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Author SHA1 Message Date
Zhengjun Xing e69a5c0102 perf evlist: Extend arch_evsel__must_be_in_group to support hybrid systems
For the hybrid system, the "slots" event changes to "cpu_core/slots/", need
extend API arch_evsel__must_be_in_group() to support hybrid systems.

In the origin code, for hybrid system event "cpu_core/slots/", the output
of the API arch_evsel__must_be_in_group() is "false" (in fact,it should be
"true"). Currently only one API evsel__remove_from_group() calls it. In
evsel__remove_from_group(), it adds the second condition to check, so the
output of evsel__remove_from_group() still is correct. That's the reason
why there isn't an instant error. I'd like to fix the issue found in API
arch_evsel__must_be_in_group() in case someone else using the function in
the other place.

Fixes: d98079c05b ("perf evlist: Keep topdown counters in weak group")
Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20220601152544.1842447-1-zhengjun.xing@linux.intel.com
Cc: peterz@infradead.org
Cc: adrian.hunter@intel.com
Cc: alexander.shishkin@intel.com
Cc: acme@kernel.org
Cc: ak@linux.intel.com
Cc: jolsa@redhat.com
Cc: mingo@redhat.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
2022-06-03 21:12:34 +02:00
Leo Yan 12fdd6c009 perf scripts python: Support Arm CoreSight trace data disassembly
This commit adds python script to parse CoreSight tracing event and
print out source line and disassembly, it generates readable program
execution flow for easier humans inspecting.

The script receives CoreSight tracing packet with below format:

                +------------+------------+------------+
  packet(n):    |    addr    |    ip      |    cpu     |
                +------------+------------+------------+
  packet(n+1):  |    addr    |    ip      |    cpu     |
                +------------+------------+------------+

packet::addr presents the start address of the coming branch sample, and
packet::ip is the last address of the branch smple.  Therefore, a code
section between branches starts from packet(n)::addr and it stops at
packet(n+1)::ip.  As results we combines the two continuous packets to
generate the address range for instructions:

  [ sample(n)::addr .. sample(n+1)::ip ]

The script supports both objdump or llvm-objdump for disassembly with
specifying option '-d'.  If doesn't specify option '-d', the script
simply outputs source lines and symbols.

Below shows usages with llvm-objdump or objdump to output disassembly.

  # perf script -s scripts/python/arm-cs-trace-disasm.py -- -d llvm-objdump-11 -k ./vmlinux
  ARM CoreSight Trace Data Assembler Dump
  	ffff800008eb3198 <etm4_enable_hw>:
  	ffff800008eb3310: c0 38 00 35  	cbnz	w0, 0xffff800008eb3a28 <etm4_enable_hw+0x890>
  	ffff800008eb3314: 9f 3f 03 d5  	dsb	sy
  	ffff800008eb3318: df 3f 03 d5  	isb
  	ffff800008eb331c: f5 5b 42 a9  	ldp	x21, x22, [sp, #32]
  	ffff800008eb3320: fb 73 45 a9  	ldp	x27, x28, [sp, #80]
  	ffff800008eb3324: e0 82 40 39  	ldrb	w0, [x23, #32]
  	ffff800008eb3328: 60 00 00 34  	cbz	w0, 0xffff800008eb3334 <etm4_enable_hw+0x19c>
  	ffff800008eb332c: e0 03 19 aa  	mov	x0, x25
  	ffff800008eb3330: 8c fe ff 97  	bl	0xffff800008eb2d60 <etm4_cs_lock.isra.0.part.0>
              main  6728/6728  [0004]         0.000000000  etm4_enable_hw+0x198                    [kernel.kallsyms]
  	ffff800008eb2d60 <etm4_cs_lock.isra.0.part.0>:
  	ffff800008eb2d60: 1f 20 03 d5  	nop
  	ffff800008eb2d64: 1f 20 03 d5  	nop
  	ffff800008eb2d68: 3f 23 03 d5  	hint	#25
  	ffff800008eb2d6c: 00 00 40 f9  	ldr	x0, [x0]
  	ffff800008eb2d70: 9f 3f 03 d5  	dsb	sy
  	ffff800008eb2d74: 00 c0 3e 91  	add	x0, x0, #4016
  	ffff800008eb2d78: 1f 00 00 b9  	str	wzr, [x0]
  	ffff800008eb2d7c: bf 23 03 d5  	hint	#29
  	ffff800008eb2d80: c0 03 5f d6  	ret
              main  6728/6728  [0004]         0.000000000  etm4_cs_lock.isra.0.part.0+0x20

  # perf script -s scripts/python/arm-cs-trace-disasm.py -- -d objdump -k ./vmlinux
  ARM CoreSight Trace Data Assembler Dump
  	ffff800008eb3310 <etm4_enable_hw+0x178>:
  	ffff800008eb3310:	350038c0 	cbnz	w0, ffff800008eb3a28 <etm4_enable_hw+0x890>
  	ffff800008eb3314:	d5033f9f 	dsb	sy
  	ffff800008eb3318:	d5033fdf 	isb
  	ffff800008eb331c:	a9425bf5 	ldp	x21, x22, [sp, #32]
  	ffff800008eb3320:	a94573fb 	ldp	x27, x28, [sp, #80]
  	ffff800008eb3324:	394082e0 	ldrb	w0, [x23, #32]
  	ffff800008eb3328:	34000060 	cbz	w0, ffff800008eb3334 <etm4_enable_hw+0x19c>
  	ffff800008eb332c:	aa1903e0 	mov	x0, x25
  	ffff800008eb3330:	97fffe8c 	bl	ffff800008eb2d60 <etm4_cs_lock.isra.0.part.0>
              main  6728/6728  [0004]         0.000000000  etm4_enable_hw+0x198                    [kernel.kallsyms]
  	ffff800008eb2d60 <etm4_cs_lock.isra.0.part.0>:
  	ffff800008eb2d60:	d503201f 	nop
  	ffff800008eb2d64:	d503201f 	nop
  	ffff800008eb2d68:	d503233f 	paciasp
  	ffff800008eb2d6c:	f9400000 	ldr	x0, [x0]
  	ffff800008eb2d70:	d5033f9f 	dsb	sy
  	ffff800008eb2d74:	913ec000 	add	x0, x0, #0xfb0
  	ffff800008eb2d78:	b900001f 	str	wzr, [x0]
  	ffff800008eb2d7c:	d50323bf 	autiasp
  	ffff800008eb2d80:	d65f03c0 	ret
              main  6728/6728  [0004]         0.000000000  etm4_cs_lock.isra.0.part.0+0x20

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Co-authored-by: Al Grant <al.grant@arm.com>
Co-authored-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Co-authored-by: Tor Jeremiassen <tor@ti.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Eelco Chaudron <echaudro@redhat.com>
Cc: German Gomez <german.gomez@arm.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: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Tanmay Jagdale <tanmay@marvell.com>
Cc: coresight@lists.linaro.org
Cc: zengshun . wu <zengshun.wu@outlook.com>
Link: https://lore.kernel.org/r/20220521130446.4163597-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-27 13:22:14 -03:00
Leo Yan c4f462235c perf scripting python: Expose dso and map information
This change adds dso build_id and corresponding map's start and end
address.  The info of dso build_id can be used to find dso file path,
and we can validate if a branch address falls into the range of map's
start and end addresses.

