From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valentin Schneider Subject: [PATCH v5 3/7] smp: Trace IPIs sent via arch_send_call_function_ipi_mask() Date: Tue, 7 Mar 2023 14:35:54 +0000 Message-ID: <20230307143558.294354-4-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=1678199807; 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=EP4LqydUSiQVulPj8M4fIZioGJfqcQn9EHXEOk9M9cI=; b=PlWEd2kJ4bW7E3YRrg4h7O514ku91OU9huA5oldmIz0YREGhYqEecnwoPukOMztkXDyI/c z9i/QemGrCZkfUNbcI6OVXJaGXm4IkVPsRA9j1XOLAs3eRMm5L643v5zsC9CfLcfQh6An0 MiF6KGF0BgKTaJpBH6+ojsHok2fA+J0= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678199807; 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=EP4LqydUSiQVulPj8M4fIZioGJfqcQn9EHXEOk9M9cI=; b=PlWEd2kJ4bW7E3YRrg4h7O514ku91OU9huA5oldmIz0YREGhYqEecnwoPukOMztkXDyI/c z9i/QemGrCZkfUNbcI6OVXJaGXm4IkVPsRA9j1XOLAs3eRMm5L643v5zsC9CfLcfQh6An0 MiF6KGF0BgKTaJpBH6+ojsHok2fA+J0= 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 This simply wraps around the arch function and prepends it with a tracepoint, similar to send_call_function_single_ipi(). Signed-off-by: Valentin Schneider Reviewed-by: Steven Rostedt (Google) --- kernel/smp.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/kernel/smp.c b/kernel/smp.c index e2ca1e2f31274..93b4386cd3096 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -160,6 +160,13 @@ void __init call_function_init(void) smpcfd_prepare_cpu(smp_processor_id()); } +static __always_inline void +send_call_function_ipi_mask(const struct cpumask *mask) +{ + trace_ipi_send_cpumask(mask, _RET_IP_, NULL); + arch_send_call_function_ipi_mask(mask); +} + #ifdef CONFIG_CSD_LOCK_WAIT_DEBUG static DEFINE_STATIC_KEY_FALSE(csdlock_debug_enabled); @@ -970,7 +977,7 @@ static void smp_call_function_many_cond(const struct cpumask *mask, if (nr_cpus == 1) send_call_function_single_ipi(last_cpu); else if (likely(nr_cpus > 1)) - arch_send_call_function_ipi_mask(cfd->cpumask_ipi); + send_call_function_ipi_mask(cfd->cpumask_ipi); cfd_seq_store(this_cpu_ptr(&cfd_seq_local)->pinged, this_cpu, CFD_SEQ_NOCPU, CFD_SEQ_PINGED); } -- 2.31.1