From: Valentin Schneider <vschneid@redhat.com>
To: linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-snps-arc@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org,
linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org,
loongarch@lists.linux.dev, linux-mips@vger.kernel.org,
openrisc@lists.librecores.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org,
x86@kernel.org
Cc: Steven Rostedt <rostedt@goodmis.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Juri Lelli <juri.lelli@redhat.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
Frederic Weisbecker <frederic@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>, Marc Zyngier <maz@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Russell King <linux@armlinux.org.uk>,
Nicholas Piggin <npiggin@gmail.com>, Guo Ren <guoren@kernel.org>,
"David S. Miller" <davem@davemloft.net>
Subject: [PATCH v4 1/7] trace: Add trace_ipi_send_cpumask()
Date: Thu, 19 Jan 2023 14:36:13 +0000 [thread overview]
Message-ID: <20230119143619.2733236-2-vschneid@redhat.com> (raw)
In-Reply-To: <20230119143619.2733236-1-vschneid@redhat.com>
trace_ipi_raise() is unsuitable for generically tracing IPI sources due to
its "reason" argument being an uninformative string (on arm64 all you get
is "Function call interrupts" for SMP calls).
Add a variant of it that exports a target cpumask, a callsite and a callback.
Signed-off-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
include/trace/events/ipi.h | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/include/trace/events/ipi.h b/include/trace/events/ipi.h
index 0be71dad6ec03..b1125dc27682c 100644
--- a/include/trace/events/ipi.h
+++ b/include/trace/events/ipi.h
@@ -35,6 +35,28 @@ TRACE_EVENT(ipi_raise,
TP_printk("target_mask=%s (%s)", __get_bitmask(target_cpus), __entry->reason)
);
+TRACE_EVENT(ipi_send_cpumask,
+
+ TP_PROTO(const struct cpumask *cpumask, unsigned long callsite, void *callback),
+
+ TP_ARGS(cpumask, callsite, callback),
+
+ TP_STRUCT__entry(
+ __cpumask(cpumask)
+ __field(void *, callsite)
+ __field(void *, callback)
+ ),
+
+ TP_fast_assign(
+ __assign_cpumask(cpumask, cpumask_bits(cpumask));
+ __entry->callsite = (void *)callsite;
+ __entry->callback = callback;
+ ),
+
+ TP_printk("cpumask=%s callsite=%pS callback=%pS",
+ __get_cpumask(cpumask), __entry->callsite, __entry->callback)
+);
+
DECLARE_EVENT_CLASS(ipi_handler,
TP_PROTO(const char *reason),
--
2.31.1
next prev parent reply other threads:[~2023-01-19 14:36 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-19 14:36 [PATCH v4 0/7] Generic IPI sending tracepoint Valentin Schneider
2023-01-19 14:36 ` Valentin Schneider [this message]
2023-01-19 14:36 ` [PATCH v4 2/7] sched, smp: Trace IPIs sent via send_call_function_single_ipi() Valentin Schneider
2023-01-19 14:36 ` [PATCH v4 3/7] smp: Trace IPIs sent via arch_send_call_function_ipi_mask() Valentin Schneider
2023-01-19 14:36 ` [PATCH v4 4/7] irq_work: Trace self-IPIs sent via arch_irq_work_raise() Valentin Schneider
2023-01-19 14:36 ` [PATCH v4 5/7] treewide: Trace IPIs sent via smp_send_reschedule() Valentin Schneider
2023-01-20 13:19 ` Huacai Chen
2023-01-19 14:36 ` [PATCH v4 6/7] smp: reword smp call IPI comment Valentin Schneider
2023-01-19 14:36 ` [PATCH v4 7/7] sched, smp: Trace smp callback causing an IPI Valentin Schneider
2023-02-14 14:10 ` [PATCH v4 0/7] Generic IPI sending tracepoint Valentin Schneider
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230119143619.2733236-2-vschneid@redhat.com \
--to=vschneid@redhat.com \
--cc=bigeasy@linutronix.de \
--cc=bp@alien8.de \
--cc=bristot@redhat.com \
--cc=dave.hansen@linux.intel.com \
--cc=davem@davemloft.net \
--cc=frederic@kernel.org \
--cc=guoren@kernel.org \
--cc=hpa@zytor.com \
--cc=juri.lelli@redhat.com \
--cc=linux-alpha@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-csky@vger.kernel.org \
--cc=linux-hexagon@vger.kernel.org \
--cc=linux-ia64@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=linux-parisc@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-sh@vger.kernel.org \
--cc=linux-snps-arc@lists.infradead.org \
--cc=linux-xtensa@linux-xtensa.org \
--cc=linux@armlinux.org.uk \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=loongarch@lists.linux.dev \
--cc=mark.rutland@arm.com \
--cc=maz@kernel.org \
--cc=mingo@redhat.com \
--cc=mtosatti@redhat.com \
--cc=npiggin@gmail.com \
--cc=openrisc@lists.librecores.org \
--cc=paulmck@kernel.org \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=sparclinux@vger.kernel.org \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).