configs/ruby/MOESI_hammer.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
  35
  36 #
  37 # Note: the L1 Cache latency is only used by the sequencer on fast path hits
  38 #
  39 class L1Cache(RubyCache):
  40     latency = 3
  41
  42 #
  43 # Note: the L2 Cache latency is not currently used
  44 #
  45 class L2Cache(RubyCache):
  46     latency = 15
  47
  48 def create_system(options, phys_mem, piobus, dma_devices):
  49
  50     if buildEnv['PROTOCOL'] != 'MOESI_hammer':
  51         panic("This script requires the MOESI_hammer protocol to be built.")
  52
  53     cpu_sequencers = []
  54
  55     #
  56     # The ruby network creation expects the list of nodes in the system to be
  57     # consistent with the NetDest list.  Therefore the l1 controller nodes must be
  58     # listed before the directory nodes and directory nodes before dma nodes, etc.
  59     #
  60     l1_cntrl_nodes = []
  61     dir_cntrl_nodes = []
  62     dma_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         #
  73         l1i_cache = L1Cache(size = options.l1i_size,
  74                             assoc = options.l1i_assoc)
  75         l1d_cache = L1Cache(size = options.l1d_size,
  76                             assoc = options.l1d_assoc)
  77         l2_cache = L2Cache(size = options.l2_size,
  78                            assoc = options.l2_assoc)
  79
  80         cpu_seq = RubySequencer(icache = l1i_cache,
  81                                 dcache = l1d_cache,
  82                                 physMemPort = phys_mem.port,
  83                                 physmem = phys_mem)
  84
  85         if piobus != None:
  86             cpu_seq.pio_port = piobus.port
  87
  88         l1_cntrl = L1Cache_Controller(version = i,
  89                                       sequencer = cpu_seq,
  90                                       L1IcacheMemory = l1i_cache,
  91                                       L1DcacheMemory = l1d_cache,
  92                                       L2cacheMemory = l2_cache)
  93         #
  94         # Add controllers and sequencers to the appropriate lists
  95         #
  96         cpu_sequencers.append(cpu_seq)
  97         l1_cntrl_nodes.append(l1_cntrl)
  98
  99     phys_mem_size = long(phys_mem.range.second) - long(phys_mem.range.first) + 1
 100     mem_module_size = phys_mem_size / options.num_dirs
 101
 102     for i in xrange(options.num_dirs):
 103         #
 104         # Create the Ruby objects associated with the directory controller
 105         #
 106
 107         mem_cntrl = RubyMemoryControl(version = i)
 108
 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                                          memBuffer = mem_cntrl)
 117
 118         dir_cntrl_nodes.append(dir_cntrl)
 119
 120     for i, dma_device in enumerate(dma_devices):
 121         #
 122         # Create the Ruby objects associated with the dma controller
 123         #
 124         dma_seq = DMASequencer(version = i,
 125                                physMemPort = phys_mem.port,
 126                                physmem = phys_mem)
 127
 128         dma_cntrl = DMA_Controller(version = i,
 129                                    dma_sequencer = dma_seq)
 130
 131         dma_cntrl.dma_sequencer.port = dma_device.dma
 132         dma_cntrl_nodes.append(dma_cntrl)
 133
 134     all_cntrls = l1_cntrl_nodes + dir_cntrl_nodes + dma_cntrl_nodes
 135
 136     return (cpu_sequencers, dir_cntrl_nodes, all_cntrls)