void
identify_cpu(void)
{
u_int midr;
u_int impl_id;
u_int part_id;
u_int cpu;
uint64_t mpidr;
size_t i;
const struct cpu_parts *cpu_partsp = NULL;
cpu = PCPU_GET(cpuid);
midr = get_midr();
impl_id = CPU_IMPL(midr);
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_implementers[i].cpu_parts;
break;
}
}
part_id = CPU_PART(midr);
for (i = 0; &cpu_partsp[i] != NULL; i++) {
if (part_id == cpu_partsp[i].part_id ||
cpu_partsp[i].part_id == 0) {
cpu_desc[cpu].cpu_part_num = part_id;
cpu_desc[cpu].cpu_part_name = cpu_partsp[i].part_name;
break;
}
}
printf("CPU: %s %s r%dp%d\n", cpu_desc[cpu].cpu_impl_name,
cpu_desc[cpu].cpu_part_name, CPU_VAR(midr), CPU_REV(midr));
/*
* Save affinity for the boot CPU.
* (CPU0 in the internal system enumeration.
*/
mpidr = get_mpidr();
CPU_AFFINITY(0) = mpidr & CPU_AFF_MASK;
if (bootverbose)
printf("CPU%u affinity: %u.%u.%u.%u\n", 0, CPU_AFF0(mpidr),
CPU_AFF1(mpidr), CPU_AFF2(mpidr), CPU_AFF3(mpidr));
}
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);
}
}
