/* * Copyright (c) 2003-2006 The Regents of The University of Michigan * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer; * redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution; * neither the name of the copyright holders nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Authors: Nathan Binkert */ #include #include #include #include #include #include "arch/vtophys.hh" #include "base/annotate.hh" #include "cpu/base.hh" #include "cpu/thread_context.hh" #include "cpu/quiesce_event.hh" #include "arch/kernel_stats.hh" #include "sim/pseudo_inst.hh" #include "sim/serialize.hh" #include "sim/sim_exit.hh" #include "sim/stat_control.hh" #include "sim/stats.hh" #include "sim/system.hh" #include "sim/debug.hh" #include "sim/vptr.hh" using namespace std; using namespace Stats; using namespace TheISA; namespace PseudoInst { void arm(ThreadContext *tc) { if (tc->getKernelStats()) tc->getKernelStats()->arm(); } void quiesce(ThreadContext *tc) { if (!tc->getCpuPtr()->params->do_quiesce) return; DPRINTF(Quiesce, "%s: quiesce()\n", tc->getCpuPtr()->name()); tc->suspend(); if (tc->getKernelStats()) tc->getKernelStats()->quiesce(); } void quiesceNs(ThreadContext *tc, uint64_t ns) { if (!tc->getCpuPtr()->params->do_quiesce || ns == 0) return; EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); Tick resume = curTick + Clock::Int::ns * ns; if (quiesceEvent->scheduled()) quiesceEvent->reschedule(resume); else quiesceEvent->schedule(resume); DPRINTF(Quiesce, "%s: quiesceNs(%d) until %d\n", tc->getCpuPtr()->name(), ns, resume); tc->suspend(); if (tc->getKernelStats()) tc->getKernelStats()->quiesce(); } void quiesceCycles(ThreadContext *tc, uint64_t cycles) { if (!tc->getCpuPtr()->params->do_quiesce || cycles == 0) return; EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); Tick resume = curTick + tc->getCpuPtr()->cycles(cycles); if (quiesceEvent->scheduled()) quiesceEvent->reschedule(resume); else quiesceEvent->schedule(resume); DPRINTF(Quiesce, "%s: quiesceCycles(%d) until %d\n", tc->getCpuPtr()->name(), cycles, resume); tc->suspend(); if (tc->getKernelStats()) tc->getKernelStats()->quiesce(); } uint64_t quiesceTime(ThreadContext *tc) { return (tc->readLastActivate() - tc->readLastSuspend()) / Clock::Int::ns; } void m5exit_old(ThreadContext *tc) { exitSimLoop("m5_exit_old instruction encountered"); } void m5exit(ThreadContext *tc, Tick delay) { Tick when = curTick + delay * Clock::Int::ns; schedExitSimLoop("m5_exit instruction encountered", when); } void loadsymbol(ThreadContext *tc) { const string &filename = tc->getCpuPtr()->system->params()->symbolfile; if (filename.empty()) { return; } std::string buffer; ifstream file(filename.c_str()); if (!file) fatal("file error: Can't open symbol table file %s\n", filename); while (!file.eof()) { getline(file, buffer); if (buffer.empty()) continue; int idx = buffer.find(' '); if (idx == string::npos) continue; string address = "0x" + buffer.substr(0, idx); eat_white(address); if (address.empty()) continue; // Skip over letter and space string symbol = buffer.substr(idx + 3); eat_white(symbol); if (symbol.empty()) continue; Addr addr; if (!to_number(address, addr)) continue; if (!tc->getSystemPtr()->kernelSymtab->insert(addr, symbol)) continue; DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); } file.close(); } void resetstats(ThreadContext *tc, Tick delay, Tick period) { if (!tc->getCpuPtr()->params->do_statistics_insts) return; Tick when = curTick + delay * Clock::Int::ns; Tick repeat = period * Clock::Int::ns; Stats::StatEvent(false, true, when, repeat); } void dumpstats(ThreadContext *tc, Tick delay, Tick period) { if (!tc->getCpuPtr()->params->do_statistics_insts) return; Tick when = curTick + delay * Clock::Int::ns; Tick repeat = period * Clock::Int::ns; Stats::StatEvent(true, false, when, repeat); } void addsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr) { char symb[100]; CopyStringOut(tc, symb, symbolAddr, 100); std::string symbol(symb); DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); tc->getSystemPtr()->kernelSymtab->insert(addr,symbol); } void anBegin(ThreadContext *tc, uint64_t cur) { Annotate::annotations.add(tc->getSystemPtr(), 0, cur >> 32, cur & 0xFFFFFFFF, 0,0); } void anWait(ThreadContext *tc, uint64_t cur, uint64_t wait) { Annotate::annotations.add(tc->getSystemPtr(), 0, cur >> 32, cur & 0xFFFFFFFF, wait >> 32, wait & 0xFFFFFFFF); } void dumpresetstats(ThreadContext *tc, Tick delay, Tick period) { if (!tc->getCpuPtr()->params->do_statistics_insts) return; Tick when = curTick + delay * Clock::Int::ns; Tick repeat = period * Clock::Int::ns; Stats::StatEvent(true, true, when, repeat); } void m5checkpoint(ThreadContext *tc, Tick delay, Tick period) { if (!tc->getCpuPtr()->params->do_checkpoint_insts) return; Tick when = curTick + delay * Clock::Int::ns; Tick repeat = period * Clock::Int::ns; schedExitSimLoop("checkpoint", when, repeat); } uint64_t readfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset) { const string &file = tc->getSystemPtr()->params()->readfile; if (file.empty()) { return ULL(0); } uint64_t result = 0; int fd = ::open(file.c_str(), O_RDONLY, 0); if (fd < 0) panic("could not open file %s\n", file); if (::lseek(fd, offset, SEEK_SET) < 0) panic("could not seek: %s", strerror(errno)); char *buf = new char[len]; char *p = buf; while (len > 0) { int bytes = ::read(fd, p, len); if (bytes <= 0) break; p += bytes; result += bytes; len -= bytes; } close(fd); CopyIn(tc, vaddr, buf, result); delete [] buf; return result; } void debugbreak(ThreadContext *tc) { debug_break(); } void switchcpu(ThreadContext *tc) { exitSimLoop("switchcpu"); } }