| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
When a CPU comes online the first time, it is possible that a new top level
group will be created. In general all propagation is done from the bottom
to top. This minimizes complexity and prevents possible races. But when a
new top level group is created, the formely top level group needs to be
connected to the new level. This is the only time, when the direction to
propagate changes is changed: the changes are propagated from top (new top
level group) to bottom (formerly top level group).
This introduces two races (see (A) and (B)) as reported by Frederic:
(A) This race happens, when marking the formely top level group as active,
but the last active CPU of the formerly top level group goes idle. Then
it's likely that formerly group is no longer active, but marked
nevertheless as active in new top level group:
[GRP0:0]
migrator = 0
active = 0
nextevt = KTIME_MAX
/ \
0 1 .. 7
active idle
0) Hierarchy has for now only 8 CPUs and CPU 0 is the only active CPU.
[GRP1:0]
migrator = TMIGR_NONE
active = NONE
nextevt = KTIME_MAX
\
[GRP0:0] [GRP0:1]
migrator = 0 migrator = TMIGR_NONE
active = 0 active = NONE
nextevt = KTIME_MAX nextevt = KTIME_MAX
/ \
0 1 .. 7 8
active idle !online
1) CPU 8 is booting and creates a new group in first level GRP0:1 and
therefore also a new top group GRP1:0. For now the setup code proceeded
only until the connected between GRP0:1 to the new top group. The
connection between CPU8 and GRP0:1 is not yet established and CPU 8 is
still !online.
[GRP1:0]
migrator = TMIGR_NONE
active = NONE
nextevt = KTIME_MAX
/ \
[GRP0:0] [GRP0:1]
migrator = 0 migrator = TMIGR_NONE
active = 0 active = NONE
nextevt = KTIME_MAX nextevt = KTIME_MAX
/ \
0 1 .. 7 8
active idle !online
2) Setup code now connects GRP0:0 to GRP1:0 and observes while in
tmigr_connect_child_parent() that GRP0:0 is not TMIGR_NONE. So it
prepares to call tmigr_active_up() on it. It hasn't done it yet.
[GRP1:0]
migrator = TMIGR_NONE
active = NONE
nextevt = KTIME_MAX
/ \
[GRP0:0] [GRP0:1]
migrator = TMIGR_NONE migrator = TMIGR_NONE
active = NONE active = NONE
nextevt = KTIME_MAX nextevt = KTIME_MAX
/ \
0 1 .. 7 8
idle idle !online
3) CPU 0 goes idle. Since GRP0:0->parent has been updated by CPU 8 with
GRP0:0->lock held, CPU 0 observes GRP1:0 after calling
tmigr_update_events() and it propagates the change to the top (no change
there and no wakeup programmed since there is no timer).
[GRP1:0]
migrator = GRP0:0
active = GRP0:0
nextevt = KTIME_MAX
/ \
[GRP0:0] [GRP0:1]
migrator = TMIGR_NONE migrator = TMIGR_NONE
active = NONE active = NONE
nextevt = KTIME_MAX nextevt = KTIME_MAX
/ \
0 1 .. 7 8
idle idle !online
4) Now the setup code finally calls tmigr_active_up() to and sets GRP0:0
active in GRP1:0
[GRP1:0]
migrator = GRP0:0
active = GRP0:0, GRP0:1
nextevt = KTIME_MAX
/ \
[GRP0:0] [GRP0:1]
migrator = TMIGR_NONE migrator = 8
active = NONE active = 8
nextevt = KTIME_MAX nextevt = KTIME_MAX
/ \ |
0 1 .. 7 8
idle idle active
5) Now CPU 8 is connected with GRP0:1 and CPU 8 calls tmigr_active_up() out
of tmigr_cpu_online().
[GRP1:0]
migrator = GRP0:0
active = GRP0:0
nextevt = T8
/ \
[GRP0:0] [GRP0:1]
migrator = TMIGR_NONE migrator = TMIGR_NONE
active = NONE active = NONE
nextevt = KTIME_MAX nextevt = T8
/ \ |
0 1 .. 7 8
idle idle idle
5) CPU 8 goes idle with a timer T8 and relies on GRP0:0 as the migrator.
But it's not really active, so T8 gets ignored.
--> The update which is done in third step is not noticed by setup code. So
a wrong migrator is set to top level group and a timer could get
ignored.
(B) Reading group->parent and group->childmask when an hierarchy update is
ongoing and reaches the formerly top level group is racy as those values
could be inconsistent. (The notation of migrator and active now slightly
changes in contrast to the above example, as now the childmasks are used.)
[GRP1:0]
migrator = TMIGR_NONE
active = 0x00
nextevt = KTIME_MAX
\
[GRP0:0] [GRP0:1]
migrator = TMIGR_NONE migrator = TMIGR_NONE
active = 0x00 active = 0x00
nextevt = KTIME_MAX nextevt = KTIME_MAX
childmask= 0 childmask= 1
parent = NULL parent = GRP1:0
/ \
0 1 .. 7 8
idle idle !online
childmask=1
1) Hierarchy has 8 CPUs. CPU 8 is at the moment in the process of onlining
but did not yet connect GRP0:0 to GRP1:0.
[GRP1:0]
migrator = TMIGR_NONE
active = 0x00
nextevt = KTIME_MAX
/ \
[GRP0:0] [GRP0:1]
migrator = TMIGR_NONE migrator = TMIGR_NONE
active = 0x00 active = 0x00
nextevt = KTIME_MAX nextevt = KTIME_MAX
childmask= 0 childmask= 1
parent = GRP1:0 parent = GRP1:0
/ \
0 1 .. 7 8
idle idle !online
childmask=1
2) Setup code (running on CPU 8) now connects GRP0:0 to GRP1:0, updates
parent pointer of GRP0:0 and ...
[GRP1:0]
migrator = TMIGR_NONE
active = 0x00
nextevt = KTIME_MAX
/ \
[GRP0:0] [GRP0:1]
migrator = 0x01 migrator = TMIGR_NONE
active = 0x01 active = 0x00
nextevt = KTIME_MAX nextevt = KTIME_MAX
childmask= 0 childmask= 1
parent = GRP1:0 parent = GRP1:0
/ \
0 1 .. 7 8
active idle !online
childmask=1
tmigr_walk.childmask = 0
3) ... CPU 0 comes active in the same time. As migrator in GRP0:0 was
TMIGR_NONE, childmask of GRP0:0 is stored in update propagation data
structure tmigr_walk (as update of childmask is not yet
visible/updated). And now ...
[GRP1:0]
migrator = TMIGR_NONE
active = 0x00
nextevt = KTIME_MAX
/ \
[GRP0:0] [GRP0:1]
migrator = 0x01 migrator = TMIGR_NONE
active = 0x01 active = 0x00
nextevt = KTIME_MAX nextevt = KTIME_MAX
childmask= 2 childmask= 1
parent = GRP1:0 parent = GRP1:0
/ \
0 1 .. 7 8
active idle !online
childmask=1
tmigr_walk.childmask = 0
4) ... childmask of GRP0:0 is updated by CPU 8 (still part of setup
code).
[GRP1:0]
migrator = 0x00
active = 0x00
nextevt = KTIME_MAX
/ \
[GRP0:0] [GRP0:1]
migrator = 0x01 migrator = TMIGR_NONE
active = 0x01 active = 0x00
nextevt = KTIME_MAX nextevt = KTIME_MAX
childmask= 2 childmask= 1
parent = GRP1:0 parent = GRP1:0
/ \
0 1 .. 7 8
active idle !online
childmask=1
tmigr_walk.childmask = 0
5) CPU 0 sees the connection to GRP1:0 and now propagates active state to
GRP1:0 but with childmask = 0 as stored in propagation data structure.
--> Now GRP1:0 always has a migrator as 0x00 != TMIGR_NONE and for all CPUs
it looks like GRP1:0 is always active.
To prevent those races, the setup of the hierarchy is moved into the
cpuhotplug prepare callback. The prepare callback is not executed by the
CPU which will come online, it is executed by the CPU which prepares
onlining of the other CPU. This CPU is active while it is connecting the
formerly top level to the new one. This prevents from (A) to happen and it
also prevents from any further walk above the formerly top level until that
active CPU becomes inactive, releasing the new ->parent and ->childmask
updates to be visible by any subsequent walk up above the formerly top
level hierarchy. This prevents from (B) to happen. The direction for the
updates is now forced to look like "from bottom to top".
However if the active CPU prevents from tmigr_cpu_(in)active() to walk up
with the update not-or-half visible, nothing prevents walking up to the new
top with a 0 childmask in tmigr_handle_remote_up() or
tmigr_requires_handle_remote_up() if the active CPU doing the prepare is
not the migrator. But then it looks fine because:
* tmigr_check_migrator() should just return false
* The migrator is active and should eventually observe the new childmask
at some point in a future tick.
Split setup functionality of online callback into the cpuhotplug prepare
callback and setup hotplug state. Change init call into early_initcall() to
make sure an already active CPU prepares everything for newly upcoming
CPUs. Reorder the code, that all prepare related functions are close to
each other and online and offline callbacks are also close together.
Fixes: 7ee988770326 ("timers: Implement the hierarchical pull model")
Signed-off-by: Anna-Maria Behnsen <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Frederic Weisbecker <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Add acpi_numa.c file to enable parse NUMA information from
ACPI SRAT and SLIT tables. SRAT table provide CPUs(Hart) and
memory nodes to proximity domain mapping, while SLIT table
provide the distance metrics between proximity domains.
Signed-off-by: Haibo Xu <[email protected]>
Reviewed-by: Sunil V L <[email protected]>
Reviewed-by: Hanjun Guo <[email protected]>
Link: https://lore.kernel.org/r/65dbad1fda08a32922c44886e4581e49b4a2fecc.1718268003.git.haibo1.xu@intel.com
Signed-off-by: Palmer Dabbelt <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- In the series "treewide: Refactor heap related implementation",
Kuan-Wei Chiu has significantly reworked the min_heap library code
and has taught bcachefs to use the new more generic implementation.
- Yury Norov's series "Cleanup cpumask.h inclusion in core headers"
reworks the cpumask and nodemask headers to make things generally
more rational.
- Kuan-Wei Chiu has sent along some maintenance work against our
sorting library code in the series "lib/sort: Optimizations and
cleanups".
- More library maintainance work from Christophe Jaillet in the series
"Remove usage of the deprecated ida_simple_xx() API".
- Ryusuke Konishi continues with the nilfs2 fixes and clanups in the
series "nilfs2: eliminate the call to inode_attach_wb()".
- Kuan-Ying Lee has some fixes to the gdb scripts in the series "Fix
GDB command error".
- Plus the usual shower of singleton patches all over the place. Please
see the relevant changelogs for details.
* tag 'mm-nonmm-stable-2024-07-21-15-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (98 commits)
ia64: scrub ia64 from poison.h
watchdog/perf: properly initialize the turbo mode timestamp and rearm counter
tsacct: replace strncpy() with strscpy()
lib/bch.c: use swap() to improve code
test_bpf: convert comma to semicolon
init/modpost: conditionally check section mismatch to __meminit*
init: remove unused __MEMINIT* macros
nilfs2: Constify struct kobj_type
nilfs2: avoid undefined behavior in nilfs_cnt32_ge macro
math: rational: add missing MODULE_DESCRIPTION() macro
lib/zlib: add missing MODULE_DESCRIPTION() macro
fs: ufs: add MODULE_DESCRIPTION()
lib/rbtree.c: fix the example typo
ocfs2: add bounds checking to ocfs2_check_dir_entry()
fs: add kernel-doc comments to ocfs2_prepare_orphan_dir()
coredump: simplify zap_process()
selftests/fpu: add missing MODULE_DESCRIPTION() macro
compiler.h: simplify data_race() macro
build-id: require program headers to be right after ELF header
resource: add missing MODULE_DESCRIPTION()
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- In the series "mm: Avoid possible overflows in dirty throttling" Jan
Kara addresses a couple of issues in the writeback throttling code.
These fixes are also targetted at -stable kernels.
- Ryusuke Konishi's series "nilfs2: fix potential issues related to
reserved inodes" does that. This should actually be in the
mm-nonmm-stable tree, along with the many other nilfs2 patches. My
bad.
- More folio conversions from Kefeng Wang in the series "mm: convert to
folio_alloc_mpol()"
- Kemeng Shi has sent some cleanups to the writeback code in the series
"Add helper functions to remove repeated code and improve readability
of cgroup writeback"
- Kairui Song has made the swap code a little smaller and a little
faster in the series "mm/swap: clean up and optimize swap cache
index".
- In the series "mm/memory: cleanly support zeropage in
vm_insert_page*(), vm_map_pages*() and vmf_insert_mixed()" David
Hildenbrand has reworked the rather sketchy handling of the use of
the zeropage in MAP_SHARED mappings. I don't see any runtime effects
here - more a cleanup/understandability/maintainablity thing.
