mem: Remove templates in cache model

This patch changes the cache implementation to rely on virtual methods
rather than using the replacement policy as a template argument.

There is no impact on the simulation performance, and overall the
changes make it easier to modify (and subclass) the cache and/or
replacement policy.

1 files changed, 1 insertions, 15 deletions

diff --git a/src/mem/cache/base.cc b/src/mem/cache/base.cc
index b474aeedc..a2443eaad 100644
--- a/src/mem/cache/base.cc
+++ b/src/mem/cache/base.cc
@@ -783,21 +783,7 @@ BaseCache::drain(DrainManager *dm)
 BaseCache *
 BaseCacheParams::create()
 {
-    unsigned numSets = size / (assoc * system->cacheLineSize());
-
     assert(tags);
 
-    if (dynamic_cast<FALRU*>(tags)) {
-        if (numSets != 1)
-            fatal("Got FALRU tags with more than one set\n");
-        return new Cache<FALRU>(this);
-    } else if (dynamic_cast<LRU*>(tags)) {
-        if (numSets == 1)
-            warn("Consider using FALRU tags for a fully associative cache\n");
-        return new Cache<LRU>(this);
-    } else if (dynamic_cast<RandomRepl*>(tags)) {
-        return new Cache<RandomRepl>(this);
-    } else {
-        fatal("No suitable tags selected\n");
-    }
+    return new Cache(this);
 }