fpga: xrt: Kconfig and Makefile updates for XRT drivers

Update fpga Kconfig/Makefile and add Kconfig/Makefile for new drivers.

Signed-off-by: Sonal Santan <sonal.santan@xilinx.com>
Signed-off-by: Max Zhen <max.zhen@xilinx.com>
Signed-off-by: Lizhi Hou <lizhih@xilinx.com>

MAINTAINERS

@@ -6972,6 +6972,17 @@ F:	Documentation/fpga/
 F:	drivers/fpga/
 F:	include/linux/fpga/
 
+FPGA XRT DRIVERS
+M:	Lizhi Hou <lizhi.hou@xilinx.com>
+R:	Max Zhen <max.zhen@xilinx.com>
+R:	Sonal Santan <sonal.santan@xilinx.com>
+L:	linux-fpga@vger.kernel.org
+S:	Maintained
+W:	https://github.com/Xilinx/XRT
+F:	Documentation/fpga/xrt.rst
+F:	drivers/fpga/xrt/
+F:	include/uapi/linux/xrt/
+
 FPU EMULATOR
 M:	Bill Metzenthen <billm@melbpc.org.au>
 S:	Maintained

drivers/Makefile

@@ -178,6 +178,7 @@ obj-$(CONFIG_STM)		+= hwtracing/stm/
 obj-$(CONFIG_ANDROID)		+= android/
 obj-$(CONFIG_NVMEM)		+= nvmem/
 obj-$(CONFIG_FPGA)		+= fpga/
+obj-y				+= fpga/xrt/metadata/
 obj-$(CONFIG_FSI)		+= fsi/
 obj-$(CONFIG_TEE)		+= tee/
 obj-$(CONFIG_MULTIPLEXER)	+= mux/

drivers/fpga/Kconfig

@@ -216,4 +216,6 @@ config FPGA_MGR_ZYNQMP_FPGA
 	  to configure the programmable logic(PL) through PS
 	  on ZynqMP SoC.
 
+source "drivers/fpga/xrt/Kconfig"
+
 endif # FPGA

drivers/fpga/Makefile

@@ -46,3 +46,7 @@ dfl-afu-objs += dfl-afu-error.o
 
 # Drivers for FPGAs which implement DFL
 obj-$(CONFIG_FPGA_DFL_PCI)		+= dfl-pci.o
+
+# XRT drivers for Alveo
+obj-$(CONFIG_FPGA_XRT_LIB)		+= xrt/lib/
+obj-$(CONFIG_FPGA_XRT_XMGMT)		+= xrt/mgmt/

drivers/fpga/xrt/Kconfig

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Xilinx Alveo FPGA device configuration
+#
+
+source "drivers/fpga/xrt/metadata/Kconfig"
+source "drivers/fpga/xrt/lib/Kconfig"
+source "drivers/fpga/xrt/mgmt/Kconfig"

drivers/fpga/xrt/lib/Kconfig

@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# XRT Alveo FPGA device configuration
+#
+
+config FPGA_XRT_LIB
+	tristate "XRT Alveo Driver Library"
+	depends on HWMON && PCI && HAS_IOMEM
+	select FPGA_XRT_METADATA
+	help
+	  Select this option to enable Xilinx XRT Alveo driver library. This
+	  library is core infrastructure of XRT Alveo FPGA drivers which
+	  provides functions for working with device nodes, iteration and
+	  lookup of platform devices, common interfaces for platform devices,
+	  plumbing of function call and ioctls between platform devices and
+	  parent partitions.

drivers/fpga/xrt/lib/Makefile

@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2020-2021 Xilinx, Inc. All rights reserved.
+#
+# Authors: Sonal.Santan@xilinx.com
+#
+
+FULL_XRT_PATH=$(srctree)/$(src)/..
+FULL_DTC_PATH=$(srctree)/scripts/dtc/libfdt
+
+obj-$(CONFIG_FPGA_XRT_LIB) += xrt-lib.o
+
+xrt-lib-objs :=			\
+	main.o			\
+	xroot.o			\
+	xclbin.o		\
+	subdev.o		\
+	cdev.o			\
+	group.o			\
+	xleaf/vsec.o		\
+	xleaf/axigate.o		\
+	xleaf/devctl.o		\
+	xleaf/icap.o		\
+	xleaf/clock.o		\
+	xleaf/clkfreq.o		\
+	xleaf/ucs.o		\
+	xleaf/calib.o		\
+
+ccflags-y := -I$(FULL_XRT_PATH)/include	 \
+	-I$(FULL_DTC_PATH)

drivers/fpga/xrt/metadata/Kconfig

@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# XRT Alveo FPGA device configuration
+#
+
+config FPGA_XRT_METADATA
+	bool "XRT Alveo Driver Metadata Parser"
+	select LIBFDT
+	help
+	  This option provides helper functions to parse Xilinx Alveo FPGA
+	  firmware metadata. The metadata is in device tree format and XRT
+	  driver uses it to discover HW subsystems behind PCIe BAR.

drivers/fpga/xrt/metadata/Makefile

@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2020-2021 Xilinx, Inc. All rights reserved.
+#
+# Authors: Sonal.Santan@xilinx.com
+#
+
+FULL_XRT_PATH=$(srctree)/$(src)/..
+FULL_DTC_PATH=$(srctree)/scripts/dtc/libfdt
+
+obj-$(CONFIG_FPGA_XRT_METADATA) += xrt-md.o
+
+xrt-md-objs := metadata.o
+
+ccflags-y := -I$(FULL_XRT_PATH)/include	\
+	-I$(FULL_DTC_PATH)

drivers/fpga/xrt/mgmt/Kconfig

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Xilinx XRT FPGA device configuration
+#
+
+config FPGA_XRT_XMGMT
+	tristate "Xilinx Alveo Management Driver"
+	depends on HWMON && PCI && FPGA_XRT_LIB
+	select FPGA_XRT_METADATA
+	select FPGA_BRIDGE
+	select FPGA_REGION
+	help
+	  Select this option to enable XRT PCIe driver for Xilinx Alveo FPGA.
+	  This driver provides interfaces for userspace application to access
+	  Alveo FPGA device.

drivers/fpga/xrt/mgmt/Makefile

@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2020-2021 Xilinx, Inc. All rights reserved.
+#
+# Authors: Sonal.Santan@xilinx.com
+#
+
+FULL_XRT_PATH=$(srctree)/$(src)/..
+FULL_DTC_PATH=$(srctree)/scripts/dtc/libfdt
+
+obj-$(CONFIG_FPGA_XRT_XMGMT)	+= xmgmt.o
+
+xmgmt-objs := root.o		\
+	   main.o		\
+	   fmgr-drv.o		\
+	   main-region.o
+
+ccflags-y := -I$(FULL_XRT_PATH)/include		\
+	-I$(FULL_DTC_PATH)