Пример #1
0
void __devinit smp_prepare_boot_cpu(void)
{
	set_cpu_online(smp_processor_id(), true);
	cpu_set(smp_processor_id(), cpu_callin_map);
	set_numa_node(cpu_to_node_map[smp_processor_id()]);
	per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
	paravirt_post_smp_prepare_boot_cpu();
}
Пример #2
0
void smp_prepare_boot_cpu(void)
{
	BUG_ON(smp_processor_id() != boot_cpuid);
#ifdef CONFIG_PPC64
	paca[boot_cpuid].__current = current;
#endif
	set_numa_node(numa_cpu_lookup_table[boot_cpuid]);
	current_set[boot_cpuid] = task_thread_info(current);
}
Пример #3
0
static void __cpuinit
smp_callin (void)
{
	int cpuid, phys_id, itc_master;
	struct cpuinfo_ia64 *last_cpuinfo, *this_cpuinfo;
	extern void ia64_init_itm(void);
	extern volatile int time_keeper_id;

#ifdef CONFIG_PERFMON
	extern void pfm_init_percpu(void);
#endif

	cpuid = smp_processor_id();
	phys_id = hard_smp_processor_id();
	itc_master = time_keeper_id;

	if (cpu_online(cpuid)) {
		printk(KERN_ERR "huh, phys CPU#0x%x, CPU#0x%x already present??\n",
		       phys_id, cpuid);
		BUG();
	}

	fix_b0_for_bsp();

	/*
	 * numa_node_id() works after this.
	 */
	set_numa_node(cpu_to_node_map[cpuid]);
	set_numa_mem(local_memory_node(cpu_to_node_map[cpuid]));

	ipi_call_lock_irq();
	spin_lock(&vector_lock);
	/* Setup the per cpu irq handling data structures */
	__setup_vector_irq(cpuid);
	notify_cpu_starting(cpuid);
	set_cpu_online(cpuid, true);
	per_cpu(cpu_state, cpuid) = CPU_ONLINE;
	spin_unlock(&vector_lock);
	ipi_call_unlock_irq();

	smp_setup_percpu_timer();

	ia64_mca_cmc_vector_setup();	/* Setup vector on AP */

#ifdef CONFIG_PERFMON
	pfm_init_percpu();
#endif

	local_irq_enable();

	if (!(sal_platform_features & IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT)) {
		/*
		 * Synchronize the ITC with the BP.  Need to do this after irqs are
		 * enabled because ia64_sync_itc() calls smp_call_function_single(), which
		 * calls spin_unlock_bh(), which calls spin_unlock_bh(), which calls
		 * local_bh_enable(), which bugs out if irqs are not enabled...
		 */
		Dprintk("Going to syncup ITC with ITC Master.\n");
		ia64_sync_itc(itc_master);
	}

	/*
	 * Get our bogomips.
	 */
	ia64_init_itm();

	/*
	 * Delay calibration can be skipped if new processor is identical to the
	 * previous processor.
	 */
	last_cpuinfo = cpu_data(cpuid - 1);
	this_cpuinfo = local_cpu_data;
	if (last_cpuinfo->itc_freq != this_cpuinfo->itc_freq ||
	    last_cpuinfo->proc_freq != this_cpuinfo->proc_freq ||
	    last_cpuinfo->features != this_cpuinfo->features ||
	    last_cpuinfo->revision != this_cpuinfo->revision ||
	    last_cpuinfo->family != this_cpuinfo->family ||
	    last_cpuinfo->archrev != this_cpuinfo->archrev ||
	    last_cpuinfo->model != this_cpuinfo->model)
		calibrate_delay();
	local_cpu_data->loops_per_jiffy = loops_per_jiffy;

	/*
	 * Allow the master to continue.
	 */
	cpu_set(cpuid, cpu_callin_map);
	Dprintk("Stack on CPU %d at about %p\n",cpuid, &cpuid);
}