Thomas Gleixner | c68fd4f | 2011-03-08 19:52:55 +0100 | [diff] [blame] | 1 | # Select this to activate the generic irq options below |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 2 | config HAVE_GENERIC_HARDIRQS |
Jan Beulich | fd4afaf | 2011-02-17 13:39:05 +0000 | [diff] [blame] | 3 | bool |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 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 | |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 13 | # Options selectable by the architecture code |
Thomas Gleixner | c68fd4f | 2011-03-08 19:52:55 +0100 | [diff] [blame] | 14 | |
| 15 | # Make sparse irq Kconfig switch below available |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 16 | config HAVE_SPARSE_IRQ |
Jan Beulich | fd4afaf | 2011-02-17 13:39:05 +0000 | [diff] [blame] | 17 | bool |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 18 | |
Thomas Gleixner | c68fd4f | 2011-03-08 19:52:55 +0100 | [diff] [blame] | 19 | # Enable the generic irq autoprobe mechanism |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 20 | config GENERIC_IRQ_PROBE |
Jan Beulich | fd4afaf | 2011-02-17 13:39:05 +0000 | [diff] [blame] | 21 | bool |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 22 | |
Thomas Gleixner | c68fd4f | 2011-03-08 19:52:55 +0100 | [diff] [blame] | 23 | # Use the generic /proc/interrupts implementation |
Thomas Gleixner | c78b9b6 | 2010-12-16 17:21:47 +0100 | [diff] [blame] | 24 | config GENERIC_IRQ_SHOW |
Jan Beulich | fd4afaf | 2011-02-17 13:39:05 +0000 | [diff] [blame] | 25 | bool |
Thomas Gleixner | c78b9b6 | 2010-12-16 17:21:47 +0100 | [diff] [blame] | 26 | |
Thomas Gleixner | ab7798f | 2011-03-25 16:48:50 +0100 | [diff] [blame] | 27 | # Print level/edge extra information |
| 28 | config GENERIC_IRQ_SHOW_LEVEL |
| 29 | bool |
| 30 | |
Thomas Gleixner | c68fd4f | 2011-03-08 19:52:55 +0100 | [diff] [blame] | 31 | # Support for delayed migration from interrupt context |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 32 | config GENERIC_PENDING_IRQ |
Jan Beulich | fd4afaf | 2011-02-17 13:39:05 +0000 | [diff] [blame] | 33 | bool |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 34 | |
Thomas Gleixner | c68fd4f | 2011-03-08 19:52:55 +0100 | [diff] [blame] | 35 | # Alpha specific irq affinity mechanism |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 36 | config AUTO_IRQ_AFFINITY |
Jan Beulich | fd4afaf | 2011-02-17 13:39:05 +0000 | [diff] [blame] | 37 | bool |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 38 | |
Thomas Gleixner | c68fd4f | 2011-03-08 19:52:55 +0100 | [diff] [blame] | 39 | # Tasklet based software resend for pending interrupts on enable_irq() |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 40 | config HARDIRQS_SW_RESEND |
Jan Beulich | fd4afaf | 2011-02-17 13:39:05 +0000 | [diff] [blame] | 41 | bool |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 42 | |
Thomas Gleixner | c68fd4f | 2011-03-08 19:52:55 +0100 | [diff] [blame] | 43 | # Preflow handler support for fasteoi (sparc64) |
Thomas Gleixner | 7812957 | 2011-02-10 15:14:20 +0100 | [diff] [blame] | 44 | config IRQ_PREFLOW_FASTEOI |
Jan Beulich | fd4afaf | 2011-02-17 13:39:05 +0000 | [diff] [blame] | 45 | bool |
Thomas Gleixner | 7812957 | 2011-02-10 15:14:20 +0100 | [diff] [blame] | 46 | |
Thomas Gleixner | 0521c8f | 2011-03-28 16:13:24 +0200 | [diff] [blame] | 47 | # Edge style eoi based handler (cell) |
| 48 | config IRQ_EDGE_EOI_HANDLER |
| 49 | bool |
| 50 | |
Thomas Gleixner | c42321c | 2011-05-02 18:16:22 +0200 | [diff] [blame] | 51 | # Generic configurable interrupt chip implementation |
| 52 | config GENERIC_IRQ_CHIP |
| 53 | bool |
| 54 | |
Thomas Gleixner | c68fd4f | 2011-03-08 19:52:55 +0100 | [diff] [blame] | 55 | # Support forced irq threading |
Thomas Gleixner | 8d32a30 | 2011-02-23 23:52:23 +0000 | [diff] [blame] | 56 | config IRQ_FORCED_THREADING |
| 57 | bool |
| 58 | |
Thomas Gleixner | d9817eb | 2010-09-27 12:45:59 +0000 | [diff] [blame] | 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 |