Merge tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild/Kconfig updates from Nathan Chancellor:
"Kbuild:

- Drop '*_probe' pattern from modpost section

Merge tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild/Kconfig updates from Nathan Chancellor:
"Kbuild:

- Drop '*_probe' pattern from modpost section check allowlist, which
hid legitimate warnings (Johan Hovold)

- Disable -Wtype-limits altogether, instead of enabling at W=2
(Vincent Mailhol)

- Improve UAPI testing to skip testing headers that require a libc
when CONFIG_CC_CAN_LINK is not set, opening up testing of headers
with no libc dependencies to more environments (Thomas Weißschuh)

- Update gendwarfksyms documentation with required dependencies
(Jihan LIN)

- Reject invalid LLVM= values to avoid unintentionally falling back
to system toolchain (Thomas Weißschuh)

- Add a script to help run the kernel build process in a container
for consistent environments and testing (Guillaume Tucker)

- Simplify kallsyms by getting rid of the relative base (Ard
Biesheuvel)

- Performance and usability improvements to scripts/make_fit.py
(Simon Glass)

- Minor various clean ups and fixes

Kconfig:

- Move XPM icons to individual files, clearing up GTK deprecation
warnings (Rostislav Krasny)

- Support

depends on FOO if BAR

as syntactic sugar for

depends on FOO || !BAR

(Nicolas Pitre, Graham Roff)

- Refactor merge_config.sh to use awk over shell/sed/grep,
dramatically speeding up processing large number of config
fragments (Anders Roxell, Mikko Rapeli)"

* tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (39 commits)
kbuild: remove dependency of run-command on config
scripts/make_fit: Compress dtbs in parallel
scripts/make_fit: Support a few more parallel compressors
kbuild: Support a FIT_EXTRA_ARGS environment variable
scripts/make_fit: Move dtb processing into a function
scripts/make_fit: Support an initial ramdisk
scripts/make_fit: Speed up operation
rust: kconfig: Don't require RUST_IS_AVAILABLE for rustc-option
MAINTAINERS: Add scripts/install.sh into Kbuild entry
modpost: Amend ppc64 save/restfpr symnames for -Os build
MIPS: tools: relocs: Ship a definition of R_MIPS_PC32
streamline_config.pl: remove superfluous exclamation mark
kbuild: dummy-tools: Add python3
scripts: kconfig: merge_config.sh: warn on duplicate input files
scripts: kconfig: merge_config.sh: use awk in checks too
scripts: kconfig: merge_config.sh: refactor from shell/sed/grep to awk
kallsyms: Get rid of kallsyms relative base
mips: Add support for PC32 relocations in vmlinux
Documentation: dev-tools: add container.rst page
scripts: add tool to run containerized builds
...

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BackMerge tag 'v6.19-rc7' into drm-next

Linux 6.19-rc7

This is needed for msm and rust trees.

Signed-off-by: Dave Airlie <airlied@redhat.com>

drm, drm/xe: Fix xe userptr in the absence of CONFIG_DEVICE_PRIVATE

CONFIG_DEVICE_PRIVATE is not selected by default by some distros,
for example Fedora, and that leads to a regression in the xe dri

drm, drm/xe: Fix xe userptr in the absence of CONFIG_DEVICE_PRIVATE

CONFIG_DEVICE_PRIVATE is not selected by default by some distros,
for example Fedora, and that leads to a regression in the xe driver
since userptr support gets compiled out.

It turns out that DRM_GPUSVM, which is needed for xe userptr support
compiles also without CONFIG_DEVICE_PRIVATE, but doesn't compile
without CONFIG_ZONE_DEVICE.
Exclude the drm_pagemap files from compilation with !CONFIG_ZONE_DEVICE,
and remove the CONFIG_DEVICE_PRIVATE dependency from CONFIG_DRM_GPUSVM and
the xe driver's selection of it, re-enabling xe userptr for those configs.

v2:
- Don't compile the drm_pagemap files unless CONFIG_ZONE_DEVICE is set.
- Adjust the drm_pagemap.h header accordingly.

