mirror of https://gitlab.com/qemu-project/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
4.1 KiB
Python
135 lines
4.1 KiB
Python
#!/usr/bin/env python3
|
|
|
|
##
|
|
## Copyright(c) 2019-2024 Qualcomm Innovation Center, Inc. All Rights Reserved.
|
|
##
|
|
## This program is free software; you can redistribute it and/or modify
|
|
## it under the terms of the GNU General Public License as published by
|
|
## the Free Software Foundation; either version 2 of the License, or
|
|
## (at your option) any later version.
|
|
##
|
|
## This program is distributed in the hope that it will be useful,
|
|
## but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
## GNU General Public License for more details.
|
|
##
|
|
## You should have received a copy of the GNU General Public License
|
|
## along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
##
|
|
|
|
import sys
|
|
import re
|
|
import string
|
|
import hex_common
|
|
|
|
|
|
##
|
|
## Generate the TCG code to call the helper
|
|
## For A2_add: Rd32=add(Rs32,Rt32), { RdV=RsV+RtV;}
|
|
## We produce:
|
|
## int32_t HELPER(A2_add)(CPUHexagonState *env, int32_t RsV, int32_t RtV)
|
|
## {
|
|
## int32_t RdV = 0;
|
|
## { RdV=RsV+RtV;}
|
|
## return RdV;
|
|
## }
|
|
##
|
|
def gen_helper_function(f, tag, tagregs, tagimms):
|
|
regs = tagregs[tag]
|
|
imms = tagimms[tag]
|
|
|
|
ret_type = hex_common.helper_ret_type(tag, regs).func_arg
|
|
|
|
declared = []
|
|
for arg in hex_common.helper_args(tag, regs, imms):
|
|
declared.append(arg.func_arg)
|
|
|
|
arguments = ", ".join(declared)
|
|
f.write(f"{ret_type} HELPER({tag})({arguments})\n")
|
|
f.write("{\n")
|
|
if hex_common.need_ea(tag):
|
|
f.write(hex_common.code_fmt(f"""\
|
|
uint32_t EA;
|
|
"""))
|
|
## Declare the return variable
|
|
if not hex_common.is_predicated(tag):
|
|
for regtype, regid in regs:
|
|
reg = hex_common.get_register(tag, regtype, regid)
|
|
if reg.is_writeonly() and not reg.is_hvx_reg():
|
|
f.write(hex_common.code_fmt(f"""\
|
|
{reg.helper_arg_type()} {reg.helper_arg_name()} = 0;
|
|
"""))
|
|
|
|
## Print useful information about HVX registers
|
|
for regtype, regid in regs:
|
|
reg = hex_common.get_register(tag, regtype, regid)
|
|
if reg.is_hvx_reg():
|
|
reg.helper_hvx_desc(f)
|
|
|
|
if hex_common.need_slot(tag):
|
|
if "A_LOAD" in hex_common.attribdict[tag]:
|
|
f.write(hex_common.code_fmt(f"""\
|
|
bool pkt_has_store_s1 = slotval & 0x1;
|
|
"""))
|
|
f.write(hex_common.code_fmt(f"""\
|
|
uint32_t slot = slotval >> 1;
|
|
"""))
|
|
|
|
if "A_FPOP" in hex_common.attribdict[tag]:
|
|
f.write(hex_common.code_fmt(f"""\
|
|
arch_fpop_start(env);
|
|
"""))
|
|
|
|
f.write(hex_common.code_fmt(f"""\
|
|
{hex_common.semdict[tag]}
|
|
"""))
|
|
|
|
if "A_FPOP" in hex_common.attribdict[tag]:
|
|
f.write(hex_common.code_fmt(f"""\
|
|
arch_fpop_end(env);
|
|
"""))
|
|
|
|
## Return the scalar result
|
|
for regtype, regid in regs:
|
|
reg = hex_common.get_register(tag, regtype, regid)
|
|
if reg.is_written() and not reg.is_hvx_reg():
|
|
f.write(hex_common.code_fmt(f"""\
|
|
return {reg.helper_arg_name()};
|
|
"""))
|
|
|
|
f.write("}\n\n")
|
|
## End of the helper definition
|
|
|
|
|
|
def main():
|
|
hex_common.read_common_files()
|
|
tagregs = hex_common.get_tagregs()
|
|
tagimms = hex_common.get_tagimms()
|
|
|
|
output_file = sys.argv[-1]
|
|
with open(output_file, "w") as f:
|
|
for tag in hex_common.tags:
|
|
## Skip the priv instructions
|
|
if "A_PRIV" in hex_common.attribdict[tag]:
|
|
continue
|
|
## Skip the guest instructions
|
|
if "A_GUEST" in hex_common.attribdict[tag]:
|
|
continue
|
|
## Skip the diag instructions
|
|
if tag == "Y6_diag":
|
|
continue
|
|
if tag == "Y6_diag0":
|
|
continue
|
|
if tag == "Y6_diag1":
|
|
continue
|
|
if hex_common.skip_qemu_helper(tag):
|
|
continue
|
|
if hex_common.is_idef_parser_enabled(tag):
|
|
continue
|
|
|
|
gen_helper_function(f, tag, tagregs, tagimms)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|