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OpenFPGA/vpr7_x2p/vpr/SRC/fpga_x2p/verilog/verilog_api.c

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/***********************************/
/* Synthesizable Verilog Dumping */
/* Xifan TANG, EPFL/LSI */
/***********************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <time.h>
#include <assert.h>
#include <sys/stat.h>
#include <unistd.h>
/* Include vpr structs*/
#include "util.h"
#include "physical_types.h"
#include "vpr_types.h"
#include "globals.h"
#include "rr_graph.h"
#include "vpr_utils.h"
#include "path_delay.h"
#include "stats.h"
#include "route_common.h"
/* Include FPGA-SPICE utils */
#include "read_xml_spice_util.h"
#include "linkedlist.h"
#include "fpga_x2p_types.h"
#include "fpga_x2p_utils.h"
#include "fpga_x2p_pbtypes_utils.h"
#include "fpga_x2p_backannotate_utils.h"
#include "fpga_x2p_globals.h"
#include "fpga_bitstream.h"
#include "module_manager.h"
/* Include SynVerilog headers */
#include "verilog_global.h"
#include "verilog_utils.h"
#include "verilog_submodules.h"
#include "verilog_pbtypes.h"
#include "verilog_routing.h"
#include "verilog_compact_netlist.h"
#include "verilog_top_testbench.h"
#include "verilog_autocheck_top_testbench.h"
#include "verilog_formal_random_top_testbench.h"
#include "verilog_verification_top_netlist.h"
#include "verilog_modelsim_autodeck.h"
#include "verilog_report_timing.h"
#include "verilog_sdc.h"
#include "verilog_formality_autodeck.h"
#include "verilog_sdc_pb_types.h"
#include "verilog_include_netlists.h"
#include "verilog_api.h"
/***** Subroutines *****/
/* Alloc array that records Configuration bits for :
* (1) Switch blocks
* (2) Connection boxes
* TODO: Can be improved in alloc strategy to be more memory efficient!
*/
static
void alloc_global_routing_conf_bits() {
int i;
/* Alloc array for Switch blocks */
num_conf_bits_sb = (int**)my_malloc((nx+1)*sizeof(int*));
for (i = 0; i < (nx + 1); i++) {
num_conf_bits_sb[i] = (int*)my_calloc((ny+1), sizeof(int));
}
/* Alloc array for Connection blocks */
num_conf_bits_cbx = (int**)my_malloc((nx+1)*sizeof(int*));
for (i = 0; i < (nx + 1); i++) {
num_conf_bits_cbx[i] = (int*)my_calloc((ny+1), sizeof(int));
}
num_conf_bits_cby = (int**)my_malloc((nx+1)*sizeof(int*));
for (i = 0; i < (nx + 1); i++) {
num_conf_bits_cby[i] = (int*)my_calloc((ny+1), sizeof(int));
}
return;
}
static
void free_global_routing_conf_bits() {
int i;
/* Free array for Switch blocks */
for (i = 0; i < (nx + 1); i++) {
my_free(num_conf_bits_sb[i]);
}
my_free(num_conf_bits_sb);
/* Free array for Connection box */
for (i = 0; i < (nx + 1); i++) {
my_free(num_conf_bits_cbx[i]);
}
my_free(num_conf_bits_cbx);
for (i = 0; i < (nx + 1); i++) {
my_free(num_conf_bits_cby[i]);
}
my_free(num_conf_bits_cby);
return;
}
/* Top-level function*/
void vpr_fpga_verilog(t_vpr_setup vpr_setup,
t_arch Arch,
char* circuit_name) {
/* Timer */
clock_t t_start;
clock_t t_end;
float run_time_sec;
int num_clocks = Arch.spice->spice_params.stimulate_params.num_clocks;
/* int vpr_crit_path_delay = Arch.spice->spice_params.stimulate_params.vpr_crit_path_delay; */
/* Directory paths */
char* verilog_dir_formatted = NULL;
char* src_dir_path = NULL;
char* submodule_dir_path= NULL;
char* lb_dir_path = NULL;
char* rr_dir_path = NULL;
char* tcl_dir_path = NULL;
char* sdc_dir_path = NULL;
char* msim_dir_path = NULL;
char* fm_dir_path = NULL;
char* top_netlist_file = NULL;
char* top_netlist_path = NULL;
char* top_testbench_file_name = NULL;
char* top_testbench_file_path = NULL;
char* blif_testbench_file_name = NULL;
char* blif_testbench_file_path = NULL;
char* bitstream_file_name = NULL;
char* bitstream_file_path = NULL;
char* formal_verification_top_netlist_file_name = NULL;
char* formal_verification_top_netlist_file_path = NULL;
char* autocheck_top_testbench_file_name = NULL;
char* autocheck_top_testbench_file_path = NULL;
char* random_top_testbench_file_name = NULL;
char* random_top_testbench_file_path = NULL;
char* chomped_parent_dir = NULL;
char* chomped_circuit_name = NULL;
t_sram_orgz_info* sram_verilog_orgz_info = NULL;
