MOESI_hammer.py revision 6892:6a2db6c8a9b1 
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
33from m5.util import addToPath
34
35
36#
37# Note: the L1 Cache latency is only used by the sequencer on fast path hits
38#
39class L1Cache(RubyCache):
40    assoc = 2
41    latency = 3
42    size = 32768
43
44#
45# Note: the L2 Cache latency is not currently used
46#
47class L2Cache(RubyCache):
48    assoc = 16
49    latency = 15
50    size = 1048576
51
52def create_system(options, physmem):
53
54    if buildEnv['PROTOCOL'] != 'MOESI_hammer':
55        panic("This script requires the MOESI_hammer protocol to be built.")
56
57    sequencers = []
58    #
59    # The ruby network creation expects the list of nodes in the system to be
60    # consistent with the NetDest list.  Therefore the l1 controller nodes must be
61    # listed before the directory nodes and directory nodes before dma nodes, etc.
62    #
63    l1_cntrl_nodes = []
64    dir_cntrl_nodes = []
65    dma_cntrl_nodes = []
66
67    #
68    # Must create the individual controllers before the network to ensure the
69    # controller constructors are called before the network constructor
70    #
71    for i in range(options.num_cpus):
72        #
73        # First create the Ruby objects associated with this cpu
74        # Eventually this code should go in a python file specific to the
75        # MOESI_hammer protocol
76        #
77        l1i_profiler = CacheProfiler(description = ("l1i_%s_profiler" % i))
78        l1i_cache = L1Cache(cache_profiler = l1i_profiler)
79
80        l1d_profiler = CacheProfiler(description = ("l1d_%s_profiler" % i))
81        l1d_cache = L1Cache(cache_profiler = l1d_profiler)
82
83        l2_profiler = CacheProfiler(description = ("l2_%s_profiler" % i))
84        l2_cache = L2Cache(cache_profiler = l2_profiler)
85
86        cpu_seq = RubySequencer(icache = l1i_cache,
87                                dcache = l1d_cache,
88                                funcmem_port = physmem.port)
89
90        l1_cntrl = L1Cache_Controller(version = i,
91                                      sequencer = cpu_seq,
92                                      L1IcacheMemory = l1i_cache,
93                                      L1DcacheMemory = l1d_cache,
94                                      L2cacheMemory = l2_cache)
95
96        mem_cntrl = RubyMemoryControl(version = i)
97
98        dir_cntrl = Directory_Controller(version = i,
99                                         directory = RubyDirectoryMemory(),
100                                         memBuffer = mem_cntrl)
101
102        dma_cntrl = DMA_Controller(version = i,
103                                   dma_sequencer = DMASequencer())
104
105        #
106        # Add controllers and sequencers to the appropriate lists
107        # As noted above: Independent list are track to maintain the order of
108        # nodes/controllers assumed by the ruby network
109        #
110        sequencers.append(cpu_seq)
111        l1_cntrl_nodes.append(l1_cntrl)
112        dir_cntrl_nodes.append(dir_cntrl)
113        dma_cntrl_nodes.append(dma_cntrl)
114
115    all_cntrls = l1_cntrl_nodes + dir_cntrl_nodes + dma_cntrl_nodes
116
117    return (sequencers, dir_cntrl_nodes, all_cntrls)
118