RT-MIPS-Loongson-Un-thread-cascade-interrupts.patch

From 25daa0f628cf5542204f0c5f8798206d43b730c0 Mon Sep 17 00:00:00 2001
From: Wu Zhangjin <wuzhangjin@gmail.com>
Date: Wed, 10 Mar 2010 02:03:26 +0800
Subject: [PATCH] RT: MIPS: Loongson: Un-thread cascade interrupts

commit 25daa0f628cf5542204f0c5f8798206d43b730c0 in tip.

There are two cascade interrupts in Loongson machines, one for bonito
northbridge, another for the 8259A controller in the southbridge.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>

diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c
index 320e937..3844258 100644
--- a/arch/mips/loongson/fuloong-2e/irq.c
+++ b/arch/mips/loongson/fuloong-2e/irq.c
@@ -42,6 +42,7 @@ asmlinkage void mach_irq_dispatch(unsigned int pending)
 static struct irqaction cascade_irqaction = {
 	.handler = no_action,
 	.name = "cascade",
+	.flags = IRQF_NODELAY,
 };
 
 void __init set_irq_trigger_mode(void)
diff --git a/arch/mips/loongson/lemote-2f/irq.c b/arch/mips/loongson/lemote-2f/irq.c
index 882dfcd..6387510 100644
--- a/arch/mips/loongson/lemote-2f/irq.c
+++ b/arch/mips/loongson/lemote-2f/irq.c
@@ -106,12 +106,13 @@ static irqreturn_t ip6_action(int cpl, void *dev_id)
 struct irqaction ip6_irqaction = {
 	.handler = ip6_action,
 	.name = "cascade",
-	.flags = IRQF_SHARED,
+	.flags = IRQF_SHARED | IRQF_NODELAY,
 };
 
 struct irqaction cascade_irqaction = {
 	.handler = no_action,
 	.name = "cascade",
+	.flags = IRQF_NODELAY,
 };
 
 void __init mach_init_irq(void)
-- 
1.7.1.1