1#!/usr/bin/env python3 2 3## 4## Copyright(c) 2019-2021 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_part1(tag): def_helper_size += 1 86 if hex_common.need_slot(tag): def_helper_size += 1 87 f.write('DEF_HELPER_%s(%s' % (def_helper_size, tag)) 88 ## The return type is void 89 f.write(', void' ) 90 else: 91 def_helper_size = len(regs)+len(imms)+numscalarreadwrite 92 if hex_common.need_part1(tag): def_helper_size += 1 93 if hex_common.need_slot(tag): def_helper_size += 1 94 f.write('DEF_HELPER_%s(%s' % (def_helper_size, tag)) 95 96 ## Generate the qemu DEF_HELPER type for each result 97 i=0 98 for regtype,regid,toss,numregs in regs: 99 if (hex_common.is_written(regid)): 100 gen_def_helper_opn(f, tag, regtype, regid, toss, numregs, i) 101 i += 1 102 103 ## Put the env between the outputs and inputs 104 f.write(', env' ) 105 i += 1 106 107 ## Generate the qemu type for each input operand (regs and immediates) 108 for regtype,regid,toss,numregs in regs: 109 if (hex_common.is_read(regid)): 110 gen_def_helper_opn(f, tag, regtype, regid, toss, numregs, i) 111 i += 1 112 for immlett,bits,immshift in imms: 113 f.write(", s32") 114 115 ## Add the arguments for the instruction slot and part1 (if needed) 116 if hex_common.need_slot(tag): f.write(', i32' ) 117 if hex_common.need_part1(tag): f.write(' , i32' ) 118 f.write(')\n') 119 120def main(): 121 hex_common.read_semantics_file(sys.argv[1]) 122 hex_common.read_attribs_file(sys.argv[2]) 123 hex_common.read_overrides_file(sys.argv[3]) 124 hex_common.calculate_attribs() 125 tagregs = hex_common.get_tagregs() 126 tagimms = hex_common.get_tagimms() 127 128 with open(sys.argv[4], 'w') as f: 129 for tag in hex_common.tags: 130 ## Skip the priv instructions 131 if ( "A_PRIV" in hex_common.attribdict[tag] ) : 132 continue 133 ## Skip the guest instructions 134 if ( "A_GUEST" in hex_common.attribdict[tag] ) : 135 continue 136 ## Skip the diag instructions 137 if ( tag == "Y6_diag" ) : 138 continue 139 if ( tag == "Y6_diag0" ) : 140 continue 141 if ( tag == "Y6_diag1" ) : 142 continue 143 144 if ( hex_common.skip_qemu_helper(tag) ): 145 continue 146 147 gen_helper_prototype(f, tag, tagregs, tagimms) 148 149if __name__ == "__main__": 150 main() 151