pseudo_inst.cc revision 6658
1298SN/A/* 22188SN/A * Copyright (c) 2003-2006 The Regents of The University of Michigan 3298SN/A * All rights reserved. 4298SN/A * 5298SN/A * Redistribution and use in source and binary forms, with or without 6298SN/A * modification, are permitted provided that the following conditions are 7298SN/A * met: redistributions of source code must retain the above copyright 8298SN/A * notice, this list of conditions and the following disclaimer; 9298SN/A * redistributions in binary form must reproduce the above copyright 10298SN/A * notice, this list of conditions and the following disclaimer in the 11298SN/A * documentation and/or other materials provided with the distribution; 12298SN/A * neither the name of the copyright holders nor the names of its 13298SN/A * contributors may be used to endorse or promote products derived from 14298SN/A * this software without specific prior written permission. 15298SN/A * 16298SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17298SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18298SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19298SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20298SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21298SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22298SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23298SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24298SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25298SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26298SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Nathan Binkert 29298SN/A */ 30298SN/A 311642SN/A#include <errno.h> 32954SN/A#include <fcntl.h> 33956SN/A#include <unistd.h> 34956SN/A 354078Sbinkertn@umich.edu#include <fstream> 36299SN/A#include <string> 37299SN/A 382170SN/A#include "arch/vtophys.hh" 395882Snate@binkert.org#include "base/debug.hh" 406658Snate@binkert.org#include "config/full_system.hh" 416658Snate@binkert.org#include "config/the_isa.hh" 421717SN/A#include "cpu/base.hh" 432680Sktlim@umich.edu#include "cpu/thread_context.hh" 442313SN/A#include "cpu/quiesce_event.hh" 455529Snate@binkert.org#include "params/BaseCPU.hh" 463565Sgblack@eecs.umich.edu#include "sim/pseudo_inst.hh" 47298SN/A#include "sim/serialize.hh" 485606Snate@binkert.org#include "sim/sim_events.hh" 49298SN/A#include "sim/sim_exit.hh" 50695SN/A#include "sim/stat_control.hh" 51695SN/A#include "sim/stats.hh" 52954SN/A#include "sim/system.hh" 536118Snate@binkert.org 545780Ssteve.reinhardt@amd.com#if FULL_SYSTEM 556118Snate@binkert.org#include "arch/kernel_stats.hh" 562080SN/A#include "sim/vptr.hh" 575780Ssteve.reinhardt@amd.com#endif 58298SN/A 59299SN/Ausing namespace std; 601052SN/A 61729SN/Ausing namespace Stats; 622107SN/Ausing namespace TheISA; 63298SN/A 645504Snate@binkert.orgnamespace PseudoInst { 655504Snate@binkert.org 665780Ssteve.reinhardt@amd.com#if FULL_SYSTEM 675780Ssteve.reinhardt@amd.com 685504Snate@binkert.orgvoid 695504Snate@binkert.orgarm(ThreadContext *tc) 70298SN/A{ 715504Snate@binkert.org if (tc->getKernelStats()) 725504Snate@binkert.org tc->getKernelStats()->arm(); 735504Snate@binkert.org} 745504Snate@binkert.org 755504Snate@binkert.orgvoid 765504Snate@binkert.orgquiesce(ThreadContext *tc) 775504Snate@binkert.org{ 785529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_quiesce) 795504Snate@binkert.org return; 805504Snate@binkert.org 815504Snate@binkert.org DPRINTF(Quiesce, "%s: quiesce()\n", tc->getCpuPtr()->name()); 825504Snate@binkert.org 835504Snate@binkert.org