Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.12, take #1

- Fix pKVM error path on init, making sure we do not chang

Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.12, take #1

- Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail

- Make sure that the host's vector length is at capped by a value
common to all CPUs

- Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken

- Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly

show more ...

Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.12

A bunch of fixes here that came in during the merge window and t

Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.12

A bunch of fixes here that came in during the merge window and the first
week of release, plus some new quirks and device IDs. There's nothing
major here, it's a bit bigger than it might've been due to there being
no fixes sent during the merge window due to your vacation.

show more ...

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Required for a panthor fix that broke when
FOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.

Signed-off-by: Maarten L

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Required for a panthor fix that broke when
FOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

show more ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts and no adjacent changes.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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 'v6.10' into next

Sync up with mainline to bring in device_for_each_child_node_scoped()
and other newer APIs.

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

Linux 6.11-rc1

Merge tag 'perf-tools-for-v6.12-1-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Arnaldo Carvalho de Melo:

- Use BPF + BTF to collect and

Merge tag 'perf-tools-for-v6.12-1-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Arnaldo Carvalho de Melo:

- Use BPF + BTF to collect and pretty print syscall and tracepoint
arguments in 'perf trace', done as an GSoC activity

- Data-type profiling improvements:

- Cache debuginfo to speed up data type resolution

- Add the 'typecln' sort order, to show which cacheline in a target
is hot or cold. The following shows members in the cfs_rq's first
cache line:

$ perf report -s type,typecln,typeoff -H
...
- 2.67% struct cfs_rq
+ 1.23% struct cfs_rq: cache-line 2
+ 0.57% struct cfs_rq: cache-line 4
+ 0.46% struct cfs_rq: cache-line 6
- 0.41% struct cfs_rq: cache-line 0
0.39% struct cfs_rq +0x14 (h_nr_running)
0.02% struct cfs_rq +0x38 (tasks_timeline.rb_leftmost)

- When a typedef resolves to a unnamed struct, use the typedef name

- When a struct has just one basic type field (int, etc), resolve
the type sort order to the name of the struct, not the type of
the field

- Support type folding/unfolding in the data-type annotation TUI

- Fix bitfields offsets and sizes

- Initial support for PowerPC, using libcapstone and the usual
objdump disassembly parsing routines

- Add support for disassembling and addr2line using the LLVM libraries,
speeding up those operations

- Support --addr2line option in 'perf script' as with other tools

- Intel branch counters (LBR event logging) support, only available in
recent Intel processors, for instance, the new "brcntr" field can be
asked from 'perf script' to print the information collected from this
feature:

$ perf script -F +brstackinsn,+brcntr

# Branch counter abbr list:
# branch-instructions:ppp = A
# branch-misses = B
# '-' No event occurs
# '+' Event occurrences may be lost due to branch counter saturated
tchain_edit 332203 3366329.405674: 53030 branch-instructions:ppp: 401781 f3+0x2c (home/sdp/test/tchain_edit)
f3+31:
0000000000401774 insn: eb 04 br_cntr: AA # PRED 5 cycles [5]
000000000040177a insn: 81 7d fc 0f 27 00 00
0000000000401781 insn: 7e e3 br_cntr: A # PRED 1 cycles [6] 2.00 IPC
0000000000401766 insn: 8b 45 fc
0000000000401769 insn: 83 e0 01
000000000040176c insn: 85 c0
000000000040176e insn: 74 06 br_cntr: A # PRED 1 cycles [7] 4.00 IPC
0000000000401776 insn: 83 45 fc 01
000000000040177a insn: 81 7d fc 0f 27 00 00
0000000000401781 insn: 7e e3 br_cntr: A # PRED 7 cycles [14] 0.43 IPC

- Support Timed PEBS (Precise Event-Based Sampling), a recent hardware
feature in Intel processors

- Add 'perf ftrace profile' subcommand, using ftrace's function-graph
tracer so that users can see the total, average, max execution time
as well as the number of invocations easily, for instance:

