1# Copyright (c) 2006-2007 The Regents of The University of Michigan
2# Copyright (c) 2009,2015 Advanced Micro Devices, Inc.
3# Copyright (c) 2013 Mark D. Hill and David A. Wood
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions are
8# met: redistributions of source code must retain the above copyright

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28#
29# Authors: Brad Beckmann
30# Nilay Vaish
31
32import math
33import m5
34from m5.objects import *
35from m5.defines import buildEnv
36from Ruby import create_topology, create_directories
37from Ruby import send_evicts
38
39#
40# Declare caches used by the protocol
41#
42class L0Cache(RubyCache): pass
43class L1Cache(RubyCache): pass
44class L2Cache(RubyCache): pass

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61 # The ruby network creation expects the list of nodes in the system to be
62 # consistent with the NetDest list. Therefore the l1 controller nodes
63 # must be listed before the directory nodes and directory nodes before
64 # dma nodes, etc.
65 #
66 l0_cntrl_nodes = []
67 l1_cntrl_nodes = []
68 l2_cntrl_nodes = []
69 dma_cntrl_nodes = []
70
71 assert (options.num_cpus % options.num_clusters == 0)
72 num_cpus_per_cluster = options.num_cpus / options.num_clusters
73
74 assert (options.num_l2caches % options.num_clusters == 0)
75 num_l2caches_per_cluster = options.num_l2caches / options.num_clusters
76

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188
189 l2_cntrl.unblockToL2Cache = MessageBuffer()
190 l2_cntrl.unblockToL2Cache.slave = ruby_system.network.master
191 l2_cntrl.L1RequestToL2Cache = MessageBuffer()
192 l2_cntrl.L1RequestToL2Cache.slave = ruby_system.network.master
193 l2_cntrl.responseToL2Cache = MessageBuffer()
194 l2_cntrl.responseToL2Cache.slave = ruby_system.network.master
195
196 # Run each of the ruby memory controllers at a ratio of the frequency of
197 # the ruby system
198 # clk_divider value is a fix to pass regression.
199 ruby_system.memctrl_clk_domain = DerivedClockDomain(
200 clk_domain = ruby_system.clk_domain, clk_divider = 3)
201
202 dir_cntrl_nodes = create_directories(options, system.mem_ranges,
203 ruby_system)
204 for dir_cntrl in dir_cntrl_nodes:
205 # Connect the directory controllers and the network
206 dir_cntrl.requestToDir = MessageBuffer()
207 dir_cntrl.requestToDir.slave = ruby_system.network.master
208 dir_cntrl.responseToDir = MessageBuffer()
209 dir_cntrl.responseToDir.slave = ruby_system.network.master
210 dir_cntrl.responseFromDir = MessageBuffer()
211 dir_cntrl.responseFromDir.master = ruby_system.network.slave
212 dir_cntrl.responseFromMemory = MessageBuffer()

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