2 * Copyright (c) 2001-2006 The Regents of The University of Michigan
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
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9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * Authors: Steve Reinhardt
36 #include "arch/isa_traits.hh"
37 #include "arch/kernel_stats.hh"
38 #include "arch/stacktrace.hh"
39 #include "arch/utility.hh"
40 #include "base/callback.hh"
41 #include "base/cprintf.hh"
42 #include "base/output.hh"
43 #include "base/trace.hh"
44 #include "config/the_isa.hh"
45 #include "cpu/base.hh"
46 #include "cpu/profile.hh"
47 #include "cpu/quiesce_event.hh"
48 #include "cpu/simple_thread.hh"
49 #include "cpu/thread_context.hh"
50 #include "mem/fs_translating_port_proxy.hh"
51 #include "mem/se_translating_port_proxy.hh"
52 #include "params/BaseCPU.hh"
53 #include "sim/full_system.hh"
54 #include "sim/process.hh"
55 #include "sim/serialize.hh"
56 #include "sim/sim_exit.hh"
57 #include "sim/system.hh"
62 SimpleThread::SimpleThread(BaseCPU
*_cpu
, int _thread_num
, System
*_sys
,
63 Process
*_process
, TheISA::TLB
*_itb
,
64 TheISA::TLB
*_dtb
, TheISA::ISA
*_isa
)
65 : ThreadState(_cpu
, _thread_num
, _process
), isa(_isa
), system(_sys
),
69 tc
= new ProxyThreadContext
<SimpleThread
>(this);
72 SimpleThread::SimpleThread(BaseCPU
*_cpu
, int _thread_num
, System
*_sys
,
73 TheISA::TLB
*_itb
, TheISA::TLB
*_dtb
,
74 TheISA::ISA
*_isa
, bool use_kernel_stats
)
75 : ThreadState(_cpu
, _thread_num
, NULL
), isa(_isa
), system(_sys
), itb(_itb
),
78 tc
= new ProxyThreadContext
<SimpleThread
>(this);
80 quiesceEvent
= new EndQuiesceEvent(tc
);
84 if (baseCpu
->params()->profile
) {
85 profile
= new FunctionProfile(system
->kernelSymtab
);
87 new MakeCallback
<SimpleThread
,
88 &SimpleThread::dumpFuncProfile
>(this);
89 registerExitCallback(cb
);
92 // let's fill with a dummy node for now so we don't get a segfault
93 // on the first cycle when there's no node available.
94 static ProfileNode dummyNode
;
95 profileNode
= &dummyNode
;
99 kernelStats
= new TheISA::Kernel::Statistics(system
);
102 SimpleThread::~SimpleThread()
108 SimpleThread::takeOverFrom(ThreadContext
*oldContext
)
110 ::takeOverFrom(*tc
, *oldContext
);
111 decoder
.takeOverFrom(oldContext
->getDecoderPtr());
113 kernelStats
= oldContext
->getKernelStats();
114 funcExeInst
= oldContext
->readFuncExeInst();
115 storeCondFailures
= 0;
119 SimpleThread::copyState(ThreadContext
*oldContext
)
121 // copy over functional state
122 _status
= oldContext
->status();
123 copyArchRegs(oldContext
);
125 funcExeInst
= oldContext
->readFuncExeInst();
127 _threadId
= oldContext
->threadId();
128 _contextId
= oldContext
->contextId();
132 SimpleThread::serialize(ostream
&os
)
134 ThreadState::serialize(os
);
135 ::serialize(*tc
, os
);
140 SimpleThread::unserialize(Checkpoint
*cp
, const std::string
§ion
)
142 ThreadState::unserialize(cp
, section
);
143 ::unserialize(*tc
, cp
, section
);
147 SimpleThread::startup()
153 SimpleThread::dumpFuncProfile()
155 std::ostream
*os
= simout
.create(csprintf("profile.%s.dat",
157 profile
->dump(tc
, *os
);
161 SimpleThread::activate(Cycles delay
)
163 if (status() == ThreadContext::Active
)
166 lastActivate
= curTick();
168 // if (status() == ThreadContext::Unallocated) {
169 // cpu->activateWhenReady(_threadId);
173 _status
= ThreadContext::Active
;
175 // status() == Suspended
176 baseCpu
->activateContext(_threadId
, delay
);
180 SimpleThread::suspend()
182 if (status() == ThreadContext::Suspended
)
185 lastActivate
= curTick();
186 lastSuspend
= curTick();
187 _status
= ThreadContext::Suspended
;
188 baseCpu
->suspendContext(_threadId
);
195 if (status() == ThreadContext::Halted
)
198 _status
= ThreadContext::Halted
;
199 baseCpu
->haltContext(_threadId
);
204 SimpleThread::regStats(const string
&name
)
206 if (FullSystem
&& kernelStats
)
207 kernelStats
->regStats(name
+ ".kern");
211 SimpleThread::copyArchRegs(ThreadContext
*src_tc
)
213 TheISA::copyRegs(src_tc
, tc
);