pseudo_inst.cc revision 5741
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 385529Snate@binkert.org#include "arch/kernel_stats.hh" 392170SN/A#include "arch/vtophys.hh" 403089Ssaidi@eecs.umich.edu#include "base/annotate.hh" 411717SN/A#include "cpu/base.hh" 422680Sktlim@umich.edu#include "cpu/thread_context.hh" 432313SN/A#include "cpu/quiesce_event.hh" 445529Snate@binkert.org#include "params/BaseCPU.hh" 453565Sgblack@eecs.umich.edu#include "sim/pseudo_inst.hh" 46298SN/A#include "sim/serialize.hh" 475606Snate@binkert.org#include "sim/sim_events.hh" 48298SN/A#include "sim/sim_exit.hh" 49695SN/A#include "sim/stat_control.hh" 50695SN/A#include "sim/stats.hh" 51954SN/A#include "sim/system.hh" 521052SN/A#include "sim/debug.hh" 532080SN/A#include "sim/vptr.hh" 54298SN/A 55299SN/Ausing namespace std; 561052SN/A 57729SN/Ausing namespace Stats; 582107SN/Ausing namespace TheISA; 59298SN/A 605504Snate@binkert.orgnamespace PseudoInst { 615504Snate@binkert.org 625504Snate@binkert.orgvoid 635504Snate@binkert.orgarm(ThreadContext *tc) 64298SN/A{ 655504Snate@binkert.org if (tc->getKernelStats()) 665504Snate@binkert.org tc->getKernelStats()->arm(); 675504Snate@binkert.org} 685504Snate@binkert.org 695504Snate@binkert.orgvoid 705504Snate@binkert.orgquiesce(ThreadContext *tc) 715504Snate@binkert.org{ 725529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_quiesce) 735504Snate@binkert.org return; 745504Snate@binkert.org 755504Snate@binkert.org DPRINTF(Quiesce, "%s: quiesce()\n", tc->getCpuPtr()->name()); 765504Snate@binkert.org 775504Snate@binkert.org tc->suspend(); 785504Snate@binkert.org if (tc->getKernelStats()) 795504Snate@binkert.org tc->getKernelStats()->quiesce(); 805504Snate@binkert.org} 815504Snate@binkert.org 825504Snate@binkert.orgvoid 835504Snate@binkert.orgquiesceNs(ThreadContext *tc, uint64_t ns) 845504Snate@binkert.org{ 855529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_quiesce || ns == 0) 865504Snate@binkert.org return; 875504Snate@binkert.org 885504Snate@binkert.org EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); 895504Snate@binkert.org 905504Snate@binkert.org Tick resume = curTick + Clock::Int::ns * ns; 915504Snate@binkert.org 925606Snate@binkert.org mainEventQueue.reschedule(quiesceEvent, resume, true); 935504Snate@binkert.org 945504Snate@binkert.org DPRINTF(Quiesce, "%s: quiesceNs(%d) until %d\n", 955504Snate@binkert.org tc->getCpuPtr()->name(), ns, resume); 965504Snate@binkert.org 975504Snate@binkert.org tc->suspend(); 985504Snate@binkert.org if (tc->getKernelStats()) 995504Snate@binkert.org tc->getKernelStats()->quiesce(); 1005504Snate@binkert.org} 1015504Snate@binkert.org 1025504Snate@binkert.orgvoid 1035504Snate@binkert.orgquiesceCycles(ThreadContext *tc, uint64_t cycles) 1045504Snate@binkert.org{ 1055529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_quiesce || cycles == 0) 1065504Snate@binkert.org return; 1075504Snate@binkert.org 1085504Snate@binkert.org EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); 1095504Snate@binkert.org 1105504Snate@binkert.org Tick resume = curTick + tc->getCpuPtr()->ticks(cycles); 1115504Snate@binkert.org 1125606Snate@binkert.org mainEventQueue.reschedule(quiesceEvent, resume, true); 1135504Snate@binkert.org 1145504Snate@binkert.org DPRINTF(Quiesce, "%s: quiesceCycles(%d) until %d\n", 1155504Snate@binkert.org tc->getCpuPtr()->name(), cycles, resume); 1165504Snate@binkert.org 1175504Snate@binkert.org tc->suspend(); 1185504Snate@binkert.org if (tc->getKernelStats()) 1195504Snate@binkert.org tc->getKernelStats()->quiesce(); 1205504Snate@binkert.org} 1215504Snate@binkert.org 1225504Snate@binkert.orguint64_t 1235504Snate@binkert.orgquiesceTime(ThreadContext *tc) 1245504Snate@binkert.org{ 