linux.git/tools/include/uapi/linux/perf_event.h, branch v6.6.131

tools include UAPI: Sync uapi/linux/perf_event.h with the kernel sources

2023-04-10T22:25:12+00:00

... to bring PERF_MEM_LVLNUM_UNC definition to userspace

Signed-off-by: Ravi Bangoria 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Ananth Narayan 
Cc: Ian Rogers 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Kajol Jain 
Cc: Kan Liang 
Cc: Leo Yan 
Cc: Peter Zijlstra 
Cc: Sandipan Das 
Cc: Santosh Shukla 
Cc: Stephane Eranian 
Link: https://lore.kernel.org/r/20230407112459.548-5-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync linux/perf_event.h with the kernel sources

2023-03-06T20:21:23+00:00

To pick up the changes in:

  09519ec3b19e4144 ("perf: Add perf_event_attr::config3")

The patches for the tooling side will come later.

This addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
  diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h

Cc: Adrian Hunter 
Cc: Ian Rogers 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Rob Herring 
Cc: Will Deacon 
Link: https://lore.kernel.org/lkml/ZAZLYmDjWjSItWOq@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync linux/perf_event.h with the kernel sources

2022-10-26T13:45:16+00:00

To pick the changes in:

  cfef80bad4cf79cd ("perf/uapi: Define PERF_MEM_SNOOPX_PEER in kernel header file")
  ee3e88dfec23153d ("perf/mem: Introduce PERF_MEM_LVLNUM_{EXTN_MEM|IO}")
  b4e12b2d70fd9ecc ("perf: Kill __PERF_SAMPLE_CALLCHAIN_EARLY")

There is a kernel patch pending that renames PERF_MEM_LVLNUM_EXTN_MEM to
PERF_MEM_LVLNUM_CXL, tooling this time is ahead of the kernel :-)

This thus partially addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
  diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h

Cc: Adrian Hunter 
Cc: Ian Rogers 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Ravi Bangoria 
Link: https://lore.kernel.org/lkml/Y1k53KMdzypmU0WS@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync include/uapi/linux/perf_event.h header with the kernel

2022-10-06T19:24:37+00:00

Two new fields for mem_lvl_num has been introduced: PERF_MEM_LVLNUM_IO
and PERF_MEM_LVLNUM_CXL which are required to support perf mem/c2c on
AMD platform.

Signed-off-by: Ravi Bangoria 
Acked-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Ali Saidi 
Cc: Ananth Narayan 
Cc: Andi Kleen 
Cc: Borislav Petkov 
Cc: Dave Hansen 
Cc: H. Peter Anvin 
Cc: Ian Rogers 
Cc: Ingo Molnar 
Cc: Joe Mario 
Cc: Kan Liang 
Cc: Kim Phillips 
Cc: Leo Yan 
Cc: Mark Rutland 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Sandipan Das 
Cc: Santosh Shukla 
Cc: Stephane Eranian 
Cc: Thomas Gleixner 
Cc: x86@kernel.org
Link: https://lore.kernel.org/r/20221006153946.7816-2-ravi.bangoria@amd.com
Signed-off-by: Arnaldo Carvalho de Melo

perf branch: Add PERF_BR_NEW_ARCH_[N] map for BRBE on arm64 platform

2022-10-04T11:55:20+00:00

This updates the perf tool with arch specific branch type classification
used for BRBE on arm64 platform as added in the kernel earlier.

Signed-off-by: Anshuman Khandual 
Cc: Alexander Shishkin 
Cc: Catalin Marinas 
Cc: Ingo Molnar 
Cc: James Clark 
Cc: Jiri Olsa 
Cc: Mark Rutland 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Robin Murphy 
Cc: Suzuki Poulouse 
Cc: Thomas Gleixner 
Cc: Will Deacon 
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220824044822.70230-9-anshuman.khandual@arm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf branch: Add branch privilege information request flag

2022-10-04T11:55:20+00:00

This updates the perf tools with branch privilege information request flag
i.e PERF_SAMPLE_BRANCH_PRIV_SAVE that has been added earlier in the kernel.
This also updates 'perf record' documentation, branch_modes[], and generic
branch privilege level enumeration as added earlier in the kernel.

