145 lines
4.3 KiB
C++
145 lines
4.3 KiB
C++
/*
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* Copyright (c) 2006 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __CPU_THREAD_STATE_HH__
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#define __CPU_THREAD_STATE_HH__
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#include "cpu/exec_context.hh"
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#include "cpu/profile.hh"
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#if FULL_SYSTEM
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class EndQuiesceEvent;
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class FunctionProfile;
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class ProfileNode;
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namespace Kernel {
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class Statistics;
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};
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#else
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class FunctionalMemory;
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class Process;
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#endif
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/**
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* Struct for holding general thread state that is needed across CPU
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* models. This includes things such as pointers to the process,
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* memory, quiesce events, and certain stats. This can be expanded
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* to hold more thread-specific stats within it.
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*/
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struct ThreadState {
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#if FULL_SYSTEM
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ThreadState(int _cpuId, int _tid, FunctionalMemory *_mem)
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: cpuId(_cpuId), tid(_tid), mem(_mem), lastActivate(0), lastSuspend(0),
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profile(NULL), profileNode(NULL), profilePC(0), quiesceEvent(NULL)
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#else
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ThreadState(int _cpuId, int _tid, FunctionalMemory *_mem,
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Process *_process, short _asid)
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: cpuId(_cpuId), tid(_tid), mem(_mem), process(_process), asid(_asid)
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#endif
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{
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numInst = 0;
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funcExeInst = 0;
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storeCondFailures = 0;
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}
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ExecContext::Status status;
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int cpuId;
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// Index of hardware thread context on the CPU that this represents.
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int tid;
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Counter numInst;
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Stats::Scalar<> numInsts;
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Stats::Scalar<> numMemRefs;
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// number of simulated loads
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Counter numLoad;
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Counter startNumLoad;
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FunctionalMemory *mem; // functional storage for process address space
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#if FULL_SYSTEM
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Tick lastActivate;
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Tick lastSuspend;
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FunctionProfile *profile;
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ProfileNode *profileNode;
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Addr profilePC;
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EndQuiesceEvent *quiesceEvent;
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Kernel::Statistics *kernelStats;
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#else
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Process *process;
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// Address space ID. Note that this is used for TIMING cache
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// simulation only; all functional memory accesses should use
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// one of the FunctionalMemory pointers above.
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short asid;
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#endif
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#if FULL_SYSTEM
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void profileClear()
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{
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if (profile)
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profile->clear();
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}
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void profileSample()
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{
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if (profile)
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profile->sample(profileNode, profilePC);
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}
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#endif
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/**
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* Temporary storage to pass the source address from copy_load to
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* copy_store.
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* @todo Remove this temporary when we have a better way to do it.
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*/
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Addr copySrcAddr;
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/**
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* Temp storage for the physical source address of a copy.
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* @todo Remove this temporary when we have a better way to do it.
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*/
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Addr copySrcPhysAddr;
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/*
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* number of executed instructions, for matching with syscall trace
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* points in EIO files.
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*/
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Counter funcExeInst;
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//
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// Count failed store conditionals so we can warn of apparent
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// application deadlock situations.
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unsigned storeCondFailures;
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};
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#endif // __CPU_THREAD_STATE_HH__
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