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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
"Here is the big set of driver core and debugfs updates for 6.14-rc1.
Included in here is a bunch of driver core, PCI, OF, and platform rust
bindings (all acked by the different subsystem maintainers), hence the
merge conflict with the rust tree, and some driver core api updates to
mark things as const, which will also require some fixups due to new
stuff coming in through other trees in this merge window.
There are also a bunch of debugfs updates from Al, and there is at
least one user that does have a regression with these, but Al is
working on tracking down the fix for it. In my use (and everyone
else's linux-next use), it does not seem like a big issue at the
moment.
Here's a short list of the things in here:
- driver core rust bindings for PCI, platform, OF, and some i/o
functions.
We are almost at the "write a real driver in rust" stage now,
depending on what you want to do.
- misc device rust bindings and a sample driver to show how to use
them
- debugfs cleanups in the fs as well as the users of the fs api for
places where drivers got it wrong or were unnecessarily doing
things in complex ways.
- driver core const work, making more of the api take const * for
different parameters to make the rust bindings easier overall.
- other small fixes and updates
All of these have been in linux-next with all of the aforementioned
merge conflicts, and the one debugfs issue, which looks to be resolved
"soon""
* tag 'driver-core-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (95 commits)
rust: device: Use as_char_ptr() to avoid explicit cast
rust: device: Replace CString with CStr in property_present()
devcoredump: Constify 'struct bin_attribute'
devcoredump: Define 'struct bin_attribute' through macro
rust: device: Add property_present()
saner replacement for debugfs_rename()
orangefs-debugfs: don't mess with ->d_name
octeontx2: don't mess with ->d_parent or ->d_parent->d_name
arm_scmi: don't mess with ->d_parent->d_name
slub: don't mess with ->d_name
sof-client-ipc-flood-test: don't mess with ->d_name
qat: don't mess with ->d_name
xhci: don't mess with ->d_iname
mtu3: don't mess wiht ->d_iname
greybus/camera - stop messing with ->d_iname
mediatek: stop messing with ->d_iname
netdevsim: don't embed file_operations into your structs
b43legacy: make use of debugfs_get_aux()
b43: stop embedding struct file_operations into their objects
carl9170: stop embedding file_operations into their objects
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Char/Misc/IIO driver updates from Greg KH:
"Here is the "big" set of char/misc/iio and other smaller driver
subsystem updates for 6.14-rc1. Loads of different things in here this
development cycle, highlights are:
- ntsync "driver" to handle Windows locking types enabling Wine to
work much better on many workloads (i.e. games). The driver
framework was in 6.13, but now it's enabled and fully working
properly. Should make many SteamOS users happy. Even comes with
tests!
- Large IIO driver updates and bugfixes
- FPGA driver updates
- Coresight driver updates
- MHI driver updates
- PPS driver updatesa
- const bin_attribute reworking for many drivers
- binder driver updates
- smaller driver updates and fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits)
ntsync: Fix reference leaks in the remaining create ioctls.
spmi: hisi-spmi-controller: Drop duplicated OF node assignment in spmi_controller_probe()
spmi: Set fwnode for spmi devices
ntsync: fix a file reference leak in drivers/misc/ntsync.c
scripts/tags.sh: Don't tag usages of DECLARE_BITMAP
dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs
dt-bindings: interconnect: OSM L3: Document sm8650 OSM L3 compatible
dt-bindings: interconnect: qcom-bwmon: Document QCS615 bwmon compatibles
interconnect: sm8750: Add missing const to static qcom_icc_desc
memstick: core: fix kernel-doc notation
intel_th: core: fix kernel-doc warnings
binder: log transaction code on failure
iio: dac: ad3552r-hs: clear reset status flag
iio: dac: ad3552r-common: fix ad3541/2r ranges
iio: chemical: bme680: Fix uninitialized variable in __bme680_read_raw()
misc: fastrpc: Fix copy buffer page size
misc: fastrpc: Fix registered buffer page address
misc: fastrpc: Deregister device nodes properly in error scenarios
nvmem: core: improve range check for nvmem_cell_write()
nvmem: qcom-spmi-sdam: Set size in struct nvmem_config
...
