Linus Torvalds [Wed, 27 Nov 2024 01:54:58 +0000 (17:54 -0800)]
rust: fix up formatting after merge
When I merged the rust 'use' imports, I didn't realize that there's
an offical preferred idiomatic format - so while it all worked fine,
it doesn't match what 'make rustfmt' wants to make it.
Fix it up appropriately.
Suggested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 26 Nov 2024 22:54:00 +0000 (14:54 -0800)]
Merge tag 'perf-tools-for-v6.13-2024-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools updates from Namhyung Kim:
"perf record:
- Enable leader sampling for inherited task events. It was supported
only for system-wide events but the kernel started to support such
a setup since v6.12.
This is to reduce the number of PMU interrupts. The samples of the
leader event will contain counts of other events and no samples
will be generated for the other member events.
$ perf record -e '{cycles,instructions}:S' ${MYPROG}
perf report:
- Fix --branch-history option to display more branch-related
information like prediction, abort and cycles which is available
on Intel machines.
The HWMON provides various system information like CPU/GPU
temperature, fan speed and so on. Expose them as PMU events so that
users can see the values using perf stat commands.
- Make libunwind opt-in (LIBUNWIND=1) rather than opt-out.
The perf tools are generally built with libelf and libdw which has
unwinder functionality. The libunwind support predates it and no
need to have duplicate unwinders by default.
- Rename NO_DWARF=1 build option to NO_LIBDW=1 in order to clarify
it's using libdw for handling DWARF information.
Internals:
- Do not set exclude_guest bit in the perf_event_attr by default.
This was causing a trouble in AMD IBS PMU as it doesn't support the
bit. The bit will be set when it's needed later by the fallback
logic. Also update the missing feature detection logic to make sure
not clear supported bits unnecessarily.
- Run perf test in parallel by default and mark flaky tests
"exclusive" to run them serially at the end. Some test numbers are
changed but the test can complete in less than half the time.
JSON vendor events:
- Add AMD Zen 5 events and metrics.
- Add i.MX91 and i.MX95 DDR metrics
- Fix HiSilicon HIP08 Topdown metric name.
- Support compat events on PowerPC"
* tag 'perf-tools-for-v6.13-2024-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (232 commits)
perf tests: Fix hwmon parsing with PMU name test
perf hwmon_pmu: Ensure hwmon key union is zeroed before use
perf tests hwmon_pmu: Remove double evlist__delete()
perf/test: fix perf ftrace test on s390
perf bpf-filter: Return -ENOMEM directly when pfi allocation fails
perf test: Correct hwmon test PMU detection
perf: Remove unused del_perf_probe_events()
perf pmu: Move pmu_metrics_table__find and remove ARM override
perf jevents: Add map_for_cpu()
perf header: Pass a perf_cpu rather than a PMU to get_cpuid_str
perf header: Avoid transitive PMU includes
perf arm64 header: Use cpu argument in get_cpuid
perf header: Refactor get_cpuid to take a CPU for ARM
perf header: Move is_cpu_online to numa bench
perf jevents: fix breakage when do perf stat on system metric
perf test: Add missing __exit calls in tool/hwmon tests
perf tests: Make leader sampling test work without branch event
perf util: Remove kernel version deadcode
perf test shell trace_exit_race: Use --no-comm to avoid cases where COMM isn't resolved
perf test shell trace_exit_race: Show what went wrong in verbose mode
...
Linus Torvalds [Tue, 26 Nov 2024 22:49:20 +0000 (14:49 -0800)]
Merge tag 'parisc-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture update from Helge Deller:
- Fix function graph tracing disablement on parisc
* tag 'parisc-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc/ftrace: Fix function graph tracing disablement
Linus Torvalds [Tue, 26 Nov 2024 22:47:58 +0000 (14:47 -0800)]
Merge tag 'm68knommu-for-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
- only include FEC platform entries when hardware supports it
- fix typo in ifdef config name
* tag 'm68knommu-for-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: coldfire/device.c: only build FEC when HW macros are defined
m68k: mcfgpio: Fix incorrect register offset for CONFIG_M5441x
Linus Torvalds [Tue, 26 Nov 2024 22:00:26 +0000 (14:00 -0800)]
Merge tag 'rust-6.13' of https://github.com/Rust-for-Linux/linux
Pull rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Enable a series of lints, including safety-related ones, e.g. the
compiler will now warn about missing safety comments, as well as
unnecessary ones. How safety documentation is organized is a
frequent source of review comments, thus having the compiler guide
new developers on where they are expected (and where not) is very
nice.
- Start using '#[expect]': an interesting feature in Rust (stabilized
in 1.81.0) that makes the compiler warn if an expected warning was
_not_ emitted. This is useful to avoid forgetting cleaning up
locally ignored diagnostics ('#[allow]'s).
- Introduce '.clippy.toml' configuration file for Clippy, the Rust
linter, which will allow us to tweak its behaviour. For instance,
our first use cases are declaring a disallowed macro and, more
importantly, enabling the checking of private items.
- Lints-related fixes and cleanups related to the items above.
- Migrate from 'receiver_trait' to 'arbitrary_self_types': to get the
kernel into stable Rust, one of the major pieces of the puzzle is
the support to write custom types that can be used as 'self', i.e.
as receivers, since the kernel needs to write types such as 'Arc'
that common userspace Rust would not. 'arbitrary_self_types' has
been accepted to become stable, and this is one of the steps
required to get there.
- Remove usage of the 'new_uninit' unstable feature.
- Use custom C FFI types. Includes a new 'ffi' crate to contain our
custom mapping, instead of using the standard library 'core::ffi'
one. The actual remapping will be introduced in a later cycle.
- Map '__kernel_{size_t,ssize_t,ptrdiff_t}' to 'usize'/'isize'
instead of 32/64-bit integers.
- Fix 'size_t' in bindgen generated prototypes of C builtins.
- Warn on bindgen < 0.69.5 and libclang >= 19.1 due to a double issue
in the projects, which we managed to trigger with the upcoming
tracepoint support. It includes a build test since some
distributions backported the fix (e.g. Debian -- thanks!). All
major distributions we list should be now OK except Ubuntu non-LTS.
'macros' crate:
- Adapt the build system to be able run the doctests there too; and
clean up and enable the corresponding doctests.
'kernel' crate:
- Add 'alloc' module with generic kernel allocator support and remove
the dependency on the Rust standard library 'alloc' and the
extension traits we used to provide fallible methods with flags.
Add the 'Allocator' trait and its implementations '{K,V,KV}malloc'.
Add the 'Box' type (a heap allocation for a single value of type
'T' that is also generic over an allocator and considers the
kernel's GFP flags) and its shorthand aliases '{K,V,KV}Box'. Add
'ArrayLayout' type. Add 'Vec' (a contiguous growable array type)
and its shorthand aliases '{K,V,KV}Vec', including iterator
support.
For instance, now we may write code such as:
let mut v = KVec::new();
v.push(1, GFP_KERNEL)?;
assert_eq!(&v, &[1]);
Treewide, move as well old users to these new types.
- 'sync' module: add global lock support, including the
'GlobalLockBackend' trait; the 'Global{Lock,Guard,LockedBy}' types
and the 'global_lock!' macro. Add the 'Lock::try_lock' method.
- 'error' module: optimize 'Error' type to use 'NonZeroI32' and make
conversion functions public.
- 'page' module: add 'page_align' function.
- Add 'transmute' module with the existing 'FromBytes' and 'AsBytes'
traits.
- 'types' module: extend 'Opaque' type documentation and add simple
examples for the 'Either' types.
drm/panic:
- Clean up a series of Clippy warnings.
Documentation:
- Add coding guidelines for lints and the '#[expect]' feature.
- Add Ubuntu to the list of distributions in the Quick Start guide.
MAINTAINERS:
- Add Danilo Krummrich as maintainer of the new 'alloc' module.
And a few other small cleanups and fixes"
* tag 'rust-6.13' of https://github.com/Rust-for-Linux/linux: (82 commits)
rust: alloc: Fix `ArrayLayout` allocations
docs: rust: remove spurious item in `expect` list
rust: allow `clippy::needless_lifetimes`
rust: warn on bindgen < 0.69.5 and libclang >= 19.1
rust: use custom FFI integer types
rust: map `__kernel_size_t` and friends also to usize/isize
rust: fix size_t in bindgen prototypes of C builtins
rust: sync: add global lock support
rust: macros: enable the rest of the tests
rust: macros: enable paste! use from macro_rules!
rust: enable macros::module! tests
rust: kbuild: expand rusttest target for macros
rust: types: extend `Opaque` documentation
rust: block: fix formatting of `kernel::block::mq::request` module
rust: macros: fix documentation of the paste! macro
rust: kernel: fix THIS_MODULE header path in ThisModule doc comment
rust: page: add Rust version of PAGE_ALIGN
rust: helpers: remove unnecessary header includes
rust: exports: improve grammar in commentary
drm/panic: allow verbose version check
...
Linus Torvalds [Tue, 26 Nov 2024 21:44:27 +0000 (13:44 -0800)]
Merge tag 'docs-6.13-2' of git://git.lwn.net/linux
Pull more documentation updates from Jonathan Corbet:
"A few late-arriving fixes, plus two more significant changes that were
*almost* ready at the beginning of the merge window:
- A new document on debugging techniques from Sebastian Fricke
- A clarification on MODULE_LICENSE terms meant to head off the sort
of confusion that led to the recent Tuxedo Computers mess"
* tag 'docs-6.13-2' of git://git.lwn.net/linux:
docs: Add debugging guide for the media subsystem
docs: Add debugging section to process
docs/licensing: Clarify wording about "GPL" and "Proprietary"
docs: core-api/gfp_mask-from-fs-io: indicate that vmalloc supports GFP_NOFS/GFP_NOIO
Documentation: kernel-doc: enumerate identifier *type*s
Documentation: pwrseq: Fix trivial misspellings
Documentation: filesystems: update filename extensions
Linus Torvalds [Tue, 26 Nov 2024 21:39:02 +0000 (13:39 -0800)]
Merge tag 'vfs-6.13.ecryptfs.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull ecryptfs mount api conversion from Christian Brauner:
"Convert ecryptfs to the new mount api"
* tag 'vfs-6.13.ecryptfs.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
ecryptfs: Fix spelling mistake "validationg" -> "validating"
ecryptfs: Convert ecryptfs to use the new mount API
ecryptfs: Factor out mount option validation
Linus Torvalds [Tue, 26 Nov 2024 21:26:15 +0000 (13:26 -0800)]
Merge tag 'vfs-6.13.exportfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs exportfs updates from Christian Brauner:
"This contains work to bring NFS connectable file handles to userspace
servers.
The name_to_handle_at() system call is extended to encode connectable
file handles. Such file handles can be resolved to an open file with a
connected path. So far userspace NFS servers couldn't make use of this
functionality even though the kernel does already support it. This is
achieved by introducing a new flag for name_to_handle_at().
Similarly, the open_by_handle_at() system call is tought to understand
connectable file handles explicitly created via name_to_handle_at()"
* tag 'vfs-6.13.exportfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: open_by_handle_at() support for decoding "explicit connectable" file handles
fs: name_to_handle_at() support for "explicit connectable" file handles
fs: prepare for "explicit connectable" file handles
Linus Torvalds [Tue, 26 Nov 2024 21:18:00 +0000 (13:18 -0800)]
Merge tag 'vfs-6.13.rust.pid_namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull pid_namespace rust bindings from Christian Brauner:
"This contains my Rust bindings for pid namespaces needed for various
rust drivers. Here's a description of the basic C semantics and how
they are mapped to Rust.
The pid namespace of a task doesn't ever change once the task is
alive. A unshare(CLONE_NEWPID) or setns(fd_pidns/pidfd, CLONE_NEWPID)
will not have an effect on the calling task's pid namespace. It will
only effect the pid namespace of children created by the calling task.
This invariant guarantees that after having acquired a reference to a
task's pid namespace it will remain unchanged.
When a task has exited and been reaped release_task() will be called.
This will set the pid namespace of the task to NULL. So retrieving the
pid namespace of a task that is dead will return NULL. Note, that
neither holding the RCU lock nor holding a reference count to the task
will prevent release_task() from being called.
In order to retrieve the pid namespace of a task the
task_active_pid_ns() function can be used. There are two cases to
consider:
(1) retrieving the pid namespace of the current task
(2) retrieving the pid namespace of a non-current task
From system call context retrieving the pid namespace for case (1) is
always safe and requires neither RCU locking nor a reference count to
be held. Retrieving the pid namespace after release_task() for current
will return NULL but no codepath like that is exposed to Rust.
Retrieving the pid namespace from system call context for (2) requires
RCU protection. Accessing a pid namespace outside of RCU protection
requires a reference count that must've been acquired while holding
the RCU lock. Note that accessing a non-current task means NULL can be
returned as the non-current task could have already passed through
release_task().
To retrieve (1) the current_pid_ns!() macro should be used. It ensures
that the returned pid namespace cannot outlive the calling scope. The
associated current_pid_ns() function should not be called directly as
it could be abused to created an unbounded lifetime for the pid
namespace. The current_pid_ns!() macro allows Rust to handle the
common case of accessing current's pid namespace without RCU
protection and without having to acquire a reference count.
For (2) the task_get_pid_ns() method must be used. This will always
acquire a reference on the pid namespace and will return an Option to
force the caller to explicitly handle the case where pid namespace is
None. Something that tends to be forgotten when doing the equivalent
operation in C.
Missing RCU primitives make it difficult to perform operations that
are otherwise safe without holding a reference count as long as RCU
protection is guaranteed. But it is not important currently. But we do
want it in the future.
