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#!/bin/bash
set -e
read _ ip dev grade _ < <( echo $* | tr '_/' ' '; )
# rm -rf tab_${ip}_${dev}_${grade}
mkdir -p tab_${ip}_${dev}_${grade}
cd tab_${ip}_${dev}_${grade}
best_speed=99
speed=30
step=16
synth_case() {
if [ -f test_${1}.txt ]; then
echo "Reusing cached tab_${ip}_${dev}_${grade}/test_${1}."
return
fi
case "${dev}" in
xc7a) xl_device="xc7a15t-fgg484-${grade}" ;;
xc7k) xl_device="xc7k70t-fbg676-${grade}" ;;
xc7v) xl_device="xc7v585t-ffg1761-${grade}" ;;
xcku) xl_device="xcku035-fbva676-${grade}" ;;
xcvu) xl_device="xcvu065-ffvc1517-${grade}" ;;
esac
case "${dev}-${grade}" in
xcku-1) xl_device="${xl_device}-c" ;;
xcvu-1) xl_device="${xl_device}-i" ;;
xcku-?|xcvu-?) xl_device="${xl_device}-e" ;;
esac
cat > test_${1}.tcl <<- EOT
read_verilog ../tabtest.v
read_verilog ../../../picorv32.v
read_xdc test_${1}.xdc
synth_design -flatten_hierarchy full -part ${xl_device} -top top
opt_design -sweep -remap -propconst
opt_design -directive Explore
place_design -directive Explore
phys_opt_design -retime -rewire -critical_pin_opt -placement_opt -critical_cell_opt
route_design -directive Explore
place_design -post_place_opt
phys_opt_design -retime
route_design -directive NoTimingRelaxation
report_utilization
report_timing
EOT
cat > test_${1}.xdc <<- EOT
create_clock -period ${speed%?}.${speed#?} [get_ports clk]
EOT
echo "Running tab_${ip}_${dev}_${grade}/test_${1}.."
if ! $VIVADO -nojournal -log test_${1}.log -mode batch -source test_${1}.tcl > /dev/null 2>&1; then
cat test_${1}.log
exit 1
fi
mv test_${1}.log test_${1}.txt
}
countdown=2
while [ $countdown -gt 0 ]; do
synth_case $speed
if grep -q '^Slack.*(VIOLATED)' test_${speed}.txt; then
echo " tab_${ip}_${dev}_${grade}/test_${speed} VIOLATED"
[ $speed -eq 38 ] || step=$((step / 2))
speed=$((speed + step))
elif grep -q '^Slack.*(MET)' test_${speed}.txt; then
echo " tab_${ip}_${dev}_${grade}/test_${speed} MET"
[ $speed -lt $best_speed ] && best_speed=$speed
step=$((step / 2))
speed=$((speed - step))
else
echo "ERROR: No slack line found in $PWD/test_${speed}.txt!"
exit 1
fi
if [ $step -eq 0 ]; then
countdown=$((countdown - 1))
speed=$((best_speed - 2))
step=1
fi
done
echo "-----------------------"
echo "Best speed for tab_${ip}_${dev}_${grade}: $best_speed"
echo "-----------------------"
echo $best_speed > results.txt
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