35 static void stop_irqsoff_tracer(struct trace_array *tr, int graph);
36 static int start_irqsoff_tracer(struct trace_array *tr, int graph);
60 static int irqsoff_display_graph(struct trace_array *tr, int set);
61 # define is_graph(tr) ((tr)->trace_flags & TRACE_ITER_DISPLAY_GRAPH)  argument
63 static inline int irqsoff_display_graph(struct trace_array *tr, int set)  in irqsoff_display_graph()  argument
67 # define is_graph(tr) false  argument
94 static int func_prolog_dec(struct trace_array *tr,  in func_prolog_dec()  argument
120 	*data = per_cpu_ptr(tr->trace_buffer.data, cpu);  in func_prolog_dec()
138 	struct trace_array *tr = irqsoff_trace;  in irqsoff_tracer_call()  local
142 	if (!func_prolog_dec(tr, &data, &flags))  in irqsoff_tracer_call()
145 	trace_function(tr, ip, parent_ip, flags, preempt_count());  in irqsoff_tracer_call()
152 static int irqsoff_display_graph(struct trace_array *tr, int set)  in irqsoff_display_graph()  argument
156 	if (!(is_graph(tr) ^ set))  in irqsoff_display_graph()
164 	tr->max_latency = 0;  in irqsoff_display_graph()
172 	struct trace_array *tr = irqsoff_trace;  in irqsoff_graph_entry()  local
178 	if (!func_prolog_dec(tr, &data, &flags))  in irqsoff_graph_entry()
182 	ret = __trace_graph_entry(tr, trace, flags, pc);  in irqsoff_graph_entry()
190 	struct trace_array *tr = irqsoff_trace;  in irqsoff_graph_return()  local
195 	if (!func_prolog_dec(tr, &data, &flags))  in irqsoff_graph_return()
199 	__trace_graph_return(tr, trace, flags, pc);  in irqsoff_graph_return()
205 	if (is_graph(iter->tr))  in irqsoff_trace_open()
227 	if (is_graph(iter->tr))  in irqsoff_print_line()
235 	struct trace_array *tr = irqsoff_trace;  in irqsoff_print_header()  local
237 	if (is_graph(tr))  in irqsoff_print_header()
244 __trace_function(struct trace_array *tr,  in __trace_function()  argument
248 	if (is_graph(tr))  in __trace_function()
249 		trace_graph_function(tr, ip, parent_ip, flags, pc);  in __trace_function()
251 		trace_function(tr, ip, parent_ip, flags, pc);  in __trace_function()
289 static bool report_latency(struct trace_array *tr, cycle_t delta)  in report_latency()  argument
295 		if (delta <= tr->max_latency)  in report_latency()
302 check_critical_timing(struct trace_array *tr,  in check_critical_timing()  argument
319 	if (!report_latency(tr, delta))  in check_critical_timing()
325 	if (!report_latency(tr, delta))  in check_critical_timing()
328 	__trace_function(tr, CALLER_ADDR0, parent_ip, flags, pc);  in check_critical_timing()
330 	__trace_stack(tr, flags, 5, pc);  in check_critical_timing()
338 		tr->max_latency = delta;  in check_critical_timing()
339 		update_max_tr_single(tr, current, cpu);  in check_critical_timing()
350 	__trace_function(tr, CALLER_ADDR0, parent_ip, flags, pc);  in check_critical_timing()
357 	struct trace_array *tr = irqsoff_trace;  in start_critical_timing()  local
369 	data = per_cpu_ptr(tr->trace_buffer.data, cpu);  in start_critical_timing()
382 	__trace_function(tr, ip, parent_ip, flags, preempt_count());  in start_critical_timing()
393 	struct trace_array *tr = irqsoff_trace;  in stop_critical_timing()  local
407 	data = per_cpu_ptr(tr->trace_buffer.data, cpu);  in stop_critical_timing()
416 	__trace_function(tr, ip, parent_ip, flags, preempt_count());  in stop_critical_timing()
417 	check_critical_timing(tr, data, parent_ip ? : ip, cpu);  in stop_critical_timing()
520 static int register_irqsoff_function(struct trace_array *tr, int graph, int set)  in register_irqsoff_function()  argument