Fixes: 9e9787414882 ("drm/xe/userptr: replace xe_hmm with gpusvm")
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v6.18+
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/20260121091048.41371-2-thomas.hellstrom@linux.intel.com
(cherry picked from commit 1e372b246199ca7a35f930177fea91b557dac16e)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

show more ...

kbuild: cleanup local -Wno-type-limits exceptions

Now that -Wtype-limits is globally deactivated, there is no need for
local exceptions anymore.

Acked-by: David Sterba <dsterba@suse.com>
Signed-off

kbuild: cleanup local -Wno-type-limits exceptions

Now that -Wtype-limits is globally deactivated, there is no need for
local exceptions anymore.

Acked-by: David Sterba <dsterba@suse.com>
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Link: https://patch.msgid.link/20251220-remove_wtype-limits-v3-2-24b170af700e@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>

show more ...

drm/pagemap: Add a drm_pagemap cache and shrinker

Pagemaps are costly to set up and tear down, and they consume a lot
of system memory for the struct pages. Ideally they should be
created only when

drm/pagemap: Add a drm_pagemap cache and shrinker

Pagemaps are costly to set up and tear down, and they consume a lot
of system memory for the struct pages. Ideally they should be
created only when needed.

Add a caching mechanism to allow doing just that: Create the drm_pagemaps
when needed for migration. Keep them around to avoid destruction and
re-creation latencies and destroy inactive/unused drm_pagemaps on memory
pressure using a shrinker.

Only add the helper functions. They will be hooked up to the xe driver
in the upcoming patch.

v2:
- Add lockdep checking for drm_pagemap_put(). (Matt Brost)
- Add a copyright notice. (Matt Brost)

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> # For merging through drm-xe.
Link: https://patch.msgid.link/20251219113320.183860-8-thomas.hellstrom@linux.intel.com

show more ...

Merge tag 'drm-next-2025-12-03' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
"There was a rather late merge of a new color pipeline feature, that
some userspace

Merge tag 'drm-next-2025-12-03' of https://gitlab.freedesktop.org/drm/kernel

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
...

show more ...

Merge tag 'kbuild-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild updates from Nicolas Schier:

- Enable -fms-extensions, allowing anonymous use of tagged struct

Merge tag 'kbuild-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild updates from Nicolas Schier:

- Enable -fms-extensions, allowing anonymous use of tagged struct or
union in struct/union (tag kbuild-ms-extensions-6.19). An exemplary
conversion patch is added here, too (btrfs).

[ Editor's note: the core of this actually came in early through a
shared branch and a few other trees - Linus ]

- Introduce architecture-specific CC_CAN_LINK and flags for userprogs

- Add new packaging target 'modules-cpio-pkg' for building a initramfs
cpio w/ kmods

- Handle included .c files in gen_compile_commands

- Minor kbuild changes:
- Use objtree for module signing key path, fixing oot kmod signing
- Improve documentation of KBUILD_BUILD_TIMESTAMP
- Reuse KBUILD_USERCFLAGS for UAPI, instead of defining twice
- Rename scripts/Makefile.extrawarn to Makefile.warn
- Drop obsolete types.h check from headers_check.pl
- Remove outdated config leak ignore entries

* tag 'kbuild-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kbuild: add target to build a cpio containing modules
initramfs: add gen_init_cpio to hostprogs unconditionally
kbuild: allow architectures to override CC_CAN_LINK
init: deduplicate cc-can-link.sh invocations
kbuild: don't enable CC_CAN_LINK if the dummy program generates warnings
scripts: headers_install.sh: Remove two outdated config leak ignore entries
scripts/clang-tools: Handle included .c files in gen_compile_commands
kbuild: uapi: Drop types.h check from headers_check.pl
kbuild: Rename Makefile.extrawarn to Makefile.warn
MAINTAINERS, .mailmap: Update mail address for Nicolas Schier
kbuild: uapi: reuse KBUILD_USERCFLAGS
kbuild: doc: improve KBUILD_BUILD_TIMESTAMP documentation
kbuild: Use objtree for module signing key path
btrfs: send: make use of -fms-extensions for defining struct fs_path

show more ...

Merge tag 'drm-misc-next-2025-12-01-1' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

Extra drm-misc-next for v6.19-rc1:

UAPI Changes:
- Add support for drm colorop pipeline.
- Add

Merge tag 'drm-misc-next-2025-12-01-1' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

Extra drm-misc-next for v6.19-rc1:

UAPI Changes:
- Add support for drm colorop pipeline.
- Add COLOR PIPELINE plane property.
- Add DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE.

