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 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 7F1C8CA1016 for ; Mon, 8 Sep 2025 19:46:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=TEbp/+j7qZJ1gKj1A8GOOUN2/87E98yqaMje9Zy3rK0=; b=NQnv0UHymXTiymEb0UycRlwwMY 5gzto8EpTK4RJzc9Kp+g0m1YSQpJjfr6+FsNn2pyvU2kKiTX1760JVQNl9o3Be51ccfeClJkKJ2dj Kr/uNQ0XHrFcccT1AAWh8MxvCE9pcOZnS/BAPNdiMtg3G1CDnMs5Qr/Vdspt6eOcXwT4rFI6Rw05m QJ8CDiG+0DivriZ2mHdE/Ji58N/Qzx6ZnlHLTu6BoduMERIKobymNFbEP/yIGPNT+g9UNZUI2p6UC x5JsjLb6DUcNc5751Ho8iI3utVRRF4i/v/aFEg1aHsCvXkjLiloz7c7HGND7y40aF4CQDAApZ3y/l VcG1EUrA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uvhpA-00000001zAh-2Mgg; Mon, 08 Sep 2025 19:46:48 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uvemW-00000000lOb-1qf1 for linux-arm-kernel@lists.infradead.org; Mon, 08 Sep 2025 16:31:54 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 5C46544A0A; Mon, 8 Sep 2025 16:31:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3B4D7C4CEF9; Mon, 8 Sep 2025 16:31:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757349112; bh=34uZqtOIifxx7Qodt8KhbqZ4rpIhHdbh4fyeIBhH5VI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Fb5GFOK+rgyb5ds0tm+g9TuE1oDCmwFV0CBYo9vFZmd8YHy+ziAnur9Fc0uODcq70 VlsYxCDDb6mG7ZJxKyMMK3rmARq3vK8/t017NkWGz51+sLNQ/tbyU1cZ4785d0cgdP dZJ2pic9pufNEpJhKg12mQYKuizvSp5N70lC7u6F7zwwmk+7/chpac0c4Q4iB9ouFf fAZvTLW0SJVGcXe71JKHtBEW6DOnA3pl/7/I2HGwajKbthlS49V1Bgn6glOP3n9UeB 2kYD1UZd2Hv941e5oe83PqpGPd8Hgyj9JXy0671n1EKGxoVaGclkrNLTeDJVMcYKUF cOgOpex6toBMA== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1uvemU-00000004NTm-1jcW; Mon, 08 Sep 2025 16:31:50 +0000 From: Marc Zyngier To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org Cc: Thomas Gleixner , Mark Rutland , Will Deacon , "Rafael J. Wysocki" , Rob Herring , Saravana Kannan , Greg Kroah-Hartman , Sven Peter , Janne Grunau , Suzuki K Poulose , James Clark Subject: [PATCH 18/25] perf: arm_pmu: Request specific affinities for percpu NMI/IRQ Date: Mon, 8 Sep 2025 17:31:20 +0100 Message-Id: <20250908163127.2462948-19-maz@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250908163127.2462948-1-maz@kernel.org> References: <20250908163127.2462948-1-maz@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, tglx@linutronix.de, mark.rutland@arm.com, will@kernel.org, rafael@kernel.org, robh@kernel.org, saravanak@google.com, gregkh@linuxfoundation.org, sven@kernel.org, j@jannau.net, suzuki.poulose@arm.com, james.clark@linaro.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250908_093152_509331_295EE2FA X-CRM114-Status: GOOD ( 13.48 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Let the PMU driver request both NMI and normal IRQs with an affinity mask matching the PMU affinity. Signed-off-by: Marc Zyngier --- drivers/perf/arm_pmu.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c index 044c9c6296997..0d64e929d9bf0 100644 --- a/drivers/perf/arm_pmu.c +++ b/drivers/perf/arm_pmu.c @@ -679,13 +679,14 @@ int armpmu_request_irq(struct arm_pmu * __percpu *armpmu, int irq, int cpu) } } else if (armpmu_count_irq_users(cpu, irq) == 0) { err = request_percpu_nmi(irq, handler, "arm-pmu", - NULL, - &cpu_armpmu); + per_cpu(pmu_affinity, cpu), + armpmu); /* If cannot get an NMI, get a normal interrupt */ if (err) { - err = request_percpu_irq(irq, handler, "arm-pmu", - &cpu_armpmu); + err = request_percpu_irq_affinity(irq, handler, "arm-pmu", + per_cpu(pmu_affinity, cpu), + armpmu); irq_ops = &percpu_pmuirq_ops; } else { has_nmi = true; -- 2.39.2