CONFIG_CPU_HAS_LASX: Support for the Loongson Advanced SIMD Extension

General informations

The Linux kernel configuration item CONFIG_CPU_HAS_LASX:

• prompt: Support for the Loongson Advanced SIMD Extension
• type: bool
• depends on: ( CONFIG_CPU_HAS_LSX ) && ( CONFIG_AS_HAS_LASX_EXTENSION )
• defined in arch/loongarch/Kconfig
• found in Linux kernels: 6.5–6.8, 6.9-rc+HEAD

Help text

Loongson Advanced SIMD Extension (LASX) introduces 256 bit wide vector registers and a set of SIMD instructions to operate on them. When this option is enabled the kernel will support allocating & switching LASX vector register contexts. If you know that your kernel will only be running on CPUs which do not support LASX or that your userland will not be making use of it then you may wish to say N here to reduce the size & complexity of your kernel.

If unsure, say Y.

Hardware

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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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