synth_quicklogic: add -dspv2 to opt into v2 DSP blocks

techlibs/quicklogic/Makefile.inc

@@ -38,9 +38,11 @@ $(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf
 $(eval $(call add_gen_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/bram_types_sim.v))
 $(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/cells_sim.v))
 $(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/ffs_map.v))
-$(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/dsp_sim.v))
+$(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/dspv1_sim.v))
-$(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/dsp_map.v))
+$(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/dspv1_map.v))
-$(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/dsp_final_map.v))
+$(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/dspv1_final_map.v))
+$(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/dspv2_sim.v))
+$(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/dspv2_map.v))
 $(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/TDP18K_FIFO.v))
 $(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/ufifo_ctl.v))
 $(eval $(call add_share_file,share/quicklogic/qlf_k6n10f,techlibs/quicklogic/qlf_k6n10f/sram1024x18_mem.v))

techlibs/quicklogic/qlf_k6n10f/dspv1_map.v

@@ -0,0 +1,102 @@
+// Copyright 2020-2022 F4PGA Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// SPDX-License-Identifier: Apache-2.0
+
+module \$__QL_MUL20X18 (input [19:0] A, input [17:0] B, output [37:0] Y);
+    parameter A_SIGNED = 0;
+    parameter B_SIGNED = 0;
+    parameter A_WIDTH = 0;
+    parameter B_WIDTH = 0;
+    parameter Y_WIDTH = 0;
+
+    wire [19:0] a;
+    wire [17:0] b;
+    wire [37:0] z;
+
+    assign a = (A_WIDTH == 20) ? A :
+               (A_SIGNED) ? {{(20 - A_WIDTH){A[A_WIDTH-1]}}, A} :
+                            {{(20 - A_WIDTH){1'b0}},         A};
+
+    assign b = (B_WIDTH == 18) ? B :
+               (B_SIGNED) ? {{(18 - B_WIDTH){B[B_WIDTH-1]}}, B} :
+                            {{(18 - B_WIDTH){1'b0}},         B};
+
+    (* is_inferred=1 *)
+    dsp_t1_20x18x64_cfg_ports _TECHMAP_REPLACE_ (
+        .a_i                (a),
+        .b_i                (b),
+        .acc_fir_i          (6'd0),
+        .z_o                (z),
+
+        .feedback_i         (3'd0),
+        .load_acc_i         (1'b0),
+        .unsigned_a_i       (!A_SIGNED),
+        .unsigned_b_i       (!B_SIGNED),
+
+        .output_select_i    (3'd0),
+        .saturate_enable_i  (1'b0),
+        .shift_right_i      (6'd0),
+        .round_i            (1'b0),
+        .subtract_i         (1'b0),
+        .register_inputs_i  (1'b0)
+    );
+
+    assign Y = z;
+
+endmodule
+
+module \$__QL_MUL10X9 (input [9:0] A, input [8:0] B, output [18:0] Y);
+    parameter A_SIGNED = 0;
+    parameter B_SIGNED = 0;
+    parameter A_WIDTH = 0;
+    parameter B_WIDTH = 0;
+    parameter Y_WIDTH = 0;
+
+    wire [ 9:0] a;
+    wire [ 8:0] b;
+    wire [18:0] z;
+
+    assign a = (A_WIDTH == 10) ? A :
+               (A_SIGNED) ? {{(10 - A_WIDTH){A[A_WIDTH-1]}}, A} :
+                            {{(10 - A_WIDTH){1'b0}},         A};
+
+    assign b = (B_WIDTH ==  9) ? B :
+               (B_SIGNED) ? {{( 9 - B_WIDTH){B[B_WIDTH-1]}}, B} :
+                            {{( 9 - B_WIDTH){1'b0}},         B};
+
+    (* is_inferred=1 *)
+    dsp_t1_10x9x32_cfg_ports _TECHMAP_REPLACE_ (
+        .a_i                (a),
+        .b_i                (b),
+        .acc_fir_i          (6'd0),
+        .z_o                (z),
+
+        .feedback_i         (3'd0),
+        .load_acc_i         (1'b0),
+        .unsigned_a_i       (!A_SIGNED),
+        .unsigned_b_i       (!B_SIGNED),
+
+        .output_select_i    (3'd0),
+        .saturate_enable_i  (1'b0),
+        .shift_right_i      (6'd0),
+        .round_i            (1'b0),
+        .subtract_i         (1'b0),
+        .register_inputs_i  (1'b0)
+    );
+
+
+    assign Y = z;
+
+endmodule

techlibs/quicklogic/synth_quicklogic.cc

@@ -27,6 +27,12 @@ PRIVATE_NAMESPACE_BEGIN
 
 struct SynthQuickLogicPass : public ScriptPass {
 
+	enum DSPKind {
+		None,
+		V1,
+		V2,
+	};
+
 	SynthQuickLogicPass() : ScriptPass("synth_quicklogic", "Synthesis for QuickLogic FPGAs") {}
 
 	void help() override
@@ -50,6 +56,10 @@ struct SynthQuickLogicPass : public ScriptPass {
 		log("        do not use dsp_t1_* to implement multipliers and associated logic\n");
 		log("        (qlf_k6n10f only).\n");
 		log("\n");
+		log("    -dspv2\n");
+		log("        synthesize for the v2 DSP block model instead of v1\n");
+		log("        (qlf_k6n10f only).\n");
+		log("\n");
 		log("    -nocarry\n");
 		log("        do not use adder_carry cells in output netlist.\n");
 		log("\n");
@@ -78,7 +88,8 @@ struct SynthQuickLogicPass : public ScriptPass {
 	}
 
 	string top_opt, blif_file, edif_file, family, currmodule, verilog_file, lib_path;
-	bool abc9, inferAdder, nobram, bramTypes, dsp;
+	bool abc9, inferAdder, nobram, bramTypes;
+	DSPKind dsp;
 
 	void clear_flags() override
 	{
@@ -93,7 +104,7 @@ struct SynthQuickLogicPass : public ScriptPass {
 		nobram = false;
 		bramTypes = false;
 		lib_path = "+/quicklogic/";
-		dsp = true;
+		dsp = V1;
 	}
 
 	void set_scratchpad_defaults(RTLIL::Design *design) {
@@ -155,7 +166,11 @@ struct SynthQuickLogicPass : public ScriptPass {
 				continue;
 			}
 			if (args[argidx] == "-nodsp" || args[argidx] == "-no_dsp") {
-				dsp = false;
+				dsp = None;
+				continue;
+			}
+			if (args[argidx] == "-dspv2") {
+				dsp = V2;
 				continue;
 			}
 			break;
@@ -193,8 +208,10 @@ struct SynthQuickLogicPass : public ScriptPass {
 				read_simlibs += stringf(" %sqlf_k6n10f/brams_sim.v", lib_path.c_str());
 				if (bramTypes)
 					read_simlibs += stringf(" %sqlf_k6n10f/bram_types_sim.v", lib_path.c_str());
-				if (dsp)
+				if (dsp == V1)
-					read_simlibs += stringf(" %sqlf_k6n10f/dsp_sim.v", lib_path.c_str());
+					read_simlibs += stringf(" %sqlf_k6n10f/dspv1_sim.v", lib_path.c_str());
+				else if (dsp == V2)
+					read_simlibs += stringf(" %sqlf_k6n10f/dspv2_sim.v", lib_path.c_str());
 			}
 			run(read_simlibs);
 			run(stringf("hierarchy -check %s", help_mode ? "-top <top>" : top_opt.c_str()));
@@ -220,23 +237,31 @@ struct SynthQuickLogicPass : public ScriptPass {
 		}
 
 		if (check_label("map_dsp", "(for qlf_k6n10f, skip if -nodsp)")
-				&& ((dsp && family == "qlf_k6n10f") || help_mode)) {
+				&& (((dsp != None) && family == "qlf_k6n10f") || help_mode)) {
 			run("wreduce t:$mul");
-			//run("ql_dsp_macc");
 
+			if (dsp == V1) {
+				run("ql_dsp_macc");
 
