configs: Remove Python 2 compatibility code in Arm configs

Remove uses of six and imports from __future__ and use native Python 3
functionality instead.

Change-Id: If37718ba99def2d6f176604e20d4ebeda75474ad
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/39581
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>

configs/example/arm/baremetal.py

@@ -39,9 +39,6 @@ Research Starter Kit on System Modeling. More information can be found
 at: http://www.arm.com/ResearchEnablement/SystemModeling
 """
 
-from __future__ import print_function
-from __future__ import absolute_import
-
 import os
 import m5
 from m5.util import addToPath

configs/example/arm/devices.py

@@ -35,20 +35,12 @@
 
 # System components used by the bigLITTLE.py configuration script
 
-from __future__ import print_function
-from __future__ import absolute_import
-
-import six
-
 import m5
 from m5.objects import *
 m5.util.addToPath('../../')
 from common.Caches import *
 from common import ObjectList
 
-if six.PY3:
-    long = int
-
 have_kvm = "ArmV8KvmCPU" in ObjectList.cpu_list.get_names()
 have_fastmodel = "FastModelCortexA76" in ObjectList.cpu_list.get_names()
 
@@ -320,7 +312,7 @@ def simpleSystem(BaseSystem, caches, mem_size, platform=None, **kwargs):
             self.iobridge = Bridge(delay='50ns')
             # Device DMA -> MEM
             mem_range = self.realview._mem_regions[0]
-            assert long(mem_range.size()) >= long(Addr(mem_size))
+            assert int(mem_range.size()) >= int(Addr(mem_size))
             self.mem_ranges = [
                 AddrRange(start=mem_range.start, size=mem_size) ]
 

configs/example/arm/dist_bigLITTLE.py

@@ -36,9 +36,6 @@
 # This configuration file extends the example ARM big.LITTLE(tm)
 # configuration to enabe dist-gem5 siulations of big.LITTLE systems.
 
-from __future__ import print_function
-from __future__ import absolute_import
-
 import argparse
 import os
 

configs/example/arm/fs_bigLITTLE.py

@@ -36,10 +36,6 @@
 # This is an example configuration script for full system simulation of
 # a generic ARM bigLITTLE system.
 
-
-from __future__ import print_function
-from __future__ import absolute_import
-
 import argparse
 import os
 import sys

configs/example/arm/fs_power.py

@@ -36,9 +36,6 @@
 # This configuration file extends the example ARM big.LITTLE(tm)
 # with example power models.
 
-from __future__ import print_function
-from __future__ import absolute_import
-
 import argparse
 import os
 

configs/example/arm/starter_fs.py

@@ -38,9 +38,6 @@ Research Starter Kit on System Modeling. More information can be found
 at: http://www.arm.com/ResearchEnablement/SystemModeling
 """
 
-from __future__ import print_function
-from __future__ import absolute_import
-
 import os
 import m5
 from m5.util import addToPath

configs/example/arm/starter_se.py

@@ -38,9 +38,6 @@ Research Starter Kit on System Modeling. More information can be found
 at: http://www.arm.com/ResearchEnablement/SystemModeling
 """
 
-from __future__ import print_function
-from __future__ import absolute_import
-
 import os
 import m5
 from m5.util import addToPath

configs/example/arm/workloads.py

@@ -34,9 +34,6 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 
-from __future__ import print_function
-from __future__ import absolute_import
-
 import inspect
 import m5
 from m5.objects import *