mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-23 11:39:53 +00:00
d51bcabec1
Build the infrastructure to create overrides for HVX instructions. We create a new empty file (gen_tcg_hvx.h) that will be populated in subsequent patches. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
316 lines
11 KiB
Python
Executable File
316 lines
11 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
##
|
|
## Copyright(c) 2019-2021 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
|
|
|
|
##
|
|
## Helpers for gen_helper_function
|
|
##
|
|
def gen_decl_ea(f):
|
|
f.write(" uint32_t EA;\n")
|
|
|
|
def gen_helper_return_type(f,regtype,regid,regno):
|
|
if regno > 1 : f.write(", ")
|
|
f.write("int32_t")
|
|
|
|
def gen_helper_return_type_pair(f,regtype,regid,regno):
|
|
if regno > 1 : f.write(", ")
|
|
f.write("int64_t")
|
|
|
|
def gen_helper_arg(f,regtype,regid,regno):
|
|
if regno > 0 : f.write(", " )
|
|
f.write("int32_t %s%sV" % (regtype,regid))
|
|
|
|
def gen_helper_arg_new(f,regtype,regid,regno):
|
|
if regno >= 0 : f.write(", " )
|
|
f.write("int32_t %s%sN" % (regtype,regid))
|
|
|
|
def gen_helper_arg_pair(f,regtype,regid,regno):
|
|
if regno >= 0 : f.write(", ")
|
|
f.write("int64_t %s%sV" % (regtype,regid))
|
|
|
|
def gen_helper_arg_ext(f,regtype,regid,regno):
|
|
if regno > 0 : f.write(", ")
|
|
f.write("void *%s%sV_void" % (regtype,regid))
|
|
|
|
def gen_helper_arg_ext_pair(f,regtype,regid,regno):
|
|
if regno > 0 : f.write(", ")
|
|
f.write("void *%s%sV_void" % (regtype,regid))
|
|
|
|
def gen_helper_arg_opn(f,regtype,regid,i,tag):
|
|
if (hex_common.is_pair(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_arg_ext_pair(f,regtype,regid,i)
|
|
else:
|
|
gen_helper_arg_pair(f,regtype,regid,i)
|
|
elif (hex_common.is_single(regid)):
|
|
if hex_common.is_old_val(regtype, regid, tag):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_arg_ext(f,regtype,regid,i)
|
|
else:
|
|
gen_helper_arg(f,regtype,regid,i)
|
|
elif hex_common.is_new_val(regtype, regid, tag):
|
|
gen_helper_arg_new(f,regtype,regid,i)
|
|
else:
|
|
print("Bad register parse: ",regtype,regid,toss,numregs)
|
|
else:
|
|
print("Bad register parse: ",regtype,regid,toss,numregs)
|
|
|
|
def gen_helper_arg_imm(f,immlett):
|
|
f.write(", int32_t %s" % (hex_common.imm_name(immlett)))
|
|
|
|
def gen_helper_dest_decl(f,regtype,regid,regno,subfield=""):
|
|
f.write(" int32_t %s%sV%s = 0;\n" % \
|
|
(regtype,regid,subfield))
|
|
|
|
def gen_helper_dest_decl_pair(f,regtype,regid,regno,subfield=""):
|
|
f.write(" int64_t %s%sV%s = 0;\n" % \
|
|
(regtype,regid,subfield))
|
|
|
|
def gen_helper_dest_decl_ext(f,regtype,regid):
|
|
if (regtype == "Q"):
|
|
f.write(" /* %s%sV is *(MMQReg *)(%s%sV_void) */\n" % \
|
|
(regtype,regid,regtype,regid))
|
|
else:
|
|
f.write(" /* %s%sV is *(MMVector *)(%s%sV_void) */\n" % \
|
|
(regtype,regid,regtype,regid))
|
|
|
|
def gen_helper_dest_decl_ext_pair(f,regtype,regid,regno):
|
|
f.write(" /* %s%sV is *(MMVectorPair *))%s%sV_void) */\n" % \
|
|
(regtype,regid,regtype, regid))
|
|
|
|
def gen_helper_dest_decl_opn(f,regtype,regid,i):
