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2019-01-11misc: updated shabang for python scriptAndrea Mondelli
The default python on MacOS doesn’t have an alias to python2. The official python version supported in gem5 is Python2.7. This patch updates the shabang according to the version required in gem5. Change-Id: I9533c0f7858b5b3cab0ef101be1ee5cd718105b0 Reviewed-on: https://gem5-review.googlesource.com/c/15375 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
2018-12-06ext: Remove unused bankwiseMode variableMatteo Andreozzi
Apple LLVM version 10.0.0 (clang-1000.11.45.2) complains about unused members variables Change-Id: If1f2210c09e80b632cb3688aaa7df0594f9e49c9 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/13228 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-12-06ext: Build googlemock with googletestGiacomo Travaglini
googlemock needs to be built together with googletest. This patch is enabling it by doing the following things * Moving googletest and googlemock under the same top level directory, so that we have a single SConscript for building them. This also matches googletest directory structure: googletest |_googletest |_googlemock * Adding a shared SConscript which is building gmock and gtest as libgtest * Removing googletest/SConscript Change-Id: I88accbdd2e80fb47efaa17819233371fbad6acaa Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/14696 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-12-06ext: Import googlemock, release version 1.8.0Giacomo Travaglini
gtest 1.8.0 is already part of gem5; this patch adds a matching gmock so that it is possible to create Mocks in gem5 unit tests. Please note: the commit is just importing the source code as it is without adding any SConscript; it is hence unbuildable at the moment. Next commits will integrate the mocking framework into the gem5 build system Change-Id: Iaf05ad91b1964aac7ea37085f839027a8d34ba3e Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/14695 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05testlib: No catch of custom exceptions in sandboxSean Wilson
Custom exceptions are not always properly pickled which could lead to the sandbox test executor to crash when it tries to re __init__ pickled exceptions thrown from the failed test. Change-Id: I4e2ffe5802dda668b5d61c5a16e0989717121a04 Signed-off-by: Sean Wilson <spwilson27@gmail.com> Reviewed-on: https://gem5-review.googlesource.com/12167 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-08-21ext: Cherry-pick pybind change to support GCC 8Jason Lowe-Power
GCC 8's -Wcast-function-type didn't like this line in pybind. Rather than updating pybind to the HEAD, we'll wait for a new release. The last release was in April and didn't include this change. See https://github.com/pybind/pybind11/pull/1396. Change-Id: I199c3023487d5a73a745396df8e7fcd6635a146c Reported-by: Thawra Kadeed <kadeed@ida.ing.tu-bs.de> Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/11909 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2018-08-17tests,ext: Add a new testing library proposalSean Wilson
The new test library is split into two parts: The framework which resides in ext/, and the gem5 helping components in /tests/gem5. Change-Id: Ib4f3ae8d7eb96a7306335a3e739b7e8041aa99b9 Signed-off-by: Sean Wilson <spwilson2@wisc.edu> Reviewed-on: https://gem5-review.googlesource.com/4421 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-06-11misc: Using smart pointers for memory RequestsGiacomo Travaglini
This patch is changing the underlying type for RequestPtr from Request* to shared_ptr<Request>. Having memory requests being managed by smart pointers will simplify the code; it will also prevent memory leakage and dangling pointers. Change-Id: I7749af38a11ac8eb4d53d8df1252951e0890fde3 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/10996 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-03-06scons: Switch from the print statement to the print function.Gabe Black
Starting with version 3, scons imposes using the print function instead of the print statement in code it processes. To get things building again, this change moves all python code within gem5 to use the function version. Another change by another author separately made this same change to the site_tools and site_init.py files. Change-Id: I2de7dc3b1be756baad6f60574c47c8b7e80ea3b0 Reviewed-on: https://gem5-review.googlesource.com/8761 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-01-10style: change C/C++ source permissions to noexecBKP
Several files in the repository were tracked with execute permissions even though the files are just normal C/C++ files (and the one .isa). Change-Id: I976b096acab4a1fc74c5699ef1f9b222c1e635c2 Reviewed-on: https://gem5-review.googlesource.com/7241 Reviewed-by: Gabe Black <gabeblack@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2017-12-14misc: Updates for gcc7.2 for x86Jason Lowe-Power
