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perf mmap: Store real cpu number in 'struct perf_mmap' 

Store the real cpu number in 'struct perf_mmap', which will be used by
python interface that allows user to read a particular memory map for
given cpu.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jaroslav Škarvada <jskarvad@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180817114556.28000-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
Jiri Olsa 2018-08-17 13:45:55 +02:00 committed by Arnaldo Carvalho de Melo
parent b946cd3734
commit 31fb4c0d7b
3 changed files with 5 additions and 3 deletions
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2
tools/perf/util/evlist.c
View File

@ -803,7 +803,7 @@ static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
if (*output == -1) {
*output = fd;
if (perf_mmap__mmap(&maps[idx], mp, *output) < 0)
if (perf_mmap__mmap(&maps[idx], mp, *output, evlist_cpu) < 0)
return -1;
} else {
if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, *output) != 0)

3
tools/perf/util/mmap.c
View File

@ -164,7 +164,7 @@ void perf_mmap__munmap(struct perf_mmap *map)
auxtrace_mmap__munmap(&map->auxtrace_mmap);
}
int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd)
int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int cpu)
{
/*
* The last one will be done at perf_mmap__consume(), so that we
@ -191,6 +191,7 @@ int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd)
return -1;
}
map->fd = fd;
map->cpu = cpu;
if (auxtrace_mmap__mmap(&map->auxtrace_mmap,
&mp->auxtrace_mp, map->base, fd))

3
tools/perf/util/mmap.h
View File

@ -18,6 +18,7 @@ struct perf_mmap {
void *base;
int mask;
int fd;
int cpu;
refcount_t refcnt;
u64 prev;
u64 start;
@ -60,7 +61,7 @@ struct mmap_params {
struct auxtrace_mmap_params auxtrace_mp;
};
int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd);
int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int cpu);
void perf_mmap__munmap(struct perf_mmap *map);
void perf_mmap__get(struct perf_mmap *map);