Note that for (2) the required RCU protection around calling
task_active_pid_ns() synchronizes against putting the last reference
of the associated struct pid of task->thread_pid. The struct pid
stored in that field is used to retrieve the pid namespace of the
caller. When release_task() is called task->thread_pid will be NULLed
and put_pid() on said struct pid will be delayed in free_pid() via
call_rcu() allowing everyone with an RCU protected access to the
struct pid acquired from task->thread_pid to finish"
* tag 'vfs-6.13.rust.pid_namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
rust: add PidNamespace
Linus Torvalds [Tue, 26 Nov 2024 20:59:30 +0000 (12:59 -0800)]
Merge tag 'nfsd-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd updates from Chuck Lever:
"Jeff Layton contributed a scalability improvement to NFSD's NFSv4
backchannel session implementation. This improvement is intended to
increase the rate at which NFSD can safely recall NFSv4 delegations
from clients, to avoid the need to revoke them. Revoking requires a
slow state recovery process.
A wide variety of bug fixes and other incremental improvements make up
the bulk of commits in this series. As always I am grateful to the
NFSD contributors, reviewers, testers, and bug reporters who
participated during this cycle"
* tag 'nfsd-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (72 commits)
nfsd: allow for up to 32 callback session slots
nfs_common: must not hold RCU while calling nfsd_file_put_local
nfsd: get rid of include ../internal.h
nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur
NFSD: Add nfsd4_copy time-to-live
NFSD: Add a laundromat reaper for async copy state
NFSD: Block DESTROY_CLIENTID only when there are ongoing async COPY operations
NFSD: Handle an NFS4ERR_DELAY response to CB_OFFLOAD
NFSD: Free async copy information in nfsd4_cb_offload_release()
NFSD: Fix nfsd4_shutdown_copy()
NFSD: Add a tracepoint to record canceled async COPY operations
nfsd: make nfsd4_session->se_flags a bool
nfsd: remove nfsd4_session->se_bchannel
nfsd: make use of warning provided by refcount_t
nfsd: Don't fail OP_SETCLIENTID when there are too many clients.
svcrdma: fix miss destroy percpu_counter in svc_rdma_proc_init()
xdrgen: Remove program_stat_to_errno() call sites
xdrgen: Update the files included in client-side source code
xdrgen: Remove check for "nfs_ok" in C templates
xdrgen: Remove tracepoint call site
...
Linus Torvalds [Tue, 26 Nov 2024 20:50:58 +0000 (12:50 -0800)]
Merge tag 'f2fs-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"This series introduces a device aliasing feature where user can carve
out partitions but reclaim the space back by deleting aliased file in
root dir.
In addition to that, there're numerous minor bug fixes in zoned device
support, checkpoint=disable, extent cache management, fiemap, and
lazytime mount option. The full list of noticeable changes can be
found below.
Enhancements:
- introduce device aliasing file
- add stats in debugfs to show multiple devices
- add a sysfs node to limit max read extent count per-inode
- modify f2fs_is_checkpoint_ready logic to allow more data to be
written with the CP disable
- decrease spare area for pinned files for zoned devices
Fixes:
- Revert "f2fs: remove unreachable lazytime mount option parsing"
- adjust unusable cap before checkpoint=disable mode
- fix to drop all discards after creating snapshot on lvm device
- fix to shrink read extent node in batches
- fix changing cursegs if recovery fails on zoned device
- fix to adjust appropriate length for fiemap
- fix fiemap failure issue when page size is 16KB
- fix to avoid forcing direct write to use buffered IO on inline_data
inode
- fix to map blocks correctly for direct write
- fix to account dirty data in __get_secs_required()
- fix null-ptr-deref in f2fs_submit_page_bio()
- fix inconsistent update of i_blocks in release_compress_blocks and
reserve_compress_blocks"
* tag 'f2fs-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (40 commits)
f2fs: fix to drop all discards after creating snapshot on lvm device
f2fs: add a sysfs node to limit max read extent count per-inode
f2fs: fix to shrink read extent node in batches
f2fs: print message if fscorrupted was found in f2fs_new_node_page()
f2fs: clear SBI_POR_DOING before initing inmem curseg
f2fs: fix changing cursegs if recovery fails on zoned device
f2fs: adjust unusable cap before checkpoint=disable mode
f2fs: fix to requery extent which cross boundary of inquiry
f2fs: fix to adjust appropriate length for fiemap
f2fs: clean up w/ F2FS_{BLK_TO_BYTES,BTYES_TO_BLK}
f2fs: fix to do cast in F2FS_{BLK_TO_BYTES, BTYES_TO_BLK} to avoid overflow
f2fs: replace deprecated strcpy with strscpy
Revert "f2fs: remove unreachable lazytime mount option parsing"
f2fs: fix to avoid forcing direct write to use buffered IO on inline_data inode
f2fs: fix to map blocks correctly for direct write
f2fs: fix race in concurrent f2fs_stop_gc_thread
f2fs: fix fiemap failure issue when page size is 16KB
f2fs: remove redundant atomic file check in defragment
f2fs: fix to convert log type to segment data type correctly
f2fs: clean up the unused variable additional_reserved_segments
...
Linus Torvalds [Tue, 26 Nov 2024 20:41:27 +0000 (12:41 -0800)]
Merge tag 'fuse-update-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Add page -> folio conversions (Joanne Koong, Josef Bacik)
- Allow max size of fuse requests to be configurable with a sysctl
(Joanne Koong)
- Allow FOPEN_DIRECT_IO to take advantage of async code path (yangyun)
- Fix large kernel reads (like a module load) in virtio_fs (Hou Tao)
- Fix attribute inconsistency in case readdirplus (and plain lookup in
corner cases) is racing with inode eviction (Zhang Tianci)
- Fix a WARN_ON triggered by virtio_fs (Asahi Lina)
* tag 'fuse-update-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (30 commits)
virtiofs: dax: remove ->writepages() callback
fuse: check attributes staleness on fuse_iget()
fuse: remove pages for requests and exclusively use folios
fuse: convert direct io to use folios
mm/writeback: add folio_mark_dirty_lock()
fuse: convert writebacks to use folios
fuse: convert retrieves to use folios
fuse: convert ioctls to use folios
fuse: convert writes (non-writeback) to use folios
fuse: convert reads to use folios
fuse: convert readdir to use folios
fuse: convert readlink to use folios
fuse: convert cuse to use folios
fuse: add support in virtio for requests using folios
fuse: support folios in struct fuse_args_pages and fuse_copy_pages()
fuse: convert fuse_notify_store to use folios
fuse: convert fuse_retrieve to use folios
fuse: use the folio based vmstat helpers
fuse: convert fuse_writepage_need_send to take a folio
fuse: convert fuse_do_readpage to use folios
...
Linus Torvalds [Tue, 26 Nov 2024 20:34:50 +0000 (12:34 -0800)]
Merge tag 'gfs2-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- Fix the code that cleans up left-over unlinked files.
Various fixes and minor improvements in deleting files cached or held
open remotely.
- Simplify the use of dlm's DLM_LKF_QUECVT flag.
- A few other minor cleanups.
* tag 'gfs2-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (21 commits)
gfs2: Prevent inode creation race
gfs2: Only defer deletes when we have an iopen glock
gfs2: Simplify DLM_LKF_QUECVT use
gfs2: gfs2_evict_inode clarification
gfs2: Make gfs2_inode_refresh static
gfs2: Use get_random_u32 in gfs2_orlov_skip
gfs2: Randomize GLF_VERIFY_DELETE work delay
gfs2: Use mod_delayed_work in gfs2_queue_try_to_evict
gfs2: Update to the evict / remote delete documentation
gfs2: Call gfs2_queue_verify_delete from gfs2_evict_inode
gfs2: Clean up delete work processing
gfs2: Minor delete_work_func cleanup
gfs2: Return enum evict_behavior from gfs2_upgrade_iopen_glock
gfs2: Rename dinode_demise to evict_behavior
gfs2: Rename GIF_{DEFERRED -> DEFER}_DELETE
gfs2: Faster gfs2_upgrade_iopen_glock wakeups
KMSAN: uninit-value in inode_go_dump (5)
gfs2: Fix unlinked inode cleanup
gfs2: Allow immediate GLF_VERIFY_DELETE work
gfs2: Initialize gl_no_formal_ino earlier
...
Linus Torvalds [Tue, 26 Nov 2024 02:50:55 +0000 (18:50 -0800)]
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, lpfc, hisi_sas, st).
Amazingly enough, no core changes with the biggest set of driver
changes being ufs (which conflicted with it's own fixes a bit, hence
the merges) and the rest being minor fixes and updates"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (97 commits)
scsi: st: New session only when Unit Attention for new tape
scsi: st: Add MTIOCGET and MTLOAD to ioctls allowed after device reset
scsi: st: Don't modify unknown block number in MTIOCGET
scsi: ufs: core: Restore SM8650 support
scsi: sun3: Mark driver struct with __refdata to prevent section mismatch
scsi: sg: Enable runtime power management
scsi: qedi: Fix a possible memory leak in qedi_alloc_and_init_sb()
scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb()
scsi: fusion: Remove unused variable 'rc'
scsi: bfa: Fix use-after-free in bfad_im_module_exit()
scsi: esas2r: Remove unused esas2r_build_cli_req()
scsi: target: Fix incorrect function name in pscsi_create_type_disk()
scsi: ufs: Replace deprecated PCI functions
scsi: Switch back to struct platform_driver::remove()
scsi: pm8001: Increase request sg length to support 4MiB requests
scsi: pm8001: Initialize devices in pm8001_alloc_dev()
scsi: pm8001: Use module param to set pcs event log severity
scsi: ufs: ufs-mediatek: Configure individual LU queue flags
scsi: MAINTAINERS: Update UFS Exynos entry
scsi: lpfc: Copyright updates for 14.4.0.6 patches
...
Linus Torvalds [Tue, 26 Nov 2024 02:45:33 +0000 (18:45 -0800)]
iommu: remove stale declaration left over by a merge conflict
The merge commit ae3325f752ef ("Merge branches 'arm/smmu', 'mediatek',
's390', 'ti/omap', 'riscv' and 'core' into next") left a stale
declaration of 'iommu_present()' even though the 'core' branch that was
merged had removed the function (and the declaration).
Linus Torvalds [Tue, 26 Nov 2024 02:31:48 +0000 (18:31 -0800)]
Merge tag 'libnvdimm-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull nvdimm and DAX updates from Ira Weiny:
"Most represent minor cleanups and code removals. One patch fixes
potential NULL pointer arithmetic which was benign because the offset
of the member was 0. Nevertheless it should be cleaned up.
- typo fixes
- clarify logic to remove potential NULL pointer math
- remove dead code"
* tag 'libnvdimm-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax: Remove an unused field in struct dax_operations
dax: delete a stale directory pmem
nvdimm: rectify the illogical code within nd_dax_probe()
nvdimm: Correct some typos in comments
Linus Torvalds [Tue, 26 Nov 2024 01:31:39 +0000 (17:31 -0800)]
Merge tag 'mailbox-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox
Pull mailbox updates from Jassi Brar:
"Common:
- switch back from remove_new() to remove() callback
imx:
- fix format specifier
zynqmp:
- setup IPI for each child node
thead:
- Add th1520 driver and bindings
qcom:
- add SM8750 and SAR2130p compatibles
- fix expected clocks for callbacks
- use IRQF_NO_SUSPEND for cpucp
mtk-cmdq:
- switch to __pm_runtime_put_autosuspend()
- fix alloc size of clocks
mpfs:
- fix reg properties
ti-msgmgr:
- don't use of_match_ptr helper
- enable COMPILE_TEST build
pcc:
- consider the PCC_ACK_FLAG
arm_mhuv2:
- fix non-fatal improper reuse of variable"
* tag 'mailbox-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox:
mailbox: pcc: Check before sending MCTP PCC response ACK
mailbox: Switch back to struct platform_driver::remove()
mailbox: imx: Modify the incorrect format specifier
mailbox: arm_mhuv2: clean up loop in get_irq_chan_comb()
mailbox: zynqmp: setup IPI for each valid child node
dt-bindings: mailbox: Add thead,th1520-mailbox bindings
mailbox: Introduce support for T-head TH1520 Mailbox driver
mailbox: mtk-cmdq: fix wrong use of sizeof in cmdq_get_clocks()
dt-bindings: mailbox: qcom-ipcc: Add SM8750
dt-bindings: mailbox: qcom,apcs-kpss-global: correct expected clocks for fallbacks
dt-bindings: mailbox: qcom-ipcc: Add SAR2130P compatible
mailbox: ti-msgmgr: Allow building under COMPILE_TEST
mailbox: ti-msgmgr: Remove use of of_match_ptr() helper
mailbox: qcom-cpucp: Mark the irq with IRQF_NO_SUSPEND flag
mailbox: mtk-cmdq-mailbox: Switch to __pm_runtime_put_autosuspend()
mailbox: mpfs: support new, syscon based, devicetree configuration
dt-bindings: mailbox: mpfs: fix reg properties
Linus Torvalds [Tue, 26 Nov 2024 01:15:12 +0000 (17:15 -0800)]
Merge tag 'i2c-for-6.13-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull more i2c updates from Wolfram Sang:
"Andi was super busy the last weeks, so this pull requests contains one
series (nomadik) and a number of smaller additions which were ready to
go but nearly overlooked.
