summaryrefslogtreecommitdiff
path: root/src/cpu/o3/iew_impl.hh
diff options
context:
space:
mode:
Diffstat (limited to 'src/cpu/o3/iew_impl.hh')
-rw-r--r--src/cpu/o3/iew_impl.hh131
1 files changed, 66 insertions, 65 deletions
diff --git a/src/cpu/o3/iew_impl.hh b/src/cpu/o3/iew_impl.hh
index 778ff444f..ba29df196 100644
--- a/src/cpu/o3/iew_impl.hh
+++ b/src/cpu/o3/iew_impl.hh
@@ -39,6 +39,8 @@
#include "cpu/o3/iew.hh"
#include "params/DerivO3CPU.hh"
+using namespace std;
+
template<class Impl>
DefaultIEW<Impl>::DefaultIEW(O3CPU *_cpu, DerivO3CPUParams *params)
: issueToExecQueue(params->backComSize, params->forwardComSize),
@@ -66,10 +68,10 @@ DefaultIEW<Impl>::DefaultIEW(O3CPU *_cpu, DerivO3CPUParams *params)
// Instruction queue needs the queue between issue and execute.
instQueue.setIssueToExecuteQueue(&issueToExecQueue);
- for (int i=0; i < numThreads; i++) {
- dispatchStatus[i] = Running;
- stalls[i].commit = false;
- fetchRedirect[i] = false;
+ for (ThreadID tid = 0; tid < numThreads; tid++) {
+ dispatchStatus[tid] = Running;
+ stalls[tid].commit = false;
+ fetchRedirect[tid] = false;
}
wbMax = wbWidth * params->wbDepth;
@@ -164,7 +166,7 @@ DefaultIEW<Impl>::regStats()
.desc("Number of executed instructions");
iewExecLoadInsts
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".iewExecLoadInsts")
.desc("Number of load instructions executed")
.flags(total);
@@ -174,25 +176,25 @@ DefaultIEW<Impl>::regStats()
.desc("Number of squashed instructions skipped in execute");
iewExecutedSwp
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".EXEC:swp")
.desc("number of swp insts executed")
.flags(total);
iewExecutedNop
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".EXEC:nop")
.desc("number of nop insts executed")
.flags(total);
iewExecutedRefs
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".EXEC:refs")
.desc("number of memory reference insts executed")
.flags(total);
iewExecutedBranches
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".EXEC:branches")
.desc("Number of branches executed")
.flags(total);
@@ -211,31 +213,31 @@ DefaultIEW<Impl>::regStats()
iewExecRate = iewExecutedInsts / cpu->numCycles;
iewInstsToCommit
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".WB:sent")
.desc("cumulative count of insts sent to commit")
.flags(total);
writebackCount
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".WB:count")
.desc("cumulative count of insts written-back")
.flags(total);
producerInst
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".WB:producers")
.desc("num instructions producing a value")
.flags(total);
consumerInst
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".WB:consumers")
.desc("num instructions consuming a value")
.flags(total);
wbPenalized
- .init(cpu->number_of_threads)
+ .init(cpu->numThreads)
.name(name() + ".WB:penalized")
.desc("number of instrctions required to write to 'other' IQ")
.flags(total);
@@ -265,7 +267,7 @@ template<class Impl>
void
DefaultIEW<Impl>::initStage()
{
- for (int tid=0; tid < numThreads; tid++) {
+ for (ThreadID tid = 0; tid < numThreads; tid++) {
toRename->iewInfo[tid].usedIQ = true;
toRename->iewInfo[tid].freeIQEntries =
instQueue.numFreeEntries(tid);
@@ -318,7 +320,7 @@ DefaultIEW<Impl>::setIEWQueue(TimeBuffer<IEWStruct> *iq_ptr)
