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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull debugobjects updates from Thomas Gleixner:
- Prevent destroying the kmem_cache on early failure.
Destroying a kmem_cache requires work queues to be set up, but in the
early failure case they are not yet initializated. So rather leak the
cache instead of triggering a BUG.
- Reduce parallel pool fill attempts.
Refilling the object pool requires to take the global pool lock,
which causes a massive performance issue when a large number of CPUs
attempt to refill concurrently. It turns out that it's sufficient to
let one CPU handle the refill from the to free list and in case there
are not enough objects on it to allocate new objects from the kmem
cache.
This also splits the free list handling from the actual allocation
path as that yields better results on RT where allocation is
restricted to preemptible code paths. The refill from free list has
no such restrictions.
- Consolidate the global and the per CPU pools to use the same data
structure, so all helper functions can be shared.
- Simplify the object allocation/free logic.
The allocation/free logic is an incomprehensible maze, which tries to
utilize the to free list and the global pool in the best way. This
all can be simplified into a straight forward comprehensible code
flow.
- Convert the allocation/free mechanism to batch mode.
Transferring objects from the global pool to the per CPU pools or
vice versa is done by walking the hlist and moving object by object.
That not only increases the pool lock held time, it also dirties up
to 17 cache lines.
This can be avoided by storing the pointer to the first object in a
batch of 16 objects in the objects themself and propagate it through
the batch when an object is enqueued into a pool or to a temporary
hlist head on allocation.
This allows to move batches of objects with at max four cache lines
dirtied and reduces the pool lock held time and therefore contention
significantly.
- Improve the object reusage
The current implementation is too agressively freeing unused objects,
which is counterproductive on bursty workloads like a kernel compile.
Address this by:
* increasing the per CPU pool size
* refilling the per CPU pool from the to be freed pool when the
per CPU pool emptied a batch
* keeping track of object usage with a exponentially wheighted
moving average which prevents the work queue callback to free
objects prematuraly.
This combined reduces the allocation/free rate for a full kernel
compile significantly:
kmem_cache_alloc() kmem_cache_free()
Baseline: 380k 330k
Improved: 170k 117k
- A few cleanups and a more cache line friendly layout of debug
information on top.
* tag 'core-debugobjects-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
debugobjects: Track object usage to avoid premature freeing of objects
debugobjects: Refill per CPU pool more agressively
debugobjects: Double the per CPU slots
debugobjects: Move pool statistics into global_pool struct
debugobjects: Implement batch processing
debugobjects: Prepare kmem_cache allocations for batching
debugobjects: Prepare for batching
debugobjects: Use static key for boot pool selection
debugobjects: Rework free_object_work()
debugobjects: Rework object freeing
debugobjects: Rework object allocation
debugobjects: Move min/max count into pool struct
debugobjects: Rename and tidy up per CPU pools
debugobjects: Use separate list head for boot pool
debugobjects: Move pools into a datastructure
debugobjects: Reduce parallel pool fill attempts
debugobjects: Make debug_objects_enabled bool
debugobjects: Provide and use free_object_list()
debugobjects: Remove pointless debug printk
debugobjects: Reuse put_objects() on OOM
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
- Put cpumask_test_cpu() check in switch_mm_irqs_off() under
CONFIG_DEBUG_VM, to micro-optimize the context-switching code (Rik
van Riel)
- Add missing details in virtual memory layout (Kirill A. Shutemov)
* tag 'x86-mm-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/tlb: Put cpumask_test_cpu() check in switch_mm_irqs_off() under CONFIG_DEBUG_VM
x86/mm/doc: Add missing details in virtual memory layout
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
- x86/boot: Remove unused function atou() (Dr. David Alan Gilbert)
- x86/cpu: Use str_yes_no() helper in show_cpuinfo_misc() (Thorsten
Blum)
- x86/platform: Switch back to struct platform_driver::remove() (Uwe
Kleine-König)
* tag 'x86-cleanups-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Remove unused function atou()
x86/cpu: Use str_yes_no() helper in show_cpuinfo_misc()
x86/platform: Switch back to struct platform_driver::remove()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 splitlock updates from Ingo Molnar:
- Move Split and Bus lock code to a dedicated file (Ravi Bangoria)
- Add split/bus lock support for AMD (Ravi Bangoria)
* tag 'x86-splitlock-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bus_lock: Add support for AMD
x86/split_lock: Move Split and Bus lock code to a dedicated file
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Core facilities:
- Add the "Lazy preemption" model (CONFIG_PREEMPT_LAZY=y), which
optimizes fair-class preemption by delaying preemption requests to
the tick boundary, while working as full preemption for
RR/FIFO/DEADLINE classes. (Peter Zijlstra)
- x86: Enable Lazy preemption (Peter Zijlstra)
- riscv: Enable Lazy preemption (Jisheng Zhang)
- Initialize idle tasks only once (Thomas Gleixner)
- sched/ext: Remove sched_fork() hack (Thomas Gleixner)
Fair scheduler:
- Optimize the PLACE_LAG when se->vlag is zero (Huang Shijie)
Idle loop:
- Optimize the generic idle loop by removing unnecessary memory
barrier (Zhongqiu Han)
RSEQ:
- Improve cache locality of RSEQ concurrency IDs for intermittent
workloads (Mathieu Desnoyers)
Waitqueues:
- Make wake_up_{bit,var} less fragile (Neil Brown)
PSI:
- Pass enqueue/dequeue flags to psi callbacks directly (Johannes
Weiner)
Preparatory patches for proxy execution:
- Add move_queued_task_locked helper (Connor O'Brien)
- Consolidate pick_*_task to task_is_pushable helper (Connor O'Brien)
- Split out __schedule() deactivate task logic into a helper (John
Stultz)
- Split scheduler and execution contexts (Peter Zijlstra)
- Make mutex::wait_lock irq safe (Juri Lelli)
- Expose __mutex_owner() (Juri Lelli)
- Remove wakeups from under mutex::wait_lock (Peter Zijlstra)
Misc fixes and cleanups:
- Remove unused __HAVE_THREAD_FUNCTIONS hook support (David
Disseldorp)
- Update the comment for TIF_NEED_RESCHED_LAZY (Sebastian Andrzej
Siewior)
- Remove unused bit_wait_io_timeout (Dr. David Alan Gilbert)
- remove the DOUBLE_TICK feature (Huang Shijie)
- fix the comment for PREEMPT_SHORT (Huang Shijie)
- Fix unnused variable warning (Christian Loehle)
- No PREEMPT_RT=y for all{yes,mod}config"
* tag 'sched-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
sched, x86: Update the comment for TIF_NEED_RESCHED_LAZY.
