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From: Gabriele Monaco <gmonaco@redhat.com>
To: linux-kernel@vger.kernel.org,
	Steven Rostedt <rostedt@goodmis.org>,
	linux-trace-kernel@vger.kernel.org
Cc: Gabriele Monaco <gmonaco@redhat.com>,
	Nam Cao <namcao@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Tomas Glozar <tglozar@redhat.com>, Juri Lelli <jlelli@redhat.com>,
	Clark Williams <williams@redhat.com>,
	John Kacur <jkacur@redhat.com>
Subject: [PATCH v3 03/17] rv: Add da_handle_start_run_event_ to per-task monitors
Date: Tue, 15 Jul 2025 09:14:20 +0200	[thread overview]
Message-ID: <20250715071434.22508-4-gmonaco@redhat.com> (raw)
In-Reply-To: <20250715071434.22508-1-gmonaco@redhat.com>

The RV da_monitor API allows to start monitors in two ways:
da_handle_start_event_NAME and da_handle_start_run_event_NAME.
The former is used when the event is followed by the initial state of
the module, so we ignore the event but we know the monitor is in the
initial state and can start monitoring, the latter can be used if the
event can only occur in the initial state, so we do handle the event as
if the monitor was in the initial state.
This latter API is defined for implicit monitors but not per-task ones.

Define da_handle_start_run_event_NAME macro also for per-task monitors.

Reviewed-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
---
 include/rv/da_monitor.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/include/rv/da_monitor.h b/include/rv/da_monitor.h
index 15f9ed4e4bb69..ed3c34fe18d61 100644
--- a/include/rv/da_monitor.h
+++ b/include/rv/da_monitor.h
@@ -487,6 +487,30 @@ da_handle_start_event_##name(struct task_struct *tsk, enum events_##name event)
 	__da_handle_event_##name(da_mon, tsk, event);						\
 												\
 	return 1;										\
+}												\
+												\
+/*												\
+ * da_handle_start_run_event_##name - start monitoring and handle event				\
+ *												\
+ * This function is used to notify the monitor that the system is in the			\
+ * initial state, so the monitor can start monitoring and handling event.			\
+ */												\
+static inline bool										\
+da_handle_start_run_event_##name(struct task_struct *tsk, enum events_##name event)		\
+{												\
+	struct da_monitor *da_mon;								\
+												\
+	if (!da_monitor_enabled_##name())							\
+		return 0;									\
+												\
+	da_mon = da_get_monitor_##name(tsk);							\
+												\
+	if (unlikely(!da_monitoring_##name(da_mon)))						\
+		da_monitor_start_##name(da_mon);						\
+												\
+	__da_handle_event_##name(da_mon, tsk, event);						\
+												\
+	return 1;										\
 }
 
 /*
-- 
2.50.1


  parent reply	other threads:[~2025-07-15  7:15 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-15  7:14 [PATCH v3 00/17] rv: Add monitors to validate task switch Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 01/17] tools/rv: Do not skip idle in trace Gabriele Monaco
2025-07-16 11:50   ` Peter Zijlstra
2025-07-16 12:18     ` Gabriele Monaco
2025-07-16 12:41       ` Peter Zijlstra
2025-07-16 13:05         ` Gabriele Monaco
2025-07-16 13:08           ` Peter Zijlstra
2025-07-16 13:13             ` Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 02/17] tools/rv: Stop gracefully also on SIGTERM Gabriele Monaco
2025-07-15  7:14 ` Gabriele Monaco [this message]
2025-07-15  7:14 ` [PATCH v3 04/17] rv: Remove trailing whitespace from tracepoint string Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 05/17] rv: Return init error when registering monitors Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 06/17] rv: Use strings in da monitors tracepoints Gabriele Monaco
2025-07-15 14:11   ` Nam Cao
2025-07-15  7:14 ` [PATCH v3 07/17] rv: Adjust monitor dependencies Gabriele Monaco
2025-07-16  8:19   ` Nam Cao
2025-07-16  8:30     ` Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 08/17] verification/rvgen: Organise Kconfig entries for nested monitors Gabriele Monaco
2025-07-15 14:48   ` Nam Cao
2025-07-16  7:40     ` Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 09/17] tools/dot2c: Fix generated files going over 100 column limit Gabriele Monaco
2025-07-15 15:01   ` Nam Cao
     [not found]     ` <d69862275becf1d296c80a08b29b2081857a85a1.camel@redhat.com>
2025-07-16  9:34       ` Nam Cao
2025-07-15  7:14 ` [PATCH v3 10/17] rv: " Gabriele Monaco
2025-07-15 15:08   ` Nam Cao
2025-07-15 15:24     ` Gabriele Monaco
2025-07-16  8:13       ` Nam Cao
2025-07-16  9:07         ` Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 11/17] rv: Retry when da monitor detects race conditions Gabriele Monaco
2025-07-15 15:23   ` Nam Cao
2025-07-16  8:20     ` Gabriele Monaco
2025-07-16  8:27       ` Nam Cao
2025-07-16  8:38         ` Gabriele Monaco
2025-07-16  8:45           ` Nam Cao
2025-07-16  8:59             ` Gabriele Monaco
2025-07-16  9:02               ` Nam Cao
2025-07-15  7:14 ` [PATCH v3 12/17] sched: Adapt sched tracepoints for RV task model Gabriele Monaco
2025-07-16 12:38   ` Peter Zijlstra
2025-07-16 13:40     ` Gabriele Monaco
2025-07-16 13:45       ` Peter Zijlstra
2025-07-16 14:07         ` Gabriele Monaco
2025-07-16 14:19           ` Peter Zijlstra
2025-07-16 14:38             ` Gabriele Monaco
2025-07-16 15:31               ` Peter Zijlstra
2025-07-16 16:14                 ` Gabriele Monaco
2025-07-16 15:09     ` Gabriele Monaco
2025-07-16 15:47       ` Peter Zijlstra
2025-07-15  7:14 ` [PATCH v3 13/17] rv: Adapt the sco monitor to the new set_state Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 14/17] rv: Extend snroc model Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 15/17] rv: Replace tss monitor with more complete sts Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 16/17] rv: Add nrp and sssw per-task monitors Gabriele Monaco
2025-07-15  7:14 ` [PATCH v3 17/17] rv: Add opid per-cpu monitor Gabriele Monaco
2025-07-16  9:38   ` Nam Cao
2025-07-16 10:00     ` Gabriele Monaco
2025-07-18 10:26     ` Gabriele Monaco
2025-07-16  9:42 ` [PATCH v3 00/17] rv: Add monitors to validate task switch Nam Cao
2025-07-16 12:20   ` Gabriele Monaco

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