thread_state.hh revision 8735
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 40#if !FULL_SYSTEM 41#include "mem/mem_object.hh" 42#include "sim/process.hh" 43#endif 44 45#if FULL_SYSTEM 46class EndQuiesceEvent; 47class FunctionProfile; 48class ProfileNode; 49namespace TheISA { 50 namespace Kernel { 51 class Statistics; 52 }; 53}; 54#endif 55 56class Checkpoint; 57class PortProxy; 58class SETranslatingPort; 59class FSTranslatingPort; 60 61/** 62 * Struct for holding general thread state that is needed across CPU 63 * models. This includes things such as pointers to the process, 64 * memory, quiesce events, and certain stats. This can be expanded 65 * to hold more thread-specific stats within it. 66 */ 67struct ThreadState { 68 typedef ThreadContext::Status Status; 69 70#if FULL_SYSTEM 71 ThreadState(BaseCPU *cpu, ThreadID _tid); 72#else 73 ThreadState(BaseCPU *cpu, ThreadID _tid, Process *_process); 74#endif 75 76 virtual ~ThreadState(); 77 78 void serialize(std::ostream &os); 79 80 void unserialize(Checkpoint *cp, const std::string §ion); 81 82 int cpuId() { return baseCpu->cpuId(); } 83 84 int contextId() { return _contextId; } 85 86 void setContextId(int id) { _contextId = id; } 87 88 void setThreadId(ThreadID id) { _threadId = id; } 89 90 ThreadID threadId() { return _threadId; } 91 92 Tick readLastActivate() { return lastActivate; } 93 94 Tick readLastSuspend() { return lastSuspend; } 95 96#if FULL_SYSTEM 97 /** 98 * Initialise the physical and virtual port proxies and tie them to 99 * the data port of the CPU. 100 * 101 * tc ThreadContext for the virtual-to-physical translation 102 */ 103 void initMemProxies(ThreadContext *tc); 104 105 void dumpFuncProfile(); 106 107 EndQuiesceEvent *getQuiesceEvent() { return quiesceEvent; } 108 109 void profileClear(); 110 111 void profileSample(); 112 113 TheISA::Kernel::Statistics *getKernelStats() { return kernelStats; } 114 115 PortProxy* getPhysProxy() { return physProxy; } 116 117 FSTranslatingPortProxy* getVirtProxy() { return virtProxy; } 118#else 119 Process *getProcessPtr() { return process; } 120 121 SETranslatingPortProxy* getMemProxy(); 122#endif 123 124 /** Reads the number of instructions functionally executed and 125 * committed. 126 */ 127 Counter readFuncExeInst() { return funcExeInst; } 128 129 /** Sets the total number of instructions functionally executed 130 * and committed. 131 */ 132 void setFuncExeInst(Counter new_val) { funcExeInst = new_val; } 133 134 /** Returns the status of this thread. */ 135 Status status() const { return _status; } 136 137 /** Sets the status of this thread. */ 138 void setStatus(Status new_status) { _status = new_status; } 139 140 public: 141 142 /** Number of instructions committed. */ 143 Counter numInst; 144 /** Stat for number instructions committed. */ 145 Stats::Scalar numInsts; 146 /** Stat for number of memory references. */ 147 Stats::Scalar numMemRefs; 148 149 /** Number of simulated loads, used for tracking events based on 150 * the number of loads committed. 151 */ 152 Counter numLoad; 153 154 /** The number of simulated loads committed prior to this run. */ 155 Counter startNumLoad; 156 157 protected: 158 ThreadContext::Status _status; 159 160 // Pointer to the base CPU. 161 BaseCPU *baseCpu; 162 163 // system wide HW context id 164 int _contextId; 165 166 // Index of hardware thread context on the CPU that this represents. 167 ThreadID _threadId; 168 169 public: 170 /** Last time activate was called on this thread. */ 171 Tick lastActivate; 172 173 /** Last time suspend was called on this thread. */ 174 Tick lastSuspend; 175 176#if FULL_SYSTEM 177 public: 178 FunctionProfile *profile; 179 ProfileNode *profileNode; 180 Addr profilePC; 181 EndQuiesceEvent *quiesceEvent; 182 183 TheISA::Kernel::Statistics *kernelStats; 184 protected: 185 /** A port proxy outgoing only for functional accesses to physical 186 * addresses.*/ 187 PortProxy *physProxy; 188 189 /** A translating port proxy, outgoing only, for functional 190 * accesse to virtual addresses. */ 191 FSTranslatingPortProxy* virtProxy; 192#else 193 SETranslatingPortProxy* proxy; 194 195 Process *process; 196#endif 197 198 public: 199 /* 200 * number of executed instructions, for matching with syscall trace 201 * points in EIO files. 202 */ 203 Counter funcExeInst; 204 205 // 206 // Count failed store conditionals so we can warn of apparent 207 // application deadlock situations. 208 unsigned storeCondFailures; 209}; 210 211#endif // __CPU_THREAD_STATE_HH__ 212