pseudo_inst.cc revision 5504
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" 393089Ssaidi@eecs.umich.edu#include "base/annotate.hh" 401717SN/A#include "cpu/base.hh" 412680Sktlim@umich.edu#include "cpu/thread_context.hh" 422313SN/A#include "cpu/quiesce_event.hh" 433565Sgblack@eecs.umich.edu#include "arch/kernel_stats.hh" 443565Sgblack@eecs.umich.edu#include "sim/pseudo_inst.hh" 45298SN/A#include "sim/serialize.hh" 46298SN/A#include "sim/sim_exit.hh" 47695SN/A#include "sim/stat_control.hh" 48695SN/A#include "sim/stats.hh" 49954SN/A#include "sim/system.hh" 501052SN/A#include "sim/debug.hh" 512080SN/A#include "sim/vptr.hh" 52298SN/A 53299SN/Ausing namespace std; 541052SN/A 55729SN/Ausing namespace Stats; 562107SN/Ausing namespace TheISA; 57298SN/A 585504Snate@binkert.orgnamespace PseudoInst { 595504Snate@binkert.org 605504Snate@binkert.orgvoid 615504Snate@binkert.orgarm(ThreadContext *tc) 62298SN/A{ 635504Snate@binkert.org if (tc->getKernelStats()) 645504Snate@binkert.org tc->getKernelStats()->arm(); 655504Snate@binkert.org} 665504Snate@binkert.org 675504Snate@binkert.orgvoid 685504Snate@binkert.orgquiesce(ThreadContext *tc) 695504Snate@binkert.org{ 705504Snate@binkert.org if (!tc->getCpuPtr()->params->do_quiesce) 715504Snate@binkert.org return; 725504Snate@binkert.org 735504Snate@binkert.org DPRINTF(Quiesce, "%s: quiesce()\n", tc->getCpuPtr()->name()); 745504Snate@binkert.org 755504Snate@binkert.org tc->suspend(); 765504Snate@binkert.org if (tc->getKernelStats()) 775504Snate@binkert.org tc->getKernelStats()->quiesce(); 785504Snate@binkert.org} 795504Snate@binkert.org 805504Snate@binkert.orgvoid 815504Snate@binkert.orgquiesceNs(ThreadContext *tc, uint64_t ns) 825504Snate@binkert.org{ 835504Snate@binkert.org if (!tc->getCpuPtr()->params->do_quiesce || ns == 0) 845504Snate@binkert.org return; 855504Snate@binkert.org 865504Snate@binkert.org EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); 875504Snate@binkert.org 885504Snate@binkert.org Tick resume = curTick + Clock::Int::ns * ns; 895504Snate@binkert.org 905504Snate@binkert.org quiesceEvent->reschedule(resume, true); 915504Snate@binkert.org 925504Snate@binkert.org DPRINTF(Quiesce, "%s: quiesceNs(%d) until %d\n", 935504Snate@binkert.org tc->getCpuPtr()->name(), ns, resume); 945504Snate@binkert.org 955504Snate@binkert.org tc->suspend(); 965504Snate@binkert.org if (tc->getKernelStats()) 975504Snate@binkert.org tc->getKernelStats()->quiesce(); 985504Snate@binkert.org} 995504Snate@binkert.org 1005504Snate@binkert.orgvoid 1015504Snate@binkert.orgquiesceCycles(ThreadContext *tc, uint64_t cycles) 1025504Snate@binkert.org{ 1035504Snate@binkert.org if (!tc->getCpuPtr()->params->do_quiesce || cycles == 0) 1045504Snate@binkert.org return; 1055504Snate@binkert.org 1065504Snate@binkert.org EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); 1075504Snate@binkert.org 1085504Snate@binkert.org Tick resume = curTick + tc->getCpuPtr()->ticks(cycles); 1095504Snate@binkert.org 1105504Snate@binkert.org quiesceEvent->reschedule(resume, true); 1115504Snate@binkert.org 1125504Snate@binkert.org DPRINTF(Quiesce, "%s: quiesceCycles(%d) until %d\n", 1135504Snate@binkert.org tc->getCpuPtr()->name(), cycles, resume); 1145504Snate@binkert.org 1155504Snate@binkert.org tc->suspend(); 1165504Snate@binkert.org if (tc->getKernelStats()) 1175504Snate@binkert.org tc->getKernelStats()->quiesce(); 1185504Snate@binkert.org} 1195504Snate@binkert.org 1205504Snate@binkert.orguint64_t 1215504Snate@binkert.orgquiesceTime(ThreadContext *tc) 1225504Snate@binkert.org{ 1235504Snate@binkert.org return (tc->readLastActivate() - tc->readLastSuspend()) / Clock::Int::ns; 1245504Snate@binkert.org} 1255504Snate@binkert.org 1265504Snate@binkert.orgvoid 1275504Snate@binkert.orgm5exit_old(ThreadContext *tc) 1285504Snate@binkert.org{ 