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Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
# -*- mode:python -*-
# Copyright (c) 2006 The Regents of The University of Michigan
# All rights reserved.
#
# 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: Nathan Binkert
Import('*')
Clock: Move the clock and related functions to ClockedObject This patch moves the clock of the CPU, bus, and numerous devices to the new class ClockedObject, that sits in between the SimObject and MemObject in the class hierarchy. Although there are currently a fair amount of MemObjects that do not make use of the clock, they potentially should do so, e.g. the caches should at some point have the same clock as the CPU, potentially with a 1:n ratio. This patch does not introduce any new clock objects or object hierarchies (clusters, clock domains etc), but is still a step in the direction of having a more structured approach clock domains. The most contentious part of this patch is the serialisation of clocks that some of the modules (but not all) did previously. This serialisation should not be needed as the clock is set through the parameters even when restoring from the checkpoint. In other words, the state is "stored" in the Python code that creates the modules. The nextCycle methods are also simplified and the clock phase parameter of the CPU is removed (this could be part of a clock object once they are introduced).
2012-08-21 11:49:01 +02:00
SimObject('ClockedObject.py')
cpu: `Minor' in-order CPU model 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
2014-07-23 23:09:04 +02:00
SimObject('TickedObject.py')
Move SimObject python files alongside the C++ and fix the SConscript files so that only the objects that are actually available in a given build are compiled in. Remove a bunch of files that aren't used anymore. --HG-- rename : src/python/m5/objects/AlphaTLB.py => src/arch/alpha/AlphaTLB.py rename : src/python/m5/objects/SparcTLB.py => src/arch/sparc/SparcTLB.py rename : src/python/m5/objects/BaseCPU.py => src/cpu/BaseCPU.py rename : src/python/m5/objects/FuncUnit.py => src/cpu/FuncUnit.py rename : src/python/m5/objects/IntrControl.py => src/cpu/IntrControl.py rename : src/python/m5/objects/MemTest.py => src/cpu/memtest/MemTest.py rename : src/python/m5/objects/FUPool.py => src/cpu/o3/FUPool.py rename : src/python/m5/objects/FuncUnitConfig.py => src/cpu/o3/FuncUnitConfig.py rename : src/python/m5/objects/O3CPU.py => src/cpu/o3/O3CPU.py rename : src/python/m5/objects/OzoneCPU.py => src/cpu/ozone/OzoneCPU.py rename : src/python/m5/objects/SimpleOzoneCPU.py => src/cpu/ozone/SimpleOzoneCPU.py rename : src/python/m5/objects/BadDevice.py => src/dev/BadDevice.py rename : src/python/m5/objects/Device.py => src/dev/Device.py rename : src/python/m5/objects/DiskImage.py => src/dev/DiskImage.py rename : src/python/m5/objects/Ethernet.py => src/dev/Ethernet.py rename : src/python/m5/objects/Ide.py => src/dev/Ide.py rename : src/python/m5/objects/Pci.py => src/dev/Pci.py rename : src/python/m5/objects/Platform.py => src/dev/Platform.py rename : src/python/m5/objects/SimConsole.py => src/dev/SimConsole.py rename : src/python/m5/objects/SimpleDisk.py => src/dev/SimpleDisk.py rename : src/python/m5/objects/Uart.py => src/dev/Uart.py rename : src/python/m5/objects/AlphaConsole.py => src/dev/alpha/AlphaConsole.py rename : src/python/m5/objects/Tsunami.py => src/dev/alpha/Tsunami.py rename : src/python/m5/objects/T1000.py => src/dev/sparc/T1000.py rename : src/python/m5/objects/Bridge.py => src/mem/Bridge.py rename : src/python/m5/objects/Bus.py => src/mem/Bus.py rename : src/python/m5/objects/MemObject.py => src/mem/MemObject.py rename : src/python/m5/objects/PhysicalMemory.py => src/mem/PhysicalMemory.py rename : src/python/m5/objects/BaseCache.py => src/mem/cache/BaseCache.py rename : src/python/m5/objects/CoherenceProtocol.py => src/mem/cache/coherence/CoherenceProtocol.py rename : src/python/m5/objects/Repl.py => src/mem/cache/tags/Repl.py rename : src/python/m5/objects/Process.py => src/sim/Process.py rename : src/python/m5/objects/Root.py => src/sim/Root.py rename : src/python/m5/objects/System.py => src/sim/System.py extra : convert_revision : 173f8764bafa8ef899198438fa5573874e407321
2007-05-28 04:21:17 +02:00
SimObject('Root.py')
sim: Add the notion of clock domains to all ClockedObjects This patch adds the notion of source- and derived-clock domains to the ClockedObjects. As such, all clock information is moved to the clock domain, and the ClockedObjects are grouped into domains. The clock domains are either source domains, with a specific clock period, or derived domains that have a parent domain and a divider (potentially chained). For piece of logic that runs at a derived clock (a ratio of the clock its parent is running at) the necessary derived clock domain is created from its corresponding parent clock domain. For now, the derived clock domain only supports a divider, thus ensuring a lower speed compared to its parent. Multiplier functionality implies a PLL logic that has not been modelled yet (create a separate clock instead). The clock domains should be used as a mechanism to provide a controllable clock source that affects clock for every clocked object lying beneath it. The clock of the domain can (in a future patch) be controlled by a handler responsible for dynamic frequency scaling of the respective clock domains. All the config scripts have been retro-fitted with clock domains. For the System a default SrcClockDomain is created. For CPUs that run at a different speed than the system, there is a seperate clock domain created. This domain incorporates the CPU and the associated caches. As before, Ruby runs under its own clock domain. The clock period of all domains are pre-computed, such that no virtual functions or multiplications are needed when calling clockPeriod. Instead, the clock period is pre-computed when any changes occur. For this to be possible, each clock domain tracks its children.