GCC 7.2 is much stricter than previous GCC versions. The following changes are needed: * There is now a warning if there is an implicit fallthrough between two case statments. C++17 adds the [[fallthrough]]; declaration. However, to support non C++17 standards (i.e., C++11), we use M5_FALLTHROUGH. M5_FALLTHROUGH checks for [[fallthrough]] compliant C++17 compiler and if that doesn't exist, it defaults to nothing (no older compilers generate warnings). * The above resulted in a couple of bugs that were found. This is noted in the review request on gerrit. * throw() for dynamic exception specification is deprecated * There were a couple of new uninitialized variable warnings * Can no longer perform bitwise operations on a bool. * Must now include <functional> for std::function * Compiler bug for void* lambda. Changed to auto as work around. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82878 Change-Id: I5d4c782a4e133fa4cdb119e35d9aff68c6e2958e Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/5802 Reviewed-by: Gabe Black <gabeblack@google.com>
2017-12-14ext: Upgrade PyBind11 to version 2.2.1Jason Lowe-Power
This upgrade is necessary for pybind to build with GCC 7.2. We still need to add the patch for stl.h. MSC_FULL_VER change is no longer needed. See https://gem5-review.googlesource.com/c/public/gem5/+/2230 Change-Id: I806729217d022070583994c2dfcaa74476aef30f Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/5801 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2017-12-04misc: Rename misc.(hh|cc) to logging.(hh|cc)Gabe Black
These files aren't a collection of miscellaneous stuff, they're the definition of the Logger interface, and a few utility macros for calling into that interface (panic, warn, etc.). Change-Id: I84267ac3f45896a83c0ef027f8f19c5e9a5667d1 Reviewed-on: https://gem5-review.googlesource.com/6226 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Gabe Black <gabeblack@google.com>
2017-11-28tests: scons: Integrate the googletest library into the build.Gabe Black
A static library is built using gtest-all.cc and includes the gtest main function from gtest_main.cc. extra libraries to use when linking are included in the main environment variable GTEST_LIBS, and extra CPPFLAGS are in GTEST_CPPFLAGS. The library's path is added to the library search path, and it's headers to the header search path. Change-Id: I2bd6f705bd9fac5db9280996f574b168c11ff8ce Reviewed-on: https://gem5-review.googlesource.com/6083 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2017-11-28tests: Import the googletest library, release version 1.8.0.Gabe Black
Change-Id: Ic6c1391a19238011ff5cc97f513dbdc020dc6144 Reviewed-on: https://gem5-review.googlesource.com/6082 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2017-11-16ext, mem: Pull DRAMPower SHA 90d6290 and rebaseRadhika Jagtap
This patch syncs the DRAMPower library of gem5 to the external github (https://github.com/ravenrd/DRAMPower). The version pulled in is the commit: 90d6290f802c29b3de9e10233ceee22290907ce6 from 30th Oct. 2016. This change also modifies the DRAM Ctrl interaction with the DRAMPower, due to changes in the lib API in the above version. Previously multiple functions were called to prepare the power lib before calling the function that would calculate the enery. With the new API, these functions are encompassed inside the function to calculate the energy and therefore should now be removed from the DRAM controller. The other key difference is the introduction of a new function called calcWindowEnergy which can be useful for any system that wants to do measurements over intervals. For gem5 DRAM ctrl that means we now need to accumulate the window energy measurements into the total stat. Change-Id: I3570fff2805962e166ff2a1a3217ebf2d5a197fb Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/5724 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2017-05-29ext: Revamp the systemc SConscripts.Gabe Black
The existing scripts were including pthread code and QT code at the same time, and also insisting on an having a set of architecture specific source files for whatever the current architecture is. This change selects using either QT or pthreads based on the host architecture, distributes accumulating source files, list source files explicitly (to avoid including redundant coroutine libraries) and makes scons insist on an architecture specific QT implementation only if QT is being used. It also defines a preprocessor symbol which tells some headers whether or not pthreads are being used, and also clones the scons environment to avoid leaking flags into the main environment used to compile gem5 itself. If the host architecture isn't supported by systemc, a warning will be printed, and the various build products and SConscript files will be skipped over. Change-Id: I1a40123a11e49e02922a054f093246cf197087bf Reviewed-on: https://gem5-review.googlesource.com/3461 Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de> Reviewed-by: Christian Menard <christian.menard@tu-dresden.de> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2017-05-22ext: Upgrade PyBind11 to version 2.1.1Andreas Sandberg
