From 09b3d51015186a3a9f1dbc9e25eae1bdc948f999 Mon Sep 17 00:00:00 2001
From: "(Tim) Efthimis Kritikos" <efkf@firemail.cc>
Date: Thu, 9 Nov 2023 23:09:50 +0000
Subject: [PATCH] Added statistics to place&route

---
 system/Makefile              |  5 ++--
 tools/parse_nextpnr_stats.sh | 49 ++++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 2 deletions(-)
 create mode 100755 tools/parse_nextpnr_stats.sh

diff --git a/system/Makefile b/system/Makefile
index b426cba..e8ca364 100644
--- a/system/Makefile
+++ b/system/Makefile
@@ -66,7 +66,7 @@ else
 $(error invalid ECP5 device ${ECP5_DEVICE})
 endif
 
-ECP5_TARGETS=synth_ecp5.json synth_ecp5_out.config synth_ecp5.bit synth_ecp5.dfu
+ECP5_TARGETS=synth_ecp5.json synth_ecp5_out.config synth_ecp5.bit synth_ecp5.dfu synth_pnr_report.json
 ECP5_TARGETS+=abc.history # created from yosys
 
 EXTRA_SYNTHESIS_SOURCES=peripherals/I2C_driver.v peripherals/ascii_to_HD44780_driver.v peripherals/pcf8574_for_HD44780.v
@@ -78,7 +78,8 @@ synth_ecp5.json: ${SOURCES} ${TOP_LEVEL_SOURCE} fpga_config/${FPGA_BOARD}/fpga_t
 
 synth_ecp5_out.config:synth_ecp5.json
 	${QUIET_NEXTPNR}
-	${Q} nextpnr-ecp5 --Werror -q --json $< --textcfg $@ ${NEXTPNR_ECP5_DEV} --package ${ECP5_PACKAGE} --lpf fpga_config/${FPGA_BOARD}/pin_constraint.pcf
+	${Q} nextpnr-ecp5 --Werror -q --json $< --textcfg $@ ${NEXTPNR_ECP5_DEV} --package ${ECP5_PACKAGE} --lpf fpga_config/${FPGA_BOARD}/pin_constraint.pcf --report=synth_pnr_report.json
+	${Q}../tools/parse_nextpnr_stats.sh --brief synth_pnr_report.json
 
 synth_ecp5.bit:synth_ecp5_out.config
 	${QUIET_ECPPACK}
diff --git a/tools/parse_nextpnr_stats.sh b/tools/parse_nextpnr_stats.sh
new file mode 100755
index 0000000..99532f7
--- /dev/null
+++ b/tools/parse_nextpnr_stats.sh
@@ -0,0 +1,49 @@
+#!/bin/sh
+set -eu
+
+if ! which jq &> /dev/null
+then
+	echo to get stastics, please install jq
+	exit 0
+fi
+
+REPORT_TYPE=brief
+
+if [ $# == 0 ]
+then
+	echo $0' [report type] <report json file>'
+	exit 1
+elif [ $# == 2 ]
+then
+	case "$1" in
+		"--brief")
+			REPORT_TYPE=brief
+			;;
+		*)
+			echo unkown parameter "\"$1\""
+			exit 1
+			;;
+	esac
+	REPORT=$2
+else
+	REPORT=$1
+fi
+
+if ! [ -e "$REPORT" ]
+then
+	echo file "\"${REPORT}\"" doesn\'t exist!
+	exit 1
+fi
+
+LUT_AVAIL=$(jq '.utilization.TRELLIS_COMB.available' "$REPORT" )
+LUT_USED=$(jq '.utilization.TRELLIS_COMB.used' "$REPORT" )
+FF_AVAIL=$(jq '.utilization.TRELLIS_FF.available' "$REPORT" )
+FF_USED=$(jq '.utilization.TRELLIS_FF.used' "$REPORT" )
+
+if [ "$REPORT_TYPE" == "brief" ]
+then
+	printf '\e[1;30m'
+	echo Luts $LUT_USED/$LUT_AVAIL \($(echo "($LUT_USED*100)/$LUT_AVAIL"|bc -l|grep -o '^.*\..')%\)
+	echo Flip Flops $FF_USED/$FF_AVAIL \($(echo "($FF_USED*100)/$FF_AVAIL"|bc -l|grep -o '^.*\..')%\)
+	printf '\e[0m'
+fi