code refactoring for Vivado compatibility

hw/rtl/interfaces/VX_perf_pipeline_if.sv

@@ -0,0 +1,44 @@
+`ifndef VX_PERF_PIPELINE_IF
+`define VX_PERF_PIPELINE_IF
+
+`include "VX_define.vh"
+
+interface VX_perf_pipeline_if ();
+
+    wire [`PERF_CTR_BITS-1:0]     ibf_stalls;
+    wire [`PERF_CTR_BITS-1:0]     scb_stalls;
+    wire [`PERF_CTR_BITS-1:0]     lsu_stalls;
+    wire [`PERF_CTR_BITS-1:0]     csr_stalls;
+    wire [`PERF_CTR_BITS-1:0]     alu_stalls;
+`ifdef EXT_F_ENABLE
+    wire [`PERF_CTR_BITS-1:0]     fpu_stalls;
+`endif
+    wire [`PERF_CTR_BITS-1:0]     gpu_stalls;
+
+    modport master (
+        output ibf_stalls,
+        output scb_stalls,
+        output lsu_stalls,
+        output csr_stalls,
+        output alu_stalls,
+    `ifdef EXT_F_ENABLE
+        output fpu_stalls,
+    `endif
+        output gpu_stalls
+    );
+
+    modport slave (
+        input ibf_stalls,
+        input scb_stalls,
+        input lsu_stalls,
+        input csr_stalls,
+        input alu_stalls,
+    `ifdef EXT_F_ENABLE
+        input fpu_stalls,
+    `endif
+        input gpu_stalls
+    );
+
+endinterface
+
+`endif