84 static void ipi_setup(int cpu);
87 static void ipi_teardown(int cpu);
88 static int op_cpu_kill(unsigned int cpu);
90 static inline int op_cpu_kill(unsigned int cpu)  in op_cpu_kill()  argument
101 static int boot_secondary(unsigned int cpu, struct task_struct *idle)  in boot_secondary()  argument
103 	const struct cpu_operations *ops = get_cpu_ops(cpu);  in boot_secondary()
106 		return ops->cpu_boot(cpu);  in boot_secondary()
113 int __cpu_up(unsigned int cpu, struct task_struct *idle)  in __cpu_up()  argument
128 	ret = boot_secondary(cpu, idle);  in __cpu_up()
130 		pr_err("CPU%u: failed to boot: %d\n", cpu, ret);  in __cpu_up()
140 	if (cpu_online(cpu))  in __cpu_up()
143 	pr_crit("CPU%u: failed to come online\n", cpu);  in __cpu_up()
154 		       cpu, status);  in __cpu_up()
158 		if (!op_cpu_kill(cpu)) {  in __cpu_up()
159 			pr_crit("CPU%u: died during early boot\n", cpu);  in __cpu_up()
162 		pr_crit("CPU%u: may not have shut down cleanly\n", cpu);  in __cpu_up()
165 		pr_crit("CPU%u: is stuck in kernel\n", cpu);  in __cpu_up()
167 			pr_crit("CPU%u: does not support 52-bit VAs\n", cpu);  in __cpu_up()
170 				cpu, PAGE_SIZE / SZ_1K);  in __cpu_up()
175 		panic("CPU%u detected unsupported configuration\n", cpu);  in __cpu_up()
204 	unsigned int cpu;  in secondary_start_kernel()  local
206 	cpu = task_cpu(current);  in secondary_start_kernel()
207 	set_my_cpu_offset(per_cpu_offset(cpu));  in secondary_start_kernel()
225 	rcu_cpu_starting(cpu);  in secondary_start_kernel()
236 	ops = get_cpu_ops(cpu);  in secondary_start_kernel()
248 	notify_cpu_starting(cpu);  in secondary_start_kernel()
250 	ipi_setup(cpu);  in secondary_start_kernel()
252 	store_cpu_topology(cpu);  in secondary_start_kernel()
253 	numa_add_cpu(cpu);  in secondary_start_kernel()
261 					 cpu, (unsigned long)mpidr,  in secondary_start_kernel()
264 	set_cpu_online(cpu, true);  in secondary_start_kernel()
276 static int op_cpu_disable(unsigned int cpu)  in op_cpu_disable()  argument
278 	const struct cpu_operations *ops = get_cpu_ops(cpu);  in op_cpu_disable()
292 		return ops->cpu_disable(cpu);  in op_cpu_disable()
302 	unsigned int cpu = smp_processor_id();  in __cpu_disable()  local
305 	ret = op_cpu_disable(cpu);  in __cpu_disable()
309 	remove_cpu_topology(cpu);  in __cpu_disable()
310 	numa_remove_cpu(cpu);  in __cpu_disable()
316 	set_cpu_online(cpu, false);  in __cpu_disable()
317 	ipi_teardown(cpu);  in __cpu_disable()
327 static int op_cpu_kill(unsigned int cpu)  in op_cpu_kill()  argument
329 	const struct cpu_operations *ops = get_cpu_ops(cpu);  in op_cpu_kill()
339 	return ops->cpu_kill(cpu);  in op_cpu_kill()
346 void __cpu_die(unsigned int cpu)  in __cpu_die()  argument
350 	if (!cpu_wait_death(cpu, 5)) {  in __cpu_die()
351 		pr_crit("CPU%u: cpu didn't die\n", cpu);  in __cpu_die()
354 	pr_notice("CPU%u: shutdown\n", cpu);  in __cpu_die()
362 	err = op_cpu_kill(cpu);  in __cpu_die()
364 		pr_warn("CPU%d may not have shut down cleanly: %d\n", cpu, err);  in __cpu_die()