- Dev Jain has improved selftests/mm/va_high_addr_switch.c's handling
of higher addresses, for aarch64. The (poorly named) series is
"Restructure va_high_addr_switch".
- The core TLB handling code gets some cleanups and possible slight
optimizations in Bang Li's series "Add update_mmu_tlb_range() to
simplify code".
- Jane Chu has improved the handling of our
fake-an-unrecoverable-memory-error testing feature MADV_HWPOISON in
the series "Enhance soft hwpoison handling and injection".
- Jeff Johnson has sent a billion patches everywhere to add
MODULE_DESCRIPTION() to everything. Some landed in this pull.
- In the series "mm: cleanup MIGRATE_SYNC_NO_COPY mode", Kefeng Wang
has simplified migration's use of hardware-offload memory copying.
- Yosry Ahmed performs more folio API conversions in his series "mm:
zswap: trivial folio conversions".
- In the series "large folios swap-in: handle refault cases first",
Chuanhua Han inches us forward in the handling of large pages in the
swap code. This is a cleanup and optimization, working toward the end
objective of full support of large folio swapin/out.
- In the series "mm,swap: cleanup VMA based swap readahead window
calculation", Huang Ying has contributed some cleanups and a possible
fixlet to his VMA based swap readahead code.
- In the series "add mTHP support for anonymous shmem" Baolin Wang has
taught anonymous shmem mappings to use multisize THP. By default this
is a no-op - users must opt in vis sysfs controls. Dramatic
improvements in pagefault latency are realized.
- David Hildenbrand has some cleanups to our remaining use of
page_mapcount() in the series "fs/proc: move page_mapcount() to
fs/proc/internal.h".
- David also has some highmem accounting cleanups in the series
"mm/highmem: don't track highmem pages manually".
- Build-time fixes and cleanups from John Hubbard in the series
"cleanups, fixes, and progress towards avoiding "make headers"".
- Cleanups and consolidation of the core pagemap handling from Barry
Song in the series "mm: introduce pmd|pte_needs_soft_dirty_wp helpers
and utilize them".
- Lance Yang's series "Reclaim lazyfree THP without splitting" has
reduced the latency of the reclaim of pmd-mapped THPs under fairly
common circumstances. A 10x speedup is seen in a microbenchmark.
It does this by punting to aother CPU but I guess that's a win unless
all CPUs are pegged.
- hugetlb_cgroup cleanups from Xiu Jianfeng in the series
"mm/hugetlb_cgroup: rework on cftypes".
- Miaohe Lin's series "Some cleanups for memory-failure" does just that
thing.
- Someone other than SeongJae has developed a DAMON feature in Honggyu
Kim's series "DAMON based tiered memory management for CXL memory".
This adds DAMON features which may be used to help determine the
efficiency of our placement of CXL/PCIe attached DRAM.
- DAMON user API centralization and simplificatio work in SeongJae
Park's series "mm/damon: introduce DAMON parameters online commit
function".
- In the series "mm: page_type, zsmalloc and page_mapcount_reset()"
David Hildenbrand does some maintenance work on zsmalloc - partially
modernizing its use of pageframe fields.
- Kefeng Wang provides more folio conversions in the series "mm: remove
page_maybe_dma_pinned() and page_mkclean()".
- More cleanup from David Hildenbrand, this time in the series
"mm/memory_hotplug: use PageOffline() instead of PageReserved() for
!ZONE_DEVICE". It "enlightens memory hotplug more about PageOffline()
pages" and permits the removal of some virtio-mem hacks.
- Barry Song's series "mm: clarify folio_add_new_anon_rmap() and
__folio_add_anon_rmap()" is a cleanup to the anon folio handling in
preparation for mTHP (multisize THP) swapin.
- Kefeng Wang's series "mm: improve clear and copy user folio"
implements more folio conversions, this time in the area of large
folio userspace copying.
- The series "Docs/mm/damon/maintaier-profile: document a mailing tool
and community meetup series" tells people how to get better involved
with other DAMON developers. From SeongJae Park.
- A large series ("kmsan: Enable on s390") from Ilya Leoshkevich does
that.
- David Hildenbrand sends along more cleanups, this time against the
migration code. The series is "mm/migrate: move NUMA hinting fault
folio isolation + checks under PTL".
- Jan Kara has found quite a lot of strangenesses and minor errors in
the readahead code. He addresses this in the series "mm: Fix various
readahead quirks".
- SeongJae Park's series "selftests/damon: test DAMOS tried regions and
{min,max}_nr_regions" adds features and addresses errors in DAMON's
self testing code.
- Gavin Shan has found a userspace-triggerable WARN in the pagecache
code. The series "mm/filemap: Limit page cache size to that supported
by xarray" addresses this. The series is marked cc:stable.
- Chengming Zhou's series "mm/ksm: cmp_and_merge_page() optimizations
and cleanup" cleans up and slightly optimizes KSM.
- Roman Gushchin has separated the memcg-v1 and memcg-v2 code - lots of
code motion. The series (which also makes the memcg-v1 code
Kconfigurable) are "mm: memcg: separate legacy cgroup v1 code and put
under config option" and "mm: memcg: put cgroup v1-specific memcg
data under CONFIG_MEMCG_V1"
- Dan Schatzberg's series "Add swappiness argument to memory.reclaim"
adds an additional feature to this cgroup-v2 control file.
- The series "Userspace controls soft-offline pages" from Jiaqi Yan
permits userspace to stop the kernel's automatic treatment of
excessive correctable memory errors. In order to permit userspace to
monitor and handle this situation.
- Kefeng Wang's series "mm: migrate: support poison recover from
migrate folio" teaches the kernel to appropriately handle migration
from poisoned source folios rather than simply panicing.
- SeongJae Park's series "Docs/damon: minor fixups and improvements"
does those things.
- In the series "mm/zsmalloc: change back to per-size_class lock"
Chengming Zhou improves zsmalloc's scalability and memory
utilization.
- Vivek Kasireddy's series "mm/gup: Introduce memfd_pin_folios() for
pinning memfd folios" makes the GUP code use FOLL_PIN rather than
bare refcount increments. So these paes can first be moved aside if
they reside in the movable zone or a CMA block.
- Andrii Nakryiko has added a binary ioctl()-based API to
/proc/pid/maps for much faster reading of vma information. The series
is "query VMAs from /proc/<pid>/maps".
- In the series "mm: introduce per-order mTHP split counters" Lance
Yang improves the kernel's presentation of developer information
related to multisize THP splitting.
- Michael Ellerman has developed the series "Reimplement huge pages
without hugepd on powerpc (8xx, e500, book3s/64)". This permits
userspace to use all available huge page sizes.
- In the series "revert unconditional slab and page allocator fault
injection calls" Vlastimil Babka removes a performance-affecting and
not very useful feature from slab fault injection.
* tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (411 commits)
mm/mglru: fix ineffective protection calculation
mm/zswap: fix a white space issue
mm/hugetlb: fix kernel NULL pointer dereference when migrating hugetlb folio
mm/hugetlb: fix possible recursive locking detected warning
mm/gup: clear the LRU flag of a page before adding to LRU batch
mm/numa_balancing: teach mpol_to_str about the balancing mode
mm: memcg1: convert charge move flags to unsigned long long
alloc_tag: fix page_ext_get/page_ext_put sequence during page splitting
lib: reuse page_ext_data() to obtain codetag_ref
lib: add missing newline character in the warning message
mm/mglru: fix overshooting shrinker memory
mm/mglru: fix div-by-zero in vmpressure_calc_level()
mm/kmemleak: replace strncpy() with strscpy()
mm, page_alloc: put should_fail_alloc_page() back behing CONFIG_FAIL_PAGE_ALLOC
mm, slab: put should_failslab() back behind CONFIG_SHOULD_FAILSLAB
mm: ignore data-race in __swap_writepage
hugetlbfs: ensure generic_hugetlb_get_unmapped_area() returns higher address than mmap_min_addr
mm: shmem: rename mTHP shmem counters
mm: swap_state: use folio_alloc_mpol() in __read_swap_cache_async()
mm/migrate: putback split folios when numa hint migration fails
...
|
|
Pull kvm updates from Paolo Bonzini:
"ARM:
- Initial infrastructure for shadow stage-2 MMUs, as part of nested
virtualization enablement
- Support for userspace changes to the guest CTR_EL0 value, enabling
(in part) migration of VMs between heterogenous hardware
- Fixes + improvements to pKVM's FF-A proxy, adding support for v1.1
of the protocol
- FPSIMD/SVE support for nested, including merged trap configuration
and exception routing
- New command-line parameter to control the WFx trap behavior under
KVM
- Introduce kCFI hardening in the EL2 hypervisor
- Fixes + cleanups for handling presence/absence of FEAT_TCRX
- Miscellaneous fixes + documentation updates
LoongArch:
- Add paravirt steal time support
- Add support for KVM_DIRTY_LOG_INITIALLY_SET
- Add perf kvm-stat support for loongarch
RISC-V:
- Redirect AMO load/store access fault traps to guest
- perf kvm stat support
- Use guest files for IMSIC virtualization, when available
s390:
- Assortment of tiny fixes which are not time critical
x86:
- Fixes for Xen emulation
- Add a global struct to consolidate tracking of host values, e.g.
EFER
- Add KVM_CAP_X86_APIC_BUS_CYCLES_NS to allow configuring the
effective APIC bus frequency, because TDX
- Print the name of the APICv/AVIC inhibits in the relevant
tracepoint
- Clean up KVM's handling of vendor specific emulation to
consistently act on "compatible with Intel/AMD", versus checking
for a specific vendor
- Drop MTRR virtualization, and instead always honor guest PAT on
CPUs that support self-snoop
- Update to the newfangled Intel CPU FMS infrastructure
- Don't advertise IA32_PERF_GLOBAL_OVF_CTRL as an MSR-to-be-saved, as
it reads '0' and writes from userspace are ignored
- Misc cleanups
x86 - MMU:
- Small cleanups, renames and refactoring extracted from the upcoming
Intel TDX support
- Don't allocate kvm_mmu_page.shadowed_translation for shadow pages
that can't hold leafs SPTEs
- Unconditionally drop mmu_lock when allocating TDP MMU page tables
for eager page splitting, to avoid stalling vCPUs when splitting
huge pages
- Bug the VM instead of simply warning if KVM tries to split a SPTE
that is non-present or not-huge. KVM is guaranteed to end up in a
broken state because the callers fully expect a valid SPTE, it's
all but dangerous to let more MMU changes happen afterwards
x86 - AMD:
- Make per-CPU save_area allocations NUMA-aware
- Force sev_es_host_save_area() to be inlined to avoid calling into
an instrumentable function from noinstr code
- Base support for running SEV-SNP guests. API-wise, this includes a
new KVM_X86_SNP_VM type, encrypting/measure the initial image into
guest memory, and finalizing it before launching it. Internally,
there are some gmem/mmu hooks needed to prepare gmem-allocated
pages before mapping them into guest private memory ranges
This includes basic support for attestation guest requests, enough
to say that KVM supports the GHCB 2.0 specification
There is no support yet for loading into the firmware those signing
keys to be used for attestation requests, and therefore no need yet
for the host to provide certificate data for those keys.
To support fetching certificate data from userspace, a new KVM exit
type will be needed to handle fetching the certificate from
userspace.
