<feed xmlns='http://www.w3.org/2005/Atom'>
<title>kernel/linux.git/Documentation/userspace-api, branch v6.19.11</title>
<subtitle>Linux kernel stable tree (mirror)</subtitle>
<id>https://git.radix-linux.su/kernel/linux.git/atom?h=v6.19.11</id>
<link rel='self' href='https://git.radix-linux.su/kernel/linux.git/atom?h=v6.19.11'/>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/'/>
<updated>2026-01-06T09:14:13+00:00</updated>
<entry>
<title>media: Documentation: mali-c55: Use v4l2-isp version identifier</title>
<updated>2026-01-06T09:14:13+00:00</updated>
<author>
<name>Jacopo Mondi</name>
<email>jacopo.mondi@ideasonboard.com</email>
</author>
<published>2025-12-15T12:15:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=003c492f9e765b82fe731963d9dbd7b4ae92c2b4'/>
<id>urn:sha1:003c492f9e765b82fe731963d9dbd7b4ae92c2b4</id>
<content type='text'>
The Mali C55 driver uses the v4l2-isp framework, which defines its own
versioning numbers.

Do not use the Mali C55 specific version identifier in the code example
in the documentation of the Mali C55 stats and params metadata formats.

Signed-off-by: Jacopo Mondi &lt;jacopo.mondi@ideasonboard.com&gt;
Reviewed-by: Daniel Scally &lt;dan.scally@ideasonboard.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil+cisco@kernel.org&gt;
</content>
</entry>
<entry>
<title>Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm</title>
<updated>2025-12-06T22:01:20+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-12-06T22:01:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=509d3f45847627f4c5cdce004c3ec79262b5239c'/>
<id>urn:sha1:509d3f45847627f4c5cdce004c3ec79262b5239c</id>
<content type='text'>
Pull non-MM updates from Andrew Morton:

 - "panic: sys_info: Refactor and fix a potential issue" (Andy Shevchenko)
   fixes a build issue and does some cleanup in ib/sys_info.c

 - "Implement mul_u64_u64_div_u64_roundup()" (David Laight)
   enhances the 64-bit math code on behalf of a PWM driver and beefs up
   the test module for these library functions

 - "scripts/gdb/symbols: make BPF debug info available to GDB" (Ilya Leoshkevich)
   makes BPF symbol names, sizes, and line numbers available to the GDB
   debugger

 - "Enable hung_task and lockup cases to dump system info on demand" (Feng Tang)
   adds a sysctl which can be used to cause additional info dumping when
   the hung-task and lockup detectors fire

 - "lib/base64: add generic encoder/decoder, migrate users" (Kuan-Wei Chiu)
   adds a general base64 encoder/decoder to lib/ and migrates several
   users away from their private implementations

 - "rbree: inline rb_first() and rb_last()" (Eric Dumazet)
   makes TCP a little faster

 - "liveupdate: Rework KHO for in-kernel users" (Pasha Tatashin)
   reworks the KEXEC Handover interfaces in preparation for Live Update
   Orchestrator (LUO), and possibly for other future clients

 - "kho: simplify state machine and enable dynamic updates" (Pasha Tatashin)
   increases the flexibility of KEXEC Handover. Also preparation for LUO

 - "Live Update Orchestrator" (Pasha Tatashin)
   is a major new feature targeted at cloud environments. Quoting the
   cover letter:

      This series introduces the Live Update Orchestrator, a kernel
      subsystem designed to facilitate live kernel updates using a
      kexec-based reboot. This capability is critical for cloud
      environments, allowing hypervisors to be updated with minimal
      downtime for running virtual machines. LUO achieves this by
      preserving the state of selected resources, such as memory,
      devices and their dependencies, across the kernel transition.

      As a key feature, this series includes support for preserving
      memfd file descriptors, which allows critical in-memory data, such
      as guest RAM or any other large memory region, to be maintained in
      RAM across the kexec reboot.

   Mike Rappaport merits a mention here, for his extensive review and
   testing work.

 - "kexec: reorganize kexec and kdump sysfs" (Sourabh Jain)
   moves the kexec and kdump sysfs entries from /sys/kernel/ to
   /sys/kernel/kexec/ and adds back-compatibility symlinks which can
   hopefully be removed one day

 - "kho: fixes for vmalloc restoration" (Mike Rapoport)
   fixes a BUG which was being hit during KHO restoration of vmalloc()
   regions

* tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (139 commits)
  calibrate: update header inclusion
  Reinstate "resource: avoid unnecessary lookups in find_next_iomem_res()"
  vmcoreinfo: track and log recoverable hardware errors
  kho: fix restoring of contiguous ranges of order-0 pages
  kho: kho_restore_vmalloc: fix initialization of pages array
  MAINTAINERS: TPM DEVICE DRIVER: update the W-tag
  init: replace simple_strtoul with kstrtoul to improve lpj_setup
  KHO: fix boot failure due to kmemleak access to non-PRESENT pages
  Documentation/ABI: new kexec and kdump sysfs interface
  Documentation/ABI: mark old kexec sysfs deprecated
  kexec: move sysfs entries to /sys/kernel/kexec
  test_kho: always print restore status
  kho: free chunks using free_page() instead of kfree()
  selftests/liveupdate: add kexec test for multiple and empty sessions
  selftests/liveupdate: add simple kexec-based selftest for LUO
  selftests/liveupdate: add userspace API selftests
  docs: add documentation for memfd preservation via LUO
  mm: memfd_luo: allow preserving memfd
  liveupdate: luo_file: add private argument to store runtime state
  mm: shmem: export some functions to internal.h
  ...
</content>
</entry>
<entry>
<title>Merge tag 'drm-next-2025-12-03' of https://gitlab.freedesktop.org/drm/kernel</title>
<updated>2025-12-04T16:53:30+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-12-04T16:53:30+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=6dfafbd0299a60bfb5d5e277fdf100037c7ded07'/>
<id>urn:sha1:6dfafbd0299a60bfb5d5e277fdf100037c7ded07</id>
<content type='text'>
Pull drm updates from Dave Airlie:
 "There was a rather late merge of a new color pipeline feature, that
  some userspace projects are blocked on, and has seen a lot of work in
  amdgpu. This should have seen some time in -next. There is additional
  support for this for Intel, that if it arrives in the next day or two
  I'll pass it on in another pull request and you can decide if you want
  to take it.

  Highlights:
   - Arm Ethos NPU accelerator driver
   - new DRM color pipeline support
   - amdgpu will now run discrete SI/CIK cards instead of radeon, which
     enables vulkan support in userspace
   - msm gets gen8 gpu support
   - initial Xe3P support in xe

  Full detail summary:

  New driver:
   - Arm Ethos-U65/U85 accel driver

  Core:
   - support the drm color pipeline in vkms/amdgfx
   - add support for drm colorop pipeline
   - add COLOR PIPELINE plane property
   - add DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE
   - throttle dirty worker with vblank
   - use drm_for_each_bridge_in_chain_scoped in drm's bridge code
   - Ensure drm_client_modeset tests are enabled in UML
   - add simulated vblank interrupt - use in drivers
   - dumb buffer sizing helper
   - move freeing of drm client memory to driver
   - crtc sharpness strength property
   - stop using system_wq in scheduler/drivers
   - support emergency restore in drm-client

  Rust:
   - make slice::as_flattened usable on all supported rustc
   - add FromBytes::from_bytes_prefix() method
   - remove redundant device ptr from Rust GEM object
   - Change how AlwaysRefCounted is implemented for GEM objects

  gpuvm:
   - Add deferred vm_bo cleanup to GPUVM (for rust)

  atomic:
   - cleanup and improve state handling interfaces

  buddy:
   - optimize block management

  dma-buf:
   - heaps: Create heap per CMA reserved location
   - improve userspace documentation

  dp:
   - add POST_LT_ADJ_REQ training sequence
   - DPCD dSC quirk for synaptics panamera devices
   - helpers to query branch DSC max throughput

  ttm:
   - Rename ttm_bo_put to ttm_bo_fini
   - allow page protection flags on risc-v
   - rework pipelined eviction fence handling

  amdgpu:
   - enable amdgpu by default for SI/CI dGPUs
   - enable DC by default on SI
   - refactor CIK/SI enablement
   - add ABM KMS property
   - Re-enable DM idle optimizations
   - DC Analog encoders support
   - Powerplay fixes for fiji/iceland
   - Enable DC on bonaire by default
   - HMM cleanup
   - Add new RAS framework
   - DML2.1 updates
   - YCbCr420 fixes
   - DC FP fixes
   - DMUB fixes
   - LTTPR fixes
   - DTBCLK fixes
   - DMU cursor offload handling
   - Userq validation improvements
   - Unify shutdown callback handling
   - Suspend improvements
   - Power limit code cleanup
   - SR-IOV fixes
   - AUX backlight fixes
   - DCN 3.5 fixes
   - HDMI compliance fixes
   - DCN 4.0.1 cursor updates
   - DCN interrupt fix
   - DC KMS full update improvements
   - Add additional HDCP traces
   - DCN 3.2 fixes
   - DP MST fixes
   - Add support for new SR-IOV mailbox interface
   - UQ reset support
   - HDP flush rework
   - VCE1 support

  amdkfd:
   - HMM cleanups
   - Relax checks on save area overallocations
   - Fix GPU mappings after prefetch

