1#!/usr/bin/env python3 2 3## 4## Copyright(c) 2019-2022 Qualcomm Innovation Center, Inc. All Rights Reserved. 5## 6## This program is free software; you can redistribute it and/or modify 7## it under the terms of the GNU General Public License as published by 8## the Free Software Foundation; either version 2 of the License, or 9## (at your option) any later version. 10## 11## This program is distributed in the hope that it will be useful, 12## but WITHOUT ANY WARRANTY; without even the implied warranty of 13## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14## GNU General Public License for more details. 15## 16## You should have received a copy of the GNU General Public License 17## along with this program; if not, see <http://www.gnu.org/licenses/>. 18## 19 20import sys 21import re 22import string 23import hex_common 24 25## 26## Helpers for gen_helper_prototype 27## 28def_helper_types = { 29 'N' : 's32', 30 'O' : 's32', 31 'P' : 's32', 32 'M' : 's32', 33 'C' : 's32', 34 'R' : 's32', 35 'V' : 'ptr', 36 'Q' : 'ptr' 37} 38 39def_helper_types_pair = { 40 'R' : 's64', 41 'C' : 's64', 42 'S' : 's64', 43 'G' : 's64', 44 'V' : 'ptr', 45 'Q' : 'ptr' 46} 47 48def gen_def_helper_opn(f, tag, regtype, regid, toss, numregs, i): 49 if (hex_common.is_pair(regid)): 50 f.write(", %s" % (def_helper_types_pair[regtype])) 51 elif (hex_common.is_single(regid)): 52 f.write(", %s" % (def_helper_types[regtype])) 53 else: 54 print("Bad register parse: ",regtype,regid,toss,numregs) 55 56## 57## Generate the DEF_HELPER prototype for an instruction 58## For A2_add: Rd32=add(Rs32,Rt32) 59## We produce: 60## DEF_HELPER_3(A2_add, s32, env, s32, s32) 61## 62def gen_helper_prototype(f, tag, tagregs, tagimms): 63 regs = tagregs[tag] 64 imms = tagimms[tag] 65 66 numresults = 0 67 numscalarresults = 0 68 numscalarreadwrite = 0 69 for regtype,regid,toss,numregs in regs: 70 if (hex_common.is_written(regid)): 71 numresults += 1 72 if (hex_common.is_scalar_reg(regtype)): 73 numscalarresults += 1 74 if (hex_common.is_readwrite(regid)): 75 if (hex_common.is_scalar_reg(regtype)): 76 numscalarreadwrite += 1 77 78 if (numscalarresults > 1): 79 ## The helper is bogus when there is more than one result 80 f.write('DEF_HELPER_1(%s, void, env)\n' % tag) 81 else: 82 ## Figure out how many arguments the helper will take 83 if (numscalarresults == 0): 84 def_helper_size = len(regs)+len(imms)+numscalarreadwrite+1 85 if hex_common.need_pkt_has_multi_cof(tag): def_helper_size += 1 86 if hex_common.need_part1(tag): def_helper_size += 1 87 if hex_common.need_slot(tag): def_helper_size += 1 88 if hex_common.need_PC(tag): def_helper_size += 1 89 if hex_common.helper_needs_next_PC(tag): def_helper_size += 1 90 f.write('DEF_HELPER_%s(%s' % (def_helper_size, tag)) 91 ## The return type is void 92 f.write(', void' ) 93 else: 94 def_helper_size = len(regs)+len(imms)+numscalarreadwrite 95 if hex_common.need_pkt_has_multi_cof(tag): def_helper_size += 1 96 if hex_common.need_part1(tag): def_helper_size += 1 97 if hex_common.need_slot(tag): def_helper_size += 1 98 if hex_common.need_PC(tag): def_helper_size += 1 99 if hex_common.helper_needs_next_PC(tag): def_helper_size += 1 100 f.write('DEF_HELPER_%s(%s' % (def_helper_size, tag)) 101 102 ## Generate the qemu DEF_HELPER type for each result 103 ## Iterate over this list twice 104 ## - Emit the scalar result 105 ## - Emit the vector result 106 i=0 107 for regtype,regid,toss,numregs in regs: 108 if (hex_common.is_written(regid)): 109 if (not hex_common.is_hvx_reg(regtype)): 110 gen_def_helper_opn(f, tag, regtype, regid, toss, numregs, i) 111 i += 1 112 113 ## Put the env between the outputs and inputs 114 f.write(', env' ) 115 i += 1 116 117 # Second pass 118 for regtype,regid,toss,numregs in regs: 119 if (hex_common.is_written(regid)): 120 if (hex_common.is_hvx_reg(regtype)): 121 gen_def_helper_opn(f, tag, regtype, regid, toss, numregs, i) 122 i += 1 123 124 ## Generate the qemu type for each input operand (regs and immediates) 125 for regtype,regid,toss,numregs in regs: 126 if (hex_common.is_read(regid)): 127 if (hex_common.is_hvx_reg(regtype) and 128 hex_common.is_readwrite(regid)): 129 continue 130 gen_def_helper_opn(f, tag, regtype, regid, toss, numregs, i) 131 i += 1 132 for immlett,bits,immshift in imms: 133 f.write(", s32") 134 135 ## Add the arguments for the instruction pkt_has_multi_cof, slot and 136 ## part1 (if needed) 137 if hex_common.need_pkt_has_multi_cof(tag): f.write(', i32') 138 if hex_common.need_PC(tag): f.write(', i32') 139 if hex_common.helper_needs_next_PC(tag): f.write(', i32') 140 if hex_common.need_slot(tag): f.write(', i32' ) 141 if hex_common.need_part1(tag): f.write(' , i32' ) 142 f.write(')\n') 143 144def main(): 145 hex_common.read_semantics_file(sys.argv[1]) 146 hex_common.read_attribs_file(sys.argv[2]) 147 hex_common.read_overrides_file(sys.argv[3]) 148 hex_common.read_overrides_file(sys.argv[4]) 149 ## Whether or not idef-parser is enabled is 150 ## determined by the number of arguments to 151 ## this script: 152 ## 153 ## 5 args. -> not enabled, 154 ## 6 args. -> idef-parser enabled. 155 ## 156 ## The 6:th arg. then holds a list of the successfully 157 ## parsed instructions. 158 is_idef_parser_enabled = len(sys.argv) > 6 159 if is_idef_parser_enabled: 160 hex_common.read_idef_parser_enabled_file(sys.argv[5]) 161 hex_common.calculate_attribs() 162 tagregs = hex_common.get_tagregs() 163 tagimms = hex_common.get_tagimms() 164 165 output_file = sys.argv[-1] 166 with open(output_file, 'w') as f: 167 for tag in hex_common.tags: 168 ## Skip the priv instructions 169 if ( "A_PRIV" in hex_common.attribdict[tag] ) : 170 continue 171 ## Skip the guest instructions 172 if ( "A_GUEST" in hex_common.attribdict[tag] ) : 173 continue 174 ## Skip the diag instructions 175 if ( tag == "Y6_diag" ) : 176 continue 177 if ( tag == "Y6_diag0" ) : 178 continue 179 if ( tag == "Y6_diag1" ) : 180 continue 181 182 if ( hex_common.skip_qemu_helper(tag) ): 183 continue 184 if ( hex_common.is_idef_parser_enabled(tag) ): 185 continue 186 187 gen_helper_prototype(f, tag, tagregs, tagimms) 188 189if __name__ == "__main__": 190 main() 191