projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 79bf2bb3 TG |
1 | # |
| 2 | # Timer subsystem related configuration options | |
| 3 | # | |
| 3872c48b TG |
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. | |
| 79bf2bb3 TG |
8 | config TICK_ONESHOT |
| 9 | bool | |
| 79bf2bb3 TG |
10 | |
| 11 | config NO_HZ | |
| 12 | bool "Tickless System (Dynamic Ticks)" | |
| 592913ec | 13 | depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS |
| 79bf2bb3 TG |
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. | |
| 54cdfdb4 TG |
19 | |
| 20 | config HIGH_RES_TIMERS | |
| 21 | bool "High Resolution Timer Support" | |
| 592913ec | 22 | depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS |
| 54cdfdb4 TG |
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 | ||
| de68d9b1 TG |
29 | config GENERIC_CLOCKEVENTS_BUILD |
| 30 | bool | |
| 31 | default y | |
| a13b0327 | 32 | depends on GENERIC_CLOCKEVENTS |
| de68d9b1 | 33 | |
| d1748302 MS |
34 | config GENERIC_CLOCKEVENTS_MIN_ADJUST |
| 35 | bool | |
| b5e498ad TG |
36 | |
| 37 | # Options selectable by arch Kconfig | |
| 38 | ||
| 39 | # Watchdog function for clocksources to detect instabilities | |
| 40 | config CLOCKSOURCE_WATCHDOG | |
| 41 | bool | |
| 42 | ||
| 43 | # Architecture has extra clocksource data | |
| 44 | config ARCH_CLOCKSOURCE_DATA | |
| 45 | bool | |
| 46 | ||
| 47 | # Timekeeping vsyscall support | |
| 48 | config GENERIC_TIME_VSYSCALL | |
| 49 | bool | |
| 50 | ||
| 51 | # ktime_t scalar 64bit nsec representation | |
| 52 | config KTIME_SCALAR | |
| 53 | bool | |
| 54 | ||
| 55 | # Old style timekeeping | |
| 56 | config ARCH_USES_GETTIMEOFFSET | |
| 57 | bool | |
| 58 | ||
| 59 | # The generic clock events infrastructure | |
| 60 | config GENERIC_CLOCKEVENTS | |
| 61 | bool | |
| 62 | ||
| 63 | # Clockevents broadcasting infrastructure | |
| 64 | config GENERIC_CLOCKEVENTS_BROADCAST | |
| 65 | bool | |
| 66 | depends on GENERIC_CLOCKEVENTS | |
| 67 | ||
| 68 | # Generic update of CMOS clock | |
| 69 | config GENERIC_CMOS_UPDATE | |
| 70 | bool |