Cross-subsystem Changes:
- Attempt to use higher order mappings in system heap allocator.
- Always taint kernel with sw-sync.

Core Changes:
- Small fixes to drm/gem.
- Support emergency restore to drm-client.
- Allocate and release fb_info in single place.
- Rework ttm pipelined eviction fence handling.

Driver Changes:
- Support the drm color pipeline in vkms, amdgfx.
- Add NVJPG driver for tegra.
- Assorted small fixes and updates to rockchip, bridge/dw-hdmi-qp,
panthor.
- Add ASL CS5263 DP-to-HDMI simple bridge.
- Add and improve support for G LD070WX3-SL01 MIPI DSI, Samsung LTL106AL0,
Samsung LTL106AL01, Raystar RFF500F-AWH-DNN, Winstar WF70A8SYJHLNGA,
Wanchanglong w552946aaa, Samsung SOFEF00, Lenovo X13s panel.
- Add support for it66122 to it66121.
- Support mali-G1 gpu in panthor.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/aa5cbd50-7676-4a59-bbed-e8428af86804@linux.intel.com

show more ...

drm/colorop: Introduce new drm_colorop mode object

This patches introduces a new drm_colorop mode object. This
object represents color transformations and can be used to
define color pipelines.

We

drm/colorop: Introduce new drm_colorop mode object

This patches introduces a new drm_colorop mode object. This
object represents color transformations and can be used to
define color pipelines.

We also introduce the drm_colorop_state here, as well as
various helpers and state tracking bits.

Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20251115000237.3561250-5-alex.hung@amd.com

show more ...

drm/client: Support emergency restore via sysrq for all clients

Move the sysrq functionality from DRM fbdev helpers to the DRM device
and in-kernel clients, so that it becomes available on all clien

drm/client: Support emergency restore via sysrq for all clients

Move the sysrq functionality from DRM fbdev helpers to the DRM device
and in-kernel clients, so that it becomes available on all clients.

DRM fbdev helpers support emergency restoration of the console output
via a special key combination. Press SysRq+v to replace the current
compositor with the kernel's output on the framebuffer console. This
allows users to see the log messages during system emergencies.

By moving the functionality from fbdev helpers to the DRM device, any
in-kernel client can serve as emergency output. This can be used to
bring up drm_log, for example.

Each DRM device registers itself to the list of possible sysrq handlers.
On receiving SysRq+v, the DRM core goes over all registered devices and
restores an in-kernel DRM client for each of them.

See Documentation/admin-guide/sysrq.rst on how to invoke SysRq. Switch
VTs to bring back the user-space compositor.

v2:
- declare placeholders as 'static inline' (kernel test robot)
- fix grammar in commit description

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20251110154616.539328-3-tzimmermann@suse.de

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Merge tag 'v6.18-rc6' into drm-next

Linux 6.18-rc6

Backmerge in order to merge msm next

Signed-off-by: Dave Airlie <airlied@redhat.com>

kbuild: Let kernel-doc.py use PYTHON3 override

It is possible to force a specific version of python to be used when
building the kernel by passing PYTHON3= on the make command line.
However kernel-d

kbuild: Let kernel-doc.py use PYTHON3 override

It is possible to force a specific version of python to be used when
building the kernel by passing PYTHON3= on the make command line.
However kernel-doc.py is currently called with python3 hard-coded and
thus ignores this setting.

Use $(PYTHON3) to run $(KERNELDOC) so that the desired version of
python is used.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://patch.msgid.link/20251107192933.2bfe9e57@endymion
Signed-off-by: Nathan Chancellor <nathan@kernel.org>

show more ...

kbuild: Rename Makefile.extrawarn to Makefile.warn

Since commit e88ca24319e4 ("kbuild: consolidate warning flags in
scripts/Makefile.extrawarn"), scripts/Makefile.extrawarn contains all
warnings for

kbuild: Rename Makefile.extrawarn to Makefile.warn

Since commit e88ca24319e4 ("kbuild: consolidate warning flags in
scripts/Makefile.extrawarn"), scripts/Makefile.extrawarn contains all
warnings for the main kernel build, not just warnings enabled by the
values for W=. Rename it to scripts/Makefile.warn to make it clearer
that this Makefile is where all Kbuild warning handling should exist.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20251023-rename-scripts-makefile-extrawarn-v1-1-8f7531542169@kernel.org
Signed-off-by: Nicolas Schier <nsc@kernel.org>

