`include "VX_define.vh" module VX_cluster #( parameter CLUSTER_ID = 0 ) ( `SCOPE_SIGNALS_ISTAGE_IO `SCOPE_SIGNALS_LSU_IO `SCOPE_SIGNALS_CACHE_IO `SCOPE_SIGNALS_ISSUE_IO `SCOPE_SIGNALS_EXECUTE_IO // Clock input wire clk, input wire reset, // DRAM request output wire dram_req_valid, output wire dram_req_rw, output wire [`L2DRAM_BYTEEN_WIDTH-1:0] dram_req_byteen, output wire [`L2DRAM_ADDR_WIDTH-1:0] dram_req_addr, output wire [`L2DRAM_LINE_WIDTH-1:0] dram_req_data, output wire [`L2DRAM_TAG_WIDTH-1:0] dram_req_tag, input wire dram_req_ready, // DRAM response input wire dram_rsp_valid, input wire [`L2DRAM_LINE_WIDTH-1:0] dram_rsp_data, input wire [`L2DRAM_TAG_WIDTH-1:0] dram_rsp_tag, output wire dram_rsp_ready, // Snoop request input wire snp_req_valid, input wire [`L2DRAM_ADDR_WIDTH-1:0] snp_req_addr, input wire snp_req_invalidate, input wire [`L2SNP_TAG_WIDTH-1:0] snp_req_tag, output wire snp_req_ready, // Snoop response output wire snp_rsp_valid, output wire [`L2SNP_TAG_WIDTH-1:0] snp_rsp_tag, input wire snp_rsp_ready, // I/O request output wire io_req_valid, output wire io_req_rw, output wire [3:0] io_req_byteen, output wire [29:0] io_req_addr, output wire [31:0] io_req_data, output wire [`L2CORE_TAG_WIDTH-1:0] io_req_tag, input wire io_req_ready, // I/O response input wire io_rsp_valid, input wire [31:0] io_rsp_data, input wire [`L2CORE_TAG_WIDTH-1:0] io_rsp_tag, output wire io_rsp_ready, // CSR I/O Request input wire csr_io_req_valid, input wire [`NC_BITS-1:0] csr_io_req_coreid, input wire [11:0] csr_io_req_addr, input wire csr_io_req_rw, input wire [31:0] csr_io_req_data, output wire csr_io_req_ready, // CSR I/O Response output wire csr_io_rsp_valid, output wire [31:0] csr_io_rsp_data, input wire csr_io_rsp_ready, // Status output wire busy, output wire ebreak ); wire [`NUM_CORES-1:0] per_core_D_dram_req_valid; wire [`NUM_CORES-1:0] per_core_D_dram_req_rw; wire [`NUM_CORES-1:0][`DDRAM_BYTEEN_WIDTH-1:0] per_core_D_dram_req_byteen; wire [`NUM_CORES-1:0][`DDRAM_ADDR_WIDTH-1:0] per_core_D_dram_req_addr; wire [`NUM_CORES-1:0][`DDRAM_LINE_WIDTH-1:0] per_core_D_dram_req_data; wire [`NUM_CORES-1:0][`DDRAM_TAG_WIDTH-1:0] per_core_D_dram_req_tag; wire [`NUM_CORES-1:0] per_core_D_dram_req_ready; wire [`NUM_CORES-1:0] per_core_D_dram_rsp_valid; wire [`NUM_CORES-1:0][`DDRAM_LINE_WIDTH-1:0] per_core_D_dram_rsp_data; wire [`NUM_CORES-1:0][`DDRAM_TAG_WIDTH-1:0] per_core_D_dram_rsp_tag; wire [`NUM_CORES-1:0] per_core_D_dram_rsp_ready; wire [`NUM_CORES-1:0] per_core_I_dram_req_valid; wire [`NUM_CORES-1:0] per_core_I_dram_req_rw; wire [`NUM_CORES-1:0][`IDRAM_BYTEEN_WIDTH-1:0] per_core_I_dram_req_byteen; wire [`NUM_CORES-1:0][`IDRAM_ADDR_WIDTH-1:0] per_core_I_dram_req_addr; wire [`NUM_CORES-1:0][`IDRAM_LINE_WIDTH-1:0] per_core_I_dram_req_data; wire [`NUM_CORES-1:0][`IDRAM_TAG_WIDTH-1:0] per_core_I_dram_req_tag; wire [`NUM_CORES-1:0] per_core_I_dram_req_ready; wire [`NUM_CORES-1:0] per_core_I_dram_rsp_valid; wire [`NUM_CORES-1:0][`IDRAM_LINE_WIDTH-1:0] per_core_I_dram_rsp_data; wire [`NUM_CORES-1:0][`IDRAM_TAG_WIDTH-1:0] per_core_I_dram_rsp_tag; wire [`NUM_CORES-1:0] per_core_I_dram_rsp_ready; wire [`NUM_CORES-1:0] per_core_snp_req_valid; wire [`NUM_CORES-1:0][`DDRAM_ADDR_WIDTH-1:0] per_core_snp_req_addr; wire [`NUM_CORES-1:0] per_core_snp_req_invalidate; wire [`NUM_CORES-1:0][`DSNP_TAG_WIDTH-1:0] per_core_snp_req_tag; wire [`NUM_CORES-1:0] per_core_snp_req_ready; wire [`NUM_CORES-1:0] per_core_snp_rsp_valid; wire [`NUM_CORES-1:0][`DSNP_TAG_WIDTH-1:0] per_core_snp_rsp_tag; wire [`NUM_CORES-1:0] per_core_snp_rsp_ready; wire [`NUM_CORES-1:0] per_core_io_req_valid; wire [`NUM_CORES-1:0] per_core_io_req_rw; wire [`NUM_CORES-1:0][3:0] per_core_io_req_byteen; wire [`NUM_CORES-1:0][29:0] per_core_io_req_addr; wire [`NUM_CORES-1:0][31:0] per_core_io_req_data; wire [`NUM_CORES-1:0][`DCORE_TAG_WIDTH-1:0] per_core_io_req_tag; wire [`NUM_CORES-1:0] per_core_io_req_ready; wire [`NUM_CORES-1:0] per_core_io_rsp_valid; wire [`NUM_CORES-1:0][`DCORE_TAG_WIDTH-1:0] per_core_io_rsp_tag; wire [`NUM_CORES-1:0][31:0] per_core_io_rsp_data; wire [`NUM_CORES-1:0] per_core_io_rsp_ready; wire [`NUM_CORES-1:0] per_core_csr_io_req_valid; wire [`NUM_CORES-1:0][11:0] per_core_csr_io_req_addr; wire [`NUM_CORES-1:0] per_core_csr_io_req_rw; wire [`NUM_CORES-1:0][31:0] per_core_csr_io_req_data; wire [`NUM_CORES-1:0] per_core_csr_io_req_ready; wire [`NUM_CORES-1:0] per_core_csr_io_rsp_valid; wire [`NUM_CORES-1:0][31:0] per_core_csr_io_rsp_data; wire [`NUM_CORES-1:0] per_core_csr_io_rsp_ready; wire [`NUM_CORES-1:0] per_core_busy; wire [`NUM_CORES-1:0] per_core_ebreak; for (genvar i = 0; i < `NUM_CORES; i++) begin VX_core #( .CORE_ID(i + (CLUSTER_ID * `NUM_CORES)) ) core ( `SCOPE_SIGNALS_ISTAGE_BIND `SCOPE_SIGNALS_LSU_BIND `SCOPE_SIGNALS_CACHE_BIND `SCOPE_SIGNALS_ISSUE_BIND `SCOPE_SIGNALS_EXECUTE_BIND .clk (clk), .reset (reset), .D_dram_req_valid (per_core_D_dram_req_valid [i]), .D_dram_req_rw (per_core_D_dram_req_rw [i]), .D_dram_req_byteen (per_core_D_dram_req_byteen [i]), .D_dram_req_addr (per_core_D_dram_req_addr [i]), .D_dram_req_data (per_core_D_dram_req_data [i]), .D_dram_req_tag (per_core_D_dram_req_tag [i]), .D_dram_req_ready (per_core_D_dram_req_ready [i]), .D_dram_rsp_valid (per_core_D_dram_rsp_valid [i]), .D_dram_rsp_data (per_core_D_dram_rsp_data [i]), .D_dram_rsp_tag (per_core_D_dram_rsp_tag [i]), .D_dram_rsp_ready (per_core_D_dram_rsp_ready [i]), .I_dram_req_valid (per_core_I_dram_req_valid [i]), .I_dram_req_rw (per_core_I_dram_req_rw [i]), .I_dram_req_byteen (per_core_I_dram_req_byteen [i]), .I_dram_req_addr (per_core_I_dram_req_addr [i]), .I_dram_req_data (per_core_I_dram_req_data [i]), .I_dram_req_tag (per_core_I_dram_req_tag [i]), .I_dram_req_ready (per_core_I_dram_req_ready [i]), .I_dram_rsp_valid (per_core_I_dram_rsp_valid [i]), .I_dram_rsp_tag (per_core_I_dram_rsp_tag [i]), .I_dram_rsp_data (per_core_I_dram_rsp_data [i]), .I_dram_rsp_ready (per_core_I_dram_rsp_ready [i]), .snp_req_valid (per_core_snp_req_valid [i]), .snp_req_addr (per_core_snp_req_addr [i]), .snp_req_invalidate (per_core_snp_req_invalidate[i]), .snp_req_tag (per_core_snp_req_tag [i]), .snp_req_ready (per_core_snp_req_ready [i]), .snp_rsp_valid (per_core_snp_rsp_valid [i]), .snp_rsp_tag (per_core_snp_rsp_tag [i]), .snp_rsp_ready (per_core_snp_rsp_ready [i]), .io_req_valid (per_core_io_req_valid [i]), .io_req_rw (per_core_io_req_rw [i]), .io_req_byteen (per_core_io_req_byteen [i]), .io_req_addr (per_core_io_req_addr [i]), .io_req_data (per_core_io_req_data [i]), .io_req_tag (per_core_io_req_tag [i]), .io_req_ready (per_core_io_req_ready [i]), .io_rsp_valid (per_core_io_rsp_valid [i]), .io_rsp_data (per_core_io_rsp_data [i]), .io_rsp_tag (per_core_io_rsp_tag [i]), .io_rsp_ready (per_core_io_rsp_ready [i]), .csr_io_req_valid (per_core_csr_io_req_valid [i]), .csr_io_req_rw (per_core_csr_io_req_rw [i]), .csr_io_req_addr (per_core_csr_io_req_addr [i]), .csr_io_req_data (per_core_csr_io_req_data [i]), .csr_io_req_ready (per_core_csr_io_req_ready [i]), .csr_io_rsp_valid (per_core_csr_io_rsp_valid [i]), .csr_io_rsp_data (per_core_csr_io_rsp_data [i]), .csr_io_rsp_ready (per_core_csr_io_rsp_ready [i]), .busy (per_core_busy [i]), .ebreak (per_core_ebreak [i]) ); end VX_mem_arb #( .NUM_REQUESTS (`NUM_CORES), .WORD_SIZE (4), .TAG_IN_WIDTH (`DCORE_TAG_WIDTH), .TAG_OUT_WIDTH (`L2CORE_TAG_WIDTH) ) io_arb ( .clk (clk), .reset (reset), // input requests .in_mem_req_valid (per_core_io_req_valid), .in_mem_req_rw (per_core_io_req_rw), .in_mem_req_byteen (per_core_io_req_byteen), .in_mem_req_addr (per_core_io_req_addr), .in_mem_req_data (per_core_io_req_data), .in_mem_req_tag (per_core_io_req_tag), .in_mem_req_ready (per_core_io_req_ready), // input responses .in_mem_rsp_valid (per_core_io_rsp_valid), .in_mem_rsp_data (per_core_io_rsp_data), .in_mem_rsp_tag (per_core_io_rsp_tag), .in_mem_rsp_ready (per_core_io_rsp_ready), // output request .out_mem_req_valid (io_req_valid), .out_mem_req_rw (io_req_rw), .out_mem_req_byteen (io_req_byteen), .out_mem_req_addr (io_req_addr), .out_mem_req_data (io_req_data), .out_mem_req_tag (io_req_tag), .out_mem_req_ready (io_req_ready), // output response .out_mem_rsp_valid (io_rsp_valid), .out_mem_rsp_tag (io_rsp_tag), .out_mem_rsp_data (io_rsp_data), .out_mem_rsp_ready (io_rsp_ready) ); VX_csr_io_arb #( .NUM_REQUESTS (`NUM_CORES) ) csr_io_arb ( .clk (clk), .reset (reset), .request_id (csr_io_req_coreid), // input requests .in_csr_io_req_valid (csr_io_req_valid), .in_csr_io_req_addr (csr_io_req_addr), .in_csr_io_req_rw (csr_io_req_rw), .in_csr_io_req_data (csr_io_req_data), .in_csr_io_req_ready (csr_io_req_ready), // input responses .in_csr_io_rsp_valid (per_core_csr_io_rsp_valid), .in_csr_io_rsp_data (per_core_csr_io_rsp_data), .in_csr_io_rsp_ready (per_core_csr_io_rsp_ready), // output request .out_csr_io_req_valid (per_core_csr_io_req_valid), .out_csr_io_req_addr (per_core_csr_io_req_addr), .out_csr_io_req_rw (per_core_csr_io_req_rw), .out_csr_io_req_data (per_core_csr_io_req_data), .out_csr_io_req_ready (per_core_csr_io_req_ready), // output response .out_csr_io_rsp_valid (csr_io_rsp_valid), .out_csr_io_rsp_data (csr_io_rsp_data), .out_csr_io_rsp_ready (csr_io_rsp_ready) ); assign busy = (| per_core_busy); assign ebreak = (& per_core_ebreak); if (`L2_ENABLE) begin // L2 Cache /////////////////////////////////////////////////////////// wire[`L2NUM_REQUESTS-1:0] l2_core_req_valid; wire[`L2NUM_REQUESTS-1:0] l2_core_req_rw; wire[`L2NUM_REQUESTS-1:0][`DDRAM_BYTEEN_WIDTH-1:0] l2_core_req_byteen; wire[`L2NUM_REQUESTS-1:0][`DDRAM_ADDR_WIDTH-1:0] l2_core_req_addr; wire[`L2NUM_REQUESTS-1:0][`DDRAM_TAG_WIDTH-1:0] l2_core_req_tag; wire[`L2NUM_REQUESTS-1:0][`DDRAM_LINE_WIDTH-1:0] l2_core_req_data; wire l2_core_req_ready; wire[`L2NUM_REQUESTS-1:0] l2_core_rsp_valid; wire[`L2NUM_REQUESTS-1:0][`DDRAM_LINE_WIDTH-1:0] l2_core_rsp_data; wire[`L2NUM_REQUESTS-1:0][`DDRAM_TAG_WIDTH-1:0] l2_core_rsp_tag; wire