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2017-06-13scons: Make MOESI_CMP_directory the default ARM ruby protocolNikos Nikoleris
Previously ARM binaries were by default compiled with the MI_example protocol. The MI_example protocol cannot properly support load/store exclusive instructions and therefore it cannot be used to simulate multicore ARM systems. This change changes to MOESI_CMP_directory as the default ruby protocol for ARM systems. Change-Id: I942d950ba466aea9a75f3d8764f9f3eddd0c3baa Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/2906 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2014-07-23cpu: `Minor' in-order CPU modelAndrew Bardsley
This patch contains a new CPU model named `Minor'. Minor models a four stage in-order execution pipeline (fetch lines, decompose into macroops, decompose macroops into microops, execute). The model was developed to support the ARM ISA but should be fixable to support all the remaining gem5 ISAs. It currently also works for Alpha, and regressions are included for ARM and Alpha (including Linux boot). Documentation for the model can be found in src/doc/inside-minor.doxygen and its internal operations can be visualised using the Minorview tool utils/minorview.py. Minor was designed to be fairly simple and not to engage in a lot of instruction annotation. As such, it currently has very few gathered stats and may lack other gem5 features. Minor is faster than the o3 model. Sample results: Benchmark | Stat host_seconds (s) ---------------+--------v--------v-------- (on ARM, opt) | simple | o3 | minor | timing | timing | timing ---------------+--------+--------+-------- 10.linux-boot | 169 | 1883 | 1075 10.mcf | 117 | 967 | 491 20.parser | 668 | 6315 | 3146 30.eon | 542 | 3413 | 2414 40.perlbmk | 2339 | 20905 | 11532 50.vortex | 122 | 1094 | 588 60.bzip2 | 2045 | 18061 | 9662 70.twolf | 207 | 2736 | 1036
2012-01-28SE/FS: Pull FULL_SYSTEM out of the build_opts filesGabe Black
--HG-- rename : build_opts/ALPHA_FS => build_opts/ALPHA rename : build_opts/ALPHA_SE_MESI_CMP_directory => build_opts/ALPHA_MESI_CMP_directory rename : build_opts/ALPHA_SE_MOESI_CMP_directory => build_opts/ALPHA_MOESI_CMP_directory rename : build_opts/ALPHA_SE_MOESI_CMP_token => build_opts/ALPHA_MOESI_CMP_token rename : build_opts/ALPHA_SE_MOESI_hammer => build_opts/ALPHA_MOESI_hammer rename : build_opts/ALPHA_SE_Network_test => build_opts/ALPHA_Network_test rename : build_opts/ARM_FS => build_opts/ARM rename : build_opts/MIPS_SE => build_opts/MIPS rename : build_opts/POWER_SE => build_opts/POWER rename : build_opts/SPARC_FS => build_opts/SPARC rename : build_opts/X86_FS => build_opts/X86