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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>
This commit is contained in:
Thomas Gleixner 2014-05-07 15:44:13 +00:00
parent 54859f59fc
commit 6ef40512c5
2 changed files with 15 additions and 0 deletions
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3
arch/tile/include/asm/irq.h
View File

@ -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 */

12
arch/tile/kernel/irq.c
View File

@ -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