LinuxLists.cc - [PATCH 0/7] fpga: reorganize to subdirs

2021-06-09 15:19:45

Subject: [PATCH 0/7] fpga: reorganize to subdirs

From: Tom Rix <[email protected]>

The incoming xrt patchset has a toplevel subdir xrt/
The current fpga/ uses a single dir with filename prefixes to subdivide owners
For consistency, there should be only one way to organize the fpga/ dir.
Because the subdir model scales better, refactor to use it.
The discussion wrt xrt is here:
https://lore.kernel.org/linux-fpga/[email protected]/

Follow drivers/net/ethernet/ which has control configs
NET_VENDOR_BLA that map to drivers/net/ethernet/bla
Since fpgas do not have many vendors, drop the 'VENDOR' and use
FPGA_BLA.

There are several new subdirs
altera/
dfl/
lattice/
xilinx/

Each subdir has a Kconfig that has a new/reused

if FPGA_BLA
... existing configs ...
endif FPGA_BLA

Which is sourced into the main fpga/Kconfig

Each subdir has a Makefile whose transversal is controlled in the
fpga/Makefile by

obj-$(CONFIG_FPGA_BLA) += bla/

For many of the moved files, they had a prefix bla-* that matched their
new subdir dir name bla/. Those filename are overspecified. So they
were simplified by removing the 'bla-' prefix. If they were *.h files
their guards were also changed.

Some cleanup to arrange thing alphabetically and make fpga/Makefile's
whitespace look more like net/'s

Tom Rix (7):
fpga: dfl: reorganize to subdir layout
fpga: xilinx: reorganize to subdir layout
fpga: altera: reorganize to subdir layout
fpga: lattice: reorganize to subdir layout
fpga: dfl: remove dfl- prefix on files
fpga: xilinx: remove xilinx- prefix on files
fpga: altera: remove altera- prefix on files

