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#
# Copyright 2017-2019 Advanced Micro Devices, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# on the rights to use, copy, modify, merge, publish, distribute, sub
# license, and/or sell copies of the Software, and to permit persons to whom
# the Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
# THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
# USE OR OTHER DEALINGS IN THE SOFTWARE.
#
"""
Helper script that parses a register header and produces a register database
as output. Use as:
python3 parseheader.py ADDRESS_SPACE < header.h
This script is included for reference -- we should be able to remove this in
the future.
"""
from __future__ import absolute_import, division, print_function, unicode_literals
import json
import math
import re
import sys
from regdb import Object, RegisterDatabase, deduplicate_enums, deduplicate_register_types
RE_comment = re.compile(r'(/\*(.*)\*/)$|(//(.*))$')
RE_prefix = re.compile(r'([RSV])_([0-9a-fA-F]+)_')
RE_set_value = re.compile(r'\(\(\(unsigned\)\(x\) & ([0-9a-fA-Fx]+)\) << ([0-9]+)\)')
RE_set_value_no_shift = re.compile(r'\((\(unsigned\))?\(x\) & ([0-9a-fA-Fx]+)\)')
class HeaderParser(object):
def __init__(self, address_space):
self.regdb = RegisterDatabase()
self.chips = ['si', 'cik', 'vi', 'fiji', 'stoney', 'gfx9']
self.address_space = address_space
def __fini_field(self):
if self.__field is None:
return
if self.__enumentries:
self.__field.enum_ref = self.__regmap.name + '__' + self.__field.name
self.regdb.add_enum(self.__field.enum_ref, Object(
entries=self.__enumentries
))
self.__fields.append(self.__field)
self.__enumentries = None
self.__field = None
def __fini_register(self):
if self.__regmap is None:
return
if self.__fields:
self.regdb.add_register_type(self.__regmap.name, Object(
fields=self.__fields
))
self.__regmap.type_ref = self.__regmap.name
self.regdb.add_register_mapping(self.__regmap)
self.__regmap = None
self.__fields = None
def parse_header(self, filp):
regdb = RegisterDatabase()
chips = ['si', 'cik', 'vi', 'fiji', 'stoney', 'gfx9']
self.__regmap = None
self.__fields = None
self.__field = None
self.__enumentries = None
for line in filp:
if not line.startswith('#define '):
continue
line = line[8:].strip()
comment = None
m = RE_comment.search(line)
if m is not None:
comment = m.group(2) or m.group(4)
comment = comment.strip()
line = line[:m.span()[0]].strip()
split = line.split(None, 1)
name = split[0]
m = RE_prefix.match(name)
if m is None:
continue
prefix = m.group(1)
prefix_address = int(m.group(2), 16)
name = name[m.span()[1]:]
if prefix == 'V':
value = int(split[1], 0)
for entry in self.__enumentries:
if name == entry.name:
sys.exit('Duplicate value define: name = {0}'.format(name))
entry = Object(name=name, value=value)
if comment is not None:
entry.comment = comment
self.__enumentries.append(entry)
continue
if prefix == 'S':
self.__fini_field()
if not name.endswith('(x)'):
sys.exit('Missing (x) in S line: {0}'.line)
name = name[:-3]
for field in self.__fields:
if name == field.name:
sys.exit('Duplicate field define: {0}'.format(name))
m = RE_set_value.match(split[1])
if m is not None:
unshifted_mask = int(m.group(1), 0)
shift = int(m.group(2), 0)
else:
m = RE_set_value_no_shift.match(split[1])
if m is not None:
unshifted_mask = int(m.group(2), 0)
shift = 0
else:
sys.exit('Bad S_xxx_xxx define: {0}'.format(line))
num_bits = int(math.log2(unshifted_mask + 1))
if unshifted_mask != (1 << num_bits) - 1:
sys.exit('Bad unshifted mask in {0}'.format(line))
self.__field = Object(
name=name,
bits=[shift, shift + num_bits - 1],
)
if comment is not None:
self.__field.comment = comment
self.__enumentries = []
if prefix == 'R':
self.__fini_field()
self.__fini_register()
if regdb.register_mappings_by_name(name):
sys.exit('Duplicate register define: {0}'.format(name))
address = int(split[1], 0)
if address != prefix_address:
sys.exit('Inconsistent register address: {0}'.format(line))
self.__regmap = Object(
name=name,
chips=self.chips,
map=Object(to=self.address_space, at=address),
)
self.__fields = []
self.__fini_field()
self.__fini_register()
def main():
map_to = sys.argv[1]
parser = HeaderParser(map_to)
parser.parse_header(sys.stdin)
deduplicate_enums(parser.regdb)
deduplicate_register_types(parser.regdb)
print(parser.regdb.encode_json_pretty())
if __name__ == '__main__':
main()
# kate: space-indent on; indent-width 4; replace-tabs on;
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