$ sudo perf ftrace profile -G __x64_sys_perf_event_open -- \
perf stat -e cycles -C1 true 2> /dev/null | head
# Total (us) Avg (us) Max (us) Count Function
65.611 65.611 65.611 1 __x64_sys_perf_event_open
30.527 30.527 30.527 1 anon_inode_getfile
30.260 30.260 30.260 1 __anon_inode_getfile
29.700 29.700 29.700 1 alloc_file_pseudo
17.578 17.578 17.578 1 d_alloc_pseudo
17.382 17.382 17.382 1 __d_alloc
16.738 16.738 16.738 1 kmem_cache_alloc_lru
15.686 15.686 15.686 1 perf_event_alloc
14.012 7.006 11.264 2 obj_cgroup_charge

- 'perf sched timehist' improvements, including the addition of
priority showing/filtering command line options

- Varios improvements to the 'perf probe', including 'perf test'
regression testings

- Introduce the 'perf check', initially to check if some feature is
in place, using it in 'perf test'

- Various fixes for 32-bit systems

- Address more leak sanitizer failures

- Fix memory leaks (LBR, disasm lock ops, etc)

- More reference counting fixes (branch_info, etc)

- Constify 'struct perf_tool' parameters to improve code generation
and reduce the chances of having its internals changed, which isn't
expected

- More constifications in various other places

- Add more build tests, including for JEVENTS

- Add more 'perf test' entries ('perf record LBR', pipe/inject,
--setup-filter, 'perf ftrace', 'cgroup sampling', etc)

- Inject build ids for all entries in a call chain in 'perf inject',
not just for the main sample

- Improve the BPF based sample filter, allowing root to setup filters
in bpffs that then can be used by non-root users

- Allow filtering by cgroups with the BPF based sample filter

- Allow a more compact way for 'perf mem report' using the
-T/--type-profile and also provide a --sort option similar to the one
in 'perf report', 'perf top', to setup the sort order manually

- Fix --group behavior in 'perf annotate' when leader has no samples,
where it was not showing anything even when other events in the group
had samples

- Fix spinlock and rwlock accounting in 'perf lock contention'

- Fix libsubcmd fixdep Makefile dependencies

- Improve 'perf ftrace' error message when ftrace isn't available

- Update various Intel JSON vendor event files

- ARM64 CoreSight hardware tracing infrastructure improvements, mostly
not visible to users

- Update power10 JSON events

* tag 'perf-tools-for-v6.12-1-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (310 commits)
perf trace: Mark the 'head' arg in the set_robust_list syscall as coming from user space
perf trace: Mark the 'rseq' arg in the rseq syscall as coming from user space
perf env: Find correct branch counter info on hybrid
perf evlist: Print hint for group
tools: Drop nonsensical -O6
perf pmu: To info add event_type_desc
perf evsel: Add accessor for tool_event
perf pmus: Fake PMU clean up
perf list: Avoid potential out of bounds memory read
perf help: Fix a typo ("bellow")
perf ftrace: Detect whether ftrace is enabled on system
perf test shell probe_vfs_getname: Remove extraneous '=' from probe line number regex
perf build: Require at least clang 16.0.6 to build BPF skeletons
perf trace: If a syscall arg is marked as 'const', assume it is coming _from_ userspace
perf parse-events: Remove duplicated include in parse-events.c
perf callchain: Allow symbols to be optional when resolving a callchain
perf inject: Lazy build-id mmap2 event insertion
perf inject: Add new mmap2-buildid-all option
perf inject: Fix build ID injection
perf annotate-data: Add pr_debug_scope()
...

show more ...

libsubcmd: Don't free the usage string

Currently, commands which depend on 'parse_options_subcommand()' don't
show the usage string, and instead show '(null)'

$ ./perf sched
Usage: (null)

libsubcmd: Don't free the usage string

Currently, commands which depend on 'parse_options_subcommand()' don't
show the usage string, and instead show '(null)'