Documentation/fpga/dfl.rst | 4 +-
MAINTAINERS | 2 +-
drivers/fpga/Kconfig | 204 +-----------------
drivers/fpga/Makefile | 47 +---
drivers/fpga/altera/Kconfig | 79 +++++++
drivers/fpga/altera/Makefile | 12 ++
drivers/fpga/{altera-cvp.c => altera/cvp.c} | 0
.../fpga2sdram.c} | 0
.../freeze-bridge.c} | 0
.../{altera-hps2fpga.c => altera/hps2fpga.c} | 0
.../pr-ip-core-plat.c} | 0
.../pr-ip-core.c} | 0
.../fpga/{altera-ps-spi.c => altera/ps-spi.c} | 0
drivers/fpga/{ => altera}/socfpga-a10.c | 0
drivers/fpga/{ => altera}/socfpga.c | 0
drivers/fpga/{ => altera}/stratix10-soc.c | 0
drivers/fpga/{ => altera}/ts73xx-fpga.c | 0
drivers/fpga/dfl/Kconfig | 80 +++++++
drivers/fpga/dfl/Makefile | 17 ++
.../afu-dma-region.c} | 2 +-
.../fpga/{dfl-afu-error.c => dfl/afu-error.c} | 2 +-
.../fpga/{dfl-afu-main.c => dfl/afu-main.c} | 2 +-
.../{dfl-afu-region.c => dfl/afu-region.c} | 2 +-
drivers/fpga/{dfl-afu.h => dfl/afu.h} | 6 +-
drivers/fpga/{ => dfl}/dfl.c | 0
drivers/fpga/{ => dfl}/dfl.h | 0
drivers/fpga/{dfl-fme-br.c => dfl/fme-br.c} | 2 +-
.../fpga/{dfl-fme-error.c => dfl/fme-error.c} | 2 +-
.../fpga/{dfl-fme-main.c => dfl/fme-main.c} | 2 +-
drivers/fpga/{dfl-fme-mgr.c => dfl/fme-mgr.c} | 2 +-
.../fpga/{dfl-fme-perf.c => dfl/fme-perf.c} | 2 +-
drivers/fpga/{dfl-fme-pr.c => dfl/fme-pr.c} | 4 +-
drivers/fpga/{dfl-fme-pr.h => dfl/fme-pr.h} | 6 +-
.../{dfl-fme-region.c => dfl/fme-region.c} | 2 +-
drivers/fpga/{dfl-fme.h => dfl/fme.h} | 6 +-
.../{dfl-n3000-nios.c => dfl/n3000-nios.c} | 0
drivers/fpga/{dfl-pci.c => dfl/pci.c} | 0
drivers/fpga/lattice/Kconfig | 22 ++
drivers/fpga/lattice/Makefile | 4 +
drivers/fpga/{ => lattice}/ice40-spi.c | 0
drivers/fpga/{ => lattice}/machxo2-spi.c | 0
drivers/fpga/xilinx/Kconfig | 48 +++++
drivers/fpga/xilinx/Makefile | 8 +
.../pr-decoupler.c} | 0
drivers/fpga/{xilinx-spi.c => xilinx/spi.c} | 0
drivers/fpga/{ => xilinx}/zynq-fpga.c | 0
drivers/fpga/{ => xilinx}/zynqmp-fpga.c | 0
47 files changed, 306 insertions(+), 263 deletions(-)
create mode 100644 drivers/fpga/altera/Kconfig
create mode 100644 drivers/fpga/altera/Makefile
rename drivers/fpga/{altera-cvp.c => altera/cvp.c} (100%)
rename drivers/fpga/{altera-fpga2sdram.c => altera/fpga2sdram.c} (100%)
rename drivers/fpga/{altera-freeze-bridge.c => altera/freeze-bridge.c} (100%)
rename drivers/fpga/{altera-hps2fpga.c => altera/hps2fpga.c} (100%)
rename drivers/fpga/{altera-pr-ip-core-plat.c => altera/pr-ip-core-plat.c} (100%)
rename drivers/fpga/{altera-pr-ip-core.c => altera/pr-ip-core.c} (100%)
rename drivers/fpga/{altera-ps-spi.c => altera/ps-spi.c} (100%)
rename drivers/fpga/{ => altera}/socfpga-a10.c (100%)
rename drivers/fpga/{ => altera}/socfpga.c (100%)
rename drivers/fpga/{ => altera}/stratix10-soc.c (100%)
rename drivers/fpga/{ => altera}/ts73xx-fpga.c (100%)
create mode 100644 drivers/fpga/dfl/Kconfig
create mode 100644 drivers/fpga/dfl/Makefile
rename drivers/fpga/{dfl-afu-dma-region.c => dfl/afu-dma-region.c} (99%)
rename drivers/fpga/{dfl-afu-error.c => dfl/afu-error.c} (99%)
rename drivers/fpga/{dfl-afu-main.c => dfl/afu-main.c} (99%)
rename drivers/fpga/{dfl-afu-region.c => dfl/afu-region.c} (99%)
rename drivers/fpga/{dfl-afu.h => dfl/afu.h} (98%)
rename drivers/fpga/{ => dfl}/dfl.c (100%)
rename drivers/fpga/{ => dfl}/dfl.h (100%)
rename drivers/fpga/{dfl-fme-br.c => dfl/fme-br.c} (99%)
rename drivers/fpga/{dfl-fme-error.c => dfl/fme-error.c} (99%)
rename drivers/fpga/{dfl-fme-main.c => dfl/fme-main.c} (99%)
rename drivers/fpga/{dfl-fme-mgr.c => dfl/fme-mgr.c} (99%)
rename drivers/fpga/{dfl-fme-perf.c => dfl/fme-perf.c} (99%)
rename drivers/fpga/{dfl-fme-pr.c => dfl/fme-pr.c} (99%)
rename drivers/fpga/{dfl-fme-pr.h => dfl/fme-pr.h} (96%)
rename drivers/fpga/{dfl-fme-region.c => dfl/fme-region.c} (98%)
rename drivers/fpga/{dfl-fme.h => dfl/fme.h} (95%)
rename drivers/fpga/{dfl-n3000-nios.c => dfl/n3000-nios.c} (100%)
rename drivers/fpga/{dfl-pci.c => dfl/pci.c} (100%)
create mode 100644 drivers/fpga/lattice/Kconfig
create mode 100644 drivers/fpga/lattice/Makefile
rename drivers/fpga/{ => lattice}/ice40-spi.c (100%)
rename drivers/fpga/{ => lattice}/machxo2-spi.c (100%)
create mode 100644 drivers/fpga/xilinx/Kconfig
create mode 100644 drivers/fpga/xilinx/Makefile
rename drivers/fpga/{xilinx-pr-decoupler.c => xilinx/pr-decoupler.c} (100%)
rename drivers/fpga/{xilinx-spi.c => xilinx/spi.c} (100%)
rename drivers/fpga/{ => xilinx}/zynq-fpga.c (100%)
rename drivers/fpga/{ => xilinx}/zynqmp-fpga.c (100%)

--
2.26.3

2021-06-09 17:29:36

by Tom Rix

[permalink] [raw]

Subject: [PATCH 2/7] fpga: xilinx: reorganize to subdir layout

From: Tom Rix <[email protected]>

Create a xilinx/ subdir
Move xilinx-* and zynq* files to it.
Add a Kconfig and Makefile

