gem5/util/cpt_upgraders/arm-sysreg-mapping-ns.py

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# Copyright (c) 2016 ARM Limited
# All rights reserved
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder. You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# reflect updated register mappings for ARM ISA
def upgrader(cpt):
if cpt.get('root','isa') == 'arm':
for sec in cpt.sections():
import re
# Search for all ISA sections
if re.search('.*sys.*\.cpu.*\.isa\d*$', sec):
mr = cpt.get(sec, 'miscRegs').split()
if int(mr[0]) & 16 == 0: # CPSR reg width; 0 for AArch64
mr[112] = mr[111] # ACTLR_NS = ACTLR
mr[146] = mr[145] # ADFSR_NS = ADFSR
mr[149] = mr[148] # AIFSR_NS = AIFSR
mr[253] = mr[252] # AMAIR0_NS = AMAIR0
mr[289] = mr[288] # CNTP_CTL_NS = CNTP_CTL
mr[313] = mr[312] # CNTP_CVAL_NS = CNTP_CVAL
mr[286] = mr[285] # CNTP_TVAL_NS = CNTP_TVAL
mr[271] = mr[270] # CONTEXTIDR_NS = CONTEXTIDR
mr[104] = mr[103] # CSSELR_NS = CSSELR
mr[137] = mr[136] # DACR_NS = DACR
mr[155] = mr[154] # DFAR_NS = DFAR
mr[158] = mr[157] # IFAR_NS = IFAR
mr[143] = mr[142] # IFSR_NS = IFSR
mr[247] = mr[246] # NMRR_NS = NMRR
mr[166] = mr[165] # PAR_NS = PAR
mr[241] = mr[240] # PRRR_NS = PRRR
mr[ 4] = mr[424] # SPSR_SVC = SPSR_EL1
mr[ 7] = mr[435] # SPSR_HYP = SPSR_EL2
mr[ 5] = mr[442] # SPSR_MON = SPSR_EL3
mr[277] = mr[276] # TPIDRURO_NS = TPIDRURO
mr[280] = mr[279] # TPIDRPRW_NS = TPIDRPRW
mr[274] = mr[273] # TPIDRURW_NS = TPIDRURW
mr[132] = mr[131] # TTBCR_NS = TTBCR
mr[126] = mr[125] # TTBR0_NS = TTBR0
mr[129] = mr[128] # TTBR1_NS = TTBR1
mr[263] = mr[262] # VBAR_NS = VBAR
cpt.set(sec, 'miscRegs', ' '.join(str(x) for x in mr))