525 	if (function_enabled || (!set && !(tr->trace_flags & TRACE_ITER_FUNCTION)))  in register_irqsoff_function()
532 		ret = register_ftrace_function(tr->ops);  in register_irqsoff_function()
540 static void unregister_irqsoff_function(struct trace_array *tr, int graph)  in unregister_irqsoff_function()  argument
548 		unregister_ftrace_function(tr->ops);  in unregister_irqsoff_function()
553 static int irqsoff_function_set(struct trace_array *tr, u32 mask, int set)  in irqsoff_function_set()  argument
559 		register_irqsoff_function(tr, is_graph(tr), 1);  in irqsoff_function_set()
561 		unregister_irqsoff_function(tr, is_graph(tr));  in irqsoff_function_set()
565 static int register_irqsoff_function(struct trace_array *tr, int graph, int set)  in register_irqsoff_function()  argument
569 static void unregister_irqsoff_function(struct trace_array *tr, int graph) { }  in unregister_irqsoff_function()  argument
570 static inline int irqsoff_function_set(struct trace_array *tr, u32 mask, int set)  in irqsoff_function_set()  argument
576 static int irqsoff_flag_changed(struct trace_array *tr, u32 mask, int set)  in irqsoff_flag_changed()  argument
578 	struct tracer *tracer = tr->current_trace;  in irqsoff_flag_changed()
580 	if (irqsoff_function_set(tr, mask, set))  in irqsoff_flag_changed()
585 		return irqsoff_display_graph(tr, set);  in irqsoff_flag_changed()
591 static int start_irqsoff_tracer(struct trace_array *tr, int graph)  in start_irqsoff_tracer()  argument
595 	ret = register_irqsoff_function(tr, graph, 0);  in start_irqsoff_tracer()
605 static void stop_irqsoff_tracer(struct trace_array *tr, int graph)  in stop_irqsoff_tracer()  argument
609 	unregister_irqsoff_function(tr, graph);  in stop_irqsoff_tracer()
614 static int __irqsoff_tracer_init(struct trace_array *tr)  in __irqsoff_tracer_init()  argument
619 	save_flags = tr->trace_flags;  in __irqsoff_tracer_init()
622 	set_tracer_flag(tr, TRACE_ITER_OVERWRITE, 1);  in __irqsoff_tracer_init()
623 	set_tracer_flag(tr, TRACE_ITER_LATENCY_FMT, 1);  in __irqsoff_tracer_init()
625 	tr->max_latency = 0;  in __irqsoff_tracer_init()
626 	irqsoff_trace = tr;  in __irqsoff_tracer_init()
629 	tracing_reset_online_cpus(&tr->trace_buffer);  in __irqsoff_tracer_init()
631 	ftrace_init_array_ops(tr, irqsoff_tracer_call);  in __irqsoff_tracer_init()
634 	if (start_irqsoff_tracer(tr, (tr->flags & TRACE_ARRAY_FL_GLOBAL &&  in __irqsoff_tracer_init()
635 				      is_graph(tr))))  in __irqsoff_tracer_init()
642 static void irqsoff_tracer_reset(struct trace_array *tr)  in irqsoff_tracer_reset()  argument
647 	stop_irqsoff_tracer(tr, is_graph(tr));  in irqsoff_tracer_reset()
649 	set_tracer_flag(tr, TRACE_ITER_LATENCY_FMT, lat_flag);  in irqsoff_tracer_reset()
650 	set_tracer_flag(tr, TRACE_ITER_OVERWRITE, overwrite_flag);  in irqsoff_tracer_reset()
651 	ftrace_reset_array_ops(tr);  in irqsoff_tracer_reset()
656 static void irqsoff_tracer_start(struct trace_array *tr)  in irqsoff_tracer_start()  argument
661 static void irqsoff_tracer_stop(struct trace_array *tr)  in irqsoff_tracer_stop()  argument
667 static int irqsoff_tracer_init(struct trace_array *tr)  in irqsoff_tracer_init()  argument
671 	return __irqsoff_tracer_init(tr);  in irqsoff_tracer_init()
698 static int preemptoff_tracer_init(struct trace_array *tr)  in preemptoff_tracer_init()  argument
702 	return __irqsoff_tracer_init(tr);  in preemptoff_tracer_init()
732 static int preemptirqsoff_tracer_init(struct trace_array *tr)  in preemptirqsoff_tracer_init()  argument
736 	return __irqsoff_tracer_init(tr);  in preemptirqsoff_tracer_init()