82 lines
4.2 KiB
C++
82 lines
4.2 KiB
C++
/********************************************************************
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* This file includes functions to compress the hierachy of routing architecture
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*******************************************************************/
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/* Headers from vtrutil library */
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#include "vtr_time.h"
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#include "vtr_log.h"
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#include "device_rr_gsb.h"
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#include "device_rr_gsb_utils.h"
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#include "build_device_module.h"
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#include "openfpga_build_fabric.h"
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/* Include global variables of VPR */
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#include "globals.h"
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/* begin namespace openfpga */
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namespace openfpga {
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/********************************************************************
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* Identify the unique GSBs from the Device RR GSB arrays
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* This function should only be called after the GSB builder is done
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*******************************************************************/
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static
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void compress_routing_hierarchy(OpenfpgaContext& openfpga_ctx,
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const bool& verbose_output) {
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vtr::ScopedStartFinishTimer timer("Identify unique General Switch Blocks (GSBs)");
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/* Build unique module lists */
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openfpga_ctx.mutable_device_rr_gsb().build_unique_module(g_vpr_ctx.device().rr_graph);
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/* Report the stats */
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VTR_LOGV(verbose_output,
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"Detected %lu unique X-direction connection blocks from a total of %d (compression rate=%d%)\n",
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openfpga_ctx.device_rr_gsb().get_num_cb_unique_module(CHANX),
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find_device_rr_gsb_num_cb_modules(openfpga_ctx.device_rr_gsb(), CHANX),
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100 * (openfpga_ctx.device_rr_gsb().get_num_cb_unique_module(CHANX) / find_device_rr_gsb_num_cb_modules(openfpga_ctx.device_rr_gsb(), CHANX) - 1));
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VTR_LOGV(verbose_output,
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"Detected %lu unique Y-direction connection blocks from a total of %d (compression rate=%d%)\n",
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openfpga_ctx.device_rr_gsb().get_num_cb_unique_module(CHANY),
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find_device_rr_gsb_num_cb_modules(openfpga_ctx.device_rr_gsb(), CHANY),
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100 * (openfpga_ctx.device_rr_gsb().get_num_cb_unique_module(CHANY) / find_device_rr_gsb_num_cb_modules(openfpga_ctx.device_rr_gsb(), CHANY) - 1));
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VTR_LOGV(verbose_output,
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"Detected %lu unique switch blocks from a total of %d (compression rate=%d%)\n",
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openfpga_ctx.device_rr_gsb().get_num_sb_unique_module(),
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find_device_rr_gsb_num_sb_modules(openfpga_ctx.device_rr_gsb()),
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100 * (openfpga_ctx.device_rr_gsb().get_num_sb_unique_module() / find_device_rr_gsb_num_sb_modules(openfpga_ctx.device_rr_gsb()) - 1));
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VTR_LOGV(verbose_output,
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"Detected %lu unique general switch blocks from a total of %d (compression rate=%d%)\n",
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openfpga_ctx.device_rr_gsb().get_num_gsb_unique_module(),
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find_device_rr_gsb_num_gsb_modules(openfpga_ctx.device_rr_gsb()),
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100 * (openfpga_ctx.device_rr_gsb().get_num_gsb_unique_module() / find_device_rr_gsb_num_gsb_modules(openfpga_ctx.device_rr_gsb()) - 1));
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}
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/********************************************************************
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* Build the module graph for FPGA device
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*******************************************************************/
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void build_fabric(OpenfpgaContext& openfpga_ctx,
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const Command& cmd, const CommandContext& cmd_context) {
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CommandOptionId opt_compress_routing = cmd.option("compress_routing");
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CommandOptionId opt_duplicate_grid_pin = cmd.option("duplicate_grid_pin");
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CommandOptionId opt_verbose = cmd.option("verbose");
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if (true == cmd_context.option_enable(cmd, opt_compress_routing)) {
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compress_routing_hierarchy(openfpga_ctx, cmd_context.option_enable(cmd, opt_verbose));
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}
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VTR_LOG("\n");
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openfpga_ctx.mutable_module_graph() = build_device_module_graph(openfpga_ctx.mutable_io_location_map(),
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g_vpr_ctx.device(),
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const_cast<const OpenfpgaContext&>(openfpga_ctx),
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cmd_context.option_enable(cmd, opt_compress_routing),
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cmd_context.option_enable(cmd, opt_duplicate_grid_pin),
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cmd_context.option_enable(cmd, opt_verbose));
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}
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} /* end namespace openfpga */
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