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen:
"acer-wmi:
- Add support for PH14-51, PH16-72, and Nitro AN515-58
- Add proper hwmon support
- Improve error handling when reading "gaming system info"
- Replace direct EC reads for the current platform profile with WMI
calls to handle EC address variations
- Replace custom platform_profile cycling with the generic one
ACPI:
- platform_profile: Major refactoring and improvements
- Support registering multiple platform_profile handlers concurrently
to avoid the need to quirk which handler takes precedence
- Support reporting "custom" profile for cases where the current
profile is ambiguous or when settings tweaks are done outside the
pre-defined profile
- Abstract and layer platform_profile API better using the class_dev
and drvdata
- Various minor improvements
- Add Documentation and kerneldoc
amd/hsmp:
- Add support for HSMP protocol v7
amd/pmc:
- Support AMD 1Ah family 70h
- Support STB with Ryzen desktop SoCs
amd/pmf:
- Support Custom BIOS inputs for PMF TA
- Support passing SRA sensor data from AMD SFH (HID) to PMF TA
dell-smo8800:
- Move SMO88xx quirk away from the generic i2c-i801 driver
- Add accelerometer support for Dell Latitude E6330/E6430 and XPS
9550
- Support probing accelerometer for models yet to be listed in the
DMI mapping table because ACPI lacks i2c-address for the
accelerometer (behind a module parameter because probing might be
dangerous)
HID:
- amd_sfh: Add support for exporting SRA sensor data
hp-wmi:
- Add fan and thermal support for Victus 16-s1000
input:
- Add key for phone linking
- i8042: Add context for the i8042 filter to enable cleaning up the
filter related global variables from pdx86 drivers
lenovo-wmi-camera:
- Use SW_CAMERA_LENS_COVER instead of KEY_CAMERA_ACCESS
mellanox mlxbf-pmc:
- Add support for monitoring cycle count
- Add Documentation
thinkpad_acpi:
- Add support for phone link key
tools/power/x86/intel-speed-select:
- Fix Turbo Ratio Limit restore
x86-android-tables:
- Add support for Vexia EDU ATLA 10 Bluetooth and EC battery driver
And miscellaneous cleanups / refactoring / improvements"
* tag 'platform-drivers-x86-v6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (133 commits)
platform/x86: acer-wmi: Fix initialization of last_non_turbo_profile
platform/x86: acer-wmi: Ignore AC events
platform/mellanox: mlxreg-io: use sysfs_emit() instead of sprintf()
platform/mellanox: mlxreg-hotplug: use sysfs_emit() instead of sprintf()
platform/mellanox: mlxbf-bootctl: use sysfs_emit() instead of sprintf()
platform/x86: hp-wmi: Add fan and thermal profile support for Victus 16-s1000
ACPI: platform_profile: Add a prefix to log messages
ACPI: platform_profile: Add documentation
ACPI: platform_profile: Clean platform_profile_handler
ACPI: platform_profile: Move platform_profile_handler
ACPI: platform_profile: Remove platform_profile_handler from exported symbols
platform/x86: thinkpad_acpi: Use devm_platform_profile_register()
platform/x86: inspur_platform_profile: Use devm_platform_profile_register()
platform/x86: hp-wmi: Use devm_platform_profile_register()
platform/x86: ideapad-laptop: Use devm_platform_profile_register()
platform/x86: dell-pc: Use devm_platform_profile_register()
platform/x86: asus-wmi: Use devm_platform_profile_register()
platform/x86: amd: pmf: sps: Use devm_platform_profile_register()
platform/x86: acer-wmi: Use devm_platform_profile_register()
platform/surface: surface_platform_profile: Use devm_platform_profile_register()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull AT_EXECVE_CHECK from Kees Cook:
- Implement AT_EXECVE_CHECK flag to execveat(2) (Mickaël Salaün)
- Implement EXEC_RESTRICT_FILE and EXEC_DENY_INTERACTIVE securebits
(Mickaël Salaün)
- Add selftests and samples for AT_EXECVE_CHECK (Mickaël Salaün)
* tag 'AT_EXECVE_CHECK-v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
ima: instantiate the bprm_creds_for_exec() hook
samples/check-exec: Add an enlighten "inc" interpreter and 28 tests
selftests: ktap_helpers: Fix uninitialized variable
samples/check-exec: Add set-exec
selftests/landlock: Add tests for execveat + AT_EXECVE_CHECK
selftests/exec: Add 32 tests for AT_EXECVE_CHECK and exec securebits
security: Add EXEC_RESTRICT_FILE and EXEC_DENY_INTERACTIVE securebits
exec: Add a new AT_EXECVE_CHECK flag to execveat(2)
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Commit 86b525bed275 ("drivers pps: add PPS generators support") adds a file
entry in MAINTAINERS and a reference in the ioctl-number documentation
referring to the file pps-gen.h, whereas the file added in this commit is
named pps_gen.h.
