Line data    Source code

       1              : // SPDX-License-Identifier: Apache-2.0
       2              : // Copyright 2020 Western Digital Corporation or its affiliates.
       3              : //
       4              : // Licensed under the Apache License, Version 2.0 (the "License");
       5              : // you may not use this file except in compliance with the License.
       6              : // You may obtain a copy of the License at
       7              : //
       8              : // http://www.apache.org/licenses/LICENSE-2.0
       9              : //
      10              : // Unless required by applicable law or agreed to in writing, software
      11              : // distributed under the License is distributed on an "AS IS" BASIS,
      12              : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      13              : // See the License for the specific language governing permissions and
      14              : // limitations under the License.
      15              : 
      16              : //********************************************************************************
      17              : // $Id$
      18              : //
      19              : //
      20              : // Owner:
      21              : // Function: DEC Trigger Logic
      22              : // Comments:
      23              : //
      24              : //********************************************************************************
      25              : module el2_dec_trigger
      26              : import el2_pkg::*;
      27              : #(
      28              : `include "el2_param.vh"
      29              :  )(
      30              : 
      31            1 :    input el2_trigger_pkt_t [3:0] trigger_pkt_any,           // Packet from tlu. 'select':0-pc,1-Opcode  'Execute' needs to be set for dec triggers to fire. 'match'-1 do mask, 0: full match
      32         3746 :    input logic [31:1]  dec_i0_pc_d,                          // i0 pc
      33              : 
      34         2501 :    output logic [3:0] dec_i0_trigger_match_d                 // Trigger match
      35              : );
      36              : 
      37          401 :    logic [3:0][31:0]  dec_i0_match_data;
      38         2842 :    logic [3:0]        dec_i0_trigger_data_match;
      39              : 
      40              :    for (genvar i=0; i<4; i++) begin : genblock
      41              :       assign dec_i0_match_data[i][31:0] = ({32{~trigger_pkt_any[i].select & trigger_pkt_any[i].execute}} & {dec_i0_pc_d[31:1], trigger_pkt_any[i].tdata2[0]});      // select=0; do a PC match
      42              : 
      43              :       rvmaskandmatch trigger_i0_match (.mask(trigger_pkt_any[i].tdata2[31:0]), .data(dec_i0_match_data[i][31:0]), .masken(trigger_pkt_any[i].match), .match(dec_i0_trigger_data_match[i]));
      44              : 
      45              :       assign dec_i0_trigger_match_d[i] = trigger_pkt_any[i].execute & trigger_pkt_any[i].m & dec_i0_trigger_data_match[i];
      46              :    end
      47              : 
      48              : endmodule // el2_dec_trigger
      49              :