In addition, the map's start address can be used as an offset for
disassembly.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Al Grant <al.grant@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Eelco Chaudron <echaudro@redhat.com>
Cc: German Gomez <german.gomez@arm.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: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Tanmay Jagdale <tanmay@marvell.com>
Cc: coresight@lists.linaro.org
Cc: zengshun . wu <zengshun.wu@outlook.com>
Link: https://lore.kernel.org/r/20220521130446.4163597-2-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-27 13:22:13 -03:00
Zhengjun Xing f4df0dbbe6 perf jevents: Fix event syntax error caused by ExtSel
In the origin code, when "ExtSel" is 1, the eventcode will change to
"eventcode |= 1 << 21”. For event “UNC_Q_RxL_CREDITS_CONSUMED_VN0.DRS",
its "ExtSel" is "1", its eventcode will change from 0x1E to 0x20001E,
but in fact the eventcode should <=0x1FF, so this will cause the parse
fail:

  # perf stat -e "UNC_Q_RxL_CREDITS_CONSUMED_VN0.DRS" -a sleep 0.1
  event syntax error: '.._RxL_CREDITS_CONSUMED_VN0.DRS'
                                    \___ value too big for format, maximum is 511

On the perf kernel side, the kernel assumes the valid bits are continuous.
It will adjust the 0x100 (bit 8 for perf tool) to bit 21 in HW.

DEFINE_UNCORE_FORMAT_ATTR(event_ext, event, "config:0-7,21");

So the perf tool follows the kernel side and just set bit8 other than bit21.

Fixes: fedb2b5182 ("perf jevents: Add support for parsing uncore json files")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220525140410.1706851-1-zhengjun.xing@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-27 13:22:13 -03:00
James Clark 2be00431c5 perf tools arm64: Add support for VG register
Add the name of the VG register so it can be used in --user-regs

The event will fail to open if the register is requested but not
available so only add it to the mask if the kernel supports sve and also
if it supports that specific register.

Committer notes:

Add conditional definition of HWCAP_SVE, as suggested by Leo Yan, to
build on older systems where this is not available in the system
headers.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220525154114.718321-6-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-27 13:21:33 -03:00
James Clark d511578b9d perf unwind arm64: Decouple Libunwind register names from Perf
DWARF register numbers and real register numbers on aarch64 are
equivalent. Remove the references to the register names from Libunwind
so that new registers are supported without having to add build time
feature checks for each new register.

The unwinder won't ask for a register that it doesn't know about and
Perf will already report an error for an unknown or unrecorded register
in the perf_reg_value() function so extra validation isn't needed.

After this change the new VG register can be read by libunwind.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220525154114.718321-5-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:43:05 -03:00
James Clark 721052048b perf unwind: Use dynamic register set for DWARF unwind
Architectures can detect availability of extra registers at runtime so
use this more complete set for unwinding. This will include the VG
register on arm64 in a later commit.

If the function isn't implemented then PERF_REGS_MASK is returned and
there is no change.

Committer notes:

Added util/perf_regs.c to tools/perf/util/python-ext-sources so that
'perf test python' passes, i.e. the perf python binding has all the
symbols it needs, addressing:

  $ perf test -v python
   19: 'import perf' in python                                         :
  --- start ---
  test child forked, pid 2037817
  python usage test: "echo "import sys ; sys.path.append('/tmp/build/perf/python'); import perf" | '/usr/bin/python3' "
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
  ImportError: /tmp/build/perf/python/perf.cpython-310-x86_64-linux-gnu.so: undefined symbol: arch__user_reg_mask
  test child finished with -1
  ---- end ----
  'import perf' in python: FAILED!
  $

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220525154114.718321-4-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:41:36 -03:00
James Clark 8803880f7d perf unwind arm64: Use perf's copy of kernel headers
Fix this include path to use perf's copy of the kernel header rather
than the one from the root of the repo.

This fixes build errors when only applying the perf tools part of a
patchset rather than both sides.

Reported-by: German Gomez <german.gomez@arm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: German Gomez <german.gomez@arm.com>
Cc: <broonie@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220525154114.718321-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:58 -03:00
Leo Yan c4040212bc perf c2c: Use stdio interface if slang is not supported
If the slang lib is not installed on the system, perf c2c tool disables TUI
mode and roll back to use stdio mode;  but the flag 'c2c.use_stdio' is
missed to set true and thus it wrongly applies UI quirks in the function
ui_quirks().

This commit forces to use stdio interface if slang is not supported, and
it can avoid to apply the UI quirks and show the correct metric header.

Before:

=================================================
      Shared Cache Line Distribution Pareto
=================================================
  -------------------------------------------------------------------------------
      0        0        0       99        0        0        0      0xaaaac17d6000
  -------------------------------------------------------------------------------
    0.00%    0.00%    6.06%    0.00%    0.00%    0.00%   0x20   N/A       0      0xaaaac17c25ac         0         0        43       375    18469         2  [.] 0x00000000000025ac  memstress         memstress[25ac]   0
    0.00%    0.00%   93.94%    0.00%    0.00%    0.00%   0x29   N/A       0      0xaaaac17c3e88         0         0       173       180      135         2  [.] 0x0000000000003e88  memstress         memstress[3e88]   0

After:

=================================================
      Shared Cache Line Distribution Pareto
=================================================
  -------------------------------------------------------------------------------
      0        0        0       99        0        0        0      0xaaaac17d6000
  -------------------------------------------------------------------------------
           0.00%    0.00%    6.06%    0.00%    0.00%    0.00%                0x20   N/A       0      0xaaaac17c25ac         0         0        43       375    18469         2  [.] 0x00000000000025ac  memstress         memstress[25ac]   0
           0.00%    0.00%   93.94%    0.00%    0.00%    0.00%                0x29   N/A       0      0xaaaac17c3e88         0         0       173       180      135         2  [.] 0x0000000000003e88  memstress         memstress[3e88]   0

Fixes: 5a1a99cd2e ("perf c2c report: Add main TUI browser")
Reported-by: Joe Mario <jmario@redhat.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220526145400.611249-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:58 -03:00
Namhyung Kim 831d06c8d1 perf test: Add a basic offcpu profiling test
$ sudo ./perf test -v offcpu
   88: perf record offcpu profiling tests                              :
  --- start ---
  test child forked, pid 685966
  Basic off-cpu test
  Basic off-cpu test [Success]
  test child finished with 0
  ---- end ----
  perf record offcpu profiling tests: Ok

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:58 -03:00
Namhyung Kim 685439a7a0 perf record: Add cgroup support for off-cpu profiling
This covers two different use cases.  The first one is cgroup
filtering given by -G/--cgroup option which controls the off-cpu
profiling for tasks in the given cgroups only.

The other use case is cgroup sampling which is enabled by
--all-cgroups option and it adds PERF_SAMPLE_CGROUP to the sample_type
to set the cgroup id of the task in the sample data.

Example output.

