/*
* We have no quick way of doing reverse lookups. This is only used at
* queue init time, so runtime isn't important.
*/
int blk_mq_hw_queue_to_node(struct blk_mq_queue_map *qmap, unsigned int index)
{
int i;
for_each_possible_cpu(i) {
if (index == qmap->mq_map[i])
return local_memory_node(cpu_to_node(i));
}
return NUMA_NO_NODE;
}
void __init smp_prepare_cpus(unsigned int max_cpus)
{
unsigned int cpu;
DBG("smp_prepare_cpus\n");
/*
* setup_cpu may need to be called on the boot cpu. We havent
* spun any cpus up but lets be paranoid.
*/
BUG_ON(boot_cpuid != smp_processor_id());
/* Fixup boot cpu */
smp_store_cpu_info(boot_cpuid);
cpu_callin_map[boot_cpuid] = 1;
for_each_possible_cpu(cpu) {
zalloc_cpumask_var_node(&per_cpu(cpu_sibling_map, cpu),
GFP_KERNEL, cpu_to_node(cpu));
zalloc_cpumask_var_node(&per_cpu(cpu_core_map, cpu),
GFP_KERNEL, cpu_to_node(cpu));
/*
* numa_node_id() works after this.
*/
if (cpu_present(cpu)) {
set_cpu_numa_node(cpu, numa_cpu_lookup_table[cpu]);
set_cpu_numa_mem(cpu,
local_memory_node(numa_cpu_lookup_table[cpu]));
}
}
cpumask_set_cpu(boot_cpuid, cpu_sibling_mask(boot_cpuid));
cpumask_set_cpu(boot_cpuid, cpu_core_mask(boot_cpuid));
if (smp_ops && smp_ops->probe)
smp_ops->probe();
}
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);
}
