| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | # |
| 2 | # Timer subsystem related configuration options |
| 3 | # |
| 4 | |
| 5 | # Core internal switch. Selected by NO_HZ / HIGH_RES_TIMERS. This is |
| 6 | # only related to the tick functionality. Oneshot clockevent devices |
| 7 | # are supported independ of this. |
| 8 | config TICK_ONESHOT |
| 9 | bool |
| 10 | |
| 11 | config NO_HZ |
| 12 | bool "Tickless System (Dynamic Ticks)" |
| 13 | depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS |
| 14 | select TICK_ONESHOT |
| 15 | help |
| 16 | This option enables a tickless system: timer interrupts will |
| 17 | only trigger on an as-needed basis both when the system is |
| 18 | busy and when the system is idle. |
| 19 | |
| 20 | config HIGH_RES_TIMERS |
| 21 | bool "High Resolution Timer Support" |
| 22 | depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS |
| 23 | select TICK_ONESHOT |
| 24 | help |
| 25 | This option enables high resolution timer support. If your |
| 26 | hardware is not capable then this option only increases |
| 27 | the size of the kernel image. |
| 28 | |
| 29 | config GENERIC_CLOCKEVENTS_BUILD |
| 30 | bool |
| 31 | default y |
| 32 | depends on GENERIC_CLOCKEVENTS |
| 33 | |
| 34 | config GENERIC_CLOCKEVENTS_MIN_ADJUST |
| 35 | bool |