diff options
| author | Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> | 2017-08-28 23:23:33 -0700 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-31 14:26:26 +1000 |
| commit | 4dea2d1a927c61114a168d4509b56329ea6effb7 (patch) | |
| tree | 06787dfcf5c7dc2119bf9f16d1a22fbe3dc8f50a /arch/powerpc/platforms/powernv/Kconfig | |
| parent | b6622a339e8670a1025d4dd84be473c76dabed33 (diff) | |
powerpc/powernv/vas: Define vas_init() and vas_exit()
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>
Diffstat (limited to 'arch/powerpc/platforms/powernv/Kconfig')
| -rw-r--r-- | arch/powerpc/platforms/powernv/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/Kconfig b/arch/powerpc/platforms/powernv/Kconfig index d7bacb20529c..340cbe263b33 100644 --- a/arch/powerpc/platforms/powernv/Kconfig +++ b/arch/powerpc/platforms/powernv/Kconfig @@ -38,3 +38,17 @@ config PPC_MEMTRACE help Enabling this option allows for the removal of memory (RAM) from the kernel mappings to be used for hardware tracing. + +config PPC_VAS + bool "IBM Virtual Accelerator Switchboard (VAS)" + depends on PPC_POWERNV && PPC_64K_PAGES + default y + help + 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. |