The host buffer depth is hardware specific so it's better to
handle it inside the me and txe hw modules. In me the depth
is read from register in txe it's a constant number.
The value is now retrieved via mei_hbuf_depth accessor,
while it replaces mei_hbuf_max_len.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cleanup conversions between slots and data.
Define MEI_SLOT_SIZE instead of using 4 or sizeof(u32) across
the source code.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ColdFire coprocessor of the Aspeed SoCs. All the pre-requisites have
already been merged, this is the final piece in the puzzle.
This branch also pull gpio/ib-aspeed which is a topic branch already
in gpio/for-next (and thus in next) whic contains pre-requisites.
Finally, there's also a bug fix to the sbefifo driver for some
inconsistent use of a mutex in the error handling code.
-----BEGIN PGP SIGNATURE-----
iQIcBAABAgAGBQJbVqMzAAoJEHM62YSLdExe+aUP/12vNZdYfZLKdEuQRztjUtpO
k1E/jNLnH97GvP6553zcebVrDl/xKzaYlxRrk3d8BovM4VlDv20QPWwc08IjXFPA
+ikIBtWwAevXMuV69hpc253wOutYG7tdrrTKKc6o4rBAR+3DXMLBQ5bbb7SzEypB
JpavulJvFwaxVb2UioQ6AaQ5dWdOjgYyXZicx9bNrTaj8FaY2rIohMXSqeXDqqhX
hxQdRYo/YQWxxCTOSGdUQp9Yyuni1gP4NeHYMZGloFhjGZglo3oTL7aiCtxcFQAQ
KcYY49ESlqIhjdFAFVa0WFStVMFSo7PmIMIFm9tS69av3TKTbZjbnQfjjOcfi05G
0hc4x/st3VJyQmQHhOlOwA/F4KBk0JZWtq3fOoyT297x1Nah+3iuO/8diLcqvkAy
tXepEKj9cJ5igQ0Lvv0QQnwwmDkzMyat3U6GYA5ELwuMtUeifzp1HlXdKDEttSP3
QFG4CgUjG82RHKiFPGB+sEIaZ8CGQR0MsrlQFihI902PM8spw8LoQmGKReEP2qaF
WYERVLZ3r3C0kAIX2+HLInm1YL3bpBFbGJj/LJwnylmOLucCcqd3PlfzykzMZ5hN
+21c8NXs7rRiP1n20NwpXtGGfAV1BgvnkikZ18zbv3uDD66PG2twklsCrEv4sedZ
RzQTFdfwqB83g+ZKgiLi
=C4C6
-----END PGP SIGNATURE-----
Merge tag 'fsi-updates-2018-07-24' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/linux-fsi into char-misc-testing
Ben writes:
This adds support for offloading the FSI low level bitbanging to the
ColdFire coprocessor of the Aspeed SoCs. All the pre-requisites have
already been merged, this is the final piece in the puzzle.
This branch also pull gpio/ib-aspeed which is a topic branch already
in gpio/for-next (and thus in next) whic contains pre-requisites.
Finally, there's also a bug fix to the sbefifo driver for some
inconsistent use of a mutex in the error handling code.
This represents a physical chip in the system and allows
a stable numbering scheme to be passed to udev for userspace
to recognize which chip is which.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Rob Herring <robh@kernel.org>
Some of the exit path missed the unlock. Move the mutex to
an outer function to avoid the problem completely
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The Aspeed AST2x00 can contain a ColdFire v1 coprocessor which
is currently unused on OpenPower systems.
This adds an alternative to the fsi-master-gpio driver that
uses that coprocessor instead of bit banging from the ARM
core itself. The end result is about 4 times faster.
The firmware for the coprocessor and its source code can be
found at https://github.com/ozbenh/cf-fsi and is system specific.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This isn't per-se a real device, it's a pseudo-device that
represents the use of the Aspeed built-in ColdFire to
implement the FSI protocol by bitbanging the GPIOs instead
of doing it from the ARM core.
Thus it's a drop-in replacement for the existing
fsi-master-gpio pseudo-device for use on systems based
on the Aspeed chips. It has most of the same properties,
plus some more needed to operate the coprocessor.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Rob Herring <robh@kernel.org>
There are still quite a few cases where a device might want
to get to a different node of the device-tree, obtain the
resources and map them.
