diff options
| author | Con Kolivas <kernel@kolivas.org> | 2016-12-07 21:13:16 +1100 |
|---|---|---|
| committer | Con Kolivas <kernel@kolivas.org> | 2018-02-18 16:20:12 +1100 |
| commit | ec0c36ff3034ff57aec86237d670b24e34a6c1be (patch) | |
| tree | d4241a462385d6b09157d0f52e464acba9ec1e44 | |
| parent | c4bf71c5aae8205b24559b50cd9399e1215554ba (diff) | |
Make threaded IRQs optionally the default which can be disabled.
| -rw-r--r-- | kernel/irq/Kconfig | 14 | ||||
| -rw-r--r-- | kernel/irq/manage.c | 10 |
2 files changed, 24 insertions, 0 deletions
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index 89e355866450..7a2665a1c346 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -117,6 +117,20 @@ config IRQ_DOMAIN_DEBUG config IRQ_FORCED_THREADING bool +config FORCE_IRQ_THREADING + bool "Make IRQ threading compulsory" + depends on IRQ_FORCED_THREADING + default y + ---help--- + + Make IRQ threading mandatory for any IRQ handlers that support it + instead of being optional and requiring the threadirqs kernel + parameter. Instead they can be optionally disabled with the + nothreadirqs kernel parameter. + + Enable if you are building for a desktop or low latency system, + otherwise say N. + config SPARSE_IRQ bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ ---help--- diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 0f922729bab9..c2e3621d3620 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -24,7 +24,17 @@ #include "internals.h" #ifdef CONFIG_IRQ_FORCED_THREADING +#ifdef CONFIG_FORCE_IRQ_THREADING +__read_mostly bool force_irqthreads = true; +#else __read_mostly bool force_irqthreads; +#endif +static int __init setup_noforced_irqthreads(char *arg) +{ + force_irqthreads = false; + return 0; +} +early_param("nothreadirqs", setup_noforced_irqthreads); static int __init setup_forced_irqthreads(char *arg) { |