/*
+ * Copyright (c) 2010-2012 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * Copyright (c) 2011 Advanced Micro Devices, Inc.
* Copyright (c) 2003-2006 The Regents of The University of Michigan
* All rights reserved.
*
* Authors: Nathan Binkert
*/
-#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
+#include <cerrno>
+#include <fstream>
#include <string>
+#include <vector>
-#include "sim/pseudo_inst.hh"
+#include "arch/kernel_stats.hh"
+#include "arch/utility.hh"
#include "arch/vtophys.hh"
-#include "base/annotate.hh"
+#include "arch/pseudo_inst.hh"
+#include "base/debug.hh"
+#include "base/output.hh"
+#include "config/the_isa.hh"
#include "cpu/base.hh"
-#include "cpu/thread_context.hh"
#include "cpu/quiesce_event.hh"
-#include "kern/kernel_stats.hh"
-#include "sim/param.hh"
+#include "cpu/thread_context.hh"
+#include "debug/Loader.hh"
+#include "debug/PseudoInst.hh"
+#include "debug/Quiesce.hh"
+#include "debug/WorkItems.hh"
+#include "params/BaseCPU.hh"
+#include "sim/full_system.hh"
+#include "sim/process.hh"
+#include "sim/pseudo_inst.hh"
#include "sim/serialize.hh"
+#include "sim/sim_events.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 AlphaPseudo
+namespace PseudoInst {
+
+static inline void
+panicFsOnlyPseudoInst(const char *name)
+{
+ panic("Pseudo inst \"%s\" is only available in Full System mode.");
+}
+
+uint64_t
+pseudoInst(ThreadContext *tc, uint8_t func, uint8_t subfunc)
{
- bool doStatisticsInsts;
- bool doCheckpointInsts;
- bool doQuiesce;
-
- void
- arm(ThreadContext *tc)
- {
- if (tc->getKernelStats())
- tc->getKernelStats()->arm();
+ uint64_t args[4];
+
+ DPRINTF(PseudoInst, "PseudoInst::pseudoInst(%i, %i)\n", func, subfunc);
+
+ // We need to do this in a slightly convoluted way since
+ // getArgument() might have side-effects on arg_num. We could have
+ // used the Argument class, but due to the possible side effects
+ // from getArgument, it'd most likely break.
+ int arg_num(0);
+ for (int i = 0; i < sizeof(args) / sizeof(*args); ++i) {
+ args[arg_num] = getArgument(tc, arg_num, sizeof(uint64_t), false);
+ ++arg_num;
}
- void
- quiesce(ThreadContext *tc)
- {
- if (!doQuiesce)
- return;
+ switch (func) {
+ case 0x00: // arm_func
+ arm(tc);
+ break;
- tc->suspend();
- if (tc->getKernelStats())
- tc->getKernelStats()->quiesce();
- }
+ case 0x01: // quiesce_func
+ quiesce(tc);
+ break;
- void
- quiesceNs(ThreadContext *tc, uint64_t ns)
- {
- if (!doQuiesce || ns == 0)
- return;
+ case 0x02: // quiescens_func
+ quiesceSkip(tc);
+ break;
- EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent();
+ case 0x03: // quiescecycle_func
+ quiesceNs(tc, args[0]);
+ break;
- if (quiesceEvent->scheduled())
- quiesceEvent->reschedule(curTick + Clock::Int::ns * ns);
- else
- quiesceEvent->schedule(curTick + Clock::Int::ns * ns);
+ case 0x04: // quiescetime_func
+ return quiesceTime(tc);
- tc->suspend();
- if (tc->getKernelStats())
- tc->getKernelStats()->quiesce();
- }
+ case 0x07: // rpns_func
+ return rpns(tc);
- void
- quiesceCycles(ThreadContext *tc, uint64_t cycles)
- {
- if (!doQuiesce || cycles == 0)
- return;
+ case 0x09: // wakecpu_func
+ wakeCPU(tc, args[0]);
+ break;
- EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent();
+ case 0x21: // exit_func
+ m5exit(tc, args[0]);
+ break;
