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author | Ingo Molnar <mingo@kernel.org> | 2019-03-09 17:00:17 +0100 |
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committer | Ingo Molnar <mingo@kernel.org> | 2019-03-09 17:00:17 +0100 |
commit | b339da480315505aa28a723a983217ebcff95c86 (patch) | |
tree | 4194e7a3b4aa986335eeaf697652a4ac163c45ef /tools/perf/util/pmu.c | |
parent | perf/core: Mark expected switch fall-through (diff) | |
parent | perf data: Force perf_data__open|close zero data->file.path (diff) | |
download | linux-dev-b339da480315505aa28a723a983217ebcff95c86.tar.xz linux-dev-b339da480315505aa28a723a983217ebcff95c86.zip |
Merge tag 'perf-core-for-mingo-5.1-20190307' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/core changes from Arnaldo Carvalho de Melo:
perf bpf:
Arnaldo Carvalho de Melo:
- Automatically add BTF ELF markers to 'perf trace' BPF programs, so that
tools such as 'bpftool map dump' can pretty print map keys and values.
perf c2c:
Jiri Olsa:
- Fix report for empty NUMA node.
perf diff:
Jin Yao:
- Support --time, --cpu, --pid and --tid filter options.
perf probe:
Arnaldo Carvalho de Melo:
- Clarify error message about not finding kernel modules debuginfo.
perf record:
Jiri Olsa:
- Fixup probing for max attr.precise_ip.
perf trace:
Arnaldo Carvalho de Melo:
- Add missing %s lost in the 'msg_flags' recvmmsg arg when adding prefix suppression logic.
perf annotate:
Arnaldo Carvalho de Melo:
- Calculate the max instruction name, align column to that, removing the
hardcoded max 6 chars and cope with instructions with names longer than that,
such as vpmovmskb, vpcmpeqb, etc.
kernel:
Song Liu:
- Consider events with attr.bpf_event set as side-band.
Gustavo A. R. Silva:
- Mark expected switch fall-through in perf_event_parse_addr_filter().
Libraries:
Jiri Olsa:
- Fix leaks and double frees on error paths.
libtraceevent:
Tony Jones:
- Fix buffer overflow in arg_eval().
python scripting:
Tony Jones:
- More python3 fixes.
Trivial:
Yang Wei:
- Remove needless extra semicolon in clang C++ glue code.
Intel PT/BTS:
Adrian Hunter:
- Improve auxtrace address filter error message when there is no DSO.
- Fix divide by zero when TSC is not available.
- Further improvements to the export to sqlite/posgresql python scripts
and to the GUI sqlviewer, exporting 'parent_id' so that we have enable
the creation of call trees.
Andi Kleen:
- Generalize function to copy from thread addr space from intel-bts code.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/pmu.c')
-rw-r--r-- | tools/perf/util/pmu.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 51d437f55d18..6199a3174ab9 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -752,6 +752,19 @@ perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused) return NULL; } +static int pmu_max_precise(const char *name) +{ + char path[PATH_MAX]; + int max_precise = -1; + + scnprintf(path, PATH_MAX, + "bus/event_source/devices/%s/caps/max_precise", + name); + + sysfs__read_int(path, &max_precise); + return max_precise; +} + static struct perf_pmu *pmu_lookup(const char *name) { struct perf_pmu *pmu; @@ -784,6 +797,7 @@ static struct perf_pmu *pmu_lookup(const char *name) pmu->name = strdup(name); pmu->type = type; pmu->is_uncore = pmu_is_uncore(name); + pmu->max_precise = pmu_max_precise(name); pmu_add_cpu_aliases(&aliases, pmu); INIT_LIST_HEAD(&pmu->format); |