thread_state.hh revision 8767:e575781f71b8
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 42#if FULL_SYSTEM 43class EndQuiesceEvent; 44class FunctionProfile; 45class ProfileNode; 46namespace TheISA { 47 namespace Kernel { 48 class Statistics; 49 }; 50}; 51#endif 52 53class Checkpoint; 54class Port; 55class TranslatingPort; 56 57/** 58 * Struct for holding general thread state that is needed across CPU 59 * models. This includes things such as pointers to the process, 60 * memory, quiesce events, and certain stats. This can be expanded 61 * to hold more thread-specific stats within it. 62 */ 63struct ThreadState { 64 typedef ThreadContext::Status Status; 65 66 ThreadState(BaseCPU *cpu, ThreadID _tid, Process *_process); 67 68 ~ThreadState(); 69 70 void serialize(std::ostream &os); 71 72 void unserialize(Checkpoint *cp, const std::string §ion); 73 74 int cpuId() { return baseCpu->cpuId(); } 75 76 int contextId() { return _contextId; } 77 78 void setContextId(int id) { _contextId = id; } 79 80 void setThreadId(ThreadID id) { _threadId = id; } 81 82 ThreadID threadId() { return _threadId; } 83 84 Tick readLastActivate() { return lastActivate; } 85 86 Tick readLastSuspend() { return lastSuspend; } 87 88 void connectPhysPort(); 89 90 void connectVirtPort(ThreadContext *tc); 91 92#if FULL_SYSTEM 93 void connectMemPorts(ThreadContext *tc); 94 95 void dumpFuncProfile(); 96 97 EndQuiesceEvent *getQuiesceEvent() { return quiesceEvent; } 98 99 void profileClear(); 100 101 void profileSample(); 102 103 TheISA::Kernel::Statistics *getKernelStats() { return kernelStats; } 104#endif 105 Process *getProcessPtr() { return process; } 106 107 TranslatingPort *getMemPort(); 108 109 void setMemPort(TranslatingPort *_port) { port = _port; } 110 111 VirtualPort *getVirtPort() { return virtPort; } 112 113 FunctionalPort *getPhysPort() { return physPort; } 114 115 void setPhysPort(FunctionalPort *port) { physPort = port; } 116 117 /** Reads the number of instructions functionally executed and 118 * committed. 119 */ 120 Counter readFuncExeInst() { return funcExeInst; } 121 122 /** Sets the total number of instructions functionally executed 123 * and committed. 124 */ 125 void setFuncExeInst(Counter new_val) { funcExeInst = new_val; } 126 127 /** Returns the status of this thread. */ 128 Status status() const { return _status; } 129 130 /** Sets the status of this thread. */ 131 void setStatus(Status new_status) { _status = new_status; } 132 133 public: 134 /** Connects port to the functional port of the memory object 135 * below the CPU. */ 136 void connectToMemFunc(Port *port); 137 138 /** Number of instructions committed. */ 139 Counter numInst; 140 /** Stat for number instructions committed. */ 141 Stats::Scalar numInsts; 142 /** Stat for number of memory references. */ 143 Stats::Scalar numMemRefs; 144 145 /** Number of simulated loads, used for tracking events based on 146 * the number of loads committed. 147 */ 148 Counter numLoad; 149 150 /** The number of simulated loads committed prior to this run. */ 151 Counter startNumLoad; 152 153 protected: 154 ThreadContext::Status _status; 155 156 // Pointer to the base CPU. 157 BaseCPU *baseCpu; 158 159 // system wide HW context id 160 int _contextId; 161 162 // Index of hardware thread context on the CPU that this represents. 163 ThreadID _threadId; 164 165 public: 166 /** Last time activate was called on this thread. */ 167 Tick lastActivate; 168 169 /** Last time suspend was called on this thread. */ 170 Tick lastSuspend; 171 172#if FULL_SYSTEM 173 public: 174 FunctionProfile *profile; 175 ProfileNode *profileNode; 176 Addr profilePC; 177 EndQuiesceEvent *quiesceEvent; 178 179 TheISA::Kernel::Statistics *kernelStats; 180#endif 181 protected: 182 Process *process; 183 184 TranslatingPort *port; 185 186 /** A functional port, outgoing only, for functional accesse to virtual 187 * addresses. */ 188 VirtualPort *virtPort; 189 190 /** A functional port outgoing only for functional accesses to physical 191 * addresses.*/ 192 FunctionalPort *physPort; 193 194 public: 195 /* 196 * number of executed instructions, for matching with syscall trace 197 * points in EIO files. 198 */ 199 Counter funcExeInst; 200 201 // 202 // Count failed store conditionals so we can warn of apparent 203 // application deadlock situations. 204 unsigned storeCondFailures; 205}; 206 207#endif // __CPU_THREAD_STATE_HH__ 208