Merge tag 'perf-tools-for-v6.14-2025-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf-tools updates from Namhyung Kim:
"There are a lot of changes in the perf tools

Merge tag 'perf-tools-for-v6.14-2025-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf-tools updates from Namhyung Kim:
"There are a lot of changes in the perf tools in this cycle.

build:

- Use generic syscall table to generate syscall numbers on supported
archs

- This also enables to get rid of libaudit which was used for syscall
numbers

- Remove python2 support as it's deprecated for years

- Fix issues on static build with libzstd

perf record:

- Intel-PT supports "aux-action" config term to pause or resume
tracing in the aux-buffer. Users can start the intel_pt event as
"started-paused" and configure other events to control the Intel-PT
tracing:

# perf record --kcore -e intel_pt/aux-action=start-paused/ \
-e syscalls:sys_enter_newuname/aux-action=resume/ \
-e syscalls:sys_exit_newuname/aux-action=pause/ -- uname

This requires kernel support (which was added in v6.13)

perf lock:

- 'perf lock contention' command has an ability to symbolize locks in
dynamically allocated objects using slab cache name when it runs
with BPF. Those dynamic locks would have "&" prefix in the name to
distinguish them from ordinary (static) locks

# perf lock con -abl -E 5 sleep 1
contended total wait max wait avg wait address symbol

2 1.95 us 1.77 us 975 ns ffff9d5e852d3498 &task_struct (mutex)
1 1.18 us 1.18 us 1.18 us ffff9d5e852d3538 &task_struct (mutex)
4 1.12 us 354 ns 279 ns ffff9d5e841ca800 &kmalloc-cg-512 (mutex)
2 859 ns 617 ns 429 ns ffffffffa41c3620 delayed_uprobe_lock (mutex)
3 691 ns 388 ns 230 ns ffffffffa41c0940 pack_mutex (mutex)

This also requires kernel/BPF support (which was added in v6.13)

perf ftrace:

- 'perf ftrace latency' command gets a couple of options to support
linear buckets instead of exponential. Also it's possible to
specify max and min latency for the linear buckets:

# perf ftrace latency -abn -T switch_mm_irqs_off --bucket-range=100 \
--min-latency=200 --max-latency=800 -- sleep 1
# DURATION | COUNT | GRAPH |
0 - 200 ns | 186 | ### |
200 - 300 ns | 256 | ##### |
300 - 400 ns | 364 | ####### |
400 - 500 ns | 223 | #### |
500 - 600 ns | 111 | ## |
600 - 700 ns | 41 | |
700 - 800 ns | 141 | ## |
800 - ... ns | 169 | ### |

# statistics (in nsec)
total time: 2162212
avg time: 967
max time: 16817
min time: 132
count: 2236

- As you can see in the above example, it nows shows the statistics
at the end so that users can see the avg/max/min latencies easily

- 'perf ftrace profile' command has --graph-opts option like 'perf
ftrace trace' so that it can control the tracing behaviors in the
same way. For example, it can limit the function call depth or
threshold

perf script:

- Improve physical memory resolution in 'mem-phys-addr' script by
parsing /proc/iomem file

# perf script mem-phys-addr -- find /
...
Event: mem_inst_retired.all_loads:P
Memory type count percentage
---------------------------------------- ---------- ----------
100000000-85f7fffff : System RAM 8929 69.7
547600000-54785d23f : Kernel data 1240 9.7
546a00000-5474bdfff : Kernel rodata 490 3.8
5480ce000-5485fffff : Kernel bss 121 0.9
0-fff : Reserved 3860 30.1
100000-89c01fff : System RAM 18 0.1
8a22c000-8df6efff : System RAM 5 0.0

Others:

- 'perf test' gets --runs-per-test option to run the test cases
repeatedly. This would be helpful to see if it's flaky

- Add 'parse_events' method to Python perf extension module, so that
users can use the same event parsing logic in the python code. One
more step towards implementing perf tools in Python. :)

- Support opening tracepoint events without libtraceevent. This will
be helpful if it won't use the tracing data like in 'perf stat'

- Update ARM Neoverse N2/V2 JSON events and metrics"

* tag 'perf-tools-for-v6.14-2025-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (176 commits)
perf test: Update event_groups test to use instructions
perf bench: Fix undefined behavior in cmpworker()
perf annotate: Prefer passing evsel to evsel->core.idx
perf lock: Rename fields in lock_type_table
perf lock: Add percpu-rwsem for type filter
perf lock: Fix parse_lock_type which only retrieve one lock flag
perf lock: Fix return code for functions in __cmd_contention
perf hist: Fix width calculation in hpp__fmt()
perf hist: Fix bogus profiles when filters are enabled
perf hist: Deduplicate cmp/sort/collapse code
perf test: Improve verbose documentation
perf test: Add a runs-per-test flag
perf test: Fix parallel/sequential option documentation
perf test: Send list output to stdout rather than stderr
perf test: Rename functions and variables for better clarity
perf tools: Expose quiet/verbose variables in Makefile.perf
perf config: Add a function to set one variable in .perfconfig
perf test perftool_testsuite: Return correct value for skipping
perf test perftool_testsuite: Add missing description
perf test record+probe_libc_inet_pton: Make test resilient
...

show more ...

perf intel-pt: Remove stale build comment

Commit 00a263902ac3 ("perf intel-pt: Use shared x86 insn decoder")
removed the use of diff, so remove stale busybox comment.

