static void
htif_handle_entry(struct htif_softc *sc)
{
uint64_t entry;
uint8_t devcmd;
uint8_t devid;
entry = machine_command(ECALL_HTIF_GET_ENTRY, 0);
while (entry) {
devid = HTIF_DEV_ID(entry);
devcmd = HTIF_DEV_CMD(entry);
if (devcmd == HTIF_CMD_IDENTIFY) {
/* Enumeration interrupt */
if (devid == sc->identify_id)
sc->identify_done = 1;
} else {
/* Device interrupt */
if (intrs[devid].func != NULL)
intrs[devid].func(intrs[devid].arg, entry);
}
entry = machine_command(ECALL_HTIF_GET_ENTRY, 0);
}
}
void
identify_cpu(void)
{
const struct cpu_parts *cpu_partsp;
uint32_t part_id;
uint32_t impl_id;
uint64_t mimpid;
uint64_t misa;
u_int cpu;
size_t i;
cpu_partsp = NULL;
mimpid = machine_command(ECALL_MIMPID_GET, 0);
misa = machine_command(ECALL_MCPUID_GET, 0);
cpu = PCPU_GET(cpuid);
impl_id = CPU_IMPL(mimpid);
for (i = 0; i < nitems(cpu_implementers); i++) {
if (impl_id == cpu_implementers[i].impl_id ||
cpu_implementers[i].impl_id == 0) {
cpu_desc[cpu].cpu_impl = impl_id;
cpu_desc[cpu].cpu_impl_name = cpu_implementers[i].impl_name;
cpu_partsp = cpu_parts_std;
break;
}
}
part_id = CPU_PART(misa);
for (i = 0; &cpu_partsp[i] != NULL; i++) {
if (part_id == cpu_partsp[i].part_id ||
cpu_partsp[i].part_id == -1) {
cpu_desc[cpu].cpu_part_num = part_id;
cpu_desc[cpu].cpu_part_name = cpu_partsp[i].part_name;
break;
}
}
/* Print details for boot CPU or if we want verbose output */
if (cpu == 0 || bootverbose) {
printf("CPU(%d): %s %s\n", cpu,
cpu_desc[cpu].cpu_impl_name,
cpu_desc[cpu].cpu_part_name);
}
}
uint64_t
htif_command(uint64_t arg)
{
return (machine_command(ECALL_HTIF_CMD, arg));
}
