from __future__ import print_function CopyRight = ''' /* * Copyright 2015 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. * */ ''' import collections import functools import itertools import os.path import re import sys class StringTable: """ A class for collecting multiple strings in a single larger string that is used by indexing (to avoid relocations in the resulting binary) """ def __init__(self): self.table = [] self.length = 0 def add(self, string): # We might get lucky with string being a suffix of a previously added string for te in self.table: if te[0].endswith(string): idx = te[1] + len(te[0]) - len(string) te[2].add(idx) return idx idx = self.length self.table.append((string, idx, set((idx,)))) self.length += len(string) + 1 return idx def emit(self, filp, name, static=True): """ Write [static] const char name[] = "..."; to filp. """ fragments = [ '"%s\\0" /* %s */' % ( te[0].encode('unicode_escape').decode(), ', '.join(str(idx) for idx in sorted(te[2])) ) for te in self.table ] filp.write('%sconst char %s[] =\n%s;\n' % ( 'static ' if static else '', name, '\n'.join('\t' + fragment for fragment in fragments) )) class IntTable: """ A class for collecting multiple arrays of integers in a single big array that is used by indexing (to avoid relocations in the resulting binary) """ def __init__(self, typename): self.typename = typename self.table = [] self.idxs = set() def add(self, array): # We might get lucky and find the array somewhere in the existing data try: idx = 0 while True: idx = self.table.index(array[0], idx, len(self.table) - len(array) + 1) for i in range(1, len(array)): if array[i] != self.table[idx + i]: break else: self.idxs.add(idx) return idx idx += 1 except ValueError: pass idx = len(self.table) self.table += array self.idxs.add(idx) return idx def emit(self, filp, name, static=True): """ Write [static] const typename name[] = { ... }; to filp. """ idxs = sorted(self.idxs) + [len(self.table)] fragments = [ ('\t/* %s */ %s' % ( idxs[i], ' '.join((str(elt) + ',') for elt in self.table[idxs[i]:idxs[i+1]]) )) for i in range(len(idxs) - 1) ] filp.write('%sconst %s %s[] = {\n%s\n};\n' % ( 'static ' if static else '', self.typename, name, '\n'.join(fragments) )) class Field: def __init__(self, reg, s_name): self.s_name = s_name self.name = strip_prefix(s_name) self.values = [] def format(self, string_table, idx_table): if len(self.values): values_offsets = [] for value in self.values: while value[1] >= len(values_offsets): values_offsets.append(-1) values_offsets[value[1]] = string_table.add(strip_prefix(value[0])) return '{%s, %s(~0u), %s, %s}' % ( string_table.add(self.name), self.s_name, len(values_offsets), idx_table.add(values_offsets)) else: return '{%s, %s(~0u)}' % (string_table.add(self.name), self.s_name) def __eq__(self, other): return (self.s_name == other.s_name and self.name == other.name and len(self.values) == len(other.values) and all(a[0] == b[0] and a[1] == b[1] for a, b, in zip(self.values, other.values))) def __ne__(self, other): return not (self == other) class FieldTable: """ A class for collecting multiple arrays of register fields in a single big array that is used by indexing (to avoid relocations in the resulting binary) """ def __init__(self): self.table = [] self.idxs = set() self.name_to_idx = collections.defaultdict(lambda: []) def add(self, array): """ Add an array of Field objects, and return the index of where to find the array in the table. """ # Check if we can find the array in the table already for base_idx in self.name_to_idx.get(array[0].name, []): if base_idx + len(array) > len(self.table): continue for i, a in enumerate(array): b = self.table[base_idx + i] if a != b: break else: return base_idx base_idx = len(self.table) self.idxs.add(base_idx) for field in array: self.name_to_idx[field.name].append(len(self.table)) self.table.append(field) return base_idx def emit(self, filp, string_table, idx_table): """ Write static const struct si_field sid_fields_table[] = { ... }; to filp. """ idxs = sorted(self.idxs) + [len(self.table)] filp.write('static const struct si_field sid_fields_table[] = {\n') for start, end in zip(idxs, idxs[1:]): filp.write('\t/* %s */\n' % (start)) for field in self.table[start:end]: filp.write('\t%s,\n' % (field.format(string_table, idx_table))) filp.write('};\n') class Reg: def __init__(self, r_name): self.r_name = r_name self.name = strip_prefix(r_name) self.fields = [] def __eq__(self, other): if not isinstance(other, Reg): return False return (self.r_name == other.r_name and self.name == other.name and len(self.fields) == len(other.fields) and all(a == b for a, b in zip(self.fields, other.fields))) def __ne__(self, other): return not (self == other) def strip_prefix(s): '''Strip prefix in the form ._.