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# Copyright (c) 2006-2007 The Regents of The University of Michigan
# Copyright (c) 2009 Advanced Micro Devices, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Brad Beckmann
import math
import m5
from m5.objects import *
from m5.defines import buildEnv
from Ruby import create_topology, create_directories
from Ruby import send_evicts
#
# Declare caches used by the protocol
#
class L1Cache(RubyCache): pass
class L2Cache(RubyCache): pass
#
# Probe filter is a cache
#
class ProbeFilter(RubyCache): pass
def define_options(parser):
parser.add_option("--allow-atomic-migration", action="store_true",
help="allow migratory sharing for atomic only accessed blocks")
parser.add_option("--pf-on", action="store_true",
help="Hammer: enable Probe Filter")
parser.add_option("--dir-on", action="store_true",
help="Hammer: enable Full-bit Directory")
def create_system(options, full_system, system, dma_ports, bootmem,
ruby_system):
if buildEnv['PROTOCOL'] != 'MOESI_hammer':
panic("This script requires the MOESI_hammer protocol to be built.")
cpu_sequencers = []
#
# The ruby network creation expects the list of nodes in the system to be
# consistent with the NetDest list. Therefore the l1 controller nodes must be
# listed before the directory nodes and directory nodes before dma nodes, etc.
#
l1_cntrl_nodes = []
dma_cntrl_nodes = []
#
# Must create the individual controllers before the network to ensure the
# controller constructors are called before the network constructor
#
block_size_bits = int(math.log(options.cacheline_size, 2))
for i in xrange(options.num_cpus):
#
# First create the Ruby objects associated with this cpu
#
l1i_cache = L1Cache(size = options.l1i_size,
assoc = options.l1i_assoc,
start_index_bit = block_size_bits,
is_icache = True)
l1d_cache = L1Cache(size = options.l1d_size,
assoc = options.l1d_assoc,
start_index_bit = block_size_bits)
l2_cache = L2Cache(size = options.l2_size,
assoc = options.l2_assoc,
start_index_bit = block_size_bits)
# the ruby random tester reuses num_cpus to specify the
# number of cpu ports connected to the tester object, which
# is stored in system.cpu. because there is only ever one
# tester object, num_cpus is not necessarily equal to the
# size of system.cpu; therefore if len(system.cpu) == 1
# we use system.cpu[0] to set the clk_domain, thereby ensuring
# we don't index off the end of the cpu list.
if len(system.cpu) == 1:
clk_domain = system.cpu[0].clk_domain
else:
clk_domain = system.cpu[i].clk_domain
l1_cntrl = L1Cache_Controller(version=i, L1Icache=l1i_cache,
L1Dcache=l1d_cache, L2cache=l2_cache,
no_mig_atomic=not \
options.allow_atomic_migration,
send_evictions=send_evicts(options),
transitions_per_cycle=options.ports,
clk_domain=clk_domain,
ruby_system=ruby_system)
cpu_seq = RubySequencer(version=i, icache=l1i_cache,
dcache=l1d_cache,clk_domain=clk_domain,
ruby_system=ruby_system)
l1_cntrl.sequencer = cpu_seq
if options.recycle_latency:
l1_cntrl.recycle_latency = options.recycle_latency
exec("ruby_system.l1_cntrl%d = l1_cntrl" % i)
# Add controllers and sequencers to the appropriate lists
cpu_sequencers.append(cpu_seq)
l1_cntrl_nodes.append(l1_cntrl)
# Connect the L1 controller and the network
# Connect the buffers from the controller to network
l1_cntrl.requestFromCache = MessageBuffer()
l1_cntrl.requestFromCache.master = ruby_system.network.slave
l1_cntrl.responseFromCache = MessageBuffer()
l1_cntrl.responseFromCache.master = ruby_system.network.slave
l1_cntrl.unblockFromCache = MessageBuffer()
l1_cntrl.unblockFromCache.master = ruby_system.network.slave
l1_cntrl.triggerQueue = MessageBuffer()
# Connect the buffers from the network to the controller
l1_cntrl.mandatoryQueue = MessageBuffer()
l1_cntrl.forwardToCache = MessageBuffer()
l1_cntrl.forwardToCache.slave = ruby_system.network.master
l1_cntrl.responseToCache = MessageBuffer()
