mirror of
https://github.com/antonblanchard/microwatt.git
synced 2026-01-21 18:05:15 +00:00
6254bb5ee9
We've been investigating why the barrel rotator uses an enormous
number of cells on the yosys ECP5 target. Eventually it was narrowed
down to the -abc9 -nowidelut options, which see the cell count go from
4985 cells to 841 cells.
Using the same options on an Orange Crab build reduces the cell count
from 50864 to 36085. The main differences:
LUT4 31040 -> 25270
PFUMX 6956 -> 0
L6MUX21 1746 -> 0
CCU2C 2066 -> 1759
Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
288 lines
9.7 KiB
Makefile
288 lines
9.7 KiB
Makefile
GHDL ?= ghdl
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GHDLFLAGS=--std=08
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CFLAGS=-O3 -Wall
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VERILATOR_FLAGS=-O3 #--trace
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# It takes forever to build with optimisation, so disable by default
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#VERILATOR_CFLAGS=-O3
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GHDLSYNTH ?= ghdl.so
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YOSYS ?= yosys
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NEXTPNR ?= nextpnr-ecp5
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ECPPACK ?= ecppack
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OPENOCD ?= openocd
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VUNITRUN ?= python3 ./run.py
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# We need a version of GHDL built with either the LLVM or gcc backend.
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# Fedora provides this, but other distros may not. Another option is to use
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# the Docker image.
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DOCKER ?= 0
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PODMAN ?= 0
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ifeq ($(DOCKER), 1)
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DOCKERBIN=docker
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USE_DOCKER=1
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endif
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ifeq ($(PODMAN), 1)
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DOCKERBIN=podman
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USE_DOCKER=1
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endif
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ifeq ($(USE_DOCKER), 1)
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PWD = $(shell pwd)
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DOCKERARGS = run --rm -v $(PWD):/src:z -w /src
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GHDL = $(DOCKERBIN) $(DOCKERARGS) ghdl/ghdl:buster-llvm-7 ghdl
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CC = $(DOCKERBIN) $(DOCKERARGS) ghdl/ghdl:buster-llvm-7 gcc
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GHDLSYNTH = ghdl
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YOSYS = $(DOCKERBIN) $(DOCKERARGS) hdlc/ghdl:yosys yosys
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NEXTPNR = $(DOCKERBIN) $(DOCKERARGS) hdlc/nextpnr:ecp5 nextpnr-ecp5
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ECPPACK = $(DOCKERBIN) $(DOCKERARGS) hdlc/prjtrellis ecppack
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OPENOCD = $(DOCKERBIN) $(DOCKERARGS) --device /dev/bus/usb hdlc/prog openocd
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VUNITRUN = $(DOCKERBIN) $(DOCKERARGS) ghdl/vunit:llvm python3 ./run.py
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endif
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VUNITARGS += -p10
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all = core_tb icache_tb dcache_tb dmi_dtm_tb \
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wishbone_bram_tb soc_reset_tb
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all: $(all)
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core_files = decode_types.vhdl common.vhdl wishbone_types.vhdl fetch1.vhdl \
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utils.vhdl plru.vhdl cache_ram.vhdl icache.vhdl \
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decode1.vhdl helpers.vhdl insn_helpers.vhdl \
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control.vhdl decode2.vhdl register_file.vhdl \
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cr_file.vhdl crhelpers.vhdl ppc_fx_insns.vhdl rotator.vhdl \
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logical.vhdl countzero.vhdl multiply.vhdl divider.vhdl execute1.vhdl \
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loadstore1.vhdl mmu.vhdl dcache.vhdl writeback.vhdl core_debug.vhdl \
