diff options
26 files changed, 107 insertions, 82 deletions
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 9e392a30d19..777c8d8bd5e 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -528,10 +528,6 @@ setup_arch (char **cmdline_p) #ifdef CONFIG_SMP cpu_physical_id(0) = hard_smp_processor_id(); - - cpu_set(0, cpu_sibling_map[0]); - cpu_set(0, cpu_core_map[0]); - check_for_logical_procs(); if (smp_num_cpucores > 1) printk(KERN_INFO @@ -873,6 +869,14 @@ cpu_init (void) void *cpu_data; cpu_data = per_cpu_init(); + /* + * insert boot cpu into sibling and core mapes + * (must be done after per_cpu area is setup) + */ + if (smp_processor_id() == 0) { + cpu_set(0, per_cpu(cpu_sibling_map, 0)); + cpu_set(0, cpu_core_map[0]); + } /* * We set ar.k3 so that assembly code in MCA handler can compute diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 308772f7cdd..c57dbce25c1 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -138,7 +138,9 @@ cpumask_t cpu_possible_map = CPU_MASK_NONE; EXPORT_SYMBOL(cpu_possible_map); cpumask_t cpu_core_map[NR_CPUS] __cacheline_aligned; -cpumask_t cpu_sibling_map[NR_CPUS] __cacheline_aligned; +DEFINE_PER_CPU_SHARED_ALIGNED(cpumask_t, cpu_sibling_map); +EXPORT_PER_CPU_SYMBOL(cpu_sibling_map); + int smp_num_siblings = 1; int smp_num_cpucores = 1; @@ -650,12 +652,12 @@ clear_cpu_sibling_map(int cpu) { int i; - for_each_cpu_mask(i, cpu_sibling_map[cpu]) - cpu_clear(cpu, cpu_sibling_map[i]); + for_each_cpu_mask(i, per_cpu(cpu_sibling_map, cpu)) + cpu_clear(cpu, per_cpu(cpu_sibling_map, i)); for_each_cpu_mask(i, cpu_core_map[cpu]) cpu_clear(cpu, cpu_core_map[i]); - cpu_sibling_map[cpu] = cpu_core_map[cpu] = CPU_MASK_NONE; + per_cpu(cpu_sibling_map, cpu) = cpu_core_map[cpu] = CPU_MASK_NONE; } static void @@ -666,7 +668,7 @@ remove_siblinginfo(int cpu) if (cpu_data(cpu)->threads_per_core == 1 && cpu_data(cpu)->cores_per_socket == 1) { cpu_clear(cpu, cpu_core_map[cpu]); - cpu_clear(cpu, cpu_sibling_map[cpu]); + cpu_clear(cpu, per_cpu(cpu_sibling_map, cpu)); return; } @@ -807,8 +809,8 @@ set_cpu_sibling_map(int cpu) cpu_set(i, cpu_core_map[cpu]); cpu_set(cpu, cpu_core_map[i]); if (cpu_data(cpu)->core_id == cpu_data(i)->core_id) { - cpu_set(i, cpu_sibling_map[cpu]); - cpu_set(cpu, cpu_sibling_map[i]); + cpu_set(i, per_cpu(cpu_sibling_map, cpu)); + cpu_set(cpu, per_cpu(cpu_sibling_map, i)); } } } @@ -839,7 +841,7 @@ __cpu_up (unsigned int cpu) if (cpu_data(cpu)->threads_per_core == 1 && cpu_data(cpu)->cores_per_socket == 1) { - cpu_set(cpu, cpu_sibling_map[cpu]); + cpu_set(cpu, per_cpu(cpu_sibling_map, cpu)); cpu_set(cpu, cpu_core_map[cpu]); return 0; } diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 36c90ba2d31..2de00f870ed 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -413,16 +413,28 @@ void __init smp_setup_cpu_maps(void) of_node_put(dn); } + vdso_data->processorCount = num_present_cpus(); +#endif /* CONFIG_PPC64 */ +} + +/* + * Being that cpu_sibling_map is now a per_cpu array, then it cannot + * be initialized until the per_cpu areas have been created. This + * function is now called from setup_per_cpu_areas(). + */ +void __init smp_setup_cpu_sibling_map(void) +{ +#if defined(CONFIG_PPC64) + int cpu; + /* * Do the sibling map; assume only two threads per processor. */ for_each_possible_cpu(cpu) { - cpu_set(cpu, cpu_sibling_map[cpu]); + cpu_set(cpu, per_cpu(cpu_sibling_map, cpu)); if (cpu_has_feature(CPU_FTR_SMT)) - cpu_set(cpu ^ 