$ ./perf sched
Usage: (null)

-D, --dump-raw-trace dump raw trace in ASCII
-f, --force don't complain, do it
-i, --input <file> input file name
-v, --verbose be more verbose (show symbol address, etc)

'parse_options_subcommand()' is generally expected to initialise the usage
string, with information in the passed 'subcommands[]' array

This behaviour was changed in:

230a7a71f92212e7 ("libsubcmd: Fix parse-options memory leak")

Where the generated usage string is deallocated, and usage[0] string is
reassigned as NULL.

As discussed in [1], free the allocated usage string in the main
function itself, and don't reset usage string to NULL in
parse_options_subcommand

With this change, the behaviour is restored.

$ ./perf sched
Usage: perf sched [<options>] {record|latency|map|replay|script|timehist}

-D, --dump-raw-trace dump raw trace in ASCII
-f, --force don't complain, do it
-i, --input <file> input file name
-v, --verbose be more verbose (show symbol address, etc)

[1]: https://lore.kernel.org/linux-perf-users/htq5vhx6piet4nuq2mmhk7fs2bhfykv52dbppwxmo3s7du2odf@styd27tioc6e/

Fixes: 230a7a71f92212e7 ("libsubcmd: Fix parse-options memory leak")
Suggested-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Aditya Gupta <adityag@linux.ibm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240904061836.55873-2-adityag@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

perf sched timehist: Add --prio option

The --prio option is used to only show events for the given task priority(ies).
The default is to show events for all priority tasks, which is consistent with

perf sched timehist: Add --prio option

The --prio option is used to only show events for the given task priority(ies).
The default is to show events for all priority tasks, which is consistent with
the previous behavior.

Testcase:
# perf sched record nice -n 9 perf bench sched messaging -l 10000
# Running 'sched/messaging' benchmark:
# 20 sender and receiver processes per group
# 10 groups == 400 processes run

Total time: 3.435 [sec]
[ perf record: Woken up 270 times to write data ]
[ perf record: Captured and wrote 618.688 MB perf.data (5729036 samples) ]

# perf sched timehist -h

Usage: perf sched timehist [<options>]

-C, --cpu <cpu> list of cpus to profile
-D, --dump-raw-trace dump raw trace in ASCII
-f, --force don't complain, do it
-g, --call-graph Display call chains if present (default on)
-I, --idle-hist Show idle events only
-i, --input <file> input file name
-k, --vmlinux <file> vmlinux pathname
-M, --migrations Show migration events
-n, --next Show next task
-p, --pid <pid[,pid...]>
analyze events only for given process id(s)
-s, --summary Show only syscall summary with statistics
-S, --with-summary Show all syscalls and summary with statistics
-t, --tid <tid[,tid...]>
analyze events only for given thread id(s)
-V, --cpu-visual Add CPU visual
-v, --verbose be more verbose (show symbol address, etc)
-w, --wakeups Show wakeup events
--kallsyms <file>
kallsyms pathname
--max-stack <n> Maximum number of functions to display backtrace.
--prio <prio> analyze events only for given task priority(ies)
--show-prio Show task priority
--state Show task state when sched-out
--symfs <directory>
Look for files with symbols relative to this directory
--time <str> Time span for analysis (start,stop)