  radeon:
   - refactor CIK/SI enablement

  xe:
   - Initial Xe3P support
   - panic support on VRAM for display
   - fix stolen size check
   - Loosen used tracking restriction
   - New SR-IOV debugfs structure and debugfs updates
   - Hide the GPU madvise flag behind a VM_BIND flag
   - Always expose VRAM provisioning data on discrete GPUs
   - Allow VRAM mappings for userptr when used with SVM
   - Allow pinning of p2p dma-buf
   - Use per-tile debugfs where appropriate
   - Add documentation for Execution Queues
   - PF improvements
   - VF migration recovery redesign work
   - User / Kernel VRAM partitioning
   - Update Tile-based messages
   - Allow configfs to disable specific GT types
   - VF provisioning and migration improvements
   - use SVM range helpers in PT layer
   - Initial CRI support
   - access VF registers using dedicated MMIO view
   - limit number of jobs per exec queue
   - add sriov_admin sysfs tree
   - more crescent island specific support
   - debugfs residency counter
   - SRIOV migration work
   - runtime registers for GFX 35

  i915:
   - add initial Xe3p_LPD display version 35 support
   - Enable LNL+ content adaptive sharpness filter
   - Use optimized VRR guardband
   - Enable Xe3p LT PHY
   - enable FBC support for Xe3p_LPD display
   - add display 30.02 firmware support
   - refactor SKL+ watermark latency setup
   - refactor fbdev handling
   - call i915/xe runtime PM via function pointers
   - refactor i915/xe stolen memory/display interfaces
   - use display version instead of gfx version in display code
   - extend i915_display_info with Type-C port details
   - lots of display cleanups/refactorings
   - set O_LARGEFILE in __create_shmem
   - skuip guc communication warning on reset
   - fix time conversions
   - defeature DRRS on LNL+
   - refactor intel_frontbuffer split between i915/xe/display
   - convert inteL_rom interfaces to struct drm_device
   - unify display register polling interfaces
   - aovid lock inversion when pinning to GGTT on CHV/BXT+VTD

  panel:
   - Add KD116N3730A08/A12, chromebook mt8189
   - JT101TM023, LQ079L1SX01,
   - GLD070WX3-SL01 MIPI DSI
   - Samsung LTL106AL0, Samsung LTL106AL01
   - Raystar RFF500F-AWH-DNN
   - Winstar WF70A8SYJHLNGA
   - Wanchanglong w552946aaa
   - Samsung SOFEF00
   - Lenovo X13s panel
   - ilitek-ili9881c - add rpi 5" support
   - visionx-rm69299 - add backlight support
   - edp - support AUI B116XAN02.0

  bridge:
   - improve ref counting
   - ti-sn65dsi86 - add support for DP mode with HPD
   - synopsis: support CEC, init timer with correct freq
   - ASL CS5263 DP-to-HDMI bridge support

  nova-core:
   - introduce bitfield! macro
   - introduce safe integer converters
   - GSP inits to fully booted state on Ampere
   - Use more future-proof register for GPU identification

  nova-drm:
   - select NOVA_CORE
   - 64-bit only

  nouveau:
   - improve reclocking on tegra 186+
   - add large page and compression support

  msm:
   - GPU:
      - Gen8 support: A840 (Kaanapali) and X2-85 (Glymur)
      - A612 support
   - MDSS:
      - Added support for Glymur and QCS8300 platforms
   - DPU:
      - Enabled Quad-Pipe support, unlocking higher resolutions support
      - Added support for Glymur platform
      - Documented DPU on QCS8300 platform as supported
   - DisplayPort:
      - Added support for Glymur platform
      - Added support lame remapping inside DP block
      - Documented DisplayPort controller on QCS8300 and SM6150/QCS615
        as supported

  tegra:
   - NVJPG driver

  panfrost:
   - display JM contexts over debugfs
   - export JM contexts to userspace
   - improve error and job handling

  panthor:
   - support custom ASN_HASH for mt8196
   - support mali-G1 GPU
   - flush shmem write before mapping buffers uncached
   - make timeout per-queue instead of per-job

  mediatek:
   - MT8195/88 HDMIv2/DDCv2 support

  rockchip:
   - dsi: add support for RK3368

  amdxdna:
   - enhance runtime PM
   - last hardware error reading uapi
   - support firmware debug output
   - add resource and telemetry data uapi
   - preemption support

  imx:
   - add driver for HDMI TX Parallel audio interface

  ivpu:
   - add support for user-managed preemption buffer
   - add userptr support
   - update JSM firware API to 3.33.0
   - add better alloc/free warnings
   - fix page fault in unbind all bos
   - rework bind/unbind of imported buffers
   - enable MCA ECC signalling
   - split fw runtime and global memory buffers
   - add fdinfo memory statistics

  tidss:
   - convert to drm logging
   - logging cleanup

  ast:
   - refactor generation init paths
   - add per chip generation detect_tx_chip
   - set quirks for each chip model

  atmel-hlcdc:
   - set LCDC_ATTRE register in plane disable
   - set correct values for plane scaler

  solomon:
   - use drm helper for get_modes and move_valid

  sitronix:
   - fix output position when clearing screens

  qaic:
   - support dma-buf exports
   - support new firmware's READ_DATA implementation
   - sahara AIC200 image table update
   - add sysfs support
   - add coredump support
   - add uevents support
   - PM support

  sun4i:
   - layer refactors to decouple plane from output
   - improve DE33 support

  vc4:
   - switch to generic CEC helpers

  komeda:
   - use drm_ logging functions

  vkms:
   - configfs support for display configuration

  vgem:
   - fix fence timer deadlock

  etnaviv:
   - add HWDB entry for GC8000 Nano Ultra VIP r6205"