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Merge tag 'drm-misc-next-2025-10-02' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.19:

UAPI Changes:

Cross-subsystem Changes:
- fbcon cleanups.
- Make drive

Merge tag 'drm-misc-next-2025-10-02' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.19:

UAPI Changes:

Cross-subsystem Changes:
- fbcon cleanups.
- Make drivers depend on FB_TILEBLITTING instead of selecting it,
and hide FB_MODE_HELPERS.

Core Changes:
- More preparations for rust.
- Throttle dirty worker with vblank
- Use drm_for_each_bridge_in_chain_scoped in drm's bridge code and
assorted fixes.
- Ensure drm_client_modeset tests are enabled in UML.
- Rename ttm_bo_put to ttm_bo_fini, as a further step in removing the
TTM bo refcount.
- Add POST_LT_ADJ_REQ training sequence.
- Show list of removed but still allocated bridges.
- Add a simulated vblank interrupt for hardware without it,
and add some helpers to use them in vkms and hypervdrm.

Driver Changes:
- Assorted small fixes, cleanups and updates to host1x, tegra,
panthor, amdxdna, gud, vc4, ssd130x, ivpu, panfrost, panthor,
sysfb, bridge/sn65dsi86, solomon, ast, tidss.
- Convert drivers from using .round_rate() to .determine_rate()
- Add support for KD116N3730A07/A12, chromebook mt8189, JT101TM023,
LQ079L1SX01, raspberrypi 5" panels.
- Improve reclocking on tegra186+ with nouveau.
- Improve runtime pm in amdxdna.
- Add support for HTX_PAI in imx.
- Use a helper to calculate dumb buffer sizes in most drivers.

Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://lore.kernel.org/r/b412fb91-8545-466a-8102-d89c0f2758a7@linux.intel.com

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

Updating drm-misc-next to the state of v6.18-rc1.

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

drm/vblank: Add vblank timer

The vblank timer simulates a vblank interrupt for hardware without
support. Rate-limits the display update frequency.

DRM drivers for hardware without vblank support ap

drm/vblank: Add vblank timer

The vblank timer simulates a vblank interrupt for hardware without
support. Rate-limits the display update frequency.

DRM drivers for hardware without vblank support apply display updates
ASAP. A vblank event informs DRM clients of the completed update.
Userspace compositors immediately schedule the next update, which
creates significant load on virtualization outputs. Display updates
are usually fast on virtualization outputs, as their framebuffers are
in regular system memory and there's no hardware vblank interrupt to
throttle the update rate.

The vblank timer is a HR timer that signals the vblank in software.
It limits the update frequency of a DRM driver similar to a hardware
vblank interrupt. The timer is not synchronized to the actual vblank
interval of the display.

The code has been adopted from vkms, which added the funtionality
in commit 3a0709928b17 ("drm/vkms: Add vblank events simulated by
hrtimers").

The new implementation is part of the existing vblank support,
which sets up the timer automatically. Drivers only have to start
and cancel the vblank timer as part of enabling and disabling the
CRTC. The new vblank helper library provides callbacks for struct
drm_crtc_funcs.

The standard way for handling vblank is to call drm_crtc_handle_vblank().
Drivers that require additional processing, such as vkms, can init
handle_vblank_timeout in struct drm_crtc_helper_funcs to refer to
their timeout handler.

There's a possible deadlock between drm_crtc_handle_vblank() and
hrtimer_cancel(). [1] The implementation avoids to call hrtimer_cancel()
directly and instead signals to the timer function to not restart
itself.

v4:
- fix possible race condition between timeout and atomic commit (Michael)
v3:
- avoid deadlock when cancelling timer (Ville, Lyude)
v2:
- implement vblank timer entirely in vblank helpers
- downgrade overrun warning to debug
- fix docs

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Louis Chauvet <louis.chauvet@bootlin.com>
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/all/20250510094757.4174662-1-zengheng4@huawei.com/ # [1]
Link: https://lore.kernel.org/r/20250916083816.30275-2-tzimmermann@suse.de

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rust: drm: Introduce the Tyr driver for Arm Mali GPUs

Add a Rust driver for ARM Mali CSF-based GPUs. It is a port of Panthor
and therefore exposes Panthor's uAPI and name to userspace, and the
produ

rust: drm: Introduce the Tyr driver for Arm Mali GPUs

Add a Rust driver for ARM Mali CSF-based GPUs. It is a port of Panthor
and therefore exposes Panthor's uAPI and name to userspace, and the
product of a joint effort between Collabora, Arm and Google engineers.

