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applies clang-format and updates SystemC HTIF implementation

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This commit is contained in:
Eyck Jentzsch
2025-03-06 12:10:12 +01:00
parent 03cbd305c6
commit 383d762abc
7 changed files with 61 additions and 39 deletions
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88
src/sysc/sc_core_adapter.h
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@ -71,44 +71,61 @@ public:
iss::status write_mem(phys_addr_t addr, unsigned length, const uint8_t* const data) override {
if(addr.access && iss::access_type::DEBUG)
return owner->write_mem_dbg(addr.val, length, data) ? iss::Ok : iss::Err;
else {
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->hier_name())
<< "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar << "), stopping simulation";
} else {
SCCINFO(owner->hier_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));
if(addr.val == this->tohost) {
reg_t cur_data = *reinterpret_cast<const reg_t*>(data);
// Extract Device (bits 63:56)
uint8_t device = sizeof(reg_t) == 4 ? 0 : (cur_data >> 56) & 0xFF;
// Extract Command (bits 55:48)
uint8_t command = sizeof(reg_t) == 4 ? 0 : (cur_data >> 48) & 0xFF;
// Extract payload (bits 47:0)
uint64_t payload_addr = cur_data & 0xFFFFFFFFFFFFULL; // 24bits
if(payload_addr & 1) {
if(payload_addr != 0x1) {
SCCERR(owner->hier_name()) << "tohost value is 0x" << std::hex << payload_addr << std::dec << " (" << payload_addr
<< "), stopping simulation";
} else {
SCCINFO(owner->hier_name())
<< "tohost value is 0x" << std::hex << payload_addr << std::dec << " (" << payload_addr << "), stopping simulation";
}
return res;
this->reg.trap_state = std::numeric_limits<uint32_t>::max();
this->interrupt_sim = payload_addr;
#ifndef WITH_TCC
throw(iss::simulation_stopped(payload_addr));
#endif
return iss::Ok;
}
if(device == 0 && command == 0) {
std::array<uint64_t, 8> loaded_payload;
auto res = owner->read_mem(payload_addr, 8 * sizeof(uint64_t), reinterpret_cast<uint8_t*>(loaded_payload.data()), false)
? iss::Ok
: iss::Err;
if(res == iss::Err) {
SCCERR(owner->hier_name()) << "Syscall read went wrong";
return iss::Ok;
}
uint64_t syscall_num = loaded_payload.at(0);
if(syscall_num == 64) // SYS_WRITE
return this->execute_sys_write(this, loaded_payload, PLAT::MEM);
SCCERR(owner->hier_name()) << "tohost syscall with number 0x" << std::hex << syscall_num << std::dec << " (" << syscall_num
<< ") not implemented";
this->reg.trap_state = std::numeric_limits<uint32_t>::max();
this->interrupt_sim = payload_addr;
return iss::Ok;
}
SCCERR(owner->hier_name()) << "tohost functionality not implemented for device " << device << " and command " << command;
this->reg.trap_state = std::numeric_limits<uint32_t>::max();
this->interrupt_sim = payload_addr;
return iss::Ok;
}
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;
}
iss::status read_csr(unsigned addr, reg_t& val) override {
@ -165,7 +182,6 @@ public:
private:
sysc::tgfs::core_complex_if* const owner{nullptr};
sc_core::sc_event wfi_evt;
uint64_t hostvar{std::numeric_limits<uint64_t>::max()};
unsigned to_host_wr_cnt = 0;
bool first{true};
};