  $ sudo perf record -a --off-cpu --all-cgroups sleep 1

  $ sudo perf report --stdio -s comm,cgroup --call-graph=no
  ...
  # Samples: 144  of event 'offcpu-time'
  # Event count (approx.): 48452045427
  #
  # Children      Self  Command          Cgroup
  # ........  ........  ...............  ..........................................
  #
      61.57%     5.60%  Chrome_ChildIOT  /user.slice/user-657345.slice/user@657345.service/app.slice/...
      29.51%     7.38%  Web Content      /user.slice/user-657345.slice/user@657345.service/app.slice/...
      17.48%     1.59%  Chrome_IOThread  /user.slice/user-657345.slice/user@657345.service/app.slice/...
      16.48%     4.12%  pipewire-pulse   /user.slice/user-657345.slice/user@657345.service/session.slice/...
      14.48%     2.07%  perf             /user.slice/user-657345.slice/user@657345.service/app.slice/...
      14.30%     7.15%  CompositorTileW  /user.slice/user-657345.slice/user@657345.service/app.slice/...
      13.33%     6.67%  Timer            /user.slice/user-657345.slice/user@657345.service/app.slice/...
  ...

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:58 -03:00
Namhyung Kim b36888f71c perf record: Handle argument change in sched_switch
Recently sched_switch tracepoint added a new argument for prev_state,
but it's hard to handle the change in a BPF program.  Instead, we can
check the function prototype in BTF before loading the program.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Namhyung Kim 10742d0c07 perf record: Implement basic filtering for off-cpu
It should honor cpu and task filtering with -a, -C or -p, -t options.

Committer testing:

  # perf record --off-cpu --cpu 1 perf bench sched messaging -l 1000
  # Running 'sched/messaging' benchmark:
  # 20 sender and receiver processes per group
  # 10 groups == 400 processes run

       Total time: 1.722 [sec]
  [ perf record: Woken up 2 times to write data ]
  [ perf record: Captured and wrote 1.446 MB perf.data (7248 samples) ]
  #
  # perf script | head -20
              perf 97164 [001] 38287.696761:          1      cycles:  ffffffffb6070174 native_write_msr+0x4 (vmlinux)
              perf 97164 [001] 38287.696764:          1      cycles:  ffffffffb6070174 native_write_msr+0x4 (vmlinux)
              perf 97164 [001] 38287.696765:          9      cycles:  ffffffffb6070174 native_write_msr+0x4 (vmlinux)
              perf 97164 [001] 38287.696767:        212      cycles:  ffffffffb6070176 native_write_msr+0x6 (vmlinux)
              perf 97164 [001] 38287.696768:       5130      cycles:  ffffffffb6070176 native_write_msr+0x6 (vmlinux)
              perf 97164 [001] 38287.696770:     123063      cycles:  ffffffffb6e0011e syscall_return_via_sysret+0x38 (vmlinux)
              perf 97164 [001] 38287.696803:    2292748      cycles:  ffffffffb636c82d __fput+0xad (vmlinux)
           swapper     0 [001] 38287.702852:    1927474      cycles:  ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
            :97513 97513 [001] 38287.767207:    1172536      cycles:  ffffffffb612ff65 newidle_balance+0x5 (vmlinux)
           swapper     0 [001] 38287.769567:    1073081      cycles:  ffffffffb618216d ktime_get_mono_fast_ns+0xd (vmlinux)
            :97533 97533 [001] 38287.770962:     984460      cycles:  ffffffffb65b2900 selinux_socket_sendmsg+0x0 (vmlinux)
            :97540 97540 [001] 38287.772242:     883462      cycles:  ffffffffb6d0bf59 irqentry_exit_to_user_mode+0x9 (vmlinux)
           swapper     0 [001] 38287.773633:     741963      cycles:  ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
            :97552 97552 [001] 38287.774539:     606680      cycles:  ffffffffb62eda0a page_add_file_rmap+0x7a (vmlinux)
            :97556 97556 [001] 38287.775333:     502254      cycles:  ffffffffb634f964 get_obj_cgroup_from_current+0xc4 (vmlinux)
            :97561 97561 [001] 38287.776163:     427891      cycles:  ffffffffb61b1522 cgroup_rstat_updated+0x22 (vmlinux)
           swapper     0 [001] 38287.776854:     359030      cycles:  ffffffffb612fc5e load_balance+0x9ce (vmlinux)
            :97567 97567 [001] 38287.777312:     330371      cycles:  ffffffffb6a8d8d0 skb_set_owner_w+0x0 (vmlinux)
            :97566 97566 [001] 38287.777589:     311622      cycles:  ffffffffb614a7a8 native_queued_spin_lock_slowpath+0x148 (vmlinux)
            :97512 97512 [001] 38287.777671:     307851      cycles:  ffffffffb62e0f35 find_vma+0x55 (vmlinux)
  #
  # perf record --off-cpu --cpu 4 perf bench sched messaging -l 1000
  # Running 'sched/messaging' benchmark:
  # 20 sender and receiver processes per group
  # 10 groups == 400 processes run

       Total time: 1.613 [sec]
  [ perf record: Woken up 2 times to write data ]
  [ perf record: Captured and wrote 1.415 MB perf.data (6729 samples) ]
  # perf script | head -20
              perf 97650 [004] 38323.728036:          1      cycles:  ffffffffb6070174 native_write_msr+0x4 (vmlinux)
              perf 97650 [004] 38323.728040:          1      cycles:  ffffffffb6070174 native_write_msr+0x4 (vmlinux)
              perf 97650 [004] 38323.728041:          9      cycles:  ffffffffb6070174 native_write_msr+0x4 (vmlinux)
              perf 97650 [004] 38323.728042:        208      cycles:  ffffffffb6070176 native_write_msr+0x6 (vmlinux)
              perf 97650 [004] 38323.728044:       5026      cycles:  ffffffffb6070176 native_write_msr+0x6 (vmlinux)
              perf 97650 [004] 38323.728046:     119970      cycles:  ffffffffb6d0bebc syscall_exit_to_user_mode+0x1c (vmlinux)
              perf 97650 [004] 38323.728078:    2190103      cycles:            54b756 perf_tool__process_synth_event+0x16 (/home/acme/bin/perf)
           swapper     0 [004] 38323.783357:    1593139      cycles:  ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
           swapper     0 [004] 38323.785352:    1593139      cycles:  ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
           swapper     0 [004] 38323.797330:    1418936      cycles:  ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
           swapper     0 [004] 38323.802350:    1418936      cycles:  ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
           swapper     0 [004] 38323.806333:    1418936      cycles:  ffffffffb6761378 mwait_idle_with_hints.constprop.0+0x48 (vmlinux)
            :97996 97996 [004] 38323.807145:    1418936      cycles:      7f5db9be6917 [unknown] ([unknown])
            :97959 97959 [004] 38323.807730:    1445074      cycles:  ffffffffb6329d36 memcg_slab_post_alloc_hook+0x146 (vmlinux)
            :97959 97959 [004] 38323.808103:    1341584      cycles:  ffffffffb62fd90f get_page_from_freelist+0x112f (vmlinux)
            :97959 97959 [004] 38323.808451:    1227537      cycles:  ffffffffb65b2905 selinux_socket_sendmsg+0x5 (vmlinux)
            :97959 97959 [004] 38323.808768:    1184321      cycles:  ffffffffb6d1ba35 _raw_spin_lock_irqsave+0x15 (vmlinux)
            :97959 97959 [004] 38323.809073:    1153017      cycles:  ffffffffb6a8d92d skb_set_owner_w+0x5d (vmlinux)
            :97959 97959 [004] 38323.809402:    1126875      cycles:  ffffffffb6329c64 memcg_slab_post_alloc_hook+0x74 (vmlinux)
            :97959 97959 [004] 38323.809695:    1073248      cycles:  ffffffffb6e0001d entry_SYSCALL_64+0x1d (vmlinux)
  #

