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1 | # ========== Copyright Header Begin ========================================== |
2 | # | |
3 | # OpenSPARC T2 Processor File: MMU.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; | |
38 | use strict; | |
39 | ||
40 | use Midas::Command; | |
41 | use Midas::Configure; | |
42 | use Midas::Error; | |
43 | use Midas::Globals; | |
44 | use Midas::Segment; | |
45 | ||
46 | use Midas::AttrBlock; | |
47 | use Midas::MMU::TTEFormat; | |
48 | ||
49 | # Needs to be a require so it happens AFTER 'use fields'. | |
50 | # This is because of a circularity in the inclusions | |
51 | require Midas::MMU::Ultra2; | |
52 | require Midas::MMU::Niagara; | |
53 | require Midas::MMU::Niagara2; | |
54 | ||
55 | ||
56 | require Midas::TSB; | |
57 | ||
58 | require Exporter; | |
59 | ||
60 | our @ISA = qw(Exporter); | |
61 | our @EXPORT = qw(create_mmu); | |
62 | ||
63 | use fields qw(type vasize pasize mapattr_type tsb_type tsblink_type); | |
64 | ||
65 | ||
66 | ############################################################################## | |
67 | ||
68 | sub create_mmu { | |
69 | my $type = shift; | |
70 | my %args = @_; | |
71 | ||
72 | $type = lc $type; | |
73 | my $mmu; | |
74 | if($type eq 'niagara') { | |
75 | $mmu = Midas::MMU::Niagara->new(%args); | |
76 | } elsif($type eq 'niagara2') { | |
77 | $mmu = Midas::MMU::Niagara2->new(%args); | |
78 | } elsif($type eq 'ultra2' or $type eq 'ultrasparc2') { | |
79 | $mmu = Midas::MMU::Ultra2->new(%args); | |
80 | } else { | |
81 | fatal "No such mmu type \"$type\"\n", M_BADCONFIG; | |
82 | } | |
83 | ||
84 | ||
85 | $VASIZE = $mmu->{vasize}; | |
86 | $RASIZE = exists $mmu->{rasize} ? $mmu->{rasize} : $mmu->{pasize}; | |
87 | $PASIZE = $mmu->{pasize}; | |
88 | ||
89 | $mmu->init_mmu(); | |
90 | ||
91 | ||
92 | return $mmu; | |
93 | } | |
94 | ||
95 | ############################################################################## | |
96 | ||
97 | sub new { | |
98 | my $this = shift; | |
99 | my %args = @_; | |
100 | ||
101 | unless (ref $this) { | |
102 | $this = fields::new($this); | |
103 | } | |
104 | ||
105 | ||
106 | foreach my $key (keys %args) { | |
107 | $this->{$key} = $args{$key}; | |
108 | } | |
109 | ||
110 | $this->{mapattr_type} = 'Midas::MMU::SunSectionAttrs'; | |
111 | $this->{tsb_type} = 'Midas::TSB'; | |
112 | $this->{tsblink_type} = 'Midas::TSBLink'; | |
113 | ||
114 | return $this; | |
115 | } | |
116 | ||
117 | ############################################################################## | |
118 | ||
119 | sub init_mmu { | |
120 | my $this = shift; | |
121 | ||
122 | %MapAttr_Settable = map { $_ => 1 } $this->{mapattr_type}->settable(); | |
123 | my $fieldhash = get_union_tte_field_hash( $this->{type} ); | |
124 | foreach my $key (keys %$fieldhash) { | |
125 | $MapAttr_Settable{$key} = 1; | |
126 | } | |
127 | ||
128 | my $fhash_ref = $this->{mapattr_type}->get_field_size_hash(); | |
129 | foreach my $key (keys %$fieldhash) { | |
130 | $fhash_ref->{$key} = $fieldhash->{$key}; | |
131 | } | |
132 | foreach my $field (keys %$fhash_ref) { | |
133 | my $width = $fhash_ref->{$field}; | |
134 | my $range_bf = BitFieldTie->new(64, 1); | |
135 | $range_bf->left_shift($width); | |
136 | $MapAttr_FieldMax{$field} = $range_bf; | |
137 | $MapAttr_FieldWidth{$field} = $width; | |
138 | } | |
139 | } | |
140 | ||
141 | ############################################################################## | |
142 | ||
143 | sub set_defaults { | |
144 | my $this = shift; | |
145 | ||
146 | $this->{vasize} = 64 unless defined $this->{vasize}; | |
147 | $this->{pasize} = 64 unless defined $this->{pasize}; | |
148 | $this->{type} = 'generic' unless defined $this->{type}; | |
149 | ||
150 | } | |
151 | ||
152 | ############################################################################## | |
153 | ||
154 | sub create_attrs_object { | |
