151a535171
kernel/irq/ipi.c otherwise fails to compile if nothing else
selects it.
Fixes: 379b656446 ("genirq: Add GENERIC_IRQ_IPI Kconfig symbol")
Reported-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201015101222.GA32747@amd
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
Interrupt injection mechanism
config GENERIC_IRQ_INJECTION bool
Tasklet based software resend for pending interrupts on enable_irq()
config HARDIRQS_SW_RESEND 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 select IRQ_DOMAIN
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 select IRQ_DOMAIN_HIERARCHY
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 select GENERIC_IRQ_INJECTION 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.