Adjust the two references to the actual name of the uapi header file.
While at it, put the entry in MAINTAINERS at the right place for
alphabetical ordering.
Fixes: 86b525bed275 ("drivers pps: add PPS generators support")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Link: https://lore.kernel.org/r/20250110105000.56228-1-lukas.bulwahn@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Move python code to a separate directory so it can be
packaged as a python module. Updates existing references
in selftests and docs.
Also rename ynl-gen-[c|rst] to ynl_gen_[c|rst], avoid
dashes as these prevent easy imports for entrypoints.
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/a4151bad0e6984e7164d395125ce87fd2e048bf1.1736343575.git.jstancek@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add an overall explanation of the driver architecture, and complete and precise
specification for its intended behaviour.
Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com>
Link: https://lore.kernel.org/r/20241213193511.457338-30-zfigura@codeweavers.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Sometimes one needs to be able not only to catch PPS signals but to
produce them also. For example, running a distributed simulation,
which requires computers' clock to be synchronized very tightly.
This patch adds PPS generators class in order to have a well-defined
interface for these devices.
Signed-off-by: Rodolfo Giometti <giometti@enneenne.com>
Link: https://lore.kernel.org/r/20241108073115.759039-2-giometti@enneenne.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The new SECBIT_EXEC_RESTRICT_FILE, SECBIT_EXEC_DENY_INTERACTIVE, and
their *_LOCKED counterparts are designed to be set by processes setting
up an execution environment, such as a user session, a container, or a
security sandbox. Unlike other securebits, these ones can be set by
unprivileged processes. Like seccomp filters or Landlock domains, the
securebits are inherited across processes.
When SECBIT_EXEC_RESTRICT_FILE is set, programs interpreting code should
control executable resources according to execveat(2) + AT_EXECVE_CHECK
(see previous commit).
When SECBIT_EXEC_DENY_INTERACTIVE is set, a process should deny
execution of user interactive commands (which excludes executable
regular files).
Being able to configure each of these securebits enables system
administrators or owner of image containers to gradually validate the
related changes and to identify potential issues (e.g. with interpreter
or audit logs).
It should be noted that unlike other security bits, the
SECBIT_EXEC_RESTRICT_FILE and SECBIT_EXEC_DENY_INTERACTIVE bits are
dedicated to user space willing to restrict itself. Because of that,
they only make sense in the context of a trusted environment (e.g.
sandbox, container, user session, full system) where the process
changing its behavior (according to these bits) and all its parent
processes are trusted. Otherwise, any parent process could just execute
its own malicious code (interpreting a script or not), or even enforce a
seccomp filter to mask these bits.
Such a secure environment can be achieved with an appropriate access
control (e.g. mount's noexec option, file access rights, LSM policy) and
an enlighten ld.so checking that libraries are allowed for execution
e.g., to protect against illegitimate use of LD_PRELOAD.
Ptrace restrictions according to these securebits would not make sense
because of the processes' trust assumption.
Scripts may need some changes to deal with untrusted data (e.g. stdin,
environment variables), but that is outside the scope of the kernel.
