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Merge pull request #275 from dherreravicioso/main

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Excluded coverage for impossible cases in wficountreg and status.MPRV
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David Harris 2023-04-24 12:18:55 -07:00 committed by GitHub
commit e73922d34d
2 changed files with 8 additions and 1 deletions
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4
sim/coverage-exclusions-rv64gc.do
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@ -128,3 +128,7 @@ set line [GetLineNum ../src/mmu/pmachecker.sv "WriteAccessM \\| ExecuteAccessF"]
coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 1-5
set line [GetLineNum ../src/mmu/pmachecker.sv "ReadAccessM \\| ExecuteAccessF"]
coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 1-3
# Excluding reset and clear for impossible case in the wficountreg in privdec
set line [GetLineNum ../src/generic/flop/floprc.sv "reset \\| clear"]
coverage exclude -scope /dut/core/priv/priv/pmd/wfi/wficountreg -linerange $line-$line -item c 1 -feccondrow 2

3
src/privileged/csrsr.sv
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@ -122,7 +122,10 @@ module csrsr (
logic [1:0] EndiannessPrivMode;
always_comb begin
if (SelHPTW) EndiannessPrivMode = `S_MODE;
//coverage off -item c 1 -feccondrow 1
// status.MPRV always gets reset upon leaving machine mode, so MPRV will never be high when out of machine mode
else if (PrivilegeModeW == `M_MODE & STATUS_MPRV) EndiannessPrivMode = STATUS_MPP;
//coverage on
else EndiannessPrivMode = PrivilegeModeW;
case (EndiannessPrivMode)