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core.vhdl fpu.vhdl
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soc_files = wishbone_arbiter.vhdl wishbone_bram_wrapper.vhdl sync_fifo.vhdl \
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wishbone_debug_master.vhdl xics.vhdl syscon.vhdl gpio.vhdl soc.vhdl \
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spi_rxtx.vhdl spi_flash_ctrl.vhdl
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uart_files = $(wildcard uart16550/*.v)
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soc_sim_files = $(core_files) $(soc_files) sim_console.vhdl sim_pp_uart.vhdl sim_bram_helpers.vhdl \
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sim_bram.vhdl sim_jtag_socket.vhdl sim_jtag.vhdl dmi_dtm_xilinx.vhdl \
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sim_16550_uart.vhdl \
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foreign_random.vhdl glibc_random.vhdl glibc_random_helpers.vhdl
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soc_sim_c_files = sim_vhpi_c.c sim_bram_helpers_c.c sim_console_c.c \
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sim_jtag_socket_c.c
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soc_sim_obj_files=$(soc_sim_c_files:.c=.o)
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comma := ,
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soc_sim_link=$(patsubst %,-Wl$(comma)%,$(soc_sim_obj_files))
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unisim_dir = sim-unisim
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unisim_lib = $(unisim_dir)/unisim-obj08.cf
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unisim_lib_files = $(unisim_dir)/BSCANE2.vhdl $(unisim_dir)/BUFG.vhdl \
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$(unisim_dir)/unisim_vcomponents.vhdl
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$(unisim_lib): $(unisim_lib_files)
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$(GHDL) -i --std=08 --work=unisim --workdir=$(unisim_dir) $^
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GHDLFLAGS += -P$(unisim_dir)
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soc_tbs = core_tb icache_tb dcache_tb dmi_dtm_tb wishbone_bram_tb
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soc_flash_tbs = core_flash_tb
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soc_dram_tbs = dram_tb core_dram_tb
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ifneq ($(FLASH_MODEL_PATH),)
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fmf_dir = $(FLASH_MODEL_PATH)/fmf
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fmf_lib = $(fmf_dir)/fmf-obj08.cf
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fmf_lib_files = $(wildcard $(fmf_dir)/*.vhd)
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GHDLFLAGS += -P$(fmf_dir)
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$(fmf_lib): $(fmf_lib_files)
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$(GHDL) -i --std=08 --work=fmf --workdir=$(fmf_dir) $^
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flash_model_files=$(FLASH_MODEL_PATH)/s25fl128s.vhd
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flash_model_files: $(fmf_lib)
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else
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flash_model_files=sim_no_flash.vhdl
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fmf_lib=
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endif
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$(soc_flash_tbs): %: $(soc_sim_files) $(soc_sim_obj_files) $(unisim_lib) $(fmf_lib) $(flash_model_files) %.vhdl
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$(GHDL) -c $(GHDLFLAGS) $(soc_sim_link) $(soc_sim_files) $(flash_model_files) $@.vhdl $(unisim_files) -e $@
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$(soc_tbs): %: $(soc_sim_files) $(soc_sim_obj_files) $(unisim_lib) %.vhdl
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$(GHDL) -c $(GHDLFLAGS) $(soc_sim_link) $(soc_sim_files) $@.vhdl -e $@
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soc_reset_tb: fpga/soc_reset_tb.vhdl fpga/soc_reset.vhdl
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$(GHDL) -c $(GHDLFLAGS) fpga/soc_reset_tb.vhdl fpga/soc_reset.vhdl -e $@
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# LiteDRAM sim
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VERILATOR_ROOT=$(shell verilator -getenv VERILATOR_ROOT 2>/dev/null)
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ifeq (, $(VERILATOR_ROOT))
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$(soc_dram_tbs):
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$(error "Verilator is required to make this target !")