* tag 'drm-next-2025-12-03' of https://gitlab.freedesktop.org/drm/kernel: (1869 commits)
  Revert "drm/amd: Skip power ungate during suspend for VPE"
  drm/amdgpu: use common defines for HUB faults
  drm/amdgpu/gmc12: add amdgpu_vm_handle_fault() handling
  drm/amdgpu/gmc11: add amdgpu_vm_handle_fault() handling
  drm/amdgpu: use static ids for ACP platform devs
  drm/amdgpu/sdma6: Update SDMA 6.0.3 FW version to include UMQ protected-fence fix
  drm/amdgpu: Forward VMID reservation errors
  drm/amdgpu/gmc8: Delegate VM faults to soft IRQ handler ring
  drm/amdgpu/gmc7: Delegate VM faults to soft IRQ handler ring
  drm/amdgpu/gmc6: Delegate VM faults to soft IRQ handler ring
  drm/amdgpu/gmc6: Cache VM fault info
  drm/amdgpu/gmc6: Don't print MC client as it's unknown
  drm/amdgpu/cz_ih: Enable soft IRQ handler ring
  drm/amdgpu/tonga_ih: Enable soft IRQ handler ring
  drm/amdgpu/iceland_ih: Enable soft IRQ handler ring
  drm/amdgpu/cik_ih: Enable soft IRQ handler ring
  drm/amdgpu/si_ih: Enable soft IRQ handler ring
  drm/amd/display: fix typo in display_mode_core_structs.h
  drm/amd/display: fix Smart Power OLED not working after S4
  drm/amd/display: Move RGB-type check for audio sync to DCE HW sequence
  ...
</content>
</entry>
<entry>
<title>Merge tag 'media/v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media</title>
<updated>2025-12-04T16:15:19+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-12-04T16:15:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=d7aa60d966461ca6114dc348e97889dc8850ff7f'/>
<id>urn:sha1:d7aa60d966461ca6114dc348e97889dc8850ff7f</id>
<content type='text'>
Pull media updates from Mauro Carvalho Chehab:

 - New drivers:
    - Mali-C55 ISP
    - Rockchip VICAP (RKCIF)
    - RKVDEC HEVC Decoder
    - Renesas RZV2H IVC
    - Sony IMX111 CMOS sensor driver

 - Removed STi C8SECTPFE Driver

 - Added a V4L2 ISP generic framework

 - Usual set of cleanup, fixes and driver improvements

* tag 'media/v6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (249 commits)
  media: rockchip: rkcif: add support for rk3568 vicap mipi capture
  media: rockchip: rkcif: add support for rk3568 vicap dvp capture
  media: rockchip: rkcif: add support for px30 vip dvp capture
  media: rockchip: rkcif: add abstraction for dma blocks
  media: rockchip: rkcif: add abstraction for interface and crop blocks
  media: rockchip: add driver for the rockchip camera interface
  media: dt-bindings: add rockchip rk3568 vicap
  media: dt-bindings: add rockchip px30 vip
  media: dt-bindings: video-interfaces: add defines for sampling modes
  Documentation: admin-guide: media: add rockchip camera interface
  media: mali-c55: Mark pm handlers as __maybe_unused
  media: mali-c55: Assert ISP blocks size correctness
  media: v4l2-isp: Rename block_info to block_type_info
  MAINTAINERS: Add entry for rzv2h-ivc driver
  media: platform: Add Renesas Input Video Control block driver
  dt-bindings: media: Add bindings for the RZ/V2H(P) IVC block
  Documentation: media: mali-c55: Document the mali-c55 parameter setting
  media: platform: Add mali-c55 parameters video node
  media: uapi: Add parameters structs to mali-c55-config.h
  media: mali-c55: Add image formats for Mali-C55 parameters buffer
  ...
</content>
</entry>
<entry>
<title>Merge tag 'docs-6.19' of git://git.lwn.net/linux</title>
<updated>2025-12-03T19:34:28+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-12-03T19:34:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=f96163865a1346b199cc38e827269296f0f24ab0'/>
<id>urn:sha1:f96163865a1346b199cc38e827269296f0f24ab0</id>
<content type='text'>
Pull documentation updates from Jonathan Corbet:
 "This has been another busy cycle for documentation, with a lot of
  build-system thrashing. That work should slow down from here on out.

   - The various scripts and tools for documentation were spread out in
     several directories; now they are (almost) all coalesced under
     tools/docs/. The holdout is the kernel-doc script, which cannot be
     easily moved without some further thought.

