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	 614384533d
			
		
	
	
		614384533d
		
	
	
	
	
		
			
			Add a per-cpu monitor as part of the sched model:
* opid: operations with preemption and irq disabled
    Monitor to ensure wakeup and need_resched occur with irq and
    preemption disabled or in irq handlers.
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tomas Glozar <tglozar@redhat.com>
Cc: Juri Lelli <jlelli@redhat.com>
Cc: Clark Williams <williams@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
Link: https://lore.kernel.org/20250728135022.255578-10-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
Acked-by: Nam Cao <namcao@linutronix.de>
Tested-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
		
	
			
		
			
				
	
	
		
			212 lines
		
	
	
	
		
			4.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			212 lines
		
	
	
	
		
			4.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* SPDX-License-Identifier: GPL-2.0 */
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| #undef TRACE_SYSTEM
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| #define TRACE_SYSTEM rv
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| 
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| #if !defined(_TRACE_RV_H) || defined(TRACE_HEADER_MULTI_READ)
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| #define _TRACE_RV_H
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| 
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| #include <linux/rv.h>
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| #include <linux/tracepoint.h>
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| 
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| #ifdef CONFIG_DA_MON_EVENTS_IMPLICIT
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| DECLARE_EVENT_CLASS(event_da_monitor,
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| 
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| 	TP_PROTO(char *state, char *event, char *next_state, bool final_state),
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| 
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| 	TP_ARGS(state, event, next_state, final_state),
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| 
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| 	TP_STRUCT__entry(
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| 		__string(	state,		state		)
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| 		__string(	event,		event		)
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| 		__string(	next_state,	next_state	)
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| 		__field(	bool,		final_state	)
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| 	),
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| 
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| 	TP_fast_assign(
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| 		__assign_str(state);
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| 		__assign_str(event);
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| 		__assign_str(next_state);
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| 		__entry->final_state = final_state;
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| 	),
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| 
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| 	TP_printk("%s x %s -> %s%s",
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| 		__get_str(state),
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| 		__get_str(event),
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| 		__get_str(next_state),
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| 		__entry->final_state ? " (final)" : "")
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| );
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| 
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| DECLARE_EVENT_CLASS(error_da_monitor,
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| 
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| 	TP_PROTO(char *state, char *event),
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| 
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| 	TP_ARGS(state, event),
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| 
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| 	TP_STRUCT__entry(
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| 		__string(	state,	state	)
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| 		__string(	event,	event	)
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| 	),
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| 
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| 	TP_fast_assign(
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| 		__assign_str(state);
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| 		__assign_str(event);
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| 	),
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| 
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| 	TP_printk("event %s not expected in the state %s",
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| 		__get_str(event),
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| 		__get_str(state))
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| );
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| 
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| #include <monitors/wip/wip_trace.h>
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| #include <monitors/sco/sco_trace.h>
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| #include <monitors/scpd/scpd_trace.h>
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| #include <monitors/snep/snep_trace.h>
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| #include <monitors/sts/sts_trace.h>
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| #include <monitors/opid/opid_trace.h>
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| // Add new monitors based on CONFIG_DA_MON_EVENTS_IMPLICIT here
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| 
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| #endif /* CONFIG_DA_MON_EVENTS_IMPLICIT */
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| 
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| #ifdef CONFIG_DA_MON_EVENTS_ID
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| DECLARE_EVENT_CLASS(event_da_monitor_id,
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| 
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| 	TP_PROTO(int id, char *state, char *event, char *next_state, bool final_state),
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| 
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| 	TP_ARGS(id, state, event, next_state, final_state),
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| 
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| 	TP_STRUCT__entry(
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| 		__field(	int,		id		)
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| 		__string(	state,		state		)
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| 		__string(	event,		event		)
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| 		__string(	next_state,	next_state	)
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| 		__field(	bool,		final_state	)
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| 	),
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| 
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| 	TP_fast_assign(
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| 		__assign_str(state);
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| 		__assign_str(event);
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| 		__assign_str(next_state);
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| 		__entry->id		= id;
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| 		__entry->final_state	= final_state;
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| 	),
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| 
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| 	TP_printk("%d: %s x %s -> %s%s",
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| 		__entry->id,
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| 		__get_str(state),
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| 		__get_str(event),
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| 		__get_str(next_state),
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| 		__entry->final_state ? " (final)" : "")
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| );
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| 
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| DECLARE_EVENT_CLASS(error_da_monitor_id,
