From db286903ee7fe8e2441c118db27ed71c40a99cc4 Mon Sep 17 00:00:00 2001
From: Yu-Cheng Chang <rogerycchang@google.com>
Date: Fri, 8 Dec 2023 08:10:45 +0800
Subject: [PATCH] stdlib: Fix the chi protocol of arm boot tests (#658)

Change-Id: I63f17a73b2e16bc26d9b41babc63439a6040791f
---
 .../gem5/components/cachehierarchies/chi/nodes/directory.py     | 1 +
 .../gem5/components/cachehierarchies/chi/nodes/dma_requestor.py | 2 ++
 .../cachehierarchies/chi/nodes/private_l1_moesi_cache.py        | 2 ++
 3 files changed, 5 insertions(+)

diff --git a/src/python/gem5/components/cachehierarchies/chi/nodes/directory.py b/src/python/gem5/components/cachehierarchies/chi/nodes/directory.py
index 7d7a16cd5f..b2515d3c84 100644
--- a/src/python/gem5/components/cachehierarchies/chi/nodes/directory.py
+++ b/src/python/gem5/components/cachehierarchies/chi/nodes/directory.py
@@ -61,6 +61,7 @@ class SimpleDirectory(AbstractNode):
         self.sequencer = NULL
 
         self.use_prefetcher = False
+        self.prefetcher = NULL
 
         # Set up home node that allows three hop protocols
         self.is_HN = True
diff --git a/src/python/gem5/components/cachehierarchies/chi/nodes/dma_requestor.py b/src/python/gem5/components/cachehierarchies/chi/nodes/dma_requestor.py
index 2997c33ce7..850c7e9002 100644
--- a/src/python/gem5/components/cachehierarchies/chi/nodes/dma_requestor.py
+++ b/src/python/gem5/components/cachehierarchies/chi/nodes/dma_requestor.py
@@ -25,6 +25,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 from m5.objects import (
+    NULL,
     ClockDomain,
     RubyCache,
 )
@@ -67,6 +68,7 @@ class DMARequestor(AbstractNode):
 
         self.send_evictions = False
         self.use_prefetcher = False
+        self.prefetcher = NULL
         # Some reasonable default TBE params
         self.number_of_TBEs = 16
         self.number_of_repl_TBEs = 1
diff --git a/src/python/gem5/components/cachehierarchies/chi/nodes/private_l1_moesi_cache.py b/src/python/gem5/components/cachehierarchies/chi/nodes/private_l1_moesi_cache.py
index 477c0f9b63..8b056b3967 100644
--- a/src/python/gem5/components/cachehierarchies/chi/nodes/private_l1_moesi_cache.py
+++ b/src/python/gem5/components/cachehierarchies/chi/nodes/private_l1_moesi_cache.py
@@ -25,6 +25,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 from m5.objects import (
+    NULL,
     ClockDomain,
     RubyCache,
     RubyNetwork,
@@ -56,6 +57,7 @@ class PrivateL1MOESICache(AbstractNode):
         self.clk_domain = clk_domain
         self.send_evictions = core.requires_send_evicts()
         self.use_prefetcher = False
+        self.prefetcher = NULL
 
         # Only applies to home nodes
         self.is_HN = False