/* Module manager for the Verilog modules created */
ModuleManager module_manager;
/* Check if the routing architecture we support*/
if (UNI_DIRECTIONAL != vpr_setup.RoutingArch.directionality) {
vpr_printf(TIO_MESSAGE_ERROR, "FPGA synthesizable Verilog dumping only support uni-directional routing architecture!\n");
exit(1);
}
/* We don't support mrFPGA */
#ifdef MRFPGA_H
if (is_mrFPGA) {
vpr_printf(TIO_MESSAGE_ERROR, "FPGA synthesizable verilog dumping do not support mrFPGA!\n");
exit(1);
}
#endif
assert ( TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.dump_syn_verilog);
/* VerilogGenerator formally starts*/
vpr_printf(TIO_MESSAGE_INFO, "\nFPGA synthesizable verilog generator starts...\n");
/* Start time count */
t_start = clock();
/* Format the directory paths */
split_path_prog_name(circuit_name, '/', &chomped_parent_dir, &chomped_circuit_name);
if (NULL != vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.syn_verilog_dump_dir) {
verilog_dir_formatted = format_dir_path(vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.syn_verilog_dump_dir);
} else {
verilog_dir_formatted = format_dir_path(my_strcat(format_dir_path(chomped_parent_dir), default_verilog_dir_name));
}
/* SRC directory */
src_dir_path = format_dir_path(my_strcat(verilog_dir_formatted, default_src_dir_name));
/* lb directory */
lb_dir_path = my_strcat(src_dir_path, default_lb_dir_name);
/* routing resources directory */
rr_dir_path = my_strcat(src_dir_path, default_rr_dir_name);
/* submodule_dir_path */
submodule_dir_path = my_strcat(src_dir_path, default_submodule_dir_name);
/* SDC_dir_path */
sdc_dir_path = my_strcat(verilog_dir_formatted, default_sdc_dir_name);
/* tcl_dir_path */
tcl_dir_path = my_strcat(verilog_dir_formatted, default_tcl_dir_name);
/* msim_dir_path */
msim_dir_path = my_strcat(verilog_dir_formatted, default_msim_dir_name);
/* fm_dir_path */
fm_dir_path = my_strcat(verilog_dir_formatted, default_snpsfm_dir_name);
/* Top netlists dir_path */
top_netlist_file = my_strcat(chomped_circuit_name, verilog_top_postfix);
top_netlist_path = my_strcat(src_dir_path, top_netlist_file);
/* Report timing directory */
if (NULL == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.report_timing_path) {
vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.report_timing_path = my_strcat(verilog_dir_formatted, default_report_timing_rpt_dir_name);
}
/* Create directories */
create_dir_path(verilog_dir_formatted);
create_dir_path(src_dir_path);
create_dir_path(lb_dir_path);
create_dir_path(rr_dir_path);
create_dir_path(sdc_dir_path);
create_dir_path(tcl_dir_path);
create_dir_path(fm_dir_path);
create_dir_path(msim_dir_path);
create_dir_path(submodule_dir_path);
/* assign the global variable of SRAM model */
assert(NULL != Arch.sram_inf.verilog_sram_inf_orgz); /* Check !*/
sram_verilog_model = Arch.sram_inf.verilog_sram_inf_orgz->spice_model;
/* initialize the SRAM organization information struct */
sram_verilog_orgz_info = alloc_one_sram_orgz_info();
init_sram_orgz_info(sram_verilog_orgz_info, Arch.sram_inf.verilog_sram_inf_orgz->type, sram_verilog_model, nx + 2, ny + 2);
/* Check all the SRAM port is using the correct SRAM SPICE MODEL */
config_spice_models_sram_port_spice_model(Arch.spice->num_spice_model,
Arch.spice->spice_models,
Arch.sram_inf.verilog_sram_inf_orgz->spice_model);
/* Assign global variables of input and output pads */
iopad_verilog_model = find_iopad_spice_model(Arch.spice->num_spice_model, Arch.spice->spice_models);
assert(NULL != iopad_verilog_model);
/* zero the counter of each spice_model */
zero_spice_models_cnt(Arch.spice->num_spice_model, Arch.spice->spice_models);
/* Initialize the user-defined verilog netlists to be included */
init_list_include_verilog_netlists(Arch.spice);
/* Initial global variables about configuration bits */
alloc_global_routing_conf_bits();
/* Initialize the number of configuration bits of all the grids */
vpr_printf(TIO_MESSAGE_INFO, "Count the number of configuration bits, IO pads in each logic block...\n");
/* init_grids_num_conf_bits(sram_verilog_orgz_type); */
//init_grids_num_conf_bits(sram_verilog_orgz_info);