- if (quiesceEvent->scheduled())
- quiesceEvent->reschedule(curTick +
- tc->getCpuPtr()->cycles(cycles));
- else
- quiesceEvent->schedule(curTick +
- tc->getCpuPtr()->cycles(cycles));
+ case 0x22:
+ m5fail(tc, args[0], args[1]);
+ break;
- tc->suspend();
- if (tc->getKernelStats())
- tc->getKernelStats()->quiesce();
- }
+ case 0x30: // initparam_func
+ return initParam(tc);
- uint64_t
- quiesceTime(ThreadContext *tc)
- {
- return (tc->readLastActivate() - tc->readLastSuspend()) / Clock::Int::ns;
- }
+ case 0x31: // loadsymbol_func
+ loadsymbol(tc);
+ break;
- void
- ivlb(ThreadContext *tc)
- {
- if (tc->getKernelStats())
- tc->getKernelStats()->ivlb();
- }
+ case 0x40: // resetstats_func
+ resetstats(tc, args[0], args[1]);
+ break;
- void
- ivle(ThreadContext *tc)
- {
- }
+ case 0x41: // dumpstats_func
+ dumpstats(tc, args[0], args[1]);
+ break;
- void
- m5exit_old(ThreadContext *tc)
- {
- exitSimLoop(curTick, "m5_exit_old instruction encountered");
- }
+ case 0x42: // dumprststats_func
+ dumpresetstats(tc, args[0], args[1]);
+ break;
- void
- m5exit(ThreadContext *tc, Tick delay)
- {
- Tick when = curTick + delay * Clock::Int::ns;
- exitSimLoop(when, "m5_exit instruction encountered");
- }
+ case 0x43: // ckpt_func
+ m5checkpoint(tc, args[0], args[1]);
+ break;
- void
- loadsymbol(ExecContext *xc)
- {
- const string &filename = xc->getCpuPtr()->system->params()->symbolfile;
- if (filename.empty()) {
- return;
- }
+ case 0x4f: // writefile_func
+ return writefile(tc, args[0], args[1], args[2], args[3]);
- std::string buffer;
- ifstream file(filename.c_str());
+ case 0x50: // readfile_func
+ return readfile(tc, args[0], args[1], args[2]);
- if (!file)
- fatal("file error: Can't open symbol table file %s\n", filename);
+ case 0x51: // debugbreak_func
+ debugbreak(tc);
+ break;
- while (!file.eof()) {
- getline(file, buffer);
+ case 0x52: // switchcpu_func
+ switchcpu(tc);
+ break;
- if (buffer.empty())
- continue;
+ case 0x53: // addsymbol_func
+ addsymbol(tc, args[0], args[1]);
+ break;
- int idx = buffer.find(' ');
- if (idx == string::npos)
- continue;
+ case 0x54: // panic_func
+ panic("M5 panic instruction called at %s\n", tc->pcState());
- string address = "0x" + buffer.substr(0, idx);
- eat_white(address);
- if (address.empty())
- continue;
+ case 0x5a: // work_begin_func
+ workbegin(tc, args[0], args[1]);
+ break;
- // Skip over letter and space
- string symbol = buffer.substr(idx + 3);
- eat_white(symbol);
- if (symbol.empty())
- continue;
+ case 0x5b: // work_end_func
+ workend(tc, args[0], args[1]);
+ break;
- Addr addr;
- if (!to_number(address, addr))
- continue;
+ case 0x55: // annotate_func
+ case 0x56: // reserved2_func
+ case 0x57: // reserved3_func
+ case 0x58: // reserved4_func
+ case 0x59: // reserved5_func
+ warn("Unimplemented m5 op (0x%x)\n", func);
+ break;
- if (!xc->getSystemPtr()->kernelSymtab->insert(addr, symbol))
- continue;
+ /* SE mode functions */
+ case 0x60: // syscall_func
+ m5Syscall(tc);
+ break;
+ case 0x61: // pagefault_func
+ m5PageFault(tc);
+ break;
- DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr);
- }
- file.close();
+ default:
+ warn("Unhandled m5 op: 0x%x\n", func);
+ break;
}
- void
- resetstats(ThreadContext *tc, Tick delay, Tick period)
- {
- if (!doStatisticsInsts)
- return;
+ return 0;
+}
+
