From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valentin Schneider Subject: [PATCH v5 1/7] trace: Add trace_ipi_send_cpumask() Date: Tue, 7 Mar 2023 14:35:52 +0000 Message-ID: <20230307143558.294354-2-vschneid@redhat.com> References: <20230307143558.294354-1-vschneid@redhat.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678199795; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=sqdAC23AFCpafEftyGbYSrYoVeo5kk0ftc/PmTPLnCU=; b=celfnaQsPPRBGUi6oCcaZHVSkv3ah987/j7oi7XpHjC/BM0T5PVnn0DNRzoO2IA0IPvlDc cJXpy7AUffWJpF+D/xdZgpfvcbUrIj/wgSYqTrG6rbjYLtX+S5XE+ih2SttCF+kTWrJ0ek rc6ZJImc8WaP3rzNvBwNx5vfs7LmxOc= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678199796; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=sqdAC23AFCpafEftyGbYSrYoVeo5kk0ftc/PmTPLnCU=; b=Qrh1F578SCVq3dxxgdn94zkfA3ZI78qbvkPihSxv2JEMyjAgV5GCQBUPvYxntnQEBN0sAV NrniaAwJQ2nlS8ETBITZrIQlyF9L+IZ8+z2kFSvD9lOLTHezOhjUdWUY8U1RJmdW4cCYxr qn8M73WVeyNs2/zp/Yhr5TCtlD9A948= In-Reply-To: <20230307143558.294354-1-vschneid@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane-mx.org@lists.ozlabs.org Sender: "Linuxppc-dev" Content-Type: text/plain; charset="us-ascii" 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: Juri Lelli , Mark Rutland , Dave Hansen , "Paul E. McKenney" , Peter Zijlstra , Marc Zyngier , Sebastian Andrzej Siewior , Marcelo Tosatti , Russell King , Steven Rostedt , "David S. Miller" , Ingo Molnar , Borislav Petkov , Nicholas Piggin , "H. Peter Anvin" , Guo Ren , Thomas Gleixner , Daniel Bristot de Oliveira , Frederic Weisbecker 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 Reviewed-by: Steven Rostedt (Google) --- 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