summaryrefslogtreecommitdiff
path: root/src/cpu/simple
diff options
context:
space:
mode:
Diffstat (limited to 'src/cpu/simple')
-rw-r--r--src/cpu/simple/atomic.cc15
-rw-r--r--src/cpu/simple/atomic.hh2
-rw-r--r--src/cpu/simple/timing.cc18
-rw-r--r--src/cpu/simple/timing.hh4
4 files changed, 32 insertions, 7 deletions
diff --git a/src/cpu/simple/atomic.cc b/src/cpu/simple/atomic.cc
index 58dc1fe5f..133b5500b 100644
--- a/src/cpu/simple/atomic.cc
+++ b/src/cpu/simple/atomic.cc
@@ -94,7 +94,7 @@ Tick
AtomicSimpleCPU::CpuPort::recvAtomic(PacketPtr pkt)
{
//Snooping a coherence request, just return
- return curTick;
+ return 0;
}
void
@@ -107,8 +107,13 @@ AtomicSimpleCPU::CpuPort::recvFunctional(PacketPtr pkt)
void
AtomicSimpleCPU::CpuPort::recvStatusChange(Status status)
{
- if (status == RangeChange)
+ if (status == RangeChange) {
+ if (!snoopRangeSent) {
+ snoopRangeSent = true;
+ sendStatusChange(Port::RangeChange);
+ }
return;
+ }
panic("AtomicSimpleCPU doesn't expect recvStatusChange callback!");
}
@@ -127,6 +132,9 @@ AtomicSimpleCPU::AtomicSimpleCPU(Params *p)
{
_status = Idle;
+ icachePort.snoopRangeSent = false;
+ dcachePort.snoopRangeSent = false;
+
ifetch_req = new Request();
ifetch_req->setThreadContext(p->cpu_id, 0); // Add thread ID if we add MT
ifetch_pkt = new Packet(ifetch_req, Packet::ReadReq, Packet::Broadcast);
@@ -512,6 +520,7 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(AtomicSimpleCPU)
#endif // FULL_SYSTEM
Param<int> clock;
+ Param<int> phase;
Param<bool> defer_registration;
Param<int> width;
@@ -547,6 +556,7 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(AtomicSimpleCPU)
#endif // FULL_SYSTEM
INIT_PARAM(clock, "clock speed"),
+ INIT_PARAM_DFLT(phase, "clock phase", 0),
INIT_PARAM(defer_registration, "defer system registration (for sampling)"),
INIT_PARAM(width, "cpu width"),
INIT_PARAM(function_trace, "Enable function trace"),
@@ -567,6 +577,7 @@ CREATE_SIM_OBJECT(AtomicSimpleCPU)
params->max_loads_all_threads = max_loads_all_threads;
params->progress_interval = progress_interval;
params->deferRegistration = defer_registration;
+ params->phase = phase;
params->clock = clock;
params->functionTrace = function_trace;
params->functionTraceStart = function_trace_start;
diff --git a/src/cpu/simple/atomic.hh b/src/cpu/simple/atomic.hh
index 166a18127..0df6fe079 100644
--- a/src/cpu/simple/atomic.hh
+++ b/src/cpu/simple/atomic.hh
@@ -90,6 +90,8 @@ class AtomicSimpleCPU : public BaseSimpleCPU
: Port(_name, _cpu), cpu(_cpu)
{ }
+ bool snoopRangeSent;
+
protected:
virtual bool recvTiming(PacketPtr pkt);
diff --git a/src/cpu/simple/timing.cc b/src/cpu/simple/timing.cc
index d75688ee6..3648f7613 100644
--- a/src/cpu/simple/timing.cc
+++ b/src/cpu/simple/timing.cc
@@ -82,8 +82,13 @@ TimingSimpleCPU::CpuPort::recvFunctional(PacketPtr pkt)
void
TimingSimpleCPU::CpuPort::recvStatusChange(Status status)
{
- if (status == RangeChange)
+ if (status == RangeChange) {
+ if (!snoopRangeSent) {
+ snoopRangeSent = true;
+ sendStatusChange(Port::RangeChange);
+ }
return;
+ }
panic("TimingSimpleCPU doesn't expect recvStatusChange callback!");
}
@@ -101,6 +106,10 @@ TimingSimpleCPU::TimingSimpleCPU(Params *p)
cpu_id(p->cpu_id)
{
_status = Idle;
+
+ icachePort.snoopRangeSent = false;
+ dcachePort.snoopRangeSent = false;
+
ifetch_pkt = dcache_pkt = NULL;
drainEvent = NULL;
fetchEvent = NULL;
@@ -160,7 +169,7 @@ TimingSimpleCPU::resume()
fetchEvent =
new EventWrapper<TimingSimpleCPU, &TimingSimpleCPU::fetch>(this, false);
- fetchEvent->schedule(curTick);
+ fetchEvent->schedule(nextCycle());
}
changeState(SimObject::Running);
@@ -232,7 +241,7 @@ TimingSimpleCPU::activateContext(int thread_num, int delay)
// kick things off by initiating the fetch of the next instruction
fetchEvent =
new EventWrapper<TimingSimpleCPU, &TimingSimpleCPU::fetch>(this, false);
- fetchEvent->schedule(curTick + cycles(delay));
+ fetchEvent->schedule(nextCycle(curTick + cycles(delay)));
}
@@ -683,6 +692,7 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(TimingSimpleCPU)
#endif // FULL_SYSTEM
Param<int> clock;
+ Param<int> phase;
Param<bool> defer_registration;
Param<int> width;
@@ -718,6 +728,7 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(TimingSimpleCPU)
#endif // FULL_SYSTEM
INIT_PARAM(clock, "clock speed"),
+ INIT_PARAM_DFLT(phase, "clock phase", 0),
INIT_PARAM(defer_registration, "defer system registration (for sampling)"),
INIT_PARAM(width, "cpu width"),
INIT_PARAM(function_trace, "Enable function trace"),
@@ -739,6 +750,7 @@ CREATE_SIM_OBJECT(TimingSimpleCPU)
params->progress_interval = progress_interval;
params->deferRegistration = defer_registration;
params->clock = clock;
+ params->phase = phase;
params->functionTrace = function_trace;
params->functionTraceStart = function_trace_start;
params->system = system;
diff --git a/src/cpu/simple/timing.hh b/src/cpu/simple/timing.hh
index 408fa315e..fe5d03666 100644
--- a/src/cpu/simple/timing.hh
+++ b/src/cpu/simple/timing.hh
@@ -82,6 +82,8 @@ class TimingSimpleCPU : public BaseSimpleCPU
: Port(_name, _cpu), cpu(_cpu), lat(_lat)
{ }
+ bool snoopRangeSent;
+
protected:
virtual Tick recvAtomic(PacketPtr pkt);
@@ -166,8 +168,6 @@ class TimingSimpleCPU : public BaseSimpleCPU
PacketPtr ifetch_pkt;
PacketPtr dcache_pkt;
-
-
int cpu_id;
Tick previousTick;