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-rw-r--r--src/mem/cache/blk.hh10
-rw-r--r--src/mem/cache/cache_impl.hh34
-rw-r--r--src/mem/cache/tags/fa_lru.cc9
-rw-r--r--src/mem/cache/tags/fa_lru.hh2
-rw-r--r--src/mem/cache/tags/iic.cc2
-rw-r--r--src/mem/cache/tags/iic.hh2
-rw-r--r--src/mem/cache/tags/lru.cc32
-rw-r--r--src/mem/cache/tags/lru.hh2
8 files changed, 54 insertions, 39 deletions
diff --git a/src/mem/cache/blk.hh b/src/mem/cache/blk.hh
index 91970e09b..73f569e6a 100644
--- a/src/mem/cache/blk.hh
+++ b/src/mem/cache/blk.hh
@@ -189,6 +189,16 @@ class CacheBlk
}
/**
+ * Invalidate the block and clear all state.
+ */
+ void invalidate()
+ {
+ status = 0;
+ isTouched = false;
+ clearLoadLocks();
+ }
+
+ /**
* Check to see if a block has been written.
* @return True if the block is dirty.
*/
diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh
index 2fdbc5c1d..563160ac1 100644
--- a/src/mem/cache/cache_impl.hh
+++ b/src/mem/cache/cache_impl.hh
@@ -170,7 +170,9 @@ Cache<TagStore>::satisfyCpuSideRequest(PacketPtr pkt, BlkType *blk,
pkt->assertMemInhibit();
}
// on ReadExReq we give up our copy unconditionally
- tags->invalidateBlk(blk);
+ assert(blk != tempBlock);
+ tags->invalidate(blk);
+ blk->invalidate();
} else if (blk->isWritable() && !pending_downgrade
&& !pkt->sharedAsserted() && !pkt->req->isInstFetch()) {
// we can give the requester an exclusive copy (by not
@@ -210,7 +212,9 @@ Cache<TagStore>::satisfyCpuSideRequest(PacketPtr pkt, BlkType *blk,
// to just ack those as long as we have an exclusive
// copy at this level.
assert(pkt->isUpgrade());
- tags->invalidateBlk(blk);
+ assert(blk != tempBlock);
+ tags->invalidate(blk);
+ blk->invalidate();
}
}
@@ -280,7 +284,8 @@ Cache<TagStore>::access(PacketPtr pkt, BlkType *&blk,
} else if (pkt->isWrite()) {
blk = tags->findBlock(pkt->getAddr());
if (blk != NULL) {
- tags->invalidateBlk(blk);
+ tags->invalidate(blk);
+ blk->invalidate();
}
}
@@ -444,7 +449,8 @@ Cache<TagStore>::timingAccess(PacketPtr pkt)
} else if (pkt->isWrite()) {
BlkType *blk = tags->findBlock(pkt->getAddr());
if (blk != NULL) {
- tags->invalidateBlk(blk);
+ tags->invalidate(blk);
+ blk->invalidate();
}
}
@@ -644,7 +650,8 @@ Cache<TagStore>::atomicAccess(PacketPtr pkt)
if (pkt->isInvalidate()) {
BlkType *blk = tags->findBlock(pkt->getAddr());
if (blk && blk->isValid()) {
- tags->invalidateBlk(blk);
+ tags->invalidate(blk);
+ blk->invalidate();
DPRINTF(Cache, "rcvd mem-inhibited %s on 0x%x: invalidating\n",
pkt->cmdString(), pkt->getAddr());
}
@@ -953,9 +960,11 @@ Cache<TagStore>::handleResponse(PacketPtr pkt)
mshr->popTarget();
}
- if (blk) {
+ if (blk && blk->isValid()) {
if (pkt->isInvalidate() || mshr->hasPostInvalidate()) {
- tags->invalidateBlk(blk);
+ assert(blk != tempBlock);
+ tags->invalidate(blk);
+ blk->invalidate();
} else if (mshr->hasPostDowngrade()) {
blk->status &= ~BlkWritable;
}
@@ -988,8 +997,7 @@ Cache<TagStore>::handleResponse(PacketPtr pkt)
if (blk->isDirty()) {
allocateWriteBuffer(writebackBlk(blk), time, true);
}
- blk->status &= ~BlkValid;
- tags->invalidateBlk(blk);
+ blk->invalidate();
}
delete pkt;
@@ -1087,8 +1095,8 @@ Cache<TagStore>::handleFill(PacketPtr pkt, BlkType *blk,
tags->insertBlock(pkt->getAddr(), blk, id);
}
- // starting from scratch with a new block
- blk->status = 0;
+ // we should never be overwriting a valid block
+ assert(!blk->isValid());
} else {
// existing block... probably an upgrade
assert(blk->tag == tags->extractTag(addr));
@@ -1259,7 +1267,9 @@ Cache<TagStore>::handleSnoop(PacketPtr pkt, BlkType *blk,
// Do this last in case it deallocates block data or something
// like that
if (invalidate) {
- tags->invalidateBlk(blk);
+ assert(blk != tempBlock);
+ tags->invalidate(blk);
+ blk->invalidate();
}
}
diff --git a/src/mem/cache/tags/fa_lru.cc b/src/mem/cache/tags/fa_lru.cc
index 3a1246ce7..cc2f12eef 100644
--- a/src/mem/cache/tags/fa_lru.cc
+++ b/src/mem/cache/tags/fa_lru.cc
@@ -152,13 +152,10 @@ FALRU::hashLookup(Addr addr) const
}
void
-FALRU::invalidateBlk(FALRU::BlkType *blk)
+FALRU::invalidate(FALRU::BlkType *blk)
{
- if (blk) {
- blk->status = 0;
- blk->isTouched = false;
- tagsInUse--;
- }
+ assert(blk);
+ tagsInUse--;
}
FALRUBlk*
diff --git a/src/mem/cache/tags/fa_lru.hh b/src/mem/cache/tags/fa_lru.hh
index fa1f49a42..66f70a89b 100644
--- a/src/mem/cache/tags/fa_lru.hh
+++ b/src/mem/cache/tags/fa_lru.hh
@@ -168,7 +168,7 @@ public:
* Invalidate a cache block.