|
|
if (hex_common.is_pair(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_dest_decl_ext_pair(f,regtype,regid, i)
|
|
else:
|
|
gen_helper_dest_decl_pair(f,regtype,regid,i)
|
|
elif (hex_common.is_single(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_dest_decl_ext(f,regtype,regid)
|
|
else:
|
|
gen_helper_dest_decl(f,regtype,regid,i)
|
|
else:
|
|
print("Bad register parse: ",regtype,regid,toss,numregs)
|
|
|
|
def gen_helper_src_var_ext(f,regtype,regid):
|
|
if (regtype == "Q"):
|
|
f.write(" /* %s%sV is *(MMQReg *)(%s%sV_void) */\n" % \
|
|
(regtype,regid,regtype,regid))
|
|
else:
|
|
f.write(" /* %s%sV is *(MMVector *)(%s%sV_void) */\n" % \
|
|
(regtype,regid,regtype,regid))
|
|
|
|
def gen_helper_src_var_ext_pair(f,regtype,regid,regno):
|
|
f.write(" /* %s%sV%s is *(MMVectorPair *)(%s%sV%s_void) */\n" % \
|
|
(regtype,regid,regno,regtype,regid,regno))
|
|
|
|
def gen_helper_return(f,regtype,regid,regno):
|
|
f.write(" return %s%sV;\n" % (regtype,regid))
|
|
|
|
def gen_helper_return_pair(f,regtype,regid,regno):
|
|
f.write(" return %s%sV;\n" % (regtype,regid))
|
|
|
|
def gen_helper_dst_write_ext(f,regtype,regid):
|
|
return
|
|
|
|
def gen_helper_dst_write_ext_pair(f,regtype,regid):
|
|
return
|
|
|
|
def gen_helper_return_opn(f, regtype, regid, i):
|
|
if (hex_common.is_pair(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_dst_write_ext_pair(f,regtype,regid)
|
|
else:
|
|
gen_helper_return_pair(f,regtype,regid,i)
|
|
elif (hex_common.is_single(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_dst_write_ext(f,regtype,regid)
|
|
else:
|
|
gen_helper_return(f,regtype,regid,i)
|
|
else:
|
|
print("Bad register parse: ",regtype,regid,toss,numregs)
|
|
|
|
##
|
|
## 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)
|
|
## {
|
|
## uint32_t slot __attribute__(unused)) = 4;
|
|
## int32_t RdV = 0;
|
|
## { RdV=RsV+RtV;}
|
|
## COUNT_HELPER(A2_add);
|
|
## return RdV;
|
|
## }
|
|
##
|
|
def gen_helper_function(f, tag, tagregs, tagimms):
|
|
regs = tagregs[tag]
|
|
imms = tagimms[tag]
|
|
|
|
numresults = 0
|
|
numscalarresults = 0
|
|
numscalarreadwrite = 0
|
|
for regtype,regid,toss,numregs in regs:
|
|
if (hex_common.is_written(regid)):
|
|
numresults += 1
|
|
if (hex_common.is_scalar_reg(regtype)):
|
|
numscalarresults += 1
|
|
if (hex_common.is_readwrite(regid)):
|
|
if (hex_common.is_scalar_reg(regtype)):
|
|
numscalarreadwrite += 1
|
|
|
|
if (numscalarresults > 1):
|
|
## The helper is bogus when there is more than one result
|
|
f.write("void HELPER(%s)(CPUHexagonState *env) { BOGUS_HELPER(%s); }\n"
|
|
% (tag, tag))
|
|
else:
|
|
## The return type of the function is the type of the destination
|
|
## register (if scalar)
|
|
i=0
|
|
for regtype,regid,toss,numregs in regs:
|
|
if (hex_common.is_written(regid)):
|
|
if (hex_common.is_pair(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
continue
|
|
else:
|
|
gen_helper_return_type_pair(f,regtype,regid,i)
|
|
elif (hex_common.is_single(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
continue
|
|
else:
|
|
gen_helper_return_type(f,regtype,regid,i)