New feature support:
- Added support for frequencies up to 3.4 MHz on Nomadik I2C
- DesignWare now accounts for bus capacitance and clock optimisation
(declared as new parameters in the binding) to improve the
calculation of signal rise and fall times (t_high and t_low)
New Hardware support:
- DWAPB I2C controller on FUJITSU-MONAKA (new ACPI HID)
- Allwinner A523 (new compatible ID)
- Mobileye EyeQ6H (new compatible ID)"
* tag 'i2c-for-6.13-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: transfer i2c-aspeed maintainership from Brendan to Ryan
i2c: designware: determine HS tHIGH and tLOW based on HW parameters
dt-bindings: i2c: snps,designware-i2c: declare bus capacitance and clk freq optimized
i2c: nomadik: support >=1MHz speed modes
i2c: nomadik: fix BRCR computation
i2c: nomadik: support Mobileye EyeQ6H I2C controller
i2c: nomadik: switch from of_device_is_compatible() to of_match_device()
dt-bindings: i2c: nomadik: support 400kHz < clock-frequency <= 3.4MHz
dt-bindings: i2c: nomadik: add mobileye,eyeq6h-i2c bindings
dt-bindings: i2c: mv64xxx: Add Allwinner A523 compatible string
i2c: designware: Add ACPI HID for DWAPB I2C controller on FUJITSU-MONAKA
i2c: qup: use generic device property accessors
Linus Torvalds [Tue, 26 Nov 2024 01:12:54 +0000 (17:12 -0800)]
Merge tag 'firewire-updates-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Takashi Sakamoto:
"A few updates for the 6.13 kernel, including some typo corrections in
the software stack and some fixes for tools. Additionally, it includes
a change resulting from the deprecation of a kernel API in the PCI
subsystem"
* tag 'firewire-updates-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
tools/firewire: Fix several incorrect format specifiers
firewire: ohci: Replace deprecated PCI functions
firewire: Correct some typos
Linus Torvalds [Tue, 26 Nov 2024 00:51:24 +0000 (16:51 -0800)]
Merge tag 'slab-for-6.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
- Add new slab_strict_numa boot parameter to enforce per-object memory
policies on top of slab folio policies, for systems where saving cost
of remote accesses is more important than minimizing slab allocation
overhead (Christoph Lameter)
- Fix for freeptr_offset alignment check being too strict for m68k
(Geert Uytterhoeven)
- krealloc() fixes for not violating __GFP_ZERO guarantees on
krealloc() when slub_debug (redzone and object tracking) is enabled
(Feng Tang)
- Fix a memory leak in case sysfs registration fails for a slab cache,
and also no longer fail to create the cache in that case (Hyeonggon
Yoo)
- Fix handling of detected consistency problems (due to buggy slab
user) with slub_debug enabled, so that it does not cause further list
corruption bugs (yuan.gao)
- Code cleanup and kerneldocs polishing (Zhen Lei, Vlastimil Babka)
* tag 'slab-for-6.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
slab: Fix too strict alignment check in create_cache()
mm/slab: Allow cache creation to proceed even if sysfs registration fails
mm/slub: Avoid list corruption when removing a slab from the full list
mm/slub, kunit: Add testcase for krealloc redzone and zeroing
mm/slub: Improve redzone check and zeroing for krealloc()
mm/slub: Consider kfence case for get_orig_size()
SLUB: Add support for per object memory policies
mm, slab: add kerneldocs for common SLAB_ flags
mm/slab: remove duplicate check in create_cache()
mm/slub: Move krealloc() and related code to slub.c
mm/kasan: Don't store metadata inside kmalloc object when slub_debug_orig_size is on
Linus Torvalds [Tue, 26 Nov 2024 00:09:48 +0000 (16:09 -0800)]
Merge tag 'mm-nonmm-stable-2024-11-24-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- The series "resource: A couple of cleanups" from Andy Shevchenko
performs some cleanups in the resource management code
- The series "Improve the copy of task comm" from Yafang Shao addresses
possible race-induced overflows in the management of
task_struct.comm[]
- The series "Remove unnecessary header includes from
{tools/}lib/list_sort.c" from Kuan-Wei Chiu adds some cleanups and a
small fix to the list_sort library code and to its selftest
- The series "Enhance min heap API with non-inline functions and
optimizations" also from Kuan-Wei Chiu optimizes and cleans up the
min_heap library code
- The series "nilfs2: Finish folio conversion" from Ryusuke Konishi
finishes off nilfs2's folioification
- The series "add detect count for hung tasks" from Lance Yang adds
more userspace visibility into the hung-task detector's activity
- Apart from that, singelton patches in many places - please see the
individual changelogs for details
* tag 'mm-nonmm-stable-2024-11-24-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (71 commits)
gdb: lx-symbols: do not error out on monolithic build
kernel/reboot: replace sprintf() with sysfs_emit()
lib: util_macros_kunit: add kunit test for util_macros.h
util_macros.h: fix/rework find_closest() macros
Improve consistency of '#error' directive messages
ocfs2: fix uninitialized value in ocfs2_file_read_iter()
hung_task: add docs for hung_task_detect_count
hung_task: add detect count for hung tasks
dma-buf: use atomic64_inc_return() in dma_buf_getfile()
fs/proc/kcore.c: fix coccinelle reported ERROR instances
resource: avoid unnecessary resource tree walking in __region_intersects()
ocfs2: remove unused errmsg function and table
ocfs2: cluster: fix a typo
lib/scatterlist: use sg_phys() helper
checkpatch: always parse orig_commit in fixes tag
nilfs2: convert metadata aops from writepage to writepages
nilfs2: convert nilfs_recovery_copy_block() to take a folio
nilfs2: convert nilfs_page_count_clean_buffers() to take a folio
nilfs2: remove nilfs_writepage
nilfs2: convert checkpoint file to be folio-based
...
Linus Torvalds [Mon, 25 Nov 2024 23:44:29 +0000 (15:44 -0800)]
Merge tag 'trace-rust-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull rust trace event support from Steven Rostedt:
"Allow Rust code to have trace events
Trace events is a popular way to debug what is happening inside the
kernel or just to find out what is happening. Rust code is being added
to the Linux kernel but it currently does not support the tracing
infrastructure. Add support of trace events inside Rust code"
* tag 'trace-rust-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
rust: jump_label: skip formatting generated file
jump_label: rust: pass a mut ptr to `static_key_count`
samples: rust: fix `rust_print` build making it a combined module
rust: add arch_static_branch
jump_label: adjust inline asm to be consistent
rust: samples: add tracepoint to Rust sample
rust: add tracepoint support
rust: add static_branch_unlikely for static_key_false
David Laight [Sun, 24 Nov 2024 15:39:00 +0000 (15:39 +0000)]
x86: fix off-by-one in access_ok()
When the size isn't a small constant, __access_ok() will call
valid_user_address() with the address after the last byte of the user
buffer.
It is valid for a buffer to end with the last valid user address so
valid_user_address() must allow accesses to the base of the guard page.
[ This introduces an off-by-one in the other direction for the plain
non-sized accesses, but since we have that guard region that is a
whole page, those checks "allowing" accesses to that guard region
don't really matter. The access will fault anyway, whether to the
guard page or if the address has been masked to all ones - Linus ]
Fixes: 86e6b1547b3d0 ("x86: fix user address masking non-canonical speculation issue") Signed-off-by: David Laight <david.laight@aculab.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 22 Nov 2024 19:18:25 +0000 (11:18 -0800)]
futex: improve user space accesses
Josh Poimboeuf reports that he got a "will-it-scale.per_process_ops 1.9%
improvement" report for his patch that changed __get_user() to use
pointer masking instead of the explicit speculation barrier. However,
that patch doesn't actually work in the general case, because some (very
bad) architecture-specific code actually depends on __get_user() also
working on kernel addresses.
A profile showed that the offending __get_user() was the futex code,
which really should be fixed up to not use that horrid legacy case.
Rewrite futex_get_value_locked() to use the modern user acccess helpers,
and inline it so that the compiler not only avoids the function call for
a few instructions, but can do CSE on the address masking.
It also turns out the x86 futex functions have unnecessary barriers in
other places, so let's fix those up too.
Linus Torvalds [Mon, 25 Nov 2024 20:07:45 +0000 (12:07 -0800)]
Merge tag 'fbdev-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev updates from Helge Deller:
- omapfb: Remove unused code (Dr. David Alan Gilbert)
- sh7760fb: Fix memory leak in error path of sh7760fb_alloc_mem() (Zhen
Lei)
* tag 'fbdev-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: omapfb: Remove some deadcode
fbdev: sh7760fb: Fix a possible memory leak in sh7760fb_alloc_mem()
Linus Torvalds [Mon, 25 Nov 2024 18:31:39 +0000 (10:31 -0800)]
Merge tag 'input-for-v6.13-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- support for NT36672A touchscreen added to novatek-nvt-ts driver
- a change to ads7846 driver to prevent XPT2046 from locking up
- a change switching platform input dirves back to using remove()
method (from remove_new())
- updates to a number of input drivers to use the new cleanup
facilities (__free(...), guard(), and scoped-guard()) which ensure
that the resources and locks are released properly and automatically
- other assorted driver cleanups and fixes.
* tag 'input-for-v6.13-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (109 commits)
Input: mpr121 - use devm_regulator_get_enable_read_voltage()
Input: sun4i-lradc-keys - don't include 'pm_wakeup.h' directly
Input: spear-keyboard - don't include 'pm_wakeup.h' directly
Input: cypress-sf - constify struct i2c_device_id
Input: ads7846 - increase xfer array size in 'struct ser_req'
Input: fix the input_event struct documentation
Input: i8042 - fix typo dublicate to duplicate
Input: ads7846 - add dummy command register clearing cycle
Input: cs40l50 - fix wrong usage of INIT_WORK()
Input: introduce notion of passive observers for input handlers
Input: maple_keyb - use guard notation when acquiring mutex
Input: locomokbd - use guard notation when acquiring spinlock
Input: hilkbd - use guard notation when acquiring spinlock
Input: synaptics-rmi4 - switch to using cleanup functions in F34
Input: synaptics - fix a typo
dt-bindings: input: rotary-encoder: Fix "rotary-encoder,rollover" type
Input: omap-keypad - use guard notation when acquiring mutex
Input: imagis - fix warning regarding 'imagis_3038_data' being unused
Input: userio - remove unneeded semicolon
Input: sparcspkr - use cleanup facility for device_node
...
Linus Torvalds [Mon, 25 Nov 2024 17:21:21 +0000 (09:21 -0800)]
Revert "HID: bpf: allow write access to quirks field in struct hid_device"
This reverts commit 6fd47effe92b, and the related self-test update
commit e14e0eaeb040 ("selftests/hid: add test for assigning a given
device to hid-generic").
It results in things like the scroll wheel on Logitech mice not working
after a reboot due to the kernel being confused about the state of the
high-resolution mode.
Quoting Benjamin Tissoires:
"The idea of 6fd47effe92b was to be able to call hid_bpf_rdesc_fixup()
once per reprobe of the device.
However, because the bpf filter can now change the quirk value, the
call had to be moved before the driver gets bound (which was
previously ensuring the unicity of the call).
The net effect is that now, in the case hid-generic gets loaded first
and then the specific driver gets loaded once the disk is available,
the value of ->quirks is not reset, but kept to the value that was set
by hid-generic (HID_QUIRK_INPUT_PER_APP).
Once hid-logitech-hidpp kicks in, that quirk is now set, which creates
two inputs for the single mouse: one keyboard for fancy shortcuts, and
one mouse node.
However, hid-logitech-hidpp expects only one input node to be attached
(it stores it into hidpp->input), and when a wheel event is received,
because there is some processing with high-resolution wheel events,
the wheel event is injected into hidpp->input.
And of course, when HID_QUIRK_INPUT_PER_APP is set, hidpp->input gets
the keyboard node, which doesn't have wheel event type, and the events
are ignored"
Miguel Ojeda [Sun, 17 Nov 2024 13:31:27 +0000 (14:31 +0100)]
docs: rust: remove spurious item in `expect` list
This list started as a "when to prefer `expect`" list, but at some point
during writing I changed it to a "prefer `expect` unless..." one. However,
the first bullet remained, which does not make sense anymore.
Thus remove it. In addition, fix nearby typo.
Fixes: 04866494e936 ("Documentation: rust: discuss `#[expect(...)]` in the guidelines") Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20241117133127.473937-1-ojeda@kernel.org Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Miguel Ojeda [Sat, 16 Nov 2024 18:15:37 +0000 (19:15 +0100)]
rust: allow `clippy::needless_lifetimes`
In beta Clippy (i.e. Rust 1.83.0), the `needless_lifetimes` lint has
been extended [1] to suggest eliding `impl` lifetimes, e.g.
error: the following explicit lifetimes could be elided: 'a
--> rust/kernel/list.rs:647:6
|
647 | impl<'a, T: ?Sized + ListItem<ID>, const ID: u64> FusedIterator for Iter<'a, T, ID> {}
| ^^ ^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
= note: `-D clippy::needless-lifetimes` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(clippy::needless_lifetimes)]`
help: elide the lifetimes
|
647 - impl<'a, T: ?Sized + ListItem<ID>, const ID: u64> FusedIterator for Iter<'a, T, ID> {}
647 + impl<T: ?Sized + ListItem<ID>, const ID: u64> FusedIterator for Iter<'_, T, ID> {}
A possibility would have been to clean them -- the RFC patch [2] did
this, while asking if we wanted these cleanups. There is an open issue
[3] in Clippy about being able to differentiate some of the new cases,
e.g. those that do not involve introducing `'_`. Thus it seems others
feel similarly.
Thus, for the time being, we decided to `allow` the lint.
Adam Young [Wed, 20 Nov 2024 19:02:14 +0000 (14:02 -0500)]
mailbox: pcc: Check before sending MCTP PCC response ACK
Type 4 PCC channels have an option to send back a response
to the platform when they are done processing the request.
The flag to indicate whether or not to respond is inside
the message body, and thus is not available to the pcc
mailbox.
If the flag is not set, still set command completion
bit after processing message.
In order to read the flag, this patch maps the shared
buffer to virtual memory. To avoid duplication of mapping
the shared buffer is then made available to be used by
the driver that uses the mailbox.