tc->suspend(); 845504Snate@binkert.org if (tc->getKernelStats()) 855504Snate@binkert.org tc->getKernelStats()->quiesce(); 865504Snate@binkert.org} 875504Snate@binkert.org 885504Snate@binkert.orgvoid 895504Snate@binkert.orgquiesceNs(ThreadContext *tc, uint64_t ns) 905504Snate@binkert.org{ 915529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_quiesce || ns == 0) 925504Snate@binkert.org return; 935504Snate@binkert.org 945504Snate@binkert.org EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); 955504Snate@binkert.org 965504Snate@binkert.org Tick resume = curTick + Clock::Int::ns * ns; 975504Snate@binkert.org 985606Snate@binkert.org mainEventQueue.reschedule(quiesceEvent, resume, true); 995504Snate@binkert.org 1005504Snate@binkert.org DPRINTF(Quiesce, "%s: quiesceNs(%d) until %d\n", 1015504Snate@binkert.org tc->getCpuPtr()->name(), ns, resume); 1025504Snate@binkert.org 1035504Snate@binkert.org tc->suspend(); 1045504Snate@binkert.org if (tc->getKernelStats()) 1055504Snate@binkert.org tc->getKernelStats()->quiesce(); 1065504Snate@binkert.org} 1075504Snate@binkert.org 1085504Snate@binkert.orgvoid 1095504Snate@binkert.orgquiesceCycles(ThreadContext *tc, uint64_t cycles) 1105504Snate@binkert.org{ 1115529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_quiesce || cycles == 0) 1125504Snate@binkert.org return; 1135504Snate@binkert.org 1145504Snate@binkert.org EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); 1155504Snate@binkert.org 1165504Snate@binkert.org Tick resume = curTick + tc->getCpuPtr()->ticks(cycles); 1175504Snate@binkert.org 1185606Snate@binkert.org mainEventQueue.reschedule(quiesceEvent, resume, true); 1195504Snate@binkert.org 1205504Snate@binkert.org DPRINTF(Quiesce, "%s: quiesceCycles(%d) until %d\n", 1215504Snate@binkert.org tc->getCpuPtr()->name(), cycles, resume); 1225504Snate@binkert.org 1235504Snate@binkert.org tc->suspend(); 1245504Snate@binkert.org if (tc->getKernelStats()) 1255504Snate@binkert.org tc->getKernelStats()->quiesce(); 1265504Snate@binkert.org} 1275504Snate@binkert.org 1285504Snate@binkert.orguint64_t 1295504Snate@binkert.orgquiesceTime(ThreadContext *tc) 1305504Snate@binkert.org{ 1315504Snate@binkert.org return (tc->readLastActivate() - tc->readLastSuspend()) / Clock::Int::ns; 1325504Snate@binkert.org} 1335504Snate@binkert.org 1345780Ssteve.reinhardt@amd.com#endif 1355780Ssteve.reinhardt@amd.com 1365741Snate@binkert.orguint64_t 1375741Snate@binkert.orgrpns(ThreadContext *tc) 1385741Snate@binkert.org{ 1395741Snate@binkert.org return curTick / Clock::Int::ns; 1405741Snate@binkert.org} 1415741Snate@binkert.org 1425504Snate@binkert.orgvoid 1435808Snate@binkert.orgwakeCPU(ThreadContext *tc, uint64_t cpuid) 1445808Snate@binkert.org{ 1455808Snate@binkert.org System *sys = tc->getSystemPtr(); 1465808Snate@binkert.org ThreadContext *other_tc = sys->threadContexts[cpuid]; 1475808Snate@binkert.org if (other_tc->status() == ThreadContext::Suspended) 1485808Snate@binkert.org other_tc->activate(); 1495808Snate@binkert.org} 1505808Snate@binkert.org 1515808Snate@binkert.orgvoid 1525504Snate@binkert.orgm5exit(ThreadContext *tc, Tick delay) 1535504Snate@binkert.org{ 1545504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 1555606Snate@binkert.org Event *event = new SimLoopExitEvent("m5_exit instruction encountered", 0); 1565606Snate@binkert.org mainEventQueue.schedule(event, when); 1575504Snate@binkert.org} 1585504Snate@binkert.org 1595780Ssteve.reinhardt@amd.com#if FULL_SYSTEM 1605780Ssteve.reinhardt@amd.com 1615504Snate@binkert.orgvoid 