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Bug fixes

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This commit is contained in:
David Harris 2025-06-11 10:13:50 -07:00
parent 7dc9a013fc
commit 1648f0afa2
2 changed files with 5 additions and 5 deletions
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4
config/rv32gc/imperas.ic
View file

@ -17,7 +17,7 @@
--override cpu/Zicboz=T
--override cmomp_bytes=64 # Zic64b
--override cmoz_bytes=64 # Zic64b
--override lr_sc_grain=0 # Za64rs requires <=64; we use native word size
--override lr_sc_grain=4 # Za64rs requires <=64; we use native word size
# Virtual memory
--override cpu/Sv_modes=3 # SV32 supported
@ -45,7 +45,7 @@
# PMP Configuration
--override cpu/PMP_registers=16
--override cpu/PMP_grain=4 # 64-byte grains to match cache line width
--override cpu/PMP_grain=0 # 64-byte grains to match cache line width
--override cpu/PMP_decompose=T # unaligned accesses are decomposed into separate aligned accesses
--override cpu/PMP_undefined=T # access to unimplemented PMP registers cause illegal instruction exception

6
testbench/common/riscvassertions.sv
View file

@ -22,9 +22,9 @@
module riscvassertions import cvw::*; #(parameter cvw_t P);
initial begin
assert (P.PMP_ENTRIES == 0 | P.PMP_ENTRIES==16 | P.PMP_ENTRIES==64) else $fatal(1, "Illegal number of PMP entries: PMP_ENTRIES must be 0, 16, or 64");
assert (P.PMP_G > 0 | P.XLEN == 32 | P.PMP_ENTRIES == 0) else $fatal(1, "RV64 requires PMP_G at least 1 to avoid checking for 8-byte accesses to 4-byte region");
assert ((P.PMP_G >= $clog2(P.DCACHE_LINELENINBITS/8)-2) | !P.ZICCLSM_SUPPORTED | P.PMP_ENTRIES == 0) else $fatal(1, "Systems that support misaligned data with PMP must have grain size of at least one cache line so accesses that span grains will also cause spills");
assert ((P.PMP_G >= $clog2(P.ICACHE_LINELENINBITS/8)-2) | !P.ZCA_SUPPORTED | (P.PMP_ENTRIES == 0) | !P.ICACHE_SUPPORTED) else $fatal(1, "Systems that support compressed instructions with PMP must have grain size of at least one cache line so fetches that span grains will also cause spills");
// assert (P.PMP_G > 0 | P.XLEN == 32 | P.PMP_ENTRIES == 0) else $fatal(1, "RV64 requires PMP_G at least 1 to avoid checking for 8-byte accesses to 4-byte region");
// assert ((P.PMP_G >= $clog2(P.DCACHE_LINELENINBITS/8)-2) | !P.ZICCLSM_SUPPORTED | P.PMP_ENTRIES == 0) else $fatal(1, "Systems that support misaligned data with PMP must have grain size of at least one cache line so accesses that span grains will also cause spills");
// assert ((P.PMP_G >= $clog2(P.ICACHE_LINELENINBITS/8)-2) | !P.ZCA_SUPPORTED | (P.PMP_ENTRIES == 0) | !P.ICACHE_SUPPORTED) else $fatal(1, "Systems that support compressed instructions with PMP must have grain size of at least one cache line so fetches that span grains will also cause spills");
assert (P.PMP_G < P.PA_BITS-2 | P.PMP_ENTRIES == 0) else $fatal(1, "PMP granularity must be less than the number of physical address bits");
assert (P.IDIV_BITSPERCYCLE == 1 | P.IDIV_BITSPERCYCLE==2 | P.IDIV_BITSPERCYCLE==4) else $fatal(1, "Illegal number of divider bits/cycle: IDIV_BITSPERCYCLE must be 1, 2, or 4");
assert (P.F_SUPPORTED | !P.D_SUPPORTED) else $fatal(1, "Can't support double fp (D) without supporting float (F)");