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In order to update all mmap_prepare users to utilising the new VMA flags
type vma_flags_t and associated helper functions, we start by updating
hugetlbfs which has a lot of additional logic that requires updating to
make this change.
This is laying the groundwork for eliminating the vm_flags_t from struct
vm_area_desc and using vma_flags_t only, which further lays the ground for
removing the deprecated vm_flags_t type altogether.
No functional changes intended.
Link: https://lkml.kernel.org/r/9226bec80c9aa3447cc2b83354f733841dba8a50.1769097829.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Damien Le Moal <dlemoal@kernel.org>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Yury Norov <ynorov@nvidia.com>
Cc: Chris Mason <clm@fb.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Now we have the mk_vma_flags() macro helper which permits easy
specification of any number of VMA flags, add helper functions which
operate with vma_flags_t parameters.
This patch provides vma_flags_test[_mask](), vma_flags_set[_mask]() and
vma_flags_clear[_mask]() respectively testing, setting and clearing flags
with the _mask variants accepting vma_flag_t parameters, and the non-mask
variants implemented as macros which accept a list of flags.
This allows us to trivially test/set/clear aggregate VMA flag values as
necessary, for instance:
if (vma_flags_test(&flags, VMA_READ_BIT, VMA_WRITE_BIT))
goto readwrite;
vma_flags_set(&flags, VMA_READ_BIT, VMA_WRITE_BIT);
vma_flags_clear(&flags, VMA_READ_BIT, VMA_WRITE_BIT);
We also add a function for testing that ALL flags are set for convenience,
e.g.:
if (vma_flags_test_all(&flags, VMA_READ_BIT, VMA_MAYREAD_BIT)) {
/* Both READ and MAYREAD flags set */
...
}
The compiler generates optimal assembly for each such that they behave as
if the caller were setting the bitmap flags manually.
This is important for e.g. drivers which manipulate flag values rather
than a VMA's specific flag values.
We also add helpers for testing, setting and clearing flags for VMA's and
VMA descriptors to reduce boilerplate.
Also add the EMPTY_VMA_FLAGS define to aid initialisation of empty flags.
Finally, update the userland VMA tests to add the helpers there so they
can be utilised as part of userland testing.
Link: https://lkml.kernel.org/r/885d4897d67a6a57c0b07fa182a7055ad752df11.1769097829.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Pedro Falcato <pfalcato@suse.de>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Damien Le Moal <dlemoal@kernel.org>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Yury Norov <ynorov@nvidia.com>
Cc: Chris Mason <clm@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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This patch introduces the mk_vma_flags() macro helper to allow easy
manipulation of VMA flags utilising the new bitmap representation
implemented of VMA flags defined by the vma_flags_t type.
It is a variadic macro which provides a bitwise-or'd representation of all
of each individual VMA flag specified.
Note that, while we maintain VM_xxx flags for backwards compatibility
until the conversion is complete, we define VMA flags of type vma_flag_t
using VMA_xxx_BIT to avoid confusing the two.
This helper macro therefore can be used thusly:
vma_flags_t flags = mk_vma_flags(VMA_READ_BIT, VMA_WRITE_BIT);
Testing has demonstrated that the compiler optimises this code such that
it generates the same assembly utilising this macro as it does if the
flags were specified manually, for instance:
vma_flags_t get_flags(void)
{
return mk_vma_flags(VMA_READ_BIT, VMA_WRITE_BIT, VMA_EXEC_BIT);
}
Generates the same code as:
vma_flags_t get_flags(void)
{
vma_flags_t flags;
vma_flags_clear_all(&flags);
vma_flag_set(&flags, VMA_READ_BIT);
vma_flag_set(&flags, VMA_WRITE_BIT);
vma_flag_set(&flags, VMA_EXEC_BIT);
return flags;
}
And:
vma_flags_t get_flags(void)
{
vma_flags_t flags;
unsigned long *bitmap = ACCESS_PRIVATE(&flags, __vma_flags);
*bitmap = 1UL << (__force int)VMA_READ_BIT;
*bitmap |= 1UL << (__force int)VMA_WRITE_BIT;
*bitmap |= 1UL << (__force int)VMA_EXEC_BIT;
return flags;
}
That is:
get_flags:
movl $7, %eax
ret
Link: https://lkml.kernel.org/r/fde00df6ff7fb8c4b42cc0defa5a4924c7a1943a.1769097829.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Pedro Falcato <pfalcato@suse.de>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Damien Le Moal <dlemoal@kernel.org>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Yury Norov <ynorov@nvidia.com>
Cc: Chris Mason <clm@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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In order to stay consistent between functions which manipulate a
vm_flags_t argument of the form of vma_flags_...() and those which
manipulate a VMA (in this case the flags field of a VMA), rename
vma_flag_[test/set]_atomic() to vma_[test/set]_atomic_flag().
This lays the groundwork for adding VMA flag manipulation functions in a
subsequent commit.
Link: https://lkml.kernel.org/r/033dcf12e819dee5064582bced9b12ea346d1607.1769097829.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Pedro Falcato <pfalcato@suse.de>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Damien Le Moal <dlemoal@kernel.org>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Yury Norov <ynorov@nvidia.com>
Cc: Chris Mason <clm@fb.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "mm: add bitmap VMA flag helpers and convert all mmap_prepare
to use them", v2.
We introduced the bitmap VMA type vma_flags_t in the aptly named commit
9ea35a25d51b ("mm: introduce VMA flags bitmap type") in order to permit
future growth in VMA flags and to prevent the asinine requirement that VMA
flags be available to 64-bit kernels only if they happened to use a bit
number about 32-bits.
This is a long-term project as there are very many users of VMA flags
within the kernel that need to be updated in order to utilise this new
type.
In order to further this aim, this series adds a number of helper
functions to enable ordinary interactions with VMA flags - that is
testing, setting and clearing them.
In order to make working with VMA bit numbers less cumbersome this series
introduces the mk_vma_flags() helper macro which generates a vma_flags_t
from a variadic parameter list, e.g.:
vma_flags_t flags = mk_vma_flags(VMA_READ_BIT, VMA_WRITE_BIT,
VMA_EXEC_BIT);
It turns out that the compiler optimises this very well to the point that
this is just as efficient as using VM_xxx pre-computed bitmap values.
This series then introduces the following functions:
bool vma_flags_test_mask(vma_flags_t flags, vma_flags_t to_test);
bool vma_flags_test_all_mask(vma_flags_t flags, vma_flags_t to_test);
void vma_flags_set_mask(vma_flags_t *flags, vma_flags_t to_set);
void vma_flags_clear_mask(vma_flags_t *flags, vma_flags_t to_clear);
Providing means of testing any flag, testing all flags, setting, and
clearing a specific vma_flags_t mask.
For convenience, helper macros are provided - vma_flags_test(),
vma_flags_set() and vma_flags_clear(), each of which utilise
mk_vma_flags() to make these operations easier, as well as an
EMPTY_VMA_FLAGS macro to make initialisation of an empty vma_flags_t value
easier, e.g.:
vma_flags_t flags = EMPTY_VMA_FLAGS;
vma_flags_set(&flags, VMA_READ_BIT, VMA_WRITE_BIT, VMA_EXEC_BIT);
...
if (vma_flags_test(flags, VMA_READ_BIT)) {
...
}
...
if (vma_flags_test_all_mask(flags, VMA_REMAP_FLAGS)) {
...
}
...
vma_flags_clear(&flags, VMA_READ_BIT);
Since callers are often dealing with a vm_area_struct (VMA) or
vm_area_desc (VMA descriptor as used in .mmap_prepare) object, this series
further provides helpers for these - firstly vma_set_flags_mask() and
vma_set_flags() for a VMA:
vma_flags_t flags = EMPTY_VMA_FLAGS:
vma_flags_set(&flags, VMA_READ_BIT, VMA_WRITE_BIT, VMA_EXEC_BIT);
...
vma_set_flags_mask(&vma, flags);
...
vma_set_flags(&vma, VMA_DONTDUMP_BIT);
Note that these do NOT ensure appropriate locks are taken and assume the
callers takes care of this.
For VMA descriptors this series adds vma_desc_[test, set,
clear]_flags_mask() and vma_desc_[test, set, clear]_flags() for a VMA
descriptor, e.g.:
static int foo_mmap_prepare(struct vm_area_desc *desc)
{
...
vma_desc_set_flags(desc, VMA_SEQ_READ_BIT);
vma_desc_clear_flags(desc, VMA_RAND_READ_BIT);
...
if (vma_desc_test_flags(desc, VMA_SHARED_BIT) {
...
}
...
}
With these helpers introduced, this series then updates all mmap_prepare
users to make use of the vma_flags_t vm_area_desc->vma_flags field rather
than the legacy vm_flags_t vm_area_desc->vm_flags field.
In order to do so, several other related functions need to be updated,
with separate patches for larger changes in hugetlbfs, secretmem and shmem
before finally removing vm_area_desc->vm_flags altogether.
This lays the foundations for future elimination of vm_flags_t and
associated defines and functionality altogether in the long run, and
elimination of the use of vm_flags_t in f_op->mmap() hooks in the near
term as mmap_prepare replaces these.
There is a useful synergy between the VMA flags and mmap_prepare work here
as with this change in place, converting f_op->mmap() to
f_op->mmap_prepare naturally also converts use of vm_flags_t to
vma_flags_t in all drivers which declare mmap handlers.
This accounts for the majority of the users of the legacy vm_flags_*()
helpers and thus a large number of drivers which need to interact with VMA
flags in general.
This series also updates the userland VMA tests to account for the change,
and adds unit tests for these helper functions to assert that they behave
as expected.
In order to faciliate this change in a sensible way, the series also
separates out the VMA unit tests into - code that is duplicated from the
kernel that should be kept in sync, code that is customised for test
purposes and code that is stubbed out.
We also separate out the VMA userland tests into separate files to make it
easier to manage and to provide a sensible baseline for adding the
userland tests for these helpers.
This patch (of 13):
We need to pass around these values and access them in a way that sparse
does not allow, as __private implies noderef, i.e. disallowing
dereference of the value, which manifests as sparse warnings even when
passed around benignly.
Link: https://lkml.kernel.org/r/cover.1769097829.git.lorenzo.stoakes@oracle.com
Link: https://lkml.kernel.org/r/64fa89f416f22a60ae74cfff8fd565e7677be192.1769097829.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Pedro Falcato <pfalcato@suse.de>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Damien Le Moal <dlemoal@kernel.org>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Yury Norov <ynorov@nvidia.com>
Cc: Chris Mason <clm@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Convert vms_clear_ptes() to use unmap_desc to call unmap_vmas() instead of
the large argument list. The UNMAP_STATE() cannot be used because the vma
iterator in the vms does not point to the correct maple state
(mas_detach), and the tree_end will be set incorrectly. Setting up the
arguments manually avoids setting the struct up incorrectly and doing
extra work to get the correct pagetable range.
exit_mmap() also calls unmap_vmas() with many arguments. Using the
unmap_all_init() function to set the unmap descriptor for all vmas makes
this a bit easier to read.
Update to the vma test code is necessary to ensure testing continues to
function.
No functional changes intended.
Link: https://lkml.kernel.org/r/20260121164946.2093480-10-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: SeongJae Park <sj@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series " Remove XA_ZERO from error recovery of dup_mmap()", v3.
It is possible that the dup_mmap() call fails on allocating or setting up
a vma after the maple tree of the oldmm is copied. Today, that failure
point is marked by inserting an XA_ZERO entry over the failure point so
that the exact location does not need to be communicated through to
exit_mmap().
However, a race exists in the tear down process because the dup_mmap()
drops the mmap lock before exit_mmap() can remove the partially set up vma
tree. This means that other tasks may get to the mm tree and find the
invalid vma pointer (since it's an XA_ZERO entry), even though the mm is
marked as MMF_OOM_SKIP and MMF_UNSTABLE.
To remove the race fully, the tree must be cleaned up before dropping the
lock. This is accomplished by extracting the vma cleanup in exit_mmap()
and changing the required functions to pass through the vma search limit.
Any other tree modifications would require extra cycles which should be
spent on freeing memory.
This does run the risk of increasing the possibility of finding no vmas
(which is already possible!) in code that isn't careful.
The final four patches are to address the excessive argument lists being
passed between the functions. Using the struct unmap_desc also allows
some special-case code to be removed in favour of the struct setup
differences.
This patch (of 11):
pgtables.h defines a fallback for ceiling and floor of the page tables
within the CONFIG_MMU section. Moving the definitions to outside the
CONFIG_MMU allows for using them in generic code.
[akpm@linux-foundation.org: remove stray newline, per SeongJae]
Link: https://lkml.kernel.org/r/20260121164946.2093480-1-Liam.Howlett@oracle.com
Link: https://lkml.kernel.org/r/20260121164946.2093480-2-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Suggested-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Suggested-by: SeongJae Park <sj@kernel.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The preferred demotion node (migration_target_control.nid) should be the
one closest to the source node to minimize migration latency. Currently,
a discrepancy exists where demote_folio_list() randomly selects an allowed
node if the preferred node from next_demotion_node() is not set in
mems_effective.
To address it, update next_demotion_node() to select a preferred target
against allowed nodes; and to return the closest demotion target if all
preferred nodes are not in mems_effective via next_demotion_node().
It ensures that the preferred demotion target is consistently the closest
available node to the source node.
