/*
+ * Copyright (c) 2013 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) 2002-2005 The Regents of The University of Michigan
+ * Copyright (c) 2013 Advanced Micro Devices, Inc.
+ * Copyright (c) 2013 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* Authors: Nathan Binkert
*/
+#include "sim/sim_events.hh"
+
#include <string>
#include "base/callback.hh"
#include "base/hostinfo.hh"
-#include "sim/eventq.hh"
-#include "sim/param.hh"
-#include "sim/sim_events.hh"
+#include "sim/eventq_impl.hh"
#include "sim/sim_exit.hh"
-#include "sim/startup.hh"
#include "sim/stats.hh"
using namespace std;
-//
-// handle termination event
-//
-void
-SimLoopExitEvent::process()
+GlobalSimLoopExitEvent::GlobalSimLoopExitEvent(Tick when,
+ const std::string &_cause,
+ int c, Tick r)
+ : GlobalEvent(when, Sim_Exit_Pri, IsExitEvent),
+ cause(_cause), code(c), repeat(r)
{
- // if this got scheduled on a different queue (e.g. the committed
- // instruction queue) then make a corresponding event on the main
- // queue.
- if (theQueue() != &mainEventQueue) {
- exitSimLoop(cause, code);
- delete this;
- }
-
- // otherwise do nothing... the IsExitEvent flag takes care of
- // exiting the simulation loop and returning this object to Python
-
- // but if you are doing this on intervals, don't forget to make another
- if (repeat) {
- schedule(curTick + repeat);
- }
}
-
const char *
-SimLoopExitEvent::description()
+GlobalSimLoopExitEvent::description() const
{
- return "simulation loop exit";
-}
-
-SimLoopExitEvent *
-schedExitSimLoop(const std::string &message, Tick when, Tick repeat,
- EventQueue *q, int exit_code)
-{
- if (q == NULL)
- q = &mainEventQueue;
-
- return new SimLoopExitEvent(q, when, repeat, message, exit_code);
+ return "global simulation loop exit";
}
+//
+// handle termination event
+//
void
-exitSimLoop(const std::string &message, int exit_code)
+GlobalSimLoopExitEvent::process()
{
- schedExitSimLoop(message, curTick, 0, NULL, exit_code);
+ if (repeat) {
+ schedule(curTick() + repeat);
+ }
}
void
-CountedDrainEvent::process()
+exitSimLoop(const std::string &message, int exit_code, Tick when, Tick repeat,
+ bool serialize)
{
- if (--count == 0) {
- exitSimLoop("Finished drain");
- }
+ warn_if(serialize && (when != curTick() || repeat),
+ "exitSimLoop called with a delay and auto serialization. This is "
+ "currently unsupported.");
+
+ new GlobalSimLoopExitEvent(when + simQuantum, message, exit_code, repeat);
}
-//
-// constructor: automatically schedules at specified time
-//
-CountedExitEvent::CountedExitEvent(EventQueue *q, const std::string &_cause,
- Tick _when, int &_downCounter)
- : Event(q, Sim_Exit_Pri),
- cause(_cause),
- downCounter(_downCounter)
+LocalSimLoopExitEvent::LocalSimLoopExitEvent(const std::string &_cause, int c,
+ Tick r)
+ : Event(Sim_Exit_Pri, IsExitEvent),
+ cause(_cause), code(c), repeat(r)
{
- // catch stupid mistakes
- assert(downCounter > 0);
-
- schedule(_when);
}
-
//
// handle termination event
//
void
-CountedExitEvent::process()
+LocalSimLoopExitEvent::process()
{
- if (--downCounter == 0) {
- exitSimLoop(cause, 0);
- }
+ exitSimLoop(cause, 0);
}
const char *
-CountedExitEvent::description()
+LocalSimLoopExitEvent::description() const
{
- return "counted exit";
+ return "simulation loop exit";
}
-#ifdef CHECK_SWAP_CYCLES
-new CheckSwapEvent(&mainEventQueue, CHECK_SWAP_CYCLES);
-#endif
-
void
-CheckSwapEvent::process()
+LocalSimLoopExitEvent::serialize(CheckpointOut &cp) const
{
- /* Check the amount of free swap space */
- long swap;
-
- /* returns free swap in KBytes */
- swap = procInfo("/proc/meminfo", "SwapFree:");
+ Event::serialize(cp);
- if (swap < 1000)
- ccprintf(cerr, "\a\a\aWarning! Swap space is low (%d)\n", swap);
+ SERIALIZE_SCALAR(cause);
+ SERIALIZE_SCALAR(code);
+ SERIALIZE_SCALAR(repeat);
+}
- if (swap < 100) {
- cerr << "\a\aAborting Simulation! Inadequate swap space!\n\n";
- exitSimLoop("Lack of swap space");
- }
+void
+LocalSimLoopExitEvent::unserialize(CheckpointIn &cp)
+{
+ Event::unserialize(cp);
- schedule(curTick + interval);
+ UNSERIALIZE_SCALAR(cause);
+ UNSERIALIZE_SCALAR(code);
+ UNSERIALIZE_SCALAR(repeat);
}
-const char *
-CheckSwapEvent::description()
+//
+// constructor: automatically schedules at specified time
+//
+CountedExitEvent::CountedExitEvent(const std::string &_cause, int &counter)
+ : Event(Sim_Exit_Pri), cause(_cause), downCounter(counter)
{
- return "check swap";
+ // catch stupid mistakes
+ assert(downCounter > 0);
}
+
//
-// handle progress event: print message and reschedule
+// handle termination event
//
void
-ProgressEvent::process()
+CountedExitEvent::process()
{
- DPRINTFN("ProgressEvent\n");
- // reschedule for next interval
- schedule(curTick + interval);
+ if (--downCounter == 0) {
+ exitSimLoop(cause, 0);
+ }
}
const char *
-ProgressEvent::description()
+CountedExitEvent::description() const
{
- return "progress message";
+ return "counted exit";
}
projects / gem5.git / blobdiff