From nobody Thu Sep 18 01:24:12 2025 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 A6215C4332F for ; Tue, 13 Dec 2022 14:09:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235912AbiLMOJb (ORCPT ); Tue, 13 Dec 2022 09:09:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235887AbiLMOI4 (ORCPT ); Tue, 13 Dec 2022 09:08:56 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13CF820F42 for ; Tue, 13 Dec 2022 06:08:44 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id C2E4EB811DA for ; Tue, 13 Dec 2022 14:08:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 80A5EC433D2; Tue, 13 Dec 2022 14:08:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670940521; bh=M2Je/haA40Wu9LCU1PfMEDvXGneFkuJ8iybnSPHk2oI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UxWcVgkZrWmEEJ8Ao51oMyMe+heeIkwUihFgxIgb0XlgHRs/hGIVJLR2uV9H8XQDz 6UqQMpJIgarzttGleoBAESwIMUpxmpUdiwD6CYSZA0XgMAM5o6AWnP5zwY9HrrcaAG wWstqE9uA1p3UZGVG5jzl3t3kDy4xsUkllpUnKSmYQFxKeFhogvbNQruMP5TqX9dd6 DJ8nI6WYU66GdYR24n4yaKBP8bEbuEA2eYhAgLxujnmsKl++3Cg/hIop0ZBS75cQKC dHxcoyVPrNAaQXGTYvnLo3raoDCUFQcRVlcCWWPfv3fSuw8xHje3l4aQTt7G8mxAmJ TlgBjeRHXMwaQ== Received: from johan by xi.lan with local (Exim 4.94.2) (envelope-from ) id 1p55xz-00042N-Hl; Tue, 13 Dec 2022 15:09:07 +0100 From: Johan Hovold To: Thomas Gleixner , Marc Zyngier Cc: Hector Martin , Sven Peter , Alyssa Rosenzweig , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Florian Fainelli , Broadcom internal kernel review list , Ray Jui , Scott Branden , asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, Johan Hovold Subject: [PATCH 2/2] genirq/irqdomain/msi: Add irq_domain_alloc_irqs_affinity() wrapper Date: Tue, 13 Dec 2022 15:08:44 +0100 Message-Id: <20221213140844.15470-3-johan+linaro@kernel.org> X-Mailer: git-send-email 2.37.4 In-Reply-To: <20221213140844.15470-1-johan+linaro@kernel.org> References: <20221213140844.15470-1-johan+linaro@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The full __irq_domain_alloc_irqs() interface was initially only intended for some legacy (x86) use cases while most callers should use the irq_domain_alloc_irqs() wrapper. Add a matching irq_domain_alloc_irqs_affinity() wrapper that can be used when an affinity hint needs to be provided and use it for MSI allocations. Signed-off-by: Johan Hovold --- include/linux/irqdomain.h | 15 +++++++++++++++ kernel/irq/msi.c | 6 +++--- 2 files changed, 18 insertions(+), 3 deletions(-) diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index cad47737a052..b1b06d75d31a 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -507,6 +507,14 @@ static inline int irq_domain_alloc_irqs(struct irq_dom= ain *domain, NULL); } =20 +static inline int irq_domain_alloc_irqs_affinity(struct irq_domain *domain, + unsigned int nr_irqs, int node, void *arg, + const struct irq_affinity_desc *affinity) +{ + return __irq_domain_alloc_irqs(domain, -1, nr_irqs, node, arg, false, + affinity); +} + extern int irq_domain_alloc_irqs_hierarchy(struct irq_domain *domain, unsigned int irq_base, unsigned int nr_irqs, void *arg); @@ -585,6 +593,13 @@ static inline int irq_domain_alloc_irqs(struct irq_dom= ain *domain, return -1; } =20 +static inline int irq_domain_alloc_irqs_affinity(struct irq_domain *domain, + unsigned int nr_irqs, int node, void *arg, + const struct irq_affinity_desc *affinity) +{ + return -1; +} + static inline void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs) { } =20 diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index bd4d4dd626b4..01f7f3c8d77a 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -1272,9 +1272,9 @@ static int __msi_domain_alloc_irqs(struct device *dev= , struct irq_domain *domain =20 ops->set_desc(&arg, desc); =20 - virq =3D __irq_domain_alloc_irqs(domain, -1, desc->nvec_used, - dev_to_node(dev), &arg, false, - desc->affinity); + virq =3D irq_domain_alloc_irqs_affinity(domain, desc->nvec_used, + dev_to_node(dev), &arg, + desc->affinity); if (virq < 0) return msi_handle_pci_fail(domain, desc, allocated); =20 --=20 2.37.4