1 files changed, 72 insertions, 1 deletions
diff --git a/src/mem/cache/tags/base.cc b/src/mem/cache/tags/base.cc
index c7ea17bd1..13e1245c6 100644
--- a/src/mem/cache/tags/base.cc
+++ b/src/mem/cache/tags/base.cc
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013,2016 ARM Limited
+ * Copyright (c) 2013,2016,2018 ARM Limited
  * All rights reserved.
  *
  * The license below extends only to copyright in the software and shall
@@ -111,6 +111,77 @@ BaseTags::insertBlock(PacketPtr pkt, CacheBlk *blk)
 }
 
 void
+BaseTags::cleanupRefsVisitor(CacheBlk &blk)
+{
+    if (blk.isValid()) {
+        totalRefs += blk.refCount;
+        ++sampledRefs;
+    }
+}
+
+void
+BaseTags::cleanupRefs()
+{
+    forEachBlk([this](CacheBlk &blk) { cleanupRefsVisitor(blk); });
+}
+
+void
+BaseTags::computeStatsVisitor(CacheBlk &blk)
+{
+    if (blk.isValid()) {
+        assert(blk.task_id < ContextSwitchTaskId::NumTaskId);
+        occupanciesTaskId[blk.task_id]++;
+        assert(blk.tickInserted <= curTick());
+        Tick age = curTick() - blk.tickInserted;
+
+        int age_index;
+        if (age / SimClock::Int::us < 10) { // <10us
+            age_index = 0;
+        } else if (age / SimClock::Int::us < 100) { // <100us
+            age_index = 1;
+        } else if (age / SimClock::Int::ms < 1) { // <1ms
+            age_index = 2;
+        } else if (age / SimClock::Int::ms < 10) { // <10ms
+            age_index = 3;
+        } else
+            age_index = 4; // >10ms
+
+        ageTaskId[blk.task_id][age_index]++;
+    }
+}
+
+void
+BaseTags::computeStats()
+{
+    for (unsigned i = 0; i < ContextSwitchTaskId::NumTaskId; ++i) {
+        occupanciesTaskId[i] = 0;
+        for (unsigned j = 0; j < 5; ++j) {
+            ageTaskId[i][j] = 0;
+        }
+    }
+
+    forEachBlk([this](CacheBlk &blk) { computeStatsVisitor(blk); });
+}
+
+std::string
+BaseTags::print()
+{
+    std::string str;
+
+    auto print_blk = [&str](CacheBlk &blk) {
+        if (blk.isValid())
+            str += csprintf("\tset: %d way: %d %s\n", blk.set, blk.way,
+                            blk.print());
+    };
+    forEachBlk(print_blk);
+
+    if (str.empty())
+        str = "no valid tags\n";
+
+    return str;
+}
+
+void
 BaseTags::regStats()
 {
     ClockedObject::regStats();