2013-06-27 11:49:49 +02:00
SimObject('ClockDomain.py')
power: Add voltage domains to the clock domains This patch adds the notion of voltage domains, and groups clock domains that operate under the same voltage (i.e. power supply) into domains. Each clock domain is required to be associated with a voltage domain, and the latter requires the voltage to be explicitly set. A voltage domain is an independently controllable voltage supply being provided to section of the design. Thus, if you wish to perform dynamic voltage scaling on a CPU, its clock domain should be associated with a separate voltage domain. The current implementation of the voltage domain does not take into consideration cases where there are derived voltage domains running at ratio of native voltage domains, as with the case where there can be on-chip buck/boost (charge pumps) voltage regulation logic. The regression and configuration scripts are updated with a generic voltage domain for the system, and one for the CPUs.
2013-08-19 09:52:28 +02:00
SimObject('VoltageDomain.py')
arch: Resurrect the NOISA build target and rename it NULL This patch makes it possible to once again build gem5 without any ISA. The main purpose is to enable work around the interconnect and memory system without having to build any CPU models or device models. The regress script is updated to include the NULL ISA target. Currently no regressions make use of it, but all the testers could (and perhaps should) transition to it. --HG-- rename : build_opts/NOISA => build_opts/NULL rename : src/arch/noisa/SConsopts => src/arch/null/SConsopts rename : src/arch/noisa/cpu_dummy.hh => src/arch/null/cpu_dummy.hh rename : src/cpu/intr_control.cc => src/cpu/intr_control_noisa.cc
2013-09-04 19:22:57 +02:00
SimObject('System.py')
power: Add basic DVFS support for gem5 Adds DVFS capabilities to gem5, by allowing users to specify lists for frequencies and voltages in SrcClockDomains and VoltageDomains respectively. A separate component, DVFSHandler, provides a small interface to change operating points of the associated domains. Clock domains will be linked to voltage domains and thus allow separate clock, but shared voltage lines. Currently all the valid performance-level updates are performed with a fixed transition latency as specified for the domain. Config file example: ... vd = VoltageDomain(voltage = ['1V','0.95V','0.90V','0.85V']) tsys.cluster1.clk_domain.clock = ['1GHz','700MHz','400MHz','230MHz'] tsys.cluster2.clk_domain.clock = ['1GHz','700MHz','400MHz','230MHz'] tsys.cluster1.clk_domain.domain_id = 0 tsys.cluster2.clk_domain.domain_id = 1 tsys.cluster1.clk_domain.voltage_domain = vd tsys.cluster2.clk_domain.voltage_domain = vd tsys.dvfs_handler.domains = [tsys.cluster1.clk_domain, tsys.cluster2.clk_domain] tsys.dvfs_handler.enable = True
2014-06-30 19:56:06 +02:00
SimObject('DVFSHandler.py')
config: Add SubSystem container for simobjects This patch adds the SubSystem container for grouping simobjects together in logical subsystems to facilitate building a larger system from constituent parts. The container is simply a non-abstract empty simobject to hold the components that will be connected as its children. In simulation the object does not participate, its only use is during configuration of the system.
