Kconfig 1.6 KB

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  1. # Select this to activate the generic irq options below
  2. config HAVE_GENERIC_HARDIRQS
  3. bool
  4. if HAVE_GENERIC_HARDIRQS
  5. menu "IRQ subsystem"
  6. #
  7. # Interrupt subsystem related configuration options
  8. #
  9. config GENERIC_HARDIRQS
  10. def_bool y
  11. config GENERIC_HARDIRQS_NO_COMPAT
  12. bool
  13. # Options selectable by the architecture code
  14. # Make sparse irq Kconfig switch below available
  15. config HAVE_SPARSE_IRQ
  16. bool
  17. # Enable the generic irq autoprobe mechanism
  18. config GENERIC_IRQ_PROBE
  19. bool
  20. # Use the generic /proc/interrupts implementation
  21. config GENERIC_IRQ_SHOW
  22. bool
  23. # Print level/edge extra information
  24. config GENERIC_IRQ_SHOW_LEVEL
  25. bool
  26. # Support for delayed migration from interrupt context
  27. config GENERIC_PENDING_IRQ
  28. bool
  29. # Alpha specific irq affinity mechanism
  30. config AUTO_IRQ_AFFINITY
  31. bool
  32. # Tasklet based software resend for pending interrupts on enable_irq()
  33. config HARDIRQS_SW_RESEND
  34. bool
  35. # Preflow handler support for fasteoi (sparc64)
  36. config IRQ_PREFLOW_FASTEOI
  37. bool
  38. # Edge style eoi based handler (cell)
  39. config IRQ_EDGE_EOI_HANDLER
  40. bool
  41. # Support forced irq threading
  42. config IRQ_FORCED_THREADING
  43. bool
  44. config SPARSE_IRQ
  45. bool "Support sparse irq numbering"
  46. depends on HAVE_SPARSE_IRQ
  47. ---help---
  48. Sparse irq numbering is useful for distro kernels that want
  49. to define a high CONFIG_NR_CPUS value but still want to have
  50. low kernel memory footprint on smaller machines.
  51. ( Sparse irqs can also be beneficial on NUMA boxes, as they spread
  52. out the interrupt descriptors in a more NUMA-friendly way. )
  53. If you don't know what to do here, say N.
  54. endmenu
  55. endif