1625504Snate@binkert.orgloadsymbol(ThreadContext *tc) 1635504Snate@binkert.org{ 1645504Snate@binkert.org const string &filename = tc->getCpuPtr()->system->params()->symbolfile; 1655504Snate@binkert.org if (filename.empty()) { 1665504Snate@binkert.org return; 167711SN/A } 168711SN/A 1695504Snate@binkert.org std::string buffer; 1705504Snate@binkert.org ifstream file(filename.c_str()); 171310SN/A 1725504Snate@binkert.org if (!file) 1735504Snate@binkert.org fatal("file error: Can't open symbol table file %s\n", filename); 1743373Sstever@eecs.umich.edu 1755504Snate@binkert.org while (!file.eof()) { 1765504Snate@binkert.org getline(file, buffer); 1775504Snate@binkert.org 1785504Snate@binkert.org if (buffer.empty()) 1795504Snate@binkert.org continue; 1805504Snate@binkert.org 1816227Snate@binkert.org string::size_type idx = buffer.find(' '); 1825504Snate@binkert.org if (idx == string::npos) 1835504Snate@binkert.org continue; 1845504Snate@binkert.org 1855504Snate@binkert.org string address = "0x" + buffer.substr(0, idx); 1865504Snate@binkert.org eat_white(address); 1875504Snate@binkert.org if (address.empty()) 1885504Snate@binkert.org continue; 1895504Snate@binkert.org 1905504Snate@binkert.org // Skip over letter and space 1915504Snate@binkert.org string symbol = buffer.substr(idx + 3); 1925504Snate@binkert.org eat_white(symbol); 1935504Snate@binkert.org if (symbol.empty()) 1945504Snate@binkert.org continue; 1955504Snate@binkert.org 1965504Snate@binkert.org Addr addr; 1975504Snate@binkert.org if (!to_number(address, addr)) 1985504Snate@binkert.org continue; 1995504Snate@binkert.org 2005504Snate@binkert.org if (!tc->getSystemPtr()->kernelSymtab->insert(addr, symbol)) 2015504Snate@binkert.org continue; 2025504Snate@binkert.org 2035504Snate@binkert.org 2045504Snate@binkert.org DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); 2055504Snate@binkert.org } 2065504Snate@binkert.org file.close(); 2075504Snate@binkert.org} 2085504Snate@binkert.org 2095504Snate@binkert.orgvoid 2105780Ssteve.reinhardt@amd.comaddsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr) 2115780Ssteve.reinhardt@amd.com{ 2125780Ssteve.reinhardt@amd.com char symb[100]; 2135780Ssteve.reinhardt@amd.com CopyStringOut(tc, symb, symbolAddr, 100); 2145780Ssteve.reinhardt@amd.com std::string symbol(symb); 2155780Ssteve.reinhardt@amd.com 2165780Ssteve.reinhardt@amd.com DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); 2175780Ssteve.reinhardt@amd.com 2185780Ssteve.reinhardt@amd.com tc->getSystemPtr()->kernelSymtab->insert(addr,symbol); 2195952Ssaidi@eecs.umich.edu debugSymbolTable->insert(addr,symbol); 2205780Ssteve.reinhardt@amd.com} 2215780Ssteve.reinhardt@amd.com 2225780Ssteve.reinhardt@amd.com#endif 2235780Ssteve.reinhardt@amd.com 2245780Ssteve.reinhardt@amd.com 2255780Ssteve.reinhardt@amd.comvoid 2265504Snate@binkert.orgresetstats(ThreadContext *tc, Tick delay, Tick period) 2275504Snate@binkert.org{ 2285529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_statistics_insts) 2295504Snate@binkert.org return; 2305504Snate@binkert.org 2315504Snate@binkert.org 2325504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 2335504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 2345504Snate@binkert.org 2355504Snate@binkert.org Stats::StatEvent(false, true, when, repeat); 2365504Snate@binkert.org} 2375504Snate@binkert.org 2385504Snate@binkert.orgvoid 2395504Snate@binkert.orgdumpstats(ThreadContext *tc, Tick delay, Tick period) 2405504Snate@binkert.org{ 2415529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_statistics_insts) 