See chromeOS's documentation about script execution control and the
related threat model:
https://www.chromium.org/chromium-os/developer-library/guides/security/noexec-shell-scripts/
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Paul Moore <paul@paul-moore.com>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Reviewed-by: Jeff Xu <jeffxu@chromium.org>
Tested-by: Jeff Xu <jeffxu@chromium.org>
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Link: https://lore.kernel.org/r/20241212174223.389435-3-mic@digikod.net
Signed-off-by: Kees Cook <kees@kernel.org>
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Add a new AT_EXECVE_CHECK flag to execveat(2) to check if a file would
be allowed for execution. The main use case is for script interpreters
and dynamic linkers to check execution permission according to the
kernel's security policy. Another use case is to add context to access
logs e.g., which script (instead of interpreter) accessed a file. As
any executable code, scripts could also use this check [1].
This is different from faccessat(2) + X_OK which only checks a subset of
access rights (i.e. inode permission and mount options for regular
files), but not the full context (e.g. all LSM access checks). The main
use case for access(2) is for SUID processes to (partially) check access
on behalf of their caller. The main use case for execveat(2) +
AT_EXECVE_CHECK is to check if a script execution would be allowed,
according to all the different restrictions in place. Because the use
of AT_EXECVE_CHECK follows the exact kernel semantic as for a real
execution, user space gets the same error codes.
An interesting point of using execveat(2) instead of openat2(2) is that
it decouples the check from the enforcement. Indeed, the security check
can be logged (e.g. with audit) without blocking an execution
environment not yet ready to enforce a strict security policy.
LSMs can control or log execution requests with
security_bprm_creds_for_exec(). However, to enforce a consistent and
complete access control (e.g. on binary's dependencies) LSMs should
restrict file executability, or measure executed files, with
security_file_open() by checking file->f_flags & __FMODE_EXEC.
Because AT_EXECVE_CHECK is dedicated to user space interpreters, it
doesn't make sense for the kernel to parse the checked files, look for
interpreters known to the kernel (e.g. ELF, shebang), and return ENOEXEC
if the format is unknown. Because of that, security_bprm_check() is
never called when AT_EXECVE_CHECK is used.
It should be noted that script interpreters cannot directly use
execveat(2) (without this new AT_EXECVE_CHECK flag) because this could
lead to unexpected behaviors e.g., `python script.sh` could lead to Bash
being executed to interpret the script. Unlike the kernel, script
interpreters may just interpret the shebang as a simple comment, which
should not change for backward compatibility reasons.
Because scripts or libraries files might not currently have the
executable permission set, or because we might want specific users to be
allowed to run arbitrary scripts, the following patch provides a dynamic
configuration mechanism with the SECBIT_EXEC_RESTRICT_FILE and
SECBIT_EXEC_DENY_INTERACTIVE securebits.
This is a redesign of the CLIP OS 4's O_MAYEXEC:
https://github.com/clipos-archive/src_platform_clip-patches/blob/f5cb330d6b684752e403b4e41b39f7004d88e561/1901_open_mayexec.patch
This patch has been used for more than a decade with customized script
interpreters. Some examples can be found here:
https://github.com/clipos-archive/clipos4_portage-overlay/search?q=O_MAYEXEC
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Reviewed-by: Jeff Xu <jeffxu@chromium.org>
Tested-by: Jeff Xu <jeffxu@chromium.org>
Link: https://docs.python.org/3/library/io.html#io.open_code [1]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Link: https://lore.kernel.org/r/20241212174223.389435-2-mic@digikod.net
Signed-off-by: Kees Cook <kees@kernel.org>
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drivers
32 IDs should be plenty (at yet, not too greedy) since a lot of sample
drivers will use their own subsystem allocations.
Sample drivers predominately reside in <KERNEL_ROOT>/samples, but there
should be no issue with in-place example drivers using them.
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20241213134715.601415-2-lee@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The class interface allows changing multiple platform profiles on a system
to different values. The semantics of it are similar to the legacy
interface.
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20241206031918.1537-23-mario.limonciello@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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This is similar to existing attr-cnt-name in the attributes
to allow changing the name of the 'count' enum entry.
