/*
** Test du noyau preemptif. Lier ce fichier avec noyau.c et noyaufil.c
*/
int main(void)
{
serial_init(115200);
printf("Kernel started !");
file_init();
ajoute(3);
affic_file();
ajoute(5);
ajoute(1);
ajoute(0);
ajoute(2);
affic_file();
suivant();
affic_file();
retire(0);
affic_file();
ajoute(6);
affic_file();
while(1);
return 0;
}
/*--------------------------------------------------------------------------*
* --- Fin d'une tache --- *
* Entree : Neant *
* Sortie : Neant *
* Descrip: Cette proc. doit etre appelee a la fin des taches *
* *
*----------------------------------------------------------------------- --*/
void fin_tache(void) {
/* on interdit les interruptions */
_irq_disable_();
/* la tache est enlevee de la file des taches */
retire(_tache_c);
schedule();
}
bool GPUSMProcessor::advance_clock(FlodID fid) {
if (!active) {
// time to remove from the running queue
TaskHandler::removeFromRunning(cpu_id);
return false;
}
fetch(fid);
if (!busy)
return false;
clockTicks.inc();
setWallClock();
if (unlikely(throttlingRatio>1)) {
throttling_cntr++;
uint32_t skip = ceil(throttlingRatio/getTurboRatioGPU());
if (throttling_cntr < skip) {
return true;
}
throttling_cntr = 1;
}
// ID Stage (insert to instQueue)
if (spaceInInstQueue >= FetchWidth) {
//MSG("\nFor CPU %d:",getId());
IBucket *bucket = pipeQ.pipeLine.nextItem();
if( bucket ) {
I(!bucket->empty());
spaceInInstQueue -= bucket->size();
pipeQ.instQueue.push(bucket);
}else{
noFetch2.inc();
}
}else{
noFetch.inc();
}
// RENAME Stage
if ( !pipeQ.instQueue.empty() ) {
// FIXME: Clear the per PE counter
spaceInInstQueue += issue(pipeQ);
}else if (ROB.empty() && rROB.empty()) {
//I(0);
// Still busy if we have some in-flight requests
busy = pipeQ.pipeLine.hasOutstandingItems();
return true;
}
retire();
return true;
}
HeapRegion* G1AllocRegion::release() {
trace("releasing");
HeapRegion* alloc_region = _alloc_region;
retire(false /* fill_up */);
assert(_alloc_region == _dummy_region,
ar_ext_msg(this, "post-condition of retire()"));
_alloc_region = NULL;
trace("released");
return (alloc_region == _dummy_region) ? NULL : alloc_region;
}
void filter( int op, struct tlist *l)
{
filter_pass = 1;
int i, num;
do
{
//verifica opção selecionada pelo usuario.
if(op == 1)
{
cabecalho("INSERIR");
if(l->last == MAX)
{
printf("\t\t# ERRO: Lista cheia! [ENTER]");
getche();
break;
}
else
{
printf("\t\tDIGITE UM NUMERO: ");
geti(&num);
i = search(num, l);
if(i != -1)
{
printf("\n\t\t# NUMERO JA ESTA NA LISTA! [ENTER]");
getche();
}
else add(num, l);
}
}
else
{
cabecalho("REMOVER");
printf("\t\tDIGITE O NUMERO: ");
geti(&num);
i = search(num, l);
if(i == -1)
{
printf("\n\t\t# NUMERO NAO ENCONTRADO! [ENTER]");
getche();
}
else retire(i, l);
}
printf("\n\n\t\t# DESEJA CONTINUAR? [1] SIM [9] NAO");
printf("\n\t\t# OPCAO: ");
geti(&op);
}
while(op == 1);
}
// Flush the stats supporting ergonomic sizing of PLAB's
// and retire the current buffer.
void flush_stats_and_retire(PLABStats* stats, bool end_of_gc, bool retain) {
// We flush the stats first in order to get a reading of
// unused space in the last buffer.
if (ResizePLAB) {
flush_stats(stats);
// Since we have flushed the stats we need to clear
// the _allocated and _wasted fields. Not doing so
// will artifically inflate the values in the stats
// to which we add them.