sched: No PREEMPT_RT=y for all{yes,mod}config
riscv: add PREEMPT_LAZY support
sched, x86: Enable Lazy preemption
sched: Enable PREEMPT_DYNAMIC for PREEMPT_RT
sched: Add Lazy preemption model
sched: Add TIF_NEED_RESCHED_LAZY infrastructure
sched/ext: Remove sched_fork() hack
sched: Initialize idle tasks only once
sched: psi: pass enqueue/dequeue flags to psi callbacks directly
sched/uclamp: Fix unnused variable warning
sched: Split scheduler and execution contexts
sched: Split out __schedule() deactivate task logic into a helper
sched: Consolidate pick_*_task to task_is_pushable helper
sched: Add move_queued_task_locked helper
locking/mutex: Expose __mutex_owner()
locking/mutex: Make mutex::wait_lock irq safe
locking/mutex: Remove wakeups from under mutex::wait_lock
sched: Improve cache locality of RSEQ concurrency IDs for intermittent workloads
sched: idle: Optimize the generic idle loop by removing needless memory barrier
...
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Currently if an fopen fails the error exit path is via code that
checks if fp is not null and closes the file, however, fp is null
so this check and close is redundant. Since the only use of the
err exit label is on the fopen check, remove it and replace the
code with a simple return of errno. Also remove variable rc since
it's no longer required.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Fan Wu <wufan@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"Uprobes:
- Add BPF session support (Jiri Olsa)
- Switch to RCU Tasks Trace flavor for better performance (Andrii
Nakryiko)
- Massively increase uretprobe SMP scalability by SRCU-protecting
the uretprobe lifetime (Andrii Nakryiko)
- Kill xol_area->slot_count (Oleg Nesterov)
Core facilities:
- Implement targeted high-frequency profiling by adding the ability
for an event to "pause" or "resume" AUX area tracing (Adrian
Hunter)
VM profiling/sampling:
- Correct perf sampling with guest VMs (Colton Lewis)
New hardware support:
- x86/intel: Add PMU support for Intel ArrowLake-H CPUs (Dapeng Mi)
Misc fixes and enhancements:
- x86/intel/pt: Fix buffer full but size is 0 case (Adrian Hunter)
- x86/amd: Warn only on new bits set (Breno Leitao)
- x86/amd/uncore: Avoid a false positive warning about snprintf
truncation in amd_uncore_umc_ctx_init (Jean Delvare)
- uprobes: Re-order struct uprobe_task to save some space
(Christophe JAILLET)
- x86/rapl: Move the pmu allocation out of CPU hotplug (Kan Liang)
- x86/rapl: Clean up cpumask and hotplug (Kan Liang)
- uprobes: Deuglify xol_get_insn_slot/xol_free_insn_slot paths (Oleg
Nesterov)"
* tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
perf/core: Correct perf sampling with guest VMs
perf/x86: Refactor misc flag assignments
perf/powerpc: Use perf_arch_instruction_pointer()
perf/core: Hoist perf_instruction_pointer() and perf_misc_flags()
perf/arm: Drop unused functions
uprobes: Re-order struct uprobe_task to save some space
perf/x86/amd/uncore: Avoid a false positive warning about snprintf truncation in amd_uncore_umc_ctx_init
perf/x86/intel: Do not enable large PEBS for events with aux actions or aux sampling
perf/x86/intel/pt: Add support for pause / resume
perf/core: Add aux_pause, aux_resume, aux_start_paused
perf/x86/intel/pt: Fix buffer full but size is 0 case
uprobes: SRCU-protect uretprobe lifetime (with timeout)
uprobes: allow put_uprobe() from non-sleepable softirq context
perf/x86/rapl: Clean up cpumask and hotplug
perf/x86/rapl: Move the pmu allocation out of CPU hotplug
uprobe: Add support for session consumer
uprobe: Add data pointer to consumer handlers
perf/x86/amd: Warn only on new bits set
uprobes: fold xol_take_insn_slot() into xol_get_insn_slot()
uprobes: kill xol_area->slot_count
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Detect non-relocated text references for more robust
IBT sealing (Josh Poimboeuf)
- Fix build error when building stripped down
UAPI headers (HONG Yifan)
- Exclude __tracepoints data from ENDBR checks to fix
false positives on clang builds (Peter Zijlstra)
- Fix ORC unwind for newly forked tasks (Zheng Yejian)
- Fix readelf related faddr2line regression (Carlos Llamas)
* tag 'objtool-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Exclude __tracepoints data from ENDBR checks
Revert "scripts/faddr2line: Check only two symbols when calculating symbol size"
x86/unwind/orc: Fix unwind for newly forked tasks
objtool: Also include tools/include/uapi
objtool: Detect non-relocated text references
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Lockdep:
- Enable PROVE_RAW_LOCK_NESTING with PROVE_LOCKING (Sebastian Andrzej
Siewior)
- Add lockdep_cleanup_dead_cpu() (David Woodhouse)
futexes:
- Use atomic64_inc_return() in get_inode_sequence_number() (Uros
Bizjak)
- Use atomic64_try_cmpxchg_relaxed() in get_inode_sequence_number()
(Uros Bizjak)
RT locking:
- Add sparse annotation PREEMPT_RT's locking (Sebastian Andrzej
Siewior)
spinlocks:
- Use atomic_try_cmpxchg_release() in osq_unlock() (Uros Bizjak)
atomics:
- x86: Use ALT_OUTPUT_SP() for __alternative_atomic64() (Uros Bizjak)
- x86: Use ALT_OUTPUT_SP() for __arch_{,try_}cmpxchg64_emu() (Uros
Bizjak)
KCSAN, seqlocks:
- Support seqcount_latch_t (Marco Elver)
<linux/cleanup.h>:
- Add if_not_guard() conditional guard helper (David Lechner)
