sweep.py (10323:5169ebd26163) sweep.py (10392:0100f00a229e)
1# Copyright (c) 2014 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license

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53
54parser = optparse.OptionParser()
55
56# Use a single-channel DDR3-1600 x64 by default
57parser.add_option("--mem-type", type="choice", default="ddr3_1600_x64",
58 choices=MemConfig.mem_names(),
59 help = "type of memory to use")
60
1# Copyright (c) 2014 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license

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53
54parser = optparse.OptionParser()
55
56# Use a single-channel DDR3-1600 x64 by default
57parser.add_option("--mem-type", type="choice", default="ddr3_1600_x64",
58 choices=MemConfig.mem_names(),
59 help = "type of memory to use")
60
61parser.add_option("--ranks", "-r", type="int", default=1,
62 help = "Number of ranks to iterate across")
63
64parser.add_option("--rd_perc", type="int", default=100,
65 help = "Percentage of read commands")
66
67parser.add_option("--mode", type="choice", default="DRAM",
68 choices=["DRAM", "DRAM_ROTATE"],
69 help = "DRAM: Random traffic; \
70 DRAM_ROTATE: Traffic rotating across banks and ranks")
71
72parser.add_option("--addr_map", type="int", default=1,
73 help = "0: RoCoRaBaCh; 1: RoRaBaCoCh/RoRaBaChCo")
74
61(options, args) = parser.parse_args()
62
63if args:
64 print "Error: script doesn't take any positional arguments"
65 sys.exit(1)
66
67# at the moment we stay with the default open-adaptive page policy,
68# and address mapping

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84options.mem_channels = 1
85MemConfig.config_mem(options, system)
86
87# the following assumes that we are using the native DRAM
88# controller, check to be sure
89if not isinstance(system.mem_ctrls[0], m5.objects.DRAMCtrl):
90 fatal("This script assumes the memory is a DRAMCtrl subclass")
91
75(options, args) = parser.parse_args()
76
77if args:
78 print "Error: script doesn't take any positional arguments"
79 sys.exit(1)
80
81# at the moment we stay with the default open-adaptive page policy,
82# and address mapping

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98options.mem_channels = 1
99MemConfig.config_mem(options, system)
100
101# the following assumes that we are using the native DRAM
102# controller, check to be sure
103if not isinstance(system.mem_ctrls[0], m5.objects.DRAMCtrl):
104 fatal("This script assumes the memory is a DRAMCtrl subclass")
105
92# for now the generator assumes a single rank
93system.mem_ctrls[0].ranks_per_channel = 1
106# Set number of ranks based on input argument; default is 1 rank
107system.mem_ctrls[0].ranks_per_channel = options.ranks
94
108
109# Set the address mapping based on input argument
110# Default to RoRaBaCoCh
111if options.addr_map == 0:
112 system.mem_ctrls[0].addr_mapping = "RoCoRaBaCh"
113elif options.addr_map == 1:
114 system.mem_ctrls[0].addr_mapping = "RoRaBaCoCh"
115else:
116 fatal("Did not specify a valid address map argument")
117
95# stay in each state for 0.25 ms, long enough to warm things up, and
96# short enough to avoid hitting a refresh
97period = 250000000
98
99# this is where we go off piste, and print the traffic generator
100# configuration that we will later use, crazy but it works
101cfg_file_name = "configs/dram/sweep.cfg"
102cfg_file = open(cfg_file_name, 'w')

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129max_stride = min(512, page_size)
130
131# now we create the state by iterating over the stride size from burst
132# size to the max stride, and from using only a single bank up to the
133# number of banks available
134nxt_state = 0
135for bank in range(1, nbr_banks + 1):
136 for stride_size in range(burst_size, max_stride + 1, burst_size):
118# stay in each state for 0.25 ms, long enough to warm things up, and
119# short enough to avoid hitting a refresh
120period = 250000000
121
122# this is where we go off piste, and print the traffic generator
123# configuration that we will later use, crazy but it works
124cfg_file_name = "configs/dram/sweep.cfg"
125cfg_file = open(cfg_file_name, 'w')

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152max_stride = min(512, page_size)
153
154# now we create the state by iterating over the stride size from burst
155# size to the max stride, and from using only a single bank up to the
156# number of banks available
157nxt_state = 0
158for bank in range(1, nbr_banks + 1):
159 for stride_size in range(burst_size, max_stride + 1, burst_size):
137 cfg_file.write("STATE %d %d DRAM 100 0 %d "
138 "%d %d %d %d %d %d %d %d 1\n" %
139 (nxt_state, period, max_addr, burst_size, itt, itt, 0,
140 stride_size, page_size, nbr_banks, bank))
160 cfg_file.write("STATE %d %d %s %d 0 %d %d "
161 "%d %d %d %d %d %d %d %d %d\n" %
162 (nxt_state, period, options.mode, options.rd_perc,
163 max_addr, burst_size, itt, itt, 0, stride_size,
164 page_size, nbr_banks, bank, options.addr_map,
165 options.ranks))
141 nxt_state = nxt_state + 1
142
143cfg_file.write("INIT 0\n")
144
145# go through the states one by one
146for state in range(1, nxt_state):
147 cfg_file.write("TRANSITION %d %d 1\n" % (state - 1, state))
148

--- 29 unchanged lines hidden --- 		166 nxt_state = nxt_state + 1
167
168cfg_file.write("INIT 0\n")
169
170# go through the states one by one
171for state in range(1, nxt_state):
172 cfg_file.write("TRANSITION %d %d 1\n" % (state - 1, state))
173

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