69 lines
2.8 KiB
Systemverilog
69 lines
2.8 KiB
Systemverilog
// SPDX-License-Identifier: Apache-2.0
|
|
// Copyright 2020 Western Digital Corporation or its affiliates.
|
|
//
|
|
// 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.
|
|
|
|
//********************************************************************************
|
|
// $Id$
|
|
//
|
|
//
|
|
// Owner:
|
|
// Function: LSU Trigger logic
|
|
// Comments:
|
|
//
|
|
//********************************************************************************
|
|
module el2_lsu_trigger
|
|
import el2_pkg::*;
|
|
#(
|
|
`include "el2_param.vh"
|
|
)(
|
|
input el2_trigger_pkt_t [3:0] trigger_pkt_any, // trigger packet from dec
|
|
input el2_lsu_pkt_t lsu_pkt_m, // lsu packet
|
|
input logic [31:0] lsu_addr_m, // address
|
|
input logic [31:0] store_data_m, // store data
|
|
|
|
output logic [3:0] lsu_trigger_match_m // match result
|
|
);
|
|
|
|
logic trigger_enable;
|
|
logic [3:0][31:0] lsu_match_data;
|
|
logic [3:0] lsu_trigger_data_match;
|
|
logic [31:0] store_data_trigger_m;
|
|
logic [31:0] ldst_addr_trigger_m;
|
|
|
|
// Generate the trigger enable (This is for power)
|
|
always_comb begin
|
|
trigger_enable = 1'b0;
|
|
for (int i=0; i<4; i++) begin
|
|
trigger_enable |= trigger_pkt_any[i].m;
|
|
end
|
|
end
|
|
|
|
assign store_data_trigger_m[31:0] = {({16{lsu_pkt_m.word}} & store_data_m[31:16]),({8{(lsu_pkt_m.half | lsu_pkt_m.word)}} & store_data_m[15:8]), store_data_m[7:0]} & {32{trigger_enable}};
|
|
assign ldst_addr_trigger_m[31:0] = lsu_addr_m[31:0] & {32{trigger_enable}};
|
|
|
|
|
|
for (genvar i=0; i<4; i++) begin
|
|
assign lsu_match_data[i][31:0] = ({32{~trigger_pkt_any[i].select}} & ldst_addr_trigger_m[31:0]) |
|
|
({32{trigger_pkt_any[i].select & trigger_pkt_any[i].store}} & store_data_trigger_m[31:0]);
|
|
|
|
rvmaskandmatch trigger_match (.mask(trigger_pkt_any[i].tdata2[31:0]), .data(lsu_match_data[i][31:0]), .masken(trigger_pkt_any[i].match), .match(lsu_trigger_data_match[i]));
|
|
|
|
assign lsu_trigger_match_m[i] = lsu_pkt_m.valid & ~lsu_pkt_m.dma & trigger_enable &
|
|
((trigger_pkt_any[i].store & lsu_pkt_m.store) | (trigger_pkt_any[i].load & lsu_pkt_m.load & ~trigger_pkt_any[i].select)) &
|
|
lsu_trigger_data_match[i];
|
|
end
|
|
|
|
|
|
endmodule // el2_lsu_trigger
|