-# Copyright (c) 2014 ARM Limited
+# Copyright (c) 2014-2015 ARM Limited
# All rights reserved.
#
# The license below extends only to copyright in the software and shall
parser = optparse.OptionParser()
# Use a single-channel DDR3-1600 x64 by default
-parser.add_option("--mem-type", type="choice", default="ddr3_1600_x64",
+parser.add_option("--mem-type", type="choice", default="DDR3_1600_x64",
choices=MemConfig.mem_names(),
help = "type of memory to use")
-parser.add_option("--ranks", "-r", type="int", default=1,
+parser.add_option("--mem-ranks", "-r", type="int", default=1,
help = "Number of ranks to iterate across")
parser.add_option("--rd_perc", type="int", default=100,
mem_range = AddrRange('256MB')
system.mem_ranges = [mem_range]
+# do not worry about reserving space for the backing store
+mmap_using_noreserve = True
+
# force a single channel to match the assumptions in the DRAM traffic
# generator
options.mem_channels = 1
+options.external_memory_system = 0
MemConfig.config_mem(options, system)
# the following assumes that we are using the native DRAM
if not isinstance(system.mem_ctrls[0], m5.objects.DRAMCtrl):
fatal("This script assumes the memory is a DRAMCtrl subclass")
-# Set number of ranks based on input argument; default is 1 rank
-system.mem_ctrls[0].ranks_per_channel = options.ranks
+# there is no point slowing things down by saving any data
+system.mem_ctrls[0].null = True
# Set the address mapping based on input argument
# Default to RoRaBaCoCh
(nxt_state, period, options.mode, options.rd_perc,
max_addr, burst_size, itt, itt, 0, stride_size,
page_size, nbr_banks, bank, options.addr_map,
- options.ranks))
+ options.mem_ranks))
nxt_state = nxt_state + 1
cfg_file.write("INIT 0\n")