1295504Snate@binkert.org exitSimLoop("m5_exit_old instruction encountered"); 1305504Snate@binkert.org} 1315504Snate@binkert.org 1325504Snate@binkert.orgvoid 1335504Snate@binkert.orgm5exit(ThreadContext *tc, Tick delay) 1345504Snate@binkert.org{ 1355504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 1365504Snate@binkert.org schedExitSimLoop("m5_exit instruction encountered", when); 1375504Snate@binkert.org} 1385504Snate@binkert.org 1395504Snate@binkert.orgvoid 1405504Snate@binkert.orgloadsymbol(ThreadContext *tc) 1415504Snate@binkert.org{ 1425504Snate@binkert.org const string &filename = tc->getCpuPtr()->system->params()->symbolfile; 1435504Snate@binkert.org if (filename.empty()) { 1445504Snate@binkert.org return; 145711SN/A } 146711SN/A 1475504Snate@binkert.org std::string buffer; 1485504Snate@binkert.org ifstream file(filename.c_str()); 149310SN/A 1505504Snate@binkert.org if (!file) 1515504Snate@binkert.org fatal("file error: Can't open symbol table file %s\n", filename); 1523373Sstever@eecs.umich.edu 1535504Snate@binkert.org while (!file.eof()) { 1545504Snate@binkert.org getline(file, buffer); 1555504Snate@binkert.org 1565504Snate@binkert.org if (buffer.empty()) 1575504Snate@binkert.org continue; 1585504Snate@binkert.org 1595504Snate@binkert.org int idx = buffer.find(' '); 1605504Snate@binkert.org if (idx == string::npos) 1615504Snate@binkert.org continue; 1625504Snate@binkert.org 1635504Snate@binkert.org string address = "0x" + buffer.substr(0, idx); 1645504Snate@binkert.org eat_white(address); 1655504Snate@binkert.org if (address.empty()) 1665504Snate@binkert.org continue; 1675504Snate@binkert.org 1685504Snate@binkert.org // Skip over letter and space 1695504Snate@binkert.org string symbol = buffer.substr(idx + 3); 1705504Snate@binkert.org eat_white(symbol); 1715504Snate@binkert.org if (symbol.empty()) 1725504Snate@binkert.org continue; 1735504Snate@binkert.org 1745504Snate@binkert.org Addr addr; 1755504Snate@binkert.org if (!to_number(address, addr)) 1765504Snate@binkert.org continue; 1775504Snate@binkert.org 1785504Snate@binkert.org if (!tc->getSystemPtr()->kernelSymtab->insert(addr, symbol)) 1795504Snate@binkert.org continue; 1805504Snate@binkert.org 1815504Snate@binkert.org 1825504Snate@binkert.org DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); 1835504Snate@binkert.org } 1845504Snate@binkert.org file.close(); 1855504Snate@binkert.org} 1865504Snate@binkert.org 1875504Snate@binkert.orgvoid 1885504Snate@binkert.orgresetstats(ThreadContext *tc, Tick delay, Tick period) 1895504Snate@binkert.org{ 1905504Snate@binkert.org if (!tc->getCpuPtr()->params->do_statistics_insts) 1915504Snate@binkert.org return; 1925504Snate@binkert.org 1935504Snate@binkert.org 1945504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 1955504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 1965504Snate@binkert.org 1975504Snate@binkert.org Stats::StatEvent(false, true, when, repeat); 1985504Snate@binkert.org} 1995504Snate@binkert.org 2005504Snate@binkert.orgvoid 2015504Snate@binkert.orgdumpstats(ThreadContext *tc, Tick delay, Tick period) 2025504Snate@binkert.org{ 2035504Snate@binkert.org if (!tc->getCpuPtr()->params->do_statistics_insts) 2045504Snate@binkert.org return; 2055504Snate@binkert.org 2065504Snate@binkert.org 2075504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 2085504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 2095504Snate@binkert.org 2105504Snate@binkert.org Stats::StatEvent(true, false, when, repeat); 2115504Snate@binkert.org} 2125504Snate@binkert.org 2135504Snate@binkert.orgvoid 2145504Snate@binkert.orgaddsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr) 2155504Snate@binkert.org{ 2165504Snate@binkert.org char symb[100]; 2175504Snate@binkert.org CopyStringOut(tc, symb, symbolAddr, 100); 2185504Snate@binkert.org