We have of_iomap() and of_io_request_and_map() but they both
have shortcomings, such as not returning the size of the
resource found (which can be useful) and not being "managed".
This adds a devm_of_iomap() that provides all of these and
should probably replace uses of the above in most drivers.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
For those without any license text present or short reference
to GPL, add SPDX tag.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
uio_mmap has multiple fail paths to set return value to nonzero then
goto out. However, it always returns *0* from the *out* at end, and
this will mislead callers who check the return value of this function.
Fixes: 57c5f4df0a ("uio: fix crash after the device is unregistered")
CC: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Hailong Liu <liu.hailong6@zte.com.cn>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Jiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace short statement in comment with proper SPDX
license tag.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Detailed description for this pull request:
1. Release locking when sending the connector state in extcon_sync()
- Previously, extcon used the spinlock before calling the notifier_call_chain
to prevent the scheduled out of task and to prevent the notification delay.
When spinlock is locked for sending the notification, deadlock issue
occured on the side of extcon consumer device. To fix this issue on extcon
consumer device, release locking when sending the connector state.
2. Fix minor issues of extcon provider driver
- extcon-intel-int3496.c uses 'linux/gpio/consumer.h' instead of 'linux/gpio.h'
- extcon-usbc-cors-ec.c adds SPDX license and fix the wrong license information
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=Iuyb
-----END PGP SIGNATURE-----
Merge tag 'extcon-next-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next
Chanwoo writes:
Update extcon for 4.19
Detailed description for this pull request:
1. Release locking when sending the connector state in extcon_sync()
- Previously, extcon used the spinlock before calling the notifier_call_chain
to prevent the scheduled out of task and to prevent the notification delay.
When spinlock is locked for sending the notification, deadlock issue
occured on the side of extcon consumer device. To fix this issue on extcon
consumer device, release locking when sending the connector state.
2. Fix minor issues of extcon provider driver
- extcon-intel-int3496.c uses 'linux/gpio/consumer.h' instead of 'linux/gpio.h'
- extcon-usbc-cors-ec.c adds SPDX license and fix the wrong license information
Instead of checking the return value of platform_get_resource(), we can
use devm_ioremap_resource() which has the NULL pointer check and the
memory region requesting. devm_ioremap_resource is designed to replace
calls to devm_request_mem_region followed by devm_ioremap, so let's use
the same.
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Provides the data bytes snooped over the LPC snoop bus to userspace
as a (blocking) misc character device.
Bytes output from the host using LPC I/O transactions to the snooped port
can be watched or retrieved from the character device using a simple
command like this:
~# od -w1 -A n -t x1 /dev/aspeed-lpc-snoop0
10
de
ad
c0
ff
ee
Signed-off-by: Robert Lippert <rlippert@google.com>
Signed-off-by: Patrick Venture <venture@google.com>
Signed-off-by: Benjamin Fair <benjaminfair@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Comparison between signed and unsigned warnings
and associated type promotion may cause error
condition not be detected.
The type promotion issue in mei bus was addressed by two patches:
commit b40b3e9358 ("mei: bus: type promotion bug in mei_nfc_if_version()")
commit cf1ed2c59b ("mei: bus: type promotion bug in mei_fwver()")
Now it is possible to suppress the warning, by adding proper
casting to move out of radar.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The gnss_allocate_device() function returns a mix of NULL and error
pointers on error. It should only return one or the other. Since the
callers both check for NULL, I've modified it to return NULL on error.
Fixes: 2b6a440351 ("gnss: add GNSS receiver subsystem")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The structure ubx_gserial_ops is local to the source and does not need
to be in global scope, so make it static.
Cleans up sparse warning:
symbol 'ubx_gserial_ops' was not declared. Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplifies the code and is more conventional to what's used in the rest
of the kernel for debugfs ops.
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Reviewed-by: Amit Shah <amit@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Variable i is being assigned but is never used hence it is redundant
and can be removed.
