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Adjusted LSU misaligned buffer to fix synthesis warning

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David Harris 2023-11-15 08:19:50 -08:00
parent cfaeeae25a
commit 817ddbc7c5
1 changed files with 5 additions and 4 deletions
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9
src/lsu/lsu.sv
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@ -92,7 +92,8 @@ module lsu import cvw::*; #(parameter cvw_t P) (
input var logic [7:0] PMPCFG_ARRAY_REGW[P.PMP_ENTRIES-1:0], // PMP configuration from privileged unit input var logic [7:0] PMPCFG_ARRAY_REGW[P.PMP_ENTRIES-1:0], // PMP configuration from privileged unit
input var logic [P.PA_BITS-3:0] PMPADDR_ARRAY_REGW[P.PMP_ENTRIES-1:0] // PMP address from privileged unit input var logic [P.PA_BITS-3:0] PMPADDR_ARRAY_REGW[P.PMP_ENTRIES-1:0] // PMP address from privileged unit
); );
localparam MISALIGN_SUPPORT = P.ZICCLSM_SUPPORTED & P.DCACHE_SUPPORTED; localparam logic MISALIGN_SUPPORT = P.ZICCLSM_SUPPORTED & P.DCACHE_SUPPORTED;
localparam MLEN = MISALIGN_SUPPROT ? 2*P.LLEN : P.LLEN; // widen buffer for misaligned accessess
logic [P.XLEN+1:0] IEUAdrExtM; // Memory stage address zero-extended to PA_BITS or XLEN whichever is longer logic [P.XLEN+1:0] IEUAdrExtM; // Memory stage address zero-extended to PA_BITS or XLEN whichever is longer
logic [P.XLEN+1:0] IEUAdrExtE; // Execution stage address zero-extended to PA_BITS or XLEN whichever is longer logic [P.XLEN+1:0] IEUAdrExtE; // Execution stage address zero-extended to PA_BITS or XLEN whichever is longer
@ -118,9 +119,9 @@ module lsu import cvw::*; #(parameter cvw_t P) (
logic [P.LLEN-1:0] DTIMReadDataWordM; // DTIM read data logic [P.LLEN-1:0] DTIMReadDataWordM; // DTIM read data
/* verilator lint_off WIDTHEXPAND */ /* verilator lint_off WIDTHEXPAND */
logic [(MISALIGN_SUPPORT+1)*P.LLEN-1:0] DCacheReadDataWordM; // D$ read data logic [MLEN-1:0] DCacheReadDataWordM; // D$ read data
logic [(MISALIGN_SUPPORT+1)*P.LLEN-1:0] LSUWriteDataSpillM; // Final write data logic [MLEN-1:0] LSUWriteDataSpillM; // Final write data
logic [((MISALIGN_SUPPORT+1)*P.LLEN-1)/8:0] ByteMaskSpillM; // Selects which bytes within a word to write logic [MLEN/8-1:0] ByteMaskSpillM; // Selects which bytes within a word to write
/* verilator lint_on WIDTHEXPAND */ /* verilator lint_on WIDTHEXPAND */
logic [P.LLEN-1:0] DCacheReadDataWordSpillM; // D$ read data logic [P.LLEN-1:0] DCacheReadDataWordSpillM; // D$ read data
logic [P.LLEN-1:0] ReadDataWordMuxM; // DTIM or D$ read data logic [P.LLEN-1:0] ReadDataWordMuxM; // DTIM or D$ read data