Signed-off-by: Adam Young <admiyo@os.amperecomputing.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Uwe Kleine-König [Tue, 19 Nov 2024 08:16:51 +0000 (09:16 +0100)]
mailbox: Switch back to struct platform_driver::remove()
After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/mailbox to use .remove(),
with the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.
Make a few indentions consistent while touching these struct
initializers.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Dan Carpenter [Thu, 14 Nov 2024 09:00:12 +0000 (12:00 +0300)]
mailbox: arm_mhuv2: clean up loop in get_irq_chan_comb()
Both the inner and outer loops in this code use the "i" iterator.
The inner loop should really use a different iterator.
It doesn't affect things in practice because the data comes from the
device tree. The "protocol" and "windows" variables are going to be
zero. That means we're always going to hit the "return &chans[channel];"
statement and we're not going to want to iterate through the outer
loop again.
Still it's worth fixing this for future use cases.
Tanmay Shah [Tue, 12 Nov 2024 17:06:12 +0000 (09:06 -0800)]
mailbox: zynqmp: setup IPI for each valid child node
As per zynqmp-ipi bindings, zynqmp IPI node can have multiple child nodes.
Current IPI setup function is set only for first child node. If IPI node
has multiple child nodes in the device-tree, then IPI setup fails for
child nodes other than first child node. In such case kernel will crash.
Fix this crash by registering IPI setup function for each available child
node.
Signed-off-by: Tanmay Shah <tanmay.shah@amd.com> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Michal Wilczynski [Mon, 4 Nov 2024 10:07:32 +0000 (11:07 +0100)]
mailbox: Introduce support for T-head TH1520 Mailbox driver
This driver was tested using the drm/imagination GPU driver. It was able
to successfully power on the GPU, by passing a command through mailbox
from E910 core to E902 that's responsible for powering up the GPU. The
GPU driver was able to read the BVNC version from control registers,
which confirms it was successfully powered on.
Though the driver still fails to boot the firmware, the mailbox driver
works when used with the not-yet-upstreamed firmware AON driver. There
is ongoing work to get the BXM-4-64 supported with the drm/imagination
driver [1], though it's not completed yet.
This work is based on the driver from the vendor kernel [2].
Krzysztof Kozlowski [Thu, 17 Oct 2024 09:14:47 +0000 (11:14 +0200)]
dt-bindings: mailbox: qcom,apcs-kpss-global: correct expected clocks for fallbacks
Commit 1e9cb7e007dc ("dt-bindings: mailbox: qcom,apcs-kpss-global: use
fallbacks") and commit 34d8775a0edc ("dt-bindings: mailbox:
qcom,apcs-kpss-global: use fallbacks for few variants") added fallbacks
to few existing compatibles. Neither devices with these existing
compatibles nor devices using fallbacks alone, have clocks, so the
"if:then:" block defining this constrain should be written as
"contains:".
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Andrew Davis [Tue, 15 Oct 2024 21:33:21 +0000 (16:33 -0500)]
mailbox: ti-msgmgr: Remove use of of_match_ptr() helper
When OF support is disabled the of_device_id struct match table can be
conditionally compiled out, this helper allows the assignment to also be
turned into a NULL conditionally. When the of_device_id struct is not
conditionally defined based on OF then the table will be unused causing a
warning. The two options are to either set the table as _maybe_unused, or
to just remove this helper since the table will always be defined.
Do the latter here.
Signed-off-by: Andrew Davis <afd@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nishanth Menon <nm@ti.com> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Sibi Sankar [Wed, 30 Oct 2024 12:55:12 +0000 (18:25 +0530)]
mailbox: qcom-cpucp: Mark the irq with IRQF_NO_SUSPEND flag
The qcom-cpucp mailbox irq is expected to function during suspend-resume
cycle particularly when the scmi cpufreq driver can query the current
frequency using the get_level message after the cpus are brought up during
resume. Hence mark the irq with IRQF_NO_SUSPEND flag to fix the do_xfer
failures we see during resume.
Err Logs:
arm-scmi firmware:scmi: timed out in resp(caller:do_xfer+0x164/0x568)
cpufreq: cpufreq_online: ->get() failed
Reported-by: Johan Hovold <johan+linaro@kernel.org> Closes: https://lore.kernel.org/lkml/ZtgFj1y5ggipgEOS@hovoldconsulting.com/ Fixes: 0e2a9a03106c ("mailbox: Add support for QTI CPUCP mailbox controller") Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Tested-by: Johan Hovold <johan+linaro@kernel.org> Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Sakari Ailus [Fri, 4 Oct 2024 09:41:23 +0000 (12:41 +0300)]
mailbox: mtk-cmdq-mailbox: Switch to __pm_runtime_put_autosuspend()
pm_runtime_put_autosuspend() will soon be changed to include a call to
pm_runtime_mark_last_busy(). This patch switches the current users to
__pm_runtime_put_autosuspend() which will continue to have the
functionality of old pm_runtime_put_autosuspend().
Conor Dooley [Wed, 2 Oct 2024 10:48:00 +0000 (11:48 +0100)]
mailbox: mpfs: support new, syscon based, devicetree configuration
The two previous bindings for this hardware were incorrect, as the
control/status and interrupt register regions should have been described
as syscons and dealt with via regmap in the driver. Add support for
accessing these registers using that method now, so that the hwmon
driver can be supported without using auxdev or hacks with io_remap().
Conor Dooley [Wed, 2 Oct 2024 10:47:59 +0000 (11:47 +0100)]
dt-bindings: mailbox: mpfs: fix reg properties
When the binding for this was originally written, and later modified,
mistakes were made - and the precise nature of the later modification
should have been a giveaway, but alas I was naive at the time.
A more correct modelling of the hardware is to use two syscons and have
a single reg entry for the mailbox, containing the mailbox region. The
two syscons contain the general control/status registers for the mailbox
and the interrupt related registers respectively. The reason for two
syscons is that the same mailbox is present on the non-SoC version of
the FPGA, which has no interrupt controller, and the shared part of the
rtl was unchanged between devices.
This is now coming to a head, because the control/status registers share
a register region with the "tvs" (temperature & voltage sensors)
registers and, as it turns out, people do want to monitor temperatures
and voltages...
Michael Wu [Thu, 3 Oct 2024 11:15:24 +0000 (19:15 +0800)]
i2c: designware: determine HS tHIGH and tLOW based on HW parameters
In commit 35eba185fd1a ("i2c: designware: Calculate SCL timing parameter
for High Speed Mode") the SCL high period count and low period count for
high speed mode are calculated based on fixed tHIGH = 160 and tLOW = 120.
However, the set of two fixed values is only applicable to the combination
of hardware parameters IC_CAP_LOADING is 400 and IC_CLK_FREQ_OPTIMIZATION
is true. Outside of this combination, the SCL frequency may not reach
3.4 MHz because the fixed tHIGH and tLOW are not small enough.
If IC_CAP_LOADING is 400, it means the bus capacitance is 400pF;
Otherwise, 100 pF. If IC_CLK_FREQ_OPTIMIZATION is true, it means that the
hardware reduces its internal clock frequency by reducing the internal
latency required to generate the high period and low period of the SCL line.
Section 3.15.4.5 in DesignWare DW_apb_i2b Databook v2.03 says that when
IC_CLK_FREQ_OPTIMIZATION = 0,
MIN_SCL_HIGHtime = 60 ns for 3.4 Mbps, bus loading = 100pF
= 120 ns for 3.4 Mbps, bus loading = 400pF
MIN_SCL_LOWtime = 160 ns for 3.4 Mbps, bus loading = 100pF
= 320 ns for 3.4 Mbps, bus loading = 400pF
and section 3.15.4.6 says that when IC_CLK_FREQ_OPTIMIZATION = 1,
MIN_SCL_HIGHtime = 60 ns for 3.4 Mbps, bus loading = 100pF
= 160 ns for 3.4 Mbps, bus loading = 400pF
MIN_SCL_LOWtime = 120 ns for 3.4 Mbps, bus loading = 100pF
= 320 ns for 3.4 Mbps, bus loading = 400pF
In order to calculate more accurate SCL high period count and low period
count for high speed mode, two hardware parameters IC_CAP_LOADING and
IC_CLK_FREQ_OPTIMIZATION must be considered together. Since there're no
registers controlliing these these two hardware parameters, users can
declare them in the device tree so that the driver can obtain them.
Signed-off-by: Michael Wu <michael.wu@kneron.us> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Michael Wu [Thu, 3 Oct 2024 11:15:23 +0000 (19:15 +0800)]
dt-bindings: i2c: snps,designware-i2c: declare bus capacitance and clk freq optimized
Since there are no registers controlling the hardware parameters
IC_CAP_LOADING and IC_CLK_FREQ_OPTIMIZATION, their values can only be
declared in the device tree.
snps,bus-capacitance-pf indicates the bus capacitance in picofarads (pF).
It affects the high and low pulse width of SCL line in high speed mode.
The legal values for this property are 100 and 400 only, and default
value is 100. This property corresponds to IC_CAP_LOADING.
snps,clk-freq-optimized indicates whether the hardware reduce its
internal clock frequency by reducing the internal latency required to
generate the high period and low period of SCL line. This property
corresponds to IC_CLK_FREQ_OPTIMIZATION.
The driver can calculate the high period count and low period count of
SCL line for high speed mode based on these two properties.
Signed-off-by: Michael Wu <michael.wu@kneron.us> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Théo Lebrun [Wed, 9 Oct 2024 14:01:11 +0000 (16:01 +0200)]
i2c: nomadik: fix BRCR computation
Current BRCR computation is:
brcr = floor(i2cclk / (clkfreq * div))
With brcr: "baud rate counter", an internal clock divider,
and i2cclk: input clock rate (24MHz, 38.4MHz or 48MHz),
and clkfreq: desired bus rate,
and div: speed-mode dependent divider (2 for standard, 3 otherwise).
Assume i2cclk=48MHz, clkfreq=3.4MHz, div=3,
then brcr = floor(48MHz / (3.4MHz * 3)) = 4
and resulting bus rate = 48MHz / (4 * 3) = 4MHz
Assume i2cclk=38.4MHz, clkfreq=1.0MHz, div=3,
then brcr = floor(38.4MHz / (1.0MHz * 3)) = 12
and resulting bus rate = 38.4MHz / (12 * 3) = 1066kHz
The current computation means we always pick the smallest divider that
gives a bus rate above target. We should instead pick the largest
divider that gives a bus rate below target, using:
brcr = floor(i2cclk / (clkfreq * div)) + 1
If we redo the above examples:
Assume i2cclk=48MHz, clkfreq=3.4MHz, div=3,
then brcr = floor(48MHz / (3.4MHz * 3)) + 1 = 5
and resulting bus rate = 48MHz / (5 * 3) = 3.2MHz
Assume i2cclk=38.4MHz, clkfreq=1.0MHz, div=3,
then brcr = floor(38.4MHz / (1.0MHz * 3)) + 1 = 13
and resulting bus rate = 38.4MHz / (13 * 3) = 985kHz
In kernel C code, floor(x) is DIV_ROUND_DOWN() and,
floor(x)+1 is DIV_ROUND_UP().
This is much less of an issue with slower bus rates (ie those currently
supported), because the gap from one divider to the next is much
smaller. It however keeps us from always using bus rates superior to
the target.
This fix is required for later on supporting faster bus rates:
I2C_FREQ_MODE_FAST_PLUS (1MHz) and I2C_FREQ_MODE_HIGH_SPEED (3.4MHz).
Théo Lebrun [Wed, 9 Oct 2024 14:01:10 +0000 (16:01 +0200)]
i2c: nomadik: support Mobileye EyeQ6H I2C controller
Add EyeQ6H support to the nmk-i2c AMBA driver. It shares the same quirk
as EyeQ5: the memory bus only supports 32-bit accesses. Avoid writeb()
and readb() by reusing the same `priv->has_32b_bus` flag.
It does NOT need to write speed-mode specific value into a register;
therefore it does not depend on the mobileye,olb DT property.
Théo Lebrun [Wed, 9 Oct 2024 14:01:09 +0000 (16:01 +0200)]
i2c: nomadik: switch from of_device_is_compatible() to of_match_device()
Compatible-specific behavior is implemented using a if-condition on the
return value from of_device_is_compatible(), from probe. It does not
scale well when compatible number increases. Switch to using a match
table and a call to of_match_device().
We DO NOT attach a .of_match_table field to our amba driver, as we do
not use the table to match our driver to devices.
Sort probe variable declarations in reverse christmas tree to try and
introduce some logic into the ordering.
Théo Lebrun [Wed, 9 Oct 2024 14:01:08 +0000 (16:01 +0200)]
dt-bindings: i2c: nomadik: support 400kHz < clock-frequency <= 3.4MHz
Hardware is not limited to 400kHz, its documentation does mention how to
configure it for high-speed (a specific Speed-Mode enum value and
a different bus rate clock divider register to be used).
After EyeQ5, it is time for Mobileye EyeQ6H to reuse the Nomadik I2C
controller. Add a specific compatible because its HW integration is
slightly different from EyeQ5.
Do NOT add an example as it looks like EyeQ5 from a DT standpoint
(without the mobileye,olb property).
Yoshihiro Furudera [Thu, 24 Oct 2024 07:15:53 +0000 (07:15 +0000)]
i2c: designware: Add ACPI HID for DWAPB I2C controller on FUJITSU-MONAKA
Enable DWAPB I2C controller support on FUJITSU-MONAKA.
This will be used in the FUJITSU-MONAKA server scheduled
for shipment in 2027.
The DSDT information obtained when verified using an
in-house simulator is presented below.
Device (SMB0)
{
Name (_HID, "FUJI200B") // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
...
