From patchwork Fri Dec 2 15:58:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Valentin Schneider X-Patchwork-Id: 13062860 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6BEAAC4321E for ; Fri, 2 Dec 2022 16:01:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=3P3Em62RoF15asiq4nWQ0/ddOljbBsl2UJJaWsrgeTw=; b=fawn1yiX5eApRf m0o8IKzzbPtkoqKbeXeHVAfqzP0K0O42/qOgnX7ek/tH0GAUVOLG6Ro765bS0tkdP0Eseeg9qJ3C2 waw0mrLLGWrggDA5jJgF2yqMtFJj0MNK24els+6wueNztEt6D0T6fKPAlJN5Lgj7CrkKj5qiDDv6L gZfmXFfw45CUfTAKXewqi1+HOyjalx7BakPSmi9AZkesT4JtS/4KjEvHw0KrTDGj0CBCYHj01Ys3e +r+6HLFMYJPUDf62seCVI29t5Xug27V1k+rL1gjM0BNyn/eCJ/L9arKoiiBVQylgV+Ubvx9b95L0M B0ZVp7hWWaW+68j8sscQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p18TT-00HGcl-Q5; Fri, 02 Dec 2022 16:01:15 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p18Rf-00HF8E-RW for linux-riscv@lists.infradead.org; Fri, 02 Dec 2022 15:59:25 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669996762; 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=6o4aDoMnOyw6oIKqxXD/63VXzreRgu7lohjEhFx0NNg=; b=OzouMb8yq8tuKd2KsA6W7WeRnK4mbl9f7FSgRmjVtOg6F4VOm7fsy58Kqc4ISmSeFBGYkH 27AWcdnSkk6dWrFw0yx78L6k+PwZexhTSpk0eG7THjQBtPHNVbUN6/KRf2qChlW8LA7Dj3 pvf6mPoHKPBXBXR6TBIwR1HRpaAYfR4= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-594-Okj2luc0MBCEEYR4jqlogg-1; Fri, 02 Dec 2022 10:59:19 -0500 X-MC-Unique: Okj2luc0MBCEEYR4jqlogg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 92E14101A528; Fri, 2 Dec 2022 15:59:17 +0000 (UTC) Received: from vschneid.remote.csb (unknown [10.33.36.77]) by smtp.corp.redhat.com (Postfix) with ESMTPS id EAE2920290A5; Fri, 2 Dec 2022 15:59:11 +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 v3 5/8] irq_work: Trace self-IPIs sent via arch_irq_work_raise() Date: Fri, 2 Dec 2022 15:58:14 +0000 Message-Id: <20221202155817.2102944-6-vschneid@redhat.com> In-Reply-To: <20221202155817.2102944-1-vschneid@redhat.com> References: <20221202155817.2102944-1-vschneid@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221202_075924_268801_FC69671B X-CRM114-Status: GOOD ( 16.41 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org IPIs sent to remote CPUs via irq_work_queue_on() are now covered by trace_ipi_send_cpumask(), add another instance of the tracepoint to cover self-IPIs. Signed-off-by: Valentin Schneider Reviewed-by: Steven Rostedt (Google) --- kernel/irq_work.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/kernel/irq_work.c b/kernel/irq_work.c index 7afa40fe5cc43..c33e88e32a67a 100644 --- a/kernel/irq_work.c +++ b/kernel/irq_work.c @@ -22,6 +22,8 @@ #include #include +#include + static DEFINE_PER_CPU(struct llist_head, raised_list); static DEFINE_PER_CPU(struct llist_head, lazy_list); static DEFINE_PER_CPU(struct task_struct *, irq_workd); @@ -74,6 +76,16 @@ void __weak arch_irq_work_raise(void) */ } +static __always_inline void irq_work_raise(struct irq_work *work) +{ + if (trace_ipi_send_cpumask_enabled() && arch_irq_work_has_interrupt()) + trace_ipi_send_cpumask(cpumask_of(smp_processor_id()), + _RET_IP_, + work->func); + + arch_irq_work_raise(); +} + /* Enqueue on current CPU, work must already be claimed and preempt disabled */ static void __irq_work_queue_local(struct irq_work *work) { @@ -99,7 +111,7 @@ static void __irq_work_queue_local(struct irq_work *work) /* If the work is "lazy", handle it from next tick if any */ if (!lazy_work || tick_nohz_tick_stopped()) - arch_irq_work_raise(); + irq_work_raise(work); } /* Enqueue the irq work @work on the current CPU */