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 m5
31from m5.objects import *
32from m5.defines import buildEnv
33
34#
35# Note: the L1 Cache latency is only used by the sequencer on fast path hits
36#
37class L1Cache(RubyCache):
38 latency = 2
39
40#
41# Note: the L2 Cache latency is not currently used
42#
43class L2Cache(RubyCache):
44 latency = 10
45
46def define_options(parser):
47 parser.add_option("--allow-atomic-migration", action="store_true",
48 help="allow migratory sharing for atomic only accessed blocks")
49
50def create_system(options, system, piobus, dma_devices):
51
52 if buildEnv['PROTOCOL'] != 'MOESI_hammer':
53 panic("This script requires the MOESI_hammer protocol to be built.")
54
55 cpu_sequencers = []
56
57 #
58 # The ruby network creation expects the list of nodes in the system to be
59 # consistent with the NetDest list. Therefore the l1 controller nodes must be
60 # listed before the directory nodes and directory nodes before dma nodes, etc.
61 #
62 l1_cntrl_nodes = []
63 dir_cntrl_nodes = []
64 dma_cntrl_nodes = []
65
66 #
67 # Must create the individual controllers before the network to ensure the
68 # controller constructors are called before the network constructor
69 #
70
71 for i in xrange(options.num_cpus):
72 #
73 # First create the Ruby objects associated with this cpu
74 #
75 l1i_cache = L1Cache(size = options.l1i_size,
76 assoc = options.l1i_assoc)
77 l1d_cache = L1Cache(size = options.l1d_size,
78 assoc = options.l1d_assoc)
79 l2_cache = L2Cache(size = options.l2_size,
80 assoc = options.l2_assoc)
81
82 cpu_seq = RubySequencer(version = i,
83 icache = l1i_cache,
84 dcache = l1d_cache,
85 physMemPort = system.physmem.port,
86 physmem = system.physmem)
87
88 if piobus != None:
89 cpu_seq.pio_port = piobus.port
90
91 l1_cntrl = L1Cache_Controller(version = i,
92 sequencer = cpu_seq,
93 L1IcacheMemory = l1i_cache,
94 L1DcacheMemory = l1d_cache,
95 L2cacheMemory = l2_cache,
96 no_mig_atomic = not \
97 options.allow_atomic_migration)
98
99 exec("system.l1_cntrl%d = l1_cntrl" % i)
100 #
101 # Add controllers and sequencers to the appropriate lists
102 #
103 cpu_sequencers.append(cpu_seq)
104 l1_cntrl_nodes.append(l1_cntrl)
105
106 phys_mem_size = long(system.physmem.range.second) - \
107 long(system.physmem.range.first) + 1
108 mem_module_size = phys_mem_size / options.num_dirs
109
110 for i in xrange(options.num_dirs):
111 #
112 # Create the Ruby objects associated with the directory controller
113 #
114
115 mem_cntrl = RubyMemoryControl(version = i)
116
117 dir_size = MemorySize('0B')
118 dir_size.value = mem_module_size
119
120 dir_cntrl = Directory_Controller(version = i,
121 directory = \
122 RubyDirectoryMemory( \
123 version = i,
124 size = dir_size,
125 use_map = options.use_map,
126 map_levels = \
127 options.map_levels),
128 memBuffer = mem_cntrl)
129
130 exec("system.dir_cntrl%d = dir_cntrl" % i)
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 = system.physmem.port,
139 physmem = system.physmem)
140
141 dma_cntrl = DMA_Controller(version = i,
142 dma_sequencer = dma_seq)
143
144 exec("system.dma_cntrl%d = dma_cntrl" % i)
145 if dma_device.type == 'MemTest':
146 system.dma_cntrl.dma_sequencer.port = dma_device.test
147 else:
148 system.dma_cntrl.dma_sequencer.port = dma_device.dma
149 dma_cntrl.dma_sequencer.port = dma_device.dma
150 dma_cntrl_nodes.append(dma_cntrl)
151
152 all_cntrls = l1_cntrl_nodes + dir_cntrl_nodes + dma_cntrl_nodes
153
154 return (cpu_sequencers, dir_cntrl_nodes, all_cntrls)