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authorThomas Gleixner <tglx@linutronix.de>2014-05-07 19:44:13 +0400
committerThomas Gleixner <tglx@linutronix.de>2014-05-16 16:05:20 +0400
commit6ef40512c55b18f8fdf1074b2f2d7eadcd50fec7 (patch)
tree37b930d343fb86e9625799cf1c94a1009b0aceda /arch/tile
parent54859f59fc18e5c104a4095420b3fcef8bc3ae63 (diff)
downloadlinux-6ef40512c55b18f8fdf1074b2f2d7eadcd50fec7.tar.xz
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>
Diffstat (limited to 'arch/tile')
-rw-r--r--arch/tile/include/asm/irq.h3
-rw-r--r--arch/tile/kernel/irq.c12
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/tile/include/asm/irq.h b/arch/tile/include/asm/irq.h
index 33cff9a3058b..9670a39d924d 100644
--- a/arch/tile/include/asm/irq.h
+++ b/arch/tile/include/asm/irq.h
@@ -76,4 +76,7 @@ void tile_irq_activate(unsigned int irq, int tile_irq_type);
void setup_irq_regs(void);
+unsigned int irq_alloc_hwirq(int node);
+void irq_free_hwirq(unsigned int irq);
+
#endif /* _ASM_TILE_IRQ_H */
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