1255504Snate@binkert.org return (tc->readLastActivate() - tc->readLastSuspend()) / Clock::Int::ns; 1265504Snate@binkert.org} 1275504Snate@binkert.org 1285741Snate@binkert.orguint64_t 1295741Snate@binkert.orgrpns(ThreadContext *tc) 1305741Snate@binkert.org{ 1315741Snate@binkert.org return curTick / Clock::Int::ns; 1325741Snate@binkert.org} 1335741Snate@binkert.org 1345504Snate@binkert.orgvoid 1355504Snate@binkert.orgm5exit(ThreadContext *tc, Tick delay) 1365504Snate@binkert.org{ 1375504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 1385606Snate@binkert.org Event *event = new SimLoopExitEvent("m5_exit instruction encountered", 0); 1395606Snate@binkert.org mainEventQueue.schedule(event, when); 1405504Snate@binkert.org} 1415504Snate@binkert.org 1425504Snate@binkert.orgvoid 1435504Snate@binkert.orgloadsymbol(ThreadContext *tc) 1445504Snate@binkert.org{ 1455504Snate@binkert.org const string &filename = tc->getCpuPtr()->system->params()->symbolfile; 1465504Snate@binkert.org if (filename.empty()) { 1475504Snate@binkert.org return; 148711SN/A } 149711SN/A 1505504Snate@binkert.org std::string buffer; 1515504Snate@binkert.org ifstream file(filename.c_str()); 152310SN/A 1535504Snate@binkert.org if (!file) 1545504Snate@binkert.org fatal("file error: Can't open symbol table file %s\n", filename); 1553373Sstever@eecs.umich.edu 1565504Snate@binkert.org while (!file.eof()) { 1575504Snate@binkert.org getline(file, buffer); 1585504Snate@binkert.org 1595504Snate@binkert.org if (buffer.empty()) 1605504Snate@binkert.org continue; 1615504Snate@binkert.org 1625504Snate@binkert.org int idx = buffer.find(' '); 1635504Snate@binkert.org if (idx == string::npos) 1645504Snate@binkert.org continue; 1655504Snate@binkert.org 1665504Snate@binkert.org string address = "0x" + buffer.substr(0, idx); 1675504Snate@binkert.org eat_white(address); 1685504Snate@binkert.org if (address.empty()) 1695504Snate@binkert.org continue; 1705504Snate@binkert.org 1715504Snate@binkert.org // Skip over letter and space 1725504Snate@binkert.org string symbol = buffer.substr(idx + 3); 1735504Snate@binkert.org eat_white(symbol); 1745504Snate@binkert.org if (symbol.empty()) 1755504Snate@binkert.org continue; 1765504Snate@binkert.org 1775504Snate@binkert.org Addr addr; 1785504Snate@binkert.org if (!to_number(address, addr)) 1795504Snate@binkert.org continue; 1805504Snate@binkert.org 1815504Snate@binkert.org if (!tc->getSystemPtr()->kernelSymtab->insert(addr, symbol)) 1825504Snate@binkert.org continue; 1835504Snate@binkert.org 1845504Snate@binkert.org 1855504Snate@binkert.org DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); 1865504Snate@binkert.org } 1875504Snate@binkert.org file.close(); 1885504Snate@binkert.org} 1895504Snate@binkert.org 1905504Snate@binkert.orgvoid 1915504Snate@binkert.orgresetstats(ThreadContext *tc, Tick delay, Tick period) 1925504Snate@binkert.org{ 1935529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_statistics_insts) 1945504Snate@binkert.org return; 1955504Snate@binkert.org 1965504Snate@binkert.org 1975504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 1985504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 1995504Snate@binkert.org 2005504Snate@binkert.org Stats::StatEvent(false, true, when, repeat); 2015504Snate@binkert.org} 2025504Snate@binkert.org 2035504Snate@binkert.orgvoid 2045504Snate@binkert.orgdumpstats(ThreadContext *tc, Tick delay, Tick period) 2055504Snate@binkert.org{ 2065529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_statistics_insts) 2075504Snate@binkert.org return; 2085504Snate@binkert.org 2095504Snate@binkert.org 2105504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 2115504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 2125504Snate@binkert.org 