/*
- * Copyright (c) 2012-2016 ARM Limited
+ * Copyright (c) 2012-2017 ARM Limited
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
public:
CacheBlk()
- : task_id(ContextSwitchTaskId::Unknown),
- tag(0), data(0), status(0), whenReady(0),
- set(-1), way(-1), isTouched(false), refCount(0),
- srcMasterId(Request::invldMasterId),
- tickInserted(0)
- {}
+ {
+ invalidate();
+ }
CacheBlk(const CacheBlk&) = delete;
CacheBlk& operator=(const CacheBlk&) = delete;
*/
void invalidate()
{
+ tag = MaxAddr;
+ task_id = ContextSwitchTaskId::Unknown;
status = 0;
+ whenReady = MaxTick;
isTouched = false;
+ refCount = 0;
+ srcMasterId = Request::invldMasterId;
+ tickInserted = MaxTick;
lockList.clear();
}
/*
- * Copyright (c) 2012-2014,2016 ARM Limited
+ * Copyright (c) 2012-2014,2016-2017 ARM Limited
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
return -1;
}
- virtual void invalidate(CacheBlk *blk) = 0;
+ /**
+ * This function updates the tags when a block is invalidated but
+ * does not invalidate the block itself.
+ * @param blk The block to invalidate.
+ */
+ virtual void invalidate(CacheBlk *blk)
+ {
+ assert(blk);
+ assert(blk->isValid());
+ tagsInUse--;
+ occupancies[blk->srcMasterId]--;
+ }
virtual CacheBlk* accessBlock(Addr addr, bool is_secure, Cycles &lat) = 0;
/*
- * Copyright (c) 2012-2014 ARM Limited
+ * Copyright (c) 2012-2014,2017 ARM Limited
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
* BlkType* accessBlock();
* BlkType* findVictim();
* void insertBlock();
- * void invalidate();
*/
class BaseSetAssoc : public BaseTags
{
*/
CacheBlk *findBlockBySetAndWay(int set, int way) const override;
- /**
- * Invalidate the given block.
- * @param blk The block to invalidate.
- */
- void invalidate(CacheBlk *blk) override
- {
- assert(blk);
- assert(blk->isValid());
- tagsInUse--;
- assert(blk->srcMasterId < cache->system->maxMasters());
- occupancies[blk->srcMasterId]--;
- blk->srcMasterId = Request::invldMasterId;
- blk->task_id = ContextSwitchTaskId::Unknown;
- blk->tickInserted = curTick();
- }
-
/**
* Access block and update replacement data. May not succeed, in which case
* nullptr is returned. This has all the implications of a cache
/*
- * Copyright (c) 2013,2016 ARM Limited
+ * Copyright (c) 2013,2016-2017 ARM Limited
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
void
FALRU::invalidate(CacheBlk *blk)
{
- assert(blk);
- tagsInUse--;
+ // TODO: We need to move the block to the tail to make it the next victim
+ BaseTags::invalidate(blk);
}
CacheBlk*
CacheBlk* accessBlock(Addr addr, bool is_secure, Cycles &lat);
CacheBlk* findVictim(Addr addr);
void insertBlock(PacketPtr pkt, BlkType *blk);
- void invalidate(CacheBlk *blk);
+ void invalidate(CacheBlk *blk) override;
};
#endif // __MEM_CACHE_TAGS_LRU_HH__
/*
+ * Copyright (c) 2017 ARM Limited
+ * All rights reserved.
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
* Copyright (c) 2014 The Regents of The University of Michigan
* Copyright (c) 2016 ARM Limited
* All rights reserved.
BaseSetAssoc::insertBlock(pkt, blk);
}
-void
-RandomRepl::invalidate(CacheBlk *blk)
-{
- BaseSetAssoc::invalidate(blk);
-}
-
RandomRepl*
RandomReplParams::create()
{
/*
+ * Copyright (c) 2017 ARM Limited
+ * All rights reserved.
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
* Copyright (c) 2014 The Regents of The University of Michigan
* All rights reserved.
*
CacheBlk* accessBlock(Addr addr, bool is_secure, Cycles &lat);
CacheBlk* findVictim(Addr addr);
void insertBlock(PacketPtr pkt, BlkType *blk);
- void invalidate(CacheBlk *blk);
};
#endif // __MEM_CACHE_TAGS_RANDOM_REPL_HH__