19363Snilay@cs.wisc.edu# Copyright (c) 2012 Mark D. Hill and David A. Wood 29363Snilay@cs.wisc.edu# All rights reserved. 39363Snilay@cs.wisc.edu# 49363Snilay@cs.wisc.edu# Redistribution and use in source and binary forms, with or without 59363Snilay@cs.wisc.edu# modification, are permitted provided that the following conditions are 69363Snilay@cs.wisc.edu# met: redistributions of source code must retain the above copyright 79363Snilay@cs.wisc.edu# notice, this list of conditions and the following disclaimer; 89363Snilay@cs.wisc.edu# redistributions in binary form must reproduce the above copyright 99363Snilay@cs.wisc.edu# notice, this list of conditions and the following disclaimer in the 109363Snilay@cs.wisc.edu# documentation and/or other materials provided with the distribution; 119363Snilay@cs.wisc.edu# neither the name of the copyright holders nor the names of its 129363Snilay@cs.wisc.edu# contributors may be used to endorse or promote products derived from 139363Snilay@cs.wisc.edu# this software without specific prior written permission. 149363Snilay@cs.wisc.edu# 159363Snilay@cs.wisc.edu# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 169363Snilay@cs.wisc.edu# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 179363Snilay@cs.wisc.edu# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 189363Snilay@cs.wisc.edu# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 199363Snilay@cs.wisc.edu# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 209363Snilay@cs.wisc.edu# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 219363Snilay@cs.wisc.edu# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 229363Snilay@cs.wisc.edu# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 239363Snilay@cs.wisc.edu# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 249363Snilay@cs.wisc.edu# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 259363Snilay@cs.wisc.edu# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 269363Snilay@cs.wisc.edu# 279363Snilay@cs.wisc.edu# Authors: Nilay Vaish 289363Snilay@cs.wisc.edu 299363Snilay@cs.wisc.edufrom m5.SimObject import SimObject 309363Snilay@cs.wisc.edufrom m5.params import * 3110466Sandreas.hansson@arm.comfrom m5.proxy import * 329363Snilay@cs.wisc.edu 3313665Sandreas.sandberg@arm.comfrom m5.objects.System import System 3413665Sandreas.sandberg@arm.com 359363Snilay@cs.wisc.educlass Prefetcher(SimObject): 369363Snilay@cs.wisc.edu type = 'Prefetcher' 379363Snilay@cs.wisc.edu cxx_class = 'Prefetcher' 389363Snilay@cs.wisc.edu cxx_header = "mem/ruby/structures/Prefetcher.hh" 399363Snilay@cs.wisc.edu 409363Snilay@cs.wisc.edu num_streams = Param.UInt32(4, 419363Snilay@cs.wisc.edu "Number of prefetch streams to be allocated") 429363Snilay@cs.wisc.edu pf_per_stream = Param.UInt32(1, "Number of prefetches per stream") 439363Snilay@cs.wisc.edu unit_filter = Param.UInt32(8, 449363Snilay@cs.wisc.edu "Number of entries in the unit filter array") 459363Snilay@cs.wisc.edu nonunit_filter = Param.UInt32(8, 469363Snilay@cs.wisc.edu "Number of entries in the non-unit filter array") 479363Snilay@cs.wisc.edu train_misses = Param.UInt32(4, "") 489363Snilay@cs.wisc.edu num_startup_pfs = Param.UInt32(1, "") 499363Snilay@cs.wisc.edu cross_page = Param.Bool(False, """True if prefetched address can be on a 509363Snilay@cs.wisc.edu page different from the observed address""") 5110466Sandreas.hansson@arm.com sys = Param.System(Parent.any, "System this prefetcher belongs to") 52