-# Copyright (c) 2014-2015, 2017 ARM Limited
+# Copyright (c) 2014-2015, 2017, 2019 ARM Limited
# All rights reserved.
#
# The license below extends only to copyright in the software and shall
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-# Authors: Radhika Jagtap
-# Andreas Hansson
+
+from __future__ import print_function
+from __future__ import absolute_import
import argparse
from m5.util import addToPath
from m5.stats import periodicStatDump
-addToPath('../common')
-import MemConfig
+addToPath('../')
+
+from common import ObjectList
+from common import MemConfig
# This script aims at triggering low power state transitions in the DRAM
# controller. The traffic generator is used in DRAM mode and traffic
# Use a single-channel DDR4-2400 in 16x4 configuration by default
parser.add_argument("--mem-type", default="DDR4_2400_16x4",
- choices=MemConfig.mem_names(),
+ choices=ObjectList.mem_list.get_names(),
help = "type of memory to use")
parser.add_argument("--mem-ranks", "-r", type=int, default=1,
parser.add_argument("--rd-perc", type=int, default=100,
help = "Percentage of read commands")
-parser.add_argument("--addr-map", type=int, default=1,
- help = "0: RoCoRaBaCh; 1: RoRaBaCoCh/RoRaBaChCo")
+parser.add_argument("--addr-map",
+ choices=m5.objects.AddrMap.vals,
+ default="RoRaBaCoCh", help = "DRAM address map policy")
parser.add_argument("--idle-end", type=int, default=50000000,
help = "time in ps of an idle period at the end ")
system.mem_ctrls[0].null = True
# Set the address mapping based on input argument
-# Default to RoRaBaCoCh
-if args.addr_map == 0:
- system.mem_ctrls[0].addr_mapping = "RoCoRaBaCh"
-elif args.addr_map == 1:
- system.mem_ctrls[0].addr_mapping = "RoRaBaCoCh"
-else:
- fatal("Did not specify a valid address map argument")
-
+system.mem_ctrls[0].addr_mapping = args.addr_map
system.mem_ctrls[0].page_policy = args.page_policy
# We create a traffic generator state for each param combination we want to
period = 250000000
# We specify the states in a config file input to the traffic generator.
-cfg_file_name = "configs/dram/lowp_sweep.cfg"
-cfg_file = open(cfg_file_name, 'w')
+cfg_file_name = "lowp_sweep.cfg"
+cfg_file_path = os.path.dirname(__file__) + "/" +cfg_file_name
+cfg_file = open(cfg_file_path, 'w')
# Get the number of banks
nbr_banks = int(system.mem_ctrls[0].banks_per_rank.value)
# We sweep itt max using the multipliers specified by the user.
itt_max_str = args.itt_list.strip().split()
-itt_max_multiples = map(lambda x : int(x), itt_max_str)
+itt_max_multiples = [ int(x) for x in itt_max_str ]
if len(itt_max_multiples) == 0:
fatal("String for itt-max-list detected empty\n")
-itt_max_values = map(lambda m : pd_entry_time * m, itt_max_multiples)
+itt_max_values = [ pd_entry_time * m for m in itt_max_multiples ]
# Generate request addresses in the entire range, assume we start at 0
max_addr = mem_range.end
# read_percent start_addr end_addr req_size min_itt max_itt data_limit
# stride_size page_size #banks #banks_util addr_map #ranks\n""")
+addr_map = m5.objects.AddrMap.map[args.addr_map]
+
nxt_state = 0
for itt_max in itt_max_values:
for bank in bank_util_values:
"%d %d %d %d %d %d %d %d %d\n" %
(nxt_state, period, "DRAM", args.rd_perc, max_addr,
burst_size, itt_min, itt_max, 0, stride_size,
- page_size, nbr_banks, bank, args.addr_map,
+ page_size, nbr_banks, bank, addr_map,
args.mem_ranks))
nxt_state = nxt_state + 1
cfg_file.close()
# create a traffic generator, and point it to the file we just created
-system.tgen = TrafficGen(config_file = cfg_file_name)
+system.tgen = TrafficGen(config_file = cfg_file_path)
# add a communication monitor
system.monitor = CommMonitor()
# Simulate for exactly as long as it takes to go through all the states
# This is why sim exists.
m5.simulate(nxt_state * period + idle_period)
-print "--- Done DRAM low power sweep ---"
-print "Fixed params - "
-print "\tburst: %d, banks: %d, max stride: %d, itt min: %s ns" % \
- (burst_size, nbr_banks, max_stride, itt_min)
-print "Swept params - "
-print "\titt max multiples input:", itt_max_multiples
-print "\titt max values", itt_max_values
-print "\tbank utilization values", bank_util_values
-print "\tstride values:", stride_values
-print "Traffic gen config file:", cfg_file_name
+print("--- Done DRAM low power sweep ---")
+print("Fixed params - ")
+print("\tburst: %d, banks: %d, max stride: %d, itt min: %s ns" % \
+ (burst_size, nbr_banks, max_stride, itt_min))
+print("Swept params - ")
+print("\titt max multiples input:", itt_max_multiples)
+print("\titt max values", itt_max_values)
+print("\tbank utilization values", bank_util_values)
+print("\tstride values:", stride_values)
+print("Traffic gen config file:", cfg_file_name)
projects / gem5.git / blobdiff