245 	int cpu;  in kgdb_roundup_cpus()  local
248 	for_each_online_cpu(cpu) {  in kgdb_roundup_cpus()
250 		if (cpu == this_cpu)  in kgdb_roundup_cpus()
253 		csd = &per_cpu(kgdb_roundup_csd, cpu);  in kgdb_roundup_cpus()
263 		if (kgdb_info[cpu].rounding_up)  in kgdb_roundup_cpus()
265 		kgdb_info[cpu].rounding_up = true;  in kgdb_roundup_cpus()
267 		ret = smp_call_function_single_async(cpu, csd);  in kgdb_roundup_cpus()
269 			kgdb_info[cpu].rounding_up = false;  in kgdb_roundup_cpus()
456 void kdb_dump_stack_on_cpu(int cpu)  in kdb_dump_stack_on_cpu()  argument
458 	if (cpu == raw_smp_processor_id() || !IS_ENABLED(CONFIG_SMP)) {  in kdb_dump_stack_on_cpu()
463 	if (!(kgdb_info[cpu].exception_state & DCPU_IS_SLAVE)) {  in kdb_dump_stack_on_cpu()
465 			   cpu);  in kdb_dump_stack_on_cpu()
480 	kgdb_info[cpu].exception_state |= DCPU_WANT_BT;  in kdb_dump_stack_on_cpu()
481 	while (kgdb_info[cpu].exception_state & DCPU_WANT_BT)  in kdb_dump_stack_on_cpu()
577 	int cpu;  in kgdb_cpu_enter()  local
582 	kgdb_info[ks->cpu].enter_kgdb++;  in kgdb_cpu_enter()
583 	kgdb_info[ks->cpu].exception_state |= exception_state;  in kgdb_cpu_enter()
601 	cpu = ks->cpu;  in kgdb_cpu_enter()
602 	kgdb_info[cpu].debuggerinfo = regs;  in kgdb_cpu_enter()
603 	kgdb_info[cpu].task = current;  in kgdb_cpu_enter()
604 	kgdb_info[cpu].ret_state = 0;  in kgdb_cpu_enter()
605 	kgdb_info[cpu].irq_depth = hardirq_count() >> HARDIRQ_SHIFT;  in kgdb_cpu_enter()
612 			atomic_xchg(&kgdb_active, cpu);  in kgdb_cpu_enter()
622 		if (kgdb_info[cpu].exception_state & DCPU_NEXT_MASTER) {  in kgdb_cpu_enter()
623 			kgdb_info[cpu].exception_state &= ~DCPU_NEXT_MASTER;  in kgdb_cpu_enter()
625 		} else if (kgdb_info[cpu].exception_state & DCPU_WANT_MASTER) {  in kgdb_cpu_enter()
627 				atomic_xchg(&kgdb_active, cpu);  in kgdb_cpu_enter()
630 		} else if (kgdb_info[cpu].exception_state & DCPU_WANT_BT) {  in kgdb_cpu_enter()
632 			kgdb_info[cpu].exception_state &= ~DCPU_WANT_BT;  in kgdb_cpu_enter()
633 		} else if (kgdb_info[cpu].exception_state & DCPU_IS_SLAVE) {  in kgdb_cpu_enter()
645 			kgdb_info[cpu].debuggerinfo = NULL;  in kgdb_cpu_enter()
646 			kgdb_info[cpu].task = NULL;  in kgdb_cpu_enter()
647 			kgdb_info[cpu].exception_state &=  in kgdb_cpu_enter()
649 			kgdb_info[cpu].enter_kgdb--;  in kgdb_cpu_enter()
667 	    (kgdb_info[cpu].task &&  in kgdb_cpu_enter()
668 	     kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) {  in kgdb_cpu_enter()
679 		kgdb_info[cpu].ret_state = 1;  in kgdb_cpu_enter()
777 			kgdb_info[cpu].ret_state = error;  in kgdb_cpu_enter()
810 	kgdb_info[cpu].debuggerinfo = NULL;  in kgdb_cpu_enter()
811 	kgdb_info[cpu].task = NULL;  in kgdb_cpu_enter()
812 	kgdb_info[cpu].exception_state &=  in kgdb_cpu_enter()
814 	kgdb_info[cpu].enter_kgdb--;  in kgdb_cpu_enter()
824 	return kgdb_info[cpu].ret_state;  in kgdb_cpu_enter()
854 	ks->cpu			= raw_smp_processor_id();  in kgdb_handle_exception()
862 	if (kgdb_info[ks->cpu].enter_kgdb != 0)  in kgdb_handle_exception()
886 int kgdb_nmicallback(int cpu, void *regs)  in kgdb_nmicallback()  argument
892 	kgdb_info[cpu].rounding_up = false;  in kgdb_nmicallback()
895 	ks->cpu			= cpu;  in kgdb_nmicallback()
898 	if (kgdb_info[ks->cpu].enter_kgdb == 0 &&  in kgdb_nmicallback()
908 int kgdb_nmicallin(int cpu, int trapnr, void *regs, int err_code,  in kgdb_nmicallin()  argument
915 	if (kgdb_info[cpu].enter_kgdb == 0) {  in kgdb_nmicallin()
920 		ks->cpu			= cpu;  in kgdb_nmicallin()