Signed-off-by: Tom Rix <[email protected]>
---
drivers/fpga/Kconfig | 40 +---------------
drivers/fpga/Makefile | 5 +-
drivers/fpga/xilinx/Kconfig | 48 +++++++++++++++++++
drivers/fpga/xilinx/Makefile | 8 ++++
.../fpga/{ => xilinx}/xilinx-pr-decoupler.c | 0
drivers/fpga/{ => xilinx}/xilinx-spi.c | 0
drivers/fpga/{ => xilinx}/zynq-fpga.c | 0
drivers/fpga/{ => xilinx}/zynqmp-fpga.c | 0
8 files changed, 58 insertions(+), 43 deletions(-)
create mode 100644 drivers/fpga/xilinx/Kconfig
create mode 100644 drivers/fpga/xilinx/Makefile
rename drivers/fpga/{ => xilinx}/xilinx-pr-decoupler.c (100%)
rename drivers/fpga/{ => xilinx}/xilinx-spi.c (100%)
rename drivers/fpga/{ => xilinx}/zynq-fpga.c (100%)
rename drivers/fpga/{ => xilinx}/zynqmp-fpga.c (100%)

diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index c427b25cc6f7e..657703b41b06e 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -52,25 +52,12 @@ config FPGA_MGR_ALTERA_CVP
FPGA manager driver support for Arria-V, Cyclone-V, Stratix-V,
Arria 10 and Stratix10 Altera FPGAs using the CvP interface over PCIe.

-config FPGA_MGR_ZYNQ_FPGA
- tristate "Xilinx Zynq FPGA"
- depends on ARCH_ZYNQ || COMPILE_TEST
- help
- FPGA manager driver support for Xilinx Zynq FPGAs.
-
config FPGA_MGR_STRATIX10_SOC
tristate "Intel Stratix10 SoC FPGA Manager"
depends on (ARCH_INTEL_SOCFPGA && INTEL_STRATIX10_SERVICE)
help
FPGA manager driver support for the Intel Stratix10 SoC.

-config FPGA_MGR_XILINX_SPI
- tristate "Xilinx Configuration over Slave Serial (SPI)"
- depends on SPI
- help
- FPGA manager driver support for Xilinx FPGA configuration
- over slave serial interface.
-
config FPGA_MGR_ICE40_SPI
tristate "Lattice iCE40 SPI"
depends on OF && SPI
@@ -113,23 +100,6 @@ config ALTERA_FREEZE_BRIDGE
isolate one region of the FPGA from the busses while that
region is being reprogrammed.

-config XILINX_PR_DECOUPLER
- tristate "Xilinx LogiCORE PR Decoupler"
- depends on FPGA_BRIDGE
- depends on HAS_IOMEM
- help
- Say Y to enable drivers for Xilinx LogiCORE PR Decoupler
- or Xilinx Dynamic Function eXchnage AIX Shutdown Manager.
- The PR Decoupler exists in the FPGA fabric to isolate one
- region of the FPGA from the busses while that region is
- being reprogrammed during partial reconfig.
- The Dynamic Function eXchange AXI shutdown manager prevents
- AXI traffic from passing through the bridge. The controller
- safely handles AXI4MM and AXI4-Lite interfaces on a
- Reconfigurable Partition when it is undergoing dynamic
- reconfiguration, preventing the system deadlock that can
- occur if AXI transactions are interrupted by DFX.
-
config FPGA_REGION
tristate "FPGA Region"
depends on FPGA_BRIDGE
@@ -146,14 +116,6 @@ config OF_FPGA_REGION
overlay.

source "drivers/fpga/dfl/Kconfig"
-
-config FPGA_MGR_ZYNQMP_FPGA
- tristate "Xilinx ZynqMP FPGA"
- depends on ZYNQMP_FIRMWARE || (!ZYNQMP_FIRMWARE && COMPILE_TEST)
- help
- FPGA manager driver support for Xilinx ZynqMP FPGAs.
- This driver uses the processor configuration port(PCAP)
- to configure the programmable logic(PL) through PS
- on ZynqMP SoC.
+source "drivers/fpga/xilinx/Kconfig"

endif # FPGA
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
index bda74e54ce390..0868c7c4264d8 100644
--- a/drivers/fpga/Makefile
+++ b/drivers/fpga/Makefile
@@ -15,9 +15,6 @@ obj-$(CONFIG_FPGA_MGR_SOCFPGA) += socfpga.o
obj-$(CONFIG_FPGA_MGR_SOCFPGA_A10) += socfpga-a10.o
obj-$(CONFIG_FPGA_MGR_STRATIX10_SOC) += stratix10-soc.o
obj-$(CONFIG_FPGA_MGR_TS73XX) += ts73xx-fpga.o
-obj-$(CONFIG_FPGA_MGR_XILINX_SPI) += xilinx-spi.o
-obj-$(CONFIG_FPGA_MGR_ZYNQ_FPGA) += zynq-fpga.o
-obj-$(CONFIG_FPGA_MGR_ZYNQMP_FPGA) += zynqmp-fpga.o
obj-$(CONFIG_ALTERA_PR_IP_CORE) += altera-pr-ip-core.o
obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT) += altera-pr-ip-core-plat.o

