mem: Avoid unecessary retries when bus peer is not ready

This patch removes unecessary retries that happened when the bus layer
itself was no longer busy, but the the peer was not yet ready. Instead
of sending a retry that will inevitably not succeed, the bus now
silenty waits until the peer sends a retry.

1 files changed, 0 insertions, 8 deletions

diff --git a/src/mem/bus.hh b/src/mem/bus.hh
index bdcf319f4..f01a3ae7f 100644
--- a/src/mem/bus.hh
+++ b/src/mem/bus.hh
@@ -221,14 +221,6 @@ class BaseBus : public MemObject
         std::deque<SrcType*> waitingForLayer;
 
         /**
-         * Port that we are currently in the process of telling to
-         * retry a previously failed attempt to perform a timing
-         * transaction. This is a valid port when in the retry state,
-         * and NULL when in busy or idle.
-         */
-        SrcType* retryingPort;
-
-        /**
          * Track who is waiting for the retry when receiving it from a
          * peer. If no port is waiting NULL is stored.
          */