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Message-ID: <aDLjswBHxzKz1gx2@gmail.com>
Date: Sun, 25 May 2025 11:32:35 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Jiri Olsa <jolsa@...nel.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Mark Rutland <mark.rutland@....com>,
Namhyung Kim <namhyung@...nel.org>,
linux-perf-users@...r.kernel.org
Subject: [GIT PULL] Performance events updates for v6.16
Linus,
Please pull the latest perf/core Git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-core-2025-05-25
# HEAD: e7d952cc39fca34386ec9f15f68cb2eaac01b5ae perf/headers: Clean up <linux/perf_event.h> a bit
Performance events updates for v6.16:
Core & generic-arch updates:
- Add support for dynamic constraints and propagate it to
the Intel driver (Kan Liang)
- Fix & enhance driver-specific throttling support (Kan Liang)
- Record sample last_period before updating on the
x86 and PowerPC platforms (Mark Barnett)
- Make perf_pmu_unregister() usable (Peter Zijlstra)
- Unify perf_event_free_task() / perf_event_exit_task_context()
(Peter Zijlstra)
- Simplify perf_event_release_kernel() and perf_event_free_task()
(Peter Zijlstra)
- Allocate non-contiguous AUX pages by default (Yabin Cui)
Uprobes updates:
- Add support to emulate NOP instructions (Jiri Olsa)
- selftests/bpf: Add 5-byte NOP uprobe trigger benchmark (Jiri Olsa)
x86 Intel PMU enhancements:
- Support Intel Auto Counter Reload [ACR] (Kan Liang)
- Add PMU support for Clearwater Forest (Dapeng Mi)
- Arch-PEBS preparatory changes: (Dapeng Mi)
- Parse CPUID archPerfmonExt leaves for non-hybrid CPUs
- Decouple BTS initialization from PEBS initialization
- Introduce pairs of PEBS static calls
x86 AMD PMU enhancements:
- Use hrtimer for handling overflows in the AMD uncore driver
(Sandipan Das)
- Prevent UMC counters from saturating (Sandipan Das)
Fixes and cleanups:
- Fix put_ctx() ordering (Frederic Weisbecker)
- Fix irq work dereferencing garbage (Frederic Weisbecker)
- Misc fixes and cleanups (Changbin Du, Frederic Weisbecker,
Ian Rogers, Ingo Molnar, Kan Liang, Peter Zijlstra, Qing Wang,
Sandipan Das, Thorsten Blum)
Thanks,
Ingo
------------------>
Changbin Du (1):
perf/x86/intel/ds: Remove redundant assignments to sample.period
Dapeng Mi (5):
perf/x86/intel: Add PMU support for Clearwater Forest
perf/x86/intel: Parse CPUID archPerfmonExt leaves for non-hybrid CPUs
perf/x86/intel: Decouple BTS initialization from PEBS initialization
perf/x86/intel: Rename x86_pmu.pebs to x86_pmu.ds_pebs
perf/x86/intel: Introduce pairs of PEBS static calls
Frederic Weisbecker (5):
perf/core: Fix put_ctx() ordering
perf: Fix failing inherit_event() doing extra refcount decrement on parent
perf: Fix irq work dereferencing garbage
perf: Remove too early and redundant CPU hotplug handling
perf: Fix confusing aux iteration
Ian Rogers (1):
perf/uapi: Fix PERF_RECORD_SAMPLE comments in <uapi/linux/perf_event.h>
Ingo Molnar (2):
perf/uapi: Clean up <uapi/linux/perf_event.h> a bit
perf/headers: Clean up <linux/perf_event.h> a bit
Jiri Olsa (2):
uprobes/x86: Add support to emulate NOP instructions
selftests/bpf: Add 5-byte NOP uprobe trigger benchmark
Kan Liang (24):
perf/x86: Add dynamic constraint
perf/x86/intel: Track the num of events needs late setup
perf: Extend the bit width of the arch-specific flag
perf/x86/intel: Add CPUID enumeration for the auto counter reload
perf/x86/intel: Support auto counter reload
perf/x86/intel: Check the X86 leader for ACR group
perf/x86: Optimize the is_x86_event
perf/core: Add the is_event_in_freq_mode() helper to simplify the code
perf: Fix the throttle logic for a group
perf: Only dump the throttle log for the leader
perf/x86/intel: Remove driver-specific throttle support
