thread_context.hh revision 3468:cf23ad1ceef2
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_CHECKER_THREAD_CONTEXT_HH__ 32#define __CPU_CHECKER_THREAD_CONTEXT_HH__ 33 34#include "arch/types.hh" 35#include "cpu/checker/cpu.hh" 36#include "cpu/simple_thread.hh" 37#include "cpu/thread_context.hh" 38 39class EndQuiesceEvent; 40namespace Kernel { 41 class Statistics; 42}; 43 44/** 45 * Derived ThreadContext class for use with the Checker. The template 46 * parameter is the ThreadContext class used by the specific CPU being 47 * verified. This CheckerThreadContext is then used by the main CPU 48 * in place of its usual ThreadContext class. It handles updating the 49 * checker's state any time state is updated externally through the 50 * ThreadContext. 51 */ 52template <class TC> 53class CheckerThreadContext : public ThreadContext 54{ 55 public: 56 CheckerThreadContext(TC *actual_tc, 57 CheckerCPU *checker_cpu) 58 : actualTC(actual_tc), checkerTC(checker_cpu->thread), 59 checkerCPU(checker_cpu) 60 { } 61 62 private: 63 /** The main CPU's ThreadContext, or class that implements the 64 * ThreadContext interface. */ 65 TC *actualTC; 66 /** The checker's own SimpleThread. Will be updated any time 67 * anything uses this ThreadContext to externally update a 68 * thread's state. */ 69 SimpleThread *checkerTC; 70 /** Pointer to the checker CPU. */ 71 CheckerCPU *checkerCPU; 72 73 public: 74 75 BaseCPU *getCpuPtr() { return actualTC->getCpuPtr(); } 76 77 void setCpuId(int id) 78 { 79 actualTC->setCpuId(id); 80 checkerTC->setCpuId(id); 81 } 82 83 int readCpuId() { return actualTC->readCpuId(); } 84 85#if FULL_SYSTEM 86 System *getSystemPtr() { return actualTC->getSystemPtr(); } 87 88 PhysicalMemory *getPhysMemPtr() { return actualTC->getPhysMemPtr(); } 89 90 TheISA::ITB *getITBPtr() { return actualTC->getITBPtr(); } 91 92 TheISA::DTB *getDTBPtr() { return actualTC->getDTBPtr(); } 93 94 Kernel::Statistics *getKernelStats() { return actualTC->getKernelStats(); } 95 96 FunctionalPort *getPhysPort() { return actualTC->getPhysPort(); } 97 98 VirtualPort *getVirtPort(ThreadContext *tc = NULL) 99 { return actualTC->getVirtPort(); } 100 101 void delVirtPort(VirtualPort *vp) { actualTC->delVirtPort(vp); } 102#else 103 TranslatingPort *getMemPort() { return actualTC->getMemPort(); } 104 105 Process *getProcessPtr() { return actualTC->getProcessPtr(); } 106#endif 107 108 Status status() const { return actualTC->status(); } 109 110 void setStatus(Status new_status) 111 { 112 actualTC->setStatus(new_status); 113 checkerTC->setStatus(new_status); 114 } 115 116 /// Set the status to Active. Optional delay indicates number of 117 /// cycles to wait before beginning execution. 118 void activate(int delay = 1) { actualTC->activate(delay); } 119 120 /// Set the status to Suspended. 121 void suspend() { actualTC->suspend(); } 122 123 /// Set the status to Unallocated. 124 void deallocate(int delay = 0) { actualTC->deallocate(delay); } 125 126 /// Set the status to Halted. 127 void halt() { actualTC->halt(); } 128 129#if FULL_SYSTEM 130 void dumpFuncProfile() { actualTC->dumpFuncProfile(); } 131#endif 132 133 void takeOverFrom(ThreadContext *oldContext) 134 { 135 actualTC->takeOverFrom(oldContext); 136 checkerTC->copyState(oldContext); 137 } 138 139 void regStats(const std::string &name) { actualTC->regStats(name); } 140 141 void serialize(std::ostream &os) { actualTC->serialize(os); } 142 void unserialize(Checkpoint *cp, const std::string §ion) 143 { actualTC->unserialize(cp, section); } 144 145#if FULL_SYSTEM 146 EndQuiesceEvent *getQuiesceEvent() { return actualTC->getQuiesceEvent(); } 147 148 Tick readLastActivate() { return actualTC->readLastActivate(); } 149 Tick readLastSuspend() { return actualTC->readLastSuspend(); } 150 151 void profileClear() { return actualTC->profileClear(); } 152 void profileSample() { return actualTC->profileSample(); } 153#endif 154 155 int getThreadNum() { return actualTC->getThreadNum(); } 156 157 // @todo: Do I need this? 158 MachInst getInst() { return actualTC->getInst(); } 159 160 // @todo: Do I need this? 161 void copyArchRegs(ThreadContext *tc) 162 { 163 actualTC->copyArchRegs(tc); 164 checkerTC->copyArchRegs(tc); 165 } 166 167 void clearArchRegs() 168 { 169 actualTC->clearArchRegs(); 170 checkerTC->clearArchRegs(); 171 } 172 173 // 174 // New accessors for new decoder. 