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Merge pull request #612 from harshinisrinath1001/main

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Wrote exclusions for ifu and lsu peripherals which were always supported
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David Harris 2024-02-01 20:09:03 -08:00 committed by GitHub
commit ef96458570
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3 changed files with 24 additions and 15 deletions
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22
sim/coverage-exclusions-rv64gc.do
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@ -136,7 +136,13 @@ coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/iromdec
coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/ddr4dec coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/ddr4dec
coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/sdcdec coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/sdcdec
# PMA Regions 8, 9, and 10 (dtim, irom, ddr4) are never used in the rv64gc configuration, so exclude coverage # PMA Regions 1, 2, and 3 (dtim, irom, ddr4) are never used in the rv64gc configuration, so exclude coverage
set line [GetLineNum ../src/mmu/pmachecker.sv "exclusion-tag: unused-atomic"]
coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2,4
coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2,4
set line [GetLineNum ../src/mmu/pmachecker.sv "exclusion-tag: unused-tim"]
coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2,4
coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2,4
set line [GetLineNum ../src/mmu/pmachecker.sv "exclusion-tag: unused-cachable"] set line [GetLineNum ../src/mmu/pmachecker.sv "exclusion-tag: unused-cachable"]
coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2 coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2
coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2 coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2
@ -145,11 +151,17 @@ coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker -linerange $line-$lin
coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2,4,6,8 coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker -linerange $line-$line -item e 1 -fecexprrow 2,4,6,8
# Excluding so far un-used instruction sources for the ifu # Excluding so far un-used instruction sources for the ifu
# coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/bootromdec coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/bootromdec
# coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/uncoreramdec coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/uncoreramdec
coverage exclude -scope /dut/core/ifu/immu/immu/pmachecker/adrdecs/spidec
#Excluding the bootrom, uncoreran, and clint as sources for the lsu # The following peripherals are always supported
# coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker/adrdecs/bootromdec set line [GetLineNum ../src/mmu/adrdec.sv "exclusion-tag: adrdecSel"]
coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker/adrdecs/bootromdec -linerange $line-$line -item e 1 -fecexprrow 3,7
coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker/adrdecs/gpiodec -linerange $line-$line -item e 1 -fecexprrow 3
coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker/adrdecs/uartdec -linerange $line-$line -item e 1 -fecexprrow 3
coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker/adrdecs/plicdec -linerange $line-$line -item e 1 -fecexprrow 3
coverage exclude -scope /dut/core/lsu/dmmu/dmmu/pmachecker/adrdecs/spidec -linerange $line-$line -item e 1 -fecexprrow 3
#Excluding signals in lsu: clintdec and uncoreram accept all sizes so 'SizeValid' will never be 0 #Excluding signals in lsu: clintdec and uncoreram accept all sizes so 'SizeValid' will never be 0
set line [GetLineNum ../src/mmu/adrdec.sv "& SizeValid"] set line [GetLineNum ../src/mmu/adrdec.sv "& SizeValid"]

15
src/fpu/unpackinput.sv
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@ -140,15 +140,12 @@ module unpackinput import cvw::*; #(parameter cvw_t P) (
endcase endcase
always_comb always_comb
if (BadNaNBox) begin if (BadNaNBox & Fmt == P.FMT1)
case (Fmt) PostBox = {{(P.FLEN-P.LEN1){1'b1}}, 1'b1, {(P.NE1+1){1'b1}}, {(P.LEN1-P.NE1-2){1'b0}}};
P.FMT: PostBox = In; else if (BadNaNBox & Fmt == P.FMT2)
P.FMT1: PostBox = {{(P.FLEN-P.LEN1){1'b1}}, 1'b1, {(P.NE1+1){1'b1}}, {(P.LEN1-P.NE1-2){1'b0}}}; PostBox = {{(P.FLEN-P.LEN2){1'b1}}, 1'b1, {(P.NE2+1){1'b1}}, {(P.LEN2-P.NE2-2){1'b0}}};
P.FMT2: PostBox = {{(P.FLEN-P.LEN2){1'b1}}, 1'b1, {(P.NE2+1){1'b1}}, {(P.LEN2-P.NE2-2){1'b0}}}; else
default: PostBox = 'x; PostBox = In;
endcase
end else
PostBox = In;
// extract the sign bit // extract the sign bit
always_comb always_comb

2
src/mmu/adrdec.sv
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@ -49,5 +49,5 @@ module adrdec #(parameter PA_BITS) (
assign SizeValid = SizeMask[Size]; assign SizeValid = SizeMask[Size];
// Select this peripheral if the address matches, the peripheral is supported, and the type and size of access is ok // Select this peripheral if the address matches, the peripheral is supported, and the type and size of access is ok
assign Sel = Match & Supported & AccessValid & SizeValid; assign Sel = Match & Supported & AccessValid & SizeValid; // exclusion-tag: adrdecSel
endmodule endmodule