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CONFIG_APB_TIMER: Intel MID APB Timer Support

General informations

The Linux kernel configuration item CONFIG_APB_TIMER has multiple definitions:

Intel MID APB Timer Support found in arch/x86/Kconfig

The configuration item CONFIG_APB_TIMER:

Help text

APB timer is the replacement for 8254, HPET on X86 MID platforms. The APBT provides a stable time base on SMP systems, unlike the TSC, but it is more expensive to access, as it is off-chip. APB timers are always running regardless of CPU C states, they are used as per CPU clockevent device when possible.

Langwell APB Timer Support found in arch/x86/Kconfig

The configuration item CONFIG_APB_TIMER:

Help text

APB timer is the replacement for 8254, HPET on X86 MID platforms. The APBT provides a stable time base on SMP systems, unlike the TSC, but it is more expensive to access, as it is off-chip. APB timers are always running regardless of CPU C states, they are used as per CPU clockevent device when possible.

Hardware

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