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-rw-r--r--src/cpu/o3/lsq_impl.hh129
1 files changed, 56 insertions, 73 deletions
diff --git a/src/cpu/o3/lsq_impl.hh b/src/cpu/o3/lsq_impl.hh
index 61dced14f..f1642be9c 100644
--- a/src/cpu/o3/lsq_impl.hh
+++ b/src/cpu/o3/lsq_impl.hh
@@ -1,4 +1,16 @@
/*
+ * Copyright (c) 2011 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
* Copyright (c) 2005-2006 The Regents of The University of Michigan
* All rights reserved.
*
@@ -41,84 +53,13 @@
using namespace std;
template <class Impl>
-Tick
-LSQ<Impl>::DcachePort::recvAtomic(PacketPtr pkt)
-{
- panic("O3CPU model does not work with atomic mode!");
- return curTick();
-}
-
-template <class Impl>
-void
-LSQ<Impl>::DcachePort::recvFunctional(PacketPtr pkt)
-{
- DPRINTF(LSQ, "LSQ doesn't update things on a recvFunctional.\n");
-}
-
-template <class Impl>
-void
-LSQ<Impl>::DcachePort::recvStatusChange(Status status)
-{
- if (status == RangeChange) {
- if (!snoopRangeSent) {
- snoopRangeSent = true;
- sendStatusChange(Port::RangeChange);
- }
- return;
- }
- panic("O3CPU doesn't expect recvStatusChange callback!");
-}
-
-template <class Impl>
-bool
-LSQ<Impl>::DcachePort::recvTiming(PacketPtr pkt)
-{
- if (pkt->isError())
- DPRINTF(LSQ, "Got error packet back for address: %#X\n", pkt->getAddr());
- if (pkt->isResponse()) {
- lsq->thread[pkt->req->threadId()].completeDataAccess(pkt);
- } else {
- DPRINTF(LSQ, "received pkt for addr:%#x %s\n", pkt->getAddr(),
- pkt->cmdString());
-
- // must be a snoop
- if (pkt->isInvalidate()) {
- DPRINTF(LSQ, "received invalidation for addr:%#x\n", pkt->getAddr());
- for (ThreadID tid = 0; tid < lsq->numThreads; tid++) {
- lsq->thread[tid].checkSnoop(pkt);
- }
- }
- // to provide stronger consistency model
- }
- return true;
-}
-
-template <class Impl>
-void
-LSQ<Impl>::DcachePort::recvRetry()
-{
- if (lsq->retryTid == -1)
- {
- //Squashed, so drop it
- return;
- }
- int curr_retry_tid = lsq->retryTid;
- // Speculatively clear the retry Tid. This will get set again if
- // the LSQUnit was unable to complete its access.
- lsq->retryTid = -1;
- lsq->thread[curr_retry_tid].recvRetry();
-}
-
-template <class Impl>
LSQ<Impl>::LSQ(O3CPU *cpu_ptr, IEW *iew_ptr, DerivO3CPUParams *params)
- : cpu(cpu_ptr), iewStage(iew_ptr), dcachePort(this),
+ : cpu(cpu_ptr), iewStage(iew_ptr),
LQEntries(params->LQEntries),
SQEntries(params->SQEntries),
numThreads(params->numThreads),
retryTid(-1)
{
- dcachePort.snoopRangeSent = false;
-
//**********************************************/
//************ Handle SMT Parameters ***********/
//**********************************************/
@@ -170,7 +111,7 @@ LSQ<Impl>::LSQ(O3CPU *cpu_ptr, IEW *iew_ptr, DerivO3CPUParams *params)
for (ThreadID tid = 0; tid < numThreads; tid++) {
thread[tid].init(cpu, iew_ptr, params, this,
maxLQEntries, maxSQEntries, tid);
- thread[tid].setDcachePort(&dcachePort);
+ thread[tid].setDcachePort(cpu_ptr->getDcachePort());
}
}
@@ -360,6 +301,48 @@ LSQ<Impl>::violation()
return false;
}
+template <class Impl>
+void
+LSQ<Impl>::recvRetry()
+{
+ if (retryTid == InvalidThreadID)
+ {
+ //Squashed, so drop it
+ return;
+ }
+ int curr_retry_tid = retryTid;
+ // Speculatively clear the retry Tid. This will get set again if
+ // the LSQUnit was unable to complete its access.
+ retryTid = -1;
+ thread[curr_retry_tid].recvRetry();
+}
+
+template <class Impl>
+bool
+LSQ<Impl>::recvTiming(PacketPtr pkt)
+{
+ if (pkt->isError())
+ DPRINTF(LSQ, "Got error packet back for address: %#X\n",
+ pkt->getAddr());
+ if (pkt->isResponse()) {
+ thread[pkt->req->threadId()].completeDataAccess(pkt);
+ } else {
+ DPRINTF(LSQ, "received pkt for addr:%#x %s\n", pkt->getAddr(),
+ pkt->cmdString());
+
+ // must be a snoop
+ if (pkt->isInvalidate()) {
+ DPRINTF(LSQ, "received invalidation for addr:%#x\n",
+ pkt->getAddr());
+ for (ThreadID tid = 0; tid < numThreads; tid++) {
+ thread[tid].checkSnoop(pkt);
+ }
+ }
+ // to provide stronger consistency model
+ }
+ return true;
+}
+
template<class Impl>
int
LSQ<Impl>::getCount()