Commit graph

654 commits

Author SHA1 Message Date
Linus Torvalds
e1b061b444 Landlock updates for v6.12-rc1
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Merge tag 'landlock-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
 "We can now scope a Landlock domain thanks to a new "scoped" field that
  can deny interactions with resources outside of this domain.

  The LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET flag denies connections to an
  abstract UNIX socket created outside of the current scoped domain, and
  the LANDLOCK_SCOPE_SIGNAL flag denies sending a signal to processes
  outside of the current scoped domain.

  These restrictions also apply to nested domains according to their
  scope. The related changes will also be useful to support other kind
  of IPC isolations"

* tag 'landlock-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  landlock: Document LANDLOCK_SCOPE_SIGNAL
  samples/landlock: Add support for signal scoping
  selftests/landlock: Test signal created by out-of-bound message
  selftests/landlock: Test signal scoping for threads
  selftests/landlock: Test signal scoping
  landlock: Add signal scoping
  landlock: Document LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET
  samples/landlock: Add support for abstract UNIX socket scoping
  selftests/landlock: Test inherited restriction of abstract UNIX socket
  selftests/landlock: Test connected and unconnected datagram UNIX socket
  selftests/landlock: Test UNIX sockets with any address formats
  selftests/landlock: Test abstract UNIX socket scoping
  selftests/landlock: Test handling of unknown scope
  landlock: Add abstract UNIX socket scoping
2024-09-24 10:40:11 -07:00
Linus Torvalds
abf2050f51 media updates for v6.12-rc1
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Merge tag 'media/v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - New CEC driver: Extron DA HD 4K Plus

 - Lots of driver fixes, cleanups and improvements

* tag 'media/v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (179 commits)
  media: atomisp: Use clamp() in ia_css_eed1_8_vmem_encode()
  media: atomisp: Fix eed1_8 code assigning signed values to an unsigned variable
  media: atomisp: set lock before calling vb2_queue_init()
  media: atomisp: Improve binary finding debug logging
  media: atomisp: Drop dev_dbg() calls from hmm_[alloc|free]()
  media: atomisp: csi2-bridge: Add DMI quirk for t4ka3 on Xiaomi Mipad2
  media: atomisp: add missing wait_prepare/finish ops
  media: atomisp: Remove unused declaration
  media: atomisp: use clamp() in compute_coring()
  media: atomisp: use clamp() in ia_css_eed1_8_encode()
  media: atomisp: Simplify ia_css_pipe_create_cas_scaler_desc_single_output()
  media: atomisp: Replace rarely used macro from math_support.h
  media: atomisp: Remove duplicated leftover, i.e. sh_css_dvs_info.h
  media: atomisp: bnr: fix trailing statement
  media: atomisp: move trailing */ to separate lines
  media: atomisp: move trailing statement to next line.
  media: atomisp: Fix trailing statement in ia_css_de.host.c
  media: atomisp: Fix spelling mistakes in atomisp.h
  media: atomisp: Fix spelling mistakes in atomisp_platform.h
  media: atomisp: Fix spelling mistake in csi_rx_public.h
  ...
2024-09-23 15:27:58 -07:00
Tahera Fahimi
1ca980815e
landlock: Document LANDLOCK_SCOPE_SIGNAL
Extend documentation for Landlock ABI version 6 with signal scoping.

Signed-off-by: Tahera Fahimi <fahimitahera@gmail.com>
Link: https://lore.kernel.org/r/dae0dbe1a78be2ce5506b90fc4ffd12c82fa1061.1725657728.git.fahimitahera@gmail.com
[mic: Improve documentation]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-09-16 23:50:55 +02:00
Tahera Fahimi
dba40c7700
landlock: Document LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET
Introduce LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET as an IPC scoping
mechanism available since Landlock ABI version 6. Update ruleset_attr,
Landlock ABI version, and access rights code blocks based on that.

Signed-off-by: Tahera Fahimi <fahimitahera@gmail.com>
Link: https://lore.kernel.org/r/ac75151861724c19ed62b500cfe497612d9a6607.1725494372.git.fahimitahera@gmail.com
[mic: Improve commit message and documentation, add a missing
fallthrough, reformat to 80 columns, improve some wording]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-09-16 23:50:52 +02:00
Jonathan Corbet
d224338aa1 Linux 6.11-rc6
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Merge tag 'v6.11-rc6' into docs-mw

This is done primarily to get a docs build fix merged via another tree so
that "make htmldocs" stops failing.
2024-09-05 14:01:38 -06:00
Erling Ljunggren
d2f2ce0069 media: docs: Add V4L2_CAP_EDID
Add documentation for the new edid capability.

Signed-off-by: Erling Ljunggren <hljunggr@cisco.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-09-05 20:11:28 +02:00
Fritz Koenig
142887ebef Documentation: media: Fix AV1 struct documentation
- v4l2_av1_segmentation table formatting
- incorrect member name uv_sec_strength
- incorrect struct name v4l2_av1_global_motion
- incorrect link label for v4l2_av1_loop_filter
- add max_frame_height_minus_1
- struct ordering

Signed-off-by: Fritz Koenig <frkoenig@chromium.org>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-28 10:01:10 +02:00
Ming Lei
a4931bb8b0 Documentation: add ublk driver ioctl numbers
ublk driver takes the following ioctl numbers:

	'u'   00-2F  linux/ublk_cmd.h

So document it in ioctl-number.rst

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240823134339.1496916-1-ming.lei@redhat.com
2024-08-26 15:34:14 -06:00
Hans Verkuil
a043ea54bb Extensible parameters support for the rkisp1 driver
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Merge tag 'next-media-rkisp1-20240814' of git://git.kernel.org/pub/scm/linux/kernel/git/pinchartl/linux.git

