62 lines
2.6 KiB
Systemverilog
62 lines
2.6 KiB
Systemverilog
// SPDX-License-Identifier: Apache-2.0
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// 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");
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// you may not use this file except in compliance with the License.
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// 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
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//********************************************************************************
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// $Id$
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//
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//
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// Owner:
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// Function: LSU Trigger logic
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// Comments:
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//
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//********************************************************************************
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module lsu_trigger
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import swerv_types::*;
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(
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input logic clk, // clock
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input logic lsu_free_c2_clk, // clock
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input logic rst_l, // reset
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input trigger_pkt_t [3:0] trigger_pkt_any, // trigger packet from dec
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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
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input logic [31:0] store_data_dc3, // store data
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output logic [3:0] lsu_trigger_match_dc3 // match result
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);
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logic [3:0][31:0] lsu_match_data;
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logic [3:0] lsu_trigger_data_match;
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logic [31:0] store_data_trigger_dc3;
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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
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assign lsu_match_data[i][31:0] = ({32{~trigger_pkt_any[i].select}} & lsu_addr_dc3[31:0]) |
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({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]));
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assign lsu_trigger_match_dc3[i] = lsu_pkt_dc3.valid & ~lsu_pkt_dc3.dma &
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((trigger_pkt_any[i].store & lsu_pkt_dc3.store) | (trigger_pkt_any[i].load & lsu_pkt_dc3.load & ~trigger_pkt_any[i].select)) &
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lsu_trigger_data_match[i];
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end
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endmodule // lsu_trigger
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