From patchwork Tue Mar 30 08:07:14 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Eric W. Biederman" X-Patchwork-Id: 89220 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o2U88AMI002015 for ; Tue, 30 Mar 2010 08:08:10 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755620Ab0C3IHd (ORCPT ); Tue, 30 Mar 2010 04:07:33 -0400 Received: from out01.mta.xmission.com ([166.70.13.231]:36281 "EHLO out01.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754926Ab0C3IH3 (ORCPT ); Tue, 30 Mar 2010 04:07:29 -0400 Received: from in02.mta.xmission.com ([166.70.13.52]) by out01.mta.xmission.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1NwWTw-0001JH-OZ; Tue, 30 Mar 2010 02:07:28 -0600 Received: from c-76-21-114-89.hsd1.ca.comcast.net ([76.21.114.89] helo=fess.ebiederm.org) by in02.mta.xmission.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1NwWTw-0007H1-EX; Tue, 30 Mar 2010 02:07:28 -0600 Received: from fess.ebiederm.org (localhost [127.0.0.1]) by fess.ebiederm.org (8.14.3/8.14.3/Debian-4) with ESMTP id o2U87PkR007119; Tue, 30 Mar 2010 01:07:25 -0700 Received: (from eric@localhost) by fess.ebiederm.org (8.14.3/8.14.3/Submit) id o2U87Ppi007118; Tue, 30 Mar 2010 01:07:25 -0700 From: "Eric W. Biederman" To: "H. Peter Anvin" Cc: Thomas Gleixner , Ingo Molnar , Andrew Morton , Jesse Barnes , linux-kernel@vger.kernel.org, Thomas Renninger , Suresh Siddha , len.brown@intel.com, Tony Luck , Fenghua Yu , linux-acpi@vger.kernel.org, Iranna D Ankad , Gary Hade , Natalie Protasevich , "Eric W. Biederman" Subject: [PATCH 13/15] x86 ioapic: Simplify probe_nr_irqs_gsi. Date: Tue, 30 Mar 2010 01:07:14 -0700 Message-Id: <1269936436-7039-13-git-send-email-ebiederm@xmission.com> X-Mailer: git-send-email 1.6.5.2.143.g8cc62 In-Reply-To: References: X-XM-SPF: eid=; ; ; mid=; ; ; hst=in02.mta.xmission.com; ; ; ip=76.21.114.89; ; ; frm=ebiederm@xmission.com; ; ; spf=neutral X-SA-Exim-Connect-IP: 76.21.114.89 X-SA-Exim-Rcpt-To: hpa@zytor.com, tglx@linutronix.de, mingo@elte.hu, akpm@linux-foundation.org, jbarnes@virtuousgeek.org, linux-kernel@vger.kernel.org, trenn@suse.de, suresh.b.siddha@intel.com, len.brown@intel.com, tony.luck@intel.com, fenghua.yu@intel.com, linux-acpi@vger.kernel.org, iranna.ankad@in.ibm.com, garyhade@us.ibm.com, protasnb@gmail.com, ebiederm@xmission.com X-SA-Exim-Mail-From: ebiederm@xmission.com X-SA-Exim-Scanned: No (on in02.mta.xmission.com); SAEximRunCond expanded to false Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Tue, 30 Mar 2010 08:08:10 +0000 (UTC) diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h index 29994f0..c82868e 100644 --- a/arch/x86/include/asm/mpspec.h +++ b/arch/x86/include/asm/mpspec.h @@ -105,12 +105,6 @@ extern void mp_config_acpi_legacy_irqs(void); struct device; extern int mp_register_gsi(struct device *dev, u32 gsi, int edge_level, int active_high_low); -extern int acpi_probe_gsi(void); -#else /* !CONFIG_ACPI: */ -static inline int acpi_probe_gsi(void) -{ - return 0; -} #endif /* CONFIG_ACPI */ #define PHYSID_ARRAY_SIZE BITS_TO_LONGS(MAX_APICS) diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 9c48e99..0e514a1 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -875,29 +875,6 @@ static int __init acpi_parse_madt_lapic_entries(void) extern int es7000_plat; #endif -int __init acpi_probe_gsi(void) -{ - int idx; - int gsi; - int max_gsi = 0; - - if (acpi_disabled) - return 0; - - if (!acpi_ioapic) - return 0; - - max_gsi = 0; - for (idx = 0; idx < nr_ioapics; idx++) { - gsi = mp_gsi_routing[idx].gsi_end; - - if (gsi > max_gsi) - max_gsi = gsi; - } - - return max_gsi + 1; -} - static void assign_to_mp_irq(struct mpc_intsrc *m, struct mpc_intsrc *mp_irq) { diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 764c74c..6d6def8 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3841,22 +3841,11 @@ int __init io_apic_get_redir_entries (int ioapic) void __init probe_nr_irqs_gsi(void) { - int nr = 0; + int nr; - nr = acpi_probe_gsi(); - if (nr > nr_irqs_gsi) { + nr = gsi_end + 1; + if (nr > nr_irqs_gsi) nr_irqs_gsi = nr; - } else { - /* for acpi=off or acpi is not compiled in */ - int idx; - - nr = 0; - for (idx = 0; idx < nr_ioapics; idx++) - nr += io_apic_get_redir_entries(idx); - - if (nr > nr_irqs_gsi) - nr_irqs_gsi = nr; - } printk(KERN_DEBUG "nr_irqs_gsi: %d\n", nr_irqs_gsi); }