init_pb_types_num_conf_bits(sram_verilog_orgz_info);
//init_grids_num_iopads();
init_pb_types_num_iopads();
/* init_grids_num_mode_bits(); */
dump_verilog_defines_preproc(src_dir_path,
vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts);
dump_verilog_simulation_preproc(src_dir_path,
vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts);
/* Dump routing resources: switch blocks, connection blocks and channel tracks */
dump_verilog_routing_resources(sram_verilog_orgz_info, src_dir_path, rr_dir_path, Arch, &vpr_setup.RoutingArch,
num_rr_nodes, rr_node, rr_node_indices, rr_indexed_data,
vpr_setup.FPGA_SPICE_Opts);
/* Dump logic blocks
* Branches to go:
* 1. a compact output
* 2. a full-size output
*/
dump_compact_verilog_logic_blocks(sram_verilog_orgz_info, src_dir_path,
lb_dir_path, &Arch,
vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.dump_explicit_verilog);
/* Dump internal structures of submodules */
dump_verilog_submodules(module_manager, sram_verilog_orgz_info, src_dir_path, submodule_dir_path,
Arch, &vpr_setup.RoutingArch,
vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts);
/* Dump top-level verilog */
dump_compact_verilog_top_netlist(sram_verilog_orgz_info, chomped_circuit_name,
top_netlist_path, src_dir_path, submodule_dir_path, lb_dir_path, rr_dir_path,
num_rr_nodes, rr_node, rr_node_indices,
num_clocks,
vpr_setup.FPGA_SPICE_Opts.compact_routing_hierarchy,
*(Arch.spice), vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.dump_explicit_verilog);
/* Dump SDC constraints */
/* Output SDC to contrain the P&R flow
*/
if (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_sdc_pnr) {
verilog_generate_sdc_pnr(sram_verilog_orgz_info, sdc_dir_path,
Arch, &vpr_setup.RoutingArch,
num_rr_nodes, rr_node, rr_node_indices, rr_indexed_data,
nx, ny, device_rr_gsb,
vpr_setup.FPGA_SPICE_Opts.compact_routing_hierarchy);
}
/* dump verilog testbench only for input blif */
if (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_input_blif_testbench) {
blif_testbench_file_name = my_strcat(chomped_circuit_name, blif_testbench_verilog_file_postfix);
blif_testbench_file_path = my_strcat(src_dir_path, blif_testbench_file_name);
dump_verilog_input_blif_testbench(chomped_circuit_name, blif_testbench_file_path, src_dir_path,
*(Arch.spice));
/* Free */
my_free(blif_testbench_file_name);
my_free(blif_testbench_file_path);
}
/* Free sram_orgz_info:
* Free the allocated sram_orgz_info before, we start bitstream generation !
*/
free_sram_orgz_info(sram_verilog_orgz_info,
sram_verilog_orgz_info->type);
/* Force enable bitstream generator when we need to output Verilog top testbench*/
if ((TRUE == vpr_setup.FPGA_SPICE_Opts.BitstreamGenOpts.gen_bitstream)
|| (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_top_testbench)
|| (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_autocheck_top_testbench)
|| (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_formal_verification_top_netlist)) {
vpr_setup.FPGA_SPICE_Opts.BitstreamGenOpts.gen_bitstream = TRUE;
}
/* Generate bitstream if required, and also Dump bitstream file */
if (TRUE == vpr_setup.FPGA_SPICE_Opts.BitstreamGenOpts.gen_bitstream) {
bitstream_file_name = my_strcat(chomped_circuit_name, fpga_spice_bitstream_output_file_postfix);
bitstream_file_path = my_strcat(src_dir_path, bitstream_file_name);
/* Run bitstream generation */
vpr_fpga_generate_bitstream(vpr_setup, Arch, circuit_name, bitstream_file_path, &sram_verilog_orgz_info);
my_free(bitstream_file_name);
my_free(bitstream_file_path);
}
/* dump verilog testbench only for top-level: ONLY valid when bitstream is generated! */
if (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_top_testbench) {
top_testbench_file_name = my_strcat(chomped_circuit_name, top_testbench_verilog_file_postfix);
top_testbench_file_path = my_strcat(src_dir_path, top_testbench_file_name);
dump_verilog_top_testbench(sram_verilog_orgz_info, chomped_circuit_name, top_testbench_file_path,
src_dir_path, *(Arch.spice));
/* Free */
my_free(top_testbench_file_name);
my_free(top_testbench_file_path);
}
