thread_state.hh revision 8777
1/* 2 * Copyright (c) 2006 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 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. 15 * 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 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Kevin Lim 29 */ 30 31#ifndef __CPU_THREAD_STATE_HH__ 32#define __CPU_THREAD_STATE_HH__ 33 34#include "arch/types.hh" 35#include "config/the_isa.hh" 36#include "cpu/base.hh" 37#include "cpu/profile.hh" 38#include "cpu/thread_context.hh" 39#include "mem/mem_object.hh" 40#include "sim/process.hh" 41 42class EndQuiesceEvent; 43class FunctionProfile; 44class ProfileNode; 45namespace TheISA { 46 namespace Kernel { 47 class Statistics; 48 }; 49}; 50 51class Checkpoint; 52class Port; 53class TranslatingPort; 54 55/** 56 * Struct for holding general thread state that is needed across CPU 57 * models. This includes things such as pointers to the process, 58 * memory, quiesce events, and certain stats. This can be expanded 59 * to hold more thread-specific stats within it. 60 */ 61struct ThreadState { 62 typedef ThreadContext::Status Status; 63 64 ThreadState(BaseCPU *cpu, ThreadID _tid, Process *_process); 65 66 ~ThreadState(); 67 68 void serialize(std::ostream &os); 69 70 void unserialize(Checkpoint *cp, const std::string §ion); 71 72 int cpuId() { return baseCpu->cpuId(); } 73 74 int contextId() { return _contextId; } 75 76 void setContextId(int id) { _contextId = id; } 77 78 void setThreadId(ThreadID id) { _threadId = id; } 79 80 ThreadID threadId() { return _threadId; } 81 82 Tick readLastActivate() { return lastActivate; } 83 84 Tick readLastSuspend() { return lastSuspend; } 85 86 void connectPhysPort(); 87 88 void connectVirtPort(ThreadContext *tc); 89 90 void connectMemPorts(ThreadContext *tc); 91 92 void dumpFuncProfile(); 93 94 EndQuiesceEvent *getQuiesceEvent() { return quiesceEvent; } 95 96 void profileClear(); 97 98 void profileSample(); 99 100 TheISA::Kernel::Statistics *getKernelStats() { return kernelStats; } 101 102 Process *getProcessPtr() { return process; } 103 104 TranslatingPort *getMemPort(); 105 106 void setMemPort(TranslatingPort *_port) { port = _port; } 107 108 VirtualPort *getVirtPort() { return virtPort; } 109 110 FunctionalPort *getPhysPort() { return physPort; } 111 112 void setPhysPort(FunctionalPort *port) { physPort = port; } 113 114 /** Reads the number of instructions functionally executed and 115 * committed. 116 */ 117 Counter readFuncExeInst() { return funcExeInst; } 118 119 /** Sets the total number of instructions functionally executed 120 * and committed. 121 */ 122 void setFuncExeInst(Counter new_val) { funcExeInst = new_val; } 123 124 /** Returns the status of this thread. */ 125 Status status() const { return _status; } 126 127 /** Sets the status of this thread. */ 128 void setStatus(Status new_status) { _status = new_status; } 129 130 public: 131 /** Connects port to the functional port of the memory object 132 * below the CPU. */ 133 void connectToMemFunc(Port *port); 134 135 /** Number of instructions committed. */ 136 Counter numInst; 137 /** Stat for number instructions committed. */ 138 Stats::Scalar numInsts; 139 /** Stat for number of memory references. */ 140 Stats::Scalar numMemRefs; 141 142 /** Number of simulated loads, used for tracking events based on 143 * the number of loads committed. 144 */ 145 Counter numLoad; 146 147 /** The number of simulated loads committed prior to this run. */ 148 Counter startNumLoad; 149 150 protected: 151 ThreadContext::Status _status; 152 153 // Pointer to the base CPU. 154 BaseCPU *baseCpu; 155 156 // system wide HW context id 157 int _contextId; 158 159 // Index of hardware thread context on the CPU that this represents. 160 ThreadID _threadId; 161 162 public: 163 /** Last time activate was called on this thread. */ 164 Tick lastActivate; 165 166 /** Last time suspend was called on this thread. */ 167 Tick lastSuspend; 168 169 public: 170 FunctionProfile *profile; 171 ProfileNode *profileNode; 172 Addr profilePC; 173 EndQuiesceEvent *quiesceEvent; 174 175 TheISA::Kernel::Statistics *kernelStats; 176 177 protected: 178 Process *process; 179 180 TranslatingPort *port; 181 182 /** A functional port, outgoing only, for functional accesse to virtual 183 * addresses. */ 184 VirtualPort *virtPort; 185 186 /** A functional port outgoing only for functional accesses to physical 187 * addresses.*/ 188 FunctionalPort *physPort; 189 190 public: 191 /* 192 * number of executed instructions, for matching with syscall trace 193 * points in EIO files. 194 */ 195 Counter funcExeInst; 196 197 // 198 // Count failed store conditionals so we can warn of apparent 199 // application deadlock situations. 200 unsigned storeCondFailures; 201}; 202 203#endif // __CPU_THREAD_STATE_HH__ 204