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-rw-r--r--src/cpu/simple/atomic.cc19
-rw-r--r--src/cpu/simple/atomic.hh2
-rw-r--r--src/cpu/simple/base.cc20
-rw-r--r--src/cpu/simple/base.hh2
-rw-r--r--src/cpu/simple/timing.cc2
5 files changed, 18 insertions, 27 deletions
diff --git a/src/cpu/simple/atomic.cc b/src/cpu/simple/atomic.cc
index a0d26a8ab..c2e6f6185 100644
--- a/src/cpu/simple/atomic.cc
+++ b/src/cpu/simple/atomic.cc
@@ -250,10 +250,9 @@ AtomicSimpleCPU::read(Addr addr, T &data, unsigned flags)
// Now do the access.
if (fault == NoFault) {
- data_read_pkt->reset();
data_read_pkt->reinitFromRequest();
- dcache_complete = dcachePort.sendAtomic(data_read_pkt);
+ dcache_latency = dcachePort.sendAtomic(data_read_pkt);
dcache_access = true;
assert(data_read_pkt->result == Packet::Success);
@@ -329,12 +328,11 @@ AtomicSimpleCPU::write(T data, Addr addr, unsigned flags, uint64_t *res)
// Now do the access.
if (fault == NoFault) {
- data_write_pkt->reset();
data = htog(data);
- data_write_pkt->dataStatic(&data);
data_write_pkt->reinitFromRequest();
+ data_write_pkt->dataStatic(&data);
- dcache_complete = dcachePort.sendAtomic(data_write_pkt);
+ dcache_latency = dcachePort.sendAtomic(data_write_pkt);
dcache_access = true;
assert(data_write_pkt->result == Packet::Success);
@@ -411,11 +409,12 @@ AtomicSimpleCPU::tick()
checkForInterrupts();
ifetch_req->resetMin();
- ifetch_pkt->reset();
- Fault fault = setupFetchPacket(ifetch_pkt);
+ Fault fault = setupFetchRequest(ifetch_req);
if (fault == NoFault) {
- Tick icache_complete = icachePort.sendAtomic(ifetch_pkt);
+ ifetch_pkt->reinitFromRequest();
+
+ Tick icache_latency = icachePort.sendAtomic(ifetch_pkt);
// ifetch_req is initialized to read the instruction directly
// into the CPU object's inst field.
@@ -430,9 +429,9 @@ AtomicSimpleCPU::tick()
// cycle time. If not, the next tick event may get
// scheduled at a non-integer multiple of the CPU
// cycle time.
- Tick icache_stall = icache_complete - curTick - cycles(1);
+ Tick icache_stall = icache_latency - cycles(1);
Tick dcache_stall =
- dcache_access ? dcache_complete - curTick - cycles(1) : 0;
+ dcache_access ? dcache_latency - cycles(1) : 0;
latency += icache_stall + dcache_stall;
}
diff --git a/src/cpu/simple/atomic.hh b/src/cpu/simple/atomic.hh
index 65269bd6d..8c76fbdc8 100644
--- a/src/cpu/simple/atomic.hh
+++ b/src/cpu/simple/atomic.hh
@@ -116,7 +116,7 @@ class AtomicSimpleCPU : public BaseSimpleCPU
Packet *data_write_pkt;
bool dcache_access;
- Tick dcache_complete;
+ Tick dcache_latency;
public:
diff --git a/src/cpu/simple/base.cc b/src/cpu/simple/base.cc
index 18f170449..2e9b4b81f 100644
--- a/src/cpu/simple/base.cc
+++ b/src/cpu/simple/base.cc
@@ -351,29 +351,21 @@ BaseSimpleCPU::checkForInterrupts()
Fault
-BaseSimpleCPU::setupFetchPacket(Packet *ifetch_pkt)
+BaseSimpleCPU::setupFetchRequest(Request *req)
{
- // Try to fetch an instruction
-
// set up memory request for instruction fetch
-
DPRINTF(Fetch,"Fetch: PC:%08p NPC:%08p NNPC:%08p\n",cpuXC->readPC(),
cpuXC->readNextPC(),cpuXC->readNextNPC());
- Request *ifetch_req = ifetch_pkt->req;
- ifetch_req->setVaddr(cpuXC->readPC() & ~3);
- ifetch_req->setTime(curTick);
+ req->setVaddr(cpuXC->readPC() & ~3);
+ req->setTime(curTick);
#if FULL_SYSTEM
- ifetch_req->setFlags((cpuXC->readPC() & 1) ? PHYSICAL : 0);
+ req->setFlags((cpuXC->readPC() & 1) ? PHYSICAL : 0);
#else
- ifetch_req->setFlags(0);
+ req->setFlags(0);
#endif
- Fault fault = cpuXC->translateInstReq(ifetch_req);
-
- if (fault == NoFault) {
- ifetch_pkt->reinitFromRequest();
- }
+ Fault fault = cpuXC->translateInstReq(req);
return fault;
}
diff --git a/src/cpu/simple/base.hh b/src/cpu/simple/base.hh
index 4c0e6f3c7..dbeb6afce 100644
--- a/src/cpu/simple/base.hh
+++ b/src/cpu/simple/base.hh
@@ -129,7 +129,7 @@ class BaseSimpleCPU : public BaseCPU
StaticInstPtr curStaticInst;
void checkForInterrupts();
- Fault setupFetchPacket(Packet *ifetch_pkt);
+ Fault setupFetchRequest(Request *req);
void preExecute();
void postExecute();
void advancePC(Fault fault);
diff --git a/src/cpu/simple/timing.cc b/src/cpu/simple/timing.cc
index 5f094d033..ed0c2da94 100644
--- a/src/cpu/simple/timing.cc
+++ b/src/cpu/simple/timing.cc
@@ -342,11 +342,11 @@ TimingSimpleCPU::fetch()
Request *ifetch_req = new Request(true);
ifetch_req->setSize(sizeof(MachInst));
+ Fault fault = setupFetchRequest(ifetch_req);
ifetch_pkt = new Packet(ifetch_req, Packet::ReadReq, Packet::Broadcast);
ifetch_pkt->dataStatic(&inst);
- Fault fault = setupFetchPacket(ifetch_pkt);
if (fault == NoFault) {
if (!icachePort.sendTiming(ifetch_pkt)) {
// Need to wait for retry