Change-Id: I16870dec402d661295f9d013dc23e362b2b2c169 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-on: https://gem5-review.googlesource.com/3225 Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2017-05-18ext: Include SystemC 2.3.1 into gem5Matthias Jung
In the past it happened several times that some changes in gem5 broke the SystemC coupling. Recently Accelera has changed the licence for SystemC from their own licence to Apache2.0, which is compatible with gem5. However, SystemC usually relies on the Boost library, but I was able to exchange the boost calls by c++11 alternatives. The recent SystemC version is placed into /ext and is integrated into gem5's build system. The goal is to integrate some SystemC tests for the CI in some following patches. Change-Id: I4b66ec806b5e3cffc1d7c85d3735ff4fa5b31fd0 Reviewed-on: https://gem5-review.googlesource.com/2240 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2017-05-02ext: Fix undefined macro in pybindAndreas Sandberg
Change-Id: I63a2506d3c028f78cacce8308e2f0e4880531dec Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Andreas Hansson <andreas.hansson@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-on: https://gem5-review.googlesource.com/2230 Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Pierre-Yves Péneau <pierre-yves.peneau@lirmm.fr>
2017-05-02ext: Add pybind rev f4b81b3Andreas Sandberg
Change-Id: I52e4fc9ebf2f59da57d8cf8f3e37cc79598c2f5f Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Andreas Hansson <andreas.hansson@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-on: https://gem5-review.googlesource.com/2229 Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Pierre-Yves Péneau <pierre-yves.peneau@lirmm.fr>
2017-03-01scons: Automatically add a git commit message hookAndreas Sandberg
Gerrit requires that all commit messages have a Change-Id tag. This tag is added automatically by a commit message hook in Git. Include the default Gerrit commit message hook and add it automatically using scons to make life easier for everyone. Change-Id: I1270fbaaadf6ed151bddf14521a38e0c1a02d131 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/2166 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2017-02-10misc: Update #!env calls for python to explicit versionJason Lowe-Power
In some newer Linux distributions, env python default to Python 3.0. This patch explicitly uses "python2" instead of just "python" for all scripts that use #! Reported-by: Sanchayan Maity <maitysanchayan@gmail.com> Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
2016-11-30arch: [Patch 1/5] Added RISC-V base instruction set RV64IAlec Roelke
First of five patches adding RISC-V to GEM5. This patch introduces the base 64-bit ISA (RV64I) in src/arch/riscv for use with syscall emulation. The multiply, floating point, and atomic memory instructions will be added in additional patches, as well as support for more detailed CPU models. The loader is also modified to be able to parse RISC-V ELF files, and a "Hello world\!" example for RISC-V is added to test-progs. Patch 2 will implement the multiply extension, RV64M; patch 3 will implement the floating point (single- and double-precision) extensions, RV64FD; patch 4 will implement the atomic memory instructions, RV64A, and patch 5 will add support for timing, minor, and detailed CPU models that is missing from the first four patches (such as handling locked memory). [Removed several unused parameters and imports from RiscvInterrupts.py, RiscvISA.py, and RiscvSystem.py.] [Fixed copyright information in RISC-V files copied from elsewhere that had ARM licenses attached.] [Reorganized instruction definitions in decoder.isa so that they are sorted by opcode in preparation for the addition of ISA extensions M, A, F, D.] [Fixed formatting of several files, removed some variables and instructions that were missed when moving them to other patches, fixed RISC-V Foundation copyright attribution, and fixed history of files copied from other architectures using hg copy.] [Fixed indentation of switch cases in isa.cc.] [Reorganized syscall descriptions in linux/process.cc to remove large number of repeated unimplemented system calls and added implmementations to functions that have received them since it process.cc was first created.] [Fixed spacing for some copyright attributions.] [Replaced the rest of the file copies using hg copy.] [Fixed style check errors and corrected unaligned memory accesses.] [Fix some minor formatting mistakes.] Signed-off by: Alec Roelke Signed-off by: Jason Lowe-Power <jason@lowepower.com>
2016-11-18ext: Update fputils to rev 13589cdAndreas Sandberg
This patch updates fputils to the latest revision (13589cd) from the upstream repository (github.com/andysan/fputils).
2016-09-20ext: update SST test configCurtis Dunham
Align configuration with new SST change [1] requiring units for memHierarchy's backend.mem_size parameter. [1] https://github.com/sstsimulator/sst-elements/commit/c901abb4e79644ff18f5222c94f5dae012772e1e Change-Id: I19fa09bec8aa453dc52d154598a4ebb20ea304d8
2016-09-02ext: eliminate warnings in SST connectorCurtis Dunham
Now compiles completely clean.
