f85286b3de
Port proxies are used to replace non-structural ports, and thus enable all ports in the system to correspond to a structural entity. This has the advantage of accessing memory through the normal memory subsystem and thus allowing any constellation of distributed memories, address maps, etc. Most accesses are done through the "system port" that is used for loading binaries, debugging etc. For the entities that belong to the CPU, e.g. threads and thread contexts, they wrap the CPU data port in a port proxy. The following replacements are made: FunctionalPort > PortProxy TranslatingPort > SETranslatingPortProxy VirtualPort > FSTranslatingPortProxy --HG-- rename : src/mem/vport.cc => src/mem/fs_translating_port_proxy.cc rename : src/mem/vport.hh => src/mem/fs_translating_port_proxy.hh rename : src/mem/translating_port.cc => src/mem/se_translating_port_proxy.cc rename : src/mem/translating_port.hh => src/mem/se_translating_port_proxy.hh
124 lines
4 KiB
Python
124 lines
4 KiB
Python
# Copyright (c) 2006-2007 The Regents of The University of Michigan
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# Copyright (c) 2010 Advanced Micro Devices, Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Ron Dreslinski
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import m5
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from m5.objects import *
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from m5.defines import buildEnv
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from m5.util import addToPath
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import os, optparse, sys
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if buildEnv['FULL_SYSTEM']:
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panic("This script requires system-emulation mode (*_SE).")
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# Get paths we might need
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config_path = os.path.dirname(os.path.abspath(__file__))
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config_root = os.path.dirname(config_path)
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m5_root = os.path.dirname(config_root)
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addToPath(config_root+'/configs/common')
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addToPath(config_root+'/configs/ruby')
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import Ruby
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parser = optparse.OptionParser()
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#
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# Add the ruby specific and protocol specific options
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#
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Ruby.define_options(parser)
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execfile(os.path.join(config_root, "configs/common", "Options.py"))
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(options, args) = parser.parse_args()
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#
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# Set the default cache size and associativity to be very small to encourage
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# races between requests and writebacks.
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#
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options.l1d_size="256B"
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options.l1i_size="256B"
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options.l2_size="512B"
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options.l3_size="1kB"
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options.l1d_assoc=2
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options.l1i_assoc=2
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options.l2_assoc=2
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options.l3_assoc=2
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#MAX CORES IS 8 with the fals sharing method
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nb_cores = 8
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# ruby does not support atomic, functional, or uncacheable accesses
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cpus = [ MemTest(atomic=False, percent_functional=50,
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percent_uncacheable=0, suppress_func_warnings=True) \
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for i in xrange(nb_cores) ]
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# overwrite options.num_cpus with the nb_cores value
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options.num_cpus = nb_cores
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# system simulated
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system = System(cpu = cpus,
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funcmem = PhysicalMemory(),
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physmem = PhysicalMemory())
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Ruby.create_system(options, system)
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assert(len(cpus) == len(system.ruby._cpu_ruby_ports))
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for (i, ruby_port) in enumerate(system.ruby._cpu_ruby_ports):
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#
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# Tie the cpu test and functional ports to the ruby cpu ports and
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# physmem, respectively
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#
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cpus[i].test = ruby_port.port
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cpus[i].functional = system.funcmem.port
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#
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# Since the memtester is incredibly bursty, increase the deadlock
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# threshold to 1 million cycles
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#
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ruby_port.deadlock_threshold = 1000000
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#
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# Ruby doesn't need the backing image of memory when running with
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# the tester.
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#
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ruby_port.access_phys_mem = False
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# Connect the system port for loading of binaries etc
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system.system_port = system.ruby._sys_port_proxy.port
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# -----------------------
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# run simulation
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# -----------------------
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root = Root(system = system)
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root.system.mem_mode = 'timing'
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# Not much point in this being higher than the L1 latency
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m5.ticks.setGlobalFrequency('1ns')
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