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The Linux kernel configuration item CONFIG_PPC_VAS has multiple definitions:
arch/powerpc/platforms/book3s/KconfigThe configuration item CONFIG_PPC_VAS:
( CONFIG_PPC_POWERNV || CONFIG_PPC_PSERIES ) && CONFIG_PPC_64K_PAGESThis 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".
arch/powerpc/platforms/powernv/KconfigThe configuration item CONFIG_PPC_VAS:
CONFIG_PPC_POWERNV && CONFIG_PPC_64K_PAGESThis 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.
Raw data from LKDDb:
lkddb of "" "" "ibm,vas" : CONFIG_PPC_POWERNV CONFIG_PPC_VAS : arch/powerpc/platforms/powernv/vas.c # in 4.14–4.20, 5.0–5.19, 6.0–6.12lkddb platform "vas" : CONFIG_PPC_POWERNV CONFIG_PPC_VAS : arch/powerpc/platforms/powernv/vas.c # in 4.14–4.20, 5.0–5.19, 6.0–6.12This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).
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Automatically generated (in year 2024). See also LKDDb sources on GitLab