# perf sched timehist --prio 140
Samples of sched_switch event do not have callchains.
Invalid prio string

# perf sched timehist --show-prio --prio 129
Samples of sched_switch event do not have callchains.
time cpu task name prio wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ -------- --------- --------- ---------
2090450.765421 [0002] sched-messaging[1229618] 129 0.000 0.000 0.029
2090450.765445 [0007] sched-messaging[1229616] 129 0.000 0.062 0.043
2090450.765448 [0014] sched-messaging[1229619] 129 0.000 0.000 0.032
2090450.765478 [0013] sched-messaging[1229617] 129 0.000 0.065 0.048
2090450.765503 [0014] sched-messaging[1229622] 129 0.000 0.000 0.017
2090450.765550 [0002] sched-messaging[1229624] 129 0.000 0.000 0.021
2090450.765562 [0007] sched-messaging[1229621] 129 0.000 0.071 0.028
2090450.765570 [0005] sched-messaging[1229620] 129 0.000 0.064 0.066
2090450.765583 [0001] sched-messaging[1229625] 129 0.000 0.001 0.031
2090450.765595 [0013] sched-messaging[1229623] 129 0.000 0.060 0.028
2090450.765637 [0014] sched-messaging[1229628] 129 0.000 0.000 0.019
2090450.765665 [0007] sched-messaging[1229627] 129 0.000 0.038 0.030
<SNIP>

# perf sched timehist --show-prio --prio 0,120-129
Samples of sched_switch event do not have callchains.
time cpu task name prio wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ -------- --------- --------- ---------
2090450.763231 [0000] perf[1229608] 120 0.000 0.000 0.000
2090450.763235 [0000] migration/0[15] 0 0.000 0.001 0.003
2090450.763263 [0001] perf[1229608] 120 0.000 0.000 0.000
2090450.763268 [0001] migration/1[21] 0 0.000 0.001 0.004
2090450.763302 [0002] perf[1229608] 120 0.000 0.000 0.000
2090450.763309 [0002] migration/2[27] 0 0.000 0.001 0.007
2090450.763338 [0003] perf[1229608] 120 0.000 0.000 0.000
2090450.763343 [0003] migration/3[33] 0 0.000 0.001 0.004
2090450.763459 [0004] perf[1229608] 120 0.000 0.000 0.000
2090450.763469 [0004] migration/4[39] 0 0.000 0.002 0.010
2090450.763496 [0005] perf[1229608] 120 0.000 0.000 0.000
2090450.763501 [0005] migration/5[45] 0 0.000 0.001 0.004
2090450.763613 [0006] perf[1229608] 120 0.000 0.000 0.000
2090450.763622 [0006] migration/6[51] 0 0.000 0.001 0.008
2090450.763652 [0007] perf[1229608] 120 0.000 0.000 0.000
2090450.763660 [0007] migration/7[57] 0 0.000 0.001 0.008
<SNIP>
2090450.765665 [0001] <idle> 120 0.031 0.031 0.081
2090450.765665 [0007] sched-messaging[1229627] 129 0.000 0.038 0.030
2090450.765667 [0000] s1-perf[8235/7168] 120 0.008 0.000 0.004
2090450.765684 [0013] <idle> 120 0.028 0.028 0.088
2090450.765685 [0001] sched-messaging[1229630] 129 0.000 0.001 0.020
2090450.765688 [0000] <idle> 120 0.004 0.004 0.020
2090450.765689 [0002] <idle> 120 0.021 0.021 0.138
2090450.765691 [0005] sched-messaging[1229626] 129 0.000 0.085 0.029

Signed-off-by: Yang Jihong <yangjihong@bytedance.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240819033016.2427235-3-yangjihong@bytedance.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

perf sched timehist: Add --show-prio option

The --show-prio option is used to display the priority of task.

It is disabled by default, which is consistent with original behavior.

The display forma

perf sched timehist: Add --show-prio option

The --show-prio option is used to display the priority of task.

It is disabled by default, which is consistent with original behavior.

