ArmTLB.py revision 9338
1# -*- mode:python -*-
2
3# Copyright (c) 2009 ARM Limited
4# All rights reserved.
5#
6# The license below extends only to copyright in the software and shall
7# not be construed as granting a license to any other intellectual
8# property including but not limited to intellectual property relating
9# to a hardware implementation of the functionality of the software
10# licensed hereunder.  You may use the software subject to the license
11# terms below provided that you ensure that this notice is replicated
12# unmodified and in its entirety in all distributions of the software,
13# modified or unmodified, in source code or in binary form.
14#
15# Redistribution and use in source and binary forms, with or without
16# modification, are permitted provided that the following conditions are
17# met: redistributions of source code must retain the above copyright
18# notice, this list of conditions and the following disclaimer;
19# redistributions in binary form must reproduce the above copyright
20# notice, this list of conditions and the following disclaimer in the
21# documentation and/or other materials provided with the distribution;
22# neither the name of the copyright holders nor the names of its
23# contributors may be used to endorse or promote products derived from
24# this software without specific prior written permission.
25#
26# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37#
38# Authors: Ali Saidi
39
40from m5.SimObject import SimObject
41from m5.params import *
42from m5.proxy import *
43from MemObject import MemObject
44
45class ArmTableWalker(MemObject):
46    type = 'ArmTableWalker'
47    cxx_class = 'ArmISA::TableWalker'
48    cxx_header = "arch/arm/table_walker.hh"
49    port = MasterPort("Port for TableWalker to do walk the translation with")
50    sys = Param.System(Parent.any, "system object parameter")
51    num_squash_per_cycle = Param.Unsigned(2,
52            "Number of outstanding walks that can be squashed per cycle")
53
54class ArmTLB(SimObject):
55    type = 'ArmTLB'
56    cxx_class = 'ArmISA::TLB'
57    cxx_header = "arch/arm/tlb.hh"
58    size = Param.Int(64, "TLB size")
59    walker = Param.ArmTableWalker(ArmTableWalker(), "HW Table walker")
60