The aim is to incrementally develop Tyr with the abstractions that are
currently available until it is consider to be in parity with Panthor
feature-wise.

The development of Tyr itself started in January, after a few failed
attempts of converting Panthor piecewise through a mix of Rust and C
code. There is a downstream branch that's much further ahead in terms of
capabilities than this initial patch.

The downstream code is capable of booting the MCU, doing sync VM_BINDS
through the work-in-progress GPUVM abstraction and also doing (trivial)
submits through Asahi's drm_scheduler and dma_fence abstractions. So
basically, most of what one would expect a modern GPU driver to do,
except for power management and some other very important adjacent
pieces. It is not at the point where submits can correctly deal with
dependencies, or at the point where it can rotate access to the GPU
hardware fairly through a software scheduler, but that is simply a
matter of writing more code.

This first patch, however, only implements a subset of the current
features available downstream, as the rest is not implementable without
pulling in even more abstractions. In particular, a lot of things depend
on properly mapping memory on a given VA range, which itself depends on
the GPUVM abstraction that is currently work-in-progress. For this
reason, we still cannot boot the MCU and thus, cannot do much for the
moment.

This constitutes a change in the overall strategy that we have been
using to develop Tyr so far. By submitting small parts of the driver
upstream iteratively, we aim to:

a) evolve together with Nova and rvkms, hopefully reducing regressions
due to upstream changes (that may break us because we were not there, in
the first place)

b) prove any work-in-progress abstractions by having them run on a real
driver and hardware and,

c) provide a reason to work on and review said abstractions by providing
a user, which would be tyr itself.

Despite its limited feature-set, we offer IGT tests. It is only tested
on the rk3588, so any other SoC is probably not going to work at all for
now.

The skeleton is basically taken from Nova and also
rust_platform_driver.rs.

Lastly, the name "Tyr" is inspired by Norse mythology, reflecting ARM's
tradition of naming their GPUs after Nordic mythological figures and
places.

Co-developed-by: Beata Michalska <beata.michalska@arm.com>
Signed-off-by: Beata Michalska <beata.michalska@arm.com>
Co-developed-by: Carsten Haitzler <carsten.haitzler@foss.arm.com>
Signed-off-by: Carsten Haitzler <carsten.haitzler@foss.arm.com>
Co-developed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://www.collabora.com/news-and-blog/news-and-events/introducing-tyr-a-new-rust-drm-driver.html
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Acked-by: Boris Brezillon <boris.brezillon@collabora.com>
[aliceryhl: minor Kconfig update on apply]
[aliceryhl: s/drm::device::/drm::/]
Link: https://lore.kernel.org/r/20250910-tyr-v3-1-dba3bc2ae623@collabora.com
Co-developed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>

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drm/gpusvm, drm/pagemap: Move migration functionality to drm_pagemap

The migration functionality and track-keeping of per-pagemap VRAM
mapped to the CPU mm is not per GPU_vm, but rather per pagemap.

drm/gpusvm, drm/pagemap: Move migration functionality to drm_pagemap

The migration functionality and track-keeping of per-pagemap VRAM
mapped to the CPU mm is not per GPU_vm, but rather per pagemap.
This is also reflected by the functions not needing the drm_gpusvm
structures. So move to drm_pagemap.

With this, drm_gpusvm shouldn't really access the page zone-device-data
since its meaning is internal to drm_pagemap. Currently it's used to
reject mapping ranges backed by multiple drm_pagemap allocations.
For now, make the zone-device-data a void pointer.

Alter the interface of drm_gpusvm_migrate_to_devmem() to ensure we don't
pass a gpusvm pointer.

Rename CONFIG_DRM_XE_DEVMEM_MIRROR to CONFIG_DRM_XE_PAGEMAP.