0x1, cpu_sibling_map[cpu]); + cpu_set(cpu ^ 0x1, per_cpu(cpu_sibling_map, cpu)); } - - vdso_data->processorCount = num_present_cpus(); #endif /* CONFIG_PPC64 */ } #endif /* CONFIG_SMP */ diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 008ab6823b0..0e014550b83 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -597,6 +597,9 @@ void __init setup_per_cpu_areas(void) paca[i].data_offset = ptr - __per_cpu_start; memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start); } + + /* Now that per_cpu is setup, initialize cpu_sibling_map */ + smp_setup_cpu_sibling_map(); } #endif diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index d30f08fa029..338950aeb6f 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -61,11 +61,11 @@ struct thread_info *secondary_ti; cpumask_t cpu_possible_map = CPU_MASK_NONE; cpumask_t cpu_online_map = CPU_MASK_NONE; -cpumask_t cpu_sibling_map[NR_CPUS] = { [0 ... NR_CPUS-1] = CPU_MASK_NONE }; +DEFINE_PER_CPU(cpumask_t, cpu_sibling_map) = CPU_MASK_NONE; EXPORT_SYMBOL(cpu_online_map); EXPORT_SYMBOL(cpu_possible_map); -EXPORT_SYMBOL(cpu_sibling_map); +EXPORT_PER_CPU_SYMBOL(cpu_sibling_map); /* SMP operations for this machine */ struct smp_ops_t *smp_ops; diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq.c b/arch/powerpc/platforms/cell/cbe_cpufreq.c index 5123e9d4164..13d5a87f13b 100644 --- a/arch/powerpc/platforms/cell/cbe_cpufreq.c +++ b/arch/powerpc/platforms/cell/cbe_cpufreq.c @@ -117,7 +117,7 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->cur = cbe_freqs[cur_pmode].frequency; #ifdef CONFIG_SMP - policy->cpus = cpu_sibling_map[policy->cpu]; + policy->cpus = per_cpu(cpu_sibling_map, policy->cpu); #endif cpufreq_frequency_table_get_attr(cbe_freqs, policy->cpu); diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index c73b7a48b03..407d74a8a54 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -52,14 +52,13 @@ int sparc64_multi_core __read_mostly; cpumask_t cpu_possible_map __read_mostly = CPU_MASK_NONE; cpumask_t cpu_online_map __read_mostly = CPU_MASK_NONE; -cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly = - { [0 ... NR_CPUS-1] = CPU_MASK_NONE }; +DEFINE_PER_CPU(cpumask_t, cpu_sibling_map) = CPU_MASK_NONE; cpumask_t cpu_core_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = CPU_MASK_NONE }; EXPORT_SYMBOL(cpu_possible_map); EXPORT_SYMBOL(cpu_online_map); -EXPORT_SYMBOL(cpu_sibling_map); +EXPORT_PER_CPU_SYMBOL(cpu_sibling_map); EXPORT_SYMBOL(cpu_core_map); static cpumask_t smp_commenced_mask; @@ -1261,16 +1260,16 @@ void __devinit smp_fill_in_sib_core_maps(void) for_each_present_cpu(i) { unsigned int j; - cpus_clear(cpu_sibling_map[i]); + cpus_clear(per_cpu(cpu_sibling_map, i)); if (cpu_data(i).proc_id == -1) { - cpu_set(i, cpu_sibling_map[i]); + cpu_set(i, per_cpu(cpu_sibling_map, i)); continue; } for_each_present_cpu(j) { if (cpu_data(i).proc_id == cpu_data(j).proc_id) - cpu_set(j, cpu_sibling_map[i]); + cpu_set(j, per_cpu(cpu_sibling_map, i)); } } } @@ -1342,9 +1341,9 @@ int __cpu_disable(void) cpu_clear(cpu, cpu_core_map[i]); cpus_clear(cpu_core_map[cpu]); - for_each_cpu_mask(i, cpu_sibling_map[cpu]) - cpu_clear(cpu, cpu_sibling_map[i]); - cpus_clear(cpu_sibling_map[cpu]); + for_each_cpu_mask(i, per_cpu(cpu_sibling_map, cpu)) + cpu_clear(cpu, per_cpu(cpu_sibling_map, i)); + cpus_clear(per_cpu(cpu_sibling_map, cpu)); c = &cpu_data(cpu); diff --git a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c index 8eb414b906d..793eae854f4 100644 --- a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c +++ b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c @@ -200,7 +200,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) unsigned int i; #ifdef CONFIG_SMP - policy->cpus = cpu_sibling_map[policy->cpu]; + policy->cpus = per_cpu(cpu_sibling_map, policy->cpu); #endif /* Errata workaround */ diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c index 36685e8f7be..14d68aa301e 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c +++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c @@ -322,7 +322,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) /* only run on CPU to be set, or on its sibling */ #ifdef CONFIG_SMP - policy->cpus = cpu_sibling_map[policy->cpu]; + policy->cpus = per_cpu(cpu_sibling_map, policy->cpu); #endif cpus_allowed = current->cpus_allowed; diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c index e2f4a1c6854..4ee1e5ee9b5 100644 --- a/arch/x86/kernel/io_apic_32.c +++ b/arch/x86/kernel/io_apic_32.c @@ -378,7 +378,7 @@ static struct irq_cpu_info { #define IRQ_ALLOWED(cpu, allowed_mask) cpu_isset(cpu, allowed_mask) -#define CPU_TO_PACKAGEINDEX(i) (first_cpu(cpu_sibling_map[i])) +#define CPU_TO_PACKAGEINDEX(i) (first_cpu(per_cpu(cpu_sibling_map, i))) static cpumask_t balance_irq_affinity[NR_IRQS] = { [0 ... NR_IRQS-1] = CPU_MASK_ALL @@ -598,7 +598,7 @@ tryanotherirq: * (A+B)/2 vs B */ load = CPU_IRQ(min_loaded) >> 1; - for_each_cpu_mask(j, cpu_sibling_map[min_loaded]) { + for_each_cpu_mask(j, per_cpu(cpu_sibling_map, min_loaded)) { if (load > CPU_IRQ(j)) { /* This won't change cpu_sibling_map[min_loaded] */ load = CPU_IRQ(j); diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c index 4cbab48ba86..31fc08bd15e 100644 --- a/arch/x86/kernel/smpboot_32.c +++ b/arch/x86/kernel/smpboot_32.c @@ -70,8 +70,8 @@ EXPORT_SYMBOL(smp_num_siblings); int cpu_llc_id[NR_CPUS] __cpuinitdata = {[0 ... NR_CPUS-1] = BAD_APICID}; /* representing HT siblings of each logical CPU */ -cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly; -EXPORT_SYMBOL(cpu_sibling_map); +DEFINE_PER_CPU(cpumask_t, cpu_sibling_map); +EXPORT_PER_CPU_SYMBOL(cpu_sibling_map); /* representing HT and core siblings of each logical CPU */ DEFINE_PER_CPU(cpumask_t, cpu_core_map); @@ -319,8 +319,8 @@ void __cpuinit set_cpu_sibling_map(int cpu) for_each_cpu_mask(i, cpu_sibling_setup_map) { if (c[cpu].phys_proc_id == c[i].phys_proc_id && c[cpu].cpu_core_id == c[i].cpu_core_id) { - cpu_set(i, cpu_sibling_map[cpu]); - cpu_set(cpu, cpu_sibling_map[i]); + cpu_set(i, per_cpu(cpu_sibling_map, cpu)); + cpu_set(cpu, per_cpu(cpu_sibling_map, i)); cpu_set(i, per_cpu(cpu_core_map, cpu)); cpu_set(cpu, per_cpu(cpu_core_map, i)); cpu_set(i, c[cpu].llc_shared_map); @@ -328,13 +328,13 @@ void __cpuinit set_cpu_sibling_map(int cpu) } } } else { - cpu_set(cpu, cpu_sibling_map[cpu]); + cpu_set(cpu, per_cpu(cpu_sibling_map, cpu)); } cpu_set(cpu, c[cpu].llc_shared_map); if (current_cpu_data.x86_max_cores == 1) { - per_cpu(cpu_core_map, cpu) = cpu_sibling_map[cpu]; + per_cpu(cpu_core_map, cpu) = per_cpu(cpu_sibling_map, cpu); c[cpu].booted_cores = 1; return; } @@ -351,12 +351,12 @@ void __cpuinit set_cpu_sibling_map(int cpu) /* * Does this new cpu bringup a new core? */ - if (cpus_weight(cpu_sibling_map[cpu]) == 1) { + if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1) { /* * for each core in package, increment * the booted_cores for this new cpu */ - if (first_cpu(cpu_sibling_map[i]) == i) + if (first_cpu(per_cpu(cpu_sibling_map, i)) == i) c[cpu].booted_cores++; /* * increment the core count for all @@ -983,7 +983,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus) printk(KERN_NOTICE "Local APIC not detected." " Using dummy APIC emulation.