The display format is xxx (priority does not change during task running)
or xxx->yyy (priority changes during task running)

Testcase:

# perf sched record nice -n 9 true
[ perf record: Woken up 0 times to write data ]
[ perf record: Captured and wrote 0.497 MB perf.data ]

# perf sched timehist -h

Usage: perf sched timehist [<options>]

-C, --cpu <cpu> list of cpus to profile
-D, --dump-raw-trace dump raw trace in ASCII
-f, --force don't complain, do it
-g, --call-graph Display call chains if present (default on)
-I, --idle-hist Show idle events only
-i, --input <file> input file name
-k, --vmlinux <file> vmlinux pathname
-M, --migrations Show migration events
-n, --next Show next task
-p, --pid <pid[,pid...]>
analyze events only for given process id(s)
-s, --summary Show only syscall summary with statistics
-S, --with-summary Show all syscalls and summary with statistics
-t, --tid <tid[,tid...]>
analyze events only for given thread id(s)
-V, --cpu-visual Add CPU visual
-v, --verbose be more verbose (show symbol address, etc)
-w, --wakeups Show wakeup events
--kallsyms <file>
kallsyms pathname
--max-stack <n> Maximum number of functions to display backtrace.
--show-prio Show task priority
--state Show task state when sched-out
--symfs <directory>
Look for files with symbols relative to this directory
--time <str> Time span for analysis (start,stop)

# perf sched timehist
Samples of sched_switch event do not have callchains.
time cpu task name wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ --------- --------- ---------
23952.006537 [0000] perf[534] 0.000 0.000 0.000
23952.006593 [0000] migration/0[19] 0.000 0.014 0.056
23952.006899 [0001] perf[534] 0.000 0.000 0.000
23952.006947 [0001] migration/1[22] 0.000 0.015 0.047
23952.007138 [0002] perf[534] 0.000 0.000 0.000
<SNIP>

# perf sched timehist --show-prio
Samples of sched_switch event do not have callchains.
time cpu task name prio wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ -------- --------- --------- ---------
23952.006537 [0000] perf[534] 120 0.000 0.000 0.000
23952.006593 [0000] migration/0[19] 0 0.000 0.014 0.056
23952.006899 [0001] perf[534] 120 0.000 0.000 0.000
<SNIP>
23952.034843 [0003] nice[535] 120->129 0.189 0.024 23.314
<SNIP>
23952.053838 [0005] rcu_preempt[16] 120 3.993 0.000 0.023
23952.053990 [0005] <idle> 120 0.023 0.023 0.152
23952.054137 [0006] <idle> 120 1.427 1.427 17.855
23952.054278 [0007] <idle> 120 0.506 0.506 1.650

Signed-off-by: Yang Jihong <yangjihong@bytedance.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240819033016.2427235-2-yangjihong@bytedance.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

perf sched timehist: Remove redundant BUG_ON in timehist_sched_change_event()

The BUG_ON(thread__tid(thread) != 0) in timehist_sched_change_event() is
redundant, remove it.

No functional change.

F

perf sched timehist: Remove redundant BUG_ON in timehist_sched_change_event()

The BUG_ON(thread__tid(thread) != 0) in timehist_sched_change_event() is
redundant, remove it.

No functional change.

Fixes: 07235f84ece6b66f ("perf sched timehist: Add -I/--idle-hist option")
Reviewed-by: Madadi Vineeth Reddy <vineethr@linux.ibm.com>
Signed-off-by: Yang Jihong <yangjihong@bytedance.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240812132606.3126490-2-yangjihong@bytedance.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

perf sched timehist: Skip print non-idle task samples when only show idle events

when only show idle events, runtime stats of non-idle tasks is not updated,
and the value is 0, there is no need to p

perf sched timehist: Skip print non-idle task samples when only show idle events

when only show idle events, runtime stats of non-idle tasks is not updated,
and the value is 0, there is no need to print non-idle samples.

Before:

# perf sched timehist -I
Samples of sched_switch event do not have callchains.
time cpu task name wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ --------- --------- ---------
2090450.763235 [0000] migration/0[15] 0.000 0.000 0.000
2090450.763268 [0001] migration/1[21] 0.000 0.000 0.000
2090450.763309 [0002] migration/2[27] 0.000 0.000 0.000
2090450.763343 [0003] migration/3[33] 0.000 0.000 0.000
2090450.763469 [0004] migration/4[39] 0.000 0.000 0.000
2090450.763501 [0005] migration/5[45] 0.000 0.000 0.000
2090450.763622 [0006] migration/6[51] 0.000 0.000 0.000
2090450.763660 [0007] migration/7[57] 0.000 0.000 0.000
2090450.763741 [0009] migration/9[69] 0.000 0.000 0.000
2090450.763862 [0010] migration/10[75] 0.000 0.000 0.000
2090450.763894 [0011] migration/11[81] 0.000 0.000 0.000
2090450.764021 [0012] migration/12[87] 0.000 0.000 0.000
2090450.764056 [0013] migration/13[93] 0.000 0.000 0.000
2090450.764135 [0014] migration/14[99] 0.000 0.000 0.000
2090450.764163 [0015] migration/15[105] 0.000 0.000 0.000
2090450.764292 [0016] migration/16[111] 0.000 0.000 0.000
2090450.764371 [0017] migration/17[117] 0.000 0.000 0.000
2090450.764422 [0018] migration/18[123] 0.000 0.000 0.000
2090450.764490 [0000] <idle> 0.000 0.000 1.255
2090450.764505 [0000] s1-perf[8235/7168] 0.000 0.000 0.000
2090450.764571 [0016] <idle> 0.000 0.000 0.278
2090450.764588 [0010] <idle> 0.000 0.000 0.725
2090450.764590 [0016] s1-agent[7179/7162] 0.000 0.000 0.000
2090450.764635 [0000] <idle> 0.015 0.015 0.129
2090450.764637 [0017] <idle> 0.000 0.000 0.266
2090450.764639 [0000] s1-perf[8235/7168] 0.000 0.000 0.000
2090450.764668 [0017] s1-agent[7180/7162] 0.000 0.000 0.000
2090450.764669 [0000] <idle> 0.003 0.003 0.029
2090450.764672 [0000] s1-perf[8235/7168] 0.000 0.000 0.000
2090450.764683 [0000] <idle> 0.003 0.003 0.010

After:

# perf sched timehist -I
Samples of sched_switch event do not have callchains.
time cpu task name wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ --------- --------- ---------
2090450.764490 [0000] <idle> 0.000 0.000 1.255
2090450.764571 [0016] <idle> 0.000 0.000 0.278
2090450.764588 [0010] <idle> 0.000 0.000 0.725
2090450.764635 [0000] <idle> 0.015 0.015 0.129
2090450.764637 [0017] <idle> 0.000 0.000 0.266
2090450.764669 [0000] <idle> 0.003 0.003 0.029
2090450.764683 [0000] <idle> 0.003 0.003 0.010
2090450.764688 [0016] <idle> 0.019 0.019 0.097
2090450.764694 [0000] <idle> 0.001 0.001 0.009
2090450.764706 [0000] <idle> 0.001 0.001 0.010
2090450.764725 [0002] <idle> 0.000 0.000 1.415
2090450.764728 [0000] <idle> 0.002 0.002 0.019
2090450.764823 [0000] <idle> 0.003 0.003 0.091
2090450.764838 [0019] <idle> 0.000 0.000 0.154
2090450.764865 [0002] <idle> 0.109 0.109 0.029
2090450.764866 [0000] <idle> 0.012 0.012 0.030
2090450.764880 [0002] <idle> 0.013 0.013 0.001
2090450.764880 [0000] <idle> 0.002 0.002 0.011
2090450.764896 [0000] <idle> 0.001 0.001 0.013
2090450.764903 [0019] <idle> 0.063 0.063 0.002
2090450.764908 [0019] <idle> 0.003 0.003 0.001

Fixes: 07235f84ece6b66f ("perf sched timehist: Add -I/--idle-hist option")
Signed-off-by: Yang Jihong <yangjihong@bytedance.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240812132606.3126490-1-yangjihong@bytedance.com
Reviewed-and-tested-by: Madadi Vineeth Reddy <vineethr@linux.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

perf sched timehist: Fixed timestamp error when unable to confirm event sched_in time

If sched_in event for current task is not recorded, sched_in timestamp
will be set to end_time of time window in

perf sched timehist: Fixed timestamp error when unable to confirm event sched_in time

If sched_in event for current task is not recorded, sched_in timestamp
will be set to end_time of time window interest, causing an error in
timestamp show. In this case, we choose to ignore this event.

