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authorSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>2017-08-28 23:23:33 -0700
committerMichael Ellerman <mpe@ellerman.id.au>2017-08-31 14:26:26 +1000
commit4dea2d1a927c61114a168d4509b56329ea6effb7 (patch)
tree06787dfcf5c7dc2119bf9f16d1a22fbe3dc8f50a /arch/powerpc/platforms/powernv/Kconfig
parentb6622a339e8670a1025d4dd84be473c76dabed33 (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/Kconfig14
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.