@@ -25,10 +22,10 @@ obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT) += altera-pr-ip-core-plat.o
obj-$(CONFIG_FPGA_BRIDGE) += fpga-bridge.o
obj-$(CONFIG_SOCFPGA_FPGA_BRIDGE) += altera-hps2fpga.o altera-fpga2sdram.o
obj-$(CONFIG_ALTERA_FREEZE_BRIDGE) += altera-freeze-bridge.o
-obj-$(CONFIG_XILINX_PR_DECOUPLER) += xilinx-pr-decoupler.o

# High Level Interfaces
obj-$(CONFIG_FPGA_REGION) += fpga-region.o
obj-$(CONFIG_OF_FPGA_REGION) += of-fpga-region.o

obj-$(CONFIG_FPGA_DFL) += dfl/
+obj-$(CONFIG_FPGA_XILINX) += xilinx/
diff --git a/drivers/fpga/xilinx/Kconfig b/drivers/fpga/xilinx/Kconfig
new file mode 100644
index 0000000000000..1ef0b6a34ae0c
--- /dev/null
+++ b/drivers/fpga/xilinx/Kconfig
@@ -0,0 +1,48 @@
+config FPGA_XILINX
+ bool "Xilinx Devices"
+ default y
+ help
+ If you have a xilinx fpga, say Y.
+
+if FPGA_XILINX
+
+config FPGA_MGR_ZYNQ_FPGA
+ tristate "Xilinx Zynq FPGA"
+ depends on ARCH_ZYNQ || COMPILE_TEST
+ help
+ FPGA manager driver support for Xilinx Zynq FPGAs.
+
+config FPGA_MGR_ZYNQMP_FPGA
+ tristate "Xilinx ZynqMP FPGA"
+ depends on ZYNQMP_FIRMWARE || (!ZYNQMP_FIRMWARE && COMPILE_TEST)
+ help
+ FPGA manager driver support for Xilinx ZynqMP FPGAs.
+ This driver uses the processor configuration port(PCAP)
+ to configure the programmable logic(PL) through PS
+ on ZynqMP SoC.
+
+config XILINX_PR_DECOUPLER
+ tristate "Xilinx LogiCORE PR Decoupler"
+ depends on FPGA_BRIDGE
+ depends on HAS_IOMEM
+ help
+ Say Y to enable drivers for Xilinx LogiCORE PR Decoupler
+ or Xilinx Dynamic Function eXchnage AIX Shutdown Manager.
+ The PR Decoupler exists in the FPGA fabric to isolate one
+ region of the FPGA from the busses while that region is
+ being reprogrammed during partial reconfig.
+ The Dynamic Function eXchange AXI shutdown manager prevents
+ AXI traffic from passing through the bridge. The controller
+ safely handles AXI4MM and AXI4-Lite interfaces on a
+ Reconfigurable Partition when it is undergoing dynamic
+ reconfiguration, preventing the system deadlock that can
+ occur if AXI transactions are interrupted by DFX.
+
+config FPGA_MGR_XILINX_SPI
+ tristate "Xilinx Configuration over Slave Serial (SPI)"
+ depends on SPI
+ help
+ FPGA manager driver support for Xilinx FPGA configuration
+ over slave serial interface.
+
+endif #FPGA_XILINX
diff --git a/drivers/fpga/xilinx/Makefile b/drivers/fpga/xilinx/Makefile
new file mode 100644
index 0000000000000..7bb7543412790
--- /dev/null
+++ b/drivers/fpga/xilinx/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_XILINX_PR_DECOUPLER) += xilinx-pr-decoupler.o
+obj-$(CONFIG_FPGA_MGR_XILINX_SPI) += xilinx-spi.o
+obj-$(CONFIG_FPGA_MGR_ZYNQ_FPGA) += zynq-fpga.o
+obj-$(CONFIG_FPGA_MGR_ZYNQMP_FPGA) += zynqmp-fpga.o
+
+
diff --git a/drivers/fpga/xilinx-pr-decoupler.c b/drivers/fpga/xilinx/xilinx-pr-decoupler.c
similarity index 100%
rename from drivers/fpga/xilinx-pr-decoupler.c
rename to drivers/fpga/xilinx/xilinx-pr-decoupler.c
diff --git a/drivers/fpga/xilinx-spi.c b/drivers/fpga/xilinx/xilinx-spi.c
similarity index 100%
rename from drivers/fpga/xilinx-spi.c
rename to drivers/fpga/xilinx/xilinx-spi.c
diff --git a/drivers/fpga/zynq-fpga.c b/drivers/fpga/xilinx/zynq-fpga.c
similarity index 100%
rename from drivers/fpga/zynq-fpga.c
rename to drivers/fpga/xilinx/zynq-fpga.c
diff --git a/drivers/fpga/zynqmp-fpga.c b/drivers/fpga/xilinx/zynqmp-fpga.c
similarity index 100%
rename from drivers/fpga/zynqmp-fpga.c
rename to drivers/fpga/xilinx/zynqmp-fpga.c
--
2.26.3