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Namhyung Kim edc41a1099 perf record: Enable off-cpu analysis with BPF
Add --off-cpu option to enable the off-cpu profiling with BPF.  It'd
use a bpf_output event and rename it to "offcpu-time".  Samples will
be synthesized at the end of the record session using data from a BPF
map which contains the aggregated off-cpu time at context switches.
So it needs root privilege to get the off-cpu profiling.

Each sample will have a separate user stacktrace so it will skip
kernel threads.  The sample ip will be set from the stacktrace and
other sample data will be updated accordingly.  Currently it only
handles some basic sample types.

The sample timestamp is set to a dummy value just not to bother with
other events during the sorting.  So it has a very big initial value
and increase it on processing each samples.

Good thing is that it can be used together with regular profiling like
cpu cycles.  If you don't want to that, you can use a dummy event to
enable off-cpu profiling only.

Example output:
  $ sudo perf record --off-cpu perf bench sched messaging -l 1000

  $ sudo perf report --stdio --call-graph=no
  # Total Lost Samples: 0
  #
  # Samples: 41K of event 'cycles'
  # Event count (approx.): 42137343851
  ...

  # Samples: 1K of event 'offcpu-time'
  # Event count (approx.): 587990831640
  #
  # Children      Self  Command          Shared Object       Symbol
  # ........  ........  ...............  ..................  .........................
  #
      81.66%     0.00%  sched-messaging  libc-2.33.so        [.] __libc_start_main
      81.66%     0.00%  sched-messaging  perf                [.] cmd_bench
      81.66%     0.00%  sched-messaging  perf                [.] main
      81.66%     0.00%  sched-messaging  perf                [.] run_builtin
      81.43%     0.00%  sched-messaging  perf                [.] bench_sched_messaging
      40.86%    40.86%  sched-messaging  libpthread-2.33.so  [.] __read
      37.66%    37.66%  sched-messaging  libpthread-2.33.so  [.] __write
       2.91%     2.91%  sched-messaging  libc-2.33.so        [.] __poll
  ...

As you can see it spent most of off-cpu time in read and write in
bench_sched_messaging().  The --call-graph=no was added just to make
the output concise here.

It uses perf hooks facility to control BPF program during the record
session rather than adding new BPF/off-cpu specific calls.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Namhyung Kim 303ead45c4 perf report: Do not extend sample type of bpf-output event
Currently evsel__new_idx() sets more sample_type bits when it finds a
BPF-output event.  But it should honor what's recorded in the perf
data file rather than blindly sets the bits.  Otherwise it could lead
to a parse error when it recorded with a modified sample_type.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20220518224725.742882-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Claire Jensen 7473ee56db perf test: Add checking for perf stat CSV output.
Counts expected fields for various commands. No testing added for
summary mode since it is broken.

An example of the summary output is:

         summary,263831,,instructions:u,1435072,100.0,0.46,insn per cycle
,,,,,1.37,stalled cycles per insn

This should be:

         summary,263831,,instructions:u,1435072,100.0,0.46,insn per cycle
         summary,,,,,,1.37,stalled cycles per insn

The output has 7 fields when it should have 8. Additionally, the newline
spacing is wrong, so it was excluded from testing until a fix is made.

Committer testing:

  $ perf test "perf stat CSV output"
   88: perf stat CSV output linter                                     : Ok
  $

  $ perf test -v "perf stat CSV output"
  Couldn't bump rlimit(MEMLOCK), failures may take place when creating BPF maps, etc
   88: perf stat CSV output linter                                     :
  --- start ---
  test child forked, pid 2622839
  Checking CSV output: no args [Success]
  Checking CSV output: system wide [Skip] paranoid and not root
  Checking CSV output: system wide [Skip] paranoid and not root
  Checking CSV output: interval [Success]
  Checking CSV output: event [Success]
  Checking CSV output: per core [Skip] paranoid and not root
  Checking CSV output: per thread [Skip] paranoid and not root
  Checking CSV output: per die [Skip] paranoid and not root
  Checking CSV output: per node [Skip] paranoid and not root
  Checking CSV output: per socket [Skip] paranoid and not root
  test child finished with 0
  ---- end ----
  perf stat CSV output linter: Ok
  $

I did a s/parnoia/paranoid/g on the [Skip] lines.

Signed-off-by: Claire Jensen <cjense@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alyssa Ross <hi@alyssa.is>
Cc: Claire Jensen <clairej735@gmail.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
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: Like Xu <likexu@tencent.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220525053814.3265216-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Adrian Hunter d3345fecf9 perf stat: Add requires_cpu flag for uncore
Uncore events require a CPU i.e. it cannot be -1.

The evsel system_wide flag is intended for events that should be on every
CPU, which does not make sense for uncore events because uncore events do
not map one-to-one with CPUs.

These 2 requirements are not exactly the same, so introduce a new flag
'requires_cpu' for the uncore case.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-13-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Adrian Hunter 7be1fedd2a perf tools: Allow all_cpus to be a superset of user_requested_cpus
To support collection of system-wide events with user requested CPUs,
all_cpus must be a superset of user_requested_cpus.

In order to support all_cpus to be a superset of user_requested_cpus,
all_cpus must be used instead of user_requested_cpus when dealing with CPUs
of all events instead of CPUs of requested events.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-10-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Adrian Hunter 7d189cadbe perf intel-pt: Track sideband system-wide when needed
User space tasks can migrate between CPUs, so when tracing selected CPUs,
sideband for all CPUs is still needed. This is in preparation for allowing
system-wide events on all CPUs while the user requested events are on only
user requested CPUs.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-9-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Adrian Hunter e665c82a76 perf intel-pt: Use evlist__add_dummy_on_all_cpus() for switch tracking
Use evlist__add_dummy_on_all_cpus() for switch tracking in preparation for
allowing system-wide events on all CPUs while the user requested events are
on only user requested CPUs.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Adrian Hunter 921e3be5a5 perf record: Use evlist__add_dummy_on_all_cpus() in record__config_text_poke()
Use evlist__add_dummy_on_all_cpus() in record__config_text_poke() in
preparation for allowing system-wide events on all CPUs while the user
requested events are on only user requested CPUs.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Adrian Hunter 126d68fdca perf evlist: Add evlist__add_dummy_on_all_cpus()
Add evlist__add_dummy_on_all_cpus() to enable creating a system-wide dummy
event that sets up the system-wide maps before map propagation.

