Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757391AbbLBMWW (ORCPT ); Wed, 2 Dec 2015 07:22:22 -0500 Received: from mailapp01.imgtec.com ([195.59.15.196]:41069 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754717AbbLBMWT (ORCPT ); Wed, 2 Dec 2015 07:22:19 -0500 From: Qais Yousef To: CC: , , , , , , Qais Yousef Subject: [PATCH v3 05/19] genirq: Add ipi_offset to irq_common_data Date: Wed, 2 Dec 2015 12:21:46 +0000 Message-ID: <1449058920-21011-6-git-send-email-qais.yousef@imgtec.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1449058920-21011-1-git-send-email-qais.yousef@imgtec.com> References: <1449058920-21011-1-git-send-email-qais.yousef@imgtec.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [192.168.154.94] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1318 Lines: 39 IPIs are always assumed to be consecutively allocated, hence virqs and hwirqs can be inferred by using CPU id as an offset. But the first cpu doesn't always have to start at position 0. ipi_offset stores the position of the first cpu so that we can easily calculate the virq or hwirq of an IPI associated with a specific cpu. Signed-off-by: Qais Yousef --- include/linux/irq.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/irq.h b/include/linux/irq.h index 14f1c036119c..6bcbd11207ea 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -150,6 +150,7 @@ struct ipi_mapping { * @ipi_mapping: Contains the hwirq mapping of IPIs. * The use of this struct is optional and not all irqchips * will use it. + * @ipi_offset: offset of first IPI in the mask */ struct irq_common_data { unsigned int state_use_accessors; @@ -161,6 +162,7 @@ struct irq_common_data { cpumask_var_t affinity; #ifdef CONFIG_GENERIC_IRQ_IPI struct ipi_mapping *ipi_map; + unsigned int ipi_offset; #endif }; -- 2.1.0 -- 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/