An attempt to define a new KVM_EXIT_COCO / KVM_EXIT_COCO_REQ_CERTS
exit type to handle this was introduced in v1 of this patchset, but
is still being discussed by community, so for now this patchset
only implements a stub version of SNP Extended Guest Requests that
does not provide certificate data
x86 - Intel:
- Remove an unnecessary EPT TLB flush when enabling hardware
- Fix a series of bugs that cause KVM to fail to detect nested
pending posted interrupts as valid wake eents for a vCPU executing
HLT in L2 (with HLT-exiting disable by L1)
- KVM: x86: Suppress MMIO that is triggered during task switch
emulation
Explicitly suppress userspace emulated MMIO exits that are
triggered when emulating a task switch as KVM doesn't support
userspace MMIO during complex (multi-step) emulation
Silently ignoring the exit request can result in the
WARN_ON_ONCE(vcpu->mmio_needed) firing if KVM exits to userspace
for some other reason prior to purging mmio_needed
See commit 0dc902267cb3 ("KVM: x86: Suppress pending MMIO write
exits if emulator detects exception") for more details on KVM's
limitations with respect to emulated MMIO during complex emulator
flows
Generic:
- Rename the AS_UNMOVABLE flag that was introduced for KVM to
AS_INACCESSIBLE, because the special casing needed by these pages
is not due to just unmovability (and in fact they are only
unmovable because the CPU cannot access them)
- New ioctl to populate the KVM page tables in advance, which is
useful to mitigate KVM page faults during guest boot or after live
migration. The code will also be used by TDX, but (probably) not
through the ioctl
- Enable halt poll shrinking by default, as Intel found it to be a
clear win
- Setup empty IRQ routing when creating a VM to avoid having to
synchronize SRCU when creating a split IRQCHIP on x86
- Rework the sched_in/out() paths to replace kvm_arch_sched_in() with
a flag that arch code can use for hooking both sched_in() and
sched_out()
- Take the vCPU @id as an "unsigned long" instead of "u32" to avoid
truncating a bogus value from userspace, e.g. to help userspace
detect bugs
- Mark a vCPU as preempted if and only if it's scheduled out while in
the KVM_RUN loop, e.g. to avoid marking it preempted and thus
writing guest memory when retrieving guest state during live
migration blackout
Selftests:
- Remove dead code in the memslot modification stress test
- Treat "branch instructions retired" as supported on all AMD Family
17h+ CPUs
- Print the guest pseudo-RNG seed only when it changes, to avoid
spamming the log for tests that create lots of VMs
- Make the PMU counters test less flaky when counting LLC cache
misses by doing CLFLUSH{OPT} in every loop iteration"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits)
crypto: ccp: Add the SNP_VLEK_LOAD command
KVM: x86/pmu: Add kvm_pmu_call() to simplify static calls of kvm_pmu_ops
KVM: x86: Introduce kvm_x86_call() to simplify static calls of kvm_x86_ops
KVM: x86: Replace static_call_cond() with static_call()
KVM: SEV: Provide support for SNP_EXTENDED_GUEST_REQUEST NAE event
x86/sev: Move sev_guest.h into common SEV header
KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event
KVM: x86: Suppress MMIO that is triggered during task switch emulation
KVM: x86/mmu: Clean up make_huge_page_split_spte() definition and intro
KVM: x86/mmu: Bug the VM if KVM tries to split a !hugepage SPTE
KVM: selftests: x86: Add test for KVM_PRE_FAULT_MEMORY
KVM: x86: Implement kvm_arch_vcpu_pre_fault_memory()
KVM: x86/mmu: Make kvm_mmu_do_page_fault() return mapped level
KVM: x86/mmu: Account pf_{fixed,emulate,spurious} in callers of "do page fault"
KVM: x86/mmu: Bump pf_taken stat only in the "real" page fault handler
KVM: Add KVM_PRE_FAULT_MEMORY vcpu ioctl to pre-populate guest memory
KVM: Document KVM_PRE_FAULT_MEMORY ioctl
mm, virt: merge AS_UNMOVABLE and AS_INACCESSIBLE
perf kvm: Add kvm-stat for loongarch64
LoongArch: KVM: Add PV steal time support in guest side
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Miquel Raynal:
"Nothing stands out for this merge window, mostly minor fixes, such as
module descriptions, the use of debug macros and Makefile
improvements.
Raw NAND changes;
- The Freescale MXC driver has been converted to the newer
'->exec_op()' interface
- The meson driver now supports handling the boot ROM area with very
specific ECC needs
- Support for the iMX8QXP has been added to the GPMI driver
- The lpx32xx driver now can get the DMA channels using DT entries
- The Qcom binding has been improved to be more future proof by Rob
- And then there is the usual load of misc and minor changes
SPI-NAND changes:
- The Macronix vendor driver has been improved to support an extended
ID to avoid conflicting with older devices after an ID reuse issue
SPI NOR changes:
- Drop support for Xilinx S3AN flashes. These flashes are for the
very old Xilinx Spartan 3 FPGAs and they need some awkward code in
the core to support.
Drop support for these flashes, along with the special handling we
needed for them in the core like non-power-of-2 page size handling
and the .setup() callback.
- Fix regression for old w25q128 flashes without SFDP tables.
Commit 83e824a4a595 ("mtd: spi-nor: Correct flags for Winbond
w25q128") dropped support for such devices under the assumption
that they aren't being used anymore. Users have now surfaced [0] so
fix the regression by supporting both kind of devices.
- Core cleanups including removal of SPI_NOR_NO_FR flag and
simplification of spi_nor_get_flash_info()"
Link: https://lore.kernel.org/r/CALxbwRo_-9CaJmt7r7ELgu+vOcgk=xZcGHobnKf=oT2=u4d4aA@mail.gmail.com/ [0]
* tag 'mtd/for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (28 commits)
mtd: rawnand: lpx32xx: Fix dma_request_chan() error checks
mtd: spinand: macronix: Add support for serial NAND flash
mtd: spinand: macronix: Add support for reading Device ID 2
mtd: rawnand: lpx32xx: Request DMA channels using DT entries
dt-bindings: mtd: qcom,nandc: Define properties at top-level
mtd: rawnand: intel: use 'time_left' variable with wait_for_completion_timeout()
mtd: rawnand: mxc: use 'time_left' variable with wait_for_completion_timeout()
mtd: rawnand: gpmi: add iMX8QXP support.
mtd: rawnand: gpmi: add 'support_edo_timing' in gpmi_devdata
mtd: cmdlinepart: Replace `dbg()` macro with `pr_debug()`
mtd: add missing MODULE_DESCRIPTION() macros
mtd: make mtd_test.c a separate module
dt-bindings: mtd: gpmi-nand: Add 'fsl,imx8qxp-gpmi-nand' compatible string
mtd: rawnand: cadence: remove unused struct 'ecc_info'
mtd: rawnand: mxc: support software ECC
mtd: rawnand: mxc: implement exec_op
mtd: rawnand: mxc: separate page read from ecc calc
mtd: spi-nor: winbond: fix w25q128 regression
mtd: spi-nor: simplify spi_nor_get_flash_info()
mtd: spi-nor: get rid of SPI_NOR_NO_FR
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull landlock updates from Mickaël Salaün:
"This simplifies code and improves documentation"
* tag 'landlock-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
landlock: Various documentation improvements
landlock: Clarify documentation for struct landlock_ruleset_attr
landlock: Use bit-fields for storing handled layer access masks
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Takashi Sakamoto:
"There are many lines of changes for FireWire subsystem, but there is
practically no functional change.
Most of the changes are for code refactoring, some KUnit tests to
added helper functions, and new tracepoints events for both the core
functions and 1394 OHCI driver.
The tracepoints events now cover the verbose logging enabled by debug
parameter of firewire-ohci kernel module. The parameter would be
removed in any future timing, thus it is now deprecated"
* tag 'firewire-updates-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: (32 commits)
firewire: core: move copy_port_status() helper function to TP_fast_assign() block
Revert "firewire: ohci: use common macro to interpret be32 data in le32 buffer"
firewire: ohci: add tracepoints event for data of Self-ID DMA
firewire: ohci: use inline functions to operate data of self-ID DMA
firewire: ohci: add static inline functions to deserialize for Self-ID DMA operation
firewire: ohci: use static function to handle endian issue on PowerPC platform
firewire: ohci: use common macro to interpret be32 data in le32 buffer
firewire: core: Fix spelling mistakes in tracepoint messages
firewire: ohci: add tracepoints event for hardIRQ event
firewire: ohci: add support for Linux kernel tracepoints
firewire: core: add tracepoints events for completions of packets in isochronous context
firewire: core: add tracepoints events for queueing packets of isochronous context
firewire: core: add tracepoints events for flushing completions of isochronous context
firewire: core: add tracepoints events for flushing of isochronous context
firewire: core: add tracepoints events for starting/stopping of isochronous context
firewire: core: add tracepoints events for setting channels of multichannel context
firewire: core: add tracepoints events for allocation/deallocation of isochronous context
firewire: core: undefine macros after use in tracepoints events
firewire: core: record card index in tracepoints event for self ID sequence
firewire: core: use inline helper functions to serialize phy config packet
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
- Support for various new ISA extensions:
* The Zve32[xf] and Zve64[xfd] sub-extensios of the vector
extension
* Zimop and Zcmop for may-be-operations
* The Zca, Zcf, Zcd and Zcb sub-extensions of the C extension
* Zawrs
- riscv,cpu-intc is now dtschema
- A handful of performance improvements and cleanups to text patching
- Support for memory hot{,un}plug
- The highest user-allocatable virtual address is now visible in
hwprobe
* tag 'riscv-for-linus-6.11-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (58 commits)
riscv: lib: relax assembly constraints in hweight
riscv: set trap vector earlier
KVM: riscv: selftests: Add Zawrs extension to get-reg-list test
KVM: riscv: Support guest wrs.nto
riscv: hwprobe: export Zawrs ISA extension
riscv: Add Zawrs support for spinlocks
dt-bindings: riscv: Add Zawrs ISA extension description
riscv: Provide a definition for 'pause'
riscv: hwprobe: export highest virtual userspace address
riscv: Improve sbi_ecall() code generation by reordering arguments
riscv: Add tracepoints for SBI calls and returns
riscv: Optimize crc32 with Zbc extension
riscv: Enable DAX VMEMMAP optimization
riscv: mm: Add support for ZONE_DEVICE
virtio-mem: Enable virtio-mem for RISC-V
riscv: Enable memory hotplugging for RISC-V
riscv: mm: Take memory hotplug read-lock during kernel page table dump
riscv: mm: Add memory hotplugging support
riscv: mm: Add pfn_to_kaddr() implementation
riscv: mm: Refactor create_linear_mapping_range() for memory hot add
...
|
|
Reword the explanation of @xfer, the old one was confusing and mixing up
terminology. Other than that, capitalize some words correctly and use
full line length.
Signed-off-by: Wolfram Sang <[email protected]>
|
|
The forward declaration is not needed anymore. The sentence about
"following structs" became obsolete when struct i2c_algorithm became a
kdoc. The paragraph about return values can go because we have this
information in kdoc already.