For convenience, add evlist__add_aux_dummy() so that the logic can be used
whether or not the event needs to be system-wide.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Adrian Hunter 8294489914 perf evlist: Factor out evlist__dummy_event()
Factor out evlist__dummy_event() so it can be reused.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Adrian Hunter 84bd5aba88 perf auxtrace: Remove auxtrace_mmap_params__set_idx() per_cpu parameter
Remove auxtrace_mmap_params__set_idx() per_cpu parameter because it isn't
needed.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:57 -03:00
Adrian Hunter d01508f2df perf auxtrace: Add mmap_needed to auxtrace_mmap_params
Add mmap_needed to auxtrace_mmap_params.

Currently an auxtrace mmap is always attempted even if the event is not an
auxtrace event. That works because, when AUX area tracing, there is always
an auxtrace event first for every mmap. Prepare for that not being the
case, which it won't be when sideband tracking events are allowed on
all CPUs even when auxtrace is limited to selected CPUs.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:56 -03:00
Adrian Hunter 1097b38fb7 perf intel-pt: Add a test for system-wide side band
Add a test for system-wide side band even when tracing selected CPUs.

The test fails before the patches up to "perf tools: Allow system-wide
events to keep their own CPUs" are applied, passes afterwards.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:56 -03:00
Arnaldo Carvalho de Melo df76e00383 perf build: Stop using __weak bpf_map_create() to handle older libbpf versions
By adding a feature test for bpf_map_create() and providing a fallback if
it isn't present in older versions of libbpf.

This also fixes the build with torvalds/master at this point:

  $ git log --oneline -5 torvalds/master
  babf0bb978 (torvalds/master) Merge tag 'xfs-5.19-for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
  e375780b63 Merge tag 'fsnotify_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
  8b728edc5b Merge tag 'fs_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
  3f306ea2e1 Merge tag 'dma-mapping-5.19-2022-05-25' of git://git.infradead.org/users/hch/dma-mapping
  fbe86daca0 Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
  $

Coping with:

  $ git log --oneline -2 d16495a982
  d16495a982 libbpf: remove bpf_create_map*() APIs
  e2371b1632 libbpf: start 1.0 development cycle
  $

As the __weak function fails to build as it calls the now removed
bpf_create_map() API.

Testing:

  $ rpm -q libbpf-devel
  libbpf-devel-0.4.0-2.fc35.x86_64
  $
  $ make -C tools/perf BUILD_BPF_SKEL=1 LIBBPF_DYNAMIC=1 O=/tmp/build/perf install-bin
  $ cat /tmp/build/perf/feature/test-libbpf-bpf_map_create.make.output
  test-libbpf-bpf_map_create.c: In function ‘main’:
  test-libbpf-bpf_map_create.c:6:16: error: implicit declaration of function ‘bpf_map_create’; did you mean ‘bpf_map_freeze’? [-Werror=implicit-function-declaration]
      6 |         return bpf_map_create(0 /* map_type */, NULL /* map_name */, 0, /* key_size */,
        |                ^~~~~~~~~~~~~~
        |                bpf_map_freeze
  test-libbpf-bpf_map_create.c:6:87: error: expected expression before ‘,’ token
      6 |         return bpf_map_create(0 /* map_type */, NULL /* map_name */, 0, /* key_size */,
        |                                                                                       ^
  cc1: all warnings being treated as errors
  $
  $ objdump -dS /tmp/build/perf/perf | grep '<bpf_map_create>:' -A20
  000000000058b290 <bpf_map_create>:
  {
    58b290:	55                   	push   %rbp
    58b291:	48 89 e5             	mov    %rsp,%rbp
    58b294:	48 83 ec 10          	sub    $0x10,%rsp
    58b298:	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax
    58b29f:	00 00
    58b2a1:	48 89 45 f8          	mov    %rax,-0x8(%rbp)
    58b2a5:	31 c0                	xor    %eax,%eax
  	return bpf_create_map(map_type, key_size, value_size, max_entries, 0);
    58b2a7:	48 8b 45 f8          	mov    -0x8(%rbp),%rax
    58b2ab:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
    58b2b2:	00 00
    58b2b4:	75 10                	jne    58b2c6 <bpf_map_create+0x36>
  }
    58b2b6:	c9                   	leave
    58b2b7:	89 d6                	mov    %edx,%esi
    58b2b9:	89 ca                	mov    %ecx,%edx
    58b2bb:	44 89 c1             	mov    %r8d,%ecx
  	return bpf_create_map(map_type, key_size, value_size, max_entries, 0);
    58b2be:	45 31 c0             	xor    %r8d,%r8d
  $

Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/linux-perf-users/Yo+XvQNKL4K5khl2@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 12:36:56 -03:00
Jiri Olsa 982be47751 perf build: Stop using __weak btf__raw_data() to handle older libbpf versions
By adding a feature test for btf__raw_data() and providing a fallback if
it isn't present in older versions of libbpf.

Committer testing:

  $ rpm -q libbpf-devel
  libbpf-devel-0.4.0-2.fc35.x86_64
  $ make -C tools/perf LIBBPF_DYNAMIC=1 O=/tmp/build/perf install-bin
  $ cat /tmp/build/perf/feature/test-libbpf-btf__raw_data.make.output
  test-libbpf-btf__raw_data.c: In function ‘main’:
  test-libbpf-btf__raw_data.c:6:9: error: implicit declaration of function ‘btf__raw_data’; did you mean ‘btf__get_raw_data’? [-Werror=implicit-function-declaration]
      6 |         btf__raw_data(NULL /* btf_ro */, NULL /* size */);
        |         ^~~~~~~~~~~~~
        |         btf__get_raw_data
  cc1: all warnings being treated as errors
  $ objdump -dS /tmp/build/perf/perf | grep '<btf__raw_data>:' -A20
  00000000005b3050 <btf__raw_data>:
  {
    5b3050:	55                   	push   %rbp
    5b3051:	48 89 e5             	mov    %rsp,%rbp
    5b3054:	48 83 ec 10          	sub    $0x10,%rsp
    5b3058:	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax
    5b305f:	00 00
    5b3061:	48 89 45 f8          	mov    %rax,-0x8(%rbp)
    5b3065:	31 c0                	xor    %eax,%eax
	  return btf__get_raw_data(btf_ro, size);
    5b3067:	48 8b 45 f8          	mov    -0x8(%rbp),%rax
    5b306b:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
    5b3072:	00 00
    5b3074:	75 06                	jne    5b307c <btf__raw_data+0x2c>
  }
    5b3076:	c9                   	leave
	  return btf__get_raw_data(btf_ro, size);
    5b3077:	e9 14 99 e5 ff       	jmp    40c990 <btf__get_raw_data@plt>
    5b307c:	e8 af a7 e5 ff       	call   40d830 <__stack_chk_fail@plt>
    5b3081:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
    5b3088:	00 00 00 00
    $

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/linux-perf-users/YozLKby7ITEtchC9@krava
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 11:02:02 -03:00
Jiri Olsa 739c9180cf perf build: Stop using __weak bpf_object__next_map() to handle older libbpf versions
By adding a feature test for bpf_object__next_map() and providing a fallback if
it isn't present in older versions of libbpf.

