kernel/tools/perf/lib/evsel.c, branch linux-rolling-stable

libperf: Move to tools/lib/perf

2020-01-06T14:46:09Z

Move libperf from its current location under tools/perf to a separate directory under tools/lib/. Also change various paths (mainly includes) to reflect the libperf move to a separate directory and add a new directory under MANIFEST. Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191206210612.8676-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf evsel: Add functions to enable/disable for a specific CPU

2019-11-29T15:20:45Z

Refactor the existing functions to use these functions internally. Used in the next patch. Signed-off-by: Andi Kleen Acked-by: Jiri Olsa Link: http://lore.kernel.org/lkml/20191121001522.180827-12-andi@firstfloor.org Link: http://lore.kernel.org/lkml/20191127232657.GL84886@tassilo.jf.intel.com # Fix Signed-off-by: Arnaldo Carvalho de Melo

perf evsel: Add functions to close evsel on a CPU

2019-11-29T15:20:45Z

Refactor the existing all CPU function to use the per CPU close internally. Export APIs to close per CPU. Signed-off-by: Andi Kleen Acked-by: Jiri Olsa Link: http://lore.kernel.org/lkml/20191121001522.180827-7-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo

perf evsel: Avoid close(-1)

2019-11-06T18:43:05Z

In some weak fallback cases close can be called a lot with -1. Check for this case and avoid calling close then. This is mainly to shut up valgrind which complains about this case. Signed-off-by: Andi Kleen Acked-by: Jiri Olsa Cc: Kan Liang Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20191020175202.32456-3-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Add perf_evsel__alloc_id/perf_evsel__free_id functions

2019-09-25T12:51:48Z

Add perf_evsel__alloc_id()/perf_evsel__free_id() functions to libperf as internal functions. Move 'struct perf_sample_id' to internal/evsel.h header and change 'struct perf_sample_id::evsel' to 'struct perf_evsel' and the related code that touches it. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20190913132355.21634-28-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Add perf_evsel__attr() function

2019-07-29T21:34:46Z

Add a perf_evsel__attr() function to get attr pointer from a perf_evsel instance. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190721112506.12306-71-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Add perf_evsel__cpus()/threads() functions

2019-07-29T21:34:46Z

Add the following functions: perf_evsel__cpus() perf_evsel__threads() to access the evsel's cpus and threads objects. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190721112506.12306-68-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Adopt perf_evsel__enable()/disable()/apply_filter() functions

2019-07-29T21:34:46Z

Move the following functions: evsel__enable() evsel__disable() evsel__apply_filter() to libperf with the following names: perf_evsel__enable() perf_evsel__disable() perf_evsel__apply_filter() Export only perf_evsel__enable()/disable(), keeping the perf_evsel__apply_filter() one private for the moment. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190721112506.12306-66-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Adopt perf_evsel__read() function from tools/perf

2019-07-29T21:34:46Z

Move the perf_evsel__read() function to libperf as a public interface together with struct perf_counts_values for returning counter values. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190721112506.12306-65-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Adopt simplified perf_evsel__close() function from tools/perf

2019-07-29T21:34:46Z

Add perf_evsel__close() function to libperf while keeping a tools/perf specific evsel__close() to free ids. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190721112506.12306-64-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo