From: Geoffrey Blake Date: Sun, 10 Aug 2014 09:39:16 +0000 (-0400) Subject: config: Add SubSystem container for simobjects X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=dbdce42b88f9b1f954b1bbb5ae9c707a6a3c1d0c;p=gem5.git 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. --- diff --git a/src/sim/SConscript b/src/sim/SConscript index 9f9022f30..7d75a9439 100644 --- a/src/sim/SConscript +++ b/src/sim/SConscript @@ -38,6 +38,7 @@ SimObject('ClockDomain.py') SimObject('VoltageDomain.py') SimObject('System.py') SimObject('DVFSHandler.py') +SimObject('SubSystem.py') Source('arguments.cc') Source('async.cc') @@ -52,6 +53,7 @@ Source('serialize.cc') Source('drain.cc') Source('sim_events.cc') Source('sim_object.cc') +Source('sub_system.cc') Source('ticked_object.cc') Source('simulate.cc') Source('stat_control.cc') diff --git a/src/sim/SubSystem.py b/src/sim/SubSystem.py new file mode 100644 index 000000000..c69aeece9 --- /dev/null +++ b/src/sim/SubSystem.py @@ -0,0 +1,52 @@ +# Copyright (c) 2014 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: Geoffrey Blake +# + +from m5.SimObject import SimObject + +# An empty simobject. Used for organizing simobjects +# into logical groups as subsystems of a larger +# system. For example, if we wanted to build a cpu cluster +# subsystem of 2 cores with private L1 caches and a shared +# L2, but needed 8 total cores, we could instantiate 4 +# SubSystems containing the same child simobjects but avoid +# any naming conflicts. +# +class SubSystem(SimObject): + type = 'SubSystem' + cxx_header = "sim/sub_system.hh" + abstract = False diff --git a/src/sim/sub_system.cc b/src/sim/sub_system.cc new file mode 100644 index 000000000..e6e119b35 --- /dev/null +++ b/src/sim/sub_system.cc @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2014 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: Geoffrey Blake + */ + +#include "params/SubSystem.hh" +#include "sim/sub_system.hh" + +SubSystem * +SubSystemParams::create() +{ + return new SubSystem(this); +} diff --git a/src/sim/sub_system.hh b/src/sim/sub_system.hh new file mode 100644 index 000000000..bb47ed2f9 --- /dev/null +++ b/src/sim/sub_system.hh @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2014 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: Geoffrey Blake + */ + +/** + * @file + * SubSystem declarations. + */ + +#ifndef __SIM_SUB_SYSTEM_HH__ +#define __SIM_SUB_SYSTEM_HH__ + +#include "sim/sim_object.hh" + +/** + * The SubSystem simobject does nothing, it is just a container for + * other simobjects used by the configuration system + */ +class SubSystem : public SimObject +{ + public: + SubSystem(const Params *p) : + SimObject(p) + {} +}; + +#endif