   - As the amount of Python code increases, we are accumulating modules
     that are imported by multiple programs. These modules have been
     pulled together under tools/lib/python/ -- at least, for
     documentation-related programs. There is other Python code in the
     tree that might eventually want to move toward this organization.

   - The Perl kernel-doc.pl script has been removed. It is no longer
     used by default, and nobody has missed it, least of all anybody who
     actually had to look at it.

   - The docs build was controlled by a complex mess of makefilese that
     few dared to touch. Mauro has moved that logic into a new program
     (tools/docs/sphinx-build-wrapper) that, with any luck at all, will
     be far easier to understand and maintain.

   - The get_feat.pl program, used to access information under
     Documentation/features/, has been rewritten in Python, bringing an
     end to the use of Perl in the docs subsystem.

   - The top-level README file has been reorganized into a more
     reader-friendly presentation.

   - A lot of Chinese translation additions

   - Typo fixes and documentation updates as usual"

* tag 'docs-6.19' of git://git.lwn.net/linux: (164 commits)
  docs: makefile: move rustdoc check to the build wrapper
  README: restructure with role-based documentation and guidelines
  docs: kdoc: various fixes for grammar, spelling, punctuation
  docs: kdoc_parser: use '@' for Excess enum value
  docs: submitting-patches: Clarify that removal of Acks needs explanation too
  docs: kdoc_parser: add data/function attributes to ignore
  docs: MAINTAINERS: update Mauro's files/paths
  docs/zh_CN: Add wd719x.rst translation
  docs/zh_CN: Add libsas.rst translation
  get_feat.pl: remove it, as it got replaced by get_feat.py
  Documentation/sphinx/kernel_feat.py: use class directly
  tools/docs/get_feat.py: convert get_feat.pl to Python
  Documentation/admin-guide: fix typo and comment in cscope example
  docs/zh_CN: Add data-integrity.rst translation
  docs/zh_CN: Add blk-mq.rst translation
  docs/zh_CN: Add block/index.rst translation
  docs/zh_CN: Update the Chinese translation of kbuild.rst
  docs: bring some order to our Python module hierarchy
  docs: Move the python libraries to tools/lib/python
  Documentation/kernel-parameters: Move the kernel build options
  ...
</content>
</entry>
<entry>
<title>docs: add luo documentation</title>
<updated>2025-11-27T22:24:39+00:00</updated>
<author>
<name>Pasha Tatashin</name>
<email>pasha.tatashin@soleen.com</email>
</author>
<published>2025-11-25T16:58:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=906a3306245525f408129153d5dcb7ae7e6ded44'/>
<id>urn:sha1:906a3306245525f408129153d5dcb7ae7e6ded44</id>
<content type='text'>
Add the documentation files for the Live Update Orchestrator

