[MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irq

Further incorporation of generic irq framework.  Replacing __do_IRQ()
by proper flow handler would make the irq handling path a bit simpler
and faster.

* use generic_handle_irq() instead of __do_IRQ().
* use handle_level_irq for obvious level-type irq chips.
* use handle_percpu_irq for irqs marked as IRQ_PER_CPU.
* setup .eoi routine for irq chips possibly used with handle_percpu_irq.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/arch/mips/kernel/irq-rm9000.c b/arch/mips/kernel/irq-rm9000.c
index 977538445cf3..ba6440c88abd 100644
--- a/arch/mips/kernel/irq-rm9000.c
+++ b/arch/mips/kernel/irq-rm9000.c
@@ -117,10 +117,12 @@ void __init rm9k_cpu_irq_init(int base)
         clear_c0_intcontrol(0x0000f000);                /* Mask all */
 
         for (i = base; i < base + 4; i++)
-                set_irq_chip(i, &rm9k_irq_controller);
+                set_irq_chip_and_handler(i, &rm9k_irq_controller,
+                                         handle_level_irq);
 
         rm9000_perfcount_irq = base + 1;
-        set_irq_chip(rm9000_perfcount_irq, &rm9k_perfcounter_irq);
+        set_irq_chip_and_handler(rm9000_perfcount_irq, &rm9k_perfcounter_irq,
+                                 handle_level_irq);
 
         irq_base = base;
 }