l2_core_rsp_ready; wire[`NUM_CORES-1:0] l2_snp_fwdout_valid; wire[`NUM_CORES-1:0][`DDRAM_ADDR_WIDTH-1:0] l2_snp_fwdout_addr; wire[`NUM_CORES-1:0] l2_snp_fwdout_invalidate; wire[`NUM_CORES-1:0][`DSNP_TAG_WIDTH-1:0] l2_snp_fwdout_tag; wire[`NUM_CORES-1:0] l2_snp_fwdout_ready; wire[`NUM_CORES-1:0] l2_snp_fwdin_valid; wire[`NUM_CORES-1:0][`DSNP_TAG_WIDTH-1:0] l2_snp_fwdin_tag; wire[`NUM_CORES-1:0] l2_snp_fwdin_ready; for (genvar i = 0; i < `L2NUM_REQUESTS; i = i + 2) begin assign l2_core_req_valid [i] = per_core_D_dram_req_valid[(i/2)]; assign l2_core_req_valid [i+1] = per_core_I_dram_req_valid[(i/2)]; assign l2_core_req_rw [i] = per_core_D_dram_req_rw[(i/2)]; assign l2_core_req_rw [i+1] = per_core_I_dram_req_rw[(i/2)]; assign l2_core_req_byteen [i] = per_core_D_dram_req_byteen[(i/2)]; assign l2_core_req_byteen [i+1] = per_core_I_dram_req_byteen[(i/2)]; assign l2_core_req_addr [i] = per_core_D_dram_req_addr[(i/2)]; assign l2_core_req_addr [i+1] = per_core_I_dram_req_addr[(i/2)]; assign l2_core_req_data [i] = per_core_D_dram_req_data[(i/2)]; assign l2_core_req_data [i+1] = per_core_I_dram_req_data[(i/2)]; assign l2_core_req_tag [i] = per_core_D_dram_req_tag[(i/2)]; assign l2_core_req_tag [i+1] = per_core_I_dram_req_tag[(i/2)]; assign per_core_D_dram_req_ready [(i/2)] = l2_core_req_ready; assign per_core_I_dram_req_ready [(i/2)] = l2_core_req_ready; assign per_core_D_dram_rsp_valid [(i/2)] = l2_core_rsp_valid[i] && l2_core_rsp_ready; assign per_core_I_dram_rsp_valid [(i/2)] = l2_core_rsp_valid[i+1] && l2_core_rsp_ready; assign per_core_D_dram_rsp_data [(i/2)] = l2_core_rsp_data[i]; assign per_core_I_dram_rsp_data [(i/2)] = l2_core_rsp_data[i+1]; assign per_core_D_dram_rsp_tag [(i/2)] = l2_core_rsp_tag[i]; assign per_core_I_dram_rsp_tag [(i/2)] = l2_core_rsp_tag[i+1]; assign per_core_snp_req_valid [(i/2)] = l2_snp_fwdout_valid [(i/2)]; assign per_core_snp_req_addr [(i/2)] = l2_snp_fwdout_addr [(i/2)]; assign per_core_snp_req_invalidate [(i/2)] = l2_snp_fwdout_invalidate [(i/2)]; assign per_core_snp_req_tag [(i/2)] = l2_snp_fwdout_tag [(i/2)]; assign l2_snp_fwdout_ready [(i/2)] = per_core_snp_req_ready[(i/2)]; assign l2_snp_fwdin_valid [(i/2)] = per_core_snp_rsp_valid [(i/2)]; assign l2_snp_fwdin_tag [(i/2)] = per_core_snp_rsp_tag [(i/2)]; assign per_core_snp_rsp_ready [(i/2)] = l2_snp_fwdin_ready [(i/2)]; end assign l2_core_rsp_ready = (& per_core_D_dram_rsp_ready) && (& per_core_I_dram_rsp_ready); VX_cache #( .CACHE_ID (`L2CACHE_ID), .CACHE_SIZE (`L2CACHE_SIZE), .BANK_LINE_SIZE (`L2BANK_LINE_SIZE), .NUM_BANKS (`L2NUM_BANKS), .WORD_SIZE (`L2WORD_SIZE), .NUM_REQUESTS (`L2NUM_REQUESTS), .CREQ_SIZE (`L2CREQ_SIZE), .MRVQ_SIZE (`L2MRVQ_SIZE), .DFPQ_SIZE (`L2DFPQ_SIZE), .SNRQ_SIZE (`L2SNRQ_SIZE), .CWBQ_SIZE (`L2CWBQ_SIZE), .DWBQ_SIZE (`L2DWBQ_SIZE), .DFQQ_SIZE (`L2DFQQ_SIZE), .PRFQ_SIZE (`L2PRFQ_SIZE), .PRFQ_STRIDE (`L2PRFQ_STRIDE), .DRAM_ENABLE (1), .WRITE_ENABLE (1), .SNOOP_FORWARDING (1), .CORE_TAG_WIDTH (`DDRAM_TAG_WIDTH), .CORE_TAG_ID_BITS (0), .DRAM_TAG_WIDTH (`L2DRAM_TAG_WIDTH), .NUM_SNP_REQUESTS (`NUM_CORES), .SNP_REQ_TAG_WIDTH (`L2SNP_TAG_WIDTH), .SNP_FWD_TAG_WIDTH (`DSNP_TAG_WIDTH) ) l2cache ( `SCOPE_SIGNALS_CACHE_UNBIND .clk (clk), .reset (reset), // Core request .core_req_valid (l2_core_req_valid), .core_req_rw (l2_core_req_rw), .core_req_byteen (l2_core_req_byteen), .core_req_addr (l2_core_req_addr), .core_req_data (l2_core_req_data), .core_req_tag (l2_core_req_tag), .core_req_ready (l2_core_req_ready), // Core response .core_rsp_valid (l2_core_rsp_valid), .core_rsp_data (l2_core_rsp_data), .core_rsp_tag (l2_core_rsp_tag), .core_rsp_ready (l2_core_rsp_ready), // DRAM request .dram_req_valid (dram_req_valid), .dram_req_rw (dram_req_rw), .dram_req_byteen (dram_req_byteen), .dram_req_addr (dram_req_addr), .dram_req_data (dram_req_data), .dram_req_tag (dram_req_tag), .dram_req_ready (dram_req_ready), // DRAM response .dram_rsp_valid (dram_rsp_valid), .dram_rsp_tag (dram_rsp_tag), .dram_rsp_data (dram_rsp_data), .dram_rsp_ready (dram_rsp_ready), // Snoop request .snp_req_valid (snp_req_valid), .snp_req_addr (snp_req_addr), .snp_req_invalidate (snp_req_invalidate), .snp_req_tag (snp_req_tag), .snp_req_ready (snp_req_ready), // Snoop response .snp_rsp_valid (snp_rsp_valid), .snp_rsp_tag (snp_rsp_tag), .snp_rsp_ready (snp_rsp_ready), // Snoop forwarding out .snp_fwdout_valid (l2_snp_fwdout_valid), .snp_fwdout_addr (l2_snp_fwdout_addr), .snp_fwdout_invalidate(l2_snp_fwdout_invalidate), .snp_fwdout_tag (l2_snp_fwdout_tag), .snp_fwdout_ready (l2_snp_fwdout_ready), // Snoop forwarding in .snp_fwdin_valid (l2_snp_fwdin_valid), .snp_fwdin_tag (l2_snp_fwdin_tag), .snp_fwdin_ready (l2_snp_fwdin_ready) ); end else begin wire[`L2NUM_REQUESTS-1:0] arb_dram_req_valid; wire[`L2NUM_REQUESTS-1:0] arb_dram_req_rw; wire[`L2NUM_REQUESTS-1:0][`DDRAM_BYTEEN_WIDTH-1:0] arb_dram_req_byteen; wire[`L2NUM_REQUESTS-1:0][`DDRAM_ADDR_WIDTH-1:0] arb_dram_req_addr; wire[`L2NUM_REQUESTS-1:0][`DDRAM_TAG_WIDTH-1:0] arb_dram_req_tag; wire[`L2NUM_REQUESTS-1:0][`DDRAM_LINE_WIDTH-1:0] arb_dram_req_data; wire[`L2NUM_REQUESTS-1:0] arb_dram_req_ready; wire[`L2NUM_REQUESTS-1:0] arb_dram_rsp_valid; wire[`L2NUM_REQUESTS-1:0][`DDRAM_LINE_WIDTH-1:0] arb_dram_rsp_data; wire[`L2NUM_REQUESTS-1:0][`DDRAM_TAG_WIDTH-1:0] arb_dram_rsp_tag; wire[`L2NUM_REQUESTS-1:0] arb_dram_rsp_ready; wire[`NUM_CORES-1:0] arb_snp_fwdout_valid; wire[`NUM_CORES-1:0][`DDRAM_ADDR_WIDTH-1:0] arb_snp_fwdout_addr; wire[`NUM_CORES-1:0] arb_snp_fwdout_invalidate; wire[`NUM_CORES-1:0][`DSNP_TAG_WIDTH-1:0] arb_snp_fwdout_tag; wire[`NUM_CORES-1:0] arb_snp_fwdout_ready; wire[`NUM_CORES-1:0] arb_snp_fwdin_valid; wire[`NUM_CORES-1:0][`DSNP_TAG_WIDTH-1:0] arb_snp_fwdin_tag; wire[`NUM_CORES-1:0] arb_snp_fwdin_ready; for (genvar i = 0; i < `L2NUM_REQUESTS; i = i + 2) begin assign arb_dram_req_valid [i] = per_core_D_dram_req_valid[(i/2)]; assign arb_dram_req_valid [i+1] = per_core_I_dram_req_valid[(i/2)]; assign arb_dram_req_rw [i] = per_core_D_dram_req_rw[(i/2)]; assign arb_dram_req_rw [i+1] = per_core_I_dram_req_rw[(i/2)]; assign arb_dram_req_byteen[i] = per_core_D_dram_req_byteen[(i/2)]; assign arb_dram_req_byteen[i+1] = per_core_I_dram_req_byteen[(i/2)]; assign arb_dram_req_addr [i] = per_core_D_dram_req_addr[(i/2)]; assign arb_dram_req_addr [i+1] = per_core_I_dram_req_addr[(i/2)]; assign arb_dram_req_data [i] = per_core_D_dram_req_data[(i/2)]; assign arb_dram_req_data [i+1] = per_core_I_dram_req_data[(i/2)]; assign arb_dram_req_tag [i] = per_core_D_dram_req_tag[(i/2)]; assign arb_dram_req_tag [i+1] = per_core_I_dram_req_tag[(i/2)]; assign per_core_D_dram_req_ready [(i/2)] = arb_dram_req_ready[i]; assign per_core_I_dram_req_ready [(i/2)] = arb_dram_req_ready[i+1]; assign per_core_D_dram_rsp_valid [(i/2)] = arb_dram_rsp_valid[i]; assign per_core_I_dram_rsp_valid [(i/2)] = arb_dram_rsp_valid[i+1]; assign per_core_D_dram_rsp_data [(i/2)] = arb_dram_rsp_data[i]; assign per_core_I_dram_rsp_data [(i/2)] = arb_dram_rsp_data[i+1]; assign per_core_D_dram_rsp_tag [(i/2)] = arb_dram_rsp_tag[i]; assign per_core_I_dram_rsp_tag [(i/2)] = arb_dram_rsp_tag[i+1]; assign arb_dram_rsp_ready [i] = per_core_D_dram_rsp_ready[(i/2)]; assign arb_dram_rsp_ready [i+1] = per_core_I_dram_rsp_ready[(i/2)]; assign per_core_snp_req_valid [(i/2)] = arb_snp_fwdout_valid [(i/2)]; assign per_core_snp_req_addr [(i/2)] = arb_snp_fwdout_addr [(i/2)]; assign per_core_snp_req_invalidate [(i/2)] = arb_snp_fwdout_invalidate [(i/2)]; assign per_core_snp_req_tag [(i/2)] = arb_snp_fwdout_tag [(i/2)]; assign arb_snp_fwdout_ready [(i/2)] = per_core_snp_req_ready[(i/2)]; assign arb_snp_fwdin_valid [(i/2)] = per_core_snp_rsp_valid [(i/2)]; assign arb_snp_fwdin_tag [(i/2)] = per_core_snp_rsp_tag [(i/2)]; assign per_core_snp_rsp_ready [(i/2)] = arb_snp_fwdin_ready [(i/2)]; end if (`NUM_CORES > 1) begin VX_snp_forwarder #( .CACHE_ID (`L2CACHE_ID), .BANK_LINE_SIZE (`L2BANK_LINE_SIZE), .NUM_REQUESTS (`NUM_CORES), .SNRQ_SIZE (`L2SNRQ_SIZE), .SNP_REQ_TAG_WIDTH (`L2SNP_TAG_WIDTH) ) snp_forwarder ( .clk (clk), .reset (reset), .snp_req_valid (snp_req_valid), .snp_req_addr (snp_req_addr), .snp_req_invalidate (snp_req_invalidate), .snp_req_tag (snp_req_tag), .snp_req_ready (snp_req_ready), .snp_rsp_valid (snp_rsp_valid), `UNUSED_PIN (snp_rsp_addr), `UNUSED_PIN (snp_rsp_invalidate), .snp_rsp_tag (snp_rsp_tag), .snp_rsp_ready (snp_rsp_ready), .snp_fwdout_valid (arb_snp_fwdout_valid), .snp_fwdout_addr (arb_snp_fwdout_addr), .snp_fwdout_invalidate(arb_snp_fwdout_invalidate), .snp_fwdout_tag (arb_snp_fwdout_tag), .snp_fwdout_ready (arb_snp_fwdout_ready), .snp_fwdin_valid (arb_snp_fwdin_valid), .snp_fwdin_tag (arb_snp_fwdin_tag), .snp_fwdin_ready (arb_snp_fwdin_ready) ); end else begin assign arb_snp_fwdout_valid = snp_req_valid; assign arb_snp_fwdout_addr = snp_req_addr; assign arb_snp_fwdout_invalidate = snp_req_invalidate; assign arb_snp_fwdout_tag = snp_req_tag; assign snp_req_ready = arb_snp_fwdout_ready; assign snp_rsp_valid = arb_snp_fwdin_valid; assign snp_rsp_tag = arb_snp_fwdin_tag; assign arb_snp_fwdin_ready = snp_rsp_ready; end VX_mem_arb #( .NUM_REQUESTS (`L2NUM_REQUESTS), .WORD_SIZE (`L2BANK_LINE_SIZE), .TAG_IN_WIDTH (`DDRAM_TAG_WIDTH), .TAG_OUT_WIDTH (`L2DRAM_TAG_WIDTH) ) dram_arb ( .clk (clk), .reset (reset), // Core request .in_mem_req_valid (arb_dram_req_valid), .in_mem_req_rw (arb_dram_req_rw), .in_mem_req_byteen (arb_dram_req_byteen), .in_mem_req_addr (arb_dram_req_addr), .in_mem_req_data (arb_dram_req_data), .in_mem_req_tag (arb_dram_req_tag), .in_mem_req_ready (arb_dram_req_ready), // Core response .in_mem_rsp_valid (arb_dram_rsp_valid), .in_mem_rsp_data (arb_dram_rsp_data), .in_mem_rsp_tag (arb_dram_rsp_tag), .in_mem_rsp_ready (arb_dram_rsp_ready), // DRAM request .out_mem_req_valid (dram_req_valid), .out_mem_req_rw (dram_req_rw), .out_mem_req_byteen (dram_req_byteen), .out_mem_req_addr (dram_req_addr), .out_mem_req_data (dram_req_data), .out_mem_req_tag (dram_req_tag), .out_mem_req_ready (dram_req_ready), // DRAM response .out_mem_rsp_valid (dram_rsp_valid), .out_mem_rsp_tag (dram_rsp_tag), .out_mem_rsp_data (dram_rsp_data), .out_mem_rsp_ready (dram_rsp_ready) ); end endmodule