projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| c68fd4f3 | 1 | # Select this to activate the generic irq options below |
| d9817ebe | 2 | config HAVE_GENERIC_HARDIRQS |
| fd4afaf3 | 3 | bool |
| d9817ebe TG |
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 | ||
| d9817ebe | 13 | # Options selectable by the architecture code |
| c68fd4f3 TG |
14 | |
| 15 | # Make sparse irq Kconfig switch below available | |
| 2ed86b16 | 16 | config MAY_HAVE_SPARSE_IRQ |
| fd4afaf3 | 17 | bool |
| d9817ebe | 18 | |
| c68fd4f3 | 19 | # Enable the generic irq autoprobe mechanism |
| d9817ebe | 20 | config GENERIC_IRQ_PROBE |
| fd4afaf3 | 21 | bool |
| d9817ebe | 22 | |
| c68fd4f3 | 23 | # Use the generic /proc/interrupts implementation |
| c78b9b65 | 24 | config GENERIC_IRQ_SHOW |
| fd4afaf3 | 25 | bool |
| c78b9b65 | 26 | |
| ab7798ff TG |
27 | # Print level/edge extra information |
| 28 | config GENERIC_IRQ_SHOW_LEVEL | |
| 29 | bool | |
| 30 | ||
| c68fd4f3 | 31 | # Support for delayed migration from interrupt context |
| d9817ebe | 32 | config GENERIC_PENDING_IRQ |
| fd4afaf3 | 33 | bool |
| d9817ebe | 34 | |
| c68fd4f3 | 35 | # Alpha specific irq affinity mechanism |
| d9817ebe | 36 | config AUTO_IRQ_AFFINITY |
| fd4afaf3 | 37 | bool |
| d9817ebe | 38 | |
| c68fd4f3 | 39 | # Tasklet based software resend for pending interrupts on enable_irq() |
| d9817ebe | 40 | config HARDIRQS_SW_RESEND |
| fd4afaf3 | 41 | bool |
| d9817ebe | 42 | |
| c68fd4f3 | 43 | # Preflow handler support for fasteoi (sparc64) |
| 78129576 | 44 | config IRQ_PREFLOW_FASTEOI |
| fd4afaf3 | 45 | bool |
| 78129576 | 46 | |
| 0521c8fb TG |
47 | # Edge style eoi based handler (cell) |
| 48 | config IRQ_EDGE_EOI_HANDLER | |
| 49 | bool | |
| 50 | ||
| c42321c7 TG |
51 | # Generic configurable interrupt chip implementation |
| 52 | config GENERIC_IRQ_CHIP | |
| 53 | bool | |
| 54 | ||
| 08a543ad GL |
55 | # Generic irq_domain hw <--> linux irq number translation |
| 56 | config IRQ_DOMAIN | |
| 57 | bool | |
| 58 | ||
| 092b2fb0 GL |
59 | config IRQ_DOMAIN_DEBUG |
| 60 | bool "Expose hardware/virtual IRQ mapping via debugfs" | |
| 61 | depends on IRQ_DOMAIN && DEBUG_FS | |
| 62 | help | |
| 63 | This option will show the mapping relationship between hardware irq | |
| 64 | numbers and Linux irq numbers. The mapping is exposed via debugfs | |
| ac5830a3 | 65 | in the file "irq_domain_mapping". |
| 092b2fb0 GL |
66 | |
| 67 | If you don't know what this means you don't need it. | |
| 68 | ||
| c68fd4f3 | 69 | # Support forced irq threading |
| 8d32a307 TG |
70 | config IRQ_FORCED_THREADING |
| 71 | bool | |
| 72 | ||
| d9817ebe | 73 | config SPARSE_IRQ |
| 2ed86b16 | 74 | bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ |
| d9817ebe TG |
75 | ---help--- |
| 76 | ||
| 77 | Sparse irq numbering is useful for distro kernels that want | |
| 78 | to define a high CONFIG_NR_CPUS value but still want to have | |
| 79 | low kernel memory footprint on smaller machines. | |
| 80 | ||
| 81 | ( Sparse irqs can also be beneficial on NUMA boxes, as they spread | |
| 82 | out the interrupt descriptors in a more NUMA-friendly way. ) | |
| 83 | ||
| 84 | If you don't know what to do here, say N. | |
| 85 | ||
| 86 | endmenu | |
| 87 | endif |