linux-kernel - [tip:x86/apic] x86/hpet: Use new irqdomain interfaces to allocate /free IRQ

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Message-ID: <tip-bd8eb63f8a3907bb477992145cb6ce0064a1e43f@git.kernel.org>
Date:	Fri, 24 Apr 2015 08:44:05 -0700
From:	tip-bot for Jiang Liu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	gregkh@...uxfoundation.org, hpa@...or.com, konrad.wilk@...cle.com,
	mingo@...nel.org, bp@...en8.de, linux-kernel@...r.kernel.org,
	david.a.cohen@...ux.intel.com, srivatsa.bhat@...ux.vnet.ibm.com,
	rdunlap@...radead.org, tony.luck@...el.com, tglx@...utronix.de,
	joro@...tes.org, benh@...nel.crashing.org, luto@...capital.net,
	rjw@...ysocki.net, yinghai@...nel.org, david.vrabel@...rix.com,
	sivanich@....com, bhelgaas@...gle.com, jiang.liu@...ux.intel.com,
	linux@...elenboom.it
Subject: [tip:x86/apic] x86/hpet: Use new irqdomain interfaces to allocate
 /free IRQ

Commit-ID:  bd8eb63f8a3907bb477992145cb6ce0064a1e43f
Gitweb:     http://git.kernel.org/tip/bd8eb63f8a3907bb477992145cb6ce0064a1e43f
Author:     Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Mon, 13 Apr 2015 14:11:25 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 24 Apr 2015 15:36:48 +0200

x86/hpet: Use new irqdomain interfaces to allocate/free IRQ

Use new irqdomain interfaces to allocate/free IRQ for HPET, so we can
remove GENERIC_IRQ_LEGACY_ALLOC_HWIRQ later.

Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: David Cohen <david.a.cohen@...ux.intel.com>
Cc: Sander Eikelenboom <linux@...elenboom.it>
Cc: David Vrabel <david.vrabel@...rix.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Joerg Roedel <joro@...tes.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Rafael J. Wysocki <rjw@...ysocki.net>
Cc: Randy Dunlap <rdunlap@...radead.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Dimitri Sivanich <sivanich@....com>
Cc: Andy Lutomirski <luto@...capital.net>
Link: http://lkml.kernel.org/r/1416894816-23245-4-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/kernel/hpet.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 3acbff4..ae29554 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -11,6 +11,7 @@
 #include <linux/cpu.h>
 #include <linux/pm.h>
 #include <linux/io.h>
+#include <linux/irqdomain.h>
 
 #include <asm/fixmap.h>
 #include <asm/hpet.h>
@@ -476,7 +477,7 @@ static int hpet_msi_next_event(unsigned long delta,
 static int hpet_setup_msi_irq(unsigned int irq)
 {
 	if (x86_msi.setup_hpet_msi(irq, hpet_blockid)) {
-		irq_free_hwirq(irq);
+		irq_domain_free_irqs(irq, 1);
 		return -EINVAL;
 	}
 	return 0;
@@ -484,9 +485,10 @@ static int hpet_setup_msi_irq(unsigned int irq)
 
 static int hpet_assign_irq(struct hpet_dev *dev)
 {
-	unsigned int irq = irq_alloc_hwirq(-1);
+	int irq;
 
-	if (!irq)
+	irq = irq_domain_alloc_irqs(NULL, 1, NUMA_NO_NODE, NULL);
+	if (irq <= 0)
 		return -EINVAL;
 
 	irq_set_handler_data(irq, dev);
--
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