373 	unsigned int cpu = smp_processor_id();  in cpu_die()  local
374 	const struct cpu_operations *ops = get_cpu_ops(cpu);  in cpu_die()
388 	ops->cpu_die(cpu);  in cpu_die()
394 static void __cpu_try_die(int cpu)  in __cpu_try_die()  argument
397 	const struct cpu_operations *ops = get_cpu_ops(cpu);  in __cpu_try_die()
400 		ops->cpu_die(cpu);  in __cpu_try_die()
410 	int cpu = smp_processor_id();  in cpu_die_early()  local
412 	pr_crit("CPU%d: will not boot\n", cpu);  in cpu_die_early()
415 	set_cpu_present(cpu, 0);  in cpu_die_early()
416 	rcu_report_dead(cpu);  in cpu_die_early()
420 		__cpu_try_die(cpu);  in cpu_die_early()
500 static bool __init is_mpidr_duplicate(unsigned int cpu, u64 hwid)  in is_mpidr_duplicate()  argument
504 	for (i = 1; (i < cpu) && (i < NR_CPUS); i++)  in is_mpidr_duplicate()
514 static int __init smp_cpu_setup(int cpu)  in smp_cpu_setup()  argument
518 	if (init_cpu_ops(cpu))  in smp_cpu_setup()
521 	ops = get_cpu_ops(cpu);  in smp_cpu_setup()
522 	if (ops->cpu_init(cpu))  in smp_cpu_setup()
525 	set_cpu_possible(cpu, true);  in smp_cpu_setup()
536 struct acpi_madt_generic_interrupt *acpi_cpu_get_madt_gicc(int cpu)  in acpi_cpu_get_madt_gicc()  argument
538 	return &cpu_madt_gicc[cpu];  in acpi_cpu_get_madt_gicc()
747 	unsigned int cpu;  in smp_prepare_cpus()  local
769 	for_each_possible_cpu(cpu) {  in smp_prepare_cpus()
771 		per_cpu(cpu_number, cpu) = cpu;  in smp_prepare_cpus()
773 		if (cpu == smp_processor_id())  in smp_prepare_cpus()
776 		ops = get_cpu_ops(cpu);  in smp_prepare_cpus()
780 		err = ops->cpu_prepare(cpu);  in smp_prepare_cpus()
784 		set_cpu_present(cpu, true);  in smp_prepare_cpus()
785 		numa_store_cpu_info(cpu);  in smp_prepare_cpus()
806 	unsigned int cpu, i;  in arch_show_interrupts()  local
812 		for_each_online_cpu(cpu)  in arch_show_interrupts()
813 			seq_printf(p, "%10u ", kstat_irqs_cpu(irq, cpu));  in arch_show_interrupts()
826 void arch_send_call_function_single_ipi(int cpu)  in arch_send_call_function_single_ipi()  argument
828 	smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC);  in arch_send_call_function_single_ipi()
868 static void ipi_cpu_crash_stop(unsigned int cpu, struct pt_regs *regs)  in ipi_cpu_crash_stop()  argument
871 	crash_save_cpu(regs, cpu);  in ipi_cpu_crash_stop()
879 		__cpu_try_die(cpu);  in ipi_cpu_crash_stop()
891 	unsigned int cpu = smp_processor_id();  in do_handle_IPI()  local
911 			ipi_cpu_crash_stop(cpu, get_irq_regs());  in do_handle_IPI()
931 		WARN_ONCE(!acpi_parking_protocol_valid(cpu),  in do_handle_IPI()
933 			  cpu);  in do_handle_IPI()
938 		pr_crit("CPU%u: Unknown IPI message 0x%x\n", cpu, ipinr);  in do_handle_IPI()
958 static void ipi_setup(int cpu)  in ipi_setup()  argument
970 static void ipi_teardown(int cpu)  in ipi_teardown()  argument
1006 void smp_send_reschedule(int cpu)  in smp_send_reschedule()  argument
1008 	smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);  in smp_send_reschedule()