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authorFrederic Barrat <fbarrat@linux.vnet.ibm.com>2018-01-23 14:31:45 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2018-01-24 03:42:59 +0300
commitb97f02246e0d12f70249a16f931153b8b5b249bd (patch)
tree3508a2d3445060de28e860caf6725f9f3b1cbd15 /drivers/misc
parent92add22e84788d44e978662ca6bcd585f9ac081e (diff)
downloadlinux-b97f02246e0d12f70249a16f931153b8b5b249bd.tar.xz
ocxl: Add Makefile and Kconfig
OCXL_BASE triggers the platform support needed by the driver. Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/Kconfig1
-rw-r--r--drivers/misc/Makefile1
-rw-r--r--drivers/misc/ocxl/Kconfig31
-rw-r--r--drivers/misc/ocxl/Makefile11
4 files changed, 44 insertions, 0 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index f1a5c2357b14..0534f338c84a 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -508,4 +508,5 @@ source "drivers/misc/mic/Kconfig"
source "drivers/misc/genwqe/Kconfig"
source "drivers/misc/echo/Kconfig"
source "drivers/misc/cxl/Kconfig"
+source "drivers/misc/ocxl/Kconfig"
endmenu
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 5ca5f64df478..73326d54e246 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -55,6 +55,7 @@ obj-$(CONFIG_CXL_BASE) += cxl/
obj-$(CONFIG_ASPEED_LPC_CTRL) += aspeed-lpc-ctrl.o
obj-$(CONFIG_ASPEED_LPC_SNOOP) += aspeed-lpc-snoop.o
obj-$(CONFIG_PCI_ENDPOINT_TEST) += pci_endpoint_test.o
+obj-$(CONFIG_OCXL) += ocxl/
lkdtm-$(CONFIG_LKDTM) += lkdtm_core.o
lkdtm-$(CONFIG_LKDTM) += lkdtm_bugs.o
diff --git a/drivers/misc/ocxl/Kconfig b/drivers/misc/ocxl/Kconfig
new file mode 100644
index 000000000000..4bbdb0d3c8ee
--- /dev/null
+++ b/drivers/misc/ocxl/Kconfig
@@ -0,0 +1,31 @@
+#
+# Open Coherent Accelerator (OCXL) compatible devices
+#
+
+config OCXL_BASE
+ bool
+ default n
+ select PPC_COPRO_BASE
+
+config OCXL
+ tristate "OpenCAPI coherent accelerator support"
+ depends on PPC_POWERNV && PCI && EEH
+ select OCXL_BASE
+ default m
+ help
+ Select this option to enable the ocxl driver for Open
+ Coherent Accelerator Processor Interface (OpenCAPI) devices.
+
+ OpenCAPI allows FPGA and ASIC accelerators to be coherently
+ attached to a CPU over an OpenCAPI link.
+
+ The ocxl driver enables userspace programs to access these
+ accelerators through devices in /dev/ocxl/.
+
+ For more information, see http://opencapi.org.
+
+ This is not to be confused with the support for IBM CAPI
+ accelerators (CONFIG_CXL), which are PCI-based instead of a
+ dedicated OpenCAPI link, and don't follow the same protocol.
+
+ If unsure, say N.
diff --git a/drivers/misc/ocxl/Makefile b/drivers/misc/ocxl/Makefile
new file mode 100644
index 000000000000..5229dcda8297
--- /dev/null
+++ b/drivers/misc/ocxl/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0+
+ccflags-$(CONFIG_PPC_WERROR) += -Werror
+
+ocxl-y += main.o pci.o config.o file.o pasid.o
+ocxl-y += link.o context.o afu_irq.o sysfs.o trace.o
+obj-$(CONFIG_OCXL) += ocxl.o
+
+# For tracepoints to include our trace.h from tracepoint infrastructure:
+CFLAGS_trace.o := -I$(src)
+
+# ccflags-y += -DDEBUG