From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.librecores.org (lists.librecores.org [88.198.125.70]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E9EEC43219 for ; Sat, 8 Oct 2022 05:01:10 +0000 (UTC) Received: from [172.31.1.100] (localhost.localdomain [127.0.0.1]) by mail.librecores.org (Postfix) with ESMTP id A096B248E6; Sat, 8 Oct 2022 07:01:08 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mail.librecores.org (Postfix) with ESMTP id 8D80824B2C for ; Fri, 7 Oct 2022 17:46:13 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1665157572; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=V8NlfJJNnBH1Hg+bNlEeNOaLSp643edXbrFkYOuHdj0=; b=Q5Wuzts8P2zjR2zDG3CTNYsVoV45LIFhIftsET9WVpF+odRSBxlkZzVBp8eykyFYQ4k8Hf EBK/2eRV83JPvjDrT/5N8NkRdD6LlyLC4qUERl70IrdfhfYIResenak4NQseXtLegOiWmQ vQkrWBFPbru4NVYua3bFreAC0BLhAL4= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-593-tA9oYxNhOiWoF1rnbtSggQ-1; Fri, 07 Oct 2022 11:46:09 -0400 X-MC-Unique: tA9oYxNhOiWoF1rnbtSggQ-1 Received: by mail-wr1-f70.google.com with SMTP id h17-20020adfaa91000000b0022e9f2245c8so686467wrc.19 for ; Fri, 07 Oct 2022 08:46:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=V8NlfJJNnBH1Hg+bNlEeNOaLSp643edXbrFkYOuHdj0=; b=4WXvdamCPme5PMJjeOtHx6gnFEiUT25WsLMeUNi/gWuyqnUMJQ54rvUmrsG+xi7ce8 bRu5Rz0XEg4tf3QPtoYy9aKQOAih7S6pKKMwZNPAbaVuGSwWicWb4/YWI1sCj3pspFf4 li0VsHvaI9GlkSeQE0l7VyPT/Dk2o/oXn8W/UyT0OPnP1uBr+jlxGWKbSbqdCTxu6hzT 5+bNzgMeUIwpzEV5n9zrQtUzUNpt+LYql+dVNxDj56PgM6KqX9lgSa3SivFkY/epCK2l JTgXM3rVJgJu/atIRWiQmlEXr3S5W/5NWoJdJRYJewSwIPa2LZa2ksbTnEOlCBotfgjA gHSw== X-Gm-Message-State: ACrzQf36r8YDmHYI+WPaFebKLArgYQSqcOAY42pZmq8OOeqFje5wsZ8Z W3u0uh4jeJ2/LanAUJIDp2uTciaDdS3EqCsehj62hsBT3nlygG8GpygrIYOWykZPssM5sDP3A7k tXUPKvg7PcRoKDkYzY+qa8iNQTg== X-Received: by 2002:a5d:64cd:0:b0:22e:2fc1:9511 with SMTP id f13-20020a5d64cd000000b0022e2fc19511mr3566252wri.415.1665157568142; Fri, 07 Oct 2022 08:46:08 -0700 (PDT) X-Google-Smtp-Source: AMsMyM4t9ram8oou3fr6TpdC1R8We+758fvnnqCUt2NCTCIakvPHOGi5POwCK/ARZj0LE9PFnGcXMg== X-Received: by 2002:a5d:64cd:0:b0:22e:2fc1:9511 with SMTP id f13-20020a5d64cd000000b0022e2fc19511mr3566217wri.415.1665157567961; Fri, 07 Oct 2022 08:46:07 -0700 (PDT) Received: from vschneid.remote.csb ([149.71.65.94]) by smtp.gmail.com with ESMTPSA id i18-20020adfb652000000b0022e38c93195sm2339428wre.34.2022.10.07.08.46.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Oct 2022 08:46:06 -0700 (PDT) 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 Subject: [RFC PATCH 4/5] irq_work: Trace calls to arch_irq_work_raise() Date: Fri, 7 Oct 2022 16:45:32 +0100 Message-Id: <20221007154533.1878285-4-vschneid@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20221007154145.1877054-1-vschneid@redhat.com> References: <20221007154145.1877054-1-vschneid@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-Mailman-Approved-At: Sat, 08 Oct 2022 07:01:05 +0200 X-BeenThere: openrisc@lists.librecores.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Discussion around the OpenRISC processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Errors-To: openrisc-bounces@lists.librecores.org Sender: "OpenRISC" Adding a tracepoint to send_call_function_single_ipi() covers irq_work_queue_on() when the CPU isn't the local one - add a tracepoint to irq_work_raise() to cover the other cases. Signed-off-by: Valentin Schneider --- kernel/irq_work.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/kernel/irq_work.c b/kernel/irq_work.c index 7afa40fe5cc4..5a550b681878 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 +76,14 @@ void __weak arch_irq_work_raise(void) */ } +static inline void irq_work_raise(void) +{ + if (arch_irq_work_has_interrupt()) + trace_ipi_send_cpu(_RET_IP_, smp_processor_id()); + + 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 +109,7 @@ 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(); } /* Enqueue the irq work @work on the current CPU */ -- 2.31.1