if (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_formal_verification_top_netlist) {
formal_verification_top_netlist_file_name = my_strcat(chomped_circuit_name, formal_verification_verilog_file_postfix);
formal_verification_top_netlist_file_path = my_strcat(src_dir_path, formal_verification_top_netlist_file_name);
dump_verilog_formal_verification_top_netlist(sram_verilog_orgz_info, chomped_circuit_name,
formal_verification_top_netlist_file_path, src_dir_path);
/* Output script for formality */
write_formality_script(vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts,
fm_dir_path,
src_dir_path,
chomped_circuit_name,
*(Arch.spice));
random_top_testbench_file_name = my_strcat(chomped_circuit_name, random_top_testbench_verilog_file_postfix);
random_top_testbench_file_path = my_strcat(src_dir_path, random_top_testbench_file_name);
dump_verilog_random_top_testbench(sram_verilog_orgz_info, chomped_circuit_name,
random_top_testbench_file_path, src_dir_path,
vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts, *(Arch.spice));
/* Free */
my_free(formal_verification_top_netlist_file_name);
my_free(formal_verification_top_netlist_file_path);
}
if (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_autocheck_top_testbench) {
autocheck_top_testbench_file_name = my_strcat(chomped_circuit_name, autocheck_top_testbench_verilog_file_postfix);
autocheck_top_testbench_file_path = my_strcat(src_dir_path, autocheck_top_testbench_file_name);
dump_verilog_autocheck_top_testbench(sram_verilog_orgz_info, chomped_circuit_name,
autocheck_top_testbench_file_path, src_dir_path,
vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts, *(Arch.spice));
/* Free */
my_free(autocheck_top_testbench_file_name);
my_free(autocheck_top_testbench_file_path);
}
/* Output Modelsim Autodeck scripts */
if (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_modelsim_autodeck) {
dump_verilog_modelsim_autodeck(sram_verilog_orgz_info,
vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts,
*(Arch.spice),
Arch.spice->spice_params.meas_params.sim_num_clock_cycle,
msim_dir_path,
chomped_circuit_name,
src_dir_path);
}
/* Output SDC to contrain the mapped FPGA in timing-analysis purpose
*/
if (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_sdc_analysis) {
verilog_generate_sdc_analysis(sram_verilog_orgz_info, sdc_dir_path,
Arch,
num_rr_nodes, rr_node, rr_node_indices,
nx, ny, grid, block, device_rr_gsb,
vpr_setup.FPGA_SPICE_Opts.compact_routing_hierarchy);
}
/* Output routing report_timing script :
*/
if (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_report_timing_tcl) {
verilog_generate_report_timing(sram_verilog_orgz_info, tcl_dir_path,
Arch, &vpr_setup.RoutingArch,
num_rr_nodes, rr_node, rr_node_indices,
vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts,
vpr_setup.FPGA_SPICE_Opts.compact_routing_hierarchy);
}
if ((TRUE == vpr_setup.FPGA_SPICE_Opts.BitstreamGenOpts.gen_bitstream)
|| (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_top_testbench)
|| (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_autocheck_top_testbench)
|| (TRUE == vpr_setup.FPGA_SPICE_Opts.SynVerilogOpts.print_formal_verification_top_netlist)) {
/* Free sram_orgz_info:
* Free the allocated sram_orgz_info before, we start bitstream generation !
*/
free_sram_orgz_info(sram_verilog_orgz_info,
sram_verilog_orgz_info->type);
}
write_include_netlists(src_dir_path,
chomped_circuit_name,
*(Arch.spice) );
vpr_printf(TIO_MESSAGE_INFO, "Outputted %lu Verilog modules in total.\n", module_manager.num_modules());
/* End time count */
t_end = clock();
run_time_sec = (float)(t_end - t_start) / CLOCKS_PER_SEC;
vpr_printf(TIO_MESSAGE_INFO, "Synthesizable verilog dumping took %g seconds\n", run_time_sec);
/* Free global array */
free_global_routing_conf_bits();
/* Free */
my_free(verilog_dir_formatted);
my_free(src_dir_path);
my_free(lb_dir_path);
my_free(rr_dir_path);
my_free(msim_dir_path);
my_free(fm_dir_path);
my_free(sdc_dir_path);
my_free(tcl_dir_path);
my_free(top_netlist_file);
my_free(top_netlist_path);
my_free(submodule_dir_path);
return;
}
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