summaryrefslogtreecommitdiff
path: root/src/cpu/simple/timing.cc
diff options
context:
space:
mode:
authorGabe Black <gblack@eecs.umich.edu>2006-11-16 14:41:56 -0500
committerGabe Black <gblack@eecs.umich.edu>2006-11-16 14:41:56 -0500
commit14ebaa1eccff4032d59147783e98e07b81b5f1ae (patch)
tree4c738d02f4876cb394d0f9510d08380a6f5384c1 /src/cpu/simple/timing.cc
parentac2c7967f69e3ffd29a1ed04a15838073dc060de (diff)
parentdbdf2f14ae6b586efd31b73aa4548a38ecee263f (diff)
downloadgem5-14ebaa1eccff4032d59147783e98e07b81b5f1ae.tar.xz
Merge zizzer.eecs.umich.edu:/bk/newmem/
into zower.eecs.umich.edu:/home/gblack/m5/newmemmemops --HG-- extra : convert_revision : c49b760eac758dbde30867cb638fcb3b790f4721
Diffstat (limited to 'src/cpu/simple/timing.cc')
-rw-r--r--src/cpu/simple/timing.cc33
1 files changed, 27 insertions, 6 deletions
diff --git a/src/cpu/simple/timing.cc b/src/cpu/simple/timing.cc
index db2c940c0..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)));
}
@@ -281,6 +290,8 @@ TimingSimpleCPU::read(Addr addr, T &data, unsigned flags)
// memory system takes ownership of packet
dcache_pkt = NULL;
}
+ } else {
+ delete req;
}
// This will need a new way to tell if it has a dcache attached.
@@ -366,6 +377,8 @@ TimingSimpleCPU::write(T data, Addr addr, unsigned flags, uint64_t *res)
dcache_pkt = NULL;
}
}
+ } else {
+ delete req;
}
// This will need a new way to tell if it's hooked up to a cache or not.
@@ -448,6 +461,8 @@ TimingSimpleCPU::fetch()
ifetch_pkt = NULL;
}
} else {
+ delete ifetch_req;
+ delete ifetch_pkt;
// fetch fault: advance directly to next instruction (fault handler)
advanceInst(fault);
}
@@ -481,13 +496,13 @@ TimingSimpleCPU::completeIfetch(PacketPtr pkt)
_status = Running;
- delete pkt->req;
- delete pkt;
-
numCycles += curTick - previousTick;
previousTick = curTick;
if (getState() == SimObject::Draining) {
+ delete pkt->req;
+ delete pkt;
+
completeDrain();
return;
}
@@ -519,6 +534,9 @@ TimingSimpleCPU::completeIfetch(PacketPtr pkt)
postExecute();
advanceInst(fault);
}
+
+ delete pkt->req;
+ delete pkt;
}
void
@@ -674,6 +692,7 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(TimingSimpleCPU)
#endif // FULL_SYSTEM
Param<int> clock;
+ Param<int> phase;
Param<bool> defer_registration;
Param<int> width;
@@ -709,6 +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"),
@@ -730,6 +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;