- Adjust scoped_guard() macros to avoid potential warning (Przemek
Kitszel)
- Remove address space of returned pointer (Uros Bizjak)
WW mutexes:
- locking/ww_mutex: Adjust to lockdep nest_lock requirements (Thomas
Hellström)
Rust integration:
- Fix raw_spin_lock initialization on PREEMPT_RT (Eder Zulian)
Misc cleanups & fixes:
- lockdep: Fix wait-type check related warnings (Ahmed Ehab)
- lockdep: Use info level for initial info messages (Jiri Slaby)
- spinlocks: Make __raw_* lock ops static (Geert Uytterhoeven)
- pvqspinlock: Convert fields of 'enum vcpu_state' to uppercase
(Qiuxu Zhuo)
- iio: magnetometer: Fix if () scoped_guard() formatting (Stephen
Rothwell)
- rtmutex: Fix misleading comment (Peter Zijlstra)
- percpu-rw-semaphores: Fix grammar in percpu-rw-semaphore.rst (Xiu
Jianfeng)"
* tag 'locking-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
locking/Documentation: Fix grammar in percpu-rw-semaphore.rst
iio: magnetometer: fix if () scoped_guard() formatting
rust: helpers: Avoid raw_spin_lock initialization for PREEMPT_RT
kcsan, seqlock: Fix incorrect assumption in read_seqbegin()
seqlock, treewide: Switch to non-raw seqcount_latch interface
kcsan, seqlock: Support seqcount_latch_t
time/sched_clock: Broaden sched_clock()'s instrumentation coverage
time/sched_clock: Swap update_clock_read_data() latch writes
locking/atomic/x86: Use ALT_OUTPUT_SP() for __arch_{,try_}cmpxchg64_emu()
locking/atomic/x86: Use ALT_OUTPUT_SP() for __alternative_atomic64()
cleanup: Add conditional guard helper
cleanup: Adjust scoped_guard() macros to avoid potential warning
locking/osq_lock: Use atomic_try_cmpxchg_release() in osq_unlock()
cleanup: Remove address space of returned pointer
locking/rtmutex: Fix misleading comment
locking/rt: Annotate unlock followed by lock for sparse.
locking/rt: Add sparse annotation for RCU.
locking/rt: Remove one __cond_lock() in RT's spin_trylock_irqsave()
locking/rt: Add sparse annotation PREEMPT_RT's sleeping locks.
locking/pvqspinlock: Convert fields of 'enum vcpu_state' to uppercase
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpuid updates from Borislav Petkov:
- Add a feature flag which denotes AMD CPUs supporting workload
classification with the purpose of using such hints when making
scheduling decisions
- Determine the boost enumerator for each AMD core based on its type:
efficiency or performance, in the cppc driver
- Add the type of a CPU to the topology CPU descriptor with the goal of
supporting and making decisions based on the type of the respective
core
- Add a feature flag to denote AMD cores which have heterogeneous
topology and enable SD_ASYM_PACKING for those
- Check microcode revisions before disabling PCID on Intel
- Cleanups and fixlets
* tag 'x86_cpu_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu: Remove redundant CONFIG_NUMA guard around numa_add_cpu()
x86/cpu: Fix FAM5_QUARK_X1000 to use X86_MATCH_VFM()
x86/cpu: Fix formatting of cpuid_bits[] in scattered.c
x86/cpufeatures: Add X86_FEATURE_AMD_WORKLOAD_CLASS feature bit
x86/amd: Use heterogeneous core topology for identifying boost numerator
x86/cpu: Add CPU type to struct cpuinfo_topology
x86/cpu: Enable SD_ASYM_PACKING for PKG domain on AMD
x86/cpufeatures: Add X86_FEATURE_AMD_HETEROGENEOUS_CORES
x86/cpufeatures: Rename X86_FEATURE_FAST_CPPC to have AMD prefix
x86/mm: Don't disable PCID when INVLPG has been fixed by microcode
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV updates from Borislav Petkov:
- Do the proper memory conversion of guest memory in order to be able
to kexec kernels in SNP guests along with other adjustments and
cleanups to that effect
- Start converting and moving functionality from the sev-guest driver
into core code with the purpose of supporting the secure TSC SNP
feature where the hypervisor cannot influence the TSC exposed to the
guest anymore
- Add a "nosnp" cmdline option in order to be able to disable SNP
support in the hypervisor and thus free-up resources which are not
going to be used
- Cleanups
[ Reminding myself about the endless TLA's again: SEV is the AMD Secure
Encrypted Virtualization - Linus ]
* tag 'x86_sev_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Cleanup vc_handle_msr()
x86/sev: Convert shared memory back to private on kexec
x86/mm: Refactor __set_clr_pte_enc()
x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP
virt: sev-guest: Carve out SNP message context structure
virt: sev-guest: Reduce the scope of SNP command mutex
virt: sev-guest: Consolidate SNP guest messaging parameters to a struct
x86/sev: Cache the secrets page address
x86/sev: Handle failures from snp_init()
virt: sev-guest: Use AES GCM crypto library
x86/virt: Provide "nosnp" boot option for sev kernel command line
x86/virt: Move SEV-specific parsing into arch/x86/virt/svm
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform cleanup from Borislav Petkov:
- Replace deprecated PCI functions used in intel-mid
* tag 'x86_platform_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/intel-mid: Replace deprecated PCI functions
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode loader update from Borislav Petkov:
- Remove the unconditional cache writeback and invalidation after
loading the microcode patch on Intel as this was addressing a
microcode bug for which there is a concrete microcode revision check
