From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760349AbZEHANk (ORCPT ); Thu, 7 May 2009 20:13:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755349AbZEHAKE (ORCPT ); Thu, 7 May 2009 20:10:04 -0400 Received: from adsl-76-233-236-102.dsl.pltn13.sbcglobal.net ([76.233.236.102]:52703 "EHLO abulafia.goop.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753391AbZEHAJz (ORCPT ); Thu, 7 May 2009 20:09:55 -0400 From: Jeremy Fitzhardinge To: Ingo Molnar Cc: the arch/x86 maintainers , Linux Kernel Mailing List , Xen-devel , Jeremy Fitzhardinge , Jeremy Fitzhardinge Subject: [PATCH 05/18] x86/io_apic: add get_nr_irqs_gsi() Date: Thu, 7 May 2009 14:14:30 -0700 Message-Id: <1241730883-4917-6-git-send-email-jeremy@goop.org> X-Mailer: git-send-email 1.6.0.6 In-Reply-To: <1241730883-4917-1-git-send-email-jeremy@goop.org> References: <1241730883-4917-1-git-send-email-jeremy@goop.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jeremy Fitzhardinge Impact: new interface to get max GSI Add get_nr_irqs_gsi() to return nr_irqs_gsi. Xen will use this to determine how many irqs it needs to reserve for hardware irqs. Signed-off-by: Jeremy Fitzhardinge Reviewed-by: "H. Peter Anvin" --- arch/x86/include/asm/io_apic.h | 1 + arch/x86/kernel/apic/io_apic.c | 5 +++++ 2 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h index 894ffb8..2dbc1e9 100644 --- a/arch/x86/include/asm/io_apic.h +++ b/arch/x86/include/asm/io_apic.h @@ -172,6 +172,7 @@ extern void reinit_intr_remapped_IO_APIC(int intr_remapping, #endif extern void probe_nr_irqs_gsi(void); +extern int get_nr_irqs_gsi(void); extern int setup_ioapic_entry(int apic, int irq, struct IO_APIC_route_entry *entry, diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index c8240f7..5a6a29a 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3894,6 +3894,11 @@ void __init probe_nr_irqs_gsi(void) printk(KERN_DEBUG "nr_irqs_gsi: %d\n", nr_irqs_gsi); } +int get_nr_irqs_gsi(void) +{ + return nr_irqs_gsi; +} + #ifdef CONFIG_SPARSE_IRQ int __init arch_probe_nr_irqs(void) { -- 1.6.0.6