diff options
Diffstat (limited to 'src/arch/arm/ArmPMU.py')
-rw-r--r-- | src/arch/arm/ArmPMU.py | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/arch/arm/ArmPMU.py b/src/arch/arm/ArmPMU.py new file mode 100644 index 000000000..dc393be69 --- /dev/null +++ b/src/arch/arm/ArmPMU.py @@ -0,0 +1,83 @@ +# -*- mode:python -*- +# Copyright (c) 2009-2014 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: Matt Horsnell +# Andreas Sandberg + +from m5.defines import buildEnv +from m5.SimObject import SimObject +from m5.params import * +from m5.params import isNullPointer +from m5.proxy import * + +class ArmPMU(SimObject): + type = 'ArmPMU' + cxx_class = 'ArmISA::PMU' + cxx_header = 'arch/arm/pmu.hh' + + @classmethod + def export_methods(cls, code): + code(''' + void addEventProbe(unsigned int id, + SimObject *obj, const char *name); +''') + + # To prevent cycles in the configuration hierarchy, we don't keep + # a list of supported events as a configuration param. Instead, we + # keep them in a local list and register them using the + # addEventProbe interface when other SimObjects register their + # probe listeners. + _deferred_event_types = [] + # Override the normal SimObject::regProbeListeners method and + # register deferred event handlers. + def regProbeListeners(self): + for event_id, obj, name in self._deferred_event_types: + self.getCCObject().addEventProbe(event_id, obj.getCCObject(), name) + + self.getCCObject().regProbeListeners() + + def addEventProbe(self, event_id, obj, *args): + """Add a probe-based event to the PMU if obj is not None.""" + + if obj is None: + return + + for name in args: + self._deferred_event_types.append((event_id, obj, name)) + + platform = Param.Platform(Parent.any, "Platform this device is part of.") + eventCounters = Param.Int(31, "Number of supported PMU counters") + pmuInterrupt = Param.Int(68, "PMU GIC interrupt number") |