fpga: dfl: parse interrupt info for feature devices on enumeration

DFL based FPGA devices could support interrupts for different purposes,
but current DFL framework only supports feature device enum

fpga: dfl: parse interrupt info for feature devices on enumeration

DFL based FPGA devices could support interrupts for different purposes,
but current DFL framework only supports feature device enumeration with
given MMIO resources information via common DFL headers. This patch
introduces one new API dfl_fpga_enum_info_add_irq for low level bus
drivers (e.g. PCIe device driver) to pass its interrupt resources
information to DFL framework for enumeration, and also adds interrupt
enumeration code in framework to parse and assign interrupt resources
for enumerated feature devices and their own sub features.

With this patch, DFL framework enumerates interrupt resources for core
features, including PORT Error Reporting, FME (FPGA Management Engine)
Error Reporting and also AFU User Interrupts.

Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>

show more ...

Merge drm/drm-next into drm-intel-next-queued

Catch up with upstream, in particular to get c1e8d7c6a7a6 ("mmap locking
API: convert mmap_sem comments").

Signed-off-by: Jani Nikula <jani.nikula@inte

Merge drm/drm-next into drm-intel-next-queued

Catch up with upstream, in particular to get c1e8d7c6a7a6 ("mmap locking
API: convert mmap_sem comments").

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

show more ...

fpga: dfl: Use struct_size() in kzalloc()

Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes. Also, remove unnecessary
function dfl_f

fpga: dfl: Use struct_size() in kzalloc()

Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes. Also, remove unnecessary
function dfl_feature_platform_data_size().

This code was detected with the help of Coccinelle and, audited and
fixed manually.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>

show more ...

Merge tag 'v5.8-rc1' into regulator-5.8

Linux 5.8-rc1

Merge tag 'v5.8-rc1' into fixes

Linux 5.8-rc1

Merge v5.8-rc1 into drm-misc-fixes

Beginning a new release cycles for what will become v5.8. Updating
drm-misc-fixes accordingly.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge branch 'dt/schema-cleanups' into dt/linus

Merge branch 'x86/entry' into ras/core

to fixup conflicts in arch/x86/kernel/cpu/mce/core.c so MCE specific follow
up patches can be applied without creating a horrible merge conflict
afterwards.

Merge tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc driver patches for 5.

Merge tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc driver patches for 5.8-rc1

Included in here are:

- habanalabs driver updates, loads

- mhi bus driver updates

- extcon driver updates

- clk driver updates (approved by the clock maintainer)

- firmware driver updates

- fpga driver updates

- gnss driver updates

- coresight driver updates

- interconnect driver updates

- parport driver updates (it's still alive!)

- nvmem driver updates

- soundwire driver updates

- visorbus driver updates

- w1 driver updates

- various misc driver updates

In short, loads of different driver subsystem updates along with the
drivers as well.

All have been in linux-next for a while with no reported issues"

* tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (233 commits)
habanalabs: correctly cast u64 to void*
habanalabs: initialize variable to default value
extcon: arizona: Fix runtime PM imbalance on error
extcon: max14577: Add proper dt-compatible strings
extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()'
extcon: remove redundant assignment to variable idx
w1: omap-hdq: print dev_err if irq flags are not cleared
w1: omap-hdq: fix interrupt handling which did show spurious timeouts
w1: omap-hdq: fix return value to be -1 if there is a timeout
w1: omap-hdq: cleanup to add missing newline for some dev_dbg
/dev/mem: Revoke mappings when a driver claims the region
misc: xilinx-sdfec: convert get_user_pages() --> pin_user_pages()
misc: xilinx-sdfec: cleanup return value in xsdfec_table_write()
misc: xilinx-sdfec: improve get_user_pages_fast() error handling
nvmem: qfprom: remove incorrect write support
habanalabs: handle MMU cache invalidation timeout
habanalabs: don't allow hard reset with open processes
habanalabs: GAUDI does not support soft-reset
habanalabs: add print for soft reset due to event
habanalabs: improve MMU cache invalidation code
...

show more ...

