e06321091d
For now, there is still a single global event queue, but this is necessary for making the steps towards a parallelized m5.
295 lines
7.3 KiB
C++
295 lines
7.3 KiB
C++
/*
|
|
* 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 <errno.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
|
|
#include <fstream>
|
|
#include <string>
|
|
|
|
#include "arch/kernel_stats.hh"
|
|
#include "arch/vtophys.hh"
|
|
#include "base/annotate.hh"
|
|
#include "cpu/base.hh"
|
|
#include "cpu/thread_context.hh"
|
|
#include "cpu/quiesce_event.hh"
|
|
#include "params/BaseCPU.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 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;
|
|
|
|
mainEventQueue.reschedule(quiesceEvent, resume, true);
|
|
|
|
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()->ticks(cycles);
|
|
|
|
mainEventQueue.reschedule(quiesceEvent, resume, true);
|
|
|
|
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(ThreadContext *tc, Tick delay)
|
|
{
|
|
Tick when = curTick + delay * Clock::Int::ns;
|
|
Event *event = new SimLoopExitEvent("m5_exit instruction encountered", 0);
|
|
mainEventQueue.schedule(event, 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
|
|
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;
|
|
|
|
Event *event = new SimLoopExitEvent("checkpoint", 0, repeat);
|
|
mainEventQueue.schedule(event, when);
|
|
}
|
|
|
|
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");
|
|
}
|
|
|
|
/* namespace PseudoInst */ }
|