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perf cpumap: Add new struct for cpu aggregation 

This struct currently has only a single int member so that it can be
used as a drop in replacement for the existing behaviour.

Comparison and constructor functions have also been added that will
replace usages of '==' and '= -1'.

No functional changes.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-4-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
James Clark 2020-11-26 16:13:19 +02:00 committed by Arnaldo Carvalho de Melo
parent 91585846f1
commit fa265e59b8
2 changed files with 26 additions and 0 deletions
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18
tools/perf/util/cpumap.c
View File

@ -586,3 +586,21 @@ const struct perf_cpu_map *cpu_map__online(void) /* thread unsafe */
return online;
}
bool cpu_map__compare_aggr_cpu_id(struct aggr_cpu_id a, struct aggr_cpu_id b)
{
return a.id == b.id;
}
bool cpu_map__aggr_cpu_id_is_empty(struct aggr_cpu_id a)
{
return a.id == -1;
}
struct aggr_cpu_id cpu_map__empty_aggr_cpu_id(void)
{
struct aggr_cpu_id ret = {
.id = -1
};
return ret;
}

8
tools/perf/util/cpumap.h
View File

@ -7,6 +7,10 @@
#include <internal/cpumap.h>
#include <perf/cpumap.h>
struct aggr_cpu_id {
int id;
};
struct perf_record_cpu_map_data;
struct perf_cpu_map *perf_cpu_map__empty_new(int nr);
@ -64,4 +68,8 @@ int cpu_map__build_map(struct perf_cpu_map *cpus, struct perf_cpu_map **res,
int cpu_map__cpu(struct perf_cpu_map *cpus, int idx);
bool cpu_map__has(struct perf_cpu_map *cpus, int cpu);
bool cpu_map__compare_aggr_cpu_id(struct aggr_cpu_id a, struct aggr_cpu_id b);
bool cpu_map__aggr_cpu_id_is_empty(struct aggr_cpu_id a);
struct aggr_cpu_id cpu_map__empty_aggr_cpu_id(void);
#endif /* __PERF_CPUMAP_H */