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else
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verilated_dram: litedram/generated/sim/litedram_core.v
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verilator $(VERILATOR_FLAGS) -CFLAGS $(VERILATOR_CFLAGS) -Wno-fatal --cc $<
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make -C obj_dir -f ../litedram/extras/sim_dram_verilate.mk VERILATOR_ROOT=$(VERILATOR_ROOT)
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SIM_DRAM_CFLAGS = -I. -Iobj_dir -Ilitedram/generated/sim -I$(VERILATOR_ROOT)/include -I$(VERILATOR_ROOT)/include/vltstd
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SIM_DRAM_CFLAGS += -DVM_COVERAGE=0 -DVM_SC=0 -DVM_TRACE=1 -DVL_PRINTF=printf -faligned-new
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sim_litedram_c.o: litedram/extras/sim_litedram_c.cpp verilated_dram
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$(CC) $(CPPFLAGS) $(SIM_DRAM_CFLAGS) $(CFLAGS) -c $< -o $@
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soc_dram_files = $(core_files) $(soc_files) litedram/extras/litedram-wrapper-l2.vhdl litedram/generated/sim/litedram-initmem.vhdl
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soc_dram_sim_files = $(soc_sim_files) litedram/extras/sim_litedram.vhdl
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soc_dram_sim_obj_files = $(soc_sim_obj_files) sim_litedram_c.o
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dram_link_files=-Wl,obj_dir/Vlitedram_core__ALL.a -Wl,obj_dir/verilated.o -Wl,obj_dir/verilated_vcd_c.o -Wl,-lstdc++
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soc_dram_sim_link=$(patsubst %,-Wl$(comma)%,$(soc_dram_sim_obj_files)) $(dram_link_files)
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$(soc_dram_tbs): %: $(soc_dram_files) $(soc_dram_sim_files) $(soc_dram_sim_obj_files) $(flash_model_files) $(unisim_lib) $(fmf_lib) %.vhdl
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$(GHDL) -c $(GHDLFLAGS) $(soc_dram_sim_link) $(soc_dram_files) $(soc_dram_sim_files) $(flash_model_files) $@.vhdl -e $@
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endif
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# Hello world
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MEMORY_SIZE=8192
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RAM_INIT_FILE=hello_world/hello_world.hex
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# Micropython
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#MEMORY_SIZE=393216
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#RAM_INIT_FILE=micropython/firmware.hex
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FPGA_TARGET ?= ORANGE-CRAB
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# FIXME: icache RAMs aren't being inferrenced as block RAMs on ECP5
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# with yosys, so make it smaller for now as a workaround.
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ICACHE_NUM_LINES=4
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# OrangeCrab with ECP85
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ifeq ($(FPGA_TARGET), ORANGE-CRAB)
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RESET_LOW=true
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CLK_INPUT=50000000
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CLK_FREQUENCY=40000000
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LPF=constraints/orange-crab.lpf
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PACKAGE=CSFBGA285
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NEXTPNR_FLAGS=--um5g-85k --freq 40
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OPENOCD_JTAG_CONFIG=openocd/olimex-arm-usb-tiny-h.cfg
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OPENOCD_DEVICE_CONFIG=openocd/LFE5UM5G-85F.cfg
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endif
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# ECP5-EVN
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ifeq ($(FPGA_TARGET), ECP5-EVN)
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RESET_LOW=true
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CLK_INPUT=12000000
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CLK_FREQUENCY=40000000
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LPF=constraints/ecp5-evn.lpf
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PACKAGE=CABGA381
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NEXTPNR_FLAGS=--um5g-85k --freq 40
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OPENOCD_JTAG_CONFIG=openocd/ecp5-evn.cfg
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OPENOCD_DEVICE_CONFIG=openocd/LFE5UM5G-85F.cfg
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endif
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GHDL_IMAGE_GENERICS=-gMEMORY_SIZE=$(MEMORY_SIZE) -gRAM_INIT_FILE=$(RAM_INIT_FILE) \
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-gRESET_LOW=$(RESET_LOW) -gCLK_INPUT=$(CLK_INPUT) -gCLK_FREQUENCY=$(CLK_FREQUENCY) -gICACHE_NUM_LINES=$(ICACHE_NUM_LINES)
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clkgen=fpga/clk_gen_ecp5.vhd
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toplevel=fpga/top-generic.vhdl
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dmi_dtm=dmi_dtm_dummy.vhdl
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ifeq ($(FPGA_TARGET), verilator)
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RESET_LOW=true
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CLK_INPUT=50000000
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CLK_FREQUENCY=50000000
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clkgen=fpga/clk_gen_bypass.vhd
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endif
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fpga_files = fpga/soc_reset.vhdl \
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fpga/pp_fifo.vhd fpga/pp_soc_uart.vhd fpga/main_bram.vhdl \
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nonrandom.vhdl
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synth_files = $(core_files) $(soc_files) $(fpga_files) $(clkgen) $(toplevel) $(dmi_dtm)
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microwatt.json: $(synth_files) $(RAM_INIT_FILE)
