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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>
105 lines
1.9 KiB
C
105 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Automatically generated C representation of opid automaton
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* For further information about this format, see kernel documentation:
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* Documentation/trace/rv/deterministic_automata.rst
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*/
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enum states_opid {
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disabled_opid = 0,
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enabled_opid,
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in_irq_opid,
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irq_disabled_opid,
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preempt_disabled_opid,
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state_max_opid
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};
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#define INVALID_STATE state_max_opid
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enum events_opid {
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irq_disable_opid = 0,
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irq_enable_opid,
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irq_entry_opid,
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preempt_disable_opid,
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preempt_enable_opid,
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sched_need_resched_opid,
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sched_waking_opid,
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event_max_opid
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};
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struct automaton_opid {
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char *state_names[state_max_opid];
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char *event_names[event_max_opid];
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unsigned char function[state_max_opid][event_max_opid];
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unsigned char initial_state;
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bool final_states[state_max_opid];
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};
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static const struct automaton_opid automaton_opid = {
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.state_names = {
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"disabled",
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"enabled",
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"in_irq",
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"irq_disabled",
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"preempt_disabled"
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},
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.event_names = {
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"irq_disable",
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"irq_enable",
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"irq_entry",
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"preempt_disable",
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"preempt_enable",
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"sched_need_resched",
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"sched_waking"
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},
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.function = {
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{
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INVALID_STATE,
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preempt_disabled_opid,
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disabled_opid,
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INVALID_STATE,
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irq_disabled_opid,
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disabled_opid,
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disabled_opid
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},
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{
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irq_disabled_opid,
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INVALID_STATE,
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INVALID_STATE,
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preempt_disabled_opid,
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enabled_opid,
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INVALID_STATE,
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INVALID_STATE
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},
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{
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INVALID_STATE,
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enabled_opid,
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in_irq_opid,
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INVALID_STATE,
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INVALID_STATE,
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in_irq_opid,
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in_irq_opid
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},
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{
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INVALID_STATE,
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enabled_opid,
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in_irq_opid,
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disabled_opid,
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INVALID_STATE,
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irq_disabled_opid,
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INVALID_STATE
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},
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{
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disabled_opid,
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INVALID_STATE,
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INVALID_STATE,
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INVALID_STATE,
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enabled_opid,
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INVALID_STATE,
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INVALID_STATE
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},
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},
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.initial_state = disabled_opid,
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.final_states = { 0, 1, 0, 0, 0 },
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};
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