48 lines
2.3 KiB
Python
48 lines
2.3 KiB
Python
|
# Copyright (c) 2012 Mark D. Hill and David A. Wood
|
||
|
# 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: Nilay Vaish
|
||
|
|
||
|
from m5.SimObject import SimObject
|
||
|
from m5.params import *
|
||
|
|
||
|
class Prefetcher(SimObject):
|
||
|
type = 'Prefetcher'
|
||
|
cxx_class = 'Prefetcher'
|
||
|
cxx_header = "mem/ruby/structures/Prefetcher.hh"
|
||
|
|
||
|
num_streams = Param.UInt32(4,
|
||
|
"Number of prefetch streams to be allocated")
|
||
|
pf_per_stream = Param.UInt32(1, "Number of prefetches per stream")
|
||
|
unit_filter = Param.UInt32(8,
|
||
|
"Number of entries in the unit filter array")
|
||
|
nonunit_filter = Param.UInt32(8,
|
||
|
"Number of entries in the non-unit filter array")
|
||
|
train_misses = Param.UInt32(4, "")
|
||
|
num_startup_pfs = Param.UInt32(1, "")
|
||
|
cross_page = Param.Bool(False, """True if prefetched address can be on a
|
||
|
page different from the observed address""")
|