instead
* tag 'x86_microcode_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode/intel: Remove unnecessary cache writeback and invalidation
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cache resource control updates from Borislav Petkov:
- Add support for 6-node sub-NUMA clustering on Intel
- Cleanup
* tag 'x86_cache_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/resctrl: Support Sub-NUMA cluster mode SNC6
x86/resctrl: Slightly clean-up mbm_config_show()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:
- Log and handle twp new AMD-specific MCA registers: SYND1 and SYND2
and report the Field Replaceable Unit text info reported through them
- Add support for handling variable-sized SMCA BERT records
- Add the capability for reporting vendor-specific RAS error info
without adding vendor-specific fields to struct mce
- Cleanups
* tag 'ras_core_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
EDAC/mce_amd: Add support for FRU text in MCA
x86/mce/apei: Handle variable SMCA BERT record size
x86/MCE/AMD: Add support for new MCA_SYND{1,2} registers
tracing: Add __print_dynamic_array() helper
x86/mce: Add wrapper for struct mce to export vendor specific info
x86/mce/intel: Use MCG_BANKCNT_MASK instead of 0xff
x86/mce/mcelog: Use xchg() to get and clear the flags
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git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- Add support for Bluefield-2 SOCs to bluefield_edac
- Add support for Intel Panther Lake-H to igen6_edac
- Add polling support to igen6_edac as some Intel M100 chips have
trouble with error interrupts
- Add Kaby Lake-S support to ie31200_edac
- Fix memory source detection in the SKX common module which is used by
a couple of Intel EDAC drivers
- Add support for the NXP i.MX9 memory controller to fsl_edac
- The usual fixes and cleanups all over the place
* tag 'edac_updates_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/igen6: Add polling support
EDAC/igen6: Initialize edac_op_state according to the configuration data
EDAC/igen6: Avoid segmentation fault on module unload
EDAC/ie31200: Add Kaby Lake-S dual-core host bridge ID
MAINTAINERS: Change FSL DDR EDAC maintainership
EDAC/{skx_common,i10nm}: Fix incorrect far-memory error source indicator
EDAC/skx_common: Differentiate memory error sources
EDAC/fsl_ddr: Add support for i.MX9 DDR controller
dt-bindings: memory: fsl: Add compatible string nxp,imx9-memory-controller
EDAC/fsl_ddr: Fix bad bit shift operations
EDAC/fsl_ddr: Move global variables into struct fsl_mc_pdata
EDAC/fsl_ddr: Pass down fsl_mc_pdata in ddr_in32() and ddr_out32()
RAS/AMD/ATL: Add debug prints for DF register reads
EDAC/bluefield: Use Arm SMC for EMI access on BlueField-2
EDAC/bluefield: Fix potential integer overflow
EDAC/igen6: Add Intel Panther Lake-H SoCs support
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git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux
Pull Kernel Concurrency Sanitizer (KCSAN) updates from Marco Elver:
- Make KCSAN compatible with PREEMPT_RT
- Minor cleanup
* tag 'kcsan-20241112-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux:
kcsan: Remove redundant call of kallsyms_lookup_name()
kcsan: Turn report_filterlist_lock into a raw_spinlock
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git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Frederic Weisbecker:
"SRCU:
- Introduction of the new SRCU-lite flavour with a new pair of
srcu_read_[un]lock_lite() APIs. In practice the read side using
this flavour becomes lighter by removing a full memory barrier on
LOCK and a full memory barrier on UNLOCK. This comes at the expense
of a higher latency write side with two (in the best case of a
snaphot of unused read-sides) or more RCU grace periods on the
update side which now assumes by itself the whole full ordering
guarantee against the LOCK/UNLOCK counters on both indexes, along
with the accesses performed inside.
Uretprobes is a known potential user.
Note this doesn't replace the default normal flavour of SRCU which
still behaves the same as usual.
- Add testing of SRCU-lite through rcutorture and rcuscale
- Various cleanups on the way.
Fixes:
- Allow short-circuiting RCU-TASKS-RUDE grace periods on
architectures that have sane noinstr boundaries forbidding tracing
on low-level idle and kernel entry code. RCU-TASKS is enough on
such configurations because it involves an RCU grace period that
waits for all idle tasks to either schedule out voluntarily or
enter into RCU unwatched noinstr code.
- Allow and test start_poll_synchronize_rcu() with IRQs disabled.
- Mention rcuog kthreads in relevant documentation and Kconfig help
- Various fixes and consolidations
rcutorture:
- Add --no-affinity on tools to leave the affinity setting of guests
up to the user.
- Add guest_os_delay parameter to rcuscale for better warm-up
control.
- Fix and improve some rcuscale error handling.
- Various cleanups and fixes
stall:
- Remove dead code
- Stop dumping tasks if a stalled grace period eventually ended
midway as that only produces confusing output.
- Optimize detection of stalling CPUs and avoid useless node locking
otherwise.
NOCB:
- Fix rcu_barrier() hang due to a race against callbacks
deoffloading. This is not yet used, except by rcutorture, and waits
for its promised cpusets interface.