\n"); map_cpu_to_logical_apicid(); - cpu_set(0, cpu_sibling_map[0]); + cpu_set(0, per_cpu(cpu_sibling_map, 0)); cpu_set(0, per_cpu(cpu_core_map, 0)); return; } @@ -1008,7 +1008,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus) printk(KERN_ERR "... forcing use of dummy APIC emulation. (tell your hw vendor)\n"); smpboot_clear_io_apic_irqs(); phys_cpu_present_map = physid_mask_of_physid(0); - cpu_set(0, cpu_sibling_map[0]); + cpu_set(0, per_cpu(cpu_sibling_map, 0)); cpu_set(0, per_cpu(cpu_core_map, 0)); return; } @@ -1023,7 +1023,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus) printk(KERN_INFO "SMP mode deactivated, forcing use of dummy APIC emulation.\n"); smpboot_clear_io_apic_irqs(); phys_cpu_present_map = physid_mask_of_physid(0); - cpu_set(0, cpu_sibling_map[0]); + cpu_set(0, per_cpu(cpu_sibling_map, 0)); cpu_set(0, per_cpu(cpu_core_map, 0)); return; } @@ -1102,15 +1102,15 @@ static void __init smp_boot_cpus(unsigned int max_cpus) Dprintk("Boot done.\n"); /* - * construct cpu_sibling_map[], so that we can tell sibling CPUs + * construct cpu_sibling_map, so that we can tell sibling CPUs * efficiently. */ for (cpu = 0; cpu < NR_CPUS; cpu++) { - cpus_clear(cpu_sibling_map[cpu]); + cpus_clear(per_cpu(cpu_sibling_map, cpu)); cpus_clear(per_cpu(cpu_core_map, cpu)); } - cpu_set(0, cpu_sibling_map[0]); + cpu_set(0, per_cpu(cpu_sibling_map, 0)); cpu_set(0, per_cpu(cpu_core_map, 0)); smpboot_setup_io_apic(); @@ -1153,13 +1153,13 @@ void remove_siblinginfo(int cpu) /*/ * last thread sibling in this cpu core going down */ - if (cpus_weight(cpu_sibling_map[cpu]) == 1) + if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1) c[sibling].booted_cores--; } - for_each_cpu_mask(sibling, cpu_sibling_map[cpu]) - cpu_clear(cpu, cpu_sibling_map[sibling]); - cpus_clear(cpu_sibling_map[cpu]); + for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu)) + cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling)); + cpus_clear(per_cpu(cpu_sibling_map, cpu)); cpus_clear(per_cpu(cpu_core_map, cpu)); c[cpu].phys_proc_id = 0; c[cpu].cpu_core_id = 0; diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c index 6723c862282..0faa0a0af27 100644 --- a/arch/x86/kernel/smpboot_64.c +++ b/arch/x86/kernel/smpboot_64.c @@ -91,8 +91,8 @@ EXPORT_SYMBOL(cpu_data); int smp_threads_ready; /* representing HT siblings of each logical CPU */ -cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly; -EXPORT_SYMBOL(cpu_sibling_map); +DEFINE_PER_CPU(cpumask_t, cpu_sibling_map); +EXPORT_PER_CPU_SYMBOL(cpu_sibling_map); /* representing HT and core siblings of each logical CPU */ DEFINE_PER_CPU(cpumask_t, cpu_core_map); @@ -262,8 +262,8 @@ static inline void set_cpu_sibling_map(int cpu) for_each_cpu_mask(i, cpu_sibling_setup_map) { if (c[cpu].phys_proc_id == c[i].phys_proc_id && c[cpu].cpu_core_id == c[i].cpu_core_id) { - cpu_set(i, cpu_sibling_map[cpu]); - cpu_set(cpu, cpu_sibling_map[i]); + cpu_set(i, per_cpu(cpu_sibling_map, cpu)); + cpu_set(cpu, per_cpu(cpu_sibling_map, i)); cpu_set(i, per_cpu(cpu_core_map, cpu)); cpu_set(cpu, per_cpu(cpu_core_map, i)); cpu_set(i, c[cpu].llc_shared_map); @@ -271,13 +271,13 @@ static inline void