std::string symbol(symb); 2195504Snate@binkert.org 2205504Snate@binkert.org DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); 2215504Snate@binkert.org 2225504Snate@binkert.org tc->getSystemPtr()->kernelSymtab->insert(addr,symbol); 2235504Snate@binkert.org} 2245504Snate@binkert.org 2255504Snate@binkert.orgvoid 2265504Snate@binkert.organBegin(ThreadContext *tc, uint64_t cur) 2275504Snate@binkert.org{ 2285504Snate@binkert.org Annotate::annotations.add(tc->getSystemPtr(), 0, cur >> 32, cur & 2295504Snate@binkert.org 0xFFFFFFFF, 0,0); 2305504Snate@binkert.org} 2315504Snate@binkert.org 2325504Snate@binkert.orgvoid 2335504Snate@binkert.organWait(ThreadContext *tc, uint64_t cur, uint64_t wait) 2345504Snate@binkert.org{ 2355504Snate@binkert.org Annotate::annotations.add(tc->getSystemPtr(), 0, cur >> 32, cur & 2365504Snate@binkert.org 0xFFFFFFFF, wait >> 32, wait & 0xFFFFFFFF); 2375504Snate@binkert.org} 2385504Snate@binkert.org 2395504Snate@binkert.org 2405504Snate@binkert.orgvoid 2415504Snate@binkert.orgdumpresetstats(ThreadContext *tc, Tick delay, Tick period) 2425504Snate@binkert.org{ 2435504Snate@binkert.org if (!tc->getCpuPtr()->params->do_statistics_insts) 2445504Snate@binkert.org return; 2455504Snate@binkert.org 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 2505504Snate@binkert.org Stats::StatEvent(true, true, when, repeat); 2515504Snate@binkert.org} 2525504Snate@binkert.org 2535504Snate@binkert.orgvoid 2545504Snate@binkert.orgm5checkpoint(ThreadContext *tc, Tick delay, Tick period) 2555504Snate@binkert.org{ 2565504Snate@binkert.org if (!tc->getCpuPtr()->params->do_checkpoint_insts) 2575504Snate@binkert.org return; 2585504Snate@binkert.org 2595504Snate@binkert.org Tick when = curTick + delay * Clock::Int::ns; 2605504Snate@binkert.org Tick repeat = period * Clock::Int::ns; 2615504Snate@binkert.org 2625504Snate@binkert.org schedExitSimLoop("checkpoint", when, repeat); 2635504Snate@binkert.org} 2645504Snate@binkert.org 2655504Snate@binkert.orguint64_t 2665504Snate@binkert.orgreadfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset) 2675504Snate@binkert.org{ 2685504Snate@binkert.org const string &file = tc->getSystemPtr()->params()->readfile; 2695504Snate@binkert.org if (file.empty()) { 2705504Snate@binkert.org return ULL(0); 271310SN/A } 272299SN/A 2735504Snate@binkert.org uint64_t result = 0; 2742188SN/A 2755504Snate@binkert.org int fd = ::open(file.c_str(), O_RDONLY, 0); 2765504Snate@binkert.org if (fd < 0) 2775504Snate@binkert.org panic("could not open file %s\n", file); 2782235SN/A 2795504Snate@binkert.org if (::lseek(fd, offset, SEEK_SET) < 0) 2805504Snate@binkert.org panic("could not seek: %s", strerror(errno)); 2813368Sstever@eecs.umich.edu 2825504Snate@binkert.org char *buf = new char[len]; 2835504Snate@binkert.org char *p = buf; 2845504Snate@binkert.org while (len > 0) { 2855504Snate@binkert.org int bytes = ::read(fd, p, len); 2865504Snate@binkert.org if (bytes <= 0) 2875504Snate@binkert.org break; 2883368Sstever@eecs.umich.edu 2895504Snate@binkert.org p += bytes; 2905504Snate@binkert.org result += bytes; 2915504Snate@binkert.org len -= bytes; 2922188SN/A } 2932188SN/A 2945504Snate@binkert.org close(fd); 2955504Snate@binkert.org CopyIn(tc, vaddr, buf, result); 2965504Snate@binkert.org delete [] buf; 2975504Snate@binkert.org return result; 2985504Snate@binkert.org} 2992188SN/A 3005504Snate@binkert.orgvoid 3015504Snate@binkert.orgdebugbreak(ThreadContext *tc) 3025504Snate@binkert.org{ 3035504Snate@binkert.org debug_break(); 3045504Snate@binkert.org} 3052235SN/A 3065504Snate@binkert.orgvoid 3075504Snate@binkert.orgswitchcpu(ThreadContext *tc) 3085504Snate@binkert.org{ 3095504Snate@binkert.org exitSimLoop("switchcpu"); 3105504Snate@binkert.org} 3113368Sstever@eecs.umich.edu 3125504Snate@binkert.org/* namespace PseudoInst */ } 313