summaryrefslogtreecommitdiff
path: root/src/cpu/inorder/resources/fetch_seq_unit.cc
diff options
context:
space:
mode:
authorKorey Sewell <ksewell@umich.edu>2010-06-24 15:34:12 -0400
committerKorey Sewell <ksewell@umich.edu>2010-06-24 15:34:12 -0400
commitf95430d97e0a9a77b920ab3ca24b134bc682f655 (patch)
tree13a5424847b8e4a65135e82a518ef60ed069b2d3 /src/cpu/inorder/resources/fetch_seq_unit.cc
parentecba3074c2eb9e873655a1e0e49bfd03e2bd2a41 (diff)
downloadgem5-f95430d97e0a9a77b920ab3ca24b134bc682f655.tar.xz
inorder: enforce 78-character rule
Diffstat (limited to 'src/cpu/inorder/resources/fetch_seq_unit.cc')
-rw-r--r--src/cpu/inorder/resources/fetch_seq_unit.cc63
1 files changed, 38 insertions, 25 deletions
diff --git a/src/cpu/inorder/resources/fetch_seq_unit.cc b/src/cpu/inorder/resources/fetch_seq_unit.cc
index 0d22226a5..8a1ec3ce5 100644
--- a/src/cpu/inorder/resources/fetch_seq_unit.cc
+++ b/src/cpu/inorder/resources/fetch_seq_unit.cc
@@ -38,7 +38,8 @@ using namespace TheISA;
using namespace ThePipeline;
FetchSeqUnit::FetchSeqUnit(std::string res_name, int res_id, int res_width,
- int res_latency, InOrderCPU *_cpu, ThePipeline::Params *params)
+ int res_latency, InOrderCPU *_cpu,
+ ThePipeline::Params *params)
: Resource(res_name, res_id, res_width, res_latency, _cpu),
instSize(sizeof(MachInst))
{
@@ -95,7 +96,8 @@ FetchSeqUnit::execute(int slot_num)
delaySlotInfo[tid].targetReady = false;
- DPRINTF(InOrderFetchSeq, "[tid:%i]: Setting PC to delay slot target\n",tid);
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: Setting PC to delay "
+ "slot target\n",tid);
}
inst->setPC(PC[tid]);
@@ -110,8 +112,10 @@ FetchSeqUnit::execute(int slot_num)
inst->setMemAddr(PC[tid]);
inst->setSeqNum(cpu->getAndIncrementInstSeq(tid));
- DPRINTF(InOrderFetchSeq, "[tid:%i]: Assigning [sn:%i] to PC %08p, NPC %08p, NNPC %08p\n", tid,
- inst->seqNum, inst->readPC(), inst->readNextPC(), inst->readNextNPC());
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: Assigning [sn:%i] to "
+ "PC %08p, NPC %08p, NNPC %08p\n", tid,
+ inst->seqNum, inst->readPC(), inst->readNextPC(),
+ inst->readNextNPC());
if (delaySlotInfo[tid].numInsts > 0) {
--delaySlotInfo[tid].numInsts;
@@ -121,8 +125,9 @@ FetchSeqUnit::execute(int slot_num)
delaySlotInfo[tid].targetReady = true;
}
- DPRINTF(InOrderFetchSeq, "[tid:%i]: %i delay slot inst(s) left to"
- " process.\n", tid, delaySlotInfo[tid].numInsts);
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: %i delay slot inst(s) "
+ "left to process.\n", tid,
+ delaySlotInfo[tid].numInsts);
}
PC[tid] = nextPC[tid];
@@ -147,7 +152,8 @@ FetchSeqUnit::execute(int slot_num)
pcBlockStage[tid] = stage_num;
} else if (inst->isCondDelaySlot() && !inst->predTaken()) {
// Not-Taken AND Conditional Control
- DPRINTF(InOrderFetchSeq, "[tid:%i]: [sn:%i]: [PC:%08p] Predicted Not-Taken Cond. "
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: [sn:%i]: [PC:%08p] "
+ "Predicted Not-Taken Cond. "
"Delay inst. Skipping delay slot and Updating PC to %08p\n",
tid, inst->seqNum, inst->readPC(), inst->readPredTarg());
@@ -160,7 +166,8 @@ FetchSeqUnit::execute(int slot_num)
squashAfterInst(inst, stage_num, tid);
} else if (!inst->isCondDelaySlot() && !inst->predTaken()) {
// Not-Taken Control
- DPRINTF(InOrderFetchSeq, "[tid:%i]: [sn:%i]: Predicted Not-Taken Control "
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: [sn:%i]: Predicted "
+ "Not-Taken Control "
"inst. updating PC to %08p\n", tid, inst->seqNum,
inst->readNextPC());
#if ISA_HAS_DELAY_SLOT
@@ -177,8 +184,9 @@ FetchSeqUnit::execute(int slot_num)
delaySlotInfo[tid].targetReady = false;
delaySlotInfo[tid].targetAddr = inst->readPredTarg();
- DPRINTF(InOrderFetchSeq, "[tid:%i]: [sn:%i] Updating delay slot target "
- "to PC %08p\n", tid, inst->seqNum, inst->readPredTarg());
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: [sn:%i] Updating delay"
+ " slot target to PC %08p\n", tid, inst->seqNum,
+ inst->readPredTarg());
inst->bdelaySeqNum = seq_num + 1;
#else
inst->bdelaySeqNum = seq_num;
@@ -187,15 +195,17 @@ FetchSeqUnit::execute(int slot_num)
inst->squashingStage = stage_num;
- DPRINTF(InOrderFetchSeq, "[tid:%i] Setting up squash to start from stage %i, after [sn:%i].\n",
+ DPRINTF(InOrderFetchSeq, "[tid:%i] Setting up squash to "
+ "start from stage %i, after [sn:%i].\n",
tid, stage_num, inst->bdelaySeqNum);
// Do Squashing
squashAfterInst(inst, stage_num, tid);
}
} else {
- DPRINTF(InOrderFetchSeq, "[tid:%i]: [sn:%i]: Ignoring branch target update "
- "since then is not a control instruction.\n", tid, inst->seqNum);
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: [sn:%i]: Ignoring branch "
+ "target update since then is not a control "
+ "instruction.\n", tid, inst->seqNum);
}
fs_req->done();
@@ -213,8 +223,8 @@ FetchSeqUnit::squashAfterInst(DynInstPtr inst, int stage_num, ThreadID tid)
// Squash In Pipeline Stage
cpu->pipelineStage[stage_num]->squashDueToBranch(inst, tid);
- // Squash inside current resource, so if there needs to be fetching on same cycle
- // the fetch information will be correct.
