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Commit 6ef40512 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

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: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarGrant Likely <grant.likely@linaro.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Acked-by: default avatarChris Metcalf <cmetcalf@tilera.com>
Link: http://lkml.kernel.org/r/20140507154336.947853241@linutronix.de


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 54859f59

arch/tile/include/asm/irq.h

+3 −0
Original line number Diff line number Diff line
@@ -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 */

arch/tile/kernel/irq.c

+12 −0
Original line number Diff line number Diff line
@@ -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