From 6ef40512c55b18f8fdf1074b2f2d7eadcd50fec7 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 7 May 2014 15:44:13 +0000
Subject: tile: Implement irq_alloc/free_hwirq() for migration

We want to convert the drivers over to the new interface and finally
tile to sparse irqs. Implement irq_alloc/free_hwirq() for step by step
migration.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Link: http://lkml.kernel.org/r/20140507154336.947853241@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/tile/kernel/irq.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'arch/tile/kernel')

diff --git a/arch/tile/kernel/irq.c b/arch/tile/kernel/irq.c
index 906a76bdb31d..5fd197e0a2d4 100644
--- a/arch/tile/kernel/irq.c
+++ b/arch/tile/kernel/irq.c
@@ -312,4 +312,16 @@ void destroy_irq(unsigned int irq)
 	spin_unlock_irqrestore(&available_irqs_lock, flags);
 }
 EXPORT_SYMBOL(destroy_irq);
+
+unsigned int irq_alloc_hwirq(int node)
+{
+	int ret = create_irq();
+	return ret < 0 ? 0 : ret;
+}
+
+void irq_free_hwirq(unsigned int irq)
+{
+	destroy_irq(irq);
+}
+
 #endif
-- 
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