[akpm@linux-foundation.org: fix comment typo, per Shakeel]
Link: https://lkml.kernel.org/r/20260114205305.2869796-3-bingjiao@google.com
Signed-off-by: Bing Jiao <bingjiao@google.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Gregory Price <gourry@gourry.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Waiman Long <longman@redhat.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "mm/vmscan: fix demotion targets checks in reclaim/demotion",
v9.
This patch series addresses two issues in demote_folio_list(),
can_demote(), and next_demotion_node() in reclaim/demotion.
1. demote_folio_list() and can_demote() do not correctly check
demotion target against cpuset.mems_effective, which will cause (a)
pages to be demoted to not-allowed nodes and (b) pages fail demotion
even if the system still has allowed demotion nodes.
Patch 1 fixes this bug by updating cpuset_node_allowed() and
mem_cgroup_node_allowed() to return effective_mems, allowing directly
logic-and operation against demotion targets.
2. next_demotion_node() returns a preferred demotion target, but it
does not check the node against allowed nodes.
Patch 2 ensures that next_demotion_node() filters against the allowed
node mask and selects the closest demotion target to the source node.
This patch (of 2):
Fix two bugs in demote_folio_list() and can_demote() due to incorrect
demotion target checks against cpuset.mems_effective in reclaim/demotion.
Commit 7d709f49babc ("vmscan,cgroup: apply mems_effective to reclaim")
introduces the cpuset.mems_effective check and applies it to can_demote().
However:
1. It does not apply this check in demote_folio_list(), which leads
to situations where pages are demoted to nodes that are
explicitly excluded from the task's cpuset.mems.
2. It checks only the nodes in the immediate next demotion hierarchy
and does not check all allowed demotion targets in can_demote().
This can cause pages to never be demoted if the nodes in the next
demotion hierarchy are not set in mems_effective.
These bugs break resource isolation provided by cpuset.mems. This is
visible from userspace because pages can either fail to be demoted
entirely or are demoted to nodes that are not allowed in multi-tier memory
systems.
To address these bugs, update cpuset_node_allowed() and
mem_cgroup_node_allowed() to return effective_mems, allowing directly
logic-and operation against demotion targets. Also update can_demote()
and demote_folio_list() accordingly.
Bug 1 reproduction:
Assume a system with 4 nodes, where nodes 0-1 are top-tier and
nodes 2-3 are far-tier memory. All nodes have equal capacity.
Test script:
echo 1 > /sys/kernel/mm/numa/demotion_enabled
mkdir /sys/fs/cgroup/test
echo +cpuset > /sys/fs/cgroup/cgroup.subtree_control
echo "0-2" > /sys/fs/cgroup/test/cpuset.mems
echo $$ > /sys/fs/cgroup/test/cgroup.procs
swapoff -a
# Expectation: Should respect node 0-2 limit.
# Observation: Node 3 shows significant allocation (MemFree drops)
stress-ng --oomable --vm 1 --vm-bytes 150% --mbind 0,1
Bug 2 reproduction:
Assume a system with 6 nodes, where nodes 0-2 are top-tier,
node 3 is a far-tier node, and nodes 4-5 are the farthest-tier nodes.
All nodes have equal capacity.
Test script:
echo 1 > /sys/kernel/mm/numa/demotion_enabled
mkdir /sys/fs/cgroup/test
echo +cpuset > /sys/fs/cgroup/cgroup.subtree_control
echo "0-2,4-5" > /sys/fs/cgroup/test/cpuset.mems
echo $$ > /sys/fs/cgroup/test/cgroup.procs
swapoff -a
# Expectation: Pages are demoted to Nodes 4-5
# Observation: No pages are demoted before oom.
stress-ng --oomable --vm 1 --vm-bytes 150% --mbind 0,1,2
Link: https://lkml.kernel.org/r/20260114205305.2869796-1-bingjiao@google.com
Link: https://lkml.kernel.org/r/20260114205305.2869796-2-bingjiao@google.com
Fixes: 7d709f49babc ("vmscan,cgroup: apply mems_effective to reclaim")
Signed-off-by: Bing Jiao <bingjiao@google.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Gregory Price <gourry@gourry.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Waiman Long <longman@redhat.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull runtime verifier updates from Steven Rostedt:
- Refactor da_monitor to minimize macros
Complete refactor of da_monitor.h to reduce reliance on macros
generating functions. Use generic static functions and uses the
preprocessor only when strictly necessary (e.g. for tracepoint
handlers).
The change essentially relies on functions with generic names (e.g.
da_handle) instead of monitor-specific as well adding the need to
define constant (e.g. MONITOR_NAME, MONITOR_TYPE) before including
the header rather than calling macros that would define functions.
Also adapt monitors and documentation accordingly.
- Cleanup DA code generation scripts
Clean up functions in dot2c removing reimplementations of trivial
library functions (__buff_to_string) and removing some other unused
intermediate steps.
- Annotate functions with types in the rvgen python scripts
- Remove superfluous assignments and cleanup generated code
The rvgen scripts generate a superfluous assignment to 0 for enum
variables and don't add commas to the last elements, which is against
the kernel coding standards. Change the generation process for a
better compliance and slightly simpler logic.
- Remove superfluous declarations from generated code
The monitor container source files contained a declaration and a
definition for the rv_monitor variable. The former is superfluous and
was removed.
- Fix reference to outdated documentation
s/da_monitor_synthesis.rst/monitor_synthesis.rst in comment in
da_monitor.h
* tag 'trace-rv-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
rv: Fix documentation reference in da_monitor.h
verification/rvgen: Remove unused variable declaration from containers
verification/dot2c: Remove superfluous enum assignment and add last comma
verification/dot2c: Remove __buff_to_string() and cleanup
verification/rvgen: Annotate DA functions with types
verification/rvgen: Adapt dot2k and templates after refactoring da_monitor.h
Documentation/rv: Adapt documentation after da_monitor refactoring
rv: Cleanup da_monitor after refactor
rv: Refactor da_monitor to minimise macros
|
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves
disk space by teaching ocfs2 to reclaim suballocator block group
space (Heming Zhao)
- "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the
ARRAY_END() macro and uses it in various places (Alejandro Colomar)
- "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes
the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the
page size (Pnina Feder)
- "kallsyms: Prevent invalid access when showing module buildid" cleans
up kallsyms code related to module buildid and fixes an invalid
access crash when printing backtraces (Petr Mladek)
- "Address page fault in ima_restore_measurement_list()" fixes a
kexec-related crash that can occur when booting the second-stage
kernel on x86 (Harshit Mogalapalli)
- "kho: ABI headers and Documentation updates" updates the kexec
handover ABI documentation (Mike Rapoport)
- "Align atomic storage" adds the __aligned attribute to atomic_t and
atomic64_t definitions to get natural alignment of both types on
csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain)
- "kho: clean up page initialization logic" simplifies the page
initialization logic in kho_restore_page() (Pratyush Yadav)
- "Unload linux/kernel.h" moves several things out of kernel.h and into
more appropriate places (Yury Norov)
- "don't abuse task_struct.group_leader" removes the usage of
->group_leader when it is "obviously unnecessary" (Oleg Nesterov)
- "list private v2 & luo flb" adds some infrastructure improvements to
the live update orchestrator (Pasha Tatashin)
* tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits)
watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency
procfs: fix missing RCU protection when reading real_parent in do_task_stat()
watchdog/softlockup: fix sample ring index wrap in need_counting_irqs()
kcsan, compiler_types: avoid duplicate type issues in BPF Type Format
kho: fix doc for kho_restore_pages()
tests/liveupdate: add in-kernel liveupdate test
liveupdate: luo_flb: introduce File-Lifecycle-Bound global state
liveupdate: luo_file: Use private list
list: add kunit test for private list primitives
list: add primitives for private list manipulations
delayacct: fix uapi timespec64 definition
panic: add panic_force_cpu= parameter to redirect panic to a specific CPU
netclassid: use thread_group_leader(p) in update_classid_task()
RDMA/umem: don't abuse current->group_leader
drm/pan*: don't abuse current->group_leader
drm/amd: kill the outdated "Only the pthreads threading model is supported" checks
drm/amdgpu: don't abuse current->group_leader
android/binder: use same_thread_group(proc->tsk, current) in binder_mmap()
android/binder: don't abuse current->group_leader
kho: skip memoryless NUMA nodes when reserving scratch areas
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- "powerpc/64s: do not re-activate batched TLB flush" makes
arch_{enter|leave}_lazy_mmu_mode() nest properly (Alexander Gordeev)
It adds a generic enter/leave layer and switches architectures to use
it. Various hacks were removed in the process.
- "zram: introduce compressed data writeback" implements data
compression for zram writeback (Richard Chang and Sergey Senozhatsky)
- "mm: folio_zero_user: clear page ranges" adds clearing of contiguous
page ranges for hugepages. Large improvements during demand faulting
are demonstrated (David Hildenbrand)
- "memcg cleanups" tidies up some memcg code (Chen Ridong)
- "mm/damon: introduce {,max_}nr_snapshots and tracepoint for damos
stats" improves DAMOS stat's provided information, deterministic
control, and readability (SeongJae Park)
- "selftests/mm: hugetlb cgroup charging: robustness fixes" fixes a few
issues in the hugetlb cgroup charging selftests (Li Wang)
- "Fix va_high_addr_switch.sh test failure - again" addresses several
issues in the va_high_addr_switch test (Chunyu Hu)
- "mm/damon/tests/core-kunit: extend existing test scenarios" improves
the KUnit test coverage for DAMON (Shu Anzai)
- "mm/khugepaged: fix dirty page handling for MADV_COLLAPSE" fixes a
glitch in khugepaged which was causing madvise(MADV_COLLAPSE) to
transiently return -EAGAIN (Shivank Garg)
- "arch, mm: consolidate hugetlb early reservation" reworks and
consolidates a pile of straggly code related to reservation of
hugetlb memory from bootmem and creation of CMA areas for hugetlb
(Mike Rapoport)
- "mm: clean up anon_vma implementation" cleans up the anon_vma
implementation in various ways (Lorenzo Stoakes)
- "tweaks for __alloc_pages_slowpath()" does a little streamlining of
the page allocator's slowpath code (Vlastimil Babka)
- "memcg: separate private and public ID namespaces" cleans up the
memcg ID code and prevents the internal-only private IDs from being
exposed to userspace (Shakeel Butt)
- "mm: hugetlb: allocate frozen gigantic folio" cleans up the
allocation of frozen folios and avoids some atomic refcount
operations (Kefeng Wang)
- "mm/damon: advance DAMOS-based LRU sorting" improves DAMOS's movement
of memory betewwn the active and inactive LRUs and adds auto-tuning
of the ratio-based quotas and of monitoring intervals (SeongJae Park)
- "Support page table check on PowerPC" makes
CONFIG_PAGE_TABLE_CHECK_ENFORCED work on powerpc (Andrew Donnellan)
- "nodemask: align nodes_and{,not} with underlying bitmap ops" makes
nodes_and() and nodes_andnot() propagate the return values from the
underlying bit operations, enabling some cleanup in calling code
(Yury Norov)
- "mm/damon: hide kdamond and kdamond_lock from API callers" cleans up
some DAMON internal interfaces (SeongJae Park)
- "mm/khugepaged: cleanups and scan limit fix" does some cleanup work
in khupaged and fixes a scan limit accounting issue (Shivank Garg)
- "mm: balloon infrastructure cleanups" goes to town on the balloon
infrastructure and its page migration function. Mainly cleanups, also
some locking simplification (David Hildenbrand)
- "mm/vmscan: add tracepoint and reason for kswapd_failures reset" adds
additional tracepoints to the page reclaim code (Jiayuan Chen)
- "Replace wq users and add WQ_PERCPU to alloc_workqueue() users" is
part of Marco's kernel-wide migration from the legacy workqueue APIs
over to the preferred unbound workqueues (Marco Crivellari)
- "Various mm kselftests improvements/fixes" provides various unrelated
improvements/fixes for the mm kselftests (Kevin Brodsky)
- "mm: accelerate gigantic folio allocation" greatly speeds up gigantic
folio allocation, mainly by avoiding unnecessary work in
pfn_range_valid_contig() (Kefeng Wang)
- "selftests/damon: improve leak detection and wss estimation
reliability" improves the reliability of two of the DAMON selftests
(SeongJae Park)
- "mm/damon: cleanup kdamond, damon_call(), damos filter and
DAMON_MIN_REGION" does some cleanup work in the core DAMON code
(SeongJae Park)
- "Docs/mm/damon: update intro, modules, maintainer profile, and misc"
performs maintenance work on the DAMON documentation (SeongJae Park)
- "mm: add and use vma_assert_stabilised() helper" refactors and cleans
up the core VMA code. The main aim here is to be able to use the mmap
write lock's lockdep state to perform various assertions regarding
the locking which the VMA code requires (Lorenzo Stoakes)
- "mm, swap: swap table phase II: unify swapin use" removes some old
swap code (swap cache bypassing and swap synchronization) which
wasn't working very well. Various other cleanups and simplifications
were made. The end result is a 20% speedup in one benchmark (Kairui
Song)
- "enable PT_RECLAIM on more 64-bit architectures" makes PT_RECLAIM
available on 64-bit alpha, loongarch, mips, parisc, and um. Various
cleanups were performed along the way (Qi Zheng)
* tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (325 commits)
mm/memory: handle non-split locks correctly in zap_empty_pte_table()
mm: move pte table reclaim code to memory.c
mm: make PT_RECLAIM depends on MMU_GATHER_RCU_TABLE_FREE
mm: convert __HAVE_ARCH_TLB_REMOVE_TABLE to CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE config
um: mm: enable MMU_GATHER_RCU_TABLE_FREE
parisc: mm: enable MMU_GATHER_RCU_TABLE_FREE
mips: mm: enable MMU_GATHER_RCU_TABLE_FREE
LoongArch: mm: enable MMU_GATHER_RCU_TABLE_FREE
alpha: mm: enable MMU_GATHER_RCU_TABLE_FREE
mm: change mm/pt_reclaim.c to use asm/tlb.h instead of asm-generic/tlb.h
mm/damon/stat: remove __read_mostly from memory_idle_ms_percentiles
zsmalloc: make common caches global
mm: add SPDX id lines to some mm source files
mm/zswap: use %pe to print error pointers
mm/vmscan: use %pe to print error pointers
mm/readahead: fix typo in comment
mm: khugepaged: fix NR_FILE_PAGES and NR_SHMEM in collapse_file()
mm: refactor vma_map_pages to use vm_insert_pages
mm/damon: unify address range representation with damon_addr_range
mm/cma: replace snprintf with strscpy in cma_new_area
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
"A set of fixes to shutdown fsnotify subsystem before invalidating
dcache thus addressing some nasty possible races"
* tag 'fsnotify_for_v6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fsnotify: Shutdown fsnotify before destroying sb's dcache
fsnotify: Use connector list for destroying inode marks
fsnotify: Track inode connectors for a superblock
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Pull fsverity updates from Eric Biggers:
"fsverity cleanups, speedup, and memory usage optimization from
Christoph Hellwig:
- Move some logic into common code
- Fix btrfs to reject truncates of fsverity files
- Improve the readahead implementation
- Store each inode's fsverity_info in a hash table instead of using a
pointer in the filesystem-specific part of the inode.
This optimizes for memory usage in the usual case where most files
don't have fsverity enabled.
- Look up the fsverity_info fewer times during verification, to
amortize the hash table overhead"
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
fsverity: remove inode from fsverity_verification_ctx
fsverity: use a hashtable to find the fsverity_info
btrfs: consolidate fsverity_info lookup
f2fs: consolidate fsverity_info lookup
ext4: consolidate fsverity_info lookup
fs: consolidate fsverity_info lookup in buffer.c
fsverity: push out fsverity_info lookup
fsverity: deconstify the inode pointer in struct fsverity_info
fsverity: kick off hash readahead at data I/O submission time
ext4: move ->read_folio and ->readahead to readpage.c
readahead: push invalidate_lock out of page_cache_ra_unbounded
fsverity: don't issue readahead for non-ENOENT errors from __filemap_get_folio
fsverity: start consolidating pagecache code
fsverity: pass struct file to ->write_merkle_tree_block
f2fs: don't build the fsverity work handler for !CONFIG_FS_VERITY
ext4: don't build the fsverity work handler for !CONFIG_FS_VERITY
fs,fsverity: clear out fsverity_info from common code
fs,fsverity: reject size changes on fsverity files in setattr_prepare
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Pull nfsd updates from Chuck Lever:
"Neil Brown and Jeff Layton contributed a dynamic thread pool sizing
mechanism for NFSD. The sunrpc layer now tracks minimum and maximum
thread counts per pool, and NFSD adjusts running thread counts based
on workload: idle threads exit after a timeout when the pool exceeds
its minimum, and new threads spawn automatically when all threads are
busy. Administrators control this behavior via the nfsdctl netlink
interface.
Rick Macklem, FreeBSD NFS maintainer, generously contributed server-
side support for the POSIX ACL extension to NFSv4, as specified in
draft-ietf-nfsv4-posix-acls. This extension allows NFSv4 clients to
get and set POSIX access and default ACLs using native NFSv4
operations, eliminating the need for sideband protocols. The feature
is gated by a Kconfig option since the IETF draft has not yet been
ratified.
Chuck Lever delivered numerous improvements to the xdrgen tool. Error
reporting now covers parsing, AST transformation, and invalid
declarations. Generated enum decoders validate incoming values against
valid enumerator lists. New features include pass-through line support
for embedding C directives in XDR specifications, 16-bit integer
types, and program number definitions. Several code generation issues
were also addressed.
When an administrator revokes NFSv4 state for a filesystem via the
unlock_fs interface, ongoing async COPY operations referencing that
filesystem are now cancelled, with CB_OFFLOAD callbacks notifying
affected clients.
The remaining patches in this pull request are clean-ups and minor
optimizations. Sincere thanks to all contributors, reviewers, testers,
and bug reporters who participated in the v7.0 NFSD development cycle"
* tag 'nfsd-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (45 commits)
NFSD: Add POSIX ACL file attributes to SUPPATTR bitmasks
NFSD: Add POSIX draft ACL support to the NFSv4 SETATTR operation
NFSD: Add support for POSIX draft ACLs for file creation
NFSD: Add support for XDR decoding POSIX draft ACLs
NFSD: Refactor nfsd_setattr()'s ACL error reporting
NFSD: Do not allow NFSv4 (N)VERIFY to check POSIX ACL attributes
NFSD: Add nfsd4_encode_fattr4_posix_access_acl
NFSD: Add nfsd4_encode_fattr4_posix_default_acl
NFSD: Add nfsd4_encode_fattr4_acl_trueform_scope
NFSD: Add nfsd4_encode_fattr4_acl_trueform
Add RPC language definition of NFSv4 POSIX ACL extension
NFSD: Add a Kconfig setting to enable support for NFSv4 POSIX ACLs
xdrgen: Implement pass-through lines in specifications
nfsd: cancel async COPY operations when admin revokes filesystem state
nfsd: add controls to set the minimum number of threads per pool
nfsd: adjust number of running nfsd threads based on activity
sunrpc: allow svc_recv() to return -ETIMEDOUT and -EBUSY
sunrpc: split new thread creation into a separate function
sunrpc: introduce the concept of a minimum number of threads per pool
sunrpc: track the max number of requested threads in a pool
...
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Now that all the callers of __blkdev_issue_discard() have been changed
to ignore its return value, change its return type from int to void.
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core & protocols:
- A significant effort all around the stack to guide the compiler to
make the right choice when inlining code, to avoid unneeded calls
for small helper and stack canary overhead in the fast-path.
This generates better and faster code with very small or no text
size increases, as in many cases the call generated more code than
the actual inlined helper.
- Extend AccECN implementation so that is now functionally complete,
also allow the user-space enabling it on a per network namespace
basis.
- Add support for memory providers with large (above 4K) rx buffer.
Paired with hw-gro, larger rx buffer sizes reduce the number of
buffers traversing the stack, dincreasing single stream CPU usage
by up to ~30%.
- Do not add HBH header to Big TCP GSO packets. This simplifies the
RX path, the TX path and the NIC drivers, and is possible because
user-space taps can now interpret correctly such packets without
the HBH hint.
- Allow IPv6 routes to be configured with a gateway address that is
resolved out of a different interface than the one specified,
aligning IPv6 to IPv4 behavior.
- Multi-queue aware sch_cake. This makes it possible to scale the
rate shaper of sch_cake across multiple CPUs, while still enforcing
a single global rate on the interface.
- Add support for the nbcon (new buffer console) infrastructure to
netconsole, enabling lock-free, priority-based console operations
that are safer in crash scenarios.
- Improve the TCP ipv6 output path to cache the flow information,
saving cpu cycles, reducing cache line misses and stack use.
- Improve netfilter packet tracker to resolve clashes for most
protocols, avoiding unneeded drops on rare occasions.
- Add IP6IP6 tunneling acceleration to the flowtable infrastructure.
- Reduce tcp socket size by one cache line.
- Notify neighbour changes atomically, avoiding inconsistencies
between the notification sequence and the actual states sequence.
- Add vsock namespace support, allowing complete isolation of vsocks
across different network namespaces.
- Improve xsk generic performances with cache-alignment-oriented
optimizations.
- Support netconsole automatic target recovery, allowing netconsole
to reestablish targets when underlying low-level interface comes
back online.
Driver API:
- Support for switching the working mode (automatic vs manual) of a
DPLL device via netlink.
- Introduce PHY ports representation to expose multiple front-facing
media ports over a single MAC.
- Introduce "rx-polarity" and "tx-polarity" device tree properties,
to generalize polarity inversion requirements for differential
signaling.
- Add helper to create, prepare and enable managed clocks.
Device drivers:
- Add Huawei hinic3 PF etherner driver.
- Add DWMAC glue driver for Motorcomm YT6801 PCIe ethernet
controller.
- Add ethernet driver for MaxLinear MxL862xx switches
- Remove parallel-port Ethernet driver.
- Convert existing driver timestamp configuration reporting to
hwtstamp_get and remove legacy ioctl().
- Convert existing drivers to .get_rx_ring_count(), simplifing the RX
ring count retrieval. Also remove the legacy fallback path.
- Ethernet high-speed NICs:
- Broadcom (bnxt, bng):
- bnxt: add FW interface update to support FEC stats histogram
and NVRAM defragmentation
- bng: add TSO and H/W GRO support
- nVidia/Mellanox (mlx5):
- improve latency of channel restart operations, reducing the
used H/W resources
- add TSO support for UDP over GRE over VLAN
- add flow counters support for hardware steering (HWS) rules
- use a static memory area to store headers for H/W GRO,
leading to 12% RX tput improvement
- Intel (100G, ice, idpf):
- ice: reorganizes layout of Tx and Rx rings for cacheline
locality and utilizes __cacheline_group* macros on the new
layouts
- ice: introduces Synchronous Ethernet (SyncE) support
- Meta (fbnic):
- adds debugfs for firmware mailbox and tx/rx rings vectors
- Ethernet virtual:
- geneve: introduce GRO/GSO support for double UDP encapsulation
- Ethernet NICs consumer, and embedded:
- Synopsys (stmmac):
- some code refactoring and cleanups
- RealTek (r8169):
- add support for RTL8127ATF (10G Fiber SFP)
- add dash and LTR support
- Airoha:
- AN8811HB 2.5 Gbps phy support
- Freescale (fec):
- add XDP zero-copy support
- Thunderbolt:
- add get link setting support to allow bonding
- Renesas:
- add support for RZ/G3L GBETH SoC
- Ethernet switches:
- Maxlinear:
- support R(G)MII slow rate configuration
- add support for Intel GSW150
- Motorcomm (yt921x):
- add DCB/QoS support
- TI:
- icssm-prueth: support bridging (STP/RSTP) via the switchdev
framework
- Ethernet PHYs:
- Realtek:
- enable SGMII and 2500Base-X in-band auto-negotiation
- simplify and reunify C22/C45 drivers
- Micrel: convert bindings to DT schema
- CAN:
- move skb headroom content into skb extensions, making CAN
metadata access more robust
- CAN drivers:
- rcar_canfd:
- add support for FD-only mode
- add support for the RZ/T2H SoC
- sja1000: cleanup the CAN state handling
- WiFi:
- implement EPPKE/802.1X over auth frames support
- split up drop reasons better, removing generic RX_DROP
- additional FTM capabilities: 6 GHz support, supported number of
spatial streams and supported number of LTF repetitions
- better mac80211 iterators to enumerate resources
- initial UHR (Wi-Fi 8) support for cfg80211/mac80211
- WiFi drivers:
- Qualcomm/Atheros:
- ath11k: support for Channel Frequency Response measurement
- ath12k: a significant driver refactor to support multi-wiphy
devices and and pave the way for future device support in the
same driver (rather than splitting to ath13k)
- ath12k: support for the QCC2072 chipset
- Intel:
- iwlwifi: partial Neighbor Awareness Networking (NAN) support
- iwlwifi: initial support for U-NII-9 and IEEE 802.11bn
- RealTek (rtw89):
- preparations for RTL8922DE support
- Bluetooth:
- implement setsockopt(BT_PHY) to set the connection packet type/PHY
- set link_policy on incoming ACL connections
- Bluetooth drivers:
- btusb: add support for MediaTek7920, Realtek RTL8761BU and 8851BE
- btqca: add WCN6855 firmware priority selection feature"
* tag 'net-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1254 commits)
bnge/bng_re: Add a new HSI
net: macb: Fix tx/rx malfunction after phy link down and up
af_unix: Fix memleak of newsk in unix_stream_connect().
net: ti: icssg-prueth: Add optional dependency on HSR
net: dsa: add basic initial driver for MxL862xx switches
net: mdio: add unlocked mdiodev C45 bus accessors
net: dsa: add tag format for MxL862xx switches
dt-bindings: net: dsa: add MaxLinear MxL862xx
selftests: drivers: net: hw: Modify toeplitz.c to poll for packets
octeontx2-pf: Unregister devlink on probe failure
net: renesas: rswitch: fix forwarding offload statemachine
ionic: Rate limit unknown xcvr type messages
tcp: inet6_csk_xmit() optimization
tcp: populate inet->cork.fl.u.ip6 in tcp_v6_syn_recv_sock()
tcp: populate inet->cork.fl.u.ip6 in tcp_v6_connect()
ipv6: inet6_csk_xmit() and inet6_csk_update_pmtu() use inet->cork.fl.u.ip6
ipv6: use inet->cork.fl.u.ip6 and np->final in ip6_datagram_dst_update()
ipv6: use np->final in inet6_sk_rebuild_header()
ipv6: add daddr/final storage in struct ipv6_pinfo
net: stmmac: qcom-ethqos: fix qcom_ethqos_serdes_powerup()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DT core:
- Sync dtc/libfdt with upstream v1.7.2-62-ga26ef6400bd8
- Add a for_each_compatible_node_scoped() loop and convert users in
cpufreq, dmaengine, clk, cdx, powerpc and Arm
- Simplify of/platform.c with scoped loop helpers
- Add fw_devlink tracking for "mmc-pwrseq"
- Optimize fw_devlink callback code size for pinctrl-N properties
- Replace strcmp_suffix() with strends()
DT bindings:
- Support building single binding targets
- Convert google,goldfish-fb, cznic,turris-mox-rwtm, ti,prm-inst
- Add bindings for Freescale AVIC, Realtek RTD1xxx system
controllers, Microchip 25AA010A EEPROM, OnSemi FIN3385, IEI
WT61P803 PUZZLE, Delta Electronics DPS-800-AB power supply,
Infineon IR35221 Digital Multi-phase Controller, Infineon PXE1610
Digital Dual Output 6+1 VR12.5 & VR13 CPU Controller,
socionext,uniphier-smpctrl, and xlnx,zynqmp-firmware
- Lots of trivial binding fixes to address warnings in DTS files.
These are mostly for arm64 platforms which is getting closer to be
warning free. Some public shaming has helped.
- Fix I2C bus node names in examples
- Drop obsolete brcm,vulcan-soc binding
- Drop unreferenced binding headers"
* tag 'devicetree-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (60 commits)
dt-bindings: interrupt-controller: Add compatiblie string fsl,imx(1|25|27|31|35)-avic
dt-bindings: soc: imx: add fsl,aips and fsl,emi compatible strings
dt-bindings: display: bridge: lt8912b: Drop reset gpio requirement
dt-bindings: firmware: fsl,scu: Mark multi-channel MU layouts as deprecated
cpufreq: s5pv210: Simplify with scoped for each OF child loop
dmaengine: fsl_raid: Simplify with scoped for each OF child loop
clk: imx: imx31: Simplify with scoped for each OF child loop
clk: imx: imx27: Simplify with scoped for each OF child loop
cdx: Use mutex guard to simplify error handling
cdx: Simplify with scoped for each OF child loop
powerpc/wii: Simplify with scoped for each OF child loop
powerpc/fsp2: Simplify with scoped for each OF child loop
ARM: exynos: Simplify with scoped for each OF child loop
ARM: at91: Simplify with scoped for each OF child loop
of: Add for_each_compatible_node_scoped() helper
dt-bindings: Fix emails with spaces or missing brackets
scripts/dtc: Update to upstream version v1.7.2-62-ga26ef6400bd8
dt-bindings: crypto: inside-secure,safexcel: Mandate only ring IRQs
dt-bindings: crypto: inside-secure,safexcel: Add SoC compatibles
of: reserved_mem: Fix placement of __free() annotation
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"Bus:
- Ensure bus->match() is consistently called with the device lock
held
- Improve type safety of bus_find_device_by_acpi_dev()
Devtmpfs:
- Parse 'devtmpfs.mount=' boot parameter with kstrtoint() instead of
simple_strtoul()
- Avoid sparse warning by making devtmpfs_context_ops static
IOMMU:
- Do not register the qcom_smmu_tbu_driver in arm_smmu_device_probe()
MAINTAINERS:
- Add the new driver-core mailing list (driver-core@lists.linux.dev)
to all relevant entries
- Add missing tree location for "FIRMWARE LOADER (request_firmware)"
- Add driver-model documentation to the "DRIVER CORE" entry
- Add missing driver-core maintainers to the "AUXILIARY BUS" entry
Misc:
- Change return type of attribute_container_register() to void; it
has always been infallible
- Do not export sysfs_change_owner(), sysfs_file_change_owner() and
device_change_owner()
- Move devres_for_each_res() from the public devres header to
drivers/base/base.h
- Do not use a static struct device for the faux bus; allocate it
dynamically
Revocable:
- Patches for the revocable synchronization primitive have been
scheduled for v7.0-rc1, but have been reverted as they need some
more refinement
Rust:
- Device:
- Support dev_printk on all device types, not just the core Device
struct; remove now-redundant .as_ref() calls in dev_* print
calls
- Devres:
- Introduce an internal reference count in Devres<T> to avoid a
deadlock condition in case of (indirect) nesting
- DMA:
- Allow drivers to tune the maximum DMA segment size via
dma_set_max_seg_size()
- I/O:
- Introduce the concept of generic I/O backends to handle
different kinds of device shared memory through a common
interface.
This enables higher-level concepts such as register
abstractions, I/O slices, and field projections to be built
generically on top.
In a first step, introduce the Io, IoCapable<T>, and IoKnownSize
trait hierarchy for sharing a common interface supporting offset
validation and bound-checking logic between I/O backends.
- Refactor MMIO to use the common I/O backend infrastructure
- Misc:
- Add __rust_helper annotations to C helpers for inlining into
Rust code
- Use "kernel vertical" style for imports
- Replace kernel::c_str! with C string literals
- Update ARef imports to use sync::aref
- Use pin_init::zeroed() for struct auxiliary_device_id and
debugfs file_operations initialization
- Use LKMM atomic types in debugfs doc-tests
- Various minor comment and documentation fixes
- PCI:
- Implement PCI configuration space accessors using the common I/O
backend infrastructure
- Document pci::Bar device endianness assumptions
- SoC:
- Abstractions for struct soc_device and struct soc_device_attribute
- Sample driver for soc::Device"
* tag 'driver-core-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (79 commits)
rust: devres: fix race condition due to nesting
rust: dma: add missing __rust_helper annotations
samples: rust: pci: Remove some additional `.as_ref()` for `dev_*` print
Revert "revocable: Revocable resource management"
Revert "revocable: Add Kunit test cases"
Revert "selftests: revocable: Add kselftest cases"
driver core: remove device_change_owner() export
sysfs: remove exports of sysfs_*change_owner()
driver core: disable revocable code from build
revocable: Add KUnit test for concurrent access
revocable: fix SRCU index corruption by requiring caller-provided storage
revocable: Add KUnit test for provider lifetime races
revocable: Fix races in revocable_alloc() using RCU
driver core: fix inverted "locked" suffix of driver_match_device()
rust: io: move MIN_SIZE and io_addr_assert to IoKnownSize
rust: pci: re-export ConfigSpace
rust: dma: allow drivers to tune max segment size
gpu: tyr: remove redundant `.as_ref()` for `dev_*` print
rust: auxiliary: use `pin_init::zeroed()` for device ID
rust: debugfs: use pin_init::zeroed() for file_operations
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Don't try to enable Extended Tags on VFs since that bit is Reserved
and causes misleading log messages (Håkon Bugge)
- Initialize Endpoint Read Completion Boundary to match Root Port,
regardless of ACPI _HPX (Håkon Bugge)
- Apply _HPX PCIe Setting Record only to AER configuration, and only
when OS owns PCIe hotplug but not AER, to avoid clobbering Extended
Tag and Relaxed Ordering settings (Håkon Bugge)
Resource management:
- Move CardBus code to setup-cardbus.c and only build it when
CONFIG_CARDBUS is set (Ilpo Järvinen)
- Fix bridge window alignment with optional resources, where
additional alignment requirement was previously lost (Ilpo
Järvinen)
- Stop over-estimating bridge window size since they are now assigned
without any gaps between them (Ilpo Järvinen)
- Increase resource MAX_IORES_LEVEL to avoid /proc/iomem flattening
for nested bridges and endpoints (Ilpo Järvinen)
- Add pbus_mem_size_optional() to handle sizes of optional resources
(SR-IOV VF BARs, expansion ROMs, bridge windows) (Ilpo Järvinen)
- Don't claim disabled bridge windows to avoid spurious claim
failures (Ilpo Järvinen)
Driver binding:
- Fix device reference leak in pcie_port_remove_service() (Uwe
Kleine-König)
- Move pcie_port_bus_match() and pcie_port_bus_type to PCIe-specific
portdrv.c (Uwe Kleine-König)
- Convert portdrv to use pcie_port_bus_type.probe() and .remove()
callbacks so .probe() and .remove() can eventually be removed from
struct device_driver (Uwe Kleine-König)
Error handling:
- Clear stale errors on reporting agents upon probe so they don't
look like recent errors (Lukas Wunner)
- Add generic RAS tracepoint for hotplug events (Shuai Xue)
- Add RAS tracepoint for link speed changes (Shuai Xue)
Power management:
- Avoid redundant delay on transition from D3hot to D3cold if the
device was already in D3hot (Brian Norris)
- Prevent runtime suspend until devices are fully initialized to
avoid saving incompletely configured device state (Brian Norris)
Power control:
- Add power_on/off callbacks with generic signature to pwrseq,
tc9563, and slot drivers so they can be used by pwrctrl core
(Manivannan Sadhasivam)
- Add PCIe M.2 connector support to the slot pwrctrl driver
(Manivannan Sadhasivam)
- Switch to pwrctrl interfaces to create, destroy, and power on/off
devices, calling them from host controller drivers instead of the
PCI core (Manivannan Sadhasivam)
- Drop qcom .assert_perst() callbacks since this is now done by the
controller driver instead of the pwrctrl driver (Manivannan
Sadhasivam)
Virtualization:
- Remove an incorrect unlock in pci_slot_trylock() error handling
(Jinhui Guo)
- Lock the bridge device for slot reset (Keith Busch)
- Enable ACS after IOMMU configuration on OF platforms so ACS is
enabled an all devices; previously the first device enumerated
(typically a Root Port) didn't have ACS enabled (Manivannan
Sadhasivam)
- Disable ACS Source Validation for IDT 0x80b5 and 0x8090 switches to
work around hardware erratum; previously ACS SV was only
temporarily disabled, which worked for enumeration but not after
reset (Manivannan Sadhasivam)
Peer-to-peer DMA:
- Release per-CPU pgmap ref when vm_insert_page() fails to avoid hang
when removing the PCI device (Hou Tao)
- Remove incorrect p2pmem_alloc_mmap() warning about page refcount
(Hou Tao)
Endpoint framework:
- Add configfs sub-groups synchronously to avoid NULL pointer
dereference when racing with removal (Liu Song)
- Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink()
functions (Manikanta Maddireddy)
ASPEED PCIe controller driver:
- Add ASPEED Root Complex DT binding and driver (Jacky Chou)
Freescale i.MX6 PCIe controller driver:
- Add DT binding and driver support for an optional external refclock
in addition to the refclock from the internal PLL (Richard Zhu)
- Fix CLKREQ# control so host asserts it during enumeration and
Endpoints can use it afterwards to exit the L1.2 link state
(Richard Zhu)
NVIDIA Tegra PCIe controller driver:
- Export irq_domain_free_irqs() to allow PCI/MSI drivers that tear
down MSI domains to be built as modules (Aaron Kling)
- Allow pci-tegra to be built as a module (Aaron Kling)
NVIDIA Tegra194 PCIe controller driver:
- Relax Kconfig so tegra194 can be built for platforms beyond
Tegra194 (Vidya Sagar)
Qualcomm PCIe controller driver:
- Merge SC8180x DT binding into SM8150 (Krzysztof Kozlowski)
- Move SDX55, SDM845, QCS404, IPQ5018, IPQ6018, IPQ8074 Gen3,
IPQ8074, IPQ4019, IPQ9574, APQ8064, MSM8996, APQ8084 to dedicated
schema (Krzysztof Kozlowski)
- Add DT binding and driver support for SA8255p Endpoint being
configured by firmware (Mrinmay Sarkar)
- Parse PERST# from all PCIe bridge nodes for future platforms that
will have PERST# in Switch Downstream Ports as well as in Root
Ports (Manivannan Sadhasivam)
Renesas RZ/G3S PCIe controller driver:
- Use pci_generic_config_write() since the writability provided by
the custom wrapper is unnecessary (Claudiu Beznea)
SOPHGO PCIe controller driver:
- Disable ASPM L0s and L1 on Sophgo 2044 PCIe Root Ports (Inochi
Amaoto)
Synopsys DesignWare PCIe controller driver:
- Extend PCI_FIND_NEXT_CAP() and PCI_FIND_NEXT_EXT_CAP() to return a
pointer to the preceding Capability, to allow removal of
Capabilities that are advertised but not fully implemented (Qiang
Yu)
- Remove MSI and MSI-X Capabilities in platforms that can't support
them, so the PCI core automatically falls back to INTx (Qiang Yu)
- Add ASPM L1.1 and L1.2 Substates context to debugfs ltssm_status
for drivers that support this (Shawn Lin)
- Skip PME_Turn_Off broadcast and L2/L3 transition during suspend if
link is not up to avoid an unnecessary timeout (Manivannan
Sadhasivam)
- Revert dw-rockchip, qcom, and DWC core changes that used link-up
IRQs to trigger enumeration instead of waiting for link to be up
because the PCI core doesn't allocate bus number space for
hierarchies that might be attached (Niklas Cassel)
- Make endpoint iATU entry for MSI permanent instead of programming
it dynamically, which is slow and racy with respect to other
concurrent traffic, e.g., eDMA (Koichiro Den)
- Use iMSI-RX MSI target address when possible to fix endpoints using
32-bit MSI (Shawn Lin)
- Allow DWC host controller driver probe to continue if device is not
found or found but inactive; only fail when there's an error with
the link (Manivannan Sadhasivam)
- For controllers like NXP i.MX6QP and i.MX7D, where LTSSM registers
are not accessible after PME_Turn_Off, simply wait 10ms instead of
polling for L2/L3 Ready (Richard Zhu)
