Files
vortex/hw/rtl/cache/VX_snp_rsp_arb.v
2020-08-14 21:50:14 -07:00

41 lines
1.2 KiB
Verilog

`include "VX_cache_config.vh"
module VX_snp_rsp_arb #(
parameter NUM_BANKS = 0,
parameter BANK_LINE_SIZE = 0,
parameter SNP_REQ_TAG_WIDTH = 0
) (
input wire clk,
input wire reset,
input wire [NUM_BANKS-1:0] per_bank_snp_rsp_valid,
input wire [NUM_BANKS-1:0][SNP_REQ_TAG_WIDTH-1:0] per_bank_snp_rsp_tag,
output wire [NUM_BANKS-1:0] per_bank_snp_rsp_ready,
output wire snp_rsp_valid,
output wire [SNP_REQ_TAG_WIDTH-1:0] snp_rsp_tag,
input wire snp_rsp_ready
);
wire [`BANK_BITS-1:0] fsq_bank;
wire fsq_valid;
VX_fixed_arbiter #(
.N(NUM_BANKS)
) sel_ffsq (
.clk (clk),
.reset (reset),
.requests (per_bank_snp_rsp_valid),
.grant_index (fsq_bank),
.grant_valid (fsq_valid),
`UNUSED_PIN (grant_onehot)
);
assign snp_rsp_valid = fsq_valid;
assign snp_rsp_tag = per_bank_snp_rsp_tag[fsq_bank];
for (genvar i = 0; i < NUM_BANKS; i++) begin
assign per_bank_snp_rsp_ready[i] = snp_rsp_ready && (fsq_bank == `BANK_BITS'(i));
end
endmodule