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74 lines
3 KiB
Text
74 lines
3 KiB
Text
# imperas.ic
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# Initialization file for rv32gc ImperasDV lock step simulation
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# David_Harris@hmc.edu 15 August 2024
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# jcarlin@hmc.edu 19 March 2025
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# SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
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# Base configuration
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--variant RV32GCK # for RV32GC
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# Bit manipulation
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--override cpu/add_Extensions=B
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--override cpu/misa_B_Zba_Zbb_Zbs=T
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# Cache block operations
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--override cpu/Zicbom=T
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--override cpu/Zicbop=T
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--override cpu/Zicboz=T
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--override cmomp_bytes=64 # Zic64b
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--override cmoz_bytes=64 # Zic64b
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--override lr_sc_grain=4 # Za64rs requires <=64; we use native word size
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# Virtual memory
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--override cpu/Sv_modes=3 # SV32 supported
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--override cpu/Svadu=T # Enable SVADU hardware update of A/D bits when menvcfg.ADUE=1
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--override cpu/Svinval=T
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# Crypto extensions
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--override cpu/Zkr=F # Zkr entropy source and seed register not supported.
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--override cpu/Zksed=F # ShangMi Crypto not supported
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--override cpu/Zksh=F # ShangMi Crypto not supported
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--override cpu/mnoise_undefined=T # nonratified mnoise register not implemented
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# Miscellaneous extensions
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--override cpu/Zicond=T
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--override cpu/Zfh=T
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--override cpu/Zfa=T
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--override cpu/Zcb=T
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--override cpu/Sstc=T
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# mcause and scause only have 4 lsbs of code and 1 msb of interrupt flag
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--override cpu/ecode_mask=0x8000000F # for RV32
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# Misaligned access (Zicclsm) is not supported
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--override cpu/unaligned=F
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# PMP Configuration
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--override cpu/PMP_registers=16
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--override cpu/PMP_undefined=T
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# PMA Settings
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# 'r': read access allowed
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# 'w': write access allowed
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# 'x': execute access allowed
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# 'a': aligned access required
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# 'A': atomic instructions NOT allowed (actually USER1 privilege needed)
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# 'P': push/pop instructions NOT allowed (actually USER2 privilege needed)
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# '1': 1-byte accesses allowed
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# '2': 2-byte accesses allowed
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# '4': 4-byte accesses allowed
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# '8': 8-byte accesses allowed
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# '-', space: ignored (use for input string formatting).
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#
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# SVxx Memory 0x0000000000 0x7FFFFFFFFF
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#
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--callcommand refRoot/cpu/setPMA -lo 0x0000000000 -hi 0xFFFFFFFFFFFFFFFFFF -attributes " ---a-- ---- " # All memory inaccessible unless defined otherwise
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--callcommand refRoot/cpu/setPMA -lo 0x0000000000 -hi 0x7FFFFFFFFF -attributes " ---a-- ---- " # INITIAL
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--callcommand refRoot/cpu/setPMA -lo 0x0000001000 -hi 0x0000001FFF -attributes " r-x-A- 1248 " # BOOTROM
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--callcommand refRoot/cpu/setPMA -lo 0x0000012100 -hi 0x000001211F -attributes " rw-aA- --48 " # SDC
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--callcommand refRoot/cpu/setPMA -lo 0x0002000000 -hi 0x000200FFFF -attributes " rw-aA- 1248 " # CLINT
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--callcommand refRoot/cpu/setPMA -lo 0x000C000000 -hi 0x000FFFFFFF -attributes " rw-aA- --4- " # PLIC
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--callcommand refRoot/cpu/setPMA -lo 0x0010000000 -hi 0x0010000007 -attributes " rw-aA- 1--- " # UART0
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--callcommand refRoot/cpu/setPMA -lo 0x0010060000 -hi 0x00100600FF -attributes " rw-aA- --4- " # GPIO
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--callcommand refRoot/cpu/setPMA -lo 0x0010040000 -hi 0x0010040FFF -attributes " rw-aA- --4- " # SPI
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--callcommand refRoot/cpu/setPMA -lo 0x0080000000 -hi 0x008FFFFFFF -attributes " rwx--- 1248 " # UNCORE_RAM
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