Extensible parameters support for the rkisp1 driver.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-14 17:18:47 +02:00
Nicolas Dufresne
c60f77387b docs: uapi: media: Document Mediatek 10bit tiled formats
Document V4L2_PIX_FMT_MT2110T and V4L2_PIX_FMT_MT2110R. These two
formats are nearly identical, reusing MM21 format and expending it
by inserting chunk of 16 bytes of lower 2 bit pixel data after each
chunk of 64 bytes higher 8 bit of data.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-14 10:05:32 +02:00
Nicolas Dufresne
8b4e0f96ea docs: uapi: media: Add a layout diagram for MT2110T
This diagram details the partitioning done in each tiles.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-14 10:05:32 +02:00
Nicolas Dufresne
f871cc5b7e docs: uapi: media: Move NV12_10BE_8L128 to NV15 section
This is a 15 bits per pixel (or packed 10 bit format), so move it
into the relevant section.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-14 10:05:31 +02:00
Nicolas Dufresne
bec81249af docs: uapi: media: Properly locate NV12MT diagram
The diagram have been pushed back at the end of a list of unrelated
pixels formats. Move it back next its related pixel format.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-14 10:05:31 +02:00
Jacopo Mondi
1fc379f624 media: uapi: videodev2: Add V4L2_META_FMT_RK_ISP1_EXT_PARAMS
The rkisp1 driver stores ISP configuration parameters in the fixed
rkisp1_params_cfg structure. As the members of the structure are part of
the userspace API, the structure layout is immutable and cannot be
extended further. Introducing new parameters or modifying the existing
ones would change the buffer layout and cause breakages in existing
applications.

The allow for future extensions to the ISP parameters, introduce a new
extensible parameters format, with a new format 4CC. Document usage of
the new format in the rkisp1 admin guide.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-08-12 13:36:32 +03:00
Javier Carrasco
6f93a2abec media: docs: Fix newline typos in capture.c
Commit d7894721f7 ("media: docs: Fix newline typo") aimed to fix the
newline typos in capture.c, but some of the typos were not fixed. Fix
the remaining newline typos.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-09 07:56:38 +02:00
Hans Verkuil
670cb8f8a7 Documentation: media: move Memory Consistency Flags
The documentation of the Memory Consistency Flags was part of the struct
v4l2_buffer documentation, but that struct doesn't use those flags. Instead
it is used by VIDIOC_CREATE_BUFS and VIDIOC_REQBUFS. Move the documentation
from buffer.rst to vidioc-reqbufs.rst which is where it belongs.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-09 07:56:38 +02:00
Hans Verkuil
911d561816 Documentation: media: add missing V4L2_BUF_CAP_ flags
The documentation for V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS and
V4L2_BUF_CAP_SUPPORTS_REMOVE_BUFS was missing. Add this.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
2024-08-09 07:56:38 +02:00
Fritz Koenig
34acbac089 Documentation: media: Fix v4l2_av1_segmentation table formatting
Fix incorrect formatting.

Signed-off-by: Fritz Koenig <frkoenig@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: added missing commit message]
2024-08-09 07:56:37 +02:00
Sakari Ailus
677126b274 media: Documentation: Fix spelling of "blanking"
"Blanking" should be spelled as such, not "balanking". Fix it.

Reported-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-08-09 07:56:37 +02:00
Hans Verkuil
613f21505b media: cec: core: add new CEC_MSG_FL_REPLY_VENDOR_ID flag
If this flag is set, then the reply is expected to consist of
the CEC_MSG_VENDOR_COMMAND_WITH_ID opcode followed by the Vendor ID (as
used in bytes 1-4 of the message), followed by the struct cec_msg reply
field.

Note that this assumes that the byte after the Vendor ID is a
vendor-specific opcode.

This flag makes it easier to wait for replies to vendor commands,
using the same CEC framework support for waiting for regular replies.

Support for this flag is indicated by setting the new
CEC_CAP_REPLY_VENDOR_ID capability.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-08-05 09:38:46 +02:00
Jean-Michel Hautbois
914f896187 media: v4l: Fix missing tabular column hint for Y14P format
The original patch added two columns in the flat-table of Luma-Only
Image Formats, without updating hints to latex: above it.  This results
in wrong column count in the output of Sphinx's latex builder.

Fix it.

Reported-by: Akira Yokosawa <akiyks@gmail.com>
Closes: https://lore.kernel.org/linux-media/bdbc27ba-5098-49fb-aabf-753c81361cc7@gmail.com/
Fixes: adb1d4655e ("media: v4l: Add V4L2-PIX-FMT-Y14P format")
Cc: stable@vger.kernel.org # for v6.10
Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@yoseli.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-07-30 08:36:29 +02:00
Alyssa Ross
0a8e4dc1d3 Documentation: ioctl: document 0x07 ioctl code
It looks like this was supposed to be documented when VSOCK was
added[1], but it got lost in later submissions.

Link: https://lore.kernel.org/20130109000024.3719.71468.stgit@promb-2n-dhcp175.eng.vmware.com/#Z31Documentation:ioctl:ioctl-number.txt [1]
Fixes: d021c34405 ("VSOCK: Introduce VM Sockets")
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240725171120.12226-2-hi@alyssa.is
2024-07-29 15:25:03 -06:00
Linus Torvalds
9fa23750c6 Landlock updates for v6.11-rc1
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Merge tag 'landlock-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
 "This simplifies code and improves documentation"

* tag 'landlock-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  landlock: Various documentation improvements
  landlock: Clarify documentation for struct landlock_ruleset_attr
  landlock: Use bit-fields for storing handled layer access masks
2024-07-20 11:41:52 -07:00
Linus Torvalds
acc5965b9f Char/Misc and other driver changes for 6.11-rc1
Here is the "big" set of char/misc and other driver subsystem changes
 for 6.11-rc1.  Nothing major in here, just loads of new drivers and
 updates.  Included in here are:
   - IIO api updates and new drivers added
   - wait_interruptable_timeout() api cleanups for some drivers
   - MODULE_DESCRIPTION() additions for loads of drivers
   - parport out-of-bounds fix
   - interconnect driver updates and additions
   - mhi driver updates and additions
   - w1 driver fixes
   - binder speedups and fixes
   - eeprom driver updates
   - coresight driver updates
   - counter driver update
   - new misc driver additions
   - other minor api updates
 
