MOESI_CMP_directory.py revision 7015
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 30import math 31import m5 32from m5.objects import * 33from m5.defines import buildEnv 34from m5.util import addToPath 35 36# 37# Note: the L1 Cache latency is only used by the sequencer on fast path hits 38# 39class L1Cache(RubyCache): 40 latency = 3 41 42# 43# Note: the L2 Cache latency is not currently used 44# 45class L2Cache(RubyCache): 46 latency = 15 47 48def create_system(options, phys_mem, piobus, dma_devices): 49 50 if buildEnv['PROTOCOL'] != 'MOESI_CMP_directory': 51 panic("This script requires the MOESI_CMP_directory 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 l2_cntrl_nodes = [] 62 dir_cntrl_nodes = [] 63 dma_cntrl_nodes = [] 64 65 # 66 # Must create the individual controllers before the network to ensure the 67 # controller constructors are called before the network constructor 68 # 69 70 for i in xrange(options.num_cpus): 71 # 72 # First create the Ruby objects associated with this cpu 73 # 74 l1i_cache = L1Cache(size = options.l1i_size, 75 assoc = options.l1i_assoc) 76 l1d_cache = L1Cache(size = options.l1d_size, 77 assoc = options.l1d_assoc) 78 79 cpu_seq = RubySequencer(version = i, 80 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 l2_select_num_bits = \ 93 math.log(options.num_l2caches, 2)) 94 # 95 # Add controllers and sequencers to the appropriate lists 96 # 97 cpu_sequencers.append(cpu_seq) 98 l1_cntrl_nodes.append(l1_cntrl) 99 100 for i in xrange(options.num_l2caches): 101 # 102 # First create the Ruby objects associated with this cpu 103 # 104 l2_cache = L2Cache(size = options.l2_size, 105 assoc = options.l2_assoc) 106 107 l2_cntrl = L2Cache_Controller(version = i, 108 L2cacheMemory = l2_cache) 109 110 l2_cntrl_nodes.append(l2_cntrl) 111 112 phys_mem_size = long(phys_mem.range.second) - long(phys_mem.range.first) + 1 113 mem_module_size = phys_mem_size / options.num_dirs 114 115 for i in xrange(options.num_dirs): 116 # 117 # Create the Ruby objects associated with the directory controller 118 # 119 120 mem_cntrl = RubyMemoryControl(version = i) 121 122 dir_size = MemorySize('0B') 123 dir_size.value = mem_module_size 124 125 dir_cntrl = Directory_Controller(version = i, 126 directory = \ 127 RubyDirectoryMemory(version = i, 128 size = dir_size), 129 memBuffer = mem_cntrl) 130 131 dir_cntrl_nodes.append(dir_cntrl) 132 133 for i, dma_device in enumerate(dma_devices): 134 # 135 # Create the Ruby objects associated with the dma controller 136 # 137 dma_seq = DMASequencer(version = i, 138 physMemPort = phys_mem.port, 139 physmem = phys_mem) 140 141 dma_cntrl = DMA_Controller(version = i, 142 dma_sequencer = dma_seq) 143 144 dma_cntrl.dma_sequencer.port = dma_device.dma 145 dma_cntrl_nodes.append(dma_cntrl) 146 147 all_cntrls = l1_cntrl_nodes + \ 148 l2_cntrl_nodes + \ 149 dir_cntrl_nodes + \ 150 dma_cntrl_nodes 151 152 return (cpu_sequencers, dir_cntrl_nodes, all_cntrls) 153