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20241204155549.641348-2-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull drm updates from Dave Airlie:
"There's a lot of rework, the panic helper support is being added to
more drivers, v3d gets support for HW superpages, scheduler
documentation, drm client and video aperture reworks, some new
MAINTAINERS added, amdgpu has the usual lots of IP refactors, Intel
has some Pantherlake enablement and xe is getting some SRIOV bits, but
just lots of stuff everywhere.
core:
- split DSC helpers from DP helpers
- clang build fixes for drm/mm test
- drop simple pipeline support for gem vram
- document submission error signaling
- move drm_rect to drm core module from kms helper
- add default client setup to most drivers
- move to video aperture helpers instead of drm ones
tests:
- new framebuffer tests
ttm:
- remove swapped and pinned BOs from TTM lru
panic:
- fix uninit spinlock
- add ABGR2101010 support
bridge:
- add TI TDP158 support
- use standard PM OPS
dma-fence:
- use read_trylock instead of read_lock to help lockdep
scheduler:
- add errno to sched start to report different errors
- add locking to drm_sched_entity_modify_sched
- improve documentation
xe:
- add drm_line_printer
- lots of refactoring
- Enable Xe2 + PES disaggregation
- add new ARL PCI ID
- SRIOV development work
- fix exec unnecessary implicit fence
- define and parse OA sync props
- forcewake refactoring
i915:
- Enable BMG/LNL ultra joiner
- Enable 10bpx + CCS scanout on ICL+, fp16/CCS on TGL+
- use DSB for plane/color mgmt
- Arrow lake PCI IDs
- lots of i915/xe display refactoring
- enable PXP GuC autoteardown
- Pantherlake (PTL) Xe3 LPD display enablement
- Allow fastset HDR infoframe changes
- write DP source OUI for non-eDP sinks
- share PCI IDs between i915 and xe
amdgpu:
- SDMA queue reset support
- SMU 13.0.6, JPEG 4.0.3 updates
- Initial runtime repartitioning support
- rework IP structs for multiple IP instances
- Fetch EDID from _DDC if available
- SMU13 zero rpm user control
- lots of fixes/cleanups
amdkfd:
- Increase event FIFO size
- add topology cap flag for per queue reset
msm:
- DPU:
- SA8775P support
- (disabled by default) MSM8917, MSM8937, MSM8953 and MSM8996 support
- Enable large framebuffer support
- Drop MSM8998 and SDM845
- DP:
- SA8775P support
- GPU:
- a7xx preemption support
- Adreno A663 support
ast:
- warn about unsupported TX chips
ivpu:
- add coredump
- add pantherlake support
rockchip:
- 4K@60Hz display enablement
- generate pll programming tables
panthor:
- add timestamp query API
- add realtime group priority
- add fdinfo support
etnaviv:
- improve handling of DMA address limits
- improve GPU hangcheck
exynos:
- Decon Exynos7870 support
mediatek:
- add OF graph support
omap:
- locking fixes
bochs:
- convert to gem/shmem from simpledrm
v3d:
- support big/super pages
- add gemfs
vc4:
- BCM2712 support refactoring
- add YUV444 format support
udmabuf:
- folio related fixes
nouveau:
- add panic support on nv50+"
* tag 'drm-next-2024-11-21' of https://gitlab.freedesktop.org/drm/kernel: (1583 commits)
drm/xe/guc: Fix dereference before NULL check
drm/amd: Fix initialization mistake for NBIO 7.7.0
Revert "drm/amd/display: parse umc_info or vram_info based on ASIC"
drm/amd/display: Fix failure to read vram info due to static BP_RESULT
drm/amdgpu: enable GTT fallback handling for dGPUs only
drm/amd/amdgpu: limit single process inside MES
drm/fourcc: add AMD_FMT_MOD_TILE_GFX9_4K_D_X
drm/amdgpu/mes12: correct kiq unmap latency
drm/amdgpu: Support vcn and jpeg error info parsing
drm/amd : Update MES API header file for v11 & v12
drm/amd/amdkfd: add/remove kfd queues on start/stop KFD scheduling
drm/amdkfd: change kfd process kref count at creation
drm/amdgpu: Cleanup shift coding style
drm/amd/amdgpu: Increase MES log buffer to dump mes scratch data
drm/amdgpu: Implement virt req_ras_err_count
drm/amdgpu: VF Query RAS Caps from Host if supported
drm/amdgpu: Add msg handlers for SRIOV RAS Telemetry
drm/amdgpu: Update SRIOV Exchange Headers for RAS Telemetry Support
drm/amd/display: 3.2.309
drm/amd/display: Adjust VSDB parser for replay feature
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
"Several new features and uAPI for iommufd:
- IOMMU_IOAS_MAP_FILE allows passing in a file descriptor as the
backing memory for an iommu mapping. To date VFIO/iommufd have used
VMA's and pin_user_pages(), this now allows using memfds and
memfd_pin_folios(). Notably this creates a pure folio path from the
memfd to the iommu page table where memory is never broken down to
PAGE_SIZE.
