mirror of
https://github.com/tillitis/tillitis-key1.git
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Add place and route script
Run multiple threads of nextpnr-ice40 to find a seed that gives a layout that meets timing.
This commit is contained in:
Jonas Thörnblad
parent
8af048fb9a
commit
c6e8b6930c
238
hw/application_fpga/tools/run_pnr.sh
Executable file
238
hw/application_fpga/tools/run_pnr.sh
Executable file
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#!/bin/bash
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help() {
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echo "Usage: $(basename $0) [OPTION]"
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echo "Run multiple place and route threads with nextpnr-ice40"
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echo ""
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echo " --debug Debugging mode, output all data from nextpnr-ice40"
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echo " --help Help, display this help and exit"
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echo " --freq <frequency> Set target frequency for design in MHz (might be overridden from value in synthesis file)"
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echo " --log-file <file> Set log output filename (default: $LOG_FILE)"
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echo " --out-file <file> Set place and route output filename (default: $OUT_FILE)"
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echo " --package <type> Set package type (default: $PACKAGE)"
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echo " --pin-file <file> Set pin file to use (default: $PIN_FILE)"
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echo " --synth-file <file> Set synthesis file to use (default: $SYNTH_FILE)"
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echo " --timeout '<time>[SUFFIX]' Set time to run before script is killed"
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echo " --threads <number> Set number of threads to run (default: $THREADS, max: $(nproc))"
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echo " SUFFIX can be 's' for seconds, 'm' for minutes, 'h' for hours."
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echo " Given two or more arguments, time is sum of the values."
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}
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export TOP_DIR=$(pwd)
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export LOCK_FILE=$(mktemp -u -p $TOP_DIR)
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export LOCK_DIR=$(mktemp -u -p $TOP_DIR)
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export LOG_FILE=../application_fpga_par.txt
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export OUT_FILE=../application_fpga_par.json
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export PACKAGE=sg48
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export PIN_FILE=../data/application_fpga_tk1.pcf
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export SYNTH_FILE=../synth.json
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export PNR_DEBUG=/dev/null
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# Get number of available CPU threads
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THREADS=$(nproc --ignore=1)
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# Array to store process IDs
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pids=()
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# Trap ctrl-c and call ctrl_c()
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trap 'ctrl_c' SIGINT
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cleanup() {
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echo "Running cleanup..."
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# Kill all child processes of the script
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pstree -p "$$" | grep -o '([0-9]\+)' | grep -o '[0-9]\+' | grep -v "$$" | xargs kill -9 >& /dev/null
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# Do directory cleanup
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rm -rf $TOP_DIR/tmp.*
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echo "Cleanup finished."
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}
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ctrl_c() {
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echo ""
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cleanup
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}
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terminate_script() {
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echo -n "Time limit reached!"
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kill -SIGINT $$
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}
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start_thread() {
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OUT_DIR="$(mktemp -d -p $TOP_DIR)" || { echo "Failed to create tempdir"; exit 1; }
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cd $OUT_DIR
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echo "Starting nextpnr run on PID = $BASHPID, tempdir = $OUT_DIR"
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while true; do
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nextpnr-ice40 \
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--log $LOG_FILE \
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--randomize-seed \
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--freq $FREQ \
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--ignore-loops \
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--up5k \
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--package $PACKAGE \
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--json $SYNTH_FILE_PATH/$SYNTH_FILE \
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--pcf $PIN_FILE_PATH/$PIN_FILE \
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--write $OUT_FILE >& $PNR_DEBUG
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exit_code=$?
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if [ $exit_code -eq 0 ]; then
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mkdir $LOCK_DIR 2>/dev/null
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if [ $? -ne 0 ]; then
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return 1;
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fi
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(
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flock -x 200
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SEED=$(grep "Generated random seed" $LOG_FILE | awk '{print $5}' | awk --bignum '{printf "%20d\n", $0}')
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MAX_CLK_PLACE=$(grep "Max frequency for clock" $LOG_FILE | awk 'NR==1{print $7}') # First occurence
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MAX_CLK_ROUTE=$(grep "Max frequency for clock" $LOG_FILE | awk 'NR==2{print $7}') # Second occurence
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TARGET_CLK=$(grep "Max frequency for clock" $LOG_FILE | awk 'NR==1{print $11}') # First occurence
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echo -n "PASS! Seed = $SEED, Max frequency for clock: place = $MAX_CLK_PLACE MHz, "
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echo "route = $MAX_CLK_ROUTE MHz, target = $TARGET_CLK MHz"
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cp -v $OUT_FILE $OUT_FILE_PATH/
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cp -v $LOG_FILE $LOG_FILE_PATH/
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) 200>$LOCK_FILE
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return 0
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else
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(
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flock -x 200
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SEED=$(grep "Generated random seed" $LOG_FILE | awk '{print $5}' | awk --bignum '{printf "%20d\n", $0}')
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MAX_CLK_PLACE=$(grep "Max frequency for clock" $LOG_FILE | awk 'NR==1{print $7}') # First occurence
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MAX_CLK_ROUTE=$(grep "Max frequency for clock" $LOG_FILE | awk 'NR==2{print $7}') # Second occurence
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TARGET_CLK=$(grep "Max frequency for clock" $LOG_FILE | awk 'NR==1{print $11}') # First occurence
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echo -n "FAIL! Seed = $SEED, Max frequency for clock: place = $MAX_CLK_PLACE MHz, "
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echo "route = $MAX_CLK_ROUTE MHz, target = $TARGET_CLK MHz, restarting..."