Name (_CRS, ResourceTemplate ()
{
Memory32Fixed (ReadWrite,
0x2A4B0000, // Address Base
0x00010000, // Address Length
)
Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, ,, )
{
0x00000159,
}
})
...
}
The expression SMB0 is used to indicate SMBus HC#0,
a string of up to four characters.
Created the SMB0 object according to the following
specifications:
ACPI Specification
13.2. Accessing the SMBus from ASL Code
https://uefi.org/htmlspecs/ACPI_Spec_6_4_html/13_ACPI_System_Mgmt_Bus_Interface_Spec/accessing-the-smbus-from-asl-code.html
IPMI Specification
Example 4: SSIF Interface(P574)
https://www.intel.co.jp/content/www/jp/ja/products/docs/servers/ipmi/ipmi-second-gen-interface-spec-v2-rev1-1.html
Signed-off-by: Yoshihiro Furudera <fj5100bi@fujitsu.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Linus Torvalds [Sun, 24 Nov 2024 00:00:50 +0000 (16:00 -0800)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"The biggest change here is eliminating the awful idea that KVM had of
essentially guessing which pfns are refcounted pages.
The reason to do so was that KVM needs to map both non-refcounted
pages (for example BARs of VFIO devices) and VM_PFNMAP/VM_MIXMEDMAP
VMAs that contain refcounted pages.
However, the result was security issues in the past, and more recently
the inability to map VM_IO and VM_PFNMAP memory that _is_ backed by
struct page but is not refcounted. In particular this broke virtio-gpu
blob resources (which directly map host graphics buffers into the
guest as "vram" for the virtio-gpu device) with the amdgpu driver,
because amdgpu allocates non-compound higher order pages and the tail
pages could not be mapped into KVM.
This requires adjusting all uses of struct page in the
per-architecture code, to always work on the pfn whenever possible.
The large series that did this, from David Stevens and Sean
Christopherson, also cleaned up substantially the set of functions
that provided arch code with the pfn for a host virtual addresses.
The previous maze of twisty little passages, all different, is
replaced by five functions (__gfn_to_page, __kvm_faultin_pfn, the
non-__ versions of these two, and kvm_prefetch_pages) saving almost
200 lines of code.
ARM:
- Support for stage-1 permission indirection (FEAT_S1PIE) and
permission overlays (FEAT_S1POE), including nested virt + the
emulated page table walker
- Introduce PSCI SYSTEM_OFF2 support to KVM + client driver. This
call was introduced in PSCIv1.3 as a mechanism to request
hibernation, similar to the S4 state in ACPI
- Explicitly trap + hide FEAT_MPAM (QoS controls) from KVM guests. As
part of it, introduce trivial initialization of the host's MPAM
context so KVM can use the corresponding traps
- PMU support under nested virtualization, honoring the guest
hypervisor's trap configuration and event filtering when running a
nested guest
- Fixes to vgic ITS serialization where stale device/interrupt table
entries are not zeroed when the mapping is invalidated by the VM
- Avoid emulated MMIO completion if userspace has requested
synchronous external abort injection
- Various fixes and cleanups affecting pKVM, vCPU initialization, and
selftests
LoongArch:
- Add iocsr and mmio bus simulation in kernel.
- Add in-kernel interrupt controller emulation.
- Add support for virtualization extensions to the eiointc irqchip.
PPC:
- Drop lingering and utterly obsolete references to PPC970 KVM, which
was removed 10 years ago.
- Fix incorrect documentation references to non-existing ioctls
RISC-V:
- Accelerate KVM RISC-V when running as a guest
- Perf support to collect KVM guest statistics from host side
s390:
- New selftests: more ucontrol selftests and CPU model sanity checks
- Support for the gen17 CPU model
- List registers supported by KVM_GET/SET_ONE_REG in the
documentation
x86:
- Cleanup KVM's handling of Accessed and Dirty bits to dedup code,
improve documentation, harden against unexpected changes.
Even if the hardware A/D tracking is disabled, it is possible to
use the hardware-defined A/D bits to track if a PFN is Accessed
and/or Dirty, and that removes a lot of special cases.
- Elide TLB flushes when aging secondary PTEs, as has been done in
x86's primary MMU for over 10 years.
- Recover huge pages in-place in the TDP MMU when dirty page logging
is toggled off, instead of zapping them and waiting until the page
is re-accessed to create a huge mapping. This reduces vCPU jitter.
- Batch TLB flushes when dirty page logging is toggled off. This
reduces the time it takes to disable dirty logging by ~3x.
- Remove the shrinker that was (poorly) attempting to reclaim shadow
page tables in low-memory situations.
- Clean up and optimize KVM's handling of writes to
MSR_IA32_APICBASE.
- Advertise CPUIDs for new instructions in Clearwater Forest
- Quirk KVM's misguided behavior of initialized certain feature MSRs
to their maximum supported feature set, which can result in KVM
creating invalid vCPU state. E.g. initializing PERF_CAPABILITIES to
a non-zero value results in the vCPU having invalid state if
userspace hides PDCM from the guest, which in turn can lead to
save/restore failures.
- Fix KVM's handling of non-canonical checks for vCPUs that support
LA57 to better follow the "architecture", in quotes because the
actual behavior is poorly documented. E.g. most MSR writes and
descriptor table loads ignore CR4.LA57 and operate purely on
whether the CPU supports LA57.
- Bypass the register cache when querying CPL from kvm_sched_out(),
as filling the cache from IRQ context is generally unsafe; harden
the cache accessors to try to prevent similar issues from occuring
in the future. The issue that triggered this change was already
fixed in 6.12, but was still kinda latent.
- Advertise AMD_IBPB_RET to userspace, and fix a related bug where
KVM over-advertises SPEC_CTRL when trying to support cross-vendor
VMs.
- Minor cleanups
- Switch hugepage recovery thread to use vhost_task.
These kthreads can consume significant amounts of CPU time on
behalf of a VM or in response to how the VM behaves (for example
how it accesses its memory); therefore KVM tried to place the
thread in the VM's cgroups and charge the CPU time consumed by that
work to the VM's container.
However the kthreads did not process SIGSTOP/SIGCONT, and therefore
cgroups which had KVM instances inside could not complete freezing.
Fix this by replacing the kthread with a PF_USER_WORKER thread, via
the vhost_task abstraction. Another 100+ lines removed, with
generally better behavior too like having these threads properly
parented in the process tree.
- Revert a workaround for an old CPU erratum (Nehalem/Westmere) that
didn't really work; there was really nothing to work around anyway:
the broken patch was meant to fix nested virtualization, but the
PERF_GLOBAL_CTRL MSR is virtualized and therefore unaffected by the
erratum.
- Fix 6.12 regression where CONFIG_KVM will be built as a module even
if asked to be builtin, as long as neither KVM_INTEL nor KVM_AMD is
'y'.
x86 selftests:
- x86 selftests can now use AVX.
Documentation:
- Use rST internal links
- Reorganize the introduction to the API document
Generic:
- Protect vcpu->pid accesses outside of vcpu->mutex with a rwlock
instead of RCU, so that running a vCPU on a different task doesn't
encounter long due to having to wait for all CPUs become quiescent.
In general both reads and writes are rare, but userspace that
supports confidential computing is introducing the use of "helper"
vCPUs that may jump from one host processor to another. Those will
be very happy to trigger a synchronize_rcu(), and the effect on
performance is quite the disaster"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (298 commits)
KVM: x86: Break CONFIG_KVM_X86's direct dependency on KVM_INTEL || KVM_AMD
KVM: x86: add back X86_LOCAL_APIC dependency
Revert "KVM: VMX: Move LOAD_IA32_PERF_GLOBAL_CTRL errata handling out of setup_vmcs_config()"
KVM: x86: switch hugepage recovery thread to vhost_task
KVM: x86: expose MSR_PLATFORM_INFO as a feature MSR
x86: KVM: Advertise CPUIDs for new instructions in Clearwater Forest
Documentation: KVM: fix malformed table
irqchip/loongson-eiointc: Add virt extension support
LoongArch: KVM: Add irqfd support
LoongArch: KVM: Add PCHPIC user mode read and write functions
LoongArch: KVM: Add PCHPIC read and write functions
LoongArch: KVM: Add PCHPIC device support
LoongArch: KVM: Add EIOINTC user mode read and write functions
LoongArch: KVM: Add EIOINTC read and write functions
LoongArch: KVM: Add EIOINTC device support
LoongArch: KVM: Add IPI user mode read and write function
LoongArch: KVM: Add IPI read and write function
LoongArch: KVM: Add IPI device support
LoongArch: KVM: Add iocsr and mmio bus simulation in kernel
KVM: arm64: Pass on SVE mapping failures
...
Linus Torvalds [Sat, 23 Nov 2024 18:44:31 +0000 (10:44 -0800)]
Merge tag 'powerpc-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Rework kfence support for the HPT MMU to work on systems with >= 16TB
of RAM.
- Remove the powerpc "maple" platform, used by the "Yellow Dog
Powerstation".
- Add support for DYNAMIC_FTRACE_WITH_CALL_OPS,
DYNAMIC_FTRACE_WITH_DIRECT_CALLS & BPF Trampolines.
- Add support for running KVM nested guests on Power11.
- Other small features, cleanups and fixes.
Thanks to Amit Machhiwal, Arnd Bergmann, Christophe Leroy, Costa
Shulyupin, David Hunter, David Wang, Disha Goel, Gautam Menghani, Geert
Uytterhoeven, Hari Bathini, Julia Lawall, Kajol Jain, Keith Packard,
Lukas Bulwahn, Madhavan Srinivasan, Markus Elfring, Michal Suchanek,
Ming Lei, Mukesh Kumar Chaurasiya, Nathan Chancellor, Naveen N Rao,
Nicholas Piggin, Nysal Jan K.A, Paulo Miguel Almeida, Pavithra Prakash,
Ritesh Harjani (IBM), Rob Herring (Arm), Sachin P Bappalige, Shen
Lichuan, Simon Horman, Sourabh Jain, Thomas Weißschuh, Thorsten Blum,
Thorsten Leemhuis, Venkat Rao Bagalkote, Zhang Zekun, and zhang jiao.
* tag 'powerpc-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (89 commits)
EDAC/powerpc: Remove PPC_MAPLE drivers
powerpc/perf: Add per-task/process monitoring to vpa_pmu driver
powerpc/kvm: Add vpa latency counters to kvm_vcpu_arch
docs: ABI: sysfs-bus-event_source-devices-vpa-pmu: Document sysfs event format entries for vpa_pmu
powerpc/perf: Add perf interface to expose vpa counters
MAINTAINERS: powerpc: Mark Maddy as "M"
powerpc/Makefile: Allow overriding CPP
powerpc-km82xx.c: replace of_node_put() with __free
ps3: Correct some typos in comments
powerpc/kexec: Fix return of uninitialized variable
macintosh: Use common error handling code in via_pmu_led_init()
powerpc/powermac: Use of_property_match_string() in pmac_has_backlight_type()
powerpc: remove dead config options for MPC85xx platform support
powerpc/xive: Use cpumask_intersects()
selftests/powerpc: Remove the path after initialization.
powerpc/xmon: symbol lookup length fixed
powerpc/ep8248e: Use %pa to format resource_size_t
powerpc/ps3: Reorganize kerneldoc parameter names
KVM: PPC: Book3S HV: Fix kmv -> kvm typo
powerpc/sstep: make emulate_vsx_load and emulate_vsx_store static
...
Linus Torvalds [Sat, 23 Nov 2024 17:58:07 +0000 (09:58 -0800)]
Merge tag 'mm-stable-2024-11-18-19-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- The series "zram: optimal post-processing target selection" from
Sergey Senozhatsky improves zram's post-processing selection
algorithm. This leads to improved memory savings.
- Wei Yang has gone to town on the mapletree code, contributing several
series which clean up the implementation:
- "refine mas_mab_cp()"
- "Reduce the space to be cleared for maple_big_node"
- "maple_tree: simplify mas_push_node()"
- "Following cleanup after introduce mas_wr_store_type()"
- "refine storing null"
- The series "selftests/mm: hugetlb_fault_after_madv improvements" from
David Hildenbrand fixes this selftest for s390.
- The series "introduce pte_offset_map_{ro|rw}_nolock()" from Qi Zheng
implements some rationaizations and cleanups in the page mapping
code.
- The series "mm: optimize shadow entries removal" from Shakeel Butt
optimizes the file truncation code by speeding up the handling of
shadow entries.
- The series "Remove PageKsm()" from Matthew Wilcox completes the
migration of this flag over to being a folio-based flag.
- The series "Unify hugetlb into arch_get_unmapped_area functions" from
Oscar Salvador implements a bunch of consolidations and cleanups in
the hugetlb code.
- The series "Do not shatter hugezeropage on wp-fault" from Dev Jain
takes away the wp-fault time practice of turning a huge zero page
into small pages. Instead we replace the whole thing with a THP. More
consistent cleaner and potentiall saves a large number of pagefaults.
- The series "percpu: Add a test case and fix for clang" from Andy
Shevchenko enhances and fixes the kernel's built in percpu test code.
- The series "mm/mremap: Remove extra vma tree walk" from Liam Howlett
optimizes mremap() by avoiding doing things which we didn't need to
do.
- The series "Improve the tmpfs large folio read performance" from
Baolin Wang teaches tmpfs to copy data into userspace at the folio
size rather than as individual pages. A 20% speedup was observed.
- The series "mm/damon/vaddr: Fix issue in
damon_va_evenly_split_region()" fro Zheng Yejian fixes DAMON
splitting.
- The series "memcg-v1: fully deprecate charge moving" from Shakeel
Butt removes the long-deprecated memcgv2 charge moving feature.
- The series "fix error handling in mmap_region() and refactor" from
Lorenzo Stoakes cleanup up some of the mmap() error handling and
addresses some potential performance issues.