- IOMMU_IOAS_CHANGE_PROCESS moves the pinned page accounting between
two processes. Combined with the above this allows iommufd to
support a VMM re-start using exec() where something like qemu would
exec() a new version of itself and fd pass the memfds/iommufd/etc
to the new process. The memfd allows DMA access to the memory to
continue while the new process is getting setup, and the
CHANGE_PROCESS updates all the accounting.
- Support for fault reporting to userspace on non-PRI HW, such as ARM
stall-mode embedded devices.
- IOMMU_VIOMMU_ALLOC introduces the concept of a HW/driver backed
virtual iommu. This will be used by VMMs to access hardware
features that are contained with in a VM. The first use is to
inform the kernel of the virtual SID to physical SID mapping when
issuing SID based invalidation on ARM. Further uses will tie HW
features that are directly accessed by the VM, such as invalidation
queue assignment and others.
- IOMMU_VDEVICE_ALLOC informs the kernel about the mapping of virtual
device to physical device within a VIOMMU. Minimially this is used
to translate VM issued cache invalidation commands from virtual to
physical device IDs.
- Enhancements to IOMMU_HWPT_INVALIDATE and IOMMU_HWPT_ALLOC to work
with the VIOMMU
- ARM SMMuv3 support for nested translation. Using the VIOMMU and
VDEVICE the driver can model this HW's behavior for nested
translation. This includes a shared branch from Will"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: (51 commits)
iommu/arm-smmu-v3: Import IOMMUFD module namespace
iommufd: IOMMU_IOAS_CHANGE_PROCESS selftest
iommufd: Add IOMMU_IOAS_CHANGE_PROCESS
iommufd: Lock all IOAS objects
iommufd: Export do_update_pinned
iommu/arm-smmu-v3: Support IOMMU_HWPT_INVALIDATE using a VIOMMU object
iommu/arm-smmu-v3: Allow ATS for IOMMU_DOMAIN_NESTED
iommu/arm-smmu-v3: Use S2FWB for NESTED domains
iommu/arm-smmu-v3: Support IOMMU_DOMAIN_NESTED
iommu/arm-smmu-v3: Support IOMMU_VIOMMU_ALLOC
Documentation: userspace-api: iommufd: Update vDEVICE
iommufd/selftest: Add vIOMMU coverage for IOMMU_HWPT_INVALIDATE ioctl
iommufd/selftest: Add IOMMU_TEST_OP_DEV_CHECK_CACHE test command
iommufd/selftest: Add mock_viommu_cache_invalidate
iommufd/viommu: Add iommufd_viommu_find_dev helper
iommu: Add iommu_copy_struct_from_full_user_array helper
iommufd: Allow hwpt_id to carry viommu_id for IOMMU_HWPT_INVALIDATE
iommu/viommu: Add cache_invalidate to iommufd_viommu_ops
iommufd/selftest: Add IOMMU_VDEVICE_ALLOC test coverage
iommufd/viommu: Add IOMMUFD_OBJ_VDEVICE and IOMMU_VDEVICE_ALLOC ioctl
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull reiserfs removal from Jan Kara:
"The deprecation period of reiserfs is ending at the end of this year
so it is time to remove it"
* tag 'reiserfs_delete' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
reiserfs: The last commit
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- removal of the old omap4iss media driver
- mantis: remove orphan mantis_core.h
- add support for Raspberypi CFE
- uvc driver got a co-maintainer
- main media tree moved to git://linuxtv.org/media.git
- lots of driver cleanups, updates and fixes
* tag 'media/v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (233 commits)
docs: media: update location of the media patches
MAINTAINERS: update location of media main tree
media: MAINTAINERS: Add Hans de Goede as USB VIDEO CLASS co-maintainer
media: platform: samsung: s5p-jpeg: Remove deadcode
media: qcom: camss: Add MSM8953 resources
media: dt-bindings: Add qcom,msm8953-camss
media: qcom: camss: implement pm domain ops for VFE v4.1
media: platform: exynos4-is: Fix an OF node reference leak in fimc_md_is_isp_available