2014-08-10 11:39:16 +02:00
SimObject('SubSystem.py')
Move SimObject python files alongside the C++ and fix the SConscript files so that only the objects that are actually available in a given build are compiled in. Remove a bunch of files that aren't used anymore. --HG-- rename : src/python/m5/objects/AlphaTLB.py => src/arch/alpha/AlphaTLB.py rename : src/python/m5/objects/SparcTLB.py => src/arch/sparc/SparcTLB.py rename : src/python/m5/objects/BaseCPU.py => src/cpu/BaseCPU.py rename : src/python/m5/objects/FuncUnit.py => src/cpu/FuncUnit.py rename : src/python/m5/objects/IntrControl.py => src/cpu/IntrControl.py rename : src/python/m5/objects/MemTest.py => src/cpu/memtest/MemTest.py rename : src/python/m5/objects/FUPool.py => src/cpu/o3/FUPool.py rename : src/python/m5/objects/FuncUnitConfig.py => src/cpu/o3/FuncUnitConfig.py rename : src/python/m5/objects/O3CPU.py => src/cpu/o3/O3CPU.py rename : src/python/m5/objects/OzoneCPU.py => src/cpu/ozone/OzoneCPU.py rename : src/python/m5/objects/SimpleOzoneCPU.py => src/cpu/ozone/SimpleOzoneCPU.py rename : src/python/m5/objects/BadDevice.py => src/dev/BadDevice.py rename : src/python/m5/objects/Device.py => src/dev/Device.py rename : src/python/m5/objects/DiskImage.py => src/dev/DiskImage.py rename : src/python/m5/objects/Ethernet.py => src/dev/Ethernet.py rename : src/python/m5/objects/Ide.py => src/dev/Ide.py rename : src/python/m5/objects/Pci.py => src/dev/Pci.py rename : src/python/m5/objects/Platform.py => src/dev/Platform.py rename : src/python/m5/objects/SimConsole.py => src/dev/SimConsole.py rename : src/python/m5/objects/SimpleDisk.py => src/dev/SimpleDisk.py rename : src/python/m5/objects/Uart.py => src/dev/Uart.py rename : src/python/m5/objects/AlphaConsole.py => src/dev/alpha/AlphaConsole.py rename : src/python/m5/objects/Tsunami.py => src/dev/alpha/Tsunami.py rename : src/python/m5/objects/T1000.py => src/dev/sparc/T1000.py rename : src/python/m5/objects/Bridge.py => src/mem/Bridge.py rename : src/python/m5/objects/Bus.py => src/mem/Bus.py rename : src/python/m5/objects/MemObject.py => src/mem/MemObject.py rename : src/python/m5/objects/PhysicalMemory.py => src/mem/PhysicalMemory.py rename : src/python/m5/objects/BaseCache.py => src/mem/cache/BaseCache.py rename : src/python/m5/objects/CoherenceProtocol.py => src/mem/cache/coherence/CoherenceProtocol.py rename : src/python/m5/objects/Repl.py => src/mem/cache/tags/Repl.py rename : src/python/m5/objects/Process.py => src/sim/Process.py rename : src/python/m5/objects/Root.py => src/sim/Root.py rename : src/python/m5/objects/System.py => src/sim/System.py extra : convert_revision : 173f8764bafa8ef899198438fa5573874e407321
2007-05-28 04:21:17 +02:00
SE/FS: Compile in system events in SE mode.
2011-10-31 01:38:11 +01:00
Source('arguments.cc')
Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
Source('async.cc')
sim: Add support for generating back traces on errors Add functionality to generate a back trace if gem5 crashes (SIGABRT or SIGSEGV). The current implementation uses glibc's stack traversal support if available and stubs out the call to print_backtrace() otherwise.
2015-12-04 01:12:58 +01:00
Source('backtrace_%s.cc' % env['BACKTRACE_IMPL'])
Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
Source('core.cc')
sim: tag-based checkpoint versioning This commit addresses gem5 checkpoints' linear versioning bottleneck. Since development is distributed across many private trees, there exists a sort of 'race' for checkpoint version numbers: internally a checkpoint version may be used but then resynchronizing with the external tree causes a conflict on that version. This change replaces the linear version number with a set of unique strings called tags. Now the only conflicts that can arise are of tag names, where collisions are much easier to avoid. The checkpoint upgrader (util/cpt_upgrader.py) upgrades the version representation, as one would expect. Each tag version implements its upgrader code in a python file in the util/cpt_upgraders directory rather than adding a function to the upgrader script itself. The version tags are stored in the 'Globals' section rather than 'root' (as the version was previously) because 'Globals' gets unserialized first and can provide a warning before any other unserialization errors can occur.
2015-09-02 22:23:30 +02:00
Source('tags.cc')
config: Add the ability to read a config file using C++ and Python This patch adds the ability to load in config.ini files generated from gem5 into another instance of gem5 built without Python configuration support. The intended use case is for configuring gem5 when it is a library embedded in another simulation system. A parallel config file reader is also provided purely in Python to demonstrate the approach taken and to provided similar functionality for as-yet-unknown use models. The Python configuration file reader can read both .ini and .json files. C++ configuration file reading: A command line option has been added for scons to enable C++ configuration file reading: --with-cxx-config There is an example in util/cxx_config that shows C++ configuration in action. util/cxx_config/README explains how to build the example. Configuration is achieved by the object CxxConfigManager. It handles reading object descriptions from a CxxConfigFileBase object which wraps a config file reader. The wrapper class CxxIniFile is provided which wraps an IniFile for reading .ini files. Reading .json files from C++ would be possible with a similar wrapper and a JSON parser. After reading object descriptions, CxxConfigManager creates SimObjectParam-derived objects from the classes in the (generated with this patch) directory build/ARCH/cxx_config CxxConfigManager can then build SimObjects from those SimObjectParams (in an order dictated by the SimObject-value parameters on other objects) and bind ports of the produced SimObjects. A minimal set of instantiate-replacing member functions are provided by CxxConfigManager and few of the member functions of SimObject (such as drain) are extended onto CxxConfigManager. Python configuration file reading (configs/example/read_config.py): A Python version of the reader is also supplied with a similar interface to CxxConfigFileBase (In Python: ConfigFile) to config file readers. The Python config file reading will handle both .ini and .json files. The object construction strategy is slightly different in Python from the C++ reader as you need to avoid objects prematurely becoming the children of other objects when setting parameters. Port binding also needs to be strictly in the same port-index order as the original instantiation.
2014-10-16 11:49:37 +02:00
Source('cxx_config.cc')
Source('cxx_manager.cc')
Source('cxx_config_ini.cc')
Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
Source('debug.cc')
config: Add a --without-python option to build process Add the ability to build libgem5 without embedded Python or the ability to configure with Python. This is a prelude to a patch to allow config.ini files to be loaded into libgem5 using only C++ which would make embedding gem5 within other simulation systems easier. This adds a few registration interfaces to things which cross between Python and C++. Namely: stats dumping and SimObject resolving
2014-10-16 11:49:32 +02:00
Source('py_interact.cc', skip_no_python=True)
Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
Source('eventq.cc')
sim: simulate with multiple threads and event queues This patch adds support for simulating with multiple threads, each of which operates on an event queue. Each sim object specifies which eventq is would like to be on. A custom barrier implementation is being added using which eventqs synchronize. The patch was tested in two different configurations: 1. ruby_network_test.py: in this simulation L1 cache controllers receive requests from the cpu. The requests are replied to immediately without any communication taking place with any other level. 2. twosys-tsunami-simple-atomic: this configuration simulates a client-server system which are connected by an ethernet link. We still lack the ability to communicate using message buffers or ports. But other things like simulation start and end, synchronizing after every quantum are working. Committed by: Nilay Vaish
2013-11-25 18:21:00 +01:00
Source('global_event.cc')
config: Add a --without-python option to build process Add the ability to build libgem5 without embedded Python or the ability to configure with Python. This is a prelude to a patch to allow config.ini files to be loaded into libgem5 using only C++ which would make embedding gem5 within other simulation systems easier. This adds a few registration interfaces to things which cross between Python and C++. Namely: stats dumping and SimObject resolving
2014-10-16 11:49:32 +02:00
Source('init.cc', skip_no_python=True)
Source('init_signals.cc')
scons: make a flexible system for guarding source files This is similar to guards on mercurial queues and they're used for selecting which files are compiled into some given object. We already do something similar, but it's mostly hard coded for the m5 binary and the m5 library and I'd like to make it more flexible to better support the unittests
2011-04-15 19:44:44 +02:00
Source('main.cc', main=True, skip_lib=True)
Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
Source('root.cc')
Source('serialize.cc')
sim: Move the draining interface into a separate base class This patch moves the draining interface from SimObject to a separate class that can be used by any object needing draining. However, objects not visible to the Python code (i.e., objects not deriving from SimObject) still depend on their parents informing them when to drain. This patch also gets rid of the CountedDrainEvent (which isn't really an event) and replaces it with a DrainManager.
2012-11-02 17:32:01 +01:00
Source('drain.cc')
Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
Source('sim_events.cc')
Source('sim_object.cc')
config: Add SubSystem container for simobjects This patch adds the SubSystem container for grouping simobjects together in logical subsystems to facilitate building a larger system from constituent parts. The container is simply a non-abstract empty simobject to hold the components that will be connected as its children. In simulation the object does not participate, its only use is during configuration of the system.
2014-08-10 11:39:16 +02:00
Source('sub_system.cc')
cpu: `Minor' in-order CPU model 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
2014-07-23 23:09:04 +02:00
Source('ticked_object.cc')
Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
Source('simulate.cc')
Source('stat_control.cc')
config: Add a --without-python option to build process Add the ability to build libgem5 without embedded Python or the ability to configure with Python. This is a prelude to a patch to allow config.ini files to be loaded into libgem5 using only C++ which would make embedding gem5 within other simulation systems easier. This adds a few registration interfaces to things which cross between Python and C++. Namely: stats dumping and SimObject resolving
2014-10-16 11:49:32 +02:00
Source('stat_register.cc', skip_no_python=True)
sim: Add the notion of clock domains to all ClockedObjects This patch adds the notion of source- and derived-clock domains to the ClockedObjects. As such, all clock information is moved to the clock domain, and the ClockedObjects are grouped into domains. The clock domains are either source domains, with a specific clock period, or derived domains that have a parent domain and a divider (potentially chained). For piece of logic that runs at a derived clock (a ratio of the clock its parent is running at) the necessary derived clock domain is created from its corresponding parent clock domain. For now, the derived clock domain only supports a divider, thus ensuring a lower speed compared to its parent. Multiplier functionality implies a PLL logic that has not been modelled yet (create a separate clock instead). The clock domains should be used as a mechanism to provide a controllable clock source that affects clock for every clocked object lying beneath it. The clock of the domain can (in a future patch) be controlled by a handler responsible for dynamic frequency scaling of the respective clock domains. All the config scripts have been retro-fitted with clock domains. For the System a default SrcClockDomain is created. For CPUs that run at a different speed than the system, there is a seperate clock domain created. This domain incorporates the CPU and the associated caches. As before, Ruby runs under its own clock domain. The clock period of all domains are pre-computed, such that no virtual functions or multiplications are needed when calling clockPeriod. Instead, the clock period is pre-computed when any changes occur. For this to be possible, each clock domain tracks its children.
2013-06-27 11:49:49 +02:00
Source('clock_domain.cc')
power: Add voltage domains to the clock domains This patch adds the notion of voltage domains, and groups clock domains that operate under the same voltage (i.e. power supply) into domains. Each clock domain is required to be associated with a voltage domain, and the latter requires the voltage to be explicitly set. A voltage domain is an independently controllable voltage supply being provided to section of the design. Thus, if you wish to perform dynamic voltage scaling on a CPU, its clock domain should be associated with a separate voltage domain. The current implementation of the voltage domain does not take into consideration cases where there are derived voltage domains running at ratio of native voltage domains, as with the case where there can be on-chip buck/boost (charge pumps) voltage regulation logic. The regression and configuration scripts are updated with a generic voltage domain for the system, and one for the CPUs.
2013-08-19 09:52:28 +02:00
Source('voltage_domain.cc')
sim: Adding thermal model support This patch adds basic thermal support to gem5. It models energy dissipation through a circuital equivalent, which allows us to use RC networks. This lays down the basic infrastructure to do so, but it does not "work" due to the lack of power models. For now some hardcoded number is used as a PoC. The solver is embedded in the patch.
2015-05-12 11:26:47 +02:00
Source('linear_solver.cc')
arch: Resurrect the NOISA build target and rename it NULL This patch makes it possible to once again build gem5 without any ISA. The main purpose is to enable work around the interconnect and memory system without having to build any CPU models or device models. The regress script is updated to include the NULL ISA target. Currently no regressions make use of it, but all the testers could (and perhaps should) transition to it. --HG-- rename : build_opts/NOISA => build_opts/NULL rename : src/arch/noisa/SConsopts => src/arch/null/SConsopts rename : src/arch/noisa/cpu_dummy.hh => src/arch/null/cpu_dummy.hh rename : src/cpu/intr_control.cc => src/cpu/intr_control_noisa.cc
2013-09-04 19:22:57 +02:00
Source('system.cc')
power: Add basic DVFS support for gem5 Adds DVFS capabilities to gem5, by allowing users to specify lists for frequencies and voltages in SrcClockDomains and VoltageDomains respectively. A separate component, DVFSHandler, provides a small interface to change operating points of the associated domains. Clock domains will be linked to voltage domains and thus allow separate clock, but shared voltage lines. Currently all the valid performance-level updates are performed with a fixed transition latency as specified for the domain. Config file example: ... vd = VoltageDomain(voltage = ['1V','0.95V','0.90V','0.85V']) tsys.cluster1.clk_domain.clock = ['1GHz','700MHz','400MHz','230MHz'] tsys.cluster2.clk_domain.clock = ['1GHz','700MHz','400MHz','230MHz'] tsys.cluster1.clk_domain.domain_id = 0 tsys.cluster2.clk_domain.domain_id = 1 tsys.cluster1.clk_domain.voltage_domain = vd tsys.cluster2.clk_domain.voltage_domain = vd tsys.dvfs_handler.domains = [tsys.cluster1.clk_domain, tsys.cluster2.clk_domain] tsys.dvfs_handler.enable = True
2014-06-30 19:56:06 +02:00
Source('dvfs_handler.cc')
pwr: Add power states to ClockedObject Add 4 power states to the ClockedObject, provides necessary access functions to check and update the power state. Default power state is UNDEFINED, it is responsibility of the respective simulation model to provide the startup state and any other logic for state change. Add number of transition stat. Add distribution of time spent in clock gated state. Add power state residency stat. Add dump call back function to allow stats update of distribution and residency stats. Change-Id: Id086090a2ed720c9fcb37812a3c98f0f724907c6
2016-06-06 18:16:43 +02:00
Source('clocked_object.cc')
sim: Adding support for power models This patch adds some basic support for power models in gem5. The power interface is defined so it can interact with thermal models as well. It implements a simple power evaluator that can be used for simple power models that express power in the form of a math expression. These expressions can use stats within the same SimObject (or down its hierarchy) and some magic variables such as "temp" for temperature. In future patches we will extend this functionality to allow slightly more complex expressions. The model allows it to be extended to use other kinds of models. Change-Id: I76752f9638b6815e229fd74cdcb7721a305cbc4b
2016-06-06 18:16:44 +02:00
Source('mathexpr.cc')
SCons: Support building without an ISA
2010-11-20 01:00:39 +01:00
arch: Resurrect the NOISA build target and rename it NULL This patch makes it possible to once again build gem5 without any ISA. The main purpose is to enable work around the interconnect and memory system without having to build any CPU models or device models. The regress script is updated to include the NULL ISA target. Currently no regressions make use of it, but all the testers could (and perhaps should) transition to it. --HG-- rename : build_opts/NOISA => build_opts/NULL rename : src/arch/noisa/SConsopts => src/arch/null/SConsopts rename : src/arch/noisa/cpu_dummy.hh => src/arch/null/cpu_dummy.hh rename : src/cpu/intr_control.cc => src/cpu/intr_control_noisa.cc
2013-09-04 19:22:57 +02:00
if env['TARGET_ISA'] != 'null':
SimObject('InstTracer.py')
SE/FS: Build the base process class in FS.
2011-10-30 08:32:54 +01:00
SimObject('Process.py')
syscall_emul: [patch 8/22] refactor process class Moves aux_vector into its own .hh and .cc files just to get it out of the already crowded Process files. Arguably, it could stay there, but it's probably better just to move it and give it files. The changeset looks ugly around the Process header file, but the goal here is to move methods and members around so that they're not defined randomly throughout the entire header file. I expect this is likely one of the reasons why I several unused variables related to this class. So, the methods are declared first followed by members. I've tried to aggregate them together so that similar entries reside near one another. There are other changes coming to this code so this is by no means the final product.
2016-11-09 21:27:41 +01:00
Source('aux_vector.cc')
SCons: Support building without an ISA
2010-11-20 01:00:39 +01:00
Source('faults.cc')
SE/FS: Build the base process class in FS.
2011-10-30 08:32:54 +01:00
Source('process.cc')
base: refactor process class (specifically FdMap and friends) This patch extends the previous patch's alterations around fd_map. It cleans up some of the uglier code in the process file and replaces it with a more concise C++11 version. As part of the changes, the FdMap class is pulled out of the Process class and receives its own file.
2015-07-24 21:25:22 +02:00
Source('fd_entry.cc')
SCons: Support building without an ISA
2010-11-20 01:00:39 +01:00
Source('pseudo_inst.cc')
arch: Resurrect the NOISA build target and rename it NULL This patch makes it possible to once again build gem5 without any ISA. The main purpose is to enable work around the interconnect and memory system without having to build any CPU models or device models. The regress script is updated to include the NULL ISA target. Currently no regressions make use of it, but all the testers could (and perhaps should) transition to it. --HG-- rename : build_opts/NOISA => build_opts/NULL rename : src/arch/noisa/SConsopts => src/arch/null/SConsopts rename : src/arch/noisa/cpu_dummy.hh => src/arch/null/cpu_dummy.hh rename : src/cpu/intr_control.cc => src/cpu/intr_control_noisa.cc
2013-09-04 19:22:57 +02:00
Source('syscall_emul.cc')
syscall_emul: [patch 2/22] move SyscallDesc into its own .hh and .cc The class was crammed into syscall_emul.hh which has tons of forward declarations and template definitions. To clean it up a bit, moved the class into separate files and commented the class with doxygen style comments. Also, provided some encapsulation by adding some accessors and a mutator. The syscallreturn.hh file was renamed syscall_return.hh to make it consistent with other similarly named files in the src/sim directory. The DPRINTF_SYSCALL macro was moved into its own header file with the include the Base and Verbose flags as well. --HG-- rename : src/sim/syscallreturn.hh => src/sim/syscall_return.hh
2016-11-09 21:27:40 +01:00
Source('syscall_desc.cc')
Move SimObject python files alongside the C++ and fix the SConscript files so that only the objects that are actually available in a given build are compiled in. Remove a bunch of files that aren't used anymore. --HG-- rename : src/python/m5/objects/AlphaTLB.py => src/arch/alpha/AlphaTLB.py rename : src/python/m5/objects/SparcTLB.py => src/arch/sparc/SparcTLB.py rename : src/python/m5/objects/BaseCPU.py => src/cpu/BaseCPU.py rename : src/python/m5/objects/FuncUnit.py => src/cpu/FuncUnit.py rename : src/python/m5/objects/IntrControl.py => src/cpu/IntrControl.py rename : src/python/m5/objects/MemTest.py => src/cpu/memtest/MemTest.py rename : src/python/m5/objects/FUPool.py => src/cpu/o3/FUPool.py rename : src/python/m5/objects/FuncUnitConfig.py => src/cpu/o3/FuncUnitConfig.py rename : src/python/m5/objects/O3CPU.py => src/cpu/o3/O3CPU.py rename : src/python/m5/objects/OzoneCPU.py => src/cpu/ozone/OzoneCPU.py rename : src/python/m5/objects/SimpleOzoneCPU.py => src/cpu/ozone/SimpleOzoneCPU.py rename : src/python/m5/objects/BadDevice.py => src/dev/BadDevice.py rename : src/python/m5/objects/Device.py => src/dev/Device.py rename : src/python/m5/objects/DiskImage.py => src/dev/DiskImage.py rename : src/python/m5/objects/Ethernet.py => src/dev/Ethernet.py rename : src/python/m5/objects/Ide.py => src/dev/Ide.py rename : src/python/m5/objects/Pci.py => src/dev/Pci.py rename : src/python/m5/objects/Platform.py => src/dev/Platform.py rename : src/python/m5/objects/SimConsole.py => src/dev/SimConsole.py