Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754882AbbFSItC (ORCPT ); Fri, 19 Jun 2015 04:49:02 -0400 Received: from mail-pd0-f175.google.com ([209.85.192.175]:33898 "EHLO mail-pd0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754630AbbFSIrK (ORCPT ); Fri, 19 Jun 2015 04:47:10 -0400 From: Hanjun Guo To: Marc Zyngier , Jason Cooper , Will Deacon , Catalin Marinas , "Rafael J. Wysocki" Cc: Thomas Gleixner , Jiang Liu , Lorenzo Pieralisi , Arnd Bergmann , Tomasz Nowicki , Grant Likely , Olof Johansson , Wei Huang , linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linaro-acpi@lists.linaro.org, Hanjun Guo Subject: [PATCH v2 9/9] irqchip / GICv3: Add stacked irqdomain support for ACPI based init Date: Fri, 19 Jun 2015 16:46:12 +0800 Message-Id: <1434703572-26221-10-git-send-email-hanjun.guo@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1434703572-26221-1-git-send-email-hanjun.guo@linaro.org> References: <1434703572-26221-1-git-send-email-hanjun.guo@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1887 Lines: 59 Similar as stacked domain support for ACPI based GICv2 init, let acpi_irq_domain point to the core domain of GICv3 and pass the gsi as the arg to support stacked irqdomain. Signed-off-by: Hanjun Guo --- drivers/irqchip/irq-gic-v3.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index d2eef3c..a1c4c74 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -733,15 +733,21 @@ static int gic_irq_domain_xlate(struct irq_domain *d, static int gic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs, void *arg) { - int i, ret; + int i; irq_hw_number_t hwirq; - unsigned int type = IRQ_TYPE_NONE; - struct of_phandle_args *irq_data = arg; - ret = gic_irq_domain_xlate(domain, irq_data->np, irq_data->args, - irq_data->args_count, &hwirq, &type); - if (ret) - return ret; + if (domain->of_node) { /* DT case */ + int ret; + unsigned int type = IRQ_TYPE_NONE; + struct of_phandle_args *irq_data = arg; + + ret = gic_irq_domain_xlate(domain, irq_data->np, irq_data->args, + irq_data->args_count, &hwirq, &type); + if (ret) + return ret; + } else { /* ACPI case */ + hwirq = (irq_hw_number_t)*(u32 *)arg; + } for (i = 0; i < nr_irqs; i++) gic_irq_domain_map(domain, virq + i, hwirq + i); @@ -1009,7 +1015,7 @@ gic_v3_acpi_init(struct acpi_table_header *table) if (err) goto out_redist_unmap; - irq_set_default_host(gic_data.domain); + acpi_irq_domain = gic_data.domain; return 0; out_redist_unmap: -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/