RubyCache.py revision 13665 
1# Copyright (c) 2009 Advanced Micro Devices, Inc.
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Steve Reinhardt
28#          Brad Beckmann
29
30from m5.params import *
31from m5.proxy import *
32from m5.objects.PseudoLRUReplacementPolicy import PseudoLRUReplacementPolicy
33from m5.SimObject import SimObject
34
35class RubyCache(SimObject):
36    type = 'RubyCache'
37    cxx_class = 'CacheMemory'
38    cxx_header = "mem/ruby/structures/CacheMemory.hh"
39    size = Param.MemorySize("capacity in bytes");
40    assoc = Param.Int("");
41    replacement_policy = Param.ReplacementPolicy(PseudoLRUReplacementPolicy(),
42                         "")
43    start_index_bit = Param.Int(6, "index start, default 6 for 64-byte line");
44    is_icache = Param.Bool(False, "is instruction only cache");
45    block_size = Param.MemorySize("0B", "block size in bytes. 0 means default RubyBlockSize")
46
47    dataArrayBanks = Param.Int(1, "Number of banks for the data array")
48    tagArrayBanks = Param.Int(1, "Number of banks for the tag array")
49    dataAccessLatency = Param.Cycles(1, "cycles for a data array access")
50    tagAccessLatency = Param.Cycles(1, "cycles for a tag array access")
51    resourceStalls = Param.Bool(False, "stall if there is a resource failure")
52    ruby_system = Param.RubySystem(Parent.any, "")
53