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Added better comment for the exclusion in privdec.sv

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Alexa Wright 2023-04-26 16:25:55 -07:00
parent 55a74fd315
commit 79031e3de0
1 changed files with 1 additions and 1 deletions
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src/privileged/privdec.sv
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@ -70,7 +70,7 @@ module privdec (
assign WFICountPlus1 = WFICount + 1; assign WFICountPlus1 = WFICount + 1;
floprc #(`WFI_TIMEOUT_BIT+1) wficountreg(clk, reset, ~wfiM, WFICountPlus1, WFICount); // count while in WFI floprc #(`WFI_TIMEOUT_BIT+1) wficountreg(clk, reset, ~wfiM, WFICountPlus1, WFICount); // count while in WFI
// coverage off -item e 1 -fecexprrow 1 // coverage off -item e 1 -fecexprrow 1
// Excluding test case where we need to test WFI in a condition where it will never trap // WFI Timout trap will not occur when STATUS_TW is low while in supervisor mode, so the system gets stuck waiting for an interrupt and triggers a watchdog timeout.
assign WFITimeoutM = ((STATUS_TW & PrivilegeModeW != `M_MODE) | (`S_SUPPORTED & PrivilegeModeW == `U_MODE)) & WFICount[`WFI_TIMEOUT_BIT]; assign WFITimeoutM = ((STATUS_TW & PrivilegeModeW != `M_MODE) | (`S_SUPPORTED & PrivilegeModeW == `U_MODE)) & WFICount[`WFI_TIMEOUT_BIT];
// coverage on // coverage on
end else assign WFITimeoutM = 0; end else assign WFITimeoutM = 0;