// The next time we flush these values, we will add
// what we have just flushed in addition to the size
// of the buffers allocated between now and then.
_allocated = 0;
_wasted = 0;
}
// Retire the last allocation buffer.
retire(end_of_gc, retain);
}
inline HeapWord* G1AllocRegion::attempt_allocation_locked(size_t word_size,
bool bot_updates) {
// First we have to tedo the allocation, assuming we're holding the
// appropriate lock, in case another thread changed the region while
// we were waiting to get the lock.
HeapWord* result = attempt_allocation(word_size, bot_updates);
if (result != NULL) {
return result;
}
retire(true /* fill_up */);
result = new_alloc_region_and_allocate(word_size, false /* force */);
if (result != NULL) {
trace("alloc locked (second attempt)", word_size, result);
return result;
}
trace("alloc locked failed", word_size);
return NULL;
}
void Processor::advanceClock()
{
#ifdef TS_STALL
if (isStall()) return;
#endif
clockTicks++;
// GMSG(!ROB.empty(),"robTop %d Ul %d Us %d Ub %d",ROB.getIdFromTop(0)
// ,unresolvedLoad, unresolvedStore, unresolvedBranch);
// Fetch Stage
if (IFID.hasWork() ) {
IBucket *bucket = pipeQ.pipeLine.newItem();
if( bucket ) {
IFID.fetch(bucket);
}
}
// ID Stage (insert to instQueue)
if (spaceInInstQueue >= FetchWidth) {
IBucket *bucket = pipeQ.pipeLine.nextItem();
if( bucket ) {
I(!bucket->empty());
// I(bucket->top()->getInst()->getAddr());
spaceInInstQueue -= bucket->size();
pipeQ.instQueue.push(bucket);
}else{
noFetch2.inc();
}
}else{
noFetch.inc();
}
// RENAME Stage
if ( !pipeQ.instQueue.empty() ) {
spaceInInstQueue += issue(pipeQ);
// spaceInInstQueue += issue(pipeQ);
}
retire();
}
inline void* MarkedAllocator::tryAllocateHelper(size_t bytes)
{
if (m_currentBlock) {
ASSERT(m_currentBlock == m_nextBlockToSweep);
m_currentBlock->didConsumeFreeList();
m_nextBlockToSweep = m_currentBlock->next();
}
MarkedBlock* next;
for (MarkedBlock*& block = m_nextBlockToSweep; block; block = next) {
next = block->next();
MarkedBlock::FreeList freeList = block->sweep(MarkedBlock::SweepToFreeList);
double utilization = ((double)MarkedBlock::blockSize - (double)freeList.bytes) / (double)MarkedBlock::blockSize;
if (utilization >= Options::minMarkedBlockUtilization()) {
ASSERT(freeList.bytes || !freeList.head);
retire(block, freeList);
continue;
}
if (bytes > block->cellSize()) {
block->stopAllocating(freeList);
continue;
}
m_currentBlock = block;
m_freeList = freeList;
break;
}
if (!m_freeList.head) {
m_currentBlock = 0;
return 0;
}
ASSERT(m_freeList.head);
void* head = tryPopFreeList(bytes);
ASSERT(head);
m_markedSpace->didAllocateInBlock(m_currentBlock);
return head;
}
void MarkedAllocator::reset()
{
m_lastActiveBlock = 0;
m_currentBlock = 0;
m_freeList = MarkedBlock::FreeList();
if (m_heap->operationInProgress() == FullCollection)
m_blockList.append(m_retiredBlocks);
m_nextBlockToSweep = m_blockList.head();
if (UNLIKELY(Options::useImmortalObjects())) {
MarkedBlock* next;
for (MarkedBlock*& block = m_nextBlockToSweep; block; block = next) {
next = block->next();
MarkedBlock::FreeList freeList = block->sweep(MarkedBlock::SweepToFreeList);
retire(block, freeList);
}
}
}
