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# SPDX-FileCopyrightText: 2020 Efabless Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# 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.
#
# SPDX-License-Identifier: Apache-2.0
# cannot commit files larger than 100 MB to GitHub
FILE_SIZE_LIMIT_MB = 100
LARGE_FILES := $(shell find ./gds -type f -name "*.gds")
LARGE_FILES += $(shell find . -type f -size +$(FILE_SIZE_LIMIT_MB)M -not -path "./.git/*" -not -path "./gds/*" -not -path "./openlane/*")
LARGE_FILES_GZ := $(addsuffix .gz, $(LARGE_FILES))
ARCHIVES := $(shell find . -type f -name "*.gz")
ARCHIVE_SOURCES := $(basename $(ARCHIVES))
# PDK setup configs
THREADS ?= $(shell nproc)
STD_CELL_LIBRARY ?= sky130_fd_sc_hd
SPECIAL_VOLTAGE_LIBRARY ?= sky130_fd_sc_hvl
IO_LIBRARY ?= sky130_fd_io
SKYWATER_COMMIT ?= 3d7617a1acb92ea883539bcf22a632d6361a5de4
OPEN_PDKS_COMMIT ?= 32cdb2097fd9a629c91e8ea33e1f6de08ab25946
.DEFAULT_GOAL := ship
# We need portable GDS_FILE pointers...
.PHONY: ship
ship: check-env uncompress
@echo "###############################################"
@echo "Generating Caravel GDS (sources are in the 'gds' directory)"
@sleep 1
@cp gds/caravel.gds gds/caravel.old.gds && echo "Copying old Caravel to gds/caravel.old.gds" || true
@cd gds && MAGTYPE=mag magic -rcfile ${PDK_ROOT}/sky130A/libs.tech/magic/current/sky130A.magicrc -noc -dnull gen_caravel.tcl < /dev/null
.PHONY: clean
clean:
echo "clean"
.PHONY: verify
verify:
echo "verify"
$(LARGE_FILES_GZ): %.gz: %
@if ! [ $(suffix $<) == ".gz" ]; then\
gzip -n --best $< > /dev/null &&\
echo "$< -> $@";\
fi
# This target compresses all files larger than $(FILE_SIZE_LIMIT_MB) MB
.PHONY: compress
compress: $(LARGE_FILES_GZ)
@echo "Files larger than $(FILE_SIZE_LIMIT_MB) MBytes are compressed!"
$(ARCHIVE_SOURCES): %: %.gz
@gzip -d $< &&\
echo "$< -> $@";\
.PHONY: uncompress
uncompress: $(ARCHIVE_SOURCES)
@echo "All files are uncompressed!"
# LVS
BLOCKS = $(shell cd openlane && find * -maxdepth 0 -type d)
LVS_BLOCKS = $(foreach block, $(BLOCKS), lvs-$(block))
$(LVS_BLOCKS): lvs-% : ./mag/%.mag ./verilog/gl/%.v
echo "Extracting $*"
mkdir -p ./mag/tmp
echo "load $* -dereference;\
extract no all;\
extract do local;\
extract;\
ext2spice lvs;\
ext2spice;\
feedback save extract_$*.log;\
exit;" > ./mag/extract_$*.tcl
cd mag && MAGTYPE=maglef magic -rcfile ${PDK_ROOT}/sky130A/libs.tech/magic/current/sky130A.magicrc -noc -dnull extract_$*.tcl
mv ./mag/$*.spice ./spi/lvs
mv -f ./mag/extract_$*.{tcl,log} ./mag/*.ext ./mag/tmp
####
mkdir -p ./spi/lvs/tmp
sh ./spi/lvs/run_lvs.sh ./verilog/gl/$*.v ./spi/lvs/$*.spice $*
mv -f ./spi/lvs/*{.out,.json,.log} ./spi/lvs/tmp 2> /dev/null || true
.PHONY: help
help:
@$(MAKE) -pRrq -f $(lastword $(MAKEFILE_LIST)) : 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | sort | egrep -v -e '^[^[:alnum:]]' -e '^$@$$'
###########################################################################
.PHONY: pdk
pdk: skywater-pdk skywater-library open_pdks build-pdk
$(PDK_ROOT)/skywater-pdk:
git clone https://github.com/google/skywater-pdk.git $(PDK_ROOT)/skywater-pdk
.PHONY: skywater-pdk
skywater-pdk: check-env $(PDK_ROOT)/skywater-pdk
cd $(PDK_ROOT)/skywater-pdk && \
git checkout master && git pull && \
git checkout -qf $(SKYWATER_COMMIT)
.PHONY: skywater-library
skywater-library: check-env $(PDK_ROOT)/skywater-pdk
cd $(PDK_ROOT)/skywater-pdk && \
git submodule update --init libraries/$(STD_CELL_LIBRARY)/latest && \
git submodule update --init libraries/$(IO_LIBRARY)/latest && \
git submodule update --init libraries/$(SPECIAL_VOLTAGE_LIBRARY)/latest && \
$(MAKE) -j$(THREADS) timing
### OPEN_PDKS
$(PDK_ROOT)/open_pdks:
git clone https://github.com/RTimothyEdwards/open_pdks.git $(PDK_ROOT)/open_pdks
.PHONY: open_pdks
open_pdks: check-env $(PDK_ROOT)/open_pdks
cd $(PDK_ROOT)/open_pdks && \
git checkout master && git pull && \
git checkout -qf $(OPEN_PDKS_COMMIT)
.PHONY: build-pdk
build-pdk: check-env $(PDK_ROOT)/open_pdks $(PDK_ROOT)/skywater-pdk
[ -d $(PDK_ROOT)/sky130A ] && \
(echo "Warning: A sky130A build already exists under $(PDK_ROOT). It will be deleted first!" && \
sleep 5 && \
rm -rf $(PDK_ROOT)/sky130A) || \
true
cd $(PDK_ROOT)/open_pdks && \
./configure --with-sky130-source=$(PDK_ROOT)/skywater-pdk/libraries --with-sky130-local-path=$(PDK_ROOT) && \
cd sky130 && \
$(MAKE) veryclean && \
$(MAKE) && \
$(MAKE) install-local
.RECIPE: manifest
manifest:
cd verilog/rtl/ && \
find * -type f ! -name "user_*.v" ! -name "manifest" ! -name "README" ! -name "defines.v" -exec shasum {} \; > manifest && \
cd ../../maglef/ && \
shasum *.mag > manifest && \
cd ../mag/ && \
shasum caravel.mag .magicrc > manifest
check-env:
ifndef PDK_ROOT
$(error PDK_ROOT is undefined, please export it before running make)
endif