media: adv7180: Also check for "adi,force-bt656-4"
media: dt-bindings: adv7180: Document 'adi,force-bt656-4'
media: mgb4: Fix inconsistent input/output alignment in loopback mode
media: replace obsolete hans.verkuil@cisco.com alias
Documentation: media: improve V4L2_CID_MIN_BUFFERS_FOR_*, doc
media: vicodec: add V4L2_CID_MIN_BUFFERS_FOR_* controls
media: atomisp: Add check for rgby_data memory allocation failure
media: atomisp: remove redundant re-checking of err
media: atomisp: Fix spelling errors reported by codespell
media: atomisp: Remove License information boilerplate
media: atomisp: Fix typos in comment
media: atomisp: hmm_bo: Fix spelling errors in hmm_bo.h
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull landlock fixes from Mickaël Salaün:
"This fixes issues in the Landlock's sandboxer sample and
documentation, slightly refactors helpers (required for ongoing patch
series), and improve/fix a feature merged in v6.12 (signal and
abstract UNIX socket scoping)"
* tag 'landlock-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
landlock: Optimize scope enforcement
landlock: Refactor network access mask management
landlock: Refactor filesystem access mask management
samples/landlock: Clarify option parsing behaviour
samples/landlock: Refactor help message
samples/landlock: Fix port parsing in sandboxer
landlock: Fix grammar issues in documentation
landlock: Improve documentation of previous limitations
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With the introduction of the new object and its infrastructure, update the
doc and the vIOMMU graph to reflect that.
Link: https://patch.msgid.link/r/e1ff278b7163909b2641ae04ff364bb41d2a2a2e.1730836308.git.nicolinc@nvidia.com
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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With the introduction of the new object and its infrastructure, update the
doc to reflect that and add a new graph.
Link: https://patch.msgid.link/r/7e4302064e0d02137c1b1e139342affc0485ed3f.1730836219.git.nicolinc@nvidia.com
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Linux 6.12-rc7
* tag 'v6.12-rc7': (1909 commits)
Linux 6.12-rc7
filemap: Fix bounds checking in filemap_read()
i2c: designware: do not hold SCL low when I2C_DYNAMIC_TAR_UPDATE is not set
mailmap: add entry for Thorsten Blum
ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()
signal: restore the override_rlimit logic
fs/proc: fix compile warning about variable 'vmcore_mmap_ops'
ucounts: fix counter leak in inc_rlimit_get_ucounts()
selftests: hugetlb_dio: check for initial conditions to skip in the start
mm: fix docs for the kernel parameter ``thp_anon=``
mm/damon/core: avoid overflow in damon_feed_loop_next_input()
mm/damon/core: handle zero schemes apply interval
mm/damon/core: handle zero {aggregation,ops_update} intervals
mm/mlock: set the correct prev on failure
objpool: fix to make percpu slot allocation more robust
mm/page_alloc: keep track of free highatomic
bcachefs: Fix UAF in __promote_alloc() error path
bcachefs: Change OPT_STR max to be 1 less than the size of choices array
bcachefs: btree_cache.freeable list fixes
bcachefs: check the invalid parameter for perf test
...
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Clearly state that the V4L2_CID_MIN_BUFFERS_FOR_OUTPUT and
V4L2_CID_MIN_BUFFERS_FOR_CAPTURE controls are required for
stateful codecs.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add two media bus formats that identify 30-bit RGB pixels transmitted
by a LVDS link with five differential data pairs, serialized into 7
time slots, using standard SPWG/VESA or JEIDA data mapping.
