711 lines
19 KiB
C++
711 lines
19 KiB
C++
/*
|
|
* Copyright (c) 2010-2012, 2015 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.
|
|
*
|
|
* 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 "sim/pseudo_inst.hh"
|
|
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
|
|
#include <cerrno>
|
|
#include <fstream>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "arch/kernel_stats.hh"
|
|
#include "arch/pseudo_inst.hh"
|
|
#include "arch/utility.hh"
|
|
#include "arch/vtophys.hh"
|
|
#include "base/debug.hh"
|
|
#include "base/output.hh"
|
|
#include "config/the_isa.hh"
|
|
#include "cpu/base.hh"
|
|
#include "cpu/quiesce_event.hh"
|
|
#include "cpu/thread_context.hh"
|
|
#include "debug/Loader.hh"
|
|
#include "debug/PseudoInst.hh"
|
|
#include "debug/Quiesce.hh"
|
|
#include "debug/WorkItems.hh"
|
|
#include "dev/net/dist_iface.hh"
|
|
#include "params/BaseCPU.hh"
|
|
#include "sim/full_system.hh"
|
|
#include "sim/initparam_keys.hh"
|
|
#include "sim/process.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/vptr.hh"
|
|
|
|
using namespace std;
|
|
|
|
using namespace Stats;
|
|
using namespace TheISA;
|
|
|
|
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)
|
|
{
|
|
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;
|
|
}
|
|
|
|
switch (func) {
|
|
case 0x00: // arm_func
|
|
arm(tc);
|
|
break;
|
|
|
|
case 0x01: // quiesce_func
|
|
quiesce(tc);
|
|
break;
|
|
|
|
case 0x02: // quiescens_func
|
|
quiesceSkip(tc);
|
|
break;
|
|
|
|
case 0x03: // quiescecycle_func
|
|
quiesceNs(tc, args[0]);
|
|
break;
|
|
|
|
case 0x04: // quiescetime_func
|
|
return quiesceTime(tc);
|
|
|
|
case 0x07: // rpns_func
|
|
return rpns(tc);
|
|
|
|
case 0x09: // wakecpu_func
|
|
wakeCPU(tc, args[0]);
|
|
break;
|
|
|
|
case 0x21: // exit_func
|
|
m5exit(tc, args[0]);
|
|
break;
|
|
|
|
case 0x22:
|
|
m5fail(tc, args[0], args[1]);
|
|
break;
|
|
|
|
case 0x30: // initparam_func
|
|
return initParam(tc, args[0], args[1]);
|
|
|
|
case 0x31: // loadsymbol_func
|
|
loadsymbol(tc);
|
|
break;
|
|
|
|
case 0x40: // resetstats_func
|
|
resetstats(tc, args[0], args[1]);
|
|
break;
|
|
|
|
case 0x41: // dumpstats_func
|
|
dumpstats(tc, args[0], args[1]);
|
|
break;
|
|
|
|
case 0x42: // dumprststats_func
|
|
dumpresetstats(tc, args[0], args[1]);
|
|
break;
|
|
|
|
case 0x43: // ckpt_func
|
|
m5checkpoint(tc, args[0], args[1]);
|
|
break;
|
|
|
|
case 0x4f: // writefile_func
|
|
return writefile(tc, args[0], args[1], args[2], args[3]);
|
|
|
|
case 0x50: // readfile_func
|
|
return readfile(tc, args[0], args[1], args[2]);
|
|
|
|
case 0x51: // debugbreak_func
|
|
debugbreak(tc);
|
|
break;
|
|
|
|
case 0x52: // switchcpu_func
|
|
switchcpu(tc);
|
|
break;
|
|
|
|
case 0x53: // addsymbol_func
|
|
addsymbol(tc, args[0], args[1]);
|
|
break;
|
|
|
|
case 0x54: // panic_func
|
|
panic("M5 panic instruction called at %s\n", tc->pcState());
|
|
|
|
case 0x5a: // work_begin_func
|
|
workbegin(tc, args[0], args[1]);
|
|
break;
|
|
|
|
case 0x5b: // work_end_func
|
|
workend(tc, args[0], args[1]);
|
|
break;
|
|
|
|
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;
|
|
|
|
/* SE mode functions */
|
|
case 0x60: // syscall_func
|
|
m5Syscall(tc);
|
|
break;
|
|
|
|
case 0x61: // pagefault_func
|
|
m5PageFault(tc);
|
|
break;
|
|
|
|
/* dist-gem5 functions */
|
|
case 0x62: // distToggleSync_func
|
|
togglesync(tc);
|
|
break;
|
|
|
|
default:
|
|
warn("Unhandled m5 op: 0x%x\n", func);
|
|
break;
|
|
}
|
|
|
|
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");
|
|
tc->quiesce();
|
|
}
|
|
|
|
void
|
|
quiesceSkip(ThreadContext *tc)
|
|
{
|
|
DPRINTF(PseudoInst, "PseudoInst::quiesceSkip()\n");
|
|
tc->quiesceTick(tc->getCpuPtr()->nextCycle() + 1);
|
|
}
|
|
|
|
void
|
|
quiesceNs(ThreadContext *tc, uint64_t ns)
|
|
{
|
|
DPRINTF(PseudoInst, "PseudoInst::quiesceNs(%i)\n", ns);
|
|
tc->quiesceTick(curTick() + SimClock::Int::ns * ns);
|
|
}
|
|
|
|
void
|
|
quiesceCycles(ThreadContext *tc, uint64_t cycles)
|
|
{
|
|
DPRINTF(PseudoInst, "PseudoInst::quiesceCycles(%i)\n", cycles);
|
|
tc->quiesceTick(tc->getCpuPtr()->clockEdge(Cycles(cycles)));
|
|
}
|
|
|
|
uint64_t
|
|
quiesceTime(ThreadContext *tc)
|
|
{
|
|
DPRINTF(PseudoInst, "PseudoInst::quiesceTime()\n");
|
|
|
|
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);
|
|
if (DistIface::readyToExit(delay)) {