2016-08-24commit 15c633eea52f21dae8cb3a195823b3cdec7be491Curtis Dunham
Author: Curtis Dunham <Curtis.Dunham@arm.com> ext: update SST connector for SST 6.0
2016-07-01ext: Update DRAMPowerMatthias Jung
Sync DRAMPower to external tool This patch syncs the DRAMPower library of gem5 to the external one on github (https://github.com/ravenrd/DRAMPower) of which I am a maintainer. The version used is the commit: 902a00a1797c48a9df97ec88868f20e847680ae6 from 07. May. 2016. Committed by Jason Lowe-Power <jason@lowepower.com>
2016-04-07mem: Remove threadId from memory request classMitch Hayenga
In general, the ThreadID parameter is unnecessary in the memory system as the ContextID is what is used for the purposes of locks/wakeups. Since we allocate sequential ContextIDs for each thread on MT-enabled CPUs, ThreadID is unnecessary as the CPUs can identify the requesting thread through sideband info (SenderState / LSQ entries) or ContextID offset from the base ContextID for a cpu. This is a re-spin of 20264eb after the revert (bd1c6789) and includes some fixes of that commit.
2016-04-06Revert power patch sets with unexpected interactionsAndreas Sandberg
The following patches had unexpected interactions with the current upstream code and have been reverted for now: e07fd01651f3: power: Add support for power models 831c7f2f9e39: power: Low-power idle power state for idle CPUs 4f749e00b667: power: Add power states to ClockedObject Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> --HG-- extra : amend_source : 0b6fb073c6bbc24be533ec431eb51fbf1b269508
2016-04-05mem: Remove threadId from memory request classMitch Hayenga
In general, the ThreadID parameter is unnecessary in the memory system as the ContextID is what is used for the purposes of locks/wakeups. Since we allocate sequential ContextIDs for each thread on MT-enabled CPUs, ThreadID is unnecessary as the CPUs can identify the requesting thread through sideband info (SenderState / LSQ entries) or ContextID offset from the base ContextID for a cpu.
2016-02-04ext: fix SST connectorCurtis Dunham
Should work with SST 5.1 and trunk as of right now.
2016-01-29ext: remove redundant parameter in example SST+gem5 testCurtis Dunham
The SST connector automatically adds --initialize-only to the gem5 "command line" (as it should); the config script doesn't need it.
2016-01-29ext: Update NoMali to external rev f08e0a5Andreas Sandberg
Update NoMali from external revision 9adf9d6 to f08e0a5 and bring in the following changes: f08e0a5 Add support for tracking address space state f11099e Fix job slot register handling when running new jobs b28c98e api: Add a reset callback 29ac4c3 tests: Update gitignore to cover all future test cases 1c6b893 Propagate reset calls to all job slots 8f8ec15 Remove redundant reg vector in MMU 85d90d2 tests: Fix incorrect extern declaration
2016-01-11scons: Enable -Wextra by defaultAndreas Hansson
Make best use of the compiler, and enable -Wextra as well as -Wall. There are a few issues that had to be resolved, but they are all trivial.
2016-01-11ext: Replace gzstream with iostream3 from zlib to avoid LGPLAndreas Hansson
This patch replaces the gzstream zlib wrapper with the iostream3 wrapper provided as part of zlib contributions. The main reason for the switch is to avoid including LGPL in the default gem5 build. iostream3 is provided under a more permissive license: The code is provided "as is", with the permission to use, copy, modify, distribute and sell it for any purpose without fee.
2015-12-08ext: fix SST connectorCurtis Dunham
Writeback no longer a MemCmd.
2015-10-06ext: fix SST connectorCurtis Dunham
The renamings in changesets 8f5993cf (2015-03-23) "mem: rename Locked/LOCKED to LockedRMW/LOCKED_RMW" and fdd4a895 (2015-07-03) "mem: Split WriteInvalidateReq into write and invalidate" broke the SST connector. This commit repeats those renamings in ext/sst.
2015-07-07ext: Add the NoMali GPU no-simulation libraryAndreas Sandberg
Add revision 9adf9d6e2d889a483a92136c96eb8a434d360561 of NoMali-model from https://github.com/ARM-software/nomali-model. This library implements the register interface of the Mali T6xx/T7xx series GPUs, but doesn't do any rendering. It can be used to hide the effects of software rendering.