- The series "x86/module: use large ROX pages for text allocations"
from Mike Rapoport teaches x86 to use large pages for
read-only-execute module text.
- The series "page allocation tag compression" from Suren Baghdasaryan
is followon maintenance work for the new page allocation profiling
feature.
- The series "page->index removals in mm" from Matthew Wilcox remove
most references to page->index in mm/. A slow march towards shrinking
struct page.
- The series "damon/{self,kunit}tests: minor fixups for DAMON debugfs
interface tests" from Andrew Paniakin performs maintenance work for
DAMON's self testing code.
- The series "mm: zswap swap-out of large folios" from Kanchana Sridhar
improves zswap's batching of compression and decompression. It is a
step along the way towards using Intel IAA hardware acceleration for
this zswap operation.
- The series "kasan: migrate the last module test to kunit" from
Sabyrzhan Tasbolatov completes the migration of the KASAN built-in
tests over to the KUnit framework.
- The series "implement lightweight guard pages" from Lorenzo Stoakes
permits userapace to place fault-generating guard pages within a
single VMA, rather than requiring that multiple VMAs be created for
this. Improved efficiencies for userspace memory allocators are
expected.
- The series "memcg: tracepoint for flushing stats" from JP Kobryn uses
tracepoints to provide increased visibility into memcg stats flushing
activity.
- The series "zram: IDLE flag handling fixes" from Sergey Senozhatsky
fixes a zram buglet which potentially affected performance.
- The series "mm: add more kernel parameters to control mTHP" from
Maíra Canal enhances our ability to control/configuremultisize THP
from the kernel boot command line.
- The series "kasan: few improvements on kunit tests" from Sabyrzhan
Tasbolatov has a couple of fixups for the KASAN KUnit tests.
- The series "mm/list_lru: Split list_lru lock into per-cgroup scope"
from Kairui Song optimizes list_lru memory utilization when lockdep
is enabled.
* tag 'mm-stable-2024-11-18-19-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (215 commits)
cma: enforce non-zero pageblock_order during cma_init_reserved_mem()
mm/kfence: add a new kunit test test_use_after_free_read_nofault()
zram: fix NULL pointer in comp_algorithm_show()
memcg/hugetlb: add hugeTLB counters to memcg
vmstat: call fold_vm_zone_numa_events() before show per zone NUMA event
mm: mmap_lock: check trace_mmap_lock_$type_enabled() instead of regcount
zram: ZRAM_DEF_COMP should depend on ZRAM
MAINTAINERS/MEMORY MANAGEMENT: add document files for mm
Docs/mm/damon: recommend academic papers to read and/or cite
mm: define general function pXd_init()
kmemleak: iommu/iova: fix transient kmemleak false positive
mm/list_lru: simplify the list_lru walk callback function
mm/list_lru: split the lock to per-cgroup scope
mm/list_lru: simplify reparenting and initial allocation
mm/list_lru: code clean up for reparenting
mm/list_lru: don't export list_lru_add
mm/list_lru: don't pass unnecessary key parameters
kasan: add kunit tests for kmalloc_track_caller, kmalloc_node_track_caller
kasan: change kasan_atomics kunit test as KUNIT_CASE_SLOW
kasan: use EXPORT_SYMBOL_IF_KUNIT to export symbols
...
The root cause is: it will update discard_max_bytes of mounted lvm
device to zero after creating snapshot on this lvm device, then,
__submit_discard_cmd() will pass parameter @nr_sects w/ zero value
to __blkdev_issue_discard(), it returns a NULL bio pointer, result
in panic.
This patch changes as below for fixing:
1. Let's drop all remained discards in f2fs_unfreeze() if snapshot
of lvm device is created.
2. Checking discard_max_bytes before submitting discard during
__submit_discard_cmd().
Cc: stable@vger.kernel.org Fixes: 35ec7d574884 ("f2fs: split discard command in prior to block layer") Reported-by: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219484 Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
As reported by Xiuhong, there will be a huge number of extent nodes
in extent tree, it may potentially cause:
- slab memory fragments
- extreme long time shrink on extent tree
- low mapping efficiency
Let's add a sysfs node to limit max read extent count for each inode,
by default, value of this threshold is 10240, it can be updated
according to user's requirement.
Reported-by: Xiuhong Wang <xiuhong.wang@unisoc.com> Closes: https://lore.kernel.org/linux-f2fs-devel/20241112110627.1314632-1-xiuhong.wang@unisoc.com/ Signed-off-by: Xiuhong Wang <xiuhong.wang@unisoc.com> Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com> Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Linus Torvalds [Sat, 23 Nov 2024 05:54:14 +0000 (21:54 -0800)]
Merge tag '6.13-rc-part1-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client updates from Steve French:
- Fix two SMB3.1.1 POSIX Extensions problems
- Fixes for special file handling (symlinks and FIFOs)
- Improve compounding
- Four cleanup patches
- Fix use after free in signing
- Add support for handling namespaces for reconnect related upcalls
(e.g. for DNS names resolution and auth)
- Fix various directory lease problems (directory entry caching),
including some important potential use after frees
* tag '6.13-rc-part1-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: prevent use-after-free due to open_cached_dir error paths
smb: Don't leak cfid when reconnect races with open_cached_dir
smb: client: handle max length for SMB symlinks
smb: client: get rid of bounds check in SMB2_ioctl_init()
smb: client: improve compound padding in encryption
smb3: request handle caching when caching directories
cifs: Recognize SFU char/block devices created by Windows NFS server on Windows Server <<2012
CIFS: New mount option for cifs.upcall namespace resolution
smb/client: Prevent error pointer dereference
fs/smb/client: implement chmod() for SMB3 POSIX Extensions
smb: cached directories can be more than root file handle
smb: client: fix use-after-free of signing key
smb: client: Use str_yes_no() helper function
smb: client: memcpy() with surrounding object base address
cifs: Remove pre-historic unused CIFSSMBCopy
Linus Torvalds [Sat, 23 Nov 2024 04:55:42 +0000 (20:55 -0800)]
Merge tag 'ovl-update-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs
Pull overlayfs updates from Amir Goldstein:
- Fix a syzbot reported NULL pointer deref with bfs lower layers
- Fix a copy up failure of large file from lower fuse fs
- Followup cleanup of backing_file API from Miklos
- Introduction and use of revert/override_creds_light() helpers, that
were suggested by Christian as a mitigation to cache line bouncing
and false sharing of fields in overlayfs creator_cred long lived
struct cred copy.
- Store up to two backing file references (upper and lower) in an
ovl_file container instead of storing a single backing file in
file->private_data.
This is used to avoid the practice of opening a short lived backing
file for the duration of some file operations and to avoid the
specialized use of FDPUT_FPUT in such occasions, that was getting in
the way of Al's fd_file() conversions.
* tag 'ovl-update-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs:
ovl: Filter invalid inodes with missing lookup function
ovl: convert ovl_real_fdget() callers to ovl_real_file()
ovl: convert ovl_real_fdget_path() callers to ovl_real_file_path()
ovl: store upper real file in ovl_file struct
ovl: allocate a container struct ovl_file for ovl private context
ovl: do not open non-data lower file for fsync
ovl: Optimize override/revert creds
ovl: pass an explicit reference of creators creds to callers
ovl: use wrapper ovl_revert_creds()
fs/backing-file: Convert to revert/override_creds_light()
cred: Add a light version of override/revert_creds()
backing-file: clean up the API
ovl: properly handle large files in ovl_security_fileattr
Linus Torvalds [Sat, 23 Nov 2024 04:50:55 +0000 (20:50 -0800)]
Merge tag 'unicode-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode
Pull unicode updates from Gabriel Krisman Bertazi:
- constify a read-only struct (Thomas Weißschuh)
- fix the error path of unicode_load, avoiding a possible kernel oops
if it fails to find the unicode module (André Almeida)
- documentation fix, updating a filename in the README (Gan Jie)
- add the link of my tree to MAINTAINERS (André Almeida)
* tag 'unicode-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode:
MAINTAINERS: Add Unicode tree
unicode: change the reference of database file
unicode: Fix utf8_load() error path
unicode: constify utf8 data table
Linus Torvalds [Sat, 23 Nov 2024 04:36:11 +0000 (20:36 -0800)]
Merge tag 'sysctl-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
Pull sysctl updates from Joel Granados:
"sysctl ctl_table constification:
- Constifying ctl_table structs prevents the modification of
proc_handler function pointers. All ctl_table struct arguments are
const qualified in the sysctl API in such a way that the ctl_table
arrays being defined elsewhere and passed through sysctl can be
constified one-by-one.
We kick the constification off by qualifying user_table in
kernel/ucount.c and expect all the ctl_tables to be constified in
the coming releases.
Misc fixes:
- Adjust comments in two places to better reflect the code
- Remove superfluous dput calls
- Remove Luis from sysctl maintainership
- Replace comments about holding a lock with calls to
lockdep_assert_held"
* tag 'sysctl-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl:
sysctl: Reduce dput(child) calls in proc_sys_fill_cache()
sysctl: Reorganize kerneldoc parameter names
ucounts: constify sysctl table user_table
sysctl: update comments to new registration APIs
MAINTAINERS: remove me from sysctl
sysctl: Convert locking comments to lockdep assertions
const_structs.checkpatch: add ctl_table
sysctl: make internal ctl_tables const
sysctl: allow registration of const struct ctl_table
sysctl: move internal interfaces to const struct ctl_table
bpf: Constify ctl_table argument of filter function
Linus Torvalds [Sat, 23 Nov 2024 04:03:57 +0000 (20:03 -0800)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"Seveal fixes scattered across the drivers and a few new features:
- Minor updates and bug fixes to hfi1, efa, iopob, bnxt, hns
- Force disassociate the userspace FD when hns does an async reset
- bnxt new features for optimized modify QP to skip certain stayes,
CQ coalescing, better debug dumping
- mlx5 new data placement ordering feature
- Faster destruction of mlx5 devx HW objects
- Improvements to RDMA CM mad handling"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (51 commits)
RDMA/bnxt_re: Correct the sequence of device suspend
RDMA/bnxt_re: Use the default mode of congestion control
RDMA/bnxt_re: Support different traffic class
IB/cm: Rework sending DREQ when destroying a cm_id
IB/cm: Do not hold reference on cm_id unless needed
IB/cm: Explicitly mark if a response MAD is a retransmission
RDMA/mlx5: Move events notifier registration to be after device registration
RDMA/bnxt_re: Cache MSIx info to a local structure
RDMA/bnxt_re: Refurbish CQ to NQ hash calculation
RDMA/bnxt_re: Refactor NQ allocation
RDMA/bnxt_re: Fail probe early when not enough MSI-x vectors are reserved
RDMA/hns: Fix different dgids mapping to the same dip_idx
RDMA/bnxt_re: Add set_func_resources support for P5/P7 adapters
RDMA/bnxt_re: Enhance RoCE SRIOV resource configuration design
bnxt_en: Add support for RoCE sriov configuration
RDMA/hns: Fix NULL pointer derefernce in hns_roce_map_mr_sg()
RDMA/hns: Fix out-of-order issue of requester when setting FENCE
RDMA/nldev: Add IB device and net device rename events
RDMA/mlx5: Add implementation for ufile_hw_cleanup device operation
RDMA/core: Move ib_uverbs_file struct to uverbs_types.h
...
Linus Torvalds [Sat, 23 Nov 2024 03:55:10 +0000 (19:55 -0800)]
Merge tag 'iommu-updates-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Joerg Roedel:
"Core Updates:
- Convert call-sites using iommu_domain_alloc() to more specific
versions and remove function
- Introduce iommu_paging_domain_alloc_flags()
- Extend support for allocating PASID-capable domains to more drivers
- Remove iommu_present()
- Some smaller improvements
New IOMMU driver for RISC-V
Intel VT-d Updates:
- Add domain_alloc_paging support
- Enable user space IOPFs in non-PASID and non-svm cases
- Small code refactoring and cleanups
- Add domain replacement support for pasid
AMD-Vi Updates:
- Adapt to iommu_paging_domain_alloc_flags() interface and alloc V2
page-tables by default
- Replace custom domain ID allocator with IDA allocator
- Add ops->release_domain() support
- Other improvements to device attach and domain allocation code
paths
ARM-SMMU Updates:
- SMMUv2:
- Return -EPROBE_DEFER for client devices probing before their
SMMU
- Devicetree binding updates for Qualcomm MMU-500 implementations
- SMMUv3:
- Minor fixes and cleanup for NVIDIA's virtual command queue
driver
- IO-PGTable:
- Fix indexing of concatenated PGDs and extend selftest coverage
- Remove unused block-splitting support
S390 IOMMU:
- Implement support for blocking domain
Mediatek IOMMU:
- Enable 35-bit physical address support for mt8186
OMAP IOMMU driver:
- Adapt to recent IOMMU core changes and unbreak driver"
* tag 'iommu-updates-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (92 commits)
iommu/tegra241-cmdqv: Fix alignment failure at max_n_shift
iommu: Make set_dev_pasid op support domain replacement
iommu/arm-smmu-v3: Make set_dev_pasid() op support replace
iommu/vt-d: Add set_dev_pasid callback for nested domain
iommu/vt-d: Make identity_domain_set_dev_pasid() to handle domain replacement
iommu/vt-d: Make intel_svm_set_dev_pasid() support domain replacement
iommu/vt-d: Limit intel_iommu_set_dev_pasid() for paging domain
iommu/vt-d: Make intel_iommu_set_dev_pasid() to handle domain replacement
iommu/vt-d: Add iommu_domain_did() to get did
iommu/vt-d: Consolidate the struct dev_pasid_info add/remove
iommu/vt-d: Add pasid replace helpers
iommu/vt-d: Refactor the pasid setup helpers
iommu/vt-d: Add a helper to flush cache for updating present pasid entry
iommu: Pass old domain to set_dev_pasid op
iommu/iova: Fix typo 'adderss'
iommu: Add a kdoc to iommu_unmap()
iommu/io-pgtable-arm-v7s: Remove split on unmap behavior
iommu/io-pgtable-arm: Remove split on unmap behavior
iommu/vt-d: Drain PRQs when domain removed from RID
iommu/vt-d: Drop pasid requirement for prq initialization
...
