diff options
Diffstat (limited to 'tools/perf/arch')
| -rw-r--r-- | tools/perf/arch/arm64/util/arm-spe.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c index 4c916626c203..bacdf366040d 100644 --- a/tools/perf/arch/arm64/util/arm-spe.c +++ b/tools/perf/arch/arm64/util/arm-spe.c @@ -14,6 +14,7 @@ #include "../../../util/cpumap.h" #include "../../../util/event.h" #include "../../../util/evsel.h" +#include "../../../util/evsel_config.h" #include "../../../util/evlist.h" #include "../../../util/session.h" #include <internal/lib.h> // page_size @@ -32,6 +33,29 @@ struct arm_spe_recording { struct evlist *evlist; }; +static void arm_spe_set_timestamp(struct auxtrace_record *itr, + struct evsel *evsel) +{ + struct arm_spe_recording *ptr; + struct perf_pmu *arm_spe_pmu; + struct evsel_config_term *term = evsel__get_config_term(evsel, CFG_CHG); + u64 user_bits = 0, bit; + + ptr = container_of(itr, struct arm_spe_recording, itr); + arm_spe_pmu = ptr->arm_spe_pmu; + + if (term) + user_bits = term->val.cfg_chg; + + bit = perf_pmu__format_bits(&arm_spe_pmu->format, "ts_enable"); + + /* Skip if user has set it */ + if (bit & user_bits) + return; + + evsel->core.attr.config |= bit; +} + static size_t arm_spe_info_priv_size(struct auxtrace_record *itr __maybe_unused, struct evlist *evlist __maybe_unused) @@ -121,9 +145,14 @@ static int arm_spe_recording_options(struct auxtrace_record *itr, */ evlist__to_front(evlist, arm_spe_evsel); - /* In the case of per-cpu mmaps, sample CPU for AUX event. */ - if (!perf_cpu_map__empty(cpus)) + /* + * In the case of per-cpu mmaps, sample CPU for AUX event; + * also enable the timestamp tracing for samples correlation. + */ + if (!perf_cpu_map__empty(cpus)) { evsel__set_sample_bit(arm_spe_evsel, CPU); + arm_spe_set_timestamp(itr, arm_spe_evsel); + } /* Add dummy event to keep tracking */ err = parse_events(evlist, "dummy:u", NULL); |