From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932353AbeEHMQS (ORCPT ); Tue, 8 May 2018 08:16:18 -0400 Received: from foss.arm.com ([217.140.101.70]:57542 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932082AbeEHMPK (ORCPT ); Tue, 8 May 2018 08:15:10 -0400 From: Marc Zyngier To: Thomas Gleixner , Jason Cooper Cc: Ard Biesheuvel , Thomas Petazzoni , Miquel Raynal , Srinivas Kandagatla , Rob Herring , linux-kernel@vger.kernel.org Subject: [PATCH v2 6/9] irqchip/gic-v3: Mark the base irq domain as DOMAIN_BUS_WIRED Date: Tue, 8 May 2018 13:14:35 +0100 Message-Id: <20180508121438.11301-7-marc.zyngier@arm.com> X-Mailer: git-send-email 2.14.2 In-Reply-To: <20180508121438.11301-1-marc.zyngier@arm.com> References: <20180508121438.11301-1-marc.zyngier@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As we're about to introduce MSI domains based on top of the GICv3 domain, we must make sure nothing the new domains do not alias with the core domain. So let's tag that core domain with the DOMAIN_BUS_WIRED attribute, ensuring it gets picked up by other drivers that use irq_find_host(). Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-gic-v3.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index e5d101418390..94164d7b87a6 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -1099,6 +1099,7 @@ static int __init gic_init_bases(void __iomem *dist_base, gic_data.domain = irq_domain_create_tree(handle, &gic_irq_domain_ops, &gic_data); + irq_domain_update_bus_token(gic_data.domain, DOMAIN_BUS_WIRED); gic_data.rdists.rdist = alloc_percpu(typeof(*gic_data.rdists.rdist)); gic_data.rdists.has_vlpis = true; gic_data.rdists.has_direct_lpi = true; -- 2.14.2