* @param blk The block to invalidate.
*/
- void invalidateBlk(BlkType *blk);
+ void invalidate(BlkType *blk);
/**
* Access block and update replacement data. May not succeed, in which case
diff --git a/src/mem/cache/tags/iic.cc b/src/mem/cache/tags/iic.cc
index 3fdc11e80..e8b0a1b29 100644
--- a/src/mem/cache/tags/iic.cc
+++ b/src/mem/cache/tags/iic.cc
@@ -617,7 +617,7 @@ IIC::secondaryChain(Addr tag, unsigned long chain_ptr,
}
void
-IIC::invalidateBlk(IIC::BlkType *tag_ptr)
+IIC::invalidate(IIC::BlkType *tag_ptr)
{
if (tag_ptr) {
for (int i = 0; i < tag_ptr->numData; ++i) {
diff --git a/src/mem/cache/tags/iic.hh b/src/mem/cache/tags/iic.hh
index fd63daff7..97011d1c5 100644
--- a/src/mem/cache/tags/iic.hh
+++ b/src/mem/cache/tags/iic.hh
@@ -408,7 +408,7 @@ class IIC : public BaseTags
* Invalidate a block.
* @param blk The block to invalidate.
*/
- void invalidateBlk(BlkType *blk);
+ void invalidate(BlkType *blk);
/**
* Access block and update replacement data. May not succeed, in which case
diff --git a/src/mem/cache/tags/lru.cc b/src/mem/cache/tags/lru.cc
index c73f557b9..8d32d4b35 100644
--- a/src/mem/cache/tags/lru.cc
+++ b/src/mem/cache/tags/lru.cc
@@ -92,7 +92,7 @@ LRU::LRU(unsigned _numSets, unsigned _blkSize, unsigned _assoc,
++blkIndex;
// invalidate new cache block
- blk->status = 0;
+ blk->invalidate();
//EGH Fix Me : do we need to initialize blk?
@@ -186,8 +186,11 @@ LRU::insertBlock(Addr addr, BlkType *blk, int master_id)
// deal with evicted block
assert(blk->srcMasterId < cache->system->maxMasters());
occupancies[blk->srcMasterId]--;
+
+ blk->invalidate();
}
+ blk->isTouched = true;
// Set tag for new block. Caller is responsible for setting status.
blk->tag = extractTag(addr);
@@ -201,23 +204,18 @@ LRU::insertBlock(Addr addr, BlkType *blk, int master_id)
}
void
-LRU::invalidateBlk(BlkType *blk)
+LRU::invalidate(BlkType *blk)
{
- if (blk) {
- if (blk->isValid()) {
- tagsInUse--;
- assert(blk->srcMasterId < cache->system->maxMasters());
- occupancies[blk->srcMasterId]--;
- blk->srcMasterId = Request::invldMasterId;
- }
- blk->status = 0;
- blk->isTouched = false;
- blk->clearLoadLocks();
-
- // should be evicted before valid blocks
- unsigned set = blk->set;
- sets[set].moveToTail(blk);
- }
+ assert(blk);
+ assert(blk->isValid());
+ tagsInUse--;
+ assert(blk->srcMasterId < cache->system->maxMasters());
+ occupancies[blk->srcMasterId]--;
+ blk->srcMasterId = Request::invldMasterId;
+
+ // should be evicted before valid blocks
+ unsigned set = blk->set;
+ sets[set].moveToTail(blk);
}
void
diff --git a/src/mem/cache/tags/lru.hh b/src/mem/cache/tags/lru.hh
index 4eb66b708..bb1420f71 100644
--- a/src/mem/cache/tags/lru.hh
+++ b/src/mem/cache/tags/lru.hh
@@ -127,7 +127,7 @@ public:
* Invalidate the given block.
* @param blk The block to invalidate.
*/
- void invalidateBlk(BlkType *blk);
+ void invalidate(BlkType *blk);
/**
* Access block and update replacement data. May not succeed, in which case
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 18:52:13 +0000