abstractaccelerator/Cores-SweRV/design/lsu/lsu_trigger.sv

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// SPDX-License-Identifier: Apache-2.0
// Copyright 2019 Western Digital Corporation or its affiliates.
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//
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// 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
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// 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.
//********************************************************************************
// $Id$
//
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//
// Owner:
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// Function: LSU Trigger logic
// Comments:
//
//********************************************************************************
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module lsu_trigger
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import swerv_types::*;
(
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input logic clk, // clock
input logic lsu_free_c2_clk, // clock
input logic rst_l, // reset
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input trigger_pkt_t [3:0] trigger_pkt_any, // trigger packet from dec
input lsu_pkt_t lsu_pkt_dc3, // lsu packet
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input logic [31:0] lsu_addr_dc3, // address
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input logic [31:0] lsu_result_dc3, // load data
input logic [31:0] store_data_dc3, // store data
output logic [3:0] lsu_trigger_match_dc3 // match result
);
logic [3:0][31:0] lsu_match_data;
logic [3:0] lsu_trigger_data_match;
logic [31:0] store_data_trigger_dc3;
assign store_data_trigger_dc3[31:0] = { ({16{lsu_pkt_dc3.word}} & store_data_dc3[31:16]) , ({8{(lsu_pkt_dc3.half | lsu_pkt_dc3.word)}} & store_data_dc3[15:8]), store_data_dc3[7:0]};
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for (genvar i=0; i<4; i++) begin
assign lsu_match_data[i][31:0] = ({32{~trigger_pkt_any[i].select}} & lsu_addr_dc3[31:0]) |
({32{trigger_pkt_any[i].select & trigger_pkt_any[i].store}} & store_data_trigger_dc3[31:0]);
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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_dc3[i] = lsu_pkt_dc3.valid & ~lsu_pkt_dc3.dma &
((trigger_pkt_any[i].store & lsu_pkt_dc3.store) | (trigger_pkt_any[i].load & lsu_pkt_dc3.load & ~trigger_pkt_any[i].select)) &
lsu_trigger_data_match[i];
end
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endmodule // lsu_trigger