Cleans up clang warning:
warning: variable 'i' set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Martyn Welch <martyn@welchs.me.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- A fix for OMAP5 and DRA7 to make the branch predictor hardening
settings take proper effect on secondary cores
- Disable USB OTG on am3517 since current driver isn't working
- Fix thermal sensor register settings on Armada 38x
- Fix suspend/resume IRQs on pxa3xx
-----BEGIN PGP SIGNATURE-----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=lmky
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
- A fix for OMAP5 and DRA7 to make the branch predictor hardening
settings take proper effect on secondary cores
- Disable USB OTG on am3517 since current driver isn't working
- Fix thermal sensor register settings on Armada 38x
- Fix suspend/resume IRQs on pxa3xx
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: am3517.dtsi: Disable reference to OMAP3 OTG controller
ARM: DRA7/OMAP5: Enable ACTLR[0] (Enable invalidates of BTB) for secondary cores
ARM: pxa: irq: fix handling of ICMR registers in suspend/resume
ARM: dts: armada-38x: use the new thermal binding
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Return an error code on failure. Change leading spaces to tab on the
first if.
Problem found using Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When importing the latest copy of the kernel headers into Bionic,
Christpher and Elliott noticed that the eventpoll.h casts were not
wrapped in (). As it is, clang complains about macros without
surrounding (), so this makes it a pain for userspace tools.
So fix it up by adding another () pair, and make them line up purty by
using tabs.
Fixes: 65aaf87b3a ("add EPOLLNVAL, annotate EPOLL... and event_poll->event")
Reported-by: Christopher Ferris <cferris@google.com>
Reported-by: Elliott Hughes <enh@google.com>
Cc: stable <stable@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
i.MX6SLL is a new SoC of i.MX6 family, enable ocotp
driver support for this SoC.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch add the efuse driver which is embeded in Spreadtrum SC27XX
series PMICs. The sc27xx efuse contains 32 blocks and each block's
data width is 16 bits.
Signed-off-by: Freeman Liu <freeman.liu@spreadtrum.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds the binding documentation for Spreadtrum SC27XX series
PMICs efuse controller device.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
DMA memory regions are required for Accelerated Function Unit (AFU) usage.
These two ioctls allow user space applications to map user memory regions
for dma, and unmap them after use. Iova is returned from driver to user
space application via DFL_FPGA_PORT_DMA_MAP ioctl. Application needs to
unmap it after use, otherwise, driver will unmap them in device file
release operation.
Each AFU has its own rb tree to keep track of its mapped DMA regions.
Ioctl interfaces:
* DFL_FPGA_PORT_DMA_MAP
Do the dma mapping per user_addr and length provided by user.
Return iova in provided struct dfl_fpga_port_dma_map.
* DFL_FPGA_PORT_DMA_UNMAP
Unmap the dma region per iova provided by user.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
User Accelerated Function Unit sub feature exposes the MMIO region of
the AFU. After valid PR bitstream is programmed and the port is enabled,
then this MMIO region could be accessed.
This patch adds support to enumerate the AFU MMIO region and expose it
to userspace via mmap file operation. Below interfaces are exposed to user:
Sysfs interface:
* /sys/class/fpga_region/<regionX>/<dfl-port.x>/afu_id
Read-only. Indicate which PR bitstream is programmed to this AFU.
Ioctl interfaces:
* DFL_FPGA_PORT_GET_INFO
Provide info to userspace on the number of supported region.
Only UAFU region is supported now.
* DFL_FPGA_PORT_GET_REGION_INFO
Provide region information, including access permission, region size,
offset from the start of device fd.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
DFL_FPGA_GET_API_VERSION and DFL_FPGA_CHECK_EXTENSION ioctls are common
ones which need to be supported by all feature devices drivers including
FME and AFU. This patch implements above 2 ioctls in FPGA Accelerated
Function Unit (AFU) driver.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The port header register set is always present for port, it is mainly
for capability, control and status of the ports that AFU connected to.
This patch implements header sub feature support. Below user interfaces
are created by this patch.
Sysfs interface:
* /sys/class/fpga_region/<regionX>/<dfl-port.x>/id
Read-only. Port ID.
