From: Thomas Gleixner <tglx@linutronix.de>
Date: Sat, 1 Jul 2006 21:30:07 +0000 (+0100)
Subject: [ARM] 3679/1: ARM: Make ARM dyntick implementation work with genirq
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a2166abd06e7a9fd34eb18b7b27da18c6146e6ef;p=linux-beck.git

[ARM] 3679/1: ARM: Make ARM dyntick implementation work with genirq

Patch from Thomas Gleixner

From: Thomas Gleixner <tglx@linutronix.de>

Make the ARM dyntick implementation work with the generic
irq code. This hopefully goes away once we consolidated the
dyntick implementations.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 5a360dd4331b..961b87591731 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -16,6 +16,10 @@
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 
+#if defined(CONFIG_NO_IDLE_HZ) && defined(CONFIG_ARM)
+#include <asm/dyntick.h>
+#endif
+
 #include "internals.h"
 
 /**
@@ -113,6 +117,15 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct pt_regs *regs,
 	irqreturn_t ret, retval = IRQ_NONE;
 	unsigned int status = 0;
 
+#if defined(CONFIG_NO_IDLE_HZ) && defined(CONFIG_ARM)
+	if (!(action->flags & SA_TIMER) && system_timer->dyn_tick != NULL) {
+		write_seqlock(&xtime_lock);
+		if (system_timer->dyn_tick->state & DYN_TICK_ENABLED)
+			system_timer->dyn_tick->handler(irq, 0, regs);
+		write_sequnlock(&xtime_lock);
+	}
+#endif
+
 	if (!(action->flags & SA_INTERRUPT))
 		local_irq_enable();