Committer testing:

  $ rpm -q libbpf-devel
  libbpf-devel-0.4.0-2.fc35.x86_64
  $ make -C tools/perf LIBBPF_DYNAMIC=1 O=/tmp/build/perf install-bin
  $ cat /tmp/build/perf/feature/test-libbpf-bpf_object__next_map.make.output
  test-libbpf-bpf_object__next_map.c: In function ‘main’:
  test-libbpf-bpf_object__next_map.c:6:9: error: implicit declaration of function ‘bpf_object__next_map’; did you mean ‘bpf_object__next’? [-Werror=implicit-function-declaration]
      6 |         bpf_object__next_map(NULL /* obj */, NULL /* prev */);
        |         ^~~~~~~~~~~~~~~~~~~~
        |         bpf_object__next
    cc1: all warnings being treated as errors
  $
  $ objdump -dS /tmp/build/perf/perf | grep '<bpf_object__next_map>:' -A20
  00000000005b2e00 <bpf_object__next_map>:
  {
    5b2e00:	55                   	push   %rbp
    5b2e01:	48 89 e5             	mov    %rsp,%rbp
    5b2e04:	48 83 ec 10          	sub    $0x10,%rsp
    5b2e08:	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax
    5b2e0f:	00 00
    5b2e11:	48 89 45 f8          	mov    %rax,-0x8(%rbp)
    5b2e15:	31 c0                	xor    %eax,%eax
	  return bpf_map__next(prev, obj);
    5b2e17:	48 8b 45 f8          	mov    -0x8(%rbp),%rax
    5b2e1b:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
    5b2e22:	00 00
    5b2e24:	75 0f                	jne    5b2e35 <bpf_object__next_map+0x35>
  }
    5b2e26:	c9                   	leave
    5b2e27:	49 89 f8             	mov    %rdi,%r8
    5b2e2a:	48 89 f7             	mov    %rsi,%rdi
	  return bpf_map__next(prev, obj);
    5b2e2d:	4c 89 c6             	mov    %r8,%rsi
    5b2e30:	e9 cb b1 e5 ff       	jmp    40e000 <bpf_map__next@plt>
  $

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/linux-perf-users/YozLKby7ITEtchC9@krava
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 11:02:02 -03:00
Jiri Olsa 8916d72554 perf build: Stop using __weak bpf_object__next_program() to handle older libbpf versions
By adding a feature test for bpf_object__next_program() and providing a fallback if
it isn't present in older versions of libbpf.

Committer testing:

  $ rpm -q libbpf-devel
  libbpf-devel-0.4.0-2.fc35.x86_64
  $ make -C tools/perf LIBBPF_DYNAMIC=1 O=/tmp/build/perf install-bin
  $ cat /tmp/build/perf/feature/test-libbpf-bpf_object__next_program.make.output
  test-libbpf-bpf_object__next_program.c: In function ‘main’:
  test-libbpf-bpf_object__next_program.c:6:9: error: implicit declaration of function ‘bpf_object__next_program’; did you mean ‘bpf_object__unpin_programs’? [-Werror=implicit-function-declaration]
      6 |         bpf_object__next_program(NULL /* obj */, NULL /* prev */);
        |         ^~~~~~~~~~~~~~~~~~~~~~~~
        |         bpf_object__unpin_programs
  cc1: all warnings being treated as errors
  $
  $ objdump -dS /tmp/build/perf/perf | grep '<bpf_object__next_program>:' -A20
  00000000005b2dc0 <bpf_object__next_program>:
  {
    5b2dc0:	55                   	push   %rbp
    5b2dc1:	48 89 e5             	mov    %rsp,%rbp
    5b2dc4:	48 83 ec 10          	sub    $0x10,%rsp
    5b2dc8:	64 48 8b 04 25 28 00 	mov    %fs:0x28,%rax
    5b2dcf:	00 00
    5b2dd1:	48 89 45 f8          	mov    %rax,-0x8(%rbp)
    5b2dd5:	31 c0                	xor    %eax,%eax
	  return bpf_program__next(prev, obj);
    5b2dd7:	48 8b 45 f8          	mov    -0x8(%rbp),%rax
    5b2ddb:	64 48 2b 04 25 28 00 	sub    %fs:0x28,%rax
    5b2de2:	00 00
    5b2de4:	75 0f                	jne    5b2df5 <bpf_object__next_program+0x35>
  }
    5b2de6:	c9                   	leave
    5b2de7:	49 89 f8             	mov    %rdi,%r8
    5b2dea:	48 89 f7             	mov    %rsi,%rdi
	  return bpf_program__next(prev, obj);
    5b2ded:	4c 89 c6             	mov    %r8,%rsi
    5b2df0:	e9 3b b4 e5 ff       	jmp    40e230 <bpf_program__next@plt>
    $

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/linux-perf-users/YozLKby7ITEtchC9@krava
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 11:02:02 -03:00
Jiri Olsa 5c83eff381 perf build: Stop using __weak bpf_prog_load() to handle older libbpf versions
By adding a feature test for bpf_prog_load() and providing a fallback if
it isn't present in older versions of libbpf.

Committer testing:

  $ rpm -q libbpf-devel
  libbpf-devel-0.4.0-2.fc35.x86_64
  $ make -C tools/perf LIBBPF_DYNAMIC=1 O=/tmp/build/perf install-bin
  $ cat /tmp/build/perf/feature/test-libbpf-bpf_prog_load.make.output
  test-libbpf-bpf_prog_load.c: In function ‘main’:
  test-libbpf-bpf_prog_load.c:6:16: error: implicit declaration of function ‘bpf_prog_load’ [-Werror=implicit-function-declaration]
      6 |         return bpf_prog_load(0 /* prog_type */, NULL /* prog_name */,
        |                ^~~~~~~~~~~~~
  cc1: all warnings being treated as errors
  $

  $ objdump -dS /tmp/build/perf/perf | grep '<bpf_prog_load>:' -A20
  00000000005b2d70 <bpf_prog_load>:
  {
    5b2d70:	55                   	push   %rbp
    5b2d71:	48 89 ce             	mov    %rcx,%rsi
    5b2d74:	4c 89 c8             	mov    %r9,%rax
    5b2d77:	49 89 d2             	mov    %rdx,%r10
    5b2d7a:	4c 89 c2             	mov    %r8,%rdx
    5b2d7d:	48 89 e5             	mov    %rsp,%rbp
    5b2d80:	48 83 ec 18          	sub    $0x18,%rsp
    5b2d84:	64 48 8b 0c 25 28 00 	mov    %fs:0x28,%rcx
    5b2d8b:	00 00
    5b2d8d:	48 89 4d f8          	mov    %rcx,-0x8(%rbp)
    5b2d91:	31 c9                	xor    %ecx,%ecx
  	return bpf_load_program(prog_type, insns, insn_cnt, license,
    5b2d93:	41 8b 49 5c          	mov    0x5c(%r9),%ecx
    5b2d97:	51                   	push   %rcx
    5b2d98:	4d 8b 49 60          	mov    0x60(%r9),%r9
    5b2d9c:	4c 89 d1             	mov    %r10,%rcx
    5b2d9f:	44 8b 40 1c          	mov    0x1c(%rax),%r8d
    5b2da3:	e8 f8 aa e5 ff       	call   40d8a0 <bpf_load_program@plt>
  }
  $

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/linux-perf-users/YozLKby7ITEtchC9@krava
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-26 11:02:02 -03:00
Adrian Hunter 5d2b6bc3a6 perf intel-pt: Add guest_code support
A common case for KVM test programs is that the test program acts as the
hypervisor, creating, running and destroying the virtual machine, and
providing the guest object code from its own object code. In this case,
the VM is not running an OS, but only the functions loaded into it by the
hypervisor test program, and conveniently, loaded at the same virtual
addresses.

