mem-cache: Move tagsInUse to children

Move tagsInUse to children, as sector caches have different
tag invalidation and insertion, and thus they must handle
updating this variable.

Change-Id: I875c9b7364a909c76daf610d1e226c4e82063870
Reviewed-on: https://gem5-review.googlesource.com/10721
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/mem/cache/tags/fa_lru.cc b/src/mem/cache/tags/fa_lru.cc
index 8eab62845..b5950f6cf 100644
--- a/src/mem/cache/tags/fa_lru.cc
+++ b/src/mem/cache/tags/fa_lru.cc
@@ -122,6 +122,9 @@ FALRU::invalidate(CacheBlk *blk)
 {
     BaseTags::invalidate(blk);
 
+    // Decrease the number of tags in use
+    tagsInUse--;
+
     // Move the block to the tail to make it the next victim
     moveToTail((FALRUBlk*)blk);
 
@@ -169,7 +172,6 @@ FALRU::accessBlock(Addr addr, bool is_secure, Cycles &lat,
     return blk;
 }
 
-
 CacheBlk*
 FALRU::findBlock(Addr addr, bool is_secure) const
 {
@@ -215,6 +217,9 @@ FALRU::insertBlock(PacketPtr pkt, CacheBlk *blk)
     // Do common block insertion functionality
     BaseTags::insertBlock(pkt, blk);
 
+    // Increment tag counter
+    tagsInUse++;
+
     // New block is the MRU
     moveToHead(falruBlk);