2021-06-09 18:44:42

by Tom Rix

[permalink] [raw]

Subject: [PATCH 0/7] fpga: reorganize to subdirs

2021-06-09 18:45:29

by Tom Rix

[permalink] [raw]

Subject: [PATCH 1/7] fpga: dfl: reorganize to subdir layout

From: Tom Rix <[email protected]>

Create a dfl/ subdir
Move dfl-* files to it.
Add a Kconfig and Makefile

Because FPGA_DFL is now used in dfl/Kconfig in a if/endif
block, all the other configs in dfl/Kconfig implicitly depend
on FPGA_DFL. So the explict dependence can be removed. Also
since FPGA_DFL depends on HAS_IOMEM, it can be removed from the
other configs.

Signed-off-by: Tom Rix <[email protected]>
---
MAINTAINERS | 2 +-
drivers/fpga/Kconfig | 80 +-------------------
drivers/fpga/Makefile | 18 +----
drivers/fpga/dfl/Kconfig | 81 +++++++++++++++++++++
drivers/fpga/dfl/Makefile | 19 +++++
drivers/fpga/{ => dfl}/dfl-afu-dma-region.c | 0
drivers/fpga/{ => dfl}/dfl-afu-error.c | 0
drivers/fpga/{ => dfl}/dfl-afu-main.c | 0
drivers/fpga/{ => dfl}/dfl-afu-region.c | 0
drivers/fpga/{ => dfl}/dfl-afu.h | 0
drivers/fpga/{ => dfl}/dfl-fme-br.c | 0
drivers/fpga/{ => dfl}/dfl-fme-error.c | 0
drivers/fpga/{ => dfl}/dfl-fme-main.c | 0
drivers/fpga/{ => dfl}/dfl-fme-mgr.c | 0
drivers/fpga/{ => dfl}/dfl-fme-perf.c | 0
drivers/fpga/{ => dfl}/dfl-fme-pr.c | 0
drivers/fpga/{ => dfl}/dfl-fme-pr.h | 0
drivers/fpga/{ => dfl}/dfl-fme-region.c | 0
drivers/fpga/{ => dfl}/dfl-fme.h | 0
drivers/fpga/{ => dfl}/dfl-n3000-nios.c | 0
drivers/fpga/{ => dfl}/dfl-pci.c | 0
drivers/fpga/{ => dfl}/dfl.c | 0
drivers/fpga/{ => dfl}/dfl.h | 0
23 files changed, 103 insertions(+), 97 deletions(-)
create mode 100644 drivers/fpga/dfl/Kconfig
create mode 100644 drivers/fpga/dfl/Makefile
rename drivers/fpga/{ => dfl}/dfl-afu-dma-region.c (100%)
rename drivers/fpga/{ => dfl}/dfl-afu-error.c (100%)
rename drivers/fpga/{ => dfl}/dfl-afu-main.c (100%)
rename drivers/fpga/{ => dfl}/dfl-afu-region.c (100%)
rename drivers/fpga/{ => dfl}/dfl-afu.h (100%)
rename drivers/fpga/{ => dfl}/dfl-fme-br.c (100%)
rename drivers/fpga/{ => dfl}/dfl-fme-error.c (100%)
rename drivers/fpga/{ => dfl}/dfl-fme-main.c (100%)
rename drivers/fpga/{ => dfl}/dfl-fme-mgr.c (100%)
rename drivers/fpga/{ => dfl}/dfl-fme-perf.c (100%)
rename drivers/fpga/{ => dfl}/dfl-fme-pr.c (100%)
rename drivers/fpga/{ => dfl}/dfl-fme-pr.h (100%)
rename drivers/fpga/{ => dfl}/dfl-fme-region.c (100%)
rename drivers/fpga/{ => dfl}/dfl-fme.h (100%)
rename drivers/fpga/{ => dfl}/dfl-n3000-nios.c (100%)
rename drivers/fpga/{ => dfl}/dfl-pci.c (100%)
rename drivers/fpga/{ => dfl}/dfl.c (100%)
rename drivers/fpga/{ => dfl}/dfl.h (100%)

diff --git a/MAINTAINERS b/MAINTAINERS
index 1be6895a143d2..46ef3af06ba53 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7201,7 +7201,7 @@ L: [email protected]
S: Maintained
F: Documentation/ABI/testing/sysfs-bus-dfl*
F: Documentation/fpga/dfl.rst
-F: drivers/fpga/dfl*
+F: drivers/fpga/dfl/
F: drivers/uio/uio_dfl.c
F: include/linux/dfl.h
F: include/uapi/linux/fpga-dfl.h
diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index 33e15058d0dc7..c427b25cc6f7e 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -145,85 +145,7 @@ config OF_FPGA_REGION
Support for loading FPGA images by applying a Device Tree
overlay.