Test scenario:

perf[1229608] does not record the first sched_in event, run time and sch delay are both 0

# perf sched timehist
Samples of sched_switch event do not have callchains.
time cpu task name wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ --------- --------- ---------
2090450.763231 [0000] perf[1229608] 0.000 0.000 0.000
2090450.763235 [0000] migration/0[15] 0.000 0.001 0.003
2090450.763263 [0001] perf[1229608] 0.000 0.000 0.000
2090450.763268 [0001] migration/1[21] 0.000 0.001 0.004
2090450.763302 [0002] perf[1229608] 0.000 0.000 0.000
2090450.763309 [0002] migration/2[27] 0.000 0.001 0.007
2090450.763338 [0003] perf[1229608] 0.000 0.000 0.000
2090450.763343 [0003] migration/3[33] 0.000 0.001 0.004

Before:

arbitrarily specify a time window of interest, timestamp will be set to an incorrect value

# perf sched timehist --time 100,200
Samples of sched_switch event do not have callchains.
time cpu task name wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ --------- --------- ---------
200.000000 [0000] perf[1229608] 0.000 0.000 0.000
200.000000 [0001] perf[1229608] 0.000 0.000 0.000
200.000000 [0002] perf[1229608] 0.000 0.000 0.000
200.000000 [0003] perf[1229608] 0.000 0.000 0.000
200.000000 [0004] perf[1229608] 0.000 0.000 0.000
200.000000 [0005] perf[1229608] 0.000 0.000 0.000
200.000000 [0006] perf[1229608] 0.000 0.000 0.000
200.000000 [0007] perf[1229608] 0.000 0.000 0.000

After:

# perf sched timehist --time 100,200
Samples of sched_switch event do not have callchains.
time cpu task name wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ --------- --------- ---------

Fixes: 853b74071110bed3 ("perf sched timehist: Add option to specify time window of interest")
Signed-off-by: Yang Jihong <yangjihong@bytedance.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsa@cumulusnetworks.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240819024720.2405244-1-yangjihong@bytedance.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

perf sched timehist: Fix missing free of session in perf_sched__timehist()

When perf_time__parse_str() fails in perf_sched__timehist(),
need to free session that was previously created, fix it.

Fix

perf sched timehist: Fix missing free of session in perf_sched__timehist()

When perf_time__parse_str() fails in perf_sched__timehist(),
need to free session that was previously created, fix it.

Fixes: 853b74071110bed3 ("perf sched timehist: Add option to specify time window of interest")
Signed-off-by: Yang Jihong <yangjihong@bytedance.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsa@cumulusnetworks.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240806023533.1316348-1-yangjihong@bytedance.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

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 ...

perf sched: Use perf_tool__init()

Use perf_tool__init() so that more uses of 'struct perf_tool' can be const
and not relying on perf_tool__fill_defaults().

Signed-off-by: Ian Rogers <irogers@google

perf sched: Use perf_tool__init()

Use perf_tool__init() so that more uses of 'struct perf_tool' can be const
and not relying on perf_tool__fill_defaults().

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20240812204720.631678-19-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

perf tool: Constify tool pointers

The tool pointer (to a struct largely of function pointers) is passed
around but is unchanged except at initialization. Change parameter and
variable types to be co

perf tool: Constify tool pointers

The tool pointer (to a struct largely of function pointers) is passed
around but is unchanged except at initialization. Change parameter and
variable types to be const to lower the possibilities of what could
happen with a tool.

Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20240812204720.631678-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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>