From d2df92448a7aaaff9ae72f99bf4bcd00a6e55d8c Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Tue, 21 Nov 2023 17:14:58 -0600
Subject: rtl/gfx: implement SP issue

---
 rtl/gfx/gfx_sp.sv | 37 ++++++++++++++++++++-----------------
 1 file changed, 20 insertions(+), 17 deletions(-)

(limited to 'rtl/gfx/gfx_sp.sv')

diff --git a/rtl/gfx/gfx_sp.sv b/rtl/gfx/gfx_sp.sv
index 4adac7e..ce0f9ff 100644
--- a/rtl/gfx/gfx_sp.sv
+++ b/rtl/gfx/gfx_sp.sv
@@ -20,6 +20,7 @@ module gfx_sp
 	input  logic     program_start,
 	input  cmd_word  program_header_base,
 	                 program_header_size,
+	output logic     running,
 
 	input  logic     send_ready,
 	output logic     send_valid,
@@ -27,7 +28,7 @@ module gfx_sp
 	output lane_mask send_mask
 );
 
-	logic batch_start, clear_lanes, insn_valid, running;
+	logic batch_start, clear_lanes, insn_valid;
 	cmd_word batch_length;
 	insn_word insn;
 	vram_insn_addr batch_base;
@@ -47,6 +48,14 @@ module gfx_sp
 		.*
 	);
 
+	logic deco_ready, combiner_issue_valid, shuffler_issue_valid, stream_issue_valid;
+	vreg_num rd_a_reg, rd_b_reg;
+
+	gfx_sp_issue issue
+	(
+		.*
+	);
+
 	logic recv_valid;
 	lane_word recv_data;
 	lane_mask recv_mask;
@@ -60,43 +69,40 @@ module gfx_sp
 		.*
 	);
 
-	logic shuffler_wb_valid;
+	logic shuffler_issue_ready, shuffler_wb_valid;
 	wb_op shuffler_wb;
 
 	gfx_sp_shuffler shuffler
 	(
 		.wb(shuffler_wb),
-		.deco(),
-		.in_ready(),
-		.in_valid(0),
+		.in_ready(shuffler_issue_ready),
+		.in_valid(shuffler_issue_valid),
 		.wb_ready(shuffler_wb_ready),
 		.wb_valid(shuffler_wb_valid),
 		.*
 	);
 
-	logic combiner_wb_valid;
+	logic combiner_issue_ready, combiner_wb_valid;
 	wb_op combiner_wb;
 
 	gfx_sp_combiner combiner
 	(
 		.wb(combiner_wb),
-		.deco(),
-		.in_ready(),
-		.in_valid(0),
+		.in_ready(combiner_issue_ready),
+		.in_valid(combiner_issue_valid),
 		.wb_ready(combiner_wb_ready),
 		.wb_valid(combiner_wb_valid),
 		.*
 	);
 
-	logic recv_ready, stream_wb_valid;
+	logic recv_ready, stream_issue_ready, stream_wb_valid;
 	wb_op stream_wb;
 
 	gfx_sp_stream stream
 	(
 		.wb(stream_wb),
-		.deco(),
-		.in_ready(),
-		.in_valid(0),
+		.in_ready(stream_issue_ready),
+		.in_valid(stream_issue_valid),
 		.wb_ready(stream_wb_ready),
 		.wb_valid(stream_wb_valid),
 		.*
@@ -115,14 +121,11 @@ module gfx_sp
 
 	gfx_sp_regs regs
 	(
-		.rd_a_reg(),
-		.rd_b_reg(),
 		.rd_a_data(a),
 		.rd_b_data(b),
 		.*
 	);
 
-	logic batch_end, deco_ready;
-	assign deco_ready = 1;
+	logic batch_end;
 
 endmodule
-- 
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