diff options
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r-- | arch/powerpc/platforms/pseries/hotplug-cpu.c | 30 | ||||
-rw-r--r-- | arch/powerpc/platforms/pseries/pseries.h | 2 | ||||
-rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 2 |
3 files changed, 25 insertions, 9 deletions
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index 1a3cb313976a..e62835a12d73 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -398,6 +398,14 @@ static int dlpar_online_cpu(struct device_node *dn) for_each_present_cpu(cpu) { if (get_hard_smp_processor_id(cpu) != thread) continue; + + if (!topology_is_primary_thread(cpu)) { + if (cpu_smt_control != CPU_SMT_ENABLED) + break; + if (!topology_smt_thread_allowed(cpu)) + break; + } + cpu_maps_update_done(); find_and_update_cpu_nid(cpu); rc = device_online(get_cpu_device(cpu)); @@ -845,15 +853,9 @@ static struct notifier_block pseries_smp_nb = { .notifier_call = pseries_smp_notifier, }; -static int __init pseries_cpu_hotplug_init(void) +void __init pseries_cpu_hotplug_init(void) { int qcss_tok; - unsigned int node; - -#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE - ppc_md.cpu_probe = dlpar_cpu_probe; - ppc_md.cpu_release = dlpar_cpu_release; -#endif /* CONFIG_ARCH_CPU_PROBE_RELEASE */ rtas_stop_self_token = rtas_function_token(RTAS_FN_STOP_SELF); qcss_tok = rtas_function_token(RTAS_FN_QUERY_CPU_STOPPED_STATE); @@ -862,12 +864,22 @@ static int __init pseries_cpu_hotplug_init(void) qcss_tok == RTAS_UNKNOWN_SERVICE) { printk(KERN_INFO "CPU Hotplug not supported by firmware " "- disabling.\n"); - return 0; + return; } smp_ops->cpu_offline_self = pseries_cpu_offline_self; smp_ops->cpu_disable = pseries_cpu_disable; smp_ops->cpu_die = pseries_cpu_die; +} + +static int __init pseries_dlpar_init(void) +{ + unsigned int node; + +#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE + ppc_md.cpu_probe = dlpar_cpu_probe; + ppc_md.cpu_release = dlpar_cpu_release; +#endif /* CONFIG_ARCH_CPU_PROBE_RELEASE */ /* Processors can be added/removed only on LPAR */ if (firmware_has_feature(FW_FEATURE_LPAR)) { @@ -886,4 +898,4 @@ static int __init pseries_cpu_hotplug_init(void) return 0; } -machine_arch_initcall(pseries, pseries_cpu_hotplug_init); +machine_arch_initcall(pseries, pseries_dlpar_init); diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h index f8bce40ebd0c..f8893ba46e83 100644 --- a/arch/powerpc/platforms/pseries/pseries.h +++ b/arch/powerpc/platforms/pseries/pseries.h @@ -75,11 +75,13 @@ static inline int dlpar_hp_pmem(struct pseries_hp_errorlog *hp_elog) #ifdef CONFIG_HOTPLUG_CPU int dlpar_cpu(struct pseries_hp_errorlog *hp_elog); +void pseries_cpu_hotplug_init(void); #else static inline int dlpar_cpu(struct pseries_hp_errorlog *hp_elog) { return -EOPNOTSUPP; } +static inline void pseries_cpu_hotplug_init(void) { } #endif /* PCI root bridge prepare function override for pseries */ diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index e2a57cfa6c83..41451b76c6e5 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -816,6 +816,8 @@ static void __init pSeries_setup_arch(void) /* Discover PIC type and setup ppc_md accordingly */ smp_init_pseries(); + // Setup CPU hotplug callbacks + pseries_cpu_hotplug_init(); if (radix_enabled() && !mmu_has_feature(MMU_FTR_GTSE)) if (!firmware_has_feature(FW_FEATURE_RPT_INVALIDATE)) |