mem: Add a master ID to each request object.

This change adds a master id to each request object which can be
used identify every device in the system that is capable of issuing a request.
This is part of the way to removing the numCpus+1 stats in the cache and
replacing them with the master ids. This is one of a series of changes
that make way for the stats output to be changed to python.

1 files changed, 7 insertions, 1 deletions

diff --git a/src/mem/cache/prefetch/base.hh b/src/mem/cache/prefetch/base.hh
index ead163215..1517be50c 100644
--- a/src/mem/cache/prefetch/base.hh
+++ b/src/mem/cache/prefetch/base.hh
@@ -70,7 +70,7 @@ class BasePrefetcher : public SimObject
     unsigned degree;
 
     /** If patterns should be found per context id */
-    bool useContextId;
+    bool useMasterId;
     /** Do we prefetch across page boundaries. */
     bool pageStop;
 
@@ -80,6 +80,12 @@ class BasePrefetcher : public SimObject
     /** Do we prefetch on only data reads, or on inst reads as well. */
     bool onlyData;
 
+    /** System we belong to */
+    System* system;
+
+    /** Request id for prefetches */
+    MasterID masterId;
+
   public:
 
     Stats::Scalar pfIdentified;