perf/x86/amd: Remove driver-specific throttle support
perf/x86/zhaoxin: Remove driver-specific throttle support
powerpc/perf: Remove driver-specific throttle support
s390/perf: Remove driver-specific throttle support
perf/arm: Remove driver-specific throttle support
perf/apple_m1: Remove driver-specific throttle support
alpha/perf: Remove driver-specific throttle support
arc/perf: Remove driver-specific throttle support
csky/perf: Remove driver-specific throttle support
loongarch/perf: Remove driver-specific throttle support
sparc/perf: Remove driver-specific throttle support
xtensa/perf: Remove driver-specific throttle support
mips/perf: Remove driver-specific throttle support
Mark Barnett (1):
perf/arch: Record sample last_period before updating on the x86 and PowerPC platforms
Peter Zijlstra (10):
perf: Ensure bpf_perf_link path is properly serialized
perf: Simplify child event tear-down
perf: Simplify perf_event_free_task() wait
perf: Simplify perf_event_release_kernel()
perf: Unify perf_event_free_task() / perf_event_exit_task_context()
perf: Rename perf_event_exit_task(.child)
perf: Make perf_pmu_unregister() useable
perf/core: Fix perf-stat / read()
perf/core: Fix event->parent life-time issue
perf/core: Fix event timekeeping merge
Qing Wang (1):
perf/core: Fix broken throttling when max_samples_per_tick=1
Sandipan Das (5):
perf/x86/amd/uncore: Remove unused 'struct amd_uncore_ctx::node' member
perf/x86/intel/uncore: Use HRTIMER_MODE_HARD for detecting overflows
perf/x86/amd/uncore: Use hrtimer for handling overflows
perf/x86/amd/uncore: Add parameter to configure hrtimer
perf/x86/amd/uncore: Prevent UMC counters from saturating
Thorsten Blum (2):
perf/x86/intel/bts: Rename local bts_buffer variables for clarity
perf/x86/intel/bts: Replace offsetof() with struct_size()
Yabin Cui (1):
perf/aux: Allocate non-contiguous AUX pages by default
arch/alpha/kernel/perf_event.c | 11 +-
arch/arc/kernel/perf_event.c | 6 +-
arch/csky/kernel/perf_event.c | 3 +-
arch/loongarch/kernel/perf_event.c | 3 +-
arch/mips/kernel/perf_event_mipsxx.c | 3 +-
arch/powerpc/perf/core-book3s.c | 9 +-
arch/powerpc/perf/core-fsl-emb.c | 6 +-
arch/s390/kernel/perf_cpum_cf.c | 2 -
arch/s390/kernel/perf_cpum_sf.c | 5 +-
arch/sparc/kernel/perf_event.c | 3 +-
arch/x86/events/amd/core.c | 3 +-
arch/x86/events/amd/ibs.c | 4 +-
arch/x86/events/amd/uncore.c | 103 +++-
arch/x86/events/core.c | 37 +-
arch/x86/events/intel/bts.c | 150 ++---
arch/x86/events/intel/core.c | 345 ++++++++++-
arch/x86/events/intel/ds.c | 55 +-
arch/x86/events/intel/knc.c | 7 +-
arch/x86/events/intel/lbr.c | 2 +-
arch/x86/events/intel/p4.c | 3 +-
arch/x86/events/intel/pt.c | 2 +
arch/x86/events/intel/uncore.c | 12 +-
arch/x86/events/perf_event.h | 45 +-
arch/x86/events/perf_event_flags.h | 41 +-
arch/x86/events/zhaoxin/core.c | 3 +-
arch/x86/include/asm/msr-index.h | 4 +
arch/x86/include/asm/perf_event.h | 1 +
arch/x86/kernel/uprobes.c | 5 +
arch/xtensa/kernel/perf_event.c | 3 +-
drivers/perf/apple_m1_cpu_pmu.c | 3 +-
drivers/perf/arm_pmuv3.c | 3 +-
drivers/perf/arm_v6_pmu.c | 3 +-
drivers/perf/arm_v7_pmu.c | 3 +-
drivers/perf/arm_xscale_pmu.c | 6 +-
include/linux/cpuhotplug.h | 1 -
include/linux/perf_event.h | 298 ++++++----
include/uapi/linux/perf_event.h | 657 +++++++++++----------
kernel/cpu.c | 5 -
kernel/events/core.c | 609 +++++++++++++------
kernel/events/ring_buffer.c | 29 +-
tools/include/uapi/linux/perf_event.h | 657 +++++++++++----------
tools/testing/selftests/bpf/bench.c | 12 +
tools/testing/selftests/bpf/benchs/bench_trigger.c | 42 ++
.../selftests/bpf/benchs/run_bench_uprobes.sh | 2 +-
44 files changed, 1996 insertions(+), 1210 deletions(-)
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