From patchwork Tue Mar 7 14:35:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Valentin Schneider X-Patchwork-Id: 13163817 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3A205C678D5 for ; Tue, 7 Mar 2023 14:46:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230156AbjCGOqE (ORCPT ); Tue, 7 Mar 2023 09:46:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229975AbjCGOoC (ORCPT ); Tue, 7 Mar 2023 09:44:02 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8CB721977 for ; Tue, 7 Mar 2023 06:37:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678199806; 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=HydYYez2NxR/AJvWf/guDbcPXbBQUPskuG1M3+vhgNE5rpTTnDCVTJZWKMzD2dz+jN3KRg rVjVDUuk/BSty4l+a5iiiAsTVQl3V7QM/DZe0OKdAuXN6xpM1vmP+2TJCifB765Ui6ZQBQ 0kAlTWbkTOzVmTv3Pz4DsjWejSY+Cew= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-609-pvm_78mlN3uZ4lMOoHRrTA-1; Tue, 07 Mar 2023 09:36:43 -0500 X-MC-Unique: pvm_78mlN3uZ4lMOoHRrTA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6E2991C0419A; Tue, 7 Mar 2023 14:36:40 +0000 (UTC) Received: from vschneid.remote.csb (unknown [10.33.37.13]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 7DFE840B40E4; Tue, 7 Mar 2023 14:36:36 +0000 (UTC) From: Valentin Schneider 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 , "Paul E. McKenney" , Peter Zijlstra , Thomas Gleixner , Sebastian Andrzej Siewior , Juri Lelli , Daniel Bristot de Oliveira , Marcelo Tosatti , Frederic Weisbecker , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Marc Zyngier , Mark Rutland , Russell King , Nicholas Piggin , Guo Ren , "David S. Miller" 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> In-Reply-To: <20230307143558.294354-1-vschneid@redhat.com> References: <20230307143558.294354-1-vschneid@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org 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); }