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1 | # ========== Copyright Header Begin ========================================== |
2 | # | |
3 | # OpenSPARC T2 Processor File: Niagara.pm | |
4 | # Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
5 | # 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
6 | # | |
7 | # * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
8 | # | |
9 | # This program is free software; you can redistribute it and/or modify | |
10 | # it under the terms of the GNU General Public License as published by | |
11 | # the Free Software Foundation; version 2 of the License. | |
12 | # | |
13 | # This program is distributed in the hope that it will be useful, | |
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | # GNU General Public License for more details. | |
17 | # | |
18 | # You should have received a copy of the GNU General Public License | |
19 | # along with this program; if not, write to the Free Software | |
20 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | # | |
22 | # For the avoidance of doubt, and except that if any non-GPL license | |
23 | # choice is available it will apply instead, Sun elects to use only | |
24 | # the General Public License version 2 (GPLv2) at this time for any | |
25 | # software where a choice of GPL license versions is made | |
26 | # available with the language indicating that GPLv2 or any later version | |
27 | # may be used, or where a choice of which version of the GPL is applied is | |
28 | # otherwise unspecified. | |
29 | # | |
30 | # Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
31 | # CA 95054 USA or visit www.sun.com if you need additional information or | |
32 | # have any questions. | |
33 | # | |
34 | # ========== Copyright Header End ============================================ | |
35 | # -*- perl -*- | |
36 | ||
37 | package Midas::MMU::Niagara; | |
38 | use strict; | |
39 | ||
40 | use Midas::Command; | |
41 | use Midas::Error; | |
42 | use Midas::Configure; | |
43 | use Midas::Globals; | |
44 | use Midas::Segment; | |
45 | ||
46 | use TRELoad 'BitFieldTie'; | |
47 | ||
48 | use base qw(Midas::MMU); | |
49 | use fields qw( | |
50 | rasize | |
51 | ); | |
52 | ||
53 | ||
54 | ||
55 | ||
56 | ############################################################################## | |
57 | ||
58 | sub new { | |
59 | my $class = shift; | |
60 | my %args = @_; | |
61 | my $this = fields::new($class); | |
62 | $this->SUPER::new(); | |
63 | ||
64 | foreach my $key (keys %args) { | |
65 | $this->{$key} = $args{$key}; | |
66 | } | |
67 | ||
68 | $this->set_defaults(); | |
69 | ||
70 | $this->{mapattr_type} = 'Midas::MMU::Niagara::SectionAttrs'; | |
71 | ||
72 | return $this; | |
73 | } | |
74 | ||
75 | ############################################################################## | |
76 | ||
77 | sub set_defaults { | |
78 | my $this = shift; | |
79 | ||
80 | $this->{vasize} = 64 unless defined $this->{vasize}; | |
81 | $this->{pasize} = 40 unless defined $this->{pasize}; | |
82 | $this->{rasize} = 40 unless defined $this->{rasize}; | |
83 | $this->{type} = 'niagara' unless defined $this->{type}; | |
84 | ||
85 | ||
86 | $this->SUPER::set_defaults(); | |
87 | } | |
88 | ||
89 | ############################################################################## | |
90 | ||
91 | sub mmu_cpp_args { | |
92 | my $this = shift; | |
93 | my $list = ['-DNIAGARA']; | |
94 | push @$list, '-DALLOW_TSB_COL' if $CONFIG{allow_tsb_conflicts}; | |
95 | return $list; | |
96 | } | |
97 | ||
98 | ############################################################################## | |
99 | ||
100 | ############################################################################## | |
101 | ############################################################################## | |
102 | ||
103 | { | |
104 | package Midas::MMU::Niagara::SectionAttrs; | |
105 | use strict; | |
106 | ||
107 | use Carp; | |
108 | use Midas::Command; | |
109 | use Midas::Globals; | |
110 | use Midas::Error; | |
111 | use Midas::MMU::SunSectionAttrs; | |
112 | use Midas::MMU::TTEFormat; | |
113 | use BitFieldTie; | |
114 | ||
115 | ||
116 | use base qw(Midas::MMU::SunHyperAttrs); | |
117 | use fields (qw(), | |
118 | ( | |
119 | # Hard-code MMU type because 'use fields' directive needs | |
120 | # to happen at compile-time | |
121 | keys %{ get_union_tte_field_hash('niagara') } | |
122 | ) | |
123 | ); | |
124 | ||
125 | our @Settable = (); | |
126 | ||
127 | our %Settable = map { $_ => 1} Midas::MMU::Niagara::SectionAttrs->settable(); | |
128 | our %FieldSizes = (); | |
129 | ||
130 | ############################################################################ | |
131 | ||
132 | sub new { | |
133 | my $this = shift; | |
134 | my %args = @_; | |
135 | ||
136 | unless (ref $this) { | |
137 | $this = fields::new($this); | |
138 | } | |
139 | ||
140 | $this->{settable} = \%Settable; | |
141 | foreach my $key (keys %args) { | |
142 | $this->{$key} = $args{$key}; | |
143 | } | |
144 | ||
145 | return $this; | |
146 | } | |
147 | ||
148 | ############################################################################ | |
149 | ||
150 | sub set_defaults { | |
151 | my $this = shift; | |
152 | ||
153 | $this->SUPER::set_defaults(); | |
154 | ||
155 | foreach my $field (keys %FieldSizes) { | |
156 | $this->{$field} = 0 unless defined $this->{$field}; | |
157 | } | |
158 | } | |
159 | ||
160 | ############################################################################# | |
161 | ||
162 | sub settable { | |
163 | my $this = shift; | |
164 | my @settable = $this->SUPER::settable(); | |
165 | push @settable, @Settable; | |
166 | return @settable; | |
167 | } | |
168 | ||
169 | ############################################################################# | |
170 | ||
171 | sub get_field_size_hash { | |
172 | my $this = shift; | |
173 | my $sizes = $this->SUPER::get_field_size_hash(); | |
174 | ||
175 | foreach my $field (keys %FieldSizes) { | |
176 | $sizes->{$field} = $FieldSizes{$field}; | |
177 | } | |
178 | ||
179 | return $sizes; | |
180 | } | |
181 | ||
182 | ############################################################################ | |
183 | ||
184 | sub legal_page_bits { | |
185 | my $this = shift; | |
186 | return (0, 1, 3, 5); | |
187 | } | |
188 | ||
189 | ########################################################################### | |
190 | ||
191 | } | |
192 | ||
193 | ############################################################################## | |
194 | ||
195 | ############################################################################## | |
196 | ||
197 | 1; |