1 # Select this to activate the generic irq options below
2 config HAVE_GENERIC_HARDIRQS
5 if HAVE_GENERIC_HARDIRQS
8 # Interrupt subsystem related configuration options
10 config GENERIC_HARDIRQS
13 # Select this to disable the deprecated stuff
14 config GENERIC_HARDIRQS_NO_DEPRECATED
17 config GENERIC_HARDIRQS_NO_COMPAT
20 # Options selectable by the architecture code
22 # Make sparse irq Kconfig switch below available
23 config HAVE_SPARSE_IRQ
26 # Enable the generic irq autoprobe mechanism
27 config GENERIC_IRQ_PROBE
30 # Use the generic /proc/interrupts implementation
31 config GENERIC_IRQ_SHOW
34 # Print level/edge extra information
35 config GENERIC_IRQ_SHOW_LEVEL
38 # Support for delayed migration from interrupt context
39 config GENERIC_PENDING_IRQ
42 # Alpha specific irq affinity mechanism
43 config AUTO_IRQ_AFFINITY
46 # Tasklet based software resend for pending interrupts on enable_irq()
47 config HARDIRQS_SW_RESEND
50 # Preflow handler support for fasteoi (sparc64)
51 config IRQ_PREFLOW_FASTEOI
54 # Support forced irq threading
55 config IRQ_FORCED_THREADING
59 bool "Support sparse irq numbering"
60 depends on HAVE_SPARSE_IRQ
63 Sparse irq numbering is useful for distro kernels that want
64 to define a high CONFIG_NR_CPUS value but still want to have
65 low kernel memory footprint on smaller machines.
67 ( Sparse irqs can also be beneficial on NUMA boxes, as they spread
68 out the interrupt descriptors in a more NUMA-friendly way. )
70 If you don't know what to do here, say N.