[PATCH 4/9] MIPS: Install handlers for software IRQs

[Kevin Cernekee <cernekee@gmail.com>]

BMIPS4350/4380/5000 CMT/SMT all use SW INT0/INT1 for inter-thread
signaling.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
---
 arch/mips/kernel/irq_cpu.c |   14 ++++++--------
 1 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/arch/mips/kernel/irq_cpu.c b/arch/mips/kernel/irq_cpu.c
index 55c8a3c..436bb2d 100644
--- a/arch/mips/kernel/irq_cpu.c
+++ b/arch/mips/kernel/irq_cpu.c
@@ -106,14 +106,12 @@ void __init mips_cpu_irq_init(void)
 	clear_c0_status(ST0_IM);
 	clear_c0_cause(CAUSEF_IP);
 
-	/*
-	 * Only MT is using the software interrupts currently, so we just
-	 * leave them uninitialized for other processors.
-	 */
-	if (cpu_has_mipsmt)
-		for (i = irq_base; i < irq_base + 2; i++)
-			set_irq_chip_and_handler(i, &mips_mt_cpu_irq_controller,
-						 handle_percpu_irq);
+	/* Software interrupts are used for MT/CMT IPI */
+	for (i = irq_base; i < irq_base + 2; i++)
+		set_irq_chip_and_handler(i, cpu_has_mipsmt ?
+					 &mips_mt_cpu_irq_controller :
+					 &mips_cpu_irq_controller,
+					 handle_percpu_irq);
 
 	for (i = irq_base + 2; i < irq_base + 8; i++)
 		set_irq_chip_and_handler(i, &mips_cpu_irq_controller,
-- 
1.7.0.4