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CONFIG_PPC_VAS: IBM Virtual Accelerator Switchboard (VAS)

General informations

The Linux kernel configuration item CONFIG_PPC_VAS has multiple definitions:

IBM Virtual Accelerator Switchboard (VAS) found in arch/powerpc/platforms/book3s/Kconfig

The configuration item CONFIG_PPC_VAS:

Help text

This enables support for IBM Virtual Accelerator Switchboard (VAS).

VAS devices are found in POWER9-based and later systems, they provide access to accelerator coprocessors such as NX-GZIP and NX-842. This config allows the kernel to use NX-842 accelerators, and user-mode APIs for the NX-GZIP accelerator on POWER9 PowerNV and POWER10 PowerVM platforms.

If unsure, say "N".

IBM Virtual Accelerator Switchboard (VAS) found in arch/powerpc/platforms/powernv/Kconfig

The configuration item CONFIG_PPC_VAS:

Help text

This enables support for IBM Virtual Accelerator Switchboard (VAS).

VAS allows accelerators in co-processors like NX-GZIP and NX-842 to be accessible to kernel subsystems and user processes.

VAS adapters are found in POWER9 based systems.

If unsure, say N.

Hardware

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