Merge tag 'fpga-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next

Moritz writes:

FPGA Manager changes for 5.8

Here's the first set of changes for the 5.8

Merge tag 'fpga-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next

Moritz writes:

FPGA Manager changes for 5.8

Here's the first set of changes for the 5.8-rc1 merge window.

Dominic's change adds support for accessing AFU regions with gdb.
Gustavo's change is a cleanup patch regarding variable lenght arrays.
Richard's changes update dt-bindings and add support for stratix and agilex.
Sergiu's changes update spi transfers with the new delay field.
Xu's change addresses an issue with a wrong return value.
Shubhrajyoti's change makes the Zynq FPGA driver return -EPROBE_DEFER on
check of devm_clk_get failure.
Xu's change for DFL enables multiple opens.

All of these patches have been reviewed, have appropriate Acked-by's and
have been in the last few linux-next releases without issues.

Signed-off-by: Moritz Fischer <mdf@kernel.org>

* tag 'fpga-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
fpga: dfl: afu: support debug access to memory-mapped afu regions
fpga: dfl.h: Replace zero-length array with flexible-array member
arm64: dts: agilex: correct service layer driver's compatible value
dt-bindings, firmware: add compatible value Intel Stratix10 service layer binding
fpga: stratix10-soc: add compatible property value for intel agilex
arm64: dts: agilex: correct FPGA manager driver's compatible value
dt-bindings: fpga: add compatible value to Stratix10 SoC FPGA manager binding
fpga: machxo2-spi: Use new structure for SPI transfer delays
fpga: ice40-spi: Use new structure for SPI transfer delays
fpga: dfl: support multiple opens on feature device node.

show more ...

fpga: dfl: support multiple opens on feature device node.

Each DFL functional block, e.g. AFU (Accelerated Function Unit) and FME
(FPGA Management Engine), could implement more than one function wit

fpga: dfl: support multiple opens on feature device node.

Each DFL functional block, e.g. AFU (Accelerated Function Unit) and FME
(FPGA Management Engine), could implement more than one function within
its region, but current driver only allows one user application to access
it by exclusive open on device node. So this is not convenient and
flexible for userspace applications, as they have to combine lots of
different functions into one single application.

This patch removes the limitation here to allow multiple opens to each
feature device node for AFU and FME from userspace applications. If user
still needs exclusive access to these device node, O_EXCL flag must be
issued together with open.

Signed-off-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 5.5 merge window.

Merge tag 'v5.4-rc8' into WIP.x86/mm, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge branch 'linus' into x86/hyperv

Pick up upstream fixes to avoid conflicts.

Merge tag 'v5.4-rc5' into next

Sync up with mainline.

Merge tag 'v5.4-rc3' into spi-5.4

Linux 5.4-rc3

Merge drm/drm-next into drm-intel-next-queued

Backmerging to pull in HDR DP code:

https://lists.freedesktop.org/archives/dri-devel/2019-September/236453.html

Signed-off-by: Joonas Lahtinen <joonas

Merge drm/drm-next into drm-intel-next-queued

Backmerging to pull in HDR DP code:

https://lists.freedesktop.org/archives/dri-devel/2019-September/236453.html

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

show more ...

Merge tag 'fix-missing-panels' into fixes

Merge drm/drm-next into drm-misc-next

We haven't done any backmerge for a while due to the merge window, and it
starts to become an issue for komeda. Let's bring 5.4-rc1 in.

Signed-off-by: Maxime R

Merge drm/drm-next into drm-misc-next

We haven't done any backmerge for a while due to the merge window, and it
starts to become an issue for komeda. Let's bring 5.4-rc1 in.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

show more ...

Merge drm/drm-fixes into drm-misc-fixes

We haven't backmerged for a while, let's start the -rc period by pulling
rc1.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
"Here is the big char/misc driver pull request for 5.4-rc

Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
"Here is the big char/misc driver pull request for 5.4-rc1.

