Remove clkpart

2 files changed, 0 insertions, 309 deletions

diff --git a/passes/hierarchy/Makefile.inc b/passes/hierarchy/Makefile.inc
index ea809ec08..b3f139b72 100644
--- a/passes/hierarchy/Makefile.inc
+++ b/passes/hierarchy/Makefile.inc
@@ -2,5 +2,4 @@
 OBJS += passes/hierarchy/hierarchy.o
 OBJS += passes/hierarchy/uniquify.o
 OBJS += passes/hierarchy/submod.o
-OBJS += passes/hierarchy/clkpart.o
 
diff --git a/passes/hierarchy/clkpart.cc b/passes/hierarchy/clkpart.cc
deleted file mode 100644
index 2d295e915..000000000
--- a/passes/hierarchy/clkpart.cc
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
- *  yosys -- Yosys Open SYnthesis Suite
- *
- *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
- *                2019  Eddie Hung <eddie@fpgeh.com>
- *
- *  Permission to use, copy, modify, and/or distribute this software for any
- *  purpose with or without fee is hereby granted, provided that the above
- *  copyright notice and this permission notice appear in all copies.
- *
- *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- */
-
-#include "kernel/register.h"
-#include "kernel/sigtools.h"
-#include "kernel/celltypes.h"
-#include "kernel/rtlil.h"
-#include "kernel/log.h"
-
-USING_YOSYS_NAMESPACE
-PRIVATE_NAMESPACE_BEGIN
-
-struct ClkPartPass : public Pass {
-	ClkPartPass() : Pass("clkpart", "partition design according to clock/enable domain") { }
-	void help() YS_OVERRIDE
-	{
-		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
-		log("\n");
-		log("    clkpart [options] [selection]\n");
-		log("\n");
-		log("Partition the contents of selected modules according to the clock (and optionally\n");
-		log("the enable) domains of its $_DFF* cells by extracting them into sub-modules,\n");
-		log("using the `submod` command.\n");
-		log("\n");
-		log("    -set_attr <name> <value>\n");
-		log("        set the specified attribute on all sub-modules created.\n");
-		log("\n");
-		log("    -unpart <name>\n");
-		log("        undo this operation within the selected modules, by flattening those\n");
-		log("        attached with an <name> attribute into those modules without this\n");
-		log("        attribute.\n");
-		log("\n");
-		log("    -enable\n");
-		log("        also consider enable domains.\n");
-		log("\n");
-	}
-
-	bool unpart_mode, enable_mode;
-	IdString attr_name;
-	Const attr_value;
-
-	void clear_flags() YS_OVERRIDE
-	{
-		unpart_mode = false;
-		enable_mode = false;
-		attr_name = IdString();
-		attr_value = Const();
-	}
-	void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
-	{
-		log_header(design, "Executing CLKPART pass (partition design according to clock/enable domain).\n");
-		log_push();
-
-		clear_flags();
-
-		size_t argidx;
-		for (argidx = 1; argidx < args.size(); argidx++)
-		{
-			if (args[argidx] == "-set_attr" && argidx+2 < args.size()) {
-				attr_name = RTLIL::escape_id(args[++argidx]);
-				attr_value = args[argidx++];
-				continue;
-			}
-			if (args[argidx] == "-unpart" && argidx+1 < args.size()) {
-				unpart_mode = true;
-				attr_name = RTLIL::escape_id(args[++argidx]);
-				continue;
-			}
-			if (args[argidx] == "-enable") {
-				enable_mode = true;
-				continue;
-			}
-			break;
-		}
-		extra_args(args, argidx, design);
-
-		if (unpart_mode)
-			unpart(design);
-		else
-			part(design);
-
-		log_pop();
-	}
-
-	void part(RTLIL::Design *design)
-	{
-		CellTypes ct(design);
