2 * Copyright (c) 2006 The Regents of The University of Michigan
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31 #include "base/output.hh"
32 #include "cpu/base.hh"
33 #include "cpu/profile.hh"
34 #include "cpu/thread_state.hh"
35 #include "mem/port.hh"
36 #include "mem/translating_port.hh"
37 #include "sim/serialize.hh"
40 #include "arch/kernel_stats.hh"
41 #include "cpu/quiesce_event.hh"
42 #include "mem/vport.hh"
46 ThreadState::ThreadState(BaseCPU
*cpu
, ThreadID _tid
)
48 ThreadState::ThreadState(BaseCPU
*cpu
, ThreadID _tid
, Process
*_process
)
50 : numInst(0), numLoad(0), _status(ThreadContext::Halted
),
51 baseCpu(cpu
), _threadId(_tid
), lastActivate(0), lastSuspend(0),
53 profile(NULL
), profileNode(NULL
), profilePC(0), quiesceEvent(NULL
),
54 kernelStats(NULL
), physPort(NULL
), virtPort(NULL
),
56 port(NULL
), process(_process
),
58 funcExeInst(0), storeCondFailures(0)
62 ThreadState::~ThreadState()
66 delete port
->getPeer();
73 ThreadState::serialize(std::ostream
&os
)
75 SERIALIZE_ENUM(_status
);
76 // thread_num and cpu_id are deterministic from the config
77 SERIALIZE_SCALAR(funcExeInst
);
78 SERIALIZE_SCALAR(inst
);
81 Tick quiesceEndTick
= 0;
82 if (quiesceEvent
->scheduled())
83 quiesceEndTick
= quiesceEvent
->when();
84 SERIALIZE_SCALAR(quiesceEndTick
);
86 kernelStats
->serialize(os
);
91 ThreadState::unserialize(Checkpoint
*cp
, const std::string
§ion
)
94 UNSERIALIZE_ENUM(_status
);
95 // thread_num and cpu_id are deterministic from the config
96 UNSERIALIZE_SCALAR(funcExeInst
);
97 UNSERIALIZE_SCALAR(inst
);
101 UNSERIALIZE_SCALAR(quiesceEndTick
);
103 baseCpu
->schedule(quiesceEvent
, quiesceEndTick
);
105 kernelStats
->unserialize(cp
, section
);
111 ThreadState::connectMemPorts(ThreadContext
*tc
)
118 ThreadState::connectPhysPort()
120 // @todo: For now this disregards any older port that may have
121 // already existed. Fix this memory leak once the bus port IDs
122 // for functional ports is resolved.
124 physPort
->removeConn();
126 physPort
= new FunctionalPort(csprintf("%s-%d-funcport",
127 baseCpu
->name(), _threadId
));
128 connectToMemFunc(physPort
);
132 ThreadState::connectVirtPort(ThreadContext
*tc
)
134 // @todo: For now this disregards any older port that may have
135 // already existed. Fix this memory leak once the bus port IDs
136 // for functional ports is resolved.
138 virtPort
->removeConn();
140 virtPort
= new VirtualPort(csprintf("%s-%d-vport",
141 baseCpu
->name(), _threadId
), tc
);
142 connectToMemFunc(virtPort
);
146 ThreadState::profileClear()
153 ThreadState::profileSample()
156 profile
->sample(profileNode
, profilePC
);
161 ThreadState::getMemPort()
166 /* Use this port to for syscall emulation writes to memory. */
167 port
= new TranslatingPort(csprintf("%s-%d-funcport", baseCpu
->name(), _threadId
),
168 process
, TranslatingPort::NextPage
);
170 connectToMemFunc(port
);
177 ThreadState::connectToMemFunc(Port
*port
)
179 Port
*dcache_port
, *func_mem_port
;
181 dcache_port
= baseCpu
->getPort("dcache_port");
182 assert(dcache_port
!= NULL
);
184 MemObject
*mem_object
= dcache_port
->getPeer()->getOwner();
185 assert(mem_object
!= NULL
);
187 func_mem_port
= mem_object
->getPort("functional");
188 assert(func_mem_port
!= NULL
);
190 func_mem_port
->setPeer(port
);
191 port
->setPeer(func_mem_port
);