile_types()
+    print(db.tile_types.keys())
+    '''
+
+    check_seg_overlap(db_root, verbose=verbose)
+
+
+def main():
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        description="Parse a db repository, checking for consistency")
+
+    util.db_root_arg(parser)
+    parser.add_argument('--verbose', action='store_true', help='')
+    args = parser.parse_args()
+
+    run(args.db_root, verbose=args.verbose)
+
+
+if __name__ == '__main__':
+    main()