- Remove leftover function declaration"
* tag 'rcu.release.v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (42 commits)
rcuscale: Remove redundant WARN_ON_ONCE() splat
rcuscale: Do a proper cleanup if kfree_scale_init() fails
srcu: Unconditionally record srcu_read_lock_lite() in ->srcu_reader_flavor
srcu: Check for srcu_read_lock_lite() across all CPUs
srcu: Remove smp_mb() from srcu_read_unlock_lite()
rcutorture: Avoid printing cpu=-1 for no-fault RCU boost failure
rcuscale: Add guest_os_delay module parameter
refscale: Correct affinity check
torture: Add --no-affinity parameter to kvm.sh
rcu/nocb: Fix missed RCU barrier on deoffloading
rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu
rcu/srcutiny: don't return before reenabling preemption
rcu-tasks: Remove open-coded one-byte cmpxchg() emulation
doc: Remove kernel-parameters.txt entry for rcutorture.read_exit
rcutorture: Test start-poll primitives with interrupts disabled
rcu: Permit start_poll_synchronize_rcu*() with interrupts disabled
rcu: Allow short-circuiting of synchronize_rcu_tasks_rude()
doc: Add rcuog kthreads to kernel-per-CPU-kthreads.rst
rcu: Add rcuog kthreads to RCU_NOCB_CPU help text
rcu: Use the BITS_PER_LONG macro
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hmon updates from Guenter Roeck:
"New drivers:
- ISL28022 power monitor
- Nuvoton NCT7363Y
Added support for new chips to existing drivers:
- The tmp180 driver now supports NXP p3t1085, including its I3C mode
- The ina2xx driver now supports SY24655 and INA260
- The amc6821 driver now supports tsd,mule
Other notable improvements:
- The sht4x driver now supports the chip heater
- The pmbus/isl68137 driver now supports a voltage divider on Vout
- The cros_ec driver registers with the thermal framework
- The pmbus/ltc2978 driver now supports LTC7841
- The PMBus core now allow drivers to override WRITE_PROTECT
Various other minor improvements and cleanups"
* tag 'hwmon-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (51 commits)
hwmon: (pmbus/isl68137) add support for voltage divider on Vout
dt-bindings: hwmon: isl68137: add bindings to support voltage dividers
hwmon: tmp108: fix I3C dependency
hwmon: (cros_ec) register thermal sensors to thermal framework
hwmon: (tmp108) Add support for I3C device
hwmon: (tmp108) Add helper function tmp108_common_probe() to prepare I3C support
hwmon: (acpi_power_meter) Fix fail to load module on platform without _PMD method
hwmon: (nct6775-core) Fix overflows seen when writing limit attributes
hwmon: (pwm-fan) Introduce start from stopped state handling
dt-bindings: hwmon: pwm-fan: Document start from stopped state properties
hwmon: (tmp108) Add NXP p3t1085 support
dt-bindings: hwmon: ti,tmp108: Add nxp,p3t1085 compatible string
hwmon: (sch5627, max31827) Fix typos in driver documentation
hwmon: (jc42) Drop of_match_ptr() protection
hwmon: (f71882fg) Fix grammar in fan speed trip points explanation
dt-bindings: hwmon: pmbus: add ti tps25990 support
hwmon: (pmbus/core) clear faults after setting smbalert mask
hwmon: (pmbus/core) allow drivers to override WRITE_PROTECT
hwmon: (pmbus) add documentation for existing flags
hwmon: (ina226) Add support for SY24655
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These include a couple of fixes, a new ACPI backlight quirk for Apple
MacbookPro11,2 and Air7,2 and a bunch of cleanups:
- Fix _CPC register setting issue for registers located in memory in
the ACPI CPPC library code (Lifeng Zheng)
- Use DEFINE_SIMPLE_DEV_PM_OPS in the ACPI battery driver, make it
use devm_ for initializing mutexes and allocating driver data, and
make it check the register_pm_notifier() return value (Thomas
Weißschuh, Andy Shevchenko)
- Make the ACPI EC driver support compile-time conditional and allow
ACPI to be built without CONFIG_HAS_IOPORT (Arnd Bergmann)
- Remove a redundant error check from the pfr_telemetry driver (Colin
Ian King)
- Rearrange the processor_perflib code in the ACPI processor driver
to avoid compiling x86-specific code on other architectures (Arnd
Bergmann)
- Add adev NULL check to acpi_quirk_skip_serdev_enumeration() and
make UART skip quirks work on PCI UARTs without an UID (Hans de
Goede)
- Force native backlight handling Apple MacbookPro11,2 and Air7,2 in
the ACPI video driver (Jonathan Denose)
- Switch several ACPI platform drivers back to using struct
platform_driver::remove() (Uwe Kleine-König)
- Replace strcpy() with strscpy() in multiple places in the ACPI
subsystem (Muhammad Qasim Abdul Majeed, Abdul Rahim)"
* tag 'acpi-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits)
ACPI: video: force native for Apple MacbookPro11,2 and Air7,2
ACPI: CPPC: Fix _CPC register setting issue
ACPI: Switch back to struct platform_driver::remove()
ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration()
ACPI: x86: Make UART skip quirks work on PCI UARTs without an UID
ACPI: allow building without CONFIG_HAS_IOPORT
ACPI: processor_perflib: extend X86 dependency
ACPI: scan: Use strscpy() instead of strcpy()
ACPI: SBSHC: Use strscpy() instead of strcpy()
ACPI: SBS: Use strscpy() instead of strcpy()
ACPI: power: Use strscpy() instead of strcpy()
ACPI: pci_root: Use strscpy() instead of strcpy()
ACPI: pci_link: Use strscpy() instead of strcpy()
ACPI: event: Use strscpy() instead of strcpy()
ACPI: EC: Use strscpy() instead of strcpy()
ACPI: APD: Use strscpy() instead of strcpy()
ACPI: thermal: Use strscpy() instead of strcpy()
ACPI: battery: Check for error code from devm_mutex_init() call
ACPI: EC: make EC support compile-time conditional
ACPI: pfr_telemetry: remove redundant error check on ret
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These are thermal core changes, including the addition of support for
temperature thresholds that can be set from user space, fixes related
to thermal zone initialization, suspend/resume and exit, locking
rework and rearrangement of the code handling thermal zone temperature
updates.
Specifics:
- Add support for thermal thresholds that can be added and removed
from user space via netlink along with a related library update
(Daniel Lezcano)
- Fix thermal zone initialization, suspend/resume and exit
synchronization issues (Rafael Wysocki)
- Rearrange locking in the thermal core to use guards (Rafael
Wysocki)
- Make the code handling thermal zone temperature updates use sorted
lists of trip points to reduce the number of trip points table
walks in the thermal core (Rafael Wysocki)
- Fix and clean up the thermal testing facility code (Rafael Wysocki)
- Fix a Power Allocator thermal governor issue (ZhengShaobo)"
* tag 'thermal-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (45 commits)
thermal: testing: Initialize some variables annoteded with _free()
thermal: testing: Use DEFINE_FREE() and __free() to simplify code
thermal: testing: Simplify tt_get_tt_zone()
thermal: gov_power_allocator: Granted power set to max when nobody request power
thermal: core: Relocate thermal zone initialization routine
thermal: core: Use trip lists for trip crossing detection
thermal: core: Eliminate thermal_zone_trip_down()
thermal: core: Relocate functions that update trip points
thermal: core: Move some trip processing to thermal_trip_crossed()
thermal: core: Pass trip descriptor to thermal_trip_crossed()
thermal: core: Rearrange __thermal_zone_device_update()
thermal: core: Prepare for moving trips between sorted lists
thermal: core: Rename trip list node in struct thermal_trip_desc
thermal: core: Build sorted lists instead of sorting them later
thermal/lib: Fix memory leak on error in thermal_genl_auto()
thermal: thresholds: Fix thermal lock annotation issue
tools/thermal/thermal-engine: Take into account the thresholds API
tools/lib/thermal: Add the threshold netlink ABI
tools/lib/thermal: Make more generic the command encoding function
thermal: netlink: Add the commands and the events for the thresholds
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"The amd-pstate cpufreq driver gets the majority of changes this time.
