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usr
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src
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linux-headers-5.15.0-181
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kernel
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irq
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/usr/src/linux-headers-5.15.0-181/kernel/irq
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/usr/src/linux-headers-5.15.0-181/kernel/irq/Kconfig
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# 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 # 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 obsolete non-mapping irq domains config IRQ_DOMAIN_NOMAP 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 depends on SMP 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.
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