Signed-off-by: Anshuman Khandual 
Cc: Alexander Shishkin 
Cc: Catalin Marinas 
Cc: Ingo Molnar 
Cc: James Clark 
Cc: Jiri Olsa 
Cc: Mark Rutland 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Robin Murphy 
Cc: Suzuki Poulouse 
Cc: Thomas Gleixner 
Cc: Will Deacon 
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220824044822.70230-8-anshuman.khandual@arm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf branch: Extend branch type classification

2022-10-04T11:55:20+00:00

This updates the perf tool with generic branch type classification with new
ABI extender place holder i.e PERF_BR_EXTEND_ABI, the new 4 bit branch type
field i.e perf_branch_entry.new_type, new generic page fault related branch
types and some arch specific branch types as added earlier in the kernel.

Committer note:

Add an extra entry to the branch_type_name array to cope with
PERF_BR_EXTEND_ABI, to address build warnings on some compiler/systems,
like:

  75     8.89 ubuntu:20.04-x-powerpc64el    : FAIL gcc version 10.3.0 (Ubuntu 10.3.0-1ubuntu1~20.04)
        inlined from 'branch_type_stat_display' at util/branch.c:152:4:
    /usr/powerpc64le-linux-gnu/include/bits/stdio2.h:100:10: error: '%8s' directive argument is null [-Werror=format-overflow=]
      100 |   return __fprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt,
          |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      101 |    __va_arg_pack ());
          |    ~~~~~~~~~~~~~~~~~

Signed-off-by: Anshuman Khandual 
Cc: Alexander Shishkin 
Cc: Catalin Marinas 
Cc: Ingo Molnar 
Cc: James Clark 
Cc: Jiri Olsa 
Cc: Mark Rutland 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Robin Murphy 
Cc: Stephen Rothwell 
Cc: Suzuki Poulouse 
Cc: Thomas Gleixner 
Cc: Will Deacon 
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220824044822.70230-7-anshuman.khandual@arm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf branch: Add system error and not in transaction branch types

2022-10-04T11:55:20+00:00

This updates the perf tool with generic branch type classification with
two new branch types i.e system error (PERF_BR_SERROR) and not in
transaction (PERF_BR_NO_TX) which got updated earlier in the kernel.

This also updates corresponding branch type strings in
branch_type_name().

Committer notes:

At perf tools merge time this is only on PeterZ's tree, at:

  git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git perf/core

So for testing one has to build a kernel with that branch, then test
the tooling side from:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git perf/core

Reviewed-by: James Clark 
Signed-off-by: Anshuman Khandual 
Cc: Alexander Shishkin 
Cc: Catalin Marinas 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Mark Rutland 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Robin Murphy 
Cc: Suzuki Poulouse 
Cc: Thomas Gleixner 
Cc: Will Deacon 
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220824044822.70230-6-anshuman.khandual@arm.com
Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync linux/perf_event.h with the kernel sources

2022-08-19T18:56:10+00:00

To pick the trivial change in:

  119a784c81270eb8 ("perf/core: Add a new read format to get a number of lost samples")

Signed-off-by: Namhyung Kim 
Acked-by: Jiri Olsa 
Cc: Ian Rogers 
Cc: Ingo Molnar 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/20220819003644.508916-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Sync addition of PERF_MEM_SNOOPX_PEER

2022-08-11T22:11:36+00:00

Add a flag to the 'perf mem' data struct to signal that a request caused
a cache-to-cache transfer of a line from a peer of the requestor and
wasn't sourced from a lower cache level.

The line being moved from one peer cache to another has latency and
performance implications.

On Arm64 Neoverse systems the data source can indicate a cache-to-cache
transfer but not if the line is dirty or clean, so instead of
overloading HITM define a new flag that indicates this type of transfer.

Committer notes:

This really is not syncing with the kernel since the patch to the kernel
wasn't merged.

But we're going ahead of this as it seems trivial and is just a matter
of the perf kernel maintainers to give their ack or for us to find
another way of expressing this in the perf records synthesized in
userspace from the ARM64 hardware traces.

Reviewed-by: Leo Yan 
Signed-off-by: Ali Saidi 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Anshuman Khandual 
Cc: German Gomez 
Cc: Gustavo A. R. Silva 
Cc: Ian Rogers 
Cc: Ingo Molnar 
Cc: James Clark 
Cc: Jiri Olsa 
Cc: John Garry 
Cc: Kajol Jain 
Cc: Like Xu 
Cc: Mark Rutland 
Cc: Mike Leach 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Timothy Hayes 
Cc: Will Deacon 
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220811062451.435810-2-leo.yan@linaro.org
Signed-off-by: Leo Yan 
Signed-off-by: Arnaldo Carvalho de Melo