From patchwork Tue Mar 7 14:35:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Valentin Schneider X-Patchwork-Id: 13163927 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 8E034C678D5 for ; Tue, 7 Mar 2023 15:09:13 +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=RLIBppEfqDANyBeh5y5ElzWpB8JXApnik3R8ihyN784=; b=DRByyghvFvznZg wWPe8R/B5QPlj88U5GMolSZW4Xb0kYefABcbU1/KU9jpMVjAPLh8wzyJog9SivelVJItAUhCjx6Qh dFH9uq1Lcs/1gQkj2B2OrW25/oThWfbsZWjsbUNtQ6aswvh28NZZmMi/AniMEHgmPrYv7KAwGdBYZ MDUSjJ4izgjX55jRVW98hwPMeHCfTUE/Kilb3QvrUFfRJhg0+lrXibpEEtzzRNnK/MVxPVEW8DQZa A7lf1/IAT+1nn455U5mfH4AGqbNnEyhjl2kaR6OQuCM6WQryYwuX8FG7MJxF4hNhoTVNEDWo1UkKS HkYl3H1nea508jzx7pdQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pZYw4-0016Iu-Ek; Tue, 07 Mar 2023 15:09:04 +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 1pZYQg-000r4s-Nm for linux-riscv@lists.infradead.org; Tue, 07 Mar 2023 14:36:41 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678199797; 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=KnOTP6axO5kZfJPjpqg9B4dET96fECvbqfdeAp4YzradG7u1cSzEkIWSobhyBWVII4ujqZ cBdMD9l8K+nRywK20zMRp0Tc0ogNvVOaEgfxBJhJnmKnV1VOoq3qU6OClYCneTb8pxE77d TK9/YCO8EOxqKN/ef/Hl3kwqT1X/FaA= 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-316--Mbwj-W3NLC_0yM8Mt1Txw-1; Tue, 07 Mar 2023 09:36:31 -0500 X-MC-Unique: -Mbwj-W3NLC_0yM8Mt1Txw-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 8FCA33C6986A; Tue, 7 Mar 2023 14:36:30 +0000 (UTC) Received: from vschneid.remote.csb (unknown [10.33.37.13]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 79249401B290; Tue, 7 Mar 2023 14:36:26 +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 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> 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230307_063638_997068_600E364E X-CRM114-Status: GOOD ( 12.61 ) 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 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) Signed-off-by: Peter Zijlstra (Intel) --- 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),