f775c4c4a7
There has been some debate on how best to distribute the components library. This change builds the components library into the gem5 binary. The components library will now function similar to the `m5` library. There is no need for awkward imports or obtaining the library from some third-party source. Additional incorporated in this patch: * Added `__init__.py` to the Python modules. * Fixed a typo in the `abstract_ruby_cache_hierarchy.py` filename. * Ensured that imports within the library are relative. Issue-on: https://gem5.atlassian.net/browse/GEM5-1023 Change-Id: I3988c8710cda8dcf7b21109a2cf5c3f1608cc71a Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/49690 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Austin Harris <mail@austin-harris.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
88 lines
3.3 KiB
Python
88 lines
3.3 KiB
Python
# Copyright (c) 2021 The Regents of the University of California
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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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This file contains functions to extract gem5 runtime information.
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"""
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from m5.defines import buildEnv
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from .isas import ISA
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from .coherence_protocol import CoherenceProtocol
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def get_runtime_isa() -> ISA:
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"""Gets the target ISA.
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This can be inferred at runtime.
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:returns: The target ISA.
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"""
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isa_map = {
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"sparc": ISA.SPARC,
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"mips": ISA.MIPS,
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"null": ISA.NULL,
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"arm": ISA.ARM,
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"x86": ISA.X86,
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"power": ISA.POWER,
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"riscv": ISA.RISCV,
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}
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isa_str = str(buildEnv["TARGET_ISA"]).lower()
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if isa_str not in isa_map.keys():
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raise NotImplementedError(
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"ISA '" + buildEnv["TARGET_ISA"] + "' not recognized."
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)
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return isa_map[isa_str]
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def get_runtime_coherence_protocol() -> CoherenceProtocol:
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"""Gets the cache coherence protocol.
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This can be inferred at runtime.
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:returns: The cache coherence protocol.
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"""
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protocol_map = {
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"mi_example": CoherenceProtocol.MI_EXAMPLE,
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"moesi_hammer": CoherenceProtocol.ARM_MOESI_HAMMER,
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"garnet_standalone": CoherenceProtocol.GARNET_STANDALONE,
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"moesi_cmp_token": CoherenceProtocol.MOESI_CMP_TOKEN,
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"mesi_two_level": CoherenceProtocol.MESI_TWO_LEVEL,
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"moesi_amd_base": CoherenceProtocol.MOESI_AMD_BASE,
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"mesi_three_level_htm": CoherenceProtocol.MESI_THREE_LEVEL_HTM,
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"mesi_three_level": CoherenceProtocol.MESI_THREE_LEVEL,
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"gpu_viper": CoherenceProtocol.GPU_VIPER,
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"chi": CoherenceProtocol.CHI,
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}
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protocol_str = str(buildEnv["PROTOCOL"]).lower()
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if protocol_str not in protocol_map.keys():
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raise NotImplementedError(
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"Protocol '" + buildEnv["PROTOCOL"] + "' not recognized."
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)
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return protocol_map[protocol_str]
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