-		SigMap assign_map;
-		std::vector<std::string> new_submods;
-
-		log_header(design, "Summary of detected clock domains:\n");
-		for (auto mod : design->selected_modules())
-		{
-			if (mod->processes.size() > 0) {
-				log("Skipping module %s as it contains processes.\n", log_id(mod));
-				continue;
-			}
-
-			assign_map.set(mod);
-
-			std::vector<RTLIL::Cell*> all_cells = mod->selected_cells();
-			pool<RTLIL::Cell*> unassigned_cells(all_cells.begin(), all_cells.end());
-
-			pool<RTLIL::Cell*> expand_queue, next_expand_queue;
-			pool<RTLIL::Cell*> expand_queue_up, next_expand_queue_up;
-			pool<RTLIL::Cell*> expand_queue_down, next_expand_queue_down;
-
-			typedef tuple<bool, RTLIL::SigSpec, bool, RTLIL::SigSpec> clkdomain_t;
-			std::map<clkdomain_t, vector<Cell*>> assigned_cells;
-			std::map<RTLIL::Cell*, clkdomain_t> assigned_cells_reverse;
-
-			std::map<RTLIL::Cell*, std::set<RTLIL::SigBit>> cell_to_bit, cell_to_bit_up, cell_to_bit_down;
-			std::map<RTLIL::SigBit, std::set<RTLIL::Cell*>> bit_to_cell, bit_to_cell_up, bit_to_cell_down;
-
-			for (auto cell : all_cells)
-			{
-				clkdomain_t key;
-
-				for (auto &conn : cell->connections())
-				for (auto bit : conn.second) {
-					bit = assign_map(bit);
-					if (bit.wire != nullptr) {
-						cell_to_bit[cell].insert(bit);
-						bit_to_cell[bit].insert(cell);
-						if (ct.cell_input(cell->type, conn.first)) {
-							cell_to_bit_up[cell].insert(bit);
-							bit_to_cell_down[bit].insert(cell);
-						}
-						if (ct.cell_output(cell->type, conn.first)) {
-							cell_to_bit_down[cell].insert(bit);
-							bit_to_cell_up[bit].insert(cell);
-						}
-					}
-				}
-
-				if (cell->type.in(ID($_DFF_N_), ID($_DFF_P_)))
-				{
-					key = clkdomain_t(cell->type == ID($_DFF_P_), assign_map(cell->getPort(ID(C))), true, RTLIL::SigSpec());
-				}
-				else
-				if (cell->type.in(ID($_DFFE_NN_), ID($_DFFE_NP_), ID($_DFFE_PN_), ID($_DFFE_PP_)))
-				{
-					bool this_clk_pol = cell->type.in(ID($_DFFE_PN_), ID($_DFFE_PP_));
-					bool this_en_pol = !enable_mode || cell->type.in(ID($_DFFE_NP_), ID($_DFFE_PP_));
-					key = clkdomain_t(this_clk_pol, assign_map(cell->getPort(ID(C))), this_en_pol, enable_mode ? assign_map(cell->getPort(ID(E))) : RTLIL::SigSpec());
-				}
-				else
-				if (cell->type.in(ID($_DFF_NN0_), ID($_DFF_NN1_), ID($_DFF_NP0_), ID($_DFF_NP1_),
-							ID($_DFF_PN0_), ID($_DFF_PN1_), ID($_DFF_PP0_), ID($_DFF_PP1_)))
-				{
-					bool this_clk_pol = cell->type.in(ID($_DFF_PN0_), ID($_DFF_PN1_), ID($_DFF_PP0_), ID($_DFF_PP1_));
-					log_assert(!enable_mode); // TODO
-					key = clkdomain_t(this_clk_pol, assign_map(cell->getPort(ID(C))), true, RTLIL::SigSpec());
-				}
-				else
-					continue;
-
-				unassigned_cells.erase(cell);
-				expand_queue.insert(cell);
-				expand_queue_up.insert(cell);
-				expand_queue_down.insert(cell);
-
-				assigned_cells[key].push_back(cell);
-				assigned_cells_reverse[cell] = key;
-			}
-
-			while (!expand_queue_up.empty() || !expand_queue_down.empty())
-			{
-				if (!expand_queue_up.empty())
-				{
-					RTLIL::Cell *cell = *expand_queue_up.begin();
-					clkdomain_t key = assigned_cells_reverse.at(cell);
-					expand_queue_up.erase(cell);
-
-					for (auto bit : cell_to_bit_up[cell])
-					for (auto c : bit_to_cell_up[bit])
-						if (unassigned_cells.count(c)) {
-							unassigned_cells.erase(c);
-							next_expand_queue_up.insert(c);
