| 1 | # -*- perl -*- |
| 2 | |
| 3 | package Midas::MMU; |
| 4 | use strict; |
| 5 | |
| 6 | use Midas::Command; |
| 7 | use Midas::Configure; |
| 8 | use Midas::Error; |
| 9 | use Midas::Globals; |
| 10 | use Midas::Segment; |
| 11 | |
| 12 | use Midas::AttrBlock; |
| 13 | use Midas::MMU::TTEFormat; |
| 14 | |
| 15 | # Needs to be a require so it happens AFTER 'use fields'. |
| 16 | # This is because of a circularity in the inclusions |
| 17 | require Midas::MMU::Ultra2; |
| 18 | require Midas::MMU::Niagara; |
| 19 | require Midas::MMU::Niagara2; |
| 20 | require Midas::MMU::Rock; |
| 21 | |
| 22 | require Midas::TSB; |
| 23 | |
| 24 | require Exporter; |
| 25 | |
| 26 | our @ISA = qw(Exporter); |
| 27 | our @EXPORT = qw(create_mmu); |
| 28 | |
| 29 | use fields qw(type vasize pasize mapattr_type tsb_type tsblink_type); |
| 30 | |
| 31 | |
| 32 | ############################################################################## |
| 33 | |
| 34 | sub create_mmu { |
| 35 | my $type = shift; |
| 36 | my %args = @_; |
| 37 | |
| 38 | $type = lc $type; |
| 39 | my $mmu; |
| 40 | if($type eq 'niagara') { |
| 41 | $mmu = Midas::MMU::Niagara->new(%args); |
| 42 | } elsif($type eq 'niagara2') { |
| 43 | $mmu = Midas::MMU::Niagara2->new(%args); |
| 44 | } elsif($type eq 'rock') { |
| 45 | $mmu = Midas::MMU::Rock->new(%args); |
| 46 | } elsif($type eq 'ultra2' or $type eq 'ultrasparc2') { |
| 47 | $mmu = Midas::MMU::Ultra2->new(%args); |
| 48 | } else { |
| 49 | fatal "No such mmu type \"$type\"\n", M_BADCONFIG; |
| 50 | } |
| 51 | |
| 52 | |
| 53 | $VASIZE = $mmu->{vasize}; |
| 54 | $RASIZE = exists $mmu->{rasize} ? $mmu->{rasize} : $mmu->{pasize}; |
| 55 | $PASIZE = $mmu->{pasize}; |
| 56 | |
| 57 | $mmu->init_mmu(); |
| 58 | |
| 59 | |
| 60 | return $mmu; |
| 61 | } |
| 62 | |
| 63 | ############################################################################## |
| 64 | |
| 65 | sub new { |
| 66 | my $this = shift; |
| 67 | my %args = @_; |
| 68 | |
| 69 | unless (ref $this) { |
| 70 | $this = fields::new($this); |
| 71 | } |
| 72 | |
| 73 | |
| 74 | foreach my $key (keys %args) { |
| 75 | $this->{$key} = $args{$key}; |
| 76 | } |
| 77 | |
| 78 | $this->{mapattr_type} = 'Midas::MMU::SunSectionAttrs'; |
| 79 | $this->{tsb_type} = 'Midas::TSB'; |
| 80 | $this->{tsblink_type} = 'Midas::TSBLink'; |
| 81 | |
| 82 | return $this; |
| 83 | } |
| 84 | |
| 85 | ############################################################################## |
| 86 | |
| 87 | sub init_mmu { |
| 88 | my $this = shift; |
| 89 | |
| 90 | %MapAttr_Settable = map { $_ => 1 } $this->{mapattr_type}->settable(); |
| 91 | my $fieldhash = get_union_tte_field_hash( $this->{type} ); |
| 92 | foreach my $key (keys %$fieldhash) { |
| 93 | $MapAttr_Settable{$key} = 1; |
| 94 | } |
| 95 | |
| 96 | my $fhash_ref = $this->{mapattr_type}->get_field_size_hash(); |
| 97 | foreach my $key (keys %$fieldhash) { |
| 98 | $fhash_ref->{$key} = $fieldhash->{$key}; |
| 99 | } |
| 100 | foreach my $field (keys %$fhash_ref) { |
| 101 | my $width = $fhash_ref->{$field}; |
| 102 | my $range_bf = BitFieldTie->new(64, 1); |
| 103 | $range_bf->left_shift($width); |
| 104 | $MapAttr_FieldMax{$field} = $range_bf; |
| 105 | $MapAttr_FieldWidth{$field} = $width; |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | ############################################################################## |
| 110 | |
| 111 | sub set_defaults { |
| 112 | my $this = shift; |
| 113 | |
| 114 | $this->{vasize} = 64 unless defined $this->{vasize}; |
| 115 | $this->{pasize} = 64 unless defined $this->{pasize}; |
| 116 | $this->{type} = 'generic' unless defined $this->{type}; |
| 117 | |
| 118 | } |
| 119 | |
| 120 | ############################################################################## |
| 121 | |
| 122 | sub create_attrs_object { |
| 123 | my $this = shift; |
| 124 | my $type = shift; |