set_cpu_sibling_map(int cpu) } } } else { - cpu_set(cpu, cpu_sibling_map[cpu]); + cpu_set(cpu, per_cpu(cpu_sibling_map, cpu)); } cpu_set(cpu, c[cpu].llc_shared_map); if (current_cpu_data.x86_max_cores == 1) { - per_cpu(cpu_core_map, cpu) = cpu_sibling_map[cpu]; + per_cpu(cpu_core_map, cpu) = per_cpu(cpu_sibling_map, cpu); c[cpu].booted_cores = 1; return; } @@ -294,12 +294,12 @@ static inline void set_cpu_sibling_map(int cpu) /* * Does this new cpu bringup a new core? */ - if (cpus_weight(cpu_sibling_map[cpu]) == 1) { + if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1) { /* * for each core in package, increment * the booted_cores for this new cpu */ - if (first_cpu(cpu_sibling_map[i]) == i) + if (first_cpu(per_cpu(cpu_sibling_map, i)) == i) c[cpu].booted_cores++; /* * increment the core count for all @@ -735,7 +735,7 @@ static __init void disable_smp(void) phys_cpu_present_map = physid_mask_of_physid(boot_cpu_id); else phys_cpu_present_map = physid_mask_of_physid(0); - cpu_set(0, cpu_sibling_map[0]); + cpu_set(0, per_cpu(cpu_sibling_map, 0)); cpu_set(0, per_cpu(cpu_core_map, 0)); } @@ -976,13 +976,13 @@ static void remove_siblinginfo(int cpu) /* * last thread sibling in this cpu core going down */ - if (cpus_weight(cpu_sibling_map[cpu]) == 1) + if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1) c[sibling].booted_cores--; } - for_each_cpu_mask(sibling, cpu_sibling_map[cpu]) - cpu_clear(cpu, cpu_sibling_map[sibling]); - cpus_clear(cpu_sibling_map[cpu]); + for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu)) + cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling)); + cpus_clear(per_cpu(cpu_sibling_map, cpu)); cpus_clear(per_cpu(cpu_core_map, cpu)); c[cpu].phys_proc_id = 0; c[cpu].cpu_core_id = 0; diff --git a/arch/x86/oprofile/op_model_p4.c b/arch/x86/oprofile/op_model_p4.c index 47925927b12..56b4757a1f4 100644 --- a/arch/x86/oprofile/op_model_p4.c +++ b/arch/x86/oprofile/op_model_p4.c @@ -379,7 +379,7 @@ static unsigned int get_stagger(void) { #ifdef CONFIG_SMP int cpu = smp_processor_id(); - return (cpu != first_cpu(cpu_sibling_map[cpu])); + return (cpu != first_cpu(per_cpu(cpu_sibling_map, cpu))); #endif return 0; } diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 539d42530fc..4fa33c27ccb 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -147,7 +147,7 @@ void __init xen_smp_prepare_boot_cpu(void) make_lowmem_page_readwrite(&per_cpu__gdt_page); for (cpu = 0; cpu < NR_CPUS; cpu++) { - cpus_clear(cpu_sibling_map[cpu]); + cpus_clear(per_cpu(cpu_sibling_map, cpu)); /* * cpu_core_map lives in a per cpu area that is cleared * when the per cpu array is allocated. @@ -164,7 +164,7 @@ void __init xen_smp_prepare_cpus(unsigned int max_cpus) unsigned cpu; for (cpu = 0; cpu < NR_CPUS; cpu++) { - cpus_clear(cpu_sibling_map[cpu]); + cpus_clear(per_cpu(cpu_sibling_map, cpu)); /* * cpu_core_ map will be zeroed when the per * cpu area is allocated. diff --git a/block/blktrace.c b/block/blktrace.c index 775471ef84a..d00ac3993c1 100644 --- a/block/blktrace.c +++ b/block/blktrace.c @@ -550,7 +550,7 @@ static void blk_trace_set_ht_offsets(void) for_each_online_cpu(cpu) { unsigned long long *cpu_off, *sibling_off; - for_each_cpu_mask(i, cpu_sibling_map[cpu]) { + for_each_cpu_mask(i, per_cpu(cpu_sibling_map, cpu)) { if (i == cpu) continue; diff --git a/include/asm-ia64/smp.h b/include/asm-ia64/smp.h index 6314b29e8c4..1703c9d885b 100644 --- a/include/asm-ia64/smp.h +++ b/include/asm-ia64/smp.h @@ -58,7 +58,7 @@ extern char no_int_routing __devinitdata; extern cpumask_t cpu_online_map; extern cpumask_t cpu_core_map[NR_CPUS]; -extern cpumask_t cpu_sibling_map[NR_CPUS]; +DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); extern int smp_num_siblings; extern int smp_num_cpucores; extern void __iomem *ipi_base_addr; diff --git a/include/asm-ia64/topology.h b/include/asm-ia64/topology.h index 233f1caae04..2d67b72b18d 100644 --- a/include/asm-ia64/topology.h +++ b/include/asm-ia64/topology.h @@ -112,7 +112,7 @@ void build_cpu_to_node_map(void); #define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id) #define topology_core_id(cpu) (cpu_data(cpu)->core_id) #define topology_core_siblings(cpu) (cpu_core_map[cpu]) -#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu]) +#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) #define smt_capable() (smp_num_siblings > 1) #endif diff --git a/include/asm-powerpc/smp.h b/include/asm-powerpc/smp.h index 19102bfc14c..505f35bacaa 100644 --- a/include/asm-powerpc/smp.h +++ b/include/asm-powerpc/smp.h @@ -26,6 +26,7 @@ #ifdef CONFIG_PPC64 #include <asm/paca.h> #endif +#include <asm/percpu.h> extern int boot_cpuid; @@ -58,7 +59,7 @@ extern int smp_hw_index[]; (smp_hw_index[(cpu)] = (phys)) #endif -extern cpumask_t cpu_sibling_map[NR_CPUS]; +DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); /* Since OpenPIC has only 4 IPIs, we use slightly different message numbers. * @@ -77,6 +78,7 @@ void smp_init_pSeries(void); void smp_init_cell(void); void smp_init_celleb(void); void smp_setup_cpu_maps(void); +void smp_setup_cpu_sibling_map(void); extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); diff --git a/include/asm-powerpc/topology.h b/include/asm-powerpc/topology.h index 0ad21a849b5..ca23b681ad0 100644 --- a/include/asm-powerpc/topology.h +++ b/include/asm-powerpc/topology.h @@ -108,7 +108,7 @@ static inline void sysfs_remove_device_from_node(struct sys_device *dev, #ifdef CONFIG_PPC64 #include <asm/smp.h> -#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu]) +#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) #endif #endif diff --git a/include/asm-sparc64/smp.h b/include/asm-sparc64/smp.h index e8a96a31761..42c09949526 100644 --- a/include/asm-sparc64/smp.h +++ b/include/asm-sparc64/smp.h @@ -28,8 +28,9 @@ #include <asm/bitops.h> #include <asm/atomic.h> +#include <asm/percpu.h> -extern cpumask_t cpu_sibling_map[NR_CPUS]; +DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); extern cpumask_t cpu_core_map[NR_CPUS]; extern int sparc64_multi_core; diff --git a/include/asm-sparc64/topology.h b/include/asm-sparc64/topology.h index 290ac75f385..c6b557034f6 100644 --- a/include/asm-sparc64/topology.h +++ b/include/asm-sparc64/topology.h @@ -5,7 +5,7 @@ #define topology_physical_package_id(cpu) (cpu_data(cpu).proc_id) #define topology_core_id(cpu) (cpu_data(cpu).core_id) #define topology_core_siblings(cpu) (cpu_core_map[cpu]) -#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu]) +#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) #define mc_capable() (sparc64_multi_core) #define smt_capable() (sparc64_multi_core) #endif /* CONFIG_SMP */ diff --git a/include/asm-x86/smp_32.h b/include/asm-x86/smp_32.h index 01ab31bb262..955dd7c8538 100644 --- a/include/asm-x86/smp_32.h +++ b/include/asm-x86/smp_32.h @@ -30,7 +30,7 @@ extern void smp_alloc_memory(void); extern int pic_mode; extern int