 All of these, EXCEPT for the final Kconfig build fix for 32bit systems,
 have been in linux-next for a while with no reported issues.  The
 Kconfig fixup went in 29 hours ago, so might have missed the latest
 linux-next, but was acked by everyone involved.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc and other driver updates from Greg KH:
 "Here is the "big" set of char/misc and other driver subsystem changes
  for 6.11-rc1. Nothing major in here, just loads of new drivers and
  updates. Included in here are:

   - IIO api updates and new drivers added

   - wait_interruptable_timeout() api cleanups for some drivers

   - MODULE_DESCRIPTION() additions for loads of drivers

   - parport out-of-bounds fix

   - interconnect driver updates and additions

   - mhi driver updates and additions

   - w1 driver fixes

   - binder speedups and fixes

   - eeprom driver updates

   - coresight driver updates

   - counter driver update

   - new misc driver additions

   - other minor api updates

  All of these, EXCEPT for the final Kconfig build fix for 32bit
  systems, have been in linux-next for a while with no reported issues.
  The Kconfig fixup went in 29 hours ago, so might have missed the
  latest linux-next, but was acked by everyone involved"

* tag 'char-misc-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (330 commits)
  misc: Kconfig: exclude mrvl-cn10k-dpi compilation for 32-bit systems
  misc: delete Makefile.rej
  binder: fix hang of unregistered readers
  misc: Kconfig: add a new dependency for MARVELL_CN10K_DPI
  virtio: add missing MODULE_DESCRIPTION() macro
  agp: uninorth: add missing MODULE_DESCRIPTION() macro
  spmi: add missing MODULE_DESCRIPTION() macros
  dev/parport: fix the array out-of-bounds risk
  samples: configfs: add missing MODULE_DESCRIPTION() macro
  misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver
  misc: keba: Fix missing AUXILIARY_BUS dependency
  slimbus: Fix struct and documentation alignment in stream.c
  MAINTAINERS: CC dri-devel list on Qualcomm FastRPC patches
  misc: fastrpc: use coherent pool for untranslated Compute Banks
  misc: fastrpc: support complete DMA pool access to the DSP
  misc: fastrpc: add missing MODULE_DESCRIPTION() macro
  misc: fastrpc: Add missing dev_err newlines
  misc: fastrpc: Use memdup_user()
  nvmem: core: Implement force_ro sysfs attribute
  nvmem: Use sysfs_emit() for type attribute
  ...
2024-07-19 15:55:08 -07:00
Linus Torvalds
ebcfbf02ab IOMMU Updates for Linux v6.11
- Core:
   * Support for the "ats-supported" device-tree property.
 
   * Removal of the 'ops' field from 'struct iommu_fwspec'.
 
   * Introduction of iommu_paging_domain_alloc() and partial conversion
     of existing users.
 
   * Introduce 'struct iommu_attach_handle' and provide corresponding
     IOMMU interfaces which will be used by the IOMMUFD subsystem.
 
   * Remove stale documentation.
 
   * Add missing MODULE_DESCRIPTION() macro.
 
   * Misc cleanups.
 
 - Allwinner Sun50i:
   * Ensure bypass mode is disabled on H616 SoCs.
 
   * Ensure page-tables are allocated below 4GiB for the 32-bit
     page-table walker.
 
   * Add new device-tree compatible strings.
 
 - AMD Vi:
   * Use try_cmpxchg64() instead of cmpxchg64() when updating pte.
 
 - Arm SMMUv2:
   * Print much more useful information on context faults.
 
   * Fix Qualcomm TBU probing when CONFIG_ARM_SMMU_QCOM_DEBUG=n.
 
   * Add new Qualcomm device-tree bindings.
 
 - Arm SMMUv3:
   * Support for hardware update of access/dirty bits and reporting via
     IOMMUFD.
 
   * More driver rework from Jason, this time updating the PASID/SVA support
     to prepare for full IOMMUFD support.
 
   * Add missing MODULE_DESCRIPTION() macro.
 
   * Minor fixes and cleanups.
 
 - NVIDIA Tegra:
 
   * Fix for benign fwspec initialisation issue exposed by rework on the
     core branch.
 
 - Intel VT-d:
 
   * Use try_cmpxchg64() instead of cmpxchg64() when updating pte.
 
   * Use READ_ONCE() to read volatile descriptor status.
 
   * Remove support for handling Execute-Requested requests.
 
   * Avoid calling iommu_domain_alloc().
 
   * Minor fixes and refactoring.
 
 - Qualcomm MSM:
 
   * Updates to the device-tree bindings.
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Merge tag 'iommu-updates-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu updates from Will Deacon:
 "Core:

   - Support for the "ats-supported" device-tree property

   - Removal of the 'ops' field from 'struct iommu_fwspec'

   - Introduction of iommu_paging_domain_alloc() and partial conversion
     of existing users

   - Introduce 'struct iommu_attach_handle' and provide corresponding
     IOMMU interfaces which will be used by the IOMMUFD subsystem

   - Remove stale documentation

   - Add missing MODULE_DESCRIPTION() macro

   - Misc cleanups

  Allwinner Sun50i:

   - Ensure bypass mode is disabled on H616 SoCs

   - Ensure page-tables are allocated below 4GiB for the 32-bit
     page-table walker

   - Add new device-tree compatible strings

  AMD Vi:

