linux.git/tools/perf/util/session.c, branch v5.16

Merge remote-tracking branch 'torvalds/master' into perf/core

2021-10-26T14:03:02+00:00

To pick up the fixes from upstream.

Fix simple conflict on session.c related to the file position fix that
went upstream and is touched by the active decomp changes in perf/core.

Signed-off-by: Arnaldo Carvalho de Melo

perf session: Introduce reader EOF function

2021-10-25T16:47:41+00:00

Introduce function to check end-of-file status.

Reviewed-by: Jiri Olsa 
Signed-off-by: Alexey Bayduraev 
Cc: Adrian Hunter 
Cc: Alexander Antonov 
Cc: Alexander Shishkin 
Cc: Alexei Budankov 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Riccardo Mancini 
Link: https://lore.kernel.org/r/b3b0e0904da01f9ec84d4ae9368df99ecd231598.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf session: Introduce reader return codes

2021-10-25T16:47:41+00:00

Add READER_OK and READER_NODATA return codes to make the code more
clear.

Suggested-by: Jiri Olsa 
Reviewed-by: Jiri Olsa 
Reviewed-by: Riccardo Mancini 
Signed-off-by: Alexey Bayduraev 
Tested-by: Riccardo Mancini 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Antonov 
Cc: Alexander Shishkin 
Cc: Alexei Budankov 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/5fca481e91c3c5d2ba033d4c6e9b969f8033ab0f.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf session: Move the event read code to a separate function

2021-10-25T16:47:41+00:00

Separate the reading code of a single event to a new
reader__read_event() function.

Suggested-by: Jiri Olsa 
Reviewed-by: Jiri Olsa 
Reviewed-by: Riccardo Mancini 
Signed-off-by: Alexey Bayduraev 
Tested-by: Riccardo Mancini 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Antonov 
Cc: Alexander Shishkin 
Cc: Alexei Budankov 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/ffe570d937138dd24f282978ce7ed9c46a06ff9b.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf session: Move unmap code to reader__mmap

2021-10-25T16:47:41+00:00

Move the unmapping code to reader__mmap(), so that the mmap code is
located together.

Move the head/file_offset computation to reader__mmap(), so all the
offset computation is located together and in one place only.

Suggested-by: Jiri Olsa 
Reviewed-by: Jiri Olsa 
Reviewed-by: Riccardo Mancini 
Signed-off-by: Alexey Bayduraev 
Tested-by: Riccardo Mancini 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Antonov 
Cc: Alexander Shishkin 
Cc: Alexei Budankov 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/f1c5e17cfa1ecfe912d10b411be203b55d148bc7.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf session: Move reader map code to a separate function

2021-10-25T16:47:41+00:00

Move the mapping code into a separate reader__mmap() function.

Suggested-by: Jiri Olsa 
Reviewed-by: Jiri Olsa 
Reviewed-by: Riccardo Mancini 
Signed-off-by: Alexey Bayduraev 
Tested-by: Riccardo Mancini 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Antonov 
Cc: Alexander Shishkin 
Cc: Alexei Budankov 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/e445de5bb85bbd91287986802d6ed0ce1b419b5a.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf session: Move init/release code to separate functions

2021-10-25T16:47:41+00:00

Separate init/release code into reader__init() and reader__release_decomp()
functions.

Remove a duplicate call to ui_progress__init_size(), the same call can
be found in __perf_session__process_events().

For multiple traces ui_progress should be initialized by total size
before reader__init() calls.

Suggested-by: Jiri Olsa 
Reviewed-by: Jiri Olsa 
Reviewed-by: Riccardo Mancini 
Signed-off-by: Alexey Bayduraev 
Tested-by: Riccardo Mancini 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Antonov 
Cc: Alexander Shishkin 
Cc: Alexei Budankov 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/8bacf247de220be8e57af1d2b796322175f5e257.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf session: Introduce decompressor in reader object

2021-10-25T16:47:41+00:00

Introduce a decompressor data structure with pointers to decomp
objects and to zstd object.

We cannot just move session->zstd_data to decomp_data as
session->zstd_data is not only used for decompression.

Adding decompressor data object to reader object and introducing
active_decomp into perf_session object to select current decompressor.

Thus decompression could be executed separately for each data file.

Reviewed-by: Jiri Olsa 
Reviewed-by: Riccardo Mancini 
Signed-off-by: Alexey Bayduraev 
Tested-by: Riccardo Mancini 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Antonov 
Cc: Alexander Shishkin 
Cc: Alexei Budankov 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/0eee270cb52aebcbd029c8445d9009fd17709d53.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf session: Move all state items to reader object

2021-10-25T16:47:41+00:00

We need all the state info about reader in separate object to load data
from multiple files, so we can keep multiple readers at the same time.
Moving all items that need to be kept from reader__process_events to
the reader object. Introducing mmap_cur to keep current mapping.

Suggested-by: Jiri Olsa 
Reviewed-by: Jiri Olsa 
Reviewed-by: Riccardo Mancini 
Signed-off-by: Alexey Bayduraev 
Tested-by: Riccardo Mancini 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Antonov 
Cc: Alexander Shishkin 
Cc: Alexei Budankov 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/5c7bdebfaadd7fcb729bd999b181feccaa292e8e.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add support for PERF_RECORD_AUX_OUTPUT_HW_ID

2021-10-20T14:22:27+00:00

The PERF_RECORD_AUX_OUTPUT_HW_ID event provides a way to match AUX output
data like Intel PT PEBS-via-PT back to the event that it came from, by
providing a hardware ID that is present in the AUX output.

Reviewed-by: Alexander Shishkin 
Reviewed-by: Andi Kleen 
Signed-off-by: Adrian Hunter 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Leo Yan 
Cc: Mark Rutland 
Cc: Peter Zijlstra 
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20210907163903.11820-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo