1 files changed, 51 insertions, 0 deletions
diff --git a/rtl/gfx/gfx_wb.sv b/rtl/gfx/gfx_wb.sv
new file mode 100644
index 0000000..20c7c64
--- /dev/null
+++ b/rtl/gfx/gfx_wb.sv
@@ -0,0 +1,51 @@
+interface gfx_wb;
+
+	import gfx::*;
+
+	word lanes[SHADER_LANES];
+	logic mask_update, pc_inc, pc_update, ready, scalar, valid, writeback;
+	group_id group;
+	xgpr_num dest;
+	lane_mask mask;
+	pc_offset pc_add;
+
+	modport tx
+	(
+		input  ready,
+
+		output dest,
+		       group,
+		       lanes,
+		       valid,
+		       scalar,
+		       writeback,
+
+		       mask,
+		       mask_update,
+
+		       pc_add,
+		       pc_inc,
+		       pc_update
+	);
+
+	modport rx
+	(
+		input  dest,
+		       group,
+		       lanes,
+		       valid,
+		       scalar,
+		       writeback,
+
+		       mask,
+		       mask_update,
+
+		       pc_add,
+		       pc_inc,
+		       pc_update,
+
+		output ready
+	);
+
+
+endinterface