configs/ruby/Network_test.py

   1 # Copyright (c) 2006-2007 The Regents of The University of Michigan
   2 # Copyright (c) 2009 Advanced Micro Devices, Inc.
   3 # All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions are
   7 # met: redistributions of source code must retain the above copyright
   8 # notice, this list of conditions and the following disclaimer;
   9 # redistributions in binary form must reproduce the above copyright
  10 # notice, this list of conditions and the following disclaimer in the
  11 # documentation and/or other materials provided with the distribution;
  12 # neither the name of the copyright holders nor the names of its
  13 # contributors may be used to endorse or promote products derived from
  14 # this software without specific prior written permission.
  15 #
  16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27 #
  28 # Authors: Brad Beckmann
  29
  30 import m5
  31 from m5.objects import *
  32 from m5.defines import buildEnv
  33 from m5.util import addToPath
  34 from Ruby import create_topology
  35
  36 #
  37 # Declare caches used by the protocol
  38 #
  39 class Cache(RubyCache): pass
  40
  41 def define_options(parser):
  42     return
  43
  44 def create_system(options, full_system, system, dma_ports, ruby_system):
  45
  46     if buildEnv['PROTOCOL'] != 'Network_test':
  47         panic("This script requires the Network_test protocol to be built.")
  48
  49     cpu_sequencers = []
  50
  51     #
  52     # The Garnet tester protocol does not support fs nor dma
  53     #
  54     assert(dma_ports == [])
  55
  56     #
  57     # The ruby network creation expects the list of nodes in the system to be
  58     # consistent with the NetDest list.  Therefore the l1 controller nodes must be
  59     # listed before the directory nodes and directory nodes before dma nodes, etc.
  60     #
  61     l1_cntrl_nodes = []
  62     dir_cntrl_nodes = []
  63
  64     #
  65     # Must create the individual controllers before the network to ensure the
  66     # controller constructors are called before the network constructor
  67     #
  68
  69     for i in xrange(options.num_cpus):
  70         #
  71         # First create the Ruby objects associated with this cpu
  72         # Only one cache exists for this protocol, so by default use the L1D
  73         # config parameters.
  74         #
  75         cache = Cache(size = options.l1d_size,
  76                       assoc = options.l1d_assoc)
  77
  78         #
  79         # Only one unified L1 cache exists.  Can cache instructions and data.
  80         #
  81         l1_cntrl = L1Cache_Controller(version = i,
  82                                       cacheMemory = cache,
  83                                       ruby_system = ruby_system)
  84
  85         cpu_seq = RubySequencer(icache = cache,
  86                                 dcache = cache,
  87                                 using_network_tester = True,
  88                                 ruby_system = ruby_system)
  89
  90         l1_cntrl.sequencer = cpu_seq
  91         exec("ruby_system.l1_cntrl%d = l1_cntrl" % i)
  92
  93         # Add controllers and sequencers to the appropriate lists
  94         cpu_sequencers.append(cpu_seq)
  95         l1_cntrl_nodes.append(l1_cntrl)
  96
  97         # Connect the L1 controllers and the network
  98         l1_cntrl.mandatoryQueue = MessageBuffer()
  99         l1_cntrl.requestFromCache = MessageBuffer()
 100         l1_cntrl.responseFromCache = MessageBuffer()
 101         l1_cntrl.forwardFromCache = MessageBuffer()
 102
 103
 104     phys_mem_size = sum(map(lambda r: r.size(), system.mem_ranges))
 105     assert(phys_mem_size % options.num_dirs == 0)
 106     mem_module_size = phys_mem_size / options.num_dirs
 107
 108     for i in xrange(options.num_dirs):
 109         dir_size = MemorySize('0B')
 110         dir_size.value = mem_module_size
 111
 112         dir_cntrl = Directory_Controller(version = i,
 113                                          directory = \
 114                                          RubyDirectoryMemory(version = i,
 115                                                              size = dir_size),
 116                                          ruby_system = ruby_system)
 117
 118         exec("ruby_system.dir_cntrl%d = dir_cntrl" % i)
 119         dir_cntrl_nodes.append(dir_cntrl)
 120
 121         # Connect the directory controllers and the network
 122         dir_cntrl.requestToDir = MessageBuffer()
 123         dir_cntrl.forwardToDir = MessageBuffer()
 124         dir_cntrl.responseToDir = MessageBuffer()
 125
 126
 127     all_cntrls = l1_cntrl_nodes + dir_cntrl_nodes
 128     topology = create_topology(all_cntrls, options)
 129     return (cpu_sequencers, dir_cntrl_nodes, topology)