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241104032806.611890-5-victor.liu@nxp.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Pedro Falcato's optimization [1] for checking sealed VMAs, which replaces
the can_modify_mm() function with an in-loop check, necessitates an update
to the mseal.rst documentation to reflect this change.
Furthermore, the document has received offline comments regarding the code
sample and suggestions for sentence clarification to enhance reader
comprehension.
[1] https://lore.kernel.org/linux-mm/20240817-mseal-depessimize-v3-0-d8d2e037df30@gmail.com/
Update doc after in-loop change: mprotect/madvise can have
partially updated and munmap is atomic.
Fix indentation and clarify some sections to improve readability.
Link: https://lkml.kernel.org/r/20241008040942.1478931-2-jeffxu@chromium.org
Fixes: df2a7df9a9aa ("mm/munmap: replace can_modify_mm with can_modify_vma")
Fixes: 4a2dd02b0916 ("mm/mprotect: replace can_modify_mm with can_modify_vma")
Fixes: 38075679b5f1 ("mm/mremap: replace can_modify_mm with can_modify_vma")
Fixes: 23c57d1fa2b9 ("mseal: replace can_modify_mm_madv with a vma variant")
Signed-off-by: Jeff Xu <jeffxu@chromium.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Elliott Hughes <enh@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jorge Lucangeli Obes <jorgelo@chromium.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Matthew Wilcox <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: "Theo de Raadt" <deraadt@openbsd.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Improve user space and kernel documentation.
Signed-off-by: Daniel Burgener <dburgener@linux.microsoft.com>
Link: https://lore.kernel.org/r/20241015172647.2007644-1-dburgener@linux.microsoft.com
[mic: Extend commit message, reword ptrace restriction as discussed in
the thread]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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Deprecation period of reiserfs ends with the end of this year so it is
time to remove it from the kernel.
Acked-by: Darrick J. Wong <djwong@kernel.org>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
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Add two meta formats for PiSP FE: V4L2_META_FMT_RPI_FE_CFG and
V4L2_META_FMT_RPI_FE_STATS. The former is used to provide configuration
for the FE and the latter is used to read the statistics from the FE.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Improve consistency of previous limitations' subsection titles, and
expand a bit the IOCTL section.
This changes some HTML anchors and may break some external links though.
Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Cc: Tahera Fahimi <fahimitahera@gmail.com>
Reviewed-by: Günther Noack <gnoack3000@gmail.com>
Link: https://lore.kernel.org/r/20241004153122.501775-1-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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When the index is ORed with V4L2_FMTDESC_FLAG_ENUM_ALL the
driver clears the flag and enumerate all the possible formats,
ignoring any limitations from the current configuration.
Drivers which do not support this flag yet always return an EINVAL.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: improved doc when the new flag is not supported by the driver]
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The formats added by this patch are:
V4L2_PIX_FMT_Y16I
Interlaced lumina format primary use in RealSense Depth cameras with
stereo stream for left and right image sensors.
Signed-off-by: Dmitry Perchanov <dmitry.perchanov@intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/568efbd75290e286b8ad9e7347b5f43745121020.camel@intel.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Corrected a minor misspelling on line 30. This patch changes
'cicle' to 'cycle'.
Signed-off-by: Kendra Moore <kendra.j.moore3443@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The previous IOMMUFD_OBJ_HW_PAGETABLE has been reworked to two separated
objects: IOMMUFD_OBJ_HWPT_PAGING and IOMMUFD_OBJ_HWPT_NESTED in order to
support a nested translation context.
Corresponding to the latest iommufd APIs and uAPIs, update the doc so as
to reflect the new design.
Link: https://patch.msgid.link/r/20240913052519.2153-1-nicolinc@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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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
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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
...
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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>
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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>
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This is done primarily to get a docs build fix merged via another tree so
that "make htmldocs" stops failing.
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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>
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- 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>
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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
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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>
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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>
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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>
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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>
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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>
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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>
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Commit d7894721f73b ("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>
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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>
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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>
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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]
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