| /* |
| * SMP stuff which is common to all sub-architectures. |
| */ |
| #include <linux/module.h> |
| #include <asm/smp.h> |
| |
| DEFINE_PER_CPU(unsigned long, this_cpu_off); |
| EXPORT_PER_CPU_SYMBOL(this_cpu_off); |
| |
| #ifdef CONFIG_X86_32 |
| /* |
| * Initialize the CPU's GDT. This is either the boot CPU doing itself |
| * (still using the master per-cpu area), or a CPU doing it for a |
| * secondary which will soon come up. |
| */ |
| __cpuinit void init_gdt(int cpu) |
| { |
| struct desc_struct gdt; |
| |
| pack_descriptor(&gdt, __per_cpu_offset[cpu], 0xFFFFF, |
| 0x2 | DESCTYPE_S, 0x8); |
| gdt.s = 1; |
| |
| write_gdt_entry(get_cpu_gdt_table(cpu), |
| GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); |
| |
| per_cpu(cpu_number, cpu) = cpu; |
| } |
| #endif |
