diff options
Diffstat (limited to 'arch/s390/kernel/smp.c')
| -rw-r--r-- | arch/s390/kernel/smp.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index fbba37ec53cf..4df56fdb2488 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -671,6 +671,25 @@ int smp_cpu_get_polarization(int cpu) return per_cpu(pcpu_devices, cpu).polarization; } +void smp_cpu_set_capacity(int cpu, unsigned long val) +{ + per_cpu(pcpu_devices, cpu).capacity = val; +} + +unsigned long smp_cpu_get_capacity(int cpu) +{ + return per_cpu(pcpu_devices, cpu).capacity; +} + +void smp_set_core_capacity(int cpu, unsigned long val) +{ + int i; + + cpu = smp_get_base_cpu(cpu); + for (i = cpu; (i <= cpu + smp_cpu_mtid) && (i < nr_cpu_ids); i++) + smp_cpu_set_capacity(i, val); +} + int smp_cpu_get_cpu_address(int cpu) { return per_cpu(pcpu_devices, cpu).address; @@ -719,6 +738,7 @@ static int smp_add_core(struct sclp_core_entry *core, cpumask_t *avail, else pcpu->state = CPU_STATE_STANDBY; smp_cpu_set_polarization(cpu, POLARIZATION_UNKNOWN); + smp_cpu_set_capacity(cpu, CPU_CAPACITY_HIGH); set_cpu_present(cpu, true); if (!early && arch_register_cpu(cpu)) set_cpu_present(cpu, false); @@ -961,6 +981,7 @@ void __init smp_prepare_boot_cpu(void) ipl_pcpu->state = CPU_STATE_CONFIGURED; lc->pcpu = (unsigned long)ipl_pcpu; smp_cpu_set_polarization(0, POLARIZATION_UNKNOWN); + smp_cpu_set_capacity(0, CPU_CAPACITY_HIGH); } void __init smp_setup_processor_id(void) |