l1_cntrl.responseToCache.slave = ruby_system.network.master
#
# determine size and index bits for probe filter
# By default, the probe filter size is configured to be twice the
# size of the L2 cache.
#
pf_size = MemorySize(options.l2_size)
pf_size.value = pf_size.value * 2
dir_bits = int(math.log(options.num_dirs, 2))
pf_bits = int(math.log(pf_size.value, 2))
if options.numa_high_bit:
if options.pf_on or options.dir_on:
# if numa high bit explicitly set, make sure it does not overlap
# with the probe filter index
assert(options.numa_high_bit - dir_bits > pf_bits)
# set the probe filter start bit to just above the block offset
pf_start_bit = block_size_bits
else:
if dir_bits > 0:
pf_start_bit = dir_bits + block_size_bits - 1
else:
pf_start_bit = block_size_bits
# Run each of the ruby memory controllers at a ratio of the frequency of
# the ruby system
# clk_divider value is a fix to pass regression.
ruby_system.memctrl_clk_domain = DerivedClockDomain(
clk_domain=ruby_system.clk_domain,
clk_divider=3)
mem_dir_cntrl_nodes, rom_dir_cntrl_node = create_directories(
options, system.mem_ranges, bootmem, ruby_system, system)
dir_cntrl_nodes = mem_dir_cntrl_nodes[:]
if rom_dir_cntrl_node is not None:
dir_cntrl_nodes.append(rom_dir_cntrl_node)
for dir_cntrl in dir_cntrl_nodes:
pf = ProbeFilter(size = pf_size, assoc = 4,
start_index_bit = pf_start_bit)
dir_cntrl.probeFilter = pf
dir_cntrl.probe_filter_enabled = options.pf_on
dir_cntrl.full_bit_dir_enabled = options.dir_on
if options.recycle_latency:
dir_cntrl.recycle_latency = options.recycle_latency
# Connect the directory controller to the network
dir_cntrl.forwardFromDir = MessageBuffer()
dir_cntrl.forwardFromDir.master = ruby_system.network.slave
dir_cntrl.responseFromDir = MessageBuffer()
dir_cntrl.responseFromDir.master = ruby_system.network.slave
dir_cntrl.dmaResponseFromDir = MessageBuffer(ordered = True)
dir_cntrl.dmaResponseFromDir.master = ruby_system.network.slave
dir_cntrl.triggerQueue = MessageBuffer(ordered = True)
dir_cntrl.unblockToDir = MessageBuffer()
dir_cntrl.unblockToDir.slave = ruby_system.network.master
dir_cntrl.responseToDir = MessageBuffer()
dir_cntrl.responseToDir.slave = ruby_system.network.master
dir_cntrl.requestToDir = MessageBuffer()
dir_cntrl.requestToDir.slave = ruby_system.network.master
dir_cntrl.dmaRequestToDir = MessageBuffer(ordered = True)
dir_cntrl.dmaRequestToDir.slave = ruby_system.network.master
dir_cntrl.responseFromMemory = MessageBuffer()
for i, dma_port in enumerate(dma_ports):
#
# Create the Ruby objects associated with the dma controller
#
dma_seq = DMASequencer(version = i,
ruby_system = ruby_system,
slave = dma_port)
dma_cntrl = DMA_Controller(version = i,
dma_sequencer = dma_seq,
transitions_per_cycle = options.ports,
ruby_system = ruby_system)
exec("ruby_system.dma_cntrl%d = dma_cntrl" % i)
dma_cntrl_nodes.append(dma_cntrl)
if options.recycle_latency:
dma_cntrl.recycle_latency = options.recycle_latency
# Connect the dma controller to the network
dma_cntrl.responseFromDir = MessageBuffer(ordered = True)
dma_cntrl.responseFromDir.slave = ruby_system.network.master
dma_cntrl.requestToDir = MessageBuffer()
dma_cntrl.requestToDir.master = ruby_system.network.slave
dma_cntrl.mandatoryQueue = MessageBuffer()
all_cntrls = l1_cntrl_nodes + dir_cntrl_nodes + dma_cntrl_nodes
# Create the io controller and the sequencer
if full_system:
io_seq = DMASequencer(version=len(dma_ports), ruby_system=ruby_system)
ruby_system._io_port = io_seq
io_controller = DMA_Controller(version = len(dma_ports),
dma_sequencer = io_seq,
ruby_system = ruby_system)
ruby_system.io_controller = io_controller
# Connect the dma controller to the network
io_controller.responseFromDir = MessageBuffer(ordered = True)
io_controller.responseFromDir.slave = ruby_system.network.master
io_controller.requestToDir = MessageBuffer()
io_controller.requestToDir.master = ruby_system.network.slave
io_controller.mandatoryQueue = MessageBuffer()
all_cntrls = all_cntrls + [io_controller]
ruby_system.network.number_of_virtual_networks = 6
topology = create_topology(all_cntrls, options)
return (cpu_sequencers, mem_dir_cntrl_nodes, topology)
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