-config FPGA_DFL
- tristate "FPGA Device Feature List (DFL) support"
- select FPGA_BRIDGE
- select FPGA_REGION
- depends on HAS_IOMEM
- help
- Device Feature List (DFL) defines a feature list structure that
- creates a linked list of feature headers within the MMIO space
- to provide an extensible way of adding features for FPGA.
- Driver can walk through the feature headers to enumerate feature
- devices (e.g. FPGA Management Engine, Port and Accelerator
- Function Unit) and their private features for target FPGA devices.
-
- Select this option to enable common support for Field-Programmable
- Gate Array (FPGA) solutions which implement Device Feature List.
- It provides enumeration APIs and feature device infrastructure.
-
-config FPGA_DFL_FME
- tristate "FPGA DFL FME Driver"
- depends on FPGA_DFL && HWMON && PERF_EVENTS
- help
- The FPGA Management Engine (FME) is a feature device implemented
- under Device Feature List (DFL) framework. Select this option to
- enable the platform device driver for FME which implements all
- FPGA platform level management features. There shall be one FME
- per DFL based FPGA device.
-
-config FPGA_DFL_FME_MGR
- tristate "FPGA DFL FME Manager Driver"
- depends on FPGA_DFL_FME && HAS_IOMEM
- help
- Say Y to enable FPGA Manager driver for FPGA Management Engine.
-
-config FPGA_DFL_FME_BRIDGE
- tristate "FPGA DFL FME Bridge Driver"
- depends on FPGA_DFL_FME && HAS_IOMEM
- help
- Say Y to enable FPGA Bridge driver for FPGA Management Engine.
-
-config FPGA_DFL_FME_REGION
- tristate "FPGA DFL FME Region Driver"
- depends on FPGA_DFL_FME && HAS_IOMEM
- help
- Say Y to enable FPGA Region driver for FPGA Management Engine.
-
-config FPGA_DFL_AFU
- tristate "FPGA DFL AFU Driver"
- depends on FPGA_DFL
- help
- This is the driver for FPGA Accelerated Function Unit (AFU) which
- implements AFU and Port management features. A User AFU connects
- to the FPGA infrastructure via a Port. There may be more than one
- Port/AFU per DFL based FPGA device.
-
-config FPGA_DFL_NIOS_INTEL_PAC_N3000
- tristate "FPGA DFL NIOS Driver for Intel PAC N3000"
- depends on FPGA_DFL
- select REGMAP
- help
- This is the driver for the N3000 Nios private feature on Intel
- PAC (Programmable Acceleration Card) N3000. It communicates
- with the embedded Nios processor to configure the retimers on
- the card. It also instantiates the SPI master (spi-altera) for
- the card's BMC (Board Management Controller).
-
-config FPGA_DFL_PCI
- tristate "FPGA DFL PCIe Device Driver"
- depends on PCI && FPGA_DFL
- help
- Select this option to enable PCIe driver for PCIe-based
- Field-Programmable Gate Array (FPGA) solutions which implement
- the Device Feature List (DFL). This driver provides interfaces
- for userspace applications to configure, enumerate, open and access
- FPGA accelerators on the FPGA DFL devices, enables system level
- management functions such as FPGA partial reconfiguration, power
- management and virtualization with DFL framework and DFL feature
- device drivers.
-
- To compile this as a module, choose M here.
+source "drivers/fpga/dfl/Kconfig"

config FPGA_MGR_ZYNQMP_FPGA
tristate "Xilinx ZynqMP FPGA"
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
index 18dc9885883a2..bda74e54ce390 100644
--- a/drivers/fpga/Makefile
+++ b/drivers/fpga/Makefile
@@ -31,20 +31,4 @@ obj-$(CONFIG_XILINX_PR_DECOUPLER) += xilinx-pr-decoupler.o
obj-$(CONFIG_FPGA_REGION) += fpga-region.o
obj-$(CONFIG_OF_FPGA_REGION) += of-fpga-region.o

