mem-cache: Remove isTouched field from the CacheBlk

At the moment isTouched is used in the warm-up detection mechanism but
it keeps track of the same information as isValid(). This change
removes it and substitutes its use by isValid().

Change-Id: I611ddf2fa4562ae3b3b2ed2fb74d26abd2e5ec62
Reviewed-on: https://gem5-review.googlesource.com/10427
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>

1 files changed, 0 insertions, 7 deletions

diff --git a/src/mem/cache/blk.hh b/src/mem/cache/blk.hh
index b634d21f1..561d50282 100644
--- a/src/mem/cache/blk.hh
+++ b/src/mem/cache/blk.hh
@@ -109,12 +109,6 @@ class CacheBlk : public ReplaceableEntry
      */
     int set, way;
 
-    /**
-     * Whether this block has been touched since simulation started.
-     * Used to calculate number of used tags.
-     */
-    bool isTouched;
-
     /** Number of references to this block since it was brought in. */
     unsigned refCount;
 
@@ -217,7 +211,6 @@ class CacheBlk : public ReplaceableEntry
         task_id = ContextSwitchTaskId::Unknown;
         status = 0;
         whenReady = MaxTick;
-        isTouched = false;
         refCount = 0;
         srcMasterId = Request::invldMasterId;
         tickInserted = MaxTick;