They are mostly fixes and cleanups, but one of them causes it to
become the default cpufreq driver on some AMD server platforms.
Apart from that, the menu cpuidle governor is modified to not use
iowait any more, the intel_idle gets a custom C-states table for
Granite Rapids Xeon D, and the intel_pstate driver will use a more
aggressive Balance- performance default EPP value on Granite Rapids
now.
There are also some fixes, cleanups and tooling updates.
Specifics:
- Update the amd-pstate driver to set the initial scaling frequency
policy lower bound to be the lowest non-linear frequency (Dhananjay
Ugwekar)
- Enable amd-pstate by default on servers starting with newer AMD
Epyc processors (Swapnil Sapkal)
- Align more codepaths between shared memory and MSR designs in
amd-pstate (Dhananjay Ugwekar)
- Clean up amd-pstate code to rename functions and remove redundant
calls (Dhananjay Ugwekar, Mario Limonciello)
- Do other assorted fixes and cleanups in amd-pstate (Dhananjay
Ugwekar and Mario Limonciello)
- Change the Balance-performance EPP value for Granite Rapids in the
intel_pstate driver to a more performance-biased one (Srinivas
Pandruvada)
- Simplify MSR read on the boot CPU in the ACPI cpufreq driver (Chang
S. Bae)
- Ensure sugov_eas_rebuild_sd() is always called when sugov_init()
succeeds to always enforce sched domains rebuild in case EAS needs
to be enabled (Christian Loehle)
- Switch cpufreq back to platform_driver::remove() (Uwe Kleine-König)
- Use proper frequency unit names in cpufreq (Marcin Juszkiewicz)
- Add a built-in idle states table for Granite Rapids Xeon D to the
intel_idle driver (Artem Bityutskiy)
- Fix some typos in comments in the cpuidle core and drivers (Shen
Lichuan)
- Remove iowait influence from the menu cpuidle governor (Christian
Loehle)
- Add min/max available performance state limits to the Energy Model
management code (Lukasz Luba)
- Update pm-graph to v5.13 (Todd Brandt)
- Add documentation for some recently introduced cpupower utility
options (Tor Vic)
- Make cpupower inform users where cpufreq-bench.conf should be
located when opening it fails (Peng Fan)
- Allow overriding cross-compiling env params in cpupower (Peng Fan)
- Add compile_commands.json to .gitignore in cpupower (John B. Wyatt
IV)
- Improve disable c_state block in cpupower bindings and add a test
to confirm that CPU state is disabled to it (John B. Wyatt IV)
- Add Chinese Simplified translation to cpupower (Kieran Moy)
- Add checks for xgettext and msgfmt to cpupower (Siddharth Menon)"
* tag 'pm-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (38 commits)
cpufreq: intel_pstate: Update Balance-performance EPP for Granite Rapids
cpufreq: ACPI: Simplify MSR read on the boot CPU
sched/cpufreq: Ensure sd is rebuilt for EAS check
intel_idle: add Granite Rapids Xeon D support
PM: EM: Add min/max available performance state limits
cpufreq/amd-pstate: Move registration after static function call update
cpufreq/amd-pstate: Push adjust_perf vfunc init into cpu_init
cpufreq/amd-pstate: Align offline flow of shared memory and MSR based systems
cpufreq/amd-pstate: Call cppc_set_epp_perf in the reenable function
cpufreq/amd-pstate: Do not attempt to clear MSR_AMD_CPPC_ENABLE
cpufreq/amd-pstate: Rename functions that enable CPPC
cpufreq/amd-pstate-ut: Add fix for min freq unit test
amd-pstate: Switch to amd-pstate by default on some Server platforms
amd-pstate: Set min_perf to nominal_perf for active mode performance gov
cpufreq/amd-pstate: Remove the redundant amd_pstate_set_driver() call
cpufreq/amd-pstate: Remove the switch case in amd_pstate_init()
cpufreq/amd-pstate: Call amd_pstate_set_driver() in amd_pstate_register_driver()
cpufreq/amd-pstate: Call amd_pstate_register() in amd_pstate_init()
cpufreq/amd-pstate: Set the initial min_freq to lowest_nonlinear_freq
cpufreq/amd-pstate: Remove the redundant verify() function
...
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git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator updates from Jason Donenfeld:
"This contains a single series from Uros to replace uses of
<linux/random.h> with prandom.h or other more specific headers
as needed, in order to avoid a circular header issue.
