static int __init topology_init(void)
{
int i;
for_each_present_cpu(i)
arch_register_cpu(i);
return 0;
}
static int __init topology_init(void)
{
int cpu;
for_each_present_cpu(cpu)
register_cpu(&per_cpu(cpu_topology, cpu), cpu);
return 0;
}
static int __init topology_init(void)
{
int i;
for_each_present_cpu(i)
register_cpu(&cpu_devices[i], i);
return 0;
}
/*
* Display interrupt management information through /proc/interrupts
*/
int show_interrupts(struct seq_file *p, void *v)
{
int i = *(loff_t *) v, j, cpu;
struct irqaction *action;
unsigned long flags;
switch (i) {
/* display column title bar naming CPUs */
case 0:
seq_printf(p, " ");
for (j = 0; j < NR_CPUS; j++)
if (cpu_online(j))
seq_printf(p, "CPU%d ", j);
seq_putc(p, '\n');
break;
/* display information rows, one per active CPU */
case 1 ... NR_IRQS - 1:
spin_lock_irqsave(&irq_desc[i].lock, flags);
action = irq_desc[i].action;
if (action) {
seq_printf(p, "%3d: ", i);
for_each_present_cpu(cpu)
seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu));
seq_printf(p, " %14s.%u", irq_desc[i].chip->name,
(GxICR(i) & GxICR_LEVEL) >>
GxICR_LEVEL_SHIFT);
seq_printf(p, " %s", action->name);
for (action = action->next;
action;
action = action->next)
seq_printf(p, ", %s", action->name);
seq_putc(p, '\n');
}
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
break;
/* polish off with NMI and error counters */
case NR_IRQS:
seq_printf(p, "NMI: ");
for (j = 0; j < NR_CPUS; j++)
if (cpu_online(j))
seq_printf(p, "%10u ", nmi_count(j));
seq_putc(p, '\n');
seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
break;
}
return 0;
}
void show_ipi_list(struct seq_file *p, int prec)
{
unsigned int cpu, i;
for (i = 0; i < NR_IPI; i++) {
seq_printf(p, "%*s%u:%s", prec - 1, "IPI", i,
prec >= 4 ? " " : "");
for_each_present_cpu(cpu)
seq_printf(p, "%10u ",
__get_irq_stat(cpu, ipi_irqs[i]));
seq_printf(p, " %s\n", ipi_types[i]);
}
}
static int __init topology_init(void)
{
int i;
#ifdef CONFIG_NUMA
for_each_online_node(i)
register_one_node(i);
#endif /* CONFIG_NUMA */
for_each_present_cpu(i)
arch_register_cpu(i);
return 0;
}
void touch_nmi_watchdog (void)
{
if (nmi_watchdog > 0) {
unsigned cpu;
/*
* Tell other CPUs to reset their alert counters. We cannot
* do it ourselves because the alert count increase is not
* atomic.
*/
for_each_present_cpu (cpu)
per_cpu(nmi_touch, cpu) = 1;
}
touch_softlockup_watchdog();
}
static int gator_events_block_start(void)
{
int cpu;
for_each_present_cpu(cpu)
per_cpu(new_data_avail, cpu) = true;
// register tracepoints
if (block_rq_wr_enabled || block_rq_rd_enabled)
if (GATOR_REGISTER_TRACE(block_rq_complete))
goto fail_block_rq_exit;
pr_debug("gator: registered block event tracepoints\n");
return 0;
// unregister tracepoints on error
fail_block_rq_exit:
pr_err("gator: block event tracepoints failed to activate, please verify that tracepoints are enabled in the linux kernel\n");
return -1;
}
int bpmp_init_irq(void)
{
long ch;
int r;
int i;
for (i = 0; i < ARRAY_SIZE(cpu_irqs); i++) {
ch = PER_CPU_IB_CH(i);
r = request_irq(cpu_irqs[i], bpmp_inbox_irq,
0, "bpmp", (void *)ch);
if (r)
return r;
}
r = register_cpu_notifier(&bpmp_cpu_nb);
if (r)
return r;
for_each_present_cpu(i)
bpmp_irq_set_affinity(i);
return 0;
}
