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authorThomas Gleixner <tglx@linutronix.de>2007-02-16 04:27:24 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-16 11:13:56 -0500
commit950f4427c2ddc921164088a20f01304cf231437c (patch)
tree8fd3fb1ad045a47dbd2c6ac238c6ff1c1c5aa6c6 /include/linux/interrupt.h
parentb463fc60730bea6cdd73fec6edc6ec4658d47d37 (diff)
[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 @@
42 * IRQF_SHARED - allow sharing the irq among several devices 42 * IRQF_SHARED - allow sharing the irq among several devices
43 * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur 43 * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur
44 * IRQF_TIMER - Flag to mark this interrupt as timer interrupt 44 * IRQF_TIMER - Flag to mark this interrupt as timer interrupt
45 * IRQF_PERCPU - Interrupt is per cpu
46 * IRQF_NOBALANCING - Flag to exclude this interrupt from irq balancing
45 */ 47 */
46#define IRQF_DISABLED 0x00000020 48#define IRQF_DISABLED 0x00000020
47#define IRQF_SAMPLE_RANDOM 0x00000040 49#define IRQF_SAMPLE_RANDOM 0x00000040
@@ -49,6 +51,7 @@
49#define IRQF_PROBE_SHARED 0x00000100 51#define IRQF_PROBE_SHARED 0x00000100
50#define IRQF_TIMER 0x00000200 52#define IRQF_TIMER 0x00000200
51#define IRQF_PERCPU 0x00000400 53#define IRQF_PERCPU 0x00000400
54#define IRQF_NOBALANCING 0x00000800
52 55
53/* 56/*
54 * Migration helpers. Scheduled for removal in 1/2007 57 * Migration helpers. Scheduled for removal in 1/2007