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From: Gabriele Monaco <gmonaco@redhat.com>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
	Steven Rostedt <rostedt@goodmis.org>,
	Gabriele Monaco <gmonaco@redhat.com>
Cc: Nam Cao <namcao@linutronix.de>, Wen Yang <wen.yang@linux.dev>,
	Juri Lelli <juri.lelli@redhat.com>
Subject: [PATCH 04/10] tools/rvgen: Default to HA_TIMER_WHEEL for jiffy clocks
Date: Tue, 29 Sep 2026 14:49:02 +0200	[thread overview]
Message-ID: <20260929124908.177676-5-gmonaco@redhat.com> (raw)
In-Reply-To: <20260929124908.177676-1-gmonaco@redhat.com>

HA_TIMER_HRTIMER now requires a ns base also if the clock is in jiffy,
defaulting to using it in that case adds no precision while increasing
complexity.

Use HA_TIMER_HRTIMER as default in the generated code only for ns based
clocks and use HA_TIMER_WHEEL otherwise.

Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
---
 tools/verification/rvgen/rvgen/dot2k.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/verification/rvgen/rvgen/dot2k.py b/tools/verification/rvgen/rvgen/dot2k.py
index c8109f3602a6..5d60b1b9fa28 100644
--- a/tools/verification/rvgen/rvgen/dot2k.py
+++ b/tools/verification/rvgen/rvgen/dot2k.py
@@ -495,8 +495,10 @@ f"""static bool ha_verify_constraint(struct ha_monitor *ha_mon,
 
     def _fill_timer_type(self) -> list:
         if self.has_invariant:
-            return [
+            if {"ns", "us", "ms", "s"}.intersection(self.env_types.values()):
+                return [
                     "/* XXX: If the monitor has several instances, consider HA_TIMER_WHEEL */",
                     "#define HA_TIMER_TYPE HA_TIMER_HRTIMER"
-                    ]
+                ]
+            return ["#define HA_TIMER_TYPE HA_TIMER_WHEEL"]
         return []
-- 
2.55.0


  parent reply	other threads:[~2026-09-29 12:49 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-29 12:48 [PATCH 00/10] rv: Add remaining deadline monitors Gabriele Monaco
2026-09-29 12:48 ` [PATCH 01/10] rv: Force environment reset action on HA monitor start Gabriele Monaco
2026-09-29 12:49 ` [PATCH 02/10] rv: Remove unused ha_monitor_env_invalid() Gabriele Monaco
2026-09-29 12:49 ` [PATCH 03/10] rv: Cache timer budget when starting HA timers Gabriele Monaco
2026-09-29 12:49 ` Gabriele Monaco [this message]
2026-09-29 12:49 ` [PATCH 05/10] sched: Add task enqueue/dequeue trace points Gabriele Monaco
2026-09-29 12:49 ` [PATCH 06/10] rv: Add enqueue/dequeue to snroc monitor Gabriele Monaco
2026-09-29 12:49 ` [PATCH 07/10] rv: Add throttle deadline monitor Gabriele Monaco
2026-09-29 12:49 ` [PATCH 08/10] rv: Add dl_server specific monitors Gabriele Monaco
2026-09-29 12:49 ` [PATCH 09/10] rv: Add KUnit test for throttle monitor Gabriele Monaco
2026-09-29 12:49 ` [PATCH 10/10] selftests/verification: Lower stressor priority in rv_deadline Gabriele Monaco

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