|
|
Tick when = curTick() + delay * SimClock::Int::ns;
|
|
exitSimLoop("m5_exit instruction encountered", 0, when, 0, true);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
uint64_t
|
|
initParam(ThreadContext *tc, uint64_t key_str1, uint64_t key_str2)
|
|
{
|
|
DPRINTF(PseudoInst, "PseudoInst::initParam() key:%s%s\n", (char *)&key_str1,
|
|
(char *)&key_str2);
|
|
if (!FullSystem) {
|
|
panicFsOnlyPseudoInst("initParam");
|
|
return 0;
|
|
}
|
|
|
|
// The key parameter string is passed in via two 64-bit registers. We copy
|
|
// out the characters from the 64-bit integer variables here and concatenate
|
|
// them in the key_str character buffer
|
|
const int len = 2 * sizeof(uint64_t) + 1;
|
|
char key_str[len];
|
|
memset(key_str, '\0', len);
|
|
if (key_str1 == 0) {
|
|
assert(key_str2 == 0);
|
|
} else {
|
|
strncpy(key_str, (char *)&key_str1, sizeof(uint64_t));
|
|
}
|
|
|
|
if (strlen(key_str) == sizeof(uint64_t)) {
|
|
strncpy(key_str + sizeof(uint64_t), (char *)&key_str2,
|
|
sizeof(uint64_t));
|
|
} else {
|
|
assert(key_str2 == 0);
|
|
}
|
|
|
|
// Compare the key parameter with the known values to select the return
|
|
// value
|
|
uint64_t val;
|
|
if (strcmp(key_str, InitParamKey::DEFAULT) == 0) {
|
|
val = tc->getCpuPtr()->system->init_param;
|
|
} else if (strcmp(key_str, InitParamKey::DIST_RANK) == 0) {
|
|
val = DistIface::rankParam();
|
|
} else if (strcmp(key_str, InitParamKey::DIST_SIZE) == 0) {
|
|
val = DistIface::sizeParam();
|
|
} else {
|
|
panic("Unknown key for initparam pseudo instruction:\"%s\"", key_str);
|
|
}
|
|
return val;
|
|
}
|
|
|
|
|
|
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;
|
|
|
|
if (DistIface::readyToCkpt(delay, period)) {
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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);
|
|
|
|
// copy out target filename
|
|
char fn[100];
|
|
std::string filename;
|
|
CopyStringOut(tc, fn, filename_addr, 100);
|
|
filename = std::string(fn);
|
|
|
|
OutputStream *out;
|
|
if (offset == 0) {
|
|
// create a new file (truncate)
|
|
out = simout.create(filename, true, 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.)
|
|
out = simout.open(filename, ios::in | ios::out | ios::binary, true);
|
|
}
|
|
|
|
ostream *os(out->stream());
|
|
if (!os)
|
|
panic("could not open file %s\n", filename);
|
|
|
|
// seek to offset
|
|
os->seekp(offset);
|
|
|
|
// 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");
|
|
|
|
simout.close(out);
|
|
|
|
delete [] buf;
|
|
|
|
return len;
|
|
}
|
|
|
|
void
|
|
debugbreak(ThreadContext *tc)
|
|
{
|
|
DPRINTF(PseudoInst, "PseudoInst::debugbreak()\n");
|
|
Debug::breakpoint();
|
|
}
|
|
|
|
void
|
|
switchcpu(ThreadContext *tc)
|
|
{
|
|
DPRINTF(PseudoInst, "PseudoInst::switchcpu()\n");
|
|
exitSimLoop("switchcpu");
|
|
}
|
|
|
|
void
|
|
togglesync(ThreadContext *tc)
|
|
{
|
|
DPRINTF(PseudoInst, "PseudoInst::togglesync()\n");
|
|
DistIface::toggleSync(tc);
|
|
}
|
|
|
|
//
|
|
// 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);
|
|
System *sys = tc->getSystemPtr();
|
|
const System::Params *params = sys->params();
|
|
|
|
if (params->exit_on_work_items) {
|
|
exitSimLoop("workbegin", static_cast<int>(workid));
|
|
return;
|
|
}
|
|
|
|
DPRINTF(WorkItems, "Work Begin workid: %d, threadid %d\n", workid,
|
|
threadid);
|
|
tc->getCpuPtr()->workItemBegin();
|
|
sys->workItemBegin(threadid, workid);
|
|
|
|
//
|
|
// 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");
|
|
}
|
|
|
|
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");
|
|
}
|
|
|
|
if (systemWorkBeginCount == params->work_begin_exit_count) {
|
|
//
|
|
// If a certain number of work items started, exit simulation
|
|
//
|
|
exitSimLoop("work started count reach");
|
|
}
|
|
|
|
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);
|
|
System *sys = tc->getSystemPtr();
|
|
const System::Params *params = sys->params();
|
|
|
|
if (params->exit_on_work_items) {
|
|
exitSimLoop("workend", static_cast<int>(workid));
|
|
return;
|
|
}
|
|
|
|
DPRINTF(WorkItems, "Work End workid: %d, threadid %d\n", workid, threadid);
|
|
tc->getCpuPtr()->workItemEnd();
|
|
sys->workItemEnd(threadid, workid);
|
|
|
|
//
|
|
// 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");
|
|
}
|
|
|
|
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
|