Merge zizzer:/bk/newmem
into zazzer.eecs.umich.edu:/z/rdreslin/m5bk/newmemcleanest --HG-- extra : convert_revision : c6611b32537918f5bf183788227ddf69a9a9a069
This commit is contained in:
commit
9cf063eb8e
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@ -72,6 +72,7 @@ class MyCache(BaseCache):
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latency = 1
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mshrs = 10
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tgts_per_mshr = 5
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protocol = CoherenceProtocol(protocol='moesi')
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# client system CPU is always simple... note this is an assignment of
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# a class, not an instance.
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@ -182,7 +182,8 @@ compoundFlagMap = {
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'EthernetNoData' : [ 'Ethernet', 'EthernetPIO', 'EthernetDesc', 'EthernetIntr', 'EthernetSM', 'EthernetCksum' ],
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'IdeAll' : [ 'IdeCtrl', 'IdeDisk' ],
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'O3CPUAll' : [ 'Fetch', 'Decode', 'Rename', 'IEW', 'Commit', 'IQ', 'ROB', 'FreeList', 'RenameMap', 'LSQ', 'LSQUnit', 'StoreSet', 'MemDepUnit', 'DynInst', 'FullCPU', 'O3CPU', 'Activity','Scoreboard','Writeback'],
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'OzoneCPUAll' : [ 'BE', 'FE', 'IBE', 'OzoneLSQ', 'OzoneCPU']
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'OzoneCPUAll' : [ 'BE', 'FE', 'IBE', 'OzoneLSQ', 'OzoneCPU'],
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'All' : baseFlags
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}
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#############################################################
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@ -850,9 +850,6 @@ template <class Impl>
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void
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FullO3CPU<Impl>::resume()
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{
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#if FULL_SYSTEM
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assert(system->getMemoryMode() == System::Timing);
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#endif
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fetch.resume();
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decode.resume();
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rename.resume();
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@ -864,6 +861,10 @@ FullO3CPU<Impl>::resume()
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if (_status == SwitchedOut || _status == Idle)
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return;
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#if FULL_SYSTEM
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assert(system->getMemoryMode() == System::Timing);
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#endif
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if (!tickEvent.scheduled())
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tickEvent.schedule(curTick);
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_status = Running;
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83
src/mem/cache/cache_blk.hh
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83
src/mem/cache/cache_blk.hh
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@ -35,8 +35,11 @@
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#ifndef __CACHE_BLK_HH__
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#define __CACHE_BLK_HH__
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#include <list>
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#include "sim/root.hh" // for Tick
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#include "arch/isa_traits.hh" // for Addr
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#include "mem/request.hh"
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/**
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* Cache block status bit assignments
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@ -96,6 +99,35 @@ class CacheBlk
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/** Number of references to this block since it was brought in. */
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int refCount;
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protected:
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/**
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* Represents that the indicated thread context has a "lock" on
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* the block, in the LL/SC sense.
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*/
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class Lock {
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public:
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int cpuNum; // locking CPU
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int threadNum; // locking thread ID within CPU
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// check for matching execution context
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bool matchesContext(Request *req)
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{
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return (cpuNum == req->getCpuNum() &&
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threadNum == req->getThreadNum());
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}
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Lock(Request *req)
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: cpuNum(req->getCpuNum()), threadNum(req->getThreadNum())
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{
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}
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};
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/** List of thread contexts that have performed a load-locked (LL)
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* on the block since the last store. */
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std::list<Lock> lockList;
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public:
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CacheBlk()
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: asid(-1), tag(0), data(0) ,size(0), status(0), whenReady(0),
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set(-1), refCount(0)
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@ -175,7 +207,58 @@ class CacheBlk
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return (status & BlkHWPrefetched) != 0;
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}
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/**
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* Track the fact that a local locked was issued to the block. If
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* multiple LLs get issued from the same context we could have
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* redundant records on the list, but that's OK, as they'll all
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* get blown away at the next store.
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*/
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void trackLoadLocked(Request *req)
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{
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assert(req->isLocked());
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lockList.push_front(Lock(req));
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}
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/**
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* Clear the list of valid load locks. Should be called whenever
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* block is written to or invalidated.
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*/
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void clearLoadLocks() { lockList.clear(); }
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/**
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* Handle interaction of load-locked operations and stores.
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* @return True if write should proceed, false otherwise. Returns
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* false only in the case of a failed store conditional.
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*/
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bool checkWrite(Request *req)
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{
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if (req->isLocked()) {
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// it's a store conditional... have to check for matching
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// load locked.
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bool success = false;
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for (std::list<Lock>::iterator i = lockList.begin();
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i != lockList.end(); ++i)
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{
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if (i->matchesContext(req)) {
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// it's a store conditional, and as far as the memory
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// system can tell, the requesting context's lock is
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// still valid.
