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-rw-r--r--configs/ruby/Ruby.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/configs/ruby/Ruby.py b/configs/ruby/Ruby.py
index b99e251d3..44d6bdfcc 100644
--- a/configs/ruby/Ruby.py
+++ b/configs/ruby/Ruby.py
@@ -233,6 +233,14 @@ def create_system(options, full_system, system, piobus = None, dma_ports = []):
ruby.num_of_sequencers = len(cpu_sequencers)
ruby.random_seed = options.random_seed
+def send_evicts(options):
+ # currently, 2 scenarios warrant forwarding evictions to the CPU:
+ # 1. The O3 model must keep the LSQ coherent with the caches
+ # 2. The x86 mwait instruction is built on top of coherence invalidations
+ if options.cpu_type == "detailed" or buildEnv['TARGET_ISA'] == 'x86':
+ return True
+ return False
+
# Create a backing copy of physical memory in case required
if options.access_backing_store:
ruby.phys_mem = SimpleMemory(range=AddrRange(options.mem_size),