rename : src/python/m5/objects/SimpleDisk.py => src/dev/SimpleDisk.py rename : src/python/m5/objects/Uart.py => src/dev/Uart.py rename : src/python/m5/objects/AlphaConsole.py => src/dev/alpha/AlphaConsole.py rename : src/python/m5/objects/Tsunami.py => src/dev/alpha/Tsunami.py rename : src/python/m5/objects/T1000.py => src/dev/sparc/T1000.py rename : src/python/m5/objects/Bridge.py => src/mem/Bridge.py rename : src/python/m5/objects/Bus.py => src/mem/Bus.py rename : src/python/m5/objects/MemObject.py => src/mem/MemObject.py rename : src/python/m5/objects/PhysicalMemory.py => src/mem/PhysicalMemory.py rename : src/python/m5/objects/BaseCache.py => src/mem/cache/BaseCache.py rename : src/python/m5/objects/CoherenceProtocol.py => src/mem/cache/coherence/CoherenceProtocol.py rename : src/python/m5/objects/Repl.py => src/mem/cache/tags/Repl.py rename : src/python/m5/objects/Process.py => src/sim/Process.py rename : src/python/m5/objects/Root.py => src/sim/Root.py rename : src/python/m5/objects/System.py => src/sim/System.py extra : convert_revision : 173f8764bafa8ef899198438fa5573874e407321
2007-05-28 04:21:17 +02:00
style: [patch 3/22] reduce include dependencies in some headers Used cppclean to help identify useless includes and removed them. This involved erroneously included headers, but also cases where forward declarations could have been used rather than a full include.
2016-11-09 21:27:40 +01:00
if env['TARGET_ISA'] != 'x86':
Source('microcode_rom.cc')
scons: rename TraceFlags to DebugFlags
2011-06-03 02:36:21 +02:00
DebugFlag('Checkpoint')
DebugFlag('Config')
config: Add the ability to read a config file using C++ and Python This patch adds the ability to load in config.ini files generated from gem5 into another instance of gem5 built without Python configuration support. The intended use case is for configuring gem5 when it is a library embedded in another simulation system. A parallel config file reader is also provided purely in Python to demonstrate the approach taken and to provided similar functionality for as-yet-unknown use models. The Python configuration file reader can read both .ini and .json files. C++ configuration file reading: A command line option has been added for scons to enable C++ configuration file reading: --with-cxx-config There is an example in util/cxx_config that shows C++ configuration in action. util/cxx_config/README explains how to build the example. Configuration is achieved by the object CxxConfigManager. It handles reading object descriptions from a CxxConfigFileBase object which wraps a config file reader. The wrapper class CxxIniFile is provided which wraps an IniFile for reading .ini files. Reading .json files from C++ would be possible with a similar wrapper and a JSON parser. After reading object descriptions, CxxConfigManager creates SimObjectParam-derived objects from the classes in the (generated with this patch) directory build/ARCH/cxx_config CxxConfigManager can then build SimObjects from those SimObjectParams (in an order dictated by the SimObject-value parameters on other objects) and bind ports of the produced SimObjects. A minimal set of instantiate-replacing member functions are provided by CxxConfigManager and few of the member functions of SimObject (such as drain) are extended onto CxxConfigManager. Python configuration file reading (configs/example/read_config.py): A Python version of the reader is also supplied with a similar interface to CxxConfigFileBase (In Python: ConfigFile) to config file readers. The Python config file reading will handle both .ini and .json files. The object construction strategy is slightly different in Python from the C++ reader as you need to avoid objects prematurely becoming the children of other objects when setting parameters. Port binding also needs to be strictly in the same port-index order as the original instantiation.
2014-10-16 11:49:37 +02:00
DebugFlag('CxxConfig')
O3,ARM: fix some problems with drain/switchout functionality and add Drain DPRINTFs This patch fixes some problems with the drain/switchout functionality for the O3 cpu and for the ARM ISA and adds some useful debug print statements. This is an incremental fix as there are still a few bugs/mem leaks with the switchout code. Particularly when switching from an O3CPU to a TimingSimpleCPU. However, when switching from O3 to O3 cores with the ARM ISA I haven't encountered any more assertion failures; now the kernel will typically panic inside of simulation.