Signed-off-by: Wolfram Sang <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Define PCIE_RESET_CONFIG_DEVICE_WAIT_MS for the generic 100ms
required after reset before config access (Kevin Xie)
- Define PCIE_T_RRS_READY_MS for the generic 100ms required after
reset before config access (probably should be unified with
PCIE_RESET_CONFIG_DEVICE_WAIT_MS) (Damien Le Moal)
Resource management:
- Rename find_resource() to find_resource_space() to be more
descriptive (Ilpo Järvinen)
- Export find_resource_space() for use by PCI core, which needs to
learn whether there is available space for a bridge window (Ilpo
Järvinen)
- Prevent double counting of resources so window size doesn't grow on
each remove/rescan cycle (Ilpo Järvinen)
- Relax bridge window sizing algorithm so a device doesn't break
simply because it was removed and rescanned (Ilpo Järvinen)
- Evaluate the ACPI PRESERVE_BOOT_CONFIG _DSM in
pci_register_host_bridge() (not acpi_pci_root_create()) so we can
unify it with similar DT functionality (Vidya Sagar)
- Extend use of DT "linux,pci-probe-only" property so it works
per-host bridge as well as globally (Vidya Sagar)
- Unify support for ACPI PRESERVE_BOOT_CONFIG _DSM and the DT
"linux,pci-probe-only" property in pci_preserve_config() (Vidya
Sagar)
Driver binding:
- Add devres infrastructure for managed request and map of partial
BAR resources (Philipp Stanner)
- Deprecate pcim_iomap_table() because uses like
"pcim_iomap_table()[0]" have no good way to return errors (Philipp
Stanner)
- Add an always-managed pcim_request_region() for use instead of
pci_request_region() and similar, which are sometimes managed
depending on whether pcim_enable_device() has been called
previously (Philipp Stanner)
- Reimplement pcim_set_mwi() so it doesn't need to keep store MWI
state (Philipp Stanner)
- Add pcim_intx() for use instead of pci_intx(), which is sometimes
managed depending on whether pcim_enable_device() has been called
previously (Philipp Stanner)
- Add managed pcim_iomap_range() to allow mapping of a partial BAR
(Philipp Stanner)
- Fix a devres mapping leak in drm/vboxvideo (Philipp Stanner)
Error handling:
- Add missing bridge locking in device reset path and add a warning
for other possible lock issues (Dan Williams)
- Fix use-after-free on concurrent DPC and hot-removal (Lukas Wunner)
Power management:
- Disable AER and DPC during suspend to avoid spurious wakeups if
they share an interrupt with PME (Kai-Heng Feng)
PCIe native device hotplug:
- Detect if a device was removed or replaced during system sleep so
we don't assume a new device is the one that used to be there
(Lukas Wunner)
Virtualization:
- Add an ACS quirk for Broadcom BCM5760X multi-function NIC; it
prevents transactions between functions even though it doesn't
advertise ACS, so the functions can be attached individually via
VFIO (Ajit Khaparde)
Peer-to-peer DMA:
- Add a "pci=config_acs=" kernel command-line parameter to relax
default ACS settings to enable additional peer-to-peer
configurations. Requires expert knowledge of topology and ACS
operation (Vidya Sagar)
Endpoint framework:
- Remove unused struct pci_epf_group.type_group (Christophe JAILLET)
- Fix error handling in vpci_scan_bus() and epf_ntb_epc_cleanup()
(Dan Carpenter)
- Make struct pci_epc_class constant (Greg Kroah-Hartman)
- Remove unused pci_endpoint_test_bar_{readl,writel} functions
(Jiapeng Chong)
- Rename "BME" to "Bus Master Enable" (Manivannan Sadhasivam)
- Rename struct pci_epc_event_ops.core_init() callback to epc_init()
(Manivannan Sadhasivam)
- Move DMA init to MHI .epc_init() callback for uniformity
(Manivannan Sadhasivam)
- Cancel EPF test delayed work when link goes down (Manivannan
Sadhasivam)
- Add struct pci_epc_event_ops.epc_deinit() callback for cleanup
needed on fundamental reset (Manivannan Sadhasivam)
- Add 64KB alignment to endpoint test to support Rockchip rk3588
(Niklas Cassel)
- Optimize endpoint test by using memcpy() instead of readl() (Niklas
Cassel)
Device tree bindings:
- Add generic "ats-supported" property to advertise that a PCIe Root
Complex supports ATS (Jean-Philippe Brucker)
Amazon Annapurna Labs PCIe controller driver:
- Validate IORESOURCE_BUS presence to avoid NULL pointer dereference
(Aleksandr Mishin)
Axis ARTPEC-6 PCIe controller driver:
- Rename .cpu_addr_fixup() parameter to reflect that it is a PCI
address, not a CPU address (Niklas Cassel)
Freescale i.MX6 PCIe controller driver:
- Convert to agnostic GPIO API (Andy Shevchenko)
Freescale Layerscape PCIe controller driver:
- Make struct mobiveil_rp_ops constant (Christophe JAILLET)
- Use new generic dw_pcie_ep_linkdown() to handle link-down events
(Manivannan Sadhasivam)
HiSilicon Kirin PCIe controller driver:
- Convert to agnostic GPIO API (Andy Shevchenko)
- Use _scoped() iterator for OF children to ensure refcounts are
decremented at loop exit (Javier Carrasco)
Intel VMD host bridge driver:
- Create sysfs "domain" symlink before downstream devices are exposed
to userspace by pci_bus_add_devices() (Jiwei Sun)
Loongson PCIe controller driver:
- Enable MSI when LS7A is used with new CPUs that have integrated
PCIe Root Complex, e.g., Loongson-3C6000, so downstream devices can
use MSI (Huacai Chen)
Microchip AXI PolarFlare PCIe controller driver:
- Move pcie-microchip-host.c to a new PLDA directory (Minda Chen)
- Factor PLDA generic items out to a common
plda,xpressrich3-axi-common.yaml binding (Minda Chen)
- Factor PLDA generic data structures and code out to shared
pcie-plda.h, pcie-plda-host.c (Minda Chen)
- Add PLDA generic interrupt handling with a .request_event_irq()
callback for vendor-specific events (Minda Chen)
- Add PLDA generic host init/deinit and map bus functions for use by
vendor-specific drivers (Minda Chen)
- Rework to use PLDA core (Minda Chen)
Microsoft Hyper-V host bridge driver:
- Return zero, not garbage, when reading PCI_INTERRUPT_PIN (Wei Liu)
NVIDIA Tegra194 PCIe controller driver:
- Remove unused struct tegra_pcie_soc (Dr. David Alan Gilbert)
- Set 64KB inbound ATU alignment restriction (Jon Hunter)
Qualcomm PCIe controller driver:
- Make the MHI reg region mandatory for X1E80100, since all PCIe
controllers have it (Abel Vesa)
- Prevent use of uninitialized data and possible error pointer
dereference (Dan Carpenter)
- Return error, not success, if dev_pm_opp_find_freq_floor() fails
(Dan Carpenter)
- Add Operating Performance Points (OPP) support to scale performance
state based on aggregate link bandwidth to improve SoC power
efficiency (Krishna chaitanya chundru)
- Vote for the CPU-PCIe ICC (interconnect) path to ensure it stays
active even if other drivers don't vote for it (Krishna chaitanya
chundru)
- Use devm_clk_bulk_get_all() to get all the clocks from DT to avoid
writing out all the clock names (Manivannan Sadhasivam)
- Add DT binding and driver support for the SA8775P SoC (Mrinmay
Sarkar)
- Add HDMA support for the SA8775P SoC (Mrinmay Sarkar)
- Override the SA8775P NO_SNOOP default to avoid possible memory
corruption (Mrinmay Sarkar)
- Make sure resources are disabled during PERST# assertion, even if
the link is already disabled (Manivannan Sadhasivam)
- Use new generic dw_pcie_ep_linkdown() to handle link-down events
(Manivannan Sadhasivam)
- Add DT and endpoint driver support for the SA8775P SoC (Mrinmay
Sarkar)
- Add Hyper DMA (HDMA) support for the SA8775P SoC and enable it in
the EPF MHI driver (Mrinmay Sarkar)
- Set PCIE_PARF_NO_SNOOP_OVERIDE to override the default NO_SNOOP
attribute on the SA8775P SoC (both Root Complex and Endpoint mode)
to avoid possible memory corruption (Mrinmay Sarkar)
Renesas R-Car PCIe controller driver:
- Demote WARN() to dev_warn_ratelimited() in rcar_pcie_wakeup() to
avoid unnecessary backtrace (Marek Vasut)
- Add DT and driver support for R-Car V4H (R8A779G0) host and
endpoint. This requires separate proprietary firmware (Yoshihiro
Shimoda)
Rockchip PCIe controller driver:
- Assert PERST# for 100ms after power is stable (Damien Le Moal)
- Wait PCIE_T_RRS_READY_MS (100ms) after reset before starting
configuration (Damien Le Moal)
- Use GPIOD_OUT_LOW flag while requesting ep_gpio to fix a firmware
crash on Qcom-based modems with Rockpro64 board (Manivannan
Sadhasivam)
Rockchip DesignWare PCIe controller driver:
- Factor common parts of rockchip-dw-pcie DT binding to be shared by
Root Complex and Endpoint mode (Niklas Cassel)
- Add missing INTx signals to common DT binding (Niklas Cassel)
- Add eDMA items to DT binding for Endpoint controller (Niklas
Cassel)
- Fix initial dw-rockchip PERST# GPIO value to prevent unnecessary
short assert/deassert that causes issues with some WLAN controllers
(Niklas Cassel)
- Refactor dw-rockchip and add support for Endpoint mode (Niklas
Cassel)
- Call pci_epc_init_notify() and drop dw_pcie_ep_init_notify()
wrapper (Niklas Cassel)
- Add error messages in .probe() error paths to improve user
experience (Uwe Kleine-König)
Samsung Exynos PCIe controller driver:
- Use bulk clock APIs to simplify clock setup (Shradha Todi)
StarFive PCIe controller driver:
- Add DT binding and driver support for the StarFive JH7110
PLDA-based PCIe controller (Minda Chen)
Synopsys DesignWare PCIe controller driver:
- Add generic support for sending PME_Turn_Off when system suspends
(Frank Li)
- Fix incorrect interpretation of iATU slot 0 after PERST#
assert/deassert (Frank Li)
- Use msleep() instead of usleep_range() while waiting for link
(Konrad Dybcio)
- Refactor dw_pcie_edma_find_chip() to enable adding support for
Hyper DMA (HDMA) (Manivannan Sadhasivam)
- Enable drivers to supply the eDMA channel count since some can't
auto detect this (Manivannan Sadhasivam)
- Call pci_epc_init_notify() and drop dw_pcie_ep_init_notify()
wrapper (Manivannan Sadhasivam)
- Pass the eDMA mapping format directly from drivers instead of
maintaining a capability for it (Manivannan Sadhasivam)
- Add generic dw_pcie_ep_linkdown() to notify EPF drivers about
link-down events and restore non-sticky DWC registers lost on link
down (Manivannan Sadhasivam)
- Add vendor-specific "apb" reg name, interrupt names, INTx names to
generic binding (Niklas Cassel)
- Enforce DWC restriction that 64-bit BARs must start with an
even-numbered BAR (Niklas Cassel)
- Consolidate args of dw_pcie_prog_outbound_atu() into a structure
(Yoshihiro Shimoda)
- Add support for endpoints to send Message TLPs, e.g., for INTx
emulation (Yoshihiro Shimoda)
TI DRA7xx PCIe controller driver:
- Rename .cpu_addr_fixup() parameter to reflect that it is a PCI
address, not a CPU address (Niklas Cassel)
TI Keystone PCIe controller driver:
- Validate IORESOURCE_BUS presence to avoid NULL pointer dereference
(Aleksandr Mishin)
- Work around AM65x/DRA80xM Errata #i2037 that corrupts TLPs and
causes processor hangs by limiting Max_Read_Request_Size (MRRS) and
Max_Payload_Size (MPS) (Kishon Vijay Abraham I)
- Leave BAR 0 disabled for AM654x to fix a regression caused by
6ab15b5e7057 ("PCI: dwc: keystone: Convert .scan_bus() callback to
use add_bus"), which caused a 45-second boot delay (Siddharth
Vadapalli)
Xilinx Versal CPM PCIe controller driver:
- Fix overlapping bridge registers and 32-bit BAR addresses in DT
binding (Thippeswamy Havalige)
MicroSemi Switchtec management driver:
- Make struct switchtec_class constant (Greg Kroah-Hartman)
Miscellaneous:
- Remove unused struct acpi_handle_node (Dr. David Alan Gilbert)
- Add missing MODULE_DESCRIPTION() macros (Jeff Johnson)"
* tag 'pci-v6.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (154 commits)
PCI: loongson: Enable MSI in LS7A Root Complex
PCI: Extend ACS configurability
PCI: Add missing bridge lock to pci_bus_lock()
drm/vboxvideo: fix mapping leaks
PCI: Add managed pcim_iomap_range()
PCI: Remove legacy pcim_release()
PCI: Add managed pcim_intx()
PCI: vmd: Create domain symlink before pci_bus_add_devices()
PCI: qcom: Prevent use of uninitialized data in qcom_pcie_suspend_noirq()
PCI: qcom: Prevent potential error pointer dereference
PCI: qcom: Fix missing error code in qcom_pcie_probe()
PCI: Give pcim_set_mwi() its own devres cleanup callback
PCI: Move struct pci_devres.pinned bit to struct pci_dev
PCI: Remove struct pci_devres.enabled status bit
PCI: Document hybrid devres hazards
PCI: Add managed pcim_request_region()
PCI: Deprecate pcim_iomap_table(), pcim_iomap_regions_request_all()
PCI: Add managed partial-BAR request and map infrastructure
PCI: Add devres helpers for iomap table
PCI: Add and use devres helper for bit masks
...
|
|
Some hardware need some time to switch from a bus to another. This can
cause the first transfers following the selection of a bus to fail.
There is no way to configure this kind of waiting time in the driver.
Add support for the 'settle-time-us' device-tree property. When set,
the i2c_mux_gpio_select() applies a delay before returning, leaving
enough time to the hardware to switch to the new bus.
Signed-off-by: Bastien Curutchet <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Acked-by: Peter Rosin <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- streamlined logic in input core for handling normal input handlers vs
input filters
- updates to input drivers to allocate memory with sizeof(*pointer)
instead of sizeof(type)
- change to ads7846 touchscreen driver to use hsync GPIO instead of
requiring platform data with special method (which is not compatible
with boards using device tree)
- update to adc-joystick driver to handle inverted axes
- cleanups in various drivers switching them to use the new "guard" and
"__free()" facilities
- changes to several drivers (adxl34x, atmel_mxt_ts, ati-remote2,
omap-keypad, yealink) to stop creating driver-specific device
attributes manually and use driver core facilities for this
- update to Cypress PS/2 protocol driver to properly handle errors from
the PS/2 transport as well as other cleanups
- update to edt-ft5x06 driver to support ft5426 variant
- update to ektf2127 driver to support ektf2232 variant
- update to exc3000 driver to support EXC81W32 variant
- update to imagis driver to support IST3038 variant
- other assorted driver cleanups.
* tag 'input-for-v6.11-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (71 commits)
Input: yealink - simplify locking in sysfs attribute handling
Input: yealink - use driver core to instantiate device attributes
Input: ati-remote2 - use driver core to instantiate device attributes
Input: omap-keypad - use driver core to instantiate device attributes
Input: atmel_mxt_ts - use driver core to instantiate device attributes
Input: exc3000 - add EXC81W32 support
dt-bindings: input: touchscreen: exc3000: add EXC81W32
Input: twl4030-pwrbutton - fix kernel-doc warning
Input: himax_hx83112b - add support for HX83100A
Input: himax_hx83112b - add himax_chip struct for multi-chip support
Input: himax_hx83112b - implement MCU register reading
Input: himax_hx83112b - use more descriptive register defines
dt-bindings: input: touchscreen: himax,hx83112b: add HX83100A
Input: do not check number of events in input_pass_values()
Input: preallocate memory to hold event values
Input: rearrange input_alloc_device() to prepare for preallocating of vals
Input: simplify event handling logic
Input: make events() method return number of events processed
Input: make sure input handlers define only one processing method
Input: evdev - remove ->event() method
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"The I2C core gains documentation updates for the testunit, a cleanup
regarding unneeded 'driver_data' and more sanity checks in the char
device.
