Merge branch 'next' into for-linus

Prepare input updates for 5.11 merge window.

Merge tag 'v5.9' into next

Sync up with mainline to bring in the latest DTS files.

Merge branch 'master' into for-next

Sync with Linus' branch in order to be able to apply fixups
of more recent patches.

Merge branch 'for-next' into for-linus

Merge tag 'irqchip-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

- Fix atomicity of affinity update in the G

Merge tag 'irqchip-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

- Fix atomicity of affinity update in the GIC driver
- Don't sleep in atomic when waiting for a GICv4.1 RD to respond
- Fix a couple of typos in user-visible messages

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Merge tag 'v5.8-rc3' into arm/qcom

Linux 5.8-rc3

Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next

Some conflicts with ttm_bo->offset removal, but drm-misc-next needs updating to v5.8.

Signed-off-by: Maarten Lankhorst <maarten.la

Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next

Some conflicts with ttm_bo->offset removal, but drm-misc-next needs updating to v5.8.

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

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

Catch up with upstream, in particular to get c1e8d7c6a7a6 ("mmap locking
API: convert mmap_sem comments").

Signed-off-by: Jani Nikula <jani.nikula@inte

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

Catch up with upstream, in particular to get c1e8d7c6a7a6 ("mmap locking
API: convert mmap_sem comments").

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

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Merge tag 'v5.8-rc1' into regulator-5.8

Linux 5.8-rc1

Merge tag 'v5.8-rc1' into fixes

Linux 5.8-rc1

Merge v5.8-rc1 into drm-misc-fixes

Beginning a new release cycles for what will become v5.8. Updating
drm-misc-fixes accordingly.

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

Merge branch 'dt/schema-cleanups' into dt/linus

Merge branch 'x86/entry' into ras/core

to fixup conflicts in arch/x86/kernel/cpu/mce/core.c so MCE specific follow
up patches can be applied without creating a horrible merge conflict
afterwards.

Merge tag 'perf-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf updates from Ingo Molnar:
"Kernel side changes:

- Add AMD Fam17h RAPL support

- Introduce

Merge tag 'perf-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf updates from Ingo Molnar:
"Kernel side changes:

- Add AMD Fam17h RAPL support

- Introduce CAP_PERFMON to kernel and user space

- Add Zhaoxin CPU support

- Misc fixes and cleanups

Tooling changes:

- perf record:

Introduce '--switch-output-event' to use arbitrary events to be
setup and read from a side band thread and, when they take place a
signal be sent to the main 'perf record' thread, reusing the core
for '--switch-output' to take perf.data snapshots from the ring
buffer used for '--overwrite', e.g.:

# perf record --overwrite -e sched:* \
--switch-output-event syscalls:*connect* \
workload

will take perf.data.YYYYMMDDHHMMSS snapshots up to around the
connect syscalls.

Add '--num-synthesize-threads' option to control degree of
parallelism of the synthesize_mmap() code which is scanning
/proc/PID/task/PID/maps and can be time consuming. This mimics
pre-existing behaviour in 'perf top'.

- perf bench:

Add a multi-threaded synthesize benchmark and kallsyms parsing
benchmark.

- Intel PT support:

Stitch LBR records from multiple samples to get deeper backtraces,
there are caveats, see the csets for details.

Allow using Intel PT to synthesize callchains for regular events.

Add support for synthesizing branch stacks for regular events
(cycles, instructions, etc) from Intel PT data.

Misc changes:

- Updated perf vendor events for power9 and Coresight.