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| 
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| 	TP_PROTO(int id, char *state, char *event),
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| 
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| 	TP_ARGS(id, state, event),
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| 
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| 	TP_STRUCT__entry(
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| 		__field(	int,	id	)
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| 		__string(	state,	state	)
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| 		__string(	event,	event	)
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| 	),
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| 
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| 	TP_fast_assign(
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| 		__assign_str(state);
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| 		__assign_str(event);
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| 		__entry->id	= id;
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| 	),
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| 
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| 	TP_printk("%d: event %s not expected in the state %s",
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| 		__entry->id,
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| 		__get_str(event),
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| 		__get_str(state))
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| );
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| 
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| #include <monitors/wwnr/wwnr_trace.h>
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| #include <monitors/snroc/snroc_trace.h>
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| #include <monitors/nrp/nrp_trace.h>
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| #include <monitors/sssw/sssw_trace.h>
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| // Add new monitors based on CONFIG_DA_MON_EVENTS_ID here
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| 
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| #endif /* CONFIG_DA_MON_EVENTS_ID */
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| #ifdef CONFIG_LTL_MON_EVENTS_ID
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| DECLARE_EVENT_CLASS(event_ltl_monitor_id,
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| 
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| 	TP_PROTO(struct task_struct *task, char *states, char *atoms, char *next),
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| 
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| 	TP_ARGS(task, states, atoms, next),
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| 
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| 	TP_STRUCT__entry(
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| 		__string(comm, task->comm)
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| 		__field(pid_t, pid)
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| 		__string(states, states)
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| 		__string(atoms, atoms)
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| 		__string(next, next)
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| 	),
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| 
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| 	TP_fast_assign(
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| 		__assign_str(comm);
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| 		__entry->pid = task->pid;
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| 		__assign_str(states);
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| 		__assign_str(atoms);
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| 		__assign_str(next);
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| 	),
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| 
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| 	TP_printk("%s[%d]: (%s) x (%s) -> (%s)", __get_str(comm), __entry->pid,
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| 		  __get_str(states), __get_str(atoms), __get_str(next))
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| );
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| 
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| DECLARE_EVENT_CLASS(error_ltl_monitor_id,
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| 
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| 	TP_PROTO(struct task_struct *task),
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| 
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| 	TP_ARGS(task),
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| 
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| 	TP_STRUCT__entry(
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| 		__string(comm, task->comm)
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| 		__field(pid_t, pid)
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| 	),
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| 
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| 	TP_fast_assign(
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| 		__assign_str(comm);
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| 		__entry->pid = task->pid;
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| 	),
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| 
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| 	TP_printk("%s[%d]: violation detected", __get_str(comm), __entry->pid)
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| );
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| #include <monitors/pagefault/pagefault_trace.h>
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| #include <monitors/sleep/sleep_trace.h>
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| // Add new monitors based on CONFIG_LTL_MON_EVENTS_ID here
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| #endif /* CONFIG_LTL_MON_EVENTS_ID */
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| 
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| #ifdef CONFIG_RV_MON_MAINTENANCE_EVENTS
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| /* Tracepoint useful for monitors development, currenly only used in DA */
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| TRACE_EVENT(rv_retries_error,
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| 
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| 	TP_PROTO(char *name, char *event),
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| 
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| 	TP_ARGS(name, event),
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| 
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| 	TP_STRUCT__entry(
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| 		__string(	name,	name	)
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| 		__string(	event,	event	)
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| 	),
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| 
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| 	TP_fast_assign(
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| 		__assign_str(name);
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| 		__assign_str(event);
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| 	),
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| 
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| 	TP_printk(__stringify(MAX_DA_RETRY_RACING_EVENTS)
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| 		" retries reached for event %s, resetting monitor %s",
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| 		__get_str(event), __get_str(name))
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| );
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| #endif /* CONFIG_RV_MON_MAINTENANCE_EVENTS */
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| #endif /* _TRACE_RV_H */
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| 
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| /* This part must be outside protection */
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| #undef TRACE_INCLUDE_PATH
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| #define TRACE_INCLUDE_PATH .
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| #undef TRACE_INCLUDE_FILE
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| #define TRACE_INCLUDE_FILE rv_trace
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| #include <trace/define_trace.h>
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