template<class Impl>
void
-DefaultIEW<Impl>::setActiveThreads(std::list<unsigned> *at_ptr)
+DefaultIEW<Impl>::setActiveThreads(list<ThreadID> *at_ptr)
{
activeThreads = at_ptr;
@@ -361,11 +363,11 @@ DefaultIEW<Impl>::switchOut()
ldstQueue.switchOut();
fuPool->switchOut();
- for (int i = 0; i < numThreads; i++) {
- while (!insts[i].empty())
- insts[i].pop();
- while (!skidBuffer[i].empty())
- skidBuffer[i].pop();
+ for (ThreadID tid = 0; tid < numThreads; tid++) {
+ while (!insts[tid].empty())
+ insts[tid].pop();
+ while (!skidBuffer[tid].empty())
+ skidBuffer[tid].pop();
}
}
@@ -386,10 +388,10 @@ DefaultIEW<Impl>::takeOverFrom()
initStage();
cpu->activityThisCycle();
- for (int i=0; i < numThreads; i++) {
- dispatchStatus[i] = Running;
- stalls[i].commit = false;
- fetchRedirect[i] = false;
+ for (ThreadID tid = 0; tid < numThreads; tid++) {
+ dispatchStatus[tid] = Running;
+ stalls[tid].commit = false;
+ fetchRedirect[tid] = false;
}
updateLSQNextCycle = false;
@@ -401,10 +403,9 @@ DefaultIEW<Impl>::takeOverFrom()
template<class Impl>
void
-DefaultIEW<Impl>::squash(unsigned tid)
+DefaultIEW<Impl>::squash(ThreadID tid)
{
- DPRINTF(IEW, "[tid:%i]: Squashing all instructions.\n",
- tid);
+ DPRINTF(IEW, "[tid:%i]: Squashing all instructions.\n", tid);
// Tell the IQ to start squashing.
instQueue.squash(tid);
@@ -433,7 +434,7 @@ DefaultIEW<Impl>::squash(unsigned tid)
template<class Impl>
void
-DefaultIEW<Impl>::squashDueToBranch(DynInstPtr &inst, unsigned tid)
+DefaultIEW<Impl>::squashDueToBranch(DynInstPtr &inst, ThreadID tid)
{
DPRINTF(IEW, "[tid:%i]: Squashing from a specific instruction, PC: %#x "
"[sn:%i].\n", tid, inst->readPC(), inst->seqNum);
@@ -464,7 +465,7 @@ DefaultIEW<Impl>::squashDueToBranch(DynInstPtr &inst, unsigned tid)
template<class Impl>
void
-DefaultIEW<Impl>::squashDueToMemOrder(DynInstPtr &inst, unsigned tid)
+DefaultIEW<Impl>::squashDueToMemOrder(DynInstPtr &inst, ThreadID tid)
{
DPRINTF(IEW, "[tid:%i]: Squashing from a specific instruction, "
"PC: %#x [sn:%i].\n", tid, inst->readPC(), inst->seqNum);
@@ -482,7 +483,7 @@ DefaultIEW<Impl>::squashDueToMemOrder(DynInstPtr &inst, unsigned tid)
template<class Impl>
void
-DefaultIEW<Impl>::squashDueToMemBlocked(DynInstPtr &inst, unsigned tid)
+DefaultIEW<Impl>::squashDueToMemBlocked(DynInstPtr &inst, ThreadID tid)
{
DPRINTF(IEW, "[tid:%i]: Memory blocked, squashing load and younger insts, "
"PC: %#x [sn:%i].\n", tid, inst->readPC(), inst->seqNum);
@@ -503,7 +504,7 @@ DefaultIEW<Impl>::squashDueToMemBlocked(DynInstPtr &inst, unsigned tid)
template<class Impl>
void
-DefaultIEW<Impl>::block(unsigned tid)
+DefaultIEW<Impl>::block(ThreadID tid)
{
DPRINTF(IEW, "[tid:%u]: Blocking.\n", tid);
@@ -522,7 +523,7 @@ DefaultIEW<Impl>::block(unsigned tid)
template<class Impl>
void
-DefaultIEW<Impl>::unblock(unsigned tid)
+DefaultIEW<Impl>::unblock(ThreadID tid)
{
DPRINTF(IEW, "[tid:%i]: Reading instructions out of the skid "
"buffer %u.\n",tid, tid);
@@ -605,7 +606,7 @@ DefaultIEW<Impl>::validInstsFromRename()
template<class Impl>
void
-DefaultIEW<Impl>::skidInsert(unsigned tid)
+DefaultIEW<Impl>::skidInsert(ThreadID tid)
{
DynInstPtr inst = NULL;
@@ -631,11 +632,11 @@ DefaultIEW<Impl>::skidCount()