smp_num_siblings; -extern cpumask_t cpu_sibling_map[]; +DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); DECLARE_PER_CPU(cpumask_t, cpu_core_map); extern void (*mtrr_hook) (void); diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h index 65f84486441..f5bcee1c092 100644 --- a/include/asm-x86/smp_64.h +++ b/include/asm-x86/smp_64.h @@ -38,12 +38,14 @@ extern void unlock_ipi_call_lock(void); extern int smp_num_siblings; extern void smp_send_reschedule(int cpu); -extern cpumask_t cpu_sibling_map[NR_CPUS]; /* - * cpu_core_map lives in a per cpu area + * cpu_sibling_map and cpu_core_map now live + * in the per cpu area * + * extern cpumask_t cpu_sibling_map[NR_CPUS]; * extern cpumask_t cpu_core_map[NR_CPUS]; */ +DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); DECLARE_PER_CPU(cpumask_t, cpu_core_map); extern u8 cpu_llc_id[NR_CPUS]; diff --git a/include/asm-x86/topology_32.h b/include/asm-x86/topology_32.h index 7b68dbcd0eb..ae1074603c4 100644 --- a/include/asm-x86/topology_32.h +++ b/include/asm-x86/topology_32.h @@ -31,7 +31,7 @@ #define topology_physical_package_id(cpu) (cpu_data[cpu].phys_proc_id) #define topology_core_id(cpu) (cpu_data[cpu].cpu_core_id) #define topology_core_siblings(cpu) (per_cpu(cpu_core_map, cpu)) -#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu]) +#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) #endif #ifdef CONFIG_NUMA diff --git a/include/asm-x86/topology_64.h b/include/asm-x86/topology_64.h index b8590dff34c..848c17f9222 100644 --- a/include/asm-x86/topology_64.h +++ b/include/asm-x86/topology_64.h @@ -59,7 +59,7 @@ extern int __node_distance(int, int); #define topology_physical_package_id(cpu) (cpu_data[cpu].phys_proc_id) #define topology_core_id(cpu) (cpu_data[cpu].cpu_core_id) #define topology_core_siblings(cpu) (per_cpu(cpu_core_map, cpu)) -#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu]) +#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) #define mc_capable() (boot_cpu_data.x86_max_cores > 1) #define smt_capable() (smp_num_siblings > 1) #endif diff --git a/kernel/sched.c b/kernel/sched.c index bba57adb950..78c8fbd373a 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -5869,7 +5869,7 @@ static int cpu_to_core_group(int cpu, const cpumask_t *cpu_map, struct sched_group **sg) { int group; - cpumask_t mask = cpu_sibling_map[cpu]; + cpumask_t mask = per_cpu(cpu_sibling_map, cpu); cpus_and(mask, mask, *cpu_map); group = first_cpu(mask); if (sg) @@ -5898,7 +5898,7 @@ static int cpu_to_phys_group(int cpu, const cpumask_t *cpu_map, cpus_and(mask, mask, *cpu_map); group = first_cpu(mask); #elif defined(CONFIG_SCHED_SMT) - cpumask_t mask = cpu_sibling_map[cpu]; + cpumask_t mask = per_cpu(cpu_sibling_map, cpu); cpus_and(mask, mask, *cpu_map); group = first_cpu(mask); #else @@ -6132,7 +6132,7 @@ static int build_sched_domains(const cpumask_t *cpu_map) p = sd; sd = &per_cpu(cpu_domains, i); *sd = SD_SIBLING_INIT; - sd->span = cpu_sibling_map[i]; + sd->span = per_cpu(cpu_sibling_map, i); cpus_and(sd->span, sd->span, *cpu_map); sd->parent = p; p->child = sd; @@ -6143,7 +6143,7 @@ static int build_sched_domains(const cpumask_t *cpu_map) #ifdef CONFIG_SCHED_SMT /* Set up CPU (sibling) groups */ for_each_cpu_mask(i, *cpu_map) { - cpumask_t this_sibling_map = cpu_sibling_map[i]; + cpumask_t this_sibling_map = per_cpu(cpu_sibling_map, i); cpus_and(this_sibling_map, this_sibling_map, *cpu_map); if (i != first_cpu(this_sibling_map)) continue; |