Merge tag 'asoc-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...

[firefly-linux-kernel-4.4.55.git] / drivers / misc / cxl / Kconfig

diff --git a/drivers/misc/cxl/Kconfig b/drivers/misc/cxl/Kconfig
index 5cdd3199f97d708e1d6a7e5c8c9cba5ffe892b7b..a990b39b4dfb8716da5bb121f03ae241071ad33e 100644 (file)
--- a/drivers/misc/cxl/Kconfig
+++ b/drivers/misc/cxl/Kconfig
@@ -6,3 +6,20 @@ config CXL_BASE
        bool
        default n
        select PPC_COPRO_BASE
+
+config CXL
+       tristate "Support for IBM Coherent Accelerators (CXL)"
+       depends on PPC_POWERNV && PCI_MSI
+       select CXL_BASE
+       default m
+       help
+         Select this option to enable driver support for IBM Coherent
+         Accelerators (CXL).  CXL is otherwise known as Coherent Accelerator
+         Processor Interface (CAPI).  CAPI allows accelerators in FPGAs to be
+         coherently attached to a CPU via an MMU.  This driver enables
+         userspace programs to access these accelerators via /dev/cxl/afuM.N
+         devices.
+
+         CAPI adapters are found in POWER8 based systems.
+
+         If unsure, say N.