- Add flamegraph.py script via 'perf flamegraph'

- Misc other changes, fixes and cleanups - see the Git log for details

Also, since over the last couple of years perf tooling has matured and
decoupled from the kernel perf changes to a large degree, going
forward Arnaldo is going to send perf tooling changes via direct pull
requests"

* tag 'perf-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (163 commits)
perf/x86/rapl: Add AMD Fam17h RAPL support
perf/x86/rapl: Make perf_probe_msr() more robust and flexible
perf/x86/rapl: Flip logic on default events visibility
perf/x86/rapl: Refactor to share the RAPL code between Intel and AMD CPUs
perf/x86/rapl: Move RAPL support to common x86 code
perf/core: Replace zero-length array with flexible-array
perf/x86: Replace zero-length array with flexible-array
perf/x86/intel: Add more available bits for OFFCORE_RESPONSE of Intel Tremont
perf/x86/rapl: Add Ice Lake RAPL support
perf flamegraph: Use /bin/bash for report and record scripts
perf cs-etm: Move definition of 'traceid_list' global variable from header file
libsymbols kallsyms: Move hex2u64 out of header
libsymbols kallsyms: Parse using io api
perf bench: Add kallsyms parsing
perf: cs-etm: Update to build with latest opencsd version.
perf symbol: Fix kernel symbol address display
perf inject: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf annotate: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf trace: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
perf script: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
...

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Merge tag 'perf-core-for-mingo-5.8-20200506' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf updates from Arnaldo:

perf/core improvements and fixes:

perf recor

Merge tag 'perf-core-for-mingo-5.8-20200506' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf updates from Arnaldo:

perf/core improvements and fixes:

perf record:

- Introduce --switch-output-event to use arbitrary events to be setup
and read from a side band thread and, when they take place a signal
be sent to the main 'perf record' thread, reusing the --switch-output
code to take perf.data snapshots from the --overwrite ring buffer, e.g.:

# perf record --overwrite -e sched:* \
--switch-output-event syscalls:*connect* \
workload

will take perf.data.YYYYMMDDHHMMSS snapshots up to around the
connect syscalls.

Stephane Eranian:

- Add --num-synthesize-threads option to control degree of parallelism of the
synthesize_mmap() code which is scanning /proc/PID/task/PID/maps and can be
time consuming. This mimics pre-existing behaviour in 'perf top'.

Intel PT:

Adrian Hunter:

- Add support for synthesizing branch stacks for regular events (cycles,
instructions, etc) from Intel PT data.

perf bench:

Ian Rogers:

- Add a multi-threaded synthesize benchmark.

- Add kallsyms parsing benchmark.

Tommi Rantala:

- Fix div-by-zero if runtime is zero.

perf synthetic events:

- Remove use of sscanf from /proc reading when parsing pre-existing
threads to generate synthetic PERF_RECORD_{FORK,MMAP,COMM,etc} events.

tools api:

- Add a lightweight buffered reading API.

libsymbols:

- Parse kallsyms using new lightweight buffered reading io API.

perf parse-events:

- Fix memory leaks found on parse_events.

perf mem2node:

- Avoid double free related to realloc().

perf stat:

Jin Yao:

- Zero all the 'ena' and 'run' array slot stats for interval mode.

- Improve runtime stat for interval mode

Kajol Jain:

- Enable Hz/hz printing for --metric-only option

- Enhance JSON/metric infrastructure to handle "?".

perf tests:

Kajol Jain:

- Added test for runtime param in metric expression.

Tommi Rantala:

- Fix data path in the session topology test.

perf vendor events power9:

Kajol Jain:

- Add hv_24x7 socket/chip level metric events

Coresight:

Leo Yan:

- Move definition of 'traceid_list' global variable from header file.

Mike Leach:

- Update to build with latest opencsd version.

perf pmu:

Shaokun Zhang:

- Fix function name in comment, its get_cpuid_str(), not get_cpustr()

Stephane Eranian:

- Add perf_pmu__find_by_type() helper

perf script:

Stephane Eranian:

- Remove extraneous newline in perf_sample__fprintf_regs().

Ian Rogers:

- Avoid NULL dereference on symbol.

tools feature:

Stephane Eranian:

- Add support for detecting libpfm4.

perf symbol:

Thomas Richter:

- Fix kernel symbol address display in TUI verbose mode.

perf cgroup:

Tommi Rantala:

- Avoid needless closing of unopened fd

libperf:

He Zhe:

- Add NULL pointer check for cpu_map iteration and NULL
assignment for all_cpus.