   - Use try_cmpxchg64() instead of cmpxchg64() when updating pte

  Arm SMMUv2:

   - Print much more useful information on context faults

   - Fix Qualcomm TBU probing when CONFIG_ARM_SMMU_QCOM_DEBUG=n

   - Add new Qualcomm device-tree bindings

  Arm SMMUv3:

   - Support for hardware update of access/dirty bits and reporting via
     IOMMUFD

   - More driver rework from Jason, this time updating the PASID/SVA
     support to prepare for full IOMMUFD support

   - Add missing MODULE_DESCRIPTION() macro

   - Minor fixes and cleanups

  NVIDIA Tegra:

   - Fix for benign fwspec initialisation issue exposed by rework on the
     core branch

  Intel VT-d:

   - Use try_cmpxchg64() instead of cmpxchg64() when updating pte

   - Use READ_ONCE() to read volatile descriptor status

   - Remove support for handling Execute-Requested requests

   - Avoid calling iommu_domain_alloc()

   - Minor fixes and refactoring

  Qualcomm MSM:

   - Updates to the device-tree bindings"

* tag 'iommu-updates-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (72 commits)
  iommu/tegra-smmu: Pass correct fwnode to iommu_fwspec_init()
  iommu/vt-d: Fix identity map bounds in si_domain_init()
  iommu: Move IOMMU_DIRTY_NO_CLEAR define
  dt-bindings: iommu: Convert msm,iommu-v0 to yaml
  iommu/vt-d: Fix aligned pages in calculate_psi_aligned_address()
  iommu/vt-d: Limit max address mask to MAX_AGAW_PFN_WIDTH
  docs: iommu: Remove outdated Documentation/userspace-api/iommu.rst
  arm64: dts: fvp: Enable PCIe ATS for Base RevC FVP
  iommu/of: Support ats-supported device-tree property
  dt-bindings: PCI: generic: Add ats-supported property
  iommu: Remove iommu_fwspec ops
  OF: Simplify of_iommu_configure()
  ACPI: Retire acpi_iommu_fwspec_ops()
  iommu: Resolve fwspec ops automatically
  iommu/mediatek-v1: Clean up redundant fwspec checks
  RDMA/usnic: Use iommu_paging_domain_alloc()
  wifi: ath11k: Use iommu_paging_domain_alloc()
  wifi: ath10k: Use iommu_paging_domain_alloc()
  drm/msm: Use iommu_paging_domain_alloc()
  vhost-vdpa: Use iommu_paging_domain_alloc()
  ...
2024-07-19 09:59:58 -07:00
Linus Torvalds
cf05e93af4 Nothing hugely exciting happening in the documentation tree this time
around, mostly more of the usual:
 
 - More Spanish, Italian, and Chinese translations
 
 - A new script, scripts/checktransupdate.py, can be used to see which
   commits have touched an (English) document since a given translation was
   last updated.
 
 - A couple of "best practices" suggestions (on Link: tags and off-list
   discussions) that were not entirely at consensus level, but I concluded
   they were close enough to accept.
 
 - Some nice cleanups removing documentation for kernel parameters that have
   not been recognized for ... a long time.
 
 ...along with the usual updates, typo fixes, and such.
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Merge tag 'docs-6.11' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "Nothing hugely exciting happening in the documentation tree this time
  around, mostly more of the usual:

   - More Spanish, Italian, and Chinese translations

   - A new script, scripts/checktransupdate.py, can be used to see which
     commits have touched an (English) document since a given
     translation was last updated.

   - A couple of "best practices" suggestions (on Link: tags and
     off-list discussions) that were not entirely at consensus level,
     but I concluded they were close enough to accept.

   - Some nice cleanups removing documentation for kernel parameters
     that have not been recognized for ... a long time.

  ...along with the usual updates, typo fixes, and such"

* tag 'docs-6.11' of git://git.lwn.net/linux: (57 commits)
  Documentation: Document user_events ioctl code
  docs/pinctrl: fix typo in mapping example
  docs: maintainer: discourage taking conversations off-list
  docs: driver-model: platform: update the definition of platform_driver
  docs/sp_SP: Add translation for scheduler/sched-design-CFS.rst
  writing_musb_glue_layer.rst: Fix broken URL
  zh_CN/admin-guide: one typo fix
  docs/zh_CN/virt: Update the translation of guest-halt-polling.rst
  Documentation: add reference from dynamic debug to loglevel kernel params
  Documentation: best practices for using Link trailers
  Documentation: fix links to mailing list services
  Documentation: exception-tables.rst: Fix the wrong steps referenced
  docs/zh_CN: add process/researcher-guidelines Chinese translation
  Documentation/tools/rv: fix document header
  docs/sp_SP: Add translation of process/maintainer-kvm-x86.rst
  docs/admin-guide/mm: correct typo 'quired' to 'queried'
  Add libps2 to the input section of driver-api
  Docs/mm/index: move allocation profiling document to unsorted documents chapter
  Docs/mm/index: rename 'Legacy Documentation' to 'Unsorted Documentation'
  Docs/mm/index: Remove 'Memory Management Guide' chapter marker
  ...
2024-07-18 15:54:16 -07:00
Günther Noack
f4b89d8ce5
landlock: Various documentation improvements
* Fix some typos, incomplete or confusing phrases.
* Split paragraphs where appropriate.
* List the same error code multiple times,
  if it has multiple possible causes.
* Bring wording closer to the man page wording,
  which has undergone more thorough review
  (esp. for LANDLOCK_ACCESS_FS_WRITE_FILE).
* Small semantic clarifications
  * Call the ephemeral port range "ephemeral"
  * Clarify reasons for EFAULT in landlock_add_rule()
  * Clarify @rule_type doc for landlock_add_rule()

This is a collection of small fixes which I collected when preparing the
corresponding man pages [1].