{
int max=0;
- std::list<unsigned>::iterator threads = activeThreads->begin();
- std::list<unsigned>::iterator end = activeThreads->end();
+ list<ThreadID>::iterator threads = activeThreads->begin();
+ list<ThreadID>::iterator end = activeThreads->end();
while (threads != end) {
- unsigned tid = *threads++;
+ ThreadID tid = *threads++;
unsigned thread_count = skidBuffer[tid].size();
if (max < thread_count)
max = thread_count;
@@ -648,11 +649,11 @@ template<class Impl>
bool
DefaultIEW<Impl>::skidsEmpty()
{
- std::list<unsigned>::iterator threads = activeThreads->begin();
- std::list<unsigned>::iterator end = activeThreads->end();
+ list<ThreadID>::iterator threads = activeThreads->begin();
+ list<ThreadID>::iterator end = activeThreads->end();
while (threads != end) {
- unsigned tid = *threads++;
+ ThreadID tid = *threads++;
if (!skidBuffer[tid].empty())
return false;
@@ -667,11 +668,11 @@ DefaultIEW<Impl>::updateStatus()
{
bool any_unblocking = false;
- std::list<unsigned>::iterator threads = activeThreads->begin();
- std::list<unsigned>::iterator end = activeThreads->end();
+ list<ThreadID>::iterator threads = activeThreads->begin();
+ list<ThreadID>::iterator end = activeThreads->end();
while (threads != end) {
- unsigned tid = *threads++;
+ ThreadID tid = *threads++;
if (dispatchStatus[tid] == Unblocking) {
any_unblocking = true;
@@ -711,7 +712,7 @@ DefaultIEW<Impl>::resetEntries()
template <class Impl>
void
-DefaultIEW<Impl>::readStallSignals(unsigned tid)
+DefaultIEW<Impl>::readStallSignals(ThreadID tid)
{
if (fromCommit->commitBlock[tid]) {
stalls[tid].commit = true;
@@ -725,7 +726,7 @@ DefaultIEW<Impl>::readStallSignals(unsigned tid)
template <class Impl>
bool
-DefaultIEW<Impl>::checkStall(unsigned tid)
+DefaultIEW<Impl>::checkStall(ThreadID tid)
{
bool ret_val(false);
@@ -761,7 +762,7 @@ DefaultIEW<Impl>::checkStall(unsigned tid)
template <class Impl>
void
-DefaultIEW<Impl>::checkSignalsAndUpdate(unsigned tid)
+DefaultIEW<Impl>::checkSignalsAndUpdate(ThreadID tid)
{
// Check if there's a squash signal, squash if there is
// Check stall signals, block if there is.
@@ -834,8 +835,8 @@ DefaultIEW<Impl>::sortInsts()
{
int insts_from_rename = fromRename->size;
#ifdef DEBUG
- for (int i = 0; i < numThreads; i++)
- assert(insts[i].empty());
+ for (ThreadID tid = 0; tid < numThreads; tid++)
+ assert(insts[tid].empty());
#endif
for (int i = 0; i < insts_from_rename; ++i) {
insts[fromRename->insts[i]->threadNumber].push(fromRename->insts[i]);
@@ -844,7 +845,7 @@ DefaultIEW<Impl>::sortInsts()
template <class Impl>
void
-DefaultIEW<Impl>::emptyRenameInsts(unsigned tid)
+DefaultIEW<Impl>::emptyRenameInsts(ThreadID tid)
{
DPRINTF(IEW, "[tid:%i]: Removing incoming rename instructions\n", tid);
@@ -894,7 +895,7 @@ DefaultIEW<Impl>::deactivateStage()
template<class Impl>
void
-DefaultIEW<Impl>::dispatch(unsigned tid)
+DefaultIEW<Impl>::dispatch(ThreadID tid)
{
// If status is Running or idle,
// call dispatchInsts()
@@ -942,7 +943,7 @@ DefaultIEW<Impl>::dispatch(unsigned tid)
template <class Impl>
void
-DefaultIEW<Impl>::dispatchInsts(unsigned tid)
+DefaultIEW<Impl>::dispatchInsts(ThreadID tid)
{
// Obtain instructions from skid buffer if unblocking, or queue from rename
// otherwise.
