1# Copyright (c) 2007 The Hewlett-Packard Development Company
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder.  You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated
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11# modified or unmodified, in source code or in binary form.
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13# Redistribution and use in source and binary forms, with or without
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15# met: redistributions of source code must retain the above copyright
16# notice, this list of conditions and the following disclaimer;
17# redistributions in binary form must reproduce the above copyright
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20# neither the name of the copyright holders nor the names of its
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22# this software without specific prior written permission.
23#
24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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35#
36# Authors: Gabe Black
37
38from m5.params import *
39from m5.proxy import *
40
41from m5.objects.BaseTLB import BaseTLB
42from m5.objects.ClockedObject import ClockedObject
43
44class X86PagetableWalker(ClockedObject):
45    type = 'X86PagetableWalker'
46    cxx_class = 'X86ISA::Walker'
47    cxx_header = 'arch/x86/pagetable_walker.hh'
48    port = MasterPort("Port for the hardware table walker")
49    system = Param.System(Parent.any, "system object")
50    num_squash_per_cycle = Param.Unsigned(4,
51            "Number of outstanding walks that can be squashed per cycle")
52
53class X86TLB(BaseTLB):
54    type = 'X86TLB'
55    cxx_class = 'X86ISA::TLB'
56    cxx_header = 'arch/x86/tlb.hh'
57    size = Param.Unsigned(64, "TLB size")
58    walker = Param.X86PagetableWalker(\
59            X86PagetableWalker(), "page table walker")
60