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authorThomas Gleixner <tglx@linutronix.de>2007-02-16 12:27:24 +0300
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-16 19:13:56 +0300
commit950f4427c2ddc921164088a20f01304cf231437c (patch)
tree8fd3fb1ad045a47dbd2c6ac238c6ff1c1c5aa6c6 /include/linux/interrupt.h
parentb463fc60730bea6cdd73fec6edc6ec4658d47d37 (diff)
downloadlinux-950f4427c2ddc921164088a20f01304cf231437c.tar.xz
[PATCH] Add irq flag to disable balancing for an interrupt
Add a flag so we can prevent the irq balancing of an interrupt. Move the bits, so we have room for more :) Necessary for the ability to setup clocksources more flexible (e.g. use the different HPET channels per CPU) Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/interrupt.h')
-rw-r--r--include/linux/interrupt.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 5a8ba0b8ccba..690113d07698 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -42,6 +42,8 @@
* IRQF_SHARED - allow sharing the irq among several devices
* IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur
* IRQF_TIMER - Flag to mark this interrupt as timer interrupt
+ * IRQF_PERCPU - Interrupt is per cpu
+ * IRQF_NOBALANCING - Flag to exclude this interrupt from irq balancing
*/
#define IRQF_DISABLED 0x00000020
#define IRQF_SAMPLE_RANDOM 0x00000040
@@ -49,6 +51,7 @@
#define IRQF_PROBE_SHARED 0x00000100
#define IRQF_TIMER 0x00000200
#define IRQF_PERCPU 0x00000400
+#define IRQF_NOBALANCING 0x00000800
/*
* Migration helpers. Scheduled for removal in 1/2007