@@ -1169,11 +1170,11 @@ DefaultIEW<Impl>::executeInsts()
wbNumInst = 0;
wbCycle = 0;
- std::list<unsigned>::iterator threads = activeThreads->begin();
- std::list<unsigned>::iterator end = activeThreads->end();
+ list<ThreadID>::iterator threads = activeThreads->begin();
+ list<ThreadID>::iterator end = activeThreads->end();
while (threads != end) {
- unsigned tid = *threads++;
+ ThreadID tid = *threads++;
fetchRedirect[tid] = false;
}
@@ -1273,7 +1274,7 @@ DefaultIEW<Impl>::executeInsts()
// This probably needs to prioritize the redirects if a different
// scheduler is used. Currently the scheduler schedules the oldest
// instruction first, so the branch resolution order will be correct.
- unsigned tid = inst->threadNumber;
+ ThreadID tid = inst->threadNumber;
if (!fetchRedirect[tid] ||
toCommit->squashedSeqNum[tid] > inst->seqNum) {
@@ -1391,7 +1392,7 @@ DefaultIEW<Impl>::writebackInsts()
for (int inst_num = 0; inst_num < wbWidth &&
toCommit->insts[inst_num]; inst_num++) {
DynInstPtr inst = toCommit->insts[inst_num];
- int tid = inst->threadNumber;
+ ThreadID tid = inst->threadNumber;
DPRINTF(IEW, "Sending instructions to commit, [sn:%lli] PC %#x.\n",
inst->seqNum, inst->readPC());
@@ -1439,12 +1440,12 @@ DefaultIEW<Impl>::tick()
// Free function units marked as being freed this cycle.
fuPool->processFreeUnits();
- std::list<unsigned>::iterator threads = activeThreads->begin();
- std::list<unsigned>::iterator end = activeThreads->end();
+ list<ThreadID>::iterator threads = activeThreads->begin();
+ list<ThreadID>::iterator end = activeThreads->end();
// Check stall and squash signals, dispatch any instructions.
while (threads != end) {
- unsigned tid = *threads++;
+ ThreadID tid = *threads++;
DPRINTF(IEW,"Issue: Processing [tid:%i]\n",tid);
@@ -1486,7 +1487,7 @@ DefaultIEW<Impl>::tick()
threads = activeThreads->begin();
while (threads != end) {
- unsigned tid = (*threads++);
+ ThreadID tid = (*threads++);
DPRINTF(IEW,"Processing [tid:%i]\n",tid);
@@ -1552,14 +1553,14 @@ template <class Impl>
void
DefaultIEW<Impl>::updateExeInstStats(DynInstPtr &inst)
{
- int thread_number = inst->threadNumber;
+ ThreadID tid = inst->threadNumber;
//
// Pick off the software prefetches
//
#ifdef TARGET_ALPHA
if (inst->isDataPrefetch())
- iewExecutedSwp[thread_number]++;
+ iewExecutedSwp[tid]++;
else
iewIewExecutedcutedInsts++;
#else
@@ -1570,16 +1571,16 @@ DefaultIEW<Impl>::updateExeInstStats(DynInstPtr &inst)
// Control operations
//
if (inst->isControl())
- iewExecutedBranches[thread_number]++;
+ iewExecutedBranches[tid]++;
//
// Memory operations
//
if (inst->isMemRef()) {
- iewExecutedRefs[thread_number]++;
+ iewExecutedRefs[tid]++;
if (inst->isLoad()) {
- iewExecLoadInsts[thread_number]++;
+ iewExecLoadInsts[tid]++;
}
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 14:04:00 +0000