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success = true;
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break;
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}
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}
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req->setScResult(success ? 1 : 0);
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clearLoadLocks();
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return success;
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} else {
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// for *all* stores (conditional or otherwise) we have to
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// clear the list of load-locks as they're all invalid now.
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clearLoadLocks();
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return true;
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}
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}
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};
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#endif //__CACHE_BLK_HH__
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10
src/mem/cache/cache_impl.hh
vendored
10
src/mem/cache/cache_impl.hh
vendored
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@ -86,11 +86,6 @@ doAtomicAccess(Packet *pkt, bool isCpuSide)
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{
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if (isCpuSide)
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{
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//Temporary solution to LL/SC
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if (pkt->isWrite() && (pkt->req->isLocked())) {
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pkt->req->setScResult(1);
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}
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probe(pkt, true, NULL);
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//TEMP ALWAYS SUCCES FOR NOW
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pkt->result = Packet::Success;
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@ -116,11 +111,6 @@ doFunctionalAccess(Packet *pkt, bool isCpuSide)
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//TEMP USE CPU?THREAD 0 0
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pkt->req->setThreadContext(0,0);
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//Temporary solution to LL/SC
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if (pkt->isWrite() && (pkt->req->isLocked())) {
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assert("Can't handle LL/SC on functional path\n");
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}
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probe(pkt, false, memSidePort);
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//TEMP ALWAYS SUCCESFUL FOR NOW
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pkt->result = Packet::Success;
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1
src/mem/cache/tags/lru.cc
vendored
1
src/mem/cache/tags/lru.cc
vendored
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@ -246,6 +246,7 @@ LRU::invalidateBlk(Addr addr)
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if (blk) {
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blk->status = 0;
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blk->isTouched = false;
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blk->clearLoadLocks();
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tagsInUse--;
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}
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}
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@ -167,13 +167,14 @@ void
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PageTable::serialize(std::ostream &os)
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{
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paramOut(os, "ptable.size", pTable.size());
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int count = 0;
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m5::hash_map<Addr,Addr>::iterator iter;
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while (iter != pTable.end()) {
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m5::hash_map<Addr,Addr>::iterator end;
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for (iter = pTable.begin(); iter != end; ++iter,++count) {
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paramOut(os, csprintf("ptable.entry%dvaddr", count),iter->first);
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paramOut(os, csprintf("ptable.entry%dpaddr", count),iter->second);
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++count;
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}
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assert(count == pTable.size());
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}
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@ -730,9 +730,8 @@ class SimObject(object):
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# i don't know if there's a better way to do this - calling
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# setMemoryMode directly from self._ccObject results in calling
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# SimObject::setMemoryMode, not the System::setMemoryMode
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## system_ptr = cc_main.convertToSystemPtr(self._ccObject)
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## system_ptr.setMemoryMode(mode)
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self._ccObject.setMemoryMode(mode)
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system_ptr = cc_main.convertToSystemPtr(self._ccObject)
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system_ptr.setMemoryMode(mode)
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for child in self._children.itervalues():
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child.changeTiming(mode)
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@ -120,10 +120,22 @@ class Event : public Serializable, public FastAlloc
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/// priority; these values are used to control events that need to
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/// be ordered within a cycle.
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enum Priority {
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/// Breakpoints should happen before anything else, so we
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/// don't miss any action when debugging.
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/// If we enable tracing on a particular cycle, do that as the
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/// very first thing so we don't miss any of the events on
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/// that cycle (even if we enter the debugger).
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Trace_Enable_Pri = -101,
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/// Breakpoints should happen before anything else (except
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/// enabling trace output), so we don't miss any action when
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/// debugging.
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Debug_Break_Pri = -100,
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/// CPU switches schedule the new CPU's tick event for the
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/// same cycle (after unscheduling the old CPU's tick event).
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/// The switch needs to come before any tick events to make
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/// sure we don't tick both CPUs in the same cycle.
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CPU_Switch_Pri = -31,
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/// For some reason "delayed" inter-cluster writebacks are
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/// scheduled before regular writebacks (which have default
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/// priority). Steve?
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@ -132,12 +144,6 @@ class Event : public Serializable, public FastAlloc
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/// Default is zero for historical reasons.
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Default_Pri = 0,
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/// CPU switches schedule the new CPU's tick event for the
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/// same cycle (after unscheduling the old CPU's tick event).
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/// The switch needs to come before any tick events to make
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/// sure we don't tick both CPUs in the same cycle.
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CPU_Switch_Pri = -31,
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/// Serailization needs to occur before tick events also, so
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/// that a serialize/unserialize is identical to an on-line
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/// CPU switch.
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