2015-04-08config: Support full-system with SST's memory systemCurtis Dunham
This patch adds an example configuration in ext/sst/tests/ that allows an SST/gem5 instance to simulate a 4-core AArch64 system with SST's memHierarchy components providing all the caches and memories.
2015-04-08ext: Add SST connectorCurtis Dunham
This patch adds a connector that allows gem5 to be used as a component in SST (Structural Simulation Toolkit, sst-simulator.org). At a high level, this allows memory traffic to pass between the two simulators. SST Links are roughly analogous to gem5 Ports, although Links do not have a notion of master and slave. This distinction is important to gem5, so when connecting a gem5 CPU to an SST cache, an ExternalSlave must be used, and similarly when connecting the memory side of SST cache to a gem5 port (for memory <-> I/O), an ExternalMaster must be used. These connectors handle the administrative aspects of gem5 (initialization, simulation, shutdown) as well as translating SST's MemEvents into gem5 Packets and vice-versa.
2014-10-20ext: Bump DRAMPower to avoid compilation issuesAndreas Hansson
This patch bumps DRAMPower to commit 19433a6897ede4bbb19b06694faa8589b5a6569a which contains a small fix for clang, and a work-around for LTO with gcc 4.6.
2014-10-16ext: Update fputils to rev 6a47fd8358Andreas Sandberg
This patch updates fputils to the latest revision (6a47fd8358) from the upstream repository (github.com/andysan/fputils). Most notably, this includes changes that export a limited set of 64-bit float manipulation and avoids a warning about unused 64-bit floats in clang.
2014-10-11ext: dsent: adds a Python interface, drops C++ oneNilay Vaish
This patch extensively modifies DSENT so that it can be accessed using Python. To access the Python interface, DSENT needs to compiled as a shared library. For this purpose a CMakeLists.txt file has been added. Some of the code that is not required is being removed.
2014-10-11ext: add the source code for DSENTNilay Vaish
This patch adds a tool called DSENT to the ext/ directory. DSENT is a tool that models power and area for on-chip networks. The next patch adds a script for using the tool.
2014-10-09ext: Add DRAMPower to enable on-line DRAM power modellingAndreas Hansson
This patch adds the open-source (BSD 3-clause) tool DRAMPower, commit 8d3cf4bbb10aa202d850ef5e5e3e4f53aa668fa6, to be built as a part of the simulator. We have chosen this specific version of DRAMPower as it provides the necessary functionality, and future updates will be coordinated with the DRAMPower development team. The files added only include the bits needed to build the library, thus excluding all memory specifications, traces, and the stand-alone DRAMPower command-line tool. A future patch includes the DRAMPower functionality in the DRAM controller, to enable on-line DRAM power modelling, and avoid using post-processing of traces.
2014-08-13ext: clang fix for flexible array membersMitch Hayenga
Changes how flexible array members are defined so clang does not error out during compilation.
2014-06-04ext: Add a McPAT regression testerYasuko Eckert
Add a regression tester to McPAT. Joel Hestness wrote these tests and Yasuko Eckert modified them to reflect the new McPAT interface and other changes the previous patch made.
2014-06-03ext: McPAT interface changes and fixesYasuko Eckert
This patch includes software engineering changes and some generic bug fixes Joel Hestness and Yasuko Eckert made to McPAT 0.8. There are still known issues/concernts we did not have a chance to address in this patch. High-level changes in this patch include: 1) Making XML parsing modular and hierarchical: - Shift parsing responsibility into the components - Read XML in a (mostly) context-free recursive manner so that McPAT input files can contain arbitrary component hierarchies 2) Making power, energy, and area calculations a hierarchical and recursive process - Components track their subcomponents and recursively call compute functions in stages - Make C++ object hierarchy reflect inheritance of classes of components with similar structures - Simplify computeArea() and computeEnergy() functions to eliminate successive calls to calculate separate TDP vs. runtime energy - Remove Processor component (now unnecessary) and introduce a more abstract System component 3) Standardizing McPAT output across all components - Use a single, common data structure for storing and printing McPAT output - Recursively call print functions through component hierarchy 4) For caches, allow splitting data array and tag array reads and writes for better accuracy 5) Improving the usability of CACTI by printing more helpful warning and error messages 6) Minor: Impose more rigorous code style for clarity (more work still to be done) Overall, these changes greatly reduce the amount of replicated code, and they improve McPAT runtime and decrease memory footprint.
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