abstractaccelerator/design/mem.sv

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4.5 KiB
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//********************************************************************************
// SPDX-License-Identifier: Apache-2.0
// Copyright 2019 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.
//********************************************************************************
module mem
import swerv_types::*;
(
input logic clk,
input logic rst_l,
input logic lsu_freeze_dc3,
input logic dccm_clk_override,
input logic icm_clk_override,
input logic dec_tlu_core_ecc_disable,
//DCCM ports
input logic dccm_wren,
input logic dccm_rden,
input logic [`RV_DCCM_BITS-1:0] dccm_wr_addr,
input logic [`RV_DCCM_BITS-1:0] dccm_rd_addr_lo,
input logic [`RV_DCCM_BITS-1:0] dccm_rd_addr_hi,
input logic [`RV_DCCM_FDATA_WIDTH-1:0] dccm_wr_data,
output logic [`RV_DCCM_FDATA_WIDTH-1:0] dccm_rd_data_lo,
output logic [`RV_DCCM_FDATA_WIDTH-1:0] dccm_rd_data_hi,
`ifdef RV_ICCM_ENABLE
//ICCM ports
input logic [`RV_ICCM_BITS-1:2] iccm_rw_addr,
input logic iccm_wren,
input logic iccm_rden,
input logic [2:0] iccm_wr_size,
input logic [77:0] iccm_wr_data,
output logic [155:0] iccm_rd_data,
`endif
// Icache and Itag Ports
`ifdef RV_ICACHE_ENABLE //temp
input logic [31:3] ic_rw_addr,
input logic [3:0] ic_tag_valid,
input logic [3:0] ic_wr_en,
input logic ic_rd_en,
input logic [127:0] ic_premux_data, // Premux data to be muxed with each way of the Icache.
input logic ic_sel_premux_data, // Premux data sel
`ifdef RV_ICACHE_ECC
input logic [83:0] ic_wr_data, // Data to fill to the Icache. With ECC
input logic [41:0] ic_debug_wr_data, // Debug wr cache.
`else
input logic [67:0] ic_wr_data, // Data to fill to the Icache. With Parity
input logic [33:0] ic_debug_wr_data, // Debug wr cache.
`endif
input logic [15:2] ic_debug_addr, // Read/Write addresss to the Icache.
input logic ic_debug_rd_en, // Icache debug rd
input logic ic_debug_wr_en, // Icache debug wr
input logic ic_debug_tag_array, // Debug tag array
input logic [3:0] ic_debug_way, // Debug way. Rd or Wr.
`endif
`ifdef RV_ICACHE_ECC
output logic [167:0] ic_rd_data , // Data read from Icache. 2x64bits + parity bits. F2 stage. With ECC
output logic [24:0] ictag_debug_rd_data,// Debug icache tag.
`else
output logic [135:0] ic_rd_data , // Data read from Icache. 2x64bits + parity bits. F2 stage. With Parity
output logic [20:0] ictag_debug_rd_data,// Debug icache tag.
`endif
output logic [3:0] ic_rd_hit,
output logic ic_tag_perr, // Icache Tag parity error
input logic scan_mode
);
`include "global.h"
`ifdef RV_DCCM_ENABLE
localparam DCCM_ENABLE = 1'b1;
`else
localparam DCCM_ENABLE = 1'b0;
`endif
// DCCM Instantiation
if (DCCM_ENABLE == 1) begin: Gen_dccm_enable
lsu_dccm_mem dccm (
.clk_override(dccm_clk_override),
.*
);
end else begin: Gen_dccm_disable
assign dccm_rd_data_lo = '0;
assign dccm_rd_data_hi = '0;
end
`ifdef RV_ICACHE_ENABLE
ifu_ic_mem icm (
.clk_override(icm_clk_override),
.*
);
`else
assign ic_rd_hit[3:0] = '0;
assign ic_tag_perr = '0 ;
assign ic_rd_data = '0 ;
assign ictag_debug_rd_data = '0 ;
`endif
`ifdef RV_ICCM_ENABLE
ifu_iccm_mem iccm (.*,
.clk_override(icm_clk_override),
.iccm_rw_addr(iccm_rw_addr[`RV_ICCM_BITS-1:2]),
.iccm_rd_data(iccm_rd_data[155:0])
);
`endif
endmodule