2010-09-27 12:45:59 +00:00
|
|
|
menu "IRQ subsystem"
|
|
|
|
|
# Options selectable by the architecture code
|
2011-03-08 18:52:55 +00:00
|
|
|
|
|
|
|
|
# Make sparse irq Kconfig switch below available
|
2012-01-26 02:02:40 +00:00
|
|
|
config MAY_HAVE_SPARSE_IRQ
|
2011-02-17 13:39:05 +00:00
|
|
|
bool
|
2010-09-27 12:45:59 +00:00
|
|
|
|
2011-03-08 18:52:55 +00:00
|
|
|
# Enable the generic irq autoprobe mechanism
|
2010-09-27 12:45:59 +00:00
|
|
|
config GENERIC_IRQ_PROBE
|
2011-02-17 13:39:05 +00:00
|
|
|
bool
|
2010-09-27 12:45:59 +00:00
|
|
|
|
2011-03-08 18:52:55 +00:00
|
|
|
# Use the generic /proc/interrupts implementation
|
2010-12-16 16:21:47 +00:00
|
|
|
config GENERIC_IRQ_SHOW
|
2011-02-17 13:39:05 +00:00
|
|
|
bool
|
2010-12-16 16:21:47 +00:00
|
|
|
|
2011-03-25 15:48:50 +00:00
|
|
|
# Print level/edge extra information
|
|
|
|
|
config GENERIC_IRQ_SHOW_LEVEL
|
|
|
|
|
bool
|
|
|
|
|
|
2011-03-08 18:52:55 +00:00
|
|
|
# Support for delayed migration from interrupt context
|
2010-09-27 12:45:59 +00:00
|
|
|
config GENERIC_PENDING_IRQ
|
2011-02-17 13:39:05 +00:00
|
|
|
bool
|
2010-09-27 12:45:59 +00:00
|
|
|
|
2011-03-08 18:52:55 +00:00
|
|
|
# Alpha specific irq affinity mechanism
|
2010-09-27 12:45:59 +00:00
|
|
|
config AUTO_IRQ_AFFINITY
|
2011-02-17 13:39:05 +00:00
|
|
|
bool
|
2010-09-27 12:45:59 +00:00
|
|
|
|
2011-03-08 18:52:55 +00:00
|
|
|
# Tasklet based software resend for pending interrupts on enable_irq()
|
2010-09-27 12:45:59 +00:00
|
|
|
config HARDIRQS_SW_RESEND
|
2011-02-17 13:39:05 +00:00
|
|
|
bool
|
2010-09-27 12:45:59 +00:00
|
|
|
|
2011-03-08 18:52:55 +00:00
|
|
|
# Preflow handler support for fasteoi (sparc64)
|
2011-02-10 14:14:20 +00:00
|
|
|
config IRQ_PREFLOW_FASTEOI
|
2011-02-17 13:39:05 +00:00
|
|
|
bool
|
2011-02-10 14:14:20 +00:00
|
|
|
|
2011-03-28 14:13:24 +00:00
|
|
|
# Edge style eoi based handler (cell)
|
|
|
|
|
config IRQ_EDGE_EOI_HANDLER
|
|
|
|
|
bool
|
|
|
|
|
|
2011-05-02 16:16:22 +00:00
|
|
|
# Generic configurable interrupt chip implementation
|
|
|
|
|
config GENERIC_IRQ_CHIP
|
|
|
|
|
bool
|
|
|
|
|
|
2011-07-26 09:19:06 +00:00
|
|
|
# Generic irq_domain hw <--> linux irq number translation
|
|
|
|
|
config IRQ_DOMAIN
|
|
|
|
|
bool
|
|
|
|
|
|
2012-03-29 20:10:30 +00:00
|
|
|
config IRQ_DOMAIN_DEBUG
|
|
|
|
|
bool "Expose hardware/virtual IRQ mapping via debugfs"
|
|
|
|
|
depends on IRQ_DOMAIN && DEBUG_FS
|
|
|
|
|
help
|
|
|
|
|
This option will show the mapping relationship between hardware irq
|
|
|
|
|
numbers and Linux irq numbers. The mapping is exposed via debugfs
|
2012-04-10 12:25:42 +00:00
|
|
|
in the file "irq_domain_mapping".
|
2012-03-29 20:10:30 +00:00
|
|
|
|
|
|
|
|
If you don't know what this means you don't need it.
|
|
|
|
|
|
2011-03-08 18:52:55 +00:00
|
|
|
# Support forced irq threading
|
2011-02-23 23:52:23 +00:00
|
|
|
config IRQ_FORCED_THREADING
|
|
|
|
|
bool
|
|
|
|
|
|
2010-09-27 12:45:59 +00:00
|
|
|
config SPARSE_IRQ
|
2012-01-26 02:02:40 +00:00
|
|
|
bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ
|
2010-09-27 12:45:59 +00:00
|
|
|
---help---
|
|
|
|
|
|
|
|
|
|
Sparse irq numbering is useful for distro kernels that want
|
|
|
|
|
to define a high CONFIG_NR_CPUS value but still want to have
|
|
|
|
|
low kernel memory footprint on smaller machines.
|
|
|
|
|
|
|
|
|
|
( Sparse irqs can also be beneficial on NUMA boxes, as they spread
|
|
|
|
|
out the interrupt descriptors in a more NUMA-friendly way. )
|
|
|
|
|
|
|
|
|
|
If you don't know what to do here, say N.
|
|
|
|
|
|
|
|
|
|
endmenu
|
