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Diffstat (limited to 'src/cpu/inorder/resources/cache_unit.cc')
-rw-r--r--src/cpu/inorder/resources/cache_unit.cc76
1 files changed, 44 insertions, 32 deletions
diff --git a/src/cpu/inorder/resources/cache_unit.cc b/src/cpu/inorder/resources/cache_unit.cc
index 03f1c1527..6c9da67f5 100644
--- a/src/cpu/inorder/resources/cache_unit.cc
+++ b/src/cpu/inorder/resources/cache_unit.cc
@@ -97,7 +97,7 @@ CacheUnit::CachePort::recvRetry()
CacheUnit::CacheUnit(string res_name, int res_id, int res_width,
int res_latency, InOrderCPU *_cpu, ThePipeline::Params *params)
: Resource(res_name, res_id, res_width, res_latency, _cpu),
- cachePortBlocked(false), predecoder(NULL)
+ cachePortBlocked(false)
{
cachePort = new CachePort(this);
@@ -137,6 +137,9 @@ CacheUnit::init()
// Switch to Timing TLB translations.
resourceEvent = new CacheUnitEvent[width];
+ cacheBlkSize = this->cachePort->peerBlockSize();
+ cacheBlkMask = cacheBlkSize - 1;
+
initSlots();
}
@@ -375,28 +378,20 @@ CacheUnit::requestAgain(DynInstPtr inst, bool &service_request)
}
}
-Fault
-CacheUnit::doTLBAccess(DynInstPtr inst, CacheReqPtr cache_req, int acc_size,
- int flags, TheISA::TLB::Mode tlb_mode)
+void
+CacheUnit::setupMemRequest(DynInstPtr inst, CacheReqPtr cache_req,
+ int acc_size, int flags)
{
ThreadID tid = inst->readTid();
Addr aligned_addr = inst->getMemAddr();
- unsigned stage_num = cache_req->getStageNum();
- unsigned slot_idx = cache_req->getSlot();
- if (tlb_mode == TheISA::TLB::Execute) {
- inst->fetchMemReq =
- new Request(inst->readTid(), aligned_addr, acc_size, flags,
- inst->instAddr(), cpu->readCpuId(), inst->readTid());
- cache_req->memReq = inst->fetchMemReq;
- } else {
- if (!cache_req->is2ndSplit()) {
+ if (!cache_req->is2ndSplit()) {
inst->dataMemReq =
new Request(cpu->asid[tid], aligned_addr, acc_size, flags,
inst->instAddr(), cpu->readCpuId(),
- inst->readTid());
+ tid);
cache_req->memReq = inst->dataMemReq;
- } else {
+ } else {
assert(inst->splitInst);
inst->splitMemReq = new Request(cpu->asid[tid],
@@ -407,9 +402,19 @@ CacheUnit::doTLBAccess(DynInstPtr inst, CacheReqPtr cache_req, int acc_size,
cpu->readCpuId(),
tid);
cache_req->memReq = inst->splitMemReq;
- }
}
-
+}
+
+Fault
+CacheUnit::doTLBAccess(DynInstPtr inst, CacheReqPtr cache_req, int acc_size,
+ int flags, TheISA::TLB::Mode tlb_mode)
+{
+ ThreadID tid = inst->readTid();
+ //Addr aligned_addr = inst->getMemAddr();
+ unsigned stage_num = cache_req->getStageNum();
+ unsigned slot_idx = cache_req->getSlot();
+
+ setupMemRequest(inst, cache_req, acc_size, flags);
cache_req->fault =
_tlb->translateAtomic(cache_req->memReq,
@@ -842,8 +847,8 @@ CacheUnit::doCacheAccess(DynInstPtr inst, uint64_t *write_res,
}
DPRINTF(InOrderCachePort,
- "[tid:%i] [sn:%i] attempting to access cache\n",
- tid, inst->seqNum);
+ "[tid:%i] [sn:%i] attempting to access cache for addr %08p\n",
+ tid, inst->seqNum, cache_req->dataPkt->getAddr());
if (do_access) {
if (!cachePort->sendTiming(cache_req->dataPkt)) {
@@ -1086,6 +1091,24 @@ CacheUnit::squashDueToMemStall(DynInstPtr inst, int stage_num,
squash(inst, stage_num, squash_seq_num + 1, tid);
}
+void
+CacheUnit::squashCacheRequest(CacheReqPtr req_ptr)
+{
+ DynInstPtr inst = req_ptr->getInst();
+
+ req_ptr->setSquashed();
+ inst->setSquashed();
+ if (inst->validMemAddr()) {
+ DPRINTF(AddrDep, "Squash of [tid:%i] [sn:%i], attempting to "
+ "remove addr. %08p dependencies.\n",
+ inst->readTid(),
+ inst->seqNum,
+ inst->getMemAddr());
+
+ removeAddrDependency(inst);
+ }
+}
+
void
CacheUnit::squash(DynInstPtr inst, int stage_num,
@@ -1115,14 +1138,12 @@ CacheUnit::squash(DynInstPtr inst, int stage_num,
map_it++;
continue;
}
-
- req_ptr->setSquashed();
-
- req_ptr->getInst()->setSquashed();
CacheReqPtr cache_req = dynamic_cast<CacheReqPtr>(req_ptr);
assert(cache_req);
+ squashCacheRequest(cache_req);
+
int req_slot_num = req_ptr->getSlot();
if (cache_req->tlbStall) {
@@ -1152,15 +1173,6 @@ CacheUnit::squash(DynInstPtr inst, int stage_num,
req_ptr->getInst()->splitInst);
}
- if (req_ptr->getInst()->validMemAddr()) {
- DPRINTF(AddrDep, "Squash of [tid:%i] [sn:%i], attempting to "
- "remove addr. %08p dependencies.\n",
- req_ptr->getInst()->readTid(),
- req_ptr->getInst()->seqNum,
- req_ptr->getInst()->getMemAddr());
-
- removeAddrDependency(req_ptr->getInst());
- }
}
map_it++;