|
|
else:
|
|
print("Bad register parse: ",regtype,regid,toss,numregs)
|
|
i += 1
|
|
|
|
if (numscalarresults == 0):
|
|
f.write("void")
|
|
f.write(" HELPER(%s)(CPUHexagonState *env" % tag)
|
|
|
|
## Arguments include the vector destination operands
|
|
i = 1
|
|
for regtype,regid,toss,numregs in regs:
|
|
if (hex_common.is_written(regid)):
|
|
if (hex_common.is_pair(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_arg_ext_pair(f,regtype,regid,i)
|
|
else:
|
|
continue
|
|
elif (hex_common.is_single(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_arg_ext(f,regtype,regid,i)
|
|
else:
|
|
# This is the return value of the function
|
|
continue
|
|
else:
|
|
print("Bad register parse: ",regtype,regid,toss,numregs)
|
|
i += 1
|
|
|
|
## Arguments to the helper function are the source regs and immediates
|
|
for regtype,regid,toss,numregs in regs:
|
|
if (hex_common.is_read(regid)):
|
|
if (hex_common.is_hvx_reg(regtype) and
|
|
hex_common.is_readwrite(regid)):
|
|
continue
|
|
gen_helper_arg_opn(f,regtype,regid,i,tag)
|
|
i += 1
|
|
for immlett,bits,immshift in imms:
|
|
gen_helper_arg_imm(f,immlett)
|
|
i += 1
|
|
|
|
if hex_common.need_slot(tag):
|
|
if i > 0: f.write(", ")
|
|
f.write("uint32_t slot")
|
|
i += 1
|
|
if hex_common.need_part1(tag):
|
|
if i > 0: f.write(", ")
|
|
f.write("uint32_t part1")
|
|
f.write(")\n{\n")
|
|
if (not hex_common.need_slot(tag)):
|
|
f.write(" uint32_t slot __attribute__((unused)) = 4;\n" )
|
|
if hex_common.need_ea(tag): gen_decl_ea(f)
|
|
## Declare the return variable
|
|
i=0
|
|
for regtype,regid,toss,numregs in regs:
|
|
if (hex_common.is_writeonly(regid)):
|
|
gen_helper_dest_decl_opn(f,regtype,regid,i)
|
|
i += 1
|
|
|
|
for regtype,regid,toss,numregs in regs:
|
|
if (hex_common.is_read(regid)):
|
|
if (hex_common.is_pair(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_src_var_ext_pair(f,regtype,regid,i)
|
|
elif (hex_common.is_single(regid)):
|
|
if (hex_common.is_hvx_reg(regtype)):
|
|
gen_helper_src_var_ext(f,regtype,regid)
|
|
else:
|
|
print("Bad register parse: ",regtype,regid,toss,numregs)
|
|
|
|
if 'A_FPOP' in hex_common.attribdict[tag]:
|
|
f.write(' arch_fpop_start(env);\n');
|
|
|
|
f.write(" %s\n" % hex_common.semdict[tag])
|
|
|
|
if 'A_FPOP' in hex_common.attribdict[tag]:
|
|
f.write(' arch_fpop_end(env);\n');
|
|
|
|
## Save/return the return variable
|
|
for regtype,regid,toss,numregs in regs:
|
|
if (hex_common.is_written(regid)):
|
|
gen_helper_return_opn(f, regtype, regid, i)
|
|
f.write("}\n\n")
|
|
## End of the helper definition
|
|
|
|
def main():
|
|
hex_common.read_semantics_file(sys.argv[1])
|
|
hex_common.read_attribs_file(sys.argv[2])
|
|
hex_common.read_overrides_file(sys.argv[3])
|
|
hex_common.read_overrides_file(sys.argv[4])
|
|
hex_common.calculate_attribs()
|
|
tagregs = hex_common.get_tagregs()
|
|
tagimms = hex_common.get_tagimms()
|
|
|
|
with open(sys.argv[5], '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
|
|
|
|
gen_helper_function(f, tag, tagregs, tagimms)
|
|
|
|
if __name__ == "__main__":
|
|
main()
|