+ // Squash inside current resource, so if there needs to be fetching on
+ // same cycle the fetch information will be correct.
// squash(inst, stage_num, inst->bdelaySeqNum, tid);
// Schedule Squash Through-out Resource Pool
@@ -224,8 +234,8 @@ void
FetchSeqUnit::squash(DynInstPtr inst, int squash_stage,
InstSeqNum squash_seq_num, ThreadID tid)
{
- DPRINTF(InOrderFetchSeq, "[tid:%i]: Updating due to squash from stage %i.\n",
- tid, squash_stage);
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: Updating due to squash from stage %i."
+ "\n", tid, squash_stage);
InstSeqNum done_seq_num = inst->bdelaySeqNum;
@@ -236,8 +246,8 @@ FetchSeqUnit::squash(DynInstPtr inst, int squash_stage,
if (squashSeqNum[tid] <= done_seq_num &&
lastSquashCycle[tid] == curTick) {
- DPRINTF(InOrderFetchSeq, "[tid:%i]: Ignoring squash from stage %i, since"
- "there is an outstanding squash that is older.\n",
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: Ignoring squash from stage %i, "
+ "since there is an outstanding squash that is older.\n",
tid, squash_stage);
} else {
squashSeqNum[tid] = done_seq_num;
@@ -265,7 +275,8 @@ FetchSeqUnit::squash(DynInstPtr inst, int squash_stage,
delaySlotInfo[tid].numInsts = 1;
delaySlotInfo[tid].targetReady = false;
- delaySlotInfo[tid].targetAddr = (inst->procDelaySlotOnMispred) ? inst->branchTarget() : new_PC;
+ delaySlotInfo[tid].targetAddr = (inst->procDelaySlotOnMispred) ?
+ inst->branchTarget() : new_PC;
// Reset PC to Delay Slot Instruction
if (inst->procDelaySlotOnMispred) {
@@ -278,7 +289,8 @@ FetchSeqUnit::squash(DynInstPtr inst, int squash_stage,
// Unblock Any Stages Waiting for this information to be updated ...
if (!pcValid[tid]) {
- cpu->pipelineStage[pcBlockStage[tid]]->toPrevStages->stageUnblock[pcBlockStage[tid]][tid] = true;
+ cpu->pipelineStage[pcBlockStage[tid]]->
+ toPrevStages->stageUnblock[pcBlockStage[tid]][tid] = true;
}
pcValid[tid] = true;
@@ -301,8 +313,9 @@ FetchSeqUnit::FetchSeqEvent::process()
fs_res->PC[i] = fs_res->cpu->readPC(i);
fs_res->nextPC[i] = fs_res->cpu->readNextPC(i);
fs_res->nextNPC[i] = fs_res->cpu->readNextNPC(i);
- DPRINTF(InOrderFetchSeq, "[tid:%i]: Setting PC:%08p NPC:%08p NNPC:%08p.\n",
- fs_res->PC[i], fs_res->nextPC[i], fs_res->nextNPC[i]);
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: Setting PC:%08p NPC:%08p "
+ "NNPC:%08p.\n", fs_res->PC[i], fs_res->nextPC[i],
+ fs_res->nextNPC[i]);
fs_res->pcValid[i] = true;
}
@@ -322,8 +335,8 @@ FetchSeqUnit::activateThread(ThreadID tid)
cpu->fetchPriorityList.push_back(tid);
- DPRINTF(InOrderFetchSeq, "[tid:%i]: Reading PC:%08p NPC:%08p NNPC:%08p.\n",
- tid, PC[tid], nextPC[tid], nextNPC[tid]);
+ DPRINTF(InOrderFetchSeq, "[tid:%i]: Reading PC:%08p NPC:%08p "
+ "NNPC:%08p.\n", tid, PC[tid], nextPC[tid], nextNPC[tid]);
}
void