1 # Copyright (c) 2009 Advanced Micro Devices, Inc.
2 # Copyright (c) 2016 Georgia Institute of Technology
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.
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.
28 # Authors: Brad Beckmann
32 from m5
.objects
import *
33 from m5
.defines
import buildEnv
34 from m5
.util
import addToPath
35 from Ruby
import create_topology
, create_directories
38 # Declare caches used by the protocol
40 class L1Cache(RubyCache
): pass
42 def define_options(parser
):
45 def create_system(options
, full_system
, system
, dma_ports
, ruby_system
):
46 if buildEnv
['PROTOCOL'] != 'Garnet_standalone':
47 panic("This script requires Garnet_standalone protocol to be built.")
52 # The Garnet_standalone protocol does not support fs nor dma
54 assert(dma_ports
== [])
57 # The ruby network creation expects the list of nodes in the system to be
58 # consistent with the NetDest list.
59 # Therefore the l1 controller nodes must be listed before
60 # the directory nodes and directory nodes before dma nodes, etc.
64 # Must create the individual controllers before the network to ensure the
65 # controller constructors are called before the network constructor
68 for i
in xrange(options
.num_cpus
):
70 # First create the Ruby objects associated with this cpu
71 # Only one cache exists for this protocol, so by default use the L1D
74 cache
= L1Cache(size
= options
.l1d_size
,
75 assoc
= options
.l1d_assoc
)
78 # Only one unified L1 cache exists. Can cache instructions and data.
80 l1_cntrl
= L1Cache_Controller(version
= i
,
82 ruby_system
= ruby_system
)
84 cpu_seq
= RubySequencer(icache
= cache
,
86 garnet_standalone
= True,
87 ruby_system
= ruby_system
)
89 l1_cntrl
.sequencer
= cpu_seq
90 exec("ruby_system.l1_cntrl%d = l1_cntrl" % i
)
92 # Add controllers and sequencers to the appropriate lists
93 cpu_sequencers
.append(cpu_seq
)
94 l1_cntrl_nodes
.append(l1_cntrl
)
96 # Connect the L1 controllers and the network
97 l1_cntrl
.mandatoryQueue
= MessageBuffer()
98 l1_cntrl
.requestFromCache
= MessageBuffer()
99 l1_cntrl
.responseFromCache
= MessageBuffer()
100 l1_cntrl
.forwardFromCache
= MessageBuffer()
103 dir_cntrl_nodes
= create_directories(options
, system
.mem_ranges
,
105 for dir_cntrl
in dir_cntrl_nodes
:
106 # Connect the directory controllers and the network
107 dir_cntrl
.requestToDir
= MessageBuffer()
108 dir_cntrl
.forwardToDir
= MessageBuffer()
109 dir_cntrl
.responseToDir
= MessageBuffer()
112 all_cntrls
= l1_cntrl_nodes
+ dir_cntrl_nodes
113 ruby_system
.network
.number_of_virtual_networks
= 3
114 topology
= create_topology(all_cntrls
, options
)
115 return (cpu_sequencers
, dir_cntrl_nodes
, topology
)