+void
+arm(ThreadContext *tc)
+{
+ DPRINTF(PseudoInst, "PseudoInst::arm()\n");
+ if (!FullSystem)
+ panicFsOnlyPseudoInst("arm");
+
+ if (tc->getKernelStats())
+ tc->getKernelStats()->arm();
+}
+
+void
+quiesce(ThreadContext *tc)
+{
+ DPRINTF(PseudoInst, "PseudoInst::quiesce()\n");
+ if (!FullSystem)
+ panicFsOnlyPseudoInst("quiesce");
+
+ if (!tc->getCpuPtr()->params()->do_quiesce)
+ return;
+
+ DPRINTF(Quiesce, "%s: quiesce()\n", tc->getCpuPtr()->name());
+
+ tc->suspend();
+ if (tc->getKernelStats())
+ tc->getKernelStats()->quiesce();
+}
+
+void
+quiesceSkip(ThreadContext *tc)
+{
+ DPRINTF(PseudoInst, "PseudoInst::quiesceSkip()\n");
+ if (!FullSystem)
+ panicFsOnlyPseudoInst("quiesceSkip");
+
+ BaseCPU *cpu = tc->getCpuPtr();
+
+ if (!cpu->params()->do_quiesce)
+ return;
+
+ EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent();
+ Tick resume = curTick() + 1;
- Tick when = curTick + delay * Clock::Int::ns;
- Tick repeat = period * Clock::Int::ns;
+ cpu->reschedule(quiesceEvent, resume, true);
- using namespace Stats;
- SetupEvent(Reset, when, repeat);
+ DPRINTF(Quiesce, "%s: quiesceSkip() until %d\n",
+ cpu->name(), resume);
+
+ tc->suspend();
+ if (tc->getKernelStats())
+ tc->getKernelStats()->quiesce();
+}
+
+void
+quiesceNs(ThreadContext *tc, uint64_t ns)
+{
+ DPRINTF(PseudoInst, "PseudoInst::quiesceNs(%i)\n", ns);
+ if (!FullSystem)
+ panicFsOnlyPseudoInst("quiesceNs");
+
+ BaseCPU *cpu = tc->getCpuPtr();
+
+ if (!cpu->params()->do_quiesce || ns == 0)
+ return;
+
+ EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent();
+
+ Tick resume = curTick() + SimClock::Int::ns * ns;
+
+ cpu->reschedule(quiesceEvent, resume, true);
+
+ DPRINTF(Quiesce, "%s: quiesceNs(%d) until %d\n",
+ cpu->name(), ns, resume);
+
+ tc->suspend();
+ if (tc->getKernelStats())
+ tc->getKernelStats()->quiesce();
+}
+
+void
+quiesceCycles(ThreadContext *tc, uint64_t cycles)
+{
+ DPRINTF(PseudoInst, "PseudoInst::quiesceCycles(%i)\n", cycles);
+ if (!FullSystem)
+ panicFsOnlyPseudoInst("quiesceCycles");
+
+ BaseCPU *cpu = tc->getCpuPtr();
+
+ if (!cpu->params()->do_quiesce || cycles == 0)
+ return;
+
+ EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent();
+
+ Tick resume = cpu->clockEdge(Cycles(cycles));
+
+ cpu->reschedule(quiesceEvent, resume, true);
+
+ DPRINTF(Quiesce, "%s: quiesceCycles(%d) until %d\n",
+ cpu->name(), cycles, resume);
+
+ tc->suspend();
+ if (tc->getKernelStats())
+ tc->getKernelStats()->quiesce();
+}
+
+uint64_t
+quiesceTime(ThreadContext *tc)
+{
+ DPRINTF(PseudoInst, "PseudoInst::quiesceTime()\n");
+ if (!FullSystem) {
+ panicFsOnlyPseudoInst("quiesceTime");
+ return 0;
}
- void
- dumpstats(ThreadContext *tc, Tick delay, Tick period)
- {
- if (!doStatisticsInsts)
- return;
+ return (tc->readLastActivate() - tc->readLastSuspend()) /
+ SimClock::Int::ns;
+}
+
+uint64_t
+rpns(ThreadContext *tc)
+{
+ DPRINTF(PseudoInst, "PseudoInst::rpns()\n");
+ return curTick() / SimClock::Int::ns;
+}
+
+void
+wakeCPU(ThreadContext *tc, uint64_t cpuid)
+{
+ DPRINTF(PseudoInst, "PseudoInst::wakeCPU(%i)\n", cpuid);
+ System *sys = tc->getSystemPtr();
+ ThreadContext *other_tc = sys->threadContexts[cpuid];
+ if (other_tc->status() == ThreadContext::Suspended)
+ other_tc->activate();
+}
+void
+m5exit(ThreadContext *tc, Tick delay)
+{