To support that, a new option "--guest-code" has been added in
previous patches.

In this patch, add support also to Intel PT.

In particular, ensure guest_code thread is set up before attempting to
walk object code or synthesize samples.

Example:

 # perf record --kcore -e intel_pt/cyc/ -- tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test
 [ perf record: Woken up 1 times to write data ]
 [ perf record: Captured and wrote 0.280 MB perf.data ]
 # perf script --guest-code --itrace=bep --ns -F-period,+addr,+flags
 [SNIP]
   tsc_msrs_test 18436 [007] 10897.962087733:      branches:   call                   ffffffffc13b2ff5 __vmx_vcpu_run+0x15 (vmlinux) => ffffffffc13b2f50 vmx_update_host_rsp+0x0 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962087733:      branches:   return                 ffffffffc13b2f5d vmx_update_host_rsp+0xd (vmlinux) => ffffffffc13b2ffa __vmx_vcpu_run+0x1a (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962087733:      branches:   call                   ffffffffc13b303b __vmx_vcpu_run+0x5b (vmlinux) => ffffffffc13b2f80 vmx_vmenter+0x0 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962087836:      branches:   vmentry                ffffffffc13b2f82 vmx_vmenter+0x2 (vmlinux) =>                0 [unknown] ([unknown])
   [guest/18436] 18436 [007] 10897.962087836:      branches:   vmentry                               0 [unknown] ([unknown]) =>           402c81 guest_code+0x131 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test)
   [guest/18436] 18436 [007] 10897.962087836:      branches:   call                             402c81 guest_code+0x131 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test) =>           40dba0 ucall+0x0 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test)
   [guest/18436] 18436 [007] 10897.962088248:      branches:   vmexit                           40dba0 ucall+0x0 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test) =>                0 [unknown] ([unknown])
   tsc_msrs_test 18436 [007] 10897.962088248:      branches:   vmexit                                0 [unknown] ([unknown]) => ffffffffc13b2fa0 vmx_vmexit+0x0 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962088248:      branches:   jmp                    ffffffffc13b2fa0 vmx_vmexit+0x0 (vmlinux) => ffffffffc13b2fd2 vmx_vmexit+0x32 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962088256:      branches:   return                 ffffffffc13b2fd2 vmx_vmexit+0x32 (vmlinux) => ffffffffc13b3040 __vmx_vcpu_run+0x60 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962088270:      branches:   return                 ffffffffc13b30b6 __vmx_vcpu_run+0xd6 (vmlinux) => ffffffffc13b2f2e vmx_vcpu_enter_exit+0x4e (vmlinux)
 [SNIP]
   tsc_msrs_test 18436 [007] 10897.962089321:      branches:   call                   ffffffffc13b2ff5 __vmx_vcpu_run+0x15 (vmlinux) => ffffffffc13b2f50 vmx_update_host_rsp+0x0 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962089321:      branches:   return                 ffffffffc13b2f5d vmx_update_host_rsp+0xd (vmlinux) => ffffffffc13b2ffa __vmx_vcpu_run+0x1a (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962089321:      branches:   call                   ffffffffc13b303b __vmx_vcpu_run+0x5b (vmlinux) => ffffffffc13b2f80 vmx_vmenter+0x0 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962089424:      branches:   vmentry                ffffffffc13b2f82 vmx_vmenter+0x2 (vmlinux) =>                0 [unknown] ([unknown])
   [guest/18436] 18436 [007] 10897.962089424:      branches:   vmentry                               0 [unknown] ([unknown]) =>           40dba0 ucall+0x0 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test)
   [guest/18436] 18436 [007] 10897.962089701:      branches:   jmp                              40dc1b ucall+0x7b (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test) =>           40dc39 ucall+0x99 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test)
   [guest/18436] 18436 [007] 10897.962089701:      branches:   jcc                              40dc3c ucall+0x9c (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test) =>           40dc20 ucall+0x80 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test)
   [guest/18436] 18436 [007] 10897.962089701:      branches:   jcc                              40dc3c ucall+0x9c (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test) =>           40dc20 ucall+0x80 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test)
   [guest/18436] 18436 [007] 10897.962089701:      branches:   jcc                              40dc37 ucall+0x97 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test) =>           40dc50 ucall+0xb0 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test)
   [guest/18436] 18436 [007] 10897.962089878:      branches:   vmexit                           40dc55 ucall+0xb5 (/home/ahunter/git/work/tools/testing/selftests/kselftest_install/kvm/tsc_msrs_test) =>                0 [unknown] ([unknown])
   tsc_msrs_test 18436 [007] 10897.962089878:      branches:   vmexit                                0 [unknown] ([unknown]) => ffffffffc13b2fa0 vmx_vmexit+0x0 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962089878:      branches:   jmp                    ffffffffc13b2fa0 vmx_vmexit+0x0 (vmlinux) => ffffffffc13b2fd2 vmx_vmexit+0x32 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962089887:      branches:   return                 ffffffffc13b2fd2 vmx_vmexit+0x32 (vmlinux) => ffffffffc13b3040 __vmx_vcpu_run+0x60 (vmlinux)
   tsc_msrs_test 18436 [007] 10897.962089901:      branches:   return                 ffffffffc13b30b6 __vmx_vcpu_run+0xd6 (vmlinux) => ffffffffc13b2f2e vmx_vcpu_enter_exit+0x4e (vmlinux)
 [SNIP]

 # perf kvm --guest-code --guest --host report -i perf.data --stdio | head -20

 # To display the perf.data header info, please use --header/--header-only options.
 #
 #
 # Total Lost Samples: 0
 #
 # Samples: 12  of event 'instructions'
 # Event count (approx.): 2274583
 #
 # Children      Self  Command        Shared Object         Symbol
 # ........  ........  .............  ....................  ...........................................
 #
    54.70%     0.00%  tsc_msrs_test  [kernel.vmlinux]      [k] entry_SYSCALL_64_after_hwframe
            |
            ---entry_SYSCALL_64_after_hwframe
               do_syscall_64
               |
               |--29.44%--syscall_exit_to_user_mode
               |          exit_to_user_mode_prepare
               |          task_work_run
               |          __fput

For more information about Perf tools support for Intel® Processor Trace
refer:

  https://perf.wiki.kernel.org/index.php/Perf_tools_support_for_Intel%C2%AE_Processor_Trace

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220517131011.6117-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:19:24 -03:00
Adrian Hunter 512a09fb96 perf kvm report: Add guest_code support
Add an option to indicate that guest code can be found in the hypervisor
process.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220517131011.6117-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:19:15 -03:00
Adrian Hunter 5b20814460 perf script: Add guest_code support
Add an option to indicate that guest code can be found in the hypervisor
process.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220517131011.6117-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:19:04 -03:00
Adrian Hunter 096fc36180 perf tools: Add guest_code support
A common case for KVM test programs is that the test program acts as the
hypervisor, creating, running and destroying the virtual machine, and
providing the guest object code from its own object code. In this case,
the VM is not running an OS, but only the functions loaded into it by the
hypervisor test program, and conveniently, loaded at the same virtual
addresses.