175 // 176 uint64_t readIntReg(int reg_idx) 177 { return actualTC->readIntReg(reg_idx); } 178 179 FloatReg readFloatReg(int reg_idx, int width) 180 { return actualTC->readFloatReg(reg_idx, width); } 181 182 FloatReg readFloatReg(int reg_idx) 183 { return actualTC->readFloatReg(reg_idx); } 184 185 FloatRegBits readFloatRegBits(int reg_idx, int width) 186 { return actualTC->readFloatRegBits(reg_idx, width); } 187 188 FloatRegBits readFloatRegBits(int reg_idx) 189 { return actualTC->readFloatRegBits(reg_idx); } 190 191 void setIntReg(int reg_idx, uint64_t val) 192 { 193 actualTC->setIntReg(reg_idx, val); 194 checkerTC->setIntReg(reg_idx, val); 195 } 196 197 void setFloatReg(int reg_idx, FloatReg val, int width) 198 { 199 actualTC->setFloatReg(reg_idx, val, width); 200 checkerTC->setFloatReg(reg_idx, val, width); 201 } 202 203 void setFloatReg(int reg_idx, FloatReg val) 204 { 205 actualTC->setFloatReg(reg_idx, val); 206 checkerTC->setFloatReg(reg_idx, val); 207 } 208 209 void setFloatRegBits(int reg_idx, FloatRegBits val, int width) 210 { 211 actualTC->setFloatRegBits(reg_idx, val, width); 212 checkerTC->setFloatRegBits(reg_idx, val, width); 213 } 214 215 void setFloatRegBits(int reg_idx, FloatRegBits val) 216 { 217 actualTC->setFloatRegBits(reg_idx, val); 218 checkerTC->setFloatRegBits(reg_idx, val); 219 } 220 221 uint64_t readPC() { return actualTC->readPC(); } 222 223 void setPC(uint64_t val) 224 { 225 actualTC->setPC(val); 226 checkerTC->setPC(val); 227 checkerCPU->recordPCChange(val); 228 } 229 230 uint64_t readNextPC() { return actualTC->readNextPC(); } 231 232 void setNextPC(uint64_t val) 233 { 234 actualTC->setNextPC(val); 235 checkerTC->setNextPC(val); 236 checkerCPU->recordNextPCChange(val); 237 } 238 239 uint64_t readNextNPC() { return actualTC->readNextNPC(); } 240 241 void setNextNPC(uint64_t val) 242 { 243 actualTC->setNextNPC(val); 244 checkerTC->setNextNPC(val); 245 checkerCPU->recordNextPCChange(val); 246 } 247 248 MiscReg readMiscReg(int misc_reg) 249 { return actualTC->readMiscReg(misc_reg); } 250 251 MiscReg readMiscRegWithEffect(int misc_reg) 252 { return actualTC->readMiscRegWithEffect(misc_reg); } 253 254 void setMiscReg(int misc_reg, const MiscReg &val) 255 { 256 checkerTC->setMiscReg(misc_reg, val); 257 actualTC->setMiscReg(misc_reg, val); 258 } 259 260 void setMiscRegWithEffect(int misc_reg, const MiscReg &val) 261 { 262 checkerTC->setMiscRegWithEffect(misc_reg, val); 263 actualTC->setMiscRegWithEffect(misc_reg, val); 264 } 265 266 unsigned readStCondFailures() 267 { return actualTC->readStCondFailures(); } 268 269 void setStCondFailures(unsigned sc_failures) 270 { 271 checkerTC->setStCondFailures(sc_failures); 272 actualTC->setStCondFailures(sc_failures); 273 } 274#if FULL_SYSTEM 275 bool inPalMode() { return actualTC->inPalMode(); } 276#endif 277 278 // @todo: Fix this! 279 bool misspeculating() { return actualTC->misspeculating(); } 280 281#if !FULL_SYSTEM 282 IntReg getSyscallArg(int i) { return actualTC->getSyscallArg(i); } 283 284 // used to shift args for indirect syscall 285 void setSyscallArg(int i, IntReg val) 286 { 287 checkerTC->setSyscallArg(i, val); 288 actualTC->setSyscallArg(i, val); 289 } 290 291 void setSyscallReturn(SyscallReturn return_value) 292 { 293 checkerTC->setSyscallReturn(return_value); 294 actualTC->setSyscallReturn(return_value); 295 } 296 297 Counter readFuncExeInst() { return actualTC->readFuncExeInst(); } 298#endif 299 void changeRegFileContext(TheISA::RegContextParam param, 300 TheISA::RegContextVal val) 301 { 302 actualTC->changeRegFileContext(param, val); 303 checkerTC->changeRegFileContext(param, val); 304 } 305}; 306 307#endif // __CPU_CHECKER_EXEC_CONTEXT_HH__ 308