+ DPRINTF(PseudoInst, "PseudoInst::m5exit(%i)\n", delay);
+ Tick when = curTick() + delay * SimClock::Int::ns;
+ exitSimLoop("m5_exit instruction encountered", 0, when, 0, true);
+}
- Tick when = curTick + delay * Clock::Int::ns;
- Tick repeat = period * Clock::Int::ns;
+void
+m5fail(ThreadContext *tc, Tick delay, uint64_t code)
+{
+ DPRINTF(PseudoInst, "PseudoInst::m5fail(%i, %i)\n", delay, code);
+ Tick when = curTick() + delay * SimClock::Int::ns;
+ exitSimLoop("m5_fail instruction encountered", code, when, 0, true);
+}
- using namespace Stats;
- SetupEvent(Dump, when, repeat);
+void
+loadsymbol(ThreadContext *tc)
+{
+ DPRINTF(PseudoInst, "PseudoInst::loadsymbol()\n");
+ if (!FullSystem)
+ panicFsOnlyPseudoInst("loadsymbol");
+
+ const string &filename = tc->getCpuPtr()->system->params()->symbolfile;
+ if (filename.empty()) {
+ return;
}
- void
- addsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr)
- {
- char symb[100];
- CopyStringOut(tc, symb, symbolAddr, 100);
- std::string symbol(symb);
+ 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;
+
+ string::size_type 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
+addsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr)
+{
+ DPRINTF(PseudoInst, "PseudoInst::addsymbol(0x%x, 0x%x)\n",
+ addr, symbolAddr);
+ if (!FullSystem)
+ panicFsOnlyPseudoInst("addSymbol");
+
+ 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);
+ debugSymbolTable->insert(addr,symbol);
+}
- tc->getSystemPtr()->kernelSymtab->insert(addr,symbol);
+uint64_t
+initParam(ThreadContext *tc)
+{
+ DPRINTF(PseudoInst, "PseudoInst::initParam()\n");
+ if (!FullSystem) {
+ panicFsOnlyPseudoInst("initParam");
+ return 0;
}
- void
- anBegin(ThreadContext *tc, uint64_t cur)
- {
- Annotate::annotations.add(tc->getSystemPtr(), 0, cur >> 32, cur &
- 0xFFFFFFFF, 0,0);
+ return tc->getCpuPtr()->system->init_param;
+}
+
+
+void
+resetstats(ThreadContext *tc, Tick delay, Tick period)
+{
+ DPRINTF(PseudoInst, "PseudoInst::resetstats(%i, %i)\n", delay, period);
+ if (!tc->getCpuPtr()->params()->do_statistics_insts)
+ return;
+
+
+ Tick when = curTick() + delay * SimClock::Int::ns;
+ Tick repeat = period * SimClock::Int::ns;
+
+ Stats::schedStatEvent(false, true, when, repeat);
+}
+
+void
+dumpstats(ThreadContext *tc, Tick delay, Tick period)
+{
+ DPRINTF(PseudoInst, "PseudoInst::dumpstats(%i, %i)\n", delay, period);
+ if (!tc->getCpuPtr()->params()->do_statistics_insts)
+ return;
+
+
+ Tick when = curTick() + delay * SimClock::Int::ns;
+ Tick repeat = period * SimClock::Int::ns;
+
+ Stats::schedStatEvent(true, false, when, repeat);
+}
+
+void
+dumpresetstats(ThreadContext *tc, Tick delay, Tick period)
+{
+ DPRINTF(PseudoInst, "PseudoInst::dumpresetstats(%i, %i)\n", delay, period);
+ if (!tc->getCpuPtr()->params()->do_statistics_insts)
+ return;
+
+
+ Tick when = curTick() + delay * SimClock::Int::ns;
+ Tick repeat = period * SimClock::Int::ns;
+
+ Stats::schedStatEvent(true, true, when, repeat);
+}
+
+void
+m5checkpoint(ThreadContext *tc, Tick delay, Tick period)
+{
+ DPRINTF(PseudoInst, "PseudoInst::m5checkpoint(%i, %i)\n", delay, period);
+ if (!tc->getCpuPtr()->params()->do_checkpoint_insts)
+ return;
+
+ Tick when = curTick() + delay * SimClock::Int::ns;
+ Tick repeat = period * SimClock::Int::ns;
+
+ exitSimLoop("checkpoint", 0, when, repeat);
