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https://github.com/openhwgroup/cvw
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80 lines
5.3 KiB
Plaintext
80 lines
5.3 KiB
Plaintext
#///////////////////////////////////////////
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#// coverage-exclusions-rv64gc.do
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#//
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#// Written: David_Harris@hmc.edu 19 March 2023
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#//
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#// Purpose: Set of exclusions from coverage for rv64gc configuration
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#// For example, signals hardwired to 0 should not be checked for toggle coverage
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#//
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#// A component of the CORE-V-WALLY configurable RISC-V project.
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#//
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#// Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University
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#//
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#// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
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#//
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#// Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file
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#// except in compliance with the License, or, at your option, the Apache License version 2.0. You
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#// may obtain a copy of the License at
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#//
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#// https://solderpad.org/licenses/SHL-2.1/
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#//
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#// Unless required by applicable law or agreed to in writing, any work distributed under the
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#// License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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#// either express or implied. See the License for the specific language governing permissions
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#// and limitations under the License.
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#////////////////////////////////////////////////////////////////////////////////////////////////
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# This file should be a last resort. It's preferable to put
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# // coverage off
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# statements inline with the code whenever possible.
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# a hack to describe coverage exclusions without hardcoding linenumbers:
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do GetLineNum.do
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# LZA (i<64) statement confuses coverage tool
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# This is ugly to exlcude the whole file - is there a better option? // coverage off isn't working
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coverage exclude -srcfile lzc.sv
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### Exclude D$ states and logic for the I$ instance
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# This is cleaner than trying to set an I$-specific pragma in cachefsm.sv (which would exclude it for the D$ instance too)
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# Also exclude the write line to ready transition for the I$ since we can't get a flush during this operation.
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -fstate CurrState STATE_FLUSH STATE_FLUSH_WRITEBACK STATE_FLUSH_WRITEBACK STATE_WRITEBACK
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -ftrans CurrState STATE_WRITE_LINE->STATE_READY
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# exclude unused transitions from case statement. Unfortunately the whole branch needs to be excluded I think. Expression coverage should still work.
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache state-case"] -item b 1
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# exclude branch/condition coverage: LineDirty if statement
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache FETCHStatement"] -item bc 1
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# exclude the unreachable logic
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set start [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag-start: icache case"]
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set end [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag-end: icache case"]
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange $start-$end
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache WRITEBACKStatement"]
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# exclude Atomic Operation logic
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache storeAMO"] -item e 1 -fecexprrow 6
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache storeAMO1"] -item e 1 -fecexprrow 2-4
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache AnyUpdateHit"] -item e 1 -fecexprrow 2
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# cache write logic
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache CacheW"] -item e 1 -fecexprrow 4
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# output signal logic
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache StallStates"] -item e 1 -fecexprrow 8 12 14
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set start [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag-start: icache flushdirtycontrols"]
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set end [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag-end: icache flushdirtycontrols"]
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange $start-$end
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache CacheBusW"]
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache SelAdrCauses"] -item e 1 -fecexprrow 4 10
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coverage exclude -scope /dut/core/ifu/bus/icache/icache/cachefsm -linerange [GetLineNum ../src/cache/cachefsm.sv "exclusion-tag: icache CacheBusRCauses"] -item e 1 -fecexprrow 1-2 12
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######################
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# Toggle exclusions
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# Not used because toggle coverage isn't measured
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######################
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# Exclude DivBusyE from all design units because rv64gc uses the fdivsqrt unit for integer division
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#coverage exclude -togglenode DivBusyE -du *
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# Exclude QuotM and RemM from MDU because rv64gc uses the fdivsqrt rather tha div unit for integer division
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#coverage exclude -togglenode /dut/core/mdu/mdu/QuotM
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#coverage exclude -togglenode /dut/core/mdu/mdu/RemM
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# StallFCause is hardwired to 0
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#coverage exclude -togglenode /dut/core/hzu/StallFCause
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