CONFIG_ARM64_LSE_ATOMICS:

General informations

The Linux kernel configuration item CONFIG_ARM64_LSE_ATOMICS has multiple definitions:

found in arch/arm64/Kconfig

The configuration item CONFIG_ARM64_LSE_ATOMICS:

• prompt:
• type: bool
• depends on: CONFIG_AS_HAS_LSE_ATOMICS
• defined in arch/arm64/Kconfig
• found in Linux kernels: 5.6–5.19, 6.0–6.11, 6.12-rc+HEAD

Help text

(none)

Atomic instructions found in arch/arm64/Kconfig

The configuration item CONFIG_ARM64_LSE_ATOMICS:

• prompt: Atomic instructions
• type: bool
• depends on: CONFIG_JUMP_LABEL
• defined in arch/arm64/Kconfig
• found in Linux kernels: 4.3–4.20, 5.0–5.5

Help text

As part of the Large System Extensions, ARMv8.1 introduces new atomic instructions that are designed specifically to scale in very large systems.

Say Y here to make use of these instructions for the in-kernel atomic routines. This incurs a small overhead on CPUs that do not support these instructions and requires the kernel to be built with binutils >= 2.25 in order for the new instructions to be used.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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