sims/external/gem5: update to gem5 23.1

This temporarily drops support for DDIO and the L3 cache.

docker/cleanup_gem5.sh

@@ -6,7 +6,6 @@ cd sims/external/gem5
 cp -r --parents \
   build/X86/gem5.fast \
   configs \
-  cache_conf.patch \
   ../gem5-new/
 #`find build -name \*.py` \
 cd ..

experiments/simbricks/orchestration/simulators.py

@@ -463,9 +463,9 @@ class Gem5Host(HostSim):
         cmd = f'{env.gem5_path(self.variant)} --outdir={env.gem5_outdir(self)} '
         cmd += ' '.join(self.extra_main_args)
         cmd += (
-            f' {env.gem5_py_path} --caches --l2cache --l3cache '
-            '--l1d_size=32kB --l1i_size=32kB --l2_size=2MB --l3_size=32MB '
-            '--l1d_assoc=8 --l1i_assoc=8 --l2_assoc=4 --l3_assoc=16 '
+            f' {env.gem5_py_path} --caches --l2cache '
+            '--l1d_size=32kB --l1i_size=32kB --l2_size=32MB '
+            '--l1d_assoc=8 --l1i_assoc=8 --l2_assoc=16 '
             f'--cacheline_size=64 --cpu-clock={self.cpu_freq}'
             f' --sys-clock={self.sys_clock} '
             f'--checkpoint-dir={env.gem5_cpdir(self)} '
@@ -474,7 +474,7 @@ class Gem5Host(HostSim):
             f'--disk-image={env.cfgtar_path(self)} '
             f'--cpu-type={cpu_type} --mem-size={self.node_config.memory}MB '
             f'--num-cpus={self.node_config.cores} '
-            '--ddio-enabled --ddio-way-part=8 --mem-type=DDR4_2400_16x4 '
+            '--mem-type=DDR4_2400_16x4 '
         )
 
         if self.node_config.kcmd_append:

gem5 @ 092eccad

-Subproject commit 9bb11fc5a0e8a1e722322a4ca40b2a3a4d293c88
+Subproject commit 092eccad02c91b176f39a237749fc165804130b9

sims/external/rules.mk

@@ -37,10 +37,11 @@ $(d)gem5:
 	git clone https://github.com/simbricks/gem5.git $@
 
 $(d)gem5/ready: $(d)gem5
-	+cd $< && scons build/X86/gem5.$(GEM5_VARIANT) \
-		CCFLAGS="-I$(abspath $(lib_dir))" \
-		LIBPATH="$(abspath $(lib_dir))" \
-	    -j`nproc`
+	cd $< && \
+		CCFLAGS_EXTRA="-I$(abspath $(lib_dir))" \
+		LIBRARY_PATH="$(abspath $(lib_dir))" \
+		scons build/X86/gem5.$(GEM5_VARIANT) \
+		--ignore-style -j`nproc`
 	touch $@
 
 gem5-clean: