Merge commit '6e64f4580381e32c06ee146ca807c555b8f73e24' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next

Merge tag 'vfio-v6.17-rc1-v2' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

- Fix imbalance where the no-iommu/cdev device path skips too much on
open, faili

Merge tag 'vfio-v6.17-rc1-v2' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

- Fix imbalance where the no-iommu/cdev device path skips too much on
open, failing to increment a reference, but still decrements the
reference on close. Add bounds checking to prevent such underflows
(Jacob Pan)

- Fill missing detach_ioas op for pds_vfio_pci, fixing probe failure
when used with IOMMUFD (Brett Creeley)

- Split SR-IOV VFs to separate dev_set, avoiding unnecessary
serialization between VFs that appear on the same bus (Alex
Williamson)

- Fix a theoretical integer overflow is the mlx5-vfio-pci variant
driver (Artem Sadovnikov)

- Implement missing VF token checking support via vfio cdev/IOMMUFD
interface (Jason Gunthorpe)

- Update QAT vfio-pci variant driver to claim latest VF devices
(Małgorzata Mielnik)

- Add a cond_resched() call to avoid holding the CPU too long during
DMA mapping operations (Keith Busch)

* tag 'vfio-v6.17-rc1-v2' of https://github.com/awilliam/linux-vfio:
vfio/type1: conditional rescheduling while pinning
vfio/qat: add support for intel QAT 6xxx virtual functions
vfio/qat: Remove myself from VFIO QAT PCI driver maintainers
vfio/pci: Do vf_token checks for VFIO_DEVICE_BIND_IOMMUFD
vfio/mlx5: fix possible overflow in tracking max message size
vfio/pci: Separate SR-IOV VF dev_set
vfio/pds: Fix missing detach_ioas op
vfio: Prevent open_count decrement to negative
vfio: Fix unbalanced vfio_df_close call in no-iommu mode

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 6.17 merge window.

Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next

Merge an immutable branch between MFD, GPIO, Input and PWM to resolve
conflicts for the mer

Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next

Merge an immutable branch between MFD, GPIO, Input and PWM to resolve
conflicts for the merge window pull request.

show more ...

vfio/mlx5: fix possible overflow in tracking max message size

MLX cap pg_track_log_max_msg_size consists of 5 bits, value of which is
used as power of 2 for max_msg_size. This can lead to multiplica

vfio/mlx5: fix possible overflow in tracking max message size

MLX cap pg_track_log_max_msg_size consists of 5 bits, value of which is
used as power of 2 for max_msg_size. This can lead to multiplication
overflow between max_msg_size (u32) and integer constant, and afterwards
incorrect value is being written to rq_size.

Fix this issue by extending integer constant to u64 type.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Artem Sadovnikov <a.sadovnikov@ispras.ru>
Reviewed-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20250701144017.2410-2-a.sadovnikov@ispras.ru
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

show more ...

Merge remote-tracking branch 'drm/drm-next' into msm-next

Back-merge drm-next to (indirectly) get arm-smmu updates for making
stall-on-fault more reliable.

Signed-off-by: Rob Clark <robin.clark@oss

Merge remote-tracking branch 'drm/drm-next' into msm-next

Back-merge drm-next to (indirectly) get arm-smmu updates for making
stall-on-fault more reliable.

Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>

show more ...

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

Backmerging to forward to v6.16-rc1

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

Merge drm/drm-next into drm-xe-next

Backmerging to bring in 6.16

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

Merge drm/drm-next into drm-intel-next

Sync to v6.16-rc1, among other things to get the fixed size GENMASK_U*()
and BIT_U*() macros.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge tag 'vfio-v6.16-rc1' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

- Remove an outdated DMA unmap optimization that relies on a feature
only implemente

Merge tag 'vfio-v6.16-rc1' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

- Remove an outdated DMA unmap optimization that relies on a feature
only implemented in AMDv1 page tables. (Jason Gunthorpe)

- Fix various migration issues in the hisi_acc_vfio_pci variant driver,
including use of a wrong DMA address requiring an update to the
migration data structure, resending task completion interrupt after
migration to re-sync queues, fixing a write-back cache sequencing
issue, fixing a driver unload issue, behaving correctly when the
guest driver is not loaded, and avoiding to squash errors from
sub-functions. (Longfang Liu)

- mlx5-vfio-pci variant driver update to make use of the new two-step
DMA API for migration, using a page array directly rather than using
a page list mapped across a scatter list. (Leon Romanovsky)

- Fix an incorrect loop index used when unwinding allocation of dirty
page bitmaps on error, resulting in temporary failure in freeing
unused bitmaps. (Li RongQing)

* tag 'vfio-v6.16-rc1' of https://github.com/awilliam/linux-vfio:
vfio/type1: Fix error unwind in migration dirty bitmap allocation
vfio/mlx5: Enable the DMA link API
vfio/mlx5: Rewrite create mkey flow to allow better code reuse
vfio/mlx5: Explicitly use number of pages instead of allocated length
hisi_acc_vfio_pci: update function return values.
hisi_acc_vfio_pci: bugfix live migration function without VF device driver
hisi_acc_vfio_pci: bugfix the problem of uninstalling driver
hisi_acc_vfio_pci: bugfix cache write-back issue
hisi_acc_vfio_pci: add eq and aeq interruption restore
hisi_acc_vfio_pci: fix XQE dma address error
vfio/type1: Remove Fine Grained Superpages detection

show more ...

vfio/mlx5: Enable the DMA link API

Remove intermediate scatter-gather table completely and
enable new DMA link API.

Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.

vfio/mlx5: Enable the DMA link API

Remove intermediate scatter-gather table completely and
enable new DMA link API.

Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/f71638d50c9c79a462f2e0423501b1de77617656.1747747694.git.leon@kernel.org
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

show more ...

vfio/mlx5: Rewrite create mkey flow to allow better code reuse

Change the creation of mkey to be performed in multiple steps:
data allocation, DMA setup and actual call to HW to create that mkey.

I

vfio/mlx5: Rewrite create mkey flow to allow better code reuse

Change the creation of mkey to be performed in multiple steps:
data allocation, DMA setup and actual call to HW to create that mkey.

In this new flow, the whole input to MKEY command is saved to eliminate
the need to keep array of pointers for DMA addresses for receive list
and in the future patches for send list too.

In addition to memory size reduce and elimination of unnecessary data
movements to set MKEY input, the code is prepared for future reuse.

Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/d4ad0384fbd1e23a607cbbe9e5756748f3a761d9.1747747694.git.leon@kernel.org
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

show more ...

vfio/mlx5: Explicitly use number of pages instead of allocated length

allocated_length is a multiple of page size and number of pages,
so let's change the functions to accept number of pages. This i

vfio/mlx5: Explicitly use number of pages instead of allocated length

allocated_length is a multiple of page size and number of pages,
so let's change the functions to accept number of pages. This improves
code readability, simplifies buffer handling, and enables combining DMA
send/receive operations, as will be introduced in the next patches.

Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/76f39993d2ca0311b3bcfe56038a669d03926815.1747747694.git.leon@kernel.org
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

show more ...

Merge drm/drm-fixes into drm-misc-fixes

Backmerging to get updates from v6.15-rc1.

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

Merge branch 'next' into for-linus

Prepare input updates for 6.15 merge window.

Merge branch 'for-6.15/amd_sfh' into for-linus

From: Mario Limonciello <mario.limonciello@amd.com>

Some platforms include a human presence detection (HPD) sensor. When
enabled and a user is detecte

Merge branch 'for-6.15/amd_sfh' into for-linus

From: Mario Limonciello <mario.limonciello@amd.com>

Some platforms include a human presence detection (HPD) sensor. When
enabled and a user is detected a wake event will be emitted from the
sensor fusion hub that software can react to.

Example use cases are "wake from suspend on approach" or to "lock
when leaving".

This is currently enabled by default on supported systems, but users
can't control it. This essentially means that wake on approach is
enabled which is a really surprising behavior to users that don't
expect it.

Instead of defaulting to enabled add a sysfs knob that users can
use to enable the feature if desirable and set it to disabled by
default.

show more ...

Merge drm/drm-next into drm-xe-next

Sync to fix conlicts between drm-xe-next and drm-intel-next.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

Merge tag 'v6.14-rc4' into next

Sync up with the mainline.

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

Bring rc1 to start the new release dev.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge remote-tracking branch 'drm-misc/drm-misc-next-fixes' into drm-misc-fixes

Merge the few remaining patches stuck into drm-misc-next-fixes.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge tag 'v6.14-rc1' into perf-tools-next

To get the various fixes in the current master.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>

Merge drm/drm-next into drm-intel-next

Sync with v6.14-rc1.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-gt-next

We need
4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope")
in order to land a i915 PMU simplification and a fix. That landed in 6.12
and

Merge drm/drm-next into drm-intel-gt-next

We need
4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope")
in order to land a i915 PMU simplification and a fix. That landed in 6.12
and we are stuck at 6.9 so lets bump things forward.

Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>

show more ...

Merge drm/drm-next into drm-xe-next

Backmerge drm-next to get the common APIs and refactors as well as
getting the display changes from i915 in xe so the probe order can be
improved.

Signed-off-by:

Merge drm/drm-next into drm-xe-next

Backmerge drm-next to get the common APIs and refactors as well as
getting the display changes from i915 in xe so the probe order can be
improved.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

show more ...

Merge tag 'mm-stable-2025-01-26-14-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:
"The various patchsets are summarized below. Plus of course many

Merge tag 'mm-stable-2025-01-26-14-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:
"The various patchsets are summarized below. Plus of course many
indivudual patches which are described in their changelogs.

- "Allocate and free frozen pages" from Matthew Wilcox reorganizes
the page allocator so we end up with the ability to allocate and
free zero-refcount pages. So that callers (ie, slab) can avoid a
refcount inc & dec

- "Support large folios for tmpfs" from Baolin Wang teaches tmpfs to
use large folios other than PMD-sized ones

- "Fix mm/rodata_test" from Petr Tesarik performs some maintenance
and fixes for this small built-in kernel selftest

- "mas_anode_descend() related cleanup" from Wei Yang tidies up part
of the mapletree code

- "mm: fix format issues and param types" from Keren Sun implements a
few minor code cleanups

- "simplify split calculation" from Wei Yang provides a few fixes and
a test for the mapletree code

- "mm/vma: make more mmap logic userland testable" from Lorenzo
Stoakes continues the work of moving vma-related code into the
(relatively) new mm/vma.c

- "mm/page_alloc: gfp flags cleanups for alloc_contig_*()" from David
Hildenbrand cleans up and rationalizes handling of gfp flags in the
page allocator

- "readahead: Reintroduce fix for improper RA window sizing" from Jan
Kara is a second attempt at fixing a readahead window sizing issue.
It should reduce the amount of unnecessary reading

- "synchronously scan and reclaim empty user PTE pages" from Qi Zheng
addresses an issue where "huge" amounts of pte pagetables are
accumulated:

https://lore.kernel.org/lkml/cover.1718267194.git.zhengqi.arch@bytedance.com/

Qi's series addresses this windup by synchronously freeing PTE
memory within the context of madvise(MADV_DONTNEED)

- "selftest/mm: Remove warnings found by adding compiler flags" from
Muhammad Usama Anjum fixes some build warnings in the selftests
code when optional compiler warnings are enabled

- "mm: don't use __GFP_HARDWALL when migrating remote pages" from
David Hildenbrand tightens the allocator's observance of
__GFP_HARDWALL

- "pkeys kselftests improvements" from Kevin Brodsky implements
various fixes and cleanups in the MM selftests code, mainly
pertaining to the pkeys tests

- "mm/damon: add sample modules" from SeongJae Park enhances DAMON to
estimate application working set size

- "memcg/hugetlb: Rework memcg hugetlb charging" from Joshua Hahn
provides some cleanups to memcg's hugetlb charging logic

- "mm/swap_cgroup: remove global swap cgroup lock" from Kairui Song
removes the global swap cgroup lock. A speedup of 10% for a
tmpfs-based kernel build was demonstrated

- "zram: split page type read/write handling" from Sergey Senozhatsky
has several fixes and cleaups for zram in the area of
zram_write_page(). A watchdog softlockup warning was eliminated

- "move pagetable_*_dtor() to __tlb_remove_table()" from Kevin
Brodsky cleans up the pagetable destructor implementations. A rare
use-after-free race is fixed