-# FPGA Device Feature List Support
-obj-$(CONFIG_FPGA_DFL) += dfl.o
-obj-$(CONFIG_FPGA_DFL_FME) += dfl-fme.o
-obj-$(CONFIG_FPGA_DFL_FME_MGR) += dfl-fme-mgr.o
-obj-$(CONFIG_FPGA_DFL_FME_BRIDGE) += dfl-fme-br.o
-obj-$(CONFIG_FPGA_DFL_FME_REGION) += dfl-fme-region.o
-obj-$(CONFIG_FPGA_DFL_AFU) += dfl-afu.o
-
-dfl-fme-objs := dfl-fme-main.o dfl-fme-pr.o dfl-fme-error.o
-dfl-fme-objs += dfl-fme-perf.o
-dfl-afu-objs := dfl-afu-main.o dfl-afu-region.o dfl-afu-dma-region.o
-dfl-afu-objs += dfl-afu-error.o
-
-obj-$(CONFIG_FPGA_DFL_NIOS_INTEL_PAC_N3000) += dfl-n3000-nios.o
-
-# Drivers for FPGAs which implement DFL
-obj-$(CONFIG_FPGA_DFL_PCI) += dfl-pci.o
+obj-$(CONFIG_FPGA_DFL) += dfl/
diff --git a/drivers/fpga/dfl/Kconfig b/drivers/fpga/dfl/Kconfig
new file mode 100644
index 0000000000000..1f5ce42f63e44
--- /dev/null
+++ b/drivers/fpga/dfl/Kconfig
@@ -0,0 +1,81 @@
+config FPGA_DFL
+ tristate "FPGA Device Feature List (DFL) support"
+ select FPGA_BRIDGE
+ select FPGA_REGION
+ depends on HAS_IOMEM
+ help
+ Device Feature List (DFL) defines a feature list structure that
+ creates a linked list of feature headers within the MMIO space
+ to provide an extensible way of adding features for FPGA.
+ Driver can walk through the feature headers to enumerate feature
+ devices (e.g. FPGA Management Engine, Port and Accelerator
+ Function Unit) and their private features for target FPGA devices.
+
+ Select this option to enable common support for Field-Programmable
+ Gate Array (FPGA) solutions which implement Device Feature List.
+ It provides enumeration APIs and feature device infrastructure.
+
+if FPGA_DFL
+
+config FPGA_DFL_FME
+ tristate "FPGA DFL FME Driver"
+ depends on HWMON && PERF_EVENTS
+ help
+ The FPGA Management Engine (FME) is a feature device implemented
+ under Device Feature List (DFL) framework. Select this option to
+ enable the platform device driver for FME which implements all
+ FPGA platform level management features. There shall be one FME
+ per DFL based FPGA device.
+
+config FPGA_DFL_FME_MGR
+ tristate "FPGA DFL FME Manager Driver"
+ depends on FPGA_DFL_FME
+ help
+ Say Y to enable FPGA Manager driver for FPGA Management Engine.
+
+config FPGA_DFL_FME_BRIDGE
+ tristate "FPGA DFL FME Bridge Driver"
+ depends on FPGA_DFL_FME
+ help
+ Say Y to enable FPGA Bridge driver for FPGA Management Engine.
+
+config FPGA_DFL_FME_REGION
+ tristate "FPGA DFL FME Region Driver"
+ depends on FPGA_DFL_FME
+ help
+ Say Y to enable FPGA Region driver for FPGA Management Engine.
+
+config FPGA_DFL_AFU
+ tristate "FPGA DFL AFU Driver"
+ help
+ This is the driver for FPGA Accelerated Function Unit (AFU) which
+ implements AFU and Port management features. A User AFU connects
+ to the FPGA infrastructure via a Port. There may be more than one
+ Port/AFU per DFL based FPGA device.
+
+config FPGA_DFL_NIOS_INTEL_PAC_N3000
+ tristate "FPGA DFL NIOS Driver for Intel PAC N3000"
+ select REGMAP
+ help
+ This is the driver for the N3000 Nios private feature on Intel
+ PAC (Programmable Acceleration Card) N3000. It communicates
+ with the embedded Nios processor to configure the retimers on
+ the card. It also instantiates the SPI master (spi-altera) for
+ the card's BMC (Board Management Controller).
+
+config FPGA_DFL_PCI
+ tristate "FPGA DFL PCIe Device Driver"
+ depends on PCI
+ help
+ Select this option to enable PCIe driver for PCIe-based
+ Field-Programmable Gate Array (FPGA) solutions which implement
+ the Device Feature List (DFL). This driver provides interfaces
+ for userspace applications to configure, enumerate, open and access
+ FPGA accelerators on the FPGA DFL devices, enables system level
+ management functions such as FPGA partial reconfiguration, power
+ management and virtualization with DFL framework and DFL feature
+ device drivers.
+
+ To compile this as a module, choose M here.
+
+endif #FPGA_DFL
diff --git a/drivers/fpga/dfl/Makefile b/drivers/fpga/dfl/Makefile