- Use multiple iATU entries to map large bridge windows and DMA
ranges when necessary instead of failing (Samuel Holland)
- Add EPC dynamic_inbound_mapping feature bit for Endpoint
Controllers that can update BAR inbound address translation without
requiring EPF driver to clear/reset the BAR first, and advertise it
for DWC-based Endpoints (Koichiro Den)
- Add EPC subrange_mapping feature bit for Endpoint Controllers that
can map multiple independent inbound regions in a single BAR,
implement subrange mapping, advertise it for DWC-based Endpoints,
and add Endpoint selftests for it (Koichiro Den)
- Make resizable BARs work for Endpoint multi-PF configurations;
previously it only worked for PF 0 (Aksh Garg)
- Fix Endpoint non-PF 0 support for BAR configuration, ATU mappings,
and Address Match Mode (Aksh Garg)
- Set up iATU when ECAM is enabled; previously IO and MEM outbound
windows weren't programmed, and ECAM-related iATU entries weren't
restored after suspend/resume, so config accesses failed (Krishna
Chaitanya Chundru)
Miscellaneous:
- Use system_percpu_wq and WQ_PERCPU to explicitly request per-CPU
work so WQ_UNBOUND can eventually be removed (Marco Crivellari)"
* tag 'pci-v7.0-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (176 commits)
PCI/bwctrl: Disable BW controller on Intel P45 using a quirk
PCI: Disable ACS SV for IDT 0x8090 switch
PCI: Disable ACS SV for IDT 0x80b5 switch
PCI: Cache ACS Capabilities register
PCI: Enable ACS after configuring IOMMU for OF platforms
PCI: Add ACS quirk for Pericom PI7C9X2G404 switches [12d8:b404]
PCI: Add ACS quirk for Qualcomm Hamoa & Glymur
PCI: Use device_lock_assert() to verify device lock is held
PCI: Use lockdep_assert_held(pci_bus_sem) to verify lock is held
PCI: Fix pci_slot_lock () device locking
PCI: Fix pci_slot_trylock() error handling
PCI: Mark Nvidia GB10 to avoid bus reset
PCI: Mark ASM1164 SATA controller to avoid bus reset
PCI: host-generic: Avoid reporting incorrect 'missing reg property' error
PCI/PME: Replace RMW of Root Status register with direct write
PCI/AER: Clear stale errors on reporting agents upon probe
PCI: Don't claim disabled bridge windows
PCI: rzg3s-host: Fix device node reference leak in rzg3s_pcie_host_parse_port()
PCI: dwc: Fix missing iATU setup when ECAM is enabled
PCI: dwc: Clean up iATU index usage in dw_pcie_iatu_setup()
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Joerg Roedel:
"Core changes:
- Rust bindings for IO-pgtable code
- IOMMU page allocation debugging support
- Disable ATS during PCI resets
Intel VT-d changes:
- Skip dev-iotlb flush for inaccessible PCIe device
- Flush cache for PASID table before using it
- Use right invalidation method for SVA and NESTED domains
- Ensure atomicity in context and PASID entry updates
AMD-Vi changes:
- Support for nested translations
- Other minor improvements
ARM-SMMU-v2 changes:
- Configure SoC-specific prefetcher settings for Qualcomm's "MDSS"
ARM-SMMU-v3 changes:
- Improve CMDQ locking fairness for pathetically small queue sizes
- Remove tracking of the IAS as this is only relevant for AArch32 and
was causing C_BAD_STE errors
- Add device-tree support for NVIDIA's CMDQV extension
- Allow some hitless transitions for the 'MEV' and 'EATS' STE fields
- Don't disable ATS for nested S1-bypass nested domains
- Additions to the kunit selftests"
* tag 'iommu-updates-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (54 commits)
iommupt: Always add IOVA range to iotlb_gather in gather_range_pages()
iommu/amd: serialize sequence allocation under concurrent TLB invalidations
iommu/amd: Fix type of type parameter to amd_iommufd_hw_info()
iommu/arm-smmu-v3: Do not set disable_ats unless vSTE is Translate
iommu/arm-smmu-v3-test: Add nested s1bypass/s1dssbypass coverage
iommu/arm-smmu-v3: Mark EATS_TRANS safe when computing the update sequence
iommu/arm-smmu-v3: Mark STE MEV safe when computing the update sequence
iommu/arm-smmu-v3: Add update_safe bits to fix STE update sequence
iommu/arm-smmu-v3: Add device-tree support for CMDQV driver
iommu/tegra241-cmdqv: Decouple driver from ACPI
iommu/arm-smmu-qcom: Restore ACTLR settings for MDSS on sa8775p
iommu/vt-d: Fix race condition during PASID entry replacement
iommu/vt-d: Clear Present bit before tearing down context entry
iommu/vt-d: Clear Present bit before tearing down PASID entry
iommu/vt-d: Flush piotlb for SVM and Nested domain
iommu/vt-d: Flush cache for PASID table before using it
iommu/vt-d: Flush dev-IOTLB only when PCIe device is accessible in scalable mode
iommu/vt-d: Skip dev-iotlb flush for inaccessible PCIe device without scalable mode
rust: iommu: fix `srctree` link warning
rust: iommu: fix Rust formatting
...
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git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
- Check all mandatory callbacks when registering nbcon consoles
- Fix some compiler warnings
* tag 'printk-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
vsnprintf: drop __printf() attributes on binary printing functions
printf: convert test_hashed into macro
printk: nbcon: Check for device_{lock,unlock} callbacks
|
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git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
- The percpu sheaves caching layer was introduced as opt-in in 6.18 and
now we enable it for all caches and remove the previous cpu (partial)
slab caching mechanism.
Besides the lower locking overhead and much more likely fastpath when
freeing, this removes the rather complicated code related to the cpu
slab lockless fastpaths (using this_cpu_try_cmpxchg128/64) and all
its complications for PREEMPT_RT or kmalloc_nolock().
The lockless slab freelist+counters update operation using
try_cmpxchg128/64 remains and is crucial for freeing remote NUMA
objects, and to allow flushing objects from sheaves to slabs mostly
without the node list_lock (Vlastimil Babka)
- Eliminate slabobj_ext metadata overhead when possible. Instead of
using kmalloc() to allocate the array for memcg and/or allocation
profiling tag pointers, use leftover space in a slab or per-object
padding due to alignment (Harry Yoo)
- Various followup improvements to the above (Hao Li)
* tag 'slab-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (39 commits)
slub: let need_slab_obj_exts() return false if SLAB_NO_OBJ_EXT is set
mm/slab: only allow SLAB_OBJ_EXT_IN_OBJ for unmergeable caches
mm/slab: place slabobj_ext metadata in unused space within s->size
mm/slab: move [__]ksize and slab_ksize() to mm/slub.c
mm/slab: save memory by allocating slabobj_ext array from leftover
mm/memcontrol,alloc_tag: handle slabobj_ext access under KASAN poison
mm/slab: use stride to access slabobj_ext
mm/slab: abstract slabobj_ext access via new slab_obj_ext() helper
ext4: specify the free pointer offset for ext4_inode_cache
mm/slab: allow specifying free pointer offset when using constructor
mm/slab: use unsigned long for orig_size to ensure proper metadata align
slub: clarify object field layout comments
mm/slab: avoid allocating slabobj_ext array from its own slab
slub: avoid list_lock contention from __refill_objects_any()
mm/slub: cleanup and repurpose some stat items
mm/slub: remove DEACTIVATE_TO_* stat items
slab: remove frozen slab checks from __slab_free()
slab: update overview comments
slab: refill sheaves from all nodes
slab: remove unused PREEMPT_RT specific macros
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild/Kconfig updates from Nathan Chancellor:
"Kbuild:
- Drop '*_probe' pattern from modpost section check allowlist, which
hid legitimate warnings (Johan Hovold)
- Disable -Wtype-limits altogether, instead of enabling at W=2
(Vincent Mailhol)
- Improve UAPI testing to skip testing headers that require a libc
when CONFIG_CC_CAN_LINK is not set, opening up testing of headers
with no libc dependencies to more environments (Thomas Weißschuh)
- Update gendwarfksyms documentation with required dependencies
(Jihan LIN)
- Reject invalid LLVM= values to avoid unintentionally falling back
to system toolchain (Thomas Weißschuh)
- Add a script to help run the kernel build process in a container
for consistent environments and testing (Guillaume Tucker)
- Simplify kallsyms by getting rid of the relative base (Ard
Biesheuvel)
- Performance and usability improvements to scripts/make_fit.py
(Simon Glass)
- Minor various clean ups and fixes
Kconfig:
- Move XPM icons to individual files, clearing up GTK deprecation
warnings (Rostislav Krasny)
- Support
depends on FOO if BAR
as syntactic sugar for
depends on FOO || !BAR
(Nicolas Pitre, Graham Roff)
- Refactor merge_config.sh to use awk over shell/sed/grep,
dramatically speeding up processing large number of config
fragments (Anders Roxell, Mikko Rapeli)"
* tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (39 commits)
kbuild: remove dependency of run-command on config
scripts/make_fit: Compress dtbs in parallel
scripts/make_fit: Support a few more parallel compressors
kbuild: Support a FIT_EXTRA_ARGS environment variable
scripts/make_fit: Move dtb processing into a function
scripts/make_fit: Support an initial ramdisk
scripts/make_fit: Speed up operation
rust: kconfig: Don't require RUST_IS_AVAILABLE for rustc-option
MAINTAINERS: Add scripts/install.sh into Kbuild entry
modpost: Amend ppc64 save/restfpr symnames for -Os build
MIPS: tools: relocs: Ship a definition of R_MIPS_PC32
streamline_config.pl: remove superfluous exclamation mark
kbuild: dummy-tools: Add python3
scripts: kconfig: merge_config.sh: warn on duplicate input files
scripts: kconfig: merge_config.sh: use awk in checks too
scripts: kconfig: merge_config.sh: refactor from shell/sed/grep to awk
kallsyms: Get rid of kallsyms relative base
mips: Add support for PC32 relocations in vmlinux
Documentation: dev-tools: add container.rst page
scripts: add tool to run containerized builds
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
- cpuset changes:
- Continue separating v1 and v2 implementations by moving more
v1-specific logic into cpuset-v1.c
- Improve partition handling. Sibling partitions are no longer
invalidated on cpuset.cpus conflict, cpuset.cpus changes no longer
fail in v2, and effective_xcpus computation is made consistent
- Fix partition effective CPUs overlap that caused a warning on
cpuset removal when sibling partitions shared CPUs
- Increase the maximum cgroup subsystem count from 16 to 32 to
accommodate future subsystem additions
- Misc cleanups and selftest improvements including switching to
css_is_online() helper, removing dead code and stale documentation
references, using lockdep_assert_cpuset_lock_held() consistently, and
adding polling helpers for asynchronously updated cgroup statistics
* tag 'cgroup-for-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (21 commits)
cpuset: fix overlap of partition effective CPUs
cgroup: increase maximum subsystem count from 16 to 32
cgroup: Remove stale cpu.rt.max reference from documentation
cpuset: replace direct lockdep_assert_held() with lockdep_assert_cpuset_lock_held()
cgroup/cpuset: Move the v1 empty cpus/mems check to cpuset1_validate_change()
cgroup/cpuset: Don't invalidate sibling partitions on cpuset.cpus conflict
cgroup/cpuset: Don't fail cpuset.cpus change in v2
cgroup/cpuset: Consistently compute effective_xcpus in update_cpumasks_hier()
cgroup/cpuset: Streamline rm_siblings_excl_cpus()
cpuset: remove dead code in cpuset-v1.c
cpuset: remove v1-specific code from generate_sched_domains
cpuset: separate generate_sched_domains for v1 and v2
cpuset: move update_domain_attr_tree to cpuset_v1.c
cpuset: add cpuset1_init helper for v1 initialization
cpuset: add cpuset1_online_css helper for v1-specific operations
cpuset: add lockdep_assert_cpuset_lock_held helper
cpuset: Remove unnecessary checks in rebuild_sched_domains_locked
cgroup: switch to css_is_online() helper
selftests: cgroup: Replace sleep with cg_read_key_long_poll() for waiting on nr_dying_descendants
selftests: cgroup: make test_memcg_sock robust against delayed sock stats
...