Cc: Alejandro Colomar <alx@kernel.org>
Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Link: https://lore.kernel.org/r/20240715155554.2791018-1-gnoack@google.com [1]
Signed-off-by: Günther Noack <gnoack@google.com>
Link: https://lore.kernel.org/r/20240715160328.2792835-2-gnoack@google.com
[mic: Add label to link, fix formatting spotted by make htmldocs,
synchronize userspace-api documentation's date]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-07-18 08:27:47 +02:00
Linus Torvalds
b1bc554e00 media updates for v6.11-rc1
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Merge tag 'media/v6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - New sensor drivers: gc05a2, gc08a3 and imx283

 - New serializer/deserializer drivers: max96714 and max96717

 - New JPEG encoder driver: e5010

 - Support for Raspberry Pi PiSP Backend (BE) ISP driver

 - Old documentation for av7110 driver removed, as a new version was
   added as Documentation/userspace-api/media/dvb/legacy*.rst

 - atompisp: Linux firmwares are now available, so drop firmware-related
   task from TODO and update firmware logic

 - The imx258 driver has gained several improvements

 - wave5 driver has gained support for HEVC decoding

 - em28xx gained support for MyGica UTV3

 - av7110 budget-patch driver removed

 - Lots of other cleanups, improvements and fixes

* tag 'media/v6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (301 commits)
  media: raspberrypi: Switch to remove_new
  media: uapi: pisp_be_config: Add extra config fields
  media: uapi: pisp_be_config: Re-sort pisp_be_tiles_config
  media: uapi: pisp_common: Capitalize all macros
  media: uapi: pisp_common: Add 32 bpp format test
  media: uapi: pisp_be_config: Drop BIT() from uAPI
  media: stm32: dcmipp: correct error handling in dcmipp_create_subdevs
  media: atomisp: Fix spelling mistakes in sh_css_sp.c
  media: atomisp: Fix spelling mistake in ia_css_debug.c
  media: atomisp: Fix spelling mistake in hmm_bo.c
  media: atomisp: Fix spelling mistake in ia_css_eed1_8.host.c
  media: atomisp: Fix spelling mistake in sh_css_internal.h
  media: atomisp: Fix spelling mistake "pipline" -> "pipeline"
  media: atomisp: Remove unused GPIO related defines and APIs
  media: atomisp: Replace COMPILATION_ERROR_IF() by static_assert()
  media: atomisp: Clean up unused macros from math_support.h
  media: atomisp: csi2-bridge: Add DMI quirk for OV5693 on Xiaomi Mipad2
  media: atomisp: Update TODO
  media: atomisp: Prefix firmware paths with "intel/ipu/"
  media: atomisp: Remove firmware_name module parameter
  ...
2024-07-17 18:30:10 -07:00
Beau Belgrave
702418f755 Documentation: Document user_events ioctl code
The user events trace subsystem uses the 0x2A/'*' code for ioctls. These
are published via the uapi/linux/user_events.h header file.

Add a line indicating user events as the owner of the 0x2A/'*' code and
reserve the first 32 sequence numbers.

Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240715181413.1157-1-beaub@linux.microsoft.com
2024-07-16 11:15:02 -06:00
Linus Torvalds
b3c0eccb48 gpio updates for v6.11-rc1
GPIOLIB core:
 - rework kfifo handling rework in the character device code
 - improve the labeling of GPIOs requested as interrupts and show more info
   on interrupt-only GPIOs in debugfs
 - remove unused APIs
 - unexport interfaces that are only used from the core GPIO code
 - drop the return value from gpiochip_set_desc_names() as it cannot fail
 - move a string array definition out of a header and into a specific
   compilation unit
 - convert the last user of gpiochip_get_desc() other than GPIO core to using
   a safer alternative
 - use array_index_nospec() where applicable
 
 New drivers:
 - add a "virtual GPIO consumer" module that allows requesting GPIOs from actual
   hardware and driving tests of the in-kernel GPIO API from user-space over
   debugfs
 - add a GPIO-based "sloppy" logic analyzer module useful for "first glance"
   debugging on remote boards
 
 Driver improvements:
 - add support for a new model to gpio-pca953x
 - lock GPIOs as interrupts in gpio-sim when the lines are requested as irqs
   via the simulator domain + some other minor improvements
 - improve error reporting in gpio-syscon
 - convert gpio-ath79 to using dynamic GPIO base and range
 - use pcibios_err_to_errno() for converting PCIBIOS error codes to errno
   vaues in gpio-amd8111 and gpio-rdc321x
 - allow building gpio-brcmstb for the BCM2835 architecture
 
 DT bindings:
 - convert DT bindings for lsi,zevio, mpc8xxx, and atmel to DT schema
 - document new properties for aspeed,gpio, fsl,qoriq-gpio and gpio-vf610
 - document new compatibles for pca953x and fsl,qoriq-gpio
 
 Documentation:
 - document stricter behavior of the GPIO character device uAPI with regards to
   reconfiguring requested line without direction set
 - clarify the effect of the active-low flag on line values and edges
 - remove documentation for the legacy GPIO API in order to stop tempting
   people to use it
 - document the preference for using pread() for reading edge events in the
   sysfs API
 
 Other:
 - add an extended initializer to the interrupt simulator allowing to specify
   a number of callbacks callers can use to be notified about irqs being
   requested and released
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Merge tag 'gpio-updates-for-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "The majority of added lines are two new modules: the GPIO virtual
  consumer module that improves our ability to add automated tests for
  the kernel API and the "sloppy" logic analyzer module that uses the
  GPIO API to implement a coarse-grained debugging tool for useful for
  remote development.

