From 39c2abae5144f71fe3fa3503d725e68ca5e25289 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 5 Sep 2022 00:21:47 +1000 Subject: [PATCH] Fix build of core_dram_tb and dram_tb and fix tracing We disabled --trace by default, so we need to stop linking verilated_vcd_c.o as it doesn't exist in that case. While at it, make a Makefile variable to enable/disable verilator tracing and add a couple of generics to those test benches to control tracing in the L2 and in litedram. Signed-off-by: Benjamin Herrenschmidt --- Makefile | 13 ++++++++++--- core_dram_tb.vhdl | 8 ++++++-- dram_tb.vhdl | 8 ++++++-- litedram/extras/sim_litedram_c.cpp | 3 +-- 4 files changed, 23 insertions(+), 9 deletions(-) diff --git a/Makefile b/Makefile index 6ab9efc..3861603 100644 --- a/Makefile +++ b/Makefile @@ -2,7 +2,14 @@ GHDL ?= ghdl GHDLFLAGS=--std=08 CFLAGS=-O3 -Wall # Need to investigate why yosys is hitting verilator warnings, and eventually turn on -Wall -VERILATOR_FLAGS=-O3 -Wno-fatal -Wno-CASEOVERLAP -Wno-UNOPTFLAT #--trace +VERILATOR_FLAGS=-O3 -Wno-fatal -Wno-CASEOVERLAP -Wno-UNOPTFLAT +VERILATOR_TRACE=0 + +ifeq ($(VERILATOR_TRACE),1) +VERILATOR_FLAGS += --trace +verilator_extra_link = -Wl,obj_dir/verilated_vcd_c.o +endif + # It takes forever to build with optimisation, so disable by default #VERILATOR_CFLAGS=-O3 @@ -135,14 +142,14 @@ verilated_dram: litedram/generated/sim/litedram_core.v make -C obj_dir -f ../litedram/extras/sim_dram_verilate.mk VERILATOR_ROOT=$(VERILATOR_ROOT) SIM_DRAM_CFLAGS = -I. -Iobj_dir -Ilitedram/generated/sim -I$(VERILATOR_ROOT)/include -I$(VERILATOR_ROOT)/include/vltstd -SIM_DRAM_CFLAGS += -DVM_COVERAGE=0 -DVM_SC=0 -DVM_TRACE=1 -DVL_PRINTF=printf -faligned-new +SIM_DRAM_CFLAGS += -DVM_COVERAGE=0 -DVM_SC=0 -DVM_TRACE=$(VERILATOR_TRACE) -DVL_PRINTF=printf -faligned-new sim_litedram_c.o: litedram/extras/sim_litedram_c.cpp verilated_dram $(CC) $(CPPFLAGS) $(SIM_DRAM_CFLAGS) $(CFLAGS) -c $< -o $@ soc_dram_files = $(core_files) $(soc_files) litedram/extras/litedram-wrapper-l2.vhdl litedram/generated/sim/litedram-initmem.vhdl soc_dram_sim_files = $(soc_sim_files) litedram/extras/sim_litedram.vhdl soc_dram_sim_obj_files = $(soc_sim_obj_files) sim_litedram_c.o -dram_link_files=-Wl,obj_dir/Vlitedram_core__ALL.a -Wl,obj_dir/verilated.o -Wl,obj_dir/verilated_vcd_c.o -Wl,-lstdc++ +dram_link_files=-Wl,obj_dir/Vlitedram_core__ALL.a -Wl,obj_dir/verilated.o $(verilator_extra_link) -Wl,-lstdc++ soc_dram_sim_link=$(patsubst %,-Wl$(comma)%,$(soc_dram_sim_obj_files)) $(dram_link_files) $(soc_dram_tbs): %: $(soc_dram_files) $(soc_dram_sim_files) $(soc_dram_sim_obj_files) $(flash_model_files) $(unisim_lib) $(fmf_lib) %.vhdl diff --git a/core_dram_tb.vhdl b/core_dram_tb.vhdl index 14df87c..a0251e3 100644 --- a/core_dram_tb.vhdl +++ b/core_dram_tb.vhdl @@ -12,7 +12,9 @@ entity core_dram_tb is MEMORY_SIZE : natural := (384*1024); MAIN_RAM_FILE : string := "main_ram.bin"; DRAM_INIT_FILE : string := ""; - DRAM_INIT_SIZE : natural := 16#c000# + DRAM_INIT_SIZE : natural := 16#c000#; + L2_TRACE : boolean := false; + LITEDRAM_TRACE : boolean := false ); end core_dram_tb; @@ -124,7 +126,9 @@ begin DRAM_CKLINES => 1, DRAM_PORT_WIDTH => 128, PAYLOAD_FILE => DRAM_INIT_FILE, - PAYLOAD_SIZE => ROM_SIZE + PAYLOAD_SIZE => ROM_SIZE, + TRACE => L2_TRACE, + LITEDRAM_TRACE => LITEDRAM_TRACE ) port map( clk_in => clk, diff --git a/dram_tb.vhdl b/dram_tb.vhdl index 398857d..ce22f30 100644 --- a/dram_tb.vhdl +++ b/dram_tb.vhdl @@ -9,7 +9,9 @@ use work.wishbone_types.all; entity dram_tb is generic ( DRAM_INIT_FILE : string := ""; - DRAM_INIT_SIZE : natural := 0 + DRAM_INIT_SIZE : natural := 0; + L2_TRACE : boolean := false; + LITEDRAM_TRACE : boolean := false ); end dram_tb; @@ -47,7 +49,9 @@ begin DRAM_CKLINES => 1, DRAM_PORT_WIDTH => 128, PAYLOAD_FILE => DRAM_INIT_FILE, - PAYLOAD_SIZE => DRAM_INIT_SIZE + PAYLOAD_SIZE => DRAM_INIT_SIZE, + TRACE => L2_TRACE, + LITEDRAM_TRACE => LITEDRAM_TRACE ) port map( clk_in => clk_in, diff --git a/litedram/extras/sim_litedram_c.cpp b/litedram/extras/sim_litedram_c.cpp index 265e9b2..6846d70 100644 --- a/litedram/extras/sim_litedram_c.cpp +++ b/litedram/extras/sim_litedram_c.cpp @@ -102,6 +102,7 @@ static void do_eval(void) if (tfp) tfp->dump((double) main_time); #endif + main_time++; } extern "C" void litedram_set_wb(unsigned char *req) @@ -184,10 +185,8 @@ extern "C" void litedram_clock(void) v->clk = 1; do_eval(); - main_time++; v->clk = 0; do_eval(); - main_time++; } extern "C" void litedram_init(int trace_on) -- 2.30.2