[reggen] Ensure that countermeasure names are unique
Signed-off-by: Michael Schaffner <msf@opentitan.org>
diff --git a/util/reggen/ip_block.py b/util/reggen/ip_block.py
index 391820a..1b1bc9f 100644
--- a/util/reggen/ip_block.py
+++ b/util/reggen/ip_block.py
@@ -166,11 +166,19 @@
alerts = Alert.from_raw_list('alert_list for block {}'
.format(name),
rd.get('alert_list', []))
+ known_cms = {}
+ raw_cms = rd.get('countermeasures', [])
countermeasures = CounterMeasure.from_raw_list(
'countermeasure list for block {}'
- .format(name),
- rd.get('countermeasures', []))
+ .format(name), raw_cms)
+
+ # Ensure that the countermeasures are unique
+ for x in countermeasures:
+ if str(x) in known_cms:
+ raise RuntimeError(f"Duplicate countermeasure {str(x)}")
+ else:
+ known_cms.update({str(x): 1})
no_auto_intr = check_bool(rd.get('no_auto_intr_regs', not interrupts),
'no_auto_intr_regs field of ' + what)