Matt is listed as author of this commit since he wrote most of the code,
and it makes sense to retain his git authorship.
Thomas mostly moved the code around.

v3:
- Kerneldoc fixes (CI)
- Don't update documentation about how the drm_pagemap
migration should be interpreted until upcoming
patches where the functionality is implemented.
(Matt Brost)
v4:
- More kerneldoc fixes around timeslice_ms
(Himal Ghimiray, Matt Brost)
v6:
- Fix an uninitialized pagemap pointer (CI)

Co-developed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250619134035.170086-2-thomas.hellstrom@linux.intel.com

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Merge tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
"As part of building up nova-core/nova-drm pieces we've brought in some
rust abstra

Merge tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
"As part of building up nova-core/nova-drm pieces we've brought in some
rust abstractions through this tree, aux bus being the main one, with
devres changes also in the driver-core tree. Along with the drm core
abstractions and enough nova-core/nova-drm to use them. This is still
all stub work under construction, to build the nova driver upstream.

The other big NVIDIA related one is nouveau adds support for
Hopper/Blackwell GPUs, this required a new GSP firmware update to
570.144, and a bunch of rework in order to support multiple fw
interfaces.

There is also the introduction of an asahi uapi header file as a
precursor to getting the real driver in later, but to unblock
userspace mesa packages while the driver is trapped behind rust
enablement.

Otherwise it's the usual mixture of stuff all over, amdgpu, i915/xe,
and msm being the main ones, and some changes to vsprintf.

new drivers:
- bring in the asahi uapi header standalone
- nova-drm: stub driver

rust dependencies (for nova-core):
- auxiliary
- bus abstractions
- driver registration
- sample driver
- devres changes from driver-core
- revocable changes

core:
- add Apple fourcc modifiers
- add virtio capset definitions
- extend EXPORT_SYNC_FILE for timeline syncobjs
- convert to devm_platform_ioremap_resource
- refactor shmem helper page pinning
- DP powerup/down link helpers
- extended %p4cc in vsprintf.c to support fourcc prints
- change vsprintf %p4cn to %p4chR, remove %p4cn
- Add drm_file_err function
- IN_FORMATS_ASYNC property
- move sitronix from tiny to their own subdir

rust:
- add drm core infrastructure rust abstractions
(device/driver, ioctl, file, gem)

dma-buf:
- adjust sg handling to not cache map on attach
- allow setting dma-device for import
- Add a helper to sort and deduplicate dma_fence arrays

docs:
- updated drm scheduler docs
- fbdev todo update
- fb rendering
- actual brightness

ttm:
- fix delayed destroy resv object

bridge:
- add kunit tests
- convert tc358775 to atomic
- convert drivers to devm_drm_bridge_alloc
- convert rk3066_hdmi to bridge driver

scheduler:
- add kunit tests

panel:
- refcount panels to improve lifetime handling
- Powertip PH128800T004-ZZA01
- NLT NL13676BC25-03F, Tianma TM070JDHG34-00
- Himax HX8279/HX8279-D DDIC
- Visionox G2647FB105
- Sitronix ST7571
- ZOTAC rotation quirk

vkms:
- allow attaching more displays

i915:
- xe3lpd display updates
- vrr refactor
- intel_display struct conversions
- xe2hpd memory type identification
- add link rate/count to i915_display_info
- cleanup VGA plane handling
- refactor HDCP GSC
- fix SLPC wait boosting reference counting
- add 20ms delay to engine reset
- fix fence release on early probe errors

xe:
- SRIOV updates
- BMG PCI ID update
- support separate firmware for each GT
- SVM fix, prelim SVM multi-device work
- export fan speed
- temp disable d3cold on BMG
- backup VRAM in PM notifier instead of suspend/freeze
- update xe_ttm_access_memory to use GPU for non-visible access
- fix guc_info debugfs for VFs
- use copy_from_user instead of __copy_from_user
- append PCIe gen5 limitations to xe_firmware document

amdgpu:
- DSC cleanup
- DC Scaling updates
- Fused I2C-over-AUX updates
- DMUB updates
- Use drm_file_err in amdgpu
- Enforce isolation updates
- Use new dma_fence helpers
- USERQ fixes
- Documentation updates
- SR-IOV updates
- RAS updates
- PSP 12 cleanups
- GC 9.5 updates
- SMU 13.x updates
- VCN / JPEG SR-IOV updates