  Other than that we have the usual assortment of various driver
  extensions, improvements to the core GPIO code, DT-bindings and other
  documentation updates as well as an extension to the interrupt
  simulator:

  GPIOLIB core:
   - rework kfifo handling rework in the character device code
   - improve the labeling of GPIOs requested as interrupts and show more
     info on interrupt-only GPIOs in debugfs
   - remove unused APIs
   - unexport interfaces that are only used from the core GPIO code
   - drop the return value from gpiochip_set_desc_names() as it cannot
     fail
   - move a string array definition out of a header and into a specific
     compilation unit
   - convert the last user of gpiochip_get_desc() other than GPIO core
     to using a safer alternative
   - use array_index_nospec() where applicable

  New drivers:
   - add a "virtual GPIO consumer" module that allows requesting GPIOs
     from actual hardware and driving tests of the in-kernel GPIO API
     from user-space over debugfs
   - add a GPIO-based "sloppy" logic analyzer module useful for "first
     glance" debugging on remote boards

  Driver improvements:
   - add support for a new model to gpio-pca953x
   - lock GPIOs as interrupts in gpio-sim when the lines are requested
     as irqs via the simulator domain + some other minor improvements
   - improve error reporting in gpio-syscon
   - convert gpio-ath79 to using dynamic GPIO base and range
   - use pcibios_err_to_errno() for converting PCIBIOS error codes to
     errno vaues in gpio-amd8111 and gpio-rdc321x
   - allow building gpio-brcmstb for the BCM2835 architecture

  DT bindings:
   - convert DT bindings for lsi,zevio, mpc8xxx, and atmel to DT schema
   - document new properties for aspeed,gpio, fsl,qoriq-gpio and
     gpio-vf610
   - document new compatibles for pca953x and fsl,qoriq-gpio

  Documentation:
   - document stricter behavior of the GPIO character device uAPI with
     regards to reconfiguring requested line without direction set
   - clarify the effect of the active-low flag on line values and edges
   - remove documentation for the legacy GPIO API in order to stop
     tempting people to use it
   - document the preference for using pread() for reading edge events
     in the sysfs API

  Other:
   - add an extended initializer to the interrupt simulator allowing to
     specify a number of callbacks callers can use to be notified about
     irqs being requested and released"

* tag 'gpio-updates-for-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (41 commits)
  gpio: mc33880: Convert comma to semicolon
  gpio: virtuser: actually use the "trimmed" local variable
  dt-bindings: gpio: convert Atmel GPIO to json-schema
  gpio: virtuser: new virtual testing driver for the GPIO API
  dt-bindings: gpio: vf610: Allow gpio-line-names to be set
  gpio: sim: lock GPIOs as interrupts when they are requested
  genirq/irq_sim: add an extended irq_sim initializer
  dt-bindings: gpio: fsl,qoriq-gpio: Add compatible string fsl,ls1046a-gpio
  gpiolib: unexport gpiochip_get_desc()
  gpio: add sloppy logic analyzer using polling
  Documentation: gpio: Reconfiguration with unset direction (uAPI v2)
  Documentation: gpio: Reconfiguration with unset direction (uAPI v1)
  dt-bindings: gpio: fsl,qoriq-gpio: add common property gpio-line-names
  gpio: ath79: convert to dynamic GPIO base allocation
  pinctrl: da9062: replace gpiochip_get_desc() with gpio_device_get_desc()
  gpiolib: put gpio_suffixes in a single compilation unit
  Documentation: gpio: Clarify effect of active low flag on line edges
  Documentation: gpio: Clarify effect of active low flag on line values
  gpiolib: Remove data-less gpiochip_add() function
  gpio: sim: use devm_mutex_init()
  ...
2024-07-15 17:53:24 -07:00
Vamsi Attunuru
5f67eef6df misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver
Adds a misc driver for Marvell CN10K DPI(DMA Engine) device's physical
function which initializes DPI DMA hardware's global configuration and
enables hardware mailbox channels between physical function (PF) and
it's virtual functions (VF). VF device drivers (User space drivers) use
this hw mailbox to communicate any required device configuration on it's
respective VF device. Accordingly, this DPI PF driver provisions the
VF device resources.

At the hardware level, the DPI physical function (PF) acts as a management
interface to setup the VF device resources, VF devices are only provisioned
to handle or control the actual DMA Engine's data transfer capabilities.

Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com>
Reviewed-by: Srujana Challa <schalla@marvell.com>
Link: https://lore.kernel.org/r/20240706153009.3775333-1-vattunuru@marvell.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-10 14:58:29 +02:00
Mark-PK Tsai
228159802b docs: iommu: Remove outdated Documentation/userspace-api/iommu.rst
The Documentation/userspace-api/iommu.rst file has become outdated due
to the removal of associated structures and APIs.

Specifically, struct such as iommu_cache_invalidate_info and guest
pasid related uapi were removed in commit 0c9f178778 ("iommu:
Remove guest pasid related interfaces and definitions").
And the corresponding uapi/linux/iommu.h file was removed in
commit 00a9bc6070 ("iommu: Move iommu fault data to
linux/iommu.h").

Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20240702120617.26882-1-mark-pk.tsai@mediatek.com
[will: Remove stale reference to 'iommu' from index.rst]
Signed-off-by: Will Deacon <will@kernel.org>
2024-07-09 11:08:17 +01:00
Steven Rostedt (Google)
4ecaf7e98a tracing: Have memmapped ring buffer use ioctl of "R" range 0x20-2F
To prevent conflicts with other ioctl numbers to allow strace to have an
idea of what is happening, add the range of ioctls for the trace buffer
mapping from _IO("T", 0x1) to the range of "R" 0x20 - 0x2F.

