cpu-o3: Make the smtIQPolicy a Param.ScopedEnum

The smtIQPolicy is a parameter in the o3 cpu that can have 3
different values. Previously this setting was done through a string
and a parser function would turn it into a c++ enum value. This
changeset turns the string into a python Param.ScopedEnum.

Change-Id: Ieecf0a19427dd250b0d5ae3d531ab46a37326ae5
Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15398
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>

1 files changed, 2 insertions, 8 deletions

diff --git a/src/cpu/o3/inst_queue.hh b/src/cpu/o3/inst_queue.hh
index 37cc3a2bb..d6bc654df 100644
--- a/src/cpu/o3/inst_queue.hh
+++ b/src/cpu/o3/inst_queue.hh
@@ -55,6 +55,7 @@
 #include "cpu/inst_seq.hh"
 #include "cpu/op_class.hh"
 #include "cpu/timebuf.hh"
+#include "enums/SMTQueuePolicy.hh"
 #include "sim/eventq.hh"
 
 struct DerivO3CPUParams;
@@ -403,15 +404,8 @@ class InstructionQueue
     // Various parameters
     //////////////////////////////////////
 
-    /** IQ Resource Sharing Policy */
-    enum IQPolicy {
-        Dynamic,
-        Partitioned,
-        Threshold
-    };
-
     /** IQ sharing policy for SMT. */
-    IQPolicy iqPolicy;
+    SMTQueuePolicy iqPolicy;
 
     /** Number of Total Threads*/
     ThreadID numThreads;