amdkfd:
- Update error messages for SDMA
- Userptr updates
- XNACK fixes

radeon:
- CIK doorbell cleanup

nouveau:
- add support for NVIDIA r570 GSP firmware
- enable Hopper/Blackwell support

nova-core:
- fix task list
- register definition infrastructure
- move firmware into own rust module
- register auxiliary device for nova-drm

nova-drm:
- initial driver skeleton

msm:
- GPU:
- ACD (adaptive clock distribution) for X1-85
- drop fictional address_space_size
- improve GMU HFI response time out robustness
- fix crash when throttling during boot
- DPU:
- use single CTL path for flushing on DPU 5.x+
- improve SSPP allocation code for better sharing
- Enabled SmartDMA on SM8150, SC8180X, SC8280XP, SM8550
- Added SAR2130P support
- Disabled DSC support on MSM8937, MSM8917, MSM8953, SDM660
- DP:
- switch to new audio helpers
- better LTTPR handling
- DSI:
- Added support for SA8775P
- Added SAR2130P support
- HDMI:
- Switched to use new helpers for ACR data
- Fixed old standing issue of HPD not working in some cases

amdxdna:
- add dma-buf support
- allow empty command submits

renesas:
- add dma-buf support
- add zpos, alpha, blend support

panthor:
- fail properly for NO_MMAP bos
- add SET_LABEL ioctl
- debugfs BO dumping support

imagination:
- update DT bindings
- support TI AM68 GPU

hibmc:
- improve interrupt handling and HPD support

virtio:
- add panic handler support

rockchip:
- add RK3588 support
- add DP AUX bus panel support

ivpu:
- add heartbeat based hangcheck

mediatek:
- prepares support for MT8195/99 HDMIv2/DDCv2

anx7625:
- improve HPD

tegra:
- speed up firmware loading

* tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel: (1627 commits)
drm/nouveau/tegra: Fix error pointer vs NULL return in nvkm_device_tegra_resource_addr()
drm/xe: Default auto_link_downgrade status to false
drm/xe/guc: Make creation of SLPC debugfs files conditional
drm/i915/display: Add check for alloc_ordered_workqueue() and alloc_workqueue()
drm/i915/dp_mst: Work around Thunderbolt sink disconnect after SINK_COUNT_ESI read
drm/i915/ptl: Use everywhere the correct DDI port clock select mask
drm/nouveau/kms: add support for GB20x
drm/dp: add option to disable zero sized address only transactions.
drm/nouveau: add support for GB20x
drm/nouveau/gsp: add hal for fifo.chan.doorbell_handle
drm/nouveau: add support for GB10x
drm/nouveau/gf100-: track chan progress with non-WFI semaphore release
drm/nouveau/nv50-: separate CHANNEL_GPFIFO handling out from CHANNEL_DMA
drm/nouveau: add helper functions for allocating pinned/cpu-mapped bos
drm/nouveau: add support for GH100
drm/nouveau: improve handling of 64-bit BARs
drm/nouveau/gv100-: switch to volta semaphore methods
drm/nouveau/gsp: support deeper page tables in COPY_SERVER_RESERVED_PDES
drm/nouveau/gsp: init client VMMs with NV0080_CTRL_DMA_SET_PAGE_DIRECTORY
drm/nouveau/gsp: fetch level shift and PDE from BAR2 VMM
...

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Merge tag 'nova-next-v6.16-2025-05-20' of https://gitlab.freedesktop.org/drm/nova into drm-next

Nova changes for v6.16

auxiliary:
- bus abstractions
- implementation for driver registration
-

Merge tag 'nova-next-v6.16-2025-05-20' of https://gitlab.freedesktop.org/drm/nova into drm-next

