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Diffstat (limited to 'ext')
| -rw-r--r-- | ext/sst/tests/test6_arm_4c.py | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/ext/sst/tests/test6_arm_4c.py b/ext/sst/tests/test6_arm_4c.py new file mode 100644 index 000000000..e8683145e --- /dev/null +++ b/ext/sst/tests/test6_arm_4c.py @@ -0,0 +1,199 @@ +# Copyright (c)2015 ARM Limited +# All rights reserved. +# +# The license below extends only to copyright in the software and shall +# not be construed as granting a license to any other intellectual +# property including but not limited to intellectual property relating +# to a hardware implementation of the functionality of the software +# licensed hereunder. You may use the software subject to the license +# terms below provided that you ensure that this notice is replicated +# unmodified and in its entirety in all distributions of the software, +# modified or unmodified, in source code or in binary form. +# +# 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: Curtis Dunham + +import sst +import sys +import os + +lat="1 ns" +buslat="2 ns" +clockRate = "1GHz" + + +def getenv(name): + res = "" + try: + res = os.environ[name] + except KeyError: + pass + return res + +baseCacheParams = ({ + "debug" :getenv("DEBUG"), + "debug_level" : 6, + "coherence_protocol" : "MSI", + "replacement_policy" : "LRU", + "cache_line_size" : 64, + "cache_frequency" : clockRate, + "statistics" : 1 + }) + +l1CacheParams = ({ + "debug" : getenv("DEBUG"), + "debug_level" : 6, + "L1" : 1, + "cache_size" : "64 KB", + "associativity" : 4, + "access_latency_cycles" : 2, + "low_network_links" : 1 + }) + +l2CacheParams = ({ + "debug" : getenv("DEBUG"), + "debug_level" : 6, + "L1" : 0, + "cache_size" : "256 KB", + "associativity" : 8, + "access_latency_cycles" : 8, + "high_network_links" : 1, + "mshr_num_entries" : 4096, + "low_network_links" : 1 + }) + + +GEM5 = sst.Component("system", "gem5.gem5") +GEM5.addParams({ + "comp_debug" : getenv("GEM5_DEBUG"), + "gem5DebugFlags" : getenv("M5_DEBUG"), + "frequency" : clockRate, + "cmd" : "configs/example/fs.py --num-cpus 4 --disk-image=vexpress64-openembedded_minimal-armv8_20130623-376.img --root-device=/dev/sda2 --kernel=vmlinux.aarch64.20140821 --dtb-filename=vexpress.aarch64.20140821.dtb --mem-size=256MB --machine-type=VExpress_EMM64 --cpu-type=timing --external-memory-system=sst --initialize-only" + }) + +bus = sst.Component("membus", "memHierarchy.Bus") +bus.addParams({ + "bus_frequency": "2GHz", + "debug" : getenv("DEBUG"), + "debug_level" : 8 + }) + +def buildL1(name, m5, connector): + cache = sst.Component(name, "memHierarchy.Cache") + cache.addParams(baseCacheParams) + cache.addParams(l1CacheParams) + link = sst.Link("cpu_%s_link"%name) + link.connect((m5, connector, lat), (cache, "high_network_0", lat)) + return cache + +SysBusConn = buildL1("gem5SystemBus", GEM5, "system.external_memory.port") +bus_port = 0 +link = sst.Link("sysbus_bus_link") +link.connect((SysBusConn, "low_network_0", buslat), (bus, "high_network_%u" % bus_port, buslat)) + +bus_port = bus_port + 1 +ioCache = buildL1("ioCache", GEM5, "system.iocache.port") +ioCache.addParams({ + "debug" : 0, + "debug_level" : 6, + "cache_size" : "16 KB", + "associativity" : 4 + }) +link = sst.Link("ioCache_bus_link") +link.connect((ioCache, "low_network_0", buslat), (bus, "high_network_%u" % bus_port, buslat)) + +def buildCPU(m5, num): + l1iCache = buildL1("cpu%u.l1iCache" % num, m5, "system.cpu%u.icache.port" % num) + l1dCache = buildL1("cpu%u.l1dCache" % num, m5, "system.cpu%u.dcache.port" % num) + itlbCache = buildL1("cpu%u.itlbCache" % num, m5, "system.cpu%u.itb_walker_cache.port" % num) + dtlbCache = buildL1("cpu%u.dtlbCache" % num, m5, "system.cpu%u.dtb_walker_cache.port" % num) + l1dCache.addParams({ + "debug" : 0, + "debug_level" : 10, + "snoop_l1_invalidations" : 1 + }) + + global bus_port + link = sst.Link("cpu%u.l1iCache_bus_link" % num) ; bus_port = bus_port + 1 + link.connect((l1iCache, "low_network_0", buslat), (bus, "high_network_%u" % bus_port, buslat)) + link = sst.Link("cpu%u.l1dCache_bus_link" % num) ; bus_port = bus_port + 1 + link.connect((l1dCache, "low_network_0", buslat), (bus, "high_network_%u" % bus_port, buslat)) + link = sst.Link("cpu%u.itlbCache_bus_link" % num) ; bus_port = bus_port + 1 + link.connect((itlbCache, "low_network_0", buslat), (bus, "high_network_%u" % bus_port, buslat)) + link = sst.Link("cpu%u.dtlbCache_bus_link" % num) ; bus_port = bus_port + 1 + link.connect((dtlbCache, "low_network_0", buslat), (bus, "high_network_%u" % bus_port, buslat)) + +buildCPU(GEM5, 0) +buildCPU(GEM5, 1) +buildCPU(GEM5, 2) +buildCPU(GEM5, 3) + +l2cache = sst.Component("l2cache", "memHierarchy.Cache") +l2cache.addParams(baseCacheParams) +l2cache.addParams(l2CacheParams) +l2cache.addParams({ + "network_address" : "2", + "directory_at_next_level" : "1" +}) + +link = sst.Link("l2cache_bus_link") +link.connect((l2cache, "high_network_0", buslat), (bus, "low_network_0", buslat)) + +memory = sst.Component("memory", "memHierarchy.MemController") +memory.addParams({ + "request_width" : 64, + "coherence_protocol" : "MSI", + "access_time" : "25 ns", + "backend.mem_size" : 256, + "clock" : "2GHz", + "debug" : getenv("DEBUG"), + "range_start" : 0, # 2 * (1024 ** 3), # it's behind a directory controller. + }) + +comp_chiprtr = sst.Component("chiprtr", "merlin.hr_router") +comp_chiprtr.addParams({ + "xbar_bw" : "16GB/s", + "link_bw" : "16GB/s", + "input_buf_size" : "1KB", + "num_ports" : "3", + "flit_size" : "72B", + "output_buf_size" : "1KB", + "id" : "0", + "topology" : "merlin.singlerouter" +}) +comp_dirctrl = sst.Component("dirctrl", "memHierarchy.DirectoryController") +comp_dirctrl.addParams({ + "coherence_protocol" : "MSI", + "network_address" : "1", + "entry_cache_size" : "16384", + "network_bw" : "1GB/s", + "addr_range_start" : 2 * (1024 ** 3), + "addr_range_end" : 2 * (1024 ** 3) + 256 * (1024 ** 2) +}) + +sst.Link("link_cache_net_0").connect((l2cache, "directory", "10ns"), (comp_chiprtr, "port2", "2ns")) +sst.Link("link_dir_net_0").connect((comp_chiprtr, "port1", "2ns"), (comp_dirctrl, "network", "2ns")) +sst.Link("l2cache_io_link").connect((comp_chiprtr, "port0", "2ns"), (GEM5, "network", buslat)) +sst.Link("link_dir_mem_link").connect((comp_dirctrl, "memory", "10ns"), (memory, "direct_link", "10ns")) |