From patchwork Tue Oct 6 17:36:19 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 7338611 Return-Path: X-Original-To: patchwork-linux-acpi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 0391FBF90C for ; Tue, 6 Oct 2015 17:40:46 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 10E3E204D1 for ; Tue, 6 Oct 2015 17:40:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 679962069A for ; Tue, 6 Oct 2015 17:40:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752776AbbJFRkX (ORCPT ); Tue, 6 Oct 2015 13:40:23 -0400 Received: from foss.arm.com ([217.140.101.70]:53907 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752689AbbJFRgy (ORCPT ); Tue, 6 Oct 2015 13:36:54 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4542E5DD; Tue, 6 Oct 2015 10:36:54 -0700 (PDT) Received: from approximate.cambridge.arm.com (approximate.cambridge.arm.com [10.1.209.125]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E64BB3F487; Tue, 6 Oct 2015 10:36:51 -0700 (PDT) From: Marc Zyngier To: Thomas Gleixner , Jiang Liu , Jason Cooper , "Rafael J. Wysocki" Cc: , , , Lorenzo Pieralisi , Tomasz Nowicki , Hanjun Guo , Suravee Suthikulpanit , Graeme Gregory , Jake Oshins Subject: [PATCH 06/16] irqdomain: Introduce irq_create_fwspec_mapping Date: Tue, 6 Oct 2015 18:36:19 +0100 Message-Id: <1444152989-31726-7-git-send-email-marc.zyngier@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1444152989-31726-1-git-send-email-marc.zyngier@arm.com> References: <1444152989-31726-1-git-send-email-marc.zyngier@arm.com> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Just like we have irq_create_of_mapping, irq_create_fwspec_mapping creates a IRQ domain mapping for an interrupt described in a struct irq_fwspec. irq_create_of_mapping gets rewritten in terms of the new function, and the hack we introduced before gets removed (now that no stacked irqchip uses of_phandle_args anymore). Signed-off-by: Marc Zyngier --- include/linux/irqdomain.h | 1 + kernel/irq/irqdomain.c | 30 +++++++++++++++--------------- 2 files changed, 16 insertions(+), 15 deletions(-) diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 533c974..7e7842e 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -267,6 +267,7 @@ extern void irq_domain_disassociate(struct irq_domain *domain, extern unsigned int irq_create_mapping(struct irq_domain *host, irq_hw_number_t hwirq); +extern unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec); extern void irq_dispose_mapping(unsigned int virq); /** diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 3f07055..2adc84e 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -514,37 +514,28 @@ static void of_phandle_args_to_fwspec(struct of_phandle_args *irq_data, fwspec->param[i] = irq_data->args[i]; } -unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data) +unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec) { - struct irq_fwspec fwspec; struct irq_domain *domain; irq_hw_number_t hwirq; unsigned int type = IRQ_TYPE_NONE; int virq; - of_phandle_args_to_fwspec(irq_data, &fwspec); - - if (fwspec.fwnode) - domain = irq_find_matching_fwnode(fwspec.fwnode, DOMAIN_BUS_ANY); + if (fwspec->fwnode) + domain = irq_find_matching_fwnode(fwspec->fwnode, DOMAIN_BUS_ANY); else domain = irq_default_domain; if (!domain) { pr_warn("no irq domain found for %s !\n", - of_node_full_name(to_of_node(fwspec.fwnode))); + of_node_full_name(to_of_node(fwspec->fwnode))); return 0; } - if (irq_domain_translate(domain, &fwspec, &hwirq, &type)) + if (irq_domain_translate(domain, fwspec, &hwirq, &type)) return 0; if (irq_domain_is_hierarchy(domain)) { - /* Temporary hack */ - void *desc = &fwspec; -#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY - if (!domain->ops->translate) - desc = irq_data; -#endif /* * If we've already configured this interrupt, * don't do it again, or hell will break loose. @@ -553,7 +544,7 @@ unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data) if (virq) return virq; - virq = irq_domain_alloc_irqs(domain, 1, NUMA_NO_NODE, desc); + virq = irq_domain_alloc_irqs(domain, 1, NUMA_NO_NODE, fwspec); if (virq <= 0) return 0; } else { @@ -569,6 +560,15 @@ unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data) irq_set_irq_type(virq, type); return virq; } +EXPORT_SYMBOL_GPL(irq_create_fwspec_mapping); + +unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data) +{ + struct irq_fwspec fwspec; + + of_phandle_args_to_fwspec(irq_data, &fwspec); + return irq_create_fwspec_mapping(&fwspec); +} EXPORT_SYMBOL_GPL(irq_create_of_mapping); /**