Normally to resolve addresses, MMAP events are needed to map addresses
back to the object code and debug symbols for that object code.

Currently, there is no way to get such mapping information from guests
but, in the scenario described above, the guest has the same mappings
as the hypervisor, so support for that scenario can be achieved.

To support that, copy the host thread's maps to the guest thread's maps.
Note, we do not discover the guest until we encounter a guest event,
which works well because it is not until then that we know that the host
thread's maps have been set up.

Typically the main function for the guest object code is called
"guest_code", hence the name chosen for this feature. Note, that is just a
convention, the function could be named anything, and the tools do not
care.

This is primarily aimed at supporting Intel PT, or similar, where trace
data can be recorded for a guest. Refer to the final patch in this series
"perf intel-pt: Add guest_code support" for an example.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220517131011.6117-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:18:38 -03:00
Adrian Hunter c98e064d54 perf tools: Factor out thread__set_guest_comm()
Factor out thread__set_guest_comm() so it can be reused.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220517131011.6117-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:18:27 -03:00
Adrian Hunter a088031c49 perf tools: Add machine to machines back pointer
When dealing with guest machines, it can be necessary to get a reference
to the host machine. Add a machines pointer to struct machine to make that
possible.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220517131011.6117-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:18:06 -03:00
Nick Forrington 67322d13fe perf vendors events arm64: Update Cortex A57/A72
Categorise and add missing PMU events for Cortex-A57/A72, based on:
https://github.com/ARM-software/data/blob/master/pmu/cortex-a57.json
https://github.com/ARM-software/data/blob/master/pmu/cortex-a72.json

These contain the same events, and are based on the Arm Technical
Reference Manuals for Cortex-A57 and Cortex-A72.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220517135805.313184-2-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:16:41 -03:00
Nick Forrington 2531169eea perf vendors events arm64: Arm Neoverse E1
Add PMU events for Arm Neoverse E1
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/neoverse-e1.json

which is based on PMU event descriptions from the Arm Neoverse E1 Technical
Reference Manual.

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-14-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:15:33 -03:00
Nick Forrington 7227fed425 perf vendors events arm64: Arm Cortex-X2
Add PMU events for Arm Cortex-X2
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-x2.json

which is based on PMU event descriptions from the Arm Cortex-X2 Technical
Reference Manual.

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-13-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:15:25 -03:00
Nick Forrington 30bb078aa0 perf vendors events arm64: Arm Cortex-X1
Add PMU events for Arm Cortex-X1
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-x1.json

which is based on PMU event descriptions from the Arm Cortex-X1 Technical
Reference Manual.

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-12-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:15:17 -03:00
Nick Forrington cceb5f9713 perf vendors events arm64: Arm Cortex-A710
Add PMU events for Arm Cortex-A710
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-a710.json

which is based on PMU event descriptions from the Arm Cortex-A710 Technical
Reference Manual.

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-11-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:15:09 -03:00
Nick Forrington cf57baf007 perf vendors events arm64: Arm Cortex-A78
Add PMU events for Arm Cortex-A78
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-a78.json

which is based on PMU event descriptions from the Arm Cortex-A78 Technical
Reference Manual.

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-10-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:14:57 -03:00
Nick Forrington 45bd52fae0 perf vendors events arm64: Arm Cortex-A77
Add PMU events for Arm Cortex-A77
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-a77.json

which is based on PMU event descriptions from the Arm Cortex-A77 Technical
Reference Manual.

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-9-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:14:47 -03:00
Nick Forrington 387b5a8db3 perf vendors events arm64: Arm Cortex-A75
Add PMU events for Arm Cortex-A75
Add corresponding common events
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-a75.json

which is based on PMU event descriptions from the Arm Cortex-A75 Technical
Reference Manual.

Common event data based on:
https://github.com/ARM-software/data/blob/master/pmu/common_armv9.json

which is based on PMU event descriptions found in the Arm Architecture
Reference Manual:
https://developer.arm.com/documentation/ddi0487/

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-8-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:14:38 -03:00
Nick Forrington 64a091c67a perf vendors events arm64: Arm Cortex-A73
Add PMU events for Arm Cortex-A73
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-a73.json

which is based on PMU event descriptions from the Arm Cortex-A73 Technical
Reference Manual.

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-7-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:14:16 -03:00
Nick Forrington 6951dee812 perf vendors events arm64: Arm Cortex-A65
Add PMU events for Arm Cortex-A65
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-a65.json

which is based on PMU event descriptions from the Arm Cortex-A65 Technical
Reference Manual.

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-6-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:14:07 -03:00
Nick Forrington 3935c302c2 perf vendors events arm64: Arm Cortex-A510
Add PMU events for Arm Cortex-A510
Add corresponding common events
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-a510.json

which is based on PMU event descriptions from the Arm Cortex-A510 Technical
Reference Manual.

Common event data based on:
https://github.com/ARM-software/data/blob/master/pmu/common_armv9.json

which is based on PMU event descriptions found in the Arm Architecture
Reference Manual:
https://developer.arm.com/documentation/ddi0487/

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-5-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:13:58 -03:00
Nick Forrington fbb6b31aa8 perf vendors events arm64: Arm Cortex-A55
Add PMU events for Arm Cortex-A55
Add corresponding common events
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-a55.json

which is based on PMU event descriptions from the Arm Cortex-A55 Technical
Reference Manual.

Common event data based on:
https://github.com/ARM-software/data/blob/master/pmu/common_armv9.json

which is based on PMU event descriptions found in the Arm Architecture
Reference Manual:
https://developer.arm.com/documentation/ddi0487/

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-4-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:13:49 -03:00
Nick Forrington b5d03547f6 perf vendors events arm64: Arm Cortex-A35
Add PMU events for Arm Cortex-A35
Update mapfile.csv

Event data based on:
https://github.com/ARM-software/data/tree/master/pmu/cortex-a35.json

which is based on PMU event descriptions from the Arm Cortex-A35 Technical
Reference Manual.

Mapping data (for mapfile.csv) based on:
https://github.com/ARM-software/data/blob/master/cpus.json

which is based on Main ID Register (MIDR) information found in the Arm
Technical Reference Manuals for individual CPUs.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Nick Forrington <nick.forrington@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220520181455.340344-3-nick.forrington@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-23 10:13:39 -03:00