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Fix pmp cosim

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This commit is contained in:
Jerry Zhao
2023-02-04 11:48:59 -08:00
parent 071ba76209
commit b88e583472
1 changed files with 10 additions and 6 deletions
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16
generators/chipyard/src/main/resources/csrc/cospike.cc
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@@ -212,12 +212,16 @@ extern "C" void cospike_cosim(long long int cycle,
// 4 => csr
if ((rd != 0 && type == 0) || type == 1) {
// Override reads from some CSRs
if ((insn & 0xfff0007f) == 0xf1300073 || // mimpid
(insn & 0xfff0007f) == 0xf1200073 || // marchid
(insn & 0xfff0007f) == 0xf1100073 || // mvendorid
(insn & 0xfff0007f) == 0xb0000073 || // mcycle
(insn & 0xfff0007f) == 0xb0200073 // minstret
) {
uint64_t csr_addr = insn >> 20;
bool csr_read = (insn & 0x7f) == 0x73;
if (csr_read && (
(csr_addr == 0xf13) || // mimpid
(csr_addr == 0xf12) || // marchid
(csr_addr == 0xf11) || // mvendorid
(csr_addr == 0xb00) || // mcycle
(csr_addr == 0xb02) || // minstret
(csr_addr >= 0x3b0 && csr_addr <= 0x3ef) // pmpaddr
)) {
printf("CSR override\n");
s->XPR.write(rd, wdata);
} else if (!mem_read.empty() &&