From de49ebb80d1e2ef8283818332a0ac6bf5d70440d Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Sun, 12 May 2024 13:28:53 -0600
Subject: platform/wavelet3d: implement JTAG TAP bridge in simulation

---
 platform/wavelet3d/w3d_top.sv | 103 ++++--------------------------------------
 1 file changed, 8 insertions(+), 95 deletions(-)

(limited to 'platform/wavelet3d/w3d_top.sv')

diff --git a/platform/wavelet3d/w3d_top.sv b/platform/wavelet3d/w3d_top.sv
index 0875ba2..2b24ec4 100644
--- a/platform/wavelet3d/w3d_top.sv
+++ b/platform/wavelet3d/w3d_top.sv
@@ -1,92 +1,25 @@
 module w3d_top
-import gfx::*;
 (
 	input  logic clk,
 	             rst_n,
 
-	input  word  a[SHADER_LANES],
-	             b[SHADER_LANES],
-	input  logic in_valid,
-	             setup_mul_float,
-	             setup_unit_b,
-	             mnorm_put_hi,
-	             mnorm_put_lo,
-	             mnorm_put_mul,
-	             mnorm_zero_b,
-	             mnorm_zero_flags,
-	             minmax_abs,
-	             minmax_swap,
-	             minmax_zero_min,
-	             minmax_copy_flags,
-	             shiftr_int_signed,
-	             addsub_copy_flags,
-	             addsub_int_operand,
-	             clz_force_nop,
-	             shiftl_copy_flags,
-	             round_copy_flags,
-	             round_enable,
-	             encode_enable,
+	input  logic jtag_tck,
+	             jtag_tms,
+	             jtag_tdi,
 
-	output logic out_valid,
-	output word  q[SHADER_LANES],
-
-	input  word  geom_tdata,
-	input  logic geom_tlast,
-	             geom_tvalid,
-	output logic geom_tready,
-
-	input  logic raster_tready,
-	output logic raster_tlast,
-	             raster_tvalid,
-	output word  raster_tdata
+	output logic jtag_tdo
 );
 
-	gfx_wb fpint_wb();
 	if_tap host_jtag();
 	if_axib dram(), host_dbus(), host_ibus();
 	if_axil external_io(), gfx_ctrl();
-	if_pkts coverage(), geometry();
-	gfx_regfile_io fpint_io();
 
 	logic srst_n;
 
-	assign q = fpint_wb.rx.lanes;
-	assign out_valid = fpint_wb.rx.valid;
-
-	assign geometry.tx.tdata = geom_tdata;
-	assign geometry.tx.tlast = geom_tlast;
-	assign geometry.tx.tvalid = geom_tvalid;
-	assign geom_tready = geometry.tx.tready;
-
-	assign raster_tdata = coverage.rx.tdata;
-	assign raster_tlast = coverage.rx.tlast;
-	assign raster_tvalid = coverage.rx.tvalid;
-	assign coverage.rx.tready = raster_tready;
-
-	fpint_op op;
-	assign op.writeback = 1;
-	assign op.setup_mul_float = setup_mul_float;
-	assign op.setup_unit_b = setup_unit_b;
-	assign op.mnorm_put_hi = mnorm_put_hi;
-	assign op.mnorm_put_lo = mnorm_put_lo;
-	assign op.mnorm_put_mul = mnorm_put_mul;
-	assign op.mnorm_zero_b = mnorm_zero_b;
-	assign op.mnorm_zero_flags = mnorm_zero_flags;
-	assign op.minmax_abs = minmax_abs;
-	assign op.minmax_swap = minmax_swap;
-	assign op.minmax_zero_min = minmax_zero_min;
-	assign op.minmax_copy_flags = minmax_copy_flags;
-	assign op.shiftr_int_signed = shiftr_int_signed;
-	assign op.addsub_copy_flags = addsub_copy_flags;
-	assign op.addsub_int_operand = addsub_int_operand;
-	assign op.clz_force_nop = clz_force_nop;
-	assign op.shiftl_copy_flags = shiftl_copy_flags;
-	assign op.round_copy_flags = round_copy_flags;
-	assign op.round_enable = round_enable;
-	assign op.encode_enable = encode_enable;
-
-	assign fpint_io.regs.a = a;
-	assign fpint_io.regs.b = b;
+	assign jtag_tdo = host_jtag.m.tdo;
+	assign host_jtag.m.tck = jtag_tck;
+	assign host_jtag.m.tms = jtag_tms;
+	assign host_jtag.m.tdi = jtag_tdi;
 
 	if_rst_sync rst_sync
 	(
@@ -95,26 +28,6 @@ import gfx::*;
 		.srst_n
 	);
 
-	gfx_shader_fpint fpint
-	(
-		.clk,
-		.rst_n,
-		.op,
-		.wb(fpint_wb.tx),
-		.wave(),
-		.abort(0),
-		.in_valid,
-		.read_data(fpint_io.ab)
-	);
-
-	gfx_raster raster
-	(
-		.clk,
-		.rst_n,
-		.geometry(geometry.rx),
-		.coverage(coverage.tx)
-	);
-
 	gfx_top gfx
 	(
 		.clk,
-- 
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