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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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4dea2d1a92
Implement vas_init() and vas_exit() functions for a new VAS module. This VAS module is essentially a library for other device drivers and kernel users of the NX coprocessors like NX-842 and NX-GZIP. In the future this will be extended to add support for user space to access the NX coprocessors. VAS is currently only supported with 64K page size. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
55 lines
1.4 KiB
Plaintext
55 lines
1.4 KiB
Plaintext
config PPC_POWERNV
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depends on PPC64 && PPC_BOOK3S
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bool "IBM PowerNV (Non-Virtualized) platform support"
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select PPC_NATIVE
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select PPC_XICS
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select PPC_ICP_NATIVE
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select PPC_XIVE_NATIVE
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select PPC_P7_NAP
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select PCI
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select PCI_MSI
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select EPAPR_BOOT
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select PPC_INDIRECT_PIO
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select PPC_UDBG_16550
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select PPC_SCOM
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select ARCH_RANDOM
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select CPU_FREQ
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select CPU_FREQ_GOV_PERFORMANCE
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select CPU_FREQ_GOV_POWERSAVE
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select CPU_FREQ_GOV_USERSPACE
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select CPU_FREQ_GOV_ONDEMAND
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select CPU_FREQ_GOV_CONSERVATIVE
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select PPC_DOORBELL
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select MMU_NOTIFIER
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select FORCE_SMP
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default y
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config OPAL_PRD
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tristate 'OPAL PRD driver'
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depends on PPC_POWERNV
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help
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This enables the opal-prd driver, a facility to run processor
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recovery diagnostics on OpenPower machines
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config PPC_MEMTRACE
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bool "Enable removal of RAM from kernel mappings for tracing"
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depends on PPC_POWERNV && MEMORY_HOTREMOVE
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default n
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help
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Enabling this option allows for the removal of memory (RAM)
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from the kernel mappings to be used for hardware tracing.
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config PPC_VAS
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bool "IBM Virtual Accelerator Switchboard (VAS)"
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depends on PPC_POWERNV && PPC_64K_PAGES
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default y
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help
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This enables support for IBM Virtual Accelerator Switchboard (VAS).
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VAS allows accelerators in co-processors like NX-GZIP and NX-842
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to be accessible to kernel subsystems and user processes.
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VAS adapters are found in POWER9 based systems.
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If unsure, say N.
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