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|
Pull drm updates from Dave Airlie:
"Highlights:
- amdgpu support for lots of new IP blocks which means newer GPUs
- xe has a lot of SR-IOV and SVM improvements
- lots of intel display refactoring across i915/xe
- msm has more support for gen8 platforms
- Given up on kgdb/kms integration, it's too hard on modern hw
core:
- drop kgdb support
- replace system workqueue with percpu
- account for property blobs in memcg
- MAINTAINERS updates for xe + buddy
rust:
- Fix documentation for Registration constructors
- Use pin_init::zeroed() for fops initialization
- Annotate DRM helpers with __rust_helper
- Improve safety documentation for gem::Object::new()
- Update AlwaysRefCounted imports
- mm: Prevent integer overflow in page_align()
atomic:
- add drm_device pointer to drm_private_obj
- introduce gamma/degamma LUT size check
buddy:
- fix free_trees memory leak
- prevent BUG_ON
bridge:
- introduce drm_bridge_unplug/enter/exit
- add connector argument to .hpd_notify
- lots of recounting conversions
- convert rockchip inno hdmi to bridge
- lontium-lt9611uxc: switch to HDMI audio helpers
- dw-hdmi-qp: add support for HPD-less setups
- Algoltek AG6311 support
panels:
- edp: CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H
- st75751: add SPI support
- Sitronix ST7920, Samsung LTL106HL02
- LG LH546WF1-ED01, HannStar HSD156J
- BOE NV130WUM-T08
- Innolux G150XGE-L05
- Anbernic RG-DS
dma-buf:
- improve sg_table debugging
- add tracepoints
- call clear_page instead of memset
- start to introduce cgroup memory accounting in heaps
- remove sysfs stats
dma-fence:
- add new helpers
dp:
- mst: avoid oob access with vcpi=0
hdmi:
- limit infoframes exposure to userspace
gem:
- reduce page table overhead with THP
- fix leak in drm_gem_get_unmapped_area
gpuvm:
- API sanitation for rust bindings
sched:
- introduce new helpers
panic:
- report invalid panic modes
- add kunit tests
i915/xe display:
- Expose sharpness only if num_scalers is >= 2
- Add initial Xe3P_LPD for NVL
- BMG FBC support
- Add MTL+ platforms to support dpll framework
_ fix DIMM_S DRM decoding on ICL
- Return to using AUX interrupts
- PSR/Panel replay refactoring
- use consolidation HDMI tables
- Xe3_LPD CD2X dividier changes
xe:
- vfio: add vfio_pci for intel GPU
- multi queue support
- dynamic pagemaps and multi-device SVM
- expose temp attribs in hwmon
- NO_COMPRESSION bo flag
- expose MERT OA unit
- sysfs survivability refactor
- SRIOV PF: add MERT support
- enable SR-IOV VF migration
- Enable I2C/NVM on Crescent Island
- Xe3p page reclaimation support
- introduce SRIOV scheduler groups
- add SoC remappt support in system controller
- insert compiler barriers in GuC code
- define NVL GuC firmware
- handle GT resume failure
- fix drm scheduler layering violations
- enable GSC loading and PXP for PTL
- disable GuC Power DCC strategy on PTL
- unregister drm device on probe error
i915:
- move to kernel standard fault injection
- bump recommended GuC version for DG2 and MTL
amdgpu:
- SMUIO 15.x, PSP 15.x support
- IH 6.1.1/7.1 support
- MMHUB 3.4/4.2 support
- GC 11.5.4/12.1 support
- SDMA 6.1.4/7.1/7.11.4 support
- JPEG 5.3 support
- UserQ updates
- GC 9 gfx queue reset support
- TTM memory ops parallelization
- convert legacy logging to new helpers
- DC analog fixes
amdkfd:
- GC 11.5.4/12.1 suppport
- SDMA 6.1.4/7.1 support
- per context support
- increase kfd process hash table
- Reserved SDMA rework
radeon:
- convert legacy logging to new helpers
- use devm for i2c adapters
msm:
- GPU
- Document a612/RGMU dt bindings
- UBWC 6.0 support (for A840 / Kaanapali)
- a225 support
- DPU:
- Switch to use virtual planes by default
- Fix DSI CMD panels on DPU 3.x
- Rewrite format handling to remove intermediate representation
- Fix watchdog on DPU 8.x+
- Fix TE / Vsync source setting on DPU 8.x+
- Add 3D_Mux on SC7280
- Kaanapali platform support
- Fix UBWC register programming
- Make RM reserve DSPP-enabled mixers for CRTCs with LMs
- Gamma correction support
- DP:
- Enable support for eDP 1.4+ link rate tables
- Fix MDSS1 DP indices on SA8775P, making them to work
- Fix msm_dp_ctrl_config_msa() to work with LLVM 20
- DSI:
- Document QCS8300 as compatible with SA8775P
- Kaanapali platform support
- DSI PHY:
- switch to divider_determine_rate()
- MDP5:
- Drop support for MSM8998, SDM660 and SDM630 (switch over to DPU)
- MDSS:
- Kaanapali platform support
- Fixed UBWC register programming
nova-core:
- Prepare for Turing support. This includes parsing and handling
Turing-specific firmware headers and sections as well as a Turing
Falcon HAL implementation
- Get rid of the Result<impl PinInit<T, E>> anti-pattern
- Relocate initializer-specific code into the appropriate initializer
- Use CStr::from_bytes_until_nul() to remove custom helpers
- Improve handling of unexpected firmware values
- Clean up redundant debug prints
- Replace c_str!() with native Rust C-string literals
- Update nova-core task list
nova:
- Align GEM object size to system page size
tyr:
- Use generated uAPI bindings for GpuInfo
- Replace manual sleeps with read_poll_timeout()
- Replace c_str!() with native Rust C-string literals
- Suppress warnings for unread fields
- Fix incorrect register name in print statement
nouveau:
- fix big page table support races in PTE management
- improve reclocking on tegra 186+
amdxdna:
- fix suspend race conditions
- improve handling of zero tail pointers
- fix cu_idx overwritten during command setup
- enable hardware context priority
- remove NPU2 support
- update message buffer allocation requirements
- update firmware version check
ast:
- support imported cursor buffers
- big endian fixes
etnaviv:
- add PPU flop reset support
imagination:
- add AM62P support
- introduce hw version checks
ivpu:
- implement warm boot flow
panfrost:
- add bo sync ioctl
- add GPU_PM_RT support for RZ/G3E SoC
panthor:
- add bo sync ioctl
- enable timestamp propagation
- scheduler robustness improvements
- VM termination fixes
- huge page support
rockchip:
- RK3368 HDMI Support
- get rid of atomic_check fixups
- RK3506 support
- RK3576/RK3588 improved HPD handling
rz-du:
- RZ/V2H(P) MIPI-DSI Support
v3d:
- fix DMA segment size
- convert to new logging helpers
mediatek:
- move DP training to hotplug thread
- convert logging to new helpers
- add support for HS speed DSI
- Genio 510/700/1200-EVK, Radxa NIO-12L HDMI support
atmel-hlcdc:
- switch to drmm resource
- support nomodeset
- use newer helpers
hisilicon:
- fix various DP bugs
renesas:
- fix kernel panic on reboot
exynos:
- fix vidi_connection_ioctl using wrong device
- fix vidi_connection deref user ptr
- fix concurrency regression with vidi_context
vkms:
- add configfs support for display configuration
* tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernel: (1610 commits)
drm/xe/pm: Disable D3Cold for BMG only on specific platforms
drm/xe: Fix kerneldoc for xe_tlb_inval_job_alloc_dep
drm/xe: Fix kerneldoc for xe_gt_tlb_inval_init_early
drm/xe: Fix kerneldoc for xe_migrate_exec_queue
drm/xe/query: Fix topology query pointer advance
drm/xe/guc: Fix kernel-doc warning in GuC scheduler ABI header
drm/xe/guc: Fix CFI violation in debugfs access.
accel/amdxdna: Move RPM resume into job run function
accel/amdxdna: Fix incorrect DPM level after suspend/resume
nouveau/vmm: start tracking if the LPT PTE is valid. (v6)
nouveau/vmm: increase size of vmm pte tracker struct to u32 (v2)
nouveau/vmm: rewrite pte tracker using a struct and bitfields.
accel/amdxdna: Fix incorrect error code returned for failed chain command
accel/amdxdna: Remove hardware context status
drm/bridge: imx8qxp-pixel-combiner: Fix bailout for imx8qxp_pc_bridge_probe()
drm/panel: ilitek-ili9882t: Remove duplicate initializers in tianma_il79900a_dsc
drm/i915/display: fix the pixel normalization handling for xe3p_lpd
drm/exynos: vidi: use ctx->lock to protect struct vidi_context member variables related to memory alloc/free
drm/exynos: vidi: fix to avoid directly dereferencing user pointer
drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- Add support for GMSL1 and GMSL‑coax modules (PCI mgb4)
- Add driver for TI VIP
- AV1 – first kernel support (pixel‑format, decoder, transcoder)
- Three new camera‑sensor drivers (os05b10, s5k3m5, s5kjn1)
- Synopsys CSI‑2 receiver driver
- Verisilicon & rkvdec – major fixes and enhancements
- IPU6 (and 7) fixes and preparation for metadata
- omap3isp: v4l2-compliance updates
- Fix DVB streaming, drop wait_prepare/finish (dvb/vb2)
* tag 'media/v7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (307 commits)
media: uvcvideo: Pass allocation size directly to uvc_alloc_urb_buffer
media: uvcvideo: Fix allocation for small frame sizes
media: uvcvideo: Return queued buffers on start_streaming() failure
media: uvcvideo: Create an ID namespace for streaming output terminals
media: rkvdec: Add HEVC support for the VDPU383 variant
media: rkvdec: Add HEVC support for the VDPU381 variant
media: rkvdec: Add H264 support for the VDPU383 variant
media: rkvdec: Add H264 support for the VDPU381 variant
media: rkvdec: Disable multicore support
media: rkvdec: Enable all clocks without naming them
media: rkvdec: Support per-variant interrupt handler
media: rkvdec: Add RCB and SRAM support
media: rkvdec: Add variant specific coded formats list
media: rkvdec: Move hevc functions to common file
media: rkvdec: Move h264 functions to common file
media: rkvdec: Use structs to represent the HW RPS
media: rkvdec: Move cabac tables to their own source file
media: rkvdec: Switch to using structs instead of writel
media: visl: Add HEVC short and long term RPS sets
media: v4l2-ctrls: Add hevc_ext_sps_[ls]t_rps controls
...
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|
The RAPL MSR read path incorrectly validates CPU context when called
from the PMU subsystem:
if (atomic) {
if (unlikely(smp_processor_id() != cpu))
return -EIO;
rdmsrq(ra->reg.msr, ra->value);
}
This check fails for package-scoped MSRs like RAPL energy counters,
which are readable from any CPU within the package.
The perf tool avoids hitting this check by validating against
/sys/bus/event_source/devices/power/cpumask before opening events.
However, turbostat does not perform this validation and may attempt
reads from non-lead CPUs, causing the check to fail and return zero
power values.
Since package-scoped MSRs are architecturally accessible from any CPU
in the package, remove the CPU matching check.
Also rename 'atomic' to 'pmu_ctx' to clarify this indicates PMU context
where rdmsrq() can be used directly instead of rdmsrl_safe_on_cpu().
Fixes: 748d6ba43afd ("powercap: intel_rapl: Enable MSR-based RAPL PMU support")
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Tested-by: Furquim Ulisses <ulisses.furquim@intel.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20260209234310.1440722-2-sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's been relatively calm for a new era; majority of changes are for
ASoC, mostly device-specific changes, while there are a bit of
cleanups in core stuff. A few SPI API and regmap updates are included
to be used by sound drivers, too.
Core:
- A few trivial cleanups about __free() and runtime PM macros
- Convert to new snd_seq_bus binding
ASoC:
- Generic SDCA support for reporting jack events
- Continuing platform support, cleanup and feature improvements for
AMD, Intel, Qualcomm and SOF code
- Platform description improvements for the Cirrus drivers
- Support for NXP i.MX952, Realtek RT1320 and RT5575, and Sophogo
CV1800B
HD- and USB-audio:
- Many quirks as usual"
* tag 'sound-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (341 commits)
ALSA: usb-audio: Add DSD support for iBasso DC04U
ALSA: mixer: oss: Add card disconnect checkpoints
ASoC: SOF: ipc4-control: Set correct error code in refresh_bytes_control
ASoC: SOF: Intel: select CONFIG_SND_HDA_EXT_CORE from SND_SOC_SOF_HDA_COMMON
ALSA: usb-audio: Add iface reset and delay quirk for AB13X USB Audio
ASoC: amd: maintainer information
ALSA: ctxfi: Add quirk for SE-300PCIE variant (160b:0102)
ALSA: hda/generic: fix typos in comments
ALSA: hda/realtek - Enable mute LEDs on HP ENVY x360 15-es0xxx
ALSA: hda/conexant: Add quirk for HP ZBook Studio G4
ASoC: fsl_asrc_dma: allocate memory from dma device
ASoC: fsl_asrc: Add support for i.MX952 platform
ASoC: fsl_asrc_m2m: Add option to start ASRC before DMA device for M2M
ASoC: dt-bindings: fsl,imx-asrc: Add support for i.MX952 platform
ALSA: oss: delete self assignment
ASoC: rockchip: spdif: Convert to FIELD_PREP
ASoC: rockchip: spdif: Fill IEC958 CS info per params
ASoC: rockchip: spdif: Add support for format S32_LE
ASoC: rockchip: spdif: Add support for set mclk rate
ASoC: rockchip: spdif: Swap PCM and DAI component registration order
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Takashi Sakamoto:
- Refactor page allocation dedicated to 1394 OHCI IR/IT/AR DMA contexts
Although 1394 OHCI specification does not impose any restriction on
the memory size dedicated to these DMA contexts, 1394 OHCI PCI driver
allocates pages for convenience when mapping them into either kernel
space or userspace VMA. The driver previously used dma_alloc_pages()
for both page allocation and mapping creation, even though this
kernel API is rarely used. Following discussions questioning the
page-oriented kernel API in the DMA layer, the driver has been
refactored to avoid using this API. In addition, the use of private
members in the allocated pages has been removed following
long-standing concern.
