From: Tiago Mück <tiago.muck@arm.com>
Date: Wed, 15 Apr 2020 23:42:12 +0000 (-0500)
Subject: mem-ruby: Removed invalid transition from MOESI_CMP dir
X-Git-Tag: v20.1.0.0~662
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8213cbcc97995658d718a1cf8fb6d500f0085d30;p=gem5.git

mem-ruby: Removed invalid transition from MOESI_CMP dir

When memory data is received we always have a valid directory
entry or are in a transient state.

Change-Id: I0e9120e320c157fd306909458cbc446275a4f738
Signed-off-by: Tiago Mück <tiago.muck@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27848
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Pouya Fotouhi <pfotouhi@ucdavis.edu>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Tested-by: Gem5 Cloud Project GCB service account <345032938727@cloudbuild.gserviceaccount.com>
---

diff --git a/src/mem/ruby/protocol/MOESI_CMP_directory-dir.sm b/src/mem/ruby/protocol/MOESI_CMP_directory-dir.sm
index e8d086335..6f868b49d 100644
--- a/src/mem/ruby/protocol/MOESI_CMP_directory-dir.sm
+++ b/src/mem/ruby/protocol/MOESI_CMP_directory-dir.sm
@@ -905,7 +905,7 @@ machine(MachineType:Directory, "Directory protocol")
     j_popIncomingUnblockQueue;
   }
 
-  transition({I, S, O, M, IS, SS, OO, MO, MM, MI, MIS, OS, OSS}, Memory_Data) {
+  transition({S, O, M, IS, SS, OO, MO, MM, MI, MIS, OS, OSS}, Memory_Data) {
     d_sendDataMsg;
     q_popMemQueue;
   }