base: Add print when inserting/evicting an AssociativeCache entry

We are adding two debug prints in the AssociativeCache:

1) Inserting print
2) Evicting print

Among those, the evicting one is probably the most important
This is because while the DPRINTF can be added in the
Entry::insert implementation (called during insertion),
the AssociativeCache does not reference any evict method.
Instead, the findVictim is transparently invalidating the
victim, which makes it impossible for the client code
to understand whether the victim was a valid
entry or not.

Change-Id: I4fee59cc63c6b0e14c5b02bcf3ba5f58aa21ef9f
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>

src/base/cache/associative_cache.hh

@@ -232,6 +232,12 @@ class AssociativeCache : public Named
 
         auto victim = static_cast<Entry*>(replPolicy->getVictim(candidates));
 
+        if (debugFlag && debugFlag->tracing() && victim->isValid()) {
+            ::gem5::trace::getDebugLogger()->dprintf_flag(
+                curTick(), name(), debugFlag->name(),
+                "Replacing entry: %s\n", victim->print());
+        }
+
         invalidate(victim);
 
         return victim;
@@ -257,6 +263,12 @@ class AssociativeCache : public Named
     virtual void
     insertEntry(const KeyType &key, Entry *entry)
     {
+        if (debugFlag && debugFlag->tracing()) {
+            ::gem5::trace::getDebugLogger()->dprintf_flag(
+                curTick(), name(), debugFlag->name(),
+                "Inserting entry: %s\n", entry->print());
+        }
+
         entry->insert(key);
         replPolicy->reset(entry->replacementData);
     }