Signed-off-by: Ian Rogers <iro

perf intel-pt: Remove stale build comment

Commit 00a263902ac3 ("perf intel-pt: Use shared x86 insn decoder")
removed the use of diff, so remove stale busybox comment.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Veronika Molnarova <vmolnaro@redhat.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Link: https://lore.kernel.org/r/20241119011644.971342-14-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

perf x86: Define arch_fetch_insn in NO_AUXTRACE builds

archinsn.c containing arch_fetch_insn was only enabled with
CONFIG_AUXTRACE, but this meant that a NO_AUXTRACE build on x86 would
use the empty

perf x86: Define arch_fetch_insn in NO_AUXTRACE builds

archinsn.c containing arch_fetch_insn was only enabled with
CONFIG_AUXTRACE, but this meant that a NO_AUXTRACE build on x86 would
use the empty weak version of arch_fetch_insn - weak symbols are a
frequent source of errors like this and are outside of the C
specification. Change it so that archinsn.c is always built on x86 and
make the weak symbol empty version of arch_fetch_insn a strong one
guarded by ifdefs.

arch_fetch_insn on x86 depends on insn_decode which is a function
included then built into intel-pt-insn-decoder.c.
intel-pt-insn-decoder.c isn't built in a NO_AUXTRACE=1 build. Separate
the insn_decode function from intel-pt-insn-decoder.c by just directly
compiling the relevant file. Guard this compilation to be for either
always on x86 (because of the use in arch_fetch_insn) or when auxtrace
is enabled. Apply the CFLAGS overrides as necessary, reducing the amount
of code where warnings are disabled.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Veronika Molnarova <vmolnaro@redhat.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Link: https://lore.kernel.org/r/20241119011644.971342-13-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 6.12 merge window.

Merge branch 'ib/6.11-rc6-matrix-keypad-spitz' into next

Bring in changes removing support for platform data from matrix-keypad
driver.

Merge tag 'v6.11-rc1' into clk-meson-next

Linux 6.11-rc1

Merge tag 'v6.11-rc3' into trace/ring-buffer/core

The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be a

Merge tag 'v6.11-rc3' into trace/ring-buffer/core

The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be able to be mapped at the address specified by the "reserve_mem" command
line parameter.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

show more ...

Merge tag 'v6.11-rc1' into for-6.12

Linux 6.11-rc1

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

Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for
the display side. This resolves the current conflict for the
enable_display module parameter

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

Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for
the display side. This resolves the current conflict for the
enable_display module parameter and allows further pending refactors.

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

show more ...

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

Get drm-misc-next to the state of v6.11-rc2.

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

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

Sync with v6.11-rc1 in general, and specifically get the new
BACKLIGHT_POWER_ constants for power states.

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

Merge branch 'linus' into x86/mm

Bring x86 and selftests up to date

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

Let's start the new drm-misc-fixes cycle by bringing in 6.11-rc1.

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

Merge tag 'perf-tools-for-v6.11-2024-07-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Namhyung Kim:
"Build:

- Build each directory as a libra

Merge tag 'perf-tools-for-v6.11-2024-07-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Namhyung Kim:
"Build:

- Build each directory as a library so that depedency check for the
python extension module can be automatic

- Use pkg-config to check libtraceevent and libtracefs

perf sched:

- Add --task-name and --fuzzy-name options for `perf sched map`

It focuses on selected tasks only by removing unrelated tasks in
the output. It matches the task comm with the given string and the
--fuzzy-name option allows the partial matching:

$ sudo perf sched record -a sleep 1

$ sudo perf sched map --task-name kworker --fuzzy-name
. . . . - *A0 . . 481065.315131 secs A0 => kworker/5:2-i91:438521
. . . . - *- . . 481065.315160 secs
*B0 . . . - . . . 481065.316435 secs B0 => kworker/0:0-i91:437860
*- . . . . . . . 481065.316441 secs
. . . . . *A0 . . 481065.318703 secs
. . . . . *- . . 481065.318717 secs
. . *C0 . . . . . 481065.320544 secs C0 => kworker/u16:30-:430186
. . *- . . . . . 481065.320555 secs
. . *D0 . . . . . 481065.328524 secs D0 => kworker/2:0-kdm:429654
*B0 . D0 . - . . . 481065.328527 secs
*- . D0 . - . . . 481065.328535 secs
. . *- . . . . . 481065.328535 secs

- Fix -r/--repeat option of perf sched replay

The documentation said -1 will work as infinity but it didn't
accept the value. Update the code and document to use 0 instead

- Fix perf sched timehist to account the delay time for preempted
tasks

Perf event filtering:

