diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2012-05-25 16:59:47 +0200 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2014-01-22 09:50:41 +0000 |
| commit | 6bfbe7d9f891dc145ed395cf2b8c23b2dd9c74e8 (patch) | |
| tree | 97cb2bb7f7296719bdefe9ff092c4b75148d8975 /Documentation/kernel-parameters.txt | |
| parent | edecdef95ad50910270915aa0cdcf2f624301cac (diff) | |
genirq: Add default affinity mask command line option
If we isolate CPUs, then we don't want random device interrupts on
them. Even w/o the user space irq balancer enabled we can end up with
irqs on non boot cpus.
Allow to restrict the default irq affinity mask.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 2fe6e767b3d..a2a5f4111a3 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1240,6 +1240,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. See comment before ip2_setup() in drivers/char/ip2/ip2base.c. + irqaffinity= [SMP] Set the default irq affinity mask + Format: + <cpu number>,...,<cpu number> + or + <cpu number>-<cpu number> + (must be a positive range in ascending order) + or a mixture + <cpu number>,...,<cpu number>-<cpu number> + irqfixup [HW] When an interrupt is not handled search all handlers for it. Intended to get systems with badly broken |