config: Add a mem-type config option to se/fs scripts

This patch enables selection of the memory controller class through a
mem-type command-line option. Behind the scenes, this option is
treated much like the cpu-type, and a similar framework is used to
resolve the valid options, and translate the short-hand description to
a valid class.

The regression scripts are updated with a hardcoded memory class for
the moment. The best solution going forward is probably to get the
memory out of the makeSystem functions, but Ruby complicates things as
it does not connect the memory controller to the membus.

--HG--
rename : configs/common/CpuConfig.py => configs/common/MemConfig.py

1 files changed, 6 insertions, 0 deletions

diff --git a/configs/common/Simulation.py b/configs/common/Simulation.py
index cecf030ad..27b1a510a 100644
--- a/configs/common/Simulation.py
+++ b/configs/common/Simulation.py
@@ -44,6 +44,7 @@ from os import getcwd
 from os.path import join as joinpath
 
 import CpuConfig
+import MemConfig
 
 import m5
 from m5.defines import buildEnv
@@ -84,6 +85,11 @@ def setCPUClass(options):
 
     return (TmpClass, test_mem_mode, CPUClass)
 
+def setMemClass(options):
+    """Returns a memory controller class."""
+
+    return MemConfig.get(options.mem_type)
+
 def setWorkCountOptions(system, options):
     if options.work_item_id != None:
         system.work_item_id = options.work_item_id