DBT-RISE/DBT-RISE-TGC
12
0
Fork 0
Code Issues 1 Pull Requests 1 Projects Releases Wiki Activity

fixes tohost behavior of SC wrapper and cycle-estimate plugin

Browse Source
This commit is contained in:
Eyck Jentzsch
2023-10-25 20:37:10 +02:00
parent b86d7a517d
commit 980c8031c3
3 changed files with 45 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
src/sysc/sc_core_adapter.h
View File

@ -70,14 +70,43 @@ public:
if (addr.access && iss::access_type::DEBUG)
return owner->write_mem_dbg(addr.val, length, data) ? iss::Ok : iss::Err;
else {
auto res = owner->write_mem(addr.val, length, data) ? iss::Ok : iss::Err;
// clear MTIP on mtimecmp write
if (addr.val == 0x2004000) {
reg_t val;
this->read_csr(iss::arch::mip, val);
if (val & (1ULL << 7)) this->write_csr(iss::arch::mip, val & ~(1ULL << 7));
auto tohost_upper = (sizeof(reg_t) == 4 && addr.val == (this->tohost + 4)) ||
(sizeof(reg_t) == 8 && addr.val == this->tohost);
auto tohost_lower = (sizeof(reg_t) == 4 && addr.val == this->tohost) ||
(sizeof(reg_t)== 64 && addr.val == this->tohost);
if (tohost_lower || tohost_upper) {
if (tohost_upper || (tohost_lower && to_host_wr_cnt > 0)) {
switch (hostvar >> 48) {
case 0:
if (hostvar != 0x1) {
SCCINFO(owner->name()) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
} else {
SCCINFO(owner->name()) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
}
this->reg.trap_state=std::numeric_limits<uint32_t>::max();
this->interrupt_sim=hostvar;
#ifndef WITH_TCC
throw(iss::simulation_stopped(hostvar));
#endif
break;
default:
break;
}
} else if (tohost_lower)
to_host_wr_cnt++;
return iss::Ok;
} else {
auto res = owner->write_mem(addr.val, length, data) ? iss::Ok : iss::Err;
// clear MTIP on mtimecmp write
if (addr.val == 0x2004000) {
reg_t val;
this->read_csr(iss::arch::mip, val);
if (val & (1ULL << 7)) this->write_csr(iss::arch::mip, val & ~(1ULL << 7));
}
return res;
}
return res;
}
}
@ -146,6 +175,8 @@ public:
private:
sysc::tgfs::core_complex *const owner;
sc_core::sc_event wfi_evt;
uint64_t hostvar;
unsigned to_host_wr_cnt = 0;
};
}
#endif /* _SYSC_SC_CORE_ADAPTER_H_ */