ec8f24b7fa
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3.1 KiB
SPDX-License-Identifier: GPL-2.0-only
menu "IRQ subsystem"
Options selectable by the architecture code
Make sparse irq Kconfig switch below available
config MAY_HAVE_SPARSE_IRQ bool
Legacy support, required for itanic
config GENERIC_IRQ_LEGACY bool
Enable the generic irq autoprobe mechanism
config GENERIC_IRQ_PROBE bool
Use the generic /proc/interrupts implementation
config GENERIC_IRQ_SHOW bool
Print level/edge extra information
config GENERIC_IRQ_SHOW_LEVEL bool
Supports effective affinity mask
config GENERIC_IRQ_EFFECTIVE_AFF_MASK bool
Facility to allocate a hardware interrupt. This is legacy support
and should not be used in new code. Use irq domains instead.
config GENERIC_IRQ_LEGACY_ALLOC_HWIRQ bool
Support for delayed migration from interrupt context
config GENERIC_PENDING_IRQ bool
Support for generic irq migrating off cpu before the cpu is offline.
config GENERIC_IRQ_MIGRATION bool
Alpha specific irq affinity mechanism
config AUTO_IRQ_AFFINITY bool
Tasklet based software resend for pending interrupts on enable_irq()
config HARDIRQS_SW_RESEND bool
Preflow handler support for fasteoi (sparc64)
config IRQ_PREFLOW_FASTEOI bool
Edge style eoi based handler (cell)
config IRQ_EDGE_EOI_HANDLER bool
Generic configurable interrupt chip implementation
config GENERIC_IRQ_CHIP bool select IRQ_DOMAIN
Generic irq_domain hw <--> linux irq number translation
config IRQ_DOMAIN bool
Support for simulated interrupts
config IRQ_SIM bool select IRQ_WORK
Support for hierarchical irq domains
config IRQ_DOMAIN_HIERARCHY bool select IRQ_DOMAIN
Support for hierarchical fasteoi+edge and fasteoi+level handlers
config IRQ_FASTEOI_HIERARCHY_HANDLERS bool
Generic IRQ IPI support
config GENERIC_IRQ_IPI bool
Generic MSI interrupt support
config GENERIC_MSI_IRQ bool
Generic MSI hierarchical interrupt domain support
config GENERIC_MSI_IRQ_DOMAIN bool select IRQ_DOMAIN_HIERARCHY select GENERIC_MSI_IRQ
config IRQ_MSI_IOMMU bool
config HANDLE_DOMAIN_IRQ bool
config IRQ_TIMINGS bool
config GENERIC_IRQ_MATRIX_ALLOCATOR bool
config GENERIC_IRQ_RESERVATION_MODE bool
Support forced irq threading
config IRQ_FORCED_THREADING bool
config SPARSE_IRQ bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ ---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.
config GENERIC_IRQ_DEBUGFS bool "Expose irq internals in debugfs" depends on DEBUG_FS default n ---help---
Exposes internal state information through debugfs. Mostly for
developers and debugging of hard to diagnose interrupt problems.
If you don't know what to do here, say N.
endmenu
config GENERIC_IRQ_MULTI_HANDLER bool help Allow to specify the low level IRQ handler at run time.