CONFIG_RISCV_ISA_ZICBOM: Zicbom extension support for non-coherent DMA operation

General informations

The Linux kernel configuration item CONFIG_RISCV_ISA_ZICBOM:

• prompt: Zicbom extension support for non-coherent DMA operation
• type: bool
• depends on: ! CONFIG_XIP_KERNEL && CONFIG_MMU
• defined in arch/riscv/Kconfig
• found in Linux kernels: 6.0–6.2, 6.3-rc+HEAD

Help text

Adds support to dynamically detect the presence of the ZICBOM extension (Cache Block Management Operations) and enable its usage.

The Zicbom extension can be used to handle for example non-coherent DMA support on devices that need it.

If you don't know what to do here, say Y.

Hardware

LKDDb

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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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