diff options
| -rw-r--r-- | arch/x86/kernel/genapic_64.c | 11 | ||||
| -rw-r--r-- | arch/x86/kernel/mpparse_64.c | 11 | ||||
| -rw-r--r-- | arch/x86/kernel/setup_64.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/smpboot_32.c | 9 | ||||
| -rw-r--r-- | arch/x86/kernel/smpboot_64.c | 16 | ||||
| -rw-r--r-- | include/asm-x86/smp_32.h | 2 | ||||
| -rw-r--r-- | include/asm-x86/smp_64.h | 2 |
7 files changed, 19 insertions, 34 deletions
diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c index ac2b78f2407..4ae7b644026 100644 --- a/arch/x86/kernel/genapic_64.c +++ b/arch/x86/kernel/genapic_64.c @@ -24,17 +24,10 @@ #include <acpi/acpi_bus.h> #endif -/* - * which logical CPU number maps to which CPU (physical APIC ID) - * - * The following static array is used during kernel startup - * and the x86_cpu_to_apicid_ptr contains the address of the - * array during this time. Is it zeroed when the per_cpu - * data area is removed. - */ +/* which logical CPU number maps to which CPU (physical APIC ID) */ u16 x86_cpu_to_apicid_init[NR_CPUS] __initdata = { [0 ... NR_CPUS-1] = BAD_APICID }; -void *x86_cpu_to_apicid_ptr; +void *x86_cpu_to_apicid_early_ptr; DEFINE_PER_CPU(u16, x86_cpu_to_apicid) = BAD_APICID; EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid); diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c index 17d21e5b22d..528ad9696d9 100644 --- a/arch/x86/kernel/mpparse_64.c +++ b/arch/x86/kernel/mpparse_64.c @@ -125,14 +125,9 @@ static void __cpuinit MP_processor_info(struct mpc_config_processor *m) cpu = 0; } bios_cpu_apicid[cpu] = m->mpc_apicid; - /* - * We get called early in the the start_kernel initialization - * process when the per_cpu data area is not yet setup, so we - * use a static array that is removed after the per_cpu data - * area is created. - */ - if (x86_cpu_to_apicid_ptr) { - u16 *x86_cpu_to_apicid = (u16 *)x86_cpu_to_apicid_ptr; + /* are we being called early in kernel startup? */ + if (x86_cpu_to_apicid_early_ptr) { + u16 *x86_cpu_to_apicid = (u16 *)x86_cpu_to_apicid_early_ptr; x86_cpu_to_apicid[cpu] = m->mpc_apicid; } else { per_cpu(x86_cpu_to_apicid, cpu) = m->mpc_apicid; diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index 12bad27d66f..e2beb4cba15 100644 --- a/arch/x86/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c @@ -360,7 +360,7 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_SMP /* setup to use the static apicid table during kernel startup */ - x86_cpu_to_apicid_ptr = (void *)&x86_cpu_to_apicid_init; + x86_cpu_to_apicid_early_ptr = (void *)&x86_cpu_to_apicid_init; #endif #ifdef CONFIG_ACPI diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c index 2034332ad08..915ec626732 100644 --- a/arch/x86/kernel/smpboot_32.c +++ b/arch/x86/kernel/smpboot_32.c @@ -91,15 +91,10 @@ static cpumask_t smp_commenced_mask; DEFINE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info); EXPORT_PER_CPU_SYMBOL(cpu_info); -/* - * The following static array is used during kernel startup - * and the x86_cpu_to_apicid_ptr contains the address of the - * array during this time. Is it zeroed when the per_cpu - * data area is removed. - */ +/* which logical CPU number maps to which CPU (physical APIC ID) */ u8 x86_cpu_to_apicid_init[NR_CPUS] __initdata = { [0 ... NR_CPUS-1] = BAD_APICID }; -void *x86_cpu_to_apicid_ptr; +void *x86_cpu_to_apicid_early_ptr; DEFINE_PER_CPU(u8, x86_cpu_to_apicid) = BAD_APICID; EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid); diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c index 50e207a8261..a2076b5f12a 100644 --- a/arch/x86/kernel/smpboot_64.c +++ b/arch/x86/kernel/smpboot_64.c @@ -852,23 +852,25 @@ static int __init smp_sanity_check(unsigned max_cpus) } /* - * Copy apicid's found by MP_processor_info from initial array to the per cpu - * data area. The x86_cpu_to_apicid_init array is then expendable and the - * x86_cpu_to_apicid_ptr is zeroed indicating that the static array is no - * longer available. + * Copy data used in early init routines from the initial arrays to the + * per cpu data areas. These arrays then become expendable and the + * *_ptrs are zeroed indicating that the static arrays are gone. */ void __init smp_set_apicids(void) { int cpu; - for_each_cpu_mask(cpu, cpu_possible_map) { + for_each_possible_cpu(cpu) { if (per_cpu_offset(cpu)) per_cpu(x86_cpu_to_apicid, cpu) = x86_cpu_to_apicid_init[cpu]; + else + printk(KERN_NOTICE "per_cpu_offset zero for cpu %d\n", + cpu); } - /* indicate the static array will be going away soon */ - x86_cpu_to_apicid_ptr = NULL; + /* indicate the early static arrays are gone */ + x86_cpu_to_apicid_early_ptr = NULL; } static void __init smp_cpu_index_default(void) diff --git a/include/asm-x86/smp_32.h b/include/asm-x86/smp_32.h index c69e960429c..56152e31228 100644 --- a/include/asm-x86/smp_32.h +++ b/include/asm-x86/smp_32.h @@ -30,7 +30,7 @@ extern void (*mtrr_hook) (void); extern void zap_low_mappings (void); extern u8 __initdata x86_cpu_to_apicid_init[]; -extern void *x86_cpu_to_apicid_ptr; +extern void *x86_cpu_to_apicid_early_ptr; DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); DECLARE_PER_CPU(cpumask_t, cpu_core_map); diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h index b1d5381aa76..6fa332db29c 100644 --- a/include/asm-x86/smp_64.h +++ b/include/asm-x86/smp_64.h @@ -27,7 +27,7 @@ extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *), void *info, int wait); extern u16 __initdata x86_cpu_to_apicid_init[]; -extern void *x86_cpu_to_apicid_ptr; +extern void *x86_cpu_to_apicid_early_ptr; extern u16 bios_cpu_apicid[]; DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); |