Linus Torvalds [Sat, 23 Nov 2024 03:43:18 +0000 (19:43 -0800)]
Merge tag 'thermal-6.13-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more thermal control updates from Rafael Wysocki:
"These update a few thermal drivers used on ARM platforms and thermal
tools:
- Add SAR2130P compatible to DT bindings in the QCom Tsens driver
(Dmitry Baryshkov)
- Add static annotation to arrays describing platform sensors in the
LVTS Mediatek driver (Colin Ian King)
- Switch back to struct platform_driver::remove() from the previous
callbacks prototype rework (Uwe Kleine-König)
- Add MSM8937 compatible to DT bindings and its support in the QCom
Tsens driver (Barnabás Czémán)
- Remove a pointless sign test on an unsigned value in
k3_bgp_read_temp() in the k3_j72xx_bandgap driver (Rex Nie)
- Fix a pointer reference loss when realloc() fails in the thermal
library (Zhang Jiao)"
* tag 'thermal-6.13-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
tools/thermal: Fix common realloc mistake
thermal/drivers/k3_j72xx_bandgap: Simplify code in k3_bgp_read_temp()
thermal/drivers/qcom/tsens-v1: Add support for MSM8937 tsens
dt-bindings: thermal: tsens: Add MSM8937
thermal: Switch back to struct platform_driver::remove()
thermal/drivers/mediatek/lvts_thermal: Make read-only arrays static const
dt-bindings: thermal: qcom-tsens: Add SAR2130P compatible
Linus Torvalds [Sat, 23 Nov 2024 03:29:48 +0000 (19:29 -0800)]
Merge tag 'pm-6.13-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These mostly are updates of cpufreq drivers used on ARM platforms plus
one new DT-based cpufreq driver for virtualized guests and two cpuidle
changes that should not make any difference on systems currently in
the field, but will be needed for future development:
- Add virtual cpufreq driver for guest kernels (David Dai)
- Minor cleanup to various cpufreq drivers (Andy Shevchenko, Dhruva
Gole, Jie Zhan, Jinjie Ruan, Shuosheng Huang, Sibi Sankar, and Yuan
Can)
Linus Torvalds [Sat, 23 Nov 2024 01:25:32 +0000 (17:25 -0800)]
Merge tag 'tpmdd-next-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull TPM updates from Jarkko Sakkinen:
"Only some minor tweaks"
* tag 'tpmdd-next-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm: atmel: Drop PPC64 specific MMIO setup
char: tpm: cr50: Add new device/vendor ID 0x50666666
char: tpm: cr50: Move i2c locking to request/relinquish locality ops
char: tpm: cr50: Use generic request/relinquish locality ops
tpm: ibmvtpm: Set TPM_OPS_AUTO_STARTUP flag on driver
Linus Torvalds [Sat, 23 Nov 2024 01:06:59 +0000 (17:06 -0800)]
Merge tag 'mtd/for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Miquel Raynal:
"MTD device changes:
- switch platform_driver back to remove()
- misc fixes
SPI-NAND changes:
- a load of fixes to Winbond manufacturer driver
- structure constification
Raw NAND changes:
- improve the power management of the GPMI driver
- Davinci driver clean-ups
- fix leak in the Atmel driver
- fix some typos in the core
SPI NOR changes:
- Introduce byte swap support for 8D-8D-8D mode and a user for it:
macronix.
SPI NOR flashes may swap the bytes on a 16-bit boundary when
configured in Octal DTR mode. For such cases the byte order is
propagated through SPI MEM to the SPI controllers so that the
controllers swap the bytes back at runtime. This avoids breaking
the boot sequence because of the endianness problems that appear
when the bootloaders use 1-1-1 and the kernel uses 8D-8D-8D with
byte swap support. Along with the SPI MEM byte swap support we
queue a patch for the SPI MXIC controller that swaps the bytes back
at runtime"
* tag 'mtd/for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (25 commits)
mtd: spi-nor: core: replace dummy buswidth from addr to data
mtd: spi-nor: winbond: add "w/ and w/o SFDP" comment
mtd: spi-nor: spansion: Use nor->addr_nbytes in octal DTR mode in RD_ANY_REG_OP
mtd: Switch back to struct platform_driver::remove()
mtd: cfi_cmdset_0002: remove redundant assignment to variable ret
mtd: spinand: Constify struct nand_ecc_engine_ops
MAINTAINERS: add mailing list for GPMI NAND driver
mtd: spinand: winbond: Sort the devices
mtd: spinand: winbond: Ignore the last ID characters
mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information
mtd: spinand: winbond: Fix 512GW and 02JW OOB layout
mtd: nand: raw: gpmi: improve power management handling
mtd: nand: raw: gpmi: switch to SYSTEM_SLEEP_PM_OPS
mtd: rawnand: davinci: use generic device property helpers
mtd: rawnand: davinci: break the line correctly
mtd: rawnand: davinci: order headers alphabetically
mtd: rawnand: atmel: Fix possible memory leak
mtd: rawnand: Correct multiple typos in comments
mtd: hyperbus: rpc-if: Add missing MODULE_DEVICE_TABLE
mtd: spi-nor: add support for Macronix Octal flash
...
Linus Torvalds [Sat, 23 Nov 2024 01:02:25 +0000 (17:02 -0800)]
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"The core framework gained a clk provider helper, a clk consumer
helper, and some unit tests for the assigned clk rates feature in
DeviceTree. On the vendor driver side, we gained a whole pile of SoC
driver support detailed below. The majority in the diffstat is
Qualcomm, but there's also quite a few Samsung and Mediatek clk driver
additions in here as well. The top vendors is quite common, but the
sheer amount of new drivers is uncommon, so I'm anticipating a larger
number of fixes for clk drivers this cycle.
Core:
- devm_clk_bulk_get_all_enabled() to return number of clks acquired
- devm_clk_hw_register_gate_parent_hw() helper to modernize drivers
- KUnit tests for clk-assigned-rates{,-u64}
New Drivers:
- Marvell PXA1908 SoC clks
- Mobileye EyeQ5, EyeQ6L and EyeQ6H clk driver
- TWL6030 clk driver
- Nuvoton Arbel BMC NPCM8XX SoC clks
- MediaTek MT6735 SoC clks
- MediaTek MT7620, MT7628 and MT7688 MMC clks
- Add a driver for gated fixed rate clocks
- Global clock controllers for Qualcomm QCS8300 and IPQ5424 SoCs
- Camera, display and video clock controllers for Qualcomm SA8775P
SoCs
- Global, display, GPU, TCSR, and RPMh clock controllers for Qualcomm
SAR2130P
- Global, camera, display, GPU, and video clock controllers for
Qualcomm SM8475 SoCs
- RTC power domain and Battery Backup Function (VBATTB) clock support
for the Renesas RZ/G3S SoC
- Qualcomm IPQ9574 alpha PLLs
- Support for i.MX91 CCM in the i.MX93 driver
- Microchip LAN969X SoC clks
- Cortex-A55 core clocks and Interrupt Control Unit (ICU) clock and
reset on Renesas RZ/V2H(P)
- Samsung ExynosAutov920 clk drivers for PERIC1, MISC, HSI0 and HSI1
- Samsung Exynos8895 clk drivers for FSYS0/1, PERIC0/1, PERIS and TOP
Updates:
- Convert more clk bindings to YAML
- Various clk driver cleanups: NULL checks, add const, etc.
- Remove END/NUM #defines that count number of clks in various
binding headers
- Continue moving reset drivers to drivers/reset via auxiliary bus"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (162 commits)
clk: clk-loongson2: Fix potential buffer overflow in flexible-array member access
clk: Fix invalid execution of clk_set_rate
clk: clk-loongson2: Fix memory corruption bug in struct loongson2_clk_provider
clk: lan966x: make it selectable for ARCH_LAN969X
clk: eyeq: add EyeQ6H west fixed factor clocks
clk: eyeq: add EyeQ6H central fixed factor clocks
clk: eyeq: add EyeQ5 fixed factor clocks
clk: eyeq: add fixed factor clocks infrastructure
clk: eyeq: require clock index with phandle in all cases
clk: fixed-factor: add clk_hw_register_fixed_factor_index() function
dt-bindings: clock: eyeq: add more Mobileye EyeQ5/EyeQ6H clocks
dt-bindings: soc: mobileye: set `#clock-cells = <1>` for all compatibles
clk: clk-axi-clkgen: make sure to enable the AXI bus clock
dt-bindings: clock: axi-clkgen: include AXI clk
clk: mmp: Add Marvell PXA1908 MPMU driver
clk: mmp: Add Marvell PXA1908 APMU driver
clk: mmp: Add Marvell PXA1908 APBCP driver
clk: mmp: Add Marvell PXA1908 APBC driver
dt-bindings: clock: Add Marvell PXA1908 clock bindings
clk: mmp: Switch to use struct u32_fract instead of custom one
...
Linus Torvalds [Sat, 23 Nov 2024 00:29:57 +0000 (16:29 -0800)]
Merge tag 'backlight-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
- Improve handling of LCD power states and interactions with the fbdev
subsystem
- Introduce new LCD_POWER_ constants to decouple the LCD subsystem from
fbdev
- Update several drivers to use the new LCD_POWER_ constants
- Clarify the semantics of the lcd_ops.controls_device callback
- Remove unnecessary includes and dependencies
- Remove unused notifier functionality
- Simplify code with scoped for-each loops
- Fix module autoloading for the ktz8866 driver
- Update device tree bindings to yaml format
- Minor cleanups and improvements in various drivers
* tag 'backlight-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (33 commits)
MAINTAINERS: Use Daniel Thompson's korg address for Backlight work
dt-bindings: backlight: Convert zii,rave-sp-backlight.txt to yaml
backlight: Remove notifier
backlight: ktz8866: Fix module autoloading
backlight: 88pm860x_bl: Simplify with scoped for each OF child loop
backlight: lcd: Do not include <linux/fb.h> in lcd header
backlight: lcd: Remove struct fb_videomode from set_mode callback
backlight: lcd: Replace check_fb with controls_device
HID: picoLCD: Replace check_fb in favor of struct fb_info.lcd_dev
fbdev: omap: Use lcd power constants
fbdev: imxfb: Use lcd power constants
fbdev: imxfb: Replace check_fb in favor of struct fb_info.lcd_dev
fbdev: clps711x-fb: Use lcd power constants
fbdev: clps711x-fb: Replace check_fb in favor of struct fb_info.lcd_dev
backlight: tdo24m: Use lcd power constants
backlight: platform_lcd: Use lcd power constants
backlight: platform_lcd: Remove match_fb from struct plat_lcd_data
backlight: platform_lcd: Remove include statement for <linux/backlight.h>
backlight: otm3225a: Use lcd power constants
backlight: ltv350qv: Use lcd power constants
...
Linus Torvalds [Sat, 23 Nov 2024 00:19:47 +0000 (16:19 -0800)]
Merge tag 'mfd-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
- Several drivers, including atmel-flexcom/rk8xx-core, palmas, and
tps65010, have undergone minor code improvements to enhance
consistency and fix race conditions.
- The syscon driver now utilizes the regmap max_register_is_0
capability for consistent register map configuration across syscons
of all sizes.
- New device support has been added for QCS8300, qcs615, SA8255p, and
samsung,s2dos05, expanding the range of compatible hardware.
- The cros_ec driver now supports loading cros_ec_ucsi on supported ECs
and avoids loading the charger with UCSI, streamlining functionality.
- The bd96801 driver now utilizes the more modern maple tree register
cache, improving performance.
- The da9052-spi driver has undergone a fix to change the read-mask to
write-mask, preventing potential issues.
- Unused declarations in max77693 have been removed, and support for
samsung,s2dos05 has been added, enhancing code clarity and device
compatibility.
- Error handling in cs42l43 has been fixed to avoid unbalanced
regulator put and ensure proper synchronization during driver
removal.
- The wcd934x driver now uses MODULE_DEVICE_TABLE() instead of
MODULE_ALIAS(), improving code consistency.
- Documentation for qcom,tcsr, syscon, and atmel-smc has been updated
and reorganized for better clarity and maintainability.
- The intel_soc_pmic_bxtwc driver has undergone significant
improvements, including the use of IRQ domains for various devices,
fixing IRQ domain names duplication, and code refactoring for better
consistency and maintainability.
- The ipaq-micro driver has received a fix for a missing break
statement in the default case, enhancing code robustness.
- Support for the AXP323 PMIC has been added to the axp20x driver,
along with ensuring a clear relationship between IDs and model names,
and allowing multiple regulators, broadening hardware compatibility.
- The cs42l43 driver now disables IRQs during suspend for improved
power management.
- The adp5585 driver has reduced its dependencies by dropping the
obsolete dependency on COMPILE_TEST.
- Initial support for the MT6328 PMIC has been added to the mt6397
driver, expanding the range of supported hardware.
- The rtc-bd70528 driver has been simplified by dropping the IC name
from IRQ, improving code readability.
- Documentation for qcom,spmi-pmic, ti,twl, and zii,rave-sp has been
updated to enhance clarity and incorporate new features.
- The rt5033 driver has received a fix for a missing
regmap_del_irq_chip() in the error handling path.
