a1c502426e
A new Prefetcher namespace was added which holds the gem5 prefetchers and means they don't all need a "Prefetcher" in their name. Unfortunately that means that there is now both a Prefetcher namespace and a Prefetcher class which conflict with each other. This change tries to resolve the conflict with as little disruption as possible by simply renaming the c++ ruby Pretcher class RubyPrefetcher, leaving the python name alone so that configs aren't affected. Issue-on: https://gem5.atlassian.net/browse/GEM5-447 Change-Id: I7afdf5dbc57dbf46d82552113c52f3a9207870f2 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27949 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>
61 lines
2.9 KiB
Python
61 lines
2.9 KiB
Python
# Copyright (c) 2020 ARM Limited
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# All rights reserved.
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Copyright (c) 2012 Mark D. Hill and David A. Wood
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from m5.SimObject import SimObject
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from m5.params import *
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from m5.proxy import *
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from m5.objects.System import System
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class Prefetcher(SimObject):
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type = 'Prefetcher'
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cxx_class = 'RubyPrefetcher'
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cxx_header = "mem/ruby/structures/Prefetcher.hh"
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num_streams = Param.UInt32(4,
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"Number of prefetch streams to be allocated")
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unit_filter = Param.UInt32(8,
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"Number of entries in the unit filter array")
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nonunit_filter = Param.UInt32(8,
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"Number of entries in the non-unit filter array")
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train_misses = Param.UInt32(4, "")
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num_startup_pfs = Param.UInt32(1, "")
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cross_page = Param.Bool(False, """True if prefetched address can be on a
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page different from the observed address""")
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sys = Param.System(Parent.any, "System this prefetcher belongs to")
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