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Merge pull request #42 from ross144/main

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Scripts to run imperas
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David Harris 2023-01-31 14:31:10 -08:00 committed by GitHub
commit 5e607f7c82
3 changed files with 98 additions and 11 deletions
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54
bin/imperas-one-time.sh Executable file
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@ -0,0 +1,54 @@
#!/bin/bash
###########################################
## imperas-one-time.sh
##
## Written: Ross Thompson (ross1728@gmail.com) and Lee Moore (moore@imperas.com)
## Created: 31 January 2023
## Modified: 31 January 2023
##
## Purpose: One time setup script for running imperas.
##
## A component of the CORE-V-WALLY configurable RISC-V project.
##
## Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University
##
## SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
##
## Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file
## except in compliance with the License, or, at your option, the Apache License version 2.0. You
## may obtain a copy of the License at
##
## https://solderpad.org/licenses/SHL-2.1/
##
## Unless required by applicable law or agreed to in writing, any work distributed under the
## License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
## either express or implied. See the License for the specific language governing permissions
## and limitations under the License.
################################################################################################
IMP_HASH=56b1479
# clone the Imperas repo
cd $WALY
if [ ! -d external ]; then
mkdir -p external
fi
pushd external
if [ ! -d ImperasDV-HMC ]; then
git clone git@github.com:Imperas/ImperasDV-HMC.git
fi
pushd ImperasDV-HMC
git checkout $IMP_HASH
popd
popd
# Setup Imperas
source ${WALLY}/external/ImperasDV-HMC/Imperas/bin/setup.sh
setupImperas ${WALLY}/external/ImperasDV-HMC/Imperas
export IMPERAS_PERSONALITY=CPUMAN_DV_ASYNC
# setup QUESTA (Imperas only command, YMMV)
#svsetup -questa

32
pipelined/regression/sim-imperas Executable file
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@ -0,0 +1,32 @@
#!/bin/bash
###########################################
## imperas-one-time.sh
##
## Written: Ross Thompson (ross1728@gmail.com) and Lee Moore (moore@imperas.com)
## Created: 31 January 2023
## Modified: 31 January 2023
##
## Purpose: Run wally with imperas
##
## A component of the CORE-V-WALLY configurable RISC-V project.
##
## Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University
##
## SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
##
## Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file
## except in compliance with the License, or, at your option, the Apache License version 2.0. You
## may obtain a copy of the License at
##
## https://solderpad.org/licenses/SHL-2.1/
##
## Unless required by applicable law or agreed to in writing, any work distributed under the
## License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
## either express or implied. See the License for the specific language governing permissions
## and limitations under the License.
################################################################################################
IMPERAS_TOOLS=$(pwd)/imperas.ic \
OTHERFLAGS="+TRACE2LOG_ENABLE=1 VERBOSE=1" \
TESTDIR=${WALLY}/external/ImperasDV-HMC/tests/riscof/work/riscv-arch-test/rv64i_m/F/src/fadd_b1-01.S \
vsim -c -do "do wally-pipelined-imperas.do rv64gc"

23
pipelined/src/ifu/bpred/RAsPredictor.sv → pipelined/src/ifu/bpred/RASPredictor.sv
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@ -52,21 +52,22 @@ module RASPredictor #(parameter int StackSize = 16 )(
logic IncrRepairD, DecRepairD;
logic DecrementPtr;
logic FlushedRetDE;
logic WrongPredRetD;
assign PopF = PredInstrClassF[2] & ~StallD & ~FlushD;
assign RepairD = ((WrongPredInstrClassD[2]) & ~StallE & ~FlushE) | // Wrong class undo increment or decrement.
(~StallE & FlushE & InstrClassD[2]) | // ret in decode flushed
(~StallM & FlushM & InstrClassE[2]) ; // ret in execution flushed
assign IncrRepairD = (~StallE & FlushE & InstrClassD[2]) | // ret in decode flushed
(~StallM & FlushM & InstrClassE[2]) | // ret in execution flushed
(WrongPredInstrClassD[2] & ~InstrClassD[2] & ~StallE & ~FlushE); // Guessed it was a ret, but its not
assign DecRepairD = (WrongPredInstrClassD[2] & InstrClassD[2] & ~StallE & ~FlushE); // Guessed non ret but is a ret.
assign PushE = InstrClassE[3] & ~StallM & ~FlushM;
assign WrongPredRetD = (WrongPredInstrClassD[2]) & ~StallE & ~FlushE;
assign FlushedRetDE = (~StallE & FlushE & InstrClassD[2]) | (~StallM & FlushM & InstrClassE[2]); // flushed ret
assign RepairD = WrongPredRetD | FlushedRetDE ;
assign IncrRepairD = FlushedRetDE | (WrongPredRetD & ~InstrClassD[2]); // Guessed it was a ret, but its not
assign DecRepairD = WrongPredRetD & InstrClassD[2]; // Guessed non ret but is a ret.
assign CounterEn = PopF | PushE | RepairD;
assign DecrementPtr = (PopF | DecRepairD) & ~IncrRepairD;