From nobody Fri May 8 10:48:30 2026 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 043EDC433EF for ; Wed, 4 May 2022 16:16:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353297AbiEDQTm (ORCPT ); Wed, 4 May 2022 12:19:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51110 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353255AbiEDQSw (ORCPT ); Wed, 4 May 2022 12:18:52 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7772CF1A; Wed, 4 May 2022 09:15:16 -0700 (PDT) Date: Wed, 04 May 2022 16:15:13 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1651680914; h=from:from:sender:sender:reply-to: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=qSkxNoLoTWt5gxztnJFu/bozk0kevl2CiKD8B3IjPtA=; b=gGmPTEAtzAu9bws8mpM9ve2mZf13HiO92k0cTzjN62/Ddv0pnq8iKCcRlKjWxS2XcqM9PG XhIaLHNB2WkjQhPAspmD+26TKZ13x4B5bMHXbNl1VC7rpYGe69SYPSbiS+sxa3KC1TZqHY ACf9qbJBo09+Y91jxrbZtGsNL/engbaDiYGaJjz2/aA5dCPmGMSMaHzacQPLI4ab4TFtVE KhI1ahGoVkgcttkYEy2X+17bQvXjwNM6mQlT17LT1tX1v1rdBSqeoiQ+t5EvX3eDUpnGvH wFjVH/53HrkIICM1/FpGNjkCM3QnUm4fFKfmsNc4YRE+DZp4qRPnQQfmtUMPbw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1651680914; h=from:from:sender:sender:reply-to: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=qSkxNoLoTWt5gxztnJFu/bozk0kevl2CiKD8B3IjPtA=; b=GKvGmYLr8XYCbl6ZlD7qs2M+BNAEyMqdQVE5AAEtlLxzwNGYiJHhLAI69k7bHfMCzi6HTW thZWPzs37GTbl6Cw== From: "irqchip-bot for Max Filippov" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-kernel@vger.kernel.org Subject: [irqchip: irq/irqchip-next] irqchip/xtensa-mx: Fix initial IRQ affinity in non-SMP setup Cc: stable@vger.kernel.org, Max Filippov , Marc Zyngier , tglx@linutronix.de In-Reply-To: <20220426161912.1113784-1-jcmvbkbc@gmail.com> References: <20220426161912.1113784-1-jcmvbkbc@gmail.com> MIME-Version: 1.0 Message-ID: <165168091368.4207.10786680163387255992.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the irq/irqchip-next branch of ir= qchip: Commit-ID: 168f633b1722597673e5aa5a6c7721191a9d221f Gitweb: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-plat= forms/168f633b1722597673e5aa5a6c7721191a9d221f Author: Max Filippov AuthorDate: Tue, 26 Apr 2022 09:19:12 -07:00 Committer: Marc Zyngier CommitterDate: Wed, 04 May 2022 16:35:38 +01:00 irqchip/xtensa-mx: Fix initial IRQ affinity in non-SMP setup When irq-xtensa-mx chip is used in non-SMP configuration its irq_set_affinity callback is not called leaving IRQ affinity set empty. As a result IRQ delivery does not work in that configuration. Initialize IRQ affinity of the xtensa MX interrupt distributor to CPU 0 for all external IRQ lines. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220426161912.1113784-1-jcmvbkbc@gmail.com --- drivers/irqchip/irq-xtensa-mx.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/irqchip/irq-xtensa-mx.c b/drivers/irqchip/irq-xtensa-m= x.c index 2793333..8c581c9 100644 --- a/drivers/irqchip/irq-xtensa-mx.c +++ b/drivers/irqchip/irq-xtensa-mx.c @@ -151,14 +151,25 @@ static struct irq_chip xtensa_mx_irq_chip =3D { .irq_set_affinity =3D xtensa_mx_irq_set_affinity, }; =20 +static void __init xtensa_mx_init_common(struct irq_domain *root_domain) +{ + unsigned int i; + + irq_set_default_host(root_domain); + secondary_init_irq(); + + /* Initialize default IRQ routing to CPU 0 */ + for (i =3D 0; i < XCHAL_NUM_EXTINTERRUPTS; ++i) + set_er(1, MIROUT(i)); +} + int __init xtensa_mx_init_legacy(struct device_node *interrupt_parent) { struct irq_domain *root_domain =3D irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0, &xtensa_mx_irq_domain_ops, &xtensa_mx_irq_chip); - irq_set_default_host(root_domain); - secondary_init_irq(); + xtensa_mx_init_common(root_domain); return 0; } =20 @@ -168,8 +179,7 @@ static int __init xtensa_mx_init(struct device_node *np, struct irq_domain *root_domain =3D irq_domain_add_linear(np, NR_IRQS, &xtensa_mx_irq_domain_ops, &xtensa_mx_irq_chip); - irq_set_default_host(root_domain); - secondary_init_irq(); + xtensa_mx_init_common(root_domain); return 0; } IRQCHIP_DECLARE(xtensa_mx_irq_chip, "cdns,xtensa-mx", xtensa_mx_init);