configs: Add --enable-dvm CL option to CHI configs
By using the "--enable-dvm" command line option it is possible
to issue DVM messages from Arm CPUs
JIRA: https://gem5.atlassian.net/browse/GEM5-1097
Change-Id: I0a2b683ad3403590515bd406e241b66961cee964
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/57301
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
diff --git a/configs/ruby/CHI.py b/configs/ruby/CHI.py
index 7cac5ed..c94dc94 100644
--- a/configs/ruby/CHI.py
+++ b/configs/ruby/CHI.py
@@ -43,6 +43,7 @@
default=None,
help="NoC config. parameters and bindings. "
"Required for CustomMesh topology")
+ parser.add_argument("--enable-dvm", default=False, action="store_true")
def read_config_file(file):
''' Read file as a module and return it '''
@@ -65,6 +66,13 @@
if options.num_l3caches < 1:
m5.fatal('--num-l3caches must be at least 1')
+ if full_system and options.enable_dvm:
+ if len(cpus) <= 1:
+ m5.fatal("--enable-dvm can't be used with a single CPU")
+ for cpu in cpus:
+ for decoder in cpu.decoder:
+ decoder.dvm_enabled = True
+
# read specialized classes from config file if provided
if options.chi_config:
chi_defs = read_config_file(options.chi_config)