Ian Rogers:

- Fix a refcount leak in evlist method.

Arnaldo Carvalho de Melo:

- Rename the code in tools/perf/util, i.e. perf tooling specific, that
operates on 'struct evsel' to evsel__, leaving the perf_evsel__
namespace for the routines in tools/lib/perf/ that operate on
'struct perf_evsel__'.

tools/perf specific libraries:

Konstantin Khlebnikov:

- Fix reading new topology attribute "core_cpus"

- Simplify checking if SMT is active.

perf flamegraph:

Arnaldo Carvalho de Melo:

- Use /bin/bash for report and record scripts, just like all other
such scripts, fixing a package dependency bug in a Linaro
OpenEmbedded build checker.

perf evlist:

Jagadeesh Pagadala:

- Remove duplicate headers.

Miscelaneous:

Zou Wei:

- Remove unneeded semicolon in libtraceevent, 'perf c2c' and others.

- Fix warning assignment of 0/1 to bool variable in 'perf report'

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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perf bench: Add kallsyms parsing

Add a benchmark for kallsyms parsing. Example output:

Running 'internals/kallsyms-parse' benchmark:
Average kallsyms__parse took: 103.971 ms (+- 0.121 ms)

Comm

perf bench: Add kallsyms parsing

Add a benchmark for kallsyms parsing. Example output:

Running 'internals/kallsyms-parse' benchmark:
Average kallsyms__parse took: 103.971 ms (+- 0.121 ms)

Committer testing:

Test Machine: AMD Ryzen 5 3600X 6-Core Processor

[root@five ~]# perf bench internals kallsyms-parse
# Running 'internals/kallsyms-parse' benchmark:
Average kallsyms__parse took: 79.692 ms (+- 0.101 ms)
[root@five ~]# perf stat -r5 perf bench internals kallsyms-parse
# Running 'internals/kallsyms-parse' benchmark:
Average kallsyms__parse took: 80.563 ms (+- 0.079 ms)
# Running 'internals/kallsyms-parse' benchmark:
Average kallsyms__parse took: 81.046 ms (+- 0.155 ms)
# Running 'internals/kallsyms-parse' benchmark:
Average kallsyms__parse took: 80.874 ms (+- 0.104 ms)
# Running 'internals/kallsyms-parse' benchmark:
Average kallsyms__parse took: 81.173 ms (+- 0.133 ms)
# Running 'internals/kallsyms-parse' benchmark:
Average kallsyms__parse took: 81.169 ms (+- 0.074 ms)

Performance counter stats for 'perf bench internals kallsyms-parse' (5 runs):

8,093.54 msec task-clock # 0.999 CPUs utilized ( +- 0.14% )
3,165 context-switches # 0.391 K/sec ( +- 0.18% )
10 cpu-migrations # 0.001 K/sec ( +- 23.13% )
744 page-faults # 0.092 K/sec ( +- 0.21% )
34,551,564,954 cycles # 4.269 GHz ( +- 0.05% ) (83.33%)
1,160,584,308 stalled-cycles-frontend # 3.36% frontend cycles idle ( +- 1.60% ) (83.33%)
14,974,323,985 stalled-cycles-backend # 43.34% backend cycles idle ( +- 0.24% ) (83.33%)
58,712,905,705 instructions # 1.70 insn per cycle
# 0.26 stalled cycles per insn ( +- 0.01% ) (83.34%)
14,136,433,778 branches # 1746.632 M/sec ( +- 0.01% ) (83.33%)
141,943,217 branch-misses # 1.00% of all branches ( +- 0.04% ) (83.33%)

8.1040 +- 0.0115 seconds time elapsed ( +- 0.14% )

[root@five ~]#

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20200501221315.54715-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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