diff options
Diffstat (limited to 'src/mem/cache/tags/lru.cc')
| -rw-r--r-- | src/mem/cache/tags/lru.cc | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/mem/cache/tags/lru.cc b/src/mem/cache/tags/lru.cc index f5cf33696..ff353ff6a 100644 --- a/src/mem/cache/tags/lru.cc +++ b/src/mem/cache/tags/lru.cc @@ -183,12 +183,11 @@ LRU::findBlock(Addr addr) const } LRUBlk* -LRU::findReplacement(Addr addr, PacketList &writebacks) +LRU::findVictim(Addr addr, PacketList &writebacks) { unsigned set = extractSet(addr); // grab a replacement candidate LRUBlk *blk = sets[set].blks[assoc-1]; - sets[set].moveToHead(blk); if (blk->isValid()) { replacements[0]++; totalRefs += blk->refCount; @@ -197,7 +196,14 @@ LRU::findReplacement(Addr addr, PacketList &writebacks) DPRINTF(CacheRepl, "set %x: selecting blk %x for replacement\n", set, regenerateBlkAddr(blk->tag, set)); - } else if (!blk->isTouched) { + } + return blk; +} + +void +LRU::insertBlock(Addr addr, LRU::BlkType *blk) +{ + if (!blk->isTouched) { tagsInUse++; blk->isTouched = true; if (!warmedUp && tagsInUse.value() >= warmupBound) { @@ -206,7 +212,11 @@ LRU::findReplacement(Addr addr, PacketList &writebacks) } } - return blk; + // Set tag for new block. Caller is responsible for setting status. + blk->tag = extractTag(addr); + + unsigned set = extractSet(addr); + sets[set].moveToHead(blk); } void |