- New device support has been added for MSM8917, and the
intel_soc_pmic_crc driver now supports non-ACPI instantiated
i2c_client.
- The 88pm886 driver has added support for the RTC cell, and the tqmx86
driver has improved its GPIO IRQ setup and added I2C IRQ support,
increasing functionality.
- The sprd,sc2731 DT schema has been updated and converted to YAML
format for better readability and maintainability.
* tag 'mfd-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (62 commits)
dt-bindings: mfd: bd71828: Use charger resistor in mOhm instead of MOhm
dt-bindings: mfd: sprd,sc2731: Convert to YAML
mfd: tqmx86: Add I2C IRQ support
mfd: tqmx86: Make IRQ setup errors non-fatal
mfd: tqmx86: Refactor GPIO IRQ setup
mfd: tqmx86: Improve gpio_irq module parameter description
mfd: tqmx86: Add board definitions for TQMx120UC, TQMx130UC and TQMxE41S
mfd: 88pm886: Add the RTC cell
dt-bindings: mfd: Add Realtek RTL9300 switch peripherals
mfd: intel_soc_pmic_crc: Add support for non ACPI instantiated i2c_client
mfd: intel_soc_pmic_*: Consistently use filename as driver name
dt-bindings: mfd: qcom,tcsr: Add compatible for MSM8917
mfd: rt5033: Fix missing regmap_del_irq_chip()
mfd: cgbc-core: Fix error handling paths in cgbc_init_device()
dt-bindings: mfd: aspeed: Support for AST2700
mfd: Switch back to struct platform_driver::remove()
dt-bindings: mfd: qcom,spmi-pmic: Document PMICs added in SM8750
mfd: rtc: bd7xxxx Drop IC name from IRQ
mfd: mt6397: Add initial support for MT6328
mfd: adp5585: Drop obsolete dependency on COMPILE_TEST
...
Ian Rogers [Thu, 21 Nov 2024 00:09:55 +0000 (16:09 -0800)]
perf tests: Fix hwmon parsing with PMU name test
Incorrectly the hwmon with PMU name test didn't pass "true". Fix and
address issue with hwmon_pmu__config_terms needing to load events - a
load bearing assert fired. Also fix missing list deletion when putting
the hwmon test PMU and lower some debug warnings to make the hwmon PMU
less spammy in verbose mode.
The failure depends on the kernel .config file. Some configurations
always work fine, some do not. The ftrace profile test mostly fails,
because the ring buffer was not large enough, and some lines
(especially the interesting ones with nanosleep in it) where dropped.
To achieve success for all tested kernel configurations, enlarge
the buffer to store the traces completely without wrapping.
The default buffer size is too small for all kernel configurations.
Set the buffer size of for the ftrace profile test to 16 MB.
Output after:
# ./perf test ftrace
79: perf ftrace tests : Ok
#
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: agordeev@linux.ibm.com Cc: gor@linux.ibm.com Cc: hca@linux.ibm.com Cc: sumanthk@linux.ibm.com Link: https://lore.kernel.org/r/20241119064856.641446-1-tmricht@linux.ibm.com Suggested-by: Sven Schnelle <svens@linux.ibm.com> Suggested-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Linus Torvalds [Fri, 22 Nov 2024 21:27:01 +0000 (13:27 -0800)]
Merge tag 'trace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing updates from Steven Rostedt:
- Addition of faultable tracepoints
There's a tracepoint attached to both a system call entry and exit.
This location is known to allow page faults. The tracepoints are
called under an rcu_read_lock() which does not allow faults that can
sleep. This limits the ability of tracepoint handlers to page fault
in user space system call parameters. Now these tracepoints have been
made "faultable", allowing the callbacks to fault in user space
parameters and record them.
Note, only the infrastructure has been implemented. The consumers
(perf, ftrace, BPF) now need to have their code modified to allow
faults.
- Fix up of BPF code for the tracepoint faultable logic
- Update tracepoints to use the new static branch API
- Remove trace_*_rcuidle() variants and the SRCU protection they used
- Remove unused TRACE_EVENT_FL_FILTERED logic
- Replace strncpy() with strscpy() and memcpy()
- Use replace per_cpu_ptr(smp_processor_id()) with this_cpu_ptr()
- Fix perf events to not duplicate samples when tracing is enabled
- Replace atomic64_add_return(1, counter) with
atomic64_inc_return(counter)
- Make stack trace buffer 4K instead of PAGE_SIZE
- Remove TRACE_FLAG_IRQS_NOSUPPORT flag as it was never used
- Get the true return address for function tracer when function graph
tracer is also running.
When function_graph trace is running along with function tracer, the
parent function of the function tracer sometimes is
"return_to_handler", which is the function graph trampoline to record
the exit of the function. Use existing logic that calls into the
fgraph infrastructure to find the real return address.
- Remove (un)regfunc pointers out of tracepoint structure
- Added last minute bug fix for setting pending modules in stack
function filter.
* tag 'trace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (31 commits)
ftrace: Fix regression with module command in stack_trace_filter
tracing: Fix function name for trampoline
ftrace: Get the true parent ip for function tracer
tracing: Remove redundant check on field->field in histograms
bpf: ensure RCU Tasks Trace GP for sleepable raw tracepoint BPF links
bpf: decouple BPF link/attach hook and BPF program sleepable semantics
bpf: put bpf_link's program when link is safe to be deallocated
tracing: Replace strncpy() with strscpy() when copying comm
tracing: Add might_fault() check in __DECLARE_TRACE_SYSCALL
tracing: Fix syscall tracepoint use-after-free
tracing: Introduce tracepoint_is_faultable()
tracing: Introduce tracepoint extended structure
tracing: Remove TRACE_FLAG_IRQS_NOSUPPORT
tracing: Replace multiple deprecated strncpy with memcpy
tracing: Make percpu stack trace buffer invariant to PAGE_SIZE
tracing: Use atomic64_inc_return() in trace_clock_counter()
trace/trace_event_perf: remove duplicate samples on the first tracepoint event
tracing/bpf: Add might_fault check to syscall probes
tracing/perf: Add might_fault check to syscall probes
tracing/ftrace: Add might_fault check to syscall probes
...
Linus Torvalds [Fri, 22 Nov 2024 21:24:22 +0000 (13:24 -0800)]
Merge tag 'trace-tools-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing tools updates from Steven Rostedt:
- Add ':' to getopt option 'trace-buffer-size' in timerlat_hist for
consistency
- Remove unused sched_getattr define
- Rename sched_setattr() helper to syscall_sched_setattr() to avoid
conflicts
- Update counters to long from int to avoid overflow
- Add libcpupower dependency detection
- Add --deepest-idle-state to timerlat to limit deep idle sleeps
- Other minor clean ups and documentation changes
* tag 'trace-tools-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
verification/dot2: Improve dot parser robustness
tools/rtla: Improve exception handling in timerlat_load.py
tools/rtla: Enhance argument parsing in timerlat_load.py
tools/rtla: Improve code readability in timerlat_load.py
rtla/timerlat: Do not set params->user_workload with -U
rtla: Documentation: Mention --deepest-idle-state
rtla/timerlat: Add --deepest-idle-state for hist
rtla/timerlat: Add --deepest-idle-state for top
rtla/utils: Add idle state disabling via libcpupower
rtla: Add optional dependency on libcpupower
tools/build: Add libcpupower dependency detection
rtla/timerlat: Make timerlat_hist_cpu->*_count unsigned long long
rtla/timerlat: Make timerlat_top_cpu->*_count unsigned long long
tools/rtla: fix collision with glibc sched_attr/sched_set_attr
tools/rtla: drop __NR_sched_getattr
rtla: Fix consistency in getopt_long for timerlat_hist
rv: Fix a typo
tools/rv: Correct the grammatical errors in the comments
tools/rv: Correct the grammatical errors in the comments
rtla: use the definition for stdout fd when calling isatty()
Linus Torvalds [Fri, 22 Nov 2024 21:11:17 +0000 (13:11 -0800)]
Merge tag 'trace-ring-buffer-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull trace ring-buffer updates from Steven Rostedt:
- Limit time interrupts are disabled in rb_check_pages()
rb_check_pages() is called after the ring buffer size is updated to
make sure that the ring buffer has not been corrupted. Commit c2274b908db0 ("ring-buffer: Fix a race between readers and resize
checks") fixed a race with the check pages and simultaneous resizes
to the ring buffer by adding a raw_spin_lock_irqsave() around the
check operation. Although this was a simple fix, it would hold
interrupts disabled for non determinative amount of time. This could
harm PREEMPT_RT operations.
Instead, modify the logic by adding a counter when the buffer is
modified and to release the raw_spin_lock() at each iteration. It
checks the counter under the lock to see if a modification happened
during the loop, and if it did, it would restart the loop up to 3
times. After 3 times, it will simply exit the check, as it is
unlikely that would ever happen as buffer resizes are rare
occurrences.
- Replace some open coded str_low_high() with the helper
- Fix some documentation/comments
* tag 'trace-ring-buffer-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Correct a grammatical error in a comment
ring-buffer: Use str_low_high() helper in ring_buffer_producer()
ring-buffer: Reorganize kerneldoc parameter names
ring-buffer: Limit time with disabled interrupts in rb_check_pages()
Linus Torvalds [Fri, 22 Nov 2024 21:07:19 +0000 (13:07 -0800)]
Merge tag 'x86_tdx_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull tdx updates from Dave Hansen:
"These essentially refine some interactions between TDX guests and
VMMs.
The first leverages a new TDX module feature to runtime disable the
ability for a VM to inject #VE exceptions. Before this feature, there
was only a static on/off switch and the guest had to panic if it was
configured in a bad state.
The second lets the guest opt in to be able to access the topology
CPUID leaves. Before this, accesses to those leaves would #VE.
For both of these, it would have been nicest to just change the
default behavior, but some pesky "other" OSes evidently need to retain
the legacy behavior.
Summary:
- Add new infrastructure for reading TDX metadata
- Use the newly-available metadata to:
- Disable potentially nasty #VE exceptions
- Get more complete CPU topology information from the VMM"
* tag 'x86_tdx_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tdx: Enable CPU topology enumeration
x86/tdx: Dynamically disable SEPT violations from causing #VEs
x86/tdx: Rename tdx_parse_tdinfo() to tdx_setup()
x86/tdx: Introduce wrappers to read and write TD metadata
Linus Torvalds [Fri, 22 Nov 2024 20:52:03 +0000 (12:52 -0800)]
Merge tag 'x86_misc_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 updates from Dave Hansen:
"As usual for this branch, these are super random: a compile fix for
some newish LLVM checks and making sure a Kconfig text reference to
'RSB' matches the normal definition:
- Rework some CPU setup code to keep LLVM happy on 32-bit
- Correct RSB terminology in Kconfig text"
* tag 'x86_misc_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu: Make sure flag_is_changeable_p() is always being used
x86/bugs: Correct RSB terminology in Kconfig
Linus Torvalds [Fri, 22 Nov 2024 20:33:52 +0000 (12:33 -0800)]
Merge tag 'cxl-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl updates from Dave Jiang:
- Constify range_contains() input parameters to prevent changes
- Add support for displaying RCD capabilities in sysfs to support lspci
for CXL device
- Downgrade warning message to debug in cxl_probe_component_regs()
- Add support for adding a printf specifier '%pra' to emit 'struct
range' content:
- Add sanity tests for 'struct resource'
- Add documentation for special case
- Add %pra for 'struct range'
- Add %pra usage in CXL code
- Add preparation code for DCD support:
- Add range_overlaps()
- Add CDAT DSMAS table shared and read only flag in ACPICA
- Add documentation to 'struct dev_dax_range'
- Delay event buffer allocation in CXL PCI code until needed
- Use guard() in cxl_dpa_set_mode()
- Refactor create region code to consolidate common code
* tag 'cxl-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/region: Refactor common create region code
cxl/hdm: Use guard() in cxl_dpa_set_mode()
cxl/pci: Delay event buffer allocation
dax: Document struct dev_dax_range
ACPI/CDAT: Add CDAT/DSMAS shared and read only flag values
range: Add range_overlaps()
cxl/cdat: Use %pra for dpa range outputs
printf: Add print format (%pra) for struct range
Documentation/printf: struct resource add start == end special case
test printf: Add very basic struct resource tests
cxl: downgrade a warning message to debug level in cxl_probe_component_regs()
cxl/pci: Add sysfs attribute for CXL 1.1 device link status
cxl/core/regs: Add rcd_pcie_cap initialization
kernel/range: Const-ify range_contains parameters
Sebastian Fricke [Mon, 18 Nov 2024 07:03:51 +0000 (08:03 +0100)]
docs: Add debugging guide for the media subsystem
Provide a guide for developers on how to debug code with a focus on the
media subsystem. This document aims to provide a rough overview over the
possibilities and a rational to help choosing the right tool for the
given circumstances.
Sebastian Fricke [Mon, 18 Nov 2024 07:03:50 +0000 (08:03 +0100)]
docs: Add debugging section to process
This idea was formed after noticing that new developers experience
certain difficulty to navigate within the multitude of different
debugging options in the Kernel and while there often is good
documentation for the tools, the developer has to know first that they
exist and where to find them.
Add a general debugging section to the Kernel documentation, as an
easily locatable entry point to other documentation and as a general
guideline for the topic.
Uwe Kleine-König [Fri, 15 Nov 2024 10:38:41 +0000 (11:38 +0100)]
docs/licensing: Clarify wording about "GPL" and "Proprietary"
There are currently some doubts about out-of-tree kernel modules licensed
under GPLv3 and if they are supposed to be able to use symbols exported
using EXPORT_SYMBOL_GPL.
Clarify that "Proprietary" means anything non-GPL2 even though the
license might be an open source license. Also disambiguate "GPL
compatible" to "GPLv2 compatible".
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