As has been happening in previous releases, more and more individual
driver subsystem trees are ending up in here. Now if that is good or
bad I can't tell, but hopefully it makes your life easier as it's more
of an aggregation of trees together to one merge point for you.

Anyway, lots of stuff in here:
- habanalabs driver updates
- thunderbolt driver updates
- misc driver updates
- coresight and intel_th hwtracing driver updates
- fpga driver updates
- extcon driver updates
- some dma driver updates
- char driver updates
- android binder driver updates
- nvmem driver updates
- phy driver updates
- parport driver fixes
- pcmcia driver fix
- uio driver updates
- w1 driver updates
- configfs fixes
- other assorted driver updates

All of these have been in linux-next for a long time with no reported
issues"

* tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits)
misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation
habanalabs: correctly cast variable to __le32
habanalabs: show correct id in error print
habanalabs: stop using the acronym KMD
habanalabs: display card name as sensors header
habanalabs: add uapi to retrieve aggregate H/W events
habanalabs: add uapi to retrieve device utilization
habanalabs: Make the Coresight timestamp perpetual
habanalabs: explicitly set the queue-id enumerated numbers
habanalabs: print to kernel log when reset is finished
habanalabs: replace __le32_to_cpu with le32_to_cpu
habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64
habanalabs: Handle HW_IP_INFO if device disabled or in reset
habanalabs: Expose devices after initialization is done
habanalabs: improve security in Debug IOCTL
habanalabs: use default structure for user input in Debug IOCTL
habanalabs: Add descriptive name to PSOC app status register
habanalabs: Add descriptive names to PSOC scratch-pad registers
habanalabs: create two char devices per ASIC
habanalabs: change device_setup_cdev() to be more generic
...

show more ...

Merge tag 'fpga-dfl-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next

Moritz writes:

FPGA DFL Changes for 5.4

This pull-request contains the FPGA DFL cha

Merge tag 'fpga-dfl-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next

Moritz writes:

FPGA DFL Changes for 5.4

This pull-request contains the FPGA DFL changes for 5.4

- The first three patches are cleanup patches making use of dev_groups and
making the init callback optional.
- One patch adds userclock sysfs entries that are DFL specific
- One patch exposes AFU port disable/enable functions
- One patch adds error reporting
- One patch adds AFU SignalTap support
- One patch adds FME global error reporting
- The final patch is a documentation patch that decribes the
virtualization interfaces

This patchset requires the 'dev_groups_all_drivers' tag from drivers
core for the dev_groups refactoring as well as the DFL changes already
in char-misc-next.

Signed-off-by: Moritz Fischer <mdf@kernel.org>

* tag 'fpga-dfl-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
Documentation: fpga: dfl: add descriptions for virtualization and new interfaces.
fpga: dfl: fme: add global error reporting support
fpga: dfl: afu: add STP (SignalTap) support
fpga: dfl: afu: add error reporting support.
fpga: dfl: afu: expose __afu_port_enable/disable function.
fpga: dfl: afu: add userclock sysfs interfaces.
fpga: dfl: afu: convert platform_driver to use dev_groups
fpga: dfl: fme: convert platform_driver to use dev_groups
fpga: dfl: make init callback optional
driver core: add dev_groups to all drivers

show more ...

fpga: dfl: make init callback optional

This patch makes init callback of sub features optional. With
this change, people don't need to prepare any empty init callback.

Signed-off-by: Wu Hao <hao.wu

fpga: dfl: make init callback optional

This patch makes init callback of sub features optional. With
this change, people don't need to prepare any empty init callback.

Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>

show more ...

Merge branch 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into fpga-dfl-for-5.4

Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-next

This merges in fixes for the XIVE interrupt controller which touch both
generic powerpc and PPC KVM code. To avoid mer

Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-next

This merges in fixes for the XIVE interrupt controller which touch both
generic powerpc and PPC KVM code. To avoid merge conflicts, these
commits will go upstream via the powerpc tree as well as the KVM tree.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

show more ...