From patchwork Mon Sep 12 18:32:26 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomasz Nowicki X-Patchwork-Id: 9327541 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DB47260231 for ; Mon, 12 Sep 2016 18:37:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D31A828E3A for ; Mon, 12 Sep 2016 18:37:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C7CB728E50; Mon, 12 Sep 2016 18:37:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6847F28E3A for ; Mon, 12 Sep 2016 18:37:19 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bjW58-0007PE-Ic; Mon, 12 Sep 2016 18:35:50 +0000 Received: from mail-lf0-x22a.google.com ([2a00:1450:4010:c07::22a]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bjW3E-0004tZ-W6 for linux-arm-kernel@lists.infradead.org; Mon, 12 Sep 2016 18:33:55 +0000 Received: by mail-lf0-x22a.google.com with SMTP id l131so93968315lfl.2 for ; Mon, 12 Sep 2016 11:33:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=H+xsLiyVMPxfpT8mmgZ8X4iMYYrrjpfu78qJGjE9qmI=; b=zUYUiaJ9bAXpflDMNqDnoG3//ohXQon8cqYZVdQg8gaMsKOXvPbeLe4Ve3XCFH1Oza fYBF7HjiO5aY1JKj1QERF6eiz0pLEIpIgH17GYgxjbtAYtkkrOlvL0uBuMqH/MGpsMLx VxfaI6rGSFTJBUxh9HhQ7pMV77/03nhYPX8eK84otc6DQJ8dMT1bYY6aOG4fBOPAi68Z THtxGbLFAu4vQdDLDSvdjRtxoeCyuCIahomfS4AnqVuwcaseLnAxEvONnMjfk5qwCCPk 7RRm8FbMVeY5VOTMUzdE2d864+AoqP5tocCdRLa7KsDrtaKRvx+CwcOJ6uS5xRcdFfSF jJgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=H+xsLiyVMPxfpT8mmgZ8X4iMYYrrjpfu78qJGjE9qmI=; b=aI2TP0mk5PaMhWeAVDZW0n/epPuanD/YkPQpNQFvHhPQm32aE+CROrnKlwS/RbvGTE EmP31s0zK2ue7J1/TxB+2CMH3PJoFd3l0t55zPTaqjn3BLD1n7+57MgSdhip9uOaYqzZ sAfs8KpohwSK9UpZqA5ODQ8LODqf1cf461qnPNhztQ79fzf7Gp/4SCmYkxqYDD3oY6PC 7k1l8N004JaUKxK4CFIn1ZTELmphsO6OzSHS2cy60ZyNnOtoV6lxI7p5U+4QEeHkUTW9 AkTJ9nvCk93mPmqFuvj2tW0zpnWieJXn+0uiJ28y4uRA1g/nITbM31TU6bIbZ03F+wVP SYLg== X-Gm-Message-State: AE9vXwMuNqQYiF0/sKiDx6pMC92aMxE/6lWmByG4j0TBcSerdhBPsMRyOFzizcsfwuLaAg== X-Received: by 10.25.20.79 with SMTP id k76mr1722113lfi.133.1473705210893; Mon, 12 Sep 2016 11:33:30 -0700 (PDT) Received: from localhost.localdomain ([87.116.212.139]) by smtp.gmail.com with ESMTPSA id s3sm3318460lja.49.2016.09.12.11.33.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 12 Sep 2016 11:33:30 -0700 (PDT) From: Tomasz Nowicki To: marc.zyngier@arm.com, tglx@linutronix.de, jason@lakedaemon.net, rjw@rjwysocki.net, helgaas@kernel.org, rafael@kernel.org, Lorenzo.Pieralisi@arm.com Subject: [PATCH V11 7/8] irqchip/gicv3-its: Factor out PCI-MSI part that might be reused for ACPI Date: Mon, 12 Sep 2016 20:32:26 +0200 Message-Id: <1473705147-6588-8-git-send-email-tn@semihalf.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1473705147-6588-1-git-send-email-tn@semihalf.com> References: <1473705147-6588-1-git-send-email-tn@semihalf.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160912_113353_464022_A929328A X-CRM114-Status: GOOD ( 12.95 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: graeme.gregory@linaro.org, al.stone@linaro.org, linaro-acpi@lists.linaro.org, catalin.marinas@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, okaya@codeaurora.org, linux-acpi@vger.kernel.org, robert.richter@caviumnetworks.com, hanjun.guo@linaro.org, ddaney.cavm@gmail.com, linux-pci@vger.kernel.org, shijie.huang@arm.com, Tomasz Nowicki , mw@semihalf.com, andrea.gallo@linaro.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Firmware agnostic code lands in common functions which do necessary domain initialization based on unique domain handler. DT specific code goes to DT specific init call. Signed-off-by: Tomasz Nowicki Acked-by: Marc Zyngier --- drivers/irqchip/irq-gic-v3-its-pci-msi.c | 44 +++++++++++++++++++++----------- 1 file changed, 29 insertions(+), 15 deletions(-) diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c b/drivers/irqchip/irq-gic-v3-its-pci-msi.c index aee60ed..d2c2496 100644 --- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c +++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c @@ -106,34 +106,48 @@ static struct of_device_id its_device_id[] = { {}, }; -static int __init its_pci_msi_init(void) +static int __init its_pci_msi_init_one(struct fwnode_handle *handle, + const char *name) { - struct device_node *np; struct irq_domain *parent; + parent = irq_find_matching_fwnode(handle, DOMAIN_BUS_NEXUS); + if (!parent || !msi_get_domain_info(parent)) { + pr_err("%s: Unable to locate ITS domain\n", name); + return -ENXIO; + } + + if (!pci_msi_create_irq_domain(handle, &its_pci_msi_domain_info, + parent)) { + pr_err("%s: Unable to create PCI domain\n", name); + return -ENOMEM; + } + + return 0; +} + +static int __init its_pci_of_msi_init(void) +{ + struct device_node *np; + for (np = of_find_matching_node(NULL, its_device_id); np; np = of_find_matching_node(np, its_device_id)) { if (!of_property_read_bool(np, "msi-controller")) continue; - parent = irq_find_matching_host(np, DOMAIN_BUS_NEXUS); - if (!parent || !msi_get_domain_info(parent)) { - pr_err("%s: unable to locate ITS domain\n", - np->full_name); + if (its_pci_msi_init_one(of_node_to_fwnode(np), np->full_name)) continue; - } - - if (!pci_msi_create_irq_domain(of_node_to_fwnode(np), - &its_pci_msi_domain_info, - parent)) { - pr_err("%s: unable to create PCI domain\n", - np->full_name); - continue; - } pr_info("PCI/MSI: %s domain created\n", np->full_name); } return 0; } + +static int __init its_pci_msi_init(void) +{ + its_pci_of_msi_init(); + + return 0; +} early_initcall(its_pci_msi_init);