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$(YOSYS) -m $(GHDLSYNTH) -p "ghdl --std=08 --no-formal $(GHDL_IMAGE_GENERICS) $(synth_files) -e toplevel; synth_ecp5 -abc9 -nowidelut -json $@ $(SYNTH_ECP5_FLAGS)" $(uart_files)
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microwatt.v: $(synth_files) $(RAM_INIT_FILE)
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$(YOSYS) -m $(GHDLSYNTH) -p "ghdl --std=08 --no-formal $(GHDL_IMAGE_GENERICS) $(synth_files) -e toplevel; write_verilog $@"
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# Need to investigate why yosys is hitting verilator warnings, and eventually turn on -Wall
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microwatt-verilator: microwatt.v verilator/microwatt-verilator.cpp verilator/uart-verilator.c
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verilator $(VERILATOR_FLAGS) -CFLAGS "$(VERILATOR_CFLAGS) -DCLK_FREQUENCY=$(CLK_FREQUENCY)" --assert --cc $< --exe verilator/microwatt-verilator.cpp verilator/uart-verilator.c -o $@ -Iuart16550 -Wno-fatal -Wno-CASEOVERLAP -Wno-UNOPTFLAT
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make -C obj_dir -f Vmicrowatt.mk
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@cp -f obj_dir/microwatt-verilator microwatt-verilator
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microwatt_out.config: microwatt.json $(LPF)
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$(NEXTPNR) --json $< --lpf $(LPF) --textcfg $@.tmp $(NEXTPNR_FLAGS) --package $(PACKAGE)
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mv -f $@.tmp $@
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microwatt.bit: microwatt_out.config
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$(ECPPACK) --svf microwatt.svf $< $@
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microwatt.svf: microwatt.bit
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prog: microwatt.svf
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$(OPENOCD) -f $(OPENOCD_JTAG_CONFIG) -f $(OPENOCD_DEVICE_CONFIG) -c "transport select jtag; init; svf $<; exit"
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tests = $(sort $(patsubst tests/%.out,%,$(wildcard tests/*.out)))
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tests_console = $(sort $(patsubst tests/%.console_out,%,$(wildcard tests/*.console_out)))
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tests_console: $(tests_console)
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check_vunit:
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$(VUNITRUN) $(VUNITARGS)
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check: $(tests) tests_console test_micropython test_micropython_long tests_unit
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check_light: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 test_micropython test_micropython_long tests_console tests_unit
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$(tests): core_tb
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@./scripts/run_test.sh $@
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$(tests_console): core_tb
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@./scripts/run_test_console.sh $@
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test_micropython: core_tb
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@./scripts/test_micropython.py
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test_micropython_long: core_tb
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@./scripts/test_micropython_long.py
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tests_soc_tb = $(patsubst %_tb,%_tb_test,$(soc_tbs))
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%_test: %
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./$< --assert-level=error > /dev/null
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tests_soc: $(tests_soc_tb)
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# FIXME SOC tests have bit rotted, so disable for now
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#tests_unit: tests_soc
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TAGS:
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find . -name '*.vhdl' | xargs ./scripts/vhdltags
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.PHONY: TAGS
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_clean:
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rm -f *.o *.cf $(all)
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rm -f fpga/*.o fpga/*.cf
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rm -f sim-unisim/*.o sim-unisim/*.cf
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rm -f litedram/extras/*.o
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rm -f TAGS
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rm -f scripts/mw_debug/*.o
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rm -f scripts/mw_debug/mw_debug
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rm -f microwatt.bin microwatt.json microwatt.svf microwatt_out.config
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rm -f microwatt.v microwatt-verilator
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rm -rf obj_dir/
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clean: _clean
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make -f scripts/mw_debug/Makefile clean
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make -f hello_world/Makefile clean
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distclean: _clean
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rm -f *~ fpga/*~ lib/*~ console/*~ include/*~
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rm -rf litedram/build
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rm -f litedram/extras/*~
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rm -f litedram/gen-src/*~
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rm -f litedram/gen-src/sdram_init/*~
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make -f scripts/mw_debug/Makefile distclean
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make -f hello_world/Makefile distclean
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.PHONY: all prog check check_light clean distclean
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.PRECIOUS: microwatt.json microwatt_out.config microwatt.bit
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