mem: Remove redundant findVictim() input argument

The patch
(1) removes the redundant writeback argument from findVictim()
(2) fixes the description of access() function

Committed by: Nilay Vaish <nilay@cs.wisc.edu>

src/mem/cache/cache.hh

@@ -195,9 +195,9 @@ class Cache : public BaseCache
     /**
      * Does all the processing necessary to perform the provided request.
      * @param pkt The memory request to perform.
+     * @param blk The cache block to be updated.
      * @param lat The latency of the access.
      * @param writebacks List for any writebacks that need to be performed.
-     * @param update True if the replacement data should be updated.
      * @return Boolean indicating whether the request was satisfied.
      */
     bool access(PacketPtr pkt, BlkType *&blk,

src/mem/cache/cache_impl.hh

@@ -1192,7 +1192,7 @@ typename Cache<TagStore>::BlkType*
 Cache<TagStore>::allocateBlock(Addr addr, bool is_secure,
                                PacketList &writebacks)
 {
-    BlkType *blk = tags->findVictim(addr, writebacks);
+    BlkType *blk = tags->findVictim(addr);
 
     if (blk->isValid()) {
         Addr repl_addr = tags->regenerateBlkAddr(blk->tag, blk->set);

src/mem/cache/tags/fa_lru.cc

@@ -224,7 +224,7 @@ FALRU::findBlock(Addr addr, bool is_secure) const
 }
 
 FALRUBlk*
-FALRU::findVictim(Addr addr, PacketList &writebacks)
+FALRU::findVictim(Addr addr)
 {
     FALRUBlk * blk = tail;
     assert(blk->inCache == 0);

src/mem/cache/tags/fa_lru.hh

@@ -203,10 +203,9 @@ public:
     /**
      * Find a replacement block for the address provided.
      * @param pkt The request to a find a replacement candidate for.
-     * @param writebacks List for any writebacks to be performed.
      * @return The block to place the replacement in.
      */
-    FALRUBlk* findVictim(Addr addr, PacketList & writebacks);
+    FALRUBlk* findVictim(Addr addr);
 
     void insertBlock(PacketPtr pkt, BlkType *blk);
 

src/mem/cache/tags/lru.cc

@@ -172,7 +172,7 @@ LRU::findBlock(Addr addr, bool is_secure) const
 }
 
 LRU::BlkType*
-LRU::findVictim(Addr addr, PacketList &writebacks)
+LRU::findVictim(Addr addr)
 {
     unsigned set = extractSet(addr);
     // grab a replacement candidate

src/mem/cache/tags/lru.hh

@@ -169,10 +169,9 @@ public:
     /**
      * Find a block to evict for the address provided.
      * @param addr The addr to a find a replacement candidate for.
-     * @param writebacks List for any writebacks to be performed.
      * @return The candidate block.
      */
-    BlkType* findVictim(Addr addr, PacketList &writebacks);
+    BlkType* findVictim(Addr addr);
 
     /**
      * Insert the new block into the cache.  For LRU this means inserting into