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[susieq] Update qib_genbits.pl to handle SusieQ definitions

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The latest RTL-generated register lists include (mostly redundant)
xxx_MSB values alongside xxx_LSB and xxx_RMASK, and also include
default register values.
This commit is contained in:
Michael Brown 2009-11-11 00:45:52 +00:00
parent 7467cf5f09
commit ef0e76811b
1 changed files with 24 additions and 4 deletions
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28
src/drivers/infiniband/qib_genbits.pl Normal file → Executable file
View File

@ -20,6 +20,7 @@ use strict;
use warnings;
my $offsets = {};
my $defaults = {};
my $structures = {};
my $structure = "";
@ -28,8 +29,12 @@ while ( <> ) {
if ( /^\#define (\S+)_OFFS (\S+)$/ ) {
$structure = $1;
$offsets->{$structure} = $2;
} elsif ( /^\#define ${structure}_DEF (\S+)$/ ) {
$defaults->{$structure} = $1;
} elsif ( /^\#define ${structure}_(\S+)_LSB (\S+)$/ ) {
$structures->{$structure}->{$1}->{LSB} = $2;
} elsif ( /^\#define ${structure}_(\S+)_MSB (\S+)$/ ) {
$structures->{$structure}->{$1}->{MSB} = $2;
} elsif ( /^\#define ${structure}_(\S+)_RMASK (\S+)$/ ) {
$structures->{$structure}->{$1}->{RMASK} = $2;
} elsif ( /^\s*$/ ) {
@ -39,7 +44,8 @@ while ( <> ) {
}
}
my $data = [ map { { name => $_, offset => $offsets->{$_} }; }
my $data = [ map { { name => $_, offset => $offsets->{$_},
default => $defaults->{$_} }; }
sort { hex ( $offsets->{$a} ) <=> hex ( $offsets->{$b} ) }
keys %$offsets ];
@ -47,6 +53,7 @@ foreach my $datum ( @$data ) {
next unless exists $structures->{$datum->{name}};
$structure = $structures->{$datum->{name}};
my $fields = [ map { { name => $_, lsb => $structure->{$_}->{LSB},
msb => $structure->{$_}->{MSB},
rmask => $structure->{$_}->{RMASK} }; }
sort { hex ( $structure->{$a}->{LSB} ) <=>
hex ( $structure->{$b}->{LSB} ) }
@ -54,7 +61,7 @@ foreach my $datum ( @$data ) {
$datum->{fields} = $fields;
}
print "\n/* This file has been further processed by $0 */\n\n"
print "\n/* This file has been further processed by $0 */\n\n";
print "FILE_LICENCE ( GPL2_ONLY );\n\n";
foreach my $datum ( @$data ) {
@ -66,11 +73,15 @@ foreach my $datum ( @$data ) {
printf "struct %s_pb {\n", $datum->{name};
foreach my $field ( @{$datum->{fields}} ) {
my $pad_width = ( hex ( $field->{lsb} ) - $lsb );
die "Inconsistent LSB/RMASK in $datum->{name}\n" if $pad_width < 0;
die "Inconsistent LSB/RMASK in $datum->{name} before $field->{name}\n"
if $pad_width < 0;
printf "\tpseudo_bit_t _unused_%u[%u];\n", $reserved_idx++, $pad_width
if $pad_width;
$lsb += $pad_width;
# Damn Perl can't cope with 64-bit hex constants
my $width = 0;
die "Missing RMASK in $datum->{name}.$field->{name}\n"
unless defined $field->{rmask};
my $rmask = $field->{rmask};
while ( $rmask =~ /^(0x.+)f$/i ) {
$width += 4;
@ -81,16 +92,25 @@ foreach my $datum ( @$data ) {
$width++;
$rmask >>= 1;
}
if ( defined $field->{msb} ) {
my $msb_width = ( hex ( $field->{msb} ) - $lsb + 1 );
$width ||= $msb_width;
die "Inconsistent LSB/MSB/RMASK in $datum->{name}.$field->{name}\n"
unless $width == $msb_width;
}
printf "\tpseudo_bit_t %s[%u];\n", $field->{name}, $width;
$lsb += $width;
}
my $pad_width = ( 64 - $lsb );
die "Inconsistent LSB/RMASK in $datum->{name}\n" if $pad_width < 0;
die "Inconsistent LSB/RMASK in $datum->{name} final field\n"
if $pad_width < 0;
printf "\tpseudo_bit_t _unused_%u[%u];\n", $reserved_idx++, $pad_width
if $pad_width;
printf "};\n";
printf "struct %s {\n\tPSEUDO_BIT_STRUCT ( struct %s_pb );\n};\n",
$datum->{name}, $datum->{name};
}
printf "/* Default value: %s */\n", $datum->{default}
if defined $datum->{default};
print "\n";
}