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csr_regfile.sv: use CVA6Cfg.ASID_WIDTH instead of AsidWidth (fix cv64a6) (#1956)

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Yannick Casamatta 2024-03-25 11:49:54 +01:00 • committed by GitHub
parent 9ecdaa1408
commit a6e1fa23aa
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1 changed files with 4 additions and 5 deletions
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core/csr_regfile.sv
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@ -21,7 +21,6 @@ module csr_regfile
parameter type irq_ctrl_t = logic,
parameter type scoreboard_entry_t = logic,
parameter type rvfi_probes_csr_t = logic,
parameter int AsidWidth = 1,
parameter int unsigned MHPMCounterNum = 6
) (
// Subsystem Clock - SUBSYSTEM
@ -100,7 +99,7 @@ module csr_regfile
// TO_BE_COMPLETED - EX_STAGE
output logic [CVA6Cfg.PPNW-1:0] satp_ppn_o,
// TO_BE_COMPLETED - EX_STAGE
output logic [AsidWidth-1:0] asid_o,
output logic [CVA6Cfg.ASID_WIDTH-1:0] asid_o,
// external interrupt in - SUBSYSTEM
input logic [1:0] irq_i,
// inter processor interrupt -> connected to machine mode sw - SUBSYSTEM
@ -828,9 +827,9 @@ module csr_regfile
// intercept SATP writes if in S-Mode and TVM is enabled
if (priv_lvl_o == riscv::PRIV_LVL_S && mstatus_q.tvm) update_access_exception = 1'b1;
else begin
satp = satp_t'(csr_wdata);
satp = satp_t'(csr_wdata);
// only make ASID_LEN - 1 bit stick, that way software can figure out how many ASID bits are supported
satp.asid = satp.asid & {{(CVA6Cfg.ASIDW - AsidWidth) {1'b0}}, {AsidWidth{1'b1}}};
satp.asid = satp.asid & {{(CVA6Cfg.ASIDW - CVA6Cfg.ASID_WIDTH) {1'b0}}, {CVA6Cfg.ASID_WIDTH{1'b1}}};
// only update if we actually support this mode
if (config_pkg::vm_mode_t'(satp.mode) == config_pkg::ModeOff ||
config_pkg::vm_mode_t'(satp.mode) == CVA6Cfg.MODE_SV)
@ -1551,7 +1550,7 @@ module csr_regfile
assign fprec_o = fcsr_q.fprec;
// MMU outputs
assign satp_ppn_o = satp_q.ppn;
assign asid_o = satp_q.asid[AsidWidth-1:0];
assign asid_o = satp_q.asid[CVA6Cfg.ASID_WIDTH-1:0];
assign sum_o = mstatus_q.sum;
// we support bare memory addressing and SV39
assign en_translation_o = ((CVA6Cfg.RVS && config_pkg::vm_mode_t'(satp_q.mode) == CVA6Cfg.MODE_SV) &&