From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762591Ab2FVQPM (ORCPT ); Fri, 22 Jun 2012 12:15:12 -0400 Received: from smtp02.citrix.com ([66.165.176.63]:57722 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762512Ab2FVQPI (ORCPT ); Fri, 22 Jun 2012 12:15:08 -0400 X-IronPort-AV: E=Sophos;i="4.77,459,1336363200"; d="scan'208";a="199722624" From: Stefano Stabellini To: CC: , , , , Stefano Stabellini Subject: [PATCH WIP 6/6] xen/arm: enable evtchn irqs Date: Fri, 22 Jun 2012 17:14:45 +0100 Message-ID: <1340381685-22529-6-git-send-email-stefano.stabellini@eu.citrix.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1340381685-22529-1-git-send-email-stefano.stabellini@eu.citrix.com> References: <1340381685-22529-1-git-send-email-stefano.stabellini@eu.citrix.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On ARM irqs are not enabled by default: - call enable_percpu_irq for IRQ_EVTCHN_CALLBACK; - set the IRQF_VALID flag for the other irqs bound to evtchns. It causes IRQ_NOAUTOEN to be set and as a consequence irq_unmask is going to be called when a xenbus driver calls request_irq. Signed-off-by: Stefano Stabellini --- drivers/xen/events.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 0132505..ca92755 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -53,6 +53,7 @@ #include #include #include +#include /* * This lock protects updates to the following mapping and reference-count @@ -827,6 +828,7 @@ int bind_evtchn_to_irq(unsigned int evtchn) xen_irq_info_evtchn_init(irq, evtchn); } + set_irq_flags(irq, IRQF_VALID); out: mutex_unlock(&irq_mapping_update_lock); @@ -1751,6 +1753,7 @@ int __init xen_init_IRQ_arm(void) if (rc) { printk(KERN_ERR "Error requesting IRQ %d\n", IRQ_EVTCHN_CALLBACK); } + enable_percpu_irq(IRQ_EVTCHN_CALLBACK, 0); return rc; } core_initcall(xen_init_IRQ_arm); -- 1.7.2.5