# SPDX-License-Identifier: GPL-2.0-onlymenu "IRQ subsystem"# Options selectable by the architecture code # Make sparse irq Kconfig switch below availableconfig MAY_HAVE_SPARSE_IRQ       bool # Enable the generic irq autoprobe mechanismconfig GENERIC_IRQ_PROBE	bool # Use the generic /proc/interrupts implementationconfig GENERIC_IRQ_SHOW       bool # Print level/edge extra informationconfig GENERIC_IRQ_SHOW_LEVEL       bool # Supports effective affinity maskconfig GENERIC_IRQ_EFFECTIVE_AFF_MASK       depends on SMP       bool # Support for delayed migration from interrupt contextconfig 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 mechanismconfig AUTO_IRQ_AFFINITY       bool # Interrupt injection mechanismconfig GENERIC_IRQ_INJECTION	bool # Tasklet based software resend for pending interrupts on enable_irq()config HARDIRQS_SW_RESEND       bool # Generic configurable interrupt chip implementationconfig GENERIC_IRQ_CHIP       bool       select IRQ_DOMAIN # Generic irq_domain hw <--> linux irq number translationconfig IRQ_DOMAIN	bool # Support for simulated interruptsconfig IRQ_SIM	bool	select IRQ_WORK	select IRQ_DOMAIN # Support for hierarchical irq domainsconfig IRQ_DOMAIN_HIERARCHY	bool	select IRQ_DOMAIN # Support for obsolete non-mapping irq domainsconfig IRQ_DOMAIN_NOMAP	bool	select IRQ_DOMAIN # Support for hierarchical fasteoi+edge and fasteoi+level handlersconfig IRQ_FASTEOI_HIERARCHY_HANDLERS	bool # Generic IRQ IPI supportconfig GENERIC_IRQ_IPI	bool	depends on SMP	select IRQ_DOMAIN_HIERARCHY # Generic IRQ IPI Mux supportconfig GENERIC_IRQ_IPI_MUX	bool	depends on SMP # Generic MSI hierarchical interrupt domain supportconfig GENERIC_MSI_IRQ	bool	select IRQ_DOMAIN_HIERARCHY # irqchip drivers should select this if they call iommu_dma_prepare_msi()config IRQ_MSI_IOMMU	bool config GENERIC_IRQ_MATRIX_ALLOCATOR	bool config GENERIC_IRQ_RESERVATION_MODE	bool # Snapshot for interrupt statisticsconfig GENERIC_IRQ_STAT_SNAPSHOT	bool # Support forced irq threadingconfig 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. # Clear forwarded VM interrupts during kexec.# This option ensures the kernel clears active states for interrupts# forwarded to virtual machines (VMs) during a machine kexec.config GENERIC_IRQ_KEXEC_CLEAR_VM_FORWARD	bool config IRQ_KUNIT_TEST	bool "KUnit tests for IRQ management APIs" if !KUNIT_ALL_TESTS	depends on KUNIT=y	depends on SPARSE_IRQ	default KUNIT_ALL_TESTS	select IRQ_DOMAIN	imply SMP	help	  This option enables KUnit tests for the IRQ subsystem API. These are	  only for development and testing, not for regular kernel use cases. 	  If unsure, say N. endmenu config GENERIC_IRQ_MULTI_HANDLER	bool	help	  Allow to specify the low level IRQ handler at run time. # Cavium Octeon is the last system to use this deprecated option# Do not even think of enabling this on any new platformconfig DEPRECATED_IRQ_CPU_ONOFFLINE	bool	depends on CAVIUM_OCTEON_SOC	default CAVIUM_OCTEON_SOC