2012-08-15 16:38:08 +02:00
DebugFlag('Drain')
scons: rename TraceFlags to DebugFlags
2011-06-03 02:36:21 +02:00
DebugFlag('Event')
DebugFlag('Fault')
DebugFlag('Flow')
DebugFlag('IPI')
DebugFlag('IPR')
DebugFlag('Interrupt')
DebugFlag('Loader')
sim: Add debug output when executing pseudo-instructions
2013-06-03 13:21:21 +02:00
DebugFlag('PseudoInst')
scons: rename TraceFlags to DebugFlags
2011-06-03 02:36:21 +02:00
DebugFlag('Stack')
syscall_emul: add extra debug support for syscalls Breaks the debug output from system calls into two levels: Base and Verbose. A macro is added specifically for system calls which allows developers to easily add new debug messages in a consistent manner. The macro also contains a field to print thread IDs along with the CPU ID.
2016-03-17 18:22:39 +01:00
DebugFlag('SyscallBase')
scons: rename TraceFlags to DebugFlags
2011-06-03 02:36:21 +02:00
DebugFlag('SyscallVerbose')
DebugFlag('TimeSync')
DebugFlag('Thread')
DebugFlag('Timer')
DebugFlag('VtoPhys')
DebugFlag('WorkItems')
sim: Add the notion of clock domains to all ClockedObjects This patch adds the notion of source- and derived-clock domains to the ClockedObjects. As such, all clock information is moved to the clock domain, and the ClockedObjects are grouped into domains. The clock domains are either source domains, with a specific clock period, or derived domains that have a parent domain and a divider (potentially chained). For piece of logic that runs at a derived clock (a ratio of the clock its parent is running at) the necessary derived clock domain is created from its corresponding parent clock domain. For now, the derived clock domain only supports a divider, thus ensuring a lower speed compared to its parent. Multiplier functionality implies a PLL logic that has not been modelled yet (create a separate clock instead). The clock domains should be used as a mechanism to provide a controllable clock source that affects clock for every clocked object lying beneath it. The clock of the domain can (in a future patch) be controlled by a handler responsible for dynamic frequency scaling of the respective clock domains. All the config scripts have been retro-fitted with clock domains. For the System a default SrcClockDomain is created. For CPUs that run at a different speed than the system, there is a seperate clock domain created. This domain incorporates the CPU and the associated caches. As before, Ruby runs under its own clock domain. The clock period of all domains are pre-computed, such that no virtual functions or multiplications are needed when calling clockPeriod. Instead, the clock period is pre-computed when any changes occur. For this to be possible, each clock domain tracks its children.
2013-06-27 11:49:49 +02:00
DebugFlag('ClockDomain')
power: Add voltage domains to the clock domains This patch adds the notion of voltage domains, and groups clock domains that operate under the same voltage (i.e. power supply) into domains. Each clock domain is required to be associated with a voltage domain, and the latter requires the voltage to be explicitly set. A voltage domain is an independently controllable voltage supply being provided to section of the design. Thus, if you wish to perform dynamic voltage scaling on a CPU, its clock domain should be associated with a separate voltage domain. The current implementation of the voltage domain does not take into consideration cases where there are derived voltage domains running at ratio of native voltage domains, as with the case where there can be on-chip buck/boost (charge pumps) voltage regulation logic. The regression and configuration scripts are updated with a generic voltage domain for the system, and one for the CPUs.
2013-08-19 09:52:28 +02:00
DebugFlag('VoltageDomain')
power: Add basic DVFS support for gem5 Adds DVFS capabilities to gem5, by allowing users to specify lists for frequencies and voltages in SrcClockDomains and VoltageDomains respectively. A separate component, DVFSHandler, provides a small interface to change operating points of the associated domains. Clock domains will be linked to voltage domains and thus allow separate clock, but shared voltage lines. Currently all the valid performance-level updates are performed with a fixed transition latency as specified for the domain. Config file example: ... vd = VoltageDomain(voltage = ['1V','0.95V','0.90V','0.85V']) tsys.cluster1.clk_domain.clock = ['1GHz','700MHz','400MHz','230MHz'] tsys.cluster2.clk_domain.clock = ['1GHz','700MHz','400MHz','230MHz'] tsys.cluster1.clk_domain.domain_id = 0 tsys.cluster2.clk_domain.domain_id = 1 tsys.cluster1.clk_domain.voltage_domain = vd tsys.cluster2.clk_domain.voltage_domain = vd tsys.dvfs_handler.domains = [tsys.cluster1.clk_domain, tsys.cluster2.clk_domain] tsys.dvfs_handler.enable = True
2014-06-30 19:56:06 +02:00
DebugFlag('DVFS')
syscall_emul: add extra debug support for syscalls Breaks the debug output from system calls into two levels: Base and Verbose. A macro is added specifically for system calls which allows developers to easily add new debug messages in a consistent manner. The macro also contains a field to print thread IDs along with the CPU ID.
2016-03-17 18:22:39 +01:00
CompoundFlag('SyscallAll', [ 'SyscallBase', 'SyscallVerbose'])
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