- "mm/debug: introduce and use VM_WARN_ON_VMG()" from Lorenzo Stoakes
simplifies and cleans up the debugging code in the VMA merging
logic

- "Account page tables at all levels" from Kevin Brodsky cleans up
and regularizes the pagetable ctor/dtor handling. This results in
improvements in accounting accuracy

- "mm/damon: replace most damon_callback usages in sysfs with new
core functions" from SeongJae Park cleans up and generalizes
DAMON's sysfs file interface logic

- "mm/damon: enable page level properties based monitoring" from
SeongJae Park increases the amount of information which is
presented in response to DAMOS actions

- "mm/damon: remove DAMON debugfs interface" from SeongJae Park
removes DAMON's long-deprecated debugfs interfaces. Thus the
migration to sysfs is completed

- "mm/hugetlb: Refactor hugetlb allocation resv accounting" from
Peter Xu cleans up and generalizes the hugetlb reservation
accounting

- "mm: alloc_pages_bulk: small API refactor" from Luiz Capitulino
removes a never-used feature of the alloc_pages_bulk() interface

- "mm/damon: extend DAMOS filters for inclusion" from SeongJae Park
extends DAMOS filters to support not only exclusion (rejecting),
but also inclusion (allowing) behavior

- "Add zpdesc memory descriptor for zswap.zpool" from Alex Shi
introduces a new memory descriptor for zswap.zpool that currently
overlaps with struct page for now. This is part of the effort to
reduce the size of struct page and to enable dynamic allocation of
memory descriptors

- "mm, swap: rework of swap allocator locks" from Kairui Song redoes
and simplifies the swap allocator locking. A speedup of 400% was
demonstrated for one workload. As was a 35% reduction for kernel
build time with swap-on-zram

- "mm: update mips to use do_mmap(), make mmap_region() internal"
from Lorenzo Stoakes reworks MIPS's use of mmap_region() so that
mmap_region() can be made MM-internal

- "mm/mglru: performance optimizations" from Yu Zhao fixes a few
MGLRU regressions and otherwise improves MGLRU performance

- "Docs/mm/damon: add tuning guide and misc updates" from SeongJae
Park updates DAMON documentation

- "Cleanup for memfd_create()" from Isaac Manjarres does that thing

- "mm: hugetlb+THP folio and migration cleanups" from David
Hildenbrand provides various cleanups in the areas of hugetlb
folios, THP folios and migration

- "Uncached buffered IO" from Jens Axboe implements the new
RWF_DONTCACHE flag which provides synchronous dropbehind for
pagecache reading and writing. To permite userspace to address
issues with massive buildup of useless pagecache when
reading/writing fast devices

- "selftests/mm: virtual_address_range: Reduce memory" from Thomas
Weißschuh fixes and optimizes some of the MM selftests"

* tag 'mm-stable-2025-01-26-14-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (321 commits)
mm/compaction: fix UBSAN shift-out-of-bounds warning
s390/mm: add missing ctor/dtor on page table upgrade
kasan: sw_tags: use str_on_off() helper in kasan_init_sw_tags()
tools: add VM_WARN_ON_VMG definition
mm/damon/core: use str_high_low() helper in damos_wmark_wait_us()
seqlock: add missing parameter documentation for raw_seqcount_try_begin()
mm/page-writeback: consolidate wb_thresh bumping logic into __wb_calc_thresh
mm/page_alloc: remove the incorrect and misleading comment
zram: remove zcomp_stream_put() from write_incompressible_page()
mm: separate move/undo parts from migrate_pages_batch()
mm/kfence: use str_write_read() helper in get_access_type()
selftests/mm/mkdirty: fix memory leak in test_uffdio_copy()
kasan: hw_tags: Use str_on_off() helper in kasan_init_hw_tags()
selftests/mm: virtual_address_range: avoid reading from VM_IO mappings
selftests/mm: vm_util: split up /proc/self/smaps parsing
selftests/mm: virtual_address_range: unmap chunks after validation
selftests/mm: virtual_address_range: mmap() without PROT_WRITE
selftests/memfd/memfd_test: fix possible NULL pointer dereference
mm: add FGP_DONTCACHE folio creation flag
mm: call filemap_fdatawrite_range_kick() after IOCB_DONTCACHE issue
...

show more ...