| 125 | |
| 126 | return Midas::AttrBlock::LinkAttrs->new() |
| 127 | if((lc $type) eq 'link'); |
| 128 | |
| 129 | return $this->{mapattr_type}->new(segment => Midas::Segment->new($type), |
| 130 | mmutype => $this->{type}, |
| 131 | ) |
| 132 | if Midas::Segment->is_segment_name($type); |
| 133 | |
| 134 | fatal "Can't create_attrs_object of type $type with abstract superclass ". |
| 135 | "Midas::MMU\n", M_CODE; |
| 136 | } |
| 137 | |
| 138 | ############################################################################## |
| 139 | |
| 140 | sub create_tsb_object { |
| 141 | my $this = shift; |
| 142 | my @args = @_; |
| 143 | |
| 144 | return $this->{tsb_type}->new(@args); |
| 145 | } |
| 146 | |
| 147 | ############################################################################## |
| 148 | |
| 149 | sub create_tsb_object_from_line { |
| 150 | my $this = shift; |
| 151 | my $startline = shift; |
| 152 | my $fh = shift; |
| 153 | my $srcfile = shift; |
| 154 | my $srcline = shift; |
| 155 | |
| 156 | $this->{tsb_type}->new_from_line($startline, $fh, $srcfile, $srcline, $this); |
| 157 | } |
| 158 | |
| 159 | ############################################################################## |
| 160 | |
| 161 | sub create_tsb_link_object { |
| 162 | my $this = shift; |
| 163 | my @args = @_; |
| 164 | |
| 165 | return $this->{tsblink_type}->new(@args); |
| 166 | } |
| 167 | |
| 168 | ############################################################################## |
| 169 | |
| 170 | sub create_tsb_link_object_from_line { |
| 171 | my $this = shift; |
| 172 | my $startline = shift; |
| 173 | my $fh = shift; |
| 174 | my $srcfile = shift; |
| 175 | my $srcline = shift; |
| 176 | |
| 177 | $this->{tsblink_type}->new_from_line($startline, $fh, $srcfile, $srcline, |
| 178 | $this); |
| 179 | } |
| 180 | |
| 181 | ############################################################################## |
| 182 | |
| 183 | sub mmu_cpp_args { |
| 184 | my $this = shift; |
| 185 | return; |
| 186 | } |
| 187 | |
| 188 | ############################################################################## |
| 189 | |
| 190 | sub parse_section_attrs { |
| 191 | my $this = shift; |
| 192 | my $startline = shift; |
| 193 | my $fh = shift; |
| 194 | my $srcline = shift; |
| 195 | my $srcfile = shift; |
| 196 | |
| 197 | local ($_); |
| 198 | $_ = $startline; |
| 199 | |
| 200 | my $attrs; |
| 201 | |
| 202 | my $segstring = join '|', map { "($_)" } Midas::Segment->all_names(); |
| 203 | |
| 204 | |
| 205 | if(/^\s*attr_($segstring|(link))\s*\{/) { |
| 206 | my $attr_type = $1; |
| 207 | |
| 208 | $attrs = $this->create_attrs_object($attr_type); |
| 209 | $attrs->set_defaults(); |
| 210 | |
| 211 | $attrs->{type} = $1; |
| 212 | $attrs->{srcfile} = $srcfile; |
| 213 | $attrs->{srcline} = $srcline; |
| 214 | |
| 215 | while(<$fh>) { |
| 216 | $srcline++; |
| 217 | last if /^\s*\}\s*$/; |
| 218 | my @attrs = split /,/, $_; |
| 219 | foreach my $attr (@attrs) { |
| 220 | $attr =~ s/\s+//g; |
| 221 | |
| 222 | if($attr =~ /(\S+)=(\S+)/) { |
| 223 | if($attrs->is_settable($1)) { |
| 224 | $attrs->set_attr($1, $2); |
| 225 | } else { |
| 226 | $attrs->attr_fatal("No such attribute '$1'", M_ILLEGALPARAM); |
| 227 | } |
| 228 | } elsif($attr =~ /(\S+)/) { |
| 229 | if($attrs->is_settable($1)) { |
| 230 | $attrs->set_attr($1, 1); |
| 231 | } else { |
| 232 | $attrs->attr_fatal("No such attribute '$1'", M_ILLEGALPARAM); |
| 233 | } |
| 234 | } |
| 235 | } |
| 236 | } |
| 237 | } else { |
| 238 | fatal "Error parsing section attributes: file=$srcfile line=$srcline:\n$_", |
| 239 | M_ATTRSYNTAX; |
| 240 | } |
| 241 | |
| 242 | $attrs->set_end_file_line($srcfile, $srcline); |
| 243 | |
| 244 | return $attrs; |
| 245 | } |
| 246 | |
| 247 | ############################################################################## |
| 248 | 1; |