Message ID | 20221121140048.722992910@linutronix.de |
---|---|
State | New |
Headers | show
Return-Path: <linux-pci-owner@vger.kernel.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-pci-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=linutronix.de header.i=@linutronix.de header.a=rsa-sha256 header.s=2020 header.b=2xxh3n8f; dkim=pass header.d=linutronix.de header.i=@linutronix.de header.a=ed25519-sha256 header.s=2020e header.b=PCeo9bxF; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4NG9HX3rqkz23nZ for <incoming@patchwork.ozlabs.org>; Tue, 22 Nov 2022 01:48:24 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230484AbiKUOsW (ORCPT <rfc822;incoming@patchwork.ozlabs.org>); Mon, 21 Nov 2022 09:48:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33852 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231856AbiKUOqc (ORCPT <rfc822;linux-pci@vger.kernel.org>); Mon, 21 Nov 2022 09:46:32 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F368D236B; Mon, 21 Nov 2022 06:40:56 -0800 (PST) Message-ID: <20221121140048.722992910@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1669041577; 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: references:references; bh=0uPKQvIE6eHWFWTzh0P31YZRE+J5P6MvaWi2wIg9qig=; b=2xxh3n8fCQKY1tupSQrL9RMghm2CJAVDhvY/Tjdbm5UyTrZ3617loyNvTvtgNhd1HURZCG Ex96BmehgLludH3jYNj5aEgGOs3VtfcvigHKrZKPcj+QOILkhwD1zWcorhR2EQI6SmQQ5n KukieQVmKgYlUtVMunHXe/xRbloR1Epl9yYeoaU26IAVI2n/oqnJCsqZfEUyIs0/ujwyPo pZrNPN0L6CDAvMrk6b/buOWEbQOjlyfd5MmgRoRi1qpQ16QV8lOeNG/friBcWTlSuxbbJC Hopj84F9VxpGLUoQSU3abw9iD9Rfjr2mF19toJL/p/AnaCzwIr5dX5AihkVlXg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1669041577; 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: references:references; bh=0uPKQvIE6eHWFWTzh0P31YZRE+J5P6MvaWi2wIg9qig=; b=PCeo9bxFppNV9qQQ6klCeD7Y79K1FfbS6EFwmhDWSSkQCY8I3v39UhssGnoodq7GVDpqqE ZkeJvgcIGuShZNDQ== From: Thomas Gleixner <tglx@linutronix.de> To: LKML <linux-kernel@vger.kernel.org> Cc: Will Deacon <will@kernel.org>, linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Marc Zyngier <maz@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Jason Gunthorpe <jgg@mellanox.com>, Andrew Lunn <andrew@lunn.ch>, Gregory Clement <gregory.clement@bootlin.com>, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>, Ammar Faizi <ammarfaizi2@gnuweeb.org>, Robin Murphy <robin.murphy@arm.com>, Lorenzo Pieralisi <lpieralisi@kernel.org>, Nishanth Menon <nm@ti.com>, Tero Kristo <kristo@kernel.org>, Santosh Shilimkar <ssantosh@kernel.org>, linux-arm-kernel@lists.infradead.org, Vinod Koul <vkoul@kernel.org>, Sinan Kaya <okaya@kernel.org>, Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>, Zenghui Yu <yuzenghui@huawei.com>, Shawn Guo <shawnguo@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>, Fabio Estevam <festevam@gmail.com> Subject: [patch V2 07/40] irqchip/gic-v3: Make gic_irq_domain_select() robust for zero parameter count References: <20221121135653.208611233@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Date: Mon, 21 Nov 2022 15:39:37 +0100 (CET) X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-pci.vger.kernel.org> X-Mailing-List: linux-pci@vger.kernel.org |
Series |
genirq, irqchip: Convert ARM MSI handling to per device MSI domains
|
expand
|
--- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -1613,9 +1613,13 @@ static int gic_irq_domain_select(struct irq_hw_number_t hwirq; /* Not for us */ - if (fwspec->fwnode != d->fwnode) + if (fwspec->fwnode != d->fwnode) return 0; + /* Handle pure domain searches */ + if (!fwspec->param_count) + return d->bus_token == bus_token; + /* If this is not DT, then we have a single domain */ if (!is_of_node(fwspec->fwnode)) return 1;
Currently the irqdomain select callback is only invoked when the parameter count of the fwspec arguments is not zero. That makes sense because then the match is on the firmware node and eventually on the bus_token, which is already handled in the core code. The upcoming support for per device MSI domains requires to do real bus token specific checks in the MSI parent domains with a zero parameter count. Make the gic-v3 select() callback handle that case. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Marc Zyngier <maz@kernel.org> --- drivers/irqchip/irq-gic-v3.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)