From: Lena Olson <lena@cs.wisc.edu>
Date: Tue, 18 Jun 2013 21:59:22 +0000 (-0500)
Subject: ruby: Fix prefetching for MESI_CMP_Directory
X-Git-Tag: stable_2013_10_14~36
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ed234ddec6464cd6445c20a305e9e0641edffa87;p=gem5.git

ruby: Fix prefetching for MESI_CMP_Directory

Transitions from present on PF_Ifetch were missing, causing a crash when
prefetching is enabled.

Committed by: Nilay Vaish <nilay@cs.wisc.edu>
---

diff --git a/src/mem/protocol/MESI_CMP_directory-L1cache.sm b/src/mem/protocol/MESI_CMP_directory-L1cache.sm
index 48845fdc6..e45a8df34 100644
--- a/src/mem/protocol/MESI_CMP_directory-L1cache.sm
+++ b/src/mem/protocol/MESI_CMP_directory-L1cache.sm
@@ -940,7 +940,7 @@ machine(L1Cache, "MESI Directory L1 Cache CMP")
   }
 
   transition({S,E,M,IS,IM,SM,IS_I,M_I,SINK_WB_ACK,PF_IS,PF_IM},
-             {PF_Load, PF_Store}) {
+             {PF_Load, PF_Store, PF_Ifetch}) {
       pq_popPrefetchQueue;
   }