Link: https://lore.kernel.org/linux-trace-kernel/20240630105322.GA17573@altlinux.org/
Link: https://lore.kernel.org/linux-trace-kernel/20240630213626.GA23566@altlinux.org/

Cc: Jonathan Corbet <corbet@lwn.net>
Fixes: cf9f0f7c4c ("tracing: Allow user-space mapping of the ring-buffer")
Link: https://lore.kernel.org/20240702153354.367861db@rorschach.local.home
Reported-by: "Dmitry V. Levin" <ldv@strace.io>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-07-03 16:40:45 -04:00
Kent Gibson
6a9c15083b Documentation: gpio: Reconfiguration with unset direction (uAPI v2)
Update description of reconfiguration rules, adding requirement that a
direction flag be set to enable changing configuration for a line.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/20240626052925.174272-5-warthog618@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-07-01 09:38:45 +02:00
Kent Gibson
e48fe75afa Documentation: gpio: Reconfiguration with unset direction (uAPI v1)
Update description of reconfiguration rules, adding requirement that a
direction flag be set or the configuration is considered invalid.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/20240626052925.174272-4-warthog618@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-07-01 09:38:45 +02:00
Jacopo Mondi
d260c12247 media: uapi: Add PiSP Compressed RAW Bayer formats
Add Raspberry Pi compressed RAW Bayer formats.

The compression algorithm description is provided by Nick Hollinghurst
<nick.hollinghurst@raspberrypi.com> from Raspberry Pi.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-27 13:06:47 +02:00
Jacopo Mondi
8f6c220222 media: uapi: Add meta pixel format for PiSP BE config
Add format description for the PiSP Back End configuration parameter
buffer.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-27 13:06:47 +02:00
Jacopo Mondi
d1741141d0 media: uapi: Add a pixel format for BGR48 and RGB48
Add BGR48 and RGB48 16-bit per component image formats.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-27 13:06:47 +02:00
Jacopo Mondi
dd6aa1e1de media: uapi: pixfmt-luma: Document MIPI CSI-2 packing
The Y10P, Y12P and Y14P format variants are packed according to
the RAW10, RAW12 and RAW14 formats as defined by the MIPI CSI-2
specification. Document it.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-27 13:06:46 +02:00
Jeff Xu
653c5c7511 mm/memfd: add documentation for MFD_NOEXEC_SEAL MFD_EXEC
When MFD_NOEXEC_SEAL was introduced, there was one big mistake: it didn't
have proper documentation.  This led to a lot of confusion, especially
about whether or not memfd created with the MFD_NOEXEC_SEAL flag is
sealable.  Before MFD_NOEXEC_SEAL, memfd had to explicitly set
MFD_ALLOW_SEALING to be sealable, so it's a fair question.

As one might have noticed, unlike other flags in memfd_create,
MFD_NOEXEC_SEAL is actually a combination of multiple flags.  The idea is
to make it easier to use memfd in the most common way, which is NOEXEC +
F_SEAL_EXEC + MFD_ALLOW_SEALING.  This works with sysctl vm.noexec to help
existing applications move to a more secure way of using memfd.

Proposals have been made to put MFD_NOEXEC_SEAL non-sealable, unless
MFD_ALLOW_SEALING is set, to be consistent with other flags [1], Those
are based on the viewpoint that each flag is an atomic unit, which is a
reasonable assumption.  However, MFD_NOEXEC_SEAL was designed with the
intent of promoting the most secure method of using memfd, therefore a
combination of multiple functionalities into one bit.

Furthermore, the MFD_NOEXEC_SEAL has been added for more than one year,
and multiple applications and distributions have backported and utilized
it.  Altering ABI now presents a degree of risk and may lead to
disruption.

MFD_NOEXEC_SEAL is a new flag, and applications must change their code to
use it.  There is no backward compatibility problem.

When sysctl vm.noexec == 1 or 2, applications that don't set
MFD_NOEXEC_SEAL or MFD_EXEC will get MFD_NOEXEC_SEAL memfd.  And
old-application might break, that is by-design, in such a system vm.noexec
= 0 shall be used.  Also no backward compatibility problem.

I propose to include this documentation patch to assist in clarifying the
semantics of MFD_NOEXEC_SEAL, thereby preventing any potential future
confusion.

Finally, I would like to express my gratitude to David Rheinsberg and
Barnabás Pőcze for initiating the discussion on the topic of sealability.

[1]
https://lore.kernel.org/lkml/20230714114753.170814-1-david@readahead.eu/

[jeffxu@chromium.org: updates per Randy]
  Link: https://lkml.kernel.org/r/20240611034903.3456796-2-jeffxu@chromium.org
[jeffxu@chromium.org: v3]
  Link: https://lkml.kernel.org/r/20240611231409.3899809-2-jeffxu@chromium.org
Link: https://lkml.kernel.org/r/20240607203543.2151433-2-jeffxu@google.com
Signed-off-by: Jeff Xu <jeffxu@chromium.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Barnabás Pőcze <pobrn@protonmail.com>
Cc: Daniel Verkamp <dverkamp@chromium.org>
Cc: David Rheinsberg <david@readahead.eu>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jorge Lucangeli Obes <jorgelo@chromium.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-06-15 10:43:07 -07:00
Benjamin Mugnier
15765ff714 media: i2c: vgxy61: Fix device name
Rename 'st-vgxy61' to 'vgxy61', dropping the vendor prefix to follow the
same naming scheme as the vast majority of device drivers.
The device tree binding does not fall into binding rename exceptions and
therefore must not be changed. Keep its legacy name.

Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-15 11:16:40 +02:00
Kent Gibson
08d94c7428 Documentation: gpio: Clarify effect of active low flag on line edges
The documentation does not make sufficiently clear that edge polarity is
based on changes to the logical line values, and that the physical
polarity of edges is dependent on the active low flag.

Clarify the relationship between the active low flag and edge polarity
for the functions that read edge events.

Suggested-by: David C. Rankin <drankinatty@gmail.com>
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/20240610092157.9147-3-warthog618@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-06-12 14:02:54 +02:00
Kent Gibson
5ca84d416e Documentation: gpio: Clarify effect of active low flag on line values
The documentation does not make sufficiently clear that the uAPI deals with
logical line values, nor does it describe the influence of the active low
flag on the mapping between physical and logical line values.