Uros' goal is to be able to use percpu.h from prandom.h, which
will then allow him to define __percpu in percpu.h rather than
in compiler_types.h"
* tag 'random-6.13-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
prandom: Include <linux/percpu.h> in <linux/prandom.h>
random: Do not include <linux/prandom.h> in <linux/random.h>
netem: Include <linux/prandom.h> in sch_netem.c
lib/test_scanf: Include <linux/prandom.h> instead of <linux/random.h>
lib/test_parman: Include <linux/prandom.h> instead of <linux/random.h>
bpf/tests: Include <linux/prandom.h> instead of <linux/random.h>
lib/rbtree-test: Include <linux/prandom.h> instead of <linux/random.h>
random32: Include <linux/prandom.h> instead of <linux/random.h>
kunit: string-stream-test: Include <linux/prandom.h>
lib/interval_tree_test.c: Include <linux/prandom.h> instead of <linux/random.h>
bpf: Include <linux/prandom.h> instead of <linux/random.h>
scsi: libfcoe: Include <linux/prandom.h> instead of <linux/random.h>
fscrypt: Include <linux/once.h> in fs/crypto/keyring.c
mtd: tests: Include <linux/prandom.h> instead of <linux/random.h>
media: vivid: Include <linux/prandom.h> in vivid-vid-cap.c
drm/lib: Include <linux/prandom.h> instead of <linux/random.h>
drm/i915/selftests: Include <linux/prandom.h> instead of <linux/random.h>
crypto: testmgr: Include <linux/prandom.h> instead of <linux/random.h>
x86/kaslr: Include <linux/prandom.h> instead of <linux/random.h>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Add sig driver API
- Remove signing/verification from akcipher API
- Move crypto_simd_disabled_for_test to lib/crypto
- Add WARN_ON for return values from driver that indicates memory
corruption
Algorithms:
- Provide crc32-arch and crc32c-arch through Crypto API
- Optimise crc32c code size on x86
- Optimise crct10dif on arm/arm64
- Optimise p10-aes-gcm on powerpc
- Optimise aegis128 on x86
- Output full sample from test interface in jitter RNG
- Retry without padata when it fails in pcrypt
Drivers:
- Add support for Airoha EN7581 TRNG
- Add support for STM32MP25x platforms in stm32
- Enable iproc-r200 RNG driver on BCMBCA
- Add Broadcom BCM74110 RNG driver"
* tag 'v6.13-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (112 commits)
crypto: marvell/cesa - fix uninit value for struct mv_cesa_op_ctx
crypto: cavium - Fix an error handling path in cpt_ucode_load_fw()
crypto: aesni - Move back to module_init
crypto: lib/mpi - Export mpi_set_bit
crypto: aes-gcm-p10 - Use the correct bit to test for P10
hwrng: amd - remove reference to removed PPC_MAPLE config
crypto: arm/crct10dif - Implement plain NEON variant
crypto: arm/crct10dif - Macroify PMULL asm code
crypto: arm/crct10dif - Use existing mov_l macro instead of __adrl
crypto: arm64/crct10dif - Remove remaining 64x64 PMULL fallback code
crypto: arm64/crct10dif - Use faster 16x64 bit polynomial multiply
crypto: arm64/crct10dif - Remove obsolete chunking logic
crypto: bcm - add error check in the ahash_hmac_init function
crypto: caam - add error check to caam_rsa_set_priv_key_form
hwrng: bcm74110 - Add Broadcom BCM74110 RNG driver
dt-bindings: rng: add binding for BCM74110 RNG
padata: Clean up in padata_do_multithreaded()
crypto: inside-secure - Fix the return value of safexcel_xcbcmac_cra_init()
crypto: qat - Fix missing destroy_workqueue in adf_init_aer()
crypto: rsassa-pkcs1 - Reinstate support for legacy protocols
...
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform firmware updates from Tzung-Bi Shih:
- Do not double register "simple-framebuffer" platform device if
Generic System Framebuffers (sysfb) already did that
- Fix a missing of unregistering platform driver in error handling path
* tag 'chrome-platform-firmware-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
firmware: google: Unregister driver_info on failure
firmware: coreboot: Don't register a pdev if screen_info data is present
firmware: sysfb: Add a sysfb_handles_screen_info() helper function
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Tzung-Bi Shih:
"Fixes:
- Fix a leak of fwnode refcount.
Cleanups:
- Drop unused I2C driver data
- Move back from platform_driver::remove_new() to
platform_driver::remove()"
* tag 'chrome-platform-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: Switch back to struct platform_driver::remove()
platform/chrome: cros_ec_typec: fix missing fwnode reference decrement
platform/chrome: Drop explicit initialization of struct i2c_device_id::driver_data to 0
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull CSD-lock update from Paul McKenney:
"This switches from sched_clock() to ktime_get_mono_fast_ns(), which on
x86 switches from the rdtsc instruction to the rdtscp instruction,
thus avoiding instruction reorderings that cause false-positive
reports of CSD-lock stalls of almost 2^46 nanoseconds. These false
positives are rare, but really are seen in the wild"
* tag 'csd-lock.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
locking/csd-lock: Switch from sched_clock() to ktime_get_mono_fast_ns()
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull scftorture updates from Paul McKenney:
- Avoid divide operation
- Fix cleanup code waiting for IPI handlers
- Move memory allocations out of preempt-disable region of code for
PREEMPT_RT compatibility
- Use a lockless list to avoid freeing memory while interrupts are
disabled, again for PREEMPT_RT compatibility
- Make lockless list scf_add_to_free_list() correctly handle freeing a
NULL pointer
* tag 'scftorture.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
scftorture: Handle NULL argument passed to scf_add_to_free_list().
scftorture: Use a lock-less list to free memory.
scftorture: Move memory allocation outside of preempt_disable region.
scftorture: Wait until scf_cleanup_handler() completes.
scftorture: Avoid additional div operation.
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull nolibc updates from Paul McKenney:
- Fix potential error due to missing #include on s390
- Compatibility with -Wmissing-fallthrough
- Run qemu with more memory during tests
* tag 'nolibc.2024.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
selftests/nolibc: start qemu with 1 GiB of memory
tools/nolibc: compiler: add macro __nolibc_fallthrough
tools/nolibc: s390: include std.h
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Remove "bus_num" property which is both unused in the kernel and
undocumented. Most likely they are leftovers from downstream.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241115195049.3637454-2-robh@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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property
Remove "pl022,slave-tx-disable" property which is both unused in the kernel
and undocumented. Most likely they are leftovers from downstream.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20241115193835.3623725-1-robh@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Remove "amd,zlib-support" property which is both unused in the kernel and
undocumented. Most likely they are leftovers from downstream.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241115193740.3622591-2-robh@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into soc/dt
Allwinner fixes for 6.12
- Fix DCDC5 voltage range on Cubieboard 4
* tag 'sunxi-fixes-for-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
ARM: dts: cubieboard4: Fix DCDC5 regulator constraints
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Merge in late fixes to prepare for the 6.13 net-next PR.
