linux-kernel - [tip:x86/apic] x86, mpparse, irq: Provide basic irqdomain support

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Message-ID: <tip-74501edcd846830bec86bfa06c47c25083e70ffc@git.kernel.org>
Date:	Sat, 21 Jun 2014 14:14:58 -0700
From:	tip-bot for Jiang Liu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	mingo@...nel.org, konrad.wilk@...cle.com, rdunlap@...radead.org,
	tony.luck@...el.com, gregkh@...uxfoundation.org,
	tglx@...utronix.de, hpa@...or.com, jiang.liu@...ux.intel.com,
	grant.likely@...aro.org, linux-kernel@...r.kernel.org,
	yinghai@...nel.org, joro@...tes.org, benh@...nel.crashing.org,
	bhelgaas@...gle.com, rjw@...ysocki.net,
	paul.gortmaker@...driver.com
Subject: [tip:x86/apic] x86, mpparse, irq: Provide basic irqdomain support

Commit-ID:  74501edcd846830bec86bfa06c47c25083e70ffc
Gitweb:     http://git.kernel.org/tip/74501edcd846830bec86bfa06c47c25083e70ffc
Author:     Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Mon, 9 Jun 2014 16:19:55 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Sat, 21 Jun 2014 23:05:43 +0200

x86, mpparse, irq: Provide basic irqdomain support

Enhance mpparse to provide basic support of irqdomain.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Joerg Roedel <joro@...tes.org>
Cc: Paul Gortmaker <paul.gortmaker@...driver.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Grant Likely <grant.likely@...aro.org>
Cc: Rafael J. Wysocki <rjw@...ysocki.net>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Randy Dunlap <rdunlap@...radead.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Link: http://lkml.kernel.org/r/1402302011-23642-27-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/kernel/mpparse.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index ea8595e..13c8e1f 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/smp.h>
 #include <linux/pci.h>
+#include <linux/irqdomain.h>
 
 #include <asm/mtrr.h>
 #include <asm/mpspec.h>
@@ -112,10 +113,17 @@ static void __init MP_bus_info(struct mpc_bus *m)
 		pr_warn("Unknown bustype %s - ignoring\n", str);
 }
 
+static struct irq_domain_ops mp_ioapic_irqdomain_ops;
+
 static void __init MP_ioapic_info(struct mpc_ioapic *m)
 {
+	struct ioapic_domain_cfg cfg = {
+		.type = IOAPIC_DOMAIN_LEGACY,
+		.ops = &mp_ioapic_irqdomain_ops,
+	};
+
 	if (m->flags & MPC_APIC_USABLE)
-		mp_register_ioapic(m->apicid, m->apicaddr, gsi_top, NULL);
+		mp_register_ioapic(m->apicid, m->apicaddr, gsi_top, &cfg);
 }
 
 static void __init print_mp_irq_info(struct mpc_intsrc *mp_irq)
--
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