- Allocate variable-sized buffer for isochronous context header
1394 OHCI PCI driver previously allocated a single page for
isochronous context header. As a result, the buffer size for the
header was fixed to PAGE_SIZE, which imposed a limitation on IEC
61883-1/6 packet streaming engine. Consequently, the ALSA PCM devices
provided by drivers for audio and music units in IEEE 1394 bus were
constrained in the maximum size of buffer period (64 ms in most
cases). This limitation is resolved by dynamically allocating the
header buffer with an arbitrary size.
* tag 'firewire-updates-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
ALSA: firewire: remove PCM buffer size constraint from isoc context header
firewire: core: add fw_iso_context_create() variant with header storage size
firewire: core: provide isoc header buffer size outside card driver
firewire: ohci: allocate isoc context header by kvmalloc()
firewire: core: add flags member for isochronous context structure
firewire: ohci: use cleanup helper for isoc context header allocation
firewire: ohci: code refactoring to use union for isoc multiple channel state
firewire: ohci: refactor isoc single-channel state using a union
firewire: core: add function variants for isochronous context creation
firewire: ohci: fix index of pages for dma address to 1394 OHCI IT context
firewire: ohci: stop using page private to store DMA mapping address
firewire: ohci: split page allocation from dma mapping
firewire: ohci: use MAX macro to guarantee minimum count of pages for AR contexts
firewire: core: stop using page private to store DMA mapping address
firewire: core: use common kernel API to allocate and release a batch of pages
firewire: core: code refactoring with cleanup function for isoc pages
firewire: core: use mutex instead of spinlock for client isochronous context
firewire: core: move private function declaration from public header to internal header
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- global switch of HID drivers to use pm_*ptr instead of #ifdef
CONFIG_PM* (Bastien Nocera)
- support for new firmware handling in intel-ish-hid (Vishnu Sankar)
- support for HID output reports in the Quicki2c in intel-thc (Even Xu)
- solidify register configuration updates in intel-thc (Even Xu)
- Support for Rock band 4 PS4 and PS5 guitars (Rosalie Wanders)
- fn lock and WMI fan control handling improvements in certain Asus
models (ROG, ProArt P16) (Ionut Nechita, Connor Belli)
- fix for potential NULL pointer dereference during warm reset in
intel-ish-hid (Ryan Lin)
- fix for potential NULL pointer derefence in probe error paths in
hid-pl (Oliver Neukum)
- various other small assorted fixes and new device ID additions /
device-specific quirks
* tag 'hid-for-linus-2026020901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (41 commits)
HID: sony: add dongle device IDs for CRKD Gibson SG
HID: Intel-thc-hid: Intel-thc: Fix wrong register fields updating
HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients
HID: logitech-hidpp: Add support for Logitech K980
HID: logitech-dj: Differentiate "invalid device index" error
HID: sony: Use pm_ptr instead of #ifdef CONFIG_PM
HID: wacom: Use pm_ptr instead of #ifdef CONFIG_PM
HID: uclogic: Use pm_ptr instead of #ifdef CONFIG_PM
HID: hid-sensor-hub: Use pm_ptr instead of #ifdef CONFIG_PM
HID: picolcd_core: Use pm_ptr instead of #ifdef CONFIG_PM
HID: nintendo: Use pm_ptr instead of #ifdef CONFIG_PM
HID: logitech-dj: Use pm_ptr instead of #ifdef CONFIG_PM
HID: lenovo: Use pm_ptr instead of #ifdef CONFIG_PM
HID: asus: Use pm_ptr instead of #ifdef CONFIG_PM
HID: appletb-kbd: Use pm_ptr instead of #ifdef CONFIG_PM
HID: hid-alps: Use pm_ptr instead of #ifdef CONFIG_PM
HID: multitouch: add eGalaxTouch EXC3188 support
HID: elecom: Add support for ELECOM HUGE Plus M-HT1MRBK
HID: sony: add support for bluetooth Rock Band 4 PS4 guitars
HID: logitech-hidpp: Check maxfield in hidpp_get_report_length()
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"There are two new drivers and some changes to GPIO core but mostly
just GPIO driver updates across a wide array of files, adding support
for new models as well as various refactoring changes. Nothing
controversial and everything has spent a good measure of time in
linux-next.
GPIOLIB core:
- shrink the GPIO bus driver stub code
- rework software node support for "undefined" software nodes
- provide and use devm_fwnode_gpiod_get_optional()
- only compile the OF quirk for MT2701 when needed
New drivers:
- add the GPIO driver for ROHM bd72720
- add the gpio-line-mux driver providing 1-to-many mapping for a
single real GPIO
Driver changes:
- refactor gpio-pca9570: use lock guard, add missing headers, use
devres consistently
- add support for a new model (G7 Aspeed sgpiom) to the aspeed-sgpio
driver along with some prerequisite refactoring
- use device_get_match_data() where applicable and save some lines
- add support for more models to gpio-cadence
- add the compatible property to reset-gpio and use it in shared GPIO
management
- drop unnecessary use of irqd_get_trigger_type() in gpio-max77759
- add support for a new variant to gpio-pca953x
- extend build coverage with COMPILE_TEST for more drivers
- constify configfs structures in gpio-sim and gpio-virtuser
- add support for the K3 SoC to gpio-spacemit
- implement the missing .get_direction() callback in gpio-max77620
- add support for Tegra264 to gpio-tegra186
- drop unneeded MODULE_ALIAS() from gpio-menz127
DT bindings:
- document support for the opencores GPIO controller in gpio-mmio
- document new variants for gpio-pca953x
Documentation:
- extensively describe interrupt source detection for gpio-pca953x
and add more models to the list of supported variants"
* tag 'gpio-updates-for-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (59 commits)
gpio: tegra186: Add support for Tegra264
dt-bindings: gpio: Add Tegra264 support
gpio: spacemit-k1: Use PDR for pin direction, not SDR/CDR
gpio: max77620: Implement .get_direction() callback
gpio: aspeed-sgpio: Support G7 Aspeed sgpiom controller
dt-bindings: gpio: aspeed,sgpio: Support ast2700
gpio: aspeed-sgpio: Convert IRQ functions to use llops callbacks
gpio: aspeed-sgpio: Create llops to handle hardware access
gpio: aspeed-sgpio: Remove unused bank name field
gpio: aspeed-sgpio: Change the macro to support deferred probe
regulator: bd71815: switch to devm_fwnode_gpiod_get_optional
gpiolib: introduce devm_fwnode_gpiod_get_optional() wrapper
gpio: mmio: Add compatible for opencores GPIO
dt-bindings: gpio-mmio: Correct opencores GPIO
gpio: pca9570: use lock guards
gpio: pca9570: Don't use "proxy" headers
gpio: pca9570: Use devm_mutex_init() for mutex initialization
MAINTAINERS: Add ROHM BD72720 PMIC
power: supply: bd71828-power: Support ROHM BD72720
power: supply: bd71828: Support wider register addresses
...
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|
https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
- gmap rewrite: completely new memory management for kvm/s390
- vSIE improvement
- maintainership change for s390 vfio-pci
- small quality of life improvement for protected guests
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|
KVM mediated PMU support for 6.20
Add support for mediated PMUs, where KVM gives the guest full ownership of PMU
hardware (contexted switched around the fastpath run loop) and allows direct
access to data MSRs and PMCs (restricted by the vPMU model), but intercepts
access to control registers, e.g. to enforce event filtering and to prevent the
guest from profiling sensitive host state.
To keep overall complexity reasonable, mediated PMU usage is all or nothing
for a given instance of KVM (controlled via module param). The Mediated PMU
is disabled default, partly to maintain backwards compatilibity for existing
setup, partly because there are tradeoffs when running with a mediated PMU that
may be non-starters for some use cases, e.g. the host loses the ability to
profile guests with mediated PMUs, the fastpath run loop is also a blind spot,
entry/exit transitions are more expensive, etc.
Versus the emulated PMU, where KVM is "just another perf user", the mediated
PMU delivers more accurate profiling and monitoring (no risk of contention and
thus dropped events), with significantly less overhead (fewer exits and faster
emulation/programming of event selectors) E.g. when running Specint-2017 on
a single-socket Sapphire Rapids with 56 cores and no-SMT, and using perf from
within the guest:
Perf command:
a. basic-sampling: perf record -F 1000 -e 6-instructions -a --overwrite
b. multiplex-sampling: perf record -F 1000 -e 10-instructions -a --overwrite
Guest performance overhead:
---------------------------------------------------------------------------
| Test case | emulated vPMU | all passthrough | passthrough with |
| | | | event filters |
---------------------------------------------------------------------------
| basic-sampling | 33.62% | 4.24% | 6.21% |
---------------------------------------------------------------------------
| multiplex-sampling | 79.32% | 7.34% | 10.45% |
---------------------------------------------------------------------------
|
|
KVM x86 APIC-ish changes for 6.20
- Fix a benign bug where KVM could use the wrong memslots (ignored SMM) when
creating a vCPU-specific mapping of guest memory.
- Clean up KVM's handling of marking mapped vCPU pages dirty.
- Drop a pile of *ancient* sanity checks hidden behind in KVM's unused
ASSERT() macro, most of which could be trivially triggered by the guest
and/or user, and all of which were useless.
- Fold "struct dest_map" into its sole user, "struct rtc_status", to make it
more obvious what the weird parameter is used for, and to allow burying the
RTC shenanigans behind CONFIG_KVM_IOAPIC=y.
- Bury all of ioapic.h and KVM_IRQCHIP_KERNEL behind CONFIG_KVM_IOAPIC=y.
- Add a regression test for recent APICv update fixes.
- Rework KVM's handling of VMCS updates while L2 is active to temporarily
switch to vmcs01 instead of deferring the update until the next nested
VM-Exit. The deferred updates approach directly contributed to several
bugs, was proving to be a maintenance burden due to the difficulty in
auditing the correctness of deferred updates, and was polluting
"struct nested_vmx" with a growing pile of booleans.
- Handle "hardware APIC ISR", a.k.a. SVI, updates in kvm_apic_update_apicv()
to consolidate the updates, and to co-locate SVI updates with the updates
for KVM's own cache of ISR information.
- Drop a dead function declaration.
|
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KVM guest_memfd changes for 6.20
- Remove kvm_gmem_populate()'s preparation tracking and half-baked hugepage
handling, and instead rely on SNP (the only user of the tracking) to do its
own tracking via the RMP.
- Retroactively document and enforce (for SNP) that KVM_SEV_SNP_LAUNCH_UPDATE
and KVM_TDX_INIT_MEM_REGION require the source page to be 4KiB aligned, to
avoid non-trivial complexity for a non-existent usecase (and because
in-place conversion simply can't support unaligned sources).
- When populating guest_memfd memory, GUP the source page in common code and
pass the refcounted page to the vendor callback, instead of letting vendor
code do the heavy lifting. Doing so avoids a looming deadlock bug with
in-place due an AB-BA conflict betwee mmap_lock and guest_memfd's filemap
invalidate lock.
|
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KVM/riscv changes for 6.20
- Fixes for issues discoverd by KVM API fuzzing in
kvm_riscv_aia_imsic_has_attr(), kvm_riscv_aia_imsic_rw_attr(),
and kvm_riscv_vcpu_aia_imsic_update()
- Allow Zalasr, Zilsd and Zclsd extensions for Guest/VM
- Add riscv vm satp modes in KVM selftests
- Transparent huge page support for G-stage
- Adjust the number of available guest irq files based on
MMIO register sizes in DeviceTree or ACPI
|
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"The highlight here is that David Lechner has added support for
multi-lane SPI devices. Unlike the existing dual/quad SPI support this
is for devices (typically ADCs/DACs) which support multiple
independent data streams over multiple data lanes, instead of sending
one data stream N times as fast they simultaneously transfer N
different data streams.
This is very similar to the case where multiple devices are grouped
together but in this case it's a single device in a way that's visible
to software.
Otherwise there's been quite a bit of work on existing drivers, both
cleanup and feature improvement, and a reasonable collection of new
drivers.
- Support for multi-lane SPI devices
- Preparatory work for some memory mapped flash improvements that
will happen in the MTD subsystem
- Several conversions to fwnode APIs
- A bunch of cleanup and hardening work on the ST drivers
- Support for DMA mode on Renesas RZV2H and i.MX target mode
- Support for ATCSPI200, AXIADO AX300, NXP XPI and Renesas RZ/N1"
* tag 'spi-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (108 commits)
spi: tools: Add include folder to .gitignore
spi: cadence-qspi: Add support for the Renesas RZ/N1 controller
spi: cadence-qspi: Kill cqspi_jh7110_clk_init
spi: dt-bindings: cdns,qspi-nor: Add Renesas RZ/N1D400 to the list
spi: geni-qcom: Add target abort support
spi: geni-qcom: Drop unused msg parameter from timeout handlers
spi: geni-qcom: Fix abort sequence execution for serial engine errors
spi: geni-qcom: Improve target mode allocation by using proper allocation functions
spi: xilinx: use device property accessors.
dt-bindings: spi: Add binding for Faraday FTSSP010
spi: axi-spi-engine: support SPI_MULTI_LANE_MODE_STRIPE
spi: dt-bindings: adi,axi-spi-engine: add multi-lane support
spi: Documentation: add page on multi-lane support
spi: add multi_lane_mode field to struct spi_transfer
spi: support controllers with multiple data lanes
spi: dt-bindings: add spi-{tx,rx}-lane-map properties
spi: dt-bindings: change spi-{rx,tx}-bus-width to arrays
spi: dw: Remove not-going-to-be-supported code for Baikal SoC
spi: cadence-qspi: Use a default value for cdns,fifo-width
spi: cadence-qspi: Make sure write protection is disabled
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"There's a bunch of new drivers here, plus a lot of hardening for the
supply resolution code which allow us to support systems where we have
two PMICs each of which has regulators supplied by the other. This did
work a long time ago but got broken as part of improved integration
with the device model, it's fairly rare so nobody noticed.
