tests/configs/gpu-randomtest-ruby.py

   1 #
   2 #  Copyright (c) 2010-2015 Advanced Micro Devices, Inc.
   3 #  All rights reserved.
   4 #
   5 #  For use for simulation and test purposes only
   6 #
   7 #  Redistribution and use in source and binary forms, with or without
   8 #  modification, are permitted provided that the following conditions are met:
   9 #
  10 #  1. Redistributions of source code must retain the above copyright notice,
  11 #  this list of conditions and the following disclaimer.
  12 #
  13 #  2. Redistributions in binary form must reproduce the above copyright notice,
  14 #  this list of conditions and the following disclaimer in the documentation
  15 #  and/or other materials provided with the distribution.
  16 #
  17 #  3. Neither the name of the copyright holder nor the names of its contributors
  18 #  may be used to endorse or promote products derived from this software
  19 #  without specific prior written permission.
  20 #
  21 #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  22 #  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23 #  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24 #  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  25 #  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26 #  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27 #  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  28 #  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  29 #  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  30 #  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31 #  POSSIBILITY OF SUCH DAMAGE.
  32 #
  33 #  Author: Brad Beckmann
  34 #
  35
  36 import m5
  37 from m5.objects import *
  38 from m5.defines import buildEnv
  39 from m5.util import addToPath
  40 import os, optparse, sys
  41
  42 m5.util.addToPath('../configs/')
  43
  44 from ruby import Ruby
  45 from common import Options
  46
  47 parser = optparse.OptionParser()
  48 Options.addCommonOptions(parser)
  49
  50 # add the gpu specific options expected by the the gpu and gpu_RfO
  51 parser.add_option("-u", "--num-compute-units", type="int", default=8,
  52                   help="number of compute units in the GPU")
  53 parser.add_option("--num-cp", type="int", default=0,
  54                   help="Number of GPU Command Processors (CP)")
  55 parser.add_option("--simds-per-cu", type="int", default=4, help="SIMD units" \
  56                   "per CU")
  57 parser.add_option("--wf-size", type="int", default=64,
  58                   help="Wavefront size(in workitems)")
  59 parser.add_option("--wfs-per-simd", type="int", default=10, help="Number of " \
  60                   "WF slots per SIMD")
  61
  62 # Add the ruby specific and protocol specific options
  63 Ruby.define_options(parser)
  64
  65 (options, args) = parser.parse_args()
  66
  67 #
  68 # Set the default cache size and associativity to be very small to encourage
  69 # races between requests and writebacks.
  70 #
  71 options.l1d_size="256B"
  72 options.l1i_size="256B"
  73 options.l2_size="512B"
  74 options.l3_size="1kB"
  75 options.l1d_assoc=2
  76 options.l1i_assoc=2
  77 options.l2_assoc=2
  78 options.l3_assoc=2
  79 options.num_compute_units=8
  80 options.num_sqc=2
  81
  82 # Check to for the GPU_RfO protocol.  Other GPU protocols are non-SC and will
  83 # not work with the Ruby random tester.
  84 assert(buildEnv['PROTOCOL'] == 'GPU_RfO')
  85
  86 #
  87 # create the tester and system, including ruby
  88 #
  89 tester = RubyTester(check_flush = False, checks_to_complete = 100,
  90                     wakeup_frequency = 10, num_cpus = options.num_cpus)
  91
  92 # We set the testers as cpu for ruby to find the correct clock domains
  93 # for the L1 Objects.
  94 system = System(cpu = tester)
  95
  96 # Dummy voltage domain for all our clock domains
  97 system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
  98 system.clk_domain = SrcClockDomain(clock = '1GHz',
  99                                    voltage_domain = system.voltage_domain)
 100
 101 system.mem_ranges = AddrRange('256MB')
 102
 103 Ruby.create_system(options, False, system)
 104
 105 # Create a separate clock domain for Ruby
 106 system.ruby.clk_domain = SrcClockDomain(clock = '1GHz',
 107                                         voltage_domain = system.voltage_domain)
 108
 109 tester.num_cpus = len(system.ruby._cpu_ports)
 110
 111 #
 112 # The tester is most effective when randomization is turned on and
 113 # artifical delay is randomly inserted on messages
 114 #
 115 system.ruby.randomization = True
 116
 117 for ruby_port in system.ruby._cpu_ports:
 118     #
 119     # Tie the ruby tester ports to the ruby cpu read and write ports
 120     #
 121     if ruby_port.support_data_reqs and ruby_port.support_inst_reqs:
 122         tester.cpuInstDataPort = ruby_port.slave
 123     elif ruby_port.support_data_reqs:
 124         tester.cpuDataPort = ruby_port.slave
 125     elif ruby_port.support_inst_reqs:
 126         tester.cpuInstPort = ruby_port.slave
 127
 128     # Do not automatically retry stalled Ruby requests
 129     ruby_port.no_retry_on_stall = True
 130
 131     #
 132     # Tell the sequencer this is the ruby tester so that it
 133     # copies the subblock back to the checker
 134     #
 135     ruby_port.using_ruby_tester = True
 136
 137 # -----------------------
 138 # run simulation
 139 # -----------------------
 140
 141 root = Root(full_system = False, system = system )
 142 root.system.mem_mode = 'timing'