2135504Snate@binkert.org Stats::StatEvent(true, false, when, repeat); 2145504Snate@binkert.org} 2155504Snate@binkert.org 2165504Snate@binkert.orgvoid 2175504Snate@binkert.orgaddsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr) 2185504Snate@binkert.org{ 2195504Snate@binkert.org char symb[100]; 2205504Snate@binkert.org CopyStringOut(tc, symb, symbolAddr, 100); 2215504Snate@binkert.org std::string symbol(symb); 2225504Snate@binkert.org 2235504Snate@binkert.org DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); 2245504Snate@binkert.org 2255504Snate@binkert.org tc->getSystemPtr()->kernelSymtab->insert(addr,symbol); 2265504Snate@binkert.org} 2275504Snate@binkert.org 2285504Snate@binkert.orgvoid 2295504Snate@binkert.orgdumpresetstats(ThreadContext *tc, Tick delay, Tick period) 2305504Snate@binkert.org{ 2315529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_statistics_insts) 2325504Snate@binkert.org return; 2335504Snate@binkert.org 2345504Snate@binkert.org 2355504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 2365504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 2375504Snate@binkert.org 2385504Snate@binkert.org Stats::StatEvent(true, true, when, repeat); 2395504Snate@binkert.org} 2405504Snate@binkert.org 2415504Snate@binkert.orgvoid 2425504Snate@binkert.orgm5checkpoint(ThreadContext *tc, Tick delay, Tick period) 2435504Snate@binkert.org{ 2445529Snate@binkert.org if (!tc->getCpuPtr()->params()->do_checkpoint_insts) 2455504Snate@binkert.org return; 2465504Snate@binkert.org 2475504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 2485504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 2495504Snate@binkert.org 2505606Snate@binkert.org Event *event = new SimLoopExitEvent("checkpoint", 0, repeat); 2515606Snate@binkert.org mainEventQueue.schedule(event, when); 2525504Snate@binkert.org} 2535504Snate@binkert.org 2545504Snate@binkert.orguint64_t 2555504Snate@binkert.orgreadfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset) 2565504Snate@binkert.org{ 2575504Snate@binkert.org const string &file = tc->getSystemPtr()->params()->readfile; 2585504Snate@binkert.org if (file.empty()) { 2595504Snate@binkert.org return ULL(0); 260310SN/A } 261299SN/A 2625504Snate@binkert.org uint64_t result = 0; 2632188SN/A 2645504Snate@binkert.org int fd = ::open(file.c_str(), O_RDONLY, 0); 2655504Snate@binkert.org if (fd < 0) 2665504Snate@binkert.org panic("could not open file %s\n", file); 2672235SN/A 2685504Snate@binkert.org if (::lseek(fd, offset, SEEK_SET) < 0) 2695504Snate@binkert.org panic("could not seek: %s", strerror(errno)); 2703368Sstever@eecs.umich.edu 2715504Snate@binkert.org char *buf = new char[len]; 2725504Snate@binkert.org char *p = buf; 2735504Snate@binkert.org while (len > 0) { 2745504Snate@binkert.org int bytes = ::read(fd, p, len); 2755504Snate@binkert.org if (bytes <= 0) 2765504Snate@binkert.org break; 2773368Sstever@eecs.umich.edu 2785504Snate@binkert.org p += bytes; 2795504Snate@binkert.org result += bytes; 2805504Snate@binkert.org len -= bytes; 2812188SN/A } 2822188SN/A 2835504Snate@binkert.org close(fd); 2845504Snate@binkert.org CopyIn(tc, vaddr, buf, result); 2855504Snate@binkert.org delete [] buf; 2865504Snate@binkert.org return result; 2875504Snate@binkert.org} 2882188SN/A 2895504Snate@binkert.orgvoid 2905504Snate@binkert.orgdebugbreak(ThreadContext *tc) 2915504Snate@binkert.org{ 2925504Snate@binkert.org debug_break(); 2935504Snate@binkert.org} 2942235SN/A 2955504Snate@binkert.orgvoid 2965504Snate@binkert.orgswitchcpu(ThreadContext *tc) 2975504Snate@binkert.org{ 2985504Snate@binkert.org exitSimLoop("switchcpu"); 2995504Snate@binkert.org} 3003368Sstever@eecs.umich.edu 3015504Snate@binkert.org/* namespace PseudoInst */ } 302