For the host drivers, this release includes significant updates, with
the primary change being the renaming from "master/slave" to
"controller/target" to adhere to I2C v7 and SMBus 3.2 standards.
New Support:
- Added support for Intel Arrow Lake-H
- Added I2C support in the Arioha SoC by linking the Mediatek I2C
controller
Cleanups:
- Added the MODULE_DESCRIPTION() macro, resolving a modpost warning
in the ALi 1563 Southbridge driver.
- Constified the regmap_config declaration in the i2c-designware
driver.
- Improved the coding style in the Renesas R-Car driver by removing
unnecessary semicolons after brackets.
General improvements:
- In the OMAP device, replaced NOIRQ_SYSTEM_SLEEP_PM_OPS with
RUNTIME_PM_OPS to enable waking up the controller during suspend()
before suspend_noirq() kicks in.
- Improved logging in the Xilinx driver.
- Added a warning (WARN()) in the Renesas R-Car driver for spurious
interrupts.
DTS Changes:
- Removed address-cell and size-cell from the Atmel at91sam, nVidia
Tegra 20, and Samsung S3c2410 devices.
- Fixed Texas Instruments OMAP4 I2C controller to comply with the
i2c-controller.yaml schema.
- Improved indentation in DTS examples for several I2C devices.
- Converted the NXP LPC1788 binding to the dt-schema.
- Added documentation for the compatible string thead,th1520-i2c.
- Added the "power-domains" property for the Meson I2C driver.
AT24 EEPROM driver changes:
- add support for two new Microchip models
- document even more new models in DT bindings (those use fallback
compatibles so no code changes)"
* tag 'i2c-for-6.11-rc1-try2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (87 commits)
i2c: document new callbacks in i2c_algorithm
dt-bindings: i2c: amlogic,meson6-i2c: add optional power-domains
dt-bindings: i2c: at91: Add sama7d65 compatible string
i2c: st: reword according to newest specification
i2c: cpm: reword according to newest specification
i2c: virtio: reword according to newest specification
i2c: nvidia-gpu: reword according to newest specification
i2c: viai2c: reword according to newest specification
i2c: viperboard: reword according to newest specification
i2c: uniphier: reword according to newest specification
i2c: uniphier-f: reword according to newest specification
i2c: tiny-usb: reword according to newest specification
i2c: thunderx-pcidrv: reword according to newest specification
i2c: tegra-bpmp: reword according to newest specification
i2c: taos-evm: reword according to newest specification
i2c: sun6i-p2wi: reword according to newest specification
i2c: stm32f4: reword according to newest specification
i2c: sprd: reword according to newest specification
i2c: sis5595: reword according to newest specification
i2c: rzv2m: reword according to newest specification
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc and other driver updates from Greg KH:
"Here is the "big" set of char/misc and other driver subsystem changes
for 6.11-rc1. Nothing major in here, just loads of new drivers and
updates. Included in here are:
- IIO api updates and new drivers added
- wait_interruptable_timeout() api cleanups for some drivers
- MODULE_DESCRIPTION() additions for loads of drivers
- parport out-of-bounds fix
- interconnect driver updates and additions
- mhi driver updates and additions
- w1 driver fixes
- binder speedups and fixes
- eeprom driver updates
- coresight driver updates
- counter driver update
- new misc driver additions
- other minor api updates
All of these, EXCEPT for the final Kconfig build fix for 32bit
systems, have been in linux-next for a while with no reported issues.
The Kconfig fixup went in 29 hours ago, so might have missed the
latest linux-next, but was acked by everyone involved"
* tag 'char-misc-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (330 commits)
misc: Kconfig: exclude mrvl-cn10k-dpi compilation for 32-bit systems
misc: delete Makefile.rej
binder: fix hang of unregistered readers
misc: Kconfig: add a new dependency for MARVELL_CN10K_DPI
virtio: add missing MODULE_DESCRIPTION() macro
agp: uninorth: add missing MODULE_DESCRIPTION() macro
spmi: add missing MODULE_DESCRIPTION() macros
dev/parport: fix the array out-of-bounds risk
samples: configfs: add missing MODULE_DESCRIPTION() macro
misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver
misc: keba: Fix missing AUXILIARY_BUS dependency
slimbus: Fix struct and documentation alignment in stream.c
MAINTAINERS: CC dri-devel list on Qualcomm FastRPC patches
misc: fastrpc: use coherent pool for untranslated Compute Banks
misc: fastrpc: support complete DMA pool access to the DSP
misc: fastrpc: add missing MODULE_DESCRIPTION() macro
misc: fastrpc: Add missing dev_err newlines
misc: fastrpc: Use memdup_user()
nvmem: core: Implement force_ro sysfs attribute
nvmem: Use sysfs_emit() for type attribute
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt changes for 6.11-rc1.
Nothing earth-shattering in here, just constant forward progress in
adding support for new hardware and better debugging functionalities
for thunderbolt devices and the subsystem. Included in here are:
- thunderbolt debugging update and driver additions
- xhci driver updates
- typec driver updates
- kselftest device driver changes (acked by the relevant maintainers,
depended on other changes in this tree.)
- cdns3 driver updates
- gadget driver updates
- MODULE_DESCRIPTION() additions
- dwc3 driver updates and fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (112 commits)
kselftest: devices: Add test to detect device error logs
kselftest: Move ksft helper module to common directory
kselftest: devices: Move discoverable devices test to subdirectory
usb: gadget: f_uac2: fix non-newline-terminated function name
USB: uas: Implement the new shutdown callback
USB: core: add 'shutdown' callback to usb_driver
usb: typec: Drop explicit initialization of struct i2c_device_id::driver_data to 0
usb: dwc3: enable CCI support for AMD-xilinx DWC3 controller
usb: dwc2: add support for other Lantiq SoCs
usb: gadget: Use u16 types for 16-bit fields
usb: gadget: midi2: Fix incorrect default MIDI2 protocol setup
usb: dwc3: core: Check all ports when set phy suspend
usb: typec: tcpci: add support to set connector orientation
dt-bindings: usb: Convert fsl-usb to yaml
usb: typec: ucsi: reorder operations in ucsi_run_command()
usb: typec: ucsi: extract common code for command handling
usb: typec: ucsi: inline ucsi_read_message_in
usb: typec: ucsi: rework command execution functions
usb: typec: ucsi: split read operation
usb: typec: ucsi: simplify command sending API
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial updates from Greg KH:
"Here is a small set of tty and serial driver updates for 6.11-rc1. Not
much happened this cycle, unlike the previous kernel release which had
lots of "excitement" in this part of the kernel. Included in here are
the following changes:
- dt binding updates for new platforms
- 8250 driver updates
- various small serial driver fixes and updates
- printk/console naming and matching attempt #2 (was reverted for
6.10-final, should be good to go this time around, acked by the
relevant maintainers).
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (22 commits)
Documentation: kernel-parameters: Add DEVNAME:0.0 format for serial ports
serial: core: Add serial_base_match_and_update_preferred_console()
printk: Add match_devname_and_update_preferred_console()
serial: sc16is7xx: hardware reset chip if reset-gpios is defined in DT
dt-bindings: serial: sc16is7xx: add reset-gpios
dt-bindings: serial: vt8500-uart: convert to json-schema
serial: 8250_platform: Explicitly show we initialise ISA ports only once
tty: add missing MODULE_DESCRIPTION() macros
dt-bindings: serial: mediatek,uart: add MT7988
serial: sh-sci: Add support for RZ/V2H(P) SoC
dt-bindings: serial: Add documentation for Renesas RZ/V2H(P) (R9A09G057) SCIF support
dt-bindings: serial: renesas,scif: Make 'interrupt-names' property as required
dt-bindings: serial: renesas,scif: Validate 'interrupts' and 'interrupt-names'
dt-bindings: serial: renesas,scif: Move ref for serial.yaml at the end
riscv: dts: starfive: jh7110: Add the core reset and jh7110 compatible for uarts
serial: 8250_dw: Use reset array API to get resets
dt-bindings: serial: snps-dw-apb-uart: Add one more reset signal for StarFive JH7110 SoC
serial: 8250: Extract platform driver
serial: 8250: Extract RSA bits
serial: imx: stop casting struct uart_port to struct imx_port
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter.
Notably this includes fixes for a s390 build breakage.
Current release - new code bugs:
- eth: fbnic: fix s390 build
- eth: airoha: fix NULL pointer dereference in
airoha_qdma_cleanup_rx_queue()
Previous releases - regressions:
- flow_dissector: use DEBUG_NET_WARN_ON_ONCE
- ipv4: fix incorrect TOS in route get reply
- dsa: fix chip-wide frame size config in some drivers
Previous releases - always broken:
- netfilter: nf_set_pipapo: fix initial map fill
- eth: gve: fix XDP TX completion handling when counters overflow"
* tag 'net-6.11-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net:
eth: fbnic: don't build the driver when skb has more than 21 frags
net: dsa: b53: Limit chip-wide jumbo frame config to CPU ports
net: dsa: mv88e6xxx: Limit chip-wide frame size config to CPU ports
net: airoha: Fix NULL pointer dereference in airoha_qdma_cleanup_rx_queue()
net: wwan: t7xx: add support for Dell DW5933e
ipv4: Fix incorrect TOS in fibmatch route get reply
ipv4: Fix incorrect TOS in route get reply
net: flow_dissector: use DEBUG_NET_WARN_ON_ONCE
driver core: auxiliary bus: Fix documentation of auxiliary_device
net: airoha: fix error branch in airoha_dev_xmit and airoha_set_gdm_ports
gve: Fix XDP TX completion handling when counters overflow
ipvs: properly dereference pe in ip_vs_add_service
selftests: netfilter: add test case for recent mismatch bug
netfilter: nf_set_pipapo: fix initial map fill
netfilter: ctnetlink: use helper function to calculate expect ID
eth: fbnic: fix s390 build.
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"Lots of changes in this cycle, but mostly for cleanups and
refactoring.
Significant amount of changes are about DT schema conversions for ASoC
at this time while we see other usual suspects, too.
Some highlights below:
Core:
- Re-introduction of PCM sync ID support API
- MIDI2 time-base extension in ALSA sequencer API
ASoC:
- Syncing of features between simple-audio-card and the two
audio-graph cards
- Support for specifying the order of operations for components
within cards to allow quirking for unusual systems
- Lots of DT schema conversions
- Continued SOF/Intel updates for topology, SoundWire, IPC3/4
- New support for Asahi Kasei AK4619, Cirrus Logic CS530x, Everest
Semiconductors ES8311, NXP i.MX95 and LPC32xx, Qualcomm LPASS v2.5
and WCD937x, Realtek RT1318 and RT1320 and Texas Instruments
PCM5242
HD-audio:
- More quirks, Intel PantherLake support, senarytech codec support
- Refactoring of Cirrus codec component-binding
Others:
- ALSA control kselftest improvements, and fixes for input value
checks in various drivers"
* tag 'sound-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (349 commits)
kselftest/alsa: Log the PCM ID in pcm-test
kselftest/alsa: Use card name rather than number in test names
ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book Pro 360
ALSA: hda/tas2781: Add new quirk for Lenovo Hera2 Laptop
ALSA: seq: ump: Skip useless ports for static blocks
ALSA: pcm_dmaengine: Don't synchronize DMA channel when DMA is paused
ALSA: usb: Use BIT() for bit values
ALSA: usb: Fix UBSAN warning in parse_audio_unit()
ALSA: hda/realtek: Enable headset mic on Positivo SU C1400
ASoC: tas2781: Add new Kontrol to set tas2563 digital Volume
ASoC: codecs: wcd937x: Remove separate handling for vdd-buck supply
ASoC: codecs: wcd937x: Remove the string compare in MIC BIAS widget settings
ASoC: codecs: wcd937x-sdw: Fix Unbalanced pm_runtime_enable
ASoC: dt-bindings: cirrus,cs42xx8: Convert to dtschema
ASoC: cs530x: Remove bclk from private structure
ASoC: cs530x: Calculate proper bclk rate using TDM
ASoC: dt-bindings: cirrus,cs4270: Convert to dtschema
firmware: cs_dsp: Rename fw_ver to wmfw_ver
firmware: cs_dsp: Clarify wmfw format version log message
firmware: cs_dsp: Make wmfw and bin filename arguments const char *
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This a large collection of clk driver updates and a handful of new SoC
clk driver support.
We have the usual Qualcomm clk drivers, along with clk drivers for the
Sophgo and T-Head vendors, all to support some new SoCs.
