2 * Copyright (c) 2006 The Regents of The University of Michigan
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29 #include "cpu/thread_state.hh"
31 #include "base/output.hh"
32 #include "cpu/base.hh"
33 #include "cpu/profile.hh"
34 #include "cpu/quiesce_event.hh"
35 #include "kern/kernel_stats.hh"
36 #include "mem/fs_translating_port_proxy.hh"
37 #include "mem/port.hh"
38 #include "mem/port_proxy.hh"
39 #include "mem/se_translating_port_proxy.hh"
40 #include "sim/full_system.hh"
41 #include "sim/serialize.hh"
42 #include "sim/system.hh"
44 ThreadState::ThreadState(BaseCPU
*cpu
, ThreadID _tid
, Process
*_process
)
45 : numInst(0), numOp(0), numLoad(0), startNumLoad(0),
46 _status(ThreadContext::Halted
), baseCpu(cpu
),
47 _contextId(0), _threadId(_tid
), lastActivate(0), lastSuspend(0),
48 profile(NULL
), profileNode(NULL
), profilePC(0), quiesceEvent(NULL
),
49 kernelStats(NULL
), process(_process
), physProxy(NULL
), virtProxy(NULL
),
50 funcExeInst(0), storeCondFailures(0)
54 ThreadState::~ThreadState()
56 if (physProxy
!= NULL
)
58 if (virtProxy
!= NULL
)
63 ThreadState::serialize(CheckpointOut
&cp
) const
65 SERIALIZE_ENUM(_status
);
66 // thread_num and cpu_id are deterministic from the config
67 SERIALIZE_SCALAR(funcExeInst
);
72 Tick quiesceEndTick
= 0;
73 if (quiesceEvent
->scheduled())
74 quiesceEndTick
= quiesceEvent
->when();
75 SERIALIZE_SCALAR(quiesceEndTick
);
77 kernelStats
->serialize(cp
);
81 ThreadState::unserialize(CheckpointIn
&cp
)
84 UNSERIALIZE_ENUM(_status
);
85 // thread_num and cpu_id are deterministic from the config
86 UNSERIALIZE_SCALAR(funcExeInst
);
92 UNSERIALIZE_SCALAR(quiesceEndTick
);
94 baseCpu
->schedule(quiesceEvent
, quiesceEndTick
);
96 kernelStats
->unserialize(cp
);
100 ThreadState::initMemProxies(ThreadContext
*tc
)
102 // The port proxies only refer to the data port on the CPU side
103 // and can safely be done at init() time even if the CPU is not
104 // connected, i.e. when restoring from a checkpoint and later
105 // switching the CPU in.
107 assert(physProxy
== NULL
);
108 // This cannot be done in the constructor as the thread state
109 // itself is created in the base cpu constructor and the
110 // getSendFunctional is a virtual function
111 physProxy
= new PortProxy(baseCpu
->getSendFunctional(),
112 baseCpu
->cacheLineSize());
114 assert(virtProxy
== NULL
);
115 virtProxy
= new FSTranslatingPortProxy(tc
);
117 assert(virtProxy
== NULL
);
118 virtProxy
= new SETranslatingPortProxy(
119 tc
, SETranslatingPortProxy::NextPage
);
124 ThreadState::getPhysProxy()
127 assert(physProxy
!= NULL
);
132 ThreadState::getVirtProxy()
134 assert(virtProxy
!= NULL
);
139 ThreadState::profileClear()
146 ThreadState::profileSample()
149 profile
->sample(profileNode
, profilePC
);