Version:  2.0.40 2.2.26 2.4.37 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

Linux/kernel/irq/Kconfig

  1 menu "IRQ subsystem"
  2 # Options selectable by the architecture code
  3 
  4 # Make sparse irq Kconfig switch below available
  5 config MAY_HAVE_SPARSE_IRQ
  6        bool
  7 
  8 # Legacy support, required for itanic
  9 config GENERIC_IRQ_LEGACY
 10        bool
 11 
 12 # Enable the generic irq autoprobe mechanism
 13 config GENERIC_IRQ_PROBE
 14         bool
 15 
 16 # Use the generic /proc/interrupts implementation
 17 config GENERIC_IRQ_SHOW
 18        bool
 19 
 20 # Print level/edge extra information
 21 config GENERIC_IRQ_SHOW_LEVEL
 22        bool
 23 
 24 # Facility to allocate a hardware interrupt. This is legacy support
 25 # and should not be used in new code. Use irq domains instead.
 26 config GENERIC_IRQ_LEGACY_ALLOC_HWIRQ
 27        bool
 28 
 29 # Support for delayed migration from interrupt context
 30 config GENERIC_PENDING_IRQ
 31         bool
 32 
 33 # Support for generic irq migrating off cpu before the cpu is offline.
 34 config GENERIC_IRQ_MIGRATION
 35         bool
 36 
 37 # Alpha specific irq affinity mechanism
 38 config AUTO_IRQ_AFFINITY
 39        bool
 40 
 41 # Tasklet based software resend for pending interrupts on enable_irq()
 42 config HARDIRQS_SW_RESEND
 43        bool
 44 
 45 # Preflow handler support for fasteoi (sparc64)
 46 config IRQ_PREFLOW_FASTEOI
 47        bool
 48 
 49 # Edge style eoi based handler (cell)
 50 config IRQ_EDGE_EOI_HANDLER
 51        bool
 52 
 53 # Generic configurable interrupt chip implementation
 54 config GENERIC_IRQ_CHIP
 55        bool
 56        select IRQ_DOMAIN
 57 
 58 # Generic irq_domain hw <--> linux irq number translation
 59 config IRQ_DOMAIN
 60         bool
 61 
 62 # Support for hierarchical irq domains
 63 config IRQ_DOMAIN_HIERARCHY
 64         bool
 65         select IRQ_DOMAIN
 66 
 67 # Generic IRQ IPI support
 68 config GENERIC_IRQ_IPI
 69         bool
 70 
 71 # Generic MSI interrupt support
 72 config GENERIC_MSI_IRQ
 73         bool
 74 
 75 # Generic MSI hierarchical interrupt domain support
 76 config GENERIC_MSI_IRQ_DOMAIN
 77         bool
 78         select IRQ_DOMAIN_HIERARCHY
 79         select GENERIC_MSI_IRQ
 80 
 81 config HANDLE_DOMAIN_IRQ
 82         bool
 83 
 84 config IRQ_DOMAIN_DEBUG
 85         bool "Expose hardware/virtual IRQ mapping via debugfs"
 86         depends on IRQ_DOMAIN && DEBUG_FS
 87         help
 88           This option will show the mapping relationship between hardware irq
 89           numbers and Linux irq numbers. The mapping is exposed via debugfs
 90           in the file "irq_domain_mapping".
 91 
 92           If you don't know what this means you don't need it.
 93 
 94 # Support forced irq threading
 95 config IRQ_FORCED_THREADING
 96        bool
 97 
 98 config SPARSE_IRQ
 99         bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ
100         ---help---
101 
102           Sparse irq numbering is useful for distro kernels that want
103           to define a high CONFIG_NR_CPUS value but still want to have
104           low kernel memory footprint on smaller machines.
105 
106           ( Sparse irqs can also be beneficial on NUMA boxes, as they spread
107             out the interrupt descriptors in a more NUMA-friendly way. )
108 
109           If you don't know what to do here, say N.
110 
111 endmenu

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us