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rm -rf $OUT_DIR/*
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) 200>$LOCK_FILE
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fi
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done
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}
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## Check flags
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OPTS=$(getopt -o "" --long "\
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debug,\
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freq:,\
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log-file:,\
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out-file:,\
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package:,\
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pin-file:\
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synth-file:,\
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timeout:,\
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threads:,\
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help,\
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verbose" -n "$PROGNAME" -- "$@")
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if [ $? != 0 ]
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then
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echo "Error in command line arguments." >&2;
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help;
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exit 1;
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fi
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eval set -- "$OPTS"
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while true; do
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case "$1" in
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--debug ) PNR_DEBUG=1; shift ;;
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--freq ) FREQ="$2"; shift 2 ;;
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--log-file ) LOG_FILE="$2"; shift 2 ;;
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--out-file ) OUT_FILE="$2"; shift 2 ;;
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--package ) PACKAGE="$2"; shift 2 ;;
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--pin-file ) PIN_FILE="$2"; shift 2 ;;
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--synth-file ) SYNTH_FILE="$2"; shift 2 ;;
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--timeout ) TIMEOUT="$2"; shift 2 ;;
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--threads ) THREADS="$2"; shift 2 ;;
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--help ) help; exit; ;;
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--verbose ) VERBOSE=$((VERBOSE + 1)); shift ;;
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-- ) shift; break ;;
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* ) break ;;
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esac
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done
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export LOG_FILE_PATH=$(realpath $(dirname $LOG_FILE))
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export LOG_FILE=$(basename $LOG_FILE)
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export OUT_FILE_PATH=$(realpath $(dirname $OUT_FILE))
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export OUT_FILE=$(basename $OUT_FILE)
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export PIN_FILE_PATH=$(realpath $(dirname $PIN_FILE))
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export PIN_FILE=$(basename $PIN_FILE)
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export SYNTH_FILE_PATH=$(realpath $(dirname $SYNTH_FILE))
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export SYNTH_FILE=$(basename $SYNTH_FILE)
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if [ ! -f "$SYNTH_FILE_PATH/$SYNTH_FILE" ]; then
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echo "No $SYNTH_FILE file found. Did you run Yosys?"
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exit 1
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fi
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if [ -f "$OUT_FILE_PATH/$OUT_FILE" ]; then
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echo "Place and route output file $OUT_FILE_PATH/$OUT_FILE found. Remove before starting again!"
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exit 1
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fi
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if [ -f "$LOG_FILE_PATH/$LOG_FILE" ]; then
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echo "Log file $LOG_FILE_PATH/$LOG_FILE found. Remove before starting again!"
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exit 1
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fi
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if [ -z "$FREQ" ]; then
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echo "No target frequency set!"
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exit 1
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else
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export FREQ
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fi
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if [ -n "$TIMEOUT" ]; then
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echo "Timeout: $TIMEOUT"
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# Start background timer
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( sleep ${TIMEOUT[@]} && terminate_script ) &
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if ! ps -p $! > /dev/null; then
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exit 1
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fi
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fi
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echo "Threads: $THREADS"
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echo "Target frequency: $FREQ MHz (might be overridden from value in synthesis file)"
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echo "Synthesis file: $SYNTH_FILE_PATH/$SYNTH_FILE"
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echo "Pin file: $PIN_FILE_PATH/$PIN_FILE"
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echo "Package: $PACKAGE"
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echo "Out file: $OUT_FILE_PATH/$OUT_FILE"
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echo "Log file: $LOG_FILE_PATH/$LOG_FILE"
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echo ""
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echo "Lock file: $LOCK_FILE"
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echo "Lock dir: $LOCK_DIR"
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echo ""
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# Start threads equal to the number of CPU cores
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for i in $(seq 1 $THREADS); do
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# Start the thread in the background
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start_thread &
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# Collect the PID
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pids+=($!)
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done
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wait_for_success() {
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while true; do
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# Check for exit 0 status of all collected PID processes
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if wait -n ${pids[@]}; then
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cleanup
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echo "Exiting..."
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exit 0
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else
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echo "Exiting..."
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exit 1
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fi
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done
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}
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# Wait for all threads
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wait_for_success
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