*_, e.g. R_001234_''' return s[s[2:].find('_')+3:] class Asic: """ Store the registers of one ASIC class / group of classes. """ def __init__(self, name): self.name = name self.registers = [] def parse(self, filp, packets, older_asics): """ Parse registers from the given header file. Packets are separately stored in the packets array. """ for line in filp: if not line.startswith('#define '): continue line = line[8:].strip() if line.startswith('R_'): name = line.split()[0] for it in self.registers: if it.r_name == name: sys.exit('Duplicate register define: %s' % (name)) else: reg = Reg(name) self.registers.append(reg) elif line.startswith('S_'): name = line[:line.find('(')] for it in reg.fields: if it.s_name == name: sys.exit('Duplicate field define: %s' % (name)) else: field = Field(reg, name) reg.fields.append(field) elif line.startswith('V_'): split = line.split() name = split[0] value = int(split[1], 0) for (n,v) in field.values: if n == name: sys.exit('Duplicate value define: name = ' + name) field.values.append((name, value)) elif line.startswith('PKT3_') and line.find('0x') != -1 and line.find('(') == -1: packets.append(line.split()[0]) # Copy values for corresponding fields from older ASICs if they were # not redefined for reg in self.registers: old_reg = False for field in reg.fields: if len(field.values) > 0: continue if old_reg is False: for old_reg in itertools.chain( *(asic.registers for asic in reversed(older_asics))): if old_reg.name == reg.name: break else: old_reg = None if old_reg is not None: for old_field in old_reg.fields: if old_field.name == field.name: field.values = old_field.values break # Copy fields to indexed registers which have their fields only defined # at register index 0. # For example, copy fields from CB_COLOR0_INFO to CB_COLORn_INFO, n > 0. match_number = re.compile('[0-9]+') reg_dict = dict() # Create a dict of registers with fields and '0' in their name for reg in self.registers: if len(reg.fields) and reg.name.find('0') != -1: reg_dict[reg.name] = reg # Assign fields for reg in self.registers: if not len(reg.fields): reg0 = reg_dict.get(match_number.sub('0', reg.name)) if reg0 != None: reg.fields = reg0.fields def write_tables(asics, packets): strings = StringTable() strings_offsets = IntTable("int") fields = FieldTable() print('/* This file is autogenerated by sid_tables.py from sid.h. Do not edit directly. */') print() print(CopyRight.strip()) print(''' #ifndef SID_TABLES_H #define SID_TABLES_H struct si_field { unsigned name_offset; unsigned mask; unsigned num_values; unsigned values_offset; /* offset into sid_strings_offsets */ }; struct si_reg { unsigned name_offset; unsigned offset; unsigned num_fields; unsigned fields_offset; }; struct si_packet3 { unsigned name_offset; unsigned op; }; ''') print('static const struct si_packet3 packet3_table[] = {') for pkt in packets: print('\t{%s, %s},' % (strings.add(pkt[5:]), pkt)) print('};') print() regs = {} for asic in asics: print('static const struct si_reg %s_reg_table[] = {' % (asic.name)) for reg in asic.registers: # Only output a register that was changed or added relative to # the previous generation previous = regs.get(reg.r_name, None) if previous == reg: continue if len(reg.fields): print('\t{%s, %s, %s, %s},' % (strings.add(reg.name), reg.r_name, len(reg.fields), fields.add(reg.fields))) else: print('\t{%s, %s},' % (strings.add(reg.name), reg.r_name)) regs[reg.r_name] = reg print('};') print() fields.emit(sys.stdout, strings, strings_offsets) print() strings.emit(sys.stdout, "sid_strings") print() strings_offsets.emit(sys.stdout, "sid_strings_offsets") print() print('#endif') def main(): asics = [] packets = [] for arg in sys.argv[1:]: basename = os.path.basename(arg) m = re.match(r'(.*)\.h', basename) asic = Asic(m.group(1)) with open(arg) as filp: asic.parse(filp, packets, asics) asics.append(asic) write_tables(asics, packets) if __name__ == '__main__': main() # kate: space-indent on; indent-width 4; replace-tabs on;