From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753831AbbJFRj1 (ORCPT ); Tue, 6 Oct 2015 13:39:27 -0400 Received: from foss.arm.com ([217.140.101.70]:53949 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752574AbbJFRhE (ORCPT ); Tue, 6 Oct 2015 13:37:04 -0400 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 10/16] acpi/gsi: Add acpi_set_irq_model to initialize the GSI layer Date: Tue, 6 Oct 2015 18:36:23 +0100 Message-Id: <1444152989-31726-11-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-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In order to start embrassing irqdomains at the GSI level, introduce a new initializer: void acpi_set_irq_model(enum acpi_irq_model_id model, struct fwnode_handle *fwnode); where: - model is the value assigned to acpi_irq_model - fwnode is the identifier for the irqdomain mapping GSI interrupts As nobody calls this code yet, the current code is (mostly) left in place. Signed-off-by: Marc Zyngier Conflicts: include/linux/acpi.h --- drivers/acpi/gsi.c | 32 +++++++++++++++++++++++++++----- include/linux/acpi.h | 3 +++ 2 files changed, 30 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/gsi.c b/drivers/acpi/gsi.c index 2c39fe1..202a8fe 100644 --- a/drivers/acpi/gsi.c +++ b/drivers/acpi/gsi.c @@ -75,12 +75,21 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, { unsigned int irq; unsigned int irq_type = acpi_gsi_get_irq_type(trigger, polarity); - struct irq_domain *d = irq_find_matching_fwnode(acpi_gsi_domain_id, - DOMAIN_BUS_ANY); - irq = irq_create_mapping(d, gsi); - if (!irq) - return -EINVAL; + if (acpi_gsi_domain_id) { + struct irq_fwspec fwspec; + + fwspec.fwnode = acpi_gsi_domain_id; + fwspec.param[0] = gsi; + fwspec.param[1] = irq_type; + fwspec.param_count = 2; + + return irq_create_fwspec_mapping(&fwspec); + } else { + irq = irq_create_mapping(NULL, gsi); + if (!irq) + return -EINVAL; + } /* Set irq type if specified and different than the current one */ if (irq_type != IRQ_TYPE_NONE && @@ -103,3 +112,16 @@ void acpi_unregister_gsi(u32 gsi) irq_dispose_mapping(irq); } EXPORT_SYMBOL_GPL(acpi_unregister_gsi); + +/** + * acpi_set_irq_model - Setup the GSI irqdomain information + * @model: the value assigned to acpi_irq_model + * @fwnode: the irq_domain identifier for mapping and looking up + * GSI interrupts + */ +void __init acpi_set_irq_model(enum acpi_irq_model_id model, + struct fwnode_handle *fwnode) +{ + acpi_irq_model = model; + acpi_gsi_domain_id = fwnode; +} diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 43856d1..d863e12 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -201,6 +201,9 @@ int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); +void acpi_set_irq_model(enum acpi_irq_model_id model, + struct fwnode_handle *fwnode); + #ifdef CONFIG_X86_IO_APIC extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); #else -- 2.1.4