155 | my $this = shift; | |
156 | my $type = shift; | |
157 | ||
158 | return Midas::AttrBlock::LinkAttrs->new() | |
159 | if((lc $type) eq 'link'); | |
160 | ||
161 | return $this->{mapattr_type}->new(segment => Midas::Segment->new($type), | |
162 | mmutype => $this->{type}, | |
163 | ) | |
164 | if Midas::Segment->is_segment_name($type); | |
165 | ||
166 | fatal "Can't create_attrs_object of type $type with abstract superclass ". | |
167 | "Midas::MMU\n", M_CODE; | |
168 | } | |
169 | ||
170 | ############################################################################## | |
171 | ||
172 | sub create_tsb_object { | |
173 | my $this = shift; | |
174 | my @args = @_; | |
175 | ||
176 | return $this->{tsb_type}->new(@args); | |
177 | } | |
178 | ||
179 | ############################################################################## | |
180 | ||
181 | sub create_tsb_object_from_line { | |
182 | my $this = shift; | |
183 | my $startline = shift; | |
184 | my $fh = shift; | |
185 | my $srcfile = shift; | |
186 | my $srcline = shift; | |
187 | ||
188 | $this->{tsb_type}->new_from_line($startline, $fh, $srcfile, $srcline, $this); | |
189 | } | |
190 | ||
191 | ############################################################################## | |
192 | ||
193 | sub create_tsb_link_object { | |
194 | my $this = shift; | |
195 | my @args = @_; | |
196 | ||
197 | return $this->{tsblink_type}->new(@args); | |
198 | } | |
199 | ||
200 | ############################################################################## | |
201 | ||
202 | sub create_tsb_link_object_from_line { | |
203 | my $this = shift; | |
204 | my $startline = shift; | |
205 | my $fh = shift; | |
206 | my $srcfile = shift; | |
207 | my $srcline = shift; | |
208 | ||
209 | $this->{tsblink_type}->new_from_line($startline, $fh, $srcfile, $srcline, | |
210 | $this); | |
211 | } | |
212 | ||
213 | ############################################################################## | |
214 | ||
215 | sub mmu_cpp_args { | |
216 | my $this = shift; | |
217 | return; | |
218 | } | |
219 | ||
220 | ############################################################################## | |
221 | ||
222 | sub parse_section_attrs { | |
223 | my $this = shift; | |
224 | my $startline = shift; | |
225 | my $fh = shift; | |
226 | my $srcline = shift; | |
227 | my $srcfile = shift; | |
228 | ||
229 | local ($_); | |
230 | $_ = $startline; | |
231 | ||
232 | my $attrs; | |
233 | ||
234 | my $segstring = join '|', map { "($_)" } Midas::Segment->all_names(); | |
235 | ||
236 | ||
237 | if(/^\s*attr_($segstring|(link))\s*\{/) { | |
238 | my $attr_type = $1; | |
239 | ||
240 | $attrs = $this->create_attrs_object($attr_type); | |
241 | $attrs->set_defaults(); | |
242 | ||
243 | $attrs->{type} = $1; | |
244 | $attrs->{srcfile} = $srcfile; | |
245 | $attrs->{srcline} = $srcline; | |
246 | ||
247 | while(<$fh>) { | |
248 | $srcline++; | |
249 | last if /^\s*\}\s*$/; | |
250 | my @attrs = split /,/, $_; | |
251 | foreach my $attr (@attrs) { | |
252 | $attr =~ s/\s+//g; | |
253 | ||
254 | if($attr =~ /(\S+)=(\S+)/) { | |
255 | if($attrs->is_settable($1)) { | |
256 | $attrs->set_attr($1, $2); | |
257 | } else { | |
258 | $attrs->attr_fatal("No such attribute '$1'", M_ILLEGALPARAM); | |
259 | } | |
260 | } elsif($attr =~ /(\S+)/) { | |
261 | if($attrs->is_settable($1)) { | |
262 | $attrs->set_attr($1, 1); | |
263 | } else { | |
264 | $attrs->attr_fatal("No such attribute '$1'", M_ILLEGALPARAM); | |
265 | } | |
266 | } | |
267 | } | |
268 | } | |
269 | } else { | |
270 | fatal "Error parsing section attributes: file=$srcfile line=$srcline:\n$_", | |
271 | M_ATTRSYNTAX; | |
272 | } | |
273 | ||
274 | $attrs->set_end_file_line($srcfile, $srcline); | |
275 | ||
276 | return $attrs; | |
277 | } | |
278 | ||
279 | ############################################################################## | |
280 | 1; |