new file mode 100644
index 0000000000000..724792039026f
--- /dev/null
+++ b/drivers/fpga/dfl/Makefile
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# FPGA Device Feature List (DFL) Support
+obj-$(CONFIG_FPGA_DFL) += dfl.o
+obj-$(CONFIG_FPGA_DFL_AFU) += dfl-afu.o
+obj-$(CONFIG_FPGA_DFL_FME) += dfl-fme.o
+obj-$(CONFIG_FPGA_DFL_FME_BRIDGE) += dfl-fme-br.o
+obj-$(CONFIG_FPGA_DFL_FME_MGR) += dfl-fme-mgr.o
+obj-$(CONFIG_FPGA_DFL_FME_REGION) += dfl-fme-region.o
+obj-$(CONFIG_FPGA_DFL_NIOS_INTEL_PAC_N3000) += dfl-n3000-nios.o
+obj-$(CONFIG_FPGA_DFL_PCI) += dfl-pci.o
+
+dfl-fme-objs := dfl-fme-main.o dfl-fme-pr.o dfl-fme-error.o \
+ dfl-fme-perf.o
+dfl-afu-objs := dfl-afu-main.o dfl-afu-region.o dfl-afu-dma-region.o \
+ dfl-afu-error.o
+
+
+
diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl/dfl-afu-dma-region.c
similarity index 100%
rename from drivers/fpga/dfl-afu-dma-region.c
rename to drivers/fpga/dfl/dfl-afu-dma-region.c
diff --git a/drivers/fpga/dfl-afu-error.c b/drivers/fpga/dfl/dfl-afu-error.c
similarity index 100%
rename from drivers/fpga/dfl-afu-error.c
rename to drivers/fpga/dfl/dfl-afu-error.c
diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl/dfl-afu-main.c
similarity index 100%
rename from drivers/fpga/dfl-afu-main.c
rename to drivers/fpga/dfl/dfl-afu-main.c
diff --git a/drivers/fpga/dfl-afu-region.c b/drivers/fpga/dfl/dfl-afu-region.c
similarity index 100%
rename from drivers/fpga/dfl-afu-region.c
rename to drivers/fpga/dfl/dfl-afu-region.c
diff --git a/drivers/fpga/dfl-afu.h b/drivers/fpga/dfl/dfl-afu.h
similarity index 100%
rename from drivers/fpga/dfl-afu.h
rename to drivers/fpga/dfl/dfl-afu.h
diff --git a/drivers/fpga/dfl-fme-br.c b/drivers/fpga/dfl/dfl-fme-br.c
similarity index 100%
rename from drivers/fpga/dfl-fme-br.c
rename to drivers/fpga/dfl/dfl-fme-br.c
diff --git a/drivers/fpga/dfl-fme-error.c b/drivers/fpga/dfl/dfl-fme-error.c
similarity index 100%
rename from drivers/fpga/dfl-fme-error.c
rename to drivers/fpga/dfl/dfl-fme-error.c
diff --git a/drivers/fpga/dfl-fme-main.c b/drivers/fpga/dfl/dfl-fme-main.c
similarity index 100%
rename from drivers/fpga/dfl-fme-main.c
rename to drivers/fpga/dfl/dfl-fme-main.c
diff --git a/drivers/fpga/dfl-fme-mgr.c b/drivers/fpga/dfl/dfl-fme-mgr.c
similarity index 100%
rename from drivers/fpga/dfl-fme-mgr.c
rename to drivers/fpga/dfl/dfl-fme-mgr.c
diff --git a/drivers/fpga/dfl-fme-perf.c b/drivers/fpga/dfl/dfl-fme-perf.c
similarity index 100%
rename from drivers/fpga/dfl-fme-perf.c
rename to drivers/fpga/dfl/dfl-fme-perf.c
diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl/dfl-fme-pr.c
similarity index 100%
rename from drivers/fpga/dfl-fme-pr.c
rename to drivers/fpga/dfl/dfl-fme-pr.c
diff --git a/drivers/fpga/dfl-fme-pr.h b/drivers/fpga/dfl/dfl-fme-pr.h
similarity index 100%
rename from drivers/fpga/dfl-fme-pr.h
rename to drivers/fpga/dfl/dfl-fme-pr.h
diff --git a/drivers/fpga/dfl-fme-region.c b/drivers/fpga/dfl/dfl-fme-region.c
similarity index 100%
rename from drivers/fpga/dfl-fme-region.c
rename to drivers/fpga/dfl/dfl-fme-region.c
diff --git a/drivers/fpga/dfl-fme.h b/drivers/fpga/dfl/dfl-fme.h
similarity index 100%
rename from drivers/fpga/dfl-fme.h
rename to drivers/fpga/dfl/dfl-fme.h
diff --git a/drivers/fpga/dfl-n3000-nios.c b/drivers/fpga/dfl/dfl-n3000-nios.c
similarity index 100%
rename from drivers/fpga/dfl-n3000-nios.c
rename to drivers/fpga/dfl/dfl-n3000-nios.c
diff --git a/drivers/fpga/dfl-pci.c b/drivers/fpga/dfl/dfl-pci.c
similarity index 100%
rename from drivers/fpga/dfl-pci.c
rename to drivers/fpga/dfl/dfl-pci.c
diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl/dfl.c
similarity index 100%
rename from drivers/fpga/dfl.c
rename to drivers/fpga/dfl/dfl.c
diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl/dfl.h
similarity index 100%
rename from drivers/fpga/dfl.h
rename to drivers/fpga/dfl/dfl.h
--
2.26.3