- Improvements for supply handling from André Draszik to allow
systems with two PMICs with supply/consumer relationships in both
directions to instantiate.
- New drivers for Maxim MAX776750, Realtek RT8902, Samsung S2MPG11,
Texas Instuments TPS65185.
This have also pulls in some MFD updates which are build dependencies
for the Samsung S2MPG11 support"
* tag 'regulator-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (42 commits)
regulator: s2mps11: more descriptive gpio consumer name
regulator: s2mps11: add S2MPG11 regulator
regulator: s2mps11: refactor S2MPG10 regulator macros for S2MPG11 reuse
regulator: s2mps11: refactor S2MPG10 ::set_voltage_time() for S2MPG11 reuse
regulator: s2mps11: add S2MPG10 regulator
regulator: s2mps11: refactor handling of external rail control
regulator: s2mps11: update node parsing (allow -supply properties)
regulator: s2mps11: place constants on right side of comparison tests
regulator: s2mps11: use dev_err_probe() where appropriate
regulator: s2mps11: drop two needless variable initialisations
regulator: add REGULATOR_LINEAR_VRANGE macro
regulator: dt-bindings: add s2mpg11-pmic regulators
regulator: dt-bindings: add s2mpg10-pmic regulators
dt-bindings: firmware: google,gs101-acpm-ipc: convert regulators to lowercase
mfd: sec: Add support for S2MPG11 PMIC via ACPM
mfd: sec: s2mpg10: Reorder regulators for better probe performance
dt-bindings: mfd: Add samsung,s2mpg11-pmic
dt-bindings: mfd: samsung,s2mpg10-pmic: Link to its regulators
dt-bindings: mfd: samsung,s2mps11: Split s2mpg10-pmic into separate file
mfd: sec: Drop now unused struct sec_pmic_dev::irq_data
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"The main change here is the implementation of a mechanism for
generating register defaults via a callback rather than with a table
in the driver.
This is useful for devices where there are large ranges of registers
with the same or generated values, it allows us to have a small amount
of code instead of a larger amount of default data"
* tag 'regmap-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regcache: Demote defaults readback from HW to debug print
regmap: add KUnit coverage for reg_default_cb callback
regmap: Add reg_default_cb callback for flat cache defaults
regmap: Enable REGMAP when REGMAP_SLIMBUS is enabled
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Tzung-Bi Shih:
"New cros_ec_lightbar features:
- Report the number of exposed LED segments via sysfs
- Support large sequence of program to be transmitted
Fixes:
- Don't touch fwnode_handle::dev which is a private field
- Fix wrong assignment for response size in cros_ec_lightbar
Cleanups:
- Use acpi_get_local_u64_address() helper"
* tag 'chrome-platform-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: lightbar: Use flexible array member
platform/chrome: lightbar: Fix lightbar_program_ex alignment
platform/chrome: lightbar: Add support for large sequence
platform/chrome: lightbar: Report number of segments
platform/chrome: cros_ec_lightbar: Fix response size initialization
platform/chrome: cros_typec_switch: Use acpi_get_local_u64_address()
platform/chrome: cros_typec_switch: Don't touch struct fwnode_handle::dev
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The HSI is shared between the firmware and the driver and is
automatically generated.
Add a new HSI for the BNGE driver. The current HSI refers to BNXT,
which will become incompatible with ThorUltra devices as the
BNGE driver adds more features. The BNGE driver will not use the HSI
located in the bnxt folder.
Also, add an HSI for ThorUltra RoCE driver.
Changes in v3:
- Fix in bng_roce_hsi.h reported by Jakub (AI review)
https://lore.kernel.org/netdev/20260207051422.4181717-1-kuba@kernel.org/
- Add an entry in MAINTAINERS
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com>
Reviewed-by: Bhargava Chenna Marreddy <bhargava.marreddy@broadcom.com>
Link: https://patch.msgid.link/20260208172925.1861255-1-vikas.gupta@broadcom.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add helper inline functions __mdiodev_c45_read() and
__mdiodev_c45_write(), which are the C45 equivalents of the existing
__mdiodev_read() and __mdiodev_write() added by commit e6a45700e7e1
("net: mdio: add unlocked mdiobus and mdiodev bus accessors")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/8d1d55949a75a871d2a3b90e421de4bd58d77685.1770433307.git.daniel@makrotopia.org
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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For common cases (HZ=100, 250 or 1000), these helpers are at most one
multiply, so there is no point calling a tiny function.
Keep them out of line for HZ=300 and others.
This saves cycles in TCP fast path, among other things.
$ scripts/bloat-o-meter -t vmlinux.old vmlinux.new
add/remove: 0/8 grow/shrink: 25/89 up/down: 530/-3474 (-2944)
...
nla_put_msecs 193 - -193
message_stats_print 2131 920 -1211
Total: Before=25365208, After=25362264, chg -0.01%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260210170226.57209-1-edumazet@google.com
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates for 7.0
- Implement masked user access
- Add bpf support for internal only per-CPU instructions and inline the
bpf_get_smp_processor_id() and bpf_get_current_task() functions
- Fix pSeries MSI-X allocation failure when quota is exceeded
- Fix recursive pci_lock_rescan_remove locking in EEH event handling
- Support tailcalls with subprogs & BPF exceptions on 64bit
- Extend "trusted" keys to support the PowerVM Key Wrapping Module
(PKWM)
Thanks to Abhishek Dubey, Christophe Leroy, Gaurav Batra, Guangshuo Li,
Jarkko Sakkinen, Mahesh Salgaonkar, Mimi Zohar, Miquel Sabaté Solà, Nam
Cao, Narayana Murty N, Nayna Jain, Nilay Shroff, Puranjay Mohan, Saket
Kumar Bhaskar, Sourabh Jain, Srish Srinivasan, and Venkat Rao Bagalkote.
* tag 'powerpc-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (27 commits)
powerpc/pseries: plpks: export plpks_wrapping_is_supported
docs: trusted-encryped: add PKWM as a new trust source
keys/trusted_keys: establish PKWM as a trusted source
pseries/plpks: add HCALLs for PowerVM Key Wrapping Module
pseries/plpks: expose PowerVM wrapping features via the sysfs
powerpc/pseries: move the PLPKS config inside its own sysfs directory
pseries/plpks: fix kernel-doc comment inconsistencies
powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()
powerpc: kgdb: Remove OUTBUFMAX constant
powerpc64/bpf: Additional NVR handling for bpf_throw
powerpc64/bpf: Support exceptions
powerpc64/bpf: Add arch_bpf_stack_walk() for BPF JIT
powerpc64/bpf: Avoid tailcall restore from trampoline
powerpc64/bpf: Support tailcalls with subprogs
powerpc64/bpf: Moving tail_call_cnt to bottom of frame
powerpc/eeh: fix recursive pci_lock_rescan_remove locking in EEH event handling
powerpc/pseries: Fix MSI-X allocation failure when quota is exceeded
powerpc/iommu: bypass DMA APIs for coherent allocations for pre-mapped memory
powerpc64/bpf: Inline bpf_get_smp_processor_id() and bpf_get_current_task/_btf()
powerpc64/bpf: Support internal-only MOV instruction to resolve per-CPU addrs
...
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After commit b409a7f7176b ("ipv6: colocate inet6_cork in
inet_cork_full") we have room in ipv6_pinfo to hold daddr/final
in case they need to be populated in fl6_update_dst() calls.
This will allow stack canary removal in IPv6 tx fast paths.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260206173426.1638518-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"There are are a number of to firmware drivers, in particular the TEE
subsystem:
- a bus callback for TEE firmware that device drivers can register to
- sysfs support for tee firmware information
- minor updates to platform specific TEE drivers for AMD, NXP,
Qualcomm and the generic optee driver
- ARM SCMI firmware refactoring to improve the protocol discover
among other fixes and cleanups
- ARM FF-A firmware interoperability improvements
The reset controller and memory controller subsystems gain support for
additional hardware platforms from Mediatek, Renesas, NXP, Canaan and
SpacemiT.
Most of the other changes are for random drivers/soc code. Among a
number of cleanups and newly added hardware support, including:
- Mediatek MT8196 DVFS power management and mailbox support
- Qualcomm SCM firmware and MDT loader refactoring, as part of the
new Glymur platform support.
- NXP i.MX9 System Manager firmware support for accessing the syslog
- Minor updates for TI, Renesas, Samsung, Apple, Marvell and AMD
SoCs"
* tag 'soc-drivers-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (171 commits)
bus: fsl-mc: fix an error handling in fsl_mc_device_add()
reset: spacemit: Add SpacemiT K3 reset driver
reset: spacemit: Extract common K1 reset code
reset: Create subdirectory for SpacemiT drivers
dt-bindings: soc: spacemit: Add K3 reset support and IDs
reset: canaan: k230: drop OF dependency and enable by default
reset: rzg2l-usbphy-ctrl: Add suspend/resume support
reset: rzg2l-usbphy-ctrl: Propagate the return value of regmap_field_update_bits()
reset: gpio: check the return value of gpiod_set_value_cansleep()
reset: imx8mp-audiomix: Support i.MX8ULP SIM LPAV
reset: imx8mp-audiomix: Extend the driver usage
reset: imx8mp-audiomix: Switch to using regmap API
reset: imx8mp-audiomix: Drop unneeded macros
soc: fsl: qe: qe_ports_ic: Consolidate chained IRQ handler install/remove
soc: mediatek: mtk-cmdq: Add mminfra_offset adjustment for DRAM addresses
soc: mediatek: mtk-cmdq: Extend cmdq_pkt_write API for SoCs without subsys ID
soc: mediatek: mtk-cmdq: Add pa_base parsing for hardware without subsys ID support
soc: mediatek: mtk-cmdq: Add cmdq_get_mbox_priv() in cmdq_pkt_create()
mailbox: mtk-cmdq: Add driver data to support for MT8196
mailbox: mtk-cmdq: Add mminfra_offset configuration for DRAM transaction
...
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https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Florian Westphal says:
====================
netfilter: updates for net-next
The following patchset contains Netfilter updates for *net-next*:
1) Fix net-next-only use-after-free bug in nf_tables rbtree set:
Expired elements cannot be released right away after unlink anymore
because there is no guarantee that the binary-search blob is going to
be updated. Spotted by syzkaller.
2) Fix esoteric bug in nf_queue with udp fraglist gro, broken since
6.11. Patch 3 adds extends the nfqueue selftest for this.
4) Use dedicated slab for flowtable entries, currently the -512 cache
is used, which is wasteful. From Qingfang Deng.
5) Recent net-next update extended existing test for ip6ip6 tunnels, add
the required /config entry. Test still passed by accident because the
previous tests network setup gets re-used, so also update the test so
it will fail in case the ip6ip6 tunnel interface cannot be added.
6) Fix 'nft get element mytable myset { 1.2.3.4 }' on big endian
platforms, this was broken since code was added in v5.1.
7) Fix nf_tables counter reset support on 32bit platforms, where counter
reset may cause huge values to appear due to wraparound.
Broken since reset feature was added in v6.11. From Anders Grahn.
8-11) update nf_tables rbtree set type to detect partial
operlaps. This will eventually speed up nftables userspace: at this
time userspace does a netlink dump of the set content which slows down
incremental updates on interval sets. From Pablo Neira Ayuso.
* tag 'nf-next-26-02-06' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: nft_set_rbtree: validate open interval overlap
netfilter: nft_set_rbtree: validate element belonging to interval
netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets
netfilter: nft_set_rbtree: fix bogus EEXIST with NLM_F_CREATE with null interval
netfilter: nft_counter: fix reset of counters on 32bit archs
netfilter: nft_set_hash: fix get operation on big endian
selftests: netfilter: add IPV6_TUNNEL to config
netfilter: flowtable: dedicated slab for flow entry
selftests: netfilter: nft_queue.sh: add udp fraglist gro test case
netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation
netfilter: nft_set_rbtree: don't gc elements on insert
====================
Link: https://patch.msgid.link/20260206153048.17570-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Extend struct printk_info to include the task name, pid, and CPU
number where printk messages originate. This information is captured
at vprintk_store() time and propagated through printk_message to
nbcon_write_context, making it available to nbcon console drivers.
This is useful for consoles like netconsole that want to include
execution context in their output, allowing correlation of messages
with specific tasks and CPUs regardless of where the console driver
actually runs.
The feature is controlled by CONFIG_PRINTK_EXECUTION_CTX, which is
automatically selected by CONFIG_NETCONSOLE_DYNAMIC. When disabled,
the helper functions compile to no-ops with no overhead.
Suggested-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
Link: https://patch.msgid.link/20260206-nbcon-v7-1-62bda69b1b41@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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