void SamplerPeriodic::queue(uint32_t insn, uint64_t pc, uint64_t addr, FlowID fid, char op, uint64_t icount, void *env)
/* main qemu/gpu/tracer/... entry point {{{1 */
{
I(fid < emul->getNumEmuls());
if(likely(!execute(fid, icount)))
return; // QEMU can still send a few additional instructions (emul should stop soon)
I(insn);
// process the current sample mode
if (nextSwitch>totalnInst) {
if (mode == EmuRabbit || mode == EmuInit)
return;
if (mode == EmuDetail || mode == EmuTiming) {
emul->queueInstruction(insn,pc,addr, (op&0xc0) /* thumb */ ,fid, env, getStatsFlag());
return;
}
I(mode == EmuWarmup);
doWarmupOpAddr(op, addr);
return;
}
// We did enough
if (isItDone())
return;
// We are not done yet though. Look for the new mode
I(nextSwitch <= totalnInst);
coordinateWithOthersAndNextMode(fid);
I(mode == next_mode); //it was a detailed sync
}
void SamplerGPUSpacial::queue(uint32_t insn, uint64_t pc, uint64_t addr, FlowID fid, char op, uint64_t icount, void *env)
/* main qemu/gpu/tracer/... entry point */
{
if(likely(!execute(fid, icount)))
return; // QEMU can still send a few additional instructions (emul should stop soon)
I(mode!=EmuInit);
I(insn);
if (mode == EmuRabbit || mode == EmuWarmup){
if (doPower && noActiveCPU()) {
if (lastMode == EmuTiming) {
#if 1 // For now GPU only, CPU side must be all rabbit!
doPWTH();
#endif
}
}
lastMode = mode;
return;
}
if (mode == EmuDetail || mode == EmuTiming) {
emul->queueInstruction(insn,pc,addr, (op&0xc0) /* thumb */ ,fid, env, getStatsFlag());
lastMode = mode;
return;
}
// not happening for GPU, the CPU will decide!
// We did enough
//if (totalnInst >= nInstMax/* || endSimSiged*/) {
if (totalnInst >= nInstMax) {
markDone();
return;
}
}
void SamplerSMARTS::queue(uint32_t insn, uint64_t pc, uint64_t addr, FlowID fid, char op, uint64_t icount, void *env)
/* main qemu/gpu/tracer/... entry point {{{1 */
{
I(fid < emul->getNumEmuls());
if(likely(!execute(fid, icount)))
return; // QEMU can still send a few additional instructions (emul should stop soon)
I(mode!=EmuInit);
I(insn);
// process the current sample mode
if (getNextSwitch()>totalnInst) {
if (mode == EmuRabbit || mode == EmuInit)
return;
if (mode == EmuDetail || mode == EmuTiming) {
emul->queueInstruction(insn,pc,addr, (op&0xc0) /* thumb */ ,fid, env, getStatsFlag());
return;
}
I(mode == EmuWarmup);
doWarmupOpAddr(op, addr);
return;
}
// Look for the new mode
I(getNextSwitch() <= totalnInst);
// I(mode != next_mode);
pthread_mutex_lock (&mode_lock);
//
if (getNextSwitch() > totalnInst){//another thread just changed the mode
pthread_mutex_unlock (&mode_lock);
return;
}
lastMode = mode;
nextMode(ROTATE, fid);
if (lastMode == EmuTiming) { // timing is going to be over
if (getTime()>=maxnsTime || totalnInst>=nInstMax) {
markDone();
pthread_mutex_unlock (&mode_lock);
return;
}
if (doPower) {
uint64_t mytime = getTime();
int64_t ti = mytime - lastTime;
I(ti > 0);
ti = (static_cast<int64_t>(freq)*ti)/1e9;
BootLoader::getPowerModelPtr()->setSamplingRatio(getSamplingRatio());
BootLoader::getPowerModelPtr()->calcStats(ti, !(lastMode == EmuTiming), fid);
lastTime = mytime;
updateCPI(fid);
if (doTherm) {
BootLoader::getPowerModelPtr()->updateSescTherm(ti);
}
}
}
pthread_mutex_unlock (&mode_lock);
}
uint64_t SamplerSMARTS::queue(uint64_t pc, uint64_t addr, FlowID fid, char op, int src1, int src2, int dest, int dest2)
/* main qemu/gpu/tracer/... entry point {{{1 */
{
I(fid < emul->getNumEmuls());
if(likely(!execute(fid, 1)))
return 0; // QEMU can still send a few additional instructions (emul should stop soon)
I(mode!=EmuInit);
// process the current sample mode
if (getNextSwitch()>totalnInst) {
if (mode == EmuRabbit || mode == EmuInit) {
uint64_t rabbitInst = getNextSwitch() - totalnInst;
execute(fid,rabbitInst);
// Qemu is not going to return untill it has executed these many instructions
// Or untill it hits a syscall that causes it to exit
// Untill then, you are on your own. Sit back and relax!
return rabbitInst;
}
if (mode == EmuDetail || mode == EmuTiming) {
emul->queueInstruction(pc,addr, fid, op, src1, src2, dest, dest2, getStatsFlag());
return 0;
}
I(mode == EmuWarmup);
#if 1
if ( op == iLALU_LD || op == iSALU_ST)
// cache warmup fake inst, do not need SRC deps (faster)
emul->queueInstruction(0,addr, fid, op, LREG_R0, LREG_R0, LREG_InvalidOutput, LREG_InvalidOutput, false);
#else
//doWarmupOpAddr(static_cast<InstOpcode>(op), addr);
#endif
return 0;
}
// Look for the new mode
I(getNextSwitch() <= totalnInst);
// I(mode != next_mode);
pthread_mutex_lock (&mode_lock);
//
if (getNextSwitch() > totalnInst){//another thread just changed the mode
pthread_mutex_unlock (&mode_lock);
return 0;
}
lastMode = mode;
nextMode(ROTATE, fid);
if (lastMode == EmuTiming) { // timing is going to be over
#if 0
static double last_timing = 0;
static long long last_globalClock = 0;
MSG("%f %lld"
,iusage[EmuTiming]->getDouble()
,globalClock-last_globalClock);
last_timing = iusage[EmuTiming]->getDouble();
last_globalClock = globalClock;
#endif
BootLoader::reportSample();
if (getTime()>=maxnsTime || totalnInst>=nInstMax) {
markDone();
pthread_mutex_unlock (&mode_lock);
return 0;
}
if (doPower) {
uint64_t mytime = getTime();
int64_t ti = mytime - lastTime;
I(ti > 0);
ti = (static_cast<int64_t>(freq)*ti)/1e9;
BootLoader::getPowerModelPtr()->setSamplingRatio(getSamplingRatio());
BootLoader::getPowerModelPtr()->calcStats(ti, !(lastMode == EmuTiming), fid);
lastTime = mytime;
updateCPI(fid);
if (doTherm) {
BootLoader::getPowerModelPtr()->updateSescTherm(ti);
}
}
}
pthread_mutex_unlock (&mode_lock);
return 0;
}