Nothing in particular stands out to me in the updates. There's the
interconnect clk driver which exposes clks as interconnects, crossing
subsystems. There's a bunch of janitorial things that are improving
drivers in general like kmemdup_array() or fixing error paths. But
overall the updates look normal to fix the description data which is
usually the stuff that's wrong and/or untested.
Core:
- Skip gate basic type KUnit tests on s390 due to lack of MMIO
emulation
New Drivers:
- AP sub-system clock controller in the T-Head TH1520
- Sophgo Sophon sg2042 clk driver
- Qualcomm SM7150 camera, display and video clk drivers
- Qualcomm QCM2290 GPU clk driver
- Qualcomm QCS8386/QCS8084 NSS clk driver
- Qualcomm SM8650 camera and video drivers
Updates:
- Add reset support to Airoha EN7581 clk driver
- Add MODULE_DESCRIPTIONs to various clk drivers
- Introduce helper logic to expose clock controllers as simple
interconnect providers
- Use the interconnect helper above on Qualcomm ipq9574
- Add CLK_SET_RATE_PARENT to the remaining USB pipe clocks on
Qualcomm X1Elite
- Improve error handling in Qualcomm kpss-xcc driver
- Mark Qualcomm SC8280XP LPASS clock controller regmap_config const
- Export more clocks for Rockchip rk3128 peripherals
- Convert Rockchip clk drivers to use kmemdup_array()
- Drop CLK_NR_CLKS from Rockchip rk3128 and rk3188 binding headers
- Make qcom_cc_really_probe() take a struct device to allow reuse in
non-platform-drivers
- Introduce prepare-only branch clock ops in the qcom clk driver to
support clocks on buses that take locks
- Describe parent/child relationship for Qualcomm SC7280 camera GDSCs
- Support Qualcomm Huayra 2290 alpha PLL
- Adjust the highest SDCC clock frequency on Qualcomm IPQ6018 to
match HS200 support
- Add missing PCIe PIPE clocks on Qualcomm IPQ9574
- Fix various configurations and properties in the Qualcomm SA8775P,
X1E80100 and SM7280 drivers
- Park Qualcomm SM8350 GPU RCGs on XO while disabled
- Remove unused CONFIG_QCOM_RPMCC Kconfig symbol
- exynos-clkout: Remove usage of of_device_id table as
.of_match_table, because the driver is instantiated as MFD cell,
not as standalone platform driver. Populated .of_match_table
confused people few times to convert the code to
device_get_match_data(), which broke the driver
- Mark one Samsung UFS clock as critical, because having it off stops
the system from shutdown
- Use kmemdup_array() when applicable
- Remove unused 'struct gates_data' from old sunxi driver library
- Add GPADC clock and reset for Allwinner H616
- Minor Amlogic S4 clock fixes
- DT bindings Yaml conversion of the Amlogic AXG audio controller
- Amlogic C3 clock controllers support
- Amlogic clk flag added to skip init of already enabled PLLs and
avoid relocking
- Amlogic A1 DT bindings updates for system pll support
- Add missing MODULE_DESCRIPTION where necessary
- Remove obsolete clock DT binding header files
- Add Battery Backup (VBATTB) and I2C clocks, resets, and power
domains on Renesas RZ/G3S
- Add audio clocks on Renesas R-Car V4M
- Add video capture (ISPCS, CSI-2, VIN) clocks on Renesas R-Car V4M"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (135 commits)
clk: thead: Add support for T-Head TH1520 AP_SUBSYS clocks
dt-bindings: clock: Document T-Head TH1520 AP_SUBSYS controller
clk: sophgo: Avoid -Wsometimes-uninitialized in sg2042_clk_pll_set_rate()
clk/sophgo: Using BUG() instead of unreachable() in mmux_get_parent_id()
clk: mxs: Use clamp() in clk_ref_round_rate() and clk_ref_set_rate()
clk: sunxi-ng r40: Constify struct regmap_config
clk: en7523: fix rate divider for slic and spi clocks
clk: lpc32xx: Constify struct regmap_config
clk: xilinx: Constify struct regmap_config
clk: en7523: Remove PCIe reset open drain configuration for EN7581
clk: en7523: Remove pcie prepare/unpreare callbacks for EN7581 SoC
clk: en7523: Add reset-controller support for EN7581 SoC
dt-bindings: clock: airoha: Add reset support to EN7581 clock binding
dt-bindings: clock: mediatek: Document reset cells for MT8188 sys
clk: mediatek: mt8173-infracfg: Handle unallocated infracfg when module
dt-bindings: clock: mediatek: add syscon compatible for mt7622 pciesys
dt-bindings: clock: sprd,sc9860-clk: convert to YAML
dt-bindings: clock: qoriq-clock: convert to yaml format
clk: qcom: Park shared RCGs upon registration
clk: qcom: ipq9574: Use icc-clk for enabling NoC related clocks
...
|
|
Pull virtio updates from Michael Tsirkin:
"Several new features here:
- Virtio find vqs API has been reworked (required to fix the
scalability issue we have with adminq, which I hope to merge later
in the cycle)
- vDPA driver for Marvell OCTEON
- virtio fs performance improvement
- mlx5 migration speedups
Fixes, cleanups all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (56 commits)
virtio: rename virtio_find_vqs_info() to virtio_find_vqs()
virtio: remove unused virtio_find_vqs() and virtio_find_vqs_ctx() helpers
virtio: convert the rest virtio_find_vqs() users to virtio_find_vqs_info()
virtio_balloon: convert to use virtio_find_vqs_info()
virtiofs: convert to use virtio_find_vqs_info()
scsi: virtio_scsi: convert to use virtio_find_vqs_info()
virtio_net: convert to use virtio_find_vqs_info()
virtio_crypto: convert to use virtio_find_vqs_info()
virtio_console: convert to use virtio_find_vqs_info()
virtio_blk: convert to use virtio_find_vqs_info()
virtio: rename find_vqs_info() op to find_vqs()
virtio: remove the original find_vqs() op
virtio: call virtio_find_vqs_info() from virtio_find_single_vq() directly
virtio: convert find_vqs() op implementations to find_vqs_info()
virtio_pci: convert vp_*find_vqs() ops to find_vqs_info()
virtio: introduce virtio_queue_info struct and find_vqs_info() config op
virtio: make virtio_find_single_vq() call virtio_find_vqs()
virtio: make virtio_find_vqs() call virtio_find_vqs_ctx()
caif_virtio: use virtio_find_single_vq() for single virtqueue finding
vdpa/mlx5: Don't enable non-active VQs in .set_vq_ready()
...
|
|
Pull VFIO updates from Alex Williamson:
- Add support for 8-byte accesses when using read/write through the
device regions. This fills a gap for userspace drivers that might
not be able to use access through mmap to perform native register
width accesses (Gerd Bayer)
- Add missing MODULE_DESCRIPTION to vfio-mdev sample drivers and
replace a non-standard MODULE_INFO usage (Jeff Johnson)
* tag 'vfio-v6.11-rc1' of https://github.com/awilliam/linux-vfio:
vfio-mdev: add missing MODULE_DESCRIPTION() macros
vfio/pci: Fix typo in macro to declare accessors
vfio/pci: Support 8-byte PCI loads and stores
vfio/pci: Extract duplicated code into macro
|
|
RNDGETPOOL was thankfully removed twenty years ago, but it's stuck
around in headers. Probably removing it from uapi headers isn't great in
case there are some weird users out there, but we should at least mark
this as having been removed, to save future readers the same goose chase
I just went on.
Link: https://lore.kernel.org/all/[email protected]/
Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Jason A. Donenfeld <[email protected]>
|
|
Provide a generic C vDSO getrandom() implementation, which operates on
an opaque state returned by vgetrandom_alloc() and produces random bytes
the same way as getrandom(). This has the following API signature:
ssize_t vgetrandom(void *buffer, size_t len, unsigned int flags,
void *opaque_state, size_t opaque_len);
The return value and the first three arguments are the same as ordinary
getrandom(), while the last two arguments are a pointer to the opaque
allocated state and its size. Were all five arguments passed to the
getrandom() syscall, nothing different would happen, and the functions
would have the exact same behavior.
The actual vDSO RNG algorithm implemented is the same one implemented by
drivers/char/random.c, using the same fast-erasure techniques as that.
Should the in-kernel implementation change, so too will the vDSO one.
It requires an implementation of ChaCha20 that does not use any stack,
in order to maintain forward secrecy if a multi-threaded program forks
(though this does not account for a similar issue with SA_SIGINFO
copying registers to the stack), so this is left as an
architecture-specific fill-in. Stack-less ChaCha20 is an easy algorithm
to implement on a variety of architectures, so this shouldn't be too
onerous.
Initially, the state is keyless, and so the first call makes a
getrandom() syscall to generate that key, and then uses it for
subsequent calls. By keeping track of a generation counter, it knows
when its key is invalidated and it should fetch a new one using the
syscall. Later, more than just a generation counter might be used.
Since MADV_WIPEONFORK is set on the opaque state, the key and related
state is wiped during a fork(), so secrets don't roll over into new
processes, and the same state doesn't accidentally generate the same
random stream. The generation counter, as well, is always >0, so that
the 0 counter is a useful indication of a fork() or otherwise
uninitialized state.
If the kernel RNG is not yet initialized, then the vDSO always calls the
syscall, because that behavior cannot be emulated in userspace, but
fortunately that state is short lived and only during early boot. If it
has been initialized, then there is no need to inspect the `flags`
argument, because the behavior does not change post-initialization
regardless of the `flags` value.
Since the opaque state passed to it is mutated, vDSO getrandom() is not
reentrant, when used with the same opaque state, which libc should be
mindful of.
The function works over an opaque per-thread state of a particular size,
which must be marked VM_WIPEONFORK, VM_DONTDUMP, VM_NORESERVE, and
VM_DROPPABLE for proper operation. Over time, the nuances of these
allocations may change or grow or even differ based on architectural
features.
The opaque state passed to vDSO getrandom() must be allocated using the
mmap_flags and mmap_prot parameters provided by the vgetrandom_opaque_params
struct, which also contains the size of each state. That struct can be
obtained with a call to vgetrandom(NULL, 0, 0, ¶ms, ~0UL). Then,
libc can call mmap(2) and slice up the returned array into a state per
each thread, while ensuring that no single state straddles a page
boundary. Libc is expected to allocate a chunk of these on first use,
and then dole them out to threads as they're created, allocating more
when needed.
vDSO getrandom() provides the ability for userspace to generate random
bytes quickly and safely, and is intended to be integrated into libc's
thread management. As an illustrative example, the introduced code in
the vdso_test_getrandom self test later in this series might be used to
do the same outside of libc. In a libc the various pthread-isms are
expected to be elided into libc internals.
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Jason A. Donenfeld <[email protected]>
|
|
The vDSO getrandom() implementation works with a buffer allocated with a
new system call that has certain requirements:
- It shouldn't be written to core dumps.
* Easy: VM_DONTDUMP.
- It should be zeroed on fork.
* Easy: VM_WIPEONFORK.
- It shouldn't be written to swap.
* Uh-oh: mlock is rlimited.
* Uh-oh: mlock isn't inherited by forks.
- It shouldn't reserve actual memory, but it also shouldn't crash when
page faulting in memory if none is available
* Uh-oh: VM_NORESERVE means segfaults.
It turns out that the vDSO getrandom() function has three really nice
characteristics that we can exploit to solve this problem:
1) Due to being wiped during fork(), the vDSO code is already robust to
having the contents of the pages it reads zeroed out midway through
the function's execution.
2) In the absolute worst case of whatever contingency we're coding for,
we have the option to fallback to the getrandom() syscall, and
everything is fine.
3) The buffers the function uses are only ever useful for a maximum of
60 seconds -- a sort of cache, rather than a long term allocation.
These characteristics mean that we can introduce VM_DROPPABLE, which
has the following semantics:
a) It never is written out to swap.
b) Under memory pressure, mm can just drop the pages (so that they're
zero when read back again).
c) It is inherited by fork.
d) It doesn't count against the mlock budget, since nothing is locked.
e) If there's not enough memory to service a page fault, it's not fatal,
and no signal is sent.
This way, allocations used by vDSO getrandom() can use:
VM_DROPPABLE | VM_DONTDUMP | VM_WIPEONFORK | VM_NORESERVE
And there will be no problem with OOMing, crashing on overcommitment,
using memory when not in use, not wiping on fork(), coredumps, or
writing out to swap.
In order to let vDSO getrandom() use this, expose these via mmap(2) as
MAP_DROPPABLE.
Note that this involves removing the MADV_FREE special case from
sort_folio(), which according to Yu Zhao is unnecessary and will simply
result in an extra call to shrink_folio_list() in the worst case. The
chunk removed reenables the swapbacked flag, which we don't want for
VM_DROPPABLE, and we can't conditionalize it here because there isn't a
vma reference available.
Finally, the provided self test ensures that this is working as desired.