Clarify the relationship between physical and logical line values and the
effect of the active low flag for ioctls passing line values.

Suggested-by: David C. Rankin <drankinatty@gmail.com>
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/20240610092157.9147-2-warthog618@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-06-12 14:02:54 +02:00
Ming Qian
62096c4839 media: v4l2-ctrls: Add average QP control
Add a control V4L2_CID_MPEG_VIDEO_AVERAGE_QP to report the average QP
value of the current encoded frame. The value applies to the last
dequeued capture buffer.

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-10 10:24:30 +02:00
Hans Verkuil
8f79b09bbe Linux 6.10-rc3
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Merge tag 'v6.10-rc3'

Linux 6.10-rc3

This is needed for the ipu6 and mei fixes.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-06-10 10:20:16 +02:00
Huichun Feng
7f1e45f4ae docs: gpio: prefer pread(2) for interrupt reading
In legacy sysfs GPIO, when using poll(2) on the sysfs GPIO value for
state change awaiting, a subsequent read(2) is required for consuming
the event, which the doc recommends the use of lseek(2) or
close-and-reopen to reset the file offset afterwards.

The recommendations however, require at least 2 syscalls to consume
the event. Gladly, use of pread(2) require only 1 syscall for the
consumption. Let's advertise this usage by prioritizing its placement.

Signed-off-by: Huichun Feng <foxhoundsk.tw@gmail.com>
Link: https://lore.kernel.org/r/20240609173728.2950808-1-foxhoundsk.tw@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-06-10 09:37:52 +02:00
Fritz Koenig
96646f3a5a Documentation: media: Fix v4l2_ctrl_vp8_frame struct
Description and control were out of sync.

Signed-off-by: Fritz Koenig <frkoenig@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-05-31 13:51:17 +02:00
Sakari Ailus
fd7ccfb112 media: Documentation: v4l: Fix ACTIVE route flag
The documentation in one occasion mentions the
VIDIOC_SUBDEV_STREAM_FL_ACTIVE flag. This was meant to be
V4L2_SUBDEV_STREAM_FL_ACTIVE as it's a flag, not an IOCTL. Fix it.

Fixes: cd2c75454d ("media: Documentation: Document S_ROUTING behaviour")
Reported-by: Samuel Wein PhD <sam@samwein.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-05-28 08:00:14 +02:00
Jeff Xu
c010d09900 mseal: add documentation
Add documentation for mseal().

Link: https://lkml.kernel.org/r/20240415163527.626541-5-jeffxu@chromium.org
Signed-off-by: Jeff Xu <jeffxu@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jeff Xu <jeffxu@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jorge Lucangeli Obes <jorgelo@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Pedro Falcato <pedro.falcato@gmail.com>
Cc: Stephen Röttger <sroettger@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Amer Al Shanawany <amer.shanawany@gmail.com>
Cc: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-23 19:40:26 -07:00
Linus Torvalds
5f16eb0549 Char/Misc and other driver subsystem changes for 6.10-rc1
Here is the big set of char/misc and other driver subsystem updates for
 6.10-rc1.  Nothing major here, just lots of new drivers and updates for
 apis and new hardware types.  Included in here are:
   - big IIO driver updates with more devices and drivers added
   - fpga driver updates
   - hyper-v driver updates
   - uio_pruss driver removal, no one uses it, other drivers control the
     same hardware now
   - binder minor updates
   - mhi driver updates
   - excon driver updates
   - counter driver updates
   - accessability driver updates
   - coresight driver updates
   - other hwtracing driver updates
   - nvmem driver updates
   - slimbus driver updates
   - spmi driver updates
   - other smaller misc and char driver updates
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver subsystem updates from Greg KH:
 "Here is the big set of char/misc and other driver subsystem updates
  for 6.10-rc1. Nothing major here, just lots of new drivers and updates
  for apis and new hardware types. Included in here are:

   - big IIO driver updates with more devices and drivers added

   - fpga driver updates

   - hyper-v driver updates

   - uio_pruss driver removal, no one uses it, other drivers control the
     same hardware now

   - binder minor updates

   - mhi driver updates

   - excon driver updates

   - counter driver updates

   - accessability driver updates

   - coresight driver updates

   - other hwtracing driver updates

   - nvmem driver updates

   - slimbus driver updates

   - spmi driver updates

   - other smaller misc and char driver updates

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

* tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (319 commits)
  misc: ntsync: mark driver as "broken" to prevent from building
  spmi: pmic-arb: Add multi bus support
  spmi: pmic-arb: Register controller for bus instead of arbiter
  spmi: pmic-arb: Make core resources acquiring a version operation
  spmi: pmic-arb: Make the APID init a version operation
  spmi: pmic-arb: Fix some compile warnings about members not being described
  dt-bindings: spmi: Deprecate qcom,bus-id
  dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
  spmi: pmic-arb: Replace three IS_ERR() calls by null pointer checks in spmi_pmic_arb_probe()
  spmi: hisi-spmi-controller: Do not override device identifier
  dt-bindings: spmi: hisilicon,hisi-spmi-controller: clean up example
  dt-bindings: spmi: hisilicon,hisi-spmi-controller: fix binding references
  spmi: make spmi_bus_type const
  extcon: adc-jack: Document missing struct members
  extcon: realtek: Remove unused of_gpio.h
  extcon: usbc-cros-ec: Convert to platform remove callback returning void
  extcon: usb-gpio: Convert to platform remove callback returning void
  extcon: max77843: Convert to platform remove callback returning void
  extcon: max3355: Convert to platform remove callback returning void
  extcon: intel-mrfld: Convert to platform remove callback returning void
  ...
2024-05-22 12:26:46 -07:00