-							assigned_cells[key].push_back(c);
-							assigned_cells_reverse[c] = key;
-							expand_queue.insert(c);
-						}
-				}
-
-				if (!expand_queue_down.empty())
-				{
-					RTLIL::Cell *cell = *expand_queue_down.begin();
-					clkdomain_t key = assigned_cells_reverse.at(cell);
-					expand_queue_down.erase(cell);
-
-					for (auto bit : cell_to_bit_down[cell])
-					for (auto c : bit_to_cell_down[bit])
-						if (unassigned_cells.count(c)) {
-							unassigned_cells.erase(c);
-							next_expand_queue_up.insert(c);
-							assigned_cells[key].push_back(c);
-							assigned_cells_reverse[c] = key;
-							expand_queue.insert(c);
-						}
-				}
-
-				if (expand_queue_up.empty() && expand_queue_down.empty()) {
-					expand_queue_up.swap(next_expand_queue_up);
-					expand_queue_down.swap(next_expand_queue_down);
-				}
-			}
-
-			while (!expand_queue.empty())
-			{
-				RTLIL::Cell *cell = *expand_queue.begin();
-				clkdomain_t key = assigned_cells_reverse.at(cell);
-				expand_queue.erase(cell);
-
-				for (auto bit : cell_to_bit.at(cell)) {
-					for (auto c : bit_to_cell[bit])
-						if (unassigned_cells.count(c)) {
-							unassigned_cells.erase(c);
-							next_expand_queue.insert(c);
-							assigned_cells[key].push_back(c);
-							assigned_cells_reverse[c] = key;
-						}
-					bit_to_cell[bit].clear();
-				}
-
-				if (expand_queue.empty())
-					expand_queue.swap(next_expand_queue);
-			}
-
-			clkdomain_t key(true, RTLIL::SigSpec(), true, RTLIL::SigSpec());
-			for (auto cell : unassigned_cells) {
-				assigned_cells[key].push_back(cell);
-				assigned_cells_reverse[cell] = key;
-			}
-
-			clkdomain_t largest_domain;
-			int largest_domain_size = 0;
-			log("  module %s\n", mod->name.c_str());
-			for (auto &it : assigned_cells) {
-				log("    %d cells in clk=%s%s, en=%s%s\n", GetSize(it.second),
-						std::get<0>(it.first) ? "" : "!", log_signal(std::get<1>(it.first)),
-						std::get<2>(it.first) ? "" : "!", log_signal(std::get<3>(it.first)));
-				if (GetSize(it.second) > largest_domain_size) {
-					largest_domain = it.first;
-					largest_domain_size = GetSize(it.second);
-				}
-			}
-
-			for (auto &it : assigned_cells) {
-				if (it.first == largest_domain)
-					continue;
-
-				auto clk = std::get<1>(it.first);
-				auto en = std::get<3>(it.first);
-				std::string submod = stringf("clk=%s%s%s%s%s",
-						std::get<0>(it.first) ? "" : "!", clk.empty() ? "" : log_signal(clk),
-						std::get<2>(it.first) ? "" : "!", en.empty() ? "" : ".en=", en.empty() ? "" : log_signal(en));
-				for (auto c : it.second)
-					c->attributes[ID(submod)] = submod;
-				new_submods.push_back(stringf("%s_%s", mod->name.c_str(), submod.c_str()));
-			}
-		}
-
-		Pass::call(design, "submod -hidden");
-
-		if (!attr_name.empty())
-			for (auto m : new_submods)
-				design->module(m)->attributes[attr_name] = attr_value;
-	}
-
-	void unpart(RTLIL::Design *design)
-	{
-		vector<Module*> keeped;
-		for (auto mod : design->selected_modules()) {
-			if (mod->get_bool_attribute(attr_name))
-				continue;
-			if (mod->get_bool_attribute(ID(keep_hierarchy)))
-				continue;
-			keeped.push_back(mod);
-			mod->set_bool_attribute(ID(keep_hierarchy));
-		}
-
-		Pass::call(design, "flatten");
-
-		for (auto mod : keeped)
-			mod->set_bool_attribute(ID(keep_hierarchy), false);
-
-	}
-} ClkPartPass;
-
-PRIVATE_NAMESPACE_END