-			run("techmap -map +/mul2dsp.v -map " + lib_path + family + "/dsp_map.v -D USE_DSP_CFG_PARAMS=0 -D DSP_SIGNEDONLY "
+				run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=20 -D DSP_B_MAXWIDTH=18 -D DSP_A_MINWIDTH=11 -D DSP_B_MINWIDTH=10 -D DSP_NAME=$__QL_MUL20X18");
-				"-D DSP_A_MAXWIDTH=32 -D DSP_B_MAXWIDTH=18 -D DSP_A_MINWIDTH=10 -D DSP_B_MINWIDTH=10 -D DSP_NAME=$__MUL32X18");
+				run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=10 -D DSP_B_MAXWIDTH=9 -D DSP_A_MINWIDTH=4 -D DSP_B_MINWIDTH=4 -D DSP_NAME=$__QL_MUL10X9");
-			run("chtype -set $mul t:$__soft_mul");
+				run("chtype -set $mul t:$__soft_mul");
-			run("techmap -map +/mul2dsp.v -map " + lib_path + family + "/dsp_map.v -D USE_DSP_CFG_PARAMS=0 -D DSP_SIGNEDONLY "
-				"-D DSP_A_MAXWIDTH=16 -D DSP_B_MAXWIDTH=9 -D DSP_A_MINWIDTH=4 -D DSP_B_MINWIDTH=4 -D DSP_NAME=$__MUL16X9");
-			run("chtype -set $mul t:$__soft_mul");
 
-			run("ql_dsp");
+				run("techmap -map " + lib_path + family + "/dspv1_map.v -D USE_DSP_CFG_PARAMS=0");
-
+				run("ql_dsp_simd");
-			//run("ql_dsp_simd");
+				run("techmap -map " + lib_path + family + "/dspv1_final_map.v");
-			//run("techmap -map " + lib_path + family + "/dsp_final_map.v");
+				run("ql_dsp_io_regs");
-			//run("ql_dsp_io_regs");
+			} else if (dsp == V2) {
+				run("techmap -map +/mul2dsp.v -map " + lib_path + family + "/dspv2_map.v -D USE_DSP_CFG_PARAMS=0 -D DSP_SIGNEDONLY "
+					"-D DSP_A_MAXWIDTH=32 -D DSP_B_MAXWIDTH=18 -D DSP_A_MINWIDTH=10 -D DSP_B_MINWIDTH=10 -D DSP_NAME=$__MUL32X18");
+				run("chtype -set $mul t:$__soft_mul");
+				run("techmap -map +/mul2dsp.v -map " + lib_path + family + "/dspv2_map.v -D USE_DSP_CFG_PARAMS=0 -D DSP_SIGNEDONLY "
+					"-D DSP_A_MAXWIDTH=16 -D DSP_B_MAXWIDTH=9 -D DSP_A_MINWIDTH=4 -D DSP_B_MINWIDTH=4 -D DSP_NAME=$__MUL16X9");
+				run("chtype -set $mul t:$__soft_mul");
+				run("ql_dspv2");
+			} else {
+				log_assert(false);
+			}
 		}
 
 		if (check_label("coarse")) {

tests/arch/quicklogic/dspv2/complex_mult.ys

@@ -12,7 +12,7 @@ module top(input signed [16:0] ar, input signed [16:0] ai, input signed [16:0] b
 endmodule
 EOF
 
-synth_quicklogic -family qlf_k6n10f -run :coarse
+synth_quicklogic -family qlf_k6n10f -dspv2 -run :coarse
 check -assert
 read_verilog +/quicklogic/qlf_k6n10f/dsp_sim.v
 prep -top top -flatten

tests/arch/quicklogic/dspv2/simple.ys

@@ -11,7 +11,7 @@ module top(input [16:0] a, input [16:0] b, output reg [33:0] o, input clk, input
 endmodule
 EOF
 
-synth_quicklogic -family qlf_k6n10f -run :coarse
+synth_quicklogic -family qlf_k6n10f -dspv2 -run :coarse
 check
 opt_clean
 dump

tests/arch/quicklogic/dspv2/simple2.ys

@@ -5,7 +5,7 @@ module top(input [16:0] a, input [16:0] b, input [16:0] c, input [16:0] d, outpu
 endmodule
 EOF
 
-synth_quicklogic -family qlf_k6n10f -run :coarse
+synth_quicklogic -family qlf_k6n10f -dspv2 -run :coarse
 read_verilog +/quicklogic/qlf_k6n10f/dsp_sim.v
 prep -top top -flatten
 opt_clean -purge