Cc: [email protected]
Acked-by: David Hildenbrand <[email protected]>
Signed-off-by: Jason A. Donenfeld <[email protected]>
|
|
Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, lpfc, qla2xxx, mpi3mr) plus some
misc small fixes.
The only core changes are to both bsg and scsi to pass in the device
instead of setting it afterwards as q->queuedata, so no functional
change"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (69 commits)
scsi: aha152x: Use DECLARE_COMPLETION_ONSTACK for non-constant completion
scsi: qla2xxx: Convert comma to semicolon
scsi: qla2xxx: Update version to 10.02.09.300-k
scsi: qla2xxx: Use QP lock to search for bsg
scsi: qla2xxx: Reduce fabric scan duplicate code
scsi: qla2xxx: Fix optrom version displayed in FDMI
scsi: qla2xxx: During vport delete send async logout explicitly
scsi: qla2xxx: Complete command early within lock
scsi: qla2xxx: Fix flash read failure
scsi: qla2xxx: Return ENOBUFS if sg_cnt is more than one for ELS cmds
scsi: qla2xxx: Fix for possible memory corruption
scsi: qla2xxx: validate nvme_local_port correctly
scsi: qla2xxx: Unable to act on RSCN for port online
scsi: ufs: exynos: Add support for Flash Memory Protector (FMP)
scsi: ufs: core: Add UFSHCD_QUIRK_KEYS_IN_PRDT
scsi: ufs: core: Add fill_crypto_prdt variant op
scsi: ufs: core: Add UFSHCD_QUIRK_BROKEN_CRYPTO_ENABLE
scsi: ufs: core: fold ufshcd_clear_keyslot() into its caller
scsi: ufs: core: Add UFSHCD_QUIRK_CUSTOM_CRYPTO_PROFILE
scsi: ufs: mcq: Make .get_hba_mac() optional
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mikulas Patocka:
- Optimize processing of flush bios in the dm-linear and dm-stripe
targets
- Dm-io cleansups and refactoring
- Remove unused 'struct thunk' in dm-cache
- Handle minor device numbers > 255 in dm-init
- Dm-verity refactoring & enabling platform keyring
- Fix warning in dm-raid
- Improve dm-crypt performance - split bios to smaller pieces, so that
They could be processed concurrently
- Stop using blk_limits_io_{min,opt}
- Dm-vdo cleanup and refactoring
- Remove max_write_zeroes_granularity and max_secure_erase_granularity
- Dm-multipath cleanup & refactoring
- Add dm-crypt and dm-integrity support for non-power-of-2 sector size
- Fix reshape in dm-raid
- Make dm_block_validator const
* tag 'for-6.11/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (33 commits)
dm vdo: fix a minor formatting issue in vdo.rst
dm vdo int-map: fix kerneldoc formatting
dm vdo repair: add missing kerneldoc fields
dm: Constify struct dm_block_validator
dm-integrity: introduce the Inline mode
dm: introduce the target flag mempool_needs_integrity
dm raid: fix stripes adding reshape size issues
dm raid: move _get_reshape_sectors() as prerequisite to fixing reshape size issues
dm-crypt: support for per-sector NVMe metadata
dm mpath: don't call dm_get_device in multipath_message
dm: factor out helper function from dm_get_device
dm-verity: fix dm_is_verity_target() when dm-verity is builtin
dm: Remove max_secure_erase_granularity
dm: Remove max_write_zeroes_granularity
dm vdo indexer: use swap() instead of open coding it
dm vdo: remove unused struct 'uds_attribute'
dm: stop using blk_limits_io_{min,opt}
dm-crypt: limit the size of encryption requests
dm verity: add support for signature verification with platform keyring
dm-raid: Fix WARN_ON_ONCE check for sync_thread in raid_resume
...
|
|
git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- reduce duplicate swiotlb pool lookups (Michael Kelley)
- minor small fixes (Yicong Yang, Yang Li)
* tag 'dma-mapping-6.11-2024-07-19' of git://git.infradead.org/users/hch/dma-mapping:
swiotlb: fix kernel-doc description for swiotlb_del_transient
swiotlb: reduce swiotlb pool lookups
dma-mapping: benchmark: Don't starve others when doing the test
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Will Deacon:
"Core:
- Support for the "ats-supported" device-tree property
- Removal of the 'ops' field from 'struct iommu_fwspec'
- Introduction of iommu_paging_domain_alloc() and partial conversion
of existing users
- Introduce 'struct iommu_attach_handle' and provide corresponding
IOMMU interfaces which will be used by the IOMMUFD subsystem
- Remove stale documentation
- Add missing MODULE_DESCRIPTION() macro
- Misc cleanups
Allwinner Sun50i:
- Ensure bypass mode is disabled on H616 SoCs
- Ensure page-tables are allocated below 4GiB for the 32-bit
page-table walker
- Add new device-tree compatible strings
AMD Vi:
- Use try_cmpxchg64() instead of cmpxchg64() when updating pte
Arm SMMUv2:
- Print much more useful information on context faults
- Fix Qualcomm TBU probing when CONFIG_ARM_SMMU_QCOM_DEBUG=n
- Add new Qualcomm device-tree bindings
Arm SMMUv3:
- Support for hardware update of access/dirty bits and reporting via
IOMMUFD
- More driver rework from Jason, this time updating the PASID/SVA
support to prepare for full IOMMUFD support
- Add missing MODULE_DESCRIPTION() macro
- Minor fixes and cleanups
NVIDIA Tegra:
- Fix for benign fwspec initialisation issue exposed by rework on the
core branch
Intel VT-d:
- Use try_cmpxchg64() instead of cmpxchg64() when updating pte
- Use READ_ONCE() to read volatile descriptor status
- Remove support for handling Execute-Requested requests
- Avoid calling iommu_domain_alloc()
- Minor fixes and refactoring
Qualcomm MSM:
- Updates to the device-tree bindings"
* tag 'iommu-updates-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (72 commits)
iommu/tegra-smmu: Pass correct fwnode to iommu_fwspec_init()
iommu/vt-d: Fix identity map bounds in si_domain_init()
iommu: Move IOMMU_DIRTY_NO_CLEAR define
dt-bindings: iommu: Convert msm,iommu-v0 to yaml
iommu/vt-d: Fix aligned pages in calculate_psi_aligned_address()
iommu/vt-d: Limit max address mask to MAX_AGAW_PFN_WIDTH
docs: iommu: Remove outdated Documentation/userspace-api/iommu.rst
arm64: dts: fvp: Enable PCIe ATS for Base RevC FVP
iommu/of: Support ats-supported device-tree property
dt-bindings: PCI: generic: Add ats-supported property
iommu: Remove iommu_fwspec ops
OF: Simplify of_iommu_configure()
ACPI: Retire acpi_iommu_fwspec_ops()
iommu: Resolve fwspec ops automatically
iommu/mediatek-v1: Clean up redundant fwspec checks
RDMA/usnic: Use iommu_paging_domain_alloc()
wifi: ath11k: Use iommu_paging_domain_alloc()
wifi: ath10k: Use iommu_paging_domain_alloc()
drm/msm: Use iommu_paging_domain_alloc()
vhost-vdpa: Use iommu_paging_domain_alloc()
...
|
|
Pull rdma updates from Jason Gunthorpe:
"Usual collection of small improvements and fixes:
- Bug fixes and minor improvments in efa, irdma, mlx4, mlx5, rxe,
hf1, qib, ocrdma
- bnxt_re support for MSN, which is a new retransmit logic
- Initial mana support for RC qps
- Use after free bug and cleanups in iwcm
- Reduce resource usage in mlx5 when RDMA verbs features are not used
- New verb to drain shared recieve queues, similar to normal recieve
queues. This is necessary to allow ULPs a clean shutdown. Used in
the iscsi rdma target
- mlx5 support for more than 16 bits of doorbell indexes
- Doorbell moderation support for bnxt_re
- IB multi-plane support for mlx5
- New EFA adaptor PCI IDs
- RDMA_NAME_ASSIGN_TYPE_USER to hint to userspace that it shouldn't
rename the device
- A collection of hns bugs
- Fix long standing bug in bnxt_re with incorrect endian handling of
immediate data"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (65 commits)
IB/hfi1: Constify struct flag_table
RDMA/mana_ib: Set correct device into ib
bnxt_re: Fix imm_data endianness
RDMA: Fix netdev tracker in ib_device_set_netdev
RDMA/hns: Fix mbx timing out before CMD execution is completed
RDMA/hns: Fix insufficient extend DB for VFs.
RDMA/hns: Fix undifined behavior caused by invalid max_sge
RDMA/hns: Fix shift-out-bounds when max_inline_data is 0
RDMA/hns: Fix missing pagesize and alignment check in FRMR
RDMA/hns: Fix unmatch exception handling when init eq table fails
RDMA/hns: Fix soft lockup under heavy CEQE load
RDMA/hns: Check atomic wr length
RDMA/ocrdma: Don't inline statistics functions
RDMA/core: Introduce "name_assign_type" for an IB device
RDMA/qib: Fix truncation compilation warnings in qib_verbs.c
RDMA/qib: Fix truncation compilation warnings in qib_init.c
RDMA/efa: Add EFA 0xefa3 PCI ID
RDMA/mlx5: Support per-plane port IB counters by querying PPCNT register
net/mlx5: mlx5_ifc update for accessing ppcnt register of plane ports
RDMA/mlx5: Add plane index support when querying PTYS registers
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
- The iova_bitmap logic for efficiently reporting dirty pages back to
userspace has a few more tricky corner case bugs that have been
resolved and backed with new tests.
The revised version has simpler logic.
- Shared branch with iommu for handle support when doing domain attach.
Handles allow the domain owner to include additional private data on
a per-device basis.
- IO Page Fault Reporting to userspace via iommufd. Page faults can be
generated on fault capable HWPTs when a translation is not present.
Routing them to userspace would allow a VMM to be able to virtualize
them into an emulated vIOMMU. This is the next step to fully enabling
vSVA support.
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: (26 commits)
iommufd: Put constants for all the uAPI enums
iommufd: Fix error pointer checking
iommufd: Add check on user response code
iommufd: Remove IOMMUFD_PAGE_RESP_FAILURE
iommufd: Require drivers to supply the cache_invalidate_user ops
iommufd/selftest: Add coverage for IOPF test
iommufd/selftest: Add IOPF support for mock device
iommufd: Associate fault object with iommufd_hw_pgtable
iommufd: Fault-capable hwpt attach/detach/replace
iommufd: Add iommufd fault object
iommufd: Add fault and response message definitions
iommu: Extend domain attach group with handle support
iommu: Add attach handle to struct iopf_group
iommu: Remove sva handle list
iommu: Introduce domain attachment handle
iommufd/iova_bitmap: Remove iterator logic
iommufd/iova_bitmap: Dynamic pinning on iova_bitmap_set()
iommufd/iova_bitmap: Consolidate iova_bitmap_set exit conditionals
iommufd/iova_bitmap: Move initial pinning to iova_bitmap_for_each()
iommufd/iova_bitmap: Cache mapped length in iova_bitmap_map struct
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
"API:
- Test setkey in no-SIMD context
- Add skcipher speed test for user-specified algorithm
Algorithms:
- Add x25519 support on ppc64le
- Add VAES and AVX512 / AVX10 optimized AES-GCM on x86
- Remove sm2 algorithm
Drivers:
- Add Allwinner H616 support to sun8i-ce
- Use DMA in stm32
- Add Exynos850 hwrng support to exynos"
* tag 'v6.11-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (81 commits)
hwrng: core - remove (un)register_miscdev()
crypto: lib/mpi - delete unnecessary condition
crypto: testmgr - generate power-of-2 lengths more often
crypto: mxs-dcp - Ensure payload is zero when using key slot
hwrng: Kconfig - Do not enable by default CN10K driver
crypto: starfive - Fix nent assignment in rsa dec
crypto: starfive - Align rsa input data to 32-bit
crypto: qat - fix unintentional re-enabling of error interrupts
crypto: qat - extend scope of lock in adf_cfg_add_key_value_param()
Documentation: qat: fix auto_reset attribute details
crypto: sun8i-ce - add Allwinner H616 support
crypto: sun8i-ce - wrap accesses to descriptor address fields
dt-bindings: crypto: sun8i-ce: Add compatible for H616
hwrng: core - Fix wrong quality calculation at hw rng registration
hwrng: exynos - Enable Exynos850 support
hwrng: exynos - Add SMC based TRNG operation
hwrng: exynos - Implement bus clock control
hwrng: exynos - Use devm_clk_get_enabled() to get the clock
hwrng: exynos - Improve coding style
dt-bindings: rng: Add Exynos850 support to exynos-trng
...
|
|
The congestion_count was introduced into the struct cgroup by
commit d09d8df3a294 ("blkcg: add generic throttling mechanism"),
but since it is closely related to the blkio subsys, it is not
appropriate to put it in the struct cgroup, so let's move it to
struct blkcg. There should be no functional changes because blkcg
is per cgroup.