Conflicts:
include/linux/phy.h
41ffcd95015f net: phy: fix phylib's dual eee_enabled
721aa69e708b net: phy: convert eee_broken_modes to a linkmode bitmap
https://lore.kernel.org/all/20241118135512.1039208b@canb.auug.org.au/
drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c
2160428bcb20 net: txgbe: fix null pointer to pcs
2160428bcb20 net: txgbe: remove GPIO interrupt controller
Adjacent commits:
include/linux/phy.h
41ffcd95015f net: phy: fix phylib's dual eee_enabled
516a5f11eb97 net: phy: respect cached advertising when re-enabling EEE
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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page_frag test module is an out of tree module, but built
using KDIR as the main kernel tree, the mm test suite is
just getting skipped if newly added page_frag test module
fails to compile due to kernel not yet compiled.
Fix the above problem by ensuring both kernel is built first
and a newer kernel which has page_frag_cache.h is used.
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Alexander Duyck <alexanderduyck@fb.com>
CC: Linux-MM <linux-mm@kvack.org>
Fixes: 7fef0dec415c ("mm: page_frag: add a test module for page_frag")
Fixes: 65941f10caf2 ("mm: move the page fragment allocator from page_alloc into its own file")
Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Tested-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20241119033012.257525-1-linyunsheng@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The hyphen is removed to have the same style as the others.
Fixes: 09ef17863f37 ("Documentation: add more details in tipc.rst")
Signed-off-by: tuqiang <tu.qiang35@zte.com.cn>
Signed-off-by: Jiang Kun <jiang.kun2@zte.com.cn>
Reviewed-by: Simon Horman <horms@kernel.org>
Cc: xu xin <xu.xin16@zte.com.cn>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jon Maloy <jmaloy@redhat.com>
Cc: Xin Long <lucien.xin@gmail.com>
Link: https://patch.msgid.link/20241115104731435HuFjZOmkaqumuFhB7mrwe@zte.com.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Mohan Prasad says:
====================
selftests: Add selftest for link layer and performance testing
The series of patches are for doing basic tests
of NIC driver. Test comprises checks for auto-negotiation,
speed, duplex state and throughput between local NIC and
partner. Tools such as ethtool, iperf3 are used.
Signed-off-by: Mohan Prasad J <mohan.prasad@microchip.com>
====================
Link: https://patch.msgid.link/20241114192545.1742514-1-mohan.prasad@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add selftest case to check the send and receive throughput.
Supported link modes between local NIC driver and partner
are varied. Then send and receive throughput is captured
and verified. Test uses iperf3 tool.
Add iperf3 server/client function in GenerateTraffic class.
Signed-off-by: Mohan Prasad J <mohan.prasad@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add selftest case for testing the speed and duplex state of
local NIC driver and the partner based on the supported
link modes obtained from the ethtool. Speed and duplex states
are varied and verified using ethtool.
Signed-off-by: Mohan Prasad J <mohan.prasad@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add selftest file for the link layer tests of a NIC driver.
Test for auto-negotiation is added.
Add LinkConfig class for changing link layer configs.
Selftest makes use of ksft modules and ethtool.
Include selftest file in the Makefile.
Signed-off-by: Mohan Prasad J <mohan.prasad@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Michael Chan says:
====================
bnxt_en: Add context memory dump to coredump
The driver currently supports Live FW dump and crashed FW dump. On
the newer chips, the driver allocates host backing store context
memory for the chip and FW to store various states. The content of
this context memory will be useful for debugging. This patchset
adds the context memory contents to the ethtool -w coredump using
a new dump flag.
The first patch is the FW interface update, followed by some
refactoring of the context memory logic. Next, we add support for
some new context memory types that contain various FW debug logs.
After that, we add a new dump flag and the code to dump all the
available context memory during ethtool -w coredump.
v1: https://lore.kernel.org/20241113053649.405407-1-michael.chan@broadcom.com
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Link: https://patch.msgid.link/20241115151438.550106-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The FW trace coredump segments are very similar to the context
memory segments in the previous patch. The main difference is
to call HWRM_DBG_LOG_BUFFER_FLUSH to flush the FW data to host
memory and to include an additional record in the coredump that
contains the head and tail information of the trace data.
Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241115151438.550106-12-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a new ethtool -W dump flag (2) to include driver coredump segments.
This patch adds the host backing store context memory pages used by the
chip and FW to store various states to the coredump. The pages for
each context memory type is dumped into a separate coredump segment.
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Selvin Thyparampil Xavier <selvin.xavier@broadcom.com>
Reviewed-by: Shruti Parab <shruti.parab@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Reviewed-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241115151438.550106-11-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pass the component ID and segment ID to this function to create
the coredump segment header. This will be needed in the next
patches to create more segments for the coredump.
Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241115151438.550106-10-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Host context memory is used by the newer chips to store context
information for various L2 and RoCE states and FW logs. This
information will be useful for debugging. This patch adds the
functions to copy all pages of a context memory type to a contiguous
buffer. The next patches will include the context memory dump
during ethtool -w coredump.
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Co-developed-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241115151438.550106-9-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If FW supports appending new FW logs to an offset in the context
memory after FW reset, then do not free this type of context memory
during reset. The driver will provide the initial offset to the FW
when configuring this type of context memory. This way, we don't lose
the older FW logs after reset.
Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241115151438.550106-8-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The FW trace memory pages will be added to the ethtool -w coredump
in later patches. In addition to the raw data, the driver has to
add a header to provide the head and tail information on each FW
trace log segment when creating the coredump. The FW sends an async
message to the driver after DMAing a chunk of logs to the context
memory to indicate the last offset containing the tail of the logs.
The driver needs to keep track of that.
Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241115151438.550106-7-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Allocate the new FW trace log backing store context memory types
if they are supported by the FW. FW debug logs are DMA'ed to the host
backing store memory when the on-chip buffers are full. If host
memory cannot be allocated for these memory types, the driver
will not abort.
Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241115151438.550106-6-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If 'force' is false, it will keep the memory pages and all data
structures for the context memory type if the memory is valid.
This patch always passes true for the 'force' parameter so there is
no change in behavior. Later patches will adjust the 'force' parameter
for the FW log context memory types so that the logs will not be reset
after FW reset.
Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241115151438.550106-5-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a new function bnxt_free_one_ctx_mem() to free one context
memory type. bnxt_free_ctx_mem() now calls the new function in
the loop to free each context memory type. There is no change in
behavior. Later patches will further make use of the new function.
Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241115151438.550106-4-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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