- perf top gained filtering support on regular events using BPF like
perf record. Previously it was able to use it for tracepoints only

- The BPF filter now supports filtering by UID/GID. This should be
preferred than -u <UID> option as it's racy to scan /proc to check
tasks for the user and fails to open an event for the task if it's
already gone

$ sudo perf top -e cycles --filter "uid == $(id -u)"

perf report:

- Skip dummy events in the group output by default. The --skip-empty
option controls display of empty events without samples. But perf
report can force display all events in a group

In this case, auto-added a dummy event (for a system-wide record)
ends up in the output. Now it can skip those empty events even in
the group display mode

To preserve the old behavior, run this:

$ perf report --group --no-skip-empty

perf stat:

- Choose the most disaggregate option when multiple aggregation
options are given. It used to pick the last option in the command
line but it can be confusing and not consistent. Now it'll choose
the smallest unit

For example, it'd aggregate the result per-core when the user gave
both --per-socket and --per-core options at the same time

Internals:

- Fix `perf bench` when some CPUs are offline

- Fix handling of JIT symbol mappings to accept "/tmp/perf-${PID}.map
patterns only so that it can not be confused by other /tmp/perf-*
files

- Many improvements and fixes for `perf test`

Others:

- Support some new instructions for Intel-PT

- Fix syscall ID mapping in perf trace

- Document AMD IBS PMU usages

- Change `perf lock info` to show map and thread info by default

Vendor JSON events:

- Update Intel events and metrics

- Add i.MX9[35] DDR metrics"

* tag 'perf-tools-for-v6.11-2024-07-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (125 commits)
perf trace: Fix iteration of syscall ids in syscalltbl->entries
perf dso: Fix address sanitizer build
perf mem: Warn if memory events are not supported on all CPUs
perf arm-spe: Support multiple Arm SPE PMUs
perf build x86: Fix SC2034 error in syscalltbl.sh
perf record: Fix memset out-of-range error
perf sched map: Add --fuzzy-name option for fuzzy matching in task names
perf sched map: Add support for multiple task names using CSV
perf sched map: Add task-name option to filter the output map
perf build: Conditionally add feature check flags for libtrace{event,fs}
perf install: Don't propagate subdir to Documentation submake
perf vendor events arm64:: Add i.MX95 DDR Performance Monitor metrics
perf vendor events arm64:: Add i.MX93 DDR Performance Monitor metrics
perf dsos: When adding a dso into sorted dsos maintain the sort order
perf comm str: Avoid sort during insert
perf report: Calling available function for stats printing
perf intel-pt: Fix exclude_guest setting
perf intel-pt: Fix aux_watermark calculation for 64-bit size
perf sched replay: Fix -r/--repeat command line option for infinity
perf: pmus: Remove unneeded semicolon
...

show more ...

perf util: Make util its own library

Make the util directory into its own library. This is done to avoid
compiling code twice, once for the perf tool and once for the perf
python module. For conveni

perf util: Make util its own library

Make the util directory into its own library. This is done to avoid
compiling code twice, once for the perf tool and once for the perf
python module. For convenience:
arch/common.c
scripts/perl/Perf-Trace-Util/Context.c
scripts/python/Perf-Trace-Util/Context.c
are made part of this library.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: James Clark <james.clark@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Gary Guo <gary@garyguo.net>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Wedson Almeida Filho <wedsonaf@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andrei Vagin <avagin@google.com>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Benno Lossin <benno.lossin@proton.me>
Cc: Björn Roy Baron <bjorn3_gh@protonmail.com>
Cc: Andreas Hindborg <a.hindborg@samsung.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240625214117.953777-7-irogers@google.com

show more ...

Merge tag 'v5.18'

Linux 5.18

Merge tag 'v5.17-rc4' into for-linus

Merge with mainline to get the Intel ASoC generic helpers header and
other changes.

Merge tag 'v5.16' into next

Sync up with mainline to bring in the latest API changes.

Merge branch 'for-next' into for-linus

Pull 5.17 materials.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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

Backmerging to bring drm-misc-next-fixes up to the latest state for
the current release cycle.

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

Merge branch 'reset/of-get-optional-exclusive' of git://git.pengutronix.de/pza/linux into timers/drivers/next

"Add optional variant of of_reset_control_get_exclusive(). If the
requested reset is not

Merge branch 'reset/of-get-optional-exclusive' of git://git.pengutronix.de/pza/linux into timers/drivers/next

"Add optional variant of of_reset_control_get_exclusive(). If the
requested reset is not specified in the device tree, this function
returns NULL instead of an error."

This dependency is needed for the Generic Timer Module (a.k.a OSTM)
support for RZ/G2L.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

show more ...

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

Sync up with drm-next to get v5.16-rc2.

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

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

Thomas needs the dma_resv_for_each_fence API for i915/ttm async migration
work.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

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

Backmerging from drm/drm-next for v5.16-rc1.

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

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

We need -rc1 to address a breakage in drm/scheduler affecting panfrost.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>