Ioctl interface:
* DFL_FPGA_PORT_RESET
Reset the FPGA Port and its AFU.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch registers the port ops into the global list in the DFL
framework, and it allows other modules to use the port ops. And
This patch includes the implementation of the get_id and enable_set
ops too.
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On DFL FPGA devices, the Accelerated Function Unit (AFU), can be
reprogrammed for different functions. It connects to the FPGA
infrastructure (static FPGA region) via a Port. Port CSRs are
implemented separately from the AFU CSRs to provide control and
status of the Port. Once valid PR bitstream is programmed into
the AFU, it allows access to the AFU CSRs in the AFU MMIO space.
This patch only implements basic driver framework for AFU, including
device file operation framework.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds compat_id support, it reuses fme manager's
compat id, as the per region compat id is actually from the
fme manager's register.
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds fpga region platform driver for FPGA Management Engine.
It register an fpga region with given fpga manager / bridge device.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds compat_id support to fme manager driver, it
reads the ID from the hardware register. And it could be used
for compatibility check before partial reconfiguration.
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Partial Reconfiguration (PR) is the most important function for FME. It
allows reconfiguration for given Port/Accelerated Function Unit (AFU).
It creates platform devices for fpga-mgr, fpga-regions and fpga-bridges,
and invokes fpga-region's interface (fpga_region_program_fpga) for PR
operation once PR request received via ioctl. Below user space interface
is exposed by this sub feature.
Ioctl interface:
* DFL_FPGA_FME_PORT_PR
Do partial reconfiguration per information from userspace, including
target port(AFU), buffer size and address info. It returns error code
to userspace if failed. For detailed PR error information, user needs
to read fpga-mgr's status sysfs interface.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Kang Luwei <luwei.kang@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
DFL_FPGA_GET_API_VERSION and DFL_FPGA_CHECK_EXTENSION ioctls are common
ones which need to be supported by all feature devices drivers including
FME and AFU. Userspace application can use these ioctl interfaces to get
the API info and check if specific extension is supported or not in
current driver.
This patch implements above 2 ioctls in FPGA Management Engine (FME)
driver.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Header Register set is always present for FPGA Management Engine (FME),
this patch implements init and uinit function for header sub feature and
introduces several read-only sysfs interfaces for the capability and
status.
Sysfs interfaces:
* /sys/class/fpga_region/<regionX>/<dfl-fme.x>/ports_num
Read-only. Number of ports implemented
* /sys/class/fpga_region/<regionX>/<dfl-fme.x>/bitstream_id
Read-only. Bitstream (static FPGA region) identifier number. It contains
the detailed version and other information of this static FPGA region.
* /sys/class/fpga_region/<regionX>/<dfl-fme.x>/bitstream_metadata
Read-only. Bitstream (static FPGA region) meta data. It contains the
synthesis date, seed and other information of this static FPGA region.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Kang Luwei <luwei.kang@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The FPGA Management Engine (FME) provides power, thermal management,
performance counters, partial reconfiguration and other functions. For each
function, it is packaged into a private feature linked to the FME feature
device in the 'Device Feature List'. It's a platform device created by
DFL framework.
This patch adds the basic framework of FME platform driver. It defines
sub feature drivers to handle the different sub features, including init,
uinit and ioctl. It also registers the file operations for the device file.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Kang Luwei <luwei.kang@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Device Feature List (DFL) is implemented in MMIO and features
are linked via the DFLs. This patch enables pcie driver to prepare
enumeration information (e.g. locations of all device feature lists
in MMIO) and use common APIs provided by the Device Feature List
framework to enumerate each feature device linked.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Zhang Yi <yi.z.zhang@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch implements the basic framework of the driver for FPGA PCIe
device which implements the Device Feature List (DFL) in its MMIO space.
This driver is verified on Intel(R) PCIe-based FPGA DFL devices, including
both integrated (e.g. Intel Server Platform with In-package FPGA) and
discrete (e.g. Intel FPGA PCIe Acceleration Cards) solutions.
Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Zhang Yi <yi.z.zhang@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds one common function in DFL framework. It uses
port_ops get_id callback to get port id and compare it with given
value. This function could be used as match function of the
dfl_fpga_cdev_find_port function.
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