Link: https://lkml.kernel.org/r/20251125165850.3389713-9-pasha.tatashin@soleen.com
Signed-off-by: Pasha Tatashin &lt;pasha.tatashin@soleen.com&gt;
Reviewed-by: Mike Rapoport (Microsoft) &lt;rppt@kernel.org&gt;
Reviewed-by: Pratyush Yadav &lt;pratyush@kernel.org&gt;
Tested-by: David Matlack &lt;dmatlack@google.com&gt;
Cc: Aleksander Lobakin &lt;aleksander.lobakin@intel.com&gt;
Cc: Alexander Graf &lt;graf@amazon.com&gt;
Cc: Alice Ryhl &lt;aliceryhl@google.com&gt;
Cc: Andriy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Cc: anish kumar &lt;yesanishhere@gmail.com&gt;
Cc: Anna Schumaker &lt;anna.schumaker@oracle.com&gt;
Cc: Bartosz Golaszewski &lt;bartosz.golaszewski@linaro.org&gt;
Cc: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Cc: Borislav Betkov &lt;bp@alien8.de&gt;
Cc: Chanwoo Choi &lt;cw00.choi@samsung.com&gt;
Cc: Chen Ridong &lt;chenridong@huawei.com&gt;
Cc: Chris Li &lt;chrisl@kernel.org&gt;
Cc: Christian Brauner &lt;brauner@kernel.org&gt;
Cc: Daniel Wagner &lt;wagi@kernel.org&gt;
Cc: Danilo Krummrich &lt;dakr@kernel.org&gt;
Cc: Dan Williams &lt;dan.j.williams@intel.com&gt;
Cc: David Hildenbrand &lt;david@redhat.com&gt;
Cc: David Jeffery &lt;djeffery@redhat.com&gt;
Cc: David Rientjes &lt;rientjes@google.com&gt;
Cc: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Cc: Guixin Liu &lt;kanie@linux.alibaba.com&gt;
Cc: "H. Peter Anvin" &lt;hpa@zytor.com&gt;
Cc: Hugh Dickins &lt;hughd@google.com&gt;
Cc: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Cc: Ingo Molnar &lt;mingo@redhat.com&gt;
Cc: Ira Weiny &lt;ira.weiny@intel.com&gt;
Cc: Jann Horn &lt;jannh@google.com&gt;
Cc: Jason Gunthorpe &lt;jgg@nvidia.com&gt;
Cc: Jens Axboe &lt;axboe@kernel.dk&gt;
Cc: Joanthan Cameron &lt;Jonathan.Cameron@huawei.com&gt;
Cc: Joel Granados &lt;joel.granados@kernel.org&gt;
Cc: Johannes Weiner &lt;hannes@cmpxchg.org&gt;
Cc: Jonathan Corbet &lt;corbet@lwn.net&gt;
Cc: Lennart Poettering &lt;lennart@poettering.net&gt;
Cc: Leon Romanovsky &lt;leon@kernel.org&gt;
Cc: Leon Romanovsky &lt;leonro@nvidia.com&gt;
Cc: Lukas Wunner &lt;lukas@wunner.de&gt;
Cc: Marc Rutland &lt;mark.rutland@arm.com&gt;
Cc: Masahiro Yamada &lt;masahiroy@kernel.org&gt;
Cc: Matthew Maurer &lt;mmaurer@google.com&gt;
Cc: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Cc: Myugnjoo Ham &lt;myungjoo.ham@samsung.com&gt;
Cc: Parav Pandit &lt;parav@nvidia.com&gt;
Cc: Pratyush Yadav &lt;ptyadav@amazon.de&gt;
Cc: Randy Dunlap &lt;rdunlap@infradead.org&gt;
Cc: Roman Gushchin &lt;roman.gushchin@linux.dev&gt;
Cc: Saeed Mahameed &lt;saeedm@nvidia.com&gt;
Cc: Samiullah Khawaja &lt;skhawaja@google.com&gt;
Cc: Song Liu &lt;song@kernel.org&gt;
Cc: Steven Rostedt &lt;rostedt@goodmis.org&gt;
Cc: Stuart Hayes &lt;stuart.w.hayes@gmail.com&gt;
Cc: Tejun Heo &lt;tj@kernel.org&gt;
Cc: Thomas Gleinxer &lt;tglx@linutronix.de&gt;
Cc: Thomas Weißschuh &lt;linux@weissschuh.net&gt;
Cc: Vincent Guittot &lt;vincent.guittot@linaro.org&gt;
Cc: William Tu &lt;witu@nvidia.com&gt;
Cc: Yoann Congal &lt;yoann.congal@smile.fr&gt;
Cc: Zhu Yanjun &lt;yanjun.zhu@linux.dev&gt;
Cc: Zijun Hu &lt;quic_zijuhu@quicinc.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>liveupdate: luo_core: Live Update Orchestrator</title>
<updated>2025-11-27T22:24:37+00:00</updated>
<author>
<name>Pasha Tatashin</name>
<email>pasha.tatashin@soleen.com</email>
</author>
<published>2025-11-25T16:58:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=9e2fd062fa1713a33380cc97ef324d086dd45ba5'/>
<id>urn:sha1:9e2fd062fa1713a33380cc97ef324d086dd45ba5</id>
<content type='text'>
Patch series "Live Update Orchestrator", v8.

This series introduces the Live Update Orchestrator, a kernel subsystem
designed to facilitate live kernel updates using a kexec-based reboot. 
This capability is critical for cloud environments, allowing hypervisors
to be updated with minimal downtime for running virtual machines.  LUO
achieves this by preserving the state of selected resources, such as
memory, devices and their dependencies, across the kernel transition.

As a key feature, this series includes support for preserving memfd file
descriptors, which allows critical in-memory data, such as guest RAM or
any other large memory region, to be maintained in RAM across the kexec
reboot.

The other series that use LUO, are VFIO [1], IOMMU [2], and PCI [3]
preservations.

Github repo of this series [4].

The core of LUO is a framework for managing the lifecycle of preserved
resources through a userspace-driven interface. Key features include:

- Session Management
  Userspace agent (i.e. luod [5]) creates named sessions, each
  represented by a file descriptor (via centralized agent that controls
  /dev/liveupdate). The lifecycle of all preserved resources within a
  session is tied to this FD, ensuring automatic kernel cleanup if the
  controlling userspace agent crashes or exits unexpectedly.

- File Preservation
  A handler-based framework allows specific file types (demonstrated
  here with memfd) to be preserved. Handlers manage the serialization,
  restoration, and lifecycle of their specific file types.

- File-Lifecycle-Bound State
  A new mechanism for managing shared global state whose lifecycle is
  tied to the preservation of one or more files. This is crucial for
  subsystems like IOMMU or HugeTLB, where multiple file descriptors may
  depend on a single, shared underlying resource that must be preserved
  only once.

- KHO Integration
  LUO drives the Kexec Handover framework programmatically to pass its
  serialized metadata to the next kernel. The LUO state is finalized and
  added to the kexec image just before the reboot is triggered. In the
  future this step will also be removed once stateless KHO is
  merged [6].

- Userspace Interface
  Control is provided via ioctl commands on /dev/liveupdate for creating
  and retrieving sessions, as well as on session file descriptors for
  managing individual files.