Signed-off-by: Xiu Jianfeng <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
Configuration for sbq:
depth=64, wake_batch=6, shift=6, map_nr=1
1. There are 64 requests in progress:
map->word = 0xFFFFFFFFFFFFFFFF
2. After all the 64 requests complete, and no more requests come:
map->word = 0xFFFFFFFFFFFFFFFF, map->cleared = 0xFFFFFFFFFFFFFFFF
3. Now two tasks try to allocate requests:
T1: T2:
__blk_mq_get_tag .
__sbitmap_queue_get .
sbitmap_get .
sbitmap_find_bit .
sbitmap_find_bit_in_word .
__sbitmap_get_word -> nr=-1 __blk_mq_get_tag
sbitmap_deferred_clear __sbitmap_queue_get
/* map->cleared=0xFFFFFFFFFFFFFFFF */ sbitmap_find_bit
if (!READ_ONCE(map->cleared)) sbitmap_find_bit_in_word
return false; __sbitmap_get_word -> nr=-1
mask = xchg(&map->cleared, 0) sbitmap_deferred_clear
atomic_long_andnot() /* map->cleared=0 */
if (!(map->cleared))
return false;
/*
* map->cleared is cleared by T1
* T2 fail to acquire the tag
*/
4. T2 is the sole tag waiter. When T1 puts the tag, T2 cannot be woken
up due to the wake_batch being set at 6. If no more requests come, T1
will wait here indefinitely.
This patch achieves two purposes:
1. Check on ->cleared and update on both ->cleared and ->word need to
be done atomically, and using spinlock could be the simplest solution.
2. Add extra check in sbitmap_deferred_clear(), to identify whether
->word has free bits.
Fixes: ea86ea2cdced ("sbitmap: ammortize cost of clearing bits")
Signed-off-by: Yang Yang <[email protected]>
Reviewed-by: Ming Lei <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
Add a BUILD_BUG_ON() call to ensure that we are not missing entries in
rqf_name[].
Reviewed-by: Bart Van Assche <[email protected]>
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
Similar to what we do for enum req_flag_bits, divide the definition of
RQF_x flags into an enum to declare the bits and an actual flag.
Tweak some comments to not spill onto new lines.
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
Add a BUILD_BUG_ON() call to ensure that we are not missing entries in
cmd_flag_name[].
Reviewed-by: Bart Van Assche <[email protected]>
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
Make BLK_TAG_ALLOC_x an enum and add a "max" entry.
Add a BUILD_BUG_ON() call to ensure that we are not missing entries in
hctx_flag_name[].
Reviewed-by: Bart Van Assche <[email protected]>
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
Refresh values in BLK_MQ_F_x enum, and then re-arrange members in
hctx_flag_name[] to match that enum. Renumber
BLK_MQ_F_ALLOC_POLICY_START_BIT to match the value refresh.
Add a BUILD_BUG_ON() call to ensure that we are not missing entries in
hctx_flag_name[].
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
Add a build-time assert that we are not missing entries from
hctx_state_name[]. For this, create a separate enum for state flags and add
a "max" entry for BLK_MQ_S_x flags.
The numbering for those enum values is as default, so don't explicitly
number.
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
This will allow us better keep in sync with blk_queue_flag_name[].
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
BLK_MQ_MAX_DEPTH is defined as an enumerated value, but has no real
relation to the other members in its enum, so just use #define to provide
the definition.
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
BLK_MQ_CPU_WORK_BATCH is defined in include/linux/blk-mq.h, but only used
in blk-mq.c, so relocate to block/blk-mq.h
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
QUEUE_FLAG_STOPPED is entirely unused.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Chaitanya Kulkarni <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
|
|
- Make switchtec_class constant (Greg Kroah-Hartman)
* pci/switchtec:
PCI: switchtec: Make switchtec_class constant
|
|
- Remove unused struct pci_epf_group.type_group (Christophe JAILLET)
- Use cached epc_features instead of pci_epc_get_features() to avoid having
to check for failure (potential NULL pointer dereference) (Manivannan
Sadhasivam)
- Drop pointless local msix_capable variable in pci_epf_test_alloc_space()
(Manivannan Sadhasivam)
- Rename struct pci_epc_event_ops.core_init to .epc_init, since "core" is
no longer meaningful here (Manivannan Sadhasivam)
- Rename pci_epc_bme_notify(), pci_epf_mhi_bme(), pci_epc_bme_notify() to
spell out "bus_master_enable" instead of "bme" (Manivannan Sadhasivam)
- Factor pci_epf_test_clear_bar() and pci_epf_test_free_space() out of
pci_epf_test_unbind() so they can be reused elsewhere (Manivannan
Sadhasivam)
- Move DMA initialization to the pci_epf_mhi_epc_init() callback so
endpoint drivers do this uniformly (Manivannan Sadhasivam)
- Add endpoint testing for Link Down events (Manivannan Sadhasivam)
- Add 'epc_deinit' event so endpoints that can be reset via PERST# (qcom,
tegra194) can notify EPF drivers when this happens (Manivannan
Sadhasivam)
- Make pci_epc_class constant (Greg Kroah-Hartman)
- Fix vpci_scan_bus() error checking to print error for failure (not
success) and clean up after failure (Dan Carpenter)
- Fix epf_ntb_epc_cleanup() error handling to clean up scratchpad BARs and
clean up in mirror order of allocation (Dan Carpenter)
- Add rk3588, which requires 64KB BAR alignment, to pci_endpoint_test
(Niklas Cassel)
- Use memcpy_toio()/memcpy_fromio() for endpoint BAR tests to improve
performance (Niklas Cassel)
- Set DMA mask to 48 bits always to simplify endpoint test, since there's
there's no need to check for error or to fallback to 32 bits (Frank Li)
- Suggest using programmable Vendor/Device ID (when supported) to use
pci_endpoint_test without having to add new entries (Yoshihiro Shimoda)
- Remove unused pci_endpoint_test_bar_{readl,writel}() (Jiapeng Chong)
- Remove 'linkup' and add 'add_cfs' to the endpoint function driver 'ops'
documentation to match the code (Alexander Stein)
-
* pci/endpoint:
Documentation: PCI: pci-endpoint: Fix EPF ops list
misc: pci_endpoint_test: Remove unused pci_endpoint_test_bar_{readl,writel} functions
misc: pci_endpoint_test: Document policy about adding pci_device_id
misc: pci_endpoint_test: Refactor dma_set_mask_and_coherent() logic
misc: pci_endpoint_test: Use memcpy_toio()/memcpy_fromio() for BAR tests
misc: pci_endpoint_test: Add support for Rockchip rk3588
PCI: endpoint: Fix error handling in epf_ntb_epc_cleanup()
PCI: endpoint: Clean up error handling in vpci_scan_bus()
PCI: endpoint: Make pci_epc_class struct constant
PCI: endpoint: Introduce 'epc_deinit' event and notify the EPF drivers
PCI: endpoint: pci-epf-test: Handle Link Down event
PCI: endpoint: pci-epf-{mhi/test}: Move DMA initialization to EPC init callback
PCI: endpoint: pci-epf-test: Refactor pci_epf_test_unbind() function
PCI: endpoint: Rename BME to Bus Master Enable
PCI: endpoint: Rename core_init() callback in 'struct pci_epc_event_ops' to epc_init()
PCI: endpoint: pci-epf-test: Use 'msix_capable' flag directly in pci_epf_test_alloc_space()
PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init()
PCI: endpoint: Remove unused field in struct pci_epf_group
|
|
- Rename find_resource() to find_resource_space() to make it more
descriptive for exporting outside resource.c (Ilpo Järvinen)
- Document find_resource_space() and the resource_constraint struct it uses
(Ilpo Järvinen)
- Add typedef resource_alignf to make it simpler to declare allocation
constraint alignf callbacks (Ilpo Järvinen)
- Open-code the no-constraint simple alignment case to make the
simple_align_resource() default callback unnecessary (Ilpo Järvinen)
- Export find_resource_space() because PCI bridge window allocation needs
to learn whether there's space for a window (Ilpo Järvinen)
- Fix a double-counting problem in PCI calculate_memsize() that led to
allocating larger windows each time a bus was removed and rescanned (Ilpo
Järvinen)
- When we don't have space to allocate larger bridge windows, allocate
windows only large enough for the downstream devices to prevent cases
where a device worked originally, but not after being removed and
re-added (Ilpo Järvinen)
* pci/resource:
PCI: Relax bridge window tail sizing rules
PCI: Make minimum bridge window alignment reference more obvious
PCI: Fix resource double counting on remove & rescan
resource: Export find_resource_space()
resource: Handle simple alignment inside __find_resource_space()
resource: Use typedef for alignf callback
resource: Document find_resource_space() and resource_constraint
resource: Rename find_resource() to find_resource_space()
|
|
An earlier patch changed the DECLARE_TLV_DB_SCALE declaration, but
now there are additional static const variables that cause
the same build warnings:
In file included from sound/pci/hda/tas2781_hda_i2c.c:23:
include/sound/tas2781-tlv.h:23:28: error: 'tas2563_dvc_table' defined but not used [-Werror=unused-const-variable=]
23 | static const unsigned char tas2563_dvc_table[][4] = {
| ^~~~~~~~~~~~~~~~~
In file included from include/sound/tlv.h:10,
from sound/pci/hda/tas2781_hda_i2c.c:22:
include/sound/tas2781-tlv.h:20:35: error: 'tas2563_dvc_tlv' defined but not used [-Werror=unused-const-variable=]
20 | static const DECLARE_TLV_DB_SCALE(tas2563_dvc_tlv, -12150, 50, 1);
| ^~~~~~~~~~~~~~~
Mark them all as unused as well.
Signed-off-by: Arnd Bergmann <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
|
|
Pull bcachefs updates from Kent Overstreet:
- Metadata version 1.8: Stripe sectors accounting, BCH_DATA_unstriped
This splits out the accounting of dirty sectors and stripe sectors in
alloc keys; this lets us see stripe buckets that still have unstriped
data in them.
This is needed for ensuring that erasure coding is working correctly,
as well as completing stripe creation after a crash.
- Metadata version 1.9: Disk accounting rewrite
The previous disk accounting scheme relied heavily on percpu counters
that were also sharded by outstanding journal buffer; it was fast but
not extensible or scalable, and meant that all accounting counters
were recorded in every journal entry.
The new disk accounting scheme stores accounting as normal btree
keys; updates are deltas until they are flushed by the btree write
buffer.
This means we have no practical limit on the number of counters, and
a new tagged union format that's easy to extend.
We now have counters for compression type/ratio, per-snapshot-id
usage, per-btree-id usage, and pending rebalance work.
- Self healing on read IO/checksum error
Data is now automatically rewritten if we get a read error and then a
successful retry
- Mount API conversion (thanks to Thomas Bertschinger)
- Better lockdep coverage
Previously, btree node locks were tracked individually by lockdep,
like any other lock. But we may take _many_ btree node locks
simultaneously, we easily blow through the limit of 48 locks that
lockdep can track, leading to lockdep turning itself off.
Tracking each btree node lock individually isn't really necessary
since we have our own cycle detector for deadlock avoidance and
centralized tracking of btree node locks, so we now have a single
lockdep_map in btree_trans for "any btree nodes are locked".
- Some more small incremental work towards online check_allocations
- Lots more debugging improvements
- Fixes, including:
- undefined behaviour fixes, originally noted as breaking userspace
LTO builds
- fix a spurious warning in fsck_err, reported by Marcin
- fix an integer overflow on trans->nr_updates, also reported by
Marcin; this broke during deletion of highly fragmented indirect
extents
* tag 'bcachefs-2024-07-18.2' of https://evilpiepirate.org/git/bcachefs: (120 commits)
lockdep: Add comments for lockdep_set_no{validate,track}_class()
bcachefs: Fix integer overflow on trans->nr_updates
bcachefs: silence silly kdoc warning
bcachefs: Fix fsck warning about btree_trans not passed to fsck error
bcachefs: Add an error message for insufficient rw journal devs
bcachefs: varint: Avoid left-shift of a negative value
bcachefs: darray: Don't pass NULL to memcpy()
bcachefs: Kill bch2_assert_btree_nodes_not_locked()
bcachefs: Rename BCH_WRITE_DONE -> BCH_WRITE_SUBMITTED
bcachefs: __bch2_read(): call trans_begin() on every loop iter
bcachefs: show none if label is not set
bcachefs: drop packed, aligned from bkey_inode_buf
bcachefs: btree node scan: fall back to comparing by journal seq
bcachefs: Add lockdep support for btree node locks
lockdep: lockdep_set_notrack_class()
bcachefs: Improve copygc_wait_to_text()
bcachefs: Convert clock code to u64s
bcachefs: Improve startup message
bcachefs: Self healing on read IO error
bcachefs: Make read_only a mount option again, but hidden
...
|