diff options
Diffstat (limited to 'kernel/irq/Kconfig')
-rw-r--r-- | kernel/irq/Kconfig | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig new file mode 100644 index 000000000000..d1d051b38e0b --- /dev/null +++ b/kernel/irq/Kconfig | |||
@@ -0,0 +1,74 @@ | |||
1 | # Select this to activate the generic irq options below | ||
2 | config HAVE_GENERIC_HARDIRQS | ||
3 | bool | ||
4 | |||
5 | if HAVE_GENERIC_HARDIRQS | ||
6 | menu "IRQ subsystem" | ||
7 | # | ||
8 | # Interrupt subsystem related configuration options | ||
9 | # | ||
10 | config GENERIC_HARDIRQS | ||
11 | def_bool y | ||
12 | |||
13 | # Options selectable by the architecture code | ||
14 | |||
15 | # Make sparse irq Kconfig switch below available | ||
16 | config HAVE_SPARSE_IRQ | ||
17 | bool | ||
18 | |||
19 | # Enable the generic irq autoprobe mechanism | ||
20 | config GENERIC_IRQ_PROBE | ||
21 | bool | ||
22 | |||
23 | # Use the generic /proc/interrupts implementation | ||
24 | config GENERIC_IRQ_SHOW | ||
25 | bool | ||
26 | |||
27 | # Print level/edge extra information | ||
28 | config GENERIC_IRQ_SHOW_LEVEL | ||
29 | bool | ||
30 | |||
31 | # Support for delayed migration from interrupt context | ||
32 | config GENERIC_PENDING_IRQ | ||
33 | bool | ||
34 | |||
35 | # Alpha specific irq affinity mechanism | ||
36 | config AUTO_IRQ_AFFINITY | ||
37 | bool | ||
38 | |||
39 | # Tasklet based software resend for pending interrupts on enable_irq() | ||
40 | config HARDIRQS_SW_RESEND | ||
41 | bool | ||
42 | |||
43 | # Preflow handler support for fasteoi (sparc64) | ||
44 | config IRQ_PREFLOW_FASTEOI | ||
45 | bool | ||
46 | |||
47 | # Edge style eoi based handler (cell) | ||
48 | config IRQ_EDGE_EOI_HANDLER | ||
49 | bool | ||
50 | |||
51 | # Generic configurable interrupt chip implementation | ||
52 | config GENERIC_IRQ_CHIP | ||
53 | bool | ||
54 | |||
55 | # Support forced irq threading | ||
56 | config IRQ_FORCED_THREADING | ||
57 | bool | ||
58 | |||
59 | config SPARSE_IRQ | ||
60 | bool "Support sparse irq numbering" | ||
61 | depends on HAVE_SPARSE_IRQ | ||
62 | ---help--- | ||
63 | |||
64 | Sparse irq numbering is useful for distro kernels that want | ||
65 | to define a high CONFIG_NR_CPUS value but still want to have | ||
66 | low kernel memory footprint on smaller machines. | ||
67 | |||
68 | ( Sparse irqs can also be beneficial on NUMA boxes, as they spread | ||
69 | out the interrupt descriptors in a more NUMA-friendly way. ) | ||
70 | |||
71 | If you don't know what to do here, say N. | ||
72 | |||
73 | endmenu | ||
74 | endif | ||