Nova changes for v6.16

auxiliary:
- bus abstractions
- implementation for driver registration
- add sample driver

drm:
- implement __drm_dev_alloc()
- DRM core infrastructure Rust abstractions
- device, driver and registration
- DRM IOCTL
- DRM File
- GEM object
- IntoGEMObject rework
- generically implement AlwaysRefCounted through IntoGEMObject
- refactor unsound from_gem_obj() into as_ref()
- refactor into_gem_obj() into as_raw()

driver-core:
- merge topic/device-context-2025-04-17 from driver-core tree
- implement Devres::access()
- fix: doctest build under `!CONFIG_PCI`
- accessor for Device::parent()
- fix: conditionally expect `dead_code` for `parent()`
- impl TryFrom<&Device> bus devices (PCI, platform)

nova-core:
- remove completed Vec extentions from task list
- register auxiliary device for nova-drm
- derive useful traits for Chipset
- add missing GA100 chipset
- take &Device<Bound> in Gpu::new()
- infrastructure to generate register definitions
- fix register layout of NV_PMC_BOOT_0
- move Firmware into own (Rust) module
- fix: select AUXILIARY_BUS

nova-drm:
- initial driver skeleton (depends on drm and auxiliary bus
abstractions)
- fix: select AUXILIARY_BUS

Rust (dependencies):
- implement Opaque::zeroed()
- implement Revocable::try_access_with()
- implement Revocable::access()

From: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/aCxAf3RqQAXLDhAj@cassiopeiae

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drm: nova-drm: add initial driver skeleton

Add the initial nova-drm driver skeleton.

nova-drm is connected to nova-core through the auxiliary bus and
implements the DRM parts of the nova driver sta

drm: nova-drm: add initial driver skeleton

Add the initial nova-drm driver skeleton.

nova-drm is connected to nova-core through the auxiliary bus and
implements the DRM parts of the nova driver stack.

For now, it implements the fundamental DRM abstractions, i.e. creates a
DRM device and registers it, exposing a three sample IOCTLs.

DRM_IOCTL_NOVA_GETPARAM
- provides the PCI bar size from the bar that maps the GPUs VRAM
from nova-core

DRM_IOCTL_NOVA_GEM_CREATE
- creates a new dummy DRM GEM object and returns a handle

DRM_IOCTL_NOVA_GEM_INFO
- provides metadata for the DRM GEM object behind a given handle

I implemented a small userspace test suite [1] that utilizes this
interface.

Link: https://gitlab.freedesktop.org/dakr/drm-test [1]
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Dave Airlie <airlied@redhat.com>
Link: https://lore.kernel.org/r/20250424160452.8070-3-dakr@kernel.org
[ Kconfig: depend on DRM=y rather than just DRM. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

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drm/sitronix: move tiny Sitronix drivers to their own subdir

We start to have support many Sitronix displays in the tiny directory,
and we expect more to come.

Move them to their own subdirectory.

drm/sitronix: move tiny Sitronix drivers to their own subdir

We start to have support many Sitronix displays in the tiny directory,
and we expect more to come.

Move them to their own subdirectory.

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Suggested-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250512-sitronix-v3-1-bbf6cc413698@gmail.com
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>

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scripts/kernel-doc.py: don't create *.pyc files

As reported by Andy, kernel-doc.py is creating a __pycache__
directory at build time.

Disable creation of __pycache__ for the libraries used by
kerne

scripts/kernel-doc.py: don't create *.pyc files

As reported by Andy, kernel-doc.py is creating a __pycache__
directory at build time.

Disable creation of __pycache__ for the libraries used by
kernel-doc.py, when excecuted via the build system or via
scripts/find-unused-docs.sh.

Reported-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Closes: https://lore.kernel.org/linux-doc/Z_zYXAJcTD-c3xTe@black.fi.intel.com/
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <158b962ed7cd104f7bbfe69f499ec1cc378864db.1745453655.git.mchehab+huawei@kernel.org>

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

Backmerging to get v6.15-rc1 into drm-misc-next. Also fixes a
build issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.

Signed-off-by: Thomas Zimmermann <tzimmerm

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

Backmerging to get v6.15-rc1 into drm-misc-next. Also fixes a
build issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.

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

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drm: Move sysfb drivers into separate subdirectory

The ofdrm and simpledrm drivers are special as they operate on
externally provided framebuffers. Move them into their own sub-
directory. Will let

drm: Move sysfb drivers into separate subdirectory

The ofdrm and simpledrm drivers are special as they operate on
externally provided framebuffers. Move them into their own sub-
directory. Will let them share common code.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250401094056.32904-5-tzimmermann@suse.de

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