+}
+
+uint64_t
+readfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset)
+{
+ DPRINTF(PseudoInst, "PseudoInst::readfile(0x%x, 0x%x, 0x%x)\n",
+ vaddr, len, offset);
+ if (!FullSystem) {
+ panicFsOnlyPseudoInst("readfile");
+ return 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);
+ const string &file = tc->getSystemPtr()->params()->readfile;
+ if (file.empty()) {
+ return ULL(0);
}
+ uint64_t result = 0;
- void
- dumpresetstats(ThreadContext *tc, Tick delay, Tick period)
- {
- if (!doStatisticsInsts)
- return;
+ 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));
- Tick when = curTick + delay * Clock::Int::ns;
- Tick repeat = period * Clock::Int::ns;
+ char *buf = new char[len];
+ char *p = buf;
+ while (len > 0) {
+ int bytes = ::read(fd, p, len);
+ if (bytes <= 0)
+ break;
- using namespace Stats;
- SetupEvent(Dump|Reset, when, repeat);
+ p += bytes;
+ result += bytes;
+ len -= bytes;
}
- void
- m5checkpoint(ThreadContext *tc, Tick delay, Tick period)
- {
- if (!doCheckpointInsts)
- return;
- exitSimLoop("checkpoint");
+ close(fd);
+ CopyIn(tc, vaddr, buf, result);
+ delete [] buf;
+ return result;
+}
+
+uint64_t
+writefile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset,
+ Addr filename_addr)
+{
+ DPRINTF(PseudoInst, "PseudoInst::writefile(0x%x, 0x%x, 0x%x, 0x%x)\n",
+ vaddr, len, offset, filename_addr);
+ ostream *os;
+
+ // copy out target filename
+ char fn[100];
+ std::string filename;
+ CopyStringOut(tc, fn, filename_addr, 100);
+ filename = std::string(fn);
+
+ if (offset == 0) {
+ // create a new file (truncate)
+ os = simout.create(filename, true);
+ } else {
+ // do not truncate file if offset is non-zero
+ // (ios::in flag is required as well to keep the existing data
+ // intact, otherwise existing data will be zeroed out.)
+ os = simout.openFile(simout.directory() + filename,
+ ios::in | ios::out | ios::binary);
}
+ if (!os)
+ panic("could not open file %s\n", filename);
- uint64_t
- readfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset)
- {
- const string &file = tc->getCpuPtr()->system->params()->readfile;
- if (file.empty()) {
- return ULL(0);
- }
+ // seek to offset
+ os->seekp(offset);
- uint64_t result = 0;
+ // copy out data and write to file
+ char *buf = new char[len];
+ CopyOut(tc, buf, vaddr, len);
+ os->write(buf, len);
+ if (os->fail() || os->bad())
+ panic("Error while doing writefile!\n");
- int fd = ::open(file.c_str(), O_RDONLY, 0);
- if (fd < 0)
- panic("could not open file %s\n", file);
+ simout.close(os);
- if (::lseek(fd, offset, SEEK_SET) < 0)
- panic("could not seek: %s", strerror(errno));
+ delete [] buf;
- char *buf = new char[len];
- char *p = buf;
- while (len > 0) {
- int bytes = ::read(fd, p, len);
- if (bytes <= 0)
- break;
+ return len;
+}
+
+void
+debugbreak(ThreadContext *tc)
+{
+ DPRINTF(PseudoInst, "PseudoInst::debugbreak()\n");
+ Debug::breakpoint();
+}
- p += bytes;
- result += bytes;
- len -= bytes;
+void
+switchcpu(ThreadContext *tc)
+{
+ DPRINTF(PseudoInst, "PseudoInst::switchcpu()\n");
+ exitSimLoop("switchcpu");
+}
+
+//
+// This function is executed when annotated work items begin. Depending on
+// what the user specified at the command line, the simulation may exit and/or
+// take a checkpoint when a certain work item begins.
