Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 35 insertions, 0 deletions

diff --git a/drivers/misc/cxl/Kconfig b/drivers/misc/cxl/Kconfig
new file mode 100644
index 000000000..3ce933707
--- /dev/null
+++ b/drivers/misc/cxl/Kconfig
@@ -0,0 +1,35 @@
+#
+# IBM Coherent Accelerator (CXL) compatible devices
+#
+
+config CXL_BASE
+	bool
+	default n
+	select PPC_COPRO_BASE
+
+config CXL_AFU_DRIVER_OPS
+	bool
+	default n
+
+config CXL_LIB
+	bool
+	default n
+
+config CXL
+	tristate "Support for IBM Coherent Accelerators (CXL)"
+	depends on PPC_POWERNV && PCI_MSI && EEH
+	select CXL_BASE
+	select CXL_AFU_DRIVER_OPS
+	select CXL_LIB
+	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.