pipeline refactoring

hw/rtl/interfaces/VX_gpu_req_if.v

@@ -0,0 +1,21 @@
+`ifndef VX_GPU_REQ_IF
+`define VX_GPU_REQ_IF
+
+`include "VX_define.vh"
+
+interface VX_gpu_req_if();
+
+    wire [`NUM_THREADS-1:0]  valid;
+    wire [`NW_BITS-1:0]      warp_num;
+    wire [31:0]              next_PC;
+
+    wire [`GPU_BITS-1:0]     gpu_op;
+
+    wire [`NUM_THREADS-1:0][31:0] rs1_data;
+    wire [31:0]              rs2_data;
+    
+    wire                     ready;
+
+endinterface
+
+`endif