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| author |   Ingo Molnar <mingo@elte.hu> | 2009-01-27 12:03:24 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-27 12:03:24 +0100 |
| commit | 4369f1fb7cd4cf777312f43e1cb9aa5504fc4125 (patch) | |
| tree | a5525d63fe682e6744c109fb72f7e1b33855cb00 /arch/x86/kernel/cpu/common.c | |
| parent | Merge branch 'linus' into core/percpu (diff) | |
| parent | x86: clean up indentation in setup_per_cpu_areas() (diff) | |
| download | linux-dev-4369f1fb7cd4cf777312f43e1cb9aa5504fc4125.tar.xz linux-dev-4369f1fb7cd4cf777312f43e1cb9aa5504fc4125.zip | |
Merge branch 'tj-percpu' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/percpu
Conflicts:
arch/x86/kernel/setup_percpu.c
Semantic conflict:
arch/x86/kernel/cpu/common.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 99904f288d6a..652fdc9a757a 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -52,6 +52,15 @@ cpumask_var_t cpu_initialized_mask; /* representing cpus for which sibling maps can be computed */ cpumask_var_t cpu_sibling_setup_mask; +/* correctly size the local cpu masks */ +void __init setup_cpu_local_masks(void) +{ + alloc_bootmem_cpumask_var(&cpu_initialized_mask); + alloc_bootmem_cpumask_var(&cpu_callin_mask); + alloc_bootmem_cpumask_var(&cpu_callout_mask); + alloc_bootmem_cpumask_var(&cpu_sibling_setup_mask); +} + #else /* CONFIG_X86_32 */ cpumask_t cpu_callin_map; @@ -249,12 +258,17 @@ __u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata; void switch_to_new_gdt(void) { struct desc_ptr gdt_descr; + int cpu = smp_processor_id(); - gdt_descr.address = (long)get_cpu_gdt_table(smp_processor_id()); + gdt_descr.address = (long)get_cpu_gdt_table(cpu); gdt_descr.size = GDT_SIZE - 1; load_gdt(&gdt_descr); + /* Reload the per-cpu base */ #ifdef CONFIG_X86_32 - asm("mov %0, %%fs" : : "r" (__KERNEL_PERCPU) : "memory"); + loadsegment(fs, __KERNEL_PERCPU); +#else + loadsegment(gs, 0); + wrmsrl(MSR_GS_BASE, (unsigned long)per_cpu(irq_stack_union.gs_base, cpu)); #endif } @@ -959,10 +973,6 @@ void __cpuinit cpu_init(void) struct task_struct *me; int i; - loadsegment(fs, 0); - loadsegment(gs, 0); - load_gs_base(cpu); - #ifdef CONFIG_NUMA if (cpu != 0 && percpu_read(node_number) == 0 && cpu_to_node(cpu) != NUMA_NO_NODE) @@ -984,6 +994,8 @@ void __cpuinit cpu_init(void) */ switch_to_new_gdt(); + loadsegment(fs, 0); + load_idt((const struct desc_ptr *)&idt_descr); memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8); |