CONFIG_CPU_LOONGSON3_WORKAROUNDS: Loongson-3 LLSC Workarounds

General informations

The Linux kernel configuration item CONFIG_CPU_LOONGSON3_WORKAROUNDS has multiple definitions:

Loongson-3 LLSC Workarounds found in arch/mips/Kconfig

The configuration item CONFIG_CPU_LOONGSON3_WORKAROUNDS:

• prompt: Loongson-3 LLSC Workarounds
• type: bool
• depends on: ( CONFIG_SMP ) && ( CONFIG_CPU_LOONGSON64 )
• defined in arch/mips/Kconfig
• found in Linux kernels: 5.18–5.19, 6.0–6.14

Help text

Loongson-3 processors have the llsc issues which require workarounds. Without workarounds the system may hang unexpectedly.

Say Y, unless you know what you are doing.

Old Loongson-3 LLSC Workarounds found in arch/mips/Kconfig

The configuration item CONFIG_CPU_LOONGSON3_WORKAROUNDS:

• prompt: Old Loongson-3 LLSC Workarounds
• type: bool
• depends on: ( CONFIG_SMP ) && ( CONFIG_CPU_LOONGSON64 )
• defined in arch/mips/Kconfig
• found in Linux kernels: 5.5–5.17, 5.17+HEAD

Help text

Loongson-3 processors have the llsc issues which require workarounds. Without workarounds the system may hang unexpectedly.

Newer Loongson-3 will fix these issues and no workarounds are needed. The workarounds have no significant side effect on them but may decrease the performance of the system so this option should be disabled unless the kernel is intended to be run on old systems.

If unsure, please say Y.

Old Loongson 3 LLSC Workarounds found in arch/mips/Kconfig

The configuration item CONFIG_CPU_LOONGSON3_WORKAROUNDS:

• prompt: Old Loongson 3 LLSC Workarounds
• type: bool
• depends on: ( CONFIG_SMP ) && ( CONFIG_CPU_LOONGSON3 )
• defined in arch/mips/Kconfig
• found in Linux kernels: 5.0–5.4

Help text

Loongson 3 processors have the llsc issues which require workarounds. Without workarounds the system may hang unexpectedly.

Newer Loongson 3 will fix these issues and no workarounds are needed. The workarounds have no significant side effect on them but may decrease the performance of the system so this option should be disabled unless the kernel is intended to be run on old systems.

If unsure, please say Y.

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