diff options
Diffstat (limited to 'arch/s390/kernel/smp.c')
| -rw-r--r-- | arch/s390/kernel/smp.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index a08bd2522dd9..10dbb12eb14d 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -212,6 +212,8 @@ static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu) lc->spinlock_lockval = arch_spin_lockval(cpu); lc->spinlock_index = 0; lc->br_r1_trampoline = 0x07f1; /* br %r1 */ + lc->return_lpswe = gen_lpswe(__LC_RETURN_PSW); + lc->return_mcck_lpswe = gen_lpswe(__LC_RETURN_MCCK_PSW); if (nmi_alloc_per_cpu(lc)) goto out_async; if (vdso_alloc_per_cpu(lc)) @@ -401,7 +403,7 @@ int smp_find_processor_id(u16 address) return -1; } -bool arch_vcpu_is_preempted(int cpu) +bool notrace arch_vcpu_is_preempted(int cpu) { if (test_cpu_flag_of(CIF_ENABLED_WAIT, cpu)) return false; @@ -411,7 +413,7 @@ bool arch_vcpu_is_preempted(int cpu) } EXPORT_SYMBOL(arch_vcpu_is_preempted); -void smp_yield_cpu(int cpu) +void notrace smp_yield_cpu(int cpu) { if (!MACHINE_HAS_DIAG9C) return; @@ -701,6 +703,11 @@ int smp_cpu_get_polarization(int cpu) return pcpu_devices[cpu].polarization; } +int smp_cpu_get_cpu_address(int cpu) +{ + return pcpu_devices[cpu].address; +} + static void __ref smp_get_core_info(struct sclp_core_info *info, int early) { static int use_sigp_detection; @@ -851,12 +858,13 @@ static void smp_init_secondary(void) init_cpu_timer(); vtime_init(); pfault_init(); - notify_cpu_starting(smp_processor_id()); + notify_cpu_starting(cpu); if (topology_cpu_dedicated(cpu)) set_cpu_flag(CIF_DEDICATED_CPU); else clear_cpu_flag(CIF_DEDICATED_CPU); - set_cpu_online(smp_processor_id(), true); + set_cpu_online(cpu, true); + update_cpu_masks(); inc_irq_stat(CPU_RST); local_irq_enable(); cpu_startup_entry(CPUHP_AP_ONLINE_IDLE); @@ -928,6 +936,7 @@ int __cpu_disable(void) /* Handle possible pending IPIs */ smp_handle_ext_call(); set_cpu_online(smp_processor_id(), false); + update_cpu_masks(); /* Disable pseudo page faults on this cpu. */ pfault_fini(); /* Disable interrupt sources via control register. */ |