- Testing
  The series includes a set of selftests, including userspace API
  validation, kexec-based lifecycle tests for various session and file
  scenarios, and a new in-kernel test module to validate the FLB logic.




Introduce LUO, a mechanism intended to facilitate kernel updates while
keeping designated devices operational across the transition (e.g., via
kexec).  The primary use case is updating hypervisors with minimal
disruption to running virtual machines.  For userspace side of hypervisor
update we have copyless migration.  LUO is for updating the kernel.

This initial patch lays the groundwork for the LUO subsystem.

Further functionality, including the implementation of state transition
logic, integration with KHO, and hooks for subsystems and file
descriptors, will be added in subsequent patches.

Create a character device at /dev/liveupdate.

A new uAPI header, &lt;uapi/linux/liveupdate.h&gt;, will define the necessary
structures.  The magic number for IOCTL is registered in
Documentation/userspace-api/ioctl/ioctl-number.rst.

Link: https://lkml.kernel.org/r/20251125165850.3389713-1-pasha.tatashin@soleen.com
Link: https://lkml.kernel.org/r/20251125165850.3389713-2-pasha.tatashin@soleen.com
Link: https://lore.kernel.org/all/20251018000713.677779-1-vipinsh@google.com/ [1]
Link: https://lore.kernel.org/linux-iommu/20250928190624.3735830-1-skhawaja@google.com [2]
Link: https://lore.kernel.org/linux-pci/20250916-luo-pci-v2-0-c494053c3c08@kernel.org [3]
Link: https://github.com/googleprodkernel/linux-liveupdate/tree/luo/v8 [4]
Link: https://tinyurl.com/luoddesign [5]
Link: https://lore.kernel.org/all/20251020100306.2709352-1-jasonmiu@google.com [6]
Link: https://lore.kernel.org/all/20251115233409.768044-1-pasha.tatashin@soleen.com [7]
Link: https://github.com/soleen/linux/blob/luo/v8b03/diff.v7.v8 [8]
Signed-off-by: Pasha Tatashin &lt;pasha.tatashin@soleen.com&gt;
Reviewed-by: Pratyush Yadav &lt;pratyush@kernel.org&gt;
Reviewed-by: Mike Rapoport (Microsoft) &lt;rppt@kernel.org&gt;
Tested-by: David Matlack &lt;dmatlack@google.com&gt;
Cc: Aleksander Lobakin &lt;aleksander.lobakin@intel.com&gt;
Cc: Alexander Graf &lt;graf@amazon.com&gt;
Cc: Alice Ryhl &lt;aliceryhl@google.com&gt;
Cc: Andriy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Cc: anish kumar &lt;yesanishhere@gmail.com&gt;
Cc: Anna Schumaker &lt;anna.schumaker@oracle.com&gt;
Cc: Bartosz Golaszewski &lt;bartosz.golaszewski@linaro.org&gt;
Cc: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Cc: Borislav Betkov &lt;bp@alien8.de&gt;
Cc: Chanwoo Choi &lt;cw00.choi@samsung.com&gt;
Cc: Chen Ridong &lt;chenridong@huawei.com&gt;
Cc: Chris Li &lt;chrisl@kernel.org&gt;
Cc: Christian Brauner &lt;brauner@kernel.org&gt;
Cc: Daniel Wagner &lt;wagi@kernel.org&gt;
Cc: Danilo Krummrich &lt;dakr@kernel.org&gt;
Cc: Dan Williams &lt;dan.j.williams@intel.com&gt;
Cc: David Hildenbrand &lt;david@redhat.com&gt;
Cc: David Jeffery &lt;djeffery@redhat.com&gt;
Cc: David Rientjes &lt;rientjes@google.com&gt;
Cc: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Cc: Guixin Liu &lt;kanie@linux.alibaba.com&gt;
Cc: "H. Peter Anvin" &lt;hpa@zytor.com&gt;
Cc: Hugh Dickins &lt;hughd@google.com&gt;
Cc: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Cc: Ingo Molnar &lt;mingo@redhat.com&gt;
Cc: Ira Weiny &lt;ira.weiny@intel.com&gt;
Cc: Jann Horn &lt;jannh@google.com&gt;
Cc: Jason Gunthorpe &lt;jgg@nvidia.com&gt;
Cc: Jens Axboe &lt;axboe@kernel.dk&gt;
Cc: Joanthan Cameron &lt;Jonathan.Cameron@huawei.com&gt;
Cc: Joel Granados &lt;joel.granados@kernel.org&gt;
Cc: Johannes Weiner &lt;hannes@cmpxchg.org&gt;
Cc: Jonathan Corbet &lt;corbet@lwn.net&gt;
Cc: Lennart Poettering &lt;lennart@poettering.net&gt;
Cc: Leon Romanovsky &lt;leon@kernel.org&gt;
Cc: Leon Romanovsky &lt;leonro@nvidia.com&gt;
Cc: Lukas Wunner &lt;lukas@wunner.de&gt;
Cc: Marc Rutland &lt;mark.rutland@arm.com&gt;
Cc: Masahiro Yamada &lt;masahiroy@kernel.org&gt;
Cc: Matthew Maurer &lt;mmaurer@google.com&gt;
Cc: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Cc: Myugnjoo Ham &lt;myungjoo.ham@samsung.com&gt;
Cc: Parav Pandit &lt;parav@nvidia.com&gt;
Cc: Randy Dunlap &lt;rdunlap@infradead.org&gt;
Cc: Roman Gushchin &lt;roman.gushchin@linux.dev&gt;
Cc: Saeed Mahameed &lt;saeedm@nvidia.com&gt;
Cc: Samiullah Khawaja &lt;skhawaja@google.com&gt;
Cc: Song Liu &lt;song@kernel.org&gt;
Cc: Steven Rostedt &lt;rostedt@goodmis.org&gt;
Cc: Stuart Hayes &lt;stuart.w.hayes@gmail.com&gt;
Cc: Tejun Heo &lt;tj@kernel.org&gt;
Cc: Thomas Gleinxer &lt;tglx@linutronix.de&gt;
Cc: Thomas Weißschuh &lt;linux@weissschuh.net&gt;
Cc: Vincent Guittot &lt;vincent.guittot@linaro.org&gt;
Cc: William Tu &lt;witu@nvidia.com&gt;
Cc: Yoann Congal &lt;yoann.congal@smile.fr&gt;
Cc: Zijun Hu &lt;quic_zijuhu@quicinc.com&gt;
Cc: Pratyush Yadav &lt;ptyadav@amazon.de&gt;
Cc: Zhu Yanjun &lt;yanjun.zhu@linux.dev&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>Merge tag 'v6.18-rc6' into drm-next</title>
<updated>2025-11-20T22:55:08+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2025-11-20T22:55:08+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=ce0478b02ed29465c1de3d03c3eea721355f9d2d'/>
<id>urn:sha1:ce0478b02ed29465c1de3d03c3eea721355f9d2d</id>
<content type='text'>
Linux 6.18-rc6

