quasar/design/mem.sv

174 lines
5.8 KiB
Systemverilog

module mem #(
parameter ICACHE_BEAT_BITS,
parameter ICCM_BITS,
parameter ICACHE_NUM_WAYS,
parameter DCCM_BYTE_WIDTH,
parameter ICCM_BANK_INDEX_LO,
parameter ICACHE_BANK_BITS,
parameter DCCM_BITS,
parameter ICACHE_BEAT_ADDR_HI,
parameter ICCM_INDEX_BITS,
parameter ICCM_BANK_HI,
parameter ICACHE_BANKS_WAY,
parameter ICACHE_INDEX_HI,
parameter DCCM_NUM_BANKS,
parameter ICACHE_BANK_HI,
parameter ICACHE_BANK_LO,
parameter DCCM_ENABLE= 'b1,
parameter ICACHE_TAG_LO,
parameter ICACHE_DATA_INDEX_LO,
parameter ICCM_NUM_BANKS,
parameter ICACHE_ECC,
parameter ICACHE_ENABLE= 'b1,
parameter DCCM_BANK_BITS,
parameter ICCM_ENABLE= 'b1,
parameter ICCM_BANK_BITS,
parameter ICACHE_TAG_DEPTH,
parameter ICACHE_WAYPACK,
parameter DCCM_SIZE,
parameter DCCM_FDATA_WIDTH,
parameter ICACHE_TAG_INDEX_LO,
parameter ICACHE_DATA_DEPTH)
(
input logic clk,
input logic rst_l,
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 [DCCM_BITS-1:0] dccm_wr_addr_lo,
input logic [DCCM_BITS-1:0] dccm_wr_addr_hi,
input logic [DCCM_BITS-1:0] dccm_rd_addr_lo,
input logic [DCCM_BITS-1:0] dccm_rd_addr_hi,
input logic [DCCM_FDATA_WIDTH-1:0] dccm_wr_data_lo,
input logic [DCCM_FDATA_WIDTH-1:0] dccm_wr_data_hi,
output logic [DCCM_FDATA_WIDTH-1:0] dccm_rd_data_lo,
output logic [DCCM_FDATA_WIDTH-1:0] dccm_rd_data_hi,
//`ifdef DCCM_ENABLE
//`endif
//ICCM ports
input logic [ICCM_BITS-1:1] iccm_rw_addr,
input logic iccm_buf_correct_ecc, // ICCM is doing a single bit error correct cycle
input logic iccm_correction_state, // ICCM is doing a single bit error correct cycle
input logic iccm_wren,
input logic iccm_rden,
input logic [2:0] iccm_wr_size,
input logic [77:0] iccm_wr_data,
output logic [63:0] iccm_rd_data,
output logic [77:0] iccm_rd_data_ecc,
// Icache and Itag Ports
input logic [31:1] ic_rw_addr,
input logic [ICACHE_NUM_WAYS-1:0] ic_tag_valid,
input logic [ICACHE_NUM_WAYS-1:0] ic_wr_en,
input logic ic_rd_en,
input logic [63:0] ic_premux_data, // Premux data to be muxed with each way of the Icache.
input logic ic_sel_premux_data, // Premux data sel
input logic [70:0] ic_wr_data_0, // Data to fill to the Icache. With ECC
input logic [70:0] ic_wr_data_1,
input logic [70:0] ic_debug_wr_data, // Debug wr cache.
output logic [70:0] ic_debug_rd_data , // Data read from Icache. 2x64bits + parity bits. F2 stage. With ECC
input logic [ICACHE_INDEX_HI:3] 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 [ICACHE_NUM_WAYS-1:0] ic_debug_way, // Debug way. Rd or Wr.
output logic [63:0] ic_rd_data , // Data read from Icache. 2x64bits + parity bits. F2 stage. With ECC
output logic [25:0] ic_tag_debug_rd_data,// Debug icache tag.
output logic [ICACHE_BANKS_WAY-1:0] ic_eccerr, // ecc error per bank
output logic [ICACHE_BANKS_WAY-1:0] ic_parerr, // parity error per bank
output logic [ICACHE_NUM_WAYS-1:0] ic_rd_hit,
output logic ic_tag_perr, // Icache Tag parity error
input logic scan_mode
);
logic [ICACHE_BANKS_WAY-1:0][70:0] ic_wr_data;
assign ic_wr_data [0] = ic_wr_data_0;
assign ic_wr_data [1] = ic_wr_data_1;
// DCCM Instantiation
if (DCCM_ENABLE == 1) begin: Gen_dccm_enable
lsu_dccm_mem #(
.DCCM_BYTE_WIDTH(DCCM_BYTE_WIDTH),
.DCCM_BITS(DCCM_BITS),
.DCCM_NUM_BANKS(DCCM_NUM_BANKS),
.DCCM_BANK_BITS(DCCM_BANK_BITS),
.DCCM_SIZE(DCCM_SIZE),
.DCCM_FDATA_WIDTH(DCCM_FDATA_WIDTH)) 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
if ( ICACHE_ENABLE ) begin: icache
ifu_ic_mem #(
.ICACHE_BEAT_BITS(ICACHE_BEAT_BITS),
.ICACHE_NUM_WAYS(ICACHE_NUM_WAYS),
.ICACHE_BANK_BITS(ICACHE_BANK_BITS),
.ICACHE_BEAT_ADDR_HI(ICACHE_BEAT_ADDR_HI),
.ICACHE_BANKS_WAY(ICACHE_BANKS_WAY),
.ICACHE_INDEX_HI(ICACHE_INDEX_HI),
.ICACHE_BANK_HI(ICACHE_BANK_HI),
.ICACHE_BANK_LO(ICACHE_BANK_LO),
.ICACHE_TAG_LO(ICACHE_TAG_LO),
.ICACHE_DATA_INDEX_LO(ICACHE_DATA_INDEX_LO),
.ICACHE_ECC(ICACHE_ECC),
.ICACHE_TAG_DEPTH(ICACHE_TAG_DEPTH),
.ICACHE_WAYPACK(ICACHE_WAYPACK),
.ICACHE_TAG_INDEX_LO(ICACHE_TAG_INDEX_LO),
.ICACHE_DATA_DEPTH(ICACHE_DATA_DEPTH)) icm (
.clk_override(icm_clk_override),
.*
);
end
else begin
assign ic_rd_hit[ICACHE_NUM_WAYS-1:0] = '0;
assign ic_tag_perr = '0 ;
assign ic_rd_data = '0 ;
assign ic_tag_debug_rd_data = '0 ;
end // else: !if( ICACHE_ENABLE )
if (ICCM_ENABLE) begin : iccm
ifu_iccm_mem #(
.ICCM_BITS(ICCM_BITS),
.ICCM_BANK_INDEX_LO(ICCM_BANK_INDEX_LO),
.ICCM_INDEX_BITS(ICCM_INDEX_BITS),
.ICCM_BANK_HI(ICCM_BANK_HI),
.ICCM_NUM_BANKS(ICCM_NUM_BANKS),
.ICCM_BANK_BITS(ICCM_BANK_BITS)) iccm (.*,
.clk_override(icm_clk_override),
.iccm_rw_addr(iccm_rw_addr[ICCM_BITS-1:1]),
.iccm_rd_data(iccm_rd_data[63:0])
);
end
else begin
assign iccm_rd_data = '0 ;
assign iccm_rd_data_ecc = '0 ;
end
endmodule