2425504Snate@binkert.org return; 2435504Snate@binkert.org 2445504Snate@binkert.org 2455504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 2465504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 2475504Snate@binkert.org 2485504Snate@binkert.org Stats::StatEvent(true, false, when, repeat); 2495504Snate@binkert.org} 2505504Snate@binkert.org 2515504Snate@binkert.orgvoid 2525504Snate@binkert.orgdumpresetstats(ThreadContext *tc, Tick delay, Tick period) 2535504Snate@binkert.org{ 2545529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_statistics_insts) 2555504Snate@binkert.org return; 2565504Snate@binkert.org 2575504Snate@binkert.org 2585504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 2595504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 2605504Snate@binkert.org 2615504Snate@binkert.org Stats::StatEvent(true, true, when, repeat); 2625504Snate@binkert.org} 2635504Snate@binkert.org 2645504Snate@binkert.orgvoid 2655504Snate@binkert.orgm5checkpoint(ThreadContext *tc, Tick delay, Tick period) 2665504Snate@binkert.org{ 2675529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_checkpoint_insts) 2685504Snate@binkert.org return; 2695504Snate@binkert.org 2705504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 2715504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 2725504Snate@binkert.org 2735606Snate@binkert.org Event *event = new SimLoopExitEvent("checkpoint", 0, repeat); 2745606Snate@binkert.org mainEventQueue.schedule(event, when); 2755504Snate@binkert.org} 2765504Snate@binkert.org 2775780Ssteve.reinhardt@amd.com#if FULL_SYSTEM 2785780Ssteve.reinhardt@amd.com 2795504Snate@binkert.orguint64_t 2805504Snate@binkert.orgreadfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset) 2815504Snate@binkert.org{ 2825504Snate@binkert.org const string &file = tc->getSystemPtr()->params()->readfile; 2835504Snate@binkert.org if (file.empty()) { 2845504Snate@binkert.org return ULL(0); 285310SN/A } 286299SN/A 2875504Snate@binkert.org uint64_t result = 0; 2882188SN/A 2895504Snate@binkert.org int fd = ::open(file.c_str(), O_RDONLY, 0); 2905504Snate@binkert.org if (fd < 0) 2915504Snate@binkert.org panic("could not open file %s\n", file); 2922235SN/A 2935504Snate@binkert.org if (::lseek(fd, offset, SEEK_SET) < 0) 2945504Snate@binkert.org panic("could not seek: %s", strerror(errno)); 2953368Sstever@eecs.umich.edu 2965504Snate@binkert.org char *buf = new char[len]; 2975504Snate@binkert.org char *p = buf; 2985504Snate@binkert.org while (len > 0) { 2995504Snate@binkert.org int bytes = ::read(fd, p, len); 3005504Snate@binkert.org if (bytes <= 0) 3015504Snate@binkert.org break; 3023368Sstever@eecs.umich.edu 3035504Snate@binkert.org p += bytes; 3045504Snate@binkert.org result += bytes; 3055504Snate@binkert.org len -= bytes; 3062188SN/A } 3072188SN/A 3085504Snate@binkert.org close(fd); 3095504Snate@binkert.org CopyIn(tc, vaddr, buf, result); 3105504Snate@binkert.org delete [] buf; 3115504Snate@binkert.org return result; 3125504Snate@binkert.org} 3132188SN/A 3145780Ssteve.reinhardt@amd.com#endif 3155780Ssteve.reinhardt@amd.com 3165504Snate@binkert.orgvoid 3175504Snate@binkert.orgdebugbreak(ThreadContext *tc) 3185504Snate@binkert.org{ 3195504Snate@binkert.org debug_break(); 3205504Snate@binkert.org} 3212235SN/A 3225504Snate@binkert.orgvoid 3235504Snate@binkert.orgswitchcpu(ThreadContext *tc) 3245504Snate@binkert.org{ 3255504Snate@binkert.org exitSimLoop("switchcpu"); 3265504Snate@binkert.org} 3273368Sstever@eecs.umich.edu 3285504Snate@binkert.org/* namespace PseudoInst */ } 329