Backmerge in order to merge msm next

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
</content>
</entry>
<entry>
<title>Documentation: media: mali-c55: Document the mali-c55 parameter setting</title>
<updated>2025-11-14T14:48:49+00:00</updated>
<author>
<name>Daniel Scally</name>
<email>dan.scally@ideasonboard.com</email>
</author>
<published>2025-11-11T16:15:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=87b214ddfed2350d57633066fd60f3c71c57c185'/>
<id>urn:sha1:87b214ddfed2350d57633066fd60f3c71c57c185</id>
<content type='text'>
Document the mali-c55 parameter setting by expanding the relevant
pages in both admin-guide/ and userspace-api/.

Tested-by: Lad Prabhakar &lt;prabhakar.mahadev-lad.rj@bp.renesas.com&gt;
Reviewed-by: Laurent Pinchart &lt;laurent.pinchart@ideasonboard.com&gt;
Acked-by: Nayden Kanchev  &lt;nayden.kanchev@arm.com&gt;
Co-developed-by: Jacopo Mondi &lt;jacopo.mondi@ideasonboard.com&gt;
Signed-off-by: Jacopo Mondi &lt;jacopo.mondi@ideasonboard.com&gt;
Signed-off-by: Daniel Scally &lt;dan.scally@ideasonboard.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil+cisco@kernel.org&gt;
</content>
</entry>
<entry>
<title>Documentation: media: mali-c55: Add Statistics documentation</title>
<updated>2025-11-14T14:48:49+00:00</updated>
<author>
<name>Daniel Scally</name>
<email>dan.scally@ideasonboard.com</email>
</author>
<published>2025-11-11T16:15:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=b35d9f3e301dce2c822704ee4d95c0337ed9fb14'/>
<id>urn:sha1:b35d9f3e301dce2c822704ee4d95c0337ed9fb14</id>
<content type='text'>
Add documentation explaining the ability to capture statistics from
the mali-c55 driver's new V4L2 device, as well as the various tap
points from which those statistics can be drawn in the ISP's
processing flow. Additionally add a page detailing the new V4L2
meta format for the mali-c55 statistics.

Tested-by: Lad Prabhakar &lt;prabhakar.mahadev-lad.rj@bp.renesas.com&gt;
Reviewed-by: Laurent Pinchart &lt;laurent.pinchart@ideasonboard.com&gt;
Acked-by: Nayden Kanchev  &lt;nayden.kanchev@arm.com&gt;
Co-developed-by: Jacopo Mondi &lt;jacopo.mondi@ideasonboard.com&gt;
Signed-off-by: Jacopo Mondi &lt;jacopo.mondi@ideasonboard.com&gt;
Signed-off-by: Daniel Scally &lt;dan.scally@ideasonboard.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil+cisco@kernel.org&gt;
</content>
</entry>
</feed>