+//
+void
+workbegin(ThreadContext *tc, uint64_t workid, uint64_t threadid)
+{
+ DPRINTF(PseudoInst, "PseudoInst::workbegin(%i, %i)\n", workid, threadid);
+ tc->getCpuPtr()->workItemBegin();
+ System *sys = tc->getSystemPtr();
+ const System::Params *params = sys->params();
+ sys->workItemBegin(threadid, workid);
+
+ DPRINTF(WorkItems, "Work Begin workid: %d, threadid %d\n", workid,
+ threadid);
+
+ //
+ // If specified, determine if this is the specific work item the user
+ // identified
+ //
+ if (params->work_item_id == -1 || params->work_item_id == workid) {
+
+ uint64_t systemWorkBeginCount = sys->incWorkItemsBegin();
+ int cpuId = tc->getCpuPtr()->cpuId();
+
+ if (params->work_cpus_ckpt_count != 0 &&
+ sys->markWorkItem(cpuId) >= params->work_cpus_ckpt_count) {
+ //
+ // If active cpus equals checkpoint count, create checkpoint
+ //
+ exitSimLoop("checkpoint");
}
- close(fd);
- CopyIn(tc, vaddr, buf, result);
- delete [] buf;
- return result;
- }
+ if (systemWorkBeginCount == params->work_begin_ckpt_count) {
+ //
+ // Note: the string specified as the cause of the exit event must
+ // exactly equal "checkpoint" inorder to create a checkpoint
+ //
+ exitSimLoop("checkpoint");
+ }
- class Context : public ParamContext
- {
- public:
- Context(const string §ion) : ParamContext(section) {}
- void checkParams();
- };
-
- Context context("pseudo_inst");
-
- Param<bool> __quiesce(&context, "quiesce",
- "enable quiesce instructions",
- true);
- Param<bool> __statistics(&context, "statistics",
- "enable statistics pseudo instructions",
- true);
- Param<bool> __checkpoint(&context, "checkpoint",
- "enable checkpoint pseudo instructions",
- true);
-
- void
- Context::checkParams()
- {
- doQuiesce = __quiesce;
- doStatisticsInsts = __statistics;
- doCheckpointInsts = __checkpoint;
- }
+ if (systemWorkBeginCount == params->work_begin_exit_count) {
+ //
+ // If a certain number of work items started, exit simulation
+ //
+ exitSimLoop("work started count reach");
+ }
- void debugbreak(ThreadContext *tc)
- {
- debug_break();
+ if (cpuId == params->work_begin_cpu_id_exit) {
+ //
+ // If work started on the cpu id specified, exit simulation
+ //
+ exitSimLoop("work started on specific cpu");
+ }
}
+}
+
+//
+// This function is executed when annotated work items end. Depending on
+// what the user specified at the command line, the simulation may exit and/or
+// take a checkpoint when a certain work item ends.
+//
+void
+workend(ThreadContext *tc, uint64_t workid, uint64_t threadid)
+{
+ DPRINTF(PseudoInst, "PseudoInst::workend(%i, %i)\n", workid, threadid);
+ tc->getCpuPtr()->workItemEnd();
+ System *sys = tc->getSystemPtr();
+ const System::Params *params = sys->params();
+ sys->workItemEnd(threadid, workid);
+
+ DPRINTF(WorkItems, "Work End workid: %d, threadid %d\n", workid, threadid);
+
+ //
+ // If specified, determine if this is the specific work item the user
+ // identified
+ //
+ if (params->work_item_id == -1 || params->work_item_id == workid) {
+
+ uint64_t systemWorkEndCount = sys->incWorkItemsEnd();
+ int cpuId = tc->getCpuPtr()->cpuId();
+
+ if (params->work_cpus_ckpt_count != 0 &&
+ sys->markWorkItem(cpuId) >= params->work_cpus_ckpt_count) {
+ //
+ // If active cpus equals checkpoint count, create checkpoint
+ //
+ exitSimLoop("checkpoint");
+ }
- void switchcpu(ThreadContext *tc)
- {
- exitSimLoop("switchcpu");
+ if (params->work_end_ckpt_count != 0 &&
+ systemWorkEndCount == params->work_end_ckpt_count) {
+ //
+ // If total work items completed equals checkpoint count, create
+ // checkpoint
+ //
+ exitSimLoop("checkpoint");
+ }
+
+ if (params->work_end_exit_count != 0 &&
+ systemWorkEndCount == params->work_end_exit_count) {
+ //
+ // If total work items completed equals exit count, exit simulation
+ //
+ exitSimLoop("work items exit count reached");
+ }
}
}
+
+} // namespace PseudoInst
projects / gem5.git / blobdiff