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-rw-r--r--src/cpu/o3/alpha/cpu_builder.cc12
-rw-r--r--src/cpu/o3/alpha/thread_context.hh15
2 files changed, 17 insertions, 10 deletions
diff --git a/src/cpu/o3/alpha/cpu_builder.cc b/src/cpu/o3/alpha/cpu_builder.cc
index d61eee4b1..5e767655d 100644
--- a/src/cpu/o3/alpha/cpu_builder.cc
+++ b/src/cpu/o3/alpha/cpu_builder.cc
@@ -102,7 +102,9 @@ Param<unsigned> renameToROBDelay;
Param<unsigned> commitWidth;
Param<unsigned> squashWidth;
Param<Tick> trapLatency;
-Param<Tick> fetchTrapLatency;
+
+Param<unsigned> backComSize;
+Param<unsigned> forwardComSize;
Param<std::string> predType;
Param<unsigned> localPredictorSize;
@@ -222,7 +224,9 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(DerivO3CPU)
INIT_PARAM(commitWidth, "Commit width"),
INIT_PARAM(squashWidth, "Squash width"),
INIT_PARAM_DFLT(trapLatency, "Number of cycles before the trap is handled", 6),
- INIT_PARAM_DFLT(fetchTrapLatency, "Number of cycles before the fetch trap is handled", 12),
+
+ INIT_PARAM(backComSize, "Time buffer size for backwards communication"),
+ INIT_PARAM(forwardComSize, "Time buffer size for forward communication"),
INIT_PARAM(predType, "Type of branch predictor ('local', 'tournament')"),
INIT_PARAM(localPredictorSize, "Size of local predictor"),
@@ -350,7 +354,9 @@ CREATE_SIM_OBJECT(DerivO3CPU)
params->commitWidth = commitWidth;
params->squashWidth = squashWidth;
params->trapLatency = trapLatency;
- params->fetchTrapLatency = fetchTrapLatency;
+
+ params->backComSize = backComSize;
+ params->forwardComSize = forwardComSize;
params->predType = predType;
params->localPredictorSize = localPredictorSize;
diff --git a/src/cpu/o3/alpha/thread_context.hh b/src/cpu/o3/alpha/thread_context.hh
index 78b0ee788..ad52b0d2e 100644
--- a/src/cpu/o3/alpha/thread_context.hh
+++ b/src/cpu/o3/alpha/thread_context.hh
@@ -70,18 +70,19 @@ class AlphaTC : public O3ThreadContext<Impl>
{ panic("Not supported on Alpha!"); }
- // This function exits the thread context in the CPU and returns
- // 1 if the CPU has no more active threads (meaning it's OK to exit);
- // Used in syscall-emulation mode when a thread executes the 'exit'
- // syscall.
+ /** This function exits the thread context in the CPU and returns
+ * 1 if the CPU has no more active threads (meaning it's OK to exit);
+ * Used in syscall-emulation mode when a thread executes the 'exit'
+ * syscall.
+ */
virtual int exit()
{
- this->cpu->deallocateContext(this->thread->readTid());
+ this->deallocate();
// If there are still threads executing in the system
if (this->cpu->numActiveThreads())
- return 0;
+ return 0; // don't exit simulation
else
- return 1;
+ return 1; // exit simulation
}
};