cpu: Print progress messages in Trace CPU

This change adds the ability to print a message at intervals
of committed instruction count to indicate progress in the
trace replay.

Change-Id: I8363502354c42bfc52936d2627986598b63a5797
Reviewed-by: Rekai Gonzalez Alberquilla <rekai.gonzalezalberquilla@arm.com>
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2321
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>

1 files changed, 14 insertions, 1 deletions

diff --git a/src/cpu/trace/trace_cpu.hh b/src/cpu/trace/trace_cpu.hh
index 846a3e7c5..07c739c57 100644
--- a/src/cpu/trace/trace_cpu.hh
+++ b/src/cpu/trace/trace_cpu.hh
@@ -177,7 +177,7 @@ class TraceCPU : public BaseCPU
      * Set the no. of ops when elastic data generator completes executing a
      * node.
      */
-    void updateNumOps(uint64_t rob_num) { numOps = rob_num; }
+    void updateNumOps(uint64_t rob_num);
 
     /* Pure virtual function in BaseCPU. Do nothing. */
     void wakeup(ThreadID tid = 0)
@@ -1122,6 +1122,19 @@ class TraceCPU : public BaseCPU
      */
     const bool enableEarlyExit;
 
+    /**
+      * Interval of committed instructions specified by the user at which a
+      * progress info message is printed
+      */
+    const uint64_t progressMsgInterval;
+
+    /*
+     * The progress msg threshold is kept updated to the next multiple of the
+     * progress msg interval. As soon as the threshold is reached, an info
+     * message is printed.
+     */
+    uint64_t progressMsgThreshold;
+
     Stats::Scalar numSchedDcacheEvent;
     Stats::Scalar numSchedIcacheEvent;