From: Ingo Molnar <mingo@elte.hu>
To: linux-kernel@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Russell King <rmk@arm.linux.org.uk>,
Andrew Morton <akpm@osdl.org>,
Christoph Hellwig <hch@infradead.org>,
linux-arm-kernel@lists.arm.linux.org.uk
Subject: [patch 27/50] genirq: ARM: dyntick quirk
Date: Wed, 17 May 2006 02:17:21 +0200 [thread overview]
Message-ID: <20060517001721.GB12877@elte.hu> (raw)
From: Thomas Gleixner <tglx@linutronix.de>
ARM dyntick quirk.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
kernel/irq/handle.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
Index: linux-genirq.q/kernel/irq/handle.c
===================================================================
--- linux-genirq.q.orig/kernel/irq/handle.c
+++ linux-genirq.q/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"
/**
@@ -105,6 +109,15 @@ int handle_IRQ_event(unsigned int irq, s
{
int ret, retval = 0, 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();
next reply other threads:[~2006-05-17 0:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-17 0:17 Ingo Molnar [this message]
2006-05-17 14:37 ` Pavel Machek
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