mirror of
https://github.com/vortexgpgpu/vortex.git
synced 2025-04-24 13:57:17 -04:00
77 lines
2.1 KiB
Systemverilog
77 lines
2.1 KiB
Systemverilog
// Copyright © 2019-2023
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
`include "VX_platform.vh"
|
|
|
|
`TRACING_OFF
|
|
module VX_skid_buffer #(
|
|
parameter DATAW = 32,
|
|
parameter PASSTHRU = 0,
|
|
parameter HALF_BW = 0,
|
|
parameter OUT_REG = 0
|
|
) (
|
|
input wire clk,
|
|
input wire reset,
|
|
|
|
input wire valid_in,
|
|
output wire ready_in,
|
|
input wire [DATAW-1:0] data_in,
|
|
|
|
output wire [DATAW-1:0] data_out,
|
|
input wire ready_out,
|
|
output wire valid_out
|
|
);
|
|
if (PASSTHRU != 0) begin : g_passthru
|
|
|
|
`UNUSED_VAR (clk)
|
|
`UNUSED_VAR (reset)
|
|
|
|
assign valid_out = valid_in;
|
|
assign data_out = data_in;
|
|
assign ready_in = ready_out;
|
|
|
|
end else if (HALF_BW != 0) begin : g_half_bw
|
|
|
|
VX_toggle_buffer #(
|
|
.DATAW (DATAW)
|
|
) toggle_buffer (
|
|
.clk (clk),
|
|
.reset (reset),
|
|
.valid_in (valid_in),
|
|
.data_in (data_in),
|
|
.ready_in (ready_in),
|
|
.valid_out (valid_out),
|
|
.data_out (data_out),
|
|
.ready_out (ready_out)
|
|
);
|
|
|
|
end else begin : g_full_bw
|
|
|
|
VX_stream_buffer #(
|
|
.DATAW (DATAW),
|
|
.OUT_REG (OUT_REG)
|
|
) stream_buffer (
|
|
.clk (clk),
|
|
.reset (reset),
|
|
.valid_in (valid_in),
|
|
.data_in (data_in),
|
|
.ready_in (ready_in),
|
|
.valid_out (valid_out),
|
|
.data_out (data_out),
|
|
.ready_out (ready_out)
|
|
);
|
|
|
|
end
|
|
|
|
endmodule
|
|
`TRACING_ON
|